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IMMUNOLOGY:
A BACKGROUND




 Reported by:
 MA. LOURDES L. MOJARES, R. Ph.
 CEU Graduate School
 Ph. D. in Pharmacy
IMMUNOLOGY: DEFINITION
Study of;
1. the protection of the human
body from foreign
macromolecules or invading
organisms.

2 responses of the human body
to them.
OUR FIRST LINE OF DEFENSE:
These  cells include;
 1. macrophages
 2. neutrophils

 that engulf foreign organisms and
 kill them without the need for
 antibodies.
OUR SECOND LINE OF DEFENSE:
 The specific or adaptive immune
 system

Which may take days to respond
to a primary invasion (that is
infection by an organism that has
not hitherto been seen).
THE IMMUNE SYSTEM
1.   Innate or Non-specific
     Immune System

1.   Adaptive or Specific Immune
     System
OVERVIEW OF THE IMMUNE
SYSTEM
DEVELOPMENT OF THE CELLS OF
THE IMMUNE SYSTEM
CELLS OF THE IMMUNE SYSTEM
MAIN FUNCTION OF THE IMMUNE
SYSTEM
The ability to distinguish
 between self and non-self is
 necessary to protect the
 organism from invading
 pathogens and to eliminate
 modified or altered cells (e.g.
 malignant cells).
MAIN FUNCTION OF THE IMMUNE
SYSTEM
 It is important to remember
 that infection with an organism
 does not necessarily mean
 diseases, since the immune
 system in most cases will be
 able to eliminate the infection
 before disease occurs.
CAUSES OF A DISEASE:
When the bolus of infection is

high.

The virulence of the microrganism
is great.

When   immunity is compromised.
NON – SPECIFIC           SPECIFIC
IMMUNITY                 IMMUNITY
Response is antigen-     Response is antigen-
dependent                dependent
There is immediate       There is lag time between
maximal response         exposure and maximal
                         response
Non-antigen specific     Antigen - specific


Exposure results in no   Exposure results in
immunologic memory       immunologic memory
INNATE / NON-SPECIFIC
IMMUNITY
The elements of the innate
(non-specific) immune system
include;

 1. anatomical barriers
 2. secretory molecules
 3. cellular components
ANATOMICAL BARRIERS TO
INFECTIONS
1. MECHANICAL FACTORS
The skin acts as our first line of
  defense against invading
  organisms.

  Movement due to cilia or
  peristalsis helps to keep air
  passages and the gastrointestinal
  tract free from microorganisms.
ANATOMICAL BARRIERS TO
INFECTIONS
1. MECHANICAL FACTORS
The flushing action of tears and
  saliva helps prevent infection of
  the eyes and mouth.

  The trapping effect of mucus that
  lines the respiratory and
  gastrointestinal tract helps protect
  the lungs and digestive systems
  from infection.
ANATOMICAL BARRIERS TO
INFECTIONS
2. CHEMICAL FACTORS
Fatty acids in sweat inhibit the growth of
  bacteria.

Lysozyme and phospholipase found in
  tears, saliva and nasal secretions can
  breakdown the cell wall of bacteria
  and destabilize bacterial membranes.
ANATOMICAL BARRIERS TO
INFECTIONS
2. CHEMICAL FACTORS
The low pH of sweat and gastric
  secretions prevents growth of
  bacteria.

Defensins (low MW proteins) found in the
  lung and gastrointestinal tract have
  antimicrobial activity.
ANATOMICAL BARRIERS TO
INFECTIONS
3. BIOLOGICAL FACTORS
The normal flora of the skin and in the
  gastrointestinal tract can
  prevent the colonization of pathogenic
  bacteria by;
  1. secreting toxic substances
  2. competing with pathogenic bacteria
  for nutrients or attachment to cell
  surfaces.
HUMORAL BARRIERS TO
INFECTIONS
Humoral factors play an important role
  in inflammation, which is
  characterized by edema and the
  recruitment of phagocytic cells.

  These humoral factors are found in
  serum or they are formed at the site
  of infection.
HUMORAL BARRIERS TO
INFECTIONS

1. Complement System

  The complement system is the major
  humoral non-specific defense
  mechanism.
HUMORAL BARRIERS TO
INFECTIONS
1. Complement System
   Once activated complement can lead
   to;
   a. increased vascular permeability
b. recruitment of phagocytic cells, c.
   lysis
d. opsonization of bacteria
HUMORAL BARRIERS TO
INFECTIONS
2. Coagulation System

  Some products of the coagulation
  because of their ability to;
  a. increase vascular permeability b.
  act as chemotactic agents for
  phagocytic cells.
HUMORAL BARRIERS TO
INFECTIONS
2. Coagulation System
   In addition, some of the products of
    the coagulation system are directly
    antimicrobial.

  For example, beta-lysin, a protein
  produced by platelets during
  coagulation can lyse many Gram
  positive bacteria by acting as a
  cationic detergent.
HUMORAL BARRIERS TO
INFECTIONS
2. Lactoferrin and Transferrin

By binding iron, an essential nutrient
  for bacteria, these proteins limit
  bacterial growth.
HUMORAL BARRIERS TO
INFECTIONS
3. Interferons
Interferons are proteins that can limit
    virus replication in cells.

4. Lysozyme
Lysozyme breaks down the cell wall of
   the bacteria.
HUMORAL BARRIERS TO
INFECTIONS
5. Interleukin – 1
Il-1 induces fever and the production of
    acute phase proteins, some of which
    are antimicrobial because they can
    opsonize bacteria.
PHYSICO-CHEMICAL BARRIERS
   TO INFECTIONS
SYSTEM / ORGAN   ACTIVE COMPONENT   EFFECTOR MECHANISM


SKIN             SQUAMOUS CELLS /   DESQUAMATION
                 SWEAT              FLUSHING
                                    ORGANIC ACIDS
GI TRACT         COLUMNAR CELLS     PERISTALSIS
                                    LOW pH
                                    BILE ACID
                                    FLUSHING
                                    THIOCYANATE
LUNGS            TRACHEAL CILIA     MUCOSCIALARY ELEVATOR
                                    SURFACTANT

NASOPHARYNX      MUCUS, SALIVA,     FLUSHING
AND EYE          TEARS              LYSOZYME
PHYSICO-CHEMICAL BARRIERS
  TO INFECTIONS
SYSTEM / ORGAN   ACTIVE COMPONENT   EFFECTOR MECHANISM


CIRCULATION    PHAGOCYTIC CELLS     PHAGOCYTOSIS
AND                                 AND
LYPHOID ORGANS                      INTRACELLULAR KILLING
                 NK CELLS           DIRECT
                 AND                AND
                 K CELLS            ANTIBODY DEPENDENT
                                    CYTOLYSIS
                 LAK                IL – 2 ACTIVATED CYTOLYSIS
PHYSICO-CHEMICAL BARRIERS
  TO INFECTIONS
SYSTEM /   ACTIVE COMPONENT   EFFECTOR MECHANISM
ORGAN

SERUM      LACTOFERRIN        IRON BINDING
           AND
           TRANSFERRIN
           INTERFERONS        ANTIVIRAL PROTEINS


           TNF - ALPHA        ANTIVIRAL,
                              PHAGOCYTE ACTIVATION
PHYSICO-CHEMICAL BARRIERS
  TO INFECTIONS

SYSTEM / ORGAN ACTIVE COMPONENT   EFFECTOR MECHANISM



SERUM         LYSOZYME            PEPTIDOGLYCAN
                                  HYDROLYSIS

              FIBRONECTIN         OPSONIZATION
                                  AND
                                  PHAGOCYTOSIS
              COMPLEMENT          OPZONIZATION,
                                  ENHANCED
                                  PHAGOCYTOSIS,
                                  INFLAMMATION
CELLULAR BARRIERS TO
INFECTIONS
Part of the inflammatory
 response is the recruitment of
 polymorphonucleareosinophile
 s and macrophages to sites of
 infection.
CELLULAR BARRIERS TO
INFECTIONS
1. NeutrophilsPolymorphonuclear cells
 are recruited to the site of infection
 where they phagocytose invading
 organisms and kill them intracellularly.

 In addition, PMNs contribute to collateral
 tissue damage that occurs during
 inflammation.
CELLULAR BARRIERS TO
INFECTIONS
2. Macrophages and Newly
   Recruited Monocytes

  Differentiate into macrophages,
  also function in phagocytosis
  and intracellular killing of
  microorganisms.
CELLULAR BARRIERS TO
 INFECTIONS
3. Natural Killers
   (NK)andLymphokine Activated
   Killer (LAK) cells
NK and LAK cells can nonspecifically kill virus
    infected and tumor cells.

    These cells are not part of the inflammatory
    response but they are important in
    nonspecific immunity to viral infections
    and tumor surveillance.
NK CELLS AND ITS ACTIVATION
CELLULAR BARRIERS TO
INFECTIONS
4. Eosinophils

   They have proteins in granules
   that are effective in killing
   certain parasites.
KILLER (K) CELLS
Killer(K) cells are not a
 morphologically distinct type of
 cell.

Rather  a K cell is any cell that
 mediates antibody-dependent
 cellular cytotoxicity (ADCC).
KILLER (K) CELLS
InADCC antibody acts as a link to
 bring the K cell and the target cell
 together to allow killing to occur.

K cells have on their surface an Fc
 receptor for antibody and thus they
 can recognize, bind and kill target
 cells coated with antibody.
KILLER (K) CELLS

Killercells which have Fc receptors
 include NK, LAK, and macrophages
 which have an Fc receptor for IgG
 antibodies and eosinophils which
 have an Fc receptor for IgE
 antibodies.
KILLING OF OPSONIZED
TARGET BY THE K CELL
PHAGOCYTOSIS AND
 INTRACELLULAR KILLING
A. PHAGOCYTIC CELLS
1. Neutrophiles / Polymorphonuclear (PMN)
    Cells
1.1 primary or azurophilic granules, which are
    abundant in young newly formed PMNs, contain
    cationic proteins and defensins that can kill
    bacteria, proteolytic enzymes like elastase, and
    cathepsin G to breakdown proteins, lysozyme to
    break down bacterial cell walls, and
    characteristically, myeloperoxidase, which is
    involved in the generation of bacteriocidal
    compounds.
PHAGOCYTOSIS AND
 INTRACELLULAR KILLING
A. PHAGOCYTIC CELLS
1. Neutrophiles / Polymorphonuclear (PMN)
   Cells
   1. 2 secondary or specific granule

 These contain lysozyme, NADPH oxidase
 components, which are involved in the generation
 of toxic oxygen products, and characteristically
 lactoferrin, an iron chelating protein and B12-
 binding protein.
PHAGOCYTOSIS AND
 INTRACELLULAR KILLING
A. PHAGOCYTIC CELLS
2. Monocytes / Macrophages

Macrophages are phagocytic cells that have a
 characteristic kidney-shaped nucleus.

 They can be identified morphologically or by
 the presence of the CD14 cell surface marker.
OXYGEN –INDEPENDENT MECHANISMS
OF INTRACELLULAR KILLING
EFFECTOR                      FUNCTION
MOLECULE
Cationic Proteins       Damage to microbial
(including cathepsin)   membranes
Lysozyme                Splits mucopeptide in
                        the bacterial cell wall
Lactoferrin             Deprives proliferating
                        bacteria of iron
Proteolytic and         Digestion of killed
Hydrolytic Enzymes      organisms
RESPONSE OF PHAGOCYTES TO
INFECTION
 Circulating  PMNs and monocytes respond to
    danger (SOS) signals generated at the site of an
    infection.

    SOS signals include;
     1. N-formyl-methionine containing peptides
    released by bacteria
     2. clotting system peptides
     3. complement products
     4. cytokines released from tissue macrophages
    that have encountered bacteria in tissue
RESPONSE OF PHAGOCYTES TO
INFECTION
Some  of the SOS signals stimulate
endothelial cells near the site of the
infection to express cell adhesion
molecules such as;
1. ICAM-1
2. selectins
which bind to components on the surface
of phagocytic cells and cause the
phagocytes to adhere to the endothelium.
RESPONSE OF PHAGOCYTES TO
INFECTION

Vasodilators produced at the site of
 infection cause the junctions between
 endothelial cells to loosen and the
 phagocytes then cross the endothelial
 barrier by “squeezing” between the
 endothelial cells in a process called
 “DIAPEDESIS.”
CHEMOTACTIC RESPONSE TO
INFLAMMATORY STIMULUS
RESPONSE OF PHAGOCYTES TO
INFECTION

Once  in the tissue spaces some of the
 SOS signals attract phagocytes to the
 infection site by chemotaxis (movement
 toward an increasing chemical
 gradient).
RESPONSE OF PHAGOCYTES TO
INFECTION

The SOS signals also activate the
 phagocytes, which results in;

1. increased phagocytosis
2. intracellular killing of the invading
organisms.
DISEASES OF THE
       IMMUNE SYSTEM

ALLERGIES:
Asthma (Bronchial, Exercise Induced)
Dermatitis (Contact and Atopic)
Arthritis (Rheumatoid and Reactive)
ALLERGY: DEFINITION
An immune response or
 reaction to substances that are
 usually not harmful.

Allergies are pretty common.
 Both genes and environment
 play a role.
COMMON ALLERGENS:
 Drugs
 Dust
 Food
 Insect venom
 Mold
 Pet and other animal dander
 Pollen
RARE ALLERGENS:

   Hot or Cold Temperatures

   Sunlight

Friction (clothing
/garters, rubbing or stroking the
skin)
ALLERGY: SYMPTOMS

Allergens  that one breathes
 1. stuffy nose
 2. itchy nose and throat
 3. mucus production
 4. cough
 5. wheezing
ALLERGY: SYMPTOMS

Allergens    that touch the eyes

 1. itchy
 2. watery
 3. red
 4. swollen
ALLERGY: SYMPTOMS

Allergens   that one gets from
 foods eaten / drugs taken.
 1. nausea and vomiting
 2. abdominal pain
 3. cramps
 4. diarrhea
 5. life-threatening reaction
ALLERGY TESTING:
   Complete Blood Count (CBC)

Eosinophil WBC Count
An absolute eosinophil count is a
blood test that measures the
number of white blood cells called
eosinophils.
ALLERGY TESTING:
Eosinophil  WBC Count
  This test may help diagnose:
1. Acute hypereosinophilic syndrome (a
  rare but sometimes fatal leukemia-like
  condition)
2. An allergic reaction (can also reveal
  how severe the reaction is)
3. Early stages of Cushing's disease
4. Infection by a parasite
ABNORMALLY HIGH
EOSINOPHIL WBC COUNT:

 Asthma
 Autoimmune diseases
 Eczema
 Hay fever
 Leukemia
ABNORMALLY LOW
EOSINOPHIL WBC COUNT:
CAUSES

   Alcohol intoxication

 Over    production of certain steroids
    in the body (such as cortisol)
ALLERGY: TREATMENT

Anaphylaxis - treated with
 epinephrine

   Avoid exposure to ―triggers‖

Anthihistamines
ALLERGY: TREATMENT
Decongestants   – used with
 caution in patients with;

 1. hypertension
 2. heart problems,
 3. prostate enlargement
ALLERGY: TREATMENT
Leukotriene  inhibitors such as
 Zafirlukast (Accolate) and
 (Monteleukast) Singulair.

 For treatment of indoor and
 outdoor allergies and asthma.
ALLERGY: TREATMENT
 Allergy Shots or
 Immunotherapy
ALLERGY: PROGNOSIS
 Most
     allergies can be easily treated with
 medication.

 Some  children may outgrow an
 allergy, especially food allergies.

 However, once a substance has triggered an
 allergic reaction, it usually continues to
 affect the person.
ALLERGY: PROGNOSIS

 Allergyshots / Immunology are most
 effective when used to treat people with hay
 fever symptoms and severe insect sting
 allergies.

 Theyare not used to treat food allergies
 because of the danger of a severe reaction.
ALLERGY: PROGNOSIS
 Allergy  shots may need years of treatment,
  but they work in most cases.
  However, they may cause uncomfortable
  side effects;
 hives and rash

 Anaphylaxis (life-threatening allergic
  reaction)
 Breathing problems and discomfort during
  the allergic reaction
 Drowsiness and other side effects of
  medicines
ALLERGY: PREVENTION
Breastfeeding babies for 4 to 6
 months.

 Hygiene Hypothesis
 Involves exposure of an infant
 to ―allergens‖ during the first
 year of life.
ALLERGY: SYMPTOMS

Allergens    that touch the skin
 1. rash
 2. hives
 3. itching
 4. peeling
DISEASES OF THE
IMMUNE SYSTEM

ASTHMA:

BRONCHIAL
EXERCISE -INDUCED
ASTHMA: DEFINITION
A disorder that causes the
airways of the lungs to swell
and narrow, leading to;
1. wheezing
2. shortness of breath
3. chest tightness
4. coughing
ASTHMA: CAUSES
   Inflammation in the airways.

When an asthma attack
occurs, the muscles
surrounding the airways
become tight and the lining of
the air passages swells.
PATHOLOGY OF ASTHMA
ASTHMA TRIGGERS:
 Animals   (pet hair or dander)
 Dust

 Changes   in weather (most often cold
  weather)
 Chemicals in the air or in food

 Exercise

 Mold and Pollen

 Respiratory infections, such as the
  common cold
 Strong emotions (stress)

 Tobacco smoke
ASTHMA DRUG TRIGGERS:
Aspirin
NSAIDs
 These drugs act as a deregulator
 of leukotrienes.

Leukotrienes are substances in the
 body that cause inflammation and
 many of the symptoms in asthma.
ASTHMA: SYMPTOMS
Cough  with or without sputum
 (phlegm) production

Pulling in of the skin between the
 ribs when breathing (intercostal
 retractions)

Shortness of breath that gets
 worse with exercise or activity
ASTHMA: SYMPTOMS
 Wheezing,  which:
 Comes in episodes with symptom-free periods
  in between
 May be worse at night or in early morning

 May go away on its own

 Gets better when using drugs that open the
  airways (bronchodilators)
 Gets worse when breathing in cold air

 Gets worse with exercise

 Gets worse with heartburn (reflux)

 Usually begins suddenly
ASTHMA: EMERGENCY SYMPTOMS
 Bluish color to the lips and face
 Decreased level of alertness, such as
  severe drowsiness or confusion,
  during an asthma attack
 Extreme difficulty breathing
 Rapid pulse
 Severe anxiety due to shortness of
  breath
 Sweating
ASTHMA: OTHER SYMPTOMS THAT MAY
OCCUR
   Abnormal breathing pattern --
    breathing out takes more than twice
    as long as breathing in

   Breathing temporarily stops

   Chest pain

   Tightness in the chest
ASTHMA:
EXAMINATIONS AND TESTS
 Skin   Prick Test

 Placing a small amount of substances
  that may be causing your symptoms
  on the skin, most often on the
  forearm, upper arm, or back.
 Then, the skin is pricked so the
  allergen goes under the skin's
  surface.
ASTHMA:
EXAMINATIONS AND TESTS
 Skin   Prick Test

 Thehealth care provider closely
 watches the skin for swelling and
 redness or other signs of a reaction.
 Results are usually seen within 15-20
 minutes.

 Several
        allergens can be tested at the
 same time.
ASTHMA:
EXAMINATIONS AND TESTS
 Intradermal   Skin Test:

 Injecting  a small amount of allergen
  into the skin.
 Then the health care provider watches
  for a reaction at the site.
 This test is more likely to be used to
  find out if you are allergic to
  something specific, such as bee
  venom or penicillin
ASTHMA:
EXAMINATIONS AND TESTS
 Patch   Testing

 Used  to diagnose the cause of skin
  reactions that occur after the
  substance touches the skin.
 Possible allergens are taped to the
  skin for 48 hours.
 The health care provider will look at
  the area in 72 - 96 hours.
ASTHMA:
EXAMINATIONS AND TESTS
 ArterialBlood Gas
 Performed by collecting a sample of
  blood through a needle from an artery.
 The test is used to
  1. evaluate respiratory diseases and
  conditions that affect the lungs,
  2. to determine the effectiveness of
  oxygen therapy.
ASTHMA:
EXAMINATIONS AND TESTS
 Arterial Blood Gas
 3. The acid-base component of the
  test also gives information on how
  well the kidneys are functioning.
ASTHMA:
EXAMINATIONS AND TESTS

 Blood   Tests

 Measure;
 1. eosinophil count (a type of white
 blood cell)
 2. IgE (a type of immune system
 protein called an immunoglobulin)
ASTHMA:
EXAMINATIONS AND TESTS

 Chest   X-Rays

 Lung Function Tests
 (by Spirometry)

 Painless study of air volume and flow
 rate within the lungs.

 Peak Flow Measurements
SPIROMETRY:
ASTHMA: GOALS OF TREATMENT
Control   swelling of the airways.

Stay away from the substance
 triggers.
KINDS OF MEDICATION IN
TREATING ASTHMA

Control   drugs to PREVENT
 attacks

Quick-relief
           (rescue) drugs for
 use DURING attacks
LONG-TERM CONTROL DRUGS
FOR ASTHMA
   Inhaled                  Leokotriene Modifiers
    Corticosteroids           (Singulair, Accolate)

   LA – beta agonist        Cromolyn Sodium (Intal)
    Inhalers

                             Nedocromil Sodium
   Omalizumab (Xolair)
                              (Tilade)

   Combination Therapy
                             Alternate Names
                              (Combination of all
                              fours)
QUICK RELIEF (RESCUE)
DRUGS for ASTHMA
These work fast to control asthma symptoms.

You take them when you are coughing, wheezing,
having trouble breathing, or having an asthma
attack.

   Short-Acting Bronchodilators
    (Proventil, Ventolin,Xopenex)

   Oral Steroids (Corticosteroids)
ASTHMA: PROGNOSIS
 There is no cure for asthma,
 although symptoms sometimes
 improve over time.

With  proper self management and
 medical treatment, most people
 with asthma can lead normal
 lives.
ASTHMA ACTION PLAN:

A  plan for taking asthma
 medications when your condition
 is stable.
A list of asthma triggers and how
 to avoid them.
How to recognize when your
 asthma is getting worse, and
 when to call your doctor or nurse
ASTHMA:
POSSIBLE COMPLICATIONS

 Death

 Decreased   ability to exercise and take
  part in other activities
 Lack of sleep due to nighttime
  symptoms
 Permanent changes in the function of
  the lungs
 Persistent cough
 Trouble breathing that requires
  breathing assistance (ventilator)
ASTHMA: PREVENTION
Cover bedding with "allergy-
 proof" casings to reduce exposure
 to dust mites.
Remove carpets from bedrooms
 and vacuum regularly.
Use only unscented detergents
 and cleaning materials in the
 home.
ASTHMA: PREVENTION
Keep  humidity levels low and fix
 leaks to reduce the growth of
 organisms such as mold.
Keep the house clean and keep
 food in containers and out of
 bedrooms -- this helps reduce the
 possibility of cockroaches, which
 can trigger asthma attacks in
 some people.
ASTHMA: PREVENTION
 If a person is allergic to an animal
 that cannot be removed from the
 home, the animal should be kept
 out of the bedroom.

Place filtering material over the
 heating outlets to trap animal
 dander.
ASTHMA: PREVENTION
Eliminate tobacco smoke from the
 home.

This is the single most important
thing a family can do to help a
child with asthma.
DISEASES
OF THE
IMMUNE SYSTEM


   CONTACT DERMATITIS

            ALLERGIC TYPE

                IRRITANT TYPE
CONTACT DERMATITIS:
DEFINITION

 A condition in which the skin
 becomes red, sore, or inflamed
 after direct contact with a
 substance.
Two kinds of contact dermatitis:
 1. irritant dermatitis
 2. allergic dermatitis
IRRITANT CONTACT
DERMATITIS:
The   most common type.
It's caused by contact with acids,
 alkaline materials such as soaps,
 detergents, fabric softeners,
 solvents, or other chemicals.
The reaction usually looks like a
 burn.
IRRITANTS INCLUDE:
Cement
Hairdyes
Long-term exposure to wet
 diapers
Pesticides or weed killers
Rubber gloves
Shampoos
ALLERGIC CONTACT
DERMATITIS: DEFINITION
This  is caused by exposure to a
 substance or material to which
 one have become;
 1. extra sensitive
 2. allergic
COMMON ALLERGENS:
   Adhesives, including      Balsam of Peru (used
    those used for false       in many personal
    eyelashes or toupees       products and
                               cosmetics, as well as
                               in many foods and
   Antibiotics such as
                               drinks)
    neomycin rubbed on
    the surface of the
    skin                      Fabrics and clothing
COMMON ALLERGENS:
   Fragrances in                Nickel or other metals
    perfumes, cosmetics,          (found in jewelry,
    soaps, and                    watch straps, metal
    moisturizers                  zips, bra hooks,
                                  buttons,
                                  pocketknives, lipstick
   Nail polish, hair dyes,
                                  holders, and powder
    and permanent wave
                                  compacts)
    solutions
COMMON ALLERGENS:
   Poison ivy, poison oak, poison sumac, and other
    plants

   Rubber or latex gloves or shoes

   Coal Tar Products, Sulfa Ointments, Shaving
    Lotions, Sun Screens, Lime Oil ( due to
    photosensitivity)

   Air-borne allergens (Ragweed, Insecticides)
POISON IVY   NICKEL
RASH          ERYTHEMA
CONTACT DERMATITIS:
SYMPTOMS
    ALLERGIC DERMATITIS          IRRITANT
1.    Itching                      DERMATITIS
                              1.    Burning and Pain
2.   Red, Streaky, Patchy
     Rash                     2.    Dry, red, rough skin

3.   Warm and Tender Skin     3.    Cuts and Fissures
                                    on Hands
4.   Scaly, Crusty, Raw and
     Thickened Skin
LABORATORY EXAMS AND
TESTS: DERMATITIS
Allergy   Testing / Skin Patch
 Testing
 It determine which allergen is
 causing the reaction.
 Patch testing is used for certain
 patients who have long-term,
 repeated contact dermatitis.
LABORATORY EXAMS AND
TESTS: DERMATITIS
Allergy   Testing / Skin Patch
 Testing

 It requires three office visits
 and must be done by a health
 care provider with the
 experience and skill to interpret
 the results correctly.
LABORATORY EXAMS AND
TESTS: DERMATITIS
Skin   Lesion Biopsy
The removal of a piece of skin to
 diagnose or rule out an illness.

  Shave biopsy
  Punch biopsy
Excisional biopsy
Incisional biopsy
SKIN LESION BIOPSY: PROCEDURES
LABORATORY EXAMS AND
TESTS: DERMATITIS
Skin   or Nail Culture
A laboratory test to look for and
identify germs that cause
problems with the skin or nails.

It is called a mucosal culture if the
sample involves the mucous
membranes.
LABORATORY EXAMS AND
TESTS: DERMATITIS
Skin   or Nail Culture
This test may be done to diagnose the
 cause of:

 1. A fungus infection of the skin, finger
 or toenail
 2. A skin rash or sore that appears to
 be infected
 3. A skin ulcer that is not healing
DERMATITIS: TREATMENT
   Washing with lots of water to remove any traces
    of the irritant that may remain on the skin. Avoid
    further exposure to known irritants or allergens.

   In some cases, the best treatment is to do
    nothing to the area.

   Emollients or moisturizers help keep the skin
    moist, and also help skin repair itself. They
    protect the skin from becoming inflamed again.
    They are a key part of preventing and treating
    contact dermatitis.
DERMATITIS: TREATMENT
 Corticosteroid
               ointments and
 creams – reduce inflammation

 Tacrolimus
           ointment or
 Pimecrolimus cream

 Corticosteroid   pills or shots

 Wet   Dressings / Antipruritic lotions
DERMATITIS: PROGNOSIS
Contact dermatitis usually clears
 up without complications in 2 or 3
 weeks.

 However, it may return if the
 substance or material that caused
 it cannot be found or avoided.
DERMATITIS: PROGNOSIS

There may be a need to change
 your job or job habits if the
 disorder is caused by
 occupational exposure.
RHEUMATOLOGY
Rheumatoid Arthritis
Osteoarthritis
Gout
Rheumatic Fever
RHEUMATOLOGY: DEFINITION
    Deals with the diagnosis and
    therapy of rheumatic diseases.

 Deals   mainly with clinical problems
    involving joints, soft tissues,
    autoimmune diseases, vasculitis,
    and heritable connective tissue
    disorders.
RHEUMATISM: DEFINITION
A non-specific term used to
 describe any painful disorder
 affecting the loco-motor system
 including joints, muscles,
 connective tissues, soft tissues
 around the joints and bones
RHEUMATISM: DEFINITION
Also used to describe
 rheumatic fever affecting heart
 valves.
 Rheumatoid arthritis
Alkylosingspondylitis
 Gout
 Systemic LE
ARTHRITIS: DEFINITION
 Inflammation  of one or more joints.
 A joint is the area where two bones
 meet.

 There are over 100 different types of
 arthritis.
ARTHRITIS: CAUSES
Breakdown    of cartilage
 Joint inflammation, due to;
 1. autoimmune disease (the body's
  immune system mistakenly attacks
  healthy tissue)
 2. Broken bone
 3. General "wear and tear" on joints
Infection, usually by bacteria or virus
ARTHRITIS: SYMPTOMS

 Joint pain
 Joint swelling
 Reduced ability to move the joint
 Redness of the skin around a joint
 Stiffness, especially in the morning
 Warmth around a join
ARTHRITIS: NON-
PHARMACOLOGICAL TREATMENT


    GOAL: to reduce pain, improve
    function, and prevent further joint
    damage.

The    underlying cause cannot
    usually be cured.
ARTHRITIS: NON-
PHARMACOLOGICAL TREATMENT

LIFESTYLE   CHANGES

Lifestyle changes are the
preferred treatment for
osteoarthritis and other types of
joint inflammation.

 Diet and Exercise
ARTHRITIS: NON-
PHARMACOLOGICAL TREATMENT

   Exercise programs may include:

Low-impact   aerobic activity (also
 called endurance exercise)
Range of motion exercises for
 flexibility
Strength training for muscle tone
ARTHRITIS: NON-
PHARMACOLOGICAL TREATMENT

Physical Therapy:
1 Heat or ice compress
2. Splints or orthotics to support
joints and help improve their
position; this is often needed for
rheumatoid arthritis
3. Water therapy / Hydrotherapy
4. Massage
ARTHRITIS: NON-
PHARMACOLOGICAL TREATMENT

 8 to 10 hours of sleep
 Avoid staying in one position for
 too long.
 Avoid positions or movements that
 place extra stress on your sore
 joints.
 Meditation, Yoga, Tai-chi
 Eat your fruits and vegetables
ARTHRITIS: NON-
PHARMACOLOGICAL TREATMENT

Eat foods rich in omega-3 fatty
 acids, such as cold water fish
 (salmon, mackerel, and herring),
 flaxseed, rapeseed (canola) oil,
 soybeans, soybean oil, pumpkin
 seeds, and walnuts.
ARTHRITIS: NON-
PHARMACOLOGICAL TREATMENT

 Change your home to make
 activities easier.
 Example, install grab bars in the
 shower, the tub, and near the toilet.
 Lose the excess weight.
 Apply capsaicin liniment over
 painful joints.
ARTHRITIS: -PHARMACOLOGICAL
TREATMENT

Acetaminophen is usually tried
first. Take up to 4 grams a day (two
arthritis-strength every 8 hours).
Do not take more than the
recommended dose or take the drug
along with a lot of alcohol. Doing so
may damage your your liver.
ARTHRITIS: -PHARMACOLOGICAL
TREATMENT

   Aspirin, Ibuprofen, or Naproxen are
    nonsteroidal anti-inflammatory
    drugs (NSAIDs)

Potential side effects include heart
attack, stroke, stomach
ulcers, bleeding from the digestive
tract, and kidney damage.
ARTHRITIS: -PHARMACOLOGICAL
TREATMENT
Biologics are used for   5. rituximab (Rituxan)
 the treatment of          6. golimumab
 autoimmune arthritis.     (Simponi)
1. etanercept (Enbrel)     7. certolizumab
2. infliximab              (Cimzia)
 (Remicade)                8. tocilizumab
3. adalimumab              (Actemra)
 (Humira)
4. abatacept (Orencia)
ARTHRITIS:-PHARMACOLOGICAL
TREATMENT

 Corticosteroids ("steroids") help
 reduce inflammation. They may be
 injected into painful joints or given
 by mouth.

 Disease-modifyinganti-rheumatic
 drugs (DMARDs) are used to treat
 autoimmune arthritis.
ARTHRITIS:-PHARMACOLOGICAL
TREATMENT

 DMARD’s   include;

 1. methotrexate
 2. gold salts
 3. penicillamine
 4. sulfasalazine
 5. hydroxychloroquine
ARTHRITIS:-PHARMACOLOGICAL
TREATMENT

Immunosuppressants    such as
 azathioprine or
 cyclophosphamide are used to
 treat patients with rheumatoid
 arthritis when other medications
 have not worked.
ARTHRITIS:
SURGICAL TREATMENT

 Arthroplasty   to rebuild the joint
ARTHRITIS:
SURGICAL TREATMENT

 Joint
      Replacement such as, total
 knee joint replacement.
ARTHRITIS: PROGNOSIS
A few arthritis-related disorders
 can be completely cured with
 proper treatment.

Most  forms of arthritis however
 are long-term (chronic)
 conditions.
ARTHRITIS: PROGNOSIS
 Complications of arthritis
 include:

Long-term     (chronic) pain
Disability
Difficulty   performing daily
 activities
ARTHRITIS: PREVENTION
Early  diagnosis and treatment
 can help prevent joint damage. If
 you have a family history of
 arthritis, tell your doctor, even if
 you do not have joint pain.

Avoiding excessive, repeated
 motions may help protect against
 osteoarthritis.
RHEUMATOID ARTHRITIS

 Or   RA, is a form of arthritis that
    causes pain, swelling, stiffness and
    loss of function in the joints.

 It  can affect any joint but is common in
    the wrist and fingers.

    More women than men get
    rheumatoid arthritis. It often starts
    between ages 25 and 55.
LABORATORY EXAMS and
TESTS: ARTHRITIS
 Antinuclear   antibody (ANA)

 Commonly found in the blood of people
 who have lupus, ANAs (abnormal
 antibodies directed against the cells’
 nuclei) can also suggest the presence
 of polymyositis, scleroderma, Sjogren’s
 syndrome, mixed connective tissue
 disease or rheumatoid arthritis.
LABORATORY EXAMS and
TESTS: ARTHRITIS
 Antinuclear   antibody (ANA)

 Tests to detect specific subsets of
 these antibodies can be used to
 confirm the diagnosis of a particular
 disease or form of arthritis.
LABORATORY EXAMS and
TESTS: ARTHRITIS
 Rheumatoid   factor (RF)

 Designed to detect and measure the
 level of an antibody that acts against
 the blood component gamma globulin.

 This test is often positive in people with
 rheumatoid arthritis.
LABORATORY EXAMS and
TESTS: ARTHRITIS
 Uric   acid Measurement

 By measuring the level of uric acid in
 the blood, this test helps doctors
 diagnose gout, a condition that occurs
 when excess uric acid crystallizes and
 forms deposits in the joints and other
 tissues, causing inflammation and
 severe pain.
LABORATORY EXAMS and
TESTS: ARTHRITIS
 HLA tissue typing
 This test, which detects the presence of
 certain genetic markers in the blood,
 can often confirm a diagnosis of
 ankylosingspondylitis (a disease
 involving inflammation of the spine and
 sacroiliac joint) or Reiter’s syndrome (a
 disease involving inflammation of the
 urethra, eyes and joints).
LABORATORY EXAMS and
TESTS: ARTHRITIS
 HLA   tissue typing

 The genetic marker HLA-B27 is almost
 always present in people with either of
 these diseases.
LABORATORY EXAMS and
TESTS: ARTHRITIS
 Erythrocyte   sedimentation rate

  Also called ESR or ―sed rate,‖ this test
  measures how fast red blood cells cling
  together, fall and settle (like sediment)
  in the bottom of a glass tube over the
  course of an hour.
 The higher the rate, the greater the
  amount of inflammation.
LABORATORY EXAMS and
TESTS: ARTHRITIS
 Lyme   Serology

 This test detects an immune response
 to the infectious agent that causes
 Lyme disease and thus can be used to
 confirm a diagnosis of the disease.
LABORATORY EXAMS and
TESTS: ARTHRITIS
 Skin   Biopsy

 Taking small samples of skin and
 examining them under a microscope
 can help doctors diagnose forms of
 arthritis that involve the skin, such as
 lupus, vasculitis (inflammation of the
 blood vessels) and psoriatic arthritis.
LABORATORY EXAMS and
TESTS: ARTHRITIS
 Muscle   biopsy

 By going a little deeper into the tissue
 than with the skin biopsy, the surgeon
 can take a sample of muscle to be
 examined for signs of damage to the
 muscle fibers.

 Findings can confirm a diagnosis of
 polymyositis or vasculitis.
LABORATORY EXAMS and
TESTS: ARTHRITIS
 Joint   fluid tests

 In this procedure, which is similar to drawing
 blood, the doctor inserts a needle into a joint
 space and removes fluid.

 An examination of the fluid may reveal uric
 acid crystals, confirming a diagnosis of gout
 or bacteria, suggesting that the joint
 inflammation is caused by infection.
LABORATORY EXAMS and
TESTS: ARTHRITIS

 Muscle   Enzymes Test ( CPK, Aldolase)

 Such tests can measure the amount of
 muscle damaged as well as how
 effective medication has been in
 reducing the inflammation that caused
 the muscle damage.
RHEUMATOID ARTHRITIS
    An autoimmune disease in which
    the body's immune system attacks
    itself.

 The    pattern of joints affected is
    usually symmetrical, involves the
    hands and other joints and is worse
    in the morning.
RHEUMATOID ARTHRITIS

 Rheumatoid    arthritis is also a
 systemic disease, involving other
 body organs, whereas osteoarthritis
 is limited to the joints.

 Overtime, both forms of arthritis
 can be crippling.
RHEUMATOID ARTHRITIS:
CAUSES

 Causeof RA is unknown. It is an
 autoimmune disease, which means
 the body's immune system
 mistakenly attacks healthy tissue.

 RA
   can occur at any age, but is
 more common in middle age.
 Women get RA more often than
 men.
RHEUMATOID ARTHRITIS:
CAUSES


 Infection,
          genes, and hormone
 changes may be linked to the
 disease.
RHEUMATOID ARTHRITIS:
SYMPTOMS

1. Morning stiffness, which lasts
more than 1 hour, is common.
Joints may feel warm, tender, and
stiff when not used for an hour.

2. Joint pain is often felt on the
same joint on both sides of the
body.
RHEUMATOID ARTHRITIS:
SYMPTOMS

 3. Chest pain when taking a breath (pleurisy)
 4. Dry eyes and mouth (Sjogren syndrome)
 5. Eye burning, itching, and discharge
 6. Nodules under the skin (usually a sign of
   more severe disease)
 7. Numbness, tingling, or burning in the
   hands and feet
 8. Sleep difficulties
RHEUMATOID ARTHRITIS:
TREATMENT

 RA usually requires lifelong
  treatment, including medications,
  physical therapy, exercise,
  education, and possibly surgery.

  Early, aggressive treatment for RA
  can delay joint destruction.
OSTEOARTHRITIS: DEFINITION
 Associated  with the aging process
  and can affect any joint.
 The cartilage of the affected joint is
  gradually worn down, eventually
  causing bone to rub against bone.
 Bony spurs develop on the
  unprotected bones causing pain and
  inflammation.
OSTEOARTHRITIS: DEFINITION
OSTEOARTHRITIS: HANDS
OSTEOARTHRITIS: CAUSES
   Aging.

The water content of the cartilage
 increases and the protein makeup of
 cartilage degenerates.
 Repetitive use of the joints over the
 years causes damage to the cartilage
 that leads to joint pain and swelling.
OSTEOARTHRITIS: CAUSES
   Heredity.

 The genetic basic cause of this
 condition.
OSTEOARTHRITIS: RISK FACTORS
 Older   age
 Sex
 Bone deformities
 Joint injuries
 Obesity
 Sedentary lifestyles
 Diseases, like diabetes,
  hypothyroidism, gout, Paget’s
  disease
 Certain occupations
OSTEOARTHRITIS: SYMPTOMS
 Pain
 Tenderness
 Stiffness
 Loss of flexibility
 Grating sensation
 Bone spurs
GOUT: DEFINITION

 It can cause an attack of
 sudden burning pain, stiffness,
 and swelling in a joint, usually a
 big toe.

These attacks can happen over
 and over unless gout is treated.
GOUT: DEFINITION

Over time, they can
 harm the joints,
 tendons, and other
 tissues.

Gout   is most common in
 men.
GOUT: CAUSES AND RISK FACTORS
 High levels of uric acid in the
 blood, which crytallize in the joints.
 Overweight
 High alcohol consumption
 Diet rich in fish and meat (due to
 purine content)
 Diuretics
GOUT: THE THREE STAGES
 Stage   One: High Blood Acid levels
The uric acid level in the blood may be higher
 than normal, but there are no symptoms of
 gout.
 High uric acid in the blood (hyperuricemia)
 may never progress beyond this stage, and
 symptoms of gout may never develop.
 Some people may have kidney stones before
 having their first attack of gout.
GOUT: THE THREE STAGES
 Stage Two: Episodes of acute gouty
 arthritis separated by periods without
 symptoms.
This stage is also called intercritical or interval
 gout.
 Uric acid crystals begin to form in the joint
 fluid, usually in one joint-most commonly the
 big toe-and the body often responds with a
 sudden inflammatory reaction: a gout attack.
GOUT: THE THREE STAGES
 Stage Two: Episodes of acute gouty
 arthritis separated by periods without
 symptoms.
Although the big toe is the most common site
 for a gout attack, gout may develop in other
 joints, including the knee, ankle, and joints in
 the foot, wrist, and fingers.
 After the gout attack is over, the affected joint
 and surrounding tissues feel normal within
 days until the next attack, which often occurs
 within 2 years
GOUT: THE THREE STAGES
 Stage Two: Episodes of acute gouty
 arthritis separated by periods without
 symptoms.
For many people this period becomes
 progressively shorter as attacks occur
 more often.
 Later attacks may be more severe, last
 longer, and involve more than one joint.
GOUT: THE THREE STAGES
 Stage  Three: Chronic Tophaceous Gout
If gout symptoms have occurred off and
  on without treatment for several years,
  they may become ongoing (chronic)
  and frequently affect more than one
  joint.
  There may no longer be periods of time
  between attacks.
GOUT: THE THREE STAGES
 Stage   Three: Chronic Tophaceous Gout
 By this time, enough uric acid crystals have
 accumulated in the body to form gritty
 nodules called tophi.
 When located just under the surface of the
 skin, these deposits are usually firm and
 movable. The overlying skin may be thin and
 red. Tophi that are very near the skin may
 appear cream-colored or yellow.
GOUT: THE THREE STAGES
 Stage   Three: Chronic Tophaceous Gout
 At first, tophi are usually found on or near the
 elbow, over the fingers and toes, or on the
 outer edge of the ear.
GOUT: THE THREE STAGES
 Stage   Three: Chronic Tophaceous Gout
 Progressive crippling and destruction of
 cartilage and bone is possible.

This stage of gout is uncommon because of
advances in the early treatment of gout.
GOUT: NON-PHARMACOLOGICAL
MANAGEMENT

 Eat
    moderate amounts of a healthy
 mix of foods.

 Avoid regular daily intake of meat,
 seafood, and alcohol (especially
 beer).

 Drink plenty of water and other
 fluids.
RHEUMATIC FEVER: DEFINITION
 An inflammatory disease that
 may develop after an infection
 with group A Streptococcus
 bacteria (such as strep throat or
 scarlet fever).
 The disease can affect the
 heart, joints, skin, and brain.
RHEUMATIC FEVER: CAUSES,
INCIDENCE, RISK FACTORS

 Common worldwide and is
 responsible for many cases of
 damaged heart valves.

Rheumatic   fever mainly affects
 children ages 5 -15, and occurs
 approximately 14-28 days after
 strep throat or scarlet fever.
RHEUMATIC FEVER: SYMPTOMS
 Abdominal pain
 Fever
 Heart (cardiac) problems, which may
  not have symptoms, or may result in
  shortness of breath and chest pain
 Joint pain, arthritis (mainly in the
  knees, elbows, ankles, and wrists)
 Joint swelling; redness or warmth
RHEUMATIC FEVER: SYMPTOMS
   Nosebleeds (epistaxis)
   Skin nodules
   Skin rash (erythemamarginatum)

1. Skin eruption on the trunk and
upper part of the arms or legs
2. Eruptions that look ring-shaped or
snake-like
RHEUMATIC FEVER: SYMPTOMS
 Sydenham    chorea (emotional
 instability, muscle weakness and
 quick, uncoordinated jerky movements
 that mainly affect the face, feet, and
 hands)
RHEUMATIC FEVER: MAJOR
CRITERIAS FOR DIAGNOSIS


1. Arthritis in several large joints
  (polyarthritis)
2. Heart inflammation (carditis)
3. Nodules under the skin (subcutaneous skin
  nodules)
4. Rapid, jerky movements (chorea,
  Sydenham chorea)
5. Skin rash (erythemamarginatum)
RHEUMATIC FEVER: MINOR
CRITERIAS FOR DIAGNOSIS


6. Fever

7. High ESR

8. Joint pain

9. Abnormal EKG
RHEUMATIC FEVER: LABORATORY
EXAMS AND TESTS
Blood test for recurrent strep infection (such as an
 ASO test)
Antistreptolysin O (ASO) titer is a blood test to
 measure antibodies against streptolysin O, a
 substance produced by group A Streptococcus
 bacteria.

   Complete blood count

   Electrocardiogram

   Sedimentation rate (ESR)
RHEUMATIC FEVER: LABORATORY
EXAMS AND TESTS
 Sedimentation   rate (ESR)

Normal Values
Adults (Westergren method):

Men under 50 years old: less than 15 mm/hr
Men over 50 years old: less than 20 mm/hr

Women under 50 years old: less than 20 mm/hr
Women over 50 years old: less than 30 mm/hr
RHEUMATIC FEVER: LABORATORY
EXAMS AND TESTS

Children (Westergren method):

Newborn: 0 to 2 mm/hr

Newborn to puberty: 3 to 13 mm/hr
RHEUMATIC FEVER: TREATMENT
 Low    doses of antibiotics (such as
    penicillin, sulfadiazine, or
    erythromycin) over the long term to
    prevent strep throat from returning.

   Anti-inflammatory (Aspirin or
    Corticosteroids)
RHEUMATIC FEVER: PROGNOSIS
    If rheumatic fever returns, the
    doctor may recommend the patient
    take low-dose antibiotics
    continually, especially during the
    first 3 -5 years after the first episode
    of the disease.

 Heart   complications may be severe,
    particularly if the heart valves are
    involved.
RHEUMATIC FEVER:
COMPLICATIONS
   Arrhythmias

   Damage to heart valves (in particular, mitral
    stenosis and aortic stenosis)

   Endocarditis

   Heart failure

   Pericarditis

   Sydenham chorea
RHEUMATIC FEVER: PREVENTION
The  most important way to
 prevent rheumatic fever is by
 getting quick treatment for
 strep throat and scarlet fever.
NON-INFECTIOUS
TOPICAL
DISEASES

ACNE
(VULGARIS, CYSTIC, ROSACEA)

PSORIASIS
SKIN ANATOMY:
ACNE: DEFINITION
 Common   skin disease that causes
  pimples.
 Pimples form when hair follicles under
  the skin clog up.
 Most pimples form on the face, neck,
  back, chest and shoulders.
 Anyone can get acne, but it is common
  in teenagers and young adults. It is not
  serious, but it can cause scars.
ACNE: BODY PARTS AFFECTED

Acne  typically appears on your
 face, neck, chest, back and
 shoulders, which are the areas
 of the skin with the largest
 number of functional oil glands.
ACNE: CAUSES
Hormonal changes (during puberty
 and pregnancy.

Overproduction    of sebum / oil

Irregular  shedding of dead skin cells
 resulting in irritation of the hair
 follicles of skin

Buildup   of bacteria
ACNE: HOW IT DEVELOPS
ACNE: FACTORS THAT WORSENS IT
 Hormones
Androgens are hormones that
increase in boys and girls during
puberty and cause the sebaceous
glands to enlarge and make more
sebum.
Hormonal changes related to
pregnancy and the use of oral
contraceptives can also affect
sebum production.
ACNE: FACTORS THAT WORSENS IT
 Certain medications
 Drugs containing;
 1. corticosteroids
 2. androgens
 3. lithium

 are known to cause acne.
ACNE: FACTORS THAT WORSENS IT
 Diet
 Studies indicate that certain dietary
 factors, including dairy products
 and carbohydrate-rich foods —
 such as bread, bagels and chips,
 which increase blood sugar — may
 trigger acne.
ACNE: DIFFERENT FORMS
 NON-INFLAMMATORY      LESIONS
1. Comedones (Whiteheads and
Blackheads)
Created when the openings of hair
follicles become clogged and blocked
with oil secretions, dead skin cells
and sometimes bacteria.
ACNE: DIFFERENT FORMS
 NON-INFLAMMATORY       LESIONS
1. Comedones (Whiteheads and
Blackheads)
When comedones are open at the skin
surface, they're called blackheads
because of the dark appearance of the
plugs in the hair follicles.
ACNE: DIFFERENT FORMS
 NON-INFLAMMATORY   LESIONS
1. Comedones (Whiteheads and
Blackheads)
When comedones are closed, they're
called whiteheads — slightly raised,
skin-colored bumps.
ACNE: DIFFERENT FORMS
 INFLAMMATORY      LESIONS
 1. Papules - small raised bumps that
 signal inflammation or infection in the
 hair follicles. Papules may be red and
 tender.
ACNE: DIFFERENT FORMS
 INFLAMMATORY   LESIONS
2. Pustules (pimples) - are red, tender
bumps with white pus at their tips.
ACNE: DIFFERENT FORMS
 INFLAMMATORY     LESIONS
3. Nodules - are large, solid, painful
lumps beneath the surface of the skin.
They're formed by the buildup of
secretions deep within hair follicles.
ACNE: DIFFERENT FORMS
 INFLAMMATORY      LESIONS
 4. Cysts - painful, pus-filled lumps
 beneath the surface of the skin. These
 boil-like infections can cause scars.
ACNE ROSACEA: DEFINITION
A  long-term disease that affects
 the skin and sometimes the eyes.
It causes redness and pimples.
Rosaceais most common in
 women and people with fair skin.
 It usually starts between age 30
 and 60.
ACNE ROSACEA: SYMPTOMS
 Frequent redness (flushing) of the face.
 Most redness is at the center of the
 face (forehead, nose, cheeks, and chin).
 A burning feeling and slight swelling.


 Small   red lines under the skin.
ACNE ROSACEA: SYMPTOMS
 Constant redness along with bumps on
 the skin. Sometimes the bumps have
 pus inside (pimples), but not always.
 Solid bumps on the skin may later
 become painful.

 Inflamed   eyes/eyelids.

 Swollen,   red, large bumpy nose.
ACNE ROSACEA: SYMPTOMS
 Thicker   skin.

 The skin on the
 forehead, chin, cheeks, or other areas
 can become thicker because of
 rosacea.
ACNE ROSACEA: CAUSES
 When  blood vessels expand too
easily, causing flushing.
People who blush a lot may be more
likely to get rosacea.

   Hereditary
ACNE ROSACEA: CAUSES
 Patients’skin with rosacea were to
 have high levels of cathelicidins,
 peptides with antimicrobial and pro-
 inflammatory properties that protect
 the skin against infection.
ACNE ROSACEA: CAUSES

 Levelsof stratum corneumtryptic
 enzyme or SCTE — the enzyme
 responsible for cleaving the inactive
 cathelicidins into their active form —
 were also elevated in people with the
 disease.

 A flaw in the immune system
 contributes to this disease.
ACNE ROSACEA: FACTORS THAT
MAKE IT WORSE
 Heat (including hot baths)
 Heavy exercise

 Sunlight

 Winds

 Very cold temperatures

 Hot or spicy foods and drinks

 Drinking alcohol

 Menopause

 Emotional stress

 Long-term use of steroids on the face
ACNE ROSACEA: TREATMENT
Adapalene    Cream or Gel (Differin)
A moderator of differentiation of
 follicular epithelial
 cells, keratinization, and
 inflammatory processes.
It has both exfoliating and anti-
 inflammatory effects.
ACNE ROSACEA: TREATMENT
 Electro surgery and Laser
 surgery

Improves skin appearance with
less scarring.
ACNE ROSACEA: TREATMENT
 Scraping off the excess skin
 tissue from a swollen, bumpy
 nose.

Application of green-tinted
 foundation or make-up to conceal
 the skin redness.
ACNE: RISK FACTORS
 Teenagers
 Women   and girls, two to seven days
  before their periods
 Pregnant women
 People using certain medications,
  including those containing
  corticosteroids, androgens or
  lithium
ACNE: RISK FACTORS
 Direct skin contact with greasy or oily
  substances, or to certain cosmetics
  applied directly to the skin
 A family history of acne
 Friction or pressure on the skin
  caused by various items, such as
  telephones or cellphones, helmets,
  tight collars and backpacks
ACNE:  NON-PHARMACOLOGICAL
TREATMENTS

 Wash problem areas with a gentle
 cleanser.
 Avoid irritants (greasy
 cosmetics, oily hairstyling
 products, oil-based sunscreens)
 Keep hair away from your face
 Avoid tight-fitting clothes
 Don’t prick or squeeze!
ACNE: PHARMACOLOGICAL
TREATMENTS

   OTC topical medications
    containing salicylic acid, benzoyl
    peroxide, sulfur, resorcinol.

 Prescription   medications such as
    retinoids, adapalene, tazarotene
ACNE: PHARMACOLOGICAL
TREATMENTS

  Antibiotics – for moderate to
  severe acne.
 Isotretinoin – for deep, cystic acne.
 Oral Contraceptives -a combination
  of norgestimate and ethinylestradiol
  (Ortho Tri-Cyclen, Previfem), can
  improve acne in women.
ACNE: COSMETIC / SURGICAL
TREATMENTS

   Laser / Light Therapy

Laser treatment – damages the oil
glands, to produce lesser oil.

Light therapy – targets the bacteria
that causes acne inflammation
ACNE: COSMETIC / SURGICAL
TREATMENTS

   Chemical Peels /
    Microdermabrasion

     Lessen the appearance of fine
    lines, sun damage and minor facial
    scars — are most effective when
    used in combination with other
    acne treatments.
ACNE: COSMETIC / SURGICAL
TREATMENTS

   Acne Scar Treatment
    1. Dermabrasion
    2. Microdermabrasion (such as
    Diamond Peeling)
    3. Soft Tissue (Collagen) Fillers
    4. Chemical Peels
    5. RadioFrequency Treatments
    6. Skin Surgery ( by Punch Excision)
ACNE: PREVENTION
 Wash acne-prone areas only twice a
 day.
 Avoid heavy make-up / foundation.
 Wear loose-fitting clothes.
 Shower after excersizing or after
 doing strenous work.
PSORIASIS
PSORIASIS: DEFINITION
A skin disease that causes scaling and
 inflammation (pain, swelling, heat, and
 redness).

 Skincells grow deep in the skin and
 slowly rise to the surface.
PSORIASIS: DEFINITION

 Thisprocess is called cell turnover,
 and it takes about a month.

 Withpsoriasis, it can happen in just a
 few days because the cells rise too fast
 and pile up on the surface.
PSORIASIS: DEFINITION
A  chronic, autoimmune disease that
  appears on the skin.

 Itoccurs when the immune system
  sends out faulty signals that speed up
  the growth cycle of skin cells.

 Psoriasis   is not contagious.
PSORIASIS: FIVE TYPES
 Plaque   Psoriasis (psoriasis vulgaris)

The most prevalent form of the disease.
 About 80 percent of those who have
 psoriasis have this type.

It is characterized by raised, inflamed, red
   lesions covered by a silvery white scale.
   It is typically found on the elbows, knees,
   scalp and lower back.
PSORIASIS: FIVE TYPES
 Plaque   Psoriasis (psoriasis vulgaris)
PSORIASIS: FIVE TYPES
 Guttate   Psoriasis

Aform of psoriasis that often starts in
 childhood or young adulthood.

 This form of psoriasis appears as small,
 red, individual spots on the skin.

Guttatelesions usually appear on the trunk
 and limbs. These spots are not usually
 as thick as plaque lesions.
PSORIASIS: FIVE TYPES
 Guttate   Psoriasis
PSORIASIS: FIVE TYPES
 Inverse   Psoriasis

Found in the armpits, groin, under the
 breasts, and in other skin folds around
 the genitals and the buttocks.

This type of psoriasis appears as bright-
 red lesions that are smooth and shiny.
 Inverse psoriasis is subject to irritation
 from rubbing and sweating because of
 its location in skin folds and tender
 areas.
PSORIASIS: FIVE TYPES
 Inverse   Psoriasis
PSORIASIS: FIVE TYPES
 Pustular   Psoriasis

 Primarily seen in adults, pustular psoriasis is
 characterized by white blisters of
 noninfectious pus (consisting of white blood
 cells) surrounded by red skin.
PSORIASIS: FIVE TYPES
 Pustular   Psoriasis

 Triggers include irritating topical agents,
 overexposure to UV light, pregnancy,
 systemic steroids, infections, stress and
 sudden withdrawal of systemic medications
 or potent topical steroids.
PSORIASIS: FIVE TYPES
 Erythrodermic   Psoriasis

 An inflammatory form of psoriasis that
  affects most of the body surface.
 It may occur in association with von
  Zumbuschpustular psoriasis.

 The reddening and shedding of the skin are
 often accompanied by severe itching and
 pain, heart rate increase, and fluctuating
 body temperature.
PSORIASIS: FIVE TYPES
 Erythrodermic   Psoriasis

Triggers include;
  a. abrupt withdrawal of a systemic psoriasis
  treatment including cortisone
b. allergic reaction to a drug resulting in the
  Koebnerresponse
c. severe sunburn
d. infection
e. medications such as lithium, anti-malarial
  drugs
f. strong coal tar products.
PSORIASIS: FIVE TYPES
 Erythrodermic   Psoriasis
PSORIASIS: CAUSES
 Stress
 Injury / Trauma to skin – Koeb-
 ner phenomenon
 Medications, such as;
lithium
antimalarials
inderal
quinidine
indomethacin
PSORIASIS: PHARMACOLOGICAL
TREATMENT

 Corticosteroids   – most frequent

 Anthralin,synthetic Vitamin D3, and
 Vitamin A are also used in
 prescription topical treatments to
 control psoriasis lesions.

 OTC topicals containing salicylic
 acid and coal tar.
PSORIASIS: PHARMACOLOGICAL
TREATMENT

   Phototherapy / Light Therapy with
    Psoralen

It involves exposing the skin to
ultraviolet light on a regular basis
and under medical supervision.
 Consistency is the key for the
success of this treatment.
PSORIASIS: PHARMACOLOGICAL
TREATMENT

 Sunlight
  Start with five to 10 minutes of
 noontime sun daily.
 Gradually increase exposure time
 by 30 seconds if the skin tolerates
 it.
To get the most from the sun, all
 affected areas should receive equal
 and adequate exposure.
PSORIASIS: PHARMACOLOGICAL
TREATMENT

   Laser treatments

    1. Excimer Laser – FDA approved for
    chronic, localized psoriasis plaques.
PSORIASIS: PHARMACOLOGICAL
TREATMENT

   Laser treatments

    2. Pulsed Laser - uses a dye and
    different wavelength of light than the
    excimer laser or other UVB-based
    treatments, pulsed dye lasers destroy
    the tiny blood vessels that contribute
    to the formation of psoriasis lesions.
PSORIASIS: PHARMACOLOGICAL
TREATMENT

 Traditional Systemic Medications
Acitretin (Psoriatane)
Cyclosporin
Methotrexate
   Off-lablesystemics
  (hydroxyurea, isotretinoins,
 sulfasalazine, 6-thioguanine,
 mycophenolatemofetil)
PSORIASIS: PHARMACOLOGICAL
TREATMENT
Biologics – moderate to severe
psoriasis
1. T-cell blockers – Amevive (Alefacept),
Raptiva (Efalizumab)

2. Tumor necrosis factor-alpha (TNF-
alpha) blockers - Enbrel (etanercept),
Humira (adalimumab), Remicade
(infliximab) and Simponi (golimumab)
PSORIASIS: PHARMACOLOGICAL
TREATMENT
    Biologics – moderate to severe
    psoriasis

    3. Interleukin 12/23

Stelara(ustekinumab) works by
 selectively targeting the cytokines
 interleukin-12 (IL12) and interleukin 23
 (IL23).
PSORIASIS: NON -
PHARMACOLOGICAL TREATMENT
A. Lifestyle changes
  1. diet – avoid gluten (wheat and red
 meat) and fatty acids.
  2. take fish oil supplements

 EAT WELL….LOSE WEIGHT
 3. Anti-inflammatory Diet
   Heart-Healthy Diet
PSORIASIS: NON -
PHARMACOLOGICAL TREATMENT


B. Mind –Body medicine
 1. meditation
 2. cognitive behavioral therapy
PSORIASIS: NON -
PHARMACOLOGICAL TREATMENT
C. Whole Medical Systems

  1. TCM - acupunture
  2. Ayurveda - Yoga
  3. Naturopathy
  4. Homeopathy

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Immunology intro

  • 1. IMMUNOLOGY: A BACKGROUND Reported by: MA. LOURDES L. MOJARES, R. Ph. CEU Graduate School Ph. D. in Pharmacy
  • 2. IMMUNOLOGY: DEFINITION Study of; 1. the protection of the human body from foreign macromolecules or invading organisms. 2 responses of the human body to them.
  • 3. OUR FIRST LINE OF DEFENSE: These cells include; 1. macrophages 2. neutrophils that engulf foreign organisms and kill them without the need for antibodies.
  • 4. OUR SECOND LINE OF DEFENSE:  The specific or adaptive immune system Which may take days to respond to a primary invasion (that is infection by an organism that has not hitherto been seen).
  • 5. THE IMMUNE SYSTEM 1. Innate or Non-specific Immune System 1. Adaptive or Specific Immune System
  • 6. OVERVIEW OF THE IMMUNE SYSTEM
  • 7. DEVELOPMENT OF THE CELLS OF THE IMMUNE SYSTEM
  • 8. CELLS OF THE IMMUNE SYSTEM
  • 9. MAIN FUNCTION OF THE IMMUNE SYSTEM The ability to distinguish between self and non-self is necessary to protect the organism from invading pathogens and to eliminate modified or altered cells (e.g. malignant cells).
  • 10. MAIN FUNCTION OF THE IMMUNE SYSTEM  It is important to remember that infection with an organism does not necessarily mean diseases, since the immune system in most cases will be able to eliminate the infection before disease occurs.
  • 11. CAUSES OF A DISEASE: When the bolus of infection is  high. The virulence of the microrganism is great. When immunity is compromised.
  • 12. NON – SPECIFIC SPECIFIC IMMUNITY IMMUNITY Response is antigen- Response is antigen- dependent dependent There is immediate There is lag time between maximal response exposure and maximal response Non-antigen specific Antigen - specific Exposure results in no Exposure results in immunologic memory immunologic memory
  • 13. INNATE / NON-SPECIFIC IMMUNITY The elements of the innate (non-specific) immune system include; 1. anatomical barriers 2. secretory molecules 3. cellular components
  • 14. ANATOMICAL BARRIERS TO INFECTIONS 1. MECHANICAL FACTORS The skin acts as our first line of defense against invading organisms. Movement due to cilia or peristalsis helps to keep air passages and the gastrointestinal tract free from microorganisms.
  • 15. ANATOMICAL BARRIERS TO INFECTIONS 1. MECHANICAL FACTORS The flushing action of tears and saliva helps prevent infection of the eyes and mouth. The trapping effect of mucus that lines the respiratory and gastrointestinal tract helps protect the lungs and digestive systems from infection.
  • 16. ANATOMICAL BARRIERS TO INFECTIONS 2. CHEMICAL FACTORS Fatty acids in sweat inhibit the growth of bacteria. Lysozyme and phospholipase found in tears, saliva and nasal secretions can breakdown the cell wall of bacteria and destabilize bacterial membranes.
  • 17. ANATOMICAL BARRIERS TO INFECTIONS 2. CHEMICAL FACTORS The low pH of sweat and gastric secretions prevents growth of bacteria. Defensins (low MW proteins) found in the lung and gastrointestinal tract have antimicrobial activity.
  • 18. ANATOMICAL BARRIERS TO INFECTIONS 3. BIOLOGICAL FACTORS The normal flora of the skin and in the gastrointestinal tract can prevent the colonization of pathogenic bacteria by; 1. secreting toxic substances 2. competing with pathogenic bacteria for nutrients or attachment to cell surfaces.
  • 19. HUMORAL BARRIERS TO INFECTIONS Humoral factors play an important role in inflammation, which is characterized by edema and the recruitment of phagocytic cells. These humoral factors are found in serum or they are formed at the site of infection.
  • 20. HUMORAL BARRIERS TO INFECTIONS 1. Complement System The complement system is the major humoral non-specific defense mechanism.
  • 21. HUMORAL BARRIERS TO INFECTIONS 1. Complement System Once activated complement can lead to; a. increased vascular permeability b. recruitment of phagocytic cells, c. lysis d. opsonization of bacteria
  • 22. HUMORAL BARRIERS TO INFECTIONS 2. Coagulation System Some products of the coagulation because of their ability to; a. increase vascular permeability b. act as chemotactic agents for phagocytic cells.
  • 23. HUMORAL BARRIERS TO INFECTIONS 2. Coagulation System In addition, some of the products of the coagulation system are directly antimicrobial. For example, beta-lysin, a protein produced by platelets during coagulation can lyse many Gram positive bacteria by acting as a cationic detergent.
  • 24. HUMORAL BARRIERS TO INFECTIONS 2. Lactoferrin and Transferrin By binding iron, an essential nutrient for bacteria, these proteins limit bacterial growth.
  • 25. HUMORAL BARRIERS TO INFECTIONS 3. Interferons Interferons are proteins that can limit virus replication in cells. 4. Lysozyme Lysozyme breaks down the cell wall of the bacteria.
  • 26. HUMORAL BARRIERS TO INFECTIONS 5. Interleukin – 1 Il-1 induces fever and the production of acute phase proteins, some of which are antimicrobial because they can opsonize bacteria.
  • 27. PHYSICO-CHEMICAL BARRIERS TO INFECTIONS SYSTEM / ORGAN ACTIVE COMPONENT EFFECTOR MECHANISM SKIN SQUAMOUS CELLS / DESQUAMATION SWEAT FLUSHING ORGANIC ACIDS GI TRACT COLUMNAR CELLS PERISTALSIS LOW pH BILE ACID FLUSHING THIOCYANATE LUNGS TRACHEAL CILIA MUCOSCIALARY ELEVATOR SURFACTANT NASOPHARYNX MUCUS, SALIVA, FLUSHING AND EYE TEARS LYSOZYME
  • 28. PHYSICO-CHEMICAL BARRIERS TO INFECTIONS SYSTEM / ORGAN ACTIVE COMPONENT EFFECTOR MECHANISM CIRCULATION PHAGOCYTIC CELLS PHAGOCYTOSIS AND AND LYPHOID ORGANS INTRACELLULAR KILLING NK CELLS DIRECT AND AND K CELLS ANTIBODY DEPENDENT CYTOLYSIS LAK IL – 2 ACTIVATED CYTOLYSIS
  • 29. PHYSICO-CHEMICAL BARRIERS TO INFECTIONS SYSTEM / ACTIVE COMPONENT EFFECTOR MECHANISM ORGAN SERUM LACTOFERRIN IRON BINDING AND TRANSFERRIN INTERFERONS ANTIVIRAL PROTEINS TNF - ALPHA ANTIVIRAL, PHAGOCYTE ACTIVATION
  • 30. PHYSICO-CHEMICAL BARRIERS TO INFECTIONS SYSTEM / ORGAN ACTIVE COMPONENT EFFECTOR MECHANISM SERUM LYSOZYME PEPTIDOGLYCAN HYDROLYSIS FIBRONECTIN OPSONIZATION AND PHAGOCYTOSIS COMPLEMENT OPZONIZATION, ENHANCED PHAGOCYTOSIS, INFLAMMATION
  • 31. CELLULAR BARRIERS TO INFECTIONS Part of the inflammatory response is the recruitment of polymorphonucleareosinophile s and macrophages to sites of infection.
  • 32. CELLULAR BARRIERS TO INFECTIONS 1. NeutrophilsPolymorphonuclear cells are recruited to the site of infection where they phagocytose invading organisms and kill them intracellularly. In addition, PMNs contribute to collateral tissue damage that occurs during inflammation.
  • 33. CELLULAR BARRIERS TO INFECTIONS 2. Macrophages and Newly Recruited Monocytes Differentiate into macrophages, also function in phagocytosis and intracellular killing of microorganisms.
  • 34. CELLULAR BARRIERS TO INFECTIONS 3. Natural Killers (NK)andLymphokine Activated Killer (LAK) cells NK and LAK cells can nonspecifically kill virus infected and tumor cells. These cells are not part of the inflammatory response but they are important in nonspecific immunity to viral infections and tumor surveillance.
  • 35. NK CELLS AND ITS ACTIVATION
  • 36. CELLULAR BARRIERS TO INFECTIONS 4. Eosinophils They have proteins in granules that are effective in killing certain parasites.
  • 37. KILLER (K) CELLS Killer(K) cells are not a morphologically distinct type of cell. Rather a K cell is any cell that mediates antibody-dependent cellular cytotoxicity (ADCC).
  • 38. KILLER (K) CELLS InADCC antibody acts as a link to bring the K cell and the target cell together to allow killing to occur. K cells have on their surface an Fc receptor for antibody and thus they can recognize, bind and kill target cells coated with antibody.
  • 39. KILLER (K) CELLS Killercells which have Fc receptors include NK, LAK, and macrophages which have an Fc receptor for IgG antibodies and eosinophils which have an Fc receptor for IgE antibodies.
  • 41. PHAGOCYTOSIS AND INTRACELLULAR KILLING A. PHAGOCYTIC CELLS 1. Neutrophiles / Polymorphonuclear (PMN) Cells 1.1 primary or azurophilic granules, which are abundant in young newly formed PMNs, contain cationic proteins and defensins that can kill bacteria, proteolytic enzymes like elastase, and cathepsin G to breakdown proteins, lysozyme to break down bacterial cell walls, and characteristically, myeloperoxidase, which is involved in the generation of bacteriocidal compounds.
  • 42. PHAGOCYTOSIS AND INTRACELLULAR KILLING A. PHAGOCYTIC CELLS 1. Neutrophiles / Polymorphonuclear (PMN) Cells 1. 2 secondary or specific granule These contain lysozyme, NADPH oxidase components, which are involved in the generation of toxic oxygen products, and characteristically lactoferrin, an iron chelating protein and B12- binding protein.
  • 43. PHAGOCYTOSIS AND INTRACELLULAR KILLING A. PHAGOCYTIC CELLS 2. Monocytes / Macrophages Macrophages are phagocytic cells that have a characteristic kidney-shaped nucleus. They can be identified morphologically or by the presence of the CD14 cell surface marker.
  • 44. OXYGEN –INDEPENDENT MECHANISMS OF INTRACELLULAR KILLING EFFECTOR FUNCTION MOLECULE Cationic Proteins Damage to microbial (including cathepsin) membranes Lysozyme Splits mucopeptide in the bacterial cell wall Lactoferrin Deprives proliferating bacteria of iron Proteolytic and Digestion of killed Hydrolytic Enzymes organisms
  • 45. RESPONSE OF PHAGOCYTES TO INFECTION  Circulating PMNs and monocytes respond to danger (SOS) signals generated at the site of an infection.  SOS signals include; 1. N-formyl-methionine containing peptides released by bacteria 2. clotting system peptides 3. complement products 4. cytokines released from tissue macrophages that have encountered bacteria in tissue
  • 46. RESPONSE OF PHAGOCYTES TO INFECTION Some of the SOS signals stimulate endothelial cells near the site of the infection to express cell adhesion molecules such as; 1. ICAM-1 2. selectins which bind to components on the surface of phagocytic cells and cause the phagocytes to adhere to the endothelium.
  • 47. RESPONSE OF PHAGOCYTES TO INFECTION Vasodilators produced at the site of infection cause the junctions between endothelial cells to loosen and the phagocytes then cross the endothelial barrier by “squeezing” between the endothelial cells in a process called “DIAPEDESIS.”
  • 49. RESPONSE OF PHAGOCYTES TO INFECTION Once in the tissue spaces some of the SOS signals attract phagocytes to the infection site by chemotaxis (movement toward an increasing chemical gradient).
  • 50. RESPONSE OF PHAGOCYTES TO INFECTION The SOS signals also activate the phagocytes, which results in; 1. increased phagocytosis 2. intracellular killing of the invading organisms.
  • 51. DISEASES OF THE IMMUNE SYSTEM ALLERGIES: Asthma (Bronchial, Exercise Induced) Dermatitis (Contact and Atopic) Arthritis (Rheumatoid and Reactive)
  • 52. ALLERGY: DEFINITION An immune response or reaction to substances that are usually not harmful. Allergies are pretty common. Both genes and environment play a role.
  • 53. COMMON ALLERGENS:  Drugs  Dust  Food  Insect venom  Mold  Pet and other animal dander  Pollen
  • 54. RARE ALLERGENS:  Hot or Cold Temperatures  Sunlight Friction (clothing /garters, rubbing or stroking the skin)
  • 55. ALLERGY: SYMPTOMS Allergens that one breathes 1. stuffy nose 2. itchy nose and throat 3. mucus production 4. cough 5. wheezing
  • 56. ALLERGY: SYMPTOMS Allergens that touch the eyes 1. itchy 2. watery 3. red 4. swollen
  • 57. ALLERGY: SYMPTOMS Allergens that one gets from foods eaten / drugs taken. 1. nausea and vomiting 2. abdominal pain 3. cramps 4. diarrhea 5. life-threatening reaction
  • 58. ALLERGY TESTING:  Complete Blood Count (CBC) Eosinophil WBC Count An absolute eosinophil count is a blood test that measures the number of white blood cells called eosinophils.
  • 59. ALLERGY TESTING: Eosinophil WBC Count This test may help diagnose: 1. Acute hypereosinophilic syndrome (a rare but sometimes fatal leukemia-like condition) 2. An allergic reaction (can also reveal how severe the reaction is) 3. Early stages of Cushing's disease 4. Infection by a parasite
  • 60. ABNORMALLY HIGH EOSINOPHIL WBC COUNT:  Asthma  Autoimmune diseases  Eczema  Hay fever  Leukemia
  • 61. ABNORMALLY LOW EOSINOPHIL WBC COUNT: CAUSES  Alcohol intoxication  Over production of certain steroids in the body (such as cortisol)
  • 62. ALLERGY: TREATMENT Anaphylaxis - treated with epinephrine  Avoid exposure to ―triggers‖ Anthihistamines
  • 63. ALLERGY: TREATMENT Decongestants – used with caution in patients with; 1. hypertension 2. heart problems, 3. prostate enlargement
  • 64. ALLERGY: TREATMENT Leukotriene inhibitors such as Zafirlukast (Accolate) and (Monteleukast) Singulair. For treatment of indoor and outdoor allergies and asthma.
  • 65. ALLERGY: TREATMENT  Allergy Shots or Immunotherapy
  • 66. ALLERGY: PROGNOSIS  Most allergies can be easily treated with medication.  Some children may outgrow an allergy, especially food allergies. However, once a substance has triggered an allergic reaction, it usually continues to affect the person.
  • 67. ALLERGY: PROGNOSIS  Allergyshots / Immunology are most effective when used to treat people with hay fever symptoms and severe insect sting allergies.  Theyare not used to treat food allergies because of the danger of a severe reaction.
  • 68. ALLERGY: PROGNOSIS  Allergy shots may need years of treatment, but they work in most cases. However, they may cause uncomfortable side effects;  hives and rash  Anaphylaxis (life-threatening allergic reaction)  Breathing problems and discomfort during the allergic reaction  Drowsiness and other side effects of medicines
  • 69. ALLERGY: PREVENTION Breastfeeding babies for 4 to 6 months.  Hygiene Hypothesis Involves exposure of an infant to ―allergens‖ during the first year of life.
  • 70. ALLERGY: SYMPTOMS Allergens that touch the skin 1. rash 2. hives 3. itching 4. peeling
  • 71. DISEASES OF THE IMMUNE SYSTEM ASTHMA: BRONCHIAL EXERCISE -INDUCED
  • 72. ASTHMA: DEFINITION A disorder that causes the airways of the lungs to swell and narrow, leading to; 1. wheezing 2. shortness of breath 3. chest tightness 4. coughing
  • 73. ASTHMA: CAUSES  Inflammation in the airways. When an asthma attack occurs, the muscles surrounding the airways become tight and the lining of the air passages swells.
  • 75. ASTHMA TRIGGERS:  Animals (pet hair or dander)  Dust  Changes in weather (most often cold weather)  Chemicals in the air or in food  Exercise  Mold and Pollen  Respiratory infections, such as the common cold  Strong emotions (stress)  Tobacco smoke
  • 76. ASTHMA DRUG TRIGGERS: Aspirin NSAIDs These drugs act as a deregulator of leukotrienes. Leukotrienes are substances in the body that cause inflammation and many of the symptoms in asthma.
  • 77. ASTHMA: SYMPTOMS Cough with or without sputum (phlegm) production Pulling in of the skin between the ribs when breathing (intercostal retractions) Shortness of breath that gets worse with exercise or activity
  • 78. ASTHMA: SYMPTOMS  Wheezing, which:  Comes in episodes with symptom-free periods in between  May be worse at night or in early morning  May go away on its own  Gets better when using drugs that open the airways (bronchodilators)  Gets worse when breathing in cold air  Gets worse with exercise  Gets worse with heartburn (reflux)  Usually begins suddenly
  • 79. ASTHMA: EMERGENCY SYMPTOMS  Bluish color to the lips and face  Decreased level of alertness, such as severe drowsiness or confusion, during an asthma attack  Extreme difficulty breathing  Rapid pulse  Severe anxiety due to shortness of breath  Sweating
  • 80. ASTHMA: OTHER SYMPTOMS THAT MAY OCCUR  Abnormal breathing pattern -- breathing out takes more than twice as long as breathing in  Breathing temporarily stops  Chest pain  Tightness in the chest
  • 81. ASTHMA: EXAMINATIONS AND TESTS  Skin Prick Test  Placing a small amount of substances that may be causing your symptoms on the skin, most often on the forearm, upper arm, or back.  Then, the skin is pricked so the allergen goes under the skin's surface.
  • 82. ASTHMA: EXAMINATIONS AND TESTS  Skin Prick Test  Thehealth care provider closely watches the skin for swelling and redness or other signs of a reaction. Results are usually seen within 15-20 minutes.  Several allergens can be tested at the same time.
  • 83. ASTHMA: EXAMINATIONS AND TESTS  Intradermal Skin Test:  Injecting a small amount of allergen into the skin.  Then the health care provider watches for a reaction at the site.  This test is more likely to be used to find out if you are allergic to something specific, such as bee venom or penicillin
  • 84. ASTHMA: EXAMINATIONS AND TESTS  Patch Testing  Used to diagnose the cause of skin reactions that occur after the substance touches the skin.  Possible allergens are taped to the skin for 48 hours.  The health care provider will look at the area in 72 - 96 hours.
  • 85. ASTHMA: EXAMINATIONS AND TESTS  ArterialBlood Gas  Performed by collecting a sample of blood through a needle from an artery.  The test is used to 1. evaluate respiratory diseases and conditions that affect the lungs, 2. to determine the effectiveness of oxygen therapy.
  • 86. ASTHMA: EXAMINATIONS AND TESTS  Arterial Blood Gas  3. The acid-base component of the test also gives information on how well the kidneys are functioning.
  • 87. ASTHMA: EXAMINATIONS AND TESTS  Blood Tests Measure; 1. eosinophil count (a type of white blood cell) 2. IgE (a type of immune system protein called an immunoglobulin)
  • 88. ASTHMA: EXAMINATIONS AND TESTS  Chest X-Rays  Lung Function Tests (by Spirometry) Painless study of air volume and flow rate within the lungs. Peak Flow Measurements
  • 90. ASTHMA: GOALS OF TREATMENT Control swelling of the airways. Stay away from the substance triggers.
  • 91. KINDS OF MEDICATION IN TREATING ASTHMA Control drugs to PREVENT attacks Quick-relief (rescue) drugs for use DURING attacks
  • 92. LONG-TERM CONTROL DRUGS FOR ASTHMA  Inhaled  Leokotriene Modifiers Corticosteroids (Singulair, Accolate)  LA – beta agonist  Cromolyn Sodium (Intal) Inhalers  Nedocromil Sodium  Omalizumab (Xolair) (Tilade)  Combination Therapy  Alternate Names (Combination of all fours)
  • 93. QUICK RELIEF (RESCUE) DRUGS for ASTHMA These work fast to control asthma symptoms. You take them when you are coughing, wheezing, having trouble breathing, or having an asthma attack.  Short-Acting Bronchodilators (Proventil, Ventolin,Xopenex)  Oral Steroids (Corticosteroids)
  • 94. ASTHMA: PROGNOSIS  There is no cure for asthma, although symptoms sometimes improve over time. With proper self management and medical treatment, most people with asthma can lead normal lives.
  • 95. ASTHMA ACTION PLAN: A plan for taking asthma medications when your condition is stable. A list of asthma triggers and how to avoid them. How to recognize when your asthma is getting worse, and when to call your doctor or nurse
  • 96. ASTHMA: POSSIBLE COMPLICATIONS  Death  Decreased ability to exercise and take part in other activities  Lack of sleep due to nighttime symptoms  Permanent changes in the function of the lungs  Persistent cough  Trouble breathing that requires breathing assistance (ventilator)
  • 97. ASTHMA: PREVENTION Cover bedding with "allergy- proof" casings to reduce exposure to dust mites. Remove carpets from bedrooms and vacuum regularly. Use only unscented detergents and cleaning materials in the home.
  • 98. ASTHMA: PREVENTION Keep humidity levels low and fix leaks to reduce the growth of organisms such as mold. Keep the house clean and keep food in containers and out of bedrooms -- this helps reduce the possibility of cockroaches, which can trigger asthma attacks in some people.
  • 99. ASTHMA: PREVENTION  If a person is allergic to an animal that cannot be removed from the home, the animal should be kept out of the bedroom. Place filtering material over the heating outlets to trap animal dander.
  • 100. ASTHMA: PREVENTION Eliminate tobacco smoke from the home. This is the single most important thing a family can do to help a child with asthma.
  • 101. DISEASES OF THE IMMUNE SYSTEM CONTACT DERMATITIS ALLERGIC TYPE IRRITANT TYPE
  • 102. CONTACT DERMATITIS: DEFINITION  A condition in which the skin becomes red, sore, or inflamed after direct contact with a substance. Two kinds of contact dermatitis: 1. irritant dermatitis 2. allergic dermatitis
  • 103. IRRITANT CONTACT DERMATITIS: The most common type. It's caused by contact with acids, alkaline materials such as soaps, detergents, fabric softeners, solvents, or other chemicals. The reaction usually looks like a burn.
  • 104. IRRITANTS INCLUDE: Cement Hairdyes Long-term exposure to wet diapers Pesticides or weed killers Rubber gloves Shampoos
  • 105. ALLERGIC CONTACT DERMATITIS: DEFINITION This is caused by exposure to a substance or material to which one have become; 1. extra sensitive 2. allergic
  • 106. COMMON ALLERGENS:  Adhesives, including  Balsam of Peru (used those used for false in many personal eyelashes or toupees products and cosmetics, as well as in many foods and  Antibiotics such as drinks) neomycin rubbed on the surface of the skin  Fabrics and clothing
  • 107. COMMON ALLERGENS:  Fragrances in  Nickel or other metals perfumes, cosmetics, (found in jewelry, soaps, and watch straps, metal moisturizers zips, bra hooks, buttons, pocketknives, lipstick  Nail polish, hair dyes, holders, and powder and permanent wave compacts) solutions
  • 108. COMMON ALLERGENS:  Poison ivy, poison oak, poison sumac, and other plants  Rubber or latex gloves or shoes  Coal Tar Products, Sulfa Ointments, Shaving Lotions, Sun Screens, Lime Oil ( due to photosensitivity)  Air-borne allergens (Ragweed, Insecticides)
  • 109. POISON IVY NICKEL RASH ERYTHEMA
  • 110. CONTACT DERMATITIS: SYMPTOMS  ALLERGIC DERMATITIS  IRRITANT 1. Itching DERMATITIS 1. Burning and Pain 2. Red, Streaky, Patchy Rash 2. Dry, red, rough skin 3. Warm and Tender Skin 3. Cuts and Fissures on Hands 4. Scaly, Crusty, Raw and Thickened Skin
  • 111. LABORATORY EXAMS AND TESTS: DERMATITIS Allergy Testing / Skin Patch Testing It determine which allergen is causing the reaction. Patch testing is used for certain patients who have long-term, repeated contact dermatitis.
  • 112. LABORATORY EXAMS AND TESTS: DERMATITIS Allergy Testing / Skin Patch Testing It requires three office visits and must be done by a health care provider with the experience and skill to interpret the results correctly.
  • 113. LABORATORY EXAMS AND TESTS: DERMATITIS Skin Lesion Biopsy The removal of a piece of skin to diagnose or rule out an illness. Shave biopsy Punch biopsy Excisional biopsy Incisional biopsy
  • 114. SKIN LESION BIOPSY: PROCEDURES
  • 115. LABORATORY EXAMS AND TESTS: DERMATITIS Skin or Nail Culture A laboratory test to look for and identify germs that cause problems with the skin or nails. It is called a mucosal culture if the sample involves the mucous membranes.
  • 116. LABORATORY EXAMS AND TESTS: DERMATITIS Skin or Nail Culture This test may be done to diagnose the cause of: 1. A fungus infection of the skin, finger or toenail 2. A skin rash or sore that appears to be infected 3. A skin ulcer that is not healing
  • 117. DERMATITIS: TREATMENT  Washing with lots of water to remove any traces of the irritant that may remain on the skin. Avoid further exposure to known irritants or allergens.  In some cases, the best treatment is to do nothing to the area.  Emollients or moisturizers help keep the skin moist, and also help skin repair itself. They protect the skin from becoming inflamed again. They are a key part of preventing and treating contact dermatitis.
  • 118. DERMATITIS: TREATMENT  Corticosteroid ointments and creams – reduce inflammation  Tacrolimus ointment or Pimecrolimus cream  Corticosteroid pills or shots  Wet Dressings / Antipruritic lotions
  • 119. DERMATITIS: PROGNOSIS Contact dermatitis usually clears up without complications in 2 or 3 weeks. However, it may return if the substance or material that caused it cannot be found or avoided.
  • 120. DERMATITIS: PROGNOSIS There may be a need to change your job or job habits if the disorder is caused by occupational exposure.
  • 122. RHEUMATOLOGY: DEFINITION  Deals with the diagnosis and therapy of rheumatic diseases.  Deals mainly with clinical problems involving joints, soft tissues, autoimmune diseases, vasculitis, and heritable connective tissue disorders.
  • 123. RHEUMATISM: DEFINITION A non-specific term used to describe any painful disorder affecting the loco-motor system including joints, muscles, connective tissues, soft tissues around the joints and bones
  • 124. RHEUMATISM: DEFINITION Also used to describe rheumatic fever affecting heart valves.  Rheumatoid arthritis Alkylosingspondylitis  Gout  Systemic LE
  • 125. ARTHRITIS: DEFINITION  Inflammation of one or more joints. A joint is the area where two bones meet.  There are over 100 different types of arthritis.
  • 126. ARTHRITIS: CAUSES Breakdown of cartilage  Joint inflammation, due to; 1. autoimmune disease (the body's immune system mistakenly attacks healthy tissue) 2. Broken bone 3. General "wear and tear" on joints Infection, usually by bacteria or virus
  • 127. ARTHRITIS: SYMPTOMS  Joint pain  Joint swelling  Reduced ability to move the joint  Redness of the skin around a joint  Stiffness, especially in the morning  Warmth around a join
  • 128. ARTHRITIS: NON- PHARMACOLOGICAL TREATMENT  GOAL: to reduce pain, improve function, and prevent further joint damage. The underlying cause cannot usually be cured.
  • 129. ARTHRITIS: NON- PHARMACOLOGICAL TREATMENT LIFESTYLE CHANGES Lifestyle changes are the preferred treatment for osteoarthritis and other types of joint inflammation. Diet and Exercise
  • 130. ARTHRITIS: NON- PHARMACOLOGICAL TREATMENT  Exercise programs may include: Low-impact aerobic activity (also called endurance exercise) Range of motion exercises for flexibility Strength training for muscle tone
  • 131. ARTHRITIS: NON- PHARMACOLOGICAL TREATMENT Physical Therapy: 1 Heat or ice compress 2. Splints or orthotics to support joints and help improve their position; this is often needed for rheumatoid arthritis 3. Water therapy / Hydrotherapy 4. Massage
  • 132. ARTHRITIS: NON- PHARMACOLOGICAL TREATMENT  8 to 10 hours of sleep  Avoid staying in one position for too long.  Avoid positions or movements that place extra stress on your sore joints.  Meditation, Yoga, Tai-chi  Eat your fruits and vegetables
  • 133. ARTHRITIS: NON- PHARMACOLOGICAL TREATMENT Eat foods rich in omega-3 fatty acids, such as cold water fish (salmon, mackerel, and herring), flaxseed, rapeseed (canola) oil, soybeans, soybean oil, pumpkin seeds, and walnuts.
  • 134. ARTHRITIS: NON- PHARMACOLOGICAL TREATMENT  Change your home to make activities easier.  Example, install grab bars in the shower, the tub, and near the toilet.  Lose the excess weight.  Apply capsaicin liniment over painful joints.
  • 135. ARTHRITIS: -PHARMACOLOGICAL TREATMENT Acetaminophen is usually tried first. Take up to 4 grams a day (two arthritis-strength every 8 hours). Do not take more than the recommended dose or take the drug along with a lot of alcohol. Doing so may damage your your liver.
  • 136. ARTHRITIS: -PHARMACOLOGICAL TREATMENT  Aspirin, Ibuprofen, or Naproxen are nonsteroidal anti-inflammatory drugs (NSAIDs) Potential side effects include heart attack, stroke, stomach ulcers, bleeding from the digestive tract, and kidney damage.
  • 137. ARTHRITIS: -PHARMACOLOGICAL TREATMENT Biologics are used for 5. rituximab (Rituxan) the treatment of  6. golimumab autoimmune arthritis. (Simponi) 1. etanercept (Enbrel)  7. certolizumab 2. infliximab (Cimzia) (Remicade)  8. tocilizumab 3. adalimumab (Actemra) (Humira) 4. abatacept (Orencia)
  • 138. ARTHRITIS:-PHARMACOLOGICAL TREATMENT  Corticosteroids ("steroids") help reduce inflammation. They may be injected into painful joints or given by mouth.  Disease-modifyinganti-rheumatic drugs (DMARDs) are used to treat autoimmune arthritis.
  • 139. ARTHRITIS:-PHARMACOLOGICAL TREATMENT  DMARD’s include; 1. methotrexate 2. gold salts 3. penicillamine 4. sulfasalazine 5. hydroxychloroquine
  • 140. ARTHRITIS:-PHARMACOLOGICAL TREATMENT Immunosuppressants such as azathioprine or cyclophosphamide are used to treat patients with rheumatoid arthritis when other medications have not worked.
  • 142. ARTHRITIS: SURGICAL TREATMENT  Joint Replacement such as, total knee joint replacement.
  • 143. ARTHRITIS: PROGNOSIS A few arthritis-related disorders can be completely cured with proper treatment. Most forms of arthritis however are long-term (chronic) conditions.
  • 144. ARTHRITIS: PROGNOSIS Complications of arthritis include: Long-term (chronic) pain Disability Difficulty performing daily activities
  • 145. ARTHRITIS: PREVENTION Early diagnosis and treatment can help prevent joint damage. If you have a family history of arthritis, tell your doctor, even if you do not have joint pain. Avoiding excessive, repeated motions may help protect against osteoarthritis.
  • 146. RHEUMATOID ARTHRITIS  Or RA, is a form of arthritis that causes pain, swelling, stiffness and loss of function in the joints.  It can affect any joint but is common in the wrist and fingers.  More women than men get rheumatoid arthritis. It often starts between ages 25 and 55.
  • 147. LABORATORY EXAMS and TESTS: ARTHRITIS  Antinuclear antibody (ANA) Commonly found in the blood of people who have lupus, ANAs (abnormal antibodies directed against the cells’ nuclei) can also suggest the presence of polymyositis, scleroderma, Sjogren’s syndrome, mixed connective tissue disease or rheumatoid arthritis.
  • 148. LABORATORY EXAMS and TESTS: ARTHRITIS  Antinuclear antibody (ANA) Tests to detect specific subsets of these antibodies can be used to confirm the diagnosis of a particular disease or form of arthritis.
  • 149. LABORATORY EXAMS and TESTS: ARTHRITIS  Rheumatoid factor (RF) Designed to detect and measure the level of an antibody that acts against the blood component gamma globulin. This test is often positive in people with rheumatoid arthritis.
  • 150. LABORATORY EXAMS and TESTS: ARTHRITIS  Uric acid Measurement By measuring the level of uric acid in the blood, this test helps doctors diagnose gout, a condition that occurs when excess uric acid crystallizes and forms deposits in the joints and other tissues, causing inflammation and severe pain.
  • 151. LABORATORY EXAMS and TESTS: ARTHRITIS  HLA tissue typing This test, which detects the presence of certain genetic markers in the blood, can often confirm a diagnosis of ankylosingspondylitis (a disease involving inflammation of the spine and sacroiliac joint) or Reiter’s syndrome (a disease involving inflammation of the urethra, eyes and joints).
  • 152. LABORATORY EXAMS and TESTS: ARTHRITIS  HLA tissue typing The genetic marker HLA-B27 is almost always present in people with either of these diseases.
  • 153. LABORATORY EXAMS and TESTS: ARTHRITIS  Erythrocyte sedimentation rate  Also called ESR or ―sed rate,‖ this test measures how fast red blood cells cling together, fall and settle (like sediment) in the bottom of a glass tube over the course of an hour.  The higher the rate, the greater the amount of inflammation.
  • 154. LABORATORY EXAMS and TESTS: ARTHRITIS  Lyme Serology This test detects an immune response to the infectious agent that causes Lyme disease and thus can be used to confirm a diagnosis of the disease.
  • 155. LABORATORY EXAMS and TESTS: ARTHRITIS  Skin Biopsy Taking small samples of skin and examining them under a microscope can help doctors diagnose forms of arthritis that involve the skin, such as lupus, vasculitis (inflammation of the blood vessels) and psoriatic arthritis.
  • 156. LABORATORY EXAMS and TESTS: ARTHRITIS  Muscle biopsy By going a little deeper into the tissue than with the skin biopsy, the surgeon can take a sample of muscle to be examined for signs of damage to the muscle fibers. Findings can confirm a diagnosis of polymyositis or vasculitis.
  • 157. LABORATORY EXAMS and TESTS: ARTHRITIS  Joint fluid tests In this procedure, which is similar to drawing blood, the doctor inserts a needle into a joint space and removes fluid. An examination of the fluid may reveal uric acid crystals, confirming a diagnosis of gout or bacteria, suggesting that the joint inflammation is caused by infection.
  • 158. LABORATORY EXAMS and TESTS: ARTHRITIS  Muscle Enzymes Test ( CPK, Aldolase) Such tests can measure the amount of muscle damaged as well as how effective medication has been in reducing the inflammation that caused the muscle damage.
  • 159. RHEUMATOID ARTHRITIS  An autoimmune disease in which the body's immune system attacks itself.  The pattern of joints affected is usually symmetrical, involves the hands and other joints and is worse in the morning.
  • 160. RHEUMATOID ARTHRITIS  Rheumatoid arthritis is also a systemic disease, involving other body organs, whereas osteoarthritis is limited to the joints.  Overtime, both forms of arthritis can be crippling.
  • 161. RHEUMATOID ARTHRITIS: CAUSES  Causeof RA is unknown. It is an autoimmune disease, which means the body's immune system mistakenly attacks healthy tissue.  RA can occur at any age, but is more common in middle age. Women get RA more often than men.
  • 162. RHEUMATOID ARTHRITIS: CAUSES  Infection, genes, and hormone changes may be linked to the disease.
  • 163. RHEUMATOID ARTHRITIS: SYMPTOMS 1. Morning stiffness, which lasts more than 1 hour, is common. Joints may feel warm, tender, and stiff when not used for an hour. 2. Joint pain is often felt on the same joint on both sides of the body.
  • 164. RHEUMATOID ARTHRITIS: SYMPTOMS 3. Chest pain when taking a breath (pleurisy) 4. Dry eyes and mouth (Sjogren syndrome) 5. Eye burning, itching, and discharge 6. Nodules under the skin (usually a sign of more severe disease) 7. Numbness, tingling, or burning in the hands and feet 8. Sleep difficulties
  • 165. RHEUMATOID ARTHRITIS: TREATMENT RA usually requires lifelong treatment, including medications, physical therapy, exercise, education, and possibly surgery. Early, aggressive treatment for RA can delay joint destruction.
  • 166. OSTEOARTHRITIS: DEFINITION  Associated with the aging process and can affect any joint.  The cartilage of the affected joint is gradually worn down, eventually causing bone to rub against bone.  Bony spurs develop on the unprotected bones causing pain and inflammation.
  • 169. OSTEOARTHRITIS: CAUSES  Aging. The water content of the cartilage increases and the protein makeup of cartilage degenerates. Repetitive use of the joints over the years causes damage to the cartilage that leads to joint pain and swelling.
  • 170. OSTEOARTHRITIS: CAUSES  Heredity. The genetic basic cause of this condition.
  • 171. OSTEOARTHRITIS: RISK FACTORS  Older age  Sex  Bone deformities  Joint injuries  Obesity  Sedentary lifestyles  Diseases, like diabetes, hypothyroidism, gout, Paget’s disease  Certain occupations
  • 172. OSTEOARTHRITIS: SYMPTOMS  Pain  Tenderness  Stiffness  Loss of flexibility  Grating sensation  Bone spurs
  • 173. GOUT: DEFINITION  It can cause an attack of sudden burning pain, stiffness, and swelling in a joint, usually a big toe. These attacks can happen over and over unless gout is treated.
  • 174. GOUT: DEFINITION Over time, they can harm the joints, tendons, and other tissues. Gout is most common in men.
  • 175. GOUT: CAUSES AND RISK FACTORS  High levels of uric acid in the blood, which crytallize in the joints.  Overweight  High alcohol consumption  Diet rich in fish and meat (due to purine content)  Diuretics
  • 176. GOUT: THE THREE STAGES  Stage One: High Blood Acid levels The uric acid level in the blood may be higher than normal, but there are no symptoms of gout. High uric acid in the blood (hyperuricemia) may never progress beyond this stage, and symptoms of gout may never develop. Some people may have kidney stones before having their first attack of gout.
  • 177. GOUT: THE THREE STAGES  Stage Two: Episodes of acute gouty arthritis separated by periods without symptoms. This stage is also called intercritical or interval gout. Uric acid crystals begin to form in the joint fluid, usually in one joint-most commonly the big toe-and the body often responds with a sudden inflammatory reaction: a gout attack.
  • 178. GOUT: THE THREE STAGES  Stage Two: Episodes of acute gouty arthritis separated by periods without symptoms. Although the big toe is the most common site for a gout attack, gout may develop in other joints, including the knee, ankle, and joints in the foot, wrist, and fingers. After the gout attack is over, the affected joint and surrounding tissues feel normal within days until the next attack, which often occurs within 2 years
  • 179. GOUT: THE THREE STAGES  Stage Two: Episodes of acute gouty arthritis separated by periods without symptoms. For many people this period becomes progressively shorter as attacks occur more often. Later attacks may be more severe, last longer, and involve more than one joint.
  • 180. GOUT: THE THREE STAGES  Stage Three: Chronic Tophaceous Gout If gout symptoms have occurred off and on without treatment for several years, they may become ongoing (chronic) and frequently affect more than one joint. There may no longer be periods of time between attacks.
  • 181. GOUT: THE THREE STAGES  Stage Three: Chronic Tophaceous Gout By this time, enough uric acid crystals have accumulated in the body to form gritty nodules called tophi. When located just under the surface of the skin, these deposits are usually firm and movable. The overlying skin may be thin and red. Tophi that are very near the skin may appear cream-colored or yellow.
  • 182. GOUT: THE THREE STAGES  Stage Three: Chronic Tophaceous Gout At first, tophi are usually found on or near the elbow, over the fingers and toes, or on the outer edge of the ear.
  • 183. GOUT: THE THREE STAGES  Stage Three: Chronic Tophaceous Gout Progressive crippling and destruction of cartilage and bone is possible. This stage of gout is uncommon because of advances in the early treatment of gout.
  • 184. GOUT: NON-PHARMACOLOGICAL MANAGEMENT  Eat moderate amounts of a healthy mix of foods.  Avoid regular daily intake of meat, seafood, and alcohol (especially beer).  Drink plenty of water and other fluids.
  • 185. RHEUMATIC FEVER: DEFINITION  An inflammatory disease that may develop after an infection with group A Streptococcus bacteria (such as strep throat or scarlet fever).  The disease can affect the heart, joints, skin, and brain.
  • 186. RHEUMATIC FEVER: CAUSES, INCIDENCE, RISK FACTORS  Common worldwide and is responsible for many cases of damaged heart valves. Rheumatic fever mainly affects children ages 5 -15, and occurs approximately 14-28 days after strep throat or scarlet fever.
  • 187. RHEUMATIC FEVER: SYMPTOMS  Abdominal pain  Fever  Heart (cardiac) problems, which may not have symptoms, or may result in shortness of breath and chest pain  Joint pain, arthritis (mainly in the knees, elbows, ankles, and wrists)  Joint swelling; redness or warmth
  • 188. RHEUMATIC FEVER: SYMPTOMS  Nosebleeds (epistaxis)  Skin nodules  Skin rash (erythemamarginatum) 1. Skin eruption on the trunk and upper part of the arms or legs 2. Eruptions that look ring-shaped or snake-like
  • 189. RHEUMATIC FEVER: SYMPTOMS  Sydenham chorea (emotional instability, muscle weakness and quick, uncoordinated jerky movements that mainly affect the face, feet, and hands)
  • 190. RHEUMATIC FEVER: MAJOR CRITERIAS FOR DIAGNOSIS 1. Arthritis in several large joints (polyarthritis) 2. Heart inflammation (carditis) 3. Nodules under the skin (subcutaneous skin nodules) 4. Rapid, jerky movements (chorea, Sydenham chorea) 5. Skin rash (erythemamarginatum)
  • 191. RHEUMATIC FEVER: MINOR CRITERIAS FOR DIAGNOSIS 6. Fever 7. High ESR 8. Joint pain 9. Abnormal EKG
  • 192. RHEUMATIC FEVER: LABORATORY EXAMS AND TESTS Blood test for recurrent strep infection (such as an ASO test) Antistreptolysin O (ASO) titer is a blood test to measure antibodies against streptolysin O, a substance produced by group A Streptococcus bacteria.  Complete blood count  Electrocardiogram  Sedimentation rate (ESR)
  • 193. RHEUMATIC FEVER: LABORATORY EXAMS AND TESTS  Sedimentation rate (ESR) Normal Values Adults (Westergren method): Men under 50 years old: less than 15 mm/hr Men over 50 years old: less than 20 mm/hr Women under 50 years old: less than 20 mm/hr Women over 50 years old: less than 30 mm/hr
  • 194. RHEUMATIC FEVER: LABORATORY EXAMS AND TESTS Children (Westergren method): Newborn: 0 to 2 mm/hr Newborn to puberty: 3 to 13 mm/hr
  • 195. RHEUMATIC FEVER: TREATMENT  Low doses of antibiotics (such as penicillin, sulfadiazine, or erythromycin) over the long term to prevent strep throat from returning.  Anti-inflammatory (Aspirin or Corticosteroids)
  • 196. RHEUMATIC FEVER: PROGNOSIS  If rheumatic fever returns, the doctor may recommend the patient take low-dose antibiotics continually, especially during the first 3 -5 years after the first episode of the disease.  Heart complications may be severe, particularly if the heart valves are involved.
  • 197. RHEUMATIC FEVER: COMPLICATIONS  Arrhythmias  Damage to heart valves (in particular, mitral stenosis and aortic stenosis)  Endocarditis  Heart failure  Pericarditis  Sydenham chorea
  • 198. RHEUMATIC FEVER: PREVENTION The most important way to prevent rheumatic fever is by getting quick treatment for strep throat and scarlet fever.
  • 201. ACNE: DEFINITION  Common skin disease that causes pimples.  Pimples form when hair follicles under the skin clog up.  Most pimples form on the face, neck, back, chest and shoulders.  Anyone can get acne, but it is common in teenagers and young adults. It is not serious, but it can cause scars.
  • 202. ACNE: BODY PARTS AFFECTED Acne typically appears on your face, neck, chest, back and shoulders, which are the areas of the skin with the largest number of functional oil glands.
  • 203. ACNE: CAUSES Hormonal changes (during puberty and pregnancy. Overproduction of sebum / oil Irregular shedding of dead skin cells resulting in irritation of the hair follicles of skin Buildup of bacteria
  • 204. ACNE: HOW IT DEVELOPS
  • 205. ACNE: FACTORS THAT WORSENS IT  Hormones Androgens are hormones that increase in boys and girls during puberty and cause the sebaceous glands to enlarge and make more sebum. Hormonal changes related to pregnancy and the use of oral contraceptives can also affect sebum production.
  • 206. ACNE: FACTORS THAT WORSENS IT  Certain medications Drugs containing; 1. corticosteroids 2. androgens 3. lithium are known to cause acne.
  • 207. ACNE: FACTORS THAT WORSENS IT  Diet Studies indicate that certain dietary factors, including dairy products and carbohydrate-rich foods — such as bread, bagels and chips, which increase blood sugar — may trigger acne.
  • 208. ACNE: DIFFERENT FORMS  NON-INFLAMMATORY LESIONS 1. Comedones (Whiteheads and Blackheads) Created when the openings of hair follicles become clogged and blocked with oil secretions, dead skin cells and sometimes bacteria.
  • 209. ACNE: DIFFERENT FORMS  NON-INFLAMMATORY LESIONS 1. Comedones (Whiteheads and Blackheads) When comedones are open at the skin surface, they're called blackheads because of the dark appearance of the plugs in the hair follicles.
  • 210. ACNE: DIFFERENT FORMS  NON-INFLAMMATORY LESIONS 1. Comedones (Whiteheads and Blackheads) When comedones are closed, they're called whiteheads — slightly raised, skin-colored bumps.
  • 211. ACNE: DIFFERENT FORMS  INFLAMMATORY LESIONS 1. Papules - small raised bumps that signal inflammation or infection in the hair follicles. Papules may be red and tender.
  • 212. ACNE: DIFFERENT FORMS  INFLAMMATORY LESIONS 2. Pustules (pimples) - are red, tender bumps with white pus at their tips.
  • 213. ACNE: DIFFERENT FORMS  INFLAMMATORY LESIONS 3. Nodules - are large, solid, painful lumps beneath the surface of the skin. They're formed by the buildup of secretions deep within hair follicles.
  • 214. ACNE: DIFFERENT FORMS  INFLAMMATORY LESIONS 4. Cysts - painful, pus-filled lumps beneath the surface of the skin. These boil-like infections can cause scars.
  • 215. ACNE ROSACEA: DEFINITION A long-term disease that affects the skin and sometimes the eyes. It causes redness and pimples. Rosaceais most common in women and people with fair skin. It usually starts between age 30 and 60.
  • 216. ACNE ROSACEA: SYMPTOMS  Frequent redness (flushing) of the face. Most redness is at the center of the face (forehead, nose, cheeks, and chin).  A burning feeling and slight swelling.  Small red lines under the skin.
  • 217. ACNE ROSACEA: SYMPTOMS  Constant redness along with bumps on the skin. Sometimes the bumps have pus inside (pimples), but not always. Solid bumps on the skin may later become painful.  Inflamed eyes/eyelids.  Swollen, red, large bumpy nose.
  • 218. ACNE ROSACEA: SYMPTOMS  Thicker skin. The skin on the forehead, chin, cheeks, or other areas can become thicker because of rosacea.
  • 219. ACNE ROSACEA: CAUSES  When blood vessels expand too easily, causing flushing. People who blush a lot may be more likely to get rosacea.  Hereditary
  • 220. ACNE ROSACEA: CAUSES  Patients’skin with rosacea were to have high levels of cathelicidins, peptides with antimicrobial and pro- inflammatory properties that protect the skin against infection.
  • 221. ACNE ROSACEA: CAUSES  Levelsof stratum corneumtryptic enzyme or SCTE — the enzyme responsible for cleaving the inactive cathelicidins into their active form — were also elevated in people with the disease. A flaw in the immune system contributes to this disease.
  • 222. ACNE ROSACEA: FACTORS THAT MAKE IT WORSE  Heat (including hot baths)  Heavy exercise  Sunlight  Winds  Very cold temperatures  Hot or spicy foods and drinks  Drinking alcohol  Menopause  Emotional stress  Long-term use of steroids on the face
  • 223. ACNE ROSACEA: TREATMENT Adapalene Cream or Gel (Differin) A moderator of differentiation of follicular epithelial cells, keratinization, and inflammatory processes. It has both exfoliating and anti- inflammatory effects.
  • 224. ACNE ROSACEA: TREATMENT  Electro surgery and Laser surgery Improves skin appearance with less scarring.
  • 225. ACNE ROSACEA: TREATMENT  Scraping off the excess skin tissue from a swollen, bumpy nose. Application of green-tinted foundation or make-up to conceal the skin redness.
  • 226. ACNE: RISK FACTORS  Teenagers  Women and girls, two to seven days before their periods  Pregnant women  People using certain medications, including those containing corticosteroids, androgens or lithium
  • 227. ACNE: RISK FACTORS  Direct skin contact with greasy or oily substances, or to certain cosmetics applied directly to the skin  A family history of acne  Friction or pressure on the skin caused by various items, such as telephones or cellphones, helmets, tight collars and backpacks
  • 228. ACNE: NON-PHARMACOLOGICAL TREATMENTS  Wash problem areas with a gentle cleanser.  Avoid irritants (greasy cosmetics, oily hairstyling products, oil-based sunscreens)  Keep hair away from your face  Avoid tight-fitting clothes  Don’t prick or squeeze!
  • 229. ACNE: PHARMACOLOGICAL TREATMENTS  OTC topical medications containing salicylic acid, benzoyl peroxide, sulfur, resorcinol.  Prescription medications such as retinoids, adapalene, tazarotene
  • 230. ACNE: PHARMACOLOGICAL TREATMENTS  Antibiotics – for moderate to severe acne.  Isotretinoin – for deep, cystic acne.  Oral Contraceptives -a combination of norgestimate and ethinylestradiol (Ortho Tri-Cyclen, Previfem), can improve acne in women.
  • 231. ACNE: COSMETIC / SURGICAL TREATMENTS  Laser / Light Therapy Laser treatment – damages the oil glands, to produce lesser oil. Light therapy – targets the bacteria that causes acne inflammation
  • 232. ACNE: COSMETIC / SURGICAL TREATMENTS  Chemical Peels / Microdermabrasion Lessen the appearance of fine lines, sun damage and minor facial scars — are most effective when used in combination with other acne treatments.
  • 233. ACNE: COSMETIC / SURGICAL TREATMENTS  Acne Scar Treatment 1. Dermabrasion 2. Microdermabrasion (such as Diamond Peeling) 3. Soft Tissue (Collagen) Fillers 4. Chemical Peels 5. RadioFrequency Treatments 6. Skin Surgery ( by Punch Excision)
  • 234. ACNE: PREVENTION  Wash acne-prone areas only twice a day.  Avoid heavy make-up / foundation.  Wear loose-fitting clothes.  Shower after excersizing or after doing strenous work.
  • 236. PSORIASIS: DEFINITION A skin disease that causes scaling and inflammation (pain, swelling, heat, and redness).  Skincells grow deep in the skin and slowly rise to the surface.
  • 237. PSORIASIS: DEFINITION  Thisprocess is called cell turnover, and it takes about a month.  Withpsoriasis, it can happen in just a few days because the cells rise too fast and pile up on the surface.
  • 238. PSORIASIS: DEFINITION A chronic, autoimmune disease that appears on the skin.  Itoccurs when the immune system sends out faulty signals that speed up the growth cycle of skin cells.  Psoriasis is not contagious.
  • 239. PSORIASIS: FIVE TYPES  Plaque Psoriasis (psoriasis vulgaris) The most prevalent form of the disease. About 80 percent of those who have psoriasis have this type. It is characterized by raised, inflamed, red lesions covered by a silvery white scale. It is typically found on the elbows, knees, scalp and lower back.
  • 240. PSORIASIS: FIVE TYPES  Plaque Psoriasis (psoriasis vulgaris)
  • 241. PSORIASIS: FIVE TYPES  Guttate Psoriasis Aform of psoriasis that often starts in childhood or young adulthood. This form of psoriasis appears as small, red, individual spots on the skin. Guttatelesions usually appear on the trunk and limbs. These spots are not usually as thick as plaque lesions.
  • 242. PSORIASIS: FIVE TYPES  Guttate Psoriasis
  • 243. PSORIASIS: FIVE TYPES  Inverse Psoriasis Found in the armpits, groin, under the breasts, and in other skin folds around the genitals and the buttocks. This type of psoriasis appears as bright- red lesions that are smooth and shiny. Inverse psoriasis is subject to irritation from rubbing and sweating because of its location in skin folds and tender areas.
  • 244. PSORIASIS: FIVE TYPES  Inverse Psoriasis
  • 245. PSORIASIS: FIVE TYPES  Pustular Psoriasis Primarily seen in adults, pustular psoriasis is characterized by white blisters of noninfectious pus (consisting of white blood cells) surrounded by red skin.
  • 246. PSORIASIS: FIVE TYPES  Pustular Psoriasis Triggers include irritating topical agents, overexposure to UV light, pregnancy, systemic steroids, infections, stress and sudden withdrawal of systemic medications or potent topical steroids.
  • 247. PSORIASIS: FIVE TYPES  Erythrodermic Psoriasis An inflammatory form of psoriasis that affects most of the body surface. It may occur in association with von Zumbuschpustular psoriasis. The reddening and shedding of the skin are often accompanied by severe itching and pain, heart rate increase, and fluctuating body temperature.
  • 248. PSORIASIS: FIVE TYPES  Erythrodermic Psoriasis Triggers include; a. abrupt withdrawal of a systemic psoriasis treatment including cortisone b. allergic reaction to a drug resulting in the Koebnerresponse c. severe sunburn d. infection e. medications such as lithium, anti-malarial drugs f. strong coal tar products.
  • 249. PSORIASIS: FIVE TYPES  Erythrodermic Psoriasis
  • 250. PSORIASIS: CAUSES  Stress  Injury / Trauma to skin – Koeb- ner phenomenon  Medications, such as; lithium antimalarials inderal quinidine indomethacin
  • 251. PSORIASIS: PHARMACOLOGICAL TREATMENT  Corticosteroids – most frequent  Anthralin,synthetic Vitamin D3, and Vitamin A are also used in prescription topical treatments to control psoriasis lesions.  OTC topicals containing salicylic acid and coal tar.
  • 252. PSORIASIS: PHARMACOLOGICAL TREATMENT  Phototherapy / Light Therapy with Psoralen It involves exposing the skin to ultraviolet light on a regular basis and under medical supervision. Consistency is the key for the success of this treatment.
  • 253. PSORIASIS: PHARMACOLOGICAL TREATMENT  Sunlight Start with five to 10 minutes of noontime sun daily. Gradually increase exposure time by 30 seconds if the skin tolerates it. To get the most from the sun, all affected areas should receive equal and adequate exposure.
  • 254. PSORIASIS: PHARMACOLOGICAL TREATMENT  Laser treatments 1. Excimer Laser – FDA approved for chronic, localized psoriasis plaques.
  • 255. PSORIASIS: PHARMACOLOGICAL TREATMENT  Laser treatments 2. Pulsed Laser - uses a dye and different wavelength of light than the excimer laser or other UVB-based treatments, pulsed dye lasers destroy the tiny blood vessels that contribute to the formation of psoriasis lesions.
  • 256. PSORIASIS: PHARMACOLOGICAL TREATMENT  Traditional Systemic Medications Acitretin (Psoriatane) Cyclosporin Methotrexate Off-lablesystemics (hydroxyurea, isotretinoins, sulfasalazine, 6-thioguanine, mycophenolatemofetil)
  • 257. PSORIASIS: PHARMACOLOGICAL TREATMENT Biologics – moderate to severe psoriasis 1. T-cell blockers – Amevive (Alefacept), Raptiva (Efalizumab) 2. Tumor necrosis factor-alpha (TNF- alpha) blockers - Enbrel (etanercept), Humira (adalimumab), Remicade (infliximab) and Simponi (golimumab)
  • 258. PSORIASIS: PHARMACOLOGICAL TREATMENT  Biologics – moderate to severe psoriasis 3. Interleukin 12/23 Stelara(ustekinumab) works by selectively targeting the cytokines interleukin-12 (IL12) and interleukin 23 (IL23).
  • 259. PSORIASIS: NON - PHARMACOLOGICAL TREATMENT A. Lifestyle changes 1. diet – avoid gluten (wheat and red meat) and fatty acids. 2. take fish oil supplements EAT WELL….LOSE WEIGHT 3. Anti-inflammatory Diet Heart-Healthy Diet
  • 260. PSORIASIS: NON - PHARMACOLOGICAL TREATMENT B. Mind –Body medicine 1. meditation 2. cognitive behavioral therapy
  • 261. PSORIASIS: NON - PHARMACOLOGICAL TREATMENT C. Whole Medical Systems 1. TCM - acupunture 2. Ayurveda - Yoga 3. Naturopathy 4. Homeopathy

Notas del editor

  1. These invaders include viruses, bacteria, protozoa or even larger parasites. In addition, we develop immune responses against our own proteins (and other molecules) in autoimmunity and against our own aberrant cells in tumor immunity.
  2. Our first line of defense against foreign organisms are barrier tissues such as the skin that stop the entry of organism into our bodies.If, however, these barrier layers are penetrated, the body contains cells that respond rapidly to the presence of the invader. (READ SLIDE)Immediate challenge also comes from soluble molecules that deprive the invading organism of essential nutrients (such as iron) and from certain molecules that are found on the surfaces of epithelia, in secretions (such as tears and saliva) and in the blood stream. This form of immunity is the innate or non-specific immune system that is continually ready to respond to invasion.
  3. In the specific immune system, we see the production of antibodies (soluble proteins that bind to foreign antigens) and cell-mediated responses in which specific cells recognize foreign pathogens and destroy them.READ SLIDEThe response to a second round of infection is often more rapid than to the primary infection because of the activation of memory B and T cells.
  4. Innate immune system is our first line of defense against invading organisms Adaptive immune system acts as a second line of defense and also affords protection against re-exposure to the same pathogen.
  5. Each of the major subdivisions of the immune system has both cellular and humoral components by which they carry out their protective function (Figure 1). In addition, the innate immune system also has anatomical features that function as barriers to infection. Although these two arms of the immune system have distinct functions, there is interplay between these systems (i.e., components of the innate immune system influence the adaptive immune system and vice versa). Although the innate and adaptive immune systems both function to protect against invading organisms, they differ in a number of ways. The adaptive immune system requires some time to react to an invading organism, whereas the innate immune system includes defenses that, for the most part, are constitutively present and ready to be mobilized upon infection. Second, the adaptive immune system is antigen specific and reacts only with the organism that induced the response. In contrast, the innate system is not antigen specific and reacts equally well to a variety of organisms. Finally, the adaptive immune system demonstrates immunological memory. It “remembers” that it has encountered an invading organism and reacts more rapidly on subsequent exposure to the same organism. In contrast, the innate immune system does not demonstrate immunological memory.
  6. All cells of the immune system have their origin in the bone marrow and they include myeloid (neutrophils, basophils, eosinpophils, macrophages and dendritic cells) and lymphoid (B lymphocyte, T lymphocyte and Natural Killer) cells (Figure 2), which differentiate along distinct pathways (Figure 3). The myeloid progenitor (stem) cell in the bone marrow gives rise to erythrocytes, platelets, neutrophils, monocytes/macrophages and dendritic cells whereas the lymphoid progenitor (stem) cell gives rise to the NK, T cells and B cells. For T cell development the precursor T cells must migrate to the thymus where they undergo differentiation into two distinct types of T cells, the CD4+ T helper cell and the CD8+ pre-cytotoxic T cell. Two types of T helper cells are produced in the thymus the TH1 cells, which help the CD8+ pre-cytotoxic cells to differentiate into cytotoxic T cells, and TH2 cells, which help B cells, differentiate into plasma cells, which secrete antibodies.
  7. The main function of the immune system is self/non-self discriminationREAD SLIDE Since pathogens may replicate intracellularly (viruses and some bacteria and parasites) or extracellularly (most bacteria, fungi and parasites), different components of the immune system have evolved to protect against these different types of pathogens.
  8. Although the immune system, for the most part, has beneficial effects, there can be detrimental effects as well. READ SLIDEDuring inflammation, which is the response to an invading organism, there may be local discomfort and collateral damage to healthy tissue as a result of the toxic products produced by the immune response. In addition, in some cases the immune response can be directed toward self tissues resulting in autoimmune disease.
  9. Among the mechanical anatomical barriers are the skin and internal epithelial layers, the movement of the intestines and the oscillation of broncho-pulmonary cilia. Associated with these protective surfaces are chemical and biological agents.
  10. The epithelial surfaces form a physical barrier that is very impermeable to most infectious agents. Skin….READ SLIDE The desquamation of skin epithelium also helps remove bacteria and other infectious agents that have adhered to the epithelial surfaces
  11. The anatomical barriers are very effective in preventing colonization of tissues by microorganisms. However, when there is damage to tissues the anatomical barriers are breached and infection may occur. Once infectious agents have penetrated tissues, another innate defense mechanism comes into play, namely acute inflammation.READ SLIDE
  12. OPSONIZATION - The process by which bacteria are altered in such a manner that they are more readily and more efficiently engulfed by phagocytes.
  13. Depending on the severity of the tissue injury, the coagulation system may or may not be activated.READ SLIDECHEMOTAXIS - A response of motile cells or organisms in which the direction of movement is affected by the gradient of a diffusible substance. Differs from chemokinesis in that the gradient alters probability of motion in one direction only, rather than rate or frequency of random motion.
  14. These cells are the main line of defense in the non-specific immune system
  15. PMNs are motile phagocytic cells that have lobed nuclei. They can be identified by their characteristic nucleus or by an antigen present on the cell surface called CD66. They contain two kinds of granules the contents of which are involved in the antimicrobial properties of these cells.READ SLIDE
  16. Unlike PMNs they do not contain granules but they have numerous lysosomes which have contents similar to the PNM granules.
  17. DIAPEDESIS –CHEMOTAXIS -
  18. The immune system normally protects the body against harmful substances, such as bacteria and viruses. It also reacts to foreign substances called allergens, which are generally harmless and in most people do not cause a problem.But in a person with allergies, the immune response is oversensitive. When it recognizes an allergen, the immune system launches a response. Chemicals such as histamines are released. These chemicals cause allergy symptoms.
  19. INSECT VENOM: Bedbug bite; Bee sting; Bites - insects, bees, and spiders; Black widow spider bite; Brown recluse bite; Flea bite; Honey bee or hornet sting; Lice bites; Mite bite; Scorpion bite; Spider bite; Wasp sting; Yellow jacket sting
  20. CERTAIN MEDICINES MAY CAUSE AN INCREASE IN EOSINOPHILS:Amphetamines (appetite suppressants)Certain laxatives containing psylliumCertain antibioticsInterferonTranquilizers
  21. Eosinophils become active when you have certain allergic diseases, infections, and other medical conditions.
  22. CUSHING’S DISEASE - Cushing’s disease is a condition in which the pituitary gland releases too much adrenocorticotropic hormone (ACTH). The pituitary gland is an organ of the endocrine system.Cushing's disease is a form of Cushing syndrome.CausesCushing's disease is caused by a tumor or excess growth (hyperplasia) of the pituitary gland. This gland is located at the base of the brain.People with Cushing's disease have too much ACTH. ACTH stimulates the production and release of cortisol, a stress hormone. Too much ACTH means too much cortisol.Cortisol is normally released during stressful situations. It controls the body's use of carbohydrates, fats, and proteins and also helps reduce the immune system's response to swelling (inflammation).NORMAL EOSINOPHIL WBC COUNT: Less than 350 cells per microliter (cells/mcL).
  23. This reduces the amount of air that can pass by.
  24. In sensitive people, asthma symptoms can be triggered by breathing in allergy-causing substances (called allergens or triggers).
  25. ASA-INDUCED ASTHMA ATTACKS ACCOUNTS ONLY TO 2.7%ALTERNATIVE TO ASA ARE THE COXIBS (COX – 2 INHIBITORS) such as CELECOXIB ( but ADR’s include heart attacks and stroke)
  26. Most people with asthma have attacks separated by symptom-free periods. Some people have long-term shortness of breath with episodes of increased shortness of breath. Either wheezing or a cough may be the main symptom.Asthma attacks can last for minutes to days, and can become dangerous if the airflow is severely restricted.
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  34. Blood gases is a measurement of how much oxygen and carbon dioxide is in your blood. It also determines the acidity (pH) of your blood.
  35. There is no special preparation. If you are on oxygen therapy, the oxygen concentration must remain constant for 20 minutes before the test.How the Test Will FeelYou may feel brief cramping or throbbing at the puncture site.
  36. Spirometry is frequently used to evaluate lung function in people with obstructive or restrictive lung diseases such as asthma or cystic fibrosis.PEAK FLOW MEASUREMENTS – a peak flow of 50% to 80% - shows moderate asthma attack. Below 50% shows severe asthma attack.
  37. CORTICOSTEROIDS – PREVENT AIRWAYS FROM SWELLING LA BETA AGONISTS – RELAX THE MUSCLES OF THE AIRWAYS
  38. They also can be used just before exercising to help prevent asthma symptoms that are caused by exercise.Tell your doctor if you are using quick-relief medicines twice a week or more to control your asthma symptoms. Your asthma may not be under control, and your doctor may need to change your dose of daily control drugs.
  39. Smoking outside the house is not enough. Family members and visitors who smoke outside carry smoke residue inside on their clothes and hair -- this can trigger asthma symptoms.
  40. There are several ways to do a skin biopsy. Most procedures can be easily done in outpatient medical offices or your doctor's office.Which procedure you have depends the location, size, and type of lump or sore. You will receive some type of numbing medicine (anesthetic) before any type of skin biopsy.Punch biopsies are most often used for deeper skin spots or sores. Your doctor removes a small round piece of skin (usually the size of a pencil eraser) using a sharp, hollow instrument. If a large sample is taken, the area may be closed with stitches.An excisional biopsy is done to remove the entire lesion. A numbing medicine is injected into the area. Then the entire lump, spot, or sore is removed, going as deep as needed to get the whole area. The area is closed with stitches. Pressure is applied to the area to stop any bleeding. If a large area is biopsied, a skin graft or flap of normal skin may be used to replace the skin that was removed.An incisional biopsy takes a piece of a larger growth for examination. The area is injected with a numbing medicine. A piece of the growth is cut and sent to the lab for examination. You may have stitches, if needed. The rest of the growth can be treated after the diagnosis is made.our doctor may order a skin biopsy if you have signs or symptoms of:Chronic or acute skin rashesNoncancerous (benign) growthsSkin cancerOther skin conditionsRisks may include:InfectionScar (keloids)You will bleed slightly during the procedure. Te
  41. SCRAPE METHODINCISIO METHODPUNCH METHOD
  42. Cartilage normally protects a joint, allowing it to move smoothly. Cartilage also absorbs shock when pressure is placed on the joint, such as when you walk. Without the normal amount of cartilage, the bones rub together, causing pain, swelling (inflammation), and stiffness.
  43. Rheumatoid arthritis is different from osteoarthritis, the common arthritis that often comes with older age. RA can affect body parts besides joints, such as your eyes, mouth and lungs. RA is an autoimmune disease, which means the arthritis results from your immune system attacking your body's own tissues.
  44. Muscles that have been damaged by some rheumatic diseases release certain enzymes into the blood, and these enzymes can be detected through blood tests.
  45. Osteoarthritis (also sometimes referred to as “degenerative joint disease” or “degenerative arthritis”)
  46. Over time, joints may lose their range of motion and may become deformed.
  47. Osteoarthritis is a chronic disease of the joint cartilage and bone, often thought to result from "wear and tear" on a joint, although there are other causes such as congenital defects, trauma and metabolic disorders. Joints appear larger, are stiff and painful and usually feel worse the more they are used throughout the day.
  48. You'll likely be diagnosed with rheumatic fever if you meet two major criteria, or one major and two minor criteria, and have signs that you've had a previous strep infection.
  49. An increased ESR rate may be due to some infections, including:Body-wide (systemic) infectionBone infectionsInfection of the heart or heart valvesRheumatic feverSevere skin infections, such as erysipelasTuberculosis
  50. Stress does not cause acne, but can make it worse.
  51. Acne develops when an oily substance that lubricates your hair and skin (sebum) plugs the hair follicles. Bacteria can trigger inflammation and infection.
  52. These lines show up when blood vessels under the skin get larger. This area of the skin may be somewhat swollen, warm, and red
  53. Researchers funded in part by the National Institute of Arthritis and Musculoskeletal and Skin Diseases December 2007 research.
  54. RETINOIDS etc. - They work by promoting cell turnover and preventing plugging of the hair follicles. A number of topical antibiotics also are available. They work by killing excess skin bacteria.
  55. USE OR ORAL CONTRACEPTIVESThe most serious potential complication is a slightly increased risk of heart disease, high blood pressure and blood clots.
  56. hey may cause temporary, severe redness, scaling and blistering, and long-term discoloration of the skin.
  57. . The word guttate is from the Latin word meaning "drop."
  58. Guttate psoriasis often comes on quite suddenly. A variety of conditions can bring on an attack of guttate psoriasis, including upper respiratory infections, streptococcal throat infections (strep throat), tonsillitis, stress, injury to the skin and the administration of certain drugs including antimalarials and beta-blockers.
  59. . It can be more troublesome in overweight people and those with deep skin folds.
  60. ay be localized to certain areas of the body, such as the hands and feet, or covering most of the body. It begins with the reddening of the skin followed by formation of pustules and scaling.
  61. People experiencing the symptoms of erythrodermic psoriasis flare should go see a doctor immediately. Erythrodermic psoriasis causes protein and fluid loss that can lead to severe illness. The condition may also bring on infection, pneumonia and congestive heart failure. People with severe cases of this condition often require hospitalization.
  62. SKIN INJURY due to vaccinations, sunburns and scratches can triggerKOEBNER PHENOMENON – MINOR SKIN TRAUMAS SUCH AS SCRAPED KNEES, GARDEN SCRAPES AND BUG BITEShe Koebner phenomenon is named after Dr. Heinrich Koebner, a German dermatologist who noticed the phenomenon in the 19th century. A slight scratch won't cause koebnerization, but a cut or bite that damages the dermis (the layer of skin below the surface) may begin to show lesions.
  63. Topical treatments—medications applied to the skin—are usually the first line of defense in treating psoriasis. Topicals slow down or normalize excessive cell reproduction and reduce the inflammation associated with psoriasis.
  64. UVB and UVA TREATMENTS - Present in natural sunlight, UVB is an effective treatment for psoriasis. UVB penetrates the skin and slows the growth of affected skin cells. Psoralen is a light sensitizing medicationDuring UVB treatment, your psoriasis may worsen temporarily before improving. The skin may redden and itch from exposure to the UVB light. To avoid further irritation, the amount of UVB administered may need to be reduced. Occasionally, temporary flares occur with low-level doses of UVB. These reactions tend to resolve with continued treatment.
  65. Remember to wear sunscreen on areas of your skin unaffected by psoriasis.
  66. They are usually used for individuals with moderate to severe psoriasis and psoriatic arthritis. Systemic medications are also used in those who are not responsive or are unable to take topical medications or UV light therapy
  67. Interleukins-12/23 are also cytokines which are thought to promote the inflammation associated with psoriasis.