Join live classes, download study aids, sell your documents, join or host your own classes online, get tutoring, tutor students, take practices tests and more at Examville.com
8. RECIPROCAL REGULATION OF GLYCOLYSIS & GLUCONEOGENESIS Glucose Fructose-6-phosphate Fructose-1,6-bisphosphate PEP Pyruvate Oxaloacetate PFK F-1,6-BPase Several steps PK PEP carboxykinase Pyruvate carboxylase GLUCONEOGENESIS F-2,6-BP + AMP + ATP - Citrate - H + - F-2,6-BP - AMP - Citrate + F-1,6-BP + ATP - Alanine - AcetylCoA + ADP - ADP -
9.
10.
11.
12.
13.
14.
15.
16. GLYCOGEN STORAGE DISEASE TYPE DEFECTIVE ENZYME ORGAN AFFECTED GLYCOGEN IN AFFECTED ORGAN CLINICAL FEATURES I (Von Gierke) Glucose-6-phosphatase Liver & kidney Increased amount; normal structure Hepatomegaly, failure to thrive, hypoglycemia, ketosis, hyperuricemia, hyperlipidemia II (Pompe dse) α -1,4 glucosidase All organs Massive increase in amount; normal structure Cardiorespiratory failure causes death usually before age 2 III (Cori dse) Amylo-1,6-glucosidase (debranching) Muscle & liver Increased amount; short outer branches Like type 1 but milder IV (Andersen dse) Branching enzyme ( α -1,4 & 1,6) Liver & spleen Normal amount; very long outer branches Progressive cirrhosis of the liver; liver failure causes death before age 2 V (McArdle dse) Phosphorylase muscle Moderately increased amount; normal structure Limited ability to perform strenuous exercise because of painful muscle cramps. Otherwise patient is normal or well-developed. VI (Hers dse) Phosphorylase liver Increased amount Like type 1 but milder VII Phosphofructokinase muscle Increased amount; normal structure Like type V VIII Phosphorylase kinase liver Increased amount; normal structure Mild liver enlargement. Mild hypoglycemia