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Genetics 7 Metabolic Disorders
Medical Genetics Third Edition
14
Biology
Graduate
02/12/2011

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Term
AKU
Definition
Homogentisic Acid Oxidase, 'Black Urine Disease', HGA is excreted
Term
Hereditary Tyrosemiemia type 2
Definition
Oculocutaneous Tyrosinemia: corneal erosions, thickening of the skin. Tyrosine aminotransferase
Term
Galactosemia (classical)
Definition
galactose-1-phosphate uridyl transferase. Metabolized to galactitol and galactonate.
Term
asymptomatic fructosuria
Definition
hepatic fructokinase
Term
Hereditary fructose intolerance
Definition
poor feeding, failure to thrive, hepatic/renal insufficiency and death. fructose 1,6-bisphosphate aldolase
Term
FBPase Deficiency
Definition
hepatic fructose 1,6-bisphosphatase. impaired gluconeogenesis, hypoglycemia, severe metabolic acidemia
Term
Lactose Intolerance
Definition
Lactase-phlorizin hydrolase (LPH) or lactase
Term
Classical phenylketonuria PKU
Definition
phenylalanine hydroxylase
Term
Non-classical PKU
Definition
defects in the synthesis of tetrahydrobiopterin
Term
Hereditary tyrosinemia type 1
Definition
most common defect and is caused by fumarylacetoacetate hydrolase deficiency. accumulation of fumarylacetoacetate and maleylacetoacetate is hepatotoxic. NTBC treatment.
Term
Hereditary Tyrosinemia Type 3
Definition
reduced 4-hydroxyphenylpyruvate dioxygenase activity. Neurological dysfunction.
Term
Maple Syrup Urine Disease
Definition
branched-chain alpha-ketoacid dehydrogenase. progressiv neurodegeneration and death. therapy with thiamine
Term
MCAD deficiency
Definition
Medium-chain acyl-coenzyme A dehydrogenase: episodic hypoglycemia by fasting. cerebral edema and encephalopathy.
Term
LCHAD Deficiency
Definition
L-3-hydroxyacyl-CoA Dehydrogenase. Fatty acid metabolites
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