Metabolism Flashcards
Disorders presenting as hypoglycemia
Medium-chain and long chain fatty acid oxidation defects
Glycogen storage disease
Ketone utilization
Galactosemia
Disorders presenting as encephalopathy
Propionic acidemia, methymalonic acidemia,other organic acidemias
Msud
Pku
Urea cycle defect
Deficiency in pku
Tyrosine
Toxic metabolite in pku
Phenylalanine
Toxic metabolite in msud
Leucine
In PKU there is Impairment of ____ metabolism leading to ___ deficiency
Tryptophan
serotonin
accumulation of glycogen is stimulated by
insulin
glucose 1-phosphate is converted to glucose 6-phosphate in the
Liver and kidneys
glycogen storage diseases are characterized by
hypoglycemia
hepatomegaly
Diseases that predominantly affect the liver and have a direct influence on blood glucose
types I, VI, and VIII
von gierke 1
hers 6
Diseases that predominantly involve muscles and affect the ability to do anaerobic work
types V and VII
mcArdle 5
tarui 7
Diseases that can affect the liver and muscles and directly influence blood glucose and muscle metabolism
type III
forbes 3
Diseases that affect various tissues but have no direct effect on blood glucose or on the ability to do anaerobic work
types II and IV
pompe 2
anderson 4
von gierke affected enzyme
glucose 6 phosphatase
von gierke affected organs
liver
kidney
GI
platelet
pompe affected enzyme
lysosomal A glucosidase
pompe affected organs
all
striated muscle
nerves
deficiency in galactosemia
galactose 1 phosphate uridyltransferase
autosomal recessive neonate with: liver failure (hyperbil, coagulopathy, hypoglycemia) renal tubular dysfxn (acidosis, aminociduria), cataract
galactosemia
infants with galactosemia at risk for
e coli sepsis
acid base disorder in galactosemia
NAGMA hyperchloremic metabolic acidosis
classic pku
phenylalanine unable to form/hydroxylation tyrosine
enzyme deficient in tyrosinemia I
fumarylacetoacetate hydrolase
enzyme deficient in homocystinuria
cystathione b synthase
autosomal recessive dislocated ocular lens long slender extremities malar flushing livedo reticularis arachnodactyly scoliosus pectus mental retardation psych problem thromboses
homocystinuria
tx of homocystinuria
pyridoxine
plus folate
methionine restriction
cystine supplementation
branched chain amino acids involved in msud
leucine
isoleucine
valine
ornithine carbamoyltransferase deficiency results in low
low citrulline and arginine
ammonia can be eliminated by
hemodialysis (NOT peritoneal)
sodium benzoate
sodium phenylacetate
pellagra like symptoms
amino acid in urine
hartnup
treatment of hartnup
add tryptophan