Miscellaneous Flashcards
ApoE issue?
Build up of remnants
LPL or ApoC2 deficiency?
Build up of chylomicrons
What are the 4 monoamines? Which are catecholamines? Indoleamine?
Serotonin, dopamine, norepinephrine, epinephrine.
Which AA forms catecholamines? Indolamine?
Tyrosine. Tryptophan
Catecholamine synthesis step one and product?
Tyrosine hydroxylase, DOPA.
Catecholamine step 2 enzyme and product?
DOPA decarboxylase. Makes dopamine.
Catecholamine step 3 enzyme and product?
Dopamine b hydroxylase. Norepinephrine
Catecholamine step 4 enzyme and product? Needs what methyl donor?
Phenylethylnolamine N methyl transferase. Epinephrine. SAM
Serotonin production steps?
Tryptophan hydroxylased and decarboxylased. Made in gut, carried in platelets. Constriction factor
Serotonin breakdown product?
5 HIAA
Dopamine breakdown product? NE and E?
Homovanillic acid. Vanillylmandelic acid
MAO does what?
Degrades monoamines
Carcinoid syndrome symptoms and cause?
Flushing, diarrhea, elevated 5HIAA. Gut tumor raising serotonin
Pheochromocytoma cause and symptoms?
Adrenal medulla cancer. Palpitations, sweating, vanillylmandelic acid up
What does norepinephrine activate?
Thermogenin