Plasma dopa is unaffected by diet.
Significant amounts of bound 3,4-dihydroxyphenylalanine (DOPA), when present in dog food, did not affect plasma levels of DOPA or catecholamines in dogs. Thus, plasma DOPA is a useful index of activity of tyrosine hydroxylase, the rate-limiting enzyme in catecholamine synthesis in these animals.
D000818:Animals; D004032:Diet; D004295:Dihydroxyphenylalanine / Q000032:analysis / Q000097:blood*; D004285:Dogs; D005504:Food Analysis; D008297:Male; D051381:Rats
D004295:Dihydroxyphenylalanine