Seasonal variation in urinary excretion of 5-S-cysteinyldopa in healthy Japanese.
The urinary excretion of 5-S-cysteinyldopa was examined in 10 healthy Japanese subjects once a month during a period of one year. The mean values were highest in August (296 micrograms/day) and lowest in February (141 micrograms/day). Individual variations were so great that only a weak difference was observed (p less than 0.05).
D000293:Adolescent; D000328:Adult; D003548:Cysteinyldopa / Q000652:urine*; D004295:Dihydroxyphenylalanine / Q000031:analogs & derivatives* / Q000652:urine; D004298:Dopamine / Q000652:urine; D005260:Female; D006801:Humans; D007564:Japan; D008297:Male; D012016:Reference Values; D012621:Seasons
D003548:Cysteinyldopa; D004295:Dihydroxyphenylalanine; D004298:Dopamine