Consecutive melatonin circadian rhythms in normal volunteers.
Circadian plasma melatonin secretion patterns were determined in 12 healthy men over 3 consecutive 24-hour periods. The rhythms showed marked intra-individual stability, but pronounced interindividual variation. Plasma melatonin may serve as a reliable biological marker. Plasma melatonin assayed between 23h00 and 01h00 gave a reliable indication of an individual's circadian melatonin rhythm.
Coetzee
J A
JA
Department of Physiology, University of Pretoria.
Theron
J J
JJ
van der Merwe
C A
CA
D000328:Adult; D002940:Circadian Rhythm; D006801:Humans; D008027:Light; D008297:Male; D008550:Melatonin / Q000097:blood*; D012016:Reference Values
D008550:Melatonin