title: Lack of a diurnal plasma adenosine 3',5'-monophosphate rhythm.
abstract: Plasma cAMP levels were measured using a protein-binding radioassay in nine healthy volunteer subjects over a period of 24 h under standardized conditions and also after an hour of orthostatism. No circadian variations of cAMP in plasma were observed. After orthostatism, however, there was a significant rise in cAMP concentrations.
mesh_terms: D000293:Adolescent; D000328:Adult; D002940:Circadian Rhythm; D000242:Cyclic AMP / Q000097:blood*; D005260:Female; D006801:Humans; D008297:Male; D011187:Posture
chemical_list: D000242:Cyclic AMP