title: Increased plasma cyclic AMP concentrations in fasting man.
abstract: Plasma concentrations of adenosine 3', 5' monophosphate (cyclic AMP), free fatty acids (FFA), glycerol and glucose were measured after 24, 48 and 72 h fasting in healthy male students. There was a marked rise in plasma concentrations of cyclic AMP, FFA and glycerol from 24 to 48 h fasting with no further changes from 48 to 72 h fasting. Plasma glucose concentrations fell. After 72 h fasting, inhibition of adipose tissue lipolysis with a nicotinic acid analogue effected no significant change in plasma cyclic AMP concentrations, indicating that the elevated plasma nucleotide concentrations during fasting were not related to stimulation of lipolysis.
mesh_terms: D000328:Adult; D001786:Blood Glucose / Q000032:analysis; D000242:Cyclic AMP / Q000097:blood*; D005215:Fasting; D005230:Fatty Acids, Nonesterified / Q000097:blood; D005990:Glycerol / Q000097:blood; D006801:Humans; D008297:Male; D009539:Nicotinic Acids / Q000494:pharmacology
chemical_list: D001786:Blood Glucose; D005230:Fatty Acids, Nonesterified; D009539:Nicotinic Acids; D000242:Cyclic AMP; D005990:Glycerol