title: Plasma concentrations of the cyclic nucleotides, adenosine 3',5'-monophosphate and guanosine 3'.5'-monophosphate, in healthy adults treated with theophylline.
abstract: Plasma concentrations of cyclic adenosine monophosphate and cyclic guanosine monophosphate were measured in 10 health adults before, during and after periods of theophylline administration. Cyclic adenosine monophosphate concentrations did not change significantly, but cyclic guanosine monophosphate concentrations decreased by 29% on average when theophylline was administered. The change in cyclic guanosine monophosphate was not correlated to the plasma concentration of theophylline in the range studied.
mesh_terms: D000318:Adrenergic beta-Agonists / Q000494:pharmacology; D000328:Adult; D000242:Cyclic AMP / Q000097:blood*; D006152:Cyclic GMP / Q000097:blood*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D013806:Theophylline / Q000494:pharmacology*
chemical_list: D000318:Adrenergic beta-Agonists; D013806:Theophylline; D000242:Cyclic AMP; D006152:Cyclic GMP