title: Effect of cytidine diphosphate choline on growth hormone and prolactin secretion in man.
abstract: The effect of intravenous infusion of cytidine diphosphate choline (CDP-choline) on the serum levels of growth hormone (GH) and prolactin (PRL) was studied in six normal adult male subjects. Serum GH levels increased and reached a maximum at 60--90 min after the initiation of infusion in all subjects examined. The mean peak value of GH in six subjects was 10.0 +/- 2.1 (mean +/- SE) ng/ml, which was signigicantly higher than the basal level (p less than 0.01). In four subjects, serum PRL levels decreased from 10--24 ng/ml to less than 7.2 ng/ml at 60--120 min, while in the other two no significant change was observed. These results indicate that CDP-choline affects GH and PRL secretion from the anterior pituitary.
mesh_terms: D000293:Adolescent; D000328:Adult; D002794:Choline / Q000031:analogs & derivatives*; D003566:Cytidine Diphosphate Choline / Q000494:pharmacology*; D013006:Growth Hormone / Q000097:blood*; D006801:Humans; D008297:Male; D011388:Prolactin / Q000097:blood*
chemical_list: D003566:Cytidine Diphosphate Choline; D011388:Prolactin; D013006:Growth Hormone; D002794:Choline