EFFECT OF PEPTIDE-YY ON GASTRIC, PANCREATIC, AND BILIARY FUNCTION IN HUMANS
EFFECT OF PEPTIDE-YY ON GASTRIC, PANCREATIC, AND BILIARY FUNCTION IN HUMANS
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DOI:
10.1016/0016-5085(85)90442-1
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发表时间:
1985-01-01
期刊:
影响因子:
29.4
通讯作者:
BLOOM, SR
中科院分区:
文献类型:
--
作者:
ADRIAN, TE;SAVAGE, AP;BLOOM, SR
The effect of peptide YY (PYY) on gastric and pancreatico-biliary secretion was studied in humans. Peptide YY was infused into groups of 6 healthy volunteers at doses of 0.59, 0.20 and 0.064 pmol .cntdot. kg-1 .cntdot. min-1. The 2 higher doses caused a significant suppression of gastric acid and pepsin output during background stimulation with pentagastrin. The middle dose of PYY (0.20 pmol .cntdot. kg-1 .cntdot. min-1) that increased plasma PYY levels by 27 .+-. 2 pM caused a 90% .+-. 18% (mean .+-. SEM [standard error of the mean]; P < 0.001) reduction in the incremental gastric volume response to pentagastrin. Similarly this dose of PYY caused a substantial inhibition of the acid (77% .+-. 14%; P < 0.005) and pepsin (96% .+-. 22%; P < 0.01) response to pentagastrin; in 2 subjects, pepsin output fell to below basal levels. In contrast, the highest dose of PYY (0.62 pmol .cntdot. kg-1 .cntdot. min-1) had no significant influence on duodenal juice volume, output of bicarbonate, trypsin or bilirubin during low-dose stimulation with secretin (0.25 pmol .cntdot. kg-1 min-1) and cholecystokinin-8 (0.15 pmol .cntdot. kg-1 .cntdot. min -1. Thus PYY concentrations in the circulation similar to those seen after the ingestion of food cause a marked reduction in gastric secretion. This peptide should therefore be considered as one of the possible candidates for the classical enterogastrone.