Maas MI, Hopman WP, Katan MB, Jansen JB. Release of peptide YY and inhibition of gastric acid secretion by long-chain and medium-chain triglycerides but not by sucrose polyester in men.
Eur J Clin Invest 1998;
28:123-30. [PMID:
9541126 DOI:
10.1046/j.1365-2362.1998.00255.x]
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Abstract
METHODS
In the present study, we have investigated the effects of intraduodenal perfusion of long-chain and medium-chain triglycerides and of sucrose polyester on the release of peptide YY in healthy men.
RESULTS
Perfusion of medium-chain triglycerides (180 mmol fatty acids) increased the plasma concentration of peptide YY from 7.9 pmol L(-1) (SEM 0.2, n=8) to 10.7 pmol L(-1) (SEM 0.5, n=8), whereas perfusion of long-chain triglycerides (180 mmol fatty acids) had a significantly greater effect, increasing peptide YY concentration from 8 6 pmol L(-1) (SEM 0.2, n=8) to 18.9 pmol L(-1) (SEM 2.4, n=8, P < 0.008). A smaller quantity of long-chain triglycerides (90 mmol fatty acids) increased plasma concentration of peptide YY from 7.4 pmol L(-1) (SEM 0.4, n=8) to 13.3 pmol L(-1) (SEM 1.5, n=8), whereas sucrose polyester (90 mmol fatty acids) did not change peptide YY concentration. In a previous study, we investigated gastrin-stimulated gastric acid output in response to these treatments. The correlation between increases in peptide YY in response to all treatments and the decrease in acid output was r=0.72 (n=48, P < 0.0001). These results show that both long-chain and medium-chain triglycerides, but not sucrose polyester, stimulate the release of peptide YY.
CONCLUSION
We speculate that peptide YY may play an important role in the inhibition of gastrin-stimulated gastric acid secretion by long-chain and medium-chain triglycerides.
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