Fat in the intestine as a regulator of appetite - role of CCK

被引:89
作者
Beglinger, C [1 ]
Degen, L [1 ]
机构
[1] Univ Basel Hosp, Dept Gastroenterol, CH-4031 Basel, Switzerland
关键词
cholecystokinin; satiety; food intake;
D O I
10.1016/j.physbeh.2004.07.031
中图分类号
B84 [心理学];
学科分类号
04 ; 0402 ;
摘要
The present review summarizes the appetite-suppressing effects of intestinal fat in the regulation of food intake in humans, with a special focus on the role of cholecystokinin (CCK). Current evidence supports a role for intestinal fat (especially long-chain free fatty acids) acting via the peptide CCK as a physiological satiety pathway. The regulation of satiety is, however, complex and it is not surprising that multiple control systems exist. It is interesting to note that nutrients, such as hydrolysis products of fat in the small intestine, stimulate the release of satiety peptides, such as CCK or PYY, that serve as satiety signals. CCK, released from the gastrointestinal tract by the local action of digested food, exerts various functions: stimulation of gallbladder contraction and exocrine pancreatic secretion, inhibition of gastric emptying, and inhibition of appetite. CCK functions therefore (1) as a positive feedback signal to stimulate digestive processes and (2) as negative feedback signal to limit the amount of food consumed during an individual meal. (C) 2004 Elsevier Inc. All rights reserved.
引用
收藏
页码:617 / 621
页数:5
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