期刊
INTERNATIONAL SYMPOSIUM ON OLFACTION AND TASTE
卷 1170, 期 -, 页码 91-94出版社
WILEY-BLACKWELL
DOI: 10.1111/j.1749-6632.2009.04485.x
关键词
GLP-1; enteroendocrine cells; incretin effect; gustducin; taste receptor
资金
- NATIONAL INSTITUTE OF DIABETES AND DIGESTIVE AND KIDNEY DISEASES [R01DK081421] Funding Source: NIH RePORTER
- NATIONAL INSTITUTE ON DEAFNESS AND OTHER COMMUNICATION DISORDERS [R01DC003055] Funding Source: NIH RePORTER
- NIDCD NIH HHS [R01 DC003055] Funding Source: Medline
- NIDDK NIH HHS [R01 DK081421] Funding Source: Medline
Glucagon-like peptide-1 (GLP-1) is an incretin hormone that underlies the augmented insulin release from the pancreas in response to glucose in the gut lumen more than to intravenous injected glucose (the incretin effect). GLP-1, found in enteroendocrine L cells of the gut, regulates appetite and gut motility and is released from L cells in response to glucose. GLP-1-expressing duodenal L cells also express T1r taste receptors, alpha-gustducin, and many other taste transduction elements. Knockout mice lacking alpha-gustducin or T1r3 have deficiencies in secretion of GLP-1 and in the regulation of plasma levels of insulin and glucose. Gut-expressed taste-signaling elements underlie multiple chemosensory functions of the gut including the incretin effect. Modulating hormone secretion from gut taste cells may provide novel treatments for obesity, diabetes, and malabsorption.
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