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Your gut has taste receptors
Date:8/20/2007

intestinal sugar sensors were unknown. Dr. Margolskee and his colleagues Dr. Josephine M. Egan, Dr. Soraya P. Shirazi-Beechey and Dr. Zaza Kokrashvili reasoned that the sugar sensors of the tongues taste buds might also be there in the gut. Sweet taste in the tongue depends on the taste receptor T1R3 and the taste G protein gustducin.

The small intestine is the major site where dietary sugars are absorbed into the body to provide energy, and maintain normal metabolism and homeostasis. If glucose is absorbed in excess obesity may occur. T1R3 and gustducin, critical to sweet taste in the tongue, are also expressed in specialized taste cells of the gut where they sense glucose within the intestine.

Carbohydrate ingested from meals & beverages breaks down into glucose, which stimulates the sweet-sensing proteins in these gut taste cells. Activating the sweetsensing proteins of the gut taste cells promotes secretion of glucagon-like peptide-1 (GLP-1), an intestinal hormone that plays a key role in promoting insulin secretion and regulating appetite.


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