Role of Intestinal Bitter Sensing in Enteroendocrine Hormone Secretion and Metabolic Control

The gastrointestinal tract stores ingested nutrients in the stomach which are then delivered to the small intestine at a controlled rate to optimize their digestion and absorption. The interaction of nutrients with the small and large intestine generates feedback that slows gastric emptying, induces...

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Main Authors: Cong Xie, Xuyi Wang, Richard L. Young, Michael Horowitz, Christopher K. Rayner, Tongzhi Wu
Format: Article
Language:English
Published: Frontiers Media S.A. 2018-09-01
Series:Frontiers in Endocrinology
Subjects:
Online Access:https://www.frontiersin.org/article/10.3389/fendo.2018.00576/full
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author Cong Xie
Xuyi Wang
Xuyi Wang
Richard L. Young
Richard L. Young
Michael Horowitz
Christopher K. Rayner
Tongzhi Wu
Tongzhi Wu
author_facet Cong Xie
Xuyi Wang
Xuyi Wang
Richard L. Young
Richard L. Young
Michael Horowitz
Christopher K. Rayner
Tongzhi Wu
Tongzhi Wu
author_sort Cong Xie
collection DOAJ
description The gastrointestinal tract stores ingested nutrients in the stomach which are then delivered to the small intestine at a controlled rate to optimize their digestion and absorption. The interaction of nutrients with the small and large intestine generates feedback that slows gastric emptying, induces satiation, and reduces postprandial glycemic excursions. The mechanisms underlying these nutrient-gut interactions are complex; it has only recently been appreciated that the gut has the capacity to detect intraluminal contents in much the same way as the tongue, via activation of specific G-protein-coupled receptors, and that ensuing signaling mechanisms modulate the release of an array of gut hormones that influence gastrointestinal motility, appetite and glycemia. Interestingly, evidence from preclinical models supports a functional link between intestinal bitter taste receptor (BTRs) and gastrointestinal hormone secretion, and the outcomes of recent studies indicate that stimulation of intestinal BTRs may be used to modulate gastrointestinal function, to diminish energy intake and limit postprandial blood glucose excursions in humans. This review summarizes current evidence about the expression and function of intestinal BTRs in relation to enteroendocrine hormone release and discusses the clinical implications of this pathway for the management of obesity and type 2 diabetes.
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spelling doaj.art-51fb00b8f31549239136d0c6dbfca5892022-12-21T23:52:27ZengFrontiers Media S.A.Frontiers in Endocrinology1664-23922018-09-01910.3389/fendo.2018.00576410918Role of Intestinal Bitter Sensing in Enteroendocrine Hormone Secretion and Metabolic ControlCong Xie0Xuyi Wang1Xuyi Wang2Richard L. Young3Richard L. Young4Michael Horowitz5Christopher K. Rayner6Tongzhi Wu7Tongzhi Wu8Centre of Research Excellence in Translating Nutritional Science to Good Health, The University of Adelaide, Adelaide, SA, AustraliaCentre of Research Excellence in Translating Nutritional Science to Good Health, The University of Adelaide, Adelaide, SA, AustraliaInstitute of Diabetes, School of Medicine, Southeast University, Nanjing, ChinaCentre of Research Excellence in Translating Nutritional Science to Good Health, The University of Adelaide, Adelaide, SA, AustraliaNutrition and Metabolism, South Australian Health and Medical Research Institute, Adelaide, SA, AustraliaCentre of Research Excellence in Translating Nutritional Science to Good Health, The University of Adelaide, Adelaide, SA, AustraliaCentre of Research Excellence in Translating Nutritional Science to Good Health, The University of Adelaide, Adelaide, SA, AustraliaCentre of Research Excellence in Translating Nutritional Science to Good Health, The University of Adelaide, Adelaide, SA, AustraliaInstitute of Diabetes, School of Medicine, Southeast University, Nanjing, ChinaThe gastrointestinal tract stores ingested nutrients in the stomach which are then delivered to the small intestine at a controlled rate to optimize their digestion and absorption. The interaction of nutrients with the small and large intestine generates feedback that slows gastric emptying, induces satiation, and reduces postprandial glycemic excursions. The mechanisms underlying these nutrient-gut interactions are complex; it has only recently been appreciated that the gut has the capacity to detect intraluminal contents in much the same way as the tongue, via activation of specific G-protein-coupled receptors, and that ensuing signaling mechanisms modulate the release of an array of gut hormones that influence gastrointestinal motility, appetite and glycemia. Interestingly, evidence from preclinical models supports a functional link between intestinal bitter taste receptor (BTRs) and gastrointestinal hormone secretion, and the outcomes of recent studies indicate that stimulation of intestinal BTRs may be used to modulate gastrointestinal function, to diminish energy intake and limit postprandial blood glucose excursions in humans. This review summarizes current evidence about the expression and function of intestinal BTRs in relation to enteroendocrine hormone release and discusses the clinical implications of this pathway for the management of obesity and type 2 diabetes.https://www.frontiersin.org/article/10.3389/fendo.2018.00576/fullbitter taste receptorsgut hormonesenteroendocrine cellsenergy intakeblood glucoseobesity
spellingShingle Cong Xie
Xuyi Wang
Xuyi Wang
Richard L. Young
Richard L. Young
Michael Horowitz
Christopher K. Rayner
Tongzhi Wu
Tongzhi Wu
Role of Intestinal Bitter Sensing in Enteroendocrine Hormone Secretion and Metabolic Control
Frontiers in Endocrinology
bitter taste receptors
gut hormones
enteroendocrine cells
energy intake
blood glucose
obesity
title Role of Intestinal Bitter Sensing in Enteroendocrine Hormone Secretion and Metabolic Control
title_full Role of Intestinal Bitter Sensing in Enteroendocrine Hormone Secretion and Metabolic Control
title_fullStr Role of Intestinal Bitter Sensing in Enteroendocrine Hormone Secretion and Metabolic Control
title_full_unstemmed Role of Intestinal Bitter Sensing in Enteroendocrine Hormone Secretion and Metabolic Control
title_short Role of Intestinal Bitter Sensing in Enteroendocrine Hormone Secretion and Metabolic Control
title_sort role of intestinal bitter sensing in enteroendocrine hormone secretion and metabolic control
topic bitter taste receptors
gut hormones
enteroendocrine cells
energy intake
blood glucose
obesity
url https://www.frontiersin.org/article/10.3389/fendo.2018.00576/full
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