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https://hdl.handle.net/2440/42236
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Type: | Journal article |
Title: | Modulation by high-fat diets of gastrointestinal function and hormones associated with the regulation of energy intake: implications for the pathophysiology of obesity |
Author: | Little, T. Horowitz, M. Feinle-Bisset, C. |
Citation: | American Journal of Clinical Nutrition, 2007; 86(3):531-541 |
Publisher: | Amer Soc Clinical Nutrition |
Issue Date: | 2007 |
ISSN: | 0002-9165 1938-3207 |
Statement of Responsibility: | Tanya J Little, Michael Horowitz and Christine Feinle-Bisset |
Abstract: | The presence of fat in the small intestine slows gastric emptying, stimulates the release of many gastrointestinal hormones, and suppresses appetite and energy intake as a result of the digestion of fats into free fatty acids; the effects of free fatty acids are, in turn, dependent on their chain length. Given these effects of fat, it is paradoxical that high dietary fat intakes have been linked to increased energy intake and body weight and are considered to play a significant role in the pathogenesis of obesity. However, increasing evidence indicates that a chronic increase in dietary fat is associated with an attenuation of the feedback signals arising from the small intestine induced by fat, with a consequent relative acceleration of gastric emptying, modulation of gastrointestinal hormone secretion, and attenuation of the suppression of energy intake. This review addresses the gastrointestinal factors involved in the regulation of appetite and energy intake, with a particular focus on 1) the gastrointestinal mechanisms triggered by small intestinal fat that modulate energy intake, 2) the potential role of a high dietary fat intake in the development of obesity, and 3) implications for the prevention and management of obesity. |
Keywords: | Gastrointestinal Tract Intestine, Small Humans Obesity Gastrointestinal Hormones Dietary Fats Fatty Acids, Nonesterified Gastrointestinal Transit Energy Intake Appetite Regulation Gastric Emptying Digestive System Physiological Phenomena |
Description: | © 2007 American Society for Nutrition |
DOI: | 10.1093/ajcn/86.3.531 |
Published version: | http://www.ajcn.org/cgi/content/abstract/86/3/531 |
Appears in Collections: | Aurora harvest 6 Medicine publications |
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