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Related Concept Videos

Regulation of Food Intake01:30

Regulation of Food Intake

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Short-term regulation of food intake primarily involves neural signals from the gastrointestinal (GI) tract, blood nutrient levels, and GI tract hormones. Communication between the gut and brain via vagal nerve fibers plays a significant role in evaluating the contents of the gut. Clinical studies have shown that protein ingestion produces a more prolonged response in these nerve fibers compared to an equivalent amount of glucose. Additionally, the activation of stretch receptors caused by GI...
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Gastric emptying occurs when the stomach gradually releases chyme into the duodenum. When the stomach is distended, it triggers the release of gastrin, a hormone that promotes gastric acid secretion to aid in digestion. Additionally, stomach distension contributes to peristaltic waves that propel gastric contents toward the pyloric region. The gastroenteric reflex, on the other hand, primarily stimulates peristalsis in the intestines, facilitating the movement of contents further along the...
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Correction: Pramesthi et al. Evaluating the Impact of Indonesia's National School Feeding Program (ProGAS) on Children's Nutrition and Learning Environment: A Mixed-Methods Approach. <i>Nutrients</i> 2025, <i>17</i>, 3575.

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Roux-en-Y Gastric Bypass Operation in Rats
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Does FGF21 Mediate the Potential Decrease in Sweet Food Intake and Preference Following Bariatric Surgery?

Mette S Nielsen1, Christian Ritz2, Anne Chenchar1,3

  • 1Novo Nordisk Foundation Center for Basic Metabolic Research, Faculty of Health and Medical Sciences, University of Copenhagen, 2200 Copenhagen, Denmark.

Nutrients
|November 27, 2021
PubMed
Summary
This summary is machine-generated.

Bariatric surgery did not alter fibroblast growth factor 21 (FGF21) levels. Postoperative changes in FGF21 did not mediate reduced sweet food intake or preference after surgery.

Keywords:
fibroblast growth factor 21food preferenceroux-en-Y gastric bypasssleeve gastrectomysweet taste sensitivitytaste preference

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Area of Science:

  • Endocrinology
  • Metabolic Surgery
  • Obesity Research

Background:

  • Fibroblast growth factor 21 (FGF21), a liver hormone, is implicated in sweet taste preference.
  • Bariatric surgery often leads to reduced sweet food intake and preference.

Purpose of the Study:

  • To investigate if surgery-induced changes in FGF21 mediate the reduction in sweet food intake and preference following bariatric surgery.

Main Methods:

  • Assessed intact plasma FGF21 levels, sweet food intake, hedonic evaluation of sweet taste, and sweet taste sensitivity before and 6 months after bariatric surgery in 40 participants.
  • Included Roux-en-Y gastric bypass and sleeve gastrectomy procedures.

Main Results:

  • Pre-surgery, FGF21 levels negatively correlated with hedonic evaluation of high-sucrose juice.
  • No significant changes in pre- or postprandial FGF21 levels were observed 6 months post-surgery.
  • Postoperative changes in FGF21 did not correlate with changes in sweet food intake, hedonic evaluation, or taste sensitivity.

Conclusions:

  • Bariatric surgery did not significantly affect circulating FGF21 levels.
  • Circulating FGF21 does not appear to mediate the effects of bariatric surgery on sweet food preference or intake.