Intragastric infusion of denatonium benzoate attenuates interdigestive gastric motility and hunger scores in healthy female volunteers

Deloose, Eveline; Janssen, Pieter; Corsetti, Maura; Biesiekierski, Jessica; Masuy, Imke; Rotondo, Alessandra; Van Oudenhove, Lukas; Depoortere, Inge; Tack, Jan

Abstract

Background: Denatonium benzoate (DB) has been shown to influence ongoing ingestive behavior and gut peptide secretion.
Objective: We studied how the intragastric administration of DB affects interdigestive motility, motilin and ghrelin plasma concentrations, hunger and satiety ratings, and food intake in healthy volunteers.
Design: Lingual bitter taste sensitivity was tested with the use of 6 concentrations of DB in 65 subjects. A placebo or 1 μmol DB/kg was given intragastrically to assess its effect on fasting gastrointestinal motility and hunger ratings, motilin and ghrelin plasma concentrations, satiety, and caloric intake.
Results: Women (n = 39) were more sensitive toward a lingual bitter stimulus (P = 0.005) than men (n = 26). In women (n = 10), intragastric DB switched the origin of phase III contractions from the stomach to the duodenum (P = 0.001) and decreased hunger ratings (P = 0.04). These effects were not observed in men (n = 10). In women (n = 12), motilin (P = 0.04) plasma concentrations decreased after intragastric DB administration, whereas total and octanoylated ghrelin were not affected. The intragastric administration of DB decreased hunger (P = 0.008) and increased satiety ratings (P = 0.01) after a meal (500 kcal) in 13 women without affecting gastric emptying in 6 women. Caloric intake tended to decrease after DB administration compared with the placebo (mean ± SEM: 720 ± 58 compared with 796 ± 45 kcal; P = 0.08) in 20 women.
Conclusions: Intragastric DB administration decreases both antral motility and hunger ratings during the fasting state, possibly because of a decrease in motilin release. Moreover, DB decreases hunger and increases satiety ratings after a meal and shows potential for decreasing caloric intake

• Journal Article Type: Article
• Acceptance Date: Dec 19, 2016
• Online Publication Date: Feb 1, 2017
• Publication Date: 2017-03
• Deposit Date: Apr 13, 2017
• Publicly Available Date: Apr 13, 2017
• Journal: American Journal of Clinical Nutrition
• Print ISSN: 0002-9165
• Electronic ISSN: 1938-3207
• Publisher: Oxford University Press
• Peer Reviewed: Peer Reviewed
• Volume: 105
• Issue: 3
• Pages: 580-588
• DOI: https://doi.org/10.3945/ajcn.116.138297
• Keywords: Bitter, hunger, migrating motor complex, motilin,denatonium benzoate
• Public URL: https://nottingham-repository.worktribe.com/output/837102
• Publisher URL: https://academic.oup.com/ajcn/article/105/3/580/4569699