Dietary daidzein decreases food intake accompanied with delayed gastric emptying in ovariectomized rats

Author:

Adhikari Sudhashree1,Bhattarai Keshab1,Abe Yasuhiro2,Kira Mayu2,Fujitani Mina2,Miyada Tomihiro3,Kishida Taro12

Affiliation:

1. The United Graduate School of Agricultural Sciences, Ehime University, Matsuyama, Japan

2. Graduate School of Agriculture, Ehime University, Matsuyama, Japan

3. Department of Clinical Nutrition, Faculty of Health Science and Technology, Kawasaki University of Medical Welfare, Kurashiki, Japan

Abstract

ABSTRACT We previously found that equol, a metabolite of intestinal bacterial conversion from soy isoflavone daidzein, has female-specific anorectic effects. In the present study, we used seven-week-old female ovariectomized (OVX) Sprague Dawley rats to test the hypothesis that the anorectic effect of dietary daidzein may be attributed to delayed gastric emptying. Results suggest that dietary daidzein delays gastric emptying and that it has an anorectic effect with residual gastric contents, but not without gastric contents. Dietary equol significantly decreased daily food intake in the OVX rats without sleeve gastrectomy, but not in those with sleeve gastrectomy, suggesting that the accumulation of food in the stomach is required for the anorectic effect of equol to occur. These results support the hypothesis that the anorectic effect of dietary daidzein is attributed to delayed gastric emptying.

Publisher

Oxford University Press (OUP)

Subject

Organic Chemistry,Molecular Biology,Applied Microbiology and Biotechnology,General Medicine,Biochemistry,Analytical Chemistry,Biotechnology

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