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Anim Sci J. 2017 Nov;88(11):1763-1767. doi: 10.1111/asj.12829. Epub 2017 May 30.

Effects of taurine on plasma glucose concentration and active glucose transport in the small intestine.

Author information

1
Department of Health and Nutrition, Faculty of Home Economics, Tohoku Women's College, Hirosaki, Aomori, Japan.
2
Department of Domestic Science, Faculty of Domestic Science, Tohoku Seikatsu Bunka University, Sendai, Miyagi, Japan.

Abstract

Taurine lowers blood glucose levels and improves hyperglycemia. However, its effects on glucose transport in the small intestine have not been investigated. Here, we elucidated the effect of taurine on glucose absorption in the small intestine. In the oral glucose tolerance test, addition of 10 mmol/L taurine suppressed the increase in hepatic portal glucose concentrations. To investigate whether the suppressive effect of taurine occurs via down-regulation of active glucose transport in the small intestine, we performed an assay using the everted sac of the rat jejunum. Addition of taurine to the mucosal side of the jejunum suppressed active glucose transport via sodium-glucose cotransporter 1 (SGLT1). After elimination of chloride ions from the mucosal solution, taurine did not show suppressive effects on active glucose transport. These results suggest that taurine suppressed the increase in hepatic portal glucose concentrations via suppression of SGLT1 activity in the rat jejunum, depending on chloride ions.

KEYWORDS:

chloride dependency; jejunum; sodium-glucose cotransporter 1; taurine

PMID:
28557059
DOI:
10.1111/asj.12829
[Indexed for MEDLINE]

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