Administration of biotin prevents the development of insulin resistance in the skeletal muscles of Otsuka long-Evans Tokushima fatty rats

Yuka Sasaki, Hideyuki Sone, Shin Kamiyama, Muneshige Shimizu, Hitoshi Shirakawa, Yasuo Kagawa, Michio Komai, Yuji Furukawa

Research output: Contribution to journalArticle

6 Citations (Scopus)

Abstract

Otsuka Long-Evans Tokushima Fatty (OLETF) rat is an animal model for type 2 diabetes mellitus. In the present study, we investigated whether pharmacologic doses of biotin have the potential to abate insulin resistance in the skeletal muscles of OLETF rats. OLETF rats (34 weeks of age) were divided into 2 groups and given distilled water (OLETF-control group) or distilled water containing 3.3 mg L -1 of biotin (OLETF-biotin group) for 8 weeks. At the end of experimental period, the OLETF-control rats developed severe hyperglycemia and hyperinsulinemia, whereas the OLETF-biotin rats showed significantly smaller responses to oral glucose tolerance test than the OLETF-control rats. The glucose uptake in the hind limbs of the rats was significantly higher in the OLETF-biotin group than in the OLETF-control group. Biotin administration increased the glucose transporter type 4 (GLUT4) protein content in the total membrane fraction but had little effect on the GLUT4 content in the plasma membrane fraction. These results indicate that administration of a pharmacological dose of biotin prevents the development of insulin resistance in the skeletal muscles of OLETF rats presumably via an increase in GLUT4 protein expression but not via GLUT4 translocation.

Original languageEnglish
Pages (from-to)414-419
Number of pages6
JournalFood and Function
Volume3
Issue number4
DOIs
Publication statusPublished - 2012 Apr 1

ASJC Scopus subject areas

  • Food Science

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