Biological and Pharmaceutical Bulletin
Online ISSN : 1347-5215
Print ISSN : 0918-6158
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Antidiabetic Activity of the Rhizoma of Anemarrhena asphodeloides and Active Components, Mangiferin and Its Glucoside
Toshihiro MIURAHiroyuki ICHIKINaoki IWAMOTOMotoshi KATOMasayoshi KUBOHiroshi SASAKIMinoru OKADATorao ISHIDAYutaka SEINOKeiichiro TANIGAWA
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2001 Volume 24 Issue 9 Pages 1009-1011

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Abstract

The antidiabetic activity of the rhizoma of Anemarrhena asphodeloides was investigated in KK-Ay mice, an animal model of genetic type 2 diabetes. The water extract of the rhizoma (AA) (90 mg/kg) reduced blood glucose levels from 570±29 to 401±59 mg/dl 7 h after oral administration (p<0.05) and also tended to reduce serum insulin levels in KK-Ay mice. AA-treated KK-Ay mice had significantly reduced blood glucose levels in an insulin tolerance test. Based on these results, the antidiabetic mechanism of AA may be due to decreased insulin resistance. In addition, the active components of AA were confirmed to be mangiferin and its glucoside.

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© 2001 The Pharmaceutical Society of Japan
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