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Biol Pharm Bull. 1994 Aug;17(8):1106-10.

Anti-diabetic activity present in the fruit body of Grifola frondosa (Maitake). I.

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  • 1Yukiguni Maitake Co., Ltd. Niigata, Japan.

Abstract

The fruit body of Grifola frondosa (maitake), Basidiomycetes was confirmed to contain substances with anti-diabetic activity. When 1 g/d of powdered fruit body of maitake was given orally to a genetically diabetic mouse (KK-Ay), blood glucose reduction was observed, in contrast to the control group in which the blood glucose increased with ageing. Moreover, levels of insulin and triglyceride in plasma demonstrated a change similar to blood glucose with feeding of maitake. Ether-ethanol-soluble (ES) and hot water-soluble (WS) fractions were prepared from the fruit body and their hypoglycemic activity was examined. Blood glucose-lowering activity was found when ES-fraction or WS-50% ethanol float (X) fraction was administered orally, but other WS-fractions were inactive. These results suggest that the anti-diabetic activity was present not only in the ES-fraction consisting of lipid but also in the X-fraction of peptidoglycan (sugar:protein = 65:35).

PMID:
7820117
[PubMed - indexed for MEDLINE]
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