Mangiferin (MF) isolated from Anemarrhena asphodeloides Bunge rhizome, was tested for antidiabetic activity in KK-Ay mice, an animal model of type-2 diabetes. MF lowered the blood glucose level of KK-Ay mice 3 weeks after oral administration (p < 0.01). However, no effect on the blood glucose level in normal mice was seen, indicating that MF could be useful in treating type-2 diabetes. In addition, MF improved hyperinsulinemia and, on insulin tolerance test, reduced blood glucose levels of KK-Ay mice. From these findings, it seems likely that MF exerts its antidiabetic activity by decreasing insulin resistance.
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Univ Stellenbosch, Dept Food Sci, ZA-7602 Stellenbosch, South AfricaAgr Res Council, Postharvest & Wine Technol Div, ZA-7599 Stellenbosch, South Africa
van der Merwe, J. Debora
Joubert, Elizabeth
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Agr Res Council, Postharvest & Wine Technol Div, ZA-7599 Stellenbosch, South Africa
Univ Stellenbosch, Dept Food Sci, ZA-7602 Stellenbosch, South AfricaAgr Res Council, Postharvest & Wine Technol Div, ZA-7599 Stellenbosch, South Africa
Joubert, Elizabeth
Manley, Marena
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Univ Stellenbosch, Dept Food Sci, ZA-7602 Stellenbosch, South AfricaAgr Res Council, Postharvest & Wine Technol Div, ZA-7599 Stellenbosch, South Africa
Manley, Marena
de Beer, Dalene
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Agr Res Council, Postharvest & Wine Technol Div, ZA-7599 Stellenbosch, South AfricaAgr Res Council, Postharvest & Wine Technol Div, ZA-7599 Stellenbosch, South Africa
de Beer, Dalene
Malherbe, Christiaan J.
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Agr Res Council, Postharvest & Wine Technol Div, ZA-7599 Stellenbosch, South AfricaAgr Res Council, Postharvest & Wine Technol Div, ZA-7599 Stellenbosch, South Africa
Malherbe, Christiaan J.
Gelderblom, Wentzel C. A.
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Univ Stellenbosch, Dept Biochem, ZA-7602 Stellenbosch, South Africa
MRC, PROMEC Unit, ZA-7505 Tygerberg, South AfricaAgr Res Council, Postharvest & Wine Technol Div, ZA-7599 Stellenbosch, South Africa