Abstract

In a previous study, we showed that prior oral feeding of oils rich in ω-3 eicosapentaenoic acid and docosahexaenoic acid and ω-6 γ-linolenic acid and arachidonic acid prevent the development of alloxan-induced diabetes mellitus in experimental animals. We also observed that 99% pure ω-6 fatty acids γ-linolenic acid and arachidonic acid protect against chemically induced diabetes mellitus. Here we report the results of our studies with ω-3 fatty acids. Alloxan-induced in vitro cytotoxicity and apoptosis in an insulin-secreting rat insulinoma cell line, RIN, was prevented by prior exposure of these cells to α-linolenic acid, eicosapentaenoic acid, and docosahexaenoic acid. Prior oral supplementation with α-linolenic acid, eicosapentaenoic acid, and docosahexaenoic acid prevented alloxan-induced diabetes mellitus. α-Linolenic acid, eicosapentaenoic acid, and docosahexaenoic acid not only attenuated chemical-induced diabetes mellitus but also restored the anti-oxidant status to normal range in various tissues. These results suggested that ω-3 fatty acids can abrogate chemically induced diabetes in experimental animals and attenuate the oxidant stress that occurs in diabetes mellitus.

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