Protective Effects of γ-Aminobutyric Acid in Rats with Streptozotocin-Induced Diabetes
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概要
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The effects of γ-aminobutyric acid (GABA) in rats with experimental diabetes mellitus were examined. Diabetes mellitus was induced in adult male Wistar rats by streptozotocin (STZ) injection. Oral administration of GABA (100 or 200mg/kg body weight/d) for 10d to the diabetic rats resulted in a significant decrease in their serum glucose level. GABA also reduced the level of glycosylated protein in serum, indicating an improvement of hyperglycemic conditions. Rats with STZ-induced diabetes showed arrested body weight gain and an increase in both liver and kidney weight, whereas oral administration of GABA attenuated the organ hypertrophy induced by hyperglycemia. In addition, the degree of serum thiobarbituric acid (TBA)-reactive substance level was significantly lower in the rats treated with 100mg GABA, and the degree of TBA-reactive substance in the liver and kidney was reduced by GABA in a dose-dependent manner. These results suggest that GABA treatment protects against the development of diabetic complications resulting from impaired glucose metabolism and enhanced oxidative stress.
著者
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Yokozawa Takako
Institute of Natural Medicine, University of Toyama
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KIM Hyun
Institute of Natural Medicine, University of Toyama
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Yokozawa Takako
Institute Of Natural Medicine Toyama Medical And Pharmaceutical University
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Nakagawa Takako
Institute of Natural Medicine, Toyama Medical and Pharmaceutical University
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SHIBAHARA Naotoshi
Institute of Natural Medicine, Toyama Medical and Pharmaceutical University
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Shibahara Naotoshi
Institute Of Natural Medicine Toyama Medical And Pharmaceutical University
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Kim Hyun
Institute Of Natural Medicine Toyama Medical And Pharmaceutical University
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Nakagawa Takako
Institute Of Natural Medicine Toyama Medical And Pharmaceutical University
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KIM Hyun
Institute of Natural Medicine, Toyama Medical and Pharmaceutical University
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KIM Hyun
Institute of Musculoskeletal Aging, Hallym University
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