Authors : Takeshi Ohta, Katsuhiro Miyajima and Takahisa Yamada
Abstract: A high-sucrose diet induces insulin resistance and dyslipidemia in normal rats. The purpose of the present study was to investigate the effects of a high-sucrose diet on glycolipid metabolism in Spontaneously Diabetic Torii (SDT) rats, a genetic model of nonobese type 2 diabetes. Male SDT rats were fed with a high-sucrose (68% of energy) diet from 8-24 weeks of age. SDT rats fed a high-sucrose diet showed hypercholesterolemia, hyperinsulinemia and hyperleptinemia but the body weight and the serum triglyceride level were not increased. Unexpectedly in SDT rats fed a high-sucrose diet, we observed a suppress of the incidence of diabetes mellitus. In computed tomography analysis, SDT rats fed a high-sucrose diet showed an increase of visceral or subcutaneous fat tissue weight. In pathological analyses, slight or mild fatty liver was observed by high-sucrose feeding. A high-sucrose diet in SDT rats induced dyslipidemia, insulin resistance and fat storage but not development of diabetes. High sucrose-fed diabetic rats are considered to be useful for further elucidation of complex mechanisms in glycolipid metabolic abnormality.
Takeshi Ohta, Katsuhiro Miyajima and Takahisa Yamada, 2010. Changes in Glycolipid Metabolism During A High-Sucrose Feeding in Spontaneously Diabetic Torii (SDT) Rats, A Genetic Model of Nonobese Type 2 Diabetes. Journal of Animal and Veterinary Advances, 9: 2883-2889.