The effects of low-dose Bay-m-1099 (Miglitol) on serum lipids and liver enzyme activity of obese and obese-diabetic corpulent rats
1991
Tulp, O.L. | Szepesi, B. | Michaelis, O.E. IV. | DeBouno, J.F. Jr
Groups of lean, obese, and obese-non-insulin-dependent diabetic LA/N-cp and SHR/N-cp rats were administered the a-glucosidase inhibitor Miglitol (150 mg/kg diet, ad libitum) from 8 until 15 weeks of age. Phenotype effects (obese > lean) were present for weight gain, adiposity, serum glycemic and lipid parameters, and for liver glucokinase, glucose-6-phosphate dehydrogenase, and malic enzyme activity. Miglitol treatment was associated with improvements in glucokinase and malic enzyme in both strains, and in improvements in glycemic parameters in obese rats. These results are consistent with variable improvements in glycemic control and insulin action following low dose Miglitol treatment, and indicate that indirect effects of the drug on insulin sensitivity in peripheral tissues and on glucoregulatory enzymes may contribute to the glycemic improvements observed with this drug, while greater dosages or longer treatment may be required to observe comparable improvements in adiposity or plasma lipid profiles.
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