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Pakistan Journal of Biological Sciences
Year: 2009  |  Volume: 12  |  Issue: 2  |  Page No.: 140 - 145

Plasma Glucose Lowering Effect of the Wild Satureja khuzestanica Jamzad Essential Oil in Diabetic Rats: Role of Decreased Gluconeogenesis

R. Shahsavari, A. Ehsani-Zonouz, M. Houshmand, A. Salehnia, G. Ahangari and M. Firoozrai    

Abstract: This study was to evaluate the effect of the wild SKEO on activities and genes expression of hepatic Glycogen Phosphorylase (GP) and phosphoenolpyruvate carboxykinase (PEPCK) in normal and diabetic rats. The wild SKEO was orally administered at different doses (50 and 100 mg/kg/day) to normal as well as diabetic rats for 21 days. The levels of mRNA were determined using the quantitative real-time RT-PCR technique. The plasma glucose concentrations of diabetic rats receiving SKEO (100 mg kg-1) compared with diabetic control were significantly decreased. Hepatic GP activity and its mRNA levels of diabetic rats treated with SKEO moderately increased. The activity of hepatic PEPCK and its mRNA levels were significantly decreased in normal rats treated with SKEO (100 mg kg-1). The enhancement of PEPCK activity and its mRNA levels of diabetic treated rats with SEKO (100 mg kg-1) was significantly decreased compared with diabetic control. In conclusion, an excessive inhibition of PEPCK in liver of diabetic rats treated with the wild SKEO may contribute to the plasma glucose lowering action of SKEO that seems to be in relation with antioxidant properties of SKEO.

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