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Modulatory Effect of Isopulegol on Hepatic Key Enzymes of Glucose Metabolism in High-Fat diet/streptozotocin-induced Diabetic Rats

Modulatory Effect of Isopulegol on Hepatic Key Enzymes of Glucose Metabolism in High-Fat diet/streptozotocin-induced Diabetic Rats

Karunanithi Kalaivani, Chandrasekaran Sankaranarayanan

Arch Physiol Biochem. 2019 Jul 10;1-9.

PMID: 31291130

Abstract:

To investigate the antidiabetic effect of isopulegol in high-fat diet (HFD)/streptozotocin (STZ)-induced diabetic rats. Animals were made diabetic by feeding HFD for 4 weeks followed by single intraperitoneal injection of STZ (35 mg/kg b.w.; 0.1 M citrate buffer; pH 4.0). Plasma insulin, haemoglobin and glycogen content were decreased while increased glucose and glycated haemoglobin were observed in diabetic rats. An increase in glucose-6-phosphatase, fructose-1,6-bisphosphatase, phosphoenol pyruvate carboxykinase with a decrease in hexokinase, glucose-6-phosphate dehydrogenase and glycogen synthase activities was observed in diabetic rats. The expression of cyclic response element binding protein (CREB) was increased in the hepatic tissue of diabetic rats. Isopulegol dose dependently (50, 100 and 200 mg/kg b.w.) improved insulin secretion, glucose tolerance and decreased glucose levels in diabetic-treated rats. At the effective dose of 100 mg/kg b.w., isopulegol restored the activities of metabolic enzymes and down-regulated CREB expression. Thus, isopulegol restored glucose homeostasis through its insulinotrophic property.

Chemicals Related in the Paper:

Catalog Number	Product Name	Structure	CAS Number	Price
AP89792	(−)-Isopulegol		89-79-2	Price

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