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Abstract Title:

Ameliorating effect of berbamine on hepatic key enzymes of carbohydrate metabolism in high-fat diet and streptozotocin induced type 2 diabetic rats.

Abstract Source:

Biomed Pharmacother. 2018 Apr 17 ;103:539-545. Epub 2018 Apr 17. PMID: 29677540

Abstract Author(s):

Sankaranarayanan Chandrasekaran, Nishanthi Ramajayam, Pugalendi Pachaiappan

Article Affiliation:

Sankaranarayanan Chandrasekaran

Abstract:

BACKGROUND: Aberrations in the activities of key enzymes of carbohydrate metabolism is well documented in diabetes mellitus. Previous studies have shown that active ingredients in the extracts of Berberis aristata exhibits diverse pharmacological activities in animal models.

OBJECTIVE: The present study was undertaken to investigate whether berbamine (BBM), an alkaloid from the roots of Berberis aristata can ameliorate the altered activities of carbohydrate metabolic enzymes in high fat diet (HFD)/streptozotocin (STZ) induced diabetic rats.

RESULTS: Supplementation of HFD for 4 weeks followed by intraperitonial administration of single low dose of STZ (40 mg/kg b.w.) to Sprague Dawley rats resulted in significant hyperglycemia with a decline in plasma insulin levels. The rats also exhibited decreased hemoglobin with an increase in glycated hemoglobin levels. The activities of hexokinase, glucose-6-phosphate dehydrogenase were decreased whereas increases in the activities of glucose-6-phosphatase and fructose-1,6-bisphosphatase were observed in the hepatic tissues of diabetic control rats. Glycogen content in the hepatic and skeletal muscle tissues were found to be decreased in diabetic rats. Oral administration of BBM for 56 days, dose dependently (50, 100, 200 mg/kg b.w.) improved insulin secretion in diabetic treated rats. Immunohistochemical studies on pancreas revealed a strong immunoreactivity to insulin in BBM treated rats. At the effective dose of 100 mg/kg b.w., BBM restored the altered activities of carbohydrate metabolic enzymes and also improved glycogen content in insulin dependent tissues.

CONCLUSION: From the biochemical and histochemical data obtained in this study we conclude that BBM ameliorated the activities of metabolic enzymes and maintained glucose homeostasis in HFD/STZ induced diabetic rats and it can be used as a potential phytomedicine for the management of diabetes mellitus.

Study Type : Animal Study

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