EFFECT OF OCIMUM SANCTUM (TULSI) AND VITAMIN E ON BIOCHEMICAL PARAMETERS AND RETINOPATHY IN STREPTOZOTOCIN INDUCED DIABETIC RATS
Journal Title: Indian Journal of Clinical Biochemistry - Year 2006, Vol 21, Issue 2
Abstract
This study was carried out to see the effect of the aqueous extract of Ocimum sanctum Linn (Tulsi) with Vitamin E on biochemical parameters and retinopathy in the streptozotocin-induced diabetic albino male rats. Adult albino male rats weighing 150-200gm were made diabetic by intraperitoneal injection of streptozotocin in the dose 60 mg/kg in citrate buffer (pH 6.3). The diabetic animals were left for one month to develop retinopathy. Biochemical parameters like plasma glucose, oral glucose tolerance and glycosylated hemoglobin HbA1c, were measured along with lipid profile, and enzymes like glutathione peroxidase (GPX), lipid peroxidase (LPO), superoxide dismutase (SOD), catalase (CAT) and glutathione -S- transferase (GST) in normal, untreated diabetic rats and diabetic rats treated with Ocimum sanctum L extracts and vitamin E. Fluorescein angiography test was done for assessing retinopathy. Results on biochemical parameters were analyzed statistically by using ANOVA followed by Dunnet’s ‘t’- test. A p-value of < 0.05 was considered as significant. Evaluation of biochemical profile in treated groups showed statistically significant reduction in plasma levels of glucose, HbA1c, lipid profile and LPO, and elevation of GPX, SOD, CAT and GST. Treatment of the diabetic animals with Ocimum sanctum and Vitamin E, alone and in combination for 16 weeks showed reversal of most of the parameters studied including plasma glucose levels. Angiography showed improvement in retinal changes following combined antidiabetic treatment.
Authors and Affiliations
Halim Eshrat M. and A. K. Mukhopadhyay
Keywords
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