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The present study was designed to evaluate the role of Coriander (Coriandrum sativum) for management of diabetes instead of manufactured drugs, which led to many complications. Medicinal plants would be higher useful for this purpose because they are considered to be effective and non-toxic and safer than manufactured drugs. Aqueous extract of Coriander (C. sativum) was used to measurements their antidiabetic and hepatoprotective effects in streptozocin (STZ) induced diabetic male albino rats. Coriander (C. sativum) was given to the STZ induced diabetic rats at the concentration of 200 mg/kg body weight in different groups of three diabetic rats each orally once a day for 15 days. Body weight showed significant increase after 15 days of treatment with Coriander (C. sativum) extract compared with the normal control rats group (N). Blood glucose level on 15th day of treatment became significantly lower. The extract induced significant reduction in serum glucose, total lipids, total cholesterol, triglycerides level and transaminases (AST, ALT and γ-GT) activities. Liver glycogen content was significantly increased in treated animals compared to control group (N). The present data revealed insignificant changes in the serum total protein, albumin and globulin level during the experimental period. The lipid peroxidation determined was found to be decreased in plasma, liver and kidney of streptozocin induced diabetic rats treated with Coriander (C. sativum) extract (STZ/T) and rats group given Coriander (C. sativum) extract and then induced streptozocin (T/STZ), compared to control streptozocin induced diabetic rats group (STZ©). Glutathione reductase (GSH-R), glutathione peroxidase (GSH-P) and superoxide dismutase (SOD) activities were increased in liver and kidney of rat groups. These findings demonstrates that Coriander (C. sativum) extract have antioxidant effect for reducing lipid peroxidation in plasma and tissues and improve the liver function and antioxidant enzymes in treated rat groups compared to diabetic control rat group (STZ©). These observations revealed that the use of Coriander (C. sativum) extract can be recommended as natural antidiabetic, antioxidant and hypolipidemic activity agent. Findings of the present study suggest that the aqueous extract of Coriander (C. sativum) at the dose of 200 mg/kg body weight brings about significant beneficial effects in various biochemical parameters during diabetic and these effects are quite comparable with standard drug used to treat diabetes mellitus.
Moharib et al. (Sat,) studied this question.