Abstract

The present study was undertaken to evaluate the antidiabetic properties with phytochemical screening of the ethanol leaves extracts of two common indigenous medicinal plants of Bangladesh -Azadirachta indica (Neem) and Andrographis peniculata (Kalomegh) on experimental animal model. Hypoglycemic activity of the concentrated ethanolic (90%) extract of Azadirachta indica and Andrographis peniculata were studied compared with that of a reference antidiabetic drug glimeperide in both glucose loaded and alloxan induced diabetic rats. The acute toxicity of these two plants extract was also studied. Experimental results showed that ethanol leaves extract (1 gm/kg) of Azadirachta indica and Andrographis peniculata significantly (P<0.01) reduced the elevated blood glucose level by 36.91 % and 40.65 % respectively in glucose loaded rats and 30.20 % and 32.18 % respectively in alloxan induced diabetic rats compared to the respective diabetic control group. This study strongly suggested that ethanol leaves extracts of Azadirachta indica and Andrographis peniculata possess significant antidiabetic activity and could be a potential source for treatment of diabetes mellitus.

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