Research Associate, Dr.C.L.Baid Metha Foundation for Education and Research, Thoraipakkam, Chennai-600 097, Tamil nadu, India
Objective: The role of herbs against the free radicals have been put forth recently in combating many diseases. The aim of this study was to elucidate the in vitro capacity and in vivo antioxidant properties of sedimental extract of Tinospora cordifolia (SETc). Materials and Methods: SETcwas subjected to in vitro chemical analysis such as 1,1-diphenyl-2-picrylhydrazyl (DPPH), nitric oxide, hydrogen peroxide, and superoxide anion radicals scavenging respectively and finally drugs reductive ability in order to elucidate the antioxidant capacity of the test drug before introducing it into the biological membrane. The resulting capacity was evaluated in vivo by analyzing enzymic (SOD, CAT) and non-enzymic (vitamin C & E) antioxidant levels in the homogenized samples of major organs isolated from streptozotocin induced type 2 diabetic rats after 30th day of SETc (1000 mg/kg/p.o.) treatment. Finally, the histopathological evaluation was done using cut portion of the respective organs prone to free radical mediated cell destruction with STZ in order to study their micro anatomical changes. Results: Chemical analysis with SETc in vitro for its IC50 proves a key evident for its total antioxidant capacity of around 2046 times, in 1000 mg/kg of fixed dose per oral for in vivo analysis. In contrast to the above, the lipid peroxide levels and in vivo enzymic and non-enzymic antioxidant levels were found to possess most significant difference (p<0.001) and moderate difference (p<0.01) with diabetic non-treated animals which was an supporting contribution for those in vitro parameters studied and have proved that SETc (1000 mg/kg/p.o.) was a potent drug to elevate the antioxidants levels and further healing of damaged organs as compared with that of diabetic and standard drug treated groups. Conclusions: Finally, it was concluded that, the presence of antioxidant potentials in SETc was about 2046 time as an effective scavenger of free radicals in vitro and as a potent healer in ameliorating many signs of tissue damages in vivo in long term complicated diseases such as diabetes.
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