SOD1 and Hyperglycemia: An Ayurvedic formulation consisting of Withania somnifera, Tinospora cordifolia, Eclipta alba, Ocimum sanctum, Picrorhiza kurroa and shilajit, at doses of 100 and 200 mg/kg, p.o. administered once daily for 28 days to streptozotocin- (STZ-) induced diabetic male CF strain rats, induced a dose-related decrease in STZ hyperglycemia and attenuation of STZ induced decrease in pancreatic islet superoxide dismutase (SOD) activity.