Superoxide Dismutase and Catalase Activities in the Retina during Experimental Diabetes and Electric Stimulation of the Paleocerebellar Cortex

In 1.5 months after modeling of streptozotocin-induced diabetes mellitus, superoxide dismutase and catalase activities decreased by 40.7 and 32.0%, respectively, in comparison with the corresponding values in Wistar rats without diabetes. Electric stimulations (100 Hz, 0.25 msec, 50-100 o A, 2.5 sec) of the paleocerebellar cortex (V-VII lobules) were conducted 3 times a day over 1 month. These stimulations prevented the decrease in antioxidant enzyme activity in rats with experimental diabetes.