Fig. 2.

Effects of α-MSH doses on ERG b waves (group I-a). Shown here are percentages of mean values of b waves measured in electroretinogramms of baseline and ischemic/reperfused eyes of vehicle-treated (control) animals and ischemic/reperfused eyes of rats treated with 50, 250, 500, and 1,000 μg/kg α-MSH with standard error of the mean (SEM). Percentages were calculated relative to control baseline values. Horizontal lines indicate comparisons. The significance of comparisons is indicated as follows: ns not significant; *p < 0.05; **p < 0.01; ***p < 0.001