Fig. 4From: Obesity impairs male fertility through long-term effects on spermatogenesisComparison of the concentrations of SOD (a) and MDA (b) in the testis homogenate between the two groups. SOD: superoxide dismutase, MDA: malondialdehyde; the data are presented as the mean ± s.e.m.; * P < 0.05 and **P < 0.01Back to article page