Fig. 1

Epididymis tissue NF-κB, Nrf-2 and HO-1 levels (a); prostate tissue NF-κB, Nrf-2 and HO-1 levels (b); testes tissue NF-κB, Nrf-2 and HO-1 levels (c); vas deferens tissue NF-κB, Nrf-2 and HO-1 levels (d) western blot bands. Data are expressed as a ratio of normal control value (set to 100 %). Blots were repeated at least 4 times (n = 4) and a representative blot is shown. Actin was included to ensure equal protein loading. The bars represent the standard error of the mean. Data points with different superscripts are significantly different at the level of P < 0.05 by Fisher’s multiple comparison test