Fig. 5From: Proteomic identification of cryostress in epididymal spermatozoaExpression of SOD and NDUFV2 before and after cryopreservation. a Ratio of SOD2 to α-tubulin expression before and after cryopreservation. b Ratio of NDUFV2 to α-tubulin expression before and after cryopreservation. c Expression of SOD, NDUFV2 and before and α-tubulin after cryopreservation. Data are presented as mean ± SEM. (*P < 0.05, n = 9)Back to article page