Figure 1: Caspase 7 expression participates in normal spermatogenesis. (a) Caspase 7 mRNA level was detected by qRT-PCR. (b) Caspase 7 protein was detected by Western blot. (c) Caspase 7 protein was detected by IHC (×40). (d) HE staining of testis tissues at different postpartum times (×40). (e) The mRNA levels of caspase 3 and caspase 9 were detected by qRT-PCR. Scale bar = 50 μm.