Figure 2From: Nitric oxide involvement in the acrosome reaction triggered by leptin in pig spermImmunoblots of nitric oxide synthase (NOS) isoforms from pig sperm extract: positive control in lanes MCF7; representative pig sperm samples in lanes 1 and 2. Numbers on the left-hand side correspond to molecular weights of detected proteins, while specific NOS isoforms are indicated on the right-hand side. β-Actin serves as a loading control.Back to article page