Anti-spermatogenic activity of ethanol extract of Dalbergia sissoo Roxb. stem bark.

The study was undertaken to evaluate the anti-spermatogenic efficacy of ethanol extract of stem bark of Dalbergia sissoo Roxb. For the in vitro study, semen samples were obtained from 15 healthy fertile men aged 25-35 years. Sperm motility was examined by the Sander-Cramer method. A dose-dependent and time-dependent effect of ethanol extract on sperm motility and sperm viability were observed. Various concentrations affected the motility of sperm. Ethanol extract at a concentration of 20 mg/mL caused complete immobilization within 3 minutes. Sperm viability and hypo-osmotic swelling was significantly reduced at this concentration. The in vivo studies were carried out on Swiss male albino mice. Ethanol extract at a dose of 200 mg/kg body weight resulted in a significant decrease (p<0.001) in weight of the testis and epididymis. A significant decrease (p<0.01) in sperm motility and sperm count in the epididymis were observed. Histological changes in the epididymis and testis were also investigated.