Protective effects of p­coumaric acid on ethanol induced male reproductive toxicity.

Alcohol, a psychoactive drug is one of the lifestyle factors responsible for male infertility. Present study was carried out to investigate the ameliorative effect of p­coumaric acid (PCA), a plant derived bioactive phenolic compound on alcohol induced chronic reproductive toxicity in male rats. Thirty male Wistar rats were divided into five groups, each with six animals. Group I as control received vehicle (distilled water) alone. And the following Group II, III, IV, V were treated orally with sequentially (per week) increased dose of ethanol 25% v/v (5, 8, 10 and 12 g/kg b wt per week in each group) for 28 days. On the 3rd and 4th week, the groups III, IV, V were administered with p­coumaric acid orally at three different concentrations (Low 50 mg/kg b wt; Medium 100 mg/kg b wt; High 200 mg/kg b wt). The rats treated with ethanol showed abnormal sperm characteristics, reduced anti-oxidant level, reduced testosterone level and abnormal testicular histoarchitecture while the rats treated with PCA in addition to ethanol were found to have protective effects on sperm parameters and apoptosis. The increased caspase-3, caspase-7, p21 immunoreactivity and reduced Cdk4 immunoreactivity in ethanol treated rats confirmed that ethanol increases the apoptosis in testis and a reduced expression in the rats treated with PCA in addition to ethanol indicates a protective role of PCA. Overall, our results showed that PCA mitigates alcohol induced male reproductive toxicity and improves reproductive health in male Wistar rats.