In this research, the effects of heroin in the placenta of addicted mouse were studied properly.Methods and Materials: For this reason we used of addicted female mice before, during and after gestation and also a control group of healthy mice. The male mice were in two groups of addicted and healthy. Heroin were used in concentration of 0.1, 0.3 and 0.5 mg/ml in tap water. Placenta of mice sepa...
