BACKGROUND&AIM: To study the effect of(Haishen polysaccharide peptide,HPP)on the apoptosis and apoptosis gene of mice hepatic cells induced by 60 Co_γirradiation. MATERIAL AND METHODS: Mice were fed150mg/kg and100mg/kg HPP for four weeks.Mice were then irradiated with 60 Co_γto induce hepatic cells apoptosis once a day five days a week.Four weeks later,in situ cell death detection kit and in situ hybridization were applied to measure qualitative changes at expression level of POD and Caspase_3positive cells...