作者：张亚飞，聂青和，邵彬，罗新栋，王平忠，陈朝霞，徐辉，李军 【关键词】 肝炎病毒 【Abstract】 AIM: To investigate the effect of HCV persistent infection on synthesis and secretion of MMP2 and MMP9 of human placental syncytiotrophoblast in vitro. METHODS: ELISA was employed to evaluate the effect of HC..