微量元素对人体的生理作用已为人们所关注。本文报道三种微量元素硒、硅、钼,对小鼠 S-180、ECA、肝癌3种瘤株的抑瘤和预防作用的研究:(1)硒盐2mg/kg/日的剂量,给小鼠腹腔注射,连续7天,对 ECA 抑制作用非常显著,生命延长率经3次试验结果为97.4,104.9,156.3%,与对照组相比(P<0.01)有非常显著的差异性;对 S-180,肝癌无抑 The physiological effects of trace elements on the human body have been of concern to people. In this paper, three kinds of trace elements selenium, silicon and molybdenum were reported to inhibit the tumor and prevent the three tumor strains of mouse S-180, ECA, and liver cancer: (1) Selenium salt 2mg/kg/day dose, to small Intraperitoneal injection of mice for 7 days, the inhibition of ECA is very significant, the life extension rate of 3 tests results were 97.4,104.9,156.3%, compared with the control group (P<0.01) there is a very significant difference; -180, no suppression of liver cancer