硒是人体必需的微量元素,是谷胱甘肽过氧化物酶(GSH-px)的组成成分。研究环境化学因素对健康的影响,不仅要注意单个元素的作用,同时要注意各个元素之间的相互作用。胃肠外给动物硒可以保护镉所致的睾丸损害。但经口摄入镉和硒,更接近人类正常暴露环境污染物的情况。本实验经口给大鼠镉并补充小剂量的硒,观察镉的毒作用及硒的保护作用。 Selenium is an essential trace element and is a component of glutathione peroxidase (GSH-px). To study the environmental health effects of chemical factors, not only pay attention to the role of a single element, but also pay attention to the interaction between the various elements. Selenium for animal parenteral protection of cadmium can cause testicular damage. However, oral intake of cadmium and selenium is closer to the normal human exposure to environmental pollutants. In this experiment, rats were given oral cadmium and supplemented with small doses of selenium to observe the toxic effects of cadmium and selenium protective effect.