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现代医学研究结果,体内各元素间既协同其生理作用又具有相互拮抗和抵制影响作用。镉和锌有显著拮抗作用。镉与铁也有类似的拮抗作用。可疑致癌元素有镍,镍主要参与激活酶、辅酶和细胞激素,色素代谢。长久地接触,镍粉尘则易患肺癌、鼻癌、鼻窦癌。当铁摄入超过正常剂量几倍时,肿瘤发病率明显升高。潜在致癌元素有钴和硒,但尚无对人致癌的循证医学资料或临床报道。
As a result of modern medical research, the elements in the body cooperate with both their physiological effects and antagonize and resist the effects. Cadmium and zinc have a significant antagonistic effect. Cadmium and iron also have similar antagonistic effects. Suspected carcinogens nickel, nickel mainly involved in activating enzymes, coenzymes and cytokines, pigment metabolism. Long-term exposure, nickel dust is susceptible to lung cancer, nasal cancer, sinus cancer. When iron intake several times more than normal dose, the incidence of cancer was significantly increased. Potentially carcinogenic elements are cobalt and selenium, but there is no evidence-based medical or clinical data on human carcinogenesis.