中华预防医学杂志
中華預防醫學雜誌
중화예방의학잡지
Chinese Journal of Preventive Medicine
2015年
9期
831-834
,共4页
纳米结构%金属纳米粒子%遗传学%氧化应激%生物效应
納米結構%金屬納米粒子%遺傳學%氧化應激%生物效應
납미결구%금속납미입자%유전학%양화응격%생물효응
Nanostructures%Metal nanoparticles%Genetics%Oxidative%Biological effects
金属纳米材料已在各领域得到了广泛的应用,然而其存在的潜在风险仍不可忽视。本文就不同金属纳米材料遗传毒作用表现和毒效应机制方面的内容进行了探讨。金属纳米材料经多途径暴露进入机体,通过循环系统在多个脏器分布。金属纳米颗粒主要经胞吞作用进入细胞,在细胞内直接或经代谢后间接损伤遗传物质,影响细胞周期和基因组稳定性,造成基因突变、染色体畸变,甚至令细胞发生死亡或恶性转化。
金屬納米材料已在各領域得到瞭廣汎的應用,然而其存在的潛在風險仍不可忽視。本文就不同金屬納米材料遺傳毒作用錶現和毒效應機製方麵的內容進行瞭探討。金屬納米材料經多途徑暴露進入機體,通過循環繫統在多箇髒器分佈。金屬納米顆粒主要經胞吞作用進入細胞,在細胞內直接或經代謝後間接損傷遺傳物質,影響細胞週期和基因組穩定性,造成基因突變、染色體畸變,甚至令細胞髮生死亡或噁性轉化。
금속납미재료이재각영역득도료엄범적응용,연이기존재적잠재풍험잉불가홀시。본문취불동금속납미재료유전독작용표현화독효응궤제방면적내용진행료탐토。금속납미재료경다도경폭로진입궤체,통과순배계통재다개장기분포。금속납미과립주요경포탄작용진입세포,재세포내직접혹경대사후간접손상유전물질,영향세포주기화기인조은정성,조성기인돌변、염색체기변,심지령세포발생사망혹악성전화。
Although metal nano materials have been widely used in various fields, the potential risks of it still could not be neglected. In this paper, the effects and mechanisms of genotoxicity caused by different nano materials were discussed. Human body can be exposed to metal nano materials through multiple pathways, metals nano follow the blood stream in circulatory system and distribute to organs. Metal nano particles are mainly uptaken into cells by endocytosis,and direct or indirect damages to genes can be induced by these particles after metabolism in cells. These damages would affect the course of cell cycle and the stability of the genome, resulting in gene mutation or chromosome aberration, and even leading to the death or malignant transformation of cells.