中国药理学通报2016，Vol.32Issue(5)：593-597,598,6.DOI:10.3969/j.issn.1001-1978.2016.05.001
纳米银颗粒的毒性效应及作用机制研究进展
Toxic effect and mechanism of silver nanoparticles
摘要
Abstract
Silver nanoparticles ( AgNP) , the metallic silver par-ticles with the diameter of 1 ~100 nm are now widely used in many fields. Many researches show that the smaller size of Ag-NP, the stronger toxicity it shows. Generally speaking, AgNP with 20 nm shows strongest toxicity. After entering the body, they are distributed in different organs in the body, and the dis-tribution in the kidney shows a certain gender difference. They also produce some toxic effects after entering body organs. AgNP often exhibit dose effect on the toxicity in vitro cells,while in vivo experiments, their toxic effects change with the different objects and ways of acting. In addition, AgNP can produce toxic effects on reproduction, and may cause parental reproductive activity to deteriorate, and pass the toxic effects to offspring through the placenta to exert a negative influence on the growth and develop-ment of the offspring. The toxicity mechanisms of AgNP are oxi-dative stress injury caused by producing free radicals;metabolic disorders caused by reducing of drug metabolic enzyme activity;and also related gene expression defects and certain molecules, such as transcription factor NF-E2-related factor 2(Nrf2) prote-ase caused by abnormal expression. In short, AgNP can be toxic to organisms, and we must evaluate their biological safety when we use it, to minimize or even avoid the danger it brings about.关键词
纳米银颗粒/粒度特性/体内分布/毒性效应/氧化应激/Nrf2/酶代谢活力Key words
AgNP/size character/distribution in body/toxici-ty/oxidative stress/Nrf2/metabolic enzyme activities分类
医药卫生引用本文复制引用
倪方方,王博林,宋腾蛟,袁小凤..纳米银颗粒的毒性效应及作用机制研究进展[J].中国药理学通报,2016,32(5):593-597,598,6.基金项目
浙江省医药卫生科技计划(No 201474286) （No 201474286）
浙江省自然科学基金资助项目(No LY16H280006) （No LY16H280006）
