癌变·畸变·突变 ›› 2018, Vol. 30 ›› Issue (4): 307-309,314.doi: 10.3969/j.issn.1004-616x.2018.04.012

• 论著 • 上一篇    下一篇

细颗粒物对斑马鱼胚胎发育的影响

吴德生1, 王宏辉1, 袁建辉1,2, 王宏菊3, 赵琼辉3, 刘建军1   

  1. 1. 深圳市疾病预防控制中心毒理研究所, 现代毒理学重点实验室, 广东 深圳 518055;
    2. 深圳市南山区疾病预防控制中心, 广东 深圳 518054;
    3. 深圳市出入境检验检疫局, 广东 深圳 518045
  • 收稿日期:2017-04-18 修回日期:2018-04-23 出版日期:2018-07-30 发布日期:2018-07-30
  • 通讯作者: 袁建辉,E-mail:jianhui_yuan@126.com E-mail:jianhui_yuan@126.com
  • 作者简介:吴德生,E-mail:dswucn@126.com
  • 基金资助:
    深圳市科技研发资金资助项目(JCYJ20170306160857772,JSGG20170414104216477,JCYJ20160328161613864,JCYJ20160328144536436)

Effect of fine particle exposure on development of zebrafish embryos

WU Desheng1, WANG Honghui1, YUAN Jianhui1,2, WANG Hongju3, ZHAO Qionghui3, LIU Jianjun1   

  1. 1. Key Laboratory of Modern Toxicology of Shenzhen, Institute of Toxicology, Shenzhen Center for Disease Control and Prevention, Shenzhen 518055;
    2. Shenzhen Nanshan District Center for Disease Control and Prevention, Shenzhen 518054;
    3. Shenzhen Entry-exit Inspection and Quarantine Bureau, Shenzhen 518045, Guangdong, China
  • Received:2017-04-18 Revised:2018-04-23 Online:2018-07-30 Published:2018-07-30

摘要: 目的:探讨细颗粒物对斑马鱼胚胎发育的影响。方法:采集深圳市某小学楼顶雾霾天气的大气细颗粒物样本,将斑马鱼胚胎暴露于不同浓度的细颗粒物(0、5、20、80、320、800 μg/mL)混悬溶液中,在不同时间(0、2、4、6、8、16、24、48、72、96 h)于体式显微镜下观察斑马鱼胚胎的孵化与存活情况。结果:与对照组相比,细颗粒物暴露48 h后,各剂量组均有胚胎死亡发生,并且在80、320、800 μg/mL剂量组胚胎死亡率明显升高(死亡率均为100%),而胚胎孵化率则呈现随着剂量升高而降低的趋势,其中80 μg/mL剂量组有较多胚胎出现不出膜现象,800 μg/mL剂量组的胚胎在染毒48 h后全部死亡。经统计分析,细颗粒物对斑马鱼胚胎的半数致死量为(56.6±2.8)μg/mL。结论:细颗粒物可能影响斑马鱼胚胎发育,导致孵化失败和死亡。

关键词: 细颗粒物, 斑马鱼, 胚胎发育, 大气污染

Abstract: OBJECTIVE: To investigate effect from exposure to fine particles on development of zebrafish embryos. METHODS: Zebrafish embryos were exposed to different concentrations (0,5,20,80,320 and 800 μg/mL) of fine particles for 96 h. Their survival and hatchability were observed under stereoscopic microscope at 0,2,4,6,8,16,24,48,72,96 h after the exposures. RESULTS: Compared with the control group,increased embryo mortality was observed in each of the treatment groups at 48 h after exposure,especially in the 80,320,800 μg/mL groups. Embryo hatchability was decreased with increased fine particle concentrations. Embryos did not hatched well in the 80 μg/mL group,and all embryos died in the 320,800 μg/mL groups at 48 h after exposure. Median lethal dose (LD50) of fine particles to zebrafish embryos was calculated to be (56.6±2.83) μg/mL. CONCLUSION: Exposure to fine particles caused death and hatching failure in zebrafish embryos.

Key words: fine particles, zebrafish, embryo development, air pollution

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