Chin J Schisto Control ›› 2016, Vol. 28 ›› Issue (2): 172-177.

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Meta regression analysis of five heavy metal biotoxicity effects on Caenorhabditis elegans

HUANG Yue-e 1, 2 ,LI Chao-pin1, 3* , ZHANG Nan4   

  1. 1 School of Earth and Environment,Anhui University of Science and Technology,Huainan 232002,China;2 School of Public Health,Wannan Medical College,China;3 School of Basic Medicine,Wannan Medical College,China;4 Wuhu Environmental Monitoring Center,Anhui Province, China
  • Online:2016-04-19 Published:2016-04-20
  • Contact: LI Chao?pin

5种重金属暴露对秀丽线虫生物毒性效应的Meta回归分析

黄月娥1,2,李朝品1,3*,张楠4   

  1. 1 安徽理工大学地球与环境学院 (淮南 232001);2 皖南医学院公共卫生学院; 3 皖南医学院基础医学院; 4安徽省芜湖市环境监测 中心站
  • 通讯作者: 李朝品
  • 作者简介:黄月娥, 女, 博士研究生, 教授。研究方向: 环境毒理学与病原生物学
  • 基金资助:
    国家自然科学基金(81270091); 安徽省自然科学基金(1608085MH220); 活性生物大分子研究安徽省重点实验室项目 (LAB201406); 安徽省芜湖市科技计划重点项目 (2014cxy08)

Abstract: Objective Objective To evaluate five heavy metal biotoxicity effects on Caenorhabditis elegans with Meta regression anal? ysis. Methods Methods The data were collected from the following electronic databases:PubMed, Web of Science,EBSCO,the Chi? nese Biomedical Database,Chinese National Knowledge Infrastructure,Wan Fang(Chinese)Databases and so on,and all up? dated through January 2004 to December 2014. A literature review was made on articles about Cd,Hg,Pb,As and Cr toxicity effects on C. elegans,and the data was extracted from figure information by Scan It software. A Meta regression model was built by stata12.0 software,using toxicity indices such as the dependent variables,and different metals,concentrations,exposure time,and development stages of C. elegans as independent variables. Results Results The study articles asociated with heavy metal biotoxicity effects on C. elegans were selected out,10 studies of Cu,12 studies of Cr,12 studies of Pb,12 studies of Cd,3 studies of As and 14 studies of Hg. The mortality of toxicities of 5 heavy metals on C. elegans ranked Hg > Pb > Cr> Cd>As;the biotoxicity of the indexes of body size based on development,generational time based on reproductive toxicity,body bend fre? quencies,and head thrash frequencies based on neurotoxicity ranked Hg > Pb > Cr > Cd;the biotoxicity ranked Hg > Pb > Cr> Cd>As by LC50 indexes of toxicities of 5 heavy metals on C. elegans. The sensitivity analysis proved that the Meta regression model was reliable. Conclusion Conclusion The biotoxicities on C. elegans of Hg and Pb are stronger than Cr,Cd and As.

Key words: Heavy metal, Biotoxicity, Caenorhabditis elegans, Meta regression analysis

摘要: 目的 目的 评价5种重金属暴露对秀丽线虫的生物毒性效应。方法 方法 以秀丽线虫、 重金属等为关键词检索 PubMed、 Web of Science、 EBSCO、 中国知网、 万方等国内外数据库, 检索时间为2004?01-2014?12, 按照文献纳入和排除标 准筛选关于镉 (Cd)、 汞 (Hg)、 铅 (Pb)、 砷 (As)、 铬 (Cr) 及铜 (Cu) 暴露对秀丽线虫毒性效应的文献。提取文献中相关数据, 以秀丽线虫的毒性指标终点为因变量, 不同金属种类、 暴露浓度、 暴露时间等为自变量, 采用Meta回归分析比较5种重金 属暴露对秀丽线虫的生物毒性效应。结果 结果 根据文献纳入和排除标准, 最终筛选出有关Cu暴露对秀丽线虫生物毒性的 文献10 篇、 有关Cr的文献12篇、 有关Pb的文献12篇、 有关Cd的文献10 篇、 有关As的文献3 篇、 有关Hg的文献14 篇。 Meta回归分析显示, 以Cu为参照, 5种重金属对秀丽线虫致死率排序为Hg > Pb > Cr > Cd > As, 回归模型校正决定系数 为0.600 8; 基于发育影响的体长指标、 基于生殖毒性的世代时间指标、 基于神经毒性的身体弯曲度指标和头部摆动频率 指标的毒性效应排序均为Hg > Pb > Cr > Cd, 回归模型校正决定系数分别为0.888 4、 0.538 6、 0.698 6和0.747 1; 根据LC50 指标, 各重金属对线虫毒性效应排序为Hg > Pb > Cr > Cd > As。敏感性分析显示, Meta回归分析结果较为稳定。结论 结论 Hg、 Pb对秀丽线虫的生物毒性效应强于Cr、 Cd和As。

关键词: 重金属, 生物毒性, 秀丽线虫, Meta回归分析

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