Human variability and susceptibility to trichloroethylene.

Human variability and susceptibility to trichloroethylene.
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DOI:
10.1289/ehp.00108s2201
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发表时间:
2000-05
影响因子:
10.4
通讯作者:
Carroquino M
Carroquino M
中科院分区:
环境科学与生态学1区
文献类型:
--
作者:
Pastino GM;Yap WY;Carroquino M

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虽然人类对化学品的反应各不相同,但一般没有将敏感性的综合衡量标准纳入人类风险评估。美国EPA基于剂量-反应的癌症风险评估和非癌症风险评估的RfD/RfC(参考剂量-参考浓度)方法被认为是保护脆弱的人类亚群。然而,这些方法通常依赖于默认假设,并且不考虑对给定毒物的潜在敏感性的特定生物学基础。为了更明确地关注这个问题,本文讨论了可能影响人类变异性和对三氯乙烯(TCE)(一种广泛使用的卤化工业溶剂)敏感性的生物因素。第13045号行政命令要求联邦机构在执行其政策时将保护儿童作为高度优先事项,并在制定标准时考虑到儿童面临的特殊风险,针对这一要求,本文探讨了可能影响儿童接触三氯乙烯风险的因素。遗传,性别,改变健康状况,共同暴露于酒精,和酶诱导TCE毒性的影响也进行了检查。
Although humans vary in their response to chemicals, comprehensive measures of susceptibility have generally not been incorporated into human risk assessment. The U.S. EPA dose-response-based risk assessments for cancer and the RfD/RfC (reference dose-reference concentration) approach for noncancer risk assessments are assumed to protect vulnerable human subgroups. However, these approaches generally rely on default assumptions and do not consider the specific biological basis for potential susceptibility to a given toxicant. In an effort to focus more explicitly on this issue, this article addresses biological factors that may affect human variability and susceptibility to trichloroethylene (TCE), a widely used halogenated industrial solvent. In response to Executive Order 13045, which requires federal agencies to make protection of children a high priority in implementing their policies and to take special risks to children into account when developing standards, this article examines factors that may affect risk of exposure to TCE in children. The influence of genetics, sex, altered health state, coexposure to alcohol, and enzyme induction on TCE toxicity are also examined.
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