【摘要】 为研究母亲环氧化物水解酶１基因（ＥＰＨＸ１）多态性与新生儿出生体重间关系。收集了某纺织厂３４２名女工的资料，用ＰＣＲ－限制性片段长度多态性法分析母亲ＥＰＨＸ１基因型，采用多元线性逐步回归模型分析母亲ＥＰＨＸ１多态性与新生儿出生体重关系。结果发现调整主要混杂因素后ＥＰＨＸ１的Ｈｉｓ１３９Ａｒｇ／Ａｒｇ１３９Ａｒｇ基因型与新生儿出生体重有显著性相关（β±ＳＥ＝－１４９ｇ ± ５６，Ｐ＝— ０．００８３）。经被动吸烟分层分析，结果显示：仅在有被动吸烟史人群中ＥＰＨＸ１的Ｈｉｓ１３９Ａｒｇ／Ａｒｇ１３９Ａｒｇ基因型与新生儿出生体重有显著性相关，（β±ＳＥ＝－ ２３４ｇ ± ８８，Ｐ＝ ０．００８８）；而根据工作紧张程度分层分析后发现，仅在有工作紧张史人群中发现ＥＰＨＸ１的Ｈｉｓ１３９Ａｒｇ／Ａｒｇ１３９Ａｒｇ基因型与新生儿出生体重有显著性相关（β±ＳＥ＝－ １５７ｇ ±ｔ ５９， Ｐ＝ ０．００７９）。我们的结果显示母亲 ＥＰＨＸ１多态性与新生儿出生体重有显著性相关，并存在基因－环境的交互作用。更多还原

【Abstract】 We investigated association between genetic polymorphisms of EPHX1 in mother and infant birthweight. Data of 342 female workers were collected in textile mill. A total of 342 mothers were genotyped for the His139Arg polymorphism of EPHX1 by a polymerase chain reaction-restriction fragment length polymorphism assay. Using multiple linear regression models, we estimated the adjusted association between polymorphisms of EPHX1 and birthweight, with adjusted for potential confounders. We found that polymorphisms of EPHX1 were closely associated with reduced birthweight （β±ＳＥ＝－１４９ｇ ± ５６，Ｐ＝— ０．００８３） after adjustment for major cofounders. In subgroup of passive smoking analysis, the polymorphisms of EPHX1 were highly associted with birthweight for those with passive smoking （β±ＳＥ＝ － ２３４ｇ ± ８８，Ｐ＝ ０．００８８）; The significant association of EPHX1 polymorphisms with reduced birthweight were showed for those with working stress （β±ＳＥ＝－ １５７ｇ ±ｔ ５９， Ｐ＝ ０．００７９）. Our data Provide polymorphisms of EPHX1 in mothers were significant association with birthweight of their infant and showed gene-enviromental interaction in relation to birthweight更多还原