Am J Hypertens:子痫前期可能与原发性高血压无关

2015-05-24 MedSci MedSci原创

怀孕前血压正常的孕妇在妊娠20周以后出现高血压、蛋白尿,称子痫前期,或称为先兆子痫。是妊娠期高血压疾病的五种状况之一,为妊娠期特发疾病,可影响机体各器官系统。发病率约占全部妊娠的3.9%。子痫前期的流行病学调查表明,该疾病具体遗传易感性的特征,但是子痫前期是否是原发性高血压潜在的遗传风险引起的结果还尚不明确有待调查。因为子痫前期的一个特征是高血压的情况。近期Smith CJ等人进行了一项研究探究高

怀孕前血压正常的孕妇在妊娠20周以后出现高血压、蛋白尿,称子痫前期,或称为先兆子痫。是妊娠期高血压疾病的五种状况之一,为妊娠期特发疾病,可影响机体各器官系统。发病率约占全部妊娠的3.9%。

子痫前期的流行病学调查表明,该疾病具体遗传易感性的特征,但是子痫前期是否是原发性高血压潜在的遗传风险引起的结果还尚不明确有待调查。因为子痫前期的一个特征是高血压的情况。近期Smith CJ等人进行了一项研究探究高血压和血压的遗传风险评分(GRSs)与子痫前期的关系。

该研究纳入了163名子痫前期孕妇和108名血压正常的孕妇作为对照组,所有参与者均居住在爱荷华州。研究者通过参与者的口腔拭子样本获取其DNA,使用昂飞人类全基因组SNP 6.0基因芯片(Affymetrix, Santa Clara, CA)检测参与者的基因型。通过MaCH 和Minimac软件对缺失基因型进行估计。研究者通过高血压、收缩压(SBP)、舒张压(DBP)和平均动脉压(MAP)的相关遗传风险基因位点计算各个结局对应的GRSs值。再通过回归分析探究GRS和子痫前期风险之间的联系。该研究进行了重复,纳入了一个独立的美国人口的516例病例和516例对照欧洲血统。

研究结果显示,高血压、收缩压(SBP)、舒张压(DBP)和平均动脉压(MAP)的遗传风险评分(GRSs)与子痫前期的关联均没有显著的统计学意义(P > 0.189)。重复试验分析结果依旧得出的是两者间无关联。

研究结果表明,高血压和血压的遗传风险评分(GRSs)与子痫前期的发生或风险没有相关性,即是说原发性高血压的因果路径可能不是子痫前期的原因。

原始出处:

Smith CJ, Saftlas AF, Spracklen CN, et al. Genetic Risk Score for Essential Hypertension and Risk of Preeclampsia. Am J Hypertens. 2015 .

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    2015-11-24 feather89
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    2015-05-26 yahu
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    2015-05-25 huaxipanxing

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