早期类风湿关节炎PTPN22 R620W基因与ACPA呈相关性

2011-08-03 MedSci原创 MedSci原创

来源:医学论坛网   法国一项最新研究表明,在早期类风湿关节炎患者中,PTPN22 R620W危险等位基因与抗瓜氨酸化蛋白抗体(ACPA)具有相关性,并提示环境因素在RA典型异质性中发挥核心作用。该研究论文7月13日在线发表于《风湿病学》(Rheumatology)杂志。   该研究为一项内部队列研究(Intra-cohort study),共纳入532例高加索裔RA患者,

来源:医学论坛网

  法国一项最新研究表明,在早期类风湿关节炎患者中,PTPN22 R620W危险等位基因与抗瓜氨酸化蛋白抗体(ACPA)具有相关性,并提示环境因素在RA典型异质性中发挥核心作用。该研究论文7月13日在线发表于《风湿病学》(Rheumatology)杂志。

  该研究为一项内部队列研究(Intra-cohort study),共纳入532例高加索裔RA患者,基因型表现为PTPN22 rs2476601多态性。研究收集了抗环瓜氨酸肽抗体(CCP)和类风湿因子(RF)基线水平状况、骨侵蚀1年状况、人白细胞抗原DR1和/或DR4状况,人口统计情况、并发症情况、烟草累积量(包-年)暴露状况、RA患者接受激素治疗及接受其他治疗情况,并采用Logistic回归评估比值比(OR)及校正混杂因素后的倍增相互作用。

  结果显示,PTPN22 R620W危险等位基因与抗瓜氨酸化蛋白抗体(ACPA)具有相关性[OR=2.21,95%可信区间(CI)为1.4~3.4,P<0.0001]。研究发现,激素治疗和吸烟对抗ACPA(OR=0.44,95%CI为0.3~0.7,P=0.001)和早期骨侵蚀(OR=0.56,95%CI为0.4~0.8,P=0.003)都具有保护作用,而这种保护作用并不依赖于HLADR和PTPN22状况。该研究未发现基因-环境间相互作用的证据。

相关链接:PTPN22 R620W genotype–phenotype correlation analysis and gene–environment interaction study in early rheumatoid arthritis: results from the ESPOIR cohort

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    2011-09-30 waiwai3042
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    2011-09-18 839640787
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    2011-08-05 lmm397
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