中国卒中杂志 ›› 2022, Vol. 17 ›› Issue (03): 236-243.DOI: 10.3969/j.issn.1673-5765.2022.03.004 Association of CRP Gene rs3093068 Polymorphism

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CRP基因rs3093068位点多态性与缺血性卒中危险因素及卒中结局的相关性研究

石延枫, 程丝, 许喆, 刘阳, 李昊, 王拥军   

  1. 1  北京 100070首都医科大学附属北京天坛医院神经病学中心
    2  国家神经系统疾病临床医学研究中心卒中多组学创新中心
    3  首都医科大学卒中精准临床诊疗与研究中心
  • 收稿日期:2021-12-16 出版日期:2022-03-20 发布日期:2022-03-20
  • 通讯作者: 国家自然科学基金青年科学基金项目(82101359)
  • 基金资助:
    国家自然科学基金青年科学基金项目(82101359)

Association of CRP Gene rs3093068 Polymorphism with Ischemic Stroke Risk Factors and Stroke Outcome

  • Received:2021-12-16 Online:2022-03-20 Published:2022-03-20

摘要:

目的 探索CRP基因rs3093068位点多态性与缺血性卒中相关危险因素和卒中结局的相关性。 

方法 本研究基于中国国家卒中登记Ⅲ(China national stroke registry-Ⅲ,CNSR-Ⅲ)队列中的遗传亚组数据库,连续纳入2015年8月-2018年3月首次发生缺血性卒中或TIA的患者,收集人口学信息、病史、 hs-CRP、LDL-C和卒中结局等相关临床资料。使用竞争性等位基因特异性PCR(kompetitive allele-specific PCR,KASP)技术检测rs3093068位点的基因型分布,采用ANOVA、Kruskal-Wallis、χ 2检验或Fisher确切概率法分析不同基因型携带者已知危险因素的差异,采用logistic回归模型分析不同遗传模型下该位点基因多态性与1年随访卒中复发、联合血管事件以及不良功能结局(mRS≥3分)的相关性,并对卒中亚型进行分层分析。 

结果 共纳入7773例符合入组和排除标准的患者,其中GG基因型5334例(68.62%),GC基因型2196例(28.25%),CC基因型243例(3.13%)。rs3093068位点GG、GC、CC基因型患者的hs-CRP中位水 平分别为1.53(0.75~4.07)mg/L、2.04(1.00~5.14)mg/L、2.75(1.30~6.62)mg/L,不同基因型患者血液hs-CRP水平差异有统计学意义(P <0.001)。在校正年龄、性别、入院NIHSS和联合血管事件后, logistic回归分析显示该位点在加性和隐性模型下CC基因型与病因未明型卒中患者的不良功能结局相关(校正OR 2.19,95%CI 1.01~4.41;校正OR 2.29,95%CI 1.06~4.57);未发现该位点与其他危险因 素及其他卒中亚型结局的相关性。 

结论 CRP基因rs3093068位点CC基因型与患者的hs-CRP水平升高相关,并且与病因未明型缺血性卒中患者不良功能结局相关。

文章导读: 本研究系统分析了CRP基因rs3093068位点与卒中结局及危险因素的相关性,发现该位点与病因未明型卒中的不良功能结局之间存在相关性。

关键词: C反应蛋白; rs3093068; 位点多态性; 危险因素; 卒中结局; 关联分析

Abstract: Objective To investigate the relationship between rs3093068 polymorphism in CRP gene and ischemic stroke related risk factors and stroke outcome. Methods This study enrolled the consecutive patients with first-ever ischemic stroke or TIA from the genetic subgroup database of China national stroke registry-Ⅲ (CNSR-Ⅲ) from August 2015 to March 2018. The kompetitive allele-specific PCR technique was used to detect rs3093068 genotype. Differences in stroke related risk factors among carriers of different genotypes were analyzed by ANOVA, Kruskal-Wallis, chi-square or Fisher test. Logistic regression model was used to determine the association between rs3093068 polymorphism and 1-year outcomes of ischemic stroke under different genetic models. The 1-year outcomes included stroke recurrence, composite

vascular events and poor functional outcome (mRS≥3). Different stroke subtypes were analyzed.

Results A total of 7773 eligible patients were included in the final analysis, including 5334 (68.62%) with GG genotype, 2196 (28.25%) with GC genotype and 243 (3.13%) with CC genotype. The median levels of hs-CRP in patients with GG, GC and CC genotypes at rs3093068 genetic locus were 1.53 (0.75-4.07) mg/L, 2.04 (1.00-5.14) mg/L and 2.75 (1.30-6.62) mg/L, respectively. There was a statistical difference in the level of hs-CRP among patients with different genotypes (P <0.001). After adjusting for age, gender, admission NIHSS and composite vascular events, multivariate logistic regression analysis showed that the CC genotype under dominant and recessive models were associated with poor functional outcome of patients with stroke of other etiology (aOR 2.19, 95%CI 1.01-4.41; aOR 2.29, 95%CI 1.06-4.57). The association between CC genotype of rs3093068 and other stoke risk factors and outcomes of other subtype stroke were not found. Conclusions The CC genotype of rs3093068 in CRP gene was associated with higher hs-CRP level and poor functional outcome of stroke of other etiology.

Key words: C-reactive protein; rs3093068; Polymorphism; Risk factor; Stroke outcome; Association analysis