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中华诊断学电子杂志 ›› 2022, Vol. 10 ›› Issue (03) : 171 -176. doi: 10.3877/cma.j.issn.2095-655X.2022.03.005

基因诊断

组织蛋白酶B基因启动子多态性与急性心肌梗死发病的关系
孔倩1, 白冠男2, 周瑜1, 闫波3,()   
  1. 1. 272013 济宁医学院临床医学院
    2. 250012 济南,山东大学齐鲁医学院
    3. 272029 济宁,山东省心脏疾病诊疗重点实验室
  • 收稿日期:2022-04-09 出版日期:2022-08-26
  • 通信作者: 闫波
  • 基金资助:
    国家自然科学基金(81870279)

Correlation between CTSB gene promoter region polymorphism and clinical features in patients with acute myocardial infarction

Qian Kong1, Guannan Bai2, Yu Zhou1, Bo Yan3,()   

  1. 1. College of Clinical Medicine, Jining Medical University, Jining 272013, China
    2. Cheeloo College of Medicine, Shandong University, Jinan 250012, China
    3. Shandong Provincial Laboratory of Cardiac Disease Diagnosis and Treatment, Affiliated Hospital of Jining Medical University, Jining 272029, China
  • Received:2022-04-09 Published:2022-08-26
  • Corresponding author: Bo Yan
引用本文:

孔倩, 白冠男, 周瑜, 闫波. 组织蛋白酶B基因启动子多态性与急性心肌梗死发病的关系[J]. 中华诊断学电子杂志, 2022, 10(03): 171-176.

Qian Kong, Guannan Bai, Yu Zhou, Bo Yan. Correlation between CTSB gene promoter region polymorphism and clinical features in patients with acute myocardial infarction[J]. Chinese Journal of Diagnostics(Electronic Edition), 2022, 10(03): 171-176.

目的

探讨急性心肌梗死(AMI)与组织蛋白酶B(CTSB)基因启动区rs1293312 T/C位点单核苷酸多态性(SNP)之间的关系及其相关危险因素。

方法

采用病例-对照研究方法,选择2021年1月至12月于济宁医学院附属医院心内科住院的201例AMI患者(AMI组)和同期体检中心健康体检者204例(对照组);应用聚合酶链反应-限制性片段长度多态性(PCR-RELP)结合DNA测序后的序列比对进行数据统计;运用Hardy-Weinberg平衡检验后,应用χ2检验进行相关分析;利用多因素Logistic回归对多种危险因素以及该SNP位点与AMI发病进行关联性分析;利用SNPinfo数据库预测该SNP位点所影响的转录因子结合位点。

结果

两组rs1293312 T/C位点SNP位点分别检测出3种基因型为CC、TC和TT,其基因型分布均符合Hardy-Weinberg平衡(χ2=0.57,1.68;均P>0.05)。CC、TC、TT基因型在AMI组[34(16.92%)、91(45.27%)、76(37.81%)]和对照组[37(18.14%)、89(43.63%)、78(38.23%)]间,以及C、T等位基因在AMI组[159(39.55%)、243(60.45%)]和对照组[163(39.95%)、245(60.05%)]间比较,均差异无统计学意义(χ2=0.15,0.01;均P>0.05)。在5种不同遗传模式下进行Logistic回归分析发现,该SNP位点与AMI发病无关联性(均P>0.05)。

结论

CTSB基因启动区rs1293312 T/C与AMI发病无关,但提供了CTSB基因启动区多态性的群体遗传学资料。

Objective

To investigate the relationship between acute myocardial infarction (AMI) and single nucleotide polymorphism (SNP) of cathepsin B(CTSB) gene promoter region rs1293312T/C site and the associated risk factors.

Methods

A case-control study was performed to collect 201 AMI patients (AMI group) hospitalized in the Department of Cardiology, Affiliated Hospital of Jining Medical University from January 2021 to December 2021, and 204 healthy controls (control group) in the physical examination center. Following DNA sequencing data were analyzed by polymerase chain reaction-restriction fragment length polymorphism (PCR-RELP) technique combined with sequence alignment. Following the Hardy-Weinberg balance test, the χ2 test was used for correlation analysis. Logistic regression was utilized to examine the relationship between various risk variables, SNP loci and the incidence of AMI.

Results

The SNP loci revealed three genotypes, including CC, CT and TT. Hardy-Weinberg equilibrium (χ2=0.57, 1.68, all P>0.05) and the genotype distribution were both supported by the data. There were no significant differences (χ2=0.15, 0.01, all P>0.05) between the CC, TC, TT genotypes of the AMI group [34(16.92%), 91(45.27%), 76(37.81%)] and the control group [37(18.14%), 89(43.63%), 78(38.23%)], as well as the C and T alleles of the AMI group [159(39.55%), 243(60.45%)] and control group [163(39.95%), 245(60.05%)]. Logistic regression analysis in five different genetic models suggested that the SNP loci was not associated with the onset of AMI (all P>0.05).

Conclusion

The population genetics of the CTSB gene promoter region polymorphism is provided by the CTSB gene promoter rs1293312 T/C SNP, which is not related to the onset of AMI.

图1 急性心肌梗死患者和体检人群CTSB基因测序结果峰图注:a图为正常序列TT型;b图为纯合子突变序列CC型;c图为杂合子突变序列TC型,SNP位点由T突变为C(箭头所示);CTSB为组织蛋白酶B
表1 rs1293312 T/C PCR引物序列表
表2 AMI组与体检人群临床资料的比较
表3 CTSB基因启动区SNP位点在AMI组和体检人群中基因型及等位基因频率分布(例,%)
表4 AMI相关危险因素的多因素Logistic回归分析
表5 CTSB基因启动区rs1293312 T/C与AMI发病的Logistic回归分析(例,%)
表6 受rs1293312 T/C影响的转录因子预测结合位点
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