检验医学 ›› 2017, Vol. 32 ›› Issue (7): 597-602.DOI: 10.3969/j.issn.1673-8640.2017.07.009

• 临床应用研究_论著 • 上一篇    下一篇

广西地区胱抑素C及其单核苷酸多态性与冠心病的关系

黄胜贤, 郑利平, 杨兰, 陆俊佳, 朱旭   

  1. 南宁市第二人民医院,广西 南宁 530031
  • 收稿日期:2016-03-18 出版日期:2017-08-08 发布日期:2017-08-09
  • 作者简介:null

    作者简介:黄胜贤,男,1976年生,学士,副主任技师,主要从事临床检验工作。

  • 基金资助:
    基金项目:广西壮族自治区南宁市科技课题(2012137)

Relationship of cystatin C and single nucleotide polymorphisms with coronary heart disease in Guangxi

HUANG Shengxian, ZHENG Liping, YANG Lan, LU Junjia, ZHU Xu   

  1. Nanning Second People's Hospital,Nanning 530031,Guangxi,China
  • Received:2016-03-18 Online:2017-08-08 Published:2017-08-09

摘要:

目的 探讨广西地区胱抑素C(Cys C)水平及其基因位点+73A/G和-82G/C多态性与冠心病(CHD)的相关性。方法 选择壮族CHD患者、壮族体检健康者(壮族正常对照组)、汉族CHD患者和汉族体检健康者(汉族正常对照组)各100例,采用免疫比浊法检测血清Cys C水平,聚合酶链反应(PCR)-限制性片段长度多态性(RFLP)检测 Cys C +73A/G和-82G/C位点的基因多态性,同时收集一般临床资料。结果 CHD组与同民族正常对照组之间血清Cys C水平及一般临床资料差异均有统计学意义(P<0.05);CHD组Cys C +73A/G位点基因型频率与同民族正常对照组比较,差异均有统计学意义(P<0.05),且GG基因型的CHD患者Cys C水平明显低于AG和AA型(P<0.05),而AG与AA基因型之间差异无统计学意义(P>0.05)。CHD组血清Cys C水平与肌酐(Cr)水平、Cys C +73A/G基因位点呈正相关(r = 0.60,P<0.01;r =0.42,P<0.01)。结论 CHD患者肾功能下降引起的Cys C水平升高掩盖了Cys C +73A/G基因多态性所致的低Cys C水平。Cys C +73A/G基因多态性所致的低Cys C水平可能是广西地区人群CHD的易感因素。

关键词: 胱抑素C, 基因多态性, 汉族, 壮族, 冠心病

Abstract:

Objective To investigate the relationship of cystatin C (Cys C) and +73A/G and -82G/C single nucleotide polymorphisms with coronary heart disease (CHD) in Guangxi. Methods Serum levels of Cys C in Zhuang CHD patients,Zhuang healthy subjects,Han CHD patients and Han healthy subjects(100 cases for each group) were determined by immunoturbidimetric assay,and +73A/G and -82G/C single nucleotide polymorphisms were determined by polymerase chain reaction(PCR)-restriction fragment length polymorphism (RFLP). The clinical information was collected. Results Serum Cys C levels and clinical information between CHD patients and healthy subjects had statistical significance (P<0.05). The frequency of Cys C +73A/G polymorphism in CHD patients had statistical significance with that in healthy subjects(P<0.05). Serum Cys C levels in CHD patients with GG genotype were lower than those with AG and AA genotypes(P<0.05). There was no statistical significance between AG and AA genotypes (P>0.05) . Serum levels of Cys C had positive correlations with creatinine (Cr) levels and Cys C +73A/G polymorphism in CHD patients(r =0.60,P<0.01;r =0.42,P<0.01). Conclusions The increasing of serum Cys C levels caused by the decreasing of renal function covers the low levels of Cys C caused by Cys C +73A/G polymorphism. The polymorphism of Cys C +73A/G Polymorphism resulting low-level Cys C may be a risk factor for CHD in Guangxi.

Key words: Cystatin C, Polymorphism, Han population, Zhuang population, Coronary heart disease

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