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

• Orginal Article • Previous Articles     Next Articles

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

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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