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Combination of susceptibility gene and traditional risk factors might enhance the performance of coronary heart disease screening strategy.

ABSTRACT: Coronary heart disease (CHD) associated risk factors and susceptibility genes were studied in parallel for decades, however, the combination of the classic CHD risk factors and genetic risk factors has been rarely studied. Previously; we reported that a single nucleotide polymorphism (SNP) in the stromal cell-derived factor 1 (SDF-1) gene was associated with CHD risk; in addition, we also established a CHD screening strategy using traditional CHD risk factors as independent variables. To explore how to combine genetic factors and traditional risk factors in CHD screening strategy, the CHD probabilities were tested in 218 males and 121 females according to their stromal cell-derived factor 1 (SDF-1) genotypes using CHD screening equations we reported previously. The genotypes had not altered the distribution characteristics of age, high-density lipoprotein cholesterol (HDL-C), triglyceride (TG), lipoprotein(a) (LP(a)), homocysteine (HCY) and total bilirubin (TBil) in males and age, HDL-C, HCY and ?-glutamyl transpeptidase (GGT) in females among genotypes. However, the mean CHD probability of subjects with G/G genotype was significantly higher than that of subjects with A/A genotype (0.51 ± 0.35 vs. 0.31 ± 0.31, P = 0.035). The mean CHD probability of subjects with G homozygous and G heterozygote was 0.48 ± 0.34 which displayed a difference trend to that of subjects with A homozygous (0.31 ± 0.31, P = 0.059). Our data suggested that genetic risk factors might be used as a classification standard to improve current CHD screening strategies.

SUBMITTER: Nian S

PROVIDER: S-EPMC5620315 | biostudies-literature | 2017 Sep

REPOSITORIES: biostudies-literature

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Combination of susceptibility gene and traditional risk factors might enhance the performance of coronary heart disease screening strategy.

Nian Shiyan S Feng Lei L Zhao Yang Y Luo Feng F Zhang Shu S Li Dan D Xu Wenbo W Zhang Xingfeng X Ye Dan D Bai Xuejing X

Oncotarget 20170329 40

Coronary heart disease (CHD) associated risk factors and susceptibility genes were studied in parallel for decades, however, the combination of the classic CHD risk factors and genetic risk factors has been rarely studied. Previously; we reported that a single nucleotide polymorphism (SNP) in the stromal cell-derived factor 1 (SDF-1) gene was associated with CHD risk; in addition, we also established a CHD screening strategy using traditional CHD risk factors as independent variables. To explore ...[more]

PMID: 28978175

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Project description:OBJECTIVES: General population studies have shown associations between copy number variation (CNV) of the LPA gene Kringle-IV type-2 (KIV-2) coding region, single-nucleotide polymorphism (SNP) rs6415084 in LPA and coronary heart disease (CHD). Because risk factors for HIV-infected patients may differ from the general population, we aimed to assess whether these potential associations also occur in HIV-infected patients. METHODS: A unicenter, retrospective, case-control (1:3) study. Eighteen HIV-patients with confirmed diagnosis of acute myocardial infarction (AMI) were adjusted for age, gender, and time since HIV diagnosis to 54 HIV-patients without CHD. After gDNA extraction from frozen blood, both CNV and SNP genotyping were performed using real-time quantitative PCR. All genetic and non-genetic variables for AMI were assessed in a logistic regression analysis. RESULTS: Our results did not confirm any association in terms of lipoprotein(a) LPA structural genetic variants when comparing KIV-2 CNV (p = 0.67) and SNP genotypes (p = 0.44) between AMI cases and controls. However, traditional risk factors such as diabetes mellitus, hypertension, and CD4(+) T cell count showed association (p < 0.05) with CHD. CONCLUSION: Although significant associations of AMI with diabetes, hypertension and CD4(+) T cell count in HIV-patients were found, this study could not confirm the feasibility neither of KIV-2 CNV nor rs6415084 in LPA as genetic markers of CHD in HIV-infected patients. HIGHLIGHTS: ? Individuals with HIV infection are at higher risk of coronary heart disease (CHD) than the non-infected population.? Our results showed no evidence of LPA structural genetic variants associated with CHD in HIV-1-infected patients.? Associations were found between diabetes mellitus, arterial hypertension, CD4(+) T cell count, and CHD.? The clinical usefulness of these biomarkers to predict CHD in HIV-1-infected population remains unproven.? Further studies are needed to assess the contribution of common genetic variations to CHD in HIV-infected individuals.

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Combination of susceptibility gene and traditional risk factors might enhance the performance of coronary heart disease screening strategy.

Publications

Combination of susceptibility gene and traditional risk factors might enhance the performance of coronary heart disease screening strategy.

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