Key result
The TT genotypes of IL-1b-3953 C>T and MMP-9-1562C>T polymorphisms were significantly associated with protection against myocardial infarction (OR 0.18 and OR 0.01, respectively).
Why the study?
Do IL-1b-3953 C>T and MMP-9-1562C>T gene variants affect myocardial infarction susceptibility in an Iranian population?
Case-Control (n=237)
Do IL-1b-3953 C>T and MMP-9-1562C>T gene variants affect myocardial infarction susceptibility in an Iranian population?
The minor alleles of the IL-1b-3953 C>T and MMP-9-1562C>T polymorphisms are associated with a protective effect against myocardial infarction in the Iranian population.
AIMS: IL-1b-3953 C>T and MMP-9-1562C>T variants have been shown to be linked to the development of myocardial infarction (MI), although previous studies have reported inconsistent results. The aim of the present study was to determine whether these genetic variations are associated with MI susceptibility in an Iranian population. METHODS: In the current study, 117 patients with MI and 120 control group members were selected as participants. Peripheral blood samples were taken from all the subjects for genomic DNA extraction. Single nucleotide polymorphism (SNP) genotyping was performed by polymerase chain reaction-restriction fragment length polymorphism (PCR-RFLP) assays. RESULTS: Multiple logistic regression analysis revealed that the TT genotype of the IL-1b-3953 C>T polymorphism is associated with a significant MI protective effect in: the homozygote model after adjustment for MI risk factors (odds ratio [OR]: 0.18, confidence interval [95% CI] = 0.04-0.72; p = 0.01); and also in the recessive genetic model both before (OR: 0.39, 95% CI: 0.15-0.96, p = 0.04) and after (OR: 0.15, 95% CI: 0.04-0.58, p = 0.006) adjustment for MI risk factors. Furthermore, multiple logistic regression analysis indicated that the individuals with the TT genotype of the MMP-9-1562C>T polymorphism were significantly protected against MI in comparison with the CC genotype (OR: 0.01, 95% CI: 0.002-0.68, p = 0.03). CONCLUSION: The findings suggest that the minor alleles of the two polymorphisms under study both have protective effects with respect to MI susceptibility in the Iranian population.
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Daraei et al. (2016) conducted a case-control in Myocardial infarction (n=237). IL-1b-3953 C>T and MMP-9-1562C>T gene variants vs. CC genotype was evaluated on Myocardial infarction susceptibility (IL-1b-3953 C>T TT genotype, adjusted homozygote model) (OR 0.18, 95% CI 0.04-0.72, p=0.01). The TT genotypes of IL-1b-3953 C>T and MMP-9-1562C>T polymorphisms were significantly associated with protection against myocardial infarction (OR 0.18 and OR 0.01, respectively).
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