Restricted accessResearch articleFirst published online 2021-7
Association of Bgl II Polymorphism in ITGA2 and (894G/T and −786T/C) Polymorphisms in eNOS Gene With Stroke Susceptibility in Tunisian Patients α2 Gene Polymorphism in α2β1 Integrin and eNOS Gene Variants and Stroke
This study investigated the association of BglII polymorphism in α2β1 integrin gene (ITGA2) and eNOS (894G/T and –786T/C) polymorphisms with ischemic stroke (IS) in Tunisian patients.
Methods:
The study comprised 210 patients with IS and 208 controls. The genotypes of the BglII polymorphism in ITGA2 and eNOS (894G/T and –786T/C) polymorphisms were determined using the PCR-RFLP. The χ2 test was used and the genotype data comparison included heterozygous groups. Haplotype estimation and multiple logistic regression analysis were performed to analyze the significance of polymorphisms.
Results:
The genotype distribution of the BglII polymorphism was significantly different between cases and controls (p < 0.004). This polymorphism was associated with the risk of IS (OR = 3.38, p < 0.001) for the BglII(+/+) genotype. Likewise, the genotype distributions of eNOS (894G/T and –786T/C) polymorphisms were significantly different between the two groups (p < 0.005 and p < 0.01, respectively). The 894G/T polymorphism increased the risk of IS for the TT genotype (OR = 2.23, p < 0.008) and the GT genotype (OR = 1.74, p < 0.009). In addition, the –786T/C variant in the eNOS gene was a risk factor for IS for CC homozygous (OR = 2.52, p < 0.005). T-C Haplotype (OR = 3.06) from combination of the eNOS (894G/T and –786T/C) and T-C-BglII(+) haplotype (OR = 2.76) from combination of eNOS and ITGA2 polymorphisms represented high risks for IS.
Conclusions:
This study suggests that the BglII variant in ITGA2 is associated with IS susceptibility. Furthermore, the 894G/T and –786T/C polymorphisms in the eNOS gene may be considered as genetic risk factors for IS in the Tunisian population.
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