Purpose. Large artery atherosclerosis (LAA) ischemic stroke (IS) is the most common IS subtype, and microemboli are clinically\nimportant for indicating an increased risk of IS. Nucleotide-binding domain-like receptor protein 3 (NLRP3) plays a crucial role\nin the pathogenesis of atherosclerosis. The aim of this study is to investigate the relationship between NLRP3 gene polymorphisms\nand susceptibility for LAA IS and microembolic signals (MES) in the Chinese Han population. Methods. We studied 293 patients\ndiagnosed with LAAIS and 265 controls.TranscranialDoppler (TCD) was used tomonitor theMESin all of the patients.Depending\non the presence or absence of MES, the patients were divided into MES-positive and MES-negative subgroups. PCR-RFLP or direct\nsequencingwere used to analyze threeNLRP3 gene polymorphisms. Results. Seventy-six patients presentedwith MES and the MESpositive\nrate was 25.94%. Logistic regression analysis showed that the TT genotype frequency for the rs4612666 gene polymorphism\nwas higher in study patients than in the controls (adjusted
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