Correlation study of CXCL16 gene rs3744700 polymorphisms and cerebral infarction subtypes / 中国脑血管病杂志

ABSTRACT

Objective: To study the correlation between the serum chemokine CXC Ligand 16 (CXCL16) levels or the CXCL16 gene rs3744700 polymorphisms and TOAST subtypes in patients with acute cerebral infarction. Methods: A total of 248 patients with atherosclerotic cerebral infarction within 7 days after symptom onset were selected, among them 149 patients were in a large artery atherosclerotic (LAA) cerebral infarction group, and 99 patients were in a small arterial occlusive (SAO) cerebral infarction group. The polymerase chain reaction (PCR) and gene sequencing were used to detect the genotypes. An enzyme-linked immunosorbent assay was used to detect the serum CXCL16 levels. Results: Circled digit oneSerum CXCL16 level in the LAA cerebral infarction group was 2.5 ± 0.3 μm/L and in the SAO cerebral infarction group were 2.3 ± 0.6 μg/L (P<0.01). Circled digit twoAmong the 149 patients in the LAA cerebral infarction group, the GG genotype frequency at polymorphic loci of CXCL16 gene rs3744700 was 91.9% (137/149) and the G allele frequency was 96.0% (286/298). They were higher than 81.8% and 89.9% in the SAO cerebral infarction group. There were significant differences (P < 0.05). Circled digit threeThe serum CXCL16 level in patients with CG genotype was 2.5 ± 0.3 μg/L in the LAA cerebral infarction group, ant it was higher than 2.1 ± 0.3 μg/L in patients with GT + TT genotype; the serum CXCL16 level in patients with CG genotype was 2.4 ± 0.6 μg/L in the SAO cerebral infarction group, and it was higher than 2.1 ± 0.3 μg/L in patients with GT + TT 2 genotype (all P < 0.01). Among the patients with GG genotype, the serum CXCL16 level in the LAA cerebral infarction group was higher than that in the SAO cerebral infarction group (P = 0.01); there was no significant difference in patients with GT + TT genotype between both groups. Circled digit fourMultivariate Logistic regression analysis showed that the serum CXCL16 level (OR =0.37, 95% CI 0.19 -0.70) and the GG genotype at polymorphic loci of CXCL16 gene rs3744700 (OR =2.57, 95% CI 1.23 -5.36) were the independent risk factors for affecting LAA cerebral infarction. Conclusion: In the TOAST subtypes, the correlation of serum CXCL16 level and the GG genotype at polymorphic loci of CXCL16 gene rs3744700 and LAA cerebral infarction are higher than SAO cerebral infarction.