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Association of the MMP-9 polymorphism and ischemic stroke risk in southern Chinese Han population
1Department of Neurosurgery, Affiliated Haikou Hospital of Xiangya Medical College in Central South University, Haikou, Hainan, 570208, China.
Insights
Single nucleotide polymorphisms (SNPs) in the MMP-9 gene were investigated for their association with ischemic stroke (IS) risk. The rs3787268 polymorphism was found to increase IS risk in a southern Chinese Han population.
Area of Science:
- Genetics
- Cardiovascular Disease Research
- Molecular Biology
Background:
- Stroke is a leading cause of disability globally.
- Matrix metalloproteinase-9 (MMP-9) is implicated in cardiovascular disease risk.
- Understanding genetic predispositions to ischemic stroke (IS) is crucial.
Purpose of the Study:
- To investigate the association between MMP-9 gene single nucleotide polymorphisms (SNPs) and IS risk.
- To analyze the rs3787268 polymorphism in a southern Chinese Han population.
- To explore the role of MMP-9 in IS pathogenesis.
Main Methods:
- Case-control study with 250 IS patients and 250 healthy controls.
- Genotyping performed using the Agena MassARRAY system.
- Statistical analysis included chi-squared tests, genetic models, and logistic regression.
Main Results:
- The rs3787268 polymorphism showed a significant association with increased IS risk.
- Specific genotypes (G/A, A/A) and haplotypes (C/G) demonstrated correlations with IS risk.
- Odds ratios and confidence intervals indicated a heightened risk associated with certain MMP-9 SNP variations.
Conclusions:
- The rs3787268 locus in the MMP-9 gene is a potential risk factor for IS in the studied population.
- These findings contribute to understanding the genetic underpinnings of IS.
- Further research into MMP-9's role in IS pathogenesis is warranted.
Background:
Stroke is a serious cardiovascular disease and is also the leading cause of long-term disability in developing and developed countries. Because matrix metalloproteinase-9 (MMP-9) is associated with the risk of many cardiovascular diseases, we investigated the relationship between single nucleotide polymorphisms (SNPs) in MMP-9 and the risk of Ischemic stroke (IS) in a southern Chinese Han population.
Methods:
This study included 250 stroke patients and 250 healthy controls. Genotyping was performed using the Agena MassARRAY system, and chi-squared tests and genetic models were used to evaluate the associations between MMP-9 SNPs and the risk of IS. Odds ratio (OR) and 95% confidence intervals (CIs) were calculated by unconditional logistic regression adjusted for age.
Results:
Polymorphism rs3787268 was associated with increased the risk of IS. Specifically, the genotype "G/A" significantly correlated with IS risk in the co-dominant model [odds ratio (OR) = 1.62; 95% confidence interval (CI) = 1.10-2.41; p = 0.035)], while genotypes "G/A" and "A/A" may increase the risk of IS based on the dominant model (OR = 1.62; 95% CI = 1.12-2.35; p = 0.0097). This SNP was also significantly associated with IS risk in the log-additive model (OR = 1.33; 95% CI = 1.03-1.70; p = 0.026). Conversely, haplotype "C/G" appears to reduce the risk of IS (OR = 0.71; 95% CI = 0.54-0.95; p = 0.019).
Conclusions:
Our study showed that the rs3787268 locus in the MMP-9 gene may increase risk of IS in a southern Chinese Han population and thus provide insight into the IS pathogenesis.
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