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Angiotensin-converting enzyme insertion/deletion gene polymorphism in multiple sclerosis: a meta-analysis.
Smiljana Ristić1, Nada Starčević Čizmarević2, Juraj Sepčić3
1Department of Biology and Medical Genetics, School of Medicine, University of Rijeka, Braće Branchetta 20, 51000, Rijeka, Croatia. smiljana.ristic@medri.uniri.hr.
This meta-analysis found no significant link between the angiotensin-converting enzyme (ACE) I/D gene polymorphism and multiple sclerosis (MS) risk in European populations of Slavic origin. Further research in diverse populations is needed.
Area of Science:
- Neuroimmunology
- Genetics
- Epidemiology
Background:
- Elevated angiotensin-converting enzyme (ACE) activity is observed in multiple sclerosis (MS) patients.
- ACE inhibition has shown disease suppression in experimental autoimmune encephalomyelitis models.
- These observations suggest a potential role for ACE in MS pathogenesis.
Purpose of the Study:
- To investigate the association between the ACE gene's insertion/deletion (I/D) polymorphism and MS risk.
- To clarify conflicting results from previous studies.
- To perform a meta-analysis on European populations of Slavic origin.
Main Methods:
- A meta-analysis was conducted on four studies.
- Included 1062 MS patients and 1067 controls from European Slavic populations.
- Data analyzed using Comprehensive Meta-analysis 3.0 software.
Main Results:
- No statistically significant association was found between the ACE I/D polymorphism and MS risk.
- This lack of association held true across all genetic models (allelic, recessive, dominant, additive).
- P-values for all comparisons were greater than or equal to 0.05.
Conclusions:
- The ACE I/D polymorphism is not associated with susceptibility to MS in Europeans of Slavic origin.
- Current evidence does not support a role for this specific polymorphism in MS risk within this population.
- Larger studies in genetically diverse populations are recommended to further elucidate the ACE gene's role in MS.
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