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Abstract

Aim

The underlying pathophysiologic mechanisms of aortic stenosis are not clear. Mitochondrial dysfunction plays a role in many pathological conditions including cardiac diseases. We aimed to analyze the mitochondrial DNA haplogroups in a group of patients undergoing valve replacement surgery due to severe aortic stenosis.

Methods

Mitochondrial DNA haplogroups were assessed in 176 patients with severe aortic stenosis and 308 control subjects. Cardiovascular risk factors and demographics were similar in both groups.

Results

Patients carrying haplogroup Uk had a lower risk of developing aortic stenosis, especially compared to patients carrying haplogroup H (odds ratio = 0.507; 95% confidence interval: 0.270–0.952, p = 0.035).

Conclusions

Mitochondrial DNA haplogroups could be involved in the development of severe aortic stenosis. Specifically, haplogroup H could be a risk factor and Uk a protective factor for severe aortic stenosis in a population from Spain.

Keywords

Aortic valve stenosis DNA mitochondrial Genetic predisposition to disease Haplotypes Risk factors

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Mitochondrial DNA haplogroups influence the risk of aortic stenosis

Abstract

Aim

Methods

Results

Conclusions

Keywords

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References