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Oliveira, Romulo V.M.; Albuquerque, Felipe N.; Duque, Gustavo S.; Freitas, Rossana G.A.; Carvalho, Elizeu F.; Brandão, Andrea A.; Silva, Dayse A.; Mourilhe-Rocha, Ricardo; Albuquerque, Denilson C.
Nitric oxide, 02/2018, Letnik: 73Journal Article
The G894T polymorphism in endothelial nitric oxide synthase enzyme gene plays an important role in heart failure (HF) and its frequency varies among populations. We investigated this association in highly admixed samples in terms of ancestry. The cohort included 210 HF patients and 106 healthy individuals. Self-reported race and NYHA class were analyzed for HF patients. G894T polymorphism was analyzed by polymerase chain reaction (PCR) and by restriction fragment length polymorphism technique. Ancestry was estimated using a PCR reaction containing 46 autosomal ancestry informative markers and an analysis by capillary electrophoresis. The GG homozygous genotype had a higher frequency in HF patients (63.8%) than in healthy individuals (48.1%), showing an increased chance (odds ratio 1.90, 95% confidence interval 1.18–3.05). The ancestry profiles in patients and controls were similar, with a major European contribution (57.1% and 63.2%), followed by African (30.2% and 24.0%) and Native American (12.7% and 12.8%), without a significant difference between both samples (p = 0.28). The GG genotype is associated to HF prognosis, and this association remains present in highly admixed sample groups. •Heart failure can be influenced by genetic polymorphisms.•Nitric oxide synthase enzyme plays an important role in the disease.•The G894T polymorphism varies the frequency among populations ancestries.•Individuals with GG genotype have more chance of developing heart failure.
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Leto | Faktor vpliva | Izdaja | Kategorija | Razvrstitev | ||||
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JCR | SNIP | JCR | SNIP | JCR | SNIP | JCR | SNIP |
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in: SICRIS
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