[Association of OSMR gene polymorphisms with dilated cardiomyopathy in a Han Chinese population]

Xiaohui Dai1, Ying Peng, Bin Zhou

  • 1Department of Cardiology, West China Hospital, Sichuan University, Chengdu, Sichuan 610041, China. lrlz1989@163.com.

Insights

Genetic variations in the oncostatin M receptor (OSMR) gene, specifically rs2292016, are linked to the development and prognosis of dilated cardiomyopathy (DCM). The GT genotype increases DCM risk, while the GG genotype indicates a poorer outcome in patients not receiving cardiac resynchronization therapy.

Area of Science:

  • Cardiovascular Genetics
  • Molecular Cardiology
  • Genetic Epidemiology

Background:

  • Dilated cardiomyopathy (DCM) is a significant cause of heart failure.
  • Genetic factors play a crucial role in DCM pathogenesis.
  • The oncostatin M receptor (OSMR) gene is implicated in cardiovascular function.

Purpose of the Study:

  • To investigate the association between OSMR gene polymorphisms and DCM in a Han Chinese population.
  • To evaluate the impact of specific OSMR single nucleotide polymorphisms (SNPs) on DCM susceptibility and prognosis.

Main Methods:

  • Genotyping of two OSMR SNPs (rs2292016 and rs2278329) in 351 DCM patients and 418 healthy controls using TaqMan assay.
  • Clinical follow-up of 200 DCM patients for prognosis assessment.
  • Statistical analysis to determine associations with DCM development and outcomes.

Main Results:

  • The GT genotype of rs2292016 was significantly associated with an increased risk of DCM (OR=1.45, P=0.01).
  • In patients not receiving cardiac resynchronization therapy, the GG genotype of rs2292016 independently predicted a poor prognosis (OR=1.69, P=0.017).
  • No significant association was observed for rs2278329 with DCM susceptibility or prognosis.

Conclusions:

  • Polymorphisms in the OSMR gene, particularly at the rs2292016 locus, are associated with both the development and clinical outcome of dilated cardiomyopathy.
  • The rs2292016 SNP may serve as a potential genetic marker for DCM risk and prognosis.
Abstract

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