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Summary
This summary is machine-generated.

Body mass index (BMI) interacts with HSP70-2 gene polymorphism in Uyghur patients with ischemic heart failure (IHF). Low BMI (<26.5 kg/m2) increases poor prognosis risk for IHF patients with HSP70-2 AA/AG genotypes.

Keywords:
Alcohol consumptionBody mass indexHSP70-2 geneInteractionIschemic heart failure

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Area of Science:

  • Genetics and Genomics
  • Cardiovascular Medicine
  • Metabolic Health

Background:

  • Ischemic heart failure (IHF) poses a significant health burden, particularly in specific ethnic groups.
  • Genetic factors, such as Heat Shock Protein 70-2 (HSP70-2) gene polymorphism, may influence IHF susceptibility and prognosis.
  • Lifestyle factors including body mass index (BMI) and alcohol consumption are known contributors to cardiovascular disease.

Purpose of the Study:

  • To investigate the interactive effects of HSP70-2 gene polymorphism, BMI, and alcohol consumption on the prognosis of Uyghur patients diagnosed with IHF.
  • To identify specific genetic and lifestyle risk factors associated with poor outcomes in IHF patients.

Main Methods:

  • A case-control study involving 205 Uyghur IHF patients and 200 healthy controls.
  • HSP70-2 gene +1267 polymorphism was analyzed using Polymerase Chain Reaction (PCR).
  • Multivariate logistic regression and crossover analysis (calculating Relative Excess Risk of Interaction - RERI) were employed to assess risk factors and interactions.

Main Results:

  • Poor prognosis in IHF patients was associated with higher rates of alcohol consumption, abnormal liver enzymes (ALT, AST), lower BMI, and reduced left ventricular ejection fraction.
  • Significant differences in HSP70-2 genotype and allele frequencies were observed between good and poor prognosis groups, and across different NYHA cardiac function classes.
  • A significant additive interaction was found between BMI and HSP70-2 gene polymorphism (RERI=1.15, P<0.01). Specifically, BMI < 26.5 kg/m2 increased poor prognosis risk in patients with HSP70-2 AA/AG genotypes (OR=7.47, P<0.01).

Conclusions:

  • HSP70-2 gene polymorphism interacts with BMI in Uyghur IHF patients.
  • A BMI below 26.5 kg/m2 is a significant risk factor for poor prognosis in IHF patients carrying the HSP70-2 AA/AG genotypes.
  • Alcohol consumption did not show a significant interaction with HSP70-2 gene polymorphism regarding IHF prognosis.