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Angiotensin-converting enzyme insertion/deletion gene polymorphism and progression of Chagas' cardiomyopathy

Carmine Pascuzzo-Lima1, Juan C Mendible, Rafael A Bonfante-Cabarcas

  • 1Unidad de Bioquímica Dr. José Antonio Moreno Yanes, Decanato de Ciencias de la Salud Dr. Pablo Acosta Ortiz, Universidad Centroccidental Lisandro Alvarado, 3001 Barquisimeto, Lara State, Venezuela. carminepl@yahoo.com.

Revista Espanola De Cardiologia
|March 10, 2009
PubMed

Insights

Genetic factors may not influence Chagas disease progression. This study found no link between the angiotensin-converting enzyme gene insertion/deletion polymorphism and the development of cardiomyopathy in patients with Chagas disease.

Area of Science:

  • Cardiology
  • Genetics
  • Infectious Diseases

Background:

  • Chagas disease, caused by Trypanosoma cruzi, is prevalent in Latin America.
  • Chronic Chagas disease often leads to cardiomyopathy, potentially influenced by genetic factors.
  • Alterations in the renin-angiotensin-aldosterone system are observed in Chagas disease.

Purpose of the Study:

  • To investigate the association between genetic polymorphisms and myocardial damage in Chagas disease.
  • To determine if the angiotensin-converting enzyme (ACE) gene insertion/deletion polymorphism influences cardiomyopathy progression.

Main Methods:

  • Study included 125 Chagas disease patients, categorized by cardiomyopathy severity.
  • Angiotensin-converting enzyme (ACE) gene insertion/deletion polymorphism was analyzed.
  • Genotype data was correlated with clinical disease stage, adjusting for demographic variables.

Main Results:

  • Genotypes were in Hardy-Weinberg equilibrium.
  • No significant relationship was found between the ACE gene polymorphism and the progression of chronic Chagas' disease cardiomyopathy after adjusting for demographic factors.

Conclusions:

  • The insertion/deletion polymorphism of the angiotensin-converting enzyme gene does not appear to be associated with the progression of cardiomyopathy in chronic Chagas disease.
  • Further research with larger sample sizes may be warranted to definitively rule out genetic influences.

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