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Membranous nephropathy PLA2R+ associated with Chagas disease

José Cândido Caldeira Xavier-Júnior1, Vanessa Dos Santos Silva2, Rosa Marlene Viero1

  • 1Department of Pathology - Faculdade de Medicina de Botucatu, Universidade Estadual Paulista, Botucatu/SP - Brazil .

Autopsy & Case Reports
|November 12, 2015
PubMed

Insights

This study reports the first case of membranous nephropathy (MN) associated with Chagas disease (CD). The autopsy revealed kidney MN with PLA2R expression and chronic heart damage in a CD patient.

Area of Science:

  • Nephrology
  • Infectious Diseases
  • Cardiology

Background:

  • Chagas disease (CD), caused by Trypanosoma cruzi, is a significant health issue in Latin America.
  • Chronic CD is linked to immune responses causing cardiac lesions.
  • Membranous nephropathy (MN) is a kidney disease, and its association with CD has not been previously reported.

Observation:

  • The study details the autopsy of a male patient with positive Chagas disease serology who died suddenly.
  • Cardiac examination revealed inflammatory infiltrates, myocyte necrosis, and interstitial fibrosis, indicative of chronic cardiomyopathy.
  • Kidney examination showed evidence of membranous nephropathy with positive phospholipase A2 receptor (PLA2R) expression.

Findings:

  • This is the first reported case of primary membranous nephropathy in a patient with Chagas disease.
  • The patient presented with severe chronic cardiomyopathy and heart failure.
  • The kidney pathology demonstrated PLA2R-associated MN.

Implications:

  • This case highlights a potential novel association between Chagas disease and membranous nephropathy.
  • The findings may influence the differential diagnosis of MN in endemic regions.
  • Further research is warranted to explore the pathogenesis of this co-occurrence and its clinical impact.

Keywords:
Chagas DiseaseGlomerulonephritis, MembranousReceptors, Phospholipase A2

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