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Updated: Jan 30, 2026

Supervised Machine Learning for Semi-Quantification of Extracellular DNA in Glomerulonephritis
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Membranoproliferative glomerulonephritis in Russian population

V A Dobronravov1, A V Smirnov1

  • 1Research Institute of Nephrology, I.P. Pavlov First Saint Petersburg State Medical University of the Ministry of Health of the Russian Federation, Saint Petersburg, Russia.

Terapevticheskii Arkhiv
|February 1, 2019
PubMed
Abstract

Insights

Membranoproliferative glomerulonephritis (MPGN) is a serious kidney disease with diverse causes and poor outcomes. Identifying the specific etiology through diagnostics is crucial for effective treatment and improved patient prognosis.

Area of Science:

  • Nephrology
  • Pathology
  • Immunology

Background:

  • Membranoproliferative glomerulonephritis (MPGN) represents a significant cause of kidney disease, characterized by complex immunological and morphological features.
  • Understanding the diverse etiologies and clinical presentations of MPGN is essential for effective patient management.

Purpose of the Study:

  • To analyze the etiology, clinical and morphological manifestations, therapeutic approaches, and prognosis of MPGN.
  • To investigate the relationship between MPGN subtypes, etiology, and patient outcomes.

Main Methods:

  • Retrospective analysis of 214 MPGN cases diagnosed between 2000 and 2017.
  • Evaluation of clinical data, kidney biopsy morphology, immunoglobulin (Ig) and C3 complement deposits.
  • Assessment of complete remission (CR), partial remission (PR), overall survival, and renal progression defined by estimated GFR (eGFR) decline or dialysis initiation.

Main Results:

  • MPGN accounted for 9.3% of biopsy-confirmed glomerulopathies, with a mean patient age of 44 years.
  • Secondary MPGN (sMPGN) was more prevalent (69.6%) than idiopathic MPGN (iMPGN) (30.4%), with autoimmune diseases, infections, and monoclonal gammopathies as common causes.
  • 10-year renal survival was 50%, with 50% of patients achieving CR/PR. Achieving CR/PR correlated with significantly better long-term renal survival.

Conclusions:

  • MPGN is a severe kidney disease with a heterogeneous etiology and generally unfavorable prognosis.
  • Accurate etiological diagnosis through integrated clinical and morphological assessment is key to selecting appropriate treatments.
  • Targeted diagnostics and treatment strategies can improve outcomes for patients with MPGN.
Keywords:
clinical manifestationscomplete ­remissionsetiologyimmunomorphologymembranoproliferative glomerulonephritismorphologypartial remissionsprognosissurvivaltherapy

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