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Small population sizes put a species at extreme risk of extinction due to a lack of variation, and a consequent decrease in adaptability. This weakens the chances of survival under pressures such as climate change, competition from other species, or new diseases. Large populations are more likely to survive pressures such as these, as such populations are more likely to harbor individuals that have genetic variants that are adaptive under new stresses. Small populations are much less...
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Membranoproliferative glomerulonephritis in Russian population.

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|February 1, 2019
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Summary

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.

Keywords:
clinical manifestationscomplete ­remissionsetiologyimmunomorphologymembranoproliferative glomerulonephritismorphologypartial remissionsprognosissurvivaltherapy

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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.