Global research landscape of C3 glomerulopathy: A bibliometric analysis

Clinical Nephrology
|August 14, 2026
PubMed

Insights

Global C3 glomerulopathy (C3G) research has shifted towards complement therapeutics, with a notable increase in publications after 2013. International collaboration needs strengthening to address geographical disparities in C3G research.

Area of Science:

  • Nephrology
  • Immunology
  • Bibliometrics

Background:

  • C3 glomerulopathy (C3G) is a rare, complement-mediated kidney disease presenting diagnostic and therapeutic challenges.
  • A comprehensive mapping of the global research landscape in C3G is lacking.
  • Understanding research trends is crucial for advancing C3G diagnosis and treatment.

Purpose of the Study:

  • To conduct a bibliometric analysis of C3G research from 1980 to 2025.
  • To evaluate publication trends, key contributors, thematic evolution, and collaboration patterns.
  • To identify shifts in C3G research focus from pathology to molecular and therapeutic approaches.

Main Methods:

  • Systematic bibliometric analysis of PubMed-indexed publications (1980-2025).
  • Inclusion of original research and reviews on C3G pathophysiology, diagnosis, and management.
  • Analysis using Bibliometrix (R) and VOSviewer, with Google Scholar for citation verification.

Main Results:

  • 967 publications identified across 273 journals, with exponential growth post-2013.
  • Leading countries: USA, UK, Italy; emerging: China, India, Türkiye. Most prolific author: S. Sethi.
  • Thematic shift from "dense deposit disease" to "complement inhibition," "iptacopan," and "pegcetacoplan."

Conclusions:

  • C3G research has transitioned towards precision complement therapeutics.
  • Significant geographical disparities in C3G research output persist.
  • Enhanced international collaboration and equitable access to therapies are essential for C3G research advancement.
Abstract

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