Evidence map›Paper›PMID 32034108›Full record

SynthesisJournal of the American Society of Nephrology : JASN2020

Anti-Factor B Antibodies and Acute Postinfectious GN in Children.

Sophie Chauvet, Romain Berthaud, Magali Devriese, Morgane Mignotet, Paula Vieira Martins, Tania Robe-Rybkine, Maria A Miteva, Aram Gyulkhandanyan, Amélie Ryckewaert, Ferielle Louillet and 10 more

Open access · bronzeAbstract readMeta-Analysis
In one paragraph

Synthesis in Journal of the American Society of Nephrology : JASN, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 49 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
49citing papers in PubMed, 1 pooled it
3.8field-weighted citation impact, top 5% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

49 citing papers in PubMed, 1 synthesis or guideline pooled it, 81 citations in OpenAlex.

  1. Pooled it
  2. Article
  3. [Immune complex- and complement-mediated glomerulonephritides].Innere Medizin (Heidelberg, Germany) · 2026
    Review
  4. Article
  5. Review
  6. Review
  7. How to Cure Autoimmune GN and Podocytopathies.Journal of the American Society of Nephrology : JASN · 2026
    Review
  8. Review
  9. Review
  10. A Narrative Review of C3 Glomerulopathy: From Pathogenesis to Targeted Therapy.Canadian journal of kidney health and disease · 2026
    Review
  11. Review
  12. Article
  13. Article
  14. Review
  15. Targeting B Cells and Plasma Cells in Glomerular Disease.Journal of the American Society of Nephrology : JASN · 2025
    Review
  16. Acquired drivers of C3 glomerulopathy.Clinical kidney journal · 2025
    Review
  17. Review
  18. C3 glomerulopathy is highly prevalent in French Polynesia.Journal of translational autoimmunity · 2024
    Article
  19. Article
  20. Review
4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

20 authors at 9 institutions in 2 countries.

Sophie ChauvetInflammation, Complement and Cancer Team, Cordeliers Research Center, Institut National de la Santé et de la Recherche Médicale (INSERM) Unité Mixte de Recherche (UMR) S1138, Paris, France.
Romain BerthaudParis University, Paris, France.
Magali DevrieseImmunology, Assistance Publique-Hôpitaux de Paris (AP-HP), Georges Pompidou European Hospital, Paris, France.
Morgane MignotetImmunology, Assistance Publique-Hôpitaux de Paris (AP-HP), Georges Pompidou European Hospital, Paris, France.
Paula Vieira MartinsImmunology, Assistance Publique-Hôpitaux de Paris (AP-HP), Georges Pompidou European Hospital, Paris, France.
Tania Robe-RybkineInflammation, Complement and Cancer Team, Cordeliers Research Center, Institut National de la Santé et de la Recherche Médicale (INSERM) Unité Mixte de Recherche (UMR) S1138, Paris, France.
Maria A MitevaParis University, Paris, France.
Aram GyulkhandanyanUniversity of Paris Diderot, Sorbonne Paris Cité, Molécules Thérapeutiques In Silico, INSERM UMR S973, Paris, France.
Amélie RyckewaertDepartment of Nephrology, Rennes Hospital, Rennes, France.
Ferielle LouilletDepartment of Pediatric Nephrology, Rouen Hospital, Rouen, France.
Elodie MerieauDepartment of Pediatric Nephrology, Tours Hospital, Tours, France.
Guillaume MestralletDepartment of Pediatry, Villefranche sur Soane Hospital, Villefranche sur Soane, France.
Caroline Rousset-RouvièreDepartment of Pediatric Nephrology, Timone Hospital, Marseille, France.
Eric ThervetDepartments of Nephrology and.
Julien HoganDepartment of Pediatric Nephrology, AP-HP, Robert Debré Hospital, Paris, France.
Tim UlinskiDepartment of Pediatric Nephrology, AP-HP, Trousseau Hospital, Paris, France.
Bruno O VilloutreixParis University, Paris, France.
Lubka RoumeninaInflammation, Complement and Cancer Team, Cordeliers Research Center, Institut National de la Santé et de la Recherche Médicale (INSERM) Unité Mixte de Recherche (UMR) S1138, Paris, France.
Olivia BoyerParis University, Paris, France.
Véronique Frémeaux-BacchiInflammation, Complement and Cancer Team, Cordeliers Research Center, Institut National de la Santé et de la Recherche Médicale (INSERM) Unité Mixte de Recherche (UMR) S1138, Paris, France; veronique.fremeaux-bacchi@aphp.fr.
Hôpital Européen Georges-Pompidou · FRInserm · FRAssistance Publique – Hôpitaux de Paris · FRCentre National de la Recherche Scientifique · FRCentre Hospitalier Universitaire de Rennes · FRHôpital de la Timone · FRHôpital Robert-Debré · FRInstitut des Maladies Génétiques Imagine · FRPediatric Nephrology of Alabama · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundThe pathophysiology of the leading cause of pediatric acute nephritis, acute postinfectious GN, including mechanisms of the pathognomonic transient complement activation, remains uncertain. It shares clinicopathologic features with C3 glomerulopathy, a complement-mediated glomerulopathy that, unlike acute postinfectious GN, has a poor prognosis.

methodsThis retrospective study investigated mechanisms of complement activation in 34 children with acute postinfectious GN and low C3 level at onset. We screened a panel of anticomplement protein autoantibodies, carried out related functional characterization, and compared results with those of 60 children from the National French Registry who had C3 glomerulopathy and persistent hypocomplementemia.

resultsAll children with acute postinfectious GN had activation of the alternative pathway of the complement system. At onset, autoantibodies targeting factor B (a component of the alternative pathway C3 convertase) were found in a significantly higher proportion of children with the disorder versus children with hypocomplementemic C3 glomerulopathy (31 of 34 [91%] versus 4 of 28 [14%], respectively). In acute postinfectious GN, anti-factor B autoantibodies were transient and correlated with plasma C3 and soluble C5b-9 levels. We demonstrated that anti-factor B antibodies enhance alternative pathway convertase activity

conclusionsThese findings elucidate the pathophysiologic mechanisms underlying acute postinfectious GN by identifying anti-factor B autoantibodies as contributing factors in alternative complement pathway activation. At onset of a nephritic syndrome with low C3 level, screening for anti-factor B antibodies might help guide indications for kidney biopsy to avoid misdiagnosed chronic glomerulopathy, such as C3 glomerulopathy, and to help determine therapy.

Indexed as

AutoantibodiesChildChild, PreschoolComplement ActivationComplement C3Complement C3 Nephritic FactorComplement Factor BFemaleFranceGlomerulonephritisHumansMaleRetrospective StudiesAutoantibodiesComplement C3Complement C3 Nephritic FactorComplement Factor Bcomplementglomerulonephritispediatrics

Identifiers

PMID32034108
PMCPMC7191928
OpenAlexW3005239648

What OpenQuestion holds

Textmetadata
Read underepoch 390

Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.