Evidence map›Paper›PMID 31843984›Full record

ArticleJournal of the American Society of Nephrology : JASN2020

Detection of PLA2R Autoantibodies before the Diagnosis of Membranous Nephropathy.

Peter D Burbelo, Megha Joshi, Adrija Chaturvedi, Dustin J Little, John S Thurlow, Meryl Waldman, Stephen W Olson

Open access · greenAbstract read
In one paragraph

Article 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 45 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
45citing papers in PubMed, 2 pooled it
6.1field-weighted citation impact, top 3% 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

45 citing papers in PubMed, 2 syntheses or guidelines pooled it, 85 citations in OpenAlex.

  1. PLA2R autoantibodies, a multifaceted biomarker in nephrotic syndrome and membranous nephropathy.Nephrology, dialysis, transplantation : official publication of the European Dialysis and Transplant Association - European Renal Association · 2025
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  10. Intercepting the complement amplification loop through podocyte MC5R signaling ameliorates membranous nephropathy.Molecular therapy : the journal of the American Society of Gene Therapy · 2025
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4 · The record

Corrections and comments

5 · Who and what money

Authors and funding

7 authors at 2 institutions in 1 country.

Peter D BurbeloDental Clinical Research Core, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, Maryland.
Megha JoshiNephrology Department, Walter Reed National Military Medical Center, Bethesda, Maryland; and.
Adrija ChaturvediDental Clinical Research Core, National Institute of Dental and Craniofacial Research, National Institutes of Health, Bethesda, Maryland.
Dustin J LittleNephrology Department, Walter Reed National Military Medical Center, Bethesda, Maryland; and.ORCID 0000-0002-4201-0237
John S ThurlowNephrology Department, Walter Reed National Military Medical Center, Bethesda, Maryland; and.
Meryl WaldmanKidney Disease Branch, National Institute of Diabetes and Digestive and Kidney Diseases, National Institutes of Health, Bethesda, Maryland.
Stephen W OlsonNephrology Department, Walter Reed National Military Medical Center, Bethesda, Maryland; and stephen.w.olson.mil@mail.mil.
Walter Reed National Military Medical Center · USNational Institutes of Health · US

Funding

NIDCR DIR Scientific Cores (Combined Technical Research Core)ZICDE000729 · NIDCR · NATIONAL INSTITUTE OF DENTAL & CRANIOFACIAL RESEARCH · PI ABSHARI, MEHRNOOSH · 2009 to 2025
$31.7M
Intramural NIH HHS ZIC DE000729
6 · The paper itself

Abstract

backgroundCirculating serum autoantibodies against the M-type phospholipase A2 receptor (PLA2R-AB) are a key biomarker in the diagnosis and monitoring of primary membranous nephropathy (MN). However, little is known about the appearance and trajectory of PLA2R-AB before the clinical diagnosis of MN.

methodsUsing the Department of Defense Serum Repository, we analyzed PLA2R-AB in multiple, 1054 longitudinal serum samples collected before diagnosis of MN from 134 individuals with primary MN, 35 individuals with secondary MN, and 134 healthy volunteers. We evaluated the presence and timing of non-nephrotic range proteinuria (NNRP) and serum albumin measurements in relation to PLA2R-AB status.

resultsAnalysis of PLA2R-AB in longitudinal serum samples revealed seropositivity in 44% (59 out of 134) of primary MN cases, 3% (one out of 35) of secondary MN cases, and in 0% of healthy controls. Among patients with MN, PLA2R-AB were detectable at a median of 274 days before renal biopsy diagnosis (interquartile range, 71-821 days). Approximately one third of the participants became seropositive within 3 months of MN diagnosis. Of the 21 individuals with documented prediagnostic NNRP, 43% (nine out of 21) were seropositive before NNRP was first documented and 28.5% (six out of 21) were seropositive at the same time as NNRP; 66% (39 out of 59) of those seropositive for PLA2R-AB had hypoalbuminemia present at the time antibody was initially detected. Twelve participants (20%) were seropositive before hypoalbuminemia became apparent, and eight participants (14%) were seropositive after hypoalbuminemia became apparent.

conclusionsCirculating PLA2R-AB are detectable months to years before documented NNRP and biopsy-proven diagnosis in patients with MN.

Indexed as

AdultAutoantibodiesCase-Control StudiesFemaleGlomerulonephritis, MembranousHumansMaleMiddle AgedReceptors, Phospholipase A2Retrospective StudiesAutoantibodiesPLA2R1 protein, humanReceptors, Phospholipase A2glomerular diseaseglomerulopathymembranous nephropathynephrotic syndromeproteinuria

Identifiers

PMID31843984
PMCPMC6934991
OpenAlexW2995516475

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.