Evidence map›Paper›PMID 29081027›Full record

ArticleJournal of nephrology2018

Diagnostic specificity of autoantibodies to M-type phospholipase A2 receptor (PLA2R) in differentiating idiopathic membranous nephropathy (IMN) from secondary forms and other glomerular diseases.

A Radice, F Pieruzzi, B Trezzi, G Ghiggeri, P Napodano, M D'Amico, T Stellato, R Brugnano, F Ravera, D Rolla and 10 more

Abstract read
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In one paragraph

Article in Journal of nephrology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 48 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
48citing papers in PubMed, 2 pooled it
4.0field-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

48 citing papers in PubMed, 2 syntheses or guidelines pooled it, 78 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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  9. Carcinoma of the ampulla of Vater with membranous nephropathy: a case report.The Journal of international medical research · 2025
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

20 authors at 14 institutions in 1 country.

A RadiceMicrobiology Institute, ASST Santi Paolo e Carlo, S. Carlo Borromeo Hospital, Milan, Italy.
F PieruzziRenal Unit, Department of Medicine and Surgery, University of Milano-Bicocca and ASST Monza, Monza, MB, Italy.
B TrezziClinical Immunology Unit and Renal Unit, ASST Santi Paolo e Carlo, S. Carlo Borromeo Hospital, Milan, Italy.
G GhiggeriRenal Unit, G. Gaslini Institute, Genoa, Italy.
P NapodanoClinical Immunology Unit and Renal Unit, ASST Santi Paolo e Carlo, S. Carlo Borromeo Hospital, Milan, Italy.
M D'AmicoRenal Unit, S. Anna Hospital, Como, Italy.
T StellatoRenal Unit, Department of Medicine and Surgery, University of Milano-Bicocca and ASST Monza, Monza, MB, Italy.
R BrugnanoRenal Unit, Perugia Hospital, Perugia, Italy.
F RaveraRenal Unit, Niguarda Hospital, Milan, Italy.
D RollaRenal Unit, S. Martino Hospital, Genoa, Italy.
G PesceAutoimm. Lab-DIMI, University of Genova, Genoa, Italy.
M E GiovenzanaRenal Unit, ASST Monza, Desio Hospital, Desio, Italy.
F LondrinoRenal Unit, S. Andrea Hospital, La Spezia, Italy.
V CantaluppiRenal Unit, Maggiore Hospital and University of Piemonte Orientale, Novara, Italy.
F PregnolatoImmuno-Rheumatololy Laboratory, Auxologico Institute, Milan, Italy.
A VolpiRenal Unit, ASST Santi Paolo e Carlo, S. Paolo Hospital, Milan, Italy.
G RombolàRenal Unit, Ospedale di Circolo e Fondazione Macchi, Varese, Italy.
G MoroniRenal Unit, Fondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico, Milan, Italy.
G OrtisiMicrobiology Institute, ASST Santi Paolo e Carlo, S. Carlo Borromeo Hospital, Milan, Italy.
Renato A SinicoRenal Unit, Department of Medicine and Surgery, University of Milano-Bicocca and ASST Monza, Monza, MB, Italy. renato.sinico@unimib.it.ORCID 0000-0002-9470-218X
Ospedale San Carlo · ITUniversity of Milano-Bicocca · ITAzienda Socio Sanitaria Territoriale Grande Ospedale Metropolitano Niguarda · ITCTO Andrea Alesini · ITFondazione IRCCS Ca' Granda Ospedale Maggiore Policlinico · ITIRCCS Istituto Auxologico Italiano · ITIstituto Giannina Gaslini · ITOspedale di Circolo e Fondazione Macchi · ITOspedale Policlinico San Martino · ITOspedale San Paolo · ITOspedale Sant'Anna · ITUniversità degli Studi del Piemonte Orientale “Amedeo Avogadro” · ITUniversity of Genoa · ITUniversity of Perugia · IT

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Autoantibody against phospholipase A2 receptor (anti-PLA2R) is a sensitive and specific biomarker of idiopathic membranous nephropathy (iMN), being found in approximately 70% of iMN patients and only occasionally in other glomerular diseases. However, whereas its diagnostic specificity vs. normal controls and other glomerulonephritides (GN) has been firmly established, its specificity vs. membranous nephropathy associated with various diseases (sMN) has given inconsistent results. The aim of our study was to evaluate the prevalence of anti-PLA2R antibodies in iMN in comparison with various control groups, including sMN. A total of 252 consecutive iMN patients, 184 pathological and 43 healthy controls were tested for anti-PLA2R antibody using indirect immunofluorescence (PLA2R IIFT, Euroimmun). Anti-PLA2R autoantibodies were detectable in 178/252 iMN patients, 1/80 primary GN, 0/72 secondary GN, 9/32 sMN and 0/43 healthy controls, with a diagnostic sensitivity of 70.6%. The diagnostic specificity of anti-PLA2R antibody vs. normal and pathological controls was 100 and 94.6% respectively. However, when the diagnostic specificity was calculated only vs. secondary forms of MN, it decreased considerably to 71.9%. Interestingly enough, 9 out of 10 anti-PLA2R positive patients in the disease control groups had membranous nephropathy associated with various diseases (7 cancer, 1 Crohn's disease, 1 scleroderma). In conclusion, anti-PLA2R positivity in a patient with MN, should not be considered sufficient to abstain from seeking a secondary cause, especially in patients with risk factors for neoplasia. The causal relationship between tumors and anti-PLA2R-induced MN remains to be established, as well as the possible mechanisms through which malignancies provoke autoimmunity.

Indexed as

AgedAutoantibodiesCrohn DiseaseDiagnosis, DifferentialFemaleGlomerulonephritisGlomerulonephritis, IGAGlomerulonephritis, MembranoproliferativeGlomerulonephritis, MembranousGlomerulosclerosis, Focal SegmentalHumansLupus NephritisMaleMiddle AgedNeoplasmsReceptors, Phospholipase A2AutoantibodiesPLA2R1 protein, humanReceptors, Phospholipase A2Autoantibody to phospholipase A2 receptorIdiopathic membranous nephropathySecondary membranous nephropathy, diagnostic specificity

Identifiers

PMID29081027
OpenAlexW2765144154

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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.