Evidence map›Paper›PMID 39721684›Full record

ArticleInternal medicine (Tokyo, Japan)2025

Membranous Nephropathy Associated with Syphilis: Correlative Light and Electron Microscopy Revealing the Localization of Neuron-derived Neurotrophic Factor within Subepithelial Electron Dense Deposits.

Chisato Minezaki, Tatsuhiko Azegami, Akinori Hashiguchi, Ayumi Yoshifuji, Norifumi Yoshimoto, Aika Hagiwara, Akihito Hishikawa, Kaori Hayashi

Abstract readCase Reports
In one paragraph

Article in Internal medicine (Tokyo, Japan), 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
–field-weighted citation impact
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

4 citing papers in PubMed.

  1. Article
  2. Review
  3. Review
  4. Article
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

8 authors.

Chisato MinezakiDivision of Nephrology, Endocrinology and Metabolism, Department of Internal Medicine, Keio University School of Medicine, Japan.
Tatsuhiko AzegamiDivision of Nephrology, Endocrinology and Metabolism, Department of Internal Medicine, Keio University School of Medicine, Japan.
Akinori HashiguchiDepartment of Pathology, Keio University School of Medicine, Japan.
Ayumi YoshifujiDepartment of Infectious Diseases, Keio University School of Medicine, Japan.
Norifumi YoshimotoDivision of Nephrology, Endocrinology and Metabolism, Department of Internal Medicine, Keio University School of Medicine, Japan.
Aika HagiwaraDivision of Nephrology, Endocrinology and Metabolism, Department of Internal Medicine, Keio University School of Medicine, Japan.
Akihito HishikawaDivision of Nephrology, Endocrinology and Metabolism, Department of Internal Medicine, Keio University School of Medicine, Japan.
Kaori HayashiDivision of Nephrology, Endocrinology and Metabolism, Department of Internal Medicine, Keio University School of Medicine, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

A 50-year-old man presented to our hospital with a fever, edema, and a rash. The clinical diagnosis was renal dysfunction, nephrotic syndrome, and syphilis. The patient was treated with benzylpenicillin, and his symptoms improved. A renal biopsy revealed membranous nephropathy (MN). Recently, neuron-derived neurotrophic factor (NDNF) was reported to be an antigen corresponding to syphilis-associated MN. In the present patient, immunofluorescence staining and immunoelectron microscopy revealed granular NDNF-positive findings within subepithelial deposits, suggesting the presence of NDNF-IgG immune complexes. Although the mechanism by which NDNF serves as a target antigen remains unclear, NDNF was found to colocalize within subepithelial immune complexes in syphilis-associated MN.

Indexed as

Glomerulonephritis, MembranousSyphilisAntigen-Antibody ComplexHumansMaleMicroscopy, ElectronMiddle AgedAntigen-Antibody Complexmembranous nephropathynephrotic syndromeneuron-derived neurotrophic factor (NDNF)syphilis

Identifiers

PMID39721684
PMCPMC12331341

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-ND
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.