Evidence map›Paper›PMID 32300880›Full record

ArticleVirchows Archiv : an international journal of pathology2020

Complement activation is associated with crescent formation in IgA nephropathy.

Hiroe Itami, Shigeo Hara, Kenichi Samejima, Hideo Tsushima, Katsuhiko Morimoto, Keisuke Okamoto, Takaaki Kosugi, Takahiro Kawano, Kengo Fujiki, Hiromichi Kitada and 3 more

Abstract readMulticenter Study
PubMed Publisher
In one paragraph

Article in Virchows Archiv : an international journal of pathology, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 1 pooled it
2.9field-weighted citation impact, top 8% 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

21 citing papers in PubMed, 1 synthesis or guideline pooled it, 29 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
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  5. Review
  6. Article
  7. Article
  8. Article
  9. Oral immunization withmSphere · 2024
    Article
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  11. Article
  12. Article
  13. Article
  14. Review
  15. Crescents and IgA Nephropathy: A Delicate Marriage.Journal of clinical medicine · 2022
    Review
  16. Review
  17. Review
  18. Article
  19. Article
  20. Review
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

13 authors at 6 institutions in 1 country.

Hiroe ItamiDepartment of Diagnostic Pathology, Nara Medical University, 840 Shijo-Cho, Kashihara, Nara, Japan. hritami1237@yahoo.co.jp.
Shigeo HaraDepartment of Diagnostic Pathology, Kobe City Medical Center General Hospital, Kobe, Japan.
Kenichi SamejimaDepartment of Nephrology, Nara Medical University, Kashihara, Japan.
Hideo TsushimaDepartment of Nephrology, Nara Medical University, Kashihara, Japan.
Katsuhiko MorimotoDepartment of Nephrology, Nara Prefecture General Medical Center, Nara, Japan.
Keisuke OkamotoDepartment of Nephrology, Saiseikai Suita Hospital, Suita, Japan.
Takaaki KosugiDepartment of Nephrology, Nara Prefectural Seiwa Medical Center, Sango, Japan.
Takahiro KawanoDepartment of Diabetes, Minami-Nara General Medical Center, Oyodo, Japan.
Kengo FujikiDepartment of Diabetes, Minami-Nara General Medical Center, Oyodo, Japan.
Hiromichi KitadaDepartment of Internal Medicine, Saiseikai Chuwa Hospital, Sakurai, Japan.
Kinta HatakeyamaDepartment of Diagnostic Pathology, Nara Medical University, 840 Shijo-Cho, Kashihara, Nara, Japan.
Kazuhiko TsuruyaDepartment of Nephrology, Nara Medical University, Kashihara, Japan.
Chiho OhbayashiDepartment of Diagnostic Pathology, Nara Medical University, 840 Shijo-Cho, Kashihara, Nara, Japan.
Nara Medical University · JPJikei University Kashiwa hospital · JPKobe City Medical Center General Hospital · JPNara Prefectural Institute of Public Health Research Center · JPNara Prefecture General Medical CenterSaiseikai Suita Hospital · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

IgA nephropathy (IgAN) is common chronic glomerulonephritis with variable prognosis, ranging from minor urinary abnormalities to end-stage renal disease. The revised Oxford classification of IgAN explains that cellular/fibrocellular crescents are associated with poor renal prognosis, proposing an extension to the MEST-C score. C3 immunofluorescent staining follows a distribution similar to IgA staining. Therefore, complement activation was reported to play a pivotal role in IgAN pathogenesis. This study included 132 IgAN patients diagnosed by renal biopsies. The clinical parameters at the time of the biopsies were obtained from patient data records. We classified the patients into C ≥ 1 and C0 groups, and compared clinical, light microscopic, and immunofluorescent features. In the C ≥ 1 group, 2 (1.5%) and 31 (23.5%) patients were assigned to C2 and C1, respectively. The remaining 99 patients (75%) were classified as C0. The C ≥ 1 group had lower average age and rate of hypertension, and higher score of urinary occult blood and E score. The C ≥ 1 group had significantly higher average immunofluorescence scores for IgA, C5b-9, mannose-associated serine protease (MASP) 1/3, MASP2, properdin, factor B, and kappa. The steroid use rate was significantly higher in the C ≥ 1 group. During the follow-up period of 2.90 years on average, the rate of renal dysfunction was not significantly different between groups. Crescent formation in IgAN was associated with activation of the lectin and alternative pathways. The C ≥ 1 group had significantly increased use of steroids, which probably caused comparable renal function during the follow-up period.

Indexed as

Complement ActivationAdolescentAdultAgedAged, 80 and overComplement C3Complement Factor BComplement Membrane Attack ComplexComplement System ProteinsFemaleFluorescent Antibody TechniqueGlomerulonephritis, IGAHumansImmunoglobulin AImmunoglobulin Light ChainsJapanC3 protein, humanComplement C3Complement Factor BComplement Membrane Attack ComplexComplement System ProteinsImmunoglobulin AImmunoglobulin Light ChainsMannose-Binding Protein-Associated Serine ProteasesProperdinComplementCrescentsIgA nephropathyLight chain

Identifiers

PMID32300880
OpenAlexW3016378846

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.