Evidence map›Paper›PMID 24586974›Full record

ArticlePloS one2014

Changes in nephritogenic serum galactose-deficient IgA1 in IgA nephropathy following tonsillectomy and steroid therapy.

Junichiro Nakata, Yusuke Suzuki, Hitoshi Suzuki, Daisuke Sato, Tatsuya Kano, Hiroyuki Yanagawa, Keiichi Matsuzaki, Satoshi Horikoshi, Jan Novak, Yasuhiko Tomino

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 57 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
57citing papers in PubMed, 1 pooled it
5.6field-weighted citation impact, top 4% 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

57 citing papers in PubMed, 1 synthesis or guideline pooled it, 91 citations in OpenAlex.

  1. Non-immunosuppressive treatment for IgA nephropathy.The Cochrane database of systematic reviews · 2024
    Pooled it
  2. Trial
  3. New prognostic markers for IgA nephropathy in children.Pediatric nephrology (Berlin, Germany) · 2026
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  7. Article
  8. Role of Systemic Glucocorticoids in Reducing IgA and Galactose-Deficient IgA1 Levels in IgA Nephropathy.Clinical journal of the American Society of Nephrology : CJASN · 2025
    Article
  9. Article
  10. Article
  11. Article
  12. Lessons from IgA Nephropathy Models.International journal of molecular sciences · 2024
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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

10 authors at 2 institutions in 2 countries.

Junichiro NakataDivision of Nephrology, Department of Internal Medicine, Juntendo University Faculty of Medicine, Tokyo, Japan.
Yusuke SuzukiDivision of Nephrology, Department of Internal Medicine, Juntendo University Faculty of Medicine, Tokyo, Japan.
Hitoshi SuzukiDivision of Nephrology, Department of Internal Medicine, Juntendo University Faculty of Medicine, Tokyo, Japan ; Department of Microbiology, University of Alabama at Birmingham, Birmingham, Alabama, United States of America.
Daisuke SatoDivision of Nephrology, Department of Internal Medicine, Juntendo University Faculty of Medicine, Tokyo, Japan.
Tatsuya KanoDivision of Nephrology, Department of Internal Medicine, Juntendo University Faculty of Medicine, Tokyo, Japan.
Hiroyuki YanagawaDivision of Nephrology, Department of Internal Medicine, Juntendo University Faculty of Medicine, Tokyo, Japan.
Keiichi MatsuzakiDivision of Nephrology, Department of Internal Medicine, Juntendo University Faculty of Medicine, Tokyo, Japan ; Kyoto University Health Service, Kyoto, Japan.
Satoshi HorikoshiDivision of Nephrology, Department of Internal Medicine, Juntendo University Faculty of Medicine, Tokyo, Japan.
Jan NovakDepartment of Microbiology, University of Alabama at Birmingham, Birmingham, Alabama, United States of America.
Yasuhiko TominoDivision of Nephrology, Department of Internal Medicine, Juntendo University Faculty of Medicine, Tokyo, Japan.
Juntendo University · JPUniversity of Alabama at Birmingham · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundRecent studies have shown that galactose-deficient IgA1 (GdIgA1) has an important role in the pathogenesis of IgA nephropathy (IgAN). Although emerging data suggest that serum GdIgA1 can be a useful non-invasive IgAN biomarker, the localization of nephritogenic GdIgA1-producing B cells remains unclear. Recent clinical and experimental studies indicate that immune activation tonsillar toll-like receptor (TLR) 9 may be involved in the pathogenesis of IgAN. Here we assessed the possibility of GdIgA1 production in the palatine tonsils in IgAN patients.

methodsWe assessed changes in serum GdIgA1 levels in IgAN patients with clinical remission of hematuria and proteinuria following combined tonsillectomy and steroid pulse therapy. Further, the association between clinical outcome and tonsillar TLR9 expression was evaluated.

resultsPatients (n = 37) were divided into two groups according to therapy response. In one group, serum GdIgA1 levels decreased after tonsillectomy (59%) alone, whereas in the other group most levels only decreased after the addition of steroid pulse therapy to tonsillectomy (41%). The former group showed significantly higher tonsillar TLR9 expression and better improvement in hematuria immediately after tonsillectomy than the latter group.

conclusionsThe present study indicates that the palatine tonsils are probably a major sites of GdIgA1-producing cells. However, in some patients these cells may propagate to other lymphoid organs, which may partially explain the different responses observed to tonsillectomy alone. These findings help to clarify some of the clinical observations in the management of IgAN, and may highlight future directions for research.

Indexed as

Cohort StudiesFemaleGalactoseGlomerulonephritis, IGAGlucocorticoidsGlycosylationHematuriaHumansImmunoglobulin AMaleMethylprednisoloneProtein Processing, Post-TranslationalTonsillectomyTreatment OutcomeGalactoseGlucocorticoidsImmunoglobulin AMethylprednisolone

Identifiers

PMID24586974
PMCPMC3931817
OpenAlexW2061897900

What OpenQuestion holds

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LicenceCC BY
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.