Evidence map›Paper›PMID 36862654›Full record

ArticlePloS one2023

cnm-positive Streptococcus mutans is associated with galactose-deficient IgA in patients with IgA nephropathy.

Taro Misaki, Shuhei Naka, Hitoshi Suzuki, Mingfeng Lee, Ryosuke Aoki, Yasuyuki Nagasawa, Daiki Matsuoka, Seigo Ito, Ryota Nomura, Michiyo Matsumoto-Nakano and 2 more

Open access · goldAbstract read
In one paragraph

Article in PloS one, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
1.6field-weighted citation impact, top 18% 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

9 citing papers in PubMed, 8 citations in OpenAlex.

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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

12 authors at 6 institutions in 1 country.

Taro MisakiDivision of Nephrology, Seirei Hamamatsu General Hospital, Hamamatsu, Shizuoka, Japan.ORCID 0000-0002-0476-2550
Shuhei NakaDepartment of Pediatric Dentistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Okayama, Japan.
Hitoshi SuzukiDepartment of Nephrology, Juntendo University Faculty of Medicine, Hongo, Bunkyo-ku, Tokyo, Japan.ORCID 0000-0002-1901-2111
Mingfeng LeeDepartment of Nephrology, Juntendo University Faculty of Medicine, Hongo, Bunkyo-ku, Tokyo, Japan.
Ryosuke AokiDepartment of Nephrology, Juntendo University Faculty of Medicine, Hongo, Bunkyo-ku, Tokyo, Japan.
Yasuyuki NagasawaDepartment of General Internal Medicine, Department of Internal Medicine, Hyogo College of Medicine, Nishinomiya, Hyogo, Japan.
Daiki MatsuokaDepartment of Pediatric Dentistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Okayama, Japan.
Seigo ItoDepartment of Internal Medicine, Japan Self-Defense Iruma Hospital, Iruma, Saitama, Japan.
Ryota NomuraDepartment of Pediatric Dentistry, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan.
Michiyo Matsumoto-NakanoDepartment of Pediatric Dentistry, Okayama University Graduate School of Medicine, Dentistry and Pharmaceutical Sciences, Okayama, Okayama, Japan.
Yusuke SuzukiDepartment of Nephrology, Juntendo University Faculty of Medicine, Hongo, Bunkyo-ku, Tokyo, Japan.
Kazuhiko NakanoDivision of Oral Infection and Disease Control, Department of Pediatric Dentistry, Osaka University Graduate School of Dentistry, Suita, Osaka, Japan.
Juntendo University · JPOkayama University · JPHiroshima University · JPHyogo Medical University · JPSeirei Christopher University · JPThe University of Osaka · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The presence of Streptococcus mutans expressing Cnm protein encoded by cnm (cnm-positive S. mutans) in the oral cavity is associated with immunoglobulin A (IgA) nephropathy (IgAN). However, the precise mechanism by which cnm-positive S. mutans is involved in the pathogenesis of IgAN remains unclear. The present study evaluated glomerular galactose-deficient IgA1 (Gd-IgA1) to clarify the association between the presence of cnm-positive S. mutans and glomerular Gd-IgA1 in patients with IgAN. The presence of S. mutans and cnm-positive S. mutans was evaluated by polymerase chain reaction in saliva specimens from 74 patients with IgAN or IgA vasculitis. Immunofluorescent staining of IgA and Gd-IgA1 using KM55 antibody in clinical glomerular tissues was then performed. There was no significant association between the glomerular staining intensity of IgA and the positive rate of S. mutans. However, there was a significant association between the glomerular staining intensity of IgA and the positive rate of cnm-positive S. mutans (P < 0.05). There was also a significant association between the glomerular staining intensity of Gd-IgA1 (KM55) and the positive rate of cnm-positive S. mutans (P < 0.05). The glomerular staining intensity of Gd-IgA1 (KM55) was not associated with the positive rate of S. mutans. These results suggest that cnm-positive S. mutans in the oral cavity is associated with the pathogenesis of Gd-IgA1 in patients with IgAN.

Indexed as

Glomerulonephritis, IGAGalactoseHumansImmunoglobulin AStreptococcus mutansGalactosegalactosyl-deficient IgA1Immunoglobulin A

Identifiers

PMID36862654
PMCPMC9980772
OpenAlexW4322757488

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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.