Evidence map›Paper›PMID 26415740›Full record

ArticleClinical rheumatology2016

Prevalence of soluble peptidylarginine deiminase 4 (PAD4) and anti-PAD4 antibodies in autoimmune diseases.

Naoto Umeda, Isao Matsumoto, Hoshimi Kawaguchi, Yuko Kurashima, Yuya Kondo, Hiroto Tsuboi, Hiroshi Ogishima, Takeshi Suzuki, Yayoi Kagami, Takuya Sakyu and 3 more

Abstract read
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In one paragraph

Article in Clinical rheumatology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
1.9field-weighted citation impact, top 15% 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

14 citing papers in PubMed, 1 synthesis or guideline pooled it, 23 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

13 authors at 3 institutions in 1 country.

Naoto UmedaDepartment of Internal Medicine, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, 305-8575, Japan.
Isao MatsumotoDepartment of Internal Medicine, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, 305-8575, Japan. ismatsu@md.tsukuba.ac.jp.
Hoshimi KawaguchiDepartment of Internal Medicine, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, 305-8575, Japan.
Yuko KurashimaDepartment of Internal Medicine, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, 305-8575, Japan.
Yuya KondoDepartment of Internal Medicine, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, 305-8575, Japan.
Hiroto TsuboiDepartment of Internal Medicine, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, 305-8575, Japan.
Hiroshi OgishimaDepartment of Internal Medicine, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, 305-8575, Japan.
Takeshi SuzukiDepartment of Internal Medicine, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, 305-8575, Japan.
Yayoi KagamiMolecular Regulation of Aging, Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan.
Takuya SakyuBiotechnology Research Group, Fujirebio, Tokyo, Japan.
Akihito IshigamiMolecular Regulation of Aging, Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan.
Naoki MaruyamaMolecular Regulation of Aging, Tokyo Metropolitan Institute of Gerontology, Tokyo, Japan.
Takayuki SumidaDepartment of Internal Medicine, Faculty of Medicine, University of Tsukuba, 1-1-1 Tennodai, Tsukuba, 305-8575, Japan.
University of Tsukuba · JPTokyo Metropolitan Institute of Gerontology · JPFujirebio (Japan) · JP

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The objectives of this study are to investigate the prevalence of PAD4 and anti-PAD4 antibodies (Abs) in autoimmune diseases and to clarify their association with anticitrullinated protein antibodies (ACPAs) and shared epitope (SE) in patients with rheumatoid arthritis (RA). Levels of human PAD4 and anti-PAD4 Abs in serum or plasma were measured using sandwich ELISA. Samples were obtained from patients with RA (n = 148), SLE (n = 36), or SS (n = 37) and from healthy controls (HCs; n = 40). Antibodies against cyclic citrullinated glucose-6-phosphate isomerase (GPI) (CCG)-2, CCG-7, anti-CEP-1, and anti-CCP Abs were also measured using ELISA. Patients with RA were genotyped for HLA-DRB1. The human PAD4 and anti-PAD4 Ab levels were compared with the ACPA and SE in patients with RA. The PAD4 levels were 111.9 U/ml in the RA, 30.4 U/ml in the SLE, 81.9 U/ml in the SS patients, and 46.6 U/ml in the HCs. The PAD4 levels were significantly higher in the RA than in the SLE patients or the HCs. Anti-PAD4 Abs were detected in 29.7 % of the patients with RA, but not in the patients with SLE or SS, nor in the HCs. In the RA patients, the PAD4 levels in the anti-PAD4 Ab-negative group were significantly higher than those in the anti-PAD4 Ab-positive group. Moreover, anti-CCG-2, CCG-7, CEP-1, and anti-CCP Ab levels were significantly higher in the anti-PAD4 Ab-positive group than in the anti-PAD4 Ab-negative group. In the RA patients, the PAD4 levels were not correlated with ACPAs. Neither PAD4 nor anti-PAD4 Abs were significantly correlated with the presence of SE alleles. The PAD4 levels were higher in RA than in SLE or HC. Anti-PAD4 Abs appeared specifically in patients with RA. Moreover, anti-PAD4 Abs were associated with ACPAs.

Indexed as

AdolescentAdultAgedAllelesArthritis, RheumatoidAutoantibodiesEpitopesFemaleGenetic Predisposition to DiseaseGenotypeHumansHydrolasesLupus Erythematosus, SystemicMaleMiddle AgedPeptides, CyclicAutoantibodiescyclic citrullinated peptideEpitopesHydrolasesPeptides, CyclicProtein-Arginine DeiminasesAnticitrullinated protein antibodiesAnti-peptidylarginine deiminase 4 antibodiesPeptidylarginine deiminase 4Rheumatoid arthritisShared epitope

Identifiers

PMID26415740
OpenAlexW2206157289

What OpenQuestion holds

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Registered trials

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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.