Evidence map›Paper›PMID 28505104›Full record

ArticleMolecules (Basel, Switzerland)2017

Identification and Validation of SAA4 as a Rheumatoid Arthritis Prescreening Marker by Liquid Chromatography Tandem-mass Spectrometry.

AeEun Seok, Hyun-Jung Lee, Sungeun Lee, Jiyeong Lee, Sora Mun, Arum Park, Yeon-Tae Chun, Jae-Hyeon Lee, Hee-Joung Lim, Hee-Gyoo Kang

Open access · goldAbstract read
In one paragraph

Article in Molecules (Basel, Switzerland), 2017. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed
1.1field-weighted citation impact, top 22% 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

13 citing papers in PubMed, 17 citations in OpenAlex.

  1. SAA4: An Underdog Within the Serum Amyloid a Superfamily?International journal of molecular sciences · 2026
    Review
  2. Elevated Serum Amyloid A2 and A4 in Patients With Guillain-Barré Syndrome.Journal of clinical neurology (Seoul, Korea) · 2025
    Article
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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 3 institutions in 1 country.

AeEun SeokLaboratory of Signal Transduction and Disease Biomarker Discovery, Department of Senior Healthcare, BK21 Plus Program, Graduate School, Eulji University, Daejeon 34824, Korea. anne3082@gmail.com.
Hyun-Jung LeeDepartment of Biomedical Laboratory Science, College of Health Sciences, Eulji University, Seongnam-si, Gyeonggi-do 13135, Korea. poopilove@hanmail.net.
Sungeun LeeResearch Institute of DongDeok Pharmaceutical, Chungcheongbuk-do 27864, Korea. sungelee982@gmail.com.
Jiyeong LeeDepartment of Biomedical Laboratory Science, College of Health Sciences, Eulji University, Seongnam-si, Gyeonggi-do 13135, Korea. bjssw@naver.com.
Sora MunLaboratory of Signal Transduction and Disease Biomarker Discovery, Department of Senior Healthcare, BK21 Plus Program, Graduate School, Eulji University, Daejeon 34824, Korea. sora6456@naver.com.
Arum ParkLaboratory of Signal Transduction and Disease Biomarker Discovery, Department of Senior Healthcare, BK21 Plus Program, Graduate School, Eulji University, Daejeon 34824, Korea. sksskdi5959@naver.com.
Yeon-Tae ChunLaboratory of Signal Transduction and Disease Biomarker Discovery, Department of Senior Healthcare, BK21 Plus Program, Graduate School, Eulji University, Daejeon 34824, Korea. meetjeonyt@naver.com.
Jae-Hyeon LeeResearch Institute of DongDeok Pharmaceutical, Chungcheongbuk-do 27864, Korea. hyeon9139@gmail.com.
Hee-Joung LimForensic Science R&D Lab., Police Science Institute, Chungcheongnam-do 31539, Korea. limhj@police.go.kr.
Hee-Gyoo KangLaboratory of Signal Transduction and Disease Biomarker Discovery, Department of Senior Healthcare, BK21 Plus Program, Graduate School, Eulji University, Daejeon 34824, Korea. kanghg@eulji.ac.kr.
Eulji University · KRDongKook Pharmaceutical (South Korea) · KRKorean National Police University · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Rheumatoid arthritis (RA) is a chronic autoimmune disease that progresses into systemic inflammation and joint deformity. RA diagnosis is a complicated procedure, and early diagnostic methods are insufficient. Therefore, in this study, we attempted to identify new markers to improve the accuracy of RA prescreening. e identified differentially expressed proteins (DEPs) by using liquid chromatography tandem-mass spectrometry in health-prescreening sera with high rheumatoid factor (RF) values, and compared the findings with those from sera with normal RF values. We identified 93 DEPs; of these, 36 were upregulated, and 57 were downregulated in high-RF sera. Pathway analysis revealed that these DEPs were related to immune responses. Additionally, four DEPs were statistically analyzed by proteomic analysis; of these, SAA4 was significantly validated in individual enzyme-linked immunosorbent assays. Moreover, SAA4 was significantly upregulated in RA patients (n = 40, 66.43 ± 12.97 ng/mL) compared with normal controls (n = 40, 4.79 ± 0.95 ng/mL) and had a higher area under the curve than C-reactive protein. Thus, we identified SAA4 as a protein that was positively correlated with RF and RA. SAA4 may represent a novel prescreening marker for the diagnosis of RA.

Indexed as

AdultArthritis, RheumatoidBiomarkersChromatography, LiquidC-Reactive ProteinFemaleHumansMaleMiddle AgedProteomicsSerum Amyloid A ProteinTandem Mass SpectrometryBiomarkersC-Reactive ProteinSAA4 protein, humanSerum Amyloid A ProteinLC-MS/MSpre-screeningrheumatoid factorserum amyloid A4

Identifiers

PMID28505104
PMCPMC6154608
OpenAlexW2609921757

What OpenQuestion holds

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LicenceCC BY
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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.