Evidence map›Paper›PMID 31205695›Full record

ArticleSAGE open medicine2019

Fatigue in primary Sjögren's syndrome: A proteomic pilot study of cerebrospinal fluid.

Eivind Larssen, Cato Brede, Anne Hjelle, Anne Bolette Tjensvoll, Katrine Brække Norheim, Kjetil Bårdsen, Kristin Jonsdottir, Peter Ruoff, Roald Omdal, Mari Mæland Nilsen

Open access · goldAbstract read
In one paragraph

Article in SAGE open medicine, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 1 pooled it
1.6field-weighted citation impact, top 17% 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, 1 synthesis or guideline pooled it, 21 citations in OpenAlex.

  1. Genetic variants at theRMD open · 2021
    Pooled it
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  10. Genetic Variants of theFrontiers in immunology · 2022
    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 2 institutions in 1 country.

Eivind LarssenResearch Department, Stavanger University Hospital, Stavanger, Norway.
Cato BredeDepartment of Medical Biochemistry, Stavanger University Hospital, Stavanger, Norway.ORCID https://orcid.org/0000-0003-2691-6052
Anne HjelleResearch Department, Stavanger University Hospital, Stavanger, Norway.
Anne Bolette TjensvollDepartment of Neurology, Stavanger University Hospital, Stavanger, Norway.
Katrine Brække NorheimClinical Immunology Unit, Department of Internal Medicine, Stavanger University Hospital, Stavanger, Norway.
Kjetil BårdsenResearch Department, Stavanger University Hospital, Stavanger, Norway.
Kristin JonsdottirDepartment of Pathology, Stavanger University Hospital, Stavanger, Norway.
Peter RuoffCentre for Organelle Research (CORE), University of Stavanger, Stavanger, Norway.
Roald OmdalClinical Immunology Unit, Department of Internal Medicine, Stavanger University Hospital, Stavanger, Norway.ORCID https://orcid.org/0000-0002-6051-4658
Mari Mæland NilsenResearch Department, Stavanger University Hospital, Stavanger, Norway.
Stavanger University Hospital · NOUniversity of Stavanger · NO

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesFatigue is a frequent and often disabling phenomenon that occurs in patients with chronic inflammatory and immunological diseases, and the underlying biological mechanisms are largely unknown. Because fatigue is generated in the brain, we aimed to investigate cerebrospinal fluid and search for molecules that participate in the pathophysiology of fatigue processes.

methodsA label-free shotgun proteomics approach was applied to analyze the cerebrospinal fluid proteome of 20 patients with primary Sjögren's syndrome. Fatigue was measured with the fatigue visual analog scale.

resultsA total of 828 proteins were identified and the 15 top discriminatory proteins between patients with high and low fatigue were selected. Among these were apolipoprotein A4, hemopexin, pigment epithelium-derived factor, secretogranin-1, secretogranin-3, selenium-binding protein 1, and complement factor B.

conclusionMost of the discriminatory proteins have important roles in regulation of innate immunity, cellular stress defense, and/or functions in the central nervous system. These proteins and their interacting protein networks may therefore have central roles in the generation and regulation of fatigue, and the findings contribute with evidence to the concept of fatigue as a biological phenomenon signaled through specific molecular pathways.

Indexed as

Braincerebrospinal fluidfatigueproteomicssickness behaviorSjögren’s syndrome

Identifiers

PMID31205695
PMCPMC6537061
OpenAlexW2945493216

What OpenQuestion holds

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LicenceCC BY-NC
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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.