Evidence map›Paper›PMID 31875183›Full record

ArticlePain reports

Diurnal variation of inflammatory plasma proteins involved in pain.

Hajer Jasim, Anders Carlsson, Björn Gerdle, Malin Ernberg, Bijar Ghafouri

Open access · goldAbstract read
In one paragraph

Article in Pain reports. 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
1.2field-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

9 citing papers in PubMed, 13 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

5 authors at 2 institutions in 1 country.

Hajer JasimDivision of Oral Diagnostics and Rehabilitation, Department of Dental Medicine, Karolinska Institutet, Scandinavian Center for Orofacial Neuroscience (SCON), Huddinge, Sweden.
Anders CarlssonDepartment of Medical and Health Sciences, Pain and Rehabilitation Centre, Linköping University, Linköping, Sweden.
Björn GerdleDepartment of Medical and Health Sciences, Pain and Rehabilitation Centre, Linköping University, Linköping, Sweden.
Malin ErnbergDivision of Oral Diagnostics and Rehabilitation, Department of Dental Medicine, Karolinska Institutet, Scandinavian Center for Orofacial Neuroscience (SCON), Huddinge, Sweden.
Bijar GhafouriDepartment of Medical and Health Sciences, Pain and Rehabilitation Centre, Linköping University, Linköping, Sweden.
Linköping University · SEKarolinska Institutet · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionProteomics is a powerful approach for biochemical research because it directly studies the main functional components of biochemical systems. The understanding of the normal fluctuations of the proteome in health is essential to identify pain-specific biomarkers.

objectiveTo investigate fluctuations of the plasma proteome in healthy pain-free individuals.

methodsBlood samples were structurally collected in the early morning and evening from 10 clinically healthy individuals (26.3 ± 3.3 years). High abundant proteins were removed from plasma, and proteins were then analysed by nanoliquid chromatography combined with mass spectrometry. In addition, an assay of 71 cytokines/chemokines/growth factors was analysed.

resultsMultivariate statistical analysis displayed that there were up to 64 proteins whose expression levels were significantly altered between the plasma samples collected during the morning and evening; no changes existed for the assay. The levels of 34 proteins were increased and 30 proteins were decreased during the evening compared with the morning sample. The increased proteins were involved in the biological processes such as protein activation cascade, complement activation, and stress response. The decreased proteins were involved in regulation of endopeptidase activity, inflammatory response, and protein metabolic processes.

conclusionThe circadian variations in the plasma proteome stress the need to collect blood samples of both patients and controls at a fixed time of the day. The results in this study might be useful for better understanding of the complexity of individual variation in the human plasma proteome over time and provide a baseline for improved pain biomarker discovery.

Indexed as

DiurnalMass spectrometryNanoliquid chromatographyPlasmaProteomics

Identifiers

PMID31875183
PMCPMC6882578
OpenAlexW2967547572

What OpenQuestion holds

Textmetadata
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.