Evidence map›Paper›PMID 39044165›Full record

ArticleThe journal of headache and pain2024

Elevated cytokine levels in the central nervous system of cluster headache patients in bout and in remission.

Caroline Ran, Felicia Jennysdotter Olofsgård, Katrin Wellfelt, Anna Steinberg, Andrea Carmine Belin

Abstract read
In one paragraph

Article in The journal of headache and pain, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 11 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
11citing papers in PubMed, 1 pooled it
–field-weighted citation impact
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

11 citing papers in PubMed, 1 synthesis or guideline pooled it.

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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.

Caroline RanCentre for Cluster Headache, Department of Neuroscience, Karolinska Institutet, Stockholm, Sweden. caroline.ran@ki.se.
Felicia Jennysdotter OlofsgårdCentre for Cluster Headache, Department of Neuroscience, Karolinska Institutet, Stockholm, Sweden.
Katrin WellfeltCentre for Cluster Headache, Department of Neuroscience, Karolinska Institutet, Stockholm, Sweden.
Anna Steinberg *Department of Clinical Neuroscience, Karolinska Institutet, Stockholm, Sweden.
Andrea Carmine Belin *Centre for Cluster Headache, Department of Neuroscience, Karolinska Institutet, Stockholm, Sweden.

Funding

Swedish Brain Foundatio FO2023-0223
6 · The paper itself

Abstract

backgroundCluster headache is characterized by activation of the trigeminovascular pathway with subsequent pain signalling in the meningeal vessels, and inflammation has been suggested to play a role in the pathophysiology. To further investigate inflammation in cluster headache, inflammatory markers were analysed in patients with cluster headache and controls.

methodsWe performed a case-control study, collecting cerebrospinal fluid and serum samples from healthy controls, cluster headache patients in remission, active bout, and during an attack to cover the dynamic range of the cluster headache phenotype. Inflammatory markers were quantified using Target 48 OLINK cytokine panels.

resultsAltered levels of several cytokines were found in patients with cluster headache compared to controls. CCL8, CCL13, CCL11, CXCL10, CXCL11, HGF, MMP1, TNFSF10 and TNFSF12 levels in cerebrospinal fluid were comparable in active bout and remission, though significantly higher than in controls. In serum samples, CCL11 and CXCL11 displayed decreased levels in patients. Only one cytokine, IL-13 was differentially expressed in serum during attacks. CONCLUSION AND

interpretationOur data shows signs of possible neuroinflammation occurring in biological samples from cluster headache patients. Increased cerebrospinal fluid cytokine levels are detectable in active bout and during remission, indicating neuroinflammation could be considered a marker for cluster headache and is unrelated to the different phases of the disorder.

Indexed as

Cluster HeadacheCytokinesAdultBiomarkersCase-Control StudiesFemaleHumansMaleMiddle AgedNeuroinflammatory DiseasesBiomarkersCytokinesChemokinesHeadacheInflammationNeuroinflammation

Identifiers

PMID39044165
PMCPMC11267889

What Socratic 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 Socratic graph.