Evidence map›Paper›PMID 34135691›Full record

ArticleMediators of inflammation2021

Vagal Nerve Stimulation-Modulation of the Anti-Inflammatory Response and Clinical Outcome in Psoriatic Arthritis or Ankylosing Spondylitis.

C Brock, S E Rasmussen, A M Drewes, H J Møller, B Brock, B Deleuran, A D Farmer, M Pfeiffer-Jensen

Registry-linked trialOpen access · goldAbstract readComparative Study
In one paragraph

Article in Mediators of inflammation, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT07653009 (The Effect of Transcutaneous Auricular Vagus Nerve Stimulation on Disease Activity and Related Clinical Parameters in Patients With Psoriatic Arthritis), which is not on this map. Cited by 24 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 1 pooled it
1.8field-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.

NCT07653009 narecruitingnot on this mapstarted 2026, after this paper: background citation

The Effect of Transcutaneous Auricular Vagus Nerve Stimulation on Disease Activity and Related Clinical Parameters in Patients With Psoriatic Arthritis

TypeinterventionalSponsorMarmara UniversityRan2026 to 2027Enrolled15ConditionsPsoriatic ArthritisArmsTranscutaneous Auricular Vagus Nerve Stimulation (taVNS)
3 · Its place in the literature

Who cites it

24 citing papers in PubMed, 1 synthesis or guideline pooled it, 32 citations in OpenAlex.

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  14. Neuroimmune Control of Inflammation in Acute Kidney Injury and Multiorgan Dysfunction.Journal of the American Society of Nephrology : JASN · 2025
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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

8 authors at 5 institutions in 2 countries.

C BrockMech-Sense, Department of Gastroenterology and Hepatology, Clinical Institute, Aalborg University Hospital, Aalborg, Denmark.ORCID https://orcid.org/0000-0002-3381-1884
S E RasmussenDepartment of Rheumatology, Aarhus University Hospital, Aarhus, Denmark.ORCID https://orcid.org/0000-0002-9884-6375
A M DrewesDepartment of Rheumatology, Aarhus University Hospital, Aarhus, Denmark.ORCID https://orcid.org/0000-0003-4370-6997
H J MøllerDepartment of Clinical Biochemistry, Aarhus University Hospital, Denmark.ORCID https://orcid.org/0000-0001-7687-5995
B BrockSteno Diabetes Center Copenhagen, Region Hovedstaden, Gentofte, Denmark.ORCID https://orcid.org/0000-0002-1598-6023
B DeleuranDepartment of Rheumatology, Aarhus University Hospital, Aarhus, Denmark.ORCID https://orcid.org/0000-0002-7079-1587
A D FarmerCentre for Trauma and Neuroscience, Blizard Institute, Wingate Institute of Neurogastroenterology, Barts and the London School of Medicine & Dentistry, Queen Mary University of London, London, UK.ORCID https://orcid.org/0000-0003-1902-2640
M Pfeiffer-JensenDepartment of Rheumatology, Aarhus University Hospital, Aarhus, Denmark.ORCID https://orcid.org/0000-0001-7013-8281
Aarhus University Hospital · DKAalborg University Hospital · DKQueen Mary University of London · GBSteno Diabetes Centers · DKUniversity of Copenhagen · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesThe vagal nerve exerts an essential pathway in controlling the cholinergic anti-inflammatory reflex. Thus, the study is aimed at investigating the acute effect of a noninvasive transcutaneous vagus nerve stimulation on clinical disease activity and systemic levels of inflammation in patients with psoriatic arthritis or ankylosing spondylitis.

methodsTwenty patients with psoriatic arthritis (PsA) and 20 patients with ankylosing spondylitis (AS) were included and stimulated bilaterally with a handheld vagal nerve stimulator for 120 seconds 3 times a day for 5 consecutive days. All patients were in remission. Cardiac vagal tone, clinical scores, CRP, and cytokine levels were assessed.

resultsIn PsA and AS, decreased heart rate was observed, confirming compliance. Furthermore, in PsA, a clear reduction of clinical disease activity associated with a 20% reduction in CRP was shown. In AS, a reduction in interferon-

conclusionThis open-label study provides support for an anti-inflammatory effect of transcutaneous vagus nerve stimulation in patients with psoriatic arthritis and ankylosing spondylitis. The modulated immune response and reduced disease activity and CRP-levels raise the fascinating possibility of using neuromodulation as an add-on to existing pharmacological treatments.

Indexed as

AdultAnti-Inflammatory AgentsArthritis, PsoriaticCohort StudiesC-Reactive ProteinCytokinesFemaleHumansInflammationInterleukin-10Interleukin-8MaleMiddle AgedSeverity of Illness IndexSpondylitis, AnkylosingTreatment OutcomeAnti-Inflammatory AgentsC-Reactive ProteinCXCL8 protein, humanCytokinesIL10 protein, humanInterleukin-10Interleukin-8

Identifiers

PMID34135691
PMCPMC8175141
OpenAlexW3165329877

What OpenQuestion holds

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LicenceCC BY
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Registered trials

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.