Evidence map›Paper›PMID 32228453›Full record

ArticleThe journal of headache and pain2020

Phase dependent hypothalamic activation following trigeminal input in cluster headache.

Laura H Schulte, Ame Abdu Haji, Arne May

Open access · goldAbstract read
In one paragraph

Article in The journal of headache and pain, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed, 1 pooled it
2.7field-weighted citation impact, top 9% 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

14 citing papers in PubMed, 1 synthesis or guideline pooled it, 28 citations in OpenAlex.

  1. Pooled it
  2. Review
  3. Article
  4. Hallmarks of primary headache: part 3 - cluster headache.The journal of headache and pain · 2025
    Review
  5. Review
  6. Review
  7. Review
  8. Cluster headache and kynurenines.The journal of headache and pain · 2023
    Article
  9. Review
  10. Review
  11. Review
  12. Review
  13. The molecular clock gene cryptochrome 1 (Cephalalgia : an international journal of headache · 2021
    Article
  14. Review
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

3 authors at 2 institutions in 1 country.

Laura H SchulteDepartment of Systems Neuroscience, University Medical Center Eppendorf, University of Hamburg, Hamburg, Germany.
Ame Abdu HajiDepartment of Systems Neuroscience, University Medical Center Eppendorf, University of Hamburg, Hamburg, Germany.
Arne MayDepartment of Systems Neuroscience, University Medical Center Eppendorf, University of Hamburg, Hamburg, Germany. a.may@uke.de.
University Medical Center Hamburg-Eppendorf · DEUniversität Hamburg · DE

Funding

Deutsche Forschungsgemeinschaft SFB936 Projekt A5
6 · The paper itself

Abstract

backgroundTask-free imaging approaches using PET have shown the posterior hypothalamus to be specifically activated during but not outside cluster headache attacks. Evidence from task related functional imaging approaches however is scarce.

methodsTwenty-one inactive cluster headache patients (episodic cluster headache out of bout), 16 active cluster headache patients (10 episodic cluster headache in bout, 6 chronic cluster headache) and 18 control participants underwent high resolution brainstem functional magnetic resonance imaging of trigeminal nociception using gaseous ammonia as a painful stimulus.

resultsFollowing trigeminonociceptive stimulation with ammonia there was a significantly stronger activation within the posterior hypothalamus in episodic cluster headache patients out of bout when compared to controls. When contrasting estimates of the pain contrast, active cluster headache patients where in between the two other groups but did not differ significantly from either.

conclusionThe posterior hypothalamus might thus be hyperexcitable in cluster headache patients outside the bout while excitability to external nociceptive stimuli decreases during in bout periods, probably due to frequent hypothalamic activation and possible neurotransmitter exhaustion during cluster attacks.

Indexed as

AdultBrain StemCluster HeadacheFemaleHumansHypothalamusMagnetic Resonance ImagingMaleMiddle AgedNociceptionPainBrainstem fMRICluster headacheHypothalamusNociceptive stimulation

Identifiers

PMID32228453
PMCPMC7106813
OpenAlexW3013930711

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.