Evidence map›Paper›PMID 24506953›Full record

ArticleThe journal of headache and pain2014

Release of CGRP from mouse brainstem slices indicates central inhibitory effect of triptans and kynurenate.

Charlotte Kageneck, Barbara E Nixdorf-Bergweiler, Karl Messlinger, Michael Jm Fischer

Open access · goldAbstract read
In one paragraph

Article in The journal of headache and pain, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 25 papers.

0numbers the graph read from it
0cells of the map it votes in
25citing papers in PubMed
4.1field-weighted citation impact, top 6% 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

25 citing papers in PubMed, 61 citations in OpenAlex.

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  13. Review
  14. Cross-talk signaling in the trigeminal ganglion: role of neuropeptides and other mediators.Journal of neural transmission (Vienna, Austria : 1996) · 2020
    Review
  15. Review
  16. Current understanding of trigeminal ganglion structure and function in headache.Cephalalgia : an international journal of headache · 2019
    Review
  17. Trigeminovascular calcitonin gene-related peptide function in Cacna1a R192Q-mutated knock-in mice.Journal of cerebral blood flow and metabolism : official journal of the International Society of Cerebral Blood Flow and Metabolism · 2019
    Article
  18. A new era in headache treatment.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology · 2018
    Review
  19. Targeted CGRP Small Molecule Antagonists for Acute Migraine Therapy.Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics · 2018
    Review
  20. 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

4 authors at 1 institution in 1 country.

Charlotte Kageneck
Barbara E Nixdorf-Bergweiler
Karl Messlinger
Michael Jm FischerInstitute of Physiology and Pathophysiology, University of Erlangen-Nuremberg, Universitaetsstrasse, 91054 Erlangen, Germany. fischer@physiologie1.uni-erlangen.de.
Friedrich-Alexander-Universität Erlangen-Nürnberg · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundCGRP is contained in a substantial proportion of unmyelinated trigeminal neurons innervating intracranial tissues. Previously, we have described a hemisected rodent scull preparation and later the intact trigeminal ganglion to measure stimulated CGRP release from trigeminal afferents.

methodsHere, we establish a preparation for examining CGRP release from central trigeminal terminals using single fresh slices of the mouse medullary brainstem.

resultsBasal and stimulated amount of CGRP substantially exceeded the detection level. Experiments were designed as matched pairs of at least six brainstem slices per animal. Stimulation with high potassium induced calcium-dependent and reversible CGRP release. Capsaicin stimulation of TRPV1 provoked concentration-dependent CGRP release. The anti-migraine drug naratriptan did not inhibit capsaicin-induced CGRP release from peripheral terminals but inhibited the release from brainstem slices. The glutamate antagonist kynurenate showed a similar pattern of site-specific inhibition of CGRP release.

conclusionsAs observed earlier for other drugs used in the treatment of migraine this indicates that the central terminals in the spinal trigeminal nucleus may be the main site of action. The preparation allows evaluating the trigeminal brainstem as a pharmacological site of action.

Indexed as

AnimalsBrain StemCalcitonin Gene-Related PeptideCapsaicinDose-Response Relationship, DrugFemaleKynurenic AcidMaleMiceMice, Inbred C57BLNeural InhibitionOrgan Culture TechniquesPiperidinesRats, Sprague-DawleyTryptaminesCalcitonin Gene-Related PeptideCapsaicinKynurenic AcidnaratriptanPiperidinesTryptamines

Identifiers

PMID24506953
PMCPMC3922191
OpenAlexW2120094905

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.