Evidence map›Paper›PMID 29802544›Full record

ArticleThe journal of headache and pain2018

Dihydroergotamine inhibits the vasodepressor sensory CGRPergic outflow by prejunctional activation of α

Abimael González-Hernández, Jair Lozano-Cuenca, Bruno A Marichal-Cancino, Antoinette MaassenVanDenBrink, Carlos M Villalón

Open access · goldAbstract read
In one paragraph

Article in The journal of headache and pain, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 6 papers.

0numbers the graph read from it
0cells of the map it votes in
6citing papers in PubMed
0.8field-weighted citation impact, top 28% 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

6 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 3 institutions in 2 countries.

Abimael González-HernándezDepartamento de Farmacobiología, Cinvestav-Coapa, Tenorios 235, Col. Granjas-Coapa, Deleg. Tlalpan, 14330, Ciudad de México, México.
Jair Lozano-CuencaDepartamento de Farmacobiología, Cinvestav-Coapa, Tenorios 235, Col. Granjas-Coapa, Deleg. Tlalpan, 14330, Ciudad de México, México.
Bruno A Marichal-CancinoDepartamento de Farmacobiología, Cinvestav-Coapa, Tenorios 235, Col. Granjas-Coapa, Deleg. Tlalpan, 14330, Ciudad de México, México.
Antoinette MaassenVanDenBrinkDivision of Vascular Medicine and Pharmacology, Erasmus University Medical Center, P.O. Box 2040, 3000, CA, Rotterdam, The Netherlands.
Carlos M VillalónDepartamento de Farmacobiología, Cinvestav-Coapa, Tenorios 235, Col. Granjas-Coapa, Deleg. Tlalpan, 14330, Ciudad de México, México. cvillalon@cinvestav.mx.ORCID http://orcid.org/0000-0003-4117-1343
Centro de Investigación y de Estudios Avanzados del Instituto Politécnico Nacional · MXAutonomous University of Aguascalientes · MXErasmus MC · NL

Funding

Consejo Nacional de Ciencia y Tecnología 219707Netherlands Organization for Scientific Research VIDI 917.11.349
6 · The paper itself

Abstract

backgroundDihydroergotamine (DHE) is an antimigraine drug that produces cranial vasoconstriction and inhibits trigeminal CGRP release; furthermore, it inhibits the vasodepressor sensory CGRPergic outflow, but the receptors involved remain unknown. Prejunctional activation of α

methodsPithed rats were pretreated i.v. with hexamethonium (2 mg/kg·min) followed by continuous infusions of methoxamine (20 μg/kg·min) and DHE (3.1 μg/kg·min). Then, stimulus-response curves (spinal electrical stimulation; T

resultsDHE inhibited the vasodepressor responses to electrical stimulation (0.56-5.6 Hz), without affecting those to i.v. α-CGRP (0.1-1 μg/kg). This inhibition by DHE (not produced by the methoxamine infusions): (i) was abolished by pretreatment with the combination of the antagonists rauwolscine (α

conclusionDHE-induced inhibition of the vasodepressor sensory CGRPergic outflow is mainly mediated by prejunctional rauwolscine-sensitive α

Indexed as

Adrenergic AgonistsAnimalsBlood PressureCalcitonin Gene-Related PeptideDihydroergotamineDisease Models, AnimalDose-Response Relationship, DrugElectric StimulationMaleRatsRats, WistarReceptors, AdrenergicReceptors, Serotonin, 5-HT1Serotonin 5-HT1 Receptor AgonistsVasoconstrictionVasoconstrictor AgentsAdrenergic AgonistsCalcitonin Gene-Related PeptideDihydroergotamineReceptors, AdrenergicReceptors, Serotonin, 5-HT1Serotonin 5-HT1 Receptor AgonistsVasoconstrictor AgentsCGRPDihydroergotaminePithed ratSensory neuronsVasodepressor responses

Identifiers

PMID29802544
PMCPMC5970131
OpenAlexW2806184970

What OpenQuestion holds

Textmetadata
LicenceCC BY
Read underepoch 390

Registered trials

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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.