Evidence map›Paper›PMID 26472135›Full record

ArticleJournal of neurotrauma2016

Trigeminal Pain Molecules, Allodynia, and Photosensitivity Are Pharmacologically and Genetically Modulated in a Model of Traumatic Brain Injury.

Brittany V Daiutolo, Ashley Tyburski, Shannon W Clark, Melanie B Elliott

Open access · greenAbstract read
In one paragraph

Article in Journal of neurotrauma, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 41 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
41citing papers in PubMed, 1 pooled it
2.9field-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

41 citing papers in PubMed, 1 synthesis or guideline pooled it, 70 citations in OpenAlex.

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  8. Biomarkers and Endophenotypes of Post-traumatic Headaches.Current pain and headache reports · 2024
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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

4 authors at 2 institutions in 1 country.

Brittany V DaiutoloDepartment of Neurological Surgery, Thomas Jefferson University , Philadelphia, Pennsylvania.
Ashley TyburskiDepartment of Neurological Surgery, Thomas Jefferson University , Philadelphia, Pennsylvania.
Shannon W ClarkDepartment of Neurological Surgery, Thomas Jefferson University , Philadelphia, Pennsylvania.
Melanie B ElliottDepartment of Neurological Surgery, Thomas Jefferson University , Philadelphia, Pennsylvania.
Neurological Surgery · USThomas Jefferson University · US

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

The pain-signaling molecules, nitric oxide synthase (NOS) and calcitonin gene-related peptide (CGRP), are implicated in the pathophysiology of post-traumatic headache (PTH) as they are for migraine. This study assessed the changes of inducible NOS (iNOS) and its cellular source in the trigeminal pain circuit, as well as the relationship between iNOS and CGRP after controlled cortical impact (CCI) injury in mice. The effects of a CGRP antagonist (MK8825) and sumatriptan on iNOS messenger RNA (mRNA) and protein were compared to vehicle at 2 weeks postinjury. Changes in CGRP levels in the trigeminal nucleus caudalis (TNC) in iNOS knockouts with CCI were compared to wild-type (WT) mice at 3 days and 2 weeks post injury. Trigeminal allodynia and photosensitivity were measured. MK8825 and sumatriptan increased allodynic thresholds in CCI groups compared to vehicle (p < 0.01), whereas iNOS knockouts were not different from WT. Photosensitivity was attenuated in MK8825 mice and iNOS knockouts compared to WT (p < 0.05). MK8825 and sumatriptan reduced levels of iNOS mRNA and iNOS immunoreactivity in the TNC and ganglia (p < 0.01). Differences in iNOS cellular localization were found between the trigeminal ganglia and TNC. Although the knockout of iNOS attenuated CGRP at 3 days (p < 0.05), it did not reduce CGRP at 2 weeks. CGRP immunoreactivity was found in the meningeal layers post-CCI, while negligible in controls. Findings support the importance of interactions between CGRP and iNOS in mediating allodynia, as well as the individual roles in photosensitivity. Mitigating prolonged increases in CGRP may be a promising intervention for treating acute PTH.

Indexed as

Disease Models, AnimalAnimalsBrain Injuries, TraumaticCalcitonin Gene-Related PeptideHyperalgesiaMaleMiceMice, Inbred C57BLMice, KnockoutNitric Oxide Synthase Type IIPhotic StimulationPhotosensitivity DisordersPyridinesRandom AllocationSpiro CompoundsSumatriptanCalcitonin Gene-Related PeptideMK-8825Nitric Oxide Synthase Type IINos2 protein, mousePyridinesSpiro CompoundsSumatriptanpainpost-traumatic headachepost-traumatic migrainetraumatic brain injurytrigeminovascular system

Identifiers

PMID26472135
PMCPMC4840831
OpenAlexW1691566859

What OpenQuestion holds

Textmetadata
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.