Evidence map›Paper›PMID 31430262›Full record

ArticlePain2019

Females have greater susceptibility to develop ongoing pain and central sensitization in a rat model of temporomandibular joint pain.

Sébastien Sannajust, Ian Imbert, Victoria Eaton, Terry Henderson, Lucy Liaw, Meghan May, Mary F Barbe, Tamara King

Open access · greenAbstract read
In one paragraph

Article in Pain, 2019. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed, 2 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

24 citing papers in PubMed, 2 syntheses or guidelines pooled it, 40 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

8 authors at 4 institutions in 1 country.

Sébastien SannajustDepartment of Biomedical Sciences, College of Osteopathic Medicine, Biddeford, ME, United States.
Ian ImbertDepartment of Biomedical Sciences, College of Osteopathic Medicine, Biddeford, ME, United States.
Victoria EatonDepartment of Biomedical Sciences, College of Osteopathic Medicine, Biddeford, ME, United States.
Terry HendersonCenter for Molecular Medicine, Maine Medical Center Research Institute, Scarborough, ME, United States.
Lucy LiawCenter for Molecular Medicine, Maine Medical Center Research Institute, Scarborough, ME, United States.
Meghan MayDepartment of Biomedical Sciences, College of Osteopathic Medicine, Biddeford, ME, United States.
Mary F BarbeDepartment of Anatomy and Cell Biology, Temple University, Lewis Katz School of Medicine, Philadelphia, PA, United States.
Tamara KingDepartment of Biomedical Sciences, College of Osteopathic Medicine, Biddeford, ME, United States.
University of New England · USMaine Medical Center · USMaine Medical Center Research Institute · USTemple University · US

Funding

Understanding Factors Influencing COVID-19 Testing and Vaccination in Immigrant Low-income and Homeless Populations and Testing Targeted InterventionsU54GM115516 · NIGMS · MAINEHEALTH · PI CLIFFORD JAMES ROSEN · 2017 to 2026
$51.6M
Tissue resident macrophages in sensory ganglia: function and impact on nociceptionP20GM103643 · NIGMS · UNIVERSITY OF NEW ENGLAND · PI MENG, IAN D · 2012 to 2021
$20.9M
NIGMS NIH HHS P20 GM103643NIGMS NIH HHS U54 GM115516
6 · The paper itself

Abstract

Temporomandibular joint osteoarthritis (TMJOA) is a prevalent source of temporomandibular joint disorder (TMD). Women are more commonly diagnosed with TMD and are more likely to seek care at tertiary orofacial pain clinics. Limited knowledge regarding mechanisms underlying temporomandibular joint (TMJ) pain impairs development of improved pain management strategies. In a rat model of unilateral TMJOA, monosodium iodoacetate (MIA) produces joint pathology in a concentration-dependent manner. Unilateral MIA produces alterations in meal patterns in males and females without altering overnight time spent eating or weight across 2 weeks. Monosodium iodoacetate (80 mg/mL)-treated males develop ongoing pain within 2 weeks after MIA injection. Females develop ongoing pain at a 5-fold lower MIA concentration (16.6 mg/m). Monosodium iodoacetate (80 mg/mL)-treated males show spread of tactile hypersensitivity across the face during the first week after injection and then to the fore paws and hind paws during the second week after injection, indicating development of central sensitization. At the lower dose, female rats demonstrate a similar spread of tactile hypersensitivity, whereas male rats do not develop ongoing pain or spread of tactile hypersensitivity outside the area of the ipsilateral temporomandibular joint. These observations indicate that females have a higher susceptibility to development of ongoing pain and central sensitization compared with male rats that is not due to differences in MIA-induced joint pathology. This model of TMJOA pain can be used to explore sex differences in pain processes implicated in development of neuropathic pain, ongoing pain, and central sensitization, allowing for development of individualized strategies for prevention and treatment of TMD joint pain.

Indexed as

Disease Models, AnimalSex CharacteristicsAnimalsDisease SusceptibilityFemaleMalePain MeasurementRatsRats, Sprague-DawleyTemporomandibular Joint Dysfunction SyndromeX-Ray Microtomography

Identifiers

PMID31430262
PMCPMC7092504
OpenAlexW2943606239

What OpenQuestion holds

Textmetadata
LicenceTDM
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.