ArticlePain2009
Activation of TRPV1 and TRPA1 leads to muscle nociception and mechanical hyperalgesia.
Article in Pain, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 63 papers.
What it found
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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.
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.
Who cites it
63 citing papers in PubMed, 115 citations in OpenAlex.
- Bidirectional crosstalk between TRP channels and Toll-like receptors in inflammation and host defense.Journal of neuroinflammation · 2026Review
- A highly efficient method to differentiate CGRP-expressing peptidergic nociceptors from human induced pluripotent stem cells.Stem cell reports · 2026Article
- Enhancing orofacial pain relief: α-phellandrene complexed with hydroxypropyl-β-cyclodextrin mitigates orofacial nociception in rodents.Naunyn-Schmiedeberg's archives of pharmacology · 2025Article
- Beyond the Toll-Like Receptor 4. Structure-Dependent Lipopolysaccharide Recognition Systems: How far are we?ChemMedChem · 2025Review
- Involvement of the Transient Receptor Channels in Preclinical Models of Musculoskeletal Pain.Current neuropharmacology · 2024Review
- Effects of Chaerophyllum macropodum Boiss. leaves essential oil in inflammatory and neuropathic pain: uncovering the possible mechanism of action.Inflammopharmacology · 2023Article
- Topical application of a TRPA1 antagonist reduced nociception and inflammation in a model of traumatic muscle injury in rats.Inflammopharmacology · 2023Article
- Sensory Neuron-TRPV4 Modulates Temporomandibular Disorder Pain Via CGRP in Mice.The journal of pain · 2023Review
- Intraganglionic reactive oxygen species mediate inflammatory pain and hyperalgesia through TRPA1 in the rat.Frontiers in pain research (Lausanne, Switzerland) · 2023Article
- Preclinical orofacial pain assays and measures and chronic primary orofacial pain research: where we are and where we need to go.Frontiers in pain research (Lausanne, Switzerland) · 2023Review
- Review
- Anti-Irritant Strategy against Retinol Based on the Genetic Analysis of Korean Population: A Genetically Guided Top-Down Approach.Pharmaceutics · 2021Article
- 17β-Estradiol Exacerbated Experimental Occlusal Interference-Induced Chronic Masseter Hyperalgesia by Increasing the Neuronal Excitability and TRPV1 Function of Trigeminal Ganglion in Ovariectomized Rats.International journal of molecular sciences · 2021Article
- Transient Receptor Potential (TRP) Ion Channels in Orofacial Pain.Molecular neurobiology · 2021Review
- Transient Receptor Potential Vanilloid Subtype 1: Potential Role in Infection, Susceptibility, Symptoms and Treatment of COVID-19.Frontiers in medicine · 2021Review
- Potential Interplay between Nrf2, TRPA1, and TRPV1 in Nutrients for the Control of COVID-19.International archives of allergy and immunology · 2021Review
- Grand Challenges in Musculoskeletal Pain Research: Chronicity, Comorbidity, Immune Regulation, Sex Differences, Diagnosis, and Treatment Opportunities.Frontiers in pain research (Lausanne, Switzerland) · 2020Article
- Neural Pathways of Craniofacial Muscle Pain: Implications for Novel Treatments.Journal of dental research · 2020Review
- PJournal of pain research · 2020Article
- The Role of Transient Receptor Potential (TRP) Channels in the Transduction of Dental Pain.International journal of molecular sciences · 2019Review
3 more citing papers are in PubMed but not listed here.
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
3 authors at 2 institutions in 2 countries.
Funding
Abstract
The involvement of TRPV1 and TRPA1 in mediating craniofacial muscle nociception and mechanical hyperalgesia was investigated in male Sprague-Dawley rats. First, we confirmed the expression of TRPV1 in masseter afferents in rat trigeminal ganglia (TG), and provided new data that TRPA1 is also expressed in primary afferents innervating masticatory muscles in double-labeling immunohistochemistry experiments. We then examined whether the activation of each TRP channel in the masseter muscle evokes acute nocifensive responses and leads to the development of masseter hypersensitivity to mechanical stimulation using the behavioral models that have been specifically designed and validated for the craniofacial system. Intramuscular injections with specific agonists for TRPV1 and TRPA1, capsaicin and mustard oil (MO), respectively, produced immediate nocifensive hindpaw responses followed by prolonged mechanical hyperalgesia in a concentration-dependent manner. Pretreatment of the muscle with a TRPV1 antagonist, capsazepine, effectively attenuated the capsaicin-induced muscle nociception and mechanical hyperalgesia. Similarly, pretreatment of the muscle with a selective TRPA1 antagonist, AP18, significantly blocked the MO-induced muscle nociception and mechanical hyperalgesia. We confirmed these data with another set of selective antagonist for TRPV1 and TRPA1, AMG9810 and HC030031, respectively. Collectively, these results provide compelling evidence that TRPV1 and TRPA1 can functionally contribute to muscle nociception and hyperalgesia, and suggest that TRP channels expressed in muscle afferents can engage in the development of pathologic muscle pain conditions.
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What OpenQuestion holds
Registered trials
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.