ArticleInflammopharmacology2026
Trans-Chalcone alleviates overt pain-like behavior by targeting the activation of nociceptive neuron TRPV1 and TRPA1 channels.
Article in Inflammopharmacology, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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Who cites it
3 citing papers in PubMed.
- Bioactive Natural and Synthetic Chalcones: Brazil as a Research Powerhouse in Discovery and Innovation.ChemMedChem · 2026Review
- Flavonoids as Nutraceuticals to Treat Inflammatory Diseases: Focusing on Quercetin, Kaempferol, Luteolin, Apigenin, Epicatechin and Their Effects on Hepatic, Nervous, and Pulmonary Systems.Foods (Basel, Switzerland) · 2026Review
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Authors and funding
12 authors.
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No grant is acknowledged in the PubMed record.
Abstract
objectiveTrans-Chalcone (TC) is an anti-inflammatory flavonoid that reduces hyperalgesia by targeting nuclear factor κB and inflammasome in gout arthritis model. However, a direct modulation of nociceptors by TC has never been investigated, which was the aim of the present study.
methodsExperimental models of overt pain-like behaviors were applied as the stimuli-induced behavior depends, at least in part, on nociceptive neuron activation by the stimuli themselves making them suitable to investigate if a drug candidate can inhibit nociceptive neuron activation. The selected models involve transient receptor potential (TRP) vanilloid 1 (V1)
resultsTC (10 mg/kg, per oral, 30 min pretreatment) inhibited abdominal contortions induced by acetic acid (58.8%) and phenyl-p-benzoquinone (PBQ-54.6%), and paw flinching (44 and 48%) and licking (38 and 46%) triggered by formalin and complete Freund's adjuvant (CFA-46 and 43%), indicating TC inhibits varied overt pain-like behaviors. Considering TRPV1 and TRPA1 channels are activated in those models, TC activity was also tested in experimental conditions in which capsaicin (a TRPV1 agonist)- and allyl isothiocyanate (AITC, a TRPA1 agonist)-triggered nociceptive behavior. TC inhibited capsaicin (44 and 37.5%) and AITC (35.1 and 52%) paw flinching and licking behavior. TC (3 μM) also reduced the calcium influx caused by capsaicin (30%) and AITC (37.6%) stimulation of primary dorsal root ganglia neurons. Additionally, TC inhibited CFA-induced hyperalgesia, paw inflammation without toxic effects.
conclusionsTC reduces overt pain-like behavior, at least in part, by inhibiting nociceptive neuron TRPV1 and TRPA1 channels activation.
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