• Pain Pract · Sep 2023

    Evaluation of antinociceptive effect and pharmacological mechanisms of thiocyanoacetamide in rats.

    • Amal Ben Othman, Ridha Ben Ali, Azaiez Ben Akacha, and Michèle Véronique El May.
    • Experimental Medicine Unit, Faculty of Medicine of Tunis, University of Tunis El Manar, Tunis, Tunisia.
    • Pain Pract. 2023 Sep 1; 23 (7): 704712704-712.

    ObjectiveAcute pain is the most common type of pain. The aim of the present work was carried out to study the antinociceptive effect and pharmacological mechanisms of thiocyanoacetamide (Thm) in rats exposed to thermal pain stimulus.Materials And MethodsThe anti-nociceptive effect of the newly synthesized compound, Thm was studied in comparison to that of paracetamol (Para), dexamethasone (Dex), and morphine (Morph) at different doses using a hot plate test at a constant temperature of 48.0 ± 0.5°C. During this test, the latency time (LT) was measured when rats express pain behavior. Then, the pharmacological mechanisms were determined using receptor-antagonist drugs.ResultsFirstly, the obtained result showed pain modulation of the pretreated rats with Thm at 10 mg/kg dose proved by the delay of latency time during the thermal test. This significant antinociceptive activity of the thiocyanoacetamide was more effective than that of paracetamol or dexamethasone and less than that of morphine. Second, the pretreatment with acebutolol or risperidone antagonist drugs of, respectively, adrenergic and serotonin receptors demonstrated the elimination of pain modulation with Thm 10 mg/kg dose proved by a short latency time of rat's response in hot plate test. In this case, the pharmacological mechanism of Thm was characterized by the involvement of adrenergic and serotoninergic systems.ConclusionsIt may be concluded that Thm constitutes a promising antinociceptive drug including beta-adrenergic and serotoninergic targets. The present study warrants further investigation to determine the side effects of this compound.© 2023 World Institute of Pain.

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