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Role of l-arginine/SNAP/NO/cGMP/KATP channel signalling pathway in antinociceptive effect of α-terpineol in mice.
Safaripour, Sara; Nemati, Yasaman; Parvardeh, Siavash; Ghafghazi, Shiva; Fouladzadeh, Anahita; Moghimi, Mahsa.
Afiliación
  • Safaripour S; Department of Pharmacology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
  • Nemati Y; Department of Pharmacology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
  • Parvardeh S; Department of Pharmacology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
  • Ghafghazi S; Department of Pharmacology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
  • Fouladzadeh A; Department of Pharmacology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
  • Moghimi M; Department of Pharmacology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran.
J Pharm Pharmacol ; 70(4): 507-515, 2018 Apr.
Article en En | MEDLINE | ID: mdl-29380385
OBJECTIVES: The main purpose of this study was to assess the role of l-arginine/SNAP/NO/cGMP/KATP channel pathway in analgesic effects of α-terpineol in mice. METHODS: Male NMRI mice were pretreated intraperitoneally with NO precursor (l-arginine, 100 mg/kg), NO synthase inhibitor (l-NAME, 30 mg/kg), NO donor (SNAP, 1 mg/kg), guanylyl cyclase inhibitor (methylene blue, 20 mg/kg), PDE inhibitor (sildenafil, 0.5 mg/kg), KATP channel blocker (glibenclamide, 10 mg/kg) and naloxone (2 mg/kg) 20 min before the administration of α-terpineol. The formalin test was performed 20 min after the administration of α-terpineol, and nociceptive responses of mice were recorded during 30 min. KEY FINDINGS: A significant and dose-dependent antinociception was produced by α-terpineol (40 and 80 mg/kg) in both the phases of formalin test. The antinociceptive effect of α-terpineol was significantly potentiated by l-arginine in the second phase while significantly antagonized by l-NAME in both phases of formalin test. Also, SNAP and sildenafil non-significantly enhanced-while methylene blue significantly diminished-the antinociceptive effect of α-terpineol in both phases of formalin test. Glibenclamide significantly reversed the α-terpineol-induced antinociception, indicating the involvement of KATP channels in antinociceptive effect of α-terpineol. CONCLUSIONS: These results indicate that the antinociceptive effect of α-terpineol is mediated through l-arginine/SNAP/NO/cGMP/KATP channel pathway.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Arginina / Dimensión del Dolor / GMP Cíclico / S-Nitroso-N-Acetilpenicilamina / Monoterpenos / Ciclohexenos / Canales KATP / Óxido Nítrico Límite: Animals Idioma: En Revista: J Pharm Pharmacol Año: 2018 Tipo del documento: Article País de afiliación: Irán Pais de publicación: Reino Unido
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Arginina / Dimensión del Dolor / GMP Cíclico / S-Nitroso-N-Acetilpenicilamina / Monoterpenos / Ciclohexenos / Canales KATP / Óxido Nítrico Límite: Animals Idioma: En Revista: J Pharm Pharmacol Año: 2018 Tipo del documento: Article País de afiliación: Irán Pais de publicación: Reino Unido