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GC/MS analysis and antinociception of Clusia minor


Article published in Journal of Pharmacy & Pharmacognosy Research 7(1): 21-30, 2019

Gas Chromatography/Mass Spectrometry characterization and antinociceptive effects of the ethanolic extract of the leaves from Clusia minor L.

Raisa Mangas1*, Gledys Reynaldo1, Maria T. Dalla Vecchia2, Kendely Aver2, Leonardo G. Piovesan2, Adonis Bello3, Idania Rodeiro4, Angela Malheiros2, Marcia M. de Souza2, Roberto Menéndez5

1Department of Pharmacy, Institute of Pharmacy and Food (IFAL), University of Havana, 23 Ave., 21425, La Coronela, La Lisa, Havana, Cuba.
2Núcleo de Investigações Químico-Farmacêuticas (NIQFAR), Universidade do Vale do Itajaí (UNIVALI), Rua Uruguai, 458, Itajaí, SC, Brazil.
3Faculty of Chemical Sciences, University of Guayaquil, Ciudadela Universitaria Dr. Salvador Allende, Guayaquil, Ecuador.
4Department of Pharmacology, Institute of Marine Sciences (ICIMAR), Loma and 37, Vedado, Havana, Cuba.
5Cuban Neurosciences Center, 25 Ave., 5202, Cubanacan, Playa, Havana, Cuba.

*E-mail: raisam@ifal.uh.curaisamm80@gmail.com

Abstract

Context: The search of new substances with analgesic properties has grown in the last years. Brazil and Cuba have a big biodiversity allowing the study of several plants with potential pharmacological activities.

Aims: To evaluate the chemical composition and potential antinociceptive effect of the ethanolic extract from Clusia minor L. leaves (Clusiaceae) in mice.

Methods: Phytochemical characterization was performed by Gas Chromatography/Mass Spectrometry. Antinociceptive effect was evaluated using acetic acid, formalin, hot plate, and capsaicin models. Mechanical hypernociception was induced by intraplantar carrageenan, tumor necrosis factor α (TNFα) and prostagladin E2 (PGE2) and responses were measured after 3 h of injection.

Results: Mass Spectrometry analysis allowed the identification of 16 compounds. Fatty acid derivatives, steroids, triterpenoids, and vitamin E were the main findings. The most abundant sterol was β-sitosterol (14.04%); followed by the triterpenes α-amyrin (11.94%), and β-amyrin (7.82%). Vitamin E represented the 8.44% of the total identified compounds. The evaluation of the acetic acid-induced nociception model showed that the extract was effective in reducing pain in a dose-dependent manner. This resulted in a maximal inhibition of 53 ± 4%. The extract was also effective in other pain models. Additionally, the extract presented a considerable inhibition of paw mechanical hypernociception.

Conclusions: The data suggest that the antinociceptive effect of Clusia minor occurs by interaction of various mechanisms; which probably take places via central and peripheral pathway. Therefore, modulating the inflammatory and neurogenic pain.

 

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Información

Esta entrada fue publicada el 20 de enero de 2019 por en Analytical Chemistry, Cytokines, Hypernociception, Medicinal plants, Nociception, Pain Management.

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