Confirmation of ethnopharmacological anti-inflammatory properties of Ocotea odorifera and determination of its main active compounds
| Autor: | Rejane Barbosa de Oliveira, Albert Katchborian-Neto, Bianca Gonçalves Vasconcelos de Alcântara, Daniela Aparecida Chagas-Paula, Ana Cláudia Chagas de Paula, Danielle Ferreira Dias, Rosana Casoti, Felipe Policarpo de Oliveira, Marisi G. Soares, Mario F.C. Santos, Olívia da Silva Domingos |
|---|---|
| Rok vydání: | 2020 |
| Předmět: |
medicine.drug_class
Ethyl acetate Anti-Inflammatory Agents Ocotea odorifera Decoction Anti-inflammatory law.invention 03 medical and health sciences chemistry.chemical_compound Mice 0302 clinical medicine In vivo law Drug Discovery medicine Oils Volatile Animals Edema Plant Oils Essential oil 030304 developmental biology Pharmacology Reticuline 0303 health sciences biology Traditional medicine Plant Extracts Alkaloid biology.organism_classification Plant Leaves chemistry Ocotea 030220 oncology & carcinogenesis Ethnopharmacology Brazil |
| Zdroj: | Journal of ethnopharmacology. 264 |
| ISSN: | 1872-7573 |
| Popis: | Ethnopharmacological relevance Ocotea odorifera (Vell.) Rohwer has been used in traditional medicine in the south of Brazil for the treatment of inflammatory-related conditions, such as rheumatism. However, there is not any scientific evidence for popular use. Aims of the study To investigate the O. odorifera anti-inflammatory potential and identification of the main active compounds through metabolomic approaches. Materials and methods In order to in vivo evaluate the inhibition of the main inflammatory pathways, the leaf decoction, leaf extract, its fractions and the essential oils from leaves and branches were submitted to the ear oedema and the neutrophils recruitment assays. The samples were chemically investigated by UHPLC-HRMS or GC-MS. The multivariate statistical analysis (PLS-DA) was used to determine the substances correlated with the anti-inflammatory properties. Results The in vivo studies indicated a promissory anti-inflammatory effect on both oedema and neutrophil recruitment for some samples including the decoction; hydroethanolic, ethyl acetate, and chloroform fractions; and the essential oils. According to the PLS-DA, the S-(+)-reticuline was evidenced as one of the three compounds of the plant most correlated with both anti-inflammatory mechanisms. Thus, S-(+)-reticuline was isolated and the anti-inflammatory activity was confirmed. Moreover, for the first time, the dual inhibition of oedema and neutrophil recruitment was uncovered and reported. Another compound positively correlated with the anti-inflammatory activity is likely to be a new compound since zero hit on the comprehensive mass database were encountered. The compounds found in the essential oils also showed significant anti-inflammatory activity, and thus indeed the plant has different classes of active substances. Conclusions The decoction of O. odorifera and different fractions from its ethanolic extract demonstrated anti-inflammatory activity through dual inhibition of oedema and neutrophil recruitment. Thus, corroborating the popular medicinal use of the decoction of leaves from O. odorifera as an anti-inflammatory medicine. Besides, reticuline, one of the main active compounds, was isolated and proved to display the dual mechanism of action, indicating the O. odorifera as a promising source of active compounds for the treatment of inflammatory conditions. |
| Databáze: | OpenAIRE |
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