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Anti-inflammatory and Antinociceptive Activities of the Hydroalcoholic Extract and the Volatile Fraction of Southeastern Brazilian Brown Propolis

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Abstract

The analgesic and anti-inflammatory activities of a Southeastern Brazilian brown propolis were evaluated using the formalin test and carrageenan-induced mechanical hypernociception. The hydroalcoholic extract and the volatile fraction were evaluated at doses of 50, 100, and 200 mg/kg. In the formalin test, the crude extract reduced the response by 73, 83, and 89% for the first phase and 48, 65, and 75% for the second phase, respectively. The volatile fraction reduced the response by 75, 94, and 99% and 30, 53, and 91% for the first and second phases. For the carrageenan test, the hydroalcoholic extract and volatile fraction showed mechanical sensitization reductions of 57, 67, and 79% and 62, 79, and 88%, respectively, after 48 h. Indomethacin and morphine showed inhibitions of 42 and 88%, respectively. In the tail-flick assay, the results showed evidence of analgesic activities; the animals treated with crude extract increased the nociceptive threshold by 58 ± 8% and 70 ± 6% and 77 ± 10%, respectively, for evaluated doses, and 55 ± 6% and 73 ± 7% and 82 ± 14% for the volatile fraction, compared with control. The coadministration of naloxone altered the antinociceptive effect of morphine and propolis, suggesting that brown propolis has an action on the central nervous system.

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Funding

This work received financial support from the São Paulo Research Foundation (FAPESP) (Process Numbers 2017/08386-6 and 2017/04138-8).

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Authors and Affiliations

Authors

Contributions

VPR and JKB were responsible for the study’s design. VPR, GVS, and JAAM performed the anti-inflammatory and antinociceptive experiments. VPR and CA performed phytochemical analysis. JAAM helped with the treatment and discussion of the results. VPR wrote the manuscript, and JKB supervised the study and reviewed the manuscript. All the authors have approved the manuscript.

Corresponding author

Correspondence to Jairo Kenupp Bastos.

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Conflict of Interest

The authors declare that they have no conflict of interest.

Animal Study

The experiment protocols were approved by the by the Ethics and Research Council on the Use of Animals of the School of Pharmaceutical Sciences of Ribeirão Preto of the University of São Paulo (Process No. 18.1.834.60.1, March 1, 2019). All experiments were carried out under the Ethical Principles of Animal Experimentation recommended by the Brazilian College of Animal Experimentation (COBEA).

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Ribeiro, V.P., Símaro, G.V., Mejia, J.A.A. et al. Anti-inflammatory and Antinociceptive Activities of the Hydroalcoholic Extract and the Volatile Fraction of Southeastern Brazilian Brown Propolis. Rev. Bras. Farmacogn. 31, 59–66 (2021). https://doi.org/10.1007/s43450-020-00122-5

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  • DOI: https://doi.org/10.1007/s43450-020-00122-5

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