Chemical profile and anxiolytic- and anticonvulsant-like effects of Miconia albicans (Sw.) Triana (Melastomataceae) leaves in adult zebrafish

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Abstract
Pharmacognosy Magazine,2021,17,73,146-153.
Published:April 2021
Type:Original Article
Authors:
Author(s) affiliations:

Aimêe Veras Alexandre1, Fernanda Mota de Castro2, Francisco Lucas Alves Batista3, Sacha Aubrey Alves Rodrigues Santos1, Francisco Rogênio da Silva Mendes1, Nidyedja Goyanna Gomes Gonçalves1, Ana Cristina de Oliveira Monteiro-Moreira1, Ana Sheila Queiroz de Souza4, Kirley Marques Canuto5, Francisco Ernani Alves Magalhães6, Adriana Rolim Campos1
1 Experimental Biology Center, Universidade de Fortaleza, Fortaleza, Brazil
2 School of Physical Therapy, Christus University Center, Centro Universitário Christus, Fortaleza, Brazil
3 Department of Biological Chemistry, Regional University of Cariri, Crato, Brazil
4 Department of Pharmacy, Federal University of Ceará, Ceará, Brazil
5 Multiuser Laboratory of Chemistry of Natural Products, Embrapa Tropical Agroindustry, Fortaleza, Ceará, Brazil
6 Laboratory of Bioprospecting of Natural Products and Biotechnology, State University of Ceará, Tauá, Brazil

Abstract:

Background: Miconia albicans is a vegetable widely used in folk medicine as an alternative for the treatment of pain and inflammation. This study aimed to evaluate the chemical profile and anxiolytic- and anticonvulsant-like effects of the aqueous extract M. albicans leaves (CAVEL) in adult zebrafish. Materials and Methods: The antioxidant activity, chemical prospecting, and toxicity tests were performed. Then, the anxiolytic- and anticonvulsant-like effects were investigated in adult zebrafish. Results: It was detected the presence of flavonoids, xanthones, besides alkaloids, flavonoids, and polyphenols in CAVEL. Eighteen polyphenols and nine flavonoids were identified in CAVEL. CAVEL showed antioxidant activity and no cytotoxic potential. The effects of CAVEL in adult zebrafish were dependent on the route of administration: CAVEL (Per os [p.o.] and intraperitoneal [i.p.]) did not alter the locomotion of the animals, presented anxiolytic-like effect (p.o. and i.p.) and delayed anticonvulsant-like effect (p.o.). The anxiolytic-like effect was prevented by GABAergic receptor antagonist. M. albicans has pharmacological potential for the treatment of anxiety and anticonvulsant and these results support studies of isolation and characterization of bioactive principles. Conclusion: M. albicans has pharmacological potential for the treatment of anxiety and anticonvulsant and these results support studies of isolation and characterization of bioactive principles.

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Images
Fourier‑transform infrared spectra (400 to 4000 cm−1) of aqueous extract Miconia albicans leaves in water extracts
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