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Oxidative Medicine and Cellular Longevity
Volume 2016, Article ID 2906953, 14 pages
Research Article

Neurobehavioral and Antioxidant Effects of Ethanolic Extract of Yellow Propolis

1Programa de Pós-Graduação em Ciências Farmacêuticas, Instituto de Ciências da Saúde, Universidade Federal do Pará, Belém, PA, Brazil
2Programa de Pós-Graduação em Neurociências e Biologia Celular, Belém, PA, Brazil
3Departamento de Química, Universidade Estadual do Centro-Oeste (UNICENTRO), 85010-990 Guarapuava, PR, Brazil
4Departamento de Química, Universidade Federal de São Carlos (UFSCar), 13565-905 São Carlos, SP, Brazil
5Laboratório de Farmacologia da Inflamação e do Comportamento, Faculdade de Farmácia, Instituto de Ciências da Saúde, Universidade Federal do Pará, 66075-900 Belém, PA, Brazil

Received 13 July 2016; Revised 8 September 2016; Accepted 19 September 2016

Academic Editor: Giuseppe Cirillo

Copyright © 2016 Cinthia Cristina Sousa de Menezes da Silveira et al. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.


Propolis is a resin produced by bees from raw material collected from plants, salivary secretions, and beeswax. New therapeutic properties for the Central Nervous System have emerged. We explored the neurobehavioral and antioxidant effects of an ethanolic extract of yellow propolis (EEYP) rich in triterpenoids, primarily lupeol and β-amyrin. Male Wistar rats, 3 months old, were intraperitoneally treated with Tween 5% (control), EEYP (1, 3, 10, and 30 mg/kg), or diazepam, fluoxetine, and caffeine (positive controls) 30 min before the assays. Animals were submitted to open field, elevated plus maze, forced swimming, and inhibitory avoidance tests. After behavioral tasks, blood samples were collected through intracardiac pathway, to evaluate the oxidative balance. The results obtained in the open field and in the elevated plus maze assay showed spontaneous locomotion preserved and anxiolytic-like activity. In the forced swimming test, EEYP demonstrated antidepressant-like activity. In the inhibitory avoidance test, EEYP showed mnemonic activity at 30 mg/kg. In the evaluation of oxidative biochemistry, the extract reduced the production of nitric oxide and malondialdehyde without changing level of total antioxidant, catalase, and superoxide dismutase, induced by behavioral stress. Our results highlight that EEYP emerges as a promising anxiolytic, antidepressant, mnemonic, and antioxidant natural product.