Caryocar brasiliense camb protects against genomic and oxidative damage in urethane-induced lung carcinogenesis

The antioxidant effects of Caryocar brasiliense Camb, commonly known as the pequi fruit, have not been evaluated to determine their protective effects against oxidative damage in lung carcinogenesis. In the present study, we evaluated the role of pequi fruit against urethane-induced DNA damage and o...

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Main Authors: Colombo, N. B. R., Rangel, M. P., Silva, Vanessa Martins da, Hage, Marcia, Gelain, Daniel Pens, Barbeiro, Denise Frediani, Grisolia, Cesar Koppe, Parra, Edwin Roger Parra, Capelozzi, Vera Luiza
Format: Artigo
Language: English
Published: Associação Brasileira de Divulgação Científica 2017
Subjects:
Online Access: http://repositorio.unb.br/handle/10482/29582
http://dx.doi.org/10.1590/1414-431X20154467
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Summary: The antioxidant effects of Caryocar brasiliense Camb, commonly known as the pequi fruit, have not been evaluated to determine their protective effects against oxidative damage in lung carcinogenesis. In the present study, we evaluated the role of pequi fruit against urethane-induced DNA damage and oxidative stress in forty 8-12 week old male BALB/C mice. An in vivo comet assay was performed to assess DNA damage in lung tissues and changes in lipid peroxidation and redox cycle antioxidants were monitored for oxidative stress. Prior supplementation with pequi oil or its extract (15 µL, 60 days) significantly reduced urethane-induced oxidative stress. A protective effect against DNA damage was associated with the modulation of lipid peroxidation and low protein and gene expression of nitric oxide synthase. These findings suggest that the intake of pequi fruit might protect against in vivo genotoxicity and oxidative stress.