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Miranda-Vilela,Ana L.; Resck,Inês S.; Grisolia,Cesar K.. |
The daily consumption of natural antioxidants protects against oxidative damage caused by reactive oxygen species (ROS), including DNA damage, and can reduce the risk of cancer, atherosclerosis and other degenerative diseases. The pulp of pequi (Caryocar brasiliense Camb.) fruit, a tree native to the Brazilian savannah, contains several compounds with antioxidant properties, including carotenoids, vitamin C, phenolic compounds such as flavonoids, saponins and tannins, and essential oils. In this work, we examined the ability of organic and aqueous extracts of pequi fruit pulp to protect against the genotoxicity induced by two antineoplastic drugs, cyclophosphamide (CP) and bleomycin (BLM). Micronucleus tests with mouse bone marrow cells and single-cell gel... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Antigenotoxic; Antioxidant; Caryocar brasiliense; Comet assay; Micronucleus; Pequi pulp extracts; Reactive oxygen species; TBARS assay. |
Ano: 2008 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572008000500025 |
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Khouri,Juliana; Resck,Inês S.; Poças-Fonseca,Marcio; Sousa,Thiago M.M.; Pereira,Luciana O.; Oliveira,Adriano B.B.; Grisolia,Cesar K.. |
The effectiveness of an aqueous extract of Caryocar brasiliense (Caryocaraceae) Camb pulp, popularly known in Brazil as pequi, against clastogenicity induced by cyclophosphamide and bleomycin was evaluated using an in vivo mouse bone marrow cell micronuclei test, an in vitro Chinese hamster ovary cell (CHO-K1) chromosome aberration test and an in vitro antioxidant assay based on the oxidative damage to 2-deoxy-D-ribose (2-DR) induced by hydroxyl radicals (OH) generated by the reaction between ascorbic acid and (Fe III)-EDTA. In mouse bone marrow cells the extract showed a protective effect against micronuclei induced by cyclophosphamide and bleomycin but did not interfere with polychromatic bone marrow erythrocyte proliferation, except when the mice had... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Caryocar brasiliense; Anticlastogenicity; Antioxidant; Micronucleus. |
Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572007000300024 |
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