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Anticlastogenic potential and antioxidant effects of an aqueous extract of pulp from the pequi tree (Caryocar brasiliense Camb) Genet. Mol. Biol.
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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Antigenotoxicity and antimutagenicity of ethanolic extracts of Brazilian green propolis and its main botanical source determined by the Allium cepa test system Genet. Mol. Biol.
Roberto,Matheus Mantuanelli; Jamal,Cláudia Masrouah; Malaspina,Osmar; Marin-Morales,Maria Aparecida.
Abstract Brazilian green propolis is a resinous substance prepared by bees from parts of the plant Baccharis dracunculifolia. As it possess several biological properties, this work assessed the cytotoxic/anticytotoxic, genotoxic/antigenotoxic and mutagenic/antimutagenic potential of ethanolic extracts of Brazilian green propolis (EEGP) and of B. dracunculifolia (EEBD), by means of the Allium cepa test system. The effects were evaluated by assessing the chromosomal aberrations (CA) and micronuclei (MN) frequencies on meristematic and F1 generation cells from onion roots. Chemical analyses performed with the extracts showed differences in flavonoid quality and quantity. No genotoxic or mutagenic potential was detected, and both extracts were capable of...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Chromosomal aberration; Micronucleus; Anticlastogenicity; Protective effects; Flavonoids.
Ano: 2016 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1415-47572016000200257
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