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Publication Details
AFRICAN RESEARCH NEXUS
SHINING A SPOTLIGHT ON AFRICAN RESEARCH
biochemistry, genetics and molecular biology
Antioxidant activity of methanolic extract of Bombax ceiba
Redox Report, Volume 14, No. 1, Year 2009
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Description
The antioxidant activity of a methanolic extract of Bombax ceiba was evaluated using several antioxidant assays, in terms of its: (i) ability to scavenge DPPH (1,1-diphenyl-2-picryl-hydrazyl) and hydroxyl free radicals; (ii) action against lipid peroxidation (in rat liver microsomes and soy bean phosphatidylcholine liposomes), induced by ascorbyl radicals and peroxynitrite; and (iii) effect on myeloperoxidase activity. The cytotoxicity was monitored through the mitochondrial activity in the Vero cell line. The extract showed antioxidant activity in all assays, the EC50 (μg/ml) for DPPH was 87 and for lipid peroxidation of microsomes and soy bean liposomes induced by ascorbyl radicals were 141 and 105, respectively, and by peroxynitrite were 115 and 77, respectively. The K0.5 value for myeloperoxidase activity inhibition by the extract was 264 μg/ml. The extract showed very low toxicity toward Vero cells. © W. S. Maney and Son Ltd 2009.
Authors & Co-Authors
Vieira, Tiago O.
Brazil, Florianopolis
Universidade Federal de Santa Catarina
Said, Ataa
Egypt, Giza
National Research Centre
Aboutabl, Elsayed Ali
Egypt, Cairo
Faculty of Pharmacy
Azzam, Mona
Egypt, Giza
National Research Centre
Creczynski-Pasa, Tânia Beatriz
Brazil, Florianopolis
Universidade Federal de Santa Catarina
Statistics
Citations: 38
Authors: 5
Affiliations: 3
Identifiers
Doi:
10.1179/135100009X392485
ISSN:
13510002