Natural product research · 2020
Cytotoxicity, mutagenicity and acute oral toxicity of aqueous Ocotea minarum leaf extracts.
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Dantas Fabiana Gomes da Silva, Araújo Renata Pires de, de Almeida-Apolonio Adriana Araújo, de Castilho Pamella Fukuda, Oliveira Galvão Fernanda de, Negri Melyssa, Oesterreich Silvia Aparecida, Cardoso Claudia Andrea Lima, Oliveira Kelly Mari Pires de
Аннотация
Ocotea minarum (Nees & Mart.) Mez., a native species of Brazil, is used in the treatment of infections and oxidative stress; however, there is no scientific evidence of its toxicological characteristics. We assessed the cytotoxicity, mutagenic activity, and acute oral toxicity of the aqueous extract isolated from O. minarum leaves. The cytotoxicity of this extract was evaluated in tumour and non-tumour cell lines, while the Ames test with a Salmonella Typhimurium was used to determine the mutagenic activity. Wistar rats received a single 2 g/kg dose as part of an LD50 toxicity assessment. Our results showed that the aqueous extract of O. minarum leaves did not present cytotoxic and mutagenic properties and was not toxic, with an LD50 greater than 2 g/kg. Therefore, the O. minarum extracts are pharmacologically safe and can continue to be investigated for the development of new drugs and herbal medicines.