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Avaliação da mutagenicidade e da estrogenicidade dos extratos etanólicos padronizados, frações e substâncias isoladas de Arrabidaea brachypoda (DC.) Bureau

Authors: Nogueira, Catarine Haidê;

Avaliação da mutagenicidade e da estrogenicidade dos extratos etanólicos padronizados, frações e substâncias isoladas de Arrabidaea brachypoda (DC.) Bureau

Abstract

A Arrabidaea brachypoda (DC.) Bureau, é um arbusto nativo do Cerrado pertencente a família Bignoniaceae, é conhecida como cipó-una ou tintureiro e popularmente utilizada no tratamento de artrite. Diversas atividades para esta espécie já foram reconhecidas, tais como antifúngica, antiviral, anti-inflamatória, efeito antinocicepitivo e anti-Tripanosoma cruzi, porém estudos que comprovem sua eficácia e segurança ainda são raros, sendo assim o objetivo desde trabalho foi avaliar a atividade mutagênica através do Teste de Ames e a atividade estrogênica através do ensaio de leveduras recombinantes (RYA) dos extratos, frações e substâncias isoladas de A. brachypoda. O Tesde de Ames foi realizado com as linhagens de Salmonella typhimurium TA100, TA98, TA97a e TA102, com e sem ativação metabólica pelo método de pré-incubação. O Teste RYA foi realizado com a linhagem de Saccharomyces cerevisiae BY4741 com os extratos das folhas, caules, raízes, suas respectivas frações e substâncias isoladas. Todos os extratos e também a fração aquosa das folhas de A. brachypoda mostraram atividade mutagênica e os extratos das folhas e das raízes também apresentaram atividade estrogênica. Os resultados contribuem para os conhecimentos sobre a segurança do uso desta espécie, portanto recomendamos cautela com seu uso devido os resultados positivos quanto à mutagenicidade e acreditamos que os riscos de efeitos adversos pela atuação como alteradores endócrinos sejam baixos.

The Arrabidaea brachypoda (DC.) Bureau, is a native of Cerrado shrub belonging to Bignoniaceae family, is known as vine-one or dyer and popularly used to treat arthritis. Several activity for this species have been recognized as an antifungal, antiviral, anti-inflammatory, antinocicepitivo effect and anti-Trypanosoma cruzi, but studies proving its effectiveness and safety are still rare, thus the objective since work was to evaluate the mutagenic activity through the Ames test and the estrogenic activity by testing recombinant yeast (RYA) of the extracts, fractions and compounds of A. brachypoda. The Ames Test was performed with Salmonella typhimurium strains TA100, TA98, TA97 and TA102, with and without metabolic activation by preincubation method. The RYA test was performed with Saccharomyces cerevisiae BY4741 strain with the extracts of the leaves, stalks, roots, their respective fractions and compounds. All the extracts and also the aqueous fraction of the leaves of A. brachypoda showed mutagenic activity and the extracts of leaves and roots also showed estrogenic activity. The results contribute to the knowledge about the safety of using this species, so we recommend caution with its use because the positive results regarding the mutagenicity and we believe that the risk of adverse effects by acting as endocrine changers is low.

Pós-graduação em Biociências e Biotecnologia Aplicadas à Farmácia - FCFAR

Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)

Country
Brazil
Keywords

Mutagenese, Testes de mutagenicidade, Bignoniacea, Medicinal plants, Artrite, Plantas medicinais, Saccharomyces cerevisiae

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selected citations
These citations are derived from selected sources.
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
BIP!Impulse provided by BIP!
0
Average
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