2002
DOI: 10.1590/s0102-695x2002000100002
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Avaliação da atividade mutagênica do extrato etanólico bruto de Paepalanthus latipes (Eriocaulaceae) e dos compostos flavonoídicos 7-metoxilados relacionados

Abstract: RESUMO:Paepalanthus latipes (Silveira) é uma das plantas brasileiras nativas da Serra do Cipó, Minas Gerais, conhecida como sempre-vivas e muito exportada para os Estados Unidos, Europa e Japão, por seu valor ornamental. Poucos resultados são relatados quanto à atividade biológica destas plantas. Este trabalho teve como objetivo avaliar a atividade mutagênica do extrato etanólico bruto de P. latipes e de dois flavonóides 7-metoxilados dele isolados (7-metilquercetagetina e 7-metilquercetagetina-4 -O-β-D-glicop… Show more

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Cited by 9 publications
(5 citation statements)
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“…Neither citotoxicity nor mutagenicity was observed suggesting that B. monandra infusion is not able to induce mutagenic lesion in a cell free system. Studies assess the toxic action of plant extracts through various tests (Silva et al, 2006;Vasconcelos et al, 2007;Dias et al, 2007, within which the test is Allium cepa, which is a plant species commonly used to evaluate genotoxicity of chemical and environmental products (Smaka-Kincl et al, 1996;Moreira et al, 2002;Jos et al, 2005;Bagatini et al, 2007;Fachinetto et al, 2007) through the presence of micronuclei (MN), what derived from whole chromosomes or acentric fragments not incorporated into the nucleus during cell division. The chromosome fragments can result from clastogenic effects caused by chemical substances or aneugenic effects where chromosome is lost from mitotic spindles (Yi and Meng, 2003).…”
Section: Discussionmentioning
confidence: 99%
“…Neither citotoxicity nor mutagenicity was observed suggesting that B. monandra infusion is not able to induce mutagenic lesion in a cell free system. Studies assess the toxic action of plant extracts through various tests (Silva et al, 2006;Vasconcelos et al, 2007;Dias et al, 2007, within which the test is Allium cepa, which is a plant species commonly used to evaluate genotoxicity of chemical and environmental products (Smaka-Kincl et al, 1996;Moreira et al, 2002;Jos et al, 2005;Bagatini et al, 2007;Fachinetto et al, 2007) through the presence of micronuclei (MN), what derived from whole chromosomes or acentric fragments not incorporated into the nucleus during cell division. The chromosome fragments can result from clastogenic effects caused by chemical substances or aneugenic effects where chromosome is lost from mitotic spindles (Yi and Meng, 2003).…”
Section: Discussionmentioning
confidence: 99%
“…Two flavonoids ( 34 and 36 ) were isolated, and the mutagenic activity of the metabolites and the crude extract was evaluated against different mutant strains of Salmonella typhimurium (TA98 and TA100). None of the flavonoids nor the crude extract showed mutagenic activity induction in bacteria [ 36 ]. Eleven years later, another study with aerial parts of the same plant obtained the same metabolites.…”
Section: Resultsmentioning
confidence: 99%
“…O teste de ames baseia-se na utilização de cepas indicadoras de S. typhimurium, sensíveis a substâncias capazes de induzir diferentes tipos de mutação. Na presença de agentes mutagênicos, estas cepas revertem seu caráter de auxotrofia para a síntese de histidina e passam a formar colônias em um meio desprovido deste aminoácido (Moreira, Santos, Varella, Varanda, & Vilegas, 2002).…”
Section: Resultsunclassified