Allium Cepa Test
Mostrando 13-24 de 40 artigos, teses e dissertações.
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13. Genotoxic potential of the latex from cotton-leaf physicnut (Jatropha gossypiifolia L.)
Jatropha gossypiifolia L. (Euphorbiaceae), popularly known as cotton-leaf physicnut, is a milky shrub notable for its medicinal properties. The present study aimed to evaluate the toxic, cytotoxic and genotoxic effects of the latex of J. gossypiifolia, using Allium cepa L. as test system. Seeds of A. cepa were exposed to five concentrations of the latex (1.2
Genet. Mol. Biol.. Publicado em: 2015-03
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14. Chromatographic analysis and antiproliferative potential of aqueous extracts of Punica granatum fruit peels using the Allium cepa test
Punica granatum L., conhecida como romanzeira, é originária da Ásia e encontra-se distribuída por todo Brasil. É usada para o tratamento de doenças inflamatórias, infecciosas e respiratórias. Em decorrência da grande utilização de recursos fitoterápicos, é necessário esclarecer à população sobre a grande quantidade de substâncias existente
Braz. J. Pharm. Sci.. Publicado em: 2015-03
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15. Cytotoxic and genotoxic potential of liquid synthetic food flavorings evaluated alone and in combination
This study aimed to evaluate the cytotoxic and genotoxic potential of food flavorings (Strawberry, Condensed Milk and Chocolate) on Allium cepa meristematic root cells, with exposure times of 24 and 48 hours. Cytotoxic and mutagenic potential were evaluated separately at doses of 0.2, 0.4 and 0.6 ml and in combination, in which for each dose, the same dose o
Food Sci. Technol. Publicado em: 2015-03
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16. Avaliação da toxicidade de efluente sanitário tratado e condicionado para aplicação na agricultura, utilizando Allium cepa, Daphnia similis e Vibrio fischeri, como organismos-teste / Toxicity assessment of treated sanitary effluent for application in agriculture, using Allium cepa, Vibrio fischeri and Daphnia similis as test organisms
O uso de efluente tratado na agricultura irrigada constitui uma alternativa adequada para a preservação de mananciais, além de ser uma importante fonte de nutrientes. No entanto, os riscos de toxicidade devem ser avaliados. Testes ecotoxicológicos apresentam-se como uma ferramenta apropriada, devido à sensibilidade dos organismos e sua ampla aceitação
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 22/08/2012
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17. Exposure to particulate matter 2.5 mM collected at high traffic routes in Rio de Janeiro city: evaluation mutagenic, genotoxic and determination of health risks induced by polycyclic aromatic hydrocarbons / Exposição ao material particulado 2,5 m coletado em vias de alto tráfego da cidade do Rio de Janeiro: avaliação mutagênica, genotóxica e determinação de risco à saúde induzido por hidrocarbonetos policíclicos aromáticos
The mutagenicity of airborne particles from combustion is attributed primarily to polycyclic aromatic hydrocarbons (PAHs). We investigated the mutagenic activity of particulate matter (PM2.5) samples collected from three sites in Rio de Janeiro. Samples were collected using a high-volume sampler at Avenida Brasil, the campus of the Rio de Janeiro State Unive
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 15/02/2012
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18. AVALIAÇÃO DO POTENCIAL ANTIPROLIFERATIVO, GENOTÓXICO E ANTIMUTAGÊNICO DAS ESPÉCIES Psychotria brachypoda (MÜLL. ARG.) BRITON E Psychotria birotula SMITH &DOWNS (RUBIACEAE) / EVALUATION OF THE ANTIPROLIFERATIVE, GENOTOXIC AND ANTIMUTAGENIC POTENTIAL OF THE SPECIES Psychotria brachypoda (MÜLL. ARG.) BRITON E Psychotria birotula SMITH &DOWNS (RUBIACEAE)
Species of the genus Psychotria L. are used in Brazilian folk medicine as tea, however, their indiscriminate and uncontrolled can cause more harm than good to health. It is important to understand these plants, from their cellular levels to the action on living organisms, and for monitoring toxic substances allelopathic bioassays are widely used with plant s
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 17/01/2012
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19. Evaluation of genotoxic and mutagenic effects of aqueous extract from aerial parts of Linaria genistifolia subsp. genistifolia
Genotoxic and mutagenic effects of aqueous extract from aerial parts Linaria genistifolia (L.) Mill. subsp. genistifolia, Plantaginaceae (Lg-ext) were investigated by using both Allium cepa root meristematic cells and bacterial reverse mutation assay in Salmonella typhimurium TA98 and TA100 with or without metabolic activation system (S9), respectively. In A
Revista Brasileira de Farmacognosia. Publicado em: 2012
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20. Genotoxicity test of Maytenus rigida and Aristolochia birostris in the radicular meristem of the onion, Allium cepa
Medicinal plants are an important source of treatment for many ailments, although little is known of the potential genotoxic effects of most species. In the present study, two species from diverse and medicinally important genera - Maytenus rigida Mart., Celastraceae, and Aristolochia birostris Ducht, Aristolochiaceae - were analyzed to identify potentially
Revista Brasileira de Farmacognosia. Publicado em: 30/09/2011
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21. EL USO DE ACTIVIDAD DE LATORATORIO DE BIOLOGÍA PARA LA ENSENANZA DE MATEMÁTICA EN LOS AÑOS INICIALES: UNA ESTRATEGIA INTERDICIPLINARIA DE ENSEÑANZA Y APRENDIZAJE
Aiming interdisciplinary and considering the difficulties in the process of teaching and learning, this paper has articulated a methodolog ical proposal between Biology and Mathematics, developed by two groups of 4th year of Basic Education of public and private institutions in Brazil, where activities have been conducted using laboratory practice of Science
Ens. Pesqui. Educ. Ciênc. (Belo Horizonte). Publicado em: 2010-12
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22. Atividade mutagênica em bacia hidrográfica influenciada por sítio de contaminação de solos
A região objeto do presente estudo compreende uma área localizada às margens do rio Taquari, no município de Triunfo (RS), que pertence à bacia hidrográfica Taquari – Antas, com contaminação de solo específica por preservantes de madeira, cujo passivo ambiental são pentaclorofenol, creosoto e hidrosal arseniato de cobre cromado. O local é percor
Publicado em: 2010
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23. Determination of the antimutagenicity of an aqueous extract of Rhizophora mangle L. (Rhizophoraceae), using in vivo and in vitro test systems
An aqueous extract of Rhizophora mangle L. bark is used as raw material in pottery making in the State of Espirito Santo, Brazil. This extract presents large quantities of tannins, compounds possessing antioxidant properties. Tannin antioxidant activity, as a plant chemical defense mechanism in the process of stabilizing free radicals, has been an incentive
Genetics and Molecular Biology. Publicado em: 18/12/2009
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24. Genotoxicity assessment of a pharmaceutical effluent using four bioassays
Pharmaceutical industries are among the major contributors to industrial waste. Their effluents when wrongly handled and disposed of endanger both human and environmental health. In this study, we investigated the potential genotoxicity of a pharmaceutical effluent, by using the Allium cepa, mouse- sperm morphology, bone marrow chromosome aberration (CA) and
Genetics and Molecular Biology. Publicado em: 2009