Chemical Carcinogenic
Mostrando 1-12 de 65 artigos, teses e dissertações.
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1. Acrylamide reduces plasma antioxidant vitamin levels in rats due to increased oxidative damage
RESUMO Objetivo A acrilamida é um químico potencialmente neurotóxico e carcinogênico, sendo naturalmente criada durante o processo de aquecimento de alimentos ricos em carboidratos, como batatas fritas e cereais matinais. Dado que o composto pode ser ingerido através do consumo de alimentos, o presente trabalho teve por objetivo investigar o seu efeito
Rev. Nutr.. Publicado em: 17/01/2020
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2. Preparation and application of Zero Valent Iron immobilized in Activated Carbon for removal of hexavalent Chromium from synthetic effluent
RESUMO Diferentemente dos contaminantes orgânicos, os metais pesados não são biodegradáveis e tendem a se acumular nos organismos vivos e também são reconhecidos por serem tóxicos ou carcinogênicos. A utilização de nanopartículas de ferro zero valente (nFVZ) é relatada como uma técnica alternativa e de elevado potencial para remediação in situ
Rev. Ambient. Água. Publicado em: 03/10/2019
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3. Avaliação de diferentes fatores na remoção de remazol brilliant blue de soluções aquosas por adsorção em fibras de cana de açúcar e coco verde
RESUMO As indústrias têxteis, durante o processo de tingimento, liberam uma grande quantidade de corantes na água. Além do seu efeito visual e seus impactos adversos em relação à fotossíntese e demanda química de oxigênio, muitos corantes sintéticos são tóxicos, recalcitrantes, mutagênicos e carcinogênicos. Dessa forma, novas alternativas de t
Matéria (Rio J.). Publicado em: 16/09/2019
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4. Ozone in polycyclic aromatic hydrocarbon degradation
Abstract Among energy sources from food, corn is a cereal with significant nutritional characteristics. However, during preprocessing, corn is subject to contamination by polycyclic aromatic hydrocarbons, which are considered carcinogenic, and gas ozone can be used as an alternative for decontamination. This study aims to evaluate the effect of ozonation on
Food Sci. Technol. Publicado em: 26/07/2018
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5. Occupational exposure of workers to pesticides: Toxicogenetics and susceptibility gene polymorphisms
Farm workers are often exposed to pesticides, which are products belonging to a specific chemical group that affects the health of agricultural workers and is mostly recognized as genotoxic and carcinogenic. The exposure of workers from Piauí, Brazil, to these hazardous chemicals was assessed and cytogenetic alterations were evaluated using the buccal micro
Genet. Mol. Biol.. Publicado em: 2015-09
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6. Inhibition of Saccharomyces cerevisiae Pdr5p by a natural compound extracted from Brazilian Red Propolis
Multidrug resistance of cancer cells and pathogenic microorganisms leading to the treatment failure of some forms of cancer or life-threatening bacterial or fungal infections is often caused by the overexpression of multidrug efflux pumps belonging to the ATP-binding cassette transporters superfamily. The multidrug resistance of fungal cells often involves t
Revista Brasileira de Farmacognosia. Publicado em: 12/08/2011
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7. Effect of the microfiltration process on antioxidant activity and lipid peroxidation protection capacity of blackberry juice
Phytochemicals are highly concentrated in berries, especially polyphenols as anthocyanins and ellagitannins. These compounds have been associated with antioxidant capacity, lipid peroxidation protection, anti-inflammatory activity, anti-carcinogenic activity, obesity prevention and others. Blackberries are commonly grown and consumed as juice in Latin-Americ
Revista Brasileira de Farmacognosia. Publicado em: 05/08/2011
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8. Obtenção e caracterização de revestimentos híbridos à base de precursores alcoóxidos sobre o aço galvanizado
Galvanized steel presents a protective layer of Zn and Zn-Fe, obtained by hot dipping, which promotes the steel protection. However, the presence of this layer decreases the adhesion of paint systems and reduces the corrosion resistance. A very efficient method used to protect against the substrate corrosion is chromate layers, which provide excellent antico
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2011
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9. Potencial Antitumoral de extratos da própolis brasileira e de folhas de graviola (Annona muricata): efeito citotóxico sobre células hepatocarcinogênicas HepG2 / Anti-tumorous potencial of Brazilian propolis and soursop leaf extract (Annona muricata): cytotoxic effect on hepatic carcinogenic HepG2 cells
The hepatocellular carcinoma is the most common adult primary liver câncer and it has already become the fifth most common neoplasia in the world and the third in number of deaths related to cancer. It is estimated that 2/3 of all human neoplasias could be prevented by a change in lifestyle, including a diet. The propolis, elaborated from various plant part
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 19/02/2010
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10. Genotoxicidade e composição do material particulado emitido pela queima de Biomassa: um estudo de caso em Tangará da Serra, Região da Amazônia Brasileira
Tangara da Serra is located on southwestern Mato Grosso and is found to be on the route of pollutants dispersion originated in the Legal Amazons deforestation area. This region has also a wide area of sugarcane culture, setting this site quite exposed to atmospheric pollutants. The objective of this work was to evaluate the genotoxicity of three different co
Publicado em: 2010
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11. Estudo da remoÃÃo e degradaÃÃo dos corantes Remazol Black B e Remazol Red RB 133%, e do fÃrmaco Ganciclovir, com aplicaÃÃo de Processos Oxidativos AvanÃados
The contamination of rivers, seas, lakes and oceans is one of the major problems of modern society, caused in large part by industrial activities. Textile processing, particularly generate great amounts of effluent characterized by a high organic load, strong color and toxic chemical compounds, which, depending on the dye, can also contain mutagenic, carcino
Publicado em: 2009
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12. Intrinsic denervation of the colon is associated with a decrease of some colonic preneoplastic markers in rats treated with a chemical carcinogen
Denervation of the colon is protective against the colon cancer; however, the mechanisms involved are unknown. We tested the hypothesis that the denervated colonic mucosa could be less responsive to the action of the chemical carcinogen dimethylhydrazine (DMH). Three groups of 32 male Wistar rats were treated as follows: group 1 (G1) had the colon denervated
Brazilian Journal of Medical and Biological Research. Publicado em: 14/02/2008