Citotoxicity
Mostrando 1-12 de 68 artigos, teses e dissertações.
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1. Synthesis, characterization and cytotoxicity of Chitosan/Polyvinyl Alcohol/Bioactive Glass hybrid scaffolds obtained by lyophilization
ABSTRACT One of the important research topics in tissue engineering is the development of optimum three-dimensional scaffolds for regeneration and growth of bone tissue. The scaffold developed should promote an initial biomechanical support, provide the formation, deposition and organization of the new organic matrix generated, and degrade proportionally to
Matéria (Rio J.). Publicado em: 2016-12
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2. Ozone therapy as an adjuvant for endondontic protocols: microbiological – ex vivo study and citotoxicity analyses
ABSTRACT Objectives This study evaluated the antimicrobial efficacy of ozone therapy in teeth contaminated with Pseudomonas aeruginosa, Enterococcus faecalis, and Staphylococcus aureus using a mono-species biofilm model. Parallel to this, the study aimed to evaluate the cytotoxicity of ozone for human gingival fibroblasts. Material and Methods: One hundred
J. Appl. Oral Sci.. Publicado em: 2016-12
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3. Citotoxicity of Fipronil on Hepatocytes Isolated from Rat and Effects of Its Biotransformation
ABSTRACT The aim of this study was to characterize the mechanism of toxicity of fipronil on hepatocytes isolated from the rat and the effect of its biotransformation on the toxicological potential. The toxicity of fipronil was assessed by monitoring the oxygen consumption and mitochondrial membrane potential, intracellular ATP concentration, Ca2+ homeostasis
Braz. arch. biol. technol.. Publicado em: 2015-12
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4. Citotoxicity of nonlatex elastomeric ligatures of orthodontic use
The aim of this study is to evaluate cytotoxicity between polyurethane and non-latex orthodontic elastomeric ligatures. Seven elastomeric ligatures of black-coloured from different manufactures (3 non-latex, 3 polyurethane and 1 latex) were divided into 7 groups of 10 elastics each: Group UK (nonlatex, 3M Unitek), Group TP (nonlatex, TP Orthodontics), Group
Matéria (Rio J.). Publicado em: 2015-03
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5. Virulence profiles of Shiga toxin-producing Escherichia coli and other potentially diarrheagenic E.coli of bovine origin, in Mendoza, Argentina
This study described a group of strains obtained from a slaughter house in Mendoza, in terms of their pathogenic factors, serotype, antibiotype and molecular profile. Ninety one rectal swabs and one hundred eight plating samples taken from carcasses of healthy cattle intended for meat consumption were analyzed. Both the swab and the plate samples were proces
Braz. J. Microbiol.. Publicado em: 04/02/2014
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6. Evaluation of inorganic and organic bone components after application of an apatite-coated Al2O3 implants as scaffolds for bone repair
The aim of this work was to study the influence of uncoated and apatite-coated Al2O3 implants on bone regeneration after 30 days of surgery in New Zealand white rabbits. Twelve samples of Al2O3 implants were prepared and half of them (n = 6) were apatite-coated by the modified biomimetic method. Three experimental groups were tested as Group C - control, sur
Braz. arch. biol. technol.. Publicado em: 31/01/2014
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7. Investigating the correlation between some of the properties of plasma nitrided AISI 316L stainless steel
When AISI 316L stainless steels are submitted to the nitriding process at temperatures lower than 450 °C, a high nitrogen content expanded austenite phase is formed, which shows higher hardness and higher pitting corrosion resistance compared to the untreated material. As a result, this material becomes adequate for biomedical application. The conditions of
Mat. Res.. Publicado em: 28/05/2013
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8. Planejamento de inibidores das enzimas diidroorotato desidrogenase de Trypanosoma cruzi e Leishmania major / Design of inhibitors for dihydroorotate dehydrogenase from Trypanosoma cruzi and Leishmania major
Dihydroorotate dehydrogenase (DHODH) catalyses the conversion of dihydroorote to orotate, the fourth step and only redox reaction in the de novo pyrimidine biosynthetic pathway. DHODH has been exploited as a validated target for therapy against proliferative and parasitic diseases, and in particular, has been considered to be an attractive target for drug de
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 25/04/2012
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9. Danos oxidativos promovidos por espécies de Mn(III) sobre biomoléculas e células em situação de estresse / Oxidative damage induced by Mn(III) species over biomolecules and stressed cells
Manganese is an essential trace element, however there is considerable concern regarding its neurological effects when in excess, giving rise to a condition termed manganism which is characterized by Parkinson disease-like symptoms. Most evaluations of manganese toxicity use poorly defined Mn(II) species, although Mn(III) is known to accumulate preferentiall
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 08/03/2012
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10. Avaliação do potencial genotóxico e citotóxico associado a queima artesanal da castanha de caju no Município de João Câmara
The Brazil is the third largest producer of cashew nuts in the world. Despite the social and economic importance of the cashew nut, its production is still carried out artisanally. One of the main problems encountered in the cashew production chain are the conditions under which the roasting of the nut occurs to obtain the kernel from the shell. In the prese
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 14/10/2011
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11. Estudo das alteraÃÃes hematolÃgicas, bioquÃmicas e genotÃxicas induzidas por agrotÃxicos em agricultores do estado do Piauà / STUDY OF POSSIBLE GENETIC CHANGES INDUCED BY PESTICIDES IN FARMERS IN THE STATE OF PIAUÃ
Exposure to pesticides represents a potential risk to human health. In addition to poisoning, these compounds may interact with DNA, causing degenerative diseases, including cancer. The risk assessment for pesticides was conducted in the municipalities of Picos, Piripiri, Barras and Josà de Freitas with farm workers (exposed group) and 55 administrative off
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 26/09/2011
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12. Caracterização química e avaliação da atividade antioxidante e citotóxica do extrato da soja (Glycine max) biotransformada pelo fungo Aspergillus awamori / Chemical characterization and evaluation of the antioxidant and cytotoxic activity of the soybean (Glycine max) extract biotransformed by the Aspergillus awamori
A soja (Glycine max) contém uma variedade de compostos com comprovada atividade biológica, tais como as isoflavonas, que estão presentes em diferentes formas, glicosiladas e agliconas. Além disso, a soja contém uma grande quantidade de proteínas, que são consideradas fontes de peptídeos bioativos. As isoflavonas agliconas, daidzeína e genisteína, p
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 09/08/2011