Tetrazolium Test
Mostrando 13-24 de 130 artigos, teses e dissertações.
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13. Bayesian sequential procedure to estimate the viability of seeds Coffea arabica L. in tetrazolium test
ABSTRACT: Tetrazolium tests use conventional sampling techniques in which a sample has a fixed size. These tests may be improved by sequential sampling, which does not work with fixed-size samples. When data obtained from an experiment are analyzed sequentially the analysis can be terminated when a particular decision has been made, and thus, there is no nee
Sci. agric. (Piracicaba, Braz.). Publicado em: 2019-05
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14. Harvesting methods on physical and physiological quality of Panicum maximum seeds
RESUMO A qualidade de sementes de espécies forrageiras pode ser influenciada pelos diferentes métodos de colheita utilizados. Nesta pesquisa objetivou-se avaliar a qualidade física e fisiológica de sementes de Panicum maximum cultivares Massai e Mombaça, obtidas pelos métodos de colheita no cacho (corte das panículas) e varredura do solo, de diferente
Rev. bras. eng. agríc. ambient.. Publicado em: 2019-04
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15. Adjustments in the tetrazolium test methodology for assessing the physiological quality of chickpea seeds
Resumo: Testes rápidos são ferramentas imprescindíveis na avaliação da qualidade de sementes. O objetivo deste estudo foi adequar a metodologia do teste de tetrazólio para avaliar a qualidade fisiológica de sementes de grão-de-bico, visando a identificação dos melhores tempos e temperaturas de pré-condicionamento, e concentrações das soluções
J. Seed Sci.. Publicado em: 2019-01
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16. Assessment of toxicity and oxidative DNA damage of sodium hypochlorite, chitosan and propolis on fibroblast cells
Abstract The objective of this study was to evaluate and compare the cytotoxicity and genotoxicity on human fibroblast cell lines of sodium hypochlorite (NaOCl), chitosan and propolis as root canal irrigating solutions. Human fibroblast cells were exposed to chitosan, propolis and NaOCl for 4 and 24 h. Cell viability was assessed by 2,3-bis-(2-methoxy-4-nitr
Braz. oral res.. Publicado em: 29/11/2018
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17. Cytotoxic activity of abietane diterpenoids from roots of Salvia sahendica by HPLC-based activity profiling
ABSTRACT Screening of medicinal plants from Iranian flora against human cancer cell-lines have shown that an hexane extract from roots of Salvia sahendica Boiss. & Buhse, Lamiaceae, is active against human cervical cancer (HeLa) and colorectal adenocarcinoma (Caco-2) cell-lines at the test concentration of 100 µg/ml (100% inhibition). Cytotoxicity of the ex
Rev. bras. farmacogn.. Publicado em: 2018-01
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18. Cytotoxicity and cytokine expression induced by silorane and methacrylate-based composite resins
ABSTRACT The successful use of composite resins in Dentistry depends on physicochemical properties, but also on the biological compatibility of resins, because of the close association between pulp and dentin. Objective The aim of this study was to evaluate cytotoxicity and cytokine production induced by light-cured or non-light-cured methacrylate-based an
J. Appl. Oral Sci.. Publicado em: 2016-08
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19. Cytotoxicity and genotoxicity of calcium silicate-based cements on an osteoblast lineage
Abstract Several calcium silicate-based biomaterials have been developed in recent years, in addition to Mineral Trioxide Aggregate (MTA). The aim of this study was to evaluate the cytotoxicity, genotoxicity and apoptosis/necrosis in human osteoblast cells (SAOS-2) of pure calcium silicate-based cements (CSC) and modified formulations: modified calcium silic
Braz. oral res.. Publicado em: 20/05/2016
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20. Antimutagenic, antiproliferative, and antioxidant effect of extracts obtained from octopus (Paraoctopus limaculatus)
Abstract The search for chemopreventive/chemoprotective compounds in marine organism has been extensively reported; however, the presence of these compounds in octopus has been incipiently explored. In this research, the antimutagenic, antiproliferative, and antioxidant potential of three crude extracts (methanolic, acetonic, and hexanic) from Paroctopus lim
Food Sci. Technol. Publicado em: 2015-12
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21. Compounds used to produce cloned animals are genotoxic and mutagenic in mammalian assays in vitro and in vivo
The compounds 6-dimethylaminopurine and cycloheximide promote the successful production of cloned mammals and have been used in the development of embryos produced by somatic cell nuclear transfer. This study investigated the effects of 6-dimethylaminopurine and cycloheximide in vitro, using the thiazolyl blue tetrazolium bromide colorimetric assay to assess
Braz J Med Biol Res. Publicado em: 28/03/2014
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22. Effect of penehyclidine hydrochloride on β-arrestin-1 expression in lipopolysaccharide-induced human pulmonary microvascular endothelial cells
β-arrestins are expressed proteins that were first described, and are well-known, as negative regulators of G protein-coupled receptor signaling. Penehyclidine hydrochloride (PHC) is a new anti-cholinergic drug that can inhibit biomembrane lipid peroxidation, and decrease cytokines and oxyradicals. However, to date, no reports on the effects of PHC on β-ar
Braz J Med Biol Res. Publicado em: 02/12/2013
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23. Human tooth germ stem cell response to calcium-silicate based endodontic cements
OBJECTIVE: The aim of this study was to compare the cytotoxic effects of endodontic cements on human tooth germ stem cells (hTGSCs). MTA Fillapex, a mineral trioxide aggregate (MTA)-based, salicylate resin containing root canal sealer, was compared with iRoot SP, a bioceramic sealer, and AH Plus Jet, an epoxy resin-based root canal sealer. MATERIAL AND M
J. Appl. Oral Sci.. Publicado em: 2013-07
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24. Qualidade de sementes de soja convencional e transgÃnica apÃs colheita e durante armazenamento em condiÃÃo ambiente e em resfriamento / Seed quality of conventional and transgenic soybean after harvest and storage in warehouse and cooling conditions
In a scenario where there is increasing production of soybeans, the quality of the storaging process is a factor of increasing concern, which requires the incorporation of technologies and production systems research in seed companies, adopting measures to ensure the viability of the seed during storage. This study aimed to evaluate the quality of seeds of f
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 04/04/2012