Membrane Probes
Mostrando 1-12 de 421 artigos, teses e dissertações.
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1. Clinical perspectives of PSMA PET/MRI for prostate cancer
Prostate cancer imaging has become an important diagnostic modality for tumor evaluation. Prostate-specific membrane antigen (PSMA) positron emission tomography (PET) has been extensively studied, and the results are robust and promising. The advent of the PET/magnetic resonance imaging (MRI) has added morphofunctional information from the standard of refere
Clinics. Publicado em: 21/09/2018
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2. Ergosterol isolated from the basidiomycete Pleurotus salmoneostramineus affects Trypanosoma cruzi plasma membrane and mitochondria
Abstract Background Major drawbacks of the available treatment against Chagas disease (American trypanosomiasis) include its toxicity and therapeutic inefficiency in the chronic phase of the infection, which makes it a concern among neglected diseases. Therefore, the discovery of alternative drugs for treating chronic Chagas disease requires immediate acti
J. Venom. Anim. Toxins incl. Trop. Dis. Publicado em: 06/07/2017
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3. Differential detection of transposable elements between Saccharum species
Cultivars of sugarcane (Saccharum) are hybrids between species S. officinarum (x = 10, 2n = 8x = 80) and S. spontaneum (x=8,2n=5-16x =40-128). These accessions have 100 to 130 chromosomes, 80-85% of which are derived from S. officinarum, 10-15% from S. spontaneum, and 5-10% are possible recombinants between the two genomes. The aim of this study was to analy
Genet. Mol. Biol.. Publicado em: 16/08/2013
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4. Clinical and mycological analysis of dog's oral cavity
The oral microbiota of humans and animals is made up of a wide variety of yeasts and bacteria, but microbiota of dogs is not totally described. Although such identification is an important step to establish the etiopathogenesis and adequate therapy for the periodontal disease The aim of this study was to evaluate and correlate oral alterations with the prese
Braz. J. Microbiol.. Publicado em: 09/04/2013
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5. Electron paramagnetic resonance study of lipid and protein membrane components of erythrocytes oxidized with hydrogen peroxide
Electron paramagnetic resonance (EPR) spectroscopy of spin labels was used to monitor membrane dynamic changes in erythrocytes subjected to oxidative stress with hydrogen peroxide (H2O2). The lipid spin label, 5-doxyl stearic acid, responded to dramatic reductions in membrane fluidity, which was correlated with increases in the protein content of the membran
Brazilian Journal of Medical and Biological Research. Publicado em: 2012-06
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6. Efeitos de terpenos nas membranas de estrato córneo estudados por ressonância paramagnética eletrônica / Effects of terpenes on the stratum corneum membranes studied by electron paramagnetic resonance
The interaction of the skin penetration enhancers DL-menthol, -terpineol, 1,8-cineole and (+)-limonene with membranes of the uppermost skin layer, the stratum corneum (SC) and with multilamellar vesicles from 1,2-dipalmitoyl-sn-glycero-3-phosphaticylcholine (DPPC)is investigated by electron paramagnetic resonance (EPR) spectroscopy using spin-labeled
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/02/2008
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7. Técnicas de fluorescência no monitoramento de membranas modelo / Fluorescence techniques to monitor model membranes
Apresentamos os resultados de estudos sobre a utilização de técnicas baseadas no fenômeno de fluorescência para a investigação de processos relacionados a membranas modelo. Nessa investigação, estão envolvidas medidas de propriedades espectrais de absorção e emissão de luz por cromóforos adequados, determinação xperimental de perfis de decaim
Publicado em: 2008
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8. Utilization of fluorescent probe association for simultaneous assessment of plasmatic, acrosomal, and mitochondrial membranes of rooster spermatozoa
This experiment was designed with the objective of developing a simple, practical, and high repeatability technique for the simultaneous evaluation of the integrity of the plasmatic and acrosomal membranes, as well as funcional mitochondria of domestic fowl spermatozoa using an association of fluorescent probes. Four ejaculates (motility > 80% and abnormal m
Revista Brasileira de Ciência Avícola. Publicado em: 2007-09
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9. Bloqueio da fosforilação oxidativa no cultivo de embriões bovinos / Oxidative phosphorylation blockage of bovine culture embryos
Although in vitro embryo production has been improved in the last 2 decades, about 60% of the oocytes do not reach the blastocyst stage and embryo quality is very variable when compared with in vivo produced embryo. This developmental block can be affected by inorganic ions, buffers, aminoacids and gaseous atmosphere composition. The knowledge that there inf
Publicado em: 2006
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10. Effects of bovine semen cryopreservation on sperm plasmatic, acrosomal, and mitochondrial membranes and chromatin structure using fluorescent probes / Efeitos da criopreservação do sêmen bovino sobre as membranas plasmática, acrossomal e mitocondrial e estrutura da cromatina dos espermatozóides utilizando sondas fluorescentes
The process of cryopreservation causes damages in the sperm cellular function which may lead to a reduction in fertility. New techniques to evaluate sperm viability may improve the process of semen evaluation. The present work was divided in two experiments. Experiment 1 aimed the development and validation of practical techniques with high repetibility for
Publicado em: 2005
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11. Perfil da expressão genica em raizes de milho expostas ao aluminio utilizando macroarrays
Aluminum (Al) is toxic to most plants at micromolar concentrations and decreases crop productivity in large areas in the world. The first and most dramatic symptom of Al toxicity is the inhibition of root growth, which leads to a reduced root system. Consequently, sensitive plants explore a smaller soil surface. The objectives of this work were to establish
Publicado em: 2002
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12. Expressão de ligantes da lectina KM+ durante a ontogenese cerebelar do rato
Lectins are non-immune, non-enzymatic proteins that bind carbohydrates. They can aglutinate cells and precipitate glyconconjugates. Since they are abundant in plants and can be easily purified, they are commonly used as probes to detect, isolate and characterize soluble or membrane-bound glycoproteins. They have been employed to detect glycoproteins involved
Publicado em: 2001