Efflux System
Mostrando 13-24 de 436 artigos, teses e dissertações.
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13. Avaliação dos efeitos induzidos pelo 2-Nitrato-1, 3-Dibutoxipropano (NDBP) sobre o sistema cardiovascular de ratos normotensos - abordagens en vivo e in vitro
Organic nitrates are nitric oxide (NO) donors used in the treatment of cardiovascular diseases mimicking the role of endogenous NO. This study evaluated organic nitrates newly synthesized from glycerin, which cardiovascular actions had not yet been investigated. Therefore, the cardiovascular effects produced by organic nitrates derived from glycerin: 2-nitra
Publicado em: 2010
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14. Indicadores microbiológicos e bioquímicos da qualidade do solo em transição para cultivo orgânico de feijoeiro comum (Phaseolus vulgaris L.) / Microbiological and biochemical indicators of the quality of ground transitioning to organic cultivation of common bean (Phaseolus vulgaris L.)
The soil quality indicators analyses during and after the transition period of conventional to organic production system are very important to evaluated the sustainability of agricultural systems. Soil microbiological and biochemical indicators shall quickly indicate changes occurred on both, soil management and production systems. The objective of this work
Publicado em: 2009
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15. Fluoroscopy guided instillation therapy in chyluria using combination of povidone iodine with contrast agent: is a single instillation sufficient?
PURPOSE: To evaluate the safety and efficacy of a single instillation in a combination of povidone iodine with contrast agent under fluoroscopy guidance for the treatment of chyluria. MATERIALS AND METHODS: From December 1999 to July 2006 a total of 40 patients with chyluria were treated by renal pelvic instillation therapy (RPIS). The sclerosing solution wa
International braz j urol. Publicado em: 2008-06
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16. EMISSÕES DE CO2 DO SOLO SOB PREPARO CONVENCIONAL E PLANTIO DIRETO EM LATOSSOLO VERMELHO DO RIO GRANDE DO SUL / SOIL CO2 EMISSIONS IN CONVENTIONAL AND NO-TILL SYSTEMS IN A RHODIC HAPLUDOX IN RIO GRANDE DO SUL
Climatic change is associated with the increase of greenhouse gases (GHG) concentration, including carbon dioxide (CO2). Among the most important strategies to decrease global warming are decrease emissions and increase biological capture of CO2 through carbon sequestration in the ecosystems. Therefore, soils are fundamental to this strategy because dependin
Publicado em: 2008
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17. Association study between a genetic polymorphism in aldosterone sinthase and resistance to anti-hypertension treatment / Estudo de associação entre polimorfismo no gene da aldosterona sintase e resistencia ao tratamento anti-hipertensivo
Introduction: Resistant hypertension is characterized by elevated blood pressure concurrent with the use of 3 different anti-hypertensive drugs, being one of them a diuretic. There are genetic factors that interfere in the arterial pressure control system and may have a significant role in resistant hypertension. Renin-Angiotensin-Aldosterone System plays a
Publicado em: 2008
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18. Caracterização das mutações envolvidas na resistência de isolados de Mycobacterium tuberculosis à estreptomicina e sua relação com o sistema de efluxo / Characterization of mutations involved in resistance to streptomycin in clinical isolates of Mycobacterium tuberculosis and its relation with the efflux system
O Mycobacterium tuberculosis é intrinsecamente resistente a diversos antimicrobianos. Esta resistência é devida, principalmente, ao envelope hidrofóbico da célula bacteriana que atua como uma barreira efetiva para diversos compostos. Outros determinantes da sua resistência intrínseca incluem enzimas hidrolíticas e bombas de efluxo de drogas. A resist
Publicado em: 2007
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19. ASPECTOS GERAIS RELATIVOS AO PAPEL PROBIÓTICO DE Saccharomyces boulardii: CARACTERIZAÇÃO DE BIOMOLÉCULAS POSSIVELMENTE ENVOLVIDAS NO EFEITO PROTETOR E RESPOSTA A ESTRESSES
Saccharomyces boulardii have been used to prevent or to treat antibiotic-induced gastrointestinal disorders and acute enteritis. To exert a protective effect the probiotics have mechanisms to protect their intern system in response to changes in the environment. In this report we describe the behavior of S. boulardii and different S. cerevisiae strains submi
Publicado em: 2005
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20. Multidrug efflux systems in Gram-negative bacteria
Multidrug efflux mechanisms in bacteria contribute significantly to intrinsic and acquired resistance to antimicrobial agents. Genome analysis have confirmed the broad distribution of these systems in Gram-negative as well as in Gram-positive bacteria. Among resistance mechanisms, the multidrug efflux system or pump deserves special attention, since a cell t
Brazilian Journal of Microbiology. Publicado em: 2004-06
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21. Genome features of Leptospira interrogans serovar Copenhageni
We report novel features of the genome sequence of Leptospira interrogans serovar Copenhageni, a highly invasive spirochete. Leptospira species colonize a significant proportion of rodent populations worldwide and produce life-threatening infections in mammals. Genomic sequence analysis reveals the presence of a competent transport system with 13 families of
Brazilian Journal of Medical and Biological Research. Publicado em: 2004-04
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22. Effects of estrogen on the vascular system
The cardiovascular protective actions of estrogen are partially mediated by a direct effect on the vessel wall. Estrogen is active both on vascular smooth muscle and endothelial cells where functionally competent estrogen receptors have been identified. Estrogen administration promotes vasodilation in humans and in experimental animals, in part by stimulatin
Brazilian Journal of Medical and Biological Research. Publicado em: 2003-09
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23. Caracterização de uma proteina de 35 KDa isolada de mitocondrias de batata com possivel função termogenica
Early studles from thls laboratory have lndicated that the low degree of coupling between respiration and oxidative phosphorylation in potato mitochondria seems to be related to a 35 KDa protein, present in the inner membrane of those mitochondria, with the ability to translocate H with a: mechanism sensitive to purine nucleotides. In this work, we obtained
Publicado em: 1993
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24. Evidence for Substrate Induction of a Nitrate Efflux System in Barley Roots.
Induction of an NO3- efflux system in intact barley (Hordeum vulgare L.) roots was demonstrated. Since the measurement of NO3- efflux is dependent on its accumulation, experiments were devised to facilitate accumulation under noninducing conditions. This was accomplished by incubating seedlings in 10 mM NO3- in the presence of RNA and protein synthesis inhib