Redox State
Mostrando 13-24 de 378 artigos, teses e dissertações.
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13. Mineralogy and Concentration of Potentially Toxic Elements in Soils of the São Francisco Sedimentary Basin
ABSTRACT Lithological and geomorphological variations determine formation of soils with different mineralogical constitutions and can influence the distribution of potentially toxic elements (PTE). The aim of this study was to determine the contents of PTE and mineralogical assemblages along soil profiles of different classes and parent materials and to inve
Rev. Bras. Ciênc. Solo. Publicado em: 24/05/2018
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14. Effect of aerobic exercise training on cGMP levels and blood pressure in treated hypertensive postmenopausal women
Abstract The second messenger cGMP has been largely studied as a therapeutic target in a variety of disorders such as erectile dysfunction, arterial hypertension and heart failure. Evidence has shown thatcGMP activators are less efficient in estrogen-deficiency animals, but no studies exist involving non-pharmacological approacheson NO/cGMP signaling pathway
Motriz: rev. educ. fis.. Publicado em: 2017-03
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15. Prevalence of βS-globin gene haplotypes, α-thalassemia (3.7 kb deletion) and redox status in patients with sickle cell anemia in the state of Paraná, Brazil
The aim of this study was to determine the frequency of beta S-globin gene (βS globin) haplotypes and alpha thalassemia with 3.7 kb deletion (−α3.7kb thalassemia) in the northwest region of Paraná state, and to investigate the oxidative and clinical-hematological profile of βS globin carriers in this population. Of the 77 samples analyzed, 17 were Hb S
Genet. Mol. Biol.. Publicado em: 21/08/2015
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16. Therapeutic concentration of morphine reduces oxidative stress in glioma cell line
Morphine is a potent analgesic opioid used extensively for pain treatment. During the last decade, global consumption grew more than 4-fold. However, molecular mechanisms elicited by morphine are not totally understood. Thus, a growing literature indicates that there are additional actions to the analgesic effect. Previous studies about morphine and oxidativ
Braz J Med Biol Res. Publicado em: 11/04/2014
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17. Medição e interpretação de valores do potencial redox (E H) em matrizes ambientais
Direct measurements of Redox Potential (ORP) have been used to infer the degree of electrons availability in waters, wastewaters, sediments and soils. Although the interpretation of the results obtained in direct measurements is not trivial, this parameter is part of a list of compulsory determinations required by many Environmental State Agencies as well as
Quím. Nova. Publicado em: 2014
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18. Flavonoid electrochemistry: a review on the electroanalytical applications
Flavonoids are polyphenolic compounds widespread in vegetal kingdom. They present a C-15 skeleton, which is divided into three units A, B and C. Unit C is an oxygen containing heterocyclic, whose oxidation state and saturation level define major subclasses. Units A and B are aromatic rings, in which four major types of substituents, i. e. hydroxyl, methoxyl,
Rev. bras. farmacogn.. Publicado em: 10/05/2013
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19. Frações da matéria orgânica e propriedades redox de substâncias húmicas em sedimentos de oceanos profundos
Previous studies have verified that free radicals such as quinone moieties in organic matter participate in the redox reactions in natural systems. These functional groups were positively correlated with the increase in aromaticity and hydrophobicity of the humic substances. As an alternative to relatively complex and expensive spectroscopic methods, the red
Quím. Nova. Publicado em: 2013
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20. Influência da restrição calórica no metabolismo bioenergético e estado redox de Saccharomyces cerevisiaee Kluyveromyces lactis / Influence of caloric restriction on energy metabolism and redox state of Saccharomyces cerevisiaee Kluyveromyces lactis
Aging involves a progressive decline in metabolic efficiency of biological systems over time. Although it cannot be avoided, aging phenotypes are delayed in organisms undergoing caloric restriction, a dietary regimen consisting of a reduced availability of calories. The yeast Saccharomyces cerevisiae has proved to be an important model organism for studying
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 18/01/2012
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21. Efeito do tratamento com estradiol sobre o controle da pressão arterial e o estresse oxidativo
In this thesis was studied the sympathovagal and the nitric oxide (NO)/reactive oxygen species (ROS) balances in ovariectomized female rats. It was verified the effectiveness of 17b-estradiol in the blood pressure (BP) control and cardiovascular oxidative stress using low doses of estrogen. Then, we developed three protocols to evaluate morphometric, hemodyn
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
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22. Identificação de actinomicetos isolados de solo impactado com resíduos petroquímicos e seleção de potenciais degradadores de misturas de diesel e biodiesel
Actinomycetes are Gram positive bacteria, predominantly filamentous, mainly found in soil. Few studies assess their ability for fuel degradation, although some authors state that they are good candidates for hydrocarbon bioremediation application. The main objectives of this study were to identify actinomycetes obtained from petroleum hydrocarbon contaminate
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
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23. Influência do sistema renina angiotensina na modulação do estado redox, no balanço autonômico e na hipertrofia cardíaca induzida pelo hipertireoidismo experimental
Hyperthyroidism is an epidemiologic relevant pathology, which substantially affects the cardiovascular system. The hyperthyroid state may affect basal metabolism, O2 cell consumption, renin-angiotensin system, and increase reactive oxygen species production. Those alterations produce morphological, biochemical, functional and molecular consequences in cardia
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 2012
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24. Efeito do consumo de hidrolisado do soro de leite no metabolismo energético e no estado redox de ratos sedentários e exercitados / Effect of the intake of hydrolyzate whey proteins on energy metabolism and redox state of sedentary and exercised rats
As proteinas do soro de leite possuem alto valor nutritivo, sendo, portanto, extensamente estudadas em diversas areas do saber. A equipe do Laboratorio de Fontes Proteicas vem estudando a associacao entre o consumo do hidrolisado de proteina do soro de leite e seus efeitos biologicos e nutricionais, em varios niveis de atividade fisica. Seu consumo tem sido
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 06/12/2011