Enzymes Antioxidants
Mostrando 13-24 de 96 artigos, teses e dissertações.
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13. 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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14. Efeito do Ãcido abscÃsico nas bombas de prÃtons vacuolares e enzimas antioxidantes em Vigna unguiculata (L.) Walp / Effect of abscisic acid in vacuolar proton pumps and antioxidant enzymes in Vigna unguiculata (L.) Walp
O Ãcido abscÃsico (ABA) à um fitohormÃnio que desempenha papÃis crÃticos na regulaÃÃo das respostas das plantas ao crescimento e desenvolvimento. O vacÃolo de plantas superiores à uma organela que ocupa a maior parte da cÃlula. A condiÃÃo de acidez à mantida por duas bombas de prÃtons distintas, V-ATPase e V-PPase. Sabe-se que estas bombas de
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 16/02/2011
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15. Estudo das características físico-químicas e funcionalidade de bagaços de frutas tropicais desidratados em leito de jorro / Physical-chemical characterization and functionality of dried tropical fruit wastes obtained by using the spouted bed drier
Fruits are rich sources of bioactive compounds, including phenolic compounds. Tropical fruit cultivation is an important productive segment in Brazilian Northeast. Its industrialization generates solid wastes as co-products, with potential environmental impact. Considering the recognized bioactive content of fruit and its derivatives, this research has the o
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 15/02/2011
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16. Changes in growth, pigment content and antioxidants in the root and leaf tissues of wheat plants under the influence of exogenous salicylic acid
The effect of various concentrations of salicylic acid (SA) on the growth, pigment content and the activity of antioxidants was investigated in the laboratory grown wheat plants. The root and shoot growth was affected at higher concentration of SA in early days of growth. The activities of catalase (CAT), ascorbate peroxidase (APX) and guaicol-specific perox
Brazilian Journal of Plant Physiology. Publicado em: 2011
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17. Antioxidant and other biochemical defense responses of Macrotyloma uniflorum (Lam.) Verdc. (Horse gram) induced by high temperature and salt stress
High temperature and salinity are the major ecological factors challenging crop productivity in the arid and semiarid regions of the world. Effects of high temperature (43-45°C) and salt stress (0.6 M) on Macrotyloma uniflorum (Lam.) Verdc. (Horse gram), were evaluated in terms of antioxidants and antioxidant enzymes. Both treatments caused typical stress r
Brazilian Journal of Plant Physiology. Publicado em: 2011
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18. Avaliação das propriedades antigenotóxicas e antioxidantes do flavonóide quercetina e dos carotenóides bixina e norbixina contra os danos no material genético e distúrbios do estado redox causados pelo cloreto de mercúrio e metilmercúrio, in vitro e in vivo / Evaluation of antigenotoxic and antioxidant properties of the flavonoid quercetin and of the carotenoid bixin and norbixin against DNA-damage and alterations of redox status induced by mercury chloride and methylmercury, in vitro and in vivo
Mercury (Hg) is one of the most hazardous metals in the environment and the major process responsible for its toxicity is oxidative damage; its organic form methylmercury (MeHg) presents the highest toxicity. The main way of exposition to Hg is through inhalation by workers occupationally exposed in several industries and/or through consumption of fishes and
Publicado em: 2011
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19. Efeito dos herbicidas ametrina e clomazone no sitema antioxidante bacteriano / Effect of herbicides ametrina and clomazone on bacterial antioxidant system
Os herbicidas ametrina e clomazone são amplamente utilizados na cultura de cana-deaçúcar, apresentam degradação essencialmente microbiana e são considerados contaminantes de solos e águas. A exposição dos microrganismos a estes xenobióticos pode resultar em dano oxidativo devido ao aumento na produção de espécies reativas de oxigênio (EROs). Es
Publicado em: 2011
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20. Superoxide dismutase, catalase, glutathione peroxidase and gluthatione S-transferases M1 and T1 gene polymorphisms in three Brazilian population groups
Antioxidants such as superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GPX1) reduce the oxidation rates in the organism. Gluthatione S-transferases (GSTs) play a vital role in phase 2 of biotransformation of many substances. Variation in the expression of these enzymes suggests individual differences for the degree of antioxidant protect
Genetics and Molecular Biology. Publicado em: 26/11/2010
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21. Influence of chromium salts on increased lipid peroxidation and differential pattern in antioxidant metabolism in Pistia stratiotes L
In this work, the changing effect of different concentrations (0, 0.01, 0.1, 1, 10mM) of hexavalent and trivalent chromium on different biochemical parameters along with antioxidant enzymes was investigated on water lettuce (Pistia stratiotes L.) in order to know the possible involvement of this metal in oxidative injury, besides the activities of antioxidan
Brazilian Archives of Biology and Technology. Publicado em: 2010-10
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22. AVALIAÇÃO DA ATIVIDADE DE ENZIMAS QUE DEGRADAM NUCLEOTÍDEOS DE ADENINA E ÉSTERES DE COLINA E ESTUDO DO PERFIL OXIDATIVO EM PACIENTES COM CARDIOPATIA ISQUÊMICA / EVALUATION OF THE ENZYME ACTIVITY THAT DEGRADES ADENINE NUCLEOTIDES AND ESTERS OF CHOLINE AND STUDY OF OXIDATIVE PROFILE IN PATIENTS WITH ISCHEMIC HEART
Ischemic heart disease (IHD) is a major cardiovascular disease. The term ischemiarefers to a lack of oxygen due to inadequate perfusion, which results from an imbalance between oxygen supply and demand. The most common cause of myocardial ischemia is atherosclerotic obstructive coronary artery disease caused by rupture or ulceration of atheromatous plaque an
Publicado em: 2010
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23. BIOCHEMICAL RESPONSE IN CARP (Cyprinus carpio) EXPOSED TO FUNGICIDE TEBUCONAZOLE (FOLICUR 200 EC) / RESPOSTAS BIOQUÍMICAS EM CARPAS (Cyprinus carpio) EXPOSTAS AO FUNGICIDA TEBUCONAZOLE (FOLICUR 200 EC)
The intensive use and/or inadequate management of pesticides have led to contamination of the aquatic ecosystem, reaching the biota living there, including the fish. Pesticides can affect toxicological parameters these animals, harming their survival. In this way, the aim this study has to evaluate biochemistry changes in carps (Cyprinus carpio) after exposu
Publicado em: 2010
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24. Fenil éster do ácido caféico melhora a resposta ao estresse oxidativo em modelo animal de obesidade induzida por dieta hiperlipídica / Caffeic acid of phenethyl ester improves the oxidative stress response in animal model of obesity induced by high fat diet
Obesity is a disease that is increasing in a drastically way around the world and is implicated in many pathological conditions, such as insulin resistance, type 2 diabetes, dyslipidemia, fatty liver disease, hypertension and cardiovascular risk. Evidence has shown that obesity is a chronic oxidative stress state that is associated with metabolic and physiol
Publicado em: 2010