Redox Potential
Mostrando 13-24 de 421 artigos, teses e dissertações.
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13. Evaluation of the Redox State of Wistar Rats Submitted to High-Fat Diet Supplemented With Infusion of Ilex paraguariensis
ABSTRACT This study aimed to evaluate the effect of Ilex paraguariensis infusion on redox state of Wistar rats submitted to high-fat and standard diet. Glutathione determination and lipid peroxidation in the hippocampus tissues and liver was performed, as well as the analysis of gene expression of superoxide dismutase, catalase and glutathione peroxidase by
Braz. arch. biol. technol.. Publicado em: 10/12/2018
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14. Electrode Material Containing Graphite Incorporated to an Amino-Functionalized Polydimethylsiloxane Network for the Detection of Copper
Graphite was incorporated to a polydimethylsiloxane (PDMS) polymer network functionalized with amino groups to obtain an electrode material and used to detect copper ions in aqueous solutions and sugarcane spirit. The polymer network was prepared with PDMS, 3-aminopropyl-trimethoxysilane (APTMS), tetraethyl orthosilicate (TEOS) with addition of graphite to o
J. Braz. Chem. Soc.. Publicado em: 2018-08
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15. Analysis of radioprotection and antimutagenic effects of Ilex paraguariensis infusion and its component rutin
DNA repair pathways, cell cycle checkpoints, and redox protection systems are essential factors for securing genomic stability. The aim of the present study was to analyze the effect of Ilex paraguariensis (Ip) infusion and one of its polyphenolic components rutin on cellular and molecular damage induced by ionizing radiation. Ip is a beverage drank by most
Braz J Med Biol Res. Publicado em: 16/07/2018
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16. Daycent Simulation of Methane Emissions, Grain Yield, and Soil Organic Carbon in a Subtropical Paddy Rice System
ABSTRACT The DayCent ecosystem model, widely tested in upland agroecosystems, was recently updated to simulate waterlogged soils. We evaluated the new version in a paddy rice experiment in Southern Brazil. DayCent was used to simulate rice yield, soil organic carbon (SOC), and soil CH4 fluxes. Model calibration was conducted with a multiple-year dataset from
Rev. Bras. Ciênc. Solo. Publicado em: 02/07/2018
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17. In vitro Evaluation of Oxidative Stress Caused by Fine Particles (PM2.5) Exhausted from Heavy-Duty Vehicles Using Diesel/Biodiesel Blends under Real World Conditions
In this work, the redox activity of fine diesel/biodiesel particulate matter (PM2.5) was studied in order to approach its toxicity from reactive oxygen species, due to adverse effects it may cause to human health. The oxidative potential was measured by the dithiothreitol (DTT) assay in order to study the relative contribution of water-soluble transition met
J. Braz. Chem. Soc.. Publicado em: 2018-06
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18. NUTRIENT REMOVAL FROM SWINE WASTEWATER IN A COMBINED VERTICAL AND HORIZONTAL FLOW CONSTRUCTED WETLAND SYSTEM
ABSTRACT This study aimed to assess the performance of a combined vertical flow (VFCW) and horizontal subsurface-flow (HFCW) constructed wetland systems built on a pilot scale and submitted to different configurations and organic load application rates of pre-treated swine wastewater (SWW) in anaerobic systems on the nitrogen and phosphorus removal. The aver
Eng. Agríc.. Publicado em: 2018-06
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19. Antioxidant activity evaluation of dried herbal extracts: an electroanalytical approach
ABSTRACT The prevention of chronic and degenerative diseases, is a health concern deeply associated with oxidative stress. Such progressive phenomena can be avoided through exogenous antioxidant intake, which set up a reductant cascade, mopping up damaging free radicals. Medicinal herbs are commonly associated with high antioxidant potential, and hence their
Rev. bras. farmacogn.. Publicado em: 2018-06
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20. N-Acetyl-cysteine Increases Chemical Stability of Hydroquinone in Pharmaceutical Formulations: a Theoretical and Experimental Approach
In this study, the chemistry stability of hydroquinone (HQ) was evaluated according to its effects in redox properties and compared to kojic acid (KA). The HQ oxidation was more inhibited by N-acetylcysteine (NAC) than ascorbic acid (AA). These results were elucidated using theoretical methods at the DFT/B3LYP level of theory. All electronic parameters were
J. Braz. Chem. Soc.. Publicado em: 2018-03
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21. Intestinal inflammatory and redox responses to the perioperative administration of teduglutide in rats
Abstract Purpose: To investigate the inflammatory and redox responses to teduglutide on an animal model of laparotomy and intestinal anastomosis. Methods: Wistar rats (n=62) were allocated into four groups: “Ileal Resection and Anastomosis” vs. “Laparotomy”, each one split into “Postoperative Teduglutide Administration” vs. “No Treatment”;
Acta Cir. Bras.. Publicado em: 2017-08
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22. ESTRATÉGIAS E MATERIAIS UTILIZADOS EM FOTOCATÁLISE HETEROGÊNEA PARA GERAÇÃO DE HIDROGÊNIO ATRAVÉS DA FOTÓLISE DA ÁGUA
Among the various technologies for the production of hydrogen fuel, heterogeneous photocatalysis is one of the most promising, especially with the use of semiconductors, notably TiO2. However, the use of TiO2 is limited by hindrances for the photolysis of water, such as wide bandgap, a less negative conduction band reduction potential as compared to that of
Quím. Nova. Publicado em: 2017-06
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23. Nicotinamide mononucleotide adenylyltransferase of Trypanosoma cruzi (TcNMNAT): a cytosol protein target for serine kinases
Nicotinamide/nicotinate adenine dinucleotide (NAD+/NaAD) performs essential functions in cell metabolism and energy production due to its redox properties. The nicotinamide/nicotinate mononucleotide adenylyltransferase (NMNAT, EC 2.7.7.1/18) enzyme catalyses the key step in the biosynthesis of NAD+. Previously, the enzyme NMNAT was identified in Trypanosoma
Mem. Inst. Oswaldo Cruz. Publicado em: 24/10/2016
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24. Spectroelectrochemistry of Intrinsically Conducting Selenophene-3-Chlorothiophene Copolymers
The electrochemical copolymerization between selenophene and 3-chlorothiophene monomers was successfully realized. The influence of the applied polymerization potential and the monomer feed ratio on the copolymer properties were investigated, and the results revealed that the obtained polymer films strongly depended on the polymerization conditions. The obta
J. Braz. Chem. Soc.. Publicado em: 2016-05