Pro Oxidant
Mostrando 1-12 de 66 artigos, teses e dissertações.
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1. Diethyl Selenodiglycolate: An Eco-Friendly Synthetic Antioxidant with Potential Application to Inflammatory Disorders
This study describes a single step, high yield and purity, ecofriendly and scalable procedure to prepare a selenium derivative (diethyl selenodiglycolate). Diethyl selenodiglycolate rapidly reduces hypochlorous acid (HOCl, second-order rate constant of 7 × 107 M−1 s−1) to generate its corresponding selenoxide. In activated HL-60 cells, diethyl selenodig
J. Braz. Chem. Soc.. Publicado em: 2020-06
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2. Schizandrin A exerts anti-tumor effects on A375 cells by down-regulating H19
Malignant melanoma (MM) is one of the malignant tumors with highly metastatic and aggressive biological actions. Schizandrin A (SchA) is a bioactive lignin compound with strong anti-oxidant and anti-aging properties, which is stable at room temperature and is often stored in a cool dry place. Hence, we investigated the effects of SchA on MM cell line A375 an
Braz J Med Biol Res. Publicado em: 10/10/2019
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3. Inhibition of growth of U87MG human glioblastoma cells by Usnea longissima Ach.
Abstract: Herbal medicines are efficient to reduce side effects in the fight against glioblastoma, which plays a critical role within brain cancer species. The recent studies designated for testing the effects of lichens that have shown numerous anticancer activities on glioblastoma so far. In the present study, different concentrations of water extract obta
An. Acad. Bras. Ciênc.. Publicado em: 07/10/2019
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4. UM ESTUDO CINÉTICO SOBRE A INFLUÊNCIA DE MEDIADORES FENÓLICOS NA DESCOLORAÇÃO DE DIFERENTES CORANTES POR SISTEMAS FENTON
The present work evaluated the influence of phenolic mediators (five dihydroxybenzenes and gallic acid) on the decolorization kinetics of phenol red, chromotrope 2R, and methylene blue by Fenton systems. The reactions were performed with H2O2, iron salts as catalysts, and the absence or presence of phenolic mediators. Based on the decolorization data from pr
Quím. Nova. Publicado em: 2019-02
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5. Evaluating clinical and laboratory effects of ozone in non-surgical periodontal treatment: a randomized controlled trial
Abstract Objective: This study aims to evaluate the clinical and biochemical (oxidative stress and pro-inflammatory mediators) effects of the gaseous ozone use accompanied by scaling and root planning (SRP) in periodontal treatment. Material and Methods: The study population consisted of 40 patients with chronic periodontitis (CP) randomly sorted into two
J. Appl. Oral Sci.. Publicado em: 14/01/2019
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6. Effects of Aliskiren, an RAAS inhibitor, on a carrageenan-induced pleurisy model of rats
Abstract Our aim is to investigate the potentially preventive effects of Aliskiren in a carrageenan-induced lung pleurisy model and to compare the standard anti-inflammatory agents, indomethacin and dexamethasone. The pleurisy model was induced through the injection of carrageenan (0.2 ml-%2) into the pleural cavity. After the experiment, serum and lung tiss
An. Acad. Bras. Ciênc.. Publicado em: 17/12/2018
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7. Effects of N-acetylcysteine on spinal cord oxidative stress biomarkers in rats with neuropathic pain
N-acetylcysteine (NAC) inhibits nociceptive transmission. This effect has been associated partly with its antioxidant properties. However, the effect of NAC on the levels of lipid hydroperoxides (a pro-oxidant marker), content of ascorbic acid (a key antioxidant molecule of nervous tissue) and total antioxidant capacity (TAC) is unknown. Thus, our study asse
Braz J Med Biol Res. Publicado em: 19/10/2017
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8. Effect of Metal Acetylacetonates on the Photooxidative Destruction of High Density Polyethylene
The process of photooxidative destruction of high density polyethylene films containing different organic complexes of polyvalent metals as pro-oxidant additives after UV- irradiation was studied. During exposure to UV- irradiation, the more significant changes in the mechanical and thermal properties were detected for the foils containing pro-oxidant additi
Mat. Res.. Publicado em: 14/07/2016
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9. Biodegradation of additive PHBV/PP-co-PE films buried in soil
Abstract There is considerable concern about the impact plastic materials have on the environment due to their durability and resistance to degradation. The use of pro-oxidant additives in the polymer films could be a viable way to decrease the harmful effects of these discarded materials. In this study, films of PHBV/PP-co-PE (80/20 w/w) and PHBV/PP-co-PE/a
Polímeros. Publicado em: 14/06/2016
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10. Optimization of Reaction Conditions for Cyclohexane to Cyclohexanone with t-Butylhydroperoxide Over CuCl2 Loaded with Activated Carbon
Catalytic oxidation of hydrocarbons can be performed efficiently in the presence of tert- butylhydroperoxide (TBHP) under a low-valent transition metal as the catalyst. CuCl2 loaded with activated carbon had synthesized and characterized by X-ray diffraction (XRD) and energy-dispersive X-ray spectroscopy (EDX), and then utilized as a catalyst for the oxidati
J. Braz. Chem. Soc.. Publicado em: 2016-01
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11. Effects of the Dietary Supplementation of Sucupira (Pterodon Emarginatus Vog.) and Copaiba (Copaifera Langsdorffii) Resinoils on Chicken Breast and Thigh Meat Quality and Oxidative Stability
ABSTRACT An experiment was conducted to evaluate the addition of the oil resins ofsucupira (Pterodon emarginatus Vog.) and copaiba (Copaifera langsdorffii) to broiler diets on chicken meat composition, quality, and lipid peroxidation. 350 one-d-old broiler chicks were submitted to seven treatments, consisting of the diets supplemented with copaiba (COP) or s
Rev. Bras. Cienc. Avic.. Publicado em: 2015-12
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12. Study of oxo-biodegradable polyethylene degradation in simulated soil
This study aims to evaluate the influence of pro-oxidant additive and accelerated aging on the degradation of polyethylene (PE) samples in simulated soil, in accordance with ASTM G160-03. Films of polyethylene with and without pro-oxidant additive were studied, before and after 72 hours of accelerated aging. The films were initially characterized by analyses
Mat. Res.. Publicado em: 11/07/2014