Results 61 to 70 of about 300,913 (307)
In this study, we investigated the effects of preincubation with the reactive oxygen species-generating system xanthine oxidase/xanthine on Ca2+-dependent potassium permeability of erythrocyte membrane. The increase of intracellular calcium concentration
O. A. Trubacheva+6 more
doaj +1 more source
Formamide as a substrate of xanthine oxidase [PDF]
Formamide is a substrate of xanthine oxidase. At pH 8.2 and 1.14 mM-O2, Vmax.(app.) is 3.1 s-1 and Km (app.) is 0.7 M. Mo(V) e.p.r. signals obtained by treating the enzyme with formamide were studied, and these provide new information about the ligation of molybdenum in the enzyme and about the enzymic mechanism.
Robert C. Bray+2 more
openaire +3 more sources
Alcool e radicais livres de oxigénio.
Oxygen free radicals may be generated during ethanol metabolization by cytochrome P450, or due to the formation of xanthine oxidase by ethanol effect on xanthine dehydrogenase.
M L Mira, C F Manso
doaj +1 more source
Hyperuricemia, an abnormally high level of blood uric acid, is a major risk factor for gout. Although xanthine oxidase inhibitors were clinically used to lower blood uric acid level, the concerned side effects restricted their utilization. In this study,
Kuo-Ching Huang+8 more
doaj +1 more source
Potential role of NADPH-oxidase in early steps of lead-induced oxidative burst in Vicia faba roots [PDF]
The mechanism of oxidative burst induced by lead in Vicia faba excised roots was investigated by luminol-dependent chemiluminescence. Results showed that lead triggered a rapid and dose-dependent increase in chemiluminescence production.
Cecchi, Marie+5 more
core +3 more sources
Uji Penghambatan Xantin Oksidase Secara In Vitro Ekstrak Kulit Rambutan
Hyperuricemia is a condition that uric acid levels increased and cause accumulated uric acid crystals in the tissues. Xanthine oxidase is an enzyme which catalyze the oxidation of hypoxanthine into xanthine and into uric acid.
Nurul Eka Putri+2 more
doaj +1 more source
The present study aims to improve the biological activities of luteolin by complexation with manganese(II). UV-visible spectroscopy, infrared spectroscopy, thermogravimetric analysis and elemental analysis were adopted to assess the relevant interaction ...
Hao Dong+5 more
semanticscholar +1 more source
Inflammation and oxidative stress contribute to the pathophysiology of diabetic neuropathy. According to recent evidence, the modulation of macrophage polarization in peripheral nerves represents a potential therapeutic target for diabetic neuropathy ...
Kazuhisa Takahashi+9 more
doaj
Reactive oxygen-related diseases: therapeutic targets and emerging clinical indications [PDF]
SIGNIFICANCE Enhanced levels of reactive oxygen species (ROS) have been associated with different disease states. Most attempts to validate and exploit these associations by chronic antioxidant therapies have provided disappointing results. Hence, the
Ana I. Casas+21 more
core +2 more sources
Allopurinol use yields potentially beneficial effects on inflammatory indices in those with recent ischemic stroke: a randomized, double-blind, placebo-controlled trial [PDF]
<p><b>Background and Purpose</b>: Elevated serum uric acid level is associated with poor outcome and increased risk of recurrent events after stroke.
Dawson, J.+6 more
core +1 more source