Results 61 to 70 of about 300,913 (307)

Participation of reactive oxygen species in regulation of Са2+ - activated К + channels of erythrocytes

open access: yesБюллетень сибирской медицины, 2009
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]

open access: yesBiochemical Journal, 1984
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.

open access: yesActa Médica Portuguesa, 1993
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

Alleviation of Hyperuricemia by Strictinin in AML12 Mouse Hepatocytes Treated with Xanthine and in Mice Treated with Potassium Oxonate

open access: yesBiology, 2023
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]

open access: yes, 2008
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

open access: yesPharmaceutical Sciences and Research, 2016
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

Enhanced antioxidant activity, antibacterial activity and hypoglycemic effect of luteolin by complexation with manganese(II) and its inhibition kinetics on xanthine oxidase

open access: yes, 2017
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

Inhibitory effects of xanthine oxidase inhibitor, topiroxostat, on development of neuropathy in db/db mice

open access: yesNeurobiology of Disease, 2021
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]

open access: yes, 2015
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]

open access: yes, 2008
<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

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