l glutathione/hypoxie

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Hypoxia-induced endothelial dysfunction in apolipoprotein E-deficient mice; effects of infliximab and L-glutathione.

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OBJECTIVE Obstructive sleep apnoea (OSA) has been implicated as a risk factor for atherosclerosis. The aim of our study was to examine the effects of chronic intermittent hypoxia in apoE-/- mice serving as model of OSA on endothelial dysfunction and oxidative stress and to evaluate the reversibility

Inhibition of sulfur compounds and antioxidants on MMP-2 and -9 at the activity level found during neonatal hypoxia-reoxygenation.

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The inhibitory effect of different sulfur compounds and antioxidants at the activity level of matrix metalloproteinase (MMP)-2 and -9 during neonatal hypoxia-reoxygenation is unknown. The tissue activity of MMP-2 and -9 was first determined by gelatin zymography in different tissues of 6 newborn

Intermittent Hypoxia Contributes to the Lung Damage by Increased Oxidative Stress, Inflammation, and Disbalance in Protease/Antiprotease System.

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Intermittent hypoxia as a surrogate of obstructive sleep apnea is associated with different cardiovascular complications. However, the effects of intermittent hypoxia on the lung tissue are less known. Therefore, the aim of our present study was to investigate if intermittent hypoxia may influence

Inhibition of hypoxia-inducible factor 1 activity by nitric oxide donors in hypoxia.

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Nitric oxide (NO) is known to have various biologic and pathophysiologic effects on organisms. The molecular mechanisms by which NO exerts harmful effects are unknown, although various O2 radicals and ions that result from reactivity of NO are presumed to be involved. Here we report that adaptive

Relationship between cell adenosine triphosphate and glutathione content and protection by glycine against hypoxic proximal tubule cell injury.

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We designed studies to characterize metabolic aspects of the protective effects of glycine and glutathione against hypoxic proximal tubule cell injury b clarifying the relationship between protection and preservation of tubule cell adenosine triphosphate (ATP) and glutathione levels. The tubule

Sulfhydryl-dependent dimerization of soluble guanylyl cyclase modulates the relaxation of porcine pulmonary arteries to nitric oxide.

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The dimeric status of nitric oxide (NO)-sensitive soluble guanylyl cyclase (sGC) is obligatory for its catalyzing activity to synthesis the second messenger cyclic guanosine monophosphate (cGMP), which leads to vasodilatation. The present study was conducted to determine whether or not the

Role of sulfhydryl-dependent dimerization of soluble guanylyl cyclase in relaxation of porcine coronary artery to nitric oxide.

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OBJECTIVE Soluble guanylyl cyclase (sGC) is a heterodimer. The dimerization of the enzyme is obligatory for its function in mediating actions caused by agents that elevate cyclic guanosine monophosphate (cGMP). The present study aimed to determine whether sGC dimerization is modulated by

Effects of S-adenosyl-L-methionine on lipid peroxidation and glutathione levels in rat brain slices exposed to reoxygenation after oxygen-glucose deprivation.

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We analyzed the effects of S-adenosyl-L-methionine (AdoMet) on tissue oxidative stress in rat brain slices exposed to reoxygenation after oxygen-glucose deprivation. The thiobarbituric acid reactive substances (TBARS), total and oxidized glutathione, and lactate-dehydrogenase efflux (LDH) from

Protection by exogenous glutathione against hypoxic and cyanide-induced damage to isolated perfused rat livers.

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In experiments with isolated perfused livers from fasted rats, addition of 2 mmol/l glutathione (GSH) to the perfusion medium protected against hepatic damage induced by cyanide or hypoxia and reoxygenation as evidenced by leakage of lactate dehydrogenase and hepatic calcium accumulation. In control

Intrinsic radiosensitivity of human pancreatic tumour cells and the radiosensitising potency of the nitric oxide donor sodium nitroprusside.

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A panel of eight human pancreatic tumour cell lines displayed high intrinsic radioresistance, with mean inactivation doses between 2.4 and 6.5 Gy, similar to those reported for melanoma and glioblastoma. The radiosensitising potency of sodium nitroprusside, a bioreductive nitric oxide donor, was

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