gamma glutamyl cysteine/hypoxia

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Chronic hypoxia differentially increases glutathione content and gamma-glutamyl cysteine synthetase expression in fetal guinea pig organs.

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OBJECTIVE Glutathione is a natural antioxidant in the fetus and adult. We sought to determine whether maternal hypoxia alters glutathione levels in fetal organs as an adaptive response to the reduced oxygenation. METHODS Timed pregnant guinea pigs were housed in either a Plexiglas chamber containing

Chronic hypoxia and glutathione-dependent detoxication in rat small intestine.

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It has previously been found that chronic O2 deficiency decreases activity of the enzymes of the glutathione (GSH) redox system in the liver. To study the effects of O2 deficiency on intestinal detoxication capacity, pair-fed (16 g food/day) Sprague-Dawley rats were exposed to air (20.9% O2; n = 4)

Echinacoside alleviates hypobaric hypoxia-induced memory impairment in C57 mice.

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Acute hypobaric hypoxia (HH) gives rise to persistent cognitive impairment, influencing memory function specifically. Echinacoside (ECH), one of the phenylethanoids isolated from the stems of Cistanche salsa, has been reported to prevent ischemia induced by neuronal injury traditionally. This study

Net efflux of cysteine, glutathione and related metabolites from rat hippocampal slices during oxygen/glucose deprivation: dependence on gamma-glutamyl transpeptidase.

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Extracellular metabolism of the protective substance glutathione (gamma-glutamyl-cysteinyl-glycine) may generate cysteine, glycine, several gamma-glutamyl-containing dipeptides and possibly free glutamate, all of which could participate in neurotoxicity. In the present study, we have examined how

Repair Effects of KGF on Ischemia-Reperfusion-Induced Flap Injury via Activating Nrf2 Signaling.

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Ischemia-reperfusion (IR) injury is a main cause to and the mechanism of necrosis after flap transplantation. Researches were hardly conducted on the role and possible mechanism of keratinocyte growth factor (KGF) in association with IR flap injury.

MATERIALS

Prolonging in utero-like oxygenation after birth diminishes oxidative stress in the lung and brain of mice pups.
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BACKGROUND Fetal-to-neonatal transition is associated with oxidative stress. In preterm infants, immaturity of the antioxidant system favours supplemental oxygen-derived morbidity and mortality. OBJECTIVE To assess if prolonging in utero-like oxygenation during the fetal-to-neonatal transition

Reduced muscle redox capacity after endurance training in patients with chronic obstructive pulmonary disease.
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The present study was undertaken to test whether endurance training in patients with COPD, along with enhancement of muscle bioenergetics, decreases muscle redox capacity as a result of recurrent episodes of cell hypoxia induced by high intensity exercise sessions. Seventeen patients with COPD

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