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- W2099058959 abstract "Ventilator-induced lung injury (VILI) leads to airway epithelial cell apoptosis and lung inflammation. High tidal volume ventilation in vivo has been shown to induce MIP-2 production, lung neutrophil sequestration and apoptotic airway cell death. This study aimed to determine the effect of N-acetylcysteine (NAC), a scavenger of oxygen radicals, on lung inflammation and apoptosis in an in vivo model of VILI.Sprague-Dawley rats (n = 5 per group) were ventilated at low tidal volume (V(T) 7 mL/kg) or high tidal volume (V(T) 20 mL/kg) with or without administration of 140 mg/kg of intravenous NAC. Animals were ventilated for 30 min, 1 or 2 h, then allowed to recover for 2 h, at which time neutrophil infiltration, MIP-2, TNF-alpha and IL-6 in BAL fluid, as well as the percentage of apoptotic airway epithelial cells, were measured.Ventilation at V(T) 20 mL/kg increased oxidant release, as measured by serum isoprostane, and decreased lung glutathione, the major antioxidant in the lung. NAC treatment during ventilation at V(T) 20 mL/kg prevented the decrease in lung glutathione and significantly lowered serum isoprostane levels, neutrophil infiltration, cytokines in the BAL and apoptosis in the airways as compared with animals ventilated at V(T) 20 mL/kg without NAC (P < 0.05).These data point to an early role of oxidant-induced inflammation and apoptosis in VILI." @default.
- W2099058959 created "2016-06-24" @default.
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- W2099058959 creator A5013737145 @default.
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- W2099058959 creator A5051876182 @default.
- W2099058959 date "2008-04-07" @default.
- W2099058959 modified "2023-10-16" @default.
- W2099058959 title "Oxidant stress mediates inflammation and apoptosis in ventilator-induced lung injury" @default.
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- W2099058959 doi "https://doi.org/10.1111/j.1440-1843.2008.01279.x" @default.
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