hypercapnia/necrosis

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Therapeutic hypercapnia prevents bleomycin-induced pulmonary hypertension in neonatal rats by limiting macrophage-derived tumor necrosis factor-α.

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Bleomycin-induced lung injury is characterized in the neonatal rat by inflammation, arrested lung growth, and pulmonary hypertension (PHT), as observed in human infants with severe bronchopulmonary dysplasia. Inhalation of CO(2) (therapeutic hypercapnia) has been described to limit cytokine

Potentiating influence of apnea, hypoxia, and hypercapnia on bile-induced hemorrhagic pancreatic necrosis.

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Effects of hypercapnia on nuclear factor-kappaB and tumor necrosis factor-alpha in acute lung injury models.

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Stability of brain intracellular lactate and 31P-metabolite levels at reduced intracellular pH during prolonged hypercapnia in rats.

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The tolerance of low intracellular pH (pHi) was examined in vivo in rats by imposing severe, prolonged respiratory acidosis. Rats were intubated and ventilated for 10 min with 20% CO2, for 75 min with 50% CO2, and for 10 min with 20% CO2. The maximum PaCO2 was 320 mm Hg. Cerebral intracellular

Enhancement effects of hypercapnia on the acute lung injury caused by acid aspiration.

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Acid aspiration or intrapulmonary instillation of gastric particles causes lung inflammation leading to acute lung injury (ALI). Hypercapnia exerts different effects on ALI caused by various insults. The effects of hypercapnia on lung inflammation and injury due to acid aspiration are yet to be

Therapeutic hypercapnia prevents inhaled nitric oxide-induced right-ventricular systolic dysfunction in juvenile rats.

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Chronic pulmonary hypertension in the neonate and infant frequently presents with right-ventricular (RV) failure. Current clinical management may include protracted treatment with inhaled nitric oxide (iNO), with the goal of reducing RV afterload. We have previously reported that prolonged exposure

Therapeutic hypercapnia is not protective in the in vivo surfactant-depleted rabbit lung.

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Permissive hypercapnia because of reduced tidal volume is associated with improved survival in lung injury, whereas therapeutic hypercapnia-deliberate elevation of arterial Pco2-protects against in vivo reperfusion injury and injury produced by severe lung stretch. No published studies to date have

[Interleukin-6 and tumor necrosis factor-alpha levels of endothelial cells in different hypoxia modes: in vitro experiment].

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OBJECTIVE To investigate the damage of different patterns of intermittent hypoxia (IH) and continuous hypoxia (CH) on endothelial cells. METHODS Human umbilical vein endothelial cells of the line ECV304 were cultured in a program-controlled gas delivery system newly developed and divided into 8

Impact of hypoxia and hypercapnia on calcium oxalate toxicity in renal epithelial and interstitial cells.

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Although there is an ongoing controversy about the primary site of calcium oxalate stone (CaOx) formation, there is some evidence for extratubular crystallization. However, the mechanisms leading to such interstitial calcifications are not clear. Anatomical studies have demonstrated a close

Effects of acute hypercapnia on cognitive function in patients undergoing bronchoscope intervention.

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There are multiple studies that have revealed that hypercapnia possessed neuroprotection, the conclusive cognitive impacts of permissive hypercapnia in medicine is still unclear.A total of 102 patients registered for this research work had accomplished

Ventilatory dysfunction in mdx mice: impact of tumor necrosis factor-alpha deletion.

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Muscular dystrophy is associated with inflammation and fiber necrosis in the diaphragm that may alter ventilatory function. The purpose of this study was to determine to what extent in vivo ventilatory function in dystrophic (mdx) mice was compromised and to assess the impact of deletion of tumor

Elevated CO2 selectively inhibits interleukin-6 and tumor necrosis factor expression and decreases phagocytosis in the macrophage.

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Elevated blood and tissue CO(2), or hypercapnia, is common in severe lung disease. Patients with hypercapnia often develop lung infections and have an increased risk of death following pneumonia. To explore whether hypercapnia interferes with host defense, we studied the effects of elevated P(CO2)

Effect of Therapeutic Hypercapnia on Inflammatory Responses to One-lung Ventilation in Lobectomy Patients.

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BACKGROUND One-lung ventilation (OLV) can result in local and systemic inflammation. This prospective, randomized trial was to evaluate the effect of therapeutic hypercapnia on lung injury after OLV. METHODS Fifty patients aged 20 to 60 yr undergoing lobectomy were randomly provided with air or

Effects of Hypercapnia on Acute Cellular Rejection after Lung Transplantation in Rats.

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Hypercapnia alleviates pulmonary ischemia-reperfusion injury, regulates T lymphocytes, and inhibits immune reaction. This study aimed to evaluate the effect of hypercapnia on acute cellular rejection in a rat lung transplantation model. Recipient rats in sham-operated (Wistar), isograft (Wistar to

The Role of Tumor Necrosis Factor Alpha and TNF Superfamily Members in Bone Damage in Patients with End-Stage Chronic Obstructive Lung Disease Prior to Lung Transplantation.

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A disequilibrium of tumor necrosis superfamily (TNF) members, including the serum osteoprotegerin, soluble receptor activator of nuclear factor-κB ligand, soluble TNF-related apoptosis-inducing ligand and TNF-α, was associated with the occurrence of a reduced skeletal mass and osteoporosis in male

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