oleic acid/hypoxia

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Nitro-Oleic Acid Prevents Hypoxia- and Asymmetric Dimethylarginine-Induced Pulmonary Endothelial Dysfunction.

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BACKGROUND Pulmonary hypertension (PH) represents a serious health complication accompanied with hypoxic conditions, elevated levels of asymmetric dimethylarginine (ADMA), and overall dysfunction of pulmonary vascular endothelium. Since the prevention strategies for treatment of PH remain largely

[Oleic acid-induced PaO2 decrease model for primary screening of drugs for hypoxemia: effects of tranexamic acid and procaterol hydrochloride on the decrease in PaO2].

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We constructed an oleic acid (OA)-induced PaO2 decrease model in guinea pigs. We then examined several basic conditions to establish the primary screening model to determine useful drugs for hypoxemia. Hartley strain guinea pigs were anesthetized with pentobarbital (25 mg/kg) and catheterized into

Treatment of pulmonary hypertension and hypoxia due to oleic acid induced lung injury with intratracheal prostaglandin E1 during partial liquid ventilation.

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BACKGROUND Partial liquid ventilation using perfluorocarbon liquids may be of therapeutic benefit in patients with acute respiratory failure. This study investigated the effects of prostaglandin E1 (PGE1) delivered intratracheally during partial liquid ventilation on lung function and pulmonary

Preventive effect of phosphoenolpyruvate on hypoxemia induced by oleic acid in Guinea pigs.

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Oleic acid-induced hypoxemia is an animal model of acute respiratory distress syndrome (ARDS). Increased capillary permeability is a cause of hypoxemia in lung injury. Endothelial cells form a major capillary barrier, and disruption of the barrier appears to involve a decreased level of ATP in the

[Experimental study on effect of altitude xishi capsule in treating oleic acid induced lung injury in acute hypoxia rats].

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OBJECTIVE To explore the effect and pathophysiological mechanism of Altitude Xishi Capsule (XSC) on lung injury during acute hypoxia. METHODS A new model of acute lung injury was established by administering oleic acid into superior vena cava in experimental rat during acute hypoxia, which was

Protective effects of 10-nitro-oleic acid in a hypoxia-induced murine model of pulmonary hypertension.

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Pulmonary arterial hypertension (PAH) is characterized by adverse remodeling of pulmonary arteries. Although the origin of the disease and its underlying pathophysiology remain incompletely understood, inflammation has been identified as a central mediator of disease progression. Oxidative

Effect of exposure to hypoxia from birth on aldosterone in rabbits: role of unesterified fatty acids.

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Hypoxia and fluid and electrolyte disturbances are serious risks to normal postnatal development. Because a decrease in inspired O2 (hypoxic hypoxia) inhibits aldosterone synthesis in the adult and aldosterone controls water and electrolyte balance, we studied adrenocortical function in rabbits

Pentoxifylline prevents a decrease in arterial oxygen tension in oleic acid-induced lung injury.

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OBJECTIVE a) To determine whether pentoxifylline has a preventive effect on the decrease in PaO2 that is caused by oleic acid, and whether pentoxifylline facilitates normalization of PaO2 from the decreased state. b) To examine whether pentoxifylline can attenuate an increase in pulmonary vascular

The effect of regional lung injury or alveolar hypoxia on pulmonary blood flow and lung water measured by positron emission tomography.

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We measured regional pulmonary blood flow (rPBF) and extravascular lung water (rEVLW) with positron emission tomography (PET) before and after a lobar lung injury induced by oleic acid in dogs. Changes in rPBF after injury were also compared with those observed after alveolar hypoxia limited to a

Interactive effects of hypoxia, carbon monoxide and acute lung injury on oxygen transport and aerobic capacity.

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This study determined how breathing hypoxic gas, reducing circulatory capacitance for O2 by breathing CO, and impairing pulmonary gas exchange by acutely injuring the lungs interact to limit cardiopulmonary O2 delivery, O2 extraction and maximal aerobic capacity (VO2max). Five goats ran on a

Bronchoalveolar Lavage and Oleic Acid-Injection in Pigs as a Double-Hit Model for Acute Respiratory Distress Syndrome (ARDS)

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The treatment of ARDS continues to pose major challenges for intensive care physicians in the 21st century with mortality rates still reaching up to 50% in severe cases. Further research efforts are needed to better understand the complex pathophysiology of this disease. There are different

Hemodynamic and pathologic effects of prostacyclin on oleic acid-induced pulmonary injury.

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Oleic acid (OA) injection into the lungs of dogs produces pulmonary edema and decreased cardiac output, and the result is combined hypoxic and stagnant hypoxia. Prostacyclin (PGI2) has some effects that may be beneficial in the alleviation of hypoxia. We studied 18 anesthetized dogs that were

Pulmonary administration of prostacyclin (PGI2) during partial liquid ventilation in an oleic acid-induced lung injury: inhalation of aerosol or intratracheal instillation?

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OBJECTIVE The purpose of this study was to investigate the effects of aerosolized prostacyclin (A-PGI2) and intratracheally instilled prostacyclin (I-PGI2) during partial liquid ventilation (PLV) on gas exchange and pulmonary circulation in rabbits with acute respiratory

The role of the pulmonary afferent receptors in producing hemodynamic changes during hyperinflation and endotracheal suctioning in an oleic acid-injured animal model of acute respiratory failure.

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The purpose of this study was to examine the role of the pulmonary afferent receptors in producing hemodynamic changes during hyperinflation and endotracheal suctioning (ETS) in an oleic acid-injured animal model of acute respiratory failure. Previous investigations of hyperinflation as a method to

Ghrelin ameliorates acute lung injury induced by oleic acid via inhibition of endoplasmic reticulum stress.

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OBJECTIVE Acute lung injury (ALI) is associated with excessive mortality and lacks appropriate therapy. Ghrelin is a novel peptide that protects the lung against ALI. This study aimed to investigate whether endoplasmic reticulum stress (ERS) mediates the protective effect of ghrelin on

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