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Nitric oxide (NO) is a major regulatory molecule of the cardiovascular system; however, measurement of vascular NO synthesis in vivo represents a major challenge. NO stemming from the lower respiratory tract has been used as a marker of vascular endothelial function. Experimental evidence for this concept is lacking. Therefore, the aim of the present study(More)
BACKGROUND Insulin resistance and arterial hypertension are related, but the underlying mechanism is unknown. Endothelial nitric oxide synthase (eNOS) is expressed in skeletal muscle, where it may govern metabolic processes, and in the vascular endothelium, where it regulates arterial pressure. METHODS AND RESULTS To study the role of eNOS in the control(More)
High-altitude pulmonary edema (HAPE) is a life-threatening condition occurring in predisposed subjects at altitudes above 2,500 m. It is not clear whether, in addition to hemodynamic factors and defective alveolar fluid clearance, inflammation plays a pathogenic role in HAPE. We therefore made serial measurements of exhaled pulmonary nitric oxide (NO), a(More)
High-altitude pulmonary oedema (HAPE) occurs in predisposed individuals at altitudes >2,500 m. Defective alveolar fluid clearance secondary to a constitutive impairment of the respiratory transepithelial sodium transport contributes to its pathogenesis. Hypoxia impairs the transepithelial sodium transport in alveolar epithelial type II cells in vitro. If(More)
Improved glycemic control with a bionic pancreas and recent safety data of a wearable artificial pancreas may be relevant for kidney transplant recipients with type 1 diabetes [1, 2]. Diabetes is a major risk factor for end-stage renal disease, and the DCCT trial showed that tight glycemic control is superior to conventional insulin therapy to prevent(More)
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