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Genetic mutations cause primary immunodeficiencies (PIDs) that predispose to infections. Here, we describe activated PI3K-δ syndrome (APDS), a PID associated with a dominant gain-of-function mutation in which lysine replaced glutamic acid at residue 1021 (E1021K) in the p110δ protein, the catalytic subunit of phosphoinositide 3-kinase δ (PI3Kδ), encoded by(More)
Although cellular mechanical properties are known to alter during stem cell differentiation, understanding of the functional relevance of such alterations is incomplete. Here, we show that during the course of differentiation of human myeloid precursor cells into three different lineages, the cells alter their viscoelastic properties, measured using an(More)
OBJECTIVES Transport of the critically ill patient to or from the emergency department (ED) is a frequent occurrence. This study was designed to determine whether UK EDs currently have appropriate equipment, monitoring, staff training systems, and processes of care for transportation of the critically ill patient. METHODS A postal questionnaire regarding(More)
OBJECTIVES To assess the correlation and agreement between measurements of PO(2), PCO(2), H(+) and HCO(3)(-) in arterial and capillary blood in patients with acute exacerbations of COPD. To assess the repeatability of capillary measurements. DESIGN Method comparison study. SETTING Accident and emergency department in a university teaching hospital. (More)
Aminopeptidase N (CD13) is a widely expressed cell surface metallopeptidase involved in the migration of cancer and endothelial cells. Apart from our demonstration that CD13 modulates the efficacy of tumor necrosis factor-α-induced apoptosis in neutrophils, no other function for CD13 has been ascribed in this cell. We hypothesized that CD13 may be involved(More)
BACKGROUND Inflamed environments are typically hypercellular, rich in pro-inflammatory cytokines, and profoundly hypoxic. While the effects of hypoxia on neutrophil longevity and function have been widely studied, little is known about the consequences of this stimulus on eosinophils. OBJECTIVE We sought to investigate the effects of hypoxia on several(More)
We describe the case of a 71-year-old man with idiopathic pulmonary fibrosis (usual interstitial pneumonia (UIP) pattern) diagnosed on clinical, radiological and lung function criteria, in accordance with the American Thoracic Society/European Respiratory Society consensus criteria (2000), who had been in close proximity to three atmospheric nuclear bomb(More)
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