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Study Objectives Idiopathic diaphragm paralysis is probably more common and responsible for more morbidity than generally appreciated. Bell’s palsy, or idiopathic paralysis of the seventh cranial nerve, may be seen as an analogous condition. The roles of zoster sine herpete and herpes simplex have increasingly been recognized in Bell’s palsy, and there are some data to suggest that antiviral therapy...
Medical imaging is the largest contributor to per capita radiation dose in the United States. A majority of that medical imaging dose can be attributed to the increasing number of computed tomography (CT) procedures performed every year, at last count more than 62 million scans. As a result, increased attention to the possible risks of radiation exposure has entered the popular media and therefore...
Interstitial lung disease (ILD) associated with polymyositis/dermatomyositis (ILD-PM/DM), including amyopathic dermatomyositis (ADM), is recognized as an important condition because it frequently causes death, despite intensive therapy with high-dose corticosteroid and immunosuppressive agents, such as cyclosporine A and cyclophosphamide. Intravenous immunoglobulin therapy (IVIG) has shown efficacy...
Study Objectives Pulmonary involvement is a major cause of morbidity and mortality in patients with sickle cell disease (SCD). Although a high prevalence of airway hyperresponsiveness (AHR) has been reported, there are no studies demonstrating the relationship between AHR and acute chest syndrome (ACS) in adults with SCD. We investigated AHR prevalence, lung function abnormalities, and the relationships...
Recent microarray analyses revealed that a disintegrin and metalloproteinase (ADAM) 8 (ADAM8; also called CD156) is one of the asthma candidate genes. However, the function of ADAM8 and its localization in the airways are still poorly understood. In the present study, the changes in the expression and localization of ADAM8 in the airways of a mouse model of allergic bronchial asthma were investigated...
The most characteristic feature of airway inflammation in cystic fibrosis (CF) is the persistent infiltration of massive numbers of neutrophils. Although inflammation is primarily a protective response to injury, it has the potential to cause considerable harm when it is excessive. Recent recognition of the prominent role of inflammation has prompted the investigation of treatments designed to control...
The subepithelial fibrosis component of airway remodeling in asthma is mediated through induction of transforming growth factor-β1 (TGF-β1) expression with consequent activation of myofibroblasts to produce extracellular matrix proteins. The number of myofibroblasts is increased in the asthmatic airway and is significantly correlated with the thickness of lamina reticularis. However, much is still...
Chronic obstructive pulmonary disease (COPD) is a leading cause of death worldwide, with a continually rising mortality rate. As COPD is driven by abnormal pulmonary and systemic inflammation, Toll-like receptors (TLRs) seem to be important. TLRs play a key role in innate response, and in particular TLR2 gene polymorphisms Arg677Trp and Arg753Gln have been linked to an increased risk of infection...
Emphysema is the major component of chronic obstructive pulmonary disease (COPD), which is the fourth leading cause of death in the world. Several epidemiologic studies suggest that genetic factors may have an important role in the pathogenesis of emphysema. We analyzed the gene expression profiles of chromosomal aberrations using array comparative genomic hybridization (array CGH) in 32 patients...
Disturbed sleep is reportedly common in chronic obstructive pulmonary disease (COPD), but the impact of quality of sleep on health-related quality of life (HRQL) has not been previously investigated in these individuals. The purpose of this study was to assess the impact of quality of sleep on HRQL in patients with COPD. In 30 clinically stable patients with moderate to very severe COPD, we evaluated...
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