نتایج جستجو برای: airway reactivity
تعداد نتایج: 138470 فیلتر نتایج به سال:
Wu, Z.-X., B. E. Satterfield, J. S. Fedan, and R. D. Dey. Interleukin-1 -induced airway hyperresponsiveness enhances substance P in intrinsic neurons of ferret airway. Am J Physiol Lung Cell Mol Physiol 283: L909–L917, 2002. First published April 12, 2002; 10.1152/ajplung.00363.2001.—Interleukin (IL)-1 causes airway inflammation, enhances airway smooth muscle responsiveness, and alters neurotra...
The effect of deep inspiration (DI) on airway responsiveness differs in asthmatic and normal human subjects. The mechanism for the effects of DI on airway responsiveness in vivo has not been identified. To elucidate potential mechanisms, we compared the effects of DI imposed before or during induced bronchoconstriction on the airway response to methacholine (MCh) in rabbits. The changes in airw...
Asthma is functionally characterized by increased airway sensitivity and reactivity. Multiple mechanisms are believed to underlie these functional disorders, including impairment of airway wall barrier function. One proposed mechanism of impaired barrier function is through the direct consequence of proteolytic properties of inhaled allergens, including house dust mite (HDM). Here, we have obse...
Cysteinyl leukotrienes (CysLTs) exert potent proinflammatory actions and contribute to many of the symptoms of asthma. Using a model of allergic sensitization and airway challenge with Aspergillus fumigatus (Af), we have found that Th2-type inflammation and airway hyperresponsiveness (AHR) to methacholine (MCh) were associated with increased LTD(4) responsiveness in mice. To explore the importa...
Competition between nitric oxide synthases (NOSs) and arginases for their common substrate l-arginine could be involved in the regulation of cholinergic airway reactivity and subsequent airway remodeling. The aims of this study were to evaluate the relationships between the expression of this enzymatic balance and the effects of NOS and arginase inhibition on bronchoconstrictive response to ace...
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