نتایج جستجو برای: airway hyper responsiveness
تعداد نتایج: 141996 فیلتر نتایج به سال:
The novel once-daily β₂-agonist bronchodilator drug olodaterol has recently been shown to be effective in patients with allergic asthma for >24 hours. An increased cholinergic tone common to these patients may decrease the effectiveness of β₂-agonists. This could provide a rationale for combination therapy with olodaterol and the long-acting anticholinergic tiotropium to aim for a once-daily tr...
Whether mouse models of chronic asthma can be used to investigate the relationship between airway inflammation/remodeling and airway hyper-responsiveness (AHR) is a vexed question. It raises issues about the extent to which such models replicate key features of the human disease. Here, we review some of the characteristic pathological features of human asthma and their relationship to AHR and e...
Although mechanisms involved in the pathogenesis of asthma remain unclear, roles for oxidative/nitrosative stress, epithelial cell apoptosis, and airway inflammation have been documented. Ceramide is a sphingolipid with potent proinflammatory and proapoptotic properties. This study aimed at determining whether increased formation of ceramide contributes to the development of airway inflammation...
Airway epithelium defends the invasion from microorganisms and regulates immune responses in allergic asthma. Thymic stromal lymphopoietin (TSLP) from inflamed epithelium promotes maturation of dendritic cells (DCs) to prime Th2 responses via CCL17, which induces chemotaxis of CD4(+) T cells to mediate inflammation. However, few studies have investigated the regulation of epithelial CCL17. In t...
Dendritic cells play an important role in determining whether naïve T cells mature into either Th1 or Th2 cells. We determined whether heat-shock protein X (HspX) purified from Mycobacterium tuberculosis regulates the Th1/Th2 immune response in an ovalbumin (OVA)-induced murine model of asthma. HspX increased interferon-gamma, IL-17A, -12 and transforming growth factor (TGF)-β production and T-...
Asthma is an increasingly common respiratory condition characterized by reversible airway obstruction, bronchial hyper-responsiveness and airway inflammation with a clear unmet need for more effective therapy. Eosinophilic asthma is a phenotype of the condition that features increased blood or sputum eosinophils whose numbers correlate with disease severity. Several lines of evidence are now em...
Innate lymphoid cells (ILCs), a newly identified member of the lymphoid population, play a critical role in the transition from innate to adaptive immunity in host defense. ILCs are important in mucosal barrier immunity, tissue homeostasis, and immune regulation throughout the body. Significant alterations in ILC responses in lung diseases have been observed and reported. Emerging evidence has ...
This article is being retracted at the request of the authors because of concerns about the accuracy of the initial data from the animal physiology laboratory at Duke University. The authors re-exported source data from the animal ventilator (FlexiVent) and compared the output with the raw data originally received from the animal pulmonary physiology laboratory. The results from these initial c...
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