• Marek Lommatzsch.
• Department of Pneumology, University of Rostock, Rostock, Germany. marek.lommatzsch@med.uni-rostock.de
• Semin Respir Crit Care Med. 2012 Dec 1;33(6):579-87.

AbstractAirway hyperresponsiveness (AHR) is the most characteristic clinical feature of asthma. The pathogenesis of AHR in asthma is characterized by a variety of epithelial, microbial, and inflammatory triggers on one hand and abnormalities of effector structures in the airways such as smooth muscle cells, blood vessels, and nerves on the other hand. Obesity is increasingly recognized as an important additional factor in the diagnosis and the pathogenesis of AHR in asthma. It is important to note that structural changes in the asthmatic airway can persist in the absence of inflammation. This may be one reason for the observation that potent new antiinflammatory drugs for the treatment of asthma have only little impact on AHR. New therapeutic strategies are, therefore, needed to modulate structural and functional changes in the airways, especially in patients with treatment-resistant severe asthma.Thieme Medical Publishers 333 Seventh Avenue, New York, NY 10001, USA.

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