Airway Hyperresponsiveness, Remodeling, and Smooth Muscle Mass
نویسندگان
چکیده
منابع مشابه
Airway hyperresponsiveness, remodeling, and smooth muscle mass: right answer, wrong reason?
We quantified the effects of airway wall remodeling upon airway smooth muscle (ASM) shortening. Isolated ASM from sheep was attached to a servo-controller that applied a physiologic load. This load could be altered to reflect specified changes of airway wall geometry, elasticity, parenchymal tethering, transpulmonary pressure (P(L)), and fluctuations in P(L) associated with breathing. Starting ...
متن کاملThe smooth muscle and airway hyperresponsiveness.
Airway hyperresponsiveness, excessive airway narrowing caused by stimuli that normally elicit limited or no response, is one of the cardinal features of asthma. The length-dependence of smooth muscle contractility has been recognized for decades, and it forms an essential foundation for many aspects of the physiological regulation of airway contractility in vivo. This review summarizes the stru...
متن کاملSites of allergic airway smooth muscle remodeling and hyperresponsiveness are not associated in the rat.
The cause-and-effect relationship between airway smooth muscle (ASM) remodeling and airway hyperresponsiveness (AHR) following allergen challenge is not well established. Using a rat model of allergen-induced ASM remodeling we explored the relationship between the site of ASM remodeling and AHR. Brown Norway rats, sensitized and challenged (3 times at 5-day intervals) with ovalbumin, were intra...
متن کاملAirway remodeling in asthma amplifies heterogeneities in smooth muscle shortening causing hyperresponsiveness.
Although airway remodeling and inflammation in asthma can amplify the constriction response of a single airway, their influence on the structural changes in the whole airway network is unknown. We present a morphometric model of the human lung that incorporates cross-sectional wall areas corresponding to the adventitia, airway smooth muscle (ASM), and mucosa for healthy and mildly and severely ...
متن کاملPoint:Counterpoint: Alterations in airway smooth muscle phenotype do/do not cause airway hyperresponsiveness in asthma POINT: ALTERATIONS IN AIRWAY SMOOTH MUSCLE PHENOTYPE DO CAUSE AIRWAY HYPERRESPONSIVENESS IN ASTHMA
Airway hyperresponsiveness and obstruction are cardinal features of asthma. Compelling evidence now suggests that the key features of asthma in part are due to intrinsic differences in airway smooth muscle (ASM) function. Inflammatory mediators alter ASM phenotype, which directly modulates ASM hyperresponsiveness and promotes airway remodeling that further contributes to amplified airway obstru...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: American Journal of Respiratory Cell and Molecular Biology
سال: 2007
ISSN: 1044-1549,1535-4989
DOI: 10.1165/rcmb.2006-0418oc