T4 Increased reticular basement membrane thickness but NOT airway smooth muscle in endobronchial biopsies of severe preschool wheezers
نویسندگان
چکیده
منابع مشابه
Relationship between past airway pathology and current lung function in preschool wheezers.
The functional outcome in preschool severe wheezers with eosinophilic airway inflammation and increased reticular basement membrane (RBM) thickness is unknown. We investigated the relationship between airway pathology at age 2 yrs and lung function at age 4-6 yrs in previous severe wheezers. Severe wheezers previously investigated by endobronchial biopsy and healthy children aged 4-6 yrs were r...
متن کاملAirway smooth muscle thickness in asthma is related to severity but not duration of asthma.
Asthma is characterised by an increased airway smooth muscle (ASM) area (ASM(area)) within the airway wall. The present study examined the relationship of factors including severity and duration of asthma to ASM(area). The perimeter of the basement membrane (PBM) and ASM(area) were measured on transverse sections of large and small airways from post mortem cases of fatal (n = 107) and nonfatal ...
متن کاملAirway basement membrane perimeter distensibility and airway smooth muscle area in asthma.
The perimeter of the basement membrane (Pbm) of an airway viewed in cross section is used as a marker of airway size because in normal lungs it is relatively constant, despite variations in airway smooth muscle (ASM) shortening and airway collapse. In vitro studies (McParland BE, Pare PD, Johnson PR, Armour CL, Black JL. J Appl Physiol 97: 556-563, 2004; Noble PB, Sharma A, McFawn PK, Mitchell ...
متن کاملTissue fibrocytes in patients with mild asthma: A possible link to thickness of reticular basement membrane?
BACKGROUND Myofibroblasts, proposed as being derived from circulating fibrocytes, are considered to be important cells in thickening of the basement membrane in patients with asthma. We have studied the correlation of tissue fibrocyte levels to basement membrane thickness and the presence of fibrocytes in bronchoalveolar lavage fluid (BALF) in steroid-naive patients with mild asthma and control...
متن کاملMast cells in COPD airways: relationship to bronchodilator responsiveness and angiogenesis.
We have investigated whether mast cells are associated with bronchodilator responsiveness and airway vascular changes in chronic obstructive pulmonary disease (COPD) airways. We have previously shown that the reticular basement membrane is hypervascular and the lamina propria is hypovascular in COPD. Bronchial biopsies from 32 COPD subjects, 15 smokers with normal lung function and 17 controls,...
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ژورنال
عنوان ژورنال: Thorax
سال: 2010
ISSN: 0040-6376
DOI: 10.1136/thx.2010.150896.4