Inhaled Corticosteroid Treatment for Asthma
Increased numbers of goblet cells associated with decrease in the ciliated epithelium occur at an early stage in the patient with asthma. Recent bronchial biopsy studies have demonstrated that these changes may occur even in the mildest asthmatic patient. The protective function of the epithelium is thus compromised and secretion enhanced in early asthma. Anti-inflammatory therapy should be employed at an early stage in the asthmatic patient. Avoidance of allergen is also essential if the source of the inflammation is atopic disease. Inhaled corticosteroids not only reduce bronchial hyperresponsitivity, but also improve the diurnal variation that occurs in lung function in the asthmatic patient. Inhaled corticosteroid therapy is associated with the normalization of the ciliated to goblet cell ratio and a reduction in the inflammatory cell infiltrate, including most notably a reduction in eosinophil within the lamina propria and respiratory epithelium. These changes induced by inhaled corticosteroids are not noted when inhaled 2-agonists are employed alone as therapy for asthma. The use of inhaled corticosteroids may thus potentially reverse the pathologic changes that occur even in the early asthmatic patient, whereas utilization of inhaled 2-agonists failed to improve histologic abnormalities that occur in early asthma.
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Document Type: Research Article
Publication date: 1995-03-01
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- Allergy and Asthma Proceedings is a peer reviewed publication dedicated to distributing timely scientific research regarding advancements in the knowledge and practice of allergy, asthma and immunology. Its primary readership consists of allergists and pulmonologists.
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