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ID 31578
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Author
Mifune, Takashi
Tanizaki, Yoshiro
Kitani, Hikaru
Okazaki, Morihiro
Kajimoto, Kazuhiro
Kimura, Ikuro
Abstract

The effects of long-term glucocorticoid therapy on chemical mediator and cellular reaction in the airways were examined in 69 patients with bronchial asthma. The histamine release induced by Ca ionophore A23187 from cells in the bronchoalveolar lavage (BAL) fluid of atopic asthmatics was significantly lower in the subgroup with steroid-dependent intractable asthma (SDIA) than in non-SDIA patients (p < 0.05). In contrast, histamine release in nonatopic SDIA patients did not differ from nonatopic non-SDIA patients. The release of leukotriene C4 (LTC4) was significantly lower in atopic patients with SDIA (p < 0.02). However, there was no significant difference in LTC4 release between nonatopic patients with SDIA and without SDIA. The proportion of BAL lymphocytes was significantly lower in atopic patients with SDIA than in those without it (p < 0.05), although there was no significant difference between the nonatopic patients with and without SDIA. These results show that glucocorticoids affect humoral and cellular events in the airways of atopic asthmatics more than in those of nonatopic asthmatics.

Keywords
histamine
leukotrienes
BAL cells
intractable asthma
glucocorticoids
Amo Type
Article
Published Date
1993-10
Publication Title
Acta Medica Okayama
Volume
volume47
Issue
issue5
Publisher
Okayama University Medical School
Start Page
323
End Page
328
ISSN
0386-300X
NCID
AA00508441
Content Type
Journal Article
language
英語
File Version
publisher
Refereed
True
PubMed ID
Web of Sience KeyUT