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  • Title: Circulating ICAM-1 levels in bronchial asthma and the effect of inhaled corticosteroids.
    Author: Cengizlier R, Demirpolat E, Tülek N, Cakmak F.
    Journal: Ann Allergy Asthma Immunol; 2000 May; 84(5):539-41. PubMed ID: 10831009.
    Abstract:
    BACKGROUND: Even mild asthma has an inflammatory component. Intercellular adhesion molecule-1 (ICAM-1) plays an important role in inflammation. Higher levels of circulating ICAM-1 (cICAM-1) in sera may reflect the upregulation of ICAM-1 expression in allergic inflammation. OBJECTIVE: The aim of this study was to assess cICAM-1 levels in children with atopic bronchial asthma and to determine the effects of inhaled glucocorticoids on cICAM-1 levels. METHODS: The study group consisted of 25 children with moderate atopic bronchial asthma with a mean age of 9.9 +/- 4.2 years, and the control group consisted of 18 healthy children with a mean age of 9.6 +/- 2.6 years. Serum cICAM-1 levels and pulmonary function tests were measured. The patients were treated 2 months with inhaled budesonide 400 to 800 microg (mean 440 microg) per day. After this treatment, cICAM-1 levels and pulmonary function tests were compared with pretreatment levels. The pretreatment cICAM-1 values were compared with healthy control group. RESULTS: The initial cICAM-1 levels of the patient group were significantly higher than the cICAM-1 levels of the control group (P = .001). The post-treatment cICAM-1 levels of the patient group were significantly lower than the pretreatment values (P = .007). Pulmonary function test results (FEV1, FEF25-75, and PEFR) rose significantly with the treatment in patients (P < .05). CONCLUSION: This study revealed the presence of inflammation in children with even moderate atopic asthma as reflected with elevated levels of cICAM-1 levels, which decreased following corticosteroid treatment as a result of decreased inflammation.
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