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Local immunity in patients with chronic bronchitis and the effects of a bacterial extract, Broncho-Vaxom, on T lymphocytes, macrophages, gamma-interferon and secretory immunoglobulin A in bronchoalveolar lavage fluid and other variables



Local immunity in patients with chronic bronchitis and the effects of a bacterial extract, Broncho-Vaxom, on T lymphocytes, macrophages, gamma-interferon and secretory immunoglobulin A in bronchoalveolar lavage fluid and other variables



Respiration 57(2): 90-99



In 28 adult patients with nonobstructive chronic bronchitis we investigated componnets of the immune system of the lower airways and the effects of treatment of Broncho-Vaxon (BV). An analysis of the washing from bronchoalveolar lavage (BAL) showed, in comparison with healthy controls, an elevation of total cell count (p = 0.003) as well as the IgA/albumin values (p = 0.02) and a reduction of the macrophage activity (p < 0.001) in patients with chronic bronchitis. After BV a reduction in the total cell count (p = 0.05), an increase in the helper/suppressor T lymphocyte ratio (due mainly to the reduction in the suppressor cells; p = 0.04), a modulation of the IgA/albumin ratio, a stimulation of the impaired alveolar macrophage activity (p = 0.03) and increased concentrations of .gamma.-interferon (p = 0.03) were found in the BAL fluid of patients with chronic bronchitis. The salivary IgA/albumin ratio remained unchanged, the serum IgE concentration fell (p = 0.02) and the urinary IgA concentration rose (p = 0.002). Bronchial mucosa lesions, evaluated endoscopically in terms of structural damage, hyperemia and mucus production, were improved (p < 0.01). These findings indicate that orally administered BV modulates disordered local and systemic immune functions in patients with chronic bronchitis.

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Accession: 007517848

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PMID: 2122507


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Local Immunity in Patients with Chronic Bronchitis and the Effects of a Bacterial Extract, Broncho-Vaxom®, on T Lymphocytes, Macrophages, Gamma-Interferon and Secretory Immunoglobulin A in Bronchoalveolar Lavage Fluid and Other Variables. Respiration 57(2): 90-99, 1990

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