Abstract
The aim of our study was to assess the effects of cigarette smoking on selected indices of immunity. The study comprised 116 men divided into three groups: 37 subjects smoking for not more than 10 yr, 39 subjects smoking for more than 10 yr, and control group consisting of 40 age-matched men who never used to smoke. The following parameters were studied: total number of lymphocytes, B-cells, T-cells subpopulations: (CD3+)T-, (CD4+)T-helper, (CD8+)T-cytotoxic and (CD16+)natural killer (NK)-cells and serum concentration of immunoglobulins A, D, G and M, C3c and C4 complement components, acute phase proteins: α 1-acid glycoprotein, haptoglobin, ceruloplasmin and lysozyme. The (CD4+)/(CD8+) ratio was also calculated. The suppressive effect of tobacco smoke on human immunity was seen as decreased serum concentration of immunoglobulins and lysozyme, especially in men smoking for more than 10 yr, decreased (CD16+)NK-cells absolute number and elevated population of (CD8+)T-cytotoxic lymphocytes entailing a decrease in CD4+/CD8+ ratio.
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