[Effect of tobacco smoking on various immunologic indicators]

The study conducted in 85 clinically healthy males--cigarette smokers--demonstrated a decrease of the total number of T lymphocytes related to smoking duration. There was no effect on the number of B cells while the number of non-B non-T lymphocytes increased. Smokers demonstrated decreased levels of serum IgA, IgG and IgM levels. The authors discuss these findings in relation to other controversial studies.