[Synergistic effect of organic solvents and tobacco smoke on the indicators of humoral immunity in humans].

Medical examinations were performed among 49 non-smokers, 47 workers who had been smoking for more than 10 years, 19 non-smokers exposed to organic solvents and 41 smoking persons occupationally exposed to organic solvents. Both cigarette smoking and the action of organic solvents. decreased the levels of IgA, AgG, IgM and that of lysozyme. In persons exposed to the actions of both cigarette smoking and benzol and its homologues, more significant decreases of IgA, AgG, IgM and lysozyme concentrations were revealed as compared to those affected by one of the factors. The same concerned the IgD level. The contributors proposed that cigarette smoking should be taken into account when evaluating the immunotoxic properties of industrial factors.