Effects of low concentrations of benzene exposure on levels of platelet-associated antibodies and platelet parameters.

Abstract

To evaluate the impact of exposure to low concentrations of benzene on the platelet-associated antibodies and platelet parameters. We carried out an analysis on 121 benzene-exposed workers and 110 healthy workers whose blood samples were collected and the levels of platelet-associated antibodies and platelet parameters were assessed. Benzene emissions were monitored over 5 years. Large-platelet cell ratios (P-LCR), platelet distribution width (PDW), and mean platelet volume (MPV) were significantly higher in benzene-exposed participants than in control participants. In participants who smoke cigarettes or drank alcohol, P-LCR, PDW, and MPV were more significantly elevated in the benzene-exposed group than in nonsmokers and nondrinkers. Platelet-associated immunoglobulin (PAIg) levels in benzene-exposed participants were higher than those in the control group, and PAIgA and PAIgM levels correlated with cumulative benzene exposure. Exposure to low concentrations of benzene can induce changes in PAIg levels and platelet parameters.