MAGEA1 and hematologic disorder: Recently, Bollati et al. (2007) showed that low-dose exposure to airborne benzene is associated with alterations in DNA methylation in blood DNA of healthy individuals and that the alterations resemble those found in hematological malignancies including hypomethylation of LINE-1 and Alu repetitive elements, hypermethylation of the p15 tumor suppressor gene, and hypomethylation of melanoma-associated antigen 1 gene (MAGEA1).