We collected peripheral blood samples from 90 patients diagnosed with pterygium and from 23 subjects with-out the disease in order to perform molecular analysis of the GSTM1 gene.
Therefore, BPDE-like DNA adducts and CYP1A1 and GSTM1 polymorphisms were detected in this study to provide more molecular evidence to understand the cause of BPDE-like DNA adduct formation in pterygium.