families are involved in a 2-stage detoxification process of a wide range of environmental
toxins and carcinogens. In order to investigate whether there is a genetic association of the
biotransformation enzymes and idiopathic male fertility, we studied GSTT1, GSTM1, and
CYP1A1* 2 A polymorphisms in 150 infertile men and 200 healthy men as controls from
Northern Iran. Genotyping of the GSTT1 and GSTM1 genes were performed using the …