No Association Between Genetic Polymorphisms of CYP1A1, GSTM1, GSTT1, GSTP1, NAT2, and Nasopharyngeal Carcinoma in Taiwan

NPC[2][1] is rare in most populations around the world but common in southern China and Southeast Asia. Both genetic and environmental factors are purported to account for the development of NPC. Many Phase I and Phase II enzymes get involved in the metabolism of carcinogens. Some of these enzymes