Association between the polymorphism of three genes involved in the methylation and efflux of arsenic (As3MT, MRP1, and P‐gp) with lung cancer in a Mexican cohort

Lung cancer is the most common neoplasm and the primary cause‐related mortality in developed and in most of nondeveloped countries. Epidemiological studies have demonstrated that even at low arsenic doses, the lungs are one of the main target organs and that chronic arsenic exposure has been associated with an increase in lung cancer development. Among the risk factors for cancer, arsenic methylation efficiency (As3MT) and the clearance of...