These novel findings are complemented by the demonstration of reduced GPx1 in the colon of mice with DSS-induced colitis [41, 42], murine colitis induced by knockout of GPx1 and GPx2 [43], and genome-wide association studies that note polymorphisms in antioxidant genes, including GPxs in IBD [44, 45]. This evidence concerns the gene GPX1 and inflammatory bowel disease.