GPX4 and inflammatory bowel disease (infantile ulcerative colitis) 31, autosomal recessive: Next, we orally challenged 8-week old WT and Gpx4+/−IEC mice with AA once daily for five consecutive days complementary to the standard chow diet in addition to iron supplementation with ferric maltol (Fig. 5c), which is approved for treatment of iron-deficiency anemia in IBD31.