IFABP measurement in serum and urine has shown promising results in the context of intestinal ischemic injury in animal models and humans alike [123,124,125] and was significantly elevated in subjects with T2D [109], contributing to a permeability risk score used by the authors to describe elevated intestinal permeability in their T2D subgroup. The gene discussed is FABP2; the disease is type 2 diabetes mellitus.