GSTO1 and inflammatory bowel disease: The highest levels of nuclear GSTO1 localization is obtained in IBD (45.28 ± 3.42%) and CRC (39.78 ± 4.75%) samples that are significantly higher than those found in healthy biopsies (15.62 ± 5.07%, P < 0.001) and polyps (23.62 ± 3.11%, P < 0.01) (Figure 2B).