GLRX2 and colon adenocarcinoma: The concentration of Grx2 in the serum of patients with colon adenocarcinoma (M = 3.06 ng/mL; Me = 2.49 ng/mL) was significantly higher than in the serum of healthy volunteers (M = 1.07 ng/mL; Me = 0.99 ng/mL) (p = 0.001) (Figure 7F).