FETUB and metabolic dysfunction-associated steatotic liver disease: Nevertheless, the abundances of fetuin B (FETUB; l2fc 2.39, p = 0.0497), a hepatokine increased in patients with liver steatosis [55], of retinol binding protein 4 (RBP4; l2fc 0.73, p = 0.0038) that stimulates hepatic lipogenesis [56], and of several mitochondrial proteins (see below), which DAVID functional annotation clustering links to NAFLD, were significantly increased in the GHR-KO liver samples.