evaluated liver fibrosis improvement in 100 patients scheduled for laparoscopic sleeve gastrectomy or RYGB, with transient hepatic elastography and BARD score (BMI, aspartate aminotransferase (AST), alanine aminotransferase (ALT), and DM); one year after BS, liver stiffness showed a significant improvement (12.9 ± 10.4 vs. 7.1 ± 3.7 kPa, p <0.001) as well as in BARD score (2.3 ± 1.2 vs. 2.8 ± 1.1, p = 0.008); however, a BARD score above 2 points represents a high risk for advanced fibrosis (43). This evidence concerns the gene GPT and Hepatic fibrosis.