Analysis of fecal samples from 20 advanced HCC patients and healthy controls showed that the levels of genera such as Lactobacillus, Anaerostipes, Fusicatenibacter, Bifidobacterium, and Faecalibacterium were correlated with AFP, alanine aminotransferase (ALT), and aspartate aminotransferase (AST) levels [14]. The gene discussed is GPT; the disease is hepatocellular carcinoma.