GPT and infection: In this study, AST, ALT, and LDH levels in sera in the probiotic-treated groups, including L. lactis/pTX8048-Fiber2-CWA, L. lactis/pTX8048-DCpep-Fiber2-CWA, E. faecalis/pTX8048-Fiber2-CWA, and E. faecalis/pTX8048-DCpep-Fiber2-CWA, were significantly lower than in the infection control group, which suggested that probiotics surface-expressing Fiber2 protein can alleviate the liver injury to some extent.