BTK and Sepsis: However, at 8, 12, and 24 h, the expression levels of p-BTK in the burn +sepsis+ LFM-A13 group were significantly decreased relative to those in the burn + sepsis group (P < 0.05), indicating that LFM-A13 had a significant inhibitory effect on the activation and expression of BTK in the intestinal tissues of burn sepsis mice.