CREB1 and Sepsis: Post hoc comparisons showed that sepsis significantly decreased the expressions of pCREB, CREB, and the ratio of mBDNF/proBDNF at 24 h (all p < 0.05) and 16 days (all p < 0.001) following CLP, which were significantly reversed by clenbuterol treatment both at 24 h (all p < 0.05) and 16 days (all p < 0.001) following CLP.