SPSB1 and Sepsis: Besides the atrophy markers Trim63/MuRF1, Fbxo32/Atrogin‐1, and Fbxo30/MuSA1 (all induced >5‐fold by sepsis, P < 0.001) the expression of Spsb1 was significantly increased after 24 and 96 h of sepsis (24 h: 20‐fold; 96 h: 34‐fold, P < 0.001).