HSPA5 and Sepsis: This study aimed to examine the protective role of nebivolol (NEB) on liver tissue against the lipopolysaccharide (LPS)-induced sepsis model in rats by targeting endoplasmic reticulum (ER) stress–related binding immunoglobulin protein (Bip), CCAAT-enhancer-binding protein homologous protein (Chop) signaling pathways.