LBP and bacterial infectious disease: C6 is part of the complement system that is known for its involvement in inflammation and immunity against pathogens; C6 can help form a membrane attacking complex of the complement system that binds to the surface of bacterial cells and lyse them, while LBP helps protect against bacterial infections by facilitating acute-phase immunologic response (Nangaku et al., 1999; Schroedl et al., 2001; Ngure et al., 2009; Ricklin et al., 2010).