Daily serum biochemical parameters detected during safety evaluation of daptomycin-modified daptomycin-loaded liposomes. Alanine aminotransferase (A), aspartate aminotransferase (B), urea nitrogen (C), creatinine phosphokinase (D), creatinine (E) and uric acid (F) levels from normal mice were detected on days −1, 0, 1, 3 and 7. Mice from saline group, DPD-L[D] group and mPEG-L[D] group were administrated a dose of saline, daptomycin-modified daptomycin-loaded liposomes (mPEG-L[D] 25 mg/kg in a single i.v. dose), and PEGylated liposomal daptomycin (mPEG-L[D], 25 mg/kg in a single i.v. dose) on day 0, respectively. Each data point represents the mean±SD, n=6.