
Keywords: CEP; cartilage endplate; FBS; fetal bovine serum; IVD; intervertebral disc; LBP; low back pain; Aparf-1; apoptotic protease activating factor-1; PBS; phosphate buffered saline; DAPI; 4â²,6-diamidino-2-phenylindole; FITC; fluorescein isothiocyanate; PI; p