EXPERIMENTAL STUDY OF TECA BIOARTIFICIAL LIVER SUPPORT SYSTEM IN TREATMENT OF ACUTE LIVER FAILURE CANINES / 解放军医学杂志

ABSTRACT

Abstract To analyse the mechanism of TECA bio-artificial liver support system(BALSS)to treat acute liver failure (ALF) canines. The blood of partial liver resection-induced ALF canines or RPMI1640 solution were circulated in the inner space of the hollow fibers (blood loop), and porcine hepatocytes were cultured in outer space of the hollow fibers (cell loop). The concentrations of lidocaine, albumine and urine in the RPMI1640 solution were measured. The compositions of proteins in cell loop and blood loop were analysed by polyacrylamide gel electrophoresis (PAGE). The ultrastructure of porcine hepatocytes in BALSS was observed with transmission electronic microscopy. There were not any proteins in RPMI1640 solution before BALSS circulation. After 6 hours of the BALSS circulation, the concentration of lidocaine in RPMI1640 solution decreased significantly,and concentration of albumine and urine nitrogen increased gradually. The ultrastructure of the porcine hepatocyte shown damaged after BALSS 6h. The results suggested that TECA BALSS could replace temporarily the functions of failure liver by the effects of biologic transform and synthesis of porcine hepatocytes.