Objective To probe whether the preinduced adult animal hepatocytes (AHH) by phenobarbital sodium (PBS) in vivo could boost the metabolic activity of bilirubin in vitro for seeking the optimal biomaterial for the extracorporeal bioartificial liver support system (EBLSS). Methods Twelve adult male rats with 34g mean weight were randomly divided into preinduce group and control group, the rats of the preinduce group were intraperitoneal injected daily with 45mg/kg PBS for 5 days, while the control group with normal sodium. 0.5g wet weight liver was taken from every rat after 24 hours of last administer, the suspensions were made by mixing six wet weight livers in two groups and put in the cultivate board of 96 apertures, 30ul per aperture, then 50?l jaundice serum and 20?l culture fluid were added into every aperture, which were statically cultured in the incubaton of humidity 95% at 37℃, 5% CO2 for 3 hours, and then revolved, the metabolic activity of bilirubins were determined by Beckmann auto-analyzer. Results The total bilirubins and indirect bilirubins fell 60%, 71.42% respectively in the preinduced group, and 34.78%, 54.87% in the control group (P0.05, t=1.571). There were no obvious changes in direct bilirubins in two groups. Conclusions The preinduced AHH by PBS in vivo can boost the metabolic activity of bilirubin in vitro, it may be the optimal biomaterial for EBLSS.

Objective To investigate the biological characteritics of adult animal hepatocytes induced by phenobarbital sodium(PBS) in vivo,and to study the potential value of biological artificial liver of effective hepatocytes.Methods 12 adult male mice,are yandomly divided in to preinducing group and controll group.The preinducing group are intraperitoneally injected PBS per day,45mg/kg for 7 times in total;the controll ware injected NS.after that,we detected the blood serum TP,BUN,CHOL,HDLC.And the same amount of isolative hepatocytes was developed after being developed 48h;MTT was used to investigate the proliferation of hepatocytes after being developed 24h;chromosome was investigated to observe the cell division;and the survival deadline and morphology was also investigated.Results The TP had remarkable difference between the two groups(t=2.678,P