PT - JOURNAL ARTICLE AU - E M Soulinna AU - A M Winberg TI - 7-Ethoxycoumarin O-deethylation and methylumbelliferone conjugation in isolated fetal and adult bovine hepatocytes. DP - 1985 Nov 01 TA - Drug Metabolism and Disposition PG - 722--724 VI - 13 IP - 6 4099 - http://dmd.aspetjournals.org/content/13/6/722.short 4100 - http://dmd.aspetjournals.org/content/13/6/722.full SO - Drug Metab Dispos1985 Nov 01; 13 AB - Hepatocytes were isolated from fetal and adult bovine liver by perfusion of a piece of liver. The yield was 0.3-4.5 and 5.8-44.7 x 10(6) cells/g for adult and fetal liver, respectively. The viability was between 60 and 90%. 7-Ethoxycoumarin O-deethylase activity in adult hepatocytes was about 10 times higher than in fetal hepatocytes. The same was true for the glucuronidation of methylumbelliferone, but sulfate conjugation was fully developed already in fetal cells. The results show that the use of isolated cells can be extended to larger species, which is of value in interspecies studies as well as in finding models for humans.