title: Correlation between in-vitro microsomal enzyme activity and whole organ hepatic elimination kinetics: analysis with a dispersion model.
abstract: A new model, the dispersion model of hepatic elimination, is applied to the correlation between in-vitro microsomal data and corresponding rat isolated perfused liver data for a number of drugs reported in the literature, whose extraction ratio varies over the range of 0.01 to 0.995. The dispersion model described the data better than either the 'well-stirred' model or the 'parallel-tube' model, two other widely used models of hepatic elimination. The experimental data support the concept that elimination of solutes is affected by is a considerable dispersion on passage through the liver.
authors.forename: M S
authors.initials: MS
authors.lastname: Roberts
authors.forename: M
authors.initials: M
authors.lastname: Rowland
mesh_terms: D000818:Animals; D066298:In Vitro Techniques; D007700:Kinetics; D008099:Liver / Q000378:metabolism*; D008657:Metabolic Clearance Rate; D008862:Microsomes, Liver / Q000201:enzymology*; D008954:Models, Biological; D010477:Perfusion; D051381:Rats