title: Carbon monoxide disposition in the perfused rat liver.
abstract: A simple method for determining carbon monoxide (CO) disposition in the rat liver perfused with erythrocyte-free buffer was developed. Wash-in experiments were performed with buffer containing tracer quantities of [14C]sucrose and 3H2O and equilibrated with CO. Outflow samples were collected into tubes containing human erythrocytes, which avidly bind CO. Outflow curves were analyzed using compartmental models. Fractional recovery of CO was 1.07 +/- 0. 17, and the apparent volume of distribution was 1.37 +/- 0.30 ml/g of liver (n = 8). A flow-limited model fitted the data most effectively, although estimates of the permeability-to-surface area product were attempted using a barrier-limited model. This technique will facilitate investigation of the effects of disease on gaseous substrate disposition in perfused organs.
authors.affiliation: Canberra Clinical School of the Sydney University, The Canberra Hospital, Garran, Australian Capital Territory 2605, Australia.
authors.forename: D G
authors.initials: DG
authors.lastname: le Couteur
authors.forename: Z L
authors.initials: ZL
authors.lastname: Yin
authors.forename: L P
authors.initials: LP
authors.lastname: Rivory
authors.forename: A J
authors.initials: AJ
authors.lastname: McLean
mesh_terms: D000818:Animals; D002248:Carbon Monoxide / Q000097:blood / Q000378:metabolism*; D004912:Erythrocytes / Q000378:metabolism; D006801:Humans; D008099:Liver / Q000378:metabolism*; D008297:Male; D008954:Models, Biological; D010477:Perfusion; D051381:Rats; D017208:Rats, Wistar
chemical_list: D002248:Carbon Monoxide