title: Pharmacokinetics of recombinant human basic fibroblast growth factor in mice using a radioiodination method combined with SDS-PAGE and a sandwich enzyme-linked immunosorbent assay.
abstract: Pharmacokinetics of recombinant human basic fibroblast growth factor (rhbFGF) in mice were studied by using a radioiodination method combined with sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE) and a sandwich enzyme-Linked immunosorbent assay (ELISA). RhbFGF concentration in serum were dertermined after iv administration of 2.5, 5 and 10 microg/kg of 125I-rhbFGF or rhbFGF. The AUCs were linearly correlated to doses. Concentrations in tissues, recoveries of 125I-rhbFGF in urine and feces were also analyzed following iv dose of 5 microg/kg. Pharmacokinetic profiles of radiolabelled and unlabelled rhbFGF were consistent in trend but exit certain differences. Mice cleared unlabeled rhbFGF markedly faster than their radiolabeled counterparts.
authors.affiliation: Center of Drug Metabolism and Pharmacokinetics, China Pharmaceutical University, Nanjing, People's Republic of China.
authors.forename: Q
authors.initials: Q
authors.lastname: Zhang
authors.forename: G J
authors.initials: GJ
authors.lastname: Wang
authors.forename: J G
authors.initials: JG
authors.lastname: Sun
mesh_terms: D000818:Animals; D041702:BALB 3T3 Cells; D004305:Dose-Response Relationship, Drug; D004591:Electrophoresis, Polyacrylamide Gel / Q000379:methods*; D004797:Enzyme-Linked Immunosorbent Assay / Q000379:methods; D005260:Female; D016222:Fibroblast Growth Factor 2 / Q000032:analysis / Q000493:pharmacokinetics*; D007457:Iodine Radioisotopes / Q000032:analysis / Q000493:pharmacokinetics*; D008297:Male; D051379:Mice; D011994:Recombinant Proteins / Q000032:analysis / Q000493:pharmacokinetics*
chemical_list: D007457:Iodine Radioisotopes; C100666:KCB-1 protein, recombinant; D011994:Recombinant Proteins; D016222:Fibroblast Growth Factor 2