title: Stochastic modeling in toxicokinetics. Application to the in vivo micronucleus assay.
abstract: A stochastic model for the in vivo micronucleus assay is presented. This model describes the kinetic of the rate of micronucleated polychromatic erythrocytes induced by the administration of a mutagenic compound. For this, biological assumptions are made both on the erythropoietic system and on the mechanisms of action of the compound. Its pharmacokinetic profile is also taken into account and it is linked to the induced toxicological effect. This model has been evaluated by analyzing the induction of micronuclei is mice bone marrow by a mutagenic compound, 6-mercaptopurine (6-mp). This analysis enabled to make interesting remarks about the induction of micronuclei by 6-mp and to put to light an unsuspected wavy kinetic by optimizing the experimental design of the in vivo micronucleus assay.
authors.affiliation: Agence Française de Sécurité Sanitaire des Aliments, Laboratoire d'Etudes et de Recherches sur les Médicaments Vétérinaires et les Désinfectants, BP 90203, 35302 Fougères cedex, France. o.hyrien@fougeres.afssa.fr
authors.forename: O
authors.initials: O
authors.lastname: Hyrien
authors.forename: V
authors.initials: V
authors.lastname: Klés
authors.forename: D
authors.initials: D
authors.lastname: Concordet
authors.forename: M
authors.initials: M
authors.lastname: Bonneu
authors.forename: M
authors.initials: M
authors.lastname: Laurentie
authors.forename: P
authors.initials: P
authors.lastname: Sanders
mesh_terms: D000818:Animals; D004920:Erythropoiesis / Q000187:drug effects; D007700:Kinetics; D008390:Markov Chains; D015122:Mercaptopurine / Q000493:pharmacokinetics / Q000633:toxicity; D051379:Mice; D015162:Micronucleus Tests; D008954:Models, Biological; D009153:Mutagens / Q000493:pharmacokinetics* / Q000633:toxicity*; D009716:Numerical Analysis, Computer-Assisted; D013269:Stochastic Processes
chemical_list: D009153:Mutagens; D015122:Mercaptopurine