title: Pharmacokinetics and tissue distribution of 99mTc-labelled enoxaparin in the rat: evaluation of dosimetry parameters.
abstract: A low molecular weight heparin, enoxaparin, was labelled with 99mTc and the characteristics of the labelled compound determined. In vitro the stability, and labelling efficiency (98%) of the labelled drug were excellent. Rats were injected with 99mTc-enoxaparin to study pharmacokinetics and distribution. The results were used to calculate dosimetric estimates which are a prerequisite for pharmacokinetic studies on labelled LMWH (low molecular weight heparin) in human subjects. Biodistribution studies showed preferential liver and spleen accumulation. But the doses absorbed by these target organs remained below the upper limits of the dose received by a patient undergoing hepatic scintigraphy.
authors.affiliation: Laboratoire de Biophysique, Faculté Xavier Bichat, Paris, France.
authors.forename: N
authors.initials: N
authors.lastname: Colas Linhart
authors.forename: M D
authors.initials: MD
authors.lastname: Laforest
authors.forename: F
authors.initials: F
authors.lastname: Guiraud-Vitaux
authors.forename: I
authors.initials: I
authors.lastname: Gardin
authors.forename: A
authors.initials: A
authors.lastname: Petiet
authors.forename: J L
authors.initials: JL
authors.lastname: Berthelot
authors.forename: B
authors.initials: B
authors.lastname: Bok
mesh_terms: D000818:Animals; D004334:Drug Administration Schedule; D006495:Heparin, Low-Molecular-Weight / Q000008:administration & dosage / Q000493:pharmacokinetics*; D008099:Liver / Q000378:metabolism; D008297:Male; D011829:Radiation Dosage; D051381:Rats; D011919:Rats, Inbred Strains; D013154:Spleen / Q000378:metabolism; D013667:Technetium; D014018:Tissue Distribution
chemical_list: D006495:Heparin, Low-Molecular-Weight; D013667:Technetium