Comparative decorporation efficacy of 3,4,3-LIHOPO, 4,4,4-LIHOPO and DTPA after contamination of rats with soluble forms of 238Pu and 233U.
Radiat Prot Dosimetry
; 105(1-4): 535-8, 2003.
Article
em En
| MEDLINE
| ID: mdl-14527023
ABSTRACT
The aim of this study was to compare the efficacies of DTPA, 3,4,3-LIHOPO and a newly synthesised molecule, 4,4,4-LIHOPO, in removing 233U and 238Pu after internal contamination by soluble forms of those nuclides. For this purpose, intravenous injections of DTPA (30 micromol kg(-1)) or 3,4,3-LIHOPO or 4,4,4-LIHOPO at dosages of 0.3 or 30 micromol kg(-1) were performed 1, 6 and 24 h after contamination of rats by intravenously injected 238Pu citrate and 1 h after intravenous injection of 233U nitrate. Actinide content in the main retention organs and cumulated excretion were measured 48 h after contamination. These experiments show similar decorporation efficacies of 4,4,4-LIHOPO and 3,4,3-LIHOPO for Pu, which are much higher than that of DTPA. At a dosage of 0.3 micromol kg(-1), the two LIHOPO analogues were as efficient as DTPA at a dosage of 30 micromol kg(-1). After U contamination, a 20% decorporation efficacy was obtained for either 3,4,3-LIHOPO or 4,4,4-LIHOPO at a dosage of 30 micromol kg(-1).
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Piridonas
/
Lesões por Radiação
/
Compostos Aza
/
Terapia por Quelação
/
Descontaminação
/
Plutônio
/
Urânio
/
Ácido Pentético
Tipo de estudo:
Etiology_studies
/
Evaluation_studies
Limite:
Animals
Idioma:
En
Revista:
Radiat Prot Dosimetry
Ano de publicação:
2003
Tipo de documento:
Article