[166Dy]Dysporium/[166Ho]Holmium In Vivo generator

Autor: Nadine Di Bartolo, Saed Mirzadeh, Furn F. Knapp, Suzanne V. Smith, R. M. Lambrecht, E L Hetherington
Rok vydání: 1995
Předmět:
Zdroj: Applied Radiation and Isotopes. 46:759-764
ISSN: 0969-8043
DOI: 10.1016/0969-8043(94)00149-t
Popis: A novel approach for the delivery of 166Ho (t1/2 = 26.6 h) to tissue is via the in vivo decay of its 81.5 h parent, 166Dy-an in vivo generator system. A critical question for the in vivo 166Dy/166Ho generator system is whether translocation of the daughter nucleus occurs. The in vitro and in vivo integrity of the [166Dy]Dy/166Ho-DTPA complex was investigated and results indicated that no translocation of the daughter nucleus occurs subsequent to beta- decay of 166Dy. Biodistribution studies of [166Dy]Dy-DTPA showed that the ratio of 166Dy/166Ho in bone remains constant (+/- 7%) over a 20 h period, indicating no significant in vivo loss of 166Ho from the complex. Increasing the in vivo residence time of [166Dy]Dy-DTPA complex attached to HSA gave similar results.
Databáze: OpenAIRE