alexa Comparison of 225actinium chelates: tissue distribution and radiotoxicity. or =185 kBq 225Ac-CHX-DTPA suffered 100\% morbidity by 5 days and 100\% mortality by 8 days postinjection, and all animals evaluated had significant organ damage. The in vivo instability of the 225Ac-CHX-DTPA complex likely allowed accumulation of free 225Ac in organs, which resulted in tissue pathology."/>
Social & Political Sciences

Social & Political Sciences

Anthropology

Author(s): Davis IA, Glowienka KA, Boll RA, Deal KA, Brechbiel MW,

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Abstract The biodistribution and tissue toxicity of intravenously administered 225-actinium (225Ac) complexed with acetate, ethylene diamine tetraacetic acid (EDTA), 1, 4, 7, 10, 13-pentaazacyclopentadecane-N, N', N", N"', N""-pentaacetic acid (PEPA), or the "a" isomer of cyclohexyl diethylenetriamine pentaacetic acid (CHX-DTPA), were examined. The percent of injected dose per organ and per gram of tissue for each chelate complex was determined. 225Ac-CHX-DTPA was evaluated further for radiotoxic effects. Mice receiving > or =185 kBq 225Ac-CHX-DTPA suffered 100\% morbidity by 5 days and 100\% mortality by 8 days postinjection, and all animals evaluated had significant organ damage. The in vivo instability of the 225Ac-CHX-DTPA complex likely allowed accumulation of free 225Ac in organs, which resulted in tissue pathology.
This article was published in Nucl Med Biol and referenced in Anthropology

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