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Evaluation of [201Tl](III) Vancomycin in normal rats
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Abstract
MATERIAL AND METHODS: [201Tl](III)VAN was prepared according to the optimized conditions followed by biodistribution studies in normal rats for up to 52 h. The Staphylococcus aurous specific binding was checked in vitro. The complex was finally injected to normal rats. Tracer SPECT images were obtained in normal animals and compared to those of 67Ga-citrate.
RESULTS: Freshly-prepared [201Tl](III)VAN batches (radiochemical yield > 99%, radiochemical purity > 98%, specific activity ≈ 1.2 Ci/mmol) showed a similar biodistribution to that of unlabeled vancomycin. The microorganism binding ratios were 3 and 9 for tracer 201Tl3+ and tracer 201Tl(III)DTPA, respectively, suggesting the preservation of the tracer bioactivity. As a nonspecific cell penetrating tracer, [201Tl](III)DTPA was used.
Abstract
MATERIAL AND METHODS: [201Tl](III)VAN was prepared according to the optimized conditions followed by biodistribution studies in normal rats for up to 52 h. The Staphylococcus aurous specific binding was checked in vitro. The complex was finally injected to normal rats. Tracer SPECT images were obtained in normal animals and compared to those of 67Ga-citrate.
RESULTS: Freshly-prepared [201Tl](III)VAN batches (radiochemical yield > 99%, radiochemical purity > 98%, specific activity ≈ 1.2 Ci/mmol) showed a similar biodistribution to that of unlabeled vancomycin. The microorganism binding ratios were 3 and 9 for tracer 201Tl3+ and tracer 201Tl(III)DTPA, respectively, suggesting the preservation of the tracer bioactivity. As a nonspecific cell penetrating tracer, [201Tl](III)DTPA was used.
Keywords
Tl-201; vancomycin; SPECT; biodistribution; Staphylococcus aureus; binding study
Title
Evaluation of [201Tl](III) Vancomycin in normal rats
Journal
Issue
Pages
1-4
Published online
2008-01-15
Page views
703
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1239
Bibliographic record
Nucl. Med. Rev 2008;11(1):1-4.
Keywords
Tl-201
vancomycin
SPECT
biodistribution
Staphylococcus aureus
binding study
Authors
Amir Reza Jalilian
Mohammad Amin Hosseini
Abbas Majdabadi
Fariba Saddadi