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Predicate | Object |
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rdf:type | |
lifeskim:mentions | |
pubmed:issue |
6
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pubmed:dateCreated |
1989-8-3
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pubmed:abstractText |
Labeling of plasma transferrin with gallium was investigated to determine whether the gallium-transferrin complex could be effectively used as a macromolecular tracer in studies of capillary permeability using Positron Emission Tomography (PET). Three gallium-plasma preparations were tested and 2 h biodistribution studies were performed in rats. The three preparations gave similar blood clearance and tissue distribution data, but the methods used for evaluating gallium-transferrin binding were found to be suboptimal. Gallium clearance from blood was biexpoential with both components faster than that of 125I-albumin. Gallium distribution spaces in all tissues including intracerebral Walker-256 tumors were larger than those of albumin. These results indicate a relative instability of the gallium-transferrin complex in vivo, which appears to preclude its use as an acceptable radiolabeled protein for vascular permeability studies using PET.
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pubmed:language |
eng
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pubmed:journal | |
pubmed:citationSubset |
IM
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pubmed:chemical | |
pubmed:status |
MEDLINE
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pubmed:issn |
0883-2897
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pubmed:author | |
pubmed:issnType |
Print
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pubmed:volume |
15
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pubmed:owner |
NLM
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pubmed:authorsComplete |
Y
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pubmed:pagination |
665-72
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pubmed:dateRevised |
2011-11-17
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pubmed:meshHeading |
pubmed-meshheading:3266964-Animals,
pubmed-meshheading:3266964-Brain Neoplasms,
pubmed-meshheading:3266964-Capillary Permeability,
pubmed-meshheading:3266964-Carcinoma 256, Walker,
pubmed-meshheading:3266964-Citrates,
pubmed-meshheading:3266964-Citric Acid,
pubmed-meshheading:3266964-Neoplasm Transplantation,
pubmed-meshheading:3266964-Rats,
pubmed-meshheading:3266964-Rats, Inbred Strains,
pubmed-meshheading:3266964-Serum Albumin, Radio-Iodinated,
pubmed-meshheading:3266964-Tissue Distribution,
pubmed-meshheading:3266964-Tomography, Emission-Computed,
pubmed-meshheading:3266964-Transferrin
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pubmed:year |
1988
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pubmed:articleTitle |
Gallium-transferrin as a macromolecular tracer of vascular permeability.
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pubmed:affiliation |
Department of Nuclear Medicine, N.I.H., Bethesda, MD 20892.
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pubmed:publicationType |
Journal Article,
Comparative Study
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