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Thulium 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetrakis(methylene phosphonate) as a 23Na shift reagent for the in vivo rat liver

Identifieur interne : 003766 ( Main/Merge ); précédent : 003765; suivant : 003767

Thulium 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetrakis(methylene phosphonate) as a 23Na shift reagent for the in vivo rat liver

Auteurs : N. Bansal [États-Unis] ; M. J. Germann [États-Unis] ; V. Seshan [États-Unis] ; G. T. Iii Shires ; C. R. Malloy [États-Unis] ; A. D. Sherry [États-Unis]

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RBID : Pascal:93-0581015

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Abstract

The use of thulium 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetrakis(methylene phosphonate (TmDOTP5-) as an in vivo 23Na NMR shift reagent for rat liver was evaluated by collecting interleaved 23Na and 31P spectra. Infusion of 80 mM TmDOTP5- without added Ca2+ produced baseline-resolved peaks from intra- and extracellular sodium without producing any changes in phosphate metabolite resonances or intracellular pH. Several key physiological parameters measured in parallel groups of animals confirmed that liver physiology is largely unaffected by this shift reagent

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Pascal:93-0581015

Le document en format XML

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<title xml:lang="en" level="a">Thulium 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetrakis(methylene phosphonate) as a
<sup>23</sup>
Na shift reagent for the in vivo rat liver</title>
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<div type="abstract" xml:lang="en">The use of thulium 1,4,7,10-tetraazacyclododecane-1,4,7,10-tetrakis(methylene phosphonate (TmDOTP
<sup>5-</sup>
) as an in vivo
<sup>23</sup>
Na NMR shift reagent for rat liver was evaluated by collecting interleaved
<sup>23</sup>
Na and
<sup>31</sup>
P spectra. Infusion of 80 mM TmDOTP
<sup>5-</sup>
without added Ca
<sup>2+</sup>
produced baseline-resolved peaks from intra- and extracellular sodium without producing any changes in phosphate metabolite resonances or intracellular pH. Several key physiological parameters measured in parallel groups of animals confirmed that liver physiology is largely unaffected by this shift reagent</div>
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