Serveur d'exploration sur le thulium

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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 : 003479 ( Main/Exploration ); précédent : 003478; suivant : 003480

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]

Source :

RBID : Pascal:93-0581015

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English descriptors

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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<sup>23</sup>
Na shift reagent for the in vivo rat liver</title>
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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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<keywords scheme="KwdEn" xml:lang="en">
<term>Animals</term>
<term>Blood Pressure</term>
<term>Extracellular Space (physiology)</term>
<term>Gradient</term>
<term>In vivo</term>
<term>Intracellular Fluid (physiology)</term>
<term>Liver</term>
<term>Liver (physiology)</term>
<term>Magnetic Resonance Imaging</term>
<term>Magnetic Resonance Spectroscopy (methods)</term>
<term>Male</term>
<term>Membrane Potentials</term>
<term>NMR spectrometry</term>
<term>Organometallic Compounds</term>
<term>Organophosphorus Compounds</term>
<term>Phosphorus</term>
<term>Rat</term>
<term>Rats</term>
<term>Rats, Sprague-Dawley</term>
<term>Relaxation time</term>
<term>Shift reagent</term>
<term>Sodium (metabolism)</term>
<term>Sodium Ions</term>
<term>Thulium</term>
</keywords>
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<term>Animaux</term>
<term>Composés organiques du phosphore</term>
<term>Composés organométalliques</term>
<term>Espace extracellulaire (physiologie)</term>
<term>Foie (physiologie)</term>
<term>Imagerie par résonance magnétique</term>
<term>Liquide intracellulaire (physiologie)</term>
<term>Mâle</term>
<term>Phosphore</term>
<term>Potentiels de membrane</term>
<term>Pression sanguine</term>
<term>Rat Sprague-Dawley</term>
<term>Rats</term>
<term>Sodium (métabolisme)</term>
<term>Spectroscopie par résonance magnétique ()</term>
<term>Thulium</term>
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<term>Sodium</term>
</keywords>
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<term>Organometallic Compounds</term>
<term>Organophosphorus Compounds</term>
<term>Phosphorus</term>
<term>Thulium</term>
</keywords>
<keywords scheme="MESH" qualifier="methods" xml:lang="en">
<term>Magnetic Resonance Spectroscopy</term>
</keywords>
<keywords scheme="MESH" qualifier="métabolisme" xml:lang="fr">
<term>Sodium</term>
</keywords>
<keywords scheme="MESH" qualifier="physiologie" xml:lang="fr">
<term>Espace extracellulaire</term>
<term>Foie</term>
<term>Liquide intracellulaire</term>
</keywords>
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<term>Extracellular Space</term>
<term>Intracellular Fluid</term>
<term>Liver</term>
</keywords>
<keywords scheme="MESH" xml:lang="en">
<term>Animals</term>
<term>Blood Pressure</term>
<term>Magnetic Resonance Imaging</term>
<term>Male</term>
<term>Membrane Potentials</term>
<term>Rats</term>
<term>Rats, Sprague-Dawley</term>
</keywords>
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<term>Animaux</term>
<term>Composés organiques du phosphore</term>
<term>Composés organométalliques</term>
<term>Imagerie par résonance magnétique</term>
<term>Mâle</term>
<term>Phosphore</term>
<term>Potentiels de membrane</term>
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<term>Rats</term>
<term>Réactif déplacement</term>
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<term>Gradient</term>
<term>Spectroscopie par résonance magnétique</term>
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<term>Foie</term>
<term>Rat</term>
<term>In vivo</term>
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<front>
<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>
</front>
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<affiliations>
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