Assessment of metabolic changes in the striatum of a rat model of parkinsonism: an in vivo (1)H MRS study.
Identifieur interne : 000943 ( Ncbi/Checkpoint ); précédent : 000942; suivant : 000944Assessment of metabolic changes in the striatum of a rat model of parkinsonism: an in vivo (1)H MRS study.
Auteurs : N. Kickler [France] ; E. Lacombe ; C. Chassain ; F. Durif ; A. Krainik ; R. Farion ; P. Provent ; C. Segebarth ; C. Rémy ; M. SavastaSource :
- NMR in biomedicine [ 0952-3480 ] ; 2009.
English descriptors
- KwdEn :
- MESH :
- chemical : Protons.
- metabolism : Corpus Striatum, Parkinson Disease.
- methods : Magnetic Resonance Spectroscopy.
- Animals, Disease Models, Animal, Humans, Male, Rats, Rats, Sprague-Dawley.
Abstract
Degeneration of the dopaminergic neurons of the substantia nigra pars compacta in Parkinson's disease induces an abnormal activation of the glutamatergic neurotransmission system within the basal ganglia network and related structures. The aim of this study was to use proton MRS to show metabolic changes in the striatum of 6-hydroxydopamine-lesioned rats, a rodent animal model of Parkinson's disease. Animals were examined before and after extensive lesioning of the nigral dopaminergic neurons and after acute administration of L-3,4-dihydroxyphenylalanine. No significant alterations in glutamate concentrations, assessed by the MR signal dominated by glutamate with minor contributions from glutamine and gamma-aminobutyric acid, could be measured. The total choline/total creatine ratio was found to be reduced in the striatum of the ipsilateral hemisphere.
DOI: 10.1002/nbm.1305
PubMed: 19130495
Affiliations:
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The aim of this study was to use proton MRS to show metabolic changes in the striatum of 6-hydroxydopamine-lesioned rats, a rodent animal model of Parkinson's disease. Animals were examined before and after extensive lesioning of the nigral dopaminergic neurons and after acute administration of L-3,4-dihydroxyphenylalanine. No significant alterations in glutamate concentrations, assessed by the MR signal dominated by glutamate with minor contributions from glutamine and gamma-aminobutyric acid, could be measured. The total choline/total creatine ratio was found to be reduced in the striatum of the ipsilateral hemisphere.</div></front></TEI><affiliations><list><country><li>France</li></country><region><li>Auvergne-Rhône-Alpes</li><li>Rhône-Alpes</li></region><settlement><li>Grenoble</li></settlement></list><tree><noCountry><name sortKey="Chassain, C" sort="Chassain, C" uniqKey="Chassain C" first="C" last="Chassain">C. 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