Clinical correlates of [18F]fluorodopa uptake in five grafted parkinsonian patients
Identifieur interne : 005217 ( Main/Merge ); précédent : 005216; suivant : 005218Clinical correlates of [18F]fluorodopa uptake in five grafted parkinsonian patients
Auteurs : P. Remy [France] ; Y. Samson [France] ; P. Hantraye [France] ; A. Fontaine [France] ; G. Defer [France] ; J.-F. Mangin [France] ; G. Fenelon [France] ; C. Geny [France] ; F. Ricolfi [France] ; V. Frouin [France] ; J.-P. N'Guyen [France] ; R. Jeny [France] ; J.-D. Degos [France] ; M. Peschanski [France] ; P. Cesaro [France]Source :
- Annals of neurology [ 0364-5134 ] ; 1995.
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English descriptors
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Abstract
To assess the efficacy of fetal mesencephalic grafts in Parkinson's disease, it is important to know if the grafted cells survive and are functional. Positron emission tomography (PET) and [18F]fluorodopa ([18F]dopa) have been used to demonstrate the survival of the grafted cells, but the relationship of [18F]dopa uptake changes in the grafted striatum to motor function remains unclear. We investigated this question with 16 serial PET scans in 5 severe parkinsonian patients unilaterally grafted in whom we found a significant and progressive increase of the [18F]dopa uptake in the grafted putamen. The number of patients was too small to assess the sensitivity of [18F]dopa PET scans in individual patients. Yet, by analyzing the 16 serial PET scans we found a correlation between the [18F]dopa uptake (Ki) in the grafted putamen and the percentage of daily time spent "on," suggesting that Ki changes have a functional meaning. In addition, the Ki values were correlated with the contralateral finger dexterity to the same extent in both the grafted and nongrafted putamen. These results indicate that [18F]dopa uptake reflects the motor function of the opposite side of the body, similarly in the grafted and ungrafted putamen, at least in terms of these tasks. Finally, extrapolating from these correlations offers the suggestion that clinical optimal results of the graft could be achieved if the graft brings the Ki values in the putamen to about two standard deviations of mean control values.
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Pascal:95-0564874Le document en format XML
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<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Clinical correlates of [<sup>18</sup>
F]fluorodopa uptake in five grafted parkinsonian patients</title>
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<settlement type="city">Paris</settlement>
</placeName>
</affiliation>
</author>
<author><name sortKey="Geny, C" sort="Geny, C" uniqKey="Geny C" first="C." last="Geny">C. Geny</name>
<affiliation wicri:level="3"><inist:fA14 i1="03"><s1>CHU Henri Mondor, serv. neurologie</s1>
<s2>Créteil</s2>
<s3>FRA</s3>
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<country>France</country>
<placeName><region type="region">Île-de-France</region>
<region type="old region">Île-de-France</region>
<settlement type="city">Créteil</settlement>
</placeName>
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<country>France</country>
<placeName><region type="region">Île-de-France</region>
<region type="old region">Île-de-France</region>
<settlement type="city">Créteil</settlement>
</placeName>
</affiliation>
</author>
<author><name sortKey="Ricolfi, F" sort="Ricolfi, F" uniqKey="Ricolfi F" first="F." last="Ricolfi">F. Ricolfi</name>
<affiliation wicri:level="3"><inist:fA14 i1="04"><s1>CHU Henri Mondor, serv. neuroradiologie</s1>
<s2>Créteil</s2>
<s3>FRA</s3>
<sZ>9 aut.</sZ>
</inist:fA14>
<country>France</country>
<placeName><region type="region">Île-de-France</region>
<region type="old region">Île-de-France</region>
<settlement type="city">Créteil</settlement>
</placeName>
</affiliation>
<affiliation wicri:level="3"><inist:fA14 i1="05"><s1>INSERM Fac. médecine, U 421</s1>
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<country>France</country>
<placeName><region type="region">Île-de-France</region>
<region type="old region">Île-de-France</region>
<settlement type="city">Créteil</settlement>
</placeName>
</affiliation>
</author>
<author><name sortKey="Frouin, V" sort="Frouin, V" uniqKey="Frouin V" first="V." last="Frouin">V. Frouin</name>
<affiliation wicri:level="3"><inist:fA14 i1="01"><s1>CEA/DSV/DRIPP, serv. hosp. Frédéric Joliot</s1>
<s2>91401 Orsay</s2>
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<country>France</country>
<placeName><region type="region" nuts="2">Île-de-France</region>
<settlement type="city">Orsay</settlement>
</placeName>
</affiliation>
</author>
<author><name sortKey="N Guyen, J P" sort="N Guyen, J P" uniqKey="N Guyen J" first="J.-P." last="N'Guyen">J.-P. N'Guyen</name>
<affiliation wicri:level="3"><inist:fA14 i1="05"><s1>INSERM Fac. médecine, U 421</s1>
<s2>Créteil</s2>
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<country>France</country>
<placeName><region type="region">Île-de-France</region>
<region type="old region">Île-de-France</region>
<settlement type="city">Créteil</settlement>
</placeName>
</affiliation>
</author>
<author><name sortKey="Jeny, R" sort="Jeny, R" uniqKey="Jeny R" first="R." last="Jeny">R. Jeny</name>
<affiliation wicri:level="1"><inist:fA14 i1="07"><s1>Hôp. Esquirol, serv. gynécologie-obstétrique</s1>
<s2>St-Maurice</s2>
<s3>FRA</s3>
<sZ>12 aut.</sZ>
</inist:fA14>
<country>France</country>
<wicri:noRegion>St-Maurice</wicri:noRegion>
<wicri:noRegion>serv. gynécologie-obstétrique</wicri:noRegion>
<wicri:noRegion>St-Maurice</wicri:noRegion>
</affiliation>
</author>
<author><name sortKey="Degos, J D" sort="Degos, J D" uniqKey="Degos J" first="J.-D." last="Degos">J.-D. Degos</name>
<affiliation wicri:level="3"><inist:fA14 i1="03"><s1>CHU Henri Mondor, serv. neurologie</s1>
<s2>Créteil</s2>
<s3>FRA</s3>
<sZ>5 aut.</sZ>
<sZ>8 aut.</sZ>
<sZ>13 aut.</sZ>
<sZ>15 aut.</sZ>
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<country>France</country>
<placeName><region type="region">Île-de-France</region>
<region type="old region">Île-de-France</region>
<settlement type="city">Créteil</settlement>
</placeName>
</affiliation>
</author>
<author><name sortKey="Peschanski, M" sort="Peschanski, M" uniqKey="Peschanski M" first="M." last="Peschanski">M. Peschanski</name>
<affiliation wicri:level="3"><inist:fA14 i1="05"><s1>INSERM Fac. médecine, U 421</s1>
<s2>Créteil</s2>
<s3>FRA</s3>
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<country>France</country>
<placeName><region type="region">Île-de-France</region>
<region type="old region">Île-de-France</region>
<settlement type="city">Créteil</settlement>
</placeName>
</affiliation>
</author>
<author><name sortKey="Cesaro, P" sort="Cesaro, P" uniqKey="Cesaro P" first="P." last="Cesaro">P. Cesaro</name>
<affiliation wicri:level="3"><inist:fA14 i1="03"><s1>CHU Henri Mondor, serv. neurologie</s1>
<s2>Créteil</s2>
<s3>FRA</s3>
<sZ>5 aut.</sZ>
<sZ>8 aut.</sZ>
<sZ>13 aut.</sZ>
<sZ>15 aut.</sZ>
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<country>France</country>
<placeName><region type="region">Île-de-France</region>
<region type="old region">Île-de-France</region>
<settlement type="city">Créteil</settlement>
</placeName>
</affiliation>
<affiliation wicri:level="3"><inist:fA14 i1="05"><s1>INSERM Fac. médecine, U 421</s1>
<s2>Créteil</s2>
<s3>FRA</s3>
<sZ>5 aut.</sZ>
<sZ>8 aut.</sZ>
<sZ>9 aut.</sZ>
<sZ>11 aut.</sZ>
<sZ>14 aut.</sZ>
<sZ>15 aut.</sZ>
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<country>France</country>
<placeName><region type="region">Île-de-France</region>
<region type="old region">Île-de-France</region>
<settlement type="city">Créteil</settlement>
</placeName>
</affiliation>
</author>
</analytic>
<series><title level="j" type="main">Annals of neurology</title>
<title level="j" type="abbreviated">Ann. neurol.</title>
<idno type="ISSN">0364-5134</idno>
<imprint><date when="1995">1995</date>
</imprint>
</series>
</biblStruct>
</sourceDesc>
<seriesStmt><title level="j" type="main">Annals of neurology</title>
<title level="j" type="abbreviated">Ann. neurol.</title>
<idno type="ISSN">0364-5134</idno>
</seriesStmt>
</fileDesc>
<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Cell function</term>
<term>Emission tomography</term>
<term>Graft</term>
<term>Homograft</term>
<term>Human</term>
<term>Nervous tissue</term>
<term>Parkinson disease</term>
<term>Positron</term>
<term>Surgery</term>
</keywords>
<keywords scheme="Pascal" xml:lang="fr"><term>Parkinson maladie</term>
<term>Homogreffe</term>
<term>Tissu nerveux</term>
<term>Tomoscintigraphie</term>
<term>Positon</term>
<term>Fonction cellulaire</term>
<term>Greffon</term>
<term>Homme</term>
<term>Chirurgie</term>
</keywords>
<keywords scheme="Wicri" type="topic" xml:lang="fr"><term>Homme</term>
<term>Chirurgie</term>
</keywords>
</textClass>
</profileDesc>
</teiHeader>
<front><div type="abstract" xml:lang="en">To assess the efficacy of fetal mesencephalic grafts in Parkinson's disease, it is important to know if the grafted cells survive and are functional. Positron emission tomography (PET) and [<sup>18</sup>
F]fluorodopa ([<sup>18</sup>
F]dopa) have been used to demonstrate the survival of the grafted cells, but the relationship of [<sup>18</sup>
F]dopa uptake changes in the grafted striatum to motor function remains unclear. We investigated this question with 16 serial PET scans in 5 severe parkinsonian patients unilaterally grafted in whom we found a significant and progressive increase of the [<sup>18</sup>
F]dopa uptake in the grafted putamen. The number of patients was too small to assess the sensitivity of [<sup>18</sup>
F]dopa PET scans in individual patients. Yet, by analyzing the 16 serial PET scans we found a correlation between the [<sup>18</sup>
F]dopa uptake (K<sub>i</sub>
) in the grafted putamen and the percentage of daily time spent "on," suggesting that K<sub>i</sub>
changes have a functional meaning. In addition, the K<sub>i</sub>
values were correlated with the contralateral finger dexterity to the same extent in both the grafted and nongrafted putamen. These results indicate that [<sup>18</sup>
F]dopa uptake reflects the motor function of the opposite side of the body, similarly in the grafted and ungrafted putamen, at least in terms of these tasks. Finally, extrapolating from these correlations offers the suggestion that clinical optimal results of the graft could be achieved if the graft brings the K<sub>i</sub>
values in the putamen to about two standard deviations of mean control values.</div>
</front>
</TEI>
<affiliations><list><country><li>France</li>
</country>
<region><li>Île-de-France</li>
</region>
<settlement><li>Créteil</li>
<li>Orsay</li>
<li>Paris</li>
</settlement>
</list>
<tree><country name="France"><region name="Île-de-France"><name sortKey="Remy, P" sort="Remy, P" uniqKey="Remy P" first="P." last="Remy">P. Remy</name>
</region>
<name sortKey="Cesaro, P" sort="Cesaro, P" uniqKey="Cesaro P" first="P." last="Cesaro">P. Cesaro</name>
<name sortKey="Cesaro, P" sort="Cesaro, P" uniqKey="Cesaro P" first="P." last="Cesaro">P. Cesaro</name>
<name sortKey="Defer, G" sort="Defer, G" uniqKey="Defer G" first="G." last="Defer">G. Defer</name>
<name sortKey="Defer, G" sort="Defer, G" uniqKey="Defer G" first="G." last="Defer">G. Defer</name>
<name sortKey="Degos, J D" sort="Degos, J D" uniqKey="Degos J" first="J.-D." last="Degos">J.-D. Degos</name>
<name sortKey="Fenelon, G" sort="Fenelon, G" uniqKey="Fenelon G" first="G." last="Fenelon">G. Fenelon</name>
<name sortKey="Fontaine, A" sort="Fontaine, A" uniqKey="Fontaine A" first="A." last="Fontaine">A. Fontaine</name>
<name sortKey="Frouin, V" sort="Frouin, V" uniqKey="Frouin V" first="V." last="Frouin">V. Frouin</name>
<name sortKey="Geny, C" sort="Geny, C" uniqKey="Geny C" first="C." last="Geny">C. Geny</name>
<name sortKey="Geny, C" sort="Geny, C" uniqKey="Geny C" first="C." last="Geny">C. Geny</name>
<name sortKey="Hantraye, P" sort="Hantraye, P" uniqKey="Hantraye P" first="P." last="Hantraye">P. Hantraye</name>
<name sortKey="Hantraye, P" sort="Hantraye, P" uniqKey="Hantraye P" first="P." last="Hantraye">P. Hantraye</name>
<name sortKey="Jeny, R" sort="Jeny, R" uniqKey="Jeny R" first="R." last="Jeny">R. Jeny</name>
<name sortKey="Mangin, J F" sort="Mangin, J F" uniqKey="Mangin J" first="J.-F." last="Mangin">J.-F. Mangin</name>
<name sortKey="N Guyen, J P" sort="N Guyen, J P" uniqKey="N Guyen J" first="J.-P." last="N'Guyen">J.-P. N'Guyen</name>
<name sortKey="Peschanski, M" sort="Peschanski, M" uniqKey="Peschanski M" first="M." last="Peschanski">M. Peschanski</name>
<name sortKey="Ricolfi, F" sort="Ricolfi, F" uniqKey="Ricolfi F" first="F." last="Ricolfi">F. Ricolfi</name>
<name sortKey="Ricolfi, F" sort="Ricolfi, F" uniqKey="Ricolfi F" first="F." last="Ricolfi">F. Ricolfi</name>
<name sortKey="Samson, Y" sort="Samson, Y" uniqKey="Samson Y" first="Y." last="Samson">Y. Samson</name>
</country>
</tree>
</affiliations>
</record>
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