Effect of levodopa on pain threshold in Parkinson's disease : A clinical and positron emission tomography study
Identifieur interne : 000B30 ( PascalFrancis/Checkpoint ); précédent : 000B29; suivant : 000B31Effect of levodopa on pain threshold in Parkinson's disease : A clinical and positron emission tomography study
Auteurs : Christine Brefel-Courbon [France] ; Pierre Payoux [France] ; Claire Thalamas [France] ; Fabienne Ory [France] ; Isabelle Quelven [France] ; Francois Chollet [France] ; Jean Louis Montastruc [France] ; Olivier Rascol [France]Source :
- Movement disorders [ 0885-3185 ] ; 2005.
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Abstract
Patients suffering from Parkinson's disease (PD) frequently experienced painful sensations that could be in part due to central modification of nociception. We compared pain threshold before and after administration of levodopa in PD patients and in controls, and investigated cerebral activity with positron emission tomography (PET) during experimental nociceptive stimulation. Pain threshold was determined using thermal stimulation during two randomized conditions: off and on. We performed H215O PET analysis of regional cerebral blood flow on subjects while they received alternate randomized noxious and innocuous stimuli during off and on conditions. In off condition, pain threshold in nine PD patients was significantly lower than in nine controls. Administration of levodopa significantly raised pain threshold in PD patients but not in controls. During off condition, there was a significant increase in pain-induced activation in right insula and prefrontal and left anterior cingulate cortices in PD compared to control group. Levodopa significantly reduced pain-induced activation in these areas in PD. This study shows that pain threshold is lower in PD patients but returns to normal ranges after levodopa administration. Moreover, PD patients have higher pain-induced activation in nociceptive pathways, which can be reduced by levodopa.
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<sourceDesc><biblStruct><analytic><title xml:lang="en" level="a">Effect of levodopa on pain threshold in Parkinson's disease : A clinical and positron emission tomography study</title>
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<series><title level="j" type="main">Movement disorders</title>
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<profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Emission tomography</term>
<term>Levodopa</term>
<term>Nervous system diseases</term>
<term>Pain</term>
<term>Parkinson disease</term>
<term>Positron emission tomography</term>
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<keywords scheme="Pascal" xml:lang="fr"><term>Système nerveux pathologie</term>
<term>Parkinson maladie</term>
<term>Lévodopa</term>
<term>Douleur</term>
<term>Tomoscintigraphie</term>
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<front><div type="abstract" xml:lang="en">Patients suffering from Parkinson's disease (PD) frequently experienced painful sensations that could be in part due to central modification of nociception. We compared pain threshold before and after administration of levodopa in PD patients and in controls, and investigated cerebral activity with positron emission tomography (PET) during experimental nociceptive stimulation. Pain threshold was determined using thermal stimulation during two randomized conditions: off and on. We performed H<sub>2</sub>
<sup>15</sup>
O PET analysis of regional cerebral blood flow on subjects while they received alternate randomized noxious and innocuous stimuli during off and on conditions. In off condition, pain threshold in nine PD patients was significantly lower than in nine controls. Administration of levodopa significantly raised pain threshold in PD patients but not in controls. During off condition, there was a significant increase in pain-induced activation in right insula and prefrontal and left anterior cingulate cortices in PD compared to control group. Levodopa significantly reduced pain-induced activation in these areas in PD. This study shows that pain threshold is lower in PD patients but returns to normal ranges after levodopa administration. Moreover, PD patients have higher pain-induced activation in nociceptive pathways, which can be reduced by levodopa.</div>
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<sZ>8 aut.</sZ>
</fA14>
<fA14 i1="02"><s1>Service de Neurologie, Purpan Hospital</s1>
<s2>Toulouse</s2>
<s3>FRA</s3>
<sZ>1 aut.</sZ>
<sZ>4 aut.</sZ>
<sZ>6 aut.</sZ>
</fA14>
<fA14 i1="03"><s1>Institut National de la Santé et de la Recherche Médicale U455</s1>
<s2>Toulouse</s2>
<s3>FRA</s3>
<sZ>1 aut.</sZ>
<sZ>2 aut.</sZ>
<sZ>6 aut.</sZ>
<sZ>8 aut.</sZ>
</fA14>
<fA14 i1="04"><s1>Centre d'Investigation Clinique, Purpan Hospital</s1>
<s2>Toulouse</s2>
<s3>FRA</s3>
<sZ>3 aut.</sZ>
<sZ>8 aut.</sZ>
</fA14>
<fA20><s1>1557-1563</s1>
</fA20>
<fA21><s1>2005</s1>
</fA21>
<fA23 i1="01"><s0>ENG</s0>
</fA23>
<fA43 i1="01"><s1>INIST</s1>
<s2>20953</s2>
<s5>354000153322170050</s5>
</fA43>
<fA44><s0>0000</s0>
<s1>© 2006 INIST-CNRS. All rights reserved.</s1>
</fA44>
<fA45><s0>33 ref.</s0>
</fA45>
<fA47 i1="01" i2="1"><s0>06-0191520</s0>
</fA47>
<fA60><s1>P</s1>
</fA60>
<fA61><s0>A</s0>
</fA61>
<fA64 i1="01" i2="1"><s0>Movement disorders</s0>
</fA64>
<fA66 i1="01"><s0>USA</s0>
</fA66>
<fC01 i1="01" l="ENG"><s0>Patients suffering from Parkinson's disease (PD) frequently experienced painful sensations that could be in part due to central modification of nociception. We compared pain threshold before and after administration of levodopa in PD patients and in controls, and investigated cerebral activity with positron emission tomography (PET) during experimental nociceptive stimulation. Pain threshold was determined using thermal stimulation during two randomized conditions: off and on. We performed H<sub>2</sub>
<sup>15</sup>
O PET analysis of regional cerebral blood flow on subjects while they received alternate randomized noxious and innocuous stimuli during off and on conditions. In off condition, pain threshold in nine PD patients was significantly lower than in nine controls. Administration of levodopa significantly raised pain threshold in PD patients but not in controls. During off condition, there was a significant increase in pain-induced activation in right insula and prefrontal and left anterior cingulate cortices in PD compared to control group. Levodopa significantly reduced pain-induced activation in these areas in PD. This study shows that pain threshold is lower in PD patients but returns to normal ranges after levodopa administration. Moreover, PD patients have higher pain-induced activation in nociceptive pathways, which can be reduced by levodopa.</s0>
</fC01>
<fC02 i1="01" i2="X"><s0>002B17</s0>
</fC02>
<fC02 i1="02" i2="X"><s0>002B17G</s0>
</fC02>
<fC02 i1="03" i2="X"><s0>002B24B07</s0>
</fC02>
<fC03 i1="01" i2="X" l="FRE"><s0>Système nerveux pathologie</s0>
<s5>01</s5>
</fC03>
<fC03 i1="01" i2="X" l="ENG"><s0>Nervous system diseases</s0>
<s5>01</s5>
</fC03>
<fC03 i1="01" i2="X" l="SPA"><s0>Sistema nervioso patología</s0>
<s5>01</s5>
</fC03>
<fC03 i1="02" i2="X" l="FRE"><s0>Parkinson maladie</s0>
<s5>02</s5>
</fC03>
<fC03 i1="02" i2="X" l="ENG"><s0>Parkinson disease</s0>
<s5>02</s5>
</fC03>
<fC03 i1="02" i2="X" l="SPA"><s0>Parkinson enfermedad</s0>
<s5>02</s5>
</fC03>
<fC03 i1="03" i2="X" l="FRE"><s0>Lévodopa</s0>
<s2>NK</s2>
<s2>FR</s2>
<s5>09</s5>
</fC03>
<fC03 i1="03" i2="X" l="ENG"><s0>Levodopa</s0>
<s2>NK</s2>
<s2>FR</s2>
<s5>09</s5>
</fC03>
<fC03 i1="03" i2="X" l="SPA"><s0>Levodopa</s0>
<s2>NK</s2>
<s2>FR</s2>
<s5>09</s5>
</fC03>
<fC03 i1="04" i2="X" l="FRE"><s0>Douleur</s0>
<s5>10</s5>
</fC03>
<fC03 i1="04" i2="X" l="ENG"><s0>Pain</s0>
<s5>10</s5>
</fC03>
<fC03 i1="04" i2="X" l="SPA"><s0>Dolor</s0>
<s5>10</s5>
</fC03>
<fC03 i1="05" i2="X" l="FRE"><s0>Tomoscintigraphie</s0>
<s5>11</s5>
</fC03>
<fC03 i1="05" i2="X" l="ENG"><s0>Emission tomography</s0>
<s5>11</s5>
</fC03>
<fC03 i1="05" i2="X" l="SPA"><s0>Tomocentelleografía</s0>
<s5>11</s5>
</fC03>
<fC03 i1="06" i2="X" l="FRE"><s0>Tomographie émission positon</s0>
<s5>12</s5>
</fC03>
<fC03 i1="06" i2="X" l="ENG"><s0>Positron emission tomography</s0>
<s5>12</s5>
</fC03>
<fC03 i1="06" i2="X" l="SPA"><s0>Tomografía emisión positrones</s0>
<s5>12</s5>
</fC03>
<fC07 i1="01" i2="X" l="FRE"><s0>Encéphale pathologie</s0>
<s5>37</s5>
</fC07>
<fC07 i1="01" i2="X" l="ENG"><s0>Cerebral disorder</s0>
<s5>37</s5>
</fC07>
<fC07 i1="01" i2="X" l="SPA"><s0>Encéfalo patología</s0>
<s5>37</s5>
</fC07>
<fC07 i1="02" i2="X" l="FRE"><s0>Extrapyramidal syndrome</s0>
<s5>38</s5>
</fC07>
<fC07 i1="02" i2="X" l="ENG"><s0>Extrapyramidal syndrome</s0>
<s5>38</s5>
</fC07>
<fC07 i1="02" i2="X" l="SPA"><s0>Extrapiramidal síndrome</s0>
<s5>38</s5>
</fC07>
<fC07 i1="03" i2="X" l="FRE"><s0>Maladie dégénérative</s0>
<s5>39</s5>
</fC07>
<fC07 i1="03" i2="X" l="ENG"><s0>Degenerative disease</s0>
<s5>39</s5>
</fC07>
<fC07 i1="03" i2="X" l="SPA"><s0>Enfermedad degenerativa</s0>
<s5>39</s5>
</fC07>
<fC07 i1="04" i2="X" l="FRE"><s0>Système nerveux central pathologie</s0>
<s5>40</s5>
</fC07>
<fC07 i1="04" i2="X" l="ENG"><s0>Central nervous system disease</s0>
<s5>40</s5>
</fC07>
<fC07 i1="04" i2="X" l="SPA"><s0>Sistema nervosio central patología</s0>
<s5>40</s5>
</fC07>
<fN21><s1>114</s1>
</fN21>
<fN44 i1="01"><s1>OTO</s1>
</fN44>
<fN82><s1>OTO</s1>
</fN82>
</pA>
</standard>
</inist>
<affiliations><list><country><li>France</li>
</country>
<region><li>Midi-Pyrénées</li>
<li>Occitanie (région administrative)</li>
</region>
<settlement><li>Toulouse</li>
</settlement>
</list>
<tree><country name="France"><region name="Occitanie (région administrative)"><name sortKey="Brefel Courbon, Christine" sort="Brefel Courbon, Christine" uniqKey="Brefel Courbon C" first="Christine" last="Brefel-Courbon">Christine Brefel-Courbon</name>
</region>
<name sortKey="Brefel Courbon, Christine" sort="Brefel Courbon, Christine" uniqKey="Brefel Courbon C" first="Christine" last="Brefel-Courbon">Christine Brefel-Courbon</name>
<name sortKey="Brefel Courbon, Christine" sort="Brefel Courbon, Christine" uniqKey="Brefel Courbon C" first="Christine" last="Brefel-Courbon">Christine Brefel-Courbon</name>
<name sortKey="Chollet, Francois" sort="Chollet, Francois" uniqKey="Chollet F" first="Francois" last="Chollet">Francois Chollet</name>
<name sortKey="Chollet, Francois" sort="Chollet, Francois" uniqKey="Chollet F" first="Francois" last="Chollet">Francois Chollet</name>
<name sortKey="Montastruc, Jean Louis" sort="Montastruc, Jean Louis" uniqKey="Montastruc J" first="Jean Louis" last="Montastruc">Jean Louis Montastruc</name>
<name sortKey="Ory, Fabienne" sort="Ory, Fabienne" uniqKey="Ory F" first="Fabienne" last="Ory">Fabienne Ory</name>
<name sortKey="Payoux, Pierre" sort="Payoux, Pierre" uniqKey="Payoux P" first="Pierre" last="Payoux">Pierre Payoux</name>
<name sortKey="Quelven, Isabelle" sort="Quelven, Isabelle" uniqKey="Quelven I" first="Isabelle" last="Quelven">Isabelle Quelven</name>
<name sortKey="Rascol, Olivier" sort="Rascol, Olivier" uniqKey="Rascol O" first="Olivier" last="Rascol">Olivier Rascol</name>
<name sortKey="Rascol, Olivier" sort="Rascol, Olivier" uniqKey="Rascol O" first="Olivier" last="Rascol">Olivier Rascol</name>
<name sortKey="Rascol, Olivier" sort="Rascol, Olivier" uniqKey="Rascol O" first="Olivier" last="Rascol">Olivier Rascol</name>
<name sortKey="Thalamas, Claire" sort="Thalamas, Claire" uniqKey="Thalamas C" first="Claire" last="Thalamas">Claire Thalamas</name>
</country>
</tree>
</affiliations>
</record>
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