Mild cognitive impairment in patients with Parkinson's disease is associated with increased cortical degeneration.
Identifieur interne : 000912 ( Main/Exploration ); précédent : 000911; suivant : 000913Mild cognitive impairment in patients with Parkinson's disease is associated with increased cortical degeneration.
Auteurs : Alexandru Hanganu [Canada] ; Christophe Bedetti ; Thomas Jubault ; Jean-Francois Gagnon ; Béatriz Mejia-Constain ; Clotilde Degroot ; Anne-Louise Lafontaine ; Sylvain Chouinard ; Oury MonchiSource :
- Movement disorders : official journal of the Movement Disorder Society [ 1531-8257 ] ; 2013.
English descriptors
- KwdEn :
- Aged, Cerebral Cortex (pathology), Disease Progression, Female, Frontal Lobe (pathology), Humans, Image Processing, Computer-Assisted, Magnetic Resonance Imaging, Male, Middle Aged, Mild Cognitive Impairment (etiology), Mild Cognitive Impairment (pathology), Mild Cognitive Impairment (psychology), Nerve Degeneration (pathology), Nerve Degeneration (psychology), Neuropsychological Tests, Parkinson Disease (complications), Parkinson Disease (pathology), Parkinson Disease (psychology), Temporal Lobe (pathology).
- MESH :
- complications : Parkinson Disease.
- etiology : Mild Cognitive Impairment.
- pathology : Cerebral Cortex, Frontal Lobe, Mild Cognitive Impairment, Nerve Degeneration, Parkinson Disease, Temporal Lobe.
- psychology : Mild Cognitive Impairment, Nerve Degeneration, Parkinson Disease.
- Aged, Disease Progression, Female, Humans, Image Processing, Computer-Assisted, Magnetic Resonance Imaging, Male, Middle Aged, Neuropsychological Tests.
Abstract
Mild cognitive impairment (MCI) can occur early in the course of Parkinson's disease (PD), and its presence increases the risk of developing dementia. Determining the cortical changes associated with MCI in PD, thus, may be useful in predicting the future development of dementia. To address this objective, 37 patients with PD, divided into 2 groups according to the presence or absence MCI (18 with and 19 without) and 16 matched controls, underwent anatomic magnetic resonance imaging. Corticometry analyses were performed to measure the changes in cortical thickness and surface area as well as their correlation with disease duration. Compared with healthy controls, the PD-MCI group exhibited increased atrophy and changes of local surface area in the bilateral occipital, left temporal, and frontal cortices; whereas the PD non-MCI group exhibited only unilateral thinning and decreased surface area in the occipital lobe and in the frontal cortex. In addition, a comparison between the PD-MCI and PD non-MCI groups revealed increased local surface area in the occipital lobe, temporal lobe, and postcentral gyrus for the cognitively impaired patients. It is noteworthy that, in the PD-MCI group, cortical thickness had a significant negative correlation with disease duration in the precentral, supramarginal, occipital, and superior temporal cortices; whereas, in the PD non-MCI group, such a correlation was absent. The findings from this study reveal that, at the same stage of PD evolution, the presence of MCI is associated with a higher level of cortical changes, suggesting that cortical degeneration is increased in patients with PD because of the presence of MCI.
DOI: 10.1002/mds.25541
PubMed: 23801590
Affiliations:
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Jubault</name></author><author><name sortKey="Gagnon, Jean Francois" sort="Gagnon, Jean Francois" uniqKey="Gagnon J" first="Jean-Francois" last="Gagnon">Jean-Francois Gagnon</name></author><author><name sortKey="Mejia Constain, Beatriz" sort="Mejia Constain, Beatriz" uniqKey="Mejia Constain B" first="Béatriz" last="Mejia-Constain">Béatriz Mejia-Constain</name></author><author><name sortKey="Degroot, Clotilde" sort="Degroot, Clotilde" uniqKey="Degroot C" first="Clotilde" last="Degroot">Clotilde Degroot</name></author><author><name sortKey="Lafontaine, Anne Louise" sort="Lafontaine, Anne Louise" uniqKey="Lafontaine A" first="Anne-Louise" last="Lafontaine">Anne-Louise Lafontaine</name></author><author><name sortKey="Chouinard, Sylvain" sort="Chouinard, Sylvain" uniqKey="Chouinard S" first="Sylvain" last="Chouinard">Sylvain Chouinard</name></author><author><name sortKey="Monchi, Oury" sort="Monchi, Oury" uniqKey="Monchi O" first="Oury" last="Monchi">Oury 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last="Hanganu">Alexandru Hanganu</name><affiliation wicri:level="1"><nlm:affiliation>Centre de Recherche, Institut Universitaire de Gériatrie de Montréal, Montréal, Quebec, Canada.</nlm:affiliation><country xml:lang="fr">Canada</country><wicri:regionArea>Centre de Recherche, Institut Universitaire de Gériatrie de Montréal, Montréal, Quebec</wicri:regionArea><wicri:noRegion>Quebec</wicri:noRegion></affiliation></author><author><name sortKey="Bedetti, Christophe" sort="Bedetti, Christophe" uniqKey="Bedetti C" first="Christophe" last="Bedetti">Christophe Bedetti</name></author><author><name sortKey="Jubault, Thomas" sort="Jubault, Thomas" uniqKey="Jubault T" first="Thomas" last="Jubault">Thomas Jubault</name></author><author><name sortKey="Gagnon, Jean Francois" sort="Gagnon, Jean Francois" uniqKey="Gagnon J" first="Jean-Francois" last="Gagnon">Jean-Francois Gagnon</name></author><author><name sortKey="Mejia Constain, Beatriz" sort="Mejia Constain, Beatriz" uniqKey="Mejia Constain B" first="Béatriz" last="Mejia-Constain">Béatriz Mejia-Constain</name></author><author><name sortKey="Degroot, Clotilde" sort="Degroot, Clotilde" uniqKey="Degroot C" first="Clotilde" last="Degroot">Clotilde Degroot</name></author><author><name sortKey="Lafontaine, Anne Louise" sort="Lafontaine, Anne Louise" uniqKey="Lafontaine A" first="Anne-Louise" last="Lafontaine">Anne-Louise Lafontaine</name></author><author><name sortKey="Chouinard, Sylvain" sort="Chouinard, Sylvain" uniqKey="Chouinard S" first="Sylvain" last="Chouinard">Sylvain Chouinard</name></author><author><name sortKey="Monchi, Oury" sort="Monchi, Oury" uniqKey="Monchi O" first="Oury" last="Monchi">Oury Monchi</name></author></analytic><series><title level="j">Movement disorders : official journal of the Movement Disorder Society</title><idno type="eISSN">1531-8257</idno><imprint><date when="2013" type="published">2013</date></imprint></series></biblStruct></sourceDesc></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" 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qualifier="pathology" xml:lang="en"><term>Cerebral Cortex</term><term>Frontal Lobe</term><term>Mild Cognitive Impairment</term><term>Nerve Degeneration</term><term>Parkinson Disease</term><term>Temporal Lobe</term></keywords><keywords scheme="MESH" qualifier="psychology" xml:lang="en"><term>Mild Cognitive Impairment</term><term>Nerve Degeneration</term><term>Parkinson Disease</term></keywords><keywords scheme="MESH" xml:lang="en"><term>Aged</term><term>Disease Progression</term><term>Female</term><term>Humans</term><term>Image Processing, Computer-Assisted</term><term>Magnetic Resonance Imaging</term><term>Male</term><term>Middle Aged</term><term>Neuropsychological Tests</term></keywords></textClass></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Mild cognitive impairment (MCI) can occur early in the course of Parkinson's disease (PD), and its presence increases the risk of developing dementia. Determining the cortical changes associated with MCI in PD, thus, may be useful in predicting the future development of dementia. To address this objective, 37 patients with PD, divided into 2 groups according to the presence or absence MCI (18 with and 19 without) and 16 matched controls, underwent anatomic magnetic resonance imaging. Corticometry analyses were performed to measure the changes in cortical thickness and surface area as well as their correlation with disease duration. Compared with healthy controls, the PD-MCI group exhibited increased atrophy and changes of local surface area in the bilateral occipital, left temporal, and frontal cortices; whereas the PD non-MCI group exhibited only unilateral thinning and decreased surface area in the occipital lobe and in the frontal cortex. In addition, a comparison between the PD-MCI and PD non-MCI groups revealed increased local surface area in the occipital lobe, temporal lobe, and postcentral gyrus for the cognitively impaired patients. It is noteworthy that, in the PD-MCI group, cortical thickness had a significant negative correlation with disease duration in the precentral, supramarginal, occipital, and superior temporal cortices; whereas, in the PD non-MCI group, such a correlation was absent. The findings from this study reveal that, at the same stage of PD evolution, the presence of MCI is associated with a higher level of cortical changes, suggesting that cortical degeneration is increased in patients with PD because of the presence of MCI.</div></front></TEI><affiliations><list><country><li>Canada</li></country></list><tree><noCountry><name sortKey="Bedetti, Christophe" sort="Bedetti, Christophe" uniqKey="Bedetti C" first="Christophe" last="Bedetti">Christophe Bedetti</name><name sortKey="Chouinard, Sylvain" sort="Chouinard, Sylvain" uniqKey="Chouinard S" first="Sylvain" last="Chouinard">Sylvain Chouinard</name><name sortKey="Degroot, Clotilde" sort="Degroot, Clotilde" uniqKey="Degroot C" first="Clotilde" last="Degroot">Clotilde Degroot</name><name sortKey="Gagnon, Jean Francois" sort="Gagnon, Jean Francois" uniqKey="Gagnon J" first="Jean-Francois" last="Gagnon">Jean-Francois Gagnon</name><name sortKey="Jubault, Thomas" sort="Jubault, Thomas" uniqKey="Jubault T" first="Thomas" last="Jubault">Thomas Jubault</name><name sortKey="Lafontaine, Anne Louise" sort="Lafontaine, Anne Louise" uniqKey="Lafontaine A" first="Anne-Louise" last="Lafontaine">Anne-Louise Lafontaine</name><name sortKey="Mejia Constain, Beatriz" sort="Mejia Constain, Beatriz" uniqKey="Mejia Constain B" first="Béatriz" last="Mejia-Constain">Béatriz Mejia-Constain</name><name sortKey="Monchi, Oury" sort="Monchi, Oury" uniqKey="Monchi O" first="Oury" last="Monchi">Oury Monchi</name></noCountry><country name="Canada"><noRegion><name sortKey="Hanganu, Alexandru" sort="Hanganu, Alexandru" uniqKey="Hanganu A" first="Alexandru" last="Hanganu">Alexandru Hanganu</name></noRegion></country></tree></affiliations></record>Pour manipuler ce document sous Unix (Dilib)
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