Homocysteine is not associated with global motor or cognitive measures in nondemented older Parkinson's disease patients
Identifieur interne : 000F73 ( Istex/Curation ); précédent : 000F72; suivant : 000F74Homocysteine is not associated with global motor or cognitive measures in nondemented older Parkinson's disease patients
Auteurs : Richard M. Camicioli ; Thomas P. Bouchard ; Martin J. Somerville [Canada]Source :
- Movement Disorders [ 0885-3185 ] ; 2009-01-30.
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Abstract
Levodopa (L‐dopa) treatment of Parkinson's disease (PD) is associated with elevated homocysteine (Hcy). To examine the relationship between Hcy, methylenetetrahydrofolate reductase polymorphisms (MTHFR: 677C/T; 1298A/C), and B‐vitamins in older PD patients and whether Hcy or MTHFR polymorphisms were associated with clinical measures. MTHFR polymorphisms, B‐vitamin intake, and blood concentrations of Hcy, vitamin B12 and folate, and creatinine were determined and compared between groups (PD and controls). The relationship of Hcy to clinical measures was examined in PD. Among 51 patients [30M/21F, mean age (SD): 71.5 (4.7)] and 50 controls [29M/21F, 71.5 (4.8)], Hcy was higher in PD [13.6 (3.8); controls: 10.5 (2.5), P < 0.0005]. Hcy was associated with B‐vitamin intake [F = 21.7, P < 0.0005], folate level (R = 0.31, P = 0.035), and the interaction of intake with MTHFR 677T (F = 5.2, P = 0.007), but not MTHFR 1298C genotype. Hcy did not correlate with global measures of cognition, mood, or parkinsonism in PD or with dyskinesias, fluctuations, or freezing. Higher vitamin B12 levels were associated with lower dyskinesia risk. Hcy was influenced by PD, MTHFR 677 genotype, and vitamin use, but not by the MTHFR 1298 genotype. There was no clear association with motor or cognitive measures, but dyskinesias were less likely with higher B12. © 2008 Movement Disorder Society
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DOI: 10.1002/mds.22227
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Richard M. Camicioli<affiliation><mods:affiliation>Department of Medicine (Neurology), University of Alberta, Edmonton, Alberta Canada</mods:affiliation><wicri:noCountry code="subField">Alberta Canada</wicri:noCountry></affiliation><affiliation><mods:affiliation>Department of Medicine (Neurology), University of Alberta, Edmonton, Alberta Canada</mods:affiliation><wicri:noCountry code="subField">Alberta Canada</wicri:noCountry></affiliation>Le document en format XML
<record><TEI wicri:istexFullTextTei="biblStruct"><teiHeader><fileDesc><titleStmt><title xml:lang="en">Homocysteine is not associated with global motor or cognitive measures in nondemented older Parkinson's disease patients</title><author><name sortKey="Camicioli, Richard M" sort="Camicioli, Richard M" uniqKey="Camicioli R" first="Richard M." last="Camicioli">Richard M. Camicioli</name><affiliation><mods:affiliation>Department of Medicine (Neurology), University of Alberta, Edmonton, Alberta Canada</mods:affiliation><wicri:noCountry code="subField">Alberta Canada</wicri:noCountry></affiliation></author><author><name sortKey="Bouchard, Thomas P" sort="Bouchard, Thomas P" uniqKey="Bouchard T" first="Thomas P." last="Bouchard">Thomas P. Bouchard</name><affiliation><mods:affiliation>Department of Medicine (Neurology), University of Alberta, Edmonton, Alberta Canada</mods:affiliation><wicri:noCountry code="subField">Alberta Canada</wicri:noCountry></affiliation></author><author><name sortKey="Somerville, Martin J" sort="Somerville, Martin J" uniqKey="Somerville M" first="Martin J." last="Somerville">Martin J. 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Somerville</name><affiliation wicri:level="1"><mods:affiliation>Department of Medical Genetics, University of Alberta, Edmonton, Alberta, Canada</mods:affiliation><country xml:lang="fr">Canada</country><wicri:regionArea>Department of Medical Genetics, University of Alberta, Edmonton, Alberta</wicri:regionArea></affiliation></author></analytic><monogr></monogr><series><title level="j">Movement Disorders</title><title level="j" type="sub">Official Journal of the Movement Disorder Society</title><title level="j" type="abbrev">Mov. Disord.</title><idno type="ISSN">0885-3185</idno><idno type="eISSN">1531-8257</idno><imprint><publisher>Wiley Subscription Services, Inc., A Wiley Company</publisher><pubPlace>Hoboken</pubPlace><date type="published" when="2009-01-30">2009-01-30</date><biblScope unit="vol">24</biblScope><biblScope unit="issue">2</biblScope><biblScope unit="page" from="176">176</biblScope><biblScope unit="page" to="182">182</biblScope></imprint><idno type="ISSN">0885-3185</idno></series><idno type="istex">8D8D4721F3927D26EFD2C116CBEB0F3684705A37</idno><idno type="DOI">10.1002/mds.22227</idno><idno type="ArticleID">MDS22227</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0885-3185</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>B‐vitamins</term><term>MTHFR</term><term>Parkinson's disease</term><term>homocysteine</term><term>mental status</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Levodopa (L‐dopa) treatment of Parkinson's disease (PD) is associated with elevated homocysteine (Hcy). To examine the relationship between Hcy, methylenetetrahydrofolate reductase polymorphisms (MTHFR: 677C/T; 1298A/C), and B‐vitamins in older PD patients and whether Hcy or MTHFR polymorphisms were associated with clinical measures. MTHFR polymorphisms, B‐vitamin intake, and blood concentrations of Hcy, vitamin B12 and folate, and creatinine were determined and compared between groups (PD and controls). The relationship of Hcy to clinical measures was examined in PD. Among 51 patients [30M/21F, mean age (SD): 71.5 (4.7)] and 50 controls [29M/21F, 71.5 (4.8)], Hcy was higher in PD [13.6 (3.8); controls: 10.5 (2.5), P < 0.0005]. Hcy was associated with B‐vitamin intake [F = 21.7, P < 0.0005], folate level (R = 0.31, P = 0.035), and the interaction of intake with MTHFR 677T (F = 5.2, P = 0.007), but not MTHFR 1298C genotype. Hcy did not correlate with global measures of cognition, mood, or parkinsonism in PD or with dyskinesias, fluctuations, or freezing. Higher vitamin B12 levels were associated with lower dyskinesia risk. Hcy was influenced by PD, MTHFR 677 genotype, and vitamin use, but not by the MTHFR 1298 genotype. There was no clear association with motor or cognitive measures, but dyskinesias were less likely with higher B12. © 2008 Movement Disorder Society</div></front></TEI></record>Pour manipuler ce document sous Unix (Dilib)
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