The effect of monoamine oxidase B (MAOB) and catechol‐O‐methyltransferase (COMT) polymorphisms on levodopa therapy in patients with sporadic Parkinson's disease
Identifieur interne : 001565 ( Main/Exploration ); précédent : 001564; suivant : 001566The effect of monoamine oxidase B (MAOB) and catechol‐O‐methyltransferase (COMT) polymorphisms on levodopa therapy in patients with sporadic Parkinson's disease
Auteurs : M. Białecka ; M. Dro Dzik ; G. Kłodowska-Duda ; K. Honczarenko ; B. Gawro Ska-Szklarz ; G. Opala ; J. Stankiewicz [Pologne]Source :
- Acta Neurologica Scandinavica [ 0001-6314 ] ; 2004-10.
English descriptors
Abstract
Objectives – The etiology of sporadic idiopathic Parkinson's disease (PD) is considered multifactorial with both genetic and environmental factors modifying the disease expression. Recent studies suggest that polymorphism in monoamine oxidase B (MAOB) and catechol‐O‐methyltransferase (COMT) might influence the risk and treatment of PD. The aim of the study was to evaluate the effect of MAOB and COMT genetic polymorphism on effective daily dose of levodopa applied during the first 5 years of treatment, and to find out if a relationship exists between MAOB and COMT haplotypes and motor disturbances onset in PD patients treated with levodopa preparations. Materials and methods – A total of 95 patients (40 females and 55 males) of Polish origin diagnosed with sporadic PD were enrolled into the study, and were divided into two groups. Group 1 – patients treated with doses of levodopa below 500 mg/day during the first 5 years of treatment. Group 2 – patients requiring levodopa doses exceeding 500 mg/24 h during the first 5 years of treatment. Low activity alleles of MAOB and COMT, i.e. MAOB allele A and COMTL as well as high activity ones, i.e. MAOB allele G and COMTH, were determined using PCR‐RFLP method. Results – No statistically significant differences were found in MAOB and COMT allele distribution in the two groups. However, the frequency of COMTL/L homozygotes was higher in the group treated with low doses of levodopa when compared with the second group. MAOB and COMT AG‐HH haplotype predominated in the group of females treated with high daily doses of levodopa when compared with AG‐LL haplotype in the group of females treated with low daily doses of levodopa (<500 mg/24 h). Conclusion – The results of the study suggest that patients with COMTL/L genotype and possibly MAOB genotype A may benefit from more efficient and safer levodopa therapy.
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DOI: 10.1111/j.1600-0404.2004.00315.x
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Stankiewicz</name><affiliation wicri:level="1"><country xml:lang="fr">Pologne</country><wicri:regionArea>Department of Neurology, County Hospital, Szczecin</wicri:regionArea><wicri:noRegion>Szczecin</wicri:noRegion></affiliation></author></analytic><monogr></monogr><series><title level="j">Acta Neurologica Scandinavica</title><idno type="ISSN">0001-6314</idno><idno type="eISSN">1600-0404</idno><imprint><publisher>Munksgaard International Publishers</publisher><pubPlace>Oxford, UK</pubPlace><date type="published" when="2004-10">2004-10</date><biblScope unit="volume">110</biblScope><biblScope unit="issue">4</biblScope><biblScope unit="page" from="260">260</biblScope><biblScope unit="page" to="266">266</biblScope></imprint><idno type="ISSN">0001-6314</idno></series><idno type="istex">F811DFDE2012B8521B68A96C48518236AE414DD8</idno><idno type="DOI">10.1111/j.1600-0404.2004.00315.x</idno><idno type="ArticleID">ANE315</idno></biblStruct></sourceDesc><seriesStmt><idno type="ISSN">0001-6314</idno></seriesStmt></fileDesc><profileDesc><textClass><keywords scheme="KwdEn" xml:lang="en"><term>Parkinson's disease</term><term>catechol‐O‐methyltransferase</term><term>monoamine oxidase B</term><term>polymorphism</term></keywords></textClass><langUsage><language ident="en">en</language></langUsage></profileDesc></teiHeader><front><div type="abstract" xml:lang="en">Objectives – The etiology of sporadic idiopathic Parkinson's disease (PD) is considered multifactorial with both genetic and environmental factors modifying the disease expression. Recent studies suggest that polymorphism in monoamine oxidase B (MAOB) and catechol‐O‐methyltransferase (COMT) might influence the risk and treatment of PD. The aim of the study was to evaluate the effect of MAOB and COMT genetic polymorphism on effective daily dose of levodopa applied during the first 5 years of treatment, and to find out if a relationship exists between MAOB and COMT haplotypes and motor disturbances onset in PD patients treated with levodopa preparations. Materials and methods – A total of 95 patients (40 females and 55 males) of Polish origin diagnosed with sporadic PD were enrolled into the study, and were divided into two groups. Group 1 – patients treated with doses of levodopa below 500 mg/day during the first 5 years of treatment. Group 2 – patients requiring levodopa doses exceeding 500 mg/24 h during the first 5 years of treatment. Low activity alleles of MAOB and COMT, i.e. MAOB allele A and COMTL as well as high activity ones, i.e. MAOB allele G and COMTH, were determined using PCR‐RFLP method. Results – No statistically significant differences were found in MAOB and COMT allele distribution in the two groups. However, the frequency of COMTL/L homozygotes was higher in the group treated with low doses of levodopa when compared with the second group. MAOB and COMT AG‐HH haplotype predominated in the group of females treated with high daily doses of levodopa when compared with AG‐LL haplotype in the group of females treated with low daily doses of levodopa (<500 mg/24 h). Conclusion – The results of the study suggest that patients with COMTL/L genotype and possibly MAOB genotype A may benefit from more efficient and safer levodopa therapy.</div></front></TEI><affiliations><list><country><li>Pologne</li></country></list><tree><noCountry><name sortKey="Bialecka, M" sort="Bialecka, M" uniqKey="Bialecka M" first="M." last="Białecka">M. Białecka</name><name sortKey="Dro Dzik, M" sort="Dro Dzik, M" uniqKey="Dro Dzik M" first="M." last="Dro Dzik">M. Dro Dzik</name><name sortKey="Gawro Ska Zklarz, B" sort="Gawro Ska Zklarz, B" uniqKey="Gawro Ska Zklarz B" first="B." last="Gawro Ska-Szklarz">B. Gawro Ska-Szklarz</name><name sortKey="Honczarenko, K" sort="Honczarenko, K" uniqKey="Honczarenko K" first="K." last="Honczarenko">K. Honczarenko</name><name sortKey="Klodowska Uda, G" sort="Klodowska Uda, G" uniqKey="Klodowska Uda G" first="G." last="Kłodowska-Duda">G. 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