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PINK1 mutations in sporadic early‐onset Parkinson's disease

Identifieur interne : 002091 ( Main/Corpus ); précédent : 002090; suivant : 002092

PINK1 mutations in sporadic early‐onset Parkinson's disease

Auteurs : Eng-King Tan ; Kenneth Yew ; Eva Chua ; K. Puvan ; Hui Shen ; Esther Lee ; Kim-Yoong Puong ; Yi Zhao ; Ratnagopal Pavanni ; Meng-Cheong Wong ; Dominic Jamora ; Deidre De Silva ; Kyaw-Thu Moe ; Fung-Peng Woon ; Yih Yuen ; Louis Tan

Source :

RBID : ISTEX:225911185FD88696B492DB89EFE16A75594682EE

English descriptors

Abstract

Pathogenic PINK1 mutations have been described in PARK6‐linked Parkinson's disease (PD) patients of Asian origin. However, data on the frequency of PINK1 mutations in sporadic early‐onset Parkinson's disease (EOPD) Asian patients are lacking. The objectives of this study were to report the frequency of PINK1 mutations of sporadic EOPD in an Asian cohort comprising of ethnic Chinese, Malays, and Indians, and to highlight a PINK1‐positive patient who presented with restless legs symptoms. Eighty consecutive sporadic EOPD patients from the movement disorder clinics of two major tertiary institutions in the country were included. We performed sequence analysis of all the coding and exon–intron junctions of the PINK1 using specific primer sets. In addition, we genotyped polymorphisms detected from the analysis in a group of sporadic PD patients and controls. Three different mutations (two homozygous nonsense and one heterozygous missense) in the putative kinase domain were found in three patients, giving a 3.7% frequency of PINK1 mutations in our EOPD cohort. All the mutations were absent in 200 healthy controls. One patient with a novel homozygous nonsense PINK1 mutation presented unusually with restless legs symptoms. Separately, analysis of the frequency of four PINK1 polymorphisms in a group of sporadic PD and controls did not reveal any significant differences. We highlight a 3.7% frequency of PINK1 mutations in an Asian cohort (ethnic Chinese, Malay, and Indian) of EOPD. The phenotypic spectrum associated with PINK1‐positive patients may be wider than previously reported. Polymorphisms of PINK1 do not appear to modulate risk of PD in our population. © 2006 Movement Disorder Society

Url:
DOI: 10.1002/mds.20810

Links to Exploration step

ISTEX:225911185FD88696B492DB89EFE16A75594682EE

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<div type="abstract" xml:lang="en">Pathogenic PINK1 mutations have been described in PARK6‐linked Parkinson's disease (PD) patients of Asian origin. However, data on the frequency of PINK1 mutations in sporadic early‐onset Parkinson's disease (EOPD) Asian patients are lacking. The objectives of this study were to report the frequency of PINK1 mutations of sporadic EOPD in an Asian cohort comprising of ethnic Chinese, Malays, and Indians, and to highlight a PINK1‐positive patient who presented with restless legs symptoms. Eighty consecutive sporadic EOPD patients from the movement disorder clinics of two major tertiary institutions in the country were included. We performed sequence analysis of all the coding and exon–intron junctions of the PINK1 using specific primer sets. In addition, we genotyped polymorphisms detected from the analysis in a group of sporadic PD patients and controls. Three different mutations (two homozygous nonsense and one heterozygous missense) in the putative kinase domain were found in three patients, giving a 3.7% frequency of PINK1 mutations in our EOPD cohort. All the mutations were absent in 200 healthy controls. One patient with a novel homozygous nonsense PINK1 mutation presented unusually with restless legs symptoms. Separately, analysis of the frequency of four PINK1 polymorphisms in a group of sporadic PD and controls did not reveal any significant differences. We highlight a 3.7% frequency of PINK1 mutations in an Asian cohort (ethnic Chinese, Malay, and Indian) of EOPD. The phenotypic spectrum associated with PINK1‐positive patients may be wider than previously reported. Polymorphisms of PINK1 do not appear to modulate risk of PD in our population. © 2006 Movement Disorder Society</div>
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mutations in sporadic early‐onset Parkinson's disease (EOPD) Asian patients are lacking. The objectives of this study were to report the frequency of
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<i>PINK1</i>
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<placeTerm type="text">Hoboken</placeTerm>
</place>
<dateIssued encoding="w3cdtf">2006-06-06</dateIssued>
<dateCaptured encoding="w3cdtf">2005-06-17</dateCaptured>
<dateValid encoding="w3cdtf">2005-09-09</dateValid>
<copyrightDate encoding="w3cdtf">2006</copyrightDate>
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<languageTerm type="code" authority="rfc3066">en</languageTerm>
<languageTerm type="code" authority="iso639-2b">eng</languageTerm>
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<extent unit="references">19</extent>
<extent unit="words">3010</extent>
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<abstract lang="en">Pathogenic PINK1 mutations have been described in PARK6‐linked Parkinson's disease (PD) patients of Asian origin. However, data on the frequency of PINK1 mutations in sporadic early‐onset Parkinson's disease (EOPD) Asian patients are lacking. The objectives of this study were to report the frequency of PINK1 mutations of sporadic EOPD in an Asian cohort comprising of ethnic Chinese, Malays, and Indians, and to highlight a PINK1‐positive patient who presented with restless legs symptoms. Eighty consecutive sporadic EOPD patients from the movement disorder clinics of two major tertiary institutions in the country were included. We performed sequence analysis of all the coding and exon–intron junctions of the PINK1 using specific primer sets. In addition, we genotyped polymorphisms detected from the analysis in a group of sporadic PD patients and controls. Three different mutations (two homozygous nonsense and one heterozygous missense) in the putative kinase domain were found in three patients, giving a 3.7% frequency of PINK1 mutations in our EOPD cohort. All the mutations were absent in 200 healthy controls. One patient with a novel homozygous nonsense PINK1 mutation presented unusually with restless legs symptoms. Separately, analysis of the frequency of four PINK1 polymorphisms in a group of sporadic PD and controls did not reveal any significant differences. We highlight a 3.7% frequency of PINK1 mutations in an Asian cohort (ethnic Chinese, Malay, and Indian) of EOPD. The phenotypic spectrum associated with PINK1‐positive patients may be wider than previously reported. Polymorphisms of PINK1 do not appear to modulate risk of PD in our population. © 2006 Movement Disorder Society</abstract>
<note type="funding">National Medical Research Council and Biomedical Research Council of Singapore</note>
<note type="funding">SingHealth</note>
<subject lang="en">
<genre>Keywords</genre>
<topic>PINK1</topic>
<topic>restless legs syndrome</topic>
<topic>mutation</topic>
<topic>Parkinson's disease</topic>
</subject>
<relatedItem type="host">
<titleInfo>
<title>Movement Disorders</title>
</titleInfo>
<titleInfo type="abbreviated">
<title>Mov. Disord.</title>
</titleInfo>
<genre type="Journal">journal</genre>
<subject>
<genre>article category</genre>
<topic>Research Article</topic>
</subject>
<identifier type="ISSN">0885-3185</identifier>
<identifier type="eISSN">1531-8257</identifier>
<identifier type="DOI">10.1002/(ISSN)1531-8257</identifier>
<identifier type="PublisherID">MDS</identifier>
<part>
<date>2006</date>
<detail type="volume">
<caption>vol.</caption>
<number>21</number>
</detail>
<detail type="issue">
<caption>no.</caption>
<number>6</number>
</detail>
<extent unit="pages">
<start>789</start>
<end>793</end>
<total>5</total>
</extent>
</part>
</relatedItem>
<identifier type="istex">225911185FD88696B492DB89EFE16A75594682EE</identifier>
<identifier type="DOI">10.1002/mds.20810</identifier>
<identifier type="ArticleID">MDS20810</identifier>
<accessCondition type="use and reproduction" contentType="copyright">Copyright © 2006 Movement Disorder Society</accessCondition>
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<recordOrigin>Wiley Subscription Services, Inc., A Wiley Company</recordOrigin>
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</metadata>
<serie></serie>
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