Movement Disorders (revue)

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VPS35 mutation in Japanese patients with typical Parkinson's disease.

Identifieur interne : 000B59 ( Main/Exploration ); précédent : 000B58; suivant : 000B60

VPS35 mutation in Japanese patients with typical Parkinson's disease.

Auteurs : Maya Ando [Japon] ; Manabu Funayama ; Yuanzhe Li ; Kenichi Kashihara ; Yoshitake Murakami ; Nobutaka Ishizu ; Chizuko Toyoda ; Katsuhiko Noguchi ; Takashi Hashimoto ; Naoki Nakano ; Ryogen Sasaki ; Yasumasa Kokubo ; Shigeki Kuzuhara ; Kotaro Ogaki ; Chikara Yamashita ; Hiroyo Yoshino ; Taku Hatano ; Hiroyuki Tomiyama ; Nobutaka Hattori

Source :

RBID : pubmed:22991136

English descriptors

Abstract

Vacuolar protein sorting 35 (VPS35) was recently reported to be a pathogenic gene for late-onset autosomal dominant Parkinson's disease (PD), using exome sequencing. To date, VPS35 mutations have been detected only in whites with PD. The aim of the present study was to determine the incidence and clinical features of Asian PD patients with VPS35 mutations. We screened 7 reported nonsynonymous missense variants of VPS35, including p.D620N, known as potentially disease-associated variants of PD, in 300 Japanese index patients with autosomal dominant PD and 433 patients with sporadic PD (SPD) by direct sequencing or high-resolution melting (HRM) analysis. In addition, we screened 579 controls for the p.D620N mutation by HRM analysis. The p.D620N mutation was detected in 3 patients with autosomal dominant PD (1.0%), in 1 patient with SPD (0.23%), and in no controls. None of the other reported variants of VPS35 were detected. Haplotype analysis suggested at least 3 independent founders for Japanese patients with p.D620N mutation. Patients with the VPS35 mutation showed typical tremor-predominant PD. We report Asian PD patients with the VPS35 mutation. Although VPS35 mutations are uncommon in PD, the frequency of such mutation is relatively higher in Japanese than reported in other populations. In VPS35, p.D620N substitution may be a mutational hot spot across different ethnic populations. Based on the clinical features, VPS35 should be analyzed in patients with PD, especially autosomal dominant PD or tremor-predominant PD.

DOI: 10.1002/mds.25145
PubMed: 22991136


Affiliations:


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Le document en format XML

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<name sortKey="Kashihara, Kenichi" sort="Kashihara, Kenichi" uniqKey="Kashihara K" first="Kenichi" last="Kashihara">Kenichi Kashihara</name>
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<front>
<div type="abstract" xml:lang="en">Vacuolar protein sorting 35 (VPS35) was recently reported to be a pathogenic gene for late-onset autosomal dominant Parkinson's disease (PD), using exome sequencing. To date, VPS35 mutations have been detected only in whites with PD. The aim of the present study was to determine the incidence and clinical features of Asian PD patients with VPS35 mutations. We screened 7 reported nonsynonymous missense variants of VPS35, including p.D620N, known as potentially disease-associated variants of PD, in 300 Japanese index patients with autosomal dominant PD and 433 patients with sporadic PD (SPD) by direct sequencing or high-resolution melting (HRM) analysis. In addition, we screened 579 controls for the p.D620N mutation by HRM analysis. The p.D620N mutation was detected in 3 patients with autosomal dominant PD (1.0%), in 1 patient with SPD (0.23%), and in no controls. None of the other reported variants of VPS35 were detected. Haplotype analysis suggested at least 3 independent founders for Japanese patients with p.D620N mutation. Patients with the VPS35 mutation showed typical tremor-predominant PD. We report Asian PD patients with the VPS35 mutation. Although VPS35 mutations are uncommon in PD, the frequency of such mutation is relatively higher in Japanese than reported in other populations. In VPS35, p.D620N substitution may be a mutational hot spot across different ethnic populations. Based on the clinical features, VPS35 should be analyzed in patients with PD, especially autosomal dominant PD or tremor-predominant PD.</div>
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