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Open Access Green möglich sobald Postprint bei der ZB eingereicht worden ist.
Whole-exome sequencing in patients with inherited neuropathies: Outcome and challenges.
J. Neurol. 261, 970-982 (2014)
Inherited peripheral neuropathies (IPN) are one of the most frequent inherited causes of neurological disability characterized by considerable phenotypic and genetic heterogeneity. Based on clinical and electrophysiological properties, they can be subdivided into three main groups: HMSN, dHMN, and HSN. At present, more than 50 IPN genes have been identified. Still, many patients and families with IPN have not yet received a molecular genetic diagnosis because clinical genetic testing usually only covers a subset of IPN genes. Moreover, a considerable proportion of IPN genes has to be identified. Here we present results of WES in 27 IPN patients excluded for mutations in many known IPN genes. Eight of the patients received a definite diagnosis. While six of these patients carried bona fide pathogenic mutations in known IPN genes, two patients had mutations in genes known to be involved in other types of neuromuscular disorders. A further group of eight patients carried sequence variations in IPN genes that could not unequivocally be classified as pathogenic. In addition, combining data of WES and linkage analysis identified SH3BP4, ITPR3, and KLHL13 as novel IPN candidate genes. Moreover, there was evidence that particular mutations in PEX12, a gene known to cause Zellweger syndrome, could also lead to an IPN phenotype. We show that WES is a useful tool for diagnosing IPN and we suggest an expanded phenotypic spectrum of some genes involved in other neuromuscular and neurodegenerative disorders. Nevertheless, interpretation of variants in known and potential novel disease genes has remained challenging.
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Publikationstyp
Artikel: Journalartikel
Dokumenttyp
Wissenschaftlicher Artikel
Schlagwörter
Cmt ; Dhmn ; Hmsn ; Ipn ; Wes; Marie-tooth-disease; Transfer-rna Synthetase; Hereditary Motor Neuropathy; Juvenile-onset Glaucoma; Axonal Neuropathy; Cerebrotendinous Xanthomatosis; Mfn2 Mutations; Dctn1 Gene; Mutant; Acid
ISSN (print) / ISBN
0340-5354
e-ISSN
1432-1459
Zeitschrift
Journal of Neurology
Quellenangaben
Band: 261,
Heft: 5,
Seiten: 970-982
Verlag
Springer
Verlagsort
Heidelberg
Nichtpatentliteratur
Publikationen
Begutachtungsstatus
Peer reviewed
Institut(e)
Institute of Human Genetics (IHG)