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Braunisch, M.C.* ; Gallwitz, H.* ; Abicht, A.* ; Diebold, I.* ; Holinski-Feder, E.* ; van Maldergem, L.* ; Lammens, M.* ; Kovács-Nagy, R.* ; Alhaddad, B.* ; Strom, T.M. ; Meitinger, T. ; Senderek, J.* ; Rudnik-Schöneborn, S.* ; Haack, T.B.

Extension of the phenotype of biallelic loss-of-function mutations in SLC25A46 to the severe form of pontocerebellar hypoplasia type I.

Clin. Genet. 93, 255-265 (2017)
DOI PMC
Open Access Green möglich sobald Postprint bei der ZB eingereicht worden ist.
Biallelic mutations in SLC25A46, encoding a modified solute transporter involved in mitochondrial dynamics, have been identified in a wide range of conditions such as hereditary motor and sensory neuropathy with optic atrophy type VIB (OMIM: *610826) and congenital lethal pontocerebellar hypoplasia (PCH). To date, 18 patients from 13 families have been reported, presenting with the key clinical features of optic atrophy, peripheral neuropathy, and cerebellar atrophy. The course of the disease was highly variable ranging from severe muscular hypotonia at birth and early death to first manifestations in late childhood and survival into the fifties. Here we report on 4 patients from 2 families diagnosed with PCH who died within the first month of life from respiratory insufficiency. Patients from 1 family had pathoanatomically proven spinal motor neuron degeneration (PCH1). Using exome sequencing, we identified biallelic disease-segregating loss-of-function mutations in SLC25A46 in both families. Our study adds to the definition of the SLC25A46-associated phenotypic spectrum that includes neonatal fatalities due to PCH as the severe extreme.
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Publikationstyp Artikel: Journalartikel
Dokumenttyp Wissenschaftlicher Artikel
Schlagwörter Biallelic Loss-of-function Mutations ; Exome Sequencing ; Pontocerebellar Hypoplasia ; Slc25a46; Optic Atrophy; Axonal Neuropathy; Deficiency; Diagnosis; Disease; Protein; Ataxia
Sprache englisch
Veröffentlichungsjahr 2017
HGF-Berichtsjahr 2017
ISSN (print) / ISBN 0009-9163
e-ISSN 1399-0004
Zeitschrift Clinical Genetics
Quellenangaben Band: 93, Heft: 2, Seiten: 255-265 Artikelnummer: , Supplement: ,
Verlag Wiley
Verlagsort Hoboken
Begutachtungsstatus Peer reviewed
POF Topic(s) 30501 - Systemic Analysis of Genetic and Environmental Factors that Impact Health
Forschungsfeld(er) Genetics and Epidemiology
PSP-Element(e) G-500700-001
Scopus ID 85033497376
PubMed ID 28653766
Erfassungsdatum 2017-11-23