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  • Clinical exome sequencing in dementias : a preliminary study
    Zalar, Bojan, 1956- ...
    Background: Dementias are clinically and genetically heterogeneous group of neurodegenerative disorders. Often, dementias with genetic etiology are clinically indistinguishable from non-genetic ones. ... The aim of this retrospective study was to evalua te the yield of clinical exome sequencing in dementias, potentially associated with monogenic genetic predisposition. Subjects and methods: For this purpose 20 consecutive patients younger than 65 years were studied in the period from January 2014 to December 2017; 14 with the diagnosis of Frontotemporal dementia (FTD), 3 with early-onset Alzheimer disease (EOAD) and 3 with unspecified dementia. In addition to clinical exome sequencing including 57 genes associated with dementia, C9orf72 hexanucleotide expansion as tested in all patients. Results: We found genetic etiology in 6 patients: 2 mutations in the PSEN1 gene (p.Pro264Ser and p.Phe105Cys) in the EOAD patients, C9orf72 expansion and MAPT (c.1920+16C>T), mutation in the FTD group of patients as well as MAPT (c.1920+16C>T) mutation and likely pathogenic mutation in the TYROBP mutation (p.Asp32Asn) in patients with unspecified diagnosis. Conclusions: Our preliminary results imply significant diagnostic yield in identifying rare genetic causes of dementia, combining comprehensive clinical exome sequencing and targeted C9orf72 expansion testing.
    Vir: Psychiatria Danubina : an international multidisciplinary journal = eine internationale Zeitschrift. - ISSN 0353-5053 (Vol. 30, no. 2, 2018, str. 216-219)
    Vrsta gradiva - članek, sestavni del
    Leto - 2018
    Jezik - angleški
    COBISS.SI-ID - 33824729

    Povezava(-e):

    http://www.psychiatria-danubina.com/UserDocsImages/pdf/dnb_vol30_no2/dnb_vol30_no2_216.pdf
    DOI

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