Alzheimer disease-like clinical phenotype in a family with FTDP-17 caused by a MAPT R406W mutation

S.G. Lindquist, I.E. Holm, M. Schwartz, I. Law, J. Stokholm, M. Batbayli, Gunhild Waldemar, J.E. Nielsen

    57 Citationer (Scopus)

    Abstract

    We report clinical, molecular, neuroimaging and neuropathological features of a Danish family with autosomal dominant inherited dementia, a clinical phenotype resembling Alzheimer's disease and a pathogenic mutation (R406W) in the microtubule associated protein tau (MAPT) gene. Pre-symptomatic and affected family members underwent multidisciplinary (clinical, molecular, neuroimaging and neuropathological) examinations. Treatment with memantine in a family member with early symptoms, based on the clinical phenotype and the lack of specific treatment, appears to stabilize the disease course and increase the glucose metabolism in cortical and subcortical areas, as determined by serial [F(18)]FDG-PET scanning before and after initiation of treatment. Neuropathological examination of a second affected and mutation-positive family member showed moderate atrophy of the temporal lobes including the hippocampi. Microscopy revealed abundant numbers of tau-positive neurofibrillary tangles in all cortical areas and in some brainstem nuclei corresponding to a diagnosis of frontotemporal lobe degeneration on the basis of a MAPT mutation. The clinical and genetic heterogeneity of autosomal dominant inherited dementia must be taken into account in the genetic counselling and genetic testing of families with autosomal dominantly inherited dementia in general
    Udgivelsesdato: 2008/4
    OriginalsprogEngelsk
    TidsskriftEuropean Journal of Neurology
    Vol/bind15
    Udgave nummer4
    Sider (fra-til)377-385
    Antal sider8
    ISSN1351-5101
    DOI
    StatusUdgivet - 2008

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