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29.06.2017 | Short Communication

Rare causes of early-onset dystonia-parkinsonism with cognitive impairment: a de novo PSEN-1 mutation

verfasst von: Miryam Carecchio, Marina Picillo, Lorella Valletta, Antonio E. Elia, Tobias B. Haack, Autilia Cozzolino, Annalisa Vitale, Barbara Garavaglia, Arcangela Iuso, Caterina F. Bagella, Sabina Pappatà, Paolo Barone, Holger Prokisch, Luigi Romito, Valeria Tiranti

Erschienen in: Neurogenetics | Ausgabe 3/2017

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Abstract

Mutations in PSEN1 are responsible for familial Alzheimer’s disease (FAD) inherited as autosomal dominant trait, but also de novo mutations have been rarely reported in sporadic early-onset dementia cases. Parkinsonism in FAD has been mainly described in advanced disease stages. We characterized a patient presenting with early-onset dystonia-parkinsonism later complicated by dementia and myoclonus. Brain MRI showed signs of iron accumulation in the basal ganglia mimicking neurodegeneration with brain iron accumulation (NBIA) as well as fronto-temporal atrophy. Whole exome sequencing revealed a novel PSEN1 mutation and segregation within the family demonstrated the mutation arose de novo.

We suggest considering PSEN1 mutations in cases of dystonia-parkinsonism with positive DAT-Scan, later complicated by progressive cognitive decline and cortical myoclonus even without a dominant family history.

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Titel: Rare causes of early-onset dystonia-parkinsonism with cognitive impairment: a de novo PSEN-1 mutation
verfasst von: Miryam Carecchio
Marina Picillo
Lorella Valletta
Antonio E. Elia
Tobias B. Haack
Autilia Cozzolino
Annalisa Vitale
Barbara Garavaglia
Arcangela Iuso
Caterina F. Bagella
Sabina Pappatà
Paolo Barone
Holger Prokisch
Luigi Romito
Valeria Tiranti
Publikationsdatum: 29.06.2017
Verlag: Springer Berlin Heidelberg
Erschienen in: Neurogenetics / Ausgabe 3/2017
Print ISSN: 1364-6745
Elektronische ISSN: 1364-6753
DOI: https://doi.org/10.1007/s10048-017-0518-4

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Rare causes of early-onset dystonia-parkinsonism with cognitive impairment: a de novo PSEN-1 mutation

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Abstract

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