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Familial early onset frontotemporal dementia caused by a novel S356T MAPT mutation, initially diagnosed as schizophrenia

Momeni, Parastoo, Wickremaratchi, Mirdhu, Bell, Jason, Arnold, Richard, Beer, Roger, Hardy, John, Revesz, Tamas, Neal, James William and Morris, Huw Rees 2010. Familial early onset frontotemporal dementia caused by a novel S356T MAPT mutation, initially diagnosed as schizophrenia. Clinical Neurology and Neurosurgery 112 (10) , pp. 917-920. 10.1016/j.clineuro.2010.07.015

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Abstract

Autosomal dominant frontotemporal dementia (FTD) due to mutations in the MAPT gene is referred to as FTD with parkinsonism linked to chromosome 17 with tau pathology (FTDP-17T). Typically the disease begins in the sixth decade of life. We report a novel exon 12 mutation in MAPT (S356T), in a family with an exceptionally early age at onset (27 and 29 years), causing familial behavioural variant frontotemporal dementia. Both the proband and the proband's father were initially diagnosed as having schizophrenia. Pathological examination showed frontotemporal lobar degeneration with extensive neuronal and glial tau deposition. This mutation is one of a small group of MAPT mutations (including P301S, G335V and S352L) that cause very early onset FTDP-17T. It is likely that the early age at onset reflects a marked pathogenic effect of the mutation involving a disturbance of microtubule binding, tau phosphorylation or a major acceleration of tau aggregation.

Item Type: Article
Date Type: Publication
Status: Published
Schools: Medicine
Subjects: R Medicine > RC Internal medicine > RC0321 Neuroscience. Biological psychiatry. Neuropsychiatry
Uncontrolled Keywords: Tau; MAPT; Frontotemporaldementia; Earlyonsetdementia
Publisher: Elsevier
ISSN: 0303-8467
Last Modified: 10 Oct 2017 14:06
URI: http://orca.cf.ac.uk/id/eprint/24179

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