O'Connor, A;
Abel, E;
Fraser, MR;
Ryan, NS;
Jiménez, DA;
Koriath, C;
Chávez-Gutiérrez, L;
... Fox, NC; + view all
(2021)
A novel presenilin 1 duplication mutation (Ile168dup) causing Alzheimer's disease associated with myoclonus, seizures and pyramidal features.
Neurobiology of Aging
, 103
137.e1-137.e5.
10.1016/j.neurobiolaging.2021.01.032.
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Abstract
Mutations in the Presenilin 1 (PSEN1) gene are the most common cause of autosomal dominant familial Alzheimer's disease. We report the clinical, imaging and postmortem findings of kindred carrying a novel duplication mutation (Ile168dup) in the PSEN1 gene. We interpret the pathogenicity of this novel variant and discuss the additional neurological features (pyramidal dysfunction, myoclonus and seizures) that accompanied cognitive decline. This report broadens the clinical phenotype of PSEN1 insertion mutations while also highlighting the importance of considering duplication, insertion and deletion mutations in cases of young onset dementia.
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