Prevalence of pathogenic mutations in an Italian clinical series of patients with familial dementia.

Abstract excerpt

Genetic factors are involved in the aetiology of dementias. Three genes have been identified which, when mutated, cause Familial Alzheimer disease (FAD): the presenilin-1 (PS1), the presenilin-2 (PS2) and the amyloid precursor protein (APP) genes. Together, these mutations are responsible for 30-50% of the cases with autosomal dominant Alzheimer disease (AD), and for about 5% of all AD cases. While over 130...

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