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[Genetic predisposition for Alzheimer's disease]
M Staufenbiel1, E Pombo-Villar
1Sandoz Pharma AG, Basel.
Therapeutische Umschau. Revue Therapeutique
|December 1, 1995
Summary
Alzheimer's disease has diverse causes, with genetic mutations identified in early-onset forms. Late-onset Alzheimer's risk is linked to factors like apolipoprotein E epsilon 4, but genetic testing is limited.
Area of Science:
- Neurology
- Genetics
- Gerontology
Context:
- Alzheimer's disease presents as senile and presenile dementia.
- Family history of dementia increases disease incidence.
- Heterogeneous etiology shares common clinical and pathological features.
Purpose:
- To explore the genetic underpinnings of Alzheimer's disease.
- To differentiate between early-onset and late-onset forms.
- To identify genetic risk factors and their diagnostic implications.
Summary:
- Early-onset Alzheimer's disease linked to autosomal dominant mutations in three genes.
- Late-onset Alzheimer's dementia lacks dominant hereditary factors but has genetic risk factors.
- Apolipoprotein E allele epsilon 4 is a confirmed genetic risk factor for late-onset Alzheimer's.
Impact:
- Genetic testing currently aids prognosis only for early-onset Alzheimer's.
- Highlights the need for further research into late-onset genetic factors.
- Informs understanding of Alzheimer's disease heterogeneity and genetic contributions.