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familial Alzheimer's disease (FAD)

Pathology: - pathology begins > 20 years before clinical symptoms develop [2] Genetics: - 7 different genetic loci have been associated with familial forms of Alzheimer's disease (see genetics of Alzheimer's disease) - individuals with Down's syndrome (trisomy 21) invariably develop early Alzheimer's disease Clinical manifestations: - 38% of early-onset cases may present without memory impairment - may presnet with behavioral, executive function, visuospatial, or language problems [1] Laboratory: - presenilin-1 gene (PCR?) only available test

Interactions

disease interactions

Related

early-onset Alzheimer's disease genetics of Alzheimer's disease

Specific

familial Alzheimer's disease type 1 (FAD1), APP associated familial Alzheimer's disease type 2 (FAD2), apo E4 associated familial Alzheimer's disease type 3 (FAD3), AD3 locus/presenilin-1 mutation associated familial Alzheimer's disease type 4 (FAD4), AD4 locus/presenilin-2 mutation associated familial Alzheimer's disease type 5 (FAD5), chromosome 12 associated familial Alzheimer's disease type 6 (FAD6), chromosome 10q associated familial Alzheimer's disease type 7 (FAD7), chromosome 10p associated familial Alzheimer's disease type 8 (FAD8) familial Alzheimer's disease with coexisting amyloid & prion pathology, early onset familial Alzheimer's disease with mitochondrial mutation

General

Alzheimer's disease (AD) genetic disease of the central nervous system

References

  1. Balasa M et al Clinical features and APOE genotype of pathologically proven early-onset Alzheimer disease Neurology May 17, 2011 76:1720-1725 PMID: 21576687 http://www.neurology.org/content/76/20/1720.abstract
  2. Bateman RJ et al. Clinical and biomarker changes in dominantly inherited Alzheimer's disease. N Engl J Med 2012 Jul 12 PMID: 22784036 http://www.nejm.org/doi/full/10.1056/NEJMoa1202753