Human Genetics

, Volume 95, Issue 1, pp 39–42 | Cite as

Apolipoprotein E (apoE) polymorphism and its influence on ApoE concentrations in the cerebrospinal fluid in Finnish patients with Alzheimer's disease

  • Terho Lehtimäki
  • Tuula Pirttilä
  • Pankaj D. Mehta
  • Henryk M. Wisniewski
  • Harry Frey
  • Tapio Nikkari
Original Investigation


The apoE phenotype of 83 patients with probable Alzheimer's disease (AD) and of 164 non-demented controls was determined by isoelectric focusing and Western blotting. The proportion of the e4 allele was 0.548 in AD and 0.202 in controls (P<0.0001). The effect was seen in both early-onset and late-onset AD patients. The risk of AD in ɛ4 homozygotes was 18-fold greater than in individuals without the ɛ4 allele. ApoE concentrations were measured in serum and cerebrospinal fluid (CSF) from a subgroup of patients with AD (n=72) and controls (n=84) by a sandwich enzyme-linked immunosorbent assay. Although serum apoE concentrations were lower in individuals with the ɛ4 allele than in those without the e4 allele, CSF apoE concentrations did not vary in different phenotype groups. However, CSF apoE levels were lower in AD patients than in controls. We conclude that the inheritance of the ɛ4 allele of apoE is a risk factor for AD in the Finnish population.


Cerebrospinal Fluid Finnish Population apoE Level Phenotype Group Finnish Patient 
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Copyright information

© Springer-Verlag 1995

Authors and Affiliations

  • Terho Lehtimäki
    • 1
    • 2
  • Tuula Pirttilä
    • 3
    • 4
  • Pankaj D. Mehta
    • 3
  • Henryk M. Wisniewski
    • 3
  • Harry Frey
    • 4
  • Tapio Nikkari
    • 1
  1. 1.Department of Biomedical SciencesUniversity of TampereTampereFinland
  2. 2.Department of Clinical ChemistryTampere University HospitalTampereFinland
  3. 3.Institute for Basic Research in Developmental DisabilitiesStaten IslandUSA
  4. 4.Department of NeurologyTampere University HospitalTampereFinland

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