The effects of APOE and tau gene variability on risk of frontotemporal dementia

Neurobiol Aging. 2006 May;27(5):702-9. doi: 10.1016/j.neurobiolaging.2005.03.008.

Abstract

Frontotemporal dementia (FTD) is a complex dementing syndrome whose genetic/non genetic risk factors are mostly unknown. Aim of the present work was to investigate whether APOE and/or tau gene variability does affect the risk of FTD. A sample of FTD cases (sporadic: n = 54; familial: n = 46, one subject per family) was collected in a genetically homogeneous population (Calabria, southern Italy) and analyzed in comparison with an age- and sex-matched control group (n = 180) extracted from the same population. Logistic regression analysis showed that APOE gene variability affects the probability of disease, with allele epsilon4 increasing (exp(beta1) = 2.68 with [1.51-4.76] 95% confidence interval; p = 0.001) and allele epsilon2 decreasing (exp(beta1) = 0.28 with [0.12-0.66] 95% confidence interval; p = 0.003) the risk of FTD. On the contrary, tau gene variability was ineffectual (exp(beta1) non significantly different from 1 for either H1 or H2 haplotypes), although a small effect was observed by the H1 haplotype in increasing the protective effect of the epsilon2 allele (p = 0.007).

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Adult
  • Aged
  • Aged, 80 and over
  • Apolipoproteins E / genetics*
  • Brain / pathology
  • DNA / genetics
  • DNA Mutational Analysis
  • Dementia / genetics*
  • Dementia / pathology
  • Dementia / psychology
  • Female
  • Genetic Variation
  • Haplotypes
  • Humans
  • Logistic Models
  • Male
  • Middle Aged
  • Neuropsychological Tests
  • Risk
  • tau Proteins / genetics*

Substances

  • Apolipoproteins E
  • tau Proteins
  • DNA