Dec 19, 2008

Role of MAPT mutations and haplotype in frontotemporal lobar degeneration in Northern Finland

BMC Neurology
Anna-Lotta KaivorinneA M Remes

Abstract

Frontotemporal lobar degeneration (FTLD) consists of a clinically and neuropathologically heterogeneous group of syndromes affecting the frontal and temporal lobes of the brain. Mutations in microtubule-associated protein tau (MAPT), progranulin (PGRN) and charged multi-vesicular body protein 2B (CHMP2B) are associated with familial forms of the disease. The prevalence of these mutations varies between populations. The H1 haplotype of MAPT has been found to be closely associated with tauopathies and with sporadic FTLD. Our aim was to investigate MAPT mutations and haplotype frequencies in a clinical series of patients with FTLD in Northern Finland. MAPT exons 1, 2 and 9-13 were sequenced in 59 patients with FTLD, and MAPT haplotypes were analysed in these patients, 122 patients with early onset Alzheimer's disease (eoAD) and 198 healthy controls. No pathogenic mutations were found. The H2 allele frequency was 11.0% (P = 0.028) in the FTLD patients, 9.8% (P = 0.029) in the eoAD patients and 5.3% in the controls. The H2 allele was especially clustered in patients with a positive family history (P = 0.011) but did not lower the age at onset of the disease. The ApoE4 allele frequency was significantly increased in the patients with...Continue Reading

  • References38
  • Citations17

Citations

Mentioned in this Paper

Prevalence Studies
Senile Paranoid Dementia
GRN gene
Familial Alzheimer Disease (FAD)
Tauopathies
Alzheimer Disease, Early Onset
Abnormal Degeneration
Apolipoprotein E4
Exons
Pathogenic Organism

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