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Related Experiment Videos

Frontotemporal dementia--a brief review.

Magnus Sjögren1, Christian Andersen

  • 1Department of Experimantal Geriatrics, Neurotec, Karolinska Institute, Huddinge, Sweden. magnus.sjogren@organon.com

Mechanisms of Ageing and Development
|December 7, 2005
PubMed
Summary

Frontotemporal dementia (FTD) is a costly neurodegenerative disease with behavioral and language symptoms. While causes are often unknown, genetic mutations like those in the tau gene are implicated in hereditary forms, and treatments focus on symptom management.

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Area of Science:

  • Neurology
  • Neuroscience
  • Genetics

Background:

  • Frontotemporal dementia (FTD) is a significant cause of presenile and senile dementia, characterized by substantial healthcare costs due to severe symptoms.
  • Clinical manifestations include personality changes, disinhibition, impulsiveness, and neurological signs like parkinsonism and gait disturbances.
  • FTD subtypes include frontal and temporal variants, with pathological classifications encompassing Pick's disease, frontotemporal lobar degeneration, and others.

Purpose of the Study:

  • To summarize the clinical, syndromic, and pathological classifications of Frontotemporal Dementia (FTD).
  • To review the genetic underpinnings of FTD, including sporadic and hereditary forms.
  • To discuss current treatment strategies for FTD, focusing on symptomatic relief.

Main Methods:

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  • Literature review of clinical presentations, diagnostic criteria, and pathological findings in FTD.
  • Analysis of genetic studies identifying mutations associated with hereditary FTD (e.g., tau gene, chromosome 3, 9, presenilin-1).
  • Review of therapeutic interventions targeting behavioral and neurological symptoms of FTD.

Main Results:

  • FTD presents with diverse behavioral and language symptoms, often complicated by motor deficits.
  • Pathological subtypes include Pick's disease, corticobasal degeneration, and progressive supranuclear palsy.
  • Hereditary FTD is linked to mutations in genes such as tau (in FTDP-17), and sporadic FTD causes are often unknown.
  • Current treatment focuses on managing symptoms, with serotonergic drugs showing efficacy for behavioral disturbances.

Conclusions:

  • FTD is a complex neurodegenerative disorder with varied clinical and pathological presentations.
  • Genetic factors play a role in FTD, particularly in hereditary forms.
  • Symptomatic treatment, including the use of serotonergic agents for behavioral symptoms, is the current therapeutic approach.