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14-3-3 zeta and tau genes interactively decrease Alzheimer's disease risk.

Ignacio Mateo1, Pascual Sánchez-Juan, Eloy Rodríguez-Rodríguez

  • 1Neurology Service and Centro de Investigación Biomédica en Red sobre Enfermedades Neurodegenerativas (CIBERNED), Marqués de Valdecilla University Hospital, University of Cantabria, Santander, Spain.

Dementia and Geriatric Cognitive Disorders
|March 6, 2008
PubMed
Summary
This summary is machine-generated.

Genetic variations in 14-3-3 zeta and tau genes may influence Alzheimer's disease (AD) risk. Specific combined genotypes were associated with a significantly lower risk of developing AD.

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Area of Science:

  • Neuroscience
  • Genetics
  • Pathology

Background:

  • Abnormal tau hyperphosphorylation is a key factor in Alzheimer's disease (AD) neurofibrillary tangles.
  • 14-3-3 zeta protein interacts with tau and promotes its phosphorylation, implicating it in AD pathogenesis.

Purpose of the Study:

  • To investigate the combined gene effects of 14-3-3 zeta and tau polymorphisms on Alzheimer's disease susceptibility.
  • To determine if specific genotype combinations influence the risk of developing AD.

Main Methods:

  • A case-control study involving 293 AD patients and 396 healthy controls.
  • Analysis of the 14-3-3 zeta (intron 4, rs 983583) and tau (intron 9, rs 2471738) polymorphisms.

Main Results:

  • Individuals with the combined 14-3-3 zeta AA and tau CC genotypes showed a 2.5-fold reduced risk of AD (OR = 0.4, p = 0.016).
  • This suggests a protective effect of these specific combined genotypes against AD development.

Conclusions:

  • Synergistic gene effects between 14-3-3 zeta and tau polymorphisms may play a role in Alzheimer's disease risk.
  • Identifying such genetic interactions can aid in developing risk profiles for AD.