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Vascular factors and mitochondrial dysfunction: a central role in the pathogenesis of Alzheimer's disease

Daniele Orsucci1, Michelangelo Mancuso, Elena Caldarazzo Ienco

  • 1Department of Neuroscience, Neurological Clinic, University of Pisa, Via Roma 67, 56126 Pisa, Italy. d.orsucci@sssup.it

Current Neurovascular Research
|November 16, 2012
PubMed

Insights

Alzheimer's disease (AD) pathogenesis involves complex vascular factors and mitochondrial dysfunction. This review explores the link between vascular issues and mitochondrial problems in AD, highlighting their role in disease development.

Area of Science:

  • Neurology
  • Genetics
  • Pathophysiology

Background:

  • Alzheimer's disease (AD) pathogenesis is multifactorial, with genetics playing a role in a minority of cases.
  • Vascular risk factors like atherosclerosis and stroke are increasingly linked to AD development.
  • Oxidative damage and mitochondrial dysfunction are implicated, but their precise role in AD onset versus consequence is debated.

Purpose of the Study:

  • To review the connection between vascular factors and mitochondrial dysfunction in Alzheimer's disease pathogenesis.
  • To explore how vascular issues may initiate or exacerbate AD pathology.
  • To synthesize current evidence on the interplay between cerebrovascular health and cellular energy metabolism in AD.

Main Methods:

  • Literature review of studies investigating Alzheimer's disease, vascular factors, and mitochondrial dysfunction.
  • Analysis of genetic associations, including the apolipoprotein E gene.
  • Examination of evidence linking chronic hypoperfusion to oxidative stress and mitochondrial impairment.

Main Results:

  • Apolipoprotein E gene is a significant vascular susceptibility factor in sporadic late-onset AD.
  • Chronic hypoperfusion may trigger mitochondrial dysfunction in vascular cells.
  • Mitochondrial dysfunction can enhance reactive oxygen species production, potentially contributing to AD pathology.

Conclusions:

  • Vascular factors are critically involved in Alzheimer's disease pathogenesis.
  • Mitochondrial dysfunction, potentially triggered by vascular issues, plays a key role in AD.
  • Understanding the vascular-mitochondrial link is crucial for developing effective AD therapies.

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