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Alzheimer's Disease (AD) is a continually advancing neurodegenerative disorder, distinguished by escalating memory loss, cognitive dysfunction, and dementia. The disease unfolds in three stages: preclinical, mild cognitive impairment (MCI), and dementia. Its onset is insidious, and the progression gradual, with the cause not well explained by other disorders.
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Mitochondrial dysfunction in Alzheimer's disease.

Maria Clara Bila D'Alessandro1, Salim Kanaan2, Mauro Geller3

  • 1Universidade Federal Fluminense, Faculty of Medicine, Desembargador Athayde Parreiras road 100, Niterói, Rio de Janeiro, Brazil.

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Mitochondrial dysfunction, not just amyloid plaques, is key in Alzheimer's disease (AD) progression. Addressing mitochondrial health may offer new therapeutic targets for this neurodegenerative condition.

Keywords:
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Area of Science:

  • Neuroscience
  • Cell Biology
  • Pathology

Background:

  • Alzheimer's disease (AD) is a progressive neurodegenerative disorder with no cure.
  • Cognitive decline and apathy are early AD symptoms.
  • Amyloid-β plaques and tau tangles are traditional research focuses.

Purpose of the Study:

  • To review the role of mitochondrial dysfunction in AD pathogenesis.
  • To explore mitochondrial dysfunction as a biomarker and therapeutic target for AD.

Main Methods:

  • Literature review of studies on Alzheimer's disease and mitochondrial function.
  • Analysis of cellular consequences of mitochondrial impairment in AD.

Main Results:

  • Mitochondrial dysfunction is central to AD pathogenesis.
  • Impaired mitochondria lead to oxidative stress, metabolic disturbances, and calcium dysregulation.
  • These abnormalities drive neurodegeneration in AD.

Conclusions:

  • Mitochondrial dysfunction plays a critical role in AD onset and progression.
  • Targeting mitochondrial pathways presents a promising therapeutic strategy for AD.
  • Mitochondrial dysfunction may serve as a valuable biomarker for AD.