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Oxidative stress in neurodegeneration

Varsha Shukla1, Santosh K Mishra, Harish C Pant

  • 1Laboratory of Neurochemistry, National Institute of Neurological Disorders and Stroke, National Institutes of Health, Bethesda, MD 20892, USA.

Advances in Pharmacological Sciences
|September 24, 2011
PubMed

Insights

Oxidative stress, driven by reactive oxygen species (ROS) from mitochondria, is central to neurodegenerative diseases. This review explores its role in Alzheimer's, Parkinson's, and other conditions, linking it to Cdk5 hyperactivity.

Area of Science:

  • Neuroscience
  • Biochemistry
  • Pathology

Background:

  • Oxidative stress is implicated in numerous neurodegenerative diseases.
  • Mitochondria are a primary endogenous source of reactive oxygen species (ROS).
  • The precise role of oxidative stress in disease onset versus manifestation remains unclear.

Purpose of the Study:

  • To review the mechanisms of oxidative stress.
  • To examine the role of oxidative stress in major neurodegenerative diseases.
  • To explore the link between oxidative stress, cyclin-dependent kinase 5 (Cdk5) hyperactivity, and neurodegeneration.

Main Methods:

  • Literature review of oxidative stress mechanisms.
  • Analysis of oxidative stress in Alzheimer's, Parkinson's, Huntington's diseases, and ALS.
  • Examination of the relationship between oxidative stress and Cdk5 deregulation.

Main Results:

  • Oxidative stress arises from various oxidants and is modulated by antioxidants.
  • Specific neurodegenerative diseases exhibit distinct patterns of oxidative damage.
  • Evidence suggests oxidative stress contributes to Cdk5 hyperactivity, a factor in neurodegeneration.

Conclusions:

  • Oxidative stress is a significant factor in neurodegeneration, originating from mitochondrial dysfunction.
  • Understanding oxidative stress pathways is crucial for neurodegenerative disease research.
  • Targeting oxidative stress and Cdk5 may offer therapeutic strategies for neurodegenerative conditions.

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