Oxidative Stress: Pathological Driver in Chronic Neurodegenerative Diseases

Area of Science:

• Neuroscience
• Biochemistry
• Pathology

Background:

• Oxidative stress is a key factor in numerous diseases, particularly neurodegenerative disorders.
• The brain is highly susceptible to oxidative damage due to reactive oxygen species (ROSs).

Purpose of the Study:

• To review the generation and impact of ROSs in the nervous system.
• To explore the role of oxidative stress in Alzheimer's, Parkinson's, Huntington's, and ALS.
• To highlight the therapeutic potential of antioxidants.

Main Methods:

• Literature review focusing on oxidative stress mechanisms and neurodegenerative diseases.
• Analysis of cellular damage, including oxidation of proteins, lipids, and nucleic acids.
• Examination of the link between ROSs, neuroinflammation, and neuronal dysfunction.

Main Results:

• Excessive ROS production overwhelms antioxidant defenses, leading to cellular damage and neuroinflammation.
• Mitochondrial dysfunction and metabolic enzyme activity are primary sources of ROSs.
• Oxidative stress is a critical contributor to the pathology of major neurodegenerative diseases.

Conclusions:

• Antioxidants represent a promising therapeutic strategy for neurodegenerative diseases.
• Understanding oxidative stress mechanisms is crucial for developing effective treatments.