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Published on: June 7, 2018
Redox Molecules in Aging and Neurodegenerative Disorders
Igor Y Iskusnykh1, Evgenii D Kryl'skii2, Tatyana N Popova2
1Department of Anatomy and Neurobiology, University of Tennessee Health Science Center, Memphis, TN 38163, USA.
Oxidative stress drives aging and neurodegeneration by disrupting key redox molecules like NAD+, NADPH, and GSH. Restoring redox balance shows promise for treating these conditions and extending lifespan.
Area of Science:
- Biochemistry
- Neuroscience
- Aging Research
Background:
- Oxidative stress is central to aging and neurodegenerative diseases (Alzheimer's, Parkinson's, Huntington's, MS).
- Redox couples like NAD+/NADH, NADP+/NADPH, and GSSG/GSH are crucial for cellular signaling and protection.
- Pathological conditions lead to decreased NAD+, NADPH, and GSH, causing redox imbalance.
Purpose of the Study:
- To review mechanisms of redox imbalance in aging and neurodegeneration.
- To evaluate studies on metabolic and genetic factors affecting redox compounds.
- To highlight strategies for regulating redox compounds for neuroprotection.
Main Methods:
- Literature review of biochemical and genetic studies.
- Analysis of experimental data on redox compound concentrations.
- Focus on the link between redox homeostasis and mitochondrial dysfunction.
Main Results:
- Pathological conditions decrease NAD+, NADPH, and GSH levels.
- Redox imbalance is closely linked to mitochondrial dysfunction in neurodegeneration.
- Metabolic and genetic factors contribute to altered redox homeostasis.
Conclusions:
- Disturbed redox homeostasis is a critical factor in aging and neurodegeneration.
- Targeting redox balance offers potential for novel therapeutic interventions.
- Restoring redox homeostasis may contribute to increased human lifespan.
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