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Free Radicals as Mediators of Neuronal Injury

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Abstract

1. Free radicals may play an important role in several pathological conditions of the central nervous system (CNS) where they directly injure tissue and where their formation may also be a consequence of tissue injury.

2. Free radicals produce tissue damage through multiple mechanisms, including excitotoxicity, metabolic dysfunction, and disturbance of intracellular homeostasis of calcium.

3. Oxidative stress can significantly worsen acute insults, such as ischemia, as well as chronic neurodegenerative disorders including amyotrophic lateral sclerosis (ALS) and Parkinson's disease.

4. For instance, recent findings suggest a causal role for chronic oxidative stress in familial ALS, as this disease is linked to missence mutations of the copper/zinc superoxide dismutase (SOD).

5. Thus, therapeutic approaches which limit oxidative stress may be potentially beneficial in several neurological diseases.

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  1. Department of Neurology, Neuroscience and Physiology, Johns Hopkins University School of Medicine, 600 North Wolfe Street, Carnegie 214, Baltimore, Maryland, 21287

    Fabrizio Facchinetti, Valina L. Dawson & Ted M. Dawson

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  1. Fabrizio Facchinetti
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  2. Valina L. Dawson
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Facchinetti, F., Dawson, V.L. & Dawson, T.M. Free Radicals as Mediators of Neuronal Injury. Cell Mol Neurobiol 18, 667–682 (1998). https://doi.org/10.1023/A:1020685903186

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