Antioxidant enzyme suppression of demyelination in experimental optic neuritis

John Guy, E. Ann Ellis, G. Marion Hope, Narsing A. Rao

Research output: Contribution to journalArticlepeer-review

26 Scopus citations


Detoxification of hydrogen peroxide by the antioxidant enzyme catalase suppressed the neurologic manifestations of acute experimental allergic encephalomyelitis (EAE) and prevented death of treated adult strain-13 guinea pigs. The oxygen radical scavenger superoxide dismutase (SOD) delayed the onset of paralysis by one day, but did not prevent death from encephalomyelitis common to most of this group and all untreated animals. Histopathologic analysis of the optic nerves confirmed a statistically significant reduction in demyelination with catalase treatment, but not with SOD. Hydrogen peroxide, and/or its conversion products, discharged by phagocytic mononuclear cells, may play a role in the pathogenesis of demyelination in experimental optic neuritis.

Original languageEnglish (US)
Pages (from-to)467-477
Number of pages11
JournalCurrent Eye Research
Issue number5
StatePublished - 1989
Externally publishedYes

ASJC Scopus subject areas

  • Ophthalmology
  • Sensory Systems
  • Cellular and Molecular Neuroscience


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