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KAINIC-ACID-INDUCED NEURODEGENERATION: PROTECTIVE MECHANISMS OF NITRONE ANTIOXIDANTS.

Life Sciences & Biotechnology Update

| August 01, 2001 | COPYRIGHT 2001 Merton Allen Associates. This material is published under license from the publisher through the Gale Group, Farmington Hills, Michigan.  All inquiries regarding rights should be directed to the Gale Group. (Hide copyright information)Copyright

This (Oklahoma Medical Research Foundation) research focuses on developing nitrone-based antioxidants as antidotes against chemical agents that induce excitatory neurotoxicity. It is proposed to use kainic acid, an analog of the excitatory amino acid glutamate, to induce chronic neurological damage in adult rats. This model has been widely used as a model for studying human temporal lobe epilepsy. The delayed neuronal degeneration induced by kainic acid resembles CNS neuronal injury, repair, and plasticity.

Preliminary observations show that nitrone antioxidants -- free radical trapping compounds -- protect rats from kainic-acid-induced death. It is found that cotreatment with the experimental antioxidant phenyl-N- tert-butylnitrone (PBN) results in: diminution of ...

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