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Coenzyme Q10 administration increases brain mitochondrial concentrations and exerts neuroprotective effects Medical Sciences: Vol. 95, Issue 15, 8892-8897, July 21, 1998
Neurochemistry Laboratory, Neurology Service, Massachusetts General Hospital and Harvard Medical School, Boston, MA 02114 Edited by Bruce N. Ames, University of California, Berkeley, CA, and approved May 20, 1998 (received for review December 12, 1997) Coenzyme Q10 is an essential cofactor of the electron transport chain as well as a potent free radical scavenger in lipid and mitochondrial membranes. Feeding with coenzyme Q10 increased cerebral cortex concentrations in 12- and 24-month-old rats. In 12-month-old rats administration of coenzyme Q10 resulted in significant increases in cerebral cortex mitochondrial concentrations of coenzyme Q10. Oral administration of coenzyme Q10 markedly attenuated striatal lesions produced by systemic administration of 3-nitropropionic acid and significantly increased life span in a transgenic mouse model of familial amyotrophic lateral sclerosis. These results show that oral administration of coenzyme Q10 increases both brain and brain mitochondrial concentrations. They provide further evidence that coenzyme Q10 can exert neuroprotective effects that might be useful in the treatment of neurodegenerative diseases. Copyright © 1998 by The National Academy of Sciences 0027-8424/98/958892-6$2.00/0
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