Reduction of traumatic brain injury-induced cerebral oedema by a free radical scavenger.

Abstract

Oxygen derived free radicals have been proposed to be in part responsible for the cerebral oedema resulting from head injury. In the present study the effects of free radical suppression with MDL 74,180 (2,3-dihydro-2,2,4,6,7-pentamethyl-3-(4-methylpiperazino)-methyl-1 - benzofuran-5-ol dihydrochloride), an alpha-tocopherol analogue free radical scavenger, on the development of cerebral oedema resulting from head injury has been assessed. Fluid percussion head injury in rats caused a regional oedema 48 h after injury. Infusion of MDL 74,180 for 2 h after the injury significantly attenuated oedema development in a dose-related manner. Using magnetic resonance imaging, cerebral oedema development was monitored in head injured mice. Oedema was apparent 4 h after head injury and was greatest in the vicinity of the olfactory bulb and surrounding the ventricles. Treatment with MDL 74,180 (1-10 micrograms/kg intravenously, administered 3-5 min after the injury) significantly reduced the oedema development. MDL 74,180 is a potential treatment for the oedema caused as a result of head injury.

• Authors: M A Petty, P Poulet, A Haas, I J Namer, J Wagner
• Journal: European journal of pharmacology (Eur J Pharmacol) Vol. 307 Issue 2 Pg. 149-55 (Jun 27 1996) ISSN: 0014-2999 [Print] Netherlands
• PMID: 8832216 (Publication Type: Journal Article)

Chemical References

• Benzofurans
• Free Radical Scavengers
• MDL 74,180
• Piperazines

Topics

• Animals
• Benzofurans (therapeutic use)
• Brain Edema (drug therapy, etiology)
• Brain Injuries (complications)
• Free Radical Scavengers (therapeutic use)
• Magnetic Resonance Imaging
• Male
• Mice
• Mice, Inbred Strains
• Piperazines (therapeutic use)
• Rats
• Rats, Inbred Strains