Suppression of cortical spreading depressions after magnesium treatment in the rat

W.S. Hel, van, W.M. Bergh, van den, K. Nicolaij, C.A.F. Tulleken, R.M. Dijkhuizen

Research output: Contribution to journalArticleAcademicpeer-review

45 Citations (Scopus)

Abstract

AB THE aim of this study was to investigate whether the neuroprotective properties of magnesium in cerebral ischaemia involve suppression of repetitive tissue depolarizations. Cortical spreading depressions (CSDs), evoked by cortical KCl application, and cardiac arrestinduced anoxic depolarization (AD) were measured by extracellular DC recording on intact rat brain. At 90 min after onset of CSDs saline, MK-801 (3 mg/kg) or MgSO4 (90 mg/kg) was given i.v. Latency time to AD was measured after 4h. The frequency of CSDs was significantly reduced in animals treated with MgSO4 or MK-801. AD was significantly delayed by MgSO4 but not by MK-801. Our results suggest that suppression of depolarization by magnesium may play a role in its neuroprotective properties in cerebral ischaemia.
Original languageEnglish
Pages (from-to)2179-2182
JournalNeuroReport
Volume9
DOIs
Publication statusPublished - 1998

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