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Delayed treatment with dextromethorphan and dextrorphan reduces cerebral damage after transient focal ischemia.

作者信息

Steinberg G K, Saleh J, Kunis D

机构信息

Division of Neurosurgery, Stanford University School of Medicine, CA 94305.

出版信息

Neurosci Lett. 1988 Jun 29;89(2):193-7. doi: 10.1016/0304-3940(88)90380-1.

Abstract

The N-methyl-D-aspartate (NMDA) antagonists dextromethorphan (DM) and dextrorphan (DX) were found to reduce significantly neocortical severe ischemic neuronal damage (SIND) when administered in a delayed fashion after the ischemic insult. Rabbits underwent occlusion of the left internal carotid artery and anterior cerebral artery for 1 h, followed by 4 h of reperfusion. Immediately after the completion of the 1 h arterial occlusion, animals were blindly treated intravenously with 20 mg/kg loading dose followed by 10 mg/kg/h of DM, 15 mg/kg loading dose followed by 15 mg/kg/h of DX, or an equivalent volume of normal saline (NS) alone. The area of neocortical SIND was 3.7% in the DM group, 4.4% in the DX group, and 41.3% in the normal saline controls. These drugs may have considerable therapeutic potential in clinical stroke.

摘要

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