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Siberian ginseng reduces infarct volume in transient focal cerebral ischaemia in Sprague-Dawley rats.

Bu Y, Jin ZH, Park SY, Baek S, Rho S, Ha N, Park SK, Kim H,

Department of Herbal Pharmacology, Graduate School of East-West Medical Science KyungHee University, Seoul, South Korea.

Siberian ginseng, the root and stem bark of Acanthopanax senticosus Harms, has been used as a tonic and adaptogen to strengthen qi in traditional Korean medicine. The neuroprotective effects of water extracts of A. senticosus (ASW) were investigated in transient middle cerebral artery occlusion (MCAo, 90 min occlusion, 24 h reperfusion) of Sprague-Dawley rats. The infarct volume was significantly reduced by 36.6% after the peritoneal injection of ASW (100 mg[sol ]kg) compared with the control. In the immunohistochemical study, ASW markedly inhibited both cyclooxygenase-2 and OX-42 expressions in the penumbral region at 24 h after MCAo. These results suggest that A. senticosus has a neuroprotective effect by inhibiting inflammation and microglial activation in brain ischaemia.

Published 2 May 2005 in Phytother Res, 19(2): 167-9.
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