Email updates

Keep up to date with the latest news and content from BMC Complementary and Alternative Medicine and BioMed Central.

Open Access Research article

Danggui-Jakyak-San ameliorates memory impairment and increase neurogenesis induced by transient forebrain ischemia in mice

Mi Deok Song1, Dong Hyun Kim2, Jong Min Kim2, Hyung Eun Lee2, Se Jin Park2, Jong Hoon Ryu23* and Jae Hwan Lew1*

Author Affiliations

1 Graduate School of East–west Medical Science, Kyung Hee University, Yongin 446-701, Republic of Korea

2 Department of Life and Nanopharmaceutical Sciences, Kyung Hee University, Seoul 130-701, Republic of Korea

3 Department of Oriental Pharmaceutical Science, College of Pharmacy, Kyung Hee University, Seoul 130-701, Republic of Korea

For all author emails, please log on.

BMC Complementary and Alternative Medicine 2013, 13:324  doi:10.1186/1472-6882-13-324

Published: 22 November 2013

Abstract

Background

Danggui-Jakyak-San (DJS), a traditional herbal prescription, has been used to treat insufficient blood supplies. Recently, regenerative medication for the treatment of cerebral ischemia has drawn the attention of many researchers.

Methods

In this study, we examined whether DJS exerts a neuronal regenerative effect in the hippocampus of a transient forebrain ischemia mice model. Transient forebrain ischemia was induced by bilateral common carotid artery occlusion (BCCAO). Animals were divided into three groups (sham, BCCAO + vehicle, and BCCAO + DJS). To test the effect of DJS on learning and memory, Morris water maze or passive avoidance test was conducted. To test neuroprotective and neurogenic effect, immunohistochemistry and Western blot analysis were used. Statistical significance was analyzed with Student t-test, one-way or two-way analysis of variance.

Results

We found that the administration of DJS ameliorated ischemia-induced spatial memory impairment in the Morris water maze task. Moreover, Akt/glycogen synthase kinase-3β (GSK3β)/β-catenin signaling was increased by DJS, which would be one possible mechanism of DJS for neurogenesis in the hippocampal dentate gyrus region.

Conclusions

These results suggest that DJS is a possible candidate for the treatment of ischemia-induced neuronal degeneration.

Keywords:
Danggui-Jakyak-San; Transient forebrain ischemia; Neurogenesis; GSK-3β; β-catenin; Hippocampus