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KMID : 0861020210360060001
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Korea Journal of Herbology
2021 Volume.36 No. 6 p.1 ~ p.8
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Protective effects of Atractylodis Rhizoma Alba Extract on seizures mice model
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Kang So-Hi
Lee Su-Eun
Lee A-Yeong
Seo Yun-Soo
Moon Chang-Jong
Kim Sung-Ho
Lee Ji-Hye
Kim Joong-Sun
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Abstract
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Objectives : Atractylodis rhizoma Alba has been traditionally used as a medicinal resource that is used for enhancing Qi (氣) in traditional medicine in Korea, China, and Japan. This study investigated the protective effects of Atractylodis rhizoma Alba extract (ARE) against trimethyltin (TMT), a neurotoxin that causes selective hippocampal injury, using both in vitro and in vivo models.
Methods : We investigated the effects of ARE on TMT- (5mM) induced cytotoxicity in primary cultures of mouse hippocampal cells (7 days in vitro) and on hippocampal injury in C57BL/6 mice injected with TMT (2.6 mg/kg).
Results : We observed that ARE treatment (0 ? 50 μg/mL) significantly reduced TMT-induced cytotoxicity in cultured hippocampal neurons in a dose-dependent manner, based on results of lactate dehydrogenase and 3-4,5-dimethylthiazol-2-yl-2,5-diphenyltetrazolium bromide assays. Additionally, this study showed that orally administered ARE (5 mg/kg; between ?6 and 0 days before TMT injection) significantly attenuated seizures in adult mice. Furthermore, quantitative analysis of allograft inflammatory factor-1 (Iba-1)- and glial fibrillary acidic protein (GFAP)- positive cells showed significantly reduced levels of Iba-1- and GFAP-positive cell bodies in the dentate gyrus of mice treated with ARE prior to TMT injection. These findings indicate the significant protective effects of ARE against the TMT-induced massive activation of microglia and astrocytes in the hippocampus.
Conclusions : We conclude that ARE minimizes the detrimental effects of TMT-induced hippocampal neurotoxicity, both in vitro and in vivo. Our findings may serve as useful guidelines to support ARE administration as a promising pharmacotherapeutic approach to hippocampal degeneration.
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KEYWORD
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Atractylodis Rhizoma Alba, trimethyltin, neuronal degeneration, hippocampus, seizure
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