Anxiolytic-Like Effects of Chrysanthemum indicum Aqueous Extract in Mice: Possible Involvement of GABAA Receptors and 5-HT1A Receptors |
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Authors: | Sa-Ik Hong Seung-Hwan Kwon Min-Jung Kim Shi-Xun Ma Je-Won Kwon Seung-Min Choi Soo-Im Choi Sun-Yeou Kim Seok-Yong Lee Choon-Gon Jang |
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Institution: | 1.Department of Pharmacology, School of Pharmacy, Sungkyunkwan University, Suwon 440-746, Republic of Korea;2.YD Life Science Research Institutes, YD Life Science Co.Ltd., Seoul 139-743, Republic of Korea;3.College of Pharmacy, Gachon University, Incheon, 406-799, Republic of Korea |
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Abstract: | Chrysanthemum indicum Linne is an ancient herbal medicine used to treat bone and muscle deterioration, ocular infl ammation, headache, and anxiety in Korea, China, and Japan. Furthermore, tea derived from Chrysanthemum indicum Linne has been used to treat anxiety by facilitating relaxation and curing insomnia. However, no reports exist on the anxiolytic-like effects of Chrysanthemum indicum Linne water extract (CWE) in mice. In the present study, we investigated the anxiolytic-like effects of CWE using the elevated plus-maze (EPM) test in mice. CWE, at a dose of 500 mg/kg (p.o.), signifi cantly increased the time spent in the open arms of the EPM compared to a vehicle-injected control group. Moreover, the effect of CWE (500 mg/kg) was blocked by bicuculline (a selective GABAA receptor antagonist) and WAY 100635 (a selective 5-HT1A receptor antagonist). Taken together, these fi ndings suggest that the anxiolytic-like effects of CWE might be mediated by the GABAA receptor and the 5-HT1A receptor. |
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Keywords: | Chrysanthemum indicum Linne Anxiolytic-like effects Elevated plus maze GABAA receptor 5-HT1A receptor |
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