期刊
JOURNAL OF ETHNOPHARMACOLOGY
卷 148, 期 2, 页码 379-385出版社
ELSEVIER IRELAND LTD
DOI: 10.1016/j.jep.2013.03.001
关键词
Boophone disticha; Maternal separation; Anxiety disorders; Blood pressure; Heart rate
资金
- IFS
- University of Zimbabwe (UZ) Research Grants
Ethnopharmacological relevance: There are a number of reports from traditional medical practice in Zimbabwe and neighboring countries and few in vitro studies suggesting an effect with extracts of Boo phone disticha in some forms of anxiety disorder. Aim of the study: In order to validate the use of Boophone disticha in treatment of anxiety, this study was set to determine the effects of the plant extracts on blood pressure (BP) and heart rate (HR) in adult BALB/c mice subjected to repeated early maternal separation (MS) stress. Materials and methods: To test whether early life stress increases anxiety in mice, non-invasive tail cuff method was used to examine the autonomic nervous system activity by assessing cardiovascular reactivity and response to acute mixing stress (AMS) and restraint stress (RS) in adult mice subjected to early postnatal stress as compared to control. AMS-induced cardiovascular response was then evaluated in adult MS mice treated with Boophone disticha as compared to vehicle and diazepam. Results: Comparisons of the BP and HR measurements indicated that MS significantly reduced AMS-induced HR responses in BALB/c mice when compared with control. Boo phone disticha treatment significantly reduced AMS-induced BP response in BALB/c MS mice as compared to vehicle and diazepam treatments. Conclusions: Our findings demonstrate for the first time that postnatal stress can induce short-term changes in the sensitivity of the cardiovascular system to subsequent stress which can be reduced by treatment with a freeze dried aqueous ethanolic extract of Boophone disticha. (C) 2013 Elsevier Ireland Ltd. All rights reserved.
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