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. 2018 Mar 21;56(1):225–234. doi: 10.1080/13880209.2018.1446031

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© 2018 The Author(s). Published by Informa UK Limited, trading as Taylor & Francis Group.

This is an Open Access article distributed under the terms of the Creative Commons Attribution License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

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Figure 1. — A representative tracing (A I) is showing the effect of norepinephrine (NE), acetylcholine (ACh) and the crude extract of Rumex acetosa (Ra.Cr) on blood pressure in normotensive and hypertensive rats (A II) under anaesthesia. (B) The hypertensive and hypotensive effects of NE and Ach, respectively. (C–G) The hypotensive response of the crude extract of Ra.Cr and its fractions in normotensive and hypertensive rats under anaesthesia. Values shown are mean ± SEM. Six determinations in either case. **p < 0.01, ***p < 0.001.