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. 2015 Oct 31;15:395. doi: 10.1186/s12906-015-0889-8

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© Lee et al. 2015

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 2 — Vasorelaxant effect of a 70 % methanol extract of Angelica dahurica root (ADE) on phenylephrine (PE)-precontracted (1 μM) rat aortic rings with (E+) (a) or without (E-) (b) endothelium. PE-induced contraction of endothelium-intact aortic ring almost relaxed to baseline after acetylcholine treatment (Ach, 10 μM) (a). PE-induced contraction of endothelium-denuded aortic ring remained unaffected after acetylcholine treatment (b). Values are expressed as mean ± SEM (n = 8) (c)