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. 2019 Sep 1;8(9):345. doi: 10.3390/antiox8090345

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© 2019 by the authors.

Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/).

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Effects of ethanolic extract of Paeonia suffruticosa flowers on UVB-induced epidermal thickening in the mice. Representative images of histological observation by H&E staining of mouse dorsal skin (400×). (A) control group: no irradiation; (B) model group: irradiated group with no treatment; (C) model + emulsifier (ME) group: irradiated group treated with emulsifier; (D) bud ethanolic extract (BEE) group: irradiated group treated with 2.0% (w/w) BEE in emulsifier; (E) flower ethanolic extract (FEE) group: irradiated group treated with 2.0% (w/w) FEE in emulsifier; (F) petal ethanolic extract (PEE) group: irradiated group treated with 2.0% (w/w) PEE in emulsifier; (G) stamen ethanolic extract (SEE) group: irradiated group treated with 2.0% (w/w) SEE in emulsifier. (H) Epidermal thickness. Data were expressed as mean ± SD (n = 6). *** p < 0.001 versus ME group; ^### p < 0.001 versus control group.