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Abstract Title:

Effects of topical application of patchouli alcohol on the UV-induced skin photoaging in mice.

Abstract Source:

Eur J Pharm Sci. 2014 Oct 15 ;63:113-23. Epub 2014 Jul 14. PMID: 25033712

Abstract Author(s):

Xue-Xuan Feng, Xiu-Ting Yu, Wen-Jie Li, Song-Zhi Kong, Yu-Hong Liu, Xie Zhang, Yan-Fang Xian, Xiao-Jun Zhang, Zi-Ren Su, Zhi-Xiu Lin

Article Affiliation:

Xue-Xuan Feng

Abstract:

Ultraviolet (UV) irradiation, known to generate reactive oxygen species (ROS) excessively and elicit inflammatory response, is a potent inducer for skin photoaging. Overproduction of ROS in conjunction with the resulting inflammation stimulate the over-expression of matrix metalloproteinases (MMPs), which in turn causes degradation of extracellular matrix, leading finally to coarse wrinkling, dryness, and laxity of the skin. In this study, patchouli alcohol (PA, C15H26O), an active chemical ingredient reputed for free radical scavenging and anti-inflammatory properties, was investigated for its anti-photoaging action using a mouse model whose dorsal skin was depilated. The dorsal skin areas of six-week-old mice were smeared with PA solution or vehicle, followed by UV irradiation for nine consecutive weeks. Protective effects of PA were evaluated macroscopically and histologically, as well as by assaying the antioxidant enzymes (SOD, GSH-Px) activities, the contents of inflammatory factors (IL-10, IL-6, TNF-α), and the levels of MMP-1 and MMP-3. Our findings amply demonstrated that PA significantly accelerated the recovery of the UV-induced skin lesions, evidently through anti-oxidant and anti-inflammatory action, as well as down-regulation of the MMP-1 and MMP-3 expression.

Study Type : Animal Study

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