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Depression: 21st Century Solutions + The Dark Side of Wheat

Abstract Title:

Apigenin inhibits UVA-induced cytotoxicity in vitro and prevents signs of skin aging in vivo.

Abstract Source:

Int J Mol Med. 2016 Jun 6. Epub 2016 Jun 6. PMID: 27279007

Abstract Author(s):

Sungjin Choi, Jeungyeun Youn, Karam Kim, Da Hye Joo, Shanghun Shin, Jeongju Lee, Hyun Kyung Lee, In-Sook An, Seungbin Kwon, Hae Jeong Youn, Kyu Joong Ahn, Sungkwan An, Hwa Jun Cha

Article Affiliation:

Sungjin Choi

Abstract:

Apigenin (4',5,7-trihydroxyflavone) is a flavone that has been reported to have anti-inflammatory, antioxidant and anti-carcinogenic properties. In this study, we investigated the protective effects of apigenin on skin and found that, in experiments using cells, apigenin restored the viability of normal human dermal fibroblasts (nHDFs), which had been decreased by exposure to ultraviolet (UV) radiation in the UVA range. Using a senescence-associated (SA)-β-gal assay, we also demonstrate that apigenin protects against the UVA-induced senescence of nHDFs. Furthermore, we found that apigenin decreased the expression of the collagenase, matrix metalloproteinase (MMP)-1, in UVA-irradiated nHDFs. UVA, which has been previously identified as a photoaging-inducing factor, has been shown to induce MMP-1 expression. The elevated expression of MMP-1 impairs the collagen matrix, leading to the loss ofelasticity and skin dryness. Therefore, we examined the clinical efficacy of apigenin on aged skin, using an apigenin‑containing cream for clinical application. Specifically, we measured dermal density, skin elasticity and the length of fine wrinkles in subjects treated with apigenin cream or thecontrol cream without apigenin. Additionally, we investigated the effects of the apigenin-containing cream on skin texture, moisture and transepidermal water loss (TEWL). From these experiments, we found that the apigenin‑containing cream increased dermal density and elasticity, and reduced finewrinkle length. It also improved skin evenness, moisture content and TEWL. These results clearly demonstrate the biological effects of apigenin, demonstrating both its cellular and clinical efficacy, and suggest that this compound holds promise as an anti-aging cosmetic ingredient.

Study Type : Animal Study, In Vitro Study

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Sayer Ji
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Depression: 21st Century Solutions + The Dark Side of Wheat

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