BioAcyl Corp
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Byun, H. J., Cho, K. H., & Eun, H. C. (2012). Lipid ingredients in moisturizers can modulate skin responses to UV in barrier-disrupted human skin in vivo. Journal of Dermatological Science, 65(2), 110–117. Added by: Dr. Enrique Feoli (30/11/2023, 20:27) Last edited by: Dr. Enrique Feoli (24/08/2024, 16:51) |
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| Resource type: Journal Article DOI: 10.1016/j.jdermsci.2011.12.005 ID no. (ISBN etc.): 0923-1811 BibTeX citation key: Byun2012 View all bibliographic details  |
Categories: BioAcyl Corp Subcategories: UV Damage Repair Creators: Byun, Cho, Eun Collection: Journal of Dermatological Science |
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| Abstract |
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Background Chemicals with a molecular weight <500 and adequate lipid solubility can penetrate the intact human skin. As many lipid ingredients in moisturizers have molecular weights <500, the lipid ingredients may penetrate into the skin and affect skin responses to UV; however, little is known about this phenomenon. Objective To evaluate the effects of major lipid ingredients in moisturizers on skin responses to UV in tape-stripped human skin in vivo. Methods We evaluated the effects of three major lipid ingredients in moisturizers (cholesterol, linoleic acid, and a synthetic ceramide, N-oleoyl-phytosphingosine) on skin responses to UV in the tape-stripped skin of healthy volunteers. After 2 days of lipid-application, the areas were irradiated with UV, and skin samples were obtained 24h after irradiation. Histologic features and the expression of the markers of collagen metabolism and inflammatory mediators were evaluated. Results Compared to vehicle, topical cholesterol significantly decreased the degree of dermal inflammatory infiltrates and exocytosis, and also decreased the expression of MMP-1, IL-6, and IL-1ß mRNA. In contrast, topical linoleic acid increased the induction of apoptotic cells, and the expression of MMP-1 and IL-6 mRNA. N-oleoyl-phytosphingosine increased the expression of MMP-1 and IL-6 mRNA, while decreasing the expression of COX-2 mRNA. Conclusions Topical cholesterol can protect the barrier-disrupted skin against UV-induced damage, while linoleic acid or N-oleoyl-phytosphingosine alone has the potential to aggravate the damage.
Added by: Dr. Enrique Feoli Last edited by: Dr. Enrique Feoli |
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https://doi.org/10.1016/j.jff.2019.04.011 Added by: Dr. Enrique Feoli Last edited by: Dr. Enrique Feoli |
