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Action of Rodgersia podophylla Root Extracts on Melanin Biosynthesis in Skin  

Kong, Yeon-Hee (Korea Food Research Institute)
Lee, Pyeong-Jae (Department of Natural Medicine Resources, Semyung University)
Choi, Sang-Yoon (Korea Food Research Institute)
Publication Information
Korean Journal of Medicinal Crop Science / v.15, no.6, 2007 , pp. 434-436 More about this Journal
Abstract
In the previous study, we reported the inhibitory effects of Rodgersia podophylla root extract on tyrosinase activity and melanin production in melan-a cells. However, mechanism of the inhibitory activity and in vivo assay were not yet examined. This study performed the examination of the effects of Rodgersia podophylla root extract on protein expression and in vivo depigmenting activity using melan-a cells and brown guinea pigs. As the results of western immunoblotting analysis, treatment of Rodgersia podophylla root extract reduced tyrosinase expression rates in 10 and 100 ppm concentrations, dose dependently. Moreover, Rodgersia podophylla root extract exhibited depigmenting activity on UV-B induced hyperpigmentation in brown guinea pig skin. These results suggested that Rodgersia podophylla root extract could act as whitening agent for the skin via not only direct tyrosinase activity inhibition but also reducing of tyrosinase expression.
Keywords
Rodgersia podophylla; melanogenesis; brown guinea pig;
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Times Cited By KSCI : 3  (Citation Analysis)
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