• 한방안이비인후피부과학회지
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• 제28권2호
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• pp.1-12
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• 2015

Objective : The goal of this study is to identify the effects of extract ofGentianae sino-ornata(GSO) on the anti-oxidative activity of skin.For this purpose, several functions of GSO were analyzed in terms of skin-lightening activity and wrinkle improvement. Methods : Cell viability was measured by neutral red (NR) assay, and GSO showed highly efficacy in DPPH radical scavenging activity. The level of tyrosinase and matrix metalloproteinase-1 (MMP-1) in media was analyzed by ELISA kit, and the expressions of p-JNK and p-ERK was measured by Western blot. To elucidate inhibitory effects of GSO on melanin synthesis, I determined the tyrosinase activity and melanin production in B16F10 cells. Results : MMP-1 production in UVB-stimulated HDF cells was inhibited by GSO treatments, and also GSO inhibited protein expression levels of p-JNK and p-ERK. GSO significantly reduced tyrosinase activity and melanin synthesis in B16F10 cells. Conclusions : From these results, GSO appears to be effective on skin elasticity increase, wrinkle improvement, whitening as anti-aging activity.

• 한방안이비인후피부과학회지
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• 제28권4호
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• pp.51-61
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• 2015

Objective : This research has been conducted to comparative analysis of anti-inflammatory effects to suggest a usefulness of ethanol extracts fromGentianae sino-ornata(GSO) as a functional material for inflammatory activities.Methods : Cell viability was measured by neutral red (NR) assay, and nitric oxide (NO) production in RAW264.7 cells was monitored by measuring the nitrite content in culture medium. The expressions of cyclooxigenase-2 (COX-2) was determined by western blot analysis, and Inducible nitric oxide syntase (iNOS) and cytokine were determined by reverse transcriptase-polymerase chain reaction (RT-PCR).Results : When the GSO extract was added the concentration of 5-20 ㎍/㎕, the viability of cells was maintained 90% or more at all levels. NO production was suppressed by the treatment of GSO in LPS-stimulated RAW264.7 cells. GSO inhibited the expression of iNOS, COX-2, IL-1βand IL-6 in LPS-stimulated RAW264.7 cells.Conclusions: From this results, we consider that GSO can be a useful therapeutic and preventive approach to various inflammatory diseases as a functional material for inflammatory activities.