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      • KCI등재후보

        어성초 추출물 부탄올 분획이 Bone Marrow Stromal Cell 분열능 및 골다공증 랫드에 미치는 영향

        송규춘,황귀서,Song, Kyoo-Chun,Hwang, Gwi-Seo 대한예방한의학회 2009 대한예방한의학회지 Vol.13 No.2

        This study was performed to evaluate the effect of HCB on the bone mass and its related factors in estrogen-deficient animal model. The model rats of osteoporosis showed a significant decrease in bone density, bone ash density, calcium content of femur bone. At the 14th day after ovariectomy-surgery, rats were administered with HCB, extract of Houyttnia cordata, per orally, and continued for 10 weeks. And osteoporosis related parameters were determined to investigate the effect of HCB. Osteoporotic rats showed lower serum estrogen level, higher body weight than normal rats, and showed atrophy of uterine horns.

      • KCI등재

        Processed Panax ginseng, Sun Ginseng Increases Type I Collagen by Regulating MMP-1 and TIMP-1 Expression in Human Dermal Fibroblasts

        송규춘,창동신,이혜진,김진희,박정일,황귀서 고려인삼학회 2012 Journal of Ginseng Research Vol.36 No.1

        In the present study, effects of sun ginseng (SG) on the collagen synthesis and the proliferation of dermal fibroblast were investigated. Collagen synthesis was measured by assaying procollagen type I C-peptide production. In addition, the level of matrix metalloproteinase (MMP)-1 was assessed by western blot analysis. SG suppressed the MMP-1 protein level in a dose-dependent manner. In contrast, SG dose-dependently increased tissue inhibitors of MMP (TIMP)-1 production in fi broblasts. SG increased type I collagen production directly and/or indirectly by reducing MMP-1 and stimulating TIMP-1 production in human dermal fi broblasts. SG dose-dependently induced fi broblast pr oliferation and this, in turn, can trigger more collagen production. These results suggest that SG may be a potential pharmacological agent with anti-aging properties in cultured human skin fibroblast.

      • KCI등재

        Protective Effect of Processed Panax ginseng, Sun Ginseng on UVBirradiated Human Skin Keratinocyte and Human Dermal Fibroblast

        이혜진,이주엽,송규춘,김진희,박정일,천광훈,황귀서 고려인삼학회 2012 Journal of Ginseng Research Vol.36 No.1

        In this study, we investigated the protective effects of processed Panax ginseng, sun ginseng (SG) against the UVB-irradiation on epidermal keratinocytes and dermal fi broblasts. Pretreatment of SG in HaCaT keratinocytes and human dermal fi broblasts reduced UVB-induced cell damage as seen by reduced lactate dehydrogenase release. We also found that SG restored the UVB-induced decrease in anti-apoptotic gene expression (bcl-2 and bcl-xL) in these cells, indicating that SG has an anti-apoptotic effect and thus can protect cells from cell death caused by strong UVB radiation. In addition, SG inhibited the excessive expression of c-jun and c-fos gene by the UVB in HeCaT cells and human dermal fi broblasts. We also demonstrated that SG may exert an anti-infl ammatory activity by reducing the nitric oxide production and inducible nitric oxide synthase mRNA synthesis in HaCaT keratinocytes and human dermal fi broblasts. This was further supported by its inhibitory effects on the elevated cyclooxygenase-2 and tumor necrosis factor-α transcription which was induced by UVB-irradiation in HaCaT cells. In addition, SG may have anti-aging property in terms of induction of procollagen gene expression and inhibition of the matrix metalloprotease-1 gene expression caused by UVBexposure. These fi ndings suggest that SG can be a potential agent that may protect against the dermal cell damage caused by UVB. In this study, we investigated the protective effects of processed Panax ginseng, sun ginseng (SG) against the UVB-irradiation on epidermal keratinocytes and dermal fi broblasts. Pretreatment of SG in HaCaT keratinocytes and human dermal fi broblasts reduced UVB-induced cell damage as seen by reduced lactate dehydrogenase release. We also found that SG restored the UVB-induced decrease in anti-apoptotic gene expression (bcl-2 and bcl-xL) in these cells, indicating that SG has an anti-apoptotic effect and thus can protect cells from cell death caused by strong UVB radiation. In addition, SG inhibited the excessive expression of c-jun and c-fos gene by the UVB in HeCaT cells and human dermal fi broblasts. We also demonstrated that SG may exert an anti-infl ammatory activity by reducing the nitric oxide production and inducible nitric oxide synthase mRNA synthesis in HaCaT keratinocytes and human dermal fi broblasts. This was further supported by its inhibitory effects on the elevated cyclooxygenase-2 and tumor necrosis factor-α transcription which was induced by UVB-irradiation in HaCaT cells. In addition, SG may have anti-aging property in terms of induction of procollagen gene expression and inhibition of the matrix metalloprotease-1 gene expression caused by UVBexposure. These fi ndings suggest that SG can be a potential agent that may protect against the dermal cell damage caused by UVB.

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