Inhibitory Effect of an Extract of Sanguisorba officinalis L.on Ultraviolet-B-Induced Photodamage of Rat Skin
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概要
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We previously reported that chronic Ultraviolet-B(UVB)irradiation causes wrinkle formation, decreases skin elasticity, and damages/curls dermal elastic fibers. Those UVB-induced wrinkles can be improved by treatment with retinoic acid or with a CO_2 laser which results in a recovery of skin elasticity and a repair of elastic fiber linearity. We showed further that topical application of N-phenetyl-leucyl-tryptophane, an agent that specifically inhibits fibroblast-derived elastase, immediately after UVB irradiation inhibited UVB-induced wrinkle formation, maintained skin elasticity, and inhibited changes in the three-dimensional structure of dermal elastic fibers in a dose-dependent manner. In this study, the effects of an extract of Sanguisorba officinalis L., which also inhibts fibroblast-derived elastase, was evaluated for possible inhibition of UVB induced wrinkle formation, maintenance of skin elasticity, and prevention of damage to the 3-dimensional structure of dermal elastic fibers. Hind limb skins of 3-week-old Sprague-Dawley rats were irradiated with UVB at a suberythemal dose 3 times a week for 6 weeks. Simultaneously, an extract of Sanguisorba officinalis L.(at 0.2%(v/v)or 1%(v/v))was topically applied 5 times per week immediately following each UVB irradiation and 1d later. The extract of Sanguisorba officinalis L.inhibited wrinkle formation, maintained skin elasticity, and inhibited the decrease of dermal elastic fiber linearity in the rat hind limb skin in a dose-dependent manner. We have confirmed that the inhibition of elastase activity in fibroblasts immediately after UVB irradiation using an extract of Sanguisorba officinalis L.prevents chronic photodamage following UVB irradiation.
- 公益社団法人日本薬学会の論文
- 2001-09-01
著者
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Fujimura Tsutomu
花王生物科学研究所
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Fujimura Tsutomu
Biological Science Laboratories Kao Corporation
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Kitahara Takashi
花王生物科学研究所
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Tsukahara Kazue
Global R&d Biological Science Kao Corporation
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Fujimura Tsutomu
Second Tokushima Factory Otsuka Pharmaceutical Co. Ltd.
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MORIWAKI Shigeru
Biological Science Laboratories, Kao Corporation
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TAKEMA Yoshinori
Biological Science Laboratories, Kao Corporation
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TSUKAHARA Kazue
Biological Science Laboratories, Kao Corporation
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KITAHARA Takashi
Kao Corporation Biological Science Laboratories
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Moriwaki Shigeru
Global R&d Biological Science Kao Corporation
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Tsukahara Kazue
Biological Science Laboratories Kao Corporation
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Takema Yoshinori
Global R&d Biological Science Kao Corporation
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Takema Yoshinori
Biological Science Laboratories Kao Corporation
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Kitahara Takashi
Biological Science Laboratories Kao Corporation
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