The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology (한방안이비인후피부과학회지)
- Volume 21 Issue 1
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- Pages.1-15
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- 2008
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- 1738-6640(pISSN)
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- 2234-4020(eISSN)
Anti-skin-aging effects of Paeonia Suffruticosa Andrews on maintaining skin collagen in STZ-induced diabetic rats and inhibiting MMP-1 systhesis in human skin fibroblasts
당뇨흰쥐의 콜라겐 감소 및 인간 피부 섬유아세포의 MMP-1 증가에 대한 목단피(牧丹皮)의 항피부노화 효과
- Published : 2008.04.25
Abstract
Objective : Skin aging is commonly observed in patients with diabetes mellitus, which can be accessed by the amount of skin collagen and matrix metalloproteinase-1 (MMP-1). In the present study, anti-skin-aging effects of Root Cortex of Paeonia Suffruticosa Andrews (PSA), which has been widely used to treat diabetes mellitus, are investigated. Methods : Streptozotocin (STZ) was intraperitoneally injected to rats to induce diabetes. Body weights, feed intake, organ weights, blood glucose, and other biochemical index are determined in both normal and diabetic rats. In order to study the effect of PSA on skin aging, the amount of skin collagen was measured in diabetic rats after PSA treatments. Also, MMP-1 synthesis in UVB-irradiated human skin fibroblasts was investigated. Results : 1. When PSA was administered to STZ-induced diabetic rats, feed intake was significantly increased and blood glucose and total cholesterol were decreased in a dose-dependent manner. However, there are no differences in individual organ weights, GOT, and GPT. 2. A decrease of skin collagen in diabetic rats was significantly suppressed when PSA was treated. 3. PSA also inhibited MMP-1 synthesis in UVB-irradiated normal human skin fibroblasts, similar to retinoid, a well-known effective anti-skin-aging substance. Conclusion: PSA suppressed a collagen decrease in diabetic rats and inhibited MMP-1 synthesis in UVB-irradiated human skin fibroblasts. Therefore, the treatment of PSA is very effective to slow down the skin aging process.