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KMID : 1134820140430030374
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Journal of the Korean Society of Food Science and Nutrition
2014 Volume.43 No. 3 p.374 ~ p.380
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Wound Healing Effects of Lespedeza cuneata Extract
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Jung Hee-Kyoung
Kim Kil-Soo
Jeong Yoo-Seok
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Abstract
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In this study, the anti-inflammatory effects of Lespedeza cuneata extract on macrophages and wound-healing in wound-induced animal experiments were investigated. In an anti-inflammatory test, 0.1 mg/mL of Lespedeza cuneata extract did not affect growth of RAW 264.7 cells, and Lespedeza cuneata extract suppressed nitric oxide (NO) generation from inflammation-induced macrophages in a concentration-dependent manner. Wounds on the skin of rats were treated with vehicle containing Lespedeza cuneata extract (SSP), vehicle (SCO), and commercial ointment (CCO). The wound and scar sizes in the SSP group were significantly reduced in comparison to the SCO and CCO groups (P<0.05). The epidermis and dermis of the SSP group also recovered faster than the SCO group based on Masson's trichrome staining. The gene expression levels of vascular endothelial growth factor (VEGF) decreased and transforming growth factor-beta 1 (TGF-β1) increased in wound tissue from the SSP group compared to that from the SCO group. These results show that Lespedeza cuneata extract accelerates wound-healing through anti-inflammatory activity and induction of collagen regeneration as well as reduces the scar area surrounding wounds. Accordingly, Lespedeza cuneata extract could be useful as a cosmeceutical in the cosmetic industry.
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KEYWORD
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Lespedeza cuneata, cosmeceuticals, anti-inflammation, wound healing, wound repair
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