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KMID : 0861020130280060025
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Korea Journal of Herbology
2013 Volume.28 No. 6 p.25 ~ p.29
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Kim Hyung-Woo
Ryu Jeong-Hyun
Jo Su-Zy
Cheon Won-Ju
Son Yong-Hae
An Won-Gun
Cho Su-In
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Abstract
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Objectives: The dried root of Sophora flavescens Aiton have been used to treat patient with skin diseases such as eczema in Eastern countries. S. flavescens can clear away heat and dry dampness and purge sthenic-fire from the liver and gallbladder. Recently, anti-allergic effect of S. flavescens has been reported. However, the effect on skin condition of contact dermatitis still remains unknown. Thus, the purpose of this study is to evaluate the efficacy of S. flavescens on contact dermatitis.
Methods : In order to investigate the effects of S. flavescens (methanol extract of S. flavescens, MESR) on skin condition, the contact dermatitis was induced in mice skin by using 1-fluoro-2,4-dinitrofluorobenzene (DNFB). As the effective endpoints, skin thickness, skin weight, histopathological change were checked. In addition, effects on skin lesion, body weight and spleen/body weight ratio were also investigated.
Results : Topical application of MESR (500 ㎍/day) lowered skin thickness (P < 0.05) and skin weight (P < 0.05), respectively. MESR-treated group showed diminished spongiosis and immune cell infiltration in skin tissues compared to those of non-treated control group. The inhibition of skin lesions was also observed in MESR-treated group. In addition, MESR did not affect body weight gain and spleen / body weight ratio in contrast with those in dexamethasone-treated group.
Conclusion : These data suggest that Sophorae Radix could improve skin lesion of contact dermatitis. This indicates the possibility for Sophorae Radix to be used to patients with skin diseases such as contact dermatitis.
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KEYWORD
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Sophora flavescens, Contact dermatitis, herbal medicine, eczema
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