The purpose of this study was to evaluate the anti-atopic-dermatitis effect of Angelica keiskei extract using a DNFB-induced animal model of atopic-dermatitis symptoms. A. keiskei was prepared via extraction with DW, 50% ethanol, and 100% ethanol in addition to fresh juice. All the extracts reduced the thickness levels of the ears and ear epidermis against swelling by DNFB inducement, especially in the aqueous-extract-treated group. The mRNA expressions of matrix metalloproteinases (MMPs), however, were not observed, which may indicate that Angelica keiskei extract alleviates the atopic-dermatitis symptoms in an MMP-independent manner. Finally, the level of the inflammatory cytokine IL-4 was inhibited only in the juice-treated group, although the IL-13 level was inhibited in the juice-, 50%-ethanol-extract-, and 100%-ethanol-extract-treated groups in a dose-dependent manner, and was not inhibited in the aqueous-extract-treated group. Taken together, these results suggest that Angelica keiskei extract has an inhibitory effect on atopic dermatitis, and may be a useful biomaterial for the development of cosmeceuticals.

신선초 추출물의 미백활성을 확인하고 이의 소재를 개발하기 위하여, tyrosinase 저해 활성 및 B16F10 세포주를 이용한 melanogenesis 저해능을 확인하였다. 그 결과, 신선초 50% 에탄올 추출물에서 B16F10 melanoma 세포의 멜라닌 생성을 억제하였다. Melanogenesis 억제 활성에 관련이 있는 분자마커의 확인을 위하여 RT-PCR에 의한 mRNA 발현 수준을 검토한 결과, 농도의존적으로 TYR, TYRP-1.