Korean Journal of Food Science and Technology (한국식품과학회지)

Korean Society of Food Science and Technology (한국식품과학회)
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Effects of Oral Intake of Gromwell Water Fraction on Ceramides Content and the Development of Atopic Dermatitis in NC/Nga Mice

자초 추출물 극성 성분의 피부 보습 증진 및 아토피 피부염 호전 효과

  • Kim, Young-Ran (Department of Medical Nutrition, Graduate School of East-West Medical Science, Kyung Hee University) ;
  • Cho, Si-Young (Amorepacific Corporation R&D center) ;
  • Seo, Dae-Bang (Amorepacific Corporation R&D center) ;
  • Kim, Sung-Han (Nutrex Technology) ;
  • Lee, Sang-Jun (Amorepacific Corporation R&D center) ;
  • Cho, Yun-Hi (Department of Medical Nutrition, Graduate School of East-West Medical Science, Kyung Hee University)
  • 김영란 (경희대학교 동서의학대학원 의학영양학과) ;
  • 조시영 ((주)아모레퍼시픽 기술연구원) ;
  • 서대방 ((주)아모레퍼시픽 기술연구원) ;
  • 김성한 ((주)뉴트렉스) ;
  • 이상준 ((주)아모레퍼시픽 기술연구원) ;
  • 조윤희 (경희대학교 동서의학대학원 의학영양학과)
  • Published : 2009.10.31
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Abstract

Gromwell (LE, Lithospermum erythrorhizon), a perennial herbal plant, has been used for the treatment of various problems associated with atopic dermatitis of the skin, such as water loss, epidermal hyperproliferation, and severe inflammation. Previously, it was shown that oral supplementation with a 70% ethanol extract of gromwell prevented the development of atopic dermatitis in NC/Nga mice. In this study, in order to identify the fraction that mediates gromwell's efficacy, the dietary effects of water and ethyl acetate fractions from the ethanol extract of gromwell were assessed in the development of dermatitis using NC/Nga mice. Dietary supplementation of the hot water fraction significantly reduced scores for epidermal hyperproliferation in parallel with a marked increase of ceramides. Supplementation of the gromwell hot water fraction also decreased scratching behavior, which was accompanied by a decrease in plasma levels of IgE. These results showed that the hot water fraction of the gromwell ethanolic extract prevented the development of atopic dermatitis by increasing ceramides in NC/Nga mice.

자초 에탄올 추출물의 활성성분이 어떤 분획에 있는지를 확인하기 위해, 자초 에탄올 추출물과 이를 각각 물과 에틸아세테이트로 추출한 물질들을 NC/Nga mice 아토피 피부염 동물 모델에 10주간 식이 공급한 후, 세라마이드 함량과 아토피성 피부염 발전의 억제 효과를 분석하였다. 자초 추출물들의 5주 이상의 장기간의 식이 공급은 체중 및 식이 효율에 부정적인 효과를 나타내지 않았다. 자초의 70% 에탄올 추출물의 식이 공급은 표피에서 세라마이드 함량을 현저히 증가시켰다. 자초 에탄올 추출물을 다시 물로 추출한 물 추출물을 먹인 군에서는 통계적으로 유의하지는 않으나 아토피 피부염 음성 대조군과 비교하여 세라마이드 함량이 50% 이상 증가하였다. 그러나, EA 추출물을 먹인 군에서는 세라마이드 함량증가가 관찰되지 않았다. 또한, 아토피 피부염에 의해 발생한 표피의 과증식도 자초의 물 추출물을 먹인 군에서는 어느 정도 억제되었으나, EA 추출물을 먹인 군에서는 과증식이 억제되지 않았다. IgE의 수준과 소양증은 아토피 피부염 음성 대조군에 비해 자초 추출물 3종을 먹인 군들에서 모두 호전되었다. 이것은 자초의 70% 에탄올 추출물에 함유된 활성 성분이 에틸아세테이트 층보다는 물 층에 존재할 확률이 높다는 것을 의미한다. 우리의 연구결과는 NC/Nga mice 아토피 피부염 동물 모델에서 자초 70% 에탄올 추출물 중 물 추출물이 EA 추출물 보다 표피의 세라마이드 함량의 증가와 표피 과증식 억제를 비롯하여 혈청 IgE 감소 및 소양증 완화에 더욱 효과적임을 보였다. 이로부터 자초 70% 에탄올 추출물에 함유된 극성 성분은 피부의 보습 및 아토피성 피부염 발전의 억제의 효능이 확인되어 건강 기능식품의 소재로서의 이용 가능성이 높다고 할 수 있다.

Keywords

References

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