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아토피피부염 환자에서 민들레 추출물 함유제(AF-343)의 효과에 관한 연구
김지현 ( Ji Hyun Kim ),이혜인 ( Hye In Lee ),박주희 ( Ju Hee Park ),임윤영 ( Yun Young Lim ),김범준 ( Beom Joon Kim ),임인석 ( In Seok Lim ),김명남 ( Myeung Nam Kim ),김현석 ( Hyun Suck Kim ),김종근 ( Jong Keun Kim ),한성훈 ( Sung 대한천식알레르기학회 2010 천식 및 알레르기 Vol.30 No.1
Background: Taraxacum platycarpum has been investigated for its antiallergic activity in bronchial asthma, but few studies have been conducted to evaluate its efficacy for the treatment of atopic dermatitis (AD). Objective: This study was designed to evaluate the efficacy of the extracts of Taraxacum platycarpum (AF-343) for the treatment of AD. Method: Seventy-five patients with AD were randomly assigned either to a low-dose, high-dose or control groups. AF-343 and placebo were ingested for 8 weeks. The SCORing Atopic Dermatitis (SCORAD) scores, skin hydration, transepidermal water loss (TEWL), eosinophil, total IgE, eosinophil catinonic protein and cytokines were measured before and at the end of treatment. Result: A significant reduction in the SCORAD scores at the end of treatment were observed in the control, low-dose and high-dose groups when compared with the initial scores (P=0.028, P<0.001 and P<0.001, respectively). High-dose treatment increased the skin hydration (P=0.013), but no significant change was observed in the low-dose and control groups (P=0.056 and P=0.624, respectively). The low-dose and high-dose treatment groups showed a significant reduction of TEWL from baseline (P=0.002 and P=0.031, respectively). High-dose treatment induced an increase in eotaxin and a decrease in IL-5 (P=0.021 and P=0.028, respectively). Conclusion: These results show that AF-343 treatment can improve the severity and skin hydration in patients with mild AD. (Korean J Asthma Allergy Clin Immunol 2010;30: 36-42)
양희진(Hee-Jin Yang),박계원(Kye Won Park),김현석(Hyun-Suck Kim),조수묵(Soo-Muk Cho),박기문(Ki-Moon Park) 한국식품과학회 2010 한국식품과학회지 Vol.42 No.1
결명자(Cassia obtusifolia) 및 포공영(Taraxacum platycarpum), 유근피(Ulmus macrocarpa)로 제조된 생약재 추출혼합물이 in vitro와 in vivo상에서 아토피 피부염에 미치는 영향을 실험하였다. HMC-1 cell을 이용하여 비만세포의 β-hexosaminidase 방출량을 측정한 결과, 단일 추출물보다 추출복합물이 탈과립을 억제하는 효과가 우수한 것으로 측정되었다. 그리고 HMC-1 cell에서 PMA와 A23187로 자극하였을 때 생성되는 염증성 cytokine의 분비에서도 추출혼합물의 저해 효과가 가장 높게 나타났다. 아토피 질환모델인 NC/Nga 마우스를 사용하여 생약재 추출혼합물의 아토피 저감효과를 측정한 결과, 진드기 추출물에 의해 발진된 마우스의 귀두께 및 조직학적인 부종 관찰을 통해 생약재 추출혼합물 농도가 증가함에 따라 대조군에 비해 귀 두께 및 부종의 감소가 관찰되었다. 또한 마우스의 혈중 IgE 농도와 이와 관련된 cytokine의 농도를 측정한 결과, 생약재 추출혼합물 투여농도가 증가함에 따라 IgE의 농도가 유의적으로 감소하였고, IgE의 과발현을 유도하는 IL-4의 분비 억제 및 IFN-γ의 분비가 증가되는 것으로 나타나 생약재 혼합추출물의 섭취가 아토피 피부염 증세 완화 효과에 도움이 되리라 사료된다. The in vivo and in vitro effects of oriental herb extracts of Cassia obtusifolia, Taraxacum platycarpum and Ulmusmacrocarpa on anti-atopic allergic reaction were evaluated in this study. A mixture of these extracts exhibited more potent anti-allergic activities in human mast cells than those from individual extracts. The herbal mixture significantly inhibited the release of compound 48/80-induced β-hexosaminidase release in the human mast cell line, HMC-1. The mixture also suppressed the production of PMA and A23187-induced inflammatory cytokines in HMC-1 cells. To further investigate the in vivo effects of the herbal mixture, a Dermatophagoides farinae (DF)-induced atopic dermatitis mouse model was utilized. Oral administration of the herbal mixture significantly decreased the ear thickness and swelling in DF treated NC/Nga mice in a dose dependent manner. Furthermore, serum levels of IgE and interleukin-4 (IL-4) were significantly decreased, whereas interferon-gamma (IFN-γ) levels were increased in the mixture administrated groups when compared to the control. Taken together, our data indicate the possibility of using a mixture of the oriental herb extract to relieve symptoms of atopic dermatitis.