• 한방안이비인후피부과학회지
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• 제25권1호
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• pp.22-32
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• 2012

Objectives : In this study, Samhwangsaejaegami extract was tested to prove its anti-atopic dermatitis effect on NC/Nga mice. Methods : In order to evaluate the external use effects of Samhwangsaejae extract on anti-atopic dermatitis, the expression of filaggrin, serine palmitoyltransferase(SPT), and COX-2 were analyzed. In vivo study, clinical skin severity score, IgE, IL-4, IL-5 and IL-6 level were analyzed through NC/Nga atopic mice model after 12 weeks external treatment. Results : In vitro study results showed the reduction in the expression of filaggrin, SPT, and COX-2. In vivo study results demonstrated the significant reduction in clinical skin severity score, IgE, IL-4, IL-5, IL-6 expression level. Conclusions : These results showed Samhwangsaejaegami extract can be a promising candidate for anti-atopic dermatitis treatment.

• Korean Chemical Engineering Research
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• 제48권6호
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• pp.690-694
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• 2010

본 연구에서는 대나무, 계피, 생강 등 8종의 한약재를 포함한 한방목초액의 소재특성을 시험하여 화장품 및 피부질 환용 의약품에의 응용가능성을 조사하였다. 목초액의 항산화력은 DPPH 자유라디칼 소거법으로 측정되었으며 $50{\mu}g/ml$의 농축목초액 농도에서 97%의 매우 높은 항산화능을 보여주었다. 목초액의 항균력은 원판확산법으로 시험되었으며, 피부상재균인 Staphylococcus aureus에 대해 우수한 항균력을 보여주었다. 목초액의 미백효과는 tyrosinase 활성억제시험법으로 측정되었으며 대조군인 비타민 C에 비해 매우 낮아서 미백효과는 미미하였다. 목초액의 안전성 시험은 MTT assay에 의해 측정되었으며, 세포 독성이 비교적 높은 것으로 나타났다. 목초액의 화장품소재 안정성 시험 결과 색, 향, 외관 및 pH에서 큰 변화가 없어서 매우 안정하였다. 무모생쥐를 이용한 항 아토피 시험결과, 목초액은 DNCB에 의해 유도된 피부염증을 9일 째 거의 정상상태로 회복시켰으며, 피부내 IgE의 농도도 대조군에 비해 30% 감소시켜 항 아토피 효과가 우수한 것으로 나타났다. 따라서 목초액은 항산화력, 항균력 및 항 아토피 효과가 우수하여 화장품소재나 피부질환치료제로서의 응용 가능성이 큼을 알 수 있었다.

• 대한본초학회지
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• 제29권3호
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• pp.51-58
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• 2014

Objectives : In order to investigate the efficacy of BJBB on atopic dermatitis, various anti-inflammatory factors were studied. Methods : In-vitro, inflammatory mediators, such as MTT and nitric oxide were detected after the addition of LPS with or without BJBB in Raw 264.7 cells. In-vivo, in order to verify the effectiveness of BJBB in atopic dermatitis animal model, its role in inflammation factors and histological changes were observed in NC/Nga mice. Results : BJBB showed cell viability of 100% or higher in all concentration in Raw 264.7 cells. BJBB inhibited LPS-induced productions of inflammatory mediators nitric oxide in RAW 264.7cells. BJBB treated group showed significant decrease in the expression of IL-1b, IL-6 and TNF-a by 40%, 80% and 44% respectively. Also the group showed decrease in the transcription of IL-1b, IL-6 and TNF-a mRNA in spleen by 41%, 93% and 39% respectively. BJBB treated group showed significant decrease in WBC, neutrophil, lympocyte and monocytes immune cell ratio in blood by 54%, 63%, 57% and 86% respectively. BJBB treated group showed decrease in the expression of IgG by 39% respectively. Also, infiltration of adipocytes into skin was suppressed and the thickness of epidermis and dermis were relatively decreased in the BJBB treated group. Conclusion : BJBB has an anti-inflammatory effects in NC/Nga mouse. Thus, these results suggested a beneficial effect of BJBB in treatment with Atopic dermatitis and inflammatory.

• 한국자원식물학회지
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• 제32권5호
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• pp.433-441
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• 2019

본 연구는 하라케케(Harakeke)로 불리는 신서란(Phormium tenax)를 화장품 및 의약품산업의 기능성 소재로서의 이용 가능성을 확인하기 위하여 신서란 잎을 대상으로 70% 에탄올 추출물과 용매 분획물을 제조하여, 이것들의 항염증 및 항아토피의 효과를 조사하였다. LPS로 유도된 RAW 264.7 세포에서 신서란 에탄올 추출물과 용매 분획물의 항염증 효과를 조사한 결과, methylene chloride와 ethyl acetate 분획물에서 NO와 $PGE_2$ 생성 억제 활성이 가장 높게 나타났으며, 농도 의존적으로 NO와 $PGE_2$ 생성 억제 활성을 보였다. 또한, 이들 분획물에서는 iNOS 및 COX-2 발현 억제 활성을 보였다. 신서란 잎 조추출물과 용매 분획물에 의한 NO, $PGE_2$ 생성 억제 활성이 NOS 및 COX-2 발현 억제에 의한 것임을 제시한다. 더불어, $hIFN-{\gamma}$로 자극된 HaCaT 세포에 용매 분획물을 처리하여 MDC 및 TRAC 생성억제 효과를 조사한 바, methylene chloride 분획물은 MDC 및 TATC의 생성을 각각 65%, 52% 생성억제 시켰으며, ethyl acetate 분획물은 MDC 및 TATC의 생성을 각각93%, 84% 억제 효과를 보였다. 이상의 결과는 신서란 잎 조추출물과 용매 분획물을 이용한 항염증 및 항아토피 효능을 갖는 유효성분 분리 및 활용화 연구에 중요한 기초자료가 될 것이며, 기능성 화장품, 의약외품 및 의약품 소재 개발에 적용 가능성이 높다고 사료된다.

• 한방안이비인후피부과학회지
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• 제23권3호
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• pp.42-65
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• 2010

Objectives : Betula platyphylla var. japonica extract (BPE) was used to determine the modulation of cytokine secretion, the activation of inflammatory and allergic factor and the inhibition of gene expression. Inflammatory and allergic cytokines as IL-$1{\beta}$, IL-2, IL-4, IL-5, IL-6, IL-8, TNF-${\alpha}$, NO and COX-2 were measured to use effectively on improvement or treatment of atopic dermatitis. Methods : We used NC/Nga mouse induced by atopic dermatitis to observe the effects of BPE on the weight, water and feed, blood test, weight of organs, histological change, total IgE and histological change of main organs. Results : BPE is effective on anti-inflammatory and allergic reaction. However, further study is needed to prove which component of BPE indicates effective pharmacological action. Conclusions : The above results suggest that Phellinus igniarius Quel extract could be applicable for improvement of several skin functions.

• 한국식품과학회지
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• 제48권6호
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• pp.582-589
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• 2016

본 연구는 캠벨어얼리 포도가지와 새송이버섯 혼합 추출물이 활성화된 면역세포에서 항염증 및 화학항원과 생물학적 항원을 동시에 처리한 아토피 피부염 유사 모델 마우스에서 아토피 개선에 대한 상승효과를 알아보았다. 그 결과 지방질다당류로 자극된 RAW 264.7 세포에 포도가지와 새송이버섯 각각의 추출물 처리했을 때 보다 이들 추출물을 혼합하여 처리할 때 산화질소와 $PGE_2$ 생성을 효과적으로 억제하였다. 또한 지방질다당류로 자극된 RAW 264.7 세포와 PMA와 A23187로 활성화된 HMC-1 세포에서도 각각의 추출물 보다 혼합추출물을 처리했을 때 $TNF-{\alpha}$와 IL-6 생성에 대한 억제 효과가 매우 우수하였다. 더욱이 DNCB와 집먼지진드기 항원으로 유도된 아토피 피부염 유사 모델에서 포도가지와 새송이버섯 혼합 추출물 투여는 각각의 추출물 투여에 비해서 외부적 피부병변과 피부두께 및 피부조직학적 등 임상적으로 아토피 피부염에 대한 개선 효과가 매우 뛰어남을 확인할 수 있었다. 이러한 포도가지와 새송이버섯 혼합 추출물의 아토피 피부염 개선 효과는 혈청 내 IgE와 IL-4의 생성을 억제함으로써 각각의 추출물에 비해서 상승되는 효과가 있음을 나타내 주었다. 이러한 결과는 포도가지와 새송이버섯 각각의 추출물 투여보다는 이들의 추출물을 혼합하여 투여하는 것이 아토피 피부염을 개선시키는데 효과적임을 알 수 있었다.

• 대한의생명과학회지
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• 제23권4호
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• pp.303-309
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• 2017

${\beta}$-sitosterol, one of phytosterols, exhibited numerous pharmacological effect including anti-inflammatory, anti-cancer and immune-modulating properties. This study attempted to determine the pharmacological effects of ${\beta}$-sitosterol on atopic dermatitis (AD). We investigated to ascertain the pharmacological effects of ${\beta}$-sitosterol on 2, 4-dinitrochlrobenzene (DNCB)-induced AD symptom and histamine-induced scratching behaviors in mice. Additionally, we evaluated the effects of ${\beta}$-sitosterol on the interleukin (IL)-6 levels in HaCaT cells and skin tissue of AD. The findings of this study demonstrated that ${\beta}$-sitosterol reduced AD clinical symptoms such as eczematous, erythema and dryness and serum histamine and IgE levels in DNCB-induced AD model and histamine-induced scratching behaviors in mice. Additionally, ${\beta}$-sitosterol inhibited the IL-6 expression in AD-like skin lesion and HaCaT cells. Collectively, these findings provide that ${\beta}$-sitosterol could be a therapeutic agent for skin inflammation including AD.

• Journal of Veterinary Science
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• 제24권1호
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• pp.6.1-6.6
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• 2023

Two Shih-Tzu dogs with atopic dermatitis presented with delayed periocular dermatitis (PD) following the instillation of dorzolamide and dorzolamide/timolol combination eyedrops; the development of dermatologic signs took 94 and 104 d in cases 1 and 2, respectively. Hypersensitivity to anti-glaucoma eyedrops was highly suspected, and treatment was discontinued. Delayed PD was significantly relieved in cases 1 and 2, at days 155 and 64 after discontinuation, respectively. In this study, the clinical characteristics and progression of delayed PD were described to inform clinicians who may encounter this rare side effect.

• Toxicological Research
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• 제27권3호
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• pp.173-180
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• 2011

Atopic dermatitis (AD) is a chronic, recurrent inflammatory skin disease that is associated with Th2 cell-mediated allergy. The process that leads to infiltration of inflammatory cells into an AD lesion is remarkably dependent on various chemokines, especially TARC (thymus and activation-regulated chemokine/CCL17) and MDC (macrophage-derived chemokine/CCL22). Serum levels of these chemokines are over-expressed in AD patients. Citrus unshiu, which is known as Satsuma mandarin, has anti-oxidative, anti-inflammation, and anti-microviral activity. Therefore, we investigated the effect of EtOH extract of premature C. unshiu on AD. We did this using a DNCB-induced AD mouse model. We also tried to confirm an inhibitory effect for premature C. unshiu on the expression of inflammatory chemokines in IFN-${\gamma}$ and TNF-${\alpha}$ stimulated HaCaT human keratinocytes. We found that extract of premature C. unshiu reduced DNCB-induced symptoms such as hyperkeratosis, increased skin thickness, and infiltrated mast cells, in our AD-like animal model. The extract decreased levels of IFN-${\gamma}$ and IL-4 in ConA-stimulated splenocytes isolated from DNCB-treated mice. Also, extract of premature C. unshiu inhibited mRNA expression and protein production of TARC and MDC through the inhibition of STAT1 phosphorylation. These results suggest that C. unshiu has anti-atopic activity by regulating inflammatory chemokines such as TARC and MDC.

• 한국응용과학기술학회지
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• 제37권1호
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• pp.66-75
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• 2020

Atopic dermatitis (AD) usually develops in patients with an individual or family history of allergic diseases, and is characterized by chronic relapsing inflammation seen specially in childhood, association with IgE hyperproduction and precipitation by environmental factors. and wished to examine closely effect that Polygonum multiflorum isolated PM-E and PM-70M orally adminstration used to atopy dermatitis disease patient get in atopy eruption control experimentally. Atopic dermatitis is a chronically relapsing inflammatory skin disease. Animal models induced by relevant allergens play a very important role in the elucidation of the disease. This study was investigated the anti-allergic effect of PM-E and PM-70M on BMAC induced atopic dermatitis in NC/Nga mice. We summerized as the follow. PM-E and PM-70M significantly reduced the skin number of total cell number, CD4⁺ and CD11b⁺/Gr-1 cell compared with positive control and decreased the invasion of CD4⁺ cell in dorsal skin tissue compared with positive control group by using immunohistochemical staining and chemokine such as eotaxin and CCR3 compared with positive control group. PM-E and PM-70M markedly suppressed invasion and edema of leukocytes and mast cell in dorsal skin. Taken together, these findings suggested that PM-E and PM-70M has an anti-allergic activity and this might be useful for the clinical application to treat allergic diseases such as atopic dermatitis.