• 제목/요약/키워드: Allergic dermatitis

검색결과 450건 처리시간 0.026초

Homology Modeling of CCR 4: Novel Therapeutic Target and Preferential Maker for Th2 Cells

  • Shalini, M.;Madhavan, Thirumurthy
    • 통합자연과학논문집
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    • 제7권4호
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    • pp.234-240
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    • 2014
  • C-C chemokine receptor type 4 (CCR4) is a chemokine receptor with seven transmembrane helices and it belongs to the GPCR family. It plays an important role in asthma, lung disease, atopic dermatitis, allergic bronchopulmonary aspergillosis, cancer, inflammatory bowel disease, the mosquito-borne tropical diseases, such as dengue fever and allergic rhinitis. Because of its role in wide spectrum of disease processes, CCR4 is considered to be an important drug target. Three dimensional structure of the protein is essential to determine the functions. In the present study homology modeling of human CCR4 was performed based on crystal structure of CCR5 chemokine receptor. The generated models were validated using various parameters. Among the generated homology models the best one is selected based on validation result. The model can be used for performing further docking studies to identifying the critical interacting residues.

비침이 비색증에 대한 영향 (A Clinical Observation of the Nasal Acupunture Therapy on Nasal Obstruction)

  • 김윤범;윤상협
    • 한방안이비인후피부과학회지
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    • 제12권2호
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    • pp.205-211
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    • 1999
  • We studied 32 patents, who had visited Kyung Hee downtown oriental hospital with nasal obstruction. They has been observed their nasal cavity through anterior rhinoscopy. We had paten't middle and inferior turbinte bleeding by acupuncture. This symptom had been disappeared after this treatment. The result were as follows. 1. Sex and age distribution: The males were 18($56.2\%) and Female were 14($43.8\%$). The most common occurrence was found between 1-5 years old. 2. The most common duration of disease was between 2-6 months. 3. In decreasing order, the common complication & past history of otolaryngologic or allergic disease were allergic rhinitis, atopic dermatitis, chronic sinusitis, adenoid or tonsil hypertrophy, otitis media with effusion and asthma. 4. In descending order, distribution of symptoms were rhinorrhea, sneezing, dry sensation, sputum, frontal headach, postnasal drip and cough. 5. The improvement rate in symptom were $31.3\%\;excellent\;and\;53.1\%$ good.

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배독환(排毒丸)의 아토피피부염 병태모델에서의 면역 억제 효능 (Effects of Baedokhwan on Immune Modulation in Atopic Dermatitis Model of NC/Nga Mice)

  • 이종협;김선빈;김동희
    • 동의생리병리학회지
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    • 제24권5호
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    • pp.796-806
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    • 2010
  • Atopic dermatitis induced NC/Nga mice were used to investigate the efficacy of BDH(Baedokhwan) on the recovery of dermatitic symptoms through its influence on the immune related factors and histological changes. First of all, BDH treated group showed improvement of atopic dermatitis with naked eye observation, and significant decrease of clinical index(CI) was observed after 14 weeks. And Infiltration of leukocytes was suppressed in BDH treated group, and the thickness of hypertrophied epidermis and dermis were decreased. In dorsal skin, BDH treated group showed significant decrease of the ratio of CD3+, CD11b+/Gr-1+ immune cells by 52.8%, 25.2, respectively. And also significant decrease the level of IL-5 mRNA and IL-13 mRNA by 44.4%, 28.0, respectively. In PBMC and serum, BDH treated group showed an decrease of CD4+/CD45+, B220+/CD23+, CD4+, CD8+, CD4+/CD25+ immune cells by 35.0%, 12.6%, 42.7%, 31.6% and 55.6%, respectively, and the level of histamine was decreased by 39.0%. The results above indicated that BDH clinically used for atopic dermatitis treatment has objective validity, and therefore can be provided as the basic data for anti-allergic and anti-inflammatory studies.

아토피피부염 동물 병태모델에서의 형개연교탕(荊芥連翹湯)의 면역조절작용 (The effects of HYT on various immunological factors related to pathogenesis of allergic dermatitis in NC/Nga mice induced by Biostir AD)

  • 강란이;박보경;김선빈;최학주;김동희
    • 혜화의학회지
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    • 제18권2호
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    • pp.47-62
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    • 2009
  • Atopic dermatitis induced NC/Nga mice were used to investigate the efficacy of HYT on the recovery of dermatitic symptoms by how HYT influenced the immune related factors. The results are as below: 1. Compared to the control, HYT treated group showed recovery of atopic dermatitis by the naked eye observation, and significant reduction of dermatits index was observed after 14 weeks. 2. HYT treated group showed significant decrease of the ratio of CCR3+, B220+/IgE+, and Gr-1+/CD11b+ immune cells in dorsal skin by 40.5%, 34.2%, and 48.1%, respectively. 3. HYT treated group showed increase in the ratio of CD19+ immune cells within PBMC by 10.8%, as well as decrease in CD3+, CD3+/CD69+, NKT+ ratios by 5.3%, 35.2%, and 44.9%, respectively. 4. HYT treated group showed increase in the expression of IFN-$\gamma$ in serum by 589.3%, whereas the expression of IL-4, IL-5, IL-6, IL-13, TNF-$\alpha$, MCP-1 and RANTES were decreased by 31.4%, 82.1%, 97.1%, 39.5%, 83.7%, 26.1%, 48.6%, respectively. A 47.2% decrease in IgE expression was also observed. The results above strongly supported the improvement of atopic dermatitis by HYT treatment through immune modulation. Further studies on the synergistic effect of each ingredients of HYT and therapeutic effects according to the dosage of each ingredient should be followed for clinical applications. This work was (partly) supported by the RIC program of MKE(Ministry of Knowledge Economy) in Daejeon University.

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금은화, 연교 및 황련해독탕 약침이 아토피 피부염 유발 NC/Nga 생쥐에 미치는 영향 (The Effects of Lonicerae Flos, Forsythiae Fluctus and Hwangryunhaedok Decoction Pharmacopuncture on Atopic Dermatitis in NC/Nga Mice)

  • 유정석;김종욱;이창현;이상룡;육태한
    • Journal of Acupuncture Research
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    • 제32권4호
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    • pp.119-131
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    • 2015
  • Objectives : Atopic dermatitis is a chronic inflammatory skin disease characterized by pruritic and erythematous skin lesions. The purpose of this study was to investigate the suppressive effects of Lonicerae Flos, Forsythiae Fluctus and Hwangryunhaedok Decoction Pharmacopuncture on the development of atopic dermatitis-like skin lesions in NC/Nga Mice. Methods : The Atopic Dermatitis was induced by biostir AD on the mice's back skin. Experimental groups were divided into three including LFP(Lonicerae Flos Pharmacopuncture, EtOH extract), FFP(Forsythiae Fluctus Pharmacopuncture, EtOH extract) and HHP(Hwangryunhaedok Decoction Pharmacopuncture, Hydrodistillation extract). Every second day, the mice of three groups were treated with $0.1m{\ell}$ of pharmacopuncture using a syringe at right and left acupoints ($BL_{13}$), alternatively. On the control group, normal saline was used instead of pharmacopuncture. Subsequently optical observation with a handscope, a clinical skin score, Tissue(general/immune) mast cell, Serum IgE level, Serum histamine level, and Serum lymphokine(IL-2, IL-4, $IFN-{\gamma}{\gamma}$) were measured. Results : FFP and HHP decreased the clinical skin score, the total cell number of mast cells, and the Serum total IgE level and Serum histamine level. In Serum lymphokine levels, all groups were decreased to the IL-4 level, LFP and FFP were increased to the IL-2 level, and LFP was increased to the $IFN-{\gamma}$ level. Conclusions : From the above results, Forsythiae Fluctus Pharmacopuncture (EtOH extract) and Hwangryunhaedok Decoction Pharmacopuncture (Hydrodistillation extract) exerted anti-allergic and anti-inflammatory effects, suggesting a promising agent for improving atopic dermatitis related symptoms.

NC/Nga 마우스 전혈을 이용한 항 아토피 피부염 물질 탐색 (Screening of Anti-Atopic Dermatitis Material by Using NC/Nga Mouse Whole Blood System)

  • 박동훈;김연욱
    • IMMUNE NETWORK
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    • 제8권3호
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    • pp.98-105
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    • 2008
  • Background: Allergic inflammation was induced by activated Th2 lymphocytes, leading to IgE production and eosinophil activation. A Th2 disproportion was shown in atopic children soon after birth. During specific allergen stimulation, an increase of Th2 cells was observed in most cases. In this study, we prepared new screening "whole blood" system for searching the anti-atopic materials. Cytokine production and IgE secretion from whole blood system were assessed and we confirmed the results by using animal system. Methods: Pathological features in NC/Nga mice are similar to those observed in human atopic dermatitis. Whole blood from NC/Nga mouse was stimulated by using TNCB (Th2 activator) or candidate materials of anti-atopic dermatitis, and the production of cytokines (IL-4, IL-12, and IFN-${\gamma}$) were measured by ELISA. In order to confirm the results of whole blood system, in vivo test was done by using NC/Nga mice. Results: In whole blood system, LPS and extracts of green tea, hardy orange and onion induced the production of IL-12 and IFN-${\gamma}$ while they reduced the production of IL-4. Also, LPS and extracts of onion reduced IgE production. Though atopic dermatitis was observed from a mouse stimulated with TNCB, it was not when a mouse was co-stimulated in LPS or extracts of onion. The results are same as those observed in whole blood system. Conclusion: Whole blood system was simple and speedy methods for searching a materials compared with the conventional high-cost animal system. And the results using whole blood system was proved to be reliable in our experiments for screening anti-atopic material. We expect that the system can be applied to other experiments for searching similar materials.

삼출성 중이염과 만성 비염을 동반한 아토피 피부염 1례 (A Case Report of Atopic Dermatitis with Otitis Media with Effusion and Chronic Rhinitis)

  • 이주현;조은희;홍지은;박지원;박민철
    • 대한한의학회지
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    • 제42권1호
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    • pp.110-118
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    • 2021
  • Objectives: This study aims to report a case of atopic dermatitis with otitis media with effusion and chronic rhinitis improved by oral administration of Galgeungabanha-tang. Methods: The patient of this case had symptoms such as erythema, abrasions, scales, and itching. She also complained of rhinorrhea, nasal obstruction, cough, sputum, and ear fullness. Considering the fact that she was sensitive to heat, but did not sweat well, and respiratory symptoms often occurred, Galgeungabanha-tang was prescribed. Results: After medication, the symptoms of atopic dermatitis significantly improved from 10 to 2 point. The subjective symptoms of chronic rhinitis and otitis media with effusion also improved considerably. In addition, nasal swelling and purulent exudate almost disappeared. The tympanic membrane, which was swollen due to amber exudate, also changed to a normal gray-white color. Conclusions: Atopic dermatitis accompanied by chronic rhinitis and otitis media was improved after 45 days of medication.

DNCB로 아토피피부염을 유발한 NC/Nga mice에서 사이프러스 에센셜 오일의 효능에 관한 연구 (A Study on the Skin Protection Effects of Cypress Essential Oil on the DNCB-induced Atopic Dermatitis in NC/Nga Mice)

  • 박찬익
    • 대한본초학회지
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    • 제32권3호
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    • pp.37-44
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    • 2017
  • Objectives : The application of DNCB (1-chloro-2,4-dinitrochlorobenzene) can cause cellular immunity allergic reaction such as erythema or edema on NC/Nga mice and combinational function of cells participating in immunity increase inflammatory mediator. In this study, the effects of cypress essential oil on NC/Nga mice have been assessed. Methods : Male SPF NC/Nga mice aged 8 weeks have been used for atopic dermatitis induction skin. 1% DNCB was applied on ears and backs of which hair was removed using clipper on $1^{st}$ day and 0.4% DNCB was applied three times a week for 3 weeks. In this study, cypress essential oil has been treated 1 time a day for 3 weeks after application of DNCB to induce atopic dermatitis on skin for further experiments. Results : This study shows that inhalation or application of cypress essential oil reduced edema in ears and the thickness of epidermis induced by DNCB treatment. And it can be known that treatment of cypress essential oil inhibited mast cell proliferation and reduced IgE level similar to that of the negative control especially when cypress essential oil was inhaled by the mice. Synthetic oil showed the effects lower than those of cypress essential oil. Conclusions : Inhalation or direct application of cypress essential oil on skin reduced IgE level in blood and prohibits the proliferation of mast cell, from which it can be known that cypress essential oil can be effectively used to reduce the symptoms of atopic dermatitis.

Regulatory Effect of Th-2 Cytokine Production in Mast Cells by 02PS15

  • Na, Ho-Jeong;Seo, Young-Wan;Lee, Eun-Hee;Kim, Hyung-Min;Hong, Seung-Heon
    • Biomolecules & Therapeutics
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    • 제12권2호
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    • pp.79-84
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    • 2004
  • 02PS15 extracts (BuOH, $H_2O$, and crude extracts) significantly inhibited IL-4 and IL-6 secretion from the phytohemagglutinin (PHA)-plus phorbol 12-myristate 13-acetate (PMA)-induced peripheral blood mononuclear cleas (P<0.05). 02PS15 extracts (BuOH and crude extracts) also significantly inhibited the histamine release from rat peritoneal mast cells (P<0.05). Significant reduced levels (P<0.05) of PMA- and A23187-induced IL-8 were observed in the human mast cell line, HMC-1, with O2PS15 extracts (BuOH and crude extracts). 02PS15 extracts (BuOH and crude extract) downregulated the expression of IL-6 and IL-8 in the activated HMC-1. These results suggest that O2PS15 has the inhibitory effect of atopic allergic reaction anil this might be useful for clinical application to treat several allergic diseases such as atopic dermatitis.