• Title/Summary/Keyword: specific IgE

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Identification of the Chicken Meat Allergens (닭고기 중 알레르기 유발성분의 동정)

  • 조은득;김동섭;정기화
    • Biomolecules & Therapeutics
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    • v.9 no.1
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    • pp.7-14
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    • 2001
  • The chicken meat has been reported as one of the food causing allergic reactions predominantly to Korean. At present, several in vitro tests for immunoglobulinG (IgG)-mediated as well as IgE-mediated food allergy are available. 13 clinically chicken meat-allergic patients were investigated together with 4control subjects for identification of chicken meat-specific reactivity by ELISA. Also, protein profile and IgE, IgGtotal and IgG4-reacting allergens were detected by means of sodium dodecyl sulfate-polyacrylamide gel electro-phoresis (SDS-PAGE)and immunoblotting. Chicken meat extracts were prepared as raw, heated, heat and simulated gastric fluid (SGF) treated samples to characterize the stability of allergen to physicochemical treatment. SDS-PAGE revealed 9~200 kDa bands. And in immunoblotting 7 sera were identified most major bands between 10 and 78 kDa. In case of IgE, six proteins (17, 26, 35, 40, 78 kDa) were predominant in heat-treated extract, and the one (35 kDa) was present in SGF-treated preparations. In case of IgG$_{total}$ and IgG4, most of them showed a patters simmilar to IgE. There were significant differences (P<0.05) in IgE, IgG$_{total}$ , IgG4 Abs to chicken meat between the allergic and control subjects in ELISA. In addition, the concentration of IgG4Abs in the challenge-positive subjects was significantly higher than that of control subjects. It is considered that the specific IgE response to chicken meat was rarely prevalent to Koreans. However, the specific IgG4 response play an important role in the development of allergic symptoms.

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Clinical Significance and Interpretation of Allergen-Specific IgE Testing in Regard to Food Allergy (식품 알레르기에서 특이 IgE 검사의 유용성 및 해석)

  • Hyun Jung Jin
    • The Korean Journal of Medicine
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    • v.99 no.3
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    • pp.145-148
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    • 2024
  • Food allergy is an adverse reaction that occurs after ingesting food and is caused by an aberrant immune response. Taking a detailed medical history is the most important part of diagnosing food allergies. When an immunoglobulin E (IgE)-mediated food allergy is suspected, food-specific IgE testing can confirm the diagnosis. Allergen skin-prick tests or serum tests for specific IgE should be considered as the first line of testing, and depending on the offending food, a further prick-to-prick test with fresh food or a component-resolved diagnostic test may be helpful. Interpretation of the results should be based on the patient's medical history.

Serum IgE levels in rats infected with Parugonimus westermani (폐흡충(Paragonimus westermani) 감염백서에서의 혈청내 IgE 항체가의 변동)

  • Sin, Myeong-Heon;Ryu, Jae-Suk;Min, Deuk-Yeong
    • Parasites, Hosts and Diseases
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    • v.29 no.4
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    • pp.397-402
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    • 1991
  • Paragonimus westermani is a common fluke in Korea. The present study aimed to determine serum total IgE and specific IgG levels in experimental paragonimiasis of rats. Each Wistar rat was inoculated orally with 20~25 metacercariae of P. westermani from Cambaroides similis. Before and after infection(1,2,3,4,6,8 weeks) of P. westermani, the blood was collected from the retro- orbital venous plexus of rats and kept serum at $-70^{\circ}C$. Serum total IgE and specific IgG levels were determined by the capture and conventional enzyme-linked immunosorbent assay, respectively. The results were as follows; 1. Serum IgE values were increased to 0. 18${\pm}$0.042 at 2 weeks, $0.28{\pm}0.151$ at 4 weeks and 0.43${\pm}0.055$ at 8 weeks after infection. The absorbances of non-infected rats ranged $0.07{\pm}0.021~0.12{\pm}0.025$. 2. Specific IgG values were slightly increased at 3 weeks ($0.20{\pm}$0.032) and gradually increased up to 8 weeks($0.31{\pm}0.067$) after infection. The absorbances of non-infected rats ranged $0.11{\pm}0.035~0.18{\pm}0.019$. The present results suggested that p. westermani could elevate serum IgE and specific IgG antibodies in Wistar rats which were not a good definitive host.

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Elevation of Specific IgE Antibody in Clonorchis sinensis infection (간흡충종 환자의 혈청내 IgE 열 간흡충 특이 IgE 항체의 상승)

  • 민득영;소진탁
    • Parasites, Hosts and Diseases
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    • v.21 no.1
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    • pp.27-31
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    • 1983
  • 21명의 간흡충 감염환자 및 15명의 건강인으로부터 혈청을 수집하여 혈청내 IgE와 간흡충에 대한 특이 IgE 항체를 RIST와 RAST법을 이용하여 측정하였다. 간흡충 감염환자 및 건강인의 혈청 IgE와 특이 IgE는 각각 2,372 lU/ml과 364IU/ml 그리고 52.0%와 4.4%로 간흡충 감염자에서 모두 유의하게 상승되어 있었으며 (p<0.001 및 p<0.01), 혈청 IgE의 상승과 특이 IgE의 상승은 상호 밀접한 관계가 있었고(r=0.9451), 혈청 IgE와 EPG(r=0.6056), 특이 IgE와 EPG(r=0.5693) 역시 상관 관계가 있었다. 이상의 결과로 보아 간흡충 감염은 인체 혈청내 IgE 및 특이 IgE항체를 상승시키며, IgE 및 간흡충에 대한 특이 IgK는 숙주-기생충간의 면역반응에 관여할 것으로 생각된다.

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Effects of Socheongryong-Tang on Immunoglobulin Production in Asthmatic Mice (소청용탕(小靑龍湯)이 천식(喘息)이 유발된 생쥐의 면역 글로불린 분비에 미치는 영향)

  • Jung, Sun;Cho, Su-Jin;Moon, Kyoung-Il;Kim, Hyung-Woo;Kim, Bu-Yeo;Cho, Su-In
    • The Korea Journal of Herbology
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    • v.23 no.1
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    • pp.23-28
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    • 2008
  • Objectives : Socheongryong-Tang(小靑龍湯, SCRT), a herbal remedy, has been widely used to treat respiratory disease such as cough and asthma in Oriental countries. Recent years SCRT was known as anti-allergic agent. However, its therapeutic mechanisms including immunoglobuline such as IgE, IgG1, IgG2a productions are unclear. Methods : We investigated the effects of SCRT on levels of antigen specific total antibody, IgE, IgG1, IgG2a using ELISA method in serum from allergen-induced asthma mice. Results : SCRT decreased level of antigen specific IgE significantly. And SCRT treated mice showed downward tendency of IgG1, a Th1 relative antibody, level. But, SCRT did not affect levels of antigen specific total antibody and IgG2a, a Th1 relative antibody. Conclusions : we demonstrated the strong possibility of SCRT as a complementary or alternative drug to western drug also demonstrated that regulation of Th1/Th2 imbalance may be one of mechanism contributed to treatment for respiratory disease by SCRT.

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The Effects of Gamichunggumgangwha-tang (Jiaweiqingjinjianghuo-tang) and Gamiyukmigiwhang-tang (Jiaweiliuweidihuang-tang) on Immune Cell & Serum OA-specific IgE in BALF in a Rat Asthma Model (가미청금항화탕 및 가미육미지황탕이 Allergy 천식 모델 흰쥐의 BALF내 면역세포 및 혈청 IgE에 미치는 영향)

  • 조영민;정희재;정승기;이형구
    • The Journal of Korean Medicine
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    • v.24 no.3
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    • pp.1-10
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    • 2003
  • Background : Asthma is a chronic inflammatory disorder under immunological influence. Gamichunggumgangwha-tang (CG, Jiaweiqingjinjianghuo-tang) and Gamiyukmigiwhang-tang (YM, Jiaweiliuweidihuang-tang) are herbal tonics for asthma from traditional herbal medicine. Objective : To evaluate the effect of CG and YM on immune cell & serum OA-specific IgE in broncho-alveolar lavage fluid (BALF) in a rat asthma model. Materials and Methods : Rats were sensitized with OA; at day I sensitized group and CG and YM groups were systemically immunized by subcutaneous injection of 1mg OA and 300mg of Al(OH)3 in a total volume of 2ml. At the same time, 1 ml of 0.9% saline containing $6{\times}10^9$ B. pertussis bacilli was injected by Lp. 14 days after the systemic immunization, rats received local immunization by inhaling 0.9% saline aerosol containing 2% (wt/vol) OA. A day after local immunization, BALF was collected from the rats. Rats were orally administered with each of CG and YM extract for 14 days since the day after local immunization. Lymphocyte, CD4+ T cell and CD8+ T cell counts, CD4+/CD8+ ratio in BALF, change of serum OA-specific IgE level, CD4+ T cell and CD8+ T cell percentages in the peripheral blood were measured and evaluated. Results : CG and YM showed an alleviating effect on asthmatic responses of rats. CG decreased total cell, lymphocyte, CD4+ T cells in BALF, and serum OA-specific IgE level as compared with the control group. YM decreased lymphocytes as compared with the control group. CD4+/CD8+ ratio in BALF from the CG and YM groups and serum OA-specific IgE level from the YM group didn't show any significant variation from the control group. Conclusion : CG alleviated asthmatic hyperreactivity of the immune system through CD4+ T cells and serum IgE. Further the study of this immune system modulating mechanism is expected.

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Increasing Prevalence of the Sensitization to Cat/Dog Allergens in Korea

  • Park, Bok Won;Park, Jun Yeong;Cho, Eun Byul;Park, Eun Joo;Kim, Kwang Ho;Kim, Kwang Joong
    • Annals of dermatology
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    • v.30 no.6
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    • pp.662-667
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    • 2018
  • Background: Recently, the number of domestic pets has increased. As a consequence, sensitization to animal allergens, such as cat or dog allergens, has become a problem. Objective: We studied the annual trends of sensitization to cats or dogs, and the characteristics of the patients. Methods: We retrospectively analyzed the medical records of 7,469 patients who visited a dermatology clinic and underwent an allergic profile test, from January 2011 to December 2015. Specific immunoglobulin E (IgE) levels to cat or dog antibody greater than 3.50 IU/ml were regarded as positive results. Results: In all, 274 patients showed significant increase in levels of specific IgE antibody to dog, and 307 revealed increase in levels of of specific IgE antibody to cat. The prevalence of these specific IgEs increased from 2011 to 2015. Independent risks for sensitization to cat allergens were sensitization to dog, but not to house dust, Dermatophagoides pteronyssinus, and D. farinae. Independent risks for sensitization to dog allergens were sensitization to cat, but not to house dust, D. pteronyssinus, and D. farinae. Total IgE level was not related to specific IgE level against either cats or dogs. Conclusion: In conclusion, the prevalence of sensitization to cat or dog has increased. Sensitization to cat or dog is related to each other, but is irrelevant to the total IgE level.

Increased Allergen-specific IgE Values and Lymphocyte Proliferation Response to House Dust Mites in Dogs with Atopic Dermatitis (개의 아토피성 피부염에 대한 집먼지 진드기 항원 특이적 IgE와 림프구 증식 반응의 증가)

  • Park, Seong-jun
    • Journal of Veterinary Clinics
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    • v.21 no.2
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    • pp.93-96
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    • 2004
  • We examined the responses of PBMCs to house dust mite (HDM) allergen in atopic and healthy, non-atopic dogs to identify differences in lymphocyte reactivity that might reflect the immunologic status of atopic dermatitis. Thirteen of 20 (65%) atopic dogs showed a positive lymphocyte proliferative response to HDM allergen. The rate of response was significantly higher in the atopic dogs than that in healthy, non-atopic dogs insensitive to the allergen (P = 0.007). The proliferative responses were positively correlated with the level of HDM-specific IgE in serum (P = 0.035), and were thereby confirmed to reflect the activity of lymphocytes competent to promote IgE production. These results suggest that HDM-specific lymphocytes were present in peripheral blood and played a role in the pathogenesis of canine atopic dermatitis.

The Effects of Gudambopae-Tang on Changes of Cytokines in Allergic Rhinitis Model (거담보폐탕(去痰補肺湯)이 알레르기성 비염 모델 생쥐의 cytokine변화에 미치는 영향)

  • Yang, Hee-Yeon;Kim, Yoon-Bum
    • The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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    • v.18 no.2
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    • pp.28-35
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    • 2005
  • In order to investigate the effects of Gudambopae-Tang on allergic rhinitis, laboratory study about cytokines and OVA-specific IgE was perfomed in the present study. The results are summarized as follow; 1. IL4, IL-5 was increased in medicating group than control group. 2. $IFN-{\gamma}$ was increased in medicating group than control group. 3. total IgE and OVA-specific IgE was significant decreased in medicating group than control group, statistically significant. This study shows experimentally that Gudambopae-tang could reduce allergic reaction in allergic rhinitis. Advanced studies are required to investigate the mechanisms of herbal medicine in allergic rhinitis model.

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The Effects of Tongkwansan on the Changes of Total IgE and Specific IgE in Allergic Rhinitis Mouse Model (알레르기성 비염 모델에서 통관산(通關散)이 Total IgE, specific IgE 생산에 미치는 영향)

  • Lee, Seung-Joo;Kim, Yoon-Bum
    • The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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    • v.20 no.1 s.32
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    • pp.16-26
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    • 2007
  • Background &Objectives : Rhinitis is an inflammation of nasal mucosa and the major symtoms are watery rhinorrhea, sneezing, itchy nose, and nasal obstruction. Rhinitis is classified into allergic rhinitis and nonallergic rhinitis. Allergic rhinitis is an immune reaction by allergen, and vasomotor rhinitis which is nonallergic and noninfectious is hypersensitive reaction. The incidence of allergic rhinitis has increased and the rate of vasomotor rhinitis is high. However there have been no studies about vasomotor rhinitis compared with allergic rhinitis. And there have been no studies so far performed on the effect of Tongkwansan. Therefore this study is aimed to find out the effects of Tongkwansan on allergic rhinitis and vasomotor rhinitis. Materials and Methods : Fifteen BALC/c mouses were divided into three groups : normal group, control group and sample group. To induce the allergic rhinitis in control group and sample group, mouses were sensitized intrapertioneally 0.1% ovalbumin solution three times at intervals of 1 week. Then intranasal sensitization was performed by diffusing 0.1 % ovalbumin solution 3 times at intervals of 2 days. After that time, mouses in the sample group were oral administration treated by Tongkwansan for 28 days. We observed changes in the segment of IL-4, IL-5, $IFN-{\gamma}$, Total IgE, and ovalvumin specific IgE in blood. We used the statistical methods of ANOVA test(p<0.05). Results : There were no significant changes statistically in $IFN-{\gamma}$, IL-4, and IL-5 in blood(p<0.05). There were also no significant changes statistically in Total IgE, OVA-specific IgE in blood(p<0.05). Conclusion : According to above results, it is supposed that Tongkwansan has no significant effects on allergic rhinitis. But it is supposed that Tongkwansan has significant effects on vasomotor rhinitis which is nonallergic and noninfectious

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