• Title/Summary/Keyword: specific IgE

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The Effect of Bangpungtongsung-San on Model of Allergic Rhinitis (알러지성 비염 병태 모델에 대한 방풍통성산(防風通聖散)의 항알러지 효과)

  • Kim, Hee-Jeong;Park, Owe-Suk;Kim, Keoo-Seok;Cha, Jae-Hoon;Kim, Yoon-Bum
    • The Journal of Korean Medicine Ophthalmology and Otolaryngology and Dermatology
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    • v.19 no.1
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    • pp.21-30
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    • 2006
  • Background and Objective : Allergic rhinitis is a IgE-mediated hypersensitive reaction at nasal mucosa. In oriental medicine, Bangpungtongsung-San is clinically widely used for the treatment of the allergic rhinitis. The objective of this study is to investigate the effects of Bangpungtongsung-San on allergic rhinitis experimentally. Material and Methods : BALB/c mouse were divided into there groups: intact, control, experimental groups. Control and experimental group were induced allergic rhinitis by Ovalbumin as· the method of Levin and Vaz. Experimental group was orally administered the Bangpungtongsung-San for 28days. Total IgE, Interleukin-4, Interleukin-5 and $Interferon-{\gamma}$ were measured at three groups. The statistical significance was examined by Independent Samples T test. Results : 1. The experimental group shows increase of $IFN-{\gamma}$ by 17% compared with control group but there was no statistical significance. 2. The experimental group shows increase of IL-4 and IL-5 compared with control group but there was no statistical significance. 3. The experimental group shows increase of Total IgE and diminution of OVA-specific IgE by 32% compared with control group but there was no statistical significance. Conclusion : The effect of Bangpungtongsung-San on allergic rhinitis is not immunological but seems to be anti-imflammatory and anti-stress effect.

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Generation of ROS by IgE-Dependent Histamine-Releasing Factor in RBL-2H3 Cells (RBL-2H3에서 IgE-dependent Histamine-releasing Factor에 의한 활성산소종 생성에 관한 연구)

  • Choo, Yee-Shin;Lee, Kyung-Iim
    • Microbiology and Biotechnology Letters
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    • v.33 no.3
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    • pp.231-235
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    • 2005
  • Histamine-releasing factors (HRFs) are soluble mediators that can release histamine and other mediators from basophils and mast cells and their activity can vary, depending on the type of IgE. The activity of HRFs is affected by the presence of IgE, although HRF is thought to bind to a specific receptor other than IgE. Until now, HRF signaling pathway including its receptor remains unclear in spite of numerous studies. Since there had been many reports about reactive oxygen species (ROS) as a signaling molecule rather than as a by-product of metabolism, we investigated the possibility of ROS as an intracellular messenger involved in HRF-mediated histamine degranulation. In RBL-2H3 cells, ROS was generated by HRF using $H_2O_2$-sensitive fluorescence of fluorescent 2', 7'-dichlorofluorescein ($H_2DCFDA$). These effects were blocked by anti-oxidant N-acetylcysteine (NAC). These results suggest that ROS generation could play a role as an intracellular messenger in histamine release by HRF.

Comparison of Allergens in Genetically Modified Soybean with Conventional Soybean (유전자변형 콩과 자연 콩의 알레르기 유발원 비교)

  • 박재현;정승태;김재희;김지영;노건웅
    • YAKHAK HOEJI
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    • v.45 no.3
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    • pp.293-301
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    • 2001
  • Genetically modified organism (GMO) using recombinant DNA technique has been exponentially increased, however there are still arguments for the safety of GM foods. The objective of this research was to compare the allergens of GM soybean(Roundup Ready$^{TM}$) with conventional soybeans. Each soybean extracts were prepared as crude extracts, heated extracts, and as heated and simulated gastric quid (SGF)-digested samples to characterize the stability of allergens to physicochemical treatment. Positive sera from 20 soybean-sensitive patients and control sera from 5 normal subjects were used to identify the endogenous allergens in soybeans. Specific-IgE binding activities to each soybean preparations were evaluated by ELISA and immunoblot technique. In ELISA result, IgE binding activities of positive sera to soy crude extracts generally showed two fold higher mean value than those of control sera, how-ever there was no significant difference between GM soybean and natural soybean varieties. Extracted proteins form each of the soybean preparations were separated with SDS-PAGE. The band pattern of GM soybean was very similar to those of natural soybean varieties. Immunoblots for the different soybeans revealed no differences in IgE-binding protein patterns, moreover, disclosed five prominent IgE-binding bands (75, 70, 50, 44 and 34 kDa) in crude extracts, four (75, 70, 44 and 34 kDa) in heated preparations, one (50 kDa) in heated and SGF-digested preparations. These IgE binding bands were consistent with previously reported results on the soybean. These results indicate that GM soybean (Roundup Ready$^{TM}$) is no different from natural soybean in terms of its allergen.gen.

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Effect of Hot Water Extract from Acanthopanax senticosus on Systemic Anaphylaxis (가시오가피 열수추출물의 전신성 Anaphylaxis에 대한 억제효과)

  • Yoon, Taek-Joon;Lee, Seok-Won;Shin, Kwang-Soon;Choi, Won-Hee;Hwang, Soo-Hyun;Seo, Sang-Hee;Kim, Sung-Hoon;Park, Woo-Mun
    • Korean Journal of Food Science and Technology
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    • v.34 no.3
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    • pp.518-523
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    • 2002
  • Administration of hot water extracts from Acanthopanax senticosus (GF-2) prophylactically and therapeutically inhibited the systemic anaphylactic shock induced by compound 48/80 in mouse. GF-2 significantly inhibited the production of histamine and eosinophyl in mouse serum through the injection of compound 48/80 in a dose-dependent manner. GF-2 inhibited dose dependently $TNF-{\alpha}$ production of peritoneal exudative cells activated by lipopolysaccharide. Intraperitoneal injection of GF-2 suppressed the production of IgG1 and IgE antibodies in mice immunized with a mixture of ovalbumin and aluminium hydroxide. These results suggest that GF-2 may be beneficial for the treatment of nonspecific and specific anaphylactic reactions and can be potentially applied to the treatment of allergic diseases.

Response of Measles-specific Antibody in Children with Measles During Measles Epidemic in Seongnam, 1993 (1993년도 성남지역에서 유행한 홍역 환아에서의 홍역 특이 항체 반응)

  • Kim, Ji Youn;Park, Yoon Hyung;Kim, Soon Ki;Choi, Yun Hwa;Lee, Hoan Jong;Son, Byong Kwan
    • Pediatric Infection and Vaccine
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    • v.4 no.1
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    • pp.126-132
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    • 1997
  • Measles outbreak in the world was decreased since measles vaccine had been introduced. Although vaccination rate is high, measles was not eradicated and measles reappeared among vaccinated children. We measured measles-specific antibody from the vaccinated and unvaccinated groups who had experienced apparent measles in the Seongnam city in 1993. The results were as follows. 1) The data included total 126 children (M:F=1 : 1). Age distribution of measles outbreak revealed 6 children in 5yr, 11 in 6yr, 20 in 7yr, 39 in 8yr, 22 in 9yr, 11 in 10yr, 11 in 11yr, and 6 in 12yr. 2) MMR vaccination rate was 78.6%(99/126) in the children who had experienced measles. Positive rate of measles-specific IgM Ab was 80.8% (80/99) among the vaccinated group and among 9E.6.% (25/27) the unvaccinated. 3) Positive rate of measles-specific IgG Ab was 90.9% (90/99) among MMR-vaccinated group, and 85.2% (23/27) in unvaccinated group. In conclusion, measles-specific IgM antibody have been detected more than 1 month in most patients. The relatively high proportion of measles-specific IgM positivity may mean primary vaccine failure. To booster the antibody titers and to prevent measles epidemic in school-aged children, revaccination of measles should be considered.

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Effects of Platycodi Radix ethanol extract on ovalbumin-induced allergic responses in mice (난알부민 유도 알레르기 면역반응에 대한 길경(桔梗)에탄올추출물의 효능 연구)

  • Jung, Jin Ki;Kang, Seok Yong;Kim, Jinwoong;Lee, Sang Kook;Park, Yong-Ki
    • The Korea Journal of Herbology
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    • v.27 no.6
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    • pp.123-129
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    • 2012
  • Objectives : Allergy has been described as an inflammatory with hypersensitivity resulting from seasonal or perennial responses to specific allergens. The root of Platycodon grandiflorum (Jacq.) A. DC.(Platycodi Radix; Campanulaceae) has been traditionally used to treat chronic diseases such as bronchitis, asthma, pulmonary tuberculosis, inflammation and hyperlipidemia. In this study, we examined the effect of 70% ethanol extract of Platycodi Radix (PR-E) on ovalbumin (OVA)-induced airway inflammation in mice. Methods : Mice were sensitized and challenged by OVA inhalation to induced chronic airway inflammation, and then were intragastrically administered PR-E extract at doses of 50 and 200 mg/kg/day from days 21 to 30 consecutively. The levels of allergic mediators such as histamine, OVA-specific immunoglobulin (Ig) E, and cytokines such as IL-4 and IFN-${\gamma}$ were measured in the sera of mice by ELISA. The histological change of lung tissue was observed by hematoxylin and eosin (H&E) staining. Results : PR-E extract significantly decreased the serum levels of histamine, OVA-specific IgE, and Th2 cytokine, IL-4 compared with those in the OVA-induced group. PE-E extract significantly increased the serum level of Th1 cytokine, IFN-${\gamma}$. Based on lung histopathological studies, inflammatory cell infiltration and mucus hypersecretion were inhibited by PE-E extract administration compared to that in the OVA-induced group. Conclusions : These findings indicate that PE-E extract may be useful as an adjuvant therapy for the treatment of bronchial asthma.

Sensitization of Food Allergen in Breastfed Infant with Atopic Dermatitis (아토피피부염에서 모유를 통한 식품 알레르겐에의 감작)

  • Han Young Shin;Chunk Sang Jin;Ahn Kang Mo;Shin Kwane;Choi Hay Mie;Lee Sang Il
    • Korean Journal of Community Nutrition
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    • v.10 no.3
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    • pp.264-270
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    • 2005
  • Breastfeeding has been known as the best feeding practice to prevent allergies including atopic dermatitis (AD) However, the benefit on the prevention of allergic disease is still controversial. The objectives of this study were to examine the rate of sensitization to the protein of eggs, cow's milk and soy in exclusively breastfed infants and to evaluate antigen-antibody reaction between breast milk and serum of AD infant. Data on feeding and food hypersensitivity were obtained for 62 AD infants (32 male, 30 female) aged < 6 month who had visited Samsung Medical Center from September 2001 to May 2003. Food hypersensitivity was determined by measuring specific IgE to egg, cow's milk and soy. Specific IgE levels > 0.7 kU/L by CAP assay (Pharmacia, Uppsala, Sweden) were considered positive. The rates of sensitization in breastfed infants were $41.9\%$ (26/62) to egg, $30.6\%$ (19/62) to milk and $18.0\%$ (11/62) to soy. Immunoblotting analyses were performed using breast milk with the matched serum of seven AD infants (4 male/3 female). Binding patterns of AD infant's IgE to breast milk extract showed visible specific band for immunoglobulin, especially in case of a lactating mother who did not completely restricted ingestion of egg, milk and soy. These results indicate that sensitization to food allergen develops via breast milk feeding. Breast milk feeding should be recommended in infants at risk of developing allergic disease, but maternal intake of highly allergenic food might be restricted for prevention and treatment of food allergy among the babies with AD.

Sensitization of Children to Storage Mites in Kutahya, Turkey

  • Akdemir, Cihangir;Soyucen, Erdogan
    • Parasites, Hosts and Diseases
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    • v.47 no.4
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    • pp.387-391
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    • 2009
  • Specific IgE against Acarus siro, Glycphagus domesticus, Tyrophagus putrescentiae, and Lepidoglyphus destructor have been investigated by ELISA in sera of 92 children. Of them, 41 were found to be specific IgE positive ($\geq$ 0.35 IU/ml) against at least one of house dust mite species, Dermatophagoides pteronyssinus and Dermatophagoides farinae, by an immunoblot. In 65.9% of the dust mite-sensitized children, specific IgE against at least one of these mite species was found. Sensitization levels, including co-sensitization cases were found to be 35.7% against A. siro, 24.4% against T. putrescentiae, 31.7% against L. destructor, and 26.8% against G. domesticus. In non-sensitized children, dust mite sensitization level was found to be 25.5%. Breakdown of sensitization by individual species in this group was; against A. siro and T. putrescentiae at 7.8%, against L. destructor at 13.7%, and against G. domesticus at 9.8%. When all children were reckoned, 43.5% was found to be sensitized against at least one storage mite species, with sensitizations against A. siro at 18.5%, T. putrescentiae at 26.1%, L. destructor at 21.7%, and G. domesticus at 17.4%. In dust samples collected from the dwellings of children, distribution of species was found to be A. siro (17%), G. domesticus (23%), T. putrescentiae (29%), L. destructor (25%), and unidentified (6%). In Fisher's chi-square test on SPSS program, there was a relationship between dust mite sensitization and storage mite sensitization (P < 0.05), but no meaningful relationship was found on the basis of individual mite species.

Anti-allergic Effects of Samhwangsasim-tang ($S{\bar{a}}nhu{\acute{a}}ngxi{\grave{e}}x{\bar{i}}nt{\bar{a}}ng$) on Ovalbumin-induced Allergic Model in Mice (삼황사심탕(三黃瀉心湯)이 난황 알부민으로 유도된 알레르기 Mouse모델에서 항알레르기 효과)

  • Choi, Chong-Hwan;Keum, Seon-Oh;Lee, Se-Won;Kim, Il-Hyun;Lee, Ha-Il;Song, Yung-Sun
    • Journal of Korean Medicine Rehabilitation
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    • v.24 no.3
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    • pp.71-85
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    • 2014
  • Objectives In this study, we investigated the inhibitory effects of Samhwangsasim-tang (S.H) on the allergic response caused by ovalbumin(OVA) sensitization and challenge in BALB/c mice. Methods The experimental animals were divided into five groups; 1) normal as negative control, 2) OVA-sensitized mice, 3) OVA-sensitized mice treated with 200 mg/kg of S.H 200, 4) OVA-sensitized mice treated with 400 mg/kg of S.H 400, and 5) OVA-sensitized mice treated with 5 mg/kg of Dexamethasone (Dex). Antigen sensitization for allergic mouse model was performed with twice injection of OVA for 2 weeks. After secondary injection, S.H was administrated orally into mice every day for 13 days and the inhibitory effect of S.H on allergic responses was evaluated. Results Treatment of S.H into allergic mice reduced significantly ear edema and infiltration of immune cells in ear tissues induced with OVA challenge in a dose-dependent manner. S.H reduced significantly the serum levels of Total Immunoglobulin(Ig)G and IgE, and particularly inhibited the production of OVA-specific IgE, but not OVA-specific IgG. The serum level of proinflammatory cytokine TNF-${\alpha}$ and Th2-associated cytokine IL-4 also were significantly decreased by S.H adminstration in a dose denpendent manner. S.H attenuated OVA-induced secretion of IFN-${\gamma}$, but not IL-12 which is a cytokine inducing the development of Th1 cells. It also reduced significantly the secretion of IL-4, which is a cytokine inducing the development of Th2 cells, after splenocytes were stimulated with OVA. However the secretion of IL-5 and IL-13 was influenced weakly or a little. Conclusions These results indicate that S.H could reduce the allergic response through inhibition of antigen-specific IgE and Th2-inducing cytokines. It suggest that S.H may be available clinically for the treatment of allergic patients.

Suppressive Effects of Gamisojaganggi-tang on Immunopathogenesis in OVA-induced Asthma Model (가미소자기탕(加味蘇子氣湯)이 천식 유발 병태 모델에서 분자 및 조직병리학적 변화에 미치는 영향)

  • An, Hwang-Yong;Kim, Dong-Hee
    • Journal of Physiology & Pathology in Korean Medicine
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    • v.20 no.5
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    • pp.1159-1165
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    • 2006
  • This study was done to investigate the effects of Gamisojaganggi-tang(GSGT) on immunopathologic changes in OVA-induced asthma model of mice. Pathologic indicators associated with this immune disease, which include cytokines, the number of immune-cells, immunoglobin E (IgE), were examined, and histological changes of bronchial tissues were also examined. The administration of GSGT significantly reduced the lung weight compared with control mice of OVA-induced asthma model. The administration of GSGT significantly reduced the number of total cells in BALF compared with control mice of OVA-induced asthma model. The administration of GSGT significantly reduced the number of eosinophil in BALF compared with control mice of OVA-induced asthma model. The administration of GSGT insignificantly increased the number of monocyte in BALF compared with control mice of OVA-induced asthma model. The administration of GSGT significantly reduced the number of lymphocyte in BAL compared with control mice of OVA-induced asthma model. The administration of GSGT significantly reduced the gene expression of eotaxin in lung tissue compared with control mice of OVA-induced asthma model. The administration of GSGT insignificantly reduced the IL-4 and IL-5 production in BALF compared with control mice of OVA-induced asthma model. The administration of GSGT insignificantly reduced the levels of total IgE and ovalbumin-specific IgE in BALF. The administration of GSGT significantly reduced the levels of ovalbumin-specific IgE whereas the serum levels of total IgE were insignificantly reduced compared with control mice of OVA-induced asthma model. The administration of GSGT moderately reduced bronchial alveolar narrowing, bronchiovascular edema and increase in the size of alveolar space, which shown in control mice of OVA-induced asthma model, in a dose dependent manner. Furthermore, GSGT reduced invasion of inflammatory cells, and proliferation of smooth muscle cells in bronchial tissue. These results suggested that GSGT has suppressive effects on pathologic changes associated with disease progression in asthma through the modulation of immune system. GSGT has potential to use as an anti-asthmatic agents.