• Title/Summary/Keyword: Serum specific IgE

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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.

Effect of Oral Probiotics (Bifidobacterium lactis AD011 and Lactobacillus acidophilus AD031) Administration on Ovalbumin-Induced Food Allergy Mouse Model

  • Kim, Ji-Yeun;Choi, Young-Ok;Ji, Geun-Eog
    • Journal of Microbiology and Biotechnology
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    • v.18 no.8
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    • pp.1393-1400
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    • 2008
  • Recent study has demonstrated an increasing prevalence of food allergy in Korean children. Specific probiotic bacteria may promote potentially anti-allergenic processes through induction of Th1-type immunity and enhance the regulatory lymphocyte. This study investigated whether orally administrated probiotics could suppress allergic responses in an ovalbumin (OVA)-induced allergy mouse model. Thus, female C3H/HeJ mice were orally sensitized with OVA and cholera toxin for 4 weeks. Lactobacillus acidophilus AD031, Bifidobacterium lactis AD011, and L. acidophilus AD031 plus B. lactis AD011 were fed to mice from 2 weeks before the sensitization. The OVA-induced mice that were not treated with probiotics had significantly increased serum levels of OVA-specific IgE and IgG1, and OVA-specific IgA in feces. However, the mice treated with probiotics suppressed production of the OVA-specific IgE, IgG1, and IgA. The level of IL-4 was significantly lower, and the levels of INF-$\gamma$ and IL-10 were significantly higher in the mice treated with probiotics than that in the non-treated mice. The groups treated with probiotics had decreased levels of degranulated mast cells, eosinophil granules, and tail scabs. These results indicate that L. acidophilus AD031 and B. lactis AD011 might be useful for the prevention of allergy.

Effects of coffee intake on airway hypersensitivity and immunomodulation: an in vivo murine study

  • Ying-Chi Wong;Wen-Cheng Hsu ;Tzee-Chung Wu ;Ching-Feng Huang
    • Nutrition Research and Practice
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    • v.17 no.4
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    • pp.631-640
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    • 2023
  • BACKGROUND/OBJECTIVES: Coffee is a complex chemical mixture, with caffeine being the most well-known bioactive substance. The immunomodulatory and anti-inflammatory properties of coffee and caffeine impact health in various aspects, including the respiratory system. The objective is to investigate the effects of coffee and caffeine on airway hyperresponsiveness and allergic reactions, as well as to analyze and compare associated cytokine profiles. MATERIALS/METHODS: BALB/c mice were intraperitoneally sensitized with ovalbumin (OVA) and given OVA inhalation to induce airway hypersensitivity. Two weeks after sensitization, they were intragastrically gavaged with coffee or caffeine, both containing 0.3125 mg caffeine, daily for 4 weeks. Control mice were fed with double-distilled water. Serum OVA-specific antibody levels were measured beforehand and 5 weeks after the first gavage. Airway hyperresponsiveness was detected by whole body plethysmography after gavage. Cytokine levels of bronchoalveolar lavage and cultured splenocytes were analyzed. RESULTS: Coffee effectively suppressed T helper 2-mediated specific antibody response. Airway responsiveness was reduced in mice treated with either coffee or caffeine. Compared to the control, coffee significantly reduced OVA-specific immunoglobulin (Ig) G, IgG1 and IgE antibody responses (P < 0.05). Caffeine also attenuated specific IgG and IgG1 levels, though IgE level was unaffected. Coffee significantly reduced interleukin (IL)-4 and increased IL-10 concentration in spleen cells and bronchoalveolar lavage fluid (P < 0.05). CONCLUSIONS: Coffee effectively attenuated airway hyperresponsiveness and systemic allergic responses induced by OVA food allergen in mice. As a complex composition of bioactive substances, coffee displayed enhanced immunomodulatory and anti-inflammatory effects than caffeine.

The Study on the Antiallergic Action of Poncirus trifoliata (지실(枳實)의 항알러지 작용에 대한 연구)

  • Kim, Hyeong-Kyun;Lee, Eun-Jeong;Kweon, Yong-Taek;Hwang, Kwang-Ho;Joo, Hong-Hyun;Song, Bong-Keun
    • The Journal of Internal Korean Medicine
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    • v.21 no.1
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    • pp.156-161
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    • 2000
  • The unripe fruit of Poncirus trifoliata Raf has been used for the treatment of allergic disease. Recently it was reported that the fruit inhibits passive cutaneous anaphylaxis and histamine release at mast cell. Type I immediate hypersensitivity of anaphylactic type is caused by released mediate chemical at mast cell. Histamine is also known as one of potent mediate chemical. Also release of mediate chemical is affected by specific stimulation of IgE combined with mast cell. Activation of mast cell is known to be stimulated by compound 48/80 and inhibited by increase of cAMP. In this experiment, the effect of water extract of Poncirus trifoliata Raf fruit (PT) on a histamine release, cAMP concentration and IgE production was measured. Compound 48/80 was administrated to the mouse peritoneal cell which was pretreated with PT. PT dosedependently inhibited histamine release at peritoneal mast cell and the serum level of histamine induced by compound 48/80. PT also instantly increased cAMP level of peritoneal mast cell right after it was added and the level gradually decreased. Production of IgE induced by antigens at mouse peritoneal cell was inhibited by PT. The IgE synthesis is induced by IL-4 and it is known that lipopolysaccharide(LPS) plus IL-4 cause an increase in IgE secretion by murine B cells. The effects of PT inhibited the production of IgE activated by LPS plus IL-4 at human U266B1 cells. These results indicate that PT has antiallergic activity by Inhibition of IgE production from B cells and histamine release by increase of cAMP.

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Study of Complementary Medical Therapy for Allergic Rhinitis in PubMed (PubMed를 통해 살펴 본 알레르기 비염에 대한 보완 의학적 최신 연구 경향)

  • Jung, Hye-Mi;Cho, Min-Jung;Seo, Un-Kyo
    • The Journal of Internal Korean Medicine
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    • v.30 no.3
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    • pp.534-549
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    • 2009
  • Objectives : To study trends in complementary medical therapy for the allergic rhinitis. This study analyzed research on allergic rhinitis in PubMed. Methods : We searched PubMed related to complementary medical therapy for allergic rhinitis. We analyzed 25 research papers and examined published journals, years countries, and their methods, objectives, results, interventions, participants, periods and instruments of assessment. Results : The method of studies was mostly randomized, double-blind, placebo-controlled trial. There were research papers concerning treatment and prevention with herbal medicine, acupuncture, diet, etc. There were more positive results compared to negative results for treatment and prevention. Most studies were carried out during the winter/spring period. The median for number of participants was 90.54 persons. Diagnostic criteria for enrolment were nasal symptoms, allergic skin test, serum, nasal discharge allergen specific IgE eosinophil, etc. Assessment for outcomes were nasal symptoms, serum, nasal discharge allergen specific IgE eosinophil and Quality of Life Questionnaire. Conclusions : It is necessary to study effects of acupuncture and herb medicines for allergic rhinitis and more in-depth research about trends in complementary medical therapy for allergic rhinitis.

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Five cases of ocular toxocariasis confirmed by serology

  • Park, Sung-Pyo;Park, In-Won;Park, Hyun-Young;Lee, Soo-Ung;Huh, Sun;Magnaval, Jean Francois
    • Parasites, Hosts and Diseases
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    • v.38 no.4
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    • pp.267-273
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    • 2000
  • We report 5 cases of ocular toxocariasis in Korean adults complaining of visual impairment along with floating or bubbling sensation. Fundoscopic examination revealed a retinal detachment along with exudate in 4 cases. They all showed typical reaction by ELISA and immunoblot against Toxocra excretory-secretory antigen. One case showed high level of anti-Toxocara IgE antibodies (34.000 Toxocara units/L) as well as increased level of serum total IgE antibodies and the specific IgE antibodies for 3 inhalant antigens, suggesting that high level of anti-Toxocara IgE antibodies was associated with an atopic status. Clinical manifestations were improved after the sequential use of steroids then mebendazole. We also suggest that ocular toxocariasis should be thoroughly investigated even when an evocative uniocular inflammatory lesion is encountered in peripheral retina without a systematic disease.

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The effects of antibodies and complement in macrophage-mediated cytotoxicity on metacercariae of the lung fluke, Paragonimus westeymani (폐흡충(Paragonimus Tuestermani) 피낭유충에 대한 대식세포의 세포독성에 있어서 항체 및 보체가 미치는 영향)

  • 민득영;안명희
    • Parasites, Hosts and Diseases
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    • v.28 no.2
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    • pp.91-100
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    • 1990
  • Paragonimus westermani is a tissue migrating parasite in the early stage until arriving at lung, and most of the parasites spend their life spans there. Considerable immune responses including activation of macrophages are taken place during the residence of parasites in the host. However, concerning the immunologic defense mechanisms of the host against this parasite, only a few document is available so far. In this study, the cytotoxic effect of peritoneal macrophages under the presence of antibody and/or complement against metacercariae of F. westermani was investigated in vitro. Metacercarlae were collected from the crayfish, Cambaroides similis and hatched out in Tyrode solution (pH 7.4). Plastic adherent cells from normal or infected rat (Wistar) peritoneal exudates were used as experimental macrophages. Polyclonal antibodies were obtained from infected rats and a cat. Cat IgG was fractioned with ion exchange chromatography. Fresh rabbit complement was used according to experimental scheme. Various combinations of peritoneal macrophages, normal or infected rat serum, complement and cat IgG were incubated at $36^{\circ}C$ in 5% $CO_2$ incubator for 6, 14, 24 and 48 hours. The results obtained were as follows: 1. P. westermani infection activated peritoneal macrophages non-specifically and this activation induced increases of cell adherence and cytotoxicity on metacercariae. 2. In the presence of infected rat serum the antibody.dependent cell-mediated cytotoxicity of peritoneal macrophages on metacercariae was significantly increased and showed a peak at 6-hour incubation. But the cytotoxic effect was markedly reduced after inactivation of complement and heat.labile IgE antibody by the heating of infected serum at 56$^{\circ}C$ for 30 minutes. 3. The highest cytotoxic effect (100%) of concomitant incubation with IgG and complement showed 24 hours after incubation, although cell adherence was relatively low at 6-hour incubation and 0% at 24-hour incubation. 4. Coordinative functions of complement with serum and IgG were effective in cell adherence and in cytotoxicity, but it is not clear the independent role of complement on the macrophage- mediated cytotoxicity in this study- With these results it is assumed that P. westermani infection can induce the non-specific activation of peritoneal macrophages, and strum antibodies including IgE antibody might enhance the cytotoxicity by macrophages,

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Effects of the ethanol extract of Codonopsis Pilosulae Radix on ovalbumin-induced allergic responses in mice (난알부민 유도 알레르기 면역반응에 대한 당삼(黨參)에탄올추출물의 효능 연구)

  • Kang, Seok Yong;Jung, Jin Ki;Lee, Sang Kook;Lee, Seung Ho;Park, Yong-Ki
    • The Korea Journal of Herbology
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    • v.28 no.2
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    • pp.9-15
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    • 2013
  • Objectives : The root of Codonopsis pilosula (Fr.) Nannf. (Codonopsis Pilosulae Radix) has been traditionally used as a oriental medicine with an anti-thrombotic, antidiabetic, anticancer, and anti-gastric ulcer effects and immunological adjuvant. In this study, we investigated the effect of 70% ethanol extract of Codonopsis Pilosulae Radix (CPR-E) on ovalbumin (OVA)-induced allergic responses in mice. Methods : Mice were sensitized (1, 8, and 15 days) with OVA and airway challenged(22, 24, 26, 28, and 30 days) to induced allergic responses. CPR-E extract at doses of 50 and 100 mg/kg/body weight was orally administered from days 21 to 30 consecutively. The levels of allergic mediators such as histamine, OVA-specific immunoglobulin (Ig) E, and Th1/Th2 cytokines such as IFN-${\gamma}$ and IL-4 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 : CPR-E extract significantly decreased the serum levels of histamine, OVA-specific IgE, and IL-4 compared with those of OVA control group, but significantly increased the serum level of IFN-${\gamma}$. Based on H&E staining, CPR-E extract inhibited the infiltration of inflammatory cells into lung tissues with histological changes. Conclusions : These results indicate that CPR-E extract has anti-inflammatory and anti-allergic responses through regulating the cytokine balance, suggesting that the extract may be useful for the treatment of allergic inflammatory diseases such as bronchial asthma and allergic rhinitis.

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.

Detection of Serum IgG and IgM Antibody in Rats Experimentally Infected with Echinostoma hortense (호르텐스극구흡충을 실험적으로 감염시킨 흰쥐에서 IgG/IgM 항체가 변화)

  • Ji-Sook Lee;Yong-Suk Ryang;Kyu-Jae Lee;Jang-Keun Ryu
    • Biomedical Science Letters
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    • v.5 no.2
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    • pp.147-153
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    • 1999
  • The changes of antibody titer were observed in rats which were experimentally infected with Echinostoma hortense metacercaria. Serum levels of IgG and IgM were measured by enzyme-linked immunosorbent assay (ELISA). The mean absorbance values obtained for specific-IgG were from 0.130$\pm$0.014 (mean$\pm$S.D.) to 0.480$\pm$0.073. The peak appeared in the 4th week after infection, then declined slowly during the 5th and 6th week, although mild elevation apperared in the 8th week. The mean absorbance values of specific-IgM were detected from 0.160$\pm$0.034 to 0.409$\pm$0.084. The peak value (0.409$\pm$0.084) was on the 14th day after infection, then declined on the 8th week. Results showed that the assay could be used for detection of E. hortense infection in experimentally infected rats or laboratory experiments where evidence of infection is required.

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