• Title/Summary/Keyword: Food Hypersensitivity

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Milk Allergens (우유의 알레르기 유발물질)

  • Kim, So-Young;Oh, Sang-Suk;Ham, Jun-Sang;Seol, Kuk-Hwan;Kim, Hyoun-Wook;Han, Sang-Ha;Choi, Eun-Young;Park, Beom-Young;Oh, Mi-Hwa
    • Journal of Dairy Science and Biotechnology
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    • v.30 no.1
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    • pp.17-22
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    • 2012
  • Since the prevalence of allergies is increasing, food allergy is a major concern for consumers, as well as for the food industry. The foods that account for over 90% of all moderate to severe allergic reactions to food are milk, eggs, peanuts, soybeans, fish, shellfish, wheat, and tree nuts. Of these food allergens, milk is one of the major animal food allergens in infants and young children. Milk is the first food that an infant is exposed to; therefore, the sensitization rate of milk in sensitive individuals is understandably higher. The mechanisms involved in allergic reactions caused by this hypersensitivity are similar to those of other immune-mediated allergic reactions. The reactions occur in the gastrointestinal tract, skin, and respiratory tract, with headaches and psychological disorders occurring in some instances. The major allergenic proteins in milk are casein, ${\beta}$-lactoglobulin, and ${\alpha}$-lactalbumin, while some of the minor allergenic proteins are lactoferrin, bovine serum albumin, and immunoglobulin. Reliable allergen detection and quantification are essential for compliance with food allergen-labeling regulations, which protect the consumer and facilitate international trade.

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Changes of Binding Ability of Milk-Hypersensitive Patients질 IgE to Gamma-Irradiated Milk Proteins (감마선 조사된 우유단백질에 대한 우유 알러지 환자의 IgE 결합능의 변화)

  • 조경환;육홍선;이주운;이수영;변명우
    • Journal of the Korean Society of Food Science and Nutrition
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    • v.30 no.3
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    • pp.505-509
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    • 2001
  • This study was carried out to evaluate the application of food irradiation technology as a method for reducing milk allergies. Bovine $\alpha$-casein, $\beta$-casein, $textsc{k}$-casein, $\alpha$-lactalbumin(ALA), $\beta$-lactoglobulin (BLG) and serum albumin (BSA) were used as model allergens of milk proteins and the proten solution (2.0 mg/mL) with 0.01 M phosphate buffered saline (pH 7.4) was irradiated at 3, 5 and 10 kGy. Using milk-hypersensitive patients IgE (MHP-IgE), the changes of binding ability to irradiated proteins were observed by competitive indirect enzyme-linked immunosorbent assay (Ci-ELISA). Affinity of MHP-IgE to milk proteins was higher in ALA and BLG than that of other proteins. Standard curve to each non-irradiated protein could be made with MHP-IgE for quantifying milk allergens. Binding abilities of MHP-IgE to the irradiated proteins, however, decreased with different slopes of the standard curves. Sensitivity of gamma irradiation was higher in ALA and BLG than of other proteins. These results indicated that irradiation technology can be used to reduce the milk hypersensitivity.

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The Effects of Several Types of Bibimbabs on Immune Activities in Mice (여러 가지 비빔밥의 섭취가 생쥐의 각종 면역 활성에 미치는 효과)

  • Kim, Nam-Seok;Cho, Mun-Ku;Oh, Suk-Heung;Choi, Dong-Seong;Jung, Mun-Yhung;Woo, Ja-Won;Kwon, Jin;Kim, Dong-Hun;Oh, Chan-Ho
    • Journal of the East Asian Society of Dietary Life
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    • v.23 no.1
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    • pp.23-30
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    • 2013
  • The purpose of this study was to evaluate the effects of several types of bibimbab (a Korean traditional meal of mixed rice with assorted vegetables), on various immune activities. Compared to control animals in a mouse model (given hamburgers), the oral administration of a portion of bibimbab containing wild plants significantly increased splenic B/T, thymic Th lymphocyte subpopulations, serum IFN-${\gamma}$ production, and enhanced hemagglutination titers up to 300%. Also, a consumption of mushroom-bulgogi bibimbab and Jeonju-style bibimbab markedly decreased compound 48/80-induced systemic anaphylaxis (immediate hypersensitivity), while bibimbab with wild plants inhibited SRBC-induced delayed type hypersensitivity. These results suggest that bibimbab with wild plants both up-regulate on immune activities and have anti-allergenic properties.

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.

Food allergy (식품알레르기)

  • Jaechun Lee;Cheol-Woo Kim
    • Journal of Medicine and Life Science
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    • v.19 no.3
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    • pp.90-94
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    • 2022
  • Food allergy is one of the adverse food reactions, which is developed by immunological reactions. Food allergy is increasing in prevalence among children and adults. In the diagnosis, food challenge is confirmative with history and laboratory tests. Avoidance of culprit food is the only preventive method, especially in patients with severe symptoms. In some food allergies, cross-reactivity among allergens should be considered. Latex-fruit/vegetable syndrome and pollen food allergy syndrome are well-understood phenotypes of food allergy related to cross reaction. Red meat allergy is recently described as one of tick-borne diseases. In a rare phenotype of food-dependent exercise-induced anaphylaxis, factors affecting the absorption of food allergen are important in its pathophysiology.

Clinical Diagnosis and Its Medical Managements from Patients with Gastrointestinal Diseases (위장관 질환자의 임상진단과 치료방법)

  • 김재웅
    • The Korean Journal of Food And Nutrition
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    • v.10 no.2
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    • pp.186-192
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    • 1997
  • Endoscopic diagnosis and medical management from K43 and C45 patients, whose sex, occupation, character and life patterns are quite different each other, were discussed. The K43 was patient with erosive gastritis, which may caused by maldietary habits and life stresses. Although the effective drugs such as H2-receptor antagonists with atacids, H+/K+-pump inhibitors, prokinetics, colloidal bismuth, and sucralfates, were administrated for long time, symptomatic relief of abdominal pain was not improved. The tests of clinical phathology and abdominal sonogram were normal, visceral hypersensitivity was appeared from barostat test of stomach. However C45 had taken headache during every day life, and endoscopically confirmed as a gastric·duodenal ulcer patiant, which may caused by chronic use of NSAIDs. The her ulceric symptoms were suppressed from active stage to healing stage by using combination therapy for H. pylori with traditional antipeptic ulcer drugs, where as amitriptyline was administrated to the K43 but not effective. Nonulcer dyspepsia and irritable bowel syndrome is pooly defined, and affect about 15% of the population annually in U. S. A. but don't seek medical care. Author would like to point out that statistics for visceral pains are absent in Korea.

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Food allergies and food-induced anaphylaxis: role of cofactors

  • Shin, Meeyong
    • Clinical and Experimental Pediatrics
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    • v.64 no.8
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    • pp.393-399
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    • 2021
  • Food allergies and food-induced anaphylaxis are important health problems. Several cofactors modulating the onset of anaphylaxis have been identified. In the presence of cofactors, allergic reactions may be induced at lower doses of food allergens and/or become severe. Exercise and concomitant infections are well-documented cofactors of anaphylaxis in children. Other factors such as consumption of nonsteroidal anti-inflammatory drugs, alcohol ingestion, and stress have been reported. Cofactors reportedly play a role in approximately 30% of anaphylactic reactions in adults and 14%-18.3% in children. Food-dependent exercise-induced anaphylaxis (FDEIA) is the best-studied model of cofactor-induced anaphylaxis. Wheat-dependent exercise-induced anaphylaxis, the most common FDEIA condition, has been studied the most. The mechanisms of action of cofactors have not yet been fully identified. This review aims to educate clinicians on recent developments in the role of cofactors and highlight the importance of recognizing cofactors in food allergies and food-induced anaphylaxis.

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.

Effects of Swainsonine on the Cell-mediated Immune Responses of Lipopolysaccharide (리포포리사카라이드의 세포성 면역반응에 미치는 스와인소닌의 영향)

  • Chae, Byeong-Suk;Ahn, Young-Keun;Kim, Joung-Hoon
    • YAKHAK HOEJI
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    • v.42 no.1
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    • pp.75-81
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    • 1998
  • Effects of swainsonine (SW: 8${\alpha}$, ${\beta}$-indolizidine-1alpha, 2${\alpha}$, 8${\beta}$-triol from Locoweed) on the cellular and nonspecific immune responses of lipopolysaccharide (LPS) wer e studied in ICR mice. Mice were divided into 4 groups (10mice/group), and LPS was given to each mouse 1 hr after i.p. injection with 3.7mg/kg of SW by i.p. injection twice a week for 14 days at a dose of 2mg/kg. Immune responses of the delayed-type hypersensitivity response (DTH) to sheep red blood cells (s-RBC), phagocytic activity and natural killer (NK) cell activity were evaluated. LPS treatment didn`t affect NK cell activity, phagocytic activity, DTH to s-RBC compared with those in controls, and phagocytic activity of sareoma 180 tumor bearing mice. However, circulating leukocytes were significantly decreased. Combinaton of LPS and SW increased circulating leukocytes significantly compared vath that in LPS alone, and DTH to s-RBC, NK cell activity and phagocytic activities of normal and sarcoma tumor bearing mice were not affected. These findings indicate that SW didn`t affected the cellular immune responses suppressed by LPS but significantly increased circulating leukocytes.

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Is This Symptom Even a Food Allergy?: Clinical Types of Food Protein-induced Enterocolitis Syndrome

  • Hwang, Jin-Bok
    • Pediatric Gastroenterology, Hepatology & Nutrition
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    • v.17 no.2
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    • pp.74-79
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    • 2014
  • Food protein-induced enterocolitis syndrome (FPIES) is an under-recognized non-IgE-mediated gastrointestinal food allergy. The diagnosis of FPIES is based on clinical history, sequential symptoms and the timing, after excluding other possible causes. It is definitively diagnosed by an oral food challenge test. Unfortunately, the diagnosis of FPIES is frequently delayed because of non-specific symptoms and insufficient definitive diagnostic biomarkers. FPIES is not well recognized by clinicians; the affected infants are often mismanaged as having viral gastroenteritis, food poisoning, sepsis, or a surgical disease. Familiarity with the clinical features of FPIES and awareness of the indexes of suspicion for FPIES are important to diagnose FPIES. Understanding the recently defined clinical terms and types of FPIES is mandatory to suspect and correctly diagnose FPIES. The aim of this review is to provide a case-driven presentation as a guide of how to recognize the clinical features of FPIES to improve diagnosis and management of patients with FPIES.