• 제목/요약/키워드: allergy

검색결과 1,287건 처리시간 0.025초

Preventive Effects of a Probiotic Mixture in an Ovalbumin-Induced Food Allergy Model

  • Shin, Hee-Soon;Eom, Ji-Eun;Shin, Dong-Uk;Yeon, Sung-Hum;Lim, Seong-Il;Lee, So-Young
    • Journal of Microbiology and Biotechnology
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    • 제28권1호
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    • pp.65-76
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    • 2018
  • Although there has been a steady increase in the prevalence of food allergies worldwide in recent decades, no effective therapeutic strategies have been developed. Modulation of the gut microbiota composition and/or function through probiotics has been highlighted as a promising target for protection against food allergies. In this study, we aimed to investigate the allergy-reducing effects of a probiotic mixture (P5: Lactococcus lactis KF140, Pediococcus pentosaceus KF159, Lactobacillus pentosus KF340, Lactobacillus paracasei 698, and Bacillus amyloliquefaciens 26N) in mice with ovalbumin (OVA)-induced food allergy. Administration of P5 significantly suppressed the oral OVA challenge-induced anaphylactic response and rectal temperature decline, and reduced diarrhea symptoms. Moreover, P5 also significantly inhibited the secretion of IgE, Th2 cytokines (interleukin (IL)-4, IL-5, IL-10, and IL-13), and Th17 cytokines (IL-17), which were increased in mice with OVA-induced food allergy, and induced generation of CD4+Foxp3+ regulatory T cells. These results revealed that P5 may have applications as a preventive agent against food allergy.

결핵균의 유전자 분석법으로 증명된 가족 내 결핵 전파 1예 (Use of Molecular Identification Analysis in a Case of Intra-familial Transmission of Tuberculosis)

  • 박의주;김양기;복진현;이영목;김기업;어수택;박영길
    • Tuberculosis and Respiratory Diseases
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    • 제65권6호
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    • pp.512-516
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    • 2008
  • 결핵균은 공기를 매개로 전파되고 결핵균에 노출된 시간과 최초의 노출 정도가 전파의 위험을 증가 시키는 중요한 인자로 알려져 있다. 활동성 폐결핵 환자와 함께 생활하는 가족 내에서 감염이 현저히 증가하는데 이는 결핵균에 노출되는 기회 및 시간이 증가하기 때문이다. 하지만 고식적인 접촉자 조사만으로는 흔히 결핵 발생률을 과소평가할 수 있기 때문에 접촉자 조사와 결핵균의 유전형 조사를 병행하는 것이 감염의 위험이 높은 집단을 선별해내고 발생빈도 및 전염경로를 밝히는 데 보다 효과적인 것으로 보고되고 있다. 이에 접촉자 조사와 결핵균의 유전형 조사를 통해 가족 내 결핵균 전파를 증명한 1예를 보고하는 바이다.

Inhibitory effects of Gamichungsangbohatang on chemokines related asthma in A549 human epithelial cells

  • Jeong, Seung-Yeon;Lee, Sung-Hun;Roh, Young-Lae;Kim, Jae-Hwan;Jung, Hee-Jae;Jung, Sung-Ki
    • Advances in Traditional Medicine
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    • 제7권5호
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    • pp.518-526
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    • 2008
  • Recently a major goal in asthma therapy is to reduce or prevent the inflammatory response of airway. Eosinophilic accumulation in the tissue is a prominent feature of allergic diseases including asthma. Production of chemokines by bronchial epithelial cells may contribute to the allergic inflammation by recruiting eosinophils. In this study we evaluated the inhibitory effect of Gamichungsangbohatang (GMCSBHT), used traditionally in treating asthma, on secretion of chemokines for eosinophils in human A549 epithelial cells. Chemokines such as eotaxin, RANTES, IL-8 were inhibited in a dose-dependent manner, but IL-16 showed no inhibition by GMCSBHT. These findings indicate that GMCSBHT might be a therapeutic value in treating asthma by suppression of chemokines secretion associated with local accumulation of eosinophils.

보육시설 교사 및 운영자의 식품알레르기 인지도 조사 - 대전광역시 동구, 중구 지역을 중심으로 - (Survey of Food Allergy Perception of Teachers and Operators of Child Care Facilities - Focusing on Jung-gu and Dong-gu in Daejeon -)

  • 이은용;이선영
    • 대한영양사협회학술지
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    • 제24권3호
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    • pp.231-245
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    • 2018
  • This study was conducted to investigate the status of food allergy knowledge and management of the teachers and operators of child care facilities in the Daejeon Area. Surveys of 262 teachers and 50 operators of child care facilities in Dong-gu and Jung-gu in Daejeon were conducted. The prevalence of food allergies was found to be 3.6% (102 children). The average score of teachers in the anaphylaxis knowledge survey was $0.18{\pm}0.22$. Additionally, the needs for food allergy education among teachers and operators was 88.2% and 98%, respectively. The survey revealed that all child care facilities in this study provide food service menus to parents, but only 14 facilities (28%) provided alternative food to children with food allergies, and some of these 14 facilities did not provide adequate alternatives. To ensure the safety and healthy growth of children with food allergies, it is necessary to provide food allergy education to teachers and operators, as well as to establish safe food service and allergy management systems in all child care facilities.

Different Responses to Clarithromycin in Patients with Cryptogenic Organizing Pneumonia

  • Oh, Ji Hyun;Oh, Dong Jun;Koo, So-My;Kim, Yang Ki;Kim, Ki Up;Kim, Hyun Jo;Kim, Dong Won;Uh, Soo-Taek
    • Tuberculosis and Respiratory Diseases
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    • 제78권4호
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    • pp.401-407
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    • 2015
  • Cryptogenic organizing pneumonia (COP) is an idiopathic interstitial pneumonia characterized by a subacute course and favorable prognosis with corticosteroids. However, some patients show resistance to steroids. Macrolides have been used with success in those patients showing resistance to steroids. A few reports showed treatment failure with macrolides in patients with COP who were resistant to steroids. In this report, we described two cases of COP who showed different responses to clarithromycin. One recovered completely, but the other gradually showed lung fibrosis with clarithromycin.

광주광역시 광산구 보육시설 유아의 식행동과 식품알레르기 발생 현황 (Dietary Behaviors of Preschool Children and Food Allergy Prevalence of Preschool Childcare Facilities in Gwangsan-gu, Gwangju Metropolitan City)

  • 양은주
    • 한국식생활문화학회지
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    • 제35권1호
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    • pp.97-106
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    • 2020
  • This study aimed to evaluate dietary behaviors and food allergy status of preschool children in Gwangsan-gu, Gwangju Metropolitan city. The survey included 592 preschool children aged 1-5 years old in 31 childcare facilities. General characteristics, feeding type, complementary feeding, food allergy, dietary behaviors based on the NQ-P questionnaire, and dietary habits of their family were considered. Exclusively breast-fed children was 32.2% of the subjects and the breast feeding duration was 6.5 months. Subjects who had complementary feeding within 6 months was 77.2% and starting time of complementary feeding was 6.1 months. Fifteen percent of the subjects had food allergies and foods that induced allergy were instant foods, eggs, milk and dairy products, nuts, seafood. Food allergy was not related to breast feeding nor complementary feeding. The NQ-P score and its 3 factors including 'balance', 'moderation', and 'environment' were 59.9, 61.1, 56.0, 62.6, respectively. There were positive relations between children's dietary behaviors and family dietary habits such as breakfast eating frequency and meal regularity. As age of children increased, instant food intake increased and breakfast eating frequency decreased. Proper nutrition education is needed to children, their parents, and their care givers at childcare facilities to improve children's dietary behavior and health.

Food Allergy, a Newly Emerging Food Epidemic: Is the Current Regulation Adequate?

  • Lee, N. Alice
    • 한국식품위생안전성학회지
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    • 제27권4호
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    • pp.325-331
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    • 2012
  • Food allergy refers to an immunologically mediated adverse reaction to food, mainly to proteinaceous constituents. Health implications vary between those individuals who experience mild physical discomforts to those with fast-acting, life-threatening anaphylactic reactions. The prevalence of food allergy is higher in children than in adults, estimated around 4-8% and 1-2% respectively in developed countries. Food allergy has no effective cure at the present time and total avoidance of causative foods is the most reliable prophylactic method currently recommended by the medical community. To help food allergic patients to make informed choices of their foods, mandatory labeling of selected food allergens has been introduced in several countries. All food allergen labelling provisions specify a set of allergens common to the regulated countries. Policy divergence, however, exists between countries by inclusion of additional allergens unique to specific countries and enforcement of specific labelling requirements. Such variations in food allergen labelling regulations make it difficult to manage allergen labeling in imported pre-packaged food products. This paper addresses two current issues in food allergen regulation: 1) an urgent need to determine true prevalence of food allergy in the Asia-Pacific region. This will enable refinement to the food allergen regulation to be more country-specific rather than simply adopting CODEX recommendations. 2) There is an urgent need for harmonization of food allergen regulation in order to prevent food allergen regulation becoming a trade barrier.

Association between traffic-related environmental factors and allergy symptoms for children

  • LEE, Hyo-Sun;Han, Seong-Min;Kim, So-Yeun
    • International Journal of Advanced Culture Technology
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    • 제8권4호
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    • pp.137-143
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    • 2020
  • Traffic-related environmental factors (TREF) are a major problem in developed countries, leading to increased atopic sensitivity, allergy symptoms, and diseases. This study shows an association between traffic-related pollutants, distance of road and gas station from the children's daycare center, and allergy symptoms. Data was obtained from the 2018 survey, an ongoing allergic diseases prevalence survey for children aged 4-7 (n=1175). This survey considered 36 public daycare centers, across 6 districts in Seoul. Allergic symptoms were defined as the presence of at least 1 or more allergic diseases (International Study of Asthma and Allergies in Childhood (ISAAC)). TREF was derived from the distance to the nearest main roads and gas stations. Geographic data processing and variable computation were conducted using ArcGIS version 10.2. The odds ratios for allergy symptoms increased by 1.189 (1.235-2.679) times with decreasing distance to main roads and by 1.846 (1.176-2.896) times with decreasing distance to a gas station. This study concludes that main roads and gas-stations near children's daycare centers are related to the allergy symptoms in children.

Role of Methacholine PC20 in FEF25-75% for the Diagnosis of Bronchial Asthma

  • Son, Kyeong Min;Jang, Seung Hun;Kang, Hye Ryun;Han, Bo Ram;Kim, Joo Hee;Kim, Hyun Sung;Park, Sung Hoon;Hwang, Yong Il;Kim, Dong Gyu;Jung, Ki Suck
    • Tuberculosis and Respiratory Diseases
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    • 제67권4호
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    • pp.311-317
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    • 2009
  • Background: The methacholine bronchial provocation test is a useful tool for evaluating asthma in patients with normal or near normal baseline lung function. However, the sensitivity of this test is 82~92% at most. The purpose of this study is to evaluate the clinical usefulness of $FEF_{25-75%}$ in identification of airway hyperresponsiveness in patients with suspected asthmatic symptoms. Methods: One hundred twenty-five patients who experienced cough and wheezing within one week prior to their visiting the clinic were enrolled. Results: Sixty-four subjects showed no significant reduction of $FEV_{1}$ or $FEF_{25-75%}$ on the methacholine bronchial provocation test (Group I). In 24 patients, $FEF_{25-75%}$ fell more than 20% from baseline without a 20% fall of $FEV_{1}$ during methacholine challenge (Group II). All patients who had more than 20% fall of $FEV_{1}$ (n=37) also showed more than 20% of reduction in $FEF_{25-75%}$ (Group III). Baseline $FEV_{1}$/FVC (%) and $FEF_{25-75%}$ (L) were higher in group II than group III (81.51${\pm}$1.56% vs. 75.02${\pm}$1.60%, p<0.001, 3.25${\pm}$0.21 L vs. 2.45${\pm}$0.21 L, p=0.013, respectively). Group II had greater reductions of both $FEV_{1}$ and $FEF_{25-75%}$ than group I at 25 mg/mL of methacholine (p<0.001). The provocative concentration of methacholine causing a 20% fall in $FEF_{25-75%}$ in group II was about three-fold higher than that in group III. Conclusion: A 20% fall of $FEF_{25-75%}$ by methacholine provocation can be more sensitive indicator for detecting a milder form of airway hyperresponsiveness than $FEV_{1}$ criteria.