• 제목/요약/키워드: reduction of allergy

검색결과 49건 처리시간 0.033초

Comparison of Anti-allergenic Activities of Various Polyphenols in Cell Assays

  • Yun, Sang-Sik;Kang, Mi-Young;Park, Jun-Cheol;Nam, Seok-Hyun
    • Journal of Applied Biological Chemistry
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    • 제53권3호
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    • pp.139-146
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    • 2010
  • The inhibitory effects of 25 polyphenols against in vitro allergic reactions were compared using biochemical and cell assays. Three polyphenols including curcumin, gallic acid, and quercetin suppressed the release of $\beta$-hexosaminidase from ionophore A23187-stimulated RBL-2H3 cells more effectively (>50% inhibition at $100{\mu}M$ concentration). They were found to have potencies in suppressing the release of histamine not only from ionophore A23187-, but also from immunoglobulin E (IgE)-stimulated RBL-2H3 cells. Moreover, such suppressive effects of the three polyphenols were also observed in A23187 plus PMA-costimulated rat peritoneal mast cells. The extent of inhibition were quantified as the respective polyphenol concentration that inhibit 50% ($IC_{50}$) of $\beta$-hexosaminidase or histamine release, showing an inhibition tendency with decreasing order of curcumin>gallic acid>quercetin. Down-regulation of $Ca^{2+}$ influx was suggested as the cause of the inhibition of $\beta$-hexosaminidase and histamine releases in these cells. The immune process inhibition was confirmed by the observed reduction in the gene expressions and release of pro-inflammatory cytokine tumor necrosis factor (TNF)-$\alpha$, interleukin (IL)-$1\beta$, and IL-4, due probably to antioxidant activity of the polyphenols. These findings illustrate that curcumin, gallic acid, and quercetin may be beneficial against allergic inflammatory diseases.

Effects of enzymatic hydrolysis of buckwheat protein on antigenicity and allergenicity

  • Sung, Dong-Eun;Lee, Jeongok;Han, Youngshin;Shon, Dong-Hwa;Ahn, Kangmo;Oh, Sangsuk;Do, Jeong-Ryong
    • Nutrition Research and Practice
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    • 제8권3호
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    • pp.278-283
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    • 2014
  • BACKGROUND/OBJECTIVES: Due to its beneficial health effects, use of buckwheat has shown a continuous increase, and concerns regarding the allergic property of buckwheat have also increased. This study was conducted for evaluation of the hydrolytic effects of seven commercial proteases on buckwheat allergens and its allergenicity. MATERIALS/METHODS: Extracted buckwheat protein was hydrolyzed by seven proteolytic enzymes at individual optimum temperature and pH for four hours. Analysis was then performed using SDS-PAGE, immunoblotting, and competitive inhibition ELISA (ciELISA) with rabbit antiserum to buckwheat protein, and direct ELISA with pooled serum of 21 buckwheat-sensitive patients. RESULTS: Alkaline protease, classified as serine peptidase, was most effective in reducing allergenicity of buckwheat protein. It caused decomposition of the whole buckwheat protein, as shown on SDS-PAGE, and results of immunoblotting showed that the rabbit antiserum to buckwheat protein no longer recognized it as an antigen. Allergenicity showed a decrease of more than 50% when pooled serum of patients was used in ELISA. Two proteolytic enzymes from Aspergillus sp. could not hydrolyze buckwheat allergens effectively, and the allergenicity even appeared to increase. CONCLUSIONS: Serine-type peptidases appeared to show a relatively effective reduction of buckwheat allergenicity. However, the antigenicity measured using rabbit antiserum did not correspond to the allergenicity measured using sera from human patients. Production of less allergenic buckwheat protein may be possible using enzymatic hydrolysis.

Quality of Irradiated Plain Yogurt during Storage at Different Temperatures

  • Ham, J.S.;Jeong, S.G.;Lee, S.G.;Han, G.S.;Jang, A.;Yoo, Y.M.;Chae, H.S.;Kim, D.H.;Kim, H.J.;Lee, W.K.;Jo, C.
    • Asian-Australasian Journal of Animal Sciences
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    • 제22권2호
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    • pp.289-295
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    • 2009
  • To develop a safer yogurt for immuno-compromised or allergy patients and to extend shelf-life, a plain yogurt was irradiated with doses of 0, 1, 3, 5, and 10 kGy using a gamma ray and the chemical and microbiological quality and allergenicity change were investigated. There was no difference in the content of protein, total solid, and amino acids of the plain yogurt by irradiation treatment and different storage temperatures (4, 20, and $35^{\circ}C$). The lactic acid bacterial counts of irradiated plain yogurt had approximately 3-decimal reduction at 3 kGy, and no viable cell at 10 kGy regardless of storage time and temperature. The binding ability of rabbit antiserum to milk proteins in irradiated plain yogurt showed that 10 kGy of irradiation produced significantly higher binding ability than other treatments. Sensory evaluation indicated that only appearance of the plain yogurt irradiated at 3 kGy or higher had a lower value than the non-irradiated control when stored at $20^{\circ}C$. Results suggest that irradiation of plain yogurt does not significantly affect the chemical and sensory quality of plain yogurt, but can extend the shelf-life, possibly reduce allergenicity, and provide a safer product.

The relationships among birth season, sunlight exposure during infancy, and allergic disease

  • Hwang, Jung Min;Oh, Se Hyun;Shin, Mee Yong
    • Clinical and Experimental Pediatrics
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    • 제59권5호
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    • pp.218-225
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    • 2016
  • Purpose: The recent increase in the prevalence of allergic diseases is hypothetically attributed to immune dysregulation in turn caused by a reduction in exposure to sunlight. We explored relationships between birth season, sunlight exposure, exercise duration, and an allergic disease. Methods: We performed a questionnaire-based survey on allergic diseases among elementary school students. Birth time was categorized according to the season (summer and winter). Results: The prevalence of atopic dermatitis (AD) "symptoms ever" was higher in the children born in winter than in those born in summer (adjusted odds ratio [aOR], 1.24; 95% confidence interval [CI], 1.03-1.49; P=0.024). Birth in winter was associated with an increase in the "symptoms in the past 12 months" prevalence of food allergy (FA) (aOR, 1.56; 95% CI, 1.09-2.24; P=0.015). The lifetime prevalence of allergic diseases except FA was higher in the children whose parents considered their sunlight exposure prior to 24 months of ageas inadequate than those who considered their exposure as adequate ("diagnosis ever" asthma: aOR, 1.4; 95% CI, 1.17-1.67; P<0.001; allergic rhinitis [AR]: aOR, 1.4; 95% CI, 1.17-1.67; P<0.001; AD: aOR, 1.26; 95% CI, 1.06-1.51; P=0.01). Neither recent sunlight exposure nor exercise duration was associated with the prevalence of an allergic disease. Conclusion: Birth in winter may be associated with development of AD and FA. Inadequate sunlight exposure before the age of 24 months might possibly increase the risks of development of asthma, AR, and AD.

계획적 행동이론에 의한 초임 여성의 모유수유 실천의도 예측에 관한 연구 (A Study on Predicting Behavioral Intention of Breastfeeding among Primigravida)

  • 김지은;박동연
    • 대한지역사회영양학회지
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    • 제6권3호
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    • pp.331-339
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    • 2001
  • This study was conducted to examine the predicting factors for the intention of breastfeeding with The Theory of Planned Behavior. The questionnaires were distributed to 131 primigravidas who were in their third trimester of pregnancy in Seoul, Kyonggido, Kyongsangbukdo, and Kyongsnagnamdo. Descriptive statistics, Pearsons Correlation and Multiple Regression were used to analyse the data. The subjects showed strong intention of breastfeeding. The subjects showed favorable attitudes toward breastfeeding. This fact showed significant correlation with the belief that their breastfeeding intention was due to the advantage of breast milk for the infant with regard to allergy prevention, disease protection, contribution to intellectual development, psychological closeness between mother and infant, convenience, cost, and the reduction of breast cancer risk and weight of the mother. No item of outcome evaluation did showed significant correlation with behavioral intension. The subjects were influenced about breastfeeding by their referents such as siblings and friends with breastfeeding experience, their mothers and husbands, and mothers-in-law. Most items of the control beliefs had a significant influence on the intention of breastfeeding. The subjects felt they could not control the situation ie. "when I have to breastfeed in public". However they felt they could control the situation ie. "when I suffer from mastitis", "when I have to cut down on coffee, alcohol, and smoking", "when I have Caesarean section", "when I need to maintain breast condition", and "when the infant hates to suck my nipple". Regression analysis revealed that control beliefs and attitudes toward breastfeeding could predict the behavioral intention of breastfeeding. Control beliefs were the most important factor in predicting behavioral intention. Therefore, nutrition education is needed to enhance the ability to cope with difficult situations while breastfeeding and increase faborable attitudes toward breastfeeding.eding and increase faborable attitudes toward breastfeeding.

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알레르기 질환에서 장내미생물 조절을 통한 한약의 효과 연구동향 (Current Trends of Traditional Herbal Medicine Research on Allergic Disease with Dysbiosis)

  • 이윤정;김민희
    • 한방안이비인후피부과학회지
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    • 제37권1호
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    • pp.57-68
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    • 2024
  • Objectives : The purpose of this study is to analyze the current trends of various herbal medicine research on allergic disease with dysbiosis. Methods : Electronic searches were performed using Pubmed, Research Information Sharing Service(RISS), Korean studies Information Service System(KISS), Oriental medicine Advanced Searching Integrated System(OASIS). Results : We analyzed ten studies on the effect of herbal medicine on allergic disease with dysbiosis. Eight studies were animal experimental studies, and two were randomized clinical trial(RCT) study and one-group pretest-posttest research, respectively. Among the studies, three studies were on atopic dermatitis, two on allergic rhinitis, and five on asthma. All different herbal medicines were used in the studies. Changes in gut microbiota composition were observed in nine studies except for 1 RCT study. In eight animal experimental studies, there was significant reduction in allergy-related inflammatory markers. Six studies evaluated the change of metabolites related to gut microbiota and three of them showed significant increase in short-chain fatty acids(SCFA). Conclusion : This study provides current trends of studies on herbal medicine research on allergic disease with dysbiosis. Most research is conducted using animal experiments, and this is a relatively recent trend. These studies offer basic knowledge on the correlation between herbal medicine, gut microbiota, and anti-inflammatory effects in allergic disease.

Gefitinib 내성 후 Erlotinb과 한방 치료를 병행하여 호전된 뇌전이를 동반한 재발성 L858R 변이 비소세포폐암 환자 1례 (A Case Report of Recurrent L858R Mutation Non-Small-Cell Lung Cancer with Brain Metastases Treated with Erlotinib and Traditional Korean Medicine After Failure with Gefitinib)

  • 양정민;장권준;황우석
    • 대한한방내과학회지
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    • 제43권5호
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    • pp.838-853
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    • 2022
  • Objectives: The purpose of this study is to report the case of a patient with recurrent L858R mutation non-small-cell lung cancer with brain metastases treated with erlotinib and traditional Korean medicine after gefitinib failure. Methods: The patient was treated with erlotinib beginning in November 2021, and gamma knife surgery was performed on November 8, 2021. The dose of erlotinib was 150 mg/day every four weeks. At the same time, the patient was treated with traditional Korean medicine. Tumor size and cerebral edema were measured using computed tomography and magnetic resonance imaging, respectively. Adverse events were evaluated using the National Cancer Institute Common Terminology Criteria for Adverse Events, version 5.0. Results: After treatment with erlotinib and traditional Korean medicine for six months, the extent of the growing nodule in the right upper lobe decreased during the first three months and remained stable for the following three months. Peritumoral edema showed an increase three months after gamma knife surgery, but partial improvement of cerebral edema was confirmed with additional traditional Korean medicine six months after gamma knife surgery. The symptoms of discomfort and physical activity gradually improved. Conclusions: This case study suggests that the combination of EGFR-TKI and traditional Korean medicine may contribute to a reduction in tumor size and cerebral edema while improving quality of life.

급성 과두 걸림의 치료에서 퍼티 고무 인상재로 제작한 임시 전방위치장치의 적용 (Effect of Temporary Anterior Positioning Splint Using Putty Impression Material on Acute Closed Lock)

  • 송지희;김지현;권정승;안형준
    • Journal of Oral Medicine and Pain
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    • 제37권4호
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    • pp.221-225
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    • 2012
  • 폐구성 과두 걸림이라고도 하는 비정복성 관절원판변위는 관절원판이 과두로부터 전위되어 과두 운동 시에 정상위치로 되돌아가지 않는 임상상태를 말한다. 비정복성 관절원판변위가 급성으로 나타난 경우에는 초기 치료에서 수조작에 의한 관절원판의 정복을 시도하여야 한다. 일반적으로 과두 걸림 발생 후 1주일 이내에 수조작술을 시행하는 경우에는 대개 성공적으로 관절원판이 정복되는 경우가 많지만 그 이상 경과된 경우에는 성공률이 떨어지는 것으로 알려져 있다. 수조작술을 통해 관절원판의 정복이 일어난 이후에는 전방위치 교합장치를 즉시 장착시켜서 폐구성 과두 걸림이 다시 발생하지 않도록 하는 것이 좋다. 하지만 전방위치장치를 제작하는데 시간이 많이 소요되므로 임상에서 즉시 제작하여 장착하기는 현실적으로 어려운 경우가 많다. 또한 전방위치장치를 제작하기 전까지 자가 중합 아크릴릭 레진을 이용한 임시 전방위치 장치를 제작하여 사용하는 방법도 레진의 냄새로 인한 불편감 및 시간 소요 등으로 널리 이용되고 있지는 않다. 또한 레진 알러지가 있거나 교정 치료 중이어서 레진을 사용하기 어려운 경우, 또는 행동조절이 불가능한 일부 환자들에게는 이 장치를 적용하기 어렵다. 따라서, 수조작술을 통해 관절원판이 정복된 경우 레진 대신 퍼티 고무 인상재를 이용하여 임시 전방장치를 제작한 후 단기간 적용하여 폐구성 과두 걸림을 치료한 증례를 통해 그 효용성을 확인해 보고자 하였다.

Microwave, 초음파 및 초고압 처리에 의한 돼지 혈청 알부민의 항원성 변화 (Changes in Allergenicity of Porcine Serum Albumin by Microwave, Sonication, and High Hydrostatic Pressure)

  • 김꽃봉우리;김서진;이소영;송유진;안동현
    • 한국축산식품학회지
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    • 제28권4호
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    • pp.499-504
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    • 2008
  • Microwave,초음파 및 초고압 처리에 의한 PSA의 항원성 변화를 살펴본 결과는 다음과 같다. microwave처리에 의한 변화를 알아본 결과 처리시간이 증가함에 따라 PSA와 항체와의 결합력이 감소하였으며 특히 10분 처리 시에 약 30% 정도로 가장 낮은 결합력을 나타내었다. SDS-PAGE 결과에서는 5, 10분 처리 시에 PSA band가 많이 약화되었으며 immunoblotting에서도 5, 10분 처리한 PSA가 항체와 거의 반응하지 않았다. 하지만 열을 배제하고 microwave 처리한 경우에는 처리구 모두 큰 변화 없이 높은 결합력을 유지하였다. 초음파 처리(5, 10, 30 및 60분)에 의한 PSA의 항원성 변화를 살펴본 결과에서는 초음파 처리구 모두 약 78% 정도의 높은 결합력을 보였으나 immunoblotting에서는 초음파 처리한 PSA가 항체와 거의 반응하지 않았다. PSA에 초고압 처리(200, 300 및 400 MPa)한 후 항원성 변화를 살펴본 결과 초고압 처리구 모두 PSA와 항체와의 결합력이 약 98%로 높은 결합력을 유지하였으며 immunoblotting에서도 초고압 처리구의 PSA가 항체와 강하게 결합하였다. 이상의 결과를 종합해 볼 때 열을 배제한 microwave, 초음파 및 초고압 처리는 PSA의 항원성을 감소시키지 못하였으나 열을 배제하지 않은 microwave 처리는 시간이 증가함에 따라 PSA의 항원성을 크게 감소시켰으므로 이를 저 알레르기 돼지고기 식품 개발에 응용할 수 있을 것으로 사료된다.

The Study on Service Design Development for Pharmacy Users: Using Smart Phone Application

  • Lee, Dong-Min;Park, Hye-Jung;Lee, Dong-In
    • 대한인간공학회지
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    • 제31권1호
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    • pp.93-100
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    • 2012
  • Objective: This study is to review the current state of services offered to pharmacy users, and develop a service design converging a prescription service and a smart phone application service in order to enhance patients' experience at pharmacies and home. Background: Under the new medical system; separation of prescribing and dispensing drugs, a doctor writes a prescription to their patients and patients have their prescription filled at the pharmacy. As the number of flue, allergy and atopy patients has increased, waiting lines have been longer at pharmacies. Besides, the current medical service system lacks of providing proper information on prescribed pills to patients. There are already services offered during waiting times such as offering free drinks, magazines or suggesting general drugs which you can buy without prescription, however they neither cover the current medical service's shorts nor shorten the waiting time. Method: I researched objective and perceived waiting times reduction methods, the current service status at pharmacies, and the government's policy direction in a medical service. Also, I observed a patient's journey from the hospital to pharmacy and then home. I examined the circumstance at pharmacies, patients' behaviors and their thoughts during their journey, and extracted three main goals to design a service in order to help patients have positive perception during the waiting time; (1) to reduce the perceived time by the way of visualizing time and offering readings about what patients consider necessary, (2) to educate patients what they are into and how to get through, (3) to establish trust among patients, doctors and pharmacists. Based on three goals, I designed a structure and a wireframe for a new service application of smart phones. Results: With a new service design for pharmacy users, users can track their medical record and visit the information about their current medical treatments anytime. Also the service helps patients build reliable relationships with doctors and pharmacists. Conclusion: Experience is not just an activity but series of multiple activities. The serving range of a medical service should not be determined by stakeholders but user's holistic experience. By approaching a service design with a holistic vision, it can enrich not only a temporary experience but also a whole life well being. Application: Since there are already many service applications advising patients about their illness and finding right doctors, this service design is focused on the experience from getting a prescription till feeling better. The next move is to combine those two parts medical services and design an integrated service application. As a prescription is going to be coded in numbers, we might consider to design an un-attended pharmacy which can shorten huge amount of time for filling prescriptions.