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Peanut allergies

M N Kim, K E Lee, J Y Hong, K W Kim, K-E Kim, M H Sohn, J W Park
BACKGROUND: Peanut allergies are common and can be life-threating for sensitised individuals. Peanut allergens share significant amino acid homology with those of other legumes and tree nuts, but their cross-reactivity still remains unclear. OBJECTIVE: We sought to determine the clinical significance of the cross-reactivity of peanut allergens with those of walnut and soybean. METHODS: Pooled sera from eight subjects with both peanut and walnut specific IgE were investigated in an inhibition test...
October 7, 2016: Allergologia et Immunopathologia
Santiago Alvarez-Arango, Angela Hou, Michelle A Lowes, Elina Jerschow
No abstract text is available yet for this article.
September 23, 2016: Annals of Allergy, Asthma & Immunology
T Banti, A Carsin, B Chabrol, R Reynaud, A Fabre
: Infant food diversification has undergone a rapid succession of good practice recommendations in France, but there has been no assessment of pediatrician practices on food diversification. OBJECTIVE: To assess the practices of pediatricians in relation to current recommendations of the French Society of Pediatrics on infant food diversification. METHODS: This was an observational study conducted from 1 November 2014 to 31 March 2015. The study population consisted of 97 pediatricians in the Var department and 84 pediatric residents assigned to the University of Aix-Marseille in France...
October 2016: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
Roxane Labrosse, François Graham, Anne Des Roches, Philippe Bégin
Food allergy is an important health issue that affects up to 8 % of the population. The management of allergic patients involves allergen avoidance and prompts the treatment of accidental reactions, as no curative treatment is available so far in routine practice. Oral immunotherapy (OIT) is a promising therapeutic alternative, but it is associated with frequent allergic reactions and cost-effectiveness issues. In hopes of reducing such reactions, a number of trials have used omalizumab, an anti-IgE monoclonal humanized antibody, as adjunctive therapy in OIT...
September 14, 2016: Archivum Immunologiae et Therapiae Experimentalis
Andrew J MacGinnitie, Rima Rachid, Hana Gragg, Sara V Little, Paul Lakin, Antonella Cianferoni, Jennifer Heimall, Melanie Makhija, Rachel Robison, R Sharon Chinthrajah, John Lee, Jennifer Lebovidge, Tina Dominguez, Courtney Rooney, Megan Ott Lewis, Jennifer Koss, Elizabeth Burke-Roberts, Kimberly Chin, Tanya Logvinenko, Jacqueline A Pongracic, Dale T Umetsu, Jonathan Spergel, Kari C Nadeau, Lynda C Schneider
BACKGROUND: Peanut oral immunotherapy is a promising approach to peanut allergy, but reactions are frequent, and some patients cannot be desensitized. The anti-IgE medication omalizumab (Xolair; Genentech, South San Francisco, Calif) might allow more rapid peanut updosing and decrease reactions. OBJECTIVE: We sought to evaluate whether omalizumab facilitated rapid peanut desensitization in highly allergic patients. METHODS: Thirty-seven subjects were randomized to omalizumab (n = 29) or placebo (n = 8)...
September 5, 2016: Journal of Allergy and Clinical Immunology
Sandra Bulat Lokas, Davor Plavec, Josipa Rikić Pišković, Jelena Živković, Boro Nogalo, Mirjana Turkalj
BACKGROUND: Our aim was to examine the performance of IMMULITE 2000 assay for specific IgE (sIgE) by comparing it with ImmunoCAP technology in light of a clinical background. METHODS: Measurements of sIgE were done in a selected patient group (N = 569; varied sample size for each allergen) and in a random sample group (N = 100; 8 allergens). sIgE results were correlated with skin-prick test results (selected patients) and medical history (nonselected patients). RESULTS: We have detected fair to excellent correlation and agreement between the results of both assays, despite their methodological differences, both in selected and nonselected patient group (ρc = 0...
September 8, 2016: Journal of Clinical Laboratory Analysis
Brian P Vickery
No abstract text is available yet for this article.
September 6, 2016: Expert Review of Clinical Immunology
Robin Korte, Jens Brockmeyer
Food allergies have become a global challenge to food safety in industrialized countries in recent years. With governmental monitoring and legislation moving towards the establishment of threshold allergen doses, there is a need for sensitive and quantitative analytical methods for the determination of allergenic food contaminants. Targeted proteomics employing liquid chromatography-mass spectrometry (LC-MS) has emerged as a promising technique that offers increased specificity and reproducibility compared to antibody and DNA-based technologies...
November 2016: Analytical and Bioanalytical Chemistry
So Yeon Lee, Kangmo Ahn, Jihyun Kim, Gwang Cheon Jang, Taek Ki Min, Hyeon Jong Yang, Bok Yang Pyun, Ji Won Kwon, Myung Hyun Sohn, Kyung Won Kim, Kyu Earn Kim, Jinho Yu, Soo Jong Hong, Jung Hyun Kwon, Sung Won Kim, Tae Won Song, Woo Kyung Kim, Hyung Young Kim, You Hoon Jeon, Yong Ju Lee, Hae Ran Lee, Hye Young Kim, Youngmin Ahn, Hye Yung Yum, Dong In Suh, Hyun Hee Kim, Jin Tack Kim, Jeong Hee Kim, Yong Mean Park, Sooyoung Lee
PURPOSE: Although anaphylaxis is recognized as an important, life-threatening condition, data are limited regarding its triggers in different age groups. We aimed to identify anaphylaxis triggers by age in Korean children. METHODS: We performed a retrospective review of medical records for children diagnosed with anaphylaxis between 2009 and 2013 in 23 secondary or tertiary hospitals in South Korea. RESULTS: A total of 991 cases (mean age=5...
November 2016: Allergy, Asthma & Immunology Research
Kyung Hee Park, Young Woong Son, Sang Chul Lee, Kyunguk Jeong, Da Woon Sim, Hye Jung Park, Sooyoung Lee, Jae Hyun Lee, Jung Won Park
PURPOSE: Clinical features of peanut allergy can range from localized to systemic reactions. Because peanut and birch pollen have cross-reactivity, peanut can lead to localized allergic reaction in Fagales pollen-sensitized oral allergy syndrome (OAS) patients without peanut sensitization per se. The purpose of this study was to discriminate true peanut food allergy from cross-reactive hypersensitivity in birch-sensitized peanut allergy. METHODS: Birch-sensitized (n=81) and peanut anaphylaxis patients (n=12) were enrolled...
November 2016: Allergy, Asthma & Immunology Research
Jeong-Ok Lee, Dongeun Sung, Su Hwa Park, Jinyoung Lee, Jihyun Kim, Dong-Hwa Shon, Kangmo Ahn, Youngshin Han
BACKGROUND: Many food experts have studied various treatments or processing techniques in order to develop hypoallergenic foods. In a previous study, acid treatment dramatically mitigated the allergenicity of peanut, especially Ara h 2. RESULTS: Gel electrophoresis showed that most protein bands of acid-treated peanut were not detected, but protein bands of egg white became weaker and broader by acid treatment. In immunoblotting using a rabbit antibody, the antigenicity against ovalbumin or ovomucoid in acid-treated egg white was decreased but the antigenicity against Ara h 1 or Ara h 2 in peanut treated with pH 2 acetic acid was completely undetected...
October 6, 2016: Journal of the Science of Food and Agriculture
Ewa Willak-Janc, Hanna Sikorska-Szaflik
No abstract text is available yet for this article.
August 8, 2016: Indian Pediatrics
Brooke I Polk, Deendayal Dinakarpandian, Maya Nanda, Charles Barnes, Chitra Dinakar
BACKGROUND: Coconut (Cocos nucifera), despite being a drupe, was added to the US Food and Drug Administration list of tree nuts in 2006, causing potential confusion regarding the prevalence of coconut allergy among tree nut allergic patients. OBJECTIVE: To determine whether sensitization to tree nuts is associated with increased odds of coconut sensitization. METHODS: A single-center retrospective analysis of serum specific IgE levels to coconut, tree nuts (almond, Brazil nut, cashew, chestnut, hazelnut, macadamia, pecan, pistachio, and walnut), and controls (milk and peanut) was performed using deidentified data from January 2000 to August 2012...
October 2016: Annals of Allergy, Asthma & Immunology
Muhammad Inam, Rubaba Hamid Shafique, Nabila Roohi, Muhammad Irfan, Shahid Abbas, Muhammad Ismail
In this study, we estimated the prevalence of food allergy in the adult allergic patients of Rawalpindi and Islamabad , Pakistan, based on self-report, skin prick test (SPT) and oral food challenge test (OFC). SPT was used for the estimation of sensitization to wheat, egg, milk, beef, chicken, mutton, fish, corn, lentils, rice, soya, peanut and banana. Among 689 patients, 39.19 % showed sensitivity to one or more foods, where, sensitization to wheat (156; 22.6 %) was highest, followed by egg (148; 21.48 %) and milk (138; 20...
2016: SpringerPlus
Kelly A Orgel, Shiteng Duan, Benjamin L Wright, Soheila J Maleki, John C Wolf, Brian P Vickery, A Wesley Burks, James C Paulson, Mike D Kulis, Matthew S Macauley
No abstract text is available yet for this article.
August 20, 2016: Journal of Allergy and Clinical Immunology
David A Hill, Robert W Grundmeier, Gita Ram, Jonathan M Spergel
BACKGROUND: The rates of childhood allergic conditions are changing, prompting the need for continued surveillance. Examination of healthcare provider-based diagnosis data is an important and lacking methodology needed to complement existing studies that rely on participant reporting. METHODS: Utilizing our care network of 1,050,061 urban and sub-urban children, we defined two retrospective cohorts: (1) a closed birth cohort of 29,662 children and (2) a cross-sectional cohort of 333,200 children...
2016: BMC Pediatrics
Hamid Reza Kianifar, Alireza Pourreza, Farahzad Jabbari Azad, Hadis Yousefzadeh, Fatemeh Masomi
BACKGROUND: Diagnosis of food allergy is difficult in children. Food allergies are diagnosed using several methods that include medical histories, clinical examinations, skin prick and serum-specific immunoglobulin E (IgE) tests, radio-allergosorbent test (RAST), food challenge, and supervised elimination diets. In this study we evaluated allergies to cow's milk, egg, peanut, and fish in children with suspected food allergies with skin prick tests and serum and feces RAST. METHODS: Forty-one children with clinical symptoms of food allergies were enrolled in the study...
April 2016: Reports of Biochemistry & Molecular Biology
Lara Utsch, Adrian Logiantara, Ronald van Ree, Leonie S van Rijt
BACKGROUND: Food allergy has been associated with an increased risk for the development of allergic asthma. Asthma is a risk factor for the development of an anaphylactic response to food allergens. An immunological interplay between sensitization to different allergens in different compartments of the body might be involved. OBJECTIVE: To evaluate the immunological interplay between intragastrical peanut (PE) sensitization and respiratory sensitization to house dust mite (HDM) allergens...
August 17, 2016: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
Kaori Mukai, Nicolas Gaudenzio, Sheena Gupta, Nora Vivanco, Sean C Bendall, Holden T Maecker, Rebecca S Chinthrajah, Mindy Tsai, Kari C Nadeau, Stephen J Galli
BACKGROUND: Basophil activation tests (BATs) have promise for research and for clinical monitoring of patients with allergies. However, BAT protocols vary in blood anticoagulant used and temperature and time of storage before testing, complicating comparisons of results from various studies. OBJECTIVE: We attempted to establish a BAT protocol that would permit analysis of blood within 24 hours of obtaining the sample. METHODS: Blood from 46 healthy donors and 120 patients with peanut allergy was collected into EDTA or heparin tubes, and samples were stored at 4°C or room temperature for 4 or 24 hours before performing BATs...
July 15, 2016: Journal of Allergy and Clinical Immunology
Brian P Vickery, Jelena P Berglund, Caitlin M Burk, Jason P Fine, Edwin H Kim, Jung In Kim, Corinne A Keet, Michael Kulis, Kelly G Orgel, Rishu Guo, Pamela H Steele, Yamini V Virkud, Ping Ye, Benjamin L Wright, Robert A Wood, A Wesley Burks
BACKGROUND: Oral immunotherapy (OIT) is an effective experimental food allergy treatment that is limited by treatment withdrawal and the frequent reversibility of desensitization if interrupted. Newly diagnosed preschool children may have clinical and immunological characteristics more amenable to treatment. OBJECTIVE: We sought to test the safety, effectiveness, and feasibility of early OIT (E-OIT) in the treatment of peanut allergy. METHODS: We enrolled 40 children aged 9 to 36 months with suspected or known peanut allergy...
August 4, 2016: Journal of Allergy and Clinical Immunology
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