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https://www.readbyqxmd.com/read/28521317/mechanisms-of-tolerance-induction
#1
Anna Nowak-Węgrzyn, Pantipa Chatchatee
Food allergy results from failure in oral tolerance that usually occurs in infancy or early childhood. Exposure to peanut and hen's egg via the inflamed and disrupted epithelial barrier in children with severe atopic dermatitis is a risk factor for the development of allergy to these foods and supports the hypothesis that epicutaneous exposure in the absence of oral feeding is an important pathway of allergic IgE sensitization in infants. In recent years, the collective evidence has pointed toward the protective effect of an early feeding with peanut and egg in children with eczema, taking advantage of the pathways underlying oral tolerance to counteract epicutaneous exposure...
2017: Annals of Nutrition & Metabolism
https://www.readbyqxmd.com/read/28521316/introduction-of-complementary-foods-to-infants
#2
Christina West
While earlier food allergy prevention strategies implemented avoidance of allergenic foods in infancy, the current paradigm is shifting from avoidance to controlled exposure. This review focuses on the outcome of recent randomized controlled trials, which have examined the early introduction of allergenic foods for allergy prevention, and discusses the implementation of results in clinical practice. In infants at high risk of allergic disease, there is now direct evidence that regular early peanut consumption will reduce the prevalence of peanut allergy, compared to avoidance...
2017: Annals of Nutrition & Metabolism
https://www.readbyqxmd.com/read/28516451/evidence-that-eating-baked-egg-or-milk-influences-egg-or-milk-allergy-resolution-a-systematic-review
#3
REVIEW
R Lambert, K E C Grimshaw, B Ellis, J Jaitly, G Roberts
BACKGROUND: It has been proposed that the frequent ingestion of baked hen's egg or cow's milk accelerates the resolution of hen's egg or cow's milk allergy. This practice is being introduced into clinical practice. OBJECTIVE: To systematically review the evidence to determine whether the introduction of baked hen's egg or cow's milk into the diet of children with hen's egg or cow's milk allergies respectively leads to a larger proportion of children outgrowing these allergies than expected...
May 17, 2017: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28514997/the-prevalence-of-food-allergy-and-other-allergic-diseases-in-early-childhood-in-a-population-based-study-healthnuts-age-4-year-follow-up
#4
Rachel L Peters, Jennifer J Koplin, Lyle C Gurrin, Shyamali C Dharmage, Melissa Wake, Anne-Louise Ponsonby, Mimi L K Tang, Adrian J Lowe, Melanie Matheson, Terence Dwyer, Katrina J Allen
BACKGROUND: The HealthNuts study previously reported interim prevalence data showing the highest prevalence of challenge-confirmed food allergy in infants internationally. However, population-derived prevalence data on challenge-confirmed food allergy and other allergic diseases in preschool-aged children remain sparse. OBJECTIVE: This study aimed to report the updated prevalence of food allergy at age 1 year from the whole cohort, and to report the prevalence of food allergy, asthma, eczema, and allergic rhinitis at age 4 years...
April 25, 2017: Journal of Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28503545/relationship-of-allergy-with-asthma-there-are-more-than-the-allergy-eggs-in-the-asthma-basket
#5
REVIEW
George V Guibas, Alexander G Mathioudakis, Marina Tsoumani, Sophia Tsabouri
Asthma and allergy share a similar and very close course, especially through childhood. Considerable research effort has been put in untangling these associations; however, it is now becoming obvious that this is an exceedingly difficult task. In fact, each research breakthrough further perplexes this picture, as we are steadily moving toward the era of personalized medicine and we begin to appreciate that what we thought to be a single disease, asthma, is in fact an accumulation of distinct entities. In the context of this "syndrome," which is characterized by several, as of yet poorly defined endotypes and phenotypes, the question of the link of "asthma" with allergy probably becomes non-relevant...
2017: Frontiers in Pediatrics
https://www.readbyqxmd.com/read/28470372/food-allergy-in-south-africa
#6
REVIEW
Claudia L Gray
PURPOSE OF THE REVIEW: Whilst food allergy seems to have increased significantly in many developed countries in the past few decades, quality data on the burden of food allergy in many developing countries is scanty. Until recently, South Africa had a dearth of robustly designed food allergy studies. This article summarizes some of the recent research and observations regarding food allergy from the South African setting. RECENT FINDINGS: South Africa has recently seen two important food allergy prevalence studies in selected and unselected populations...
June 2017: Current Allergy and Asthma Reports
https://www.readbyqxmd.com/read/28467846/sensitizing-and-eliciting-capacity-of-egg-white-proteins-in-balb-c-mice-as-affected-by-processing
#7
Alba Pablos-Tanarro, Daniel Lozano-Ojalvo, Mónica Martínez-Blanco, Rosina López-Fandiño, Elena Molina
This study assesses to what extent technological processes that lead to different degrees of denaturation of egg white proteins affect their allergenicity. We focused on heat (80 °C, 10 min) and high-pressure (400 MPa and 37 °C, 10 min) treatments and used a BALB/c mouse model of food allergy. Oral sensitization to egg white using cholera toxin as adjuvant induced the production of IgE and IgG1 isotypes and led to severe clinical signs following challenge with the allergen. Extensive protein denaturation caused by heat treatment increased its ability to induce Th1 responses and reduced both its sensitizing and eliciting capacity...
May 23, 2017: Journal of Agricultural and Food Chemistry
https://www.readbyqxmd.com/read/28461822/ige-mediated-food-allergies-in-children-prevalence-triggers-and-management
#8
REVIEW
Sooyoung Lee
Food allergy (FA) is a serious health problem, and severe FA such as food-induced anaphylaxis can often be life threatening. The incidence of FA has been increasing especially in children. They usually develop early in life and affect up to 10% of children. The 2 most common food allergens worldwide are milk and eggs, while the third one varies depending on the countries: peanuts in the United States and Switzerland, wheat in Germany and Japan, tree nuts in Spain, sesame in Israel, and walnuts in Korea. These common food allergens are different and difficult to identify because of differing study methodologies, population, geography, age, and dietary exposure patterns...
April 2017: Korean Journal of Pediatrics
https://www.readbyqxmd.com/read/28435301/egg-introduction-differential-allergic-responses
#9
Amrita Dosanjh
The use of egg protein preparations in clinical trials to reduce the incidence of egg allergy among infants includes a number of preparations of egg. These include whole egg, egg white protein, and egg yolk preparations. The study of the differential immune responses to these allergenic proteins in comparison is suggested as a future research area of investigation.
2017: Journal of Asthma and Allergy
https://www.readbyqxmd.com/read/28425254/wheezing-asthma-and-atopy-in-premature-infants-at-2-years-of-age
#10
Sevim Ünal, Ayşenur Kaya, Leyla Bilgin, Emine Misirlioğlu, Can Naci Kocabaş
BACKGROUND/AIM: We aimed to evaluate wheezing, bronchial asthma (BA), and atopy in premature infants at 2 years of age via a cross-sectional study. MATERIALS AND METHODS: Premature infants at <37 weeks of gestational age (GA) were assessed for atopy by skin-prick test and serum immunoglobulin E level at 2 years of age. The family's and infant's histories of allergy, BA, atopy, and wheezing were obtained by questionnaire and from hospital records. RESULTS: There were 98 infants, with mean birth weight (BW) 1517...
April 18, 2017: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/28421513/primary-prevention-of-food-allergy
#11
REVIEW
Matthew J Greenhawt, David M Fleischer
Food allergy is estimated to affect approximately 8% of children in the USA. This is a disease without any known treatment or cure and, for some, a disease that can be quite severe, even life-threatening. While recent advances in potential treatment have made remarkable strides, with two food-targeted immunotherapy products now in phase III trials, perhaps the biggest gains in the field have come in the advent of potential preventative strategies to avoid the development of food allergy in high-risk individuals...
April 2017: Current Allergy and Asthma Reports
https://www.readbyqxmd.com/read/28393916/production-and-glyco-engineering-of-immunomodulatory-helminth-glycoproteins-in-plants
#12
Ruud H P Wilbers, Lotte B Westerhof, Kim van Noort, Katja Obieglo, Nicole N Driessen, Bart Everts, Sonja I Gringhuis, Gabriele Schramm, Aska Goverse, Geert Smant, Jaap Bakker, Hermelijn H Smits, Maria Yazdanbakhsh, Arjen Schots, Cornelis H Hokke
Helminth parasites control host-immune responses by secreting immunomodulatory glycoproteins. Clinical trials and mouse model studies have demonstrated the potential of helminth-derived glycoproteins for the treatment of immune-related diseases, like allergies and autoimmune diseases. Studies are however hampered by the limited availability of native parasite-derived proteins. Moreover, recombinant protein production systems have thus far been unable to reconstitute helminth-like glycosylation essential for the functionality of some helminth glycoproteins...
April 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28364406/component-resolved-diagnostics-in-thai-children-with-cow-s-milk-and-egg-allergy
#13
Wipa Jessadapakorn, Pasuree Sangsupawanich, Natthakul Wootipoom, Oranart Suddeaugrai, Araya Yuenyongviwat
BACKGROUND AND OBJECTIVE: Component-resolved diagnostics (CRD) have garnered a lot of attention in recent years in the diagnosis of food allergies. We aimed to investigate sensitization against cow's milk and egg white components, and to study the clinical usefulness of serum food-specific immunoglobulin E (sIgE) to cow's milk and egg white components in Thai children with cow's milk and egg allergies. METHOD: Children with IgE-mediated cow's milk and/or egg allergy were enrolled...
April 1, 2017: Asian Pacific Journal of Allergy and Immunology
https://www.readbyqxmd.com/read/28351786/association-of-clinical-reactivity-with-sensitization-to-allergen-components-in-multifood-allergic-children
#14
Sandra Andorf, Magnus P Borres, Whitney Block, Dana Tupa, Jennifer B Bollyky, Vanitha Sampath, Arnon Elizur, Jonas Lidholm, Joseph E Jones, Stephen J Galli, Rebecca S Chinthrajah, Kari C Nadeau
BACKGROUND: Thirty percent of children with food allergies have multiple simultaneous allergies; however, the features of these multiple allergies are not well characterized serologically or clinically. OBJECTIVE: We comprehensively evaluated 60 multifood-allergic patients by measuring serum IgE to key allergen components, evaluating clinical histories and medication use, performing skin tests, and conducting double-blind, placebo-controlled food challenges (DBPCFCs)...
March 25, 2017: Journal of Allergy and Clinical Immunology in Practice
https://www.readbyqxmd.com/read/28346705/performance-of-a-polymer-coated-silicon-microarray-for-simultaneous-detection-of-food-allergen-specific-ige-and-igg4
#15
Steven Sievers, Marina Cretich, Paola Gagni, Birgit Ahrens, Galina Grishina, Hugh Sampson, Bodo Niggemann, Marcella Chiari, Kirsten Beyer
BACKGROUND: Microarray-based component-resolved diagnostics (CRD) has become an accepted tool to detect allergen specific IgE-sensitization towards hundreds of allergens in parallel from one drop of serum. Nevertheless specificity and sensitivity as well as a simultaneous detection of allergen specific IgG4, as a potential parameter for tolerance development, remain to be optimized. OBJECTIVE: We applied the recently introduced silicon chip coated with a functional polymer named copoly(DMA-NAS-MAPS) to the simultaneous detection of food allergen specific IgE and IgG4, and compared it with ImmunoCAP and ImmunoCAP ISAC...
March 27, 2017: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/28346598/association-between-family-characteristics-and-the-effect-of-timing-of-regular-egg-introduction-in-infant-egg-allergy
#16
Debra J Palmer, Thomas R Sullivan, Michael S Gold, Susan L Prescott, Maria Makrides
No abstract text is available yet for this article.
May 1, 2017: JAMA Pediatrics
https://www.readbyqxmd.com/read/28330689/evaluation-of-methohexital-as-an-alternative-to-propofol-in-a-high-volume-outpatient-pediatric-sedation-service
#17
Nicholas E Jones, Michael S Kelleman, Harold K Simon, Jana A Stockwell, Courtney McCracken, Michael D Mallory, Pradip P Kamat
BACKGROUND: Propofol is a preferred agent for many pediatric sedation providers because of its rapid onset and short duration of action. It allows for quick turn around times and enhanced throughput. Occasionally, intravenous (IV) methohexital (MHX), an ultra-short acting barbiturate is utilized instead of propofol. OBJECTIVE: Describe the experience with MHX in a primarily propofol driven outpatient sedation program and to see if it serves as an acceptable alternative when propofol is not the preferred pharmacologic option...
March 8, 2017: American Journal of Emergency Medicine
https://www.readbyqxmd.com/read/28318190/successful-administration-of-measles-rubella-mumps-vaccine-by-graded-challenge-in-a-case-with-anaphylaxis-after-prior-vaccination
#18
Tuba Tuncel, Ozlem Sancakli, Ece Ozdogru
Egg allergy is one of the most common food allergies during childhood along with cow's milk allergy. The measles-mumpsrubella (MMR) vaccine is included in the pediatric immunization schedule and contains egg protein. The currently accepted opinion is that the MMR vaccination should be done in a single dose under medical observation in patients with egg allergy. Although it is reported that the MMR vaccine is safe for that patients, there are some patients who developed anaphylaxis. Generally, the development of anaphylaxis after the previous vaccination is reported as a contraindication...
April 1, 2017: Archivos Argentinos de Pediatría
https://www.readbyqxmd.com/read/28315886/update-on-timing-and-source-of-allergenic-foods
#19
Debra J Palmer
As the prevalence of food allergies in many communities continues to rise, the question of when in infancy to introduce any solid foods, or specific 'more allergenic' foods, as a food allergy prevention strategy has been debated. Observational studies have found that introducing any solid foods prior to 4 months of age was associated with an increased risk of allergic disease. Hence, the current allergy prevention consensus recommendation is that the introduction of any solid foods should commence after 4 months of age...
2017: Nestlé Nutrition Institute Workshop Series
https://www.readbyqxmd.com/read/28315219/assessment-of-ige-reactivity-of-%C3%AE-casein-by-western-blotting-after-digestion-with-simulated-gastric-fluid
#20
Sara Benedé, Rosina López-Fandiño, Elena Molina
Cow's milk allergy is defined as an immunologically mediated adverse reaction to cow's milk proteins and it is usually, along with hen's egg allergy, the first food allergy identified in childhood.One of the main aspects to consider when evaluating the allergenic potential of food proteins is the effect of gastric digestion. It is known that allergens are usually able to survive the harsh acidic environment of the stomach, tolerate the presence of surfactants, and resist digestion by pepsin. They might also be digested into high molecular weight peptide fragments, which retain the same, or sometimes increased, IgE-binding...
2017: Methods in Molecular Biology
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