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https://www.readbyqxmd.com/read/27909880/il-9-producing-cells-in-the-development-of-ige-mediated-food-allergy
#1
REVIEW
Dana Shik, Sunil Tomar, Jee-Boong Lee, Chun-Yu Chen, Andrew Smith, Yui-Hsi Wang
Food allergy is a harmful immune reaction driven by uncontrolled type 2 immune responses. Considerable evidence demonstrates the key roles of mast cells, IgE, and TH2 cytokines in mediating food allergy. However, this evidence provides limited insight into why only some, rather than all, food allergic individuals are prone to develop life-threatening anaphylaxis. Clinical observations suggest that patients sensitized to food through the skin early in life may later develop severe food allergies. Aberrant epidermal thymic stromal lymphopoietin and interleukin (IL) 33 production and genetic predisposition can initiate an allergic immune response mediated by dendritic cells and CD4(+)TH2 cells in inflamed skin...
December 1, 2016: Seminars in Immunopathology
https://www.readbyqxmd.com/read/27906504/combination-of-two-epitope-identification-techniques-enables-the-rational-design-of-soy-allergen-gly-m-4-mutants
#2
Heide Havenith, Karolin Kern, Paul Rautenberger, Holger Spiegel, Michael Szardenings, Elke Ueberham, Jörg Lehmann, Matthias Buntru, Simon Vogel, Regina Treudler, Rainer Fischer, Stefan Schillberg
BACKGROUND: Detailed IgE-binding epitope analysis is a key requirement for the understanding and development of diagnostic and therapeutic agents to address food allergies. METHODS: We combined an IgE-specific linear peptide microarray with random phage peptide display for the high-resolution mapping of IgE-binding epitopes of the major soybean allergen Gly m 4, which is a homologue to the birch pollen allergen Bet v1. RESULTS: Three epitopes were identified and mapped to a resolution of four key amino acids, allowing the rational design and the production of three Gly m 4 mutants with the aim to abolish or reduce the binding of epitope-specific IgE...
December 1, 2016: Biotechnology Journal
https://www.readbyqxmd.com/read/27905314/dutch-guideline-on-food-allergy
#3
M S van Maaren, A E J Dubois
The diagnosis of food allergy is established in cases where an immediate allergic reaction has occurred in the last year to a clearly identifiable allergenic food combined with sensitisation to this allergenic food. In all other cases, a food challenge test is required to establish or reject the diagnosis of food allergy. Although the double-blind placebo-controlled food challenge (DBPCFC) test is considered the gold standard, false-positive and false-negative outcomes occur. The incidence of false-positive outcomes is unknown because the results of DBPCFC tests cannot be further confirmed by other tests...
November 2016: Netherlands Journal of Medicine
https://www.readbyqxmd.com/read/27904183/food-allergy-in-atopic-dermatitis
#4
Sandipan Dhar, Sahana M Srinivas
Food allergy in atopic dermatitis (AD) is debatable from decades. Role of diet in the cause and treatment of AD is controversial and is not well-defined. Allergists and pediatricians are convinced about the food allergy in AD whereas many dermatologists are contrary for this. However, there are studies in the Indian and western literature supporting the evidence that elimination diet may improve the severe type of AD. There is increasing awareness and lot of misconception among caregivers about food allergy and hence careful understanding about this concept is necessary to counsel parents...
November 2016: Indian Journal of Dermatology
https://www.readbyqxmd.com/read/27896827/leaping-through-the-looking-glass-secondary-analysis-of-the-effect-of-skin-test-size-and-age-of-introduction-on-peanut-tolerance-after-early-peanut-introduction
#5
Matthew Greenhawt, David Fleischer, Edmond S Chan, Carina Venter, David Stukus, Ruchi Gupta, Jonathan Spergel
BACKGROUND: In the Learning Early About Peanut Allergy (LEAP) study, early peanut introduction in high-risk 4-11 month olds was associated with a significantly decreased risk of developing peanut allergy. However, the influences of key baseline high-risk factors on peanut tolerance are poorly understood. METHODS: Secondary analysis was conducted on the publically available LEAP dataset, exploring relationships between peanut tolerance, baseline peanut/egg sensitization, eczema severity/duration, age of introduction, gender, and race...
November 29, 2016: Allergy
https://www.readbyqxmd.com/read/27893940/community-healthcare-professionals-overestimate-the-risk-of-fatal-anaphylaxis-for-food-allergic-children
#6
H J Hanna, J Emmanuel, S Naim, T Umasunthar, R J Boyle
BACKGROUND: Fatal food anaphylaxis is rare, but a major concern for people with food allergy and their carers. We evaluated whether community healthcare professionals accurately estimate risk of fatal anaphylaxis for food allergic children, and whether accurate risk estimation is related to competence in recognizing and managing anaphylaxis. METHODS: We enrolled 90 community healthcare professionals in a cross-sectional survey - 30 primary care nurses, 30 school first aiders, 30 community pharmacists...
December 2016: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/27888035/racial-differences-in-food-allergy-phenotype-and-health-care-utilization-among-us-children
#7
Mahboobeh Mahdavinia, Susan R Fox, Bridget M Smith, Christine James, Erica L Palmisano, Aisha Mohamed, Zeeshan Zahid, Amal H Assa'ad, Mary C Tobin, Ruchi S Gupta
BACKGROUND: Food allergy (FA) is a prevalent condition in the United States, but little is known about its phenotypes in racial minority groups. OBJECTIVE: The objective of this study was to characterize disease phenotypes and disparities in health care utilization among African American (AA), Hispanic, and white children with FA. METHODS: We conducted a large, 2-center, retrospective cohort study of children aged 0-17 years with FA seen in allergy/immunology clinics at 2 urban tertiary care centers in the United States...
November 22, 2016: Journal of Allergy and Clinical Immunology in Practice
https://www.readbyqxmd.com/read/27887897/nomenclature-and-diagnosis-of-gluten-related-disorders-a-position-statement-by-the-italian-association-of-hospital-gastroenterologists-and-endoscopists-aigo
#8
REVIEW
Luca Elli, Danilo Villalta, Leda Roncoroni, Donatella Barisani, Stefano Ferrero, Nicoletta Pellegrini, Maria Teresa Bardella, Flavio Valiante, Carolina Tomba, Antonio Carroccio, Massimo Bellini, Marco Soncini, Renato Cannizzaro, Gioacchino Leandro
BACKGROUND: "Gluten-related disorders" is a term that encompasses different diseases induced by the ingestion of gluten-containing food. Because of their incidence the scientific community has been intensively studying them. AIM: To support gastroenterologists with a correct nomenclature and diagnostic approach to gluten-related disorders in adulthood. METHODS: The Italian Association of Hospital Gastroenterologists and Endoscopists (AIGO) commissioned a panel of experts to prepare a position statement clarifying the nomenclature and diagnosis of gluten-related disorders, focusing on those of gastroenterological interest...
November 4, 2016: Digestive and Liver Disease
https://www.readbyqxmd.com/read/27886908/cutaneous-manifestation-of-food-allergy
#9
REVIEW
Jonathan S Tam
Hypersensitivity reactions to foods can have diverse and highly variable manifestations. Cutaneous reactions, such as acute urticaria and angioedema, are among the most common manifestations of food allergy. However, cutaneous manifestations of food allergy encompass more than just IgE-mediated processes and include atopic dermatitis, contact dermatitis, and even dermatitis herpetiformis. These cutaneous manifestations provide an opportunity to better understand the diversity of adverse immunologic responses to food and the interconnected pathways that produce them...
February 2017: Immunology and Allergy Clinics of North America
https://www.readbyqxmd.com/read/27886644/oral-administration-with-diosgenin-enhances-the-induction-of-intestinal-t-helper-1-like-regulatory-t-cells-in-a-murine-model-of-food-allergy
#10
Chung-Hsiung Huang, Chia-Chi Wang, Yu-Jin Lin, Masatoshi Hori, Tong-Rong Jan
Although the development of T helper (Th)1-like regulatory T (Treg) cells under Th1 inflammatory conditions has been reported, the role of Th1-like Treg cells in Th2 allergic responses remains mostly unclear. We previously demonstrated that diosgenin, the major sapogenin contained in the Chinese yam, attenuated food allergy and augmented Th1 and Treg immune responses. In this study, we hypothesized that diosgenin may enhance the induction of Th1-like Treg cells in the gut of mice with food allergy. Ovalbumin (OVA)-sensitized BALB/c mice were gavaged daily with diosgenin and received repeatedly intragastric ovalbumin challenges to induce intestinal allergic responses...
November 22, 2016: International Immunopharmacology
https://www.readbyqxmd.com/read/27886390/green-yellow-and-red-risk-perception-in-everyday-life-a-communication-tool
#11
A Stensgaard, A DunnGalvin, D Nielsen, M Munch, C Bindslev-Jensen
BACKGROUND: Adolescents have the highest risk for food allergy-related fatalities. Our main aim was to investigate the level of risk in everyday social situations as perceived by adolescents/young adults with peanut allergy, their families and their friends. METHODS: The web-based 'Colours Of Risks' (COR) questionnaire was completed by 70 patients (aged 12-23 years), 103 mothers and fathers, 31 siblings (aged 12-26 years), and 42 friends (aged 12-24 years). COR deals with six main contexts (home, school/university, work, visiting/social activities, special occasions/parties, and vacations), each with 1-12 items...
November 25, 2016: Allergy
https://www.readbyqxmd.com/read/27886387/coping-strategies-alexithymia-and-anxiety-in-young-patients-with-food-allergy
#12
Laura Polloni, Audrey DunnGalvin, Emilia Ferruzza, Roberta Bonaguro, Francesca Lazzarotto, Alice Toniolo, Nicolò Celegato, Antonella Muraro
BACKGROUND: Food allergy is major public health concern affecting nearly 15 million Americans and 80 million Europeans. Risk of anaphylaxis and implications for social activities affect patients' quality of life and psychological wellbeing. We previously found that young patients reported higher levels of alexithymia (difficulty in recognizing and expressing emotions) compared to healthy peers, and may influence affect, management style and clinical outcomes. This study aimed to explore links between coping strategies, alexithymia and anxiety among food-allergic adolescents and young adults...
November 25, 2016: Allergy
https://www.readbyqxmd.com/read/27885206/long-term-follow-up-of-a-case-of-apple-allergy-with-systemic-symptoms-through-oral-food-challenges
#13
Tomoyuki Asaumi, Sakura Sato, Noriyuki Yanagida, Mikita Yamamoto, Motohiro Ebisawa
To our knowledge, there are no previous reports of apple allergy with systemic symptoms for which repeated oral food challenges were performed over a long follow-up. The patient was an 8-year-old boy with hay fever. He visited our hospital because of nasal drop, itchy eyes, and dyspnea after lunch every two months for 2 years. Apple allergy was suspected through his medical interview and specific immunoglobulin (Ig) E levels, and he consequently underwent an oral food challenge test. Ninety minutes after ingestion of one whole apple, he experienced coughing, nasal drop, eyelid edema, and conjunctival injection...
2016: Arerugī, [Allergy]
https://www.readbyqxmd.com/read/27883239/individually-dosed-omalizumab-an-effective-treatment-for-severe-peanut-allergy
#14
J Brandström, M Vetander, G Lilja, S G O Johansson, A-C Sundqvist, F Kalm, C Nilsson, A Nopp
BACKGROUND: Treatment with omalizumab has shown a positive effect on food allergies, but no dosages are established. Basophil allergen threshold sensitivity (CD-sens) can be used to objectively measure omalizumab treatment efficacy and correlates with the outcome of Double Blind Placebo Controlled Food Challenge to peanut. OBJECTIVE: To evaluate if individualized omalizumab treatment monitored by CD-sens could be an effective intervention for suppression of allergic reactions to peanut...
November 24, 2016: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/27883236/long-term-reduction-in-food-allergy-susceptibility-in-mice-by-combining-breastfeeding-induced-tolerance-and-tgf-%C3%AE-enriched-formula-after-weaning
#15
Akila Rekima, Patricia Macchiaverni, Mathilde Turfkruyer, Sebastien Holvoet, Lénaïck Dupuis, Nour Baiz, Isabella Annesi-Maesano, Annick Mercenier, Sophie Nutten, Valérie Verhasselt
BACKGROUND: Oral tolerance induction in early life is a promising approach for food allergy prevention. Its success requires the identification of factors necessary for its persistence. OBJECTIVES: We aimed to assess in mice duration of allergy prevention by breastfeeding-induced oral tolerance and whether oral TGF-β supplementation after weaning would prolong it. METHODS: We quantified ovalbumin (OVA) and OVA specific immunoglobulins levels by ELISA in milk from the EDEN birth cohort...
November 24, 2016: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
https://www.readbyqxmd.com/read/27880051/multimorbidities-of-asthma-allergies-and-airway-illnesses-in-childhood-chance-or-not-chance
#16
Wei Liu, Chen Huang, Xueying Wang, Jiao Cai, Yu Hu, Zhijun Zou, Louise B Weschler, Li Shen, Jan Sundell
OBJECTIVES: We investigated patterns of multimorbidities among asthma, allergies, and respiratory illnesses in preschool children. We examined lifetime multimorbidities of asthma, allergic rhinitis, eczema, food allergy, pneumonia, and ear infections; and current (in the last year before the survey) multimorbidities of wheeze, dry cough, rhinitis, eczema, and common cold during childhood. We further analyzed whether prevalences of these multimorbidities were due to chance. METHODS: A cross-sectional study was conducted in 72 kindergartens of Shanghai, China...
November 23, 2016: Journal of Asthma: Official Journal of the Association for the Care of Asthma
https://www.readbyqxmd.com/read/27879501/introducing-allergenic-food-into-infants-diets-systematic-review
#17
Katelin Larson, Jessica McLaughlin, Mallory Stonehouse, Brittany Young, Kristin Haglund
PURPOSE: The purpose of this evidence-based review was to explore the association between timing of introduction of potentially allergenic foods to infants and development of food allergies. METHODS: CINAHL, Medline, PubMed, Science Direct, and Web of Science were searched using the terms solid food, complementary food, or infant feeding combined with allergy or hypersensitivity for articles published in English in 2000 or later. Inclusion criteria were 1) primary research articles with 2) a focus on association between introduction of complementary foods including potentially allergenic foods into diets of infants less than 12 months of age and development of food allergies...
November 22, 2016: MCN. the American Journal of Maternal Child Nursing
https://www.readbyqxmd.com/read/27876251/-food-protein-induced-enterocolitis-syndrome-a-case-report-of-diarrhea-with-hypovolemic-shock-and-methemoglobinemia
#18
L Genere, N Pecciarini, N Peretti, F Villard, A Lachaux
We report on the case of a young infant with chronic diarrhea that worsened and turned into hypovolemic shock with methemoglobinemia. We underline and discuss the main features of food protein-induced enterocolitis syndrome (FPIES). FPIES is a non-IgE-mediated food allergy involving tumor necrosis factor-alpha (TNF-α). Many triggering foods exist but cow's milk, as in the case reported herein, is one of the most frequent. It can start early or be delayed and start around the average age of 5 months. Symptoms are nonspecific with diarrhea and vomiting, but in the presence of methemoglobinemia, the diagnosis must be seriously considered...
November 18, 2016: Archives de Pédiatrie: Organe Officiel de la Sociéte Française de Pédiatrie
https://www.readbyqxmd.com/read/27873733/food-allergy-to-the-carbohydrate-galactose-alpha-1-3-galactose-alpha-gal-four-case-reports-and-a-review
#19
Andreas J Bircher, Kathrin Scherer Hofmeier, Susanne Link, Ingmar Heijnen
Until recently, food allergies to mammalian meats have been considered to be very rare. The observation that patients not previously exposed to the monoclonal chimeric antibody cetuximab suffered from severe anaphylaxis upon first exposure, led to the identification of galactose-alpha-1,3-galactose as a new relevant carbohydrate allergen. These patients later often suffered from anaphylactic reactions to red meat. Epidemiological data indicated that bites by the tick Amblyomma americanum in the USA, later also by Ixodes species in other continents, resulted in sensitisation to alpha-gal...
November 21, 2016: European Journal of Dermatology: EJD
https://www.readbyqxmd.com/read/27873335/lip-b-1-is-a-novel-allergenic-protein-isolated-from-the-booklouse-liposcelis-bostrychophila
#20
O Ishibashi, K Sakuragi, Y Fukutomi, Y Kawakami, Y Kamata, M Sakurai, S Nakayama, H Uchiyama, H Kobayashi, H Kojima, T Inui
BACKGROUND: Booklice, belonging to the order Psocoptera, are small household insect pests that are distributed worldwide. Liposcelis bostrychophila (L. bostrychophila), a common home-inhabiting species of booklouse, infests old books, sheets of paper and stored food. Recent entomological and serological studies demonstrated that L. bostrychophila accounted for the majority of detectable insects in house dust and could be a potent inducer of respiratory allergy. Our recent proteomic analysis identified a potent allergenic protein from L...
November 22, 2016: Allergy
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