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Soy allergy

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
Alessandro Fiocchi, Lamia Dahda, Christophe Dupont, Cristina Campoy, Vincenzo Fierro, Antonio Nieto
BACKGROUND: In 2010, the diagnosis and treatment of IgE-mediated CMA were systematized in a GRADE guideline. OBJECTIVES & METHODS: After 6 years, the state of the knowledge in diagnosis and treatment of CMA has largely evolved. We summarize here the main advances, and exemplify indicating some specific points: studies aimed at better knowledge of the effects of breastfeeding and the production of new special formulae intended for the treatment of CMA. The literature (PubMed/MEDLINE) was searched using the following algorithms: (1) [milk allergy] AND diagnosis; (2) [milk allergy] AND [formul*] OR [breast*], setting the search engine [6-years] time and [human] limits...
2016: World Allergy Organization Journal
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
R Treudler, A Franke, A Schmiedeknecht, B K Ballmer-Weber, M Worm, T Werfel, U Jappe, T Biedermann, J Schmitt, R Brehler, A Kleinheinz, J Kleine-Tebbe, H Brüning, F Ruëff, J Ring, J Saloga, K Schäkel, T Holzhauser, St Vieths, J C Simon
BACKGROUND: Multicentre trials investigating food allergies by double blind placebo controlled food challenges (DBPCFC) need standardized procedures, challenge meals and evaluation criteria. We aimed at developing a standardized approach for identifying patients with birch related soy allergy by means of DBPCFC to soy, including determination of threshold levels, in a multicentre setting. METHODS: Microbiologically stable soy challenge meals were composed of protein isolate with consistent Gly m 4 levels...
2016: Clinical and Translational Allergy
Jennifer Lucarelli, Demetra Pappas, Leah Welchons, Marilyn Augustyn
Kendra is a 4-year-old girl with autism spectrum disorder (ASD) who presents for follow-up of feeding problems to her pediatric clinician. She is an only child in a family where both parents are scientists. Feeding concerns date to infancy, when she was diagnosed with Gastroesophageal Reflux Disease (GERD) associated with persistent bottle refusal and the acceptance of few pureed foods. At 13 months, milk and peanut allergies were diagnosed. Following a feeding clinic evaluation at 24 months, she was prescribed a soy milk supplement and an H2 blocker...
November 4, 2016: Journal of Developmental and Behavioral Pediatrics: JDBP
Motoharu Uchida, Hirotaka Kurushima, Kenji Ishihara, Yuko Murata, Ken Touhata, Noriko Ishida, Kentaro Niwa, Toshiyoshi Araki
High-salt content seaweed sauces were prepared for the first time using nori (Pyropia yezoensis) by fermentation and characterized. Components and taste of the two nori sauces (NSs) prepared separately were compared with those of soy and fish sauces. The NSs were rich in total nitrogen compounds (1.5 g N/100 ml on average) and potassium (880 mg/100 g), and had a unique free amino acid composition (e.g., taurine 617 mg/100 g), explaining their unique taste as evaluated by a taste sensing system. As for their food function, inhibitory activity of angiotensin-converting enzyme was observed...
October 24, 2016: Journal of Bioscience and Bioengineering
Thomas Holzhauser, Annegret Franke, Regina Treudler, Anett Schmiedeknecht, Stefanie Randow, Wolf-Meinhard Becker, Jonas Lidholm, Stefan Vieths, Jan-Christoph Simon
SCOPE: The BASALIT clinical trial (EudraCT 2009-011737-27) investigated efficacy of birch allergen immunotherapy on lowest observed adverse effect levels (LOAEL) after soy food challenge in patients with birch-associated and Gly m 4 allergen-mediated soy allergy. Thus, consistently stable Gly m 4 levels were required in standardised challenge meals. METHODS AND RESULTS: Soy meal included soy protein isolate (SPI, 88% total protein). A Gly m 4-specific ELISA was developed and validated...
October 17, 2016: Molecular Nutrition & Food Research
Willem S Lexmond, Jeremy A Goettel, Jonathan J Lyons, Justin Jacobse, Marion M Deken, Monica G Lawrence, Thomas H DiMaggio, Daniel Kotlarz, Elizabeth Garabedian, Paul Sackstein, Celeste C Nelson, Nina Jones, Kelly D Stone, Fabio Candotti, Edmond H H M Rings, Adrian J Thrasher, Joshua D Milner, Scott B Snapper, Edda Fiebiger
In addition to the infectious consequences of immunodeficiency, patients with Wiskott-Aldrich syndrome (WAS) often suffer from poorly understood exaggerated immune responses that result in autoimmunity and elevated levels of serum IgE. Here, we have shown that WAS patients and mice deficient in WAS protein (WASP) frequently develop IgE-mediated reactions to common food allergens. WASP-deficient animals displayed an adjuvant-free IgE-sensitization to chow antigens that was most pronounced for wheat and soy and occurred under specific pathogen-free as well as germ-free housing conditions...
October 3, 2016: Journal of Clinical Investigation
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
Felix Husslik, Jasmin Nürnberg, Christian Seutter von Loetzen, Timo Mews, Barbara K Ballmer-Weber, Jörg Kleine-Tebbe, Regina Treudler, Jan-Christoph Simon, Stefanie Randow, Elke Völker, Andreas Reuter, Paul Rösch, Stefan Vieths, Thomas Holzhauser, Dirk Schiller
BACKGROUND: Birch pollen-related soy allergy is mediated by Gly m 4. Conformational IgE epitopes of Gly m 4 are unknown. OBJECTIVE: To identify the IgE epitope profile of Gly m 4 in subjects with birch pollen-related soy allergy utilizing an epitope library presented by Gly m 4-type model proteins. METHODS: Sera from patients with (n = 26) and without (n = 19) allergy to soy as determined by oral provocation tests were studied...
August 17, 2016: Clinical and Experimental Allergy: Journal of the British Society for Allergy and Clinical Immunology
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No abstract text is available yet for this article.
August 2016: Journal of Pediatric Gastroenterology and Nutrition
Enrica Pessione, Simona Cirrincione
Lactic acid bacteria (LAB) can produce a huge amount of bioactive compounds. Since their elective habitat is food, especially dairy but also vegetal food, it is frequent to find bioactive molecules in fermented products. Sometimes these compounds can have adverse effects on human health such as biogenic amines (tyramine and histamine), causing allergies, hypertensive crises, and headache. However, some LAB products also display benefits for the consumers. In the present review article, the main nitrogen compounds produced by LAB are considered...
2016: Frontiers in Microbiology
Silvia Salvatore, Yvan Vandenplas
Hydrolyzed proteins are used worldwide in the therapeutic management of infants with allergic manifestations and have long been proposed as a dietetic measure to prevent allergy in at risk infants. The degree and method of hydrolysis, protein source and non-nitrogen components characterize different hydrolyzed formulas (HFs) and may determine clinical efficacy, tolerance and nutritional effects. Cow's milk (CM)-based HFs are classified as extensively (eHF) or partially HF (pHF) based on the percentage of small peptides...
2016: Nestlé Nutrition Institute Workshop Series
M Ponce, S C Diesner, Z Szépfalusi, T Eiwegger
IgE-mediated reactions to food allergens are the most common cause of anaphylaxis in childhood. Although allergies to cow's milk, egg, or soy proteins, in contrast to peanut and tree nut allergens, resolve within the first 6 years of life in up to 60% due to natural tolerance development, this process is not well understood. At present, there is no cure or treatment for food allergy that would result in an induction of tolerance to the symptom-eliciting food. Avoidance, providing an emergency plan and education, is the standard of treatment...
October 2016: Allergy
Nedeljko Radlović, Zoran Leković, Vladimir Radlović, Dusica Simić, Dragana Ristić, Biljana Vuletić
Food allergy represents a highly up-to-date and continually increasing problem of modern man. Although being present in all ages, it most often occures in children aged up to three years. Sensitization most often occurs by a direct way, but it is also possible to be caused by mother's milk, and even transplacentally. Predisposition of inadequate immune response to antigen stimulation, reaginic or nonreaginic, is of non-selective character so that food allergy is often multiple and to a high rate associated with inhalation and/or contact hypersensitivity...
January 2016: Srpski Arhiv za Celokupno Lekarstvo
Pooja Mehta, Shikha Sundaram, Glenn T Furuta, Zhaoxing Pan, Dan Atkins, Scott Markowitz
Propofol is a safe, well-tolerated anesthetic that is labeled as contraindicated in patients with egg or soy allergy. This contraindication has become increasingly problematic given the rising incidence of food allergy and eosinophilic esophagitis (EoE). To address this issue, we studied practice patterns of propofol use for esophagogastroduodenoscopies (EGD) in children with EoE and food allergies at our institution. A retrospective observational study of 1365 EGDs from January 2013 to June 2014 was performed...
June 8, 2016: Journal of Pediatric Gastroenterology and Nutrition
Margitta Worm, Josefine Grünhagen, Sabine Dölle
Anaphylactic reactions due to food occur in the context of food allergy and, together with venom and drugs, are the most frequent elicitors of severe allergic reactions. In small children the most frequent elicitors of severe allergic reactions according to data from the anaphylaxis registry are hen's egg and milk, whereas in school children peanut and hazelnut are frequent elicitors of allergic reactions. Other frequent elicitors of anaphylactic reactions in childhood are wheat and soy. In adults the most frequent elicitors of severe allergic reactions due to food, based on data from the anaphylaxis registry, are wheat, soy, celery, shellfish and hazelnut...
July 2016: Bundesgesundheitsblatt, Gesundheitsforschung, Gesundheitsschutz
Youngshin Han, Jing Lin, Ludmilla Bardina, Galina A Grishina, Chaeyoon Lee, Won Hee Seo, Hugh A Sampson
Ara h 2, a peanut 2S albumin, is associated with severe allergic reactions, but a homologous protein, soybean 2S albumin, is not recognized as an important allergen. Structural difference between these proteins might explain this clinical discrepancy. Therefore, we mapped sequential epitopes and compared the structure of Ara h 2, Soy Al 1, and Soy Al 3 (Gly m 8) to confirm whether structural differences account for the discrepancy in clinical responses to these two proteins. Commercially synthesized peptides covering the full length of Ara h 2 and two soybean 2S albumins were analyzed by peptide microarray...
2016: Molecules: a Journal of Synthetic Chemistry and Natural Product Chemistry
C Richard, E Beaudouin, D A Moneret-Vautrin, C Kohler, V M Nguyen-Grosjean, S Jacquenet
The growing worldwide prevalence of food allergies is drawing attention to the risk of allergenic proteins found in intravenous medicinal products, particularly anaesthetics. Propofol induced anaphylaxis has been described. The presence of soybean oil and egg lecithins in the lipid emulsion highlights their suspected responsibility in certain cases. We report a case of anaphylaxis to propofol in an adult patient without food allergy to soy, but with a latent sensitization to soy. An IgE-dependent allergy to propofol was established by a basophil activation test...
May 2016: European Annals of Allergy and Clinical Immunology
R Asero, G Mistrello, S Amato, D Villalta
A case of adult onset severe soy allergy is discussed. The allergen protein involved did not correspond to those presently detectable by commercial diagnostic means, but was not identified, possibly due to the insufficient level of specific IgE. Fresh foods and commercial food extracts remain an invaluable tool to support the diagnosis of food allergy, both in-vivo and in-vitro.
May 2016: European Annals of Allergy and Clinical Immunology
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