Background: Low-dose reactive wheat-allergic children are at a high risk of a positive oral food challenge (OFC). The present study aimed to evaluate whether the results of a very low-dose (VL) OFC would contribute to better wheat allergy management in this population.
Methods: We retrospectively reviewed wheat-allergic subjects who underwent a VL OFC with 2 g of udon noodles (equivalent to 53 mg of wheat protein) and had a previous allergic reaction to <15 g of udon noodles (equivalent to 400 mg of wheat protein) within 2 years before the OFC. Subjects who passed the OFC were defined as VL tolerant; those who failed were considered VL reactive. In VL tolerant subjects, the dose was increased to 15 g of udon noodles either during an OFC in our hospital or gradually at home.
Results: Of the 57 included subjects (median age, 2.9 years; range, 1.0-11.8 years), 32 (56%) were VL tolerant and 25 (44%) were VL reactive. Most reactions during the OFC could be treated with an antihistamine and/or a nebulized β2 agonist. VL tolerant subjects consumed 2 g of udon noodles or a seasoning containing wheat. Within a year after the OFC, 18 VL tolerant subjects (56%), but no VL reactive subjects, were able to consume 15 g of udon noodles (p < 0.001).
Conclusions: A VL OFC can shift the management of some low-dose reactive wheat-allergic children from complete avoidance to partial wheat intake.
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http://dx.doi.org/10.1016/j.alit.2015.07.011 | DOI Listing |
J Appl Toxicol
January 2025
College of Food Science and Nutritional Engineering, China Agricultural University, Beijing, China.
Collagens are biofunctional proteins that have been widely used in many fields, including biomedical, cosmetics, and skin care for their value in maintaining the integrity of cellular membranes. Collagens are also commonly consumed in foods and provide a source of protein and amino acids. As part of the safety assessment for this particular recombinant humanized type III (RHTypeIII) collagen produced by Komagataella phaffii SMD1168-2COL3, a series of toxicological tests were conducted.
View Article and Find Full Text PDFYonsei Med J
January 2025
Department of Internal Medicine, Kangwon National University School of Medicine, Chuncheon, Korea.
Screening tests for specific immunoglobulin E (sIgE) to food allergens, such as the multiple allergen simultaneous test (MAST), are widely used in patients with suspected food allergies in South Korea. We evaluated whether MAST could effectively screen wheat-dependent exercise-induced anaphylaxis (WDEIA) and α-gal syndrome (AGS). We retrospectively reviewed patients with WDEIA and AGS diagnosed with unequivocal history and positive sIgE results for omega-5 gliadin and α-gal using ImmunoCAP, respectively.
View Article and Find Full Text PDFNutrition
November 2024
UGC Pediatrics, Hospital de la Axarquía, Vélez-Málaga, Málaga, Spain.
Among the possible adverse reactions to gluten, celiac disease, non-celiac gluten sensitivity, and IgE-mediated wheat allergy have been classically described. A non-IgE-mediated reaction similar to food protein-induced enterocolitis syndrome (FPIES) after inadvertent gluten ingestion in a celiac patient was recently reported. We present three children affected by celiac disease with exquisite control, including appropriate adherence to an exclusion diet, who suffered a severe adverse food reaction after unappreciated outdoor ingestion of gluten, meeting the criteria for a definitive diagnosis of FPIES.
View Article and Find Full Text PDFBiosensors (Basel)
December 2024
Instituto Interuniversitario de Investigación de Reconocimiento Molecular y Desarrollo Tecnológico (IDM), Universitat Politècnica de València, Universitat de València, Camino de Vera s/n, E46022 Valencia, Spain.
(1) Background: In drug discovery and pharmaceutical quality control, a challenge is to assess protein extracts used for allergy therapy and in vivo diagnosis, such as prick tests. Indeed, there are significant differences between the features of marketed products due to variations in raw materials, purification processes, and formulation techniques. (2) Methods: A protein array technology has been developed to provide comprehensive information on protein-biomarker interactions on a large scale to support the pharmaceutical industry and clinical research.
View Article and Find Full Text PDFACS Omega
December 2024
Graduate Institute of Biomedical Optomechatronics, Taipei Medical University, Taipei 110, Taiwan.
In recent years, food allergies and food sensitivities have remained critical public health problems that affect approximately 15% of the global population. Wheat is a major food source worldwide, but it is also a common food allergen. Celiac disease is chronic immune-mediated enteropathy triggered by exposure to dietary gluten in genetically predisposed individuals; it can be treated only through strict gluten avoidance.
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