ArticlePediatric allergy and immunology : official publication of the European Society of Pediatric Allergy and Immunology2025
Impact of oral immunotherapy on diversity of gut microbiota in food-allergic children.
Article in Pediatric allergy and immunology : official publication of the European Society of Pediatric Allergy and Immunology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed.
- Review
- Deep phenotyping of infants and toddlers undergoing food oral immunotherapy (DINOSAUR): design and baseline characteristics of a prospective multi-omics cohort.Frontiers in allergy · 2026Article
- Impact of Periodontal Host-Modulation Therapies on Oral-Gut Microbiome Axis in Periodontitis Patients with Hematological Diseases: A Narrative Review.Life (Basel, Switzerland) · 2025Review
- Impact of oral immunotherapy on diversity of gut microbiota in food-allergic children.Pediatric allergy and immunology : official publication of the European Society of Pediatric Allergy and Immunology · 2025Article
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14 authors.
Funding
Abstract
backgroundFood allergies (FAs) are an increasing public health concern, particularly in children. Oral immunotherapy (OIT) is an emerging treatment strategy under clinical investigation for desensitization of children with FA to food allergens. Dysbiosis of the gut microbiota has been implicated in FAs, and various factors influence its composition; however, the impact of OIT on the gut microbiota remains largely unexplored.
objectiveThis study aimed to identify the changes in diversity of the gut microbiota following OIT in children with FA.
methodsThirty children with FA (mean age 3.93 years, age range 2.00-14.00) undergoing oral immunotherapy targeting legumes (lentils, peanuts, peas), tree nuts (cashews, hazelnuts, pistachios), animal products (milk, egg), and fish and shellfish (salmon, shrimp), as well as seven non-allergic controls (mean age 2.65 years, age range 0.25-5.00) participated in this study. Fecal samples were collected before and after OIT from children with FA, and once from controls. The gut microbiota was profiled using 16S rRNA sequencing, followed by diversity and differential abundance analyses. Alpha and beta diversities were compared, and differential abundance was assessed.
resultsBeta diversity analysis revealed small but significant differences in microbial composition between children with FA before and after OIT, and between controls and children with FA before OIT. Differential abundance analysis showed that OIT induced a reversion of the abundance levels of Bacteroidota and Verrucomicrobiota toward those observed in controls.
conclusionTo our knowledge, this is the first study to investigate the impact of OIT on the gut microbiota in children with different FAs for identifying potential microbial biomarkers and convincingly demonstrated their interrelation. These findings may help improve and personalize FA treatment.
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