Journal of asthma and allergy · 2026
Wheat-Dependent Exercise-Induced Anaphylaxis Patients on a Wheat-Free Diet Exhibit a Gut Microbiota Composition More Similar to Healthy Individuals.
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Du Zhirong, Li Lun, Liu Juan, Wang Haoning, Li Junda, Xu Yingyang, Cui Le, Yin Jia
Аннотация
PURPOSE: There are limited studies on the intestinal microbiome in patients with wheat-dependent exercise-induced anaphylaxis (WDEIA), and changes in the gut microbiome in WDEIA patients after wheat-free diet have not been studied.
METHODS: This is a cross-sectional analysis. Fecal samples and clinical data were collected from 26 non-wheat-free patients with WDEIA, 11 wheat-free patients with WDEIA, and 24 healthy controls (HCs). The gut microbiota was evaluated through metagenomic sequencing.
RESULTS: The sequencing revealed differences in the gut microbiome between patients with WDEIA on a non-wheat-free diet and HCs; more specifically, the non-wheat-free group exhibited a downregulation of two families (Rikenellaceae and Odoribacteraceae), three genera (Alistipes, Odoribacter, and Catenibacterium), and four species (Bacteroides_stercoris, Alistipes_putredinis, Bacteroides_intestinalis, and Bacteroides_cellulosilyticus). A wheat-free diet is associated with intestinal flora more similar to the structure of healthy individuals. The species Bacteroides_stercoris was negatively correlated with T-IgE, and the genus Catenibacterium was negatively correlated with T-IgE, as well as wheat, gluten, or gliadin-specific IgE. The genus Catenibacterium was positively correlated with the healthy control-enriched "Apoptosis (ko04210)" pathway and negatively correlated with the non-wheat-free WDEIA group-enriched "Thyroid hormone signaling pathway (ko04919)" pathway.
CONCLUSION: Patients with WDEIA exhibit a specific gut microbiota signature and function, which demonstrated the potential association between the gut microbiome and WDEIA development. WDEIA patients on a wheat-free diet exhibit a gut microbiome composition more similar to healthy individuals.
METHODS: This is a cross-sectional analysis. Fecal samples and clinical data were collected from 26 non-wheat-free patients with WDEIA, 11 wheat-free patients with WDEIA, and 24 healthy controls (HCs). The gut microbiota was evaluated through metagenomic sequencing.
RESULTS: The sequencing revealed differences in the gut microbiome between patients with WDEIA on a non-wheat-free diet and HCs; more specifically, the non-wheat-free group exhibited a downregulation of two families (Rikenellaceae and Odoribacteraceae), three genera (Alistipes, Odoribacter, and Catenibacterium), and four species (Bacteroides_stercoris, Alistipes_putredinis, Bacteroides_intestinalis, and Bacteroides_cellulosilyticus). A wheat-free diet is associated with intestinal flora more similar to the structure of healthy individuals. The species Bacteroides_stercoris was negatively correlated with T-IgE, and the genus Catenibacterium was negatively correlated with T-IgE, as well as wheat, gluten, or gliadin-specific IgE. The genus Catenibacterium was positively correlated with the healthy control-enriched "Apoptosis (ko04210)" pathway and negatively correlated with the non-wheat-free WDEIA group-enriched "Thyroid hormone signaling pathway (ko04919)" pathway.
CONCLUSION: Patients with WDEIA exhibit a specific gut microbiota signature and function, which demonstrated the potential association between the gut microbiome and WDEIA development. WDEIA patients on a wheat-free diet exhibit a gut microbiome composition more similar to healthy individuals.