Billets de Michelle Dawson

Billet publié sur Bluesky le 20/12/2025 11:34

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In autistic & ADHD 6-21 year-olds, "GI symptoms may be a feature of social communication deficits and restrictive-repetitive behaviors rather than a feature of a diagnosis"? onlinelibrary.wiley.com/doi/10.1002/... cross-sectional study, "did not control for medications or behavioral therapies"

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Publication avec DOI Récupéré Publication crossref

Shane Cleary, Sarah Asbury, Russell J. Schachar, Jennifer Crosbie, Robert Nicolson, Rosanna Weksberg, Elizabeth Kelley, Jessica Jones, et al. (2026). Transdiagnostic Behavioral Phenotypes and Comorbid Gastrointestinal Symptoms in Neurodevelopmental Disorders: An Exploratory Study. Autism Research, 19(1), e70143. Wiley.

Date de publication
19/12/2025
Identifiant
10.1002/aur.70143
Auteurs
Shane Cleary, Sarah Asbury, Russell J. Schachar, Jennifer Crosbie, Robert Nicolson, Rosanna Weksberg, Elizabeth Kelley, Jessica Jones, Muhammad Ayub, Stelios Georgiades, Evdokia Anagnostou, Jane A. Foster
Source
Autism Research
Détails
19(1), e70143
Type de référence
article
Éditeur
Wiley
Source de métadonnées
crossref

Résumé

ABSTRACT Neurodevelopmental disorders (NDD), including autism spectrum disorder (ASD) and attention deficit hyperactivity disorder (ADHD), have heterogeneous behavioral phenotypes and substantial symptom overlap. Identifying transdiagnostic subgroups may help clarify this heterogeneity. This study aimed to identify behavior‐based subgroups of children with NDD and explore links between gastrointestinal (GI) symptoms and behavioral symptoms. Using data from the Province of Ontario Neurodevelopmental Disorders (POND) network, we applied a heterogeneous mixture model (HMM) to behavioral data from 1716 participants, including typically developing (TD, n = 210), ASD (n = 747), and ADHD (n = 759) and identified six distinct clusters. Five of the clusters included individuals with TD, ADHD, and ASD diagnoses. The remaining cluster exhibited the most severe behavior phenotype and was exclusively ADHD and ASD participants. Notably, GI symptoms were significantly more prevalent in the cluster with the most severe behavioral profile (χ 2 (5) = 64.4, p < 0.0001), which is comparable to previous reports linking GI symptoms to more severe clinical symptoms in NDD. These findings emphasize the importance of considering behavioral dimensions over diagnostic labels to identify NDD subgroups. Further research that focuses on signaling pathways of the gut‐brain axis will help understand the biological mechanisms that contribute to individual differences in behavioral profiles in NDDs.

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