Pubmed (TSA) du 24/05/26
1. Gnazzo M, Pisanò G, Hedili O, Baldini V, Cesaroni CA, Esposito A, D’Onofrio T, Terracciano AM, Bargiacchi G, Carotenuto M. Dog-assisted therapy and motor coordination in children with autism spectrum disorder: an exploratory pre-post study. Child Neuropsychol;2026 (May 24):1-12.
Motor impairments are highly prevalent in children with autism spectrum disorder (ASD) and negatively affect daily functioning and participation. While animal-assisted interventions have shown benefits in social and emotional domains, their impact on motor coordination remains poorly investigated. This study aimed to evaluate whether a structured dog-assisted therapy (DAT) program was associated with changes in parent-reported motor coordination in children with ASD. We conducted a single-arm, exploratory pre-post study involving a 12-week DAT program delivered twice weekly. Thirty children with ASD (mean age 7.1 ± 1.8 years; 83% male) completed the intervention. Motor coordination was assessed at baseline (T0) and post-intervention (T1) using the Developmental Coordination Disorder Questionnaire (DCDQ). Within-participant changes were analyzed using paired statistical tests, with effect sizes reported. Mean DCDQ total scores increased from 18.5 ± 5.9 at T0 to 48.7 ± 11.0 at T1 (mean change = 30.2 points; 95% CI 26.9-33.4; p < .001), corresponding to a very large effect size (Cohen's d(z) = 3.45). Based on age-specific cutoffs, 57% of participants shifted from an "indicative/suspect" to a "typical" motor coordination range. Attendance was high, and no adverse events were reported. A 12-week dog-assisted therapy program was associated with marked improvements in parent-reported motor coordination in children with ASD. Although findings are preliminary and limited by the uncontrolled design and reliance on parent report, they support further evaluation of DAT in controlled trials incorporating objective motor outcomes.
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2. Lee J, Sayes CM, Mu Y, Giesy JP, Shin HM. Prenatal and early-life exposure to micro- and nanoplastics and autism-relevant neurodevelopment: An integrated review of human, experimental, and mechanistic evidence. J Hazard Mater;2026 (May 16);513:142401.
Autism is a neurodevelopmental condition with increasing global prevalence. Human brain development is particularly vulnerable to environmental perturbations during prenatal and early life, when exposures can alter cellular organization, tissue development, and neural function. Micro- and nanoplastics (MNPs) are emerging environmental contaminants that are ubiquitous in air, water, and food, raising concern due to their potential for chronic, low-level exposure. Their small size may enable MNPs to cross physiological barriers, including the placenta and, potentially, the developing blood-brain barrier. Despite this biological plausibility, evidence linking early-life MNP exposure to autism-related neurodevelopment remains fragmented. This review synthesizes evidence from human biomonitoring studies, experimental neurobehavioral findings, and mechanistic investigations within an autism-focused framework. MNPs have been detected in the placenta, amniotic fluid, meconium, umbilical cord blood, and breastmilk, indicating prenatal and early-life exposure. Detected particles were predominantly polyethylene and polypropylene and were primarily in the micrometer to submicron size range. In rodent models, early-life exposure to MNPs has been associated with autism-relevant behavioral alterations, including deficits in social interaction, often accompanied by increased repetitive behaviors. Fish models showed alterations in early-life locomotor activity but have limited capacity to assess complex social behaviors. Mechanistic evidence implicates convergent pathways, including immune and inflammatory responses, oxidative stress, altered neurotransmitter signaling, and gut-brain axis processes. By organizing exposure characteristics, behavioral phenotypes, and biological pathways in relation to autism-relevant neurodevelopment, this review moves beyond general neurotoxicity paradigms and offers a framework to inform autism-focused epidemiologic research and assessment of MNP-related neurodevelopmental effects.
