Gut Microbiota and Autism Spectrum Disorders: Neurodevelopmental, Behavioral, and Gastrointestinal Interactions.

Researchers studied gut bacteria in 45 autistic children and found that factors like birth delivery method, age, sex, and diet affected their gut health. Children born vaginally had more helpful bacteria than those born by cesarean section. High-calorie, high-protein diets were linked to harmful bacteria. The study found connections between gut bacteria and children's communication, social skills, and stomach problems, suggesting that improving gut health might help autism symptoms.

This study examined gut microbiota in 45 children with autism spectrum disorder (ASD) aged 2-18 years using 16S rRNA gene sequencing. Researchers analyzed correlations between microbial profiles and clinical features including ASD subtypes, adaptive functioning, gastrointestinal symptoms, and dietary patterns. Key findings showed gut microbiota composition was significantly influenced by delivery mode, age, sex, and diet. Vaginally delivered children had higher beneficial short-chain fatty acid-producing bacteria, while cesarean delivery was associated with increased pathogenic bacteria.

High-calorie, protein-rich diets correlated with pro-inflammatory bacterial shifts. Microbial diversity and specific genera correlated with adaptive behavior domains and gastrointestinal symptom severity, suggesting potential for microbiota-targeted interventions.

Findings support considering gut microbiota assessment in comprehensive ASD evaluations. Birth history and dietary patterns should be considered in treatment planning. Results suggest potential for microbiota-targeted interventions, though further research needed to establish efficacy and safety in autism populations.

Single cross-sectional study with relatively small sample size (45 participants). Study design unclear from abstract. No control group mentioned. Correlational findings cannot establish causation between microbiota and clinical outcomes.

Autism spectrum disorder (ASD) is a complex neurodevelopmental condition characterized by social communication deficits, repetitive behaviors, and frequent gastrointestinal comorbidities. Emerging research suggests gut microbiota alterations contribute to ASD symptoms and gastrointestinal dysfunction, but detailed microbial profiles and clinical correlations remain underexplored. This study analyzed gut microbiota in 45 children aged 2-18 years diagnosed with ASD. Stool samples underwent 16S rRNA gene sequencing.

Clinical assessments included ASD diagnostic subtype, adaptive functioning using the Vineland Adaptive Behavior Scale, gastrointestinal symptoms as per the Rome IV criteria, dietary patterns, and demographic variables. Statistical analyses correlated microbiota profiles with clinical features. Gut microbiota composition was significantly influenced by delivery mode, age, sex, and diet. Vaginally delivered children had higher beneficial SCFA-producing bacteria, whereas Cesarean section was linked to increased pathogenic.

High-calorie and protein-rich diets correlated with shifts toward pro-inflammatory taxa. Microbial diversity and specific genera correlated with adaptive behavior domains (communication, socialization, motor skills) and severity of gastrointestinal symptoms. Both pro-inflammatory and anti-inflammatory bacteria variably impacted neurodevelopmental outcomes. Gut microbiota composition in children with ASD is shaped by multifactorial influences and connected to neurobehavioral and gastrointestinal phenotypes.

The findings of this study support the potential of microbiota-targeted interventions to ameliorate ASD-associated symptoms and improve quality of life.