Microbiome Disturbances and Autism Spectrum Disorders

Area of Science:

• Neuroscience
• Microbiology
• Gastroenterology

Background:

• Autism spectrum disorders (ASDs) are complex neurodevelopmental conditions with rising diagnoses.
• While genetics play a role, environmental factors and comorbidities like gastrointestinal disorders are increasingly investigated.
• The microbiota-gut-brain axis is a key area of research, linking gut bacteria to brain function.

Purpose of the Study:

• To review the evidence correlating gut dysbiosis with ASD risk and severity in animal models and humans.
• To explore the potential impact of other body microbiomes (oral, vaginal, placental) on neurodevelopmental disorders.
• To examine various therapeutic interventions targeting the gut microbiota for ASD.

Main Methods:

• Literature review of animal models and human epidemiological studies on gut microbiota and ASD.
• Analysis of research on microbial communities beyond the gut.
• Evaluation of therapeutic strategies including diet, prebiotics, probiotics, and fecal transplantation.

Main Results:

• Growing evidence links gut dysbiosis to ASD symptomology in both animal models and human studies.
• Alterations in gut microbiota composition are associated with increased ASD risk and severity.
• Emerging research suggests other body microbiomes may also influence brain health.

Conclusions:

• Gut dysbiosis is a significant factor potentially contributing to ASD.
• Targeting the gut microbiota presents promising therapeutic avenues for ASD management.
• Further research is needed to elucidate the complex mechanisms of the microbiota-gut-brain axis in neurodevelopmental disorders.