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Cerebellar Abnormalities: A Component of Autism Pathophysiology
Rekha Jagadapillai1,2, Idil Tuncali1,2, Naveen Nagarajan1,2
1Department of Pediatrics, Pediatric Research Institute (PRI), University of Louisville, Louisville, KY 40202, USA.
Medicina (Kaunas, Lithuania)
|March 28, 2026
Summary
The cerebellum plays a crucial role in autism spectrum disorder (ASD) development. Cerebellar dysfunction impacts brain development and social behaviors, suggesting it as a potential therapeutic target for ASD.
Area of Science:
- Neuroscience
- Developmental Biology
- Genetics
Background:
- Autism spectrum disorder (ASD) is a complex developmental disorder diagnosed behaviorally.
- Current diagnostic methods lack validated biomarkers.
- The cerebellum's role in ASD pathophysiology has been historically under-researched.
Purpose of the Study:
- To review the cerebellum's potential role in ASD development.
- To explore how cerebellar dysfunction may influence connected neural circuits.
- To investigate the cerebellum's impact on core ASD symptoms.
Main Methods:
- Literature review focusing on cerebellar function in ASD.
- Analysis of developmental and early injury impacts on cerebellar circuitry.
- Examination of cerebellar alterations and their link to ASD symptoms.
Main Results:
- Cerebellar alterations in ASD affect synaptic pruning, immune function, and neurotransmitter systems.
- Changes in the cerebellum can impact blood-brain barrier permeability and signaling pathways.
- Cerebellar dysfunction is implicated in altered brain interconnections and developmental trajectories.
Conclusions:
- Cerebellar dysfunction is a significant factor in ASD pathophysiology.
- Interactions within the cerebellum may contribute to core ASD symptoms.
- Further research into cerebellar mechanisms could yield novel ASD therapies.
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