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Paradigms for Behavioral Assessment in Drosophila Model of Autism Spectrum Disorder

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Syndromic autism: causes and pathogenetic pathways.

Arianna Benvenuto¹, Romina Moavero, Riccardo Alessandrelli

¹Department of Neuroscience, Pediatric Neurology Unit, Tor Vergata University, via Montpellier 1, 00133, Rome, RM, Italy.

World Journal of Pediatrics : WJP

|August 21, 2009

Summary

This summary is machine-generated.

Understanding autism

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Area of Science:

Neuroscience
Genetics
Developmental Biology

Background:

Autism Spectrum Disorder (ASD) is a complex neurodevelopmental disorder with diverse etiologies.
Recent advancements have improved comprehension of autism's causes and brain development impacts.
This review synthesizes current knowledge on autism's origins and pathogenic pathways.

Purpose of the Study:

To review the current understanding of autism etiologies.
To explore the multiple pathogenetic pathways leading to the autistic phenotype.
To highlight the role of genetic and environmental factors in autism pathogenesis.

Main Methods:

Literature search of the PubMed database.
Keywords used: "autism", "chromosomal abnormalities", "metabolic diseases", "susceptibility loci".

Main Results:

Genetic syndromes, mutations, and metabolic diseases explain <20% of autism cases.
Neocortical excitation/inhibition imbalance and interneuron development issues are key in Fragile X and Tuberous Sclerosis.
Chromosomal abnormalities and candidate genes disrupt neural connections, brain growth, and synaptic morphology.
Metabolic and mitochondrial defects can cause neuronal damage and altered neurotransmission.

Conclusions:

Cytogenetic abnormalities are increasingly identified, especially in individuals with dysmorphic features.
Metabolic screening is recommended for autistic regression or suggestive clinical signs.
Discovering specific etiologies reduces the proportion of idiopathic autism.
Genetic, epigenetic, and environmental factors are crucial for understanding autism pathogenesis.
Neuropediatricians play a vital role in elucidating neurological underpinnings and identifying homogenous subgroups with biomarkers.