The Autism Spectrum Disorder and Its Possible Origins in Pregnancy

Area of Science:

• Neurodevelopmental Disorders
• Pediatric Health
• Environmental Epidemiology

Background:

• Autism Spectrum Disorder (ASD) is a prevalent neurodevelopmental disorder affecting approximately 1 in 100 children globally.
• ASD diagnosis requires persistent deficits in social communication and interaction, alongside restricted, repetitive behaviors.
• The exact causes of ASD remain uncertain, with evidence pointing towards multifactorial origins, including prenatal environmental exposures.

Purpose of the Study:

• To review current scientific literature on gestational factors potentially associated with ASD development.
• To identify maternal exposures during pregnancy that may serve as risk factors for ASD.
• To provide health professionals with updated information for ASD prevention and management.

Main Methods:

• Systematic literature review of recent studies on prenatal exposures and ASD.
• Analysis of data linking maternal gestational exposures (biological, chemical, physical) to fetal neurodevelopment.
• Synthesis of findings on environmental hazards impacting the maternal-fetal dyad and ASD outcomes.

Main Results:

• Maternal exposure to various environmental hazards during gestation is increasingly implicated in altered fetal neurodevelopment.
• Specific biological, chemical, and physical agents encountered during pregnancy have been proposed as contributors to ASD.
• Disruption of the maternal-fetal balance by environmental stressors can negatively impact neurodevelopmental trajectories.

Conclusions:

• Gestational environmental exposures represent a significant area of research for understanding ASD etiology.
• Identifying these prenatal risk factors is crucial for developing targeted prevention and intervention strategies.
• Further research is needed to elucidate the precise mechanisms linking maternal exposures to ASD development.