Fetal inflammatory response and risk for psychiatric disorders

Area of Science:

• Neuroscience
• Developmental Pediatrics
• Obstetrics

Background:

• Maternal intrauterine environment and placental health significantly influence fetal brain development and neuropsychiatric disorder risk.
• Childhood-onset neuropsychiatric disorders are increasingly linked to inflammatory processes.

Purpose of the Study:

• To investigate the association between fetal inflammatory syndrome (FIRS), characterized by placental inflammation, and the incidence of neuropsychiatric disorders in children.
• To identify specific neuropsychiatric conditions associated with FIRS.

Main Methods:

• Retrospective cohort study utilizing electronic medical records from a 19-year period.
• Included 4851 children with FIRS (chorionic vasculitis and/or funisitis) and 31,927 controls.
• Follow-up for at least 5 years to assess primary outcome (neuropsychiatric disorders) and secondary outcomes (medications, hospitalizations).

Main Results:

• Children with FIRS demonstrated a significantly higher likelihood of developing neuropsychiatric disorders (OR=1.21, CI 95% [1.09, 1.35]).
• Increased risks were observed for autism spectrum disorder (OR=1.35), ADHD (OR=1.27), conduct disorder (OR=1.50), and PTSD (OR=2.46).
• Adjustments were made for maternal psychiatric history, substance use, and anti-inflammatory drug prescriptions.

Conclusions:

• Placental inflammation (FIRS) is associated with an increased risk of childhood neuropsychiatric disorders.
• Findings highlight the importance of the intrauterine environment in neurodevelopmental outcomes.
• Implications for enhanced research, early detection, monitoring, and treatment strategies for affected children.