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Maternal Immune Activation and Child Brain Development: A Longitudinal Population-Based Multimodal Neuroimaging Study
Anna Suleri1, Tonya White2, Lot de Witte3
1Department of Child and Adolescent Psychiatry/Psychology, Erasmus University Medical Center, Rotterdam, the Netherlands; Generation R Study Group, Erasmus University Medical Center, Rotterdam, the Netherlands.
Biological Psychiatry. Cognitive Neuroscience and Neuroimaging
|November 4, 2024
Summary
Maternal immune activation (MIA) did not show an association with child brain development in this large population study. Findings suggest MIA may not impact neurodevelopment from childhood to adolescence in the general population.
Area of Science:
- Neuroscience
- Developmental Biology
- Immunology
Background:
- Maternal immune activation (MIA) is hypothesized to affect child neurodevelopment.
- Previous neuroimaging studies are limited, primarily focusing on neonates.
- This study investigates MIA's impact on brain development from childhood to adolescence.
Purpose of the Study:
- To examine the association between maternal immune activation (MIA) and neuroimaging outcomes in children.
- To explore brain development across childhood and adolescence in relation to prenatal MIA.
- To investigate potential differential effects based on timing of MIA or child sex.
Main Methods:
- Utilized data from the Generation R Study (mother-child pairs).
- Measured prenatal inflammatory markers (cytokines, C-reactive protein) to create a cytokine index.
- Assessed brain morphology, white matter microstructure, and functional connectivity using MRI at ages 10 and 14.
Main Results:
- No significant association was found between MIA and neuroimaging outcomes over time.
- No time x MIA interaction was observed.
- Results were consistent across different measures of immune activation and did not differ by timing of MIA or child sex.
Conclusions:
- This longitudinal study found no evidence linking MIA to child brain development in the general population.
- Findings contrast with previous research suggesting MIA can cause brain abnormalities in neonates.
- Further research may be needed to understand MIA's effects in specific contexts or populations.
