Prenatal maternal C-reactive protein prospectively predicts child executive functioning at ages 4-6 years

Area of Science:

• Neuroscience
• Developmental Psychology
• Reproductive Medicine

Background:

• Childhood executive functioning (EF) is crucial for development.
• Maternal health during pregnancy can impact child neurodevelopment.
• Previous research has explored links between maternal factors and child EF, but timing and specific biomarkers require further investigation.

Purpose of the Study:

• To prospectively examine maternal preconception and prenatal biomarkers as predictors of child executive functioning (EF).
• To investigate the specific timing of maternal biomarker exposure (e.g., C-reactive protein, HbA1C, blood pressure) in relation to child cognitive flexibility and response inhibition.

Main Methods:

• Prospective longitudinal study of 100 mother-child dyads.
• Assayed maternal glycated hemoglobin (HbA1C), C-reactive protein (CRP), and blood pressure (BP) preconceptionally and during prenatal trimesters.
• Assessed child EF (cognitive flexibility, response inhibition) at ages 4-6 years.

Main Results:

• Higher third-trimester maternal CRP uniquely predicted poorer child cognitive flexibility, independent of other maternal biomarkers and covariates.
• Maternal HbA1C and blood pressure did not predict child EF.
• Child response inhibition was not associated with any maternal biomarkers.

Conclusions:

• Maternal inflammation during the third trimester is a significant predictor of deficits in child cognitive flexibility.
• The timing of maternal inflammation exposure is critical for its impact on child EF.
• These findings underscore the importance of monitoring maternal inflammation during pregnancy for child neurodevelopmental outcomes.