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Are there early inflammatory biomarkers that affect neurodevelopment in infancy?
Núria Voltas1, Victoria Arija2, Carmen Hernández-Martínez1
1Research Center for Behavioral Assessment (CRAMC), Department of Psychology, Universitat Rovira i Virgili, Facultat de Ciències de l'Educació i Psicologia, Crta/ de Valls s/n, 43007 Tarragona, Spain; Nutrition and Mental Health Research Group (NUTRISAM), Universitat Rovira i Virgili, Spain.
Early life inflammation, specifically Interleukin-6 (IL-6) at 12 months, is linked to later psychological issues in children. High Interleukin-1 beta (IL-1β) at 6 months predicted poorer motor skills development.
Area of Science:
- Pediatric Health
- Neurodevelopmental Science
- Immunology
Background:
- Limited research exists on early-life inflammatory biomarkers and child neurodevelopment.
- Postnatal inflammation may impact long-term cognitive and behavioral outcomes.
- Understanding these links is crucial for early intervention strategies.
Purpose of the Study:
- To investigate the association between inflammatory cytokines (IL-6, IL-1β, IL-4) and cortisol levels at 6 and 12 months with neurodevelopment and psychological problems at 30 months.
- To identify potential early biomarkers for adverse child development outcomes.
- To explore the relationship between maternal emotional symptoms and child outcomes.
Main Methods:
- Longitudinal study of 51 full-term newborns followed to 30 months.
- Biomarker analysis (IL-6, IL-1β, IL-4, cortisol) from blood samples at 6 and 12 months.
- Neurodevelopment assessed with Bayley Scales of Infant Development-II; psychological problems with CBCL 1.5-5; maternal distress with GHQ-28.
Main Results:
- Elevated IL-6 at 12 months predicted increased internalizing and externalizing behavioral problems at 30 months.
- Higher IL-1β levels at 6 months were associated with poorer motor skills at 30 months.
- No significant associations were found between inflammatory biomarkers and cognitive performance.
Conclusions:
- IL-6 and IL-1β may serve as early indicators for subsequent psychological difficulties and psychomotor impairments.
- Early inflammatory processes warrant further investigation for their role in child neurodevelopment.
- These findings highlight the importance of monitoring inflammatory markers in infancy.
