Association between early life adversity and inflammation during infancy

Area of Science:

• Developmental Psychology
• Pediatric Health
• Immunology

Background:

• Early life adversity is linked to adult inflammation, but infant inflammation and stress are less studied.
• Early adversity may biologically embed, impacting long-term development.
• Understanding infant inflammation is crucial for early health interventions.

Purpose of the Study:

• To examine the association between psychosocial stress and salivary C-reactive protein (CRP) in infants.
• To investigate the impact of socioeconomic disadvantage and maternal stress on infant inflammation.

Main Methods:

• Salivary CRP levels were measured in infants using enzyme immunoassay.
• Socioeconomic disadvantage and maternal psychosocial stress were assessed at 17 months.
• Resting state saliva samples were collected for CRP analysis.

Main Results:

• Both socioeconomic disadvantage and maternal psychosocial stress were independently associated with elevated infant CRP levels.
• Infant CRP levels were higher in the presence of early adversity.
• The study identified a direct link between early adversity and infant inflammatory markers.

Conclusions:

• Early life adversity, including socioeconomic factors and maternal stress, impacts infant inflammation.
• These findings suggest that early adversity can have lasting effects on biological processes.
• Further research is needed on the timing and long-term consequences of early adversity on inflammatory pathways.