Lifetime exposure to traumatic psychological stress is associated with elevated inflammation in the Heart and Soul...

Area of Science:

• Cardiovascular Disease Research
• Psychological Stress and Health
• Inflammation Biology

Background:

• Psychological stress, particularly trauma, elevates disease risk in cardiovascular disease (CVD) patients.
• Inflammation is a potential mechanism linking stress to CVD development and progression.
• Biological pathways connecting trauma exposure to CVD outcomes require further elucidation.

Purpose of the Study:

• To investigate the association between lifetime trauma exposure and inflammation levels in patients with stable CVD.
• To determine if trauma exposure predicts elevated inflammation at baseline and five-year follow-up.
• To examine the relationship between trauma exposure and changes in inflammation over time.

Main Methods:

• Prospective study of 979 patients with stable CVD.
• Inflammation assessed using a composite score of interleukin-6 (IL-6), tumor necrosis factor-α (TNF-α), C-reactive protein (CRP), and resistin.
• Statistical analyses adjusted for sociodemographic factors, psychiatric disorders, and health behaviors.

Main Results:

• Higher trauma exposure correlated with elevated inflammation at baseline (β=.09, p=.01) and five-year follow-up (β=.09, p=.03).
• No significant association found between trauma exposure and the rate of change in inflammation over time.
• Associations remained robust after adjusting for sociodemographic factors and psychiatric disorders; health behaviors influenced the trauma-inflammation link at follow-up.

Conclusions:

• This study provides the first large-scale evidence linking lifetime trauma exposure to inflammation in CVD patients.
• Elevated inflammation due to high trauma exposure may contribute to accelerated CVD progression.
• Understanding this link is crucial for developing targeted interventions for high-risk CVD populations.