Acute coronary syndrome and depression: A review of shared pathophysiological pathways
Isabelle Granville Smith1, Gordon Parker1, Poppy Rourke1
1School of Psychiatry, Faculty of Medicine, University of New South Wales, Sydney, NSW, Australia.
Insights
Investigating the biological links between acute coronary syndrome (ACS) and major depression reveals shared immune, platelet, and stress response system abnormalities. A unified model is unlikely; neuro-visceral integration offers a better framework for understanding this comorbidity.
Area of Science:
- Cardiovascular Medicine
- Psychiatry
- Psychoneuroimmunology
Background:
- Acute coronary syndrome (ACS) and major depression frequently co-occur.
- Understanding the shared biological underpinnings is crucial for effective treatment.
Purpose of the Study:
- To review evidence for common pathophysiological pathways linking ACS and major depression.
- To conceptualize the interplay of biological systems in ACS-depression comorbidity within a neuro-visceral integration framework.
Main Methods:
- Systematic literature search of MEDLINE, EMBASE, and PubMed.
- Inclusion of relevant articles from retrieved bibliographies.
Main Results:
- No single explanatory model fully captures the complex biological interactions between ACS and depression.
- Shared abnormalities observed in immune, platelet/endothelial, and autonomic/stress-response systems.
Conclusions:
- Neuro-visceral integration provides a more comprehensive framework for future research and treatment of ACS-associated depression.
- Multiple causative scenarios likely contribute to the comorbidity.
Objective:
To examine the evidence for shared pathophysiological pathways in acute coronary syndrome and major depression and to conceptualise the dynamic interplay of biological systems and signalling pathways that link acute coronary syndrome and depression within a framework of neuro-visceral integration.
Methods:
Relevant articles were sourced via a search of published literature from MEDLINE, EMBASE and PubMed using a variety of search terms relating to biological connections between acute coronary syndrome and depression. Additional articles from bibliographies of retrieved papers were assessed and included where relevant.
Results:
Despite considerable research efforts, a clear understanding of the biological processes connecting acute coronary syndrome and depression has not been achieved. Shared abnormalities are evident across the immune, platelet/endothelial and autonomic/stress-response systems. From the available evidence, it seems unlikely that a single explanatory model could account for the complex interactions of biological pathways driving the pathophysiology of these disorders and their comorbidity.
Conclusion:
A broader conceptual framework of mind-body or neuro-visceral integration that can incorporate the existence of several causative scenarios may be more useful in directing future research and treatment approaches for acute coronary syndrome-associated depression.
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