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Pain, Depression and Inflammation: Are Interconnected Causative Factors Involved?
1Department of Pharmacology, National University of Ireland, Galway, Ireland.
Modern Trends in Pharmacopsychiatry
|October 6, 2015
Summary
Chronic inflammation links major depression and chronic pain, suggesting new drug targets. Understanding these psychoneuroendocrine pathways is key for treating these prevalent co-morbidities.
Area of Science:
- Neuroscience
- Psychiatry
- Immunology
Background:
- Co-morbid depression and chronic pain are common conditions.
- Bidirectional pathways between the brain, immune, endocrine, and neurotransmitter systems are implicated in these disorders.
Purpose of the Study:
- To review the role of chronic inflammation as a common mediator between depression and chronic pain.
- To examine the psychoneuroendocrine hypothesis in relation to these co-morbidities.
Main Methods:
- Literature review accessing evidence for the psychoneuroendocrine hypothesis.
- Analysis of stress, inflammation, pain, and depression interconnections.
- Exploration of cellular mechanisms linking chronic inflammation to pain and depression.
Main Results:
- Stress initiates chronic inflammation in major depression.
- Pain is often a component and initiator of depression.
- Chronic inflammation provides a significant link between chronic pain and depression.
Conclusions:
- Chronic inflammation is a critical factor in the co-morbidity of depression and chronic pain.
- Understanding these mechanisms may lead to novel therapeutic strategies.
- Targeting inflammation could improve treatment outcomes for patients with co-morbid depression and pain.
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