Depression and vascular disease: what is the relationship?
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Published on: October 22, 2014
Alan J Thomas1, Rajesh N Kalaria, John T O'Brien
1Wolfson Research Centre, Department of Psychiatry and Institute for Ageing and Health, University of Newcastle upon Tyne, Newcastle upon Tyne NE4 6BE, UK. a.j.thomas@ncl.ac.uk
Insights
Depression and vascular diseases share a two-way relationship, with evidence suggesting they influence each other. Further research is needed to understand the mechanisms and effective treatments for this connection.
Area of Science:
- Cardiovascular Medicine
- Psychiatry
- Neuroscience
Background:
- The vascular depression hypothesis suggests vascular disease contributes to depression.
- This hypothesis has driven research into the link between depression and vascular conditions.
Purpose of the Study:
- To investigate the complex relationship between depression and various vascular diseases.
- To review potential mechanisms underlying this association.
Main Methods:
- Review of epidemiological, clinical, neuroimaging, and neuropathology studies.
- Examination of research on depression's link to coronary artery disease, stroke, blood pressure, vascular dementia, diabetes, and cholesterol.
- Analysis of potential causal mechanisms.
Main Results:
- Abundant evidence confirms a bidirectional association between depression and vascular diseases.
- Plausible mechanisms exist explaining how depression can exacerbate vascular conditions and vice versa.
Conclusions:
- Depression and vascular diseases exhibit a clear bidirectional relationship.
- Further investigation is required to elucidate underlying mechanisms and evaluate treatment benefits for patients with both conditions.
Background:
the 'vascular depression' hypothesis proposes that vascular disease predisposes to, precipitates or perpetuates depression, and this proposal has stimulated further research into the relationship of depression to vascular disease.
Methods:
We investigated the nature of the relationship between depression and vascular diseases by reviewing epidemiological, clinical, neuroimaging and neuropathology studies which have reported on the relationship of depression to coronary artery disease, stroke disease, alterations in blood pressure, vascular dementia, diabetes mellitus and cholesterol levels and by reviewing potential mechanisms by which depression could be associated with vascular diseases.
Results:
there is abundant and increasing evidence from these different lines of research that depression has a bidirectional association with vascular diseases and plausible mechanisms exist which explain how depression might increase these vascular diseases and vice versa.
Limitations:
this was not a systematic review and so not every report of relevance has been included.
Conclusions:
depression has a clear bidirectional relationship with vascular diseases. Further study is needed to clarify the mechanisms involved and to investigate the benefits of conventional and novel treatments for vascular diseases in depressive illness.
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