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Updated: Jun 25, 2026

Microfluidics in Assessing Platelet Function
Published on: November 8, 2024
Platelet function in patients with major depression
R C Ziegelstein1, K Parakh, A Sakhuja
1Department of Medicine, Johns Hopkins University School of Medicine, Johns Hopkins Bayview Medical Center, 4940 Eastern Avenue, Baltimore, MD 21224-2780, USA. rziegel@jhmi.edu
Insights
Major depression and vascular diseases like heart and cerebrovascular conditions frequently co-occur, suggesting shared causes. Selective serotonin re-uptake inhibitors may increase bleeding risk.
Area of Science:
- Cardiovascular Medicine
- Neuroscience
- Psychiatry
Background:
- Depression, ischemic heart disease, and cerebrovascular disease are leading causes of global morbidity.
- These conditions often coexist, exacerbating health impacts compared to non-depressed patients with chronic diseases.
- The frequent co-occurrence suggests potential common genetic predispositions, shared risk factors, or a pathophysiological link.
Purpose of the Study:
- To explore the potential pathophysiological link between major depression and conditions involving platelet activation.
- To review evidence connecting selective serotonin re-uptake inhibitors (SSRIs) to an increased risk of bleeding.
Main Methods:
- Literature review focusing on the roles of serotoninergic and adrenergic signaling in depression and platelet function.
- Examination of studies investigating the association between depression, vascular diseases, and SSRI use.
Main Results:
- Serotonin and adrenergic signaling are implicated in both major depression and platelet activation, a key factor in vascular disease.
- Evidence suggests a link between SSRI use and an elevated risk of bleeding.
Conclusions:
- A potential pathophysiological connection exists between major depression and vascular diseases due to shared signaling pathways.
- Clinicians should consider the increased bleeding risk associated with SSRIs, particularly in patients with vascular conditions.
Abstract:
Depression, ischaemic heart disease and cerebrovascular disease are important causes of morbidity and are among the leading contributors to global health burden. These conditions often occur in the same patient, resulting in considerably greater effect on health than combinations of chronic diseases without depression. The frequent occurrence of these conditions in the same patient raises the possibility of a common genetic predisposition, similar risk factors or a pathophysiological link. Serotoninergic and adrenergic signalling play important roles in causing major depression and also in platelet activation and aggregation, which underlies vascular disease. This review discusses the potential pathophysiological link between major depression and conditions in which platelet activation plays an important role and also provides evidence linking the use of the most commonly used antidepressant drugs (i.e. the selective serotonin re-uptake inhibitors) to increased risk of bleeding.
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