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Increased coronary events in depressed cardiovascular patients: 5-HT2A receptor as missing link?

Annique Schins1, Adriaan Honig, Harrie Crijns

  • 1Department of Psychiatry, Academic Hospital Maastricht, Maastricht, The Netherlands.

Psychosomatic Medicine
|September 26, 2003
PubMed

Insights

Major depressive disorder increases cardiac risk through enhanced platelet activation. Antidepressants may influence this serotonin-mediated platelet hyperactivity, potentially reducing thromboembolic events in patients with heart disease.

Area of Science:

  • Cardiovascular Medicine
  • Neuroscience
  • Pharmacology

Background:

  • Major depressive disorder is a risk factor for cardiac events.
  • Depression's role in thrombotic events may involve platelet activation.

Purpose of the Study:

  • Review platelet activation and aggregation in depressed patients.
  • Summarize antidepressant effects on platelet parameters.

Main Methods:

  • Literature search (MEDLINE, PsycInfo, 1990-2003).
  • Keywords: platelet activation, aggregation, depression, ischemic heart disease, calcium, serotonin.

Main Results:

  • Depressed patients show enhanced platelet activation and aggregation.
  • Hyperactive platelet 5-HT2A receptor signaling observed in depression.

Conclusions:

  • Depression linked to increased serotonin-mediated platelet activation.
  • Altered 5-HT receptors may increase thromboembolic risk.
  • Antidepressants targeting 5-HT2A receptors might modulate platelet reactivity.
Abstract

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