Does platelet serotonin receptor supersensitivity accompany endogenous depression?

Biol Psychiatry. 1989 Feb 15;25(4):375-81. doi: 10.1016/0006-3223(89)90190-x.

Abstract

In a population of drug-free bipolar and unipolar depressed women, it was found that the concentration of serotonin sufficient to induce half-maximal shape change velocity in platelets is significantly (p less than 0.001) lower (0.13 +/- 0.0.04 microM) than that of closely matched controls (0.532 +/- 0.1 microM). This platelet concentration becomes higher after 1-3 months of antidepressant treatment (0.47 +/- 0.16 microM). Possible mechanisms for this up- or down-regulation of platelet serotonin receptor responsiveness are discussed.

MeSH terms

  • Adult
  • Antidepressive Agents / therapeutic use*
  • Bipolar Disorder / blood
  • Bipolar Disorder / drug therapy*
  • Blood Platelets / drug effects*
  • Carbazoles / therapeutic use
  • Depressive Disorder / blood
  • Depressive Disorder / drug therapy*
  • Female
  • Humans
  • Imipramine / therapeutic use
  • Male
  • Maprotiline / therapeutic use
  • Middle Aged
  • Platelet Aggregation / drug effects
  • Receptors, Serotonin / drug effects*
  • Serotonin / blood*

Substances

  • Antidepressive Agents
  • Carbazoles
  • Receptors, Serotonin
  • Maprotiline
  • Serotonin
  • Imipramine
  • pirlindole