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