Clomipramine-induced serum prolactin as a marker for serotonin and dopamine turnover: results of an open label study
| Autor: | Ansgar Klimke, Thomas Hohlfeld, Gunnar Regenbrecht, Wolfgang Gaebel, S. Löffler, Christian Werner, Christian Schmidt-Kraepelin, Joachim Cordes, Johanna Thünker, Rolf Larisch, Marcus W. Agelink, Uwe Henning, Kai G. Kahl |
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| Rok vydání: | 2010 |
| Předmět: |
Adult
Male medicine.medical_specialty Clomipramine Serotonin Dopamine Pharmacology Antidepressive Agents Tricyclic Serotonergic chemistry.chemical_compound Internal medicine medicine Humans Pharmacology (medical) Biological Psychiatry Sex Characteristics business.industry Dopaminergic Homovanillic acid Homovanillic Acid General Medicine Hydroxyindoleacetic Acid Prolactin Psychiatry and Mental health Monoamine neurotransmitter Endocrinology chemistry Injections Intravenous Female business hormones hormone substitutes and hormone antagonists Biomarkers medicine.drug |
| Zdroj: | European archives of psychiatry and clinical neuroscience. 261(8) |
| ISSN: | 1433-8491 |
| Popis: | Central nervous system (CNS) monoamine deficits have been linked to a number of pathological conditions such as major depressive disorder. Individual biological variations in 5-hydroxyindoleacetic acid (5-HIAA), homovanillic acid (HVA) and 3-methoxy-4-hydroxyphenylglycol (MHPG) might account for the variation in responses of neurotransmitter systems observed after the administration of clomipramine. The prolactin response to clomipramine has been widely used to assess CNS functioning. This open label study investigates the prolactin response induced by clomipramine in the plasma of healthy volunteers and whether it is related to changes in monoamine metabolites. The effects of clomipramine challenge on prolactin, 5-HIAA, HVA and MHPG were measured in 12 healthy volunteers. Samples were drawn directly before and 50 min after clomipramine infusion. A statistically significant increase in serum prolactin concentrations was measured in women 50 min after CMI infusion, but not in men. We found no significant increases in the serum monoamine metabolite concentrations 50 min after CMI infusion. Changes in HVA and 5-HIAA correlated statistically significantly and positively with the amount of prolactin release in the whole sample. Furthermore, positive correlations were found between ∆(50-0 min) 5-HIAA and ∆(50-0 min) HVA, although we did not find a correlation between ∆(50-0 min) prolactin and ∆(50-0 min) MHPG after clomipramine challenge. The pronounced prolactin release in healthy adult women might indicate a higher physiological sensitivity. Correlations between intra-individual changes in HVA, 5-HIAA and serum prolactin might indicate a central nervous effect of clomipramine on monoamine turnover. We conclude that monoamine changes in relation to prolactin response after clomipramine challenge may be suitable for characterizing the relationship between central serotonergic and dopaminergic function. |
| Databáze: | OpenAIRE |
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