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Antipsychotics increase steroidogenic enzyme gene expression in the rat brainstem
Katarzyna Bogus1, Małgorzata Żarczyńska1, Artur Pałasz2
1Department of Histology, Faculty of Medical Sciences in Katowice, Medical University of Silesia, ul. Medyków 18, 40-752, Katowice, Poland.
Molecular Biology Reports
|November 19, 2021
Summary
Chronic treatment with antipsychotics olanzapine and haloperidol increased the expression of key steroidogenic enzymes, including aromatase, 3β-HSD, and P450scc, in the rat brainstem. This suggests a link between neuroleptic action and neurosteroidogenesis.
Area of Science:
- Neuroscience
- Pharmacology
- Molecular Biology
Background:
- Neurosteroids play crucial roles in brain function and are implicated in the mechanisms of neuropsychiatric drugs.
- Limited research exists on the combined effects of chronic neurosteroid treatment and antipsychotics on steroidogenic enzyme expression.
Purpose of the Study:
- To investigate the impact of chronic olanzapine and haloperidol treatment on the gene expression of key steroidogenic enzymes in the rat brainstem.
Main Methods:
- Adult male Sprague-Dawley rats were divided into control, olanzapine-treated, and haloperidol-treated groups.
- Real-Time PCR was used to quantify the gene expression of aromatase, 3β-HSD, and P450scc in brainstem samples.
Main Results:
- Both olanzapine and haloperidol treatments led to increased gene expression of aromatase, 3β-HSD, and P450scc in the brainstem.
- These findings indicate modulation of steroidogenic enzyme expression by long-term antipsychotic administration.
Conclusions:
- The study reveals a potential regulatory interplay between antipsychotic actions and steroidogenesis within brainstem neuronal centers.
- These findings contribute to understanding the pharmacology of antipsychotics and their influence on neurosteroid pathways.
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