| Lipidomic analyses of the mouse brain after antidepressant treatment: evidence for endogenous release of long-chain fatty acids? | |
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MedLine Citation:
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PMID: 19203412 Owner: NLM Status: In-Data-Review |
Abstract/OtherAbstract:
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Recently, there has been considerable interest in a possible link between changes in brain polyunsaturated fatty acids, neural membrane phospholipid degradation, serotonergic neurotransmission, and depression. The present study aims to examine effects of antidepressants on lipids in different regions of the brain at individual molecular species level, using the novel technique of lipidomics. Balb/C mice received daily intraperitoneal (i.p.) injections of 10 mg/kg of the antidepressants maprotiline, fluoxetine and paroxetine for 4 wk. The prefrontal cortex, hippocampus, striatum and cerebellum were harvested, and lipid profiles compared to those of saline-injected mice. Treatment with maprotiline and paroxetine, but not fluoxetine, resulted in significant decreases in phosphatidylcholine (PC) species, PC36:1, PC38:3, PC40:2p, PC40:6, PC40:5, PC42:7p, PC42:6p and PC42:5p in the prefrontal neocortex. The decreases in phospholipids were accompanied by increases in lysophospholipid species, lysoPC16:0, lysoPC18:2 and lysoPC18:0 in the prefrontal cortex, indicating increase in phospholipase A2 activity and possible release of long-chain fatty acids. Maprotiline and paroxetine treatment also resulted in decreases in sphingomyelin and increases in several ceramide species in the prefrontal cortex. It is postulated that endogenous release of long-chain fatty acids may be related to the mechanism of action of maprotiline and paroxetine. |
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Authors:
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Lynette Hui-Wen Lee; Guanghou Shui; Akhlaq A Farooqui; Markus R Wenk; Chay-Hoon Tan; Wei-Yi Ong |
Publication Detail:
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Type: Journal Article Date: 2009-02-10 |
Journal Detail:
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Title: The international journal of neuropsychopharmacology / official scientific journal of the Collegium Internationale Neuropsychopharmacologicum (CINP) Volume: 12 ISSN: 1469-5111 ISO Abbreviation: Int. J. Neuropsychopharmacol. Publication Date: 2009 Aug |
Date Detail:
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Created Date: 2011-05-17 Completed Date: - Revised Date: - |
Medline Journal Info:
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Nlm Unique ID: 9815893 Medline TA: Int J Neuropsychopharmacol Country: England |
Other Details:
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Languages: eng Pagination: 953-64 Citation Subset: IM |
Affiliation:
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Department of Pharmacology, National University of Singapore, Singapore. |
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine
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