NDLI: Valproyl-CoA and Esterified Valproic Acid Are Not Found in Brains of Rats Treated with Valproic Acid, but the Brain Concentrations of CoA and Acetyl-CoA Are Altered

Content Provider	Springer Nature Link
Author	Deutsch, Joseph Rapoport, Stanley I. Rosenberger, Thad A.
Copyright Year	2003
Abstract	Sodium valproate and lithium are used to treat bipolar disorder. In rats, both reduce the turnover of arachidonic acid in several brain phospholipids, suggesting that arachidonate turnover is a common target of action of these mood stabilizers. However, the mechanisms by which these drugs reduce arachidonate turnover in brain are not the same. Lithium decreases turnover by reducing the activity and expression of the 85-kDa type IVA cytosolic phospholipase A$_{2}$ (cPLA$_{2}$); valproate does not affect cPLA$_{2}$ activity or expression. To test whether valproate alters neural membrane order by direct esterification into phospholipid or by interrupting intermediary CoA metabolism, we measured valproyl-CoA, esterified valproate, and short chain acyl-CoAs in brains from control rats and rats treated chronically with sodium valproate. Valproyl-CoA and esterified forms of valproate were not found in brain with detection limits of 25 and 37.5 pmol/g brain$^{−1}$, respectively. Valproate treatment did result in a 1.4-fold decrease and 1.5-fold increase in the brain concentrations of free CoA and acetyl-CoA when compared to control. Therefore the reduction of brain arachidonic acid turnover by chronic valproate in rats is not related to the formation of valproyl-CoA or esterified valproate, but may involve changes in the intermediary metabolism of CoA and short chain acyl-CoA.
Starting Page	861
Ending Page	866
Page Count	6
File Format	PDF
ISSN	03643190
Journal	Neurochemical Research
Volume Number	28
Issue Number	6
e-ISSN	15736903
Language	English
Publisher	Kluwer Academic Publishers-Plenum Publishers
Publisher Date	2003-01-01
Publisher Place	New York
Access Restriction	One Nation One Subscription (ONOS)
Subject Keyword	Neurosciences Neurology Biochemistry
Content Type	Text
Resource Type	Article
Subject	Medicine Biochemistry Cellular and Molecular Neuroscience

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