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  • Title: Effect of chlorpromazine on rat arterial lipid synthesis, in vitro.
    Author: Bell FP, Hubert EV.
    Journal: Lipids; 1982 Oct; 17(10):672-5. PubMed ID: 7176823.
    Abstract:
    The effect of chlorpromazine, a major tranquilizer, on arterial lipid metabolism was studied in vitro in rat aortas incubated with [14C]acetate and [14C]mevalonate as lipid precursors. Chlorpromazine at a level of 0.25 mM in the incubation medium significantly reduced the incorporation of [14C]acetate into free fatty acids (p less than 0.01) and total phospholipids (p less than 0.001) but not triglycerides. Chlorpromazine also altered the pattern of arterial phospholipids synthesized from [14C]acetate by significantly increasing the relative proportion of phosphatidylinositol plus phosphatidylserine (p less than 0.02) and reducing the relative proportion of sphingomyelin (p less than 0.001). [14C] Acetate incorporation into the combined fractions of steryl esters plus hydrocarbons and sterols plus diglycerides was also significantly reduced (p less than 0.001) by 0.25 mM chlorpromazine. Studies with [14C]mevalonate showed that chlorpromazine is also an inhibitor of sterol biosynthesis in arterial tissues as evidenced by 35-40% reductions (p less than 0.05) in the formation of 14C-labeled squalene and C27 sterols.
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