Octanoic Acid Inhibits Astrocyte Volume Control: Implications for Cerebtral Edema in Reye's Syndrome

Document Type

Article

Publication Date

4-1-1989

Identifier/URL

40996016 (Pure); 2538563 (PubMed)

Abstract

Octanoic acid has been implicated in the pathogenesis of cytotoxic cerebral edema in Reye's syndrome. Using astrocytes from primary culture, we studied the dose-dependent effects of octanoate on cellular volume regulation and metabolism. Astrocyte volume recovery following hypoosmotic swelling was stimulated by 1.0 mM octanoate and inhibited by 3.0 mM octanoate. Parallel effects were obtained at these concentrations on the activity of the Na+,K+-depen-dent ATPase. Cellular ATP concentrations also were reduced 36% with the higher octanoate concentration. These effects of octanoate may contribute to the severe astrocyte swelling observed in the brains of Reye's syndrome patients.

DOI

10.1111/j.1471-4159.1989.tb01866.x

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