Effects of valproate on biogenesis and function of liver mitochondria

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Abstract
The mitochondrial protein content of liver increased, and mitochondria enlarged after prolonged administration of valproic acid (VPA: N-dipropylacetic acid) to rats. The mitochondria showed low specific activities of membrane-bound enzymes, decreased content of cytochrome aa3, and decreased respiration in states 3 and 4. In vitro studies of amino acid incorporation suggested a decrease in protein synthesis in liver mitochondria from VPA-treated rats. Prolonged administration of VPA seems to impair mitochondrial structure and function.