Effect of Vanadium Administration on Coenzyme Q Metabolism in Rats

Abstract
Vanadium administration results in decreases in coenzyme A (CoA), coenzyme Q (CoQ), and succinoxidase activity in rat livers. Changes are similar to those in pantothenic acid (PA) deficiency and suggest a primary interference by vanadium in the metabolism of either PA or its functional form, CoA, leading to a decrease in CoQ. Simultaneous administration of calcium pantothenate, 1-cysteine hydrochloride and disodium adenosine triphosphate affords a marked protection against vanadium.