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Free Radic Res. 2002 Apr;36(4):437-43.

Regulatory aspects of coenzyme Q metabolism.

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Department of Biochemistry and Biophysics, Stockholm University, Sweden.


A number of factors are involved in the regulation of the amount and distribution of coenzyme Q in cells and tissues. These factors modify preferentially the biosynthetic mechanism in order to keep up an optimal tissue concentration of the lipid. The amount of substrate provided by the mevalonate pathway is able to both up- and down-regulate the velocity of synthesis. At the translation level, regulation occurs by receptor-mediated ligand binding and appears most clearly upon treatment with hormones and peroxisomal inducers. There are a number of pathophysiological conditions when these mechanisms of regulation are modified and explain the decreased coenzyme Q tissue concentrations. It is of considerable interest to establish appropriate physiological, hormonal and drug-mediated conditions in order to counteract disturbed cellular functions caused by coenzyme Q deficiency

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