special subjects
Coenzyme Q10 (CoQ10)
Claims
CoQ10 is said to be useful because of its antioxidant effect and role in energy metabolism. Specific claims include an anticancer effect mediated by immune stimulation, decreasedinsulinrequirements in patients with diabetes, slowed progression of Parkinson disease, efficacy in treatment of heart failure, and protection against anthracycline cardiotoxicity. The most prominent claim may be ameliorating endothelial cell dysfunction that contributes to cardiovascular disease. Although some preliminary studies suggest CoQ10 may be useful in treating these disorders, results are unclear and more testing is needed. 