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http://www.lef.org/magazine/mag2008/feb2008_Alleviating-Congestive-Heart-Failure-With-Coenzyme-Q10_01.htmCoenzyme Q10 and Congestive Heart Failure
In the late 1960s and early 1970s, it became clear that patients suffering from congestive heart failure had measurable deficiency of CoQ10 in both blood and heart muscle, and that the degree of deficiency correlated with the severity of heart failure. Much of this work was performed as a collaborative effort between Professor Karl Folkers, PhD, Gian Paolo Littarru, MD, and Denton Cooley, MD.2 In 1980, my father, cardio-logist Per H. Langsjoen, MD, met with Karl Folkers, and together they performed the first human trial of CoQ10 in the treatment of congestive heart failure in the United States.3 I joined my father as a cardiology fellow in 1983 and after this favorable controlled study was published in 1985, we went on to evaluate the long-term efficacy of CoQ10 therapy in 126 patients with congestive heart failure.4
Figure 1. Statin Therapy, Plasma CoQ10, and Congestive Heart Failure
Coenzyme Q10 and Congestive Heart Failure
This demonstrates the simultaneous drop in
plasma CoQ10 level and ejection fraction in a
70-year-old female patient started on statin therapy.
Note that ejection fraction and CoQ10 level increased
after statin therapy was discontinued.
Congestive heart failure is a condition in which there is weakening of heart muscle function so that fluid or congestion backs up and causes swelling or edema in the liver, lungs, the lining of the intestine, and the lower legs and feet. It was our initial concern that CoQ10 may have been acting as a stimulant that could bring about short-term improvement in heart muscle function but actually increase mortality over time. This is similar to flogging an exhausted horse, making him run faster for a few hundred yards only to promptly drop dead. By following these 126 heart failure patients for six years, it became clear that the improvement in heart function was sustained and that overall mortality was one third of expected.4 It was at this time that we realized CoQ10 represented a major advance in the treatment of a disease that previously could be only palliated and never cured.