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Blood pressure lowering efficacy of coenzyme Q10 for primary hypertensionHo MJ, Bellusci A, Wright JM SummaryCoenzyme Q10 for hypertensionCoenzyme Q10 has been studied as a potential treatment for hypertension, a common medical condition. However, there is not enough reliable evidence to show whether or not it can be a useful medication to lower blood pressure. A systematic review was conducted to try and use all available data to answer this question. Databases of clinical trials were searched for any studies that tested the effects of coenzyme Q10 on patients' blood pressure compared to a placebo. The test medications could be added to participants' regular anti-hypertensive medications or be used alone. Three trials with a total of 96 participants were found in which coenzyme Q10 was used in patients with high blood pressure. The patients took coenzyme Q10 or a placebo daily for up to 8-12 weeks. Weighted data analysis showed that the systolic blood pressure was reduced by 11 mmHg and the diastolic blood pressure was lowered by 7 mmHg compared to placebo. However, there are questions about the reliability of the available studies. Therefore, it is still uncertain if coenzyme Q10 could be a useful hypertension treatment, and more studies are needed.
This is a Cochrane review abstract and plain language summary, prepared and maintained by The Cochrane Collaboration, currently published in The Cochrane Database of Systematic Reviews 2010 Issue 1, Copyright © 2010 The Cochrane Collaboration. Published by John Wiley and Sons, Ltd.. The full text of the review is available in The Cochrane Library (ISSN 1464-780X).
This version first published online:
October 07. 2009 AbstractBackgroundStudies have shown that coenzyme Q10 deficiency is associated with cardiovascular disease. Hypertension is a commonly measured surrogate marker for non-fatal and fatal cardiovascular endpoints such as heart attacks and strokes. Clinical trials have suggested that coenzyme Q10 supplementation can effectively lower blood pressure (BP). ObjectivesTo determine the blood pressure lowering effect of coenzyme Q10 in primary hypertension. Search strategyThe Cochrane Central Register of Controlled Trials (2009 Issue 2), MEDLINE (1966 -May 2008), EMBASE (1982 - May 2008), and CINAHL (1970 - May 2008) as well as the reference lists of articles were searched for relevant clinical trials in any language. Selection criteriaDouble-blind, randomized, placebo-controlled parallel or crossover trials evaluating the BP lowering efficacy of coenzyme Q10 for a duration of at least 3 weeks in patients with primary hypertension. Data collection and analysisThe primary author independently assessed the risk of bias and extracted the data. The second author verified data extraction. Main resultsThree clinical trials with a total of 96 participants were evaluated for the effects of coenzyme Q10 on blood pressure compared to placebo. Treatment with coenzyme Q10 in subjects with systolic BP (SBP) > 140 mmHg or diastolic BP (DBP) > 90 mmHg resulted in mean decreases in SBP of 11 mmHg (95% CI 8, 14) and DBP of 7 mmHg (95% CI 5, 8). Authors' conclusionsDue to the possible unreliability of some of the included studies, it is uncertain whether or not coenzyme Q10 reduces blood pressure in the long-term management of primary hypertension. |