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Coenzyme Q10

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What are Coenzyme Q10's other names?

  • 4-benzoquinone
  • CoQ10
  • Trans 2
  • Ubiquinol
  • Ubiquinone

What is Coenzyme Q10's recommended dosage?

  • Recommended daily intake: 90 - 200 mg
  • Recommended daily doses: 1

What supplements interact with Coenzyme Q10?

  • Coenzyme Q10 and Alpha-Lipoic Acid

  • Coenzyme Q10 and Creatine

  • Coenzyme Q10 and L-Carnitine

  • Coenzyme Q10 and Green Tea Extract

  • Coenzyme Q10 and Vitamin E


What can Coenzyme Q10 help with?

  • Coenzyme Q10 for Fibromyalgia

test
Highly Positive


After CoQ10 treatment, the patient reported a significant improvement of clinical symptoms. At the cellular level, CoQ10 treatment restored mitochondrial dysfunction and the mtDNA copy number, decreased oxidative stress, and increased mitochondrial biogenesis. Our results suggest that CoQ10 could be an alternative therapeutic approach for FM.


test
Highly Positive


Patients were evaluated clinically with Visual Analogical Scale of pain (VAS), and Fibromyalgia Impact Questionnaire (FIQ). Patients with CoQ(10) deficiency showed a statistically significant reduction on symptoms after CoQ(10) treatment during 9 months (300 mg/day). Determination of deficiency and consequent supplementation in FM may result in clinical improvement. Further analysis involving more scientifically rigorous methodology will be required to confirm this observation.


test
Highly Positive


The results of this study suggest a role for mitochondrial dysfunction and oxidative stress in the headache symptoms associated with FM. CoQ10 supplementation should be examined in a larger placebo controlled trial as a possible treatment in FM.


test
Highly Positive


These results lead to the hypothesis that CoQ10 have a potential therapeutic effect in FM, and indicate new potential molecular targets for the therapy of this disease. AMPK could be implicated in the pathophysiology of FM.


test
Highly Positive


This resulted in an increase in coenzyme Q10 levels and a decrease in %CoQ10. No changes were observed in FFA levels or their composition. However, plasma levels of FC and CE significantly decreased and the ratio of FC to CE also significantly decreased, suggesting that ubiquinol-10 supplementation improved cholesterol metabolism. Ubiquinol-10 supplementation also improved chronic fatigue scores as measured by the Chalder Fatigue Scale.


  • Coenzyme Q10 for Peyronie's Disease

  • Coenzyme Q10 for Prader-Willi Syndrome

  • Coenzyme Q10 for Exercise Capacity (with Heart Conditions)

test
Slightly Positive


CoQ(10) treatment attenuated the rise in lactate after cycle ergometry, increased (∽1.93 ml) VO(2)/kg lean mass after 5 minutes of cycling (P < 0.005), and decreased gray matter choline-containing compounds (P < 0.05). Sixty days of moderate- to high-dose CoQ(10) treatment had minor effects on cycle exercise aerobic capacity and post-exercise lactate but did not affect other clinically relevant variables such as strength or resting lactate.


test
Slightly Positive


Oral CoQ(10) improves functional capacity, endothelial function, and LV contractility in CHF without any side effects. The combination of CoQ(10) and ET resulted in higher plasma CoQ(10) levels and more pronounced effects on all the abovementioned parameters. However, significant synergistic effect of CoQ(10) with ET was observed only for peak SWTI suggesting that ET amplifies the already described effect of CoQ(10) on contractility of dysfunctional myocardium.


test
Slightly Positive


The mean interventricular septal thickness (IVS) showed a 22.4% reduction (p < 0.005). The mean posterior wall thickness showed a 23.1% reduction (p < 0.005). No patient in the treatment Group had ventricular tachycardia (VT) whereas 4 cases in the control group had VT. In both groups 1 patient was lost due to sudden cardiac death (SCD).


test
Slightly Positive


This study suggests that oral Q-ter and creatine, added to conventional drug therapy, exert some beneficial effect on physical performance in stable systolic CHF. Results may support the design of larger studies aimed at assessing the long-term effects of this treatment on functional status and harder outcomes.


  • Coenzyme Q10 for Exercise-induced Fatigue

  • Coenzyme Q10 for Fatigue

  • Coenzyme Q10 for Migraine

  • Coenzyme Q10 for Muscle Soreness

  • Coenzyme Q10 for Oxidative Damage

test
Slightly Positive


Coenzyme Q(10) supplementation improves endothelial function of conduit arteries of the peripheral circulation in dyslipidaemic patients with Type II diabetes. The mechanism could involve increased endothelial release and/or activity of nitric oxide due to improvement in vascular oxidative stress, an effect that might not be reflected by changes in plasma F(2)-isoprostane concentrations.


test
Slightly Positive


Coenzyme Q10 supplements at a dose of 150 mg can decrease oxidative stress and increase antioxidant enzyme activity in patients with CAD. A higher dose of coenzyme Q10 supplements (>150 mg/d) might promote rapid and sustainable antioxidation in patients with CAD.


test
Slightly Positive


In conclusion, Med diet reduces postprandial oxidative stress by reducing processes of cellular oxidation and increases the action of the antioxidant system in elderly persons and the administration of CoQ further improves this redox balance.


test
Slightly Positive


In conclusion, we found no evidence that coenzyme Q(10) affects fatigue index, arterial stiffness, metabolic parameters, or inflammatory markers.


test
Slightly Positive


Our results provide further evidence suggesting that CoQ10 supplementation is associated with alleviating oxidative stress, although it does not show any significant effects on sperm concentration, motility and morphology. It may be suggested that CoQ10 could be taken as an adjunct therapy in cases of OAT. Further studies are needed to draw a final conclusion.


test
Slightly Positive


The results of this study suggest a role for mitochondrial dysfunction and oxidative stress in the headache symptoms associated with FM. CoQ10 supplementation should be examined in a larger placebo controlled trial as a possible treatment in FM.


  • Coenzyme Q10 for Parkinson's Disease

  • Coenzyme Q10 for Pre-Eclampsia

  • Coenzyme Q10 for Sun Exposure


What is Coenzyme Q10 used for?

  • Coenzyme Q10 for Overall health

test
Highly Positive


After CoQ10 treatment, the patient reported a significant improvement of clinical symptoms. At the cellular level, CoQ10 treatment restored mitochondrial dysfunction and the mtDNA copy number, decreased oxidative stress, and increased mitochondrial biogenesis. Our results suggest that CoQ10 could be an alternative therapeutic approach for FM.


test
Highly Positive


Patients were evaluated clinically with Visual Analogical Scale of pain (VAS), and Fibromyalgia Impact Questionnaire (FIQ). Patients with CoQ(10) deficiency showed a statistically significant reduction on symptoms after CoQ(10) treatment during 9 months (300 mg/day). Determination of deficiency and consequent supplementation in FM may result in clinical improvement. Further analysis involving more scientifically rigorous methodology will be required to confirm this observation.


test
Highly Positive


The results of this study suggest a role for mitochondrial dysfunction and oxidative stress in the headache symptoms associated with FM. CoQ10 supplementation should be examined in a larger placebo controlled trial as a possible treatment in FM.


test
Highly Positive


These results lead to the hypothesis that CoQ10 have a potential therapeutic effect in FM, and indicate new potential molecular targets for the therapy of this disease. AMPK could be implicated in the pathophysiology of FM.


test
Highly Positive


This resulted in an increase in coenzyme Q10 levels and a decrease in %CoQ10. No changes were observed in FFA levels or their composition. However, plasma levels of FC and CE significantly decreased and the ratio of FC to CE also significantly decreased, suggesting that ubiquinol-10 supplementation improved cholesterol metabolism. Ubiquinol-10 supplementation also improved chronic fatigue scores as measured by the Chalder Fatigue Scale.


test
Moderately Positive


In conclusion, while only GH has significant effects on growth and body composition, GH and CoQ(10) therapy act equally on psychomotor development of PWS infants. However, improving psychomotor development may merely reflect an age-related phenomenon additionally depending on early diagnosis and introduction of appropriate care.


test
Slightly Positive


CoQ(10) treatment attenuated the rise in lactate after cycle ergometry, increased (∽1.93 ml) VO(2)/kg lean mass after 5 minutes of cycling (P < 0.005), and decreased gray matter choline-containing compounds (P < 0.05). Sixty days of moderate- to high-dose CoQ(10) treatment had minor effects on cycle exercise aerobic capacity and post-exercise lactate but did not affect other clinically relevant variables such as strength or resting lactate.


test
Slightly Positive


In conclusion, we found no evidence that coenzyme Q(10) affects fatigue index, arterial stiffness, metabolic parameters, or inflammatory markers.


test
Slightly Positive


The mean interventricular septal thickness (IVS) showed a 22.4% reduction (p < 0.005). The mean posterior wall thickness showed a 23.1% reduction (p < 0.005). No patient in the treatment Group had ventricular tachycardia (VT) whereas 4 cases in the control group had VT. In both groups 1 patient was lost due to sudden cardiac death (SCD).


  • Coenzyme Q10 for Men's health

  • Coenzyme Q10 for Antioxidant potential

test
Moderately Positive


Although there is an increased demand for plasma CoQ10 during endurance exercise and CoQ10 supplement can depress lipid peroxidation, there is no effect of CoQ10 supplementation on liver mitochondrial function and aerobic capacity in adolescent athletes.


test
Moderately Positive


In patients with ischaemic LVSD, 8 weeks supplement of CoQ improved mitochondrial function and FMD; and the improvement of FMD correlated with the change in mitochondrial function, suggesting that CoQ improved endothelial function via reversal of mitochondrial dysfunction in patients with ischaemic LVSD.


test
Moderately Positive


Our results provide further evidence suggesting that CoQ10 supplementation is associated with alleviating oxidative stress, although it does not show any significant effects on sperm concentration, motility and morphology. It may be suggested that CoQ10 could be taken as an adjunct therapy in cases of OAT. Further studies are needed to draw a final conclusion.


test
Moderately Positive


The results of this study suggest a role for mitochondrial dysfunction and oxidative stress in the headache symptoms associated with FM. CoQ10 supplementation should be examined in a larger placebo controlled trial as a possible treatment in FM.


test
Slightly Positive


Coenzyme Q(10) supplementation improves endothelial function of conduit arteries of the peripheral circulation in dyslipidaemic patients with Type II diabetes. The mechanism could involve increased endothelial release and/or activity of nitric oxide due to improvement in vascular oxidative stress, an effect that might not be reflected by changes in plasma F(2)-isoprostane concentrations.


test
Slightly Positive


Coenzyme Q10 supplements at a dose of 150 mg can decrease oxidative stress and increase antioxidant enzyme activity in patients with CAD. A higher dose of coenzyme Q10 supplements (>150 mg/d) might promote rapid and sustainable antioxidation in patients with CAD.


test
Slightly Positive


In conclusion, Med diet reduces postprandial oxidative stress by reducing processes of cellular oxidation and increases the action of the antioxidant system in elderly persons and the administration of CoQ further improves this redox balance.


test
Slightly Positive


In conclusion, we found no evidence that coenzyme Q(10) affects fatigue index, arterial stiffness, metabolic parameters, or inflammatory markers.


  • Coenzyme Q10 for Insulin control

  • Coenzyme Q10 for Mental health

  • Coenzyme Q10 for Energy

  • Coenzyme Q10 for Reproduction

  • Coenzyme Q10 for Muscle building

test
Slightly Positive


Although in theory Q10 could be beneficial for exercise capacity and in decreasing oxidative stress, the present study could not demonstrate that such effects exist after supplementation with a recommended dose.


test
Slightly Positive


Although there is an increased demand for plasma CoQ10 during endurance exercise and CoQ10 supplement can depress lipid peroxidation, there is no effect of CoQ10 supplementation on liver mitochondrial function and aerobic capacity in adolescent athletes.


test
Slightly Positive


Coenzyme Q10 supplementation partially prevents the increase in lipid peroxidation after repeated short-term supramaximal exercise.


test
Slightly Positive


CoQ(10) treatment attenuated the rise in lactate after cycle ergometry, increased (∽1.93 ml) VO(2)/kg lean mass after 5 minutes of cycling (P < 0.005), and decreased gray matter choline-containing compounds (P < 0.05). Sixty days of moderate- to high-dose CoQ(10) treatment had minor effects on cycle exercise aerobic capacity and post-exercise lactate but did not affect other clinically relevant variables such as strength or resting lactate.


test
Slightly Positive


Improvements in the ED relaxation and endothelium-bound ecSOD activity might be related to CoQ(10) capability of enhancing endothelial functionality by counteracting nitric oxide oxidation. The enhancement of peak VO(2) and of O(2) pulse is likely due to the bioenergetic effect of CoQ(10); on the other end, the improved VO(2) could also depend on the observed enhanced peripheral endothelial function.


test
Slightly Positive


Oral administration of coenzyme Q10 improved subjective fatigue sensation and physical performance during fatigue-inducing workload trials and might prevent unfavorable conditions as a result of physical fatigue.


test
Slightly Positive


Oral CoQ(10) improves functional capacity, endothelial function, and LV contractility in CHF without any side effects. The combination of CoQ(10) and ET resulted in higher plasma CoQ(10) levels and more pronounced effects on all the abovementioned parameters. However, significant synergistic effect of CoQ(10) with ET was observed only for peak SWTI suggesting that ET amplifies the already described effect of CoQ(10) on contractility of dysfunctional myocardium.


test
Slightly Positive


Serum CK (at 3 d), Mb (at 3 d) and lipid peroxide (at 3 d and 5 d) of the CoQ10 group were lower than those of the placebo group. The leucocyte counts in the placebo group significantly increased (at 3 d) and neutrophils significantly increased in both groups (at 3 d and 5 d). Serum scavenging activity against superoxide anion did not change in either group. These results indicate that CoQ10 supplementation reduced exercise-induced muscular injury in athletes.


test
Slightly Positive


The mean interventricular septal thickness (IVS) showed a 22.4% reduction (p < 0.005). The mean posterior wall thickness showed a 23.1% reduction (p < 0.005). No patient in the treatment Group had ventricular tachycardia (VT) whereas 4 cases in the control group had VT. In both groups 1 patient was lost due to sudden cardiac death (SCD).


test
Slightly Positive


This study suggests that oral Q-ter and creatine, added to conventional drug therapy, exert some beneficial effect on physical performance in stable systolic CHF. Results may support the design of larger studies aimed at assessing the long-term effects of this treatment on functional status and harder outcomes.


  • Coenzyme Q10 for Skin, hair and nails

  • Coenzyme Q10 for Heart health

test
Slightly Positive


Although it is possible that coenzyme Q(10) may improve BP control under some circumstances, any effects are likely to be smaller than reported in previous meta-analyses. Furthermore, our data suggest that coenzyme Q(10) is not currently indicated as adjunctive antihypertensive treatment for patients with the metabolic syndrome whose BP control is inadequate, despite regular antihypertensive therapy.


test
Slightly Positive


Coenzyme Q(10) supplementation improves endothelial function of conduit arteries of the peripheral circulation in dyslipidaemic patients with Type II diabetes. The mechanism could involve increased endothelial release and/or activity of nitric oxide due to improvement in vascular oxidative stress, an effect that might not be reflected by changes in plasma F(2)-isoprostane concentrations.


test
Slightly Positive


Coenzyme Q10 supplementation is associated with significant improvement in endothelial function. The current study supports a role for CoQ10 supplementation in patients with endothelial dysfunction.


test
Slightly Positive


CoQ(10) supplementation improved endothelial dysfunction in statin-treated type 2 diabetic patients, possibly by altering local vascular oxidative stress.


test
Slightly Positive


Improvements in the ED relaxation and endothelium-bound ecSOD activity might be related to CoQ(10) capability of enhancing endothelial functionality by counteracting nitric oxide oxidation. The enhancement of peak VO(2) and of O(2) pulse is likely due to the bioenergetic effect of CoQ(10); on the other end, the improved VO(2) could also depend on the observed enhanced peripheral endothelial function.


test
Slightly Positive


In conclusion, we found no evidence that coenzyme Q(10) affects fatigue index, arterial stiffness, metabolic parameters, or inflammatory markers.


test
Slightly Positive


In patients with ischaemic LVSD, 8 weeks supplement of CoQ improved mitochondrial function and FMD; and the improvement of FMD correlated with the change in mitochondrial function, suggesting that CoQ improved endothelial function via reversal of mitochondrial dysfunction in patients with ischaemic LVSD.


test
Slightly Positive


One dose of CoQ10 does not have any effect on ECG variables and exhibits only mild and transient effect on systolic blood pressure in young, healthy people.


test
Slightly Positive


Oral CoQ(10) improves functional capacity, endothelial function, and LV contractility in CHF without any side effects. The combination of CoQ(10) and ET resulted in higher plasma CoQ(10) levels and more pronounced effects on all the abovementioned parameters. However, significant synergistic effect of CoQ(10) with ET was observed only for peak SWTI suggesting that ET amplifies the already described effect of CoQ(10) on contractility of dysfunctional myocardium.


test
Slightly Positive


Our results suggest CoQ may be safely offered to hypertensive patients as an alternative treatment option.


test
Slightly Positive


The mean interventricular septal thickness (IVS) showed a 22.4% reduction (p < 0.005). The mean posterior wall thickness showed a 23.1% reduction (p < 0.005). No patient in the treatment Group had ventricular tachycardia (VT) whereas 4 cases in the control group had VT. In both groups 1 patient was lost due to sudden cardiac death (SCD).


test
Slightly Positive


These results show that CoQ supplementation may improve blood pressure and long-term glycaemic control in subjects with type 2 diabetes, but these improvements were not associated with reduced oxidative stress, as assessed by F2-isoprostanes.


  • Coenzyme Q10 for Testosterone

  • Coenzyme Q10 for Women's health


What are Coenzyme Q10's effects on the body?

  • Coenzyme Q10 for the Nervous System

After CoQ10 treatment, the patient reported a significant improvement of clinical symptoms. At the cellular level, CoQ10 treatment restored mitochondrial dysfunction and the mtDNA copy number, decreased oxidative stress, and increased mitochondrial biogenesis. Our results suggest that CoQ10 could be an alternative therapeutic approach for FM.


Patients were evaluated clinically with Visual Analogical Scale of pain (VAS), and Fibromyalgia Impact Questionnaire (FIQ). Patients with CoQ(10) deficiency showed a statistically significant reduction on symptoms after CoQ(10) treatment during 9 months (300 mg/day). Determination of deficiency and consequent supplementation in FM may result in clinical improvement. Further analysis involving more scientifically rigorous methodology will be required to confirm this observation.


The results of this study suggest a role for mitochondrial dysfunction and oxidative stress in the headache symptoms associated with FM. CoQ10 supplementation should be examined in a larger placebo controlled trial as a possible treatment in FM.


These results lead to the hypothesis that CoQ10 have a potential therapeutic effect in FM, and indicate new potential molecular targets for the therapy of this disease. AMPK could be implicated in the pathophysiology of FM.


This resulted in an increase in coenzyme Q10 levels and a decrease in %CoQ10. No changes were observed in FFA levels or their composition. However, plasma levels of FC and CE significantly decreased and the ratio of FC to CE also significantly decreased, suggesting that ubiquinol-10 supplementation improved cholesterol metabolism. Ubiquinol-10 supplementation also improved chronic fatigue scores as measured by the Chalder Fatigue Scale.


In conclusion, while only GH has significant effects on growth and body composition, GH and CoQ(10) therapy act equally on psychomotor development of PWS infants. However, improving psychomotor development may merely reflect an age-related phenomenon additionally depending on early diagnosis and introduction of appropriate care.


CoQ(10) supplementation provided a significant (P=0.01) mild symptomatic benefit on PD symptoms and a significantly (F((1,24))=8.48, P=0.008) better improvement of FMT performance compared with placebo. Our results indicate a moderate beneficial effect of oral CoQ(10) supplementation in PD patients.


Fatigue indexes decreased with CoQ10 supplementation, but these decreases did not differ from that seen with placebo supplementation. According to these results, CoQ10 may show performance-enhancing effects during the repeated bouts of supramaximal exercises and CoQ10 might be used as ergogenic aid.


In conclusion, we found no evidence that coenzyme Q(10) affects fatigue index, arterial stiffness, metabolic parameters, or inflammatory markers.


Oral administration of coenzyme Q10 improved subjective fatigue sensation and physical performance during fatigue-inducing workload trials and might prevent unfavorable conditions as a result of physical fatigue.


Overall, results of the study demonstrate that children and adolescents with migraine improved over time with multidisciplinary, standardized treatment regardless of supplementation with CoQ10 or placebo. There was no difference in headache outcomes between the CoQ10 and placebo groups at day 224. Due to the improvements seen in weeks 1-4, CoQ10 may lead to earlier improvement in headache severity, but given the sample size this conclusion warrants further investigation with a larger sample.


  • Coenzyme Q10 for the Overall Systems

Although there is an increased demand for plasma CoQ10 during endurance exercise and CoQ10 supplement can depress lipid peroxidation, there is no effect of CoQ10 supplementation on liver mitochondrial function and aerobic capacity in adolescent athletes.


In patients with ischaemic LVSD, 8 weeks supplement of CoQ improved mitochondrial function and FMD; and the improvement of FMD correlated with the change in mitochondrial function, suggesting that CoQ improved endothelial function via reversal of mitochondrial dysfunction in patients with ischaemic LVSD.


Our results provide further evidence suggesting that CoQ10 supplementation is associated with alleviating oxidative stress, although it does not show any significant effects on sperm concentration, motility and morphology. It may be suggested that CoQ10 could be taken as an adjunct therapy in cases of OAT. Further studies are needed to draw a final conclusion.


The results of this study suggest a role for mitochondrial dysfunction and oxidative stress in the headache symptoms associated with FM. CoQ10 supplementation should be examined in a larger placebo controlled trial as a possible treatment in FM.


Coenzyme Q(10) supplementation improves endothelial function of conduit arteries of the peripheral circulation in dyslipidaemic patients with Type II diabetes. The mechanism could involve increased endothelial release and/or activity of nitric oxide due to improvement in vascular oxidative stress, an effect that might not be reflected by changes in plasma F(2)-isoprostane concentrations.


Coenzyme Q10 supplements at a dose of 150 mg can decrease oxidative stress and increase antioxidant enzyme activity in patients with CAD. A higher dose of coenzyme Q10 supplements (>150 mg/d) might promote rapid and sustainable antioxidation in patients with CAD.


CoQ(10) treatment attenuated the rise in lactate after cycle ergometry, increased (∽1.93 ml) VO(2)/kg lean mass after 5 minutes of cycling (P < 0.005), and decreased gray matter choline-containing compounds (P < 0.05). Sixty days of moderate- to high-dose CoQ(10) treatment had minor effects on cycle exercise aerobic capacity and post-exercise lactate but did not affect other clinically relevant variables such as strength or resting lactate.


In conclusion, Med diet reduces postprandial oxidative stress by reducing processes of cellular oxidation and increases the action of the antioxidant system in elderly persons and the administration of CoQ further improves this redox balance.


In conclusion, we found no evidence that coenzyme Q(10) affects fatigue index, arterial stiffness, metabolic parameters, or inflammatory markers.


The mean interventricular septal thickness (IVS) showed a 22.4% reduction (p < 0.005). The mean posterior wall thickness showed a 23.1% reduction (p < 0.005). No patient in the treatment Group had ventricular tachycardia (VT) whereas 4 cases in the control group had VT. In both groups 1 patient was lost due to sudden cardiac death (SCD).


  • Coenzyme Q10 for the Reproductive System

  • Coenzyme Q10 for the Cardiovascular System

Although it is possible that coenzyme Q(10) may improve BP control under some circumstances, any effects are likely to be smaller than reported in previous meta-analyses. Furthermore, our data suggest that coenzyme Q(10) is not currently indicated as adjunctive antihypertensive treatment for patients with the metabolic syndrome whose BP control is inadequate, despite regular antihypertensive therapy.


Coenzyme Q(10) supplementation improves endothelial function of conduit arteries of the peripheral circulation in dyslipidaemic patients with Type II diabetes. The mechanism could involve increased endothelial release and/or activity of nitric oxide due to improvement in vascular oxidative stress, an effect that might not be reflected by changes in plasma F(2)-isoprostane concentrations.


Coenzyme Q10 supplementation is associated with significant improvement in endothelial function. The current study supports a role for CoQ10 supplementation in patients with endothelial dysfunction.


CoQ(10) supplementation improved endothelial dysfunction in statin-treated type 2 diabetic patients, possibly by altering local vascular oxidative stress.


Improvements in the ED relaxation and endothelium-bound ecSOD activity might be related to CoQ(10) capability of enhancing endothelial functionality by counteracting nitric oxide oxidation. The enhancement of peak VO(2) and of O(2) pulse is likely due to the bioenergetic effect of CoQ(10); on the other end, the improved VO(2) could also depend on the observed enhanced peripheral endothelial function.


In conclusion, we found no evidence that coenzyme Q(10) affects fatigue index, arterial stiffness, metabolic parameters, or inflammatory markers.


In patients with ischaemic LVSD, 8 weeks supplement of CoQ improved mitochondrial function and FMD; and the improvement of FMD correlated with the change in mitochondrial function, suggesting that CoQ improved endothelial function via reversal of mitochondrial dysfunction in patients with ischaemic LVSD.


One dose of CoQ10 does not have any effect on ECG variables and exhibits only mild and transient effect on systolic blood pressure in young, healthy people.


Oral CoQ(10) improves functional capacity, endothelial function, and LV contractility in CHF without any side effects. The combination of CoQ(10) and ET resulted in higher plasma CoQ(10) levels and more pronounced effects on all the abovementioned parameters. However, significant synergistic effect of CoQ(10) with ET was observed only for peak SWTI suggesting that ET amplifies the already described effect of CoQ(10) on contractility of dysfunctional myocardium.


Our results suggest CoQ may be safely offered to hypertensive patients as an alternative treatment option.


The mean interventricular septal thickness (IVS) showed a 22.4% reduction (p < 0.005). The mean posterior wall thickness showed a 23.1% reduction (p < 0.005). No patient in the treatment Group had ventricular tachycardia (VT) whereas 4 cases in the control group had VT. In both groups 1 patient was lost due to sudden cardiac death (SCD).


These results show that CoQ supplementation may improve blood pressure and long-term glycaemic control in subjects with type 2 diabetes, but these improvements were not associated with reduced oxidative stress, as assessed by F2-isoprostanes.


  • Coenzyme Q10 for the Muscular System

Although in theory Q10 could be beneficial for exercise capacity and in decreasing oxidative stress, the present study could not demonstrate that such effects exist after supplementation with a recommended dose.


Although there is an increased demand for plasma CoQ10 during endurance exercise and CoQ10 supplement can depress lipid peroxidation, there is no effect of CoQ10 supplementation on liver mitochondrial function and aerobic capacity in adolescent athletes.


Coenzyme Q10 supplementation partially prevents the increase in lipid peroxidation after repeated short-term supramaximal exercise.


CoQ(10) treatment attenuated the rise in lactate after cycle ergometry, increased (∽1.93 ml) VO(2)/kg lean mass after 5 minutes of cycling (P < 0.005), and decreased gray matter choline-containing compounds (P < 0.05). Sixty days of moderate- to high-dose CoQ(10) treatment had minor effects on cycle exercise aerobic capacity and post-exercise lactate but did not affect other clinically relevant variables such as strength or resting lactate.


Oral administration of coenzyme Q10 improved subjective fatigue sensation and physical performance during fatigue-inducing workload trials and might prevent unfavorable conditions as a result of physical fatigue.


Oral CoQ(10) improves functional capacity, endothelial function, and LV contractility in CHF without any side effects. The combination of CoQ(10) and ET resulted in higher plasma CoQ(10) levels and more pronounced effects on all the abovementioned parameters. However, significant synergistic effect of CoQ(10) with ET was observed only for peak SWTI suggesting that ET amplifies the already described effect of CoQ(10) on contractility of dysfunctional myocardium.


Serum CK (at 3 d), Mb (at 3 d) and lipid peroxide (at 3 d and 5 d) of the CoQ10 group were lower than those of the placebo group. The leucocyte counts in the placebo group significantly increased (at 3 d) and neutrophils significantly increased in both groups (at 3 d and 5 d). Serum scavenging activity against superoxide anion did not change in either group. These results indicate that CoQ10 supplementation reduced exercise-induced muscular injury in athletes.


The mean interventricular septal thickness (IVS) showed a 22.4% reduction (p < 0.005). The mean posterior wall thickness showed a 23.1% reduction (p < 0.005). No patient in the treatment Group had ventricular tachycardia (VT) whereas 4 cases in the control group had VT. In both groups 1 patient was lost due to sudden cardiac death (SCD).


This study suggests that oral Q-ter and creatine, added to conventional drug therapy, exert some beneficial effect on physical performance in stable systolic CHF. Results may support the design of larger studies aimed at assessing the long-term effects of this treatment on functional status and harder outcomes.


  • Coenzyme Q10 for the Endocrine System

  • Coenzyme Q10 for the Respiratory System

  • Coenzyme Q10 for the Integumentary system

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