Evidence map›Paper›PMID 40833470›Full record

SynthesisEuropean journal of clinical pharmacology2025

The effect of coenzyme Q10 supplementation on depressive symptoms and anxiety: a systematic review and meta-analysis of randomized controlled trials.

Rami Akwan, Muhammad M Elsharkawy, Azzam Zrineh, Areen Amleh, Bashar Douden, Mays Alhouseini, Layla Alsaeed, Mohamed Eldesouki

Abstract readMeta-AnalysisSystematic Review
PubMed Publisher
In one paragraph

Synthesis in European journal of clinical pharmacology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 2 papers.

0numbers the graph read from it
0cells of the map it votes in
2citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

2 citing papers in PubMed.

  1. Review
  2. Review
4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

8 authors.

Rami AkwanSyrian Private University, Damascus, Syria.
Muhammad M ElsharkawyAlexandria Main University Hospital, Alexandria, Egypt. muhammad.elsharkawy.m.d@gmail.com.ORCID http://orcid.org/0009-0008-3804-315X
Azzam ZrinehFaculty of Medicine, Al-Quds University, Jerusalem, Palestine.
Areen AmlehFaculty of Medicine, Al-Quds University, Jerusalem, Palestine.
Bashar DoudenFaculty of Medicine, Al-Quds University, Jerusalem, Palestine.
Mays AlhouseiniFaculty of Medicine, Al-Quds University, Jerusalem, Palestine.
Layla AlsaeedFaculty of Medicine, Al-Quds University, Jerusalem, Palestine.
Mohamed EldesoukiDepartment of Internal Medicine New York Medical College at St Saint's Michael Center, Newark, NJ, USA.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundAnxiety and depression are major global health concerns that can manifest as primary disorders or as comorbid symptoms alongside other medical conditions. Due to the troubling side effects and treatment resistance associated with conventional pharmacological interventions, therapeutic agents that target oxidative stress and inflammation, such as CoQ10, have been considered.

objectiveTo quantitatively evaluate the effect of CoQ10 on symptoms of depression and anxiety across different clinical populations.

methodsWe followed the Preferred Reporting Items for Systematic Reviews and Meta-Analyses guidelines and comprehensively searched relevant databases up to March 2025. The primary outcomes were depression and anxiety symptoms measured by different validated scales. We estimated pooled effect estimates using standardized mean differences (SMDs) and applying random-effects models.

resultsWe identified seven small trials with up to 400 patients meeting the eligibility criteria, of which six studies were included in the meta-analysis. CoQ10 demonstrated significant improvement in depression severity compared to placebo in trials using the Montgomery-Åsberg Depression Rating Scale (MADRS) 6-8 weeks after treatment initiation (3 trials, 158 patients, std. mean difference [95% CI] -0.97 [-1.49, -0.45]), and at low daily doses (3 trials, 193 patients, -0.84 [-1.54, -0.14]). No significant effects were observed in trials using the Beck Depression Inventory (BDI) (3 trials, 146 patients, -0.12 [-0.68, 0.43]). Regarding anxiety severity, only two small studies were analyzed, and no statistically significant reduction was observed with CoQ10 (101 patients, -0.28 [-0.70, 0.13]).

conclusionOur analysis provided limited evidence that CoQ10 may improve depressive symptoms when administered in low doses (100-200 mg/day) and for short durations (6-8 weeks). More data is needed for a reliable assessment of the effects of Coenzyme Q10 on both depression and anxiety.

Indexed as

AnxietyDepressionUbiquinoneDietary SupplementsHumansRandomized Controlled Trials as Topiccoenzyme Q10UbiquinoneAnxietyCoenzyme Q10CoQ10Depression

Identifiers

What Socratic holds

Textmetadata
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Registered trials

None linked

Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.