Evidence map›Paper›PMID 24336428›Full record

SynthesisPsychosomatic medicine2014

Depression and oxidative stress: results from a meta-analysis of observational studies.

Priya Palta, Laura J Samuel, Edgar R Miller, Sarah L Szanton

Open access · greenAbstract readMeta-AnalysisSystematic Review
In one paragraph

Synthesis in Psychosomatic medicine, 2014. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 133 papers, 7 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
133citing papers in PubMed, 7 pooled it
4.1field-weighted citation impact, top 5% of its field
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

133 citing papers in PubMed, 7 syntheses or guidelines pooled it, 273 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Pooled it
  5. Pooled it
  6. Pooled it
  7. Pooled it
  8. Trial
  9. Trial
  10. Neurobehavioral Effects of Consuming Dietary Fatty Acids.Biological research for nursing · 2016
    Trial
  11. Trial
  12. Review
  13. Article
  14. Article
  15. Article
  16. Article
  17. Article
  18. Review
  19. Article
  20. Review

73 more citing papers are in PubMed but not listed here.

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

4 authors at 2 institutions in 1 country.

Priya PaltaMHS, University of North Carolina at Chapel Hill, 137 E. Franklin Street, Suite 306, Chapel Hill, NC 27514. priya_palta@unc.edu.
Laura J Samuel
Edgar R Miller
Sarah L Szanton
Johns Hopkins University · USUniversity of North Carolina at Chapel Hill · US

Funding

EPIDEMIOLOGY AND BIOSTATISTICS OF AGINGT32AG000247 · NIA · JOHNS HOPKINS UNIVERSITY · PI Karen J. Bandeen-Roche · 1996 to 2026
$13.2M
Clinical Research&Epidemiology in Diabetes&EndocrinologyT32DK062707 · NIDDK · JOHNS HOPKINS UNIVERSITY · PI TODD T BROWN, Wendy Lynet Bennett · 2002 to 2026
$7.3M
The role of social factors in cardiovascular risk behaviors disparitiesF31NR012087 · NINR · JOHNS HOPKINS UNIVERSITY · PI SAMUEL, LAURA · 2010 to 2012
$120k
NIA NIH HHS T32 AG000247NIDDK NIH HHS T32 DK062707NINR NIH HHS F31 NR012087
6 · The paper itself

Abstract

objectiveTo perform a systematic review and meta-analysis that quantitatively tests and summarizes the hypothesis that depression results in elevated oxidative stress and lower antioxidant levels.

methodsWe performed a meta-analysis of studies that reported an association between depression and oxidative stress and/or antioxidant status markers. PubMed and EMBASE databases were searched for articles published from January 1980 through December 2012. A random-effects model, weighted by inverse variance, was performed to pool standard deviation (Cohen's d) effect size estimates across studies for oxidative stress and antioxidant status measures, separately.

resultsTwenty-three studies with 4980 participants were included in the meta-analysis. Depression was most commonly measured using the Diagnostic and Statistical Manual of Mental Disorders, Fourth Edition criteria. A Cohen's d effect size of 0.55 (95% confidence interval = 0.47-0.63) was found for the association between depression and oxidative stress, indicating a roughly 0.55 of 1-standard-deviation increase in oxidative stress among individuals with depression compared with those without depression. The results of the studies displayed significant heterogeneity (I(2) = 80.0%, p < .001). A statistically significant effect was also observed for the association between depression and antioxidant status markers (Cohen's d = -0.24, 95% confidence interval = -0.33 to -0.15).

conclusionsThis meta-analysis observed an association between depression and oxidative stress and antioxidant status across many different studies. Differences in measures of depression and markers of oxidative stress and antioxidant status markers could account for the observed heterogeneity. These findings suggest that well-established associations between depression and poor heath outcomes may be mediated by high oxidative stress.

Indexed as

Observational Studies as TopicDepressionHumansOxidative Stressdepressionmeta-analysisoxidative stressreview

Identifiers

PMID24336428
PMCPMC4290164
OpenAlexW1977886842

What Socratic holds

Textmetadata
LicenceTDM
Read underepoch 390

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.