Evidence map›Paper›PMID 29897029›Full record

ArticleBJPsych open2018

Magnesium and mood disorders: systematic review and meta-analysis.

Danny Phelan, Patricio Molero, Miguel A Martínez-González, Marc Molendijk

Open access · goldAbstract read
In one paragraph

Article in BJPsych open, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers, 3 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
13citing papers in PubMed, 3 pooled it
2.4field-weighted citation impact, top 12% 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

13 citing papers in PubMed, 3 syntheses or guidelines pooled it, 36 citations in OpenAlex.

  1. Pooled it
  2. Pooled it
  3. Pooled it
  4. Article
  5. Article
  6. [Procedures of complementary medicine in rheumatology].Zeitschrift fur Rheumatologie · 2024
    Review
  7. Article
  8. Magnesium (MgCurrent pharmaceutical design · 2024
    Review
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  10. Article
  11. Review
  12. Article
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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 2 countries.

Danny PhelanInstitute of Psychology,Clinical Psychology Unit,Leiden University,Leiden,The Netherlands.
Patricio MoleroDepartment of Psychiatry and Medical Psychology,University Hospital,School of Medicine,University of Navarra,Pamplona,Navarra,Spain.
Miguel A Martínez-GonzálezDepartment of Preventive Medicine and Public Health,School of Medicine,University of Navarra,Pamplona,Navarra,Spain,CIBER-OBN, Instituto de Salud Carlos III,Madrid,Spain, andDepartment of Nutrition,Harvard TH Chan School of Public Health,Boston,USA.
Marc MolendijkInstitute of Psychology,Clinical Psychology Unit,Leiden University,Leiden,The Netherlands, andLeiden Institute for Brain and Cognition,Leiden University Medical Center,Leiden,The Netherlands.
Leiden University · NLUniversidad de Navarra · ES

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundMagnesium (Mg2+) has received considerable attention with regards to its potential role in the pathophysiology of the mood disorders, but the available evidence seems inconclusive.AimsTo review and quantitatively summarise the human literature on Mg2+ intake and Mg2+ blood levels in the mood disorders and the effects of Mg2+ supplements on mood.

methodSystematic review and meta-analyses.

resultsAdherence to a Mg2+-rich diet was negatively associated with depression in cross-sectional (odds ratio = 0.66) but not in prospective studies. Mg2+ levels in bodily fluids were on average higher in patients with a mood disorder (Hedge's g = 0.19), but only in patients treated with antidepressants and/or mood stabilisers. There was no evident association between Mg2+ levels and symptom severity. Mg2+ supplementation was associated with a decline in depressive symptoms in uncontrolled (g = -1.60) but not in placebo-controlled trials (g = -0.21).

conclusionOur results provide little evidence for the involvement of Mg2+ in the mood disorders.Declaration of interestNone.

Indexed as

bipolar disorderdepressionMagnesiummeta-analysissystematic review

Identifiers

PMID29897029
PMCPMC6034436
OpenAlexW2807878917

What OpenQuestion holds

Textmetadata
LicenceCC BY-NC-SA
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 OpenQuestion graph.