Evidence map›Paper›PMID 19705104›Full record

Trial reportPsychopharmacology2009

Effects of erythropoietin on emotional processing biases in patients with major depression: an exploratory fMRI study.

Kamilla W Miskowiak, Elisa Favaron, Sepehr Hafizi, Becky Inkster, Guy M Goodwin, Philip J Cowen, Catherine J Harmer

Abstract readRandomized Controlled Trial
PubMed Publisher
In one paragraph

Trial report in Psychopharmacology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 30 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
30citing papers in PubMed, 2 pooled it
3.4field-weighted citation impact, top 8% 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

30 citing papers in PubMed, 2 syntheses or guidelines pooled it, 55 citations in OpenAlex.

  1. Guideline
  2. Citalopram versus other anti-depressive agents for depression.The Cochrane database of systematic reviews · 2012
    Pooled it
  3. Trial
  4. Trial
  5. Trial
  6. Article
  7. Article
  8. Article
  9. Behavioral Activation and Brain Network Changes in Depression.Journal of clinical neurology (Seoul, Korea) · 2024
    Review
  10. Article
  11. Article
  12. Review
  13. Article
  14. Article
  15. Review
  16. Erythropoietin Pathway: A Potential Target for the Treatment of Depression.International journal of molecular sciences · 2016
    Review
  17. A neurocognitive model for understanding treatment action in depression.Philosophical transactions of the Royal Society of London. Series B, Biological sciences · 2015
    Review
  18. Article
  19. Article
  20. Neuroplasticity and the next wave of antidepressant strategies.Frontiers in cellular neuroscience · 2013
    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

7 authors at 3 institutions in 2 countries.

Kamilla W MiskowiakDepartment of Psychiatry, University Hospital of Copenhagen, Rigshospitalet, Copenhagen, Denmark. kamilla@miskowiak.dk
Elisa Favaron
Sepehr Hafizi
Becky Inkster
Guy M Goodwin
Philip J Cowen
Catherine J Harmer
University of Oxford · GBImperial College London · GBRigshospitalet · DK

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

introductionErythropoietin (Epo) has neurotrophic effects and may be a novel therapeutic agent in the treatment of depression. We have found antidepressant-like effects of Epo on emotional processing and mood in healthy volunteers.

objectiveThe current study aimed to explore the effects of Epo on the neural processing of emotional information in depressed patients. MATERIALS AND

methodsSeventeen patients with acute major depressive disorder were randomised to receive Epo (40,000 IU) or saline iv in a double-blind, parallel-group design. On day 3, we assessed neural responses to positive, negative and neutral pictures during fMRI followed by picture recall after the scan. Mood and blood parameters were assessed at baseline and on day 3.

resultsEpo reduced neural response to negative vs. positive pictures 3 days post-administration in a network of areas including the hippocampus, ventromedial prefrontal and parietal cortex. After the scan, Epo-treated patients showed improved memory compared with those that were given placebo. The effects occurred in the absence of changes in mood or haematological parameters, suggesting that they originated from direct neurobiological actions of Epo.

conclusionsThese findings are similar to the effects of conventional antidepressants and opposite to the negative biases in depression. The central effects of Epo therefore deserve further investigation as a potential antidepressant mechanism.

Indexed as

BiasBrainAdultAntidepressive AgentsBrain MappingDouble-Blind MethodEmotionsErythropoietinFacial ExpressionFemaleHumansImage Processing, Computer-AssistedMagnetic Resonance ImagingMajor Depressive DisorderMaleMiddle AgedAntidepressive AgentsErythropoietinOxygen

Identifiers

PMID19705104
OpenAlexW2049657588

What OpenQuestion holds

Textmetadata
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.