Evidence map›Paper›PMID 25757673›Full record

ArticlePsychopharmacology2015

Effect of extended-release naltrexone on striatal dopamine transporter availability, depression and anhedonia in heroin-dependent patients.

Eline R Zaaijer, Lonneke van Dijk, Kora de Bruin, Anna E Goudriaan, Laureen A Lammers, Maarten W J Koeter, Wim van den Brink, Jan Booij

Open access · hybridAbstract read
In one paragraph

Article in Psychopharmacology, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 21 papers, 2 of them syntheses that pooled it.

0numbers the graph read from it
0cells of the map it votes in
21citing papers in PubMed, 2 pooled it
1.5field-weighted citation impact, top 20% 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

21 citing papers in PubMed, 2 syntheses or guidelines pooled it, 40 citations in OpenAlex.

  1. Pooled it
  2. Effects of sedative drug use on the dopamine system: a systematic review and meta-analysis of in vivo neuroimaging studies.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2019
    Pooled it
  3. Trial
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  6. Article
  7. Review
  8. Frontiers in pharmacology · 2024
    Review
  9. Review
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  11. Article
  12. Article
  13. Article
  14. Article
  15. Review
  16. Anhedonia as a key clinical feature in the maintenance and treatment of opioid use disorder.Clinical psychological science : a journal of the Association for Psychological Science · 2019
    Article
  17. Review
  18. Review
  19. Clinical evaluation of [EJNMMI research · 2018
    Article
  20. 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 at 3 institutions in 1 country.

Eline R ZaaijerAmsterdam Institute for Addiction Research, Department of Psychiatry, Academic Medical Center, University of Amsterdam, PO Box 22660, 1100 DD, Amsterdam, The Netherlands, ezaaijer@gmail.com.
Lonneke van Dijk
Kora de Bruin
Anna E Goudriaan
Laureen A Lammers
Maarten W J Koeter
Wim van den Brink
Jan Booij
University of Amsterdam · NLAcademic Medical Center · NLAmsterdam Institute for Addiction Research · NL

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

rationaleExtended-release naltrexone (XRNT), an opioid receptor antagonist, is successfully used in the treatment of opioid dependence. However, naltrexone treatment of opioid-dependent patients may reduce striatal dopamine transporter (DAT) availability and cause depression and anhedonia.

objectivesThe aim of this study is to investigate changes in striatal DAT availability and symptoms of depression (Beck Depression Inventory (BDI)) and anhedonia (Snaith Hamilton Pleasure Scale (SHAPS)) before and during XRNT treatment.

methodsAt baseline, ten detoxified heroin-dependent patients and 11 matched healthy controls underwent [(123)I]FP-CIT single photon emission computed tomography (SPECT) imaging to assess striatal DAT binding. Patients underwent a second SPECT scan 2 weeks after an intramuscular injection with XRNT.

resultsAt baseline, the mean binding potential (BPND) in the putamen was at a trend level lower and the mean BDI score was significantly higher in heroin patients (n = 10) than in controls (n = 11) (3.45 ± 0.88 vs. 3.80 ± 0.61, p = 0.067, d = -0.48 and 12.75 ± 7.40 vs. 5.20 ± 4.83, p = 0.019, d = 1.24, respectively). Post hoc analyses in subgroups with negative urine analyses for opioids and cocaine showed significantly lower baseline putamen BPND in heroin patients (n = 8) than controls (n = 10) (3.19 ± 0.43 vs. 3.80 ± 0.64, p = 0.049, d = -1.03). XRNT treatment in heroin patients was not significantly associated with changes in striatal DAT availability (p = 0.348, d = 0.48), but the mean BDI score after XRNT treatment was significantly lower than before treatment (7.75 ± 7.21 vs. 12.75 ± 7.40, p = 0.004, d = -0.68).

conclusionsThe results of this study suggest that XRNT treatment does not reduce striatal DAT availability and has no significant effect on anhedonia, but is associated with a significant reduction of depressive symptoms.

Indexed as

AnhedoniaAdultCorpus StriatumDelayed-Action PreparationsDepressionDiagnostic and Statistical Manual of Mental DisordersDopamine Plasma Membrane Transport ProteinsFemaleHeroin DependenceHumansMaleMiddle AgedNaltrexoneNarcotic AntagonistsNeuropsychological TestsPositron-Emission Tomography2-carbomethoxy-8-(3-fluoropropyl)-3-(4-iodophenyl)tropaneDelayed-Action PreparationsDopamine Plasma Membrane Transport ProteinsNaltrexoneNarcotic AntagonistsRadiopharmaceuticalsTropanes

Identifiers

PMID25757673
PMCPMC4480848
OpenAlexW2071843436

What OpenQuestion holds

Textmetadata
LicenceCC BY
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.