Evidence map›Paper›PMID 29025075›Full record

ArticleThe international journal of neuropsychopharmacology2018

Possible Association between Serum Matrix Metalloproteinase-9 (MMP-9) Levels and Relapse in Depressed Patients following Electroconvulsive Therapy (ECT).

Chiyo Shibasaki, Kei Itagaki, Hiromi Abe, Naoto Kajitani, Mami Okada-Tsuchioka, Minoru Takebayashi

Abstract read
In one paragraph

Article in The international journal of neuropsychopharmacology, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed, 1 pooled it
–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

10 citing papers in PubMed, 1 synthesis or guideline pooled it.

  1. Pooled it
  2. Changes in Glutathione and Homocysteine Concentrations in Treatment-Resistant Depression After Electroconvulsive Therapy.Medical science monitor : international medical journal of experimental and clinical research · 2026
    Article
  3. Article
  4. Review
  5. Review
  6. Article
  7. Review
  8. Activation of proprotein convertase in the mouse habenula causes depressive-like behaviors through remodeling of extracellular matrix.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2021
    Article
  9. Article
  10. 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

6 authors.

Chiyo ShibasakiDivision of Psychiatry and Neuroscience, Institute for Clinical Research, National Hospital Organization, Kure Medical Center and Chugoku Cancer Center, Kure, Japan.
Kei ItagakiDivision of Psychiatry and Neuroscience, Institute for Clinical Research, National Hospital Organization, Kure Medical Center and Chugoku Cancer Center, Kure, Japan.
Hiromi AbeDivision of Psychiatry and Neuroscience, Institute for Clinical Research, National Hospital Organization, Kure Medical Center and Chugoku Cancer Center, Kure, Japan.
Naoto KajitaniDivision of Psychiatry and Neuroscience, Institute for Clinical Research, National Hospital Organization, Kure Medical Center and Chugoku Cancer Center, Kure, Japan.
Mami Okada-TsuchiokaDivision of Psychiatry and Neuroscience, Institute for Clinical Research, National Hospital Organization, Kure Medical Center and Chugoku Cancer Center, Kure, Japan.
Minoru TakebayashiDivision of Psychiatry and Neuroscience, Institute for Clinical Research, National Hospital Organization, Kure Medical Center and Chugoku Cancer Center, Kure, Japan.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background: Matrix metalloproteinases are involved in neuroinflammatory processes, which could underlie depression. Serum levels of MMP-9 and MMP-2 in depressed patients are significantly altered following electroconvulsive therapy, but an association between altered matrix metalloproteinases after successful ECT and possible relapse has yet to be investigated. Methods: Serum was obtained twice, before and immediately after a course of electroconvulsive therapy, from 38 depressed patients. Serum was also collected, once, from two groups of age- and gender-matched healthy controls, 40 volunteers in each group. Possible associations between levels of matrix metalloproteinases and relapse during a 1-year follow-up period were analyzed. Results: Excluding patients who did not respond to electroconvulsive therapy and patients lost to follow-up, data from 28 patients were evaluated. Eighteen of the patients (64.3%) relapsed within 1 year. In the group that did not relapse, serum levels of MMP-9 were significantly decreased after a course of electroconvulsive therapy, but not in the group that relapsed. No association between MMP-2 and relapse was observed. Conclusion: The degree of change in serum MMP-9 change could be associated with relapse following electroconvulsive therapy in depressed patients.

Indexed as

BiomarkersBipolar DisorderElectroconvulsive TherapyFemaleFollow-Up StudiesHumansMajor Depressive DisorderMaleMatrix Metalloproteinase 2Matrix Metalloproteinase 9Middle AgedRecurrenceTreatment OutcomeBiomarkersMatrix Metalloproteinase 2Matrix Metalloproteinase 9MMP2 protein, humanMMP9 protein, human

Identifiers

PMID29025075
PMCPMC5838816

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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.