Forskning
Udskriv Udskriv
Switch language
Region Hovedstaden - en del af Københavns Universitetshospital
Udgivet

Volume of hippocampal subregions and clinical improvement following electroconvulsive therapy in patients with depression

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

DOI

  1. Det Danske ECT/MRI projekt

    Projekt: Typer af projekterProjekt

  1. Affective disorders impact prevalence of Flavonifractor and abundance of Christensenellaceae in gut microbiota

    Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

  2. Differential expression of synaptic markers regulated during neurodevelopment in a rat model of schizophrenia-like behavior

    Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

  3. Imaging genetics paradigms in depression research: Systematic review and meta-analysis

    Publikation: Bidrag til tidsskriftReviewpeer review

  1. Automatic continuous EEG signal analysis for diagnosis of delirium in patients with sepsis

    Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

  2. Investigation of cortical thickness and volume during spontaneous attacks of migraine without aura: a 3-Tesla MRI study

    Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

  3. Genetic association study of childhood aggression across raters, instruments, and age

    Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Vis graf over relationer

It is thought that the hippocampal neurogenesis is an important mediator of the antidepressant effect of electroconvulsive therapy (ECT). However, most previous studies failed to demonstrate the relationship between the increase in the hippocampal volume and the antidepressant effect. We reinvestigated this relationship by looking at distinct hippocampal subregions and applying repeated measures correlation. Using a 3 Tesla MRI-scanner, we scanned 22 severely depressed in-patients at three time points: before the ECT series, after the series, and at six-month follow-up. The depression severity was assessed by the 17-item Hamilton Rating Scale for Depression (HAMD-17). The hippocampus was segmented into subregions using Freesurfer software. The dentate gyrus (DG) was the primary region of interest (ROI), due to the role of this region in neurogenesis. The other major hippocampal subregions were the secondary ROIs (n = 20). The general linear mixed model and the repeated measures correlation were used for statistical analyses. Immediately after the ECT series, a significant volume increase was present in the right DG (Cohen's d = 1.7) and the left DG (Cohen's d = 1.5), as well as 15 out of 20 secondary ROIs. The clinical improvement, i.e., the decrease in HAMD-17 score, was correlated to the increase in the right DG volume (r rm = −0.77, df = 20, p <.001), and the left DG volume (r rm = −0.75, df = 20, p <.001). Similar correlations were observed in 14 out of 20 secondary ROIs. Thus, ECT induces an increase not only in the volume of the DG, but also in the volume of other major hippocampal subregions. The volumetric increases may reflect a neurobiological process that may be related to the ECT's antidepressant effect. Further investigation of the relationship between hippocampal subregions and the antidepressant effect is warranted. A statistical approach taking the repeated measurements into account should be preferred in the analyses.

OriginalsprogEngelsk
TidsskriftProgress in neuro-psychopharmacology & biological psychiatry
Vol/bind104
Sider (fra-til)110048
ISSN0278-5846
DOI
StatusUdgivet - 10 jan. 2021

Bibliografisk note

Copyright © 2020 Elsevier Inc. All rights reserved.

ID: 60733145