Evidence map›Paper›PMID 41469528›Full record

ArticleTranslational psychiatry2025

Relationship between hippocampal volume and treatment response before and after escitalopram administration in patients with depression.

Toshiharu Kamishikiryo, Eri Itai, Yuki Mitsuyama, Yoshikazu Masuda, Osamu Yamamoto, Tatsuji Tamura, Hiroaki Jitsuiki, Akio Mantani, Norio Yokota, Go Okada

Abstract read
In one paragraph

Article in Translational psychiatry, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.

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

1 citing paper in PubMed.

  1. 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

10 authors.

Toshiharu KamishikiryoDepartment of Psychiatry and Neurosciences, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan.ORCID http://orcid.org/0000-0002-4933-0161
Eri ItaiDepartment of Psychiatry and Neurosciences, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan.
Yuki MitsuyamaDepartment of Psychiatry and Neurosciences, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan.
Yoshikazu MasudaDepartment of Psychiatry and Neurosciences, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan.
Osamu YamamotoUjina Mental Clinic, Hiroshima, Japan.
Tatsuji TamuraTamura Mental Clinic, Hiroshima, Japan.
Hiroaki JitsuikiJitsuiki Clinic, Hiroshima, Japan.
Akio MantaniMantani Mental Clinic, Hiroshima, Japan.
Norio YokotaYokota Mental Clinic, Hiroshima, Japan.
Go OkadaDepartment of Psychiatry and Neurosciences, Graduate School of Biomedical and Health Sciences, Hiroshima University, Hiroshima, Japan. goookada@hiroshima-u.ac.jp.ORCID http://orcid.org/0000-0002-5451-8513

Funding

Japan Agency for Medical Research and Development (AMED) JP24wm0625204
6 · The paper itself

Abstract

The hippocampus plays a crucial role in memory formation and emotional regulation, and is closely related to the pathology of depression. Escitalopram, a selective serotonin reuptake inhibitor, promotes neurogenesis in the dentate gyrus of the hippocampus and alters its structure. This study examined the relationship between these escitalopram-induced structural changes and treatment response in 107 patients with moderate to severe depression, of whom 56 were female (52.3%), with a mean age of 41.5 years (range: 25-73 years). Follow-up data were available for 71 patients (66.4%). Changes in the volume and laterality of hippocampal subregions were compared before and after escitalopram treatment between Responders to escitalopram (n = 53) and Nonresponders (n = 54). The results indicated that Responders had a larger left hippocampal volume (β = 189.3, 95% CI [71.4, 307.2], Cohen's f² ≈ 0.094) and greater leftward laterality (β = 0.012, 95% CI [2.2 × 10⁻⁴, 0.024], Cohen's f² ≈ 0.04) than Nonresponders at baseline. Additionally, the right hippocampus and right hippocampal head exhibited increased volume (β = 80.6, 95% CI [28.5, 132.8], Cohen's f² ≈ 0.005; β = 50.4, 95% CI [22.2, 78.5], Cohen's f² ≈ 0.006) and altered laterality (β = -0.011, 95% CI [-0.022, -4.1 × 10⁻⁴], Cohen's f² ≈ 0.003; β = -3.3 × 10⁻⁴, 95% CI [-5.7 × 10⁻⁴, -8.3 × 10⁻⁵], Cohen's f² ≈ 0.006) in response to escitalopram in Responders compared to Nonresponders. Furthermore, the volume changes in the right hippocampus and right hippocampal head correlated with core depressive symptoms. It is suggested that these volume changes play an important role in the improvement of core symptoms of depression by escitalopram treatment. These findings can help to reveal the mechanisms of action of selective serotonin reuptake inhibitors and have the potential to facilitate the early identification of patients who will respond to treatment.

Indexed as

CitalopramDepressive DisorderEscitalopramHippocampusMajor Depressive DisorderSelective Serotonin Reuptake InhibitorsAdultAgedFemaleFunctional LateralityHumansMagnetic Resonance ImagingMaleMiddle AgedOrgan SizeTreatment OutcomeCitalopramEscitalopramSelective Serotonin Reuptake Inhibitors

Identifiers

PMID41469528
PMCPMC12783789

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.