ArticleHuman brain mapping2023
Changes in white matter microstructure following serial ketamine infusions in treatment resistant depression.
Article in Human brain mapping, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 13 papers.
What it found
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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.
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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.
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Who cites it
13 citing papers in PubMed, 21 citations in OpenAlex.
- Neuroplastic white matter changes in patients with major depression following lysergic acid diethylamide treatment.Cell reports. Medicine · 2026Trial
- Rapid neuroplasticity changes and response to intravenous ketamine: a randomized controlled trial in treatment-resistant depression.Translational psychiatry · 2023Trial
- Gray and White matter microstructural alterations in major depressive disorder: a multi-center diffusion imaging study.Translational psychiatry · 2026Article
- Mesoscale brain-wide fluctuation analysis: revealing ketamine's rapid antidepressant across multiple brain regions.Translational psychiatry · 2025Article
- Potential molecular pathways and therapeutic implications of rapid-acting antidepressants on myelin biology: a scoping review.Frontiers in neuroscience · 2025Review
- Myelin Repair as a Novel Mechanism for Ketamine's Sustained Antidepressant Effects.Current neuropharmacology · 2025Review
- Modulation of functional network co-activation pattern dynamics following ketamine treatment in major depression.Imaging neuroscience (Cambridge, Mass.) · 2025Article
- A review of diffusion MRI in mood disorders: mechanisms and predictors of treatment response.Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2024Review
- Modulation of habenular and nucleus accumbens functional connectivity by ketamine in major depression.Brain and behavior · 2024Article
- Effect of Xiaoyaosan on brain volume and microstructure diffusion changes to exert antidepressant-like effects in mice with chronic social defeat stress.Frontiers in psychiatry · 2024Article
- Changes in white matter microstructure following serial ketamine infusions in treatment resistant depression.Human brain mapping · 2023Article
- White matter microstructural perturbations after total sleep deprivation in depression.Frontiers in psychiatry · 2023Article
- Hippocampal subfield volumes in treatment resistant depression and serial ketamine treatment.Frontiers in psychiatry · 2023Article
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
8 authors at 1 institution in 1 country.
Funding
Abstract
Ketamine produces fast-acting antidepressant effects in treatment resistant depression (TRD). Though prior studies report ketamine-related changes in brain activity in TRD, understanding of ketamine's effect on white matter (WM) microstructure remains limited. We thus sought to examine WM neuroplasticity and associated clinical improvements following serial ketamine infusion (SKI) in TRD. TRD patients (N = 57, 49.12% female, mean age: 39.9) received four intravenous ketamine infusions (0.5 mg/kg) 2-3 days apart. Diffusion-weighted scans and clinical assessments (Hamilton Depression Rating Scale [HDRS-17]; Snaith Hamilton Pleasure Scale [SHAPS]) were collected at baseline and 24-h after SKI. WM measures including the neurite density index (NDI) and orientation dispersion index (ODI) from the neurite orientation dispersion and density imaging (NODDI) model, and fractional anisotropy (FA) from the diffusion tensor model were compared voxelwise pre- to post-SKI after using Tract-Based Spatial Statistics workflows to align WM tracts across subjects/time. Correlations between change in WM metrics and clinical measures were subsequently assessed. Following SKI, patients showed significant improvements in HDRS-17 (p-value = 1.8 E-17) and SHAPS (p-value = 1.97 E-10). NDI significantly decreased in occipitotemporal WM pathways (p < .05, FWER/TFCE corrected). ΔSHAPS significantly correlated with ΔNDI in the left internal capsule and left superior longitudinal fasciculus (r = -0.614, p-value = 6.24E-09). No significant changes in ODI or FA were observed. SKI leads to significant changes in the microstructural features of neurites within occipitotemporal tracts, and changes in neurite density within tracts connecting the basal ganglia, thalamus, and cortex relate to improvements in anhedonia. NODDI may be more sensitive for detecting ketamine-induced WM changes than DTI.
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Registered trials
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 Socratic graph.