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Neurotransmitter Receptor Influence on Behavior · Journal article
Molecular Psychiatry · September 8, 2026
Raises a question worth testing. It does not answer one.
This is a mechanistic exploratory study in mice combining chronic social defeat stress, behavioural phenotyping, and single-cell RNA sequencing to map transcriptional perturbations across habenular cell types. The work identifies cell-type and subregion-specific signatures associated with distinct depressive-like phenotypes, but is descriptive and preclinical; it does not establish causation, test an intervention, or provide evidence applicable to human depression treatment or diagnosis.
Exploratory cross-sectional study combining chronic stress exposure, behavioural phenotyping, and single-cell RNA sequencing in mice. Adult mice stratified by behavioural response to chronic social defeat stress.. Intervention: Chronic social defeat stress (CSDS). Compared with: Resilient and susceptible phenotypes within stressed cohort; implicit comparison to baseline (control) state.
Nine major habenular cell classes identified across stressed and control mice Distinct transcriptional signatures observed in lateral habenula neurons of susceptible animals and in oligodendrocytes of resilient animals Oval-medial lateral habenula accounted for most stress-related transcriptional changes
Safety was not reported in the material analysed. Check the source before drawing any conclusion about harm.
This work maps cellular and molecular heterogeneity in a stress-sensitive brain region and may guide discovery of targets for precision psychiatry; however, it does not yet support changes to clinical practice or diagnostic/therapeutic approaches in human depression.
Single-species mechanistic study using transcriptomics to explore molecular correlates of depressive-like phenotypes in mice; raises questions about habenular cell involvement but does not test a clinical intervention or establish causation in humans.
As stated by the source record.
Quoted from the source exactly as published.
This work maps cellular and molecular heterogeneity in a stress-sensitive brain region and may guide discovery of targets for precision psychiatry; however, it does not yet support changes to clinical practice or diagnostic/therapeutic approaches in human depression.
Graded across the dimensions that decide whether you should act, each from what the source actually supports. There is no single score, and where a dimension was not assessed it says so.
Major depressive disorder (MDD) is characterized by substantial heterogeneity, which hinders attempts to associate distinct symptoms with specific neural mechanisms. The lateral habenula (LHb) is a key brain region involved in negative affect and reward processing, but the molecular changes in the LHb that lead to mood disorders remain unclear. Here, we combined chronic social defeat stress (CSDS), behavioural phenotyping, and single-cell RNA sequencing to examine cell-type and subregion-specific transcriptional changes in the mouse habenula. Mice were classified into behavioural phenotypes reflecting social avoidance, anhedonia, passive coping, resilience, or susceptibility. We identified nine major habenular cell classes and found distinct phenotype-associated transcriptional signatures across both neurons and glia. Distinct transcriptional signatures were observed in LHb neurons of susceptible animals and in oligodendrocytes of resilient animals. Subregional analysis revealed that the oval-medial LHb accounted for most stress-related transcriptional changes, while the HbX subregion displayed a unique molecular signature associated with passive coping behaviour. These findings highlight the cellular heterogeneity of stress responses within the habenula and will pave the way for identifying potential targets for precision psychiatry approaches in depression.
Taken from the source record, never inferred. Follow any of these and new work involving them reaches your briefing.