ArticleNeuropsychopharmacology : official publication of the American College of Neuropsychopharmacology2023
Node of Ranvier remodeling in chronic psychosocial stress and anxiety.
Article in Neuropsychopharmacology : official publication of the American College of Neuropsychopharmacology, 2023. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
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Who cites it
4 citing papers in PubMed, 10 citations in OpenAlex.
- Activity of VMS-projecting mPFC neurons encodes individual vulnerability to chronic restraint stress in male mice.Neurobiology of stress · 2026Article
- Bioinformatics Analysis of Persistent Dysregulated Expression of Genes Involved in HCV-Induced Neurological Disorders and Liver Injuries After DAA Treatment Through Weighted Gene Co-Expression Network Analysis.Health science reports · 2025Article
- Paranode length in the prefrontal cortex of subjects with major depression and rats under chronic unpredictable stress.Journal of affective disorders · 2025Article
- Spatial Heterogeneity in Myelin Sheathing Impacts Signaling Reliability and Susceptibility to Injury.eNeuro · 2025Article
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Authors and funding
12 authors at 2 institutions in 1 country.
Funding
No grant is acknowledged in the PubMed record.
Abstract
Differential expression of myelin-related genes and changes in myelin thickness have been demonstrated in mice after chronic psychosocial stress, a risk factor for anxiety disorders. To determine whether and how stress affects structural remodeling of nodes of Ranvier, another form of myelin plasticity, we developed a 3D reconstruction analysis of node morphology in C57BL/6NCrl and DBA/2NCrl mice. We identified strain-dependent effects of chronic social defeat stress on node morphology in the medial prefrontal cortex (mPFC) gray matter, including shortening of paranodes in C57BL/6NCrl stress-resilient and shortening of node gaps in DBA/2NCrl stress-susceptible mice compared to controls. Neuronal activity has been associated with changes in myelin thickness. To investigate whether neuronal activation is a mechanism influencing also node of Ranvier morphology, we used DREADDs to repeatedly activate the ventral hippocampus-to-mPFC pathway. We found reduced anxiety-like behavior and shortened paranodes specifically in stimulated, but not in the nearby non-stimulated axons. Altogether, our data demonstrate (1) nodal remodeling of the mPFC gray matter axons after chronic stress and (2) axon-specific regulation of paranodes in response to repeated neuronal activity in an anxiety-associated pathway. Nodal remodeling may thus contribute to aberrant circuit function associated with anxiety disorders.
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