We found that demyelinated axons formed functional glutamatergic synapses onto adult-born NG2(+) oligodendrocyte progenitor cells (OPCs) migrating from the subventricular zone after focal demyelination of adult mice corpus callosum. This glutamatergic input was substantially reduced compared with endogenous callosal OPCs 1 week after lesion and was lost on differentiation into oligodendrocytes. Therefore, axon-oligodendrocyte progenitor synapse formation is a transient and regulated step that occurs during remyelination of callosal axons.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC4681435 | PMC |
| http://dx.doi.org/10.1038/nn.2500 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Daily executive functioning in adults with pediatric hemispherectomy.
Epilepsy Res
January 2025
Fuller Graduate School of Psychology, Travis Research Institute, Pasadena, CA 91101, United States; International Research Consortium for the Corpus Callosum and Cerebral Connectivity (IRC5), Pasadena, CA 91106, United States; California Institute of Technology, Division of Humanities and Social Sciences, Pasadena, CA 91125, United States. Electronic address:
Background And Aims: For young children with intractable epilepsy caused by congenital abnormalities or acquired cortical lesions, pediatric hemispherectomy surgery (pHS) may offer the only path to seizure remediation. Although some sensory and motor outcomes of pHS are highly predictable, the long-term cognitive and functional sequelae of pHS are far more variable. With the aim of identifying potential post-pHS intervention targets, the current study examined daily executive functioning and self-awareness in adults with pHS and broadly intact cognitive outcomes (indicated by average or above performance on intelligence tests).
View Article and Find Full Text PDFImproved deep canonical correlation fusion approach for detection of early mild cognitive impairment.
Med Biol Eng Comput
January 2025
Non-Invasive Imaging and Diagnostic Laboratory, Department of Applied Mechanics and Biomedical Engineering, Indian Institute of Technology Madras, Chennai, India.
Detection of early mild cognitive impairment (EMCI) is clinically challenging as it involves subtle alterations in multiple brain sub-anatomic regions. Among different brain regions, the corpus callosum and lateral ventricles are primarily affected due to EMCI. In this study, an improved deep canonical correlation analysis (CCA) based framework is proposed to fuse magnetic resonance (MR) image features from lateral ventricular and corpus callosal structures for the detection of EMCI condition.
View Article and Find Full Text PDFTissue Is the Issue: The Diagnosis of Butterfly Brain Lesions.
Cureus
December 2024
Neurology, Palmetto General Hospital, Hialeah, USA.
The corpus callosum can reveal a "butterfly" pattern on imaging in various conditions, including glioblastoma, primary central nervous system lymphoma, tumefactive multiple sclerosis, and toxoplasmosis. Early differentiation among these conditions is crucial to avoid aggressive treatments. In one case, a 70-year-old woman with a history of multiple sclerosis experienced a neurological decline.
View Article and Find Full Text PDFGM2 gangliosidosis is lysosomal storage disorder caused by deficiency of the heterodimeric enzyme β-hexosaminidase A. Tay-Sachs disease is caused by variants in encoding the α-subunit and Sandhoff disease is caused by variants in encoding the β-subunit. Due to shared clinical and biochemical findings, the two have been considered indistinguishable.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!