Gliomas involving the brain stem represent 10% of pediatric central nervous system neoplasms. They result in multiple cranial nerve involvement, long tracts signs, cerebellar signs, usually with no evidence of raising in intracranial pressure. The diagnosis is established by computed tomographic scan and magnetic resonance imaging. Classic management consists in conventional radiation therapy but the prognosis is very dismal with a five year survival rate about 30%.
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Front Neural Circuits
January 2025
Department of Advanced Medical and Surgical Sciences, Advanced MRI Research Center, University of Campania "Luigi Vanvitelli", Naples, Italy.
The substantia nigra pars compacta (SNc), one of the main dopaminergic nuclei of the brain, exerts a regulatory function on the basal ganglia circuitry via the nigro-striatal pathway but its possible dopaminergic innervation of the thalamus has been only investigated in non-human primates. The impossibility of tract-tracing studies in humans has boosted advanced MRI techniques and multi-shell high-angular resolution diffusion MRI (MS-HARDI) has promised to shed more light on the structural connectivity of subcortical structures. Here, we estimated the possible dopaminergic innervation of the human thalamus via an MS-HARDI tractography of the SNc in healthy human young adults.
View Article and Find Full Text PDFFront Neurol
January 2025
Department of Orthopaedics, China-Japan Union Hospital of Jilin University, Changchun, China.
Retinal ganglion cells (RGCs) generally fail to regenerate axons, resulting in irreversible vision loss after optic nerve injury. While many studies have shown that modulating specific genes can enhance RGCs survival and promote optic nerve regeneration, inducing long-distance axon regeneration through single-gene manipulation remains challenging. Nevertheless, combined multi-gene therapies have proven effective in significantly enhancing axonal regeneration.
View Article and Find Full Text PDFBrain Spine
December 2024
Department of Neurosurgery, Gui de Chauliac Hospital, Montpellier University Medical Center, Montpellier, France.
•Defining the concept of "onco-functional" balance.•Detailing the clinical implications in brain tumor surgery.•Discussing the future of this philosophy.
View Article and Find Full Text PDFAm J Stem Cells
December 2024
Razi Herbal Medicines Research Center, Lorestan University of Medical Sciences Khorramabad, Iran.
Development and maintenance of the nervous system are governed by a scheduled cell death mechanism known as apoptosis. Very much how neurons survive and function depends on the degree of death in differentiating pseudo-neuronal cells produced from neural stem cells. Different inducers can affect the degree of death in these cells: hormones, medicines, growth factors, and others.
View Article and Find Full Text PDFG3 (Bethesda)
January 2025
Department of Cell and Systems Biology, University of Toronto, Toronto, Ontario, M5S3G5, Canada.
Sex-determining region Y box 2 (Sox2) is a critical transcription factor for embryogenesis and neural stem and progenitor cell (NSPC) maintenance. While distal enhancers control Sox2 in embryonic stem cells (ESCs), enhancers closer to the gene are implicated in Sox2 transcriptional regulation in neural development. We hypothesize that a downstream enhancer cluster, termed Sox2 regulatory regions 2-18 (SRR2-18), regulates Sox2 transcription in neural stem cells and we investigate this in NSPCs derived from mouse ESCs.
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