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We report a new method for examining changes in membrane permeability in dorsal root ganglion (DRG) cells under peripheral nerve injury conditions. By intravenously injecting YO-PRO-1, a monomeric cyanine nucleic acid stain, into rats with spared nerve injury (SNI), we observed the uptake of YO-PRO-1 in injured neurons and surrounding non-neuronal cells. This approach provides a tool for detecting in vivo DRG cell release activity in intact animals.
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http://dx.doi.org/10.17912/micropub.biology.001619 | DOI Listing |
Biofabrication
September 2025
Institute of Macromolecular Chemistry, Institute of Macromolecular Chemistry Czech Academy of Sciences, Heyrovského nám. 2, 162 06 Prague 6, Prague, Prague, 162 06, CZECH REPUBLIC.
Extensive peripheral nerve injuries often lead to the loss of neurological function due to slow regeneration and limited recovery over large gaps. Current clinical interventions, such as nerve guidance conduits (NGCs), face challenges in creating biomimetic microenvironments that effectively support nerve repair. The developed GrooveNeuroTube is composed of hyaluronic acid methacrylate and gelatin methacrylate hydrogel, incorporating active agents (growth factors and antibacterial agents) encapsulated within an NGC conduit made of 3D-printed PCL grid fibers.
View Article and Find Full Text PDFNeuron
September 2025
Shanghai Stomatological Hospital & School of Stomatology, State Key Laboratory of Medical Neurobiology and MOE Frontiers Center for Brain Science, Institutes of Brain Science, Fudan University, Shanghai, China. Electronic address:
Existing treatments for chronic pain often prove ineffective and carry adverse side effects, highlighting the need for better analgesics, including non-pharmacological treatments. We demonstrate that transcutaneous electrical nerve stimulation (TENS), when repeatedly applied during the early phase of nerve injury in mice, produces sustained analgesic effects by activating the dorsal column nucleus (DCN)-thalamic-cortical pathway, which transmits vibration, discriminative touch, and proprioception. Mechanistically, TENS selectively activates glutamatergic neurons in the DCN (DCN) via exciting Aβ low-threshold mechanoreceptors (Aβ-LTMRs) in dorsal root ganglia (DRGs).
View Article and Find Full Text PDFInt J Surg Case Rep
September 2025
Pediatric Ophthalmology and Strabismus Division, King Khalid Eye Specialist Hospital, Riyadh, Saudi Arabia.
Introduction And Clinical Importance: To present a case of traumatic third cranial nerve palsy and discuss the management challenges associated with this condition.
Case Presentation: A 27-year-old male patient was referred to our hospital following a road traffic accident that resulted in multiple injuries, including traumatic brain injury, orbital injury. The patient presented with left complete upper lid ptosis, a fixed dilated pupil, and restricted extraocular muscle movements in the left eye except abduction with large exotropia >90 PD and hypotropia 25 PD diagnosed as left oculomotor nerve palsy.
Sci Prog
September 2025
Department of Neurology, University of Afyonkarahisar Health Sciences, Afyonkarahisar, Türkiye.
A considerable number of individuals are diagnosed with idiopathic trigeminal neuralgia. In order to achieve a more complete understanding of the pathophysiology, it is essential to adopt a range of novel approaches and utilize new animal models. This study investigated changes in the messenger RNA (mRNA) expression of ion-channels in a newly developed animal model of trigeminal neuropathic pain induced by cervical spinal dorsal horn compression.
View Article and Find Full Text PDFJ Drug Target
September 2025
Neuroscience Research Center, Baqiyatallah University of Medical Sciences, Tehran, Iran.
Background: Chronic constriction injury (CCI) of the sciatic nerve induces neuropathic pain, inflammation, oxidative stress, and neurodegenerative changes, impairing sensory and emotional function. While curcumin is well recognized for its anti-inflammatory and neuroprotective properties, its therapeutic use is limited by poor bioavailability. Curcumin liposomal nanoparticles (CLNs) offer improved delivery and stability.
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