The motor and sensory branches of the somatic peripheral nervous system (PNS) can be visualised by different imaging systems. This article focuses on imaging of peripheral nerves by magnetic resonance imaging (MRI) and high-resolution ultrasound (US). The anatomic basis of the peripheral nerve image, common pathologies and clinical value of US and MRI imaging of peripheral nerves are reviewed.
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J Hand Surg Am
January 2025
Hand and Upper Extremity Division of Plastic and Reconstructive Surgery, University of California Davis, Sacramento, CA.
Purpose: Current technologies to define the zone of acute peripheral nerve injury intraoperatively are limited by surgical experience, time, cumbersome electrodiagnostic equipment, and interpreter reliability. In this pilot study, we evaluated a real-time, label-free optical technique for intraoperative nerve injury imaging. We hypothesize that fluorescence lifetime imaging (FLIm) will detect a difference between the time-resolved fluorescence signatures for acute crush injuries versus uninjured segments of peripheral nerves in sheep.
View Article and Find Full Text PDFCurr Pharm Des
January 2025
Department of Pharmacology, School of Pharmaceutical Education and Research, Jamia Hamdard, New Delhi 110062, India.
Diabetic Neuropathy (DN) is a widespread and severely debilitating consequence of diabetes mellitus that impairs function, causes discomfort, and damages peripheral nerves. Numerous molecular pathways are involved in the pathogenesis of DN, including cyclooxygenase, polyol, protein kinase C, and inflammatory pathways. These molecular pathways may be responsible for the mechanism behind the onset and development of DN.
View Article and Find Full Text PDFNeurochem Res
January 2025
Department of Neurology, Affiliated Hospital of Zunyi Medical University, Zunyi, China.
Alzheimer's disease (AD) is a central nervous system degenerative disease with a stealthy onset and a progressive course characterized by memory loss, cognitive dysfunction, and abnormal psychological and behavioral symptoms. However, the pathogenesis of AD remains elusive. An increasing number of studies have shown that oligodendrocyte progenitor cells (OPCs) and oligodendroglial lineage cells (OLGs), especially OPCs and mature oligodendrocytes (OLGs), which are derived from OPCs, play important roles in the pathogenesis of AD.
View Article and Find Full Text PDFAlzheimers Dement
December 2024
Center for Neurodegenerative Disease Research, Department of Pathology and Laboratory Medicine, University of Pennsylvania, Perelman School of Medicine, Philadelphia, PA, USA.
Background: Glaucoma is characterized by progressive optic nerve degeneration that results in irreversible blindness, and it can be considered a neurodegenerative disorder of both the eye and the brain. Increasing evidence suggest that glaucoma shares some common neurodegenerative pathways with Frontotemporal Lobar Degeneration (FTLD), Amyotrophic Lateral Sclerosis (ALS), and Alzheimer's Disease (AD) among others. Interestingly, a recent study revealed the presence of abnormal TAR DNA-binding protein 43 (TDP-43) inclusions and aggregates in retinal ganglion cells and other retinal cell types in FTLD-TDP patients; however, the significance of this pathology and its impact on retinal function and optical nerve integrity is unknown.
View Article and Find Full Text PDFBMC Ophthalmol
January 2025
Department of Ophthalmology, University of Health Sciences, Izmir Bozyaka Education and Research Hospital, Bahar Mah. Saim Çıkrıkcı Cad No: 59, Karabağlar, Turkey.
Background: The aim of the present study was to compare the rates of change in Ganglion Cell- Inner Plexiform Layer (GCIPL) and Retinal Nerve Fiber Layer (RNFL) thickness, as measured by Optical Coherence Tomography (OCT) Guided Progression Analysis (GPA) program in control group, Primary Open Angle Glaucoma (POAG) and Pseudoexfoliation Glaucoma (PXG) eyes.
Methods: 60 POAG and 60 PXG patients and 30 control group patients were included in the study. Patients diagnosed with glaucoma were divided into two groups as mild (Mean deviation (MD) > -6.
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