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Defining the Zone of Acute Peripheral Nerve Injury Using Fluorescence Lifetime Imaging in a Crush Injury Sheep Model.
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 PDFUse of novel genomic sequencing to characterise carcinoma of unknown primary (CUP) in patient with axillary lymphadenopathy.
BMJ Case Rep
January 2025
Hematology/Oncology, Walter Reed National Military Medical Center, Bethesda, Maryland, USA.
Carcinoma of unknown primary (CUP) comprises 2-5% of cancer diagnoses worldwide, with a prevalence that has modestly declined with increased availability of advanced diagnostic tools such as next-generation sequencing (NGS). This case presentation illustrates the possibilities and gaps that remain with improving diagnostic capabilities in identifying and effectively treating CUP. This is the case of a rapidly enlarging right axillary mass without a primary tumour site and histological evaluation demonstrating a poorly differentiated neoplasm.
View Article and Find Full Text PDFSchwann cells have a limited window of time in which to initiate myelination signaling during early migration in vivo.
Cells Dev
January 2025
Université Paris-Saclay, Hôpital Kremlin Bicêtre, U1195, Inserm, 94276 Le Kremlin Bicêtre, France. Electronic address:
The temporal control of mitotic exit of individual Schwann cells (SCs) is essential for radial sorting and peripheral myelination. However, it remains unknown when, during their multiple rounds of division, SCs initiate myelin signaling in vivo. By manipulating SC division during development, we report that when SCs skip their division during migration, but not during radial sorting, they fail to myelinate peripheral axons.
View Article and Find Full Text PDFExploring The Therapeutic Potential of Natural Plants in Modulating Molecular and Cellular Pathways Involved in Diabetic Neuropathy: Mechanism and Biochemical Evaluation.
Curr 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 PDFHuman endometrial stem cell-derived small extracellular vesicles enhance neurite outgrowth and peripheral nerve regeneration through activating the PI3K/AKT signaling pathway.
J Transl Med
January 2025
Department of Tissue Engineering, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran.
Nowadays, extracellular vesicles (EVs) such as exosomes participate in cell-cell communication and gain attention as a new approach for cell-free therapies. Recently, various studies have demonstrated the therapeutic ability of exosomes, while the biological effect of human endometrial stem cell (hEnSC)-derived small EVs such as exosomes is still unclear. Herein, we obtained small EVs from hEnSC and indicated that these small EVs activate the vital cell signaling pathway and progress neurite outgrowth in PC-12 cell lines.
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