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Reconstruction of nerve conduits is a promising method for functional improvement in peripheral nerve repair. Besides choosing of a suitable polymer for conduit construction, adding factors such as Taurine improve a more advantageous microenvironment for defect nerve regeneration. Showing several major biological properties of Taurine, for example, regulation of the osmotic pressure, modulation of neurogenesis, and calcium hemostasis, makes it an appropriate option for repairing of defected nerves. To this, we examined repairing effects of Taurine-loading PCL conduits cultured with human endothelial stem cells (hEnSCs) on resected sciatic nerves. PCL/Taurine/Cell conduits transplanted to a 10-mm sciatic nerve gap. Forty-two wistar rats were randomly divided to seven groups: (1) Normal group, (2) Negative control (NC), (3) Positive control (nerve Autograft group), (4) PCL conduits group (PCL), (5) Taurine loaded PCL conduits group (PCL/Taurine), (6) hEnSCs cultured on the PCL conduits (PCL/Cell), (7) hEnSCs cultured on the PCL/Taurine conduits (PCL/Taurine/Cell). Functional recovery of motor and sensory nerves, the action potential of exciting muscle and motor distal latency has seen in PCL/Taurine/Cell conduits. Histological studies showed also remarkable nerve regeneration and obvious bridging has seen in this group. In conclusion, PCL/Taurine/Cell conduits showing suitable mechanical properties and biocompatibility may improve sciatic nerve regeneration.
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http://dx.doi.org/10.1016/j.reth.2022.09.004 | DOI Listing |
Biomater Sci
September 2025
Department of Anatomical Sciences and Reproductive Biology, School of Medicine, Isfahan University of Medical Sciences, Hezarjerib street, Isfahan, Iran.
Nerve guidance conduits (NGCs) represent a promising strategy to support axonal growth and orientation during peripheral nerve regeneration. Polycaprolactone (PCL) offers suitable mechanical and biodegradable properties for NGC fabrication. To enhance its functionality, carbon quantum dots (CQDs) can improve physical and chemical properties, while extract contributes bioactive compounds that support neurogenesis and nerve repair.
View Article and Find Full Text PDFJ Plast Reconstr Aesthet Surg
September 2025
Department of Orthopaedic Surgery, Osaka Metropolitan University Graduate School of Medicine, 1-4-3 Asahimachi, Abeno-ku, Osaka 545-8585, Japan.
Background: Bioabsorbable nerve conduits have recently emerged as alternatives to autologous nerve grafts in peripheral nerve defects. Two types of nerve conduits have thus far been approved for clinical use in Japan: a polyglycolic acid (PGA) conduit and a collagen conduit. However, no studies have yet compared their efficacy in peripheral nerve reconstruction.
View Article and Find Full Text PDFJ Neurosci Res
July 2025
Regenerative Medicine Research Center, Shahroud University of Medical Sciences, Shahroud, Iran.
Regenerative medicine aims to restore damaged tissues or organs using stem cells, biomaterials, and decellularized grafts. Peripheral nerve injuries (PNI), affecting 2.8% of patients, lead to severe functional impairments with global socioeconomic costs exceeding $7 billion annually.
View Article and Find Full Text PDFACS Appl Mater Interfaces
July 2025
Laboratory of Nerve Regeneration, Department of Structural and Functional Biology, Institute of Biology, University of Campinas (UNICAMP), Campinas, Sao Paulo 13083-970, Brazil.
Peripheral nerve injuries (PNIs) by transection require reconstructive surgery, often with highly variable results and persistent sensory and motor deficits. Three-dimensional (3D) printing enables the biofabrication of nerve guidance conduits (NGCs) with the ability to release neurotrophic factors, showing therapeutic potential. We developed a 3D printing process of NGCs using polycaprolactone (PCL) and gelatin methacryloyl (GelMA) integrated with a thermostable fibroblast growth factor 2 (FGF-2).
View Article and Find Full Text PDFFront Immunol
June 2025
Key Laboratory of Neuroregeneration of Jiangsu and the Ministry of Education, Co-Innovation Center of Neuroregeneration, Medical School of Nantong University, Nantong University, Nantong, China.
Peripheral nerve injury (PNI) has emerged as a critical clinical challenge due to its high disability rate and socioeconomic burden. Traditional autologous nerve grafting, limited by donor shortages and risks of secondary surgeries, has driven tissue-engineered nerve conduits to become a research hotspot. This review systematically summarizes recent advances in immunomodulatory nerve conduits, focusing on the biological properties, degradation mechanisms, and pivotal roles of natural materials (e.
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