Tissue Plasminogen Activator Loaded PCL Nanofibrous Scaffold Promoted Nerve Regeneration After Sciatic Nerve Transection in Male Rats
Autor: | Abbas Aliaghaei, Reza Mastery Farahni, Ali Rashidiani-Rashidabadi, Saba Ilkhani, Yousef Sadeghi, Ensieh Sajadi, Mohammad Sadegh Bagheri, Amir Raoofi, Mohammad-Amin Abdollahifar |
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Rok vydání: | 2020 |
Předmět: |
0301 basic medicine
Male Pathology medicine.medical_specialty medicine.medical_treatment Toxicology Tissue plasminogen activator 03 medical and health sciences Mice 0302 clinical medicine Dorsal root ganglion In vivo medicine Animals Cells Cultured Tissue Scaffolds Chemistry General Neuroscience Regeneration (biology) Axotomy Spinal cord Sciatic Nerve Nerve Regeneration Rats 030104 developmental biology medicine.anatomical_structure Tissue Plasminogen Activator Immunohistochemistry Sciatic nerve 030217 neurology & neurosurgery medicine.drug |
Zdroj: | Neurotoxicity research. 39(2) |
ISSN: | 1476-3524 |
Popis: | According to the studies, damages to the peripheral nerve as a result of a trauma or acute compression, stretching, or burns accounts for a vast range of discomforts which strongly impressed the patient’s life quality. Applying highly potent biomolecules and growth factors in the damaged nerve site would promote the probability of nerve regeneration and functional recovery. Tissue plasminogen activator (tPA) is one of the components that can contribute importantly to degenerating and regenerating the peripheral nerves following the injuries occurred and the absence of this biomolecule hinders the recoveries of the nerves. This technique would guarantee the direct accessibility of tPA for the regenerating axons. Structural, physical, and in vitro cytotoxicity evaluations were done before in vivo experiments. In this study, twenty-four mature male rats have been exploited. The rats have been classified into four groups: controls, axotomy, axotomy + scaffold, and axotomy + tPA-loaded scaffold. Four, 8, and 12 weeks post-surgical, the sciatic functional index (SFI) has been measured. After 12 weeks, the spinal cord, sciatic nerve, and dorsal root ganglion specimens have been removed and stereological procedures, immunohistochemistry, and gene expression have been used to analyze them. Stereological parameters, immunohistochemistry of GFAP, and gene expression of S100, NGF, and BDNF were significantly enhanced in tPA-loaded scaffold group compared with axotomy group. The most similarity was observed between the results of control group and tPA-loaded scaffold group. According to the results, a good regeneration of the functional nerve tissues in a short time was observed as a result of introducing tPA. |
Databáze: | OpenAIRE |
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