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- W2022772831 abstract "Abstract Neonatal X‐irradiation of central nervous system (CNS) tissue markedly reduces the glial population in the irradiated area. Previous in vivo studies have demonstrated regenerative success of adult dorsal root ganglion (DRG) neurons into the neonatally‐irradiated spinal cord. The present study was undertaken to determine whether these results could be replicated in an in vitro environment. The lumbosacral spinal cord of anaesthetised Wistar rat pups, aged between 1 and 5 days, was subjected to a single dose (40 Gray) of X‐irradiation. A sham‐irradiated group acted as controls. Rats were allowed to reach adulthood before being killed. Their lumbosacral spinal cords were dissected out and processed for sectioning in a cryostat. Cryosections (10 μm‐thick) of the spinal cord tissue were picked up on sterile glass coverslips and used as substrates for culturing dissociated adult DRG neurons. After an appropriate incubation period, cultures were fixed in 2% paraformaldehyde and immunolabelled to visualise both the spinal cord substrate using anti‐glial fibrillary acidic protein (GFAP) and the growing DRG neurons using anti‐growth associated protein (GAP‐43). Successful growth of DRG neurites was observed on irradiated, but not on non‐irradiated, sections of spinal cord. Thus, neonatal X‐irradiation of spinal cord tissue appears to alter its environment such that it can later support, rather than inhibit, axonal regeneration. It is suggested that this alteration may be due, at least in part, to depletion in the number of and/or a change in the characteristics of the glial cells." @default.
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- W2022772831 date "2000-12-01" @default.
- W2022772831 modified "2023-09-27" @default.
- W2022772831 title "Cryosections of pre‐irradiated adult rat spinal cord tissue support axonal regeneration in vitro" @default.
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- W2022772831 doi "https://doi.org/10.1016/s0736-5748(00)00053-8" @default.
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