Histoarchitecture restoration of cerebellar sub-layers as a response to estradiol treatment following Kainic acid-induced spinal cord injury

Cell and Tissue Research
Amany FaragR Eltaysh

Abstract

One of the major impacts of spinal cord injury (SCI) is the cerebellar neurological malfunction and deformation of its sub-layers. This could be due to the enormous innervation of the spinocerebellar tract from the posterior gray horn in the spinal cord to the ipsilateral cerebellum. Although the neuroprotective role of estradiol in spinal cord (SC) injuries, as well as its ability to delay secondary cell death changes, is well-known, its effect on cerebellar layers is not fully investigated. In this study, a SCI model was achieved by injection of Kainic acid into SC of adult Male Wistar rats in order to assess the effects of SCI on the cerebellum. The animals were classified into SCI group (animals with SCI), estradiol-treated group (animals with SCI and received estradiol), control groups, and sham control group. The microscopical examination 24 h after induction of SCI revealed that KA induced the most characteristics of neurodegeneration including astrocytic propagation and microglial activation. The estradiol was injected intraperitoneally 20 min after induction of SCI, and the samples were collected at 1, 3, 7, 14, and 30 days. Histologically, the estradiol reduced the inflammatory response, enhanced the recovery of molec...Continue Reading

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Jan 5, 2021·Frontiers in Neuroscience·Hui WangAi-Min Wu

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