Acute histopathological responses and long-term behavioral outcomes in mice with graded controlled cortical impact injury
| Autor: | Yang Cao, Chunlong Zhong, Jingang Bao, Yong Wang, Yingying Lin, Qizhong Luo, Jiyao Jiang, Min Liu, Yang Gao, Siyi Xu |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2019 |
| Předmět: |
0301 basic medicine
medicine.medical_specialty Pathology Traumatic brain injury Morris water navigation task Hippocampus lcsh:RC346-429 nerve regeneration traumatic brain injury controlled cortical impact histopathology behavioral manifestations neural regeneration 03 medical and health sciences 0302 clinical medicine Developmental Neuroscience Medicine Neuronal degeneration lcsh:Neurology. Diseases of the nervous system Balance (ability) business.industry Institutional Animal Care and Use Committee medicine.disease 030104 developmental biology Immunohistochemistry Histopathology business 030217 neurology & neurosurgery Research Article |
| Zdroj: | Neural Regeneration Research, Vol 14, Iss 6, Pp 997-1003 (2019) Neural Regeneration Research |
| ISSN: | 1673-5374 |
| Popis: | While animal models of controlled cortical impact often display short-term motor dysfunction after injury, histological examinations do not show severe cortical damage. Thus, this model requires further improvement. Mice were subjected to injury at three severities using a Pin-Point™-controlled cortical impact device to establish secondary brain injury mouse models. Twenty-four hours after injury, hematoxylin-eosin staining, Fluoro-Jade B histofluorescence, and immunohistochemistry were performed for brain slices. Compared to the uninjured side, we observed differences of histopathological findings, neuronal degeneration, and glial cell number in the CA2 and CA3 regions of the hippocampus on the injured side. The Morris water maze task and beam-walking test verified long-term (14–28 days) spatial learning/memory and motor balance. To conclude, the histopathological responses were positively correlated with the degree of damage, as were the long-term behavioral manifestations after controlled cortical impact. All animal procedures were approved by the Institutional Animal Care and Use Committee at Shanghai Jiao Tong University School of Medicine. |
| Databáze: | OpenAIRE |
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