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- W1995727822 endingPage "258" @default.
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- W1995727822 abstract "Central nervous system (CNS) axons recover poorly following injury because of the expression of myelin-derived inhibitors of axonal outgrowth such as Nogo, myelin-associated glycoprotein (MAG), and oligodendrocyte-myelin glycoprotein (OMgp), all of which bind to the Nogo-66 receptor 1 (NgR1). Herein we examine the role of NgR1 in the recovery of motor and cognitive function after traumatic brain injury (TBI) using a controlled cortical impact (CCI) model in NgR1 knockout (KO) and wild-type (WT) mice. Four weeks post-injury, scores on the Novel Object Recognition test were significantly increased in NgR1 KO mice compared with WT mice (p<0.05), but motor behavior test scores did not differ significantly between the two groups. Nissl staining showed that NgR1 KO mice had less brain injury volume 2 weeks after CCI (p<0.05). Histological analysis revealed more doublecortin (DCX+) cells (p<0.01) and more Ki-67+ cells in the contralateral dentate gyrus (DG) (p<0.05) 2 weeks after CCI in NgR1 KO mice than in WT. Furthermore, DCX+ cells still retained their longer processes in KO mice (p<0.01) 4 weeks following trauma. The number of bromodeoxyuridine (BrdU)+ cells did not differ between the two groups at 4 weeks post-trauma, but KO mice had higher numbers of cells that co-stained with NeuN, a marker of mature neurons. Increased transcription of growth-associated protein (GAP)-43 in both the injured and contralateral sides of the hippocampus (both p<0.05) was detected in NgR1 KO mice relative to WT. These data suggest that NgR1 negatively influences plasticity and cognitive recovery after TBI." @default.
- W1995727822 created "2016-06-24" @default.
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- W1995727822 date "2013-02-15" @default.
- W1995727822 modified "2023-09-26" @default.
- W1995727822 title "Inhibition of Nogo-66 Receptor 1 Enhances Recovery of Cognitive Function after Traumatic Brain Injury in Mice" @default.
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- W1995727822 doi "https://doi.org/10.1089/neu.2012.2493" @default.
- W1995727822 hasPubMedCentralId "https://www.ncbi.nlm.nih.gov/pmc/articles/3579383" @default.
- W1995727822 hasPubMedId "https://pubmed.ncbi.nlm.nih.gov/22967270" @default.
- W1995727822 hasPublicationYear "2013" @default.
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