Research Impact of acute inflammation on spinal motoneuron synaptic plasticity following ventral root avulsion

dc.creatorBarbizan, R
dc.creatorOliveira, ALR
dc.date2010
dc.dateMAY 4
dc.date2014-11-19T19:13:27Z
dc.date2015-11-26T17:08:17Z
dc.date2014-11-19T19:13:27Z
dc.date2015-11-26T17:08:17Z
dc.date.accessioned2018-03-28T23:56:54Z
dc.date.available2018-03-28T23:56:54Z
dc.identifierJournal Of Neuroinflammation. Biomed Central Ltd, v. 7, 2010.
dc.identifier1742-2094
dc.identifierWOS:000278293800001
dc.identifier10.1186/1742-2094-7-29
dc.identifierhttp://www.repositorio.unicamp.br/jspui/handle/REPOSIP/70971
dc.identifierhttp://www.repositorio.unicamp.br/handle/REPOSIP/70971
dc.identifierhttp://repositorio.unicamp.br/jspui/handle/REPOSIP/70971
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/1280323
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionBackground: Ventral root avulsion is a proximal nerve root lesion in which ventral motor nerve rootlets are torn from surface of the spinal cord, resulting in extensive death of motoneurons. It has been previously shown that if such lesioning is performed in an animal with experimental autoimmune encephalomyelitis (EAE), a significant number of motoneurons can be rescued despite an intense inflammatory reaction. This rescue effect has been attributed to production of a number of neurotrophic factors by invading T cells. Synaptological changes may be involved in neuronal degeneration, and a better understanding of the role of these changes may be of importance for developing new strategies to promote neuronal survival. The objective of the present work was to evaluate neuronal survival, astroglial reaction and synaptic input changes in spinal cord anterior horn motor nuclei after ventral root avulsion in animals with EAE, both during peak disease and after remission. Methods: Lewis rats were subjected to unilateral avulsion of lumbar ventral roots (VRA) and divided into three groups: VRA control, VRA at peak of EAE, and VRA during EAE remission. The animals were sacrificed and their lumbar spinal cords processed for immunohistochemistry, transmission electron microscopy, and motoneuron counting. Results: The results indicate a reduction in astroglial reaction, a maintenance of microglial reactivity, and increases in synaptic covering of, and survival of, motoneurons in the VRA+EAE group as compared to VRA alone. Conclusion: The present findings indicate that CNS inflammation may directly influence synaptic plasticity as well as the stability of neuronal networks, positively influencing the survival of lesioned neurons.
dc.description7
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionFAPESP [2007/03645-1, 2010/06043-5]
dc.languageen
dc.publisherBiomed Central Ltd
dc.publisherLondon
dc.publisherInglaterra
dc.relationJournal Of Neuroinflammation
dc.relationJ. Neuroinflamm.
dc.rightsaberto
dc.sourceWeb of Science
dc.subjectMessenger-rna Expression
dc.subjectAnimal-model
dc.subjectNeurons
dc.subjectAxotomy
dc.subjectAdult
dc.subjectCells
dc.subjectMhc
dc.subjectNerve
dc.subjectCord
dc.subjectNeuroprotection
dc.titleResearch Impact of acute inflammation on spinal motoneuron synaptic plasticity following ventral root avulsion
dc.typeArtículos de revistas


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