Synaptic plasticity and sensory-motor improvennent following fibrin sealant dorsal root reimplantation and mononuclear cell therapy

dc.contributorUniversidade Estadual de Campinas (UNICAMP)
dc.contributorUniversidade Estadual Paulista (Unesp)
dc.contributorUniversidade Federal de Minas Gerais (UFMG)
dc.creatorBenitez, Suzana U.
dc.creatorBarbizan, Roberta
dc.creatorSpejo, Aline B.
dc.creatorFerreira, Rui S. [UNESP]
dc.creatorBarraviera, Benedito [UNESP]
dc.creatorGoes, Alfredo M.
dc.creatorOliveira, Alexandre L. R. de
dc.date2015-03-18T15:56:20Z
dc.date2015-03-18T15:56:20Z
dc.date2014-09-09
dc.date.accessioned2023-09-12T03:13:19Z
dc.date.available2023-09-12T03:13:19Z
dc.identifierhttp://dx.doi.org/10.3389/fnana.2014.00096
dc.identifierFrontiers In Neuroanatomy. Lausanne: Frontiers Research Foundation, v. 8, 16 p., 2014.
dc.identifier1662-5129
dc.identifierhttp://hdl.handle.net/11449/117508
dc.identifier10.3389/fnana.2014.00096
dc.identifierWOS:000341375800001
dc.identifierWOS000341375800001.pdf
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8766992
dc.descriptionRoot lesions may affect both dorsal and ventral roots. However, due to the possibility of generating further inflammation and neuropathic pain, surgical procedures do not prioritize the repair of the afferent component. The loss of such sensorial input directly disturbs the spinal circuits thus affecting the functionality of the injuried limb. The present study evaluated the motor and sensory improvement following dorsal root reimplantation with fibrin sealant (FS) plus bone marrow mononuclear cells (MC) after dorsal rhizotomy. MC were used to enhance the repair process. We also analyzed changes in the glial response and synaptic circuits within the spinal cord. Female Lewis rats (6-8 weeks old) were divided in three groups: rhizotomy (RZ group), rhizotomy repaired with FS (RZ+FS group) and rhizotomy repaired with FS and MC (RZ+FS+MC group). The behavioral tests electronic von-Frey and Walking track test were carried out. For immunohistochemistry we used markers to detect different synapse profiles as well as glial reaction. The behavioral results showed a significant decrease in sensory and motor function after lesion. The reimplantation decreased glial reaction and improved synaptic plasticity of afferent inputs. Cell therapy further enhanced the rewiring process. In addition, both reimplanted groups presented twice as much motor control compared to the non-treated group. In conclusion, the reimplantation with FS and MC is efficient and may be considered an approach to improve sensory-motor recovery following dorsal rhizotomy.
dc.descriptionConselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)
dc.descriptionFundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
dc.descriptionUniv Estadual Campinas, Inst Biol, Dept Struct & Funct Biol, Campinas, SP, Brazil
dc.descriptionUniv Sao Paulo Julio de Mesquita Filho, Ctr Studies Venoms & Venomous Anim CEVAP, Botucatu, SP, Brazil
dc.descriptionUniv Fed Minas Gerais, Inst Biol Sci, Dept Biochem & Immunol, Belo Horizonte, MG, Brazil
dc.descriptionUniv Sao Paulo Julio de Mesquita Filho, Ctr Studies Venoms & Venomous Anim CEVAP, Botucatu, SP, Brazil
dc.descriptionFAPESP: 08/57906-3
dc.descriptionCNPq: 573913/2008-0
dc.format16
dc.languageeng
dc.publisherFrontiers Research Foundation
dc.relationFrontiers In Neuroanatomy
dc.relation3.152
dc.relation1,999
dc.rightsAcesso aberto
dc.sourceWeb of Science
dc.subjectdorsal root rhizotomy
dc.subjectfibrin sealant
dc.subjectmononuclear cells
dc.subjectmotor control
dc.subjectsensory recovery
dc.titleSynaptic plasticity and sensory-motor improvennent following fibrin sealant dorsal root reimplantation and mononuclear cell therapy
dc.typeArtigo


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