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 | Acesso ao texto completo restrito à biblioteca da Embrapa Florestas. Para informações adicionais entre em contato com cnpf.biblioteca@embrapa.br. |
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Registro Completo |
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Biblioteca(s): |
Embrapa Florestas. |
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Data corrente: |
26/06/2024 |
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Data da última atualização: |
26/06/2024 |
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Tipo da produção científica: |
Artigo em Periódico Indexado |
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Autoria: |
LIMA, G. G. de; SOUSA JÚNIOR, E. L. de; AGGIO, B. B.; SHEE, B. S.; M FILHO, E. M. de; SOUSA SEGUNDO, F. A. de; FOURNET, M. B.; DEVINE, D. M.; MAGALHAES, W. L. E.; SÁ, M. J. C. de. |
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Afiliação: |
GABRIEL G DE LIMA, UNIVERSIDADE FEDERAL DO PARAN´; EMÍLIO L DE SOUSA JÚNIOR, UNIVERSIDADE FEDERAL DE CAMPINA GRANDE; BRUNO B AGGIO, UNIVERSIDADE FEDERAL DO PARANÁ; BOR SHIN SHEE, ATHLONE INSTITUTE OF TECHNOLOGY; EMANUEL M DE M FILHO, UNIVERSIDADE FEDERAL DE CAMPINA GRANDE; FRANCISCO ALIPIO DE SOUSA SEGUNDO, UNIVERSIDADE FEDERAL DE CAMPINA GRANDE; MARGARET B FOURNET, ATHLONE INSTITUTE OF TECHNOLOGY; DECLAN M DEVINE, ATHLONE INSTITUTE OF TECHNOLOGY; WASHINGTON LUIZ ESTEVES MAGALHAES, CNPF; MARCELO J C DE SÁ, UNIVERSIDADE FEDERAL DO PARANÁ. |
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Título: |
Nanocellulose for peripheral nerve regeneration in rabbits using citric acid as crosslinker with chitosan and freeze/thawed PVA. |
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Ano de publicação: |
2021 |
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Fonte/Imprenta: |
Biomedical Materials, v. 16, n. 5, 2021. |
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DOI: |
https://doi.org/10.1088/1748-605X/ac199b |
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Idioma: |
Português |
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Conteúdo: |
This work investigates peripheral nerve regeneration using membranes consisting of pure chitosan (CHI), which was further blended with nanofibrillated cellulose, with citric acid as crosslinker, with posterior addition of polyvinyl alcohol, with subsequent freeze thawing. Nanocellulose improves the mechanical and thermal resistance, as well as flexibility of the film, which is ideal for the surgical procedure. The hydrogel presented a slow rate of swelling, which is adequate for cell and drug delivery. A series of in vitro tests revealed to be non-toxic for neuronal Schwann cell from the peripheral nervous system of Rattus norvegicus, while there was a slight increase in toxicity if crosslink is performed—freeze-thaw. The in vivo results, using rabbits with a 5 mm gap nerve defect, revealed that even though pure CHI was able to regenerate the nerve, it did not present functional recovery with only the deep pain attribute being regenerated. When autologous implant was used jointly with the biomaterial membrane, as a covering agent, it revealed a functional recovery within 15 d when cellulose and the hydrogel were introduced, which was attributed to the film charge interaction that may help influence the neuronal axons growth into correct locations. Thus, indicating that this system presents ideal regeneration as nerve conduits. |
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Palavras-Chave: |
Biomedicina; Cryogels; Nanocellulose; Nanocelulose; Nerve conduits. |
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Thesagro: |
Celulose; Regeneração; Sistema Nervoso. |
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Categoria do assunto: |
K Ciência Florestal e Produtos de Origem Vegetal |
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Marc: |
LEADER 02359naa a2200337 a 4500
001 2165143
005 2024-06-26
008 2021 bl uuuu u00u1 u #d
024 7 $ahttps://doi.org/10.1088/1748-605X/ac199b$2DOI
100 1 $aLIMA, G. G. de
245 $aNanocellulose for peripheral nerve regeneration in rabbits using citric acid as crosslinker with chitosan and freeze/thawed PVA.$h[electronic resource]
260 $c2021
520 $aThis work investigates peripheral nerve regeneration using membranes consisting of pure chitosan (CHI), which was further blended with nanofibrillated cellulose, with citric acid as crosslinker, with posterior addition of polyvinyl alcohol, with subsequent freeze thawing. Nanocellulose improves the mechanical and thermal resistance, as well as flexibility of the film, which is ideal for the surgical procedure. The hydrogel presented a slow rate of swelling, which is adequate for cell and drug delivery. A series of in vitro tests revealed to be non-toxic for neuronal Schwann cell from the peripheral nervous system of Rattus norvegicus, while there was a slight increase in toxicity if crosslink is performed—freeze-thaw. The in vivo results, using rabbits with a 5 mm gap nerve defect, revealed that even though pure CHI was able to regenerate the nerve, it did not present functional recovery with only the deep pain attribute being regenerated. When autologous implant was used jointly with the biomaterial membrane, as a covering agent, it revealed a functional recovery within 15 d when cellulose and the hydrogel were introduced, which was attributed to the film charge interaction that may help influence the neuronal axons growth into correct locations. Thus, indicating that this system presents ideal regeneration as nerve conduits.
650 $aCelulose
650 $aRegeneração
650 $aSistema Nervoso
653 $aBiomedicina
653 $aCryogels
653 $aNanocellulose
653 $aNanocelulose
653 $aNerve conduits
700 1 $aSOUSA JÚNIOR, E. L. de
700 1 $aAGGIO, B. B.
700 1 $aSHEE, B. S.
700 1 $aM FILHO, E. M. de
700 1 $aSOUSA SEGUNDO, F. A. de
700 1 $aFOURNET, M. B.
700 1 $aDEVINE, D. M.
700 1 $aMAGALHAES, W. L. E.
700 1 $aSÁ, M. J. C. de
773 $tBiomedical Materials$gv. 16, n. 5, 2021.
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| 1. |  | CALEGARIO, R. F.; LABATE, M. T. V.; PERONI, LUÍS A.; STACH-MACHADO, D. R.; ASTUA, J. de F.; LABATE, C. A.; MACHADO, M. A.; KITAJIMA, E. W. In vitro expression and antiserum production against the movement protein of Citrus leprosis virus C (CiLV-C). Tropical Plant Pathology, n. 2, v. 37, p. 255-265, March-April, 2012.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: B - 1 |
| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| 2. | | LABATE, M. T. V.; Ko, KENTON; Ko, Z. W.; PINTO, L. S. R. C.; REAL, M. J. U. D.; ROMANO, M. R.; BARJA, P. R.; GRANELL, A.; FRISO, G.; WIJK, K. J. V.; BRUGNOLI, E.; LABATE, C. A. Constitutive expression of pea Lhcb1-2 in tobacco affects plant development, morphology and photosynthetic capacity. Plant Molecular Biology, v. 55, p. 701-714, 2014.| Tipo: Artigo em Periódico Indexado | Circulação/Nível: A - 1 |
| Biblioteca(s): Embrapa Mandioca e Fruticultura. |
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| Registros recuperados : 2 | |
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