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Experimental model of facial paralysis by nerve compression in primates (Callithrix sp.): A new model of facial paralysis in small nonhuman primates

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Date
2012-11-01
Author
Neiva, Felipe Costa [UNIFESP]
Borin, Andrei [UNIFESP]
Cinini, Simone [UNIFESP]
Mello, Luiz Eugenio A. M. [UNIFESP]
Cruz, Oswaldo Laercio M. [UNIFESP]
Testa, Jose Ricardo G. [UNIFESP]
Type
Artigo
ISSN
0001-6489
Is part of
Acta Oto-laryngologica
DOI
10.3109/00016489.2012.697639
Metadata
Show full item record
Abstract
Conclusion: We conclude that facial nerve injury induced by compression is associated with a reasonable time window (4 weeks) that allows possible neurotrophic effects to be analyzed. Additionally, there are no hints of cross-innervation by the contralateral facial nerve or parallel innervation by other nerves in the hemiface ipsilateral to the injured nerve. Objective: the aim of this work was to develop an experimental model of facial nerve injury in nonhuman primates (Callithrix sp.). Methods: in this study, individuals of the non-human primate species Callithrix sp. were subjected to three different types of facial nerve injury, and they were observed for 27 days after surgery by video to record their facial movements. Results: Two types of nerve compression caused severe initial facial paralysis followed by gradual recovery until normal levels were reached at the end of the evaluation period. Injury induced by nerve resection was followed by a complete lack of facial movement recovery.
Citation
Acta Oto-laryngologica. London: Informa Healthcare, v. 132, n. 11, p. 1239-1242, 2012.
Keywords
Facial nerve
nerve regeneration
animal models
neurology
cranial nerve diseases
cranial nerves
nerve degeneration
Sponsorship
Fundação de Amparo à Pesquisa do Estado de São Paulo (FAPESP)
URI
http://repositorio.unifesp.br/handle/11600/35492
Collections
  • EPM - Artigos [16058]

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