The Action of Topical Basic Fibroblast Growth Factor in Facial Nerve Regeneration

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dc.contributor.authorToledo, Ronaldo N. [UNIFESP]
dc.contributor.authorBorin, Andrei [UNIFESP]
dc.contributor.authorCruz, Oswaldo L. M. [UNIFESP]
dc.contributor.authorHo, Paulo L.
dc.contributor.authorTesta, Jose R. G. [UNIFESP]
dc.contributor.authorFukuda, Yotaka [UNIFESP]
dc.contributor.institutionUniversidade Federal de São Paulo (UNIFESP)
dc.contributor.institutionButantan Inst
dc.date.accessioned2016-01-24T13:59:33Z
dc.date.available2016-01-24T13:59:33Z
dc.date.issued2010-04-01
dc.description.abstractObjective: To analyze the influence of the topical use of basic fibroblast growth factor ( bFGF) in the regeneration of the facial nerve in rats.Study Design: Experimental study.Materials and Methods: Twenty-eight Wistar adult male rats underwent complete section of the facial nerve trunk, followed by end-to-end anastomosis with epineural sutures. An osmotic minipump equipped with a delivery catheter was implanted subcutaneously near the neural anastomosis. During the subsequent 14 days, 14 animals received a solution containing 25 mu g/ml of bFGF, 250 UI/ml of sodium heparin, and 1,000 mu g/ml of human albumin diluted in Ringer lactate, and 14 animals received a control solution of the same components without bFGF. To evaluate facial nerve regeneration, the number of myelinated fibers evident on histologic sections was counted days ( 7 experimental and 6 control animals) after surgery, and the facial movements of vibrissae and the blink reflex were evaluated on alternate days until the 28th day.Results: On histologic evaluation, the number of myelinated fibers was similar between groups on the 14th day and greater in the group that received bFGF on the 28th day. Behavioral evaluation showed that the animals of the bFGF group presented better functional results between the 6th and 16th days for the blink test and the 14th to the 16th days for vibrissae movements.Conclusion: This study showed that the regeneration of the facial nerve occurred earlier and resulted in significantly more myelinated nerve fibers in the animals that received topical bFGF.en
dc.description.affiliationUniversidade Federal de São Paulo, UNIFESP, Dept Otorhinolaryngol Head & Neck Surg, BR-04025002 São Paulo, Brazil
dc.description.affiliationButantan Inst, Ctr Biotechnol, São Paulo, Brazil
dc.description.affiliationUnifespUniversidade Federal de São Paulo, UNIFESP, Dept Otorhinolaryngol Head & Neck Surg, BR-04025002 São Paulo, Brazil
dc.description.sourceWeb of Science
dc.format.extent498-505
dc.identifierhttp://dx.doi.org/10.1097/MAO.0b013e3181c0e7e9
dc.identifier.citationOtology & Neurotology. Philadelphia: Lippincott Williams & Wilkins, v. 31, n. 3, p. 498-505, 2010.
dc.identifier.doi10.1097/MAO.0b013e3181c0e7e9
dc.identifier.issn1531-7129
dc.identifier.urihttp://repositorio.unifesp.br/handle/11600/32445
dc.identifier.wosWOS:000276555200020
dc.language.isoeng
dc.publisherLippincott Williams & Wilkins
dc.relation.ispartofOtology & Neurotology
dc.rightsinfo:eu-repo/semantics/restrictedAccess
dc.subjectFacial nerveen
dc.subjectFibroblast growth factor 2en
dc.subjectNerve regenerationen
dc.subjectRatsen
dc.titleThe Action of Topical Basic Fibroblast Growth Factor in Facial Nerve Regenerationen
dc.typeinfo:eu-repo/semantics/article
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