Πέμπτη 6 Μαΐου 2021

Effects of chitosan and platelet-rich plasma on facial nerve regeneration in an animal model

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Eur Arch Otorhinolaryngol. 2021 May 6. doi: 10.1007/s00405-021-06859-6. Online ahead of print.

ABSTRACT

PURPOSE: There is still no widely-accepted local agent proven to be effective in nerve regeneration. We aimed to investigate the effects of chitosan gel and platelet-rich plasma MATERIALS AND METHODS: Electrophysiological measurements were performed before and immediately after injury. The injured nerves were covered with spongostan impregnated with the following agents: Group 1 (Control Group): Saline at a dose of 50 µl; Group 2: Chitosan (CHT) at a dose of 50 µl; Group 3: PRP at a dose of 50 ml; and Group 4: a solution of CHT with PRP (1:1). The final measurements were performed after 3 weeks and the injured nerve of each rat was removed.

RESULTS: There were statistically-significant differences between the groups regarding the measurements of the after-treatment values of stimulus threshold (p < 0.05). The best improvem ent in electrophysiological measurement and histopathological evaluation was found in Group 4 (CHT-PRP).

CONCLUSION: Chitosan gel has a positive effect on nerve healing and applying it along with PRP can enhance the effect of chitosan.

PMID:33956207 | DOI:10.1007/s00405-021-06859-6

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