Original Scientific Article
The effects of tacrolimus and erythropoietin on histopathologic and functional recovery of sciatic nerve crush in mice
Kimia Mansouri ,
Hamidreza Fattahian * ,
Alireza Jahandideh ,
Hesameddin Akbarein

Mac Vet Rev 2023; 46 (2): 147 - 163

10.2478/macvetrev-2023-0020

Received: 14 January 2023

Received in revised form: 12 April 2023

Accepted: 10 May 2023

Available Online First: 30 June 2023

Published on: 15 October 2023

Correspondence: Hamidreza Fattahian, hamidrezafattahian@yahoo.com
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Abstract

Currently, despite decades of trial and error, peripheral nerve injury is an impenetrable clinical dilemma. Any proven effective pharmacologic agent leads to a decisive leap forward to the clinical management of neuropathies. This study investigated the effects of tacrolimus and erythropoietin on sciatic nerve regeneration. Twenty-three mice were randomly assigned to tacrolimus, erythropoietin, tacrolimus + erythropoietin, control, and sham groups following sciatic nerve crush via hemostatic forceps. Medications were administered for 28 consecutive days. The sham group received neither crush injury nor medication. Histopathologic, immunohistochemical, and walking track analyses were performed. In the erythropoietin group, axonal swelling was significantly reduced and the average axonal number significantly recovered up to 75% of normal nerve compared to other groups. Marked immunoreactivity to GFAP and S-100 protein was present in the tacrolimus group. Nevertheless, at least moderate GFAP and S-100 expressions were observed in all of the groups. Functional recovery was superior in the tacrolimus group after 14 days, although a complete return to near-normal function was achieved in all groups after 28 days, regardless of the medication used. Our data supported the neurotrophic effects of tacrolimus and erythropoietin; however, not enough data was gathered to confirm their synergistic effects. Whether these results are extensible to clinical scenarios requires further detailed investigations.

Keywords: crush injury, erythropoietin, regeneration, sciatic nerve, tacrolimus

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Copyright

© 2023 Mansouri K. This is an Open Access article distributed under the terms of the Creative Commons Attribution-NonCommercial License (http://creativecommons.org/licenses/by-nc/4.0/), which permits unrestricted non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.

Conflict of Interest Statement

The authors declared that they have no potential lict of interest with respect to the authorship and/or publication of this article.

Citation Information

Macedonian Veterinary Review. Volume 46, Issue 2, Pages 147-163, e-ISSN 1857-7415, p-ISSN 1409-7621, DOI: 10.2478/macvetrev-2023-0020

The all content of the Macedonian Veterinary Review, except where otherwise noted, is licensed under a Creative Commons Attribution License.