Effect of Sesamol on Damaged Peripheral Nerves: Evaluation of Functional, Histological, Molecular, and Oxidative Stress Parameters

Overview

Journal Avicenna J Phytomed

Publisher Mashhad University of Medical Sciences

Date 2022 Dec 30

PMID 36583179

Authors

Nastaran Amerian

Athar Talebi

Manouchehr Safari

Hamid Reza Sameni

Ali Ghanbari

Parisa Hayat

Moslem Mohammadi

Maryam Ardekanian

Sam Zarbakhsh

Affiliations

Soon will be listed here.

Abstract

Objective: Peripheral nerve injury is a clinical problem that may cause sensory and motor inabilities. Sesamol is an antioxidant that can help in repairing damaged central nervous system (CNS) and other organs. The present study aimed to investigate whether the antioxidant effects of sesamol could improve the function, structure, and myelination in rats' damaged peripheral nervous system (PNS).

Materials And Methods: In this study, 28 adult male Wistar rats were randomly divided into four groups. In the sham group, the sciatic nerve was exposed and restored to its place without inducing crush injury. The control received DMSO (solvent) and the two experimental groups received 50 or 100 mg/kg sesamol intraperitoneally for 28 days after sciatic nerve crush injury, respectively. Next, sciatic function index (SFI), superoxide dismutase (SOD) activity, malondialdehyde (MDA) level, expression of nerve growth factor (NGF) and myelin protein zero (MPZ) proteins in the sciatic nerve, and histological indices of the sciatic nerve and gastrocnemius muscle were evaluated.

Results: The results showed that sesamol reduced oxidative stress parameters, increased expression of NGF and MPZ proteins, and improved function and regeneration of the damaged sciatic nerve. Furthermore, a significant regeneration was observed in the gastrocnemius muscle after treatment with sesamol. Although administration of both doses of sesamol was useful, the 100 mg/kg dose was more effective than the 50 mg/kg one.

Conclusion: The results suggest that sesamol may be effective in improving damaged peripheral nerves in rats by reducing oxidative stress and increasing the expression of NGF and MPZ proteins.

Citing Articles

Sesamol as a potent anticancer compound: from chemistry to cellular interactions.

Kumar A, Bajaj P, Singh B, Paul K, Sharma P, Mehra S Naunyn Schmiedebergs Arch Pharmacol. 2024; 397(7):4961-4979.

PMID: 38180556 DOI: 10.1007/s00210-023-02919-2.

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