Enhanced Peripheral Nerve Regeneration by a High Surface Area to Volume Ratio of Nerve Conduits Fabricated from Hydroxyethyl Cellulose/Soy Protein Composite Sponges

ACS Omega
Yanteng ZhaoYun Chen

Abstract

Multichannel nerve guide conduits (MCNGCs) have been widely studied and exhibited outstanding nerve repair function. However, the effect of the geometric structure of MCNGCs on the nerve repair function was still not clear. Herein, we postulated that MCNGCs with different inner surface area-to-volume ratios (ISA/V) of the channels inside the nerve guide conduits (NGCs) would show different nerve repair functions. Therefore, in current work, we constructed a series of hydroxyethyl cellulose/soy protein sponge-based nerve conduit (HSSN) with low, medium, and high ISA/V from hydroxyethyl cellulose (HEC)/soy protein isolate (SPI) composite sponges, which were abbreviated as HSSN-L, HSSN-M and HSSN-H, respectively. These NGCs were applied to bridge and repair a 10 mm long sciatic nerve defect in a rat model. Finally, the influence of ISA/V on nerve repair function was evaluated by electrophysiological assessment, histological investigation, and in vivo biodegradability testing. The results of electrophysiological assessment and histological investigation showed that the regenerative nerve tissues bridged with HSSN-H and HSSN-M had higher compound muscle action potential amplitude ratio, higher percentage of positive NF200 and S100 s...Continue Reading

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Citations

Aug 2, 2019·International Journal for Numerical Methods in Biomedical Engineering·Liwei YanLiqiang Gu
Jul 28, 2019·Journal of Tissue Engineering and Regenerative Medicine·Maliheh JahromiAbbas Bakhtiari
Sep 19, 2020·Journal of Biological Engineering·Caleb E StewartDadong Wang
Jun 9, 2018·Environmental Science & Technology·Yujun ZhouJiuhui Qu
Sep 23, 2021·Journal of Tissue Engineering and Regenerative Medicine·Preethy Amruthavarshini RameshAnuradha Subramanian

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