Experimental study on nerve regeneration through the basement membrane tubes of the nerve, muscle, and artery

Microsurgery
S ItohS Ichinose

Abstract

We evaluated neurotization after transplantation with lyophilized nerves, muscles, and arteries, and examined the possibility of practical application of long bridging grafts. Grafts of 10 mm and 25 mm of lyophilized nerves, muscles, and arteries harvested from Fisher rats were transplanted to the sciatic nerves of recipient Lewis rats. The histological changes undergone by short grafts were observed at weekly intervals. The sham-operated and isograft groups were used to compare the results of long grafts. In both the nerve and muscle-graft group, regenerated axons grew out through the residual basement membrane tube. But in the muscle graft group, phagocytosis of myofibril debris took longer than that of degenerated axons. No statistical differences were found between results of TSI, induced EMG, and quantitative analysis of myelinated axons in the nerve and muscle graft groups. No neurotization was noted in the long artery graft. In long grafts, laminin found on the basement membrane may not be sufficient to accelerate neurotization, and arteries should not be used for tubulization.

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Citations

Mar 5, 2003·Microsurgery·Alécio Santos BarcelosCarlos R Padovani
May 24, 2001·Microsurgery·A de C Rodrigues, M D Silva
Aug 13, 2013·Journal of Cranio-maxillo-facial Surgery : Official Publication of the European Association for Cranio-Maxillo-Facial Surgery·Rahim MohammadiKeyvan Amini
Oct 10, 2020·Drug Delivery and Translational Research·Majid RahmatiMajid Salehi
Oct 7, 2008·Acta Biomaterialia·Li YaoAbhay Pandit

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