Effectiveness of magnetically aligned collagen for neural regeneration in vitro and in vivo

Bioelectromagnetics
Yawara EguchiShoogo Ueno

Abstract

We investigated the effectiveness of using magnetically aligned collagen (after exposure to a maximum 8-T magnetic field) for nerve regeneration in both an in vitro and in vivo model. Neurite outgrowth from embryonic chick dorsal root ganglion (DRG) neurons was significantly greater on magnetically aligned collagen gel than on control gel, and was dependent on magnetic field strength. Silicone tubes (15 mm length) filled with collagen gel formed bridges between severed rat sciatic nerves. We prepared tubes for four groups: collagen gel only (COL), magnetically aligned collagen gel (M-COL), collagen gel mixed with Schwann cells (S-COL), and magnetically aligned collagen gel mixed with Schwann cells (M-S-COL). The ratio of infiltrating regenerated nerves was higher in the M-COL group compared to the COL group at 8 weeks post-operation. There were no significant differences between the two groups with and without Schwann cells. Compound action potentials showed higher amplitude and shorter latency in the M-COL than COL group at 12 weeks post-operation. The number and diameter of regenerated axons increased significantly in the M-COL compared with the COL group at 12 weeks post-operation. Here we demonstrated that magnetically orie...Continue Reading

References

May 1, 1984·The Biochemical Journal·J Torbet, M C Ronzière
Oct 9, 2002·Journal of Bone and Mineral Research : the Official Journal of the American Society for Bone and Mineral Research·Hiroko KotaniKazuto Hoshi
Oct 30, 2003·Neuroscience Letters·Yawara EguchiShoogo Ueno
May 6, 2005·Brain : a Journal of Neurology·Xiaodong WangXiaosong Gu
Jun 11, 2011·Muscle & Nerve·Amy M MoorePhilip J Johnson

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Citations

Oct 27, 2015·Biotechnology and Bioengineering·Dilip ThomasDimitrios I Zeugolis
Jun 19, 2020·Materials·Robert StreubelThomas P Russell
Aug 31, 2017·Scientific Reports·G Y LiuJ P Frampton
Feb 2, 2021·ACS Biomaterials Science & Engineering·Ross C Bretherton, Cole A DeForest

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