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Brain Res. 1989 Apr 24;485(2):309-16.

Stimulation of rat sciatic nerve regeneration with pulsed electromagnetic fields.

Author information

1
Center for Biomedical Engineering, University of Kentucky, Lexington 40506.

Abstract

The effects of pulsed electromagnetic fields (PEMF) on rat sciatic nerve regeneration after a crush lesion were determined. The rats were placed between a pair of Helmholtz coils and exposed to PEMF of frequency 2 Hz and magnetic flux density of 0.3 mT. A 4 h/day treatment for 3-6 days increased the rate of nerve regeneration by 22%. This stimulatory effect was independent of the orientation of the coils. Exposure times of 1 h/day-10 h/day were equally effective in stimulating nerve regeneration. Rats exposed to PEMF for 4 h/day for 7 days before crush, followed by 3 days after crush without PEMF, also showed significantly increased regeneration. This pre-exposure 'conditioning' effect suggests that PEMF influences regeneration indirectly.

PMID:
2497929
DOI:
10.1016/0006-8993(89)90575-1
[Indexed for MEDLINE]

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