Effect of a 0.5-T static magnetic field on conduction in guinea pig spinal cord

Journal of the Neurological Sciences
Abigail CootsArthur D Rosen

Abstract

Compound-evoked potentials were recorded from excised adult guinea pig spinal cords before, during, and following exposure to a 0.5-T static magnetic field (SMF). There was no change in response latency during exposure but there was a small, statistically significant, decrease in amplitude. Maximum effect was evident 1 to 2 min after the field was turned on with return to baseline within 1 min after the field was turned off. These results may be explained by a conduction block in the small axon subpopulation due to the effect of static magnetic fields on voltage-activated sodium channels. The relative selectivity of the field is believed to occur because of the relatively greater number of sodium channels present in smaller axons.

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Citations

Aug 28, 2007·Annals of Biomedical Engineering·Kang-Hsuan ChiuHaw-Ming Huang
Apr 25, 2007·Electromagnetic Biology and Medicine·Marko S Markov
Jun 24, 2008·Electromagnetic Biology and Medicine·Mohamed AmmariHafedh Abdelmelek
Feb 27, 2008·International Journal of Radiation Biology·Che-Tong LinHaw-Ming Huang
Oct 13, 2017·Neuromodulation : Journal of the International Neuromodulation Society·Joseph J TharayilAngel V Peterchev
Aug 3, 2011·The Journal of Physiology·Antonio OlivieroJuan Aguilar
Mar 21, 2012·Bioelectromagnetics·Hideyuki OkanoHozumi Tatsuoka
Jul 30, 2019·Neuromodulation : Journal of the International Neuromodulation Society·Kai HeimrathTino Zaehle
Jul 16, 2020·Electromagnetic Biology and Medicine·Manuel J FreireAlberto T Pérez
Sep 22, 2018·International Journal of Radiation Biology·Marko DinčićJasna Todorović
Oct 16, 2013·Neuromodulation : Journal of the International Neuromodulation Society·Casto RivadullaAntonio Oliviero
Dec 31, 2019·Neuroscience Research·Ippei NojimaTatsuya Mima

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