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Effect of 0.2 T static magnetic field on human neurons: Remodeling and inhibition of signal transduction without genome instability


, : Effect of 0.2 T static magnetic field on human neurons: Remodeling and inhibition of signal transduction without genome instability. Neuroscience Letters 267(3): 185-188, June 4

We describe the effect of the static magnetic field generated by a 0.2 T magnetic resonance tomograph on a normal human neuronal cell culture (FNC-B4). After 15 min exposure cells showed dramatic changes of morphology: they formed vortexes of cells and exposed branched neurites featuring synaptic buttons. At the same time, thymidine incorporation and inositol lipid signaling were significantly reduced. Control (sham exposed) or non-neuronal cells (mouse leukemia, and human breast carcinoma cells) did not show any alteration following exposure. Endothelin-1 release from FNC-B4 cells was also dramatically reduced after 5 min exposure. However, PCR analysis of 12 DNA microsatellites selected as gauges of genome instability, did not reveal any alteration following exposure, thus ruling out a direct effect of the magnetic field on DNA stability. These data can be interpreted as a specific effect of the static magnetic field on human neuronal cells and are consistent with the induction of remodeling and differentiation; they demonstrate that fields below 0.5 T have significant biological effects on human neurons.

US$19.90

PMID: 10381007

DOI: 10.1016/s0304-3940(99)00362-6


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