Weak magnetic fields alter stem cell-mediated growth.

Sci Adv 2019 01 30;5(1):eaau7201. Epub 2019 Jan 30.

Department of Biological Sciences, Western Michigan University, Kalamazoo, MI 49008, USA.

Biological systems are constantly exposed to electromagnetic fields (EMFs) in the form of natural geomagnetic fields and EMFs emitted from technology. While strong magnetic fields are known to change chemical reaction rates and free radical concentrations, the debate remains about whether static weak magnetic fields (WMFs; <1 mT) also produce biological effects. Using the planarian regeneration model, we show that WMFs altered stem cell proliferation and subsequent differentiation via changes in reactive oxygen species (ROS) accumulation and downstream heat shock protein 70 (Hsp70) expression. These data reveal that on the basis of field strength, WMF exposure can increase or decrease new tissue formation in vivo, suggesting WMFs as a potential therapeutic tool to manipulate mitotic activity.

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Source
http://dx.doi.org/10.1126/sciadv.aau7201DOI Listing
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6353618PMC
January 2019

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