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Article Publish Status: FREE
Abstract Title:

Low-intensity electromagnetic fields induce human cryptochrome to modulate intracellular reactive oxygen species.

Abstract Source:

PLoS Biol. 2018 10 ;16(10):e2006229. Epub 2018 Oct 2. PMID: 30278045

Abstract Author(s):

Rachel M Sherrard, Natalie Morellini, Nathalie Jourdan, Mohamed El-Esawi, Louis-David Arthaut, Christine Niessner, Francois Rouyer, Andre Klarsfeld, Mohamed Doulazmi, Jacques Witczak, Alain d'Harlingue, Jean Mariani, Ian Mclure, Carlos F Martino, Margaret Ahmad

Article Affiliation:

Rachel M Sherrard

Abstract:

Exposure to man-made electromagnetic fields (EMFs), which increasingly pollute our environment, have consequences for human health about which there is continuing ignorance and debate. Whereas there is considerable ongoing concern about their harmful effects, magnetic fields are at the same time being applied as therapeutic tools in regenerative medicine, oncology, orthopedics, and neurology. This paradox cannot be resolved until the cellular mechanisms underlying such effects are identified. Here, we show by biochemical and imaging experiments that exposure of mammalian cells to weak pulsed electromagnetic fields (PEMFs) stimulates rapid accumulation of reactive oxygen species (ROS), a potentially toxic metabolite with multiple roles in stress response and cellular ageing. Following exposure to PEMF, cell growth is slowed, and ROS-responsive genes are induced. These effects require the presence of cryptochrome, a putative magnetosensor that synthesizes ROS. We conclude that modulation of intracellular ROS via cryptochromes represents a general response to weak EMFs, which can account for either therapeutic or pathological effects depending on exposure. Clinically, our findings provide a rationale to optimize low field magnetic stimulation for novel therapeutic applications while warning against the possibility of harmful synergistic effects with environmental agents that further increase intracellular ROS.

Study Type : Review
Additional Links
Adverse Pharmacological Actions : Oxidant : CK(122) : AC(48)

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