scholarly journals The effect of short-term electromagnetic fields caused by mobile phones on the electrical activity of alpha and beta brain waves

2020 ◽  
Vol 11 (9) ◽  
2012 ◽  
Vol 112 (2) ◽  
pp. 171-175 ◽  
Author(s):  
S. M. J. Mortazavi ◽  
M. S. Rouintan ◽  
S. Taeb ◽  
N. Dehghan ◽  
A. A. Ghaffarpanah ◽  
...  

2007 ◽  
Vol 405 (3) ◽  
pp. 559-568 ◽  
Author(s):  
Joseph Friedman ◽  
Sarah Kraus ◽  
Yirmi Hauptman ◽  
Yoni Schiff ◽  
Rony Seger

The exposure to non-thermal microwave electromagnetic fields generated by mobile phones affects the expression of many proteins. This effect on transcription and protein stability can be mediated by the MAPK (mitogen-activated protein kinase) cascades, which serve as central signalling pathways and govern essentially all stimulated cellular processes. Indeed, long-term exposure of cells to mobile phone irradiation results in the activation of p38 as well as the ERK (extracellular-signal-regulated kinase) MAPKs. In the present study, we have studied the immediate effect of irradiation on the MAPK cascades, and found that ERKs, but not stress-related MAPKs, are rapidly activated in response to various frequencies and intensities. Using signalling inhibitors, we delineated the mechanism that is involved in this activation. We found that the first step is mediated in the plasma membrane by NADH oxidase, which rapidly generates ROS (reactive oxygen species). These ROS then directly stimulate MMPs (matrix metalloproteinases) and allow them to cleave and release Hb-EGF [heparin-binding EGF (epidermal growth factor)]. This secreted factor activates the EGF receptor, which in turn further activates the ERK cascade. Thus this study demonstrates for the first time a detailed molecular mechanism by which electromagnetic irradiation from mobile phones induces the activation of the ERK cascade and thereby induces transcription and other cellular processes.


Author(s):  
Elia Valentini ◽  
Giuseppe Curcio

Nowadays nearly more than half of human beings on the planet are directly or indirectly exposed to an “evolutionary” novel physical agent: the electromagnetic fields (EMFs) emitted by cellular phones, base stations, as well as other types of wireless communication technologies. More than 10 years ago several studies reported that cognitive functions of human beings may have been altered while exposed to radiofrequency (RF) EMFs. Yet, the genuine effect of these non-ionizing radiations on human behaviour was not replicated by several other recent and more methodologically robust studies. Latest reviews and metanalyses confirmed the paucity of evidence in favour of psychomotor and cognitive effects of acute RF EMF exposure on human volunteers in well controlled laboratory settings. Thus, despite persisting concerns on potential biologic effects of acute RF EMFs irradiation, there is substantial lack of evidence that RF radiation can affect cognitive functions in humans.


Author(s):  
Giuseppe Curcio

The first studies on humans addressing cognitive functioning changes as a consequence of radiofrequency (RF) EMFs exposure date back to almost 20 years ago. The effects on human behavior showed in those pioneering works indicated an improvement of performance under the exposure to the signal, compared with sham exposure. These first and striking results were not fully replicated by subsequent studies that were characterized by a more methodological robustness and attention to exposure aspects. In accordance with this view, latest reviews and metanalyses have confirmed the paucity of evidence and the lack of reliability of psychomotor and cognitive effects of acute RF EMF exposure on human volunteers, particularly when assessed in well controlled laboratory settings. Thus, despite the public opinion about potential biologic effects of acute RF EMFs irradiation, it can be concluded that to date there is substantial lack of evidence about a negative influence of non-ionizing radiations on cognitive functioning in humans.


2008 ◽  
Vol 22 (8) ◽  
pp. 1113-1125 ◽  
Author(s):  
Caterina Cinel ◽  
Angela Boldini ◽  
Elaine Fox ◽  
Riccardo Russo

Sign in / Sign up

Export Citation Format

Share Document