Prof. Olle Johansson responds to two questions:
Can exposure to Wi-Fi cause irreparable damage to DNA?
Prof. Olle Johansson is asked about irreversible sterility in mice.
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In response to ZAIZAIDevlin's comment:
ZAIZAIDevlin 1 day ago
1, We have been using radio for more than 5 generations but we are still here?
2, What mechanisms are there due to non thermal effects from microwave exposure that can damage a DNA strand (or any other molecule what so ever)? And why is Olle not explaining these mechanisms in any detail?
I expect this to be consored by the admin... Olle was awarded a prominent price in 2004, Obscurantist of the Year, by his scientific peers."
These are two very important issues, and I hereby try to answer them to the best of my capacity.
1. To begin with, radio has not been used for 5 human generations but in most countries only for one - or at most two - full generations. Actually, the radio and TV exposures of our populations have possibly left an unwanted mark on us. For instance, Dolk et al (1997) found that there was significant decline in skin and bladder cancer incidence among adults in England as distance from a frequency modulation (FM) broadcasting tower increased. In the second part of the study, these investigators reported a similar trend for individuals who lived various distances from FM and TV towers, but the effect was less pronounced than in the first study. Furthermore, cancer incidence has also been associated with proximity to television towers (Hocking et al. 1996). We have studied the incidence of melanoma which has been increasing steadily in many countries since 1960, but the underlying mechanism causing this increase remains elusive. The incidence of melanoma has been linked to the distance to frequency modulation (FM) broadcasting towers. Using exposure--time-specific incidence extracted from exposure and incidence data from 4 different countries, compared with reported age-specific incidence of melanoma, we could show a correlation between melanoma incidence and the number of locally receivable FM transmitters (Hallberg & Johansson 2002). Of course, further studies are needed to unfold the mechanisms and factors behind these observations.
2. When it comes to the mechanisms behind EMFs and their effects on various molecules, cells, tissue systems, organs and biological systems, including bacteria, plants, birds, mice, rats, etc., there is a wealth of yet completely established explanations, including effects on ionic channels, nitric oxide pathways, hormonal gateways, transmitter release and reuptake, apoptotic factors, calcium fluxes, immune-regulatory pathways, growth- and differentiation-related molecules, phosphorylation-dephosphorylation/cAMP/protein kinase A/DARPP-32, etc., and it would be very interesting to see these put to more scientific tests. Non-thermal effects are very common in biology and some of their mechanistic explanations have even been rewarded a Nobel Prize. When I and/or "ZaizaiDevlin" can explain the corresponding molecular events for the mechanisms relating to the current discussion about microwaves and health effects, then we may also come to meet His Majesty the King in Stockholm.
With my very best regards
The Experimental Dermatology Unit
Department of Neuroscience
171 77 Stockholm