2023-04-20 17:26:52
Two new studies investigated the effect of WLAN radiation on the development of tumors and came to the uncomfortable conclusion that WLAN radiation actually has a cancer-promoting effect, at least in cell and animal models.
Exposure to artificial high-frequency electromagnetic fields has increased significantly in recent years due to advancing technological developments. There is significant interest and controversy regarding the biological and health effects associated with the use of modern wireless devices that emit radio frequency electromagnetic waves. Current exposure limits for radiofrequency electromagnetic fields are set to protect biological tissues from “thermal effects” associated with exposure to radiofrequency radiation. However, “non-thermal effects” are not taken into account. However, numerous studies show a connection between long-term exposure to frequencies from WLAN networks and oxidative stress, male infertility, neuropsychiatric diseases and damage to DNA.1
Researchers have now tested the “non-thermal effect” of low-level indoor exposure to WiFi radiation on Drosophila flies.1 The flies were exposed to a constant 2.4 GHz frequency. The results show that the radiation led to an extensive decondensation of the heterochromatin and thus to the loss of epigenetic structures. In addition, the results suggest that WLAN radiation can lead to reactive oxygen species (ROS) accumulation and induce both genomic instability and behavioral abnormalities. Furthermore, it was shown that WLAN radiation can act synergistically with the oncogene RasV12 to promote tumor progression and invasion. The authors summarize that the high-frequency radiation emitted by WLAN devices might have genotoxic effects on Drosophila. These results set the stage for further research into WLAN radiation on living organisms.
In a second study, the effect of radiofrequency electromagnetic fields on circadian rhythm genes in a colon cancer cell line was investigated.2 The circadian system is essential to the day-night cycle; the genes involved can influence the cell cycle. Alterations in the genes that regulate the circadian rhythm have been linked to the development of cancer. An important player in this system is miRNA-34a. This micro-RNA regulates multiple genes of the circadian system and is classified as a tumor suppressor. In the study by Olejárová et al. it might be shown that colorectal cancer cells exposed to a 2.4 GHz frequency for 24 hours showed an altered miRNA-34a-induced gene expression. Five out of seven investigated miRNA-34a-regulated genes were significantly altered by WLAN radiation. In addition, the migration and proliferation of the cells was influenced by the WLAN radiation. The authors conclude that in cells that are exposed to high-frequency radiation for a longer period of time, the otherwise typical tumor suppressor miRNA-34a plays a neutral or slightly carcinogenic role.
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