Elevated residential exposure to power frequency magnetic field associated with greater average age at diagnosis for patients with brain tumors

Li, Chung‐Yi; Lin, Ruey S.; Sung, Fung‐Chang

doi:10.1002/bem.10095

Cited by 7 publications

(4 citation statements)

References 13 publications

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“…Case-control studies that are based on death certificates revealed an association between adult brain tumor mortality and living less than 50 m (odd ratios, OR 1.10 95%, CI 0.74-1.64) [66] or 100 m (OR 2.99, 95%, CI 0.86-10.40) [67] from power lines. In a recent work, significant associations were found between the cumulated duration living at <50 m to high voltage lines (50/60 Hz, 0.3 µT) and all brain tumors (OR 2.94; 95%CI 1.28-6.75) and glioma (OR 4.96; 95%CI 1.56-15.77) [65], confirming previous studies [35,[66][67][68][69]. Contrasting results have been reported for brain tumors in children.…”

Section: Brain Tumorsupporting

confidence: 73%

Magnetic Fields and Cancer: Epidemiology, Cellular Biology, and Theranostics

Maffei

2022

IJMS

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Humans are exposed to a complex mix of man-made electric and magnetic fields (MFs) at many different frequencies, at home and at work. Epidemiological studies indicate that there is a positive relationship between residential/domestic and occupational exposure to extremely low frequency electromagnetic fields and some types of cancer, although some other studies indicate no relationship. In this review, after an introduction on the MF definition and a description of natural/anthropogenic sources, the epidemiology of residential/domestic and occupational exposure to MFs and cancer is reviewed, with reference to leukemia, brain, and breast cancer. The in vivo and in vitro effects of MFs on cancer are reviewed considering both human and animal cells, with particular reference to the involvement of reactive oxygen species (ROS). MF application on cancer diagnostic and therapy (theranostic) are also reviewed by describing the use of different magnetic resonance imaging (MRI) applications for the detection of several cancers. Finally, the use of magnetic nanoparticles is described in terms of treatment of cancer by nanomedical applications for the precise delivery of anticancer drugs, nanosurgery by magnetomechanic methods, and selective killing of cancer cells by magnetic hyperthermia. The supplementary tables provide quantitative data and methodologies in epidemiological and cell biology studies. Although scientists do not generally agree that there is a cause-effect relationship between exposure to MF and cancer, MFs might not be the direct cause of cancer but may contribute to produce ROS and generate oxidative stress, which could trigger or enhance the expression of oncogenes.

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Section: Brain Tumorsupporting

confidence: 73%

Magnetic Fields and Cancer: Epidemiology, Cellular Biology, and Theranostics

Maffei

2022

IJMS

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“…This suggests that the effect could be due to shielding of the ambient weak extremely low frequency magnetic fields (ELF-MF) in the range of 10-240 Hz. As these ambient fields are primarily caused by electrical power distribution and use, and as they are generally less than 200 nT [Li et al, 2003], we decided to introduce ELF-MF of specific frequencies and amplitudes into the shielded environment. If these introduced ELF-MF abolished the induced analgesia, it would suggest that mice could sense such weak fields.…”

Section: Introductionmentioning

confidence: 99%

The detection threshold for extremely low frequency magnetic fields may be below 1000 nT‐Hz in mice

Prato

Desjardins-Holmes

Keenliside

et al. 2011

Bioelectromagnetics

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Previous experiments with mice have shown that a repeated 1 h daily exposure to an ambient magnetic field shielded environment induces analgesia (anti-nociception). This shielding reduces ambient static and extremely low frequency magnetic fields (ELF-MF) by approximately 100 times for frequencies below 120 Hz. To determine the threshold of ELF-MF amplitude that would attenuate or abolish this effect, 30 and 120 Hz magnetic fields were introduced into the shielded environment at peak amplitudes of 25, 50, 100 and 500 nT. At 30 Hz, peak amplitudes of 50, 100, and 500 nT attenuated this effect in proportion to the amplitude magnitude. At 120 Hz, significant attenuation was observed at all amplitudes. Exposures at 10, 60, 100, and 240 Hz with peak amplitudes of 500, 300, 500, and 300 nT, respectively, also attenuated the induced analgesia. No exposure abolished this effect except perhaps at 120 Hz, 500 nT. If the peak amplitude frequency product was kept constant at 6000 nT-Hz for frequencies of 12.5, 25, 50, and 100 Hz, the extent of attenuation was constant, indicating that the detection mechanism is dependent on the nT-Hz product. A plot of effect versus the induced current metric nT-Hz suggests a threshold of ELF-MF detection in mice at or below 1000 nT-Hz.

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“…Several studies of effects of magnetic fields on cell growth and proliferation have been carried out using mixture of in vitro models showed that acute exposure at 200mT decreased incorporation of [ 3 H] thymidine into the DNA of cancer cells (J. Wiskirchen, et al, 2000;C. Y. Li, et al, 2003).…”

Section: Introductionmentioning

confidence: 99%

Effects of Radiation Emitted From Base Stations on Bilirubin, Transaminases and Lipid Peroxidation in Exposed Rats

Achudume¹,

Onibere²,

Nwoha³

et al. 2012

EER

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Exposure to non-ionizing radiation emitted from base station have been reported to have some evidence of alterations in the activity of certain cells leading to unspecific health symptoms referred to as idiopathic environmental intolerance. The objective of the present study was to evaluate bilirubin, amino transferases, lipid peroxidation, total cholesterol and High density lipoprotein (HDL) Cholesterol in whole blood as indices of stress-related idiopathic environmental intolerance. Materials and Methods: Male rats were randomized and exposed to non-ionizing radiation emitted by base station between three mobile telephone masts for up to 60 days. Results: Results showed that at 40 days of exposure, there were no observable differences in the levels of alanine and aspartate transaminases. However, at 60 days of exposure, there were significant decreases in amino transaminases and did not cause any significant stress in bilirubin. The intracellular level of lipid peroxidation as measured by malondiadehyde in the liver and kidney decreased by 15% and 43%, respectively. There was no difference in level of cholesterol at 40 days of exposure while the increased levels at 60 days were not significant. Conclusion: The parameters evaluated indicate stress-related unspecific symptoms which may be associated with non-ionizing radiation emitted from base stations.

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Elevated residential exposure to power frequency magnetic field associated with greater average age at diagnosis for patients with brain tumors

Cited by 7 publications

References 13 publications

Magnetic Fields and Cancer: Epidemiology, Cellular Biology, and Theranostics

Magnetic Fields and Cancer: Epidemiology, Cellular Biology, and Theranostics

The detection threshold for extremely low frequency magnetic fields may be below 1000 nT‐Hz in mice

Effects of Radiation Emitted From Base Stations on Bilirubin, Transaminases and Lipid Peroxidation in Exposed Rats

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