Wetenschappelijk nieuws

Amerikaanse studie vindt toename van welbepaalde hersentumoren

Gegevens
Gepubliceerd: woensdag 27 augustus 2014 08:11

 

Samenvatting van de studie op PubMed. De auteurs menen dat mogelijk een omgevingsfactor aan de basis ligt van de stijging.

 

Frontal & temporal lobe gliobastoma incidence increased in the US from 1992-2006

 

Zada et al. Incidence trends in the anatomic location of primary malignant brain tumors in the United States: 1992-2006. World Neurosurg. 2012 Mar-Apr;77(3-4):518-24.

 

"CONCLUSIONS: Data from 3 major cancer registries demonstrate increased incidences of GBMs in the frontal lobe, temporal lobe, and cerebellum, despite decreased incidences in other brain regions. Although this may represent an effect of diagnostic bias, the incidence of both large and small tumors increased in these regions. The cause of these observed trends is unknown."

 

"Although these results may represent an effect of diagnostic bias or refinements in anatomical subsite coding, an environmental cause of the increases of high grade frontal and temporal lobe malignancies cannot be ruled out. Further studies are indicated to establish whether a correlation with environmental factors exists." (p. 524)

 

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Influence of Electric, Magnetic, and Electromagnetic Fields on the Circadian System: Current Stage of Knowledge

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Gepubliceerd: donderdag 21 augustus 2014 12:04

 

Abstract - One of the side effects of each electrical device work is the electromagnetic field generated near its workplace. All organisms, including humans, are exposed daily to the influence of different types of this field, characterized by various physical parameters. Therefore, it is important to accurately determine the effects of an electromagnetic field on the physiological and pathological processes occurring in cells, tissues, and organs. Numerous epidemiological and experimental data suggest that the extremely low frequency magnetic field generated by electrical transmission lines and electrically powered devices and the high frequencies electromagnetic radiation emitted by electronic devices have a potentially negative impact on the circadian system. On the other hand, several studies have found no influence of these fields on chronobiological parameters. According to the current state of knowledge, some previously proposed hypotheses, including one concerning the key role of melatonin secretion disruption in pathogenesis of electromagnetic field induced diseases, need to be revised. This paper reviews the data on the effect of electric, magnetic, and electromagnetic fields on melatonin and cortisol rhythms—two major markers of the circadian system as well as on sleep. It also provides the basic information about the nature, classification, parameters, and sources of these fields.

 

(...) The idea that some individuals are more sensitive to the electromagnetic field than others, due to genetic background or/and current health status, appears very attractive and should be a subject of further studies.

 

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Neurophysiologic effects of radiofrequency and microwave radiation

Gegevens
Gepubliceerd: dinsdag 22 juli 2014 07:00

 

"This classic paper by W. Ross Adey, M.D., one of the pioneers in microwave radiation health effects research, was published in 1979. Many years before ICNIRP adopted thermal-based regulatory standards, we knew that non-thermal levels of microwave radiation had significant effects on the brain. Our government chose to ignore this research."

Open access paper (PDF)

 

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A cross-sectional case control study on genetic damage in individuals residing in the vicinity of a mobile phone base station

Gegevens
Gepubliceerd: maandag 21 juli 2014 14:32

 

PubMed

 

"(...) The linear regression analysis further revealed daily mobile phone usage, location of residence and power density as significant predictors of genetic damage. The genetic damage evident in the participants of this study needs to be addressed against future disease-risk, which in addition to neurodegenerative disorders, may lead to cancer."

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Why children absorb more microwave radiation than adults: The consequences

Gegevens
Gepubliceerd: maandag 21 juli 2014 09:35

 

Gepubliceerd in the Journal of Microscopy and Ultrastructure.

Highlights

• Children absorb more microwave radiation (MWR) than adults.
• MWR is a Class 2B (possible) carcinogen.
• The fetus is in greater danger than children from exposure to MWR.
• The legal exposure limits have remained unchanged for decades.
• Cellphone manuals warnings and the 20 cm rule for tablets/laptops violate the “normal operating position” regulation.

Abstract

 

Computer simulation using MRI scans of children is the only possible way to determine the microwave radiation (MWR) absorbed in specific tissues in children. Children absorb more MWR than adults because their brain tissues are more absorbent, their skulls are thinner and their relative size is smaller. MWR from wireless devices has been declared a possible human carcinogen. Children are at greater risk than adults when exposed to any carcinogen. Because the average latency time between first exposure and diagnosis of a tumor can be decades, tumors induced in children may not be diagnosed until well into adulthood. The fetus is particularly vulnerable to MWR. MWR exposure can result in degeneration of the protective myelin sheath that surrounds brain neurons. MWR-emitting toys are being sold for use by young infants and toddlers. Digital dementia has been reported in school age children. A case study has shown when cellphones are placed in teenage girls’ bras multiple primary breast cancer develop beneath where the phones are placed. MWR exposure limits have remained unchanged for 19 years. All manufacturers of smartphones have warnings which describe the minimum distance at which phone must be kept away from users in order to not exceed the present legal limits for exposure to MWR. The exposure limit for laptop computers and tablets is set when devices are tested 20 cm away from the body. Belgium, France, India and other technologically sophisticated governments are passing laws and/or issuing warnings about children's use of wireless devices.

 

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Potential Wireless Health Effects - Calcium Efflux

Gegevens
Gepubliceerd: donderdag 03 juli 2014 08:14

 

emfwise.com - Calcium Efflux

 

Wireless radiation has been shown to remove calcium ions from membrane surfaces. An experiment (Blackman et al) found calcium ion efflux from chick-brain tissue at certain field intensities. This calcium efflux phenomenon may have impacts in multiple systems including the neurological and cardiovascular system. For example, contractions in the heart are influenced by calcium. Neurotransmitters in the brain are also influenced by calcium.

 

We can further gather some insight into the importance of calcium, and the disruption that calcium efflux might have, by studying the delicate balance between Magnesium and Calcium in the body. Magnesium helps dissolve calcium and maintain calcium levels in the blood, the excess of which could effect calcification and disrupt cell function. Additionally, magnesium allows just enough calcium for electrical transmission along the nerves. Magnesium and calcium also work in opposite roles in the relaxation vs. contraction of muscles. Magnesium plays an important role as well as co-factor in chemical reactions, in the synthesis of proteins, and the the production of energy. Finally, Magnesium is also important in the detoxification process. According to The Magnesium Miracle, magnesium deficiency and calcium excess is potentially related to multiple conditions, including neurological, heart, infertility, osteoporosis, kidney stones, bowel disease, chronic fatigue syndrome, asthma, cramping, depression, and more. Perhaps some of the symptoms of microwave sickness are related to the calcium efflux effect.

 

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Studie in Nature: elektromagnetische velden verstoren oriëntatievermogen vogels

Gegevens
Gepubliceerd: woensdag 25 juni 2014 07:41

 

PubMed - "The disruptive effect of radiofrequency electromagnetic fields is not confined to a narrow frequency band and birds tested far from sources of electromagnetic noise required no screening to orient with their magnetic compass. These fully double-blinded tests document a reproducible effect of anthropogenic electromagnetic noise on the behaviour of an intact vertebrate."

 

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