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EM-fields may
influence chemical toxicity effects
Increased Chemical Uptake in the Brain Associated with EMFs .
The toxicity of chemicals in the human system may actually be increased by certain electromagnetic fields. This was discovered by Canadian researchers working with magnetic resonance imaging (MRI) which was shown to increase the blood-brain barrier (BBB) permeability in rats. In a Swedish study, certain microwaves were found to also increase the BBB permeability. Therapeutic X-ray has also been seen to open the BBB.
(The blood-brain barrier (BBB) is a protective mechanism that prevents harmful chemicals from entering the brain where cell damage can occur.)
The Swedish researchers noted that " The intact BBB protects the brain from damage, whereas a dysfunctioning BBB, as induced by epileptic seizures or extreme hypertension allows influx of normally excluded hydrophilic molecules into the brain tissue. This might lead to cerebral oedema, increased intra-cranial pressure and in the worst case, irreversible brain damage.
By contrast, it was also found that variations in the EM fields could make a difference - some fields actually decreasing the BBB permeability."
It therefore has been established that the stability of the metabolic processes of the brain can be altered by exposure to certain EMFs. These same EMFs, to which we are often exposed on a daily basis. Ref: Prato, F.S : Willis, J.M.: et al. "Blood-Brain Permeability in Rats is altered by Exposure to Magnetic Fields Associated with Magnetic Resonance Imaging at 1.5T." Microscopy Research and Technique 27:528-534 Other references available.
The EMR SAFETY NETWORK-INTERNATIONAL, Phone 02 9540 3936
(c) 1997 Betty Venables