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Cells haywire in electromagnetic field?


Cells haywire in electromagnetic field electromagnetic field

Property of space caused by the motion of an electric charge. A stationary charge produces an electric field in the surrounding space. If the charge is moving, a magnetic field is also produced. A changing magnetic field also produces an electric field.
?

Electromagnetic fields may interfere with the electrical chitchat between cells in the body -- and cooperate with carcinogens Carcinogens
Substances in the environment that cause cancer, presumably by inducing mutations, with prolonged exposure.

Mentioned in: Colon Cancer, Rectal Cancer
 to disrupt normal regulation of cell growth and promote cancer development, says W. Ross Adey of Loma Linda Loma Linda may refer to:
  • Loma Linda, California, a city in San Bernardino County, United States
  • Loma Linda Academy, a K-12 college preparatory WASC-accredited school run by the Seventh-day Adventist Church
 (Calif.) University. By studying the way cells "whisper together" using electrical messages, Adey and his co-workers are trying to explain why some studies link certain types of cancer to electromagnetic exposure (SN: 2/14/87, p.107). Because the signals passed between cells are essential for regulating cell growth, altering these signals may result in the out-of-control growth of cancer, says Adey.

Across the thin membranes surrounding cells is an electrical gradient called the membrane potential membrane potential
n.
The potential inside a cell membrane measured relative to the fluid just outside; it is negative under resting conditions and becomes positive during an action potential.
. With a strength of about 0.1 volt (the equivalent of 200,000 volts per inch), the membrane potential acts as an electrical barrier against the outward and inward flow of signals. Receptors on cell surfaces are thus needed to facilitate message transfer across membranes. In addition, says Adey, the "little fluid gutters" between cells have their own electrical gradients. Based on his own studies and those of other researchers, Adey concludes that these electrical gradients may be changed by certain powerline and microwave fields. The negatively charged Adj. 1. negatively charged - having a negative charge; "electrons are negative"
electronegative, negative

charged - of a particle or body or system; having a net amount of positive or negative electric charge; "charged particles"; "a charged battery"
 surface receptors that permit day-to-day signal transfer are sensitive to minute changes in both electrical and chemical signals, says Adey.

Changes caused by electromagnetic fields are not them selves the first step in cancer, says Adey, who uses the standard initiation-promotion model of cancer to explain how the fields and chemical carcinogens may work together. He says that carcinogens probably serve as initiators by damaging cellular DNA DNA: see nucleic acid.
DNA
 or deoxyribonucleic acid

One of two types of nucleic acid (the other is RNA); a complex organic compound found in all living cells and many viruses. It is the chemical substance of genes.
, but that disorganized dis·or·gan·ize  
tr.v. dis·or·gan·ized, dis·or·gan·iz·ing, dis·or·gan·iz·es
To destroy the organization, systematic arrangement, or unity of.
 cell growth in tumor formation is prompted by later events -- which include exposure to electromagnetic fields. According to Adey, the Loma Linda research takes a different approach to cancer formation by studying "atomic rather than molecular levels of tissue organization and physical rather than chemical processes."
COPYRIGHT 1988 Science Service, Inc.
No portion of this article can be reproduced without the express written permission from the copyright holder.
Copyright 1988, Gale Group. All rights reserved. Gale Group is a Thomson Corporation Company.

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Title Annotation:reseach on relationship between electromagnetism and cancer
Author:Edwards, Diane D.
Publication:Science News
Date:Apr 2, 1988
Words:320
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