Mechanism for action of electromagnetic fields
on cells (3/11/02)
Tramès per Klaus Rudolph (Citizens'
Mechanism for action
of electromagnetic fields on cells
Panagopoulos D, Karabarbounis A, Margaritis L.
Department of Cell Biology and Biophysics, Faculty of Biology,
University of Athens, Panepistimiopolis, GR-15784, Athens, Greece
A biophysical model for the
action of oscillating electric fields on cells, presented by us before
[Biochem. Biophys. Res. Commun. 272(3) (2000) 634-640], is extended
now to include oscillating magnetic fields as well, extended to include
the most active biological conditions, and also to explain why pulsed
electromagnetic fields can be more active biologically than continuous
According to the present theory, the low frequency fields are the
most bioactive ones. The basic mechanism is the forced-vibration of
all the free ions on the surface of a cell's plasma membrane, caused by
an external oscillating field.
We have shown that this coherent vibration of electric charge is able
to irregularly gate electrosensitive channels on the plasma membrane
and thus cause disruption of the cell's electrochemical balance and function
[Biochem. Biophys. Res. Commun. 272(3) (2000) 634-640]. It seems
that this simple idea can be easily extended now and looks very likely
to be able to give a realistic basis for the explanation of a wide
range of electromagnetic field bioeffects.
Source: Biochem Biophys Res Commun 2002 Oct 18;298(1):95
for action of oscillating electric fields on cells
Panagopoulos DJ, Messini N, Karabarbounis A, Philippetis
LH. Department of Cell Biology and Biophysics, Athens University, Greece.
The biological effects of electromagnetic
fields have seriously concerned the scientific community and the public
as well in the past decades as more and more evidence has accumulated
about the hazardous consequences of so-called "electromagnetic pollution."
This theoretical model is based on the simple hypothesis that an oscillating
external electric field will exert an oscillating force to each
of the free ions that exist on both sides of all plasma membranes and
that can move across the membranes through transmembrane proteins.
This external oscillating force will cause a forced vibration of each
When the amplitude of the ions' forced vibration transcends some
critical value, the oscillating ions can give a false signal for opening
or closing channels that are voltage gated (or even mechanically
gated), in this way disordering the electrochemical balance of the plasma
membrane and consequently the whole cell function.
Source: Biochem Biophys Res Commun 2000 Jun 16;272(3):634-40
Informant: Reinhard Rückemann
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