EMF-Portal - The effect of weak 50 Hz magnetic fields on the number of free oxygen radicals in rat lymphocytes in vitro (2004)

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Medical/biological Study (experimental study)

The effect of weak 50 Hz magnetic fields on the number of free oxygen radicals in rat lymphocytes in vitro. med./biol.

By: Zmyslony M, Rajkowska E, Mamrot P, Politanski P, Jajte J
Published in: Bioelectromagnetics 2004; 25 (8): 607 - 612 ( open external web page

PubMed Entry , open external web page

Journal web site )

Aim of study (according to author)
The aim of the study was verification of the hypothesis that weak power frequency magnetic fields affected the number of free oxygen radicals in living cells and that these alterations could be qualitatively explained by the radical pair mechanism. Iron ions (FeCl₂) were used to stimulate the oxidation processes.

Endpoint

content of oxygen radicals in lymphocytes

Exposure
General category: magnetic field, 50/60 Hz (AC)

Field characteristics	Parameters
field 1: 50 Hz exposure duration: continuous for 60 min	magnetic flux density: 20 µT effective value
field 2: 50 Hz exposure duration: continuous for 60 min	magnetic flux density: 40 µT effective value
field 3: 50 Hz exposure duration: continuous for 60 min	magnetic flux density: 200 µT effective value

FIELD View further expo parameters

Exposed system:
intact cell/cell culture (in vitro)

Methods
Endpoint/Measurement parameters/Methodology

content of oxygen radicals (ROS) (fluorimetry)

investigated material: intact cell/cell culture (in vitro)

time of investigation: after exposure

Main outcome of study (according to author)
Only in the lymphocytes exposed at 40 µT magnetic field directed along the Earth's static magnetic field there was a decrease of fluorescence in comparison to non-exposed samples. This observation seems to confirm the hypothesis that low level power frequency magnetic field affects oxidative processes which occur in living cells and that this effect can be explained by the radical pair mechanism.

(Study character: medical/biological study, experimental study, full/main study)

Study funded by

State Committee for Scientific Research, Poland

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Glossary: AC, biological, cell culture, cells, effective value, endpoint, exposed, exposure, fluorescence, fluorimetry, full/main study, hypothesis, in vitro, ions, iron, lymphocytes, magnetic field, magnetic flux density, oxidation, oxidative, oxygen, power frequency, radical, ROS, static magnetic field

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