Study type: Medical/biological study (experimental study)

Influence of an Extremely Low Frequency Magnetic Field (ELF-EMF) on Antioxidative Vitamin E Properties in AT478 Murine Squamous Cell Carcinoma Culture In Vitro. med./bio.

Published in: Int J Toxicol 2010; 29 (2): 221-230

Aim of study (acc. to author)

To study the effects of extremely low frequency electromagnetic fields and antioxidant supplementation (vitamin E), alone or in combination, on antioxidant enzyme activities and level of lipid peroxidation in a carcinoma cell line in vitro.

Endpoint

Exposure

Exposure Parameters
Exposure 1: 3 Hz–3 kHz
Exposure duration: continuous for 16 min

Exposure 1

Main characteristics
Frequency 3 Hz–3 kHz
Type
Exposure duration continuous for 16 min
Exposure setup
Exposure source
  • MRS 2000 device
Parameters
Measurand Value Type Method Mass Remarks
magnetic flux density 0.11 mT - measured - -

Exposed system:

Methods Endpoint/measurement parameters/methodology

Investigated system:
Time of investigation:
  • after exposure

Main outcome of study (acc. to author)

Following vitamin E treatment, antioxidant enzyme activity was increased compared with the untreated control group. Extremely low frequency electromagnetic field exposure alone or in combination with vitamin E increased both superoxide dismutase enzyme activities and glutathione peroxidase enzyme activity in comparison to the control group.
The data suggest that extremely low frequency electromagnetic fields alter antioxidative enzyme activities in AT478 tumor cells. This study confirms the role of vitamin E in decreasing susceptibility to lipid peroxidation (decreased levels of malondialdehyde) in AT478 tumor cells.
Further studies should be conducted to determine the influence of extremely low frequency electromagnetic field exposure and vitamin E on cell proliferation processes and chemosensitivity of the cancer cells to commonly used cytostatics causing reactive oxygen species-mediated damage (i.e. high levels of glutathione peroxidase in cancer cells lead to cancer cell survival via effective removal of hydrogen peroxide).

Study character:

Study funded by

Related articles