Study type: Medical/biological study (experimental study)

Subacute exposure to 50-Hz electromagnetic fields affect prenatal and neonatal mice's motor coordination . med./bio.

Published in: J Appl Phys 2012; 111 (7): 07B314-1-07B314-3

Aim of study (acc. to author)

To investigate the effects of extremely low frequency magnetic fields on the motor coordination of prenatally and neonatally exposed mice.

Background/further details

Mice were divided into three groups (n=7-18 per group): 1.) exposure of dams and offspring for 7 days after birth, 2.) exposure of dams during the last 7 days of pregnancy and 3.) control group. Motor coordination experiments were performed with the offspring in the age of 12 to 13 weeks.

Endpoint

Exposure

Exposure Parameters
Exposure 1: 50 Hz
Exposure duration: continuous for 7 days

Exposure 1

Main characteristics
Frequency 50 Hz
Type
Waveform
Exposure duration continuous for 7 days
Exposure setup
Exposure source
Setup each of the coils was 40 cm in diameter, had 154 turns, and the coils were separated at a distance of 20 cm
Sham exposure A sham exposure was conducted.
Additional info magnetic force lines were parallel to the horizontal component of the local geomagnetic field
Parameters
Measurand Value Type Method Mass Remarks
magnetic flux density 1 mT spatial average measured - -

Exposed system:

Methods Endpoint/measurement parameters/methodology

Investigated system:
Time of investigation:
  • after exposure

Main outcome of study (acc. to author)

The motor coordination of mice that were neonatally exposed to an extremely low frequency magnetic field was significantly impaired compared to the control group. However, no significant difference was observed between the prenatally exposed group and the control group.

Study character:

Study funded by

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