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Medical/biological study (experimental study)

Prolonged Exposure to Extremely Low Frequency Electromagnetic Field Affects Endocrine Secretion and Structure of Pancreas in Rats.

Published in: International Journal of Zoological Research 2011; 7 (4): 338-344

Aim of study (acc. to author)

To study the effect of long-term exposure to extremely low frequency magnetic fields on the endocrine secretory function and structure of pancreas in rats.
Background/further details: 45 male rats were divided in three equal groups: exposed group, sham-exposed group and control group.

Endpoint

Exposure

Exposure Parameters
Exposure 1: 50 Hz
Exposure duration: continuous for 24 h/day on 135 days
Exposure 1
Main characteristics
Frequency 50 Hz
Type
Exposure duration continuous for 24 h/day on 135 days
Exposure setup
Exposure source
Chamber 100 cm x 100 cm x 35 cm open wooden box as exposure chamber
Sham exposure A sham exposure was conducted.
Parameters
Measurand Value Type Method Mass Remarks
magnetic flux density 1 mT - measured - -
Exposed system:

Methods Endpoint/measurement parameters/methodology

Investigated material:
Investigated organ system:
Time of investigation:
  • after exposure

Main outcome of study (acc. to author)

The results showed that the insulin level of the exposed group was increased which was associated with an increased size of pancreatic Langerhans islets. The glucose level was decreased but the glucagon level did not significantly change.
The authors conclude that long-term exposure to extremely low frequency magnetic fields affects insulin secretion by influencing the structure of pancreas.
Study character:

Study funded by

  • Shiraz University of Medical Sciences, Shiraz, Iran

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