Medical/biological Study (experimental study)
Prolonged Exposure to Extremely Low Frequency Electromagnetic Field Affects Endocrine Secretion and Structure of Pancreas in Rats. med./biol. By: Gholampour F, Javadifar TS, Owji SM, Bahaoddini A
Published in: International Journal of Zoological Research 2011; 7 (4): 338 - 344 ( full article, Journal web site )
Aim of study (according 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.
45 male rats were divided in three equal groups: exposed group, sham-exposed group and control group.
- endocrine changes: plasma concentrations of insulin, glucagon and glucose; changes in pancreas structure
General category: magnetic field, low frequency field, 50/60 Hz (AC)
| 50 Hz |
exposure duration: continuous for 24 h/day on 135 days
|magnetic flux density: 1 mT |
FIELD View further expo parameters
animal (species/strain): rat/Wistar
whole body exposure
Methodsinvestigated material: isolated organ (in vitro), blood samples, pancreas samples
investigation on living organism
investigated organ system: endocrine system
time of investigation: after exposure
Main outcome of study (according 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: medical/biological study, experimental study, full/main study)
Study funded by
- Shiraz University of Medical Sciences, Shiraz, Iran
- Lotfi A et al. (2011): Effects of exposure to constant or pulsed 50 Hz magnetic fields on body weight...
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Glossary: 50/60 Hz, AC, animal, biological, blood, control group, endocrine, endocrine system, endpoint, exposed, exposure, extremely low frequency, full/main study, glucagon, glucose, histopathological, insulin, in vitro, Langerhans islets, light microscopy, low frequency field, magnetic fields, magnetic flux density, morphological, organ, organism, pancreas, plasma, radioimmunoassay, rat/Wistar, rats, secretion, sham-exposed, significantly, species, strain, whole body exposure
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