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Medical/biological Study (experimental study)

Biological and morphological effects on the reproductive organ of rats after exposure to electromagnetic field. med./biol.

By: Ozguner M, Koyu A, Cesur G, Ural M, Ozguner F, Gokcimen A, Delibas N
Published in: Saudi Med J 2005; 26 (3): 405 - 410 ( open external web page full article, open external web page PubMed Entry , open external web page Journal web site )

Aim of study (according to author)
To study the biological and morphological effects of 900 MHz radiofrequency electromagnetic fields on rat testis.


General category: mobile phone

Field characteristicsParameters
900 MHz
continuous wave (CW)
exposure duration: repeated daily exposure, 30 min/day, 5 days/week for 4 weeks
power: 2 W peak value
power flux density: 1 mW/cm² mean value (? 0.4 mW/cm?)

FIELD View further expo parameters

Exposed system:
animal (species/strain): rat/Sprague-Dawley
whole body exposure

Endpoint/Measurement parameters/Methodology

investigated material: tissue slices (in vitro), isolated organ (in vitro), blood samples
investigated organ system: reproductive system

time of investigation: after exposure

Main outcome of study (according to author)
The weight of testis, testicular biopsy score count (Johnson score) and the percentage of interstitial tissue to the entire testicular tissue were not significantly different in the exposed group compared to the control group. However, the diameter of the seminiferous tubules and the mean height of the germinal epithelium were significantly decreased in exposed animals. There was a significant decrease in serum total testosterone level in exposed rats, but there was an insignificant decrease in plasma luteinizing hormone and follicle stimulating hormone levels in the exposed group compared to the control group.
The authors concluded that the biological and morphological effects resulting from 900 MHz radiofrequency electromagnetic field exposure lends no support to suggestions of adverse effect on spermatogenesis and on germinal epithelium. Testicular morphologic alterations may possibly be due to hormonal alterations.

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

Study funded by

  • not stated/none

Related articles i
Glossary: animals, biological, biopsy, blood, control group, CW, electromagnetic field, endocrine, endpoint, epithelium, exposed, exposure, follicle stimulating hormone, full/main study, histologic, histopathological, hormonal, interstitial, in vitro, luteinizing hormone, mean, MHz, mobile phone, morphologic, organ, plasma, power, power flux density, radiofrequency, radioimmunoassay, rat/Sprague-Dawley, rats, reproductive, reproductive system, seminiferous tubules, serum, significant, species, spermatogenesis, strain, testis, testosterone, tissue, whole body exposure
Exposure: mobile phone

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