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Medical/biological Study (experimental study)

Effects of exposure to a mobile phone on testicular function and structure in adult rabbit. med./biol.

By: Salama N, Kishimoto T, Kanayama HO
Published in: Int J Androl 2010; 33 (1): 88 - 94 ( open external web page PubMed Entry , open external web page Journal web site )

Aim of study (according to author)
To study the accumulating effects of exposure to mobile phone emission (12 weeks, 8 h daily, standby position) on testicular function and structure of rabbits.
Background/further details:
24 adult male rabbits were randomly and equally divided into three groups: 1) mobile phone exposure, 2) sham exposure group, and 3) cage control group. Semen analysis and sperm function tests were conducted weekly.

Endpoint

Exposure
General category: digital mobile phone, GSM

Field characteristicsParameters
800 MHz
pulsed (PW)
exposure duration: repeated daily exposure, 8 h/day, for 12 weeks		electric field strength: 2.92 V/m mean value (at 0.5 cm)
electric field strength: 0.487 V/m mean value (at the most distant region inside the cage)
SAR: 0.43 W/kg average over mass (whole body) (FDTD)

FIELD View further expo parameters

Exposed system:
animal (species/strain): rabbit/New Zealand White
partial body exposure: testes

Methods
Endpoint/Measurement parameters/Methodology

investigated material: isolated bio./chem. substance (in vitro), DNA/RNA (in vitro), intact cell/cell culture (in vitro), tissue slices (in vitro), isolated organ (in vitro), semen (ejaculate); sperms; blood samples
investigation on living organism
investigated organ system: reproductive system

time of investigation: before, during and after exposure

Main outcome of study (according to author)
Compared to the control groups (groups 2 and 3) a decrease in the sperm concentration appeared in the exposure group at week 6. This became statistically significant at week 8. There was no difference in motile sperm population amongst the three groups until week 10 when it declined significantly in the exposure and sham exposure groups (with more significant decline in the mobile phone exposed animals). Histological examination showed also a significant decrease in the diameter of seminiferous tubules in the mobile phone exposure group versus the two control groups. The other study parameters did not show any difference.
In conclusion, low intensity pulsed radiofrequency emitted by a conventional mobile phone kept in the standby position could affect the testicular function and structure in adult rabbits.

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

Study funded by

  • not stated

Published comments on this article:Related articles i
Glossary: accumulating, acridine orange, adult, animals, biological, blood, cell, cell culture, chromatin, control groups, digital, DNA, electric field strength, emitted, endocrine, endpoint, eosin, epididymal, exposed, exposure, FDTD, full/main study, GSM, haematoxylin-eosin stain, haemocytometer, histological, histopathology, in vitro, light microscopy, mean value, mobile phone, morphology, nigrosin, organ, osmotic, partial body exposure, pH, phase contrast microscopy, population, pulsed, PW, radiofrequency, radioimmunoassay, randomly, rectal temperature, reproductive, reproductive system, RNA, SAR, semen, seminiferous tubules, sham exposure, significant, species, sperm, sperm motility, standby, statistically, strain, testicular, testosterone, thermoregulation, tissue, viability

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