32 healthy men with normal sperm parameters donated a sperm sample, respectively. First, each sample was incubated for 1 hour without exposure and subsequently the test parameters were measured for the first time. Subsequently, the samples were divided equally into two portions, A and B. Portions A of all participants were used as control, portions B were exposed.
|Repetition frequency||217 Hz|
|Distance between exposed object and exposure source||5 cm|
|Chamber||exposure and control samples were placed in two separate incubators (temperature at 27 °C)|
|Setup||exposure incubator was equipped with mobile phone as exposure source; mobile phone was placed 5 cm away from the samples and was turned on|
|Sham exposure||A sham exposure was conducted.|
No parameters are specified for this exposure.
DNA fragmentation and non-progressive motility were significantly increased, whereas progressive motility was significantly reduced in exposed sperm samples compared to control.
The authors conclude that an acute in vitro exposure of human sperms to a 900/1800 MHz GSM electromagnetic field influences sperm motility and DNA fragmentation and that further long-term investigations are needed to evaluate possible consequences for male fertility.