The study was undertaken to confirm the findings of previous studies (publication 922 and publication 9731) where miotic chromosomes of mice were chronically exposed to 9.45 GHz and 2.45 GHz microwaves. An increase in the frequency of chromosome exchanges as well as other cytogenetic effects were found. In addition, effects on spermatogonial stem cells were investigated.
|Modulation frequency||100 Hz|
Mean rectal temperature during exposure was only in the group exposed to 400 W/m² significantly increased (about 3°C). In groups killed 2-3 days after treatment (mainly meiotic exposure, 400 W/m²) frequencies of chromosome aberrations in spermatocytes showed no significant heterogeneity. Another group killed 30 days after 100 W/m² exposure (spermatogonial sampling) showed no significant increase in chromosome aberration frequency. There was a small but significant increase in sperm count with increasing power density in mice killed 12-13 days after exposure, but a non-significant one in those killed 41 days later. Effects were less severe than those reported previously (publication 922) with a similar radiation regime and were probably caused by temperature enhancement.