In situ detection of gliosis and apoptosis in the brains of young rats exposed in utero to a Wi-Fi signal

Pregnant rats were daily whole-body exposed or sham-exposed to a Wi-Fi signal in a free-running reverberation chamber at 0, 0.08, 0.4, and 4 W/kg for 2 h during the last 2 weeks of gestation (5 days/week). Following this in utero exposure, the pups were divided into two groups and 1 group continued exposure for 5 weeks after birth. Several brain areas were examined for gliosis and apoptotic cells. Comparison among sham and exposed groups revealed no significant differences, suggesting that in utero and post-natal exposure to Wi-Fi did not damage the brains of the young rats.