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To study the effects of prenatal (in utero) exposure to WiFi signals on pregnancy outcome and some immunological parameters.
16 mated female mice were assigned to each of the following groups: cage control, sham exposed and microwave-exposed group. After delivery newborn mice were left to grow until 5 or 26 weeks of age when they were killed and immunological analyses were performed.
To maximize the possibility of finding an effect, animals were exposed to a very high SAR (4 W/kg) that exceeds any realistic scenario of human exposure.
ばく露時間: continuous for 2 h/day on 14 consecutive days, starting 5 days after mating, ending one day before expected delivery
|ばく露時間||continuous for 2 h/day on 14 consecutive days, starting 5 days after mating, ending one day before expected delivery|
|ばく露装置の詳細||commercial WiFi access point connected to a notebook via LAN and communicating with a PC using single channel transmission with channel 11; mice placed with the posterior part on the side of the field origin and maintained with the caudal axis parallel to the direction of field propagation; daily clockwise rotation of the eight animals inside the 120 cm long TEM cell|
|Sham exposure||A sham exposure was conducted.|
|SAR||4 W/kg||-||測定値||whole body||-|
No effects due to exposure to WiFi signals during pregnancy on mating success, number of newborns per dam and body weight at birth were found.
No differences due to exposure were found in spleen cell number, B cell frequency or antibody serum levels. When stimulated in vitro with LPS, B cells from all groups produced comparable amounts of IgM and IgG, and proliferated at a similar level. All these findings were consistently observed in the female and male offspring at both juvenile (5 weeks) and adult (26 weeks) ages. Stress-associated effects (e.g. comparison of cage control and restrained rats of the other two groups) as well as age- and/or sex-related differences were observed for several parameters.
In conclusion, the data did not show any effect on pregnancy outcome or any early or late effects on B cell differentiation and function due to prenatal exposure to WiFi signals.