Dasdag S, Akdag MZ, Ayyildiz O, Demirtas OC, et al. (2000)

Twelve female rats were exposed to 890 - 915 MHz, modulation frequency 217 Hz, during pregnancy. The exposure was for 1 minute on three occasions during a two-hour period each day. The exposed rats were compared with sham-exposed animals and with male rats that were also exposed for 1 month. The number of offspring per pregnant rat and the birth weight of offspring in the sham and exposed groups were measured. Blood parameters of all male rats and six female rats from the exposed and sham groups were examined immediately after the last exposure. The offspring of the remaining female rats (six in each group) continued to be observed for weight gain. Later these same rats were impregnated to determine the birth weight and white blood counts of the second-generation offspring.

None of the blood parameters was significantly altered in any of the generations of rats. The average number of offspring per pregnant rat showed no difference between exposed and sham groups. The birth weight of the offspring in the exposed group was significantly lower than the sham group This weight decrease was temporary and the animals had normal weight by 3 months. The authors felt that the weight decrease could be due either to the radiation or a nonspecific stress reaction.

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