The effects of the microwave oven on pregnant and newborn rat kidneys

Background: The increasing use of microwave radiation for industrial, scientific, medical and domestic purposes has resulted in growing concern about the biological effects of microwaves on man. Objectives: In this study, teratogenic effects of the microwave oven were investigated histologically on pregnant and newborn rat kidneys. Methods: Twenty-four pregnant Wistar- albino rats were separated into three groups (n=8), a control group (sham- exposed) and two experimental groups. The experimental gravid rats were confined in plexiglas cages which were placed next to the closed door of a microwave oven (power-output: 550W). In the first experimental group, the gravid rats were exposed to the microwave oven daily for 15 minutes whereas the gravid rats were exposed daily for 30 minutes in the second experimental group. Results: The physiological dilation of the renal tubules was observed in all dams. There was a positive correlation between the duration of exposure and the severity of necrosis. Necrosis of renal tubules together with normal glomeruli and stromal cells were seen in the first group of litters. Pronounced necrotic renal tissues and adrenal glands were observed only in the fitters of the second group. Conclusion: The teratogenic effects of the MW oven was observed especially in the second group of litters Nevertheless, pregnant users are not exposed to microwave radiation under the same conditions as in our experiment.