Pathological changes associated with experimental 900-MHz electromagnetic wave exposure in rats

The aim of this study was to determine a possible relationship between whole-body 900-MHz Global System for Mobile Communication-like electromagnetic field (GSM-EMF) exposure and pathological changes in vital organs of Sprague–Dawley rats. Twenty adult male rats were used in four equal independent groups—control (without EMF) and low-, moderate-, and high-exposure groups—according to the time of exposure to EMF (1, 2, and 4 h). The exposure was performed for 30 consecutive days. Tissue samples of the heart, liver, and left kidney were collected and fixed in 10 % buffered formalin for histopathological examination. Some pathological lesions, especially in the kidney (congestion and inflammation) were seen. Our results demonstrate that the use of GSM-like EMF at these intensities and duration can induce pathological lesions in the heart, liver, or kidney, but these are not EMF specific.