most popular sources for electromagnetic waves. However, there are many concerns regarding their biological effects on the body, especially the central nervous system. Therefore, the aim of this study was to evaluate the effects of cell phone radiation on histology of the cerebellar granular cells in the neonatal rat.

Materials and methods: We selected some Wistar rats. Then, we randomly divided their newborns into four groups. One of the groups was control and the other three were experimental groups. Groups I, II, and III were exposed to radiation from cell phone (with a distance of 10 cm from the rats) for a duration of 30 minutes, 2 hoursand 8 hours, respectively. After killing of the rats and preparing histological sections, we counted the granular cells of the cerebellum using Motic software. We measured the thickness of granular layers with Nickon software. Then, after data collection, statistical analysis was conducted using Tukey and Anova tests.

Results: Results showed that cell population in internal granular region significantly decreased in group III. Also, results indicated a reduction in the external granular layer thickness in group III. Furthermore, cerebellar weight to body weight ratio in group III was significantly reduced as compared with the other groups.