Effect of the prenatal electromagnetic field exposure on cochlear nucleus neurons and oligodendrocytes in rats

Abstract

Overview

Electromagnetic radiation from electromagnetic field (EMF) sources, notably mobile phones, raises substantial health concerns. This study focuses on the prenatal period and its impact on the brainstem's auditory structures in rats.

Findings

• Studied effects of 900 MHz EMF exposure on the ventral cochlear nucleus development.
• Experiments conducted with Sprague-Dawley pregnant rats, divided into control and EMF-exposed groups.
• The EMF group experienced daily exposure to 900 MHz EMF from conception till birth.
• Assessment included auditory brainstem responses and histopathological examination of cochlear nucleus neurons and oligodendrocyte cells at multiple postnatal stages.
• Findings indicate increased structural damage and caspase-3 activity in the EMF group, though no significant differences in development stages or auditory latency were observed compared to controls.

Conclusion

While the study observed some increased cellular activity and damage due to EMF exposure, no overt harmful effects on overall development of cochlear nuclei were confirmed, suggesting that EMF exposure may not be as detrimental to prenatal development as previously considered in rats. Further research is needed to ascertain effects in human subjects and under different EMF conditions.