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

Abstract

Overview

Electromagnetic radiation from electromagnetic field sources, particularly mobile phones, has posed longstanding health concerns. The study assesses the impact of 900 MHz electromagnetic field (EMF) exposure during the prenatal period on rat cochlear nucleus development.

Methodology

• In the investigation, two groups of pregnant Sprague-Dawley rats were used: a control group and an EMF-exposed group.
• The EMF group was exposed to 900 MHz EMF daily until birth.
• Postnatal assessments of auditory brainstem responses were conducted on the 13th day, aligning with the onset of hearing.
• Euthanasia was carried out on days 7, 10, 15, and 30, investigating the structural integrity of cochlear nuclear neurons and oligodendrocytes.

Findings

Significant structural damage and increased caspase-3 activity were noted in the EMF-exposed group compared to the controls during the early postnatal period. However, no consistent differences were evident across later stages.

Conclusion

Despite the initial adverse findings, the study concludes there are no lasting harmful effects on the development of the ventral cochlear nucleus in the rat model exposed to 900-MHz EMF from mobile phones during prenatal stages.