Effects of 1.5-GHz high-power microwave exposure on the reproductive systems of male mice

Abstract

Overview

High-power microwaves (HPMs) have been known to pose risks to various biological systems. This study focuses on the unclear effects of 1.5-GHz high-power microwaves on male reproductive systems.

Methodology

C57BL/6 male mice were exposed twice for 15 minutes to 1.5-GHz HPM fields with specific absorption rates (SAR) of 3, 6, and 12 W/kg. After exposure, assessments were made at several intervals ‒ 6 hours, 1 day, 3 days, and 7 days.

Findings

• No significant damage was observed in the testicular structure or spermatozoa.
• Serum testosterone and sperm motility parameters were assessed but showed no significant long-term changes.
• Initial increases in sperm motility parameters were likely stress responses, decreasing the next day before normalizing on the third day.

Conclusion

The research suggests that exposure to 1.5-GHz high-power microwaves under the specific experimental conditions did not cause significant damage to the reproductive systems of male mice. However, the initial changes in sperm motility warrant further investigation as they may suggest underlying stress responses to microwave exposures.