The effect of Wi-Fi on elastic and collagen fibres in the blood vessel wall of the chorioallantoic membrane

Abstract

Overview

This study investigates the impact of Wi-Fi radiation on the structural fibers that compose large blood vessel walls in the chorioallantoic membrane (CAM) of chicken embryos. Experimental groups were exposed continuously (24 hours per day) to Wi-Fi at a frequency of 2.4 GHz and an average power density of 300 μW/m² for either 9 or 14 embryonic days.

Findings

• Traditional haematoxylin and eosin staining did not reveal significant structural differences in large blood vessel walls between control and Wi-Fi-exposed embryos.
• Special staining techniques, however, demonstrated marked changes in fibrous vessel wall components after Wi-Fi exposure:
• The optical density (OD) of elastic fibers significantly decreased from 0.294 ± 0.025 (control) to 0.197 ± 0.022 (Wi-Fi) at day 9, and from 0.706 ± 0.028 (control) to 0.271 ± 0.031 (Wi-Fi) at day 14.
• The OD of collagen fibers increased at day 9 (from 0.178 ± 0.023 to 0.334 ± 0.020), but showed a significant decrease by day 14 (from 0.418 ± 0.033 to 0.327 ± 0.031).

Conclusion

The results of this open access study indicate that Wi-Fi can alter the balance and composition of fibrous elements in the large vessel wall, potentially playing a role in the development of cardiovascular disorders. This supports concerns that electromagnetic fields such as those from Wi-Fi may adversely affect biological tissue and vascular health.