Tag Archives: microwave radiation
Oxidative and mutagenic effects of low intensity microwave radiation on quail embryos
A. Burlaka1, O. Tsybulin2*, O. Brieieva1,
O. Salavor3, I. Yakymenko3,4
1R.E. Kavetsky Institute of Experimental Pathology, Oncology and Radiobiology,
National Academy of Sciences of Ukraine, Kyiv;
2Bila Tserkva National Agrarian University, Bila Tserkva, Ukraine;
3National University of Food Technologies, Kyiv, Ukraine;
4Kyiv Medical University, Kyiv, Ukraine;
*e-mail: alex.tsybulin@gmail.com
Received: 18 December 2020; Accepted: 21 January 2022
Intensive implementation of wireless communication systems raised the question of the possible adverse effects of anthropogenic electromagnetic radiation. This study aims to assess the biological effects of low intensity microwaves (MW) radiation from smartphone Huawei Y5I commercial model used alone or in combination with attached Waveex chip that balances low frequency electromagnetic field but does not affect microwave signal. The biological model of developing quail embryos in ovo was used in the study. The phone as a source of low intensity 1800 MHz (0.32 µW/cm2) microwaves radiation was placed at 3 cm over the surface of hatching eggs and discontinuously activated with a computer program (48 s – on, 12 s – off). It was demonstrated that the exposure of quail embryos to radiation resulted in a statistically significant increase in the content of superoxide, nitrogen oxide and TBA products, DNA integrity damage in embryo cells and increased embryo mortality. Application of Waveex chip during the exposure resulted in a partial normalization of oxidative status and DNA integrity in embryonic cells indicating a negative impact not only of MW radiation, but of low-frequency electromagnetic fields from mobile devices as well.
The activity of prooxidant-antioxidant system in loach embryos under the action of microwave radiation
M. M. Yaremchuk, M. V. Dyka, D. I. Sanagursky
Ivan Franko National University of Lviv,Ukraine;
e-mail: m.yaremchuk@i.ua
Electromagnetic radiation (EMR) affects biological organisms, primarily on the cellular level. However, the effects of EMR at low-intensity exposure on animals and state of metabolic systems are not fully defined yet. Thus, research of microwave radiation influence on the processes of lipid peroxidation and antioxidant protection system is important for understanding the mechanisms of EMR action on the cell, in particular, and organism development on the whole. The content of lipid peroxidation products – lipid hydroperoxides, thiobarbituric acid reactive substances and the activity of antioxidant enzymes – superoxide dismutase, glutathione peroxidase and catalase in loach embryos under the action of microwave radiation (GSM-900 MHz, SAR = 1.1 Vt/kg) lasting 1; 5; 10 and 20 min during early embryogenesis were studied. It has been found that content of lipid peroxidation products in germ cells undergoes significant changes under the action of low-intensity EMR. The effect of microwave radiation (1, 5, 10 min) leads to the increase of superoxide dismutase activity, nevertheless, 20 min exposure decreased this index to the level of control values as it is shown. It has been established that EMR at frequencies used for mobile communications reduce the activity of antioxidant protection system components, especially catalase and glutathione peroxidase. The growth of catalase activity at the 10-cell stage of blastomere division (P < 0.05) is an exception. The results of two-way analysis of variance attest that microwave radiation factor causes the large part of all observable modifications.