Some biological reactions of the organism after exposure to nanosecond repetitive pulsed microwaves

Abstract

White adipose tissue is an important neuroendocrine organ, it can change the activity of the brain through its biologically active substances, and therefore, it can influence functioning of the body. The effects of nanosecond repetitive pulsed microwaves (RPMs) on the brain and epididymal adipose tissue of mice locally was studied (10 days, 4000 pulses per a day, peak power flux density of 1500W/cm 2 , pulse duration of 100 ns, repetition rates of 6, 13, 16, 22 Hz). The effect of RPM exposure was estimated from the changing of behavioural responses, neuronal activity of brain structures and level of corticosterone in blood serum. The data shows that direct nanosecond RPM irradiation of the brain changes brain activity. The effect is a significant multidirectional behavioural response, changes in the dynamics of general locomotor activity, in the neuronal activation of the hypothalamus and the reticular formation, as well as in the level of corticosterone. Furthermore, direct nanosecond RPM irradiation of the epididymal adipose tissue significantly changed the state of mice. Specifically, the RPMs were able to change the morphometric parameters of the adipose tissue itself, change the content of corticosterone in the blood serum, as well as change the behavioural responses of animals.