The Effect of Ehf Radiation With a Wavelength of 5.6 Mm on Biological Objects in Vitro and in Vivo

Abstract

The reason for therapeutic effect of EHF radiation with a wavelength of 5.6 mm has not been precisely established yet. In this work, we conducted research based on the assumptions of other authors. The quenching of singlet oxygen under the influence of EHF radiation was tested using the method of photodynamic action on a suspension of erythrocytes. The suspension of erythrocytes, incubated with the photosensitizer, was then simultaneously irradiated with EHF and radiation at 652 nm. It was found that the dose of the onset of the photodynamic effect when irradiated only with visible radiation and simultaneously with both visible radiation and EHF radiation coincides within the measurement error. Such a result can be caused by insufficient amount of quenched singlet oxygen or by the absence of the quenching effect. The therapeutic effect of EHF radiation is also explained by the expansion of small skin vessels during EHF exposure, which should lead to an increase in the temperature of the skin surface. We have observed the change in the temperature of the palms using a thermal imager when exposed to EHF radiation on the acupuncture point TB5. The observation was carried out for 35 minutes. The irradiation was during 15 minutes. A systemic effect of temperature change synchronously on both palms was found. An increase in the area-average temperature of the palm up to 1.5 K was observed only in 41.7% of cases. The rise in temperature activates the immune system, which, apparently, leads to the therapeutic effect of EHF radiation. At the same time, it has been established that the effect of EHF radiation at a wavelength of 5.6 mm significantly depends on the individual and is not unambiguous.