[The temperature reaction of rabbits to local microwave exposures].

A rapid increase of skin temperature after discontinuation of local microwave (MW) exposure of the heart and thyroid indicates a vasomotor response in the exposed and adjacent zones. The infrared radiation (IR) of the particular parts of skin surface before and after local MW exposures (460 MHz, current density 10, 120 and 230 mW/cm2) of the rabbit heart and thyroid regions was registered by IR thermograph. The investigations were performed on un-narcotized, narcotized (nembutal 40 mg/kg) animals, on rabbits with anaesthetized skin receptors (lidocaine 100 mg) and on carcasses.

[The action of decimeter waves and merkazolil on myocardial metabolism in the rabbit and its hormonal regulation].

Oxidative and biosynthetic processes in the myocardium, blood serum thyroid hormones, thyroid and adrenal morphometric characteristics were investigated in rabbits upon the exposure of their thyroid projection zone to decimeter waves (460 MHz, 10 mW/cm2), administration of mercazolil (150 mg) given in courses and upon combined use of these modalities. Mercazolil was found to modulate the responses of the studied systems to the waves. This may be explained by feasible regulatory effect of the waves on mercazolil-induced changes in rabbit functions.

[Energy and plastic metabolism of the heart muscle in rabbits undergoing thyroid irradiation with decimeter waves].

The functional state of myocardial mitochondria, the glycogen and nucleic acid contents in myocardium, and morphometry of structural elements of cardiomyocytes and myocardial capillary network were investigated in order to select the optimal regimen of decimeter wave exposures with power density of 10, 120 and 240 mW/cm2 on the area of thyroid gland. It was shown that the thyroid gland exposure to decimeter waves at these intensities resulted in functional shifts in energy and plastic processes in myocardium and capillary blood supply. These changes increased to a considerable extent as the intensity of exposure was increasing and reached the maximum at power density of 240 mW/cm2 but event at this intensity there was not found the injurious effect of decimeter waves on the myocardium.

[Nature of physico-chemical changes in the membranes and chromatin of the lymphocyte nuclei in patients with rheumatoid arthritis].

Functional activity of lymphocytes, revealed by means of fluorometric study of the physicochemical properties of the membranes (according to the degree of binding with MBD) and nuclei (according to the degree of AO adsorption on chromatin DNA) was different in patients suffering from rheumatoid arthritis with different blood titers of RF determined by Vaaler-Rose's test. The lowered lymphocyte count in blood plasma was coupled with high functional activity of genome in patients with seronegative RA and with low in seropositive RA patients. Changes in the fluorescence of MBD bound with the membrane differed from those in the fluorescence of AO bound with lymphocyte chromatin.