[Protein metabolism in the autonomic nervous system structures in acute experimental emotional stress]

Protein metabolism of extramural ganglia neurons of the rabbit autonomic nervous system (superior cervical, stellate, nodular) and the sympathetic chain at the level of the 4th--6th thoracic segment has been studied at an acute emotional stress produced by simultaneous electric stimulation of the hypothalamic ventro-medial nuclei and various parts of the body skin. It has been found out that in rabbits "predisposed to the development of stress, metabolic activity of the sympathetic nervous system structures and that of the vagus nerve change during the experimental emotional stress. In the stellate sympathetic node and in the sympathetic chain anabolic processes intensify, while in the nodular ganglion and, to a less degree, in the superior cervical node, catabolic processes intensify. Under the effect of a modulated electromagnetic field (voltage 30 v/m, frequency 39 MHz, modulation rate 7 Hz, depth of modulation 80%) the rabbits demonstrate an increased stability to the stress effect. It is possible that one of the factors determining functional stability of the cardio-vascular system to the stress effect could be certain changes in the nodular ganglion reactivity. In adapting rabbits, the anabolic processes predominate over the catabolic ones in the nodular ganglion.