[The prophylactic effect of negatively charged air ions in acute stress in rats with different typological behavioral characteristics].

Typological characteristics of behaviour of 63 male white rats weighing 200-250 g were estimated by their locomotion in the open field. Acute stress was induced by putting the rats into narrow tubes for 1 h. Prior to the experiment, the rats were exposed to the air ions produced by Chizhevskiĭ air ionizer ("Elion-132") for 2 h daily within a week. It was found out that the expression of separate pathological stress-induced changes depended on typological characteristics of rats. The air ions were shown to prevent completely the development of physiological changes caused by acute immobilization, including arterial pressure increase, gastric mucosa injuries (erosions, haemorrhage), changes in respiratory enzyme activity (succinate dehydrogenase and NADH-dehydrogenase) in brain cells, cardiac and adrenal mass increase in rats with the active type behaviour.