The effect of negative air ions (NAI) was investigated on physiologica
l processes of peroxidative oxidation in mitochondria preserving their
native structure organization in associations in rat liver homogenate
. Tchijevsky lustre generating superoxide was served as a source of NA
I. The investigated objects were put into solutions pretreated with NA
I flow. An increase of peroxide induced Ca2+ release from mitochondria
loaded with the cation was found. Under prolonged action of NAI flow
on homogenates kept: in ice followed by incubation in media pretreated
with NAI an elevation of products of peroxide lipid oxidation (POL) w
as found in case of their low initial level and decrease of POL produc
ts in case of their high initial level. The range of changes is consid
erably less than under pathogeneous rise of POL. The discovered mild a
ctivation of peroxidative oxidation within physiological range of POL
concentrations is considered as a primary physico-chemical mechanism o
f beneficial biological action of NAI.