Blood samples of 15 patients with threatened abortion, 15 healthy non-pregnant women and 15 pregnant women without pathology were investigated. The following indices were determined: the antioxidative plasma activity (by method of biochemiluminescence), the level of diene conjugates (by method of spectrophotometry) and the Schiff’s bases (after D.I.Flether).
The influence of ozone on the above indices depended on the used concentration of ozone. The ozone concentration of 400 mcg/L induced a significant increase (by 2,6 times) in the antioxidative plasma activity. Meanwhile, the level of lipid peroxidation molecular products had a tendency to decrease. Higher ozone concentrations (800 to 1200 mcg/L) led to reverse processes.