The antioxidant defense system at early stages of chronic cerebrovascular pathology

A total of 109 patients with initial manifestations of chronic cerebrovascular pathology (CCVP) and uncomplicated hypertension (degree 1–2) and 30 healthy individuals (control group) were examined. The patients underwent comprehensive clinical and laboratory testing. Lipid peroxidation (LPO) was assessed using chemiluminescence of LDLP induced by Fe2+ ions. Reduced antioxidant activity was revealed in 94.2% of patients with CCVP associated with hypertension as compared to healthy individuals; individual LPO components were enhanced. Dyscirculatory encephalopathy in patients with hypertension was preceded by a period of early or initial manifestations of cerebrovascular disorders with activation of free radical oxidation and depletion of the endogenous antioxidant system being comparable in terms of their severity. Enhancement of oxidation processes was observed in patients presenting with severe and frequent hypertensive urgencies, multiple microfocal cerebral lesions, dyslipoproteinemia, and increased red blood cell aggregation at the early stages of chronic cerebrovascular pathology.