[The activity of redox-regulatory systems in the primary and recurrence tumors in vulvar cancer].

The activities of superoxide dismutase (SOD), catalase, glutathione peroxidase (GPx), glutathione reductase (GR), glutathione transferase (GST), the content of reduced glutathione (GSH) and malondialdehyde (MDA) were investigated in the samples of the tumor, peritumoral zone and healthy tissue, taken at the line of resection, were obtained from 14 patients with primary squamous cell carcinoma of the vulva, and 13 patients with local recurrence appeared in the period from 3 months to 7 years. by conventional spectrophotometric methods. The content of GSH and the activity of SOD, GPx, GR, GST were significantly increased, while MDA was decreased in the tissue of the primary carcinoma of the vulva in compared with the healthy tissue.

[Effect of iron nanoparticles on free radical oxidation process in blood of rats with Pliss lymphosarcoma].

The use of metal nanoparticles (NPs) for cancer treatment requires careful examination of their biological effects. The aim of this study was to determine parameters of oxidative processes in the blood of tumor-bearing animals treated with metallic iron NPs only. The markers of antioxidant status and accumulation of lipid peroxidation products were measured in erythrocytes and blood plasma of rats with Pliss lymphosarcoma (PLS) and intact rats.