[High-performance liquid chromatographic method for the determination of dihydroquercetin in extracts of medicinal plants].

Determination of dihydroquercetin in extracts of medicinal plants by a high-performance liquid chromatography is presented. The method is simple, quick, highly reproducible and can be widely applied in phytopharmacology.

[Diagnostic value of investigating exhaled air condensate in lung cancer]. / Diagnosticheskaia tsennost' issledovaniia kondensata vydykhaemogo vozdukha pri rake lëgkogo.

Parameters of lipid peroxidation and the levels of calcium ions in blood plasma and exhaled air condensate (EAC) were studied in 47 patients with lung cancer. The changes in EAC turned out to be more specific than those of blood plasma. The level of lipoperoxidation in condensate in cancer patients was lower than in healthy subjects. However, calcium cations concentrations in both blood and EAC were relatively higher, the latter difference being significant. The investigation pointed to a greater diagnostic value of EAC measurements, as compared with blood plasma, in lung cancer patients.