[Efficiency of KAT-quick P.f. test (KAT medical, SAR) among the populations of drug-resistant parasites].

The KAT-Quick P.f. test (KAT Medical, South African Republic) is based on the detection of protein HPR II produced by trophozoites and young gametocytes of P.

[The clinico-epidemiological characteristics of the "carriage" of the causative agents of blood-contact viral hepatitides].

Epidemiological assessment of isolated and combined infection's rate, features and character in the RF Samara Province on the examination basis of 4869 patients with viral hepatitis symptoms in their blood. The clinico-laboratory in-depth study conducted by the Military Medical Academy with participation of 150 volunteers-servicemen proved that "healthy" carrying of hepatitis B and C was really a latent infectious process of hemocontact viral hepatitis.

[Study of the function of multienzyme systems of Escherichia coli cellular structures in organic media microemulsions by (31)P-NMR and spin probing].

Dynamics of substrate pools and level of inorganic phosphate P(i) in the course of glucose-6-phosphate (G6P) utilization by Escherichia coli have been studied by 31P NMR and EPR methods on cells immobilised in a three component water-in-oil microemulsion composed from tridecane, nonionic surfactant Tween 81 and a low amount of water. The state of the electron transport chain in cell membranes has been evaluated on the basis of reduction rates of exogenous nitroxide radicals. Low water activity a(w) in the external microemulsion appears to inhibit, to some extent, glycolytic enzymes and electron transport proteins in the membrane structures without disturbing the membrane integrity and solubilization of lipoproteins in reverse micelles.

[Physiological activity of Escherichia coli cells studied by the spin exchange method].

The respiration and reducing activity of Escherichia coli M-17 cells was studied at physiological temperatures using the phenomenon of spin exchange between water-soluble nitroxyl radicals and molecular oxygen in liquid bacterial media. The peak intensity of the EPR signal from nitroxyl probes was characterized by a two-stage kinetics. The first stage was due to the rapid uptake of dissolved O2 whereas the second stage was caused by the anaerobic reduction of free radicals.