CHARACTERISTICS OF CHANGES IN COGNITIVE FUNCTIONS OF THE PATIENTS WITH HYPERTENSIVE DISEASE.

Decline of the cognitive functions is one of the modern medicine actual problem. The influence of hypertension as modifiable risk factor in the evolution of cognitive impairment is emphasized in numerous investigations. Almost all the proposed in research literature data were obtained from the investigation of old patients group, who had high indexes of blood pressure and stroke histories.

[Accumulation and precipitation of Mn2+ by the cells of Oscillatoria terebriformis].

The cyanobacterium Oscillatoria terebriformis was shown to exhibit resistance to high manganese concentrations, remaining viable at 2.5 mM MnCl2 in the medium. Cyanobacterial cells were capable of considerable manganese consumption from the medium.

[New possibilities of studying microbial objects by laser interference microscopy].

A novel method, laser interference microscopy, has been developed for studying the morphofunctional state of bacterial cells and the structure of bacterial communities. The following potentialities of the method are shown: rapid determination of the cell structure and subcellular structures (nucleus zone, vacuoles, lamellar structures) and the physiological state of the cell, as well as the study of the structure of bacterial communities (biofilm). The method does not require any additional preparation of cells before the investigation (fixation, staining, treatment with contrasting substances), which reduces the possible appearance of artifacts to a minimum and enables one to use laser interference microscopy for in vivo investigations.