Visnyk of Dnipropetrovsk University. Biology, medicine

3-7

Authors: A. R. Abushova, S. A. Gasanova, M. A. Kasimzade

The results of the research of rare species of actinomycetes in some soils of Azerbaijan were studied. On the selective media the representatives of Streptomyces, Streptosporangium, Micromonospora, Actinomadura, Microbispora, Saccharopolyspora and Saccharomonospora were revealed. Species of Streptomyces and Micromonospora dominate in mountain-wood ecosystems (60 %.). It was established that among streptomyces species of Cinereus section of Violaceus series; Helvolo-Flavus sections of Helvolus series, Roseus sections of Fuscus series; Azureus sections of Coerulescens series. It was established that amount of termotolerant actinomycetes in the investigated desert soils of Azerbaijan depends on the incubation temperature. The species of Streptomyces, Micromonospora, Saccharopolyspora and Actinomadura genera were isolated from desert soils of Azerbaijan.

13-19

Authors: E. V. Veselovskaya

The dynamics of the reactions of rats with submissive type of behaviour to known or unknown part-ners has been investigated under modelling of sensory contact in a «partition» test under the conditions of agonistic collisions. Testing the rats with submissive type of behaviour testifies to the fact that after the series of agonistic collisions the rats demonstrate increasing fear of a known partner-aggressor, but they keep the interest in an unknown partner in a «partition» test.

25-30

Authors: G. O. Zadorozhna, V. P Lyashenko, T. G. Chaus, A. Lis, J. O. Tkachenko

The research of the dynamics of the osmotic resistance of erythrocytes of rats in the conditions of the influence of the vortical impulsive magnetic field has been provided. It has been discovered that the protracted magnetic field during 21 weeks modulates (changes) the studied index. The peculiarities of the action of right- and left-directed vortical influences of the magnetic field at their protracted use are examined. Under the prolonged action the effects of the vortical magnetic field of different orientation were different and became apparent at the beginning of the research. The action of the right-directed magnetic field caused the revival of the morphofunctional state of erythrocytes, while the left-directed one worsened it.

38-42

Authors: M. A. Kisjakova, A. F. Gavrylyuk, T. N. Polishko, V. M. Moiseenko, A. I. Vinnikov

Information on the structure, physical and chemical characteristics of the phospholipid vesicles (liposomes) – the effective natural drug delivery system is presented. Types of liposomes, procedures of its productions, penetration mechanisms into cells and functional features of liposomal drugs are described. Data on production of liposomes with lactobacilli acellular homogenates and the methods of the liposomes structure control asre demonstrated.

49-57

Authors: Е. V. Lyapustina

The investigation established the possibility of production of maize embryo in culture of isolated caryopsis on artificial nutrient medium in vitro conditions from a zygote / proembryo and globular stage up to the full maturity. It was determined that the cultivation of caryopsis on artificial nutrient medium provides the accumulation of starch in endosperm. The internal state of cultured caryopsis can be considered as a marker of embryo upgrowing and starch accumulation in endosperm, irrespective of the genotype. The genotype, the age of cultured caryopsis and concentration of sucrose influence on the development of endosperm, accumulation of starch in endosperm and embryo upgrowing from the zygote / proembryo and globular stage.

65-70

Authors: M. P. Motsnyj, N. P. Botsva, S. V. Vlasova, О. V. Elina, I. P. Matvij

Dynamics of maize leaves' biopotentials evoked by cold- and heat stimuli with two frequencies 0.05 and 0.1 Hz is analyzed. Potential amplitude dependence of heating rate and time interval between first and following stimuli during both heating and cooling was discovered. It is ascertained that following potentials' amplitude increases in time during heat stimulation and decreases in time during cold stimulation. Qualitative difference in the reaching of potential stabilization is established for both stimulation frequencies; and probable reasons of the difference are analyzed. Potential stabilization levels are fixed for each series of experiment.

76-80

Authors: J. V. Suponko, N. I. Shtemenko

Enzymes’ level in rat’s hepatocytes under Guerin's carcinoma T8 development as well as after injection of rhenium compounds and cis-platin has been studied. It has been determined that the decrease of enzymatic activity to the level of the animals of control group was observed at the simultaneous injection of cis-platin and cluster rhenium compounds in nanoliposomal and water-soluble forms. That confirms possible hepatoprotective properties of the rhenium compounds. It has been shown that hepatoprotective properties of rhenium cluster compounds mostly don’t depend on the form of their injection and are detected regardless of anticancer properties. Rhenium-platinum system with β-alanine ligand in aqueous solution, has been found. Its injection is accompanied by the hepatoprotective effect

85-89

Authors: O. Z. Fomenko, G. A. Ushakova, S. G. Pierzynowski

The increase of hyaluronic acid concentration in the blood serum of rats during modelling of chronic hepatitis C is presented. The research of changes in the absolute and relative hyaluronate-binding activity of cytosolic proteins in the rats’ cerebellum and hippocampus under normal condition, experimental chronic hepatitis C and with the alfa-ketoglutarate treatment was carried out.

96-100

Authors: S. O. Shapovalov

Use of preparations developed on basis of the microelements compounds is an efficient alternative to existed traditional approach to the prevention of metabolic disorders in animals. Obtained results enlarge understanding the mechanisms of antioxidant system activity and could be the basis for elaboration of scientific schemes of metabolism regulation with the help of different bioactive food supplements. Microelements complex “Biotam” stimulates proteins biosynthesis and increasing its level in the animals blood. It is proved that introduction of additional amount of microelements actuates the processes of proteolysis due to activation of pancreatic membrane enzymes.

111-118

Authors: O. O. Shugurov

We have investigated nonlinear properties of integrative system of a spinal cord (SC) of cats by the method of pseudo-casual stimulation of nerves as well as the evoked potentials (EP) of SC. Nonlinearity of target reaction was estimated by calculation of nuclei of a Viner series. We have found the first three nuclei, which enabled us to describe adequately N1-components and Р-phase of EPSC. We have shown that for the descriptions of N2- and N3-components of EP one needs a calculation of nuclei of a high order.