Visnyk of Dnipropetrovsk University. Biology, medicine

9-14

Authors: V. S. Bil’chuk, А. S. Rossikhina-Galycha

Influence of nickel ions on growth reaction in maize seedlings of Orjitza 237MV hybrid and the content of low-molecular antioxidants in assimilation organs are investigated. The dependence of morphometric parameters of seedling roots and sprouts on the concentration of nickel ions is established. Considerable depression of growth and development of vegetative organs at a juvenile period occurs under long-term action of the metal in concentrations of 0.05–1.00 mM/l. The changes of reduced glutathione and ascorbic acid content under nickel ions influence are found in the leaves photosynthesizing tissue of the maize seedlings. It leads to a variation of the reducing activity in the tissues. The given fact can testify to an oxidizing stress under nickel ions effect and to participation of the low-molecular antioxidants in the plants adaptation to xenobiotics influence. Period of renewal of the glutathione and ascorbic acid metabolism in experimental samples was determined by the concentration of the nickel nitrate.

20-25

Authors: O. S. Voronkova, E. A. Sirokvasha, T. N. Polishko, A. I. Vinnikov

The data on bacteriophage preparations, their features and benefits in comparison with other therapeutic agents are shown. The matters of phages production history to the present time are described. The data of phages application in clinical practice for the treatment, diagnostics, infections monitoring, sanitation of facilities and equipment, and conducting scientific research are shown. The benefits of phages drug are shown: affect only on specific sensitive bacteria, do not compromise the immunity, as opposed to antibiotics do not cause bacterial resistance, penetrate well into the humans and animals tissues, do not suppress the growth of normal flora and could be combined with any medication.

32-36

Authors: I. V. Zhernosekova

Physiological activities of Streptomyces recifensis var. lyticus P3X, culture liquid biopreparations and commercial preparations of Heteroauxin and Emistim were studed in the haricot bean (Phaseolus vulgaris). Stimulation of plants’ morpho-biochemical indices by 20.2–176.3 % was shown after the application of streptomyces preparations. Commercial preparations had no stimulation effect of the plants, except the Emistim effect on germinating power. Heteroauxin and Emistim oppressed some biochemical indices of plants by 22.6–55.6 %.

42-47

Authors: O. Р. Korzhenevs’ka, O. В. Severynovs’ka

With the help of daily monitoring of blood pressure we assessed the state of the cardiovascular system of foot-platemen of the Prydniprovsk railway Pjatykhatky Depot. Foot-platemen having the I stage of arterial hypertension demonstrated the 11–17% increase of arterial pressure during daily work. It is related to inefficient adaptation to the physical and psychoemotional overloads. With aggravation of the disease the change of arterial pressure during the work, especially night work, ismisaligned and characterised by considerable structural abnormalities of the left ventricle myocardium.

54-59

Authors: M. P. Motsnyj, N. P. Botsva, О. V. Elina, Y. A. Ulanova

Dynamics of maize leaves biopotentials evoked by X-rays stimuli is analysed. Qualitative similarity in dynamics of plant’s bioelectrical response is determined. Hyperpolarization levels are quantitatively estimated for every series of the experiment. Dependence of the summarized hyperpolarization levels on photostimulus wave length is detected. The fact is ascertained that mean amplitude of hyperpolarization potentials reduces from 57.7 to 27.7 mV when the wave length decreases. Probable mechanisms of the initiation of photostimulated bioelectrical response are analysed.

71-80

Authors: I. T. Rusev, V. N. Zakusilo

Analysis of mass outbreak of tularaemia in humans of Kosovo after the mass bombardments of the territory in 1999 suggests the possible anthropogenic nature of its origin. The emergence of mass epizooty among wild mammals and mass outbreaks of the disease among people of that dangerous infection may be possible in the case of activation of natural foci, or as a result of the infection import. Natural foci of tularaemia in Kosovo were not registered earlier. Consequently, outbreaks and epizootics of tularaemia may have the anthropogenic nature.

89-95

Authors: I. G. Sushchenko, О. М. Leshchuk, I. V. Dregval, А. I. Rudenko

Basic descriptions of the rats liver microvasculature and its prognostic significance under development of pancreatitis of different severity were determined by arheography method. Increased nitric monoxide content in the rats entails even more pronounced reduction of a tone of the liver’s great vessels. The vessels of medium and small diameter are less influenced and the reductionwasshort-term. Using the rheohepatogramme indices makes possible to determine the disturbance of liver’shaemodynamicsunderthe hepatopathy development.