Biology |
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2004, Special Issue
T.I. Vasilieva, V.G. Podkovkin
Psychological, physiological and biological parameters of schoolboys of the village Utiovka of Neftegorsk District by the work at a computer is investigated. Correlation of physiological parameters and glucocorticoids, histamines and serotonins concentration in saliva with emotional condition of a person is discovered. The effect of electromagnetic influence of a computer on processes of adaptation of schoolboys is demonstrated.
N.A. Klenova, O.J. Elistratova, J.L. Polyakova
FORMATION OF PEPTIDES CONNECTIONS IN ERYTHROCYTES AFTER OXIDATIVE STRESS
The operation of the initiators of an oxidizing (Fe2+ + lipoproteins) on a fraction of pure erythrocytes of a man is investigated. It is shown, that conditions of an oxidative stress reduce in a stimulation of methaemoglobin forming and degradation of membrane frames of a cell. The body height of damages of diaphragms of erythrocytes is accompanied by activation of processes of splitting of cell-like protein and derivation biologically of fissile peptides. The outcomes of a high performance fluid chromatography show, that the number of identified peptides are fragments of chains of haemoglobin. This is considerably enlarges possibilities of involvement erythrocytes during a regulation of homeostasis.
A.B. Milkin, M.A. Kurbatova, E.S. Selezneva, E.I. Tengayev, Z.P. Belousova
ON ANTIBACTERIAL PROPERTIES OF BENZIMIDAZOLE, INDOLE AND THEIR METHYL DERIVATES
The antibacterial properties of indole and imidazole and their methyl derivates are compared. The fact that diimidazole is more toxic then indole both for Esherichia coli and Staphylococcus aureus is captured. Dimethylimidazole is more toxic then imidazole for Staphylococcus aureus and less toxic—for Esherichia coli. In the paper the possible mechanism of toxicity changes for prokaryotes during heterocyclic azoles methylising is discussed.