Valentina Demidova

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The solution of a problem of correct hyphenation of Roma-nian language words, and in general, problem of division them into syllables, becomes especially urgent today in view of absence of algorithm of word division into syllables in many widely used automated text processing systems exactly for Romanian language. This problem is nontrivial, whereas at a(More)
Energy-consuming, ATP-dependent step of transmembrane transmission of the signal for chemotaxis was studied at the pathway between receptors of formylpeptide and membrane kinase of polymorphonuclears leukocytes. Some peptides, particularly formylmethionyl leucylphenylalanine (FMLP), were demonstrated to have a property of chemostimulation, i.e. they had an(More)
Plasma-membrane-enriched particles isolated from the tissues of malignant tumors of different sites are shown to accumulate ATP under the influence of polypeptide growth factors and cytokines whose receptors have a tyrosine kinase activity. Polypeptide growth factors, such as EGF, FGF, NGF, TNF, insulin, and the cytokine IL-2, were studied on the(More)
In order to develop a diagnostic panel, mRNA levels of tumor marker genes have been evaluated in capillary blood of patients with various malignant tumors of the gastrointestinal tract (GIT) by means of the method of reverse transcription combined with real-time PCR with detection of reaction products using TaqMan probes. Use of small volumes of capillary(More)
Carbohydrate metabolism was explored in 52 patients with cancer of the head of pancreas before and after pylorus-preserving pancreatoduodenal resection. Glycemia, insulin dosage, glucosuria and acetonuria were assessed retrospectively to reveal correlation with postoperative carbohydrate metabolism disturbances. Preoperatively 46.2% of patients had no(More)
In the particles enriched with plasmatic membranes of target cells (human erythrocytes, skeletal muscles and adipocytes of rats) ATP was steadily formed within 1 min of incubation of the particles with insulin (4 microgram/ml) in the medium containing Tris-HCl buffer, pH 7.5, ADP, Mg2+, inorganic phosphate, NaF, during NADH oxidation in presence of(More)