ІНДИВІДУАЛЬНІ КОЛЕКЦІЇ ВИКЛАДАЧІВ ТА СПІВРОБІТНИКІВ
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Item INFLUENCE OF BIOLOGICALLY ACTIVE SUBSTANCES ON SYNTHESIS FUNCTION AND CELLULAR DESTRUCTION OF HEPATOCYTES IN VITRO(2022) Shkuropat, A. V.; Shvets, V. A.; Golovchenko, I. V.; Prosiannikova, Ya. M.; Шкуропат, А. В.; Швець, В. А.; Головченко, І. В.; Просяннікова, Я. М.The aim of the study was to reveal the effect of biologically active substances on the synthesis activity and cellular destruction of hepatocytes in vitro. Liver sections were prepared for investigation and placed in culture vials with DMEM nutrient medium with 15% calf serum, glucose, and antibiotics (streptomycin and penicillin). Liver sections were incubated for 14 days with interleukin-2 (roncoleukin) at a concentration of 5000 IU/ml and 7500 IU/ml, and erythropoietin (epobiocrine, “Biopharma”, USA) at a concentration of 13 IU/ml (high concentration), 6.5 IU/ml (medium concentration) and 1.3 IU/ml (low concentration) and without stimulation (control cultures). Synthesis activity and cellular destruction of hepatocytes were studied by determining the protein content, alanine aminotransferase and aspartate aminotransferase activity in the supernatant of liver organ cultures on the 7th and 14th days of incubation. It was found that culturing organotypic cultures with IL-2 did not affect the synthesis function of hepatocytes, but reduced aspartate aminotransferase activity throughout the culture period. At a concentration of 7500 IU/ml IL-2 showed a weak epatotoxic effect. It was found that erythropoietin at a medium concentration had a hepatoprotective effect, at a high concentration it suppressed the synthesis activity of hepatocytes and contributed to the destruction of the cytoplasmic membrane of cells. At low concentrations, erythropoietin increased the synthesis activity of liver cells but caused an increase in the activity of aminotransferases, this may indicate both mass cell death and intensification of amino acid transamination processes. It was established that interleukin and its inhibitor cause biological effects when incubated with organotypic cultures. Вивчали вплив біологічно активних препаратів на синтетичну активність та клітинну деструкцію гепатоцитів in vitro. Для дослідження робили зрізи печінки та поміщали у культуральні флакони з живильним середовищем DMEM з додаванням 15%-ї телячої сироватки, глюкози та антибіотиків (стрептоміцин та пеніцилін). Інкубували протягом 14 діб з інтерлейкіном-2 (ІЛ-2, ронколейкін) у концентрації 5000 і 7500 МО/мл, еритропоетином (епобіокрин, «Biopharma», США) у високій концентрації (13 МО/мл), середній (6,5 МО/мл) та низькій (1,3 МО/мл), а також без стимуляції (контрольні культури). Досліджували синтетичну активність та клітинну деструкцію гепатоцитів за вмістом білка, активністю аланінамінотрансферази (АлАТ) та аспартатамінотрансферази (АсАТ) у супернатанті органних культур печінки на 7-й та 14-й день інкубації. З’ясували, що культивування органотипових культур з ІЛ-2 не вплинуло на синтетичну функцію гепатоцитів, проте зменшило активність АсАТ протягом усього періоду культивування. У концентрації 7500 МО/мл ІЛ-2 виявляв слабку гепатотоксичну дію. Встановлено, що еритропоетин у середній концентрації чинив гепатопротекторну дію, у високій – пригнічував синтетичну активність гепатоцитів та сприяв руйнуванню цитоплазматичної мембрани клітин, у низькій концентрації збільшував синтетичну активність клітин печінки, однак, викликав збільшення активності амінотрансфераз. Це може свідчити як про масову загибель клітин, так і про інтенсифікацію процесів трансамінування амінокислот. Було встановлено, що інтерлейкін та його інгібітор викликають біологічні ефекти при інкубуванні з органотиповими культурами.Item Effect of Interleukin-2 on the humoral link of immunity during physical activity(2020) Shvets, V.; Shkuropat, A.; Prosiannikova, Ya. M.; Golovchenko, I. V.; Просяннікова, Я. М.; Швець, В. А.; Шкуропат, А. В.; Головченко, І. В.The effect of physical activity can be considered as a prototype of stress with all the shifts in hormonal and immune systems that are inherent in the body’s response to stress. The aim of this study was to evaluate the level of immunoglobulins during the process of adaptation to physical activity under conditions of stimulation and inhibition of interleukin-2 (IL-2). Five groups of mice were organized. Group 1 received an inhibitor of IL-2, Groups II, III and IV received IL-2 at concentrations of 5000, 7500 and 30,000 IU/kg, respectively, Group V received physiological saline only. The method of forced swimming was used as physical training. To determine the effect of IL-2 on humoral immunity during adaptation to physical training, blood levels of adrenaline, IgG, IgA and IgM were determined. In all groups anadrenaline concentration increased owing to physical activity. Furthermore, animals receiving IL-2 showed a higher level of adrenaline than animals in other experimental groups. This effect was dose-dependent. The IgG level increased in mice that received IL-2 while exercising. IgA and IgM levels remained independent of IL-2 stimulation, although the IgA level slightly varied in mice that received an inhibitor of IL-2. In all experimental groups IgA and IgM levels decreased irrespective of IL-2 stimulation and inhibition, the decrease was caused by physical training only. Blood tests of animals from all experimental groups showed a change in the ratio of immunoglobulins, that is an increase in the relative content of IgG during physical training and a decrease in the relative content of IgA and IgM.Item THE PHENOMENON OF LINGUISTIC INTERFERENCE IN PROFESSIONAL INTERCULTURAL COMMUNICATION AND TRANSLATION (ON EXAMPLES OF UKRAINIAN-ENGLISH DIFFERENCES)(2019) Prosiannikova, Ya. M.; Yefymenko, T.; Moroz, T.; Solodka, A.; Просяннікова, Я. М.The theoretical bases of interference research are analyzed in the article, the essence of the concept of "interference" is turned out. The translation of linguistic interference, causes and mechanisms of its appearance, its impact on professional communication are considered in the paper. The publication deals with the manifestations of interference within the limits of imperfect parts of the language and the difficulties of translation caused by the syntactic and punctuation features of the language. Comparison of grammatical systems of contacting languages makes it possible to avoid some of the difficulties caused by interference, because of their conscious comparison. The phenomenon of interference is studied in linguistics, sociolinguistics, psychology, psycholinguistics, methods of teaching foreign languages. Actualization of the linguistic aspect of interference occurs at all levels of the language system and is realized in speech regardless of the speaker’s consciousness. Linguistic interference in translation can appear both at the level of morphemes and at the level of words represented by different parts of speech: pronouns, verbs, nouns, adverbs, Participle I, Participle II, prepositions, conjunctions. All interferences covered in the paper have been analyzed. Consequently, interference is one of the factors, one of the engines of language development, linguistic changes that are accumulated and drown in it. In a subordinate plan, mass and frequent interference means the constant mixing of two systems, their more or less mutual assimilation. Thus, identifying areas of linguistic interference, studies have attested interference phenomenon are important for improving language culture. Attracting attention to those areas and units of language where there is a probable occurrence of deviations from the norm under the influence of another language can help to avoid interference. It was emphasized that it is precisely the account of the manifestations of interference in the training of professional intercultural communication and translation that can ensure the effectiveness of the educational process for the preparation of translators.