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Currently, the problem of treating sepsis is acute. To study these morphological and functional changes, animal models are used, for example, a model of experimental peritonitis, cecal ligation and puncture (CLP). However, there is only insufficient research on the description of internal organ rearrangements, in particular, skin morphological picture. The aim of the study was to assess of changes in mice internal organs in case of sepsis modeling. Materials and Methods. The authors performed cecal ligation and puncture in mice (n=40) to form experimental peritonitis and severe sepsis. In the control group (n=10), a sham surgery was conducted: a midline laparotomy was followed by layer-by-layer deaf suturing of the surgical wound. Results. The authors observed CLP-induced disorders in all vital organs, especially in the liver (violation of the beam structure of the hepatic lobules with signs of balloon dystrophy and necrosis areas, leukocyte infiltration, plethora of sinusoids), kidneys (thinning of the visceral layer of the Bowman’s capsule, narrowing of the afferent arteriole lumen, balloon dystrophy of proximal and distal tubules, widespread disappearance of the brush border in nephrocytes) and the spleen (hyperplasia of the white pulp with a large number of apoptotic lymphocytes). Moreover, signs of mild inflammatory infiltration were observed in the skin. Conclusion. The morphological changes found during the study corresponded to the reaction of the test organs in sepsis. The proposed CLP method for experimental peritonitis can be used as a sepsis model. Keywords: sepsis, cecal ligation and puncture (CLP), skin, inflammation. В настоящий момент остро стоит проблема лечения сепсиса. Для изучения данных морфофункциональных изменений используют модели на животных, например модель экспериментального перитонита – лигирование и пункцию слепой кишки (cecal ligation and puncture, CLP). Однако исследований, касающихся описания перестроек внутренних органов, в частности морфологической картины кожного покрова, проведено явно недостаточно. Цель исследования. Морфологическая оценка изменений внутренних органов мышей в условиях моделирования сепсиса. Материалы и методы. У мышей (n=40) проводили лигирование и пункцию слепой кишки для формирования экспериментального перитонита (CLP) и тяжелого сепсиса. В контрольной группе (n=10) осуществляли «фиктивную» операцию – срединную лапаротомию с последующим послойным глухим ушиванием операционной раны. Результаты. Во всех жизненно важных органах наблюдали нарушения, индуцированные CLP, особенно в печени (нарушение балочного строения печеночных долек с признаками баллонной дистрофии и зонами некроза, лейкоцитарная инфильтрация, полнокровие синусоидов), почках (истончение висцерального листка капсулы Боумена–Шумлянского, сужение просвета приносящих артериол, баллонная дистрофия проксимальных и дистальных канальцев, повсеместное исчезновение щеточной каемки в нефроцитах) и селезенке (гиперплазия белой пульпы с наличием большого количества апоптотических лимфоцитов), а также отмечали признаки слабой воспалительной инфильтрации в коже. Заключение. Обнаруженные в ходе исследования морфологические изменения соответствуют реакции исследуемых органов при сепсисе. Предложенный метод CLP для создания экспериментального перитонита можно использовать в качестве модели сепсиса. Ключевые слова: сепсис, cecal ligation and puncture (CLP), кожа, воспаление.
The development of organizational communication monitoring involves increasing the sustainability of production development, ensuring the efficiency of production. The article sets out the experience of some research in this area carried out by the authors. The authors propose to develop a system of optimization of efforts and resources aimed at improving the methodological apparatus of communication activity of specialists in production, considering the existing experience. Development of a comprehensive approach to acting in conditions of uncertainty, quasi-stable situations of risk and communicative tension. Development of creative potential of communication participants, their ability to integrate into various management situations and respond quickly to the changing situation in the workplace. The system development of a pragmatic approach to the communicative component of company management, the development of environmentally appropriate measures to maintain continuous managerial communication in the digital space, comfort and stress resistance of the employee.
The study aims to describe the functional purpose and pragmatic properties of linguistic ecology based on the material of scientific texts about the Earth, their recognition and correct understanding by foreigners mastering the Russian language. Syntaxemes are used for analysis, which are used both in scientific (more often technical) and colloquial styles, the analogy of which is offered in the block of methodological tasks that consolidate the information received. The described system of exercises for distinguishing constructions with a zero connective, ellipsis and sentences without them allows students who speak Russian as a foreign language at elementary and advanced levels to understand easily the everyday speech of native speakers, as well as master the scientific terminology of the language being studied. Summarizing the experience of work at the stages of pre-university and university education, the authors come to the conclusion that the use of the analyzed models and structures as educational material contributes to the implementation of personality-oriented and communicative approaches in the educational space of the university.
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