Correlation between miR-146a and miR-155 levels and concentration of cytokines in patients with allergopathy in chronic persistence of Epstein-Barr virus infection

Analysis of correlation between miR-146a and miR-155 levels and concentration of antiviral cytokines in patients with allergopathy in active and latent phases of chronic persistence of Epstein-Barr virus infection (EBV) has been conducted. Thus, 38 patients with allergopathy and chronic persistence of EBV of different genders, age 32.73.2 years have been examined, who were divided into groups depending on the phases of virus persistence. Control group included 20 healthy individuals. Reliable changes in IL12, IL33, IL1ß and IFN- were revealed in patients of both groups. The results: reliably higher levels of miR-146a expression, by 2.9 times (р=8.0E-04) and by 2.25 times (р=0.011), respectively, compared with control group; reliable difference in miR-155 levels in patients with EBV-infection in active and latent forms of virus persistence (р=1.0E-07) and significant decrease in the indicated miRNA (р=1.0E-07) by 55.8 times in patients with latent course of EBV-infection compared with control. A reliable reverse correlation of various intensities was detected between IL12, IL1ß, IFN- and miR-146a; absence of correlation between TNF-α, IL33 and miR-146a was observed. A direct correlation was revealed between all investigated cytokines IL12, TNF-α, IL33, IL1ß, IFN- and miR-155. the results of investigation showed that elevation of miR-146a can prognostically indicate inhibition of pro-inflammatory activity of cytokines and anti-inflammatory protection with the formation of pathological disorders, including allergopathy. Meanwhile, the presence of chronic persistence of EBV demonstrates an opposite direction of correlations between miR-155 and cytokines with pro-inflammatory properties, which confirms the ability of opportunistic infections to modulate immune response toward allergopathy

The Effect of Soft Skills on the Successful Employment of Future Engineers: Self-Evaluation Results

The research focuses on “integrating” technological universities’ graduates in the current labor market. In pedagogical practice, it is widely known that university graduates with welldeveloped “soft” skills feel more confident about their future, and they can more easily cope with job search. In order to identify the effect of “soft” skills on the readiness of future engineers to job search, a survey was conducted among 106 students, including programmers, business analysts, IT designers, materials scientists, and nanotechnologists.The authors used the statistical methods to identify the relationship between students’ self-evaluation of “soft” skills and their readiness for job-seeking. We have found that 71.7% of all respondents who determined a high level of proficiency in “soft” skills, only 29.6% are confident that job search should not cause difficulties, 28.8% can see a clear connection between their studies and future profession, and 37% believe that they have motivation for professional fulfillment.The results of the survey based on self-evaluation showed that in spite of having a high score in evaluating their “soft” skills, the respondents express extreme uncertainty that they will be competitive enough outside the university and that will be prepared to apply the skills which are crucial for successful employment

CSF Bypass Surgery in Children with Hydrocephalus: Modern Possibilities, Prospects and Ways of Solving the Correction of Complications

The chapter discusses modern and promising approaches to the use of CSF shunting operations in children. CSF shunting operations remain the only effective method for correcting persistent CSF circulation disorders in CSF resorption disorders with the development of intracranial hypertension and hydrocephalus. The chapter is devoted to general ideas about CSF dynamics and biomechanical properties of the craniospinal system that affect CSF dynamics, and gives a pathogenetic assessment of CSF dynamics in the development of intracranial hypertension and hydrocephalus. Aspects of genetics and genomics of anomalies in hydrocephalus are touched upon. Pathological changes in the brain around old ventricular shunts are described. The authors consider the types of CSF shunting operations for hydrocephalus in children. Possible complications of CSF shunting operations are analyzed with the algorithm for their correction and management tactics for this group of patients

Частота инфекционных осложнений и особенности системного воспалительного ответа у больных с длительным нарушением сознания

Objective: investigate epidemiology of infectious complications, intensity of antibacterial therapy, and features of the systemic inflammatory response in patients with prolonged disorders of consciousness.Materials and methods: retrospective case histories analysis of 102 patients with prolonged disorders of consciousness who were treated in the department of anesthesiology and intensive care of Polenov Neurosurgical Institute from 2010 to 2019.Results: during hospitalization all patients (100%) had signs of tracheobronchitis, 86 patients (84,3%) had urinary tract infection, 34 (33,3%) pneumonia, 10 patients (9,8%) meningoventriculitis, and in 9 (8,8%) cases sepsis was diagnosed. Identified bacterial complications required systemic antibacterial therapy. With an average length of hospital stay of 51±42 days, duration of antibiotic therapy was 37±41 days. One-component therapy was applied in half of the cases (54%), slightly less often (43,2%) treatment consisted of two antibiotics, in some cases patient’s condition required prescription of three antibiotics (2,8%). Even in the absence of a focus of infection, temperature and laboratory markers of inflammation in blood samples of patients with prolonged disorders of consciousness were higher than the reference values. CRP was increased with addition of any bacterial complications. Count of white blood cells significantly increased only in case of pneumonia and sepsis. Procalcitonin test was positive in 16,6% observations of urinary tract infection, 30,4% of pneumonia, and 28% of meningoventriculitis.Conclusion: most informative proinflammatory marker of bacterial complications in patients with prolonged disorders of consciousness was CRP. Mild leukocyte response can be explained by immunosuppression in long-term ill patients. Limited value of procalcitonin test may be due to the insufficiency of the semi-quantitative method sensitivity with a threshold level of 0,5 ng/ml, as well as reduced proinflammatory response to local infection in patients with prolonged disorders of consciousness as a result of massive antibacterial therapy, colonization of opportunistic microflora and presence of sympathicotonia (non-infectious systemic inflammatory reaction). Цель: изучить эпидемиологию инфекционных осложнений, интенсивность антибактериальной терапии и особенности системного воспалительного ответа у больных с длительным нарушением сознания.Материалы и методы: проведен ретроспективный анализ историй болезни 102 пациентов с длительным нарушением сознания, проходивших лечение в отделении анестезиологии-реанимации Российского научноисследовательского нейрохирургического института им. профессора А.Л. Поленова с 2010 по 2019 г.Результаты: у всех пациентов (100%) за время госпитализации присутствовали признаки трахеобронхита, у 86 больных (84,3%) была обнаружена инфекция мочевыводящих путей, у 34 (33,3%) – пневмония, у 10 (9,8%) – менинговентрикулит, у 9 (8,8%) – сепсис. Выявленные бактериальные осложнения потребовали назначения интенсивной антибактериальной терапии. При продолжительности пребывания больного в стационаре в среднем 51±42 дня продолжительность антибактериальной терапии составила в среднем 37±41 день. Однокомпонентная терапия проводилась в половине случаев (54%), чуть реже (43,2%) лечение состояло из двух антибактериальных препаратов, в отдельных случаях состояние больного требовало назначения трех антибактериальных препаратов (2,8%). Даже в отсутствие очага инфекции температура и лабораторные маркеры воспаления в крови у больных с длительным нарушением сознания были выше референсных показателей. СРБ увеличивался при присоединении всех бактериальных осложнений. Количество лейкоцитов достоверно повышалось только с развитием пневмонии и сепсиса. Прокальцитониновый тест был положительным в 16,6% случаев инфекций мочевыводящих путей, 30,4% пневмоний и 28% менинговентрикулитов.Заключение: наиболее информативным провоспалительным маркером в диагностике бактериальных осложнений у больных с длительным нарушением сознания оказался С-реактивный белок. Слабо выраженная лейкоцитарная реакция может объясняться иммуносупрессией у длительно болеющих пациентов. Ограниченная ценность прокальцитонина обусловлена недостаточной чувствительностью полуколичественного метода с пороговым уровнем 0,5 нг/мл, а также сниженным провоспалительным ответом на локальную инфекцию у пациентов с длительным нарушением сознания в результате массивной антибактериальной терапии, колонизации условно-патогенной флоры, наличия симпатикотонии (неинфекционной системной воспалительной реакции).

Використання низькоінтенсивного лазерного випромінення та імуномодуляторів в комплексному лікуванні хронічного тонзиліту

При лечении хронического тонзиллита во время обострения использовали комплексную терапию, включающую использование иммуномодуляторов «Имупрет» и «Лимфомиозот», а также лазерного облучения миндалин и подчелюстных лимфоузлов. Применение комплексной терапии позволило уменьшить частоту осложнений и достичь быстрого обратного регресса симптомов заболевания.Complex therapy was used in treatment of chronic tonsillitis in worsening. The therapy included laser radiation low intensity and immunomodulator medications such as “Imupret”® and “Limphomyosot”®. Using of complex therapy reduced quantity of complications and brought to quick regress of the clinical manifestations.При лікуванні хронічного тонзиліту під час загострення використовувалась комплексна терапія, що включала використання імуномодуляторів «Імупрет» та «Лімфоміозот», а також лазерного опромінення мигдаликів та підщелепних лімфовузлів. Застосування комплексної терапії дозволило зменшити частоту ускладнень та досягти швидкого зворотнього регресу симптомів захворювання

Constraining modern day silicon cycling in Lake Baikal

Constraining the continental silicon cycle is a key requirement in attempts to understand both nutrient fluxes to the ocean and linkages between silicon and carbon cycling over different timescales. Silicon isotope data of dissolved silica (δ30SiDSi) are presented here from Lake Baikal and its catchment in central Siberia. As well as being the world's oldest and voluminous lake, Lake Baikal lies within the seventh largest drainage basin in the world and exports significant amounts of freshwater into the Arctic Ocean. Data from river waters accounting for c. 92% of annual river inflow to the lake suggest no seasonal alteration or anthropogenic impact on river δ30SiDSi composition. The absence of a change in δ30SiDSi within the Selenga Delta, through which 62% of riverine flow passes, suggest a net balance between biogenic uptake and dissolution in this system. A key feature of this study is the use of δ30SiDSi to examine seasonal and spatial variations in DSi utilisation and export across the lake. Using an open system model against deep water δ30SiDSi values from the lake, we estimate that 20-24% of DSi entering Lake Baikal is exported into the sediment record. Whilst highlighting the impact that lakes may have upon the sequestration of continental DSi, mixed layer δ30SiDSi values from 2003 and 2013 show significant spatial variability in the magnitude of spring bloom nutrient utilisation with lower rates in the north relative to south basin