CLINICAL AND MORPHOLOGICAL PARRALLELS IN THE COURSE OF RESPIRATORY SARCOIDOSIS

Sarcoidosis is a systemic disease characterized by the development of chronic immune inflammation and formation of granulomas. It is important to know clinical, morphological and immunologic variants of the course of this disease in order to investigate the pathomorphologic parameters of the granuloma.Of late negative trends have been observed in the changes of sarcoidosis pathomorphology. Due to the above it is important to investigate predictors for the course of this disease, including specific parameters of granulematous inflammatory process in various clinical variants not only from the point of view of diagnostics but further management tactics for those suffering from this disease

STUDY OF THE EFFECT OF HYPOTHERMIC CONSERVATION ON THE INTRACELLULAR SODIUM CONCENTRATION IN THE ENDOTHELIUM OF CORNEAL TRANSPLANTS

Endothelial keratoplasty has become the treatment of choice for corneal endothelial dysfunction. Advancements in the surgical treatment of corneal endothelial diseases depend on progress in graft conservation and its related advantages in assessing the suitability of grafts for transplantation. Transport of water and ions by cornea endothelium is important for the optic properties of cornea. In this work, we study the intracellular sodium concentration in cornea endothelial cells in samples of pig cornea that underwent hypothermic conservation for 1 and 10 days and endothelial cells of human cornea grafts after 10-day conservation. The concentration of intracellular sodium in preparations of endothelial cells was assayed using fluorescent dye SodiumGreen. The fluorescent images were analyzed with the custom-made computer program CytoDynamics. An increased level of intracellular sodium was shown in the endothelium after 10-day conservation in comparison with one-day conservation (pig samples). Sodium permeability of pig endothelial cell plasma membranes significantly decreased in these samples. Assessment of intracellular sodium in human cornea endothelium showed a higher level – as was in analogues pig samples of the corneal endothelium. The assay of the intracellular sodium balance concentration established in endothelial cells after hypothermic conservation in mediums L-15 and Optisol-GS showed a significant advantage of specialized me dium Optisol-GS. The balanced intracellular concentration after 10 days of hypothermic conservation was significantly lower in cells incubated at 4 °C in Optisol-GS (L-15, 128 ± 14,  n = 15; Optisol-GS, 108 ± 14, n = 11; mM, p < 0.001). Intracellular sodium concentration could be a useful parameter for assessing cornea endothelium cell viability

Роль и оценка психоэмоционального состояния у пациентов с нарушениями ритма сердца

The aim is to study the influence and assessment of mental and emotional states in patients with arrhythmias.Materials and methods. Literature search was performed using the following resources: PubMed, Web of Science, Scopus, as well as in the search system Google Scholar by the key words “psychoarrhythmology”, “neural-cardiac axis”, “psychocardiology”, “arrhythmogenesis”, and “stress-induced arrhythmia”. Articles should be freely available and should represent the most relevant information on the topic. Studies were selected by the largest sample and citation index.Results. In this review of studies on the correlation of psychosocial factors and constitutional features of personality in patients with arrhythmias, the available data on the pathogenesis of cardiac pathology, including the main arrhythmological disorders in nervous excitation caused by negative emotions and stress are presented. The article also reflects the importance of a multidisciplinary approach to risk prediction, potential risk modifiers and approaches to the treatment of cardiac pathology, taking into account the psycho-emotional state of the patient.Conclusion. Reducing the severity of the disease requires a comprehensive approach, in particular, psychodiagnostics, psychocorrection, psychotherapy and psychopharmacotherapy. Further development of this approach to this problem will lead to the creation of new programs for early diagnosis, prevention and treatment of cardiac pathology. Цель – изучение вопроса влияния и оценки психоэмоционального состояния у пациентов с нарушениями ритма сердца.Материалы и методы. Поиск литературы производился по базам данных PubMed, Web of Science, Scopus, а также в системе Google Scholar по ключевым словам «психоаритмология», «нервно-кардиальная ось»,  психокардиология», «аритмогенез». Статьи должны были находиться в свободном доступе и представлять собой наиболее актуальную информацию по теме. Исследования отбирались по принципу наибольшей выборки и индекса цитирования.Результаты. В обзоре исследований о корреляции психосоциальных факторов и конституциональных особенностей личности у пациентов с нарушениями ритма приведены имеющиеся данные о патогенезе развития кардиальной патологии, в том числе основных аритмологических нарушениях в условиях нервного возбуждения, вызванного негативными эмоциями и стрессом. Отражена важность мультидисциплинарного подхода к прогнозированию риска, описаны потенциальные модификаторы риска и подходы к лечению кардиальной патологии с учетом психоэмоционального состояния пациента.Выводы. Снижение тяжести заболевания требует комплексного подхода, в частности психодиагностики, психокоррекции, психотерапии и психофармакотерапии. Дальнейшее развитие такого подхода к данной проблеме нарушений ритма требует создания новых программ ранней диагностики, профилактики и лечения кардиальной патологии

Клинико-функциональные особенности течения саркоидоза органов дыхания в реальной практике

As a rule, heart damage in patients with sarcoidosis of respiratory organs (SOD) is not diagnosed in time, so a very important and urgent task is to identify common heart rhythm and conduction disorders.The aim of the study was to investigate the main clinical manifestations of sarcoidosis in SOD, depending on the peculiarities of the disease course and to compare the frequency and severity of pulmonary and extrapulmonary manifestations of sarcoidosis, including myocardial lesions and electrocardiographic (ECG) signs of heart rhythm disorders.Methods. In the period 2006– 2016, the pilot open prospective uncontrolled study conducted at the Pulmonology Department of the Regional State Autonomous Healthcare Institution "Tomsk Regional Clinical Hospital" included patients (n = 84) aged 20–67 years with the diagnosis of SOD. Patients were divided into 2 clinical groups: the 1st comprised 45 (53.5%) patients with a favorable course of sarcoidosis, the second one included 39 (46.4%) patients with an unfavorable course of the disease. A full range of studies was carried out, including the analysis of medical history and clinical and epidemiological data, instrumental methods (including ECG and Holter ECG monitoring (HM), pathomorphological study of lung biopsy samples.Results. According to the data of frequency analysis of occurrence of pulmonary and extrapulmonary clinical manifestations in ODS, it was shown that the leading clinical manifestations, most frequently occurring in patients of both groups, included asthenia syndrome (72.6%), bronchial syndrome (66.7%) and fever syndrome (33%). In 33% of cases, clinical manifestations of myocardial damage were detected. In 41 (51.2%) patients in both groups, changes on ECG were recorded at rest. Regardless of the course of the disease, in 23.5% of patients of both clinical groups, according to the results of the HM ECG, rhythm and conduction disturbances were found – a combination of ventricular arrhythmias and conduction disorders (ventricular extrasystole and right His bundle branch block of various degrees) and a combination of supraventricular arrhythmias and conduction disturbances (supraventricular extrasystole and right His bundle branch block of various degrees).Conclusion. Thus, regardless of the severity of the disease course, SOD patients are concerned about complaints from both respiratory system and extrapulmonary manifestations, including cardiac complaints, as well as heart rhythm and conduction disorders (according to the results of ECG and HM ECG), the frequency of which, according to the comparative analysis, has not significantly changed in both clinical groups, which indicates the non-specific character of clinical manifestations. Как правило, поражение сердца у больных саркоидозом органов дыхания (СОД) своевременно не диагностируется, поэтому весьма важной и актуальной задачей является обнаружение часто встречающихся нарушений сердечного ритма и проводимости.Целью исследования явились изучение основных клинических проявлений при СОД в зависимости от особенностей течения заболевания и сравнительная оценка частоты и тяжести легочных и внелегочных проявлений саркоидоза, включая поражения миокарда и электрокардиографические (ЭКГ) признаки нарушений сердечного ритма.Материалы и методы. В период 2006–2016 гг. в пилотное открытое проспективное неконтролируемое исследование, проведенное в отделении пульмонологии на базе Областного государственного автономного учреждения здравоохранения «Томская областная клиническая больница», были включены пациенты (n = 84) в возрасте 20– 67 лет с диагнозом СОД. Больные были распределены на 2 клинические группы: 1-ю составили 45 (53,5 %) пациентов с благоприятным течением саркоидоза, 2-ю – 39 (46,4 %) больных с неблагоприятным течением заболевания. Проведен полный спектр исследований, включая анализ анамнестических и клинико-эпидемиологических данных, инструментальные методы (включая ЭКГ и холтеровское мониторирование (ХМ) ЭКГ), патоморфологическое исследование биоптатов легких.Результаты. По данным частотного анализа встречаемости легочных и внелегочных клинических проявлений при СОД показано, что ведущими клиническими проявлениями, встречающимися наиболее часто у пациентов обеих групп, являлись синдромы астении (72,6 %), бронхитический синдром (66,7 %), синдром лихорадки (33 %). В 33 % случаев выявлены клинические проявления поражения миокарда. У 41 (51,2 %) пациента в обеих группах в состоянии покоя зафиксированы изменения на ЭКГ. Независимо от течения заболевания, у 23,5 % больных обеих клинических групп по результатам ХМ ЭКГ обнаружены нарушения ритма и проводимости – сочетание желудочковых аритмий и нарушений проводимости (желудочковая экстрасистолия и блокада правой ножки пучка Гиса разной степени) и сочетание наджелудочковых аритмий и нарушений проводимости (суправентрикулярная экстрасистолия и блокада правой ножки пучка Гиса разной степени).Заключение. Таким образом, независимо от тяжести течения заболевания, больных СОД беспокоят жалобы как со стороны дыхательной системы, так и внелегочные проявления, включая кардиальные, а также нарушения ритма сердца и проводимости (по результатам ЭКГ и ХМ ЭКГ), частота встречаемости которых, по результатам сравнительного анализа, в обеих клинических группах достоверно не изменялась, что свидетельствует о неспецифичности клинических проявлений.

Flax Noils as a Source of Cellulose for the Production of Lyocell Fibers

The production of long flax fiber for the subsequent production of textile yarn is accompanied by the formation of a significant amount of waste—noils, which is a mechanical mixture of long and short flax fibers and shives. Comparative studies of the structure and chemical composition of the fibrous fraction of noils and shives were carried out using IR spectroscopy. The solubility of shives and flax noils in N-methylmorpholine-N-oxide (NMMO) was studied, a comparative analysis of the rheological behavior of solutions of flax and wood cellulose was carried out and the optimal temperature–concentration conditions for obtaining flax fibers from noils were determined. It was shown for the first time that using the method of solid-phase activation of the cellulose-solvent system makes it possible to obtain fibers in a short period of time (no more than 10 min). The structure of both the raw material and the resulting fibers was studied by X-ray diffraction analysis. The thermal properties of a new type of cellulose fibers was evaluated. The complex of the conducted studies allows us to consider flax fibers from noils along with flax fibers from long-staple flax, as a real alternative to fibers from wood pulp

The role and assesment of mental and emotional state in patients with arrhythmias

The aim is to study the influence and assessment of mental and emotional states in patients with arrhythmias.Materials and methods. Literature search was performed using the following resources: PubMed, Web of Science, Scopus, as well as in the search system Google Scholar by the key words “psychoarrhythmology”, “neural-cardiac axis”, “psychocardiology”, “arrhythmogenesis”, and “stress-induced arrhythmia”. Articles should be freely available and should represent the most relevant information on the topic. Studies were selected by the largest sample and citation index.Results. In this review of studies on the correlation of psychosocial factors and constitutional features of personality in patients with arrhythmias, the available data on the pathogenesis of cardiac pathology, including the main arrhythmological disorders in nervous excitation caused by negative emotions and stress are presented. The article also reflects the importance of a multidisciplinary approach to risk prediction, potential risk modifiers and approaches to the treatment of cardiac pathology, taking into account the psycho-emotional state of the patient.Conclusion. Reducing the severity of the disease requires a comprehensive approach, in particular, psychodiagnostics, psychocorrection, psychotherapy and psychopharmacotherapy. Further development of this approach to this problem will lead to the creation of new programs for early diagnosis, prevention and treatment of cardiac pathology