A CLINICAL CASE OF ACUTE ALLERGIC MYOCARDITIS SIMULATING MYOCARDIAL INFARCTION

Objective: to describe a clinical case of evolving acute eosinophilic myocarditis simulating coronary heart disease. Subjects and methods. Patient B. aged 62 years was admitted to Intensive Care Unit Fifteen, N.I. Pirogov First Moscow City Clinical Hospital, by being transferred from Thailand with a referral diagnosis of acute myocardial infarction made on November 1, 2012, with complaints of pressing and aching heart pains. At a Phuket hospital, his electrocardiogram recorded atrial fibrillation; indirect cardiac massage, electric pulse therapy, and mechanical ventilation were performed. After being admitted to the N.I. Pirogov First Moscow City Clinical Hospital, the patient underwent examination: estimation of laboratory indicators over time, electrocardiography (ECG), echocardiography, Holter ECG monitoring, and myocardial scintigraphy. Results. The patient had a history of an allergic reaction as urticaria to the ingestion of fish products. His examination showed practically all diagnostic criteria for allergic myocarditis: hypereosinophilia (the admission level of eosinophils was 9% with their further normalization); the characteristic clinical presentation of myocarditis (pressing retrosternal pain); elevated levels of cardiac specific enzymes (creatinine phosphokinase-MB, lactate dehydrogenase, troponin T); ECG changes – myocardial hypokinesis in the acute period, followed by its pattern normalization. of the pattern. Myocardial scintigraphy (by taking into account the fact that the patient had had a new allergic reaction episode, the investigators decided not to perform coronary angiography) revealed decreased radiopharmaceutical accumulation in the lower left ventricular wall in the right coronary arterial bed; perfusion remained in the other myocardial walls. Conclusion. This clinical case reflects the specific features of the course of and difficulties in the diagnosis of acute allergic myocarditis that, in most cases, has no specific clinical manifestations and may mimic different diseases

A Hydride Route to Ternary Alkali Metal Borides: A Case Study of Lithium Nickel Borides

Ternary lithium nickel borides LiNi3B1.8 and Li2.8Ni16B8 have been synthesized by using reactive LiH as a precursor. This synthetic route allows for the better mixing of the precursor powders, thus facilitating fast preparation of the alkali metal containing ternary borides. This method is suitable for “fast screening” of multicomponent systems comprised of elements with drastically different reactivities. Crystal structures of the compounds LiNi3B1.8 and Li2.8Ni16B8 were reinvestigated by combination of X‐ray single crystal/synchrotron powder diffraction data, solid state 7Li and 11B NMR, and scanning transmission electron microscopy which allow determination of fine structural details including split position of Ni sites and ordering of B vacancies. Field dependent and temperature dependent magnetization measurements are consistent with spin glass behavior for both samples

Risk of Venous Thromboembolic Complications in Patients with Atrial Fibrillation: a Systematic Review and Meta-analysis

Aim: The aim of this meta-analysis and systematic review was to evaluate the possible connection between AF and VTE.Material and methods. Atrial fibrillation (AF) and atrial flutter (AFL) contribute to intra-atrial blood stasis which leads to thrombus formation with its embolization. There is some evidence that AF can be a risk factor for deep vein thrombosis (DVT) and pulmonary embolism (PE). The following databases were searched: PubMed (MEDLINE), EMBASE, Google Scholar, the Cochrane Central Register of Controlled Trials. The time frame for conducting a systematic literature search ranged from January 1, 1990 to November 1, 2021. The diagnosis of atrial fibrillation had to be confirmed by using ECG. The diagnosis of VTE could be made with Doppler imaging, ventilation/perfusion scan, CT angiography, venography, angiography or autopsy. Only the three studies with 102192 patients meeting the requirement were included in the meta-analysis.Results. The prevalence of DVT and PE were assessed using incidence rate ratios (IRR) method of the inverse variance random effects model and its 95% confidence interval (CI). The significant association between atrial fibrillation and pulmonary embolism was found (IRR, 4.18 95% Cl 1.958.98). Also there is obvious association between DVT and AF (IRR, 2.97 95% Cl 2.18-4.03).Conclusion. It can be concluded that the increased risk of developing VTE is associatedwith concomitant AF

Epidemiological Situation on Crimean-Congo Hemorrhagic Fever in the Russian Federation in 2012 and Prognosis for 2013

Represented is epidemiological evaluation of the morbidity rate as regards Crimean-Congo hemorrhagic fever (CCHF) in Russia in 2012. Summarized are the results of epizootiological surveillance over the territory of CHF natural focus in the South of European part of Russia. Forecast of CCHF epidemiological situation development for 2013 is made based on the epizootiological monitoring data

Influence of occupational risk for shoulder pain syndromes

One-stage cross-sectional observation of prevalence shoulder pain syndrome was investigated. The observed 6094 workers were divided into four groups. The highest prevalence index of SP were registered in the в first group - 32,9% Workers exposed to toxic effects of fluoride and physical strain, the lowest - in the 3-rd group - 6,9% without the impact of toxic action. The highest relative risk of SP progress was observed in the 1st group in the relation to 4th (5,67) and 3rd groups (5,24), at the same time etiological fraction was 77.5% and 78,7%, it indicates very high influence of labour conditions on prevalence of shoulder pain syndrome.На основании одномоментного кросс - секционного обследования 6094 работающих в различных условиях труда изучена распространенность болевого синдрома плеча у 1819 (29,8%) женщин и 4275 (70,2%) мужчин. Получены данные о повышенной распространенности болевого синдрома плеча у работающих в условиях физического перенапряжения и токсического действия фторидов (32,9%), а также в условиях токсического воздействия фторидов по сравнению с работающими только в условиях физического перенапряжения (6,9%) и без воздействия «вредных» производственных факторов. В первой группе наиболее высокий относительный риск развития БСП по отношению к 4-ой группе (5,6) и 3-ей (5,2), при этом этиологическая фракция составила соответственно 77.5% и 78,7%, что свидетельствует об очень высокой степени связи нарушения здоровья с условиями труда, в данном случае - с воздействием комплекса факторов: физического перенапряжения и токсического воздействия фторидов. Из анализируемых «непроизводственных» показателей в большей степени повышают риск развития БСП сопутствующая патология бронхолегочной системы и шейный остеохондроз

Варианты создания гетеротопических и ортотопических PDX-моделей колоректального рака человека

Aim. To create heterotopic and orthotopic patient-derived xenograft (PDX) models of colorectal cancer (CRC) by transplantation of patient’s tumor samples into immunodeficient BALB / c Nude mice.Materials and methods. The study was performed on 15 female BALB / c Nude mice aged 6–8 weeks weighing 21–25 g. All animals underwent transplantation of the tumor material obtained from CRC patients into the following sites: heterotopic transplantation (under the skin of the thigh and into the omentum), orthotopic transplantation (into the descending and ascending colon and into the cecum). Weight and general condition of the animals and the size of the tumor nodule had been monitored for 80 days. The success of each model was assessed by the degree of engraftment, the dynamics of tumor growth, and the reproducibility of histopathologic characteristics. At the end of the experiment, the animals were euthanized by cervical dislocation.Results. 100% survival of the animals and similar tumor growth dynamics in the xenograft models were observed throughout the experiment. The analysis of histologic specimens obtained from the xenografts and patient’s tumor showed their correspondence to moderately differentiated intestinal adenocarcinoma. The main advantages and disadvantages of different variants of PDX models were described.Conclusion. Heterotopic and orthotopic PDX models reproduce the morpho-histologic characteristics of human tumors and demonstrate stable growth dynamics. Therefore, they are a suitable tool for the development, testing, and validation of potential anticancer drugs.Цель. Создание гетеротопических и ортотопических моделей ксенографтов колоректального рака (КРР), полученных от пациентов (Patient-derived xenograft, PDX-модель), путем трансплантации образцов опухоли пациента иммунодефицитным мышам линии Balb/c nude.Материалы и методы. Проведено исследование на 15 самках мышей линии Balb/c nude, возраст 6–8 нед, масса тела 21–25 г. Всем животным проведена трансплантация опухолевого материала, взятого от пациентов с КРР, в следующие сайты: гетеротопические (под кожу бедра, в сальник); ортотопические (в нисходящий и восходящий отделы толстой кишки, в слепую кишку). В течение 80 сут у животных контролировали следующие параметры: массу тела, общее состояние, объем опухолевого узла. Успешность каждой из моделей оценивали по степени приживления, динамике опухолевого роста и воспроизводимости гистопатологических характеристик. По завершению эксперимента животным выполнена эвтаназия методом цервикальной дислокации.Результаты. На протяжении всего эксперимента наблюдалась 100%-я выживаемость животных и схожая динамика роста ксенографтов. Анализ гистологических препаратов ксенографтов и опухоли пациентов показал их соответствие умеренно дифференцированной аденокарциноме кишки. Описаны основные преимущества и недостатки создания различных вариантов PDX-моделей.Заключение. Гетеротопические и ортотопические PDX-модели воспроизводят морфогистологические признаки человеческой опухоли и обладают устойчивой динамикой роста, следовательно, являются подходящим инструментом для разработки, тестирования и валидации потенциальных лекарственных препаратов против рака

Peculiar Aspects of Epidemiological Situation on Crimean Hemorrhagic Fever in the Russian Federation in 2011

Outlined is the analysis of epidemiological and epizootiological situation on Crimean hemorrhagic fever (CHF) in the south of the Russian Federation in 2011. Discussed are the causes of nosocomial outbreak of CHF at the Salsk district central hospital, the Rostov Region. Prognostication on CHF situation for 2012 is made based on the epizootiological monitoring

Клініко-лабораторні особливості хворих з коморбідністю бронхіальної астми та ожиріння

Актуальність роботи обумовлена збільшенням поширеності фенотипу бронхіальної астми з ожирінням та його більш важким перебігом. Мета роботи – дослідити вплив надлишкової маси тіла на параметри клініко-лабораторного стану хворих на бронхіальну астму. Обстежено 132 хворих на бронхіальну астму (76 жінок та 56 чоловіків), віком 35–60 років, 30 хворих з нормальною вагою та 102 хворих з індексом маси тіла від 25,0 кг/м2 і більше. Встановлено, що хворі на бронхіальну астму з надлишковою вагою мають більшу тривалість захворювання (на 28,6 %) та прийому кортикостероїдів (на 27,0 %), вищий серцево-судинний ризик, асоційований з підвищенням рівня діастолічного артеріального тиску (на 5,3 %), зниженням ліпопротеїдів високої щільності (на 65,7 %), підвищенням ліпопротеїдів низької щільності (на 13,2 %) та рівня глюкози (на 5,1 %), збільшенням інтерлейкіну-6 (на 31,8 %). Виявлені кореляції надмірної ваги у хворих на бронхіальну астму з віком, показниками спірометрії та рівнем контролю симптомів.The relevance of the study is due to the increased prevalence of the phenotype of bronchial asthma with obesity and its more severe course. The purpose of the study was to investigate the effect of excess body weight on the parameters of the clinical and laboratory condition of patients with bronchial asthma. 132 patients with bronchial asthma (76 women and 56 men), aged 35– 60 years, 30 patients with normal weight and 102 patients with a body mass index of 25.0 kg/m2 and more were examined. It was found that overweight patients with bronchial asthma have a longer duration of the disease (by 28.6 %) and corticosteroids (by 27.0 %), higher cardiovascular risk associated with increased diastolic blood pressure (by 5.3 %), decreased high-density lipoprotein (by 65.7 %), an increase in low-density lipoprotein (by 13.2 %) and glucose levels (by 5.1 %), an increase in interleukin-6 (by 31.8 %). Overweight correlations with age, spirometry, and symptom control were found in patients with asthma