Experience of Military Medicine in the Fight against the New Coronavirus Infection.

The results achieved by the medical service of the Armed Forces of the Russian Federation to overcome the new coronavirus infection are presented. The high efficiency of the established unified system of biological safety and strict ranking of the priorities of anti-epidemic measures is shown. The experience of organizing traveling medical and nursing teams, as well as temporary military medical units on the territory of Russia, as well as in foreign countries, is demonstrated. Among the priority scientific results of military doctors, especially noteworthy is the study of the world's first COVID-19 vaccine Sputnik V, its immunogenicity, the effectiveness of its use in previously ill patients and revaccination, as well as the use of immune plasma from those who have been ill and vaccinated. By the examples of organized military groups and the general population, the features of the formation of herd immunity have been studied. Military doctors were the first in the country to show the effectiveness of hormone therapy in the treatment of coronavirus infection and to study its effects. They carried out ultrastructural studies of the life cycle of the virus. It is shown that the system of comprehensive measures implemented by military medicine determined a lower incidence of new coronavirus infection among the personnel of the Ministry of Defense of Russia and a lower mortality among the military.

[Optimization of neonatal hospital care for very preterm babies while supporting early parent-child relationships]. / Optimizatsiya vykhazhivaniya nedonoshennykh novorozhdennykh na gospital'nykh etapakh rannei pomoshchi pri podderzhke detsko-roditel'skikh otnoshenii.

Research shows that not only medical but also psychological factors such as parents' emotional state, their parenting skills, quality of very early relationships with the infant influence child's physical and mental health and development. The support of good infant-mother relationships is an essential part of early family-centered help to premature babies. The article reviews existing evidence-based programs of neonatal care and support of early mother-child relationships for preterm babies at the hospital. It covers three main directions: discussing with parents prognosis of a child's health and development; supporting natural conditions of child development, and including parents into child early care and observation. Data presented in the article shows that if using each of the mentioned above directions that are important for quality early care and interaction, positive dynamics is seen both on parents' and preterm infant's side. Designated programs can be widely implemented in neonatal intensive care units for children born before term, including those with extremely low body weight when they achieve clinical stabilization. The material presented in the article may be used as the scientific base for implementing in Russian Federation early care system both at the hospital level and, later, in the family environment. It also constitutes new directions for research of preterm babies and their parents.

[COVID-19 in haemodialysis patients: result analysis of the first year of the pandemic].

BACKGROUND: Present concepts of the novel coronavirus infection prognosis in haemodialysis (HD) patients are rather controversial. There is little information on therapy efficiency and safety in such patients. We studied COVID-19 course specifics, prognostic factors associated with fatal outcomes, therapy efficiency and its transformation at different stages of the pandemic first year. MATERIALS AND METHODS: Single-centre retrospective uncontrolled study included 653 COVID-19 HD-patients treated at Moscow City Nephrology Centre from April 1 to December 31, 2020. RESULTS: This period mortality rate was 21.0%. Independent predictors of COVID-19 unfavourable outcome in HD patients were pulmonary lesion extension (CT grades 34), high comorbidity index, and mechanical ventilation. Approaches to COVID-19 treatment modified significantly at different periods. Immunomodulatory drugs (monoclonal antibodies to IL-6, corticosteroids) were used largely at later stages. With tocilizumab administration, mortality was 15.1%, tocilizumab together with dexamethasone 13.3%; without them 37.8% (р0,001). Tocilizumab administration in the first 3 days after hospitalization of patients with CT grades 12 was associated with more favourable outcomes: 1 out of 29 died vs 6 out of 20 (tocilizumab administered at later periods); p0.04. There was no significant difference in death frequency in patients with CT grades 34 depending on tocilizumab administration time. CONCLUSION: COVID-19 in HD patients can manifest in a severe course with unfavourable outcome. It is urgent to identify reliable disease outcome predictors and develop efficient treatment in this population.

[Changes in the intestinal microbiota as a risk factor for dyslipidemia, atherosclerosis and the role of probiotics in their prevention].

The review presents an analysis of studies on the role of the intestinal microbiota and microbiome in lipid metabolism and the development of dyslipidemia, atherosclerosis and cardiovascular diseases. The role of the intestine as a metabolic organ with a multifactorial strain evolution, involved in lipid metabolism, cholesterol homeostasis and enterohepatic circulation is shown. The influence of microbial imbalance on the development of dyslipidemia and atherosclerosis is considered. Special attention is paid to preventive therapy with hypolipidemic probiotics. It is shown that the use of probiotics with hypolipidemic properties and consisting of a mixture of such strains asLactobacillus plantarumCECT7527, CET7528 and CECT7529, mixtures ofLactobacillus acidophilusLa-5,Bifidobacterium lactisBB-12,Bifidobacterium animalis lactisBB-12 contribute to reducing the level of LDL-C, CCS, TG, are safe and well tolerated, can be used as an adjuvant non-drug therapy in combination with hypolipidemic drugs for dyslipidemia, multifocal atherosclerosis.

Disseminated form of the Kaposi sarcoma in HIV-negative patient associated with Hodgkin's lymphoma.

We report a case of a 35-year-old, non-HIV-infected male diagnosed simultaneously with a disseminated form of Kaposi's sarcoma (KS; skin, stomach and colon are involved) and Hodgkin's lymphoma. There is no sign of changes in the immune status, but three herpes viruses were detected in the patient's blood (EBV, HHV6 and HHV8). He received ABVD chemotherapy and achieved complete metabolic remission for Hodgkin's lymphoma. Moreover, the signs of the disseminated KS were resolved. Our observations indicate that a combination of distinct types of viruses may play an important role in triggering the development of angio- and lymphoproliferative disorders in the same person. In addition, treatment with chemotherapy cycles, which included doxorubicin and vinblastine, led to the stable remission of both diseases.

[Cysts of septum pellucidum, cavum vergae and cavum veli interpositi. Meta-analysis of 368 cases]. / Kisty prozrachnoi peregorodki, polosti Verge i promezhutochnogo parusa. Metaanaliz 368 klinicheskikh sluchaev.

OBJECTIVE: To review and systematize literature data on the incidence of cysts of septum pellucidum, cavum vergae and cavum veli interpositi, their clinical manifestations, indications for surgical treatment and optimal surgical approach. MATERIAL AND METHODS: An analysis included 72 manuscripts devoted to epidemiology, pathophysiology, clinical symptoms and results of surgical treatment of brain cysts. Case reports, series of cases, reviews and original studies were analyzed. RESULTS: Septum pellucidum cavity is always formed throughout an embryogenesis and persists in 20.34% of adults. Cavum vergae is observed in 2.32% of adults. Cyst of septum pellucidum is detected in 0.04% of adults. Analysis of 368 cases of cysts of septum pellucidum, cavum vergae and cavum veli interpositi has shown that clinical picture consists of headache (50% of cases), convulsive syndrome (23.6%), reduced intelligence (20.1%), behavioural disorders (15.8%), dizziness, nausea and vomiting (10.9%). Hydrocephalus occurs in 16.6% of cases. Endoscopic wall fenestration is preferred for cyst management. CONCLUSION: Brain cysts are rare and characterized by non-specific clinical manifestations. Symptomatic cyst is an indication for surgical treatment. Surgical treatment usually ensures regression of symptoms and low risk of complications.

[The Distinguish Method of Severe Aortic Stenosis Treatment Geriatric High Mortality Risk Patients].

Aim To improve quality of treatment for senile patients with pronounced aortic stenosis (AS).Material and methods Aortic valve stenosis (AS) is the most common valve pathology in cardiosurgical patients. Surgical correction of aortic valve (AV) stenosis accounts for 10 to 22 % of open-heart operations. 125 patients with pronounced AS were treated in the N. N. Burdenko Main Military Clinical Hospital between 2010 and 2017. This study was based on the implementation of new, minimally invasive methods in our clinic in 2013: balloon aortic valvuloplasty (BAVP) of the aortic valve and transcatheter aortic valve prosthesis (TCAVP).Results In the group of patients receiving the drug therapy alone, the in-hospital mortality was 2 %. At the time of maximum follow-up duration (3 years), the survival rate was 50.5 %. In the group of patients who underwent the AV replacement with extracorporeal circulation, the 3 year postoperative mortality was 16.6 %. There was no 3 year mortality in the group of patients who underwent TCAVP. The short-term beneficial effect of BAVP was confirmed.Conclusion An algorithm was developed for medical care of patients older than 75 with pronounced AS; the place of BAVP in the step-by-step management of these patients was determined. Using the developed approach in the management of these patients provided a 32 % (p<0.05) increase in the number of cases of radical surgical care.

[Mothers' emotional states and characteristics of early interaction with their prematurely born babies]. / Osobennosti émotsional'nogo sostoianiia materei v aspekte ikh rannego vzaimodeistviia s nedonoshennymi det'mi.

Advanced technologies of neonatal reanimation and intensive care have led to the increase in the number of children with the extremely low and low birth weight. These children constitute a risk group often having severe development complications and disabilities. This article provides a review of the existing research literature on emotional states of mothers of prematurely born infants' and characteristics of their early interaction. The data on the influence of the mother's emotional state on her interaction with her prematurely born infant and its impact on the child's long-term development are presented. The authors present directions of studying development of prematurely born infants, which are not fully reflected in the literature, regarding infants with structural intracranial changes (intraventricular hemorrhages) and associated hydrocephalus and posthemorrhagic hydrocephaly. New targets of practical work have been developed to improve the family-centered interdisciplinary support for children at infancy and early age.

[Therapeutic aspects of the choice of antithrombotic therapy in patients with multifocal lesions of peripheral arteries].

The article discusses the features of the development and course of the atherosclerotic process in various vascular basins. Variability of factors such as local hemodynamics, differences in the structure of the arteries can influence the formation of atherosclerotic plaque and the progression of the atherosclerotic process. A better understanding of the nature and causes of these differences can help improve the tactics of treatment and prevention of vascular complications. Analysis of the results of the COMPASS study (cardiovascular outomes for people using anticoagulation stategies - evaluation of cardiovascular outcomes in patients receiving anticoagulant therapy) showed for the first time the effectiveness of combination therapy using rivaroxaban direct anticoagulant at a dose of 2.5 mg 2 times a day in combination with acetylsalicylic acid at a dose of 100 mg per day. It was shown that, against the background of combination therapy, patients with coronary heart disease or atherosclerotic peripheral artery disease showed a significant decrease in the incidence of events of the primary end point of efficacy: a reduced risk of stroke, cardiovascular mortality and myocardial infarction, and also a reduction in the risk of major lower amputations extremities and total mortality in patients with stable forms of atherosclerosis. The emergence of combination therapy can help to achieve both an improvement in the overall prognosis and the prognosis of limb preservation in patients with multifocal arterial lesion.

[A rare concurrence of polymyalgia rheumatica and AA-amyloidosis]. / Redkoe sochetanie revmaticheskoi polimialgii s AA-amiloidozom.

Polymyalgia rheumatica (PMR) is a rare chronic inflammatory disease. It predominantly affects the elderly. The disease has a slow onset, pain and stiffness in the muscles of the shoulder and pelvic girdle, fever, weight loss, and a high acute-phase inflammatory response. The disease is concurrent with giant cell arteritis in a quarter of cases, which allows some authors to consider them as two different manifestations of the same pathological process. The kidneys are rarely involved. This disease is rarely complicated by AA amyloidosis. The authors describe a case of RPM in a patient who has developed secondary AA amyloidosis.

[HYPERTENSIVE CRISIS: MODERN VIEW OF THE PROBLEM AND OPTIMIZATION OF DIAGNOSTIC AND THERAPEUTIC MODALITIES].

The data collected by Burdenko Military Hospital indicate that in the 1980s hypertensive crisis (HC) occurred in roughly 30% of the patients with AH. This value fell down to 16% by 2012, with a rise in the number of uncomplicated crises from 46 to 62%. Analysis of the causes behind these changes showed that half of the patients simply experienced an elevated arterial pressure with minimal clinical symptoms. The decrease in the number of complicated cases from 54 to 39% is doubtful bearing in mind that ICD-10 gives the status of nosological entities to complications of hypertensive crisis (stroke, myocardial infarction, etc.) but not to the HC syndrome proper requiring urgent hospitalization; due to this hypertensive crisis itself tends to be disregarded and not included in statistics. HC with acute clinically significant lesions of target organs requires intensive care or resuscitation using infusion of vasodilators and loop diuretics to stabilize arterial pressure. In case of uncomplicted HC and aggravation of hypertensive disease, the medications of choice are oral short-acting ACE inhibitors and imidazoline receptor agonists.

[Expert approaches to chronic kidney disease].

Expert approaches to chronic kidney disease. The basic symptoms that indicate the presence of chronic kidney disease (CKD) are analysed. The authors present the modem classification of CKD, the characteristics of its stages, and requirements for the formulation of a diagnosis. The author's interpretation of the articles of the Regulations on military-medical examination, which are carried out survey of citizens subject to an initial statement on the military registration, conscription and reservists who have given pathology, is given. The necessity of the unification of expert approaches in military-medical and medical-social examination.

[Chronic HCV infection: An internist's opinion (Part 2)]. / Khronicheskaia HCV-infektsiia: vzgliad internista (II chast').

Hepatitis C virus (HCV) infection results in not only chronic hepatitis and subsequent complications as liver cirrhosis and hepatocellular carcinoma, but also in a significant number of other diseases, the so-called extrahepatic manifestations of chronic HCV infection. In addition to lymphoproliferative and autoimmune disorders discussed in Part 1 of this review, many other diseases turned to be associated with chronic HCV infection. Part 2 of this review is dedicated to the analysis of the relationship of chronic HCV-infection to the development of some endocrine diseases, such as thyroiditis and diabetes mellitus, and cardiovascular disorders. It also provides the characteristics of the currently available antiviral agents and considers whether they may be used in patents with extrahepatic manifestations of chronic HCV infection.

[Chronic hepatitis C virus infection: An internist's opinion (Part 1)]. / Khronicheskaia HCV-infektsiia: vzgliad internista (I chast').

Hepatitis C virus (HCV) infection results in not only chronic hepatitis and subsequent complications as liver cirrhosis and hepatocellular carcinoma, but also in a significant number of other diseases, the so-called extrahepatic manifestations of chronic HCV infection. This is because of viral hepatotropicity and lymphotropicity. The most striking example of the course of chronic HCV infection, in which the infectious and inflammatory processes are concurrent with autoimmune disorders and carcinogenesis, is mixed cryoglobulinemia and B-cell non-Hodgkin's lymphoma. The pathogenesis of these diseases is based on the clonal expansion of B cells, which occurs under their prolonged stimulation with the virus or viral proteins. Part 1 of this review is devoted to the analysis of a correlation of chronic HCV infection with lymphoproliferative and autoimmune disorders, as well as its association with kidney injury.

Moscow hospital school - a pionner of military-medical education in Russia.

The article is devoted to 310-anniversary of the publication of the decree of Peter I on the construction of a military hospital In ivioscow wnere in 1i wa opened a hospital school for 50 students for the training of doctors, which became the first regular medical educational institution in Russia. In 1786 hospital schools were reformed into hospital medical-surgical colleges and in 1798 two of them into the Medical-Surgical Academies. These medical institutions were the main in training of medical staff and played a significant role in medical ensuring in Russia in XVIII century. From the first days the Moscow hospital was a clinical institution, combining treatment and education. The Moscow hospital formed the basis for the Russian clinical medicine; hospital school graduates have made a great contribution to the organization and development of the Russian health care.

[Emergency state of health by arterial hypertension].

Emergency state of health by arterial hypertension. According to the Burdenko Main Military clinical hospital at the present time the frequency of crisis hypertensive heart disease is 16% from the total number of all patients with this nosology. Rapid relief of hypertensive crisis should be provided for patients' status assessment from the position of development of fatal complications. Herewith the main task when treating hypertensive crisis is not normotension, but reduction of blood pressure to safe level, taking into account potential risk of hypotonia and hypoperfusion in case of too aggressive hypotensive therapy. The main factor of hypertensive crisis development is the absence of compliance. The authors gave recommendations on treatment of complicated and non-complicated forms of hypertensive crisis, and provided indications for hospitalization.

[Clinical and prognostic aspects of pulmonary sarcoidosis in servicemen].

The authors analysed clinical, radiological and laboratory aspects of respiratory tract sarcoidosis in servicemen, analysed the quality of life, correlation analysis to determine the risk factors for relapse of the disease. It was found that respiratory tract sarcoidosis of I and II stage was diagnosed in 85.5% of servicemen; in 72% of servicemen prevails asymptomatic course of a disease. Despite the prevalence of asymptomatic forms of the disease, the quality of life of servicemen with sarcoidosis has reduced. The factors associated with recurrent disease: age > 35 years; the presence of clinical manifestations; forced vital capacity < 85% of predicted values; systemic glucocorticoid therapy in history. Designed range forecast recurrent course of sarcoidosis in young patients having a high predictive value.

Raman and surface-enhanced Raman scattering spectroscopy of bis-netropsins and their DNA complexes.

The interactions of three bis-netropsins (bis-Nts), which are potent catalytic inhibitors of DNA-binding enzymes, with three double-stranded oligonucleotides (OLIGs), which contain sites of different specific affinities for each bis-Nt, were analyzed. Raman spectroscopy was performed for selective monitoring of modifications of the bis-Nt or the OLIG structure upon bis-Nt-DNA binding, and surface-enhanced Raman scattering spectroscopy (SERS) was an additional tool for topology studies of ligand-DNA complexes. The spectral data showed conformational changes of both partners (bis-Nt and OLIG) upon complexation. Structural variations of bis-Nts appeared to be dependent on a bis-Nt-OLIG binding constant and were found to be small in the specific DNA binding and highest for nonspecific binding of bis-Nt with the corresponding OLIG. The conformational changes of the OLIGs were varied with a bis-Nt-OLIG binding constant in the same manner. The bis-Nts seemed to induce a perturbation in the OLIG's structure, as well as in the positions of their direct binding. These DNA structural modification effects may explain the inhibition of DNA-binding enzymes in the variety of very distinct DNA-enzyme binding sites by bis-Nts reported previously.

Raman and CD spectroscopy of recombinant 68-kDa DNA human topoisomerase I and its complex with suicide DNA-substrate.

N-terminally truncated recombinant 68-kDa human topoisomerase (topo) I exhibits the same DNA-driving activities as the wild-type protein. In the present study, Raman and circular dichroism techniques were employed for detailed structural characterization of the 68-kDa human topo I and its transformations induced by the suicide sequence-specific oligonucleotide (solig) binding and cleavage. Spectroscopic data combined with statistical prediction techniques were employed to construct a model of the secondary structure distribution along the primary protein structure in solution. The 68-kDa topo I was found to consist of ca. 59% alpha-helix, 24% beta-strand and/or sheets, and 17% other structures. A secondary structure transition of the 68-kDa topo I was found to accompany solig binding and cleavage. Nearly 15% of the alpha-helix of 68-kDa topo I is transferred within the other structures when in the complex with its DNA substrate. Raman spectroscopy analysis also shows redistribution of the structural rotamers of the 68-kDa topo I disulfide bonds and significant changes in the H-bonding of the Tyr residues and in the microenvironment/conformation of the Trp side chains. No structural modifications of the DNA substrate were detected by spectroscopic techniques. The data presented provide the first direct experimental evidence of the human topo I conformational transition after the cleavage step in the reaction of binding and cleavage of DNA substrate by the enzyme. This evidence supports the model of the enzyme function requiring the protein conformational transition. The most probable location of the enzyme transformations was the core and the C-terminal conservative 68-kDa topo I structural domains. By contrast, the linker domain was found to have an extremely low potential for solig-induced structural transformations. The pattern of redistribution of protein secondary structures induced by solig binding and covalent suicide complex formation supports the model of an intramolecular bipartite mode of topo I/DNA interaction in the substrate binding and cleavage reaction.