Роль преморбидного фона в танатогенезе острых отравлений психофармакологическими препаратами у геронтологических больных

Background Human aging is a universal and regular process characterized by uneven and steady progression, inevitably affecting to some extent all levels of biological organization. In the structure of acute exotoxicosis, patients of gerontological age range from 10.3 to 12.9%. After 60, with an increase of years, there is a growth of mortality rate from 9.8% in elderly patients to 25.5% in long-livers. A certain role in its genesis is played by the premorbid background, i.e. somatic diseases preceding and accompanying acute exotoxicosis.Aim of study To identify the role of concomitant diseases in the course and outcome of acute poisoning by psychoactive drugs in patients over 60. MATErIALS AnD METhODS We retrospectively analyzed hospital records of 99 patients aged 60 to 90 years who died from poisoning with psychoactive drugs at the N.V. Sklifosovsky Research Institute for Emergency Medicine in 2013–2016, as well as their autopsy, forensic and histological research data.Results In gerontological patients with acute poisoning with psychoactive drugs, the main premorbid background (100%) is atherosclerotic lesion of the heart and vessels of different degree and extent. In case of lethal outcomes, in toxicogenic stage of poisoning on primary electrocardiograms, myocardial ischemia was revealed in 76.9% of cases, heart rhythm disturbances were detected in all patients, most often in the form of supraventricular extrasystoles (38.4%) and atrial fibrillation (23.1%). In the deceased patients during the somatogenic stage of poisoning, cardiac conduction disorders (31.3%) prevailed. Concomitant chronic lesions of the bronchopulmonary system, including terminal bronchi, contributed to the development of hypostatic pneumonia and its long, migratory course. In 50% of cases, large and small droplet fatty liver disease was detected, which could have a negative effect on the course of poisoning, altering biotransformation of toxicants.Conclusion Atherosclerotic lesion of the heart and vessels, as well as chronic bronchopulmonary disease and fatty liver disease are the main premorbid background factors, which have a negative effect on the course and outcome of acute poisoning with psychoactive drugs.Актуальность Старение человека — это универсальный и закономерный процесс, характеризующийся неравномерностью и неуклонным прогрессированием, неизбежно затрагивающий в той или иной степени все уровни биологической организации. В структуре острых экзотоксикозов пациенты геронтологического возраста составляют от 10,3 до 12,9%. После 60 лет с увеличением возраста отмечается рост летальности от 9,8% у пожилых больных до 25,5% у долгожителей. Определенную роль в ее генезе играет преморбидный фон, т.е. соматические заболевания, предшествующие и сопутствующие острым экзотоксикозам.Цель исследования. Выявить роль сопутствующих заболеваний в течении и исходе острых отравлений психофармакологическими препаратами у больных старше 60 лет.Материал и методы. Проведен ретроспективный анализ «Карты стационарного больного» 99 пациентов в возрасте от 60 до 90 лет, умерших от отравлений психофармакологическими препаратами в НИИ СП им. Н.В.Склифосовского в период с 2013 по 2016 год, актов вскрытия, судебно-химического и судебно-гистологического исследований.Результаты. У геронтологических больных с острыми отравлениями психофармакологическими препаратами основным преморбидным фоном (100%) является атеросклеротическое поражение сердца и сосудов различной степени и протяженности. При смертельных исходах в токсикогенной стадии отравления на первичных электрокардиограммах в 76,9% случаев определяется ишемия миокарда, у всех больных выявлены нарушения сердечного ритма, наиболее часто в виде наджелудочковых экстрасистол (38,4%) и мерцательной аритмии (23,1%). У умерших в соматогенной стадии отравления преимущество имеют нарушения сердечной проводимости (31,3%). Сопутствующие хронические поражения бронхолегочной системы, включая терминальные бронхи, способствуют развитию гипостатических пневмоний и их длительному, мигрирующему течению. В 50% наблюдений выявлена крупно- и мелкокапельная жировая дистрофия печени, которая может оказывать негативное влияние на течение отравления, изменяя биотрансформацию токсикантов.Заключение. Атеросклеротическое поражение сердца и сосудов, а также хроническое поражение бронхолегочной системы и жировая дистрофия печени являются основным преморбидным фоном, оказывающим негативное влияние на течение и исход острых отравлений психофармакологическими препаратами

IMMUNOLOGICAL TOLERANCE IN ORGAN TRANSPLANTATION

Modeling of  immune tolerance will  eliminate the  need  for  taking medications to prevent rejection. This  review of available literature covers the immune mechanisms of allograft rejection and the ways of tolerance induction. The role of mesenchymal stem  cells and using them for tolerance development have been discussed. The authors also draw attention to the fact  that  blood transfusion from an organ donor  leads to a decreased  intensity of the immune response to donor cells in transplantation

СИНДРОМ ЛАЙЕЛЛА В СУДЕБНО-МЕДИЦИНСКОЙ И ПАТОЛОГО- АНАТОМИЧЕСКОЙ ПРАКТИКЕ

We report 9 clinicopathologic cases of Lyell’s syndrome, known as toxic epidermal necrolysis (TEN). Five deceased patients had dermal exposure to cow parsnip, grey mercury ointment or whitening agents. In 4 cases, TEN developed in the course of drug treatment as a part of polytherapy, and in one of them it was accompanied with the infection. All of TEN patients suffered from acute or chronic diseases, endogenous or exogenous intoxication, immunodeficiency.Приводятся 9 клинико-морфологических наблюдений синдрома Лайелла (токсического эпидермального некролиза, ТЭН). У 5 умерших были перкутанные варианты ТЭН в результате контакта с борщевиком, серой ртутной мазью, белилами. В 4 наблюдениях причиной ТЭН были лекарственные средства при политерапии и в одном из них в сочетании с инфекцией. У всех пациентов ТЭН развился на фоне хронических и острых заболеваний, эндо- и экзотоксикозов, иммунодефицита

Treatment of Open-Angle Glaucoma and Ocular Hypertension with Preservative-Free Tafluprost/Timolol Fixed-Dose Combination Therapy : The VISIONARY Study

Funding Information: Funding was provided by Santen SA for the study, medical writing services and Rapid Service Fees. All authors had full access to all of the data in this study and take complete responsibility for the integrity of the data and accuracy of the data analysis. The contribution of IRCCS Fondazione Bietti to this work was supported by the Italian Ministry of Health and by Fondazione Roma. Publisher Copyright: © 2020, The Author(s). Copyright: Copyright 2020 Elsevier B.V., All rights reserved.Introduction: A non-interventional, multicenter, European, prospective evaluation of the effectiveness, tolerability, and safety of a topical preservative-free tafluprost (0.0015%) and timolol (0.5%) fixed-dose combination (PF tafluprost/timolol FC) in adults with open-angle glaucoma (OAG) and ocular hypertension (OHT) demonstrating insufficient response to topical beta-receptor blockers or prostaglandin analogue (PGA) monotherapy. Methods: Mean intraocular pressure (IOP) change from baseline was measured at study visits following a switch to PF tafluprost/timolol FC. Primary endpoint was absolute mean IOP change at month 6. Change from baseline concerning ocular signs and symptoms was also explored. Results: Analyses included 577 patients (59.6% female). Mean age (SD) was 67.8 (11.67) years. Mean (SD) IOP reduction from baseline was significant at all study visits; 5.4 (3.76) mmHg (23.7%) at week 4, 5.9 (3.90) mmHg (25.6%) at week 12, and 5.7 (4.11) mmHg (24.9%) at month 6 (p < 0.0001 for all visits). At month 6, 69.2%, 53.6%, 40.0%, and 25.8% were responders based on ≥ 20%, ≥ 25%, ≥ 30%, and ≥ 35% cutoff values for mean IOP, respectively. Significant reductions were observed concerning corneal fluorescein staining (p < 0.0001), dry eye symptoms, irritation, itching, and foreign body sensation (p < 0.001 for each parameter). Conjunctival hyperemia was significantly reduced at all study visits (p < 0.0001 at each visit). Overall, 69 treatment-related adverse events (AEs) were reported, one of which was serious (status asthmaticus). Most AEs were mild to moderate in severity, and the majority had resolved or were resolving at the end of the study period. Conclusion: In clinical practice, PF tafluprost/timolol FC provided statistically and clinically significant IOP reductions in patients with OAG and OHT insufficiently controlled on or intolerant to PGA or beta-receptor blocker monotherapy. The full IOP reduction appeared at week 4 and was maintained over the 6-month study period. Key symptoms of ocular surface health improved. Trial Registration: European Union electronic Register of Post-Authorisation Studies (EU PAS) register number, EUPAS22204.publishersversionPeer reviewe

Трансарктика-2019: зимняя экспедиция в Северный Ледовитый океан на НЭС «Академик Трёшников»

Preliminary results of the Transarktika-2019 winter expedition in the Arctic Ocean on the R/V “Akademik Tryoshnikov” are presented. The expedition program included studies on meteorology, hydrology, hydrochemistry, hydrobiology, geology, geophysics and an extensive complex of ice measurements in the Northern Barents Sea from the drifting ice and from the ship. During the expedition, it was possible to complete a wide range of tasks. The data obtained comprise a unique material for a comprehensive study of the current state of the environmental conditions in the Barents Sea. This paper highlights the most significant preliminary results of multidisciplinary observations in various environments, which will be further comprehensively analyzed and published in separate thematic articles.Представлены предварительные результаты зимней экспедиции «Трансарктика-2019» в Северном Ледовитом океане на НЭС «Академик Трёшников». Программа экспедиции включала в себя исследования по метеорологии, гидрологии, гидрохимии, гидробиологии, геологии, геофизике и обширному комплексу измерений ледяного покрова в северной части Баренцева моря с дрейфующего льда и с борта судна. Во время экспедиции удалось выполнить широкий круг задач. Полученные данные представляют собой уникальный материал для всестороннего изучения текущего состояния условий окружающей среды в Баренцевом море. В статье обозначены наиболее значимые предварительные результаты междисциплинарных наблюдений в различных средах, которые в дальнейшем будут всесторонне проанализированы и опубликованы в отдельных тематических статьях

Современные данные о патогенезе и лечении гипоксически-ишемических поражений головного мозга у новорожденных

Hypoxic-ischemic brain lesions in children are the main environmental (non-genetic) factor in forming severe neurological pathology with subsequent disability. Scientists see the improvement of therapeutic approaches in acute phase of the disease as a main way to reduce the severity of neurologic complications. Due to the achievements in neuroscience in the field of perinatal hypoxicischemic injury mechanisms, three energy phases of pathologic events deployment were identified: primary (up to 6 hours from the lesion), secondary (6 to 24–48 h after the lesion) and distal tertiary (during few weeks, months). At the same time, necrosis, apoptosis, glutamate excitotoxicity, oxidative stress, inflammation, angiogenesis and neurogenesis make up separate links of destruction process. On the basis of new data on the pathogenesis of the disease, scientists from different countries have already offered modern treatment methods for perinatal hypoxic-ischemic injury with erythropoietin, allopurinol, melatonin, N-acetylcysteine, magnesium sulphate, albumin, -interferon, as well as with the help of controlled hypothermia, xenon, the use of stem cells, etc. This article presents a review of new data on pathogenesis and promising treatment methods for perinatal hypoxic-ischemic injuries.Гипоксически-ишемические поражения головного мозга у детей являются главным средовым (негенетическим) фактором формирования у них тяжелой неврологической патологии с последующей инвалидизацией. В качестве основного пути снижения тяжести неврологических осложнений ученые видят совершенствование лечебных подходов в острый период заболевания. Благодаря достижениям нейронауки в области изучения механизмов гипоксически-ишемических перинатальных повреждений (ГИПП) были определены три энергетические фазы развертывания патологических событий: первичная (до 6 ч с момента поражения), вторичная (от 6 до 24–48 ч от момента поражения) и отдаленная третичная (в течение нескольких недель-месяцев). При этом некроз, апоптоз, глутаматная эксайтотоксичность, окислительный стресс, воспаление, ангио- и нейрогенез составляют отдельные звенья процесса поражения. На основании новых данных о патогенезе заболевания ученые разных стран уже предложили современные методы лечения ГИПП препаратами эритропоэтина, аллопуринола, мелатонина, N-ацетилцистеина, сульфата магния, альбумина, -интерферона, а также при помощи управляемой гипотермии, ксенона, использования стволовых клеток и др. В статье представлен обзор новых данных о патогенезе и перспективных методах лечения ГИПП

Clinical features of post-COVID-19 period. Results of the international register “Dynamic analysis of comorbidities in SARS-CoV-2 survivors (AKTIV SARS-CoV-2)”. Data from 6-month follow-up

Aim. To study the clinical course specifics of coronavirus disease 2019 (COVID-19) and comorbid conditions in COVID-19 survivors 3, 6, 12 months after recovery in the Eurasian region according to the AKTIV register. Material and methods.The AKTIV register was created at the initiative of the Eurasian Association of Therapists. The AKTIV register is divided into 2 parts: AKTIV 1 and AKTIV 2. The AKTIV 1 register currently includes 6300 patients, while in AKTIV 2 — 2770. Patients diagnosed with COVID-19 receiving in- and outpatient treatment have been anonymously included on the registry. The following 7 countries participated in the register: Russian Federation, Republic of Armenia, Republic of Belarus, Republic of Kazakhstan, Kyrgyz Republic, Republic of Moldova, Republic of Uzbekistan. This closed multicenter register with two nonoverlapping branches (in- and outpatient branch) provides 6 visits: 3 in-person visits during the acute period and 3 telephone calls after 3, 6, 12 months. Subject recruitment lasted from June 29, 2020 to October 29, 2020. Register will end on October 29, 2022. A total of 9 fragmentary analyzes of the registry data are planned. This fragment of the study presents the results of the post-hospitalization period in COVID-19 survivors after 3 and 6 months. Results. According to the AKTIV register, patients after COVID-19 are characterized by long-term persistent symptoms and frequent seeking for unscheduled medical care, including rehospitalizations. The most common causes of unplanned medical care are uncontrolled hypertension (HTN) and chronic coronary artery disease (CAD) and/or decompensated type 2 diabetes (T2D). During 3- and 6-month follow-up after hospitalization, 5,6% and 6,4% of patients were diagnosed with other diseases, which were more often presented by HTN, T2D, and CAD. The mortality rate of patients in the post-hospitalization period was 1,9% in the first 3 months and 0,2% for 4-6 months. The highest mortality rate was observed in the first 3 months in the group of patients with class II-IV heart failure, as well as in patients with cardiovascular diseases and cancer. In the pattern of death causes in the post-hospitalization period, following cardiovascular causes prevailed (31,8%): acute coronary syndrome, stroke, acute heart failure. Conclusion. According to the AKTIV register, the health status of patients after COVID-19 in a serious challenge for healthcare system, which requires planning adequate health system capacity to provide care to patients with COVID-19 in both acute and post-hospitalization period

Combining data from different sampling methods to study the development of an alien crab Chionoecetes opilio invasion in the remote and pristine Arctic Kara Sea

Data obtained using three different types of sampling gear is compared and combined to assess the size composition and density of a non-indigenous snow crab population Chionoecetes opilio in the previously free of alien species Kara Sea benthos. The Sigsbee trawl has small mesh and catches even recently settled crabs. The large bottom trawl is able to catch large crabs, but does not retain younger crabs, due to its large mesh. Video sampling allows the observation of larger crabs, although some smaller crabs can also be spotted. The combined use of such gear could provide full scope data of the existing size groups in a population. The density of the crabs was calculated from the video footage. The highest figures were in Blagopoluchiya Bay at 0.87 crabs/m2, where the settlement seems to be reaching its first peak of population growth after the introduction. High density in the Kara Gates Strait at 0.55 crabs/m2, could be due to the close proximity of the Barents Sea from where the crabs can enter by both larval dispersal and active adult migration. All size groups have been present in most sampled areas, which suggest successful settlement and growth of crabs over a number of years. Again, this was not the case in Blagopoluchiya Bay with high density of small crabs (<30 mm CW), which confirms its recent population growth. Male to female ratio was strikingly different between the bays of the Novaya Zemlya Archipelago and west of the Yamal Peninsula (0.8 and 3.8 respectively). Seventy five ovigerous females were caught in 2016, which confirms the presence of a reproducing population in the Kara Sea. The spatial structure of the snow crab population in the Kara Sea is still in the process of formation. The presented data indicates that this process may lead to a complex system, which is based on local recruitment and transport of larvae from the Barents Sea and across the western Kara shelf; formation of nursery grounds; active migration of adults and their concentration in the areas of the shelf with appropriate feeding conditions

The Role of Premorbid Background in Tanatogenesis of Acute Poisonings with Psychoactive Drugs in Gerontological Patients

Background Human aging is a universal and regular process characterized by uneven and steady progression, inevitably affecting to some extent all levels of biological organization. In the structure of acute exotoxicosis, patients of gerontological age range from 10.3 to 12.9%. After 60, with an increase of years, there is a growth of mortality rate from 9.8% in elderly patients to 25.5% in long-livers. A certain role in its genesis is played by the premorbid background, i.e. somatic diseases preceding and accompanying acute exotoxicosis.Aim of study To identify the role of concomitant diseases in the course and outcome of acute poisoning by psychoactive drugs in patients over 60. MATErIALS AnD METhODS We retrospectively analyzed hospital records of 99 patients aged 60 to 90 years who died from poisoning with psychoactive drugs at the N.V. Sklifosovsky Research Institute for Emergency Medicine in 2013–2016, as well as their autopsy, forensic and histological research data.Results In gerontological patients with acute poisoning with psychoactive drugs, the main premorbid background (100%) is atherosclerotic lesion of the heart and vessels of different degree and extent. In case of lethal outcomes, in toxicogenic stage of poisoning on primary electrocardiograms, myocardial ischemia was revealed in 76.9% of cases, heart rhythm disturbances were detected in all patients, most often in the form of supraventricular extrasystoles (38.4%) and atrial fibrillation (23.1%). In the deceased patients during the somatogenic stage of poisoning, cardiac conduction disorders (31.3%) prevailed. Concomitant chronic lesions of the bronchopulmonary system, including terminal bronchi, contributed to the development of hypostatic pneumonia and its long, migratory course. In 50% of cases, large and small droplet fatty liver disease was detected, which could have a negative effect on the course of poisoning, altering biotransformation of toxicants.Conclusion Atherosclerotic lesion of the heart and vessels, as well as chronic bronchopulmonary disease and fatty liver disease are the main premorbid background factors, which have a negative effect on the course and outcome of acute poisoning with psychoactive drugs