111 research outputs found

    Relationship of erythrocyte adrenoreactivity with their quantitative and qualitative characteristics as a method for assessing the rheological properties of blood in athletes

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    Objective of the study: prediction of the rheological properties of blood in young men with different levels of motor activity (MA) by assessing the relationship between the adrenergic reactivity of erythrocytes (ARE) with their quantitative and qualitative parameters.Materials and methods: the study involved young men with a low (41 people) and a high level of physical activity (athletes — 20 people), aged 21–23 years. In all subjects, the total, individual characteristics of erythrocytes and ARE were determined. ERS was assessed by the change in the erythrocyte sedimentation rate (ESR) under the influence of adrenaline in vitro at final concentrations of 10–5; 10–6; 10–7; 10–8; 10–9; 10–11; 10–13 g/ml venous blood. According to the nature of the observed effect, in accordance with the direction of ESR shifts, 3 types of ARE were distinguished: increased ESR in the presence of adrenaline — aggregative (Ar, type 1); no changes — areactive (Ap, type 2); decreased ESR — antiaggregatory (AnAg, type 3).Results: in athletes, inverse correlations of the ARE types were established when exposed to stress concentrations of adrenaline (SCA) (above 10–8 g/ml) with the hemoglobin level (r = –0.59, p = 0.008), the average hemoglobin content in the erythrocyte (r = –0.55, p = 0.016), when exposed to physiological concentrations of adrenaline (PCA) (10–9 g/ml and below) — with the corpuscular volume of erythrocytes (r = –0.51, p = 0.029). In young men with a low level of MA, an inverse correlation was found between the minimum ARE values and the number of erythrocytes (r = –0.36, p = 0.01), and the maximum — with the average concentration of hemoglobin in the cell (r = 0.54, p = 0.04).Conclusion: in young men leading a sedentary lifestyle, the tendency of erythrocytes to aggregate under the influence of adrenaline increases with an increase in their number and intracellular viscosity. In athletes, the predominance of the antiaggregatory type of ARE, and, consequently, more stable rheological properties of erythrocytes and an improvement in microcirculation, are facilitated by a decrease in the size of erythrocytes and an average saturation of cells with hemoglobin

    Brief space and time characteristics of epizootic plague situation in Kazakhstan in 2011

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    The natural plague foci of Kazakhstan occupy a huge territory. The mapping of these foci is a very important part of the plague monitoring and has a scientific and practical meaning. The old paper mapped data have been obsolete and. all previous and. current data have been digitized now. The digitizing of the data was carried by ArcGIS program. The epidemiological and epizootological analysis of the data of 2012 showed that the Kazakh plague natural foci were active in that time. And the analysis showed that by the complex factors a more active and epidemic hazardous area was Qyzylorda Region

    Клинико-эпидемиологическая характеристика гепатитов В и дельта в Республике Дагестан

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    Aim: The analysis of the incidence of hepatitis B in the Republic of Dagestan (RD) and clinical and epidemiological characteristics of HBV/HDV coinfection in the region.Materials and Methods. The dynamics of the hepatitis B incidence rates and the coverage of vaccination against this infection in the RD in 2008-2022 were analyzed based on the data from of the statistical forms of Rospotrebnadzor. The clinical and epidemiological characteristics of delta hepatitis were analyzed in 371 patients under dispensary observation at the Republican Center for Infectious Diseases named after S.-А.М. Magomedov.Results. Over the past 10 years, the incidence of CHB in the RD has increased more than 4.5 times, from 1.4 per 100 thousand population in 2008 to 6.7 per 100 thousand population in 2022. A decrease in the rates of hepatitis B child immunization in the RD is observed since 2009. Hepatitis B vaccination coverage rates in adult population fell sharply after 2010, both in the RD and in the Russian Federation  on average. The frequency of HDV co-infection in persons infected with HBV in the RD is 13.8%, but reaches 15% in some regions of the republic, indicating the moderate level   of endemicity. Patients with HBV/HDV coinfection are predominantly males aged 25–45 years with advanced fibrosis or cirrhosis. All cases of HDV infection in the RD are caused by viral genotype 1.Conclusions. The obtained results testify to the significance of the problem of hepatitis B and delta in the RD. The number of identified patients and, accordingly, the rate of co-infection, apparently, will increase with the expansion of screening for markers of HDV infection, when patients who were registered as HBsAg carriers will be examined according to the patient routing guidelines. The late diagnosis of delta hepatitis in RD and the limited possibilities of antiviral therapy are another significant issues.Цель: анализ заболеваемости гепатитом В в Республике Дагестан и клинико-эпидемиологическая характеристика ко-инфекции HBV/HDV в регионе.Материалы и методы: проведен анализ динамики заболеваемости гепатитом В и охвата вакцинацией против этой инфекции в Республике Дагестан в 2008–2022 гг. по материалам форм статистического учета Роспотребнадзора. Проанализированы клинико-эпидемиологические  характеристики  гепатита   дельта  у 371 пациента, находящихся на диспансерном наблюдении в Республиканском центре инфекционных болезней им. С.-А.М. Магомедова.Результаты: за последние 14 лет заболеваемость хроническим гепатитом В в Республике Дагестан увеличилась более чем в 4,5 раза, с 1,4 на 100 тыс. населения в 2008 г. до 6,7 на 100 тыс. населения в 2022 г. Результаты анализа охвата вакцинацией против гепатита В свидетельствуют о снижении уровня иммунизации детского населения в Республике Дагестан после 2009 г. Показатели охвата вакцинацией против гепатита В взрослого населения резко упали после 2010 г., как в Республике Дагестан, так и в Российской Федерации в среднем. Частота ко-инфекции HDV у лиц, инфицированных HBV, в Республике Дагестан составляет 13,8%, но достигает 15% в отдельных районах республики, что позволяет отнести ее к регионам с умеренной эндемичностью. Среди пациентов с ко-инфекцией HBV/HDV преобладают мужчины в возрасте 25–45 лет, с продвинутыми стадиями фиброза или циррозом. Во всех случаях HDV-инфекция была вызвана 1 генотипом вируса.Заключение:  полученные  результаты  свидетельствуют о значимости проблемы гепатитов В и дельта в Республике Дагестан. Количество выявленных больных и, соответственно, показатель частоты ко-инфекции, повидимому, будут увеличиваться при расширении скрининга на маркеры HDV-инфекции, когда пациенты, находившиеся на диспансерном учете как носители HВsAg, будут обследованы по алгоритму согласно приказу о маршрутизации. Не меньшей проблемой является поздняя диагностика гепатита дельта в Республике Дагестан и ограниченные возможности противовирусной терапии

    Use of anticoagulants and antiplatelet agents in stable outpatients with coronary artery disease and atrial fibrillation. International CLARIFY registry

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    Cis-addition to?-3,4-epoxycarane

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