MORPHOFUNCTIONAL STATEOFKIDNEYS OF RATSAFTER INJECTIONOFPLACENTAL CRYOEXTRACT IN HEYMANN NEPHRITIS

Изучение иммунного механизма поражения почек на модели нефрита Хеймана (НХ), вызывающего изменения сосудов почечных клубочков, их морфологических и морфометрических показателей, представляют значительный интерес Цель работы: изучить влияние введения криоэкстракта аллогенной плаценты (КЭП) на функциональные и морфологические показатели почек при экспериментальном НХ. Материал и методы. Крысы-самцы 4-х месячного возраста были разделены на 3 группы: I – интактные; 2 – животные с моделью НХ; 3 – животные с моделью НХ, которым на 28 день после иммунизации 3 раза за неделю внутримышечно вводили КЭП. Животных 2-й и 3-й групп выводили из эксперимента на 45 и 60 сутки. Исследованы биохимические, функциональные и морфологические показатели почек на всех стадиях развития НХ и после введения КЭП. Результаты и их обсуждение. У животных 2 и 3 группы на 28-е сутки возрастало количество циркулирующих иммунных комплексов (ЦИК) в крови и иммунных депозитов на базальных мембранах клубочков, что сопровождалось нарушением их структуры и выделительной функции почек. Выявлены морфометрические различия в размерах клубочков в динамике НХ. Через 60 суток в ткани почек экспериментальных животных наблюдались признаки фокального мезангиального пролиферативного гломерулонефрита как при введении КЭП, так и без него. При введении КЭП отложения депозитов иммунных комплексов не обнаруживалось. Выводы: При НХ на 28 сутки отмечено возрастание ЦИК в крови, отложение депозитов иммунных комплексов на базальных мембранах капилляров клубочков, сужение их просвета и пролиферация мезангиоцитов, что сопровождалось нарушением выделительной функции почек. Введение КЭП нормализовывало функцію почек, снижало к 45 суткам уровни комплемента ЦИК до показателей нормы

Glaucoma "landscape" in Russia, CIS and Eastern European countries: what has changed over 15 years?

A.Yu. Brezhnev1, E.A. Egorov2, V.P. Erichev3, A.V. Kuroedov2,4, P.Ch. Zavadsky5, M. Bozic6, N.N. Voronova7, M.F. Dzhumova8, N.V. Ivanova7, T.A. Imshenetskaya9, T.G. Kamenskikh10, O.I. Lebedev11, L.N. Marchenko8, A.L. Onishchenko12, N.A. Sobyanin13, V.F. Ekgardt14 1Kursk State Medical University, Kursk, Russian Federation 2Pirogov Russian National Research Medical University, Moscow, Russian Federation 3Krasnov Research Institute of Eye Diseases, Moscow, Russian Federation 4P.V. Mandryka Military Clinical Hospital, Moscow, Russian Federation 5LLC "Ophthalmological Center of Karelia", Petrozavodsk, Russian Federation 6University Eye Clinic, University of Belgrade, Belgrade, Serbia 7V.I. Vernadsky Crimean Federal University, Simferopol, Russian Federation 8Belarusian State Medical University, Minsk, Belarus 9Belarusian Medical Academy of Post-Diploma Education, Minsk, Belarus 10V.I. Razumovskiy Saratov State Medical University, Saratov, Russian Federation 11Omsk State Medical University, Omsk, Russian Federation 12Novokuznetsk State Institute for Advanced medical Education — Branch of Russian Medical Academy of Continuous Professional Education, Novokuznetsk, Russian Federation 13F.Kh. Gral City Clinical Hospital No. 2, Perm, Russian Federation 14South Ural State Medical University, Chelyabinsk, Russian Federation Aim: to assess the changes in clinical and epidemiological characteristics, diagnostic and treatment options of primary open-angle glaucoma (POAG) in the Russian Federation and multiple near- and far-abroad countries over the period of 2005–2020. Patients and Methods: the final protocol of this retrospective multi-center research and clinical study included 289 patients with POAG from 7 states (Russia, Belarus, Serbia, Moldova, Kyrgyzstan, Slovakia, and Slovenia). The authors analyzed the methods used for establishing POAP diagnosis, clinical and demographic patient characteristics (gender, age and place of residence), as well as the process of glaucoma development (age of onset, disease duration and stages, intraocular pressure, ocular hypotensive medications, and the used laser and surgical procedures). All patients were divided into four groups depending on the time of making the initial diagnosis: 2004–2005, 2009–2010, 2014–2015, 2019–2020. Results: tonometry with Maklakov and Goldmann tonometers is still considered the gold standard for measuring intraocular pressure (IOP) (95% of cases). The percentage of pneumotonometry increased from 40% in 2005 to 60% in 2020. Approximately a third of clinics are still using electronic tonography as a supplementary method. Static automated perimetry is a basic tool for diagnosis and follow-up of patients with POAG (more than 95% of cases). Manual kinetic perimetry (Foerster's perimetry) is used in less than 10% of cases. Ophthalmoscopy (direct and binocular) was involved in the diagnostic process in all clinics and in all cases. The range of instrumental visualization technologies includes optical coherence tomography (OCT), Heidelberg Retina Tomography (HRT), and scanning laser polarimetry. Currently, OCT is utilized in 90% of clinics. It was found out that in 2005 the standard of initial POAG diagnosis encompassed a set of Maklakov/Goldmann tonometry, ophthalmoscopy and kinetic perimetry. In 2020, this list includes Maklakov/Goldmann tonometry, pneumotonometry as a supplemental tool, static automated perimetry, ophthalmoscopy and OCT. The percentage of newly diagnosed POAG at the early stage has increased twofold over the past 15 years (from 20% in 2005 to 38% in 2020). The mean age of patients at the time of initial POAG diagnosis in 2005 was 62 (52; 67) years, in 2020 — 65 (50; 70) years, respectively (р=0.694). The proportion of prostaglandins in medication therapy increased by 20% over the past 15 years, while the proportion of beta-blockers reduced by the same percentage. The use of cholinomimetic drugs was almost discontinued. The total number of glaucoma laser surgeries has grown, and in the last decade the top priority has been given to selective laser trabeculoplasty, while the share of argon laser trabeculoplasty has decreased by 10%. The rate of primary glaucoma surgeries (trabeculectomy) keeps going down. Conclusion: a gradual and consistent implementation of high-tech diagnostic methods (static automated perimetry and OCT) in the routine practice occurred over 2005–2020. Also, there was a clear trend in more extensive use of objective data. The evolution of pharmaceutical "landscape" in the disease management is associated with an increasing proportion of more effective and safe drugs (prostaglandin analogues) and a diminishing role of beta-blockers as drugs of choice for starting therapy. The share of glaucoma surgeries as a starting strategy of POAG management was running down steadily from 2005 to 2010. Keywords: glaucoma, intraocular pressure, tonometry, perimetry, optical coherence tomography, trabeculectomy. For citation: Brezhnev A.Yu., Egorov E.A., Erichev V.P. et al. Glaucoma "landscape" in Russia, CIS and Eastern European countries: what has changed over 15 years? Russian Journal of Clinical Ophthalmology. 2023;23(2):73–79 (in Russ.). DOI: 10.32364/2311-7729-2023-23-2-73-79.&nbsp; </p

Ультраструктура кардиомиоцитов крыс c экспериментальным инфарктом миокарда после индукции терапевтической гипотермии и введения мезенхимальных стромальных клеток

Trofimova, A. V., Chizh, N. A., Belochkina, I. V., Marchenko, L. N., Govorukha, T. P., Repin, N. V., & Sandomirsky, B. P. (2017). Cardiomyocyte Ultrastructure of Rats with Experimental Myocardial Infarction After Therapeutic Hypothermia and Mesenchymal Stromal Cell Administration. Problems of Cryobiology and Cryomedicine, 27(4), 334–347. https://doi.org/10.15407/cryo27.04.334We studied the ultrastructural changes in cardiomyocytes during necrosis development and re-modelling of the rat heart following experimental myocardial infarction (MI) and performing therapeutic hypothermia and administration of allogeneic mesenchymal stromal cells (MSCs). The infarction was provoked via ligation of left coronary artery. Therapeutic hypothermia was performed in cold chamber for 60 min achieving 4°C skin temperature in the collar zone. The suspension of allogeneic cryopreserved MSCs of placenta with 1.2 × 106 cells/ml concentration was intravenously administered. In the animals with MI treated with MSCs and a combination of MSCs and hypothermia we revealed the normalization of mitochondrial structure, appearance of small dense mitochondria, the presence of a large number of glycogen granules, testifying thereby to a sufficient oxygen supply into cardiomyocytes and activation of synthetic processes together with improved microcirculation under MSCs factors. The combination of therapeutic hypothermia with MSCs administration at the background of MI largely promoted the activation of compensatory-regenerative processes in cardiomyocytes.///////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////// Исследованы ультраструктурные изменения в кардиомиоцитах при развитии некроза и ремоделировании сердца крыс с экспериментальным инфарктом миокарда (ИМ) после индукции терапевтической гипотермии и введения аллогенных мезенхимальных стромальных клеток (МСК). Инфаркт моделировали путем перевязки левой коронарной артерии. Терапевтическую гипотермию проводили в холодовой камере в течение 60 мин при температуре кожи воротниковой зоны 4°С. Суспензию аллогенных криоконсервированных МСК плаценты с концентрацией 1,2 × 106 кл/мл вводили внутривенно однократно. В группах животных с введением МСК и сочетанным применением МСК и гипотермии на фоне ИМ были выявлены нормализация структуры митохондрий, появление мелких плотных митохондрий, наличие большого количества гранул гликогена, что свидетельствует о достаточном поступлении в кардиомиоциты кислорода и активизации синтетических процессов на фоне улучшения микроциркуляции под влиянием факторов МСК. Сочетание терапевтической гипотермии с введением МСК на фоне ИМ в большей степени способствовало активации компенсаторно-регенераторных процессов в кардиомиоцитах

Child health status — the future of the country (part 2)

The article deals with the problems of increasing the incidence and prevalence of childhood diseases during 1994–2016 against the background of a global reduction in the staffing of children’s specialists by 1.7 times, with an extremely inadequate supply of the regions of the South-East, Donetsk and Luhansk regions. All of this has a negative impact on the proper medical care of the child population, including the detection of childhood diseases. The authors substantiate the need to restore the personnel and material-technical potential of the pediatric service, the development of modern diagnostic and treatment technologies, the preservation of immunization and the prevention of disability of common childhood diseases that is an important component of the national health care and safety system of the country as a whole