54 results match your criteria: "E. N. Meshalkin National Medical Research Center[Affiliation]"

Background: Surgical ablation of atrial fibrillation has been the most efficient treatment for atrial fibrillation (AF). Combined energy (CE) ablation and cryoablation alone (CA) are the most common energy modes used for ablation, however, comparative data is lacking.

Objectives: To compare the efficacy of CE ablation with CA in the setting of concomitant biatrial ablation for non-paroxysmal AF.

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Influence of radical prostatectomy on miRNA dynamics in urine extracellular vesicles.

Urol Oncol

November 2024

Laboratory of Molecular Medicine, Institute of Chemical Biology and Fundamental Medicine, Siberian Branch, Russian Academy of Sciences, Novosibirsk, Russia; Oncology Department, E.N. Meshalkin National Medical Research Center of the Ministry of Health of the Russian Federation, Novosibirsk, Russia.

Purpose: Cancer statistics demonstrate leading growth of prostate cancer. As a rule, radical prostatectomy (RP) is a mandatory option in the treatment of localized prostate cancer (PCa). Over 30% of patients develop biochemical resistance after the surgery and over 30% of these patients experience prostate cancer recurrence and metastasis.

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Glucocorticoids are used during glioblastoma treatment to prevent the cerebral edema effect surrounding normal brain tissue. The aim of our study was to investigate the long-term effects of multiple administrations of glucocorticoids onto the glycosylated components (proteoglycans and glycosaminoglycans) of normal brain extracellular matrix and the glucocorticoid receptor (GR, ) in an experimental model . Two-month-old male C57Bl/6 mice (n = 90) were injected intraperitoneally with various doses of dexamethasone (DXM) (1; 2.

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Article Synopsis
  • A recent study evaluated the effectiveness of second-generation carotid stents (SGS) compared to traditional single-layer stents and carotid endarterectomy (CEA), finding that SGS can lead to better outcomes in certain cases.
  • Data from over 100,000 patients indicated that specific SGS designs, like Casper/Roadsaver and CGuard, significantly reduced the risk of death, stroke, and myocardial infarction compared to CEA, while Gore stent outcomes were generally poorer.
  • Overall, the findings suggest that certain SGS types may offer advantages over CEA, but the performance varies by stent design, highlighting the need for cautious interpretation and consideration of individual patient circumstances.
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Purpose of the study - to assess the level of cognitive disorders in gerontological patients of the urological profile, depending on the use of sedation in the intraoperative period. A prospective cohort study was performed on 60 gerontological patients diagnosed with BPH II-III stages. Two groups were formed: conscious patients and patients using sedation.

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Glioblastoma (GB) is an aggressive cancer with a high probability of recurrence, despite active chemoradiotherapy with temozolomide (TMZ) and dexamethasone (DXM). These systemic drugs affect the glycosylated components of brain tissue involved in GB development; however, their effects on heparan sulfate (HS) remain unknown. Here, we used an animal model of GB relapse in which SCID mice first received TMZ and/or DXM (simulating postoperative treatment) with a subsequent inoculation of U87 human GB cells.

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Plasma concentrations of cytokines and metabolic hormones and their association with vulnerable atherosclerotic plaques were studied in 36 overweight men (age 40-77 years; BMI 25.0-29.9 kg/m) with coronary atherosclerosis who underwent coronary endarterectomy.

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This paper focuses on the surface modification of the Ti-6Al-4V alloy substrate via a-C:H:SiO coating deposition. Research results concern the a-C:H:SiO coating structure, investigated using transmission electron microscopy and in vitro endothelization to study the coating. Based on the analysis of the atomic radial distribution function, a model is proposed for the atomic short-range order structure of the a-C:H:SiO coating, and chemical bonds (C-O, C-C, Si-C, Si-O, and Si-Si) are identified.

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Purpose: Severe community-acquired pneumonia (sCAP) is associated with high morbidity and mortality, and whilst European and non-European guidelines are available for community-acquired pneumonia, there are no specific guidelines for sCAP.

Methods: The European Respiratory Society (ERS), European Society of Intensive Care Medicine (ESICM), European Society of Clinical Microbiology and Infectious Diseases (ESCMID), and Latin American Thoracic Association (ALAT) launched a task force to develop the first international guidelines for sCAP. The panel comprised a total of 18 European and four non-European experts, as well as two methodologists.

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Article Synopsis
  • Severe community-acquired pneumonia (sCAP) lacks specific international guidelines, prompting a task force from major European and Latin American respiratory societies to create the first set of recommendations.
  • The task force, including experts from various fields, addressed eight key clinical questions regarding sCAP diagnosis and treatment through systematic literature reviews and meta-analyses, assessing evidence quality with the GRADE system.
  • The resulting guidelines offer evidence-based recommendations on diagnosis, antibiotic use, and treatment strategies for sCAP, while also identifying existing knowledge gaps and suggesting areas for future research.
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Objective: To study cognitive functions in patients with chronic thromboembolic pulmonary hypertension (CTEPH) before and in the long-term after pulmonary thromboendarterectomy and to study factors that negatively affect cognitive status.

Material And Methods: One hundred and twenty-four patients with CTEPH were examined before and 6 months after surgery with an assessment of cognitive impairment using the Mini-Mental State Examination (MMSE). Multivariate regression analysis was used to identify factors affecting the MMSE indicators before and in the long-term postoperative periods.

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Titanium oxynitride coatings deposited by reactive magnetron sputtering improve biocompatibility of vascular stents by increasing NO production, viability, and adhesion of EA.hy926 cells. Thus, the application of titanium oxynitride coatings is a promising strategy for increasing the biocompatibility of nitinol stents.

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Huge cerebral pial arteriovenous fistula in a newborn: illustrative case.

J Neurosurg Case Lessons

October 2022

1Department of Endovascular Neurosurgery, Federal Center of Brain Research and Neurotechnologies, Federal Biomedical Agency of Russian Federation, Moscow, Russian Federation.

Article Synopsis
  • Pediatric arteriovenous malformations (AVMs) and arteriovenous fistulas (AVFs) in children are rare yet serious conditions that can lead to heart failure and strokes.
  • The case study describes the successful endovascular treatment of a unique AVF in a newborn, which involved embolizing the connection between the basilar artery and a dilated deep cerebral vein.
  • After the procedure, the infant showed no signs of developmental delays and had normal blood flow restoration, highlighting that subtotal coiling can lead to positive outcomes in such high-flow vascular issues.
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Background: Postoperative acute kidney injury (AKI) is frequent in cardiac surgery patients. Its pathophysiology is complex and involves decreased renal perfusion. Preliminary clinical evidence in critically ill patients shows that amino acids infusion increases renal blood flow and may decrease the incidence and severity of AKI.

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Background: Single-cohort studies suggest that second-generation stents (SGS; “mesh stents”) may improve carotid artery stenting (CAS) outcomes by limiting peri- and postprocedural cerebral embolism. SGS differ in the stent frame construction, mesh material, and design, as well as in mesh-to-frame position (inside/outside). Objectives: To compare clinical outcomes of SGS in relation to first-generation stents (FGSs; single-layer) in CAS.

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Imprinted X chromosome inactivation (iXCI) balances the expression of X-linked genes in preimplantation embryos and extraembryonic tissues in rodents. Long noncoding Xist RNA drives iXCI, silencing genes and recruiting Xist-dependent chromatin repressors. Some domains on the inactive X chromosome include repressive modifications specific to constitutive heterochromatin, which show no direct link to Xist RNA.

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Differential diagnosis of thyroid gland neoplasms is an urgent problem in modern oncothyroidology. This is especially true for the diagnosis of follicular thyroid cancer and follicular thyroid adenoma at the preoperative stage. In this study, in silico methods were used to search for potential markers that are microRNA target genes.

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In our previous study, we showed that discarded cardiac tissue from the right atrial appendage and right ventricular myocardium is an available source of functional endothelial and smooth muscle cells for regenerative medicine and tissue engineering. In the study, we aimed to find out what benefits are given by vascular cells from cardiac explants used for seeding on vascular patches engrafted to repair vascular defects . Additionally, to make the application of these cells safer in regenerative medicine we tested an approach that arrested mitotic division to avoid the potential tumorigenic effect of dividing cells.

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Background: Improvements in drug-eluting stent design have led to a reduced frequency of repeat revascularisation and new biodegradable polymer coatings may allow a shorter duration of dual antiplatelet therapy (DAPT) after percutaneous coronary intervention (PCI).

Aims: The Improved Drug-Eluting stent for All-comers Left Main (IDEAL-LM) study aims to investigate long-term clinical outcomes after implantation of a biodegradable polymer platinum-chromium everolimus-eluting stent (BP-PtCr-EES) followed by 4 months DAPT compared to a durable polymer cobalt-chromium everolimus-eluting stent (DP-CoCr-EES) followed by 12 months DAPT in patients undergoing PCI of unprotected left main coronary artery (LMCA) disease.

Methods: This is a multicentre randomised clinical trial study in patients with an indication for coronary artery revascularisation who have been accepted for PCI for LMCA disease after Heart Team consultation.

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Intensive adjuvant radiotherapy (RT) is a standard treatment for glioblastoma multiforme (GBM) patients; however, its effect on the normal brain tissue remains unclear. Here, we investigated the short-term effects of multiple irradiation on the cellular and extracellular glycosylated components of normal brain tissue and their functional significance. Triple irradiation (7 Gy*3 days) of C57Bl/6 mouse brain inhibited the viability, proliferation and biosynthetic activity of normal glial cells, resulting in a fast brain-zone-dependent deregulation of the expression of proteoglycans (PGs) (decorin, biglycan, versican, brevican and CD44).

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One of the challenges of modern biology and medicine is to visualize biomolecules in their natural environment, in real-time and in a non-invasive fashion, so as to gain insight into their physiological behavior and highlight alterations in pathological settings, which will enable to devise appropriate therapeutic strategies. Genetically encoded fluorescent biosensors constitute a class of imaging agents that enable visualization of biological processes and events directly in situ, preserving the native biological context and providing detailed insight into their localization and dynamics in cells. Real-time monitoring of drug action in a specific cellular compartment, organ, or tissue type; the ability to screen at the single-cell resolution; and the elimination of false-positive results caused by low drug bioavailability that is not detected by in vitro testing methods are a few of the obvious benefits of using genetically encoded fluorescent biosensors in drug screening.

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Randomized Controlled Trial of Conventional Versus MicroNet-Covered Stent in Carotid Artery Revascularization.

JACC Cardiovasc Interv

November 2021

Jagiellonian University, Department of Cardiac and Vascular Diseases, John Paul II Hospital, Krakow, Poland. Electronic address:

Objectives: The aim of this study was to compare procedure-related ipsilateral cerebral embolism with a conventional (Acculink, Abbott Vascular) versus a MicroNet-covered (CGuard, InspireMD) stent in carotid artery stenting (CAS).

Background: The MicroNet-covered stent may reduce periprocedural cerebral embolism in CAS, but level 1 evidence is lacking.

Methods: A total of 100 consecutive patients were randomized 1:1 to filter-protected CAS using the Acculink or the CGuard device.

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Wilson's disease is a rare autosomal recessive disorder of copper metabolism. The copper accumulation in the viscera appears due to the functional impairment of copper-transporting ATPase, which is encoded by the ATP7B gene. In this study, PBMCs of a patient with two ATP7B mutations were reprogrammed.

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