260 results match your criteria: "Almazov National Medical Research Center[Affiliation]"

Preventive vaccination is a crucial strategy for controlling and preventing infectious diseases, offering both effectiveness and cost-efficiency. However, despite the widespread success of vaccination programs, there are still certain population groups who struggle to mount adequate responses to immunization. These at-risk groups include but are not restricted to the elderly, overweight individuals, individuals with chronic infections and cancer patients.

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Analysis of variants induced by combined ex vivo irradiation and in vivo tumorigenesis suggests a role for the ZNF831 p.R1393Q mutation in cutaneous melanoma development.

J Invest Dermatol

December 2024

Broad Institute, Cambridge, USA., 02140; Wellman Center for Photomedicine, Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA 02114; Department of Dermatology, Massachusetts General Hospital, Boston, MA, USA 02114. Electronic address:

Ultraviolet (UV) radiation is known to be the most important environmental carcinogen for cutaneous melanoma. While genomic analyses of melanoma tumors implicate a high rate of UV damage, the experimental induction and recovery of bona fide UV-signature changes have not been directly observed. To replicate recurrent UV mutations from TCGA_SKCM specimens, we UV-irradiated cultured immortalized human melanocytes and subjected them to in vivo tumorigenesis assays.

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Aim    To evaluate the cumulative incidence and prognostic value of rehospitalizations in patients with heart failure (HF) within one year after discharge.Material and methods    The data of patients with HF hospitalized for the first time (code I50.x in the diagnosis) for the period from January 01, 2022 through February 13, 2024 were selected from the St.

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  • The study focuses on comparing two surgical techniques—sternotomy and thoracotomy—for treating aortic coarctation, aiming to find an effective approach that minimizes complications and avoids recoarctation.
  • 103 procedures were divided between the two techniques, with a matching analysis of 25 patients from each group to ensure fair comparison.
  • Results showed similar mortality rates and early complications for both methods, but the sternotomy approach indicated a lower rate of recoarctation, suggesting it might be the preferred option for surgical repair.
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  • * In some cases, doctors may find that melanoma has spread before identifying the original tumor, which can make diagnosis challenging.
  • * The report highlights a specific patient case involving metastasis of melanoma to the left median nerve and brachial plexus, leading to surgical intervention for treating the metastasis and addressing median neuropathy.
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Introduction Given treatment advancements and the long life expectancy of mostly young patients with cervical cancer, their post-treatment quality of life (QoL) is essential to consider. This study aimed to evaluate the long-term QoL in cervical cancer survivors treated with various approaches. Methods We conducted a cross-sectional survey-based study using the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire Core 30 (EORTC-QLQ-C30) and the European Organization for Research and Treatment of Cancer Quality of Life Questionnaire Cervical Cancer Module 24 (EORTC-QLQ-CX24) questionnaires and involved members of the online cervical cancer patient support group (01/2024-02/2024).

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  • Wrist inflammation in juvenile idiopathic arthritis (JIA) is linked to a more severe disease progression and increased treatment challenges, particularly in patients requiring biologic therapies.
  • The study analyzed data from 753 JIA patients, revealing that wrist involvement is common in various JIA types and is associated with more systemic inflammation markers and complications, especially in females.
  • Patients with wrist arthritis had a lower likelihood of achieving remission and a higher chance of needing biologics, highlighting the importance of early and intensive treatment strategies.
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The burden of heart failure (HF) has been increasing worldwide in recent decades. Early diagnosis of HF based on the outpatient measurement of natriuretic peptide (NP) concentration will allow timely initiation of the treatment and reducing the incidence of adverse outcomes in HF. Unfortunately, the frequency of NP testing remains low worldwide.

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We present a case of successful implantation of a cardioverter-defibrillator (ICD) using combined technique in a child with Timothy's syndrome. Due to high risk of sudden cardiac death (SCD) such patients often need ICD for primary or secondary prevention but implantation technique in young children remains controversial. The subcutaneous cardioverter-defibrillators could be an option in some cases, however, reliable cardiac pacing should be implemented for patients with bradyarrhythmias.

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Minocycline reduces neurobehavioral deficits evoked by chronic unpredictable stress in adult zebrafish.

Brain Res

December 2024

Institute of Translational Biomedicine, St. Petersburg State University, St. Petersburg, Russia; Institute of Experimental Medicine, Almazov National Medical Research Center, St. Petersburg, Russia; Suzhou Municipal Key Laboratory of Neurobiology and Cell Signaling, School of Science, Xi'an Jiaotong-Liverpool University (XJTLU), Suzhou, China; Department of Biological Sciences, School of Science, Xi'an Jiaotong-Liverpool University (XJTLU), Suzhou, China; Moscow Institute of Physics and Technology, Dolgoprudny, Russia. Electronic address:

Chronic stress-related brain disorders are widespread and debilitating, and often cause lasting neurobehavioral deficits. Minocycline, a common antibiotic and an established inhibitor of microglia, emerges as potential treatment of these disorders. The zebrafish (Danio rerio) is an important emerging model organism in translational neuroscience and stress research.

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  • Crouzon syndrome, which affects 1 in 25,000-31,000 newborns, is rarely linked with optic canal stenosis, a condition that can affect vision.
  • A 6-year-old boy with Crouzon syndrome underwent multiple surgeries but experienced worsening vision, leading to the discovery of optic canal stenosis via MRI and confirmed by 3D CT.
  • After surgical decompression of the optic canals, the patient's vision improved, suggesting that addressing optic canal stenosis can be beneficial even after prolonged symptoms.
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Assessing the functional capacity and exercise tolerance is an important and widely used research tool in patients with heart failure. It is used not only in cardiac rehabilitation and physical therapy, but also for inclusion criteria and outcome measures in studies of drug interventions. This document outlines the scope, guidelines for the implementation and interpretation, and limitations of the methods for assessing the functional capacity and exercise tolerance in clinical trials in patients with heart failure.

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Advances in the treatment of chronic thromboembolic pulmonary hypertension (CTEPH) over the past decade changed the disease landscape, yet global insight on clinical practices remains limited. The CTEPH global cross-sectional scientific survey (CLARITY) aimed to gather information on the current diagnosis, treatment, and management of CTEPH and to identify unmet medical needs. This paper focuses on the treatment and management of CTEPH patients.

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The bispecific T cell-binding antibody blinatumomab (CD19/CD3) is widely and successfully used for the treatment of children with relapsed or refractory B-cell precursor acute lymphoblastic leukemia (BCP-ALL). Here, we report the efficacy of a single course of blinatumomab instead of consolidation chemotherapy to eliminate minimal residual disease (MRD) and maintain stable MRD-negativity in children with primary BCP-ALL.Between February 2020 and November 2022, 177 children with non-high-risk BCP-ALL were enrolled in the ALL-MB 2019 pilot study (NCT04723342).

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Comparison of passive targeted delivery of inorganic and organic nanocarriers among different types of tumors.

Nanomedicine

July 2024

Laboratory of Nano- and Microencapsulation of Biologically Active Substances, Peter The Great St. Petersburg Polytechnic University, Polytechnicheskaya 29, St. Petersburg 195251, Russia. Electronic address:

In this study, we have considered four types of nanoparticles (NPs): polylactic acid (PLA), gold (Au), calcium carbonate (CaCO), and silica (SiO) with similar sizes (TEM: 50-110 nm and DLS: 110-140 nm) to examine their passive accumulation in three different tumors: colon (CT26), melanoma (B16-F10), and breast (4T1) cancers. Our results demonstrate that each tumor model showed a different accumulation of NPs, in the following order: CT26 > B16-F10 > 4T1. The Au and PLA NPs were evidently characterized by a higher delivery efficiency in case of CT26 tumors compared to CaCO and SiO NPs.

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Hemodynamic Parameters in Spontaneously Hypertensive Rats with Obesity and Chemically Induced Colitis during Probiotic Therapy.

Bull Exp Biol Med

March 2024

Institute of Experimental Medicine, V. A. Almazov National Medical Research Center, Ministry of Health of the Russian Federation, St. Petersburg, Russia.

We studied the dynamics of the main hemodynamic parameters in spontaneously hypertensive rats (SHR) and Wistar-Kyoto (WKY) rats with visceral obesity and chemically induced colitis (CIC) against the background of probiotic therapy. Systolic BP, HR, and body temperature were recorded over 36 days using a wireless telemetry system. During 8 days (3 days before CIC induction and until the end of the experiment) the animals were intragastrically administered a probiotic based on Lactobacillus delbrueckii D5 strain.

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  • The study analyzed homocysteine (HCy) and vitamin levels, as well as genotypes of key gene polymorphisms related to folate metabolism in children with early-stage multiple sclerosis (MS) and compared them with healthy controls and patients with long-term MS.
  • Results showed elevated HCy levels in children at MS onset without any vitamin B6, B9, or B12 deficiencies, suggesting a unique metabolic issue rather than a general vitamin deficiency.
  • The findings indicate that high HCy levels can serve as a marker for functional disorders in folate metabolism associated with pediatric MS, potentially guiding new prevention and treatment strategies.
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Introduction: Experimental studies on animals have demonstrated a higher neuroprotective efficacy of hypercapnic hypoxia compared to normocapnic hypoxia. Respiratory training with hypercapnic hypoxia has shown a positive impact on the functional state of the nervous system in children with cerebral palsy (CP). It can be presumed that the combined effect of moderate hypercapnia and hypoxia will be promising for clinical application within the context of early rehabilitation after ischemic stroke.

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Objective: To establish the criteria for reversibility of myocardial contractility in patients with coronary artery disease (CAD) after coronary artery bypass grafting considering data of cardiac magnetic resonance imaging (MRI) and echocardiography.

Material And Methods: We studied the results of coronary artery bypass grafting in 186 patients with CAD complicated by reduced left ventricular ejection fraction (<30%). All patients underwent cardiac MRI and echocardiography before surgery.

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Until now, there has not been organized consensus for standardization in bariatric surgery In Russia. We present the results of the first Bariatric Surgery Consensus Conference conducted in Barnaul (March, 2023). A list of questions was proposed within 6 blocks: 1) general issues of bariatric surgery, 2) sleeve gastrectomy, 3) one-anastomosis gastric bypass («mini-gastric bypass»), 4) Roux-en-Y Gastric Bypass, 5) Single Anastomosis Duodenal Switch and other options for biliopancreatic bypass, 6) rare procedures.

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Aim: To determine the correlation between the results of the 6-minute walk test (6MWT) and peak oxygen consumption (VO2peak) for populations of patients with chronic heart failure with pronounced clinical and demographic differences; to study a possibility of indirect measurement of VO2peak based on the results of 6MWT using the formulas available from the literature.

Material And Methods: Two databases were analyzed: 50 patients included in the AEROFIT study (group A), and 31 patients from the Almazov National Medical Research Center (group B). The inclusion criteria were the availability of data from the cardiopulmonary stress test and the 6MWT.

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Objective: To evaluate the outcomes of children with vesicoureteral reflux (VUR) and obstructive megaureter (OM) utilizing various laparoscopic and robot-assisted approaches.

Materials And Methods: Retrospective review of all pediatric laparoscopic and robot-assisted cases for lower ureter pathology was performed between 2016-2022 in 13 academic centers worldwide. Five surgical approaches were assessed: LEUR, LVCUR, LDECUR, RALUR, and RADECUR.

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Early recognition and diagnosis of chronic thromboembolic pulmonary hypertension (CTEPH) is crucial for improving prognosis and reducing the disease burden. Established clinical practice guidelines describe interventions for the diagnosis and evaluation of CTEPH, yet limited insight remains into clinical practice variation and barriers to care. The CTEPH global cross-sectional scientific survey (CLARITY) was developed to gather insights into the current diagnosis, treatment, and management of CTEPH and to identify unmet medical needs.

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Background: Patients with chronic thromboembolic pulmonary hypertension (CTEPH) in countries with limited resources have, to date, been poorly represented in registries.

Objective: This work assesses the epidemiology, diagnosis, hemodynamic and functional parameters, and treatment of CTEPH in Russia, Kazakhstan, Turkey, Lebanon, and Saudi Arabia.

Methods: A prospective, cohort, phase IV, observational registry with 3-year follow-up (n = 212) in patients aged ≥ 18 years diagnosed with CTEPH was created.

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Objective: To justify the optimal method for determining indocyanine green plasma disappearance rate (PDR).

Material And Methods: We analyzed PDR in intensive care units. Indocyanine green was administered intravenously at a dose of 0.

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