460 results match your criteria: "the Ministry of Health of the Russian Federation Sechenov University[Affiliation]"

Emotional burnout among physicians is a serious problem that can affect their health and the quality of medical care. This condition occurs when physicians experience excessive stress and pressure at work, often due to high demands and expectations imposed on them by patients. This study aims to assess the experience and factors associated with emotional burnout among health workers who deal with COVID-19-positive patients.

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Monosome Stalls the Translation Process Mediated by IGF2BP in Arcuate Nucleus for Puberty Onset Delay.

Mol Neurobiol

September 2024

Central Laboratory, Suzhou Bay Clinical College, Xuzhou Medical University, Suzhou Ninth People's Hospital, Soochow University, Suzhou, 215200, Jiangsu, China.

Puberty onset through hypothalamic-pituitary-gonad (HPG) axis as an important reproductive event in postnatal development is initiated from hypothalamic arcuate nucleus (ARC). The growing evidence indicates that translational control also plays an essential role in the final expression of gonadotropin genes. To investigate the role of protein translation and behavior of ribosomes in pubertal onset, the global profiles of transcriptome, single ribosome (monosome), polysome, and tandem mass tag proteome were comprehensively investigated in rat hypothalamic ARCs of different pubertal stages using RNA sequencing, polyribo sequencing, and mass spectrum.

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Article Synopsis
  • The study investigates how one or two doses of inactivated adjuvanted influenza vaccines affect immune responses, specifically focusing on the expression of endosomal Toll-like receptors (TLRs) in patients with common variable immunodeficiency (CVID).
  • Six CVID patients received one vaccine dose followed by nine patients who received two doses; flow cytometry was used to analyze immune cell populations and TLR expression.
  • Findings show that while key lymphocyte populations remained stable post-vaccination, patients receiving two doses exhibited increased TLR3 and TLR9 expression, indicating that two-dose vaccine regimens may enhance immune responses in CVID patients.
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Stroke represents a significant global health burden, with a substantial impact on mortality, morbidity, and long-term disability. The examination of stroke biomarkers, particularly the oral microbiome, offers a promising avenue for advancing our understanding of the factors that contribute to stroke risk and for developing strategies to mitigate that risk. This review highlights the significant correlations between oral diseases, such as periodontitis and caries, and the onset of stroke.

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Hereditary neurodegenerative diseases (hNDDs) such as Alzheimer's, Parkinson's, Huntington's disease, and others are primarily characterized by their progressive nature, severely compromising both the cognitive and motor abilities of patients. The underlying genetic component in hNDDs contributes to disease risk, creating a complex genetic landscape. Considering the fact that growth factors play crucial roles in regulating cellular processes, such as proliferation, differentiation, and survival, they could have therapeutic potential for hNDDs, provided appropriate dosing and safe delivery approaches are ensured.

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Occupational pulmonary diseases (OPDs) pose a significant global health challenge, contributing to high mortality rates. This review delves into the pathophysiology of hypoxia and the safety of intermittent hypoxic conditioning (IHC) in OPD patients. By examining sources such as PubMed, Relemed, NLM, Scopus, and Google Scholar, the review evaluates the efficacy of IHC in clinical outcomes for OPD patients.

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The transcription of organellar genes is performed by three nuclear-encoded RNA polymerases: RPOTm, RPOTmp, and RPOTp. The RPOTmp protein possesses ambiguous transit peptides, allowing participation in gene expression control in both mitochondria and chloroplasts, although its function in plastids is still under discussion. Here, we show that the overexpression of RPOTmp in , targeted either to mitochondria or chloroplasts, disturbs the dormant seed state, and it causes the following effects: earlier germination, decreased ABA sensitivity, faster seedling growth, and earlier flowering.

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Cell-Based Therapy and Genome Editing as Emerging Therapeutic Approaches to Treat Rheumatoid Arthritis.

Cells

July 2024

Laboratory of Biomedical Technologies, Institute of Fundamental Medicine and Biology, Kazan Federal University, 18 Kremlyovskaya Street, Kazan 420008, Russia.

Rheumatoid arthritis (RA) is an autoimmune disease characterized by chronic inflammation of the joints. Although much remains unknown about the pathogenesis of RA, there is evidence that impaired immune tolerance and the development of RA are related. And it is precisely the restoration of immune tolerance at the site of the inflammation that is the ultimate goal of the treatment of RA.

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Background: Tracheal, Bronchus, and Lung (TBL) cancer continues to represent the majority of cancer-related incidence and mortality in United States (U.S.).

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Article Synopsis
  • A limited number of innovative antibacterial agents are being developed to effectively target critical Gram-negative bacteria resistant to current treatments, with endolysins showing promise due to their unique action against these pathogens.
  • The study uses a multidisciplinary approach including genetic engineering, structural analysis, and various formulations of the engineered endolysin LysECD7-SMAP, which are tested for effectiveness in preclinical models of infections such as sepsis and pneumonia.
  • Results indicate that LysECD7-SMAP is effective against multiple drug-resistant bacteria, and in vivo studies confirm the efficacy of its formulated dosage forms, along with insights into how it interacts with bacterial cell walls.
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Fibromyalgia (FM) is a complex and common syndrome characterized by chronic widespread pain, fatigue, sleep disturbances, and various functional symptoms without clear structural or pathological causes. Affecting approximately 1-5% of the global population, with a higher prevalence in women, FM significantly impacts patients' quality of life, often leading to considerable healthcare costs and loss of productivity. Despite its prevalence, the etiology of FM remains elusive, with genetic, environmental, and psychological factors, including nutrition, being implicated.

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Role of Neurotransmitters in Steady State Hematopoiesis, Aging, and Leukemia.

Stem Cell Rev Rep

July 2024

Department of Pulmonary Medicine, JSS Medical College, JSS Academy of Higher Education & Research (JSS AHER), Mysuru, Karnataka, India.

Haematopoiesis within the bone marrow (BM) represents a complex and dynamic process intricately regulated by neural signaling pathways. This delicate orchestration is susceptible to disruption by factors such as aging, diabetes, and obesity, which can impair the BM niche and consequently affect haematopoiesis. Genetic mutations in Tet2, Dnmt3a, Asxl1, and Jak2 are known to give rise to clonal haematopoiesis of intermediate potential (CHIP), a condition linked to age-related haematological malignancies.

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The objective of the study was to evaluate the profile and diagnostic significance of serum autoantibodies in infertile patients with premature ovarian insufficiency (POI). The pilot study included 26 patients of reproductive age with POI and diminished ovarian reserve who received complex treatment using new surgical technologies (Group 1) and 18 patients without POI (Group 2). The profile of serum autoantibodies, including anti-ovarian antibodies, antibodies against thyroid peroxidase (TPO), steroidogenic enzymes, and steroid and gonadotropic hormones, was studied using modified ELISAs and human recombinant steroidogenic enzymes (CYP11A1, CYP19A1, CYP21A2).

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In clinical practice, an innovative laser technology that provides contactless preparation of soft tissues with a wavelength of 445 nm has been introduced. This study aimed to investigate the morphological changes in the oral mucosa when exposed to laser radiation at a wavelength of 445 nm in the ablation mode.An experimental study was conducted to analyze the dynamics of reparative regeneration in the wound caused by that particular type of radiation, utilizing the procedure of lower lip frenuloplasty as an illustration.

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Reactive oxygen species (ROS) play an important and controversial role in carcinogenesis. Microsomal redox chains containing NADH- and NADPH-dependent oxidoreductases are among the main sites of intracellular ROS synthesis, but their role in the oxidative balance has not been fully studied. Here, we studied the activity of cytochrome b5 reductase (CYB5R) and cytochrome P450 reductase (CYPOR) in ovarian cancer tissues and cells isolated from peritoneal fluid, along with the antioxidant capacity of peritoneal fluid.

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SARS-CoV-2 variants have evolved over time in recent years, demonstrating immune evasion of vaccine-induced neutralizing antibodies directed against the original S protein. Updated S-targeted vaccines provide a high level of protection against circulating variants of SARS-CoV-2, but this protection declines over time due to ongoing virus evolution. To achieve a broader protection, novel vaccine candidates involving additional antigens with low mutation rates are currently needed.

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The Impact of Treadmill Training on Tissue Integrity, Axon Growth, and Astrocyte Modulation.

Int J Mol Sci

March 2024

OpenLab Gene and Cell Technology, Institute of Fundamental Medicine and Biology, Kazan Federal University, 420008 Kazan, Russia.

Spinal cord injury (SCI) presents a complex challenge in neurorehabilitation, demanding innovative therapeutic strategies to facilitate functional recovery. This study investigates the effects of treadmill training on SCI recovery, emphasizing motor function enhancement, neural tissue preservation, and axonal growth. Our research, conducted on a rat model, demonstrates that controlled treadmill exercises significantly improve motor functions post-SCI, as evidenced by improved scores on the Basso, Beattie, and Bresnahan (BBB) locomotor rating scale and enhanced electromyography readings.

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Background: This study aims to explore how Russian society perceives children with cancer and their families to determine its potential as a tool for solving the social struggles of cancer-affected youth.

Methods: The study took place between 2019 and 2020 and involved 237 parents of cancer-affected children enrolled for inpatient treatment in 5 pediatric oncology clinics in the North Caucasus Federal District (Russia). The study exploits a specially designed questionnaire survey as its main research method.

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An elderly person is the subject of changes and development of the basic conditions of his life. Older patients may experience manifestations of social aging, in which some new areas of social reality remain unexplored for them. This article analyzes dispositional optimism and locus of control, as two personal characteristics closely related to the social and psychological aspects.

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Article Synopsis
  • Esophageal squamous cell carcinoma (ESCC) shows increased activation of the methionine cycle, which is linked to poorer patient survival and drives cell proliferation through S-adenosyl-methionine (SAM) production.
  • The study reveals that methionine influences gene expression by enhancing METTL3-mediated RNA methylation, particularly affecting the expression of NR4A2, a gene that promotes ESCC growth and worsens patient outcomes.
  • Celecoxib is identified as a potential new treatment for ESCC by inhibiting NR4A2, suggesting that targeting the methionine cycle could be a more effective approach than restricting methionine intake itself.*
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New conjugates based on N4-hydroxycytidine with more potent antiviral efficacy in vitro than EIDD-2801 against SARS-CoV-2 and other human coronaviruses.

Antiviral Res

May 2024

Department of Epidemiology, Federal State Budget Institution "National Research Centre for Epidemiology and Microbiology Named After Honorary Academician N. F. Gamaleya" of the Ministry of Health of the Russian Federation, 123098, Moscow, Russia; Department of Infectology and Virology, Federal State Autonomous Educational Institution of Higher Education I.M. Sechenov, First Moscow State Medical University of the Ministry of Health of the Russian Federation (Sechenov University), 119435, Moscow, Russia.

The spread of COVID-19 continues due to genetic variation in SARS-CoV-2. Highly mutated variants of SARS-CoV-2 have an increased transmissibility and immune evasion. Due to the emergence of various new variants of the virus, there is an urgent need to develop broadly effective specific drugs for therapeutic strategies for the prevention and treatment of COVID-19.

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Immunotherapy using dendritic cell-based vaccination is a natural approach using the capabilities and functions inherent in the patient's immune system to eliminate tumor cells. The development of dendritic cell-based cell technologies evolved as the disorders of dendritic cell differentiation and function in cancer were studied; some of these functions are antigen presentation, priming of cytotoxic T-lymphocytes and induction of antigen-specific immune responses. At the initial stage of technology development, it was necessary to develop protocols for the in vitro generation of functionally mature dendritic cells that were capable of capturing tumor antigens and processing and presenting them in complex with MHC to T-lymphocytes.

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Locus coeruleus is a small bilateral nucleus in the brainstem. It is the main source of norepinephrine (noradrenaline) throughout the central nervous system (about 70% of all norepinephrine in the central nervous system), and, as shown in numerous studies, it is involved in regulating a significant number of functions. The detailed study of the functions of the Locus Coeruleus (LC) and its significance in human life became possible only after the development of histofluorescence methods for monoamines in the 1960s.

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Alzheimer's disease (AD) is the most common cause of dementia worldwide that has an increasing impact on aging societies. Besides its critical role in the control of various physiological functions and behavior, brain serotonin (5-HT) system is involved in the regulation of migration, proliferation, differentiation, maturation, and programmed death of neurons. At the same time, a growing body of evidence indicates the involvement of 5-HT neurotransmission in the formation of insoluble aggregates of β-amyloid and tau protein, the main histopathological signs of AD.

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