29,135 results match your criteria: "St. Petersburg; Pavlov First St. Petersburg State Medical University[Affiliation]"

Objectives: To explore thresholds for the Psoriatic Arthritis (PsA) Impact of Disease questionnaire (PsAID12) score against disease activity measures in an observational setting, in patients with PsA.

Methods: The baseline data from the ReFlaP observational, prospective, multicentre and international study was used (NCT03119805). Cutoffs for PsAID12 were determined against disease activity scores, defining disease impact states (ie remission, low impact, moderate impact and high impact).

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Major histocompatibility complex class I deficiency results from deleterious biallelic variants in TAP1, TAP2, TAPBP, and B2M genes. Only a few patients with variant-curated TAP1 deficiency (TAP1D) have been reported in the literature and the clinical phenotype has been variable with an emphasis on autoimmune and inflammatory complications. We report TAP1D in a Nepalese girl with a severe clinical phenotype with serious viral infections at a very young age.

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The Replicability Crisis and Human Agency in the Neo-Structured World.

Integr Psychol Behav Sci

January 2025

Department of Psychology, St. Petersburg State University, St. Petersburg, Russian Federation.

The paper analyzes current discussions concerning the so called "replicability crisis" - a notion describing difficulties in attempts to confirm existing research findings by their additional scrutiny or by new empirical studies. We propose interpretation that this "crisis" may be seen as a manifestation of the increasing inconsistency between, on the one hand, the outdated views on a human being and social structures dominating in the academic mainstream across various disciplines, including psychology and sociology, and, on the other hand, the reality of the emerging new stage of societal evolution, neo-structuration, which brings to the forefront individual agency. Our analysis suggests the possibilities for the future inter-disciplinary paradigmatic shift, which implies putting in the center of research not the idea of a constant or predictably developing individual in the context of solid external structures operating in line with a presumably sustainable "progress".

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Introduction: Aggression and self-harm disproportionately occur in youths preoccupied with social status tracking. These pathological conditions are linked to a serotonin (5-HT) deficit in the brain. Ablation of 5-HT biosynthesis by tryptophan hydroxylase 2 knockout (TPH2-KO) increases aggression in rodents.

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Background: Therapeutic plasma exchange (TPE) is the primary intervention for treating symptomatic hyperviscosity from hypergammaglobulinemia, yet its efficacy for treating hyperviscosity related to hyperfibrinogenemia is unclear.

Objective: Define the safety and efficacy of TPE for critically ill COVID-19 patients with elevated blood viscosity from hyperfibrinogenemia.

Method: A prospective, randomized controlled trial in critically ill COVID-19 patients at a single US healthcare system.

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Article Synopsis
  • The study examines the Yuzhniy Oleniy Ostrov burial site, focusing on group dynamics and regional interactions of the Mesolithic population in Northern Europe.
  • Radiogenic strontium isotope analysis revealed that most individuals likely lived semi-permanently near Lake Onega, with only two showing evidence of having spent time outside the area.
  • The findings suggest stable residential patterns for Late Mesolithic foragers while also highlighting connections to broader communication networks, indicating some long-distance interactions.
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Ferritin-based hybrid macromolecules experience unusual shift of stoichiometry distribution.

Int J Biol Macromol

December 2024

Research Center for Molecular Mechanisms of Aging and Age-Related Diseases, Moscow Institute of Physics and Technology, 141700 Dolgoprudny, Russian Federation; Frank Laboratory of Neutron Physics, Joint Institute for Nuclear Research, Dubna, 141980, Russian Federation. Electronic address:

Article Synopsis
  • Ferritin-based hybrids are large macromolecules with potential uses in drug delivery and vaccines, but their design is complicated.
  • Researchers designed hybrids using ferritin from Helicobacter pylori and a Small Ubiquitin-like Modifier, discovering that their assembly was influenced by varying preparation methods.
  • They developed a quantitative model to analyze how different stoichiometries affected the structure of these hybrids, revealing unexpected patterns and establishing a framework for better design of ferritin-based systems.
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Objective: Patients with a history of surgery for single-suture craniosynostosis (SSC) as an infant often wish to participate in sports later in childhood. However, there are no established guidelines from neurosurgeons and craniofacial surgeons to guide parents in which sports their child should or should not participate. Therefore, this study aimed to evaluate the attitudes and practice patterns of experienced neurosurgeons and craniofacial surgeons regarding the counseling of caregivers of these patients about sports participation.

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Article Synopsis
  • The implementation of laboratory information systems (LIS) in healthcare has improved the ability to collect and analyze large volumes of lab data, as part of Russia's goal to create a unified digital healthcare circuit.
  • The study aimed to assess blood glucose levels and carbohydrate metabolism in various age groups during and after COVID-19, using data from city hospitals and labs.
  • Findings revealed significant increases in blood glucose during the COVID-19 pandemic for all age groups, with older adults showing the most pronounced negative effects, while middle-aged individuals saw a post-COVID decrease in glucose levels.
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The article describes the forms, causes and consequences of insomnia in the elderly. It shows the clinical features of dyssomnic disorders in comorbid depressive and anxiety disorders, as the most common mental pathology of old age. The approaches of Russian and foreign authors to the diagnosis and treatment of insomnia in the elderly are considered.

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The topic of the timing of the manifestation of age-associated diseases (as an indirect indicator of accelerated population aging) after the transfer of COVID-19 remains an urgent area in scientific research. Early targeted diagnosis can significantly reduce the consequences of pathology, in connection with which the features of the manifestation of various nosologies in the post-COVID period were studied. The materials were the accounting and statistical data of the municipal polyclinics of the Sakhalin Region for the pre-COVID (2017-2019) and post-COVID (2022-2023) periods.

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Article Synopsis
  • The review summarizes long-term research by the Saint-Petersburg Institute of Bioregulation and Gerontology on the biological activity of peptide bioregulators and compares findings from domestic and international studies.
  • Russian scientists have taken the lead in using buccal epithelium as a diagnostic marker for age-related diseases, highlighting their significant contributions in this field.
  • The research reveals that peptides from the epiphysis can enhance melatonin secretion and influence circadian rhythms in the elderly by regulating gene expression and reducing harmful protein synthesis, suggesting their potential as therapeutic agents for age-related issues.
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[Peptide regulation of cellular aging.].

Adv Gerontol

January 2025

Saint-Petersburg Institute of Bioregulation and Gerontology, 3 Dinamo av., St. Petersburg 197110, Russian Federation, e-mail:

Cellular aging is the inability of structures to proliferate (further division) and repair damage while maintaining metabolic activity. The key well-known factors of cellular aging are the processes of DNA damage, telomere shortening, the development of oxidative stress and epigenetic changes. The above factors provoke the development of a pro-inflammatory environment, leading to errors in gene expression and metabolic dysregulation, thereby affecting the development of age-related diseases that contribute to pathological changes in the functions of tissues and organs.

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The Rey Auditory Verbal Learning Test (RAVLT) is a classic test used to assess episodic verbal memory in research and clinical practice. We aimed to adapt the RAVLT materials into Russian, provide performance norms across the adult lifespan for the Russian adaptation, and develop a mobile application for automated RAVLT administration across languages. We created three psycholinguistically matched alternative versions of the RAVLT materials in Russian and incorporated them into a new tablet application.

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Ultrastructural Remodeling of Cardiomyocytes in Postinfarction Myocardium of Rats in the Late Stages of the Disease.

Cytometry A

December 2024

Laboratory of Hyperspectral Imaging of Surgical Targets, Center of Excellence, L.A. Orbeli Institute of Physiology, National Academy of Sciences, Yerevan, Armenia.

Identifying factors that contribute to the transition to the dilated phase in cardiac ischemia is a critical challenge in heart failure treatment. Currently, no effective therapies exist for this ischemic complication, and the mechanisms driving left ventricular dilatation during chronic post-infarction remodeling remain poorly understood. One potential pathological process leading to ventricular dilatation involves specific compensatory rearrangements in the border zone adjacent to the infarct, which isolates the intact myocardium from inflammation at the scar edge.

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The Northern Antarctic Peninsula (NAP) and the West Antarctic Ice Sheet (WAIS) are likely to respond rapidly to climate changes by increasing the collapse of peripheral ice shelves and the number of days above 0 °C. These facts make this region a representative hotspot of the global sea level rise and the location of one of the global climate tipping points (thresholds in the Earth system whose changes may become irreversible, if exceeded). Understanding the climate evolution of the NAP, based on past evidences, may help infer its future scenario.

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Eusociality, characterized by reproductive division of labor, cooperative brood care, and multi-generational cohabitation, represents a pinnacle of complex social evolution, most notably manifested within the Hymenoptera order including bees, ants, and wasps. The molecular underpinnings underlying these sophisticated social structures remain an enigma, with noncoding RNAs (ncRNAs) emerging as crucial regulatory players. This article delves into the roles of ncRNAs in exerting epigenetic control during the development and maintenance of Hymenopteran eusociality.

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Background: Real-time reverse transcription quantitative polymerase chain reaction (RT-qPCR) is a powerful tool for analysing target gene expression in biological samples. To achieve reliable results by RT-qPCR, the most stable reference genes must be selected for proper data normalisation, particularly when comparing cells of different types. We aimed to choose the least variable candidate reference genes among eight housekeeping genes tested within a set of human cancer cell lines (HeLa, MCF-7, SK-UT-1B, A549, A431, SK-BR-3), as well as four lines of normal, non-malignant mesenchymal stromal cells (MSCs) of different origins.

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This review explores the intricate relationship between glaucoma and circadian rhythm disturbances. As a principal organ for photic signal reception and transduction, the eye plays a pivotal role in coordinating the body's circadian rhythms through specialized retinal ganglion cells (RGCs), particularly intrinsically photosensitive RGCs (ipRGCs). These cells are critical in transmitting light signals to the suprachiasmatic nucleus (SCN), the central circadian clock that synchronizes physiological processes to the 24-hour light-dark cycle.

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Cortical spreading depolarization (CSD), a slowly propagating wave of transient cellular depolarization, is a reliable cortical response to various brain insults (stroke, trauma, seizures) and underlying mechanism of migraine aura. Little is known about CSD effects on brain network activity. Using undirected (mutual information, MI) and directed (transfer entropy, TE) measures, we studied the dynamics of cross-hemispheric connectivity associated with the development of unilateral CSD in freely behaving rats and the involvement of inhibitory transmission in mechanisms of the coupling changes.

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Background: The 313-variant polygenic risk score (PRS) provides a promising tool for clinical breast cancer risk prediction. However, evaluation of the PRS across different European populations which could influence risk estimation has not been performed.

Methods: We explored the distribution of PRS across European populations using genotype data from 94,072 females without breast cancer diagnosis, of European-ancestry from 21 countries participating in the Breast Cancer Association Consortium (BCAC) and 223,316 females without breast cancer diagnosis from the UK Biobank.

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The expansion of glutamine residue track (polyQ) within soluble proteins (Q proteins) is responsible for nine autosomal-dominant genetic neurodegenerative disorders. These disorders develop when polyQ expansion exceeds a specific pathogenic threshold (Q) which is unique for each disease. However, the pathogenic mechanisms associated with the variability of Q within the family of Q proteins are poorly understood.

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An important area of V.M. Bekhterev's scientific research, which to this day does not have a productive resolution and remains controversial, was an attempt to combine the science of the human psyche with a speculative philosophy close to pantheistic views about the «universal soul».

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The article presents theses of the resolution of the Interdisciplinary Council of Experts in Psychiatry and Neurology (Moscow, 2024) on the issue of comorbid anxiety disorders (AD) in patients with neurological pathologies. The authors highlight the high prevalence of comorbid ADs and their significant negative impact on the course of underlying diseases, such as epilepsy, pain syndromes and post-stroke conditions. Modern approaches to the diagnosis and treatment of ADs in this group of patients are discussed.

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Objective: To analyze the efficacy and tolerability of aceclofenac in the treatment of patients with acute non-specific musculoskeletal pain in the lower back (ANBP) compared with other NSAIDs (dexketoprofen, nimesulide and lornoxicam), as well as to assess the impact of NSAIDs therapy on the relative risk of recurrence and chronicity of this pathology.

Material And Methods: The study involved 80 patients (47 women and 33 men), average age 52.6 [47.

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