218 results match your criteria: "Pavlov First St.-Petersburg State Medical University[Affiliation]"

Background: Prolgolimab is an IgG1 anti-PD-1 monoclonal antibody with the Fc-silencing 'LALA' mutation. The phase III DOMAJOR study assessed efficacy and safety of prolgolimab in combination with pemetrexed and platinum-based chemotherapy vs placebo in combination with pemetrexed and platinum-based chemotherapy as first-line treatment for advanced non-small cell lung cancer (NSCLC).

Methods: 292 patients with advanced non-squamous NSCLC were randomized 1:1 to receive 4 cycles of pemetrexed, platinum-based drug and either prolgolimab (3 mg/kg Q3W) or placebo followed by prolgolimab/placebo with pemetrexed until disease progression or toxicity (≤36 months).

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Human carbonic anhydrase IX (CAIX) plays a key role in maintaining pH homeostasis of malignant neoplasms, thus creating a favorable microenvironment for the growth, invasion, and metastasis of tumor cells. Recent studies have established that inhibition of CAIX expressed on the surface of tumor cells significantly increases the efficacy of classical chemotherapeutic agents and makes it possible to suppress the resistance of tumor cells to chemotherapy, as well as to increase their sensitivity to drugs (in particular, to reduce the required dose of cytostatic agents). In this work, we studied the ability of new CAIX inhibitors based on substituted 1,2,4-oxadiazole-containing primary aromatic sulfonamides, to potentiate the cytostatic effect of gefitinib (selective inhibitor of epidermal growth factor receptor tyrosine kinase domain) under hypoxic conditions.

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An association between the () intron variant rs521851 and depression symptoms, as measured by the depression subscale of the Hospital Anxiety and Depression Scale (HADS-D), has been recently reported. The role of in depression has been linked to disruptions in the gut-brain axis. In this study, we investigated the association between rs521851 and HADS-D scores in an independent cohort of 380 individuals, consisting of 238 patients with an ICD-10 diagnosis of depression and 142 healthy controls.

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Microscopic changes in the lung biopsies of 16 adult patients of both sexes without clear clinical symptoms are described. According to X-ray examination data, disseminated process in the lungs was diagnosed in 4 patients, interstitial pneumonia in 4, osteoplastic pneumopathy in 3, as well as tuberculosis, bronchiolitis and a number of others. Microscopic examination showed that the patients had various forms of petrification and ossification of the lungs, diagnosed clinically and radiologically in only 3 cases.

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This article reviews the contemporary understanding of the functional role of connexins in intercellular communications, their involvement in maintaining cellular and tissue homeostasis, and in aging-associated respiratory disease pathogenesis. Connexins are discussed as potential therapeutic targets. The review particularly focuses on the involvement of gap junction connexins and hemichannels in the transfer of calcium ions, metabolite molecules, ATP, and mitochondria through the cell membrane.

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Predictors of Satisfactory Surgical Outcome in Idiopathic Normal Pressure Hydrocephalus (Review).

Sovrem Tekhnologii Med

November 2024

MD, PhD, Associate Professor, Head of the Department of Neurosurgery; Military Medical Academy named after S.M. Kirov, 6 Academician Lebedev St., Saint Petersburg, 194044, Russia.

Idiopathic normal pressure hydrocephalus is a widespread neurodegenerative disease of the elderly. If not treated surgically early, it results in a severe decrease in quality of life and disability. According to current clinical Russian and foreign guidelines the candidates for CSF shunting procedures are selected based on the results of invasive tests, though treatment outcomes are not always optimal.

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Stereotactic Photodynamic Therapy of Recurrent Malignant Gliomas.

Sovrem Tekhnologii Med

November 2024

MD, PhD, Associate Professor, Head of the Department of Neurosurgery; Military Medical Academy named after S.M. Kirov, 6 Academician Lebedev St., Saint Petersburg, 194044, Russia.

Unlabelled: is to assess the effectiveness and safety of stereotactic photodynamic therapy (sPDT) with 5-aminolevulinic acid (5-ALA) in patients with recurrent malignant supratentorial gliomas in functionally relevant brain areas.

Materials And Methods: In a retrospective single-center study the results of sPDT with 5-ALA in 10 patients (6 of 10 were male), aged 30 to 62 years (median: 51.5 years; 95% CI: 38-59 years) with recurrent malignant brain gliomas after standard therapy who underwent surgery during the period of 2020-2023 were analyzed.

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Article Synopsis
  • - The study analyzed changes in the molecular characteristics of podocytes in two kidney conditions: primary focal segmental glomerulosclerosis (pFSGS) and IgA nephropathy (IgAN), using kidney samples from patients and negative controls.
  • - Results showed that pFSGS patients had significantly higher protein levels in their urine and distinct alterations in podocytes compared to IgAN and negative controls, including decreased WT1 expression and increased desmin expression.
  • - The findings suggest that these alterations may indicate a genomic reprogramming in podocytes and their surrounding cells, which could contribute to the pathogenesis of these kidney diseases.
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Objectives: This study aimed to determine and explain changes in the reflectance spectrum of human blood in vitro when exposed to laser radiation at wavelengths of 450 or 980 nm.

Methods: Reflectance spectra of venous blood samples were measured before and after exposure to a single pulse of 450 or 980 nm laser radiation. A numerical optical model based on the Monte Carlo method was applied.

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Article Synopsis
  • * Researchers conducted a retrospective analysis of MRI data from 34 patients who underwent the procedure, identifying key neuroimaging features that correlate with positive surgical outcomes.
  • * Significant predictors for favorable results were found, including the Evans index and DESH score, leading to the creation of a model that helps predict surgery outcomes, enhancing patient selection.
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Melatonin Receptors and Serotonin: Age-Related Changes in the Ovaries.

J Pers Med

September 2024

Department of Urology, Medical Institute, St. Petersburg University, Mendeleevskaya Line 2, 197036 St. Petersburg, Russia.

Introduction: Melatonin and serotonin can influence certain aging processes in the ovaries. The main melatonin receptors are represented by types MT1 and MT2. The goal of investigation.

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Huntington's disease (HD) is an incurable hereditary disease caused by expansion of the CAG repeats in the gene encoding the mutant huntingtin protein (mHTT). Despite numerous studies in cellular and animal models, the mechanisms underlying the biological role of mHTT and its toxicity to striatal neurons have not yet been established and no effective therapy for HD patients has been developed so far. We produced and characterized a new line of dermal fibroblasts (HDDF, Huntington's disease dermal fibroblasts) from a patient with a confirmed HD diagnosis.

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  • - This article introduces a new hypnotherapeutic method for treating obsessive-compulsive disorder (OCD) that combines hypnosis with various psychological therapies like exposure and response prevention and acceptance and commitment therapy.
  • - A case study highlighted the treatment of a patient who saw a 51.5% reduction in OCD symptoms after four months, with a significant improvement following hypnotherapy sessions.
  • - The article contrasts this new approach with existing hypnotherapeutic methods and suggests potential applications for other compulsive behavior disorders, while calling for more research to validate these findings.
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In oral implantology, surgeons often confront the need to improve alveolar bone quality and volume before implantation in patients with bone defects. Whereas guided bone regeneration with titanium meshes is a clinical gold standard for bone augmentation, mesh removal pre-implantation presents a drawback. This study explores biodegradable scaffolds as an alternative.

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Background: Acute and chronic brain damage in type 2 diabetes mellitus (DM) determines the need to investigate the neuroprotective potential of glucose-lowering drugs. The purpose was to directly compare the neuroprotective effects of glucagon-like peptide-1 receptor agonists (GLP-1RAs) with different duration of action and sodium-glucose cotransporter-2 inhibitors (SGLT-2i) in type 2 diabetic rats with and without stroke.

Methods: DM was modelled using high-fat diet and nicotinamide+streptozotocin protocol.

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Article Synopsis
  • The literature review discusses how COVID-19 can lead to pulmonary fibrosis by exploring the underlying mechanisms associated with the SARS-COV2 virus infection.
  • Key factors contributing to lung remodeling after COVID-19 include direct damage from the virus, inflammatory responses due to cytokine imbalance, and issues with blood vessel function.
  • The review highlights that the abnormal activation of the renin-angiotensin-aldosterone system, combined with other contributing factors, creates an imbalance that promotes fibrosis in the lungs.
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Enhancement of the health care system in Russia continues to be one of key directions of National development. In conditions of deficiency of personnel, systemic changes are needed to transit to qualitatively new level. The application of digital platforms permits to resolve a number of issues related to accessibility and quality of medical services.

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Ligands of the trace amine-associated receptors (TAARs): A new class of anxiolytics.

Pharmacol Biochem Behav

September 2024

Institute of Translational Biomedicine, St. Petersburg State University, 199034 St. Petersburg, Russia; St. Petersburg University Hospital, St. Petersburg State University, 199034 St. Petersburg, Russia. Electronic address:

Most cases of anxiety are currently treated with either benzodiazepines or serotonin reuptake inhibitors. These drugs carry with them risks for a multitude of side effects, and patient compliance suffers for this reason. There is thus a need for novel anxiolytics, and among the most compelling prospects in this vein is the study of the TAARs.

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Purpose: This study aimed to identify the correlation between age-related fluctuations in the average values of rigidity of the fibrous tunic of the eye (FTE) and corresponding ranges of true intraocular pressure (IOP) in healthy eyes and eyes with open-angle glaucoma (OAG); using the identified ranges of FTE rigidity, to establish the appropriate IOP zones for healthy and glaucomatous eyes, taking into account the aging periods as classified by the World Health Organization (WHO).

Material And Methods: Ocular-Response Analyzer tonometry was used according to the Koshits-Svetlova dynamic diagnostic method to examine 674 patients with healthy eyes and 518 patients with glaucomatous eyes, aged 18 to 90 years, classified according to the WHO aging periods, and a theoretical analysis was conducted to estimate clinical values of FTE rigidity, the current level of true IOP, and the calculated individual IOP level in a patient's eye during youth.

Results: The following IOP level zones were identified for patients with healthy and glaucomatous eyes: low IOP zone (≤13 mm Hg); medium IOP zone (14-20 mm Hg); elevated IOP zone (21-26 mm Hg); high IOP zone (27-32 mm Hg); subcompensated IOP zone (33-39 mm Hg); and decompensated IOP zone (≥40 mm Hg).

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Playing a key role in the organization of striatal motor output, the dopamine (DA)-ergic system regulates both innate and complex learned behaviors. Growing evidence clearly indicates the involvement of the DA-ergic system in different forms of repetitive (perseverative) behavior. Some of these behaviors accompany such disorders as obsessive-compulsive disorder (OCD), Tourette's syndrome, schizophrenia, and addiction.

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This article discusses a rare clinical case of differential diagnosis between salivary stone disease and calcinosis, which developed against the background of autoimmune pathology. Diagnosis of these pathologies causes difficulties for practitioners, and treatment methods have fundamental differences. In this regard, the description of this case is relevant and significant.

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Autoprobiotics in the Treatment of Patients with Colorectal Cancer in the Early Postoperative Period.

Microorganisms

May 2024

Scientific and Educational Center "Molecular Bases of Interaction of Microorganisms and Human", World-Class Research Center "Center for Personalized Medicine", Institute of Experimental Medicine, 197376 St-Petersburg, Russia.

Despite great advances in the treatment of oncological diseases, the development of medical technologies to prevent or reduce complications of therapy, in particular, those associated with surgery and the introduction of antibiotics, remains relevant. The aim of this study is to evaluate the effectiveness of the use of autoprobiotics based on indigenous non-pathogenic strains of and as a personalized functional food product (PFFP) in the complex therapy of colorectal cancer (CRC) in the early postoperative period. A total of 36 patients diagnosed with CRC were enrolled in the study.

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The safety of the use of psychotropic drugs, widely used in neurological and psychiatric practice, is an urgent problem in personalized medicine. This narrative review demonstrated the variability in allelic frequencies of low-functioning and non-functional single nucleotide variants in genes encoding key isoenzymes of valproic acid P-oxidation in the liver across different ethnic/racial groups. The sensitivity and specificity of pharmacogenetic testing panels for predicting the rate of metabolism of valproic acid by P-oxidation can be increased by prioritizing the inclusion of the most common risk allele characteristic of a particular population (country).

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