1,612 results match your criteria: "I.M.Sechenov First Moscow State Medical University Sechenov University[Affiliation]"

Background: Thoracic aortic aneurysm is a latent disease with a high risk of death. Today, as data are accumulating, an estimation of the differences in thoracic aneurysm in men and women of different age groups is required. The present study evaluated the type of atherosclerotic aortic lesions in males and females at different ages regarding the presence or absence of aortic dissection.

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  • There is increasing interest in periodic limb movements in sleep (PLMS) both clinically and scientifically, highlighting its significance as a movement disorder.
  • The study evaluates the effectiveness of the SOMNOwatch™ actigraph in detecting PLMS by comparing its results with traditional nocturnal polysomnography (PSG) in 28 patients.
  • Findings show a high correlation between the PLMI from both methods (r = 0.98), with the SOMNOwatch™ displaying strong sensitivity (86.7%) and specificity (92.3%) for detecting PLMS.
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  • The study aimed to investigate lung tissue changes in rats after administering baclofen, focusing on the expression of genes related to apoptosis (Bax and Bcl-2) in different lung cell types.
  • Twenty Wistar rats were divided into four groups, with varying observation times after receiving baclofen, to assess the corresponding histological and gene expression effects.
  • Results showed significant lung damage, including vascular issues and emphysema, peaking at 24 hours, with varying levels of Bax and Bcl-2 expression that indicated a dynamic response to baclofen administration.
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  • The infant gut microbiota changes significantly during early life, which is crucial for developing the immune system, absorbing nutrients, and metabolic functions.
  • Short-chain fatty acids (SCFAs) like acetate, propionate, and butyrate, produced by gut bacteria from dietary fibers, play vital roles in energy supply, immune regulation, and gut health.
  • Disruptions in gut microbiota and SCFA production are linked to various pediatric health issues, highlighting the importance of understanding SCFAs for improving child health and developing targeted therapies.
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  • Lung cancer is a major global health issue, influenced by cancer stem cells (CSCs), but the interaction between these CSCs and SARS-CoV2 is not well understood.
  • This study compares lung adenocarcinoma samples from 12 patients who had COVID-19 with 12 who did not, examining tumor characteristics and CSC markers.
  • Results indicated that patients who had COVID-19 had significantly more CSCs (marked by ALDH1, CD133, and CD34) in their tumors, suggesting that COVID-19 may enhance the metastatic potential of lung adenocarcinoma and the presence of viral proteins in the lung tissue.
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  • - The study investigated the effectiveness of fluorescent lymphography for identifying sentinel lymph nodes in breast cancer patients, involving 333 participants over several years at specialized centers.
  • - Results showed a 99.1% detection rate and an overall accuracy of 94%, with metastatic lesions discovered in 16.4% of cases, primarily in 1-2 lymph nodes.
  • - The technique demonstrated safety with no significant adverse events, indicating that fluorescent lymphography can be a reliable method for sentinel lymph node biopsy in breast cancer treatment.
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The antimicrobial resistance crisis along with challenges of antimicrobial discovery revealed the vital necessity to develop new antibiotics. Many of the animal proline-rich antimicrobial peptides (PrAMPs) inhibit the process of bacterial translation. Genome projects allowed to identify immune-related genes encoding animal host defense peptides.

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An aortic aneurysm is a localized enlargement that exceeds the normal diameter of the vessel by 50 %, posing a risk due to the likelihood of rupture. The cause of aortic aneurysm, especially in young people, is connective tissue dysplasia, a condition characterized by defects in the assembly of collagen and elastin proteins, leading to changes in elastic properties and disruption of the formation of organs and their systems. The article presents data confirming the relationship between many morphological manifestations of connective tissue dysplasia (e.

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Targeted metabolomic profiling of acute ST-segment elevation myocardial infarction.

Sci Rep

October 2024

Laboratory of Pharmacokinetics and Metabolomic Analysis, Institute of Translational Medicine and Biotechnology, I.M. Sechenov First Moscow State Medical University (Sechenov University), Moscow, 119435, Russia.

Myocardial infarction is a major cause of morbidity and mortality worldwide. Metabolomic investigations may be useful for understanding the pathogenesis of ST-segment elevation myocardial infarction (STEMI). STEMI patients were comprehensively examined via targeted metabolomic profiling, machine learning and weighted correlation network analysis.

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Background: Despite the success of first-generation COVID-19 vaccines targeting the spike (S) protein, emerging SARS-CoV-2 variants have led to immune escape, reducing the efficacy of these vaccines. Additionally, some individuals are unable to mount an effective immune response to S protein-based vaccines. This has created a need for alternative vaccine strategies that are less susceptible to mutations and capable of providing broad and durable protection.

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  • Recent research shows ribavirin can effectively treat glioblastoma using an intranasal delivery method that targets the brain directly.
  • The study focused on improving ribavirin's bioavailability by using gel-forming polymers in the nasal cavity, incorporating thermosensitive, pH-sensitive, and ion-selective materials.
  • The optimal gel composition was determined as 0.5% gellan gum, 2% Poloxamer 124, and a 100 mg/mL concentration of ribavirin, and in vivo tests demonstrated successful drug penetration into the brain via the olfactory pathways in male rats.
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Association of the Serotonin and Kynurenine Pathways as Possible Therapeutic Targets to Modulate Pain in Patients with Fibromyalgia.

Pharmaceuticals (Basel)

September 2024

Division of Basic Neurosciences, Instituto Nacional de Rehabilitación, "Luis Guillermo Ibarra Ibarra", Mexico City 14389, Mexico.

Article Synopsis
  • * Dysregulation of tryptophan (Trp) metabolism plays a role in FM, as Trp is crucial for serotonin production and is involved in immune responses via the kynurenine pathway, affecting mood and pain perception.
  • * The review suggests a new treatment strategy for FM by inhibiting the synthesis of neurotoxic quinolinic acid (QA) and using selective serotonin reuptake inhibitors to elevate protective kynurenic acid (KYNA) levels, aiming to reduce pain and improve mental health outcomes.
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Traditionally, garlic has a valuable role in preventing and reducing the incidence of many diseases and pathophysiological disorders. Consequently, some researchers have focused on the beneficial cardiovascular properties of diallyl trisulfide (DATS), the most potent polysulfide isolated from garlic. Therefore, in this review, we collected the available data on DATS, its biochemical synthesis, metabolism and pharmacokinetics, and gathered the current knowledge and the role of DATS in cardiovascular diseases.

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Cystic fibrosis (CF) is a hereditary disease characterized by the progression of respiratory disorders, especially in adult patients. The purpose of the study was to identify volatile organic compounds (VOCs) as predictors of respiratory dysfunction, chronic respiratory infections of , , , and VOCs associated with severe genotype and highly effective modulator treatment (HEMT). Exhaled breath samples from 102 adults with CF were analyzed using PTR-TOF-MS, obtained during a forced expiratory maneuver and normal quiet breathing.

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Background: Early childhood caries (ECC), also known as dental caries, poses a significant challenge to the oral health and overall well-being of young children. This study aims to investigate the potential relationship between the mode of delivery and the odds of ECC.

Methods: We conducted a meticulous systematic review and meta-analysis, gathering studies from reputable databases, including Web of Science, Scopus, PubMed, Cochrane, Google Scholar, and Embase.

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Ulcerative colitis (UC) is a chronic inflammatory bowel disease (IBD) marked by persistent inflammation of the mucosal lining of the large intestine, leading to debilitating symptoms and reduced quality of life. Emerging evidence suggests that an imbalance of the gut microbiota plays a crucial role in UC pathogenesis, and various signaling pathways are implicated in the dysregulated immune response. Probiotics are live microorganisms that confer health benefits to the host, have attracted significant attention for their potential to restore gut microbial balance and ameliorate inflammation in UC.

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Context: The problem of correcting immune system function and compensating for co-morbidities becomes particularly clinically significant in the post-COVID period. There is evidence that certain trace elements in the human body, particularly zinc ions, play a critical role in restoring the function of the immune system and internal organs.

Objective: To analyze the mechanisms of zinc action maintaining the body homeostasis in order to justify pathogenetically the inclusion of zinc drugs in the therapy of patients in the post-COVID period.

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Resveratrol (RV-3, 5, 4'-trihydroxystilbene) is a natural compound found in plants like red grapes, berries, and peanuts, with promising effects on dental health. It helps strengthen tooth enamel by promoting remineralization, making the teeth more resistant to decay caused by acid-producing bacteria. RV also shields dentin, a vulnerable layer beneath the enamel, from erosion and sensitivity.

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NDSRIs Crisis in Pharmaceuticals; Insights on Formation Pathways, Root Causes, Risk Management, and Novel Analytical Techniques.

Curr Med Chem

September 2024

Department of Pharmaceutical Chemistry, JSS College of Pharmacy, Mysuru, JSS academy of higher education and research (JSSAHER) - 570015, Karnataka, India.

The discovery of a new class of nitrosamine impurities called N-nitroso drug substance related impurities (NDSRIs) in pharmaceuticals has emerged as a significant challenge for the pharmaceutical sector due to their significant genotoxic and mutagenic effects. Regulatory bodies globally in active collaboration with all the concerned stake holders, are taking effective measures to prevent and control NDSRIs. This comprehensive review on NDSRIs discusses formation pathways, root cause analysis, acceptable intake limits, case studies, control strategies and regulatory responses pertaining to recent NDSRI incidents.

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Several chemotherapeutics against breast cancer are constrained by their adverse effects and chemoresistance. The development of novel chemotherapeutics to target metastatic breast cancer can bring effective clinical outcomes. Many breast cancer patients present with tumors that are positive for estrogen receptors (ERs), highlighting the importance of targeting the ER pathway in this particular subtype.

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: Electroencephalography (EEG) is considered a standard but powerful tool for the diagnosis of neurological and psychiatric diseases. With modern imaging techniques such as magnetic resonance imaging (MRI), computed tomography (CT), and magnetoencephalography (MEG), source localization can be improved, especially with low-resolution brain electromagnetic tomography (LORETA). The aim of this review is to explore the variety of modern techniques with emphasis on the efficacy of LORETA in detecting brain activity patterns in schizophrenia.

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We present the findings of assessing the expression levels of extracellular TLR2 and TLR4 and intracellular TLR3 and TLR8 correlating with the severity of clinical manifestations of HPV infection. A total of 199 women took part in a single-center prospective comparative research study on TLR2, TLR3, TLR4 and TLR8 expression in HPV-related cervical lesions. TLRs' mRNA expression was analyzed using real-time reverse transcription polymerase chain reaction (RT-PCR).

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Marfan syndrome (MFS) is a hereditary condition accompanied by disorders in the structural and regulatory properties of connective tissue, including elastic fibers, due to a mutation in the gene encodes for fibrillin-1 protein (FBN1 gene) and the synthesis of abnormal fibrillin-1 glycoprotein. Despite the high potential of mast cells (MCs) to remodel the extracellular matrix (ECM), their pathogenetic significance in MFS has not been considered yet. The group of patients with Marfan syndrome included two mothers and five children (three girls aged 4, 11, and 11 and two boys aged 12 and 13).

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In recent years, various technologies have emerged for the imaging of chromatin loci in living cells via catalytically inactive Cas9 (dCas9). These technologies facilitate a deeper understanding of the mechanisms behind the chromatin dynamics and provide valuable kinetic data that could not have previously been obtained via FISH applied to fixed cells. However, such technologies are relatively complicated, as they involve the expression of several chimeric proteins as well as sgRNAs targeting the visualized loci, a process that entails many technical subtleties.

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Given the high growth rates of cognitive decline among the elderly population and the lack of effective etiological treatments, early diagnosis of cognitive impairment progression is an imperative task for modern science and medicine. It is of particular interest to identify predictors of an unfavorable subsequent course of cognitive disorders, specifically, rapid progression. Our study assessed the informative role of various risk factors on the dynamics of cognitive impairment among mild cognitive impairment (MCI) patients.

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