Human Melanoma and Glioblastoma Cells Express Cathepsins Supporting Reovirus Moscow Strain Infection.

This study evaluates the oncolytic potential of the Moscow strain of reovirus against human metastatic melanoma and glioblastoma cells. The Moscow strain effectively infects and replicates within human melanoma cell lines and primary glioblastoma cells, while sparing non-malignant human cells. Infection leads to the selective destruction of neoplastic cells, mediated by functional viral replication.

Biomedical Application Prospects of Gadolinium Oxide Nanoparticles for Regenerative Medicine.

Background/objectives: The aim was to study the possibilities of biomedical application of gadolinium oxide nanoparticles (GdO NPs) synthesized under industrial conditions, and evaluate their physicochemical properties, redox activity, biological activity, and safety using different human cell lines.

Methods: The powder of GdO NPs was obtained by a process of thermal decomposition of gadolinium carbonate precipitated from nitrate solution, and was studied using transmission electron microscopy (TEM), X-ray diffraction (XRD), Raman spectroscopy, mass spectrometry, and scanning electron microscopy (SEM) with energy dispersive X-ray analyzer (EDX). The redox activity of different concentrations of GdO NPs was studied by the optical spectroscopy (OS) method in the photochemical degradation process of methylene blue dye upon irradiation with an optical source.

RNA Stability: A Review of the Role of Structural Features and Environmental Conditions.

The stability of RNA is a critical factor in determining its functionality and degradation in the cell. In recent years, it has been shown that the stability of RNA depends on a complex interaction of external and internal factors. External conditions, such as temperature fluctuations, the level of acidity of the environment, the presence of various substances and ions, as well as the effects of oxidative stress, can change the structure of RNA and affect its stability.

Divergent Contribution of Cytoplasmic Actins to Nuclear Structure of Lung Cancer Cells.

A growing body of evidence suggests that actin plays a role in nuclear architecture, genome organisation, and regulation. Our study of human lung adenocarcinoma cells demonstrates that the equilibrium between actin isoforms affects the composition of the nuclear lamina, which in turn influences nuclear stiffness and cellular behaviour. The downregulation of β-actin resulted in an increase in nuclear area, accompanied by a decrease in A-type lamins and an enhancement in lamin B2.

The Motility of Mouse Spermatozoa Changes Differentially After 30-Minute Exposure Under Simulating Weightlessness and Hypergravity.

Research into the mechanisms by which gravity influences spermatozoa has implications for maintaining the species in deep space exploration and may provide new approaches to reproductive technologies on Earth. Changes in the speed of mouse spermatozoa after 30 min exposure to simulated weightlessness (by 3D-clinostat) and 2 g hypergravity (by centrifugation) were studied using inhibitory analysis. Simulated microgravity after 30 min led to an increase in the speed of spermatozoa and against the background of an increase in the relative calcium content in the cytoplasm.

Novel Peptidomimetic Cyclo-{E(I)-E(W)}Na (CP-88) with Hematopoietic Activity Sustained in Invasive and Oral Administration: Experimental and Preclinical Evaluation.

Over the last decades, significant progress has been made in studying agonistic and antagonistic hematopoietic peptides. The main disadvantage of this class of peptides is their low stability with noninvasive administration methods, which limits the widespread use of hematopoiesis-regulated peptide drugs in medical practice. The aim of this work is to study novel peptidomimetics with hematopoietic activity sustained in invasive and oral administration.

Survival Prognostic Factors of Non-Invasive Ventilation in Amyotrophic Lateral Sclerosis: A Systematic Review.

Objective: Amyotrophic lateral sclerosis is a neurodegenerative disease with high rates of disability and mortality. Non-invasive ventilation (NIV) is an effective method of treating patients, increasing life expectancy, but currently, predictors available to determine the best outcome of therapy in this category of patients are unknown. This systematic review aimed to determine the impact of prognostic factors on benefits from NIV application compared with non-NIV tools of treatment (invasive ventilation and standard care) in case of survival of ALS patients.

Machine Learning Model Discriminate Ischemic Heart Disease Using Breathome Analysis.

Ischemic heart disease (IHD) impacts the quality of life and is the most frequently reported cause of morbidity and mortality globally. To assess the changes in the exhaled volatile organic compounds (VOCs) in patients with vs. without ischemic heart disease (IHD) confirmed by stress computed tomography myocardial perfusion (CTP) imaging.

Drug-Induced Pulmonary Fibrosis: National Database Analysis.

Background/objectives: Pulmonary fibrosis (PF) results in a progressive decline of lung function due to scarring. Drugs are among the most common causes of PF. The objective of our study was to reveal the structure of drugs involved in PF development.

Autoimmune Diseases and Molecular Mimicry in Tuberculosis.

Unlabelled: Comorbidities in tuberculosis patients are increasing annually. Autoimmune pathology may influence the diagnosis and treatment of tuberculosis (TB). However, the molecular mimicry between (Mtb) and human autoantigens is an important provocative factor in the development of autoimmunity on one hand.

Enhancing Compliance With Preoperative Fasting Guidelines: A Closed-Loop Quality Improvement Initiative to Optimize Patient Safety and Outcomes.

Introduction Preoperative fasting is essential in surgical care to reduce the risk of pulmonary aspiration during anesthesia. International guidelines, such as those from the American Society of Anesthesiologists (ASA) and the European Society of Anaesthesiology (ESA), recommend fasting durations of six hours for solids and two hours for clear liquids. However, adherence to these guidelines often varies in clinical practice, leading to prolonged fasting times that can negatively impact patient outcomes, including dehydration, hypoglycemia, discomfort, and delayed recovery.

Evaluation of the efficacy of natural orifice specimen extraction surgery versus conventional laparoscopic surgery for colorectal cancers: A systematic review and meta-analysis.

Aim: Natural orifice specimen extraction surgery (NOSES) has gained significant importance in treating cancers. The current study is a meta-analysis that aimed to assess the short-term efficacy and long-term prognostic impact of NOSES and conventional laparoscopic (CL) surgery in the treatment of colorectal cancer (CRC).

Method: Published reports in several medical databases up to February 2024 were searched and information pertinent to outcomes of NOSES and CL in retrospective and randomized studies to treat CRC was collected.

Changes in Functional Activity of Platelets under the Influence of Submicron Particles Based on Mesoporous Silica and pH-Sensitive Polymers.

In vitro and in vivo effects of mesoporous silica nanoparticles (MSN) on the functional activity of platelets were studied in experiments on white rats. MSN particles, neither uncoated nor coated with calcium alginate, induced spontaneous platelet aggregation when added to platelet-rich plasma, but significantly enhanced ADP-induced platelet aggregation. Subcutaneous administration of uncoated and calcium alginate-coated MSN resulted in increased maximum size and rate of platelet aggregate formation 1 day post-injection.

The Effect of Rhythmic Optical Stimulation on Temporal Parameters of Human Sensorimotor Response and Their Relation to the Spectral Characteristics of the Initial EEG.

The effect of optical stimulation at a frequency of 10 Hz (OS) on temporal parameters of sensorimotor activity in healthy subjects (n=32) was studied. The expression of the activation response was determined by the ratio of spectral power values (SPα2, μV) of the high frequency (10-13 Hz) subrange of the α-rhythm of the initial EEG with closed and opened eyes and the frequency of the maximum α-peak (IAPF). A test for simple motor reaction time was performed under normal and OS conditions.

Surgical vs. Conservative Treatment of Distal Radius Fractures in the Elderly: A Systematic Review and Meta-Analysis.

Elderly patients with distal radius fractures (DRFs) pose a significant medical challenge due to their high incidence and related healthcare costs. Both surgical methods like volar plate fixation and conservative approaches such as casting are common, yet their relative effectiveness remains unclear. This review and meta-analysis compare surgical and conservative treatments, focusing on wrist functionality, upper extremity performance, grip strength, and pain after one year.

Cerebral vein thrombosis: management tactics with a focus on pregnancy, the use of hormone therapy and assisted reproductive technologies.

Cerebral vein thrombosis is a rare, life-threatening condition that has now become more commonly diagnosed due to advancements in imaging techniques. Our purpose is to improve understanding of pathogenesis, diagnosis and pregnancy and IVF management in patients with a history of cerebral thrombosis. We present an overview of the modern tactics of anticoagulant therapy for cerebral thrombosis with a focus on pregnancy, the use of hormone therapy, and assisted reproductive technologies.

Updates on Intrinsic Medicinal Chemistry of 1,4-dihydropyridines, Perspectives on Synthesis and Pharmacokinetics of Novel 1,4-dihydropyrimidines as Calcium Channel Blockers: Clinical Pharmacology.

Background: Several chemical studies described the physiological efficacy of 1,4- dihydropyridines (DHPs). DHPs bind to specific sites on the α1 subunit of L-type calcium channels, where they demonstrate a more pronounced inhibition of Ca2+ influx in vascular smooth muscle compared to myocardial tissue. This selective inhibition is the basis for their preferential vasodilatory action on peripheral and coronary arteries, a characteristic that underlies their therapeutic utility in managing hypertension and angina.

Early noninvasive ventilation in general wards for acute respiratory failure: an international, multicentre, open-label, randomised trial.

Background: The impact of noninvasive ventilation (NIV) managed outside the intensive care unit in patients with early acute respiratory failure remains unclear. We aimed to determine whether adding early NIV prevents the progression to severe respiratory failure.

Methods: In this multinational, randomised, open-label controlled trial, adults with mild acute respiratory failure (arterial oxygen partial pressure/fraction of inspiratory oxygen [Pao/FiO] ratio ≥200) were enrolled across 11 hospitals in Italy, Greece, and Kazakhstan.

Laser speckle contrast imaging with principal component and entropy analysis: a novel approach for depth-independent blood flow assessment.

Current study presents an advanced method for improving the visualization of subsurface blood vessels using laser speckle contrast imaging (LSCI), enhanced through principal component analysis (PCA) filtering. By combining LSCI and laser speckle entropy imaging with PCA filtering, the method effectively separates static and dynamic components of the speckle signal, significantly improving the accuracy of blood flow assessments, even in the presence of static scattering layers located above and below the vessel. Experiments conducted on optical phantoms, with the vessel depths ranging from 0.

Short-term outcomes of vessel-oriented D2 and D3 lymph node dissection for sigmoid colon cancer.

Background: Level of lymph nodes dissection (LND) and inferior mesenteric artery (IMA) ligation is still matter of debate of radical resection of colorectal cancer. This study aims to compare the short-term outcome of three different surgical techniques to treat sigmoid cancer: low ligation (LL) of the IMA with D3-LND, low IMA ligation with D2-LND, and high ligation (HL) of the IMA with D3-LND.

Methods: Patients affected by sigmoid colon cancer, who underwent radical resection with three different techniques (LL and D3-LND Group A, HL and D3-LND Group B, and LL with D2 LND- Group C), were included.

[Main directions in corneal nerve fibers research].

This lecture-format review presents a summary of methods for assessing the condition of corneal nerve fibers (CNF), their clinical significance, and an overview of their anatomy and physiology. It briefly analyzes the structural and functional characteristics of CNF in various ocular diseases, following eye surgeries, and in patients with systemic diseases accompanied by systemic polyneuropathy. The article describes in detail the management algorithm that involves a comprehensive analysis of CNF and Langerhans inflammatory cells, identifies the at-risk groups for developing structural nerve impairments, and outlines the main criteria for CNF assessment.

[Combined approach to cataract surgery in keratoconus].

Preparation for cataract surgery in patients with keratoconus (KC) is associated with particular challenges: calculating the optical power of the intraocular lens (IOL), selecting the appropriate IOL model, and considering additional interventions aimed at stabilizing KC and reducing irregular astigmatism. This article presents a fundamentally new approach to combined treatment of KC with cataract, consisting of two stages: first, performing bandage therapeutic-optical keratoplasty (BTOK), followed by cataract phacoemulsification as the second stage.

[Retinopathy associated with thrombotic microangiopathy of mixed origin (case report)].

This article presents a clinical case of ocular thrombotic microangiopathy of mixed origin (antiphospholipid syndrome, malignant arterial hypertension, multigenic thrombophilia). Multimodal imaging of the fundus provides a detailed assessment of its structures. Pathological changes in the choroid, the "retinal pigment epithelium - Bruch's membrane" complex, and the neurosensory retina, identified using fundus photography, short-wavelength autofluorescence, optical coherence tomography (OCT), and OCT angiography, are described as nonspecific in nature.

[Indirect comparison of anti-angiogenic agents in the treatment of diabetic macular edema].

Unlabelled: Diabetic macular edema (DME) is a leading cause of visual impairment and blindness among diabetic patients, its prevalence is continuing to increase worldwide. Faricimab, a bispecific antibody, represents a new generation of treatments for DME.

Purpose: This study presents an indirect comparison of the effectiveness and safety of faricimab versus other treatment options for DME.