1,203 results match your criteria: "Institute of General Pathology and Pathophysiology[Affiliation]"

Atherosclerosis is a major risk factor for cardiovascular disease (CVD), which is the leading cause of death worldwide. Atherosclerosis is initiated by endothelial activation, followed by a cascade of events (accumulation of lipids, fibrous elements, and calcification) triggering vasoconstriction and activation of inflammatory pathways. This review focuses on the various stages in the development of atherosclerosis, ranging from endothelial dysfunction to plaque rupture.

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Activated neutrophils release neutrophil extracellular traps (NETs), complex structures composed of extracellular genetic material and proteins sourced from the nucleus, granules, and cytoplasm in response to pathogenic inflammatory conditions. These NETs play a crucial role in the host's innate immune defense against invasive infections. Notably, in conditions like atherosclerosis, these extracellular formations can also be elicited by inflammatory stimuli such as lipids, prothrombotic factors, platelet aggregation, or proinflammatory cytokines.

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Atherosclerosis and associated cardiovascular diseases are the leading causes of illness and mortality worldwide. The development of atherosclerosis is a complex process involving oxidative stress, surplus lipid deposition and retention, endothelial dysfunction, and chronic inflammation. Developing novel anti-atherogenic and repurposing existing drugs requires the use of suitable animal models to characterise the fundamental mechanisms underlying atherosclerosis initiation and progression and to evaluate potential therapeutic effects.

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Recently, there has been a radical change in understanding of the nature of drugs based on highly diluted solutions. It has been established that their activity does not depend on the content of the original substance in dilutions, but is a consequence of the technological processing (TP) of dilutions with vibration, which accompanies each dilution during the preparation of solutions and, among others, leads to the formation of nanoparticles with certain properties. Repeated vibration treatment leads to the appearance of modifying activity that is absent in the original substance, and these effects of TP solutions can be exerted without direct contact with their targets, which clearly indicates the physical nature of the TP solution's activity.

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Intranasal administration of antibodies to glutamate for 14 days improved passive avoidance conditioning and reduces the content of IL-6 within 7 days after their withdrawal in the prefrontal cortex and hippocampus of aging C57BL/6 mice.

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A new class of biologics is obtained using the technologically processed of antibodies (TPA), which are used as the initial substance, and their dilution at each stage is accompanied by a controlled external vibrational (mechanical) treatment. This article focuses on the development and validation of a novel technique that can be applied for assessing the identity of TPA-based drugs. It has previously been found that after such treatment, the resulting solution either acquired new properties that were not present in the initial substance or a quantitative change in properties compared to the initial substance was observed.

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Article Synopsis
  • * Recent research has identified specific genetic markers (SNPs) that are linked to SS severity and related health complications, emphasizing the role of both the immune system and environmental triggers like viral infections.
  • * There is emerging interest in the role of vitamin D in managing immune responses in SS patients, suggesting future research should explore genetic testing and personalized treatments to improve management strategies.
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The current Special Issue, "Molecular and Cellular Mechanisms of CVD: Focus on Atherosclerosis", is dedicated to exploring the various mechanisms involved in atherogenesis [...

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  • - Systemic lupus erythematosus (SLE) is an autoimmune disorder mostly affecting young women, with causes linked to genetics, environmental influences, and pathogen interactions that disrupt immune function and lead to chronic inflammation.
  • - Mitochondria are key players in SLE development as they regulate energy production, reactive oxygen species (ROS) levels, and cell death pathways; their dysfunction contributes to immune dysregulation and increased inflammation in immune cells.
  • - Targeting mitochondrial function with drugs like sirolimus and N-acetylcysteine shows promise in treating SLE by restoring mitochondrial health, reducing oxidative stress, and improving immune responses, as evidenced by positive results in clinical and preclinical studies.
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  • - This review analyzes mitochondrial DNA (mtDNA) mutations in colorectal cancer stem cells (CSCs) and their impact on tumor behavior and treatment strategies
  • - It highlights the unique characteristics of CSCs, including their self-renewal abilities and resistance to standard therapies, while noting their significant metabolic differences and reliance on functional mitochondria
  • - The article suggests new therapeutic avenues targeting mitochondrial function in CSCs and emphasizes the necessity for further research, including developing preclinical models to enhance treatment options for colorectal cancer
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Foam cells play a crucial role in the initiation and progression of atherosclerosis, a condition marked by the development and growth of plaques that narrow blood vessel lumens. This narrowing can prevent normal blood flow and, in severe cases, lead to plaque rupture and blood clot formation, which can cause stroke or myocardial infarction. The origin of foam cells is diverse, arising from monocytes, vascular smooth muscle cells, stem/progenitor cells, and dendritic and endothelial cells.

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Unlabelled: Аims: This research aimed to study the features of gene regulation of the inflammatory response in cells carrying mitochondrial mutations associated with atherosclerosis.

Background: Inflammation plays an important, if not decisive, role in the occurrence of atherosclerotic lesions and then accompanies it throughout its further development. Thus, atherogenesis is a chronic inflammatory process.

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Intimal Macrovascular Pericytes: Their Role in Vascular Biology and Atherogenesis.

Curr Med Chem

September 2025

Laboratory of Cell Physiology, Institute of Biomedical Problems, Russian Academy of Sciences, 76a Khoroshevskoye Shosse, Moscow, 123007, Russia.

Atherosclerosis remains a major challenge to global healthcare despite decades of research and constant trials of novel therapeutic approaches. One feature that makes atherosclerosis treatment so elusive is an insufficient understanding of its origins and the early stages of the pathological process, which limits our means of effective prevention of the disease. Macrovascular pericytes are cells with distinct shapes that are located in the arterial wall of larger vessels and are in many aspects similar to microvascular pericytes that maintain the functionality of small vessels and capillaries.

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The Effect of Bariatric Surgery on PAI-1 Levels: A Systematic Review and Meta-analysis.

Obes Surg

October 2024

Center for Global Health Research, Saveetha Medical College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, India.

The purpose of this meta-analysis was to determine the effect of bariatric surgery on circulating PAI-1. The meta-analysis was provided by comprehensive meta-analysis (CMA) V4 software. Meta-analysis of 33 studies showed a significant decrease in circulating PAI-1 after bariatric surgery (p < 0.

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Cold exposure, especially in combination with exercise, is a common procedure to fortify the body. However, its effects in old age are poorly understood. Using the homeostasis stability coefficient as an indicator, the body response to a 20-min swim in cold water was for the first time studied comprehensively in old and young Wistar rats.

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Article Synopsis
  • * Using PCR and pyrosequencing, researchers identified various mtDNA mutations, noting four proatherogenic (harmful) and three antiatherogenic (protective) mutations.
  • * The study also revealed a geographic pattern in the distribution of certain mutations, highlighting a west-east gradient in specific mtDNA mutations associated with atherosclerosis.
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Background: Cells of different human organs and tissues contain different numbers of mitochondria. In these organelles, there are different copies of the mitochondrial genome, which is characteristic of a certain organ or tissue.

Objective: The aim of the investigation was to analyze the results of scientific works dedicated to the analysis of heteroplasmy levels of mitochondrial genome mutations in a number of organs and tissues.

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Background: Awareness of age-related features of carcinogenesis and the importance of cellular immunity is crucial for developing effective antitumor therapies for specific patient groups.

Methods: In this study, we examined different populations of cancer stem cells (CSCs) and circulating tumor cells (CTCs) in "young" (8-10 weeks) and "aged" (80-82 weeks) C57BL/6 male mice. We used an orthotopic model of Lewis lung carcinoma (LLC) to evaluate the effectiveness of cell therapy targeting lung cancer through reprogrammed CD8-positive T cells (rCD8+ T cells) in mice from two different ages.

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  • Stem cell technology is pivotal in regenerative medicine, utilizing stem/progenitor cells for repairing or replacing damaged tissues to treat various diseases like cardiovascular and neurological disorders.
  • Cell therapy works through two main mechanisms: the replacement of damaged tissue and the release of biologically active molecules that aid in tissue regeneration, but challenges like transportation complexity and immune rejection exist.
  • The study focuses on the beneficial effects of proteins secreted by glial progenitor cells, showing they can reduce inflammation and support neuron survival by inhibiting harmful factors and maintaining cellular health, potentially paving the way for new therapeutic applications.
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Mediterranean diet is frequently associated with longevity and a lower incidence of adverse cardiovascular events because of the biological activities and health effects of olives - its key component. Olive oil, olive leaf extract, fruits and different by-products contain many bioactive components that exert anti-oxidant, anti-inflammatory and anti-apoptotic activities. In this review, we focus on the recent studies exploring molecular mechanisms underlying the cardioprotective properties of different olive oils, olive leave extracts, and specific micro-constituents (such as oleuropein, tyrosol, hydroxytyrosol and others) on rodent models and in clinical trials on human subjects.

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  • The study examined the effects of the dopamine D2 receptor antagonist spiperone on combined lung conditions—emphysema and lung cancer—in C57BL/6 mice.
  • Results indicated that spiperone reduced lung inflammation, tumor size, and metastasis, along with decreasing the number of cancer stem cells (CSCs) in both the lungs and blood of treated mice.
  • The findings suggest that targeting dopamine D2 receptors could be a viable strategy for treating lung cancer in patients suffering from emphysema.
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Advancements in curcumin-loaded PLGA nanoparticle delivery systems: progressive strategies in cancer therapy.

J Drug Target

December 2024

Center for Global Health Research, Saveetha Medical College and Hospitals, Saveetha Institute of Medical and Technical Sciences, Saveetha University, Chennai, India.

Cancer is a leading cause of death worldwide, and imposes a substantial socioeconomic burden with little impact especially on aggressive types of cancer. Conventional therapies have many serious side effects including generalised systemic toxicity which limits their long-term use. Tumour resistance and recurrence is another main problem associated with conventional therapy.

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  • A group of neurology experts is creating an algorithm to help outpatient neurologists diagnose and treat mononeuropathies, which are nerve disorders affecting a single nerve.
  • They are recommending specific tests and procedures for certain tunnel mononeuropathies, based on the latest evidence about how well different treatments work and their safety.
  • The goal is to provide a standardized approach to improve patient care in diagnosing and managing these conditions.
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A series of 13 new 3-substituted 5-(5-nitro-2-furyl)-1,2,4-oxadiazoles was synthesized from different aminonitriles. All compounds were screened in the disc diffusion test at a 100 μg/mL concentration to determine the bacterial growth inhibition zone presence and diameter, and then the minimum inhibitory concentrations (MICs) were determined for the most active compounds by serial dilution. The compounds showed antibacterial activity against ESKAPE bacteria, predominantly suppressing the growth of 5 species out of the panel.

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Experimental model of resection craniotomy with subsequent reconstruction of the defect with a polymer implant enables comprehensive assessment of functional and ultrastructural changes during replacement of the damaged tissue. Reconstruction of a skull defect was accompanied by transient motor disturbance in the acute period and did not cause functional disorders and neurological deficits in a delayed period. Histological examination of osteal and brain tissue revealed no pathological reactions that could be associated with the response to the chemical components of the implant.

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