Publications by authors named "BOGDANOVA M"

Article Synopsis
  • Fidelity to foraging locations can be beneficial in stable environments but risky in unpredictable conditions, affecting species’ population dynamics amid human-induced changes.
  • A study of common guillemots, Atlantic puffins, razorbills, and black-legged kittiwakes from the Isle of May examined their foraging fidelity across multiple years, revealing that personal foraging experiences influenced trip consistency.
  • All species displayed both site and route fidelity year after year, with puffins showing a tendency to align their foraging trips based on observations of fellow seabirds and local environmental cues.
View Article and Find Full Text PDF

Respiratory diseases are one of the leading causes of death in the world, which is why a lot of attention has been recently paid to studying the possible mechanisms for the development of pulmonary diseases and assessing the impact on their course. The microbiota plays an important role in these processes and influences the functionality of the human immune system. Thus, alterations in the normal microflora contribute to a reduction in immunity and a more severe course of diseases.

View Article and Find Full Text PDF

Understanding how ecological processes combine to shape population dynamics is crucial in a rapidly changing world. Evidence has been emerging for how fundamental drivers of density dependence in mobile species are related to two differing types of environmental variation-temporal variation in climate, and spatiotemporal variation in food resources. However, to date, tests of these hypotheses have been largely restricted to mid-trophic species in terrestrial environments and thus their general applicability remains unknown.

View Article and Find Full Text PDF

Pediatric-onset multiple sclerosis (POMS), is the manifestation of multiple sclerosis in individuals before 18 years of age. About a third of children with POMS show some form of lower cognitive performance. The purpose of this study is to examine using quantitative meta-analyses the effect size of altered performance between children with and without POMS on overall intelligence quotient (IQ), information processing speed, and language functions.

View Article and Find Full Text PDF
Article Synopsis
  • * To find non-surgical treatments, it's crucial to understand the cellular and molecular processes behind this calcification, and various imaging techniques like echocardiography and MRI are used for evaluation.
  • * The overview discusses cell culture models for research, emphasizing that while animal models exist, they don't fully mimic human conditions; also, it touches on additional techniques related to aortic valve calcification, such as identifying biomarkers.
View Article and Find Full Text PDF

Background: Identification of novel biomarkers could provide prognostic information and improve risk stratification in patients with aortic stenosis (AS). YKL-40 (chitinase-3-like protein 1), a protein involved in atherogenesis, is upregulated in human calcific aortic valves. We hypothesized that circulating YKL-40 would be elevated and associated with the degree of AS severity and outcome in patients with symptomatic AS.

View Article and Find Full Text PDF

Osteogenic differentiation is a tightly regulated process realized by progenitor cell osteoblasts. Notch signaling pathway plays a critical role in skeletal development and bone remodeling. Controversial data exist regarding the role of Notch activation in promoting or preventing osteogenic differentiation.

View Article and Find Full Text PDF

The article provides a review of the characteristics of cognitive impairment in multiple sclerosis (MS) and methods for its assessment in children. The features of the most frequently used neuropsychological batteries, with consideration of specifics of cognitive impairment in MS, and data on assessment of a state of cognitive functions obtained using neuropsychological tests are presented. The authors also discuss the issue of a long-term impact of the disease on a state of cognitive functions.

View Article and Find Full Text PDF

Valve interstitial cells (VICs) are crucial in the development of calcific aortic valve disease. The purpose of the present investigation was to compare the phenotype, differentiation potential and stem cell-like properties of cells from calcified and healthy aortic valves. VICs were isolated from human healthy and calcified aortic valves.

View Article and Find Full Text PDF

The purpose of the present study was to investigate whether SNF472, the hexasodium salt of myo-inositol hexaphosphate (IP6 or phytate): 1. Inhibits induced calcification in cultured aortic valve interstitial cells (VIC) as an in vitro model of aortic valve stenosis and 2. Whether inhibition is different in VIC obtained from healthy and calcified aortic valves.

View Article and Find Full Text PDF

Background: Colorectal cancer is one of the primary causes of cancer-related deaths and 5-fluorouracil (5-FU) therapy remains the cornerstone of treatment in these patients. Resistance to 5-FU represents a major obstacle; therefore, finding new predictive and prognostic markers is crucial for improvement of patient outcomes. Recently a new type of programmed cell death was discovered-necroptosis, which depends on receptor interacting protein 3 (RIPK3).

View Article and Find Full Text PDF

Aortic valve calcification is an active proliferative process, where interstitial cells of the valve transform into either myofibroblasts or osteoblast-like cells causing valve deformation, thickening of cusps and finally stenosis. This process may be triggered by several factors including inflammation, mechanical stress or interaction of cells with certain components of extracellular matrix. The matrix is different on the two sides of the valve leaflets.

View Article and Find Full Text PDF

Aims: Calcific aortic valve disease is the most common heart valve disease in the Western world. Bicuspid and tricuspid aortic valve calcifications are traditionally considered together although the dynamics of the disease progression is different between the two groups of patients. Notch signaling is critical for bicuspid valve development and NOTCH1 mutations are associated with bicuspid valve and calcification.

View Article and Find Full Text PDF

Flax, L., is a valuable multi-purpose plant, and currently, its genome is being extensively investigated. Nevertheless, mapping of genes in flax genome is still remaining a challenging task.

View Article and Find Full Text PDF

Autoinflammatory disease (AID) is a new concept formulated from the results of studying the pathogenesis of familial periodic fevers, a heterogeneous group of genetically determined diseases characterized by causelessly recurrent exacerbations of the inflammatory process due to genetically determined disorders of innate immunity and accompanied by uncontrolled hypersecretion of interleukin-1 (IL-1). These mechanisms were a basic model for understanding a wide range of rheumatologic and other inflammatory diseases of the internal organs. The late diagnosis of AIDs and their ineffective treatment increase the risk for the development and progression of secondary AA amyloidosis.

View Article and Find Full Text PDF

Aim: To determine the possibility of using the serum proinflammatory calcium-binding protein, or calgranulin C (S100A12), to assess activity and therapeutic efficiency in patients with periodic disease (PD) and other familial periodic fevers (FPFs).

Subjects And Methods: Thirty-five patients with PD and other FPDs, which were verified by molecular genetic study, were examined. In accordance with the disease activity, the patients were divided into 2 groups.

View Article and Find Full Text PDF

The paper considers a rare clinical case of severe Q fever in a young man with no compromised premorbid background. It describes and analyzes clinical manifestations and laboratory findings with consideration for the current data available in the literature. The issues of the differential diagnosis, laboratory diagnosis, and treatment of Q fever are discussed.

View Article and Find Full Text PDF
Article Synopsis
  • Mutations in the LMNA gene, which produces the lamin A/C protein, are linked to various disorders (laminopathies) primarily affecting mesenchymal tissues like fat, muscle, and bones.
  • The study examines how different LMNA mutations (such as G465D, R482L, G232E, R527C, and R471C) impact the differentiation of mesenchymal multipotent stem cells (MMSC) during fat and bone development.
  • Results showed that each LMNA mutation uniquely alters gene expression related to differentiation, affecting how effectively MMSC can become fat or bone cells, hinting at a specific relationship between mutations and cell fate outcomes.
View Article and Find Full Text PDF

The aim of the study was to evaluate the clinical and genetic predictors of AA amyloidosis in patients with familial Mediterranean fever (FMF). We retrospectively studied 170 Armenian patients who were admitted to the two tertiary centers in 2003-2014. The diagnosis of amyloidosis that was suspected clinically (new proteinuria or nephrotic syndrome) was confirmed histologically.

View Article and Find Full Text PDF

Nuclear lamins are the major proteins of nuclear envelope and provide the strength of nuclear membrane as well as the interaction of extra-nuclear structures with components of cell nucleus. Recently, it became clear that lamins not only play a structural role in the cell, but could also regulate cell fate, for example lamins could influence cell differentiation via interaction with components of the Notch signaling pathway. Human mutations in LMNA, encoding lamin A/C lead to diseases commonly referred to as laminopathies.

View Article and Find Full Text PDF
Article Synopsis
  • The study examines how the patterns of 5-hydroxymethylcytosine (5hmC) change in human preimplantation embryos during the process of DNA methylation reprogramming.
  • It reveals that in zygotes, 5hmC is more concentrated in the paternal chromosome set and is specifically localized to certain regions, known as R-bands, while being sparse in the maternal set.
  • As embryonic cleavage occurs, there is a loss of 5hmC and its distribution becomes less symmetrical among sister chromatids, indicating dynamic changes in hydroxymethylation patterns throughout early development.
View Article and Find Full Text PDF

The paper describes a case of imported babesiasis caused by Babesia microti. This is an account of the second case of babesiasis in the Russian-language medical literature. Its clinical picture and laboratory data in the course of the disease are depicted and analyzed.

View Article and Find Full Text PDF

A significant progress in the field of molecular-biological investigations resulted in definition of a new group of systemic diseases referred to as autoinflammatory. This group comprises familial periodic fevers: periodic disease (mediterranean fever), Muckle-Wells syndrome, others cryopirinopathy, TRAPS-syndrome. As shown by case reports, Muckle-Wells syndrome is not a rare disease, its sporadic forms are encountered as well as a less severe variant of cryopirinopathy - nonallergic cold urticaria.

View Article and Find Full Text PDF
Article Synopsis
  • The paper explores the sensitivity limit of localized surface plasmon resonance (LSPR) concerning its surrounding environment using perturbation theory.
  • It establishes that LSPR's detection capability is independent of particle shape, with sensitivity being directly related to resonance wavelength and the fraction of electromagnetic energy contained within the sensing volume.
  • Theoretical findings, validated by numerical calculations involving different geometries of gold nanoparticles, indicate that LSPR can match the sensitivity of traditional surface plasmon resonance sensors while being more resilient to temperature variations.
View Article and Find Full Text PDF