Publications by authors named "Akhmetova K"

Objectives: This study investigated stroke survivors and the characteristics of care management after discharge from hospital to home. The study aimed to identify caregiving difficulties and to assess mastery of skills in implementing recovery activities at home. This was a cross-sectional study.

View Article and Find Full Text PDF

The prevalence of metabolic syndrome (MetS) in Kazakhstan reaches 40%. The presence of an association between certain genetic markers and the development of MetS will allow more accurately determining the cardiovascular risk for patients with hypertension and personalizing preventive recommendations. The purpose of the study was to investigate the presence of an associative relationship between various polymorphisms of the α-synuclein gene and the development of MetS in Kazakh people with high blood pressure.

View Article and Find Full Text PDF

The influence of heat shock proteins (HSPs) on protein quality control systems in cardiomyocytes is currently under investigation. The effect of HSPs on the regulated cell death of cardiomyocytes (CMCs) is of great importance, since they play a major role in the implementation of compensatory and adaptive mechanisms in the event of cardiac damage. HSPs mediate a number of mechanisms that activate the apoptotic cascade, playing both pro‑ and anti‑apoptotic roles depending on their location in the cell.

View Article and Find Full Text PDF

Golgi homeostasis require the activation of Arf GTPases by the guanine-nucleotide exchange factor requires GBF1, whose recruitment to the Golgi represents a rate limiting step in the process. GBF1 contains a conserved, catalytic, Sec7 domain (Sec7d) and five additional (DCB, HUS, HDS1-3) domains. Herein, we identify the HDS3 domain as essential for GBF1 membrane association in mammalian cells and document the critical role of HDS3 during the development of .

View Article and Find Full Text PDF

Background: Metabolic syndrome (MS) is becoming a major health risk in the world. Disorders of homeostasis are a trigger for MS and subsequent cardiometabolic diseases (CMDs). Its physiological role can be supported by biological protectors (BP).

View Article and Find Full Text PDF

Stimulator of interferon genes (STING) plays an important role in innate immunity by controlling type I interferon response against invaded pathogens. In this work, we describe a previously unknown role of STING in lipid metabolism in . Flies with deletion are sensitive to starvation and oxidative stress, have reduced lipid storage, and downregulated expression of lipid metabolism genes.

View Article and Find Full Text PDF

Formation of reactive oxygen species (ROS) via HO activation is of vital importance in catalytic environmental chemistry, especially in degradation of organic pollutants. A new mixed niobium-cerium oxide (NbCeO) was tailored for this purpose. A thorough structural and chemical characterization of NbCeO along with CeO and NbO reference materials was carried out using TEM/STEM/EDS, SEM, XRD, XPS, EPR, UV-vis and N physisorption.

View Article and Find Full Text PDF

Cell migration is an important morphogenetic process necessary at different stages of individual development and body functioning. The initiation and maintenance of the cell movement state requires the activation of many factors involved in the regulation of transcription, signal transduction, adhesive interactions, modulation of membranes and the cytoskeleton. However, cell movement depends on the status of both migrating and surrounding cells, interacting with each other during movement.

View Article and Find Full Text PDF

Meier-Gorlin syndrome (MGS) is a rare, autosomal recessive disorder characterized by microtia, primordial dwarfism, small ears, and skeletal abnormalities. Patients with MGS often carry mutations in genes encoding the subunits of the Origin Recognition Complex (ORC), components of the prereplicative complex and replication machinery. Orc6 is an important component of ORC and has functions in both DNA replication and cytokinesis.

View Article and Find Full Text PDF
Article Synopsis
  • - The origin recognition complex (ORC) is crucial for initiating DNA replication in eukaryotes, and the Orc6 subunit, although the smallest and least conserved, is essential for DNA replication and organism viability.
  • - Researchers have determined the structure of human Orc6 and found it consists of three independent domains, as well as a specific DNA-binding domain.
  • - Key amino acids within Orc6 are vital for its interaction with DNA; changes to these amino acids hinder DNA binding and decrease DNA replication levels, suggesting Orc6’s important role in assembling the ORC at replication origins.
View Article and Find Full Text PDF

Hydrogen bonds between pyridine (Py) and haloforms (CHX3, X = F, Cl, Br, I) and their impact on the ring related vibrational frequencies of pyridine were studied using a combination of solution phase FTIR and quantum mechanical DFT and ab initio calculations. With various possibilities for dimers that could potentially be formed between pyridine and haloforms, the calculations identified an intermolecular ring structure, which was established based on both the [Py-]N-involved hydrogen bond and the hydrogen bond between the alpha H on pyridine ([Py-]H) and the halogen atom on the haloform ([CHX2-]X), as the most energetically stable form. The formation of a ring between the two molecules makes the entire ring structure more rigid on one hand, and weakens the [Py-]N-involved hydrogen bond on the other hand.

View Article and Find Full Text PDF

Septins belong to a family of conserved GTP-binding proteins found in majority of eukaryotic species except for higher plants. Septins form nonpolar complexes that further polymerize into filaments and associate with cell membranes, thus comprising newly acknowledged cytoskeletal system. Septins participate in a variety of cell processes and contribute to various pathophysiological states, including tumorigenesis and neurodegeneration.

View Article and Find Full Text PDF

Septin proteins are polymerizing GTPases that are found in most eukaryotic species. Septins are important for cytokinesis and participate in many processes involving spatial modifications of the cell cortex. In , septin proteins Pnut, Sep1, and Sep2 form a hexameric septin complex.

View Article and Find Full Text PDF

The Pnut protein belongs to the family of septins, which are conserved GTPases participating in cytokinesis and many more other fundamental cellular processes. Because of their filamentous appearance, membrane association, and functions, septins are considered as the fourth component of the cytoskeleton, along with actin, microtubules, and intermediate filaments. However, septins are much less studied than the other cytoskeleton elements.

View Article and Find Full Text PDF

The gene functions in oogenesis were studied. It was demonstrated that the suppression of expression by RNA interference in follicle cells led to oocyte polarization defects, anomalous cytokinesis in the chorion cells, and aberrant chromatin condensation in follicle cells. No oogenesis abnormalities were observed in females with decreased gene expression in ovarian germline cells.

View Article and Find Full Text PDF

Meier-Gorlin syndrome (MGS) is an autosomal recessive disorder characterized by microtia, primordial dwarfism, small ears, and skeletal abnormalities. Patients with MGS often carry mutations in the genes encoding the components of the pre-replicative complex such as Origin Recognition Complex (ORC) subunits Orc1, Orc4, Orc6, and helicase loaders Cdt1 and Cdc6. Orc6 is an important component of ORC and has functions in both DNA replication and cytokinesis.

View Article and Find Full Text PDF

Septins belong to a family of polymerizing GTP-binding proteins that are important for cytokinesis and other processes that involve spatial organization of the cell cortex. We reconstituted a recombinant Drosophila septin complex and compared activities of the wild-type and several mutant septin complex variants both in vitro and in vivo. We show that Drosophila septin complex functions depend on the intact GTP-binding and/or hydrolysis domains of Pnut, Sep1, and Sep2.

View Article and Find Full Text PDF

Proper mitochondrial morphogenesis is crucial for successful development of motile sperm. It was known that recessive Drosophila melanogaster mutation emm caused anomalies in the formation of a mitochondrial derivative--nebenkern and led to male sterility. Here we identified primary mutation effect and showed that emm is required for the formation and maintenance of inner mitochondrial structure starting from early spermatocytes.

View Article and Find Full Text PDF

Development of Drosophila imaginal discs is accompanied by a high-ordered cell proliferation. However, the distinctions in the topographic distribution of mitoses at different developmental stages are insufficiently studied. In this work, we have analyzed the distribution of mitoses in the wing disc of third-instar larvae and determined the regions where mitotic clustering.

View Article and Find Full Text PDF