A comparative analysis of mass-volume characteristics of structural and morphological components of hen eggs before incubation and on the fifth (HH25-HH27) and 10th (HH36) days of incubation was carried out. During incubation, egg weight decreased by 9.25% (10 days), mainly due to a decrease in albumen weight (35.
View Article and Find Full Text PDFAssessing the embryotoxicity and teratogenicity of various substances and processes is crucial due to their complexity and resource intensity. The chicken embryo (CE) serves an ideal model for simulating the first months of mammalian embryonic development. This makes the CE a reliable model for testing teratogenic effects, particularly in relation to the nervous system (NS), which experiences developmental abnormalities second in frequency only to cardiovascular teratogenic disorders.
View Article and Find Full Text PDFUnlabelled: The pediatric liver cancers, hepatoblastoma and hepatocellular carcinoma, are dangerous cancers which often spread to the lungs. Although treatments with cisplatin significantly improve outcomes, cisplatin may not eliminate metastasis-initiating cells. Our group has recently shown that the metastatic microenvironments of hepatoblastoma contain Cancer Associated Fibroblasts (CAFs) and neuron-like cells, which initiate cancer spread from liver to lungs.
View Article and Find Full Text PDFBackground And Aims: Lung metastases are the most threatening signs for patients with aggressive hepatoblastoma (HBL). Despite intensive studies, the cellular origin and molecular mechanisms of lung metastases in patients with aggressive HBL are not known. The aims of these studies were to identify metastasis-initiating cells in primary liver tumors and to determine if these cells are secreted in the blood, reach the lung, and form lung metastases.
View Article and Find Full Text PDFSynthesis of 0.4 ± 0.03 g/L per day of pure and porous bacterial cellulose (BC) scaffolds (scaffBC) and BC scaffolds modified with gelatin (scaffBC/Gel) was carried out using the Medusomyces gisevii Sa-28 bacterial strain.
View Article and Find Full Text PDFZh Vopr Neirokhir Im N N Burdenko
October 2023
The authors discuss surgical decompression of the brain in patients with malignant ischemic cerebral infarcts. Successful staged treatment of a middle-aged patient with malignant ischemic stroke in the middle cerebral artery basin is presented.
View Article and Find Full Text PDFMyotonic Dystrophy type 1 (DM1) is a neuromuscular disease associated with toxic RNA containing expanded CUG repeats. The developing therapeutic approaches to DM1 target mutant RNA or correct early toxic events downstream of the mutant RNA. We have previously described the benefits of the correction of the GSK3β-CUGBP1 pathway in DM1 mice ( model) expressing 250 CUG repeats using the GSK3 inhibitor tideglusib (TG).
View Article and Find Full Text PDFZh Nevrol Psikhiatr Im S S Korsakova
July 2023
Objective: To evaluate the safety and efficacy of Fortelyzin in the performance of staged reperfusion therapy for acute ischemic stroke (intravenous thrombolytic therapy plus mechanical thrombectomy) in anterior circulation within the FORTA RF multicenter pilot study.
Material And Methods: The study included 72 patients with acute ischemic stroke in anterior circulation, who underwent staged reperfusion therapy in four vascular centers of the Russian Federation from December 2019 to January 2023.
Results: The mean time from illness onset to hospitalization was 94.
Background And Aims: Hepatoblastoma (HBL), a deadly malignancy in children, is the most common type of pediatric liver cancer. We recently demonstrated that β-catenin, phosphorylated at S675 (ph-S675-β-catenin), causes pathological alterations in fibrolamellar hepatocellular carcinoma (FLC), by activating oncogenes and fibrotic genes via human genomic regions, known as cancer-enhancing genomic regions or aggressive liver cancer domains (CEGRs/ALCDs). The aim of this study was to determine the role of the ph-S675-β-catenin-TCF4-CEGRs/ALCDs pathway in HBL.
View Article and Find Full Text PDFCurrent studies concerning myotonic dystrophy type 1 (DM1) are in the process of transitioning from molecular investigations to preclinical and clinical trials [...
View Article and Find Full Text PDFInt J Mol Sci
September 2022
Myotonic Dystrophies type 1 (DM1) and type 2 (DM2) are complex multisystem diseases without disease-based therapies. These disorders are caused by the expansions of unstable CTG (DM1) and CCTG (DM2) repeats outside of the coding regions of the disease genes: in DM1 and in DM2. Multiple clinical and molecular studies provided a consensus for DM1 pathogenesis, showing that the molecular pathophysiology of DM1 is associated with the toxicity of RNA CUG repeats, which cause multiple disturbances in RNA metabolism in patients' cells.
View Article and Find Full Text PDFFibrolamellar hepatocellular carcinoma (FLC) is a disease that occurs in children and young adults. The development of FLC is associated with creation of a fusion oncoprotein DNAJB1-PKAc kinase, which activates multiple cancer-associated pathways. The aim of this study was to examine the role of human genomic regions, called cancer-enhancing genomic regions or aggressive liver cancer domains (CEGRs/ALCDs), in the development of FLC.
View Article and Find Full Text PDFZh Nevrol Psikhiatr Im S S Korsakova
August 2022
Aim Of The Study: To investigate the efficacy and safety of non-immunogenic staphylokinase (NS) compared with alteplase (A) in patients with acute ischemic stroke (AIS) within 4.5 h after symptom onset.
Material And Methods: 336 patients with IS within 4.
Zh Nevrol Psikhiatr Im S S Korsakova
June 2022
Objective: To study the etiopathogenetic and clinical features of inpatients with venous thrombosis.
Material And Methods: The analysis of 25 medical cases of patients with venous thrombosis was performed.
Results: Cerebral venous thrombosis most often developed in females (88%), the average age was 36 years.
genus has been extensively studied due to its diverse biological activities. We evaluated the methanolic extract of leaves of (Green type) (Thunb.) Jacques, the species that is less studied compared to .
View Article and Find Full Text PDFUnlabelled: was to study the level of amylolytic activity and microtomographic index of synovial fluid density as well as to substantiate their clinical and pathogenetic significance by identifying correlations with the known informative indicators reflecting characteristic features of the pathological process in various joint diseases.
Materials And Methods: Samples of synovial fluid from 95 patients with various joint pathologies at the stage of the disease progression characterized by copious effusion into articular cavities have been examined. Synovial fluid samples obtained by knee arthrocentesis served as a material for the investigation.
Finding new, safe strategies to prevent and control rheumatoid arthritis is an urgent task. Bioactive peptides and peptide-rich protein hydrolyzate represent a new trend in the development of functional foods and nutraceuticals. The resulting tissue hydrolyzate of the chicken embryo (CETH) has been evaluated for acute toxicity and tested against chronic arthritis induced by Freund's full adjuvant (modified Mycobacterium butyricum) in rats.
View Article and Find Full Text PDFBackground & Aims: Epigenetic regulation of gene expression plays a critical role in the development of liver cancer; however, the molecular mechanisms of epigenetic-driven liver cancers are not well understood. The aims of this study were to examine molecular mechanisms that cause the dedifferentiation of hepatocytes into cancer cells in aggressive hepatoblastoma and test if the inhibition of these mechanisms inhibits tumor growth.
Methods: We have analyzed CCAAT/Enhancer Binding Protein alpha (C/EBPα), Transcription factor Sp5, and histone deacetylase (HDAC)1 pathways from a large biobank of fresh hepatoblastoma (HBL) samples using high-pressure liquid chromatography-based examination of protein-protein complexes and have examined chromatin remodeling on the promoters of markers of hepatocytes and p21.
Anthrax is a concern for public health and veterinary medicine in Russia. The available phylogenetic data on isolates from Russia and neighboring CIS countries are clearly not enough to gain a better understanding of their position in the global phylogenetic population structure of this pathogen. In this study, we analyzed the genomes of 66 Bacillus anthracis strains, which were isolated between 1935 and 2019 from different sources in Russia, as well as in Ukraine, Azerbaijan, Georgia, Armenia and Moldova.
View Article and Find Full Text PDFThe search for new strategies for the prevention and control of osteoporosis is an urgent task. Functional foodstuffs and their components are of particular interest in this regard. was to study the effect of bread enriched with protein, dietary fiber, calcium, iron and iodine on the state of the bone tissue of rats in a model of postmenopausal osteoporosis.
View Article and Find Full Text PDFMyotonic dystrophy type 1 (DM1) is a rare genetic disorder, characterised by muscular dystrophy, myotonia, and other symptoms. DM1 is caused by the expansion of a CTG repeat in the 3'-untranslated region of DMPK. Longer CTG expansions are associated with greater symptom severity and earlier age at onset.
View Article and Find Full Text PDFIn food biotechnology, is of great interest as a source of natural antioxidants and angiotensin-converting enzyme (ACE) inhibitors. However, research in this area has not yet been completed. The effect of various drying methods on the structural properties and the rehydration capacity of mushrooms was investigated in this paper.
View Article and Find Full Text PDFMyotonic dystrophy type 1 (DM1) is a complex genetic disease affecting many tissues. DM1 is caused by an expansion of CTG repeats in the 3'-UTR of the gene. The mechanistic studies of DM1 suggested that mRNA, containing expanded CUG repeats, is a major therapeutic target in DM1.
View Article and Find Full Text PDFNonalcoholic fatty liver disease (NAFLD) involves development of hepatic steatosis, fibrosis, and steatohepatitis. Because hepatic steatosis appears first in NAFLD animal models, the current therapy development focuses on inhibition of hepatic steatosis, suggesting that further steps of NAFLD will be also inhibited. In this report, we show that the first event of NAFLD is liver proliferation, which drives fibrosis in NAFLD.
View Article and Find Full Text PDFMyotonic dystrophy type 1 (DM1) is a multisystem neuromuscular disease without cure. One of the possible therapeutic approaches for DM1 is correction of the RNA-binding proteins CUGBP1 and MBNL1, misregulated in DM1. CUGBP1 activity is controlled by glycogen synthase kinase 3β (GSK3β), which is elevated in skeletal muscle of patients with DM1, and inhibitors of GSK3 were suggested as therapeutic molecules to correct CUGBP1 activity in DM1.
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