Publications by authors named "O I Shevchuk"

is a highly infectious gram-negative bacterium that causes tularemia in humans and animals. It can survive and multiply in a variety of cells, including macrophages, dendritic cells, amoebae, and arthropod-derived cells. However, the intracellular life cycle of a bacterium varies depending on the cell type.

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Antimicrobial peptides (AMPs) play a pivotal role in the innate immune system as a frontline defense against microbial threats. AMPs can serve as biomarkers and alternative antibiotics, overcoming mortality related to multidrug-resistant pathogens in urinary tract infections (UTIs). While the relevance of AMPs in UTIs has been validated and AMP drugs approved by the US Food and Drug Administration are in clinical use, information about their modification status, regulation, and mechanism of action remains sparse.

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Article Synopsis
  • Urinary tract infections (UTIs) are commonly caused by bacteria, particularly Escherichia coli, with kidney infections (pyelonephritis) being severe and difficult to treat due to the unique kidney microenvironment.
  • The study tested how factors like sodium chloride, urea, and pH levels affect the effectiveness of antibiotics (ertapenem, levofloxacin, and ceftriaxone) against E. coli strains in conditions mimicking the kidney.
  • Findings showed that pH significantly affects levofloxacin's effectiveness, while sodium chloride and urea impact various strains differently, highlighting the need for more research on other antibiotics and kidney conditions for better treatment strategies.
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Urinary tract infection (UTI) is a very common disease that is accompanied by various complications in the affected person. UTI triggers diverse inflammatory reactions locally in the infected urinary bladder and kidney, causing tissue destruction and organ failure. Moreover, systemic responses in the entire body carry the risk of urosepsis with far-reaching consequences.

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Protein glycosylation is an essential post-translational modification in all domains of life. Its impairment in humans can result in severe diseases named congenital disorders of glycosylation (CDGs). Most of the glycosyltransferases (GTs) responsible for proper glycosylation are polytopic membrane proteins that represent challenging targets in proteomics.

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