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Shared mechanisms of enhanced plasmid maintenance and antibiotic tolerance mediated by the VapBC toxin:antitoxin system.
mBio
December 2024
Sir William Dunn School of Pathology, University of Oxford, Oxford, United Kingdom.
Unlabelled: Toxin:antitoxin (TA) systems are widespread in bacteria and were first identified as plasmid addiction systems that kill bacteria lacking a TA-encoding plasmid following cell division. TA systems have also been implicated in bacterial persistence and antibiotic tolerance, which can be precursors of antibiotic resistance. Here, we identified a clinical isolate of (CS14) with a remarkably stable pINV virulence plasmid; pINV is usually frequently lost from , but plasmid loss was not detected from CS14.
View Article and Find Full Text PDFComparative Study of Gut Microbiome in Urban and Rural Eurasian Tree Sparrows.
Animals (Basel)
December 2024
College of Life Sciences, Yangtze University, Jingzhou 434025, China.
Gut microbiota play a significant role in various physiological functions, including digestion, nutritional metabolism, and host immune function. The composition of these gut microbes is largely influenced by habitats. This study examines the gut microbiota of the Eurasian tree sparrow () inhabiting rural and urban environments to understand the effects of habitat variation on microbial composition.
View Article and Find Full Text PDFA corollary study to substantiate the therapeutic role of receptor from in mitigating the sperm immobilization factor-mediated negative influences on mouse spermatozoa: a molecular mimicry-based approach.
Reprod Fertil Dev
December 2024
Department of Microbiology, Panjab University, Chandigarh, India.
Context Sperm immobilization factor (SIF) isolated from Staphylococcus aureus has been implicated earlier in the laboratory in infertility due to its negative impact on sperm function. Moreover, SIF was found to bind not only to human and mouse spermatozoa but also to several bacteria. Among the array of bacteria, we selected Shigella flexneri to investigate if it shares antigenic determinants with spermatozoa.
View Article and Find Full Text PDFBiofilm-Forming Antibiotic-Resistant Bacteria in Water From Distribution Systems: Occurrence and Public Health Implications.
Int J Microbiol
November 2024
Department of Microbiology, Redeemer's University, Ede, Osun State, Nigeria.
Biofilm is a structurally-connected microbial community, covered by a self-produced polymeric matrix and adhered to biotic or abiotic surfaces. This study aimed to evaluate the occurrence of biofilm-producing antibiotic-resistant bacteria in water from distribution systems. Water samples were taken from 32 tanks across Ondo City and Akure metropolis, Nigeria.
View Article and Find Full Text PDFDysbiotic signatures and diagnostic potential of gut microbial markers for inflammatory bowel disease in Korean population.
Sci Rep
October 2024
Department of Gastroenterology, Center for Crohn's and Colitis, Kyung Hee University Hospital, Kyung Hee University College of Medicine, Seoul, Republic of Korea.
Article Synopsis
- * IBD patients, especially those with Crohn's disease, showed lower microbial diversity compared to healthy individuals, with a notable increase in the Escherichia-Shigella genus related to dysbiosis.
- * The study found that specific microbial taxa could help in diagnosing IBD and that functional pathways linked to bacterial pathogenesis were upregulated, indicating potential areas for future clinical research on IBD management.
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