Necrotizing fasciitis and myositis caused by group A streptococci (GAS) are among the most fulminating infections, with a mortality rate of 20% to 30%. Although numerous regimens have been utilized in attempts to control these devastating infections, such as combinations of various antimicrobial agents and intravenous immunoglobulin (IVIG) as well as hyperbaric oxygen therapy, none have been the complete answer. Zhu and colleagues have utilized a transposon-directed insertion-site sequencing (TraDIS) protocol to identify 126 genes of M1 and 116 genes of M28 strains of GAS required for myositis, of which 25% encode transporters, which could be used as possible targets for future therapeutic protocols.
Download full-text PDF |
Source |
|---|---|
| http://www.ncbi.nlm.nih.gov/pmc/articles/PMC6355235 | PMC |
| http://dx.doi.org/10.1172/JCI126482 | DOI Listing |
Publication Analysis
Top Keywords
Similar Publications
Bacteraemia after transcatheter aortic valve implantation: a nationwide cohort study.
Heart
December 2024
Department of Cardiology, Copenhagen University Hospital, Rigshospitalet, Copenhagen, Denmark.
Background: Bacteraemia and infective endocarditis (IE) are rare but severe complications of transcatheter aortic valve implantation (TAVI). Limited data exist on the incidence and microbiological profile of early bacteraemia in this population. This study aimed to evaluate the 6-month incidence of bacteraemia, IE and associated mortality following TAVI.
View Article and Find Full Text PDFCaveolin-Mediated Endocytosis: Bacterial Pathogen Exploitation and Host-Pathogen Interaction.
Cells
December 2024
Molecular and Cellular Microbiology Laboratory, Department of Biological Sciences, Old Dominion University, Norfolk, VA 23529, USA.
Within mammalian cells, diverse endocytic mechanisms, including phagocytosis, pinocytosis, and receptor-mediated endocytosis, serve as gateways exploited by many bacterial pathogens and toxins. Among these, caveolae-mediated endocytosis is characterized by lipid-rich caveolae and dimeric caveolin proteins. Caveolae are specialized microdomains on cell surfaces that impact cell signaling.
View Article and Find Full Text PDFInsights into Within-Host Evolution and Dynamics of Oral and Intestinal Streptococci Unveil Niche Adaptation.
Int J Mol Sci
December 2024
Division of Oral Microbiology and Immunology, Department of Operative Dentistry, Periodontology and Preventive Dentistry, Rheinisch-Westfälische Technische Hochschule (RWTH) University Hospital, 52074 Aachen, Germany.
The oral-gut axis is a complex system linking the oral cavity and gastrointestinal tract, impacting host health and microbial composition. This study investigates genetic changes and adaptive mechanisms employed by streptococci-one of the few genera capable of colonizing oral and intestinal niches-within the same individual. We conducted whole-genome sequencing (WGS) on 218 streptococcal isolates from saliva and fecal samples of 14 inflammatory bowel disease (IBD) patients and 12 healthy controls.
View Article and Find Full Text PDFAntimicrobial resistance and epidemiological patterns of Streptococcus pyogenes in Türkiye.
J Infect Public Health
December 2024
Department of Medical Microbiology, School of Medicine, Acibadem Mehmet Ali Aydinlar University, Istanbul, Turkey; Department of Medical Biotechnology, Institute of Health Sciences, Acibadem Mehmet Ali Aydinlar University, Istanbul, Turkey. Electronic address:
Background: Drug-resistant Group A beta-hemolytic streptococci remain significant infectious agents globally. This study investigated the major S. pyogenes strains responsible for infections in Türkiye and their susceptibility to beta-lactam and macrolide antibiotics.
View Article and Find Full Text PDFClinicopathological presentation of liver abscesses and hydatid liver disease from two South African tertiary hospitals.
World J Hepatol
December 2024
Department of Surgery, University of Witwatersrand, School of Clinical Medicine, Johannesburg 2193, Gauteng, South Africa.
Background: Hepatic abscesses represent infections of the liver parenchyma from bacteria, fungi, and parasitic organisms. Trends in both abscess microbiology and management of abscesses (infective collections) have changed over the past decade. There is a paucity of published data regarding the clinicopathological features of liver abscesses in sub-Saharan Africa and other low-income and middle-income countries.
View Article and Find Full Text PDFWant AI Summaries of new PubMed Abstracts delivered to your In-box?
Enter search terms and have AI summaries delivered each week - change queries or unsubscribe any time!