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A pediatric case of Streptococcal pyogenes empyema due to the M1 genotype.
Pediatr Int
January 2025
Department of Pediatrics, Yamanashi Prefectural Central Hospital, Yamanashi, Japan.
Toxic shock syndrome secondary to Group A infection: A case report.
Case Rep Womens Health
March 2025
Department of Obstetrics and Gynaecology, Campbelltown Hospital, NSW, Sydney, Australia.
Toxic shock syndrome secondary to Group A infection is a rare but serious cause of women's morbidity and mortality which can easily be misdiagnosed. A 37-year-old woman presented to the emergency department in a state of shock after a two-day history of abdominal pain, fever, diarrhoea and green vaginal discharge. Following extensive investigations, she was proved to have septic shock secondary to Group A Despite receiving intravenous antibiotics, she required explorative laparotomy, which proceeded to subtotal hysterectomy and bilateral salpingectomy.
View Article and Find Full Text PDFAntimicrobial proteins from oyster hemolymph improve the efficacy of conventional antibiotics.
PLoS One
January 2025
National Marine Science Centre, Southern Cross University, Coffs Harbour, NSW, Australia.
Discovering new antibiotics and increasing the efficacy of existing antibiotics are priorities to address antimicrobial resistance. Antimicrobial proteins and peptides (AMPPs) are considered among the most promising antibiotic alternatives and complementary therapies. Here, we build upon previous work investigating the antibacterial activity of a semi-purified hemolymph protein extract (HPE) of the Australian oyster Saccostrea glomerata.
View Article and Find Full Text PDFSLO co-opts host cell glycosphingolipids to access cholesterol-rich lipid rafts for enhanced pore formation and cytotoxicity.
mBio
January 2025
Division of Infectious Diseases, Boston Children's Hospital, Boston, Massachusetts, USA.
Unlabelled: Streptolysin O (SLO) is a virulence determinant of group A (), the agent of streptococcal sore throat and severe invasive infections. SLO is a member of a family of bacterial pore-forming toxins known as cholesterol-dependent cytolysins, which require cell membrane cholesterol for pore formation. While cholesterol is essential for cytolytic activity, accumulating data suggest that cell surface glycans may also participate in the binding of SLO and other cholesterol-dependent cytolysins to host cells.
View Article and Find Full Text PDFArtificial cell-free system for the sustainable production of acetoin from bioethanol.
Bioresour Technol
January 2025
Department of Chemical, Biological and Environmental Engineering, Engineering School, Universitat Autònoma de Barcelona, 08193 Barcelona, Spain. Electronic address:
The present work introduces and validates an artificial cell free system for the synthesis of acetoin from ethanol, representing a greener alternative to conventional chemical synthesis. The one pot multi-enzymatic system, which employs pyruvate decarboxylase from Zymobacter palmae (ZpPDC), alcohol dehydrogenase from Saccharomyces cerevisiae (ScADH), and NADH oxidase from Streptococcus pyogenes (SpNOX), achieves nearly 100 % substrate conversion and reaction yield within 6 h under optimal conditions (pH 7.5, enzyme activities: ZpPDC 100 U·mL, ScADH 50 U·mL, SpNOX 127 U·mL, and 1 mM NAD).
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