Results 91 to 100 of about 2,101,930 (408)

Emergent Invasive Group A Streptococcus dysgalactiae subsp. equisimilis, United States, 2015–2018

Emerging Infectious Diseases, 2019
The term group A Streptococcus is considered synonymous for the species Streptococcus pyogenes. We describe an emergent invasive S. dysgalactiae subspecies equisimilis lineage that obtained the group A antigen through a single ancestral recombination ...
S. Chochua, J. Rivers, S. Mathis, Zhongya Li, Srinivasan Velusamy, L. McGee, C. V. Van Beneden, Yuan Li, B. Metcalf, B. Beall   +9 more
semanticscholar   +1 more source

Increase in invasive group A streptococcal (Streptococcus pyogenes) infections (iGAS) in young children in the Netherlands, 2022

Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin, 2023
In 2022, a sevenfold increase in the number of notifiable invasive Streptococcus pyogenes (iGAS) infections among children aged 0–5 years was observed in the Netherlands compared with pre-COVID-19 pandemic years.
B. de Gier, Niek Marchal, Ilse de Beer-Schuurman, M. T. te Wierik, M. Hooiveld, H. D. de Melker, N. V. van Sorge   +6 more
semanticscholar   +1 more source

Conjugative transfer frequencies of mef(A)-containing Tn1207.3 to macrolide-susceptible Streptococcus pyogenes belonging to different emm types [PDF]

, 2014
The aim of this study was to examine the gene transfer potential of mef(A)-containing Tn120.3 to macrolide-susceptible Streptococcus pyogenes belonging to different emm types.
Hadjirin, N. F., Harrison, E. M., Holmes, M. A., Paterson, G. K.   +3 more
core   +1 more source

The Immobilization of Hyaluronic Acid in 3D Hydrogel Scaffolds Modulates Macrophage Polarization

Advanced Biology, EarlyView.
This study explores the use of collagen‐hyaluronic acid (HA) hydrogels for the 3D culture of macrophages, providing a useful tool for modelling macrophage behavior in tissues and diseases. It highlights how hydrogel composition, mechanical properties, and preparation methods influence macrophage behavior, revealing for the first time that HA's ...
Tiah CL Oates, Jasmin Boyd, Louise Dolan, C de Kergariou, Jingwen Zhu, Ash Toye, Adam W Perriman, Asme Boussahel   +7 more
wiley   +1 more source

Group A Streptococcus Primary Peritonitis in Children, New Zealand

Emerging Infectious Diseases, 2023
Group A Streptococcus (GAS) primary peritonitis is a rare cause of pediatric acute abdomen (sudden onset of severe abdominal pain); only 26 pediatric cases have been reported in the English language literature since 1980.
Amanda Taylor, Brodie M. Elliott, John Atkinson, Sally Roberts, Lesley Voss, Emma J. Best, Rachel Webb   +6 more
doaj   +1 more source

Pathogenesis of Hypervirulent Group A Streptococcus [PDF]

Japan Journal of Medicine, 2018
Group A Streptococcus (GAS) causes common pharyngitis and skin infections and occasional severe invasive infections. This review describes the recent progress on the pathogenesis of hypervirulent GAS. CovRS mutations are frequent among invasive GAS isolates and lead to hypervirulence. GAS CovRS mutants can be selected in vivo by neutrophils.
Mengyao Liu, Benfang Lei
openaire   +2 more sources

Detection of epidemic scarlet fever group A Streptococcus in Australia.

Clinical Infectious Diseases, 2019
Sentinel hospital surveillance was instituted in Australia to detect the presence of pandemic group A Streptococcus strains causing scarlet fever. Genomic and phylogenetic analyses indicated the presence of an Australian GAS emm12 scarlet fever isolate ...
M. Walker, Stephan Brouwer, B. Forde, Kate A Worthing, Liam McIntyre, L. Sundac, S. Maloney, Leah W. Roberts, T. C. Barnett, Johanna Richter, A. J. Cork, A. Irwin, Yuan-hai You, Jianzhong Zhang, G. Dougan, K. Yuen, V. Nizet, S. Beatson, K. Grimwood, M. Davies   +19 more
semanticscholar   +1 more source

Graphene–Catechol Dental Sealant: Antibacterial and Mechanical Evaluation

Advanced Engineering Materials, EarlyView.
This study presents dental sealants made with graphene and L‐DOPA‐modified graphene. L‐DOPA enhances graphene dispersion, improving sealant properties. The material shows antibacterial activity against S. mutans and L. casei, along with high strength and elasticity.
Renata Pereira, Flávio H. B. Aguiar, Rodrigo B. E. Lins, Maria C. A. J. Mainairdi, Bruna G. Silva, Marcela A. Ferretti, Klaus Rischka   +6 more
wiley   +1 more source

A Vascularized Microphysiological System Reproducing Endochondral Ossification in Vitro to Study Ewing Sarcoma Proliferation and Migration

Advanced Functional Materials, EarlyView.
A biofabricated 3D in vitro model recapitulating endochondral ossification (ECO) is described, mimicking the steps from condensation to chondrogenesis and hypertrophy, culminating with vascularization of the hypertrophic construct. As a model proof of concept application, Ewing Sarcoma cells are seeded in the model, showing modifications in their ...
Maria Vittoria Colombo, Chiara Arrigoni, Tobias Faehling, Antonietta Verrillo, Viviana Secci, Thomas G. P. Grünewald, Giuseppe Talò, Alexandra Kummer, Jorge Gonzalez, Vincenzo De Rosa, Christian Candrian, Andrea Barbero, Florencia Cidre‐Aranaz, Matteo Moretti   +13 more
wiley   +1 more source

Nanofillers Reinforcing Biopolymer Composites for Sustainable Food Packaging Applications: A State‐of‐the‐Art Review

Advanced Functional Materials, EarlyView.
Biopolymers are sustainable, biodegradable alternatives to petroleum‐based plastics for food packaging. Its adoption is often limited by poor mechanical strength, barrier properties, and improved thermal stability through the incorporation of nanofillers.
Himakshi Baishya, Joydeep Dutta, Santosh Kumar   +2 more
wiley   +1 more source