Results 81 to 90 of about 85,647 (300)

Polysaccharidases of Group A Streptococci [PDF]

Journal of General Microbiology, 1951
SUMMARY: Proteinase produced by Group A streptococci was associated with a decrease in hyaluronidase production which was not related to any other known environmental condition. The concentration of proteinase which was correlated with decreased hyaluronidase production was constant for a given strain.
openaire   +2 more sources

A RAPD-PCR genotyping assay which correlates with serotypes of group B streptococci

, 2002
Aims: The purpose of this study was to determine if DNA polymorphisms generated by RAPD-PCR could be used to characterize Group B streptococci (GBS) for epidemiological purposes.
Kotiw, M., Zhang, G. W., Daggard, G.
core   +1 more source

Cysteine Redox State Governs the Condensation Pathway of Hendra Virus W Protein and Differentially Impacts Type I IFN and NF‐κB Signaling

Advanced Science, EarlyView.
The cysteine redox state of the Hendra virus W (WHeV) protein controls assembly into fibrils or amorphous aggregates, with residues 2–29 required for fibrillation. In cells, WHeV forms different types of nuclear condensates. Impaired ability to form redox‐sensitive, non‐filamentous condensates reduces WHeV inhibition of the NF‐κB pathway, while it ...
Frank Gondelaud, Alexandre Lalande, Giulia Pesce, Auriane Bouchet, Carole Meunier, Christophe Bignon, Denis Ptchelkine, Yu Gu, Eva Ogire, Pierre‐Yves Lozach, Denis Gerlier, Cyrille Mathieu, Sonia Longhi   +12 more
wiley   +1 more source

RNAi in the Rhizarian Phytopathogen Plasmodiophora brassicae: The Causal Agent of Clubroot Disease in Cruciferous Crops

Advanced Science, EarlyView.
This study uncovers an unusual RNAi pathway in the rhizarian pathogen Plasmodiophora brassicae. In the absence of Dicer, a Drosha‐like RNase III protein supports the biogenesis of predominant 21‐nt small RNAs, and two Argonaute proteins mediate small RNA‐guided silencing.
Xiong Zhang, Yupo Wu, Jiachang Hou, Lixia Gao, Longqi Pan, Cuicui Shen, Chuanji Zhao, Feng Gao, Yi Zhang, Li Ren, Xiaoping Fang, Xiaoling Dun, Shengyi Liu, Lijiang Liu   +13 more
wiley   +1 more source

Rapid Interventions to Limit Outbreak of Invasive Streptococcus pneumoniae in Correctional Facility, North Carolina, USA, 2024

Emerging Infectious Diseases
A Streptococcus pneumoniae serotype 4 outbreak in a North Carolina correctional facility resulted in 14 cases (8 suspected, 1 probable, and 5 confirmed).
Camden D. Gowler, Emma Doran, Niketa D. Williams, Justin P. Albertson, Ty Lautenschlager, Sopio Chochua, Ryan Gierke, Arthur Campbell, Miwako Kobayashi, Aaron Fleischauer, Erica Wilson   +10 more
doaj   +1 more source

Light‐Activated Ruthenium Nanoclusters Reprogram the Metabolic‐Quorum Sensing Axis for Precision Periodontitis Therapy

Advanced Science, EarlyView.
Under 660 nm visible light, Ru NCs efficiently photocatalyze nitrate‐to‐ammonium conversion and modulate oral nitrogen metabolism. They precisely perturb Veillonella parvula, block its key support to Porphyromonas gingivalis, and exert an “inhibiting without killing” antivirulence effect.
Jing Zhou, Xiaolin Sun, Chengyu Liu, Yujia Shi, Meiqi Li, Meng Bo, Jingjie Zhai, Chunyan Li, Zhennan Wu, Xue Bai, Lin Wang   +10 more
wiley   +1 more source

Microbiology and the role of streptococci in developing bacterial endocarditis [PDF]

, 2022
Introduction: Streptococcal infection is currently a major cause of morbidity and mortality amongst the world. This calls for a comprehensive study of the underlying factors predisposing to streptococcal infection as well as early diagnosis, as studies
Butcaru, Nicole
core   +1 more source

Genetics of Group A Streptococci

Microbiology Spectrum, 2019
ABSTRACT Streptococcus pyogenes (group A streptococcus) is remarkable in terms of the large number of diseases it can cause in humans and for the large number of streptococcal factors that have been identified as potential virulence determinants for these diseases.
Cho, Kyu Hong, Port, Gary C, Caparon, Michael   +2 more
openaire   +4 more sources

CRISPR-Cas Systems in Streptococci

, 2019
Streptococci are one of the most important and common constituents of the host\u27s microbiota and can colonize and live in the upper respiratory and urogenital tract of humans and animals.
Anqi Zhang, Jiamin Chen, Tao Gong, Xuedong Zhou, Boyu Tang, Meiling Jing, Miao Lu, Yuqing Li   +7 more
core   +1 more source

Probiotic‐Derived Vesicles Rectally Delivered via Thermo‐Gelling Copolymer Promote Mucosal Healing and Reduce Inflammation in Ulcerative Colitis

Advanced Science, EarlyView.
A thermo‐responsive rectal delivery platform integrating probiotic‐derived extracellular vesicles within a hyaluronic acid‐based copolymer enables localized and sustained therapy for ulcerative colitis. The formulation effectively suppresses inflammation, promotes macrophage polarization toward a regenerative phenotype, restores epithelial barrier ...
Ayushi Mairal, Ubaid Tariq, Shreya Mehrotra, Saravanan Matheshwaran, Jan Marsal, Ashok Kumar   +5 more
wiley   +1 more source