Results 41 to 50 of about 10,497 (180)

Exotoxins ofStaphylococcus aureus [PDF]

open access: yesClinical Microbiology Reviews, 2000
SUMMARYThis article reviews the literature regarding the structure and function of two types of exotoxins expressed by Staphylococcus aureus, pyrogenic toxin superantigens (PTSAgs) and hemolysins. The molecular basis of PTSAg toxicity is presented in the context of two diseases known to be caused by these exotoxins: toxic shock syndrome and ...
M M, Dinges, P M, Orwin, P M, Schlievert
openaire   +2 more sources

Association Between the Root Canal Microbiome and Apical Lesion Size: An Observational Shotgun Metagenomic Study

open access: yesInternational Endodontic Journal, EarlyView.
ABSTRACT Aim The aim was to characterize the taxonomic and functional composition of the microbiome involved in primary endodontic infections and to evaluate their association with the periapical lesion size using shotgun metagenomic sequencing. Methodology Samples from primary root canal infections diagnosed with apical periodontitis were analysed ...
Virginia Pérez‐Carrasco   +5 more
wiley   +1 more source

Novel anti-virulence compounds disrupt exotoxin expression in MRSA

open access: yesMicrobiology Spectrum
Hemolysins are lytic exotoxins expressed in most strains of S. aureus, but hemolytic activity varies between strains. We have previously reported several novel anti-virulence compounds that disrupt the S.
Halie Balogh   +7 more
doaj   +1 more source

Localized Periodontitis in Young Individuals: Aggregatibacter JP2 Clone, Immunological Dysfunctions and Other Stories

open access: yesJournal of Periodontal Research, EarlyView.
This review describes the features of grade C molar‐incisor pattern periodontitis and discusses the role of A. actinomycetemcomitans in its pathogenesis and why molars and incisors are preferably affected. Possible future studies on this aggressive disease in primary and permanent dentition and emerging omics techniques for diagnosis and management are
Luigi Nibali   +3 more
wiley   +1 more source

A Multiplex Assay for Detection of Staphylococcal and Streptococcal Exotoxins. [PDF]

open access: yesPLoS ONE, 2015
Staphylococcal and streptococcal exotoxins, also known as superantigens, mediate a range of diseases including toxic shock syndrome, and they exacerbate skin, pulmonary and systemic infections caused by these organisms.
Preeti Sharma   +5 more
doaj   +1 more source

DBETH: A Database of Bacterial Exotoxins for Human [PDF]

open access: yesNucleic Acids Research, 2011
Pathogenic bacteria produce protein toxins to survive in the hostile environments defined by the host's defense systems and immune response. Recent progresses in high-throughput genome sequencing and structure determination techniques have contributed to a better understanding of mechanisms of action of the bacterial toxins at the cellular and ...
Abhijit Chakraborty 0003   +4 more
openaire   +2 more sources

Periodontitis and Diabetes: Mechanistic Evidence of a Circular Relationship

open access: yesJournal of Periodontal Research, EarlyView.
This narrative review aimed to explore the underlying mechanisms that connect periodontitis to diabetes (and vice versa) and that influence disease susceptibility, progression and response to treatment. ABSTRACT The circular relationship between periodontitis and diabetes mellitus is one of the most established oral‐systemic links.
Philip M. Preshaw   +4 more
wiley   +1 more source

Bacterial pyrogenic exotoxins as superantigens [PDF]

open access: yesClinical Microbiology Reviews, 1995
The recent discovery of the mode of interaction between a group of microbial proteins known as superantigens and the immune system has opened a wide area of investigation into the possible role of these molecules in human diseases. Superantigens produced by certain viruses and bacteria, including Mycoplasma species, are either secreted or membrane ...
openaire   +2 more sources

Requirement of Simultaneous Assessment of Crystal- and Supernatant-Related Entomotoxic Activities of Bacillus thuringiensis Strains for Biocontrol-Product Development

open access: yesToxins, 2014
Bioinsecticides with lower concentrations of endospores/crystals and without loss of efficiency are economically advantageous for pest biocontrol. In addition to Cry proteins, other Bacillus thuringiensis (Bt) toxins in culture supernatants (SN) have ...
Ronaldo Costa Argôlo-Filho   +6 more
doaj   +1 more source

Plant‐Derived Nanoparticles (PDNPs) in Food Safety and Preservation: Pros and Cons

open access: yeseFood, Volume 7, Issue 4, August 2026.
Plant‐derived nanoparticles (PDNPs) synthesized via green methods demonstrate antimicrobial, antioxidant, barrier, eco‐friendly, and cost‐effective properties, while facing challenges in large‐scale production, synthesis standardization, and absence of specific food safety regulations. ABSTRACT Ensuring food safety and extending shelf life across fresh
Md. Shakil Ahmed   +2 more
wiley   +1 more source

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