Results 11 to 20 of about 2,921 (175)

Therapeutic Applications of Aggregatibacter actinomycetemcomitans Leukotoxin [PDF]

open access: yesPathogens
Aggregatibacter actinomycetemcomitans is a Gram-negative oral bacterium that has been primarily studied for its role in causing periodontal disease. The bacterium has also been implicated in several systemic diseases such as endocarditis and soft tissue ...
Scott C. Kachlany, Brian A. Vega
doaj   +4 more sources

Diversity and evolution of leukotoxin operons in Staphylococcus aureus [PDF]

open access: yesmSystems
Staphylococcus aureus is a globally significant and opportunistic pathogen equipped with a diverse arsenal of virulence factors, including bi-component leukotoxins that play a central role in immune evasion and tissue damage. Despite extensive functional
Stephanie S. R. Souza   +2 more
doaj   +2 more sources

Chrysin and Luteolin from Moroccan Propolis to Prevent Aggressive Periodontitis Caused by Aggregatibacter actinomycetemcomitans Leukotoxin: A Computer-Aided Drug Design Approach [PDF]

open access: yesPharmaceuticals
Background: Aggregatibacter actinomycetemcomitans is a Gram-negative, facultative anaerobic, immobile oral bacterium responsible for the secretion of virulence factors, namely leukotoxin (LtxA), a large exotoxin of the RTX family that enables the ...
Doha EL Meskini   +6 more
doaj   +2 more sources

Leukotoxin of Bibersteinia trehalosi Contains a Unique Neutralizing Epitope, and a Non-Neutralizing Epitope Shared with Mannheimia haemolytica Leukotoxin

open access: yesToxins, 2018
Bibersteinia trehalosi and Mannheimia haemolytica, originally classified as Pasteurella haemolytica biotype T and biotype A, respectively, under Genus Pasteurella has now been placed under two different Genera, Bibersteinia and Mannheimia, based on DNA ...
Subramaniam Srikumaran   +2 more
exaly   +3 more sources

Evolution of the leukotoxin promoter in genus Mannheimia [PDF]

open access: yesBMC Evolutionary Biology, 2009
Background The Mannheimia species encompass a wide variety of bacterial lifestyles, including opportunistic pathogens and commensals of the ruminant respiratory tract, commensals of the ovine rumen, and pathogens of the ruminant integument.
Bisgaard Magne   +7 more
doaj   +6 more sources

Aggregatibacter actinomycetemcomitans Leukotoxin: A Powerful Tool with Capacity to Cause Imbalance in the Host Inflammatory Response

open access: yesToxins, 2011
Aggregatibacter actinomycetemcomitans has been described as a member of the indigenous oral microbiota of humans, and is involved in the pathology of periodontitis and various non-oral infections. This bacterium selectively kills human leukocytes through
Anders Johansson, Johansson Anders
exaly   +5 more sources

Immunogenicity and protective efficacy of seven candidate vaccines boosted with recombinant proteins, whole-cell bacterins of three serotypes of Mannheimia haemolytica, and an emulsion-type adjuvant [PDF]

open access: yesFrontiers in Veterinary Science
IntroductionMannheimia haemolytica is a primary cause of bovine respiratory disease, leading to substantial economic losses in the livestock industry.
Aslı Balevi   +4 more
doaj   +2 more sources

Periodontal microbiology and microbial etiology of periodontal diseases: Historical concepts and contemporary perspectives

open access: yesPeriodontology 2000, EarlyView., 2023
Abstract This narrative review summarizes the collective knowledge on periodontal microbiology, through a historical timeline that highlights the European contribution in the global field. The etiological concepts on periodontal disease culminate to the ecological plaque hypothesis and its dysbiosis‐centered interpretation.
Georgios N. Belibasakis   +5 more
wiley   +1 more source

Extraction and Titration of Leukotoxins from Fusobacterium necrophorum Isolates Recovered from Bovine Liver Abscesses in Sulaimaniyah Region

open access: yesThe Iraqi Journal of Veterinary Medicine, 2012
This study was conducted to extract and titrate the leukotoxin of Fusobacterium necrophorum isolates recovered from 75abscesses found in 24 livers of slaughtered cattle in Sulaimaniyah region.
Suha Ali Hussein
doaj   +3 more sources

The role of the host—Neutrophil biology

open access: yesPeriodontology 2000, EarlyView., 2023
Abstract Neutrophilic polymorphonuclear leukocytes (neutrophils) are myeloid cells packed with lysosomal granules (hence also called granulocytes) that contain a formidable antimicrobial arsenal. They are terminally differentiated cells that play a critical role in acute and chronic inflammation, as well as in the resolution of inflammation and wound ...
Iain L. C. Chapple   +4 more
wiley   +1 more source

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