Results 31 to 40 of about 2,921 (175)
Aggregatibacter Actinomycetemcomitans – A Tooth Killer? [PDF]
Journal of Clinical and Diagnostic Research, 2014 Strong evidence is available on Aggregatibacter actinomycetemcomitans (A.a) on its role as the causative agent of localised juvenile periodontitis (LJP), a disease characterised by rapid destruction of the tooth-supporting tissues.
Manoj Raja, Fajar Ummer, C.P Dhivakar
doaj +1 more source
Journal of Oral Microbiology, 2015 The expression of the leukotoxin of Aggregatibacter actinomycetemcomitans is regulated by the leukotoxin promoter. A 530-bp deletion or an 886-bp insertion sequence (IS) element in this region has earlier been described in highly leukotoxic isolates ...
Rolf Claesson +4 more
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Comparative protection of small ruminants against Mannheimia haemolytica infection by inactivated bacterin and toxoid vaccines [PDF]
Veterinary World, 2023 Background and Aim: Mannheimia haemolytica causes respiratory infection and mortality in sheep and goats, similar to the effects in cattle, which causes major economic damage.
Dounia Bkiri +4 more
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Scientific Reports, 2017 Aggregatibacter actinomycetemcomitans leukotoxin (LtxA) is a major virulence factor that kills leukocytes permitting it’s escape from host immune surveillance. A. actinomycetemcomitans strains can produce high or low levels of toxin.
Vandana Sampathkumar +3 more
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Journal of Indian Society of Periodontology, 2018 Context: Aggregatibacter actinomycetemcomitans (A.a) serotypes may add some important information of the pathogenetic background of periodontal infections. A.a leukotoxin is an important virulence factor in the pathogenesis of periodontal disease and its
Sudhakar Shuntikudege Suprith +3 more
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The role of Aggregatibacter actinomycetemcomitans and its leukotoxin in periodontitis
Journal of Oral Microbiology, 2017 Aggregatibacter actinomycetemcomitans is a Gram-negative periodontitis-associated bacterium that expresses a toxin that selectively affects leukocytes. Leukotoxin is encoded by an operon belonging to the core genome of this bacterial species.
Anders Johansson +4 more
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BMC Research Notes, 2012 Background Aggregatibacter actinomycetemcomitans produces a leukotoxin that activates a pro-inflammatory death of human monocytes/macrophages. A specific clone of this bacterium (JP2) has a 530-base pair deletion in the leukotoxin promoter gene and ...
Kwamin Francis +3 more
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Molecular and phylogenetic study of Staphylococcus aureus isolated from human and cattle of Al-Qadisiyah Governorate, Iraq [PDF]
Veterinary World, 2019 Aim: This study was designed to detect the prevalence of Staphylococcus aureus, to estimate the frequency of methicillin resistance gene (mecA), femA (specific gene for S.
Ahmed Jasim Neamah +4 more
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BMC Infectious Diseases, 2018 Background The bicomponent leukotoxins and the pyrogenic toxin superantigens (PTSAgs) are important virulence factors of Staphylococcus aureus. It is necessary to survey the prevalence and expression of these toxin-encoding genes for understanding the ...
Chunyan He +8 more
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Pathogens, 2019 Aggregatibacter actinomycetemcomitans is a Gram-negative bacterium that is part of the oral microbiota. The aggregative nature of this pathogen or pathobiont is crucial to its involvement in human disease.
Niels Nørskov-Lauritsen +4 more
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