Results 11 to 20 of about 650 (124)

Leukotoxin A Production and Release by JP2 and Non-JP2 Genotype Aggregatibacter actinomycetemcomitans in Relation to Culture Conditions [PDF]

Pathogens
Aggressive forms of periodontitis, especially in young patients, are often associated with an increased proportion of the Gram-negative bacterium Aggregatibacter actinomycetemcomitans of the microbiota of the affected periodontal sites.
Sotirios Kalfas, Zahra Khayyat Pour, Rolf Claesson, Anders Johansson   +3 more
doaj   +6 more sources

Prevalence of JP2 and Non-JP2 Genotypes of Aggregatibacter actinomycetemcomitans and Oral Hygiene Practice of Kenyan Adolescents in Maasai Mara [PDF]

Pathogens, 2021
Aggregatibacter actinomycetemcomitans is implicated in the etiology of periodontitis that affects adolescents. The monitoring and mapping of the geographic dissemination pattern of JP2 and non-JP2 genotypes of A. actinomycetemcomitans are of interest. In
Dorte Haubek, Tonnie Mulli, Arthur Kemoli, Mark Lindholm, Hans Gjørup, Marie-Louise Milvang Nørregaard, Anders Johansson   +6 more
doaj   +8 more sources

High salivary levels of JP2 genotype of Aggregatibacter actinomycetemcomitans is associated with clinical attachment loss in Moroccan adolescents [PDF]

Clinical and Experimental Dental Research, 2019
It has previously been shown that the presence of Aggregatibacter actinomycetemcomitans in subgingival plaque is significantly associated with increased risk for clinical attachment loss. The highly leukotoxic JP2 genotype of this bacterium is frequently
Oum Keltoum Ennibi, Rolf Claesson, Sanae Akkaoui   +2 more
exaly   +8 more sources

Honey Compounds Exhibit Antibacterial Effects Against Aggregatibacter actinomycetemcomitans JP2 [PDF]

Antibiotics
Background: Aggregatibacter actinomycetemcomitans JP2 genotype is a virulent pathogen linked to severe periodontitis and systemic diseases. Honey and royal jelly (RJ) have demonstrated bioactive properties against this microorganism.
Abdelhadi Hbibi, Amine Ezzahi, Ferhat Ozturk, Niels A. J. Cremers, Jalal Kasouati, Ahmed Moussaif, Anders Johansson, Mimoun Zouhdi, Babacar Touré, Itto Maroui   +9 more
doaj   +4 more sources

Multilocus Sequence Typing of Aggregatibacter actinomycetemcomitans Competently Depicts the Population Structure of the Species [PDF]

Microbiology Spectrum, 2021
We developed a multilocus sequence typing scheme (MLST) for Aggregatibacter actinomycetemcomitans based on seven housekeeping genes, adk, atpG, frdB, mdh, pgi, recA, and zwf. A total of 188 strains of seven serotypes were separated into 57 sequence types.
Signe Nedergaard, Anne B. Jensen, Dorte Haubek, Niels Nørskov-Lauritsen   +3 more
doaj   +4 more sources

Microbial Markers for Diagnosis and Risk Assessment for Periodontal Diseases: A Systematic Literature Search and Narrative Synthesis. [PDF]

J Clin Periodontol
ABSTRACT Aim To examine the accuracy of microbiological biomarkers in diagnosing periodontal diseases, specifically addressing three focus questions: (FQ1) distinguishing health from disease; (FQ2) predicting disease progression; and (FQ3) assessing treatment outcomes.
Bostanci N, Manoil D, Van Holm W, Belibasakis GN, Teughels W.   +4 more
europepmc   +3 more sources

Usefulness of real time PCR for the differentiation and quantification of 652 and JP2 Actinobacillus actinomycetemcomitans genotypes in dental plaque and saliva [PDF]

BMC Infectious Diseases, 2006
Background The aim of our study is to describe a fast molecular method, able to distinguish and quantize the two different genotypes (652 and JP2) of an important periodontal pathogen: Actinobacillus actinomycetemcomitans.
Piras Vincenzo, Baldoni Marco, Cotti Marina, Isola Daniela, Ciusa Maria, Marini Mario, Orrù Germano, Pisano Elisabetta, Montaldo Caterina   +8 more
doaj   +5 more sources

Association of Filifactor alocis and its RTX toxin gene ftxA with periodontal attachment loss, and in synergy with Aggregatibacter actinomycetemcomitans [PDF]

Frontiers in Cellular and Infection Microbiology
The Gram-positive bacterium, Filifactor alocis is an oral pathogen, and approximately 50% of known strains encode a recently identified repeat-in-toxin (RTX) protein, FtxA. By assessing a longitudinal Ghanaian study population of adolescents (10-19 years
Zeinab Razooqi, Ingeborg Tjellström, Carola Höglund Åberg, Francis Kwamin, Rolf Claesson, Dorte Haubek, Anders Johansson, Jan Oscarsson   +7 more
doaj   +3 more sources

Leukotoxic activity of Aggregatibacter actinomycetemcomitans and periodontal attachment loss. [PDF]

PLoS ONE, 2014
Aggregatibacter actinomycetemcomitans is a Gram-negative periodontitis-associated bacterium that expresses a toxin that selectively affects leukocytes.
Carola Höglund Åberg, Dorte Haubek, Francis Kwamin, Anders Johansson, Rolf Claesson   +4 more
doaj   +2 more sources

Periodontitis and Periodontal Conditions in Systemically Healthy Children and Adolescents. [PDF]

J Clin Periodontol
ABSTRACT Objective To answer the PICoS question ‘in systemically healthy children and adolescents (Population), what are the main features of periodontitis, necrotising periodontal diseases (NPD) and other periodontal conditions (periodontal abscesses, endo‐periodontal lesions, traumatic occlusal forces, prosthesis‐ and tooth‐related factors ...
Eshkol-Yogev I, Ambrosio N, Somani C, Figuero E, Shapira L, Davies J.   +5 more
europepmc   +2 more sources