Actinobacillus actinomycetemcomitans

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Ac·ti·no·ba·cil·lus ac·ti·no·my·ce·tem·co·m'i·tans

a species of doubtful taxonomic position; frequently associated with some forms of human periodontal disease as well as subacute and chronic endocarditis; occurs with actinomycetes in actinomycotic lesions.
Farlex Partner Medical Dictionary © Farlex 2012

Actinobacillus Actinomycetemcomitans

A gram-negative facultative coccobacillus, which is most often linked to periodontal disease, and may cause soft tissue abscesses, endocarditis, pneumonia.
Segen's Medical Dictionary. © 2012 Farlex, Inc. All rights reserved.

Ac·ti·no·ba·cil·lus ac·ti·no·my·ce·tem·com·i·tans

(akti-nō-bă-silŭs akti-nō-mī-sĕ-tem-komi-tanz)
Species of doubtful taxonomic position; frequently associated with some forms of human periodontal disease as well as subacute and chronic endocarditis.
Medical Dictionary for the Dental Professions © Farlex 2012
References in periodicals archive ?
Association between infection of different strains of Porphyromonas gingivalis and Actinobacillus actinomycetemcomitans in subgingival plaque and clinical parameters in chronic periodontitis / J Zhejiang Univ Sci B., 8(2): 121-131 121.
Results of PCR performed on serum for Actinobacillus actinomycetemcomitans were also negative.
Staphylococcus, Enterococcus species, Enterobacteriaceae, Pseudomonas species, unusual gram negative bacteria, and the HACEK organisms (Haemophilus aphorphilus, Haemophilus paraphrophilius, Actinobacillus actinomycetemcomitans, Cardioacterium hominis, Eikenella corrodens, and Kingella kingae) have been shown to be present in endocarditis and may play a role in vascular inflammation as well.(28)
[1995] found normalized PMN function after successful conservative periodontal treatment of a PLS patient, and Preus [1988] discovered a normalized monocyte function once the periodontitis and the presence of Actinobacillus actinomycetemcomitans (A.a) was eradicated.
HACEK refers to gram-negative bacilli: Haemophilus species (H parainfluenzae, H aphrophilus, and H paraphrophilus), Actinobacillus actinomycetemcomitans, Cardiobacterium hominis Eikenella corrodens and Kingella species.
Microbiological and clinical results of metronidazome plus amoxicillin therapy in Actinobacillus actinomycetemcomitans associated periodontitis.
It is most commonly associated with a group of gram-negative bacilli collectively known as HACEK (for Hemophilus parainfluenzae, H aphrophilus, Hemophilus paraphrophilus, Actinobacillus actinomycetemcomitans, Cardiobacterium hominis, Eikenella corrodens, and Kingella kingae).

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