Actinobacillus

(redirected from Actinobacillus actinomycetemcomitans)
Also found in: Dictionary, Medical.

Actinobacillus

A genus of gram-negative, immotile and nonspore-forming, oval to rod-shaped, often pleomorphic bacteria which occur as parasites or pathogens in mammals (including humans), birds, and reptiles. They are facultatively aerobic, capable of fermenting carbohydrates (without production of gas) and of reducing nitrates. The genomic DNA contains between 40 and 47 mol % guanine plus cytosine. The actinobacillus group shares many biological properties with the genus Pasteurella. See Pasteurella

Actinobacillus (Pasteurella) ureae and A. hominis occur in the respiratory tract of healthy humans and may be involved in the pathogenesis of sinusitis, bronchopneumonia, pleural empyema, and meningitis. Actinobacillus actinomycetemcomitans occurs in the human oral microflora, and together with anaerobic or capnophilic organisms may cause endocarditis and suppurative lesions in the upper alimentary tract. Actinobacilli are susceptible to most antibiotics of the β-lactam family, aminoglycosides, tetracyclines, chloramphenicol, and many other antibacterial chemotherapeutics. See Antibiotic, Medical bacteriology

Actinobacillus

[‚ak·tə·nō·bə′sil·əs]
(microbiology)
A species of gram-negative, oval, spherical, or rod-shaped bacteria that are of uncertain affiliation; coccal and bacillary cells are often interspersed, giving a “Morse code” form; species are pathogens of animals, occasionally of humans.
References in periodicals archive ?
Detachment of Actinobacillus Actinomycetemcomitans Biofilm Cells by an Endogenous Beta--Hexosaminidase Activity.
aureus olgularin %90'indan sorumlu iken, bu siklik mantar ve HACEK grubu (Haemophilus parainfluenzae, Haemophilus aphrophilus, Haemophilus paraphrophilus, Haemophilus influenzae, Actinobacillus actinomycetemcomitans, Cardiobacterium hominis, Eikenella corrodens, Kingella kingae ve Kingella denithficans) ile meydana gelen olgulardaki artisla birlikte %50-60'a dusmustur.
Quantitative real-time PCR using TaqMan and SYBR green for actinobacillus actinomycetemcomitans, porphyromonas gingivalis, Prevotella intermedia, tetQ gene and total bacteria.
Actinobacillus actinomycetemcomitans Y4 capsular polysaccharide induces IL-1[alpha] mRNA expression through the JNK pathway in differentiated THP-1 ceils [Electronic version].
Phenotypic variation in Actinobacillus actinomycetemcomitans during laboratory growth; implication for virulence.
Results of PCR performed on serum for Actinobacillus actinomycetemcomitans were also negative.
difficult to kill periopathogens, Actinobacillus actinomycetemcomitans (Aa).
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.
Immunodominant region of Actinobacillus actinomycetemcomitans 40-kilodalton heat shock protein in patients with rheumatoid arthritis.
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.

Full browser ?