geoscience.net logo
+ Resolve Article
+ Follow Us
Follow on FacebookFollow on Facebook
Follow on TwitterFollow on Twitter

+ Translate
+ Subscribe to Site Feed
GeoScience Most Shared ContentMost Shared Content

Actinobacillus actinomycetemcomitans in periodontal disease


, : Actinobacillus actinomycetemcomitans in periodontal disease. Microbiology & Immunology 30(7): 629-644

Actinobacillus (Haemophilus) actinomycetemcomitans is a facultatively anaerobic, gram-negative coccobacillus which is a possible etiological agent in juvenile periodontitis (JP). In this study, bacterial flora, especially the occurrence of A. actinomycetemcomitans, in the periodontal pockets of one juvenile with gingivitis (G), one JP patients, five rapidly progressive periodontitis (RP) patients and one adult periodontitis (AP) patient, and one adult with healthy periodontium was investigated using a blood agar medium and a selective medium for A. actinomycetemcomitans. Eight hundred and sixty-five bacteria were isolated from the periodontal pockets, examined for their gram-strain, cell morphologies, relations to O2 and CO2 and calatase reaction, and divided into 21 groups on the basis of these characters. Among the isolates, 604 isolates were further characterized biochemically and identified. A. actinomycetemcomitans was found as 0.2% of the flora of a site in the JP patient, as 9% of the flora of a site in the G patient, and as 19% and 1%, respectively, of the flora of a site in the two RP patients. However, the organism was not detected in another lesion site of the JP patient. In our JP and RP patients, Fusobacterium, Wolinella, Streptococcus, and obligately anaerobic, gram-positive cocci were frequently found at high levels. The bacterial flora of the G and AP patients were more heterogenous and included Bacteriodes at relatively high proportions. These results indicate that A. actinomycetemcomitans is not always associated with JP but occurred in some patients with RP and G.

US$29.90


Other references

Kjaergaard, J.; Peng, L.; Cohen, P.A.; Drazba, J.A.; Weinberg, A.D.; Shu, S., 2001: Augmentation versus inhibition: effects of conjunctional OX-40 receptor monoclonal antibody and IL-2 treatment on adoptive immunotherapy of advanced tumor. Therapeutic efficacy of adoptive immunotherapy of malignancies is proportional to the number of effector T cells transferred. Traditionally, exogenous IL-2 treatment has been used to promote the survival and function of transferred cells. Recently...

Bluekens, A.M.J.; Karssemeijer, N.; Beijerinck, D.; Deurenberg, J.J.M.; van Engen, R.E.; Broeders, M.J.M.; den Heeten, G.J., 2011: Consequences of digital mammography in population-based breast cancer screening: initial changes and long-term impact on referral rates. To investigate the referral pattern after the transition to full-field digital mammography (FFDM) in a population-based breast cancer screening programme. Preceding the nationwide digitalisation of the Dutch screening programme, an FFDM feasibilit...

Henning, S.J.; Dickmann, D.I., 1996: Vegetative responses to prescribed burning in a mature red pine stand. We investigated the effects of low-intensity, prescribed spring surface fires at varying intervals in a widely spaced, mature red pine plantation growing on a high quality sandy loam soil in northern Lower Michigan. Measurements of overstory chara...

Ryymin, T., 2009: Tuberculosis prevention in Finnmark 1900-1960. The campaign against tuberculosis in Finnmark in the first half of the 20th century was defined as a national responsibility. The Norwegian state and voluntary associations, the Norwegian Association against Tuberculosis prominent among them, init...

Geraci, A.A.; Papp, S.B.; Kitching, J., 2010: Short-range force detection using optically cooled levitated microspheres. We propose an experiment using optically trapped and cooled dielectric micro-spheres for the detection of short-range forces. The center-of-mass motion of a microsphere trapped in vacuum can experience extremely low dissipation and quality factors...

Noteboom W.D.; Knurr K.E.; Kim H.S.; Richmond W.G.; Martin A.P.; Vorbeck M.L., 1984: An elisa enzyme linked immunosorbent assay for screening hybridoma cultures for monoclonal antibodies against a detergent solubilized integral membrane protein. A method is described for the binding of a detergent solubilized integral membrane protein to polystyrene immunoassay plates. Addition of Bouin's fluid, a histochemical fixative, to wells of plates containing the detergent solubilized antigen...

Coudray, C.; Talla, M.; Martin, S.; Fatôme, M.; Favier, A., 1995: High-performance liquid chromatography-electrochemical determination of salicylate hydroxylation products as an in vivo marker of oxidative stress. The in vivo measurement of highly reactive free radicals, such as hydroxyl radical (.OH), in humans is very difficult if not impossible. Specific markers are currently under investigation (amino acid hydroxylatin, protein, DNA adducts, and aromati...

J.R.H.ughton; G.R.we; L.J.F.ewer; E.V.n Kleef; G.C.ryssochoidis; O.K.hagia; S.K.rzen-Bohr; J.L.ssen; U.P.enning; A.S.rada, 2008: The quality of food risk management in Europe: perspectives and priorities. Food Policy 33(1): 13-26

Wiesler; Zabel, 1987: Two-dimensional ferromagnetic correlations in CoCl2-intercalated graphite. Physical Review. B, Condensed Matter 36(13): 7303-7306

Ferber, R.; Pohl, M.B., 2011: Changes in joint coupling and variability during walking following tibialis posterior muscle fatigue. The tibialis posterior muscle is believed to play a key role in controlling foot mechanics during the stance phase of gait. However, an experiment involving localised tibialis posterior muscle fatigue, and analysis of discrete rearfoot and forefoo...