introduction: actinomycosis is a systemic chronic bacterial infection caused by actinomyces israelii, an anaerobic organism normally resident in the human mouth. however, the actinomycosis of the larynx is very rare, and only about 15 cases have been reported in the literature so far. most of the cases reported occurred in patients who had previously undergone radiotherapy for laryngeal cancer....

Local and systemic administrations of tetracycline have been used in human periodontal treatment for conditions including juvenile periodontitis and rapidly progressive periodontitis, although microbiological effects of the treatment have not been clear. The effect of systemic oral administration of tetracycline on subgingival bacteria in experimental periodontal disease in hamsters as an anima...

Each of five monoclonal antibodies (mAbs) prepared against the type 1 fimbriae of Actinomyces viscosus T14V reacted with a 54 kDa cloned protein previously identified as a fimbrial subunit. This purified protein completely inhibited the reaction of a specific anti-type-1-fimbria rabbit antibody with A. viscosus whole cells. Maximum values for the number of antibody molecules bound per bacterial...