Actinomycosis is a form of painful abscess in the gastrointestinal tract or in deep tissue caused by actinomyces species. They are one of the commensal bacteria in the oral cavity and gastrointestinal tract of humans but can opportunistically cause infection in immunosuppressive hosts through invasion of breached mucosa or necrotic tissue while mimicking malignancy, gastrointestinal tuberculosi...

BACKGROUND The purpose of this work was to investigate whether clinical cytology could be useful in the preoperative diagnosis of pelvic actinomycosis. METHODS This study involved the prospective collection of samples derived from the endometrium and the uterine cervix, and retrospective data analysis. Nine patients with clinically diagnosed pelvic actinomycosis were enrolled. The clinical an...

A lytic bacteriophage for Actinomyces viscosus T14V (the reference strain for actinomyces coaggregation group A) was isolated from raw sewage. This phage, designated BF307, also lysed the T14V-derived nonfimbriated mutant PK455-2 as well as A. viscosus MG-1 and T14AV but not the other serotype 2 or serotype 1 strains of this species that were tested or any of nine Actinomyces naeslundii isolate...

Actinomyces spp. exhibit type 1 fimbria-mediated adhesion to salivary acidic proline-rich proteins (PRPs) and statherin ligands. Actinomyces spp. with different animal and tissue origins belong to three major adhesion types as relates to ligand specificity and type 1 fimbria genes. (i) In preferential acidic-PRP binding, strains of Actinomyces naeslundii genospecies 1 and 2 from human and monke...

<p>Actinomyces are commensals of human oropharynx and actinomycosis is considered mainly as an endogenous infection that triggered by a mucosal lesion. Typically, the disease presents slowly progressive painless indurated mass evolving into multiple abscesses with draining sinus tracts sometimes expressing typical yellow exudate characteristic sulfur granules. The gold standard diagnosis ...

We report the main properties of "Actinomyces ihumii" strain SD1 (= CSUR P2006) isolated from the stool of a 50-year-old HIV-infected man.

It is frequently a difficult task to differentiate Actinomyces bovis from "anaerobic diphtheroids" of questionable pathogenicity. Diphtheroids, isolated from normal and pathological tissues, resemble A. bovis morphologically and in some cultural characteristics. These similarities and lack of suitable criteria for their definitive identification have been responsible for the errors in separatin...

Various caseinoglycopeptide derivatives prepared from mammalian milk were evaluated as inhibitors of hemagglutinations mediated by Actinomyces viscosus Ny1, Streptococcus sanguis OMZ9, and, for comparative purposes, plant lectins from Arachis hypogaea and Bauhinia purpurea. It was found that recognition of the beta-D-galactose-(1----3)-2-acetamido-2-deoxy-D-galactose carbohydrate chain by Actin...

The intraoral establishment and proportional distribution of suspected periodontal pathogens Actinomyces viscosus and Actinomyces naeslundii were studied using a recently developed differential plating medium, CNAC-20. Saliva and dental plaque samples were collected from 108 subjects ranging in age from infants to young adults; tongue and buccal mucosa samples were collected from only the adult...