OBJECTIVE To assess various methods of management of actinomyces-like organisms associated with intrauterine devices. METHODS A retrospective chart review of 173 patients with intrauterine device-associated actinomyces- like organisms detected on Pap smear was performed. The patients were managed by IUD removal with or without antibiotic therapy, antibiotic therapy alone, or no treatment at a...

A novel, Gram-staining-positive, facultatively anaerobic, non-motile and coccus-shaped bacterium, strain WL80(T), was isolated from the gut of an abalone, Haliotis discus hannai, collected from the northern coast of Jeju in Korea. Optimal growth occurred at 30 °C, pH 7-8 and with 1% (w/v) NaCl. Phylogenetic analyses based on the 16S rRNA gene sequence revealed that strain WL80(T) fell within th...

BACKGROUND Pelvic-abdominal actinomycosis is a rare chronic condition caused by an anaerobic, gram-negative rod-shaped commensal bacterium of the Actinomyces species. When Actinomyces becomes pathogenic, it frequently causes a chronic infection with granulomatous abscess formation with pus. Due to diversity in clinical and radiological presentation, actinomycosis can easily be mistaken for seve...

Bacterial colonies, foreign bodies or other artifacts in tonsil specimens are identified as incidental findings. Actinomyces are relatively often encountered on histological examination of tonsils. Actinomyces israeli and Actinomyces naeslundi are the most frequently isolated pathogenic Actinomycetes. They are Gram positive, anaerobic, non acid fast, branching, filamentous and slow growing bact...

BACKGROUND We present a case of Actinomyces israelii causing vulvar mass suspicious for malignancy in a postmenopausal woman. CASE A 60 year-old woman presented due to a firm, nonmobile, 10 cm vulvar mass, which had been rapidly enlarging for 5 months. The mass was painful, with localized pruritus and sinus tracts oozing of serosanguinous fluid. Biopsy and cultures revealed a ruptured epiderm...

Buchanan, B. B. (Duke University, Durham, N.C.), and Leo Pine. Relationship of carbon dioxide to aspartic acid and glutamic acid in Actinomyces naeslundi. J. Bacteriol. 89:729-733. 1965.-CO(2), which was essential for the fermentation of glucose to succinic acid by Actinomyces naeslundii, was also required for the synthesis of internal aspartic acid, for which the cells lack a permease.

Actinomyces graevenitzii is a newly recognized Actinomyces species that is seldom isolated from clinical specimens. A case of multiple pulmonary abscesses mimicking acute pulmonary coccidioidomycosis is described in this study, and the findings indicate that this organism is an opportunistic human pathogen.

We describe a patient with a serious urinary tract infection due to Actinomyces bernardiae (formerly classified as CDC [Centers for Disease Control and Prevention, Atlanta] fermentative coryneform group 2). Our patient had long-standing bladder dysfunction and developed hydroureteronephrosis, renal lithiasis, perirenal abscesses, and septicemia. A. bernardiae is distinct from Actinomyces pyogen...

Actinomyces spp., predominant members of human oral biofilms, may use extracellular sialidase to promote adhesion, deglycosylate immunoglobulins and liberation of nutrients. Partial nanH gene sequences (1,077 bp) from Actinomyces oris (n=74), Actinomyces naeslundii (n=30), Actinomyces viscosus (n=1) and Actinomyces johnsonii (n=2) which included the active-site region and the bacterial neuramin...