Actinomyces: A genus of gram-positive, rod-shaped bacteria whose organisms are nonmotile. Filaments that may be present in certain species are either straight or wavy and may have swollen or clubbed heads.Actinomycosis: Infections with bacteria of the genus ACTINOMYCES.Actinomyces viscosus: A species of ACTINOMYCES found in the oral cavity of man and hamsters. It has been isolated from actinomycotic lesions in swine, cats, and dogs and has been identified as a causative agent of animal diseases.Dental Plaque: A film that attaches to teeth, often causing DENTAL CARIES and GINGIVITIS. It is composed of MUCINS, secreted from salivary glands, and microorganisms.Actinomycetaceae: A family of bacteria including numerous parasitic and pathogenic forms.Mouth: The oval-shaped oral cavity located at the apex of the digestive tract and consisting of two parts: the vestibule and the oral cavity proper.Streptococcus sanguis: A gram-positive organism found in dental plaque, in blood, on heart valves in subacute endocarditis, and infrequently in saliva and throat specimens. L-forms are associated with recurrent aphthous stomatitis.Corynebacterium pyogenes: A species of CORYNEBACTERIUM isolated from abscesses of warm-blooded animals.Streptococcus oralis: A species of gram-positive, coccoid bacteria that is numerous in the mouth and throat. It is a common cause of endocarditis and is also implicated in dental plaque formation.Streptococcus: A genus of gram-positive, coccoid bacteria whose organisms occur in pairs or chains. No endospores are produced. Many species exist as commensals or parasites on man or animals with some being highly pathogenic. A few species are saprophytes and occur in the natural environment.Hydroxyapatites: A group of compounds with the general formula M10(PO4)6(OH)2, where M is barium, strontium, or calcium. The compounds are the principal mineral in phosphorite deposits, biological tissue, human bones, and teeth. They are also used as an anticaking agent and polymer catalysts. (Grant & Hackh's Chemical Dictionary, 5th ed)Fimbriae, Bacterial: Thin, hairlike appendages, 1 to 20 microns in length and often occurring in large numbers, present on the cells of gram-negative bacteria, particularly Enterobacteriaceae and Neisseria. Unlike flagella, they do not possess motility, but being protein (pilin) in nature, they possess antigenic and hemagglutinating properties. They are of medical importance because some fimbriae mediate the attachment of bacteria to cells via adhesins (ADHESINS, BACTERIAL). Bacterial fimbriae refer to common pili, to be distinguished from the preferred use of "pili", which is confined to sex pili (PILI, SEX).Saliva: The clear, viscous fluid secreted by the SALIVARY GLANDS and mucous glands of the mouth. It contains MUCINS, water, organic salts, and ptylin.Veillonella: A genus of gram-negative, anaerobic cocci parasitic in the mouth and in the intestinal and respiratory tracts of man and other animals.Proline-Rich Protein Domains: Protein domains that are enriched in PROLINE. The cyclical nature of proline causes the peptide bonds it forms to have a limited degree of conformational mobility. Therefore the presence of multiple prolines in close proximity to each other can convey a distinct conformational arrangement to a peptide chain.Bacterial Adhesion: Physicochemical property of fimbriated (FIMBRIAE, BACTERIAL) and non-fimbriated bacteria of attaching to cells, tissue, and nonbiological surfaces. It is a factor in bacterial colonization and pathogenicity.RNA, Ribosomal, 16S: Constituent of 30S subunit prokaryotic ribosomes containing 1600 nucleotides and 21 proteins. 16S rRNA is involved in initiation of polypeptide synthesis.Streptococcus mutans: A polysaccharide-producing species of STREPTOCOCCUS isolated from human dental plaque.Intrauterine Devices: Contraceptive devices placed high in the uterine fundus.Actinomycosis, Cervicofacial: A form of ACTINOMYCOSIS characterized by slow-growing inflammatory lesions of the lymph nodes that drain the mouth (lumpy jaw), reddening of the overlying skin, and intraperitoneal abscesses.Gingivitis: Inflammation of gum tissue (GINGIVA) without loss of connective tissue.Tooth: One of a set of bone-like structures in the mouth used for biting and chewing.Lung Abscess: Solitary or multiple collections of PUS within the lung parenchyma as a result of infection by bacteria, protozoa, or other agents.DNA, Ribosomal: DNA sequences encoding RIBOSOMAL RNA and the segments of DNA separating the individual ribosomal RNA genes, referred to as RIBOSOMAL SPACER DNA.Actinomycetales Infections: Infections with bacteria of the order ACTINOMYCETALES.
(1/562) Interaction of inflammatory cells and oral microorganisms. III. Modulation of rabbit polymorphonuclear leukocyte hydrolase release response to Actinomyces viscosus and Streptococcus mutans by immunoglobulins and complement.

In the absence of antiserum, rabbit polymorphonuclear leukocytes (PMNs) released lysosomal enzymes in response to Actinomyces viscosus (19246) but not to Streptococcus mutans (6715). Antibodies had a marked modulating influence on these reactions. PMN hydrolase release was significantly enhanced to both organisms when specific rabbit antiserum and isolated immunoglobulin G (IgG) were included in the incubations. Immune complex F(ab')2 fragments of IgG directed against S. mutans agglutinated bacteria. Immune complexes consisting of S. mutans and F(ab')2 fragments of IgG directed against this organism were not effective as bacteria-IgG complexes in stimulating PMN release. The intensity of the release response to bacteria-IgG complexes was also diminished when PMNs were preincubated with isolated Fc fragments derived from IgG. Fresh serum as a source of complement components had no demonstrable effect on PMN release either alone or in conjuction with antiserum in these experiments. These data may be relevant to the mechanisms and consequences of the interaction of PMNs and plaque bacteria in the pathogenesis of periodontal disease.  (+info)

(2/562) Pathogenesis of cancrum oris (noma): confounding interactions of malnutrition with infection.

This study showed that impoverished Nigerian children at risk for cancrum oris (noma) had significantly reduced plasma concentrations of zinc (< 10.8 micromol/L), retinol (< 1.05 micromol/L), ascorbate (< 11 micromol/L), and the essential amino acids, with prominently increased plasma and saliva levels of free cortisol, compared with their healthy counterparts. The nutrient deficiencies, in concert with previously reported widespread viral infections (measles, herpesviruses) in the children, would impair oral mucosal immunity. We postulate, subject to additional studies, that evolution of the oral mucosal ulcers including acute necrotizing gingivitis to noma is triggered by a consortium of microorganisms of which Fusobacterium necrophorum is a key component. Fusobacterium necrophorum elaborates several dermonecrotic toxic metabolites and is acquired by the impoverished children via fecal contamination resulting from shared residential facilities with animals and very poor environmental sanitation.  (+info)

(3/562) An Arcanobacterium (Actinomyces) pyogenes mutant deficient in production of the pore-forming cytolysin pyolysin has reduced virulence.

Pyolysin (PLO), the hemolytic exotoxin expressed by Arcanobacterium (Actinomyces) pyogenes, is a member of the thiol-activated cytolysin family of bacterial toxins. Insertional inactivation of the plo gene results in loss of expression of PLO with a concomitant loss in hemolytic activity. The plo mutant, PLO-1, has an approximately 1. 8-log10 reduction in the 50% infectious dose compared to that for wild-type A. pyogenes in a mouse intraperitoneal infection model. Studies involving cochallenge of wild-type and PLO-1 bacteria resulted in recovery of similar numbers of both strains, suggesting that PLO production is required for survival in vivo. Recombinant, His-tagged PLO (His-PLO) is cytotoxic for mouse peritoneal macrophages and J774 cells in a dose-dependent manner. Protection against challenge with A. pyogenes could be afforded by vaccination with formalin-inactivated His-PLO, suggesting that PLO is a host-protective antigen, as well as a virulence determinant.  (+info)

(4/562) Childhood actinomycosis. Report of 3 recent cases.

Three cases of childhood actinomycosis are reported, 2 with the commonest presentation of cervicofacial abscess and the third with a rarely reported superficial chest wall abscess. The importance of prompt bacteriological diagnosis and adequate treatment with surgical drainage and chemotherapy is stressed. Though in adults males are affected more frequently than females, the sexes are probably equally affected in childhood.  (+info)

(5/562) Strains of Actinomyces naeslundii and Actinomyces viscosus exhibit structurally variant fimbrial subunit proteins and bind to different peptide motifs in salivary proteins.

Oral strains of Actinomyces spp. express type 1 fimbriae, which are composed of major FimP subunits, and bind preferentially to salivary acidic proline-rich proteins (APRPs) or to statherin. We have mapped genetic differences in the fimP subunit genes and the peptide recognition motifs within the host proteins associated with these differential binding specificities. The fimP genes were amplified by PCR from Actinomyces viscosus ATCC 19246, with preferential binding to statherin, and from Actinomyces naeslundii LY7, P-1-K, and B-1-K, with preferential binding to APRPs. The fimP gene from the statherin-binding strain 19246 is novel and has about 80% nucleotide and amino acid sequence identity to the highly conserved fimP genes of the APRP-binding strains (about 98 to 99% sequence identity). The novel FimP protein contains an amino-terminal signal peptide, randomly distributed single-amino-acid substitutions, and structurally different segments and ends with a cell wall-anchoring and a membrane-spanning region. When agarose beads with CNBr-linked host determinant-specific decapeptides were used, A. viscosus 19246 bound to the Thr42Phe43 terminus of statherin and A. naeslundii LY7 bound to the Pro149Gln150 termini of APRPs. Furthermore, while the APRP-binding A. naeslundii strains originate from the human mouth, A. viscosus strains isolated from the oral cavity of rat and hamster hosts showed preferential binding to statherin and contained the novel fimP gene. Thus, A. viscosus and A. naeslundii display structurally variant fimP genes whose protein products are likely to interact with different peptide motifs and to determine animal host tropism.  (+info)

(6/562) Blastogenic response of human lymphocytes to oral bacterial antigens: comparison of individuals with periodontal disease to normal and edentulous subjects.

Cell-mediated immunity in humans to antigens derived from oral plaque bacteria was investigated by using the lymphocyte blastogenesis assay. Subjects with varying severities of periodontal disease including normal, gingivitis, periodontitis, and edentulous were compared. Mononuclear leukocytes were separated from peripheral blood and cultured with antigens prepared by sonication of Actinomyces viscosus (AV), Actinomyces naeslundii (AN), Veillonella alcalescens (VA), Leptotrichia buccalis (LB), Bacteroides melaninogenicus (BM), and homologous dental plaque (DP). The lymphocyte response of subjects with gingivitis or periodontitis was significantly greater than that of normal subjects to antigens of AV, AN, and DP, but did not differ from the response of edentulous subjects. Periodontitis subjects were significantly more reactive than edentulous and normal subjects in response to VA, LB, and BM. These findings suggest that the tested gram-negative bacteria and the host response they evoke are associated with advanced periodontal destruction.  (+info)

(7/562) Cell wall-anchored CshA polypeptide (259 kilodaltons) in Streptococcus gordonii forms surface fibrils that confer hydrophobic and adhesive properties.

It has been shown previously that inactivation of the cshA gene, encoding a major cell surface polypeptide (259 kDa) in the oral bacterium Streptococcus gordonii, generates mutants that are markedly reduced in hydrophobicity, deficient in binding to oral Actinomyces species and to human fibronectin, and unable to colonize the oral cavities of mice. We now show further that surface fibrils 60.7 +/- 14.5 nm long, which are present on wild-type S. gordonii DL1 (Challis) cells, bind CshA-specific antibodies and are absent from the cell surfaces of cshA mutants. To more precisely determine the structural and functional properties of CshA, already inferred from insertional-mutagenesis experiments, we have cloned the entire cshA gene into the replicative plasmid pAM401 and expressed full-length CshA polypeptide on the cell surface of heterologous Enterococcus faecalis JH2-2. Enterococci expressing CshA exhibited a 30-fold increase in cell surface hydrophobicity over E. faecalis JH2-2 carrying the pAM401 vector alone and 2.4-fold-increased adhesion to human fibronectin. CshA expression in E. faecalis also promoted cell-cell aggregation and increased the ability of enterococci to bind Actinomyces naeslundii cells. Electron micrographs of negatively stained E. faecalis cells expressing CshA showed peritrichous surface fibrils 70.3 +/- 9.1 nm long that were absent from control E. faecalis JH2-2(pAM401) cells. The fibrils bound CshA-specific antibodies, as detected by immunoelectron microscopy, and the antibodies inhibited the adhesion of E. faecalis cells to fibronectin. The results demonstrate that the CshA polypeptide is the structural and functional component of S. gordonii adhesive fibrils, and they provide a molecular basis for past correlations of surface fibril production, cell surface hydrophobicity, and adhesion in species of oral "sanguis-like" streptococci.  (+info)

(8/562) Bacterial flora of liver abscesses in feedlot cattle fed tylosin or no tylosin.

Bacterial flora of liver abscesses from cattle fed tylosin or no tylosin and susceptibilities of the predominant bacterial isolates to tylosin and other antimicrobial compounds were determined. Abscessed livers were collected at slaughter from cattle originating from feedlots that had fed tylosin (n = 36) or no tylosin (n = 41) for at least 2 yr, and segments of livers with one or two intact abscesses were transported to the laboratory. Abscesses were cultured for anaerobic and facultative bacteria. Fusobacterium necrophorum, either as single culture or mixed with other bacteria, was isolated from all abscesses. The incidence of subsp. necrophorum, as part of the mixed infection, was lower (P < .05) in the tylosin group than in the no-tylosin group (33 vs 61%). However, the incidence of Actinomyces pyogenes was higher (P < .01) in the tylosin group than in the no-tylosin group (53 vs 10%). Totals of 119 F. necrophorum and 21 A. pyogenes isolates were used for determinations of susceptibilities to bacitracin, oxytetracycline, chlortetracycline, lasalocid, monensin, tylosin, tilmicosin, and virginiamycin. The minimum inhibitory concentrations (MIC) of antibiotics were determined with a broth microdilution method. The mean MIC of tylosin for F. necrophorum and A. pyogenes were not different between isolates from tylosin and no-tylosin groups. We concluded that continuous feeding of tylosin did not induce resistance in F. necrophorum or A. pyogenes. Also, the higher incidence of mixed infection of F. necrophorum and A. pyogenes in liver abscesses of tylosin-fed cattle suggests a potential synergistic interaction between the two organisms in causing liver abscesses.  (+info)

*  Tooth whitening
... plaque may become stained by chromogenic bacteria such as Actinomyces species. Calculus: neglected plaque will eventually ...
*  Actinomycosis
Actinomyces bacteria are generally sensitive to penicillin, which is frequently used to treat actinomycosis. In cases of ... About 70% of infections are due to either Actinomyces israelii or A. gerencseriae. Infection can also be caused by other ... Actinomycosis is primarily caused by any of several members of the bacterial genus Actinomyces. These bacteria are generally ... Actinomycosis is a rare infectious bacterial disease caused by Actinomyces species. ...
*  Lung abscess
Anaerobic bacteria: Actinomyces, Peptostreptococcus, Bacteroides, Fusobacterium species, Microaerophilic streptococcus : ...
*  Actinomyces
... is a genus of the Actinobacteria class of bacteria. They are all gram-positive. Actinomyces species are ... Actinomyces species may form endospores, and, while individual bacteria are rod-shaped, Actinomyces colonies form fungus-like ... Actinomyces naeslundii MG1 Genome Page Actinomyces at BacDive - the Bacterial Diversity Metadatabase Biology portal. ... Actinomyces species have also been shown to infect the central nervous system in a dog "without history or evidence of previous ...
*  Actinomyces gerencseriae
... is a species in the genus Actinomyces once known as Actinomyces israelii serovar II. A. gerencseriae ... Type strain of Actinomyces gerencseriae at BacDive - the Bacterial Diversity Metadatabase Type strain of Actinomyces ... Johnson, J L; Moore, Lillian H; Kaneko, Beverly; Moore, W E C (July 1990). "Actinomyces georgiae sp.no., Actinomyces ... Tang, G; Yip, HK; Samaranayake, LP; Luo, G; Lo, EC; Teo, CS (2003). "Actinomyces spp. in supragingival plaque of ethnic Chinese ...
*  Actinomyces viscosus
"Oral bacterium - Actinomyces viscosus". Dennis Kunkel Microscopy, Inc. Retrieved 19 December 2015. "Actinomyces viscosus. (n.d ... A. viscosus infection symptoms are indistinguishable from Actinomyces israelii infection symptoms or Actinomyces bovis ... Actinomyces viscosus is a human and animal pathogen/pathobiont which colonises the mouths of 70% of adult humans. A. viscosus ... "Actinomyces viscosus". RightDiagnosis.com. Retrieved 19 December 2015. Mardis, JS; Many, WJ Jr (February 2001). "Endocarditis ...
*  Actinomyces georgiae
... is a species in the genus of Actinomyces. It is a part of the human periodontal flora. Johnson, J. L.; ... Actinomyces georgiae at the Encyclopedia of Life LPSN Type strain of Actinomyces georgiae at BacDive - the Bacterial Diversity ... nov., Actinomyces gerencseriae sp. nov., Designation of Two Genospecies of Actinomyces naeslundii, and Inclusion of A. ... Sarkonen, N.; Kononen, E.; Summanen, P.; Kononen, M.; Jousimies-Somer, H. (2001). "Phenotypic Identification of Actinomyces and ...
*  Actinomyces neuii
... is a species of Gram-positive, rod-shaped bacteria within the Actinomyces. It is known to live commensally on ... Type strain of Actinomyces neuii at BacDive - the Bacterial Diversity Metadatabase Biology portal. ... "Soft Tissue Infections Caused by Actinomyces neuii, a Rare Pathogen". Journal of Clinical Microbiology. 48 (4): 1508-1509. doi: ...
*  Actinomyces radicidentis
... is a species in the genus of Actinomyces, first isolated from infected root canals of teeth. ITs type ... link) Actinomyces radicidentis at the Encyclopedia of Life LPSN Type strain of Actinomyces radicidentis at BacDive - the ... "Characterization of Actinomyces isolates from infected root canals of teeth: description of Actinomyces radicidentis sp. nov". ... Like other pathogenic Actinomyces, by collectively finding itself in a protected biofilm environment can evade elimination by ...
*  Actinomyces israelii
... is a species of Gram-positive, rod-shaped bacteria within the Actinomyces. Known to live commensally on ... Type strain of Actinomyces israelii at BacDive - the Bacterial Diversity Metadatabase Biology portal. ...
*  Actinomyces bovis
... is a gram-positive, rod-shaped bacterium of the genus Actinomyces. It is the causative agent of Lumpy jaw in ... Actinomyces bovis can be isolated from the pus of an infected animal and cultured in brain heart infusion. It is catalase- ... It was thought to be identical to Actinomyces israelii until 1940, when D. Erikson showed these to be two separate organisms. ... P Mansouri; S Farshi; A Khosravi; ZS Naraghi (2011). "Primary cutaneous actinomycosis caused by Actinomyces bovis in a patient ...
*  Actinomyces naeslundii
"Emended description of Actinomyces naeslundii and descriptions of Actinomyces oris sp. nov. And Actinomyces johnsonii sp. nov ... Actinomyces naeslundii MG1 Genome Page Type strain of Actinomyces naeslundii at BacDive - the Bacterial Diversity Metadatabase ... Bacteria formerly known as "Actinomyces naeslundi genospecies 2" were reclassified under the new species name Actinomyces oris ... Those formerly known as "Actinomyces naeslundi genospecies WVA 963" were reclassified as Actinomyces johnsonii. Many species of ...
*  Anaerobic infection
Actinomyces are rarely isolated. At the stage of encephalitis, antimicrobial therapy and utilization of measures to lower the ... Actinomyces spp. and Eubacterium nodatum are often recovered in infections associated with intrauterine devices. Mobiluncus spp ... Penicillin can be added to metronidazole in the treating dental and intracranial infections to cover Actinomyces spp., ... and Actinomyces. Oral agents adequate for polymicrobial oral infections include the combinations of amoxicillin plus ...
*  Arcanobacterium
pyogenes (formerly Actinomyces pyogenes; now Trueperella pyogenes) Collins, MD; Jones, D; Schofield, GM (1982), " ... Pascual Ramos, C; Foster, G; Collins, MD (1997), "Phylogenetic analysis of the genus Actinomyces based on 16S rRNA gene ... A. abortisuis (now Trueperella abortisuis) A. bernardiae (formerly Actinomyces bernardiae; now Trueperella bernardiae) A. ...
*  Propionibacterium propionicus
G. H. W. Bowden (1996). "Actinomyces, Propionibacterium propionicus, and Streptomyces". In Samuel Baron. Medical Microbiology ( ... "Susceptibilities of Actinomyces Species and Propionibacterium propionicus to Antimicrobial Agents". Clinical Infectious ... "Polymerase chain reaction detection of Propionibacterium propionicus and Actinomyces radicidentis in primary and persistent ...
*  Streptomyces lavendulae
The actinomyces of the soil. Soil Sci. 1:99-134. Ikea H, Ishikawa J, Hanamoto A, Shinose M, Kikuchi H, Shiba T, Sakaki Y, ... VI Strain variation and production of streptothricin by Actinomyces lavendulae. Proc Natl Acad Sci. 31:208-214. Waksman SA, ...
*  Aggregatibacter
New Latin actinomyces -etis, an actinomycete; Latin comitans, accompanying; New Latin actinomycetemcomitans, accompanying an ...
*  Tubo-ovarian abscess
Actinomyces is also recovered from TOA. Laparoscopy and other imaging tools can visualize the abscess. Physicians are able to ...
*  James Israel
Ueber Reincultur des Actinomyces und seine Uebertragbarkeit auf Thiere. Archiv Pathologische Anatomie; (1891); 126:11-28, (with ... Centers for Disease Control and Prevention Actinomyces Odontolyticus Bacteremia J.P. Euzéby: List of Prokaryotic names with ... caused by a pathogen that was later given the name Actinomyces israelii. Nicoladoni-Israel-Branham sign: A circulatory ... Standing in Nomenclature - Genus Actinomyces Archived 2012-03-02 at the Wayback Machine. "Actinomycosis of the Knee". JAMA ...
*  Streptomyces antibioticus
External link in ,website= (help) Waksman, S. A.; Woodruff, H. B. (1941-08-01). "Actinomyces antibioticus, a New Soil Organism ... Streptomyces antibioticus was discovered by Selman Waksman and H. Boyd Woodruff, who named the bacterium Actinomyces ... Through this method they isolated and characterized Actinomyces antibioticus. Two years later, Waksman renamed the organism ... Streptomyces antibioticus (previously known as Actinomyces antibioticus) is a gram-positive bacterium discovered in 1941 by ...
*  Charles Drechsler
His dissertation involved the taxonomic placement of the genus Actinomyces. In 1917, Dr. Drechsler moved to Washington D.C., ...
*  Bronchopleural fistula
Infectious causes include tuberculosis, Actinomyces israelii, Nocardia, and Blastomyces dermatitidis. Malignancy and trauma can ...
*  Max Wolff (physician)
Über Reincultur des Actinomyces und seine Übertragbarkeit auf Thiere (About pure culture of actinomyces and its transferability ... Zur Actinomyces-Frage (On the question of actinomyces), Virchow's Archiv CLI. Zur Prophylaxe der venerischen Krankheiten ( ... Wolff is remembered for his work with surgeon James Adolf Israel (1848-1926) involving the isolation of Actinomyces and ...
*  Bacterial morphological plasticity
For example, Actinomyces israelii grows as filamentous rods or branched in the absence of phosphate, cysteine, or glutathione. ... "Comparative Cell Wall Analyses of Morphological Forms Within the Genus Actinomyces". 94 (4): 875-883. ...
*  Arginine deiminase
This enzyme is widely expressed in bacteria, including streptococcus and actinomyces. The bacterial arginine deiminase ...
Actinomyces israelii  Actinomyces israelii
... industrial applications and more information for Actinomyces israelii. ... Actinomyces israelii is the most common cause of actinomycosis.. Disclaimer: This information is presented as is. While every ...
more infohttp://thelabrat.com/protocols/Bacterialspecies/Actinomycesisraelii.shtml
Actinomyces facts, information, pictures | Encyclopedia.com articles about Actinomyces  Actinomyces facts, information, pictures | Encyclopedia.com articles about Actinomyces
Make research projects and school reports about Actinomyces easy with credible articles from our FREE, online encyclopedia and ... Actinomyces Actinomyces is a genus of bacteria . The bacteria that grouped in this genus share several characteristics. The ... Actinomyces (ak-ti-noh-my-seez) n. a genus of Gram-positive nonmotile fungus-like bacteria that cause disease in animals and ... Actinomyces A Dictionary of Nursing © A Dictionary of Nursing 2008, originally published by Oxford University Press 2008. ...
more infohttp://www.encyclopedia.com/plants-and-animals/microbes-algae-and-fungi/moneran-and-protistan/actinomyces
Actinomyces viscosus bacteria, SEM - Stock Image F012/4031 - Science Photo Library  Actinomyces viscosus bacteria, SEM - Stock Image F012/4031 - Science Photo Library
Coloured scanning electron micrograph (SEM) of strands of Actinomyces viscosus. Actinomyces viscosus is a filamentous soil ... Caption: Actinomyces viscosus bacteria. Coloured scanning electron micrograph (SEM) of strands of Actinomyces viscosus. ... Keywords: actinobacteria, actinomyces viscosus, actinomyces viscosus bacteria, bacteria, bacterial, bacteriology, bacterium, ... Actinomyces viscosus is a filamentous soil bacterium, classified in the Actinobacteria.. Release details: Model release not ...
more infohttp://www.sciencephoto.com/media/690208/view
Table - Actinomyces Odontolyticus Bacteremia - Volume 9, Number 12-December 2003 - Emerging Infectious Disease journal - CDC  Table - Actinomyces Odontolyticus Bacteremia - Volume 9, Number 12-December 2003 - Emerging Infectious Disease journal - CDC
We describe two immunosuppressed female patients with fever and Actinomyces odontolyticus bacteremia, a combination documented ... Reported cases of Actinomyces odontolyticus infectiona. Case. Y (Ref). Disease. Age/Sex. Underlying disease. Presentation. ... Actinomyces Odontolyticus Bacteremia Lawrence A. Cone*†. , Millie M. Leung†, and Joel Hirschberg*† ...
more infohttps://wwwnc.cdc.gov/eid/article/9/12/02-0646-t1
actinomycosis facts, information, pictures | Encyclopedia.com articles about actinomycosis  actinomycosis facts, information, pictures | Encyclopedia.com articles about actinomycosis
Tooth extraction, tooth disease, root canal treatment, jaw surgery, or poor dental hygiene can allow Actinomyces israelii to ... Actinomyces israelii is an anaerobic bacterium which means it dislikes oxygen but grows very well in deep tissues where oxygen ... In humans these granules consist of Actinomyces israelii, a bacterium that used to be considered a fungus. Actinomycosis also ... actinomycosis (ak-ti-noh-my-koh-sis) n. a noncontagious disease caused by the bacterium Actinomyces israelii and resulting in ...
more infohttps://www.encyclopedia.com/medicine/diseases-and-conditions/pathology/actinomycosis
Internet Scientific Publications  Internet Scientific Publications
Sclerosing osteomyelitis and actinomyces naeslundii infection of surrounding tissues. Clin Infect Dis 1995; 20: 1037-9.. 5. ... Gram staining showed colonies of actinomyces confirming the diagnosis of actinomycosis. After confirmation of diagnosis, two ... slowly progressive infection caused by anaerobic or microaerophilic bacteria primarily of the genus Actinomyces that colonize ...
more infohttp://ispub.com/IJOS/5/1/8432
Pulmonary actinomycosis complicating infliximab therapy for Crohns disease  Pulmonary actinomycosis complicating infliximab therapy for Crohn's disease
Actinomyces graevenitzii was cultured from the bronchial lavage fluid; cultures for tuberculosis, fungi and viruses were ... Pulmonary actinomycosis is a relatively rare disease usually caused by Actinomyces israelii, but other pathogenic species have ... 4. Bassiri A, Girgis R, Theodore J. Actinomyces odontolyticus thoracopulmonary infections: two cases in lung and heart‐lung ...
more infohttp://pubmedcentralcanada.ca/pmcc/articles/PMC2117133/
Actinomycosis | Coliseum Health System  Actinomycosis | Coliseum Health System
Hall V. Actinomyces-gathering evidence of human colonization and infection. Anaerobe. 2008;14(1):1-7. ... Bisphosphonate-related osteonecrosis of the jaw: the role of actinomyces. Clin Infect Dis. 2009;49(11):1729-1732. ...
more infohttps://coliseumhealthsystem.com/hl/?/181528/sp
IBIMA Publishing A Unique Case of Trueperella Pyogenes Causing Hepatic Abscesses in Pigeons  IBIMA Publishing A Unique Case of Trueperella Pyogenes Causing Hepatic Abscesses in Pigeons
Eberson to the Genus Actinomyces as Actinomyces Pyogenes (Glage) Comb. Nov.," International Journal of Systemic Bacteriology, ... "Biochemical and Ribotypic Comparison of Actinomyces Pyogenes and Actinomyces Pyogenes-Like Organisms from Liver Abscesses, ... Barbour, E. K., Brinton, M. K., Caputa, A., Johnson, J. B. & Poss, P. E. (1991). "Characteristics of Actinomyces Pyogenes ... "Isolation of Gram-Positive Rods that Resemble but are Clearly Distinct from Actinomyces Pyogenes from Mixed Wound Infections," ...
more infohttp://ibimapublishing.com/articles/IJVMR/2013/486054/
Systematic Bacteriology and Virology: Actinomycetes  Systematic Bacteriology and Virology: Actinomycetes
Human pathogenic actinomycetes belong to four genera : Actinomyces, Nocardia, Streptomyces & Actinomadura. Actinomyces is non ... Actinomyces - are gram positive, nonmotile, non sporing, nonacid fast, 0.5-1µm in diameter, often grow in mycelial forms and ... The actinomyces species are normally present in the mouth, intestine, vagina as commensals. Actinomycosis in human beings ... Resemble actinomyces morphologically but are aerobic, filamentous and acid fast. They are Gram positive, frequently found in ...
more infohttp://bac-vir.blogspot.com/2012/08/actinomycetes.html
Actinomycosis | Hyperbaric Oxygen Treatment Center  Actinomycosis | Hyperbaric Oxygen Treatment Center
Actinomyces are indigenous to the oral and intestinal microflora. Therefore, culture of the micro-organism from these sites ... Unfortunately, the presence of multiple bacterial organisms makes the primary isolation of Actinomyces more difficult. Because ...
more infohttp://hyperbaricoxygenchamber.com/actinomycosis/
Zoocin A and lauricidin in combination selectively inhibit Streptococcus mutans in a biofilm model  Zoocin A and lauricidin in combination selectively inhibit Streptococcus mutans in a biofilm model
A triple-species biofilm model was developed where S. mutans, Streptococcus oralis and Actinomyces viscosus were grown on glass ...
more infohttps://ourarchive.otago.ac.nz/handle/10523/662
Actinomyces bovis | bacterium | Britannica.com  Actinomyces bovis | bacterium | Britannica.com
... most common pathogenic species are Actinomyces bovis in cattle and A. israeli and A. gerencseriae in humans. ... Other articles where Actinomyces bovis is discussed: actinomycosis: … ... most common pathogenic species are Actinomyces bovis in cattle and A. israeli and A. gerencseriae in humans. ...
more infohttps://www.britannica.com/science/Actinomyces-bovis
Actinomyces - Wikispecies  Actinomyces - Wikispecies
Genus: Actinomyces Species: A. bernardiae - A. bovis - A. bowdenii - A. canis - A. cardiffensis - A. catuli - A. coleocanis - A ... C.O. HARZ: Actinomyces bovis ein neuer schimmel in den geweben des rindes. Deutsche Zeitschrift für Thiermedizin. 5: 125-140 ( ... Retrieved from "https://species.wikimedia.org/w/index.php?title=Actinomyces&oldid=3353281" ...
more infohttps://species.wikimedia.org/wiki/Actinomyces
Actinomyces coleocanis DSM 15436  Actinomyces coleocanis DSM 15436
Proteome IDi ,p>The proteome identifier (UPID) is the unique identifier assigned to the set of proteins that constitute the ,a href="http://www.uniprot.org/manual/proteomes_manual">proteome,/a>. It consists of the characters 'UP' followed by 9 digits, is stable across releases and can therefore be used to cite a UniProt proteome.,p>,a href='/help/proteome_id' target='_top'>More...,/a>,/p> ...
more infohttp://www.uniprot.org/proteomes/UP000010301
Actinomyces - Wikipedia  Actinomyces - Wikipedia
Actinomyces is a genus of the Actinobacteria class of bacteria. They are all gram-positive. Actinomyces species are ... Actinomyces species may form endospores, and, while individual bacteria are rod-shaped, Actinomyces colonies form fungus-like ... Actinomyces naeslundii MG1 Genome Page Actinomyces at BacDive - the Bacterial Diversity Metadatabase Biology portal. ... Actinomyces species have also been shown to infect the central nervous system in a dog "without history or evidence of previous ...
more infohttps://en.wikipedia.org/wiki/Actinomyces
Actinomyces - Biology-Online Dictionary  Actinomyces - Biology-Online Dictionary
Actinomyces (Science: microbiology) a genus of gram-positive, rod-shaped bacteria whose organisms are nonmotile. Filaments that ... Retrieved from "https://www.biology-online.org/dictionary/index.php?title=Actinomyces&oldid=65198" ...
more infohttps://www.biology-online.org/dictionary/Actinomyces
Actinomyces israelii May Produce Vulvar Lesions
       Suspicious for Malignancy  Actinomyces israelii May Produce Vulvar Lesions Suspicious for Malignancy
Actinomyces israelii May Produce Vulvar Lesions Suspicious for Malignancy. Jennifer Y. McElroy, Marsha E. Gorens, Lisa N. ... Actinomyces israelii may produce vulvar lesions that are suspicious for malignancy. Thus, biopsies and cultures are both ... We present a case of Actinomyces israelii causing vulvar mass suspicious for malignancy in a postmenopausal woman. Case. A 60 ... Biopsy and cultures revealed a ruptured epidermal inclusion cyst containing granulation tissue and Actinomyces israelii. ...
more infohttps://www.hindawi.com/journals/idog/2006/048269/abs/
Actinomyces gerencseriae - Wikipedia  Actinomyces gerencseriae - Wikipedia
Actinomyces gerencseriae is a species in the genus Actinomyces once known as Actinomyces israelii serovar II. A. gerencseriae ... Type strain of Actinomyces gerencseriae at BacDive - the Bacterial Diversity Metadatabase Type strain of Actinomyces ... Johnson, J L; Moore, Lillian H; Kaneko, Beverly; Moore, W E C (July 1990). "Actinomyces georgiae sp.no., Actinomyces ... Tang, G; Yip, HK; Samaranayake, LP; Luo, G; Lo, EC; Teo, CS (2003). "Actinomyces spp. in supragingival plaque of ethnic Chinese ...
more infohttps://en.wikipedia.org/wiki/Actinomyces_gerencseriae
  • Two strains each of Actinomyces naeslundii, Candida albicans and Enterococcus faecalis were tested as late logarithmic phase inocula, against sodium hypochlorite adjusted to 0.5, 1.0, 2.5 and 5.25% w/v. Contact times used were 0, 10, 20, 30, 60 and 120 s. (ovid.com)
  • We identified 92 clinical strains of Actinomyces , including 13 strains in the related Arcanobacterium-Actinobaculum taxon, by 16S rRNA gene sequence analysis and recorded their biotypes, sources, and disease associations. (asm.org)
  • One novel group with three strains, Actinomyces houstonensis sp. (asm.org)
  • In root surface caries, species of Actinomyces can dominate the flora of lesions in root tissue of mainly elderly people, and it also aids in plaque development in periodontal diseases, which can lead to gingivitis. (canada.ca)
  • Actinomyces turicensis was the most frequently isolated species and was associated with genitourinary tract specimens, often with other organisms and rarely with inflammatory cells. (asm.org)
  • and in recent studies of three newly described species, Actinomyces turicensis was reported to be associated with genital, skin-related, and urinary tract infections, whereas Actinomyces radingae was found only in skin-related infections and Actinomyces europaeus was detected in patients with urinary tract infections ( 12 , 13 , 14 ). (asm.org)
  • Thus, these results demonstrate that insertion of heterologous DNA at specific sites of the Actinomyces genome can be facilitated with integratable plasmids and that the transformants and mutants generated will aid in the delineation of the roles and contributions of specific genes to the structure and function of any macromolecule produced by these organisms. (asm.org)
  • The Actinomyces fimbrial system is a versatile adhesive principle for promoting bacterial coaggregation and host tissue adherence that leads to the development of one of the most complex biofilms, the dental plaque. (asmscience.org)
  • Initial colonizers like Actinomyces oris ( Aori ), Streptococcus gordonii ( Sgor ), Streptococcus sanguinis, Streptococcus oralis , and Streptococcus mitis (collectively, Ssom ) and S. oralis ( Sora ) adhere to the salivary pellicle and interact with each other (coaggregation) (stage 1). (asmscience.org)
  • Currently, identification methods such as polymerase chain reaction ( PCR ), chromatography to detect unique cell wall constituents, and antibody-based assays do always perform effectively with Actinomyces . (encyclopedia.com)