Publications

TitleAbstractYear
Filter
PMID
Filter
echocardiographic appearance of aortic valve vegetations in bacterial endocarditis due to actinobacillus actinomycetemcomitans.this report describes the echocardiographic features seen in a case of bacterial endocarditis due to actinobacillus actinomycetemcomitans. the echocardiogram demonstrated large, bulky clusters of echoes filling the aortic root in diastole which extended to the subvalvular and supravalvular areas. the echocardiographic features mimicked those described in cases of candida endocarditis. the morphologic appearance of vegetations at surgery correlated with the echocardiographic findings.1977402396
[differentiation of "pasteurella" and "actinobacillus" from enterobacteriaceae" by use of the o/129 vibriostatic agent (author's transl)].out of 134 pasteurella and actinobacillus strains studied, 132 are found to be susceptible to the o/129 vibriostatic agent with growth inhibition diameter ranging from 10 to 42 mm (86% in the range 25 to 32 mm); 46 reference strains of enterobacteriaceae including yersinia are resistant to the o/129 vibriostatic agent. this test can quickly differentiate between typical or atypical enterobacteriaceae and the genus pasteurella or actinobacillus.1979389129
bacterial isolates associated with epididymitis in rams from idaho and eastern oregon flocks.testicles from 47 rams with palpable lesions of epididymitis were subjected to bacterial culture. of the testicles examined by culture technique, 49% were positive for bacterial growth. the 2 most frequent isolates were actinobacillus actinomycetemcomitans (23.4% of the testicular pairs) and brucella ovis (14.9% of the testicular pairs). heretofore a actinomycetem-comitans has not been reported as a cause of epididymitis in rams.1979453669
[actinobacillus infections in swine (author's transl)].actinobacilli infections in pigs are relatively rare. most cases were septicaemic in the first week of life. with increasing age manifestations after generalized infections were characteristic, such as arthritis, polyarthritis, endocarditis, nephritis, osteomyelitis and embolic pneumonia. of 34 porcine strains 33 were identified as a. equuli and only one was identical with a. suis. the justification of retaining this species is discussed.1977323819
prosthetic valve endocarditis by opportunistic pathogens.the incidence of endocarditis produced by the so-called "opportunists" as a complication of prosthetic valve surgery is progressively increasing in frequency and gradually transforming the clinical picture habitually associated with this disease. we report six cases of endocarditis produced by opportunistic microorganisms (two cases by candida, and the remaining by serratia, actinobacillus, acinetobacter calcoaceticus, and bacteroides fragilis, and by corynebacterium diphtheriae) in four male an ...1977319774
a study of the bacteria associated with advancing periodontitis in man.samples of apical plaque were taken by means of an anaerobic gas-flushed syringe from 21 sites in eight patients. the samples were anaerobically dispersed, diluted and plated and incubated in an atmosphere of 80% n2, 10% h2 and 10% co2 for 7-21 days. all colonies on plates containing 20-50 isolates were picked, repeatedly restreaked, characterized and identified where possible by a probabilistic computer identification program. the sites were divided into four groups on the basis of clinical fea ...1979294457
increase in the population of duodenal immunoglobulin a plasmocytes in axenic mice associated with different living or dead bacterial strains of intestinal origin.various bacterial strains were tested for their ability to stimulate immunoglobulin a (iga) plasmocytes to populate the duodenal lamina propria in axenic mice. the mice were associated with the strains for at least 4 weeks. the strains inhabiting the conventional mouse intestine and belonging to the genera lactobacillus, streptococcus, eubacterium, actinobacillus, micrococcus, corynebacterium, and clostridium (including the extremely oxygen-sensitive ones) are only slightly or nonimmunogenic, wh ...1978357289
criteria for the infectious agents in dental caries and periodontal disease. 1979295292
interaction of inflammatory cells and oral microorganisms. viii. detection of leukotoxic activity of a plaque-derived gram-negative microorganism.in the present study we identified a gram-negative anaerobic rod referred to as y4 which was cytotoxic for human polymorphonuclear leukocytes. y4 was isolated from dental plaque of a patient with juvenile periodontitis and presented most of the taxonomic characteristics of actinobacillus species. under experimental conditions, viable y4 were cytotoxic for human peripheral blood polymorphonuclear leukocytes in serum-free cultures. cytotoxicity was dependent on bacterial concentrations and was enh ...1979222679
phosphatase activity of aerobic and facultative anaerobic bacteria.1115 strains of aerobic and facultatively anaerobic bacteria were tested for phosphatase activity by a conventional plate method and a microtest. the microtest was devised to allow results to be read after 4 h cultivation. phosphatase activity was found in wide range of species and strains. besides staphylococci, where the test for phosphatase is successfully used, it may be applied as one of the valuable tests for the differentiation of the following species: bacillus cereus, b. licheniformis, ...1978216188
[comparative characteristics of the ultrastructure of the causative agents of glanders and melioidosis].the authors examined the ultrastructure of the causative agents of glanders and melio idosis. it was revealed that the structure of their cell wall and of the cytoplasmic membrane was characteristic of gram negative bacteria. the cytoplasm of both types of the causative agents showed the presence of ribosomes, membrane structure, nucleoid, and also osmiophilic and osmiophobic inclusions.1975174344
mycetoma-like infection caused by previously undescribed bacterium.a 56-year-old man had a verrucous plaque with draining abscesses on the dorsum of hir foot for four years. examination of cultures revealed a gram-negative bacterium that, to our knowledge, has not been described in the literature. the infection was cured by treatment with co-trimoxazole (trimethoprim and sulfamethoxazole) and topical 10% lactic acid in hydrophylic emulsion base.1978677919
galactose-6-sulfatase from actinobacillus sp. ifo-13310 and its action on sulfated oligosaccharides from keratan sulfate.a 6-sulfatase specific for sugasr of the galactose configuration was purified 81-fold from the crude extract of actinobacillus sp. ifo-13310. this preparation contained activity towards both n-acetylgalactosamine 6-sulfate and galactose 6-sulfate (relative activity, 2.4 : 1). the enzyme also release inorganic sulfate from the non-reducing galactose 6-sulfate end group of a trisaccharide disulfate prepared from keratan sulfate by sequential degradation with endo-beta-galactosidase, n-acetylglucos ...1978153151
lipoquinones of some spore-forming rods, lactic-acid bacteria and actinomycetes.the respiratory quinones of 73 strains of gram-positive bacteria including spore-forming rods, lactic-acid bacteria and actinomyctes were examined. menaquinones with seven isoprenoid units (mk-7) were the main quinone type found in representatives of the genus bacillus and in sporolactobacillus inulinus. however, a strain of b. thuringiensis produced mk-8 in addition to mk-7, and strains of b. lentus and b. pantothenticus appeared to produce mk-9 and mk-8, respectively, with no mk-7. in the clos ...1979119033
extraction and partial characterization of a leukotoxin from a plaque-derived gram-negative microorganism.the plaque-derived gram-negative microorganism y4 identified as a member of the genus actinobacillus, was tested for a soluble cytotoxic factor(s). sonication or incubation of viable y4 microorganisms in distilled water or normal human serum resulted in liberation of a soluble material which was cytotoxic in vitro for human polymorphonuclear leukocytes (pmns). the y4 soluble sonic extract was also cytotoxic to human peripheral blood monocytes. however, human lymphocytes, platelets, and fibroblas ...1979113347
serologic study of pasteurella aerogenes sp n.the antigenic attributes of pasteurella aerogenes sp n were serologically compared with species of the genera actinobacillus and pasteurella. examination included the tube-agglutination and double-immunodiffusion techniques. the results indicated the possibility of serologically different strains of p aerogenes. antisera prepared from strains of p aerogenes also reacted well with antigens prepared from yersinia pseudotuberculosis (p pseudotuberculosis) and p pneumotropica.1979112888
actinobacillus seminis infection in sheep in the republic of south africa. iii. growth and cultural characteristics of a. seminis.bacteriological tests were done on a large number of different strains of actinobacillus seminis and also, repeatedly, on the same culture or on different cultures taken periodically from the same donor animal. these tests were also applied to strains of a. seminis representing different serological types, which in turn were compared with strains of brucella ovis. the tests as applied proved that a. seminis strains have defined, morphological, staining, cultural and biochemical properties, altho ...197995214
significance of noncapsular antigens in protection against experimental haemophilus influenzae type b disease: cross-reactivity.a bacterial strain, tentatively identified as an actinobacillus species, was found to asymptomatically colonize the pharynx of some rats and to bear cell wall antigens which cross-react with noncapsular antigens of haemophilus influenzae type b (hib). the cross-reacting antigens appeared to be a heterogeneous mixture with varying molecular size and charge. the antigenic moieties are probably carbohydrate in nature. antisera raised with this strain had both immunochemical and biological (bacteric ...197880382
abscesses of the frontal lobe of the brain secondary to covert dental sepsis.the bacterial species found in pus aspirated from brain abscesses in two patients were typical of those found in dental sepsis. subsequently apical-root abscesses were demonstrated in the upper jaws of both patients. this evidence strongly suggests that these cerebral abscesses were secondary to dental sepsis which could have spread from the teeth to the frontal lobes by several possible antaomical pathways.197879867
[antigenic relationships between pasteurellae and actinobacilli]. 197769357
haemophilus somnus complex: antigenicity and specificity of fractions of haemophilus somnus.five haemophilus somnus type 8025 preparations (whole cell, sonicate, crude polysaccharide, purified polysaccharide, and protein) were produced for studies of their antigenicity in rabbits. bacterial agglutination and passive hemagglutination tests were used to assess the level of antibody produced in rabbits inoculated with the different antigenic preparations. cross-reactions were seen between the antiserums against the h sumnus 8025 antigens and a variety of related and unrelated bovine patho ...197550755
infective endocarditis caused by slow-growing, fastidious, gram-negative bacteria.in a review of endocarditis caused by fastidious, slow-growing gram-negative rods, similarities in the spectrum of disease overshadow differences among cases grouped by specific organisms. cardiobacterium hominis, actinobacillus actinomycetemcomitans and haemophilus species usually seed previously damaged cardiac valves presumably during bacteremia from an upper respiratory site. the clinical presentation resembles that of streptococcus viridans endocarditis and is usually subacute or chronic. d ...1979431400
serological variants of actinobacillus lignieresii in slaughtered cattle. 1979430936
vertebral osteomyelitis due to actinobacillus actinomycetemcomitans. 1979430752
prevention of major dental disorders. symposium held at marabou, sundyberg, sweden, june 16, 1979. discussion. 1979295299
endocarditis caused by actinobacillus actinomycetemcomitans.a case of endocarditis caused by actinobacillus actinomycetemcomitans is described and 18 cases are reviewed. clinical features of endocarditis caused by a actinomycetemcomitans and antibiotic susceptibility are reviewed. because of the relative resistance of a actinomycetemcomitans to penicillin and ampicillin, high doses of either penicillin or ampicillin should be combined with streptomycin or gentamicin for four to six weeks.1979472858
[differentiation of brucella by acrylamide-gel electrophoresis (author's transl)].the strains of brucella (tab. 1) were grown on tryptose-blood-agar at 37 degrees c, and the strains of bordetella, pasteurella and actinobacillus on blood-agar. after 24 or 48 h they were harvested and extracted in phenol-acetic acid-water solution (4:2:1) (1 ml/50 mg bacterial wet weight) at 4 degrees c over 48 h. after centrifugation (8000 x g, 1 h) 2 volumes of the supernatant were mixed with 1 volume of a 40% sucrose solution in 35% acetic acid. different volumes (0.20, 0.15 or 0.10 ml) of t ...1977331758
actinobacillus septicemia in a black swan (cygnus atratus).a species of actinobacillus was isolated in pure culture from the carcass of a captive australian black swan (cygnus atratus) dying of acute septicemia. the gross and microscopic findings are described and the significance of the isolate is discussed.1979501838
medium for selective isolation of fusobacterium nucleatum from human periodontal pockets.a selective medium, cve agar, was developed for the isolation of fusobacterium nucleatum from subgingival plaque of periodontally diseased patients. the medium contained 1.0% trypticase (bbl microbiology systems), 0.5% yeast extract, 0.5% nacl, 0.2% glucose, 0.02% l-tryptophan, 1.5% agar, and 5% defibrinated whole sheep blood. erythromycin and crystal violet were added as the selective inhibitory agents at concentrations of 4 and 5 micrograms/ml, respectively. the medium permitted almost total r ...1979521483
actinobacillus seminis infection in sheep in the republic of south africa. i. identification of the problem.a clinical palpation and semen smear examination of 647 rams submitted to the regional veterinary laboratory during 1967 revealed that 42 (6,5%) of these animals had clinical epididymitis or orchitis, 6 (0,9%) showed other types of genital lesions and 98 (15,1%) suffered from subclinical genital infection. a. seminis and a. seminis-like organisms were isolated from semen specimens of 18 out of 35 rams with clinical epididymitis or orchitis, 25 out of 33 rams with subclinical infection and none o ...1979551360
actinobacillus seminis infection in sheep in the republic of south africa. ii. incidence and geographical distribution.to obtain information on the incidence and distribution of actinobacillus seminis infection in the republic of south africa, a clinical and serological survey was carried out on 409 farms situated in 29 districts. all rams submitted for certification to the regional laboratory from 1/1/69 to 31/1/74 were included in a separate investigation. these particular rams represented different breeds and originated from farms in over 48 districts. examinations were also carried out on all rams on 11 stud ...1979551361
immuno-biological behavior of mallein & its fractions. 1977614188
isolation of actinobacillus suis from a colt. 1978630374
disseminated actinomycosis.a case of pulmonary actinomycosis with dissemination to skin, subcutaneous tissue, and bone is described. the cutaneous lesions were characterized by tender swellings and fluctuant nodules and were the presenting manifestation of the disease. typical sulfur granules were present in the skin and pleural biopsies. actinomyces israelii and its synergistic bacteria actinobacillus actinomycetemcomitans were cultured from skin and pleura. clinical improvement, with resolution of lung and disseminated ...1978635629
isolation of actinobacillus actinomycetemcomitans and haemophilus aphrophilus at auckland hospital.actinobacillus actinomycetemcomitans and haemophilus aphrophilus were each isolated three times at auckland hospital, over a one year period. relevant clinical particulars of the major cases are given, and problems of isolation, identity and treatment discussed.1979289008
actinobacillus actinomycetemcomitans endocarditis.two patients had infective endocarditis due to actinobacillus actinomycetemcomitans. one, a 52-year-old woman with a prosthetic aortic valve, was successfully treated with carbenicillin and gentamicin. the other, a 47-year old man with calcific aortic valve disease, required emergency valvectomy and prosthetic valve replacement and responded to a combination of penicillin and gentamicin.1978647545
determination of serovar of autoagglutinating strain of actinobacillus lignieresii by gel precipitation test. 1979459948
case report. cardiobacterium hominis: review of prior infections and report of endocarditis on a fascia lata prosthetic heart valve.the clinical spectrum of disease caused by cardiobacterium hominis, a small, gram-negative coccobacillus, is little known to physicians. from analysis of a new case of c hominis endocarditis on a fascia lata aortic valve, and from review of all previous reports of infection due to this microorganism, a remarkably consistent clinical picture emerged. c hominis only causes endocarditis, affects middle-aged individuals with structurally abnormal, left-sided cardiac valves, and follows a subacute co ...1978727215
testicular pathology of merino rams.the scrotal contents of 2,281 merino rams of wide age range examined at 3 abattoirs in perth, western australia, showed a 40% prevalence of rams with 1 or more gross lesions. the percentage prevalence of gross lesions found on autopsy were: adhesions 21, testicular atrophy/hypoplasia 14, testicular calcification 13, congenital cyst of the epididymis 6, cryptorchidism 4, chronic epididymitis/scrotal abscesses 2, varicocoele 2, testicular aplasia less than 1, seminoma less than 1. the prevalence o ...1978743044
endocarditis due to actinobacillus actinomycetemcomitans. 19751125627
serological comparison between histophilus ovis, actinobacillus seminis and brucella ovis.the serological relationships between 4 strains of histophilus ovis, the neotype strain of actinobacillus seminis and brucella ovis were examined using a cross-absorption complement-fixation technique. it was found that the 4 strains of h. ovis were serologically homologous and that an incomplete relationship existed between these organisms and a. seminis. anteriserums prepared against one strain of h. ovis and the strain of a. seminis gave a weak, apparently non-specific cross-reaction with br. ...1978743054
a taxonomic study of the genus haemophilus, with the proposal of a new species.a collection of 426 haemophilus strains isolated from people with infectious diseases and from the normal flora of mucous membranes in humans and various animal species was studied in an attempt to revise and improve the taxonomy of the genus haemophilus. the examinations included the determination of a number of biochemical and physiological properties, of which several had not previously been applied to the taxonomy of haemophili. the resulting data reavealed many hitherto unrecognized charact ...1976772168
the effects of fluoride on the percentage bacterial composition of dental plaque, on caries incidence, and on the in vitro growth of streptococcus mutans, actinomyces viscosus, and actinobacillus sp.administration of 250 mug/ml naf in drinking water to rats reduced both caries incidence (p less than 0.001) and the percentage of s mutans (0.01 greater than p greater than 0.001) although the percentage of actinobacillus sp. was increased (p less than 0.001). an actinobacillus sp. and s mutans fa1 both proliferated in naf broth only if the naf greater than 10 mug/ml, which was associated with the inhibition of acid production.1977272378
infection with actinobacillus suis in pigs. 1978696543
initial colonization of teeth in monkeys as related to diet.the initial phases of plaque development on nonretentive tooth surfaces were studied bacteriologically in macaca irus monkeys fed by stomach tube and provided with various oral supplements. except for the oral implantation of streptococcus mutans in some of the animals, the oral flora was not changed prior to the studies. dental plaque was allowed to develop on initially cleaned tooth surfaces for 3 to 5 h. plaque samples were collected and cultured on a number of selective and nonselective agar ...1976825462
isolation of a hemolytic actinobacillus from waterfowl.a previously undescribed species of hemolytic actinobacillus was isolated from six waterfowl, three with periocular serous exudation and two with airsacculitis and bronchopneumonia. cultural and biochemical characteristics were compared with those of actinobacillus and pasteurella spp, using a numerical technique.1977839627
[pathogenic role of various pleomorphic gram-negative bacteria]. 1976796897
actinobacillus suis in the horse. 19761265987
subacute bacterial endocarditis due to actinobacillus actinomycetemcomitans. report of a case with a review of the literature.a case of subacute bacterial endocarditis due to actinobacillus actinomycetemcomitans is reported. the patient was successfully treated first by a combination of gentamicin and ampicillin and then, because of severe allergic reactions, ampicillin was replaced by co-trimoxazole; symptoms did not recur and blood cultures remained sterile. a synoptic table is presented of 19 reported cases of infection caused by a. actinomycetemcomitans not connected with actinomycosis, with particular regard to th ...1977915011
haemophilus aphrophilus cholecystitis.cultures from the gallbladder and blood of a 60-year-old man with acute cholecystitis grew haemophilus aphrophilus. this organism, an unusual isolate in clinical specimens, is most frequently seen in patients with either endocarditis or brain abscesses. haemophilus aphrophilus may be distinguished from eikenella corrodens and actinobacillus actinomycetemcomitans on the basis of colonial morphology and the biochemical tests for oxidase and catalase production and fermentation of lactose, sucrose, ...1978637050
bovine nasal granuloma: a review.the literature on granulomatous nasal diseases of cattle is reviewed, with emphasis on nasal granuloma, a disease of unknown cause which is enzootic in australian dairy cattle. it is concluded that on available evidence the disease is most probably a form of allergic rhinitis.1976938354
pneumonia associated with salmonella choleraesuis infection in swine: 99 cases (1987-1990).salmonella choleraesuis was isolated in pure or mixed bacterial cultures from 153 swine necropsied between jan 1, 1987 and dec 31, 1990. pneumonia was seen in 99 of 109 swine from which this bacterium was isolated in the absence of other pathogenic bacteria. pneumonia was seen more frequently than hepatitis, splenomegaly, or colitis. pleuropneumonia that was grossly indistinguishable from the pleuropneumonia associated with actinobacillus pleuropneumoniae was seen in 29 of 99 swine from which s ...19921289347
serum haptoglobin concentration in swine naturally or experimentally infected with actinobacillus pleuropneumoniae.serum haptoglobin (hp) concentrations were measured in swine that were naturally or experimentally infected with actinobacillus pleuropneumoniae. in swine from a specific-pathogen-free herd, mean serum concentration of hp (+/- sd) was 5.79 +/- 1.06 mg of cyanmethemoglobin-binding capacity (chbc)/dl. serum hp concentrations in paired samples were measured at 7-day intervals in 40 swine randomly selected from a conventional herd that was experiencing an acute episode of pneumonia and deaths caused ...19921293115
an outbreak of diphtheria in boergoat kids.during an outbreak of diphtheria or ulcerative stomatitis in young boergoat kids fusobacterium necrophorum was consistently isolated under anaerobic cultural conditions from material taken from the edges of the ulcerative lesions from all of the cases examined. corynebacterium pyogenes, staphylococcus aureus, actinobacillus lignieresi, moraxella spp. and lactobacillus spp. were also isolated anaerobically and/or aerobically. the typical symptoms and lesions were confirmed to the mouth, tongue an ...1976940095
butandioldehydrogenase in eikenella corrodens and related bacteria.the butandioldehydrogenase was examined in 153 strains of eikenella, moraxella, acinetobacter, agrobacterium, haemophilus, actinobacillus, pasteurella, cardiobacterium and "tm-1" of hollis et al. this enzyme has been proved to be useful in the differentiation of this group of bacteria.1976797181
actinobacillus actinomycetemcomitans endocarditis in a patient with a prosthetic aortic valve.bacterial endocarditis caused by actinobacillus actinomycetemcomitans is a rare disease. a 48-year-old man who had a starr-edwards aortic valve prosthesis inserted in 1972 was admitted for evaluation of confusion, headaches, anorexia, weight loss, diarrhea and weakness. six blood cultures yielded gram-negative organisms which were subsequently identified as a. actinomycetemcomitans. treatment with ampicillin and gentamicin resulted in cure which has been maintained after an observation period of ...1977881258
bronchopneumonia in calves in western australia associated with actinobacillus actinoides. 1976985228
adjuvant properties of propionibacterium avidum kp-40 in vaccination against endemic viral and bacterial infections. ii. swine immunized with inactivated haemophilus pleuropneumoniae vaccine and experimentally infected with different virulent serotypes of h. pleuropneumoniae.forty 3-month old swine were treated with immunomodulating propionibacterium avidum kp-40 (pa) and/or vaccinated with a formalin-inactivated mixture of serotypes 1, 3, 5 and 9 of haemophilus pleuropneumoniae (pleurovac). three weeks after revaccination all animals were inoculated with viable single serotypes of haemophilus pleuropneumoniae. the igg antibodies induced by vaccination agglutinated all serotypes of haemophilus pleuropneumoniae, except for serotype 5. antibody titers were not influen ...19921303696
the isolation of actinobacillus equuli from equine abortion. 1976988818
a comparison of various haemophilus somnus strains.sixty-eight haemophilus somnus strains isolated from the bovine in canada and the u.s.a. were compared. in media enriched with 5% ovine serum, 5% bovine serum and 10% yeast extract, h. somnus fermented glucose, levulose, maltose, mannitol, mannose, sorbitol, trehalose and xylose, but failed to ferment arabinose, dulcitol, galactose, inositol, lactose, raffinose, rhamnose, salicin and sucrose. the organisms acidified litmus milk, produced cytochrome oxidase, indole and hydrogen sulfide (h(2)s) an ...1977922555
foal septicemia (a case report). 19761049467
haemophili and related bacteria in the human oral cavity. 19751066093
cardiobacterium homonis endocarditis. characterization of the unusual organisms and review of the literature.a case of subacute bacterial endocarditis in which cardiobacterium hominis was isolated from the blood of a 55-year old woman who had rheumatic heart disease is reported. a survey of the literature revealed very few reports in which this organism has been implicated in human lesions. the colonies grew after 48 hours of incubation in a candle jar. they were small, convex, nonhemolytic, and oxidase-positive. the indole reaction was positive, the catalase and nitrate reactions were negative, and ac ...19751089355
evaluation of oral bacteria as risk indicators for periodontitis in older adults.the prevalence of people and sites with attachment loss, pocket depth, actinobacillus actinomycetemcomitans, prevotella intermedia, and porphyromonas gingivalis are described for a random sample of 366 black and 297 white community-dwelling adults, aged 65 or over, residing in five counties in north carolina. in addition, relationships between sites harboring these microorganisms and loss of attachment (la) and pocket depth (pd) are presented in a manner that considers the lack of independence o ...19921313107
association of the rtx proteins of actinobacillus pleuropneumoniae with hemolytic, camp, and neutrophil-cytotoxic activities.the immunoglobulin g from a monospecific rabbit antiserum to the 110-kda rtx hemolysin of actinobacillus pleuropneumoniae serotype 1 was used to determine that the related rtx proteins in isolates from serotypes 2 to 12 were also responsible for the hemolytic, camp, and neutrophil-cytotoxic activities produced by this bacterium. these proteins share common neutralizing epitopes.19921314227
[discovery of glanders bacillus]. 19751102281
variation in seropositivity for some respiratory disease agents in finishing pigs: epidemiological studies on some health parameters and farm and management conditions in the herds.the relationship between the extent of seropositivity for aujeszky's disease virus (adv), actinobacillus pleuropneumoniae (app.) serotype 2 and porcine influenza (pi) viruses serotype h1n1 and h3n2 in pigs on the one hand and the health status of the pigs and some farm and management conditions in the herds on the other hand was studied in 45 pig finishing herds, all members of one integration group. the health status was assessed by the extent of clinical signs, the use of veterinary drugs and ...19921315466
actinobacilli in domestic fowl.reports on haemolytic rods from salpingitis in hens and from organs of died chicks may be found since the year 1950 (kjos-hanssen). correct systematic classification on these microorganisms is still lacked because not all relations to the nearest pasteurellae were known as well as the clear differences in the pasteurella-actinobacillus group. the authors have isolated 34 suspected strains from 14 localities; 25 strains were from salpingitis or internal organs of died fowl inclusively chicks, and ...19761015017
sequential degradation of keratan sulfate by bacterial enzymes and purification of a sulfatase in the enzymatic system.pseudomonas sp. ifo-13309 and actinobacillus sp. ifo-13310, bacteria which exhibit a symbiotic growth in a medium containing keratin sulfate as a sole carbon source, were isolated from soil. extracts of these organisms were shown to contain an endoglycosidase, a sulfatase, and exo-beta-d-galactosidase, and an exo-beta-d-n-acetylglucosaminidase which, together, catalyze an extensive cleavage of corneal keratan sulfate. the pseudomonas extract was particularly rich in the endoglycosidase activity ...19751112796
[antibiotic sensitivity of the causative agent of glanders].sensitivity of the glanders causative agent to 20 antibiotics representing different groups is described. the results of the in vitro studies showed that most of the antibiotics were not active against the glanders causative agent, except for polymyxin m, levomycetin and their combination. some relative activity was observed with neomycin. the "indicators" method used by the authors for determination of the m. mallei sensitivity to the antibiotics allowed the shortening of the time of the test b ...19751119794
porcine abortion caused by actinobacillus equuli.actinobacillus equuli was isolated from an aborted porcine fetus. fetal lesions of peracute embolic septicemia were similar to those seen in septicemic actinobacillosis of older swine and other species. this case represented an individual rather than a herd abortion problem.1976965291
characterization of atypical actinobacillus lignieresii isolated from ducks with salpingitis and peritonitis.actinobacillosis in a disease of world-wide occurrence among cattle and sheep. the present paper records the recovery from ducks with purulent salpingitis of an organism having cultural, morphological and biochemical properties very closely related to actinobacillus lignieresii.19751161454
an unusual epizootic of actinobacillosis in dairy heifers.actinobacillosis developed in a group of 52 holstein-friesian replacement heifers. they were confined to 4 pens in a barn. cervical abscesses were first observed by the owner in 1 heifer a month after the heifers were fed chopped haylage that was particularly dry, tough, and stemmy. during the weeks that followed, morbidity reached 73% in heifers given the feed. calves up to 4 months old were not given the haylage and did not develop the disease. standard bacteriologic methods were used to ident ...19751168181
cerebral actinomycotic granuloma.a rare case of primary cerebral actinomycosis is presented. pathologically the most important finding is represented by two types of lesions occurring in the same granulomatous mass without abscess formation. the possibility of an associated infection by actinomyces israelii and actinobacillus actinomycetemcomitans or lignieresi is discussed.19751235011
actinobacillus suis infections in alberta swine, 1973--75: pathology and bacteriology. 1976974978
development and characterization of porphyromonas gingivalis-specific rat t-cell clones.porphyromonas gingivalis has been implicated as a major pathogen in periodontitis. to determine the role of t cells in the regulation of this disease, a method was developed for the generation and characterization of rat t-cell clones with antigen specificity to p. gingivalis whole cells. the clones studied so far demonstrated a t-helper (th) phenotype w3/13+, w3/25+, ox8- and ox22-. these t-cell clones proliferated in vitro in response to p. gingivalis, but not to other bacteria (prevotella int ...19921281976
rapid identification of actinobacillus actinomycetemcomitans based on analysis of 23s ribosomal rna.actinobacillus actinomycetemcomitans is a key microorganism in the pathogenesis of several different forms of periodontal diseases. identification of this bacterium from clinical specimens may often be complicated by the fact that the colony morphology on tsbv selective medium closely resembles that of haemophilus aphrophilus and a key differentiating characteristic, catalase reaction, may be variable. recent genetic studies have shown that the 23s ribosomal rna molecule is split into two smalle ...19921284398
fermentation reactions of actinobacillus and pasteurella in commercial media.the applicability, reliability and accuracy of various carbohydrate media in the determination of fermentation reactions of 16 pasteurella and actinobacillus isolates were investigated. laboratory prepared and commercially prepared carbohydrate media were inoculated with known test organisms and results were compared with those obtained at the center for disease control (cdc). only two of the 15 media tested reproduced more than 90 per cent of the reactions obtained at cdc. significant differenc ...19751155487
reactive antigens of the periodontopathic bacterium. actinobacillus actinomycetemcomitans. 19921295343
immunosuppressive effect induced by actinobacillus actinomycetemcomitans: effect on immunoglobulin production and lymphokine synthesis.the soluble sonicated extract (se) from actinobacillus actinomycetemcomitans inhibited primary t cell-dependent antibody responses in vivo. the production of igg and igm to sheep red blood cells (srbc) was depressed when mice were treated with high concentrations of se plus srbc. preinjection of se 3 days prior to srbc completely inhibited igg production. se plus srbc-primed mice showed markedly depressed cd4/cd8 ratios relative to phosphate-buffered saline plus srbc- or srbc-immunized mice. se- ...19921299800
evaluation of the e test for antimicrobial susceptibility testing of actinobacillus actinomycetemcomitans.the e test was compared with an agar dilution method for antimicrobial susceptibility testing of actinobacillus actinomycetemcomitans on mueller-hinton haemophilus test medium. eighty recent isolates of a. actinomycetemcomitans from 40 subjects and 3 reference strains were studied. excellent agreement was obtained between the e test and the agar dilution test for benzylpenicillin (98.8%), ampicillin (97.5%), cefaclor (100%), cefuroxime (100%), tetracycline hydrochloride (100%) and ciprofloxacin ...19921299801
rapid identification of gram-negative rods using a three-tube method combined with a dichotomic key.a three-tube method combined with a dichotomic key is presented which will identify virtually all enterobacteriaceae as well as a number of other frequently encountered gram-negative rods at a genus or species level within 20 hours following the primary isolation. the method is shown to be reliable and simple, saving processing time and material.19751106114
the effect of 3 mouthrinses on plaque and gingivitis development.the aim of this study was to evaluate the effect of 3 mouthrinses, listerine antiseptic (thymol), peridex (chlorhexidine), perimed (povidone iodine and hydrogen peroxide), and a placebo (water) on the development of dental plaque and gingivitis, when used as the only oral hygiene procedure for 14 days. 71 subjects were entered into a randomized, double-blind study. at the baseline examination, papillary bleeding score (pbs), and plaque index (pi) were registered, after which subjects received su ...19921310096
synthesis and structure-activity relationships of 7-diazabicycloalkylquinolones, including danofloxacin, a new quinolone antibacterial agent for veterinary medicine.a series of novel 6-fluoro-7-diazabicycloalkylquinolonecarboxylic acids substituted with various c8 (h, f, cl, n) and n1 (ethyl, cyclopropyl, vinyl, 2-fluoroethyl, 4-fluorophenyl, 2,4-difluorophenyl) substituents, as well as, 9-fluoro-10-diazabicycloalkylpyridobenzoxazinecarboxylic acids, were prepared and evaluated for antibacterial activity against a range of important veterinary pathogenic bacteria. the diazabicycloalkyl side chains investigated at the 7-position (benzoxazine 10-position) inc ...19921311762
gingival crevicular fluid concentration and side effects of minocycline: a comparison of two dose regimens.the purpose of this study was to conduct a direct comparison of two dose regimens of minocycline to determine 1) whether they achieved crevicular fluid concentrations in a therapeutic range; and 2) the frequency of side effects. in a double-blind design, 30 patients divided into 2 groups were given either 100 mg minocycline or 200 mg minocycline per day for an 8-day period. the concentration of minocycline in the gingival clevicular fluid (gcf) at 8 days was 4.77 micrograms/ml for the 100 mg a d ...19921313100
microbiological and clinical results of metronidazole plus amoxicillin therapy in actinobacillus actinomycetemcomitans-associated periodontitis.we report on the microbiological and clinical effects of mechanical debridement in combination with metronidazole plus amoxicillin therapy in 118 patients with actinobacillus actinomycetemcomitans-associated periodontitis. patients were categorized into 3 groups: 28 had localized periodontitis; 50 had generalized periodontitis, and 40 had refractory periodontitis. after initial treatment and metronidazole plus amoxicillin therapy 114 of 118 (96.6%) patients had no detectable a. actinomycetemcomi ...19921313103
comparative clinical and microbiological effects of topical subgingival application of metronidazole 25% dental gel and scaling in the treatment of adult periodontitis.the aim of the study was to compare the clinical and microbiological effects of topical application of a metronidazole gel and a single session of subgingival scaling in the treatment of adult periodontitis. an open, randomized controlled clinical study design was employed. each of 24 subjects received the 2 treatments simultaneously each in 2 randomly selected quadrants of the dentition. the metronidazole, 25% gel was applied subgingivally on days 0 and 7. scaling was carried out in one quadran ...19921332988
humoral antibody responses in periodontal disease.several forms of periodontal disease are considered to be infectious diseases with associated specific bacteria. this study examined the humoral antibody levels as assayed by elisa to actinobacillus actinomycetemcomitans, porphyromonas gingivalis, and prevotella intermedia in adult periodontitis (ap), localized juvenile periodontitis (ljp), rapidly progressive periodontitis (rpp), and in periodontally healthy subjects (hs). sixty-two of the 64 (96.9%) patients had significantly elevated antibody ...19921313106
microbiology of healthy and diseased periodontal sites in poorly controlled insulin dependent diabetics.a group of poorly-controlled insulin dependent diabetes mellitus (iddm) patients were examined in a cross-sectional design for total microbial levels, microbial incidence, and the percent levels of selected periodontal microorganisms. these organisms were selected on the basis of prior reports that associated them with either periodontal disease or health. one periodontally-healthy and one periodontally-diseased site were examined in each iddm patient. increased levels of the periodontal pathoge ...19921315389
the occurrence of periodontitis-related microorganisms in relation to titanium implants.the peri-implant space was examined for the presence of periodontitis-related microorganisms in 19 patients. all patients had been fitted with osseointegrated titanium implants which were clinically sound at the time of examination and all had been prescribed daily 0.2% chlorhexidine mouthrinse. in 17 patients, two contralateral fixtures in patients were selected, the remaining 2 patients had only one fixture, and associated mucosal clinical variables assessed for plaque accumulation, gingival i ...19921317427
the use of dna probes to examine the distribution of subgingival species in subjects with different levels of periodontal destruction.the present investigation examined the distribution of 14 subgingival species at a total of 2299 sites in 90 subjects with different levels of periodontal destruction. subgingival plaque samples taken from the mesial aspect of each tooth were anaerobically dispersed, diluted and plated on non selective media. after anaerobic incubation, colonies were lifted to nylon filters and specific species detected using digoxygenin-labeled whole chromosomal dna probes. the mean total viable count for all s ...19921318331
histophilus ovis infection in sheep in western victoria.organisms resembling histophilus ovis were isolated from sheep in western victoria in association with synovitis, septicaemia and/or abscessation in 2 to 8 week old lambs. histopathological lesions in these lambs were indicative of bacterial embolism with thrombosis. similar organisms were also isolated from sheep in 2 flocks with a high neonatal mortality rate. these isolations were from vaginal swabs from the ewes, placentas and from one lamb which had meningitis, ependymitis, choroid plexitis ...1977869799
humoral igg antibodies to oral microbiota in a population at risk for root-surface caries.mutans streptococci have been strongly implicated in the initiation of dental caries on coronal surfaces. their role in development of root-surface caries is less clear. the etiologic agents of both types of dental caries are likely to elicit systemic immune responses. the objective of the present study, therefore, was to study the association of clinical variables of disease with humoral igg antibodies to nine oral micro-organisms in 314 adult subjects, aged 45-65 years, who were at risk for ro ...19921321176
subgingival temperature (iii). relation to microbial counts.the present investigation examined the relationship of selected bacterial species and subgingival temperature. 35 subjects were measured at 6 sites per tooth for clinical parameters and subgingival temperature. measurements were repeated for 21 subjects at 2 month intervals providing a total of 66 subjects visits. at each visit, subgingival plaque samples were taken from the mesial aspect of each tooth and anaerobically dispersed, diluted and plated on non-selective media. after anaerobic incuba ...19921321846
[the value of using serum specific antibody in differential diagnosis of periodontitis].in the present study, serum anti-bacteroides gingivalis (bg) and anti-actinobacillus actinomycetemcomitans (aa) antibody titers in rpp, ap patients and healthy subjects were determined by elisa. discriminant analysis for differential diagnosis of rpp, ap and healthy subjects was performed using clinical measurements (pd, al, pii, bi) and serum antibody levels as combined parameters. the results showed significantly different serum antibody levels among the three examined groups. the results also ...19921338038
comparison of the cytolysin ii genetic determinants of actinobacillus pleuropneumoniae serotypes.cytolysins (cly) i, ii, and iii are toxins secreted by actinobacillus pleuropneumoniae. these toxins are thought to play an important role in the pathogenesis of porcine pleuropneumonia. clyi and clyii are rtx toxins and in general these toxins are encoded by operons consisting of four genes, c, a, b, and d. our group recently cloned the c and a genes of the clyii operon (clyiica) of serotype 9. we found that this clyii operon is truncated and lacked intact b and d genes (clyiibd). b and d genes ...19921339412
antibacterial activity of some triclosan-containing toothpastes and their ingredients.the antibacterial activity of 4 triclosan-containing toothpastes was compared to a conventional fluoride dentifrice and triclosan and sodium lauryl sulphate (sls), both singly and in combination. a panel of 17 bacteria was tested by an agar dilution method. at concentrations typical of those found in toothpastes, triclosan and sls displayed approximately equal antibacterial activity. a paste containing triclosan and zinc citrate appeared more active than the other triclosan pastes which, in gene ...19921345321
e-test: a new technique for antimicrobial susceptibility testing for periodontal microorganisms.the purpose of the study was to validate the epsilometer test (e-test) method for antimicrobial susceptibility testing of selected periodontopathic microorganisms using the agar dilution method as a standard. the e-test has been developed to provide a direct quantification of antimicrobial susceptibility of microorganisms. the device consists of a predefined, continuous, and exponential gradient of antibiotic concentrations immobilized along a rectangular plastic test strip. after 48 hours incub ...19921324301
development of a rapid latex agglutination test for periodontal pathogens.the studies reported here describe the development, characterization, and initial application of latex agglutination assays for periodontal pathogens. latex reagents were prepared by sensitization of latex microspheres with rabbit igg antibodies to either actinobacillus actinomycetemcomitans, porphyromonas gingivalis, or prevotella intermedia. the protein concentration utilized for sensitization and microsphere size were optimized. one reagent was prepared to a. actinomycetemcomitans and a secon ...19921324302
isolation of actinobacillus lignieresi from a epidural abscess in a horse with progressive paralysis. 19761245450
Displaying items 1 - 100 of 4767