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plague in rhodesia. 19751095207
yersinia pestis: correlation of ultrastructures and immunological status.ultrastructural identification and localization of the fraction 1 "envelope" antigen in the plague bacillus yersinia pestis were the primary objectives of this brief study. the antigenicity of extra-cellular material between the bacilli in undisturbed cultured colonies and that of the pathogen per se were measured and correlated by means of the semi quantitative complement fixation method after incubation for 72 h at 37 c. when the amount of extracellular substance in wild-type t1 (virulent) bac ...19751095487
restriction of dna in yersinia enterocolitica detected by recipient ability for a derepressed r factor from escherichia coli.a derepressed r factor, ry2drd2, was transferred at a frequency of 5x10minus 3 between two strains of yersinia enterocolitica mated on a membrane. under the same conditions transfer of this r factor from escherichia coli to y. enterocolitica was observed at a frequency of only 7-7x10minus 6. this frequency was greatly increased when the recipient strain was heat-treated before mating. heat exposure for optimum fertility was 50 to 52 degrees c for a period of 2 to 3 min. mutants of y. enterocolit ...19751095683
[yersinia pseudotuberculosis and yersinia enterocolitica infections in patients with unclear acute abdominal syndromes]. 19751096098
[isolation of yersinia enterocolitica in acute ileitis].2246 stool specimens were specifically testet for yersinia enterocolitica during 1973/74. in one case it was possible to isolate a strain of yersinia enterocolitica (0-group i of knapp/serotype 3 of winblad) from the feces of a patient suffering of acute ileitis. a high agglutinine-titer was serologically detected against a bacterial suspension of the isolated strain as well as of a reference strain (serotype 3 of winblad). the antibody-titer was 1 : 3200 by the first examination and dropped to ...19751097881
common enterobacterial antigen in yersinia enterocolitica.production of the common enterobacterial antigen (ca) by strains of yersinia enterocolitica (y.e.) serotypes 3 and 9 (winblad), by strains of 5 different y.e. serogroups (wauters) and various other bacteria was examined. antibody against ca was raised by immunization of rabbits with e. coli o 14. extract prepared from s. typhimurium was used for the sensitization of sheep erythrocytes with ca. absorption and haemagglutination inhibition experiments showed that ca could be detected in heat extrac ...19751098394
[transmission of drug-resistance through conjugation in yersinia enterocolitica and yersinia pseudotuberculosis. (ii). with special reference to streptomycin resistant strains isolated from men and domestic animals (author's transl)].seven strains of y. enterocolitica, of which 2 strains being resistant to sm, tc and sa, 2 to sm and sa 3 to sm, and 3 strains of y. pseudotuberculosis resistant to sm have been isolated from men and domestic animals. tests were carried out with these 10 isolates for transfer of the drug resistance by bacterial conjugation, and evidence was obtained for transfer of resistance from 1 sm-resistant y. enterocolitica and 2 y. pseudotuberculosis strains to the sensitive e. coli k-12. moreover, second ...19751099269
[bacteria of the yersinia genus in human pathology]. 19751101314
[study of the mechanisms of levomycetin inactivation by the palgue causative agent and escherichia coli with episomal and chromosomal resistance. the enzymatic acetylation of levomycetin].one of the mechanisms of levomycetin inactivation, i.e. enzymatic acetylation of the plague causative agent and coli bacteria with chromosomic and episomic type of resistance was studied. it was shown that resistance to levomycetin in the recombinants of the plague microbe and coli bacteria stipulated by one and the same r-factor was associated with their capacity for the antibiotic inactivation mainly with the help of levomycetinacetyltransferase. at the same time the enzyme activity in the mut ...19751101811
[enteral yersiniosis. mesenteric lymphadenitis]. 19751102891
[role of vegetables in the epidemiology of far eastern scarlatiniform fever]. 19751103453
[clinical aspects of pseudotuberculosis]. 19751103463
siderochrome production by yersinia pestis and its relation to virulence.p+ plague strains contained more siderochrome-producing organisms than p-. siderochrome enhanced the mouse virulence of an f1+vw+p1+p-pu+ strains, inhibited p1 activity, and could be assayed by a paper disk titration method.19751104486
[successful streptomycin therapy of yersinia pseudotuberculosis and acinobacter iwoffii infection]. 19751105300
isolation of yersinia enterocolitica from swine.data pertaining to 20 strains of yensinia enterocolitica isolated from the cecal content of swine slaughtered at toronto abattoirs are presented. fifteen of 20 cultures belonged to the two predominant human serotypes in ontario (i.e., serotype o:3 and o:5,27.) seven cultures of y. enterocolitica o:3 belonged to the "canadian" human phage type 9b. these findings are further proof that swine are reservoirs for y. enterocolitica human infection. seventeen y. enterocolitica cultures were isolated by ...19751107350
clinical isolation of yersinia enterocolitica: cold temperature enrichment.a cold-temperature enrichment procedure was used to isolate yersinia enterocolitica serotype 6 from a clinical stool specimen. the use of conventional laboratory media and enrichment procedures failed to isolate this organism.19751107352
the phylogenetic status of pasteurella pestis.yersinia pestis has been characterized in terms of fingerprints of digests (pancreatic and/or t1 ribonuclease) of its 16s and 5s ribosomal rnas. these show clearly that y. pestis is a member of the enterobacteriaceae and suggest that within the family it is most closely related to serratia and/or proteus.19751107566
selective culturing of yersinia enterocolitica at a low temperature.stool specimens from patients with suspected yersinia enterocolitica (y. ent.) infection were cultured at +4 degrees c in a nutrient broth for 5 days and at the same time the same stool specimens were cultured by the routine method of the laboratory. the routine method gave 34 y. ent. isolations. selective culturing at +4 degrees c succeeded in isolation of the same 34 y. ent. strains but also 15 further strains or a 44% increase in yield. serial dilutions in broth of 34 strains of y. ent., 7 st ...19751108175
[interaction of the causative agent of pseudotuberculosis with the peritoneal macrophages from an immune and a nonimmune organism].the role of phagocytosis in experimental pseudotuberculosis was demonstrated in vivo and in vitro. virulent y. pseudotuberculosis strain caused the death of the majority of the cells, whereas the weakly-virulent ones--degenerative changes and the death of but of few of them. the capacity of the causative agents of pseudotuberculosis to survive and to reproduce within the cells could be regarded as one of the significant factors of virulence of these microbes. the maximal immunizing effect was ob ...19751108525
polyarthritis associated with yersinia enterocolitica infection. 19751111133
[morphological and histochemical changes in the flea x. cheopis roths. infected with plaque bacilli]. 19751113714
pathogenecity of yersinia enterocolitica for mice.a laboratory infection of yersinia enterocolitica in mice which closely resembles the naturally acquired human infection is described intravenous inoculation of mice with small numbers of y. enterocolitica gives rise to a systemic, pyogenic infection involving primarily the spleen, liver, and lungs. massive neutrophil infiltration of these organs occurs early in the infection, eventually leading to large abscesses and pulmonary consolidation. mice infected intragastrically show neutophil infiltr ...19751116874
generalized yersinia enterocolitica infection.the clinical course of generalized yersinia enterocolitica infection in 13 patients was observed. two syndromes were apparent; seven patients had an acute septicemic picture, whereas the rest had a subacute localizing infection that usually produced hepatic or splenic abscesses. the latter form often resembled amebic hepatitis clinically, and five of the six patients died despite antibiotic treatment. the acute septicemic form of the disease resembled systemic salmonellosis, and most cases respo ...19751117199
yersinia enterocolitica arthritis.human infections with yersinia were first recognized and reported in upper new york state almost 40 years ago. recently, there have been increasing numbers of reports from scandinavia of episodes of polyarthritis associated with yersinia infections. a 6-month-old girl from upstate new york had a fever of 40 c for two weeks and green watery diarrhea, and irritability was noted when she was handled. an evanescent rash was most apparent at times of temperature elevations. her mother and father had ...19751118210
editorial: polyarthritis and yersinia enterocolitica infection. 19751125556
letter: furuncle caused by yersinia enterocolitica. 19751125902
[yersinia enterocolitica endemic in tournaisis]. 19751134170
[the clinical significance of yersiniosis. i. results from 3 years of systematic studies on yersinia enterocolitica infections in the copenhagen area]. 19751135958
[the clinical significance of yersiniosis. ii. epidemiological studies on yersinia enterocolitica infections and results of the studies]. 19751135959
[the genus yersinia, with special reference to y. enterocolitica. apropos of 2 cases of human infection]. 19751144850
case report: fatal yersinia enterocolitica septicaemia.yersinia enterocolitica type 3 was isolated in blood cultures from a previously healthy 81-year-old woman with fever. a high agglutinin titre against this organism was demonstrated in the patient's serum. antibiotic therapy was given according to sensitivity tests but the outcome was fatal due to uraemia.19751145138
case report: septicaemia due to yersinia enterocolitica in a non-compromised host.a case of septicaemia due to yersinia enterocolitica serotype 3, biotype 4, in a non-compromised host is described. the patient showed severe signs of gram-negative septicaemia. treatment with sulphamethoxazole-trimethoprim (bactrim) was unsuccessful in spite of full sensitivity, bactericidal and synergistic effects in vitro. tetracycline gave full restitution.19751145139
letter: cryptic infection of rats with non-encapsulated variants of yersinia pestis. 19751145712
on the sugar content of the lipopolysaccharides of the various strains known as yersinia enterocolitica.with a single exception among 11 strains, each strain of y. enterocolitica representing one of the six o-groups possesses, as judged by the sugar composition of its lipopolysaccharides, a particular chemotype. all 14 of the strains examined possessed glucosamine, kdo, two heptoses and glucose. in the most complicated chemotype 10 sugars were demonstrable. of three y. enterocolitica strains not included in the 6 o-groups, two had the same chemotype as the representatives of the o-groups iv and vi ...19751146443
separation of phenylalanine transport events by using selective inhibitors, and identification of a specific uncoupler activity in yersinia pestis.phenylalanine transport in yersinia pestis tjw was differentially inhibited by sulfhydryl blocking reagents, uncoupling agents, and respiratory inhibitors. kinetic studies with potassium cyanide and sodium azide showed that these compounds have no immediate effect on the initial rate of phenylalanine transport, but have an immediate and severe inhibitory effect on the rate of oxygen uptake. identical studies with p-chloromercuribenzoate (pcmb) and 2,4-dinitrophenol (dnp) showed that these compou ...19751150617
yersinia enterocolitis. 19751151584
serological studies on human plague in southern africa. part i. plague antibody levels in a population during a quiescent and a subsequent active period in an endemic region.yersinia pestis fraction l passive haemagglutination studies on human sera obtained randomly during a plague epidemic showed a 10-fold increase in occurrence of antibodies compared with the results obtained on sera from the same population 11 months earlier during a quiescent phase. the pre-epidemic population antibody rate was lower than that in a comparable population tested simultaneously in another endemic region, where a recrudescence of plague was not experienced during the following year. ...19751154171
[experience from a 30-year study of the stability of the properties of the plague vaccine strain ev in the ussr]. 19751154937
yersinia enterocolitica in small rodents from norway, sweden and finland.the purpose of the present investigation was to study the occurrence of yersinia enterocolitica (y.e.) among small rodents and shrews (soricidae) from norway, sweden and finland. during a period of one year beginning in the autumn of 1973, animals from seven localities were examined. twenty-four strains of y.e. were isolated from 551 small rodents. isolations were made from six of the seven localities and from six of the nine small rodent species examined. pooled faeces samples from 397 animals ...19751155120
experience with yersinia enterocolitica at the hospital for sick children, 1972-74.thirty-six cases of yersinia enterocolitica infection were detected in the years 1972-74. the form of the illness in young children was acute gastroenteritis and in older children "appendicular syndrome". improved isolation and identification techniques have increased the laboratory recognition of this enteric pathogen.19751156981
[yersinosis]. 19751158235
[terminal ileitis caused by yersinia enterocolitica]. 19751161590
rheumatic fever and yersinia arthritis. criteria and diagnostic problems in a changing disease pattern.a study of rheumatic fever (rf) in finland and sweden was carried out by examining (a) the patients with rf in two hospitals in helsinki, finland during the years 1969-72, (b) the case reports of rf patients in uppsals hospital region (uhr) in sweden during the years 1968-69. in helsinki there were 22 and 2n uhr 16 patients with an acceptably certain diagnosis of rf. of the five "major manifestations" according to jones' revised criteria (circulation, 32: 664, 1965), carditis and polyarthritis w ...19751166282
bacterial infection in cows associated with abortion, endometritis and infertility. 19751166712
mass occurrence of yersinia enterocolitica in two establishments of collective care of children.mass occurrence of intestinal disorders caused by yersinia enterocolitica simultaneously in two groups of children of under-school age is reported. the question of the source of infection and the routes of transfer are discussed and the various forms pointed out which y. e. infection may take in under-school children within the framework of an epidemic occurrence in a group of children. the fact is emphasized that the results of serological examination using the method of indirect haemagglutinat ...19751168669
[fertility problems caused by infectious agents pigs in the netherlands(author's transl)].the concept of fertility problems is defined in the introduction and their economic importance in pig breeding are pointed out. the infectious causes of the problem are reviewed. infections with l. tarassovi and with aujezky's virus regularly lead to practically endemic abortions; brucella suis and swine-plague infections do so sporadically. the smedi syndrom is considered. the clinical symptoms, diagnosis, epizootiology, and the therapeutical and prophylactic measures of these infections are di ...19751172635
methionine transport in yersinia pestis.yersinia pestis tjw, an avirulent wild-type strain, requires phenylalanine and methionine for growth. it was of interest to examine and define the methionine transport system because of this requirement. the methionine system showed saturation kinetics with a km for transport of approximately 9 times 10(-7) m. after 8 s of methionine transport, essentially all of the methionine label appeared in s-adenosyl-l-methionine (sam) as detected in ethanol extracts. small amounts of free methionine was d ...19751176434
motility-indole-lysine medium for presumptive identification of enteric pathogens of enterobacteriaceae.detection of lysine decarboxylase activity is a useful supplement to reactions on triple sugar-iron (tsi) and urea agars in the initial examination of suspected pathogenic isolates from fecal cultures. owing to the added value of motility and indole production in the differentiation of enteric pathogens, we prepared and evaluated a motility-indole-lysine (mil) medium. the following 890 organisms were tested: 264 shigella, 2 edwardsiella, 182 salmonella enteritidis, 235 s. typhi, 3 arizona, 32 ye ...19751176632
arthritis associated with yersinia enterocolitica infections.74 patients, 42 females, 32 men-all over 10 years of age, with acute arthritis associated with infection with yersinia enterocolitica are presented. the diagnosis was based on serological evidence in all cases (an agglutinin titre of 320 or more), and in 18 of the cases also a positive culture of y. ent. from faeces. the erythrocyte sedimentation rate was very high in most cases. acute enteritis, sometimes with abdominal pain, preceded the acute arthritis with a latent period of about 1-14 days. ...19751179174
[epidemics of yersinia enterocolitica infections]. 19751179383
human serum antibodies against heat-stable antigens from yersinia enterocolitica.human sera, 200 from blood donors and five from patients with infection caused by yersinia enterocolitica serotype 3 (y.e. 3), were tested by indirect haemagglutination for antibodies against antigens from y.e. serotypes 3 and 9. erythrocytes were sensitized using extracts prepared by heating of the bacteria at 100 degrees c for 60 min. all sera tested showed antibody activity against antigen from both y.e. serotypes. in blood donors, the titres ranged from 4 to 512, and in patients from 512 to ...19751180060
plague and the gallium scan: case report.inflammation in the right axillary lymph nodes and the meninges was detected by 67gacitrate scans in an 11-year-old boy with yersinia pestis infection. this case provides another example of 67ga localizing to areas of infection, indicating potential utility in future cases of bubonic plague.19751185264
[similarity of the x-ray picture of enteritis caused by yersinia enterocolitica and regional enteritis]. 19751189249
rheumatic fever in adult patients.a study of rheumatic fever in adult patients (diagnosed according to the jones revised criteria; circulation 36: 664, 1965) was performed by examining 26 patients during the acute phase of the disease, and by re-examining 22 of them from 6 months to 64 months later (mean 33 months). polyarthritis and carditis were the most common major manifestations. 23 patients had polyarthritis and 3 monoarthritis. 18 patients had signs of acute cardiac involvement. carditis appeared to be rather benign: at t ...19751190707
[participation of yersinia in infections in patients treated for acute abdominal diseases]. 19751197093
electrophoretic studies of the yersiniae. 19751200261
polypectate digestion by yersinia.the ability of yersinia to digest polypectate may be of some value in differentiating y. enterocolitica and y. pseudotuberculosis from some of the other fermenting gram-negative bacilli, such as enterobacter agglomerans, with which they can be confused. pectolytic activity in yersinia may also have some teleologic or taxonomic significance about which we do not care to speculate.19751206110
[sensitivity of inbred mice to the causative agent of plague]. 19751210890
[study of the epidemiology of far eastern scarlatina-like fever in the maritime territory. i. contamination of vegetables, root crops and pickled foods with the pseudotuberculosis microbe (yersinia pseudotuberculosis) in foci of the scarlatina-like fever].there was revealed high incidence of contamination with yersinia pseudotuberculosis of vegetables, roots and pickled products (less frequently) in the vegetable store-houses of the majority of the far eastern scarlatina-like fever foci in primorie. contamination of the mentioned food products increased by the spring-beginning of summer seasons; vegetables and roots which are often used raw--onion, carrots, cabbage--displayed the greastest contamination.19751210894
animal model of human disease. yersinia enteritis. animal model: oral yersinia enterocolitica infection of mice. 19751211427
skin manifestations in human yersiniosis.in 1969-1973, acute yersiniosis was diagnosed in 30 cases of erythema nodosum (en), in 6 cases of en and simultaneous erythema multiforme (em), in one case of en and erythema figuratum, in one case of em, and in one case of drug eruption-like exanthema, respectively. during these years, 180 patients with en due to other causes were seen. the most marked difference in the clinical course between yersiniosis and other cases was the duration of the eruption. en nodules in yersinia en faded away in ...19751211852
[appendicular form of intestinal yersiniosis].the authors report twenty three cases of intestinal yerseniosis revealed among 575 patients operated upon for acute appendicitis. the diagnosis was supported bacteriologically and serologically. the disease proceeded with a predominant involvement of the appendicular process. various forms of acute appendicitis were observed. common appendicitis was noted in 6 cases, phlegmonous--in 15, gangrenous--in 2.19751216398
[experimental pathogenicity of "yersinia enterocolitica" for athymic nude mice (author's transl)].amongst the 4,500 strains of our collection of yersinia enterocolitica usually non-pathogenic for laboratory animals, 5 or 6 strains appeared to be naturally pathogenic for mice. using these strains and non-pathogenic strains representing more than 90 per cent of human isolates in the world (biotype 4, serotype 0:3, phagocyte viii; biotype 2, serotype 0:9, phagotype x3), the pathogenicity for cyclophosphamid treated mice and athymic nude mice has been tested. highly pathogenic strains killed con ...19751217786
erythema nodosum from yersinia enterocolitica. 19751220819
[effect of the prolonged contact of a flea population with plague bacteria on the infective activity of vetors].results of the experimental infection of fleas (x. cheopis) with the plague agent after their long (2.5 years, 19 generations) feeding on infected white mice showed no difference in the infection activity of these insects as compared to control ones. the authors question the hypothesis according to which a low frequency of protein-formation in some species of fleas is due to their long contact with the plague agent in the historical past.19751221343
[sensitivity of yersinia enterocolitica to antibiotics].sensitivity of 33 foreign and 10 native strains of y. enterocolitica to tetracycline, aminoglycosides, penicillins, levomycetin and polymyxin was studied. all the strains proved to be resistant to penicillin, oxacillin and ampicillin: they produced penicillinase. the level of resistance to penicillin did not always correlate with penicillin activity. the ability of the native strains to acquire r-factor in vitro from coli bacteria was shown.19751225176
[isolation and properties of several auxotrophic mutants of a highly virulent strain of the plague microbe].2432 stable auxotrophic mutants were selected from high virulent yersinia pestis strain 20b after treatment with nitroso guanidine. they were deficient in amino acids (arginine, aspartic acid, citrulline, glycine, glutamic acid, histidine, isoleucine, serine, leucine, lysine, ornithine, proline, tryptophan, tyrosine, valiney, pyrimidine and vitamins (riboflavin, thyamine, nicotinamide). some mutants were two- and three-fold dependent. the leucine-, histidine-, purine-dependent mutants were isola ...19751225753
proceedings: effect of antiserum against bacterial endotoxin on febrile response to lipopolysaccharide in host. 19751228239
[isolation and properties of several auxotrophic mutants of a highly virulent strain of the plague microbe].2432 stable auxotrophic mutants were selected from high virulent yersinia pestis strain 20b after treatment with nitroso guanidine. they were deficient in amino acids (arginine, aspartic acid, citrulline, glycine, glutamic acid, histidine, isoleucine, serine, leucine, lysine, ornithine, proline, tryptophan, tyrosine, valine), pyrimidine and vitamins (riboflavin, thyamine, nicotinamide). some mutants were two- and three-fold dependent. the leucine-, histidine-, purine-dependent mutants were isola ...19751232031
yersinia enterocolitica as a causative agent of septicaemia.the authors describe the first case of isolation of yersinia enterocolitica from blood in a septic infection in czechoslovakia. they also isolated a strain of y. enterocolitica from an inguinal tumour in the same patient. both strains belonged to biotype 4, serotype 0:3 and phagotype 8 and were non-pathogenic for guinea pigs and hares.19751236885
isolation of yersinia enterocolitica from cow's intestinal contents and beef meat. 19751237057
isolation of yersinia enterocolitica from some animals and meats. 19751237747
cat bite transmission of yersinia pestis infection to man.the transmission of bubonic plague from the kitten of a domestic cat to a man by means of a bite on a finger is described. the human case was complicated by the development of a secondary meningitis, followed, after specific therapy, by protracted recovery. the kitten showed swollen lymph nodes of the head and neck, frothing at the mouth and nostrils, and signs of an acute infectious disease which had a fatal termination. yersinia pestis was isolated on about the 8th day from the cerebrospinal f ...19751238568
[seriological cross reactions of 3 strains of yersinia entrocolitica]. 19751240182
[cellular components of yersinia entrocolitica. (1). biological activities of endotoxin and the effect of anti-endotoxin serum]. 19751240224
[r factor of yersinia enterocolitica. streptomycin (sm) and tetracycline (tc) resistance factor]. 19751240229
[yersinia enterocolitica (author's transl)]. 19751240296
subversion of host defense mechanisms by murine tumors. i. a circulating factor that suppresses macrophage-mediated resistance to infection.the subcutaneous injection of cells of any one of five unselected murine tumors resulted very rapidly in the liberation into the circulation of a small molecular weight factor that severely impaired the capacity of the host to resist experimental infection with listeria monocytogenes and yersinia enterocolitica. it was found that the factor appeared in blood within 8 h of injecting tumor cells subcutaneously. that it possessed potent physiological activity was evidenced by the demonstration that ...19761249520
[the pathogenic significance of bacterial lipopolysaccharides: lps syndrome. a review and hypothesis]. 19761251545
yersinia enterocolitica in borwn trout (salmo trutta l.) from norway.in this pilot study, 20 brown trout (salmo trutta l.) from one area in western norway were investigated for the presence of yersinia enterocolitica (y.e.). three strains were isolated from three of these trout. all strains were classified as y.e. on the basis of biochemical properties. one of the strains showed antigenic relationship to y.e o-serotype 17. a second strain was antigenically related both to y.e. and y. pseudotuberculosis: agglutination against y.e. o-antisera 4-33, 18, and 21, was ...19761251738
skin lesions in human yersiniosis. a histopathological and immunohistological study.various types of skin manifestations of human yersiniosis were examined with routine histological and immunohistological methods. the biopsy material consisted of sixteen cases of erythema nodosum, eight cases of erythema multiforme, and one case of erythema figuratum. the principal histopathological changes in erythema nodosum were septal or diffuse, mild panniculitis and in seven cases also necrotizing vasculitis in small, medium-sized or large arteries. perivascular lymphocytic infiltration w ...19761252349
[diseases caused by yersinia enterocolitica in childhood]. 19761253224
temperature-dependent cultural and biochemical characteristics of rhamnose-positive yersinia enterocolitica.clinical isolates of rhamnose-positive yersinia enterocolitica (y.e.rh+) were compared with typical rhamnose-negative y. enterocolitica (y.e.rh-) and with yersinia pseudotuberculosis. the y.e.rh+ differed from the y.e.rh- and y. pseudotuberculosis in their ability to ferment raffinose and lactose, utilize citrate and in their inability to grow on hektoen enteric agar at 22 or 37 c, on salmonella-shigella agar at 37 c, and scant on xylose-lysine-deoxycholate agar at 37 c. an extensive temperature ...19761254709
[yersinia enterocolitica and yersinia pseudotuberculosis in the pathogenesis of abdominal pain in children]. 19761256919
[erythema nodosum secondary to infection caused by yersinia enterolitica bacilli (1st case reported in poland)]. 19761257509
lung abscess and osteomyelitis of rib due to yersinia enterocolitica.the first reported case of infection of the lung and bone with yersinia enterocolitica is described. this organism has only recently been known to infect humans. although a wide spectrum of diseases has been described, all have appeared to be relatively benign; however, in our case a rapid necrotizing process occurred. therefore, the aggressive nature of this organism outside its usual surroundings, eg, the gastrointestinal tract, is worth noting.19761261324
yersinia pestis infection in vietnam. ii. quantiative blood cultures and detection of endotoxin in the cerebrospinal fluid of patients with meningitis.quantitative blood cultures were obtained from 42 patients with acute yersinia pestis infection to determine whether the concentration of bacteria in blood influenced the clinical severity and outcome of illness. in 17 bacteremic patients, colony counts in blood cultures ranged from less than 10 to 4 x 10(7)/ml. three of five patients with colony counts of greater than 10(2)/ml died, and two patients survived episodes of hypotension. results from plasma limulus tests were positive at the time of ...19761262715
[use of erythrocyte diagnostic agents for the determination of integrative association constants].the authors described a method of determination of integrative association constant differing from intrinsic association constant by the value of the valency of macromolecular antigen. the method is based on the using of erythrocytes on whose surface one of the components is fixed, whereas the other is in free state. application of equations was demonstratedon a number of examples with determination of integrative association constant. the data obtained permitted to assess qualitative peculiarit ...19761266452
studies on crohn's disease. 1. the relationship between yersinia enterocolitica infection and terminal ileitis.patients with terminal ileitis or regional enterocolitis have been examined for signs of infection due to yersinia enterocolitica serotype 3. the patients were grouped according to the length of preoperative history. among 18 patients with preoperative symptoms of one week or less there were nine with positive signs of yersinia enterocolitica infection. none of these patients developed the chronic form of crohn's disease while two of the primarily yersinia negative patients progressed to the chr ...19761266547
[antibiotic sensitivity of the pseudotuberculosis microbe]. 19761274212
absolute configuration of 3-hydroxy fatty acids present in lipopolysaccharides from various bacterial groups.the absolute configuration of 3-hydroxy fatty acids has been studied, which are present in the lipopolysaccharides of the following bacteria: phodopseudomonas gelatinosa, rh. viridis, rhodospirillum tenue, chromobacterium violaceum, pseudomonas aeruginosa, bordetella pertussis, vibrio metchnikovii, vibrio cholerae, salmonella spp., escherichia coli, shigella flexneri, proteus mirabilis, yersinia enterocolitica and fusobacterium nucleatum. the 3-hydroxy acids were liberated by strong alkaline hyd ...19761278168
lipopolysaccharide from yersinia pseudotuberculosis, type 1 b. a structural study of o-specific chains. 19761278178
proceedings: yersinia enteritis and enterocolitis. 19761278745
the yersinia tyrosine phosphatase: specificity of a bacterial virulence determinant for phosphoproteins in the j774a.1 macrophage.yoph is a plasmid-encoded protein tyrosine phosphatase (ptpase) secreted by pathogenic yersinia. although the enzyme likely acts to dephosphorylate eukaryotic proteins during yersinia infection of the mammalian host, the targets of yoph have not been identified. we infected the murine macrophage-like cell line j774a.1 with yersinia pseudotuberculosis and investigated the specificity of yoph and yophc403a, a catalytically inactive mutant derivative, for eukaryotic phosphoproteins. upon infection, ...19921281213
epitope homology between bacterial heat shock protein and self-proteins in the host cell.mouse monoclonal antibodies (mabs) showing distinct reactivity against the 60-kilodalton (kda) antigen heat shock protein of yersinia enterocolitica, designated cross-reacting protein antigen (crpa), have previously been established. the reactivities of these mabs (5c3 and 3c8) against mouse and human host cells were studied by western blotting and flow cytometric analysis. the results indicated that epitopes on the bacterial 60-kda heat shock protein are present on various molecules in mouse sp ...19921282022
antigen f1 from yersinia pestis forms aqueous channels in lipid bilayer membranes.antigen f1 is a protein of 17 kda produced by yersinia pestis when it is cultured at 37 degrees c. when incorporated into planar lipid bilayer membranes this protein induces fluctuations on membrane conductance typical of the formation of ionic channels. these fluctuations reveal two distinct unitary conductance sizes, one in the range of 800 to 1400 ps and the other in the range of 140 to 600 ps. zero current potential measurements in the presence of a salt gradient show that the channel is not ...19921284806
bacteriocin-like antagonism in yersinia enterocolitica.a total of 121 yersinia enterocolitica o3 isolates from patients with gastroenteritis and 37 y. enterocolitica reference strains with different o antigens were tested for bacteriocine production and sensitivity. by using cross-streaking method strains belonging to serogroups of o5; o7,8; o7,13; o11; o11,23; o13,27; o17; o19,8 and o34 produced bacteriocin-like substances. none of the y. enterocolitica o3 strains produced bacteriocin-like material and most of them were uniformly sensitive against ...19921284897
in vitro effect of levamisole on the neutrophil activity in rainbow trout (oncorhynchus mykiss).an in vitro immunization and cultivation method for fish spleen organ section was used to investigate the effects of levamisole on the neutrophil activity. after 10 days of culture with either 50 micrograms/ml, 25 micrograms/ml, 5 micrograms/ml or no levamisole in the media, the nonspecific defense reactions were measured by determining the metabolic activity of neutrophils by using the nitroblue tetrazolium test, and phagocytic and adherence indexes by incubating the fish cells with suspensions ...19921285074
in vivo neutralization of tumor necrosis factor-alpha and interferon-gamma abrogates resistance to yersinia enterocolitica infection in mice.cytokines are important mediators of the inflammatory host response against infectious agents. in this study, the role of tumor necrosis factor-alpha (tnf-alpha) and interferon-gamma (ifn-gamma) in the elimination of a primary infection with highly virulent yersinia enterocolitica serotype 0:8 strain wa-p has been investigated in c57bl/6 mice. the injection of anti-tnf-alpha or anti-ifn-gamma antibodies ("serotherapy") prior to the intravenous challenge of a sublethal dose of y. enterocolitica c ...19921287419
influence of a 70 kilobase virulence plasmid on the ability of yersinia enterocolitica to survive phagocytosis in vitro.during the course of infection, yersinia enterocolitica invades tissues where macrophages and polymorphonuclear leucocytes (pmns) constitute the first line of defence. as expression of virulence in y. enterocolitica is governed in part by a c. 70 kilobase virulence plasmid (pyv), we investigated the influence of this plasmid on the interaction between y. enterocolitica and phagocytes in vitro. the results showed that, irrespective of plasmid-carriage, yersiniae survived phagocytosis by macrophag ...19921291840
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