Publications
| Title | Abstract | Year(sorted ascending) Filter | PMID Filter |
|---|
| [induction of macrophage activation with bacterial products for potentiation of resistance to some chronic infections]. | adult mice of the consanguine a2g strain received two intraperitoneal inoculations of 0.5 mg listeria monocytogenes phospholipid extract at 30 days interval. in the treated animals and the controls, the capacity to develop a humoral immune response was tested 24 hours after the second inoculation, following antigenic stimulus with sheep red blood cells; phagocytizing in vitro of labelled germs by peritoneal macrophages and the response of lymphocytes to mitogenic and allogenic stimuli were likew ... | 1978 | 107569 |
| the effects of lipids from listeria monocytogenes on bacterial and fungal infections in mice. | investigations were made on the influence of lipids from listeria monocytogenes upon the course of infections induced by bacteria and fungi. chloroform-methanol extract of the lipids was given to animals in various doses and at various intervals before and after infection. mortality of mice and elimination rate of bacteria from the blood and organs were estimated. it was observed that the lipids markedly increased natural immunity of the animals against bacterial and fungal infections. the morta ... | 1978 | 107921 |
| allogeneic restriction of the delayed inflammatory reaction in the rat. | delayed-type hypersensitivity (dth) to listeria monocytogenes was measured in rats that were recipients of syngeneic, semisyngeneic, and allogeneic immune thoracic duct lymphocytes (tdl). dth could be transferred only to recipients that shared at least one haplotype with the tdl donors. the restriction was expressed in an inability of sensitized lymphoblasts to localize efficiently at antigen injection sites in the pinna of the ear and peritoneal cavity. failure of allogeneic lymphoblasts to ext ... | 1978 | 79605 |
| [studies about monocines (author's transl)]. | by means of mitomycin induction monocine preparations were made from 162 listeria monocytogenes strains. from tested strains of different serovars and antigen combinations altogether 76% were monocinogenic. examination of efficiency was performed against 15 indicator strains of listeria monocytogenes. concluding from spectra of reaction 6 groups of monocines (a-f) could be differentiated. serovar 5 (ivanov) proved as an indicator strain particularly sensitive for all monocines. | 1978 | 104479 |
| effects of isoprinosine, levamisole, muramyl dipeptide, and sm1213 on lymphocyte and macrophage function in vitro. | four immunopotentiators, levamisole, isoprinosine, muramyl dipeptide, and sm1213, were analyzed in vitro for their effect on phytohemagglutinin-induced lymphocyte proliferation and lymphokine-induced macrophage proliferation and activation to kill listeria monocytogenes. isoprinosine augmented all three functions. levamisole augmented lymphocyte proliferation and lymphokine-induced macrophage activation. muramyl dipeptide and sm1213 induced macrophage activation directly. the effects of these ag ... | 1978 | 83192 |
| hospital outbreak of listeria monocytogenes septicaemia: a problem of cross infection? | a 74-year-old man was admitted to hospital with septicaemia and meningitis caused by listeria monocytogenes. subsequently 3 inpatients developed listeria septicaemia. case-to-case transmission of the infection seems possible, although the method of transmission remains obscure. | 1978 | 82046 |
| intrathecal gentamicin for refractory gram-positive meningitis. | the mortality for meningitis due to staphylococcus aureus or listeria monocytogenes remains high, ranging from 32% to 77%. we treated a patient with staphylococcal meningitis refractory to methicillin sodium and oxacillin sodium, and a patient with listeria meningitis refractory to penicillin g potassium and ampicillin sodium; both patients were cured when intrathecal gentamicin sulfate was added to the regimen. the combination of intrathecal gentamicin and a penicillin may be beneficial in refr ... | 1978 | 96281 |
| [features of cellular immunity in several bacterial infections]. | 1978 | 96635 | |
| antibiotic susceptibility of clinical isolates of listeria monocytogenes. | a broth microdilution method was used to measure the minimal inhibitory concentrations (mics) of the antibiotics most often recommended for treatment of listeriosis. the mics of ampicillin, penicillin, erythromycin, and tetracycline for 175 strains of listeria monocytogenes were below the approximate mic breakpoint for susceptible strains as recommended by the national committee on clinical laboratory standards. inhibition diameters for 125 strains were measured by the standardized disk method ( ... | 1978 | 96737 |
| comparison of bacterial cardiotoxins: thermostable direct hemolysin from vibrio parahaemolyticus, streptolysin o and hemolysin from listeria monocytogenes. | some properties of the bacterial cardiotoxins, thermostable direct hemolysin from vibrio parahaemolyticus (vibriolysin), and streptolysin o and hemolysin from listeria monocytogenes (listeriolysin), were compared. these toxins had rapid lethal effects on mice when injected intravenously. the electrocardiographic changes of rats after intravenous injections of these toxins were very similar, showing bradycardia and inhibition of atrio-ventricular conduction. these toxins also caused cessation of ... | 1978 | 96814 |
| activated lymphocytes trigger lymphoblast extravasation. | 1978 | 96942 | |
| [resistance to infection with listeria monocytogenes in normal and thymusless mice treated with ampicillin (author's transl)]. | nmri mice were infected intravenously with a sublethal dose of listeria monocytogenes and divided into four groups. one group served as the control and the other three were treated with ampicillin beginning 4, 8 or 24 hours after infection. the animals were injected in the morning and in the evening each time with 4 mg ampicillin subcutaneously until a total dose of 48 mg was reached. as demonstrated by counting of the bacteria in the spleen, listeria could multiply in the ampicillin treated mic ... | 1978 | 96629 |
| allogeneic restriction of acquired antimicrobial resistance in the rat. | allogeneic restriction of acquired antimicrobial resistance was demonstrated by infusing listeria-immune thoracic duct lymphocytes (tdl) into syngeneic, semisyngeneic, or allogeneic recipients that had been infected i.v. with listeria monocytogenes (lm). syngeneic and semisyngeneic recipients enjoyed a high level of protection (3 to 5 log10 reduction in viable organisms within 64 hr, whereas allogeneic recipients were poorly protected (0.5 to 2.5 log10 reduction). sharing one haplotype between t ... | 1978 | 98584 |
| listeria monocytogenes infection in neonates: investigation of an epidemic. | from march 10 through october 29, 1975, listeria monocytogenes infection occurred in seven neonates born at a 401-bed general hospital in greenville, s.c. in the preceding 19 months, there had been only one case. six of the seven isolates from the infected infants were of serotype jb. risk of listeriosis in neonates was associated with being born to mothers of low socioeconomic status and being born to mothers who had had vaginitis during pregnancy. nosocomial transmission of l. monocytogenes ap ... | 1978 | 98594 |
| inhibition by gangliosides of hemolysis induced by streptolysin o and listeria monocytogenes hemolysin [proceedings]. | 1978 | 98658 | |
| increased phagocytic activity of splenectomized mice challenged with listeria monocytogenes. | adult splenectomized mice exhibit increased resistance to infection with listeria monocytogenes. phagocytosis, by reticulo-endothelial cells, of test particles (51cr-labelled sheep erythrocytes) is the same in splenectomized and control mice. however, 24 h exposure to listeria, which fails to influence phagocytic activity of normal mice, greatly enhances the blood clearance and liver uptake of the test particles in splenectomized mice. the presence of a cell population and/or product in the sple ... | 1978 | 96011 |
| [gram-positive bacteria as adjuvants (author's transl)]. | gram-positive bacteria or their constituents influence the immune response in various ways. for instance: listeria monocytogenes cellwall fraction acts as b-cell mitogen, in this way enhancing a humoral immune response. corynebacterium parvum acts as a macrophage stimulant evoking maximum macrophage activation. bcg, among other things, leads to an enhancement of a t-cell response to unrelated antigens. the hypothetical therapeutic consequences are discussed. | 1978 | 96006 |
| augmented resistance to listeria monocytogenes in mice at an early stage of aging. | protective mechanisms against listeria monocytogenes were studied in young (3-month-old) and old (15-month-old) mice of c3h/he strain. cumulative mortality rates of old mice were lower than those of young mice after intravenous inoculation of the same doses of bacteria. the numbers of bacteria in the liver and spleen on days 1 and 3 were larger in young than old mice. bacterial growth at this stage of infection is suppressed by accumulation of non-immune macrophages. on day 7, however, the numbe ... | 1979 | 95807 |
| regulation of the immune response by macrophages. | regulation of the immune response by macrophages was studied with cellular resistance to listeria monocytogenes as parameter. the use of agents which suppress macrophage activity during the induction-phase of immunity enabled the induction of protective immunity with killed listeria. fractionation of the cell content of listeria yielded an rna'se sensitive fraction which in a dose of 300 ng and in combination with the cationic surfactant dimethyl dioctadecyl ammonium bromide induced protective i ... | 1979 | 95385 |
| the comparative effects of isoprinosine, levamisole, muramyl dipeptide and sm1213 on lymphocyte and macrophage proliferation and activation in vitro. | 1979 | 95186 | |
| [on the serology and immunbiology of listeriosis. vii. communication: further investigations on the agglutination-immobilization test (author's transl)]. | factor antisera oriented to different serovars of listeria moncytogenes, expecially to serovar 7 and murray grayi (listeria grayi) were tested. it was found that the agglutination-immobilization test detects antibodies oriented to the h-antigen. by contrast, the growth inhibition test measures antibodies oriented to the o-antigen. summarizingly, it can be stated that the following three seroreactions, each based on a different mode of action, are available for the determination of antibodies spe ... | 1979 | 95075 |
| assessment of blood leukocyte microbial killing by using a new fluorochrome microassay. | 1979 | 90723 | |
| practical considerations in using counterimmunoelectrophoresis to identify the principal causative agents of bacterial meningitis. | many clinical laboratories are currently using counterimmunoelectrophoresis (cie) as an aid in the rapid diagnosis of bacterial meningitis. because cross-reactions among causative agents have been reported, the present study was undertaken to explore the problems that might occur when reference and commercial antisera are used in cie. broth cultures of 35 bacterial strains were tested with 76 reference and commercial antisera by cie. some of the antisera tested failed to react with their homolog ... | 1979 | 93606 |
| ia antigens in serum during different murine infections. | there exists in the mouse a family of i-region-controlled (ia) antigens which carry carbohydrate-defined determinants. these antigens appear in serum as glycolipids and seem to be actively secreted by antigen-activated t-cells. this paper describes the ability of selected viral, bacterial, and protozoal infections of mice to markedly alter the serum levels of these ia antigens. all the infectious agents examined induced substantial augmentation or suppression of serum ia concentrations or both. ... | 1979 | 94905 |
| correlation between in vivo and in vitro functional tests for activated macrophages. | mice undergoing graft-versus-host reaction, skin grafting, and inoculation with tumor cells were tested for nonspecific resistance by intravenous challenge with listeria monocytogenes. peritoneal exudate macrophages from mice treated in a similar manner were tested in vitro for increased degradation of [1-14c]glucose, ability to degrade antigen/antibody complexes, ability to inhibit intracellular growth of listeria, and staining for beta-galactosidase. there was good correlation between in vivo ... | 1979 | 33898 |
| detection of experimental bacteremia and fungemia by examination of buffy coat prepared by a micromethod. | rabbits received intravenous injections of bacteria or fungi, and a comparison was made of the abilities of broth cultures, plating after dilution either in saline solution or in distilled water containing triton x-100, and buffy coat examinations to detect the organisms in heart blood. the most sensitive method was broth culture. by microscopy or subculture of buffy coat cells prepared by centrifugation of blood in microhematocrit tubes, organisms were rapidly and regularly detected when their ... | 1979 | 38662 |
| isolation of listeria monocytogenes from animals in the sudan. | 1979 | 107996 | |
| human listeriosis in peru. | in a survey on listeriosis in peru a study was made of 653 stool samples; material from 8 cases of perinatal death, in which a macroscopic diagnosis of listeriosis had been made at autopsy; 1 sample of vaginal secretion from a woman with abortion due to listeriosis; and 1 case of abscess which turned out to be an hematometra. the following results have been obtained: 1. from the faeces 7 isolates of listeria (1.07%) were obtained: 3 belonged to l. monocytogenes serovar 4ab, 3 to l. innocua (the ... | 1979 | 108825 |
| low temperature virulence of listeria monocytogenes in the avian embryo. | the chick embryo was used to investigate the pathogenicity of listeria monocytogenes when inoculated into the air sac. one strain (nctc 5214) of l. monocytogenes was found to be more virulent for chick embryos when grown at low temperatures, while another strain (nctc 5105) did not produce this effect. this method was found to be reliable and reproducible and the chick embryo was found to be a more sensitive in vivo assay for virulence than the mouse. | 1979 | 108871 |
| [listeria monocytogenes in newborn infants; an organism causing sepsis and meningitis]. | 1979 | 114867 | |
| macrophage-t cell interactions involving listeria monocytogenes--role of the h-2 gene complex. | this study reports on the in vitro interactions between t cells from listeria-immunized mice, macrophages from normal mice, and heat-killed listeria organisms. this interaction was assayed either by determing the amount of thymocyte mitogen in culture fluids after 24 hr, or by estimating the degree of t cell proliferation after 96 hr. each assay depended on critical concentrations of macrophages, t cells, and heat-killed listeria, points that were evaluated in a number of experiments. both assay ... | 1979 | 109529 |
| induction of cytocidal macrophages after in vitro interactions between listeria-immune t cells and macrophages--role of h-2. | 1979 | 109530 | |
| isolation, characterization, and biological properties of an endotoxin-like material from the gram-positive organism listeria monocytogenes. | the bacterial component responsible for the induction of transient cold agglutinin syndrome in rabbits after intravenous injection of heat-killed listeria monocytogenes type 4b has been purified and biologically and chemically characterized. a purified immunoglobulin m cold agglutinin was prepared from high-titer sera resulting from the immunization of rabbits with heat-killed l. monocytogenes type 4b and was subsequently used to monitor the purification of the bacterial component responsible fo ... | 1979 | 110684 |
| relationship between superoxide dismutase and pathogenic mechanisms of listeria monocytogenes. | listeria monocytogenes was examined for superoxide dismutase(sod) activity. two catalase-negative strains possessed at least twofold greater sod activities than the catalase-positive l. monocytogenes strains examined. growth conditions such as aeration and iron concentration influenced the specific activity of sod obtained from cells cultured in defined media. l. monocytogenes sod from crude extracts and after partial purification was analyzed by polyacrylamide gel electrophoresis. iron was asso ... | 1979 | 110685 |
| susceptibility of cba/n mice to infection with salmonella typhimurium: influence of the x-linked gene controlling b lymphocyte function. | 1979 | 110879 | |
| morphology of liver lesions in experimental listeriosis is splenectomized mice. | 1979 | 110927 | |
| in vitro effect of mitogen-activated speen cells and their culture supernatants on mouse peritoneal macrophages as assayed by intracellular killing of listeria monocytogenes and content of beta-galactosidase. | 1979 | 110928 | |
| [two cases of meningitis due to listeria monocytogenes (author's transl)]. | two cases of meningitis due to listeria monocytogenes in a 73-year-old man and a 77-year-old woman are described. both patients were admitted to an emergency department in acute state, probably caused by cerebral stroke. neither presented clinical symptoms of meningitis. no other concomitant conditions which might weaken the patient's general state were known to be present. the first patient died after 16 hours, the second after 5. the analysis of the cerebrospinal fluid gave the following infor ... | 1979 | 110989 |
| listeriosis in sheep. listeria monocytogenes excretion and immunological state in sheep in flocks with clinical listeriosis. | 1979 | 116488 | |
| myocarditis with microabscess formation caused by listeria monocytogenes associated with myocardial infarct. | myocardial infarction complicated by bacterial infection is rare. the present case is an instance in which the infecting organism, listeria monocytogenes, is also rare--an instance not previously reported. the clinical findings were fever without localized infection, severe atherosclerotic heart disease, a myocardial infarct of indeterminate age, and a left ventricular aneurysm. additional electrocardiographic findings include left bundle branch block, intraventricular conduction defect, and mul ... | 1979 | 112029 |
| delayed-type hypersensitivity and acquired cellular resistance in mice immunized with killed listeria monocytogenes and adjuvants. | delayed-type hypersensitivity (dh) and acquired cellular resistance (arc) to listeria monocytogenes in mice was studied following immunization with killed bacteria in combination with freund's complete adjuvant or the adjuvant dimethyldioctadecylammonium bromide (dda). intracutaneous or intraperitoneal injections of killed listeria mixed with freund's complete adjuvant did neither result in dh nor in acr. intracutaneous injections of killed listeria and dda resulted in an antigen-dose dependent ... | 1979 | 112043 |
| suppressive effect of bacterial endotoxin on the expression of cell-mediated anti-listeria immunity. | intravenous injection of bacterial endotoxin into mice at any time during ongoing infection with listeria monocytogenes resulted in a markedly increased multiplication of this organism in the liver and spleen. experiments designed to investigate the basis of this infection-enhancing effect revealed that endotoxin was also capable of inhibiting the expression of adoptive t-cell-mediated anti-listeria immunity if given to normal recipient mice up to 48 h before they were infused with protective t- ... | 1979 | 112056 |
| perinatal and neonatal infections: listeriosis. | 1979 | 112093 | |
| [meningitis caused by listeria monocytogenes]. | 1979 | 111319 | |
| [neonatal listeriosis]. | 1979 | 111338 | |
| macrophage activation during experimental murine brucellosis: a basis for chronic infection. | evidence is presented that the chronicity of infection in cba mice after injection of brucella abortus 19 is related to a number of factors: (i) the relative resistance of b. abortus to macrophage killing, which allowed some bacteria to survive the peak of macrophage activity occurring at 14 days; (ii) the decline in macrophage activity thereafter (this decline was related in part to the presence of fewer bacteria to stimulate the bactericidal activity and also to specific, active suppressor mec ... | 1979 | 106010 |
| cross-reactions between mycobacteria. ii. crossed immunoelectrophoretic analysis of soluble antigens of bcg and comparison with other mycobacteria. | cross-reactions between mycobacterium bovis bcg and various other mycobacteria, nocardia asteroides, corynebacterium pyogenes and listeria monocytogenes were studied by incorporating antibodies against these bacteria in the intermediate gel of a crossed immunoelectrophoretic system with bcg antigen and anti-bcg antibodies. in the bcg reference system forty-four distinct antigenic components were recorded, of which thiryt-three cross-reacted with mycobacterium tuberculosis, twenty-five with m. av ... | 1979 | 106465 |
| [listeriasis in man and animal in the netherlands (1958-1977)]. | 1979 | 107461 | |
| [influence of maternal antibodies on the primary and secondary immunoresponse of the juvenile organism (author's transl)]. | the immunization of mice with sheep erythrocytes served as model for the materno-fetal transfer of specific antibodies. it could be shown that passively transferred antibodies are able to induce a long-lasting suppression of the primary and secondary immuno-response in the offspring. this holds true both for active immunization before pregnancy and for passive immunization shortly before term. as it can be supposed that similar effects also apply to the human organism, this phenomenon must be co ... | 1979 | 105206 |
| listeriosis in sheep. isolation of listeria monocytogenes from grass silage. | 1979 | 44661 | |
| activation of macrophages assessed by in vivo and in vitro tests. | 1979 | 44641 | |
| [listeriasis in goats]. | 1979 | 112711 | |
| stimulation of monocyte precursors in vivo by an extract from listeria monocytogenes. | a water-soluble monocytosis-producing activity (mpa) extracted from listeria monocytogenes was found to stimulate proliferation of promonocytes in vivo. mice were pulse-labelled for 2 h with tritiated thymidine ([3h]tdr) at various times after intraperitoneal injection of mpa. autoradiography of bone marrow cells revealed an increased labelling index of promonocytes of mpa-treated mice which was maximum 8 h after the mpa injection. mice labelled with [3h]tdr 8 h after mpa injection developed a m ... | 1979 | 113068 |
| immunological properties of partially purified material with monocytosis-producing activity from listeria monocytogenes. | a fraction rich in a monocytosis-producing activity (mpa) has been obtained by a two-stage chromatographic separation from a saline extract (se) of listeria monocytogenes. like se, the purified material elicits monocytosis and decreases the halftime of circulating monocytes. the purification of mpa eliminates the following found in se: the in vitro mitogenic activity, the in vitro adjuvant activity, the immunosuppressive activity, and the granulocytosis-promoting and the lymphopenia-inducing act ... | 1979 | 113069 |
| [differentiation of nonspecific serological reactions in brucellosis]. | differentiation of non-specific agglutination was performed by the complement binding reaction, coombs' reaction, hajdu reaction, the surface fixation and agglutination reaction and the reaction of complement binding with heterologic antigens. for that purpose the following were used: 1) serums--antiglobulin against cattle globulin, 5720 serum of various animals which had manifested non-specific agglutination with brucella antigen and brucella serums of experimentally infected sheep, of naturall ... | 1979 | 120633 |
| induction of listeria monocytogenes infection by the consumption of ponderosa pine needles. | an infectious microorganism, identified as listeria monocytogenes, has been isolated from the bloodstream of pregnant mice fed a diet containing pinus ponderosa needles. when the isolate was injected into pregnant mice, reproductive dysfunction and other changes, including speckled livers, spleen atrophy, and hemorrhagic intestines, appeared to mimic the signs of the disease in pregnant mice fed pine needles. moreover, these pathological changes are similar to those observed in cattle and other ... | 1979 | 113341 |
| phenotypic expression of genetically controlled host resistance to listeria monocytogenes. | several inbred mouse strains, all of them derived from the c57bl background, have genetically determined increased resistance to infection with listeria monocytogenes, whereas a variety of other strains are relatively sensitive to this infection. comparison of the host response to l. monocytogenes in the sensitive a strain and the resistant c57bl/6 (b6) strain revealed that the b6 mice were superior to a mice both in the t-cell-independent and in the t-cell-dependent phase of the response. altho ... | 1979 | 113346 |
| influence of lipids from listeria monocytogenes on the course of infections due to some gram-positive bacteria in mice. | the influence of lipids from listeria monocytogenes on the course of infections due to some gram-positive cocci streptococcus pyogenes, streptococcus faecalis and staphylococcus aureus and l. monocytogenes was studied in white mice. varying doses of the lipid preparation were administered before infection. mortality of the animals and rate of elimination of the bacteria from the organs and blood circulation were recorded. in appropriate doses, the lipids markedly enhanced resistance to the afore ... | 1979 | 121229 |
| [increased catabolism of antigen and enhanced recruitment of antigen-sensitive cells by activation of macrophages with a bacterial phospholipid extract (ebp) (author's transl)]. | intravenous (iv) infection of a bacterial phospholipid extract (ebp) 24 h before iv immunization of mice with sheep red blood cells has modified the specific immune response. a decrease of the response evaluated by the number of rosette-forming cells was observed after the larger doses of ebp. this effect appeared secondarily to an increased catabolism of antigen. infection of a medium sized dose of ebp directly into the portal vein induced a decreased response by enhancing antigen phogocytosis ... | 1979 | 121519 |
| heterogeneity of binding of human iga subclasses to protein a. | the ability of human iga myeloma immunoglobulins to interact with protein a-containing staphylococcus aureus was examined. some iga1 and iga2 immunoglobulins bound to s. aureus although others of both subclasses failed to do so. these results were obtained by using both direct binding of radiolabeled immunoglobulins to s. aureus and with inhibition-type assays. binding was dependent on the fc fragment of iga since there was no binding to s. aureus by an f(ab')2 fragment of iga1. nonprotein a-con ... | 1979 | 113457 |
| protection of mice against babesia microti with cord factor, coam, zymosan, glucan, salmonella and listeria. | cord factor (trehalose 6-6' dimycolate). coam (chlorite-oxidized oxyamylose), zymosan, glucan, salmonella enteritidis 11rx and listeria monocytogenes were found to protect mice against subsequent infection with babesia microti, an intra-erythrocytic protozoan parasite. this protection was not observed after injection of staphylococcus epidermidis, a viridans group streptococcus, thioglycollate, or colloidal carbon. all the agents which protect against b. microti have also been reported to induce ... | 1979 | 121772 |
| purification of antibodies to bacterial antigens by an immunoadsorbent and a method to quantify their reaction with insoluble bacterial targets. | a combination of procedures was employed to develop a radioimmunoassay which quantified the binding of antibodies to antigens of either intact propionibacterium acnes or to antigens of insoluble extracts derived from the bacteria. reactive antibody populations were purified by use of bacterial immunoadsorbents which were prepared by coupling p. acnes to diethylaminoethyl cellulose. binding of antibodies was detected with [125i]staphylococcal protein a ([125i]spa) and optimal conditions for the a ... | 1979 | 113462 |
| use of a macrophage cytotoxicity system to show macrophage activation by listeria monocytogenes cell wall fraction. | experiments were conducted to determine whether a partially purified listeria cell wall fraction could stimulate macrophages to high levels of activation. to detect activation of macrophages, a macrophage-mediated cytotoxicity system were established. the data demonstrate that listeria cell wall components are capable of activating thioglycollate-induced adherent peritoneal exudate cells to be cytotoxic for 51cr-labelled target tumour cells, and that the listeria fraction is as effective as bact ... | 1979 | 112673 |
| [epidemiology and diagnosis of listeria infections. 1]. | 1979 | 113195 | |
| microbial interference and colonization of the murine gastrointestinal tract by listeria monocytogenes. | two strains of listeria monocytogenes, one that formed smooth colonies on agar surfaces and a varient of it that formed rough colonies, colonized the gastrointestinal tracts of germfree mice. within 24 h after mice were inoculated orally with about 100 bacteria, the population levels per gram (wet weight) of tissue of both strains were 10(5) to 10(7) in the stomach and ileum and 10(8) to 10(9) in the cecum and colon, respectively. as detected in gram-stained histological sections, in such gnotob ... | 1979 | 106003 |
| enhancement of resistance to murine osteogenic sarcoma in vivo by an extract of brucella abortus (bru-pel): association with activation of reticuloendothelial system macrophages. | the administration of an aqueous-ether extracted residue of brucella abortus (bru-pel) inhibits development of transplanted osteogenic sarcomas in mice as evidenced by a decrease in mortality. at least one mechanism through which bru-pel modulates host resistance is activation of macrophages of the reticuloendothelial system. peritoneal macrophages harvested from mice receiving bru-pel were cytotoxic for osteogenic sarcoma cells in vitro, limited the replication of vaccinia virus in cell culture ... | 1979 | 106004 |
| antitumor activity of listeria monocytogenes on a guinea pig fibrosarcoma. | listeria monocytogenes-mediated tumor inhibition was studied in strain 13 guinea pigs by using a methylcholanthrene-induced fibrosarcoma (mca-1). mixtures of listeria and tumor cells in ratios of 1:100, 1:200, or 1:400 (listeria:mca-1 cells) led to significant suppression of tumor growth. intralesional injection of tumors on day 6 posttransplantation led to the regression of a highly significant number of tumors. animals receiving injections of listeria, either in a mixture with tumor cells or i ... | 1979 | 106006 |
| a case of hematometra infected by listeria monocytogenes. | a case of listeria infection is reported of a 10 year old girl with symptoms of the first menstruation but without the discharge of blood because of the absence of the vaginal duct. the blood retained in the uterus obtained by puncture through the rectum contained listeria monocytogenes 4b. the infection was possibly acquired from a household pet. | 1979 | 113954 |
| listeriosis in sheep. listeria monocytogenes excretion and immunological state in healthy sheep. | 1979 | 114002 | |
| [specific soluble antigens and listeria monocytogenes typing by electrosyneresis (author's transl)]. | listeria monocytogenes releases its antigens during the exponential phase. electrosyneresis on agarose allows detection of these antigens in the supernatant of broth culture following a 3 h incubation of the strains. this serotyping method seems to be easy, rapid and reproductible. the authors have investigated 83 strains of different origines and find no difference with agglutination. however, during the stationary phase, l. monocytogenes releases other antigens which gave precipitation lines w ... | 1979 | 114080 |
| stimulation of cell-mediated resistance in mice to infection with listeria monocytogenes by vitamin a. | vitamin a given as retinol-acetate, retinol-palmitate as well as the derivates retinoic acid and a retinoid, strongly fortified the resistance of mice to infection with virulent cells of listeria monocytogenes. however, strong enhancement of resistance was only achieved when high toxic doses of vitamin a were given. apparently, this effect was due to a stimulation of the function of the mononuclear phagocytic system rather than of the t lymphocyte. | 1979 | 115378 |
| long-term culture of canine peripheral blood monocytes in vitro. | various cultural conditions were assessed for their ability to maintain canine peripheral blood monocytes in vitro. approximately ten days after incubation of peripheral blood leukocytes in earle's minimum essential medium supplemented with homologous red cell lysates and normal horse serum, virtually a pure macrophage culture was obtained which could then be maintained for about two months. this culture was judged to be pure by surface marker analysis and their phagocytic activity. the number o ... | 1979 | 115559 |
| purification of a surface-specific soluble antigen from listeria monocytogenes. | a complex antigenic preparation obtained from listeria monocytogenes serovariant 4b by freeze-pressing, centrifugation, and gel filtration treatment was studied by crossed immunoelectrophoresis, with the aim of preparing an antigenic fraction that could be used to investigate the serological response to listeric infection. of 17 immunoprecipitates revealed in the soluble extract, one of three major antigens (designated antigen 2) was shown to be a strong antigen in humans or rabbits infected wit ... | 1979 | 115793 |
| [the problem of speciality of lal test in bacterial endotoxin-like substances (author's transl)]. | 1979 | 158437 | |
| t cell-mediated immune responses of lupus-prone bxsb mice and other murine strains. | cellular-mediated immunity in the newly described bxsb strain of mice, which is prone to autoimmune disease, has been compared with that of two other strains, c57bl/6 and 129/j. quantificaiton of cytotoxic t cell responses to alloantigens and viruses (lymphocytic choriomeningitis and vaccinia virus) showed no difference in the kinetics of appearance and relative activity of cytotoxic t cells per spleen between the young and old bxsb and the control mice. the t cell-dependent primary footpad swel ... | 1979 | 159146 |
| response to therapy in an experimental rabbit model of meningitis due to listeria monocytogenes. | a uniformly fatal, reproducible model of experimental meningitis due to listeria monocytogenes was developed in rabbits for study of the natural progression of the disease and was used to evaluate treatment regimens. bacterial titers in cerebrospinal fluid and pleocytosis approximated those found in humans. therapeutic studies in vivo revealed that rifampin was less rapidly bactericidal than ampicillin or penicillin, the agents usually recommended for treatment of meningitis; that penicillin plu ... | 1979 | 115932 |
| the specific binding of listeria monocytogenes-immune t lymphocytes to macrophages. i. quantitation and role of h-2 gene products. | a system was developed to study the binding of listeria monocytogenes-specific t cells to l. monocytogenes-pulsed macrophages as an analogue of the initial phase of t-cell activation: antigen recognition. specific binding, demonstrable after a brief (1 h) contact, was quantitated by the depletion of l. monocytogenes-specific t-cell activity in the cells nonadherent to l. monocytogenes-pulsed macrophage monolayers. l. monocytogenes-specific t-cell function was measured by its ability to activate ... | 1979 | 115958 |
| age-related defense against infection with intracellular pathogens. | young adult (6--12 weeks old) and aged (20--24 months old) nmri mice were infected with various intracellular parasites. the following results were obtained: (1) after a sublethal infection with listeria monocytogenes, aged mice were found to show a resistance similar to that of young adults. a challenge infection with this pathogen was followed by specific immunity of long duration in both age-groups. (2) on the other hand, young animals were significantly more resistant to salmonella typhimuri ... | 1979 | 116909 |
| specific lyt 123 cells are involved in protection against listeria monocytogenes and in delayed-type hypersensitivity to listerial antigens. | specific anti-lyt antisera and complement were used to determine the lyt phenotype of peritoneal exudate t lymphocytes from listeria monocytogenes-immune mice. it was found that lyt 123+ t cells are crucially involved both in protection against listerial infection and in delayed-type hypersensitivity (dth) to listerial antigens. thus, both functions critically depend on a t-cell subclass phenotypically different from that which mediates dth to noninfectious antigens and help in antibody formatio ... | 1979 | 117073 |
| use of selective agents for the isolation of listeria monocytogenes. | 1979 | 117274 | |
| activation of reticuloendothelial cells following infection with murine cytomegalovirus. | macrophage and reticuloendothelial system function was investigated in adult, female c3h mice during the course of a nonlethal infection with murine cytomegalovirus (mcmv). peritoneal macrophages harvested from mice infected three to 21 days previously were tumoricidal in vitro for a syngeneic mammary tumor cell line and showed antiviral activity by suppressing replication of vaccinia virus in a fibroblast monolayer. in addition, macrophages harvested from animals on days 7 and 14 after mcmv inf ... | 1979 | 221597 |
| listeria monocytogens: synergistic effects of ampicillin and gentamicin. | listeria monocytogenes infections are most common in newborn infants and persons with impaired defense mechanisms. there are reports of successful treatment with ampicillin alone: however, there is uncertainty as to what regimen constitutes the most effective therapy. the purpose of this study was to illustrate the in-vitro synergism between ampicillin and gentamicin against l. monocytogenes. seven strains of l. monocytogenes isolated from bloods or cerebrospinal fluids of infants and three cont ... | 1979 | 117697 |
| [listeria enzootic in newborn lambs]. | epizootological, clinical and pathomorphological studies were made of a meningo-encephalitic form of listeriotic enzooty in new born lambs. the clinical symptoms as well as the patho-anatomical and patho-histological changes in the brain and in the inner organs of dead lambs were described. arisal of enzooty was connected with the inclusion of silage in the daily ration of ewes. it was assumed also that infection of suckling lambs possible by the milk of diseased mother-ewes also and in the pren ... | 1979 | 118579 |
| differing contribution of polymorphonuclear cells and macrophages to protection of mice against listeria monocytogenes and pseudomonas aeruginosa. | bacterial growth and lethality of listeria monocytogenes in mice were augmented by carrageenan-treatment and x-irradiation (8 j kg-1), whereas growth and lethality of pseudomonas aeruginosa were augmented by x-irradiation but not by carrageenan-treatment. protection against l. monocytogenes, at least in the early phases, appears to depend mainly on macrophages, since carrageenan depletes macrophages but not polymorphonuclear cells (pmn), whereas protection against p. aeruginosa appears to depend ... | 1979 | 119029 |
| [bacteriophage typing of 823 "listeria monocytogenes" strains isolated in france from 1958 to 1978 (author's transl)]. | this study was undertaken to establish a typing scheme for listeria monocytogenes. a total of 823 strains, isolated in france from 1958 to 1978, were studied; 69.4% of these belonged to serotype 4. using a set of 20 phages, the lytic activity, frequency and specific character of these phages were estimated and phage typing carried out. we were able to define a phage typing system for l. monocytogenes using 12 principal phages and 3 secondary phages. in order to discriminate phages types within s ... | 1979 | 119457 |
| arthritis due to listeria monocytogenes. | 1979 | 114181 | |
| active or passive acquired resistance after mycobacterium lepraemurium infection in c57bl/6 and c3h/hen mice. | 1979 | 115377 | |
| effect of listeria monocytogenes lipids on the course of infections with some gram-negative bacilli in mice. | the effect of listeria monocytogenes lipids on the course of infections with salmonella enteritidis, yersinia pseudotuberculosis, pseudomonas aeruginosa and klebsiella pneumoniae was studied in mice. the lipids were extracted with chloroform and methanol and used in various doses before and after infection with the bacilli. the lipids significantly increased mouse resistance toward the examined bacteria. the protective effect depended, to a large extent on the applied dose of lipids and its timi ... | 1979 | 109064 |
| partial characterization of anti-tumor effector macrophages in the peritoneal cavities of concomitantly immune mice and mice injected with macrophage-stimulating agents. | 1979 | 115998 | |
| [meningoencephalitis caused by listeria monocytogenes in adults. description of 2 cases]. | two patients are presented who had listeria meningo-encephalitis. they were both adults and reduced in defences against infections. the diagnosis was made by isolation of listeria monocytogenes from cerebrospinal fluid cultures. one of the patients recovered; other died although therapeutic measures were promptly started. the authors suggest the need for a careful research about listeria infections in our country. | 1979 | 121687 |
| [2 cases of listeriosis in newborn infants]. | 1979 | 121898 | |
| immunostimulating effect of listeria monocytogenes, bcg and their biologically active extracts on the model of mouse ascites tumors. | 1979 | 120515 | |
| comparison of brucella abortus and brucella melitensis infections of mice and their effect on acquired cellular resistance. | by using mice infected with strains of brucella abortus and brucella melitensis we examined the histological responses to infection, the relationship of histology to persistence of organisms, and the relation of persistence of organisms to the acquisition of acquired cellular resistance (acr). infection with b. abortus resulted in well-formed granulomas in the livers, which persisted for more than 30 days. in contrast, infection with b. melitensis produced microabscesses in the livers which reso ... | 1979 | 121113 |
| [biological action of triton x-100 on pathogenic bacteria]. | 1979 | 121195 | |
| in vitro induction of cell-mediated immunity to murine leukemia cells. vii. methods for augmenting the induction and expression of cytotoxic response in vitro to syngeneic tumors. | 1979 | 155712 | |
| effects of cannabinoids on host resistance to listeria monocytogenes and herpes simplex virus. | previous investigations from our laboratories have demonstrated that cannabinoids possess immunosuppressive properties. the present studies were designed to determine whether these agents decrease host resistance to infections with listeria monocytogenes and herpes simplex virus type 2. host resistance was measured by changes in the 50% lethal dose of the pathogen in cannabinoid-treated and control mice. the effect of cannabinoids on resistance to l. monocytogens was dose dependent. delta-9-tetr ... | 1979 | 313368 |
| [incidence of listeria monocytogenes in faeces of employees of meat processing plants and meat shops (author's transl)]. | 1979 | 156084 | |
| listeria monocytogenes: brain abscess or meningoencephalitis? | a brain abscess caused by listeria monocytogenes developed in an immunosuppressed renal transplant patient. meningitis and meningoencephalitis from this organism were encountered in three other renal transplant recipients at this medical center during the past 4 years. focal neurologic deficits occurred in patients with either listeria abscess or meningoencephalitis. computerized tomography was a rapid aid to the diagnosis of abscess. immunosuppression has increased the incidence of central nerv ... | 1979 | 370686 |
| indirect sandwich enzyme-linked immunosorbent assay for rapid detection of haemophilus influenzae type b infection. | we report the development and testing of an enzyme-linked immunosorbent assay with excellent sensitivity for the detection of haemophilus influenzae type b (hi(b)) antigen in clinical specimens from patients with hi(b) meningitis. the assay, an indirect sandwich technique, uses polystyrene balls as a solid phase and an alkaline phosphatase-labeled goat anti-rabbit globulin conjugate. specimens are incubated with polystyrene balls armed with burro anti-hi(b) antiserum, and recognition antibody is ... | 1979 | 393714 |
| in vitro acquisition of resistance against herpes simplex virus by permissive murine macrophages. | 1979 | 222234 |