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the relationship between listericidal and mycobacteriostatic activity in bcg-vaccinated mice. 19744218267
[paradoxal resistance of athymic mice to infection by listeria monocytogenes and salmonella typhimurium and immunostrimulating effect of phospholipid bacterial extract (epg)]. 19744218529
early appearance of sensitized lymphocytes in mice infected with listeria monocytogenes. 19744205204
requirement for bone marrow-derived cells in resistance to listeria. 19744205529
immunostimulation with bacterial phospholipid extracts.injection of bacterial phospholipid extracts (ebp) into mice increased their resistance towards a listeria monocytogenes infection. the blood clearance of virulent salmonella typhimurium was enhanced and the degree of clearance correlated with the dose of extract injected. the multiplication of listeria monocytogenes in spleen and liver of mice was inhibited and this inhibition was also correlated with the amount of extract injected. the absence of apparent toxicity in mice, of splenoand hepatom ...19744205595
sequential studies of experimentally induced ovine listerial abortion: clinical changes and bacteriologic examinations. 19744205016
sequential studies of experimentally induced ovine listerial abortion: pathologic changes. 19744205017
purification and characterization of hemolysin produced by listeria monocytogenes. 19744205020
the effect of sea star coelomocyte extract on cell-mediated resistance to listeria monocytogenes in mice.mice treated with sea star factor (ssf), a protein extracted from sea star coelomocytes, became highly susceptible to infection with a normally sublethal dose of listeria monocytogenes. this was in contrast to the expected result of increased resistance originally postulated because of the macrophage-activating properties of ssf. enhanced susceptibility was seen when ssf was given from 96 h before to 48 h after infection with listeria. mice pretreated with ssf failed to develop immunity to liste ...19744205878
relationship of antimicrobial cellular immunity to delayed hypersensitivity in listeriosis.the relationship of antimicrobial cellular immunity to delayed hypersensitivity (dh) was studied in mice antigenically stimulated by living listeria monocytogenes confined to diffusion chambers in peritoneal cavities or by subcutaneous inoculation of sublethal doses of the organism. mice showed dh reactions when tested 6 days after inoculation, and reactions were positive for at least 90 days in some mice. dh also became established when the mice were stimulated by antigens diffusing from perito ...19744205948
nonspecific inhibition of growth of intracellular listeria monocytogenes by lymphocyte culture products.supernatant fluids from mycobacteria-immune and mitogen-stimulated lymphocyte cultures were able to inhibit the intracellular growth of listeria in listeria-infected macrophages.19744205952
decreased susceptibility to listeria monocytogenes in mice after infection with trichinella spiralis.mice challenged intravenously with listeria monocytogenes at 7 or 21 days after trichinella spiralis infection demonstrated a higher mean lethal dose and longer survival time than normal mice. this effect of helminthic infection was abrogated after 49 days.19744205953
enhanced in vitro phagocytosis of listeria monocytogenes by human monocytes in the presence of ampicillin, tetracycline, and chloramphenicol.an in vitro system was developed to test the phagocytic activity of human macrophages grown from blood monocytes in the presence of the antibiotics ampicillin, tetracycline, and chloramphenicol. (3)h-labeled listeria monocytogenes served as test organism. subinhibitory amounts of the antibiotics enhanced the phagocytic activity significantly (p < 0.025). macrophages pretreated with the drugs in identical concentrations showed the same phagocytic activity as control cells in the absence of the dr ...19744207515
epithelial cell phagocytosis of listeria monocytogenes in the conjunctiva. 19744210273
t cell dependence of macrophage activation and mobilization during infection with mycobacterium tuberculosis.mice made t cell-deficient as adults by thymectomy and lethal irradiation, and infected with mycobacterium tuberculosis, showed a greatly reduced capacity to develop nonspecific resistance to challenge with a heterologous bacterium. the capacity to develop nonspecific resistance was restored, however, by an infusion of syngeneic thymocytes. evidence was presented which showed that the capacity of mycobacteria-infected mice to resist a lethal challenge with a heterologous organism rested on the c ...19744210333
immunity to candida albicans induced by listeria monocytogenes.immunity to candida albicans was studied in swiss-webster white female mice. lethal and sublethal infections with c. albicans did not enhance immunity to a subsequent listeria monocytogenes challenge. mice sensitized to l. monocytogenes and then challenged with c. albicans intravenously were able to reduce the population of c. albicans in their kidneys after being boosted (rechallenged) with l. monocytogenes. however, the acquired cellular immunity so induced was very short-lived. both c. albica ...19744210334
survival of listeria monocytogenes in soil and water. 19744210764
the role of activated macrophages in specific and nonspecific cytostasis of tumor cells. 19744210882
[infection by listeria monocytogenes]. 19744211470
[study of interaction between listeria and macrophages]. 19744211661
[use of acridin dyes in selective media for the isolation of listeria monocytogenes. ii. modified stuart medium: a new listeria-transport-enrichment-medium (author's transl)]. 19744211729
case records of the massachusetts general hospital. weekly clinicopathological exercises. case 35-1974. 19744211855
cell-mediated cytotoxicity against ectromelia virus-infected target cells. i. specificity and kinetics. 19744211857
dithiothreitol-dependent antilisterial activity of lysates from normal macrophages exposed in vitro to culture fluids from spleen cells of bcg-immunized mice.the effect of culture fluids from mouse lymphocytes on the antilisterial activity of normal macrophages in vitro was determined. titers of lysates of macrophages incubated with or without culture fluids from lymphocytes from control mice had titers of 10 to 270 with or without a reducing agent, dithiothreitol. lysates of macrophages after incubation with culture fluids of spleen lymphocytes from bcg-immunized mice had antilisterial titers with and without dithiothreitol of 197,000 and 810, respe ...19744211935
effects of listerial hemolysin on perfused isolated rat hearts. 19744211973
experimental listeria monocytogenes-lymphadenitis. pathohistological observations. 19744212000
pontomedullary listeriosis in renal allograft recipient. 19744212251
[listeria monocytogenes isolated from animals in sweden during 1958-1972]. 19744208540
immune response to listeria monocytogenes in rabbits and humans.rabbits were immunized with listeria antigens, staphylococcus antigen, or with both, and the course of their immune response was monitored. antibodies to listeria and staphylococcus were produced in both immunoglobulin m (igm) and immunoglobulin g (igg) classes in response to inoculation with the specific antigen. cross-responses occurred in rabbits injected only with listeria or only with staphylococcus, as well as in rabbits injected with both antigens. l. monocytogenes serotype 4d appeared to ...19744208634
[carbenicillin]. 19744207805
timely topics in microbiology, 1972: gram positive. 19744207815
[listeria infections: some aspects of human and animal infection]. 19744207840
autolysis in listeria monocytogenes: effect of inhibitors of cell wall and protein synthesis. 19744208042
[effect of food dyes on reproduction of listeria monocytogenes]. 19744208108
[pathogenesis of listeriosis in sheep]. 19744208223
synthesis of pivaloyloxymethyl 6-n'-cyanoamidinopenicillanates and the antibacterial activity of the corresponding acids. 19744148419
susceptibility of clinical isolates of bacteria to cefoxitin and cephalothin.the susceptibility of 4,929 unselected clinical isolates of bacteria to cefoxitin and cephalothin was determined by the single-disk method, using a computer-associated electronic zone analyzer to obtain, record, and process measurements of sizes of zones of inhibition. both cefoxitin and cephalothin were effective against most gram-positive strains, including staphylococcus aureus, s. epidermidis, micrococci, and all streptococci except enterococci. the three strains of listeria monocytogenes te ...197415830480
antibacterial mechanisms of the lower respiratory tract. i. immunoglobulin synthesis and secretion.immunoglobulin synthesis and secretion have been studied in the rabbit lower respiratory tract, both in the normal state and after infection with diplococcus pneumoniae or listeria monocytogenes. in vitro synthesis of immunoglobulin and specific antibody was assessed by incorporation of 14c-labeled amino acids into protein. lower respiratory tract secretions and serum were analyzed for immunoglobulin and antibody against the infecting organism. normal respiratory tract produced small quantities ...197411344547
leukocyte antimicrobial function in patients with leprosy.patients with lepromatous leprosy are unresponsive to lepromin skin-test material and possess defective lymphocyte function in vitro, including impaired mitogenesis in response to antigens of mycobacterium leprae. it has been claimed that their macrophages cannot digest m. leprae in vitro; such a defect could explain both lepromin nonreactivity and impaired lymphocyte function on the basis of failure of the afferent limb of the immune response (i.e., defective macrophage "processing" of m. lepra ...197411344550
effects of dextran sulfate 500 on cell-mediated resistance to infection with listeria monocytogenes in mice.injection of dextran sulfate 500 caused loss of antibacterial resistance. mice became more susceptible to an infection with listeria monocytogenes and were unable to develop antilisterial immunity after both active and passive immunization with passively administered spleen cells from listeria-immune donors. indirect evidence suggests that the phagocytic component of cell-mediated resistance to bacterial infection is the site of attack of dextran sulfate.197416558097
induction of resistance by listeria monocytogenes cell wall fraction.a crude cell wall fraction of listeria monocytogenes was prepared by sonic disruption and differential centrifugation of viable, washed cultures. when injected into mice, this sterile, crude cell wall fraction protected mice against an intraperitoneal challenge with 18 to 85 50% mean lethal dose of l. monocytogenes. resistance was greatly enhanced when bacterial endotoxin (lipopolysaccharide) was injected along with the cell wall fraction. resistance was measured both by enumerating the bacteria ...197416558105
[abortifacient agents in the sow].abortion in sows may be complete, or much more often partial, since the average litter size is about 10. this review describes the clinical and serological findings, mode of transmission and recommended treatment for the most common parasitic, fungal, mycotoxin, deficient, and toxic causes of abortion in sows. the most likely possibilities in france are brucellosis, leptospirosis, aujeszky virus, mycotoxin, or dietary deficiencies. the bacterialtion in french sows are brucella species, leptospi ...197512308261
monocyte separation from whole blood. a method for experimental animals. 197546200
macrophage activation by lymphocyte mediators. 197548483
rabbit immunoglobulin allotypes: structure, immunology, and genetics. 197550001
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
bacterial meningitis in infancy and childhood in lusaka (one year prospective sturdy).in approximately 10,000 admissions in a 12 months period, at university teaching hospital, lusaka 85 cases of meningitis were recorded. the signs and symptoms in these patients do not greatly differ from other similar studies in africa. the commonest organism isolated was pneumococcus. there was high mortality rate which was to a large extent due to parents not bringing their children to hospital early enough for medical treatment to be instituted. this is borne out by the fact that 50% of the c ...19755834
antitumor activity of bacterial infection. ii. effect of listeria monocytogenes on growth of a guinea pig hepatoma.growth of a guinea pig hepatoma was suppressed when tumor cells were mixed with viable listeria monocytogenes (lm) before intradermal (id) injection into syngeneic recipients. heat-killed lm were less effective than viable organisms in suppressing tumor growth. a vaccine containing oil droplets and lm cell walls lacked antitumor activity. intratumor injection of viable lm on the 7th day after id injection of tumor cells prolonged survival of guinea pigs that did not succumb to lm infection. afte ...1975164568
[ultrastructure of l-forms. ii. l-forms of listeria monocytogenes].a study was made of ultrathin sections of the stable l-forms of listeria obtained under the action of penicillin in meat-peptone-liver broth. a marked cellular polymorphism was found in the l-form culture: within the same colony cells differed in size, shape and fine structure. it is supposed that polymorphism could be partially explained by a different plasticity and premeability of cytoplasmic membrane in different types of cells of the same l-colony. the three-layer structure of the membrane ...1975164746
specific immunity and nonspecific resistance to infection: listeria, protozoa, and viruses in mice and hamsters,.specific immunity developed by mice against protozoan (toxoplasma gondii and besnoitia jellisoni) and bacterial (listeria monocytogenes) infections was compared with nonspecific protection conferred by prior infections. the results indicated that homologous immunity protected mice from more than 10-5 ld50 of t. gondii or b. jellisoni, but from only 10-2 ld50 of l. monocytogenes. heterospecific protection among these organisms was for 10-0.4 minus 10-1.2 ld50. in studies in hamsters specific immu ...1975165241
the effects of protein deprivation on cell-mediated immunity.the effect of protein insufficiency on immune responsiveness was investigated in inbred mice fed isocaloric diets low and normal in protein. mice were tested for aberrations of cell-mediated and humoral immunities. protein insufficiency enhances cell-mediated immunity while depressing or not affecting humoral immunity. cell-mediated immunity was enhanced in testing: allogeneic skin graft rejection, spleen cell responsiveness to phytohemagglutinin, the graft-vs-host reaction, macrophage function, ...1975167880
biochemical characteristics of activated macrophages. 1975169721
[listeria monocytogenes findings in raw materials of animal origin (author's transl)]. 1975124215
effect of tilorone treatment on intracellular microbial infections in specific-pathogen-free mice.specific-pathogen-free cd-1 mice were treated orally with the drug tilorone (2,7-bis[2-diethylaminoethoxy]fluoren-9-one hydrochloride) at dosages of 10 or 100 mg per kg of body weight. drug was given 24 h before challenge and then every other day for up to 15 days. growth of sublethal doses of listeria monocytogenes, mycobacterium bovis (bcg montreal), m. tuberculosis h37rv, and salmonella enteritidis in the livers and spleens of intravenously challenged mice was significantly increased compared ...1975125066
effect of oral niridazole treatment on some bacterial infections in mice.treatment of specific-pathogen-free cd-1 mice with oral doses of 10 or 100 mg of niridazole per kg of body weight given 24 h before challenge and then every other day for up to 15 days altered the growth curves for listeria monocytogenes, mycobacterium bovis (bcg montreal), m. tuberculosis h37rv, and salmonella enteritidis seen in the livers and spleens of the treated animals. niridazole in an oral dosage of 10 mg/kg reduced (but did not eliminate) tuberculin hypersensitivity in the mycobacteria ...1975125067
[effect of attenuated listeria monocytogenes cultures on the development of a sarcoma graft, mouse mammary epitheliomas and a dog carcinoma].the injection of attenuated listeria monocytogenes culture together with bp8 sarcoma cells into c3h mice prevented the taking of the graft. moreover, the intratumoral injection of attenuated listeria doubled the survival time of the animals and, in one case a regression of the tumour was observed. after intratumoral injection, in three out of five mice, the mammary carcinoma disappeared, and the course of a gingival carcinoma in a dog was slowed down.1975126749
the mediator of cellular immunity. viii. effect of mitomycin c on specifically sensitized lymphocytes. 1975233966
[changes in the antibacterial effects of organs and tissues of ornithodoros papillipes birula ticks]. 1975234572
tularaemia in the rat. i. the cellular basis on host resistance to infection.rats infected with the live vaccine strain (lvs) of francisella tularensis develop in vivo and in vitro evidence of cellular hypersensitivity and a concomitant state of cellular resistance to infection. they key role of sensitized lymphocytes in cellular resistance was domonstrated in transfer experiments. using this technique, it was shown that thoracic duct lymphocytes from francisella immune donors conferred specific antimicrobial resistance on normal recipients, whereas antiserum afforded no ...1975236983
the mediator of cellular immunity. x. interaction of macrophages and specifically sensitized lymphocytes. 1975237635
activation of alveolar macrophages after lower respiratory tract infection.alveolar macrophage function has been studied in relation to bacterial infection of the lower respiratory tract. first, lrt macrophages were examined after exposure of rabbits to listeria monocytogenes aerosols. macrophages obtained from the lrt of animals 10 to 48 days after infection were activated, as evidenced by greater adherence to culture dishes and increased ability to ingest and kill both the original infecting organism and unrelated organisms, when compared to normal alveolar macrophag ...1975239059
evaluation of bacteriological transport systems.seven commercially manufactured bacteriological transport systems, including culturette, trans-cul (with stuart and amies), handiswab, securline (with amies and amies without charcoal) and culture caddy, were evaluated to determine whether these systems were capable of maintaining the viability and constant numbers of mixtures of hardy, fastidious and anaerobic organisms over 72 hours at 25c and 4c. the results of the study indicated that if specimens are maintained in transport systems at 25c t ...1975239597
comparative inhibitory activity of bl-s640 and two other cephalosporins.in vitro antibacterial activity of bl-s640 was compared to that of cephalothin and cephalexin against gram-negative and gram-positive bacteria isolated from clinical specimens. bl-s640 demonstrated the best activity on nearly all microbial species studied, except for haemophilus influenzae and diplococcus pneumoniae against which cephalothin was slightly more active.1975239917
neonatal sepsis. a survey of eight year's experience at the louisville general hospital.information from 50 infants with neonatal septicemia from the louisville general hospital during an eight-year period (1964-1972) is presented. twenty-five infants had gram-positive and the other 25 had gram-negative organisms. e. coli (13 cases), staphylococcus (10 cases), and hemolytic streptococcus non-group a (7 cases) were the mustcommon causative microorganisms. only one of the 25 infants with gram-positive sepsis died; three with gram-negative sepsis died. listeria monocytogenes was demon ...1975803422
cell-mediated immune phenomena induced by lymphokines from splenic lymphocytes of mice with chronic staphylococcal infection.splenic lymphocytes from normal mice and from mice displaying delayed hypersensitivity to staphylococcus aureus were cultured in the presence or absence of specific staphylococcal antigens. the cell-free supernatant fluids from these lymphocyte cultures were assessed for their ability to alter the functional capacities of normal macrophages. it was found that supernatants from staphylococcus-immune cells cultured in vitro with antigen possessed migration inhibitory factor activity and also were ...1975803469
listeria cell wall fraction: a b cell mitogen.a crude cell wall-rich fraction of listeria monocytogenes contains a substance or substances which cause blast transformation and thymidine incorporation by mouse spleen cells. the substance, listeria cell wall fraction (lcwf), is a b cell mitogen in the mouse. it is not endotoxin, in that it stimulates b cells in c3h/hej mice. it is weakly mitogenic for rat spleen cells and not at all mitogenic for human peripheral blood or tonsil lymphocytes. thus, it is dissimilar to both endotoxin and purifi ...1975803536
listeriosis among willow grouse (lagopus lagopus) in captivity. 1975803676
letter: listeria meningitis during cefazolin therapy. 1975803807
delayed hypersensitivity and acquired cellular resistance in guinea pigs infected with listeria monocytogenes.randomly bred pigs of both sexes were injected intracardially with one-half of a 50% lethal dose of listeria monocytogenes. when infected animals were skin tested with 30 mug of a water-soluble extract of sonically disrupted listeria, both males and females had uniformly detectable levels of delayed hypersensitivity (dh) 4 days after infection. in males, cutaneous hypersensitivity to listeria antigens reached a peak on day 5 or 6 of infection, and high levels of dh persisted through the 7th week ...1975803918
the effect of leukocyte hydrolases on bacteria. iii. bacteriolysis induced by extracts of different leukocyte populations and the inhibition of lysis by macromolecular substances.the lysis of 14c-labeled bacteria by hydrolases of human and rabbit leukocytes was studied in vitro. while staphylococcus albus, streptococcus faecalis, and streptococcus mutans were highly susceptible to lysis, staphylococcus auresus was intermediate in its susecptibility to lysis by the leukocyte enzymes. group a streptococcus, listeria monocytogenes, shigella flexneri, escherichia coli, and mycobacterium smegmatis were very resistant to degradation by these enzymes. the lytic activity of leuk ...1975804017
superoxide production by phagocytic leukocytes.mononuclear phagocytic leukocytes, as well as polymorphonuclear leukocytes, produce and release superoxide at rest, and this is stimulated by phagocytosis. of the mouse monocytic cells studied, alveolar macrophages released the largest amounts of superoxide during phagocytosis, followed by normal peritoneal macrophages. casein-elicited and "activated" macrophages released smaller quantities. in the guinea pig, polymorphonuclear leukocytes and casein-elicited macrophages were shown to release sup ...1975804030
[diagnostic value of agglutination reaction to listeria monocytogenes]. 1975804165
bacterial endocarditis produced by listeria monocytogenes. case presentation and review of literature.a patient with endocarditis produced by listeria monocytogenes is presented, the twelfth such case reported. a review of the available literature shows that the infection has involved only the left side of the heart, has not been associated with debilitating diseases, and carries a significant mortality rate. otherwise, clinical and laboratory features have been the same as those of usual forms of bacterial endocarditis. it is pointed out that the listeria organism is commonly mistaken for erysi ...1975804251
editorial: delayed hypersensitivity and immunity in tuberculosis. 1975804285
susceptibility of thymectomized and irradiated mice to challenge with several organisms and the effect of dapsone on infection with mycobacterium leprae.b6c3f1 mice that had been thymectomized at 8 to 12 weeks of age, subjected to 950 r of whole-body x irradiation, and transfused with syngeneic bone marrow were challenged in a footpad with mycobacterium leprae or m. marinum, or intravenously or intraperitioneally with listeria monocytogenes. also, mice inoculated with m. leprae in a hind footpad were administered dapsone in the mouse chow. the thymectomized-irradiated (t + r) mice did not survive as well as non-thymectomized mice when housed in ...1975804443
requirement for a bone marrow-derived component in the expression of cell-mediated antibacterial immunity.mice were x irradiated with 400 r and 1 week post-irradiation were found to be unable to develop antilisterial immunity after active or passive immunization with immunologically committed spleen lymphocytes from listeria-immune donors. this consequence of irradiation disappeared spontaneously within 21 days of exposure to x rays. mice irradiated with as much as 900 r could be passively protected by immunologically committed lymphoid cells from listeria-immune donors 10 days after irradiation if ...1975804449
induction of acquired cellular resistance following transfer of thymus-dependent lymphocytes from syphilitic rabbits.syphilitic rabbits have previously been shown to resist challenge with listeria monocytogenes. thirty days after rabbits were infected with treponema pallidum, transfer of 4 to 6 times 10-8 viable spleen cells along with t. pallidum conferred resistance to listeria on normal recipients. treatment of the spleen cells with anti-thymus serum and complement inhibited or abolished their ability to transfer resistance to listeria. these results support the hypothesis that the ability of syphilitic rab ...1975804508
cytokinetics and fate of sensitized lymphocytes. 1975804548
antitumor activity of bacterial infection. i. effect of listeria monocytogenes on growth of a murine fibrosarcoma.growth of a murine fibrosarcoma was suppressed when tumor cells were mixed with viable listeria monocytogenes (lm) before intradermal injection into nonimmune syngeneic recepients. immunization of recipients, by intravenous injection of lm 11 days before transplantation of lm-tumor cell mixtures, eliminated the mortality associated with large doses of lm but did not alter the antitumor activity of the microorganisms. simultaneous injection of lm and tumor cells at separate sites failed to affect ...1975804566
transfer of nonspecific resistance to listeria monocytogenes using spleen cells from syphilitic rabbits (38574).the data presented show that spleen cells obtained from syphilitic rabbits can be used to transfer nonspecific resistance to listeria to normal recipients. this supports the hypotheisis that infection caused by t. pallidum induces a cell-mediated immune response.1975804700
clinical listeriosis in renal allotransplantation.two cases of listeria monocytogens meningitis among 212 kideney transplanted patients (total of 339 patient years of observation) under immunosuppression with azathioprine and prednisone are presented. both cases developed shortly after an increase of the immunosuppression. the first case appeared in a 27-year-old man 5 days after a minor increase of the azathioprine dose from 75 to 100 mg/day. the course was relatively mild, and the patient was cured by tetracycline. the second case appeared in ...1975804802
serovariants of listeria monocytogenes and other listeria species. 1975804804
new evidence for the non-infectivity of treponema pallidum for mice.we have recently shown that syphilitic rabbits are resistant to challenge with listeria monocytogenes. this resistance was thought to reflect stimulation of cell-mediated immunity by active infection with treponema pallidum. we now report data which show that the growth of listeria was not suppressed in mice inoculated with t. pallidum. re-inoculation with t, pallidum or with a large dose of an avirulent treponeme also failed to suppress the growth of listeria. these results contrast with those ...1975804955
listeria cell wall fraction: adjuvant activity in vivo and in vitro. 1975805002
effect of nonspecific stimulation on the defense mechanisms of inbred mice.acquired resistance to facultative intracellular parasites was investigated in c57bl/6j inbred mice susceptibe to salmonella typhimurium but inherently resistant to listeria monocytogenes and in a/j inbred mice which showed the reverse relationship. a/j but not c57bl/6j mice were protected against s. typhimurium challenge by s. typhimurium phenol vaccine, s. typhimurium purified rna, or l. monocytogenes purified rna. c57bl/6j but not a/j could be protected against l. monocytogenes challenge by ...1975805175
the mediator of cellular immunity. ix. the relationship between cellular hypersensitivity and acquired cellular resistance in rats infected with listeria monocytogenes.acquired resistance to the intracellular bacterial parasite, listeria monocytogenes can be transferred to normal recipients by thoracic duct lymphocytes or peritoneal exudate cells obtained from rats infected with this organism; the appearance of protective cells in thoracic duct lymph coincides with the development in the donors of delayed-type hypersensitivity to listeria antigens and accumulation in induced peritoneal exudates of cells which are responsive to these antigens in the migration i ...1975805208
in-vitro effect of edta-tris-lysozyme solutions on selected pathogenic bacteria.the in-vitro effect of edta-tris-lysozyme solution on 16 pathogenic bacteria of medical or veterinary importance was determined. marked decreases in bacterial count occurred with pseudomonas aeruginosa, escherichia coli, moraxella osloensis and campylobacter fetus, and smaller decreses with salmonella typhimurium, shigella boydii, aeromonas hydrophila, proteus mirabilis, listeria monocytogenes and erysipelothrix insidiosa. the test solution had no effect on klebsiella ozaenae, brucella canis, co ...1975805241
[the rate of healthy carriers of listeria monocytogenes].the feces of 318 healthy adults were examined for l. monocytogenes by means of the cold enrichment and of two different selective media (nalidixic acid-trypaflavin-serum agar; braveny medium). 15 persons (4.7 percent) proved to be carriers. three of the 15 strains only caused hemolysis on sheep blood agar and belonged to serotypes 1/2b, 1/2c and 3c. the nonhemolytic strains without exception belonged to serotypes 4f and 4g. the braveny medium proved to be superior to the nalidixic acid-trypaflav ...1975805357
nursing care study: an unusual cause of septicaemia in the neonate. 1975805420
listeroisis in immunosuppressed patients. a cluster of eight cases.bactermia due to listeria monocytogenes developed in eight patients who were receiving immunosuppresive medications during a 15 month period at one hospital. seven survived. meningitis was documented in only the four who received kidney transplants. their neurologic signs were minimal, indicating a need to treat any immunosuppressed patient with listeria bacteremia for meningitis. during this period the incidence of listeria bactermia in immunosuppressed patients greatly exceeded that previously ...1975805536
resistance to infection with nocardia asteroides.mechanisms of host resistance to nocardia asteroides were studied in mice. two to six weeks after intraperitoneal or intravenous immunization with viable n. asteroides, mice were significantly resistant to intraperitoneal challenge with ld50-100 of n. asteroides in gastric mucin when compared with control (unimmunized) mice (p smaller than 0.03). resistance could not be transferred to normal mice with serum (1.5 ml administered intraperitoneally) or spleen cells (10-8 cells administered intraven ...1975805811
[nature of bacteriocins].the bacteriocins comprise a large, heterogeneous group of bactericidal substances produced by bacteria from widely differing species. the best known bacteriocins are the colicins. some aspects of research on colicins are discussed especially their chemical nature and mode of action, and their genetic determinants.1975806026
listeria monocytogenes. isolation from sheep and goats in northern norway. serogrouping and some biochemical reactions.listeriosis is a zoonosis of world-wide importance in many different animal species, especially cattle, sheep and goats. this report presents results of examinations of listeria monocytogenes strains from sheep and goats in northern norway.1975806057
isolation of listeria monocytogenes type 04 from cases of keratoconjunctivitis in cattle and sheep.keratoconjunctivitis in cattle and sheep is usually recognized as a summer problem. the infective agency usually isolated from cattle is moraxella bovis. in sheep neisseria ovis and rickettsia (colesiota) conjunctivae are expected to be found. this report describes isolations of listeria monocytogenes from eye inflammations in housed cattle and sheep.1975806058
letter: isolating listeria monocytogenes. 1975806160
portal hypertension following exchange blood transfusion with complications of listeria meningitis.a male infant, 17 months, developed portal hypertension after two exchange blood transfusions and a prolonged umbilical vein catheterization during the neonatal period. clinical course was characterized by an early onset of splenomegaly and after a latent period of time by a massive melena and hematemesis precipitated by listeria meningitis. treatment for portal hypertension consisted of splenectomy and proximal gastric devascularization. the importance of proper positioning of the catheter and ...1975806184
bacterial infections of the nervous system; etiologic and therapeutic aspects. 1975806402
macrophage activation in mice lacking thymus-derived (t) cells. 1975806463
effect of cell dose and dose of infectious agent on expression of protection against listeria monocytogenes and ectromelia virus in cell transfer models.two parameters (immune cell dose and dose of infectious agent) influencing the expression of protection by transferred immune spleen cells in listeria monocytogenes and ectromelia virus infection in mice were investigated. first, when recipient mice were infected with a constant dose of ectromelia virus, a linear relationship between log(10) cells transferred and the protection obtained expressed as log(10) decrease in virus plaque-forming units per spleen was obtained, as has been described pre ...1975806519
activation of mouse peritoneal cells to kill listeria monocytogenes by t-lymphocyte products.an in vitro system has been used to demonstrate that glass-adherent mouse peritoneal cells can be activated to kill intracellular listeria monocytogenes by antigen-stimulated t-lymphocytes derived from immunized mice. the soluble products of such stimulated lymphocyte cultures could only be shown to similarly activate peritoneal cells if the antigen used in both the immunization and lymphocyte stimulation was also present on the target intracellular organism.1975806534
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