| genome diversification in phylogenetic lineages i and ii of listeria monocytogenes: identification of segments unique to lineage ii populations. | thirteen different serotypes of listeria monocytogenes can be distinguished on the basis of variation in somatic and flagellar antigens. although the known virulence genes are present in all serotypes, greater than 90% of human cases of listeriosis are caused by serotypes 1/2a, 1/2b, and 4b and nearly all outbreaks of food-borne listeriosis have been caused by serotype 4b strains. phylogenetic analysis of these three common clinical serotypes places them into two different lineages, with serotyp ... | 2003 | 12949110 |
| modulation of hepatic cytochrome p450 during listeria monocytogenes infection of the brain. | hepatic cytochrome p450 enzymes can be modulated during systemic infections. inflammatory responses in the brain have also been shown to cause a significant decrease in the levels and activities of important cytochrome p450 isoforms in the liver. we determined some of the effects of central nervous system (cns) listeria monocytogenes infection on hepatic cytochrome p450 systems in rats. intracerebroventricular injection of l. monocytogenes resulted in a time-dependent modulation of cyp1a, cyp2b, ... | 2003 | 12950004 |
| genes controlled by the essential yycg/yycf two-component system of bacillus subtilis revealed through a novel hybrid regulator approach. | the yycg/yycf two-component system, originally identified in bacillus subtilis, is very highly conserved and appears to be specific to low g + c gram-positive bacteria. this system is required for cell viability, although the basis for this and the nature of the yycf regulon remained elusive. using a combined hybrid regulator/transcriptome approach involving the inducible expression of a phop'-'yycf chimerical protein in b. subtilis, we have shown that expression of yoch, which encodes a potenti ... | 2003 | 12950927 |
| sustained response initiation is required for t cell clonal expansion but not for effector or memory development in vivo. | the factors determining whether an immune response is productive are poorly understood. to understand the circumstances affecting the early stage of the immune response which determine whether memory is generated, the cd8 t cell response was mapped in detail following immunization with live or heat-killed bacteria. our results demonstrate that even in response to a weak immunogen, functional memory cell development is linked to effector cell induction in lymphoid and nonlymphoid tissues. the mai ... | 2003 | 12960304 |
| bacterial pathogens modulate an apoptosis differentiation program in human neutrophils. | human polymorphonuclear leukocytes (pmns or neutrophils) are essential to the innate immune response against bacterial pathogens. recent evidence suggests that pmn apoptosis facilitates resolution of inflammation during bacterial infection. although progress has been made toward understanding apoptosis in neutrophils, very little is known about transcriptional regulation of this process during bacterial infection. to gain insight into the molecular processes that facilitate resolution of infecti ... | 2003 | 12960399 |
| influence of cadmium and zinc on the mice resistance to listeria monocytogenes infection. | the objective of this study was to examine the effect of chronic exposure to cadmium and zinc on the mice resistance to experimental listeria monocytogenes infection. | 2003 | 12960457 |
| surviving the acid test: responses of gram-positive bacteria to low ph. | gram-positive bacteria possess a myriad of acid resistance systems that can help them to overcome the challenge posed by different acidic environments. in this review the most common mechanisms are described: i.e., the use of proton pumps, the protection or repair of macromolecules, cell membrane changes, production of alkali, induction of pathways by transcriptional regulators, alteration of metabolism, and the role of cell density and cell signaling. we also discuss the responses of listeria m ... | 2003 | 12966143 |
| [listeria pathogenicity factors and their role in pathogenesis and laboratory diagnosis of listeriosis]. | the mechanisms of relationships between listeria and eukaryotic cells on the level of the main biomolecules are analyzed. these mechanisms determine the penetration and multiplication of listeria and their importance for the pathogenesis of listeriosis. the theoretical and practical aspects of the regulation of the expression of pathogenicity factors in listeria, connected with the activation of the regulatory protein prfa and autoregulatory mechanisms, are considered. the elimination of the aut ... | 2003 | 12966873 |
| expression of cellular antigens of listeria monocytogenes that react with monoclonal antibodies c11e9 and em-7g1 under acid-, salt- or temperature-induced stress environments. | to study the expression of cellular antigens of listeria monocytogenes that react with monoclonal antibodies (mabs) c11e9 and em-7g1 under acid-, salt- or temperature-induced stress environments. | 2003 | 12969290 |
| betaine and carnitine uptake systems in listeria monocytogenes affect growth and survival in foods and during infection. | to establish the relative importance of the osmo- and cryoprotective compounds glycine betaine and carnitine, and their transporters, for listerial growth and survival, in foods and during infection. | 2003 | 12969299 |
| a comparative heat inactivation study of indigenous microflora in beef with that of listeria monocytogenes, salmonella serotypes and escherichia coli o157:h7. | thermal inactivation of a mixture of five strains of listeria monocytogenes, four strains of escherichia coli o157:h7 and eight serotypes of salmonella were compared with that of indigenous microflora in 75% lean ground beef. | 2003 | 12969491 |
| quantification of listeria spp. contamination on shell and flesh of cooked black tiger prawns (penaeus monodon). | to quantify listeria levels on the shell and flesh of artificially contaminated cooked prawns after peeling, and determine the efficacy of listeria innocua as a model for l. monocytogenes in this system. | 2003 | 12969494 |
| a novel sensor of nadh/nad+ redox poise in streptomyces coelicolor a3(2). | we describe the identification of rex, a novel redox-sensing repressor that appears to be widespread among gram-positive bacteria. in streptomyces coelicolor rex binds to operator (rop) sites located upstream of several respiratory genes, including the cydabcd and rex-hemacd operons. the dna-binding activity of rex appears to be controlled by the redox poise of the nadh/nad+ pool. using electromobility shift and surface plasmon resonance assays we show that nadh, but not nad+, inhibits the dna-b ... | 2003 | 12970197 |
| intracellular accumulation and activity of ampicillin used as free drug and as its phthalimidomethyl or pivaloyloxymethyl ester (pivampicillin) against listeria monocytogenes in j774 macrophages. | to determine the intracellular accumulation in a macrophage cell line of ampicillin and ampicillin esters, and to measure their activity against intracellular listeria monocytogenes. | 2003 | 12972457 |
| maturation of lipoproteins by type ii signal peptidase is required for phagosomal escape of listeria monocytogenes. | lipoproteins of gram-positive bacteria are involved in a broad range of functions such as substrate binding and transport, antibiotic resistance, cell signaling, or protein export and folding. lipoproteins are also known to initiate both innate and adaptative immune responses. however, their role in the pathogenicity of intracellular microorganisms is yet poorly understood. in listeria monocytogenes, a gram-positive facultative intracellular human pathogen, surface proteins have important roles ... | 2003 | 12975369 |
| [letal meningitis in man caused by listeria monocytogenes]. | | 1952 | 12982463 |
| [serology of listeria monocytogenes]. | | 1952 | 13006904 |
| methods for isolation of listeria monocytogenes from sheep. | | 1953 | 13031013 |
| [bacteriological and experimental studies on listeria monocytogenes pirie]. | | 1953 | 13079145 |
| meningitis due to listeria monocytogenes in a case of disseminated lupus erythematosus. | | 1953 | 13092083 |
| [listeriosis and its cause; listeria monocytogenes]. | | 1953 | 13103293 |
| distribution of listeria monocytogenes in listeriosis of sheep. | | 1953 | 13109239 |
| the association of listeria monocytogenes with abortion; review of the literature and report of a bovine case. | | 1954 | 13129141 |
| susceptibility of listeria monocytogenes to antimicrobial peptides. | we assessed the susceptibility of several pathogenic and non-pathogenic listeria species to antimicrobial peptides of animal and plant origin. human defensins and thionins were highly inhibitory, whereas protamine, snakin and magainin showed an intermediate effect. a temperature dependence in the activity of potato defensin was observed for listeria monocytogenes and listeria ivanovii. prfa* l. monocytogenes mutants, that overexpress constitutively prfa-dependent genes, were sensitive to the pep ... | 2003 | 13129614 |
| listeria monocytogenes sigma b regulates stress response and virulence functions. | while the stress-responsive alternative sigma factor sigma(b) has been identified in different species of bacillus, listeria, and staphylococcus, the sigma(b) regulon has been extensively characterized only in b. subtilis. we combined biocomputing and microarray-based strategies to identify sigma(b)-dependent genes in the facultative intracellular pathogen listeria monocytogenes. hidden markov model (hmm)-based searches identified 170 candidate sigma(b)-dependent promoter sequences in the strain ... | 2003 | 13129943 |
| [methods and evaluation of determination of sulfonamide resistance by means of a modified plate tests in listeria monocytogenes]. | | 1953 | 13137225 |
| listeria monocytogenes meningitis; summation of literature and report of two new cases. | | 1954 | 13137627 |
| [in vitro sensitivity of listeria monocytogenes to sulfonamides and antibiotics]. | | 1954 | 13179877 |
| pathogenesis of listeria monocytogenes infections in natural host. i. rabbit studies. | | 1954 | 13184166 |
| pathogenesis of listeria monocytogenes infections in natural hosts. ii. sheep studies. | | 1954 | 13184167 |
| [the biotypes of listeria monocytogenes]. | | 1954 | 13196440 |
| listeria monocytogenes in human infections; bacteriologic study of 2 cases. | | 1954 | 13197325 |
| the isolation of listeria monocytogenes from the bovine cervix. | | 1954 | 13211571 |
| listeria monocytogenes meningitis in an infant. | | 1955 | 13230932 |
| listeria monocytogenes and abortion in a cow. | | 1955 | 13233110 |
| [serological cross-reaction between listeria monocytogenes and enterococcus]. | | 1955 | 13248039 |
| subacute bacterial endocarditis due to listeria monocytogenes. | | 1955 | 13248879 |
| septicaemia of the newborn due to listeria monocytogenes. | | 1955 | 13250472 |
| [experimental reticulohistiocytomatosis by listeria monocytogenes]. | | 1955 | 13255913 |
| [granulomatosis infantisepticum of the newborn; possible listeria monocytogenes pirie infection; report of three cases]. | | 1955 | 13257640 |
| agglutinating antibodies for listeria monocytogenes in human serum. | | 1955 | 13263297 |
| [sucrose indicator plate for identification of listeria monocytogenes]. | | 1955 | 13300797 |
| [listeria monocytogenes meningitis; 2 observations]. | | 1956 | 13311930 |
| antigenic relationships between listeria monocytogenes and staphylococcus aureus. | | 1956 | 13316616 |
| [a case of listeria monocytogenes infection in a newborn infant]. | | 1956 | 13321080 |
| meningitis due to listeria monocytogenes: case report. | | 1956 | 13324412 |
| abortion and pre- or postnatal death of young due to listeria monocytogenes. iii. studies in ruminants. | | 1956 | 13340117 |
| listeria-monocytogenes meningitis; case report. | | 1956 | 13352768 |
| [some factors influencing the virulence of listeria monocytogenes]. | | 1956 | 13374755 |
| studies on the mechanism of infection of the brain with listeria monocytogenes. | | 1957 | 13394833 |
| [listeria monocytogenes in rodent]. | | 1956 | 13395608 |
| [study of experimental reticulohistiocytomatosis induced by listeria monocytogenes]. | | 1956 | 13397567 |
| reaction of splenic tissue in culture to listeria monocytogenes. | | 1957 | 13400901 |
| [possibilities of enrichment of listeria monocytogenes in liquid preliminary cultures]. | | 1956 | 13401967 |
| [clinical manifestations of prenatal listeria monocytogenes (pirie) infection]. | | 1957 | 13402596 |
| cold agglutinins in listeria monocytogenes infections. | | 1957 | 13410163 |
| [meningoencephalitis caused by listeria monocytogenes]. | | 1957 | 13422425 |
| [meningitis caused by listeria monocytogenes in newborn; a cured case]. | | 1957 | 13425700 |
| [mixed tuberculous infection with listeria monocytogenes]. | | 1957 | 13430257 |
| [an attempt to isolate l forms of listeria monocytogenes]. | | 1957 | 13437330 |
| [findings of listeria monocytogenes in rodents]. | | 1957 | 13437331 |
| [listeria monocytogenes as an etiologic factor in abortion]. | | 1956 | 13439763 |
| two cases of meningitis due to erysipelothrix monocytogenes. | | 1957 | 13463113 |
| septicemia of the newborn due to listeria monocytogenes; a case report and review of the literature. | | 1957 | 13476320 |
| immunization of mice against listeria monocytogenes. | | 1957 | 13480995 |
| [four recent cases of meningitis due to listeria monocytogenes]. | | 1957 | 13494405 |
| a rapid method for the detection of colonies of listeria monocytogenes. | | 1957 | 13497091 |
| the effect of pasteurization on listeria monocytogenes. | | 1958 | 13500269 |
| [morphology & serology of listeria monocytogenes]. | | 1957 | 13504319 |
| listeria monocytogenes infection and its relation to infectious mononucleosis; report of a case. | | 1958 | 13504480 |
| listeria monocytogenes; a stranger in your laboratory. | | 1958 | 13508664 |
| [listeria monocytogenes (pirie) infections in the administrative district of dusseldorf]. | | 1958 | 13512052 |
| fatal listeria monocytogenes meningitis in a child aged 3 months. | | 1958 | 13539232 |
| [2 cases of suppurative meningitis caused by listeria monocytogenes]. | | 1958 | 13540357 |
| listeria monocytogenes meningitis. | | 1958 | 13545724 |
| [not available]. | | 1958 | 13548501 |
| abortion attributed to listeria monocytogenes infection in a range herd of beef cattle. | | 1958 | 13549305 |
| infection due to listeria monocytogenes. | | 1958 | 13565133 |
| [meningitis due to listeria monocytogenes type ii in infant]. | | 1958 | 13566323 |
| listeria (erysipelothrix) monocytogenes meningitis in the newborn. | | 1958 | 13576281 |
| [differentiation between listeria monocytogenes & erysipelothrix rhusiopathiae using triphenyltetrazolium chloride]. | | 1958 | 13604904 |
| [human infections caused by listeria monocytogenes]. | | 1958 | 13615123 |
| serological types of listeria monocytogenes occurring in the united states. | | 1959 | 13620666 |
| [listeria monocytogenes infections in men; review of main symptoms]. | | 1958 | 13625413 |
| [listeria monocytogenes infection with meningitis]. | | 1958 | 13625417 |
| [the s-form of listeria monocytogenes, as compared with colonies of listeria-like bacteria]. | | 1958 | 13625996 |
| on the isolation of listeria monocytogenes from biological specimens. | | 1959 | 13626986 |
| [meningoencephalitis caused by listeria monocytogenes; report of a case]. | | 1959 | 13627569 |
| [two cases of meningitis caused by listeria monocytogenes in luxembourg]. | | 1959 | 13638773 |
| [a simple method for rapid differentiation of listeria monocytogenes from erysipelithrix rhusiopathiae]. | | 1959 | 13648764 |
| listeria monocytogenes meningitis: report of two cases. | | 1959 | 13660058 |
| listeria monocytogenes isolated from patient with congenital heart disease. | | 1959 | 13668957 |
| studies on the pathogenicity of listeria monocytogenes. i. protein substance isolated from cells of listeria monocytogenes enhancing listeric infection. | | 1959 | 13669649 |
| studies on the pathogenicity of listeria monocytogenes. ii. influence of substances isolated from cells of listeria monocytogenes on experimental listeriosis in white mice. | | 1959 | 13669650 |
| a case of meningitis caused by listeria monocytogenes. | | 1959 | 13674368 |
| [meningitis caused by listeria monocytogenes in the newborn]. | | 1959 | 13676209 |
| biomimetic systems for studying actin-based motility. | actin polymerization provides a major driving force for eukaryotic cell motility. successive intercalation of monomeric actin subunits between the plasma membrane and the filamentous actin network results in protrusions of the membrane enabling the cell to move or to change shape. one of the challenges in understanding eukaryotic cell motility is to dissect the elementary biochemical and biophysical steps that link actin polymerization to mechanical force generation. recently, significant progre ... | 2003 | 13678615 |
| [meningitis and septicemia caused by "listeria monocytogenes"]. | | 1960 | 13685029 |
| listeria monocytogenes meningitis: brief review of the literature and report of case. | | 1960 | 13693992 |
| listeria monocytogenes infection in children. | | 1961 | 13694511 |