Publications
| Title | Abstract | Year(sorted descending) Filter | PMID Filter |
|---|
| antibacterial effect of water-soluble arrowroot (puerariae radix) tea extracts on foodborne pathogens in ground beef and mushroom soup. | antimicrobial activity of water-soluble arrowroot tea extract was evaluated against escherichia coli o157:h7, salmonella enterica serotype enteritidis, listeria monocytogenes, and staphylococcus aureus in ground beef and mushroom soup. the concentrations of arrowroot tea used were 0, 3, and 6% (wt/wt) for ground beef and 0, 1, 5, and 10% (wt/vol) for mushroom soup. samples without tea extract were considered controls. each sample was stored for 0, 1, 3, 5, and 7 days at 7 degrees c for ground be ... | 2004 | 15453588 |
| intraspecies variability in the dose-response relationship for salmonella enteritidis associated with genetic differences in cellular immune response. | to evaluate the effects of differences in host cellular immunity, we studied the dose-response relationship for infection with salmonella enterica serovar enteritidis (se) in two different rat strains, skewed towards t helper 1 (th1, lewis rats) or t helper 2 (th2, brown norway rats) immunoregulation. rats were exposed orally to different doses of se after overnight starvation and neutralization of gastric acid. animals were observed for clinical signs of disease, fecal excretion and se load in ... | 2004 | 15453596 |
| salmonella enteritidis outbreak associated with a school-lunch dessert: cross-contamination and a long incubation period, japan, 2001. | a salmonella enteritidis (se) outbreak in japan was investigated with an observational study, analytical epidemiology and bacteriological examination (including phage typing). the outbreak occurred among 96 schoolchildren, and was caused by se phage type 1. the outbreak source was dessert buns served at a school lunch (rr 42.55, 95 % ci 5.93-305.11, p < 0.001). the buns were probably cross-contaminated from eggs from a factory with a history of se-contaminated products. the incubation period was ... | 2004 | 15473150 |
| [no floroquinolone resistance in non typhoidal salmonellas from hospitalized persons in an endemic area of apulia, italy]. | non typhi-salmonella is the most common cause of hospitalization or death associated with acute diarrhea. it is usually a self limiting disease and antibiotic therapy is not required, but in immunocompromised people it is essential. increasing antimicrobial resistance in salmonella, in future, would limit the therapeutic options. during 2002, 198 persons were hospitalized for acute gastroenteritis. the 55% of cases were female, the age ranged between 4 and 94 years and the 25% of them were > 60 ... | 2004 | 15473379 |
| a nosocomial outbreak of salmonella enteritidis associated with lyophilized enteral nutrition. | outbreaks of salmonella spp. gastro-enteritis in hospitals are of concern because of the increased susceptibility of patients and associated high morbidity. this study is a report of a nosocomial outbreak of salmonella enteritidis associated with enteral nutrition. in december 1999, one sample of enteral feed tested positive for s. enteritidis. during the subsequent 6 weeks, eight cases of nosocomial salmonellosis occurred. patients involved in the outbreak were aged 19-79 years (median = 36.5), ... | 2004 | 15474183 |
| genotypic diversity of salmonella enteritidis isolates from sporadic patients in limited area during one year. | our aims were to investigate the genetic epidemiology of salmonella enterica serovar enteritidis (s. enteritidis) isolates using computerized analysis of restriction enzyme cleavage patterns. | 2004 | 15474626 |
| [epidemiological analysis of salmonella enteritidis isolates using pulsed-field gel electrophoresis and bacteriophage typing over the period of april 2000 to march 2003 in gifu prefecture]. | we examined a total of 151 salmonella enterica serovar enteritidis strains isolated in gifu prefecture during the period from april 2000 to march 2003 by using bacteriophage typing and pulsed-field gel electrophoresis (pfge). bacteriophage typing classified them into twelve phage types (pt) and rdnc (reacted but did not conform). the predominant phage type was pt47 (34.4%) followed by pt1 (21.9%), pt4 (16.6%) and rdnc (11.3%). xbai- and blni-digested pfge analyses identified 17 and 44 pfge patte ... | 2004 | 15478644 |
| antimicrobial resistance and phage types of human and non-human salmonella enterica isolates in ireland, 1998-2003. | between 1998 and 2003, 5,161 isolates (3,182 human) of salmonella enterica were received by the national salmonella reference laboratory of ireland. serotyping, antimicrobial susceptibility testing and phage typing were performed by standard methods. the number of isolates of s. enterica serovar typhimurium decreased from 579 (80%) in 1998 to 208 (19%) in 2003, while s. enterica serovar enteritidis increased from 59 (8%) in 1998 to 219 (20%) in 2003. definitive (dt) phage types 104 and dt104b ac ... | 2004 | 15481212 |
| salmonellosis and ulcerative colitis. a causal relationship or just a coincidence. | coincidence of salmonellosis and ulcerative colitis is a rare clinical problem. salmonella infection was reported to complicate the ulcerative colitis, as either facilitating its occurrence or activation. in this article, we present a case with salmonellosis whose clinicopathological findings also suggested ulcerative colitis. the patient improved rapidly after taking additional mesalazine to norfloxacin treatment. we conclude that salmonella infection might have either been coincidentally prese ... | 2004 | 15494829 |
| mucosal administration of flagellin induces innate immunity in the mouse lung. | nonsurgical intratracheal instillation of 1 microg of purified, recombinant flagellin in several strains of mice stimulated a transient innate immune response in the lung characterized by the infiltration of neutrophils and the rapid production of tumor necrosis factor alpha, interleukin 6, granulocyte colony-stimulating factor, and the chemokines keratinocyte-derived chemokine, mip1alpha, and mip-2. | 2004 | 15501801 |
| egg quality assurance programs and egg-associated salmonella enteritidis infections, united states. | a salmonella enterica serovar enteritidis epidemic in the united states began in 1978, spread to much of the country in the following decade, and began declining in 1996. we examined correlations between annual changes in s. enteritidis incidence in humans and introductions of egg quality assurance programs (eqaps) in some states to reduce s. enteritidis contamination of eggs. before eqaps, 62% of the changes in s. enteritidis incidence were higher than the baseline for each state. after eqaps, ... | 2004 | 15504264 |
| occurrence of salmonella enteritidis phage type 29 in austria: an opportunity to assess the relevance of chicken meat as source of human salmonella infections. | assuming that the various phage types of salmonella enteritidis (s. enteritidis) are largely equally virulent, the importance of certain foods as sources of infection for human salmonellosis can be deduced from differences in the distribution of phage types in human and non-human samples. in 2002, s. enteritidis phage type 29 (pt29) was first isolated from non-human test samples in austria. s. enteritidis pt29 accounted for 44 (27.7%) of 159 s. enteritidis strains, derived from veterinary sample ... | 2004 | 15507727 |
| influence of a nonfavorable environment, egg white, on resistance to heat and disinfectant, adhesion, and virulence of salmonella enteritidis. | although liquid egg white may be subjected to limited heat treatment when it is used in the fabrication of various foodstuffs, pathogenic bacteria such salmonella enteritidis could persist in this environment. liquid egg white is not a favorable medium for salmonella growth because of its alkaline ph and iron deficiency and the presence of ovotransferrin. microorganisms adapted to a nonfavorable environment are often more resistant to stresses than are their laboratory-cultured counterparts. the ... | 2004 | 15508640 |
| surface disinfection tests with salmonella and a putative indicator bacterium, mimicking worst-case scenarios in poultry houses. | surface disinfection studies mimicking worst-case scenarios in badly cleaned poultry houses were made with 3 bacterial isolates (salmonella enteritidis, salmonella senftenberg, and enterococcus faecalis), and 3 1% disinfectant solutions, formaldehyde (f; 24.5% vol/vol), glutaraldehyde/benzalkonium chloride (g; bio komplet plus), and a peroxygen compound (p; virkon s), with world health organization (who) standard hard water as a control. materials (concrete paving stones, steel feed chain links, ... | 2004 | 15510546 |
| detection of campylobacter or salmonella in turkey semen and the ability of poultry semen extenders to reduce their concentrations. | campylobacter and salmonella are the most commonly reported pathogens causing foodborne illness in the united states. in turkeys, the potential that semen used for artificial insemination is contaminated with these foodborne pathogens has not been investigated. because semen on turkey farms is pooled and then used to inseminate multiple hens, contaminated semen could easily spread these bacteria throughout entire flocks via artificial insemination. the objectives of this study were to 1) determi ... | 2004 | 15510560 |
| control of foxp3+ cd25+cd4+ regulatory cell activation and function by dendritic cells. | naturally occurring cd4+cd25+ regulatory t (tr) cells play crucial roles in normal immunohomeostasis. cd4+cd25+ tr cells exhibit a number of interesting in vitro properties including a 'default state' of profound anergy refractory to conventional t cell stimuli. we investigated the in vitro activation requirements of cd4+cd25+ tr cells using bone marrow-derived dc, which as professional antigen presenting cells (apc) can support the activation of normal naive t cells. comparison of different apc ... | 2004 | 15520045 |
| salmonella enteritidis in bosnia and herzegovina. | a comprehensive retrospective analysis of human salmonella enteritidis isolates in the zenica-doboj canton of bosnia and herzegovina was conducted by inquiry and questionnaire. in the period 1998-2000, 299 isolates of salmonella spp. were recorded, of which s. enteritidis accounted for 74.2%. the isolation rate of s. enteritidis increased during this period, from 12.7 to 25.5 isolates/year/100,000 population. isolates were obtained all year round, mostly from sporadic cases of infection or limit ... | 2004 | 15522013 |
| [trends in the incidence of salmonellosis and campylobacteriosis in the czech republic]. | salmonellosis and campylobacteriosis are the most frequently reported acute enteric diseases of infectious origin in the czech republic. epidemiological data on salmonellosis and campylobacteriosis have been reportable in this country since 1951 and 1984, respectively. in 2003, 53,486 cases of acute enteric infections were reported: 26,899 (52%) diagnosed as salmonellosis and 20,063 (almost 40%) diagnosed as campylobacteriosis. in 1989, the annual incidence of salmonellosis was three times as hi ... | 2004 | 15524267 |
| antimicrobial effect of water extract of sumac (rhus coriaria l.) on the growth of some food borne bacteria including pathogens. | the antimicrobial effect of water extracts of sumac (rhus coriaria l.) at concentrations of 0.1%, 0.5%, 1.0%, 2.5% and 5.0% (w/v), non-neutralized and after neutralization to ph 7.2+/-0.1, was studied on the growth of 12 bacterial strains (six gram positive strains and six gram negative strains), mostly food borne including pathogens. it was found to be effective against all the test organisms with gram positive strains being more sensitive than gram negative strains. significant differences (p< ... | 2004 | 15527919 |
| multiple roles of clan (caspase-associated recruitment domain, leucine-rich repeat, and naip ciia het-e, and tp1-containing protein) in the mammalian innate immune response. | naip ciia het-e and tp1 (nacht) family proteins are involved in sensing intracellular pathogens or pathogen-derived molecules, triggering host defense responses resulting in caspase-mediated processing of proinflammatory cytokines and nf-kappab activation. caspase-associated recruitment domain, leucine-rich repeat, and nacht-containing protein (clan), also known as ice protease-activating factor, belongs to a branch of the nacht family that contains proteins carrying caspase-associated recruitme ... | 2004 | 15528373 |
| descriptive study of california egg layer premises and analysis of risk factors for salmonella enterica serotype enteritidis as characterized by manure drag swabs. | this cross-sectional, double-blind study reports the prevalence of salmonella enterica serotype enteritidis (se) on california egg layer premises using single vs. pooled manure drag swabs and presents a description of egg production and management systems in the state and an initial analysis of risk factors for se. the study included 91% of all known eligible egg premises in california, representing the majority of eggs produced in the state. the overall prevalence of se on california egg layer ... | 2004 | 15529977 |
| the occurrence and distribution of salmonella enteritidis and other serovars on california egg laying premises: a comparison of two sampling methods and two culturing techniques. | between the summer of 1998 and the winter of 2000, salmonella analysis was performed on 2128 single and 532 pooled manure drag swabs obtained from 133 california commercial egg laying farms. the isolation of salmonella from all rows and from all flocks using single or pooled swabs was 80% and 92%, respectively. hence, there was no statistical difference between single vs. pooled swabs in terms of identifying salmonella on a row or flock basis. a total of 14 serogroups comprising 44 serotypes wer ... | 2004 | 15529981 |
| [erythema nodosum: etiological changes in the last two decades]. | to study the etiological factors associated with erythema nodosum in children hospitalized between january 1985 and december 2003. | 2004 | 15530319 |
| high prevalence of multiple resistance to antibiotics in salmonella serovars isolated from a poultry slaughterhouse in spain. | salmonellosis is a major foodborne infection in spain, and strains that are resistant to a great variety of antibiotics have become a major public health concern. the aim of this study was to determine the level of antibiotic resistance in 133 salmonella isolates obtained from a poultry slaughterhouse in zaragoza (ne spain). antimicrobial resistance testing was performed by disk diffusion method using 19 antibiotics. results were interpreted following the nccls criteria. overall, the highest per ... | 2004 | 15530748 |
| molecular and epidemiologic analysis of a county-wide outbreak caused by salmonella enterica subsp. enterica serovar enteritidis traced to a bakery. | an increase in the number of attendees due to acute gastroenteritis and fever was noted at one hospital emergency room in taiwan over a seven-day period from july to august, 2001. molecular and epidemiological surveys were performed to trace the possible source of infection. | 2004 | 15541186 |
| [interaction of neomycin with other antibiotics on selected bacterial strains]. | antimicrobial combinations are used most frequently to provide broad-spectrum empirical coverage in the treatment of bacterial infections. however, combination of two antibiotics may not influence their activity, may lead to synergy or antagonism in the activity. neomycin may be combined with one of the following antibiotics: ampicillin, procaine penicillin, gramicidin, bacitracin, polymyxin b, lincomycin, oxytetracycline, and erythromycin in some human and veterinary multiantibiotic drugs distr ... | 2004 | 15544091 |
| direct detection of bacterial pathogens in representative dairy products using a combined bacterial concentration-pcr approach. | to develop a simple, rapid method to concentrate and purify bacteria and their nucleic acids from complex dairy food matrices in preparation for direct pathogen detection using polymerase chain reaction (pcr). | 2004 | 15546401 |
| spectroscopic quantification of bacteria using artificial neural networks. | fourier transform-infrared spectroscopy, in conjunction with artificial neural networks, has been used for identification and classification of selected foodborne pathogens. five bacterial species (enterococcus faecium, salmonella enteritidis, bacillus cereus, yersinia enterocolitica, shigella boydii) and five escherichia coli strains (o103, o55, o121, o30, o26) suspended in phosphate-buffered saline were enumerated to provide seven different concentrations ranging from 10(9) to 10(3) cfu/ ml. t ... | 2004 | 15553640 |
| antibacterial effect of water-soluble tea extracts on foodborne pathogens in laboratory medium and in a food model. | the microbial inhibition of foodborne pathogens was determined in brain heart infusion broth with 10% (wt/vol) water-soluble extracts of green, jasmine, black, dungglre, and oolong tea against escherichia coli o157:h7, salmonella enterica serovar enteritidis, listeria monocytogenes, and staphylococcus aureus. the mixed culture (approximately 6.0 log cfu/ml), which was composed of the four pathogens, was inoculated into brain heart infusion broth with and without tea extracts. after incubation at ... | 2004 | 15553649 |
| residual feed intake and its effect on salmonella enteritidis infection in growing layer hens. | previous phenotypic selection on residual feed intake (rfi) identified 20 efficient r- chickens and 20 nonefficient r+ chickens. residual feed intake was defined as the difference between observed feed intake (fi) and expected fi based on metabolic bw and bw gain, and was used as a measure for feed efficiency. body weight and bw gain were similar for both groups. feed intake and rfi were significantly higher in r+ birds. it is hypothesized that nonefficient r+ birds are more flexible to divert r ... | 2004 | 15554069 |
| intermittent long-term shedding and induction of carrier birds after infection of chickens early posthatch with a low or high dose of salmonella enteritidis. | poultry are very likely to become infected with salmonella in the early posthatch period, due to environmental contamination. the purpose of this study was to evaluate the effect of infection dose on the risk of persistent infection in laying hens. in this study, young layer chicks were orally infected with a low (10(2) at 1 d posthatch) or a high dose (10(9) cfu at 1 wk posthatch) of salmonella enteritidis. the pattern and duration of fecal shedding was studied for 18 wk. all chickens shed salm ... | 2004 | 15554070 |
| [spread of salmonellosis in moscow and the ways of its prophylaxis]. | the article deals with the results of the epidemiological analysis of the spread of salmonellosis in moscow. during the last 15 years the proportion of salmonella enteritidis was about 80% and more. after salmonellosis morbidity decreased to 19.9 per 100,000 of the population (the minimum level) in 1985 its sharp rise was noted. morbidity rate increased from 31.7 in 1987 to 55.1 per 100,000 in 1988, then to 93.9 per 100,000 of the population in 1989 (the maximum level). in the subsequent years u ... | 2004 | 15554310 |
| salmonella carrier state in chicken: comparison of expression of immune response genes between susceptible and resistant animals. | asymptomatic salmonella enterica serovar enteritidis carrier state in poultry has serious consequences on food safety and public health due to the risks of food poisoning following consumption of contaminated products. an understanding the mechanisms of persistence of salmonella in the digestive tract of chicken can be achieved by a better knowledge of the defects in the control of infection in susceptible versus resistant animals. the gene expression of innate immune response factors including ... | 2004 | 15555534 |
| induction of cationic chicken liver-expressed antimicrobial peptide 2 in response to salmonella enterica infection. | cationic antimicrobial peptides constitute part of the innate immune system and provide an essential role in the defense against infection. at present there is a paucity of information regarding the antimicrobial profile of the chicken (gallus gallus). using in silico studies, an expressed sequence tag (est) clone was identified which encodes a novel cationic antimicrobial peptide, chicken liver-expressed antimicrobial peptide 2 (cleap-2). the predicted amino acid sequence composed a prepropepti ... | 2004 | 15557621 |
| epidemiological and epizootological aspects of salmonellosis. | in their case report, most of the patients with salmonellosis mentioned consumption of meals containing poultry products, primarily eggs and egg products as a source of their disease. microbiological analysis of samples showed that in more than 88 % of cases the infection agent was identified as salmonella enteritidis. this serovar is the most frequent pathogen isolated at poultry farms. in the period of the past five years, 171 outbreaks of salmonellosis were recorded in slovakia. however, with ... | 2004 | 15777071 |
| putting all your eggs in one basket: egg safety and the case for a single food-safety agency. | 2004 | 15586995 | |
| bilateral amaurosis caused by salmonella enteritidis infection. | the aim of this paper was to show the potential of salmonella enteritidis infection to eventually result in visual impairment. a case of salmonellosis in a 6-year-old boy, caused by intake of a cake made from eggs infected with salmonella enteritidis, is presented. prolonged duration of the disease was followed by complete remission of neurologic complications and persistent amaurosis with bilateral optic nerve atrophy. a severe form of salmonella enterocolitis with neurologic involvement can le ... | 2004 | 15666629 |
| colonization of reproductive organs and internal contamination of eggs after experimental infection of laying hens with salmonella heidelberg and salmonella enteritidis. | internal contamination of eggs laid by hens infected with salmonella enteritidis has been a prominent international public health issue since the mid-1980s. considerable resources have been committed to detecting and controlling s. enteritidis infections in commercial laying flocks. recently, the centers for disease control and prevention also reported a significant association between eggs or egg-containing foods and s. heidelberg infections in humans. the present study sought to determine whet ... | 2004 | 15666867 |
| molecular epidemiology of salmonella enterica serovar enteritidis strains by pulsed-field gel electrophoresis isolated in the slovak republic. | a total 44 isolates of s. enterica serovar enteritidis (s. enteritidis) belonged to three different phage types (pts) 9a, 13a, 25 were analyzed by the technique of pulsed-field gel electrophoresis (pfge). thirty and three strains were from two outbreaks (central and southern regions of the slovak republic pts 13a, 25) and 11 isolates were sporadic isolates (pt9a). these isolates showed two different patterns in pfge with xbai digestion. strains of pt13a generated pfp a and isolates of pt25 showe ... | 2004 | 15790080 |
| pheno-genotyping of salmonella enterica serotype enteritidis isolates identified in sicily during a reemergence period. | after an upward trend paralleling that occurring in most european countries, including italy, since october 2002 salmonella enterica serotype enteritidis (s. enteritidis) has again gained the first position among outbreak and sporadic human isolates of salmonella in sicily. because phage typing of s. enteritidis has many technical and epidemiological limitations and molecular methods have proved to be poorly discriminative for this organism, multiple typing, using phage typing together with puls ... | 2004 | 15992280 |
| [forty-one pediatric cases of non-typhoidal salmonellosis]. | non-typhoidal salmonella (nts) infections are a major cause of infantile death in developing countries. | 2004 | 16235596 |
| [incidence and impact of hiv infection among patients with bacterial pleurisy in lomé (togo)]. | a prospective study was made in the tokoin university hospital in lomé (togo) to determine the incidence and the impact of hiv among patients with bacterial pleurisy. two hundred cases of bacterial pleurisy were consecutively included over 17 months. the hiv diagnostic was performed using elisa (vironostika hiv uni-form ii plus o and hiv1 and 2 bispot immunocomb ii). the 200 cases of pleurisy included 152 (76%) tuberculous pleural effusion and 48 (24%) pleural empyema. staphylococcus aureus (32% ... | 2004 | 16235598 |
| the incidence rate of bacterial food poisonings in the lublin province in the years 1976-1998. | the aim of the paper was to analyse the bacterial poisonings in the lublin province in the years 1976-1998. the analysis was based on the archive materials of the regional unit for control of epidemics and hygiene promotion in lublin. to illustrate the discussed issues the exemplifying bacterial food poisonings in closed mass nutrition institutions in 1990 were examined. the studies revealed that the bacterial food poisonings were most frequently caused by salmonella enteritidis and one of the b ... | 2004 | 16146109 |
| suppression of salmonella enterica serovar enteritidis excretion by intraocular vaccination with fimbriae proteins incorporated in liposomes. | liposome-associated fimbriae antigens (sef14 and sef21) were prepared for intraocular immunization to seek protective efficacy for intestinal infection with salmonella enterica serovar enteritidis. chickens were immunized intraocularly with the antigens at 8 and 10 weeks of age. evidence of an iga and igg responses were found in the intestinal tract and in sera of these chickens. antibody-secreting lymphocytes were detected in the harderian gland of immunized chickens as determined by enzyme-lin ... | 2004 | 12962980 |
| enhancement of nisin, lysozyme, and monolaurin antimicrobial activities by ethylenediaminetetraacetic acid and lactoferrin. | a microtiter plate assay was employed to systematically assess the interaction between ethylenediaminetetraacetic acid (edta) or lactoferrin and nisin, lysozyme, or monolaurin against strains of listeria monocytogenes, escherichia coli, salmonella enteritidis, and pseudomonas fluorescens. low levels of edta acted synergistically with nisin and lysozyme against l. monocytogenes but edta and monolaurin interacted additively against this microorganism. edta synergistically enhanced the activity of ... | 2004 | 14672831 |
| growth of salmonella enteritidis in yolk from eggs laid by immunized hens. | after hyperimmunization of laying hens with salmonella enteritidis, antibodies can be found in egg yolks. this study was conducted to ascertain whether the growth of s. enteritidis would be suppressed in the presence of antibodies contained in egg yolk. specifically pathogen-free (spf)-laying hens were immunized with s. enteritidis; eggs were collected, the yolk was separated and the concentration of s. enteritidis antibodies was determined quantitatively by using the enzyme-linked immunosorbent ... | 2004 | 14672835 |
| soft-tissue abscess caused by salmonella enterica serovar enteritidis at the site of melanoma metastasis. | 2004 | 14706095 | |
| gangliosides act as co-receptors for salmonella enteritidis flic and promote flic induction of human beta-defensin-2 expression in caco-2 cells. | antimicrobial peptides such as defensins are crucial for host defense at mucosal surfaces. we reported previously that salmonella enteritidis flagellin (flic) induced human beta-defensin-2 (hbd-2) mrna expression in caco-2 cells via nf-kappab activation (ogushi, k., wada, a., niidome, t., mori, n., oishi, k., nagatake, t., takahashi, a., asakura, h., makino, s., hojo, h., nakahara, y., ohsaki, m., hatakeyama, t., aoyagi, h., kurazono, h., moss, j., and hirayama, t. (2001) j. biol. chem. 276, 305 ... | 2004 | 14707135 |
| detection of tem-52 in salmonella enterica serovar enteritidis isolated in scotland. | 2004 | 14688043 | |
| commensal anaerobic gut bacteria attenuate inflammation by regulating nuclear-cytoplasmic shuttling of ppar-gamma and rela. | the human gut microflora is important in regulating host inflammatory responses and in maintaining immune homeostasis. the cellular and molecular bases of these actions are unknown. here we describe a unique anti-inflammatory mechanism, activated by nonpathogenic bacteria, that selectively antagonizes transcription factor nf-kappab. bacteroides thetaiotaomicron targets transcriptionally active nf-kappab subunit rela, enhancing its nuclear export through a mechanism independent of nuclear export ... | 2004 | 14691478 |
| adaptive resistance to biocides in salmonella enterica and escherichia coli o157 and cross-resistance to antimicrobial agents. | the mechanisms by which bacteria resist killing by antibiotics and biocides are still poorly defined, although repeated exposure to sublethal concentrations of antibacterial agents undoubtedly contributes to their development. this study aimed both to investigate the potential of salmonella enterica and escherichia coli o157 for adaptive resistance to commonly used biocides and to determine any cross-resistance to antibiotics. strains were repeatedly passaged in media containing increasing conce ... | 2004 | 14715734 |
| prevalence and antimicrobial susceptibility of serogroup d nontyphoidal salmonella in a university hospital in taiwan. | the incidence of serogroup d salmonella has been increasing in taiwan. most of these isolates belonged to salmonella enterica serovar enteritidis and showed a relatively higher rate of resistance to sulfamethoxazole-trimethoprim than to other antimicrobial agents. the results of molecular experiments indicated that genes responsible for the resistance were located on plasmids. the resistance may occur via horizontal gene transfer. furthermore, the first identification of ciprofloxacin and ceftri ... | 2004 | 14715794 |
| antimicrobial susceptibility of salmonella isolated from cattle, swine and poultry (2001-2002): report from the japanese veterinary antimicrobial resistance monitoring program. | the japanese veterinary antimicrobial resistance monitoring (jvarm) program was established in 1999 to examine the susceptibility of bacteria from food-producing animals to antimicrobial agents. this study tested the susceptibility of salmonella isolates collected during 2001-2002 to 20 antimicrobials. materials and methods: mics of antimicrobial agents were determined using the nccls agar dilution method, and interpreted according to breakpoints obtained from the bimodal mic distributions. | 2004 | 14729740 |
| intestinal colonisation-inhibition and virulence of salmonella phop, rpos and ompc deletion mutants in chickens. | administration of live salmonella strains to day-old chicks provides profound protection against superinfection with a related strain within a matter of hours by a colonisation-inhibition mechanism, which is primarily a bacterial physiological process. although currently available, commercial, live attenuated salmonella vaccines induce protection by adaptive immunity, none of them is able to induce protection against salmonella organisms by colonisation-inhibition and, therefore, they are unable ... | 2004 | 14738780 |
| septic arthritis of the ankle due to salmonella enteritidis: a case report. | salmonella septic arthritis in healthy individuals is a rare phenomenon in the united states. this case report chronicles the clinical course of a 41-year-old male farmworker who presented with a 3-week history of fever, chills, night sweats with pain, and swelling and redness of his left ankle. he had an open fracture of the ankle 2 years earlier that healed and was asymptomatic despite prior radiographic evidence of avascular necrosis of the talar dome. one month before presentation, he had an ... | 2004 | 14746429 |
| microencapsulated short-chain fatty acids in feed modify colonization and invasion early after infection with salmonella enteritidis in young chickens. | short-chain fatty acids (scfa) are widely used as feed additives in poultry for the control of pathogenic bacteria, such as salmonella enteritidis. recently, a new range of products was developed in which scfa are encapsulated in mineral carriers, resulting in a slow release during the transport of these carriers through the intestinal tract. to test the efficacy of this type of products against early colonization after salmonella infection in poultry, a challenge experiment with s. enteritidis ... | 2004 | 14761086 |
| determination of cooling rates and carbon dioxide uptake in commercially processed shell eggs using cryogenic carbon dioxide gas. | the ability to rapidly cool shell eggs to 7 degrees c is important in the prevention of salmonella enteritidis (se) growth. in addition, quality may also be maintained longer from rapid cooling of shell eggs. a commercial cryogenic co2 egg cooling unit was designed and installed in a commercial egg processing facility. this unit was installed on a packer head to rapidly cool eggs individually prior to packaging. the objective of this study was to determine cooling rates and co2 gas changes that ... | 2004 | 14761089 |
| microbial contamination in inoculated shell eggs: ii. effects of layer strain and egg storage. | three ottawa control strains and a current commercial laying stock were reared and housed in the same environment. eggs were collected at 5 different hen ages throughout the 2 production cycles of the flock. the eggs were inoculated with salmonella enteritidis (se), pseudomonas fluorescens (pf), a combination of the 2, or sterile buffered peptone water and stored up to 5 wk. after storage at room temperature, contamination levels were determined for the exterior surface, air cell, egg contents, ... | 2004 | 14761090 |
| an insidious nosocomial outbreak due to salmonella enteritidis. | to investigate an increase in the number of salmonella enteritidis isolates detected in a large hospital to ascertain whether it was due to a nosocomial source, to identify the mechanisms of transmission, and to institute effective control measures to prevent future episodes. | 2004 | 14763444 |
| an assessment of the microbiological risks involved with egg washing under commercial conditions. | the potential benefits of washing eggs is offset by a historical perception in the european union that wetted eggs are prone to spoilage and water loss. this study describes the effects of spray jet washing under various processing conditions to shell surface counts of salmonella and the presence of bacteria in egg contents. experiments used eggs that were contaminated with salmonella enteritidis pt4 or salmonella typhimurium dt104 before cuticle hardening. washing of contaminated eggs under opt ... | 2004 | 14717344 |
| evidence of salmonella internalization into fresh mangos during simulated postharvest insect disinfestation procedures. | a recent u.s. salmonellosis outbreak was epidemiologically associated with consumption of imported fresh mangos. studies were conducted to simulate the commercial heat disinfestation method used to eliminate tephritid fly larvae from mangos, as well as subsequent product cooling procedures, to assess whether this process promotes internalization of salmonella into mangos. the experimental parameters were chosen to mimic the disinfestation method used by the south american producer/packer implica ... | 2004 | 14717371 |
| effect of prestorage treatmlents and storage conditions on the survival of salmonella enteritidis pt4 and listeria monocytogenes on fresh marine and freshwater aquaaculture fish. | the effect of prestorage treatments, such as immersion in a sorbate solution (5%, wt/vol), heating (60 degrees c, 1 min), and a combination of the two treatments, and the subsequent storage in air or under modified atmosphere packaging (map; 40% co2, 30% o2, and 30% n2) at chill temperatures (0 +/- 1 degrees c), on listeria monocytogenes and salmonella enteritidis pt4 was studied. the prestorage treatments affected the pathogenic bacteria, and in all cases, there was a decrease in their populati ... | 2004 | 14717374 |
| testing two lactobacillus plantarum and lactobacillus acidophilus strains for their suitability as a lipoid probiotic. | two strains of lactobacilli (lactobacillus acidophilus t-135 and lactobacillus plantarum 4/97) were selected in order to study their inhibitory properties against frequent udder pathogens (escherichia coli, staphylococcus aureus, streptococcus agalactiae, streptococcus uberis, salmonella enteritidis and bacillus pumilus), their production of organic acids as well as their ability to survive on the teat skin, the teat duct mucosa and in a lipoid emulsion. both strains inhibited the tested pathoge ... | 2004 | 15046462 |
| tubular glands of the isthmus are the predominant colonization site of salmonella enteritidis in the upper oviduct of laying hens. | salmonella enterica serovar enteritidis is the serovar most frequently isolated from chicken eggs. colonization of the upper oviduct of hens is believed to play an important role in egg contamination. the interaction of s. enteritidis with gland epithelial cells of the isthmus and the magnum was, therefore, studied in vitro and in vivo. in the first experiment, s. enteritidis bacteria were added to confluent monolayers of primary cultures of chicken tubular epithelial cells of the isthmus (ictec ... | 2004 | 15049486 |
| salmonella enterica subsp. enterica serovar enteritidis harbours cole1, cole2, and rolling-circle-like replicating plasmids. | using dna hybridization, at least three distinct groups of low molecular mass plasmids were identified in salmonella enterica subsp. enterica serovar enteritidis. after sequencing representative plasmids from each group, we concluded that they belonged to cole1, cole2, and rolling-circle-like replicating plasmids. plasmid pk (4245 bp) is a representative of widely distributed cole1 plasmids. plasmid pp (4301 bp) is homologous to cole2 plasmids and was present predominantly in single-stranded dna ... | 2004 | 15052312 |
| [mechanisms of resistance to beta lactams and nalidixic acid in clinical isolates of salmonella enteritidis serotype hadar and bsilla]. | 2004 | 15056446 | |
| antibiotic resistance in salmonella enterica serotypes typhimurium, enteritidis and infantis from human infections, foodstuffs and farm animals in italy. | the antimicrobial susceptibility of isolates of salmonella enterica serotypes typhimurium, enteritidis, and infantis isolated from humans, foodstuffs and farm animals in italy between 1999 and 2001 was examined. all the isolates were susceptible to cefotaxime and ciprofloxacin, but high rates of resistance were observed for several other drugs, especially for s. typhimurium. the rates of resistance and multiresistance were generally higher among animal and food isolates than in human strains; co ... | 2004 | 15061499 |
| immunogenic properties of the salmonella atypical fimbriae in balb/c mice. | components of the salmonella atypical fimbriae (saf) were investigated for potential inclusion in a salmonella vaccine. recombinant histidine-tagged safb chaperone complexed with safd adhesin was expressed in escherichia coli and purified. starch microparticles were used, as an adjuvant and recombinant cholera toxin b subunit (rctb) was included as a mucosal antigen-uptake enhancer. balb/c mice were immunized orally or subcutaneously with safb/d- and rctb-conjugated microparticles and nasally or ... | 2004 | 15063568 |
| development of a multiplex pcr technique for detection and epidemiological typing of salmonella in human clinical samples. | we have developed a multiplex pcr assay for salmonella detection and epidemiological typing. six sets of primers were designed to detect the major salmonella serotypes and phage types in spain. an internal amplification control was designed in order to detect pcr inhibition. the different amplification profiles obtained allowed us to detect salmonella bacteria and to distinguish the clinically prevalent salmonella enterica serotypes enteritidis, typhimurium and subspecies i serotype 4,5,12:i:-. ... | 2004 | 15071035 |
| flagella and curli fimbriae are important for the growth of salmonella enterica serovars in hen eggs. | salmonella enterica serovar enteritidis is unable to multiply in the albumen of fresh eggs and must gain access to the yolk contents in order to multiply to a high level (>10(6) c.f.u. per ml egg contents). as human salmonella infections resulting from the consumption of infected eggs more frequently involve serovar enteritidis phage type (pt) 4 than other serovars or pts, a number of isolates of various s. enterica serovars were examined for their ability to multiply to a high level in eggs ove ... | 2004 | 15073315 |
| detection of airborne salmonella enteritidis in the environment of experimentally infected laying hens by an electrostatic sampling device. | bacteriologic culturing of environmental samples taken from sources such as manure pits and egg belts has been the principal screening tool in programs for identifying commercial laying flocks that have been exposed to salmonella enteritidis and are thus at risk to produce contaminated eggs. because airborne dust and aerosols can carry bacteria, air sampling offers a potentially efficient and inexpensive alternative for detecting s. enteritidis in poultry house environments. in the present study ... | 2004 | 15077808 |
| effects of prior coinfection with different salmonella serovars on the progression of a salmonella enterica serovar enteritidis infection in hens undergoing induced molt. | four trials were conducted to evaluate whether prior infection with salmonella enterica serovar typhimurium (s. typhimurium) or salmonella enterica serovar muenchen (s. muenchen) would modify the severity or the transmission of salmonella enterica serovar enteritidis (s. enteritidis) challenge in hens undergoing molt via feed withdrawal. hens were separated into two groups where one group received a prior s. typhimurium or s. muenchen infection, whereas the other group remained untreated until s ... | 2004 | 15077810 |
| the effect of killed salmonella enteritidis vaccine prior to induced molting on the shedding of s. enteritidis in laying hens. | effects of administering killed salmonella enterica serovar enteritidis (se) vaccines to laying hens prior to induced molting on egg production and on shedding of se were investigated. forty hens were vaccinated with one of two se vaccines available commercially in the united states and japan. twenty-five days after vaccination, feed was withdrawn for 2 wk from 20 vaccinated plus 10 unvaccinated hens to induce molt. four days after molt induction, all hens were challenged with a dose of 2.4 x 10 ... | 2004 | 15077813 |
| in vitro activity of nitrofuran derivatives on growth and morphology of salmonella enterica serotype enteritidis. | to evaluate the effect of nitrofuran derivatives furazolidone (fz) and nitrofurantoin (nf) on salmonella enterica serovar enteritidis pt4 in vitro, with regard to cell growth, morphology and ultrastructure. | 2004 | 15078517 |
| salmonella enteritidis infections, united states, 1985-1999. | salmonella enterica serotype enteritidis emerged as an important illness during the 1980s. investigations showed that consumption of undercooked eggs was the major risk factor for disease, and a variety of prevention and control efforts were initiated during the 1990s. we describe sporadic infections and outbreaks of s. enteritidis in the united states from 1985 through 1999 and discuss prevention and control efforts. after reaching a high of 3.9 per 100,000 population in 1995, s. enteritidis in ... | 2004 | 15078589 |
| reduction of escherichia coli o157:h7 and salmonella enterica serovar enteritidis in chicken manure by larvae of the black soldier fly. | green fluorescent protein-labeled escherichia coli o157:h7 and salmonella enterica serovar enteritidis were inoculated at 10(7) cfu/g into cow, hog, or chicken manure. ten- or 11-day-old soldier fly larvae (hermetia illucens l.) (7 to 10 g) were added to the manure and held at 23, 27, or 32 degrees c for 3 to 6 days. soldier fly larvae accelerated inactivation of e. coli o157:h7 in chicken manure but had no effect in cow manure and enhanced survival in hog manure. the initial ph values of the ho ... | 2004 | 15083719 |
| efficacy of egg cleaning compounds on eggshells contaminated with salmonella enterica serovar enteritidis. | salmonella enteritidis infections of egg contents can be related to external contamination of the shell. in this study, the efficacy of three commercial cleaning and/or sanitizing compounds (sodium carbonate, sodium hypochlorite, and potassium hydroxide) was evaluated for bactericidal activity at ph values of 10, 11, and 12 against various concentrations (10(2), 10(4), or 10(6) cfu/ml) of salmonella enteritidis inoculated onto the eggshell surface. efficacy of these chemical agents was also asse ... | 2004 | 15083722 |
| dramatic decrease in the incidence of salmonella serotype enteritidis infections in 5 foodnet sites: 1996-1999. | salmonella serotype enteritidis (se) emerged as the most common salmonella serotype among infected persons in the united states during the 1980s and 1990s, with infections reaching a peak in 1995. during the past decade, farm-to-table control measures have been instituted in the united states, particularly in regions with the highest incidence of se infection. we report trends in the incidence of se in the 5 original surveillance areas of the foodborne diseases active surveillance network during ... | 2004 | 15095182 |
| chicken consumption is a newly identified risk factor for sporadic salmonella enterica serotype enteritidis infections in the united states: a case-control study in foodnet sites. | the sources of sporadic salmonella enterica serotype enteritidis (se) infections in the united states are unclear. to determine risk factors for sporadic se infection, we conducted a population-based case-control study in 5 foodborne disease active surveillance network surveillance areas. during the 12-month study, 396 cases of se infection were ascertained. among the 182 case patients and 345 controls, se infection was univariately associated with international travel (matched odds ratio [mor], ... | 2004 | 15095196 |
| nontyphoid salmonellosis in taiwan children: clinical manifestations, outcome and antibiotic resistance. | the purposes of this study were to investigate the epidemiologic, clinical, and microbiologic features of patients with nontyphoid salmonellosis and to elucidate the impact of resistance on the outcome of nontyphoid salmonellosis in taiwan. the authors also sought to develop a severity score to derive an objective guideline for antibiotic use in nontyphoid salmonellosis in the era of increasing antibiotic resistance. | 2004 | 15097441 |
| effect of orally administered egg yolk antibodies on salmonella enteritidis contamination of hen's eggs. | 2004 | 15107039 | |
| analysis of chicken tlr4, cd28, mif, md-2, and litaf genes in a salmonella enteritidis resource population. | salmonella enteritidis is a foodborne pathogen that negatively affects both animal and human health. genetic variations in response to pathogenic se colonization or to se vaccination were measured in a chicken resource population. outbred broiler sires and 3 diverse, highly inbred dam lines produced 508 f1 progeny that were evaluated for either bacterial colonization after pathogenic se inoculation or circulating antibody level after se vaccination. five candidate genes were selected for study, ... | 2004 | 15109052 |
| differences in the carriage and the ability to utilize the serotype associated virulence plasmid in strains of salmonella enterica serotype typhimurium investigated by use of a self-transferable virulence plasmid, pog669. | most strains of salmonella enterica subspecies enterica serotype typhimurium (s. typhimurium) naturally harbour a virulence plasmid which carries the salmonella plasmid virulence (spv) genes. however, isolates belonging to certain phage types are generally found without the plasmid. we have utilized a self-transferable virulence plasmid, pog669 to investigate the effect of introduction of spv genes into strains of such phage types. the use of the co-integrate plasmid, pog669, was validated on a ... | 2004 | 15120160 |
| acute renal tubular dysfunction in association with salmonella enteritidis. | a thirteen-year-old boy presented with acute renal tubular dysfunction after an infection with salmonella enteritidis. the child recovered following treatment with ciprofloxacin for a week. | 2004 | 15123871 |
| subpopulation characteristics of egg-contaminating salmonella enterica serovar enteritidis as defined by the lipopolysaccharide o chain. | characterization of salmonella enterica serovar enteritidis was refined by incorporating new data from isolates obtained from avian sources, from the spleens of naturally infected mice, and from the united kingdom into an existing lipopolysaccharide (lps) o-chain compositional database. from least to greatest, the probability of avian isolates producing high-molecular-mass lps o chain ranked as follows: pooled kidney, liver, and spleen; intestine; cecum; ovary and oviduct; albumen; yolk; and who ... | 2004 | 15128529 |
| effects of a lactoperoxidase-thiocyanate-hydrogen peroxide system on salmonella enteritidis in animal or vegetable foods. | lactoperoxidase (lpo) from skim milk was purified by ion-exchange chromatography. the purified protein was used to catalyze the oxidation of thiocyanate by h2o2 in an antibacterial system (lpo system). the lpo system was used to inactivate or inhibit salmonella enteritidis in tomato juice, carrot juice, milk, liquid whole egg, and chicken skin extract under various conditions. the system was found to be more effective against the organism in vegetable juices than in animal products, at low ph th ... | 2004 | 15135956 |
| effect of food protein supplements on salmonella enteritidis infection and prevention in laying hens. | reduction of intestinal colonization of salmonella enteritidis (se) during the grow-out period is crucial to provide safer eggs, minimize economic losses, and reduce the spread of human salmonellosis. in the search for novel elimination and prevention methods based on feed supplementation, the effects of feed supplemented with nonimmunized egg yolk powder (did not contain anti-s. enteritidis antibodies), immunized egg yolk powder (with anti-s. enteritidis antibodies), egg yolk proteins, egg whit ... | 2004 | 15141832 |
| comparison of methods for differentiation of salmonella enterica serovar enteritidis phage type 4 isolates. | to compare molecular typing methods for the differentiation of salmonella enterica serovar enteritidis phage type (pt) 4 isolates that allowed for the determination of their genetic relatedness. | 2004 | 15141870 |
| yersinia enterocolitica leads to transient induction of tnf-alpha and activates nf-kappab in synovial fibroblasts. | the importance of the presence of bacterial antigen or even living bacteria for the pathogenesis of reactive arthritis has been discussed increasingly ever since bacterial antigen was found in inflamed joints. bacteria may persist in the body and drive the local immune response, maintaining arthritis. cytokines, in particular tumor necrosis factor-alpha (tnf-alpha) are essential for bacterial elimination. in reactive arthritis, the course of the disease is influenced by several cytokines, includ ... | 2004 | 15144120 |
| multiple genetic typing of salmonella enteritidis phage-types 4, 6, 7, 8 and 13a isolates from animals and humans in the uk. | salmonella enterica serovar enteritidis is a common cause of salmonellosis in people in the uk. this study aimed to assess the degree of genetic diversity among animal and human isolates from uk, wales and northern ireland. a total of 250 isolates from humans (n = 59) and animals or their environment (n = 191), belonging to the most common phage-types, were fingerprinted by a combination of pfge, ps ribotyping and plasmid profiling. the different techniques identified different degrees of polymo ... | 2004 | 15145497 |
| frequency and polymorphism of sope in isolates of salmonella enterica belonging to the ten most prevalent serotypes in england and wales. | translocated effector protein, sope, leads to actin cytoskeletal rearrangements and membrane ruffling. only a subset of salmonella enterica serotypes possess sope, with the majority of sope-carrying s. enterica serotype typhimurium associated with epidemics. using real-time pcr and sequencing, sope was investigated in the ten most prevalent serotypes of s. enterica in england and wales in 2001. sope was identified in s. typhimurium definitive phage types 29, 44, 49, 204b and 204c, all of which e ... | 2004 | 15150335 |
| rapid, specific detection of salmonella enteritidis in pooled eggs by real-time pcr. | an assay was developed for the specific detection of salmonella enteritidis in eggs with the use of an application of the fluorogenic 5' nuclease assay (taqman). in this assay, a segment of the gene sefa specific to salmonella group d strains such as salmonella enteritidis was used. the amplification of the target gene products was monitored in real-time by incorporating a fluorescent dye-labeled gene-specific probe in the pcr reaction. this method correctly detected and distinguished salmonella ... | 2004 | 15151219 |
| geographically dependent distribution of gyra gene mutations at codons 83 and 87 in salmonella hadar, and a novel codon 81 gly to his mutation in salmonella enteritidis. | in all, 90 nalidixic acid-resistant clinical strains of salmonella hadar and salmonella enteritidis isolated in norway but of predominantly foreign origin were subjected to sequencing of the gyra, gyrb, parc and pare genes. all the isolates contained at least one mutation in gyra codon 83 or codon 87. a highly significant correlation between mutations in gyra codon 83 and strains originating from southeast asia was found in s. hadar but not in s. enteritidis. a novel gyra codon 81 gly to his mut ... | 2004 | 15153158 |
| long-term alterations in neuroimmune responses after neonatal exposure to lipopolysaccharide. | fever is an integral part of the host's defense to infection that is orchestrated by the brain. a reduced febrile response is associated with reduced survival. consequently, we have asked if early life immune exposure will alter febrile and neurochemical responses to immune stress in adulthood. fourteen-day-old neonatal male rats were given escherichia coli lipopolysaccharide (lps) that caused either fever or hypothermia depending on ambient temperature. control rats were given pyrogen-free sali ... | 2004 | 15163684 |
| mesenteric cyst infected with non-typhoidal salmonella infection. | although extra-intestinal non-typhoidal salmonella infections are common in developing countries, infection of the mesenteric cyst with salmonella enteritidis is an extremely rare occurrence. review of the english literature has revealed one report up to this date. the case of a 4-year-old boy with a mesenteric cyst infected with salmonella enteritidis is presented. | 2004 | 15168049 |
| method for assessment of functional affinity of antibodies for live bacteria. | a rapid and convenient method for assessment of functional affinity of antibodies against live bacteria is described. when a combination of immunomagnetic separation (ims) with bioluminescent or fluorescent genetic labelling of the cells was employed, the method showed good correlation with plate count. however, the use of reporter bacteria allowed results to be obtained within 1 h compared with days using conventional methods. due to its lower detection limit, the bioluminescent assay performed ... | 2004 | 15177903 |
| cell-mediated immune responses to a killed salmonella enteritidis vaccine: lymphocyte proliferation, t-cell changes and interleukin-6 (il-6), il-1, il-2, and ifn-gamma production. | two experimental approaches were used to investigate the immunological responses of chickens to a commercial killed salmonella enteritidis (se) vaccine. in the first, the effects of host age on antigen-specific proliferative responses and cytokine production were examined. compared with non-vaccinated controls, 4-wk-old vaccinated chickens showed higher proliferation to se lps and flagella. the lymphoproliferation responses to these antigens of 8-mo-old vaccinated chickens were not different com ... | 2004 | 15178000 |
| screening of selected indigenous plants of lebanon for antimicrobial activity. | the objective of this study is to test in vitro the antimicrobial efficacy of 39 water and 39 methanol extracts derived from different parts of 27 indigenous wild plant species that have been commonly used in lebanese folk medicine. the antimicrobial efficacy was determined using the single disk diffusion method, with 10 and 20 microl load extract volume per disc. nine test microorganisms were used namely, escherichia coli, proteus sp., pseudomonas aeruginosa, shigella dysenteria, salmonella ent ... | 2004 | 15182897 |
| effects of furazolidone pretreatment of salmonella enteritidis pt4 at sub- and suprainhibitory concentrations on phagocytosis and intracellular survival in chicken macrophages. | the antimicrobial effect of the nitrofuran derivative furazolidone at sub- and suprainhibitory concentrations on salmonella enteritidis pt4 and the influence with regard to interaction with avian macrophages was investigated in this study. phagocytosis of furazolidone-sensitive (fzs) s. enteritidis with chicken macrophages in the presence of furazolidone at concentrations of 1/8, 1/4, 1/2 and 8x mic resulted in an increase in the rate of phagocytic killing of approximately 3-, 6-, 6.5- and 9-fol ... | 2004 | 15182998 |
| medium-chain fatty acids decrease colonization and invasion through hila suppression shortly after infection of chickens with salmonella enterica serovar enteritidis. | the most common source of salmonella infections in humans is food of poultry origin. salmonella enterica serovar enteritidis has a particular affinity for the contamination of the egg supply. in this study, the medium-chain fatty acids (mcfa), caproic, caprylic, and capric acid, were evaluated for the control of salmonella serovar enteritidis in chickens. all mcfa were growth inhibiting at low concentrations in vitro, with caproic acid being the most potent. contact of salmonella serovar enterit ... | 2004 | 15184160 |