Publications
| Title | Abstract | Year Filter | PMID(sorted ascending) Filter |
|---|
| salmonella-associated conjunctivitis in a cat. | salmonella typhimurium-associated conjunctivitis in an adult female cat was characterized by epiphora and blepharospasm. the cat also harbored intestinal s typhimurium, as did one other cat in the same shipment of 7 cats obtained from a commercial cat dealer. the 3 isolates were resistant to ampicillin, cephaloridine, cephalothin, streptomycin, triple sulfonamides, and tetracycline. all 3 isolates were capable of transferring a part of the antibiotic resistance pattern to an escherichia coli k-1 ... | 1977 | 336590 |
| sugar phosphate: sugar transphosphorylation and exchange group translocation catalyzed by the enzyme 11 complexes of the bacterial phosphoenolpyruvate: sugar phosphotransferase system. | 1977 | 336623 | |
| survival of salmonella eastbourne and salmonella typhimurium in milk chocolate prepared with artificially contaminated milk powder. | milk chocolate mass containing salmonellas was prepared by mixing artificially contaminated milk powder with the other ingredients at a temperature of about 40 degrees c. from this mass bars were made. two series were prepared, with s. eastbourne and s. typhimurium respectively. the number of surviving salmonellas was counted after various periods of storage, up to 19 months. s. eastbourne was reduced in numbers during 19 months from an initial count of ca. 3 x 10(4) to ca. 3 x 10(2) per 100 g o ... | 1977 | 336788 |
| effects of antibiotics on the survival of salmonella in the american cockroach. | the faecal survival of salmonella typhimurium orally administered to restrained american cockroaches maintained on an antibiotic diet was investigated. significant reductions in median numbers of total aerobic faecal microorganisms were noted in insects fed antibiotics daily, and when salmonella was introduced to this modified micro-environment, it persisted for 44 days in all specimens. multiplication of the pathogen was also observed in these insects, with numbers often exceeding 10(3) times t ... | 1977 | 336789 |
| microbiological evaluation of south australian rock lobster meat. | samples of frozen precooked rock lobster meat from five south australian fish-processing plants situated in the west coast and south-east regions were tested over a period of six months during the 1974/5 lobster fishing season. the most probable number (mpn) of e. coli and coliforms, staphylococcus aureus and salmonella, as well as total plate count (tpc) were determined in 480 samples. monthly geometric mean tpc ranged from 1600/g to 25,000/g. the highest geometric mean of the mpn of coliforms ... | 1977 | 336790 |
| clonal distribution of resistance plasmid-carrying salmonella typhimurium, mainly in the middle east. | strains of salmonella typhimurium of predominantly middle eastern origin, but distributed from england to india, were found to carry at least three types of resistance plasmid. the most important was initially identified as an f(i) plasmid by compatibility tests, but differs from the f factor on the one hand and the f(i) factors r162 and colv on the other. the three groups of f(i) plasmids can be distinguished by their compatibility reactions with the mp10 plasmid of s. typhimurium (smith, humph ... | 1977 | 336792 |
| antimicrobial resistance and incidence of r factor among salmonella isolated from patients with enteric fever and other clinical conditions in madras, india (1975-1976) | the incidence of transmissible drug resistance among salmonella isolated from patients with enteric fever and other clinical conditions is reported. all of the salmonella isolated were studied for antimicrobial resistance. of the 336 strains, five were multiply resistant to drugs including chloramphenicol, and four of these strains transmitted resistance to escherichia coli f-lac+. multiply drug resistant e. coli were isolated from 12 patients receiving chloramphenicol, and in seven cases the e. ... | 1977 | 336802 |
| a salmonella typhimurium endonuclease that converts native dna to fragments of about 8 x 10(5) daltons. | crude extracts of salmonella typhimurium were found to contain an endonuclease that degraded double-stranded linear dna from bacteria and phages to fragments with a molecular weight of about 8 x 10(5). the nuclease did not have an absolute requirement for mg2+. one discrete intermediate product had a molecular weight of 6-6 x 10(6). extracts from two different mutants were tested: one completely lacked the endonuclease activity (strain db5575), and the other showed an absolute requirement for mg ... | 1977 | 336842 |
| the utilization of pentoses and pentitols by different biotypes of salmonella typhimurium. | 1977 | 336843 | |
| characterization of pili determined by drug resistance plasmids r711b and r778b. | the bacterial drug resistance plasmids r711b and r778b, at present classified in the x incompatibility group, determine pili (designated 711) that resemble f pili morphologically. like f pili, 711 pili adsorb f-specific filamentous bacteriophages to their tips, though more often in pairs, than singly. however, f-specific rna-containing bacteriophages are not adsorbed to their sides, and strains carrying the plasmids are resistant to these phages. pili determined by the only incfv plasmid folac a ... | 1977 | 336847 |
| [effects of salmonella beta-lactamase on 2 different cephalosporin derivatives]. | 1977 | 337059 | |
| [postoperative focal salmonella infections of hydatid cysts]. | s. typhi and s. typhimurium were isolated from postoperative cavities of hydatid cysts of two patients. both focal salmonella infections were cured by using appropriate antibiotics. | 1977 | 337060 |
| salmonellas in milk. | 1977 | 337065 | |
| genetic studies of hybrids between coliphage lambda and salmonella phage p22: genetic analysis of the p22-lambda hybrid class. | p22-lambda hybrids which retain the protein coat of p22 have been isolated and characterized into two types. type 1 hybrids which have the c through o-p genes of lambda are unable to grow lytically on salmonella typhimurium. on the other hand, type 2 hybrids which contain only the c region of lambda, plated on s. typhimurium. both hybrid types retained the generalized transducing and antigenic conversion capabilities of p22. | 1977 | 337122 |
| multiple effects of an rna polymerase beta' mutation on in vitro transcription. | s. tyrphimurium strain by324 is temperature sensitive due to a mutation (rpo c32) in the gene for the rna polymerase beta' subunit. transcription of t7 dna by rna polymerase purified from this strain is temperature sensitive in vitro. the enzyme is slightly defective in template binding and rna chain initiation, but the major defect is in rna chain elongation. the rate of rna chain elongation is reduced 4-5 fold relative to wild-type. rna chain termination does not appear to be affected by the b ... | 1977 | 337127 |
| identification of the sid outer membrane receptor protein in salmonella typhimurium sl1027. | a protein of molecular weight 78,000 daltons, missing in albomycin and phage es18 resistant mutants, has been identified in the outer membrane of salmonella typhimurium sl1027. mutants with a tonb like resistance and over production of outer membrane proteins due to iron shortage were also isolated. the mutation which leads to the protein deficiency maps in the sid gene region, the mutation related to overproduction of proteins maps near trp. although the s. typhimurium and the e. coli protein m ... | 1977 | 337132 |
| transcription termination at the trp operon attenuators of escherichia coli and salmonella typhimurium: rna secondary structure and regulation of termination. | transcription termination at the attenuators of the trp operons of escherichia coli and salmonella typhimurium was studied in vitro using dna restriction fragments as templates. readthrough transcription beyond the terminators occurred with 5 and 30% efficiency, respectively, in e. coli and s. typhimurium. this difference is correlated with the stability of proposed secondary structures of the respective trp leader transcripts. secondary structure analyses of the two leader transcripts revealed ... | 1977 | 337297 |
| [iron overload: effect on specific and nonspecific immunity]. | acute overload with an iron salt in mice enhanced the virulence of a relatively avirulent type of salmonella typhimurium in a dose-dependent fashion. iron administration also partly abolished specific immunity. ferritin iron did not display the virulence-enhancing effect. | 1977 | 337471 |
| saccharin and other sweeteners: mutagenic properties. | saccharin preparations commonly distributed as artificial sweeteners exhibited mutagenic activity in bacterial tests. when administered orally to mice, mutagenic activity was demonstrable in the urines of these animals as well as in a host-mediated assay. highly purified saccharin was not mutagenic in the direct assay, but the urines of mice to which this material had been administered exhibited mutagenic effects on one tester strain (salmonella typhimurium ta100). two other sweeteners, neohespe ... | 1977 | 337489 |
| [lysogeny in escherichia coli isolated from birds and the spectrum of the lytic action of isolated phage]. | studies was the lysogenicity in a total of 70 strains of escherichia coli isolated from birds. as many as 19 lysogeneic strains were isolated, yielding 19 phages that had the signature of lysogenic strains. two serologic groups of phages were established by means of the neutralization reaction. it was found that phages 30 and 229, representing the two serologic groups of bacteriophages could lyse up to 44 per cent of the e. coli strains isolated from birds, 7 per cent of those isolated from calv ... | 1977 | 337645 |
| [experimental transmission of antibiotic resistance in chicks]. | multi-drug resistance of salmonella heidelberg was transmitted to normal intestinal flora (e. coli organisms were resistant to ampicillin, streptomycin, tetracycline, erythromycin, and oleandomycin. the donor strains of salmonella heidelberg used in the experiment was a carrier of the following nine markers of resistance: ampicillin, streptomycin, chloramphenicol, kanamycin, neomycin, novobiocin, tetracycline, erythromycin, and oleandomycin. the donor strains of salmonella heidelberg used in the ... | 1977 | 337646 |
| rapid identification and quantitation of small numbers of microorganisms by a chemiluminescent immunoreaction. | a method (patent pending) for rapidly identifying and quantitating small numbers of microorganisms was developed based on the specific immunoreaction of microorganisms with homologous antibodies linked by conjugation to peroxidase. the high sensitivity of the method is due to the use of a chemiluminescent reaction for the determination of the enzyme. the reaction was performed on alcar supports with low nonspecific adsorption. the very low noise achieved permitted the detection of as few as 30 t ... | 1977 | 337894 |
| properties of the cell envelope and a cell-envelope protein of pseudomonas facilis. | the molecular weight of the protein moiety of a phospholipoprotein complex isolated from pseudomonas facilis has been examined with a variety of sodium dodecylsulfate-polyacrylamide gel electrophoretic systems. a molecular weight of 35 000 was determined for the protein in all analyses. a 35 000-dalton protein was present in the edta extract of p. facilis and in the cytoplasmic and outer membrane fractions, but not in the lipopolysaccharide and peptidoglycan. prior inoculation of mice with the p ... | 1977 | 337920 |
| the role of easily released substances (ers) from bacteria in physiologic solution in natural immunity. vi. induction of opsonins for different genera of bacteria by ers from staph. aureus oxford. | ers obtained from staph. aureus by mild extraction with physiologic saline solution possess activity of inducing nonspecific opsonins which react with homologous bacteria and with related gram-negative bacteria. ers from staph. aureus weakly stimulated precipitins and antibodies active in passive hemagglutination and induced a marked rise in agglutinin titers especially for the homologous strain and gram-negative s. typhimurium bacilli. n-acetyl-d-glucosamine absorbed the opsonizing factor for v ... | 1977 | 337934 |
| selection of an in vitro carcinogenicity test for derivatives of the carcinogen hexamethylphosphoramide. | the demonstration that hexamethylphosphoramide (hmpa) possesses potent carcinogenic properties has raised doubts about the safety of exposure to other phosphoric amides. in order to define a suitable short-term test with which to evaluate such analogues, the response of the salmonella typhimurium mutation assay of ames and cell transformation assay of styles to hmpa and 3 selected analogues has been studied. these analogues were the related leukaemogen phosphoramide, the putative non-carcinogen, ... | 1977 | 337998 |
| the mutagenicity of mcpa and its soil metabolites, chlorinated phenols, catechols and some widely used slimicides in finland. | 1977 | 338061 | |
| the mutagenicity and dna-damaging activity of cyclic aliphatic sulfuric acid esters. | 1977 | 338170 | |
| controlled field trial of a high-dose oral killed typhoid vaccine in india. | a controlled field trial of a modified vaccine containing salmonella typhi, ty 2 strain, in a dose of 400 x 10(9) killed organisms per capsule, was carried out in schoolchildren aged 6-17 years. the children were followed up for 6-8 months. there were 66 cases of typhoid fever in the vaccine group (7312 children) and 54 in the control group (7292 children who had received a placebo). this difference is not statistically significant. the results confirm that, as found in earlier trials, oral typh ... | 1977 | 338191 |
| a mutant of the antibiotic resistance factor r124 with altered copy number. | a mutation conferring increased antibiotic resistance on salmonella typhimurium strain 11g carrying r124 was plasmid determined; strains harbouring the mutant plasmid contained more dna as ccc plasmid than those harbouring r124. the increased copy number was manifested at all growth rates tested. | 1977 | 338336 |
| demonstration of enterobacterial common antigen by bacterial agglutination. | potent antisera against the enterobacterial common antigen (eca) agglutinate r bacteria of the enterobacteriaceae family that possess unimpaired r-core structures of the escherichia coli r1 or e. coli r4 core type. in these strains, known to be eca immunogenic, eca is most probably linked to the lipopolysaccharide r core. r mutants of other core types (e.g., salmonella ra, e. coli r2 or r3) or r mutants with incomplete core structures of the e. coli r1 type, as well as an rfal mutant deficient i ... | 1977 | 338482 |
| role of phagocytosis in mouse virulence of salmonella typhimurium recombinants with o antigen 6,7 or 4,12. | the quality of lipopolysaccharide has previously been shown to influence the mouse virulence of salmonella so that strains with o antigen 4,12 were more virulent than their o-9,12 sister strains. immunosuppression did not alter this o-antigen-dependent difference in virulence. i have now constructed smooth o-4,12 and o-6,7 sister hybrid strains of salmonella typhimurium. no other phenotypic differences were found between these strains; they were all "common antigen" positive. in intraperitoneal ... | 1977 | 338484 |
| salmonella: an unusual urinary tract pathogen. | 1978 | 338869 | |
| inhibition by paromomycin of r-factor transfer of tetracycline resistance between escherichia coli and salmonella pullorum. | in vitro assays showed that low concentrations (5--10 and 20 microgram/ml) of the antimicrobial paromomycin sulfate are able to block or diminish significantly the transfer of the tetracycline resistance r-factor between escherichia coli and salmonella pullorum. this observation is important because it offers the possibility of preventing the formation of tetracycline-resistant pathogens, a limiting factor of tetracycline use in both human and veterinary medicine. | 1978 | 338888 |
| nitramino acids. synthesis and biological evaluation of 1-nitroproline, 1-nitropipecolic acid, and n-nitrosarcosine. | the n-nitro derivatives of secondary alpha-amino acids, viz., 1-nitroproline (1a) (l and d), 1-nitro-dl-pipecolic acid (2a), and n-nitrosarcosine (3a), were prepared by the oxidation of the corresponding nitrosamino acids with peroxytrifluoroacetic acid. these nitramino acids (1a-3a) were not active against escherichia coli, candida albicans, pseudomonas aeruginosa, or mycobacterium smegmatis, and 1a and 2a did not show mutagenic activity in a salmonella typhimurium ta-100 system, with or withou ... | 1977 | 338899 |
| synthesis and mutagenicity of modified chrysenes related to the carcinogen, 5-methylchrysene. | 1978 | 338903 | |
| genetic engineering in vivo using translocatable drug-resistance elements. new methods in bacterial genetics. | 1977 | 338917 | |
| [salmonella infections in childhood. personal cases]. | 1977 | 339053 | |
| structural requirements for the metabolic activation of benzo[a]pyrene to mutagenic products: effects of modifications in the 4,5-, 7,8-, and 9,10-positions. | 1977 | 339055 | |
| intrasanguine host-mediated assay with salmonella typhimurium. | 1977 | 339068 | |
| intergeneric mating: transfer of pola gene from e. coli to s. typhimurium. | 1977 | 339070 | |
| carcinogen activation by human liver enzymes in the ames mutagenicity test. | liver post-mitochondrial supernatants derived from 10 individuals were used as the source of metabolic activation for carcinogens in the ames quantitative mutagenicity test using salmonella typhimurium ta 100. the liver samples were obtained from brain-dead donors and autopsy cases. the ability of human enzymes to activate aromatic amines ranged from the undetectable to highly active for 2-acetylaminofluorene. none of the samples exhibited any ability to activate benzidine. a generally low activ ... | 1977 | 339071 |
| mutagenicity screening of five methyl carbamate insecticides and their nitroso derivatives using mutants of salmonella typhimurium lt2. | the mutagenic activity of five methyl carbamate insecticides-carbaryl, baygon, bux-ten, landrin and methomyl-and their nitroso derivatives were investigated using histidine auxotrophs-his ta98, his ta100, his ta1535, his ta1537 and his ta1538--of salmonella typhimurium lt2 derived by ames. the methyl carbamate insecticides did not cause a signficant increase in the number of revertant colonies in any of the strains used. in contrast, the nitroso derivatives of the carbamate insecticides greatly ... | 1977 | 339072 |
| mutagenicity of hydroxamic acids for salmonella typhimurium. | p-butoxyphenylacethydroxamic acid, benzohydroxamic acid, salicylhydroxamic acid, 2-naphthohydroxamic acid, indole-2-carbohydroxamic acid and benzoylaminoacethydroxamic acid were synthesized, and their mutagenicity for salmonella typhimurium strains ta98 and ta100 were determined. except for p-butoxyphenylacethydroxamic acid, all the hydroxamic acids were mutagenic for both strains. the mutagenicity progressed in the following order: 2-naphthohydroxamic acid greater than benzohydroxamic acid and ... | 1977 | 339075 |
| nonmutagenicity of tetrabromophthalic anhydride and tetrabromophthalic acid in the ames salmonella/microsome mutagenicity test. | 1977 | 339076 | |
| enhancing effect of harman on mutagenicity in salmonella. | 1977 | 339077 | |
| effects of near ultraviolet light on microorganisms. | 1977 | 339243 | |
| mutagenicity of fume particles from stainless steel welding. | welding fume particles collected from different welding procedures were tested for mutagenicity in escherichia coli, with the inhibition zone in pol a- as compared to pol a+, and in salmonella typhimurium, ta 100 strain. while no mutagenicity was found with mild steel welding, a mutagenic effect was established with samples from stainless steel welding. this mutagenicity was particularly associated with manual metal arc (mma) welding, and less so with metal inert-gas welding. a decrease in or an ... | 1977 | 339336 |
| [microbiological analysis of chicken manure]. | 1977 | 339510 | |
| [r-factor distribution and characteristics of the e. coli isolated from pigs]. | studied was the occurrence of the r-factors in escherichia coli isolated from pigs. it was demonstrated that in 73.3 per cent of the cases drug resistance could be transmitted to citrobacter. in this instance an occasional drop-out of the markers of resistance to kanamycin, neomycin, ampicillin, tetracycline, and chloramphenicol was observed. in the author's experiments no transmission of the marker of resistance to furazolidon was established. the transmission of the signs of resistance to kana ... | 1977 | 339513 |
| [value of serologic tests for elucidating the etiology of acute intestinal diseases]. | 1977 | 339545 | |
| immunochemical relations of salmonella paratyphi c with the salmonellae of group b. | agar-gel precipitations of proteins from s. paratyphi c, s. paratyphi b and s. typhimurium against homologous and heterologous antibacterial sera, prepared in rabbits, demonstrated a strong relatedness between these species belonging to different serogroups. the findings explain and substantiate previous experiments in which high cross-protections were obtained in groups of mice immunized with proteins from these species and subsequently infected with s. typhimurium or its "in vivo" related s. p ... | 1977 | 339608 |
| [fibrinogen level and fibrinolytic activity of plasma euglobulins from rabbits infected with different types of salmonella (author's transl)]. | in 84 rabbits, fibrinogen behaviour and fibrinolytic activity of the plasma euglobulins were evaluated in the course of experimental salmonellosis caused by s. typhimurium, s. choleraesuis, and s. agona. 10 healthy animals with pseudoinfection served as controls. disturbances of hemostasis expressed by a use of the fibrinogen level and inhibition of plasma-euglobulin fibrinolysis were established. an analysis of these changes and evaluation of the lethality among the animals used in the experime ... | 1977 | 339609 |
| [assessment of the diagnostic effectiveness of antigenic preparations from sonne shigellae]. | the authors studied the diagnostic possibilities of 4 diagnistic agents from sh. sonnei. a total of 1500 from 1122 persons were investigated. specificity and sensitivity of the diagnostic agents from sh. sonnei were determined. methodical priciples of the objective assessment of the diagnostic efficacy of the antigenic preparations in the controlled epidemiological trial were elaborated. a possibility of establishment of the etiological diagnosis of sonne dysentery in the passive hemagglutinati ... | 1977 | 339617 |
| salmonella in sewage and sludge. serological profiles of isolates, their removal and/or survival in relation to potential health hazards to man and animals. | 1977 | 339698 | |
| behavioral genetics in bacteria. | 1977 | 339820 | |
| illegitimate recombination in bacteria and bacteriophage. | 1977 | 339822 | |
| [transmissive drug resistance and virulence of "epidemic" strains of s. typhimurium]. | a total of 59 "epidemic" strains of s. typhimurium and 52 cultures isolated from the cases with sporadic diseases were studied with respect to the nature of their resistance to 10 antibiotics and virulence for albino mice under conditions of subcutaneous and oral inoculation. the virulence of the cultures isolated from the cases with sporadic diseases was higher in the strains sensitive to antibiotics. the "epidemic" strains were characterized by the lowest virulence for the mice and resistance ... | 1977 | 339823 |
| bacterial phosphoenolpyruvate: sugar phosphotransferase systems: structural, functional, and evolutionary interrelationships. | 1977 | 339892 | |
| [use of pre-enrichment for the isolation of salmonellae from sewage sludge and feces]. | 1977 | 339897 | |
| detection of mutagenic impurities in carcinogens and noncarcinogens by high-pressure liquid chromatography and the salmonella/microsome test. | we have used high-pressure liquid chromatography and the salmonella/microsome mutagenicity test to look for mutagenic impurities in 11 carcinogens and noncarcinogens. because of the million-fold range in mutagenic potency observed in the salmonella test, even trace amounts of potent mutagenic impurities in a nonmutagenic compound could be detected. the mutagenicity of 7-hydroxy-2-acetylaminofluorene, a noncarcinogen in the standard animal carcinogenicity tests, is shown to be due to a small amou ... | 1978 | 340030 |
| silver sulfadiazine: lack of mutagenic activity. | silver sulfadiazine was found to be devoid of mutagenic potential in a sensitive mutagenicity assay using salmonella typhimurium. in view of the close relationship between mutagenicity in this system and carcinogenicity in animals, these findings suggest that silver sulfadiazine is apparently also devoid of carcinogenic properties. | 1978 | 340170 |
| qualitative study of paradoxical zone phenomenon of penicillins against 17 bacterial species of clinical importance. | using a triple agar layer technique and enzymatic inactivation of penicillin, the occurrence of a paradoxical zone phenomenon (illustrated by a typical 'target' image around the reservoir of antibiotic) was determined for several bacterial species specially chosen with regards to their taxonomic position, clinical importance and penicillin susceptibility. among gram-positive bacteria, a paradoxical zone was obtained for approximately 43% of the strains studied here (all 10 strains of staphylococ ... | 1978 | 340171 |
| microheterogeneity in lipid a demonstrated by a new intermediate in the biosynthesis of 3-deozy-d-manno-octulosonic-acid--lipid a. | 1977 | 340225 | |
| purification and properties of phage p22 c2 repressor. | the c2 repressor of phage p22 has been purified to homogeneity. it specifically binds to lambdaimm21 and p22 dna. its affinity for the presumed operator mutant p22 virb is reduced. the initial dissociation rates of the complex between c2 repressor and lambdaimm21 dna are 0.02 min-1 at 0 degrees c, 0.08 min-1 at 20 degrees c and 0.17 min-1 at 32 degrees c. the dissociation rates of complexes formed between the c2 repressor and the lambdaimm21 operators or, ol and or vira were measured and compare ... | 1978 | 340229 |
| [comparative histological-morphometric study of the marginal zone and the germinal center of the rat spleen after endotoxin injection (author's transl]. | basing on the knowledge of structure and function of the marginal zone of the lymph follicle of the spleen in correlation with migration of lymphocytes to the red pulp and from there back to the lymph follicle (filtration of lymphocytes, so-called marginal zone bridging channel, role of the marginal sinus) a comparative study on the size of the marginal zone and germinal center following endotoxin-injection is presented. | 1977 | 340244 |
| increased susceptibility of trypanosoma lewisi infected, or decomplemented rats to salmonella typhimurium. | rats infected with trypanosoma lewisi or decomplemented by injection of cobra venom factor or complement activating factor of trypanosomes were found to be more susceptible to infection with salmonella typhimurium. decomplemented rats subsequently infected with t. lewisi developed higher blood parasitemia than did normal t. lewisi infected rats. | 1978 | 340247 |
| role of s. wien in the epidemic epizootiology of salmonellosis, zoonosis of dramatic distribution. | the appearing of s. wien and its diffusive and pathogenic distribution are reported within the general framework of salmonelloses and the problems of epidemiological and epizootiological nature that arise this zoonosis. the measures to be adopted are also stressed in view of a more strict control and protection of human and animal health together with environmental hygiene from salmonella infection and other enterobacteria which are increasingly met inhuman and animal pathology. in future notes ... | 1977 | 340401 |
| prevalence and epizootiology of equine salmonellosis. | feces from 1,451 horses entering a veterinary hospital over a 13-month period were cultured for salmonella. a total of 46 horses (3.2%) yielded 1 or more salmonella-positive fecal cultures. twenty horses were found to be excreting salmonella in the feces on admission, and 5 of these later had severe diarrhea associated with enteric salmonellosis. abdominal surgery and other severe stresses were associated with all cases of severe enteric salmonellosis. serotypes of salmonella isolated included s ... | 1978 | 340435 |
| biovaluation of the antibacterial flumequine for enteric use. | 1977 | 340442 | |
| an overview of recent experiences with plasmid-mediated antibiotic resistance or induced virulence in bacterial diseases. | 1977 | 340443 | |
| relationship between antibiotic feeding in animals and emergence of bacterial resistance in man. | 1977 | 340448 | |
| mutagenic activity of thiocarbamate herbicides in salmonella typhimurium. | 1978 | 340488 | |
| the hygienic quality of vegetables grown in or imported into the netherlands: a tentative survey. | samples of 61 home grown and 199 imported vegetables of different varieties were examined for escherichia coli, faecal streptococci and, when e. coli was present, for salmonellas. eleven per cent of samples contained greater than 10(4) e. coli per 100 g, and 14% greater than 10(6) faecal streptococci per 100 g. salmonellas were isolated from 23 out of 103 samples examined. salmonellas were isolated from 8% of 76 samples with e. coli less than 10(4)/100 g, but from 63% of 27 samples with e. coli ... | 1978 | 340581 |
| the effect of defined lipopolysaccharide core defects upon antibiotic resistances of salmonella typhimurium. | 1977 | 340606 | |
| quinoline: conversion to a mutagen by human and rodent liver. | quinoline, a hepatocarcinogen in rats, and 23 quinoline derivatives were tested for mutagenic activity with the ames salmonella typhimurium assay. quinoline, 5-hydroxyquinoline, and 8-hydroxyquinoline were mutagenic in strain ta 100 when aroclor 1254-induced rat (male outbred sprague-dawley) liver homogenate was present in the incubation mixture. enzyme preparations from rats pretreated with p-448-dependent aryl hydrocarbon hydroxylase inducers [3-methylcholanthrene (mca) and beta-naphthoflavone ... | 1978 | 340706 |
| biochemical characteristics and in-vitro drug sensitivity of salmonella typhimurium, copenhagen variety isolated from domestic and feral pigeons, crows, a kite, chickens and animals in japan. | 1977 | 340743 | |
| [isolation of salmonellae from streams in and about ankara (author's transl)]. | s.typhimurium, s.paratyphi b, s.typhi were isolated from 132 samples, collected from sewage of eight different regions, by using selenit f, wilson blair and mac conkey media. isolations were done in september, october, november and december. the isolations were 53% positive in these months. it was seen that s.typhimurium was dominant in ankara and widal reaction has to be concidered. | 1977 | 340855 |
| the role of ant-product of salmonella phage p22 in the process of transactivation of prophage px1 genes. | 1977 | 340893 | |
| an effect of f-like plasmids on the maintenance of flac in a dnac mutant of salmonella typhimurium. | flac maintenance was aberrant at permissive temperature in a temperature-sensitive dnac mutant of salmonella typhimurium when the normally resident plt2 plasmid was present. flac was, however, efficiently transferred into the dnac plt2+ strain and the resulting flac derivative was almost as efficient in transferring flac as was dnac+ plt2+ flac strains indicating that aberrant flac maintenance was not associated with appreciable inhibition of transfer replication. a range of f-like plasmids beha ... | 1977 | 340909 |
| the structure of the cyscdhij region in unstable cysteine or methionine requiring mutants of salmonella typhimurium. | a genetic method was devised to test the hypothesis that in some cysteine or methionine requiring (cym) mutants of salmonella typhimurium suppression of auxotrophy is due to an insertion at the site of the cym mutation. it was found that suppressed strains have an insertion of about 9kb in the cyscdhij region and that in unstable suppressed strains it is the instability of this insertion which results in the segregation of cym auxotrophs. | 1977 | 340911 |
| transduction of r plasmids by bacteriophages p1 and p22: distinction between generalized and specialized transduction. | 1977 | 340919 | |
| uv-sensitivity and repair of uv-damages in salmonella of wild type. | the uv-sensitivity of wild type salmonella strains has been compared to that of wild type e. cole and its uv-sensitive mutants. many wild type salmonella strains are 4-5 times more sensitive than wild type e. coli and their inactivation curves is similar to that for e. coli with a mutation in the pola gene. alkaline sucrose gradient centrifugation has shown a deficiency of these strains in normal excision repair of uv-damaged dna. this deficiency is not a salmonella genus feature because one str ... | 1977 | 340934 |
| [salmonella in minced meat from ten meat inspection services in the netherlands (author's transl)]. | throughout a period of thirteen months, samples of minced meat from ten different meat inspection services in the netherlands were examined weekly for the presence of salmonella. one hundred samples of 150 g. of each meat inspection service were studied by six different methods. marked differences in contamination of minced meat with salmonella were observed between the various localities. these were differences in the proportion of contaminated samples from each meat inspection service (lowest ... | 1978 | 341417 |
| salmonellosis in young calves due to salmonella enteritidis. | the clinical and epidemiological features of an outbreak of salmonellosis due to salmonella enteritidis in a group of calves are described. the major clinical signs were dullness, pyrexia and diarrhoea. five of the 15 calves died but deaths were mainly confined to the younger members of the group. the recovery of salmonella organisms from rectal swabs was maximal shortly before four of the five deaths occurred and declined rapidly thereafter. only two of the surviving 10 calves developed signifi ... | 1977 | 341475 |
| [contamination of the czechoslovak section of the danube by bacteria of the salmonella group (author's transl)]. | 120 water samples taken during 1972 and 1973 from 8 profilen of the danube as well as 15 samples taken from the morava and the váh rivers have been examined for salmonella contamination. salmonellas were present in 60-93.3% of examined water samples taken along the whole czechoslovak section of the danube. the results point on the longterm survival of salmonellas and consequently their long-distance contribution by the danube. we recovered altogether 769 salmonellas belonging to 11 serological g ... | 1977 | 341604 |
| association of some enterobacteria with the intestinal mucosa of mouse in relation to their partition in aqueous polymer two-phase systems. | the association of enterobacteria with mouse intestinal mucosa has been investigated by pumping heat-killed, radioactively-labelled bacteria through the gut lumen in vitro. approximately 20 cm of the small intestine proximal to the ileo-caecal valve was rinsed, excised and maintained in an organ bath. by using two different bacteria labelled with different radioactive isotopes, the relative association of the two bacterial pumped through the same piece of gut was determined. cross-labelling show ... | 1977 | 341643 |
| endocytosis of salmonella typhimurium 395 ms and mr10 by hela cells. | monolayer of hela cells were examined for their ability to endocytose salmonella typhimurium 395 ms (wild) and mr10 (chemotype rd). monolayers treated with the glycolytic inhibitors iodoacetic acid (iaa) or n-ethylmaleimide (nem) or the respiratory inhibitor sodium azide (nan3) or cytochalasin b (cb) were incubated with s. typhimurium. the numbers of cell-associated (intracellular plus cell-membrane attached extracellular) and intracellular bacteria were determined by viable counts, together wit ... | 1977 | 341644 |
| [salmonellosis in italy as based on data revealed by 4 centers for pathogenic enterobacteria in 1973-5]. | 1977 | 341766 | |
| [epidemiology of salmonellosis in animals]. | 1977 | 341767 | |
| [epidemiology of salmonellosis in humans]. | 1977 | 341768 | |
| [prevention of salmonellosis in veterinary medicine]. | 1977 | 341769 | |
| [physiological characteristics of salmonella typhimurium treated with penicillin]. | growing bacteria of the two strains of salmonella typhimurium differing in the sensitivity levels to uv-light formed multinuclear non-septal filaments in the penicillin-containing nutrient medium. the maximum number of the lifefull filaments was formed by the 4th hour of incubation in the beaf-peptone broth at a temperature of 37 degrees c in the presence of 5 gamma/ml of penicillin. the strains exposed to penicillin were less sensitive to uv-light. exclusion of penicillin from the nutrient medi ... | 1978 | 341800 |
| [detection of salmonella in surface waters]. | after a detailed description of some of the methods used for the research of salmonella in superficial waters, the aa. examine some problems relative to the collection of the samples and to the culture of these bacteria. results obtained in the po river and its affluents are also briefly presented; the high incidence of samples positive for salmonella is stressed and some aspects of an epidemiological nature are considered. | 1977 | 341819 |
| dual role of epoxide hydratase in both activation and inactivation of benzo(a)pyrene. | 1977 | 341851 | |
| inactivation of electrophilic metabolites by glutathione s-transferases and limitation of the system due to subcellular localization. | 1977 | 341852 | |
| species differences in activating and inactivating enzymes related to the control of mutagenic metabolites. | microsomal monooxygenases catalyze the biosynthesis of epoxides from olefinic and aromatic compounds whilst microsomal epoxide hydratase and cytoplasmic glutathione s-transferases are responsible for their further biotransformation. although catalytically very efficient the cytoplasmic glutathione s-transferases play, due to their subcellular localization, a minor role in the inactivation of epoxides derived from large lipophilic compounds and were, therefore, not included in this study. it was ... | 1977 | 341853 |
| the response of foetal sheep to the somatic and flagellar antigens of salmonella typhimurium. | following the injection of polymeric flagellin (pol), foetal sheep older than 70 days gestation produced haemagglutinating antibody and synthesized igm. the maximum titre of antibody in the blood increased with the age at which the foetus was injected. all foetuses synthesized 2-mercapto-ethanol-sensitive antibodies, while older foetuses (approximately 120 days gestation) also produced 2-mercaptoethanol-resistant antibodies and synthesized igg1. during the primary immune response, there was a po ... | 1977 | 341873 |
| mutagenicity of butadiene and butadiene monoxide. | 1978 | 341894 | |
| [experimental studies in animals on the influence of fluocortin butylester on the course of generalized infections (author's transl)]. | the influence of butyl 6alpha-fluoro-11beta-hydroxy-16alpha-methyl-3,20-dioxo-1,4-pregnadien-21-oate (fluocortin butylester, vaspit), a new corticosteroidal compound with a marked dissociation between local antiinflammatory and systemic action, upon resistance against infections was studied in experimental bacterial and fungal infections in mice. the results of the experiments showed, that fluocortin butylester, even after repeated s.c. or oral administration of dosages up to 100 mg/kg did not d ... | 1977 | 341900 |
| sodium-dependent binding of p-nitrophenyl alpha-d-galactopyranoside to membrane vesicles isolated from salmonella typhimurium. | 1978 | 341975 |