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somatic o antigen relationship of brucella and vibrio cholerae.the antigenic relationship between brucella species and vibrio cholerae was examined by agglutinin and agglutinin-absorption tests by using rabbit antisera. brucella antisera agglutinated only the inaba serotype of v. cholerae and at low titer. inaba-reactive antibody was absorbed by either heat-stable (100 c, 2 hr) ogawa or inaba o antigens. cholera antisera from rabbits immunized with either o or ho antigens of either ogawa or inaba serotypes contained brucella agglutinins. this activity was a ...19695370272
progressive changes of vibrio serotypes in germ-free mice infected with vibrio cholerae.germ-free mice inoculated with vibrio cholerae became colonized with vibrios throughout the gastrointestinal tract, but they did not become ill. high vibrio concentrations in the feces were observed throughout the 3 months of observation in spite of the presence of serum antibody. reciprocal conversions of both inaba and ogawa serotypes occurred regularly after inoculation and could be correlated temporally with the appearance of serum-agglutinating antibody. both of these smooth serotype were l ...19695370274
sex pili in vibrio cholerae. 19695373694
observations on experiments on infant rabbits with vibrio cholerae. 19695374754
diarrhea and accumulation of intestinal fluid in infant rabbits infected with vibrio cholerae in an isolated jejunal segment. 19695374968
the appearance of a choleragenic agent in the blood of infant rabbits infected intestinally with vibrio cholerae, demonstrated by cross-circulation. 19695374970
bacteriocin production by vibrio cholerae. i. effects of vibriocins on vibrio cholerae. 19695399687
release of p-32 compounds from labelled vibrio cholerae and vibrio el tor in ethanol. 19695402473
action of cholera phages on rough strains of classical vibrio cholerae. 19695402474
serological evidence for the identity of the vascular permeability factor and ileal loop toxin of vibrio cholerae. 19705415045
serological identities of proteases and alkaline phosphatases of the so-called nonagglutinable (nag) vibrios and those of vibrio cholerae. 19705415046
mode of action of vibriocin.the mechanism of action of vibriocin, a bacteriocin produced by vibrio comma, was investigated. its lethal action (as defined by the loss in colony-forming ability) was reversed by tryptic digestion within 7 to 10 min after adsorption. the bacteriocin had a pronounced inhibitory effect on deoxyribonucleic acid (dna) synthesis, whereas ribonucleic acid (rna) and protein synthesis continued, although at a reduced rate. chloramphenicol protected sensitive bacteria from the lethal action. degradatio ...19705419258
magnitude and duration of antitoxic response to human infection with vibrio cholerae. 19705421427
peanut hydrolysate as a growth medium for vibrio cholerae (ogawa). 19705424359
protective effect on infections with vibrio cholerae in suckling mice caused by the passive immunization with milk of immune mothers. 19705463400
polyphasic taxonomy of the genus vibrio: numerical taxonomy of vibrio cholerae, vibrio parahaemolyticus, and related vibrio species.a set of 86 bacterial cultures, including 30 strains of vibrio cholerae, 35 strains of v. parahaemolyticus, and 21 representative strains of pseudomonas, spirillum, achromobacter, arthrobacter, and marine vibrio species were tested for a total of 200 characteristics. morphological, physiological, and biochemical characteristics were included in the analysis. overall deoxyribonucleic acid (dna) base compositions and ultrastructure, under the electron microscope, were also examined. the taxonomic ...19705473901
isolation of vibrio cholerae from a well water during a small outbreak of cholera. 19705480374
studies on the mechanism of inhibition of growth of vibrio cholerae by erythrose. 19705487181
chloride dependent growth stimulation of vibrio cholerae (569b inaba). 19705502346
mechanism of action of berberine on vibrio cholerae and vibrio cholerae biotype eltor. 19705505340
effect of berberine on the fatty acid composition of vibrio cholerae and vibrio cholerae biotype eltor. 19705505341
a comparison of strains of so-called nag vibrios with those of strains of vibrio cholerae. 19705505342
a note on designating strains as vibrio cholerae biotype el tor. 19705506195
[an outbreak of intestinal infection due to vibrio cholerae in jerusalem]. 19705512773
incorporation of phenylalanine and uridine by streptomycin-sensitive and streptomycin-dependent vibrio cholerae ogawa ribosomal particles. 19705524317
[gelatin liquefaction by the supernatant of the culture fluid of vibrio cholerae]. 19705528686
[casein digestion by the supernatant of the culture fluid of vibrio cholerae]. 19705528687
[inactivation of colicine by the supernatant from the culture fluid of vibrio cholerae]. 19705528688
[study of vibrio cholerae strains isolated in iran and irak during the 1965-1966 epidemic]. 19705536443
survival of cholera vibrios in food, water and fomites. 19705538199
classification and characteristics of vibrios. 19705538200
cholera phages. 19705538201
human lymphocyte antigen reactivity modified by neuraminidase.human lymphocytes treated with neuraminidase (from vibrio cholera) are more susceptible to lysis with antiserums directed against hl-a antigens in the cytotoxicity test than are the corresponding cells incubated in buffer. enzymetreated cells are also lysed by antibodies other than those directed against hl-a, but control cells are not. the extra sensitivity to antibody disappears after 2 to 6 days in tissue culture.19715564043
amino acid and nitrogen metabolism in chick embryos infected with staphylococcus aureus or vibrio cholerae. 19715570558
some observations on the metabolic activities of chicken cells agglutination positive and negative strains of vibrio cholerae. 19675595577
distribution of vibrio cholerae in the intestine. 19675596264
electron microscopy of particles associated with a bacteriocinogenic vibrio cholerae strain. 19685640388
fatty acids from vibrio cholerae lipids. 19685640986
site and characteristics of electrolyte loss and effect of intraluminal glucose in experimental canine cholera.the site and characteristics of gastrointestinal electrolyte loss were investigated in eight dogs with experimental cholera induced by orogastric administration of 6-hr broth cultures of vibrio cholerae, strain ogawa 395. in these animals, all electrolyte losses originated in the small bowel, predominantly from the jejunum and ileum. the bicarbonate concentration of the small bowel fluid showed a progressive increase from duodenum, where it was less than that of plasma, to the terminal ileum, wh ...19685645863
streptococcal sialidase. ii. kinetic and immunological studies of sialidase produced by group k streptococcus.kinetic and immunological studies were carried out on the sialidase produced by strain 6646, group k streptococcus (k-sialidase). the k(m) values of k-sialidase were 0.9 mm for sialyllactose and 0.17 mm for bovine submaxillary mucin. the antibody against k-sialidase was produced in rabbits immunized with this enzyme. an assay procedure for determination of the anti-k-sialidase activity in terms of reciprocal of the serum dilution corresponding to the 50% inhibition point is described. anti-k-sia ...19685650066
the in vitro activity of halquinol against vibrio cholerae. 19685657269
particulate nature of vibriocin: a bacteriocin from vibrio comma. 19685659626
in vitro production of choleragen and vascular permeability factor by vibrio cholerae.the in vitro production of significant amounts of extracellular choleragen and vascular permeability factor (pf) by vibrio cholerae strain vc-12 (ogawa) in a basal peptone medium required forced aeration, low incubation temperature, and a low initial ph. filtrates of alkaline peptone cultures of vc-12 grown at 37 c contained an ion translocase inhibitory activity but neither choleragen nor pf activity, sterile filtrates of ph 6.5 peptone cultures of vc-12 grown at 29 c contained no ion transloca ...19685663564
esterases and dna base composition analysis of vibrio cholerae and related vibrios. 19685698667
behaviour of an epidemic of vibrio cholerae el tor in gurgaon district, haryana state. 19685701286
some observations on vibrio cholerae. 19685701989
laboratory methods in cholera: isolation of vibrio cholerae (el tor and classical) on tcbs medium in minimally equipped laboratories. 19685707921
morphological changes of vibrio cholerae organisms in glucose saline. 19685709282
comparison of hemolysin, hemolysin-destructive factor and hemodigestive enzyme production by strains of vibrio cholerae and vibrio cholerae type el tor. 19685718716
cyclopropane fatty acids of rugose vibrio cholerae. 19685724978
effect of sodium lauryl sulphate on vibrio cholerae: turbidimetric and electron microscopic study. 19685732219
survival of vibrio cholerae in some of the waters of calcutta. 19695770842
disinfection of household articles contaminated with vibrio cholerae. 19695770843
some observations on vibrio cholerae. 19695771179
experimental canine cholera. ii. production by cell-free culture filtrates of vibrio cholerae. 19695776005
experimental canine cholera. iv. the chronic carrier state for vibrio cholerae. 19695776007
sialidase-like enzymes produced by group a, b, c, g, and l streptococci and by streptococcus sanguis.a group of enzymes were prepared from the culture fluids of streptococci belonging to groups a, b, c, g, and l, and from a strain of streptococcus sanguis. these streptococcal enzymes (designated st-sialidases) released a substance shown to belong to the sialic acid group from the specific substrate bsm-st, a sialomucoid prepared from bovine submaxillary gland. they were inactive on n-acetylneuramin lactose prepared from bovine colustrum and on a sialomucoid prepared from bovine submaxillary muc ...19695776530
neutralization of the vascular permeability factor of vibrio cholerae in man. 19695777737
agglutinating and bactericidal properties of fractions of rabbit anti-vibrio cholerae serum.the major portion of the agglutinating and bactericidal activity of the sera of rabbits immunized with live vibrio cholerae or with cholera vaccine was found in the gammam fractions during the early stages of immunization. after 5 weeks or more, gammag fractions accounted for more than half of the agglutinating activity. when late antibody was measured as the amount of protein precipitated by somatic antigens, nearly 3 times as much gammag as gammam was required for agglutination, and about 30 t ...19695788722
separation of type 2 toxins of vibrio cholerae.choleragenic toxin was separated from vascular permeability factor by ion-exchange chromatography of supernatants of dialyzed peptone cultures of vibrio cholerae. the choleragenic toxin eluted from columns of qae-sephadex with low-ionicity systems is free of permeability factor activity. further elution of these columns with 0.5m nacl removes both the permeability factor and residual choleragenic toxin. when this latter material is chromatographed on columns of carboxymethyl-sephadex, the permea ...19695804723
studies on the mode of action of streptomycin on vibrio cholerae and vibrio el tor. 19695824006
tetracycline sensitivity of vibrio cholerae in calcutta. 19655827191
some observations on vibrio cholerae strains isolated during the controlled field trial of cholera vaccines in calcutta in 1964. 19655827507
studies on the growth inhibitory effect of erythrose on vibrio cholerae. 19655840410
effect of tetracycline in hypotensive patients with non-vibrio cholera-like disease in calcutta. 19655882326
[a method for the determination and study of polysaccharides in vibrio cholerae]. 19655885701
hemolysin-destructive factor of vibrio cholerae (vibrio comma). 19665903110
antibody formation against vibrio cholerae by mesenteric lymph node cell transfer. 19665917020
preparation of the vascular permeability factor of vibrio cholerae. 19665922548
cholera in the perspective of 1966.cholera is a disease state caused by the vibrio cholerae. the vibrios remain in the gut lumen, and the disease is atypically afebrile. the main symptom is a profuse isotonic diarrhea of rice-water character with an output rate of as much as 1 liter/hour. early signs in the untreated patient are skeletal muscle cramps (presumably due to electrolyte loss) and vomiting. mortality rate in untreated cases may be as high as 80%, and in treated cases, 20%. the u.s. navy method of treating chlera h ...19665923097
laboratory vibrio cholerae infection in the united states. 19665952839
incorporation of p-32 activity in different chemical fractions of vibrio cholerae. 19665959890
some ultrastructural aspects of vibrio cholerae. 19665961046
[a new medium for the isolation of vibrio cholera]. 19665963392
variation in a strain of classical vibrio cholerae. 19665970132
effect of nutrients on the antigenic structure of vibrio cholerae. 19665976561
effect of toluene on vibrio cholerae. 19665981465
formation of protoplasts from vibrio cholerae. 19666003986
[frequency of phage-resistant mutations and effect of the bacteriophage on the formation of resistant forms of vibrio cholera]. 19666005460
culture of serum-induced spheroplasts from vibrio cholerae.spheroplasts of vibrio cholerae types inaba, hikojima, and ogawa were produced in serum. an excess of lysozyme was added to expedite transformation, and cacl(2) was used as the stabilizing agent. at the optimal time for each strain, when less than 1% classical rod forms were observed microscopically, samples were plated on both conventional and modified l-form media. no growth occurred on conventional media; l-form type colonies appeared on l-form media after 2 to 6 days of incubation. l-form co ...19676025453
method for determining antineuraminidase activity.a test was developed to screen drugs for antineuraminidase (influenza sialidase) activity in vitro. neuraminidase prepared from vibrio cholerae was added to a substrate containing ganglioside, prepared from calf brain. sialic acid is a split product in the reaction. the presence of sialic acid was detected colorimetrically by use of warren's thiobarbituric acid assay after drugs had been added to inhibit the action of neuraminidase on the calf brain substrate.19676029825
studies in immunochemistry of vibrio cholerae. vii. action of enzymes on the antigens. 19676056277
spot plate method for the detection of hemolysin and hemodigestive enzyme of vibrio cholerae. 19676064849
[atypical forms of vibrio cholerae]. 19836086048
transposon-mediated mutagenesis and recombination in vibrio cholerae.an efficient method for introducing transposons into the vibrio cholerae chromosome or the p plasmid was developed by using f'tslac+ plasmids from escherichia coli as suicide delivery vehicles. hybrid p::tn1, tn5 and p::tn1, tn10 plasmids containing tn5 or tn10 in either of the two possible orientations were constructed. during conjugation, these hybrid plasmids mediated oriented transfer of markers from the sites of insertion of homologous transposons in the donor chromosome. the collection of ...19846086528
[use of r plasmids for isolating vibrio cholerae donor strains].vibrio cholerae and vibrio eltor donor strains were obtained using r plasmids rp1ts, prp19.6, pth10 and pns10 which carry is or tn elements. resulting from integration of the plasmids into cholera vibrio chromosome, two types of donors were constructed: those resembling escherichia coli hfr's and the strains analogous to f+ or f' donors. the order of some chromosome markers were determined in crosses between the donors obtained and v. cholerae recipient strains.19846088363
[lymphatic diseases specific to the tropics (burkitt's lymphoma, tropical splenomegaly and mediterranean lymphoma)].certain lymphoproliferative disorders (burkitt's lymphoma, tropical splenomegaly, and mediterranean lymphoma) are more frequently observed in the tropical or subtropical areas than in other parts of the world. the polymicrobial exposure of human beings in those areas to viral, bacterial and protozoal infections led to the assumption of a specific connection between these conditions and the lymphoproliferative disease. some evidence has accumulated that the epstein-barr virus might be an oncogeni ...19846089444
vibrio cholerae enterotoxin genes: nucleotide sequence analysis of dna encoding adp-ribosyltransferase.the nucleotide sequence of the dna encoding the adp-ribosyltransferase (a1) fragment of cholera enterotoxin was determined. a putative precursor of the a1 peptide contains an 18-amino acid leader peptide, and the mature a1 peptide contains 194 amino acids. the primary structure of the a1 fragment from cholera enterotoxin is more related to that from a human enterotoxigenic escherichia coli than to that from a porcine enterotoxigenic e. coli.19846090390
molecular cloning of the hemolysin determinant from vibrio cholerae el tor.vibrio cholerae el tor rv79 is phenotypically nonhemolytic; however, strongly hemolytic convertants are occasionally observed on blood agar plates. we have cloned dna sequences corresponding to the hemolysin determinant from rv79 (hly+) in the lambda l47.1 and pbr322 vectors. a 2.3-kilobase fragment of v. cholerae dna was found to be necessary for hemolytic activity. this cloned dna sequence was used as a probe in southern blot hybridization analysis of chromosomal restriction digests of a varie ...19846090415
adenylate cyclase activity in toxigenic and nontoxigenic strains of vibrio cholerae: effect of different carbohydrates. 19836094650
[cholera research 100 years after its discovery--current topics]. 19846094878
serology and plasmid carriage in vibrio cholerae.vibrio cholerae strains of the 01 serovar, isolated from both clinical and environmental sources, had a much lower frequency of plasmid carriage (2/112 = 2%) than clinical and environmental non-01 serovar isolates (46/187 = 25%). the cryptic plasmids found in non-01 strains were all of low molecular weight and were shown by hybridization analysis to consist of two unrelated subgroups. each subgroup was observed to be present in strains isolated from both clinical and environmental sources. one 0 ...19846095986
[h-nmr spectroscopy. specificity of microbial sialidases against complex substrates].the specificities of one viral and five bacterial sialidases were investigated by 1h-nmr-spectroscopy with substrates or substrate mixtures containing two sialic acid residues of different linkage types. this technique allows - in contrast to the methods used before - the simultaneous determination of the rates of hydrolysis of both neuac linkages in a single experiment. the substrate specificities of the enzymes are discussed on the basis of the relation of the rate constants k/k'. the data obt ...19846096253
[acute gastroenteritis and breast feeding in gabon. preliminary results].76 diarrheic infants (from 15 days to 2 years) had a stool examination for rotavirus (elisa method) and a stool culture and were classified according to breast feeding or not. this study was performed in a semi-urban region (haut-ogooué, gabon). the preliminary results suggest a protection by breast feeding against rotavirus and enteropathogenic bacteria, rapid elimination of diarrheic agents may be facilitated by human milk.19846097788
cloning of the structural gene (hly) for the haemolysin of vibrio cholerae el tor strain 017.we have cloned the dna encoding the haemolysin of vibrio cholerae el tor strain 017 into the plasmid vector pbr322. the resultant plasmid, ppm431, has a 6.2-kb psti dna insert which leads to the production of the haemolysin in escherichia coli k-12. deletion analysis and transposon mutagenesis have allowed us to localize several regions affecting haemolysin production. a number of these mutants have been analysed in e. coli k-12 minicells. three proteins have been identified: a, 80 kdal; b, 71 k ...19846098527
role of rotavirus as the cause of acute paediatric diarrhoea in calcutta.of the 245 acute paediatric diarrhoea cases admitted to the infectious diseases hospital, calcutta between july, 1979 and june, 1981, rotavirus was detected in the faeces of 55 (22.4%) patients either as the sole aetiological agent or in association with other enteropathogens. children aged six months to two years were most commonly infected. the virus was detected throughout the year with higher incidence during the winter months of both years. the frequency of detection of major enteropathogen ...19846099923
plasmid-encoded multiple antibiotic resistance in vibrio cholerae el tor from bangladesh. 19806104055
enterotoxigenic escherichia coli: identification and characterization. 19806106031
binding of intraluminal toxin in cholera: trial of gm1 ganglioside charcoal.a study was undertaken to investigate whether toxin produced in the gut lumen contributes significantly to clinical illness and whether binding such toxin by gm1 ganglioside adsorbed onto charcoal could alter the clinical course of disease. 46 patients with severe cholera receiving standard intravenous therapy were randomly assigned to one of three groups: gm1 ganglioside-charcoal (16), charcoal alone (16), or water (14). the results demonstrated that patients were given sufficient gm1 gangliosi ...19806107548
imported cholera detected by routine stool culture. 19806107702
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