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observations on the m-wave and the cnv in the squirrel monkey.a typical cnv paradigm, with food as reward, evokes in the squirrel monkey's post-arcuate and post-central cortices both m-waves in response to the cues and what appears to be a cnv in the interstimulus interval. both wave forms appear to be generated locally in cortex and to be more closely related temporally to the cues than to the animal's behavioral response. the cnv, like the m-wave, appears to reflect the animal's level of interest in obtaining the reward. it is smaller when the animal mis ...197985525
[research on the differential reaction of labelled 4-dimethylamine-3'-methyl-azobenzene in liver cells]. 19664966453
high-resolution genotypic analysis of the genus aeromonas by aflp fingerprinting.we investigated the ability of a recently developed genomic fingerprinting technique, named aflp, to differentiate the 14 currently defined dna hybridization groups (hgs) in the genus aeromonas. we also determined the taxonomic positions of the phenospecies aeromonas allosaccharophila, aeromonas encheleia, aeromonas enteropelogenes, and aeromonas ichthiosmia, which have not been assigned to hgs yet. a total of 98 aeromonas type and reference strains were included in this study. for the aflp anal ...19968934910
hemolytic activity and siderophore production in different aeromonas species isolated from fish.the hemolytic activity and siderophore production of several strains of motile aeromonads were determined. the hemolytic activity of aeromonas caviae and aeromonas eucrenophila was enhanced after trypsinization of the samples. the enhancement of hemolysis was observed in strains that carried an aerolysin-like gene, detected by a pcr procedure. siderophore production was demonstrated in all but one strain of aeromonas jandaei. no apparent relationship was observed between the presence of plasmid ...199910584028
virulence patterns of aeromonas eucrenophila isolated from water and infected fish.six isolates of aeromonas eucrenophila--2 from water and 4 from superficial skin ulcer of cat fish--were examined for haemagglutination, serum sensitivity, chitinase production and enterotoxicity, and correlation, if any, between them; only one strain showed haemagglutination and was inhibited by both d-mannose and l-fucose. all the strains showed resistance to normal human serum, but produced chitinase; one of them elaborated inducible chitinase. all these strains caused fluid accumulation only ...199910892496
epidemiological relationships between aeromonas strains isolated from symptomatic children and household environments as determined by ribotyping.ribotyping was used to study the epidemiology of aeromonas associated gastro-enteritis in young children. ribotyping patterns of 29 aeromonas strains (16 aeromonas caviae, 8 aeromonas hydrophila, 3 aeromonas eucrenophila, 1 aeromonas veronii, and 1 aeromonas encheleia) isolated from primary stool cultures of sick children were compared using the gelcompare software with patterns of 104 strains (39 aeromonas eucrenophila, 29 aeromonas caviae, 11 aeromonas encheleia, 10 aeromonas hydrophila, 6 aer ...200010997832
characterization of aeromonas encheleia strains isolated from aquatic environments in the czech republic.characterization and identification of aeromonas strains isolated from surface and underground waters using phenotypic and genotyping methods.200919055626
absence of anthracycline-induced degradation of nuclear dna in ehrlich ascites tumour cells.the in vivo effects of anthracycline antibiotics on the integrity of ehrlich ascites tumour cell dna have been studied by sedimentation analysis of nuclear structures containing superhelical dna in neutral sucrose gradients. these fast-sedimenting protein-dna complexes may be released by gently lysing cells in solution containing non-ionic detergents and high nacl concentrations (1.95 m). the supercoiled structure of dna in these protein-dna complexes is suggested by the characteristic sedimenta ...199985499
immunologic features of a carcinogen-induced murine bladder cancer: in vivo and in vitro studies.certain in vivo and in vitro immunologic features of carcinogen-induced murine bladder cancer have been studied. the consistency of tumor induction, its natural history, and immunogenicity both in vivo and in vitro render this syngeneic murine bladder tumor a suitable model for immunologic studies. pre-immunization of strain c3h/hen mice with mid-gestational fetal cells did not protect the animals from tumor challenge. sera of mice immunized with mid-gestational fetal cells were not cytotoxic to ...200086659
direct evidence of recombination in the reca gene of aeromonas bestiarum.two hundred and twenty-one strains representative of all aeromonas species were characterized using the reca gene sequence, assessing its potential as a molecular marker for the genus aeromonas. the inter-species distance values obtained demonstrated that reca has a high discriminatory power. phylogenetic analysis, based on full-length gene nucleotide sequences, revealed a robust topology with clearly separated clusters for each species. the maximum likelihood tree showed the aeromonas bestiarum ...201626934994
aeromonas tecta sp. nov., isolated from clinical and environmental sources.five aeromonas strains, isolated from both clinical and environmental sources and characterized by a polyphasic approach, including phylogenetic analysis derived from gyrb, rpod, and 16s rrna gene sequencing, as well as dna-dna hybridization, extensive biochemical and antibiotic susceptibility tests, were recognized as members of an unknown, or undescribed, aeromonas species. these "aeromonas eucrenophila-like" strains were closely related to the species a. eucrenophila and aeromonas encheleia, ...200818617346
polyphasic taxonomic study of "aeromonas eucrenophila-like" isolates from clinical and environmental sources.in the current study, a group of 17 "aeromonas eucrenophila-like" isolates from clinical and environmental origins was subjected to a polyphasic taxonomic characterization including ribotyping, 16s rdna sequencing, faflp fingerprinting, and biochemical testing. genotypic, phylogenetic, and phenotypic results were consistent with the conclusion that this group of 17 isolates may represent a currently undescribed aeromonas taxon most closely related to a. eucrenophila hg6. in addition, comparison ...200415214640
enterotoxicity, haemolytic activity and antibiotic susceptibility of aeromonas eucrenophila strains isolated from water and infected fish.strains of a. eucrenophila isolated from fresh water (2 strains) and infected fish (4 strains) were tested for haemolytic activity and enterotoxicity and any correlation between them. also, the resistance patterns of a. eucrenophila were tested especially in relation to ampicillin. none of the a. eucrenophila strains caused fluid accumulation in the initial tests, however, they did so only after one to four sequential passages through the gut of a susceptible host. all the strains of a. eucrenop ...19979315221
aeromonas eucrenophila species nova aeromonas caviae a later and illegitimate synonym of aeromonas punctata.aeromonas caviae is a later and illegitimate synonym of aeromonas punctata. in order to secure continuity in literature, it is proposed to use the trivial term "caviae type" in connection with the species name a. punctata temporarily especially for strains isolated in connection to diarrhoea in children. aeromonas eucrenophila sp. nov. is described, type strain in ncmb 74. the new aerogenic psychrotrophic aeromonas species is separated genotypically from aeromonas hydrophila and aeromonas puncta ...19883394446
prevalence of enterotoxin genes in aeromonas spp. isolated from children with diarrhea, healthy controls, and the environment.aeromonads are causative agents of a number of human infections. even though aeromonads have been isolated from patients suffering from diarrhea, their etiological role in gastroenteritis is unclear. in spite of a number of virulence factors produced by aeromonas species, their association with diarrhea has not been clearly linked. recently, we have characterized a heat-labile cytotonic enterotoxin (alt), a heat-stable cytotonic enterotoxin (ast), and a cytotoxic enterotoxin (act) from a diarrhe ...200011015403
inclusion of aeromonas dna hybridization group 11 in aeromonas encheleia and extended descriptions of the species aeromonas eucrenophila and a. encheleia.the recently reported chemotaxonomic and genotypic description of two well-separated subgroups (i and ii) in aeromonas eucrenophila and their affiliation to aeromonas encheleia and the unnamed aeromonas dna hybridization group (hg) 11 (g. huys, m. altwegg, m.-l. hänninen, m. vancanneyt, l. vauterin, r. coopman, u. torck, j. lüthy-hottenstein, p. janssen, and k. kersters, syst. appl. microbiol. 19:616-623, 1996) has questioned the original species descriptions of a. eucrenophila and a. encheleia. ...19979336923
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