Animal growth promoters: to ban or not to ban? A risk assessment approach (2004)
Kelly, L.A., Smith, D.L., Snary, E.L., Johnson, J.A., Harris, A.D., Wooldridge, M., ...
The use of antibiotics for animal growth promotion has been controversial because of the potential transfer of antibiotic resistance from animals to humans. Such transfer could have severe public...
Animal growth promoters: to ban or not to ban? A risk assessment approach (2004)
Kelly, L.A., Smith, D.L., Snary, E.L., Johnson, J.A., Harris, A.D., Wooldridge, M., ...
The use of antibiotics for animal growth promotion has been controversial because of the potential transfer of antibiotic resistance from animals to humans. Such transfer could have severe public...
Annealing Response of 3000 and 5000 Series Aluminum Alloys. (1998)
Merchant, H. D., Morris, J. G.
For the Mn-free (5005) and Mn-bearing (3004) aluminum alloys, the partitioning of Mn and Fe between the matrix and the intermetallics was varied by utilizing ingot and strip cast alloys and by...
Characterization of Intermetallics in Aluminum Alloy 3004. (1998)
Merchant, H. D., Morris, J.G., Hodgson, D. S.
The evolution of intermetallics in aluminum alloy 3004 from the casting to the thin-sheet stages is examined; two casting types have been utilized: 650-mm-thick D.C. ingot and 12-mm-thick...
Strain Age Strengthening of 3004 Aluminium Alloy. (1998)
Merchant, H. D., Morris, J. G., Barsoum, M.
AA 3004 hardening during cold and warm rolling was examined; the hot-rolled alloy was responsive to the dynamic strain aging (DSA) temperature limits; 25-50% strength improvement of the rolled sheet...
The Tensile Deformation Behavior of AA 3004 Aluminum Alloy. (1998)
AA 3004 aluminum alloy for can body stock exhibits interesting serrated flow in the stress-strain curves at room temperature. The serrated-flow phenomena are associated with dynamic strain aging and...
Love, Robert F, Morris, J.G. (James G.), Wesolowsky, George O
Incluye bibliografía e índice
Oxygen toxicity. Group report (1979)
Kuenen, J.G., Hassan, H.M., Krinsky, N.I., Morris, J.G., Pfennig, N., Schlegel, H., ...
A review and discussion with 30 refs
Thesis (Honours) - University of Queensland.
Distribution of Vibrio vulnificus in the Chesapeake Bay.
Wright, A C, Hill, R T, Johnson, J A, Roghman, M C, Colwell, R R, Morris, J G
Vibrio vulnificus is a potentially lethal human pathogen capable of producing septicemia in susceptible persons. Disease is almost always associated with consumption of seafood, particularly raw...
Losonsky, G A, Lim, Y, Motamedi, P, Comstock, L E, Johnson, J A, Morris, J G, ...
The emergence of a new agent of cholera, Vibrio cholerae O139, has prompted a reevaluation of the vibriocidal antibody assay. This assay, primarily directed to lipopolysaccharide, is an important...
Schwalbe, R S, Hoge, C W, Morris, J G, O'Hanlon, P N, Crawford, R A, Gilligan, P H
We report the recovery of Salmonella typhi that acquired resistance to ampicillin, chloramphenicol, trimethoprim-sulfamethoxazole, and gentamicin subsequent to multiple antibiotic therapy....
Kaper, J B, Morris, J G, Levine, M M
Despite more than a century of study, cholera still presents challenges and surprises to us. Throughout most of the 20th century, cholera was caused by Vibrio cholerae of the O1 serogroup and the...
Comstock, L E, Maneval, D, Panigrahi, P, Joseph, A, Levine, M M, Kaper, J B, ...
Vibrio cholerae O139 Bengal, although closely related to V. cholerae O1 El Tor, produces a polysaccharide capsule and has a distinct O antigen. We have identified a chromosomal region of at least 11...
Devi, S J, Hayat, U, Frasch, C E, Kreger, A S, Morris, J G
Vibrio vulnificus causes septicemia and wound infections in immunocompromised humans. The capsular polysaccharide of Vibrio vulnificus (VvPS) is critical for virulence. We synthesized conjugate...
Nataro, J P, Seriwatana, J, Fasano, A, Maneval, D R, Guers, L D, Noriega, F, ...
We have employed a molecular genetic approach to characterize the nature of enteroinvasive Escherichia coli (EIEC) enterotoxic activity, as previously observed in Ussing chambers (A. Fasano, B.A....
Devi, S J, Hayat, U, Powell, J L, Morris, J G
Vibrio vulnificus is an oyster-associated bacterial pathogen that causes life-threatening fulminating septicemia and necrotizing wound infections in humans. The capsular polysaccharide of V....
Powell, J L, Wright, A C, Wasserman, S S, Hone, D M, Morris, J G
Vibrio vulnificus produces a severe septic shock syndrome in susceptible individuals. Virulence of the bacterium has been closely linked to the presence of a surface-exposed acidic capsular...
Preston, L M, Xu, Q, Johnson, J A, Joseph, A, Maneval, D R, Husain, K, ...
Vibrio cholerae O139 Bengal has recently been identified as a cause of epidemic cholera in Asia. In contrast to V. cholerae O1, V. cholerae O139 Bengal has a polysaccharide capsule. As determined by...
Morris, J G, Tenney, J H, Drusano, G L
The in vitro activity of norfloxacin and six other antimicrobial agents was tested against 93 vibrio strains representing the currently described pathogenic Vibrio species. Norfloxacin had excellent...
Johnson, J A, Salles, C A, Panigrahi, P, Albert, M J, Wright, A C, Johnson, R J, ...
Although Vibrio cholerae O139 synonym Bengal strains, from the current epidemics in India and Bangladesh, are closely related to seventh-pandemic strains, as shown by multilocus enzyme...
Use of colistin-polymyxin B-cellobiose agar for isolation of Vibrio vulnificus from the environment.
Oliver, J D, Guthrie, K, Preyer, J, Wright, A, Simpson, L M, Siebeling, R, ...
Colistin-polymyxin B-cellobiose agar was employed for the isolation of Vibrio vulnificus from shellfish. Isolates were examined phenotypically and with a gene probe and monoclonal antibody specific...
Wright, A C, Miceli, G A, Landry, W L, Christy, J B, Watkins, W D, Morris, J G
An oligonucleotide DNA probe (VVAP) was constructed from a portion of the Vibrio vulnificus cytolysin gene (hylA) sequence and labeled with alkaline phosphatase covalently linked to the DNA. Control...
Morris, J G, Wright, A C, Roberts, D M, Wood, P K, Simpson, L M, Oliver, J D
We screened 44 lactose-positive Vibrio strains isolated from the marine environment for homology with a 3.2-kilobase DNA fragment encoding the Vibrio vulnificus cytotoxin-hemolysin gene. All 29...
Reddy, G P, Hayat, U, Abeygunawardana, C, Fox, C, Wright, A C, Maneval, D R, ...
Virulence of Vibrio vulnificus has been strongly associated with encapsulation and an opaque colony morphology. Capsular polysaccharide was purified from a whole-cell, phosphate-buffered...
Analysis of clinical and environment Yersinia isolates in the Republic of Georgia.
Sulakvelidze, A, Dalakishvili, K, Barry, E, Wauters, G, Robins-Browne, R, Imnadze, P, ...
The Center for Infectious Diseases Control, Georgian Ministry of Health, isolated 2,493 Yersinia enterocolitica and Y. enterocolitica-like strains, 22 Y. pestis strains, and 21 Y. pseudotuberculosis...
Johnson, J A, Panigrahi, P, Morris, J G
Non-O1 Vibrio cholerae produced two distinct colony types, designated as opaque and translucent. NRT36S, a clinical isolate shown to be virulent in volunteers, produced predominantly opaque colonies,...
Russell, R G, Tall, B D, Morris, J G
A modified removable intestinal tie adult rabbit diarrhea (RITARD) model was used to investigate the intestinal pathology, intestinal bacterial colonization, intestinal fluid volume, and onset of...
The ca. 51-kDa extracellular cytolysin of Vibrio vulnificus has been proposed as a virulence factor. We inactivated the structural gene for cytolysin in fully virulent, clinical V. vulnificus strains...
Soriano, A L, Russell, R G, Johnson, D, Lagos, R, Sechter, I, Morris, J G
Citrobacter diversus is a cause of devastating neonatal meningitis, with illness characterized by formation of multiple brain abscesses. We developed an infant mouse intracranial inoculation model to...
Human immune response to Campylobacter jejuni proteins expressed in vivo.
Panigrahi, P, Losonsky, G, DeTolla, L J, Morris, J G
Campylobacter jejuni 81-176 grown in vivo in rabbit ileal loops expresses novel proteins that are not expressed under standard laboratory culture conditions. A new protein with a molecular mass of...
Phenotypic evaluation of acapsular transposon mutants of Vibrio vulnificus.
Wright, A C, Simpson, L M, Oliver, J D, Morris, J G
Translucent, avirulent spontaneous phase variants of Vibrio vulnificus MO6-24 reverted back to the original opaque, encapsulated phenotype under both in vivo and in vitro conditions. Two translucent,...
Miliotis, M D, Morris, J G, Cianciosi, S, Wright, A C, Wood, P K, Robins-Browne, R M
The virulence plasmid (pYV) of Yersinia enterocolitica is necessary for production of conjunctivitis in guinea pigs and for mouse lethality. To identify the genes responsible for production of...
Yamamoto, K, Wright, A C, Kaper, J B, Morris, J G
A cytolysin of ca. 56 kilodaltons has been suggested as a possible virulence factor in Vibrio vulnificus infections. We sequenced the DNA encoding cytolytic activity and found that the sequence...
Volunteer studies of deletion mutants of Vibrio cholerae O1 prepared by recombinant techniques.
Levine, M M, Kaper, J B, Herrington, D, Losonsky, G, Morris, J G, Clements, M L, ...
Vibrio cholerae O1 A-B- vaccine strain JBK 70 and A-B+ CVD 101 prepared by recombinant DNA techniques from pathogenic EI Tor Inaba N16961 and classical Ogawa 395, respectively, were fed to 38...
Cloning of the cytotoxin-hemolysin gene of Vibrio vulnificus.
Wright, A C, Morris, J G, Maneval, D R, Richardson, K, Kaper, J B
Genes encoding the cytotoxin-hemolysin of Vibrio vulnificus were cloned in Escherichia coli by using the lytic cloning vector, lambda 1059. Subcloning in plasmid pBR325 resulted in the isolation of a...
Johnson, J A, Morris, J G, Kaper, J B
Of 167 Vibrio cholerae isolates screened for sequences homologous with zonula occludens toxin (zot) or cholera toxin (ctx) genes, 3.0% of non-O1, 100.0% of clinical O1, and 0.0% of environmental O1...
Morris, J G, Dwyer, D M, Hoge, C W, Stubbs, A D, Tilghman, D, Groves, C, ...
We examined isolates from 203 sporadic and outbreak-associated Salmonella enteritidis cases occurring in Maryland between 1985 and 1990. Plasmid profiles were determined for all isolates; 52 isolates...
Wright, A C, Guo, Y, Johnson, J A, Nataro, J P, Morris, J G
An alkaline phosphatase-labeled oligonucleotide DNA probe (CTAP) that was specific for the cholera toxin gene (ctxA) was identified. All cholera toxin-producing strains of Vibrio cholerae, regardless...
Robins-Browne, R M, Miliotis, M D, Cianciosi, S, Miller, V L, Falkow, S, Morris, J G
The virulence of yersiniae varies according to (i) species and biotype and (ii) possession of a 67- to 72-kilobase virulence plasmid. Y. pestis, Y. pseudotuberculosis, and biotypes 1B, 2, 3, 4, and 5...
Miliotis, M D, Galen, J E, Kaper, J B, Morris, J G
A 24-base oligonucleotide probe specific for a region of the Yersinia enterocolitica virulence plasmid (pYV) associated with HEp-2 cell cytotoxicity and the Sereny reaction was constructed by using...
Hoge, C W, Sethabutr, O, Bodhidatta, L, Echeverria, P, Robertson, D C, Morris, J G
A synthetic oligonucleotide probe was developed to identify the gene for the heat-stable enterotoxin (NAG-ST) of non-serovar O1 Vibrio cholerae. Of 103 non-O1 V. cholerae isolates from Thailand, 31...
Lin, F Y, Morris, J G, Kaper, J B, Gross, T, Michalski, J, Morrison, C, ...
A case of cholera was identified in Baltimore County, Md., in October 1984. The Vibrio cholerae O1 isolate from the patient was hemolytic, biotype El Tor, serotype Inaba, and was toxigenic by the Y-1...
Wood, P K, Morris, J G, Small, P L, Sethabutr, O, Toledo, M R, Trabulsi, L, ...
Forty-two Shigella and 29 Escherichia coli strains were screened for invasiveness in the Sereny test and for hybridization with two recently described DNA probes for the invasiveness plasmid. Both...
Association between specific plasmids and relapse in typhoid fever.
Gotuzzo, E, Morris, J G, Benavente, L, Wood, P K, Levine, O, Black, R E, ...
We studied isolates from 73 patients hospitalized with typhoid fever in Lima, Peru. Of these 73 patients, 11 (15%) suffered a clinical relapse, with fever and positive blood cultures, within 3 months...
DNA probes for identification of enteroinvasive Escherichia coli.
Gomes, T A, Toledo, M R, Trabulsi, L R, Wood, P K, Morris, J G
Eighty-one Escherichia coli strains belonging to all known invasive O serogroups were tested with two distinct invasiveness probes (pMR17 and pSF55). All 54 Sereny test-positive strains and 5 strains...
Seropositivity to Helicobacter pylori: lack of association with length of hospitalization.
Thoene, J G, Burken, M I, Hopkins, R J, Russell, R G, Morris, J G
To examine the possibility of nosocomial spread of Helicobacter pylori, a serosurvey (n = 238) was conducted at Perry Point Department of Veterans Affairs Medical Center, an institution providing...
Morris, J G, Prado, V, Ferreccio, C, Robins-Browne, R M, Bordun, A M, Cayazzo, M, ...
Yersinia enterocolitica was isolated from children in two cohorts in Santiago, Chile. In a cohort containing a cross section of children aged 0 to 4 years, Y. enterocolitica was isolated from stool...
Morris, J G, Picardi, J L, Lieb, S, Lee, J V, Roberts, A, Hood, M, ...
A nontoxigenic strain of Vibrio cholerae O group 1 was isolated in Florida from the stool of a patient with severe diarrhea. The strain had the same hemolytic and unique phage-sensitivity pattern as...
Experimental non-O group 1 Vibrio cholerae gastroenteritis in humans.
Morris, J G, Takeda, T, Tall, B D, Losonsky, G A, Bhattacharya, S K, Forrest, B D, ...
In this study, 27 volunteers received one of three non-O group 1 Vibrio cholerae strains in doses as high as 10(9) CFU. Only one strain (strain C) caused diarrhea: this strain was able to colonize...
Development of an in vitro model for study of non-O1 Vibrio cholerae virulence using Caco-2 cells.
Panigrahi, P, Tall, B D, Russell, R G, Detolla, L J, Morris, J G
Non-O1 Vibrio cholerae strains have been reported as a causative agent of diarrhea throughout the world. We recently reported that non-O1 V. cholerae strains cause diarrhea in human volunteers. In...
Levine, M M, Herrington, D, Murphy, J R, Morris, J G, Losonsky, G, Tall, B, ...
Two Salmonella typhi mutants, 541Ty (Vi+) and 543Ty (Vi-), auxotrophic for p-aminobenzoate and adenine, were evaluated as live oral vaccines. 33 volunteers ingested single doses of 10(8), 10(9), or...
Purification of Two Clostridium Bacteriocins by Procedures Appropriate to Hydrophobic Proteins
Clarke, D. J., Robson, R. Moyra, Morris, J. G.
Two clostridocins distinguishable by their different modes of action on Clostridium pasteurianum have been isolated, namely, butyricin 7423 found in cultures of Clostridium butyricum NCIB 7423 and...
The membrane adenosine triphosphatase complex of vegetatively growing Clostridium pasteurianum, solublized with Triton X-100, has been recovered as a significantly purified particulate preparation...
The effect of protein content of the diet on the rate of urea formation in sheep liver
1. In the livers of six sheep given a high-protein diet, the concentrations of certain urea-cycle enzymes [ornithine transcarbamoylase, arginine synthetase (combined activity of argininosuccinate...
1. A species of Arthrobacter (designated Arthrobacter 9759) was isolated from soil by its ability to grow aerobically on l-threonine as sole source of carbon atoms, nitrogen atoms and energy; the...
The utilization of glycollate by Micrococcus denitrificans: the β-hydroxyaspartate pathway
Kornberg, H. L., Morris, J. G.
1. Micrococcus denitrificans utilized glycollate as sole carbon source for aerobic growth. Glyoxylate was utilized less well, and though glycine alone did not support growth it enhanced growth on...
Moe, C L, Turf, E, Oldach, D, Bell, P, Hutton, S, Savitz, D, ...
A variety of human symptoms have been associated with exposure to the dinoflagellate Pfiesteria and have been grouped together into a syndrome termed "possible estuary-associated syndrome."...
Human health effects and Pfiesteria exposure: a synthesis of available clinical data.
An association between human illness and exposure to Pfiesteria was first observed among laboratory personnel working with the microorganism. In 1997, in the setting of Pfiesteria activity on the...
Purification and properties of erythro-β-hydroxyasparate dehydratase from Micrococcus denitrificans
1. The novel enzyme, erythro-β-hydroxyaspartate dehydratase, a key enzyme of the β-hydroxyaspartate pathway (Kornberg & Morris, 1963, 1965), has been purified 30-fold from extracts of...
Regeneration of protoplasts of Clostridium pasteurianum ATCC 6013.
A procedure has been developed for the regeneration of Clostridium pasteurianum protoplasts with frequencies of up to 10% reversion being obtained.