Publications by authors named "Bowden T"

Atlantic halibut (Hippoglossus hippoglossus L.) is a potentially important new species to cold-water aquaculture. Development of a viable industrial farming technique has been hampered by continued pathogen problems within the rearing cycle and there are several reports that indicated how susceptible juvenile halibut are to bacterial and viral diseases.

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Objective: Previously we have shown that a malignant mouse keratinocyte cell line, 10Gy5, has elevated AP-1 transactivation and reduced JunB protein levels compared to its parental benign cell line, 308, and that the tumorigenicity in the 10Gy5 cells could be blocked by a dominant negative c-Jun mutant protein. We wished to determine whether the change in JunB protein levels could account for the elevated AP-1 activity and whether re-expression of JunB in malignant 10Gy5 cells altered their proliferative capacity.

Design: In the current study, we reduced JunB expression in benign 308 cells with antisense oligonucleotides and increased JunB expression in malignant 10Gy5 cells by stable transfection of a JunB expression vector.

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This study examined the direct and mediated impact of a self-administered, computer-based intervention on nutrition behavior self-efficacy, and outcome expectations among supermarket food shoppers. The intervention, housed in kiosks in supermarkets and based on social cognitive theory, used tailored information and self-regulation strategies delivered in 15 brief weekly segments. The study sample (N = 277), stratified and randomly assigned to treatment or control, was 96% female, was 92% White, had a median annual income of about $35,000, and had a mean education of 14.

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Menangle virus (MenV), isolated in August 1997 following an outbreak of reproductive disease in a piggery in New South Wales, is the second previously unclassified member of the family Paramyxoviridae to be identified in Australia since 1994. Similar to Hendra virus (HeV), MenV appears to be a virus of fruit bats (flying foxes) in the genus Pteropus. No serological cross-reactivity was detected between MenV and other known paramyxoviruses and to facilitate virus classification a cDNA subtraction method was used to obtain viral-specific cDNA from MenV-infected cells.

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Experimental bath challenge of juvenile and sub-adult Atlantic halibut with Vibrio anguillarum induced severe mortalities of 47 and 80%, respectively. However, animals vaccinated with a commercial V. anguillarum vaccine demonstrated excellent protection against the disease (100% RPS).

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Aeromonas salmonicida subsp. salmonicida expresses a single cytoplasmically located catalase which was found to be inducible by exposure to 20 microM hydrogen peroxide in mid-exponential phase resulting in a 4 fold increase in activity. Subsequent exposure to 2 mM peroxide in late-exponential/early-stationary phase resulted in further induction of catalase activity which increased to 20 fold higher levels than those found in uninduced cultures.

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The importance of the two major extracellular enzymes of Aeromonas salmonicida, glycerophospholipid: cholesterol acyltransferase (GCAT) and a serine protease (AspA), to the pathology and mortality of salmonid fish with furunculosis had been indicated in toxicity studies. In this study, the genes encoding GCAT (satA) and AspA (aspA) have been cloned and mutagenized by marker replacement of internal deletions, and the constructs have been used for the creation of isogenic satA and aspA mutants of A. salmonicida.

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Using specific immunostaining of Western blots, the in vivo expression of several putative virulence factors of Aeromonas salmonicida subsp. salmonicida was demonstrated in infected muscle tissue of Atlantic salmon and rainbow trout. Three virulent isolates of A.

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Sheep gamma delta T cells have been shown serologically to express T19, a membrane protein of 180-200 kDa which is a member of the scavenger receptor superfamily. Previous work from this laboratory resulted in the detection of a multigene family of T19-like genes in the sheep genome. In this study nucleotide sequences from several T19 genes were determined and are reported along with the corresponding segments of a number of expressed mRNA molecules.

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The genome of the avian pathogen Mycoplasma gallisepticum contains a number of related genes for putative adhesion molecules (pMGA). Cloning and sequence analysis of several pMGA genes suggested that all of them might be transcriptionally and translationally functional. Analysis of the gene sequence encoding the sole pMGA variant expressed in vitro in the S6 strain (pMGA1.

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Total parenteral nutrition (TPN) for the nonoperative treatment of acute pancreatic pseudocyst has been of hypothetical benefit. We reviewed pseudocyst hospital admissions in 40 patients treated with TPN who had serial imaging studies. The mean cyst size was 7.

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The individual anaerobic threshold (IAT) has received attention recently in the field of exercise physiology. The IAT is defined as the point during progressive exercise when lactate elimination from the blood is both maximal and equal to the diffusion from the working muscles. It has been theorized that an individual can maintain exercise for relatively long periods when working at the IAT.

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Buprenorphine is an opioid agonist-antagonist that has emerged as an option for postoperative analgesia. We compared the postoperative hospital course of patients undergoing open cholecystectomy who received buprenorphine hydrochloride with those who received morphine sulfate. Patients in both groups administered the analgesic using a patient-controlled analgesia infusion device.

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493 African-American children between the ages of three and four years were examined for evaluation of molar occlusion with frequency of anterior and posterior crossbite, fractured and/or darkened teeth from trauma and dental anomalies in the primary dentition. Overall results from both age groups revealed 90% had a mesial step, 8% a flush and 2% a distal step molar occlusion. Crossbite, either anterior or posterior, occurred in 12% of all children examined.

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Percutaneous endoscopic gastrostomy (PEG) is clearly better than operative gastrostomy performed under general anesthesia. Whether or not PEG offers any significant advantage over operative gastrostomy performed using local anesthesia remains to be proved. Operative gastrotomy performed with local anesthesia seems comparable to nonoperative techniques.

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In 3 experiments, children's ability to vary their responses on perspective-taking tasks as a function of the other person's age was examined. In Experiment 1,4- and 5-year-olds were shown to be accurate in their judgments about the knowledge of a 6-month-old baby, a 4-year-old child, and an adult. In Experiment 2, 4-year-olds were asked to determine if a baby, child, and adult would be able to identify an object from a restricted view showing either an identifiable part, a small nondescript part, or no part of the object.

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