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Chen L, Dombrowsky E, Boyle B, Tang C, Thanneer N. PmWebSpec: An Application to Create and Manage CDISC-Compliant Pharmacometric Analysis Dataset Specifications. AAPS J 2024; 26:39. [PMID: 38570385 DOI: 10.1208/s12248-024-00910-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Accepted: 03/15/2024] [Indexed: 04/05/2024] Open
Abstract
A well-documented pharmacometric (PMx) analysis dataset specification ensures consistency in derivations of the variables, naming conventions, traceability to the source data, and reproducibility of the analysis dataset. Lack of standards in creating the dataset specification can lead to poor quality analysis datasets, negatively impacting the quality of the PMx analysis. Standardization of the dataset specification within an individual organization helps address some of these inconsistencies. The recent introduction of the Clinical Data Interchange Standards Consortium (CDISC) Analysis Data Model (ADaM) Population Pharmacokinetic (popPK) Implementation Guide (IG) further promotes industry-wide standards by providing guidelines for the basic data structure of popPK analysis datasets. However, manual implementation of the standards can be labor intensive and error-prone. Hence, there is still a need to automate the implementation of these standards. In this paper, we present PmWebSpec, an easily deployable web-based application to facilitate the creation and management of CDISC-compliant PMx analysis dataset specifications. We describe the application of this tool through examples and highlight its key features including pre-populated dataset specifications, built-in checks to enforce standards, and generation of an electronic Common Technical Document (eCTD)-compliant data definition file. The application increases efficiency, quality and semi-automates PMx analysis dataset, and specification creation and has been well accepted by pharmacometricians and programmers internally. The success of this application suggests its potential for broader usage across the PMx community.
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Affiliation(s)
- Lu Chen
- Bristol Myers Squibb, PO Box 4000, Princeton, New Jersey, 08543-4000, USA
| | - Erin Dombrowsky
- Bristol Myers Squibb, PO Box 4000, Princeton, New Jersey, 08543-4000, USA
| | - Baylea Boyle
- Bristol Myers Squibb, PO Box 4000, Princeton, New Jersey, 08543-4000, USA
| | - Chengke Tang
- Bristol Myers Squibb, PO Box 4000, Princeton, New Jersey, 08543-4000, USA
| | - Neelima Thanneer
- Bristol Myers Squibb, PO Box 4000, Princeton, New Jersey, 08543-4000, USA.
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Creedon M, O'Gorman C, McDonnell C, McNamara E, Boyle B. Fournier's Gangrene Associated with SGLT-2 Inhibitor Use. Ir Med J 2022; 115:701. [PMID: 36920488] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 03/16/2023]
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Girgis G, McBride H, Boyle B, Araba M, Bodle B, Lohrmann T. Effects of a synbiotic combination of Bacillus subtilis and yeast cell wall-derived glucomannan on cecal colonization of Salmonella Enteritidis in layer chickens. J APPL POULTRY RES 2022. [DOI: 10.1016/j.japr.2022.100240] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Van Der Schee M, Dickson J, Ruparel M, Janes S, Dragonieri S, Fuller L, Grundy S, Baldwin D, Crosbie P, Prasad A, Haris M, Barlow A, Calvert L, Wight A, Bennett J, Gaga M, Chee S, Conteh V, Ledson M, Hodkinson C, Boschmans J, Smith R, Parris R, Apthorp D, Kitchen S, Allsworth M, Boyle B, Rintoul R. P3.05-001 Breath Analysis for Early Detection of Lung Cancer: The LuCID Study. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.1672] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Dupuis J, Brunet B, Bird H, Lumley L, Fagua G, Boyle B, Levesque R, Cusson M, Powell J, Sperling F. Genome-wide SNPs resolve phylogenetic relationships in the North American spruce budworm (Choristoneura fumiferana) species complex. Mol Phylogenet Evol 2017; 111:158-168. [DOI: 10.1016/j.ympev.2017.04.001] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2016] [Revised: 02/27/2017] [Accepted: 04/03/2017] [Indexed: 01/02/2023]
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Engemann K, Sandel B, Boyle B, Enquist BJ, Jørgensen PM, Kattge J, McGill BJ, Morueta-Holme N, Peet RK, Spencer NJ, Violle C, Wiser SK, Svenning JC. A plant growth form dataset for the New World. Ecology 2016; 97:3243. [DOI: 10.1002/ecy.1569] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/26/2016] [Revised: 06/23/2016] [Accepted: 07/05/2016] [Indexed: 11/10/2022]
Affiliation(s)
- K. Engemann
- Section for Ecoinformatics & Biodiversity; Department of Bioscience; Aarhus University; Ny Munkegade 114 Aarhus C DK-8000 Denmark
| | - B. Sandel
- Section for Ecoinformatics & Biodiversity; Department of Bioscience; Aarhus University; Ny Munkegade 114 Aarhus C DK-8000 Denmark
| | - B. Boyle
- Department of Ecology & Evolutionary Biology; University of Arizona; Biosciences West 310 Tuscon Arizona 85721 USA
| | - B. J. Enquist
- Department of Ecology & Evolutionary Biology; University of Arizona; Biosciences West 310 Tuscon Arizona 85721 USA
| | - P. M. Jørgensen
- Missouri Botanical Garden; P.O. Box 299 St. Louis Missouri 63166 USA
| | - J. Kattge
- Max Planck Institute for Biogeochemistry; Jena 07745 Germany
- German Centre for Integrative Biodiversity Research Halle-Jena-Leipzig; Leipzig 04103 Germany
| | - B. J. McGill
- School of Biology & Ecology and Mitchell Center for Sustainability Solutions; University of Maine; Orono Maine 04473 USA
| | - N. Morueta-Holme
- Department of Integrative Biology; University of California - Berkeley; 3040 VLSB Berkeley California 94720 USA
| | - R. K. Peet
- Department of Biology; University of North Carolina; Chapel Hill North Carolina 27599 USA
| | - N. J. Spencer
- Landcare Research; PO Box 69040 Lincoln 7640 New Zealand
| | - C. Violle
- CEFE UMR 5175; CNRS - Université de Montpellier - Université Paul-Valéry Montpellier - EPHE; 1919 route de Mende Montpellier CEDEX 5 F-34293 France
| | - S. K. Wiser
- Landcare Research; PO Box 69040 Lincoln 7640 New Zealand
| | - J.-C. Svenning
- Section for Ecoinformatics & Biodiversity; Department of Bioscience; Aarhus University; Ny Munkegade 114 Aarhus C DK-8000 Denmark
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Ryan L, O'Mahony E, Wrenn C, FitzGerald S, Fox U, Boyle B, Schaffer K, Werner G, Klare I. Epidemiology and molecular typing of VRE bloodstream isolates in an Irish tertiary care hospital. J Antimicrob Chemother 2015; 70:2718-24. [PMID: 26142479 DOI: 10.1093/jac/dkv185] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/14/2014] [Accepted: 06/10/2015] [Indexed: 01/13/2023] Open
Abstract
OBJECTIVES Ireland has the highest rate of vancomycin-resistant Enterococcus faecium (VREfm) isolated from blood of nosocomial patients in Europe, which rose from 33% (110/330) in 2007 to 45% (178/392) in 2012. No other European country had a VREfm rate from blood cultures of >25%. Our aim was to elucidate the reasons for this significantly higher rate in Ireland. METHODS The epidemiology and molecular typing of VRE from bloodstream infections (BSIs) was examined in a tertiary care referral hospital and isolates were compared with those from other tertiary care referral centres in the region. RESULTS The most common source of VRE BSIs was intra-abdominal sepsis, followed by line-related infection and febrile neutropenia. Most of the isolates were positive for vanA; 52% (43/83) possessed the esp gene and 12% (10/83) possessed the hyl gene. Genotyping by SmaI macrorestriction analysis (PFGE) of isolates revealed clonal relatedness between bloodstream isolates and environmental isolates. VRE BSI isolates from two other tertiary care hospitals in the Dublin region showed relatedness by PFGE analysis. MLST revealed four STs (ST17, ST18, ST78 and ST203), all belonging to the clonal complex of hospital-associated strains. CONCLUSIONS Irish VRE BSI isolates have virulence factor profiles as previously reported from Europe. Typing analysis shows the spread of individual clones within the hospital and between regional tertiary care hospitals. Apart from transmission of VRE within the hospital and transfer of colonized patients between Irish hospitals, no other explanation for the persistently high VREfm BSI rate in Ireland has been found.
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Affiliation(s)
- L Ryan
- Department of Clinical Microbiology, St Vincent's University Hospital, Elm Park, Dublin 4, Ireland
| | - E O'Mahony
- Department of Clinical Microbiology, St Vincent's University Hospital, Elm Park, Dublin 4, Ireland
| | - C Wrenn
- Department of Clinical Microbiology, St Vincent's University Hospital, Elm Park, Dublin 4, Ireland
| | - S FitzGerald
- Department of Clinical Microbiology, St Vincent's University Hospital, Elm Park, Dublin 4, Ireland
| | - U Fox
- Department of Clinical Microbiology, Mater Misericordiae University Hospital, Eccles Street, Dublin 7, Ireland
| | - B Boyle
- Department of Clinical Microbiology, St James's Hospital, Dublin 8, Ireland
| | - K Schaffer
- Department of Clinical Microbiology, St Vincent's University Hospital, Elm Park, Dublin 4, Ireland
| | - G Werner
- German National Reference Centre for Staphylococci and Enterococci, Robert Koch Institute, Wernigerode Branch, Wernigerode, Germany
| | - I Klare
- German National Reference Centre for Staphylococci and Enterococci, Robert Koch Institute, Wernigerode Branch, Wernigerode, Germany
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Mac Aogáin M, Moloney G, Kilkenny S, Kelleher M, Kelleghan M, Boyle B, Rogers TR. Whole-genome sequencing improves discrimination of relapse from reinfection and identifies transmission events among patients with recurrent Clostridium difficile infections. J Hosp Infect 2015; 90:108-16. [PMID: 25935700 DOI: 10.1016/j.jhin.2015.01.021] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2014] [Accepted: 01/19/2015] [Indexed: 10/23/2022]
Abstract
BACKGROUND Recurrent Clostridium difficile infection (CDI) represents a significant healthcare challenge. Patients may suffer multiple episodes of CDI with the index strain (relapse) or become infected by another strain acquired nosocomially (reinfection). AIM We aimed to characterize C. difficile isolates causing recurrent CDI at a tertiary referral hospital by whole-genome sequencing (WGS) to assess strain similarities at the highest level of genetic resolution and accurately detect relapse, reinfection, and putative strain transmission events. METHODS An 18-month prospective study of recurrent CDI was undertaken. Clostridium difficile was cultured from stool samples collected longitudinally from any patients suffering ≥2 clinically defined CDI episodes. Patient demographics and clinical data were recorded, and strain relatedness investigated by both polymerase chain reaction (PCR)-based ribotyping and WGS. FINDINGS Nineteen patients were identified with ≥2 clinically defined CDI episodes who cumulatively suffered 39 recurring CDI episodes (58 total episodes). Patients had a median length of stay (LOS) of 144 days and experienced between two and seven CDI episodes. Ribotyping indicated 27 apparent same-strain relapses, five reinfections and the predominance of ribotypes 078 (ST-11) and 020 (ST-2). WGS allowed characterization of relapse with increased certainty and identified emergent within-strain single nucleotide variants (SNVs) with potential functional impact on diverse genes. Shared ribotypes among 14 patients with recurrent CDI suggested 10 possible patient-to-patient transmission events. However, WGS revealed greater diversity at the sub-ribotype level, excluding all but four transmission events. CONCLUSION WGS exhibits several advantages over PCR-based ribotyping in terms of its ability to distinguish relapse from reinfection, to identify patient-to-patient transmission events, and to exact fine structure characterization of recurrent CDI epidemiology. This offers the potential for more focused infection prevention strategies to eliminate strain transmission among patients with recurrent CDI.
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Affiliation(s)
- M Mac Aogáin
- Department of Clinical Microbiology, Sir Patrick Dun Translational Research Laboratory, School of Medicine, Trinity College Dublin, St James's Hospital, Dublin, Ireland.
| | - G Moloney
- Department of Clinical Microbiology, Sir Patrick Dun Translational Research Laboratory, School of Medicine, Trinity College Dublin, St James's Hospital, Dublin, Ireland
| | - S Kilkenny
- Department of Clinical Microbiology, Sir Patrick Dun Translational Research Laboratory, School of Medicine, Trinity College Dublin, St James's Hospital, Dublin, Ireland
| | - M Kelleher
- Department of Microbiology, St James's Hospital, Dublin, Ireland
| | - M Kelleghan
- Department of Microbiology, St James's Hospital, Dublin, Ireland
| | - B Boyle
- Department of Microbiology, St James's Hospital, Dublin, Ireland
| | - T R Rogers
- Department of Clinical Microbiology, Sir Patrick Dun Translational Research Laboratory, School of Medicine, Trinity College Dublin, St James's Hospital, Dublin, Ireland; Department of Microbiology, St James's Hospital, Dublin, Ireland
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Abstract
There is an ever increasing need to develop new tools to aid in the diagnosis and monitoring of human diseases.
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Affiliation(s)
| | - M. P. van. der Schee
- Dept. of Pulmonary Medicine
- Academic Medical Centre
- University of Amsterdam
- The Netherlands
| | | | - B. Boyle
- Owlstone Ltd
- 127 Cambridge Science ParkMilton Road
- UK
| | - R. S. Savage
- Systems Biology Centre
- University of Warwick
- Coventry
- UK
- Warwick Medical School
| | - R. P. Arasaradnam
- Clinical Sciences Research Institute
- University Hospital Coventry & Warwick/University of Warwick CV2 2DX
- UK
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Koh S, Courtin A, Boyce R, Boyle B, Richards F, Jodrell D. 32 Replication stress is a determinant of synergy between gemcitabine and Chk1 inhibition. Eur J Cancer 2014. [DOI: 10.1016/s0959-8049(14)70158-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Boyle B, Morris JK, McConkey R, Garne E, Loane M, Addor MC, Gatt M, Haeusler M, Latos-Bielenska A, Lelong N, McDonnell R, Mullaney C, O'Mahony M, Dolk H. Prevalence and risk of Down syndrome in monozygotic and dizygotic multiple pregnancies in Europe: implications for prenatal screening. BJOG 2014; 121:809-19; discussion 820. [PMID: 24495335 PMCID: PMC4234000 DOI: 10.1111/1471-0528.12574] [Citation(s) in RCA: 52] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/13/2013] [Indexed: 11/27/2022]
Abstract
OBJECTIVE To determine risk of Down syndrome (DS) in multiple relative to singleton pregnancies, and compare prenatal diagnosis rates and pregnancy outcome. DESIGN Population-based prevalence study based on EUROCAT congenital anomaly registries. SETTING Eight European countries. POPULATION 14.8 million births 1990-2009; 2.89% multiple births. METHODS DS cases included livebirths, fetal deaths from 20 weeks, and terminations of pregnancy for fetal anomaly (TOPFA). Zygosity is inferred from like/unlike sex for birth denominators, and from concordance for DS cases. MAIN OUTCOME MEASURES Relative risk (RR) of DS per fetus/baby from multiple versus singleton pregnancies and per pregnancy in monozygotic/dizygotic versus singleton pregnancies. Proportion of prenatally diagnosed and pregnancy outcome. STATISTICAL ANALYSIS Poisson and logistic regression stratified for maternal age, country and time. RESULTS Overall, the adjusted (adj) RR of DS for fetus/babies from multiple versus singleton pregnancies was 0.58 (95% CI 0.53-0.62), similar for all maternal ages except for mothers over 44, for whom it was considerably lower. In 8.7% of twin pairs affected by DS, both co-twins were diagnosed with the condition. The adjRR of DS for monozygotic versus singleton pregnancies was 0.34 (95% CI 0.25-0.44) and for dizygotic versus singleton pregnancies 1.34 (95% CI 1.23-1.46). DS fetuses from multiple births were less likely to be prenatally diagnosed than singletons (adjOR 0.62 [95% CI 0.50-0.78]) and following diagnosis less likely to be TOPFA (adjOR 0.40 [95% CI 0.27-0.59]). CONCLUSIONS The risk of DS per fetus/baby is lower in multiple than singleton pregnancies. These estimates can be used for genetic counselling and prenatal screening.
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Affiliation(s)
- B Boyle
- EUROCAT Central Registry, Centre for Maternal Fetal and Infant Research, Institute for Nursing and Health Research, University of Ulster, Newtownabbey, UK
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Ryan C, McHugh B, Boyle B, McGovern E, Bérubé M, Lopez-Suárez P, Elfes CT, Boyd DT, Ylitalo GM, Van Blaricom GR, Clapham PJ, Robbins J, Palsbøll PJ, O’Connor I, Berrow SD. Levels of persistent organic pollutants in eastern North Atlantic humpback whales. ENDANGER SPECIES RES 2013. [DOI: 10.3354/esr00545] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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Boyle B, McConkey R, Garne E, Loane M, Addor MC, Bakker MK, Boyd PA, Gatt M, Greenlees R, Haeusler M, Klungsøyr K, Latos-Bielenska A, Lelong N, McDonnell R, Métneki J, Mullaney C, Nelen V, O'Mahony M, Pierini A, Rankin J, Rissmann A, Tucker D, Wellesley D, Dolk H. Trends in the prevalence, risk and pregnancy outcome of multiple births with congenital anomaly: a registry-based study in 14 European countries 1984-2007. BJOG 2013; 120:707-16. [PMID: 23384325 DOI: 10.1111/1471-0528.12146] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/10/2012] [Indexed: 11/29/2022]
Abstract
OBJECTIVE To assess the public health consequences of the rise in multiple births with respect to congenital anomalies. DESIGN Descriptive epidemiological analysis of data from population-based congenital anomaly registries. SETTING Fourteen European countries. POPULATION A total of 5.4 million births 1984-2007, of which 3% were multiple births. METHODS Cases of congenital anomaly included live births, fetal deaths from 20 weeks of gestation and terminations of pregnancy for fetal anomaly. MAIN OUTCOME MEASURES Prevalence rates per 10,000 births and relative risk of congenital anomaly in multiple versus singleton births (1984-2007); proportion prenatally diagnosed, proportion by pregnancy outcome (2000-07). Proportion of pairs where both co-twins were cases. RESULTS Prevalence of congenital anomalies from multiple births increased from 5.9 (1984-87) to 10.7 per 10,000 births (2004-07). Relative risk of nonchromosomal anomaly in multiple births was 1.35 (95% CI 1.31-1.39), increasing over time, and of chromosomal anomalies was 0.72 (95% CI 0.65-0.80), decreasing over time. In 11.4% of affected twin pairs both babies had congenital anomalies (2000-07). The prenatal diagnosis rate was similar for multiple and singleton pregnancies. Cases from multiple pregnancies were less likely to be terminations of pregnancy for fetal anomaly, odds ratio 0.41 (95% CI 0.35-0.48) and more likely to be stillbirths and neonatal deaths. CONCLUSIONS The increase in babies who are both from a multiple pregnancy and affected by a congenital anomaly has implications for prenatal and postnatal service provision. The contribution of assisted reproductive technologies to the increase in risk needs further research. The deficit of chromosomal anomalies among multiple births has relevance for prenatal risk counselling.
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Affiliation(s)
- B Boyle
- Centre for Maternal Fetal and Infant Research, University of Ulster, Newtownabbey, UK
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Thomas LH, Boyle B, Kallay AA, Wales C, Wilson CC. Structural diversity in layered organic materials through templating co-crystallisation. Acta Crystallogr A 2011. [DOI: 10.1107/s0108767311090866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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Boyle B, Levée V, Hamel LP, Nicole MC, Séguin A. Molecular and histochemical characterisation of two distinct poplar Melampsora leaf rust pathosystems. Plant Biol (Stuttg) 2010; 12:364-376. [PMID: 20398242 DOI: 10.1111/j.1438-8677.2009.00310.x] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
In this study, we compared interactions of two Melampsora foliar rust species with poplar, which resulted in either limited or abundant pathogen proliferation. In the pathosystem exhibiting limited pathogen growth, a defence response was observed after invasion of poplar leaf tissues by the biotroph, with late and clear production of reactive oxygen species (ROS) and other products. Characterisation of the histological, biochemical and transcriptional events occurring in both pathosystems showed striking similarity with components of plant defence reactions observed during qualitative resistance. Key components associated with development of an active defence response, such as up-regulation of pathogenesis-related (PR) genes, were observed during infection. Moreover, the time course and strength of gene induction appear to be critical determinants for the outcome of the tree-pathogen interaction. This work provides basic biochemical characterisation and expression data for the study of so-called partial resistance in the poplar-rust pathosystem, which is also applicable to other plant-pathogen interactions resulting in quantitative disease resistance.
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Affiliation(s)
- B Boyle
- Natural Resources Canada, Canadian Forest Service, Laurentian Forestry Centre, Quebec City, QC, Canada
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Drew RJ, Boyle B. RUWA scoring system: a novel predictive tool for the identification of patients at high risk for complications from Clostridium difficile infection. J Hosp Infect 2008; 71:93-4; author reply 94-5. [PMID: 19041159 DOI: 10.1016/j.jhin.2008.09.020] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2008] [Accepted: 09/24/2008] [Indexed: 11/26/2022]
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Ogun SA, Ojini F, Okubadejo N, Danesi M, Kolapo K, Osalusi B, Boyle B. Pattern And Outcome Of Neurological Manifestations Of Hiv/Aids - A Review Of 154 Cases In A Nigerian University Teaching Hospital - A Preliminary Report. African Journal of Neurological Sciences 2008. [DOI: 10.4314/ajns.v24i1.7565] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Boyle B, Korányi K, Patocs A, Liko I, Szappanos A, Bertalan R, Racz K, Balazs C. Polymorphisms of the glucocorticoid receptor gene in Graves ophthalmopathy. Br J Ophthalmol 2008; 92:131-4. [PMID: 18156379 DOI: 10.1136/bjo.2007.126789] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND/AIMS Glucocorticoids have an important role in the regulation of the immune system, and alterations in glucocorticoid signaling may have an impact on the pathophysiology of autoimmune and inflammatory disorders. Because polymorphisms of the glucocorticoid receptor (GR) gene, including the N363S, ER22/23EK, A3669G and BclI variants were found to influence glucocorticoid signalling, we examined whether these polymorphisms could be associated with the development or clinical manifestations of Graves ophthalmopathy (GO). METHODS The carrier and allelic frequencies of the N363S, ER22/23EK, A3669G, and BclI polymorphisms of the GR were determined in 95 Hungarian outpatients with GO and 160 healthy controls. RESULTS No significant changes were found in carrier frequencies of the four polymorphisms between GO patients and healthy controls. However, when GO patients were divided into two subgroups (American Thyroid Association Committee, ATA I-II vs ATA III or greater), the frequency of the polymorphic BclI allele was significantly higher in patients with ATA I-II compared with those with ATA III or more (p = 0.009). CONCLUSION The significant association between the frequency of the polymorphic BclI allele and ATA stage distribution suggests that this polymorphism of the GR gene may affect clinical manifestations of GO, presumably due to an increased signaling of endogenous glucocorticoids.
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Affiliation(s)
- B Boyle
- Second Department of Medicine, Faculty of Medicine, Semmelweis University, Budapest, Hungary.
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Cai Z, Chen HT, Boyle B, Rupp F, Funk WD, Dedera DA. Identification of a novel insulin-like growth factor binding protein gene homologue with tumor suppressor like properties. Biochem Biophys Res Commun 2005; 331:261-6. [PMID: 15845387 DOI: 10.1016/j.bbrc.2005.03.163] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2005] [Indexed: 10/25/2022]
Abstract
Here we report the identification of a new insulin-like growth factor binding protein homologue, provisionally designated insulin-like growth factor binding related protein-4 (IGFBP-rP4). IGFBP-rP4 was found to be most closely related to IGFBP-7 with 52% amino acid homology and 43% amino acid identity, and shares a similar domain structure. Semi-quantitative RT-PCR expression analysis demonstrated a pattern of downregulation of this gene in multiple tumor samples including lung and colon cancer, compared to matched adjacent normal tissue. Western blotting revealed a protein of approximately 38kDa expressed in both the cell pellet and secreted into the supernatant of transiently transfected Cos-7 cells. Cos-7 supernatants containing IGFBP-RP4 protein were observed to suppress the growth of HeLa cells in culture compared to vector controls. IGFBP-RP4 directly transiently transfected into HeLa cells also further confirmed the growth suppressive properties of this protein. Together these data suggest that IGFBP-RP4 may be a novel putative tumor suppressor protein.
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Affiliation(s)
- Z Cai
- Nuvelo, Inc., 675 Almanor Ave., Sunnyvale, CA 94085, USA
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Abstract
The potato pathogenesis-related gene PR-10a is transcriptionally activated in response to pathogen infection or elicitor treatment. Characterization of the cis-acting elements of the PR-10a promoter revealed the presence of a silencing element between residues -52 and -27 that contributes to transcriptional regulation. In this study, we have isolated a silencing element binding factor (SEBF) from potato tuber nuclei that binds to the coding strand of the silencing element in a sequence-specific manner. The consensus binding site of SEBF, PyTGTCNC, is present in a number of PR genes and shows striking similarity to the auxin response element. Mutational analysis of the PR-10a promoter revealed an inverse correlation between the in vitro binding of SEBF and the expression of PR-10a. SEBF was purified to homogeneity from potato tubers, and sequencing of the N terminus of the protein led to the isolation of a cDNA clone. Sequence analysis revealed that SEBF is homologous with chloroplast RNA binding proteins that possess consensus sequence-type RNA binding domains characteristic of heterogeneous nuclear ribonucleoproteins (hnRNPs). Overexpression of SEBF in protoplasts repressed the activity of a PR-10a reporter construct in a silencing element-dependent manner, confirming the role of SEBF as a transcriptional repressor.
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Affiliation(s)
- B Boyle
- Department of Biochemistry, Université de Montréal, Montréal, Québec, Canada H3C 3J7
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Abstract
The potato pathogenesis-related gene PR-10a is transcriptionally activated in response to pathogen infection or elicitor treatment. Characterization of the cis-acting elements of the PR-10a promoter revealed the presence of a silencing element between residues -52 and -27 that contributes to transcriptional regulation. In this study, we have isolated a silencing element binding factor (SEBF) from potato tuber nuclei that binds to the coding strand of the silencing element in a sequence-specific manner. The consensus binding site of SEBF, PyTGTCNC, is present in a number of PR genes and shows striking similarity to the auxin response element. Mutational analysis of the PR-10a promoter revealed an inverse correlation between the in vitro binding of SEBF and the expression of PR-10a. SEBF was purified to homogeneity from potato tubers, and sequencing of the N terminus of the protein led to the isolation of a cDNA clone. Sequence analysis revealed that SEBF is homologous with chloroplast RNA binding proteins that possess consensus sequence-type RNA binding domains characteristic of heterogeneous nuclear ribonucleoproteins (hnRNPs). Overexpression of SEBF in protoplasts repressed the activity of a PR-10a reporter construct in a silencing element-dependent manner, confirming the role of SEBF as a transcriptional repressor.
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Affiliation(s)
- B Boyle
- Department of Biochemistry, Université de Montréal, Montréal, Québec, Canada H3C 3J7
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Sabin CA, Olmscheid B, Moyle G, Carr A, Boyle B, Cohen C, Cooper D, Deeks S, Gulick T, Saag M. Selected topics from the 8th Conference on Retroviruses and Opportunistic Infections. February 4-8, 2001. Chicago, Illinois. HIV Clin Trials 2001; 2:366-86. [PMID: 11590541 DOI: 10.1310/fpdy-dk6j-gltv-hc50] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- C A Sabin
- Medical Statistics and Epidemiology, Royal Free and UC Medical School, London, UK
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Affiliation(s)
- Y Audic
- Department of Anatomy and Cell Biology, College of Medicine, University of Iowa, Iowa City, Iowa 52242, USA
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Kendig NE, Boyle B, Swetz A. The Maryland Division of Correction Medical-Parole Program: a four-year experience, 1991 to 1994. AIDS Public Policy J 2000; 11:21-7. [PMID: 10915235] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
Affiliation(s)
- N E Kendig
- Division of Correction, Maryland Department of Public Safety and Correctional Services, Baltimore, USA
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Boyle B. Follow through on your commitment. Natl Med Leg J 2000; 10:8. [PMID: 10889722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/17/2023]
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Goldenberg D, Boyle B. Psychiatry and HIV: Part 2. AIDS Read 2000; 10:201-4. [PMID: 10808595] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/16/2023]
Affiliation(s)
- D Goldenberg
- Center for Special Studies, New York Presbyterian Hospital-Weill Medical College of Cornell University, USA
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Merrick S, Gulick R, Boyle B. The Seventh Conference on Retroviruses and Opportunistic Infections. AIDS Read 2000; 10:135-9. [PMID: 10758009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/14/2023]
Affiliation(s)
- S Merrick
- Weill Medical College of Cornell University, New York, USA
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Zhao XY, Boyle B, Krishnan AV, Navone NM, Peehl DM, Feldman D. Two mutations identified in the androgen receptor of the new human prostate cancer cell line MDA PCa 2a. J Urol 1999; 162:2192-9. [PMID: 10569618 DOI: 10.1016/s0022-5347(05)68158-x] [Citation(s) in RCA: 83] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
PURPOSE We have characterized the androgen receptor (AR) in a new human prostate cancer cell line, MDA PCa 2a, that has recently been established from a bone metastasis of a patient whose cancer exhibited androgen-independent growth. MATERIALS AND METHODS Androgen responsiveness of these cells was assessed by measuring the effect of DHT and R1881 on cell growth and PSA secretion. Scatchard analysis was used to characterize the affinity and abundance of AR protein. Using a PCR based strategy, genomic DNA of the entire coding region of AR gene was sequenced to identify possible mutations. RESULTS These cells express abundant AR (Nmax = 685 +/- 149 fmol./mg. protein), but the AR binding affinity (Kd) for DHT is only 25 nM, approximately 50-fold lower affinity than the mutated AR in LNCaP prostate cancer cells (Kd = 0.5 nM) or the wildtype AR in MCF-7 breast cancer cells (Kd = 0.4 nM). Two mutations, L701H and T877A, were identified in the ligand binding domain of the AR gene. Compared with LNCaP cells, the new cell line is significantly less responsive to DHT and R1881 as well as to other androgens such as testosterone, androstenedione, and DHEA. Similar to LNCaP cells, the ligand specificity of the AR in MDA PCa 2a cells appears to be relaxed and non-androgens such as progesterone and estradiol act as agonists although with less potency than in LNCaP cells. Interestingly, in the absence of androgens, the new cell line expresses 15-fold higher baseline levels of PSA than LNCaP. CONCLUSIONS Two mutations were identified in the AR gene of the MDA PCa 2a cell line that are likely responsible for the decreased androgen sensitivity and altered ligand specificity observed in these cells. Thus, this new cell line with partial androgen responsiveness and PSA expression can serve as a functionally relevant model system of bone metastatic prostate cancer, and can be used to investigate the role of AR mutations in prostate cancer and its progression to androgen independence.
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Affiliation(s)
- X Y Zhao
- Department of Medicine, Stanford University School of Medicine, California, USA
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Haslett PA, Klausner JD, Makonkawkeyoon S, Moreira A, Metatratip P, Boyle B, Kunachiwa W, Maneekarn N, Vongchan P, Corral LG, Elbeik T, Shen Z, Kaplan G. Thalidomide stimulates T cell responses and interleukin 12 production in HIV-infected patients. AIDS Res Hum Retroviruses 1999; 15:1169-79. [PMID: 10480630 DOI: 10.1089/088922299310269] [Citation(s) in RCA: 64] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022] Open
Abstract
We performed a placebo-controlled study to evaluate the effects of immunomodulatory treatment with thalidomide on HIV levels, TNF-alpha levels, and immune status of 31 HIV-infected individuals, after temporary suppression of viral replication with antiretroviral drugs. Treatment with a combination of zidovudine and lamivudine (ZDV/LMV) for 14 days resulted in a median decline in plasma viremia of 1.94 log10 RNA equivalents/ml. After discontinuation of ZDV/LMV, thalidomide therapy (200 mg/day for 4 weeks) did not retard the prompt return of HIV titers to the pretreatment levels, and had no effect on plasma levels of TNF-alpha. In contrast, thalidomide treatment resulted in significant immune stimulation. We observed increased levels of plasma soluble IL-2 receptor, soluble CD8 antigen, and IL-12 (p < 0.01 for all parameters), as well as increased cutaneous delayed-type hypersensitivity reactions to recall antigens (p < 0.01) in thalidomide-treated patients. These changes were associated with a median increase in HIV titer of 0.2 log10 RNA equivalents/ml in the thalidomide-treated group (p < 0.05), which resolved after stopping the drug. Further studies were performed in vitro to elucidate the mechanism of thalidomide-induced immune stimulation. When purified T cells from HIV-infected individuals were stimulated by immobilized anti-CD3 in the presence of thalidomide, a costimulatory effect of the drug was observed, resulting in increased production of IL-2 and IFN-gamma, and increased T cell-proliferative responses. Further experiments showed that thalidomide increased IL-12 production by antigen-presenting cells in a T cell-dependent manner. Our findings suggest a potential application for thalidomide as a novel immune adjuvant in HIV disease.
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Affiliation(s)
- P A Haslett
- The Laboratory of Cellular Physiology and Immunology, The Rockefeller University, New York, New York 10021, USA.
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Abstract
A diagnosis of Q fever endocarditis was made in 7 patients, 6 with predisposing factors and 3 with occupational risk factors. Prompt recognition of Coxiella burnettii endocarditis is required when clinical signs of endocarditis such as fever, anaemia, elevated liver transaminases, congestive cardiac failure are accompanied by negative blood cultures. Serological evidence of elevated antibody titres to Phase I and Phase II antigens of Coxiella burnettii are diagnostic. Prolonged antimicrobial therapy combined with surgery has resulted in the marked reduction of mortality from 50 per cent of 17 per cent when Q fever endocarditis is revisited almost 20 yr later.
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Affiliation(s)
- B Boyle
- Department of Microbiology, Mater Misericordiae Hospital, Dublin 7
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Osmark P, Boyle B, Brisson N. Sequential and structural homology between intracellular pathogenesis-related proteins and a group of latex proteins. Plant Mol Biol 1998; 38:1243-1246. [PMID: 9869429 DOI: 10.1023/a:1006060224012] [Citation(s) in RCA: 48] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
The intracellular pathogenesis-related proteins have been identified in a broad range of flowering plants. Some display quite different patterns of expression, in many cases unrelated to the pathogenic response. Nevertheless, these proteins are all very similar and in most cases share more than 35% sequence identity. In this report we investigate the significance of a rather weak similarity between the intracellular pathogenesis-related (IPR or PR-10) proteins and a group of proteins identified in the latex of opium poppy and in Arabidopsis, among others. A sequence analysis held together with the recently published three-dimensional structure of Bet v 1, an IPR protein from birch pollen, strongly suggests sequential and structural homology between the two protein families.
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Affiliation(s)
- P Osmark
- Department of Biochemistry, Université de Montréal, Canada
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Creech MM, Arnold EV, Boyle B, Muzinich MC, Montville C, Bohle DS, Atherton RW. Sperm motility enhancement by nitric oxide produced by the oocytes of fathead minnows, Pimephelas promelas. J Androl 1998; 19:667-74. [PMID: 9876018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
The effects of nitric oxide (NO) on sperm motility were examined in the fathead minnow, Pimephelas promelas, using computer-assisted sperm analysis (CASA). The observed effects underscore the dual nature of NO as both a low-concentration regulatory agent and, at higher doses, a cytotoxic agent. At 1 x 10(-6) M concentration, NO donor sodium nitroprusside (SNP) enhanced sperm motility percentages and increased CASA velocity parameters curvilinear velocity, straight-line velocity, and average path velocity, whereas 1 x 10(-2) M concentration inhibited percent motility and decreased velocities. Fathead minnow ova-produced NO was subsequently trapped as a paramagnetic ferrous iron complex and detected by electron spin resonance spectroscopy. The distinctive triplet spectrum, with a(N) = 12.5G and g(iso) = 2.04, was recorded during a critical 5-minute period following laying. Nitric oxide synthase (NOS) was histochemically localized at the micropyle of mature unfertilized fathead eggs, and an inhibitor of NOS blocked histochemical staining. CASA analysis of sperm motility in the presence of ovaproduced NO over an 8-minute time course reveals an optimum motility enhancement at 4 minutes that is similar to the effect of 1 x 10(-6) M SNP. This transient NO production by freshly laid ova and the localization of NOS near the site of sperm entry, together with the motility-enhancing effect of 1 x 10(-6) M SNP on sperm, indicates an active role for low-concentration NO in fertilization.
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Affiliation(s)
- M M Creech
- Department of Zoology and Physiology, University of Wyoming, Laramie 82071, USA
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Willison HJ, Lastovica AJ, Prendergast MM, Moran AP, Walsh C, Flitcroft I, Eustace P, McMahon C, Smith J, Smith OP, Lakshmandass G, Taylor MRH, Holland CV, Cox D, Good B, Kearns GM, Gaffney P, Shark K, Frauenshuh M, Ortmann W, Messner R, King R, Rich S, Behrens T, Mahmud N, Molloy A, McPartlin J, Scott JM, Weir DG, Walsh KM, Thorburn D, Mills P, Morris AJ, Good T, Cameron S, McCruden EAB, Bennett MW, O’Connell J, Brady C, Roche D, Collins JK, Shanahan F, O’Sullivant GC, Henry M, Koston S, McMahon K, MacNee W, FitzGerald MX, O’Connor CM, McGonagle D, Gibbon W, O’Connor P, Emery P, Murphy M, Watson R, Casey E, Naidu E, Murphy M, Watson R, Barnes L, McCann S, Murphy M, Watson R, Barnes L, Sweeney E, Barrett EJ, Graham H, Cunningham RT, Johnston CF, Curry WJ, Buchanan KD, Courtney CH, McAllister AS, McCance DR, Hadden DR, Bell PM, Leslie H, Sheridan B, Atkinson AB, Kilbane MT, Smith DF, Murray MJ, Shering SG, McDermott EWM, O’Higgins NJ, Smyth PPA, McEneny J, Trimble ER, Young IS, Sharpe P, Mercer C, McMaster D, Young IS, Evans AE, Young IS, Cundick J, Hasselwander O, McMaster D, McGeough J, Savage D, Maxwell AP, Evans AE, Kee F, Larkin CJ, Watson RGP, Johnston C, Ardill JES, Buchanan KD, McNamara DA, Walsh TN, Bouchier-Hayes DJ, Madden C, Timon C, Gardiner N, Lawler M, O’Riordan J, Duggan C, McCann SR, Gowing H, Braakman E, Lawler M, Byrne C, Martens ACM, Hagenbeek A, McCann SR, Kinsella N, Cusack S, Lawler M, Baker H, White B, Smith OP, Lawler M, Gardiner N, Molloy K, Gowing H, Wogan A, McCann SR, McElwaine S, Lawler M, Hollywood D, McCann SR, Mcmahon C, Merry C, Ryan M, Smith O, Mulcahy FM, Murphy C, Briones J, Gardiner N, McCann SR, Lawler M, White B, Lawler M, Cusack S, Kinsella N, Smith OP, Lavin P, McCaffrey M, Gillen P, White B, Smith OP, Thompson L, Lalloz M, Layton M, Barnes L, Corish C, Kennedy NP, Flood P, Mulligan S, McNamara E, Kennedy NP, Flood P, Mathias PM, Ball E, Duiculescu D, Calistru P, O’Gorman N, Kennedy NP, Abuzakouk M, Feighery C, Brannigan M, Pender S, Keeling F, Varghese J, Lee M, Colreavy M, Gaffney R, Hone S, Herzig M, Walsh M, Dolan C, Wogan A, Lawler M, McCann SR, Hollywood D, Donovan D, Harmey J, Bouchier-Hayes DJ, Haverty A, Wang JH, Harmey JH, Redmond HP, Bouchier-Hayes DJ, McGreal G, Shering SG, Moriarty MJ, Shortt A, Kilbane MT, Smith DF, McDermott EWM, O’Higgins NJ, Smyth PPA, McNamara DA, Harmey J, Wang JH, Donovan D, Walsh TN, Bouchier-Hayes DJ, Kay E, Pidgeon G, Harmey J, McNamara DA, Bouchier-Hayes DJ, Dunne P, Lambkin H, Russell JM, O’Neill AJ, Dunne BM, O’Donovan M, Lawler M, Gaffney EF, Gillan JE, Cotter TG, Horan J, Jones D, Biswas SK, Mulkerrin EC, Brady H, O’Donnell J, Neary J, Healy E, Watson A, Keogh B, Ryan M, Cassidy C, Ward S, Stokes E, Keoghan F, Barrett A, O’Connell P, Ryall N, O’Connell PA, Jenkinson A, O’Brien T, O’Connell PG, Harrison R, Barrett T, Bailey DMD, Butler A, Barton DE, Byrne C, McElwaine S, McCann SR, Lawler M, Cusack S, Lawler M, White B, Smith OP, Daly G, Gill M, Heron S, Hawi Z, Fitzgerald M, Hawi Z, Mynett-Johnson L, Shiels D, Kendler K, McKeon P, Gill M, Straub R, Walsh D, Ryan F, Barton DE, McCabe D, Murphy R, Segurado R, Mulcahy T, Larson B, Comerford C, O’Connell R, O’Mahony E, Gill M, Donnelly J, Minahan F, O’Neill D, Farrell Z, O’Neill D, Jones D, Horan J, Glynn C, Biswas SK, Mulkerrin E, Brady H, Lennox SE, Murphy A, Rea IM, McNulty H, McMeel C, O’Neill D, McEvoy H, Freaney R, McKenna MJ, Crowe M, Keating D, Colreavy M, Hone S, Norman G, Widda S, Viani L, Galvin, Nolan CM, Hardiman O, Hardiman O, Brett F, Droogan O, Gallagher P, Harmey M, King M, Murphy J, Perryrnan R, Sukumaran S, Walsh J, Farrell MA, Hughes G, Cunningham C, Walsh JB, Coakley D, O’Neill D, Hurson M, Flood P, McMonagle P, Hardiman O, Ryan F, O’Sullivan S, Merry C, Dodd P, Redmond J, Mulcahy FM, Browne R, Keating S, O’Connor J, Cassidy BP, Smyth R, Sheppard NP, Cullivan R, Crown J, Walsh N, Denihan A, Bruce I, Radic A, Coakley D, Lawlor BA, Bridges PK, O’Doherty M, Farrington A, O’Doherty M, Farragher B, Fahy S, Kelly R, Carey T, Owens J, Gallagher O, Sloan D, McDonough C, Casey P, Horgan A, Elneihum A, O’Neill C, McMonagle T, Quinn J, Meagher D, Murphy P, Kinsella A, Mullaney J, Waddington JL, Rooney S, Rooney S, Bamford L, Sloan D, O’Connor JJ, Franklin R, O’Brien K, Fitzpatrick G, Laffey JG, Boylan JF, Laffey J, Coleman M, Boylan J, Laffey JG, McShane AJ, Boylan JF, Loughrey JPR, Gardiner J, McGinley J, Leonard I, Carey M, Neligan P, O’Rourke J, Cunningham A, Fennessy F, Kelly C, Bouchier-Hayes D, Fennessy F, Wang JH, Kelly C, Bouchier-Hayes D, Fennessy F, Wang JH, Kelly C, Bouchier-Hayes DJ, Kellett J, Laffey J, Murphy D, Regan J, O’Keeffe D, Mahmud A, Hemeryck L, Feely J, Mahmud A, Hemeryck L, Hall M, Feely J, Menown IBA, Mathew TP, Nesbitt GS, Syme M, Young IS, Adgey AAJ, Menown IBA, Turtle F, Allen J, Anderson J, Adgey AAJ, O’Hanlon R, Codd MB, Walkin S, McCann HA, Sugrue DD, Rasheed AM, Chen G, Kelly C, Bouchier-Hayes DJ, Leahy A, Rasheed AM, Kay E, Jina S, Bouchier-Hayes DJ, Leahy A, McDowell I, Rasheed AM, Wang JH, Wo Q, Kelly C, Bouchier-Hayes DJ, Leahy A, Shuhaibar MN, McGovern E, Turtle F, Menown IBA, Manoharan G, Kirkpatrick R, Campbell NPS, Walkin S, Codd MB, O’Hanlon R, McCarthy C, McCann HA, Sugrue DD, Wen Y, Killalea S, Hall M, Hemeryck L, Feely J, Fahy CJ, Griffith A, McGinley J, McCabe D, Fraser A, Casey E, Ryan T, Murphy R, Browne M, Fenton J, Hughes J, Timon CI, Fenton J, Curran A, Smyth D, Viani L, Walsh M, Hughes JP, Fenton J, Lee P, Kelly A, Timon CI, Hughes JP, Fenton J, Shine N, Blayney A, McShane DP, Timon CI, Hussey J, Howlett M, Langton A, McEvoy A, Slevin J, Fitzpatrick C, Turner MJ, Enright F, Goggin N, Costigan C, Duff D, Osizlok P, Wood F, Watson R, Fitzsimons RB, Flanagan N, Enright F, Barnes L, Watson R, Molloy E, Griffin E, Deasy PF, Sheridan M, White MJ, Moore R, Gray A, Hill J, Glasgow JFT, Middleton B, Slattery D, Donoghue V, McMahon A, Murphy J, Slattery D, McCarthy A, Oslislok P, Duff D, Colreavy M, Keogh I, Hone S, Walsh M, Henry M, Koston S, McMahon K, MacNee W, FitzGerald MX, O’Connor CM, Russell KJ, Henry M, Fitzgerald MX, O’Connor CM, Kavanagh PV, McNamara SM, Feely J, Barry M, O’Brien JE, McCormick P, Molony C, Doyle RM, Walsh JB, Coakley D, Codd MB, O’Connell PR, Dowey LC, McGlynn H, Thurnham DI, Elborn SJ, Flynn L, Carton J, Byrne B, O’Farrelly C, Kelehan P, O’Herlihy C, O’Hara AM, Moran AP, Orren A, Fernie BA, Merry C, Clarke S, Courtney G, de Gascun C, Mulcahy FM, Merry C, Ryan M, Barry M, Mulcahy FM, Merry C, Ryan M, Barry M, Mulcahy FM, Byrne M, Moylett E, Murphy H, Butler K, Nourse C, Thaker H, Barry C, Russell J, Sheehan G, Boyle B, Hone R, Conboy B, Butler C, Moris D, Cormican M, Flynn J, McCormack O, Corbally N, Murray A, Kirrane S, O’Keane C, Hone R, Lynch SM, Cryan B, Whyte D, Morris D, Butler C, Cormican M, Flynn J, Corbett-Feeney G, Murray A, Corbally N, Hone R, Mackle T, Colreavy M, Perkins J, Saidlear C, Young A, Eustace P, Wrigley M, Clifford J, Waddington JL, Tighe O, Croke DT, Drago J, Sibley DR, Feely J, Kelly A, Carvalho M, Hennessy M, Kelly M, Feely J, Hughes C, Hanlon M, Feely J, Sabra K, Keane T, Egan D, Ryan M, Maerry C, Ryan M, Barry M, Mulcahy FM, Maerry C, Ryan M, Barry M, Mulcahy FM, Sharma SC, Williams D, Kelly A, Carvalho M, Feely J, Williams D, Kelly A, Carvalho M, Feely J, Codd MB, Mahon NG, McCann HA, Sugrue DD, Sayers GM, Johnson Z, McNamara SM, Kavanagh PV, Feely J. National scientific medical meeting 1997 abstracts. Ir J Med Sci 1998. [DOI: 10.1007/bf02937234] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Barry MC, Burke P, Joyce WP, Sheehan S, Broe P, Bouchier-Hayes D, Mccollum PT, Holdsworth RI, Stonebridge PA, Belch JJ, O≿suilleabhain C, Waldron D, Hehir D, O≿donnell JA, Brady MP, Kelly J, O≿donnell J, Morasch MD, Couse NF, Colgan MP, Moore DJ, Shanik GD, Russell JD, O≿dwyer TP, Russell J, Walsh M, Lennon GM, Sweeney P, Grainger R, Mcdermott TED, Thornhill JA, Butler MR, Vashisht R, Koppikar M, Rogers HS, Stokes MA, Carroll T, Regan MC, Fitzpatrick JM, Gorey TF, Mccarthy J, Redmond HP, Duggan S, Watson RWG, O≿donnel R, Clements WDB, Mccaigue MD, Halliday IM, Rowlands BJ, O≿hanlon D, Kerin M, Kent P, Grimes H, Maher D, Given HF, Keogh I, Given HF, McAnena O, O≿hanlon DM, Chin D, Mccarthy P, Kennedy S, Dolan J, Mercer P, Mcdermott EW, Duffy MJ, O≿higgins NJ, Delaney CP, Mcgeeney KF, Dolan S, Campbell C, Mccluggage G, Halliday MI, Khan F, Delaney P, Barrett N, Morrin M, Ma QY, Anderson NH, Magee GD, Norwood W, Meagher PJ, Kelly CJ, Deasy JM, Baldota S, Jakoubek F, Mcloughlin H, Eustace PW, Waldron R, Johnston JG, Shuaib I, Strunz B, Hall T, Williams N, Delaney PV, Donnelly VS, O≿herlihy C, O≿connell PR, Walsh M, Attwood SEA, Evoy DA, Boyle B, Brown S, Stephens RB, Gillen P, Attwood S, Tanner WA, Keane FBV, Morris S, Reid S, Neary P, Horgan P, Traynor O, Hyland J, Barrett J, Collins JK, O≿sullivan G, Boyle TJ, Lyerly JK, Gallagher HJ, Naama H, Shou J, Daly JM, Wang JH, Barclay RG, Creagh T, Smalley T, Waters C, Mundy AR, Campbell GR, Stokes K, Kelly C, Abdih H, Bouchier Hayes D, Loughnane F, Ahearne M, Akram M, Drumm J, Collins GN, Mulvin D, Malone F, Kelly D, Delaney C, Mckeever J, Mehigan D, Keaveny TV, Hennessy A, Grace P, Mcgee H, Boyle CAO, Mohan P, Cross KS, Feeley TM, O≿donoghue JM, Al-Ghazal SK, Mccann J, Regan M, Stokes M, Graham F, Young L, Flanagan F, Ennis J, Fitzpatrick J, Gorey T, Walsh S, Callahan J, Macgowan SW, Malone C, Young LS, Wood AE, Madhavan P, O≿sullivan R, Durkan M, Nyhan T, Lynch G, Egan J, Mcavinchey D, Bulle B. Sylvester O’halloran surgical scientific meeting. Ir J Med Sci 1994. [DOI: 10.1007/bf02967098] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Boyle B. Health care reform--an opinion. AARN News Lett 1994; 50:13. [PMID: 7856421] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
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Affiliation(s)
- M C Regan
- Department of Surgery, St James's Hospital, Dublin, Ireland
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Leonessa F, Jacobson M, Boyle B, Lippman J, McGarvey M, Clarke R. Effect of tamoxifen on the multidrug-resistant phenotype in human breast cancer cells: isobologram, drug accumulation, and M(r) 170,000 glycoprotein (gp170) binding studies. Cancer Res 1994; 54:441-7. [PMID: 7903910] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
We have performed isobologram analyses of the ability of tamoxifen (TAM) to alter the response to Adriamycin (ADR) and vinblastine (VBL) in human breast cancer cells. MCF-7 cells express functional receptors for estrogen and progesterone but do not express detectable levels of M(r) 170,000 glycoprotein (gp170). CL 10.3 and MCF-7ADR cells are MCF-7 variants which express gp170. CL 10.3 but not MCF-7ADR cells express functional steroid hormone receptors. Tamoxifen (1-2.5 microM) interacts synergistically with ADR and VBL in CL 10.3 and MCF-7ADR cells. TAM increases the cytotoxicity of VBL and ADR and the intracellular levels of [3H]VBL by approximately 2-3-fold. TAM also prevents the binding of [3H]azidopine to gp170. The ability of TAM to concurrently increase the cytotoxic effects of ADR and VBL, increase VBL accumulation, and inhibit the binding of azidopine to gp170 strongly implies that the synergistic effects of TAM are mediated through its effects on gp170. TAM produces an antagonistic to additive interaction with ADR and VBL in MCF-7 cells, and at high concentrations (5 microM) the synergy apparent in CL 10.3 and MCF-7ADR cells is lost. While TAM clearly has a significant potential for use as a chemosensitizing agent, the design of clinical trials may require careful consideration.
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Affiliation(s)
- F Leonessa
- Vincent T. Lombardi Cancer Research Center, Georgetown University Medical School, Washington, DC 20007
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Dahiya R, Boyle B, Park HD, Kurhanewicz J, Macdonald JM, Narayan P. 13-cis-retinoic acid-mediated growth inhibition of DU-145 human prostate cancer cells. Biochem Mol Biol Int 1994; 32:1-12. [PMID: 8012274] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
The purpose of this study was to examine the effects of 13-cis-retinoic acid (13-cis-RA) on the growth regulation of DU-145 human prostatic cancer cells. The results of these experiments demonstrate that cell growth and metastatic potential of DU-145 cells were significantly inhibited by 13-cis-RA (10 microM). In order to elucidate the possible molecular mechanisms of 13-cis-RA action on prostate cancer cells, we examined the expression of nuclear receptor genes (hRXR alpha) and found that 13-cis-RA treated cells showed higher mRNA expression for hRXR alpha nuclear receptors compared to untreated cells. To elucidate further the possible biochemical mechanisms associated with these alterations, we analyzed the phosphorous metabolites by MR spectroscopy and found that the major metabolites were PME, (PC, PE) and DPDE (UDP-GalNAc, UDP-GLcNAc). The DU-145 cells and xenografts, which were both treated with 13-cis-RA, showed a two-fold decrease in DPDE's, compared to their controls. The higher resolution spectra of perfused cells revealed that phosphocholine levels were twice as high in 13-cis-RA-treated DU-145 cells as compared to untreated cells. These investigations demonstrate for the first time that 13-cis-RA inhibits the growth of human prostatic cancer cells, and this inhibition is associated with an increase in hRXR alpha nuclear receptor gene expression and alterations in phosphorous metabolites detected by 31P MR spectroscopy.
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Affiliation(s)
- R Dahiya
- Department of Urology, University of California, School of Medicine, San Francisco
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Perlmutter S, Pennypacker C, Goldhaber G, Goobar A, Muller R, Desai J, Kim A, Kim M, Newberg H, Small I, Boyle B, Crawford C, McMahon R, Bunclark P, Carter D, Irwin M, Terlevich R, Ellis R, Glazebrook K, Couch W, Mould J, Small T, Abraham R. A Supernova at z = 0.458 and Cosmologya. Ann N Y Acad Sci 1993; 688:554-7. [PMID: 26469461 DOI: 10.1111/j.1749-6632.1993.tb43936.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Affiliation(s)
- S Perlmutter
- Lawrence Berkeley Laboratory, Berkeley, California 94720Center for Particle Astrophysics, Berkeley, California 94720Space Sciences Laboratory, Berkeley, California 94720Institute of Astronomy, Cambridge, United KingdomRoyal Greenwich Observatory, Cambridge, United KingdomUniversity of Durham, Durham, United KingdomUniversity of New South Wales, Sydney, AustraliaCalifornia Institute of Technology, Pasadena, California 91125Dominion Astrophysical Observatory, Victoria, British Columbia, Canada
| | - C Pennypacker
- Lawrence Berkeley Laboratory, Berkeley, California 94720Center for Particle Astrophysics, Berkeley, California 94720Space Sciences Laboratory, Berkeley, California 94720Institute of Astronomy, Cambridge, United KingdomRoyal Greenwich Observatory, Cambridge, United KingdomUniversity of Durham, Durham, United KingdomUniversity of New South Wales, Sydney, AustraliaCalifornia Institute of Technology, Pasadena, California 91125Dominion Astrophysical Observatory, Victoria, British Columbia, Canada
| | - G Goldhaber
- Lawrence Berkeley Laboratory, Berkeley, California 94720Center for Particle Astrophysics, Berkeley, California 94720Space Sciences Laboratory, Berkeley, California 94720Institute of Astronomy, Cambridge, United KingdomRoyal Greenwich Observatory, Cambridge, United KingdomUniversity of Durham, Durham, United KingdomUniversity of New South Wales, Sydney, AustraliaCalifornia Institute of Technology, Pasadena, California 91125Dominion Astrophysical Observatory, Victoria, British Columbia, Canada
| | - A Goobar
- Lawrence Berkeley Laboratory, Berkeley, California 94720Center for Particle Astrophysics, Berkeley, California 94720Space Sciences Laboratory, Berkeley, California 94720Institute of Astronomy, Cambridge, United KingdomRoyal Greenwich Observatory, Cambridge, United KingdomUniversity of Durham, Durham, United KingdomUniversity of New South Wales, Sydney, AustraliaCalifornia Institute of Technology, Pasadena, California 91125Dominion Astrophysical Observatory, Victoria, British Columbia, Canada
| | - R Muller
- Lawrence Berkeley Laboratory, Berkeley, California 94720Center for Particle Astrophysics, Berkeley, California 94720Space Sciences Laboratory, Berkeley, California 94720Institute of Astronomy, Cambridge, United KingdomRoyal Greenwich Observatory, Cambridge, United KingdomUniversity of Durham, Durham, United KingdomUniversity of New South Wales, Sydney, AustraliaCalifornia Institute of Technology, Pasadena, California 91125Dominion Astrophysical Observatory, Victoria, British Columbia, Canada
| | - J Desai
- Lawrence Berkeley Laboratory, Berkeley, California 94720Center for Particle Astrophysics, Berkeley, California 94720Space Sciences Laboratory, Berkeley, California 94720Institute of Astronomy, Cambridge, United KingdomRoyal Greenwich Observatory, Cambridge, United KingdomUniversity of Durham, Durham, United KingdomUniversity of New South Wales, Sydney, AustraliaCalifornia Institute of Technology, Pasadena, California 91125Dominion Astrophysical Observatory, Victoria, British Columbia, Canada
| | - A Kim
- Lawrence Berkeley Laboratory, Berkeley, California 94720Center for Particle Astrophysics, Berkeley, California 94720Space Sciences Laboratory, Berkeley, California 94720Institute of Astronomy, Cambridge, United KingdomRoyal Greenwich Observatory, Cambridge, United KingdomUniversity of Durham, Durham, United KingdomUniversity of New South Wales, Sydney, AustraliaCalifornia Institute of Technology, Pasadena, California 91125Dominion Astrophysical Observatory, Victoria, British Columbia, Canada
| | - M Kim
- Lawrence Berkeley Laboratory, Berkeley, California 94720Center for Particle Astrophysics, Berkeley, California 94720Space Sciences Laboratory, Berkeley, California 94720Institute of Astronomy, Cambridge, United KingdomRoyal Greenwich Observatory, Cambridge, United KingdomUniversity of Durham, Durham, United KingdomUniversity of New South Wales, Sydney, AustraliaCalifornia Institute of Technology, Pasadena, California 91125Dominion Astrophysical Observatory, Victoria, British Columbia, Canada
| | - H Newberg
- Lawrence Berkeley Laboratory, Berkeley, California 94720Center for Particle Astrophysics, Berkeley, California 94720Space Sciences Laboratory, Berkeley, California 94720Institute of Astronomy, Cambridge, United KingdomRoyal Greenwich Observatory, Cambridge, United KingdomUniversity of Durham, Durham, United KingdomUniversity of New South Wales, Sydney, AustraliaCalifornia Institute of Technology, Pasadena, California 91125Dominion Astrophysical Observatory, Victoria, British Columbia, Canada
| | - I Small
- Lawrence Berkeley Laboratory, Berkeley, California 94720Center for Particle Astrophysics, Berkeley, California 94720Space Sciences Laboratory, Berkeley, California 94720Institute of Astronomy, Cambridge, United KingdomRoyal Greenwich Observatory, Cambridge, United KingdomUniversity of Durham, Durham, United KingdomUniversity of New South Wales, Sydney, AustraliaCalifornia Institute of Technology, Pasadena, California 91125Dominion Astrophysical Observatory, Victoria, British Columbia, Canada
| | - B Boyle
- Lawrence Berkeley Laboratory, Berkeley, California 94720Center for Particle Astrophysics, Berkeley, California 94720Space Sciences Laboratory, Berkeley, California 94720Institute of Astronomy, Cambridge, United KingdomRoyal Greenwich Observatory, Cambridge, United KingdomUniversity of Durham, Durham, United KingdomUniversity of New South Wales, Sydney, AustraliaCalifornia Institute of Technology, Pasadena, California 91125Dominion Astrophysical Observatory, Victoria, British Columbia, Canada
| | - C Crawford
- Lawrence Berkeley Laboratory, Berkeley, California 94720Center for Particle Astrophysics, Berkeley, California 94720Space Sciences Laboratory, Berkeley, California 94720Institute of Astronomy, Cambridge, United KingdomRoyal Greenwich Observatory, Cambridge, United KingdomUniversity of Durham, Durham, United KingdomUniversity of New South Wales, Sydney, AustraliaCalifornia Institute of Technology, Pasadena, California 91125Dominion Astrophysical Observatory, Victoria, British Columbia, Canada
| | - R McMahon
- Lawrence Berkeley Laboratory, Berkeley, California 94720Center for Particle Astrophysics, Berkeley, California 94720Space Sciences Laboratory, Berkeley, California 94720Institute of Astronomy, Cambridge, United KingdomRoyal Greenwich Observatory, Cambridge, United KingdomUniversity of Durham, Durham, United KingdomUniversity of New South Wales, Sydney, AustraliaCalifornia Institute of Technology, Pasadena, California 91125Dominion Astrophysical Observatory, Victoria, British Columbia, Canada
| | - P Bunclark
- Lawrence Berkeley Laboratory, Berkeley, California 94720Center for Particle Astrophysics, Berkeley, California 94720Space Sciences Laboratory, Berkeley, California 94720Institute of Astronomy, Cambridge, United KingdomRoyal Greenwich Observatory, Cambridge, United KingdomUniversity of Durham, Durham, United KingdomUniversity of New South Wales, Sydney, AustraliaCalifornia Institute of Technology, Pasadena, California 91125Dominion Astrophysical Observatory, Victoria, British Columbia, Canada
| | - D Carter
- Lawrence Berkeley Laboratory, Berkeley, California 94720Center for Particle Astrophysics, Berkeley, California 94720Space Sciences Laboratory, Berkeley, California 94720Institute of Astronomy, Cambridge, United KingdomRoyal Greenwich Observatory, Cambridge, United KingdomUniversity of Durham, Durham, United KingdomUniversity of New South Wales, Sydney, AustraliaCalifornia Institute of Technology, Pasadena, California 91125Dominion Astrophysical Observatory, Victoria, British Columbia, Canada
| | - M Irwin
- Lawrence Berkeley Laboratory, Berkeley, California 94720Center for Particle Astrophysics, Berkeley, California 94720Space Sciences Laboratory, Berkeley, California 94720Institute of Astronomy, Cambridge, United KingdomRoyal Greenwich Observatory, Cambridge, United KingdomUniversity of Durham, Durham, United KingdomUniversity of New South Wales, Sydney, AustraliaCalifornia Institute of Technology, Pasadena, California 91125Dominion Astrophysical Observatory, Victoria, British Columbia, Canada
| | - R Terlevich
- Lawrence Berkeley Laboratory, Berkeley, California 94720Center for Particle Astrophysics, Berkeley, California 94720Space Sciences Laboratory, Berkeley, California 94720Institute of Astronomy, Cambridge, United KingdomRoyal Greenwich Observatory, Cambridge, United KingdomUniversity of Durham, Durham, United KingdomUniversity of New South Wales, Sydney, AustraliaCalifornia Institute of Technology, Pasadena, California 91125Dominion Astrophysical Observatory, Victoria, British Columbia, Canada
| | - R Ellis
- Lawrence Berkeley Laboratory, Berkeley, California 94720Center for Particle Astrophysics, Berkeley, California 94720Space Sciences Laboratory, Berkeley, California 94720Institute of Astronomy, Cambridge, United KingdomRoyal Greenwich Observatory, Cambridge, United KingdomUniversity of Durham, Durham, United KingdomUniversity of New South Wales, Sydney, AustraliaCalifornia Institute of Technology, Pasadena, California 91125Dominion Astrophysical Observatory, Victoria, British Columbia, Canada
| | - K Glazebrook
- Lawrence Berkeley Laboratory, Berkeley, California 94720Center for Particle Astrophysics, Berkeley, California 94720Space Sciences Laboratory, Berkeley, California 94720Institute of Astronomy, Cambridge, United KingdomRoyal Greenwich Observatory, Cambridge, United KingdomUniversity of Durham, Durham, United KingdomUniversity of New South Wales, Sydney, AustraliaCalifornia Institute of Technology, Pasadena, California 91125Dominion Astrophysical Observatory, Victoria, British Columbia, Canada
| | - W Couch
- Lawrence Berkeley Laboratory, Berkeley, California 94720Center for Particle Astrophysics, Berkeley, California 94720Space Sciences Laboratory, Berkeley, California 94720Institute of Astronomy, Cambridge, United KingdomRoyal Greenwich Observatory, Cambridge, United KingdomUniversity of Durham, Durham, United KingdomUniversity of New South Wales, Sydney, AustraliaCalifornia Institute of Technology, Pasadena, California 91125Dominion Astrophysical Observatory, Victoria, British Columbia, Canada
| | - J Mould
- Lawrence Berkeley Laboratory, Berkeley, California 94720Center for Particle Astrophysics, Berkeley, California 94720Space Sciences Laboratory, Berkeley, California 94720Institute of Astronomy, Cambridge, United KingdomRoyal Greenwich Observatory, Cambridge, United KingdomUniversity of Durham, Durham, United KingdomUniversity of New South Wales, Sydney, AustraliaCalifornia Institute of Technology, Pasadena, California 91125Dominion Astrophysical Observatory, Victoria, British Columbia, Canada
| | - T Small
- Lawrence Berkeley Laboratory, Berkeley, California 94720Center for Particle Astrophysics, Berkeley, California 94720Space Sciences Laboratory, Berkeley, California 94720Institute of Astronomy, Cambridge, United KingdomRoyal Greenwich Observatory, Cambridge, United KingdomUniversity of Durham, Durham, United KingdomUniversity of New South Wales, Sydney, AustraliaCalifornia Institute of Technology, Pasadena, California 91125Dominion Astrophysical Observatory, Victoria, British Columbia, Canada
| | - R Abraham
- Lawrence Berkeley Laboratory, Berkeley, California 94720Center for Particle Astrophysics, Berkeley, California 94720Space Sciences Laboratory, Berkeley, California 94720Institute of Astronomy, Cambridge, United KingdomRoyal Greenwich Observatory, Cambridge, United KingdomUniversity of Durham, Durham, United KingdomUniversity of New South Wales, Sydney, AustraliaCalifornia Institute of Technology, Pasadena, California 91125Dominion Astrophysical Observatory, Victoria, British Columbia, Canada
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Boyle B. Future directions in nursing. AARN News Lett 1992; 48:7-9. [PMID: 1414190] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
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Dahiya R, Yoon WH, Boyle B, Schoenberg S, Yen TS, Narayan P. Biochemical, cytogenetic, and morphological characteristics of human primary and metastatic prostate cancer cell lines. Biochem Int 1992; 27:567-77. [PMID: 1417893] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
Metastatic properties of human prostatic cancer cell lines (ND-1 and DU-145) were examined using various biochemical techniques. DU-145 cells had a higher metastatic potential than ND-1 cells. Cytogenetic analysis by G-banding demonstrated an aneuploid karyotype with considerable structural rearrangement. ND-1 cells had a modal chromosome number range lower than DU-145 cells (45-66, compared to 54-62). Ploidy analysis revealed that DU-145 cells showed hyperdiploidy with a greater amount of proliferation than the majority of ND-1 cells. Electron microscopic studies revealed little change in the cell morphology of either line. DU-145 cells had lower phosphatidyl choline levels and higher sphingomyelin levels than ND-1. DU-145 cells had much lower arachidonic acid levels than ND-1 cells. SDS-polyacrylamide gel electrophoresis revealed protein differences between the two cell lines. This study demonstrates for the first time that lipids, proteins and cytogenetic parameters differ in human primary and secondary prostate cancer cell lines.
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Affiliation(s)
- R Dahiya
- Department of Urology, University of California Medical School, San Francisco 94143
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Dahiya R, Boyle B, Goldberg BC, Yoon WH, Konety B, Chen K, Yen TS, Blumenfeld W, Narayan P. Metastasis-associated alterations in phospholipids and fatty acids of human prostatic adenocarcinoma cell lines. Biochem Cell Biol 1992; 70:548-54. [PMID: 1333235 DOI: 10.1139/o92-085] [Citation(s) in RCA: 43] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
Metastatic variants of human prostatic adenocarcinoma cell lines (DU-145, LNCaP, and ND-1) were studied by using soft agar colony forming efficiency, nude mice tumorigenicity, in vitro invasion assay, and type IV collagenase assay. The DU-145 and ND-1 cell line showed higher metastatic potential than LNCaP. Lipids from DU-145, ND-1, and LNCaP cells were extracted and analyzed by thin-layer chromatography and gas-liquid chromatography. The major lipids were phosphatidylcholine, phosphatidylethanolamine, sphingomyelin, fatty acids, and cholesterol. The sphingomyelin level was significantly higher in highly metastatic cells (DU-145 and ND-1) compared with the lower metastatic variant (LNCaP). The increase in the synthetic pathway and decrease in degradation pathway of sphingomyelin in microsomal fractions was sufficient to account for the measured increase in sphingomyelin in DU-145 cells compared with LNCaP cells. The major fatty acids of these lipids were palmitic (16:0), stearic (18:0), oelic (18:1), and arachidonic acid (20:4). The arachidonic acid level was significantly decreased in DU-145 and ND-1 compared with LNCaP cells. Electron microscopic studies showed no significant changes in the morphology of DU-145, ND-1, and LNCaP cells. The results of these investigations demonstrate for the first time that sphingomyelin and arachidonic acid contents are different in high and low metastatic variants of human prostatic adenocarcinoma cell lines.
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Affiliation(s)
- R Dahiya
- Department of Urology, Pathology, and Cytogenetics, University of California Medical School, San Francisco 94143
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Gough DB, Boyle B, Joyce WP, Delaney CP, McGeeney KF, Gorey TF, Fitzpatrick JM. Free radical inhibition and serial chemiluminescence in evolving experimental pancreatitis. Br J Surg 1990; 77:1256-9. [PMID: 1701329 DOI: 10.1002/bjs.1800771119] [Citation(s) in RCA: 49] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/28/2022]
Abstract
Oxygen free radical activity and inhibition were examined in experimental pancreatitis. Twenty-five rats were randomized to five groups: controls received intravenous saline, to simulate pancreatitis one group received intravenous caerulein (5 micrograms kg-1 h-1), and three groups received sodium taurocholate via the pancreatic duct (0.2 ml, 5 per cent), either alone, following allopurinol or immediately before superoxide dismutase. Chemiluminescence (a phenomenon based on the emission of light during chemical reactions and which is dependent on oxygen free radical activity) was used as an index of oxygen free radical activity and was measured in tissue samples at 5-min intervals following induction of pancreatitis. The control mean(s.e.m.) serum amylase level 1 h after induction of pancreatitis was 635(13) units. It was significantly elevated in caerulein-induced pancreatitis, 1833(118) units (P less than 0.05) and exceeded 3000 units in all taurocholate-infused animals. Mean(s.e.m.) chemiluminescence ranged from 44 (8) mV 100 mg-1 at time zero to 404(113) mV 100 mg-1 at 1 h in controls. In caerulein-induced pancreatitis mean(s.e.m.) chemiluminescence peaked at 20 min (1399(239) mV 100 mg-1, P less than 0.02) and in taurocholate-induced pancreatitis at 15 min (2316(95) mV 100 mg-1, P less than 0.004). Superoxide dismutase significantly reduced chemiluminescence and hyperamylasaemia in taurocholate groups. Increasing oxygen free radical activity paralleled evolving pancreatitis. Superoxide dismutase may have a therapeutic role in pancreatitis.
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Affiliation(s)
- D B Gough
- Department of Surgery, Mater Misericordiae Hospital and University College Dublin, Ireland
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46
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Boyle B. Humanism in nursing science. AARN News Lett 1990; 46:11-2. [PMID: 2309535] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/31/2022]
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Wholey MH, Zikria EA, Boyle B. Inadvertant atrial fixation of a Swan-Ganz catheter by suture and a method for its percutaneous removal. Cardiovasc Intervent Radiol 1987; 10:171-4. [PMID: 3111700 DOI: 10.1007/bf02577996] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Abstract
A patient with type I dissection of the thoracic aorta inadvertently had a Swan-Ganz catheter sutured to the right atrium during surgical repair of the dissection. A method for its removal using percutaneous passage of a No. 15 scalpel blade is described. The hazards of Swan-Ganz catheters are explored, and the changing roles of nonsurgical interventional procedures are discussed.
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