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Nikkhah D, Yassin A, Kodama H, Brady C. Letter to the Editor: A Response to "Ultra-Thin Anterolateral Thigh Free Flap: An Adipocutaneous Flap with the Most Superficial Elevation Plane". Plast Reconstr Surg 2024:00006534-990000000-02269. [PMID: 38439160 DOI: 10.1097/prs.0000000000011387] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/06/2024]
Affiliation(s)
- D Nikkhah
- Department of Plastic Surgery, Royal Free Hospital, London, United Kingdom
- University College London Division of Surgical Sciences, London, United Kingdom
| | - Ahmed Yassin
- Department of Plastic Surgery, Royal Free Hospital, London, United Kingdom
| | - Hiroki Kodama
- Department of Plastic Surgery, Royal Free Hospital, London, United Kingdom
| | - C Brady
- Department of Plastic Surgery, Royal Free Hospital, London, United Kingdom
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2
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Cook H, Brady C, Bray J, Nikkhah D. Letter to the Editor Regarding ‘Clinical application of an expanded reverse-island flap with two dorsal metacarpal arteries and dorsal metacarpal nerves in index- and middle-finger-degloving injury repair and amputation reconstruction’. J Plast Reconstr Aesthet Surg 2023; 80:25-27. [PMID: 36966655 DOI: 10.1016/j.bjps.2023.02.015] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2023] [Accepted: 02/13/2023] [Indexed: 03/08/2023]
Affiliation(s)
- H Cook
- Plastic Surgery Department, Royal Free Hospital, Pond Street, London NW3 2QG, UK.
| | - C Brady
- Plastic Surgery Department, Royal Free Hospital, Pond Street, London NW3 2QG, UK
| | - J Bray
- Plastic Surgery Department, Royal Free Hospital, Pond Street, London NW3 2QG, UK
| | - D Nikkhah
- Plastic Surgery Department, Royal Free Hospital, Pond Street, London NW3 2QG, UK; Department of Surgical Sciences, University College London, UK
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Brady C, Shaikh MG. Liraglutide does not provide sustainable results for weight improvement in adolescents with obesity. Arch Dis Child Educ Pract Ed 2022; 107:232. [PMID: 32988963 DOI: 10.1136/archdischild-2020-319807] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- Clare Brady
- General Paediatrics, Royal Hospital for Children, Glasgow, UK
| | - M Guftar Shaikh
- Endocrinology, Royal Hospital for Sick Children, Glasgow, Glasgow, UK
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Teneback C, Prior C, McCuin T, Sender A, Weintraub Z, Brady C, Ludlow M, Steiert K, Antell M, Huguenin B, DeVoe S. 69: Implementation of a multifaceted mental health screening approach in an adult cystic fibrosis clinic. J Cyst Fibros 2021. [DOI: 10.1016/s1569-1993(21)01494-6] [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: 10/20/2022]
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Wires C, Hoffman R, Talbert A, Brady C, O'Haire M, Croney C. 111 Ability to interpret and apply animal behavior and welfare terminology by adults within the horse industry. J Equine Vet Sci 2021. [DOI: 10.1016/j.jevs.2021.103574] [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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6
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Coleman K, Brady C, O’Reilly S, O’ Brien T. Exploring the Interface of Oncology and Palliative Care in Ireland. Ir Med J 2019; 112:969. [PMID: 31642643] [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: 06/10/2023]
Abstract
Aims To explore the integration and delivery of oncology led referrals to palliative care (PC) by examining physician attitudes and referral practices. Methods An online survey was circulated to oncologists and PC physicians in Ireland. Results The study (N = 100) comprised sixty-nine oncologists (69%) and thirty-one PC physicians (31%). Ninety-two(92%) believe patients with advanced cancer should receive concurrent treatment, however only 53% of oncologists(N = 37) routinely refer. Regarding end-of-life (EOL) care: 81% of oncologists (N = 55) are directly involved in its administration, despite 84% (N = 53) agreeing patients benefit when PC specialists coordinate EOL care. Conclusion The gulf between positive attitudes and limited implementation suggests the need for interdisciplinary changes to facilitate integration of PC in clinical practice in Ireland.
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Affiliation(s)
- K Coleman
- School of Medicine, University College Cork
| | - C Brady
- Department of Medical Oncology, Cork University Hospital
| | - S O’Reilly
- Department of Medical Oncology, Cork University Hospital
| | - T O’ Brien
- Marymount University Hospital and Hospice, Co Cork
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Wires C, Talbert B, Croney C, O'Haire M, Hoffman R, Brady C. Interpretation and understanding of equine behavior terminology and learning theory in undergraduate students. J Equine Vet Sci 2019. [DOI: 10.1016/j.jevs.2019.03.178] [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: 10/26/2022]
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McSorley L, Goggin C, Elhadi N, O’Dea P, Sui J, Kelly D, Brady C, O’Mahony D. Timing of treatment with concurrent chemoradiotherapy (CRT) and impact on progression free survival (PFS) in limited stage small cell lung cancer (LSSCLC). Ann Oncol 2019. [DOI: 10.1093/annonc/mdz071.004] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Brady C, Pless Kaiser A, Davison E, Spiro A. COMBAT-RELATED TRAUMA RE-ENGAGEMENT IN AGING VIETNAM-ERA VETERANS: CORRELATES OF POSITIVE AND NEGATIVE OUTCOMES. Innov Aging 2018. [DOI: 10.1093/geroni/igy023.1429] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- C Brady
- VA Boston Healthcare System, Boston, Massachusetts, United States
| | - A Pless Kaiser
- Behavioral Science Division, National Center for PTSD, VA Boston Healthcare System
| | - E Davison
- Women’s Health Sciences Division, National Center for PTSD, VA Boston Healthcare System
| | - A Spiro
- Massachusetts Veterans Epidemiology Research and Information Center, VA Boston Healthcare System
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10
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Brady C, Aulakh A, Elmiyeh B. Working Towards a National Tonsillectomy Database. Int J Surg 2017. [DOI: 10.1016/j.ijsu.2017.08.231] [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: 10/18/2022]
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11
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Frank B, Brady C. BEST PRACTICES FOR IMPLEMENTING PERSONALIZED MUSIC WITH NURSING HOME RESIDENTS WITH DEMENTIA. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.3818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- B. Frank
- B&F Consulting, Warren, Rhode Island
| | - C. Brady
- B&F Consulting, Warren, Rhode Island
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Brady C, Allainguillaume J, Denman S, Arnold D. Rapid identification of bacteria associated with Acute Oak Decline by high-resolution melt analysis. Lett Appl Microbiol 2017; 63:89-95. [PMID: 27227694 DOI: 10.1111/lam.12593] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [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: 02/18/2016] [Revised: 05/06/2016] [Accepted: 05/23/2016] [Indexed: 11/28/2022]
Abstract
UNLABELLED Two Gram-negative Enterobacteriaceae, Gibbsiella quercinecans and Brenneria goodwinii, are frequently isolated from oak suffering from Acute Oak Decline. These two species are difficult to identify based on colony morphology, carbohydrate utilization or 16S rRNA gene sequence, and identification using gyrB gene sequencing is time-consuming and laborious. A rapid identification technique, based on high-resolution melt analysis of the atpD gene, was designed to efficiently process numerous isolates from an increasing number of affected woodlands and parks. Principal component analysis of the resulting melt curves from strains of G. quercinecans, B. goodwinii and their close phylogenetic relatives allowed differentiation into distinct clusters based on species or subspecies identity. SIGNIFICANCE AND IMPACT OF THE STUDY Acute Oak Decline is an increasing threat to Britain's native oak population. Two novel bacterial species both belonging to the family Enterobacteriaceae, Gibbsiella quercinecans and Brenneria goodwinii, are thought to play an important role in symptom development. Here, we describe a rapid identification technique using high-resolution melt analysis of the atpD gene able to assign isolates to either G. quercinecans or B. goodwinii in a single assay, greatly reducing the time taken to identify if either or both of these species are present in symptomatic oak.
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Affiliation(s)
- C Brady
- Faculty of Health and Applied Sciences, Centre for Research in Bioscience, University of the West of England, Bristol, UK
| | - J Allainguillaume
- Faculty of Health and Applied Sciences, Centre for Research in Bioscience, University of the West of England, Bristol, UK
| | - S Denman
- Forest Research, Centre for Ecosystems Society and Biosecurity, Farnham, UK
| | - D Arnold
- Faculty of Health and Applied Sciences, Centre for Research in Bioscience, University of the West of England, Bristol, UK
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Sajdera K, Rice B, Brady C. Self-efficacy of 4-H horse and pony volunteers in equine science content. J Equine Vet Sci 2017. [DOI: 10.1016/j.jevs.2017.03.195] [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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14
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Kelly D, Brady C, Sui J, Cronin E, O'Hare D, Waldron J, O'Mahony D, Power D, Bambury RM, O'Reilly S. Cancer Care Costs and Clinical Trials. Ir Med J 2017; 110:557. [PMID: 28665096] [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: 06/07/2023]
Affiliation(s)
- D Kelly
- Department of Medical Oncology and Pharmacy, Cork University Hospital
| | - C Brady
- Department of Medical Oncology and Pharmacy, Cork University Hospital
| | - J Sui
- Department of Medical Oncology and Pharmacy, Cork University Hospital
| | - E Cronin
- Department of Medical Oncology and Pharmacy, Cork University Hospital
| | - D O'Hare
- Department of Medical Oncology and Pharmacy, Cork University Hospital
| | - J Waldron
- Department of Medical Oncology and Pharmacy, Cork University Hospital
| | - D O'Mahony
- Department of Medical Oncology and Pharmacy, Cork University Hospital
| | - D Power
- Department of Medical Oncology and Pharmacy, Cork University Hospital
| | - R M Bambury
- Department of Medical Oncology and Pharmacy, Cork University Hospital
| | - S O'Reilly
- Department of Medical Oncology and Pharmacy, Cork University Hospital
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Moss H, Brady C, Kelly B. A Fuller Picture: Evaluating an Art Therapy Programme in a Multi-disciplinary Mental Health Service. Eur Psychiatry 2017. [DOI: 10.1016/j.eurpsy.2017.01.970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/19/2022] Open
Abstract
Art therapy has a long history in mental health care but requires an enhanced evidence based in order to better identify its precise role in contemporary services. This paper describes an evaluation of an art therapy programme in an acute adult psychiatry admission unit in Ireland. A mixed method research design was used. Quantitative data were collected through a survey of 35 staff members and 11 service-users. Qualitative data included free-text comments collected in the survey and individual feedback from service-users. Both methods aimed to assess the role of art therapy as part of a multidisciplinary mental health service. Thematic content analysis was employed to analyse qualitative data. Staff demonstrated overwhelming support for art therapy as one element within multidisciplinary services available to patients in the acute psychiatry setting, qualitative feedback associated art therapy with improvements in quality of life and individual support, and emphasised its role as a nonverbal intervention, especially useful for those who find talking therapy difficult. Creative self-expression is valued by staff and service-users as part of the recovery process. Recommendations arising from the research include continuing the art therapy service, expanding it to include rehabilitation patients, provision of information and education sessions to staff and further research to identify other potential long-term effects. The low response of staff and small sample in this study, however, must be noted as limitations to these findings.Disclosure of interestThe authors have not supplied their declaration of competing interest.
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Healy C, Brady C, Sze Yin Sui J, McSorley L, Barry J, Relihan N, Corrigan M, O’Connor T, O’Mahony T, O’Reilly S. An Irish regional cancer centre experience of impact of incidental pulmonary nodules detected during treatment for early stage breast cancer. Breast 2017. [DOI: 10.1016/s0960-9776(17)30273-4] [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: 11/29/2022] Open
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Lynch H, Leonard FC, Walia K, Lawlor PG, Duffy G, Fanning S, Markey BK, Brady C, Gardiner GE, Argüello H. Investigation of in-feed organic acids as a low cost strategy to combat Salmonella in grower pigs. Prev Vet Med 2017; 139:50-57. [PMID: 28364832 DOI: 10.1016/j.prevetmed.2017.02.008] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [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: 11/21/2016] [Revised: 01/29/2017] [Accepted: 02/17/2017] [Indexed: 12/21/2022]
Abstract
Salmonella carriage in pigs is a significant food safety issue. Dietary supplementation with organic acids has previously been shown to reduce shedding and transmission of Salmonella. Therefore, this study aimed to examine the effect of three commercially available organic acid-based products on Salmonella levels in grower pigs, using a model of experimental infection that closely mimics natural exposure to the organism. Seven week old trial pigs (n=40) with a mean weight of 14.7kg were placed in one of four pens with 10 pigs/pen. Pens had previously been contaminated with Salmonella Typhimurium 4,[5],12;i;- via seeder pigs. Trial pigs received one of four diets for 28days: 1, control diet; 2, sodium butyrate supplemented diet; 3, benzoic acid supplemented diet and 4, formic-citric acid supplemented diet. A further 10 pigs were placed in a Salmonella-free pen receiving the control diet. Pigs were weighed and blood sampled on days 0 and 28. Faeces was collected on day 0, 2, 3, 5, 7, 14, 21 and 28 and examined for Salmonella. On day 28, 5 pigs/group were euthanised and ileocaecal lymph nodes (ILN) and caecal contents sampled for culture. The remaining 5 pigs/pen were then fed the control diet and faeces were collected on days 35 and 42. On day 42 pigs were euthanised and ILN and caecal contents tested for Salmonella levels. The trial was repeated once. Within the first two days of exposure to the contaminated environment, 96% (77/80) of pigs became infected. Most pigs shed Salmonella at levels of between 100-103 CFU/g faeces for at least 7days post-exposure. A significant reduction in Salmonella faecal concentration was observed after supplementation with sodium butyrate (p=0.001) and a formic citric acid blend (p<0.0001). Average daily weight gain (ADWG) was significantly increased in all groups fed the supplemented feed when compared to the positive control group. The use of sodium butyrate or a blend of formic and citric acid in feed could be considered a cost-effective control measure to reduce Salmonella faecal shedding and improve ADWG in Salmonella infected herds.
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Affiliation(s)
- H Lynch
- National Food Research Centre, Teagasc, Ashtown, Dublin, Ireland; UCD Veterinary Sciences Centre, University College Dublin, Dublin, Ireland.
| | - F C Leonard
- UCD Veterinary Sciences Centre, University College Dublin, Dublin, Ireland
| | - K Walia
- National Food Research Centre, Teagasc, Ashtown, Dublin, Ireland; Department of Science, Waterford Institute of Technology, Waterford, Ireland
| | - P G Lawlor
- Pig Development Department, Teagasc, Moorepark, Fermoy, Co. Cork, Ireland
| | - G Duffy
- National Food Research Centre, Teagasc, Ashtown, Dublin, Ireland
| | - S Fanning
- UCD Veterinary Sciences Centre, University College Dublin, Dublin, Ireland
| | - B K Markey
- UCD Veterinary Sciences Centre, University College Dublin, Dublin, Ireland
| | - C Brady
- Department of Agriculture, Food and the Marine, Central Veterinary Research Laboratory, Backweston, Ireland
| | - G E Gardiner
- Department of Science, Waterford Institute of Technology, Waterford, Ireland
| | - H Argüello
- National Food Research Centre, Teagasc, Ashtown, Dublin, Ireland
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Kelly D, Mc Sorley L, O'Shea E, Mc Carthy E, Bowe S, Brady C, Sui J, Dawod MA, O'Brien O, Graham D, McCarthy J, Burke L, Power D, O'Reilly S, Bambury RM, Mahony DO. A regional analysis of epidermal growth factor receptor (EGFR) mutated lung cancer for HSE South. Ir J Med Sci 2017; 186:855-857. [PMID: 28185061 DOI: 10.1007/s11845-017-1579-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [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: 01/07/2017] [Accepted: 02/05/2017] [Indexed: 11/28/2022]
Abstract
BACKGROUND EGFR mutated lung cancer represents a subgroup with distinct clinical presentations, prognosis, and management requirements. We investigated the survival, prognostic factors, and real-world treatment of NSCLC patients with EGFR mutation in clinical practice. METHODS A retrospective review of all specimens sent for EGFR analysis from December 2009 to September 2015 was performed. Patient demographics, specimen type, EGFR mutation status/type, stage at diagnosis, treatment, response rate, and survival data were recorded. RESULTS 27/334 (8%) patient specimens sent for EGFR testing tested positive for a sensitising EGFR mutation. The median age was 65 years (40-85 years). Exon 19 deletion represented the most commonly detected alteration, accounting for 39% (n = 11). First-line treatment for those with Exon 18, 19, or 21 alterations (n = 24) was with an EGFR tyrosine kinase inhibitor (TKI) in 79% (n = 19). Objective response rate among these patients was 74% and median duration of response was 13 months (range 7-35 months). CONCLUSION The incidence of EGFR mutation in our cohort of NSCLC is 9% which is consistent with mutation incidence reported in other countries. The rate of EGFR mutation in our population is slightly below that reported internationally, but treatment outcomes are consistent with published data. Real-world patient data have important contributions to make with regard to quality measurement, incorporating patient experience into guidelines and identifying safety signals.
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Affiliation(s)
- D Kelly
- Department of Medical Oncology, Cork University Hospital, Mercy University Hospital Cork, University Hospital Kerry, Tralee, County Kerry, Ireland.
| | - L Mc Sorley
- Department of Medical Oncology, Cork University Hospital, Mercy University Hospital Cork, University Hospital Kerry, Tralee, County Kerry, Ireland
| | - E O'Shea
- Department of Medical Oncology, Cork University Hospital, Mercy University Hospital Cork, University Hospital Kerry, Tralee, County Kerry, Ireland
| | - E Mc Carthy
- Department of Medical Oncology, Cork University Hospital, Mercy University Hospital Cork, University Hospital Kerry, Tralee, County Kerry, Ireland
| | - S Bowe
- Department of Medical Oncology, Cork University Hospital, Mercy University Hospital Cork, University Hospital Kerry, Tralee, County Kerry, Ireland
| | - C Brady
- Department of Medical Oncology, Cork University Hospital, Mercy University Hospital Cork, University Hospital Kerry, Tralee, County Kerry, Ireland
| | - J Sui
- Department of Medical Oncology, Cork University Hospital, Mercy University Hospital Cork, University Hospital Kerry, Tralee, County Kerry, Ireland
| | - M A Dawod
- Department of Medical Oncology, Cork University Hospital, Mercy University Hospital Cork, University Hospital Kerry, Tralee, County Kerry, Ireland
| | - O O'Brien
- Department of Pathology, Cork University Hospital, Cork, Ireland
| | - D Graham
- Department of Respiratory Medicine, Cork University Hospital, Cork, Ireland
| | - J McCarthy
- Department of Pathology, Cork University Hospital, Cork, Ireland
| | - L Burke
- Department of Pathology, Cork University Hospital, Cork, Ireland
| | - D Power
- Department of Medical Oncology, Cork University Hospital, Mercy University Hospital Cork, University Hospital Kerry, Tralee, County Kerry, Ireland
| | - S O'Reilly
- Department of Medical Oncology, Cork University Hospital, Mercy University Hospital Cork, University Hospital Kerry, Tralee, County Kerry, Ireland
| | - R M Bambury
- Department of Medical Oncology, Cork University Hospital, Mercy University Hospital Cork, University Hospital Kerry, Tralee, County Kerry, Ireland
| | - D O Mahony
- Department of Medical Oncology, Cork University Hospital, Mercy University Hospital Cork, University Hospital Kerry, Tralee, County Kerry, Ireland
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Omar S, Clarke R, Abdullah H, Brady C, Corry J, Winter H, Touzelet O, Power UF, Lundy F, McGarvey LPA, Cosby SL. Respiratory virus infection up-regulates TRPV1, TRPA1 and ASICS3 receptors on airway cells. PLoS One 2017; 12:e0171681. [PMID: 28187208 PMCID: PMC5302416 DOI: 10.1371/journal.pone.0171681] [Citation(s) in RCA: 64] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2016] [Accepted: 01/24/2017] [Indexed: 12/23/2022] Open
Abstract
Receptors implicated in cough hypersensitivity are transient receptor potential vanilloid 1 (TRPV1), transient receptor potential cation channel, Subfamily A, Member 1 (TRPA1) and acid sensing ion channel receptor 3 (ASIC3). Respiratory viruses, such as respiratory syncytial virus (RSV) and measles virus (MV) may interact directly and/or indirectly with these receptors on sensory nerves and epithelial cells in the airways. We used in vitro models of sensory neurones (SHSY5Y or differentiated IMR-32 cells) and human bronchial epithelium (BEAS-2B cells) as well as primary human bronchial epithelial cells (PBEC) to study the effect of MV and RSV infection on receptor expression. Receptor mRNA and protein levels were examined by qPCR and flow cytometry, respectively, following infection or treatment with UV inactivated virus, virus-induced soluble factors or pelleted virus. Concentrations of a range of cytokines in resultant BEAS-2B and PBEC supernatants were determined by ELISA. Up-regulation of TRPV1, TRPA1 and ASICS3 expression occurred by 12 hours post-infection in each cell type. This was independent of replicating virus, within the same cell, as virus-induced soluble factors alone were sufficient to increase channel expression. IL-8 and IL-6 increased in infected cell supernatants. Antibodies against these factors inhibited TRP receptor up-regulation. Capsazepine treatment inhibited virus induced up-regulation of TRPV1 indicating that these receptors are targets for treating virus-induced cough.
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Affiliation(s)
- Shadia Omar
- Queen’s University Belfast, Centre for Experimental Medicine, School of Medicine, Dentistry and Biomedical Sciences, Medical Biology Centre, Belfast, United Kingdom
| | - Rebecca Clarke
- Queen’s University Belfast, Centre for Experimental Medicine, School of Medicine, Dentistry and Biomedical Sciences, Medical Biology Centre, Belfast, United Kingdom
| | - Haniah Abdullah
- Queen’s University Belfast, Centre for Experimental Medicine, School of Medicine, Dentistry and Biomedical Sciences, Medical Biology Centre, Belfast, United Kingdom
| | - Clare Brady
- Queen’s University Belfast, Centre for Experimental Medicine, School of Medicine, Dentistry and Biomedical Sciences, Medical Biology Centre, Belfast, United Kingdom
| | - John Corry
- Queen’s University Belfast, Centre for Experimental Medicine, School of Medicine, Dentistry and Biomedical Sciences, Medical Biology Centre, Belfast, United Kingdom
| | - Hanagh Winter
- Queen’s University Belfast, Centre for Experimental Medicine, School of Medicine, Dentistry and Biomedical Sciences, Medical Biology Centre, Belfast, United Kingdom
| | - Olivier Touzelet
- Queen’s University Belfast, Centre for Experimental Medicine, School of Medicine, Dentistry and Biomedical Sciences, Medical Biology Centre, Belfast, United Kingdom
| | - Ultan F. Power
- Queen’s University Belfast, Centre for Experimental Medicine, School of Medicine, Dentistry and Biomedical Sciences, Medical Biology Centre, Belfast, United Kingdom
| | - Fionnuala Lundy
- Queen’s University Belfast, Centre for Experimental Medicine, School of Medicine, Dentistry and Biomedical Sciences, Medical Biology Centre, Belfast, United Kingdom
| | - Lorcan P. A. McGarvey
- Queen’s University Belfast, Centre for Experimental Medicine, School of Medicine, Dentistry and Biomedical Sciences, Medical Biology Centre, Belfast, United Kingdom
| | - S. Louise Cosby
- Queen’s University Belfast, Centre for Experimental Medicine, School of Medicine, Dentistry and Biomedical Sciences, Medical Biology Centre, Belfast, United Kingdom
- * E-mail:
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Mullally WJ, O'Súilleabháin CB, Brady C, O'Reilly S. Vinorelbine induced perforation of a metastatic gastric lesion. Ir J Med Sci 2016; 186:571-575. [PMID: 28039597 PMCID: PMC5550518 DOI: 10.1007/s11845-016-1536-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [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] [Received: 07/18/2016] [Accepted: 12/21/2016] [Indexed: 12/30/2022]
Abstract
Background Breast carcinoma metastasis to the gastrointestinal tract is rare and more frequently associated with lobular than ductal carcinoma (Borst and Ingold, Surg 114(4):637–641 [1]). The purpose of this article is to present a case based review of a unique gastrointestinal metastasis and literature review. Methods A 46 year old lady with metastatic invasive ductal breast cancer was admitted to A&E with sudden onset of epigastric and left shoulder pain. She completed the first cycle of capecitabine/vinorelbine 1 week previously. Clinical examination revealed a tender epigastrium with rigidity in the upper abdomen. Free air under the diaphragm and a positive Rigler’s sign was radiologically identified. A laparoscopy demonstrated a fibrinous exudate in the left upper quadrant consistent with a walled off lesser curvature gastric perforation. A subsequent oesophagogastroduodenoscopy (OGD) demonstrated a healed gastric ulcer of benign appearance; however the pathology confirmed metastatic breast carcinoma. Results Literature review confirmed no previously reported cases of vinorelbine induced gastric perforation. Four cases of metastatic breast cancer with gastric metastasis presenting with perforation were identified; three of these cases (Fra et al., Presse Med 25(26):1215 (1996) [2], Solis-Caxaj et al., Gastroenterol Clin Biol 28(1):91–92 (2004) [3], Ghosn et al., Bull Cancer 78(11):1071–1073 (1991) [4]), were in the French medical literature, including one male patient (Fra et al., Presse Med 25(26):1215 (1996) [2]) and at least one ductal breast carcinoma (Solis-Caxaj et al., Gastroenterol Clin Biol 28(1):91–92 (2004) [3]). The fourth case (van Geel et al., Ned Tijdschr Geneeskd 144(37):1761–1763 (2000) [5]), was in the Dutch medical literature and a lobular breast carcinoma. Conclusion This case represents a rare complication of breast cancer chemotherapy, the subsequent significant benefit the patient received from treatment is consistent with the chemosensitivity to therapy that also resulted in gastric perforation. Five years after gastric perforation she resumed palliative chemotherapy after progression on sequential hormonal therapies.
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Affiliation(s)
- W J Mullally
- Department of Medical Oncology, Cork University Hospital, Wilton Rd, Cork, Ireland. .,, Kells, Bishopstown Avenue West, Model Farm Rd, Cork, Ireland.
| | - C B O'Súilleabháin
- Hepatobiliary Pancreas Unit, Mercy University Hospital, Grenville Place, Cork, Ireland
| | - C Brady
- Department of Medical Oncology, Cork University Hospital, Wilton Rd, Cork, Ireland
| | - S O'Reilly
- Department of Medical Oncology, Cork University Hospital, Wilton Rd, Cork, Ireland
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Hou L, Vierra-Green C, Lazaro A, Brady C, Haagenson M, Spellman S, Hurley CK. Limited HLA sequence variation outside of antigen recognition domain exons of 360 10 of 10 matched unrelated hematopoietic stem cell transplant donor-recipient pairs. HLA 2016; 89:39-46. [PMID: 27976839 DOI: 10.1111/tan.12942] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [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: 08/26/2016] [Revised: 10/24/2016] [Accepted: 11/17/2016] [Indexed: 12/27/2022]
Abstract
Traditional DNA-based typing focuses primarily on interrogating the exons of human leukocyte antigen (HLA) genes that form the antigen recognition domain (ARD). The relevance of mismatching donor and recipient for HLA variation outside the ARD on hematopoietic stem cell transplantation (HSCT) outcomes is unknown. This study was designed to evaluate the frequency of variation outside the ARD in 10 of 10 (HLA-A, -B, -C, -DRB1, -DQB1) matched unrelated donor transplant pairs (n = 360). Next-generation DNA sequencing was used to characterize both HLA exons and introns for HLA-A, -B, -C alleles; exons 2, 3 and the intervening intron for HLA-DRB1 and exons only for HLA-DQA1 and -DQB1. Over 97% of alleles at each locus were matched for their nucleotide sequence outside of the ARD exons. Of the 4320 allele comparisons overall, only 17 allele pairs were mismatched for non-ARD exons, 41 for noncoding regions and 9 for ARD exons. The observed variation between donor and recipient usually involved a single nucleotide difference (88% of mismatches); 88% of the non-ARD exon variants impacted the amino acid sequence. The impact of amino acid sequence variation caused by substitutions in exons outside ARD regions in D-R pairs will be difficult to assess in HSCT outcome studies because these mismatches do not occur very frequently.
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Affiliation(s)
- L Hou
- Department of Pediatrics, Georgetown University, Washington, DC, USA
| | - C Vierra-Green
- Center for International Blood and Marrow Transplant Research, Minneapolis, MN, USA
| | - A Lazaro
- Department of Pediatrics, Georgetown University, Washington, DC, USA
| | - C Brady
- Center for International Blood and Marrow Transplant Research, Minneapolis, MN, USA
| | - M Haagenson
- Center for International Blood and Marrow Transplant Research, Minneapolis, MN, USA
| | - S Spellman
- Center for International Blood and Marrow Transplant Research, Minneapolis, MN, USA
| | - C K Hurley
- Department of Pediatrics, Georgetown University, Washington, DC, USA.,Department of Oncology, Georgetown University, Washington, DC, USA
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Freed B, Semaan E, Benefield B, Spottiswoode B, Brady C, Allen B, Shah S, Carr J, Markl M, Collins J. Right Ventricular T1 Mapping: A Feasibility Study. J Heart Lung Transplant 2016. [DOI: 10.1016/j.healun.2016.01.783] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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Brady C, Bambury RM, O'Reilly S. Empathy and the wounded healer: a mixed-method study of patients and doctors views on empathy. Ir Med J 2015; 108:125-126. [PMID: 26016309] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Empathy is increasingly being recognized as a crucial component for an effective doctor-patient relationship. Using a mixed method approach, we surveyed 125 patients and 361 medical practitioners (doctors and medical students) views of the doctor-patient relationship. We qualitatively assessed patients' views of what constituted a good doctor and qualitatively measured empathy using a validated scale in medical practitioners. Patients desire a doctor that is both clinically proficient 66 (55%) and caring 32 (27%). Doctors who have a personal experience of illness have a statistically higher empathy score. These doctors may be well placed to help develop and foster empathy in our profession.
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Hicks CAE, Barker EN, Brady C, Stokes CR, Helps CR, Tasker S. Non-ribosomal phylogenetic exploration of Mollicute species: new insights into haemoplasma taxonomy. Infect Genet Evol 2014; 23:99-105. [PMID: 24518692 PMCID: PMC3988868 DOI: 10.1016/j.meegid.2014.02.001] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/20/2014] [Accepted: 02/01/2014] [Indexed: 11/29/2022]
Abstract
The first gapA and dnaK phylogenetic analysis of Mollicute species. Analysis includes a wide range of haemoplasmas species. Analysis supports that haemoplasmas reside within a single clade. Evidence of phylogenetic distance between the haemoplasmas and Mycoplasma species.
Nine species of uncultivable haemoplasmas and several Mycoplasma species were examined by partial sequencing of two protein-encoding housekeeping genes. Partial glyceraldehyde-3-phosphate dehydrogenase (gapA) and heat shock protein 70 (dnaK) gene sequences were determined for these Mollicute species; in total nine gapA sequences and ten dnaK sequences were obtained. Phylogenetic analyses of these sequences, along with those of a broad selection of Mollicute species downloaded from GenBank, for the individual genes, and for the gapA and dnaK concatenated data set, revealed a clear separation of the haemoplasmas from other species within the Mycoplasma genus; indeed the haemoplasmas resided within a single clade which was phylogenetically detached from the pneumoniae group of Mycoplasmas. This is the first report to examine the use of gapA and dnaK, as well as a concatenated data set, for phylogenetic analysis of the haemoplasmas and other Mollicute species. These results demonstrate a distinct phylogenetic separation between the haemoplasmas and Mycoplasmas that corresponds with the biological differences observed in these species, indicating that further evaluation of the haemoplasmas’ relationship with the Mycoplasma genus is required to determine whether reclassification of the haemoplasmas is necessary.
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Affiliation(s)
- C A E Hicks
- School of Veterinary Sciences, University of Bristol, Langford BS40 5DU, United Kingdom.
| | - E N Barker
- School of Veterinary Sciences, University of Bristol, Langford BS40 5DU, United Kingdom
| | - C Brady
- Department of Applied Sciences, University of the West of England, Frenchay Campus, Coldharbour Lane, Bristol BS16 1QY, United Kingdom
| | - C R Stokes
- School of Veterinary Sciences, University of Bristol, Langford BS40 5DU, United Kingdom
| | - C R Helps
- School of Veterinary Sciences, University of Bristol, Langford BS40 5DU, United Kingdom
| | - S Tasker
- School of Veterinary Sciences, University of Bristol, Langford BS40 5DU, United Kingdom
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Abdullah H, Brankin B, Brady C, Cosby SL. Wild-type measles virus infection upregulates poliovirus receptor-related 4 and causes apoptosis in brain endothelial cells by induction of tumor necrosis factor-related apoptosis-inducing ligand. J Neuropathol Exp Neurol 2013; 72:681-96. [PMID: 23771216 DOI: 10.1097/nen.0b013e31829a26b6] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.5] [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: 12/18/2022] Open
Abstract
Small numbers of brain endothelial cells (BECs) are infected in children with neurologic complications of measles virus (MV) infection. This may provide a mechanism for virus entry into the central nervous system, but the mechanisms are unclear. Both in vitro culture systems and animal models are required to elucidate events in the endothelium. We compared the ability of wild-type (WT), vaccine, and rodent-adapted MV strains to infect, replicate, and induce apoptosis in human and murine brain endothelial cells (HBECs and MBECs, respectively). Mice also were infected intracerebrally. All MV stains productively infected HBECs and induced the MV receptor PVRL4. Efficient WT MV production also occurred in MBECs. Extensive monolayer destruction associated with activated caspase 3 staining was observed in HBECs and MBECs, most markedly with WT MV. Tumor necrosis factor-related apoptosis-inducing ligand (TRAIL), but not Fas ligand, was induced by MV infection. Treatment of MBECs with supernatants from MV-infected MBEC cultures with an anti-TRAIL antibody blocked caspase 3 expression and monolayer destruction. TRAIL was also expressed in the endothelium and other cell types in infected murine brains. This is the first demonstration that infection of low numbers of BECs with WT MV allows efficient virus production, induction of TRAIL, and subsequent widespread apoptosis.
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Affiliation(s)
- Hani'ah Abdullah
- From the Centre for Infection and Immunity (HA, CB, SLC), School of Medicine Dentistry and Biomedical Sciences, Queen's University Belfast, UK; and School of Biological Sciences (BB), Dublin Institute of Technology, Dublin, Ireland
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26
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Martin S, Lamb HK, Brady C, Lefkove B, Bonner MY, Thompson P, Lovat PE, Arbiser JL, Hawkins AR, Redfern CPF. Inducing apoptosis of cancer cells using small-molecule plant compounds that bind to GRP78. Br J Cancer 2013; 109:433-43. [PMID: 23807168 PMCID: PMC3721410 DOI: 10.1038/bjc.2013.325] [Citation(s) in RCA: 70] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/23/2013] [Revised: 05/30/2013] [Accepted: 06/04/2013] [Indexed: 02/07/2023] Open
Abstract
Background: Glucose regulated protein 78 (GRP78) functions as a sensor of endoplasmic reticulum (ER) stress. The aim of this study was to test the hypothesis that molecules that bind to GRP78 induce the unfolded protein response (UPR) and enhance cell death in combination with ER stress inducers. Methods: Differential scanning calorimetry (DSC), measurement of cell death by flow cytometry and the induction of ER stress markers using western blotting. Results: Epigallocatechin gallate (EGCG), a flavonoid component of Green Tea Camellia sinensis, and honokiol (HNK), a Magnolia grandiflora derivative, bind to unfolded conformations of the GRP78 ATPase domain. Epigallocatechin gallate and HNK induced death in six neuroectodermal tumour cell lines tested. Levels of death to HNK were twice that for EGCG; half-maximal effective doses were similar but EGCG sensitivity varied more widely between cell types. Honokiol induced ER stress and UPR as predicted from its ability to interact with GRP78, but EGCG was less effective. With respect to cell death, HNK had synergistic effects on melanoma and glioblastoma cells with the ER stress inducers fenretinide or bortezomib, but only additive (fenretinide) or inhibitory (bortezomib) effects on neuroblastoma cells. Conclusion: Honokiol induces apoptosis due to ER stress from an interaction with GRP78. The data are consistent with DSC results that suggest that HNK binds to GRP78 more effectively than EGCG. Therefore, HNK may warrant development as an antitumour drug.
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Affiliation(s)
- S Martin
- Newcastle Cancer Centre at the Northern Institute for Cancer Research, Medical School, Newcastle University, Newcastle upon Tyne, UK
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Good DW, Khan N, Kiely E, Brady C. The impact of rolling theatre closures on core urology training. Ir Med J 2013; 106:149-151. [PMID: 23914579] [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: 06/02/2023]
Abstract
Since 2008, government funding of the Health Service Executive (HSE) has decreased significantly. Our hospital, Cork University Hospital (CUH), implemented "cost saving" measures including scheduled operating theatre closures. We studied their affect on urological surgical activity at the hospital. A retrospective review was performed using theatre log books and theatre records to determine the number, type and training status of procedures performed for years 2009 and 2011. Scheduled theatre closures in 2011 resulted in 33 more theatre session cancelations compared to 2009. There was a reduction in the total number of procedures performed from 555 cases in 2009 to 443 in 2011 a 20.2(%) reduction. The number of "training" cases reduced from 325 (58.9%) in 2009 to 216 (48.7%) in 2011 a 10.2% reduction (Table 2). Eight out of the nine "core urology training" procedures reduced in number from 2009 to 2011 (Table 1). We have shown that scheduled theatre closures have reduced the number of procedures performed and have impacted on urology training. Scheduled theatre closures are expected to become more frequent in the future. Potential solutions to lessen the impact include providing simulation training using the Royal College of Surgeons in Ireland (RCSI) mobile skills unit during these theatre closures.
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Affiliation(s)
- D W Good
- Department of Urology, Cork University Hospital, Wilton, Cork.
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Marques P, O’ Donovan J, Williams E, Gutierrez J, Worrall S, McElroy M, Proctor A, Brady C, Sammin D, Bassett H, Buxton D, Maley S, Markey B, Nally J. Detection of Toxoplasma gondii antigens reactive with antibodies from serum, amniotic, and allantoic fluids from experimentally infected pregnant ewes. Vet Parasitol 2012; 185:91-100. [DOI: 10.1016/j.vetpar.2011.10.028] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/15/2011] [Revised: 10/12/2011] [Accepted: 10/19/2011] [Indexed: 10/15/2022]
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O’Donovan J, Proctor A, Gutierrez J, Worrell S, Nally J, Marques P, Brady C, McElroy M, Sammin D, Buxton D, Maley S, Bassett H, Markey B. Distribution of Lesions in Fetal Brains Following Experimental Infection of Pregnant Sheep With Toxoplasma gondii. Vet Pathol 2011; 49:462-9. [DOI: 10.1177/0300985811424732] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Six ovine fetal brains were harvested 33 to 35 days postchallenge from 5 ewes, each of which was given 3000 Toxoplasma gondii oocysts on day 90 of pregnancy. Histopathologic examination of transverse sections taken at 13 levels in the fetal brains revealed the presence of toxoplasmosis-related lesions in all 6 brains. However, lesions were not randomly distributed ( P = .007); they were most numerous at the level of the optic tract, the rostral margin of the pons, and 4 mm caudal to the ansate sulcus and were absent in all sections at the level of the caudal cerebellum. Lesion distribution may be due to hemodynamic factors, differences in the expression of endothelial surface receptor molecules at the level of the blood-brain barrier, or the presence of localized permissive/inhibitory factors within the brain. The results have implications for the selection of areas of brain from aborted ovine fetuses to be examined histopathologically for laboratory diagnosis.
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Affiliation(s)
- J. O’Donovan
- Regional Veterinary Laboratory, Department of Agriculture, Fisheries, and Food, Athlone, Ireland
| | - A. Proctor
- School of Agriculture, Food Science and Veterinary Medicine, University College Dublin, Dublin, Ireland
| | - J. Gutierrez
- School of Agriculture, Food Science and Veterinary Medicine, University College Dublin, Dublin, Ireland
| | - S. Worrell
- School of Agriculture, Food Science and Veterinary Medicine, University College Dublin, Dublin, Ireland
| | - J. Nally
- School of Agriculture, Food Science and Veterinary Medicine, University College Dublin, Dublin, Ireland
| | - P. Marques
- School of Agriculture, Food Science and Veterinary Medicine, University College Dublin, Dublin, Ireland
| | - C. Brady
- Central Veterinary Research Laboratory, Department of Agriculture, Fisheries, and Food, Celbridge, Ireland
| | - M. McElroy
- Central Veterinary Research Laboratory, Department of Agriculture, Fisheries, and Food, Celbridge, Ireland
| | - D. Sammin
- Central Veterinary Research Laboratory, Department of Agriculture, Fisheries, and Food, Celbridge, Ireland
| | - D. Buxton
- Moredun Research Institute, Pentland Science Park, Edinburgh, Scotland
| | - S. Maley
- Moredun Research Institute, Pentland Science Park, Edinburgh, Scotland
| | - H. Bassett
- School of Agriculture, Food Science and Veterinary Medicine, University College Dublin, Dublin, Ireland
| | - B. Markey
- School of Agriculture, Food Science and Veterinary Medicine, University College Dublin, Dublin, Ireland
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Gutierrez J, O’Donovan J, Williams E, Proctor A, Brady C, Marques P, Worrall S, Nally J, McElroy M, Bassett H, Sammin D, Buxton D, Maley S, Markey B. Detection and quantification of Toxoplasma gondii in ovine maternal and foetal tissues from experimentally infected pregnant ewes using real-time PCR. Vet Parasitol 2010; 172:8-15. [DOI: 10.1016/j.vetpar.2010.04.035] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2010] [Revised: 04/19/2010] [Accepted: 04/27/2010] [Indexed: 11/17/2022]
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Kalathingal SM, Shrout MK, Comer C, Brady C. Rating the extent of surface scratches on photostimulable storage phosphor plates in a dental school environment. Dentomaxillofac Radiol 2010; 39:179-83. [PMID: 20203281 DOI: 10.1259/dmfr/28972644] [Citation(s) in RCA: 16] [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: 01/28/2023] Open
Abstract
OBJECTIVE The aims of this study were (1) to subjectively quantify the degree of scratching and smudging that had taken place in the junior clinic in the 9 months following the implementation of digital radiology; (2) to compare the findings with a previously published report; and (3) to identify areas in the protocol and training that can be refined to minimize future scratching and smudging. METHODS Seven sets of blank clinical photostimulable storage phosphor (PSP) plates were scanned after exposing them at 65 kV and 7 mA for 0.80 s. Scanned plates were lightly wiped with a soft cloth and alcohol, repackaged in plastic sleeves, re-exposed and rescanned. The two sets of resulting images were subjectively rated independently by two investigators for artefacts and placed in five categories. RESULTS Of all the images, approximately 75% were rated in the top 3 categories (most readable), leaving 17% and 8% in the poor and unsatisfactory categories, respectively. Mean rated values of the two image sets (before and after wiping) were not statistically different, but ratings slightly improved after cleaning the plates. CONCLUSIONS Wiping all plates to remove surface contamination may not always be necessary or desirable. Systems that are designed to minimize handling of the plates may help minimize scratching of them.
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Affiliation(s)
- S M Kalathingal
- Oral Diagnosis and Patient Services, School of Dentistry, Medical College of Georgia, Augusta, Georgia 30912-1241, USA.
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Parsons C, McCoy CP, Gorman SP, Jones DS, Bell SE, Brady C, McGlinchey SM. Anti-infective photodynamic biomaterials for the prevention of intraocular lens-associated infectious endophthalmitis. Biomaterials 2009; 30:597-602. [DOI: 10.1016/j.biomaterials.2008.10.015] [Citation(s) in RCA: 70] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/12/2008] [Accepted: 10/21/2008] [Indexed: 12/21/2022]
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Brady C, O'Grady D, O'Meara F, Egan J, Bassett H. Relationships between clinical signs, pathological changes and tissue distribution of Mycobacterium avium subspecies paratuberculosis in 21 cows from herds affected by Johne's disease. Vet Rec 2008; 162:147-52. [PMID: 18245746 DOI: 10.1136/vr.162.5.147] [Citation(s) in RCA: 28] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Twenty-one cows from eight herds affected by Johne's disease were assigned to four groups: seven were not thriving and had persistent diarrhoea, six were not thriving and had intermittent diarrhoea, four were not thriving but did not have diarrhoea, and four were clinically normal. Postmortem, macroscopic lesions consistent with Johne's disease were identified in 17 of the cows and Mycobacterium avium subspecies paratuberculosis (MAP) was isolated from all of them. However, except for the fact that diarrhoea was correlated with the presence of lesions in the large intestine there was little correlation between the presence or absence of clinical signs and the lesions associated with Johne's disease. The tissue distribution of MAP was also poorly correlated with either the clinical signs or the lesions. The organism was widely distributed in 17 of the 21 cows, including three of the clinically normal animals, and was present in the mammary tissues of seven cows including two of the clinically normal animals. Three distinct histopathological patterns were observed in the affected intestines: infiltration of the lamina propria with giant cells, tuberculoid lesions, and lepromatous lesions; the lepromatous lesions were associated with extensive pathological changes.
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Affiliation(s)
- C Brady
- Central Veterinary Research Laboratory, Abbotstown, Castleknock, Dublin 15, Ireland
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Brady C, Brown M, Foley L, Cullen R, Yang S, Halet M, Spellman S. 7-OR: Results of the prospective cord blood high resolution typing project. Hum Immunol 2008. [DOI: 10.1016/j.humimm.2008.08.008] [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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Henry W, Coates CG, Brady C, Ronayne KL, Matousek P, Towrie M, Botchway SW, Parker AW, Vos JG, Browne WR, McGarvey JJ. The Early Picosecond Photophysics of Ru(II) Polypyridyl Complexes: A Tale of Two Timescales. J Phys Chem A 2008. [DOI: 10.1021/jp804511t] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Henry W, Coates CG, Brady C, Ronayne KL, Matousek P, Towrie M, Botchway SW, Parker AW, Vos JG, Browne WR, McGarvey JJ. The Early Picosecond Photophysics of Ru(II) Polypyridyl Complexes: A Tale of Two Timescales. J Phys Chem A 2008; 112:4537-44. [DOI: 10.1021/jp711873s] [Citation(s) in RCA: 80] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- William Henry
- National Centre for Sensors Research, Dublin City University, Dublin 9, Ireland, School of Chemistry & Chemical Engineering, Queen’s University Belfast, Belfast BT9 5AG, Northern Ireland, U.K., Central Laser Facility, Science & Technology Facilities Council, Rutherford Appleton Laboratory, Chilton, Didcot, Oxfordshire, OX11 0QX, U.K., and Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747AG Groningen, The Netherlands
| | - Colin G. Coates
- National Centre for Sensors Research, Dublin City University, Dublin 9, Ireland, School of Chemistry & Chemical Engineering, Queen’s University Belfast, Belfast BT9 5AG, Northern Ireland, U.K., Central Laser Facility, Science & Technology Facilities Council, Rutherford Appleton Laboratory, Chilton, Didcot, Oxfordshire, OX11 0QX, U.K., and Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747AG Groningen, The Netherlands
| | - Clare Brady
- National Centre for Sensors Research, Dublin City University, Dublin 9, Ireland, School of Chemistry & Chemical Engineering, Queen’s University Belfast, Belfast BT9 5AG, Northern Ireland, U.K., Central Laser Facility, Science & Technology Facilities Council, Rutherford Appleton Laboratory, Chilton, Didcot, Oxfordshire, OX11 0QX, U.K., and Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747AG Groningen, The Netherlands
| | - Kate L. Ronayne
- National Centre for Sensors Research, Dublin City University, Dublin 9, Ireland, School of Chemistry & Chemical Engineering, Queen’s University Belfast, Belfast BT9 5AG, Northern Ireland, U.K., Central Laser Facility, Science & Technology Facilities Council, Rutherford Appleton Laboratory, Chilton, Didcot, Oxfordshire, OX11 0QX, U.K., and Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747AG Groningen, The Netherlands
| | - Pavel Matousek
- National Centre for Sensors Research, Dublin City University, Dublin 9, Ireland, School of Chemistry & Chemical Engineering, Queen’s University Belfast, Belfast BT9 5AG, Northern Ireland, U.K., Central Laser Facility, Science & Technology Facilities Council, Rutherford Appleton Laboratory, Chilton, Didcot, Oxfordshire, OX11 0QX, U.K., and Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747AG Groningen, The Netherlands
| | - Michael Towrie
- National Centre for Sensors Research, Dublin City University, Dublin 9, Ireland, School of Chemistry & Chemical Engineering, Queen’s University Belfast, Belfast BT9 5AG, Northern Ireland, U.K., Central Laser Facility, Science & Technology Facilities Council, Rutherford Appleton Laboratory, Chilton, Didcot, Oxfordshire, OX11 0QX, U.K., and Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747AG Groningen, The Netherlands
| | - Stanley W. Botchway
- National Centre for Sensors Research, Dublin City University, Dublin 9, Ireland, School of Chemistry & Chemical Engineering, Queen’s University Belfast, Belfast BT9 5AG, Northern Ireland, U.K., Central Laser Facility, Science & Technology Facilities Council, Rutherford Appleton Laboratory, Chilton, Didcot, Oxfordshire, OX11 0QX, U.K., and Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747AG Groningen, The Netherlands
| | - Anthony W. Parker
- National Centre for Sensors Research, Dublin City University, Dublin 9, Ireland, School of Chemistry & Chemical Engineering, Queen’s University Belfast, Belfast BT9 5AG, Northern Ireland, U.K., Central Laser Facility, Science & Technology Facilities Council, Rutherford Appleton Laboratory, Chilton, Didcot, Oxfordshire, OX11 0QX, U.K., and Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747AG Groningen, The Netherlands
| | - Johannes G. Vos
- National Centre for Sensors Research, Dublin City University, Dublin 9, Ireland, School of Chemistry & Chemical Engineering, Queen’s University Belfast, Belfast BT9 5AG, Northern Ireland, U.K., Central Laser Facility, Science & Technology Facilities Council, Rutherford Appleton Laboratory, Chilton, Didcot, Oxfordshire, OX11 0QX, U.K., and Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747AG Groningen, The Netherlands
| | - Wesley R. Browne
- National Centre for Sensors Research, Dublin City University, Dublin 9, Ireland, School of Chemistry & Chemical Engineering, Queen’s University Belfast, Belfast BT9 5AG, Northern Ireland, U.K., Central Laser Facility, Science & Technology Facilities Council, Rutherford Appleton Laboratory, Chilton, Didcot, Oxfordshire, OX11 0QX, U.K., and Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747AG Groningen, The Netherlands
| | - John J. McGarvey
- National Centre for Sensors Research, Dublin City University, Dublin 9, Ireland, School of Chemistry & Chemical Engineering, Queen’s University Belfast, Belfast BT9 5AG, Northern Ireland, U.K., Central Laser Facility, Science & Technology Facilities Council, Rutherford Appleton Laboratory, Chilton, Didcot, Oxfordshire, OX11 0QX, U.K., and Stratingh Institute for Chemistry, University of Groningen, Nijenborgh 4, 9747AG Groningen, The Netherlands
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Arce-Lara CE, Cataland S, Brady C, Kraut E, Otterson G, Villalona-Calero M, Bekaii-Saab T. A single center review of the experience with mitomycin C (MMC) and the risk of thrombotic thrombocytopenic purpura (TTP)/hemolytic uremic syndrome (HUS). J Clin Oncol 2007. [DOI: 10.1200/jco.2007.25.18_suppl.15167] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
15167 Background: MMC related TTP/HUS has been reported between 4 and 15%, with a higher incidence in patients receiving cumulative doses of 60 mg or higher. It tends to occur within 4 months of drug administration independently of patients’ cancer status. The ability of MMC to upregulate enzymes relevant for new cytototoxic agents (topoisomerase I for CPT-11 and thymidine phosphorylase for capecitabine) make phamacobiologically based therapeutic combinations including MMC attractive. Methods: All patients (n=100) that participated in four institutional clinical studies from 2000 through 2004 were included. The studies were OSU 9947 (phase I trial of CPT-11 and MMC in solid tumors, n=31) OSU 0151 (phase II trial of CPT-11 and MMC in advanced esophageal and stomach cancer, n=41) OSU 0155 (phase II trial of CPT-11 and MMC in patients with refractory breast cancer, n=26) OSU 0330 (phase I study of capecitabine and MMC in patients with advanced GI tumors n=2). In each study, the maximum cumulative dose of MMC was 36 mg/m2. All patients were followed for clinical signs or symptoms of TTP/HUS including the presence of anemia, thrombocytopenia and renal insufficiency and had a thorough review of the peripheral smear. Results: The median cumulative dose was 12 mg/m2 (range 3–36 mg/m2). No patients met the clinical diagnosis of TTP/HUS except for one patient had anemia, thrombocytopenia and renal insufficiency but did not manifest any other findings consistent with TTP/HUS such as changes in mental status, azotemia or any other clinical symptom. The laboratory abnormalities resolved without intervention within seven days with subsequent continuation on the clinical trial. Conclusions: In this study we have demonstrated that by capping the cumulative dose of MMC to 36 mg/m2, the incidence of TTP/HUS is minimal. Furthermore, our preliminary analysis of an additional 100 patients treated with MMC at OSU shows no reported cases of TTP/HUS (additional data will be presented at the meeting). Since MMC is effective in a wide variety of solid tumors including breast, lung and GI malignancies and is inexpensive and easy to administer, further exploration of MMC in the treatment of solid malignancies is indicated including rational combination studies. No significant financial relationships to disclose.
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Affiliation(s)
| | - S. Cataland
- The Ohio State University Medical Center, Columbus, OH
| | - C. Brady
- The Ohio State University Medical Center, Columbus, OH
| | - E. Kraut
- The Ohio State University Medical Center, Columbus, OH
| | - G. Otterson
- The Ohio State University Medical Center, Columbus, OH
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Brady C, Bell SEJ, Parsons C, Gorman SP, Jones DS, McCoy CP. Novel Porphyrin-Incorporated Hydrogels for Photoactive Intraocular Lens Biomaterials. J Phys Chem B 2007; 111:527-34. [PMID: 17228910 DOI: 10.1021/jp066217i] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.4] [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: 11/30/2022]
Abstract
Novel surface-modified hydrogel materials have been prepared by binding charged porphyrins TMPyP (tetrakis(4-N-methylpyridyl)porphyrin) and TPPS (tetrakis(4-sulfonatophenyl)porphyrin) to copolymers of HEMA (2-hydroxyethyl methacrylate) with either MAA (methacrylic acid) or DEAEMA (2-(diethylamino)ethyl methacrylate). The charged hydrogels display strong electrostatic interactions with the appropriate cationic or anionic porphyrins to give materials which are intended to be used to generate cytotoxic singlet oxygen (1O2) on photoexcitation and can therefore be used to reduce postoperative infection of the intraocular hydrogel-based replacement lenses that are used in cataract surgery. The UV/vis spectra of TMPyP in MAA:HEMA copolymers showed a small shift in the Soret band and a change from single exponential (161 micros) triplet decay lifetime in solution to a decay that could be fitted to a biexponential fit with two approximately equal components with tau = 350 and 1300 micros. O2 bubbling reduced the decay to a dominant (90%) component with a much reduced lifetime of 3 micros and a minor, longer lived (20 micros) component. With D2O solvent the 1O2 lifetime was measured by 1270 nm fluorescence as 35 micros in MAA:HEMA, compared to 67 mus in solution, although absorbance-matched samples showed similar yield of 1O2 in the polymers and in aqueous solution. In contrast to the minor perturbation in photophysical properties caused by binding TMPyP to MAA:HEMA, TPPS binding to DEAEMA:HEMA copolymers profoundly changed the 1O2 generating ability of the TPPS. In N2-bubbled samples, the polymer-bound TPPS behaved in a similar manner to TMPyP in its copolymer host; however, O2 bubbling had only a very small effect on the triplet lifetime and no 1O2 generation could be detected. The difference in behavior may be linked to differences in binding in the two systems. With TMPyP in MAA:HEMA, confocal fluorescence microscopy showed significant penetration of the porphyrin into the core of the polymer film samples (>150 microm). However, for TPPS in DEAEMA:HEMA copolymers, although the porphyrin bound much more readily to the polymer, it remained localized in the first 20 microm, even in heavily loaded samples. It is possible that the resulting high concentration of TPPS may have cross-linked the hydrogels to such an extent that it significantly reduced the solubility and/or diffusion rate of oxygen into the doped polymers. This effect is significant since it demonstrates that even simple electrostatic binding of charged porphyrins to hydrogels can have an unexpectedly large effect on the properties of the system as a whole. In this case it makes the apparently promising TPPS/DEAEMA:HEMA system a poor candidate for clinical application as a postoperative antibacterial treatment for intraocular lenses while the apparently equivalent cationic system TMPyP/MAA:HEMA displays all the required properties.
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Affiliation(s)
- Clare Brady
- School of Chemistry and Chemical Engineering, Queen's University of Belfast, David Keir Building, Belfast BT9 5AG, Northern Ireland
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Browne WR, Henry W, Passaniti P, Gandolfi MT, Ballardini R, O'Connor CM, Brady C, Coates CG, Vos JG, McGarvey JJ. Resonance Raman and lifetime studies on regioselectively deuteriated ruthenium(ii) polypyridyl complexes. Photochem Photobiol Sci 2007; 6:386-96. [PMID: 17404633 DOI: 10.1039/b613471h] [Citation(s) in RCA: 12] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Two series of ruthenium(II) polypyridyl complexes [Ru(bipy)(2)(phpytr)](+) and [Ru(bipy)(2)(phpztr)](+) (where Hphpytr = 2-(5-phenyl-1H-[1,2,4]triazol-3-yl)-pyridine and Hphpztr = 2-(5-phenyl-1H-[1,2,4]triazol-3-yl)-pyrazine) are examined by electrochemistry, UV/Vis, emission, resonance Raman, transient resonance Raman and transient absorption spectroscopy, in order to obtain a more comprehensive understanding of their excited state electronic properties. The interpretation of the results obtained is facilitated by the availability of several isotopologues of each of the complexes examined. For the pyridine-1,2,4-triazolato based complex the lowest emissive excited state is exclusively bipy based, however, for the pyrazine based complexes excited state localisation on particular ligands shows considerable solvent and pH dependency.
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Affiliation(s)
- Wesley R Browne
- National Centre for Sensor Research, School of Chemical Sciences, Dublin City University, Dublin 9, Ireland
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Brady C, McGarvey JJ, McCusker JK, Toftlund H, Hendrickson DN. Time-Resolved Relaxation Studies of Spin Crossover Systems in Solution. Top Curr Chem (Cham) 2006. [DOI: 10.1007/b95420] [Citation(s) in RCA: 62] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
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41
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Devine P, Brady C. Emerging solutions: Clinical trial informed consent collaborative model. J Clin Oncol 2005. [DOI: 10.1200/jco.2005.23.16_suppl.8228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- P. Devine
- Cancer Information & Support Network, Pleasanton, CA
| | - C. Brady
- Cancer Information & Support Network, Pleasanton, CA
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42
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Browne WR, Coates CG, Brady C, Matousek P, Towrie M, Botchway SW, Parker AW, Vos JG, McGarvey JJ. Isotope Effects on the Picosecond Time-Resolved Emission Spectroscopy of Tris(2,2‘-bipyridine)ruthenium (II) [J. Am. Chem. Soc. 2003, 125, 1706−1707]. J Am Chem Soc 2004. [DOI: 10.1021/ja040815y] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Ali SM, Demers LM, Leitzel K, Harvey HA, Clemens D, Mallinak N, Engle L, Chinchilli V, Costa L, Brady C, Seaman J, Lipton A. Baseline serum NTx levels are prognostic in metastatic breast cancer patients with bone-only metastasis. Ann Oncol 2004; 15:455-9. [PMID: 14998848 DOI: 10.1093/annonc/mdh089] [Citation(s) in RCA: 55] [Impact Index Per Article: 2.8] [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: 02/04/2023] Open
Abstract
BACKGROUND There is significant heterogeneity in survival of patients with metastatic breast cancer who have bone-only metastasis. We studied the correlation of serum N-telopeptide (NTx), a marker of bone resorption, and its correlation with clinical outcomes in patients with metastatic breast cancer with bone-only or bone plus soft tissue metastasis. PATIENTS AND METHODS Serum was taken from 250 metastatic breast cancer patients with bone-only or bone plus soft tissue metastasis who participated in two similar randomized studies of second-line hormone therapy. An enzyme-linked immunosorbent assay specific for NTx of type I bone collagen was used to detect serum levels. RESULTS Sixty patients (24%) had elevated serum NTx levels, using the mean + 2 standard deviations (26 nanomoles Bone Collagen Equivalents per liter) of healthy women as a cut-off. The median duration of clinical benefit was significantly shorter in the group with elevated serum NTx levels compared with the group that had normal serum NTx levels (P=0.0004). Time to progression (TTP) was also significantly shorter in the patients with elevated serum NTx at 139 days compared with 220 days (P=0.0006). Median survival was also significantly shorter in patients with elevated baseline serum NTx levels at 663 days compared with 941 days (P<0.0001). CONCLUSION In this study, breast cancer patients with bone-only or bone plus soft tissue metastasis and elevated serum NTx levels have a shorter duration of clinical benefit, TTP and overall survival.
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Affiliation(s)
- S M Ali
- VA Medical Center, Lebanon, PA 17042, USA.
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Brady C, Callaghan PL, Ciunik Z, Coates CG, Døssing A, Hazell A, McGarvey JJ, Schenker S, Toftlund H, Trautwein AX, Winkler H, Wolny JA. Molecular Structure and Vibrational Spectra of Spin-Crossover Complexes in Solution and Colloidal Media: Resonance Raman and Time-Resolved Resonance Raman Studies. Inorg Chem 2004; 43:4289-99. [PMID: 15236542 DOI: 10.1021/ic049809t] [Citation(s) in RCA: 41] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The spin-crossover system [Fe(btpa)](PF(6))(2) (btpa = N,N,N',N'-tetrakis(2-pyridylmethyl)-6,6'-bis(aminomethyl)-2,2'-bipyridine) and the predominantly low-spin species [Fe(b(bdpa))](PF(6))(2) ((b(bdpa) = N,N'-bis(benzyl)-N,N'-bis(2-pyridylmethyl)-6,6'-bis(aminomethyl)-2,2'-bipyridine) have been characterized by means of X-ray diffraction. The unit cell of [Fe(btpa)](PF(6))(2) contains two crystallographically independent molecules revealing octahedral low-spin and quasi-seven-coordinated high-spin structures. The unit cell of [Fe(b(bdpa))](PF(6))(2) contains two crystallographically independent molecules one of which corresponds to a low-spin structure, while the other reveals a disordering. On the basis of magnetic susceptibility and Mössbauer measurements, it has been proposed that this disorder involves low-spin and high-spin six-coordinated molecules. The structures of [Zn(btpa)](PF(6))(2) and [Ru(btpa)](PF(6))(2) have been determined also. Pulsed laser photoperturbation, coupled here with time-resolved resonance Raman spectroscopy (TR(3)), has been used to investigate, for the first time by this technique, the relaxation dynamics in solution on nanosecond and picosecond time scales of low-spin, LS ((1)A) --> high-spin, HS ((5)T) electronic spin-state crossover in these Fe(II) complexes. For the nanosecond experiments, use of a probe wavelength at 321 nm, falling within the pi-pi transition of the polypyridyl backbone of the ligands, enabled the investigation of vibrational modes of both LS and HS isomers, through coupling to spin-state-dependent angle changes of the backbone. Supplementary investigations of the spin-crossover (SCO) equilibrium in homogeneous solution and in colloidal media assisted the assignment of prominent features in the Raman spectra of the LS and HS isomers. The relaxation data from the nanosecond studies confirm and extend earlier spectrophotometric findings, (Schenker, S.; Stein, P. C.; Wolny, J. A.; Brady, C.; McGarvey, J. J.; Toftlund, H.; Hauser, A. Inorg. Chem. 2001, 40, 134), pointing to biphasic spin-state relaxation in the case of [Fe(btpa)](PF(6))(2) but monophasic in the case of [Fe(b(bdpa))](PF(6))(2). The picosecond results suggest an early process complete in 20 ps or less, which is common to both complexes and possibly includes vibrational relaxation in the initially formed (5)T(2) state.
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Affiliation(s)
- Clare Brady
- School of Chemistry, Queens University Belfast, Stranmillis Road, Belfast BT9 5AG, Northern Ireland
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Keyes TE, Evrard B, Vos JG, Brady C, McGarvey JJ, Jayaweera P. Electronic and photophysical properties of a novel phenol bound dinuclear ruthenium complex: evidence for a luminescent mixed valence stateElectronic supplementary information (ESI) available: Resonance Raman and ES MS spectra. See http://www.rsc.org/suppdata/dt/b4/b405114a/. Dalton Trans 2004:2341-6. [PMID: 15278128 DOI: 10.1039/b405114a] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A novel dinuclear ruthenium(II) complex bridged by dianionic bridge 3-(2-phenol)-5-(pyridin-2-yl)-1,2,4-triazole in which the ruthenium metal atoms are bound through N,N coordination to the pyridine and triazole and O,N coordination to the triazole and phenolate is described. The electrochemical, spectroscopic and photophysical behaviour of the dimer is compared with its associated N,N- and O,N-coordinated mononuclear complexes. The mixed valence complex was prepared electrochemically and a weak inter-valence charge transfer transition is observed which from Hush theory provides an electronic coupling matrix element of 666 cm(-1), suggesting the complex is weakly coupled and valence trapped. In its native state the dinuclear compound is essentially non-emissive but upon the oxidation of the O,N moiety luminescence from the complex is reversibly switched on at 0.3 V and reversibly switched off by application of 1.3 or 0 V. To our knowledge this is the first report of a luminescent mixed valence ruthenium complex.
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Affiliation(s)
- Tia E Keyes
- National Centre for Sensors Research, School of Chemical Sciences, Dublin City University, Glasnevin, Dublin 9, Ireland
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Lipton A, Leitzel K, Demers L, Harvey H, Ali S, Chaudri-Ross H, Wyld P, Brady C, Carney W. In Reply:. J Clin Oncol 2003. [DOI: 10.1200/jco.2003.99.187] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Affiliation(s)
- A. Lipton
- The M.S. Hershey Medical Center, Hershey, PA
| | - K. Leitzel
- The M.S. Hershey Medical Center, Hershey, PA
| | - L. Demers
- The M.S. Hershey Medical Center, Hershey, PA
| | - H.A. Harvey
- The M.S. Hershey Medical Center, Hershey, PA
| | | | | | - P. Wyld
- Novartis Pharma AG, Basel, Switzerland
| | - C. Brady
- Novartis Pharmaceutical Corp, East Hanover, NJ
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Lipton A, Ali SM, Leitzel K, Demers L, Harvey HA, Chaudri-Ross HA, Brady C, Wyld P, Carney W. Serum HER-2/neu and response to the aromatase inhibitor letrozole versus tamoxifen. J Clin Oncol 2003; 21:1967-72. [PMID: 12743150 DOI: 10.1200/jco.2003.09.098] [Citation(s) in RCA: 95] [Impact Index Per Article: 4.5] [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: 11/20/2022] Open
Abstract
PURPOSE To determine the effect of elevated serum HER-2/neu on the response of metastatic breast cancer patients to an aromatase inhibitor versus an antiestrogen. PATIENTS AND METHODS Five hundred sixty-two estrogen receptor-positive metastatic breast cancer patients were randomized to first-line hormone therapy with either letrozole or tamoxifen. An automated enzyme-linked immunosorbent assay was used to detect serum HER-2/neu. RESULTS For patients with normal serum HER-2/neu (70.5%), objective response rate (ORR; 39% in letrozole-treated patients v 26% in tamoxifen-treated patients; P =.008), clinical benefit (CB; 57% v 45%; P =.016), time to progression (TTP; median, 12.2 v 8.5 months; P =.0019), and time to treatment failure (TTF; median, 11.6 v 6.2 months; P =.0066) were significantly better in patients treated with letrozole. In the elevated HER-2/neu group (29.5%), there was no significant difference in ORR (17% in letrozole-treated patients v 13% in tamoxifen-treated patients; P =.45) or CB (33% v 26%; P =.31), but there was a strong trend in favor of a longer TTP with letrozole (median, 6.1 v 3.3 months; P =.0596) and a significantly longer TTF with letrozole (median, 6.0 v 3.2 months; P =.0418). Multivariate analysis revealed that elevated serum HER-2/neu was a negative predictor for ORR and TTP. CONCLUSION Patients with normal serum HER-2/neu receiving letrozole demonstrated a significantly greater ORR and CB and longer TTP and TTF than patients receiving tamoxifen. Although in patients with elevated serum HER-2/neu there was no significant difference between letrozole and tamoxifen in ORR or CB, there was a strong trend favoring longer TTP and significantly longer TTF with letrozole.
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MESH Headings
- Adult
- Aged
- Aged, 80 and over
- Antineoplastic Agents/therapeutic use
- Aromatase Inhibitors
- Breast Neoplasms/blood
- Breast Neoplasms/drug therapy
- Breast Neoplasms/mortality
- Breast Neoplasms/pathology
- Disease-Free Survival
- Double-Blind Method
- Enzyme-Linked Immunosorbent Assay
- Estrogen Antagonists/therapeutic use
- Female
- Humans
- Letrozole
- Middle Aged
- Neoplasm Metastasis
- Neoplasm Recurrence, Local/blood
- Neoplasm Recurrence, Local/drug therapy
- Neoplasm Recurrence, Local/mortality
- Neoplasm Recurrence, Local/pathology
- Neoplasm Staging
- Neoplasms, Hormone-Dependent/blood
- Neoplasms, Hormone-Dependent/drug therapy
- Neoplasms, Hormone-Dependent/mortality
- Neoplasms, Hormone-Dependent/pathology
- Nitriles/therapeutic use
- Receptor, ErbB-2/blood
- Switzerland
- Tamoxifen/therapeutic use
- Treatment Outcome
- Triazoles/therapeutic use
- United States
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Affiliation(s)
- A Lipton
- Penn State Milton S. Hershey Medical Center, Department of Medicine, Division of Hematology/Oncology HO46, 500 University Dr, PO Box 850, Hershey, PA 17033, USA.
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Browne WR, Coates CG, Brady C, Matousek P, Towrie M, Botchway SW, Parker AW, Vos JG, McGarvey JJ. Isotope effects on the picosecond time-resolved emission spectroscopy of tris(2,2'-bipyridine)ruthenium (II). J Am Chem Soc 2003; 125:1706-7. [PMID: 12580589 DOI: 10.1021/ja0289346] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
The excited-state properties of the transition metal complexes tris(2,2'-bipyridine) ruthenium(II) and tris(4,7-diphenyl-1,10-phenanthroline) ruthenium(II) are examined using picosecond time-resolved luminescence spectroscopy. For both complexes, direct observation of a short-lived high-energy emission with a lifetime of less than 4 ps is reported. Upon deuteriation of the complexes the lifetime of the high-energy emission shows a marked increase with a biexponential decay (20 and approximately 300 ps components). Examination by time-resolved excited-state resonance Raman shows that for the perprotio complexes features attributable to the 3MLCT excited state are formed within 4 ps, while for the perdeuterio a rise time of approximately 20 ps is observed in the 3MLCT features. The results indicate that the emission in both cases may be 1MLCT in origin and are discussed with respect to heterogeneous electron transfer.
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Affiliation(s)
- Wesley R Browne
- National Centre for Sensor Research, School of Chemical Sciences, Dublin City University, Dublin 9, Ireland
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Lipton A, Ali SM, Leitzel K, Demers L, Chinchilli V, Engle L, Harvey HA, Brady C, Nalin CM, Dugan M, Carney W, Allard J. Elevated serum Her-2/neu level predicts decreased response to hormone therapy in metastatic breast cancer. J Clin Oncol 2002; 20:1467-72. [PMID: 11896093 DOI: 10.1200/jco.2002.20.6.1467] [Citation(s) in RCA: 120] [Impact Index Per Article: 5.5] [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: 11/20/2022] Open
Abstract
PURPOSE To determine the effect of elevation of serum HER-2/neu on response to hormone therapy. PATIENTS AND METHODS Seven hundred nineteen metastatic patients with estrogen receptor-positive (ER(+)), progesterone receptor-positive, or both or ER status unknown breast cancer were randomized in three independent clinical trials to receive second-line hormone therapy with either megestrol acetate or an aromatase inhibitor (fadrozole or letrozole). An automated enzyme-linked immunosorbent assay specific for the extracellular domain of the HER-2/neu (c-erbB-2) oncoprotein product was used to detect serum levels. RESULTS Two hundred nineteen patients (30%) had elevated serum HER-2/neu protein levels, using the mean + 2 SD (15 ng/mL) from the serum of healthy women as an upper limit. Response to treatment was available for 711 patients. The response rate (complete responses plus partial responses plus stable disease) to endocrine therapy was 45% in 494 patients with non-elevated and 23% in 217 patients with elevated serum HER-2/neu levels (P <.0001). Median duration of treatment response (using the time to progression [TTP] variable for patients who responded) was shorter in the group with elevated serum HER-2/neu levels (11.7 months) compared with the patient group with non-elevated levels (17.4 months). TTP, time to treatment failure, and median survival (17.2 months v 29.6 months) were also significantly shorter in the patients with elevated serum HER-2/neu levels (P <.0001). CONCLUSION Patients with ER(+) and serum HER-2/neu-positive metastatic breast cancer are less likely to respond to hormone treatment and have a shorter duration of response than ER(+) and serum HER-2/neu-negative patients. Their survival duration is also shorter.
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Affiliation(s)
- Allan Lipton
- Department of Hematology and Oncology, Penn State Milton S. Hershey Medical Center, Hershey, Pennsylvania 17033, USA.
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Affiliation(s)
- C Brady
- Division of Nursing, Regis College, 235 Wellesley St, Weston, MA 02493-1571, USA
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