1
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Fuller H, Race AD, Fenton H, Burke L, Downing A, Williams EA, Rees CJ, Brown LC, Loadman PM, Hull MA. Plasma and rectal mucosal oxylipin levels during aspirin and eicosapentaenoic acid treatment in the seAFOod polyp prevention trial. Prostaglandins Leukot Essent Fatty Acids 2023; 192:102570. [PMID: 37003144 DOI: 10.1016/j.plefa.2023.102570] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 03/20/2023] [Accepted: 03/21/2023] [Indexed: 04/03/2023]
Abstract
BACKGROUND Aspirin and eicosapentaenoic acid (EPA) have colorectal polyp prevention activity, alone and in combination. This study measured levels of plasma and rectal mucosal oxylipins in participants of the seAFOod 2 × 2 factorial, randomised, placebo-controlled trial, who received aspirin 300 mg daily and EPA 2000 mg free fatty acid, alone and in combination, for 12 months. METHODS Resolvin (Rv) E1, 15-epi-lipoxin (LX) A4 and respective precursors 18-HEPE and 15-HETE (with chiral separation) were measured by ultra-high performance liquid chromatography-tandem mass spectrometry in plasma taken at baseline, 6 months and 12 months, as well as rectal mucosa obtained at trial exit colonoscopy at 12 months, in 401 trial participants. RESULTS Despite detection of S- and R- enantiomers of 18-HEPE and 15-HETE in ng/ml concentrations, RvE1 or 15‑epi-LXA4 were not detected above a limit of detection of 20 pg/ml in plasma or rectal mucosa, even in individuals randomised to both aspirin and EPA. We have confirmed in a large clinical trial cohort that prolonged (12 months) treatment with EPA is associated with increased plasma 18-HEPE concentrations (median [inter-quartile range] total 18-HEPE 0.51 [0.21-1.95] ng/ml at baseline versus 0.95 [0.46-4.06] ng/ml at 6 months [P<0.0001] in those randomised to EPA alone), which correlate strongly with respective rectal mucosal 18-HEPE levels (r = 0.82; P<0.001), but which do not predict polyp prevention efficacy by EPA or aspirin. CONCLUSION Analysis of seAFOod trial plasma and rectal mucosal samples has not provided evidence of synthesis of the EPA-derived specialised pro-resolving mediator RvE1 or aspirin-trigged lipoxin 15‑epi-LXA4. We cannot rule out degradation of individual oxylipins during sample collection and storage but readily measurable precursor oxylipins argues against widespread degradation.
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Affiliation(s)
- H Fuller
- Leeds Institute of Medical Research, University of Leeds, UK
| | - A D Race
- Institute of Cancer Therapeutics, University of Bradford, UK
| | - H Fenton
- Leeds Institute of Medical Research, University of Leeds, UK
| | - L Burke
- Institute of Cancer Therapeutics, University of Bradford, UK
| | - A Downing
- Leeds Institute of Medical Research, University of Leeds, UK
| | - E A Williams
- Department of Oncology and Metabolism, University of Sheffield, UK
| | - C J Rees
- Population Health Science Institute, Newcastle University, UK
| | - L C Brown
- MRC Clinical Trials Unit at University College, London, UK
| | - P M Loadman
- Institute of Cancer Therapeutics, University of Bradford, UK
| | - M A Hull
- Leeds Institute of Medical Research, University of Leeds, UK.
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Abstract
The psychedelic research renaissance is gaining traction. Preliminary clinical studies of the hallucinogenic fungi, psilocybin, with psychological support, have indicated improvements in mood, anxiety and quality of life. A seminal, open-label study demonstrated marked reductions in depression symptoms in participants with treatment-resistant depression (TRD). The associated neurobiological processes involve alterations in brain connectivity, together with altered amygdala and default mode network activity. At the cellular level, psychedelics promote synaptogenesis and neural plasticity. Prompted by the promising preliminary studies, a randomized, double-blind trial has recently been launched across Europe and North America to investigate the efficacy of psilocybin in TRD. One of these centres is based in Ireland - CHO Area 7 and Tallaght University Hospital. The outcome of this trial will determine whether psilocybin with psychological support will successfully translate into the psychiatric clinic for the benefit of patients.
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Affiliation(s)
- J R Kelly
- Department of Psychiatry, Trinity College Dublin & Tallaght Hospital, Trinity Centre for Health Sciences, Tallaght University Hospital, Tallaght, Dublin, Ireland
- Tallaght University Hospital, Tallaght, Dublin, Ireland
| | - A Baker
- Sheaf House, Exchange Hall, Tallaght, Dublin, Ireland
| | - M Babiker
- Tallaght University Hospital, Tallaght, Dublin, Ireland
| | - L Burke
- Sheaf House, Exchange Hall, Tallaght, Dublin, Ireland
| | - C Brennan
- Sheaf House, Exchange Hall, Tallaght, Dublin, Ireland
| | - V O'Keane
- Department of Psychiatry, Trinity College Dublin & Tallaght Hospital, Trinity Centre for Health Sciences, Tallaght University Hospital, Tallaght, Dublin, Ireland
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3
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Young M, Thapa D, Moon A, Kim H, Beyer C, Sanders E, Wang K, McGinty K, Burke L, Altun E, Zhang X, Tan X, Tepper J, Yanagihara T. Disease Control and Hepatotoxicity Following Stereotactic Body Radiotherapy for Hepatocellular Carcinoma. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.1084] [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: 10/31/2022]
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4
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Hughes RK, Shiwani H, Rosmini S, Burke L, Pierce I, Castelletti S, Xue H, Kellman P, Lopes LR, Treibel T, Manisty C, Captur G, Davies R, Moon J. Improved diagnostic accuracy for apical hypertrophic cardiomyopathy. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1553] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Introduction
The diagnosis of apical hypertrophic cardiomyopathy (ApHCM) is contingent on demonstrating apical maximum wall thickness (MWT) of ≥15mm; the same threshold as other HCM subtypes. However, the myocardium naturally tapers towards the apex in healthy individuals, so ≥15mm MWT is proportionately higher in the apex than in naturally thicker basal segments. Using cardiac magnetic resonance (CMR), relative ApHCM has been described (typical ECG features, loss of apical tapering, cavity obliteration but hypertrophy <15mm). Wall thickness measurement using machine learning now exceeds human performance.
Purpose
We aimed to redefine the optimal diagnostic threshold for ApHCM using segment-specific criteria based on a large cohort of healthy control subjects.
Methods
Segmental wall thickness was measured using healthy subjects from the UK Biobank using a clinically validated machine learning algorithm1,2. A normative reference range was established for all 16 segments, conditioned to body surface area (BSA), sex and age. Derived segment-specific wall thickness thresholds were used to define optimal disease thresholds for patients clinically managed with overt (MWT ≥15mm) and relative ApHCM (MWT <15mm, but typical ECG and imaging findings).
Results
4118 UK biobank subjects were used to define normal segmental thicknesses and reference ranges. These were applied to ApHCM (73 overt, 31 relative). There were no apical wall thickness age related differences. The upper limit of the 95% confidence interval corresponded to a combined maximum apical MWT for both males and females of 10.4mm using non-indexed measurement, or 5.6mm/m2 when indexed to BSA. Non-indexed segmental threshold identified 100% of ApHCM patients (true positives), 81% (25 of 31) relative ApHCM and 3% (115 of 4118) of healthy UK biobank subjects (false positives). Indexed segmental thresholds improved the diagnostic potential in relative ApHCM without an increase in false positives (100% of ApHCM patients, 84% (26 of 31) of relative ApHCM patients, and 3% healthy UK biobank (127 of 4118).
Conclusion
We propose new diagnostic criteria for ApHCM using segmental indexed apical wall thickness of >5.6 mm/m2 to better identify inappropriate apical hypertrophy in those whose wall thickness does not meet current criteria for diagnosis.
Funding Acknowledgement
Type of funding sources: Foundation. Main funding source(s): British Heart Foundation
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Affiliation(s)
- R K Hughes
- Barts Heart Centre , London , United Kingdom
| | - H Shiwani
- Barts Heart Centre , London , United Kingdom
| | - S Rosmini
- King's College Hospital , London , United Kingdom
| | - L Burke
- University College London , London , United Kingdom
| | - I Pierce
- Barts Heart Centre , London , United Kingdom
| | - S Castelletti
- Italian Auxological Institute San Luca Hospital , Milan , Italy
| | - H Xue
- National Institutes of Health , Bethesda , United States of America
| | - P Kellman
- National Institutes of Health , Bethesda , United States of America
| | - L R Lopes
- Barts Heart Centre , London , United Kingdom
| | - T Treibel
- Barts Heart Centre , London , United Kingdom
| | - C Manisty
- Barts Heart Centre , London , United Kingdom
| | - G Captur
- University College London , London , United Kingdom
| | - R Davies
- University College London , London , United Kingdom
| | - J Moon
- Barts Heart Centre , London , United Kingdom
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5
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Venkatesh A, Janke A, Koski-Vacirca R, Rothenberg C, Parwani V, Granovsky M, Burke L, Li SX, Pines J. 9 Nationwide Reimbursement Impact of COVID-19 to Emergency Physicians: $6.6 Billion Loss in 2020. Ann Emerg Med 2022. [PMCID: PMC9519215 DOI: 10.1016/j.annemergmed.2022.08.031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
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6
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Lin M, Burke R, Goldberg E, Hwang U, Burke L. 136 Ambulatory Follow-up After Emergency Department Discharge and Association With Outcomes Among Older Adults With Alzheimer’s Disease and Related Dementia. Ann Emerg Med 2022. [DOI: 10.1016/j.annemergmed.2022.08.160] [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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7
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Shiwani H, Hughes RK, Camaioni C, Augusto JB, Knott K, Rosmini S, Burke L, Pierce I, Moon JC, Davies RH. Asymmetric septal thickening is observed in hypertrophic cardiomyopathy mutation carriers without left ventricular hypertrophy: insights from AI analysis. Eur Heart J Cardiovasc Imaging 2022. [DOI: 10.1093/ehjci/jeac141.011] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: Private grant(s) and/or Sponsorship. Main funding source(s): Dr Hughes is supported by the British Heart Foundation (grant number FS/17/82/33222).
Background
Hypertrophic cardiomyopathy (HCM) is a common inherited cardiac disease characterised by left ventricular hypertrophy (LVH), often, with asymmetric septal thickening. Despite the prevalence of inherited mutations present in >50% of cases, there is variable phenotypic expression in those with abnormal sarcomere protein genes. In individuals with abnormal genes but without LVH, we hypothesised that there is subtle asymmetric septal hypertrophy, detectable by the increased precision offered by an artificial intelligence (AI) tool for measuring wall thickness.
Purpose
We explored the septal-lateral ratio measured by AI in individuals with an identified genotype but no left ventricular hypertrophy as a component of sub-clinical HCM.
Methods
43 individuals with identified genotype, but no left ventricular hypertrophy (G+LVH-) and 97 age-, sex- and disease-matched controls underwent CMR. Patients were excluded if they had a maximum wall thickness (MWT) of ≥13mm. A clinically validated AI tool was used to measure the MWT, for each segment in the 16-segment AHA model. The septal-lateral ratio was calculated using the septal segment with the largest MWT and the lateral segment with the largest MWT.
Results
The mean septal-lateral ratio of the G+LVH- patients was 1.22 (SD 0.22) and the mean septal-lateral ratio of the matched controls was 1.14 (SD 0.15) with a statistically significant mean difference of 0.08 (p=0.01). There was no significant difference between the MWT of the G+LVH- patients at 10.3mm (SD 2.2) and healthy volunteers at 10.1mm (SD 1.8) (p = 0.61).
Conclusion
G+LVH- patients have a 7% increase in their septal-lateral ratio compared with age-matched controls despite the lack of difference in the MWT. Using increased precision offered by AI, early features of HCM can be observed in patients without overt LVH.
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Affiliation(s)
- H Shiwani
- University College London , London , United Kingdom of Great Britain & Northern Ireland
| | - R K Hughes
- University College London , London , United Kingdom of Great Britain & Northern Ireland
| | - C Camaioni
- Barts Heart Centre , London , United Kingdom of Great Britain & Northern Ireland
| | - J B Augusto
- University College London , London , United Kingdom of Great Britain & Northern Ireland
| | - K Knott
- University College London , London , United Kingdom of Great Britain & Northern Ireland
| | - S Rosmini
- Barts Heart Centre , London , United Kingdom of Great Britain & Northern Ireland
| | - L Burke
- University College London , London , United Kingdom of Great Britain & Northern Ireland
| | - I Pierce
- Barts Heart Centre , London , United Kingdom of Great Britain & Northern Ireland
| | - J C Moon
- University College London , London , United Kingdom of Great Britain & Northern Ireland
| | - R H Davies
- University College London , London , United Kingdom of Great Britain & Northern Ireland
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8
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Shiwani H, Hughes RK, Camaioni C, Augusto JB, Knott K, Rosmini S, Khoury S, Malcolmson J, Kellman P, Xue H, Burke L, Pierce I, Moon JC, Davies RH. Improving the diagnostic accuracy of apical hypertrophic cardiomyopathy using machine learning. Eur Heart J Cardiovasc Imaging 2022. [DOI: 10.1093/ehjci/jeac141.009] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: Private grant(s) and/or Sponsorship. Main funding source(s): Dr Hughes is supported by the British Heart Foundation (grant number FS/17/82/33222).
Introduction
The imaging criteria for diagnosis of apical hypertrophic cardiomyopathy (ApHCM) is a maximum wall thickness (MWT) ≥15mm. CMR enables detection of subtle phenotypic features (e.g. loss of apical tapering, cavity obliteration) and coupled with characteristic electrocardiogram changes, ApHCM can be diagnosed without overt hypertrophy. However, these patients are not captured by current diagnostic criteria.
Purpose
We sought to use a machine learning tool to quantify wall thickness and identify patients with ‘relative’ ApHCM that do not reach current diagnostic thresholds.
Methods
CMR images from 4118 healthy participants from the UK Biobank were segmented automatically with a clinically validated machine learning algorithm and wall thickness measured at all point in the myocardium by solving a solution to Laplace’s equation. MWT were pooled into 16 AHA segments and indexed to body surface area (BSA). The non-indexed and indexed segmental upper limit of normal was calculated as the mean + 3 standard deviations (the equivalent of 95% confidence interval after correcting for multiple [16] comparisons using the Bonferroni method).
Results
73 overt ApHCM subjects (MWT>15mm) and 31 relative ApHCM subjects underwent CMR scanning. In healthy controls, the non-indexed (and indexed) upper limits were calculated for the apical-anterior 10.2mm (5.2 mm/m2), apical-septal 11.1mm (5.6 mm/m2), apical-inferior 10.5mm (5.3 mm/m2) and apical-lateral 10.1mm (5.2 mm/m2) segments. With a non-indexed cut-off, all (73 of 73) overt ApHCM and 84% (26 of 31) relative ApHCM were classified as having an abnormally thick apex. 3% (127 of 4118) of the healthy UK Biobank cohort were classified as abnormal, as expected. Using an indexed cut-off, all overt ApHCM and 87% (27/31) relative ApHCM were classified as abnormal, and 3% (123 of 4118) of the healthy UK Biobank cohort were misclassified.
Conclusion
We can successfully classify 87% of relative ApHCM patients from a normative reference range derived from a large cohort of healthy patients – a significant improvement on existing methods. We show that the specificity and sensitivity is increased when MWT is indexed to BSA. For practical clinical application, we recommend a cut-off of 10mm or an indexed cut-off of 5mm/m2 in any apical segment to diagnose apical LVH. Overt and relative apical HCM examplesHealthy controls AHA maps (non-indexed)
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Affiliation(s)
- H Shiwani
- University College London , London , United Kingdom of Great Britain & Northern Ireland
| | - R K Hughes
- University College London , London , United Kingdom of Great Britain & Northern Ireland
| | - C Camaioni
- Barts Heart Centre , London , United Kingdom of Great Britain & Northern Ireland
| | - J B Augusto
- University College London , London , United Kingdom of Great Britain & Northern Ireland
| | - K Knott
- University College London , London , United Kingdom of Great Britain & Northern Ireland
| | - S Rosmini
- Barts Heart Centre , London , United Kingdom of Great Britain & Northern Ireland
| | - S Khoury
- St George's University of London, Cardiovascular Clinical and Academic Group , London , United Kingdom of Great Britain & Northern Ireland
| | - J Malcolmson
- Barts Heart Centre , London , United Kingdom of Great Britain & Northern Ireland
| | - P Kellman
- National Heart Lung and Blood Institute , Bethesda , United States of America
| | - H Xue
- National Heart Lung and Blood Institute , Bethesda , United States of America
| | - L Burke
- University College London , London , United Kingdom of Great Britain & Northern Ireland
| | - I Pierce
- Barts Heart Centre , London , United Kingdom of Great Britain & Northern Ireland
| | - J C Moon
- University College London , London , United Kingdom of Great Britain & Northern Ireland
| | - R H Davies
- University College London , London , United Kingdom of Great Britain & Northern Ireland
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9
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O’Sullivan K, Rock N, Burke L, Boyle N, Joksimovic N, Foley H, Clark S. Gender Differences in the Psychosocial Functioning of Parents During the COVID-19 Pandemic. Front Psychol 2022; 13:846238. [PMID: 35899000 PMCID: PMC9309276 DOI: 10.3389/fpsyg.2022.846238] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/30/2021] [Accepted: 05/09/2022] [Indexed: 11/13/2022] Open
Abstract
The COVID-19 pandemic significantly affected family life, increasing parental stress around health, job losses, reduced salaries, and maintaining domestic life in lockdown and social isolation. The transition to home-schooling and remote work with school and workplace closures caused additional stressors as families began living, working, and educating in one place. This research aims to understand the relationship between the pandemic and parental stress, focusing on family well-being and established characteristics of the family unit that may cause some family members to experience the adverse consequences of the pandemic in more or less profound ways, especially mothers. Previous research shows that mothers carry more family responsibilities than fathers and can experience higher stress levels. This study employed a quantitative cross-sectional online survey to extend our understanding of the interaction between home-schooling, work and home life, and stress levels in a group of 364 parents. In total, 232 mothers and 132 fathers completed the survey. Results revealed mothers were 10 times more likely to be responsible for home-schooling than fathers, and 44% of mothers felt they had no help with home-schooling and were generally more stressed than fathers. These results show that lack of support, managing home-schooling, and being a mother predicted increased stress. 10% of mothers reported leaving their jobs due to pressure added by home-schooling. This study broadens the understanding of the pandemic’s impact on gender imbalances in family responsibilities. It emphasises the need for extra consideration for the impact on mothers as we emerge from this pandemic.
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10
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Appaneal R, Burke L, Drew M, Hughes D, Lovell G, Lundy B, Rogers M, Vlahovich N, Waddington G. The diagnostic performance of the Low Energy Availability in Females Questionnaire (LEAF-Q) in a mixed-sport cohort. J Sci Med Sport 2021. [DOI: 10.1016/j.jsams.2021.09.082] [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: 11/26/2022]
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11
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Clark S, McGrane A, Boyle N, Joksimovic N, Burke L, Rock N, O’ Sullivan K. “You’re a teacher you’re a mother, you’re a worker”: Gender inequality during COVID‐19 in Ireland. Gender Work Organ 2021. [DOI: 10.1111/gwao.12611] [Citation(s) in RCA: 38] [Impact Index Per Article: 12.7] [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)
- Serena Clark
- Department of Psychology ALL (Assisting Living and Learning Institute) Maynooth University Maynooth Kildare Ireland
| | - Amy McGrane
- Department of Psychology ALL (Assisting Living and Learning Institute) Maynooth University Maynooth Kildare Ireland
| | - Neasa Boyle
- Department of Psychology ALL (Assisting Living and Learning Institute) Maynooth University Maynooth Kildare Ireland
| | - Natasha Joksimovic
- Department of Psychology ALL (Assisting Living and Learning Institute) Maynooth University Maynooth Kildare Ireland
| | - Lydia Burke
- Department of Psychology ALL (Assisting Living and Learning Institute) Maynooth University Maynooth Kildare Ireland
| | - Nicole Rock
- Department of Psychology ALL (Assisting Living and Learning Institute) Maynooth University Maynooth Kildare Ireland
| | - Katriona O’ Sullivan
- Department of Psychology ALL (Assisting Living and Learning Institute) Maynooth University Maynooth Kildare Ireland
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12
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Lin M, Burke R, Orav E, Burke L. Ambulatory Care Access and Postdischarge Adverse Events after Emergency Department Visits Among Medicare Beneficiaries. Health Serv Res 2020. [DOI: 10.1111/1475-6773.13448] [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: 11/27/2022] Open
Affiliation(s)
- M. Lin
- Icahn School of Medicine at Mount Sinai New York NY USA
| | - R. Burke
- Beth Israel Deaconess Medical Center‐Harvard Medical School Boston MA USA
| | - E.J. Orav
- Division of General Internal Medicine and Primary Care Brigham and Women's Hospital Boston USA
| | - L. Burke
- Harvard T.H. Chan School of Public Health Cambridge MA USA
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13
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Chique C, Hynds PD, Andrade L, Burke L, Morris D, Ryan MP, O'Dwyer J. Cryptosporidium spp. in groundwater supplies intended for human consumption - A descriptive review of global prevalence, risk factors and knowledge gaps. Water Res 2020; 176:115726. [PMID: 32247994 DOI: 10.1016/j.watres.2020.115726] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/05/2019] [Revised: 03/05/2020] [Accepted: 03/15/2020] [Indexed: 06/11/2023]
Abstract
Cryptosporidiosis is one of the leading causes of diarrhoeal illness and mortality induced by protozoan pathogens worldwide. As a largely waterborne disease, emphasis has been given to the study of Cryptosporidium spp. in surface waters, readily susceptible to pathogenic contamination. Conversely, the status of Cryptosporidium in potable groundwater sources, generally regarded as a pristine and "safe" drinking-water supply owing to (sub)-soil protection, remains largely unknown. As such, this investigation presents the first literature review aimed to ascertain the global prevalence of Cryptosporidium in groundwater supply sources intended for human consumption. Thirty-seven peer-reviewed studies were identified and included in the review. Groundwater sample and supply detection rates (estimated 10-20%) indicate Cryptosporidium is frequently present in domestic groundwater sources, representing a latent health concern for groundwater consumers. Specifically, sample (10.4%) and source (19.1%) detection rates deriving from comprehensive "temporal" investigations are put forward as representative of a contamination 'baseline' for Cryptosporidium in 'domestic' groundwater supplies. Proposed 'baseline' prevalence figures are largely applicable in preventive risk-based catchment and groundwater quality management including the formulation of Quantitative Microbial Risk Assessment (QMRA). Notwithstanding, a large geographical disparity in available investigations and lack of standardized reporting restrict the transferability of research findings. Overall, the mechanisms responsible for Cryptosporidium transport and ingress into groundwater supplies remain ambiguous, representing a critical knowledge gap, and denoting a distinctive lack of integration between groundwater and public-health sub-disciplines among investigations. Key recommendations and guidelines are provided for prospective studies directed at more integrative and multi-disciplinary research.
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Affiliation(s)
- C Chique
- School of Biological, Earth and Environmental Science (BEES), University College Cork, Cork, Ireland; Environmental Research Institute, University College Cork, Cork, Ireland
| | - P D Hynds
- Irish Centre for Research in Applied Geosciences, University College Dublin, Dublin, Ireland; Environmental Sustainability and Health Institute (ESIH), Technological University Dublin, Ireland.
| | - L Andrade
- School of Biological, Earth and Environmental Science (BEES), University College Cork, Cork, Ireland; Environmental Research Institute, University College Cork, Cork, Ireland; Irish Centre for Research in Applied Geosciences, University College Dublin, Dublin, Ireland
| | - L Burke
- Antimicrobial Resistance and Microbial Ecology Group, School of Medicine and Centre for Health from Environment, Ryan Institute, National University of Ireland, Galway, Ireland
| | - D Morris
- Antimicrobial Resistance and Microbial Ecology Group, School of Medicine and Centre for Health from Environment, Ryan Institute, National University of Ireland, Galway, Ireland
| | - M P Ryan
- Department of Chemical Sciences, University of Limerick, Limerick, Ireland
| | - J O'Dwyer
- School of Biological, Earth and Environmental Science (BEES), University College Cork, Cork, Ireland; Environmental Research Institute, University College Cork, Cork, Ireland; Irish Centre for Research in Applied Geosciences, University College Dublin, Dublin, Ireland.
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14
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Chasens ER, Sereika SM, Kortykowski M, Stansbury R, Burke L, Strollo PJ, Bizhanova Z, Atwood CW. 0686 Diabetes Sleep Treatment Trial: The Effect Of Treatment Of OSA With CPAP On Glycemic Control In Type 2 Diabetes. Sleep 2020. [DOI: 10.1093/sleep/zsaa056.682] [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: 11/12/2022] Open
Abstract
Abstract
Introduction
Evidence remains unclear whether treatment of OSA with CPAP results in improved glycemic control. This study evaluated if CPAP improved glucose control compared to sham-CPAP and the effect of adherence to active CPAP on glucose control after 6 and 12 weeks of treatment.
Methods
This was a multi-center, double-blind clinical trial. Participants were adults with type 2 diabetes (T2D), A1C≥6.5%, apnea + hypopnea index (AHI)≥10, and naïve to CPAP. All participants received diabetes education. Glucose control was evaluated with frucostamine and A1C levels; CPAP adherence with a wireless modem system. Statistical analysis followed an “intent-to-treat” approach with linear mixed modeling. The dose of active CPAP was calculated as the percentage of days with active CPAP use≥4 hours and the average adherence of active CPAP with sham coded as “0”dose”.
Results
Randomized participants (N=98, CPAP=50; sham-CPAP=48) were primarily middle-aged (age=58.7±9.8 years), White (75%), males (57%) obese (BMI=36.2±6.6), suboptimal glucose control (A1C=7.9%±0.9) and OSA (AHI=23.9±14.4). There were no significant baseline differences except in A1C (Active CPAP=7.7%±0.8; sham-CPAP=8.1%±1.0). There was no significant difference in use of their devices at 6 or 12 weeks. Based on linear mixed modeling, participants on active CPAP had improved A1C (b (SE): -.76 (.24), P<.01) and frucostamine (-21.8 (10.5), P=.04) at 6 weeks with A1C trending to significance at 12 weeks (p=0.10). Both the % of cumulative days of active CPAP usage (≥4 hours/day) (.002 (.003), P=.09) and cumulative hours of active CPAP use (.03 (.03), P=.08) showed a trend being associated with greater change in A1C but not in frucostamine (P=.61, P=.51). The rate of change in A1C varied by time, increasing the % of cumulative days of CPAP use (≥4 hours/day) at week 6 predicted greater change in A1C (.006 (.002), P=.01) than week 12 (.002 (.003), P=.38). Higher average hours of CPAP usage were associated with greater change in A1C (.08 (.03), P=.01) at week 6 compared to week 12 (.03 (.03), P=.47).
Conclusion
In our study, individuals with T2D and OSA, adherence to active CPAP use improved glycemic control over 6 weeks.
Support
NIDDK grant R01DK096028; CTRI grant UL1TR001857 and UL1TR000005.
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Affiliation(s)
| | | | | | | | - L Burke
- University of Pittsburgh, Pittsburgh, PA
| | - P J Strollo
- Veterans Administration Pittsburgh Healthcare System, Pittsburgh, PA
| | | | - C W Atwood
- Veterans Administration Pittsburgh Healthcare System, Pittsburgh, PA
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Burke L, Androutsos C, Jogia J, Byrne P, Frangou S. The Maudsley Early Onset Schizophrenia Study: The effect of age of onset and illness duration on fronto-parietal gray matter. Eur Psychiatry 2020; 23:233-6. [DOI: 10.1016/j.eurpsy.2008.03.007] [Citation(s) in RCA: 43] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/03/2007] [Revised: 12/14/2007] [Accepted: 01/07/2008] [Indexed: 11/28/2022] Open
Abstract
AbstractObjectiveIn Early Onset Schizophrenia (EOS; onset before the 18th birthday) late brain maturational changes may interact with disease mechanisms leading to a wave of back to front structural changes during adolescence. To further explore this effect we examined the relationship between age of onset and duration of illness on brain morphology in adolescents with EOS.Subjects and methodsStructural brain magnetic resonance imaging scans were obtained from 40 adolescents with EOS. We used Voxel Based Morphometry and multiple regressions analyses, implemented in SPM, to examine the relationship between gray matter volume with age of onset and illness duration.ResultsAge of onset showed a positive correlation with regional gray matter volume in the right superior parietal lobule (Brodmann Area 7). Duration of illness was inversely related to regional gray matter volume in the left inferior frontal gyrus (BA 11/47).ConclusionsParietal gray matter loss may contribute to the onset of schizophrenia while orbitofrontal gray matter loss is associated with illness duration.
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Rogers M, Burke L, Vlahovich N, Lovell G, Pyne D, Lundy B, Appaneal R, Halson S, West N, Welvaert M, Hughes D, Waddington G, Drew M. Prevalence of variables related to RED-S in Australian elite and pre-elite female athletes. J Sci Med Sport 2018. [DOI: 10.1016/j.jsams.2018.09.073] [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: 10/28/2022]
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Hart A, Bonner G, Suarez M, Roberson T, Burke L, Steffen A. FINDINGS FROM AN END-OF-LIFE EDUCATION INTERVENTION FOR AFRICAN AMERICAN CAREGIVERS OF RELATIVES WITH DEMENTIA. Innov Aging 2018. [DOI: 10.1093/geroni/igy023.1558] [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: 11/14/2022] Open
Affiliation(s)
- A Hart
- University of Illinois at Chicago
| | - G Bonner
- University of Illinois at Chicago
| | - M Suarez
- University of Illinois at Chicago
| | | | - L Burke
- University of Illinois at Chicago
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Lorenzi J, Cohen Y, Burke L, Caskey M, Nussenzweig M. A phase 2 trial to evaluate the effects of 3BNC117 in addition to antiretroviral therapy on the latent reservoir and viral rebound. J Virus Erad 2017. [DOI: 10.1016/s2055-6640(20)30556-2] [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: 11/15/2022] Open
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Burke L, Brown W. Weighty Issues Symposium. J Sci Med Sport 2017. [DOI: 10.1016/j.jsams.2017.09.375] [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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Burke L. Low carb high fat (LCHF) diets for athletes – Third time lucky? J Sci Med Sport 2017. [DOI: 10.1016/j.jsams.2017.09.369] [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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Morris JL, Atwood C, Burke L, Baniak L, Korytkowski M, Sereika S, Strollo PJ, Chasens E. 1063 THE EFFECT OF SLEEP QUALITY ON INTIMATE RELATIONSHIPS AND SEXUAL ACTIVITY IN MEN AND WOMEN WITH TYPE 2 DIABETES. Sleep 2017. [DOI: 10.1093/sleepj/zsx050.1062] [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: 11/13/2022] Open
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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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Isaacson A, Commander C, Burke L. Visibility of gadolinium enhancement adjacent to radiopaque polyvinyl alcohol beads in a liver phantom. J Vasc Interv Radiol 2017. [DOI: 10.1016/j.jvir.2016.12.1076] [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: 11/28/2022] Open
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Khanna D, Denton C, Jahreis A, van Laar J, Burke L, Spotswood H, Lin C, Pope J, Allanore Y, Müller-Ladner U, Siegel J, Furst D. FRI0268 Safety and Efficacy of Subcutaneous Tocilizumab in Early Systemic Sclerosis: Results from The Open-Label Period of The Fasscinate Trial. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.2402] [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: 11/04/2022]
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Ryan C, Barbour A, Burke L, Sheppard MN. Non-infectious aortitis of the ascending aorta: a histological and clinical correlation of 71 cases including overlap with medial degeneration and atheroma—a challenge for the pathologist. J Clin Pathol 2015; 68:898-904. [DOI: 10.1136/jclinpath-2015-203061] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2015] [Accepted: 06/11/2015] [Indexed: 12/15/2022]
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Cort M, White G, Harcourt P, Burke L. Supplements in sport – To be or not to be – That is the question. J Sci Med Sport 2014. [DOI: 10.1016/j.jsams.2014.11.105] [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: 11/15/2022]
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Moloney F, Ryan D, McCarthy L, McCarthy J, Burke L, Henry MT, Kennedy MP, Hinchion J, McSweeney S, Maher MM, O'Regan K. Increasing the accuracy of 18F-FDG PET/CT interpretation of "mildly positive" mediastinal nodes in the staging of non-small cell lung cancer. Eur J Radiol 2014; 83:843-7. [PMID: 24581594 DOI: 10.1016/j.ejrad.2014.01.016] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [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: 01/04/2014] [Accepted: 01/20/2014] [Indexed: 12/01/2022]
Abstract
INTRODUCTION The aim of this study was to identify radiological factors that may reduce false-positive results and increase diagnostic accuracy when staging the mediastinum of patients with non-small cell lung carcinoma (NSCLC). METHODS This was a retrospective, interdisciplinary, per-node analysis study. We included patients with NSCLC and mediastinal nodes with an SUV max in the range of 2.5-4.0 on PET-CT. We hypothesized that the greatest number of false positive cases would occur in this cohort of patients. RESULTS A total of 92 mediastinal lymph nodes were analyzed in 44 patients. Mediastinal disease (N2/N3) was histologically confirmed in 15 of 44 patients and in 34 of 92 lymph nodes; positive predictive value of 37% and false positive rate of 63%. Lymph node SUV max, tumor size, ratio of node SUV max to tumor SUV max (SUVn/SUVp), and ratio of node SUV max to node size (SUV n/SADn) were significantly higher in true positive cases. Using a threshold of 0.3 for SUV node/tumor and 3 for SUV node/size yielded sensitivities of 91% and 71% and specificities of 71% and 69% respectively for the detection of mediastinal disease. Using both ratios in combination resulted in a sensitivity of 65% and a specificity of 88%. Concurrent benign lung disease was observed significantly more frequently in false-positive cases. CONCLUSION SUVn/SUVpt and SUVn/SADn may be complimentary to conventional visual interpretation and SUV max measurement in the assessment of mediastinal disease in patients with NSCLC.
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Affiliation(s)
- F Moloney
- Department of Radiology, Cork University Hospital, Cork - 00353214922000, Ireland.
| | - D Ryan
- Department of Radiology, Cork University Hospital, Cork - 00353214922000, Ireland.
| | - L McCarthy
- Department of Radiology, Cork University Hospital, Cork - 00353214922000, Ireland.
| | - J McCarthy
- Department of Pathology, Cork University Hospital, Cork - 0214922000, Ireland.
| | - L Burke
- Department of Pathology, Cork University Hospital, Cork - 0214922000, Ireland.
| | - M T Henry
- Department of Respiratory Medicine, Cork University Hospital, Cork - 00353214922000, Ireland.
| | - M P Kennedy
- Department of Respiratory Medicine, Cork University Hospital, Cork - 00353214922000, Ireland.
| | - J Hinchion
- Department of Cardiothoracic Surgery, Cork University Hospital, Cork - 00353214922000, Ireland.
| | - S McSweeney
- Department of Radiology, Cork University Hospital, Cork - 00353214922000, Ireland.
| | - M M Maher
- Department of Radiology, Cork University Hospital, Cork - 00353214922000, Ireland.
| | - K O'Regan
- Department of Radiology, Cork University Hospital, Cork - 00353214922000, Ireland.
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Hoon M, Jones A, Johnson N, Blackwell J, Broad E, Lundy B, Rice A, Burke L. Dose response of nitrate supplementation on 2000m rowing ergometer performance. J Sci Med Sport 2013. [DOI: 10.1016/j.jsams.2013.10.084] [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: 11/26/2022]
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Fitzgerald-Hughes D, Bolkvadze D, Balarjishvili N, Leshkasheli L, Ryan M, Burke L, Stevens N, Humphreys H, Kutateladze M. Susceptibility of extended-spectrum- -lactamase-producing Escherichia coli to commercially available and laboratory-isolated bacteriophages. J Antimicrob Chemother 2013; 69:1148-50. [DOI: 10.1093/jac/dkt453] [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: 01/08/2023] Open
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Abstract
OBJECTIVE This prospective cohort study aimed to determine the impact of a low cost, home-based physical activity and nutrition program for older adults at 6 months follow-up. DESIGN A follow-up survey was conducted 6 months after program completion via computer-assisted telephone interviewing. The International Physical Activity Questionnaire and the Fat and Fibre Barometer were used to measure physical activity levels and dietary behaviours, respectively. Self-reported height, weight, waist and hip circumferences were obtained. Changes over three time points of data collection (baseline, post-program, follow-up) and differences between the intervention and control groups were assessed. The use of program materials was also evaluated. SETTING Community and home-based. PARTICIPANTS Insufficiently active 60 to 70 year olds (n = 176, intervention and n = 198, control) residing in suburbs within the Perth metropolitan area. RESULTS A sustained improvement was observed for the intervention group in terms of fat avoidance behaviours (p interaction = .007). Significant improvements were found for strength exercises, fibre intake, body mass index and waist-to-hip ratio at either post-program or follow-up, however the overall effect was not significant. At post-program, the intervention group increased time spent participating in moderate activity by 50 minutes (p > .05), which was followed by a significant decline at follow-up (p < .05). Among intervention group participants, males and females differed with respect to strength exercises and moderate physical activity. CONCLUSION This low-cost physical activity and nutrition intervention resulted in a sustained improvement in fat avoidance behaviours and overall short-term gains in physical activity. Future studies for older adults are recommended to investigate gender-specific behavioural barriers as well as booster interventions which focus on physical activity.
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Affiliation(s)
- M Pasalich
- School of Public Health, Curtin University, G.P.O. Box U 1987, Perth, Western Australia.
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Toerner JG, Burke L, Komo S, Papadopoulos E. A Collaborative Model for Endpoint Development for Acute Bacterial Skin and Skin Structure Infections and Community-Acquired Bacterial Pneumonia. Clin Infect Dis 2012; 55:1122-3. [DOI: 10.1093/cid/cis567] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Burke L, Humphreys H, Fitzgerald-Hughes D. The revolving door between hospital and community: extended-spectrum beta-lactamase-producing Escherichia coli in Dublin. J Hosp Infect 2012; 81:192-8. [PMID: 22658893 DOI: 10.1016/j.jhin.2012.04.021] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2012] [Accepted: 04/04/2012] [Indexed: 12/18/2022]
Abstract
BACKGROUND Escherichia coli that produce extended-spectrum beta-lactamases (ESBLs) are an increasing cause of healthcare-associated infection, and community healthcare facilities may be a reservoir for important epidemic clones. AIM To characterize retrospectively and investigate the epidemiology of ESBL-producing E. coli collected in a Dublin hospital, during 2009 and 2010, and to investigate the dissemination of specific clones within hospital and community healthcare facilities. METHODS Pulsed-field gel electrophoresis (PFGE) was used to determine the genetic relatedness of 100 ESBL-producing E. coli isolates. Phylogenetic groups were determined and the O25b-ST131 clone identified in the collection. The genetic data were correlated with antimicrobial susceptibility, clinical and demographic data to explore the epidemiology of specific clones. FINDINGS Phylogenetic groups B2 (62%) and D (18%) were the most common and were associated with non-urinary isolates (P<0.0001 by Fisher's exact test). PFGE revealed 12 clusters (≥ 80% similarity), the largest of which clustered with the epidemic UK strain A. Residents of long-term care facilities (LTCFs) in the community exclusively carried the O25b-ST131 clone and phylogenetic groups B2 and D. CONCLUSIONS E. coli O25b-ST131 is largely responsible for ESBL-producing E. coli in LTCFs in Dublin. The distribution of ESBL-producing E. coli in our hospital and community highlights a 'revolving door' through which these resistant bacteria spread and disseminate.
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Affiliation(s)
- L Burke
- Department of Clinical Microbiology, Royal College of Surgeons in Ireland Education and Research Centre, Beaumont Hospital, Dublin, Ireland.
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Nishikawa M, Owaki H, Fuji T, Soliman MM, Ashcroft DM, Watson KD, Lunt M, Symmons D, Hyrich KL, Atkinson F, Malik S, Heycock C, Saravanan V, Rynne M, Hamilton J, Kelly C, Burmester G, Kary S, Unnebrink K, Guerette B, Oezer U, Kupper H, Dennison E, Jameson K, Hyrich K, Watson K, Landewe R, Keystone E, Smolen J, Goldring M, Guerette B, Patra K, Cifaldi M, van der Heijde D, Lloyd LA, Owen C, Breslin A, Ahmad Y, Emery P, Matteson EL, Genovese M, Sague S, Hsia EC, Doyle MK, Fan H, Elashoff M, Kirkham B, Wasco MC, Bathon J, Hsia EC, Fleischmann R, Genovese MC, Matteson EL, Liu H, Fleischmann R, Goldman J, Leirisalo-Repo M, Zanetakis E, El-Kadi H, Kellner H, Bolce R, Wang J, Dehoratius R, Decktor D, Kremer J, Taylor P, Mendelsohn A, Baker D, Kim L, Ritchlin C, Taylor P, Mariette X, Matucci Cerenic M, Pavelka K, van Vollenhoven R, Heatley R, Walsh C, Lawson R, Reynolds A, Emery P, Iaremenko O, Mikitenko G, Smolen J, van Vollenhoven R, Kavanaugh A, Luijtens K, van der Heijde D, Curtis J, van der Heijde D, Schiff M, Keystone E, Landewe R, Kvien T, Curtis J, Khanna D, Luijtens K, Furst D, Behrens F, Koehm M, Scharbatke EC, Kleinert S, Weyer G, Tony HP, Burkhardt H, Blunn KJ, Williams RB, Young A, McDowell J, Keystone E, Weinblatt M, Haraoui B, Guerette B, Mozaffarian N, Patra K, Kavanaugh A, Khraishi M, Alten R, Gomez-Reino J, Rizzo W, Schechtman J, Kahan A, Vernon E, Taylor M, Smolen J, Hogan V, Holweg C, Kummerfeld S, Teng O, Townsend M, van Laar JM, Gullick NJ, De Silva C, Kirkham BW, van der Heijde D, Landewe R, Guerette B, Roy S, Patra K, Keystone E, Emery P, Fleischmann R, van der Heijde D, Keystone E, Genovese MC, Conaghan PG, Hsia EC, Xu W, Baratelle A, Beutler A, Rahman MU, Nikiphorou E, Kiely P, Walsh DA, Williams R, Young A, Shah D, Knight GD, Hutchinson DG, Dass S, Atzeni F, Vital EM, Bingham SJ, Buch M, Beirne P, Emery P, Keystone E, Fleischmann R, Emery P, Dougados M, Williams S, Reynard M, Blackler L, Gullick NJ, Zain A, Oakley S, Rees J, Jones T, Mistlin A, Panayi G, Kirkham BW, Westhovens R, Durez P, Genant H, Robles M, Becker JC, Covucci A, Bathon J, Genovese MC, Schiff M, Luggen M, Le Bars M, Becker JC, Aranda R, Li T, Elegbe A, Dougados M, Smolen J, van Vollenhoven R, Kavanaugh A, Fichtner A, Strand V, Vencovsky J, van der Heijde D, Davies R, Galloway J, Watson KD, Lunt M, Hochberg M, Westhovens R, Aranda R, Kelly S, Khan N, Qi K, Pappu R, Delaet I, Luo A, Torbeyns A, Moreland L, Cohen R, Gujrathi S, Weinblatt M, Bykerk VP, Alvaro-Gracia J, Andres Roman Ivorra J, Nurmohamed MT, Pavelka K, Bernasconi C, Stancati A, Sibilia J, Ostor A, Strangfeld A, Eveslage M, Listing J, Herzer P, Liebhaber A, Krummel-Lorenz B, Zink A, Haraoui B, Emery P, Mozaffarian N, Guerette B, Kupper H, Patra K, Keystone E, Genovese MC, Breedveld FC, Emery P, Cohen SB, Keystone E, Matteson EL, Burke L, Chai A, Reiss W, Sweetser M, Shaw T, Ellis SD, Ehrenstein MR, Notley CA, Yazici Y, Curtis J, Ince A, Baraf H, Malamet R, Chung CY, Kavanaugh A, Hughes C, Faurholm B, Dell'Accio F, Manzo A, Seed M, Eltawil N, Marrelli A, Gould D, Subang C, Al-Kashi A, De Bari C, Winyard P, Chernajovsky Y, Nissim A, van Vollenhoven R, Emery P, Bingham C, Keystone E, Fleischmann RM, Furst DE, Macey KM, Sweetser MT, Lehane P, Farmer P, Long SG, Kremer JM, Furst DE, Burgos-Vargas R, Dudler J, Mela CM, Vernon E, Fleischmann RM, Wegner N, Lugli H, Quirke AM, Guo Y, Potempa J, Venables P. Rheumatoid arthritis - treatment: 180. Utility of Body Weight Classified Low-Dose Leflunomide in Japanese Rheumatoid Arthritis. Rheumatology (Oxford) 2011. [DOI: 10.1093/rheumatology/ker031] [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: 11/13/2022] Open
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Burke L, Alhajji M, Todd N, White JS. P113 Procalcitonin (PCT) is a safe and reliable biomarker of bacterial infection in exacerbations of COPD--so why is it so challenging to introduce it into a large UK hospital? Thorax 2010. [DOI: 10.1136/thx.2010.150987.14] [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: 11/04/2022]
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Affiliation(s)
- Lydia Burke
- Senior Lecturer and Advanced Nurse Practitioner, Health and Social Sciences Department, Middlesex University
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Basch EM, Sit L, Fruscione M, Burke L, Kane R, George D, Carducci MA, Matthew P, Beer TM, Scher HI. Pain and analgesic use in men with metastatic prostate cancer. J Clin Oncol 2009. [DOI: 10.1200/jco.2009.27.15_suppl.e20515] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
e20515 Background: Pain is an important endpoint in metastatic prostate cancer and was the basis for the 1996 FDA approval of mitoxantrone. Standards for pain assessment have evolved, and a 2006 draft FDA guidance provides new recommendations for patient- reported outcomes. Contemporary palliation models generally require pain reduction starting from baseline worst pain scores of ≥4/10, and progression models require a sufficient proportion of patients’ pain scores to worsen in order to assure an adequate effect size. The prevalence and distribution of pain severity at specific points in the prostate cancer disease continuum are not well defined. Consequently, it is unclear if sufficient numbers of patients are available to conduct prospective studies using pain palliation or prevention as primary endpoints. Methods: A questionnaire that includes the Brief Pain Inventory and additional pain/analgesia items was developed as a collaboration between the DOD/PCF-supported Prostate Cancer Clinical Trials Consortium (PCCTC) and FDA Study Endpoints and Labeling Design (SEALD) team. IRB waivers were obtained for anonymous administration at 5 PCCTC institutions (Sloan-Kettering, Duke, Johns Hopkins, Anderson, OHSU). Administration is ongoing. Results: Between August-December 2008, 325 men with prostate cancers representing different disease states being seen in outpatient clinics of participating centers were each queried once. Median age was 70 (range 49–87). More than half (n=175) self-reported metastatic disease, including 129 with bone metastases. Among those with bone metastases, 76 (59%) reported experiencing any level of pain in the last week; 49 (38%) reported a worst pain score ≥4/10 of which 38 (78%) used analgesics over the past week and 31 (63%) used daily analgesia. In addition, 70 of the 76 (92%) noted that their pain interfered with work, sleep, or enjoyment of life, with 25 (33%) noting severe interference. Among the 49 patients with pain scores ≥4/10, current or past docetaxel use was reported by 32 (65%), androgen deprivation therapy by 47 (96%), and 28 (57%) had been or were currently enrolled in a clinical trial. Conclusions: Pain is sufficiently prevalent in men with metastatic prostate cancer to enable prospective assessment of palliation endpoints in clinical trials. No significant financial relationships to disclose.
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Affiliation(s)
- E. M. Basch
- Memorial Sloan-Kettering Cancer Center, New York, NY; Food and Drug Administration, Silver Spring,; Duke Comprehensive Cancer Center, Durham, NC; Johns Hopkins, Baltimore,; M. D. Anderson Cancer Center, Houston, TX; OHSU Cancer Institute, Portland, OR
| | - L. Sit
- Memorial Sloan-Kettering Cancer Center, New York, NY; Food and Drug Administration, Silver Spring,; Duke Comprehensive Cancer Center, Durham, NC; Johns Hopkins, Baltimore,; M. D. Anderson Cancer Center, Houston, TX; OHSU Cancer Institute, Portland, OR
| | - M. Fruscione
- Memorial Sloan-Kettering Cancer Center, New York, NY; Food and Drug Administration, Silver Spring,; Duke Comprehensive Cancer Center, Durham, NC; Johns Hopkins, Baltimore,; M. D. Anderson Cancer Center, Houston, TX; OHSU Cancer Institute, Portland, OR
| | - L. Burke
- Memorial Sloan-Kettering Cancer Center, New York, NY; Food and Drug Administration, Silver Spring,; Duke Comprehensive Cancer Center, Durham, NC; Johns Hopkins, Baltimore,; M. D. Anderson Cancer Center, Houston, TX; OHSU Cancer Institute, Portland, OR
| | - R. Kane
- Memorial Sloan-Kettering Cancer Center, New York, NY; Food and Drug Administration, Silver Spring,; Duke Comprehensive Cancer Center, Durham, NC; Johns Hopkins, Baltimore,; M. D. Anderson Cancer Center, Houston, TX; OHSU Cancer Institute, Portland, OR
| | - D. George
- Memorial Sloan-Kettering Cancer Center, New York, NY; Food and Drug Administration, Silver Spring,; Duke Comprehensive Cancer Center, Durham, NC; Johns Hopkins, Baltimore,; M. D. Anderson Cancer Center, Houston, TX; OHSU Cancer Institute, Portland, OR
| | - M. A. Carducci
- Memorial Sloan-Kettering Cancer Center, New York, NY; Food and Drug Administration, Silver Spring,; Duke Comprehensive Cancer Center, Durham, NC; Johns Hopkins, Baltimore,; M. D. Anderson Cancer Center, Houston, TX; OHSU Cancer Institute, Portland, OR
| | - P. Matthew
- Memorial Sloan-Kettering Cancer Center, New York, NY; Food and Drug Administration, Silver Spring,; Duke Comprehensive Cancer Center, Durham, NC; Johns Hopkins, Baltimore,; M. D. Anderson Cancer Center, Houston, TX; OHSU Cancer Institute, Portland, OR
| | - T. M. Beer
- Memorial Sloan-Kettering Cancer Center, New York, NY; Food and Drug Administration, Silver Spring,; Duke Comprehensive Cancer Center, Durham, NC; Johns Hopkins, Baltimore,; M. D. Anderson Cancer Center, Houston, TX; OHSU Cancer Institute, Portland, OR
| | - H. I. Scher
- Memorial Sloan-Kettering Cancer Center, New York, NY; Food and Drug Administration, Silver Spring,; Duke Comprehensive Cancer Center, Durham, NC; Johns Hopkins, Baltimore,; M. D. Anderson Cancer Center, Houston, TX; OHSU Cancer Institute, Portland, OR
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Mocanu EV, Kondaveeti N, Kelly J, Hennelly B, Burke L, Hughes C. First Irish birth following IVF therapy using antagonist protocol. Ir J Med Sci 2009; 179:455-7. [PMID: 19347389 DOI: 10.1007/s11845-009-0336-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2008] [Accepted: 03/11/2009] [Indexed: 10/20/2022]
Abstract
BACKGROUND During in vitro fertilization (IVF), the prevention of a premature LH surge was traditionally achieved using a gonadotrophin releasing hormone agonist (GnRH-a), and more recently, a GnRH antagonist. AIMS We report a case of a 37 year old treated using the GnRH antagonist in a second completed cycle of IVF. METHODS IVF was performed for primary infertility of 5-year duration due to frozen pelvis secondary to endometriosis. RESULTS Following controlled ovarian hyperstimulation, oocyte recovery and fertilization, cleavage and transfer of two zygotes, a pregnancy established. A twin gestation was diagnosed at 7-weeks scan and pregnancy ended with the delivery of twin girls by emergency caesarean section. CONCLUSION This is a first report of a delivery following IVF using the antagonist protocol in Ireland. Such therapy is patient friendly and its use should be introduced on a larger scale in clinical practice.
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Affiliation(s)
- E V Mocanu
- HARI Unit, Rotunda Hospital, Dublin 1, Ireland.
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Genovese MC, Breedveld FC, Emery P, Cohen S, Keystone E, Matteson EL, Baptiste Y, Chai A, Burke L, Reiss W, Sweetser M, Shaw TM. Safety of biological therapies following rituximab treatment in rheumatoid arthritis patients. Ann Rheum Dis 2009; 68:1894-7. [PMID: 19155233 DOI: 10.1136/ard.2008.101675] [Citation(s) in RCA: 57] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
OBJECTIVE To assess the safety of biological disease-modifying antirheumatic drugs (DMARD) in rheumatoid arthritis (RA) patients following rituximab. METHODS RA patients who participated in an international rituximab clinical trial programme were included. Patients who had received one or more rituximab courses and entered safety follow-up (SFU) were permitted additional biological DMARD. Serious infection events (SIE) were collected. RESULTS Of 185 of 2578 patients who entered SFU and received another biological DMARD, 88.6% had peripheral B-cell depletion at the time of initiation of another biological agent. Thirteen SIE (6.99 events/100 patient-years) occurred following rituximab but before another biological DMARD and 10 SIE (5.49 events/100 patient-years) occurred following another biological DMARD. SIE were of typical type and severity for RA patients. 153 had received one or more tumour necrosis factor inhibitor(s). No fatal or opportunistic infections occurred. CONCLUSIONS In this analysis, treatment with biological DMARD after rituximab was not associated with an increased serious infection rate. Sample size with limited follow-up restricts definitive conclusions.
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Affiliation(s)
- M C Genovese
- Stanford University School of Medicine, Palo Alto, California, USA.
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Clements JA, Dong Y, Loessner D, Tan O, Sieh S, Reichert J, Burke L, Stephens C, Lawrence M, Stansfield S, Swedberg J, Ramsay A, Hooper J, Harris J, Hutmacher D. 009. KALLIKREIN-RELATED PROTEASES AS NOVEL THERAPEUTIC TARGETS IN PROSTATE AND OVARIAN CANCER. Reprod Fertil Dev 2009. [DOI: 10.1071/srb09abs009] [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] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
The kallikrein-related (KLKs) peptidases are implicated in prostate and ovarian cancer invasion/metastasis via activation of growth factors, proteases and extracellular matrix degradation involved in. In our published work, we used cell biology approaches to show novel associations of KLK peptidases with processes indicative of metastasis and the potential of our novel sunflower trypsin inhibitor scaffold-engineered KLK4 inhibitor. Our current studies are directed towards discovering the precise KLK target proteins/substrates and the subsequent signalling pathways involved in these events in order to determine their therapeutic target potential. In this regard, we are using novel tissue engineered biomimetic 3D gel matrices to better mimic the in vivo micro-environment of prostate cancer cells especially in bone metastasis and peritoneal invasion in ovarian cancer. Pilot studies show that PC3 cells cultured on an osteoblast-derived bone matrix undergo an EMT-like change but remain dispersed on the cell surface. In contrast, LNCaP cells cluster aligning with the fibrillar structure as they invade into the bone matrix as typically seen in vivo. KLK4 proteolysis of the osteoblast-derived bone matrix has identified additional novel substrates. In addition, we are exploring the cell biology that underlies the reported high KLK4 or KLK7 levels associated with poorer outcome in women with epithelial ovarian cancer (EOC). Of note, KLK4 or KLK7 transfected SKOV3 EOC cells have increased chemoresistance to taxol and/or cisplastin suggesting a mechanism for this poor outcome. Furthermore, KLK7 transfected SKOV-3 cells form multicellular aggregates (MCA) in agarose suspension (a process indicative of peritoneal tumour cell spread seen in ascites fluid clinically) which can be reversed by a KLK7 blocking antibody indicating the critical role played by KLK7 in this event. These new paradigms are providing novel information on the role of KLK peptidases in prostate and ovarian cancer progression and their potential as novel therapeutic targets.
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Abstract
Metaldehyde poisoning is rare. This case report details the largest toxic dose of self-poisoning with metaldehyde ever recorded in the literature to the authors' knowledge, the aim being to emphasise the features of metaldehyde toxicity and the potential for good clinical outcome. The patient was admitted unconscious with features consistent with poisoning. Appropriate critical care was instituted early with correction of his acid-base disorder, ventilatory support, correction of haemodynamic instability, anticonvulsant therapy and early admission to the critical care unit. An almost complete recovery was seen over the following weeks, the only lasting deficit being to short-term memory, a finding common to other reported incidents of metaldehyde toxicity. This case is notable in that the patient took more than one and a half times what is considered to be a lethal dose of metaldehyde (the largest reported), but has had a remarkably good clinical outcome that is proposed to be due to methodical and timely interventions delivered according to basic principles irrespective of the absence of the early identification of the poison. The case demonstrates several of the key features of metaldehyde toxicity and the emergency management of such a situation. The published literature pertaining to metaldehyde overdose is reviewed.
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Affiliation(s)
- C Bleakley
- Department of Acute Medicine, Belfast City Hospital, Lisburn Road, Belfast, Northern Ireland BT9 7AB, UK.
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Burke L, Saad A, Miller L, Abraham J. Smoking habits among cancer survivors. J Clin Oncol 2008. [DOI: 10.1200/jco.2008.26.15_suppl.20699] [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: 11/20/2022] Open
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Abstract
1543 Background: Breast cancer survival is improved by early diagnosis. The role of self-exam as an adjunct to screening mammography has been questioned as some studies suggest that self-examinations lead to unnecessary diagnostic procedures without improving survival. Methods: Patients who had been diagnosed with breast cancer and who were attending a university-based cancer clinic were interviewed, using a structured questionnaire, to determine the way in which their breast cancers were first identified. Inference was conducted using exact methods (Clopper-Pearson intervals for proportions and Fisher’s test for odds ratios). Results: Breast cancers were first identified by mammogram in 16% of women, by provider in 9%, by the spouse in 2%. Seventy-five percent (95% CI=61% to 85%) of patients first identified their tumors by self exam. Self-identifiers occurred in all demographic groups. These women included those with all types of insurance: private insurance (68%), Medicare (60%), Medicaid (100%), or no insurance (85%); all levels of education: 77% with college education and 75% with high school; all income levels: for example, among 79% with annual incomes of <$10K and 73% with incomes >$50K; and among both black (91%) and white (66%) women. Of the women who reported both regular mammograms and regular self-examination (N=35), 77% (95% CI=60 to 90%) were self-identifiers. However, cancers found by mammography were more likely to be Stage I than were those identified by self-examination (odds ratio=3.9, 95% CI .9 to 17.5, p=.047). Conclusions: Most breast cancers (75%) were found by self-examination, even among women who had regular mammography. We did not find any demographic factor that predicted mammography as the primary method of tumor identification. These findings suggest that self-examination remains an important method of breast cancer identification. No significant financial relationships to disclose.
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Affiliation(s)
- A. Rosenberg
- Brody School of Medicine at East Carolina University, Greenville, NC
| | - L. Burke
- Brody School of Medicine at East Carolina University, Greenville, NC
| | - P. Vos
- Brody School of Medicine at East Carolina University, Greenville, NC
| | - D. Liles
- Brody School of Medicine at East Carolina University, Greenville, NC
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Abstract
Increasing fragmentation threatens the primary healthcare team
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Sethi NK, Burke L, Torgovnick J, Arsura E. Transcortical sensory aphasia as a result of left frontal cortical-subcortical infarction. A case report. Eur Neurol 2006; 57:52-3. [PMID: 17114885 DOI: 10.1159/000097012] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2006] [Accepted: 09/07/2006] [Indexed: 11/19/2022]
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Burke L. 410 Guidelines for fluid replacement for athletes: updates. J Sci Med Sport 2005. [DOI: 10.1016/s1440-2440(17)30908-8] [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: 10/19/2022]
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Abstract
OBJECTIVE To update United States steroidal contraceptive use data for the period 1989 to 1994. STUDY DESIGN Pharmaceutical marketing data were used to examine trends in the utilization and distribution of oral contraceptives, Norplant, and Depo-Provera. RESULTS There were 56.8 million prescriptions for oral contraceptives dispensed through retail pharmacies in 1994. Estrogen and progestin doses remained fairly stable over time. The average ethinyl estradiol dose of formulations was approximately 34 microg per pill. Mentions for oral contraceptives among 35- to 44-year-old women increased. Approximately 169,000 Norplant systems were distributed from 1991 through 1994. More than 1.5 million milliliters of Depo-Provera were distributed from 1993 to 1994. CONCLUSIONS Oral contraceptives remain a popular form of contraception. Parenteral formulations have been rapidly accepted.
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Affiliation(s)
- B B Gerstman
- San Jose State University, Department of Health Science, San Jose, CA 95192-0052, USA.
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