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Cance JD, Adams ET, D'Amico EJ, Palimaru A, Fernandes CSF, Fiellin LE, Bonar EE, Walton MA, Komro KA, Knight D, Knight K, Rao V, Youn S, Saavedra L, Ridenour TA, Deeds B. Leveraging the Full Continuum of Care to Prevent Opioid Use Disorder. Prev Sci 2023; 24:30-39. [PMID: 37261635 PMCID: PMC10689575 DOI: 10.1007/s11121-023-01545-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/11/2023] [Indexed: 06/02/2023]
Abstract
Substance use disorder prevention programs are most effective when matched appropriately to the baseline risk of the population. Individuals who misuse opioids often have unique risk profiles different from those who use other substances such as alcohol or cannabis. However, most substance use prevention programs are geared toward universal audiences, neglecting key inflection points along the continuum of care. The HEAL Prevention Cooperative (HPC) is a unique cohort of research projects that represents a continuum of care, from community-level universal prevention to indicated prevention among older adolescents and young adults who are currently misusing opioids or other substances. This paper describes the theoretical basis for addressing opioid misuse and opioid use disorder across the prevention continuum, using examples from research projects in the HPC.
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Affiliation(s)
- J D Cance
- RTI International, Research Triangle Park, Durham, NC, USA.
| | - E T Adams
- RTI International, Research Triangle Park, Durham, NC, USA
| | | | | | | | - L E Fiellin
- Yale University School of Medicine, New Haven, CT, USA
| | - E E Bonar
- University of Michigan, Ann Arbor, MI, USA
- Injury Prevention Center, University of Michigan, Ann Arbor, MI, USA
- Addiction Center, University of Michigan, Ann Arbor, MI, USA
| | - M A Walton
- University of Michigan, Ann Arbor, MI, USA
- Injury Prevention Center, University of Michigan, Ann Arbor, MI, USA
- Addiction Center, University of Michigan, Ann Arbor, MI, USA
| | - K A Komro
- Rollins School of Public Health, Emory University, Atlanta, USA
| | - D Knight
- Texas Christian University, Fort Worth, TX, USA
| | - K Knight
- Texas Christian University, Fort Worth, TX, USA
| | - V Rao
- Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - S Youn
- Massachusetts General Hospital, Harvard Medical School, Boston, MA, USA
| | - L Saavedra
- RTI International, Research Triangle Park, Durham, NC, USA
| | - T A Ridenour
- RTI International, Research Triangle Park, Durham, NC, USA
| | - B Deeds
- National Institute on Drug Abuse, MD, Bethesda, USA
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Ioannou A, Chacko L, Kotecha T, Patel RK, Razvi Y, Porcari A, Venneri L, Martinez-Naharro A, Knight D, Brown J, Hawkins PN, Gillmore JD, Fontana M. Myocardial ischaemia in cardiac amyloidosis: a change of perspective. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1761] [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
Introduction
Cardiac involvement is the main driver of clinical outcomes in systemic amyloidosis; however many clinical observations are not explained by the concept of replacement of the interstitium by amyloid material. Preliminary studies support the hypothesis that myocardial ischaemia contributes to cellular damage.
Purpose
This study assesses the presence and mechanisms of myocardial ischaemia using cardiovascular magnetic resonance (CMR) with multiparametric mapping and histopathological assessment.
Methods
Ninety-two patients with cardiac amyloidosis (CA) (AL = 41, ATTR = 51) and 97 without CA (3-vessel coronary disease (3VD) = 47, unobstructed coronary arteries = 26, healthy volunteers (HV) = 24) underwent quantitative stress perfusion CMR with myocardial blood flow (MBF) mapping. Twenty-six myocardial biopsies and 3 explanted hearts with CA were analysed histopathologically.
Results
Stress MBF was severely reduced in patients with CA with lower values than patients with 3VD, unobstructed coronary arteries and HV (CA = 1.03±0.51 ml/min/g, 3VD = 1.35±0.50 ml/min/g, Unobstructed coronaries = 2.92±0.52 ml/min/g, HV = 3.14±0.69 ml/min/g; CA vs 3VD p=0.008, CA vs Unobstructed coronaries p<0.001, CA vs HV p<0.001). After adjustment for intracellular volume the MBF in patients with CA remained significantly lower than in HV (stress MBF/ICV: AL = 2.24±1.12, ATTR = 2.22±0.93, HV = 4.38±1.06; AL vs. ATTR p=1.000, AL vs HV p<0.001, ATTR vs. HV p<0.001). Myocardial perfusion reserve (MPR) was severely reduced in CA patients, compared to HV and patients with unobstructed coronary arteries, with the degree of reduction being comparable only to patients with 3VD (CA = 1.55±0.60, 3VD = 1.54±0.51, unobstructed coronaries = 2.78±0.70, HV = 4.08±0.86; CA vs 3VD p=1.000, CA vs unobstructed coronary arteries p<0.001, CA vs. HV p<0.001). Myocardial perfusion abnormalities correlated with amyloid burden, systolic and diastolic function, structural parameters and blood biomarkers (p<0.05). Biopsies demonstrated diffuse hypoxia with abnormal VEGF staining in cardiomyocytes and endothelial cells. Amyloid infiltration in intramural arteries was associated with severe lumen reduction in 20% of vessels, and severe reduction in capillary density.
Conclusion
CA is associated with severe myocardial ischaemia demonstrable by histology and CMR stress perfusion mapping. Histological evaluation indicates a complex pathophysiology, where systolic and diastolic dysfunction, amyloid infiltration of the epicardial arteries and disruption and rarefaction of the capillaries play a role in contributing to myocardial ischaemia.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- A Ioannou
- UCL , Greater London , United Kingdom
| | - L Chacko
- UCL , Greater London , United Kingdom
| | - T Kotecha
- UCL , Greater London , United Kingdom
| | - R K Patel
- UCL , Greater London , United Kingdom
| | - Y Razvi
- UCL , Greater London , United Kingdom
| | - A Porcari
- UCL , Greater London , United Kingdom
| | - L Venneri
- UCL , Greater London , United Kingdom
| | | | - D Knight
- UCL , Greater London , United Kingdom
| | - J Brown
- UCL , Greater London , United Kingdom
| | | | | | - M Fontana
- UCL , Greater London , United Kingdom
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Ioannou A, Patel RK, Razvi Y, Porcari A, Knight D, Martinez-Naharro A, Kotecha T, Venneri L, Chacko L, Hawkins PN, Gillmore JD, Fontana M. Multi-imaging characterisation of cardiac phenotype in different types of amyloidosis. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1762] [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
Background
Bone scintigraphy is extremely valuable when assessing patients with suspected cardiac amyloidosis (CA), but the clinical significance and associated phenotype of different degrees of myocardial tracer uptake across different types of amyloidosis is yet to be defined.
Purpose
We sought to define the phenotypes of patients with varying degrees of cardiac uptake on bone scintigraphy, across multiple types of systemic amyloidosis using extensive characterisation comprising of biomarkers, echocardiographic and cardiac magnetic resonance (CMR) imaging.
Methods
A total of 296 patients (117 immunoglobulin light-chain [AL] amyloidosis, 165 transthyretin [ATTR] amyloidosis, 7 apolipoprotein-A1-amyloidosis [AApoAI],and 7 apolipoprotein-A4-amyloidosis [AApoA4]) underwent deep characterisation of their cardiac phenotype.
Results
AL-amyloidosis patients with grade 0 myocardial radiotracer uptake spanned the spectrum of CMR findings from no evidence of CA to characteristic features of CA, while AL-amyloidosis patients with grade 1–3 always produced characteristic CMR features. In ATTR-amyloidosis the CA burden strongly correlated with myocardial tracer uptake (correlation between bone scintigraphy cardiac uptake and CMR derived extracellular volume: R=0.88, 95% CI [0.84–0.91], P<0.001), except in patients with the Ser77Tyr variant. AApoAI-amyloidosis presented with grade 0–1 myocardial tracer uptake, and unique features of disproportionate right sided involvement such as disproportionate right ventricular (RV) and right atrial uptake on bone scintigraphy, RV free wall thickening, and tricuspid valve thickening and dysfunction. Within our cohort, AApoAIV-amyloidosis always presented with grade 0 myocardial tracer uptake, and characteristic features of CA on CMR. All AL-amyloidosis patients with grade 1 myocardial tracer uptake had characteristic CMR features of CA (n=48, 100%), while only ATTR-amyloidosis grade 1 patients with the Ser77Tyr variant had characteristic features of CA on CMR (n=5, 11.4%). Following the exclusion of Ser77Tyr and AApoAI, a CMR showing characteristic features of CA or an extracellular volume >0.40 in a patient with grade 1 myocardial tracer uptake had a sensitivity and specificity of 100% for diagnosing AL-amyloidosis.
Conclusion
Deep characterisation of the cardiac phenotype in different types of amyloidosis, across a range of bone scintigraphy cardiac uptake grades has identified clear differences between each amyloidosis type. The distinctive characteristics in each cohort has allowed the development of a diagnostic pathway to help define the diagnostic differentials and the clinical phenotype in each individual patient, following comprehensive assessment with bone scintigraphy and CMR.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- A Ioannou
- UCL , Greater London , United Kingdom
| | - R K Patel
- UCL , Greater London , United Kingdom
| | - Y Razvi
- UCL , Greater London , United Kingdom
| | - A Porcari
- UCL , Greater London , United Kingdom
| | - D Knight
- UCL , Greater London , United Kingdom
| | | | - T Kotecha
- UCL , Greater London , United Kingdom
| | - L Venneri
- UCL , Greater London , United Kingdom
| | - L Chacko
- UCL , Greater London , United Kingdom
| | | | | | - M Fontana
- UCL , Greater London , United Kingdom
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Knight D, Lonabaugh K, Ahrens L, List R, Gott K, Garrod A, Froh D. 92: Improving pneumococcal polysaccharide vaccination rates in a pediatric cystic fibrosis clinic. J Cyst Fibros 2021. [DOI: 10.1016/s1569-1993(21)01517-4] [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: 11/17/2022]
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Ahrens L, List R, Gott K, Lonabaugh K, Haney H, Moore L, Knight D, Garrod A, Mason K, Froh D. 140: Oh gee! Time tested OGTT annual screening improvement: A single-center experience. J Cyst Fibros 2021. [DOI: 10.1016/s1569-1993(21)01565-4] [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: 11/27/2022]
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Thornton G, Shetye A, Knott K, Razvi Y, Vimalesvaran K, Kurdi H, Artico J, Yousef S, Antonakaki D, Kellman P, Knight D, Cole GD, Moon JC, Fontana M, Treibel TA. Myocardial perfusion after COVID-19 infection: No persisting impaired myocardial blood flow in surviving patients. Eur Heart J Cardiovasc Imaging 2021. [PMCID: PMC8344937 DOI: 10.1093/ehjci/jeab090.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
Funding Acknowledgements Type of funding sources: None. Background Acute myocardial damage is common in hospitalized patients with severe COVID-19, with evidence of myocardial infarction and myocarditis demonstrated on cardiovascular magnetic resonance (CMR). Post-mortem studies have also implicated microvascular thrombosis, which may cause persistent microvascular disease. Purpose To determine the long-term coronary sequelae in recovered COVID-19 using multiparametric CMR including state-of-the-art inline quantitative stress myocardial blood flow (sMBF) mapping to assess global and regional sMBF. Methods Prospective, multicentre observational study of recovered COVID-19 patients scanned at three London CMR units. Results were compared to a propensity-matched, pre-COVID chest pain cohort (104 patients referred for perfusion CMR, with subsequently demonstrated unobstructed coronary arteries) and 27 healthy volunteers (HV). Perfusion image analysis was performed using a novel artificial intelligence approach deriving global and regional stress and rest MBF with a cut-off of >2.25mL/g/min signifying normal sMBF and <1.82mL/g/min abnormal sMBF (Kotecha JCVI 2019). Results 104 recovered, post-COVID patients (median age 62 years, 76% male; 89[87%] hospitalised, 41/89[46%] requiring ICU) underwent adenosine-stress perfusion CMR at a median 131(IQR 43-179) days from COVID-19 diagnosis. Median LVEF was 67% (IQR 60-71%; 12 (11.5%) with impaired LVEF), 51 patients (49%) had late gadolinium enhancement (LGE); 18% infarct-pattern and 33% non-ischaemic LGE. Global stress MBF in post-COVID patients was no different to age-, sex- and co-morbidities-matched controls (2.57 ± 0.77 vs. 2.40 ± 0.75 ml/g/min, p = 0.11, Figure 1), though lower than HV (3.00 ± 0.76 ml/g/min, p = 0.001). Post-COVID, multivariate predictors of low sMBF were male sex (OR 0.57, 95%CI 0.41-0.80, p = 0.001) and hypertension (OR 0.67, 95%CI 0.51-0.88, p = 0.004), but not COVID-19 disease severity (ICU admission) or presence of scar (ischemic/non-ischemic). 21/42 with reduced sMBF (<2.25mL/g/min) had regional perfusion defects consistent with epicardial coronary disease. Conclusions COVID-19 survivors do not demonstrate evidence of reduced global MBF by CMR compared to risk factor matched controls. Stress perfusion CMR identifies etiology of acute myocardial damage (infarction/myocarditis) and presence of occult coronary ischemia.
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Affiliation(s)
- G Thornton
- University College London, London, United Kingdom of Great Britain & Northern Ireland
| | - A Shetye
- University College London, London, United Kingdom of Great Britain & Northern Ireland
| | - K Knott
- King"s College Hospital NHS Foundation Trust, London, United Kingdom of Great Britain & Northern Ireland
| | - Y Razvi
- University College London, London, United Kingdom of Great Britain & Northern Ireland
| | - K Vimalesvaran
- Imperial College London, London, United Kingdom of Great Britain & Northern Ireland
| | - H Kurdi
- Barts Health NHS Trust, London, United Kingdom of Great Britain & Northern Ireland
| | - J Artico
- Barts Health NHS Trust, London, United Kingdom of Great Britain & Northern Ireland
| | - S Yousef
- Barts Health NHS Trust, London, United Kingdom of Great Britain & Northern Ireland
| | - D Antonakaki
- Barts Health NHS Trust, London, United Kingdom of Great Britain & Northern Ireland
| | - P Kellman
- National Heart Lung and Blood Institute, Bethesda, United States of America
| | - D Knight
- University College London, London, United Kingdom of Great Britain & Northern Ireland
| | - GD Cole
- Imperial College London, London, United Kingdom of Great Britain & Northern Ireland
| | - JC Moon
- University College London, London, United Kingdom of Great Britain & Northern Ireland
| | - M Fontana
- University College London, London, United Kingdom of Great Britain & Northern Ireland
| | - TA Treibel
- University College London, London, United Kingdom of Great Britain & Northern Ireland
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Perumalsamy S, Hong S, Knight D, Riley T. Laboratory surveillance of paediatric Clostridium difficile infections in healthcare and community settings in Australia, from 2013 to at present. Int J Infect Dis 2020. [DOI: 10.1016/j.ijid.2020.09.1147] [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: 10/22/2022] Open
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Chacko L, Martinez-Naharro A, Kotecha T, Martone R, Hutt D, Lane T, Knight D, Moon J, Kellman P, Hawkins P, Gillmore J, Fontana M. Regression of cardiac amyloid deposits with novel therapeutics: reaching new frontiers in cardiac ATTR amyloidosis. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.2117] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [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
Background
Cardiac involvement is the main driver of outcome in ATTR amyloidosis. Advances in therapeutics hold potential in transforming the course of the disease but the impact on cardiac amyloid load is unknown. The aim of this study was to evaluate the impact of patisiran, a new double stranded RNA based gene silencing therapy and a stabilizer, diflunisal, on cardiac amyloid load as measured by CMR and T1 mapping, in patients with ATTR amyloidosis.
Methods and results
Thirty-two patients with hereditary cardiac amyloidosis were studied. Sixteen patients received treatment with patisiran, and sixteen control subjects did not receive any disease modifying treatment. Patients were assessed with echocardiogram, CMR, NT-proBNP and six-minute walk time measurements at baseline and at 1 year (Mean interval 11.45±3.08 months in treatment group, mean interval 12.82±5.06 months in the control group). CMR analysis comprised LV volumes, T1 mapping to measure the extracellular volume (ECV) occupied by amyloid, T2 mapping and late gadolinium enhancement imaging. At 1-year follow-up, there was a substantial reduction in cardiac amyloid burden, in keeping with cardiac amyloid regression in 45% of patients on treatment. Overall the treatment group showed a reduction in ECV at 1 year follow up compared to an increase in ECV at 1 year in the control group (−1.37%, 95% CI: −3.43 to 0.68% versus 5.02%, 95% CI: 2.86% to 7.18% respectively, p<0.001). The treatment group also showed an improvement in change in 6MWT at 1 year follow up compared to 6MWT at 1 year in the control group (−8.12 meters, 95% CI: −50.8 to 34.6 meters in the treatment group versus −132.27 meters, 95% CI: −216 to −48.6 meters in the control group, p=0.002). The treatment group showed a reduction in BNP at 1 year follow up compared to an increase in the control group (−567.87, 95% CI: −1288.90 to 153.15 in the treatment group versus 2004, 95% CI: 12.82 to 3995.45 in the control group, p<0.001). There was no significant difference from baseline and 1-year data between the control and treatment groups for the difference in echocardiographic parameters, native T1, T2. There was a significant reduction in the percentage of injected dose by 99Tc-DPD scintigraphy in treated patients at 1 year compared to baseline.
Conclusions
These findings provide the first compelling evidence of substantial cardiac amyloid regression in ATTR amyloidosis, as well as the potential for CMR to be used to track response in treated patients with ATTR cardiac amyloidosis. Combination therapy with transthyretin knock down and stabilizing agents may well be synergistic given enhanced stoichiometry of stabilizers in the face of much reduced plasma transthyretin concentration.
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- L Chacko
- University College Hospital, London, United Kingdom
| | | | - T Kotecha
- University College Hospital, London, United Kingdom
| | - R Martone
- Careggi University Hospital, Florence, Italy
| | - D Hutt
- University College Hospital, London, United Kingdom
| | - T Lane
- University College Hospital, London, United Kingdom
| | - D Knight
- University College Hospital, London, United Kingdom
| | - J Moon
- Barts Heart Centre, London, United Kingdom
| | - P Kellman
- National Institutes of Health, Bethesda, United States of America
| | - P Hawkins
- University College Hospital, London, United Kingdom
| | - J Gillmore
- University College Hospital, London, United Kingdom
| | - M Fontana
- University College Hospital, London, United Kingdom
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Chacko L, Kotecha T, Martinez-Naharro A, Brown J, Knight D, Steriotis A, Little C, Moon J, Gilmore J, Hawkins P, Rakhit R, Patel N, Xue H, Kellman P, Fontana M. 1171Myocardial perfusion mapping in cardiac amyloidosis - exploring the spectrum from infiltration to ischaemia. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz748.0013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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
Background
Cardiac involvement is the main driver of outcome in systemic amyloidosis, but the relationship between amyloid deposits and outcomes is not well understood. The simple explanation of physical, mechanical replacement of the interstitium by amyloid seems insufficient. Preliminary studies support the hypothesis that myocardial ischaemia could contribute to cell damage.
Purpose
(1) To assess myocardial ischaemia in cardiac amyloidosis. (2) To compare patients with cardiac amyloidosis to patients assessed on invasive coronary angiography (ICA) to have normal coronary physiology (NCP), microvascular dysfunction (MVD) and triple vessel coronary disease (3VD). (3) To assess correlation of perfusion mapping to markers of disease severity and prognosis.
Methods
86 patients and 20 healthy volunteers (HV) underwent CMR at 1.5T (Siemens) with standard cine, PSIR-LGE, T1, T2, Extracellular Volume (ECV) mapping and adenosine stress with myocardial blood flow (MBF) mapping. Thirty-eight patients also underwent ICA with 3 vessel assessment of Index of Microcirculatory Resistance and Fractional Flow Reserve: 7 had cardiac amyloidosis, 8 had NCP, 15 had MVD and 8 had 3VD.
Results
Cardiac amyloidosis patients had severe reduction in stress MBF and myocardial perfusion reserve (MPR) (1.22ml/g/min±0.70 and 1.62±0.63) compared to HV (3.21ml/g/min±0.64, p<0.001 and 4.17±0.78, p<0.001), NCP (2.66±0.56, p<0.001 and 2.51±0.43, p=0.036) and MVD (2.10±0.31, p<0.001 and 2.29±0.87, p=0.014) with the degree of reduction being similar only to patients with 3VD (1.44±0.54, p=1.000 and 1.64±0.68, p=1.000) (Figure 1). Rest MBF was also lower in amyloidosis than HV. Cardiac amyloidosis stress MBF and MPR inversely correlated with amyloid burden (ECV, r=−0.715, p<0.001, transmurality of LGE, p<0.01), systolic dysfunction (EF, r=0.405, p<0.01), and blood biomarkers (NT-proBNP (r=−0.678, p<0.001) and Troponin T (r=−0.628, p<0.001)). There was a correlation between stress MBF and native T1 (r=−0.588, p<0.001) but not T2 (p=0.591). Stress MBF and MPR were early disease markers, being elevated in patients with early cardiac amyloid infiltration (raised ECV, no LGE, P<0.01 vs HV).
Conclusion
Myocardial ischaemia is common in cardiac amyloidosis – with stress MBF and MPR similar to that of patients with 3VD. The reduction correlates with the degree of amyloid infiltration and markers of adverse prognosis, highlighting the potential role of myocardial ischaemia as a key mechanism in the pathophysiology of cardiac amyloidosis.
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Affiliation(s)
- L Chacko
- University College Hospital, London, United Kingdom
| | - T Kotecha
- University College Hospital, London, United Kingdom
| | | | - J Brown
- University College Hospital, London, United Kingdom
| | - D Knight
- University College Hospital, London, United Kingdom
| | - A Steriotis
- University College Hospital, London, United Kingdom
| | - C Little
- University College Hospital, London, United Kingdom
| | - J Moon
- University College Hospital, London, United Kingdom
| | - J Gilmore
- University College Hospital, London, United Kingdom
| | - P Hawkins
- University College Hospital, London, United Kingdom
| | - R Rakhit
- University College Hospital, London, United Kingdom
| | - N Patel
- University College Hospital, London, United Kingdom
| | - H Xue
- National Institutes of Health, Bethesda, United States of America
| | - P Kellman
- National Institutes of Health, Bethesda, United States of America
| | - M Fontana
- University College Hospital, London, United Kingdom
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Chacko LA, Kotecha T, Martinez A, Brown J, Little C, Knight D, Patel N, Hawkins P, Gillmore J, Moon J, Steriotis A, Kellman P, Xue H, Fontana M. 319Myocardial perfusion mapping in cardiac amyloidosis: transformation from a disease of solely infiltration to myocardial ischaemia. Eur Heart J Cardiovasc Imaging 2019. [DOI: 10.1093/ehjci/jez102] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- L A Chacko
- University College Hospital, London, United Kingdom of Great Britain & Northern Ireland
| | - T Kotecha
- University College Hospital, London, United Kingdom of Great Britain & Northern Ireland
| | - A Martinez
- University College Hospital, London, United Kingdom of Great Britain & Northern Ireland
| | - J Brown
- University College Hospital, London, United Kingdom of Great Britain & Northern Ireland
| | - C Little
- University College Hospital, London, United Kingdom of Great Britain & Northern Ireland
| | - D Knight
- University College Hospital, London, United Kingdom of Great Britain & Northern Ireland
| | - N Patel
- University College Hospital, London, United Kingdom of Great Britain & Northern Ireland
| | - P Hawkins
- University College Hospital, London, United Kingdom of Great Britain & Northern Ireland
| | - J Gillmore
- University College Hospital, London, United Kingdom of Great Britain & Northern Ireland
| | - J Moon
- University College Hospital, London, United Kingdom of Great Britain & Northern Ireland
| | - A Steriotis
- University College Hospital, London, United Kingdom of Great Britain & Northern Ireland
| | - P Kellman
- University College Hospital, London, United Kingdom of Great Britain & Northern Ireland
| | - H Xue
- University College Hospital, London, United Kingdom of Great Britain & Northern Ireland
| | - M Fontana
- University College Hospital, London, United Kingdom of Great Britain & Northern Ireland
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Kotecha T, Monteagudo JM, Martinez-Naharro A, Little C, Chacko LIZA, Brown JM, Knight D, Hawkins PN, Moon JM, Xue H, Kellman PN, Patel N, Lockie T, Rakhit RD, Fontana M. 302Redefining assessment of adenosine stress response using CMR perfusion mapping: An alternative to splenic switch off. Eur Heart J Cardiovasc Imaging 2019. [DOI: 10.1093/ehjci/jez119] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- T Kotecha
- Royal Free Hospital , Cardiology, London, United Kingdom of Great Britain & Northern Ireland
| | - J M Monteagudo
- Royal Free Hospital , Cardiology, London, United Kingdom of Great Britain & Northern Ireland
| | - A Martinez-Naharro
- Royal Free Hospital , Cardiology, London, United Kingdom of Great Britain & Northern Ireland
| | - C Little
- Royal Free Hospital , Cardiology, London, United Kingdom of Great Britain & Northern Ireland
| | - L I Z A Chacko
- Royal Free Hospital , Cardiology, London, United Kingdom of Great Britain & Northern Ireland
| | - J M Brown
- Royal Free Hospital , Cardiology, London, United Kingdom of Great Britain & Northern Ireland
| | - D Knight
- Royal Free Hospital , Cardiology, London, United Kingdom of Great Britain & Northern Ireland
| | - P N Hawkins
- Royal Free Hospital , Cardiology, London, United Kingdom of Great Britain & Northern Ireland
| | - J M Moon
- Barts Health NHS Trust, London, United Kingdom of Great Britain & Northern Ireland
| | - H Xue
- National Institutes of Health, Bethesda, United States of America
| | - P N Kellman
- National Institutes of Health, Bethesda, United States of America
| | - N Patel
- Royal Free Hospital , Cardiology, London, United Kingdom of Great Britain & Northern Ireland
| | - T Lockie
- Royal Free Hospital , Cardiology, London, United Kingdom of Great Britain & Northern Ireland
| | - R D Rakhit
- Royal Free Hospital , Cardiology, London, United Kingdom of Great Britain & Northern Ireland
| | - M Fontana
- Royal Free Hospital , Cardiology, London, United Kingdom of Great Britain & Northern Ireland
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Gungaabayar A, Iwaasa A, Knight D, Penner G, Warkentin T, Biligetu B. PSVIII-28 Forage pea-cereal mixtures for greenfeed production in Saskatchewan. J Anim Sci 2018. [DOI: 10.1093/jas/sky404.471] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [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 Gungaabayar
- Department of Plant Sciences, College of Agriculture and Bioresources, University of Saskatchewan,Saskatoon, SK, Canada
| | - A Iwaasa
- Swift Current Research and Development Centre, Agriculture and Agri-Food Canada, Swift Current, SK, Canada
| | - D Knight
- Department of Soil Science, College of Agriculture and Bioresources, University of Saskatchewan,Saskatoon, SK, Canada
| | - G Penner
- Department of Animal and Poultry Science, University of Saskatchewan,Saskatoon, SK, Canada
| | - T Warkentin
- Department of Plant Sciences, College of Agriculture and Bioresources, University of Saskatchewan,Saskatoon, SK, Canada
| | - B Biligetu
- Department of Plant Sciences, College of Agriculture and Bioresources, University of Saskatchewan,Saskatoon, SK, Canada
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Boldrini M, Baggiano A, Naharro AM, Kotecha T, Rezk T, Fayed H, Knight D, Moon J, Kellman P, Gillmore J, Hawkins P, Fontana M. 1161Accuracy of non contrast magnetic resonance for clinical diagnosis of cardiac amyloidosis - a 868 patient prospective study. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.1161] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- M Boldrini
- University College London, UCL CMR Department, National Amyloidosis Center, Royal Free Hospital, London, United Kingdom
| | | | - A M Naharro
- University College London, UCL CMR Department, National Amyloidosis Center, Royal Free Hospital, London, United Kingdom
| | - T Kotecha
- University College London, UCL CMR Department, National Amyloidosis Center, Royal Free Hospital, London, United Kingdom
| | - T Rezk
- University College London, National Amyloidosis Center, London, United Kingdom
| | - H Fayed
- University College London, UCL CMR Department, National Amyloidosis Center, Royal Free Hospital, London, United Kingdom
| | - D Knight
- University College London, UCL CMR Department, National Amyloidosis Center, Royal Free Hospital, London, United Kingdom
| | - J Moon
- Barts Health NHS Trust, London, United Kingdom
| | - P Kellman
- National Institute of Health (Home), Washington, United States of America
| | - J Gillmore
- University College London, National Amyloidosis Center, London, United Kingdom
| | - P Hawkins
- University College London, National Amyloidosis Center, London, United Kingdom
| | - M Fontana
- University College London, UCL CMR Department, National Amyloidosis Center, Royal Free Hospital, London, United Kingdom
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Norrington K, Martinez-Naharro A, Kotecha T, Francis R, Hutt DF, Rezk T, Quarta C, Treibel TA, Whelan CJ, Knight D, Kellman P, Ruberg FL, Gillmore JD, Moon JC, Hawkins PN, Fontana M. 015 Clinical utility of T1 mapping in cardiac ATTR amyloidosis – diagnostic performance and prognostic capability. Heart 2017. [DOI: 10.1136/heartjnl-2017-311399.15] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Gevaert AB, Borizanova A, Graziani F, Galuszka OM, Stathogiannis K, Lervik Nilsen LC, Nishino S, Willis J, Venner C, Luo XX, Van De Heyning CM, Castaldi B, Michalski BW, Wang TL, Aktemur T, Dorlet S, Verseckaite R, Amzulescu MS, Brecht A, Brand M, Galli E, Murzilli R, Bica R, Teixeira R, Schmid J, Miglioranza MH, Cherneva ZH, Gheghici S, Pernigo M, Rafael D, Van Craenenbroeck AH, Shivalkar B, Lemmens K, Vrints CJ, Van Craenenbroeck EM, Somleva D, Zlatareva- Gronkova N, Kinova E, Goudev A, Camporeale A, Pieroni M, Pedicino D, Laurito MP, Verrecchia E, Lanza GA, Manna R, Crea F, Reinthaler M, Rutschow S, Gross M, Landmesser U, Kasner M, Toutouzas K, Drakopoulou M, Latsios G, Synetos A, Kaitozis O, Trantalis G, Mastrokostopoulos A, Kotronias R, Tousoulis D, Brekke BB, Aase SA, Lonnebakken MT, Stensvag D, Amundsen B, Torp H, Stoylen A, Watanabe N, Kimura T, Nakama T, Furugen M, Koiwaya H, Ashikaga K, Kuriyama N, Shibata Y, Augustine DX, Knight D, Sparey J, Coghlan G, Easaw J, Huttin O, Voilliot D, Mercy M, Villemin T, Olivier A, Mandry D, Chaouat A, Juilliere Y, Selton-Suty C, Fang F, Li S, Zhang ZH, Yu CM, Bertrand PB, De Maeyer C, De Bock D, Paelinck BP, Vrints CJ, Claeys MJ, Reffo E, Balzarin M, Zulian F, Milanesi O, Miskowiec D, Kupczynska K, Peczek L, Nawrot B, Lipiec P, Kasprzak JD, Li H, Jin XY, Poci N, Kaymaz C, Huttin O, Voilliot D, Venner C, Villemin T, Manenti V, Carillo S, Chabot F, Juilliere Y, Selton-Suty C, Mizariene V, Rimkeviciute D, Bieseviciene M, Jonkaitiene R, Jurkevicius R, Roy C, Slimani A, Boileau L, De Meester C, Vancraeynest D, Pasquet A, Vanoverschelde JL, Pouleur AC, Gerber BL, Oertelt-Prigione S, Seeland U, Ruecke M, Regitz-Zagrosek V, Stangl V, Knebel F, Laux D, Roeing J, Butz T, Christ M, Grett M, Wennemann R, Trappe HJ, Fournet M, Leclercq C, Samset E, Daubert JC, Donal E, Leo LA, Pasotti E, Klersy C, Moccetti T, Faletra FF, Dobre D, Darmon S, Dumitrescu S, Calistru P, Monteiro R, Ribeiro M, Garcia J, Cardim N, Goncalves L, Kaufmann R, Grubler MR, Verheyen N, Weidemann F, Binder JS, Santanna RT, Rover MM, Leiria T, Kalil R, Picano E, Gargani L, Kuneva ZK, Vasilev DV, Ianula R, Dasoveanu M, Calin C, Homentcovsci C, Siliste R, Bergamini C, Mantovani A, Bonapace S, Lipari P, Barbieri E, Bonora E, Targher G, Camarozano AC, Pereira Da Cunha CL, Padilha SL, Souza AM, Freitas AKE. HIT Poster session 1P154Preclinical diastolic dysfunction is related to impaired endothelial function in patients with chronic kidney diseaseP155Early detection of left atrial and left ventricular abnormalities in hypertensive and obese womenP156Right ventricle preserved systolic function irrespective of right ventricular hypertrophy and disease severity in anderson fabry diseaseP157Left atrial volume and function in patients undergoing percutaneous mitral valve repairP158Impact of left ventricular dysfunction on outcomes of patients undergoing direct TAVI with a self-expanding bioprosthesisP159Anatomic Doppler spectrum – retrospective spectral tissue Doppler from ultra high frame rate tissue Doppler imaging for evaluation of tissue deformationP160Phasic dynamics of ischaemic mitral regurgitation after primary coronary intervention in acute myocardial infarction: serial echocardiographic assessment from emergency room to long-term follow-upP161Reproducibility of 3DE RV volumes - novel insights at a regional levelP162Pulmonary vascular capacitance as assessed by echocardiography in pulmonary arterial hypertensionP163Three-dimensional endocardial area strain: a novel parameter for quantitative assessment of global left ventricular systolic functionP164Role of exercise hemodynamics assessed by echocardiography on symptom reduction after MitraClipP165Early identification of ventricular dysfunction in patients with juvenile systemic sclerosisP166Heart failure with and without preserved ejection fraction - the role of biomarkers in the aspect of global longitudinal strainP167Complex systolic deformation of aortic root: insights from two dimensional speckle tracking imageP168Volumetric and deformational imaging usind 2d strain and 3d echocardiography in patients with pulmonary hypertensionP169Influence of pressure load and right ventricular morphology and function on tricuspid regurgitation in pulmonary arterial hypertensionP170Left ventricular myocardial diastolic deformation analysis by 2D speckle tracking echocardiography and relationship with conventional diastolic parameters in chronic aortic regurgitationP171Extracellular volume, and not native T1 time, distinguishes diffuse fibrosis in dilated or hypertrophic cardiomyopathy at 3TP172Left atrial strain is significantly reduced in arterial hypertensionP173Symptomatic severe secondary mitral regurgitation: LV enddiastolic diameter (LVEDD) as preferable parameter for risk stratificationP174Left ventricular mechanics in isolated left bundle branch block at rest and when exercising: exploration of the concept of conductive cardiomyopathyP175Assessment of myocardial scar by 2D contrast echocardiographyP176Chronic pericarditis - expression of a rare disease: Erdheim Chester diseaseP177Aortic arch mechanics with two-dimensional speckle tracking echocardiography to estimate the left ventricular remodelling in hypertensive patientsP178Strain analysis by tissue doppler imaging: comparison of conventional manual measurement with a semi-automated approachP179Distribution of extravascular lung water in heart failure patients assessed by lung ultrasoudP180Surrogate markers for obstructive coronary artery diseaseP181LA deformation and LV longitudinal strain by two-dimensional speckle tracking echocardiography as predictors of postoperative AF development after aortic valve replacement in ASP182Left ventricular diastolic dysfunction in type 2 diabetic patients with non alcoholic fatty liver diseaseP183Myocardial strain by speckle-tracking and evaluation of 3D ejection fraction in drug-induced cardiotoxicity's approach in breast cancer. Eur Heart J Cardiovasc Imaging 2015. [DOI: 10.1093/ehjci/jev260] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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Tong L, Huang C, Ramalli A, Tortoli P, Luo J, D'hooge J, Tzemos N, Mordi I, Bishay T, Bishay T, Negishi T, Hristova K, Kurosawa K, Bansal M, Thavendiranathan P, Yuda S, Popescu B, Vinereanu D, Penicka M, Marwick T, Hamed W, Kamel M, Yaseen R, El-Barbary H, Nemes A, Kis O, Gavaller H, Kanyo E, Forster T, Angelis A, Vlachopoulos C, Ioakimidis N, Felekos I, Chrysohoou C, Aznaouridis K, Abdelrasoul M, Terentes D, Ageli K, Stefanadis C, Kurnicka K, Domienik-Karlowicz J, Lichodziejewska B, Goliszek S, Grudzka K, Krupa M, Dzikowska-Diduch O, Ciurzynski M, Pruszczyk P, Gual Capllonch F, Lopez Ayerbe J, Teis A, Ferrer E, Vallejo N, Junca G, Pla R, Bayes-Genis A, Schwaiger J, Knight D, Gallimore A, Schreiber B, Handler C, Coghlan J, Bruno RM, Giardini G, Malacrida S, Catuzzo B, Armenia S, Brustia R, Ghiadoni L, Cauchy E, Pratali L, Kim K, Lee K, Cho J, Yoon H, Ahn Y, Jeong M, Cho J, Park J, Cho S, Nastase O, Enache R, Mateescu A, Botezatu D, Popescu B, Ginghina C, Gu H, Sinha M, Simpson J, Chowienczyk P, Fazlinezhad A, Tashakori Behesthi A, Homaei F, Mostafavi H, Hosseini G, Bakaeiyan M, Boutsikou M, Petrou E, Dimopoulos A, Dritsas A, Leontiadis E, Karatasakis G, Sahin ST, Yurdakul S, Yilmaz N, Cengiz B, Cagatay Y, Aytekin S, Yavuz S, Karlsen S, Dahlslett T, Grenne B, Sjoli B, Smiseth O, Edvardsen T, Brunvand H, Nasr G, Nasr A, Eleraki A, Elrefai S, Mordi I, Sonecki P, Tzemos N, Gustafsson U, Naar J, Stahlberg M, Cerne A, Capotosto L, Rosato E, D'angeli I, Azzano A, Truscelli G, De Maio M, Salsano F, Terzano C, Mangieri E, Vitarelli A, Renard S, Najih H, Mancini J, Jacquier A, Haentjens J, Gaubert J, Habib G, Caminiti G, D'antoni V, D'antoni V, Cardaci V, Cardaci V, Conti V, Conti V, Volterrani M, Volterrani M, Ahn J, Kim D, Lee H, Iliuta L, Lo Iudice F, Esposito R, Lembo M, Santoro C, Ballo P, Mondillo S, De Simone G, Galderisi M, Hwang Y, Kim J, Kim J, Moon K, Yoo K, Kim C, Tagliamonte E, Rigo F, Cirillo T, Caruso A, Astarita C, Cice G, Quaranta G, Romano C, Capuano N, Calabro' R, Zagatina A, Zhuravskaya N, Guseva O, Huttin O, Benichou M, Voilliot D, Venner C, Micard E, Girerd N, Sadoul N, Moulin F, Juilliere Y, Selton-Suty C, Baron T, Christersson C, Johansson K, Flachskampf F, Lee S, Lee J, Hur S, Park J, Yun J, Song S, Kim W, Ko J, Nyktari E, Bilal S, Ali S, Izgi C, Prasad S, Aly M, Kleijn S, Kandil H, Kamp O, Beladan C, Calin A, Rosca M, Craciun A, Gurzun M, Calin C, Enache R, Mateescu A, Ginghina C, Popescu B, Mornos C, Mornos A, Ionac A, Cozma D, Crisan S, Popescu I, Ionescu G, Petrescu L, Camacho S, Gamaza Chulian S, Carmona R, Diaz E, Giraldez A, Gutierrez A, Toro R, Benezet J, Antonini-Canterin F, Vriz O, La Carrubba S, Poli S, Leiballi E, Zito C, Careri S, Caruso R, Pellegrinet M, Nicolosi G, Kong W, Kyu K, Wong R, Tay E, Yip J, Yeo T, Poh K, Correia M, Delgado A, Marmelo B, Correia E, Abreu L, Cabral C, Gama P, Santos O, Rahman M, Borges IP, Peixoto E, Peixoto R, Peixoto R, Marcolla V, Okura H, Kanai M, Murata E, Kataoka T, Stoebe S, Tarr A, Pfeiffer D, Hagendorff A, Generati G, Bandera F, Pellegrino M, Alfonzetti E, Labate V, Guazzi M, Kuznetsov V, Yaroslavskaya E, Pushkarev G, Krinochkin D, Zyrianov I, Carigi S, Baldazzi F, Bologna F, Amati S, Venturi P, Grosseto D, Biagetti C, Fabbri E, Arlotti M, Piovaccari G, Rahbi H, Bin Abdulhaq A, Tleyjeh I, Santoro C, Galderisi M, Costantino M, Tarsia G, Innelli P, Dores E, Esposito G, Matera A, De Simone G, Trimarco B, Capotosto L, Azzano A, Mukred K, Ashurov R, Tanzilli G, Mangieri E, Vitarelli A, Merlo M, Gigli M, Stolfo D, Pinamonti B, Antonini Canterin F, Muca M, D'angelo G, Scapol S, Di Nucci M, Sinagra G, Behaghel A, Feneon D, Fournet M, Thebault C, Martins R, Mabo P, Leclercq C, Daubert C, Donal E, Davinder Pal S, Prakash Chand N, Sanjeev A, Rajeev M, Ankur D, Ram Gopal S, Mzoughi K, Zairi I, Jabeur M, Ben Moussa F, Ben Chaabene A, Kamoun S, Mrabet K, Fennira S, Zargouni A, Kraiem S, Demkina A, Hashieva F, Krylova N, Kovalevskaya E, Potehkina N, Zaroui A, Ben Said R, Smaali S, Rekik B, Ben Hlima M, Mizouni H, Mechmeche R, Mourali M, Malhotra A, Sheikh N, Dhutia H, Siva A, Narain R, Merghani A, Millar L, Walker M, Sharma S, Papadakis M, Siam-Tsieu V, Mansencal N, Arslan M, Deblaise J, Dubourg O, Zaroui A, Rekik B, Ben Said R, Boudiche S, Larbi N, Tababi N, Hannachi S, Mechmeche R, Mourali M, Mechmeche R, Zaroui A, Chalbia T, Ben Halima M, Rekik B, Boussada R, Mourali M, Lipari P, Bonapace S, Valbusa F, Rossi A, Zenari L, Lanzoni L, Targher G, Canali G, Molon G, Barbieri E, Novo G, Giambanco S, Sutera M, Bonomo V, Giambanco F, Rotolo A, Evola S, Assennato P, Novo S, Budnik M, Piatkowski R, Kochanowski J, Opolski G, Chatzistamatiou E, Mpampatseva Vagena I, Manakos K, Moustakas G, Konstantinidis D, Memo G, Mitsakis O, Kasakogias A, Syros P, Kallikazaros I, Marketou M, Parthenakis F, Kalyva N, Pontikoglou C, Maragkoudakis S, Zacharis E, Patrianakos A, Maragoudakis F, Papadaki H, Vardas P, Rodrigues A, Perandini L, Souza T, Sa-Pinto A, Borba E, Arruda A, Furtado M, Carvalho F, Bonfa E, Andrade J, Hlubocka Z, Malinova V, Palecek T, Danzig V, Kuchynka P, Dostalova G, Zeman J, Linhart A, Chatzistamatiou E, Konstantinidis D, Memo G, Mpampatzeva Vagena I, Moustakas G, Manakos K, Trachanas K, Vergi N, Feretou A, Kallikazaros I, Corut H, Sade L, Ozin B, Atar I, Turgay O, Muderrisoglu H, Ledakowicz-Polak A, Polak L, Krauza G, Zielinska M, Szulik M, Streb W, Wozniak A, Lenarczyk R, Sliwinska A, Kalarus Z, Kukulski T, Nogueira M, Branco L, Agapito A, Galrinho A, Borba A, Teixeira P, Monteiro A, Ramos R, Cacela D, Cruz Ferreira R, Guala A, Camporeale C, Tosello F, Canuto C, Ridolfi L, Chatzistamatiou E, Moustakas G, Memo G, Konstantinidis D, Mpampatzeva Vagena I, Manakos K, Traxanas K, Vergi N, Feretou A, Kallikazaros I, Hristova K, Marinov R, Stamenov G, Mihova M, Persenska S, Racheva A, Plaskota K, Trojnarska O, Bartczak A, Grajek S, Ramush Bejiqi R, Retkoceri R, Bejiqi H, Beha A, Surdulli S, Dreyfus J, Durand-Viel G, Cimadevilla C, Brochet E, Vahanian A, Messika-Zeitoun D, Jin C, Fang F, Meng F, Kam K, Sun J, Tsui G, Wong K, Wan S, Yu C, Lee A, Cho IJ, Chung H, Heo R, Ha S, Hong G, Shim C, Chang H, Ha J, Chung N, Moral S, Gruosso D, Galuppo V, Teixido G, Rodriguez-Palomares J, Gutierrez L, Evangelista A, Moral S, Gruosso D, Galuppo V, Teixido G, Rodriguez-Palomares J, Gutierrez L, Evangelista A, Moral S, Gruosso D, Galuppo V, Teixido G, Rodriguez-Palomares J, Gutierrez L, Evangelista A, Alexopoulos A, Dawson D, Nihoyannopoulos P, Zainal Abidin HA, Ismail J, Arshad K, Ibrahim Z, Lim C, Abd Rahman E, Kasim S, Peteiro J, Barrio A, Escudero A, Bouzas-Mosquera A, Yanez J, Martinez D, Castro-Beiras A, Scali M, Simioniuc A, Mandoli G, Lombardo A, Massaro F, Di Bello V, Marzilli M, Dini F, Adachi H, Tomono J, Oshima S, Merchan Ortega G, Bravo Bustos D, Lazaro Garcia R, Sanchez Espino A, Macancela Quinones J, Ikuta I, Ruiz Lopez M, Valencia Serrano F, Bonaque Gonzalez J, Gomez Recio M, Romano G, D'ancona G, Pilato G, Di Gesaro G, Clemenza F, Raffa G, Scardulla C, Sciacca S, Lancellotti P, Pilato M, Addetia K, Takeuchi M, Maffessanti F, Weinert L, Hamilton J, Mor-Avi V, Lang R, Sugano A, Seo Y, Watabe H, Kakefuda Y, Aihara H, Nishina H, Ishizu T, Fumikura Y, Noguchi Y, Aonuma K, Luo X, Fang F, Lee A, Shang Q, Yu C, Sammut EC, Chabinok R, Jackson T, Siarkos M, Lee L, Carr-White G, Rajani R, Kapetanakis S, Byrne D, Walsh J, Ellis L, Mckiernan S, Norris S, King G, Murphy R, Hristova K, Katova T, Simova I, Kostova V, Shuie I, Ferferieva V, Bogdanova V, Castelon X, Nemes A, Sasi V, Domsik P, Kalapos A, Lengyel C, Orosz A, Forster T, Grapsa J, Demir O, Dawson D, Sharma R, Senior R, Nihoyannopoulos P, Pilichowska E, Zaborska B, Baran J, Stec S, Kulakowski P, Budaj A, Kosmala W, Kaye G, Saito M, Negishi K, Marwick T, Maceira Gonzalez AM, Ripoll C, Cosin-Sales J, Igual B, Salazar J, Belloch V, Dulai RS, Taylor A, Gupta S. Poster session 1: Wednesday 3 December 2014, 09:00-16:00 * Location: Poster area. Eur Heart J Cardiovasc Imaging 2014; 15:ii25-ii51. [DOI: 10.1093/ehjci/jeu248] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 09/02/2023] Open
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Tie C, Kuang T, Loubser J, Frampton C, Knight D, Smyth D. APACHE III score predicts mortality in out of hospital cardiac arrest (OOHCA) patients with non-ST elevation myocardial infarction (NSTEMI). Heart Lung Circ 2014. [DOI: 10.1016/j.hlc.2014.04.236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Ben Abda A, Hachulla E, Polge A, Richardson M, Duva Penthia A, De Groote P, Montaigne D, Lamblin N, Lamer M, Cinotti R, Delater A, Asehnoune K, Blanloeil Y, Le Tourneau T, Rozec B, Piriou N, Moon J, Kim T, Ahn T, Chung W, Chimura M, Oonishi T, Tukishiro Y, Yamada S, Taniguchi Y, Yasaka Y, Kawai T, Elmissiri A, Andres Lahuerta A, Alonso Fernandez P, Igual Munoz B, Osca Asensi J, Cano Perez O, Jimenez Carreno R, Sancho-Tello De Carranza M, Olague De Ros J, Salvador Sanz A, Atas H, Samadov F, Kepez A, Sunbul M, Cincin A, Direskeneli H, Tigen K, Yildiz A, Karakas M, Cimen T, Tuncez A, Korkmaz A, Uygur B, Isleyen A, Tufekcioglu O, Melao F, Paiva M, Goncalves A, Pinho T, Madureira A, Martins E, Macedo F, Maciel M, Guvenc T, Erer H, Kul S, Oz D, Koroglu B, Kaya Y, Koc S, Sayar N, Degirmencioglu A, Eren M, Stapor M, Condemi F, Bapat V, Gianstefani S, Catibog N, Monaghan MJ, Carro A, Pijuan A, Dos L, Huguet F, Abad C, Gonzalez N, Miranda B, Galian L, Casaldaliga J, Evangelista A, Gurzun MM, Ionescu A, Kahraman E, Sen T, Guven S, Keskin G, Topaloglu S, Korkmaz S, Moatemri F, Mahdhaoui A, Bouraoui H, Jeridi G, Ernez S, Basaran O, Gozubuyuk G, Dundar C, Tasar O, Bulut M, Karaahmet T, Pala S, Tigen K, Izgi A, Kirma C, Baronaite-Dudoniene K, Urbaite L, Smalinskas V, Veisaite R, Vasylius T, Vaskelyte J, Puodziukynas A, Carro A, Teixido-Tura G, Rodriguez-Palomares J, Cuellar H, Pineda V, Gruosso D, Gutierrez L, Moral S, Gonzalez-Alujas M, Evangelista A, Oprescu N, Micheu M, Calmac L, Pitic D, Dorobantu M, Brugger N, Huerzeler M, Wustmann K, Wahl A, Steck H, Seiler C, Ismail H, Linde J, Kofoed K, Dixen U, Soergaard M, Hove J, Willis J, Oxborough D, Augustine D, Knight D, Coghlan G, Shah R, Easaw J, Verseckaite R, Pilkauskaite G, Lapinskas T, Miliauskas S, Sakalauskas R, Jurkevicius R, Ozeke O, Turak O, Ozcan F, Cay S, Topaloglu S, Aras D, Tufekcioglu O, Golbasi Z, Aydogdu S. Club 35 Poster session Friday 13 December: 13/12/2013, 08:30-18:00 * Location: Poster area. Eur Heart J Cardiovasc Imaging 2013. [DOI: 10.1093/ehjci/jet229] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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Cikes M, Tong L, Jasaityte R, Hamilton J, Sutherland G, D'hooge J, Yurdakul S, Oner F, Avci BK, Sahin S, Direskeneli H, Aytekin S, Fang F, Chan A, Zhang Q, Sanderson J, Kwong J, Yu C, Zaidi A, Raju H, Ghani S, Gati S, Cox A, Sheikh N, Sharma R, Sharma S, Kutty S, Kottam A, Padiyath A, Gao S, Drvol L, Lof J, Li L, Rangamani S, Danford D, Kuehne T, Rosner A, Avenarius D, Malm S, Iqbal A, Baltabaeva A, Schirmer H, Bijnens B, Myrmel T, Magalhaes A, Silva Marques J, Martins S, Carrilho Ferreira P, Jorge C, Silva D, Placido R, Goncalves S, Almeida A, Nunes Diogo A, Poulidakis E, Aggeli C, Sideris S, Dilaveris P, Gatzoulis K, Felekos I, Koutagiar I, Sfendouraki E, Roussakis G, Stefanadis C, Zhang Q, Sun J, Gao R, Feng Y, Liu X, Sheng W, Liu F, Yu C, Hallioglu O, Citirik D, Buyukakilli B, Ozeren M, Gurgul S, Tasdelen B, Rodriguez Lopez A, Rodriguez Lopez A, Garcia Cuenllas L, Garcia Cuenllas L, Medrano C, Medrano C, Granja S, Granja S, Marin C, Marin C, Maroto E, Maroto E, Alvarez T, Alvarez T, Ballesteros F, Ballesteros F, Camino M, Camino M, Centeno M, Centeno M, Alraies M, Aljaroudi W, Halley C, Rodriguez L, Grimm R, Thomas J, Jaber W, Knight D, Coghlan J, Muthurangu V, Grasso A, Toumpanakis C, Caplin M, Taylor A, Davar J, Mohlkert LA, Halvorsen C, Hallberg J, Sjoberg G, Norman M, Cameli M, Losito M, Lisi M, Natali B, Massoni A, Maccherini M, Chiavarelli M, Massetti M, Mondillo S, Sljivic A, Stojcevski B, Celic V, Pencic B, Majstorovic A, Cosic Z, Backovic S, Ilic-Djordjevic I, Muraru D, Gripari P, Esposito R, Tamborini G, Galderisi M, Ermacora D, Maffessanti F, Santoro C, Pepi M, Badano L, Bombardini T, Cini D, Picano E, Shahgaldi K, Gunyeli E, Sahlen A, Manouras A, Winter R, Banovic M, Vukcevic V, Ostojic M, Markovic Z, Mladenovic A, Trifunovic D, Stojkovic S, Bacic D, Dedovic D, Seferovic P, Huttin O, Coulibaly S, Mercy M, Schwartz J, Zinzius P, Sellal J, Popovic B, Marie P, Juilliere Y, Selton-Suty C, Gurzun MM, Ionescu A, Bahlay B, Jones G, Rimbas R, Enescu O, Mihaila S, Ciobanu A, Vinereanu D, Vlasseros I, Koumoulidis A, Tousoulis D, Veioglanis S, Avgeropoulou A, Katsi V, Stefanadis C, Kallikazaros I, Kiviniemi T, Ylitalo A, Airaksinen K, Lehtinen T, Saraste A, Pietila M, Karjalainen P, Trifunovic D, Ostojic M, Stankovic S, Vujisic-Tesic B, Petrovic M, Banovic M, Boricic M, Draganic G, Petrovic M, Stepanovic J, Kuznetsov V, Yaroslavskaya E, Pushkarev G, Krinochkin D, Zyrianov I, Dekleva M, Stevanovic A, Kleut M, Suzic Lazic J, Markovic Nikolic N, Akhunova S, Saifullina G, Sadykov A, Loudon M, D'arcy J, Arnold L, Reynolds R, Mabbet C, Prendergast B, Dahl J, Videbaek L, Poulsen M, Rudbaek T, Pellikka P, Rasmussen L, Moller J, Lowery C, Frenneaux M, Dawson D, Dwivedi G, Singh S, Rudd A, Mahadevan D, Srinivasan J, Jiminez D, Sahinarslan A, Vecchio F, Maccarthy P, Wendler O, Monaghan M, Harimura Y, Seo Y, Ishizu T, Noguchi Y, Aonuma K, Urdaniz MM, Palomares JFR, Rius JB, Surribas IB, Tura GT, Garcia-Moreno LG, Alujas TG, Masip AE, Mas PT, Dorado DG, Meimoun P, Germain A, Clerc J, Elmkies F, Zemir H, Luycx-Bore A, Nasr GM, Erraki A, Dulgheru R, Magne J, Capoulade R, Elhonsali Z, Pierard LA, Pibarot P, Lancellotti P, Wrideier S, Butz T, Schilling I, Gkiouras G, Sasko B, Van Bracht M, Prull M, Trappe HJ, Castillo Bernal F, Mesa Rubio M, Ruiz Ortiz M, Delgado Ortega M, Morenate Navio M, Baeza Garzon M, Del Pino ML, Toledano Delgado F, Mazuelos F, Suarez de Lezo Herreros de Tejada J, Prinz C, Schumann M, Burghardt A, Seggewiss H, Oldenburg O, Horstkotte D, Faber L, Bistola V, Banner N, Hedger M, Simon A, Rahman Haley S, Baltabaeva A, Adamyan K, Tumasyan LR, Chilingaryan A, Makavos G, Kouris N, Kostopoulos V, Stamatelatou M, Damaskos D, Kartsagoulis E, Olympios C, Sade L, Eroglu S, Bircan A, Pirat B, Sezgin A, Aydinalp A, Muderrisoglu H, Sargento L, Satendra M, Sousa C, Longo S, Lousada N, Dos Reis RP, Kuznetsov V, Krinochkin D, Gapon L, Vershinina A, Shurkevich N, Bessonova M, Yaroslavskaya E, Kolunin G, Sargento L, Satendra M, Sousa C, Lousada N, Dos Reis RP, Azevedo O, Lourenco M, Machado I, Guardado J, Medeiros R, Pereira A, Quelhas I, Lourenco A, Duman D, Sargin F, Kilicaslan B, Inan A, Ozgunes N, Goktas P, Ikonomidis I, Tzortzis S, Paraskevaidis I, Andreadou I, Katseli C, Katsimbri P, Papadakis I, Pavlidis G, Anastasiou-Nana M, Lekakis J, Charalampopoulos A, Howard L, Davies R, Gin-Sing W, Tzoulaki I, Grapsa I, Gibbs J, Dobson RA, Cuthbertson DJ, Burgess M, Lichodziejewska B, Kurnicka K, Goliszek S, Kostrubiec M, Dzikowska-Diduch O, Ciurzynski M, Krupa M, Grudzka K, Palczewski P, Pruszczyk P, Mansencal N, Marcadet D, Montalvan B, Dubourg O, Matveeva N, Nartsissova G, Chernjavskiy A, Eicher JC, Berthier S, Lorcerie B, Philip JL, Wolf JE, Wiesen P, Ledoux D, Massion P, Piret S, Canivet JL, Cusma-Piccione M, Zito C, Imbalzano E, Saitta A, Donato D, Madaffari A, Luzza G, Pipitone V, Tripodi R, Carerj S, Bombardini T, Gherardi S, Arpesella G, Maccherini M, Serra W, Del Bene R, Sicari R, Picano E, Al-Mallah M, Ananthasubramaniam K, Alam M, Chattahi J, Zweig B, Boedeker S, Song T, Khoo J, Davies J, Ang KL, Galinanes M, Chin D, Papamichael ND, Karassavidou D, Mpougialkli M, Antoniou S, Giannitsi S, Chachalos S, Gouva C, Naka K, Katopodis K, Michalis L, Tsang W, Cui V, Ionasec R, Takeuchi M, Houle H, Weinert L, Roberson D, Lang R, Altman M, Aussoleil A, Bergerot C, Sibellas F, Bonnefoy-Cudraz E, Derumeaux GA, Thibault H, Mohamed A, Omran A, Hussein M, Shahgaldi K, Gunyeli E, Sahlen A, Manouras A, Winter R, Squeri A, Binno S, Ferdenzi E, Reverberi C, Baldelli M, Barbieri A, Iaccarino D, Naldi M, Bosi S, Kalinowski M, Szulik M, Streb W, Stabryla J, Nowak J, Rybus-Kalinowska B, Kukulski T, Kalarus Z, Ouss A, Riezebos R, Nestaas E, Skranes J, Stoylen A, Brunvand L, Fugelseth D, Magalhaes A, Silva Marques J, Martins S, Carrilho Ferreira P, Placido R, Jorge C, Silva D, Goncalves S, Almeida A, Nunes Diogo A, Nagy A, Kovats T, Apor A, Nagy A, Vago H, Toth A, Toth M, Merkely B, Ranjbar S, Karvandi M, Hassantash S, Da Silva SG, Marin C, Rodriguez A, Marcos C, Rodriguez-Ogando A, Maroto E, Medrano C, Del Valle DI, Lopez-Fernandez T, Gemma D, Gomez-Rubin M, De Torres F, Feliu J, Canales M, Buno A, Ramirez E, Lopez-Sendon J, Magalhaes A, Silva Marques J, Martins S, Placido R, Silva D, Jorge C, Calisto C, Goncalves S, Almeida A, Nunes Diogo A, Jorge C, Cortez-Dias N, Goncalves S, Ribeiro S, Santos L, Silva D, Barreiros C, Bernardes A, Carpinteiro L, Sousa J, Kim SH, Choi W, Chidambaram S, Arunkumar R, Venkatesan S, Gnanavelu G, Dhandapani V, Ravi M, Karthikeyan G, Meenakshi K, Muthukumar D, Swaminathan N, Vitarelli A, Barilla F, Capotosto L, Truscelli G, Dettori O, Caranci F, D-Angeli I, De Maio M, De Cicco V, Bruno P, Doesch C, Sueselbeck T, Haghi D, Streitner F, Borggrefe M, Papavassiliu T, Laser K, Schaefer F, Fischer M, Habash S, Degener F, Moysich A, Haas N, Kececioglu D, Burchert W, Koerperich H, Dwivedi G, Al-Shehri H, Dekemp R, Ali I, Alghamdi A, Klein R, Scullion A, Beanlands R, Ruddy T, Chow B, Lipiec P, Szymczyk E, Michalski B, Wozniakowski B, Rotkiewicz A, Stefanczyk L, Szymczyk K, Kasprzak J, Angelov A, Yotov Y, Mircheva L, Kisheva A, Kunchev O, Ikonomidis I, Tsantes A, Triantafyllidi H, Tzortzis S, Dima K, Trivilou P, Papadopoulos C, Travlou A, Anastasiou-Nana M, Lekakis J, Bader R, Agoston-Coldea L, Lupu S, Mocan T, Loegstrup B, Hofsten D, Christophersen T, Moller J, Bjerre M, Flyvbjerg A, Botker H, Egstrup K, Park Y, Choi J, Yun K, Lee S, Han D, Kim J, Kim J, Kim J, Chun K. Poster Session Wednesday 5 December all day Display * Determinants of left ventricular performance. Eur Heart J Cardiovasc Imaging 2012. [DOI: 10.1093/ehjci/jes248] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Morrissey I, Seifert H, Canton R, Nordmann P, Stefani S, MacGowan A, Janes R, Knight D. Activity of oritavancin against methicillin-resistant staphylococci, vancomycin-resistant enterococci and -haemolytic streptococci collected from western European countries in 2011. J Antimicrob Chemother 2012; 68:164-7. [DOI: 10.1093/jac/dks344] [Citation(s) in RCA: 28] [Impact Index Per Article: 2.3] [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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Squires RA, Wilson PR, Whelan NC, Johnstone AC, Ayanegui-Alcérreca MA, Castillo-Alcala F, Knight D. Alpha and gamma herpesvirus detection in two herds of farmed red deer (Cervus elaphus) in New Zealand. N Z Vet J 2012; 60:69-75. [PMID: 22175434 DOI: 10.1080/00480169.2011.629601] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Abstract
CASE HISTORY In September 2004 two hinds on Farm 1 were observed with epiphora and keratoconjunctivitis, and corneal scarring. A low pregnancy rate in some hinds had been recorded that year. In the same year six yearling deer were observed on Farm 2 with keratitis, uveitis and corneal scarring. CLINICAL AND PATHOLOGICAL FINDINGS On Farm 1, conjunctival swabs and blood samples were collected from the hinds with ocular lesions, and from 24 other hinds. The two affected hinds were immunosuppressed with dexamethasone for 7 days. Conjunctival, nasal and vaginal swabs were collected daily before euthanasia and necropsy on the eighth day. Subsequently, another five non-pregnant hinds were similarly immunosuppressed and necropsied, and the reproductive tracts of 20 non-pregnant hinds were collected following slaughter. Semen samples were collected from four stags implicated with reproductive failure. On Farm 2, conjunctival swabs were collected from six hinds with ocular lesions and from 14 unaffected deer. Viral culture, consensus primer PCR and sequencing for specific herpesviruses was carried out on conjunctival swabs, buffy coat from blood samples, semen and reproductive tracts. Necropsy samples were also examined using gross pathology and histopathology. On Farm 1, a type 2 rhadinovirus (CvRhV) was detected in the conjunctiva of one hind with keratoconjunctivitis using PCR. Following immunosuppression, gross vesicular and histological vaginal lesions typical of infection with alphaherpesvirus were observed in samples of vaginal tissue from the same hind. Buffy coat, vaginal and lumbar spinal nervous tissues were also positive for cervid herpesvirus 1 (CvHV-1) using PCR. Herpesviruses were not detected in reproductive tracts, ocular or semen samples of the other deer. CvRhV was detected in buffy coats from four other hinds and in a conjunctival swab from one hind, all without ocular lesions, using PCR. On Farm 2, conjunctival swabs from two deer with keratitis were culture positive for CvHV-1. Two culture-negative conjunctival samples from deer without ocular lesions were positive for CvHV-1 by PCR. In two other affected animals, presence of CvRhV was confirmed by PCR and sequencing. DIAGNOSIS Infection with CvHV-1 associated with keratitis and vulvovaginitis, and CvRhV infection in deer with and without ocular lesions. CLINICAL RELEVANCE CvHV-1 is a likely cause of keratoconjunctivitis and possibly reproductive tract pathology in deer. Investigation of ocular lesions and reproductive failure in farmed deer should include CvRhV and CvHV-1.
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Affiliation(s)
- R A Squires
- Institute of Veterinary, Animal and Biomedical Sciences, Massey University, Private Bag 11222, Palmerston North 4442, New Zealand
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Konopka A, Knight D, Turco RF. Characterization of a Pseudomonas sp. Capable of Aniline Degradation in the Presence of Secondary Carbon Sources. Appl Environ Microbiol 2010; 55:385-9. [PMID: 16347847 PMCID: PMC184119 DOI: 10.1128/aem.55.2.385-389.1989] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Pseudomonas strain K1 is a gram-negative rod which grows aerobically on minimal media containing aniline with a doubling time of 2 h at 30 degrees C. The half-saturation parameter for aniline metabolism by aniline-grown cells was 3.8 mumol . liter. Concentrations of aniline as low as 50 nM were metabolized. Neither substituted anilines nor other aromatic compounds (other than aromatic amino acids) supported growth. Cells grew as fast on aniline as on nonaromatic substrates such as lactate. The aromatic ring was cleaved via the meta pathway. Catechol 2,3-oxygenase activity was induced by aniline, even in cultures containing alternative carbon sources such as lactate. Cultures grown on a mixture of aniline and lactate mineralized aniline in the presence of the second substrate. Lactate-grown cultures lacked catechol oxygenase activity, and resting cells from these cultures did not respire aniline. Resting cells from aniline-grown cultures exhibited high respiratory activity upon the addition of aniline or catechol, some activity with toluidine, and no activity after addition of a wide variety of other aromatic compounds, including dihydroxybenzylamine, chloroanilines, ethylanilines, aminophenols, aminobenzoates, and dihydroxybenzoates. Although substituted anilines were not metabolized, 3-or 4-chloroaniline did induce the enzymes for aniline oxidation.
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Affiliation(s)
- A Konopka
- Department of Biological Sciences and Department of Agronomy, Purdue University, West Lafayette, Indiana 47907
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Knight D, Tiersten A, Miao H, Llorente M, Elfring G, Novik Y, Speyer J, Volm M, Miller L. PTC299, a Novel Regulator of Tumor VEGF Expression, Is Well Tolerated and Achieves Target Plasma Concentrations: Dose-Ranging Results of a Phase 1b Study in Women with Metastatic Breast Cancer. Cancer Res 2009. [DOI: 10.1158/0008-5472.sabcs-09-6092] [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: 11/16/2022]
Abstract
Abstract
Background: Current anti-angiogenic drugs interfere with the vascular endothelial growth factor (VEGF) signaling pathway. PTC299 is an orally delivered, small-molecule investigational drug designed to inhibit the expression of VEGF and other angiogenic cytokines within tumors. PTC299 also induces a parallel interruption of tumor cell division at the G1/S phase of the cell cycle, offering several potential mechanisms of action. In multiple models of human cancers grown as xenografts in mice, including breast cancer, single-agent PTC299 decreases tumor and plasma VEGF levels and results in significant tumor regression or delay of tumor growth. Data from Phase 1a testing in healthy volunteers supported initiation of this Phase 1b, 2-stage, open-label, dose-ranging, escalating-dose, safety, pharmacokinetic (PK), and pharmacodynamic study evaluating PTC299 monotherapy and PTC299 combination therapy with hormonal agents in adult women with metastatic breast cancer.Materials and Methods: In Stage 1, patients have received PTC299 monotherapy in repeated 6-week cycles, each comprising a 4-week course of PTC299 administered on a twice daily (BID) schedule, followed by a 2-week washout period. The study was designed to enroll 3 successive cohorts of 3 to 6 patients at progressively higher dose levels of 0.3 mg/kg/dose BID, 0.6 mg/kg/dose BID, or 1.2 mg/kg/dose BID, with treatment given until disease progression or unacceptable toxicity. Safety, PK, and antitumor activity have been assessed.Results: Stage 1 enrolled 9 subjects (3 at each dose level) with a median [range] of 53 [31-76] years old and an Eastern Cooperative Oncology Group (ECOG) performance status of 0 (n=1) or 1 (n=8). Patients were extensively pretreated with hormonal (patient n=3), chemotherapy (n=9), and/or antiangiogenic agents (n=6). No dose-limiting toxicity was observed. Adverse events have generally been infrequent, low-grade, and do not appear to be PTC299-related. No hypertension, bleeding, thromboembolism, or proteinuria has been seen. Drug plasma concentrations have exceeded the maximally active plasma trough level identified in nude mouse xenograft models. Disease stabilization through multiple cycles (∼6 months and ∼4.5 months, respectively) has been observed in 2 subjects at the highest PTC299 dose level (1.2 mg/kg/dose BID). In these subjects, improvements in tumor-related markers of angiogenesis/inflammation have been observed.Discussion: PTC299 may offer safety, efficacy, and convenience advantages relative to current anti-angiogenic drugs. In Stage 1 of this Phase 1b study, PTC299 has been well tolerated, has achieved target plasma concentrations, and has shown suggestions of antitumor and pharmacodynamic activity. Accrual to Stage 2, in which subjects receive PTC299 combination therapy with hormonal agents, is ongoing.Supported by a translational breast cancer research grant award from the Congressionally Directed Medical Research Programs of the Department of Defense
Citation Information: Cancer Res 2009;69(24 Suppl):Abstract nr 6092.
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Jung G, Knight D, Moadel A, Desai K, Chaudhary I, Gajavelli S, Ghalib MH, Mani S, Goel S. Assessment of quality of life using FACT-G survey in a phase I trial in cancer patients. J Clin Oncol 2009. [DOI: 10.1200/jco.2009.27.15_suppl.e20709] [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
e20709 Background: Quality of life (QoL) assessment in clinical trials has been gaining more attention. FACT-G surveys have been validated to assess QoL in clinical trials involving oncology patient (Cella DF et al, J Clin Oncol 11:570–579, 1993). However, there is paucity of evaluation of QoL in patients with advanced cancer participating in Phase I clinical trials. Methods: FACT-G surveys were conducted within the context of a Phase I trial to identify a safe dose and potential drug-drug interations of capecitabine and irinotecan combination (Goel, S et al, Invest New Drugs 25:237–245, 2007). The FACT-G survey consists of 28 questions in 5 sections, namely, physical well-being, social/family well-being, emotional well-being, relationship with doctor, and functional well-being). Patients were requested to complete the FACT-G surveys at baseline and every two cycles thereafter (each cycle of 3 weeks duration). Results: Forty-one of 47 patients with advanced solid tumors who participated in the clinical trial completed FACT-G surveys. Mean scores were calculated for each time point. The mean QoL scores at baseline and post cycle 2 were 53 and 58, respectively (p = 0.1). Post cycle 4, the mean QoL score was 62 [p = 0.01, (vs. baseline)]. Following cycle 4, the number of respondents decreased to the extent where we were unable to ascertain any further changes in the QoL scores. Conclusions: It is feasible to use FACT-G survey as a tool to assess QoL in patients participating in an oncology phase I clinical trial. Although the sample size of the patient population was not powered for any statistical significance, there was a trend toward improving QoL based on FACT-G survey scores. This suggests that phase I clinical trials may provide improvement of QoL for some patients. FACT-G is a useful tool in assessing QoL in oncology phase I trial study population. No significant financial relationships to disclose.
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Affiliation(s)
- G. Jung
- Montefiore Medical Center, Bronx, NY; Albert Einstein College of Medicine, Bronx, NY
| | - D. Knight
- Montefiore Medical Center, Bronx, NY; Albert Einstein College of Medicine, Bronx, NY
| | - A. Moadel
- Montefiore Medical Center, Bronx, NY; Albert Einstein College of Medicine, Bronx, NY
| | - K. Desai
- Montefiore Medical Center, Bronx, NY; Albert Einstein College of Medicine, Bronx, NY
| | - I. Chaudhary
- Montefiore Medical Center, Bronx, NY; Albert Einstein College of Medicine, Bronx, NY
| | - S. Gajavelli
- Montefiore Medical Center, Bronx, NY; Albert Einstein College of Medicine, Bronx, NY
| | - M. H. Ghalib
- Montefiore Medical Center, Bronx, NY; Albert Einstein College of Medicine, Bronx, NY
| | - S. Mani
- Montefiore Medical Center, Bronx, NY; Albert Einstein College of Medicine, Bronx, NY
| | - S. Goel
- Montefiore Medical Center, Bronx, NY; Albert Einstein College of Medicine, Bronx, NY
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Figura M, Chilton L, Liacini A, Viskovic MM, Phan V, Knight D, Millar TM, Patel K, Kubes P, Giles WR, Tibbles LA. Blockade of K(ATP) channels reduces endothelial hyperpolarization and leukocyte recruitment upon reperfusion after hypoxia. Am J Transplant 2009; 9:687-96. [PMID: 19292831 DOI: 10.1111/j.1600-6143.2009.02553.x] [Citation(s) in RCA: 17] [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: 01/25/2023]
Abstract
Ischemia/reperfusion injury in renal transplantation leads to slow or initial nonfunction, and predisposes to acute and chronic rejection. In fact, severe ischemia reperfusion injury can significantly reduce graft survival, even with modern immunosuppressive agents. One of the mechanisms by which ischemia/reperfusion causes injury is activation of endothelial cells resulting in inflammation. Although several therapies can be used to prevent leukocyte recruitment to ischemic vessels (e.g. antiadhesion molecule antibodies), there have been no clinical treatments reported that can prevent initial immediate neutrophil recruitment upon reperfusion. Using intravital microscopy, we describe abrogation of immediate neutrophil recruitment to ischemic microvessels by the K(ATP) antagonist glibenclamide (Glyburide). Further, we show that glibenclamide can reduce leukocyte recruitment in vitro under physiologic flow conditions. ATP-regulated potassium channels (K(ATP)) are important in the control of cell membrane polarization. Here we describe profound hyperpolarization of endothelial cells during hypoxia, and the reduction of this hyperpolarization using glibenclamide. These findings suggest that control of endothelial membrane potential during ischemia may be an important therapeutic tool in avoiding ischemia/reperfusion injury, and therefore, enhancing transplant long-term function.
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Affiliation(s)
- M Figura
- Institute of Infection, Immunity and Inflammation, Faculty of Medicine, University of Calgary, Calgary, Alberta, Canada
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Abstract
The number of syphilis cases has increased in the UK in recent years, but many clinicians have limited experience in the diagnosis and treatment of this disease. If early diagnosis is not made and treated promptly with antibiotics, the disease may remain latent until the more serious manifestations of tertiary syphilis develop. We present the case of a 27-year-old man who presented with an acute mono-arthritis secondary to syphilis. The condition responded to antibiotic therapy. Orthopaedic surgeons should be aware of the diagnosis and consider it in patients with an acute arthropathy.
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Affiliation(s)
- J Aderinto
- Department of Orthopaedic Trauma, Royal Infirmary of Edinburgh, Edinburgh, UK.
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Smith G, Schmidt P, Prytherch D, Mohammed M, Windsor A, Featherstone P, Knight D, Peet H. Diurnal variations in vital signs observations. Resuscitation 2008. [DOI: 10.1016/j.resuscitation.2008.03.054] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Tornetta M, Fisher D, O'Neil K, Geng D, Schantz A, Brigham-Burke M, Lombardo D, Fink D, Knight D, Sweet R, Tsui P. Isolation of human anti-idiotypic antibodies by phage display for clinical immune response assays. J Immunol Methods 2007; 328:34-44. [PMID: 17888945 DOI: 10.1016/j.jim.2007.08.008] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2005] [Revised: 05/23/2007] [Accepted: 08/02/2007] [Indexed: 11/29/2022]
Abstract
The clinical development of therapeutic proteins requires assays that measure the pharmacokinetic (PK) profile of, and the potential immune response (IR) to, the protein agent. Each assay requires reagents that are highly specific for the therapeutic protein. For therapeutic monoclonal antibodies, anti-CDR-specific, or anti-idiotypic (anti-id), antibodies are an ideal class of reagents suitable for these assays because of their high specificity and affinity to the drug antibody. We generated anti-ids to two human antibodies by antibody phage display using the MorphoSys HuCAL GOLD Fab library. To selectively target the CDR regions, serum and a framework-matched mAb were included as competitors during the phage selection process. Panels of CDR-specific Fabs, with low to sub-nM affinities, were isolated against both targets. The CDR specificity of these Fabs was shown by their lack of binding to a framework-matched control mAb and by competition of this binding with the soluble antigens of the respective therapeutic mAb targets. The candidate anti-id Fabs were able to detect both immobilized and soluble target Ab without being affected by serum, a requirement for both PK assay and the IR bridging assay format. Combinations of the Fabs for PK detection assays were identified by pairwise binding studies, although the pair for one target mAb lacks the desired sensitivity for PK assays. To evaluate their potential as anti-drug antibodies (ADAs), the best Fabs for one of the targets were converted and produced as the required bivalent human mAbs. In comparison to rodent mAbs and primate polyclonal serum, the phage display derived human mAbs were equally effective as reference standards. Our results demonstrate that competition-based phage selection can be an effective method for the isolation of anti-idiotypic antibodies for PK and IR assay development, and in this latter case, overcome limitations of current methods using rodent derived anti-ids.
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Affiliation(s)
- M Tornetta
- Department of Molecular Discovery Technologies, Centocor Inc, Radnor, PA, USA.
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An S, Bai T, Bates J, Black J, Brown R, Brusasco V, Chitano P, Deng L, Dowell M, Eidelman D, Fabry B, Fairbank N, Ford L, Fredberg J, Gerthoffer W, Gilbert S, Gosens R, Gunst S, Halayko A, Ingram R, Irvin C, James A, Janssen L, King G, Knight D, Lauzon A, Lakser O, Ludwig M, Lutchen K, Maksym G, Martin J, Mauad T, McParland B, Mijailovich S, Mitchell H, Mitchell R, Mitzner W, Murphy T, Paré P, Pellegrino R, Sanderson M, Schellenberg R, Seow C, Silveira P, Smith P, Solway J, Stephens N, Sterk P, Stewart A, Tang D, Tepper R, Tran T, Wang L. Airway smooth muscle dynamics: a common pathway of airway obstruction in asthma. Eur Respir J 2007; 29:834-60. [PMID: 17470619 PMCID: PMC2527453 DOI: 10.1183/09031936.00112606] [Citation(s) in RCA: 279] [Impact Index Per Article: 16.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Excessive airway obstruction is the cause of symptoms and abnormal lung function in asthma. As airway smooth muscle (ASM) is the effecter controlling airway calibre, it is suspected that dysfunction of ASM contributes to the pathophysiology of asthma. However, the precise role of ASM in the series of events leading to asthmatic symptoms is not clear. It is not certain whether, in asthma, there is a change in the intrinsic properties of ASM, a change in the structure and mechanical properties of the noncontractile components of the airway wall, or a change in the interdependence of the airway wall with the surrounding lung parenchyma. All these potential changes could result from acute or chronic airway inflammation and associated tissue repair and remodelling. Anti-inflammatory therapy, however, does not "cure" asthma, and airway hyperresponsiveness can persist in asthmatics, even in the absence of airway inflammation. This is perhaps because the therapy does not directly address a fundamental abnormality of asthma, that of exaggerated airway narrowing due to excessive shortening of ASM. In the present study, a central role for airway smooth muscle in the pathogenesis of airway hyperresponsiveness in asthma is explored.
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Affiliation(s)
- S.S. An
- Division of Physiology, Dept of Environmental Health Sciences, Johns Hopkins University Bloomberg School of Public Health
| | - T.R. Bai
- James Hogg iCAPTURE Centre, University of British Columbia, Vancouver
| | - J.H.T. Bates
- Vermont Lung Center, University of Vermont College of Medicine, Burlington, VT
| | - J.L. Black
- Dept of Pharmacology, University of Sydney, Sydney
| | - R.H. Brown
- Dept of Anesthesiology and Critical Care medicine, Johns Hopkins Medical Institutions, Baltimore, MD
| | - V. Brusasco
- Dept of Internal Medicine, University of Genoa, Genoa
| | - P. Chitano
- Dept of Paediatrics, Duke University Medical Center, Durham, NC
| | - L. Deng
- Program in Molecular and Integrative Physiological Sciences, Dept of Environmental Health, Harvard School of Public Health
- Bioengineering College, Chongqing University, Chongqing, China
| | - M. Dowell
- Section of Pulmonary and Critical Care Medicine
| | - D.H. Eidelman
- Meakins-Christie Laboratories, Dept of Medicine, McGill University, Montreal
| | - B. Fabry
- Center for Medical Physics and Technology, Erlangen, Germany
| | - N.J. Fairbank
- School of Biomedical Engineering, Dalhousie University, Halifax
| | | | - J.J. Fredberg
- Program in Molecular and Integrative Physiological Sciences, Dept of Environmental Health, Harvard School of Public Health
| | - W.T. Gerthoffer
- Dept of Pharmacology, University of Nevada School of Medicine, Reno, NV
| | | | - R. Gosens
- Dept of Physiology, University of Manitoba, Winnipeg
| | - S.J. Gunst
- Dept of Physiology, Indiana University School of Medicine, Indianapolis, IN
| | - A.J. Halayko
- Dept of Physiology, University of Manitoba, Winnipeg
| | - R.H. Ingram
- Dept of Medicine, Emory University School of Medicine, Atlanta, GA
| | - C.G. Irvin
- Vermont Lung Center, University of Vermont College of Medicine, Burlington, VT
| | - A.L. James
- West Australian Sleep Disorders Research Institute, Sir Charles Gairdner Hospital, Nedlands
| | - L.J. Janssen
- Dept of Medicine, McMaster University, Hamilton, Canada
| | - G.G. King
- Woolcock Institute of Medical Research, Camperdown
| | - D.A. Knight
- James Hogg iCAPTURE Centre, University of British Columbia, Vancouver
| | - A.M. Lauzon
- Meakins-Christie Laboratories, Dept of Medicine, McGill University, Montreal
| | - O.J. Lakser
- Section of Paediatric Pulmonary Medicine, University of Chicago, Chicago, IL
| | - M.S. Ludwig
- Meakins-Christie Laboratories, Dept of Medicine, McGill University, Montreal
| | - K.R. Lutchen
- Dept of Biomedical Engineering, Boston University, Boston
| | - G.N. Maksym
- School of Biomedical Engineering, Dalhousie University, Halifax
| | - J.G. Martin
- Meakins-Christie Laboratories, Dept of Medicine, McGill University, Montreal
| | - T. Mauad
- Dept of Pathology, Sao Paulo University Medical School, Sao Paulo, Brazil
| | | | - S.M. Mijailovich
- Program in Molecular and Integrative Physiological Sciences, Dept of Environmental Health, Harvard School of Public Health
| | - H.W. Mitchell
- Discipline of Physiology, School of Biomedical, Biomolecular and Chemical Sciences, University of Western Australia, Perth
| | | | - W. Mitzner
- Division of Physiology, Dept of Environmental Health Sciences, Johns Hopkins University Bloomberg School of Public Health
| | - T.M. Murphy
- Dept of Paediatrics, Duke University Medical Center, Durham, NC
| | - P.D. Paré
- James Hogg iCAPTURE Centre, University of British Columbia, Vancouver
| | - R. Pellegrino
- Dept of Respiratory Physiopathology, S. Croce e Carle Hospital, Cuneo, Italy
| | - M.J. Sanderson
- Dept of Physiology, University of Massachusetts Medical School, Worcester, MA
| | - R.R. Schellenberg
- James Hogg iCAPTURE Centre, University of British Columbia, Vancouver
| | - C.Y. Seow
- James Hogg iCAPTURE Centre, University of British Columbia, Vancouver
| | - P.S.P. Silveira
- Dept of Pathology, Sao Paulo University Medical School, Sao Paulo, Brazil
| | - P.G. Smith
- Dept of Paediatrics, School of Medicine, Case Western Reserve University, Cleveland, OH
| | - J. Solway
- Section of Pulmonary and Critical Care Medicine
| | - N.L. Stephens
- Dept of Physiology, University of Manitoba, Winnipeg
| | - P.J. Sterk
- Dept of Pulmonology, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - A.G. Stewart
- Dept of Pharmacology, University of Melbourne, Parkville, Australia
| | - D.D. Tang
- Center for Cardiovascular Sciences, Albany Medical College, Albany, NY, USA
| | - R.S. Tepper
- Dept of Paediatrics, Indiana University School of Medicine, Indianapolis, IN
| | - T. Tran
- Dept of Physiology, University of Manitoba, Winnipeg
| | - L. Wang
- Dept of Paediatrics, Duke University Medical Center, Durham, NC
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McIntyre CL, Casu RE, Drenth J, Knight D, Whan VA, Croft BJ, Jordan DR, Manners JM. Resistance gene analogues in sugarcane and sorghum and their association with quantitative trait loci for rust resistance. Genome 2007; 48:391-400. [PMID: 16121236 DOI: 10.1139/g05-006] [Citation(s) in RCA: 55] [Impact Index Per Article: 3.2] [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: 11/22/2022]
Abstract
Fifty-four different sugarcane resistance gene analogue (RGA) sequences were isolated, characterized, and used to identify molecular markers linked to major disease-resistance loci in sugarcane. Ten RGAs were identified from a sugarcane stem expressed sequence tag (EST) library; the remaining 44 were isolated from sugarcane stem, leaf, and root tissue using primers designed to conserved RGA motifs. The map location of 31 of the RGAs was determined in sugarcane and compared with the location of quantitative trait loci (QTL) for brown rust resistance. After 2 years of phenotyping, 3 RGAs were shown to generate markers that were significantly associated with resistance to this disease. To assist in the understanding of the complex genetic structure of sugarcane, 17 of the 31 RGAs were also mapped in sorghum. Comparative mapping between sugarcane and sorghum revealed syntenic localization of several RGA clusters. The 3 brown rust associated RGAs were shown to map to the same linkage group (LG) in sorghum with 2 mapping to one region and the third to a region previously shown to contain a major rust-resistance QTL in sorghum. These results illustrate the value of using RGAs for the identification of markers linked to disease resistance loci and the value of simultaneous mapping in sugarcane and sorghum.
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Affiliation(s)
- C L McIntyre
- CSIRO Plant Industry, Queensland Bioscience Precinct, Brisbane, Australia.
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Abstract
More tourists are visiting the idyllic waters of the South Pacific each year. They share the shallow waters with the native wildlife, including the venomous stonefish. Although the injection of its venom has been reported to have occasional fatal neuromuscular and cardiovascular sequelae, severe tissue necrosis at the injection site has not been described. We present a case of stonefish injury that describes serious localised sequelae of stonefish envenomation
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Affiliation(s)
- G F Dall
- Royal Infirmary of Edinburgh, 51 Little France Crescent, Edinburgh, EH16 4SA, Scotland, UK
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Smith GB, Prytherch D, Peet H, Featherstone PI, Schmidt P, Knight D, Stewart K, Higgins B. Automated calculation of 'early warning scores'. Anaesthesia 2006; 61:1009-10. [PMID: 16978321 DOI: 10.1111/j.1365-2044.2006.04803.x] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Moeller A, Horak F, Lane C, Knight D, Kicic A, Brennan S, Franklin P, Terpolilli J, Wildhaber JH, Stick SM. Inducible NO synthase expression is low in airway epithelium from young children with cystic fibrosis. Thorax 2006; 61:514-20. [PMID: 16517573 PMCID: PMC2111217 DOI: 10.1136/thx.2005.054643] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BACKGROUND This is the first study to measure inducible nitric oxide synthase (iNOS) gene and protein expression quantitatively in primary epithelial cells from very young children with cystic fibrosis (CF). Low levels of exhaled nitric oxide (NO) in CF suggest dysregulation of NO production in the airway. Due to the importance of NO in cell homeostasis and innate immunity, any defect in the pathway associated with CF would be a potential target for treatment. METHODS Cells were obtained by tracheobronchial brushing from 40 children with CF of mean (SD) age 2.1 (1.5) years and from 12 healthy non-atopic children aged 3.4 (1.2) years. Expression of iNOS mRNA was measured using quantitative PCR and iNOS protein by immunofluorescence and Western blot analysis. RESULTS Inducible NOS mRNA expression was significantly lower in CF patients with and without bacterial infection than in healthy children (0.22 and 0.23 v 0.76; p=0.002 and p=0.01, respectively). Low levels of iNOS gene expression were accompanied by low levels of iNOS protein expression as detected by Western blot analysis. CONCLUSIONS These results support the findings of previous studies in adult patients with advanced disease, cell lines, and animal models. Our findings reflect the situation in children with mild lung disease. They indicate that low iNOS expression may be an innate defect in CF with potential consequences for local antimicrobial defence and epithelial cell function and provide evidence for an approach to treatment based on increasing epithelial NO production or the sensitivity of NO dependent cellular processes.
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Affiliation(s)
- A Moeller
- Department of Respiratory Medicine, Princess Margaret Hospital for Children, Perth, Western Australia, and Division of Respiratory Medicine, University Children's Hospital Zurich, Switzerland.
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Haccuria A, Knoop C, Magro C, Knight D, Waldman J, Pope-Harman A, Dumonceaux M, Remmelink M, Rondelet B, Vachiéry J, Estenne M. 412. J Heart Lung Transplant 2006. [DOI: 10.1016/j.healun.2005.11.427] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022] Open
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Grinberg A, Pomroy WE, Weston JF, Ayanegui-Alcerreca A, Knight D. The occurrence of Cryptosporidium parvum, Campylobacter and Salmonella in newborn dairy calves in the Manawatu region of New Zealand. N Z Vet J 2005; 53:315-20. [PMID: 16220123 DOI: 10.1080/00480169.2005.36566] [Citation(s) in RCA: 18] [Impact Index Per Article: 0.9] [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: 10/18/2022]
Abstract
AIM To determine the occurrence of Cryptosporidium parvum oocysts, Campylobacter spp and Salmonella spp in faecal samples taken from newborn dairy calves on 24 dairy farms in the Manawatu region of New Zealand. METHODS A cross-sectional study was conducted during the 2002 calving season. Faecal samples were collected from 185 newborn calves from a convenience sample of 24 dairy farms. The samples were tested microscopically for the presence of C. parvum oocysts, and bacteriologically for the presence of Campylobacter spp and Salmonella spp. RESULTS Infections with C. parvum were identified in 33/156 (21.2%) calves from 10 farms. More than 10(6) oocysts/g (OPG) faeces were detected in calves from four farms. Campylobacter spp were isolated from 58/161 (36%) calves from 18 farms; in particular, C. jejuni subsp jejuni was isolated from 11/161 (6.8%) calves from seven farms. Salmonellae were not detected. CONCLUSIONS Despite the short and concentrated calving pattern and the long interval between calving seasons characterising most dairy farms in New Zealand, C. parvum is widespread among calves. Campylobacter spp, especially C. jejuni, rapidly colonise the intestinal tract of newborn calves. RELEVANCE This study provided an estimate of the ecological impact of newborn dairy calves with regard to the potentially zoonotic enteric pathogens most frequently isolated from human gastrointestinal infections in New Zealand.
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Affiliation(s)
- A Grinberg
- Institute of Veterinary, Animal and Biomedical Sciences, Massey University, Private Bag 11222, Palmerston North, New Zealand.
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38
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Kneif D, Downing M, Ashcroft GP, Gibson P, Knight D, Ledingham W, Hutchison J. Peri-acetabular radiolucent lines: inter- and intra-observer agreement on post-operative radiographs. Int Orthop 2005; 29:152-5. [PMID: 15806358 PMCID: PMC3456885 DOI: 10.1007/s00264-005-0644-8] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/14/2004] [Accepted: 01/21/2005] [Indexed: 11/30/2022]
Abstract
Peri-acetabular radiolucent lines (RLLs) seen on "early" post-operative radiographs have been identified as a potential predictor of long-term implant performance. This study examines the inter- and intra-observer variation encountered when assessing such radiographs. Four consultant orthopaedic surgeons assessed the presence, extent and width of RLLs in 220 radiographs performed on 50 patients taken one to two weeks, six weeks, six months and one year following surgery. Inter-observer agreement was fair at 7-14 days but improved to moderate to good in films at six and 12 months. Intra-observer agreement was moderate to good at 7-10 days but again improved to good at 6 and 12 months. When only the presence or absence of RLLs was considered, both inter-observer and intra-observer agreement improved for both the six-month and one-year radiographs. This experiment shows that caution must be used for the interpretation of RLLs on hip radiographs taken during the very early post-operative period. We recommend that films taken at least six weeks to six months following surgery should be used for assessment to reduce observer variation. For optimum results, a single experienced observer should do the assessment with a simple classification.
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Affiliation(s)
- D. Kneif
- Department of Orthopaedics, Aberdeen University, Aberdeen, UK
| | - M. Downing
- Department of Orthopaedics, Aberdeen University, Aberdeen, UK
| | - G. P. Ashcroft
- Department of Orthopaedics, Aberdeen University, Aberdeen, UK
- Department of Orthopaedics, Aberdeen Medical School, Foresterhill, Aberdeen, AB25 2ZD Scotland UK
| | - P. Gibson
- Department of Orthopaedics, Aberdeen University Hospital Trust, Aberdeen, UK
| | - D. Knight
- Department of Orthopaedics, Aberdeen University Hospital Trust, Aberdeen, UK
| | - W. Ledingham
- Department of Orthopaedics, Aberdeen University Hospital Trust, Aberdeen, UK
| | - J. Hutchison
- Department of Orthopaedics, Aberdeen University, Aberdeen, UK
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Davies JS, Holter JL, Knight D, Beaucourt SM, Murphy D, Carter DA, Wells T. Manipulating sorting signals to generate co-expression of somatostatin and eGFP in the regulated secretory pathway from a monocistronic construct. J Mol Endocrinol 2004; 33:523-32. [PMID: 15525606 DOI: 10.1677/jme.1.01578] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
Targeted overexpression of biologically active peptides represents a powerful approach to the functional dissection of neuroendocrine systems. However, the requirement to generate separate, biologically active and reporter molecules necessitates the use of internal ribosome entry site (IRES) technology, which often results in preferential translation of the second cistron. We report here a novel approach in which the proteolytic processing machinery of the regulated secretory pathway (RSP) has been exploited to generate multiple mature proteins from a monocistronic construct that encodes a single precursor. This was achieved by duplication of the pre-pro cleavage sites in pre-prosomatostatin cDNA. The duplicated site included 10 flanking amino acids on either side of the Gly-Ala cleavage position. This enabled the incorporation of a foreign protein-coding sequence (in this case, enhanced green fluorescent protein (eGFP)) between these sites. The pre-eGFP-prosomatostatin (PEPS) construct generated co-localized expression of fully processed eGFP and somatostatin to the RSP of transiently transfected AtT20 cells. This approach represents an advance upon bicistronic and other extant approaches to the targeting of multiple, biologically active proteins to neuroendocrine systems, and, importantly, permits the co-expression of fluorescent markers with biologically active neuropeptides. In this study, our demonstration of the fusion of the first 10 amino acids of the prosomatostatin sequence to the N-terminus of eGFP shows that this putative sorting sequence is sufficient to direct expression to the RSP.
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Affiliation(s)
- J S Davies
- School of Biosciences, Cardiff University, PO Box 911, Museum Avenue, Cardiff CF10 3US, UK
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Lane C, Knight D, Burgess S, Franklin P, Horak F, Legg J, Moeller A, Stick S. Epithelial inducible nitric oxide synthase activity is the major determinant of nitric oxide concentration in exhaled breath. Thorax 2004; 59:757-60. [PMID: 15333851 PMCID: PMC1747143 DOI: 10.1136/thx.2003.014894] [Citation(s) in RCA: 186] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
BACKGROUND The fractional concentration of nitric oxide (NO) in exhaled breath (FeNO) is increased in asthma. There is a general assumption that NO synthase (NOS) 2 in epithelium is the main source of NO in exhaled breath. However, there is no direct evidence to support the assumption and data from animal models suggest that non-inducible NOS systems have important roles in determining airway reactivity, regulating inflammation, and might contribute significantly to NO measured in exhaled breath. METHODS Bronchial epithelial cells were obtained from healthy, atopic, and asthmatic children by non-bronchoscopic brushing. Exhaled NO (FeNO) was measured directly using a fast response chemiluminescence NO analyser. RNA was extracted from the epithelial cells and real time polymerase chain reaction was used to determine the expression of NOS isoenzymes. NOS2 was examined in macrophages and epithelial cells by immunohistochemistry. RESULTS NOS1 mRNA was not detectable. NOS3 mRNA was detected in 36 of 43 samples at lower levels than NOS2 mRNA which was detectable in all samples. The median FeNO was 15.5 ppb (95% CI 10 to 18.1). There was a significant correlation between FeNO and NOS2 expression (R = 0.672, p<0.001). All epithelial cells exhibited NOS2 staining, whereas staining in the macrophages was variable and not related to phenotype. CONCLUSIONS Only NOS2 expression was associated with FeNO in respiratory epithelial cells obtained from children (R = 0.672; p<0.001). This suggests that FeNO variability is largely determined by epithelial NOS2 expression with little contribution from other isoforms.
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Affiliation(s)
- C Lane
- School of Paediatrics and Child Health, University of Western Ausatralia, Perth, Western Australia
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McIntyre CL, Hermann SM, Casu RE, Knight D, Drenth J, Tao Y, Brumbley SM, Godwin ID, Williams S, Smith GR, Manners JM. Homologues of the maize rust resistance gene Rp1-D are genetically associated with a major rust resistance QTL in sorghum. Theor Appl Genet 2004; 109:875-83. [PMID: 15156283 DOI: 10.1007/s00122-004-1702-0] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/26/2003] [Accepted: 04/01/2004] [Indexed: 05/22/2023]
Abstract
As part of a comparative mapping study between sugarcane and sorghum, a sugarcane cDNA clone with homology to the maize Rp1-D rust resistance gene was mapped in sorghum. The cDNA probe hybridised to multiple loci, including one on sorghum linkage group (LG) E in a region where a major rust resistance QTL had been previously mapped. Partial sorghum Rp1-D homologues were isolated from genomic DNA of rust-resistant and -susceptible progeny selected from a sorghum mapping population. Sequencing of the Rp1-D homologues revealed five discrete sequence classes: three from resistant progeny and two from susceptible progeny. PCR primers specific to each sequence class were used to amplify products from the progeny and confirmed that the five sequence classes mapped to the same locus on LG E. Cluster analysis of these sorghum sequences and available sugarcane, maize and sorghum Rp1-D homologue sequences showed that the maize Rp1-D sequence and the partial sugarcane Rp1-D homologue were clustered with one of the sorghum resistant progeny sequence classes, while previously published sorghum Rp1-D homologue sequences clustered with the susceptible progeny sequence classes. Full-length sequence information was obtained for one member of a resistant progeny sequence class ( Rp1-SO) and compared with the maize Rp1-D sequence and a previously identified sorghum Rp1 homologue ( Rph1-2). There was considerable similarity between the two sorghum sequences and less similarity between the sorghum and maize sequences. These results suggest a conservation of function and gene sequence homology at the Rp1 loci of maize and sorghum and provide a basis for convenient PCR-based screening tools for putative rust resistance alleles in sorghum.
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Affiliation(s)
- C L McIntyre
- CSIRO Plant Industry, Queensland Bioscience Precinct, 306 Carmody Road, St. Lucia, Brisbane, QLD 4067, Australia.
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Zhang Y, Butz J, Curtis J, Beaudry N, Bletscher W, Erwin K, Knight D, Milster T, Walker E. Characterization of a bit-wise volumetric storage medium for a space environment. Opt Express 2004; 12:2662-2669. [PMID: 19475107 DOI: 10.1364/opex.12.002662] [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] [Subscribe] [Scholar Register] [Indexed: 05/27/2023]
Abstract
We report playback performance results of volumetric optical data storage disks that are made from a class of light-absorbing (photo-chromic) compounds. The disks are exposed to a simulated space environment with respect to temperature and radiation. To test for temperature sensitivity, a vacuum oven bakes the disks for certain amount of time at a designated temperature. Radiation exposure includes heavy ions and high energy protons. Disks fail in high temperature and large proton-dose conditions. Heavy ions do not cause significant disk failure. The prevention of disk failure due to harsh space environments is also discussed.
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Gilbert FJ, Grant AM, Gillan MGC, Vale L, Scott NW, Campbell MK, Wardlaw D, Knight D, McIntosh E, Porter RW. Does early imaging influence management and improve outcome in patients with low back pain? A pragmatic randomised controlled trial. Health Technol Assess 2004; 8:iii, 1-131. [PMID: 15130462 DOI: 10.3310/hta8170] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.1] [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: 11/22/2022] Open
Abstract
OBJECTIVES To establish whether the early use of sophisticated imaging techniques influences the clinical management and outcome of patients with low back pain (LBP) and whether it is cost-effective. DESIGN A pragmatic multicentre randomised controlled trial using a standard two parallel group approach incorporating an economic evaluation. For a subgroup of trial participants, a controlled 'before and after' approach was used to assess the impact of 'early imaging' on clinicians' diagnostic and therapeutic confidence. SETTING AND PARTICIPANTS A total of 782 participants who had been referred by their general practitioner to a consultant orthopaedic specialist or neurosurgeon because of symptomatic lumbar spine disorders. The study included 14 hospitals in Scotland and one in England over a 24-month period. RESULTS Participants in both groups reported an improvement in health status at 8 and 24 months with the 'early imaging' group having statistically significantly better outcome. Other than the proportion of participants receiving imaging (90% versus 30%), there were few differences between the groups in the management received throughout the 24-month follow-up. The total number of outpatient consultations in the two groups was similar although more people in the 'early imaging' group had return outpatient appointments during the 8-month follow-up. Clinicians' diagnostic confidence, between trial entry and follow-up, increased significantly for both groups with a greater increase in the 'early imaging' group. The cost of imaging was the main determinant of the difference in total costs between the groups and it was estimated that 'early imaging' could provide an additional 0.07 quality-adjusted life-years (QALYs), at an additional average cost of 61 British pounds over the 24-month follow-up. Using non-imputed costs and QALYs but adjusted for baseline differences in EQ-5D score, the mean incremental cost per QALY of 'early imaging' was 870 British pounds. The results were sensitive to the costs of imaging and the confidence intervals surrounding estimates of average costs and QALYs. CONCLUSIONS The early use of sophisticated imaging does not appear to affect management overall but does result in a slight improvement in clinical outcome at an estimated cost of 870 British pounds per QALY. Imaging was associated with an increase in clinicians' diagnostic confidence, particularly for non-specialists. Further research is required to determine if more rapid referral to sophisticated imaging and secondary care is important in the acute episode and whether the use of imaging would be more beneficial for particular categories of LBP.
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Affiliation(s)
- F J Gilbert
- Department of Radiology, University of Aberdeen, UK
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Abstract
Camptothecin is an example of a potent drug with a short half-life that would benefit from a localized drug depot system that maintains its stability prior to being released. For this reason, a thermoplastic, biodegradable polymer drug depot was prepared and characterized, and the in vitro release of camptothecin examined. epsilon-Caprolactone oligomers were prepared by ring-opening polymerization initiated by various alcohols. The polymers were characterized via differential scanning calorimeter (DSC) for thermal transitions, and via a parallel plate rheometer for melt viscosity. Camptothecin was loaded into the oligomers and released into PBS buffer. The viscosity of the oligomers was alterable by the initiator used. The oligomers were semi-crystalline with melting points between 37 and 45 degrees C. Camptothecin was released from the oligomers in a diffusion-controlled manner, with the release rate increasing as the melt viscosity of the oligomer decreased. The unreleased camptothecin remained in its active lactone form for a period of up to 16 weeks.
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Affiliation(s)
- A Hatefi
- Faculty of Pharmacy and Pharmaceutical Sciences, University of Alberta, Edmonton, Alberta, Canada K7L 3N6
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Abstract
Injectable thermoplastic oligomers represent a promising biomaterial for drug delivery provided they possess a melting point at or very near physiologic temperature, as well as a low melt viscosity. One approach would be to prepare an oligolactone. In this paper, we examine the role of different alcohol initiators used in the ring-opening polymerization of epsilon-caprolactone oligomers on the melting point and melt viscosity of the resultant thermoplastics. We found that the initiator used plays a significant role in the final properties of the final oligomer. For primary alcohols, the longer the chain length of the oligomer the lower its melt viscosity, until a chain length of 8 carbons, after which there was no noticeable effect. There was no significant effect observed of primary initiators on the melting point. The use of secondary alcohols produced oligomers with higher viscosities but with reduced overall crystallinity. The use of an unsaturated alcohol, oleyl alcohol, not only reduced the melting point and overall crystallinity but also reduced the melt viscosity of the oligomer. The oleyl alcohol initiated oligomer appears to be a promising vehicle for localized, sustained drug delivery applications.
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Affiliation(s)
- B Amsden
- Department of Chemical Engineering, Queen's University, Kingston, Ontario, Canada K7L 3N6
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Knight D, Bellingham MC, Lavidis NA. The effect of N-ethylmaleimide on transmitter release from the skeletal neuromuscular junction ofBufo marinus. Synapse 2004; 53:151-8. [PMID: 15236347 DOI: 10.1002/syn.20044] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [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: 11/09/2022]
Abstract
N-ethylmaleimide (NEM) has been used extensively in biochemical assays as an inhibitor of the NEM sensitive fusion protein (NSF). However, examination of the effect of NEM on transmitter release in more physiologically relevant preparations has proved inconclusive. In the present study, we have examined the effect of low concentrations of NEM on synaptic transmission in intact nerve-muscle preparations from toads (Bufo marinus). Under conditions of low transmitter release probability (0.3 mM calcium, 1 mM magnesium), treatment with NEM (10 microM) caused a significant increase in the amplitude of stimulus-evoked endplate potentials (EPPs) and a significant increase in the frequency of spontaneously occurring miniature EPPS (MEPPS) without affecting the amplitude of MEPPs. When the calcium concentration in the bath was raised to 4 mM, 10 microM NEM had no effect on EPP amplitude. Under these conditions, NEM treatment reduced paired pulse facilitation and increased depression during stimulus trains. Treatment with NEM also resulted in a significant decrease in the synaptic delay. The effects of NEM on transmitter release in the present study were not due to inactivation of G-proteins. The results of the present study show a calcium-dependent facilitation of stimulus-evoked transmitter release by NEM. These results are discussed in terms of the possible sites of NEM action leading to the observed changes in transmitter release.
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Affiliation(s)
- D Knight
- School of Biomedical Sciences, University of Queensland, St Lucia. QLD, Australia 4072.
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Affiliation(s)
- S. Ross
- Bioelectrodynamics Laboratory, Biology Department
| | - R. Newton
- Bioelectrodynamics Laboratory, Biology Department
| | - Y.‐M. Zhou
- Bioelectrodynamics Laboratory, Biology Department
| | - J. Haffegee
- Bioelectrodynamics Laboratory, Biology Department
| | - M.‐W. Ho
- Bioelectrodynamics Laboratory, Biology Department
| | - J. P. Bolton
- Physics Department, Open University, Walton Hall, Milton Keynes MK7 6AA, U.K
| | - D. Knight
- Bioscience Group, King Alfred's College, Sparkford Road, Winchester SO22 4NR, U.K
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Knight D, D'Arbe M, Liang S, Phillips WD, Lavidis NA. Regional differences in sympathetic purinergic transmission along the length of the mouse vas deferens. Synapse 2003; 47:225-35. [PMID: 12494405 DOI: 10.1002/syn.10119] [Citation(s) in RCA: 14] [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: 11/09/2022]
Abstract
Contraction of the smooth muscle in the mouse vas deferens is elicited by sympathetic nerves releasing at least two neurotransmitters, adenosine triphosphate (ATP) and noradrenaline (NA). Several studies have indicated the presence of regional variation in the purinergic and noradrenergic contributions to sympathetic nerve-evoked contractions in rodent vasa deferentia. We examined the relative contribution of ATP and NA to neurotransmission and contraction at the prostatic and epididymal ends of the mouse vas deferens. The success rate of recording excitatory junction currents (EJCs, extracellular indication of ATP release) from varicosities at the prostatic end of the vas deferens was eight times greater than for varicosities located at the epididymal end. Both regions of the vas deferens responded similarly to focal application of NA and ATP. Furthermore, the relative density and distribution of P2X(1)-receptor mRNA and anti-P2X(1) immunostaining did not differ between the two regions. Our results suggest that most varicosities located at the epididymal end of the vas deferens are releasing an insufficient amount of ATP to evoke detectable EJCs.
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Affiliation(s)
- D Knight
- School of Biomedical Sciences, The University of Queensland, St Lucia, QLD, Australia, 4072
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49
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Abstract
This article describes three extremely low birth weight infants with Staphylococcus aureus septicemia associated with insertion of a percutaneous central venous catheter who later developed endocarditis. Echocardiography demonstrated large vegetations although only one infant had a murmur. Following a 6-week course of intravenous flucloxacillin and netilmicin, the endocarditis completely resolved and further intervention was unnecessary, although one baby died later as a result of volvulus and chronic lung disease. Echocardiography should be performed to exclude invasive infection in infants with S. aureus septicemia even when there is no murmur or other evidence of endocarditis. If endocarditis is identified, a good outcome is possible with appropriate aggressive antibiotic therapy.
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Affiliation(s)
- D Armstrong
- Department of Neonatal Paediatrics, University of Auckland, National Women's Hospital, Green Lane Hospital, Auckland, New Zealand
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50
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Riekel C, Madsen B, Knight D, Vollrath F. X-ray diffraction on spider silk during controlled extrusion under a synchrotron radiation X-ray beam. Biomacromolecules 2002; 1:622-6. [PMID: 11710191 DOI: 10.1021/bm000047c] [Citation(s) in RCA: 86] [Impact Index Per Article: 3.9] [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: 11/28/2022]
Abstract
The structure of a single thread of Nephila edulis silk has been studied by in situ X-ray diffraction from a living spider. A systematic increase of orientational order with increasing silking speed up to 40 mm s-1 was observed. Within a few mm from the spinnerets exit, crystalline domains with a beta-poly(L-alanine) structure were observed. The data also suggest an increase in crystalline fraction in the immediate vicinity of the spigot exit.
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Affiliation(s)
- C Riekel
- European Synchrotron Radiation Facility, B.P. 220, F-38043 Grenoble, France
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