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Ebert M, Gulliford S, Foo K, Haworth A, Kennedy A, Joseph D, Denham J. PD-0547: GI dose constraints for prostate radiotherapy: Derivation by toxicity and localised anatomy. Radiother Oncol 2014. [DOI: 10.1016/s0167-8140(15)30653-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Bruce J, Parker A, Donald M, Esposito M, Curatolo L, Kennedy A, Simpson K, Morton C, Cormack J, Austin M. Impact of a dedicated trauma desk in ambulance control on the identification of major trauma in Scotland. Crit Care 2014. [PMCID: PMC4068883 DOI: 10.1186/cc13256] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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Agnese R, Ahmed Z, Anderson AJ, Arrenberg S, Balakishiyeva D, Basu Thakur R, Bauer DA, Billard J, Borgland A, Brandt D, Brink PL, Bruch T, Bunker R, Cabrera B, Caldwell DO, Cerdeno DG, Chagani H, Cooley J, Cornell B, Crewdson CH, Cushman P, Daal M, Dejongh F, do Couto e Silva E, Doughty T, Esteban L, Fallows S, Figueroa-Feliciano E, Filippini J, Fox J, Fritts M, Godfrey GL, Golwala SR, Hall J, Harris RH, Hertel SA, Hofer T, Holmgren D, Hsu L, Huber ME, Jastram A, Kamaev O, Kara B, Kelsey MH, Kennedy A, Kim P, Kiveni M, Koch K, Kos M, Leman SW, Loer B, Lopez Asamar E, Mahapatra R, Mandic V, Martinez C, McCarthy KA, Mirabolfathi N, Moffatt RA, Moore DC, Nadeau P, Nelson RH, Page K, Partridge R, Pepin M, Phipps A, Prasad K, Pyle M, Qiu H, Rau W, Redl P, Reisetter A, Ricci Y, Saab T, Sadoulet B, Sander J, Schneck K, Schnee RW, Scorza S, Serfass B, Shank B, Speller D, Sundqvist KM, Villano AN, Welliver B, Wright DH, Yellin S, Yen JJ, Yoo J, Young BA, Zhang J. Silicon detector dark matter results from the final exposure of CDMS II. PHYSICAL REVIEW LETTERS 2013; 111:251301. [PMID: 24483735 DOI: 10.1103/physrevlett.111.251301] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2013] [Revised: 07/27/2013] [Indexed: 06/03/2023]
Abstract
We report results of a search for weakly interacting massive particles (WIMPS) with the silicon detectors of the CDMS II experiment. This blind analysis of 140.2 kg day of data taken between July 2007 and September 2008 revealed three WIMP-candidate events with a surface-event background estimate of 0.41(-0.08)(+0.20)(stat)(-0.24)(+0.28)(syst). Other known backgrounds from neutrons and 206Pb are limited to <0.13 and <0.08 events at the 90% confidence level, respectively. The exposure of this analysis is equivalent to 23.4 kg day for a recoil energy range of 7-100 keV for a WIMP of mass 10 GeV/c2. The probability that the known backgrounds would produce three or more events in the signal region is 5.4%. A profile likelihood ratio test of the three events that includes the measured recoil energies gives a 0.19% probability for the known-background-only hypothesis when tested against the alternative WIMP+background hypothesis. The highest likelihood occurs for a WIMP mass of 8.6 GeV/c2 and WIMP-nucleon cross section of 1.9×10(-41) cm2.
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Humayun M, Nemchin A, Zanda B, Hewins RH, Grange M, Kennedy A, Lorand JP, Göpel C, Fieni C, Pont S, Deldicque D. Origin and age of the earliest Martian crust from meteorite NWA 7533. Nature 2013; 503:513-6. [PMID: 24256724 DOI: 10.1038/nature12764] [Citation(s) in RCA: 240] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/04/2013] [Accepted: 10/10/2013] [Indexed: 11/09/2022]
Abstract
The ancient cratered terrain of the southern highlands of Mars is thought to hold clues to the planet's early differentiation, but until now no meteoritic regolith breccias have been recovered from Mars. Here we show that the meteorite Northwest Africa (NWA) 7533 (paired with meteorite NWA 7034) is a polymict breccia consisting of a fine-grained interclast matrix containing clasts of igneous-textured rocks and fine-grained clast-laden impact melt rocks. High abundances of meteoritic siderophiles (for example nickel and iridium) found throughout the rock reach a level in the fine-grained portions equivalent to 5 per cent CI chondritic input, which is comparable to the highest levels found in lunar breccias. Furthermore, analyses of three leucocratic monzonite clasts show a correlation between nickel, iridium and magnesium consistent with differentiation from impact melts. Compositionally, all the fine-grained material is alkalic basalt, chemically identical (except for sulphur, chlorine and zinc) to soils from Gusev crater. Thus, we propose that NWA 7533 is a Martian regolith breccia. It contains zircons for which we measured an age of 4,428 ± 25 million years, which were later disturbed 1,712 ± 85 million years ago. This evidence for early crustal differentiation implies that the Martian crust, and its volatile inventory, formed in about the first 100 million years of Martian history, coeval with earliest crust formation on the Moon and the Earth. In addition, incompatible element abundances in clast-laden impact melt rocks and interclast matrix provide a geochemical estimate of the average thickness of the Martian crust (50 kilometres) comparable to that estimated geophysically.
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Letourneau J, Richey P, Kennedy A, Prevatt BS, Mersereau J. Novel infertility screening questionnaire predicts need for mental health counseling in patients presenting for infertility evaluation. Fertil Steril 2013. [DOI: 10.1016/j.fertnstert.2013.07.638] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Donnelly N, Harper R, McCanderson J, Branagh D, Kennedy A, Caulfield M, McLaughlin J. Development of a ubiquitous clinical monitoring solution to improve patient safety and outcomes. ANNUAL INTERNATIONAL CONFERENCE OF THE IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. IEEE ENGINEERING IN MEDICINE AND BIOLOGY SOCIETY. ANNUAL INTERNATIONAL CONFERENCE 2013; 2012:6068-73. [PMID: 23367313 DOI: 10.1109/embc.2012.6347378] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
This paper highlights the main findings of an integrated and ubiquitous remote wireless based vital signs monitoring solution as trialed in a clinical setting. Results demonstrate the feasibility of utilising a Wi-Fi based solution to monitor early-warning signs such as impedance-based respiration rate changes, heart rate/ECG events, temperature, and motion analysis in a clinical setting and act as an early warning system.
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Kennedy A, Littlewood T, Bennett M, Yu H. 162 FORKHEAD TRANSCRIPTION FACTOR FOXO3A POTENTLY INDUCES SMOOTH MUSCLE CELL APOPTOSIS AND PROMOTES EXTRACELLULAR MATRIX DEGRADATION THROUGH ACTIVATION OF MATRIX METALLOPROTEINASES. BRITISH HEART JOURNAL 2013. [DOI: 10.1136/heartjnl-2013-304019.162] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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108
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Chasen M, Kennedy A. The growing pains of cancer survivors: a call for a paradigm of interdisciplinary care. Curr Oncol 2013. [DOI: 10.3747/co.20.1211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
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109
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Richette P, McCarthy G, Doherty M, Husted H, Jameson S, Reed M, Murray Brunt A, Bosworth A, Buch M, Symmons D, Row I, Dawes P, Bower P, Porter T, Sanders T, Nio Ong B, Cheraghi-Sohi S, Bower P, Kennedy A, Morden A, Rogers A, Richardson J, Sanders T, Stevenson F, Nio Ong B, Weinman J, Cordingley L, Dean S, Hosking DJ, Aihie Sayer A, Compston J, Mukhtyar C, Bruce I, Thachil J, Wilkie R, Black DC, Gunnyeon B, Walker D, Higginbottom A, Flurey CA, Hewlett S, Ricketts B, Gordon C. New Insights on the Pathogenesis and Treatment of Crystal Arthritis. Rheumatology (Oxford) 2013. [DOI: 10.1093/rheumatology/ket020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
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110
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Chasen M, Kennedy A. The Growing Pains of Cancer Survivors: A Call for a Paradigm of Interdisciplinary Care. Curr Oncol 2013; 20:e57-8. [DOI: 10.3747/co.20.121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
As improved cancer surveillance, more accurate diagnosis[...].
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Nirantharakumar K, Marshall T, Kennedy A, Narendran P, Hemming K, Coleman JJ. Hypoglycaemia is associated with increased length of stay and mortality in people with diabetes who are hospitalized. Diabet Med 2012; 29:e445-8. [PMID: 22937877 DOI: 10.1111/dme.12002] [Citation(s) in RCA: 98] [Impact Index Per Article: 8.2] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
AIM To study the length of stay and inpatient mortality of patients with diabetes who had an episode of hypoglycaemia in a non critical care setting at University Hospital Birmingham, UK. METHODS Retrospective analysis of routinely available electronic data of 6374 admissions with a recording of either laboratory or point-of-care blood glucose value. Based on the lowest recorded blood glucose values, patients were categorized into a group without hypoglycaemia (> 3.9 mmol/l), a group with mild to moderate hypoglycaemia (2.3-3.9 mmol/l) and a group with severe hypoglycaemic (≤ 2.2 mmol/l). Length of stay and inpatient mortality were compared between the three groups, adjusting for age, gender, ethnicity, deprivation, admission type, use of insulin and modified Charlson co-morbidity score. RESULTS There were 148 admissions (2.3%) with severe hypoglycaemia (≤ 2.2 mmol/l), 500 admissions (7.8%) with mild to moderate hypoglycaemia (2.2-3.9 mmol/l) and 5726 admissions with no recorded hypoglycaemic episode (> 3.9 mmol/l). After adjustment, length of stay, when compared with those without a recorded hypoglycaemic episode, was 1.51 (95% CI 1.35-1.68) times higher in the group with blood glucose values of 2.3-3.9 mmol/l and 2.33 (95% CI 1.91-2.84) higher in the group with blood glucose values ≤ 2.2 mmol/l. Adjusted odds ratio of inpatient mortality when compared with the group without hypoglycaemia was 1.62 (95% CI 1.16-2.27) in the group with blood glucose values of 2.3-3.9 mmol/l and 2.05 (95% CI 1.24-3.38) in the group with blood glucose values ≤ 2.2 mmol/l. CONCLUSION Hypoglycaemia is associated with increased length of stay and inpatient mortality. Whilst causative evidence is lacking, our data are consistent with the need to avoid hypoglycaemia in our current and continued approach for optimal glycaemic control in people with diabetes admitted to hospital.
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Dassan P, Geranmayeh F, Davies N, Janssen J, Kennedy A. INPATIENT OBSTETRIC REFERRALS TO NEUROLOGY SERVICES: A CROSS-SECTIONAL SURVEY. J Neurol Psychiatry 2012. [DOI: 10.1136/jnnp-2012-304200a.105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Frey FA, Garcia MO, Wise WS, Kennedy A, Gurriet P, Albarede F. The evolution of Mauna Kea Volcano, Hawaii: Petrogenesis of tholeiitic and alkalic basalts. ACTA ACUST UNITED AC 2012. [DOI: 10.1029/91jb00940] [Citation(s) in RCA: 130] [Impact Index Per Article: 10.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Hodgson P, Towers A, Keast DH, Kennedy A, Pritzker R, Allen J. Lymphedema in Canada: a qualitative study to help develop a clinical, research, and education strategy. ACTA ACUST UNITED AC 2012; 18:e260-4. [PMID: 22184493 DOI: 10.3747/co.v18i5.787] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
OBJECTIVE The aim of this study was to gather data from Canadian stakeholders to help construct a national strategy and agenda for lymphedema management. METHODS The Canadian Lymphedema Framework, a collaboration of medical academics, lymphedema therapists, patient advocates, and others, used participatory action research and Open Space Technology to identify issues and build consensus at a national meeting of lymphedema stakeholders. Proceedings were videotaped and underwent content analysis. Existing Canadian documentation on lymphedema services was analyzed. Using those data sources, the Canadian Lymphedema Framework drafted a development strategy. RESULTS Of 320 invited stakeholders (patients, therapists, physicians, industry representatives, and health policymakers), 108 participated in a day-long videotaped meeting discussing strategies to improve the management of lymphedema and related disorders in Canada. Participants identified barriers, challenges, and issues related to the need to raise awareness about lymphedema with patients, physicians, and the public. Five priority areas for development were articulated: education, standards, research, reimbursement and access to treatment, and advocacy. The main barrier to development was identified as the lack of clear responsibility within the health care system for lymphedema care. CONCLUSIONS Data from stakeholders was obtained to solidly define priority areas for lymphedema development at a national level. The Canadian Lymphedema Framework has created a working plan, an advisory board, and working groups to implement the strategy.
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Chimen M, Kennedy A, Nirantharakumar K, Pang TT, Andrews R, Narendran P. What are the health benefits of physical activity in type 1 diabetes mellitus? A literature review. Diabetologia 2012; 55:542-51. [PMID: 22189486 DOI: 10.1007/s00125-011-2403-2] [Citation(s) in RCA: 265] [Impact Index Per Article: 22.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/25/2011] [Accepted: 11/02/2011] [Indexed: 02/06/2023]
Abstract
Physical activity improves well-being and reduces the risk of heart disease, cancer and type 2 diabetes mellitus in the general population. In individuals with established type 2 diabetes, physical activity improves glucose and lipid levels, reduces weight and improves insulin resistance. In type 1 diabetes mellitus, however, the benefits of physical activity are less clear. There is poor evidence for a beneficial effect of physical activity on glycaemic control and microvascular complications, and significant risk of harm through hypoglycaemia. Here we review the literature relating to physical activity and health in type 1 diabetes. We examine its effect on a number of outcomes, including glycaemic control, lipids, blood pressure, diabetic complications, well-being and overall mortality. We conclude that whilst there is sufficient evidence to recommend physical activity in the management of type 1 diabetes, it is still unclear as to what form, duration and intensity should be recommended and whether there is benefit for many of the outcomes examined.
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Mead S, Ranopa M, Gopalakrishnan GS, Thompson AGB, Rudge P, Wroe S, Kennedy A, Hudson F, MacKay A, Darbyshire JH, Collinge J, Walker AS. PRION-1 scales analysis supports use of functional outcome measures in prion disease. Neurology 2011; 77:1674-83. [PMID: 22013183 DOI: 10.1212/wnl.0b013e3182364890] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
OBJECTIVES Human prion diseases are heterogeneous but invariably fatal neurodegenerative disorders with no known effective therapy. PRION-1, the largest clinical trial in prion disease to date, showed no effect of the potential therapeutic quinacrine on survival. Although there are several limitations to the usefulness of survival as an outcome measure, there have been no comprehensive studies of alternatives. METHODS To address this we did comparative analyses of neurocognitive, psychiatric, global, clinician-rated, and functional scales, focusing on validity, variability, and impact on statistical power over 77 person-years follow-up in 101 symptomatic patients in PRION-1. RESULTS Quinacrine had no demonstrable benefit on any of the 8 scales (p > 0.4). All scales had substantial numbers of patients with the worst possible score at enrollment (Glasgow Coma Scale score being least affected) and were impacted by missing data due to disease progression. These effects were more significant for cognitive/psychiatric scales than global, clinician-rated, or functional scales. The Barthel and Clinical Dementia Rating scales were the most valid and powerful in simulated clinical trials of an effective therapeutic. A combination of selected subcomponents from these 2 scales gave somewhat increased power, compared to use of survival, to detect clinically relevant effects in future clinical trials of feasible size. CONCLUSIONS Our findings have implications for the choice of primary outcome measure in prion disease clinical trials. Prion disease presents the unusual opportunity to follow patients with a neurodegenerative disease through their entire clinical course, and this provides insights relevant to designing outcome measures in related conditions.
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Tremblay L, Kennedy A, Nath A. Modulation of multisensory processing during rapid reaching movements. J Vis 2011. [DOI: 10.1167/11.11.793] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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118
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Kennedy A, Tremblay L. Vision at high limb velocities: The importance of visual feedback for online control at high limb velocities early in a movement. J Vis 2011. [DOI: 10.1167/11.11.945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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Kennedy A. A CRITICAL REVIEW: THE TREATMENT OF MENTAL DISORDERS BY INDUCED CONVULSIONS. J Neurol Psychiatry 2011; 3:49-82. [PMID: 21610967 DOI: 10.1136/jnnp.3.1.49] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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120
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Sanders C, Rogers A, Gardner C, Kennedy A. Managing 'difficult emotions' and family life: exploring insights and social support within online self-management training. Chronic Illn 2011; 7:134-46. [PMID: 21357644 DOI: 10.1177/1742395310390232] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND Previous research has demonstrated how the Internet can foster emotional support and provide a 'private' space for discussing sensitive issues. Whilst the family has been located as a primary source of support, empirical research on the dynamics of close personal relationships in chronic illness experience remains a challenge. OBJECTIVE To explore the role of family relationships in supporting self-care and the nature of social support exchanged within an online self-management training course. METHODS Qualitative thematic and narrative analysis of online discussion boards. Postings for 218 participants, divided between 11 groups were included for a course section that focused on 'difficult emotions'. RESULTS Participants exchanged a high degree of emotional support and revealed much about their 'real life' relationships. The latter highlighted the complexities of managing illness within family contexts alongside additional pressures of daily life such as caring commitments and work roles. DISCUSSION The private interactive space created within the course allowed insights into the dynamics of family life associated with illness management that are challenging to research. Simultaneously, collective support was developed amongst this group of predominantly working women. The article points to the implications for such interventions and associated evaluative research beyond this selective group.
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Wade PR, De Robertis A, Hough KR, Booth R, Kennedy A, LeDuc RG, Munger L, Napp J, Shelden KEW, Rankin S, Vasquez O, Wilson C. Rare detections of North Pacific right whales in the Gulf of Alaska, with observations of their potential prey. ENDANGER SPECIES RES 2011. [DOI: 10.3354/esr00324] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
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122
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Kennedy A. On eating potatoes. Lancet 2010; 376:1902. [PMID: 21130291 DOI: 10.1016/s0140-6736(10)62217-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Muenchberger H, Kendall E, Kennedy A, Charker J. Living with brain injury in the community: Outcomes from a community-based self-management support (CB-SMS) programme in Australia. Brain Inj 2010; 25:23-34. [DOI: 10.3109/02699052.2010.531689] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
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Ng CT, Biniecka M, Kennedy A, McCormick J, Fitzgerald O, Bresnihan B, Buggy D, Taylor CT, O'Sullivan J, Fearon U, Veale DJ. Synovial tissue hypoxia and inflammation in vivo. Ann Rheum Dis 2010; 69:1389-95. [PMID: 20439288 PMCID: PMC2946116 DOI: 10.1136/ard.2009.119776] [Citation(s) in RCA: 168] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/05/2022]
Abstract
INTRODUCTION Hypoxia is a microenvironmental feature in the inflamed joint, which promotes survival advantage for cells. The aim of this study was to examine the relationship of partial oxygen pressure in the synovial tissue (tPO(2)) in patients with inflammatory arthritis with macroscopic/microscopic inflammation and local levels of proinflammatory mediators. METHODS Patients with inflammatory arthritis underwent full clinical assessment and video arthroscopy to quantify macroscopic synovitis and measure synovial tPO(2) under direct visualisation. Cell specific markers (CD3 (T cells), CD68 (macrophages), Ki67 (cell proliferation) and terminal deoxynucleotidyl transferase dUTP nick end labelling (cell apoptosis)) were quantified by immunohistology. In vitro migration was assessed in primary and normal synoviocytes (synovial fibroblast cells (SFCs)) using a wound repair scratch assay. Levels of tumour necrosis factor alpha (TNFalpha), interleukin 1beta (IL1beta), interferon gamma (IFNgamma), IL6, macrophage inflammatory protein 3alpha (MIP3alpha) and IL8 were quantified, in matched serum and synovial fluid, by multiplex cytokine assay and ELISA. RESULTS The tPO(2) was 22.5 (range 3.2-54.1) mm Hg and correlated inversely with macroscopic synovitis (r=-0.421, p=0.02), sublining CD3 cells (-0.611, p<0.01) and sublining CD68 cells (r=-0.615, p<0.001). No relationship with cell proliferation or apoptosis was found. Primary and normal SFCs exposed to 1% and 3% oxygen (reflecting the median tPO(2) in vivo) induced cell migration. This was coupled with significantly higher levels of synovial fluid tumour necrosis factor alpha (TNFalpha), IL1beta, IFNgamma and MIP3alpha in patients with tPO(2) <20 mm Hg (all p values <0.05). CONCLUSIONS This is the first study to show a direct in vivo correlation between synovial tPO(2), inflammation and cell migration, thus it is proposed that hypoxia is a possible primary driver of inflammatory processes in the arthritic joint.
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Macdonald ECA, Gregory ME, Lockington D, Kennedy A, Roberts F, Ramaesh K. Observation of the in vivo movement of host keratocytes into donor tissue following corneal graft; a novel technique. Br J Ophthalmol 2009; 94:790-4. [DOI: 10.1136/bjo.2009.168377] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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