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Hicks O, Green JA, Daunt F, Cunningham EJA, Newell M, Butler A, Burthe SJ. Sublethal effects of natural parasitism act through maternal, but not paternal, reproductive success in a wild population. Ecology 2019; 100:e02772. [PMID: 31165474 PMCID: PMC6851849 DOI: 10.1002/ecy.2772] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/23/2018] [Revised: 04/18/2019] [Accepted: 05/17/2019] [Indexed: 12/15/2022]
Abstract
Parasites are a major component of all animal populations. Males and females often differ in their levels of parasite prevalence, potentially leading to sex differences in the impact of parasitism on fitness, with important implications for the evolution of parasite and host traits including resistance, tolerance, and virulence. However, quantitative measures of the impact of parasitism under free‐living conditions are extremely rare, as they require detailed host demographic data with measures of parasite burden over time. Here, we use endoscopy for direct quantification of natural‐parasite burdens and relate these to reproductive success over 7 yr in a wild population of seabirds. Contrary to predictions, only female burdens were associated with negative impacts of parasitism on breeding success, despite males having significantly higher burdens. Female reproductive success declined by 30% across the range of natural parasite burdens. These effects persisted when accounting for interannual population differences in breeding success. Our results provide quantitative estimates of profound sub‐lethal effects of parasitism on the population. Importantly, they highlight how parasites act unpredictably to shape ecological and evolutionary processes in different components of the same population, with implications for demography and selection on host and parasite traits.
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Simpson W, Kaufman L, Detke M, Lynch C, Butler A, Dominy S. P4-542: UTILITY OF SPEECH-BASED DIGITAL BIOMARKERS FOR EVALUATING DISEASE PROGRESSION IN CLINICAL TRIALS OF ALZHEIMER'S DISEASE. Alzheimers Dement 2019. [DOI: 10.1016/j.jalz.2019.08.089] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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Maura F, Agnelli L, Leongamornlert D, Bolli N, Chan WC, Dodero A, Carniti C, Heavican TB, Pellegrinelli A, Pruneri G, Butler A, Bhosle SG, Chiappella A, Di Rocco A, Zinzani PL, Zaja F, Piva R, Inghirami G, Wang W, Palomero T, Iqbal J, Neri A, Campbell PJ, Corradini P. Integration of transcriptional and mutational data simplifies the stratification of peripheral T-cell lymphoma. Am J Hematol 2019; 94:628-634. [PMID: 30829413 DOI: 10.1002/ajh.25450] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2019] [Accepted: 02/25/2019] [Indexed: 12/21/2022]
Abstract
The histological diagnosis of peripheral T-cell lymphoma (PTCL) can represent a challenge, particularly in the case of closely related entities such as angioimmunoblastic T-lymphoma (AITL), PTCL-not otherwise specified (PTCL-NOS), and ALK-negative anaplastic large-cell lymphoma (ALCL). Although gene expression profiling and next generations sequencing have been proven to define specific features recurrently associated with distinct entities, genomic-based stratifications have not yet led to definitive diagnostic criteria and/or entered into the routine clinical practice. Herein, to improve the current molecular classification between AITL and PTCL-NOS, we analyzed the transcriptional profiles from 503 PTCLs stratified according to their molecular configuration and integrated them with genomic data of recurrently mutated genes (RHOA G17V , TET2, IDH2 R172 , and DNMT3A) in 53 cases (39 AITLs and 14 PTCL-NOSs) included in the series. Our analysis unraveled that the mutational status of RHOA G17V , TET2, and DNMT3A poorly correlated, individually, with peculiar transcriptional fingerprints. Conversely, in IDH2 R172 samples a strong transcriptional signature was identified that could act as a surrogate for mutational status. The integrated analysis of clinical, mutational, and molecular data led to a simplified 19-gene signature that retains high accuracy in differentiating the main nodal PTCL entities. The expression levels of those genes were confirmed in an independent cohort profiled by RNA-sequencing.
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Picco G, Chen ED, Alonso LG, Behan FM, Gonçalves E, Bignell G, Matchan A, Fu B, Banerjee R, Anderson E, Butler A, Benes CH, McDermott U, Dow D, Iorio F, Stronach E, Yang F, Yusa K, Saez-Rodriguez J, Garnett MJ. Functional linkage of gene fusions to cancer cell fitness assessed by pharmacological and CRISPR-Cas9 screening. Nat Commun 2019; 10:2198. [PMID: 31097696 PMCID: PMC6522557 DOI: 10.1038/s41467-019-09940-1] [Citation(s) in RCA: 67] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Accepted: 04/09/2019] [Indexed: 12/21/2022] Open
Abstract
Many gene fusions are reported in tumours and for most their role remains unknown. As fusions are used for diagnostic and prognostic purposes, and are targets for treatment, it is crucial to assess their function in cancer. To systematically investigate the role of fusions in tumour cell fitness, we utilized RNA-sequencing data from 1011 human cancer cell lines to functionally link 8354 fusion events with genomic data, sensitivity to >350 anti-cancer drugs and CRISPR-Cas9 loss-of-fitness effects. Established clinically-relevant fusions were identified. Overall, detection of functional fusions was rare, including those involving cancer driver genes, suggesting that many fusions are dispensable for tumour fitness. Therapeutically actionable fusions involving RAF1, BRD4 and ROS1 were verified in new histologies. In addition, recurrent YAP1-MAML2 fusions were identified as activators of Hippo-pathway signaling in multiple cancer types. Our approach discriminates functional fusions, identifying new drivers of carcinogenesis and fusions that could have clinical implications. Gene fusions are observed in many cancers but their link to tumour fitness is largely unknown. Here, transcriptomic analysis combined with pharmacological and CRISPR-Cas9 screening of cancer cell lines was used to evaluate the functional linkage between fusions and tumour fitness.
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Brinkman AB, Nik-Zainal S, Simmer F, Rodríguez-González FG, Smid M, Alexandrov LB, Butler A, Martin S, Davies H, Glodzik D, Zou X, Ramakrishna M, Staaf J, Ringnér M, Sieuwerts A, Ferrari A, Morganella S, Fleischer T, Kristensen V, Gut M, van de Vijver MJ, Børresen-Dale AL, Richardson AL, Thomas G, Gut IG, Martens JWM, Foekens JA, Stratton MR, Stunnenberg HG. Partially methylated domains are hypervariable in breast cancer and fuel widespread CpG island hypermethylation. Nat Commun 2019; 10:1749. [PMID: 30988298 PMCID: PMC6465362 DOI: 10.1038/s41467-019-09828-0] [Citation(s) in RCA: 32] [Impact Index Per Article: 6.4] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2018] [Accepted: 03/27/2019] [Indexed: 12/21/2022] Open
Abstract
Global loss of DNA methylation and CpG island (CGI) hypermethylation are key epigenomic aberrations in cancer. Global loss manifests itself in partially methylated domains (PMDs) which extend up to megabases. However, the distribution of PMDs within and between tumor types, and their effects on key functional genomic elements including CGIs are poorly defined. We comprehensively show that loss of methylation in PMDs occurs in a large fraction of the genome and represents the prime source of DNA methylation variation. PMDs are hypervariable in methylation level, size and distribution, and display elevated mutation rates. They impose intermediate DNA methylation levels incognizant of functional genomic elements including CGIs, underpinning a CGI methylator phenotype (CIMP). Repression effects on tumor suppressor genes are negligible as they are generally excluded from PMDs. The genomic distribution of PMDs reports tissue-of-origin and may represent tissue-specific silent regions which tolerate instability at the epigenetic, transcriptomic and genetic level.
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Hicks O, Burthe SJ, Daunt F, Newell M, Butler A, Ito M, Sato K, Green JA. The energetic cost of parasitism in a wild population. Proc Biol Sci 2019; 285:rspb.2018.0489. [PMID: 29848646 PMCID: PMC5998108 DOI: 10.1098/rspb.2018.0489] [Citation(s) in RCA: 26] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/05/2018] [Accepted: 05/08/2018] [Indexed: 11/21/2022] Open
Abstract
Parasites have profound fitness effects on their hosts, yet these are often sub-lethal, making them difficult to understand and quantify. A principal sub-lethal mechanism that reduces fitness is parasite-induced increase in energetic costs of specific behaviours, potentially resulting in changes to time and energy budgets. However, quantifying the influence of parasites on these costs has not been undertaken in free-living animals. We used accelerometers to estimate energy expenditure on flying, diving and resting, in relation to a natural gradient of endo-parasite loads in a wild population of European shags Phalacrocorax aristotelis. We found that flight costs were 10% higher in adult females with higher parasite loads and these individuals spent 44% less time flying than females with lower parasite loads. There was no evidence for an effect of parasite load on daily energy expenditure, suggesting the existence of an energy ceiling, with the increase in cost of flight compensated for by a reduction in flight duration. These behaviour specific costs of parasitism will have knock-on effects on reproductive success, if constraints on foraging behaviour detrimentally affect provisioning of young. The findings emphasize the importance of natural parasite loads in shaping the ecology and life-history of their hosts, which can have significant population level consequences.
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Rainess R, Alderman L, Butler A, Cicci T, Yoder M, Pisani B. Evaluation of Outpatient Anticoagulation Bridging after Left Ventricular Assist Device (LVAD) Implantation. J Heart Lung Transplant 2019. [DOI: 10.1016/j.healun.2019.01.771] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022] Open
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Schlaudecker JD, Goodnow K, Goroncy A, Hartmann R, Regan S, Rich M, Butler A, White C. Meaningful Partnerships: Stages of Development of a Patient and Family Advisory Council at a Family Medicine Residency Clinic. J Particip Med 2019; 11:e12105. [PMID: 33055073 PMCID: PMC7434079 DOI: 10.2196/12105] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/04/2018] [Revised: 01/10/2019] [Accepted: 01/20/2019] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Partnering with patients and families is a crucial step in optimizing health. A patient and family advisory council (PFAC) is a group of patients and family members working together collaboratively with providers and staff to improve health care. OBJECTIVE This study aimed to describe the creation of a PFAC within a family medicine residency clinic. To understand the successful development of a PFAC, challenges, potential barriers, and positive outcomes of a meaningful partnership will be reported. METHODS The stages of PFAC development include leadership team formation and initial training, PFAC member recruitment, and meeting launch. Following a description of each stage, outcomes are outlined and lessons learned are discussed. PFAC members completed an open-ended survey and participated in a focus group interview at the completion of the first year. Interviewees provided feedback regarding (1) favorite aspects or experiences, (2) PFAC impact on a family medicine clinic, and (3) future projects to improve care. Common themes will be presented. RESULTS The composition of the PFAC consisted of 18 advisors, including 8 patient and family advisors, 4 staff advisors, 4 resident physician advisors, and 2 faculty physician advisors. The average meeting attendance was 12 members over 11 meetings in the span of the first year. A total of 13 out of 13 (100%) surveyed participants were satisfied with their experience serving on the PFAC. CONCLUSIONS PFACs provide a platform for patient engagement and an opportunity to drive home key concepts around collaboration within a residency training program. A framework for the creation of a PFAC, along with lessons learned, can be utilized to advise other residency programs in developing and evaluating meaningful PFACs.
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Smid M, Wilting SM, Uhr K, Rodríguez-González FG, de Weerd V, Prager-Van der Smissen WJC, van der Vlugt-Daane M, van Galen A, Nik-Zainal S, Butler A, Martin S, Davies HR, Staaf J, van de Vijver MJ, Richardson AL, MacGrogan G, Salgado R, van den Eynden GGGM, Purdie CA, Thompson AM, Caldas C, Span PN, Sweep FCGJ, Simpson PT, Lakhani SR, Van Laere S, Desmedt C, Paradiso A, Eyfjord J, Broeks A, Vincent-Salomon A, Futreal AP, Knappskog S, King T, Viari A, Børresen-Dale AL, Stunnenberg HG, Stratton M, Foekens JA, Sieuwerts AM, Martens JWM. The circular RNome of primary breast cancer. Genome Res 2019; 29:356-366. [PMID: 30692147 PMCID: PMC6396421 DOI: 10.1101/gr.238121.118] [Citation(s) in RCA: 74] [Impact Index Per Article: 14.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2018] [Accepted: 01/23/2019] [Indexed: 11/25/2022]
Abstract
Circular RNAs (circRNAs) are a class of RNAs that is under increasing scrutiny, although their functional roles are debated. We analyzed RNA-seq data of 348 primary breast cancers and developed a method to identify circRNAs that does not rely on unmapped reads or known splice junctions. We identified 95,843 circRNAs, of which 20,441 were found recurrently. Of the circRNAs that match exon boundaries of the same gene, 668 showed a poor or even negative (R < 0.2) correlation with the expression level of the linear gene. In silico analysis showed only a minority (8.5%) of circRNAs could be explained by known splicing events. Both these observations suggest that specific regulatory processes for circRNAs exist. We confirmed the presence of circRNAs of CNOT2, CREBBP, and RERE in an independent pool of primary breast cancers. We identified circRNA profiles associated with subgroups of breast cancers and with biological and clinical features, such as amount of tumor lymphocytic infiltrate and proliferation index. siRNA-mediated knockdown of circCNOT2 was shown to significantly reduce viability of the breast cancer cell lines MCF-7 and BT-474, further underlining the biological relevance of circRNAs. Furthermore, we found that circular, and not linear, CNOT2 levels are predictive for progression-free survival time to aromatase inhibitor (AI) therapy in advanced breast cancer patients, and found that circCNOT2 is detectable in cell-free RNA from plasma. We showed that circRNAs are abundantly present, show characteristics of being specifically regulated, are associated with clinical and biological properties, and thus are relevant in breast cancer.
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Smith J, Godfrey E, Bowden D, Hickman K, Sharkey L, Butler A, Upponi S. Imaging of adult intestinal failure. Clin Radiol 2019; 74:603-612. [PMID: 30654907 DOI: 10.1016/j.crad.2018.12.007] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2018] [Accepted: 12/11/2018] [Indexed: 01/30/2023]
Abstract
Intestinal failure is the inability to maintain adequate nutrition or hydration through the gut. It is caused by a diverse range of benign and malignant aetiologies. Imaging takes a central role in the multidisciplinary assessment of patients with intestinal failure.
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Nik-Zainal S, Davies H, Staaf J, Ramakrishna M, Glodzik D, Zou X, Martincorena I, Alexandrov LB, Martin S, Wedge DC, Van Loo P, Ju YS, Smid M, Brinkman AB, Morganella S, Aure MR, Lingjærde OC, Langerød A, Ringnér M, Ahn SM, Boyault S, Brock JE, Broeks A, Butler A, Desmedt C, Dirix L, Dronov S, Fatima A, Foekens JA, Gerstung M, Hooijer GKJ, Jang SJ, Jones DR, Kim HY, King TA, Krishnamurthy S, Lee HJ, Lee JY, Li Y, McLaren S, Menzies A, Mustonen V, O’Meara S, Pauporté I, Pivot X, Purdie CA, Raine K, Ramakrishnan K, Rodríguez-González FG, Romieu G, Sieuwerts AM, Simpson PT, Shepherd R, Stebbings L, Stefansson OA, Teague J, Tommasi S, Treilleux I, Van den Eynden GG, Vermeulen P, Vincent-Salomon A, Yates L, Caldas C, van’t Veer L, Tutt A, Knappskog S, Tan BKT, Jonkers J, Borg Å, Ueno NT, Sotiriou C, Viari A, Futreal PA, Campbell PJ, Span PN, Van Laere S, Lakhani SR, Eyfjord JE, Thompson AM, Birney E, Stunnenberg HG, van de Vijver MJ, Martens JWM, Børresen-Dale AL, Richardson AL, Kong G, Thomas G, Stratton MR. Author Correction: Landscape of somatic mutations in 560 breast cancer whole-genome sequences. Nature 2019; 566:E1. [DOI: 10.1038/s41586-019-0883-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Leggett G, Butler A, Massey D, Middleton S, Russell N, Woodward J, Green J, Bond D, Duncan S, Woolner L, Sharkey L. A summary of 10 years of transplant activity and outcomes from a UK centre for intestinal and multivisceral transplantation. Clin Nutr 2018. [DOI: 10.1016/j.clnu.2018.06.2063] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Wedge DC, Gundem G, Mitchell T, Woodcock DJ, Martincorena I, Ghori M, Zamora J, Butler A, Whitaker H, Kote-Jarai Z, Alexandrov LB, Van Loo P, Massie CE, Dentro S, Warren AY, Verrill C, Berney DM, Dennis N, Merson S, Hawkins S, Howat W, Lu YJ, Lambert A, Kay J, Kremeyer B, Karaszi K, Luxton H, Camacho N, Marsden L, Edwards S, Matthews L, Bo V, Leongamornlert D, McLaren S, Ng A, Yu Y, Zhang H, Dadaev T, Thomas S, Easton DF, Ahmed M, Bancroft E, Fisher C, Livni N, Nicol D, Tavaré S, Gill P, Greenman C, Khoo V, Van As N, Kumar P, Ogden C, Cahill D, Thompson A, Mayer E, Rowe E, Dudderidge T, Gnanapragasam V, Shah NC, Raine K, Jones D, Menzies A, Stebbings L, Teague J, Hazell S, Corbishley C, de Bono J, Attard G, Isaacs W, Visakorpi T, Fraser M, Boutros PC, Bristow RG, Workman P, Sander C, Hamdy FC, Futreal A, McDermott U, Al-Lazikani B, Lynch AG, Bova GS, Foster CS, Brewer DS, Neal DE, Cooper CS, Eeles RA. Sequencing of prostate cancers identifies new cancer genes, routes of progression and drug targets. Nat Genet 2018; 50:682-692. [PMID: 29662167 PMCID: PMC6372064 DOI: 10.1038/s41588-018-0086-z] [Citation(s) in RCA: 150] [Impact Index Per Article: 25.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/06/2017] [Accepted: 02/22/2018] [Indexed: 12/18/2022]
Abstract
Prostate cancer represents a substantial clinical challenge because it is difficult to predict outcome and advanced disease is often fatal. We sequenced the whole genomes of 112 primary and metastatic prostate cancer samples. From joint analysis of these cancers with those from previous studies (930 cancers in total), we found evidence for 22 previously unidentified putative driver genes harboring coding mutations, as well as evidence for NEAT1 and FOXA1 acting as drivers through noncoding mutations. Through the temporal dissection of aberrations, we identified driver mutations specifically associated with steps in the progression of prostate cancer, establishing, for example, loss of CHD1 and BRCA2 as early events in cancer development of ETS fusion-negative cancers. Computational chemogenomic (canSAR) analysis of prostate cancer mutations identified 11 targets of approved drugs, 7 targets of investigational drugs, and 62 targets of compounds that may be active and should be considered candidates for future clinical trials.
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Kennedy C, Connaughton DM, Murray S, Ormond J, Butler A, Phelan E, Young J, Durack L, Flavin J, O'Grady M, O'Kelly P, Lavin P, Leavey S, Lappin D, Giblin L, Casserly L, Plant WD, Conlon PJ. Home haemodialysis in Ireland. QJM 2018; 111:225-229. [PMID: 29272506 DOI: 10.1093/qjmed/hcx249] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2017] [Indexed: 11/14/2022] Open
Abstract
BACKGROUND Home haemodialysis (HHD) has the potential to impact positively on patient outcomes and health resource management. There has been rejuvenated international interest in HHD in recent years. AIM We aimed to review the activity and outcomes of the Irish HHD Programme since inception (2009-16). DESIGN Retrospective review. METHODS Patient data were collected using the national electronic Renal Patient database (eMEDRenal version 3.2.1) and individual centre records. All data were recorded in a coded fashion on a Microsoft Excel Spread-sheet and analysed with Stata SE software. RESULTS One hundred and one patients completed training and commenced HHD; a further fourty-five patients were assessed for HHD suitability but did not ultimately dialyse at home. Twenty patients switched to nocturnal HHD when this resource became available. The switch from conventional in-centre dialysis to HHD led to an increase in the mean weekly hours on haemodialysis (HD) and a reduction in medication burden for the majority of patients. The overall rate of arteriovenous fistula (AVF) as primary vascular access was 62%. Most HHD complications were related to access function or access-related infection. Over the 7-years, 29 HHD patients were transplanted and 9 patients died. No deaths resulted directly from a HHD complication or technical issue. CONCLUSIONS Patient and technique survival rates compared favourably to published international reports. However, we identified several aspects that require attention. A small number of patients were receiving inadequate dialysis and require targeted education. Ongoing efforts to increase AVF and self-needling rates in HD units must continue. Psychosocial support is critical during the transition between dialysis modalities.
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Woolfson JP, Schreiber R, Butler A, MacFarlane J, Kaczorowski J, Collet J, Bryan S. A335 BILIARY ATRESIA HOME SCREENING PROGRAM IN BRITISH COLUMBIA: EVALUATION OF FIRST TWO YEARS. J Can Assoc Gastroenterol 2018. [DOI: 10.1093/jcag/gwy008.336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Snaith RP, Dove E, Marlowe J, Pemberton S, Price DJ, Rawson S, Wright JF, Butler A, Coughlan AK, Hird M, Trigwell P. Psychosurgery: description and outcome study of a regional service. PSYCHIATRIC BULLETIN 2018. [DOI: 10.1192/pb.21.2.105] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
The report indicates that a psychosurgery service can be established on a regional basis. The outcome study of the Yorkshire Regional Psychosurgery Service indicates that the treatment should retain a place in the treatment of patients who have failed to respond to other available approaches. For such patients (and their carers) life is a state of persisting torment. Some psychiatrists consider psychosurgery as a procedure not to be countenanced, or outmoded, but patients have a right to know what may be achieved by the treatment and at what cost in terms of possible failure to improve and adverse effects. An audit of the Regional Psychosurgery Service indicates a favourable result of the Intervention. All patients improved to some extent, some very remarkably, and no adverse effects were encountered.
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Woolfson J, Schreiber R, Butler A, MacFarlane J, Kaczorowski J, Masucci L, Bryan S, Collet JP. BILIARY ATRESIA HOME SCREENING PROGRAM IN BRITISH COLUMBIA: EVALUATION OF FIRST TWO YEARS. Paediatr Child Health 2017. [DOI: 10.1093/pch/pxx086.088] [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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Hicks O, Burthe S, Daunt F, Butler A, Bishop C, Green JA. Validating accelerometry estimates of energy expenditure across behaviours using heart rate data in a free-living seabird. J Exp Biol 2017; 220:1875-1881. [PMID: 28258086 PMCID: PMC5450806 DOI: 10.1242/jeb.152710] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2016] [Accepted: 02/28/2017] [Indexed: 12/01/2022]
Abstract
Two main techniques have dominated the field of ecological energetics: the heart rate and doubly labelled water methods. Although well established, they are not without their weaknesses, namely expense, intrusiveness and lack of temporal resolution. A new technique has been developed using accelerometers; it uses the overall dynamic body acceleration (ODBA) of an animal as a calibrated proxy for energy expenditure. This method provides high-resolution data without the need for surgery. Significant relationships exist between the rate of oxygen consumption (V̇O2 ) and ODBA in controlled conditions across a number of taxa; however, it is not known whether ODBA represents a robust proxy for energy expenditure consistently in all natural behaviours and there have been specific questions over its validity during diving, in diving endotherms. Here, we simultaneously deployed accelerometers and heart rate loggers in a wild population of European shags (Phalacrocorax aristotelis). Existing calibration relationships were then used to make behaviour-specific estimates of energy expenditure for each of these two techniques. Compared with heart rate-derived estimates, the ODBA method predicts energy expenditure well during flight and diving behaviour, but overestimates the cost of resting behaviour. We then combined these two datasets to generate a new calibration relationship between ODBA and V̇O2 that accounts for this by being informed by heart rate-derived estimates. Across behaviours we found a good relationship between ODBA and V̇O2 Within individual behaviours, we found useable relationships between ODBA and V̇O2 for flight and resting, and a poor relationship during diving. The error associated with these new calibration relationships mostly originates from the previous heart rate calibration rather than the error associated with the ODBA method. The equations provide tools for understanding how energy constrains ecology across the complex behaviour of free-living diving birds.
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Smart SM, Glanville HC, Blanes MDC, Mercado LM, Emmett BA, Jones DL, Cosby BJ, Marrs RH, Butler A, Marshall MR, Reinsch S, Herrero‐Jáuregui C, Hodgson JG. Leaf dry matter content is better at predicting above‐ground net primary production than specific leaf area. Funct Ecol 2017. [DOI: 10.1111/1365-2435.12832] [Citation(s) in RCA: 39] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Alexander P, Prestele R, Verburg PH, Arneth A, Baranzelli C, Batista E Silva F, Brown C, Butler A, Calvin K, Dendoncker N, Doelman JC, Dunford R, Engström K, Eitelberg D, Fujimori S, Harrison PA, Hasegawa T, Havlik P, Holzhauer S, Humpenöder F, Jacobs-Crisioni C, Jain AK, Krisztin T, Kyle P, Lavalle C, Lenton T, Liu J, Meiyappan P, Popp A, Powell T, Sands RD, Schaldach R, Stehfest E, Steinbuks J, Tabeau A, van Meijl H, Wise MA, Rounsevell MDA. Assessing uncertainties in land cover projections. GLOBAL CHANGE BIOLOGY 2017; 23:767-781. [PMID: 27474896 DOI: 10.1111/gcb.13447] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2016] [Revised: 07/21/2016] [Accepted: 07/22/2016] [Indexed: 05/27/2023]
Abstract
Understanding uncertainties in land cover projections is critical to investigating land-based climate mitigation policies, assessing the potential of climate adaptation strategies and quantifying the impacts of land cover change on the climate system. Here, we identify and quantify uncertainties in global and European land cover projections over a diverse range of model types and scenarios, extending the analysis beyond the agro-economic models included in previous comparisons. The results from 75 simulations over 18 models are analysed and show a large range in land cover area projections, with the highest variability occurring in future cropland areas. We demonstrate systematic differences in land cover areas associated with the characteristics of the modelling approach, which is at least as great as the differences attributed to the scenario variations. The results lead us to conclude that a higher degree of uncertainty exists in land use projections than currently included in climate or earth system projections. To account for land use uncertainty, it is recommended to use a diverse set of models and approaches when assessing the potential impacts of land cover change on future climate. Additionally, further work is needed to better understand the assumptions driving land use model results and reveal the causes of uncertainty in more depth, to help reduce model uncertainty and improve the projections of land cover.
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Ambrose T, Sharkey LM, Louis-Auguste J, Rutter CS, Duncan S, English S, Gkrania-Klotsas E, Carmichael A, Woodward JM, Russell N, Massey D, Butler A, Middleton S. Cytomegalovirus Infection and Rates of Antiviral Resistance Following Intestinal and Multivisceral Transplantation. Transplant Proc 2017; 48:492-6. [PMID: 27109985 DOI: 10.1016/j.transproceed.2015.09.070] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2015] [Accepted: 09/03/2015] [Indexed: 12/11/2022]
Abstract
BACKGROUND Cytomegalovirus (CMV) disease is a common and clinically significant complication following intestinal or multivisceral transplantation. CMV disease is more common in cases of serologic mismatch between donor and recipient. Though in some cases it may be asymptomatic, in the immunosuppressed population it often manifests with evidence of systemic infection or end-organ disease. METHODS We conducted a retrospective review of all patients undergoing intestinal or multivisceral transplantation over 8 years at our institution. RESULTS Forty-eight transplantations were performed, with 40% of the patients (19/48) having ≥1 episode of CMV viremia, which rose to 90% in the "donor-positive, recipient-negative" (DPRN) serologic mismatch group. The median time to 1st episode following transplantation was 22.3 weeks (range, 1-78) and median duration of each episode was 4.9 weeks (range, 1.6-37.4). Six of the 19 viremic patients (31.6%) developed virologic resistance with 4 of these occurring in the DPRN group. Four of the 6 patients with drug-resistant CMV died with CMV viremia. All patients with drug resistance acquired ganciclovir resistance; these patients were more challenging to manage with second-line toxicity-limited treatments, including foscarnet, cidofovir, and leflunomide. CMV immunoglobulin has been used and we briefly discuss the use of CMV-specific adoptive T-lymphocyte transfer in the management of 1 case. CONCLUSIONS Post-transplantation CMV disease continues to be challenging to manage, and there is little consensus on optimal management strategies in this patient group, with a significant requirement for novel therapies; these may be pharmacologic or cell based. Extensive multidisciplinary discussion is important for most cases, but particularly for those patients who acquire virologic resistance.
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Furniss G, Opel A, Hussein A, Pearman C, Grace A, Connelly D, Orlowski A, Banerjee A, McNicholas T, Providencia R, Montañes M, Providencia R, Panagopoulos D, Tomlinson D, Dalrymple-Hay M, Haywood G, Butler A, Ang R, Ullah W, Schwartz R, Fannon M, Finlay M, Hunter R, Schilling R, Das M, Asfour I, Morgan M, Ronayne C, Shaw M, Snowdon R, Gupta D, Todd D, King R, Hall M, Modi S, Mediratta N, Gupta D, Reddy V, Neuzil P, Willems S, Verma A, Heck P, Schilling R, Lambiase P, Hall M, Nicholl B, McQueenie R, Jani BD, McKeag N, Gallacher K, Mair F, Heaton D, Macdonald J, Burnell J, Ryan R, Marshall T, Sutton C, O'Callaghan S, Kenny R, Karim N, Srinivasan N, Ferreira M, Goncalves L, Lambiase P, Toledano M, Field E, Walsh H, Maguire K, Cervi E, Kaski J, Perez Tome M, Pantazis A, Elliott P, Lambiase P, Segal O. ORAL ABSTRACTS (3)EP & Ablation31LEFT ATRIAL POSTERIOR WALL ISOLATION (THE “BOX LESION PATTERN”) IN THE TREATMENT OF ATRIAL FIBRILLATION: A SINGLE CENTRE EXPERIENCE32DAY CASE CRYOBLATION (CRYO) FOR PAROXYSMAL ATRIAL FIBRILLATION (pAF) IN THE DISTRICT GENERAL HOSPITAL IS SAFE AND EFFECTIVE IF DONE IN HIGH VOLUME WITH EXPERIENCED OPERATORS33ABLATION INDEX-GUIDED PULMONARY VEIN ISOLATION FOR ATRIAL FIBRILLATION MAY IMPROVE CLINICAL OUTCOMES IN COMPARISON TO CONTACT FORCE-GUIDED ABLATION34THE PROCEDURAL COMPLICATION RATES AND SHORT-TERM SUCCESS RATES OF THORACOSCOPIC AF ABLATION DURING THE INSTITUTIONAL LEARNING CURVE35INITIAL PROCEDURAL RESULTS FROM DDRAMATIC-SVT STUDY: DD MECHANISM IDENTIFICATION AND LOCALISATION USING DIPOLE DENSITY MAPPING TO GUIDE ABLATION STRATEGY36MORBIDITY AND MORTALITY IN MIDDLE-AGED INDIVIDUALS WITH ATRIAL FIBRILLATION: UK BIOBANK DATAClinical EP37THE GM AHSN AF LANDSCAPE TOOL: A SHARED PUBLIC DATA PLATFORM TO PROMOTE QUALITY IMPROVEMENTS AND IDENTIFY OPPORTUNITIES TO PREVENT AF-RELATED STROKE IN THE DEVOLVED GREATER MANCHESTER HEALTH SYSTEM38REAL WORLD PERSISTENCE, ADHERENCE AND SWITCH-OVER ACROSS ANTICOAGULANTS IN ATRIAL FIBRILLATION-A NATIONAL POPULATION-BASED STUDY39ORTHOSTATIC HYPOTENSION AND ATRIAL FIBRILLATION40PREVALENCE OF SHORT QT AND CRITERIA OF SEVERITY IN A YOUNG ASYMPTOMATIC COHORT41SURFACE ELECTROCARDIOGRAPHIC FEATURES AND PREVALENCE OF ARRHYTHMIAS IN PAEDIATRIC FRIEDREICH'S ATAXIA42RISK STRATIFICATION OF TYPE 1 MYOTONIC DYSTROPHY: IS THE ECG ACCURATE ENOUGH TO SELECT PATIENTS AT RISK OF BRADYARRHYTHMIC EVENTS? Europace 2016. [DOI: 10.1093/europace/euw272] [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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Smid M, Rodríguez-González FG, Sieuwerts AM, Salgado R, Prager-Van der Smissen WJC, Vlugt-Daane MVD, van Galen A, Nik-Zainal S, Staaf J, Brinkman AB, van de Vijver MJ, Richardson AL, Fatima A, Berentsen K, Butler A, Martin S, Davies HR, Debets R, Gelder MEMV, van Deurzen CHM, MacGrogan G, Van den Eynden GGGM, Purdie C, Thompson AM, Caldas C, Span PN, Simpson PT, Lakhani SR, Van Laere S, Desmedt C, Ringnér M, Tommasi S, Eyford J, Broeks A, Vincent-Salomon A, Futreal PA, Knappskog S, King T, Thomas G, Viari A, Langerød A, Børresen-Dale AL, Birney E, Stunnenberg HG, Stratton M, Foekens JA, Martens JWM. Breast cancer genome and transcriptome integration implicates specific mutational signatures with immune cell infiltration. Nat Commun 2016; 7:12910. [PMID: 27666519 PMCID: PMC5052682 DOI: 10.1038/ncomms12910] [Citation(s) in RCA: 84] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Accepted: 08/15/2016] [Indexed: 12/20/2022] Open
Abstract
A recent comprehensive whole genome analysis of a large breast cancer cohort was used to link known and novel drivers and substitution signatures to the transcriptome of 266 cases. Here, we validate that subtype-specific aberrations show concordant expression changes for, for example, TP53, PIK3CA, PTEN, CCND1 and CDH1. We find that CCND3 expression levels do not correlate with amplification, while increased GATA3 expression in mutant GATA3 cancers suggests GATA3 is an oncogene. In luminal cases the total number of substitutions, irrespective of type, associates with cell cycle gene expression and adverse outcome, whereas the number of mutations of signatures 3 and 13 associates with immune-response specific gene expression, increased numbers of tumour-infiltrating lymphocytes and better outcome. Thus, while earlier reports imply that the sheer number of somatic aberrations could trigger an immune-response, our data suggests that substitutions of a particular type are more effective in doing so than others.
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Brewer MJ, Butler A, Cooksley SL. The relative performance of AIC, AICC
and BIC in the presence of unobserved heterogeneity. Methods Ecol Evol 2016. [DOI: 10.1111/2041-210x.12541] [Citation(s) in RCA: 139] [Impact Index Per Article: 17.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Nik-Zainal S, Davies H, Staaf J, Ramakrishna M, Glodzik D, Zou X, Martincorena I, Alexandrov LB, Martin S, Wedge DC, Van Loo P, Ju YS, Smid M, Brinkman AB, Morganella S, Aure MR, Lingjærde OC, Langerød A, Ringnér M, Ahn SM, Boyault S, Brock JE, Broeks A, Butler A, Desmedt C, Dirix L, Dronov S, Fatima A, Foekens JA, Gerstung M, Hooijer GKJ, Jang SJ, Jones DR, Kim HY, King TA, Krishnamurthy S, Lee HJ, Lee JY, Li Y, McLaren S, Menzies A, Mustonen V, O’Meara S, Pauporté I, Pivot X, Purdie CA, Raine K, Ramakrishnan K, Rodríguez-González FG, Romieu G, Sieuwerts AM, Simpson PT, Shepherd R, Stebbings L, Stefansson OA, Teague J, Tommasi S, Treilleux I, Van den Eynden GG, Vermeulen P, Vincent-Salomon A, Yates L, Caldas C, van’t Veer L, Tutt A, Knappskog S, Tan BKT, Jonkers J, Borg Å, Ueno NT, Sotiriou C, Viari A, Futreal PA, Campbell PJ, Span PN, Van Laere S, Lakhani SR, Eyfjord JE, Thompson AM, Birney E, Stunnenberg HG, van de Vijver MJ, Martens JW, Børresen-Dale AL, Richardson AL, Kong G, Thomas G, Stratton MR. Landscape of somatic mutations in 560 breast cancer whole-genome sequences. Nature 2016; 534:47-54. [PMID: 27135926 PMCID: PMC4910866 DOI: 10.1038/nature17676] [Citation(s) in RCA: 1446] [Impact Index Per Article: 180.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/29/2015] [Accepted: 03/17/2016] [Indexed: 02/06/2023]
Abstract
We analysed whole-genome sequences of 560 breast cancers to advance understanding of the driver mutations conferring clonal advantage and the mutational processes generating somatic mutations. We found that 93 protein-coding cancer genes carried probable driver mutations. Some non-coding regions exhibited high mutation frequencies, but most have distinctive structural features probably causing elevated mutation rates and do not contain driver mutations. Mutational signature analysis was extended to genome rearrangements and revealed twelve base substitution and six rearrangement signatures. Three rearrangement signatures, characterized by tandem duplications or deletions, appear associated with defective homologous-recombination-based DNA repair: one with deficient BRCA1 function, another with deficient BRCA1 or BRCA2 function, the cause of the third is unknown. This analysis of all classes of somatic mutation across exons, introns and intergenic regions highlights the repertoire of cancer genes and mutational processes operating, and progresses towards a comprehensive account of the somatic genetic basis of breast cancer.
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