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Lucas RJ, Allen AE, Brainard GC, Brown TM, Dauchy RT, Didikoglu A, Do MTH, Gaskill BN, Hattar S, Hawkins P, Hut RA, McDowell RJ, Nelson RJ, Prins JB, Schmidt TM, Takahashi JS, Verma V, Voikar V, Wells S, Peirson SN. Recommendations for measuring and standardizing light for laboratory mammals to improve welfare and reproducibility in animal research. PLoS Biol 2024; 22:e3002535. [PMID: 38470868 DOI: 10.1371/journal.pbio.3002535] [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: 03/14/2024] Open
Abstract
Light enables vision and exerts widespread effects on physiology and behavior, including regulating circadian rhythms, sleep, hormone synthesis, affective state, and cognitive processes. Appropriate lighting in animal facilities may support welfare and ensure that animals enter experiments in an appropriate physiological and behavioral state. Furthermore, proper consideration of light during experimentation is important both when it is explicitly employed as an independent variable and as a general feature of the environment. This Consensus View discusses metrics to use for the quantification of light appropriate for nonhuman mammals and their application to improve animal welfare and the quality of animal research. It provides methods for measuring these metrics, practical guidance for their implementation in husbandry and experimentation, and quantitative guidance on appropriate light exposure for laboratory mammals. The guidance provided has the potential to improve data quality and contribute to reduction and refinement, helping to ensure more ethical animal use.
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Affiliation(s)
- Robert J Lucas
- Centre for Biological Timing, School of Biological Sciences, Faculty of Biology Medicine and Health, University of Manchester, Manchester, United Kingdom
| | - Annette E Allen
- Centre for Biological Timing, School of Biological Sciences, Faculty of Biology Medicine and Health, University of Manchester, Manchester, United Kingdom
| | - George C Brainard
- Department of Neurology, Thomas Jefferson University, Philadelphia, Pennsylvania, United States of America
| | - Timothy M Brown
- Centre for Biological Timing, School of Biological Sciences, Faculty of Biology Medicine and Health, University of Manchester, Manchester, United Kingdom
| | - Robert T Dauchy
- Department of Structural and Cellular Biology, Tulane University School of Medicine, Tulane, Louisiana, United States of America
| | - Altug Didikoglu
- Department of Neuroscience, Izmir Institute of Technology, Gülbahçe, Urla, Izmir, Turkey
| | - Michael Tri H Do
- F.M. Kirby Neurobiology Center and Department of Neurology, Boston Children's Hospital and Harvard Medical School, Center for Life Science, Boston, Massachusetts, United States of America
| | - Brianna N Gaskill
- Novartis Institute for Biomedical Research, Cambridge, Massachusetts, United States of America
| | - Samer Hattar
- Section on Light and Circadian Rhythms (SLCR), National Institute of Mental Health, John Edward Porter Neuroscience Research Center, Bethesda, Maryland, United States of America
| | | | - Roelof A Hut
- Chronobiology Unit, Groningen Institute of Evolutionary Life Sciences, University of Groningen, Groningen, the Netherlands
| | - Richard J McDowell
- Centre for Biological Timing, School of Biological Sciences, Faculty of Biology Medicine and Health, University of Manchester, Manchester, United Kingdom
| | - Randy J Nelson
- Department of Neuroscience, Rockefeller Neuroscience Institute, West Virginia University, Morgantown, West Virginia, United States of America
| | - Jan-Bas Prins
- The Francis Crick Institute, London, United Kingdom
- Leiden University Medical Centre, Leiden, the Netherlands
| | - Tiffany M Schmidt
- Department of Neurobiology, Northwestern University, Evanston, Illinois, United States of America
| | - Joseph S Takahashi
- Department of Neuroscience, Peter O'Donnell Jr Brain Institute, University of Texas Southwestern Medical Center, Dallas, Texas, United States of America
- Howard Hughes Medical Institute, University of Texas Southwestern Medical Center, Dallas, Texas, United States of America
| | - Vandana Verma
- NASA Ames Research Center, Space Biosciences Division, Moffett Field, California, United States of America
| | - Vootele Voikar
- Laboratory Animal Center and Neuroscience Center, HiLIFE, University of Helsinki, Helsinki, Finland
| | - Sara Wells
- The Mary Lyon Centre, MRC Harwell, Harwell Campus, Oxfordshire, United Kingdom
| | - Stuart N Peirson
- Sleep and Circadian Neuroscience Institute (SCNi), Kavli Institute for Nanoscience Discovery, Nuffield Department of Clinical Neurosciences, University of Oxford, Oxford, United Kingdom
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Abelson KSP, Chambers C, De La Cueva T, Fisher G, Hawkins P, Ntafis V, Pohlig PF, Rooymans TP, Santos AI. Harmonisation of education, training and continuing professional development for laboratory animal caretakers, technicians and technologists: Report of the FELASA-EFAT Working Group. Lab Anim 2023; 57:599-610. [PMID: 37334769 PMCID: PMC10693723 DOI: 10.1177/00236772231175550] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/28/2023] [Accepted: 04/22/2023] [Indexed: 06/20/2023]
Abstract
Competent, confident and caring laboratory animal caretakers, technicians and technologists (LAS staff) are vital for good animal welfare, high-quality science and a secure Culture of Care. This requires high-quality education, training, supervision and continuing professional development (CPD) of LAS staff. However, there is a lack of harmonisation regarding how this education and training is conducted among European countries, and nor are there recommendations adapted to Directive 2010/63/EU. Therefore, FELASA and EFAT established a working group with the task of establishing recommendations for education, training and CPD for LAS staff. The working group established five different levels (LAS staff levels 0-4), defining the required level of competence and attitude, as well as suggesting educational requirements for reaching each level. Defining these levels should help to ensure that appropriate educational and CPD activities are in place, and to enable employers and LAS staff to determine the level and career stage attained. Furthermore, proper assessment of competencies and effective CPD schemes for all relevant staff should be established. Regulators should support this by setting standards for competence assessment and ensuring that they are consistently applied. In addition, establishments should involve the LAS staff in defining and developing the Culture of Care. The Animal Welfare Body should be involved and have oversight of education, training and CPD. These recommendations will contribute to harmonisation and increased quality of education, training and CPD, as well as provide clearer career pathways for LAS staff, helping to ensure high standards of animal welfare and science.
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Affiliation(s)
- Klas SP Abelson
- Department of Experimental Medicine, University of Copenhagen, Denmark
| | | | | | - Glyn Fisher
- European Federation of Animal Technologists, UK
| | | | - Vasileios Ntafis
- Institute of Fundamental Biomedical Research, Biomedical Sciences Research Centre ‘Alexander Fleming’, Greece
| | - Paul F Pohlig
- Cluster of Excellence Cellular Stress Responses in Aging-Associated Diseases (CECAD), Faculty of Medicine and University Hospital Cologne, University of Cologne, Germany
- In Vivo Research Facility, Faculty of Medicine and University Hospital Cologne, University of Cologne, Germany
| | - T Pim Rooymans
- Veterinary Medicine, Utrecht University, The Netherlands
| | - Ana I Santos
- NOVA Medical School, NOVA University Lisbon, Portugal
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Patel R, Ioannou A, Razvi Y, Chacko L, Venneri L, Martinez-Naharro A, Masi A, Lachmann H, Wechalekar A, Petrie A, Whelan C, Hawkins P, Gillmore J, Fontana M. Size matters - redefining sex differences among patients with transthyretin amyloid cardiomyopathy – have we been wrong all along? Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1760] [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
Background
Transthyretin amyloid cardiomyopathy (ATTR-CM) is most often diagnosed in men (1–5). The few available studies suggest affected women have a more favourable cardiac phenotype (5–8), but remain unclear regarding differences in outcomes.
Objectives and methods
To characterise sex differences among consecutive patients with non-hereditary and two prevalent forms of hereditary ATTR-CM diagnosed over a 20-year period at our specialist centre through analysis of deep phenotyping at presentation, changes on serial echocardiography and overall prognosis.
Results
In total, 1732 patients were studied, comprising: 1095 with wild-type (wt)ATTR-CM; 206 with T60A-hATTR-CM; and 431 with V122I-hATTR-CM. Female prevalence was greater in T60A-hATTR-CM (29.6%) and V122I-hATTR-CM (27.8%) compared to wtATTR-CM (6%). At presentation, females were 3.3 years older than males (81.9 vs 77.8 years for wtATTR-CM; 68.7 vs 65.1 years for T60A-hATTR-CM; 77.1 vs 74.9 years for V122I-hATTR-CM). At diagnosis, non-indexed measures of wall thickness were significantly greater in males (interventricular septum in diastole (IVSd) of 17.13mm in males & 16.15mm in females; p<0.001). When indexed for body surface area (BSA), we observed that the mean indexed IVSd was fairly constant in males throughout the study period, but in females, had a tendency to decrease over the same study period. Furthermore, BSA significantly influenced measures of disease severity. When indexed for BSA, overall structural and functional phenotype was similar between sexes; the few observed significant differences including indexed IVSd (9.62mm/m2 in females & 8.88mm/m2 in males; p<0.001), indexed left ventricular (LV) end-diastolic volume (35.07ml/m2 in females & 41.05ml/m2 in males; p<0.001) and indexed LV end-systolic volume (17.95ml/m2 in females & 21.74ml/m2 in males; p<0.001) suggested a mildly worse phenotype in females. No significant differences were observed in disease progression on serial echocardiography and mortality across the overall population (p=0.459) and when divided by genotype (p=0.730 for wtATTR-CM; p=0.161 for T60A-hATTR-CM; p=0.056 for V122I-hATTR-CM).
Conclusion
This study of a well-characterized large cohort of ATTR-CM patients, contrary to previous dogmas, did not demonstrate overall differences between sexes in either clinical phenotype, when indexed, or with respect to disease progression and prognosis. The analysis highlighted the deficiencies in using non-indexed values which can not only lead to the inaccurate perception of a milder clinical phenotype in women compared to men, but has been shown to result in female patients presenting at an older age and with a worse phenotype compared to men. These findings indicate the need for revision of existing clinical guidelines regarding awareness and diagnosis of ATTR-CM in women, and modification of clinical trials which currently use single non-indexed threshold for wall thickness as key inclusion criterion.
Funding Acknowledgement
Type of funding sources: Foundation.
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Affiliation(s)
- R Patel
- Royal Free Hospital , London , United Kingdom
| | - A Ioannou
- Royal Free Hospital , London , United Kingdom
| | - Y Razvi
- Royal Free Hospital , London , United Kingdom
| | - L Chacko
- Royal Free Hospital , London , United Kingdom
| | - L Venneri
- Royal Free Hospital , London , United Kingdom
| | | | - A Masi
- Royal Free Hospital , London , United Kingdom
| | - H Lachmann
- Royal Free Hospital , London , United Kingdom
| | | | - A Petrie
- University College London, Eastman Dental Institute , London , United Kingdom
| | - C Whelan
- Royal Free Hospital , London , United Kingdom
| | - P Hawkins
- Royal Free Hospital , London , United Kingdom
| | - J Gillmore
- Royal Free Hospital , London , United Kingdom
| | - M Fontana
- Royal Free Hospital , London , United Kingdom
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Razvi Y, Patel R, Ioannou A, Rauf MU, Masi A, Porcari A, Blakeney I, Kaza N, Lachmann H, Whelan C, Venneri L, Martinez-Naharro A, Hawkins P, Fontana M, Gillmore JD. Cardiac transplantation in transthyretin amyloid cardiomyopathy: outcomes from three decades of tertiary centre experience. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.1784] [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
Transthyretin cardiac amyloidosis (ATTR-CM) is a progressive and fatal cardiomyopathy. Treatment options in patients with advanced heart failure are limited to cardiac transplantation (CT). Despite small case series demonstrating comparable outcomes with CT between patients with ATTR-CM and non-amyloid cardiomyopathies, ATTR-CM is considered to be an absolute contraindication to CT in some centres. This is in part due to a perceived risk of amyloid recurrence in the cardiac allograft. We report outcomes of patients with ATTR-CM assessed at our centre whom underwent CT over the past thirty years.
Methods
We retrospectively evaluated all ATTR-CM patients assessed at the UK National Amyloidosis Centre between 1990 and 2020 who underwent CT. Pre-transplantation disease and patient characteristics were determined and outcomes were compared with our large cohort of non-transplanted ATTR-CM patients. Censor date was 11th January 2022.
Results
Eleven (9 male, 2 female) patients with ATTR-CM underwent CT including 8 with wild-type ATTR-CM and 3 with variant ATTR-CM (ATTRv). Median age at CT was 60.3 years and median follow up post-CT was 65.7 months. Median (range) NT-proBNP concentration pre-transplant was 4478ng/L (1057–8778ng/L), median (range) left ventricular ejection fraction (LVEF) was 39% (27–56%) and mean (IQR) interventricular septal (IVSD) was 18 mm (15.9–20.1 mm). 8 patients were NYHA functional class III, the 3 remaining patients were class II.
One, three, and five-year survival was 100%, 89% and 86%, respectively and the longest surviving patient was censored >19 years post CT. Survival is at least comparable to UK and US CT outcome registry data for all non-amyloid patients undergoing CT. No patients had recurrence of amyloid in the cardiac allograft as assessed by endomyocardial biopsy and/or Tc-DPD scintigraphy. Two patients were commenced on Patisiran for amyloid polyneuropathy at 211 and 5 months post-CT. Graft rejection requiring treatment was observed in 2 patients, and successfully treated with intravenous steroids. Renal impairment was common, with 6 patients being left with chronic kidney disease.
Three patients died, including one with ATTRv-CM from complications of leptomeningeal amyloidosis. Survival among the cohort of patients who underwent CT was significantly longer than UK patients with ATTR-CM generally (P≤0.006), regardless of NAC ATTR disease stage and including those diagnosed under 65 years of age (P=0.028). (Figure 1) All surviving patients were NYHA functional class I at time of censor.
Conclusion
Our data indicates that cardiac transplantation is well tolerated, restores functional capacity, and prolongs survival in ATTR-CM with little risk of recurrence of amyloid in the cardiac allograft. We believe that our data argues strongly for ATTR-CM to be routinely included in the list of indications for cardiac transplantation.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- Y Razvi
- University College London , London , United Kingdom
| | - R Patel
- University College London , London , United Kingdom
| | - A Ioannou
- University College London , London , United Kingdom
| | - M U Rauf
- University College London , London , United Kingdom
| | - A Masi
- University College London , London , United Kingdom
| | - A Porcari
- University College London , London , United Kingdom
| | - I Blakeney
- University College London , London , United Kingdom
| | - N Kaza
- Imperial College London , London , United Kingdom
| | - H Lachmann
- University College London , London , United Kingdom
| | - C Whelan
- University College London , London , United Kingdom
| | - L Venneri
- University College London , London , United Kingdom
| | | | - P Hawkins
- University College London , London , United Kingdom
| | - M Fontana
- University College London , London , United Kingdom
| | - J D Gillmore
- University College London , London , United Kingdom
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Patel R, Martinez-Naharro A, Kotecha T, Karia N, Ioannou A, Petrie A, Chacko L, Razvi Y, Lachmann H, Venneri L, Kellman P, Gillmore J, Hawkins P, Wechalekar A, Fontana M. Progression, regression and redefining the treatment response – cardiac magnetic resonance with T1 and extracellular volume mapping in cardiac light-chain amyloidosis. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.297] [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
The presence and severity of cardiac involvement in AL amyloidosis is the main driver of prognosis [1]; patients with symptomatic heart failure frequently die within 6 months [1] but median survival has nearly doubled over the past decade, mainly due to significant improvements in chemotherapy. The haematological response to chemotherapy is principally evaluated with serial measurements of serum-free light-chains (FLC) [2]. The cardiac response to chemotherapy is assessed through changes in serum concentrations of brain natriuretic peptides (including NT-proBNP) and echocardiographic parameters [3–5]. Neither are able to directly measure cardiac amyloid burden. Cardiovascular magnetic resonance (CMR) with extra-cellular volume (ECV) mapping can measure the extent cardiac amyloid infiltration [6].
Aims
We investigated the ability of CMR to: 1) measure changes in response to chemotherapy; 2) assess the correlation between haematological response (HMR) and changes in cardiac amyloid; 3) assess the association between changes in cardiac amyloid and prognosis over and above existing predictors.
Methods
In total, 176 patients with cardiac light-chain amyloidosis treated with chemotherapy were assessed with FLC, NT-proBNP and CMR with ECV mapping at baseline (before chemotherapy), 6-months, 12-months & 24-months after commencing chemotherapy. Haematological response was categorized by reductions in FLC as: complete response (CR), very good partial response (VGPR), partial response (PR) or no response (NR). CMR response was categorized by changes in ECV as: progression (≥0.05 increase), stable (<0.05 change) or regression (≥0.05 decrease).
Results
A progressive increase in patients achieving either CR or VGPR was observed at each time point (61% of patients at 6-months, 71% at 12-months and 80% at 24-months). At 6-months, CMR regression was observed in 3% (all had either CR or VGPR) and progression in 32% (61% had either PR or NR; 39% had either CR or VGPR). At 1-year, CMR regression was observed in 22% (all had either CR or VGPR); progression in 22% (63% had either PR or NR; 37% had either CR or VGPR). At 2-years, CMR regression was observed in 38% (all had CR/VGPR); progression in 14% (80% had either PR or NR; 20% had either CR or VGPR). During follow-up (40±15 months), 36 (25%) patients died. CMR response at 6-months predicted death (progression HR 3.821; 95% CI 1.950–7.487; p<0.001) and remained independently associated with prognosis after adjusting for haematological response, NT-proBNP and longitudinal strain on echocardiography (p<0.01).
Conclusions
CMR demonstrates that cardiac amyloid deposits frequently regress following chemotherapy, but only in patients who achieve CR or VGPR, highlighting the need for deep haematological response. Changes in amyloid burden (ECV) predict outcomes after adjusting for known predictors, showing the crucial role of CMR in redefining treatment response.
Funding Acknowledgement
Type of funding sources: Foundation.
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Affiliation(s)
- R Patel
- Royal Free Hospital , London , United Kingdom
| | | | - T Kotecha
- Royal Free Hospital , London , United Kingdom
| | - N Karia
- Royal Free Hospital , London , United Kingdom
| | - A Ioannou
- Royal Free Hospital , London , United Kingdom
| | - A Petrie
- University College London, Eastman Dental Institute , London , United Kingdom
| | - L Chacko
- Royal Free Hospital , London , United Kingdom
| | - Y Razvi
- Royal Free Hospital , London , United Kingdom
| | - H Lachmann
- Royal Free Hospital , London , United Kingdom
| | - L Venneri
- Royal Free Hospital , London , United Kingdom
| | - P Kellman
- National Heart Lung and Blood Institute, National Institutes of Health , Bethesda , United States of America
| | - J Gillmore
- Royal Free Hospital , London , United Kingdom
| | - P Hawkins
- Royal Free Hospital , London , United Kingdom
| | | | - M Fontana
- Royal Free Hospital , London , United Kingdom
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Katsiadaki I, Ellis T, Andersen L, Antczak P, Blaker E, Burden N, Fisher T, Green C, Labram B, Pearson A, Petersen K, Pickford D, Ramsden C, Rønneseth A, Ryder K, Sacker D, Stevens C, Watanabe H, Yamamoto H, Sewell F, Hawkins P, Rufli H, Handy RD, Maynard SK, Jacobs MN. Dying for change: A roadmap to refine the fish acute toxicity test after 40 years of applying a lethal endpoint. Ecotoxicol Environ Saf 2021; 223:112585. [PMID: 34365212 DOI: 10.1016/j.ecoenv.2021.112585] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/24/2021] [Revised: 07/27/2021] [Accepted: 07/29/2021] [Indexed: 06/13/2023]
Abstract
The fish acute toxicity test (TG203; OECD, 2019) is frequently used and highly embedded in hazard and risk assessment globally. The test estimates the concentration of a chemical that kills 50% of the fish (LC50) over a 96 h exposure and is considered one of the most severe scientific procedures undertaken. Over the years, discussions at the Organisation for Economic Co-operation and Development (OECD) have resulted in changes to the test which reduce the number of fish used, as well as the development of a (potential) replacement test (TG236, OECD, 2013). However, refinement of the mortality endpoint with an earlier (moribundity) endpoint was not considered feasible during the Test Guideline's (TG) last update in 2019. Several stakeholders met at a UK-based workshop to discuss how TG203 can be refined, and identified two key opportunities to reduce fish suffering: (1) application of clinical signs that predict mortality and (2) shortening the test duration. However, several aspects need to be addressed before these refinements can be adopted. TG203 has required recording of major categories of sublethal clinical signs since its conception, with the option to record more detailed signs introduced in the 2019 update. However, in the absence of guidance, differences in identification, recording and reporting of clinical signs between technicians and laboratories is likely to have generated piecemeal data of varying quality. Harmonisation of reporting templates, and training in clinical sign recognition and recording are needed to standardise clinical sign data. This is critical to enable robust data-driven detection of clinical signs that predict mortality. Discussions suggested that the 96 h duration of TG203 cannot stand up to scientific scrutiny. Feedback and data from UK contract research organisations (CROs) conducting the test were that a substantial proportion of mortalities occur in the first 24 h. Refinement of TG203 by shortening the test duration would reduce suffering (and test failure rate) but requires a mechanism to correct new results to previous 96 h LC50 data. The actions needed to implement both refinement opportunities are summarised here within a roadmap. A shift in regulatory assessment, where the 96 h LC50 is a familiar base for decisions, will also be critical.
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Affiliation(s)
- Ioanna Katsiadaki
- Centre for Environment, Fisheries and Aquaculture Science (Cefas), Weymouth Laboratory, Barrack road, Dorset DT4 8UB, UK.
| | - Tim Ellis
- Centre for Environment, Fisheries and Aquaculture Science (Cefas), Weymouth Laboratory, Barrack road, Dorset DT4 8UB, UK
| | | | - Philipp Antczak
- Institute of Integrative Biology, Biology, Biosciences Building, University of Liverpool, Crown Street, Liverpool L69 7ZB, UK; Center for Molecular Medicine Cologne, University Hospital Cologne, 50931 Cologne, Germany
| | - Ellen Blaker
- Centre for Environment, Fisheries and Aquaculture Science (Cefas), Weymouth Laboratory, Barrack road, Dorset DT4 8UB, UK
| | - Natalie Burden
- NC3Rs, Gibbs Building, 215 Euston Road, London NW1 2BE, UK
| | - Tom Fisher
- Chemical Regulation Division, Mallard House, 3 Peasholme Green, York YO1 7PX, UK
| | | | | | - Audrey Pearson
- Environment Agency, Chemical Assessment Unit, Red Kite House, Howbery Park, Wallingford, Oxfordshire OX10 8BD, UK
| | | | - Dan Pickford
- Syngenta Ltd, Jealott's Hill International Research Station, Bracknell RG42 6EY, UK
| | - Chris Ramsden
- AgroChemex Environmental, Aldhams Research Farm, Dead Lane, Lawford, Manningtree, Essex CO11 2NF, UK
| | - Anita Rønneseth
- Department of Biological Sciences, University of Bergen, P.O. Box 7803, N-5006 Bergen, Norway
| | - Kathy Ryder
- Northern Ireland Animals (Scientific Procedures) Act (ASPA) Inspectorate, Room C4.3, Castle Buildings, Stormont Estate, Belfast BT4 3SQ, UK
| | - Dominic Sacker
- Covance CRS Research Limited, Shardlow Business Park, London Road, Shardlow DE72 2GD, UK
| | | | - Haruna Watanabe
- National Institute for Environmental Studies (NIES), 16-2 Onogawa, Tsukuba-City, Ibaraki 305-8506 Japan
| | | | | | - Penny Hawkins
- Animals in Science Department, Royal Society for the Prevention of Cruelty to Animals, Wilberforce Way, Southwater, Horsham, West Sussex RH13 9RS, UK
| | - Hans Rufli
- ecotoxsolutions, Unterer Rheinweg 114, CH-4057 Basel, Switzerland
| | - Richard D Handy
- School of Biological and Marine Sciences, University of Plymouth, Plymouth, Devon PL4 8AA, UK
| | - Samuel K Maynard
- AstraZeneca, Global Sustainability, Eastbrook House, Shaftesbury Road, Cambridge CB2 8DU, UK
| | - Miriam N Jacobs
- Department of Toxicology, Centre for Radiation, Chemical and Environmental, Hazards Public Health England, Chilton, Oxfordshire OX11 0RQ, UK
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Stevens CH, Reed BT, Hawkins P. Enrichment for Laboratory Zebrafish-A Review of the Evidence and the Challenges. Animals (Basel) 2021; 11:ani11030698. [PMID: 33807683 PMCID: PMC8001412 DOI: 10.3390/ani11030698] [Citation(s) in RCA: 31] [Impact Index Per Article: 10.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2021] [Revised: 03/03/2021] [Accepted: 03/04/2021] [Indexed: 12/15/2022] Open
Abstract
Simple Summary The zebrafish is one of the most commonly used animals in scientific research, but there remains a lack of consensus over good practice for zebrafish housing and care. One such area which lacks agreement is whether laboratory zebrafish should be provided with environmental enrichment—additions or modifications to the basic laboratory environment which aim to improve welfare, such as plastic plants in tanks. The need for the provision of appropriate environmental enrichment has been recognised in other laboratory animal species, but some scientists and animal care staff are hesitant to provide enrichment for zebrafish, arguing that there is little or no evidence that enrichment can benefit zebrafish welfare. This review aims to summarise the current literature on the effects of enrichment on zebrafish physiology, behaviour and welfare, and identifies some forms of enrichment which are likely to benefit zebrafish. It also considers the possible challenges that might be associated with introducing more enrichment, and how these might be addressed. Abstract Good practice for the housing and care of laboratory zebrafish Danio rerio is an increasingly discussed topic, with focus on appropriate water quality parameters, stocking densities, feeding regimes, anaesthesia and analgesia practices, methods of humane killing, and more. One area of current attention is around the provision of environmental enrichment. Enrichment is accepted as an essential requirement for meeting the behavioural needs and improving the welfare of many laboratory animal species, but in general, provision for zebrafish is minimal. Some of those involved in the care and use of zebrafish suggest there is a ‘lack of evidence’ that enrichment has welfare benefits for this species, or cite a belief that zebrafish do not ‘need’ enrichment. Concerns are also sometimes raised around the practical challenges of providing enrichments, or that they may impact on the science being undertaken. However, there is a growing body of evidence suggesting that various forms of enrichment are preferred by zebrafish over a barren tank, and that enriched conditions can improve welfare by reducing stress and anxiety. This review explores the effects that enrichment can have on zebrafish behaviour, physiology and welfare, and considers the challenges to facilities of providing more enrichment for the zebrafish they house.
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Bandera F, Martone R, Chacko L, Ganesananthan S, Gilbertson JA, Ponticos M, Petrie A, Cappelli F, Guazzi M, Potena L, Rapezzi C, Leone O, Hawkins P, Gillmore JD, Fontana M. Clinical importance of left atrial infiltration in cardiac transthyretin amyloidosis. Eur Heart J Cardiovasc Imaging 2021. [DOI: 10.1093/ehjci/jeaa356.176] [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: 11/14/2022] Open
Abstract
Abstract
Funding Acknowledgements
Type of funding sources: None.
INTRODUCTION
The clinical significance of left atrial (LA) involvement in ATTR amyloidosis cardiomyopathy (ATTR-CM) has not been characterized. The aims of this study were to characterize: (1)LA pathology in explanted ATTR-CM hearts; (2)LA mechanics using echocardiographic speckle-tracking in a large cohort of ATTR-CM patients; (3)to study the association with mortality.
METHODS AND RESULTS
Congo red staining and immunohistochemistry was performed to assess the presence, type and extent of amyloid and associated changes in 5 explanted ATTR-CM atria. Echo speckle-tracking was used to assess LA reservoir, conduit, contractile function and stiffness in 906 ATTR-CM patients (551 wt-ATTR-CM;93 T60A-ATTR-CM;241 V122I-ATTR-CM;21 other).
There was extensive ATTR amyloid infiltration in the 5 atria with loss of normal architecture, vessels remodelling, capillary disruption and subendocardial fibrosis. Echo speckle-tracking in 906 ATTR-CM patients demonstrated increased atrial stiffness [median(25th-75th quartile) 1.83(1.15-2.92)] that remained independently associated with prognosis, after adjusting for known predictors (lnLA stiff:HR = 1.26,CI 1.07-1.57;p = 0.009). There was substantial impairment of the three phasic functional atrial components [reservoir 8.86(5.94-12.97)%; conduit 6.5(4.53-9.28)%; contraction function 4.0(2.29-6.56)%]. Atrial contraction was absent in 21.6% of patients whose ECG showed sinus rhythm (SR)-"atrial electro-mechanical dissociation"(AEMD). AEMD was associated with poorer prognosis compared to SR patients with effective mechanical contraction (p < 0.0001). AEMD conferred a similar prognosis to patients in AF.
CONCLUSION
The phenotype of ATTR-CM includes significant infiltration of the atrial walls with progressive loss of atrial function and increased stiffness, which is a strong independent predictor of mortality. AEMD emerged as a distinctive phenotype identifying patients in SR with poor prognosis.
Abstract Figure.
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Affiliation(s)
- F Bandera
- IRCCS Polyclinic San Donato, Department of University Cardiology, Milan, Italy
| | - R Martone
- Royal Free Hospital, National Amyloidosis Centre, University College London, London, United Kingdom of Great Britain & Northern Ireland
| | - L Chacko
- Royal Free Hospital, National Amyloidosis Centre, University College London, London, United Kingdom of Great Britain & Northern Ireland
| | - S Ganesananthan
- Royal Free Hospital, National Amyloidosis Centre, University College London, London, United Kingdom of Great Britain & Northern Ireland
| | - JA Gilbertson
- Royal Free Hospital, National Amyloidosis Centre, University College London, London, United Kingdom of Great Britain & Northern Ireland
| | - M Ponticos
- Royal Free Hospital, National Amyloidosis Centre, University College London, London, United Kingdom of Great Britain & Northern Ireland
| | - A Petrie
- Royal Free Hospital, National Amyloidosis Centre, University College London, London, United Kingdom of Great Britain & Northern Ireland
| | - F Cappelli
- Careggi University Hospital (AOUC), Tuscan Regional Amyloid Center, Florence, Italy
| | - M Guazzi
- IRCCS Polyclinic San Donato, Department of University Cardiology, Milan, Italy
| | - L Potena
- Azienda Ospedaliero, Universitaria di Bologna, Policlinico S.Orsola-Malpigh, Bologna, Italy
| | - C Rapezzi
- University Hospital of Ferrara, Ferrara, Italy
| | - O Leone
- Azienda Ospedaliero, Universitaria di Bologna, Policlinico S.Orsola-Malpigh, Bologna, Italy
| | - P Hawkins
- Royal Free Hospital, National Amyloidosis Centre, University College London, London, United Kingdom of Great Britain & Northern Ireland
| | - JD Gillmore
- Royal Free Hospital, National Amyloidosis Centre, University College London, London, United Kingdom of Great Britain & Northern Ireland
| | - M Fontana
- Royal Free Hospital, National Amyloidosis Centre, University College London, London, United Kingdom of Great Britain & Northern Ireland
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9
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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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10
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Cohen O, Ismail A, Manwani R, Ravichandran S, Foard D, Mahmood S, Sachchithanantham S, Martinez-Naharro A, Fontana M, Lachmann H, Hawkins P, Gillmore J, Whelan C, Wechalekar A. Global longitudinal strain predicts survival and response in patients with systemic AL amyloidosis. analysis of 915 patients from the ALchemy prospective trial. Eur Heart J 2020. [DOI: 10.1093/ehjci/ehaa946.0856] [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: 11/14/2022] Open
Abstract
Abstract
Background
Cardiac involvement determines prognosis in systemic AL amyloidosis. The extent is assessed by biomarker-based staging systems. This a prospective report of a large cohort of patients assessing the utility of changes in longitudinal function by 2D strain (GLS%), impairment - a hallmark of amyloidosis.
Purpose
To evaluate the prognostic role of GLS% and other echocardiographic parameters in systemic AL amyloidosis.
Methods
915 newly diagnosed patients seen at the UK National Amyloidosis Centre (February 2010–August 2017) were included. All patients underwent 6-monthly comprehensive assessments inclusive of echocardiogram. The European modification of the Mayo 2004 staging was used with Mayo stage III patients stratified into IIIa (NT-proBNP <8500ng/L) and IIIb (NT-proBNP ≥8500ng/L).
Results
653/915 (71.4%) patients had cardiac involvement. Mayo stage 1, 2, 3a and 3b in 144 (15.7%), 302 (33.0%) 344 (37.6%) and 125 (13.7%) respectively. The median NT-proBNP was 2228ng/L and TNT was 0.54ng/ml. The GLS% significantly worsened with increasing Mayo stage (p<0.0001 between GLS% for each Mayo stage). Poorer baseline GLS% associated with significantly worse OS and stratified patients into three groups: GLS% <−12.8%: OS 69.1 months; GLS% −12.8% to −9%: OS 54.5 months; GLS% >−9%: OS 45.3 months (p<0.0001). On univariate analysis, 11/14 parameters predicted survival (LV wall thickness, LV ejection fraction, systolic velocities of the septal (s'sep) and lateral mitral annulus (s' lat), mitral annulus movement at the lateral corner (e' lat), transmitral early peak flow velocity (E) divided by tissue Doppler mitral annular motion velocity (e') – E/e' and mitral annular plane systolic excursion (MAPSE)). Baseline GLS% >−17% was independent of Mayo stage in predicting survival [Mayo II: Hazard ratio (HR) 2.10 (95% CI: 1.12–3.92) p=0.02, Mayo III: HR 3.94 (95% CI: 2.13–7.32) p<0.0001, Mayo IV: HR 7.49 (95% CI: 3.94–14.21) p<0.0001, GLS <17%: HR 2.14 (95% CI: 1.59–2.88) p<0.0001]. At 12 months, only patients in a haematological complete response (CR) had significant improvement in overall GLS% (p=0.02) as well as baso-lateral (p=0.0004) and baso-septal (p=0.0001) GLS% and MAPSE (p=0.002). The OS was significantly better in patients who achieved a minimum absolute improvement in GLS% of 1.5% improvement (not reached in those with improved GLS% vs. 72 mo in those without) (p=0.034)).
Conclusion
These data show that baseline GLS% is an independent predictor of survival in AL amyloidosis. GLS% is the first functional marker that is independent of the Mayo staging in predicting outcomes and should be incorporated in prognostic staging for patients with AL amyloidosis. GLS% shows improvement in patients who achieve a complete haematologic response to treatment and improvement in GLS% of 1.5% is associated with improved outcomes. An absolute improvement in GLS% should be considered as a criterion for cardiac response in AL amyloidosis.
Funding Acknowledgement
Type of funding source: None
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Affiliation(s)
- O Cohen
- National Amyloidosis Centre, Royal Free Hospital, Greater London, United Kingdom
| | - A Ismail
- National Amyloidosis Centre, Royal Free Hospital, Greater London, United Kingdom
| | - R Manwani
- National Amyloidosis Centre, Royal Free Hospital, Greater London, United Kingdom
| | - S Ravichandran
- National Amyloidosis Centre, Royal Free Hospital, Greater London, United Kingdom
| | - D Foard
- National Amyloidosis Centre, Royal Free Hospital, Greater London, United Kingdom
| | - S Mahmood
- National Amyloidosis Centre, Royal Free Hospital, Greater London, United Kingdom
| | - S Sachchithanantham
- National Amyloidosis Centre, Royal Free Hospital, Greater London, United Kingdom
| | - A Martinez-Naharro
- National Amyloidosis Centre, Royal Free Hospital, Greater London, United Kingdom
| | - M Fontana
- National Amyloidosis Centre, Royal Free Hospital, Greater London, United Kingdom
| | - H Lachmann
- National Amyloidosis Centre, Royal Free Hospital, Greater London, United Kingdom
| | - P Hawkins
- National Amyloidosis Centre, Royal Free Hospital, Greater London, United Kingdom
| | - J Gillmore
- National Amyloidosis Centre, Royal Free Hospital, Greater London, United Kingdom
| | - C Whelan
- National Amyloidosis Centre, Royal Free Hospital, Greater London, United Kingdom
| | - A.D Wechalekar
- National Amyloidosis Centre, Royal Free Hospital, Greater London, United Kingdom
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11
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Lilley E, Andrews MR, Bradbury EJ, Elliott H, Hawkins P, Ichiyama RM, Keeley J, Michael-Titus AT, Moon LDF, Pluchino S, Riddell J, Ryder K, Yip PK. Refining rodent models of spinal cord injury. Exp Neurol 2020; 328:113273. [PMID: 32142803 DOI: 10.1016/j.expneurol.2020.113273] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/04/2019] [Revised: 02/28/2020] [Accepted: 03/02/2020] [Indexed: 01/16/2023]
Abstract
This report was produced by an Expert Working Group (EWG) consisting of UK-based researchers, veterinarians and regulators of animal experiments with specialist knowledge of the use of animal models of spinal cord injury (SCI). It aims to facilitate the implementation of the Three Rs (Replacement, Reduction and Refinement), with an emphasis on refinement. Specific animal welfare issues were identified and discussed, and practical measures proposed, with the aim of reducing animal use and suffering, reducing experimental variability, and increasing translatability within this critically important research field.
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Affiliation(s)
- Elliot Lilley
- Research Animals Department, Royal Society for the Prevention of Cruelty to Animals, Wilberforce Way, Southwater, Horsham, West Sussex RH13 9RS, UK.
| | - Melissa R Andrews
- Biological Sciences, University of Southampton, 3059, Life Sciences Bldg 85, Highfield Campus, Southampton SO17 1BJ, UK.
| | - Elizabeth J Bradbury
- King's College London, Regeneration Group, Wolfson Centre for Age-Related Diseases, Institute of Psychiatry, Psychology and Neuroscience (IoPPN), Guy's Campus, London SE1 1UL, UK.
| | - Heather Elliott
- Animals in Scientific Research Unit, 14th Floor, Lunar House, 40 Wellesley Road, Croydon CR9 2BY, UK.
| | - Penny Hawkins
- Research Animals Department, Royal Society for the Prevention of Cruelty to Animals, Wilberforce Way, Southwater, Horsham, West Sussex RH13 9RS, UK.
| | - Ronaldo M Ichiyama
- School of Biomedical Sciences, Faculty of Biological Sciences, University of Leeds, UK.
| | - Jo Keeley
- University Biomedical Services, University of Cambridge, Greenwich House, Madingley Rise, Madingley Road, Cambridge CB3 0TX, UK.
| | - Adina T Michael-Titus
- Centre for Neuroscience, Surgery and Trauma, Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, 4 Newark St, London E1 2AT, UK.
| | - Lawrence D F Moon
- King's College London, Regeneration Group, Wolfson Centre for Age-Related Diseases, Institute of Psychiatry, Psychology and Neuroscience (IoPPN), Guy's Campus, London SE1 1UL, UK.
| | - Stefano Pluchino
- University Biomedical Services, University of Cambridge, Greenwich House, Madingley Rise, Madingley Road, Cambridge CB3 0TX, UK.
| | - John Riddell
- Spinal Cord Group, Institute of Neuroscience and Psychology, College of Medical, Veterinary and Life Sciences, University of Glasgow, Glasgow G12 8QQ, UK.
| | - Kathy Ryder
- Animals in Scientific Research Unit, 14th Floor, Lunar House, 40 Wellesley Road, Croydon CR9 2BY, UK.
| | - Ping K Yip
- Centre for Neuroscience, Surgery and Trauma, Blizard Institute, Barts and the London School of Medicine and Dentistry, Queen Mary University of London, 4 Newark St, London E1 2AT, UK.
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12
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Mazhary H, Hawkins P. Applying the 3Rs: A Case Study on Evidence and Perceptions Relating to Rat Cage Height in the UK. Animals (Basel) 2019; 9:ani9121104. [PMID: 31835402 PMCID: PMC6940895 DOI: 10.3390/ani9121104] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/31/2019] [Revised: 11/29/2019] [Accepted: 12/03/2019] [Indexed: 12/22/2022] Open
Abstract
This article investigates the barriers to implementing higher caging in animal research establishments in the UK. The use of animals in research and testing in the UK is regulated by the Animals (Scientific Procedures) Act 1986, which sets out how animal experiments must be licensed and regulated. Within this, the Code of Practice currently allows laboratory rats to be housed in cages that are 20 cm high, even though adults can rear up to 30 cm. Most adult rats therefore cannot stand upright in 'standard' cages. We found that the main factors hindering the implementation of higher caging were classified into five different groups; health and safety, financial, animal welfare, scientific, and 'human'. Suggestions to overcome these barriers are provided, as well as alternative animal welfare changes that can be put into place. We conclude that much of the desired evidence for moving to higher cages is already available, and therefore the focus should be on education and improving access to the existing evidence, in order to encourage facilities to work around existing financial and health and safety concerns.
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Affiliation(s)
- Hibba Mazhary
- School of Geography and the Environment, University of Oxford, Oxford OX1 3QY, UK
- Correspondence:
| | - Penny Hawkins
- Research Animals Department, RSPCA, Wilberforce Way, Southwater, West Sussex RH13 9RS, UK;
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13
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Hawkins P, Bertelsen T. 3Rs-Related and Objective Indicators to Help Assess the Culture of Care. Animals (Basel) 2019; 9:ani9110969. [PMID: 31739394 PMCID: PMC6912394 DOI: 10.3390/ani9110969] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/14/2019] [Revised: 11/01/2019] [Accepted: 11/12/2019] [Indexed: 11/16/2022] Open
Abstract
Simple Summary ‘Culture of Care’ within animal research and testing refers to a commitment to improve animal welfare, the quality of the science, staff morale, and openness with the public. An effective Culture of Care should also promote the replacement of animal experiments with humane alternatives, reductions in animal numbers and suffering, and better welfare through the refinement of procedures, housing, husbandry and care (collectively known as the 3Rs). The Culture of Care is recognized as the foundation of humane and responsible science, but the concept should be applied in a meaningful way and not simply used as a ‘buzzword’. Recognizing this, some establishments have begun to define and assess their individual Culture of Care. This paper provides some examples of their approaches to surveying staff and external colleagues. It also sets out some suggestions for objective criteria for assessing the Culture of Care, and for indicators that capture progress with each of the 3Rs. The aim is to complement the growing literature on the Culture of Care and highlight some sources of information and inspiration to help establishments tailor their own assessments. Abstract Within animal research and testing, the need for an effective Culture of Care is widely recognized and described in terms of an establishment-wide commitment to improving the implementation of the 3Rs, animal welfare, scientific quality, care of the staff, and transparency for all stakeholders, including the public. Ideally, each establishment would determine what the Culture of Care means for them, and be able to assess and potentially benchmark their own culture. Some establishments already do this, using various indicators and formal or informal assessments. This paper provides examples of these approaches to assessing the Culture of Care, including surveys and surrogate measures. Many currently-used criteria and indicators tend to be human-centric and subjective, and we suggest using further objective indicators and animal-centric, 3Rs-based criteria. It is preferable to consider each of the 3Rs separately when assessing culture, and some indicators are suggested to facilitate this. Several documents produced by regulators in the UK and European Union are good sources of objective indicators of a good Culture of Care. This concept paper aims to complement the literature on assessing the Culture of Care, providing ideas and sources of information to help identify relevant and measurable criteria.
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Affiliation(s)
- Penny Hawkins
- RSPCA Research Animals Department; Wilberforce Way, Southwater, West Sussex RH13 9RS, UK
- Correspondence:
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14
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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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15
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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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16
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Martinez Naharro A, Kotecha T, Gonzalez-Lopez E, Corovic A, Anderson S, Chacko L, Brown J, Knight DS, Baksi AJ, Moon JC, Kellman P, Garcia-Pavia P, Gillmore J, Hawkins P, Fontana M. 549High prevalence of intracardiac thrombi in cardiac amyloidosis. Eur Heart J Cardiovasc Imaging 2019. [DOI: 10.1093/ehjci/jez125] [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)
- A Martinez Naharro
- University College London, CMR Unit at Royal Free Hospital, London, United Kingdom of Great Britain & Northern Ireland
| | - T Kotecha
- University College London, CMR Unit at Royal Free Hospital, London, United Kingdom of Great Britain & Northern Ireland
| | - E Gonzalez-Lopez
- University Hospital Puerta de Hierro Majadahonda, Department of Cardiology, Madrid, Spain
| | - A Corovic
- University College London, CMR Unit at Royal Free Hospital, London, United Kingdom of Great Britain & Northern Ireland
| | - S Anderson
- University College London, CMR Unit at Royal Free Hospital, London, United Kingdom of Great Britain & Northern Ireland
| | - L Chacko
- University College London, CMR Unit at Royal Free Hospital, London, United Kingdom of Great Britain & Northern Ireland
| | - J Brown
- University College London, CMR Unit at Royal Free Hospital, London, United Kingdom of Great Britain & Northern Ireland
| | - D S Knight
- University College London, CMR Unit at Royal Free Hospital, London, United Kingdom of Great Britain & Northern Ireland
| | - A J Baksi
- Royal Brompton Hospital, London, United Kingdom of Great Britain & Northern Ireland
| | - J C Moon
- Barts Health NHS Trust, London, United Kingdom of Great Britain & Northern Ireland
| | - P Kellman
- National Institutes of Health, National Heart, Lung and Blood Institute, Bethesda, United States of America
| | - P Garcia-Pavia
- University Hospital Puerta de Hierro Majadahonda, Department of Cardiology, Madrid, Spain
| | - J Gillmore
- University College London, CMR Unit at Royal Free Hospital, London, United Kingdom of Great Britain & Northern Ireland
| | - P Hawkins
- University College London, CMR Unit at Royal Free Hospital, London, United Kingdom of Great Britain & Northern Ireland
| | - M Fontana
- University College London, CMR Unit at Royal Free Hospital, London, United Kingdom of Great Britain & Northern Ireland
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Langley G, Harding G, Hawkins P, Jones A, Newman C, Swithenby S, Thompson D, Tofts P, Walsh V. Volunteer Studies Replacing Animal Experiments in Brain Research. Altern Lab Anim 2019; 28:315-31. [PMID: 25413241 DOI: 10.1177/026119290002800207] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Affiliation(s)
- Gill Langley
- Dr Hadwen Trust for Humane Research, 84a Tilehouse Street, Hitchin, Hertfordshire SG5 2DY, UK
| | - Graham Harding
- Psychology Institute, Life and Health Sciences, Aston University, Aston Triangle, Birmingham, West Midlands B4 7ET, UK
| | - Penny Hawkins
- Royal Society for the Prevention of Cruelty to Animals, The Causeway, Horsham, West Sussex RH12 1HG, UK
| | - Anthony Jones
- Rheumatic Diseases Centre, Clinical Sciences Building, Hope Hospital, University of Manchester, Eccles Old Road, Salford, M6 8HD, UK
| | - Carol Newman
- Dr Hadwen Trust for Humane Research, 84a Tilehouse Street, Hitchin, Hertfordshire SG5 2DY, UK
| | - Stephen Swithenby
- The Open University, Walton Hall, Milton Keynes, Buckinghamshire MK7 6AA, UK
| | - David Thompson
- Section of Gastrointestinal Science, Clinical Sciences Building, Hope Hospital, University of Manchester, Eccles Old Road, Salford M6 8HD, UK
| | - Paul Tofts
- NMR Research Unit, Institute of Neurology, University College London, Queen Square, London WC1N 3BG, UK
| | - Vincent Walsh
- Department of Experimental Psychology, University of Oxford, South Parks Road, Oxford OX1 3UD, UK
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18
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Langley G, Broadhead C, Bottrill K, Combes R, Ewbank R, Hawkins P, Hubrecht R, Jennings M, Newman C, Rowe S, Southee J, Todd M, Ward L. Accessing Information on the Reduction, Refinement and Replacement of Animal Experiments. Altern Lab Anim 2019; 27:239-45. [DOI: 10.1177/026119299902700208] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Gill Langley
- Dr Hadwen Trust for Humane Research, 84a Tilehouse Street, Hitchin, Herts. SG5 2DY, UK
| | - Caren Broadhead
- FRAME, Russell & Burch House, 96–98 North Sherwood Street, Nottingham NG1 4EE, UK
| | - Krys Bottrill
- FRAME, Russell & Burch House, 96–98 North Sherwood Street, Nottingham NG1 4EE, UK
| | - Robert Combes
- FRAME, Russell & Burch House, 96–98 North Sherwood Street, Nottingham NG1 4EE, UK
| | - Roger Ewbank
- Institute of Biology, 20 Queensberry Place, London SW7 2DZ, UK
| | - Penny Hawkins
- Royal Society for the Prevention of Cruelty to Animals, The Causeway, Horsham, West Sussex RH12 1HG, UK
| | - Robert Hubrecht
- Universities Federation for Animal Welfare, The Old School, Brewhouse Hill, Wheathampstead, Herts. AL4 8AN, UK
| | - Maggy Jennings
- Royal Society for the Prevention of Cruelty to Animals, The Causeway, Horsham, West Sussex RH12 1HG, UK
| | - Carol Newman
- Dr Hadwen Trust for Humane Research, 84a Tilehouse Street, Hitchin, Herts. SG5 2DY, UK
| | - Sally Rowe
- Lord Dowding Fund for Humane Research, 261 Goldhawk Road, London W12 9PE, UK
| | | | - Martin Todd
- Zeneca Pharmaceuticals, Mereside, Alderley Park, Macclesfield, Cheshire SK10 4TG
| | - Les Ward
- St Andrew Animal Fund, 10 Queensferry Street, Edinburgh EH2 4PG, UK
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19
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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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20
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Bader R, Mannucci PMM, Tripodi A, Hirsh J, Keller F, Solleder EM, Hawkins P, Peng M, Pelzer H, Teijidor LM, Ramirez IF, Kolde HJ. Multicentric Evaluation of a New PT Reagent Based on Recombinant Human Tissue Factor and Synthetic Phospholipids. Thromb Haemost 2018. [DOI: 10.1055/s-0038-1642433] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
SummaryA new PT reagent based on recombinant human tissue factor and synthetic phospholipids (phosphatidyl choline and phosphatidyl serine) with defined fatty acid side chains was calibrated against BCT/253 and CRM 149R. A small but consistent bias in the International Sensitivity Index (ISI) value was obtained using either the human or rabbit brain reference material. ISI values were around 1.0 or slightly lower depending on the respective instrument. Mixing studies with factor deficient plasmas showed a high factor sensitivity especially for factor VII as compared to commercial rabbit brain or human placenta thromboplastin. In an international field trial the reagent was tested using fully or semi automated Electra™ coagulometers in 4 different laboratories. Results with normal samples were in excellent agreement among the different laboratories. Mean values were 10.9, 10.9, 11.0, 11,7 s with a range of 9.5 to 12.5 s. Results of males and females were not different. In patients with liver disease very similar PT activities were found as compared to sensitive rabbit brain or human placental thromboplastins. In normals and patients with oral anticoagulation INR values correlated very well against BCT (r = 0.98, regression line y =-0.07 + 0.9 x). The distribution of samples was linear over the whole range. In the comparison against sensitive rabbit brain thromboplastin or human placental thromboplastin similar correlations were found. In a few cases higher INR values were observed for the recombinant reagent especially in patients with intensive treatment. Factor assays in those patients showed at least the strong reduction of one vitamin Independent coagulation factor. Over all the linearity was better against the rabbit brain reagent than against the human placental reagent which is slightly less factor VII sensitive as shown in mixing studies with normal and factor VII deficient plasma. Precision studies in the 4 laboratories showed excellent reproducibility of lyophilised controls or local patient plasma pools for all reagents with a better performance of the recombinant reagent. C. V. values from day to day ranged from 1.3% to 5% for normal and abnormal controls.These results show that the recombinant PT reagent, especially in conjunction with a precise automated instrument, may improve the results of PT testing and thus may lead to better patient care.
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Affiliation(s)
- R Bader
- The IRCCS Maggiore Hospital and University, Policlinico Centro Hemophilia, Milano, Italy
| | - P M M Mannucci
- The IRCCS Maggiore Hospital and University, Policlinico Centro Hemophilia, Milano, Italy
| | - A Tripodi
- The IRCCS Maggiore Hospital and University, Policlinico Centro Hemophilia, Milano, Italy
| | - J Hirsh
- The Hamilton Civic Hospitals Research Centre, Hamilton, Ontario, Canada
| | - F Keller
- The Medizinische Universitätsklinik, Zentrallabor, Würzburg, Germany
| | - E M Solleder
- The Medizinische Universitätsklinik, Zentrallabor, Würzburg, Germany
| | - P Hawkins
- The Baxter Diagnostics, R & D, Miami, Florida, USA
| | - M Peng
- The Baxter Diagnostics, R & D, Miami, Florida, USA
| | - H Pelzer
- The Baxter Diagnostics, R & D, Miami, Florida, USA
| | - L M Teijidor
- The Baxter Diagnostics, R & D, Miami, Florida, USA
| | - I F Ramirez
- The Baxter Deutschland GmbH, Haemostase Europa, Unterschleißheim/München, Germany
| | - H-J Kolde
- The Baxter Deutschland GmbH, Haemostase Europa, Unterschleißheim/München, Germany
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Alharbi A, Boguslavskiy AE, Austin D, Thiré N, Wood D, Hawkins P, McGrath F, Johnson AS, Lopez-Quintas I, Schmidt B, Légaré F, Marangos JP, Le AT, Bhardwaj R. Author Correction: Femtosecond Laser Mass Spectrometry and High Harmonic Spectroscopy of Xylene Isomers. Sci Rep 2018; 8:7536. [PMID: 29743528 PMCID: PMC5943455 DOI: 10.1038/s41598-018-25623-1] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Affiliation(s)
- Abdullah Alharbi
- Department of Physics, Advanced Research Complex, University of Ottawa, 25 Templeton Street, Ottawa, K1N6N5, Ontario, Canada.,King Abdulaziz City for Science and Technology (KACST), P.O. Box 6086, Riyadh, 11442, Saudi Arabia
| | - Andrey E Boguslavskiy
- Department of Physics, Advanced Research Complex, University of Ottawa, 25 Templeton Street, Ottawa, K1N6N5, Ontario, Canada
| | - Dane Austin
- Blackett Laboratory, Imperial College London, London, UK
| | - Nicolas Thiré
- INRS-EMT, Advanced Laser Light Source, 1650 Lionel-Boulet Bvd, Varennes, J3X1S2, Canada
| | - D Wood
- Blackett Laboratory, Imperial College London, London, UK
| | - P Hawkins
- Blackett Laboratory, Imperial College London, London, UK
| | | | - A S Johnson
- Blackett Laboratory, Imperial College London, London, UK
| | - I Lopez-Quintas
- Instituto de Química Física Rocasolano, IQFR-CSIC, Serrano 119, 28006, Madrid, Spain
| | - Bruno Schmidt
- INRS-EMT, Advanced Laser Light Source, 1650 Lionel-Boulet Bvd, Varennes, J3X1S2, Canada
| | - Francois Légaré
- INRS-EMT, Advanced Laser Light Source, 1650 Lionel-Boulet Bvd, Varennes, J3X1S2, Canada
| | - J P Marangos
- Blackett Laboratory, Imperial College London, London, UK.
| | - Anh-Thu Le
- J. R. Macdonald Laboratory, Physics Department, Kansas State University, Manhattan, Kansas, 66506-2604, USA.
| | - Ravi Bhardwaj
- Department of Physics, Advanced Research Complex, University of Ottawa, 25 Templeton Street, Ottawa, K1N6N5, Ontario, Canada.
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22
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Hawkins P. Therapeutic advances in hereditary ATTR amyloidosis. Neuromuscul Disord 2018. [DOI: 10.1016/s0960-8966(18)30292-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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23
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Alharbi A, Boguslavskiy AE, Austin D, Thiré N, Wood D, Hawkins P, McGrath F, Johnson AS, Lopez-Quintas I, Schmidt B, Légaré F, Marangos JP, Le AT, Bhardwaj R. Femtosecond Laser Mass Spectrometry and High Harmonic Spectroscopy of Xylene Isomers. Sci Rep 2018; 8:3789. [PMID: 29491420 PMCID: PMC5830629 DOI: 10.1038/s41598-018-22055-9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2017] [Accepted: 02/12/2018] [Indexed: 11/09/2022] Open
Abstract
Structural isomers, molecules having the same chemical formula but with atoms bonded in different order, are hard to identify using conventional spectroscopy and mass spectrometry. They exhibit virtually indistinguishable mass spectra when ionized by electrons. Laser mass spectrometry based on photoionization of the isomers has emerged as a promising alternative but requires shaped ultrafast laser pulses. Here we use transform limited femtosecond pulses to distinguish the isomers using two methods. First, we probe doubly charged parent ions with circularly polarized light. We show that the yield of doubly charged ortho-xylene decreases while para-xylene increases over a range of laser intensities when the laser polarization is changed from linear to circular. Second, we probe high harmonic generation from randomly oriented isomer molecules subjected to an intense laser field. We show that the yield of high-order harmonics varies with the positioning of the methyl group in xylene isomers (ortho-, para- and meta-) and is due to differences in the strength of tunnel ionization and the overlap between the angular peaks of ionization and photo-recombination.
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Affiliation(s)
- Abdullah Alharbi
- Department of Physics, Advanced Research Complex, University of Ottawa, 25 Templeton Street, Ottawa, K1N6N5, Ontario, Canada.,King Abdulaziz City for Science and Technology (KACST), P.O. Box 6086, Riyadh, 11442, Saudi Arabia
| | - Andrey E Boguslavskiy
- Department of Physics, Advanced Research Complex, University of Ottawa, 25 Templeton Street, Ottawa, K1N6N5, Ontario, Canada
| | - Dane Austin
- Blackett Laboratory, Imperial College London, London, UK
| | - Nicolas Thiré
- INRS-EMT, Advanced Laser Light Source, 1650 Lionel-Boulet Bvd, Varennes, J3X1S2, Canada
| | - D Wood
- Blackett Laboratory, Imperial College London, London, UK
| | - P Hawkins
- Blackett Laboratory, Imperial College London, London, UK
| | | | - A S Johnson
- Blackett Laboratory, Imperial College London, London, UK
| | - I Lopez-Quintas
- Instituto de Química Física Rocasolano, IQFR-CSIC, Serrano 119, 28006, Madrid, Spain
| | - Bruno Schmidt
- INRS-EMT, Advanced Laser Light Source, 1650 Lionel-Boulet Bvd, Varennes, J3X1S2, Canada
| | - Francois Légaré
- INRS-EMT, Advanced Laser Light Source, 1650 Lionel-Boulet Bvd, Varennes, J3X1S2, Canada
| | - J P Marangos
- Blackett Laboratory, Imperial College London, London, UK.
| | - Anh-Thu Le
- J. R. Macdonald Laboratory, Physics Department, Kansas State University, Manhattan, Kansas, 66506-2604, USA.
| | - Ravi Bhardwaj
- Department of Physics, Advanced Research Complex, University of Ottawa, 25 Templeton Street, Ottawa, K1N6N5, Ontario, Canada.
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24
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Kappel S, Hawkins P, Mendl MT. To Group or Not to Group? Good Practice for Housing Male Laboratory Mice. Animals (Basel) 2017; 7:ani7120088. [PMID: 29186765 PMCID: PMC5742782 DOI: 10.3390/ani7120088] [Citation(s) in RCA: 109] [Impact Index Per Article: 15.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2017] [Revised: 11/19/2017] [Accepted: 11/20/2017] [Indexed: 12/17/2022] Open
Abstract
Simple Summary Wild mice live in territories inhabited by one adult male, several females, and their offspring. This cannot be replicated in the laboratory, so male mice are usually housed in single-sex groups or individually. However, there can be serious animal welfare problems associated with both these approaches, such as lack of social contact when housed individually or aggression between males when kept in groups. Group housing is widely recommended to give male laboratory mice the opportunity to behave as ‘social animals’, but social stress can be detrimental to the welfare of these animals, even without injurious fighting. All of this can also affect the quality of the science, giving rise to ethical concerns. This review discusses whether it is in the best welfare interests of male mice to be housed in groups, or alone. We conclude that it is not possible to give general recommendations for good practice for housing male laboratory mice, as responses to single- and group-housing can be highly context-dependent. The welfare implications of housing protocols should be researched and considered in each case. Abstract It is widely recommended to group-house male laboratory mice because they are ‘social animals’, but male mice do not naturally share territories and aggression can be a serious welfare problem. Even without aggression, not all animals within a group will be in a state of positive welfare. Rather, many male mice may be negatively affected by the stress of repeated social defeat and subordination, raising concerns about welfare and also research validity. However, individual housing may not be an appropriate solution, given the welfare implications associated with no social contact. An essential question is whether it is in the best welfare interests of male mice to be group- or singly housed. This review explores the likely impacts—positive and negative—of both housing conditions, presents results of a survey of current practice and awareness of mouse behavior, and includes recommendations for good practice and future research. We conclude that whether group- or single-housing is better (or less worse) in any situation is highly context-dependent according to several factors including strain, age, social position, life experiences, and housing and husbandry protocols. It is important to recognise this and evaluate what is preferable from animal welfare and ethical perspectives in each case.
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Affiliation(s)
- Sarah Kappel
- Bristol Veterinary School, Bristol University, Langford House, Langford BS40 5DU, UK;
- Correspondence: (S.K.); (P.H.); Tel.: +44-1403-793-231 (P.H.)
| | - Penny Hawkins
- Research Animals Department, RSPCA, Wilberforce Way, Southwater, West Sussex RH13 9RS, UK
- Correspondence: (S.K.); (P.H.); Tel.: +44-1403-793-231 (P.H.)
| | - Michael T. Mendl
- Bristol Veterinary School, Bristol University, Langford House, Langford BS40 5DU, UK;
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25
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Storan ER, O' Gorman SM, Hawkins P, Aalto L, Murphy A, Markham T. Alpha-1-antitrypsin deficiency-related panniculitis: two cases with diverse clinical courses. Clin Exp Dermatol 2017; 42:520-522. [PMID: 28512995 DOI: 10.1111/ced.13102] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/20/2016] [Indexed: 11/30/2022]
Abstract
Alpha-1-antitrypsin deficiency (AATD)-related panniculitis is an extremely rare and underdiagnosed entity, and there is a paucity of data on its treatment. We report two cases of AATD-related panniculitis. The first was a 24-year-old woman with known AATD who presented with painful leg ulcers refractory to treatment with corticosteroids and colchicine. She had a good response to α1-antitrypsin infusions but required dose adjustment due to flares in disease activity. The second case was a 38-year-old woman who presented with painful nodules on the legs refractory to corticosteroid therapy. Laboratory investigations revealed severe AATD. She had an excellent response to colchicine therapy. In both these cases of AATD, panniculitis was the first clinical manifestation of the disease. AATD-related panniculitis may have none of the typical clinical clues for AATD, such as a family history, cirrhosis or emphysema. Early identification may help prevent these complications from developing.
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Affiliation(s)
- E R Storan
- Department of Dermatology, Galway University Hospital, Galway, Ireland
| | - S M O' Gorman
- Department of Dermatology, Galway University Hospital, Galway, Ireland
| | - P Hawkins
- Department of Respiratory Medicine, Beaumont Hospital, Dublin, Ireland
| | - L Aalto
- Department of Pathology, Galway University Hospital, Galway, Ireland
| | - A Murphy
- Department of Dermatology, Galway University Hospital, Galway, Ireland
| | - T Markham
- Department of Dermatology, Galway University Hospital, Galway, Ireland
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26
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Hawkins P, Golledge HDR. The 9 to 5 Rodent - Time for Change? Scientific and animal welfare implications of circadian and light effects on laboratory mice and rats. J Neurosci Methods 2017; 300:20-25. [PMID: 28502554 DOI: 10.1016/j.jneumeth.2017.05.014] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2017] [Revised: 05/07/2017] [Accepted: 05/09/2017] [Indexed: 10/19/2022]
Abstract
Rodents, particularly rats and mice, are the most commonly used laboratory animals and are extensively used in neuroscience research, including as translational models for human disorders. It is common practice to carry out scientific procedures on rats and mice during the daytime, which is the inactive period for these nocturnal species. However, there is increasing evidence for circadian and light-induced effects on rodent physiology and behaviour which may affect the validity of results obtained from mice and rats in neuroscience studies. For example, testing animals during their inactive periods may produce abnormal results due to cognitive deficits, lack of motivation to perform the task or stress from being disturbed during the resting period. In addition, conducting procedures during an animal's resting period may also pose an animal welfare issue, as procedures may be experienced as more stressful than if these were done during the active phase. In this paper we set out the need to consider the impact of time of day and lighting conditions, when scientific procedures or routine husbandry are performed, on both the welfare of mice and rats used in neuroscience research and on data quality. Wherever possible, husbandry and experimental procedures should be conducted at times of day when the animals would be active, and under naturalistic lighting conditions, to minimise stress and maximise data quality and translatability.
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Affiliation(s)
- Penny Hawkins
- Research Animals Department, Royal Society for the Prevention of Cruelty to Animals, Southwater, UK.
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27
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da Silva Filho MI, Försti A, Weinhold N, Meziane I, Campo C, Huhn S, Nickel J, Hoffmann P, Nöthen MM, Jöckel KH, Landi S, Mitchell JS, Johnson D, Morgan GJ, Houlston R, Goldschmidt H, Jauch A, Milani P, Merlini G, Rowcieno D, Hawkins P, Hegenbart U, Palladini G, Wechalekar A, Schönland SO, Hemminki K. Genome-wide association study of immunoglobulin light chain amyloidosis in three patient cohorts: comparison with myeloma. Leukemia 2016; 31:1735-1742. [PMID: 28025584 DOI: 10.1038/leu.2016.387] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2016] [Revised: 10/28/2016] [Accepted: 11/30/2016] [Indexed: 01/27/2023]
Abstract
Immunoglobulin light chain (AL) amyloidosis is characterized by tissue deposition of amyloid fibers derived from immunoglobulin light chain. AL amyloidosis and multiple myeloma (MM) originate from monoclonal gammopathy of undetermined significance. We wanted to characterize germline susceptibility to AL amyloidosis using a genome-wide association study (GWAS) on 1229 AL amyloidosis patients from Germany, UK and Italy, and 7526 healthy local controls. For comparison with MM, recent GWAS data on 3790 cases were used. For AL amyloidosis, single nucleotide polymorphisms (SNPs) at 10 loci showed evidence of an association at P<10-5 with homogeneity of results from the 3 sample sets; some of these were previously documented to influence MM risk, including the SNP at the IRF4 binding site. In AL amyloidosis, rs9344 at the splice site of cyclin D1, promoting translocation (11;14), reached the highest significance, P=7.80 × 10-11; the SNP was only marginally significant in MM. SNP rs79419269 close to gene SMARCD3 involved in chromatin remodeling was also significant (P=5.2 × 10-8). These data provide evidence for common genetic susceptibility to AL amyloidosis and MM. Cyclin D1 is a more prominent driver in AL amyloidosis than in MM, but the links to aggregation of light chains need to be demonstrated.
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Affiliation(s)
- M I da Silva Filho
- Division of Molecular Genetic Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - A Försti
- Division of Molecular Genetic Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany.,Center for Primary Health Care Research, Lund University, Malmo, Sweden
| | - N Weinhold
- Department of Internal Medicine V, University of Heidelberg, Heidelberg, Germany.,Myeloma Institute, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - I Meziane
- Division of Molecular Genetic Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - C Campo
- Division of Molecular Genetic Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany
| | - S Huhn
- Department of Internal Medicine V, University of Heidelberg, Heidelberg, Germany
| | - J Nickel
- Department of Internal Medicine V, University of Heidelberg, Heidelberg, Germany
| | - P Hoffmann
- Institute of Human Genetics, University of Bonn, Bonn, Germany.,Department of Biomedicine, University of Basel, Basel, Switzerland
| | - M M Nöthen
- Institute of Human Genetics, University of Bonn, Bonn, Germany.,Department of Genomics, Life and Brain Research Center, University of Bonn, Bonn, Germany
| | - K-H Jöckel
- Institute for Medical Informatics, Biometry and Epidemiology, University Hospital Essen, University of Duisburg-Essen, Germany
| | - S Landi
- Department of Biology, University of Pisa, Pisa, Italy
| | - J S Mitchell
- Division of Genetics and Epidemiology, The Institute of Cancer Research, Surrey, UK
| | - D Johnson
- Division of Molecular Pathology, The Institute of Cancer Research, Surrey, UK
| | - G J Morgan
- Myeloma Institute, University of Arkansas for Medical Sciences, Little Rock, AR, USA
| | - R Houlston
- Division of Genetics and Epidemiology, The Institute of Cancer Research, Surrey, UK.,Division of Molecular Pathology, The Institute of Cancer Research, Surrey, UK
| | - H Goldschmidt
- Department of Internal Medicine V, University of Heidelberg, Heidelberg, Germany.,National Centre of Tumor Diseases, Heidelberg, Germany
| | - A Jauch
- Institute of Human Genetics, University of Heidelberg, Heidelberg, Germany
| | - P Milani
- Department of Molecular Medicine, Amyloidosis Research and Treatment Center, Foundation 'Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Policlinico San Matteo', University of Pavia, Pavia, Italy
| | - G Merlini
- Department of Molecular Medicine, Amyloidosis Research and Treatment Center, Foundation 'Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Policlinico San Matteo', University of Pavia, Pavia, Italy
| | - D Rowcieno
- National Amyloidosis Centre, University College London Medical School, London UK
| | - P Hawkins
- National Amyloidosis Centre, University College London Medical School, London UK
| | - U Hegenbart
- Department of Internal Medicine V, University of Heidelberg, Heidelberg, Germany
| | - G Palladini
- Department of Molecular Medicine, Amyloidosis Research and Treatment Center, Foundation 'Istituto di Ricovero e Cura a Carattere Scientifico (IRCCS) Policlinico San Matteo', University of Pavia, Pavia, Italy
| | - A Wechalekar
- National Amyloidosis Centre, University College London Medical School, London UK
| | - S O Schönland
- Department of Internal Medicine V, University of Heidelberg, Heidelberg, Germany
| | - K Hemminki
- Division of Molecular Genetic Epidemiology, German Cancer Research Center (DKFZ), Heidelberg, Germany.,Center for Primary Health Care Research, Lund University, Malmo, Sweden
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Hawkins P, Morton DB, Cameron D, Cuthill I, Francis R, Freire R, Gosler A, Healy S, Hudson A, Inglis I, Jones A, Kirkwood J, Lawton M, Monaghan P, Sherwin C, Townsend P. Members of the Joint Working Group on Refinement. Lab Anim 2016. [DOI: 10.1258/0023677011911967] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Affiliation(s)
- Penny Hawkins
- Research Animals Department, RSPCA, Wilberforce Way, Southwater, West Sussex RH13 7WN, UK
| | - D B Morton
- Department of Biomedical Sciences & Biomedical Ethics, University of Birmingham, The Medical School, Edgbaston, Birmingham B15 2TT, UK
| | - David Cameron
- HLS, PO Box 2, Huntingdon, Cambridgeshire PE18 6ES, UK
| | - Innes Cuthill
- Centre for Behavioural Biology, School of Biological Sciences, University of Bristol, Woodland Road, Bristol BS8 1UG, UK
| | - Roger Francis
- Medical School, University of Bristol, University Walk, Bristol BS18 1TD, UK
| | - Raf Freire
- Department of Animal Sciences, Purdue University,1151 Lilly Hall, West Lafayette, IN 47907–1151, USA
| | - Andy Gosler
- EGI, Department of Zoology, University of Oxford, South Parks Road, Oxford OX1 3PS, UK
| | - Sue Healy
- University of Edinburgh, Institute of Cell, Animal & Population Biology, Ashworth Laboratories, Kings Buildings, Edinburgh EH9 3JT, UK
| | - Anne Hudson
- Central Science Laboratory, Sand Hutton, York YO4 1LZ, UK
| | - Ian Inglis
- Central Science Laboratory, Sand Hutton, York YO4 1LZ, UK
| | - Alex Jones
- Oatridge Agriculture College, Ecclesmachan, West Lothian EH52 6NH, UK
| | - James Kirkwood
- UFAW, The Old School, Brewhouse Hill, Wheathampstead, Herts AL4 8AN, UK
| | - Martin Lawton
- Exotic Animal Centre, 12 Fitzilian Avenue, Romford RM3 0QS, UK
| | - Pat Monaghan
- Divison of Environmental & Evolutionary Biology, IBLS, Graham Kerr Building, University of Glasgow, Glasgow G12 8QQ, UK
| | - Chris Sherwin
- Division of Animal Health & Husbandry, University of Bristol, Langford House, Langford, Bristol BS18 7DU, UK
| | - Paul Townsend
- Veterinary Laboratories Agency, Woodham Lane, New Haw, Addlestone, Surrey KT15 3NB, UK
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29
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Smith AJ, Hawkins P. Good Science, Good Sense and Good Sensibilities: The Three Ss of Carol Newton. Animals (Basel) 2016; 6:ani6110070. [PMID: 27845707 PMCID: PMC5126772 DOI: 10.3390/ani6110070] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2016] [Revised: 10/27/2016] [Accepted: 11/07/2016] [Indexed: 11/16/2022] Open
Abstract
The Three Rs principle of Replacement, Reduction and Refinement developed by William M. S. Russell and Rex L. Burch in the 1950s has achieved worldwide recognition as a means of reducing the impact of science on animals and improving their welfare. However, application of the Three Rs is still far from universal, and evidence-based methods to implement the Three Rs are still lacking in many areas of laboratory animal science. The purpose of this paper is to create interest in a less well-known but equally useful principle that complements the Three Rs, which was proposed by the American biomathematician Carol M. Newton in the 1970s: the Three Ss-Good Science, Good Sense and Good Sensibilities.
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Affiliation(s)
- Adrian J Smith
- Norecopa, c/o Norwegian Veterinary Institute, P.O. Box 750 Sentrum, Oslo 0106, Norway.
| | - Penny Hawkins
- Science Group, Research Animals Department, RSPCA, Wilberforce Way, Southwater, West Sussex RH13 9RS, UK.
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30
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Osborne N, Paull G, Grierson A, Dunford K, Busch-Nentwich EM, Sneddon LU, Wren N, Higgins J, Hawkins P. Report of a Meeting on Contemporary Topics in Zebrafish Husbandry and Care. Zebrafish 2016; 13:584-589. [PMID: 27537782 PMCID: PMC5124746 DOI: 10.1089/zeb.2016.1324] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/23/2022] Open
Abstract
A meeting on Contemporary Topics in Zebrafish Husbandry and Care was held in the United Kingdom in 2014, with the aim of providing a discussion forum for researchers, animal technologists, and veterinarians from academia and industry to share good practice and exchange ideas. Presentation topics included protocols for optimal larval rearing, implementing the 3Rs (replacement, reduction, and refinement) in large-scale colony management, and environmental enrichment. The audience also participated in a survey of current practice relating to practical husbandry, cryopreservation, and the provision of enrichment.
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Affiliation(s)
- Nikki Osborne
- 1 Research Animals Department , RSPCA, Southwater, United Kingdom
| | | | | | - Karen Dunford
- 3 University College London , London, United Kingdom
| | | | | | - Natalie Wren
- 6 Francis Crick Institute (previously National Institute for Medical Research) , London, United Kingdom
| | - Joe Higgins
- 6 Francis Crick Institute (previously National Institute for Medical Research) , London, United Kingdom
| | - Penny Hawkins
- 1 Research Animals Department , RSPCA, Southwater, United Kingdom
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31
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Hawkins P, Morton DB, Bevan R, Heath K, Kirkwood J, Pearce P, Scott L, Whelan G, Webb A. Husbandry refinements for rats, mice, dogs and non-human primates used in telemetry procedures. Lab Anim 2016; 38:1-10. [PMID: 14979982 DOI: 10.1258/00236770460734335] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Affiliation(s)
- Penny Hawkins
- Research Animals Department, RSPCA, Wilberforce Way, Southwater, West Sussex, RH13 9RS, UK
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32
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Morton DB, Hawkins P, Bevan R, Heath K, Kirkwood J, Pearce P, Scott L, Whelan G, Webb A. Refinements in telemetry procedures: Seventh report of BVAAWF/FRAME/RSPCA/UFAW Joint Working Group on Refinement, Part A. Lab Anim 2016; 37:261-99. [PMID: 14599304 DOI: 10.1258/002367703322389861] [Citation(s) in RCA: 36] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Affiliation(s)
- David B Morton
- Department of Biomedical Science & Ethics and Biomedical Services Unit, University of Birmingham, Edgbaston, UK
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33
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Hawkins P, Littlefair P. China's primates: EU can't have it all ways. Nature 2016; 534:179. [DOI: 10.1038/534179b] [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: 11/09/2022]
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34
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Omoyinmi E, Standing A, Keylock A, Rowczenio D, Melo Gomes S, Cullup T, Jenkins L, Gilmour K, Eleftheriou D, Lachmann H, Hawkins P, Klein N, Brogan P. SAT0010 A Targeted Next-Generation Sequencing Gene Panel for Autoinflammation. Ann Rheum Dis 2016. [DOI: 10.1136/annrheumdis-2016-eular.3837] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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35
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Kuegler A, Schatz S, Vander Beeken S, Jiang D, Rück A, De Geest B, Hawkins P, Scharffetter-Kochanek K, Anca S. 736 β 2 integrin-dependent activation of NOX2 oxidase in wound macrophages is required for physiological wound healing. J Invest Dermatol 2016. [DOI: 10.1016/j.jid.2016.02.779] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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36
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Pepper R, Hutchinson M, Henderson S, Rowczenio D, Hawkins P, Lachmann H. Calprotectin (S100A8/A9) in Familial Mediterranean Fever. Pediatr Rheumatol Online J 2015. [PMCID: PMC4599818 DOI: 10.1186/1546-0096-13-s1-p120] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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37
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Donnelly O, Youngstein T, Pepper R, Rowczenio D, Hawkins P, Lachmann H. Adult PFAPA - a single centre experience. Pediatr Rheumatol Online J 2015. [PMCID: PMC4599769 DOI: 10.1186/1546-0096-13-s1-p176] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
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38
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Gomes SM, Arostegui J, Omoyinmi E, Standing A, Klein N, Lachmann H, Hawkins P, Brogan P. Whole Exome Sequencing reveals a NLRP3 mutation in exon 5 in a patient with CINCA. Pediatr Rheumatol Online J 2015. [PMCID: PMC4597063 DOI: 10.1186/1546-0096-13-s1-p45] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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39
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Rowczenio D, Iancu D, Trojer H, Gilbertson J, Gillmore J, Wechalekar A, Tekman M, Stanescu H, Kleta R, Lane T, Hawkins P, Lachmann H. Deletion in MEFV resulting in the loss of p.M694 residue as the cause of autosomal dominant familial Mediterranean fever in North Western European Caucasians - a case series and genetic exploration. Pediatr Rheumatol Online J 2015. [PMCID: PMC4596970 DOI: 10.1186/1546-0096-13-s1-o42] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
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40
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Rowczenio D, Gomes SM, Aróstegui J, Omoyinmi E, Gonzalez-Roca E, Standing A, Eleftheriou D, Klein N, Brogan P, Lachmann H, Hawkins P. Late onset of the cryopyrin-associated periodic syndrome (CAPS) associated with low level of somatic mosaicism in six patients. Pediatr Rheumatol Online J 2015. [PMCID: PMC4597082 DOI: 10.1186/1546-0096-13-s1-p37] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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41
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Rowczenio D, Trojer H, Baginska A, Gillmore J, Wechalekar A, Hawkins P, Lachmann H. Clinical symptoms and molecular investigations in 13 patients with Schnitzler syndrome identified at the single UK centre. Pediatr Rheumatol Online J 2015. [PMCID: PMC4596996 DOI: 10.1186/1546-0096-13-s1-p38] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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42
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Standing A, Eleftheriou D, Paisan-Ruiz C, Rowcenzio D, Hong Y, Omoyinmi E, Woo P, Hawkins P, Lachmann H, Klein N, Brogan P. 8th International Congress of Familial Mediterranean Fever and Systemic Autoinflammatory Diseases. Pediatr Rheumatol Online J 2015; 13 Suppl 1:O1-P211. [PMID: 26424586 PMCID: PMC4597419 DOI: 10.1186/1546-0096-13-s1-o1] [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] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Affiliation(s)
- A Standing
- UCL Institute of Child Health, IIIP, London, UK
| | | | | | - D Rowcenzio
- UCL Royal Free Hospital, National Amyloidosis Centre, London, UK
| | - Y Hong
- UCL Institute of Child Health, IIIP, London, UK
| | - E Omoyinmi
- UCL Institute of Child Health, IIIP, London, UK
| | - P Woo
- University College London, London, UK
| | - P Hawkins
- UCL Royal Free Hospital, National Amyloidosis Centre, London, UK
| | - H Lachmann
- UCL Royal Free Hospital, National Amyloidosis Centre, London, UK
| | - N Klein
- UCL Institute of Child Health, IIIP, London, UK
| | - P Brogan
- UCL Institute of Child Health, IIIP, London, UK
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43
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Hawkins P, Armstrong R, Boden T, Garside P, Knight K, Lilley E, Seed M, Wilkinson M, Williams RO. Applying refinement to the use of mice and rats in rheumatoid arthritis research. Inflammopharmacology 2015; 23:131-50. [PMID: 26168847 PMCID: PMC4508365 DOI: 10.1007/s10787-015-0241-4] [Citation(s) in RCA: 44] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/22/2015] [Accepted: 06/24/2015] [Indexed: 12/19/2022]
Abstract
Rheumatoid arthritis (RA) is a painful, chronic disorder and there is currently an unmet need for effective therapies that will benefit a wide range of patients. The research and development process for therapies and treatments currently involves in vivo studies, which have the potential to cause discomfort, pain or distress. This Working Group report focuses on identifying causes of suffering within commonly used mouse and rat ‘models’ of RA, describing practical refinements to help reduce suffering and improve welfare without compromising the scientific objectives. The report also discusses other, relevant topics including identifying and minimising sources of variation within in vivo RA studies, the potential to provide pain relief including analgesia, welfare assessment, humane endpoints, reporting standards and the potential to replace animals in RA research.
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Affiliation(s)
- Penny Hawkins
- Research Animals Department, RSPCA, Wilberforce Way, Southwater, West Sussex, RH13 9RS, UK,
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44
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Kuemmerle-Deschner J, Hoffman H, Hawkins P, van der Poll T, Walker U, Speziale A, Tilson H. SAT0524 Evaluation of Long-Term Safety and Effectiveness of Canakinumab Therapy in Patients with Cryopyrin-Associated Periodic Syndrome: Results from Beta-Confident Registry. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.2224] [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: 11/03/2022]
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45
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Werner RA, Maya Y, Yamane T, Rischpler C, Fukushima K, Chen X, Lapa C, Herrmann K, Higuchi T, Thorn S, Stacy M, Purcell B, Doviak H, Shuman J, Perez E, Burdick J, Spinale F, Sinusas A, Treibel T, Bandula S, Fontana M, White S, Gilbertson J, Punwani S, Gillmore J, Hawkins P, Taylor S, Moon J, Caobelli F, Wollenweber T, Kuehn C, Bavendiek U, Schuetze C, Geworski L, Bauersachs J, Haverich A, Bengel F, Barysheva N, Merkulova I, Shabanova M, Gaman S, Veselova T, Shariya M, Kelion AD, Pakkal M, Chowdhury F, Nagaraj N, Birchall J, Dixon K, Banya W, Mccann G, Gershlick A, Rischpler C, Dirschinger R, Nicolosi S, Kossmann H, Meinicke A, Hanus F, Goetze K, Laugwitz K, Schwaiger M, Nekolla S, Rischpler C, Dirschinger R, Nicolosi S, Kossmann H, Meinicke A, Hanus F, Goetze K, Laugwitz K, Schwaiger M, Nekolla S. Moderated Poster Session 4: Monday 4 May 2015, 15:30-16:30 * Room: Moderated Poster Area. Eur Heart J Cardiovasc Imaging 2015. [DOI: 10.1093/ehjci/jev050] [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: 11/15/2022] Open
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46
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Sidhu M, Gulati A, Hawkins P, Cooper S. P70 Improved Lung Cancer Referral Rates And Early Diagnosis In A District General Hospital. Thorax 2014. [DOI: 10.1136/thoraxjnl-2014-206260.211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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Abstract
Ending severe suffering is a desirable goal for both ethical and scientific reasons. The RSPCA has pledged to work toward the end of such suffering for laboratory animals, and in this article we outline a practical approach that establishments can follow to achieve this aim
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Affiliation(s)
- Elliot Lilley
- RSPCA Research Animals Department Wilberforce Way Southwater Horsham RH13 9RS UK
| | - Penny Hawkins
- RSPCA Research Animals Department Wilberforce Way Southwater Horsham RH13 9RS UK
| | - Maggy Jennings
- RSPCA Research Animals Department Wilberforce Way Southwater Horsham RH13 9RS UK
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48
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Hawkins P. Progress in assessing animal welfare in relation to new legislation: Opportunities for behavioural researchers. J Neurosci Methods 2014; 234:135-8. [DOI: 10.1016/j.jneumeth.2014.02.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/15/2013] [Revised: 01/03/2014] [Accepted: 02/04/2014] [Indexed: 10/25/2022]
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49
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Hawkins P. Refining Housing, Husbandry and Care for Animals Used in Studies Involving Biotelemetry. Animals (Basel) 2014; 4:361-73. [PMID: 26480045 PMCID: PMC4494373 DOI: 10.3390/ani4020361] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2014] [Revised: 06/09/2014] [Accepted: 06/16/2014] [Indexed: 11/25/2022] Open
Abstract
Simple Summary Biotelemetry, the remote detection and measurement of an animal function or activity, is widely used in animal research. Biotelemetry devices transmit physiological or behavioural data and may be surgically implanted into animals, or externally attached. This can help to reduce animal numbers and improve welfare, e.g., if animals can be group housed and move freely instead of being tethered to a recording device. However, biotelemetry can also cause pain and distress to animals due to surgery, attachment, single housing and long term laboratory housing. This article explains how welfare and science can be improved by avoiding or minimising these harms. Abstract Biotelemetry can contribute towards reducing animal numbers and suffering in disciplines including physiology, pharmacology and behavioural research. However, the technique can also cause harm to animals, making biotelemetry a ‘refinement that needs refining’. Current welfare issues relating to the housing and husbandry of animals used in biotelemetry studies are single vs. group housing, provision of environmental enrichment, long term laboratory housing and use of telemetered data to help assess welfare. Animals may be singly housed because more than one device transmits on the same wavelength; due to concerns regarding damage to surgical sites; because they are wearing exteriorised jackets; or if monitoring systems can only record from individually housed animals. Much of this can be overcome by thoughtful experimental design and surgery refinements. Similarly, if biotelemetry studies preclude certain enrichment items, husbandry refinement protocols can be adapted to permit some environmental stimulation. Nevertheless, long-term laboratory housing raises welfare concerns and maximum durations should be defined. Telemetered data can be used to help assess welfare, helping to determine endpoints and refine future studies. The above measures will help to improve data quality as well as welfare, because experimental confounds due to physiological and psychological stress will be minimised.
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Affiliation(s)
- Penny Hawkins
- Research Animals Department, Royal Society for the Prevention of Cruelty to Animals (RSPCA), Wilberforce Way, Southwater, West Sussex, RH13 9RS, UK.
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50
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Carr A, Pelayo A, Gilmore J, Hawkins P, Reilly M. P51 Neuropathy phenotype in hereditary transthyretin amyloidosis. Neuromuscul Disord 2014. [DOI: 10.1016/s0960-8966(14)70067-7] [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: 10/25/2022]
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