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Travail V, Fernandez Sanchez C, Costo JM, Valentine N, Conroy M, Lee V, Bouziopoulos D, Bateman K, Gatehouse E, Cruzado‐Perez J, Pollard D, Lamb V, Juvet F, Kelly D. Assessment of the likelihood of hypothyroidism in dogs diagnosed with and treated for hypothyroidism at primary care practices: 102 cases (2016-2021). J Vet Intern Med 2024; 38:931-941. [PMID: 38314891 PMCID: PMC10937491 DOI: 10.1111/jvim.16993] [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: 12/21/2022] [Accepted: 01/09/2024] [Indexed: 02/07/2024] Open
Abstract
BACKGROUND There is a possibility that an incorrect diagnosis of hypothyroidism could be made in euthyroid dogs, and the prevalence of hypothyroidism in the dog population remains unknown. OBJECTIVES To retrospectively assess the percentage of dogs diagnosed with, and treated for, hypothyroidism at first opinion practice which are likely to be hypothyroid and require levothyroxine supplementation. ANIMALS One hundred two client-owned dogs were included in this study. MATERIALS AND METHODS The computerized databases of 7 first opinion practices were searched to identify dogs treated with levothyroxine supplementation. Three European College of Veterinary Internal Medicine-Companian Animals (ECVIM-CA) diplomates independently assigned 1 of 4 clinical assessments to each case as follows: confirmed or likely hypothyroid, hypothyroidism suspected but not confirmed, hypothyroidism considered unlikely, and no reason to suspect hypothyroidism. They commented as to whether or not they thought levothyroxine supplementation was appropriate. RESULTS The clinical assessments of "confirmed or likely hypothyroid"; "Hypothyroidism suspected but not confirmed"; "Hypothyroidism considered unlikely"; and "No reason to suspect hypothyroidism" was assigned respectively by Clinician 1 to 38.2%, 5.9%, 3.9%, and 52% of cases, by Clinician 2 to 48%, 22.6%, 22.6%, 6.9% of cases, and by Clinician 3 to 55.9%, 11.8%, 13.7% and 18.6%. Clinician 1, Clinician 2, and Clinician 3 considered levothyroxine supplementation not indicated in 58.8%, 52.9%, and 45.1% of cases, respectively. CONCLUSION These results support the concern that hypothyroidism might be overly and incorrectly diagnosed in first opinion practice, and that thyroid function testing should be performed only in those dogs with a high pretest probability of the disease.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | - Valerie Lamb
- Southern Counties Veterinary SpecialistsHampshireUK
| | | | - Darren Kelly
- Southern Counties Veterinary SpecialistsHampshireUK
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Wu H, Kumar M, Fray E, Siliciano R, Smedley J, Meyers G, Maziarz R, Burwitz B, Stanton J, Sacha J, Weber W, Waytashek C, Boyle C, Bateman K, Reed J, Hwang J, Shriver-Munsch C, Northrup M, Armantrout K, Price H, Robertson-LeVay M, Uttke S, Junell S, Moats C, Bochart R, Sciurba J, Bimber B, Sullivan M, Dozier B, MacAllister R, Hobbs T, Martin L, Siliciano J, Axthelm M. OP 6.7 – 00044 Long-term ART-free SIV Remission Following Allogeneic Hematopoietic Cell Transplantation in Mauritian Cynomolgus Macaques. J Virus Erad 2022. [DOI: 10.1016/j.jve.2022.100252] [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: 12/24/2022] Open
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Bevan A, Hoo ZH, Totton N, Girling C, Davids IR, Whelan P, Antrobus S, Ainsworth J, Buchan I, Anderson A, Bourke S, Doe S, Echevarria C, Taylor J, Bell NJ, Bateman K, Jones C, Moran P, Fitch G, Martin M, McGowan A, Morrow S, Seabridge H, Bush N, Daniels T, Lee K, Robson N, Shiferaw D, Sweis D, Thomas R, Faulkner J, Flight WG, Poole S, Warnock L, Allenby MI, Carroll M, Daniels TV, Dunn H, Nightingale JA, Shepherd E, Ohri C, Gadsby J, Range S, Tature D, Barr HL, Dawson S, Dewar J, Miller B, Saini G, Galey P, Johnson J, Pasteur MC, Derry D, Gledhill H, Lawson A, Thomas M, Waine D, Cunningham J, Damani A, Higton A, Orchard C, Carolan C, Tahir M, Plummer A, Hutchings M, Edenborough FP, Curley R, Wildman MJ. Corrigendum to "Using a learning health system to understand the mismatch between medicines supply and actual medicines use among adults with cystic fibrosis" [J Cyst Fibros (2022), 21/2, 323-331]. J Cyst Fibros 2022; 21:893-897. [PMID: 35907767 DOI: 10.1016/j.jcf.2022.07.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Affiliation(s)
- Amanda Bevan
- Wessex Adult Cystic Fibrosis Service, University Hospital Southampton NHS Foundation Trust, Southampton, UK
| | - Zhe Hui Hoo
- School of Health and Related Research (ScHARR), University of Sheffield, Sheffield, UK; Sheffield Adult Cystic Fibrosis Centre, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK
| | - Nikki Totton
- School of Health and Related Research (ScHARR), University of Sheffield, Sheffield, UK
| | - Carla Girling
- School of Health and Related Research (ScHARR), University of Sheffield, Sheffield, UK
| | - India R Davids
- School of Health and Related Research (ScHARR), University of Sheffield, Sheffield, UK
| | - Pauline Whelan
- Centre for Health Informatics, University of Manchester, Manchester, UK
| | - Steven Antrobus
- Centre for Health Informatics, University of Manchester, Manchester, UK
| | - John Ainsworth
- Centre for Health Informatics, University of Manchester, Manchester, UK
| | - Iain Buchan
- Centre for Health Informatics, University of Manchester, Manchester, UK
| | - Alan Anderson
- Newcastle Adult Cystic Fibrosis Centre, The Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
| | - Stephen Bourke
- Newcastle Adult Cystic Fibrosis Centre, The Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
| | - Simon Doe
- Newcastle Adult Cystic Fibrosis Centre, The Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
| | - Carlos Echevarria
- Newcastle Adult Cystic Fibrosis Centre, The Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
| | - Jill Taylor
- Newcastle Adult Cystic Fibrosis Centre, The Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
| | - Nicholas J Bell
- Bristol Adult Cystic Fibrosis Centre, University Hospitals Bristol and Weston NHS Foundation Trust, Bristol, UK
| | - Kathryn Bateman
- Bristol Adult Cystic Fibrosis Centre, University Hospitals Bristol and Weston NHS Foundation Trust, Bristol, UK
| | - Carys Jones
- Bristol Adult Cystic Fibrosis Centre, University Hospitals Bristol and Weston NHS Foundation Trust, Bristol, UK
| | - Peter Moran
- Bristol Adult Cystic Fibrosis Centre, University Hospitals Bristol and Weston NHS Foundation Trust, Bristol, UK
| | - Giles Fitch
- North West Midlands Cystic Fibrosis Centre, University Hospitals of North Midlands NHS Trust, Stoke-on-Trent, UK
| | - Michael Martin
- North West Midlands Cystic Fibrosis Centre, University Hospitals of North Midlands NHS Trust, Stoke-on-Trent, UK
| | - Angela McGowan
- North West Midlands Cystic Fibrosis Centre, University Hospitals of North Midlands NHS Trust, Stoke-on-Trent, UK
| | - Stephen Morrow
- North West Midlands Cystic Fibrosis Centre, University Hospitals of North Midlands NHS Trust, Stoke-on-Trent, UK
| | - Heather Seabridge
- North West Midlands Cystic Fibrosis Centre, University Hospitals of North Midlands NHS Trust, Stoke-on-Trent, UK
| | - Nicki Bush
- York Hull Adult Cystic Fibrosis Centre, Hull University Teaching Hospitals NHS Trust, Hull, UK
| | - Tracey Daniels
- York Hull Adult Cystic Fibrosis Centre, York Teaching Hospital NHS Foundation Trust, York, UK
| | - Katy Lee
- York Hull Adult Cystic Fibrosis Centre, York Teaching Hospital NHS Foundation Trust, York, UK
| | - Nicola Robson
- York Hull Adult Cystic Fibrosis Centre, York Teaching Hospital NHS Foundation Trust, York, UK
| | - Dejene Shiferaw
- York Hull Adult Cystic Fibrosis Centre, Hull University Teaching Hospitals NHS Trust, Hull, UK
| | - Dimah Sweis
- York Hull Adult Cystic Fibrosis Centre, York Teaching Hospital NHS Foundation Trust, York, UK
| | - Rebecca Thomas
- York Hull Adult Cystic Fibrosis Centre, York Teaching Hospital NHS Foundation Trust, York, UK
| | - Jayne Faulkner
- Oxford Adult Cystic Fibrosis Centre, Oxford University Hospitals NHS Foundation Trust, Oxford, UK
| | - William G Flight
- Oxford Adult Cystic Fibrosis Centre, Oxford University Hospitals NHS Foundation Trust, Oxford, UK
| | - Sarah Poole
- Oxford Adult Cystic Fibrosis Centre, Oxford University Hospitals NHS Foundation Trust, Oxford, UK
| | - Louise Warnock
- Oxford Adult Cystic Fibrosis Centre, Oxford University Hospitals NHS Foundation Trust, Oxford, UK
| | - Mark I Allenby
- Wessex Adult Cystic Fibrosis Service, University Hospital Southampton NHS Foundation Trust, Southampton, UK
| | - Mary Carroll
- Wessex Adult Cystic Fibrosis Service, University Hospital Southampton NHS Foundation Trust, Southampton, UK; Respiratory Biomedical Research Centre, University of Southampton, Southampton, UK
| | - Thomas V Daniels
- Wessex Adult Cystic Fibrosis Service, University Hospital Southampton NHS Foundation Trust, Southampton, UK; Respiratory Biomedical Research Centre, University of Southampton, Southampton, UK
| | - Helen Dunn
- Wessex Adult Cystic Fibrosis Service, University Hospital Southampton NHS Foundation Trust, Southampton, UK
| | - Julia A Nightingale
- Wessex Adult Cystic Fibrosis Service, University Hospital Southampton NHS Foundation Trust, Southampton, UK
| | - Elizabeth Shepherd
- Wessex Adult Cystic Fibrosis Service, University Hospital Southampton NHS Foundation Trust, Southampton, UK
| | - Chandra Ohri
- Leicester Adult Cystic Fibrosis Centre, University Hospitals of Leicester NHS Trust, Leicester, UK
| | - Jessica Gadsby
- Leicester Adult Cystic Fibrosis Centre, University Hospitals of Leicester NHS Trust, Leicester, UK
| | - Simon Range
- Leicester Adult Cystic Fibrosis Centre, University Hospitals of Leicester NHS Trust, Leicester, UK
| | - Darren Tature
- Leicester Adult Cystic Fibrosis Centre, University Hospitals of Leicester NHS Trust, Leicester, UK
| | - Helen L Barr
- Wolfson Adult Cystic Fibrosis Centre, Nottingham University Hospitals NHS Trust, Nottingham, UK
| | - Sophie Dawson
- Wolfson Adult Cystic Fibrosis Centre, Nottingham University Hospitals NHS Trust, Nottingham, UK
| | - Jane Dewar
- Wolfson Adult Cystic Fibrosis Centre, Nottingham University Hospitals NHS Trust, Nottingham, UK
| | - Bryony Miller
- Wolfson Adult Cystic Fibrosis Centre, Nottingham University Hospitals NHS Trust, Nottingham, UK
| | - Gauri Saini
- Wolfson Adult Cystic Fibrosis Centre, Nottingham University Hospitals NHS Trust, Nottingham, UK
| | - Penny Galey
- Adult Cystic Fibrosis Clinic, Norfolk and Norwich University Hospitals NHS Foundation Trust, Norwich, UK
| | - Jack Johnson
- Adult Cystic Fibrosis Clinic, Norfolk and Norwich University Hospitals NHS Foundation Trust, Norwich, UK
| | - Mark C Pasteur
- Adult Cystic Fibrosis Clinic, Norfolk and Norwich University Hospitals NHS Foundation Trust, Norwich, UK
| | - David Derry
- Derriford Hospital Adult Cystic Fibrosis Centre, University Hospitals Plymouth NHS Trust, Plymouth, UK
| | - Harriet Gledhill
- Derriford Hospital Adult Cystic Fibrosis Centre, University Hospitals Plymouth NHS Trust, Plymouth, UK
| | - Angharad Lawson
- Derriford Hospital Adult Cystic Fibrosis Centre, University Hospitals Plymouth NHS Trust, Plymouth, UK
| | - Michelle Thomas
- Derriford Hospital Adult Cystic Fibrosis Centre, University Hospitals Plymouth NHS Trust, Plymouth, UK
| | - David Waine
- Derriford Hospital Adult Cystic Fibrosis Centre, University Hospitals Plymouth NHS Trust, Plymouth, UK
| | - Josie Cunningham
- Cystic Fibrosis Unit, Frimley Health NHS Foundation Trust, Frimley, UK
| | - Annant Damani
- Cystic Fibrosis Unit, Frimley Health NHS Foundation Trust, Frimley, UK
| | - Alexandra Higton
- Cystic Fibrosis Unit, Frimley Health NHS Foundation Trust, Frimley, UK
| | | | - Charlotte Carolan
- Sheffield Adult Cystic Fibrosis Centre, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK
| | - Misbah Tahir
- Sheffield Adult Cystic Fibrosis Centre, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK
| | - Amanda Plummer
- Sheffield Adult Cystic Fibrosis Centre, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK
| | - Marlene Hutchings
- Sheffield Adult Cystic Fibrosis Centre, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK
| | - Frank P Edenborough
- Sheffield Adult Cystic Fibrosis Centre, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK
| | - Rachael Curley
- Sheffield Adult Cystic Fibrosis Centre, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK
| | - Martin J Wildman
- School of Health and Related Research (ScHARR), University of Sheffield, Sheffield, UK; Sheffield Adult Cystic Fibrosis Centre, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK.
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Bateman K, Egan RJ. OUP accepted manuscript. Br J Surg 2022; 109:481-482. [PMID: 35576378 DOI: 10.1093/bjs/znac033] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/06/2022] [Accepted: 01/12/2022] [Indexed: 11/13/2022]
Affiliation(s)
- K Bateman
- Health Education and Improvement Wales, Nantgarw, UK
| | - R J Egan
- Morriston Hospital, Swansea, UK
- Swansea University, Sketty Lane, Swansea, UK
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Bevan A, Hoo ZH, Totton N, Girling C, Davids IR, Whelan P, Antrobus S, Ainsworth J, Buchan I, Anderson A, Bourke S, Doe S, Echevarria C, Taylor J, Bell NJ, Bateman K, Jones C, Moran P, Fitch G, Martin M, McGowan A, Morrow S, Seabridge H, Bush N, Daniels T, Lee K, Robson N, Shiferaw D, Sweis D, Thomas R, Faulkner J, Flight WG, Poole S, Warnock L, Allenby MI, Carroll M, Daniels TV, Dunn H, Nightingale JA, Shepherd E, Ohri C, Gadsby J, Range S, Tature D, Barr HL, Dawson S, Dewar J, Miller B, Saini G, Galey P, Johnson J, Pasteur MC, Derry D, Gledhill H, Lawson A, Thomas M, Waine D, Cunningham J, Damani A, Higton A, Orchard C, Carolan C, Tahir M, Plummer A, Hutchings M, Edenborough FP, Curley R, Wildman MJ. Using a learning health system to understand the mismatch between medicines supply and actual medicines use among adults with cystic fibrosis. J Cyst Fibros 2021; 21:323-331. [PMID: 34565705 DOI: 10.1016/j.jcf.2021.09.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Revised: 09/01/2021] [Accepted: 09/04/2021] [Indexed: 10/20/2022]
Abstract
BACKGROUND Studies in separate cohorts suggest possible discrepancies between inhaled medicines supplied (median 50-60%) and medicines used (median 30-40%). We performed the first study that directly compares CF medicine supply against use to identify the cost of excess medicines supply. METHODS This cross-sectional study included participants from 12 UK adult centres with ≥1 year of continuous adherence data from data-logging nebulisers. Medicine supply was measured as medication possession ratio (MPR) for a 1-year period from the first suitable supply date. Medicine use was measured as electronic data capture (EDC) adherence over the same period. The cost of excess medicines was calculated as whole excess box(es) supplied after accounting for the discrepancy between EDC adherence and MPR with 20% contingency. RESULTS Among 275 participants, 133 (48.4%) were females and mean age was 30 years (95% CI 29-31 years). Median EDC adherence was 57% (IQR 23-86%), median MPR was 74% (IQR 46-96%) and the discrepancy between measures was median 14% (IQR 2-29%). Even with 20% contingency, mean potential cost of excess medicines was £1,124 (95% CI £855-1,394), ranging from £183 (95% CI £29-338) for EDC adherence ≥80% to £2,017 (95% CI £1,507-2,526) for EDC adherence <50%. CONCLUSIONS This study provides a conservative estimate of excess inhaled medicines supply cost among adults with CF in the UK. The excess supply cost was highest among those with lowest EDC adherence, highlighting the importance of adherence support and supplying medicine according to actual use. MPR provides information about medicine supply but over-estimates actual medicine use.
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Affiliation(s)
- Amanda Bevan
- Wessex Adult Cystic Fibrosis Service, University Hospital Southampton NHS Foundation Trust, Southampton, UK
| | - Zhe Hui Hoo
- School of Health and Related Research (ScHARR), University of Sheffield, Sheffield, UK; Sheffield Adult Cystic Fibrosis Centre, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK
| | - Nikki Totton
- School of Health and Related Research (ScHARR), University of Sheffield, Sheffield, UK
| | - Carla Girling
- School of Health and Related Research (ScHARR), University of Sheffield, Sheffield, UK
| | - India R Davids
- School of Health and Related Research (ScHARR), University of Sheffield, Sheffield, UK
| | - Pauline Whelan
- Centre for Health Informatics, University of Manchester, Manchester, UK
| | - Steven Antrobus
- Centre for Health Informatics, University of Manchester, Manchester, UK
| | - John Ainsworth
- Centre for Health Informatics, University of Manchester, Manchester, UK
| | - Iain Buchan
- Centre for Health Informatics, University of Manchester, Manchester, UK
| | - Alan Anderson
- Newcastle Adult Cystic Fibrosis Centre, The Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
| | - Stephen Bourke
- Newcastle Adult Cystic Fibrosis Centre, The Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
| | - Simon Doe
- Newcastle Adult Cystic Fibrosis Centre, The Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
| | - Carlos Echevarria
- Newcastle Adult Cystic Fibrosis Centre, The Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
| | - Jill Taylor
- Newcastle Adult Cystic Fibrosis Centre, The Newcastle upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, UK
| | - Nicholas J Bell
- Bristol Adult Cystic Fibrosis Centre, University Hospitals Bristol and Weston NHS Foundation Trust, Bristol, UK
| | - Kathryn Bateman
- Bristol Adult Cystic Fibrosis Centre, University Hospitals Bristol and Weston NHS Foundation Trust, Bristol, UK
| | - Carys Jones
- Bristol Adult Cystic Fibrosis Centre, University Hospitals Bristol and Weston NHS Foundation Trust, Bristol, UK
| | - Peter Moran
- Bristol Adult Cystic Fibrosis Centre, University Hospitals Bristol and Weston NHS Foundation Trust, Bristol, UK
| | - Giles Fitch
- North West Midlands Cystic Fibrosis Centre, University Hospitals of North Midlands NHS Trust, Stoke-on-Trent, UK
| | - Michael Martin
- North West Midlands Cystic Fibrosis Centre, University Hospitals of North Midlands NHS Trust, Stoke-on-Trent, UK
| | - Angela McGowan
- North West Midlands Cystic Fibrosis Centre, University Hospitals of North Midlands NHS Trust, Stoke-on-Trent, UK
| | - Stephen Morrow
- North West Midlands Cystic Fibrosis Centre, University Hospitals of North Midlands NHS Trust, Stoke-on-Trent, UK
| | - Heather Seabridge
- North West Midlands Cystic Fibrosis Centre, University Hospitals of North Midlands NHS Trust, Stoke-on-Trent, UK
| | - Nicki Bush
- York Hull Adult Cystic Fibrosis Centre, Hull University Teaching Hospitals NHS Trust, Hull, UK
| | - Tracey Daniels
- York Hull Adult Cystic Fibrosis Centre, York Teaching Hospital NHS Foundation Trust, York, UK
| | - Katy Lee
- York Hull Adult Cystic Fibrosis Centre, York Teaching Hospital NHS Foundation Trust, York, UK
| | - Nicola Robson
- York Hull Adult Cystic Fibrosis Centre, York Teaching Hospital NHS Foundation Trust, York, UK
| | - Dejene Shiferaw
- York Hull Adult Cystic Fibrosis Centre, Hull University Teaching Hospitals NHS Trust, Hull, UK
| | - Dimah Sweis
- York Hull Adult Cystic Fibrosis Centre, York Teaching Hospital NHS Foundation Trust, York, UK
| | - Rebecca Thomas
- York Hull Adult Cystic Fibrosis Centre, York Teaching Hospital NHS Foundation Trust, York, UK
| | - Jayne Faulkner
- Oxford Adult Cystic Fibrosis Centre, Oxford University Hospitals NHS Foundation Trust, Oxford, UK
| | - William G Flight
- Oxford Adult Cystic Fibrosis Centre, Oxford University Hospitals NHS Foundation Trust, Oxford, UK
| | - Sarah Poole
- Oxford Adult Cystic Fibrosis Centre, Oxford University Hospitals NHS Foundation Trust, Oxford, UK
| | - Louise Warnock
- Oxford Adult Cystic Fibrosis Centre, Oxford University Hospitals NHS Foundation Trust, Oxford, UK
| | - Mark I Allenby
- Wessex Adult Cystic Fibrosis Service, University Hospital Southampton NHS Foundation Trust, Southampton, UK
| | - Mary Carroll
- Wessex Adult Cystic Fibrosis Service, University Hospital Southampton NHS Foundation Trust, Southampton, UK; Respiratory Biomedical Research Centre, University of Southampton, Southampton, UK
| | - Thomas V Daniels
- Wessex Adult Cystic Fibrosis Service, University Hospital Southampton NHS Foundation Trust, Southampton, UK; Respiratory Biomedical Research Centre, University of Southampton, Southampton, UK
| | - Helen Dunn
- Wessex Adult Cystic Fibrosis Service, University Hospital Southampton NHS Foundation Trust, Southampton, UK
| | - Julia A Nightingale
- Wessex Adult Cystic Fibrosis Service, University Hospital Southampton NHS Foundation Trust, Southampton, UK
| | - Elizabeth Shepherd
- Wessex Adult Cystic Fibrosis Service, University Hospital Southampton NHS Foundation Trust, Southampton, UK
| | - Chandra Ohri
- Leicester Adult Cystic Fibrosis Centre, University Hospitals of Leicester NHS Trust, Leicester, UK
| | - Jessica Gadsby
- Leicester Adult Cystic Fibrosis Centre, University Hospitals of Leicester NHS Trust, Leicester, UK
| | - Simon Range
- Leicester Adult Cystic Fibrosis Centre, University Hospitals of Leicester NHS Trust, Leicester, UK
| | - Darren Tature
- Leicester Adult Cystic Fibrosis Centre, University Hospitals of Leicester NHS Trust, Leicester, UK
| | - Helen L Barr
- Wolfson Adult Cystic Fibrosis Centre, Nottingham University Hospitals NHS Trust, Nottingham, UK
| | - Sophie Dawson
- Wolfson Adult Cystic Fibrosis Centre, Nottingham University Hospitals NHS Trust, Nottingham, UK
| | - Jane Dewar
- Wolfson Adult Cystic Fibrosis Centre, Nottingham University Hospitals NHS Trust, Nottingham, UK
| | - Bryony Miller
- Wolfson Adult Cystic Fibrosis Centre, Nottingham University Hospitals NHS Trust, Nottingham, UK
| | - Gauri Saini
- Wolfson Adult Cystic Fibrosis Centre, Nottingham University Hospitals NHS Trust, Nottingham, UK
| | - Penny Galey
- Adult Cystic Fibrosis Clinic, Norfolk and Norwich University Hospitals NHS Foundation Trust, Norwich, UK
| | - Jack Johnson
- Adult Cystic Fibrosis Clinic, Norfolk and Norwich University Hospitals NHS Foundation Trust, Norwich, UK
| | - Mark C Pasteur
- Adult Cystic Fibrosis Clinic, Norfolk and Norwich University Hospitals NHS Foundation Trust, Norwich, UK
| | - David Derry
- Derriford Hospital Adult Cystic Fibrosis Centre, University Hospitals Plymouth NHS Trust, Plymouth, UK
| | - Harriet Gledhill
- Derriford Hospital Adult Cystic Fibrosis Centre, University Hospitals Plymouth NHS Trust, Plymouth, UK
| | - Angharad Lawson
- Derriford Hospital Adult Cystic Fibrosis Centre, University Hospitals Plymouth NHS Trust, Plymouth, UK
| | - Michelle Thomas
- Derriford Hospital Adult Cystic Fibrosis Centre, University Hospitals Plymouth NHS Trust, Plymouth, UK
| | - David Waine
- Derriford Hospital Adult Cystic Fibrosis Centre, University Hospitals Plymouth NHS Trust, Plymouth, UK
| | - Josie Cunningham
- Cystic Fibrosis Unit, Frimley Health NHS Foundation Trust, Frimley, UK
| | - Annant Damani
- Cystic Fibrosis Unit, Frimley Health NHS Foundation Trust, Frimley, UK
| | - Alexandra Higton
- Cystic Fibrosis Unit, Frimley Health NHS Foundation Trust, Frimley, UK
| | | | - Charlotte Carolan
- Sheffield Adult Cystic Fibrosis Centre, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK
| | - Misbah Tahir
- Sheffield Adult Cystic Fibrosis Centre, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK
| | - Amanda Plummer
- Sheffield Adult Cystic Fibrosis Centre, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK
| | - Marlene Hutchings
- Sheffield Adult Cystic Fibrosis Centre, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK
| | - Frank P Edenborough
- Sheffield Adult Cystic Fibrosis Centre, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK
| | - Rachael Curley
- Sheffield Adult Cystic Fibrosis Centre, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK
| | - Martin J Wildman
- School of Health and Related Research (ScHARR), University of Sheffield, Sheffield, UK; Sheffield Adult Cystic Fibrosis Centre, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, UK.
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Meredith R, Punnette D, Bateman K, Bell N, Cowman S. EPS2.01 Drug-induced liver injury from antibiotics administered to adult cystic fibrosis patients: is it a problem? A single-centre retrospective study. J Cyst Fibros 2021. [DOI: 10.1016/s1569-1993(21)01008-0] [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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Abstract
The growth of aquaculture over the past 50 years has been accompanied by the emergence of aquatic animal diseases, many of which have spread to become pandemic in countries or continents. An analysis of 400 emerging disease events in aquatic animals that were logged by the Centre for Environment, Fisheries and Aquaculture Science between 2002 and 2017 revealed that more than half were caused by viruses. However, in molluscs, most events were parasitic. Categorising these events indicated that the key processes underpinning emergence were the movement of live animals and host switching. Profiles of key pathogens further illustrate the importance of wild aquatic animals as the source of new infections in farmed animals. It is also clear that the spread of new diseases through the largescale movement of aquatic animals for farming, for food and for the ornamental trade has allowed many to achieve pandemic status. Many viral pathogens of fish (e.g. infectious salmon anaemia, viral haemorrhagic septicaemia) and shrimp (e.g. white spot syndrome virus) affect a large proportion of the global production of key susceptible species. Wild aquatic animal populations have also been severely affected by pandemic diseases, best exemplified by Batrachochytrium dendrobatidis, a fungal infection of amphibians, whose emergence and spread were driven by the movement of animals for the ornamental trade. Batrachochytrium dendrobatidis is now widespread in the tropics and subtropics and has caused local extinctions of susceptible amphibian hosts. Given the rising demand for seafood, aquacultural production will continue to grow and diseases will continue to emerge. Some will inevitably achieve pandemic status, having significant impacts on production and trade, unless there are considerable changes in global monitoring and the response to aquatic animal diseases.
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Moran P, Hull V, Bell N, Bateman K. P389 Massage therapy in an adult cystic fibrosis centre. J Cyst Fibros 2019. [DOI: 10.1016/s1569-1993(19)30681-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
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Moran P, Pilkington E, Bell N, Bateman K, Swingwood E. The development of oxygen and non-invasive ventilation pathways in an adult cystic fibrosis centre. Physiotherapy 2019. [DOI: 10.1016/j.physio.2018.11.216] [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: 10/27/2022]
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Hardy T, Dovell G, Hindle M, Bateman K, Desmond A. Physician Associates – Junior Doctors’ Perceptions Ahead of Deployment. Int J Surg 2017. [DOI: 10.1016/j.ijsu.2017.08.356] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Boyles T, Bamford C, Bateman K, Blumberg L, Dramowski A, Karstaedt A, Korsman S, le Roux D, Maartens G, Madhi S, Naidoo R, Nuttall J, Reubenson G, Taljaard J, Thomas J, van Zyl G, von Gottberg A, Whitelaw A, Mendelson M. Guidelines for the management of acute meningitis in children and adults in South Africa. ACTA ACUST UNITED AC 2015. [DOI: 10.1080/10158782.2013.11441513] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Affiliation(s)
- T.H. Boyles
- Federation of Infectious Diseases Societies of Southern Africa Working Group on Acute Meningitis in Children and Adults Infectious Diseases Society of Southern Africa
| | - C. Bamford
- Federation of Infectious Diseases Societies of Southern Africa Working Group on Acute Meningitis in Children and Adults Infectious Diseases Society of Southern Africa
| | - K. Bateman
- Federation of Infectious Diseases Societies of Southern Africa Working Group on Acute Meningitis in Children and Adults Infectious Diseases Society of Southern Africa
| | - L. Blumberg
- Federation of Infectious Diseases Societies of Southern Africa Working Group on Acute Meningitis in Children and Adults Infectious Diseases Society of Southern Africa
| | - A. Dramowski
- Federation of Infectious Diseases Societies of Southern Africa Working Group on Acute Meningitis in Children and Adults Infectious Diseases Society of Southern Africa
| | - A. Karstaedt
- Federation of Infectious Diseases Societies of Southern Africa Working Group on Acute Meningitis in Children and Adults Infectious Diseases Society of Southern Africa
| | - S. Korsman
- Federation of Infectious Diseases Societies of Southern Africa Working Group on Acute Meningitis in Children and Adults Infectious Diseases Society of Southern Africa
| | - D.M. le Roux
- Federation of Infectious Diseases Societies of Southern Africa Working Group on Acute Meningitis in Children and Adults Infectious Diseases Society of Southern Africa
| | - G. Maartens
- Federation of Infectious Diseases Societies of Southern Africa Working Group on Acute Meningitis in Children and Adults Infectious Diseases Society of Southern Africa
| | - S. Madhi
- Federation of Infectious Diseases Societies of Southern Africa Working Group on Acute Meningitis in Children and Adults Infectious Diseases Society of Southern Africa
| | - R. Naidoo
- Federation of Infectious Diseases Societies of Southern Africa Working Group on Acute Meningitis in Children and Adults Infectious Diseases Society of Southern Africa
| | - J. Nuttall
- Federation of Infectious Diseases Societies of Southern Africa Working Group on Acute Meningitis in Children and Adults Infectious Diseases Society of Southern Africa
| | - G. Reubenson
- Federation of Infectious Diseases Societies of Southern Africa Working Group on Acute Meningitis in Children and Adults Infectious Diseases Society of Southern Africa
| | - J. Taljaard
- Federation of Infectious Diseases Societies of Southern Africa Working Group on Acute Meningitis in Children and Adults Infectious Diseases Society of Southern Africa
| | - J. Thomas
- Federation of Infectious Diseases Societies of Southern Africa Working Group on Acute Meningitis in Children and Adults Infectious Diseases Society of Southern Africa
| | - G. van Zyl
- Federation of Infectious Diseases Societies of Southern Africa Working Group on Acute Meningitis in Children and Adults Infectious Diseases Society of Southern Africa
| | - A. von Gottberg
- Federation of Infectious Diseases Societies of Southern Africa Working Group on Acute Meningitis in Children and Adults Infectious Diseases Society of Southern Africa
| | - A. Whitelaw
- Federation of Infectious Diseases Societies of Southern Africa Working Group on Acute Meningitis in Children and Adults Infectious Diseases Society of Southern Africa
| | - M. Mendelson
- Federation of Infectious Diseases Societies of Southern Africa Working Group on Acute Meningitis in Children and Adults Infectious Diseases Society of Southern Africa
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Addy C, Symes M, Bell N, Bateman K, Nazareth D. WS09.2 Radiation exposure in adults with CF attending Bristol Adult CF Centre. J Cyst Fibros 2015. [DOI: 10.1016/s1569-1993(15)30053-9] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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13
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Addy C, Symes M, Bell N, Bateman K, Nazareth D. 254 The value of the routine annual review chest radiograph in adults with CF. J Cyst Fibros 2015. [DOI: 10.1016/s1569-1993(15)30429-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: 11/29/2022]
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14
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Cano I, Joiner C, Bayley A, Rimmer G, Bateman K, Feist SW, Stone D, Paley R. An experimental means of transmitting pancreas disease in Atlantic salmon Salmo salar L. fry in freshwater. J Fish Dis 2015; 38:271-281. [PMID: 25297529 DOI: 10.1111/jfd.12310] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [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: 05/02/2014] [Revised: 08/05/2014] [Accepted: 08/06/2014] [Indexed: 06/04/2023]
Abstract
A challenge model for pancreas disease in Atlantic salmon, Salmo salar L. fry, was developed comparing two salmonid alphavirus (SAV) subtypes: SAV1 and SAV5. Viral doses of 3 × 10(5) TCID50 mL(-1) for SAV1 and 3 × 10(4) for SAV5 were tested in triplicate tanks, each containing 450 salmon fry. Cumulative mortalities of 1.2% were recorded. Titres of virus recovered from the mortalities ranged from 10(2) to 10(7) TCID50 mL(-1) . Fry were sampled at 3, 5 and 7.5 weeks post-challenge. Sampling after 3 weeks revealed a high prevalence of infection in the absence of clinical signs, and infectious virus was recovered from 80% and 43% of sampled fry infected with SAV1 and SAV5, respectively. After 5 weeks pancreas, heart and red skeletal muscle lesions were generally observed, whilst degeneration in white skeletal muscle was observed only in fish infected with SAV1. In situ hybridisation confirmed the presence of viral genome in infected pancreas, heart and muscle. After 7.5 weeks, infectious virus (both isolates) was recovered from 13.3% of the fish sampled, with a viral titre of 10(2) TCID50 mL(-1) . Clearly, salmon fry are susceptible to SAV infection and pancreas disease.
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Affiliation(s)
- I Cano
- Aquatic Animal Disease, Centre for Environment, Fisheries and Aquaculture Science, The Nothe Weymouth, Dorset, UK
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15
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von Klemperer A, Bateman K, Owen J, Bryer A. Thrombolysis risk prediction: applying the SITS-SICH and SEDAN scores in South African patients. Cardiovasc J Afr 2015; 25:224-7. [PMID: 25629538 PMCID: PMC4241589 DOI: 10.5830/cvja-2014-043] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2013] [Accepted: 08/14/2014] [Indexed: 11/06/2022] Open
Abstract
At present, the only specific medical treatment for acute ischaemic stroke is intravenous administration of recombinant tissue plasminogen activator within 4.5 hours of stroke onset. In the last year, two scores for risk stratification of intracranial haemorrhage have been derived from multicentric European trial groups, the Safe Implementation of Treatment in Stroke - Symptomatic IntraCerebral Haemorrhage risk score (SITS-SICH) and the SEDAN score. The aim of this study was to pilot their use in a cohort of patients treated at a South African tertiary hospital. Prospectively collected data were used from a cohort of 41 patients who underwent thrombolysis at Groote Schuur Hospital from 2000 to 2012. Computerised tomography brain imaging was available for review in 23 of these cases. The SITS-SICH and SEDAN scores were then applied and risk prediction was compared with outcomes. Two patients suffered symptomatic intracranial haemorrhage (SICH), representing 4.9% (95% CI: 0-11.5%) of the cohort. This was comparable to the SICH rate in both the SITS-SICH (5.1%) and SEDAN (6.5%) cohorts. Patient scores in the Groote Schuur Hospital cohort appeared similar to those of the validation cohorts of both SITS-SICH and SEDAN. With increasing use of thrombolysis in a resource-constrained setting, these scores represent a potentially useful tool in patient selection of those most likely to benefit from intravenous thrombolysis, reducing risk for SICH and with the added benefit of curtailing cost.
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Affiliation(s)
- A von Klemperer
- Division of Neurology, Department of Medicine, Groote Schuur Hospital and University of Cape Town, South Africa.
| | - K Bateman
- Division of Neurology, Department of Medicine, Groote Schuur Hospital and University of Cape Town, South Africa
| | - J Owen
- Department of Radiology, Groote Schuur Hospital and University of Cape Town, South Africa
| | - A Bryer
- Division of Neurology, Department of Medicine, Groote Schuur Hospital and University of Cape Town, South Africa
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16
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Baker I, Addy C, Bateman K, Williams O, Bell N. 95 Susceptibility testing of isolates of Pseudomonas aeruginosa in patients with cystic fibrosis – Service evaluation. J Cyst Fibros 2014. [DOI: 10.1016/s1569-1993(14)60231-9] [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: 11/29/2022]
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17
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Bateman K, Phillips S, Bell N. 257 Development of parenthood website and pathway to support people with CF considering pregnancy and parenthood. J Cyst Fibros 2014. [DOI: 10.1016/s1569-1993(14)60392-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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18
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Williams D, Robinson J, Bateman K, Bell N. 242 In-house provision of a PICC/Midline service by the CF nursing team. J Cyst Fibros 2014. [DOI: 10.1016/s1569-1993(14)60377-5] [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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19
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Addy C, Bateman K, Bell N. 247 Diagnoses of cystic fibrosis liver disease in an adult cystic fibrosis centre. J Cyst Fibros 2013. [DOI: 10.1016/s1569-1993(13)60388-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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20
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Abstract
Sphaerothecum destruens is a significant intracellular parasite of fish which has caused disease and mortalities in cultured north American Chinook salmon Oncorhynchus tshawytscha and Atlantic salmon Salmo salar. Several hosts for S. destruens have been identified within the Salmonidae family, and the histopathology of the infection can differ between hosts. Recently, S. destruens has been associated with the most invasive cyprinid species in Europe, topmouth gudgeon Pseudorasbora parva. Accurate disease identification based on thorough descriptions of clinical signs and histopathology in this new range of hosts is thus paramount to support further epizootiological studies. In this study, the associated histopathology of S. destruens infection is described along with its pathogenesis in the endangered cyprinid sunbleak Leucaspius delineatus. Histological examination of 100 L. delineatus in a wild population in the south of England revealed the presence of S. destruens infections, with a prevalence of 5% with S. destruens, suggesting an over-dispersed distribution within the L. delineatus sample. Clinical signs of the infection were absent, but histological examination revealed the presence of both disseminated and nodular lesions in several organs.
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Affiliation(s)
- D Andreou
- School of Biosciences, Cardiff University, Cardiff CF10 3XQ, UK.
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21
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Bateman K, Coombs P, Noy DJ, Pearce JM, Wetton PD. Numerical Modeling and Column Experiments to Simulate the Alkaline Disturbed Zone Around a Cementitious Radioactive Waste Repository. ACTA ACUST UNITED AC 2011. [DOI: 10.1557/proc-506-605] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
ABSTRACTIn order to be able to describe the migration of an alkaline plume, coupled chemistry and flow computer models may be employed. A series of laboratory column experiments were conducted to test the capabilities of currently available coupled models to predict product solids and output fluid compositions as a function of time. The predictions did not replicate all the variations of Ca:Si observed during mineralogical analysis, probably due the unavailability of sufficient kinetic and thermodynamic data for the range of calcium silicate hydrates (CSH) phases of interest. However, the predictions do reproduce the variation of Ca:Si ratios with time and distance along the columns. A better understanding of the above processes will lead to greater confidence in predictive modelling of the migration of alkaline plumes away from the cementitious barriers of radioactive waste disposal facilities.
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Abstract
Traditionally there has been little formal leadership and management education in the core medical curriculum. The Department of Health has recently emphasised the development of clinical leadership within the NHS. In this article, trainees share their experience of the Master of Science in medical leadership and management postgraduate qualification.
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23
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Bateman K, Downey D, Teare T. Thoracic ultrasound for pleural effusion: Delays and cost associated with departmental scanning. Respir Med 2010; 104:612-4. [DOI: 10.1016/j.rmed.2009.12.014] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/21/2009] [Accepted: 12/27/2009] [Indexed: 10/19/2022]
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24
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Rizzo M, Moon J, Wilkinson M, Bateman K, Jermeland J, Schnell T. Ocular search of simulated roadway displays in drivers with constricted visual fields. J Vis 2010. [DOI: 10.1167/2.7.162] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
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25
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Rochelle CA, Camps AP, Long D, Milodowski A, Bateman K, Gunn D, Jackson P, Lovell MA, Rees J. Can CO2 hydrate assist in the underground storage of carbon dioxide? ACTA ACUST UNITED AC 2009. [DOI: 10.1144/sp319.14] [Citation(s) in RCA: 42] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
AbstractThe sequestration of CO2 in the deep geosphere is one potential method for reducing anthropogenic emissions to the atmosphere without necessarily incurring a significant change in our energy-producing technologies. Containment of CO2 as a liquid and an associated hydrate phase, under cool conditions, offers an alternative underground storage approach compared with conventional supercritical CO2 storage at higher temperatures. We briefly describe conventional approaches to underground storage, review possible approaches for using CO2 hydrate in CO2 storage generally, and comment on the important role CO2 hydrate could play in underground storage. Cool underground storage appears to offer certain advantages in terms of physical, chemical and mineralogical processes, which may usefully enhance trapping of the stored CO2. This approach also appears to be potentially applicable to large areas of sub-seabed sediments offshore Western Europe.
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Affiliation(s)
- C. A. Rochelle
- British Geological Survey, Keyworth, Nottingham NG12 5GG, UK
| | - A. P. Camps
- British Geological Survey, Keyworth, Nottingham NG12 5GG, UK
- Department of Geology, University of Leicester, Leicester LE1 7RH, UK
| | - D. Long
- British Geological Survey, Edinburgh EH9 3LA, UK
| | - A. Milodowski
- British Geological Survey, Keyworth, Nottingham NG12 5GG, UK
| | - K. Bateman
- British Geological Survey, Keyworth, Nottingham NG12 5GG, UK
| | - D. Gunn
- British Geological Survey, Keyworth, Nottingham NG12 5GG, UK
| | - P. Jackson
- British Geological Survey, Keyworth, Nottingham NG12 5GG, UK
| | - M. A. Lovell
- Department of Geology, University of Leicester, Leicester LE1 7RH, UK
| | - J. Rees
- British Geological Survey, Keyworth, Nottingham NG12 5GG, UK
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26
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Verner-Jeffreys DW, Pond MJ, Peeler EJ, Rimmer GSE, Oidtmann B, Way K, Mewett J, Jeffrey K, Bateman K, Reese RA, Feist SW. Emergence of cold water strawberry disease of rainbow trout Oncorynchus mykiss in England and Wales: outbreak investigations and transmission studies. Dis Aquat Organ 2008; 79:207-218. [PMID: 18589997 DOI: 10.3354/dao01916] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Cold water strawberry disease (CWSD), or red mark syndrome (RMS), is a severe dermatitis affecting the rainbow trout Oncorynchus mykiss. The condition, which presents as multifocal, raised lesions on the flanks of affected fish, was first diagnosed in Scotland in 2003 and has since spread to England and Wales. Results of field investigations indicated the condition had an infectious aetiology, with outbreaks in England linked to movements of live fish from affected sites in Scotland. Transmission trials confirmed these results, with 11 of 149 and 106 of 159 naive rainbow trout displaying CWSD-characteristic lesions 104 to 106 d after being cohabited with CWSD-affected fish from 2 farms (Farm B from England and Farm C from Wales, respectively). The condition apparently has a long latency, with the first characteristic lesions in the previously naive fish not definitively observed until 65 d (650 day-degrees) post-contact with affected fish. Affected fish from both outbreak investigations and the infection trial were examined for the presence of viruses, oomycetes, parasites and bacteria using a combination of techniques and methodologies (including culture-independent cloning of PCR-amplified bacterial 16S rRNA genes from lesions), with no potentially causative infectious agent consistently identified. The majority of the cloned phylotypes from both lesion and negative control skin samples were assigned to Acidovorax-like beta-Proteobacteria and Methylobacterium-like alpha-Proteobacteria.
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Affiliation(s)
- D W Verner-Jeffreys
- Cefas Weymouth Laboratory (CWL), Barrack Road, The Nothe, Weymouth, Dorset DT4 8UB, UK.
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27
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Jeffery KR, Bateman K, Bayley A, Feist SW, Hulland J, Longshaw C, Stone D, Woolford G, Way K. Isolation of a cyprinid herpesvirus 2 from goldfish, Carassius auratus (L.), in the UK. J Fish Dis 2007; 30:649-656. [PMID: 17958608 DOI: 10.1111/j.1365-2761.2007.00847.x] [Citation(s) in RCA: 38] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Haematopoietic necrosis virus [cyprinid herpesvirus 2 (CyHV-2)] was isolated during disease outbreaks in goldfish, Carassius auratus, at an ornamental fish retail site in southern England in 2004. Signs of disease included lethargy and inappetence and were first seen after water temperatures increased from 14-15 to 19-21 degrees C. External gross pathology included pale patches on the gills and skin and internally the spleen was enlarged, often with distinctive white nodules. The most prominent histopathological changes observed were necrotic lesions in the spleen and kidney and focal patches of necrosis in the gill lamellae. Necrotic cells often contained nuclei with marginated chromatin and pale intranuclear inclusions. Ultrastructural examination of the spleen tissue revealed typical herpesvirus-like particles measuring 100 nm in diameter. The virus was isolated from extracts of gill tissue in KF-1 cells at 20 degrees C and oligonucleotide primer sets were designed based on conserved gene sequences and used to amplify viral DNA by polymerase chain reaction (PCR). The PCR assays were then used to detect the virus in DNA extracted from tissues sampled during earlier disease investigations at the retail site owner's holding facility in 2002 and 2003 and stored at -70 degrees C since then. Polymerase gene-specific PCR amplification products obtained from tissue samples and from the virus isolated in cell culture shared 100% nucleotide sequence identity with the published sequence for CyHV-2.
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Affiliation(s)
- K R Jeffery
- Centre for Environment, Fisheries and Aquaculture Science, Weymouth Laboratory, The Nothe, Weymouth, Dorset, UK
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28
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Small HJ, Neil DM, Taylor AC, Bateman K, Coombs GH. A parasitic scuticociliate infection in the Norway lobster (Nephrops norvegicus). J Invertebr Pathol 2005; 90:108-17. [PMID: 16216262 DOI: 10.1016/j.jip.2005.08.008] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2005] [Revised: 08/11/2005] [Accepted: 08/15/2005] [Indexed: 10/25/2022]
Abstract
A histophagous ciliate infection was discovered in a number of Norway lobsters (Nephrops norvegicus) from the Clyde Sea Area, Scotland. Silver-carbonate staining of cultured ciliates revealed an oral apparatus and additional structural features that are morphologically similar to scuticociliates in the genus Mesanophrys, which are known to parasitize crustaceans. However, ribosomal DNA sequences (ITS1/5.8S/ITS2) of the ciliate were identical to Orchitophyra stellarum, a parasitic scuticociliate of sea stars with a different morphology from Mesanophrys spp. and to the ciliate from N. norvegicus. Associated pathology included degeneration and necrosis of the myocardial heart muscle, and large numbers of ciliates in the gill filaments.
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Affiliation(s)
- H J Small
- Division of Environmental and Evolutionary Biology, Institute of Biomedical and Life Sciences, University of Glasgow, Glasgow, G12 8QQ, Scotland, UK.
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29
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Kline J, Casale T, Busse W, Ballas Z, Mokhtarani M, Bromstead C, Seyfert-Margolis V, Asare A, Bateman K, Moss M, Townley R. Omalizumab plus rush immunotherapy (RIT) is more effective than RIT alone in preventing ragweed-induced seasonal allergic rhinitis (SAR) symptoms. J Allergy Clin Immunol 2005. [DOI: 10.1016/j.jaci.2004.12.840] [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: 11/24/2022]
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30
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Lyons BP, Stentiford GD, Green M, Bignell J, Bateman K, Feist SW, Goodsir F, Reynolds WJ, Thain JE. DNA adduct analysis and histopathological biomarkers in European flounder (Platichthys flesus) sampled from UK estuaries. Mutat Res 2004; 552:177-86. [PMID: 15288550 DOI: 10.1016/j.mrfmmm.2004.06.016] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/05/2004] [Revised: 04/26/2004] [Accepted: 04/29/2004] [Indexed: 11/29/2022]
Abstract
The presence of genotoxic and potentially carcinogenic chemical contaminants in the estuarine and coastal marine environment is well documented. In this study, European flounder (Platichthys flesus) sampled from eight UK estuaries were analysed for hepatic DNA adducts, using the 32P-postlabelling assay and liver histopathology as part of an on going survey to establish the health status of UK estuaries. Fish were collected from the estuaries Tyne, Mersey, Thames, Alde (reference site), Belfast, Forth, Clyde and Southampton. At the majority of contaminated sites (Southampton, Thames, Clyde, Tyne and Mersey) the predominant DNA adduct profile consisted of diagonal radioactive zones (DRZs). In contrast, flounder collected from the Forth, Alde and Belfast lacked DRZs with only background levels of DNA damage being observed. Statistically significant differences were observed between several of the sites sampled with the hepatic DNA adduct levels detected in flounder from Southampton, Thames and Clyde statistically elevated (P < 0.05) over those levels detected at the Tyne (Southampton and Thames only), Forth, Alde and Belfast. Histological analysis of these samples revealed a range of lesions including foci of cellular alteration, hepatocellular fibrillar inclusions, nuclear pleomorphisms along with non-toxicopathic changes/alterations, such as those associated with cell turnover (apoptosis, necrosis, regeneration) and immune-related functions (melanomacrophage aggregates, inflammation). Although it is difficult to associate higher prevalence of these lesion types with specific sites, generally, the lowest prevalence was seen in flounder captured from the Alde estuary, with higher prevalence (particularly of melanomacrophage aggregates, inflammation and necrotic foci) seen in fish from the contaminated sites.
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Affiliation(s)
- B P Lyons
- Lowestoft Laboratory, The Centre for Environment, Fisheries and Aquaculture Science, Pakefield Road, Lowestoft, Suffolk NR33 0HT, UK.
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31
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Stentiford GD, Bateman K, Feist SW. Pathology and ultrastructure of an intranuclear bacilliform virus (IBV) infecting brown shrimp Crangon crangon (Decapoda: Crangonidae). Dis Aquat Organ 2004; 58:89-97. [PMID: 15109130 DOI: 10.3354/dao058089] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
The brown shrimp Crangon crangon supports an important fishery in Europe (over 25000 t, valued at 80 million euros in 2000). Through the course of histopathological screening of crustaceans from the Clyde estuary, western Scotland, for the biological effect of contaminants, we have discovered a highly prevalent (up to 100%) non-occluded intranuclear bacilliform virus (IBV) infection in the hepatopancreatic tubule epithelia and midgut epithelia of wild C. crangon. This is the first report of an IBV in this family. We have termed this virus Crangon crangon bacilliform virus (CcBV). Histological and ultrastructural observations suggest that this virus is similar to other IBVs previously described from crabs and penaeid shrimps. The nuclei of virus-infected epithelial cells contained an eosinophilic, hypertrophied viroplasm that marginalised the chromatin of the host nucleus. Infected cells were often separated from their neighbouring cells and their nuclei appeared apoptotic. In heavily infected shrimp, apoptotic cells were expelled into the lumen of the hepatopancreatic tubule or the midgut. Following this stage, some hepatopancreatic tubules became degenerate, with remnants of the basement membrane and myoepithelial lining remaining. Transmission electron microscopy of hypertrophic nuclei revealed the presence of rod-shaped and cylindrical, envelope-bound virions. These virions did not form arrays and were not embedded within occlusion bodies, but did appear to be partially occluded in an amorphous matrix that corresponded to a granular viroplasm. The ultrastructure, morphology and size of the nucleocapsid and the complete virion aligns the virus most closely to the IBVs previously reported from other decapod crustaceans. Due to the pathological manifestation of IBV infection in C. crangon, it appears likely that it can act as a population modulator, particularly at sites where infection prevalence is high, such as that observed in the Clyde estuary.
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Affiliation(s)
- G D Stentiford
- Centre for Environment, Fisheries and Aquaculture Science (CEFAS), Barrack Road, Weymouth, Dorset DT4 8UB, UK.
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32
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Stentiford GD, Evans M, Bateman K, Feist SW. Co-infection by a yeast-like organism in Hematodinium-infected European edible crabs Cancer pagurus and velvet swimming crabs Necora puber from the English Channel. Dis Aquat Organ 2003; 54:195-202. [PMID: 12803383 DOI: 10.3354/dao054195] [Citation(s) in RCA: 19] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/24/2023]
Abstract
During the winter months, edible crabs Cancer pagurus and velvet swimming crabs Necora puber from the English Channel can harbour infections by a Hematodinium sp. dinoflagellate. This parasite is responsible for a highly pathological condition known as 'Pink Crab Disease' (PCD) in the edible crab. In the current study, a high proportion (between 25 and 100%) of Hematodinium-infected edible and velvet swimming crabs captured from 2 sites in the English Channel also harboured a systemic infection by a yeast-like organism. This is the first report of such an infection in crabs. Budding yeast-like cells were observed intracellularly in circulating haemocytes and free in the host plasma. These cells stained positively with silver and periodic acid-Schiff (PAS) reactions. Despite an apparent haemocytopoenia in Hematodinium-infected crabs, haemocytic encapsulation of yeast-like cells was evident, while no such response was observed against Hematodinium sp. plasmodia. It is hypothesised that Hematodinium infection in these crabs may either increase the likelihood of secondary infections via an indirect suppression of the host immune system, or alternatively, decrease the likelihood of competitive growth inhibition by stimulating the host immune system to encapsulate and destroy secondary pathogens. Results are discussed with regard to the likely identity of the yeast-like organism, and the role of secondary pathogens in the eventual mortality of Hematodinium-infected hosts.
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Affiliation(s)
- G D Stentiford
- Centre for Environment, Fisheries and Aquaculture Science, Weymouth Laboratory, Barrack Road, The Nothe, Weymouth, Dorset DT4 8UB, United Kingdom.
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Wilson R, Langan C, Ball P, Bateman K, Pypstra R. Oral gemifloxacin once daily for 5 days compared with sequential therapy with i.v. ceftriaxone/oral cefuroxime (maximum of 10 days) in the treatment of hospitalized patients with acute exacerbations of chronic bronchitis. Respir Med 2003; 97:242-9. [PMID: 12645831 DOI: 10.1053/rmed.2003.1435] [Citation(s) in RCA: 37] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
In a randomized, open-label, controlled, multicentre study, the clinical and bacteriological efficacy, safety and tolerability of oral gemifloxacin (320 mg once daily, 5 days) was compared with sequential intravenous (i.v.) ceftriaxone (1 g once daily, maximum 3 days) followed by oral cefuroxime axetil (500 mg twice daily, maximum 7 days) in adult hospitalized patients with acute exacerbations of chronic bronchitis (AECB) (n = 274). The clinical success rates at follow-up (21-28 days post-therapy) in the clinical per-protocol population (the primary endpoint) were 86.8% (105/121) for gemifloxacin vs. 81.3% (91/112) for ceftriaxone/cefuroxime (treatment difference = 5.5,95% CI -3.9,14.9). The corresponding clinical results in the clinical intention-to-treat (ITT) population were 82.6% (114/138) vs. 72.1% (98/136), respectively (treatment difference = 10.5,95% CI 0.7, 20.4).Thus, gemifloxacin had significantly higher clinical success rates than ceftriaxone/cefuroxime. The median time to discharge was 9 days in the gemifloxacin group vs. 11 days in the ceftriaxone/cefuroxime group (P = 0.04, Wilcoxon test). At follow-up, 120/138 (87.0%) gemifloxacin-treated patients had been discharged from hospital, compared with 111/136 (81.6%) ceftriaxone/cefuroxime-treated patients in the clinical ITT population. Both treatments were generally well tolerated and there was no significant difference between the treatment groups in the incidence or type of adverse events reported. A 5-day course of oral gemifloxacin was shown by this study to be at least equivalent to sequential i.v. ceftriaxone/cefuroxime axetil (for up to 10 days) in patients with AECB who require hospital treatment.
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Affiliation(s)
- R Wilson
- Royal Brompton Hospital, London, U.K.
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Stentiford GD, Green M, Bateman K, Small HJ, Neil DM, Feist SW. Infection by a Hematodinium-like parasitic dinoflagellate causes Pink Crab Disease (PCD) in the edible crab Cancer pagurus. J Invertebr Pathol 2002; 79:179-91. [PMID: 12133707 DOI: 10.1016/s0022-2011(02)00028-9] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
The edible crab (Cancer pagurus) supports a large and valuable fishery in UK waters. Much of the catch is transported live to continental Europe in specially designed live-well ('vivier') vehicles. During the winter of 2000/2001, many trap-caught crabs from Guernsey, Channel Islands, UK, were reportedly moribund and pink in colour. These crabs generally died before and during vivier transportation. We provide histological, immunological, and molecular evidence that this condition is associated with infection by a Hematodinium-like dinoflagellate parasite similar to that previously reported in C. pagurus and to an infection causing seasonal mass mortalities of the Norway lobster (Nephrops norvegicus). Pathologically, every altered host bore the infection, which was characterised by very large numbers of plasmodial and vegetative stages in the haemolymph and depletion of reserve cells in the hepatopancreas. Due to the hyperpigmentation of the carapace and appendages, we have called this infection 'Pink Crab Disease' (PCD). Similar Hematodinium infections cause 'Bitter Crab Disease' in tanner and snow crabs, which has had a negative effect on their marketability. At present, little is known about the seasonality, transmission, and market impact of this infection in C. pagurus.
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Affiliation(s)
- G D Stentiford
- Centre for Environment, Fisheries and Aquaculture Science Weymouth Laboratory, Barrack Road, The Nothe, Weymouth, Dorset DT4 8UB, UK.
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Lario PI, Bobechko B, Bateman K, Kelly J, Vrielink A, Huang Z. Purification and characterization of the human PDE4A catalytic domain (PDE4A330-723) expressed in Sf9 cells. Arch Biochem Biophys 2001; 394:54-60. [PMID: 11566027 DOI: 10.1006/abbi.2001.2513] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The human PDE4A catalytic domain (PDE4A330-723) expressed in Sf9 cells was found to be heavily phosphorylated on both serines of the conserved SPS motif by mass spectrometric analysis. The purified protein exists as a tetramer at a concentration approximately 1 mg/ml from light scattering measurement and has a Km of 2 microM in hydrolyzing cAMP. In comparison, a partially purified PDE4A330-723 expressed in Escherichia coli has an apparent Km of 10 microM. The EC50 values for the Mg2+- or Co2+-mediated cAMP hydrolysis between the two enzymes differed by less than twofold. In addition, both enzymes exhibit similar sensitivities toward inhibition by a diverse set of inhibitors. Together with the fact that its adjacent peptide was covalently labeled by an electrophilic cAMP analogue, these results support that the SPS motif is not part of but is positioned near the active site. An efficient purification protocol that provides a highly purified PDE4A catalytic domain suitable for crystallization study is described.
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Affiliation(s)
- P I Lario
- Department of Biochemistry, McGill University, 3655 Promenade Sir-William-Osler, Room 802, McIntyre Medical Sciences Building, Montreal, Quebec, H3G 1Y6, Canada
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Chauret N, Dobbs B, Lackman RL, Bateman K, Nicoll-Griffith DA, Stresser DM, Ackermann JM, Turner SD, Miller VP, Crespi CL. The use of 3-[2-(N,N-diethyl-N-methylammonium)ethyl]-7-methoxy-4-methylcoumarin (AMMC) as a specific CYP2D6 probe in human liver microsomes. Drug Metab Dispos 2001; 29:1196-200. [PMID: 11502727] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2023] Open
Abstract
Recently, a novel nonfluorescent probe 3-[2-(N,N-diethyl-N-methylammonium)-ethyl]-7-methoxy-4-methylcoumarin (AMMC), which produces a fluorescent metabolite AMHC (3-[2-(N,N-diethyl-N-methylammonium)ethyl]-7-hydroxy-4-methylcoumarin) was used with microsomes containing recombinant enzymes (rCYP) to monitor CYP2D6 inhibition in a microtiter plate assay. This article describes the studies that were performed in human liver microsomes (HLM) to establish the selectivity of AMMC toward CYP2D6. Metabolism studies in HLM showed that AMMC was converted to one metabolite identified by mass spectrometry as AMHC. Kinetic studies indicated an apparent K(m) of 3 microM with a V(max) of 20 pmol/min. mg of protein for the O-demethylation reaction. The O-demethylation of AMMC in HLM was inhibited significantly in the presence of a CYP2D6 inhibitory antibody. Using a panel of various HLM preparations (n = 12), a good correlation (r(2) = 0.95) was obtained between AMMC O-demethylation and bufuralol metabolism, a known CYP2D6 substrate, but not with probes for the other major xenobiotic metabolizing CYPs. Finally, only rCYP2D6 showed detectable metabolism in experiments conducted with rCYPs using AMMC at a concentration of 1.5 microM (near K(m)). However, at a concentration of 25 microM AMMC, rCYP1A also contributed significantly to the formation of AMHC. Knowing the experimental conditions under which AMMC was selective for CYP2D6, a microtiter assay was developed to study the inhibition of various compounds in HLM using the fluorescence of AMHC as an indication of CYP2D6 activity. The inhibition potential of various chemicals was found to be comparable to those determined using the standard CYP2D6 probe, bufuralol, which requires high-performance liquid chromatography separation for the analysis of its CYP2D6-mediated 1'-hydoxylated metabolite.
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Affiliation(s)
- N Chauret
- Merck Frosst Center for Therapeutic Research, C.P. 1005, Pointe-Claire-Dorval, Kirkland, Quebec, Canada H9R 4P8.
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Asante-Appiah E, Ball K, Bateman K, Skorey K, Friesen R, Desponts C, Payette P, Bayly C, Zamboni R, Scapin G, Ramachandran C, Kennedy BP. The YRD Motif Is a Major Determinant of Substrate and Inhibitor Specificity in T-cell Protein-tyrosine Phosphatase. J Biol Chem 2001; 276:26036-43. [PMID: 11352902 DOI: 10.1074/jbc.m011697200] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022] Open
Abstract
We have studied T-cell protein-tyrosine phosphatase (TCPTP) as a model phosphatase in an attempt to unravel amino acid residues that may influence the design of specific inhibitors. Residues 48--50, termed the YRD motif, a region that is found in protein-tyrosine phosphatases, but absent in dual-specificity phosphatases was targeted. YRD derivatives of TCPTP were characterized by steady-state kinetics and by inhibition studies with BzN-EJJ-amide, a potent inhibitor of TCPTP. Substitution of Asp(50) to alanine or Arg(49) to lysine, methionine, or alanine significantly affected substrate hydrolysis and led to a substantial decrease in affinity for BzN-EJJ-amide. The influence of residue 49 on substrate/inhibitor selectivity was further investigated by comparing subsite amino acid preferences of TCPTP and its R49K derivative by affinity selection coupled with mass spectrometry. The greatest effect on selectivity was observed on the residue that precedes the phosphorylated tyrosine. Unlike wild-type TCPTP, the R49K derivative preferred tyrosine to aspartic or glutamic acid. BzN-EJJ-amide which retains the preferred specificity requirements of TCPTP and PTP1B was equipotent on both enzymes but greater than 30-fold selective over other phosphatases. These results suggest that Arg(49) and Asp(50) may be targeted for the design of potent and selective inhibitors of TCPTP and PTP1B.
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Affiliation(s)
- E Asante-Appiah
- Department of Biochemistry and Molecular Biology, Merck Frosst Center for Therapeutic Research, Pointe-Claire-Dorval H9R 4P8, Canada.
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Tallam SK, Kerbler TL, Leslie KE, Bateman K, Johnson WH, Walton JS. Reproductive performance of postpartum dairy cows under a highly intervenient breeding program involving timed insemination and combinations of GnRH, prostaglandin F2alpha and human chorionic gonadotropin. Theriogenology 2001; 56:91-104. [PMID: 11467521 DOI: 10.1016/s0093-691x(01)00545-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Lactating Holstein cows (n=288) were grouped as pairs at parturition and randomly assigned to two treatments (control, C vs intervenient treatment, T). The reproductive management of the Group C cows (n=130) consisted of the intramuscular administration of 500 microg PGF2alpha analogue (PG) on Days 28 and 63 postpartum and breeding on the basis of estrus signs with the a.m.-p.m. rule after Day 63. Cows that were not bred by 77 d postpartum received another injection of PG and were bred at estrus or 84 h after PG treatment. Pregnancy diagnoses were perfomed by palpation of the uterus per rectum 42 to 48 d after AI. Cows in the T group (n=139) received intramuscular injections of 100 microg GnRH 14 d and PG 28 d after calving. On Day 56 postpartum, cows were given a second dose of GnRH followed by PG on Day 63 postpartum and a third GnRH injection 48 h after PG (OvSynch). Cows were inseminated at a fixed time (22+/-1 h) after GnRH. Five days after the fixed-time insemination cows were given 1500 IU hCG i.m.. Group C and T cows that returned to service or were diagnosed as non-pregnant continued to receive PG at intervals of 14 d with breeding at estrus or 84 h after the second PGF2alpha dose. A sustained increase in milk progesterone concentration was observed in 59.0% of T cows after GnRH administration on Day 14. A similar rise in milk progesterone concentrations was observed in 53.8% of C cows. The PG on Day 28 induced luteolysis more in Group T cows (53.2%) than in Group C cows (36.9%). The PG on Day 63 reduced milk progesterone concentrations to basal levels in 50.7% of T and 49.2% of Group C animals. The first service pregnancy rates (T, 40.3% vs C, 36.2%) and the overall pregnancy rates (all services, T, 83.5% vs C, 86.9%) were not different between the two groups. The two treatments did not differ in the interval from first service to pregnancy, calving to pregnancy or in calving interval, number of services per pregnancy or culling rates.
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Affiliation(s)
- S K Tallam
- Department of Animal and Poultry Science, University of Guelph, Ontario, Canada
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Rose P, Bateman K. Continuity in general practice. Continuity of care is not all or nothing. BMJ 2001; 322:737. [PMID: 11293424] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/19/2023]
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Ng GY, Bertrand S, Sullivan R, Ethier N, Wang J, Yergey J, Belley M, Trimble L, Bateman K, Alder L, Smith A, McKernan R, Metters K, O'Neill GP, Lacaille JC, Hébert TE. Gamma-aminobutyric acid type B receptors with specific heterodimer composition and postsynaptic actions in hippocampal neurons are targets of anticonvulsant gabapentin action. Mol Pharmacol 2001; 59:144-52. [PMID: 11125035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/18/2023] Open
Abstract
Gamma-aminobutyric acid (GABA) activates two qualitatively different inhibitory mechanisms through ionotropic GABA(A) multisubunit chloride channel receptors and metabotropic GABA(B) G protein-coupled receptors. Evidence suggests that pharmacologically distinct GABA(B) receptor subtypes mediate presynaptic inhibition of neurotransmitter release by reducing Ca2+ conductance, and postsynaptic inhibition of neuronal excitability by activating inwardly rectifying K+ (Kir) conductance. However, the cloning of GABA(B) gb1 and gb2 receptor genes and identification of the functional GABA(B) gb1-gb2 receptor heterodimer have so far failed to substantiate the existence of pharmacologically distinct receptor subtypes. The anticonvulsant, antihyperalgesic, and anxiolytic agent gabapentin (Neurontin) is a 3-alkylated GABA analog with an unknown mechanism of action. Here we report that gabapentin is an agonist at the GABA(B) gb1a-gb2 heterodimer coupled to Kir 3.1/3.2 inwardly rectifying K+ channels in Xenopus laevis oocytes. Gabapentin was practically inactive at the human gb1b-gb2 heterodimer, a novel human gb1c-gb2 heterodimer and did not block GABA agonism at these heterodimer subtypes. Gabapentin was not an agonist at recombinant GABA(A) receptors as well. In CA1 pyramidal neurons of rat hippocampal slices, gabapentin activated postsynaptic K+ currents, probably via the gb1a-gb2 heterodimer coupled to inward rectifiers, but did not presynaptically depress monosynaptic GABA(A) inhibitory postsynaptic currents. Gabapentin is the first GABA(B) receptor subtype-selective agonist identified providing proof of pharmacologically and physiologically distinct receptor subtypes. This selective agonism of postsynaptic GABA(B) receptor subtypes by gabapentin in hippocampal neurons may be its key therapeutic advantage as an anticonvulsant.
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Affiliation(s)
- G Y Ng
- Merck Frosst Center for Therapeutic Research, Kirkland, Canada.
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Bateman K. The art of physical diagnosis. JAMA 2000; 284:2721; author reply 2722. [PMID: 11105172] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
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Valle PS, Martin SW, Tremblay R, Bateman K. Factors associated with being a bovine-virus diarrhoea (BVD) seropositive dairy herd in the Møre and Romsdal County of Norway. Prev Vet Med 1999; 40:165-77. [PMID: 10423772 DOI: 10.1016/s0167-5877(99)00030-6] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
Factors associated with being a bovine-virus diarrhoea (BVD) seropositive dairy herd were studied in a case-control study of 314 dairy herds in the Møre and Romsdal County of Norway. Information was collected through a mailed questionnaire, and associations were modeled using conditional logistic regression after selecting variables by a best-subset procedure. Purchasing of animals, use of common pasture, herd-to-herd contact over pasture fences, purchasing cattle with insufficient health (about BVD) documentation, and not using dairy advisors were associated with higher risk. In addition, younger farmers were more likely to have a bovine-virus diarrhoea seropositive herd than older farmers. 'Other animal traffic', including use of common animal housing in the summer months and exchange of calves between farmers were also risk factors. Collectively, these factors could explain 51% of the seropositive herds.
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Affiliation(s)
- P S Valle
- Norwegian School of Veterinary Science, Oslo, Norway.
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Bateman K, Coombs P, Noy DJ, Pearce JM, Wetton P, Haworth A, Linklater C. Experimental simulation of the alkaline disturbed zone around a cementitious radioactive waste repository: numerical modelling and column experiments. ACTA ACUST UNITED AC 1999. [DOI: 10.1144/gsl.sp.1999.157.01.14] [Citation(s) in RCA: 11] [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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Anderson MA, Van Heeswijck R, West J, Bateman K, Lee M, Christeller JT, McDonald G, Heath RL. Proteinase inhibitors from Nicotiana alata enhance plant resistance to insect pests. J Insect Physiol 1997; 43:833-842. [PMID: 12770495 DOI: 10.1016/s0022-1910(97)00026-7] [Citation(s) in RCA: 45] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/23/2023]
Abstract
The ornamental tobacco (Nicotiana alata) produces one 6-kDa chymotrypsin inhibitor and four 6-kDa trypsin inhibitors from a single 40.3-kDa precursor protein. Three different approaches have been used to assess the potential of these proteinase inhibitors (PIs) in insect control. The first was an in-vitro approach in which all five inhibitors, the single chymotrypsin inhibitor or three of the four trypsin inhibitors were tested for their ability to inhibit gut protease activity in insects from four orders. The second approach was to incorporate the N. alata PIs in the artificial diet of the native budworm (Helicoverpa punctigera) and the black field cricket (Teleogryllus commodus). H. punctigera larvae and T. commodus nymphs had a significant (P<0.01) reduction in growth after ingestion of the PI and were more lethargic than insects on the control diet. Several of the H. punctigera larvae also failed to complete moulting at the third or fourth instar. The third approach was to express the N. alata PIs in transgenic tobacco under the control of the 35S CaMV promoter. When H. punctigera larvae were fed tobacco leaves expressing the N. alata PIs at 0.2% soluble protein, significant (P<0.01) differences in mortality and/or growth rate were observed.
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Affiliation(s)
- M A. Anderson
- The Plant Cell Biology Research Centre, School of Botany, University of Melbourne, Parkville, Australia
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Khazanovich N, Bateman K, Chernaia M, Michalak M, James M. Crystal structure of the yeast cell-cycle control protein, p13suc1, in a strand-exchanged dimer. Structure 1996; 4:299-309. [PMID: 8805536 DOI: 10.1016/s0969-2126(96)00034-2] [Citation(s) in RCA: 22] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/02/2023]
Abstract
BACKGROUND p13(suc1) from fission yeast is a member of the CDC28 kinase specific (CKS) class of cell-cycle control proteins, that includes CKS1 from budding yeast and the human homologues CksHs1 and CksHs2. p13(suc1) participates in the regulation of p34(cdc2), a cyclin-dependent kinase controlling the G1-S and the G2-M transitions of the cell cycle. The CKS proteins are believed to exert their regulatory activity by binding to the kinase, in which case their function may be governed by their conformation or oligomerization state. Previously determined X-ray structures of p13(suc1), CksHs1 and CksHs2 show that these proteins share a common fold but adopt different oligomeric states. Monomeric forms of p13(suc1) and CksHs1 have been solved. In addition, CksHs2 and p13(suc1) have been observed by X-ray crystallography in assemblies of strand-exchanged dimers. Analysis of various assemblies of the CKS proteins, as found in different crystal forms, should help to clarify their role in cell-cycle control. RESULTS We report the X-ray crystal structure of p13(suc1) to 1.95 A resolution in space group C2221. It is present in the crystals as a strand-exchanged dimer. The overall monomeric fold is preserved in each lobe of the dimer but a single beta-strand (Ile94-Asp102) is exchanged between the central beta-sheets of each molecule. CONCLUSIONS Strand exchange, which has been observed for p13(suc1) in two different space groups, and for CksHs2, is now confirmed to be an intrinsic feature of the CKS family. A switch between levels of assembly may serve to coordinate the function of the CKS proteins in cell-cycle control.
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Affiliation(s)
- N Khazanovich
- Medical Research Council Group in Protein Structure and Function, University of Alberta, Edmonton, Alberta, Canada T6G 2H7
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Burton JH, MacLeod GK, McBride BW, Burton JL, Bateman K, McMillan I, Eggert RG. Overall efficacy of chronically administered recombinant bovine somatotropin to lactating dairy cows. J Dairy Sci 1990; 73:2157-67. [PMID: 2229604 DOI: 10.3168/jds.s0022-0302(90)78896-0] [Citation(s) in RCA: 31] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Recombinant bST at daily dosages of 0, 10.3, 20.6, and 41.2 mg/d were injected for 266 d into 8, 10, 9, and 9 Holstein cows, respectively. Treatment effects of recombinant bST were assessed for milk production traits, BW, blood components, and health and reproductive variables. Data reported compare controls to all bST-treated cows. There was an average increase of 18% in 3.5% FCM for bST versus control cows. This increase resulted in enhanced feed efficiency for bST cows, as their DM intakes were not elevated above those of the control cows. Recovery of BW was similar between control and bST groups. Milk composition was unaffected except for a slight decrease in protein percentage during the first 9 wk of treatment, and an elevated SCC between wk 19 and 28. Blood parameters were not different between control and bST cows, except for hematocrit, which decreased with bST treatment. The only health and reproductive parameters affected by bST were mastitis and days open, which were increased in the highest dosage groups.
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Affiliation(s)
- J H Burton
- Department of Animal and Poultry Science, University of Guelph, Ontario, Canada
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Smart RG, Bateman K. The chromosomal and teratogenic effects of lysergic acid diethylamide: a review of the current literature. Can Med Assoc J 1968; 99:805-10. [PMID: 4878647 PMCID: PMC1945364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/12/2023]
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