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Franceschi A, Robinson MA, Owens D, Brownlee T, Ferrari Bravo D, Enright K. Reliability and sensitivity to change of post-match physical performance measures in elite youth soccer players. Front Sports Act Living 2023; 5:1173621. [PMID: 37521097 PMCID: PMC10374287 DOI: 10.3389/fspor.2023.1173621] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Accepted: 06/30/2023] [Indexed: 08/01/2023] Open
Abstract
Introduction To effectively monitor post-match changes in physical performance, valid, reliable and practical measures which are sensitive to change are required. This study aimed to quantify test-retest reliability and sensitivity to change of a range of physical performance measures recorded during an isometric posterior chain (IPC) lower-limb muscle test and a countermovement jump (CMJ) test. Methods Eighteen Italian Serie A academy soccer players performed three IPC repetitions per limb and five CMJ trials in 4 testing sessions. Test-retest reliability was evaluated between two testing sessions seven days apart using typical error of measurement, coefficient of variation and intraclass correlation coefficient. Sensitivity to change was assessed on two additional testing sessions performed before and immediately after a soccer match through Hedges' g effect size (g) and comparisons to typical error. Results Absolute reliability (coefficient of variations) ranged from 1.5 to 8.8%. IPC and CMJ measures demonstrated moderate to excellent relative reliability (intraclass correlation coefficients ranged from 0.70 to 0.98). A wide range of physical performance measures showed significant alterations post-match (p < 0.05; g: small to moderate). IPC peak force and torque, CMJ reactive strength index modified, CMJ eccentric forces (mean breaking force, mean deceleration force, peak force, force at zero velocity) and CMJ mean power measures had post-match changes greater than their typical variation, demonstrating acceptable sensitivity in detecting performance changes at post-match. Discussion IPC peak force and torque, CMJ reactive strength index modified, CMJ eccentric phase forces and CMJ mean power were found to be both reliable and sensitive to change, and thus may be appropriate for monitoring post-match neuromuscular performance in youth soccer population.
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Affiliation(s)
- Alberto Franceschi
- Sport Science and R&D Department, Juventus Football Club, Torino, Italy
- School of Sport and Exercise Sciences, Liverpool John Moores University, Liverpool, United Kingdom
| | - Mark A. Robinson
- School of Sport and Exercise Sciences, Liverpool John Moores University, Liverpool, United Kingdom
| | - Daniel Owens
- School of Sport and Exercise Sciences, Liverpool John Moores University, Liverpool, United Kingdom
| | - Thomas Brownlee
- School of Sport, Exercise and Rehabilitation Sciences, University of Birmingham, Birmingham, United Kingdom
| | | | - Kevin Enright
- School of Sport and Exercise Sciences, Liverpool John Moores University, Liverpool, United Kingdom
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Szubert AJ, Pollock KM, Cheeseman HM, Alagaratnam J, Bern H, Bird O, Boffito M, Byrne R, Cole T, Cosgrove CA, Faust SN, Fidler S, Galiza E, Hassanin H, Kalyan M, Libri V, McFarlane LR, Milinkovic A, O'Hara J, Owen DR, Owens D, Pacurar M, Rampling T, Skene S, Winston A, Woolley J, Yim YTN, Dunn DT, McCormack S, Shattock RJ. COVAC1 phase 2a expanded safety and immunogenicity study of a self-amplifying RNA vaccine against SARS-CoV-2. EClinicalMedicine 2023; 56:101823. [PMID: 36684396 PMCID: PMC9837478 DOI: 10.1016/j.eclinm.2022.101823] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 12/22/2022] [Accepted: 12/23/2022] [Indexed: 01/15/2023] Open
Abstract
Background Lipid nanoparticle (LNP) encapsulated self-amplifying RNA (saRNA) is well tolerated and immunogenic in SARS-CoV-2 seronegative and seropositive individuals aged 18-75. Methods A phase 2a expanded safety and immunogenicity study of a saRNA SARS-CoV-2 vaccine candidate LNP-nCoVsaRNA, was conducted at participating centres in the UK between 10th August 2020 and 30th July 2021. Participants received 1 μg then 10 μg of LNP-nCoVsaRNA, ∼14 weeks apart. Solicited adverse events (AEs) were collected for one week post-each vaccine, and unsolicited AEs throughout. Binding and neutralisating anti-SARS-CoV-2 antibody raised in participant sera was measured by means of an anti-Spike (S) IgG ELISA, and SARS-CoV-2 pseudoneutralisation assay. (The trial is registered: ISRCTN17072692, EudraCT 2020-001646-20). Findings 216 healthy individuals (median age 51 years) received 1.0 μg followed by 10.0 μg of the vaccine. 28/216 participants were either known to have previous SARS-CoV2 infection and/or were positive for anti-Spike (S) IgG at baseline. Reactogenicity was as expected based on the reactions following licensed COVID-19 vaccines, and there were no serious AEs related to vaccination. 80% of baseline SARS-CoV-2 naïve individuals (147/183) seroconverted two weeks post second immunization, irrespective of age (18-75); 56% (102/183) had detectable neutralising antibodies. Almost all (28/31) SARS-CoV-2 positive individuals had increased S IgG binding antibodies following their first 1.0 μg dose with a ≥0.5log10 increase in 71% (22/31). Interpretation Encapsulated saRNA was well tolerated and immunogenic in adults aged 18-75 years. Seroconversion rates in antigen naïve were higher than those reported in our dose-ranging study. Further work is required to determine if this difference is related to a longer dosing interval (14 vs. 4 weeks) or dosing with 1.0 μg followed by 10.0 μg. Boosting of S IgG antibodies was observed with a single 1.0 μg injection in those with pre-existing immune responses. Funding Grants and gifts from the Medical Research Council UKRI (MC_PC_19076), the National Institute for Health Research/Vaccine Task Force, Partners of Citadel and Citadel Securities, Sir Joseph Hotung Charitable Settlement, Jon Moulton Charity Trust, Pierre Andurand, and Restore the Earth.
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Affiliation(s)
| | - Katrina M. Pollock
- Department of Infectious Disease, Imperial College London, UK
- NIHR Imperial Clinical Research Facility and NIHR Imperial Biomedical Research Centre, London, UK
| | | | | | - Henry Bern
- cMRC Clinical Trials Unit at UCL, London, UK
| | - Olivia Bird
- St George's Vaccine Institute, Institute for Infection and Immunity, St George's University of London, UK
| | | | - Ruth Byrne
- Chelsea & Westminster Hospital, London, UK
| | - Tom Cole
- NIHR Imperial Clinical Research Facility and NIHR Imperial Biomedical Research Centre, London, UK
| | - Catherine A. Cosgrove
- St George's Vaccine Institute, Institute for Infection and Immunity, St George's University of London, UK
| | - Saul N. Faust
- NIHR Southampton Clinical Research Facility and Biomedical Research Centre, University Hospital Southampton NHS Foundation Trust, Southampton, UK
- Faculty of Medicine and Institute for Life Sciences, University of Southampton, Southampton, UK
| | - Sarah Fidler
- Department of Infectious Disease, Imperial College London, UK
| | - Eva Galiza
- St George's Vaccine Institute, Institute for Infection and Immunity, St George's University of London, UK
| | - Hana Hassanin
- Surrey Clinical Research Facility, Faculty of Health and Medical Sciences, University of Surrey, Guildford, UK
| | - Mohini Kalyan
- Department of Infectious Disease, Imperial College London, UK
| | - Vincenzo Libri
- dNIHR UCLH Clinical Research Facility and NIHR UCLH Biomedical Research Centre, London, UK
| | | | | | - Jessica O'Hara
- Department of Infectious Disease, Imperial College London, UK
| | - David R. Owen
- NIHR Imperial Clinical Research Facility and NIHR Imperial Biomedical Research Centre, London, UK
- Department of Brain Sciences, Imperial College London, London, UK
| | - Daniel Owens
- NIHR Southampton Clinical Research Facility and Biomedical Research Centre, University Hospital Southampton NHS Foundation Trust, Southampton, UK
- Faculty of Medicine and Institute for Life Sciences, University of Southampton, Southampton, UK
| | - Mihaela Pacurar
- NIHR Southampton Clinical Research Facility and Biomedical Research Centre, University Hospital Southampton NHS Foundation Trust, Southampton, UK
- Faculty of Medicine and Institute for Life Sciences, University of Southampton, Southampton, UK
| | - Tommy Rampling
- dNIHR UCLH Clinical Research Facility and NIHR UCLH Biomedical Research Centre, London, UK
| | - Simon Skene
- Surrey Clinical Research Facility, Faculty of Health and Medical Sciences, University of Surrey, Guildford, UK
| | - Alan Winston
- Department of Infectious Disease, Imperial College London, UK
| | - James Woolley
- Surrey Clinical Research Facility, Faculty of Health and Medical Sciences, University of Surrey, Guildford, UK
| | - Yee Ting N. Yim
- dNIHR UCLH Clinical Research Facility and NIHR UCLH Biomedical Research Centre, London, UK
| | | | | | | | - COVAC 1 Study Teaml
- cMRC Clinical Trials Unit at UCL, London, UK
- Department of Infectious Disease, Imperial College London, UK
- St George's Vaccine Institute, Institute for Infection and Immunity, St George's University of London, UK
- Chelsea & Westminster Hospital, London, UK
- NIHR Southampton Clinical Research Facility and Biomedical Research Centre, University Hospital Southampton NHS Foundation Trust, Southampton, UK
- Faculty of Medicine and Institute for Life Sciences, University of Southampton, Southampton, UK
- Surrey Clinical Research Facility, Faculty of Health and Medical Sciences, University of Surrey, Guildford, UK
- dNIHR UCLH Clinical Research Facility and NIHR UCLH Biomedical Research Centre, London, UK
- NIHR Imperial Clinical Research Facility and NIHR Imperial Biomedical Research Centre, London, UK
- Department of Brain Sciences, Imperial College London, London, UK
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Hodgson SH, Iveson P, Larwood J, Roche S, Morrison H, Cosgrove C, Galiza E, Ikram S, Lemm N, Mehdipour S, Owens D, Pacurar M, Schumacher M, Shaw RH, Faust SN, Heath PT, Pollard AJ, Emary KRW, Pollock KM, Lazarus R. Incidental findings in UK healthy volunteers screened for a COVID-19 vaccine trial. Clin Transl Sci 2022; 15:524-534. [PMID: 34670021 PMCID: PMC8652599 DOI: 10.1111/cts.13170] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2021] [Revised: 08/29/2021] [Accepted: 09/13/2021] [Indexed: 11/29/2022] Open
Abstract
The safety of novel therapeutics and vaccines are typically assessed in early phase clinical trials involving "healthy volunteers." Abnormalities in such individuals can be difficult to interpret and may indicate previously unrecognized medical conditions. The frequency of incidental findings (IFs) in healthy volunteers who attend for clinical trial screening is unclear. To assess this, we retrospectively analyzed data for 1838 "healthy volunteers" screened for enrolment in a UK multicenter, phase I/II severe acute respiratory syndrome-coronavirus 2 (SARS-COV-2) vaccine trial. Participants were predominantly White (89.7%, 1640/1828) with a median age of 34 years (interquartile range [IQR] = 27-44). There were 27.7% of participants (510/1838) who had at least one IF detected. The likelihood of identifying evidence of a potential, new blood-borne virus infection was low (1 in 238 participants) compared with identification of an elevated alanine transaminase (ALT; 1 in 17 participants). A large proportion of participants described social habits that could impact negatively on their health; 21% consumed alcohol in excess, 10% were current smokers, 11% described recreational drug use, and only 48% had body weight in the ideal range. Our data demonstrate that screening prior to enrollment in early phase clinical trials identifies a range of IFs, which should inform discussion during the consent process. Greater clarity is needed to ensure an appropriate balance is struck between early identification of medical problems and avoidance of exclusion of volunteers due to spurious or physiological abnormalities. Debate should inform the role of the trial physician in highlighting and advising about unhealthy social habits.
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Affiliation(s)
- Susanne H. Hodgson
- Centre for Clinical Vaccinology and Tropical MedicineThe Jenner InstituteUniversity of OxfordOxfordUK
| | - Poppy Iveson
- The University of Oxford Clinical Medical SchoolUniversity of OxfordOxfordUK
| | - Jessica Larwood
- The University of Oxford Clinical Medical SchoolUniversity of OxfordOxfordUK
| | - Sophie Roche
- The University of Oxford Clinical Medical SchoolUniversity of OxfordOxfordUK
| | - Hazel Morrison
- Centre for Clinical Vaccinology and Tropical MedicineThe Jenner InstituteUniversity of OxfordOxfordUK
| | | | - Eva Galiza
- Vaccine InstituteSt George’s University of LondonLondonUK
| | - Sabina Ikram
- Vaccine InstituteSt George’s University of LondonLondonUK
| | | | | | - Daniel Owens
- NIHR Southampton Clinical Research Facility and NIHR Southampton Biomedical Research CentreUniversity Hospital Southampton NHS Foundation TrustFaculty of Medicine and Institute for Life SciencesUniversity of SouthamptonSouthamptonUK
| | - Mihaela Pacurar
- NIHR Southampton Clinical Research Facility and NIHR Southampton Biomedical Research CentreUniversity Hospital Southampton NHS Foundation TrustFaculty of Medicine and Institute for Life SciencesUniversity of SouthamptonSouthamptonUK
| | | | - Robert H. Shaw
- Oxford Vaccine GroupDepartment of PaediatricsCentre for Clinical Vaccinology and Tropical MedicineNIHR Oxford Biomedical Research CentreUniversity of OxfordOxfordUK
| | - Saul N. Faust
- NIHR Southampton Clinical Research Facility and NIHR Southampton Biomedical Research CentreUniversity Hospital Southampton NHS Foundation TrustFaculty of Medicine and Institute for Life SciencesUniversity of SouthamptonSouthamptonUK
| | - Paul T. Heath
- Vaccine InstituteSt George’s University of LondonLondonUK
| | - Andrew J. Pollard
- Oxford Vaccine GroupDepartment of PaediatricsCentre for Clinical Vaccinology and Tropical MedicineNIHR Oxford Biomedical Research CentreUniversity of OxfordOxfordUK
| | - Katherine R. W. Emary
- Oxford Vaccine GroupDepartment of PaediatricsCentre for Clinical Vaccinology and Tropical MedicineNIHR Oxford Biomedical Research CentreUniversity of OxfordOxfordUK
| | | | - Rajeka Lazarus
- University Hospitals Bristol and Weston NHS Foundation TrustBristolUK
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4
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Lam CM, Owens D. 454 Impact Of COVID-19 Pandemic on Elective Theatre Productivity in Otolaryngology. Br J Surg 2021. [PMCID: PMC8524613 DOI: 10.1093/bjs/znab259.463] [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] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Aim COVID-19 has had a significant impact on otolaryngology surgery. There are new requirements to prepare patients for theatre however the impact on theatre productivity is unknown. This study aims to evaluate the impact of COVID-19 on elective theatre productivity. Method We conducted a retrospective evaluation of elective otolaryngology theatre lists. Ten consecutive theatre lists beginning on the final week of November 2019 and November 2020 were analysed. Dedicated emergency operation lists were excluded. Results There were fewer operating lists per working day in 2020 (0.9) compared to 2019 (2.0) and a higher percentage of operations cancelled (2020: 15.4%, 2019: 8.6%). Theatre lists finished significantly earlier in 2020 than in 2019 (2020 median: 97.5 minutes, 2019 median: 15.5 minutes; p = 0.00018). The percentage of theatre lists finishing over 60 minutes early was substantially greater than the national average of 23% (2020: 75%, 2019: 30%). The median pre-list delay was higher in 2020 than 2019 (2019: 20.5 minutes, 2020: 31.5 minutes; p = 0.14) whilst the median total delay was higher in 2019 compared to 2020 (2019: 20.5 minutes, 2020: 18 minutes; p = 0.21). Both results were not statistically significant. The commonest reason for delay in 2020 were COVID-19 related reasons such as awaiting test results, in 2019 the commonest reason was patient not being ready for theatre such as consent not completed. Conclusions COVID-19 has had a significant impact on theatre productivity and is currently the commonest cause of theatre list delay. The early theatre finishing time suggest that improvements can be made to improve theatre productivity.
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Affiliation(s)
- C M Lam
- Cardiff and Vale UHB, Cardiff, United Kingdom
| | - D Owens
- Cardiff and Vale UHB, Cardiff, United Kingdom
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5
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Monnier L, Colette C, Bonnet F, Owens D. Number Needed-to-Treat (NNT): Is it a necessary marker of therapeutic efficiency? Diabetes & Metabolism 2020; 46:261-264. [DOI: 10.1016/j.diabet.2020.01.004] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/20/2020] [Accepted: 01/26/2020] [Indexed: 01/10/2023]
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Monnier L, Colette C, Owens D. Calibration free continuous glucose monitoring (CGM) devices: Weighing up the benefits and limitations. Diabetes Metab 2019; 46:79-82. [PMID: 31520684 DOI: 10.1016/j.diabet.2019.101118] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/02/2019] [Accepted: 09/04/2019] [Indexed: 11/30/2022]
Affiliation(s)
- L Monnier
- Institute of Clinical Research, University of Montpellier, Montpellier, France.
| | - C Colette
- Institute of Clinical Research, University of Montpellier, Montpellier, France
| | - D Owens
- Diabetes Research Group, Cymru, Swansea University, Swansea, Wales, UK
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Jackow J, Hayashi R, Owens D, Perez-Lorenzo R, Hansen C, DeLorenzo D, Guo Z, Christiano A. 475 Targeting the JAK/STAT3 pathway with ruxolitinib for RDEB-cSCC therapy. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.07.525] [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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8
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Murphy N, Owens D, Hinds E, Nelson N. Blastic plasmacytoid dendritic cell neoplasm (BPDCN) in leukaemic phase without skin lesions: a diagnostic and management challenge. Pathology 2019; 51:439-441. [DOI: 10.1016/j.pathol.2018.11.016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2018] [Revised: 10/29/2018] [Accepted: 11/22/2018] [Indexed: 11/25/2022]
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Jackow J, Hansen C, Hayashi R, Owens D, Perez-Lorenzo R, Delorenzo D, Guo Z, Christiano A. 1039 Novel mouse model of recessive dystrophic epidermolysis bullosa-squamous cell carcinoma. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.03.1115] [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: 11/30/2022]
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Kim A, Owens D, Zhu Y, Bickers D. 772 Age-associated alterations in pro-inflammatory cytokine signaling as well as UV-induced DNA damage contribute to increased basal cell carcinoma (BCC) tumor burden in Ptch1+/-/SKH-1 mice. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.03.848] [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: 11/30/2022]
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Abstract
A national prospective study of tonsil and adenoid surgery between 2004 and 2015.
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Affiliation(s)
- ME Hopkins
- Department of Ear, Nose and Throat Surgery, University Hospital of Wales, Cardiff, UK
| | - AS Harris
- Department of Ear, Nose and Throat Surgery, University Hospital of Wales, Cardiff, UK
| | - JD Davids
- Cardiff and Vale University Health Board, Cardiff, UK
| | - D Owens
- Department of Ear, Nose and Throat Surgery, University Hospital of Wales, Cardiff, UK
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12
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Gwilym B, Owens D. Has a simplified, electronic referral system reduced outpatient waiting times for patients? Int J Surg 2018. [DOI: 10.1016/j.ijsu.2018.05.268] [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: 10/28/2022]
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Yap D, Goddard S, Ng M, Al-Hussaini A, Owens D. An animal tissue simulation assessing three directional displacement forces on five common tracheostomy securing techniques. Ann R Coll Surg Engl 2018; 100:459-463. [PMID: 29692192 PMCID: PMC6111910 DOI: 10.1308/rcsann.2018.0069] [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] [Accepted: 10/16/2017] [Indexed: 11/22/2022] Open
Abstract
Introduction Several methods of securing a tracheostomy tube have been described in the literature including using ties or tapes around the neck and suturing the plastic flange to the neck in various ways. However, there are no wet lab-based studies to objectively determine the force required to displace the tracheostomy tube using different securing techniques. Ours is the first animal tissue simulation study published in the literature. Methods A simulated tracheostomy stoma was created on a sheep neck model. A tracheostomy tube was inserted into the stoma and secured using various methods. Tension tests were conducted to significantly displace the tube from the stoma. Each technique was repeated six times on different sheep necks. All results were analysed using SPSS®. Results Repeat measurements indicated that the largest displacement forces come from an oblique direction while the lowest force values were found at the lateral angle. Averages of displacement showed that medially placed sutures required the largest forces in comparison with other securing methods. Wilcoxon signed-rank testing indicated that medial and continuous suture security resists displacement at forces that otherwise displace flange and interrupted sutures. Conclusions This study has shown that any type of securing suture requires a greater displacement force than the strap of the tracheostomy tube holder alone. Medially placed sutures require a greater displacement force than those placed laterally. Displacement in the lateral direction requires the least force in comparison with movement at perpendicular or oblique angles.
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Affiliation(s)
- D Yap
- Aneurin Bevan University Health Board, UK
| | - S Goddard
- Welsh Institute for Minimal Access Therapy, UK
| | - M Ng
- Cardiff and Vale University Health Board, UK
| | | | - D Owens
- Cardiff and Vale University Health Board, UK
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Jackow J, Perez-Lorenzo R, Hansen C, Owens D, Christiano A. 198 The JAK1/2 inhibitor ruxolitinib induces cell cycle arrest and apoptosis through inhibiting STAT3 phosphorylation in squamous cell carcinoma. J Invest Dermatol 2018. [DOI: 10.1016/j.jid.2018.03.203] [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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Kamhieh Y, Fox H, Healy S, Hallett E, Quine S, Owens D, Tomkinson A, Thomas C, Smith D, Ingrams D, Passant C, Pope L, Marnane C, Berry S. Total glossolaryngectomy cohort study (N = 25): Survival, function and quality of life. Clin Otolaryngol 2018; 43:1349-1353. [PMID: 29667326 DOI: 10.1111/coa.13121] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/07/2018] [Indexed: 11/28/2022]
Affiliation(s)
- Y Kamhieh
- Royal Glamorgan Hospital, Llantrisant, UK
| | - H Fox
- Royal Glamorgan Hospital, Llantrisant, UK
| | - S Healy
- Royal Gwent Hospital, Newport, UK
| | - E Hallett
- Royal Glamorgan Hospital, Llantrisant, UK
| | - S Quine
- University Hospital Wales, Cardiff, UK
| | - D Owens
- University Hospital Wales, Cardiff, UK
| | | | - C Thomas
- University Hospital Wales, Cardiff, UK
| | - D Smith
- Royal Glamorgan Hospital, Llantrisant, UK
| | | | | | - L Pope
- Morriston Hospital, Swansea, UK
| | | | - S Berry
- Royal Glamorgan Hospital, Llantrisant, UK
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Owens D, Bray G, Giangrande P, Collins P, Hay C, Gomperts E, Schroth P, Barrowcliffe T, Lee CA. Pharmacokinetics of Recombinant Factor VIII (Recombinate) Using One-stage Clotting and Chromogenic Factor VIII Assay. Thromb Haemost 2017. [DOI: 10.1055/s-0037-1614893] [Citation(s) in RCA: 38] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
SummaryIn a study designed to demonstrate the safety and pharmacokinetics of a recombinant factor VIII (Recombinate) manufactured in Andover, MA and Thousand Oaks, CA, two different methods of factor VIII assay (one-stage clotting and Chromogenic substrate) were compared in vivo. The study was performed in four centres in the UK: London, Oxford, Cardiff and Manchester. Two pharmacokinetic studies, at least one week apart, were performed in 30 patients with severe haemophilia A (VIII:C < 2 IU/dl). A dose of 50 IU/kg was administered with sampling pre-infusion, and +0.25, 0.5, 1, 3, 6, 9, 12 and 24 h post-infusion. The aggregate 60 pharmacokinetic study showed a half-life of 12.7 and 13.0 h (p = 0.28) and recovery of 127 and 161 IU/dl (p = 0.0001) using one-stage clotting or chromogenic substrate respectively. In a supplementary experiment, 20 post-infusion samples were re-assayed by 1-stage and chromogenic assay using two plasma (20th British plasma standard and an “in-house” pooled normal plasma) and two concentrate standards, derived from the same type, but different batch of infused concentrate (Recombinate) and pre-diluted in either individual pre-infusion sample or in pooled commercial haemophilic plasma. The use of the Recombinate concentrate standard overcame the significant difference in FVIII levels between 1-stage and chromogenic assay methods when a plasma standard was used (p <0.0001). It is concluded that where potency dosing designation is carried out by an assay system different to that used in the clinical situation, the use of the recombinant concentrate as a standard in post-infusion plasma samples is likely to give more reliable and reproducible results.
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Yap D, Goddard S, Ng M, Owens D. “Does it Matter Where I Put My Tracheostomy Secure Suture?” An Animal Tissue Simulation Lab Study on Dislodgement Force in Various Tracheostomy Securing Techniques. Int J Surg 2017. [DOI: 10.1016/j.ijsu.2017.08.230] [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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Hong A, Stokes B, Otahal P, Owens D, Burgess JR. Temporal trends in thyroid-stimulating hormone (TSH) and thyroid peroxidase antibody (ATPO) testing across two phases of iodine fortification in Tasmania (1995-2013). Clin Endocrinol (Oxf) 2017; 87:386-393. [PMID: 28500624 DOI: 10.1111/cen.13371] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/23/2016] [Revised: 04/25/2017] [Accepted: 05/07/2017] [Indexed: 10/19/2022]
Abstract
CONTEXT Tasmania is an island state of the Australian Commonwealth with a well-documented history of mild iodine deficiency. Between 2001 and 2009, Tasmania experienced two incremental phases of iodine fortification. OBJECTIVE To examine trends in thyroid-stimulating hormone (TSH) and thyroid peroxidase antibody (ATPO) testing and their relationship to different phases of iodine nutrition in the Tasmanian population between 1995 and 2013. DESIGN Retrospective longitudinal study. SETTING AND PARTICIPANTS The major primary care and largest public hospital pathology providers in Tasmania submitted data for all TSH and ATPO tests performed between 1995 and 2013. Data linkage methodology was used to determine trends in TSH and ATPO testing. RESULTS A total of 1.66 million TSH assessments, involving 389,910 individual patients, were performed in Tasmania between 1995 and 2013. There was approximately a fourfold increase in the overall rate of TSH testing during this period with the rate of incident TSH assessment remaining relatively stable over the study period. The incidence of overt suppression and elevation of TSH (TSH≤0.1 mIU/L and ≥10 mIU/L) declined 62.3% and 59.7%, respectively, with a trend for increased incidence of borderline TSH elevation ≥4.0 mIU/L. The incidence of thyroid autoimmunity as determined by the proportion of abnormal ATPO results remained stable, with the absolute number of positive test results increasing during the study period. CONCLUSION Iodine supplementation of this mildly iodine-deficient population was not associated with an obvious increase in incidence of overt thyroid dysfunction or autoimmunity. Whilst the volume of TSH testing increased over the study period, the increase was driven by patients undergoing follow-up TSH assessments.
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Affiliation(s)
- A Hong
- Department of Diabetes & Endocrinology, Royal Hobart Hospital, Hobart, Tasmania
- School of Medicine, University of Tasmania, Hobart, Tasmania
| | - B Stokes
- Menzies Institute for Medical Research, University of Tasmania, Hobart, Tasmania
| | - P Otahal
- Menzies Institute for Medical Research, University of Tasmania, Hobart, Tasmania
| | - D Owens
- School of Medicine, University of Tasmania, Hobart, Tasmania
- Diagnostic Services Pty Ltd, Hobart, Tasmania
| | - J R Burgess
- Department of Diabetes & Endocrinology, Royal Hobart Hospital, Hobart, Tasmania
- School of Medicine, University of Tasmania, Hobart, Tasmania
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Qian Y, Maruyama S, Kim H, Pollom E, Kumar K, Harris J, Chin A, Pitt A, Bendavid E, Owens D, Durkee B, Soltys S. Cost-Effectiveness of Radiation and Chemotherapy for High-Risk Low Grade Glioma. Int J Radiat Oncol Biol Phys 2017. [DOI: 10.1016/j.ijrobp.2017.06.098] [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: 11/30/2022]
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Owens D, Nuessly GS, Kendra PE, Colquhoun TA, Seal DR. Attraction, Oviposition Preferences, and Olfactory Responses of Corn-Infesting Ulidiidae (Diptera) to Various Host-Based Substrates. Environ Entomol 2017; 46:885-894. [PMID: 28520928 DOI: 10.1093/ee/nvx096] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [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: 11/28/2016] [Indexed: 06/07/2023]
Abstract
Fresh market sweet corn (Zea mays L., convar. saccharata var. rugosa, Poales: Poaceae) ears produced in Florida are damaged by the larvae of Euxesta stigmatias Loew, Euxesta eluta Loew, and Chaetopsis massyla Walker (Diptera: Ulidiidae) that renders ears unmarketable. No standard lure exists for monitoring these pests. Oviposition substrate and attractant bioassays were designed to identify attractive substrates for further semiochemical investigation. Frass from the fall armyworm, Spodoptera frugiperda J.E. Smith (Lepidoptera: Noctuidae), was more attractive than other ovipositional substrates tested for E. eluta and C. massyla, and resulted in greater ovipositional output. Tassel-derived armyworm frass was more attractive than leaf-derived frass for oviposition. Frass also resulted in greater oviposition output by two species. In attraction bioassays, frass was generally preferred over the corresponding corn tissue, and only C. massyla demonstrated a preference for silk-frass over tassel-frass. The most promising substrates were then evaluated by electroantennography (EAG) to quantify olfactory responses. Frass volatiles also elicited greater antennal responses than corn volatiles. With tassel-frass, greater amplitude EAG responses were recorded from immature E. eluta female antennae, while mature female E. stigmatias exhibited greater responses. Equivalent antennal response to silk-frass was observed from E. eluta. Overall, silk-frass elicited the greatest EAG responses among all three fly species. Our results indicate that armyworm frass is an important resource in the chemical ecology of corn-infesting silk flies, and this substrate warrants further investigation for potential attractants that may facilitate development of novel management tools for these pests.
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Affiliation(s)
- D Owens
- Everglades Research and Education Center, University of Florida, 3200 E. Palm Beach Rd., Belle Glade, FL 33430
- USDA-ARS Subtropical Horticulture Research Station, 13601 Old Cutler Rd., Miami, FL 33158
| | - G S Nuessly
- Everglades Research and Education Center, University of Florida, 3200 E. Palm Beach Rd., Belle Glade, FL 33430
| | - P E Kendra
- USDA-ARS Subtropical Horticulture Research Station, 13601 Old Cutler Rd., Miami, FL 33158
| | - T A Colquhoun
- Department of Environmental Horticulture, University of Florida, 1523 Fifield Hall, P.O. Box 110670, Gainesville, FL 32611
| | - D R Seal
- Tropical Research and Education Center, University of Florida, 18905 SW 280?St., Homestead, FL 33031
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Owens D, Montgomery WS, Narvaez TI, Deyrup MA, Kendra PE. Evaluation of Lure Combinations Containing Essential Oils and Volatile Spiroketals for Detection of Host-Seeking Xyleborus glabratus (Coleoptera: Curculionidae: Scolytinae). J Econ Entomol 2017; 110:1596-1602. [PMID: 28575468 DOI: 10.1093/jee/tox158] [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] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2017] [Indexed: 06/07/2023]
Abstract
The invasive redbay ambrosia beetle, Xyleborus glabratus Eichhoff (Coleoptera: Curculionidae: Scolytinae), vectors the fungal pathogen (Raffaelea lauricola) that causes laurel wilt, a disease responsible for widespread mortality of trees in the Lauraceae in the southeastern United States. Early detection of incipient vector populations may allow for management practices that could successfully mitigate damage. Developing new, highly effective attractants is a priority for improving sensitivity of early detection efforts. In this study, two field tests were conducted to evaluate combinations of commercially available bark and ambrosia beetle lures for enhanced attraction of host-seeking female X. glabratus. In addition, lures were compared for capture of nontarget scolytine beetles. In the first experiment, traps baited with a combination of cubeb oil, conophthorin, chalcogran, and ethanol captured greater numbers of X. glabratus than cubeb oil alone, the current standard attractant. However, this combination lure resulted in higher nontarget scolytine captures than with the cubeb lure. In the second field test, an oil enriched in the sesquiterpene α-copaene caught significantly more X. glabratus than other lures currently available for monitoring this pest. There were no differences in efficacy between cubeb oil lures produced by two different manufacturers, and a combination lure containing copaiba and cubeb oils did not increase captures over the cubeb lure alone. Results of these two tests suggest that increased sensitivity for detection of X. glabratus may be achieved with a multicomponent lure that incorporates α-copaene, spiroketals, and low release of ethanol.
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Affiliation(s)
- D Owens
- USDA-ARS, Subtropical Horticulture Research Station, 13601 Old Cutler Rd., Miami, FL 33158
| | - Wayne S Montgomery
- USDA-ARS, Subtropical Horticulture Research Station, 13601 Old Cutler Rd., Miami, FL 33158
| | - Teresa I Narvaez
- USDA-ARS, Subtropical Horticulture Research Station, 13601 Old Cutler Rd., Miami, FL 33158
| | - Mark A Deyrup
- Archbold Biological Station, P.O. Box 2057, Lake Placid, FL 33862
| | - Paul E Kendra
- USDA-ARS, Subtropical Horticulture Research Station, 13601 Old Cutler Rd., Miami, FL 33158
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Logan S, Ashpole N, Farley J, Owens D, Sonntag WE. Reduced igf-1 signaling alters sirtuins in hippocampus and affects learning and memory. Exp Gerontol 2017. [DOI: 10.1016/j.exger.2017.02.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Noyel G, Thomas R, Bhakta G, Crowder A, Owens D, Boyle P. Superimposition of eye fundus images for longitudinal analysis from large public health databases. Biomed Phys Eng Express 2017. [DOI: 10.1088/2057-1976/aa7d16] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Abstract
Premature atherosclerosis in diabetes accounts for much of the decreased life span. New treatments have reduced this risk considerably. This review explores the relationship among the disturbances in glucose, lipid, and bile salt metabolic pathways that occur in diabetes. In particular, excess nutrient intake and starvation have major metabolic effects, which have allowed us new insights into the disturbance that occurs in diabetes. Metabolic regulators such as the forkhead transcription factors, the farnesyl X transcription factors, and the fibroblast growth factors have become important players in our understanding of the dysregulation of metabolism in diabetes and overnutrition. The disturbed regulation of lipoprotein metabolism in both the intestine and the liver has been more clearly defined over the past few years, and the atherogenicity of the triglyceride-rich lipoproteins, and - in tandem - low levels of high-density lipoproteins, is seen now as very important. New information on the apolipoproteins that control lipoprotein lipase activity has been obtained. This is an exciting time in the battle to defeat diabetic atherosclerosis.
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Affiliation(s)
- GH Tomkin
- Diabetes Institute of Ireland, Beacon Hospital
- Trinity College, University of Dublin, Dublin, Ireland
- Correspondence: GH Tomkin, Diabetes Institute of Ireland, Beacon Hospital, Clontra, Quinns Road, Shankill, Dublin 18, Ireland, Email
| | - D Owens
- Diabetes Institute of Ireland, Beacon Hospital
- Trinity College, University of Dublin, Dublin, Ireland
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Mcleod R, Brahmabhatt P, Owens D. Tonsillectomy is not a procedure of limited value - the unseen costs of tonsillitis and quinsy on hospital bed consumption. Clin Otolaryngol 2016; 42:573-577. [PMID: 27754588 DOI: 10.1111/coa.12773] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/13/2016] [Indexed: 11/26/2022]
Abstract
OBJECTIVES To assess the impact of the introduction of the SIGN Clinical guidelines in 1999 and subsequent revision in 2005 on tonsillectomy, hospital admission with tonsillitis and peritonsillar abscess rates in four countries. METHODS Retrospective analysis using English, Welsh, Australian and New Zealand National healthcare hospital admission databases between 2000 and 2013. Primary outcomes measures included tonsillectomy rates and hospital admission rates for tonsillitis and peritonsillar abscess. Secondary outcome measures included bed-day usage in England and Wales. Linear forecasting was used to identify the potential impact of any trends. RESULTS Following guideline introduction for tonsillectomy, a significant decline in tonsillectomy rates in England (P < 0.01) and Wales (P < 0.05) was seen. Hospital admissions for acute tonsil infections increased in England (P < 0.01) and Wales (P < 0.01). In Australia and New Zealand, tonsillectomy and admission for tonsillitis rates both increased (P < 0.01). During this time, the increased rate of admission for tonsillitis in England and Wales was significantly greater than Australasia (P < 0.01). CONCLUSIONS Following the introduction of these Clinical guidelines, there was a decrease in the rate of tonsillectomy in England and Wales and a presumed associated increase in admissions with tonsillitis. This did not occur in Australasia where tonsillectomy rates rose over time. If these trends continue, it is likely that they will have a significant deleterious impact on healthcare spending in the future.
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Affiliation(s)
- R Mcleod
- University Hospital of Wales, Cardiff, UK
| | | | - D Owens
- University Hospital of Wales, Cardiff, UK
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Pollom E, Lee K, Durkee B, Grade M, Mokhtari D, Weeks B, Feng M, Wahl D, Kothary N, Koong A, Owens D, Goldhaber-Fiebert J, Chang D. Cost-Effectiveness of Local Therapies for Inoperable, Localized Hepatocellular Carcinoma. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.938] [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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Harris A, Krieger E, Kim M, Cawley P, Owens D, Hamilton-Craig C, Maki J, Otto C. Prediction of Clinical Outcomes in Chronic Aortic and Mitral Regurgitation Using Echocardiographic and Cardiac Magnetic Resonance Measures of Regurgitant Severity and Ventricular Size. Heart Lung Circ 2016. [DOI: 10.1016/j.hlc.2016.06.571] [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
Is there a relationship between daycase rates and waiting list times?
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Affiliation(s)
| | - H Walijee
- Cardiff and Vale University Health Board
| | - D Owens
- Cardiff and Vale University Health Board
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Owens D, Nuessly GS, Seal DR, Colquhoun TA. Variable Pyrethroid Susceptibility Among the Sweet Corn-Infesting Ulidiidae (Diptera) in Florida and New Baseline Susceptibilities. J Econ Entomol 2016; 109:1283-1288. [PMID: 27037458 DOI: 10.1093/jee/tow054] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/16/2015] [Accepted: 02/26/2016] [Indexed: 06/05/2023]
Abstract
Florida sweet corn is intensively treated to prevent infestation from the corn-infesting picture-winged fly complex (hereafter referred to as silk flies, Diptera: Ulidiidae). Previous bioassays performed on Euxesta stigmatias Loew demonstrated some pyrethroids performed weakly, while others were more efficacious and with longer-lasting residual activity. Since the last published bioassays, new active ingredients have been made available, other species in the complex discovered, and label restrictions increased for some products. For these reasons, topical bioassays were performed on the three most common species to assess insecticide efficacy of current commercial products labeled for either silk fly or fall armyworm ( Spodoptera frugiperda (J.E. Smith), Lepidoptera: Noctuidae) control. Bioassays were conducted using formulated product mixed in water and applied using a Generation III Research Spray Booth. The median lethal concentration ratio (LC 50 ) of beta-cyfluthrin with and without the pyrethroid synergist piperonyl butoxide was investigated. Acetamiprid, chlorantraniliprole, carbaryl, and flubendiamide did not result in high mortality to any species tested. Euxesta eluta Loew was susceptible to all other insecticides tested, and exhibited the lowest LC 50 to beta-cyfluthrin. Both Chaetopsis massyla Walker and E. stigmatias recovered from several pyrethroid treatments. Euxesta stigmatias also had the highest beta-cyfluthrin LC 50 , and piperonyl butoxide restored beta-cyfluthrin efficacy and lowered the LC 50 s of all three species.
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Grounds R, Al-Hussaini A, Owens D. Predicting operative duration and implications for list planning: A retrospective analysis using multivariate statistics of data from 85 adults and 72 children undergoing tonsillectomy. Int J Surg 2015. [DOI: 10.1016/j.ijsu.2015.07.237] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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Al-Hussaini A, Xu R, Jones A, Owens D, Wei X. P7 Investigating the role of the novel cytokine IL-35 in the regulation of anti-tumour immunity against head and neck cancer. Oral Oncol 2015. [DOI: 10.1016/j.oraloncology.2015.02.055] [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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Monnier L, Colette C, Dejager S, Owens D. The dawn phenomenon in type 2 diabetes: How to assess it in clinical practice? Diabetes & Metabolism 2015; 41:132-7. [DOI: 10.1016/j.diabet.2014.10.002] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2014] [Revised: 10/02/2014] [Accepted: 10/02/2014] [Indexed: 11/28/2022]
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Earl K, Sakellariou G, Owens D, Sinclair M, Fenech M, Close G, Lawton C, Dye L, Beadsworth M, McArdle A. The Role of Cytokines in Muscle Fatigue in Patients with Chronic Fatigue Syndrome (CFS). FASEB J 2015. [DOI: 10.1096/fasebj.29.1_supplement.1055.34] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Kate Earl
- Institute of Ageing and Chronic Disease University of LiverpoolUnited Kingdom
| | - Giorgos Sakellariou
- Institute of Ageing and Chronic Disease University of LiverpoolUnited Kingdom
| | - Daniel Owens
- RISES Liverpool John Moores UniversityUnited Kingdom
| | - Melanie Sinclair
- Institute of Ageing and Chronic Disease University of LiverpoolUnited Kingdom
| | - Manuel Fenech
- Institute of Ageing and Chronic Disease University of LiverpoolUnited Kingdom
| | - Graeme Close
- RISES Liverpool John Moores UniversityUnited Kingdom
| | - Clare Lawton
- Psychological SciencesUniversity of LeedsUnited Kingdom
| | - Louise Dye
- Psychological SciencesUniversity of LeedsUnited Kingdom
| | - Micheal Beadsworth
- Institute of Ageing and Chronic Disease University of LiverpoolUnited Kingdom
| | - Anne McArdle
- Institute of Ageing and Chronic Disease University of LiverpoolUnited Kingdom
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Grounds R, Al-Hussaini A, Owens D. Predicting operative duration and implications for list planning: a retrospective analysis of data from 85 adults and 72 children undergoing tonsillectomy: Our Experience. Clin Otolaryngol 2015; 40:483-6. [PMID: 25715890 DOI: 10.1111/coa.12403] [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] [Accepted: 02/20/2015] [Indexed: 11/29/2022]
Affiliation(s)
- R Grounds
- Department of Otolaryngology, Head and Neck Surgery, University Hospital of Wales, Cardiff, UK.,Royal Glamorgan Hospital, Llantrisant, UK
| | - A Al-Hussaini
- Department of Otolaryngology, Head and Neck Surgery, University Hospital of Wales, Cardiff, UK
| | - D Owens
- Department of Otolaryngology, Head and Neck Surgery, University Hospital of Wales, Cardiff, UK
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Klungboonkrong V, Gurujala R, Owens D, McLennan G, Levitin A, Sands M, Karuppasamy K. Internal iliac artery branches: “how much do I remember?” Angiographic identification and intervention under various circumstances. J Vasc Interv Radiol 2015. [DOI: 10.1016/j.jvir.2014.12.470] [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: 10/24/2022] Open
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Thanassoulis G, Luk K, Schulz C, Engert J, Do R, Hindy G, Rukh G, Dufresne L, Almgren P, Owens D, Harris T, Peloso G, Kerr K, Wong Q, Smith A, Budoff M, Rotter J, Cupples L, Rich S, Kathiresan S, Orho-Melander M, Gudnason V, O'Donnell C, Post W, Smith J. GENETICALLY ELEVATED LOW-DENSITY LIPOPROTEIN CHOLESTEROL IS ASSOCIATED WITH AORTIC VALVE CALCIFICATION AND INCIDENT AORTIC STENOSIS: A MENDELIAN RANDOMIZATION STUDY. Can J Cardiol 2014. [DOI: 10.1016/j.cjca.2014.07.448] [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: 10/24/2022] Open
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Rackley T, Palaniappan N, Owens D, Evans M. Adjuvant treatment decisions for oropharyngeal cancer - is it time for a change? Clin Otolaryngol 2014; 39:316-21. [DOI: 10.1111/coa.12280] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/25/2014] [Indexed: 11/27/2022]
Affiliation(s)
| | | | - D. Owens
- University Hospital of Wales; Cardiff UK
| | - M. Evans
- Velindre Cancer Centre; Cardiff UK
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Abstract
INTRODUCTION Since the late 1990s, a number of factors have reduced the threshold for parathyroidectomy in patients with primary hyperparathyroidism. This study examined whether this has translated into increased numbers of parathyroid operations over the last decade. METHODS A retrospective analysis was performed of the Patient Episode Database for Wales and English Hospital Episode Statistics annual data from 2000 to 2010 for parathyroidectomy admissions per 100,000 population. Statistical analysis was by linear regression. RESULTS Between 2000 and 2010 there were 24,247 parathyroid operations in England and Wales (0.005% of the population), with 3 times as many women treated as men. Overall, incidence of parathyroidectomy rose from 3.3/100,000 population in 2000 to 5.8/100,000 in 2010 (p<0.0001). In England, it increased from 3.3/100,000 population to 5.8/100,000 and in Wales, it increased from 2.4/100,000 population to 4.6/100,000. Despite similar population demographics, the difference in the rate of change between England and Wales was significant (p<0.05). Uptake also varied according to age; in those aged 0-14 years, incidence of parathyroidectomy remained static whereas in all other age groups, uptake of parathyroidectomy increased significantly from 2000 to 2010. Most notably, surgical intervention in those aged 60-74 and >75 years nearly doubled over the decade (p<0.0001). CONCLUSIONS The incidence of parathyroidectomy in adults has increased significantly in the last decade in England and Wales. This likely reflects changes in population demography, available guidelines, lower threshold for referral, changing surgical approach and the realisation that surgical morbidity is now infrequent.
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Affiliation(s)
- L M Evans
- Department of Ear Nose and Throat Surgery, University Hospital of Wales, Cardiff, UK
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40
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Monnier L, Colette C, Dejager S, Owens D. Residual dysglycemia when at target HbA(1c) of 7% (53mmol/mol) in persons with type 2 diabetes. Diabetes Res Clin Pract 2014; 104:370-5. [PMID: 24735710 DOI: 10.1016/j.diabres.2014.03.012] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/17/2014] [Revised: 03/03/2014] [Accepted: 03/20/2014] [Indexed: 01/08/2023]
Abstract
AIMS To understand the composition of the residual dysglycemia when HbA1c is between 6.5% (48mmol/mol) and 7% (53mmol/mol), representing the definition of diabetes and the recommended treatment goal, respectively. METHODS One hundred persons with type 2 diabetes and a HbA1c<7% (53mmol/mol), treated with diet alone and/or oral hypoglycemic agents underwent continuous glucose monitoring (CGM) and were further divided into two subgroups 1 (n=50) and 2 (n=50) according to whether the HbA1c was <6.5% (48mmol/mol) or 6.5-6.9% (48-52mmol/mol), respectively. A similar analysis was performed in those on diet alone: subgroups A (n=34, HbA1c<6.5%, 48mmol/mol) and B (n=10, HbA1c 6.5-6.9%, 48-52mmol/mol). The residual dysglycemia determined from the CGM was assessed using glucose exposures defined as areas under curves (AUCs) and mean glucose values. RESULTS Averaged 2-h postprandial glucose value (averaged PPG, mmol/L, mean±SD) and postprandial glucose exposure (AUCpp, mean±SD, mmol·L(-1)·h) were significantly higher in subgroup 2 (mean HbA1c=6.7%, 50mmol/mol) than in subgroup 1 (mean HbA1c=6.0%, 42mmol/mol): averaged PPG=8.1±1.3 versus 7.3±1.3mmol/L (p<0.002); AUCpp=23.5±8.6 versus 16.2±8.6 (p<0.0001). The percentages of persons with averaged PPG≥7.8mmol/L were 52% and 24% (p<0.01) in subgroups 2 and 1, respectively. Similar results were observed in those (subgroups A and B) who were on diet alone. CONCLUSIONS The residual dysglycemia in type 2 diabetes with HbA1c between 6.5 and 6.9% (48-52mmol/mol) inclusive is mainly due to remnant abnormal postprandial glucose excursions. Consequently, HbA1c<6.5% (48mmol/mol) is an achievable goal with therapeutic measures aimed at reducing postmeal glucose when the HbA1c is at 7% (53mmol/mol).
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Affiliation(s)
- L Monnier
- Institute of Clinical Research, University Montpellier 1, France.
| | - C Colette
- Institute of Clinical Research, University Montpellier 1, France
| | - S Dejager
- Department of Endocrinology, Hospital Pitié Salpétrière, Paris, France
| | - D Owens
- Diabetes Research Group, Institute of Life Science, College of Medicine, Swansea University, Wales, United Kingdom
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Asif I, Hadley D, Harmon K, Owens D, Prutkin J, Salerno J, Drezner J. CARDIOVASCULAR SCREENING IN NCAA ATHLETES: FINDINGS FROM A MULTICENTER ECG-INCLUSIVE PROGRAM. Br J Sports Med 2014. [DOI: 10.1136/bjsports-2014-093494.7] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [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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Toresdahl B, Pelto H, Fudge J, Harmon K, Rao A, Asif I, Owens D, Prutkin J, Salerno J, Drezner J. EFFECTIVENESS OF CARDIAC SCREENING INCLUSIVE OF ECG IN YOUNG ATHLETES:. Br J Sports Med 2014. [DOI: 10.1136/bjsports-2014-093494.286] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [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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Monnier L, Colette C, Owens D. Basal insulin analogs: From pathophysiology to therapy. What we see, know, and try to comprehend? Diabetes & Metabolism 2013; 39:468-76. [DOI: 10.1016/j.diabet.2013.09.003] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/15/2013] [Revised: 09/06/2013] [Accepted: 09/08/2013] [Indexed: 12/27/2022]
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Monnier L, Hanefeld M, Schnell O, Colette C, Owens D. Insulin and atherosclerosis: how are they related? Diabetes Metab 2013; 39:111-7. [PMID: 23507269 DOI: 10.1016/j.diabet.2013.02.001] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/23/2013] [Accepted: 02/06/2013] [Indexed: 02/05/2023]
Abstract
The relationship between insulin and atherosclerosis is complex. People with type 2 diabetes are affected by three main glycaemic disorders: chronic hyperglycaemia; glycaemic variability; and iatrogenic hypoglycaemia. In addition to this triumvirate, the diabetic condition is characterized by lipid disorders, chronic low-grade inflammation and activation of oxidative stress. All these associated disorders reflect the insulin-resistant nature of type 2 diabetes and contribute to the development and progression of cardiovascular (CV) diseases. By both lowering plasma glucose and improving the lipid profile, insulin exerts beneficial effects on CV outcomes. In addition, insulin has several pleiotropic effects such as anti-inflammatory, antithrombotic and antioxidant properties. Insulin per se exerts an inhibitory effect on the activation of oxidative stress and seems able to counteract the pro-oxidant effects of ambient hyperglycaemia and glycaemic variability. However, insulin actions remain a subject of debate with respect to the risk of adverse CV events, which can increase in individuals exposed to high insulin doses. Evidence from the large-scale, long-term ORIGIN trial suggests that early implementation of insulin supplementation therapy in the course of glycaemic disorders, including type 2 diabetes, has a neutral impact on CV outcomes compared with standard management. Thus, the answer to the question "What impact does insulin have on atherosclerosis?" remains unclear, even though it is logical to deduce that insulin should be initiated as soon as possible and that small doses of insulin early on are better than higher doses later in the disease process.
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Affiliation(s)
- L Monnier
- Laboratory of Human Nutrition, University Montpellier I, Institute of Clinical Research, 641, avenue du Doyen-Giraud, 34093 Montpellier cedex 5, France.
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Stew BT, Fishpool SJC, Owens D, Quine S. Muckle-Wells syndrome: a treatable cause of congenital sensorineural hearing loss. B-ENT 2013; 9:161-163. [PMID: 23909124] [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: 06/02/2023] Open
Abstract
Muckle-Wells syndrome (MWS) is a rare autosomal dominant condition with variable expression. It is a subset of auto-inflammatory diseases characterised by recurrent inflammatory crises and is associated with chronic recurrent urticaria, sensorineural deafness, periodic arthritis and secondary amyloidosis. The diagnosis of MWS is a clinical one with sufferers classically presenting in childhood with a moderate fever and non-pruiginous urticaria. We describe a case of a six-year-old girl who was successfully diagnosed and treated with Anakinra. Muckle and Wells originally described this syndrome in 1962; however, only recently was it discovered to be genetically linked to chromosome 1q44 and subsequently to missense mutations in the CIAS1/NALP3/PYPAF1 gene. Since then, treatment has evolved and it remains one of few treatable causes of congenital profound sensorineural hearing loss.
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Affiliation(s)
- B T Stew
- Department of ENT Surgery, Singleton Hospital, Swansea, UK.
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Sherer A, Freeman L, Owens D, Nyako M, Hunter L, Buck N, Ragan L, Tijani T, White C, Hamilton P, Pettiford A. 21. Weighing In on the facts: Best practices in daily weight monitoring for heart failure patients. Heart Lung 2012. [DOI: 10.1016/j.hrtlng.2012.04.052] [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: 11/28/2022]
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Owens D, Fox R, Harrison W, Temple M, Tomkinson A. Re: Improvement in quality of life by adenotonsillectomy in children with adenotonsillar disease. Clin Otolaryngol 2011; 36:281-2. [PMID: 21752216 DOI: 10.1111/j.1749-4486.2011.02301.x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Owens D, Moore M, Craven C, Magurean C, Backhouse S, Whittet H. 'Valve-stabilised' rhinospirometry can predict the benefit of septal surgery: a pre- and post-operative correlation study. Eur Arch Otorhinolaryngol 2011; 269:113-9. [PMID: 21706322 DOI: 10.1007/s00405-011-1674-z] [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] [Received: 12/14/2010] [Accepted: 06/08/2011] [Indexed: 11/25/2022]
Abstract
Septoplasty is a procedure often associated with high levels of patient dissatisfaction post-operatively. This study examined whether rhinospirometry and a modified 'valve-stabilised' technique could pre-operatively predict the outcome of septal surgery and therefore have a role as an objective tool for selection of patients suffering from nasal obstruction due to septal deformity for the procedure of septoplasty. A prospective study was performed of patients attending Singleton Hospital, Swansea, for surgical treatment of nasal obstruction due to septal deformity. Participants were asked to undertake decongested visual analogue scoring (VAS) and rhinospirometric assessment of their nasal obstruction in both normal 'resting' and 'valve-stabilised' nasal positioning. These investigations were undertaken on the day of surgery and 6 weeks post-operatively. Results were converted into nasal partition ratio scores and were assessed statistically for difference, correlation and accuracy. A total of 29 individual participants were included in the study. Septal surgery produced a statistically significant improvement in nasal airflow symmetry in the normal 'resting' nasal position using rhinospirometry (Wilcoxon ranked p > 0.5). This difference was not seen between evaluations in 'valve-stabilised' position (Wilcoxon p < 0.001). No statistical difference was evident between pre-operative 'valve-stabilised' testing and post-operative 'resting position'. The finding was also apparent on VAS nasal assessment. Correlation studies showed a strong relationship between pre-operative 'valve-stabilised' and post-operative 'resting' rhinospirometry results (Spearman's rho = 0. 586, p < 0.002). The strength of this relationship between VAS assessments was less pronounced (Spearman's rho = 0.386 p = 0.07). 'Valve-stabilised' rhinospirometry and VAS appear to be useful pre-operatively to predict the outcome of septal surgery, in terms of airflow symmetry, for nasal obstruction due to septal deformity, with pre-operative 'valve-stabilised' results correlating well with the post-operative standard 'resting' outcomes. Valve-stabilised rhinospirometry may have a role in pre-operatively predicting of likely post-operative patient satisfaction, although further studies are required in this area.
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Affiliation(s)
- D Owens
- ENT Department, University Hospital of Wales, Heath Park, Cardiff CF14 4XW, Wales, UK.
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Owens D. Book Review: Sooner or Later: Restoring Sanity to Your End-of-Life Care. Damiano de Sano Iocovozzi MSN FNP CNS. Bloomington, Indiana: Transformation Media Books. 2010. Soft cover, 95 pages, $12.95. Respir Care 2011. [DOI: 10.4187/respcare.01291] [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: 11/05/2022]
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Waterhouse J, Nevill A, Weinert D, Folkard S, Minors D, Atkinson G, Reilly T, Macdonald I, Owens D, Sytnik N, Tucker P. Modeling the Effect of Spontaneous Activity on Core Temperature in Healthy Human Subjects. BIOL RHYTHM RES 2010. [DOI: 10.1076/brhm.32.5.511.1293] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.9] [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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