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Kandaswamy S, Thompson S, Orenstein E. Accurate Dosing Weight: When the 10% Really Matters. Stud Health Technol Inform 2024; 310:354-358. [PMID: 38269824 DOI: 10.3233/shti230986] [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] [Indexed: 01/26/2024]
Abstract
INTRODUCTION Children are at increased risk of medication-associated adverse events, often due to weight-based dosing errors. We aimed to reduce the proportion of medications that were administered where the dosing weight was ≥ 10% different from the recorded weight. METHODS We adopted in-situ usability testing to iteratively improve design of clinical decision support that would enable accurate dosing weight documentation by prompting clinicians to update weight if recorded weight was > 10% different and it had been at least 7 days since the last dosing weight update. RESULTS The proportion of medication administrations with difference >10% between their recorded weight and dosing weight decreased from 13.1% (56,256/ 429,006) in the baseline period to 9.5% (35,560 / 372,443) in the intervention period (P < 0.001). DISCUSSION AND CONCLUSION User-centered design of an interruptive alert improved the accuracy of dosing weights during medication administrations without substantial alert burden. In-situ usability testing is an effective approach to rapidly obtain feedback from frontline users and iterate on the design to effect desired behavior changes.
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Affiliation(s)
| | | | - Evan Orenstein
- Emory University School of Medicine, Atlanta, GA, USA
- Children's Healthcare of Atlanta, Atlanta, GA, USA
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2
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Borman PJ, Guiraldelli AM, Weitzel J, Thompson S, Ermer J, Roussel JM, Marach J, Sproule S, Pappa HN. Ongoing Analytical Procedure Performance Verification Using a Risk-Based Approach to Determine Performance Monitoring Requirements. Anal Chem 2024; 96:966-979. [PMID: 38191128 PMCID: PMC10809227 DOI: 10.1021/acs.analchem.3c03708] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/18/2023] [Revised: 11/21/2023] [Accepted: 11/21/2023] [Indexed: 01/10/2024]
Abstract
The analytical procedure life cycle (APLC) provides a holistic framework to ensure analytical procedure fitness for purpose. USP's general chapter <1220> considers the validation activities that take place across the entire analytical procedure lifecycle and provides a three-stage framework for its implementation. Performing ongoing analytical procedure performance verification (OPPV) (stage 3) ensures that the procedure remains in a state of control across its lifecycle of use post validation (qualification) and involves an ongoing program to collect and analyze data that relate to the performance of the procedure. Knowledge generated during stages 1 (procedure design) and 2 (procedure performance qualification) is used as the basis for the design of the routine monitoring plan to support performance verification (stage 3). The extent of the routine monitoring required should be defined based on risk assessment, considering the complexity of the procedure, its intended purpose, and knowledge about process/procedure variability. The analytical target profile (ATP) can be used to provide or guide the establishment of acceptance criteria used to verify the procedure performance during routine use (e.g., through a system/sample suitability test (SST) or verification criteria applicable to procedure changes or transfers). An ATP however is not essentially required to perform OPPV, and a procedure performance monitoring program can be implemented even if the full APLC framework has not been applied. In these situations, verification criteria can be derived from existing validation or system suitability criteria. Elements of the life cycle approach can also be applied retrospectively if deemed useful.
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Affiliation(s)
- Phil J. Borman
- US
Pharmacopeia 12601 Twinbrook Pkwy, Rockville, Maryland 20851, United States
| | | | - Jane Weitzel
- US
Pharmacopeia 12601 Twinbrook Pkwy, Rockville, Maryland 20851, United States
| | - Sarah Thompson
- AstraZeneca, Silk Road Business Park, Macclesfield, Cheshire SK10 2NA, United Kingdom
| | - Joachim Ermer
- US
Pharmacopeia 12601 Twinbrook Pkwy, Rockville, Maryland 20851, United States
| | - Jean-Marc Roussel
- US
Pharmacopeia 12601 Twinbrook Pkwy, Rockville, Maryland 20851, United States
| | - Jaime Marach
- US
Pharmacopeia 12601 Twinbrook Pkwy, Rockville, Maryland 20851, United States
| | - Stephanie Sproule
- US
Pharmacopeia 12601 Twinbrook Pkwy, Rockville, Maryland 20851, United States
| | - Horacio N. Pappa
- US
Pharmacopeia 12601 Twinbrook Pkwy, Rockville, Maryland 20851, United States
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3
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Polzer S, Thompson S, Vittalbabu S, Ulu A, Carter D, Nordgren T, Eskandari M. MATLAB-Based Algorithm and Software for Analysis of Wavy Collagen Fibers. Microsc Microanal 2023; 29:2108-2126. [PMID: 37992253 DOI: 10.1093/micmic/ozad117] [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] [Subscribe] [Scholar Register] [Received: 04/21/2023] [Revised: 09/15/2023] [Accepted: 09/25/2023] [Indexed: 11/24/2023]
Abstract
Knowledge of soft tissue fiber structure is necessary for accurate characterization and modeling of their mechanical response. Fiber configuration and structure informs both our understanding of healthy tissue physiology and of pathological processes resulting from diseased states. This study develops an automatic algorithm to simultaneously estimate fiber global orientation, abundance, and waviness in an investigated image. To our best knowledge, this is the first validated algorithm which can reliably separate fiber waviness from its global orientation for considerably wavy fibers. This is much needed feature for biological tissue characterization. The algorithm is based on incremental movement of local regions of interest (ROI) and analyzes two-dimensional images. Pixels belonging to the fiber are identified in the ROI, and ROI movement is determined according to local orientation of fiber within the ROI. The algorithm is validated with artificial images and ten images of porcine trachea containing wavy fibers. In each image, 80-120 fibers were tracked manually to serve as verification. The coefficient of determination R2 between curve lengths and histograms documenting the fiber waviness and global orientation were used as metrics for analysis. Verification-confirmed results were independent of image rotation and degree of fiber waviness, with curve length accuracy demonstrated to be below 1% of fiber curved length. Validation-confirmed median and interquartile range of R2, respectively, were 0.90 and 0.05 for curved length, 0.92 and 0.07 for waviness, and 0.96 and 0.04 for global orientation histograms. Software constructed from the proposed algorithm was able to track one fiber in about 1.1 s using a typical office computer. The proposed algorithm can reliably and accurately estimate fiber waviness, curve length, and global orientation simultaneously, moving beyond the limitations of prior methods.
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Affiliation(s)
- Stanislav Polzer
- Department of Applied Mechanics, VSB-Technical University of Ostrava, 17.listopadu 2172/15, 708 00 Ostrava, Czech Republic
| | - Sarah Thompson
- Department of Mechanical Engineering, University of California at Riverside, 3401 Watkins Drive, Riverside CA 92521, USA
| | - Swathi Vittalbabu
- Department of Mechanical Engineering, University of California at Riverside, 3401 Watkins Drive, Riverside CA 92521, USA
| | - Arzu Ulu
- BREATHE Center School of Medicine, University of California at Riverside, 3401 Watkins Drive, Riverside CA 92521USA
| | - David Carter
- Molecular Cell and Systems Biology, University of California at Riverside, 900 University Ave, Riverside CA 92521, USA
| | - Tara Nordgren
- BREATHE Center School of Medicine, University of California at Riverside, 3401 Watkins Drive, Riverside CA 92521USA
| | - Mona Eskandari
- Department of Mechanical Engineering, University of California at Riverside, 3401 Watkins Drive, Riverside CA 92521, USA
- BREATHE Center School of Medicine, University of California at Riverside, 3401 Watkins Drive, Riverside CA 92521USA
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4
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Sperling EL, Hulett JM, Sherwin LB, Thompson S, Bettencourt BA. The effect of mindfulness interventions on stress in medical students: A systematic review and meta-analysis. PLoS One 2023; 18:e0286387. [PMID: 37796866 PMCID: PMC10553303 DOI: 10.1371/journal.pone.0286387] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2022] [Accepted: 05/16/2023] [Indexed: 10/07/2023] Open
Abstract
BACKGROUND Medical students have high levels of stress, which is associated with higher incidents of burnout, depression, and suicide compared to age-matched peers. Mindfulness practices have been shown to reduce stress among medical students. PURPOSE The purpose of this systematic review and meta-analysis was to examine if mindfulness interventions have an overall effect on stress outcomes in the high-stress population of medical students globally, particularly given the wide variety of interventions. Any intervention designed to promote mindfulness was included. METHODS A comprehensive literature search was completed to include multiple databases, ancestry, and hand-searching and 35 studies were included. Standardized mean difference effect sizes (ES) were synthesized across studies using a random-effects model for changes in stress levels in medical students ≥ 18. Moderator analyses were performed to explore variations in effects by participant and intervention characteristics. RESULTS Mindfulness interventions significantly improved stress among medical students in both the two-arm studies (d = 0.370, k = 19, n = 2,199, 95% CI 0.239-0.501, p < .001) and one-arm pre-post studies (d = 0.291, k = 30, n = 18 (two cohorts from Dyrbye et al), 95% CI 0.127-0.455, p = 0.001). Moderator analyses found trends in less hours and less required practice resulted in better improvement in stress. CONCLUSIONS This study further confirms that despite a wide variety of mindfulness interventions for medical students around the world, they produce an overall small-to-moderate effect on stress reduction. Future research looking at the most effective protocols for high-stress medical students would be beneficial.
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Affiliation(s)
- Edie L. Sperling
- Medical Anatomical Sciences, College of Osteopathic Medicine of the Pacific–Northwest, Western University of Health Sciences, Lebanon, Oregon, United States of America
- Sinclair School of Nursing, University of Missouri, Columbia, Missouri, United States of America
| | - Jennifer M. Hulett
- Sinclair School of Nursing, University of Missouri, Columbia, Missouri, United States of America
- Ellis Fischel Cancer Center, University of Missouri, Columbia, Missouri, United States of America
| | - LeeAnne B. Sherwin
- Sinclair School of Nursing, University of Missouri, Columbia, Missouri, United States of America
| | - Sarah Thompson
- Sinclair School of Nursing, University of Missouri, Columbia, Missouri, United States of America
| | - B. Ann Bettencourt
- Department of Psychological Sciences, University of Missouri, Columbia, Missouri, United States of America
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Wheelock MD, Strain JF, Mansfield P, Tu JC, Tanenbaum A, Preische O, Chhatwal JP, Cash DM, Cruchaga C, Fagan AM, Fox NC, Graff-Radford NR, Hassenstab J, Jack CR, Karch CM, Levin J, McDade EM, Perrin RJ, Schofield PR, Xiong C, Morris JC, Bateman RJ, Jucker M, Benzinger TLS, Ances BM, Eggebrecht AT, Gordon BA, Allegri R, Araki A, Barthelemy N, Bateman R, Bechara J, Benzinger T, Berman S, Bodge C, Brandon S, Brooks W, Brosch J, Buck J, Buckles V, Carter K, Cash D, Cash L, Chen C, Chhatwal J, Chrem P, Chua J, Chui H, Cruchaga C, Day GS, De La Cruz C, Denner D, Diffenbacher A, Dincer A, Donahue T, Douglas J, Duong D, Egido N, Esposito B, Fagan A, Farlow M, Feldman B, Fitzpatrick C, Flores S, Fox N, Franklin E, Friedrichsen N, Fujii H, Gardener S, Ghetti B, Goate A, Goldberg S, Goldman J, Gonzalez A, Gordon B, Gräber-Sultan S, Graff-Radford N, Graham M, Gray J, Gremminger E, Grilo M, Groves A, Haass C, Häsler L, Hassenstab J, Hellm C, Herries E, Hoechst-Swisher L, Hofmann A, Holtzman D, Hornbeck R, Igor Y, Ihara R, Ikeuchi T, Ikonomovic S, Ishii K, Jack C, Jerome G, Johnson E, Jucker M, Karch C, Käser S, Kasuga K, Keefe S, Klunk W, Koeppe R, Koudelis D, Kuder-Buletta E, Laske C, Lee JH, Levey A, Levin J, Li Y, Lopez O, Marsh J, Martinez R, Martins R, Mason NS, Masters C, Mawuenyega K, McCullough A, McDade E, Mejia A, Morenas-Rodriguez E, Mori H, Morris J, Mountz J, Mummery C, Nadkami N, Nagamatsu A, Neimeyer K, Niimi Y, Noble J, Norton J, Nuscher B, O'Connor A, Obermüller U, Patira R, Perrin R, Ping L, Preische O, Renton A, Ringman J, Salloway S, Sanchez-Valle R, Schofield P, Senda M, Seyfried N, Shady K, Shimada H, Sigurdson W, Smith J, Smith L, Snitz B, Sohrabi H, Stephens S, Taddei K, Thompson S, Vöglein J, Wang P, Wang Q, Weamer E, Xiong C, Xu J, Xu X. Brain network decoupling with increased serum neurofilament and reduced cognitive function in Alzheimer's disease. Brain 2023; 146:2928-2943. [PMID: 36625756 PMCID: PMC10316768 DOI: 10.1093/brain/awac498] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/20/2022] [Revised: 11/21/2022] [Accepted: 12/12/2022] [Indexed: 01/11/2023] Open
Abstract
Neurofilament light chain, a putative measure of neuronal damage, is measurable in blood and CSF and is predictive of cognitive function in individuals with Alzheimer's disease. There has been limited prior work linking neurofilament light and functional connectivity, and no prior work has investigated neurofilament light associations with functional connectivity in autosomal dominant Alzheimer's disease. Here, we assessed relationships between blood neurofilament light, cognition, and functional connectivity in a cross-sectional sample of 106 autosomal dominant Alzheimer's disease mutation carriers and 76 non-carriers. We employed an innovative network-level enrichment analysis approach to assess connectome-wide associations with neurofilament light. Neurofilament light was positively correlated with deterioration of functional connectivity within the default mode network and negatively correlated with connectivity between default mode network and executive control networks, including the cingulo-opercular, salience, and dorsal attention networks. Further, reduced connectivity within the default mode network and between the default mode network and executive control networks was associated with reduced cognitive function. Hierarchical regression analysis revealed that neurofilament levels and functional connectivity within the default mode network and between the default mode network and the dorsal attention network explained significant variance in cognitive composite scores when controlling for age, sex, and education. A mediation analysis demonstrated that functional connectivity within the default mode network and between the default mode network and dorsal attention network partially mediated the relationship between blood neurofilament light levels and cognitive function. Our novel results indicate that blood estimates of neurofilament levels correspond to direct measurements of brain dysfunction, shedding new light on the underlying biological processes of Alzheimer's disease. Further, we demonstrate how variation within key brain systems can partially mediate the negative effects of heightened total serum neurofilament levels, suggesting potential regions for targeted interventions. Finally, our results lend further evidence that low-cost and minimally invasive blood measurements of neurofilament may be a useful marker of brain functional connectivity and cognitive decline in Alzheimer's disease.
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Affiliation(s)
- Muriah D Wheelock
- Department of Radiology, Washington University in St. Louis, MO, USA
| | - Jeremy F Strain
- Department of Neurology, Washington University in Saint Louis, St. Louis, MO, USA
| | | | - Jiaxin Cindy Tu
- Department of Radiology, Washington University in St. Louis, MO, USA
| | - Aaron Tanenbaum
- Department of Neurology, Washington University in Saint Louis, St. Louis, MO, USA
| | - Oliver Preische
- German Center for Neurodegenerative Diseases (DZNE), Tübingen, Germany
| | - Jasmeer P Chhatwal
- Department of Neurology, Massachusetts General Hospital, Boston, MA, USA
| | - David M Cash
- Dementia Research Center, UCL Queen Square, London, UK.,UK Dementia Research Institute, College London, London, UK
| | - Carlos Cruchaga
- Department of Psychiatry, Washington University in St. Louis, MO, USA
| | - Anne M Fagan
- Department of Neurology, Washington University in Saint Louis, St. Louis, MO, USA
| | - Nick C Fox
- Dementia Research Center, UCL Queen Square, London, UK.,UK Dementia Research Institute, College London, London, UK
| | | | - Jason Hassenstab
- Department of Neurology, Washington University in Saint Louis, St. Louis, MO, USA
| | | | - Celeste M Karch
- Department of Psychiatry, Washington University in St. Louis, MO, USA
| | - Johannes Levin
- Department of Neurology, Ludwig-Maximilians-Universität München, Munich, Germany.,German Center for Neurodegenerative Diseases (DZNE), Munich, Germany.,Munich Cluster for Systems Neurology (SyNergy), Munich, Germany
| | - Eric M McDade
- Department of Neurology, Washington University in Saint Louis, St. Louis, MO, USA
| | - Richard J Perrin
- Department of Neurology, Washington University in Saint Louis, St. Louis, MO, USA.,Department of Pathology & Immunology, Washington University in St. Louis, MO, USA
| | - Peter R Schofield
- Neuroscience Research Australia, Sydney, NSW, Australia.,School of Medical Sciences, University of New South Wales, Sydney, NSW, Australia
| | - Chengjie Xiong
- Division of Biostatistics, Washington University in St. Louis, MO, USA
| | - John C Morris
- Department of Neurology, Washington University in Saint Louis, St. Louis, MO, USA
| | - Randal J Bateman
- Department of Neurology, Washington University in Saint Louis, St. Louis, MO, USA
| | - Mathias Jucker
- German Center for Neurodegenerative Diseases (DZNE), Tübingen, Germany
| | - Tammie L S Benzinger
- Department of Neurology, Washington University in Saint Louis, St. Louis, MO, USA
| | - Beau M Ances
- Department of Neurology, Washington University in Saint Louis, St. Louis, MO, USA
| | - Adam T Eggebrecht
- Department of Radiology, Washington University in St. Louis, MO, USA
| | - Brian A Gordon
- Department of Radiology, Washington University in St. Louis, MO, USA
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Glover B, Bederman L, Orenstein E, Kandaswamy S, Cooley A, Bryant C, Thompson S, Thomas S, Graham S, Yamasaki S, Thornton M, Perry L, Hames N. Quasi-experimental, Nonrandomized Initiative to Minimize Sleep Disruptions among Hospitalized Children. Pediatr Qual Saf 2023; 8:e666. [PMID: 37434593 PMCID: PMC10332835 DOI: 10.1097/pq9.0000000000000666] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2023] [Accepted: 05/27/2023] [Indexed: 07/13/2023] Open
Abstract
Hospitalized children experience frequent sleep disruptions. We aimed to reduce caregiver-reported sleep disruptions of children hospitalized on the pediatric hospital medicine service by 10% over 12 months. Methods In family surveys, caregivers cited overnight vital signs (VS) as a primary contributor to sleep disruption. We created a new VS frequency order of "every 4 hours (unless asleep between 2300 and 0500)" as well as a patient list column in the electronic health record indicating patients with this active VS order. The outcome measure was caregiver-reported sleep disruptions. The process measure was adherence to the new VS frequency. The balancing measure was rapid responses called on patients with the new VS frequency. Results Physician teams ordered the new VS frequency for 11% (1,633/14,772) of patient nights on the pediatric hospital medicine service. Recorded VS between 2300 and 0500 was 89% (1,447/1,633) of patient nights with the new frequency ordered compared to 91% (11,895/13,139) of patient nights without the new frequency ordered (P = 0.01). By contrast, recorded blood pressure between 2300 and 0500 was only 36% (588/1,633) of patient nights with the new frequency but 87% (11,478/13,139) of patient nights without the new frequency (P < 0.001). Overall, caregivers reported sleep disruptions on 24% (99/419) of reported nights preintervention, which decreased to 8% (195/2,313) postintervention (P < 0.001). Importantly, there were no adverse safety issues related to this initiative. Conclusion This study safely implemented a new VS frequency with reduced overnight blood pressure readings and caregiver-reported sleep disruptions.
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Affiliation(s)
- Brianna Glover
- From the Department of Pediatrics, Emory University School of Medicine, Atlanta, Ga
| | - Leonid Bederman
- Department of Pediatrics, Duke University School of Medicine, Durham, N.C
| | - Evan Orenstein
- From the Department of Pediatrics, Emory University School of Medicine, Atlanta, Ga
- Division of Hospital Medicine, Children’s Healthcare of Atlanta, Atlanta, Ga
- Department of Information Services & Technology, Children’s Healthcare of Atlanta, Atlanta, Ga
| | | | - Anthony Cooley
- From the Department of Pediatrics, Emory University School of Medicine, Atlanta, Ga
- Division of Hospital Medicine, Children’s Healthcare of Atlanta, Atlanta, Ga
| | - Christy Bryant
- Department of Information Services & Technology, Children’s Healthcare of Atlanta, Atlanta, Ga
| | - Sarah Thompson
- Department of Information Services & Technology, Children’s Healthcare of Atlanta, Atlanta, Ga
| | - Sindhu Thomas
- Department of Nursing, Nurse Management, Children’s Healthcare of Atlanta, Atlanta, Ga
| | - Sarah Graham
- Department of Nursing, Nurse Management, Children’s Healthcare of Atlanta, Atlanta, Ga
| | - Selena Yamasaki
- Department of Nursing, Nurse Management, Children’s Healthcare of Atlanta, Atlanta, Ga
| | - Michelle Thornton
- Department of Nursing, Nurse Management, Children’s Healthcare of Atlanta, Atlanta, Ga
| | - Linda Perry
- Department of Family Experience Liaisons, Children’s Healthcare of Atlanta, Atlanta, Ga
| | - Nicole Hames
- From the Department of Pediatrics, Emory University School of Medicine, Atlanta, Ga
- Division of Hospital Medicine, Children’s Healthcare of Atlanta, Atlanta, Ga
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Jordan TA, Thompson S, Kulessa B, Ferraccioli F. Geological sketch map and implications for ice flow of Thwaites Glacier, West Antarctica, from integrated aerogeophysical observations. Sci Adv 2023; 9:eadf2639. [PMID: 37256953 PMCID: PMC10413667 DOI: 10.1126/sciadv.adf2639] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/10/2022] [Accepted: 04/25/2023] [Indexed: 06/02/2023]
Abstract
The geology beneath Thwaites Glacier, the Antarctic glacial catchment most vulnerable to climate change, is unknown. Thwaites Glacier lies within the West Antarctic Rift System, but details of the subglacial geology relevant to glacial flow, including sediment availability, underlying lithology, and heat flux, are lacking. We present the first sketch map of the subglacial geology of Thwaites Glacier, interpreted from maps of airborne gravity, magnetic and radar data, supported by 2D models and 3D inversion of subsurface properties, and the regional geological context. A zone of Cretaceous mafic magmatism extending ~200 km inland from the coast is interpreted, while sedimentary basins are restricted to a region 150 to 200 km inboard of the coast, underlying just 20% of the catchment. Several granitic subglacial highlands are identified, forming long-lived topographic highs. Our geological interpretation places constraints on the basal properties of Thwaites Glacier, laying the foundation for both improved predictions of ice sheet change and studies of West Antarctic tectonics.
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Affiliation(s)
| | - Sarah Thompson
- Australian Antarctic Program Partnership, Institute for Marine and Antarctic Studies, University of Tasmania, Hobart, Tasmania, Australia
| | - Bernd Kulessa
- School of Biosciences, Geography and Physics, Swansea University, Swansea, UK
- School of Geography, Planning, and Spatial Sciences, University of Tasmania, Hobart, Australia
| | - Fausto Ferraccioli
- British Antarctic Survey, Cambridge, UK
- Istituto Nazionale di Oceanografia e di Geofisica Sperimentale, Borgo Grotta Gigante, Sgonico, Italy
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Selvanathan A, Forwood C, Russell J, Batten K, Thompson S, Palmer EE, Macintosh R, Nightingale S, Mitchell R, Alvaro F, Dudding-Byth T, Lunke S, Christodoulou J, Stark Z, White F, Jones SA, Bhattacharya K. Rapid whole-genome sequencing leading to specific treatment for two infants with haemophagocytic lymphohistiocytosis due to Wolman disease. Pediatr Blood Cancer 2023:e30394. [PMID: 37092873 DOI: 10.1002/pbc.30394] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/02/2023] [Revised: 04/08/2023] [Accepted: 04/10/2023] [Indexed: 04/25/2023]
Affiliation(s)
- Arthavan Selvanathan
- Genetic Metabolic Disorders Service, Sydney Children's Hospitals Network, Westmead, New South Wales, Australia
| | - C Forwood
- Centre for Clinical Genetics, Sydney Children's Hospital, Sydney Children's Hospitals Network, Westmead, New South Wales, Australia
| | - J Russell
- Genetic Metabolic Disorders Service, Sydney Children's Hospitals Network, Westmead, New South Wales, Australia
- Centre for Clinical Genetics, Sydney Children's Hospital, Sydney Children's Hospitals Network, Westmead, New South Wales, Australia
| | - K Batten
- Department of Nutrition and Dietetics, The Children's Hospital at Westmead, Sydney Children's Hospitals Network, Westmead, New South Wales, Australia
- Faculty of Medicine & Health, University of New South Wales, Sydney, New South Wales, Australia
| | - S Thompson
- Department of Nutrition and Dietetics, The Children's Hospital at Westmead, Sydney Children's Hospitals Network, Westmead, New South Wales, Australia
- Disciplines of Genetic Medicine and Child and Adolescent Health, The University of Sydney, Sydney, New South Wales, Australia
| | - E E Palmer
- Centre for Clinical Genetics, Sydney Children's Hospital, Sydney Children's Hospitals Network, Westmead, New South Wales, Australia
- Faculty of Medicine & Health, University of New South Wales, Sydney, New South Wales, Australia
| | - R Macintosh
- Centre for Clinical Genetics, Sydney Children's Hospital, Sydney Children's Hospitals Network, Westmead, New South Wales, Australia
| | - S Nightingale
- Department of Gastroenterology, John Hunter Children's Hospital, Newcastle, New South Wales, Australia
- School of Medicine and Public Health, University of Newcastle, Newcastle, New South Wales, Australia
| | - R Mitchell
- Faculty of Medicine & Health, University of New South Wales, Sydney, New South Wales, Australia
- Kids Cancer Centre, Sydney Children's Hospital, Sydney Children's Hospitals Network, Westmead, New South Wales, Australia
| | - F Alvaro
- School of Medicine and Public Health, University of Newcastle, Newcastle, New South Wales, Australia
- Children's Cancer and Haematology Service, John Hunter Children's Hospital, Newcastle, New South Wales, Australia
| | - T Dudding-Byth
- School of Medicine and Public Health, University of Newcastle, Newcastle, New South Wales, Australia
- NSW Genetics of Learning Disability (GOLD) Service, Hunter New England Health, Waratah, New South Wales, Australia
| | - S Lunke
- Victorian Clinical Genetics Services, Murdoch Children's Research Institute, Melbourne, Victoria, Australia
- Department of Paediatrics, University of Melbourne, Melbourne, Victoria, Australia
| | - J Christodoulou
- Disciplines of Genetic Medicine and Child and Adolescent Health, The University of Sydney, Sydney, New South Wales, Australia
- Victorian Clinical Genetics Services, Murdoch Children's Research Institute, Melbourne, Victoria, Australia
- Department of Paediatrics, University of Melbourne, Melbourne, Victoria, Australia
| | - Z Stark
- Victorian Clinical Genetics Services, Murdoch Children's Research Institute, Melbourne, Victoria, Australia
- Department of Paediatrics, University of Melbourne, Melbourne, Victoria, Australia
- Australian Genomics Health Alliance, Darlinghurst, New South Wales, Australia
| | - F White
- Willink Biochemical Genetics Unit, Manchester Centre for Genomic Medicine, St Mary's Hospital, Manchester, UK
| | - S A Jones
- Willink Biochemical Genetics Unit, Manchester Centre for Genomic Medicine, St Mary's Hospital, Manchester, UK
| | - K Bhattacharya
- Genetic Metabolic Disorders Service, Sydney Children's Hospitals Network, Westmead, New South Wales, Australia
- Disciplines of Genetic Medicine and Child and Adolescent Health, The University of Sydney, Sydney, New South Wales, Australia
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9
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Thompson S. Employers must provide better support to workers with long covid. BMJ 2023; 381:800. [PMID: 37024137 DOI: 10.1136/bmj.p800] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/08/2023]
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10
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Tesfalidet S, Thompson S, Welch B, Frimpong R, Reisenauer C, Flemming C, Moynagh M, Schmit G, Atwell T, Takahashi E. Abstract No. 170 Bleeding Complications Requiring Therapeutic Trans-Arterial Embolization Following Percutaneous Cryoablation for cT1b and cT2 Renal Masses without and with Pre-ablation Prophylactic Trans-Arterial Embolization. J Vasc Interv Radiol 2023. [DOI: 10.1016/j.jvir.2022.12.225] [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: 02/27/2023] Open
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11
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Mushtaq A, Woodrum D, Thompson S, Adamo D, Lomas D, Favazza C, Lu A, Kwon E. Abstract No. 91 MRI-Guided Cryoablation of Oligo-Metastatic Prostate Cancer to the Pelvic Lymph Nodes. J Vasc Interv Radiol 2023. [DOI: 10.1016/j.jvir.2022.12.138] [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: 02/27/2023] Open
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12
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Thompson S, Pang CY, Sepuru KM, Cambier S, Hellyer TP, Scott J, Simpson AJ, Proost P, Kirby JA, Rajarathnam K, Sheerin NS, Ali S. Nitration of chemokine CXCL8 acts as a natural mechanism to limit acute inflammation. Cell Mol Life Sci 2023; 80:35. [PMID: 36622452 PMCID: PMC9829591 DOI: 10.1007/s00018-022-04663-x] [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: 09/16/2022] [Revised: 11/24/2022] [Accepted: 12/09/2022] [Indexed: 01/10/2023]
Abstract
Chemokine CXCL8 is a key facilitator of the human host immune response, mediating neutrophil migration, and activation at the site of infection and injury. The oxidative burst is an important effector mechanism which leads to the generation of reactive nitrogen species (RNS), including peroxynitrite. The current study was performed to determine the potential for nitration to alter the biological properties of CXCL8 and its detection in human disease. Here, we show peroxynitrite nitrates CXCL8 and thereby regulates neutrophil migration and activation. The nitrated chemokine was unable to induce transendothelial neutrophil migration in vitro and failed to promote leukocyte recruitment in vivo. This reduced activity is due to impairment in both G protein-coupled receptor signaling and glycosaminoglycan binding. Using a novel antibody, nitrated CXCL8 was detected in bronchoalveolar lavage samples from patients with pneumonia. These findings were validated by mass spectrometry. Our results provide the first direct evidence of chemokine nitration in human pathophysiology and suggest a natural mechanism that limits acute inflammation.
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Affiliation(s)
- Sarah Thompson
- Immunity and Inflammation Theme, Faculty of Medical Sciences, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, NE2 4HH UK
| | - Chong Yun Pang
- Immunity and Inflammation Theme, Faculty of Medical Sciences, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, NE2 4HH UK
| | - Krishna Mohan Sepuru
- Department of Biochemistry and Molecular Biology, Sealy Center for Structural Biology and Molecular Biophysics, The University of Texas Medical Branch, Galveston, TX 77555 USA
| | - Seppe Cambier
- Department of Microbiology, Immunology and Transplantation, Rega Institute, KU Leuven, 3000 Leuven, Belgium
| | - Thomas P. Hellyer
- Immunity and Inflammation Theme, Faculty of Medical Sciences, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, NE2 4HH UK ,Department of Critical Care Medicine, Royal Victoria Infirmary, Newcastle Upon Tyne Hospitals NHS Foundation Trust, Newcastle Upon Tyne, NE1 4LP UK
| | - Jonathan Scott
- Immunity and Inflammation Theme, Faculty of Medical Sciences, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, NE2 4HH UK
| | - A. John Simpson
- Immunity and Inflammation Theme, Faculty of Medical Sciences, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, NE2 4HH UK ,Department of Respiratory Medicine, Royal Victoria Infirmary, Newcastle Upon Tyne Hospitals NHS Foundation Trust, Newcastle upon Tyne, NE1 4L9 UK
| | - Paul Proost
- Department of Microbiology, Immunology and Transplantation, Rega Institute, KU Leuven, 3000 Leuven, Belgium
| | - John A. Kirby
- Immunity and Inflammation Theme, Faculty of Medical Sciences, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, NE2 4HH UK
| | - Krishna Rajarathnam
- Department of Biochemistry and Molecular Biology, Sealy Center for Structural Biology and Molecular Biophysics, The University of Texas Medical Branch, Galveston, TX 77555 USA ,Institute for Human Infections and Immunity, The University of Texas Medical Branch, Galveston, TX 77555 USA
| | - Neil S. Sheerin
- Immunity and Inflammation Theme, Faculty of Medical Sciences, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, NE2 4HH UK
| | - Simi Ali
- Immunity and Inflammation Theme, Faculty of Medical Sciences, Translational and Clinical Research Institute, Newcastle University, Newcastle upon Tyne, NE2 4HH UK
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13
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Sperling EL, Hulett JM, Sherwin LB, Thompson S, Bettencourt BA. Prevalence, characteristics and measurement of somatic symptoms related to mental health in medical students: a scoping review. Ann Med 2023; 55:2242781. [PMID: 37552776 PMCID: PMC10411307 DOI: 10.1080/07853890.2023.2242781] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 07/22/2023] [Accepted: 07/27/2023] [Indexed: 08/10/2023] Open
Abstract
INTRODUCTION Somatic symptoms related to mental health in medical students are under-researched, with nothing on the topic being published in the United States in over three decades. This scoping review is the first of its kind to explore the prevalence, type and severity of somatic symptoms induced by stress, anxiety, depression and burnout amongst medical students, with the objective of describing the significance and breadth of this issue. METHODS PRISMA-ScR guidelines were used to guide this review. A comprehensive search was performed of 22 databases, followed by bibliographic and hand searching. Inclusion criteria were published, peer-reviewed articles with a sample of medical students and at least one measure of somatic symptoms related to mental health, in English or with an English-language translation. Excluded were review, companion and editorial articles. Coding was done by an experienced coder trained in systematic review techniques. Two authors reviewed each article. RESULTS Twenty-nine articles met inclusion criteria, representing 16 countries, 31 schools/teaching hospitals and 9,887 medical students. The prevalence of somatic symptoms ranged from 5.7 to 80.1%, and somatic symptoms were overwhelmingly found to be significantly correlated with mental ill-health. Somatic symptoms included back pain, neck pain, headaches, sleep disturbances and functional gastrointestinal disorders. Eleven different outcome measures were used, with varying degrees of validity and reliability, which were compared and assessed. CONCLUSIONS Somatic symptoms appear strongly correlated with mental ill-health in medical students, and are likely highly prevalent. This review highlights the need for further research on somatic symptoms of mental ill-health in medical students, particularly in the United States, and the addition of larger, multi-institutional cohorts to expand our understanding of prevalence, incidence and inciting factors of somatic symptoms. Longitudinal studies tracking somatic symptoms' effect on career trajectory and professional burnout levels are also needed. Finally, future research should explore interventions for reducing physical symptom burden in medical students.
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Affiliation(s)
- Edie L. Sperling
- Sinclair School of Nursing, University of Missouri, Columbia, MO, USA
- College of Osteopathic Medicine of the Pacific-Northwest, Western University of Health Sciences, Lebanon, OR, USA
| | - Jennifer M. Hulett
- Sinclair School of Nursing, University of Missouri, Columbia, MO, USA
- Ellis Fischel Cancer Center, University of Missouri, Columbia, MO, USA
| | | | - Sarah Thompson
- Sinclair School of Nursing, University of Missouri, Columbia, MO, USA
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14
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Warren I, Moeller MM, Guiggey D, Chiang A, Maloy M, Ogoke O, Groth T, Mon T, Meamardoost S, Liu X, Thompson S, Szeglowski A, Thompson R, Chen P, Paulmurugan R, Yarmush ML, Kidambi S, Parashurama N. FOXA1/2 depletion drives global reprogramming of differentiation state and metabolism in a human liver cell line and inhibits differentiation of human stem cell-derived hepatic progenitor cells. FASEB J 2023; 37:e22652. [PMID: 36515690 DOI: 10.1096/fj.202101506rrr] [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: 09/22/2021] [Revised: 10/28/2022] [Accepted: 10/31/2022] [Indexed: 12/15/2022]
Abstract
FOXA factors are critical members of the developmental gene regulatory network (GRN) composed of master transcription factors (TF) which regulate murine cell fate and metabolism in the gut and liver. How FOXA factors dictate human liver cell fate, differentiation, and simultaneously regulate metabolic pathways is poorly understood. Here, we aimed to determine the role of FOXA2 (and FOXA1 which is believed to compensate for FOXA2) in controlling hepatic differentiation and cell metabolism in a human hepatic cell line (HepG2). siRNA mediated knockdown of FOXA1/2 in HepG2 cells significantly downregulated albumin (p < .05) and GRN TF gene expression (HNF4α, HEX, HNF1ß, TBX3) (p < .05) and significantly upregulated endoderm/gut/hepatic endoderm markers (goosecoid [GSC], FOXA3, and GATA4), gut TF (CDX2), pluripotent TF (NANOG), and neuroectodermal TF (PAX6) (p < .05), all consistent with partial/transient reprograming. shFOXA1/2 targeting resulted in similar findings and demonstrated evidence of reversibility of phenotype. RNA-seq followed by bioinformatic analysis of shFOXA1/2 knockdown HepG2 cells demonstrated 235 significant downregulated genes and 448 upregulated genes, including upregulation of markers for alternate germ layers lineages (cardiac, endothelial, muscle) and neurectoderm (eye, neural). We found widespread downregulation of glycolysis, citric acid cycle, mitochondrial genes, and alterations in lipid metabolism, pentose phosphate pathway, and ketogenesis. Functional metabolic analysis agreed with these findings, demonstrating significantly diminished glycolysis and mitochondrial respiration, with concomitant accumulation of lipid droplets. We hypothesized that FOXA1/2 inhibit the initiation of human liver differentiation in vitro. During human pluripotent stem cells (hPSC)-hepatic differentiation, siRNA knockdown demonstrated de-differentiation and unexpectedly, activation of pluripotency factors and neuroectoderm. shRNA knockdown demonstrated similar results and activation of SOX9 (hepatobiliary). These results demonstrate that FOXA1/2 controls hepatic and developmental GRN, and their knockdown leads to reprogramming of both differentiation and metabolism, with applications in studies of cancer, differentiation, and organogenesis.
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Affiliation(s)
- Iyan Warren
- Department of Chemical and Biological Engineering, University at Buffalo (State University of New York), Buffalo, New York, USA
| | - Michael M Moeller
- Department of Chemical and Biomolecular Engineering, University of Nebraska- Lincoln, Lincoln, Nebraska, USA
| | - Daniel Guiggey
- Department of Chemical and Biological Engineering, University at Buffalo (State University of New York), Buffalo, New York, USA
| | - Alexander Chiang
- Department of Chemical and Biological Engineering, University at Buffalo (State University of New York), Buffalo, New York, USA
| | - Mitchell Maloy
- Department of Chemical and Biological Engineering, University at Buffalo (State University of New York), Buffalo, New York, USA
| | - Ogechi Ogoke
- Department of Chemical and Biological Engineering, University at Buffalo (State University of New York), Buffalo, New York, USA
| | - Theodore Groth
- Department of Chemical and Biological Engineering, University at Buffalo (State University of New York), Buffalo, New York, USA
| | - Tala Mon
- Department of Chemical and Biological Engineering, University at Buffalo (State University of New York), Buffalo, New York, USA
| | - Saber Meamardoost
- Department of Chemical and Biological Engineering, University at Buffalo (State University of New York), Buffalo, New York, USA
| | - Xiaojun Liu
- Department of Chemical and Biological Engineering, University at Buffalo (State University of New York), Buffalo, New York, USA
| | - Sarah Thompson
- Department of Chemical and Biological Engineering, University at Buffalo (State University of New York), Buffalo, New York, USA
| | - Antoni Szeglowski
- Department of Chemical and Biological Engineering, University at Buffalo (State University of New York), Buffalo, New York, USA
| | - Ryan Thompson
- Department of Chemical and Biological Engineering, University at Buffalo (State University of New York), Buffalo, New York, USA
| | - Peter Chen
- Department of Biomedical Engineering, University at Buffalo (State University of New York), Buffalo, New York, USA
| | - Ramasamy Paulmurugan
- Department of Radiology, Canary Center for Early Cancer Detection and the Molecular Imaging Program at Stanford, Stanford University, Palo Alto, California, USA
| | - Martin L Yarmush
- Center for Engineering in Medicine and Surgery, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, USA.,Department of Biomedical Engineering, Rutgers University, Piscataway, New Jersey, USA
| | - Srivatsan Kidambi
- Department of Chemical and Biomolecular Engineering, University of Nebraska- Lincoln, Lincoln, Nebraska, USA
| | - Natesh Parashurama
- Department of Chemical and Biological Engineering, University at Buffalo (State University of New York), Buffalo, New York, USA.,Department of Biomedical Engineering, University at Buffalo (State University of New York), Buffalo, New York, USA.,Clinical and Translation Research Center (CTRC), University at Buffalo (State University of New York), Buffalo, New York, USA
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15
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Carvalho F, Stone J, Munoz-Mozas G, Mendes C, Thompson S, Jupp P, Appadu L, Collantes L, Odlin M, Dallimore P, Tighe J, Rixen-Osterbo J, McLaren N, Martin R. Advanced nursing practice: a review of scopes of practice in cancer care. Br J Nurs 2022; 31:1104-1110. [PMID: 36416635 DOI: 10.12968/bjon.2022.31.21.1104] [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] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
The establishment of advanced nurse practitioners (ANPs) has expanded considerably in recent years and shown to result in substantial contributions to numerous fields of health care. Due to advancements in treatments and innovations in medicine, patients with cancer are living longer, requiring a multifactorial holistic approach in which ANPs, due to their skills and knowledge, can be best utilised, as they are able to provide the expert care required at various stages of the patient journey. This article explores scopes of practice from ANPs working with oncology patients in a tertiary cancer centre, making explicit their roles, in addition to highlighting experienced challenges and future directions of care.
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Affiliation(s)
- Filipe Carvalho
- Advanced Nurse Practitioner in Colorectal Surgery, Department of Colorectal Surgery, The Royal Marsden Hospital NHS Foundation Trust, London
| | - Joanna Stone
- Lead Nurse/Advanced Nurse Practitioner, Children and Young People's Unit, The Royal Marsden Hospital NHS Foundation Trust, London
| | - Gema Munoz-Mozas
- Advanced Nurse Practitioner and Lead Vascular Access Nurse, The Royal Marsden Hospital NHS Foundation Trust, London
| | - Catia Mendes
- Acute Oncology Advanced Nurse Practitioner, The Royal Marsden Hospital NHS Foundation Trust, London
| | - Sarah Thompson
- Lead Advanced Nurse Practitioner in Haemato-oncology, The Royal Marsden Hospital NHS Foundation Trust, London
| | - Philippa Jupp
- Gynaecology Medical Oncology Advanced Nurse Practitioner, The Royal Marsden Hospital NHS Foundation Trust, London
| | - Laura Appadu
- Gynaecology Medical Oncology Advanced Nurse Practitioner, The Royal Marsden Hospital NHS Foundation Trust, London
| | - Laura Collantes
- Advanced Nurse Practitioner in Systemic Anti-Cancer Treatment, The Royal Marsden Hospital NHS Foundation Trust, London
| | - Michaela Odlin
- Breast Advanced Nurse Practitioner, The Royal Marsden Hospital NHS Foundation Trust, London
| | - Paula Dallimore
- Breast Advanced Nurse Practitioner, The Royal Marsden Hospital NHS Foundation Trust, London
| | - James Tighe
- Advanced Nurse Practitioner - Liaison Psychiatry, The Royal Marsden Hospital NHS Foundation Trust, London
| | - Jorn Rixen-Osterbo
- Advanced Nurse Practitioner in Head and Neck and Thyroid Surgery, The Royal Marsden Hospital NHS Foundation Trust, London
| | - Nuala McLaren
- Advanced Nurse Practitioner in Upper Gastro-Intestinal and Hepatobiliary Surgery, The Royal Marsden Hospital NHS Foundation Trust, London
| | - Rebecca Martin
- Lead Nurse/Advanced Nurse Practitioner in Urology, The Royal Marsden Hospital NHS Foundation Trust, London
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16
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Haase S, Banerjee K, Mujeeb AA, Hartlage CS, Núñez FM, Núñez FJ, Alghamri MS, Kadiyala P, Carney S, Barissi MN, Taher AW, Brumley EK, Thompson S, Dreyer JT, Alindogan CT, Garcia-Fabiani MB, Comba A, Venneti S, Ravikumar V, Koschmann C, Carcaboso ÁM, Vinci M, Rao A, Yu JS, Lowenstein PR, Castro MG. H3.3-G34 mutations impair DNA repair and promote cGAS/STING-mediated immune responses in pediatric high-grade glioma models. J Clin Invest 2022; 132:154229. [PMID: 36125896 PMCID: PMC9663161 DOI: 10.1172/jci154229] [Citation(s) in RCA: 21] [Impact Index Per Article: 10.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/13/2021] [Accepted: 09/13/2022] [Indexed: 11/23/2022] Open
Abstract
Pediatric high-grade gliomas (pHGGs) are the leading cause of cancer-related deaths in children in the USA. Sixteen percent of hemispheric pediatric and young adult HGGs encode Gly34Arg/Val substitutions in the histone H3.3 (H3.3-G34R/V). The mechanisms by which H3.3-G34R/V drive malignancy and therapeutic resistance in pHGGs remain unknown. Using a syngeneic, genetically engineered mouse model (GEMM) and human pHGG cells encoding H3.3-G34R, we demonstrate that this mutation led to the downregulation of DNA repair pathways. This resulted in enhanced susceptibility to DNA damage and inhibition of the DNA damage response (DDR). We demonstrate that genetic instability resulting from improper DNA repair in G34R-mutant pHGG led to the accumulation of extrachromosomal DNA, which activated the cyclic GMP-AMP synthase/stimulator of IFN genes (cGAS/STING) pathway, inducing the release of immune-stimulatory cytokines. We treated H3.3-G34R pHGG-bearing mice with a combination of radiotherapy (RT) and DNA damage response inhibitors (DDRi) (i.e., the blood-brain barrier-permeable PARP inhibitor pamiparib and the cell-cycle checkpoint CHK1/2 inhibitor AZD7762), and these combinations resulted in long-term survival for approximately 50% of the mice. Moreover, the addition of a STING agonist (diABZl) enhanced the therapeutic efficacy of these treatments. Long-term survivors developed immunological memory, preventing pHGG growth upon rechallenge. These results demonstrate that DDRi and STING agonists in combination with RT induced immune-mediated therapeutic efficacy in G34-mutant pHGG.
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Affiliation(s)
- Santiago Haase
- Department of Neurosurgery
- Department of Cell and Developmental Biology
| | - Kaushik Banerjee
- Department of Neurosurgery
- Department of Cell and Developmental Biology
| | - Anzar A. Mujeeb
- Department of Neurosurgery
- Department of Cell and Developmental Biology
| | | | - Fernando M. Núñez
- Department of Neurosurgery
- Department of Cell and Developmental Biology
| | - Felipe J. Núñez
- Department of Neurosurgery
- Department of Cell and Developmental Biology
| | | | - Padma Kadiyala
- Department of Neurosurgery
- Department of Cell and Developmental Biology
| | - Stephen Carney
- Department of Neurosurgery
- Department of Cell and Developmental Biology
| | - Marcus N. Barissi
- Department of Neurosurgery
- Department of Cell and Developmental Biology
| | - Ayman W. Taher
- Department of Neurosurgery
- Department of Cell and Developmental Biology
| | - Emily K. Brumley
- Department of Neurosurgery
- Department of Cell and Developmental Biology
| | - Sarah Thompson
- Department of Neurosurgery
- Department of Cell and Developmental Biology
| | - Justin T. Dreyer
- Department of Neurosurgery
- Department of Cell and Developmental Biology
| | | | | | - Andrea Comba
- Department of Neurosurgery
- Department of Cell and Developmental Biology
| | | | | | - Carl Koschmann
- Division of Pediatric Hematology/Oncology, Department of Pediatrics, C.S. Mott Children’s Hospital, University of Michigan, Ann Arbor, Michigan, USA
| | | | - Maria Vinci
- Department of Onco-Haematology, Gene and Cell Therapy, Bambino Gesù Children’s Hospital-IRCCS, Rome, Italy
| | - Arvind Rao
- Departments of Bioinformatics and Computational Biology, and
- Radiation Oncology, University of Michigan, Ann Arbor, Michigan, USA
| | - Jennifer S. Yu
- Department of Cancer Biology, Lerner Research Institute and
- Department of Radiation Oncology, Taussig Cancer Institute, Cleveland Clinic, Cleveland, Ohio, USA
| | | | - Maria G. Castro
- Department of Neurosurgery
- Department of Cell and Developmental Biology
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17
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Cash RFH, Hendrikse J, Fernando KB, Thompson S, Suo C, Fornito A, Yücel M, Rogasch NC, Zalesky A, Coxon JP. Personalized brain stimulation of memory networks. Brain Stimul 2022; 15:1300-1304. [PMID: 36113762 DOI: 10.1016/j.brs.2022.09.004] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [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: 06/06/2022] [Revised: 09/08/2022] [Accepted: 09/12/2022] [Indexed: 11/30/2022] Open
Abstract
BACKGROUND The finding that transcranial magnetic stimulation (TMS) can enhance memory performance via stimulation of parietal sites within the Cortical-Hippocampal Network counts as one of the most exciting findings in this field in the past decade. However, the first independent effort aiming to fully replicate this finding found no discernible influence of TMS on memory performance. OBJECTIVE We examined whether this might relate to interindividual spatial variation in brain connectivity architecture, and the capacity of personalisation methodologies to overcome the noise inherent across independent scanners and cohorts. METHODS We implemented recently detailed personalisation methodology to retrospectively compute individual-specific parietal targets and then examined relation to TMS outcomes. RESULTS Closer proximity between actual and novel fMRI-personalized targets associated with greater improvement in memory performance. CONCLUSION These findings demonstrate the potential importance of aligning brain stimulation targets according to individual-specific differences in brain connectivity, and extend upon recent findings in prefrontal cortex.
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Affiliation(s)
- Robin F H Cash
- Melbourne Neuropsychiatry Centre, The University of Melbourne, Victoria, 3010, Australia; Department of Biomedical Engineering, The University of Melbourne, Victoria, 3010, Australia.
| | - Joshua Hendrikse
- Turner Institute for Brain and Mental Health and School of Psychological Sciences, Monash University, Melbourne, Victoria, Australia
| | - Kavisha B Fernando
- Melbourne Neuropsychiatry Centre, The University of Melbourne, Victoria, 3010, Australia
| | - Sarah Thompson
- Turner Institute for Brain and Mental Health and School of Psychological Sciences, Monash University, Melbourne, Victoria, Australia
| | - Chao Suo
- Turner Institute for Brain and Mental Health and School of Psychological Sciences, Monash University, Melbourne, Victoria, Australia
| | - Alex Fornito
- Turner Institute for Brain and Mental Health and School of Psychological Sciences, Monash University, Melbourne, Victoria, Australia
| | - Murat Yücel
- Turner Institute for Brain and Mental Health and School of Psychological Sciences, Monash University, Melbourne, Victoria, Australia
| | - Nigel C Rogasch
- Turner Institute for Brain and Mental Health and School of Psychological Sciences, Monash University, Melbourne, Victoria, Australia; Hopwood Centre for Neurobiology, Lifelong Health Theme, South Australian Health and Medical Research Institute (SAHMRI), Australia; Discipline of Psychiatry, Adelaide Medical School, University of Adelaide, Australia
| | - Andrew Zalesky
- Melbourne Neuropsychiatry Centre, The University of Melbourne, Victoria, 3010, Australia; Department of Biomedical Engineering, The University of Melbourne, Victoria, 3010, Australia
| | - James P Coxon
- Turner Institute for Brain and Mental Health and School of Psychological Sciences, Monash University, Melbourne, Victoria, Australia
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18
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Saunders L, Edwards P, Taylor J, Nye D, Grinter D, Allan D, Thompson S. A temperature-dependent flexible proton-transfer system. Acta Cryst Sect A 2022. [DOI: 10.1107/s2053273322090854] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 03/19/2023]
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19
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Thompson S, Teixeira-Dias F, Paulino M, Hamilton A. Predictions on multi-class terminal ballistics datasets using conditional Generative Adversarial Networks. Neural Netw 2022; 154:425-440. [DOI: 10.1016/j.neunet.2022.07.034] [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] [Received: 02/01/2022] [Revised: 07/08/2022] [Accepted: 07/26/2022] [Indexed: 11/26/2022]
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20
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Link C, Qi S, Thompson S, DeIure A, McKillop S, Watson L. Understanding the Symptoms and Concerns of Adolescents and Young Adults with Cancer in Alberta: A Comparative Cohort Study Using Patient-Reported Outcomes. J Adolesc Young Adult Oncol 2022; 12:199-206. [PMID: 35749720 PMCID: PMC10124169 DOI: 10.1089/jayao.2021.0213] [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] [Indexed: 11/13/2022] Open
Abstract
Purpose: Adolescents and young adults (AYAs) with cancer are in a unique situation due to their age and developmental stage in life and may have different symptoms and concerns than older patients. Patient-Reported Outcomes (PROs) questionnaires, routinely used in Alberta, can help identify the distinct needs of AYAs. We aimed to compare PROs data for AYAs and older adults (OAs) to better understand how the concerns of AYAs differ, which is key to providing individualized care and creating targeted programming and system-level change. Methods: Retrospective data were collected for two patient cohorts who completed at least one PROs questionnaire between October 1, 2019 and April 1, 2020. The AYA cohort was aged 18-39, and the OA cohort was aged 40 and older. Symptoms were compared using mean scores and multiple linear regression, and concerns were compared using counts and multivariate negative binomial regression. Results: AYAs had significantly higher mean scores on depression and anxiety, compared to OAs, and lower mean scores for most physical symptoms. They indicated significantly more concerns in the Emotional and Social/Family/Spiritual domains, and were over three times more likely to indicate Work/School as a concern. Conclusion: AYAs with cancer have distinct concerns that should be addressed to ensure comprehensive, quality cancer care for this population. PROs data are useful in identifying needs and facilitating evidence-based, data-driven change at all levels of the health care system.
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Affiliation(s)
- Claire Link
- Applied Research and Patient Experience, Cancer Care Alberta, Alberta Health Services, Calgary, Canada
| | - Siwei Qi
- Applied Research and Patient Experience, Cancer Care Alberta, Alberta Health Services, Calgary, Canada
| | - Sarah Thompson
- Applied Research and Patient Experience, Cancer Care Alberta, Alberta Health Services, Calgary, Canada
| | - Andrea DeIure
- Applied Research and Patient Experience, Cancer Care Alberta, Alberta Health Services, Calgary, Canada
| | - Sarah McKillop
- Faculty of Medicine & Dentistry - Pediatrics, University of Alberta, Edmonton, Canada.,Cross Cancer Institute, Cancer Care Alberta, Alberta Health Services, Edmonton, Canada
| | - Linda Watson
- Applied Research and Patient Experience, Cancer Care Alberta, Alberta Health Services, Calgary, Canada.,Faculty of Nursing, University of Calgary, Calgary, Canada
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21
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Thompson S, Gan J, Oppenheimer M. An unusual cause of urinary incontinence in a nonagenarian. BMJ 2022; 377:e067650. [PMID: 35738579 DOI: 10.1136/bmj-2021-067650] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Affiliation(s)
- S Thompson
- Department of clinical geratology, John Radcliffe Hospital, Oxford University Hospitals, Oxford, UK
| | - J Gan
- Department of clinical geratology, John Radcliffe Hospital, Oxford University Hospitals, Oxford, UK
| | - M Oppenheimer
- Department of clinical geratology, John Radcliffe Hospital, Oxford University Hospitals, Oxford, UK
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Nedderman W, Thompson S, Takahashi E, Knavel E, Reisenauer C, Bendel E. Abstract No. 38 Intracardiac shunts among patients undergoing oil-based contrast lymphangiography: prevalence by echocardiography and rate of systemic arterial embolic complications. J Vasc Interv Radiol 2022. [DOI: 10.1016/j.jvir.2022.03.119] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
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Vanga BR, Panda P, Shah AS, Thompson S, Woolley RH, Ridgway HJ, Mundy DC, Bulman S. DNA metabarcoding reveals high relative abundance of trunk disease fungi in grapevines from Marlborough, New Zealand. BMC Microbiol 2022; 22:126. [PMID: 35538413 PMCID: PMC9088082 DOI: 10.1186/s12866-022-02520-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2021] [Accepted: 04/01/2022] [Indexed: 01/22/2023] Open
Abstract
Grapevine trunk diseases (GTDs) are a threat to grape production worldwide, with a diverse collection of fungal species implicated in disease onset. Due to the long-term and complex nature of GTDs, simultaneous detection of multiple microbial species can enhance understanding of disease development. We used DNA metabarcoding of ribosomal internal transcribed spacer 1 (ITS1) sequences, supported by specific PCR and microbial isolation, to establish the presence of trunk pathogens across 11 vineyards (11–26 years old) over three years in Marlborough, the largest wine producing region in New Zealand. Using a reference database of trunk pathogen sequences, species previously associated with GTD, such as Cadophora luteo-olivacea, Diplodia seriata, Diplodia mutila, Neofusicoccum australe, and Seimatosporium vitis, were identified as highly represented across the vineyard region. The well-known pathogens Phaeomoniella chlamydospora and Eutypa lata had especially high relative abundance across the dataset, with P. chlamydospora reads present between 22 and 84% (average 52%) across the vineyards. Screening of sequences against broader, publicly available databases revealed further fungal species within families and orders known to contain pathogens, many of which appeared to be endemic to New Zealand. The presence of several wood-rotting basidiomycetes (mostly Hymenochaetales) was detected for the first time in the Marlborough vineyard region, notably, the native Inonotus nothofagii which was present at 1–2% relative abundance in two vineyards.
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Affiliation(s)
- Bhanupratap R Vanga
- Canterbury Agriculture and Science Centre, The New Zealand Institute for Plant and Food Research Limited, Gerald St, Lincoln, 7608, New Zealand
| | - Preeti Panda
- Canterbury Agriculture and Science Centre, The New Zealand Institute for Plant and Food Research Limited, Gerald St, Lincoln, 7608, New Zealand
| | - Anish S Shah
- Department of Pest Management and Conservation, Faculty of Agriculture and Life Sciences, Lincoln University, P O Box 84, Lincoln, 7647, New Zealand
| | - Sarah Thompson
- Canterbury Agriculture and Science Centre, The New Zealand Institute for Plant and Food Research Limited, Gerald St, Lincoln, 7608, New Zealand
| | - Rebecca H Woolley
- Marlborough Wine Research Centre, The New Zealand Institute for Plant and Food Research Limited, PO Box 845, Blenheim, New Zealand
| | - Hayley J Ridgway
- Canterbury Agriculture and Science Centre, The New Zealand Institute for Plant and Food Research Limited, Gerald St, Lincoln, 7608, New Zealand.,Department of Pest Management and Conservation, Faculty of Agriculture and Life Sciences, Lincoln University, P O Box 84, Lincoln, 7647, New Zealand
| | - Dion C Mundy
- Marlborough Wine Research Centre, The New Zealand Institute for Plant and Food Research Limited, PO Box 845, Blenheim, New Zealand
| | - Simon Bulman
- Canterbury Agriculture and Science Centre, The New Zealand Institute for Plant and Food Research Limited, Gerald St, Lincoln, 7608, New Zealand. .,Better Border Biosecurity (B3), Lincoln, 7608, New Zealand.
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Morenas-Rodríguez E, Li Y, Nuscher B, Franzmeier N, Xiong C, Suárez-Calvet M, Fagan AM, Schultz S, Gordon BA, Benzinger TLS, Hassenstab J, McDade E, Feederle R, Karch CM, Schlepckow K, Morris JC, Kleinberger G, Nellgard B, Vöglein J, Blennow K, Zetterberg H, Ewers M, Jucker M, Levin J, Bateman RJ, Haass C, Allegri R, Araki A, Barthelemy N, Bechara J, Berman S, Bodge C, Brandon S, Brooks W(B, Brosch J, Buck J, Buckles V, Carter K, Cash L, Chen C, Chhatwal J, Chrem P, Chua J, Chui H, Cruchaga C, Day GS, De La Cruz C, Denner D, Diffenbacher A, Dincer A, Donahue T, Douglas J, Duong D, Egido N, Esposito B, Farlow M, Feldman B, Fitzpatrick C, Flores S, Fox N, Franklin E, Friedrichsen N, Fujii H, Gardener S, Ghetti B, Goate A, Goldberg S, Goldman J, Gonzalez A, Gräber-Sultan S, Graff-Radford N, Graham M, Gray J, Gremminger E, Grilo M, Groves A, Häsler L, Hellm C, Herries E, Hoechst-Swisher L, Hofmann A, Holtzman D, Hornbeck R, Igor Y, Ihara R, Ikeuchi T, Ikonomovic S, Ishii K, Jack C, Jerome G, Johnson E, Käser S, Kasuga K, Keefe S, Klunk W(B, Koeppe R, Koudelis D, Kuder-Buletta E, Laske C, Levey A, Lopez O, Marsh J, Martinez R, Martins R, Mason NS, Masters C, Mawuenyega K, McCullough A, Mejia A, MountzMD J, Mummery C, Nadkarni N, Nagamatsu A, Neimeyer K, Niimi Y, Noble J, Norton J, Nuscher B, O'Connor A, Obermüller U, Patira R, Perrin R, Ping L, Preische O, Renton A, Ringman J, Salloway S, Schofield P, Senda M, Seyfried N, Shady K, Shimada H, Sigurdson W, Smith J, Smith L, Snitz B, Sohrabi H, Stephens S, Taddei K, Thompson S, Wang P, Wang Q, Weamer E, Xu J, Xu X. Soluble TREM2 in CSF and its association with other biomarkers and cognition in autosomal-dominant Alzheimer's disease: a longitudinal observational study. Lancet Neurol 2022; 21:329-341. [PMID: 35305339 PMCID: PMC8926925 DOI: 10.1016/s1474-4422(22)00027-8] [Citation(s) in RCA: 67] [Impact Index Per Article: 33.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2021] [Revised: 01/05/2022] [Accepted: 01/10/2022] [Indexed: 02/08/2023]
Abstract
BACKGROUND Therapeutic modulation of TREM2-dependent microglial function might provide an additional strategy to slow the progression of Alzheimer's disease. Although studies in animal models suggest that TREM2 is protective against Alzheimer's pathology, its effect on tau pathology and its potential beneficial role in people with Alzheimer's disease is still unclear. Our aim was to study associations between the dynamics of soluble TREM2, as a biomarker of TREM2 signalling, and amyloid β (Aβ) deposition, tau-related pathology, neuroimaging markers, and cognitive decline, during the progression of autosomal dominant Alzheimer's disease. METHODS We did a longitudinal analysis of data from the Dominantly Inherited Alzheimer Network (DIAN) observational study, which includes families with a history of autosomal dominant Alzheimer's disease. Participants aged over 18 years who were enrolled in DIAN between Jan 1, 2009, and July 31, 2019, were categorised as either carriers of pathogenic variants in PSEN1, PSEN2, and APP genes (n=155) or non-carriers (n=93). We measured amounts of cleaved soluble TREM2 using a novel immunoassay in CSF samples obtained every 2 years from participants who were asymptomatic (Clinical Dementia Rating [CDR]=0) and annually for those who were symptomatic (CDR>0). CSF concentrations of Aβ40, Aβ42, total tau (t-tau), and tau phosphorylated on threonine 181 (p-tau) were measured by validated immunoassays. Predefined neuroimaging measurements were total cortical uptake of Pittsburgh compound B PET (PiB-PET), cortical thickness in the precuneus ascertained by MRI, and hippocampal volume determined by MRI. Cognition was measured using a validated cognitive composite (including DIAN word list test, logical memory delayed recall, digit symbol coding test [total score], and minimental status examination). We based our statistical analysis on univariate and bivariate linear mixed effects models. FINDINGS In carriers of pathogenic variants, a high amyloid burden at baseline, represented by low CSF Aβ42 (β=-4·28 × 10-2 [SE 0·013], p=0·0012), but not high cortical uptake in PiB-PET (β=-5·51 × 10-3 [0·011], p=0·63), was the only predictor of an augmented annual rate of subsequent increase in soluble TREM2. Augmented annual rates of increase in soluble TREM2 were associated with a diminished rate of decrease in amyloid deposition, as measured by Aβ42 in CSF (r=0·56 [0·22], p=0·011), in presymptomatic carriers of pathogenic variants, and with diminished annual rate of increase in PiB-PET (r=-0·67 [0·25], p=0·0060) in symptomatic carriers of pathogenic variants. Presymptomatic carriers of pathogenic variants with annual rates of increase in soluble TREM2 lower than the median showed a correlation between enhanced annual rates of increase in p-tau in CSF and augmented annual rates of increase in PiB-PET signal (r=0·45 [0·21], p=0·035), that was not observed in those with rates of increase in soluble TREM2 higher than the median. Furthermore, presymptomatic carriers of pathogenic variants with rates of increase in soluble TREM2 above or below the median had opposite associations between Aβ42 in CSF and PiB-PET uptake when assessed longitudinally. Augmented annual rates of increase in soluble TREM2 in presymptomatic carriers of pathogenic variants correlated with decreased cortical shrinkage in the precuneus (r=0·46 [0·22]), p=0·040) and diminished cognitive decline (r=0·67 [0·22], p=0·0020). INTERPRETATION Our findings in autosomal dominant Alzheimer's disease position the TREM2 response within the amyloid cascade immediately after the first pathological changes in Aβ aggregation and further support the role of TREM2 on Aβ plaque deposition and compaction. Furthermore, these findings underpin a beneficial effect of TREM2 on Aβ deposition, Aβ-dependent tau pathology, cortical shrinkage, and cognitive decline. Soluble TREM2 could, therefore, be a key marker for clinical trial design and interpretation. Efforts to develop TREM2-boosting therapies are ongoing. FUNDING German Research Foundation, US National Institutes of Health.
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Affiliation(s)
- Estrella Morenas-Rodríguez
- German Center for Neurodegenerative Diseases, Munich, Germany; Metabolic Biochemistry, Biomedical Center, Faculty of Medicine, Ludwig-Maximilians University, Munich, Germany.
| | - Yan Li
- Division of Biostatistics, Washington University School of Medicine, St Louis, MO, USA
| | - Brigitte Nuscher
- German Center for Neurodegenerative Diseases, Munich, Germany,Metabolic Biochemistry, Biomedical Center, Faculty of Medicine, Ludwig-Maximilians University, Munich, Germany
| | - Nicolai Franzmeier
- Institute for Stroke and Dementia Research, Klinikum der Universität München, Ludwig-Maximilians University, Munich, Germany
| | - Chengjie Xiong
- Division of Biostatistics, Washington University School of Medicine, St Louis, MO, USA
| | - Marc Suárez-Calvet
- Barcelonaβeta Brain Research Center, Pasqual Maragall Foundation, Barcelona, Spain,Servei de Neurologia, Hospital del Mar Medical Research Institute, Barcelona, Spain,Centro de Investigación Biomédica en Red de Fragilidad y Envejecimiento Saludable, Madrid, Spain
| | - Anne M Fagan
- Department of Neurology, Washington University School of Medicine, St Louis, MO, USA
| | - Stephanie Schultz
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, St Louis, MO, USA
| | - Brian A Gordon
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, St Louis, MO, USA
| | - Tammie L S Benzinger
- Mallinckrodt Institute of Radiology, Washington University School of Medicine, St Louis, MO, USA
| | - Jason Hassenstab
- Department of Neurology, Washington University School of Medicine, St Louis, MO, USA
| | - Eric McDade
- Department of Neurology, Washington University School of Medicine, St Louis, MO, USA
| | - Regina Feederle
- German Center for Neurodegenerative Diseases, Munich, Germany,Munich Cluster for Systems Neurology (SyNergy), Munich, Germany,Institute for Diabetes and Obesity, Monoclonal Antibody Core Facility, Helmholtz Center, Munich, Germany,German Research Center for Environmental Health, Neuherberg, Germany
| | - Celeste M Karch
- Department of Psychiatry, Washington University School of Medicine, St Louis, MO, USA
| | - Kai Schlepckow
- German Center for Neurodegenerative Diseases, Munich, Germany,Metabolic Biochemistry, Biomedical Center, Faculty of Medicine, Ludwig-Maximilians University, Munich, Germany
| | - John C Morris
- Department of Neurology, Washington University School of Medicine, St Louis, MO, USA
| | - Gernot Kleinberger
- German Center for Neurodegenerative Diseases, Munich, Germany,Metabolic Biochemistry, Biomedical Center, Faculty of Medicine, Ludwig-Maximilians University, Munich, Germany
| | - Bengt Nellgard
- Department of Anesthesiology and Intensive Care, Sahlgrenska University Hospital, Mölndal, Sweden,Institute of Clinical Sciences, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden
| | - Jonathan Vöglein
- German Center for Neurodegenerative Diseases, Munich, Germany,Department of Neurology, University Hospital of Munich, Ludwig-Maximilians University, Munich, Germany
| | - Kaj Blennow
- Department of Psychiatry and Neurochemistry, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden,Clinical Neurochemistry Laboratory, Sahlgrenska University Hospital, Mölndal, Sweden
| | - Henrik Zetterberg
- Department of Psychiatry and Neurochemistry, Sahlgrenska Academy, University of Gothenburg, Gothenburg, Sweden,Clinical Neurochemistry Laboratory, Sahlgrenska University Hospital, Mölndal, Sweden,Department of Neurodegenerative Disease, UCL Queens Square Institute of Neurology, University College London, London, UK,UK Dementia Research Institute, University College London, London, UK,Hong Kong Center for Neurodegenerative Diseases, Hong Kong Special Administrative Region, China
| | - Michael Ewers
- German Center for Neurodegenerative Diseases, Munich, Germany,Institute for Stroke and Dementia Research, Klinikum der Universität München, Ludwig-Maximilians University, Munich, Germany
| | - Mathias Jucker
- German Center for Neurodegenerative Diseases, Tübingen, Germany,Department of Cellular Neurology, Hertie Institute for Clinical Brain Research, Tübingen, Germany
| | - Johannes Levin
- German Center for Neurodegenerative Diseases, Munich, Germany,Department of Neurology, University Hospital of Munich, Ludwig-Maximilians University, Munich, Germany,Munich Cluster for Systems Neurology (SyNergy), Munich, Germany
| | - Randall J Bateman
- Department of Neurology, Washington University School of Medicine, St Louis, MO, USA
| | - Christian Haass
- German Center for Neurodegenerative Diseases, Munich, Germany,Metabolic Biochemistry, Biomedical Center, Faculty of Medicine, Ludwig-Maximilians University, Munich, Germany,Munich Cluster for Systems Neurology (SyNergy), Munich, Germany
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DeVile J, Guy L, Clark C, Thompson S, Roy P. Outcomes of an exercise medicine programme for patients undergoing cancer treatment and its adaptation to a virtual model during COVID-19. Physiotherapy 2022. [PMCID: PMC8848153 DOI: 10.1016/j.physio.2021.12.046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Sanna A, Thompson S, Zajac J, Whitty K. Evaluation of palm-oil fly ash derived lithium silicate for CO2 sorption under simulated gasification conditions. J CO2 UTIL 2022. [DOI: 10.1016/j.jcou.2021.101826] [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: 10/19/2022]
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Shankar A, Cisneros INH, Thompson S, Graham CH, Powers DR. A heterothermic spectrum in hummingbirds. J Exp Biol 2022; 225:273909. [PMID: 34989393 DOI: 10.1242/jeb.243208] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [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: 07/20/2021] [Accepted: 12/29/2021] [Indexed: 11/20/2022]
Abstract
Many endotherms use torpor, saving energy by a controlled reduction of their body temperature and metabolic rate. Some species (e.g., arctic ground squirrels, hummingbirds) enter deep torpor, dropping their body temperatures by 23-37°C, while others can only enter shallow torpor (e.g., pigeons, 3-10°C reductions). However, deep torpor in mammals can increase predation risk (unless animals are in burrows or caves), inhibit immune function, and result in sleep deprivation, so even for species that can enter deep torpor, facultative shallow torpor might help balance energy savings with these potential costs. Deep torpor occurs in three avian orders, but the trade-offs of deep torpor in birds are unknown. Although the literature hints that some bird species (mousebirds and perhaps hummingbirds) can use both shallow and deep torpor, little empirical evidence of such an avian heterothermy spectrum within species exists. We infrared imaged three hummingbird species that are known to use deep torpor, under natural temperature and light cycles, to test if they were also capable of shallow torpor. All three species used both deep and shallow torpor, often on the same night. Depending on the species, they used shallow torpor for 5-35% of the night. The presence of a heterothermic spectrum in these bird species indicates a capacity for fine-scale physiological and genetic regulation of avian torpid metabolism.
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Affiliation(s)
- Anusha Shankar
- Stony Brook University, Stony Brook, NY 11794, USA.,Swiss Federal Research Institute (WSL), Birmensdorf, CH-8903, Switzerland
| | | | | | - Catherine H Graham
- Stony Brook University, Stony Brook, NY 11794, USA.,Swiss Federal Research Institute (WSL), Birmensdorf, CH-8903, Switzerland
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Thompson S, Neill T, Mahaffee W, Miles T. Bridging the gap between powdery mildew genomics and valuable culturing methods of Erysiphe necator and Podosphaera aphanis. BIO Web Conf 2022. [DOI: 10.1051/bioconf/20225002012] [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: 11/14/2022] Open
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Hendrikse J, Chye Y, Thompson S, Rogasch NC, Suo C, Coxon JP, Yücel M. Regular aerobic exercise is positively associated with hippocampal structure and function in young and middle-aged adults. Hippocampus 2021; 32:137-152. [PMID: 34961996 DOI: 10.1002/hipo.23397] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.7] [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: 09/02/2020] [Revised: 11/03/2021] [Accepted: 12/05/2021] [Indexed: 01/21/2023]
Abstract
Regular exercise has numerous benefits for brain health, including the structure and function of the hippocampus. The hippocampus plays a critical role in memory function, and is altered in a number of psychiatric disorders associated with memory impairments (e.g., depression and schizophrenia), as well as healthy aging. While many studies have focused on how regular exercise may improve hippocampal integrity in older individuals, less is known about these effects in young to middle-aged adults. Therefore, we assessed the associations of regular exercise and cardiorespiratory fitness with hippocampal structure and function in these age groups. We recruited 40 healthy young to middle-aged adults, comprised of two groups (n = 20) who self-reported either high or low levels of exercise, according to World Health Organization guidelines. We assessed cardiorespiratory fitness using a graded exercise test (VO2 max) and hippocampal structure via manual tracing of T1-weighted magnetic resonance images. We also assessed hippocampal function using magnetic resonance spectroscopy to derive estimates of N-acetyl-aspartate concentration and hippocampal-dependent associative memory and pattern separation tasks. We observed evidence of increased N-acetyl-aspartate concentration and associative memory performance in individuals engaging in high levels of exercise. However, no differences in hippocampal volume or pattern separation capacity were observed between groups. Cardiorespiratory fitness was positively associated with left and right hippocampal volume and N-acetyl-aspartate concentration. However, no associations were observed between cardiorespiratory fitness and associative memory or pattern separation. Therefore, we provide evidence that higher levels of exercise and cardiorespiratory fitness are associated with improved hippocampal structure and function. Exercise may provide a low-risk, effective method of improving hippocampal integrity in an early-to-mid-life stage.
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Affiliation(s)
- Joshua Hendrikse
- Turner Institute for Brain and Mental Health and School of Psychological Sciences, Monash University, Melbourne, Victoria, Australia
| | - Yann Chye
- Turner Institute for Brain and Mental Health and School of Psychological Sciences, Monash University, Melbourne, Victoria, Australia
| | - Sarah Thompson
- Turner Institute for Brain and Mental Health and School of Psychological Sciences, Monash University, Melbourne, Victoria, Australia
| | - Nigel C Rogasch
- Turner Institute for Brain and Mental Health and School of Psychological Sciences, Monash University, Melbourne, Victoria, Australia.,Hopwood Centre for Neurobiology, Lifelong Health Theme, South Australian Health and Medical Research Institute (SAHMRI), Adelaide, South Australia, Australia.,Discipline of Psychiatry, Adelaide Medical School, University of Adelaide, Adelaide, South Australia, Australia
| | - Chao Suo
- Turner Institute for Brain and Mental Health and School of Psychological Sciences, Monash University, Melbourne, Victoria, Australia
| | - James P Coxon
- Turner Institute for Brain and Mental Health and School of Psychological Sciences, Monash University, Melbourne, Victoria, Australia
| | - Murat Yücel
- Turner Institute for Brain and Mental Health and School of Psychological Sciences, Monash University, Melbourne, Victoria, Australia
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Thompson S, Josey D, Fleming J. 137: Improving FEV1 in patients aged 6–12 years in a pediatric cystic fibrosis clinic. J Cyst Fibros 2021. [DOI: 10.1016/s1569-1993(21)01562-9] [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: 11/16/2022]
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Abbas MN, Bright T, Price T, Karapetis C, Thompson S, Connell C, Watson D, Barnes M, Bull J, Singhal N, Roy A. Patterns of care and outcomes for gastric and gastro-oesophageal junction cancer in an Australian population. ANZ J Surg 2021; 91:2675-2682. [PMID: 34617383 DOI: 10.1111/ans.17249] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 08/21/2021] [Accepted: 09/11/2021] [Indexed: 12/24/2022]
Abstract
BACKGROUND A single state-wide upper gastrointestinal (GI) cancer video-linked multidisciplinary team (MDT) meeting guides management and evidence-based care for all newly diagnosed upper GI cancer patients in South Australia. This study determined the patterns of care and outcomes for patients diagnosed with gastric and gastro-oesophageal junction (GOJ) cancers. METHODS Patients diagnosed with gastric cancer and GOJ (Siewert III) cancer between June 2012 and June 2016 were included. Patient demographics, cancer stage, histology, diagnostic modalities and treatment data was analysed from a prospective database. Stage-specific survival outcomes were determined and analysed for each treatment modality. RESULTS The study included 218 patients and at diagnosis 132 (61%) patients had stage I-III and 86 (39%) patients had stage IV disease. One hundred and ninety-five (89%) patients had gastric cancer and 23 (11%) had GOJ cancer (Siewert III). One hundred and nine (50%) patients underwent surgery, with 92% R0 resection rate. Forty-six patients received perioperative chemotherapy and 111 (51%) patients received palliative intent treatment. Median overall survival for stage II, III and IV cancers was 57.6 (95% CI 57.6-NR), 22.8 (95% CI 20.4-43.2), and 6.0 months (95% CI 4.8-8.4) respectively (p < 0.001). Median overall survival for patients who underwent perioperative chemotherapy and surgery was not reached as compared to 44.4 months (95% CI 28.8-NR) for patients who underwent surgery alone. CONCLUSION Treatment outcomes for patients with gastric and GOJ cancer managed across South Australia met contemporary evidence-based practice. However, as most patients continue to present with late-stage disease, longer-term survival remains poor.
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Affiliation(s)
- M Nazim Abbas
- Flinders Centre for Innovation in Cancer, Flinders Medical Centre, Bedford Park, South Australia, Australia.,College of Medicine and Public Health, Flinders University, Bedford Park, South Australia, Australia
| | - Tim Bright
- College of Medicine and Public Health, Flinders University, Bedford Park, South Australia, Australia.,Department of Surgery, Flinders Medical Centre, Bedford Park, South Australia, Australia
| | - Timothy Price
- Department of Medical Oncology, The Queen Elizabeth Hospital, Woodville, South Australia, Australia.,Adelaide Medical School, University of Adelaide, Adelaide, South Australia, Australia
| | - Christos Karapetis
- Flinders Centre for Innovation in Cancer, Flinders Medical Centre, Bedford Park, South Australia, Australia.,College of Medicine and Public Health, Flinders University, Bedford Park, South Australia, Australia
| | - Sarah Thompson
- College of Medicine and Public Health, Flinders University, Bedford Park, South Australia, Australia.,Department of Surgery, Flinders Medical Centre, Bedford Park, South Australia, Australia
| | - Caroline Connell
- Genesiscare, Flinders Private Hospital, Bedford Park, South Australia, Australia
| | - David Watson
- College of Medicine and Public Health, Flinders University, Bedford Park, South Australia, Australia.,Department of Surgery, Flinders Medical Centre, Bedford Park, South Australia, Australia
| | - Mary Barnes
- College of Medicine and Public Health, Flinders University, Bedford Park, South Australia, Australia.,Flinders Centre for Epidemiology and Biostatistics, Flinders University, Bedford Park, South Australia, Australia
| | - Jeff Bull
- College of Medicine and Public Health, Flinders University, Bedford Park, South Australia, Australia.,Department of Surgery, Flinders Medical Centre, Bedford Park, South Australia, Australia
| | - Nimit Singhal
- Department of Medical Oncology, Royal Adelaide Hospital, Adelaide, South Australia, Australia
| | - Amitesh Roy
- Flinders Centre for Innovation in Cancer, Flinders Medical Centre, Bedford Park, South Australia, Australia.,College of Medicine and Public Health, Flinders University, Bedford Park, South Australia, Australia
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Buard I, Lattanzio L, Stewart R, Thompson S, Sjoberg K, Hookstadt K, Morrow M, Holden SK, Sillau S, Thaut M, Kluger B. Randomized controlled trial of neurologic music therapy in Parkinson's disease: research rehabilitation protocols for mechanistic and clinical investigations. Trials 2021; 22:577. [PMID: 34454592 PMCID: PMC8403394 DOI: 10.1186/s13063-021-05560-7] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2021] [Accepted: 08/20/2021] [Indexed: 11/12/2022] Open
Abstract
Background Presently available medications and surgical treatments for Parkinson’s disease have limited effects on fine motor problems and often leave patients with significant fine motor disability. Standard of care occupational therapy (OT) yields low efficacy, potentially due to a lack of standard protocols. Neurologic music therapy (NMT) techniques, especially rhythmic auditory stimulation which relies on interaction between rhythm and movement, have shown to be effective in PD gait rehabilitation possibly through their reliance on neural pathways that are not affected by PD. Therapeutic instrumental music performance (TIMP) is one other NMT technique that holds promise but which mode of action and efficacy has not been investigated in PD yet. Methods One hundred PD participants will be randomly assigned to receive 15 sessions of either TIMP with rhythm or TIMP without rhythm, standard of care OT, or to be waitlisted (control) over 5 consecutive weeks. Brain oscillatory responses will be collected using magnetoencephalography during an auditory-motor task to understand the underlying mechanisms. The Grooved Pegboard, the UPDRS III finger tap, and the finger-thumb opposition will be assessed to investigate clinical changes related to fine motor function. This project will also serve to confirm or refute our pilot data findings suggesting NMT relies on compensatory brain networks utilized by the PD brain to bypass the dysfunctional basal ganglia. Discussion This study aims to use standardized TIMP and OT research protocols for investigating the neuronal pathways utilized by each intervention and possibly study their efficacy with respect to fine motor rehabilitation via a randomized control trial in the PD population. Trial registration ClinicalTrials.gov NCT03049033. Registered on September 29, 2020 Supplementary Information The online version contains supplementary material available at 10.1186/s13063-021-05560-7.
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Affiliation(s)
- Isabelle Buard
- Department of Neurology, University of Colorado Denver, Fitzsimons Building, Mailstop F548, 13001 E. 17th Place, R24-002, Aurora, CO, 80045, USA.
| | - Lucas Lattanzio
- Department of Neurology, University of Colorado Denver, Fitzsimons Building, Mailstop F548, 13001 E. 17th Place, R24-002, Aurora, CO, 80045, USA
| | | | | | | | | | | | - Samantha K Holden
- Department of Neurology, University of Colorado Denver, Fitzsimons Building, Mailstop F548, 13001 E. 17th Place, R24-002, Aurora, CO, 80045, USA
| | - Stefan Sillau
- Department of Neurology, University of Colorado Denver, Fitzsimons Building, Mailstop F548, 13001 E. 17th Place, R24-002, Aurora, CO, 80045, USA
| | - Michael Thaut
- Faculty of Music, University of Toronto, Toronto, Canada
| | - Benzi Kluger
- Department of Neurology, University of Rochester Medical Center, Rochester, NY, USA
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Choi WK, D'Sa A, Holman JN, Javed S, Thompson S, Nadgir RN. Chest CT Has Higher Yield for Infection than CT Sinus in Febrile Neutropenic Patients. Curr Probl Diagn Radiol 2021; 51:340-343. [PMID: 34334225 DOI: 10.1067/j.cpradiol.2021.06.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2021] [Revised: 05/29/2021] [Accepted: 06/16/2021] [Indexed: 02/03/2023]
Abstract
OBJECTIVE Chest and sinus CT imaging among cancer patients undergoing chemotherapy and bone marrow transplant in the setting of neutropenic fever is not uncommon, yet the utility of routine imaging surveillance remains unclear. We aim to compare the rates of acute infection detected on CT chest and CT sinus exams performed in this clinical setting. METHODS Reports of 1059 consecutive CT chest and sinus examinations for the clinical indication of neutropenic fever on 262 patients performed between January through June 2017 were retrospectively reviewed. Infection as reported was characterized as acute or worsening, improving, stable, indeterminate or negative. Results were tabulated and Pearson's chi-square test was used for comparison analysis. RESULTS Absence of infection on CT sinus was significantly higher than CT chest (86.1% vs. 58.5%; P<0.001). Conversely, CT chest had significantly higher incidence of acute or worsening infection than CT sinus (28.7% vs. 11.6%; P<0.001). CT chest also showed significantly higher incidence of improving infection compared to CT sinus (6.2% vs. 1.1%; P<0.001). There was no significant difference between incidence of stable infection on CT chest and CT sinus (1.1% vs. 0.2%; P=0.059). Infection was indeterminate in 5.5% of CT chest vs. 1% on CT sinus (P<0.001). CONCLUSIONS CT chest showed significantly higher diagnostic yield for acute infection than CT sinus, suggesting that sinusitis is less likely to be the source of fever than chest infections in febrile neutropenic patients. The majority of CT studies showed absence of infection, raising the question of the overall utility of routine surveillance CT imaging among this subset of patients.
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Affiliation(s)
- Won Kyu Choi
- Johns Hopkins Hospital: Johns Hopkins Medicine, 600 N. Wolfe Street, Phipps B-100, Baltimore, MD
| | - Adam D'Sa
- Johns Hopkins Hospital: Johns Hopkins Medicine, 600 N. Wolfe Street, Phipps B-100, Baltimore, MD
| | - Joseph N Holman
- Johns Hopkins Hospital: Johns Hopkins Medicine, 600 N. Wolfe Street, Phipps B-100, Baltimore, MD
| | - Samrah Javed
- Johns Hopkins Hospital: Johns Hopkins Medicine, 600 N. Wolfe Street, Phipps B-100, Baltimore, MD
| | - Sarah Thompson
- Johns Hopkins Hospital: Johns Hopkins Medicine, 600 N. Wolfe Street, Phipps B-100, Baltimore, MD
| | - Rohini N Nadgir
- Johns Hopkins Hospital: Johns Hopkins Medicine, 600 N. Wolfe Street, Phipps B-100, Baltimore, MD..
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Cosman G, Dickson S, Chin V, Thompson S, Gupta S, Chin Y. EFFICACY OF SALVAGE RADIOTHERAPY IN PATIENTS WITH RESIDUAL OR RECURRENT DIFFUSE LARGE B‐CELL LYMPHOMA. Hematol Oncol 2021. [DOI: 10.1002/hon.40_2881] [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: 11/08/2022]
Affiliation(s)
- G Cosman
- St George Hospital, Radiation Oncology Sydney Australia
| | - S Dickson
- Calvary Mater Hospital, Radiation Oncology Newcastle Australia
| | - V Chin
- Prince of Wales Hospital, Radiation Oncology Sydney Australia
| | - S Thompson
- Prince of Wales Hospital, Radiation Oncology Sydney Australia
| | - S Gupta
- Calvary Mater Hospital, Radiation Oncology Newcastle Australia
| | - Y Chin
- St George Hospital, Radiation Oncology Sydney Australia
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Johnson P, Thompson S, Adamo D, Fleming C, Bancos I, McKenzie T, Cheville J, Young W, Andrews J. Abstract No. 191 Adrenal venous sampling for lateralization of cortisol hypersecretion in patients with adrenocorticotropic hormone–independent Cushing syndrome and bilateral adrenal masses. J Vasc Interv Radiol 2021. [DOI: 10.1016/j.jvir.2021.03.197] [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] Open
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Linch F, Thompson S, Jin M, Frimpong R, Reisenauer C, Takahashi E. Abstract No. 185 Impact of anticoagulation and antiplatelet therapy on dialysis catheter fibrin sheath formation. J Vasc Interv Radiol 2021. [DOI: 10.1016/j.jvir.2021.03.191] [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] Open
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Thompson S, Pappas D. Protein-, polymer-, and silica-based luminescent nanomaterial probes for super resolution microscopy: a review. Nanoscale Adv 2021; 3:1853-1864. [PMID: 34381961 PMCID: PMC8323812 DOI: 10.1039/d0na00971g] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Accepted: 02/15/2021] [Indexed: 06/13/2023]
Abstract
Super resolution microscopy was developed to overcome the Abbe diffraction limit, which effects conventional optical microscopy, in order to study the smaller components of biological systems. In recent years nanomaterials have been explored as luminescent probes for super resolution microscopy, as many have advantages over traditional fluorescent dye molecules. This review will summarize several different types of nanomaterial probes, covering quantum dots, carbon dots, and dye doped nanoparticles. For the purposes of this review the term "nanoparticle" will be limited to polymer-based, protein-based, and silica-based nanoparticles, including core-shell structured nanoparticles. Luminescent nanomaterials have shown promise as super-resolution probes, and continued research in this area will yield new advances in both materials science and biochemical microscopy at the nanometer scale.
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Affiliation(s)
- S Thompson
- Department of Chemistry and Biochemistry, Texas Tech University USA
| | - Dimitri Pappas
- Department of Chemistry and Biochemistry, Texas Tech University USA
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Grahame V, Dixon L, Fletcher-Watson S, Garland D, Glod M, Goodwin J, Grayson Z, Heron S, Honey E, Iversen R, Kasim AS, Kernohan A, Kharatikoopaei E, Le Couteur A, Mackie L, Mathias A, Probert H, Riby D, Rob P, Rogan L, Thompson S, Vale L, Walls E, Webb EI, Weetman C, Wolstenhulme F, Wood R, Rodgers J. A clinical and cost-effectiveness trial of a parent group intervention to manage challenging restricted and repetitive behaviours in young children with autism spectrum disorder: study protocol for a randomised controlled trial. Trials 2021; 22:240. [PMID: 33794962 PMCID: PMC8012746 DOI: 10.1186/s13063-021-05175-y] [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] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Accepted: 03/08/2021] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Restricted and repetitive behaviours vary greatly across the autism spectrum, and although not all are problematic some can cause distress and interfere with learning and social opportunities. We have, alongside parents, developed a parent group based intervention for families of young children with autism, which aims to offer support to parents and carers; helping them to recognise, understand and learn how to respond to their child's challenging restricted repetitive behaviours. METHODS The study is a clinical and cost-effectiveness, multi-site randomised controlled trial of the Managing Repetitive Behaviours (MRB) parent group intervention versus a psychoeducation parent group Learning About Autism (LAA) (n = 250; 125 intervention/125 psychoeducation; ~ 83/site) for parents of young children aged 3-9 years 11 months with a diagnosis of autism. All analyses will be done under intention-to-treat principle. The primary outcome at 24 weeks will use generalised estimating equation (GEE) to compare proportion of children with improved RRB between the MRB group and the LAA group. The GEE model will account for the clustering of children by parent groups using exchangeable working correlation. All secondary outcomes will be analysed in a similar way using appropriate distribution and link function. The economic evaluation will be conducted from the perspective of both NHS costs and family access to local community services. A 'within trial' cost-effectiveness analysis with results reported as the incremental cost per additional child achieving at least the target improvement in CGI-I scale at 24 weeks. DISCUSSION This is an efficacy trial to investigate the clinical and cost-effectiveness of a parent group based intervention designed to help parents understand and manage their child's challenging RRB. If found to be effective, this intervention has the potential to improve the well-being of children and their families, reduce parental stress, greatly enhance community participation and potential for learning, and improve longer-term outcomes. TRIAL REGISTRATION Trial ID: ISRCTN15550611 Date registered: 07/08/2018. Sponsor and Monitor: Cumbria, Northumberland, Tyne and Wear NHS Foundation Trust R&D Manager Lyndsey Dixon, Address: St Nicholas Hospital, Jubliee Road, Gosforth, Newcastle upon Tyne NE3 3XT, lyndsey.dixon@cntw.nhs.uk , Tel: 0191 246 7222.
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Affiliation(s)
- Victoria Grahame
- Cumbria, Northumberland, Tyne and Wear NHS Foundation Trust, Complex Neurodevelopmental Disorder Service (CNDS), Walkergate Park, Benfield Road, Newcastle upon Tyne, NE6 4QD UK
| | - Linda Dixon
- Cumbria, Northumberland, Tyne and Wear NHS Foundation Trust, Complex Neurodevelopmental Disorder Service (CNDS), Walkergate Park, Benfield Road, Newcastle upon Tyne, NE6 4QD UK
| | - Sue Fletcher-Watson
- Salvesen Mindroom Research Centre, The University of Edinburgh, Kennedy Tower, Morningside Terrace, Edinburgh, EH10 5HF UK
| | - Deborah Garland
- National Autistic Society, North East Resource Centre, Newcastle upon Tyne, NE5 2LW UK
| | - Magdalena Glod
- Population Health Sciences Institute, Newcastle University, Level 3, Sir James Spence Institute, Royal Victoria Infirmary, Queen Victoria Road, Newcastle upon Tyne, NE1 4LP UK
| | - Jane Goodwin
- Population Health Sciences Institute, Newcastle University, Level 3, Sir James Spence Institute, Royal Victoria Infirmary, Queen Victoria Road, Newcastle upon Tyne, NE1 4LP UK
| | - Zoe Grayson
- Salvesen Mindroom Research Centre, Child Life and Health, Royal Hospital for Sick Children, Edinburgh, EH9 1LF UK
| | - Saoirse Heron
- Royal Edinburgh Hospital, Kennedy Tower, Morningside Terrace, Edinburgh, EH10 5HF UK
| | - Emma Honey
- Cumbria, Northumberland, Tyne and Wear NHS Foundation Trust, Complex Neurodevelopmental Disorder Service (CNDS), Walkergate Park, Benfield Road, Newcastle upon Tyne, NE6 4QD UK
| | - Rebecca Iversen
- Royal Edinburgh Hospital, Kennedy Tower, Morningside Terrace, Edinburgh, EH10 5HF UK
| | - Adetayo S. Kasim
- Durham Research Methods Centre, Durham University, South Road, Durham, DH1 3LE UK
| | - Ashleigh Kernohan
- Population Health Sciences Institute, Newcastle University, Baddiley-Clark Building, Richardson Road, Newcastle upon Tyne, NE2 4AA UK
| | | | - Ann Le Couteur
- Population Health Sciences Institute, Newcastle University, Level 3, Sir James Spence Institute, Royal Victoria Infirmary, Queen Victoria Road, Newcastle upon Tyne, NE1 4LP UK
| | - Leila Mackie
- Salvesen Mindroom Research Centre, Child Life and Health, Royal Hospital for Sick Children, Edinburgh, EH9 1LF UK
| | - Ayesha Mathias
- Newcastle Clinical Trials Unit, Newcastle University 1-4 Claremont Terrace, Newcastle upon Tyne, NE2 4AE UK
| | - Helen Probert
- Psychology Department, Durham University, Science Laboratories, South Road, Durham, DH1 3LE UK
| | - Deborah Riby
- Psychology Department, Durham University, Science Laboratories, South Road, Durham, DH1 3LE UK
| | - Priyanka Rob
- Population Health Sciences Institute, Newcastle University, Level 3, Sir James Spence Institute, Royal Victoria Infirmary, Queen Victoria Road, Newcastle upon Tyne, NE1 4LP UK
| | - Leanne Rogan
- Cumbria, Northumberland, Tyne and Wear NHS Foundation Trust, Complex Neurodevelopmental Disorder Service (CNDS), Walkergate Park, Benfield Road, Newcastle upon Tyne, NE6 4QD UK
| | - Sarah Thompson
- Psychology Department, Durham University, Science Laboratories, South Road, Durham, DH1 3LE UK
| | - Luke Vale
- Population Health Sciences Institute, Newcastle University, Baddiley-Clark Building, Richardson Road, Newcastle upon Tyne, NE2 4AA UK
| | - Eamonn Walls
- Royal Edinburgh Hospital, Kennedy Tower, Morningside Terrace, Edinburgh, EH10 5HF UK
| | | | - Christopher Weetman
- Newcastle Clinical Trials Unit, Newcastle University 1-4 Claremont Terrace, Newcastle upon Tyne, NE2 4AE UK
| | - Faye Wolstenhulme
- Newcastle Clinical Trials Unit, Newcastle University 1-4 Claremont Terrace, Newcastle upon Tyne, NE2 4AE UK
| | - Ruth Wood
- Newcastle Clinical Trials Unit, Newcastle University 1-4 Claremont Terrace, Newcastle upon Tyne, NE2 4AE UK
| | - Jacqui Rodgers
- Population Health Sciences Institute, Newcastle University, Level 3, Sir James Spence Institute, Royal Victoria Infirmary, Queen Victoria Road, Newcastle upon Tyne, NE1 4LP UK
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Abstract
Momentum is building in the transition to open access for monographs, with a number of funders developing policies and mandates in recent years. The article argues that while libraries play an instrumental role in driving a transition to open science within their institutions this is not reflected in libraries’ approaches to collection development, which are still predicated on purchased content. Libraries are keen to demonstrate that their purchased content is relevant to users, often promoting ‘expensive’ purchased collections over open content. Rather than relegating open to a less-visible second place, the article calls for libraries to acquire and promote open content alongside, and where appropriate with higher priority, than paid-for content. In order to facilitate a transition to open access for monographs, cultural change and leadership is required within libraries to reimagine themselves around open content as the norm, with policies, practices and structures that communicate, enable and promote this shift. The article calls for a collaborative international approach.
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Haase S, Nuñez FM, Gauss JC, Thompson S, Brumley E, Lowenstein P, Castro MG. Hemispherical Pediatric High-Grade Glioma: Molecular Basis and Therapeutic Opportunities. Int J Mol Sci 2020; 21:ijms21249654. [PMID: 33348922 PMCID: PMC7766684 DOI: 10.3390/ijms21249654] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2020] [Revised: 12/14/2020] [Accepted: 12/15/2020] [Indexed: 12/11/2022] Open
Abstract
In this review, we discuss the molecular characteristics, development, evolution, and therapeutic perspectives for pediatric high-grade glioma (pHGG) arising in cerebral hemispheres. Recently, the understanding of biology of pHGG experienced a revolution with discoveries arising from genomic and epigenomic high-throughput profiling techniques. These findings led to identification of prevalent molecular alterations in pHGG and revealed a strong connection between epigenetic dysregulation and pHGG development. Although we are only beginning to unravel the molecular biology underlying pHGG, there is a desperate need to develop therapies that would improve the outcome of pHGG patients, as current therapies do not elicit significant improvement in median survival for this patient population. We explore the molecular and cell biology and clinical state-of-the-art of pediatric high-grade gliomas (pHGGs) arising in cerebral hemispheres. We discuss the role of driving mutations, with a special consideration of the role of epigenetic-disrupting mutations. We will also discuss the possibilities of targeting unique molecular vulnerabilities of hemispherical pHGG to design innovative tailored therapies.
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Affiliation(s)
- Santiago Haase
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI 48109, USA; (S.H.); (F.M.N.); (J.C.G.); (S.T.); (E.B.); (P.L.)
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Fernando M. Nuñez
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI 48109, USA; (S.H.); (F.M.N.); (J.C.G.); (S.T.); (E.B.); (P.L.)
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Jessica C. Gauss
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI 48109, USA; (S.H.); (F.M.N.); (J.C.G.); (S.T.); (E.B.); (P.L.)
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Sarah Thompson
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI 48109, USA; (S.H.); (F.M.N.); (J.C.G.); (S.T.); (E.B.); (P.L.)
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Emily Brumley
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI 48109, USA; (S.H.); (F.M.N.); (J.C.G.); (S.T.); (E.B.); (P.L.)
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Pedro Lowenstein
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI 48109, USA; (S.H.); (F.M.N.); (J.C.G.); (S.T.); (E.B.); (P.L.)
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
| | - Maria G. Castro
- Department of Neurosurgery, University of Michigan Medical School, Ann Arbor, MI 48109, USA; (S.H.); (F.M.N.); (J.C.G.); (S.T.); (E.B.); (P.L.)
- Department of Cell and Developmental Biology, University of Michigan Medical School, Ann Arbor, MI 48109, USA
- Correspondence:
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Yang A, Courie H, Peterson V, Thompson S, Hafycz J, Jeanmonod R, Rammohan G, Stankewicz H, Hackett D, Jeanmonod D. 29 Bedside Point-of-Care Measurement of a Novel Biomarker SPLA2-IIA for Prediction of Sepsis: Midpoint Analysis. Ann Emerg Med 2020. [DOI: 10.1016/j.annemergmed.2020.09.039] [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: 10/23/2022]
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Rafie A, Jolly K, Darr A, Thompson S. Adult cavernous haemangioma of the vocal cords with a unique presentation of acute respiratory distress: a case report. Ann R Coll Surg Engl 2020; 102:e152-e154. [PMID: 32306741 PMCID: PMC7450425 DOI: 10.1308/rcsann.2020.0066] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [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: 02/21/2020] [Indexed: 11/22/2022] Open
Abstract
Laryngeal haemangiomas can commonly be seen in children, and first-line treatment is usually propranolol. However, in adults, cavernous haemangioma of the vocal cord(s) is an extremely rare condition - with this being the only published adult case presenting with acute respiratory distress - the mainstay of treatment is surgical excision under microlaryngoscopy. Presentation in adults can be unpredictable, but primarily consists of hoarseness which can be associated with, dyspnoea, dysphagia, and haemoptysis - and in one documented case stenosis of the aero-digestive tract led to death. Due to these airway difficulties, surgery can often prove challenging. In this study, we explore the unusual case of a previously well 71-year-old gentleman presenting to the Emergency Department, with worsening shortness of breath as his primary complaint. Uniquely, in this case, an awake fibre-optic intubation was undertaken to manage the difficult airway and a microlaryngoscopy was performed. A 20x10x15mm lesion was excised, which had characteristics in keeping with a cavernous haemangioma on microscopic examination.
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Affiliation(s)
- A Rafie
- Shrewsbury and Telford Hospital NHS Trust, Shrewsbury, UK
| | - K Jolly
- Birmingham Children’s Hospital NHS Foundation Trust, Birmingham, UK
| | - A Darr
- New Cross Hospital, Wolverhampton, UK
| | - S Thompson
- Shrewsbury and Telford Hospital NHS Trust, Shrewsbury, UK
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PB S, Meichner K, Thompson S, JM W. Eosinophilic Synovitis in a Horse following Methylprednisolone Acetate Injection in the Distal Tarsal Joints. Vet Comp Orthop Traumatol 2020. [DOI: 10.1055/s-0040-1714965] [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: 10/20/2022]
Affiliation(s)
- Sloan PB
- Clinical Sciences, Kansas State University, Manhattan, Kansas, United States
| | - K Meichner
- Department of Pathology, University of Georgia, Athens, Georgia, United States
| | - S Thompson
- Estrella Equine, Aiken, South Carolina, United States
| | - Williams JM
- College of Veterinary Medicine, University of Georgia, Athens, Georgia, United States
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Johnson RD, Ford DV, Broadhurst K, Cusworth L, Jones KH, Akbari A, Bedston S, Alrouh B, Doebler S, Lee A, Smart J, Thompson S, Trinder L, Griffiths LJ. Data Resource: population level family justice administrative data with opportunities for data linkage. Int J Popul Data Sci 2020; 5:1339. [PMID: 34233348 PMCID: PMC7473282 DOI: 10.23889/ijpds.v5i1.1339] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
INTRODUCTION Although there has been considerable progress in the use of administrative data for applied health research, the family justice field lags behind. Better use of administrative data are essential to enhance understanding of how the family justice system is working, as well as the characteristics of, and outcomes for, children and families. The Family Justice Data Partnership (FJDP) supports this aim through analyses of core family justice and linked datasets in the SAIL Databank (Secure Anonymised Information Linkage). Cafcass Cymru provide expert advice for children involved in family court proceedings in Wales, ensuring decisions are made in the best interests of the child. We provide an overview of Cafcass Cymru data. We also describe and illustrate linkage to administrative datasets within SAIL. METHODS Cafcass Cymru data was transferred to SAIL using a standardised approach to provide de-identified data with Anonymised Linking Fields (ALF) for successfully matched records. Three cohorts were created: all individuals involved in family court applications; all individuals with an ALF allowing subsequent health data linkage; and all individuals with a Residential Anonymised Linking Field (RALF) enabling area-level deprivation analysis. RESULTS Cafcass Cymru application data are available for child protection matters (public law, range 2011-2019, n=12,745), and child arrangement disputes (private law, range 2005-2019, n=52,023). An 80% data linkage match rate was achieved. 40% had hospital admissions within two years pre or post application; 54% had emergency department attendances and 61% had outpatient appointments. Individuals were more likely to reside in deprived areas regardless of law type. CONCLUSION Cafcass Cymru data can be accessed through the SAIL Databank. The FJDP will continue to enhance research opportunities for all to better understand the family justice system, and outcomes for those involved, such as health and wellbeing for children and family members.
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Affiliation(s)
- RD Johnson
- Population Data Science, Swansea University Medical School, Swansea, SA2 8PP, UK
| | - DV Ford
- Population Data Science, Swansea University Medical School, Swansea, SA2 8PP, UK
| | - K Broadhurst
- Centre for Child & Family Justice Research, Lancaster University, Lancaster, LA1 4YW, UK
| | - L Cusworth
- Centre for Child & Family Justice Research, Lancaster University, Lancaster, LA1 4YW, UK
| | - KH Jones
- Population Data Science, Swansea University Medical School, Swansea, SA2 8PP, UK
| | - A Akbari
- Population Data Science, Swansea University Medical School, Swansea, SA2 8PP, UK
| | - S Bedston
- Centre for Child & Family Justice Research, Lancaster University, Lancaster, LA1 4YW, UK
| | - B Alrouh
- Centre for Child & Family Justice Research, Lancaster University, Lancaster, LA1 4YW, UK
| | - S Doebler
- Centre for Child & Family Justice Research, Lancaster University, Lancaster, LA1 4YW, UK
| | - A Lee
- Population Data Science, Swansea University Medical School, Swansea, SA2 8PP, UK
| | - J Smart
- Population Data Science, Swansea University Medical School, Swansea, SA2 8PP, UK
| | - S Thompson
- Population Data Science, Swansea University Medical School, Swansea, SA2 8PP, UK
| | - L Trinder
- Law School, University of Exeter, Exeter, EX4 4RJ, UK
| | - LJ Griffiths
- Population Data Science, Swansea University Medical School, Swansea, SA2 8PP, UK
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Lemay F, Cooper J, Thompson S, Scott J. Combination of transnasal humidified rapid-insufflation ventilatory exchange with high frequency jet ventilation for shared airway surgery. Can J Anaesth 2020; 67:1264-1265. [PMID: 32207089 DOI: 10.1007/s12630-020-01635-2] [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] [Received: 01/30/2020] [Revised: 03/13/2020] [Accepted: 03/14/2020] [Indexed: 10/24/2022] Open
Affiliation(s)
- Francois Lemay
- Département d'anesthésiologie et de soins intensifs, Université Laval, Quebec, Canada. .,Department of Anaesthesiology, University of Auckland, Auckland, New Zealand.
| | - Jeremy Cooper
- Green Lane Department of Cardiothoracic and ORL Anaesthesia, Auckland City Hospital, Auckland, New Zealand
| | - Sarah Thompson
- Department of Anaesthesia, Auckland City Hospital, Auckland, New Zealand
| | - Jeanette Scott
- Department of Anaesthesia, Auckland City Hospital, Auckland, New Zealand
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Mir F, Wilding C, Mcaddy N, Butterfield N, Sena L, Thompson S, Mitra I, Mohammed K, Vroobel K, Attygalle A, Chau I, Cunningham D, Dearden C, El-Sharkawi D, Fotiadis N, Wotherspoon A, Sharma B, Iyengar S. Focal splenic lesions in indolent B-NHL: association with high grade transformation and safe percutaneous biopsy. Br J Haematol 2020; 189:e157-e160. [PMID: 32196643 DOI: 10.1111/bjh.16580] [Citation(s) in RCA: 2] [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] [Received: 01/17/2020] [Revised: 02/23/2020] [Accepted: 02/24/2020] [Indexed: 12/20/2022]
Affiliation(s)
- Farheen Mir
- The Royal Marsden Hospital, Sutton, Surrey, UK
| | | | | | | | | | | | - Indu Mitra
- The Royal Marsden Hospital, Sutton, Surrey, UK
| | | | | | | | - Ian Chau
- The Royal Marsden Hospital, Sutton, Surrey, UK
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Courcier EA, Pascual-Linaza AV, Arnold ME, McCormick CM, Corbett DM, O'Hagan MJH, Collins SF, Trimble NA, McGeown CF, McHugh GE, McBride KR, McNair J, Thompson S, Patterson IAP, Menzies FD. Evaluating the application of the dual path platform VetTB test for badgers (Meles meles) in the test and vaccinate or remove (TVR) wildlife research intervention project in Northern Ireland. Res Vet Sci 2020; 130:170-178. [PMID: 32197169 DOI: 10.1016/j.rvsc.2020.03.007] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2019] [Revised: 02/28/2020] [Accepted: 03/02/2020] [Indexed: 11/15/2022]
Abstract
European badgers (Meles meles) are accepted as a wildlife reservoir host for Mycobacterium bovis, which causes bovine tuberculosis (bTB) in the British Isles. The objective of this study was to evaluate the use of Dual Path Platform (DPP) VetTB test (Chembio Diagnostic Systems Inc., Medford, NY, USA) within a Test and Vaccinate or Remove (TVR) wildlife research intervention project. Blood samples were collected from 456 individual badgers, trapped in 2015 and 2016, and tested in the field with DPP VetTB test using whole blood. Additionally, whole blood and serum samples were taken to the laboratory for further DPP VetTB testing and for gamma interferon (IFN-γ) testing. Swabs were taken from the oropharynx and trachea and submitted for bacteriological culture as were swabs from wounds, if present. Field DPP VetTB test positive badgers were euthanised and underwent post-mortem examination and bTB confirmatory testing. The results demonstrated that the test performed as well in the field using whole blood as DPP Vet TB tests in the laboratory using sera or whole blood, and as well as other established tests for M. bovis. Visual assessment of the DPP VetTB test using serum under laboratory conditions showed a high degree of consistency between raters. Using a relative gold standard (parallel interpretation of IFN-γ assay and oropharyngeal/tracheal sample/culture), sensitivity estimates for the DPP VetTB test using sera and whole blood were 0.5 (95%CI 0.34-0.66) and 0.42 (95%CI 0.24-0.66), respectively. Specificity estimates were 0.95 (95%CI 0.93-0.97) for sera and 0.89 (95%CI 0.86-0.92) for whole blood. Parallel interpretation of Band 1 (MPB83) and Band 2 (CFP-10/ESAT-6) of the DPP VetTB test was not superior to interpretation of Band 1 only. The results give confidence in the reliability and reproducibility of the DPP VetTB test for badgers under field conditions and therefore it is considered appropriate for use in a badger bTB control campaign.
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Affiliation(s)
- E A Courcier
- Veterinary Epidemiology Unit, Department of Agriculture, Environment and Rural Affairs, Belfast BT4 3SB, Northern Ireland, UK.
| | - A V Pascual-Linaza
- Veterinary Epidemiology Unit, Department of Agriculture, Environment and Rural Affairs, Belfast BT4 3SB, Northern Ireland, UK
| | - M E Arnold
- Animal and Plant Health Agency Sutton Bonington, Sutton Bonington, Loughborough LE12 5RB, England, UK
| | - C M McCormick
- Veterinary Epidemiology Unit, Department of Agriculture, Environment and Rural Affairs, Belfast BT4 3SB, Northern Ireland, UK; Veterinary Sciences Division, Agri-Food and Biosciences Institute, Stormont, Belfast BT4 3SD, Northern Ireland, UK
| | - D M Corbett
- Veterinary Sciences Division, Agri-Food and Biosciences Institute, Stormont, Belfast BT4 3SD, Northern Ireland, UK
| | - M J H O'Hagan
- Veterinary Epidemiology Unit, Department of Agriculture, Environment and Rural Affairs, Belfast BT4 3SB, Northern Ireland, UK
| | - S F Collins
- TVR Field Implementation Unit, Department of Agriculture, Environment and Rural Affairs, Glenree House, Springhill Road, Newry BT35 6EF, Northern Ireland, UK
| | - N A Trimble
- TVR Field Implementation Unit, Department of Agriculture, Environment and Rural Affairs, Glenree House, Springhill Road, Newry BT35 6EF, Northern Ireland, UK
| | - C F McGeown
- TVR Field Implementation Unit, Department of Agriculture, Environment and Rural Affairs, Glenree House, Springhill Road, Newry BT35 6EF, Northern Ireland, UK
| | - G E McHugh
- TVR Field Implementation Unit, Department of Agriculture, Environment and Rural Affairs, Glenree House, Springhill Road, Newry BT35 6EF, Northern Ireland, UK
| | - K R McBride
- Veterinary Epidemiology Unit, Department of Agriculture, Environment and Rural Affairs, Belfast BT4 3SB, Northern Ireland, UK
| | - J McNair
- Veterinary Sciences Division, Agri-Food and Biosciences Institute, Stormont, Belfast BT4 3SD, Northern Ireland, UK
| | - S Thompson
- Veterinary Sciences Division, Agri-Food and Biosciences Institute, Stormont, Belfast BT4 3SD, Northern Ireland, UK
| | - I A P Patterson
- Veterinary Sciences Division, Agri-Food and Biosciences Institute, Stormont, Belfast BT4 3SD, Northern Ireland, UK
| | - F D Menzies
- Veterinary Epidemiology Unit, Department of Agriculture, Environment and Rural Affairs, Belfast BT4 3SB, Northern Ireland, UK
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48
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Thompson S, Pappas D. Core Size does not Affect Blinking Behavior of Dye-Doped Ag@SiO 2 Core-Shell Nanoparticles for Super-Resolution Microscopy. RSC Adv 2020; 10:8735-8743. [PMID: 35356036 PMCID: PMC8963217 DOI: 10.1039/c9ra10421f] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Dye-doped nanoparticles have been investigated as bright, luminescent labels for super-resolution microscopy via localization methods. One key factor in super-resolution is the size of the luminescent label, which in some cases results in a frame shift between the label target and the label itself. Ag@SiO2 core–shell nanoparticles, doped with organic fluorophores, have shown promise as super-resolution labels. One key aspect of these nanoparticles is that they blink under certain conditions, allowing super-resolution localization with a single excitation source in aqueous solution. In this work, we investigated the effects of both the Ag core and the silica (SiO2) shell on the self-blinking properties of these nanoparticles. Both core size and shell thickness were manipulated by altering the reaction time to determine core and shell effects on photoblinking. Size and shell thickness were investigated individually under both dry and hydrated conditions and were then doped with a 1 mM solution of Rhodamine 110 for analysis. We observed that the cores themselves are weakly luminescent and are responsible for the blinking observed in the fully-synthesized metal-enhanced fluorescence nanoparticles. There was no statistically significant difference in photoblinking behavior—both intensity and duty cycle—with decreasing core size. This observation was used to synthesize smaller nanoparticles ranging from approximately 93 nm to 110 nm as measured using dynamic light scattering. The blinking particles were localized via super-resolution microscopy and show single particle self-blinking behavior. As the core size did not impact blinking performance or intensity, the nanoparticles can instead be tuned for optimal size without sacrificing luminescence properties. Dye-doped nanoparticles have been investigated as bright, luminescent labels for super-resolution microscopy via localization methods.![]()
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Affiliation(s)
- S Thompson
- Texas Tech University Department of Chemistry and Biochemistry, Lubbock, TX, USA
| | - Dimitri Pappas
- Texas Tech University Department of Chemistry and Biochemistry, Lubbock, TX, USA
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49
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Schneider C, Thompson S, Totz J, Song Y, Allam M, Sodergren MH, Desjardins AE, Barratt D, Ourselin S, Gurusamy K, Stoyanov D, Clarkson MJ, Hawkes DJ, Davidson BR. Comparison of manual and semi-automatic registration in augmented reality image-guided liver surgery: a clinical feasibility study. Surg Endosc 2020; 34:4702-4711. [PMID: 32780240 PMCID: PMC7524854 DOI: 10.1007/s00464-020-07807-x] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2020] [Accepted: 07/10/2020] [Indexed: 02/06/2023]
Abstract
BACKGROUND The laparoscopic approach to liver resection may reduce morbidity and hospital stay. However, uptake has been slow due to concerns about patient safety and oncological radicality. Image guidance systems may improve patient safety by enabling 3D visualisation of critical intra- and extrahepatic structures. Current systems suffer from non-intuitive visualisation and a complicated setup process. A novel image guidance system (SmartLiver), offering augmented reality visualisation and semi-automatic registration has been developed to address these issues. A clinical feasibility study evaluated the performance and usability of SmartLiver with either manual or semi-automatic registration. METHODS Intraoperative image guidance data were recorded and analysed in patients undergoing laparoscopic liver resection or cancer staging. Stereoscopic surface reconstruction and iterative closest point matching facilitated semi-automatic registration. The primary endpoint was defined as successful registration as determined by the operating surgeon. Secondary endpoints were system usability as assessed by a surgeon questionnaire and comparison of manual vs. semi-automatic registration accuracy. Since SmartLiver is still in development no attempt was made to evaluate its impact on perioperative outcomes. RESULTS The primary endpoint was achieved in 16 out of 18 patients. Initially semi-automatic registration failed because the IGS could not distinguish the liver surface from surrounding structures. Implementation of a deep learning algorithm enabled the IGS to overcome this issue and facilitate semi-automatic registration. Mean registration accuracy was 10.9 ± 4.2 mm (manual) vs. 13.9 ± 4.4 mm (semi-automatic) (Mean difference - 3 mm; p = 0.158). Surgeon feedback was positive about IGS handling and improved intraoperative orientation but also highlighted the need for a simpler setup process and better integration with laparoscopic ultrasound. CONCLUSION The technical feasibility of using SmartLiver intraoperatively has been demonstrated. With further improvements semi-automatic registration may enhance user friendliness and workflow of SmartLiver. Manual and semi-automatic registration accuracy were comparable but evaluation on a larger patient cohort is required to confirm these findings.
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Affiliation(s)
- C. Schneider
- Division of Surgery & Interventional Science, Royal Free Campus, University College London, Pond Street, London, NW3 2QG UK
| | - S. Thompson
- Wellcome / EPSRC Centre for Surgical and Interventional Sciences (WEISS), University College London, London, UK ,Centre for Medical Image Computing (CMIC), University College London, London, UK ,Department of Medical Physics and Bioengineering, University College London, London, UK
| | - J. Totz
- Wellcome / EPSRC Centre for Surgical and Interventional Sciences (WEISS), University College London, London, UK ,Centre for Medical Image Computing (CMIC), University College London, London, UK ,Department of Medical Physics and Bioengineering, University College London, London, UK
| | - Y. Song
- Wellcome / EPSRC Centre for Surgical and Interventional Sciences (WEISS), University College London, London, UK ,Centre for Medical Image Computing (CMIC), University College London, London, UK ,Department of Medical Physics and Bioengineering, University College London, London, UK
| | - M. Allam
- Division of Surgery & Interventional Science, Royal Free Campus, University College London, Pond Street, London, NW3 2QG UK
| | - M. H. Sodergren
- Centre for Medical Image Computing (CMIC), University College London, London, UK
| | - A. E. Desjardins
- Wellcome / EPSRC Centre for Surgical and Interventional Sciences (WEISS), University College London, London, UK ,Department of Medical Physics and Bioengineering, University College London, London, UK
| | - D. Barratt
- Wellcome / EPSRC Centre for Surgical and Interventional Sciences (WEISS), University College London, London, UK ,Centre for Medical Image Computing (CMIC), University College London, London, UK ,Department of Medical Physics and Bioengineering, University College London, London, UK
| | - S. Ourselin
- Wellcome / EPSRC Centre for Surgical and Interventional Sciences (WEISS), University College London, London, UK ,Centre for Medical Image Computing (CMIC), University College London, London, UK ,Department of Medical Physics and Bioengineering, University College London, London, UK
| | - K. Gurusamy
- Division of Surgery & Interventional Science, Royal Free Campus, University College London, Pond Street, London, NW3 2QG UK ,Wellcome / EPSRC Centre for Surgical and Interventional Sciences (WEISS), University College London, London, UK ,Department of Hepatopancreatobiliary and Liver Transplant Surgery, Royal Free Hospital, London, UK
| | - D. Stoyanov
- Wellcome / EPSRC Centre for Surgical and Interventional Sciences (WEISS), University College London, London, UK ,Centre for Medical Image Computing (CMIC), University College London, London, UK ,Department of Computer Science, University College London, London, UK
| | - M. J. Clarkson
- Wellcome / EPSRC Centre for Surgical and Interventional Sciences (WEISS), University College London, London, UK ,Centre for Medical Image Computing (CMIC), University College London, London, UK ,Department of Medical Physics and Bioengineering, University College London, London, UK
| | - D. J. Hawkes
- Wellcome / EPSRC Centre for Surgical and Interventional Sciences (WEISS), University College London, London, UK ,Centre for Medical Image Computing (CMIC), University College London, London, UK ,Department of Medical Physics and Bioengineering, University College London, London, UK
| | - B. R. Davidson
- Division of Surgery & Interventional Science, Royal Free Campus, University College London, Pond Street, London, NW3 2QG UK ,Wellcome / EPSRC Centre for Surgical and Interventional Sciences (WEISS), University College London, London, UK ,Department of Hepatopancreatobiliary and Liver Transplant Surgery, Royal Free Hospital, London, UK
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50
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Skuce R, Breadon E, Allen A, Milne G, McCormick C, Hughes C, Rutherford D, Smith G, Thompson S, Graham J, Harwood R, Byrne A. Longitudinal dynamics of herd-level Mycobacterium bovis MLVA type surveillance in cattle in Northern Ireland 2003-2016. Infect Genet Evol 2019; 79:104131. [PMID: 31786341 DOI: 10.1016/j.meegid.2019.104131] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2019] [Revised: 10/28/2019] [Accepted: 11/27/2019] [Indexed: 02/02/2023]
Abstract
Investigating genetically-structured diversity in pathogen populations over time is important to better understand disease maintenance and spread. Herd-level surveillance of Mycobacterium bovis genotypes (multi-locus VNTR analysis types, MLVA types) from all culture-confirmed bovine tuberculosis (TB) herd cases was undertaken in Northern Ireland (NI), generating an unparalleled, longitudinal, population-level 14-year survey for this pathogen. Across this population, 295 genetically-distinct M. bovis MLVA types were identified in the 19,717 M. bovis isolates surveyed. Of these, the most frequent was MLVA type 002 (23.0%); 151 MLVA types were represented more than once, in groups ranging from 2 to 4438 isolates. Only 23 MLVA types were isolated in all 14 years. Investigating inter-annual frequency of M. bovis MLVA types, examples of statistically-significant expansions (MLVA types 002, 004, 006, 009 and 027), contractions (MLVA types 001, 007 and 011) and maintenance (MLVA types 003 and 005) were disclosed, during a period of fluctuating bovine TB herd-level incidence at the NI scale. The fixed period frequency distribution of MLVA types remained highly right-skewed. Novel VNTR copy number variant MLVA types (N = 242; an average of 17 per annum) were identified throughout the survey. The MLVA type distribution in the landscape was not random; MLVA types showed statistically-significant geographical localization and strong spatial associations with Divisional Veterinary Office (DVO) regions. There was also evidence of differential risk of particular MLVA types across breeds (Holstein/Friesian vs. other), age-class, and sex and some evidence of an association between the number of animals testing positive for bovine TB during the disclosing test and particular MLVA types, although there was substantial variation.
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Affiliation(s)
- R Skuce
- Veterinary Sciences Division, Agri-food and Biosciences Institute (AFBI), Stoney Road, Stormont, Belfast BT4 3SD, UK; School of Biological Sciences, Queen's University Belfast, Belfast BT7 1NN, UK.
| | - E Breadon
- Veterinary Sciences Division, Agri-food and Biosciences Institute (AFBI), Stoney Road, Stormont, Belfast BT4 3SD, UK
| | - A Allen
- Veterinary Sciences Division, Agri-food and Biosciences Institute (AFBI), Stoney Road, Stormont, Belfast BT4 3SD, UK
| | - G Milne
- Veterinary Sciences Division, Agri-food and Biosciences Institute (AFBI), Stoney Road, Stormont, Belfast BT4 3SD, UK
| | - C McCormick
- Veterinary Sciences Division, Agri-food and Biosciences Institute (AFBI), Stoney Road, Stormont, Belfast BT4 3SD, UK; Veterinary Service and Animal Health Group, Department of Agriculture, Environment and Rural Affairs, Dundonald House, Stormont, Belfast BT4 3SB, UK
| | - C Hughes
- Veterinary Sciences Division, Agri-food and Biosciences Institute (AFBI), Stoney Road, Stormont, Belfast BT4 3SD, UK
| | - D Rutherford
- Veterinary Sciences Division, Agri-food and Biosciences Institute (AFBI), Stoney Road, Stormont, Belfast BT4 3SD, UK; Faculty of Electrical Engineering, Czech Technical University, Prague, Czech Republic (⁎)current address
| | - G Smith
- Veterinary Sciences Division, Agri-food and Biosciences Institute (AFBI), Stoney Road, Stormont, Belfast BT4 3SD, UK
| | - S Thompson
- Veterinary Sciences Division, Agri-food and Biosciences Institute (AFBI), Stoney Road, Stormont, Belfast BT4 3SD, UK
| | - J Graham
- Veterinary Sciences Division, Agri-food and Biosciences Institute (AFBI), Stoney Road, Stormont, Belfast BT4 3SD, UK
| | - R Harwood
- Veterinary Service and Animal Health Group, Department of Agriculture, Environment and Rural Affairs, Dundonald House, Stormont, Belfast BT4 3SB, UK
| | - A Byrne
- Veterinary Sciences Division, Agri-food and Biosciences Institute (AFBI), Stoney Road, Stormont, Belfast BT4 3SD, UK; School of Biological Sciences, Queen's University Belfast, Belfast BT7 1NN, UK; One-Health Unit, Surveillance, Animal By-Products and TSEs (SAT), Division Department of Agriculture, Food and Marine (DAFM), Agriculture House, Dublin 2, Ireland
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