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Marshall J, Huynh K, Lancaster G, Ng J, Collins J, Pernes G, Liang A, Featherby T, Mellet N, Drew B, Calkin A, King A, Meikle P, Febbraio M, Adlard P, Henstridge D. Behavioral, metabolic, and lipidomic characterization of the 5xFADxTg30 mouse model of Alzheimer's disease. iScience 2024; 27:108800. [PMID: 38292430 PMCID: PMC10826307 DOI: 10.1016/j.isci.2024.108800] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2023] [Revised: 10/23/2023] [Accepted: 01/02/2024] [Indexed: 02/01/2024] Open
Abstract
Alzheimer's disease (AD) is associated with both extracellular amyloid-β (Aβ) plaques and intracellular tau-containing neurofibrillary tangles (NFT). We characterized the behavioral, metabolic and lipidomic phenotype of the 5xFADxTg30 mouse model which contains overexpression of both Aβ and tau. Our results independently reproduce several phenotypic traits described previously for this model, while providing additional characterization. This model develops many aspects associated with AD including frailty, decreased survival, initiation of aspects of cognitive decline and alterations to specific lipid classes and molecular lipid species in the plasma and brain. Notably, some sex-specific differences exist in this model and motor impairment with aging in this model does compromise the utility of the model for some movement-based behavioral assessments of cognitive function. These findings provide a reference for individuals interested in using this model to understand the pathology associated with elevated Aβ and tau or for testing potential therapeutics for the treatment of AD.
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Affiliation(s)
- J.P.S. Marshall
- Baker Heart and Diabetes Institute, Melbourne, VIC, Australia
- School of Medicine, Dentistry and Health Sciences, The University of Melbourne, Parkville, VIC, Australia
- The Florey Institute of Neuroscience and Mental Health, Melbourne, VIC, Australia
| | - K. Huynh
- Baker Heart and Diabetes Institute, Melbourne, VIC, Australia
- Baker Department of Cardiometabolic Health, University of Melbourne, Parkville, VIC, Australia
- Baker Department of Cardiovascular Research Translation and Implementation, La Trobe University, Bundoora, VIC, Australia
| | - G.I. Lancaster
- Baker Heart and Diabetes Institute, Melbourne, VIC, Australia
- Department of Immunology, Monash University, Melbourne, VIC, Australia
| | - J. Ng
- School of Health Sciences, The University of Tasmania, Launceston, TAS, Australia
| | - J.M. Collins
- Wicking Dementia Research and Education Centre, College of Health and Medicine, University of Tasmania, Hobart, TAS, Australia
| | - G. Pernes
- Baker Heart and Diabetes Institute, Melbourne, VIC, Australia
| | - A. Liang
- Baker Heart and Diabetes Institute, Melbourne, VIC, Australia
| | - T. Featherby
- The Florey Institute of Neuroscience and Mental Health, Melbourne, VIC, Australia
| | - N.A. Mellet
- Baker Heart and Diabetes Institute, Melbourne, VIC, Australia
| | - B.G. Drew
- Baker Heart and Diabetes Institute, Melbourne, VIC, Australia
- Baker Department of Cardiometabolic Health, University of Melbourne, Parkville, VIC, Australia
- Central Clinical School, Monash University, Melbourne, VIC, Australia
| | - A.C. Calkin
- Baker Heart and Diabetes Institute, Melbourne, VIC, Australia
- Baker Department of Cardiometabolic Health, University of Melbourne, Parkville, VIC, Australia
- Central Clinical School, Monash University, Melbourne, VIC, Australia
| | - A.E. King
- Wicking Dementia Research and Education Centre, College of Health and Medicine, University of Tasmania, Hobart, TAS, Australia
| | - P.J. Meikle
- Baker Heart and Diabetes Institute, Melbourne, VIC, Australia
- Baker Department of Cardiometabolic Health, University of Melbourne, Parkville, VIC, Australia
- Baker Department of Cardiovascular Research Translation and Implementation, La Trobe University, Bundoora, VIC, Australia
| | - M.A. Febbraio
- Monash Institute of Pharmaceutical Sciences, Melbourne, VIC, Australia
| | - P.A. Adlard
- The Florey Institute of Neuroscience and Mental Health, Melbourne, VIC, Australia
| | - D.C. Henstridge
- Baker Heart and Diabetes Institute, Melbourne, VIC, Australia
- School of Health Sciences, The University of Tasmania, Launceston, TAS, Australia
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Chong VY, Yong CC, Ng J, Thanabalasingam D, Watterson JL, Palanisamy UD. The design of the Deaf in Touch Everywhere (DITE) TM mobile application with Deaf and interpreter communities in Malaysia. Digit Health 2024; 10:20552076241228432. [PMID: 38333634 PMCID: PMC10851767 DOI: 10.1177/20552076241228432] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2023] [Accepted: 01/09/2024] [Indexed: 02/10/2024] Open
Abstract
Background Ineffective communication with Deaf individuals in healthcare settings has led to poor outcomes including miscommunication, waste, and errors. To help address these challenges, we developed a mobile app, Deaf in Touch Everywhere (DITETM) which aims to connect the Deaf community in Malaysia with a pool of off-site interpreters through secure video conferencing. Objectives The aims of this study were to (a) assess the feasibility and acceptability of measuring unified theory of acceptance and use of technology (UTAUT) constructs for DITETM with the Deaf community and Malaysian sign language (BIM) interpreters and (b) seek input from Deaf people and BIM interpreters on DITETM to improve its design. Methods Two versions of the UTAUT questionnaire were adapted for BIM interpreters and the Deaf community. Participants were recruited from both groups and asked to test the DITE app features over a 2-week period. They then completed the questionnaire and participated in focus group discussions to share their feedback on the app. Results A total of 18 participants completed the questionnaire and participated in the focus group discussions. Ratings of performance expectancy, effort expectancy, facilitating conditions and behavioural intention were high across both groups, and suggestions were provided to improve the app. High levels of engagement suggest that measurement of UTAUT constructs with these groups (through a modified questionnaire) is feasible and acceptable. Conclusions The process of engaging end users in the design process provided valuable insights and will help to ensure that the DITETM app continues to address the needs of both the Deaf community and BIM interpreters in Malaysia.
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Affiliation(s)
- Vee Yee Chong
- Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Subang Jaya, Selangor, Malaysia
| | - Chong Chun Yong
- School of Information Technology, Monash University Malaysia, Subang Jaya, Selangor, Malaysia
| | - Jennifer Ng
- Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Subang Jaya, Selangor, Malaysia
| | - Dhaanyah Thanabalasingam
- Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Subang Jaya, Selangor, Malaysia
| | - Jessica L Watterson
- Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Subang Jaya, Selangor, Malaysia
- Faculty of Information Technology, Monash University Australia, Subang Jaya, Selangor, Malaysia
| | - Uma Devi Palanisamy
- Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Subang Jaya, Selangor, Malaysia
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Ji H, Yoo J, Fox W, Yamada M, Argall M, Egedal J, Liu YH, Wilder R, Eriksson S, Daughton W, Bergstedt K, Bose S, Burch J, Torbert R, Ng J, Chen LJ. Laboratory Study of Collisionless Magnetic Reconnection. Space Sci Rev 2023; 219:76. [PMID: 38023292 PMCID: PMC10651714 DOI: 10.1007/s11214-023-01024-3] [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] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 06/15/2023] [Accepted: 11/03/2023] [Indexed: 12/01/2023]
Abstract
A concise review is given on the past two decades' results from laboratory experiments on collisionless magnetic reconnection in direct relation with space measurements, especially by the Magnetospheric Multiscale (MMS) mission. Highlights include spatial structures of electromagnetic fields in ion and electron diffusion regions as a function of upstream symmetry and guide field strength, energy conversion and partitioning from magnetic field to ions and electrons including particle acceleration, electrostatic and electromagnetic kinetic plasma waves with various wavelengths, and plasmoid-mediated multiscale reconnection. Combined with the progress in theoretical, numerical, and observational studies, the physics foundation of fast reconnection in collisionless plasmas has been largely established, at least within the parameter ranges and spatial scales that were studied. Immediate and long-term future opportunities based on multiscale experiments and space missions supported by exascale computation are discussed, including dissipation by kinetic plasma waves, particle heating and acceleration, and multiscale physics across fluid and kinetic scales.
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Affiliation(s)
- H. Ji
- Department of Astrophysical Sciences, Princeton University, 4 Ivy Lane, Princeton, 08544 New Jersey USA
- Princeton Plasma Physics Laboratory, P.O. Box 451, Princeton, 08543 New Jersey USA
| | - J. Yoo
- Princeton Plasma Physics Laboratory, P.O. Box 451, Princeton, 08543 New Jersey USA
| | - W. Fox
- Princeton Plasma Physics Laboratory, P.O. Box 451, Princeton, 08543 New Jersey USA
| | - M. Yamada
- Princeton Plasma Physics Laboratory, P.O. Box 451, Princeton, 08543 New Jersey USA
| | - M. Argall
- Institute for the Study of Earth, Oceans, and Space, University of New Hampshire, 8 College Road, Durham, 03824 New Hampshire USA
| | - J. Egedal
- Department of Physics, University of Wisconsin - Madison, 1150 University Avenue, Madison, 53706 Wisconsin USA
| | - Y.-H. Liu
- Department of Physics and Astronomy, Dartmouth College, 17 Fayerweather Hill Road, Hanover, 03755 New Hampshire USA
| | - R. Wilder
- Department of Physics, University of Texas at Arlington, 701 S. Nedderman Drive, Arlington, 76019 Texas USA
| | - S. Eriksson
- Laboratory for Atmospheric and Space Physics, University of Colorado at Boulder, 1234 Innovation Drive, Boulder, 80303 Colorado USA
| | - W. Daughton
- Los Alamos National Laboratory, P.O. Box 1663, Los Alamos, 87545 New Mexico USA
| | - K. Bergstedt
- Department of Astrophysical Sciences, Princeton University, 4 Ivy Lane, Princeton, 08544 New Jersey USA
| | - S. Bose
- Princeton Plasma Physics Laboratory, P.O. Box 451, Princeton, 08543 New Jersey USA
| | - J. Burch
- Southwest Research Institute, 6220 Culebra Road, San Antonio, 78238 Texas USA
| | - R. Torbert
- Institute for the Study of Earth, Oceans, and Space, University of New Hampshire, 8 College Road, Durham, 03824 New Hampshire USA
| | - J. Ng
- Princeton Plasma Physics Laboratory, P.O. Box 451, Princeton, 08543 New Jersey USA
- Department of Astronomy, University of Maryland, 4296 Stadium Drive, College Park, 20742 Maryland USA
- Goddard Space Flight Center, Mail Code 130, Greenbelt, 20771 Maryland USA
| | - L.-J. Chen
- Goddard Space Flight Center, Mail Code 130, Greenbelt, 20771 Maryland USA
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Tavabie OD, Abbott J, Abeysekera KWM, Balachandrakumar VK, Bennett K, Brennan P, Buchanan R, Dhaliwal A, Galanakis V, Hardy T, Harris R, Kronsten VT, Leighton J, Li W, Yin JL, Macken L, Marjot T, Maurice JB, McDowell H, Navaratnam J, Pohl K, Nayagam JS, Saunsbury E, Scott J, Sheth A, Sinharay R, Sheiybani G, Subhani M, Tavabie OD, Turner L, White H, Zakeri N, Balachandrakumar VK, Cook C, Hardy T, Harris R, Navaratnam J, Saunsbury E, Tavabie OD, Abbas N, Abbasi A, Abdul R, Abdulaziz M, Abduljabbar D, Abeysekera KWM, Adamson R, Adebayo D, Adhikarla AK, Adler M, Ahmad S, Ahmed S, Afifi M, Akram A, Al Radhi B, Al-Talib I, Alele J, Ali AM, Almusai S, Appleby V, Asmat H, Astbury S, Atkinson A, Badrulhisham F, Balachandrakumar VK, Ball A, Banfa M, Barn J, Begum S, Belfield K, Bendall O, Bhandari R, Bhatti P, Bradley M, Brennan P, Brown E, Bryce K, Burke L, Campbell R, Cargill T, Carroll G, Cartledge J, Chatterjee D, Chaundry R, Choudhry Z, Clare K, Cobbold J, Coburn R, Corvan F, Cox R, Craig D, Creamer J, Curran C, De Silva S, Dean L, Dillon J, Dunn R, Eckersley R, Eike G, Elagib A, Elkholi A, Elshaarawy O, Faloon S, Fan F, Fazili M, Fernandes D, Fox J, Foxton M, Gaba W, Gaikwad G, Gairola A, Galanakis V, Gallaher C, Gautam N, Germain L, Giles B, Gill C, Glover B, Glover J, Gomez D, Gomez M, Gordon V, Gormley S, Goulder J, Goyal S, Greenham O, Guthrie S, Hackett R, Haddadin Y, Hadjinicolaou A, Hall J, Haque T, Hardy T, Harris R, Hart C, Hasnain Nadir SM, Hassall J, Hasan S, Hawker-Bond G, Hawkyard J, Healey S, Hornby C, Hamza M, Humayun M, Hutchison J, Iftikhar Z, Ismail A, James J, Jopson L, Juthani D, Kaina P, Karim A, Karim SM, Kashyap V, Kassab M, Katarey D, Kenny L, Kerry G, Khan A, Khan A, Khan A, Khan MT, Khan T, Khatib A, Khattak MF, King JJ, Korani M, Kotha S, Kooner E, Lam WL, Lateef M, Leith D, Li W, Liaros A, Lourenco F, Lyles A, Mahenthiran M, Magee C, Maggs D, Mahalingam A, Mahmood R, Mandour MO, Manocha N, Mansour D, Marks D, Marjot T, Martin C, Martin H, Martin I, Martin K, Maruthan S, Masin R, Mason D, Matthews C, Mavrou A, Maxan E, Maxfield D, McAvoy E, McColl K, McCaughan H, McCorry R, McGoran J, McDonald S, McDowell H, McIlwane S, Meakin O, Mebarek L, Merrill H, Michail S, Modarres P, Mohamedali A, Mohammed Y, Mohammed Z, Mohan J, Monnier C, Moran E, Morrison G, Moroni F, Msaddi A, Mutar S, Navaratnam J, Neto-Pereira L, Nahed I, Ng J, Nwoguh C, O’Kane R, Omar S, Ososanya A, Parambil JV, Patel J, Pericleous M, Pervais Z, Phoolchund A, Pietrzycki J, Pillay L, Prabhu K, Putri YRF, Qazi U, Rafique KK, Raman K, Ranade V, Rastelli F, Ratcliffe E, Rattehalli D, Raza T, Razak A, Raghuraman A, Read G, Robins A, Rushbrook S, Salama M, St. Aimee L, Saravan R, Sarkar S, Saunsbury E, Serna S, Shahzad H, Shamsaldeen M, Sharip M, Shearer J, Sheikh A, Sheiybani G, Sheth A, Sherwin M, Shintre N, Singhal S, Sinha R, Sinharay R, Smith G, Smith R, Spicer J, Spoor J, Sreenivasan S, Srinivasa A, Srivastava A, Stagg G, Stanley J, Stevenson J, Stokes D, Stroud R, Subhani M, Suliman H, Sultana M, Summers N, Sutherland C, Swann R, Sykes L, Taha M, Tan KE, Tariq Z, Ming Tay JJ, Taylor A, Thakor A, Tsang J, Tyler Z, Unitt E, Volcek E, Wischhusen J, Watson I, Watters C, Wells G, Widlak M, Williams M, Woodland H, Wren L, Xyda S, Yeh J, Young A, Jie Yuan JS, Abbott J, Abeysekera KWM, Galanakis V, Li W, Sheth A, Sinharay R, Sheiybani G, Tavabie OD, Abbott J, Abeysekera KWM, Galanakis V, Li W, Sheth A, Sinharay R, Sheiybani G, Tavabie OD, Abeysekera KWM, Brennan P, Li W, Marjot T, Tavabie OD, Aithal G, Bernal W, Dillon J, Hogan B, McPherson S, Jones R, Rowe I, Snowdon V. Defining characteristics and outcomes for patients with non-alcoholic fatty liver disease admitted to hospital with decompensated cirrhosis. J Hepatol 2023; 79:e165-e167. [PMID: 37315808 DOI: 10.1016/j.jhep.2023.05.035] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/12/2023] [Accepted: 05/14/2023] [Indexed: 06/16/2023]
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Tavabie OD, Abeysekera KWM, Brennan PN, Marjot T, Kronsten VT, Li W, Nayagam JS, Dhaliwal A, Hardy T, Maurice JB, Zakeri N, Abbas N, Abbasi A, Abbott J, Abdul R, Abdulaziz M, Abduljabbar D, Adamson R, Adebayo D, Adhikarla AK, Adler M, Afifi M, Ahmad S, Ahmed S, Aithal G, Akram A, Al Radhi B, Al-Talib I, Alele J, Ali AM, Almusai S, Appleby V, Asmat H, Astbury S, Atkinson A, Badrulhisham F, Balachandrakumar VK, Ball A, Banfa M, Barn J, Begum S, Belfield K, Bendall O, Bennett K, Bernal W, Bhandari R, Bhatti P, Bradley M, Brown E, Bryce K, Buchanan R, Burke L, Campbell R, Cargill T, Carroll G, Cartledge J, Chatterjee D, Chaundry R, Choudhry Z, Clare K, Cobbold J, Coburn R, Cook C, Corvan F, Cox R, Craig D, Creamer J, Curran C, De Silva S, Dean L, Dillon J, Dillon J, Dunn R, Eckersley R, Eike G, Elagib A, Elkholi A, Elshaarawy O, Faloon S, Fan F, Fazili M, Fernandes D, Fox J, Foxton M, Gaba W, Gaikwad G, Gairola A, Galanakis V, Gallaher C, Gautam N, Germain L, Giles B, Gill C, Glover B, Glover J, Gomez D, Gomez M, Gordon V, Gormley S, Goulder J, Goyal S, Greenham O, Guthrie S, Hackett R, Haddadin Y, Hadjinicolaou A, Hall J, Hamza M, Haque T, Harris R, Hart C, Hasan S, Hasnain Nadir SM, Hassall J, Hawker-Bond G, Hawkyard J, Healey S, Hogan B, Hornby C, Humayun MD, Hutchison J, Iftikhar Z, Ismail A, James J, Jones R, Jopson L, Juthani D, Kaina P, Karim A, Karim SM, Kashyap V, Kassab M, Katarey D, Kenny L, Kerry G, Khan A, Khan A, Khan A, Khan MT, Khan T, Khatib A, Khattak MF, King JJ, Kooner E, Korani M, Kotha S, Lam WL, Lateef M, Leighton J, Leith D, Liaros A, Liu Yin J, Lourenco F, Lyles A, Macken L, Magee C, Maggs D, Mahalingam A, Mahenthiran M, Mahmood R, Mandour MO, Manocha N, Mansour D, Marks D, Martin C, Martin H, Martin I, Martin K, Maruthan S, Masin R, Mason D, Matthews C, Mavrou A, Maxan E, Maxfield D, McAvoy E, McCaughan H, McColl K, McCorry R, McDonald S, McDowell H, McGoran J, McIlwane S, McPherson S, Meakin O, Mebarek L, Merrill H, Michail S, Modarres P, Mohamedali A, Mohammed Y, Mohammed Z, Mohan J, Monnier C, Moran E, Moroni F, Morrison G, Msaddi A, Mutar S, Nahed I, Navaratnam J, Neto-Pereira L, Ng J, Nwoguh C, O'Kane R, Omar S, Ososanya A, Parambil JV, Patel J, Pericleous M, Pervais Z, Phoolchund A, Pietrzycki J, Pillay L, Pohl K, Prabhu K, Putri YRF, Qazi U, Rafique KK, Raghuraman A, Raman K, Ranade V, Rastelli F, Ratcliffe E, Rattehalli D, Raza T, Razak A, Read G, Robins A, Rowe I, Rushbrook S, Salama M, Saravan R, Sarkar S, Saunsbury E, Scott J, Serna S, Shahzad H, Shamsaldeen M, Sharip M, Shearer J, Sheikh A, Sheiybani G, Sherwin M, Sheth A, Shintre N, Singhal S, Sinha R, Sinharay R, Smith G, Smith R, Snowdon V, Spicer J, Spoor J, Sreenivasan S, Srinivasa A, Srivastava A, St. Aimee L, Stagg G, Stanley J, Stevenson J, Stokes D, Stroud R, Subhani M, Suliman H, Sultana M, Summers N, Sutherland C, Swann R, Sykes L, Taha M, Tan KE, Tariq Z, Tay JJM, Taylor A, Thakor A, Tsang J, Turner L, Tyler Z, Unitt E, Volcek E, Watson I, Watters C, Wells G, White H, Widlak M, Williams M, Wischhusen J, Woodland H, Wren L, Xyda S, Yeh J, Young A, Yuan JSJ. Regional variation in characteristics of patients with decompensated cirrhosis admitted to hospitals in the UK. Lancet Gastroenterol Hepatol 2023; 8:604-606. [PMID: 37148900 DOI: 10.1016/s2468-1253(23)00114-0] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/13/2023] [Accepted: 04/17/2023] [Indexed: 05/08/2023]
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Barendse MEA, Lara GA, Guyer AE, Swartz JR, Taylor SL, Shirtcliff EA, Lamb ST, Miller C, Ng J, Yu G, Tully LM. Sex and pubertal influences on the neurodevelopmental underpinnings of schizophrenia: A case for longitudinal research on adolescents. Schizophr Res 2023; 252:231-241. [PMID: 36682313 PMCID: PMC10725041 DOI: 10.1016/j.schres.2022.12.011] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/04/2022] [Revised: 11/08/2022] [Accepted: 12/10/2022] [Indexed: 01/21/2023]
Abstract
Sex is a significant source of heterogeneity in schizophrenia, with more negative symptoms in males and more affective symptoms and internalizing comorbidity in females. In this narrative review, we argue that there are likely sex differences in the pathophysiological mechanisms of schizophrenia-spectrum disorders (SZ) that originate during puberty and relate to the sex-specific impacts of pubertal maturation on brain development. Pubertal maturation might also trigger underlying (genetic or other) vulnerabilities in at-risk individuals, influencing brain development trajectories that contribute to the emergence of SZ. This review is the first to integrate links between pubertal development and neural development with cognitive neuroscience research in SZ to form and evaluate these hypotheses, with a focus on the frontal-striatal and frontal-limbic networks and their hypothesized contribution to negative and mood symptoms respectively. To test these hypotheses, longitudinal research with human adolescents is needed that examines the role of sex and pubertal development using large cohorts or high risk samples. We provide recommendations for such studies, which will integrate the fields of psychiatry, developmental cognitive neuroscience, and developmental endocrinology towards a more nuanced understanding of the role of pubertal factors in the hypothesized sex-specific pathophysiological mechanisms of schizophrenia.
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Affiliation(s)
- M E A Barendse
- Department of Psychiatry and Behavioral Sciences, UC Davis, CA, USA
| | - G A Lara
- Department of Psychiatry and Behavioral Sciences, UC Davis, CA, USA
| | - A E Guyer
- Department of Human Ecology, UC Davis, CA, USA; Center for Mind and Brain, UC Davis, CA, USA
| | - J R Swartz
- Center for Mind and Brain, UC Davis, CA, USA
| | - S L Taylor
- Division of Biostatistics, Department of Public Health Sciences, UC Davis, CA, USA
| | - E A Shirtcliff
- Human Development and Family Studies, Iowa State University, Ames, IA, USA
| | - S T Lamb
- Department of Psychiatry and Behavioral Sciences, UC Davis, CA, USA
| | - C Miller
- Department of Psychiatry and Behavioral Sciences, UC Davis, CA, USA
| | - J Ng
- Department of Psychiatry and Behavioral Sciences, UC Davis, CA, USA
| | - G Yu
- Department of Psychiatry and Behavioral Sciences, UC Davis, CA, USA
| | - L M Tully
- Department of Psychiatry and Behavioral Sciences, UC Davis, CA, USA.
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Parikh P, Lee P, Low D, Kim J, Mittauer K, Bassetti M, Glide-Hurst C, Raldow A, Yang Y, Portelance L, Zaki B, Kim H, Mancias J, Ng J, Pfeffer R, Mueller A, Kelly P, Boldrini L, Fuss M, Chuong M. Stereotactic MR-Guided On-Table Adaptive Radiation Therapy (SMART) for Patients with Borderline or Locally Advanced Pancreatic Cancer: Primary Endpoint Outcomes of a Prospective Phase II Multi-Center International Trial. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.09.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [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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Kanesvaran R, Kikuchi E, Kitamura H, Ku J, Lee L, Lin TP, Nishiyama H, Ng A, Ng J, Poon D, Seo H, Shamaileh R, Spiteri C, Tan E, Tran B, Tsai YS. 150P Use of neoadjuvant chemotherapy for non-metastatic muscle-invasive bladder cancer in Asia-Pacific. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.10.185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022] Open
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Lee L, Kanesvaran R, Kikuchi E, Kitamura H, Ku J, Lin TP, Nishiyama H, Ng A, Ng J, Poon D, Seo H, Shamaileh R, Spiteri C, Tan E, Tran B, Tsai YS. 149P A need for clear definitions and improved management for BCG-unresponsive tumors in Asia-Pacific. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.10.184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/07/2022] Open
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Ng J, Chen L, Omelchenko Y, Zou Y, Lavraud B. Hybrid Simulations of the Cusp and Dayside Magnetosheath Dynamics Under Quasi-Radial Interplanetary Magnetic Fields. J Geophys Res Space Phys 2022; 127:e2022JA030359. [PMID: 36591323 PMCID: PMC9787681 DOI: 10.1029/2022ja030359] [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] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/04/2022] [Revised: 09/28/2022] [Accepted: 10/03/2022] [Indexed: 06/17/2023]
Abstract
Under quasi-radial interplanetary magnetic fields (IMF), foreshock turbulence can have an impact on the magnetosheath and cusps depending on the location of the quasi-parallel shock. We perform three-dimensional simulations of Earth's dayside magnetosphere using the hybrid code HYPERS, and compare northward and southward quasi-radial IMF configurations. We study the magnetic field configuration, fluctuations in the magnetosheath and the plasma in the regions around the northern cusp. Under northward IMF with Earthward B x , there is a time-varying plasma depletion layer immediately outside the northern cusp. In the southward IMF case, the impact of foreshock turbulence and high-speed jets, together with magnetopause reconnection, can lead to strong density enhancements in the cusp.
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Affiliation(s)
- J. Ng
- Department of AstronomyUniversity of MarylandCollege ParkMDUSA
- NASA Goddard Space Flight CenterGreenbeltMDUSA
| | - L.‐J. Chen
- NASA Goddard Space Flight CenterGreenbeltMDUSA
| | - Y. Omelchenko
- Trinum Research IncSan DiegoCAUSA
- Space Science InstituteBoulderCOUSA
| | - Y. Zou
- Department of Space ScienceUniversity of Alabama in HuntsvilleHuntsvilleALUSA
| | - B. Lavraud
- Laboratoire d'astrophysique de BordeauxCNRSUniversity BordeauxPessacFrance
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11
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Khoo TX, Yates G, Chambers B, Ng J. Wound healing complications following folded flap palatoplasty in brachycephalic dogs. Aust Vet J 2022; 100:571-578. [PMID: 36071674 DOI: 10.1111/avj.13204] [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: 03/18/2022] [Revised: 07/11/2022] [Accepted: 08/20/2022] [Indexed: 11/28/2022]
Abstract
OBJECTIVE To determine the incidence and characteristics of wound healing complications after folded flap palatoplasty (FFP). METHODS Prospective study of 25 dogs that underwent FFP as a component of corrective multilevel surgery for brachycephalic obstructive airway syndrome. Oropharyngeal re-examination was conducted after a minimum of 28 days post-operatively, unless indicated earlier by the onset of clinical signs. RESULTS Wound healing complications occurred in nine dogs (36%). Minor and major wound complications were diagnosed at a median of 36 days (1.5-51 days) post-operatively. Eight dogs had major wound complications, four of which showed no associated clinical signs. Two patterns of major wound complications were observed: incisional dehiscence (ID) with caudal retraction of the soft palate mucosa and development of a full-thickness defect (FTD) in the centre of the soft palate. Revision of the soft palate surgery was performed in five dogs, failing again in one dog with ID. Clinical signs resolved in symptomatic dogs after revision surgery to close FTD. CONCLUSION In this study, wound healing complications were common after FFP and were not associated with significant clinical deterioration. Further research is necessary to determine the value and timing of routine post-operative oropharyngeal examination for assessment of soft palate healing after FFP as well as the indication for and success of approaches to the management of wound healing complications. The two distinct patterns of FFP failure recognised may provide insight into the underlying causes and lead to refinements in folded flap palatoplasty technique.
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Affiliation(s)
- T-X Khoo
- Surgery Department, Centre for Animal Referral and Emergency (CARE), Collingwood, Victoria, Australia
| | - G Yates
- Surgery Department, Centre for Animal Referral and Emergency (CARE), Collingwood, Victoria, Australia
| | - B Chambers
- Surgery Department, Centre for Animal Referral and Emergency (CARE), Collingwood, Victoria, Australia
| | - J Ng
- Surgery Department, Animal Referral Hospital, Essendon Fields, Victoria, Australia
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12
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Ng J, Chen L, Bessho N, Shuster J, Burkholder B, Yoo J. Electron-Scale Reconnection in Three-Dimensional Shock Turbulence. Geophys Res Lett 2022; 49:e2022GL099544. [PMID: 36247516 PMCID: PMC9539853 DOI: 10.1029/2022gl099544] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/14/2022] [Revised: 08/01/2022] [Accepted: 08/03/2022] [Indexed: 06/16/2023]
Abstract
Magnetic reconnection has been observed in the transition region of quasi-parallel shocks. In this work, the particle-in-cell method is used to simulate three-dimensional reconnection in a quasi-parallel shock. The shock transition region is turbulent, leading to the formation of reconnecting current sheets with various orientations. Two reconnection sites with weak and strong guide fields are studied, and it is shown that reconnection is fast and transient. Reconnection sites are characterized using diagnostics including electron flows and magnetic flux transport. In contrast to two-dimensional simulations, weak guide field reconnection is realized. Furthermore, the current sheets in these events form in a direction almost perpendicular to those found in two-dimensional simulations, where the reconnection geometry is constrained.
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Affiliation(s)
- J. Ng
- Department of AstronomyUniversity of MarylandCollege ParkMDUSA
- NASA Goddard Space Flight CenterGreenbeltMDUSA
| | - L.‐J. Chen
- NASA Goddard Space Flight CenterGreenbeltMDUSA
| | - N. Bessho
- Department of AstronomyUniversity of MarylandCollege ParkMDUSA
- NASA Goddard Space Flight CenterGreenbeltMDUSA
| | - J. Shuster
- Department of AstronomyUniversity of MarylandCollege ParkMDUSA
- NASA Goddard Space Flight CenterGreenbeltMDUSA
| | - B. Burkholder
- NASA Goddard Space Flight CenterGreenbeltMDUSA
- University of MarylandBaltimore CountyMDUSA
| | - J. Yoo
- Princeton Plasma Physics LaboratoryPrincetonNJUSA
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13
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Hamilton J, Huang N, Ng J, Gubler T, Khuda R, Deckelbaum R, Chang C. C-13 NMR spectroscopic characterization and distinction of EPA and DHA in lipid emulsions. Atherosclerosis 2022. [DOI: 10.1016/j.atherosclerosis.2022.06.501] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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14
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Yap H, Loong Y, Raffiee N, Elankovan A, Wang X, Leng S, Ng J, Zhong L, Tan S, Baskaran L. 511 Quantification Of Epicardial Adipose Tissue On Non-Contrast CT: Reproducibility In A Cohort Of 50 Asian Patients. J Cardiovasc Comput Tomogr 2022. [DOI: 10.1016/j.jcct.2022.06.122] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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15
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Bays HE, Ng J, Sicat J, Look M. Obesity Pillars Roundtable: Obesity and East Asians. Obes Pillars 2022; 2:100011. [PMID: 37990717 PMCID: PMC10662030 DOI: 10.1016/j.obpill.2022.100011] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/25/2022] [Revised: 02/11/2022] [Accepted: 02/15/2022] [Indexed: 11/23/2023]
Abstract
Background Individuals from East Asia make up about 1/5th of the world's population. Individuals from South Asia with obesity are well-described to have increased susceptibility to cardiovascular disease (CVD) risk factors and increased risk of CVD events. Less well described are the adiposopathic effects of the disease of obesity among East Asians. Methods This roundtable discussion includes 3 obesity medicine specialists with experience in the clinical management of obesity among patients of East Asian descent. Included are citations regarding obesity and East Asians. Results In general, East Asians are at decreased risk for CVD compared to Whites and South Asians. However, compared to Whites, for the same body mass index, East Asians are at increased risk for metabolic diseases such as type 2 diabetes mellitus. Both obesity and type 2 diabetes mellitus are epidemics in East Asian countries. In this Roundtable, the panelists discuss East Asian nutrition and physical activity, with special attention given to Asian foods, especially rice. The panelists also discuss East Asian genetic predispositions for development of visceral adiposity, type 2 diabetes mellitus, as well as genetic predisposition to drug metabolism and potential drug and herbal interactions, as commonly encountered in patients with obesity. Finally, the panelists give summary tips for managing East Asian patients with obesity. Conclusion The three panelists of this roundtable describe their practical diagnostic processes and treatment plans for patients from East Asia, with an emphasis on a patient-centered approach to obesity in this unique population.
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Affiliation(s)
- Harold Edward Bays
- Diplomate of American Board of Obesity Medicine, Medical Director / President Louisville Metabolic and Atherosclerosis Research Center, Clinical Associate Professor / University of Louisville Medical School, 3288 Illinois Avenue, Louisville, KY, 40213, USA
| | - Jennifer Ng
- Diplomate of American Board of Obesity Medicine, 234 East 85 Street, 6 Floor, New York, NY, 10028, USA
| | - Jeffrey Sicat
- Diplomate of American Board of Obesity Medicine, 4439 Cox Road, Glen Allen, VA, 23060, USA
| | - Michelle Look
- Diplomate of American Board of Obesity Medicine, 6699 Alvarado Road, Suite 2100, San Diego, CA, 92120, USA
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16
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Chieng D, Segan L, Sugumar H, Al-Kaisey A, Hawson J, Moore B, Nam M, Voskoboinik A, Prabhu S, Ling L, Ng J, Brown G, Lee G, Morton J, Debinski H, Kalman J, Kistler P. High Power Short Duration (HPSD) is Safe and Improves Outcomes for Atrial Fibrillation Ablation vs Lower Power Longer Duration (LPLD): A Prospective Multi-Centre Randomised Controlled Study (Hi-Lo HEAT trial). Heart Lung Circ 2022. [DOI: 10.1016/j.hlc.2022.06.025] [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: 11/25/2022]
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17
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Ng J. P108 GENOME CONSTRUCTION AND ALLERGEN IDENTIFICATION IN GRASS CARP (CTENOPHARYNGODON IDELLA). Ann Allergy Asthma Immunol 2021. [DOI: 10.1016/j.anai.2021.08.126] [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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18
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Piske M, Homayra F, Min JE, Zhou H, Marchand C, Mead A, Ng J, Woolner M, Nosyk B. Opioid Use Disorder and Perinatal Outcomes. Pediatrics 2021; 148:peds.2021-050279. [PMID: 34479983 DOI: 10.1542/peds.2021-050279] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 07/08/2021] [Indexed: 11/24/2022] Open
Abstract
OBJECTIVES Evidence on the perinatal health of mother-infant dyads affected by opioids is limited. Elevated risks of opioid-related harms for people with opioid use disorder (OUD) increase the urgency to identify protective factors for mothers and infants. Our objectives were to determine perinatal outcomes after an OUD diagnosis and associations between opioid agonist treatment and birth outcomes. METHODS We conducted a population-based retrospective study among all women with diagnosed OUD before delivery and within the puerperium period in British Columbia, Canada, between 2000 and 2019 from provincial health administrative data. Controlling for demographic and clinical characteristics, we determined associations of opioid agonist treatment on birth weight, gestational age, infant disorders related to gestational age and birth weight, and neonatal abstinence syndrome via logistic regression. RESULTS The population included 4574 women and 6720 live births. Incidence of perinatal OUD increased from 166 in 2000 to 513 in 2019. Compared with discontinuing opioid agonist treatment during pregnancy, continuous opioid agonist treatment reduced odds of preterm birth (adjusted odds ratio: 0.6; 95% confidence interval: 0.4-0.8) and low birth weight (adjusted odds ratio: 0.4; 95% confidence interval: 0.2-0.7). Treatment with buprenorphine-naloxone (compared with methadone) reduced odds of each outcome including neonatal abstinence syndrome (adjusted odds ratio: 0.6; 95% confidence interval: 0.4-0.9). CONCLUSIONS Perinatal OUD in British Columbia tripled in incidence over a 20-year period. Sustained opioid agonist treatment during pregnancy reduced the risk of adverse birth outcomes, highlighting the need for expanded services, including opioid agonist treatment to support mothers and infants.
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Affiliation(s)
- Micah Piske
- Centre for Health Evaluation and Outcome Sciences, St Paul's Hospital, Vancouver, British Columbia, Canada
| | - Fahmida Homayra
- Centre for Health Evaluation and Outcome Sciences, St Paul's Hospital, Vancouver, British Columbia, Canada
| | - Jeong E Min
- Centre for Health Evaluation and Outcome Sciences, St Paul's Hospital, Vancouver, British Columbia, Canada
| | - Haoxuan Zhou
- Centre for Health Evaluation and Outcome Sciences, St Paul's Hospital, Vancouver, British Columbia, Canada
| | - Carolyn Marchand
- British Columbia Centre on Substance Use, Vancouver, British Columbia, Canada.,Department of Family Practice, University of British Columbia, Vancouver, British Columbia, Canada
| | - Annabel Mead
- British Columbia Centre on Substance Use, Vancouver, British Columbia, Canada.,Department of Family Practice, University of British Columbia, Vancouver, British Columbia, Canada
| | - Jennifer Ng
- British Columbia Centre on Substance Use, Vancouver, British Columbia, Canada.,Department of Family Practice, University of British Columbia, Vancouver, British Columbia, Canada
| | - Megan Woolner
- British Columbia Centre on Substance Use, Vancouver, British Columbia, Canada.,Department of Family Practice, University of British Columbia, Vancouver, British Columbia, Canada
| | - Bohdan Nosyk
- Centre for Health Evaluation and Outcome Sciences, St Paul's Hospital, Vancouver, British Columbia, Canada .,Simon Fraser University, Faculty of Health Sciences, Burnaby, British Columbia, Canada
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Wolfe C, Rudd E, Ng J, Weir J, Fuller LC. An unusual dermoscopic appearance of scabies. Br J Dermatol 2021; 185:e69. [PMID: 34096040 DOI: 10.1111/bjd.20423] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2020] [Revised: 03/16/2021] [Accepted: 03/18/2021] [Indexed: 11/28/2022]
Affiliation(s)
- C Wolfe
- Barts Health NHS Trust, The Royal Hospital, London, UK
| | - E Rudd
- Department of Dermatology, Chelsea and Westminster Hospital NHS Foundation Trust, London, UK
| | - J Ng
- Department of Dermatology, Chelsea and Westminster Hospital NHS Foundation Trust, London, UK
| | - J Weir
- Department of Histopathology, Imperial College Healthcare NHS Trust, London, UK
| | - L C Fuller
- Department of Dermatology, Chelsea and Westminster Hospital NHS Foundation Trust, London, UK.,International Foundation for Dermatology, London, UK
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20
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Ng J, Sun K, Sharratt P, Harber M, Muthuppalaniappan V. FC 048IS AKI IN COVID-19 PATIENTS ASSOCIATED WITH INCREASED LENGTH OF STAY AND MORTALITY? Nephrol Dial Transplant 2021. [PMCID: PMC8194980 DOI: 10.1093/ndt/gfab116.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Background and Aims Acute kidney injury (AKI) affects 22% of hospitalised patients and is associated with a 21.9% increased risk of mortality in non COVID-19 presentations. Studies of patients hospitalised with COVID-19 have estimated the prevalence of AKI between 5.1-36.6%. The objective of the study was to identify the prevalence of AKI in COVID-19 patients requiring admissions and associated adverse outcomes. Method We conducted a retrospective observational cohort study of all patients admitted to hospital with a diagnosis of COVID-19 from 10th March to 7th May 2020. COVID-19 status was defined by a positive COVID-19 PCR nasopharyngeal and oropharyngeal swabs. Patients younger than 18 years of age were excluded from final analysis. Demographic data, past medical history and blood results were obtained from electronic health records. AKI was defined according to KDIGO criteria. Results 382 patients (219 Male) were included in the final analysis. The median age of patients was 69 years (Range 18-99). AKI occurred in 153 (40%) patients (103 Male), with a median age of 74 years. 111 (72.5%) patients had AKI on admission, 42 (27.5%) developed AKI while hospitalised. Average clinical frailty score (CFS) in the AKI group was 4. Median creatinine kinase in the AKI group was 213 (IQR 149-1260). The peak stages of AKI were Stage 1 in 100/153 (65.3%), Stage 2 in 29/153 (19%) and Stage 3 in 24/153 (15.7%). Of AKI patients 14/153 (9.2%) required renal replacement therapy. The mean peak serum creatinine was 246umol/L which was on Day 5 of admission and Day 11 of symptoms on average. 90/153 (58.8%) patients had recovery of kidney function which includes 7 patients (50%) patients becoming dialysis independent. 40/76 (53%) patients who required respiratory support with either CPAP or mechanical ventilation had evidence of AKI compared to 113/304 (37%) of non-ventilated patients. Amongst patients with AKI, 61/153 (40%) died, 64/153 (42%) were discharged, 20/153 (13%) remain in hospital and 8/153 (5%) were transferred to another hospital with 4 of the patients still requiring dialysis. In comparison, in patients with no AKI, 43/228 (19%) died, 174/228 (76%) were discharged, 9/228 (4%) remain in hospital and 2/228 (1%) were transferred to another hospital. Length of stay (LoS) of patients included in the study ranged from 0 to 102 days. The mean LoS in the AKI group was 18.1 ± 17.5 days (Range 0-102). The mean LoS in the non-AKI group was 10.5 ± 13.30 days (Range 0-84). There was a significant difference in the LoS between the 2 groups, p<0.01 (95% CI: 4.1, 11.1). Of all 153 AKI patients 61 (40%) deaths occurred, compared to 43/228 (19%) in the non-AKI group, this difference was significant, p<0.01, OR= 2.89 (95% CI: 1.81, 4.58). Suggesting that patients with AKI had a 74% chance of increased death. Univariate analysis showed that age, males, baseline eGFR, albumin, CFS and Charlson comorbidity index were predictors of AKI. Multivariate analysis showed that independent predictors of AKI included males, black and Asian race, baseline eGFR and albumin. An increase in baseline eGFR by 1ml/min in COVID-19 patients was associated with a 2.4% risk reduction in death, p<0.01, OR= 0.976 (95% CI: 1.02, 1.03). Conclusion AKI is a poor prognosticator in patients with COVID-19 with prolonged hospitalisation and increased mortality.
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Affiliation(s)
- Jennifer Ng
- Whittington Health NHS Trust, Nephrology, United Kingdom
| | - Kristi Sun
- Whittington Health NHS Trust, Nephrology, United Kingdom
| | | | - Mark Harber
- Whittington Health NHS Trust, Nephrology, United Kingdom
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Horsburgh D, Song S, Kim J, Toh K, Ng J, Stratton G, Lee D, Yoon S, Park K, Jung H, Lim S, Kim D, Stirling R, Kim J, Patel D. P09.52 Explore-LC: Uniting Existing Real-World Date Sources to Create a Novel Asia-Pacific Wide Research Platform for Non-Small Cell Lung Cancer. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.480] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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22
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Best S, Hess J, Souza-Fonseca Guimaraes F, Cursons J, Kersbergen A, You Y, Ng J, Davis M, Leong T, Irving L, Ritchie M, Steinfort D, Huntington N, Sutherland K. FP10.02 Investigating the Immunophenotype of Small Cell Lung Cancer to Improve Immunotherapeutic Targeting. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.124] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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23
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Icke O, van Es DM, de Koning MF, Wuister JJG, Ng J, Phua KM, Koh YKK, Chan WJ, Tao G. Performance improvement of wastewater treatment processes by application of machine learning. Water Sci Technol 2020; 82:2671-2680. [PMID: 33341761 DOI: 10.2166/wst.2020.382] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Improving wastewater treatment processes is becoming increasingly important, due to more stringent effluent quality requirements, the need to reduce energy consumption and chemical dosing. This can be achieved by applying artificial intelligence. Machine learning is implemented in two domains: (1) predictive control and (2) advanced analytics. This is currently being piloted at the integrated validation plant of PUB, Singapore's National Water Agency. (1) Primarily, predictive control is applied for optimised nutrient removal. This is obtained by application of a self-learning feedforward algorithm, which uses load prediction and machine learning, fine-tuned with feedback on ammonium effluent. Operational results with predictive control show that the load prediction has an accuracy of ≈88%. It is also shown that an up to ≈15% reduction of aeration amount is achieved compared to conventional control. It is proven that this load prediction-based control leads to stable operation and meeting effluent quality requirements as an autopilot system. (2) Additionally, advanced analytics are being developed for operational support. This is obtained by application of quantile regression neural network modelling for anomaly detection. Preliminary results illustrate the ability to autodetect process and instrument anomalies. These can be used as early warnings to deliver data-driven operational support to process operators.
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Affiliation(s)
- O Icke
- Aquasuite, Royal HaskoningDHV, Laan 1914 35, 3818 EX Amersfoort, The Netherlands E-mail:
| | - D M van Es
- Aquasuite, Royal HaskoningDHV, Laan 1914 35, 3818 EX Amersfoort, The Netherlands E-mail:
| | - M F de Koning
- Aquasuite, Royal HaskoningDHV, Laan 1914 35, 3818 EX Amersfoort, The Netherlands E-mail:
| | - J J G Wuister
- Aquasuite, Royal HaskoningDHV, Laan 1914 35, 3818 EX Amersfoort, The Netherlands E-mail:
| | - J Ng
- PUB, Singapore's National Water Agency, 40 Scotts Rd, Singapore 228231, Singapore
| | - K M Phua
- PUB, Singapore's National Water Agency, 40 Scotts Rd, Singapore 228231, Singapore
| | - Y K K Koh
- PUB, Singapore's National Water Agency, 40 Scotts Rd, Singapore 228231, Singapore
| | - W J Chan
- PUB, Singapore's National Water Agency, 40 Scotts Rd, Singapore 228231, Singapore
| | - G Tao
- PUB, Singapore's National Water Agency, 40 Scotts Rd, Singapore 228231, Singapore
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Arndt PT, Huennekens J, Packard C, Tran V, Carey J, Livingston R, Marcune VM, Rowe BA, Ng J, Qi J, Lyyra AM, Ahmed EH. The effect of collisions on the rotational angular momentum of diatomic molecules studied using polarized light. J Chem Phys 2020; 153:184310. [DOI: 10.1063/5.0024380] [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: 11/14/2022] Open
Affiliation(s)
- P. T. Arndt
- Physics Department, Temple University, Philadelphia, Pennsylvania 19122, USA
| | - J. Huennekens
- Physics Department, Lehigh University, Bethlehem, Pennsylvania 18015, USA
| | - C. Packard
- Physics Department, Temple University, Philadelphia, Pennsylvania 19122, USA
| | - V. Tran
- Physics Department, Temple University, Philadelphia, Pennsylvania 19122, USA
| | - J. Carey
- Physics Department, Temple University, Philadelphia, Pennsylvania 19122, USA
| | - R. Livingston
- Physics Department, Temple University, Philadelphia, Pennsylvania 19122, USA
| | - V. M. Marcune
- Physics Department, Temple University, Philadelphia, Pennsylvania 19122, USA
| | - B. A. Rowe
- Physics Department, Temple University, Philadelphia, Pennsylvania 19122, USA
| | - J. Ng
- Physics Department, Temple University, Philadelphia, Pennsylvania 19122, USA
| | - J. Qi
- Department of Physics and Astronomy, Penn State University, Berks Campus, Reading, Pennsylvania 19610, USA
| | - A. M. Lyyra
- Physics Department, Temple University, Philadelphia, Pennsylvania 19122, USA
| | - E. H. Ahmed
- Physics Department, Temple University, Philadelphia, Pennsylvania 19122, USA
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Agrawal V, Kaylor K, Fenton-Kerimian M, Golden E, Kang J, Ng J, Formenti S. Feasibility of Hypo-fractionated Radiation Therapy to the Breast and Nodal Stations after Neo-Adjuvant Systemic Therapy and Surgery (NCT02917421). Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.1166] [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: 11/27/2022]
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Kang J, Demaria S, Cardenes H, Pilones K, Jozsef G, Ng J, Ballman K, Formenti S. Effect of Radiotherapy Variables on Circulating Effectors of Immune Response. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.1684] [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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27
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Gracia PV, Caballero LC, Sánchez J, Espinosa J, Campana S, Quintero A, Luo C, Ng J. Pregnancies recovered from SARS-CoV-2 infection in second or third trimester: obstetric evolution. Ultrasound Obstet Gynecol 2020; 56:777-778. [PMID: 32996648 PMCID: PMC7537281 DOI: 10.1002/uog.23134] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/01/2020] [Revised: 09/16/2020] [Accepted: 09/18/2020] [Indexed: 05/23/2023]
Affiliation(s)
- P. Vigil‐De Gracia
- Investigador distinguido del Sistema Nacional de InvestigaciónComplejo Hospitalario Dr. AAM Caja de Seguro Social, SENACYTPanamaPanama
| | - L. C. Caballero
- Ginecología y ObstetriciaHospital Luis “Chico Fábrega”, Santiago‐VeraguasPanama
| | - J. Sánchez
- Ginecología y ObstetriciaHospital Santo TomásPanamaPanama
| | - J. Espinosa
- Ginecología y ObstetriciaHospital Santo TomásPanamaPanama
| | - S. Campana
- Ginecología y ObstetriciaComplejo Hospitalario Dr. AAM Caja de Seguro Social, PanamaPanama
| | - A. Quintero
- Ginecología y ObstetriciaHospital José Domingo de ObaldíaDavidChiriquíPanama
| | - C. Luo
- Ginecología y ObstetriciaComplejo Hospitalario Dr. AAM Caja de Seguro Social, PanamaPanama
| | - J. Ng
- Ginecología y ObstetriciaComplejo Hospitalario Dr. AAM Caja de Seguro Social, PanamaPanama
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Kaylor K, Fecteau R, Pennell R, Chen S, Balogun O, Cardenes H, Golden E, Ng J. Initial Outcomes And Treatment-Associated Toxicities Using Stereotactic MRI-Guided Adaptive Radiation Therapy For Pancreatic Cancer Patients Treated At A Single Institution. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2020.07.1872] [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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Ng J, Rajput A, Ng Q, Sarkar A. PCN56 Addressing the Credibility GAP of Real-World Evidence Generation in Southeast ASIA: An Analysis of 200 Articles over 10 YEARS. Value Health Reg Issues 2020. [DOI: 10.1016/j.vhri.2020.07.106] [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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Thompson J, Ng J, Armstrong B, Feletto E, Ha T. Differences in Colorectal Cancer (CRC) patients who did and did not undergo screening. Eur J Public Health 2020. [DOI: 10.1093/eurpub/ckaa165.1343] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
The Australian National Bowel Cancer Screening Program (NBSCP) is a free population-based screening program which aims to identify precancerous lesions and early colorectal cancer (CRC) using an immunochemical faecal occult blood test in average risk Australians. Formally commencing in 2006, NBCSP participation rate in eligible 50-74-year-old people was 42% in 2018. The barriers and facilitators of participation in the NBCSP have been explored for the general, at-risk population but not in a population of CRC patients. This is the first study to assess a population of CRC patients, post diagnosis, who would have been eligible for CRC screening to determine the barriers and facilitators to screening.
Methods
A cross sectional study nested within a cohort study. Data from CRC patients who participated in the 45 and Up Study; the largest cohort study in Australia and southern hemisphere, were analysed to compare those who had and had not participated in CRC screening. Logistic regression analyses were conducted using RStudio (version 3.5.2, Boston, Massachusetts, USA.). Multiple Imputation (MI), was used to handle missing values assumed to be missing at random.
Results
A total of 339 CRC patients were included. Patients who were female, overweight (≥25kg/m2), consumed less than the recommended five servings of vegetables per day, consumed less than or equal to fourteen standard drinks per week (compared to non-drinkers) or did not meet physical activity guidelines were significantly less likely to have participated in screening.
Conclusions
Our study has taken a unique approach to identifying a high-risk group by exploring factors to screening participation in CRC patients. CRC patients with less healthy lifestyles were less likely to participate in screening. In contrast to previous studies, female patients were less likely to participate in screening than males were. This was an unexpected finding and should be replicated.
Key messages
Not surprising that those with less healthy lifestyle practices also reflected less than ideal screening practices. Surprising that female patients participated less in screening than males. Future interventions to improve CRC screening participation rates should consider specialised messaging for average-risk females who are overweight not meeting dietary or physical activity guidelines.
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Affiliation(s)
- J Thompson
- School of Health and Society, The University of Wollongong, Wollongong, Australia
| | - J Ng
- School of Health and Society, The University of Wollongong, Wollongong, Australia
| | - B Armstrong
- School of Public Health, University of Sydney, Sydney, Australia
- School of Population and Global Health, University of Western Australia, Perth, Australia
| | - E Feletto
- School of Public Health, University of Sydney, Sydney, Australia
- Cancer Research Division, Cancer Council NSW, Sydney, Australia
| | - T Ha
- School of Health and Society, The University of Wollongong, Wollongong, Australia
- Research Assets Division, Sax Institute, Sydney, Australia
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Kravvas G, Ge L, Ng J, Shim TN, Doiron PR, Watchorn R, Kentley J, Panou E, Dinneen M, Freeman A, Jameson C, Haider A, Francis N, Minhas S, Alnajjar H, Muneer A, Bunker CB. The management of penile intraepithelial neoplasia (PeIN): clinical and histological features and treatment of 345 patients and a review of the literature. J DERMATOL TREAT 2020; 33:1047-1062. [DOI: 10.1080/09546634.2020.1800574] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- G. Kravvas
- Department of Dermatology, University College London Hospitals, London, UK
| | - L. Ge
- Department of Dermatology, University College London Hospitals, London, UK
| | - J. Ng
- Department of Dermatology, Chelsea & Westminster Hospital, London, UK
| | - T. N. Shim
- Department of Dermatology, University College London Hospitals, London, UK
| | - P. R. Doiron
- Department of Dermatology, University College London Hospitals, London, UK
| | - R. Watchorn
- Department of Dermatology, University College London Hospitals, London, UK
| | - J. Kentley
- Department of Dermatology, Chelsea & Westminster Hospital, London, UK
| | - E. Panou
- Department of Dermatology, University College London Hospitals, London, UK
| | - M. Dinneen
- Department of Urology, Chelsea & Westminster Hospital, London, UK
| | - A. Freeman
- Department of Histopathology, University College London Hospitals, London, UK
| | - C. Jameson
- Department of Histopathology, University College London Hospitals, London, UK
| | - A. Haider
- Department of Histopathology, University College London Hospitals, London, UK
| | - N. Francis
- Department of Histopathology, Imperial College Hospitals, London, UK
| | - S. Minhas
- Department of Urology, Imperial College Hospitals, London, UK
| | - H. Alnajjar
- Department of Urology, University College London Hospitals, London, UK
| | - A. Muneer
- Department of Urology, University College London Hospitals, London, UK
| | - C. B. Bunker
- Department of Dermatology, University College London Hospitals, London, UK
- Department of Dermatology, Chelsea & Westminster Hospital, London, UK
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Chen LJ, Wang S, Le Contel O, Rager A, Hesse M, Drake J, Dorelli J, Ng J, Bessho N, Graham D, Wilson LB, Moore T, Giles B, Paterson W, Lavraud B, Genestreti K, Nakamura R, Khotyaintsev YV, Ergun RE, Torbert RB, Burch J, Pollock C, Russell CT, Lindqvist PA, Avanov L. Lower-Hybrid Drift Waves Driving Electron Nongyrotropic Heating and Vortical Flows in a Magnetic Reconnection Layer. Phys Rev Lett 2020; 125:025103. [PMID: 32701350 DOI: 10.1103/physrevlett.125.025103] [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] [Subscribe] [Scholar Register] [Received: 10/10/2019] [Accepted: 06/11/2020] [Indexed: 06/11/2023]
Abstract
We report measurements of lower-hybrid drift waves driving electron heating and vortical flows in an electron-scale reconnection layer under a guide field. Electrons accelerated by the electrostatic potential of the waves exhibit perpendicular and nongyrotropic heating. The vortical flows generate magnetic field perturbations comparable to the guide field magnitude. The measurements reveal a new regime of electron-wave interaction and how this interaction modifies the electron dynamics in the reconnection layer.
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Affiliation(s)
- L-J Chen
- NASA Goddard Space Flight Center, Greenbelt, Maryland 20771, USA
| | - S Wang
- NASA Goddard Space Flight Center, Greenbelt, Maryland 20771, USA
- University of Maryland, College Park, Maryland 20747, USA
| | - O Le Contel
- CNRS/Ecole Polytechnique/Sorbonne Université/Univ. Paris Sud/Observatoire de Paris, Paris F91128, France
| | - A Rager
- NASA Goddard Space Flight Center, Greenbelt, Maryland 20771, USA
| | - M Hesse
- University of Bergen, Bergen 5020, Norway
| | - J Drake
- University of Maryland, College Park, Maryland 20747, USA
| | - J Dorelli
- NASA Goddard Space Flight Center, Greenbelt, Maryland 20771, USA
| | - J Ng
- NASA Goddard Space Flight Center, Greenbelt, Maryland 20771, USA
- University of Maryland, College Park, Maryland 20747, USA
| | - N Bessho
- NASA Goddard Space Flight Center, Greenbelt, Maryland 20771, USA
- University of Maryland, College Park, Maryland 20747, USA
| | - D Graham
- Swedish Institute of Space Physics, Uppsala SE-75121, Sweden
| | - Lynn B Wilson
- NASA Goddard Space Flight Center, Greenbelt, Maryland 20771, USA
| | - T Moore
- NASA Goddard Space Flight Center, Greenbelt, Maryland 20771, USA
| | - B Giles
- NASA Goddard Space Flight Center, Greenbelt, Maryland 20771, USA
| | - W Paterson
- NASA Goddard Space Flight Center, Greenbelt, Maryland 20771, USA
| | - B Lavraud
- Institut de Recherche en Astrophysique et Planétologie, Université de Toulouse (UPS), CNRS, CNES, Toulouse 31027 Cedex 4, France
| | - K Genestreti
- University of New Hampshire, Durham, New Hampshire 03824, USA
| | - R Nakamura
- Space Research Institute, Austrian Academy of Sciences, Graz A-8042, Austria
| | | | - R E Ergun
- University of Colorado, Boulder, Colorado 80305, USA
| | - R B Torbert
- University of New Hampshire, Durham, New Hampshire 03824, USA
| | - J Burch
- Southwest Research Institute, San Antonio, Texas 78238, USA
| | - C Pollock
- Denali Scientific, Healy, Alaska 99743, USA
| | - C T Russell
- University of California, Los Angeles, Los Angeles, California 90095, USA
| | - P-A Lindqvist
- KTH Royal Institute of Technology, Stockholm SE-11428, Sweden
| | - L Avanov
- NASA Goddard Space Flight Center, Greenbelt, Maryland 20771, USA
- University of Maryland, College Park, Maryland 20747, USA
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Smith-Gorvie T, Nyhof-Young J, Ng J, D'Urzo T, Katzman D. Medical student perceptions of research training on patient care during clerkship. MedEdPublish (2016) 2020; 9:107. [PMID: 38073812 PMCID: PMC10702863 DOI: 10.15694/mep.2020.000107.1] [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] [Indexed: 12/22/2023] Open
Abstract
This article was migrated. The article was marked as recommended. Background Health Science Research (HSR) is a pre-clerkship component of the University of Toronto (U of T) MD Program. Through online modules and tutorials, students learn to understand and apply research, and write an original research protocol. This study explored students' perceptions on how HSR prepared them to identify, critically appraise and consume research during clerkship. Methods An online 12-item questionnaire surveyed U of T medical students (Class of 2018) who completed HSR in 2016. Basic descriptive statistics were performed; free text responses were analysed via descriptive thematic analysis. Results Twenty six percent (67/262) of students participated. Approximately half either agreed/strongly agreed that HSR helped them to critically appraise research articles (50.7%, 32/63) and assess applicability of results to patient care (50.8%, 32/63). Three themes emerged: i) desire for increased critical appraisal, ii) producing research less important than consuming research, iii) developing a greater appreciation of research during clerkship. Conclusions Students' perceptions on HSR's value during clerkship were modest; they desired greater focus on learning to be consumers of research. These results will refine HS, and our observations may be useful to other educators, as this type of intervention is not represented in existing literature.
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Chiew G, Ng J, Lim J, Nguyen T, Fu B, Lin X. Large scale 3D bioreactor technology: linear scale up of mesenchymal stromal cell expansion with tidexcell™ system. Cytotherapy 2020. [DOI: 10.1016/j.jcyt.2020.03.314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Prasath A, Ho A, Ng J, Lin PY, Yang KL. Discovery of a novel HLA-A*02 variant, HLA-A*02:402, in a Singaporean cord blood unit. HLA 2020; 96:205-206. [PMID: 32167234 DOI: 10.1111/tan.13860] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [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: 03/04/2020] [Revised: 03/09/2020] [Accepted: 03/09/2020] [Indexed: 11/28/2022]
Abstract
Nucleotide replacements in codons 145 and 149 of HLA-A*02:03:01 result in a new allele, HLA-A*02:402.
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Affiliation(s)
- Arun Prasath
- Department of Strategy and Compliance, Singapore Cord Blood Bank, Singapore, Singapore
| | - Aloysius Ho
- Department of Strategy and Compliance, Singapore Cord Blood Bank, Singapore, Singapore
| | - Jennifer Ng
- C. W. Bill Young Department of Defense Marrow Donor Recruitment and Research Program, Georgetown University, Rockville, Maryland, USA
| | - Py-Yu Lin
- Laboratory of Immunogenetics, Tzu Chi Cord Blood Bank and Buddhist Tzu Chi Bone Marrow Donor Registry, Buddhist Tzu Chi Stem Cells Centre, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan
| | - Kuo-Liang Yang
- Laboratory of Immunogenetics, Tzu Chi Cord Blood Bank and Buddhist Tzu Chi Bone Marrow Donor Registry, Buddhist Tzu Chi Stem Cells Centre, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation, Hualien, Taiwan.,Department of Laboratory Medicine and Biotechnology, Buddhist Tzu Chi University, Hualien, Taiwan
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36
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Ng J, Martinez RS, Martinez S. Focus on Faculty: A Missing Link in Community–University Partnerships. Journal of Educational and Psychological Consultation 2020. [DOI: 10.1080/10474412.2020.1726765] [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: 10/25/2022]
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37
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Ng J. Web Exclusive. Annals Graphic Medicine - W.O.W. Ann Intern Med 2020; 172:W38. [PMID: 31958839 DOI: 10.7326/g19-0017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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38
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Ng J. Web Exclusive. Annals Graphic Medicine - Fear and Loathing in RA. Ann Intern Med 2019; 171:W78. [PMID: 31766055 DOI: 10.7326/g19-0013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
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Egedal J, Ng J, Le A, Daughton W, Wetherton B, Dorelli J, Gershman D, Rager A. Pressure Tensor Elements Breaking the Frozen-In Law During Reconnection in Earth's Magnetotail. Phys Rev Lett 2019; 123:225101. [PMID: 31868399 DOI: 10.1103/physrevlett.123.225101] [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] [Subscribe] [Scholar Register] [Received: 12/20/2018] [Revised: 08/22/2019] [Indexed: 06/10/2023]
Abstract
Aided by fully kinetic simulations, spacecraft observations of magnetic reconnection in Earth's magnetotail are analyzed. The structure of the electron diffusion region is in quantitative agreement with the numerical model. Of special interest, the spacecraft data reveal how reconnection is mediated by off-diagonal stress in the electron pressure tensor breaking the frozen-in law of the electron fluid.
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Affiliation(s)
- J Egedal
- Department of Physics, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - J Ng
- Center for Heliophysics, Princeton Plasma Physics Laboratory, Princeton, New Jersey 08543, USA
| | - A Le
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - W Daughton
- Los Alamos National Laboratory, Los Alamos, New Mexico 87545, USA
| | - B Wetherton
- Department of Physics, University of Wisconsin-Madison, Madison, Wisconsin 53706, USA
| | - J Dorelli
- Heliophysics Science Division, NASA Goddard Space Flight Center, Greenbelt, Maryland 20771, USA
| | - D Gershman
- Heliophysics Science Division, NASA Goddard Space Flight Center, Greenbelt, Maryland 20771, USA
| | - A Rager
- Heliophysics Science Division, NASA Goddard Space Flight Center, Greenbelt, Maryland 20771, USA
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Ngoi N, Heong V, Kumarakulasinghe N, Phyu P, Peh E, Lim S, Lim Y, Tang J, Choo B, Koh V, Ilancheran A, Low J, Ng J, Thian Y, Tan D. Phase I study of low dose whole abdominal radiation therapy (LDWART) in combination with weekly paclitaxel (wP) for platinum resistant ovarian cancer (PROC). Ann Oncol 2019. [DOI: 10.1093/annonc/mdz250.040] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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41
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Wyrwicz L, Saunders M, Hall M, Ng J, Prasad VB, Lautermilch N, Rashford M, Jin J, Formenti S, Glynne-Jones R. A phase Ib study of E7046 (AN0025) in combination with radiotherapy/chemoradiotherapy (RT/CRT) in preoperative treatment of rectal cancer. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz246.017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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42
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James DA, Ng J, Wei J, Vandemeulebroecke M. Multistate modeling and simulation of patient trajectories after allogeneic hematopoietic stem cell transplantation to inform drug development. Biom J 2019; 61:1303-1313. [PMID: 30295953 PMCID: PMC7074899 DOI: 10.1002/bimj.201700285] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2017] [Revised: 07/26/2018] [Accepted: 07/31/2018] [Indexed: 11/09/2022]
Abstract
We present a case study for developing clinical trial scenarios in a complex progressive disease with multiple events of interest. The idea is to first capture the course of the disease in a multistate Markov model, and then to simulate clinical trials from this model, including a variety of hypothesized drug effects. This case study focuses on the prevention of graft-versus-host disease (GvHD) after allogeneic hematopoietic stem cell transplantation (HSCT). The patient trajectory after HSCT is characterized by a complex interplay of various events of interest, and there is no established best method of measuring and/or analyzing treatment benefits. We characterized patient trajectories by means of multistate models that we fitted to a subset of the Center for International Blood and Marrow Transplant Research (CIBMTR) database. Events of interest included acute GvHD of grade III or IV, severe chronic GvHD, relapse of the underlying disease, and death. The transition probability matrix was estimated using the Aalen-Johansen estimator, and patient characteristics were identified that were associated with different transition rates. In a second step, clinical trial scenarios were simulated from the model assuming various drug effects on the background transition rates, and the operating characteristics of different endpoints and analysis strategies were compared in these scenarios. This helped devise a drug development strategy in GvHD prevention after allogeneic HSCT. More generally, multistate models provide a rich framework for exploring complex progressive diseases, and the availability of a corresponding simulation machinery provides great flexibility for clinical trial planning.
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Affiliation(s)
- David A. James
- Biostatistical Sciences and Pharmacometrics, Novartis Pharmaceuticals, East Hanover, NJ 07936, USA
| | - Jennifer Ng
- Biostatistical Sciences and Pharmacometrics, Novartis Pharmaceuticals, East Hanover, NJ 07936, USA
| | - Jiawei Wei
- Biostatistical Sciences and Pharmacometrics, China Novartis Institutes for Biomedical Research Co., Shanghai, China
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Fecteau R, Pennell R, Farjam R, Ng J. Initial Dosimetric Outcomes and Treatment Related Toxicities Using Stereotactic MRI-Guided Radiation Therapy (SMART) for Unresectable Pancreatic Cancer at a Single Institution. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.2008] [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: 11/25/2022]
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44
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Broad JB, Wu Z, Ng J, Arroll B, Connolly MJ, Jaung R, Oliver F, Bissett IP. 79USE OF BIG DATA TO GUIDE RESEARCH DIRECTIONS IN DIVERTICULAR DISEASE OF THE INTESTINES (DDI): PRIMARY CARE MANAGEMENT OF DDI IS COMMON, YET EVIDENCE IS LACKING AND GUIDELINES ARE SILENT. Age Ageing 2019. [DOI: 10.1093/ageing/afz060.01] [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: 11/12/2022] Open
Affiliation(s)
- J B Broad
- Department of Geriatric Medicine, University of Auckland, Takapuna, New Zealand
| | - Z Wu
- Department of Geriatric Medicine, University of Auckland, Takapuna, New Zealand
| | - J Ng
- Institute for Innovation and Improvement, Waitemata District Health Board, Takapuna, New Zealand
| | - B Arroll
- Department of General Practice and Primary Healthcare, School of Population Health, University of Auckland, Tamaki, New Zealand
| | - M J Connolly
- Department of Geriatric Medicine, University of Auckland, Takapuna, New Zealand
- Waitemata District Health Board, Takapuna, New Zealand
| | - R Jaung
- Department of Surgery, University of Auckland, Auckland, New Zealand
| | - F Oliver
- Department of Geriatric Medicine, University of Auckland, Takapuna, New Zealand
| | - I P Bissett
- Department of Surgery, University of Auckland, Auckland, New Zealand
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45
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Tang J, Heong V, Ng J, Low J, Tan D. Use of low-dose whole abdominal radiation therapy (LDWART) as a chemosensitizer in combination with weekly paclitaxel for platinum-resistant ovarian cancer: Safety analysis. Gynecol Oncol 2019. [DOI: 10.1016/j.ygyno.2019.04.404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Abstract
INTRODUCTION This study aimed to review the literature to establish whether there is a best treatment for low-risk ankle fractures in children. MATERIALS AND METHODS A systematic review and meta-analysis of trials was undertaken, which compared interventions for 'low-risk' ankle fractures in children. A meta-analysis was performed using a random effects model. RESULTS Four trials were identified reporting outcomes from 256 patients. All trials reported results using a device that permitted ankle motion compared with more rigid immobilisation. Overall risk of bias was low for three trials and high for one trial. Two trials assessed time to return to normal function. Patients treated in a splint or with a bandage recovering 6-7.5 days sooner than those treated with rigid immobilisation. One trial demonstrated that children returned to school sooner if treated in a bandage rather than in a cast. Two trials found a higher Activity Scale for Kids performance score at four weeks for children treated with splint compared with rigid immobilisation. There was no clear advantage to any device in patient satisfaction, quality of life or total costs. DISCUSSION There is no clear best treatment for these injuries. Studies had significant limitations and outcomes were heterogeneous, limiting meta-analysis. CONCLUSION There is a need for a definitive trial to establish the best treatment for ankle fractures and a core outcome set to ensure study findings are consistent and can be analysed in future meta-analyses.
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Affiliation(s)
- B A Marson
- Academic Orthopaedics, Trauma and Sports Medicine, University of Nottingham, Queen's Medical Centre, Nottingham, UK
| | - J Ng
- Department of Orthopaedics, Nottingham Children's Hospital, Queen's Medical Centre, Nottingham, UK
| | - Y Myint
- Academic Orthopaedics, Trauma and Sports Medicine, University of Nottingham, Queen's Medical Centre, Nottingham, UK
| | - Djc Grindlay
- Academic Orthopaedics, Trauma and Sports Medicine, University of Nottingham, Queen's Medical Centre, Nottingham, UK
| | - B J Ollivere
- Academic Orthopaedics, Trauma and Sports Medicine, University of Nottingham, Queen's Medical Centre, Nottingham, UK
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Stevens EM, Frank D, Codispoti M, Kypriotakis G, Cinciripini PM, Claiborne K, Deweese MM, Engelmann JM, Green CE, Karam-Hage M, Minnix JA, Ng J, Robinson JD, Tyndale RF, Vidrine DJ, Versace F. The Late Positive Potentials Evoked by Cigarette-Related and Emotional Images Show no Gender Differences in Smokers. Sci Rep 2019; 9:3240. [PMID: 30824792 PMCID: PMC6397300 DOI: 10.1038/s41598-019-39954-0] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2018] [Accepted: 02/05/2019] [Indexed: 12/02/2022] Open
Abstract
When trying to quit, women are less likely than men to achieve long-term smoking abstinence. Identifying the neuropsychological mechanisms underlying women's higher relapse vulnerability will help clinicians to develop effective tailored smoking cessation interventions. Here we used event-related potentials (ERPs), a direct measure of brain activity, to evaluate the extent to which neurophysiological responses to cigarette-related and other emotional stimuli differ between female and male smokers. Both women and men showed similar patterns of brain reactivity across all picture categories; pleasant and unpleasant images prompted larger Late Positive Potentials (LPPs, a robust measure of motivational relevance) than neutral images in both groups, and cigarette-related images prompted lower LPPs than high arousing emotional images in both groups. Unlike previous studies, there were no differences between male and female smokers with regard to LPP responses to cigarette-related images. This suggests that the LPP may not be ideally suited to discriminate neurophysiological gender differences or that there are simply no gender differences in the neurophysiological responses to cigarette-related stimuli. We collected ERPs from 222 non-nicotine-deprived smokers (101 women) while they watched a slideshow that included high and low emotionally arousing pleasant and unpleasant pictures, cigarette-related, and neutral pictures. We used the mean amplitude of the LPP to assess the affective significance that participants attributed to these pictures.
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Affiliation(s)
- Elise M Stevens
- Stephenson Cancer Center, Oklahoma Tobacco Research Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
| | - David Frank
- MD Anderson Cancer Center, University of Texas, Houston, TX, USA
| | | | | | | | | | - Menton M Deweese
- Vanderbilt University, Department of Teaching and Learning, Nashville, Tennessee, USA
| | | | - Charles E Green
- Department of Pediatrics, University of Texas, Houston, TX, USA
| | - Maher Karam-Hage
- MD Anderson Cancer Center, University of Texas, Houston, TX, USA
| | | | - Jennifer Ng
- MD Anderson Cancer Center, University of Texas, Houston, TX, USA
| | - Jason D Robinson
- MD Anderson Cancer Center, University of Texas, Houston, TX, USA
| | - Rachel F Tyndale
- Centre for Addiction and Mental Health, University of Toronto, Toronto, Ontario, Canada
| | - Damon J Vidrine
- Stephenson Cancer Center, Oklahoma Tobacco Research Center, University of Oklahoma Health Sciences Center, Oklahoma City, OK, USA
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Tönshoff B, Ettenger R, Dello Strologo L, Marks SD, Pape L, Tedesco-Silva H, Bjerre A, Christian M, Meier M, Martzloff ED, Rauer B, Ng J, Lopez P. Early conversion of pediatric kidney transplant patients to everolimus with reduced tacrolimus and steroid elimination: Results of a randomized trial. Am J Transplant 2019; 19:811-822. [PMID: 30125462 DOI: 10.1111/ajt.15081] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [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: 05/03/2018] [Revised: 07/25/2018] [Accepted: 08/12/2018] [Indexed: 01/25/2023]
Abstract
In a 12-month, multicenter, open-label study, 106 children were randomized at 4 to 6 weeks after kidney transplantation to switch to everolimus with reduced TAC (EVR/rTAC) and steroid elimination from month 5 posttransplant or to continue standard tacrolimus with mycophenolate mofetil (sTAC/MMF) and steroids. The cumulative incidence of a co-primary efficacy end point (biopsy-proven acute rejection [BPAR], graft loss, or death from randomization to month 12) was 10.3% with EVR/rTAC and 5.8% with sTAC/MMF (difference 4.4%; P = .417). BPAR occurred in 9.6% and 5.6% of patients, respectively. Patient and renal allograft survival were 100%. The co-primary end point of mean estimated glomerular filtration rate at month 12 was 76.2 mL/min/1.73 m2 with EVR/rTAC and 72.5 mL/min/1.73 m2 for sTAC/MMF (difference 3.8 mL/min/1.73m2 ; P = .49). One EVR/rTAC patient developed posttransplant lymphoproliferative disease. Longitudinal growth and sexual maturation were equivalent between groups. The randomized drug regimen was discontinued in 34.6% and 13% of patients in the EVR/rTAC and sTAC/MMF groups, respectively (P = .024), and discontinued due to adverse events/infections in 25.0% and 11.1% of patients (P = .062). In conclusion, early conversion of pediatric kidney transplant patients from TAC, MMF, and steroids to EVR/rTAC and steroid withdrawal maintains immunosuppressive efficacy and preserves renal function.
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Affiliation(s)
- Burkhard Tönshoff
- Department of Pediatrics I, University Children's Hospital Heidelberg, Heidelberg, Germany
| | - Robert Ettenger
- Division of Pediatric Nephrology, UCLA Mattel Children's Hospital, Los Angeles, CA, USA
| | - Luca Dello Strologo
- Nephrology Unit, Department of Pediatrics, Institute for Scientific Research, Bambino Gesù Children's Hospital, Rome, Italy
| | - Stephen D Marks
- Department of Paediatric Nephrology, Great Ormond Street Hospital for Children NHS Foundation Trust, London, UK
| | - Lars Pape
- Department of Pediatric Nephrology, Hannover Medical School, Hannover, Germany
| | | | - Anna Bjerre
- Division of Paediatric and Adolescent Medicine, Department of Pediatrics, Oslo University Hospital, Oslo, Norway
| | - Martin Christian
- Department of Paediatric Nephrology, Nottingham Children's Hospital, Nottingham, UK
| | | | | | | | - Jennifer Ng
- Biometrics and Statistical Science, Novartis Pharmaceuticals, East Hanover, NJ, USA
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49
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Mackintosh D, Islam MF, Ng J, Basham J. Immune checkpoint inhibitor use in antisynthetase syndrome. Asia Pac J Clin Oncol 2019; 15:266-269. [PMID: 30815986 DOI: 10.1111/ajco.13141] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2018] [Accepted: 02/12/2019] [Indexed: 11/26/2022]
Abstract
We report on the unique case of a patient with antisynthetase syndrome and metastatic non-small cell lung cancer undergoing therapy with the PD-1 checkpoint inhibitor, nivolumab. Despite adequate autoimmune disease control over a period of 12 months, the patient rapidly experienced a flare of interstitial lung disease following initial nivolumab administration, which ultimately proved fatal. The use of immune checkpoint inhibitors in patients with autoimmune disease is becoming more commonplace, however this is the first reported case of the use of these agents in a patient with antisynthetase syndrome. Additionally, the patient's initial clinical presentation with antisynthetase syndrome and simultaneous primary lung cancer, a rare association of which there are few case reports, makes this case interesting and unusual.
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Affiliation(s)
- David Mackintosh
- Department of Respiratory Medicine, Gold Coast University Hospital, Southport, QLD, Australia
| | - Mohammed F Islam
- Department of Medical Oncology, Gold Coast University Hospital, Southport, QLD, Australia
| | - Jennifer Ng
- Department of Rheumatology, Gold Coast University Hospital, Southport, QLD, Australia
| | - Jane Basham
- Department of Respiratory Medicine, Gold Coast University Hospital, Southport, QLD, Australia
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Abstract
Introduction: Load transfer across the radiocapitellar joint of the elbow is poorly understood both in the setting of the native radial head and following radial head arthroplasty. The purpose of this in vitro study was to determine the effects of radial neck length, arm position, and lateral collateral ligament (LCL) repair on radial load.Methods: A uniaxial load cell was implanted into the radial neck of 8 cadaveric specimens that were mounted on an in vitro motion-control simulator and tested (in dependent, varus, and valgus arm orientations) with the native radial neck length and then −4 to +4 mm lengths. Testing was performed with the LCL intact and after sectioning and repair.Results: There was no significant difference between the 2 LCL states (P = .82), and LCL state was not protective of proximal radius overlengthening. Radial loads increased with increasing radial length (P < .001).Discussion and Conclusion: Overlengthening the radial neck resulted in higher compression forces, and underlengthening produced tensile forces, demonstrating that restoration of correct radial length during radial head arthroplasty is important to restore physiologic loading. In the varus position, tensile loading occurred, which may explain clinical problems with ingrowth of uncemented radial head implant stems and dissociation of bipolar implants.
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Affiliation(s)
- Carolyn J Berkmortel
- Department of Mechanical and Materials Engineering, Western University, London, Ontario, Canada
| | | | - Jennifer Ng
- Department of Mechanical and Materials Engineering, Western University, London, Ontario, Canada
- Bioengineering Laboratory, Roth McFarlane Hand and Upper Limb Centre, Lawson Health Research Institute, St. Joseph’s Health Care, London, Ontario, Canada
| | - Louis M Ferreira
- Department of Mechanical and Materials Engineering, Western University, London, Ontario, Canada
- Bioengineering Laboratory, Roth McFarlane Hand and Upper Limb Centre, Lawson Health Research Institute, St. Joseph’s Health Care, London, Ontario, Canada
- Department of Surgery, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada
| | - George S Athwal
- Bioengineering Laboratory, Roth McFarlane Hand and Upper Limb Centre, Lawson Health Research Institute, St. Joseph’s Health Care, London, Ontario, Canada
- Department of Surgery, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada
| | - James A Johnson
- Department of Mechanical and Materials Engineering, Western University, London, Ontario, Canada
- Bioengineering Laboratory, Roth McFarlane Hand and Upper Limb Centre, Lawson Health Research Institute, St. Joseph’s Health Care, London, Ontario, Canada
- Department of Surgery, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada
| | - Graham JW King
- Bioengineering Laboratory, Roth McFarlane Hand and Upper Limb Centre, Lawson Health Research Institute, St. Joseph’s Health Care, London, Ontario, Canada
- Department of Surgery, Schulich School of Medicine and Dentistry, Western University, London, Ontario, Canada
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