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Ong SWX, Lee TC, Fowler RA, Mahar R, Pinto RL, Rishu A, Petrella L, Whiteway L, Cheng M, McDonald E, Johnstone J, Mertz D, Kandel C, Somayaji R, Davis JS, Tong SYC, Daneman N. Evaluating the impact of a SIMPlified LaYered consent process on recruitment of potential participants to the Staphylococcus aureus Network Adaptive Platform trial: study protocol for a multicentre pragmatic nested randomised clinical trial (SIMPLY-SNAP trial). BMJ Open 2024; 14:e083239. [PMID: 38238170 PMCID: PMC10806654 DOI: 10.1136/bmjopen-2023-083239] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/15/2023] [Accepted: 01/08/2024] [Indexed: 01/23/2024] Open
Abstract
INTRODUCTION Informed consent forms (ICFs) for randomised clinical trials (RCTs) can be onerous and lengthy. The process has the potential to overwhelm patients with information, leading them to miss elements of the study that are critical for an informed decision. Specifically, overly long and complicated ICFs have the potential to increase barriers to trial participation for patients with mild cognitive impairment, those who do not speak English as a first language or among those with lower medical literacy. In turn, this can influence trial recruitment, completion and external validity. METHODS AND ANALYSIS SIMPLY-SNAP is a pragmatic, multicentre, open-label, two-arm parallel-group superiority RCT, nested within a larger trial, the Staphylococcus aureus Network Adaptive Platform (SNAP) trial. We will randomise potentially eligible participants of the SNAP trial 1:1 to a full-length ICF or a SIMPlified LaYered (SIMPLY) consent process where basic information is summarised with embedded hyperlinks to supplemental information and videos. The primary outcome is recruitment into the SNAP trial. Secondary outcomes include patient understanding of the clinical trial, patient and research staff satisfaction with the consent process, and time taken for consent. As an exploratory outcome, we will also compare measures of diversity (eg, gender, ethnicity), according to the consent process randomised to. The planned sample size will be 346 participants. ETHICS AND DISSEMINATION The study has been approved by the ethics review board (Sunnybrook Health Sciences Research Ethics Board) at sites in Ontario. We will disseminate study results via the SNAP trial group and other collaborating clinical trial networks. TRIAL REGISTRATION NUMBER ClinicalTrials.gov Registry (NCT06168474; www. CLINICALTRIALS gov).
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Affiliation(s)
- Sean W X Ong
- Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada
- Faculty of Medicine, Densitry and Health Sciences, Univesrity of Melbourne, Melbourne, Victoria, Australia
- Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
| | - Todd C Lee
- Clinical Practice Assessment Unit, McGill University Health Centre, Montréal, Quebec, Canada
- Division of Infectious Diseases, McGill Univesrity Health Centre, Montréal, Quebec, Canada
| | - Robert A Fowler
- Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada
- Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
| | - Robert Mahar
- Centre for Epidemiology and Biostatistics, The University of Melbourne, Melbourne, Victoria, Australia
- Clinical Epidemiology and Biostatistics Unit, Murdoch Children's Research Institute, Parkville, Victoria, Australia
| | - Ruxandra L Pinto
- Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada
- Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
| | - Asgar Rishu
- Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
| | - Lina Petrella
- Clinical Practice Assessment Unit, McGill University Health Centre, Montréal, Quebec, Canada
| | - Lyn Whiteway
- Freelance Health Consumer Advocate, Adelaide, South Australia, Australia
| | - Matthew Cheng
- Division of Infectious Diseases, McGill Univesrity Health Centre, Montréal, Quebec, Canada
| | - Emily McDonald
- Clinical Practice Assessment Unit, McGill University Health Centre, Montréal, Quebec, Canada
- Division of General Internal Medicine, McGill University Health Centre, Montréal, Quebec, Canada
| | - Jennie Johnstone
- Division of Infectious Diseases, Sinai Health, Toronto, Ontario, Canada
| | - Dominik Mertz
- Division of Infectious Diseases, McMaster University, Hamilton, Ontario, Canada
| | - Christopher Kandel
- Michael Garron Hospital, Toronto East Health Network, Toronto, Ontario, Canada
| | - Ranjani Somayaji
- Division of Infectious Diseases, University of Calgary, Calgary, Alberta, Canada
| | - Joshua S Davis
- School of Medicine and Public Health, The University of Newcastle, Callaghan, New South Wales, Australia
- Global and Tropical Health Division, Menzies School of Health Research, Darwin, Northern Territory, Australia
- Department of Immunology and Infectious Diseases, John Hunter Hospital, Newcastle, New South Wales, Australia
| | - Steven Y C Tong
- Department of Infectious Diseases, University of Melbourne, Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
- Victorian Infectious Diseases Service, Royal Melbourne Hospital, Peter Doherty Institute for Infection and Immunity, Melbourne, Victoria, Australia
| | - Nick Daneman
- Institute of Health Policy, Management and Evaluation, University of Toronto, Toronto, Ontario, Canada
- Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
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Torres-Castanedo CG, Buchholz DB, Pham T, Zheng L, Cheng M, Dravid VP, Hersam MC, Bedzyk MJ. Ultrasmooth Epitaxial Pt Thin Films Grown by Pulsed Laser Deposition. ACS Appl Mater Interfaces 2024; 16:1921-1929. [PMID: 38123145 DOI: 10.1021/acsami.3c16065] [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] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Abstract
Platinum (Pt) thin films are useful in applications requiring high-conductivity electrodes with excellent thermal and chemical stability. Ultrasmooth and epitaxial Pt thin films with single-crystalline domains have the added benefit of providing ideal templates for the subsequent growth of heteroepitaxial structures. Here, we grow epitaxial Pt (111) electrodes (ca. 30 nm thick) on sapphire (α-Al2O3 (0001)) substrates with pulsed laser deposition. This versatile technique allows control of the growth process and fabrication of films with carefully tailored parameters. X-ray scattering, atomic-force microscopy, and electron microscopy provide structural characterization of the films. Various gaseous atmospheres and temperatures were explored to achieve epitaxial growth of films with low roughness. A two-step (500 °C/300 °C) growth process was developed, yielding films with improved epitaxy without compromising roughness. The resulting films possess ultrasmooth interfaces (<3 Å) and high electrical conductivity (6.9 × 106 S/m). Finally, Pt films were used as current collectors and templates to grow lithium manganese oxide (LiMn2O4 (111)) epitaxial thin films, a cathode material used in Li-ion batteries. Using a solid-state ionogel electrolyte, the films were highly stable when electrochemically cycled in the 3.5-4.3 V vs Li/Li+ range.
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Affiliation(s)
- Carlos G Torres-Castanedo
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - D Bruce Buchholz
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Thang Pham
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Liyang Zheng
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Matthew Cheng
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Vinayak P Dravid
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
- Northwestern University Atomic and Nanoscale Characterization Experimental Center (NUANCE), Northwestern University,Evanston, Illinois 60208, United States
| | - Mark C Hersam
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
- Department of Electrical and Computer Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Michael J Bedzyk
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
- Department of Physics and Astronomy, Northwestern University, Evanston, Illinois 60208, United States
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Aguillard DP, Albahri T, Allspach D, Anisenkov A, Badgley K, Baeßler S, Bailey I, Bailey L, Baranov VA, Barlas-Yucel E, Barrett T, Barzi E, Bedeschi F, Berz M, Bhattacharya M, Binney HP, Bloom P, Bono J, Bottalico E, Bowcock T, Braun S, Bressler M, Cantatore G, Carey RM, Casey BCK, Cauz D, Chakraborty R, Chapelain A, Chappa S, Charity S, Chen C, Cheng M, Chislett R, Chu Z, Chupp TE, Claessens C, Convery ME, Corrodi S, Cotrozzi L, Crnkovic JD, Dabagov S, Debevec PT, Di Falco S, Di Sciascio G, Drendel B, Driutti A, Duginov VN, Eads M, Edmonds A, Esquivel J, Farooq M, Fatemi R, Ferrari C, Fertl M, Fienberg AT, Fioretti A, Flay D, Foster SB, Friedsam H, Froemming NS, Gabbanini C, Gaines I, Galati MD, Ganguly S, Garcia A, George J, Gibbons LK, Gioiosa A, Giovanetti KL, Girotti P, Gohn W, Goodenough L, Gorringe T, Grange J, Grant S, Gray F, Haciomeroglu S, Halewood-Leagas T, Hampai D, Han F, Hempstead J, Hertzog DW, Hesketh G, Hess E, Hibbert A, Hodge Z, Hong KW, Hong R, Hu T, Hu Y, Iacovacci M, Incagli M, Kammel P, Kargiantoulakis M, Karuza M, Kaspar J, Kawall D, Kelton L, Keshavarzi A, Kessler DS, Khaw KS, Khechadoorian Z, Khomutov NV, Kiburg B, Kiburg M, Kim O, Kinnaird N, Kraegeloh E, Krylov VA, Kuchinskiy NA, Labe KR, LaBounty J, Lancaster M, Lee S, Li B, Li D, Li L, Logashenko I, Lorente Campos A, Lu Z, Lucà A, Lukicov G, Lusiani A, Lyon AL, MacCoy B, Madrak R, Makino K, Mastroianni S, Miller JP, Miozzi S, Mitra B, Morgan JP, Morse WM, Mott J, Nath A, Ng JK, Nguyen H, Oksuzian Y, Omarov Z, Osofsky R, Park S, Pauletta G, Piacentino GM, Pilato RN, Pitts KT, Plaster B, Počanić D, Pohlman N, Polly CC, Price J, Quinn B, Qureshi MUH, Ramachandran S, Ramberg E, Reimann R, Roberts BL, Rubin DL, Santi L, Schlesier C, Schreckenberger A, Semertzidis YK, Shemyakin D, Sorbara M, Stöckinger D, Stapleton J, Still D, Stoughton C, Stratakis D, Swanson HE, Sweetmore G, Sweigart DA, Syphers MJ, Tarazona DA, Teubner T, Tewsley-Booth AE, Tishchenko V, Tran NH, Turner W, Valetov E, Vasilkova D, Venanzoni G, Volnykh VP, Walton T, Weisskopf A, Welty-Rieger L, Winter P, Wu Y, Yu B, Yucel M, Zeng Y, Zhang C. Measurement of the Positive Muon Anomalous Magnetic Moment to 0.20 ppm. Phys Rev Lett 2023; 131:161802. [PMID: 37925710 DOI: 10.1103/physrevlett.131.161802] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/10/2023] [Accepted: 09/05/2023] [Indexed: 11/07/2023]
Abstract
We present a new measurement of the positive muon magnetic anomaly, a_{μ}≡(g_{μ}-2)/2, from the Fermilab Muon g-2 Experiment using data collected in 2019 and 2020. We have analyzed more than 4 times the number of positrons from muon decay than in our previous result from 2018 data. The systematic error is reduced by more than a factor of 2 due to better running conditions, a more stable beam, and improved knowledge of the magnetic field weighted by the muon distribution, ω[over ˜]_{p}^{'}, and of the anomalous precession frequency corrected for beam dynamics effects, ω_{a}. From the ratio ω_{a}/ω[over ˜]_{p}^{'}, together with precisely determined external parameters, we determine a_{μ}=116 592 057(25)×10^{-11} (0.21 ppm). Combining this result with our previous result from the 2018 data, we obtain a_{μ}(FNAL)=116 592 055(24)×10^{-11} (0.20 ppm). The new experimental world average is a_{μ}(exp)=116 592 059(22)×10^{-11} (0.19 ppm), which represents a factor of 2 improvement in precision.
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Affiliation(s)
| | - T Albahri
- University of Liverpool, Liverpool, United Kingdom
| | - D Allspach
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - A Anisenkov
- Budker Institute of Nuclear Physics, Novosibirsk, Russia
| | - K Badgley
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - S Baeßler
- University of Virginia, Charlottesville, Virginia, USA
| | - I Bailey
- Lancaster University, Lancaster, United Kingdom
| | - L Bailey
- Department of Physics and Astronomy, University College London, London, United Kingdom
| | - V A Baranov
- Joint Institute for Nuclear Research, Dubna, Russia
| | - E Barlas-Yucel
- University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | - T Barrett
- Cornell University, Ithaca, New York, USA
| | - E Barzi
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | | | - M Berz
- Michigan State University, East Lansing, Michigan, USA
| | - M Bhattacharya
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - H P Binney
- University of Washington, Seattle, Washington, USA
| | - P Bloom
- North Central College, Naperville, Illinois, USA
| | - J Bono
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - E Bottalico
- University of Liverpool, Liverpool, United Kingdom
| | - T Bowcock
- University of Liverpool, Liverpool, United Kingdom
| | - S Braun
- University of Washington, Seattle, Washington, USA
| | - M Bressler
- Department of Physics, University of Massachusetts, Amherst, Massachusetts, USA
| | | | - R M Carey
- Boston University, Boston, Massachusetts, USA
| | - B C K Casey
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - D Cauz
- Università di Udine, Udine, Italy
| | | | | | - S Chappa
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - S Charity
- University of Liverpool, Liverpool, United Kingdom
| | - C Chen
- School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China
- Tsung-Dao Lee Institute, Shanghai Jiao Tong University, Shanghai, China
| | - M Cheng
- University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | - R Chislett
- Department of Physics and Astronomy, University College London, London, United Kingdom
| | - Z Chu
- School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China
| | - T E Chupp
- University of Michigan, Ann Arbor, Michigan, USA
| | - C Claessens
- University of Washington, Seattle, Washington, USA
| | - M E Convery
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - S Corrodi
- Argonne National Laboratory, Lemont, Illinois, USA
| | | | - J D Crnkovic
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - S Dabagov
- INFN, Laboratori Nazionali di Frascati, Frascati, Italy
| | - P T Debevec
- University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | | | | | - B Drendel
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | | | - V N Duginov
- Joint Institute for Nuclear Research, Dubna, Russia
| | - M Eads
- Northern Illinois University, DeKalb, Illinois, USA
| | - A Edmonds
- Boston University, Boston, Massachusetts, USA
| | - J Esquivel
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - M Farooq
- University of Michigan, Ann Arbor, Michigan, USA
| | - R Fatemi
- University of Kentucky, Lexington, Kentucky, USA
| | | | - M Fertl
- Institute of Physics and Cluster of Excellence PRISMA+, Johannes Gutenberg University Mainz, Mainz, Germany
| | - A T Fienberg
- University of Washington, Seattle, Washington, USA
| | | | - D Flay
- Department of Physics, University of Massachusetts, Amherst, Massachusetts, USA
| | - S B Foster
- Boston University, Boston, Massachusetts, USA
| | - H Friedsam
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | | | | | - I Gaines
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | | | - S Ganguly
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - A Garcia
- University of Washington, Seattle, Washington, USA
| | - J George
- Department of Physics, University of Massachusetts, Amherst, Massachusetts, USA
| | | | - A Gioiosa
- Università del Molise, Campobasso, Italy
| | - K L Giovanetti
- Department of Physics and Astronomy, James Madison University, Harrisonburg, Virginia, USA
| | | | - W Gohn
- University of Kentucky, Lexington, Kentucky, USA
| | - L Goodenough
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - T Gorringe
- University of Kentucky, Lexington, Kentucky, USA
| | - J Grange
- University of Michigan, Ann Arbor, Michigan, USA
| | - S Grant
- Argonne National Laboratory, Lemont, Illinois, USA
- Department of Physics and Astronomy, University College London, London, United Kingdom
| | - F Gray
- Regis University, Denver, Colorado, USA
| | - S Haciomeroglu
- Center for Axion and Precision Physics (CAPP)/Institute for Basic Science (IBS), Daejeon, Republic of Korea
| | | | - D Hampai
- INFN, Laboratori Nazionali di Frascati, Frascati, Italy
| | - F Han
- University of Kentucky, Lexington, Kentucky, USA
| | - J Hempstead
- University of Washington, Seattle, Washington, USA
| | - D W Hertzog
- University of Washington, Seattle, Washington, USA
| | - G Hesketh
- Department of Physics and Astronomy, University College London, London, United Kingdom
| | - E Hess
- INFN, Sezione di Pisa, Pisa, Italy
| | - A Hibbert
- University of Liverpool, Liverpool, United Kingdom
| | - Z Hodge
- University of Washington, Seattle, Washington, USA
| | - K W Hong
- University of Virginia, Charlottesville, Virginia, USA
| | - R Hong
- Argonne National Laboratory, Lemont, Illinois, USA
- University of Kentucky, Lexington, Kentucky, USA
| | - T Hu
- School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China
- Tsung-Dao Lee Institute, Shanghai Jiao Tong University, Shanghai, China
| | - Y Hu
- School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China
| | | | | | - P Kammel
- University of Washington, Seattle, Washington, USA
| | | | - M Karuza
- INFN, Sezione di Trieste, Trieste, Italy
| | - J Kaspar
- University of Washington, Seattle, Washington, USA
| | - D Kawall
- Department of Physics, University of Massachusetts, Amherst, Massachusetts, USA
| | - L Kelton
- University of Kentucky, Lexington, Kentucky, USA
| | - A Keshavarzi
- Department of Physics and Astronomy, University of Manchester, Manchester, United Kingdom
| | - D S Kessler
- Department of Physics, University of Massachusetts, Amherst, Massachusetts, USA
| | - K S Khaw
- School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China
- Tsung-Dao Lee Institute, Shanghai Jiao Tong University, Shanghai, China
| | | | - N V Khomutov
- Joint Institute for Nuclear Research, Dubna, Russia
| | - B Kiburg
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - M Kiburg
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
- North Central College, Naperville, Illinois, USA
| | - O Kim
- University of Mississippi, University, Mississippi, USA
| | - N Kinnaird
- Boston University, Boston, Massachusetts, USA
| | - E Kraegeloh
- University of Michigan, Ann Arbor, Michigan, USA
| | - V A Krylov
- Joint Institute for Nuclear Research, Dubna, Russia
| | | | - K R Labe
- Cornell University, Ithaca, New York, USA
| | - J LaBounty
- University of Washington, Seattle, Washington, USA
| | - M Lancaster
- Department of Physics and Astronomy, University of Manchester, Manchester, United Kingdom
| | - S Lee
- Center for Axion and Precision Physics (CAPP)/Institute for Basic Science (IBS), Daejeon, Republic of Korea
| | - B Li
- Argonne National Laboratory, Lemont, Illinois, USA
- School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China
| | - D Li
- School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China
| | - L Li
- School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China
| | - I Logashenko
- Budker Institute of Nuclear Physics, Novosibirsk, Russia
| | | | - Z Lu
- School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China
| | - A Lucà
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - G Lukicov
- Department of Physics and Astronomy, University College London, London, United Kingdom
| | | | - A L Lyon
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - B MacCoy
- University of Washington, Seattle, Washington, USA
| | - R Madrak
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - K Makino
- Michigan State University, East Lansing, Michigan, USA
| | | | - J P Miller
- Boston University, Boston, Massachusetts, USA
| | - S Miozzi
- INFN, Sezione di Roma Tor Vergata, Rome, Italy
| | - B Mitra
- University of Mississippi, University, Mississippi, USA
| | - J P Morgan
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - W M Morse
- Brookhaven National Laboratory, Upton, New York, USA
| | - J Mott
- Boston University, Boston, Massachusetts, USA
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - A Nath
- INFN, Sezione di Napoli, Naples, Italy
| | - J K Ng
- School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China
- Tsung-Dao Lee Institute, Shanghai Jiao Tong University, Shanghai, China
| | - H Nguyen
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - Y Oksuzian
- Argonne National Laboratory, Lemont, Illinois, USA
| | - Z Omarov
- Center for Axion and Precision Physics (CAPP)/Institute for Basic Science (IBS), Daejeon, Republic of Korea
- Department of Physics, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea
| | - R Osofsky
- University of Washington, Seattle, Washington, USA
| | - S Park
- Center for Axion and Precision Physics (CAPP)/Institute for Basic Science (IBS), Daejeon, Republic of Korea
| | | | | | - R N Pilato
- University of Liverpool, Liverpool, United Kingdom
| | - K T Pitts
- University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | - B Plaster
- University of Kentucky, Lexington, Kentucky, USA
| | - D Počanić
- University of Virginia, Charlottesville, Virginia, USA
| | - N Pohlman
- Northern Illinois University, DeKalb, Illinois, USA
| | - C C Polly
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - J Price
- University of Liverpool, Liverpool, United Kingdom
| | - B Quinn
- University of Mississippi, University, Mississippi, USA
| | - M U H Qureshi
- Institute of Physics and Cluster of Excellence PRISMA+, Johannes Gutenberg University Mainz, Mainz, Germany
| | | | - E Ramberg
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - R Reimann
- Institute of Physics and Cluster of Excellence PRISMA+, Johannes Gutenberg University Mainz, Mainz, Germany
| | - B L Roberts
- Boston University, Boston, Massachusetts, USA
| | - D L Rubin
- Cornell University, Ithaca, New York, USA
| | - L Santi
- Università di Udine, Udine, Italy
| | - C Schlesier
- University of Illinois at Urbana-Champaign, Urbana, Illinois, USA
| | | | - Y K Semertzidis
- Center for Axion and Precision Physics (CAPP)/Institute for Basic Science (IBS), Daejeon, Republic of Korea
- Department of Physics, Korea Advanced Institute of Science and Technology (KAIST), Daejeon, Republic of Korea
| | - D Shemyakin
- Budker Institute of Nuclear Physics, Novosibirsk, Russia
| | - M Sorbara
- INFN, Sezione di Roma Tor Vergata, Rome, Italy
| | - D Stöckinger
- Institut für Kern- und Teilchenphysik, Technische Universität Dresden, Dresden, Germany
| | - J Stapleton
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - D Still
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - C Stoughton
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - D Stratakis
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - H E Swanson
- University of Washington, Seattle, Washington, USA
| | - G Sweetmore
- Department of Physics and Astronomy, University of Manchester, Manchester, United Kingdom
| | | | - M J Syphers
- Northern Illinois University, DeKalb, Illinois, USA
| | - D A Tarazona
- Cornell University, Ithaca, New York, USA
- Michigan State University, East Lansing, Michigan, USA
- University of Liverpool, Liverpool, United Kingdom
| | - T Teubner
- University of Liverpool, Liverpool, United Kingdom
| | - A E Tewsley-Booth
- University of Kentucky, Lexington, Kentucky, USA
- University of Michigan, Ann Arbor, Michigan, USA
| | - V Tishchenko
- Brookhaven National Laboratory, Upton, New York, USA
| | - N H Tran
- Boston University, Boston, Massachusetts, USA
| | - W Turner
- University of Liverpool, Liverpool, United Kingdom
| | - E Valetov
- Michigan State University, East Lansing, Michigan, USA
| | - D Vasilkova
- Department of Physics and Astronomy, University College London, London, United Kingdom
- University of Liverpool, Liverpool, United Kingdom
| | - G Venanzoni
- University of Liverpool, Liverpool, United Kingdom
| | - V P Volnykh
- Joint Institute for Nuclear Research, Dubna, Russia
| | - T Walton
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - A Weisskopf
- Michigan State University, East Lansing, Michigan, USA
| | - L Welty-Rieger
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - P Winter
- Argonne National Laboratory, Lemont, Illinois, USA
| | - Y Wu
- Argonne National Laboratory, Lemont, Illinois, USA
| | - B Yu
- University of Mississippi, University, Mississippi, USA
| | - M Yucel
- Fermi National Accelerator Laboratory, Batavia, Illinois, USA
| | - Y Zeng
- School of Physics and Astronomy, Shanghai Jiao Tong University, Shanghai, China
- Tsung-Dao Lee Institute, Shanghai Jiao Tong University, Shanghai, China
| | - C Zhang
- University of Liverpool, Liverpool, United Kingdom
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Cheng M, Long X, Guo J, Li C. The Efficacy of Silver Sulfadiazine (SSD) Dressing Combined with Recombinant Human Epidermal Growth Factor in the Treatment of Third-Grade Radiation Dermatitis: A Randomized Controlled Study. Int J Radiat Oncol Biol Phys 2023; 117:e372-e373. [PMID: 37785269 DOI: 10.1016/j.ijrobp.2023.06.2474] [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: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Radiation dermatitis is the most common complication of radiation therapy for oncology. Studies have shown that approximately 47% patients develop a second-degree or higher radiation skin reaction after radiotherapy. Although skin products that form a surface barrier such as dressings are standard of care in wound care management, they have been poorly reported in the management of radiation dermatitis. Many systemic and topical treatments have been investigated for the prevention and management of radiation dermatitis, however, how to improve this process is still needed. We hypothesize that silver sulfadiazine (SSD) dressings combined with recombinant human epidermal growth factor (EGF) may accelerate wound healing and reduce painful dressing changes. MATERIALS/METHODS Sixty patients who received radiotherapy and developed tertiary radiation dermatitis in our department from January 2019 to December 2022 were selected for the study, and were randomly divided into a control group (n = 30) and an observation group (n = 30) in a 1:1 ratio according to the inclusion criteria, both groups were first aseptically cleared with 0.9% sodium chloride injection and uniformly sprayed with recombinant human epidermal growth factor solution. In the control group, a foam dressing was used, while in the observation group, a silver sulfadiazine dressing was used to cover the wound, and in both groups, a double layer of sterile gauze was fixed on the outer layer. Wound healing time and pain level, and secondary observation endpoints were patient quality of life scores (SF-36, including physical function, psychological function, social function, daily activities, all scored on a percentage scale), patient satisfaction, and skin temperature. RESULTS The results of the control group vs. the observation group showed: wound healing time (d) of (12±5.08) vs. (8.57±3.11), p = 0.03; NRS pain score of (2.98±1.65) vs. (2.08±1.66), p = 0.04; quality of life assessment showed: psychological aspects (88.25±8.12) vs. 96.34±6.18), p = 0.0413; physical aspects (85.78±5.71) vs. (94.48±4.09), p = 0.0227; environmental aspects (90.15±3.56) vs. (98.09±1.21), p = 0.0137; satisfaction rate 28 (93.33%) vs. 30 (100.00%) , dissatisfaction rate was 2 (6.67%) vs. 0 (0.00%), p = 0.0086; skin temperature (32.08±0.79) vs. (32.14±0.43), no statistically significant difference p>0.05. CONCLUSION This randomized preliminary study showed that silver sulfadiazine dressing combined with recombinant human epidermal growth factor was significantly more effective than foam dressing in the treatment of tertiary radiation dermatitis, accelerating wound healing time, reducing patient painful dressing changes, and improving patient satisfaction.
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Affiliation(s)
- M Cheng
- Department of Radiation Oncology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - X Long
- Department of Radiation Oncology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - J Guo
- Department of Radiation Oncology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
| | - C Li
- Department of Radiation Oncology, Xijing Hospital, Fourth Military Medical University, Xi'an, China
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Guo J, Cheng M, Li C, Long X, Zang J. The Effect of Nursing Intervention Based on HFMEA Model on the Prevention of Radiation Dermatitis: A Randomized Controlled Study. Int J Radiat Oncol Biol Phys 2023; 117:e387-e388. [PMID: 37785304 DOI: 10.1016/j.ijrobp.2023.06.2508] [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: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Radiationdermatitis is one of the most common complications in patients received radiotherapy. Previous studies shown that incidence of radiation induced dermatitis (RD) is 95%. HFMEA (Healthcare Failure Mode and Effect Analysis) is a new model of nursing management. Many studies reported that HFMEA could reduce incidence of complications and adverse events, and significantly improve patient satisfaction. MATERIALS/METHODS From March 2023 to October 2022, patients received radiotherapy in our center were recruited in this study. Participants were randomly divided into control group (N = 60) and observation group (N = 60) in a ratio of 1:1. Patients in the control group were given routine skin care, health education before radiotherapy and skin care manual during radiotherapy. Based on the standard care, a HFMEA-based nursing intervention was adopted in the observation group by the following methods: Set up HFMEA care team. HFMEA team is composed of head nurses, wound specialist nurses, psychotherapists, etc. The members of the group searched the literature, case analysis and brainstorming to find out the potential failure reasons in every process of nursing radiotherapy patients in the past. Implementation of targeted measures to improve the corresponding: all patients with radiation dermatitis baseline assessment, focus on high-risk patients to shift, regular guidance medication, responsible nurses check the management of patients' skin every day to strengthen the attention of medical staff and patients' family members to radiation dermatitis. The degree of skin injury, pain and psychological status were compared between the two groups at the end of radiotherapy. RESULTS A total of 120 patients were enrolled in this study. Grade 1 RD was the most common in the observation group at the end of radiotherapy, and Grade 2 and 3 skin RD were less in the observation group than in the control group. There was not significant difference in the scores of SAS and SDS between the two groups before and after nursing (P > 0.05). In the observation group, the SAS scores (44.10±11.25 vs. 32.29 ± 7.72, P = 0.016) and SDS scores (40.98 ± 9.12 vs. 30.11 ± 5.23, P = 0.013) were significantly higher than the control group after nursing(P<0.05). The scores of SAS and SDS in the Observation Group were significantly lower than those in the control group. The scores of SAS in the Observation Group VS the control group were 32.29 ± 7.72 VS 39.09 ± 9.37 after nursing, SDS scores of Observation Group VS control group (30.11 ± 5.23 VS 38.76 ± 7.52, P<0.05). The visual analogue scale (Vas) score in the observation group was significantly lower than that in the control group (2.37 ± 0.45 VS 4.02 ± 0.53, P & Lt; 0.001), and the satisfaction degree of patients in the observation group was significantly higher than that in the control group (96.67% VS 80%, p = 0.004). CONCLUSION HFMEA model could effectively reduce incidence of RD, eliminate negative emotion, relieve pain and improve nursing satisfaction.
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Affiliation(s)
- J Guo
- Department of Radiation Oncology, Xijing Hospital, Fourth Military Medical University., Xi'an, China
| | - M Cheng
- Department of Radiation Oncology, Xijing Hospital, Fourth Military Medical University., Xi'an, China
| | - C Li
- Department of Radiation Oncology, Xijing Hospital, Fourth Military Medical University., Xi'an, China
| | - X Long
- Department of Radiation Oncology, Xijing Hospital, Fourth Military Medical University., Xi'an, China
| | - J Zang
- Department of Radiation Oncology, Xijing Hospital, Air Force Medical University, Xi'an, China
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Yanagi R, Zhao T, Cheng M, Liu B, Su H, He C, Heinlein J, Mukhopadhyay S, Tan H, Solanki D, Hu S. Photocatalytic CO 2 Reduction with Dissolved Carbonates and Near-Zero CO 2(aq) by Employing Long-Range Proton Transport. J Am Chem Soc 2023. [PMID: 37399530 DOI: 10.1021/jacs.3c03281] [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: 07/05/2023]
Abstract
Photocatalytic CO2 reduction (CO2R) in ∼0 mM CO2(aq) concentration is challenging but is relevant for capturing CO2 and achieving a circular carbon economy. Despite recent advances, the interplay between the CO2 catalytic reduction and the oxidative redox processes that are arranged on photocatalyst surfaces with nanometer-scale distances is less studied. Specifically, mechanistic investigation on interdependent processes, including CO2 adsorption, charge separation, long-range chemical transport (∼100 nm distance), and bicarbonate buffer speciation, involved in photocatalysis is urgently needed. Photocatalytic CO2R in ∼0 mM CO2(aq), which has important applications in integrated carbon capture and utilization (CCU), has rarely been studied. Using 0.1 M KHCO3 (aq) of pH 7 but without continuously bubbling CO2, we achieved ∼0.1% solar-to-fuel conversion efficiency for CO production using Ag@CrOx nanoparticles that are supported on a coating-protected GaInP2 photocatalytic panel. CO is produced at ∼100% selectivity with no detectable H2, even with copious protons co-generated nearby. CO2 flux to the Ag@CrOx CO2R sites enhances CO2 adsorption, probed by in situ Raman spectroscopy. CO is produced with local protonation of dissolved inorganic carbon species in a pH as high as 11.5 when using fast electron donors such as ethanol. Isotopic labeling using KH13CO3 was used to confirm the origin of CO from the bicarbonate solution. We then employed COMSOL Multiphysics modeling to simulate the spatial and temporal pH variation and the local concentrations of bicarbonates and CO2(aq). We found that light-driven CO2R and CO2 reactive transport are mutually dependent, which is important for further understanding and manipulating CO2R activity and selectivity. This study enables direct bicarbonate utilization as the source of CO2, thereby achieving CO2 capture and conversion without purifying and feeding gaseous CO2.
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Affiliation(s)
- Rito Yanagi
- Department of Chemical and Environmental Engineering, School of Engineering and Applied Sciences, Yale University, New Haven, Connecticut 06520, United States
- Energy Sciences Institute, Yale West Campus, West Haven, Connecticut 06516, United States
| | - Tianshuo Zhao
- Department of Chemical and Environmental Engineering, School of Engineering and Applied Sciences, Yale University, New Haven, Connecticut 06520, United States
- Energy Sciences Institute, Yale West Campus, West Haven, Connecticut 06516, United States
| | - Matthew Cheng
- Department of Chemical and Environmental Engineering, School of Engineering and Applied Sciences, Yale University, New Haven, Connecticut 06520, United States
- Energy Sciences Institute, Yale West Campus, West Haven, Connecticut 06516, United States
| | - Bin Liu
- Department of Chemical and Environmental Engineering, School of Engineering and Applied Sciences, Yale University, New Haven, Connecticut 06520, United States
- Energy Sciences Institute, Yale West Campus, West Haven, Connecticut 06516, United States
| | - Haoqing Su
- Department of Chemical and Environmental Engineering, School of Engineering and Applied Sciences, Yale University, New Haven, Connecticut 06520, United States
- Energy Sciences Institute, Yale West Campus, West Haven, Connecticut 06516, United States
| | - Chengxing He
- Department of Chemical and Environmental Engineering, School of Engineering and Applied Sciences, Yale University, New Haven, Connecticut 06520, United States
- Energy Sciences Institute, Yale West Campus, West Haven, Connecticut 06516, United States
| | - Jake Heinlein
- Department of Chemical and Environmental Engineering, School of Engineering and Applied Sciences, Yale University, New Haven, Connecticut 06520, United States
- Energy Sciences Institute, Yale West Campus, West Haven, Connecticut 06516, United States
| | - Shomeek Mukhopadhyay
- Department of Chemical and Environmental Engineering, School of Engineering and Applied Sciences, Yale University, New Haven, Connecticut 06520, United States
| | - Haiyan Tan
- Institute of Materials Science, University of Connecticut, Storrs, Connecticut 06269, United States
| | - Devan Solanki
- Department of Chemical and Environmental Engineering, School of Engineering and Applied Sciences, Yale University, New Haven, Connecticut 06520, United States
- Energy Sciences Institute, Yale West Campus, West Haven, Connecticut 06516, United States
| | - Shu Hu
- Department of Chemical and Environmental Engineering, School of Engineering and Applied Sciences, Yale University, New Haven, Connecticut 06520, United States
- Energy Sciences Institute, Yale West Campus, West Haven, Connecticut 06516, United States
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Wang Z, Zeng L, Zhu T, Chen H, Chen B, Kubicki DJ, Balvanz A, Li C, Maxwell A, Ugur E, Dos Reis R, Cheng M, Yang G, Subedi B, Luo D, Hu J, Wang J, Teale S, Mahesh S, Wang S, Hu S, Jung E, Wei M, Park SM, Grater L, Aydin E, Song Z, Podraza NJ, Lu ZH, Huang J, Dravid VP, De Wolf S, Yan Y, Grätzel M, Kanatzidis M, Sargent E. Suppressed phase segregation for triple-junction perovskite solar cells. Nature 2023:10.1038/s41586-023-06006-7. [PMID: 36977463 DOI: 10.1038/s41586-023-06006-7] [Citation(s) in RCA: 15] [Impact Index Per Article: 15.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2022] [Accepted: 03/23/2023] [Indexed: 03/30/2023]
Abstract
The tunable band gaps and facile fabrication of perovskites make them attractive for multi-junction photovoltaics1,2. However, light-induced phase segregation limits their efficiency and stability3-5: this occurs in wide band gap (> 1.65 eV) I/Br mixed perovskite absorbers, and becomes even more acute in the top cells of triple-junction solar photovoltaics that requires a fully 2.0 eV band gap absorber2,6. We report herein that lattice distortion in I/Br mixed perovskites is correlated with the suppression of phase segregation, generating an increased ion migration energy barrier arising from the decreased average interatomic distance between A-site cation and iodide. Using a ~2.0 eV Rb/Cs mixed-cation inorganic perovskite with large lattice distortion in the top subcell, we fabricated all-perovskite triple-junction solar cells and achieved an efficiency of 24.3% (23.3% certified quasi-steady-state efficiency) with an open-circuit voltage of 3.21 V. This is, to our knowledge, the first reported certified efficiency for perovskite-based triple-junction solar cells. The triple-junction devices retain 80% of their initial efficiency following 420 hours of operation at the maximum power point.
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Affiliation(s)
- Zaiwei Wang
- Department of Electrical and Computer Engineering, University of Toronto, 35 St George Street, Toronto, Ontario, Canada
| | - Lewei Zeng
- Department of Electrical and Computer Engineering, University of Toronto, 35 St George Street, Toronto, Ontario, Canada
| | - Tong Zhu
- Department of Electrical and Computer Engineering, University of Toronto, 35 St George Street, Toronto, Ontario, Canada
| | - Hao Chen
- Department of Electrical and Computer Engineering, University of Toronto, 35 St George Street, Toronto, Ontario, Canada
| | - Bin Chen
- Department of Electrical and Computer Engineering, University of Toronto, 35 St George Street, Toronto, Ontario, Canada
- Department of Chemistry, Northwestern University, Evanston, Illinois, USA
| | - Dominik J Kubicki
- Department of Physics, University of Warwick, Coventry, United Kingdom
| | - Adam Balvanz
- Department of Chemistry, Northwestern University, Evanston, Illinois, USA
| | - Chongwen Li
- Department of Electrical and Computer Engineering, University of Toronto, 35 St George Street, Toronto, Ontario, Canada
- Department of Physics and Astronomy and Wright Center for Photovoltaics Innovation and Commercialization, The University of Toledo, Toledo, Ohio, USA
| | - Aidan Maxwell
- Department of Electrical and Computer Engineering, University of Toronto, 35 St George Street, Toronto, Ontario, Canada
| | - Esma Ugur
- KAUST Solar Center (KSC), Physical Sciences and Engineering Division (PSE), King Abdullah University of Science and Technology (KAUST), Thuwal, Kingdom of Saudi Arabia
| | - Roberto Dos Reis
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois, USA
| | - Matthew Cheng
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois, USA
| | - Guang Yang
- Department of Applied Physical Sciences, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Biwas Subedi
- Department of Physics and Astronomy and Wright Center for Photovoltaics Innovation and Commercialization, The University of Toledo, Toledo, Ohio, USA
| | - Deying Luo
- Department of Materials Science and Engineering, University of Toronto, Toronto, Ontario, Canada
| | - Juntao Hu
- Department of Physics, Center for Optoelectronics Engineering Research, Yunnan University, Kunming, China
| | - Junke Wang
- Department of Electrical and Computer Engineering, University of Toronto, 35 St George Street, Toronto, Ontario, Canada
| | - Sam Teale
- Department of Electrical and Computer Engineering, University of Toronto, 35 St George Street, Toronto, Ontario, Canada
| | - Suhas Mahesh
- Department of Electrical and Computer Engineering, University of Toronto, 35 St George Street, Toronto, Ontario, Canada
| | - Sasa Wang
- Department of Electrical and Computer Engineering, University of Toronto, 35 St George Street, Toronto, Ontario, Canada
| | - Shuangyan Hu
- Department of Electrical and Computer Engineering, University of Toronto, 35 St George Street, Toronto, Ontario, Canada
| | - Euidae Jung
- Department of Electrical and Computer Engineering, University of Toronto, 35 St George Street, Toronto, Ontario, Canada
| | - Mingyang Wei
- Department of Electrical and Computer Engineering, University of Toronto, 35 St George Street, Toronto, Ontario, Canada
- Laboratory of Photonics and Interfaces, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fedérale de Lausanne (EPFL), Lausanne, Switzerland
| | - So Min Park
- Department of Electrical and Computer Engineering, University of Toronto, 35 St George Street, Toronto, Ontario, Canada
| | - Luke Grater
- Department of Electrical and Computer Engineering, University of Toronto, 35 St George Street, Toronto, Ontario, Canada
| | - Erkan Aydin
- KAUST Solar Center (KSC), Physical Sciences and Engineering Division (PSE), King Abdullah University of Science and Technology (KAUST), Thuwal, Kingdom of Saudi Arabia
| | - Zhaoning Song
- Department of Physics and Astronomy and Wright Center for Photovoltaics Innovation and Commercialization, The University of Toledo, Toledo, Ohio, USA
| | - Nikolas J Podraza
- Department of Physics and Astronomy and Wright Center for Photovoltaics Innovation and Commercialization, The University of Toledo, Toledo, Ohio, USA
| | - Zheng-Hong Lu
- Department of Materials Science and Engineering, University of Toronto, Toronto, Ontario, Canada
- Department of Physics, Center for Optoelectronics Engineering Research, Yunnan University, Kunming, China
| | - Jinsong Huang
- Department of Applied Physical Sciences, University of North Carolina at Chapel Hill, Chapel Hill, North Carolina, USA
| | - Vinayak P Dravid
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois, USA
| | - Stefaan De Wolf
- KAUST Solar Center (KSC), Physical Sciences and Engineering Division (PSE), King Abdullah University of Science and Technology (KAUST), Thuwal, Kingdom of Saudi Arabia
| | - Yanfa Yan
- Department of Physics and Astronomy and Wright Center for Photovoltaics Innovation and Commercialization, The University of Toledo, Toledo, Ohio, USA
| | - Michael Grätzel
- Laboratory of Photonics and Interfaces, Institute of Chemical Sciences and Engineering, Ecole Polytechnique Fedérale de Lausanne (EPFL), Lausanne, Switzerland
| | | | - Edward Sargent
- Department of Electrical and Computer Engineering, University of Toronto, 35 St George Street, Toronto, Ontario, Canada.
- Department of Chemistry, Northwestern University, Evanston, Illinois, USA.
- Department of Electrical and Computer Engineering, Northwestern University, Evanston, Illinois, USA.
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Cheng M, Lin R, Bai N, Zhang Y, Wang H, Guo M, Duan X, Zheng J, Qiu Z, Zhao Y. Deep learning for predicting the risk of immune checkpoint inhibitor-related pneumonitis in lung cancer. Clin Radiol 2023; 78:e377-e385. [PMID: 36914457 DOI: 10.1016/j.crad.2022.12.013] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 11/14/2022] [Accepted: 12/20/2022] [Indexed: 01/15/2023]
Abstract
AIM To develop and validate a nomogram model that combines computed tomography (CT)-based radiological factors extracted from deep-learning and clinical factors for the early predictions of immune checkpoint inhibitor-related pneumonitis (ICI-P). MATERIALS AND METHODS Forty ICI-P patients and 101 patients without ICI-P were divided randomly into the training (n=113) and test (n=28) sets. The convolution neural network (CNN) algorithm was used to extract the CT-based radiological features of predictable ICI-P and calculated the CT score of each patient. A nomogram model to predict the risk of ICI-P was developed by logistic regression. RESULTS CT score was calculated from five radiological features extracted by the residual neural network-50-V2 with feature pyramid networks. Four predictors of ICI-P in the nomogram model included a clinical feature (pre-existing lung diseases), two serum markers (absolute lymphocyte count and lactate dehydrogenase), and a CT score. The area under curve of the nomogram model in the training (0.910 versus 0.871 versus 0.778) and test (0.900 versus 0.856 versus 0.869) sets was better than the radiological and clinical models. The nomogram model showed good consistency and better clinical practicability. CONCLUSION The nomogram model that combined CT-based radiological factors and clinical factors can be used as a new non-invasive tool for the early prediction of ICI-P in lung cancer patients after immunotherapy with low cost and low manual input.
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Affiliation(s)
- M Cheng
- Department of Internal Medical Oncology, Harbin Medical University Cancer Hospital, Harbin Medical University, Harbin, Heilongjiang Province, China
| | - R Lin
- College of Information and Computer Engineering, Northeast Forestry University, Harbin, Heilongjiang Province, China
| | - N Bai
- College of Information and Computer Engineering, Northeast Forestry University, Harbin, Heilongjiang Province, China
| | - Y Zhang
- Department of Internal Medical Oncology, Harbin Medical University Cancer Hospital, Harbin Medical University, Harbin, Heilongjiang Province, China
| | - H Wang
- Department of Internal Medical Oncology, Harbin Medical University Cancer Hospital, Harbin Medical University, Harbin, Heilongjiang Province, China
| | - M Guo
- Department of Internal Medical Oncology, Harbin Medical University Cancer Hospital, Harbin Medical University, Harbin, Heilongjiang Province, China
| | - X Duan
- Department of Internal Medical Oncology, Harbin Medical University Cancer Hospital, Harbin Medical University, Harbin, Heilongjiang Province, China
| | - J Zheng
- Department of Radiology, Harbin Medical University Cancer Hospital, Harbin Medical University, Harbin, Heilongjiang Province, China
| | - Z Qiu
- College of Information and Computer Engineering, Northeast Forestry University, Harbin, Heilongjiang Province, China
| | - Y Zhao
- Department of Internal Medical Oncology, Harbin Medical University Cancer Hospital, Harbin Medical University, Harbin, Heilongjiang Province, China.
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Gonzalez-Bocco IH, Cheng M, Aleissa MM, Arbona EI, Chen K, Zhou E, Beluch K, Cho A, Burchett S, Hammond SP, Issa NC, Sherman AC, Marty FM. 733. Letermovir treatment for refractory or resistant cytomegalovirus infection or disease with concurrent organ dysfunction: an interim analysis of a Phase 2 open label study. Open Forum Infect Dis 2022. [PMCID: PMC9752064 DOI: 10.1093/ofid/ofac492.024] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/23/2022] Open
Abstract
Background Cytomegalovirus (CMV) disease is associated with increased morbidity and mortality following solid organ and hematopoietic cell transplantation. Currently, standard of care CMV treatments often have significant myelosuppressive or renal toxicities. Given letermovir’s favorable safety profile when used prophylactically, it may be a safe and efficacious alternative agent for CMV treatment. Methods A proof-of-concept, open-label trial was conducted in patients who lacked effective therapeutic options or presented with baseline organ dysfunction. Participants were eligible for enrollment if they were ≥12 years old and had documented CMV infection refractory to treatment defined as failure to achieve >1 log reduction in CMV viral load (VL) (when VL > 500 IU/mL) or lack of clinical improvement for CMV end-organ disease after ≥14 days of standard CMV treatment. Alternatively, patients with severe myelosuppression and renal dysfunction at baseline or genotypic antiviral resistance were also eligible. Participants were excluded if their current CMV infection developed while receiving letermovir for CMV prophylaxis. Letermovir was administered daily (480 mg PO/IV) for up to 12 weeks, with optional additional 12 weeks of treatment for secondary prophylaxis if clinically indicated. Results Ten patients met eligibility criteria and were enrolled. Reasons for enrollment included ganciclovir resistance (1/10), refractory CMV infection (6/10), renal dysfunction (7/10), and myelosuppression (7/10). The median baseline CMV VL was 1272 IU/ml [interquartile range (IQR); 925, 2546]. Six patients completed the study, three died due to complications of primary disease, and one discontinued due to diarrhea. Five patients (50%) had documented CMV viremia clearance, with a median time to first unquantifiable/undetectable CMV VL of 13 days [IQR; 9,18] and a median treatment duration of 53 days [IQR; 15,84]. Infections and GI disorders were the most common adverse events (AE), none considered related to study drug. No unexpected AE were observed during letermovir treatment. Conclusion Letermovir may be a safe and tolerable alternative for patients with treatment refractory CMV infection or for patients with severe baseline myelosuppression and renal dysfunction. Disclosures Matthew Cheng, MD, AstraZeneca: Honoraria|Cidara Therapeutics: Grant/Research Support|Scynexis Inc.: Grant/Research Support Sandra Burchett, MD, MSc, merck: Grant/Research Support Sarah P. Hammond, MD, F2G: Advisor/Consultant|F2G: Grant/Research Support|GSK: Grant/Research Support|Merck: Grant/Research Support|pfizer: Advisor/Consultant|Scynexis: Grant/Research Support Nicolas C. Issa, MD, AiCuris: Grant/Research Support|Merck: Grant/Research Support Francisco M. Marty, MD, SM, AlloVir: Advisor/Consultant|Amplyx: Advisor/Consultant|Amplyx: Grant/Research Support|Ansun: Grant/Research Support|Avir: Advisor/Consultant|Chimerix: Grant/Research Support|Cidara: Grant/Research Support|F2G: Advisor/Consultant|F2G: Grant/Research Support|Gilead: Grant/Research Support|Janssen: Advisor/Consultant|Kyorin: Advisor/Consultant|Merck: Advisor/Consultant|Merck: Grant/Research Support|Regeneron: Advisor/Consultant|Regeneron: Grant/Research Support|ReViral: Advisor/Consultant|Scynexis: Grant/Research Support|Symbio: Advisor/Consultant|Takeda: Grant/Research Support|United Medical: Advisor/Consultant|WHISCO: Grant/Research Support.
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Affiliation(s)
| | - Matthew Cheng
- McGill University Health Centre, Montreal, Quebec, Canada
| | | | | | - Kaiwen Chen
- Robert Wood Johnson Medical School, Piscataway, New Jersey
| | | | | | - Alyssa Cho
- Brigham and Women's Hospital, Boston, Massachusetts
| | - Sandra Burchett
- Boston Childrens Hospital/Harvard Medical School, Boston, Massachusetts
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Cheng M, Roseberry K, Choi Y, Quast L, Gaines M, Sandusky G, Kline JA, Bogdan P, Niculescu AB. Polyphenic risk score shows robust predictive ability for long-term future suicidality. Discov Ment Health 2022; 2:13. [PMID: 35722470 PMCID: PMC9192379 DOI: 10.1007/s44192-022-00016-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/11/2022] [Accepted: 05/24/2022] [Indexed: 11/13/2022]
Abstract
Suicides are preventable tragedies, if risk factors are tracked and mitigated. We had previously developed a new quantitative suicidality risk assessment instrument (Convergent Functional Information for Suicidality, CFI-S), which is in essence a simple polyphenic risk score, and deployed it in a busy urban hospital Emergency Department, in a naturalistic cohort of consecutive patients. We report a four years follow-up of that population (n = 482). Overall, the single administration of the CFI-S was significantly predictive of suicidality over the ensuing 4 years (occurrence- ROC AUC 80%, severity- Pearson correlation 0.44, imminence-Cox regression Hazard Ratio 1.33). The best predictive single phenes (phenotypic items) were feeling useless (not needed), a past history of suicidality, and social isolation. We next used machine learning approaches to enhance the predictive ability of CFI-S. We divided the population into a discovery cohort (n = 255) and testing cohort (n = 227), and developed a deep neural network algorithm that showed increased accuracy for predicting risk of future suicidality (increasing the ROC AUC from 80 to 90%), as well as a similarity network classifier for visualizing patient’s risk. We propose that the widespread use of CFI-S for screening purposes, with or without machine learning enhancements, can boost suicidality prevention efforts. This study also identified as top risk factors for suicidality addressable social determinants.
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Alsharifi A, Carter N, Akbar I, Serna Pascual M, Cheng M, Pengo M, Parati G, Rafferty G, Steier J. Cardiorespiratory Response to Transcutaneous Electrical Stimulation in Healthy Volunteers. Sleep Med 2022. [DOI: 10.1016/j.sleep.2022.05.645] [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: 11/17/2022]
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Cheng M, Cao BY, Liu M, Su C, Chen JJ, Li XQ, Zhang BB, Shi YT, He ZJ, Gong CX. [Efficacy of recombinant human growth hormone treatment in children born small for gestational age with syndromic and non-syndromic short stature]. Zhonghua Er Ke Za Zhi 2022; 60:1196-1201. [PMID: 36319157 DOI: 10.3760/cma.j.cn112140-20220324-00242] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Objective: To analyse the efficacy of recombinant human growth hormone (rhGH) treatment in children born small for gestational age (SGA) with syndormic and non-syndormic short stature. Methods: The clinical data of 59 children born SGA who were diagnosed as short stature and admitted to the Center of Endocrinology, Genetics and Metabolism, Beijing Children's Hospital from July 2012 to June 2021 were collected and analyzed. According to the 2019 consensus on short stature, they were divided into syndromic group and non-syndromic group. Before treatment and 6, 12, 18 and 24 months after treatment, height standard deviation score (Ht-SDS), difference of height standard deviation (∆Ht-SDS) and homeostasis model assessment-insulin resistance index (HOMA-IR) were compared between groups, while Ht-SDS and HOMA-IR were compared before and after treatment. Independent t test or Kruskal-Wallis test were used for comparison between the 2 groups, and paired t test or Mann-Whitney U test were used for the intra-group comparison. Results: Among the 59 cases, 37 were males and 22 females, aged (5.5±2.3) years. There was no significant difference in Ht-SDS after 12 months of treatment between 2 groups (0.9±0.4 vs. 1.2±0.4, t=1.68, P=0.104) or in height SDS after 24 months of treatment (1.4±0.7 vs. 1.9±0.5, t=1.52, P=0.151). After 12 months of treatment, the insulin resistance index of the non-syndromic group was significantly higher than that of the syndromic group (2.29 (1.43, 2.99) vs. 0.90 (0.55, 1.40), Z=-2.95, P=0.003). There were significant differences in Ht-SDS between 6 months and before treatment, 12 months and 6 months in syndromic type (Z=7.65, 2.83 P<0.001, P=0.020), but all were significant differences in non-syndromic type between 6 months and before treatment, 12 months and 6 months, 18 months and 12 months, 24 months and 18 months (Z=11.95, 7.54, 4.26, 3.83, all P<0.001). Conclusion: The efficacy of rhGH treatment in children born SGA is comparable between syndromic and non-syndromic short stature cases, but non-syndromic children treated with rhGH need more frequent follow-up due to the risk of insulin resistance.
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Affiliation(s)
- M Cheng
- Department of Endocrinology, Genetics and Metabolism, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - B Y Cao
- Department of Endocrinology, Genetics and Metabolism, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - M Liu
- Department of Endocrinology, Genetics and Metabolism, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - C Su
- Department of Endocrinology, Genetics and Metabolism, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - J J Chen
- Department of Endocrinology, Genetics and Metabolism, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - X Q Li
- Department of Endocrinology, Genetics and Metabolism, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - B B Zhang
- Department of Endocrinology, Genetics and Metabolism, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Y T Shi
- Department of Endocrinology, Genetics and Metabolism, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Z J He
- Department of Endocrinology, Genetics and Metabolism, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - C X Gong
- Department of Endocrinology, Genetics and Metabolism, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
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13
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Guo J, Zang J, Yin Y, Cheng M, Long X, Zhao L. A Single-Blind, Randomized Controlled Trial of Sanyrene — A Complex of Linoleic Acid and Vitamin E for Prophylaxis of Radiation Dermatitis in Patients with Breast and Head Neck Cancer. Int J Radiat Oncol Biol Phys 2022. [DOI: 10.1016/j.ijrobp.2022.07.635] [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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14
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Jia L, Cheng M. Correlation analysis between risk factors, BMD and serum osteocalcin, CatheK, PINP, β-crosslaps, TRAP, lipid metabolism and BMI in 128 patients with postmenopausal osteoporotic fractures. Eur Rev Med Pharmacol Sci 2022; 26:7955-7959. [PMID: 36394744 DOI: 10.26355/eurrev_202211_30147] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
OBJECTIVE Our aim is to investigate the correlation between risk factors of postmenopausal osteoporotic fracture, BMD and Bone turnover markers, lipid metabolism and BMI. SUBJECTS AND METHODS The Cox proportional hazard model was used to conduct univariate and multivariate analysis to screen the risk factors related to postmenopausal osteoporotic fractures. Blood samples were collected to detect biochemical markers of bone turnover, blood lipids content, and then measure the BMI of the survey subjects. BMD was measured and its correlation with biochemical markers of bone turnover, lipid metabolism and BMI was analyzed. RESULTS Cox univariate analysis indicated that average age, menopause, years since menopause, number of deliveries, and limb spasm are associated covariates of postmenopausal osteoporotic fractures. Where, BMD severity, history of hysterectomy or ovariectomy, and years since menopause are significant covariates for the incidence of postmenopausal osteoporotic fractures. The correlation study with lipid metabolism found that the smaller the BMI value, the greater the BMD loss; the smaller the TG value, the greater the BMD loss, exhibiting a downward trend. No difference was observed between HDL-C and LDL-C content, and the difference was not statistically significant (p>0.05). Femoral neck BMD was negatively correlated with CatheK, serum osteocalcin, PINP, β-crosslaps and TRAP, and lumbar spine BMD was also negatively correlated with CatheK, serum osteocalcin, PINP, β-crosslaps and TRAP. CONCLUSIONS Biochemical markers of bone turnover are highly expressed in postmenopausal women and increase with the decrease of bone density, which can be used as markers for disease prediction. Combined with BMI, triglyceride and other related indicators, and closely related factors such as the patient's age, the number of deliveries, it is possible to predict the incidence of PMOP fractures early.
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Affiliation(s)
- L Jia
- Jinniu District People's Hospital of Chengdu, Chengdu, China.
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15
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Spicer J, Cascone T, Kar G, Zheng Y, Blando J, Tan T, Cheng M, Mager R, Hamid O, Soo-Hoo Y, Forde P, Weder W, Garcia Campelo M, Grenga I, Kumar R, McGrath L. 929MO Platform study of neoadjuvant durvalumab (D) alone or combined with novel agents in patients (pts) with resectable, early-stage non-small cell lung cancer (NSCLC): Pharmacodynamic correlates and circulating tumor DNA (ctDNA) dynamics in the NeoCOAST study. Ann Oncol 2022. [DOI: 10.1016/j.annonc.2022.07.1055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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16
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Sacher A, Patel M, Miller W, Desai J, Garralda E, Bowyer S, Kim T, De Miguel M, Falcon A, Krebs M, Lee J, Cheng M, Han SW, Shacham-Shmueli E, Forster M, Jerusalem G, Massarelli E, Paz-Ares Rodriguez L, Prenen H, Walpole I, Arbour K, Choi Y, Dharia N, Lin M, Mandlekar S, Royer Joo S, Shi Z, Schutzman J, LoRusso P. OA03.04 Phase I A Study to Evaluate GDC-6036 Monotherapy in Patients with Non-small Cell Lung Cancer (NSCLC) with KRAS G12C Mutation. J Thorac Oncol 2022. [DOI: 10.1016/j.jtho.2022.07.023] [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: 10/14/2022]
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17
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Cheng M, Iyer AK, Zhou X, Tyner A, Liu Y, Shehzad MA, Goswami P, Chung DY, Kanatzidis MG, Dravid VP. Tuning the Structural and Magnetic Properties in Mixed Cation Mn xCo 2-xP 2S 6. Inorg Chem 2022; 61:13719-13727. [PMID: 35998562 DOI: 10.1021/acs.inorgchem.2c01116] [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: 11/29/2022]
Abstract
The metal thiophosphates (MTP), M2P2S6, are a versatile class of van der Waals materials, which are notable for the possibility of tuning their magnetic properties with the incorporation of different transition-metal cations. Further, they also offer opportunities to probe the independent and synergistic role of the magnetically active cation sublattice when coupled to P2Q6 polyhedra. Herein, we report the structural, magnetic, and electronic properties of the series of MTPs, MnxCo2-xP2S6 (x = 0.25, 0.5, 1, 1.5, 1.75) synthesized by the P2S5 flux method. Structural and elemental analysis indicates a homogeneous stoichiometry in the MnxCo2-xP2S6 compounds. We observe that a correlation is apparent between the intensities of specific Raman modes and Raman shifts with respect to the alloying ratio between Mn and Co. Magnetic susceptibility measurements indicate that the alloyed systems adopt an ordered antiferromagnetic (AFM) configuration with a dependence of the Néel temperature on the alloying ratio. A possible magnetic frustration behavior was observed for the composition MnCoP2S6 due to magnetic moment compensation as the alloying ratio between Mn and Co approaches parity. Interestingly, mixed oxidation states of the metal cation species are also observed in MnxCo2-xP2S6 along with a linear dependence of the work function on the alloying ratio of Mn and Co.
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Affiliation(s)
- Matthew Cheng
- Department of Material Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Abishek K Iyer
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Xiuquan Zhou
- Materials Science Division, Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439, United States
| | - Alexander Tyner
- Graduate program in Applied Physics, Northwestern University, Evanston, Illinois 60208, United States
| | - Yukun Liu
- Department of Material Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - M Arslan Shehzad
- Department of Material Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States.,Northwestern University Atomic and Nanoscale Characterization Experimental (NUANCE) Center, Northwestern University, Evanston, Illinois 60208, United States
| | - Pallab Goswami
- Graduate program in Applied Physics, Northwestern University, Evanston, Illinois 60208, United States.,Department of Physics and Astronomy, Northwestern University, Evanston, Illinois 60208, United States
| | - Duck Young Chung
- Materials Science Division, Argonne National Laboratory, 9700 South Cass Avenue, Lemont, Illinois 60439, United States
| | - Mercouri G Kanatzidis
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Vinayak P Dravid
- Department of Material Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States.,Northwestern University Atomic and Nanoscale Characterization Experimental (NUANCE) Center, Northwestern University, Evanston, Illinois 60208, United States.,International Institute for Nanotechnology (IIN), Northwestern University, Evanston, Illinois 60208, United States
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18
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Abstract
This secondary analysis of a randomized clinical trial examines the risk of kidney or hepatic toxic effects among patients with impaired kidney function at baseline treated with remdesivir.
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Affiliation(s)
- Matthew Cheng
- McGill University Health Centre, Montréal, Québec, Canada
| | - Rob Fowler
- Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
| | - Srinivas Murthy
- Faculty of Medicine, University of British Columbia, Vancouver, British Columbia, Canada
| | - Ruxandra Pinto
- Sunnybrook Health Sciences Centre, Toronto, Ontario, Canada
| | - Nancy L. Sheehan
- McGill University Health Centre, Montréal, Québec, Canada
- Faculty of Pharmacy, University of Montréal, Montréal, Québec, Canada
| | - Alice Tseng
- University Health Network, Toronto General Hospital, Toronto, Ontario, Canada
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19
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Pakzad A, Cheng M, Lee YS, Lyer AK, dos Reis R, Kanatzidis MG, Dravid VP. Structure analysis of metal-chalcophosphate layered systems using micro-ED. Acta Crystallogr A Found Adv 2022. [DOI: 10.1107/s2053273322098977] [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: 11/10/2022] Open
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20
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Lee YS, Abedini Dereshgi S, Hao S, Cheng M, Shehzad MA, Wolverton C, Aydin K, Dos Reis R, Dravid VP. Probing the Optical Response and Local Dielectric Function of an Unconventional Si@MoS 2 Core-Shell Architecture. Nano Lett 2022; 22:4848-4853. [PMID: 35675212 DOI: 10.1021/acs.nanolett.2c01221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Heterostructures of optical cavities and quantum emitters have been highlighted for enhanced light-matter interactions. A silicon nanosphere, core, and MoS2, shell, structure is one such heterostructure referred to as the core@shell architecture. However, the complexity of the synthesis and inherent difficulties to locally probe this architecture have resulted in a lack of information about its localized features limiting its advances. Here, we utilize valence electron energy loss spectroscopy (VEELS) to extract spatially resolved dielectric functions of Si@MoS2 with nanoscale spatial resolution corroborated with simulations. A hybrid electronic critical point is identified ∼3.8 eV for Si@MoS2. The dielectric functions at the Si/MoS2 interface is further probed with a cross-sectioned core-shell to assess the contribution of each component. Various optical parameters can be defined via the dielectric function. Hence, the methodology and evolution of the dielectric function herein reported provide a platform for exploring other complex photonic nanostructures.
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Affiliation(s)
- Yea-Shine Lee
- Department of Material Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Sina Abedini Dereshgi
- Department of Electrical and Computer Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Shiqiang Hao
- Department of Material Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Matthew Cheng
- Department of Material Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Muhammad Arslan Shehzad
- Department of Material Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
- Northwestern University Atomic and Nanoscale Characterization Experimental (NUANCE) Center, Northwestern University, Evanston, Illinois 60208, United States
| | - Christopher Wolverton
- Department of Material Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Koray Aydin
- Department of Electrical and Computer Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Roberto Dos Reis
- Department of Material Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
- Northwestern University Atomic and Nanoscale Characterization Experimental (NUANCE) Center, Northwestern University, Evanston, Illinois 60208, United States
- International Institute for Nanotechnology (IIN), Northwestern University, Evanston, Illinois 60208, United States
| | - Vinayak P Dravid
- Department of Material Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
- Northwestern University Atomic and Nanoscale Characterization Experimental (NUANCE) Center, Northwestern University, Evanston, Illinois 60208, United States
- International Institute for Nanotechnology (IIN), Northwestern University, Evanston, Illinois 60208, United States
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21
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Xie H, Liu Y, Zhang Y, Hao S, Li Z, Cheng M, Cai S, Snyder GJ, Wolverton C, Uher C, Dravid VP, Kanatzidis MG. High Thermoelectric Performance in Chalcopyrite Cu 1-xAg xGaTe 2-ZnTe: Nontrivial Band Structure and Dynamic Doping Effect. J Am Chem Soc 2022; 144:9113-9125. [PMID: 35537206 DOI: 10.1021/jacs.2c02726] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/09/2023]
Abstract
The understanding of thermoelectric properties of ternary I-III-VI2 type (I = Cu, Ag; III = Ga, In; and VI = Te) chalcopyrites is less well developed. Although their thermal transport properties are relatively well studied, the relationship between the electronic band structure and charge transport properties of chalcopyrites has been rarely discussed. In this study, we reveal the unusual electronic band structure and the dynamic doping effect that could underpin the promising thermoelectric properties of Cu1-xAgxGaTe2 compounds. Density functional theory (DFT) calculations and electronic transport measurements suggest that the Cu1-xAgxGaTe2 compounds possess an unusual non-parabolic band structure, which is important for obtaining a high Seebeck coefficient. Moreover, a mid-gap impurity level was also observed in Cu1-xAgxGaTe2, which leads to a strong temperature-dependent carrier concentration and is able to regulate the carrier density at the optimized value for a wide temperature region and thus is beneficial to obtaining the high power factor and high average ZT of Cu1-xAgxGaTe2 compounds. We also demonstrate a great improvement in the thermoelectric performance of Cu1-xAgxGaTe2 by introducing Cu vacancies and ZnTe alloying. The Cu vacancies are effective in increasing the hole density and the electrical conductivity, while ZnTe alloying reduces the thermal conductivity. As a result, a maximum ZT of 1.43 at 850 K and a record-high average ZT of 0.81 for the Cu0.68Ag0.3GaTe2-0.5%ZnTe compound are achieved.
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Affiliation(s)
- Hongyao Xie
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Yukun Liu
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Yinying Zhang
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Shiqiang Hao
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Zhi Li
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Matthew Cheng
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Songting Cai
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - G Jeffrey Snyder
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Christopher Wolverton
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Ctirad Uher
- Department of Physics, University of Michigan, Ann Arbor, Michigan 48109, United States
| | - Vinayak P Dravid
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Mercouri G Kanatzidis
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
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22
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Vardy ERLC, Anand A, Cheng M, Ibitoye T, MacLullich AMJ. 795 A POSITIVE 4AT DELIRIUM ASSESSMENT TOOL SCORE ON HOSPITAL ADMISSION IS LINKED TO MORTALITY, LENGTH OF STAY AND ‘HOME TIME’: A STUDY OF 82,770 HOSPITAL ADMISSIONS IN EDINBURGH AND SALFORD. Age Ageing 2022. [DOI: 10.1093/ageing/afac037.795] [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: 11/13/2022] Open
Abstract
Abstract
Introduction
Delirium is linked with poor outcomes but studies using large-scale routine data are scarce. The 4AT (www.the4AT.com) is a brief (~2 minutes), well-validated tool for detection of delirium and cognitive impairment. We performed a two-centre study (Edinburgh and Salford) of Electronic Health Record (EHR) 4AT scores and outcomes in 82,770 non-elective hospital admissions in patients aged ≥65. We determined relationships between 4AT scores 0 (no impairment), 1–3 (cognitive impairment but no delirium) and ≥ 4 (delirium), in relation to 30-day inpatient mortality, length of stay, and time at home (‘home time’) in the year following index admission.
Methods
We analysed EHR 4AT scores recorded within 24 hours of admission, and outcomes data were also derived from the EHR. The study period was between April 2016 (Edinburgh)/September 2017 (Salford) and April 2020 (both centres).
Results
4AT scores suggestive of delirium (≥4) were present in 25% in Salford, and 18% in Edinburgh. After adjustment for age and sex, 30-day inpatient mortality with 4AT ≥4 was 5.5-fold greater than the 4AT 0 group in Edinburgh (aOR 5.53, 95% confidence interval [CI] 4.99–6.13) and 3.4-fold greater in Salford (aOR 3.39, 95% CI 2.98–3.87). Length of stay was more than double in patients with any abnormal 4AT score compared to a 4AT score of 0. The median ‘home time’ at 1 year was reduced by 112 days (Edinburgh) and 61 days (Salford) in the 4AT ≥4 compared to 4AT 0 days.
Conclusions
This large study using routine clinical data confirms the relationships between delirium and poor outcomes previously reported in smaller research studies. Further, the results demonstrate the feasibility and value of using a brief clinical tool to identify delirium as a strong marker of adverse outcomes, and will be helpful in guiding policy development around patient safety including better treatment of delirium.
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Affiliation(s)
- E R L C Vardy
- Salford Royal NHS Foundation trust, Northern Care Alliance, Stott Lane, Salford
| | - A Anand
- Cardiovascular sciences, University of Edinburgh
| | - M Cheng
- Salford Royal NHS Foundation trust, Northern Care Alliance, Stott Lane, Salford
| | - T Ibitoye
- Edinburgh Delirium Research Group, Geriatric Medicine, Usher Institute, University of Edinburgh
| | - A M J MacLullich
- Edinburgh Delirium Research Group, Geriatric Medicine, Usher Institute, University of Edinburgh
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23
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Liu Z, Cao S, Chen Q, Fu F, Cheng M, Huang X. [MicroRNA-132 promotes atherosclerosis by inducing mitochondrial oxidative stressmediated ferroptosis]. Nan Fang Yi Ke Da Xue Xue Bao 2022; 42:143-149. [PMID: 35249882 DOI: 10.12122/j.issn.1673-4254.2022.01.18] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To explore the expression of microRNA-132 (miR-132) and its potential role in the development of atherosclerosis (AS). METHODS Thirty AS samples and 30 samples of normal peripheral vessels were collected from atherosclerotic patients undergoing peripheral angiostomy in our hospital for detecting the expression level of miR-132 using RT-qPCR. The expression of miR-132 in human umbilical vein endothelial cells (HUVEC) was up-regulated by liposome transfection, and intracellular reactive oxygen species (ROS), localization relationship between ROS and mitochondria, functional changes of mitochondrial reactive oxygen superoxide species (mtROS), mitochondrial membrane potential (MMP) and opening of mitochondrial permeability transition pore (mPTP) were analyzed by flow cytometry and laser confocal microscopy. The activity of mitochondrial redox respiratory chain complex (type I, II, III, IV and V) in HUVECs was detected using ELISA, and the expression levels of key iron death proteins were detected with Western blotting. RESULTS RT-qPCR results showed that miR-132 was significantly up-regulated in atherosclerotic plaques compared with normal vascular samples (P < 0.001). Compared with control HUVECs, HUVECs overexpressing miR-132 showed a significantly increased level of intracellular ROS (P < 0.001), and most of ROS was colocalized with mitochondria. HUVECs overexpressing miR-132 also showed significantly decreased MMP (P < 0.001) and obviously increased mtROS (P < 0.001) and opening of mPTP (P < 0.001), which led to mitochondrial REDOX respiratory chain stress disorder. The key iron death protein GPX4 was significantly down-regulated and the oxidized protein NOX4 was significantly increased in miR-132-overexpressing HUVECs (P < 0.001). CONCLUSION MiR-132 promotes atherosclerosis by inducing mitochondrial oxidative stress-mediated ferroptosis, which may serve as a promising therapeutic target for AS.
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Affiliation(s)
- Z Liu
- Dermatology Hospital of Southern Medical University, Guangzhou 510030, China
| | - S Cao
- Department of Thoracic Surgery, Southern Medical University, Guangzhou 510515, China
| | - Q Chen
- Department of Vascular Surgery, Third Affiliated Hospital of Southern Medical University, Guangzhou 510665, China
| | - F Fu
- Department of Vascular Surgery, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - M Cheng
- Zengcheng Branch of Nanfang Hospital, Southern Medical University, Guangzhou 511300, China
| | - X Huang
- Department of Vascular Surgery, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
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24
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Cheng M, Zhu Y, Liu Q, Shen S, Qian Y, Yu H. Efficacy of surgical navigation in zygomaticomaxillary complex fractures: randomized controlled trial. Int J Oral Maxillofac Surg 2021; 51:1180-1187. [PMID: 34961645 DOI: 10.1016/j.ijom.2021.12.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 10/07/2021] [Accepted: 12/14/2021] [Indexed: 11/18/2022]
Abstract
Accurate reduction is of vital importance in the treatment of zygomaticomaxillary complex (ZMC) fractures. Computer-assisted navigation systems (CANS) have been employed in ZMC fractures to improve the accuracy of surgical reduction. However, randomized controlled trials on this subject are rare and the benefits of CANS remain controversial. The aim of this study was to compare reduction errors between navigation-aided and conventional surgical treatment for ZMC fractures. Thirty-eight patients with unilateral type B ZMC fractures were enrolled. Preoperative computed tomography data were imported into ProPlan software for virtual surgical planning. Open reduction and internal fixation was performed with CANS (experimental group) or without CANS (control group). Postoperative computed tomography scans were obtained to examine the difference between surgical planning and the actual postoperative outcome, namely reduction errors. The median translational reduction errors in the X, Y, and Z axes were 0.80 mm, 0.40 mm, and 0.80 mm, respectively, in the experimental group and 0.53 mm, 0.86 mm, and 0.83 mm, respectively, in the control group (P > 0.05). The median rotational reduction errors in pitch, roll, and yaw were 0.92°, 2.47°, and 1.54°, respectively, in the experimental group and 1.45°, 3.68°, and 0.76°, respectively, in the control group (P > 0.05). In conclusion, compared with conventional reduction surgery, navigation-aided surgery showed no significant improvement in reduction accuracy in the treatment of type B ZMC fractures (Chinese Clinical Trial Registry, registration number ChiCTR1800015559).
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Affiliation(s)
- M Cheng
- Department of Oral and Craniomaxillofacial Surgery, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China; National Clinical Research Center for Oral Diseases, Shanghai, China; Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology, Shanghai, China
| | - Y Zhu
- Department of Oral and Craniomaxillofacial Surgery, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China; National Clinical Research Center for Oral Diseases, Shanghai, China; Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology, Shanghai, China
| | - Q Liu
- Department of Oral and Craniomaxillofacial Surgery, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China; National Clinical Research Center for Oral Diseases, Shanghai, China; Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology, Shanghai, China
| | - S Shen
- Department of Oral and Craniomaxillofacial Surgery, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China; National Clinical Research Center for Oral Diseases, Shanghai, China; Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology, Shanghai, China
| | - Y Qian
- Department of Oral and Craniomaxillofacial Surgery, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China; National Clinical Research Center for Oral Diseases, Shanghai, China; Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology, Shanghai, China
| | - H Yu
- Department of Oral and Craniomaxillofacial Surgery, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University School of Medicine, Shanghai, China; National Clinical Research Center for Oral Diseases, Shanghai, China; Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology, Shanghai, China.
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25
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Mitre X, Feeley M, Sherman AC, Walsh SR, Cheng M, Kanjilal S, Ho VT, Baden LR, Issa NC, Desjardins M. 100. Safety Analysis of Live-Attenuated Measles, Mumps, Rubella Vaccine Among Hematopoietic Cell Transplant Recipients Vaccinated Within Two Years of Transplant. Open Forum Infect Dis 2021. [PMCID: PMC8644540 DOI: 10.1093/ofid/ofab466.100] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Background Measles, mumps and rubella (MMR) vaccine is a live-attenuated vaccine usually contraindicated within the first two years of hematopoietic cell transplant (HCT). During the 2019 measles outbreak at our center, the benefits of administering MMR vaccine within the first two years after HCT were weighed against the potential risks. Methods We conducted a retrospective review of patients who received MMR vaccination within two years of an autologous or allogeneic HCT. Patients’ demographics, date and type of HCT, underlying hematologic disease, type of immunosuppressive therapy and date of MMR vaccination were extracted from the electronic medical record. Adverse reactions that could be related to the vaccine were collected for up to 42 days post-vaccination and all hospitalizations and deaths following vaccination were reviewed. Results A total of 129 patients (75 autologous and 54 allogeneic HCT) were vaccinated between 300-729 days after HCT (median of 718 days). The median age at vaccination was 61 years old, 57% of the patients were male and 43% were on immunosuppressive therapy, 87% of whom were on maintenance therapy for multiple myeloma after auto-HCT. Seven patients (5%) had adverse reactions within 42 days of vaccination: six had respiratory tract infections (three with associated fever) and one had a rash leading to a brief hospitalization. This was a 37-year-old female who had an allogeneic HCT 542 days prior to MMR vaccination. She presented with a centrifugal maculopapular rash that was confirmed to be caused by the vaccine strain rubella virus (Fig 1). She fully recovered without sequalae. There was no other vaccine-associated illness identified in the cohort, after a median follow-up of 676 days. ![]()
Conclusion MMR vaccine appears to be well tolerated in selected HCT recipients when given earlier than 2 years after transplant. No attributable severe outcomes or deaths were described. A mild uncomplicated case of vaccine-associated rubella illness was seen after vaccination. In the setting of a measles outbreak, assessment of potential risks and benefits of MMR vaccination given within two years of HCT remains important. Disclosures Stephen R. Walsh, MDCM, Janssen Vaccines (Scientific Research Study Investigator)Regeneron (Scientific Research Study Investigator)Sanofi Pasteur (Scientific Research Study Investigator) Matthew Cheng, MD, GEn1E Lifesciences (Advisor or Review Panel member)Kanvas Biosciences (Board Member, Shareholder)nplex biosciences (Advisor or Review Panel member) Sanjat Kanjilal, MD, MPH, GlaskoSmithKline (Advisor or Review Panel member) Nicolas C. Issa, MD, AiCuris (Scientific Research Study Investigator)Astellas (Scientific Research Study Investigator)GSK (Scientific Research Study Investigator)Merck (Scientific Research Study Investigator)
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Affiliation(s)
- Xhoi Mitre
- Brigham and Women's Hospital, Boston, Massachusetts
| | | | - Amy C Sherman
- Harvard Medical School/Brigham and Women's Hospital, Boston, Massachusetts
| | | | - Matthew Cheng
- McGill University Health Centre, Montreal, Quebec, Canada
| | - Sanjat Kanjilal
- Harvard Medical School and Harvard Pilgrim Healthcare Institute, Jamaica Plain, MA
| | - Vincent T Ho
- Dana-Farber Cancer Institute, Boston, Massachusetts
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26
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Gonzalez-Bocco IH, Aleissa MM, Cheng M, Manne-Goehler J, Marty FM. 1399. Clarithromycin–Rifampin-based Treatment for Non-tuberculous Mycobacterial Infections in Immunocompromised Patients Who Require Concomitant CYP-Metabolized Medications. Open Forum Infect Dis 2021. [PMCID: PMC8643767 DOI: 10.1093/ofid/ofab466.1591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Abstract
Background Non-tuberculous mycobacteria (NTM) are causes of pulmonary and extrapulmonary disease that frequently affect immunocompromised hosts (ICH). Current treatment guidelines recommend a macrolide-based, multi-drug regimen that includes rifampin. Rifampin is a potent cytochrome P450 (CYP) 3A inducer, which often results in drug-drug interactions in ICH receiving multiple CYP substrates. One way to mitigate rifampin’s CYP induction is to utilize clarithromycin, a CYP inhibitor, as the accompanying macrolide. We evaluated the incidence of NTM treatment-related adverse events (AEs) in patients who received a clarithromycin-based regimen compared to patients who received an azithromycin-based regimen. Methods We conducted a retrospective review of NTM infection in 30 immunocompromised adults. All participants had a positive culture for a NTM and had received a rifamycin (rifampin or rifabutin) with a macrolide (azithromycin or clarithromycin) for treatment at Brigham and Women’s Hospital between 01/01/2011-10/18/2020 or Dana-Farber Cancer Institute between 06/03/2015-07/01/2020. The primary outcome was the incidence of NTM treatment-related AEs in patients who received a clarithromycin-based regimen compared to those who received an azithromycin-based regimen. Results There were no significant differences in the reasons for discontinuation of NTM treatment or 90-day mortality between groups. The number of AEs possibly related to NTM treatment were similar in patients who received a clarithromycin-based regimen and those who received an azithromycin-based one (10/13 vs. 14/17; p=0.73). The most common AE was liver function test abnormalities (Table 1). Additionally, the proportion of patients requiring dose adjustments for interacting medications and patients with out-of-range tacrolimus levels were similar between the two groups (23.1% vs. 29.4%; p=0.76 and 8.0% vs. 6.0%; p=1.00, respectively). Table 1: Adverse events ![]()
Conclusion A clarithromycin-based regimen for NTM treatment was safe and well tolerated in our patient population. This combination provides a good alternative for patients requiring medications that are CYP substrates, or those who cannot tolerate azithromycin. Disclosures Matthew Cheng, MD, GEn1E Lifesciences (Advisor or Review Panel member)Kanvas Biosciences (Board Member, Shareholder)nplex biosciences (Advisor or Review Panel member)
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Affiliation(s)
| | | | - Matthew Cheng
- McGill University Health Centre, Montreal, Quebec, Canada
| | | | - Francisco M Marty
- Massachusetts General Hospital, Dana-Farber Cancer Institute, Harvard Medical School, Boston, Massachusetts
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27
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Cheng M, Lee YS, Iyer AK, Chica DG, Qian EK, Shehzad MA, Dos Reis R, Kanatzidis MG, Dravid VP. Mixed Metal Thiophosphate Fe 2-xCo xP 2S 6: Role of Structural Evolution and Anisotropy. Inorg Chem 2021; 60:17268-17275. [PMID: 34699195 DOI: 10.1021/acs.inorgchem.1c02635] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
Metal chalcophosphates, M2P2Q6 (M = transition metals; Q = chalcogen), are notable among the van der Waals materials family for their potential magnetic ordering that can be tuned with an appropriate choice of the metal or chalcogen. However, there has not been a systematic investigation of the basic structural evolution in these systems with alloying of the crystal subunits due to the challenge in the diffusion process of mixing different metal cations in the octahedral sites of M2P2Q6 materials. In this work, the P2S5 flux method was used to enable the synthesis of a multilayered mixed metal thiophosphate Fe2-xCoxP2S6 (x = 0, 0.25, 1, 1.75, and 2) system. Here, we studied the structural, vibrational, and electronic fingerprints of this mixed M2P2Q6 system. Structural and elemental analyses indicate a homogeneous stoichiometry averaged through the sample over multiple layers of Fe2-xCoxP2S6 compounds. It was observed that there is a correlation between the intensity of specific phonon modes and the alloying concentration. The increasing Co alloying concentration shows direct relations to the in-plane [P2S6]4- and out-of-plane P-P dimer vibrations. Interestingly, an unusual nonlinear electronic structure dependence on the metal alloying ratio is found and confirmed by two distinct work functions within the Fe2-xCoxP2S6 system. We believe this work provides a fundamental structural framework for mixed metal thiophosphate systems, which may assist in future studies on electronic and magnetic applications of this emerging class of binary cation materials.
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Affiliation(s)
- Matthew Cheng
- Department of Material Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Yea-Shine Lee
- Department of Material Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Abishek K Iyer
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Daniel G Chica
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Eric K Qian
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Muhammad Arslan Shehzad
- Department of Material Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States.,Northwestern University Atomic and Nanoscale Characterization Experimental (NUANCE) Center, Northwestern University, Evanston, Illinois 60208, United States
| | - Roberto Dos Reis
- Department of Material Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States.,Northwestern University Atomic and Nanoscale Characterization Experimental (NUANCE) Center, Northwestern University, Evanston, Illinois 60208, United States
| | - Mercouri G Kanatzidis
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Vinayak P Dravid
- Department of Material Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States.,Northwestern University Atomic and Nanoscale Characterization Experimental (NUANCE) Center, Northwestern University, Evanston, Illinois 60208, United States.,International Institute for Nanotechnology (IIN), Northwestern University, Evanston, Illinois 60208, United States
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28
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Zhang WB, Yang QB, Wu SF, Lu SH, Cheng M, Sheng Y, Zhang QC, Yang LF, Yu L, Yan SX. [Application of diffusion-weighted magnetic resonance imaging in evaluating the efficacy of radiotherapy and chemotherapy for esophageal cancer]. Zhonghua Yi Xue Za Zhi 2021; 101:3427-3430. [PMID: 34758548 DOI: 10.3760/cma.j.cn112137-20210709-01544] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
This study was a prospective single arm trial conducted in Zhejiang Jinhua Guangfu hospital from February 2018 to June 2020. A total of 39 patients (32 males and 7 females) with esophageal cancer, aged from 44 to 82 (69±9) years were enrolled. Diffusion weighted magnetic resonance imaging(MR-DWI) was implemented to evaluate the changes of apparent diffusion coefficient(ADC) value before and after chemoradiotherapy. The results showed that the ADC value after chemoradiotherapy was higher than that before treatment[(2.03±0.42)×10⁻³ mm 2/s vs (1.60±0.28)×10⁻³ mm2/s], and there was a positive correlation between the increase of ADC value and the prognosis of patients.
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Affiliation(s)
- W B Zhang
- Department of Radiotherapy,the First People's Hospital of Jiande,Jiande 311600,China
| | - Q B Yang
- Department of Radiology,Zhejiang Jinhua Guangfu Hospital,Jinhua 321000,China
| | - S F Wu
- Special Inspection Branch, Jinhua 5th Hospital,Jinhua 321000,China
| | - S H Lu
- Department of Radiology,Zhejiang Jinhua Guangfu Hospital,Jinhua 321000,China
| | - M Cheng
- Department of Thoracic Surgery,Zhejiang Jinhua Guangfu Hospital,Jinhua 321000,China
| | - Y Sheng
- Department of Digestive Medicine,Zhejiang Jinhua Guangfu Hospital,Jinhua 321000,China
| | - Q C Zhang
- Department of Radiology,Zhejiang Jinhua Guangfu Hospital,Jinhua 321000,China
| | - L F Yang
- Department of Radiology,Zhejiang Jinhua Guangfu Hospital,Jinhua 321000,China
| | - L Yu
- Department of Radiology,Zhejiang Jinhua Guangfu Hospital,Jinhua 321000,China
| | - S X Yan
- Department of Radiotherapy,the First Affiliated Hospital Zhejiang University School of Medicine,Hangzhou 310003,China
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29
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Shi JJ, Zhang X, Cheng M, Zhang S, Geng CZ. [Effects of intestinal flora on the degree of infiltration of tumor-infiltrating lymphocytes in breast cancer]. Zhonghua Yi Xue Za Zhi 2021; 101:3164-3167. [PMID: 34674429 DOI: 10.3760/cma.j.cn112137-20210306-00569] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate whether the abundance or diversity of intestinal flora in breast cancer (BC) patients effects on the degree of tumor infiltration lymphocytes in breast cancer tissues. Methods: Between March 2017 and October 2017, a total of 80 biopsy-confirmed female patients with BC were enrolled in the present study at the Breast Center of the Fourth Hospital of Hebei Medical University (Shijiazhuang, China), age distribution ranged from 37 to 74 years, which were divided into three groups based on the infiltration of tumor-infiltrating lymphocytes, as follows: high infiltration of TILs (TIL-H) 25 cases, medium infiltration of TILs (TIL-M) 34 cases and low infiltration of TILs (TIL-L) 21 cases. DNA of the intestinal flora was determined by Illumina sequencing and taxonomy of 16S ribosomal RNA genes. Compare the differences in the abundance or diversity of intestinal flora between these three groups. The relationship between tumor-infiltrating lymphocytes and clinical characteristics was analyzed by χ2 tested, and the relationship with intestinal flora was analyzed by β diversity. Results: There were 3, 174, 2, 996, and 2, 877 different OUTs in the TIL-H, TIL-M, and TIL-L groups. The β-diversity distribution was statistically significant (weighted UniFrac, P<0.01; unweighted UniFrac, P<0.01) when comparing the three groups (TIL-H vs. TIL-M vs. TIL-L), the differences between TIL-L and TIL-H groups were greatest. Conclusions: The infiltration level of tumor-infiltrating lymphocytes in breast cancer patients was closely related to the diversity of intestinal flora.
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Affiliation(s)
- J J Shi
- Breast Center, Fourth Hospital of Hebei Medical University, Shijiazhuang 050035, China
| | - X Zhang
- Breast Center, Fourth Hospital of Hebei Medical University, Shijiazhuang 050035, China
| | - M Cheng
- Breast Center, Fourth Hospital of Hebei Medical University, Shijiazhuang 050035, China
| | - S Zhang
- Breast Center, Fourth Hospital of Hebei Medical University, Shijiazhuang 050035, China
| | - C Z Geng
- Breast Center, Fourth Hospital of Hebei Medical University, Shijiazhuang 050035, China
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30
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Nakajima N, Kawano H, Kai Y, Takai A, Abe M, Iimura Y, Cheng M, Yoshida M, Yamashita N. P–248 Statistical estimation for incidence of blastocyst trophectoderm vesicles (TVs) and efficacy of assisted hatching (AH). Hum Reprod 2021. [DOI: 10.1093/humrep/deab130.247] [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: 11/13/2022] Open
Abstract
Abstract
Study question
The aim of this study is to analyse the association between blastocyst diameter and TVs development, and to examine the efficacy of AH.
Summary answer
Blastocysts with a diameter of more than 170 μm leads to high incidence of TVs and AH applied from the incidence should be effective.
What is known already
TVs are protrusion of trophectoderm cells often observed in expanding blastocyst stages. TVs can be observed in expanding blastocysts regardless of Intracytoplasmic sperm injection (ICSI) and Conventional-IVF (C-IVF), when the internal pressure of blastocysts increase. The rate of TVs incidence in blastocysts inseminated by ICSI is higher than that by C-IVF, due to penetration of the needle into the zona pellucida. Moreover, it has been reported that TVs may inhibit blastocyst hatching. However, the developmental timing of TVs is still unclear, and there is no study that has analysed the association between blastocyst diameter and the incidence of TVs.
Study design, size, duration
1) Diameters and TVs incidence of blastocysts by ICSI and C-IVF were measured, and the cut-off value and the area under the curve (AUC) of the receiver operating characteristic (ROC) curve were calculated to estimate the timing of TV incidence. 2) We analysed the clinical pregnancy rates of blastocysts with TVs treated by AH compared to those of blastocysts by C-IVF not subjected to AH.
Participants/materials, setting, methods
This study included 821 transferred frozen blastocysts ranging from March 2018 to November 2019. The embryos were cultured in a dry incubator after insemination by ICSI or C-IVF. Blastocyst freezing conditions were set at day5 to day7 with a diameter of more than 150 μm in inner diameter of zona pellucida, and this was measured before freezing. The ROC curve was performed using EZR statistical analysis software.
Main results and the role of chance
1) The incidence of TVs in blastocysts by ICSI and C-IVF was 27.5% (117/424) and 14.6% (58/397) respectively. The rate of the incidence of TVs in blastocysts inseminated by ICSI and C-IVF; 8.6% (12/140) and 0.95% (1/105) in 150–159 μm, 12.7% (14/110) and 8.2% (6/73) in 160–169 μm, 40.6% (28/69) and 10.5% (6/57) in 170–179 μm, 55.6% (30/54) and 25.5% (13/51) in 180–189 μm, 66.7% (20/30) and 35.7% (10/28) in 190–199 μm, and 68.4% (13/19) and 26.8% (22/82) in the diameter of more than 200 μm. The cut-off value of the ROC curve was respectively 170 μm (sensitivity 78.6% and specificity 73.0%) and 176 μm (sensitivity 84.5% and specificity 59.6%) in the diameter; the AUC was 0.8 [95%CI:0.752–0.848] and 0.74 [95%CI:0.687–0.793] respectively. 2) The clinical pregnancy rate of TVs blastocyst vs C-IVF blastocyst was 52.7% (88/167) vs 57.8% (37/64) respectively. There is no significant difference between the two clinical pregnancy rates (P = 0.556).
Limitations, reasons for caution
The findings of this study have to be seen in light of some limitations. Since this study aimed to analyse the incidence of TVs based on blastocyst size, we did not take into account the grade according to the Gardner classification and the number of trophectoderm cells.
Wider implications of the findings: Blastocysts inseminated by ICSI and C-IVF were highly likely to have TVs above 170 μm and 176 μm respectively. The clinical pregnancy rates of the blastocyst with TV treated by AH was similar to those of the C-IVF blastocyst.
Trial registration number
Not applicable
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Affiliation(s)
- N Nakajima
- Yamashita Shonan Yume Clinic, Embryologist, Fujisawa city- Kanagawa, Japan
| | - H Kawano
- Yamashita Shonan Yume Clinic, Embryologist, Fujisawa city- Kanagawa, Japan
| | - Y Kai
- Reproductive research center in Yamashita Shonan Yume Clinic, Researcher, Fujisawa city, Japan
| | - A Takai
- Yamashita Shonan Yume Clinic, Embryologist, Fujisawa city- Kanagawa, Japan
| | - M Abe
- Yamashita Shonan Yume Clinic, Embryologist, Fujisawa city- Kanagawa, Japan
| | - Y Iimura
- Yamashita Shonan Yume Clinic, Embryologist, Fujisawa city- Kanagawa, Japan
| | - M Cheng
- Yamashita Shonan Yume Clinic, Embryologist, Fujisawa city- Kanagawa, Japan
| | - M Yoshida
- Yamashita Shonan Yume Clinic, Physician, Fujisawa city- Kanagawa, Japan
| | - N Yamashita
- Yamashita Shonan Yume Clinic, Physician, Fujisawa city- Kanagawa, Japan
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31
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Lu AJ, Cheng M, Dong CX, Guo HW, Cao BZ, Hu HQ. [A clinical and pathological report of delayed encephalopathy after heat stroke]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2021; 39:450-452. [PMID: 34218565 DOI: 10.3760/cma.j.cn121094-20200413-00183] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the clinical manifestations, dynamic neuroimaging changes and brain histopathologic characteristics of a patient with delayed encephalopathy after heat stroke. Methods: In October 2019, the clinical manifestations, electroencephalogram, cerebrospinal fluid, imaging changes and brain histopathological characteristics of a patient with brain damage caused by heat stroke were retrospectively analyzed. Results: The patient was a 40-year-old male who suddenly appeared dizziness, unconscious, high fever when working in the high temperature environment. The EEG showed diffuse slow wave activity. Early CT was normal, and abnormal signals gradually appeared in the basal ganglia region of the thalamus after a few days. In the late, the MRI found a large area of abnormal signals under the cerebral cortex, and white matter was involved. Pathological examination of brain biopsy showed that cortical neuron loss, loose white matter changes, and significant demyelination changes, while no inflammatory cell infiltration was observed in subarachnoid space, meninges, and dermal white matter. Conclusion: Imaging examination dynamic changes of the delayed encephalopathy is important in the heat stroke, and the main pathological manifestation is demyelination.
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Affiliation(s)
- A J Lu
- WeiFang Medical University, Weifang 261053, China Department of Neurology, the 960th Hospital of PLA, Jinan 250031, China
| | - M Cheng
- Department of Neurology, the 960th Hospital of PLA, Jinan 250031, China
| | - C X Dong
- Department of Neurology, the 960th Hospital of PLA, Jinan 250031, China
| | - H W Guo
- Department of Neurology, the 960th Hospital of PLA, Jinan 250031, China
| | - B Z Cao
- Department of Neurology, the 960th Hospital of PLA, Jinan 250031, China
| | - H Q Hu
- Department of Neurology, the 960th Hospital of PLA, Jinan 250031, China
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32
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Roy S, Cheng M, Chang S, Moore J, De Luca G, Nawab S, De Luca C. A Combined sEMG and Accelerometer System for Monitoring Functional Activity in Stroke. IEEE Trans Neural Syst Rehabil Eng 2021; PP. [PMID: 34077365 DOI: 10.1109/tnsre.2009.2039597] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Remote monitoring of physical activity using bodyworn sensors provides an alternative to assessment of functional independence by subjective, paper-based questionnaires. This study investigated the classification accuracy of a combined surface electromyographic (sEMG) and accelerometer (ACC) sensor system for monitoring activities of daily living in patients with stroke. sEMG and ACC data were recorded from 10 hemi paretic patients while they carried out a sequence of 11 activities of daily living (Identification tasks), and 10 activities used to evaluate misclassification errors (non-Identification tasks). The sEMG and ACC sensor data were analyzed using a multilayered neural network and an adaptive neuro-fuzzy inference system to identify the minimal sensor configuration needed to accurately classify the identification tasks, with a minimal number of misclassifications from the non-Identification tasks. The results demonstrated that the highest sensitivity and specificity for the identification tasks was achieved using a subset of 4 ACC sensors and adjacent sEMG sensors located on both upper arms, one forearm, and one thigh, respectively. This configuration resulted in a mean sensitivity of 95.0 %, and a mean specificity of 99.7 % for the identification tasks, and a mean misclassification error of < 10% for the non-Identification tasks. The findings support the feasibility of a hybrid sEMG and ACC wearable sensor system for automatic recognition of motor tasks used to assess functional independence in patients with stroke.
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Cheng M, Janzekovic J, Mohseni M, Medeiros Savi F, McGovern J, Galloway G, Wong C, Saifzadeh S, Wagels M, Hutmacher DW. A Preclinical Animal Model for the Study of Scaffold-Guided Breast Tissue Engineering. Tissue Eng Part C Methods 2021; 27:366-377. [PMID: 33906394 DOI: 10.1089/ten.tec.2020.0387] [Citation(s) in RCA: 3] [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] [Indexed: 11/12/2022] Open
Abstract
Scaffold-guided breast tissue engineering (SGBTE) has the potential to transform reconstructive breast surgery. Currently, there is a deficiency in clinically relevant animal models suitable for studying novel breast tissue engineering concepts. To date, only a small number of large animal studies have been conducted and characterization of these large animal models is poorly described in the literature. Addressing this gap in the literature, this publication comprehensively describes our original porcine model based on the current published literature and the experience gained from previous animal studies conducted by our research group. In a long-term experiment using our model, we investigated our SGBTE approach by implanting 60 additively manufactured bioresorbable scaffolds under the panniculus carnosus muscle along the flanks of 12 pigs over 12 months. Our model has the flexibility to compare multiple treatment modalities where we successfully investigated scaffolds filled with various treatments of immediate and delayed fat graft and augmentation with platelet rich plasma. No wound complications were observed using our animal model. We were able to grow clinically relevant volumes of soft tissue, which validates our model. Our preclinical large animal model is ideally suited to assess different scaffold or hydrogel-driven soft tissue regeneration strategies. Impact statement The ability to regenerate soft tissue through scaffold-guided tissue engineering concepts can transform breast reconstructive surgery. We describe an original preclinical large animal model to study controlled and reproducible scaffold-guided breast tissue engineering (SGBTE) concepts. This model features the flexibility to investigate multiple treatment conditions per animal, making it an efficient model. We have validated our model with a long-term experiment over 12 months, which exceeds other shorter published studies. Our SGBTE concept provides a more clinically relevant approach in terms of breast reconstruction. Future studies using this model will support the translation of SGBTE into clinical practice.
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Affiliation(s)
- Matthew Cheng
- Center for Regenerative Medicine, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Australia.,Plastic and Reconstructive Surgery, Princess Alexandra Hospital, Brisbane, Australia
| | - Jan Janzekovic
- Center for Regenerative Medicine, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Australia
| | - Mina Mohseni
- Center for Regenerative Medicine, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Australia
| | - Flavia Medeiros Savi
- Center for Regenerative Medicine, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Australia
| | - Jacqui McGovern
- Center for Regenerative Medicine, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Australia.,School of Mechanical, Medical and Process Engineering, Science and Engineering Faculty, Queensland University of Technology, Brisbane, Australia.,School of Biomedical Sciences, Faculty of Health, Queensland University of Technology, Brisbane, Australia
| | - Graham Galloway
- Imaging Technology, Translational Research Institute, Brisbane, Australia
| | - Clement Wong
- Breast and Endocrine Surgery, Royal Brisbane and Women's Hospital, Brisbane, Australia
| | - Siamak Saifzadeh
- Center for Regenerative Medicine, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Australia
| | - Michael Wagels
- Center for Regenerative Medicine, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Australia.,Plastic and Reconstructive Surgery, Princess Alexandra Hospital, Brisbane, Australia.,Herston Biofabrication Institute, Royal Brisbane and Women's Hospital, Brisbane, Australia
| | - Dietmar W Hutmacher
- Center for Regenerative Medicine, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Australia.,School of Mechanical, Medical and Process Engineering, Science and Engineering Faculty, Queensland University of Technology, Brisbane, Australia.,School of Biomedical Sciences, Faculty of Health, Queensland University of Technology, Brisbane, Australia.,ARC ITTC in Additive Biomanufacturing, Institute of Health and Biomedical Innovation, Queensland University of Technology, Brisbane, Australia
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Wei XJ, Zhang YN, Cheng M, Su CL, Zhang PP, Gu WR, Chen GY. [Adrenocortical oncocytic tumors: a clinicopathological analysis of 44 cases]. Zhonghua Bing Li Xue Za Zhi 2021; 50:500-504. [PMID: 33915658 DOI: 10.3760/cma.j.cn112151-20210209-00142] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To study the clinicopathological features of adrenocortical oncocytic tumors (ACOT) and to compare the diagnostic values of Lin-Weiss-Bisceglia (LWB) score and Helsinki score. Methods: Forty-four cases of ACOT diagnosed at Beijing Friendship Hospital, China from March 2008 to July 2019 were histologically analyzed to evaluate their malignant potential (benign versus malignant) according to two scoring criteria. Immunohistochemical studies (EnVision method) were also used. Results: There were 23 males and 21 females with an average age of 46 years. Histologically, the tumor cells were arranged in trabecular, chrysanthemum-shaped, glandular and microcapsule structures, while clear cells were rare or absent. Most of the tumor cells were moderately atypical, and intranuclear inclusion bodies were conspicuous. Immunohistochemical staining showed that tumor cells were positive for Melan A, inhibin, Syn and calretinin. The average proliferation index was 3% in benign ACOT, about 5% in ACOT of malignant potential, and>20% in malignant ACOT. According to the LWB score, 61.4% (27/44) of the tumors were on the left side and had multiple lesions. The percentage of benign ACOT was 59.1% (26/44), malignant potential 6.8% (3/44), malignant 34.1% (15/44), respectively. Among the 15 malignant ACOT, the mitotic figures>5/50 HPF were found in 13 cases, necrosis in 11 cases and capsule invasion in 10 cases. According to the Helsinki score, 65.9% (29/44) of the tumors were benign, and 34.1% (15/44) were malignant. There was no significant difference between the two scoring standards (P>0.05). During the follow-up of 9 to 144 months, 31 patients survived without disease and 13 patients relapsed or had metastasis. Conclusions: ACOT more likely be benign than malignant. The left side is more common. Malignant tumors are prone to recurrence and metastasis. The morphological parameters (high mitotic index, necrosis, and capsular invasion) in the LWB scoring standards combined with immunohistochemical parameters (Ki-67) in the Helsinki score are helpful for the diagnosis of malignant ACOT and are important predictors of poor prognosis.
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Affiliation(s)
- X J Wei
- Department of Pathology, Beijing Friendship Hospital, Capital Medical University, Beijing 100050,China
| | - Y N Zhang
- Department of Pathology, Beijing Friendship Hospital, Capital Medical University, Beijing 100050,China
| | - M Cheng
- Department of Pathology, Beijing Friendship Hospital, Capital Medical University, Beijing 100050,China
| | - C L Su
- Department of Pathology, Beijing Friendship Hospital, Capital Medical University, Beijing 100050,China
| | - P P Zhang
- Department of Pathology, Beijing Friendship Hospital, Capital Medical University, Beijing 100050,China
| | - W R Gu
- Department of Pathology, Beijing Friendship Hospital, Capital Medical University, Beijing 100050,China
| | - G Y Chen
- Department of Pathology, Beijing Friendship Hospital, Capital Medical University, Beijing 100050,China
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35
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Wang S, Cheng M, Zhou L, Dai Y, Dang Y, Ji X. QSPR modelling for intrinsic viscosity in polymer-solvent combinations based on density functional theory. SAR QSAR Environ Res 2021; 32:379-393. [PMID: 33823697 DOI: 10.1080/1062936x.2021.1902387] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2020] [Accepted: 03/09/2021] [Indexed: 06/12/2023]
Abstract
Linear and nonlinear quantitative structure-property relationship (QSPR) models were developed based on a dataset with 65 polymer-solvent combinations. Seven quantum chemical descriptors, dipole moment, hardness, chemical potential, electrophilicity index, total energy, HOMO and LUMO orbital energies, were calculated with density functional theory at the B3LYP/6-31 G(d) level for polymers and solvents. Considering the strong correlation between intrinsic viscosity and weight, size, shape as well as topological structure of polymers and solvents, topological descriptors were also applied in this work. Meanwhile, the most appropriate polymer structure representation was investigated by considering 1-5 monomeric repeating units. The molecular descriptors were first screened by using the genetic algorithms-multiple linear regression (GA-MLR), with coefficient of determinations (r2) of 0.78 and 0.83 for the training set and the prediction set, respectively. The support vector machine model (SVM) model based on the selected descriptors subset showed a r2 value of 0.95 for the training set and 0.93 for the prediction set. All statistical results suggest that the established QSPR models have good predictability. Furthermore, a new test set obtained from the literature was used for further validation. The r2 values were 0.81 for the MLR model and 0.90 for the SVM model.
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Affiliation(s)
- S Wang
- Department of Chemical Engineering, Sichuan University, Chengdu, PR China
| | - M Cheng
- Department of Chemical Engineering, Sichuan University, Chengdu, PR China
| | - L Zhou
- Department of Chemical Engineering, Sichuan University, Chengdu, PR China
| | - Y Dai
- Department of Chemical Engineering, Sichuan University, Chengdu, PR China
| | - Y Dang
- Department of Chemical Engineering, Sichuan University, Chengdu, PR China
| | - X Ji
- Department of Chemical Engineering, Sichuan University, Chengdu, PR China
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36
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Fehr D, Lebouché B, Ruppenthal L, Brownc M, Obasc N, Bourbonnière E, Girouard J, Massicotte A, Jenabian MA, Almomen AA, Frenette C, de Pokomandy A, Cox J, Giannakis A, Cheng M, Kronfli N, Tsoukas C, Zahedi N, Szabo J, Dehghani K, Brouillette MJ, Falutz J, Turner H, Hamel A, Duchesneau C, Lanthier-Brun J, Klein M, Routy JP, Costiniuk CT. Characterization of people living with HIV in a Montreal-based tertiary care center with COVID-19 during the first wave of the pandemic. AIDS Care 2021; 34:663-669. [PMID: 33779425 DOI: 10.1080/09540121.2021.1904500] [Citation(s) in RCA: 3] [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] [Indexed: 10/21/2022]
Abstract
People living with HIV (PLWH) often have worse health outcomes compared to HIV-uninfected individuals. We characterized PLWH followed at a tertiary care clinic in Montreal who acquired COVID-19 and described their outcomes during the first wave of the pandemic. A retrospective chart review was performed for PLWH followed at the Chronic Viral Illness Service with a positive COVID-19 nasopharyngeal PCR or symptoms suggestive of COVID-19 between 1 March and 15 June 2020. Data on demographics, socioeconomic status, co-morbidities and severity of COVID-19 and outcomes were extracted. Of 1702 individuals, 32 (1.9%) had a positive COVID-19 test (n = 24) or symptoms suspicious for COVID-19 (n = 3). Median age was 52 years [IQR 40, 62]. Nearly all (97%) earned $34,999 Canadian dollars or less. Eleven (34%) individuals worked in long-term care (LTC) homes while 5 (6%) lived in LTC homes. Median CD4 count was 566 cells/mm3 [347, 726] and six had detectable plasma HIV viral loads. Median duration of HIV was 17 years [7, 22] and 30 individuals had been prescribed antiretroviral therapy. Five persons were asymptomatic. Of symptomatic persons, 21 (12%), 1 (4%) and 3 (12%) individuals had mild, moderate and severe disease, respectively. Three individuals died with COVID-19. In one case, the cause of death was due to COVID-19, whereas in the other two cases, the individuals died with positive COVID-19 test results but the immediate cause of death is unclear. PLWH who tested positive for COVID-19 had low socioeconomic status and had employment or living conditions that put them at high risk. PLWH may be disproportionately impacted by the social determinants of health which predispose them to COVID-19.
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Affiliation(s)
- Derek Fehr
- Department of Psychiatry, McGill University Health Centre, Royal Victoria Hospital: Glen Site, Montreal, Canada
| | - Bertrand Lebouché
- Department of Family Medicine, McGill University Health Centre, Royal Victoria Hospital: Glen Site, Montreal, Canada.,Division of Infectious Diseases/Chronic Viral Illness Service, McGill University Health Centre, Royal Victoria Hospital: Glen Site, Montreal, Canada.,Infectious Diseases and Immunity in Global Health, Research Institute of McGill University Health Centre, Montreal, Canada
| | - Luciana Ruppenthal
- Division of Infectious Diseases/Chronic Viral Illness Service, McGill University Health Centre, Royal Victoria Hospital: Glen Site, Montreal, Canada.,Department of Nursing, McGill University Health Centre, Montreal, Canada.,Royal Victoria Hospital: Glen Site, Montreal, Canada
| | - Melodie Brownc
- Department of Nursing, McGill University Health Centre, Montreal, Canada.,Royal Victoria Hospital: Glen Site, Montreal, Canada
| | - Nancy Obasc
- Department of Nursing, McGill University Health Centre, Montreal, Canada.,Royal Victoria Hospital: Glen Site, Montreal, Canada
| | - Emilie Bourbonnière
- Division of Infectious Diseases/Chronic Viral Illness Service, McGill University Health Centre, Royal Victoria Hospital: Glen Site, Montreal, Canada.,Department of Nursing, McGill University Health Centre, Montreal, Canada.,Royal Victoria Hospital: Glen Site, Montreal, Canada
| | - Josee Girouard
- Division of Infectious Diseases/Chronic Viral Illness Service, McGill University Health Centre, Royal Victoria Hospital: Glen Site, Montreal, Canada.,Infectious Diseases and Immunity in Global Health, Research Institute of McGill University Health Centre, Montreal, Canada
| | - Angie Massicotte
- Division of Infectious Diseases/Chronic Viral Illness Service, McGill University Health Centre, Royal Victoria Hospital: Glen Site, Montreal, Canada.,Infectious Diseases and Immunity in Global Health, Research Institute of McGill University Health Centre, Montreal, Canada
| | - Mohammad-Ali Jenabian
- Department of Biological Sciences, Université du Québec à Montréal, Montreal, Canada.,Department of Microbiology & Immunology, McGill University, Montreal, Canada
| | - Abdul-Aziz Almomen
- Department of Medical Microbiology, McGill University Health Centre, Royal Victoria Hospital: Glen Site, Montreal, Canada
| | - Charles Frenette
- Division of Infectious Diseases/Chronic Viral Illness Service, McGill University Health Centre, Royal Victoria Hospital: Glen Site, Montreal, Canada.,Department of Medical Microbiology, McGill University Health Centre, Royal Victoria Hospital: Glen Site, Montreal, Canada
| | - Alexandra de Pokomandy
- Department of Family Medicine, McGill University Health Centre, Royal Victoria Hospital: Glen Site, Montreal, Canada.,Division of Infectious Diseases/Chronic Viral Illness Service, McGill University Health Centre, Royal Victoria Hospital: Glen Site, Montreal, Canada.,Infectious Diseases and Immunity in Global Health, Research Institute of McGill University Health Centre, Montreal, Canada
| | - Joseph Cox
- Department of Family Medicine, McGill University Health Centre, Royal Victoria Hospital: Glen Site, Montreal, Canada.,Division of Infectious Diseases/Chronic Viral Illness Service, McGill University Health Centre, Royal Victoria Hospital: Glen Site, Montreal, Canada.,Infectious Diseases and Immunity in Global Health, Research Institute of McGill University Health Centre, Montreal, Canada
| | - Andreas Giannakis
- Division of Infectious Diseases/Chronic Viral Illness Service, McGill University Health Centre, Royal Victoria Hospital: Glen Site, Montreal, Canada
| | - Matthew Cheng
- Division of Infectious Diseases/Chronic Viral Illness Service, McGill University Health Centre, Royal Victoria Hospital: Glen Site, Montreal, Canada.,Infectious Diseases and Immunity in Global Health, Research Institute of McGill University Health Centre, Montreal, Canada
| | - Nadine Kronfli
- Division of Infectious Diseases/Chronic Viral Illness Service, McGill University Health Centre, Royal Victoria Hospital: Glen Site, Montreal, Canada.,Infectious Diseases and Immunity in Global Health, Research Institute of McGill University Health Centre, Montreal, Canada
| | - Christos Tsoukas
- Division of Infectious Diseases/Chronic Viral Illness Service, McGill University Health Centre, Royal Victoria Hospital: Glen Site, Montreal, Canada.,Infectious Diseases and Immunity in Global Health, Research Institute of McGill University Health Centre, Montreal, Canada.,Department of Microbiology & Immunology, McGill University, Montreal, Canada
| | - Navid Zahedi
- Division of Infectious Diseases/Chronic Viral Illness Service, McGill University Health Centre, Royal Victoria Hospital: Glen Site, Montreal, Canada
| | - Jason Szabo
- Department of Family Medicine, McGill University Health Centre, Royal Victoria Hospital: Glen Site, Montreal, Canada.,Division of Infectious Diseases/Chronic Viral Illness Service, McGill University Health Centre, Royal Victoria Hospital: Glen Site, Montreal, Canada
| | - Kianoush Dehghani
- Department of Family Medicine, McGill University Health Centre, Royal Victoria Hospital: Glen Site, Montreal, Canada.,Infectious Diseases and Immunity in Global Health, Research Institute of McGill University Health Centre, Montreal, Canada
| | - Marie-Josee Brouillette
- Department of Psychiatry, McGill University Health Centre, Royal Victoria Hospital: Glen Site, Montreal, Canada
| | - Julian Falutz
- Division of Infectious Diseases/Chronic Viral Illness Service, McGill University Health Centre, Royal Victoria Hospital: Glen Site, Montreal, Canada
| | - Howard Turner
- Division of Infectious Diseases/Chronic Viral Illness Service, McGill University Health Centre, Royal Victoria Hospital: Glen Site, Montreal, Canada
| | - Alexandra Hamel
- Division of Infectious Diseases/Chronic Viral Illness Service, McGill University Health Centre, Royal Victoria Hospital: Glen Site, Montreal, Canada
| | - Claire Duchesneau
- Department of Social Work, McGill University Health Centre, Montreal, Canada
| | | | - Marina Klein
- Division of Infectious Diseases/Chronic Viral Illness Service, McGill University Health Centre, Royal Victoria Hospital: Glen Site, Montreal, Canada.,Infectious Diseases and Immunity in Global Health, Research Institute of McGill University Health Centre, Montreal, Canada
| | - Jean-Pierre Routy
- Division of Infectious Diseases/Chronic Viral Illness Service, McGill University Health Centre, Royal Victoria Hospital: Glen Site, Montreal, Canada.,Infectious Diseases and Immunity in Global Health, Research Institute of McGill University Health Centre, Montreal, Canada.,Department of Microbiology & Immunology, McGill University, Montreal, Canada.,Division of Hematology, Department of Medicine, McGill University Health Centre, Royal Victoria Hospital: Glen Site, Montreal, Canada
| | - Cecilia T Costiniuk
- Department of Family Medicine, McGill University Health Centre, Royal Victoria Hospital: Glen Site, Montreal, Canada.,Infectious Diseases and Immunity in Global Health, Research Institute of McGill University Health Centre, Montreal, Canada.,Department of Microbiology & Immunology, McGill University, Montreal, Canada
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Chica DG, Iyer AK, Cheng M, Ryan KM, Krantz P, Laing C, Dos Reis R, Chandrasekhar V, Dravid VP, Kanatzidis MG. P 2S 5 Reactive Flux Method for the Rapid Synthesis of Mono- and Bimetallic 2D Thiophosphates M 2-xM' xP 2S 6. Inorg Chem 2021; 60:3502-3513. [PMID: 33635075 DOI: 10.1021/acs.inorgchem.0c03577] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/16/2023]
Abstract
We report a reactive flux technique using the common reagent P2S5 and metal precursors developed to circumvent the synthetic bottleneck for producing high-quality single- and mixed-metal two-dimensional (2D) thiophosphate materials. For the monometallic compound, M2P2S6 (M = Ni, Fe, and Mn), phase-pure materials were quickly synthesized and annealed at 650 °C for 1 h. Crystals of dimensions of several millimeters were grown for some of the metal thiophosphates using optimized heating profiles. The homogeneity of the bimetallic thiophosphates MM'P2S6 (M, M' = Ni, Fe, and Mn) was elucidated using energy-dispersive X-ray spectroscopy and Rietveld refinement. The quality of the selected materials was characterized by transmission electron microscopy and atomic force microscopy measurements. We report two novel bimetallic thiophosphates, MnCoP2S6 and FeCoP2S6. The Ni2P2S6 and MnNiP2S6 flux reactions were monitored in situ using variable-temperature powder X-ray diffraction to understand the formation reaction pathways. The phases were directly formed in a single step at approximately 375 °C. The work functions of the semiconducting materials were determined and ranged from 5.28 to 5.72 eV.
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Affiliation(s)
- Daniel G Chica
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Abishek K Iyer
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Matthew Cheng
- Department of Material Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
| | - Kevin M Ryan
- Department of Physics and Astronomy, Northwestern University, Evanston, Illinois 60208, United States
| | - Patrick Krantz
- Department of Physics and Astronomy, Northwestern University, Evanston, Illinois 60208, United States
| | - Craig Laing
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Roberto Dos Reis
- Department of Material Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States.,Northwestern University Atomic and Nanoscale Characterization Experimental (NUANCE) Center, Northwestern University, Evanston, Illinois 60208, United States
| | - Venkat Chandrasekhar
- Department of Physics and Astronomy, Northwestern University, Evanston, Illinois 60208, United States
| | - Vinayak P Dravid
- Department of Material Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States.,Northwestern University Atomic and Nanoscale Characterization Experimental (NUANCE) Center, Northwestern University, Evanston, Illinois 60208, United States.,International Institute for Nanotechnology (IIN), Northwestern University, Evanston, Illinois 60208, United States
| | - Mercouri G Kanatzidis
- Department of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
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38
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Wang L, Xue J, Wei F, Zheng G, Cheng M, Liu S. Chemopreventive effect of galangin against benzo(a)pyrene-induced stomach tumorigenesis through modulating aryl hydrocarbon receptor in Swiss albino mice. Hum Exp Toxicol 2021; 40:1434-1444. [PMID: 33663268 DOI: 10.1177/0960327121997979] [Citation(s) in RCA: 3] [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] [Indexed: 12/14/2022]
Abstract
The present study was aimed to evaluate the chemopreventive potential of galangin against benzo(a)pyrene (BaP)-induced stomach carcinogenesis in Swiss albino mice. Stomach cancer was induced in experimental mice using BaP oral administration. The mice were treated with galangin (10 mg/kg b.wt.) before and during BaP administration. Oral administration of galangin at a dose of 10 mg/kg b.wt. significantly (p < 0.05) prevented the tumor incidence, tumor volume in the experimental animals. Further, galangin pretreatment prevents BaP-induced lipid peroxidation and restores BaP-mediated loss of cellular antioxidants status. It has also been found that galangin prevents BaP-induced activation of phase I detoxification enzymes. Furthermore, galangin pretreatment prevented the BaP-induced overexpression of cytochrome P450s isoform genes (CYP1A1, CYP1B1), aryl hydrocarbon receptor system (AhR, ARNT), transcriptional activators (CBP/p300, NF-kB), tumor growth factors, proto-oncogenes, invasion markers (TGFB, SRC-1, MYC, iNOS, MMP2, MMP9) and Phase II metabolic isoenzyme genes (GST) in the stomach tissue homogenate when compared to the control groups. The western blot results confirm that galangin (10 mg/kg. b.wt.) treatment significantly prevented the BaP-mediated expression of ArR, ARNT, and CYP1A1 proteins in the mouse stomach tissue. Therefore, the present results confirm that galangin prevents BaP-induced stomach carcinogenesis probably through modulating ArR and ARNT expression in the experimental mice.
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Affiliation(s)
- L Wang
- Department of Gastrointestinal Surgery, the Fifth Affiliated Hospital of 91593Xinjiang Medical University, Urumqi, Xinjiang, China.,Contributed equally
| | - J Xue
- Department of Blood Transfusion, The Fifth Affiliated Hospital, 26469Sun Yat-sen University, Zhuhai, Guangdong, China.,Contributed equally
| | - F Wei
- Department of Gastroenterology, Central Hospital of Haining, Haining City, Zhejiang, China
| | - G Zheng
- Department of Gastrointestinal Surgery, the Fifth Affiliated Hospital of 91593Xinjiang Medical University, Urumqi, Xinjiang, China
| | - M Cheng
- Department of General Surgery, Shanghai Tianyou Hospital, 12476Tongji University, Shanghai, China
| | - S Liu
- Department of Gastrointestinal Surgery, 499782Shengli Oilfield Central Hospital, Dongying City, Shandong, China
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Li X, Cheng M, Sun Q, Wu Y, Zhang X, Hou J. P59.04 Sex-Related Differences in Genomic and Immune Profiling of Lung Adenocarcinoma. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.955] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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40
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Qin YS, Jiang H, Wang CF, Cheng M, Wang LL, Huang MY, Zhao QX, Jiang HH. Physicochemical and functional properties of goat milk whey protein and casein obtained during different lactation stages. J Dairy Sci 2021; 104:3936-3946. [PMID: 33551171 DOI: 10.3168/jds.2020-19454] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/11/2020] [Accepted: 10/29/2020] [Indexed: 11/19/2022]
Abstract
During lactation, goat milk contains colostrum, transitional milk, mature milk, and end milk. The protein present in goat milk during different lactation periods has different characteristics. This study aimed to characterize the protein profile of goat milk samples obtained at different lactation stages and to identify changes in the physicochemical and functional properties of whey protein and casein from goat milk collected at 1, 3, 15, 100, and 200 d after calving. The results demonstrated that the lactation period had a great influence on the physicochemical and functional properties of goat milk whey protein and casein, especially the protein properties of colostrum on the first day after delivery. The denaturation temperature, hydrophobicity, and turbidity of whey protein were significantly higher on the first day postpartum than at other lactation periods. Correspondingly, the colostrum whey protein also had better functional properties, such as emulsification, oil holding capacity, and foaming properties on the first day postpartum than at other lactation periods. For casein, the turbidity, particle size, water holding capacity, and foaming properties on the first day after delivery were significantly higher than those at other lactation periods, whereas the denaturation temperature, oil holding capacity, and emulsification followed the opposite trend. For both whey protein and casein, the 2 indicators of emulsifying properties, namely, emulsifying activity index and the emulsion stability, also followed an opposite trend relative to lactation stage, whereas the changes in foaming capacity with the lactation period were completely consistent with the change of foaming stability. These findings could provide useful information for the use of goat milk whey protein and casein obtained during different lactation stages in the dairy industry.
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Affiliation(s)
- Y S Qin
- College of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China 250353
| | - H Jiang
- College of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China 250353
| | - C F Wang
- College of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China 250353.
| | - M Cheng
- Qingdao Research Institute of Husbandry and Veterinary, Qingdao, China 266100
| | - L L Wang
- College of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China 250353
| | - M Y Huang
- College of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China 250353
| | - Q X Zhao
- College of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China 250353
| | - H H Jiang
- College of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China 250353
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41
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Russell JA, Marshall JC, Slutsky A, Murthy S, Sweet D, Lee T, Singer J, Patrick DM, Du B, Peng Z, Cheng M, Burns KD, Harhay MO. Study protocol for a multicentre, prospective cohort study of the association of angiotensin II type 1 receptor blockers on outcomes of coronavirus infection. BMJ Open 2020; 10:e040768. [PMID: 33293316 PMCID: PMC7722825 DOI: 10.1136/bmjopen-2020-040768] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
INTRODUCTION The COVID-19 epidemic grows and there are clinical trials of antivirals. There is an opportunity to complement these trials with investigation of angiotensin II type 1 receptor blockers (ARBs) because an ARB (losartan) was effective in murine influenza pneumonia. METHODS AND ANALYSIS Our innovative design includes: ARBs; alignment with the WHO Ordinal Scale (primary endpoint) to align with other COVID-19 trials; joint longitudinal analysis; and predictive biomarkers (angiotensins I, 1-7, II and ACE1 and ACE2). Our hypothesis is: ARBs decrease the need for hospitalisation, severity (need for ventilation, vasopressors, extracorporeal membrane oxygenation or renal replacement therapy) or mortality of hospitalised COVID-19 infected adults. Our two-pronged multicentre pragmatic observational cohort study examines safety and effectiveness of ARBs in (1) hospitalised adult patients with COVID-19 and (2) out-patients already on or not on ARBs. The primary outcome will be evaluated by ordinal logistic regression and main secondary outcomes by both joint longitudinal modelling analyses. We will compare rates of hospitalisation of ARB-exposed versus not ARB-exposed patients. We will also determine whether continuing ARBs or not decreases the primary outcome. Based on published COVID-19 cohorts, assuming 15% of patients are ARB-exposed, a total sample size of 497 patients can detect a proportional OR of 0.5 (alpha=0.05, 80% power) comparing WHO scale of ARB-exposed versus non-ARB-exposed patients. ETHICS AND DISSEMINATION This study has core institution approval (UBC Providence Healthcare Research Ethics Board) and site institution approvals (Health Research Ethics Board, University of Alberta; Comite d'etique de la recerche, CHU Sainte Justine (for McGill University and University of Sherbrook); Conjoint Health Research Ethics Board, University of Calgary; Queen's University Health Sciences & Affiliated Hospitals Research Ethics Board; Research Ethics Board, Sunnybrook Health Sciences Centre; Veritas Independent Research Board (for Humber River Hospital); Mount Sinai Hospital Research Ethics Board; Unity Health Toronto Research Ethics Board, St. Michael's Hospital). Results will be disseminated by peer-review publication and social media releases. TRIAL REGISTRATION NUMBER NCT04510623.
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Affiliation(s)
- James A Russell
- Medicine, The University of British Columbia Faculty of Medicine, Vancouver, British Columbia, Canada
| | | | - Arthur Slutsky
- Medicine, University of Toronto Faculty of Medicine, Toronto, Ontario, Canada
| | - Srinivas Murthy
- Paediatrics, University of British Columbia, Vancouver, British Columbia, Canada
| | - Dave Sweet
- Emergency Medicine, The University of British Columbia Faculty of Medicine, Vancouver, British Columbia, Canada
| | - Terry Lee
- Population and Public Health, University of British Columbia, Vancouver, British Columbia, Canada
| | - Joel Singer
- Population and Public Health, University of British Columbia, Vancouver, British Columbia, Canada
| | - David M Patrick
- Population and Public Health, University of British Columbia, Vancouver, British Columbia, Canada
| | - Bin Du
- Medical ICU, Peking University, Beijing, China
| | - Zhiyong Peng
- Medicine, Wuhan University Zhongnan Hospital, Wuhan, China
| | - Matthew Cheng
- Department of Medicine, McGill University, Montreal, Quebec, Canada
| | - Kevin D Burns
- Medicine, Ottawa Hospital Research Institute, Ottawa, Ontario, Canada
| | - Michael O Harhay
- Biostatistics, Epidemiology, and Informatics, University of Pennsylvania Perelman School of Medicine, Philadelphia, Pennsylvania, USA
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Chao M, Jassal S, Baker C, Tacey M, Law M, Loh S, Cheng M, Yong C, Zantuck N, Bevington E, Hyett A, Guerrieri M, Cokelek M, Brown B, Chipman M, Chew G, Yeo B, Lippey J, Neoh D, Lamoury G, Spillane A, Foley C, Kechagioglou P, Rolfo M, Foroudi F. OC-0330: Neoadjuvant breast radiotherapy for one stage mastectomy and autologous breast reconstruction. Radiother Oncol 2020. [DOI: 10.1016/s0167-8140(21)00354-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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43
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Cheng M, Fan S, Tang R, Zhang W, Hu J, Yu J, Shi D, Wang C, Wang L, Qing W, Ren Y, Su W. Evaluation of surufatinib, an orally available VEGFR, FGFR1 and CSF-1R inhibitor, in combination with immune checkpoint blockade or chemotherapy in preclinical tumor models. Eur J Cancer 2020. [DOI: 10.1016/s0959-8049(20)31132-1] [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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Cheng M, Tong W, Luo J, Li M, Liang J, Pan F, Pan J, Zheng Y, Xie X. Value of contrast-enhanced ultrasound in the diagnosis of breast US-BI-RADS 3 and 4 lesions with calcifications. Clin Radiol 2020; 75:934-941. [PMID: 32814625 DOI: 10.1016/j.crad.2020.07.017] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2020] [Accepted: 07/14/2020] [Indexed: 10/23/2022]
Abstract
AIM To evaluate the diagnostic performance of contrast-enhanced ultrasound (CEUS) for Breast Imaging-Reporting and Data System for Ultrasound (US-BI-RADS) 3 and 4 lesions with calcifications. MATERIALS AND METHODS A retrospective study of 168 breast lesions with calcifications detected on both mammography and conventional ultrasonography (US) in 152 patients were categorised as US-BI-RADS 3-4 at US between June 2009 and June 2018. CEUS scores were obtained based on a CEUS five-point scoring system. The combination of US-BI-RADS and CEUS scores created the Rerated BI-RADS (referred to as CEUS-BI-RADS). All results were compared with the histological findings. The diagnostic performances of US and CEUS-BI-RADS were compared. RESULTS The diagnostic sensitivity, specificity, and accuracy of US were 81.8% (95% confidence interval [CI]: 71.6%, 92%), 85% (95% CI: 78.4%, 91.5%), and 83.9% (95% CI: 78.4%, 89.5%), respectively, while those for CEUS-BI-RADS were 98.2% (95% CI: 94.7%, 100%), 90.3% (95% CI: 84.8%, 95.7%), and 92.9% (95% CI: 89%, 96.8%), respectively. The diagnostic sensitivity and accuracy values of CEUS-BI-RADS greatly improved compared with those of US (p=0.003 and p=0.004, respectively). The areas under the receiver operating characteristic (ROC) curves for US and CEUS-BI-RADS were 0.888 (95% CI: 0.840, 0.936) and 0.963 (95% CI: 0.936, 0.989), respectively. The diagnostic efficacy of CEUS-BI-RADS was significantly higher than that of US alone (p=0.004). CONCLUSION CEUS-BI-RADS significantly improves the diagnostic accuracy for breast US-BI-RADS 3 and 4 lesions with calcifications compared with US.
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Affiliation(s)
- M Cheng
- Department of Medical Ultrasonics, Institute of Diagnostic and Interventional Ultrasound, The First Affiliated Hospital of Sun Yat-Sen University, 58# 2nd Zhongshan Road, Guangzhou, 510080, China
| | - W Tong
- Department of Medical Ultrasonics, Institute of Diagnostic and Interventional Ultrasound, The First Affiliated Hospital of Sun Yat-Sen University, 58# 2nd Zhongshan Road, Guangzhou, 510080, China
| | - J Luo
- Department of Medical Ultrasonics, Institute of Diagnostic and Interventional Ultrasound, The First Affiliated Hospital of Sun Yat-Sen University, 58# 2nd Zhongshan Road, Guangzhou, 510080, China
| | - M Li
- Department of Medical Ultrasonics, Institute of Diagnostic and Interventional Ultrasound, The First Affiliated Hospital of Sun Yat-Sen University, 58# 2nd Zhongshan Road, Guangzhou, 510080, China
| | - J Liang
- Department of Medical Ultrasonics, Institute of Diagnostic and Interventional Ultrasound, The First Affiliated Hospital of Sun Yat-Sen University, 58# 2nd Zhongshan Road, Guangzhou, 510080, China
| | - F Pan
- Department of Medical Ultrasonics, Institute of Diagnostic and Interventional Ultrasound, The First Affiliated Hospital of Sun Yat-Sen University, 58# 2nd Zhongshan Road, Guangzhou, 510080, China
| | - J Pan
- Department of Medical Ultrasonics, Institute of Diagnostic and Interventional Ultrasound, The First Affiliated Hospital of Sun Yat-Sen University, 58# 2nd Zhongshan Road, Guangzhou, 510080, China
| | - Y Zheng
- Department of Medical Ultrasonics, Institute of Diagnostic and Interventional Ultrasound, The First Affiliated Hospital of Sun Yat-Sen University, 58# 2nd Zhongshan Road, Guangzhou, 510080, China.
| | - X Xie
- Department of Medical Ultrasonics, Institute of Diagnostic and Interventional Ultrasound, The First Affiliated Hospital of Sun Yat-Sen University, 58# 2nd Zhongshan Road, Guangzhou, 510080, China
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Cheng M, Chen W, Fang LM, Lou MZ, Jin H, Zhang B, Zang LL. Synthesis, Crystal Structure, and Anti-Gastric Cancer Activity of a Heterometallic Coordination Polymer Based on Flexible 6,6-Dithiodinicotinic Acid. J STRUCT CHEM+ 2020. [DOI: 10.1134/s0022476620060207] [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: 11/23/2022]
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Cheng M, Yuan X, Li S, Chen C, Zhang Z, Yu Z, Liu Y, Lu Z, Xiong R. Regulating a novel domain wall oscillator with a steady frequency by changing the current density. Nanotechnology 2020; 31:235201. [PMID: 32059196 DOI: 10.1088/1361-6528/ab7676] [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] [Indexed: 06/10/2023]
Abstract
The dynamic behaviors of a domain wall (DW) pinned by a notch pair or a single notch with different notch depths are studied. It is found that, in a relatively large current density range, the oscillation frequency of the DW becomes frozen and independent of current density when pinned by a notch pair with a notch depth larger than 12 nm. The current density range for freezing the frequency can be tuned by the notch depth. A chain of notch pairs is designed to introduce more pinned DWs into the nanowire. By increasing the number of DWs and applying a proper magnetic field, the oscillation amplitude can be greatly enhanced. Our finding suggests that nanowires with a series of deep notch pairs may have an important application in the development of DW based spin-transfer nano-oscillators with a high tolerance for current fluctuation.
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Affiliation(s)
- M Cheng
- The State Key Laboratory of Refractories and Metallurgy, Wuhan University of Science and Technology, Wuhan 430081, People's Republic of China. Key Laboratory of Artificial Micro- and Nano-structures of Ministry of Education, School of Physics and Technology, Wuhan University, Wuhan 430072, People's Republic of China
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Jia J, Zheng H, Cheng M, Zhao J, Song J, Song G, He T, Wu Y. PV-113: Development and Validation of the Intensity-modulated Accurate Radiotherapy System KylinRay-IMRT. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(20)30550-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Li XY, Cheng M, Li J, Zhao X, Qin YS, Chen D, Wang JM, Wang CF. Change in the structural and functional properties of goat milk protein due to pH and heat. J Dairy Sci 2019; 103:1337-1351. [PMID: 31785880 DOI: 10.3168/jds.2019-16862] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/25/2019] [Accepted: 10/02/2019] [Indexed: 01/11/2023]
Abstract
This study was carried out to investigate the effects of pH and heat on the structure and function of milk proteins by comparing goat milk treated under different pH and temperature conditions. The results showed that pH had a significant effect on the thermal stability of goat milk proteins, and the proteins were least thermally stable at pH 7.7. Except for the pH 6.9 goat milk, the surface hydrophobicities of the milk proteins at various pH values reached their maxima at 85°C. The particle size, zeta potential, and content of regular secondary structure also decreased significantly at 85°C, and the turbidity of milk proteins under alkaline pH conditions was lower than that under acidic conditions. It was concluded that alkaline conditions resulted in better emulsion stability and oil-holding capacity, and acidic conditions offered better foaming ability, foam stability, and water-holding capacity for goat milk protein during heat processing. It can also be seen that 85°C was the key temperature for milk proteins after changing the pH of the milk. This paper provides a theoretical basis for optimizing the processing conditions for goat milk and the applications of goat milk proteins.
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Affiliation(s)
- X Y Li
- College of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China, 250353
| | - M Cheng
- Qingdao Research Institute of Husbandry and Veterinary, Qingdao, China, 266100
| | - J Li
- College of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China, 250353
| | - X Zhao
- College of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China, 250353
| | - Y S Qin
- College of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China, 250353
| | - D Chen
- College of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China, 250353
| | - J M Wang
- College of Animal Science and Veterinary Medicine, Shandong Agricultural University, Taian, China, 271018
| | - C F Wang
- College of Food Science and Engineering, Qilu University of Technology (Shandong Academy of Sciences), Jinan, China, 250353.
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Cheng M, Lee KY. Type A aortic dissection involving the superior mesenteric artery with peripheral malperfusion managed with a hybrid approach: a case report. Hong Kong Med J 2019; 25:403-405. [PMID: 31761751 DOI: 10.12809/hkmj177127] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Affiliation(s)
- M Cheng
- Department of Surgery, Queen Elizabeth Hospital, Jordan, Hong Kong
| | - K Y Lee
- Department of Surgery, Queen Elizabeth Hospital, Jordan, Hong Kong
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Shukr G, Eisenstein DI, Katayir U, Cheng M. 2670 Laparoscopy in the Chronic Pelvic Pain Patient: Incidence and Outcomes of Subsequent Laparoscopies. J Minim Invasive Gynecol 2019. [DOI: 10.1016/j.jmig.2019.09.324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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