1
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Chen H, Liu C, Xu J, Maxwell A, Zhou W, Yang Y, Zhou Q, Bati ASR, Wan H, Wang Z, Zeng L, Wang J, Serles P, Liu Y, Teale S, Liu Y, Saidaminov MI, Li M, Rolston N, Hoogland S, Filleter T, Kanatzidis MG, Chen B, Ning Z, Sargent EH. Improved charge extraction in inverted perovskite solar cells with dual-site-binding ligands. Science 2024; 384:189-193. [PMID: 38603485 DOI: 10.1126/science.adm9474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/14/2023] [Accepted: 03/14/2024] [Indexed: 04/13/2024]
Abstract
Inverted (pin) perovskite solar cells (PSCs) afford improved operating stability in comparison to their nip counterparts but have lagged in power conversion efficiency (PCE). The energetic losses responsible for this PCE deficit in pin PSCs occur primarily at the interfaces between the perovskite and the charge-transport layers. Additive and surface treatments that use passivating ligands usually bind to a single active binding site: This dense packing of electrically resistive passivants perpendicular to the surface may limit the fill factor in pin PSCs. We identified ligands that bind two neighboring lead(II) ion (Pb2+) defect sites in a planar ligand orientation on the perovskite. We fabricated pin PSCs and report a certified quasi-steady state PCE of 26.15 and 24.74% for 0.05- and 1.04-square centimeter illuminated areas, respectively. The devices retain 95% of their initial PCE after 1200 hours of continuous 1 sun maximum power point operation at 65°C.
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Affiliation(s)
- Hao Chen
- Department of Chemistry, Northwestern University, Evanston, IL 60208, USA
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, ON M5S 1A4, Canada
| | - Cheng Liu
- Department of Chemistry, Northwestern University, Evanston, IL 60208, USA
| | - Jian Xu
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, ON M5S 1A4, Canada
| | - Aidan Maxwell
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, ON M5S 1A4, Canada
| | - Wei Zhou
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, China
| | - Yi Yang
- Department of Chemistry, Northwestern University, Evanston, IL 60208, USA
| | - Qilin Zhou
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, China
| | - Abdulaziz S R Bati
- Department of Chemistry, Northwestern University, Evanston, IL 60208, USA
| | - Haoyue Wan
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, ON M5S 1A4, Canada
| | - Zaiwei Wang
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, ON M5S 1A4, Canada
| | - Lewei Zeng
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, ON M5S 1A4, Canada
| | - Junke Wang
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, ON M5S 1A4, Canada
| | - Peter Serles
- Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, ON M5S 3G8, Canada
| | - Yuan Liu
- Department of Chemistry, Northwestern University, Evanston, IL 60208, USA
| | - Sam Teale
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, ON M5S 1A4, Canada
| | - Yanjiang Liu
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, ON M5S 1A4, Canada
| | - Makhsud I Saidaminov
- Department of Electrical and Computer Engineering, University of Victoria, Victoria, BC V8P 5C2, Canada
| | - Muzhi Li
- Ira A. Fulton Schools of Engineering, Arizona State University, Tempe, AZ 85281, USA
| | - Nicholas Rolston
- Ira A. Fulton Schools of Engineering, Arizona State University, Tempe, AZ 85281, USA
| | - Sjoerd Hoogland
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, ON M5S 1A4, Canada
| | - Tobin Filleter
- Department of Mechanical and Industrial Engineering, University of Toronto, Toronto, ON M5S 3G8, Canada
| | | | - Bin Chen
- Department of Chemistry, Northwestern University, Evanston, IL 60208, USA
| | - Zhijun Ning
- School of Physical Science and Technology, ShanghaiTech University, Shanghai, China
| | - Edward H Sargent
- Department of Chemistry, Northwestern University, Evanston, IL 60208, USA
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, ON M5S 1A4, Canada
- Department of Electrical and Computer Engineering, Northwestern University, Evanston, IL 60208, USA
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2
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Wan H, Jung ED, Zhu T, Park SM, Pina JM, Xia P, Bertens K, Wang YK, Atan O, Chen H, Hou Y, Lee S, Won YH, Kim KH, Hoogland S, Sargent EH. Nickel Oxide Hole Injection Layers for Balanced Charge Injection in Quantum Dot Light-Emitting Diodes. Small 2024:e2402371. [PMID: 38597692 DOI: 10.1002/smll.202402371] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/25/2024] [Indexed: 04/11/2024]
Abstract
Quantum dot (QD) light-emitting diodes (QLEDs) are promising for next-generation displays, but suffer from carrier imbalance arising from lower hole injection compared to electron injection. A defect engineering strategy is reported to tackle transport limitations in nickel oxide-based inorganic hole-injection layers (HILs) and find that hole injection is able to enhance in high-performance InP QLEDs using the newly designed material. Through optoelectronic simulations, how the electronic properties of NiOx affect hole injection efficiency into an InP QD layer, finding that efficient hole injection depends on lowering the hole injection barrier and enhancing the acceptor density of NiOx is explored. Li doping and oxygen enriching are identified as effective strategies to control intrinsic and extrinsic defects in NiOx, thereby increasing acceptor density, as evidenced by density functional theory calculations and experimental validation. With fine-tuned inorganic HIL, InP QLEDs exhibit a luminance of 45 200 cd m-2 and an external quantum efficiency of 19.9%, surpassing previous inorganic HIL-based QLEDs. This study provides a path to designing inorganic materials for more efficient and sustainable lighting and display technologies.
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Affiliation(s)
- Haoyue Wan
- Department of Electrical and Computer Engineering, University of Toronto, 35 St George Street, Toronto, Ontario, M5S 1A4, Canada
| | - Eui Dae Jung
- Department of Electrical and Computer Engineering, University of Toronto, 35 St George Street, Toronto, Ontario, M5S 1A4, Canada
| | - Tong Zhu
- Department of Electrical and Computer Engineering, University of Toronto, 35 St George Street, Toronto, Ontario, M5S 1A4, Canada
| | - So Min Park
- Department of Electrical and Computer Engineering, University of Toronto, 35 St George Street, Toronto, Ontario, M5S 1A4, Canada
| | - Joao M Pina
- Department of Electrical and Computer Engineering, University of Toronto, 35 St George Street, Toronto, Ontario, M5S 1A4, Canada
| | - Pan Xia
- Department of Electrical and Computer Engineering, University of Toronto, 35 St George Street, Toronto, Ontario, M5S 1A4, Canada
| | - Koen Bertens
- Department of Electrical and Computer Engineering, University of Toronto, 35 St George Street, Toronto, Ontario, M5S 1A4, Canada
| | - Ya-Kun Wang
- Department of Electrical and Computer Engineering, University of Toronto, 35 St George Street, Toronto, Ontario, M5S 1A4, Canada
| | - Ozan Atan
- Department of Electrical and Computer Engineering, University of Toronto, 35 St George Street, Toronto, Ontario, M5S 1A4, Canada
| | - Haijie Chen
- Department of Electrical and Computer Engineering, University of Toronto, 35 St George Street, Toronto, Ontario, M5S 1A4, Canada
| | - Yi Hou
- Department of Electrical and Computer Engineering, University of Toronto, 35 St George Street, Toronto, Ontario, M5S 1A4, Canada
| | - Seungjin Lee
- Department of Electrical and Computer Engineering, University of Toronto, 35 St George Street, Toronto, Ontario, M5S 1A4, Canada
| | - Yu-Ho Won
- Samsung Advanced Institute of Technology, Samsung Electronics, Suwon, 16678, Republic of Korea
| | - Kwang-Hee Kim
- Samsung Advanced Institute of Technology, Samsung Electronics, Suwon, 16678, Republic of Korea
| | - Sjoerd Hoogland
- Department of Electrical and Computer Engineering, University of Toronto, 35 St George Street, Toronto, Ontario, M5S 1A4, Canada
| | - Edward H Sargent
- Department of Electrical and Computer Engineering, University of Toronto, 35 St George Street, Toronto, Ontario, M5S 1A4, Canada
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3
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Shen WS, Liu Y, Grater L, Park SM, Wan H, Yu YJ, Pan JL, Kong FC, Tian QS, Zhou DY, Liu Z, Ma W, Sun B, Hoogland S, Wang YK, Liao LS. Thickness-variation-insensitive near-infrared quantum dot LEDs. Sci Bull (Beijing) 2023; 68:2954-2961. [PMID: 37919156 DOI: 10.1016/j.scib.2023.10.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2023] [Revised: 09/05/2023] [Accepted: 10/12/2023] [Indexed: 11/04/2023]
Abstract
In terms of tunable luminescence and high quantum efficiency, colloidal quantum dots (CQDs) are promising semiconductors for constructing near-infrared light-emitting diodes (NIR-LEDs). However, currently available NIR-LEDs are susceptible to variations in the emission layer thickness (EMLT), the highest external quantum efficiency (EQE) decreases to below 50% (relative to peak EQE) when the EMLT varies out of a narrow range of (±30 nm). This is due to the thickness-dependent carrier recombination rate and current density variation, resulting in batch-to-batch EQE fluctuations that limit LED reproducibility. Here we report efficient NIR-LEDs that exhibit EQE variations of less than 15% (relative to the champion EQE) over an EMLT range of 40-220 nm; the highest achievable EQE of ∼11.5% was obtained by encapsulating a 212 nm-thick CQD within a type-I inorganic shell to enhance the radiative recombination in the dots, resulting in a high photoluminescence quantum yield of 80%, and by post-treating the films with a bifunctional linking agent to improve and balance the hole and electron mobilities in the entire film (electron mobility: 8.23 × 10-3 cm2 V-1 s-1; hole mobility: 7.0 × 10-3 cm2 V-1 s-1). This work presents the first NIR-LEDs that exhibit EMLT-invariant EQE over an EMLT range of 40-220 nm, which represents the highest EQE among reported CQD NIR-LEDs with a QD thickness exceeding 100 nm.
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Affiliation(s)
- Wan-Shan Shen
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou 215123, China
| | - Yang Liu
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou 215123, China
| | - Luke Grater
- Department of Electrical and Computer Engineering, University of Toronto, Toronto M5S 3G4, Canada
| | - So Min Park
- Department of Electrical and Computer Engineering, University of Toronto, Toronto M5S 3G4, Canada
| | - Haoyue Wan
- Department of Electrical and Computer Engineering, University of Toronto, Toronto M5S 3G4, Canada
| | - Yan-Jun Yu
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou 215123, China
| | - Jia-Lin Pan
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou 215123, China
| | - Fan-Cheng Kong
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou 215123, China
| | - Qi-Sheng Tian
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou 215123, China
| | - Dong-Ying Zhou
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou 215123, China
| | - Zeke Liu
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou 215123, China.
| | - Wanli Ma
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou 215123, China
| | - Baoquan Sun
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou 215123, China
| | - Sjoerd Hoogland
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou 215123, China
| | - Ya-Kun Wang
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou 215123, China; Department of Electrical and Computer Engineering, University of Toronto, Toronto M5S 3G4, Canada.
| | - Liang-Sheng Liao
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou 215123, China; Macao Institute of Materials Science and Engineering, Macau University of Science and Technology, Macao 999078, China.
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4
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Imran M, Paritmongkol W, Mills HA, Hassan Y, Zhu T, Wang YK, Liu Y, Wan H, Park SM, Jung E, Tam J, Lyu Q, Cotella GF, Ijaz P, Chun P, Hoogland S. Molecular-Additive-Assisted Tellurium Homogenization in ZnSeTe Quantum Dots. Adv Mater 2023; 35:e2303528. [PMID: 37450343 DOI: 10.1002/adma.202303528] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2023] [Revised: 06/23/2023] [Accepted: 06/30/2023] [Indexed: 07/18/2023]
Abstract
Addition of aqueous hydrohalic acids during the synthesis of colloidal quantum dots (QDs) is widely employed to achieve high-quality QDs. However, this reliance on the use of aqueous solutions is incompatible with oxygen- and water-sensitive precursors such as those used in the synthesis of Te-alloyed ZnSe QDs. Herein, it is shown that this incompatibility leads to phase segregation into Te-rich and Te-poor regions, causing spectral broadening and luminescence peak shifting under high laser irradiation and applied electrical bias. Here, a synthetic strategy to produce anhydrous-HF in situ by using benzenecarbonyl fluoride (BF) as a chemical additive is reported. Through in situ 19 F NMR spectroscopy, it is found that BF reacts with surfactants in tandem, ultimately producing intermediary F···H···trioctylamine adducts. These act as a pseudo-HF source that releases anhydrous HF. The controlled release of HF during nucleation and growth steps homogenizes Te distribution in ZnSeTe lattice, leading to spectrally stable blue-emitting QDs under increasing laser flux from ≈3 µW to ≈12 mW and applied bias from 2.6 to 10 V. Single-dot photoluminescence (PL) spectroscopy and analyses of the absorption, PL and transient absorption spectra together with density functional theory point to the role of anhydrous HF as a Te homogenizer.
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Affiliation(s)
- Muhammad Imran
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada
| | - Watcharaphol Paritmongkol
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada
| | - Harrison A Mills
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario, M5S 3H6, Canada
| | - Yasser Hassan
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada
- Department of Chemistry and Earth Sciences, College of Arts and Sciences, Qatar University, Doha, 2713, Qatar
| | - Tong Zhu
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada
| | - Ya-Kun Wang
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada
| | - Yuan Liu
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada
| | - Haoyue Wan
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada
| | - So Min Park
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada
| | - Euidae Jung
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada
| | - Jason Tam
- Department of Materials Science and Engineering, University of Toronto, 184 College Street, Toronto, Ontario, M5S 3E4, Canada
| | - Quan Lyu
- Huawei Technologies Research & Development (UK) Ltd., 101 Science Park, Milton Road, Cambridge, CB4 0FY, UK
| | - Giovanni Francesco Cotella
- Huawei Technologies Research and Development (UK) Limited, Phoenix House, B55 Adastral Park, Martlesham Heath, Ipswich, IP5 3RE, UK
| | - Palvasha Ijaz
- Department of Nanochemistry, Istituto Italiano di Tecnologia, Via Morego 30, Genoa, 16163, Italy
| | - Peter Chun
- Allstate Pkwy, Huawei Technologies, Markham, Ontario, L3R 5A4, Canada
| | - Sjoerd Hoogland
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario, M5S 3G4, Canada
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5
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Xu J, Chen H, Grater L, Liu C, Yang Y, Teale S, Maxwell A, Mahesh S, Wan H, Chang Y, Chen B, Rehl B, Park SM, Kanatzidis MG, Sargent EH. Anion optimization for bifunctional surface passivation in perovskite solar cells. Nat Mater 2023:10.1038/s41563-023-01705-y. [PMID: 37903926 DOI: 10.1038/s41563-023-01705-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/24/2023] [Accepted: 09/27/2023] [Indexed: 11/01/2023]
Abstract
Pseudo-halide (PH) anion engineering has emerged as a surface passivation strategy of interest for perovskite-based optoelectronics; but until now, PH anions have led to insufficient defect passivation and thus to undesired deep impurity states. The size of the chemical space of PH anions (>106 molecules) has so far limited attempts to explore the full family of candidate molecules. We created a machine learning workflow to speed up the discovery process using full-density functional theory calculations for training the model. The physics-informed machine learning model allowed us to pinpoint promising molecules with a head group that prevents lattice distortion and anti-site defect formation, and a tail group optimized for strong attachment to the surface. We identified 15 potential bifunctional PH anions with the ability to passivate both donors and acceptors, and through experimentation, discovered that sodium thioglycolate was the most effective passivant. This strategy resulted in a power-conversion efficiency of 24.56% with a high open-circuit voltage of 1.19 volts (24.04% National Renewable Energy Lab-certified quasi-steady-state) in inverted perovskite solar cells. Encapsulated devices maintained 96% of their initial power-conversion energy during 900 hours of one-sun operation at the maximum power point.
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Affiliation(s)
- Jian Xu
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, Canada
| | - Hao Chen
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, Canada
| | - Luke Grater
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, Canada
| | - Cheng Liu
- Department of Chemistry, Northwestern University, Evanston, IL, USA
| | - Yi Yang
- Department of Chemistry, Northwestern University, Evanston, IL, USA
| | - Sam Teale
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, Canada
| | - Aidan Maxwell
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, Canada
| | - Suhas Mahesh
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, Canada
| | - Haoyue Wan
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, Canada
| | - Yuxin Chang
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, Canada
| | - Bin Chen
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, Canada
- Department of Chemistry, Northwestern University, Evanston, IL, USA
| | - Benjamin Rehl
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, Canada
| | - So Min Park
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, Canada
| | | | - Edward H Sargent
- Department of Electrical and Computer Engineering, University of Toronto, Toronto, Ontario, Canada.
- Department of Chemistry, Northwestern University, Evanston, IL, USA.
- Department of Electrical and Computer Engineering, Northwestern University, Evanston, IL, USA.
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6
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Wang YK, Jia F, Li X, Teale S, Xia P, Liu Y, Chan PTS, Wan H, Hassan Y, Imran M, Chen H, Grater L, Sun LD, Walker GC, Hoogland S, Lu ZH, Yan CH, Liao LS, Sargent EH. Self-assembled monolayer-based blue perovskite LEDs. Sci Adv 2023; 9:eadh2140. [PMID: 37683007 PMCID: PMC10491221 DOI: 10.1126/sciadv.adh2140] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/16/2023] [Accepted: 08/09/2023] [Indexed: 09/10/2023]
Abstract
Blue perovskite light-emitting diodes (LEDs) have shown external quantum efficiencies (EQEs) of more than 10%; however, devices that emit in the true blue-those that accord with the emission wavelength required for Rec. 2100 primary blue-have so far been limited to EQEs of ~6%. We focused here on true blue emitting CsPbBr3 colloidal nanocrystals (c-NCs), finding in early studies that they suffer from a high charge injection barrier, a problem exacerbated in films containing multiple layers of nanocrystals. We introduce a self-assembled monolayer (SAM) active layer that improves charge injection. We identified a bifunctional capping ligand that simultaneously enables the self-assembly of CsPbBr3 c-NCs while passivating surface traps. We report, as a result, SAM-based LEDs exhibit a champion EQE of ~12% [CIE of (0.132, 0.069) at 4.0 V with a luminance of 11 cd/m2], and 10-fold-enhanced operating stability relative to the best previously reported Rec. 2100-blue perovskite LEDs.
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Affiliation(s)
- Ya-Kun Wang
- Department of Electrical and Computer Engineering, University of Toronto, 10 King’s College Road, Toronto, Ontario M5S 3G4, Canada
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, Jiangsu 215123, PR China
| | - Fengyan Jia
- Department of Electrical and Computer Engineering, University of Toronto, 10 King’s College Road, Toronto, Ontario M5S 3G4, Canada
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare Earth Materials Chemistry and Applications, PKU-HKU Joint Laboratory in Rare Earth Materials and Bioinorganic Chemistry, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Xiaoyue Li
- Department of Materials Science and Engineering, University of Toronto, 184 College Street, Toronto, Ontario M5S 3E4, Canada
| | - Sam Teale
- Department of Electrical and Computer Engineering, University of Toronto, 10 King’s College Road, Toronto, Ontario M5S 3G4, Canada
| | - Pan Xia
- Department of Electrical and Computer Engineering, University of Toronto, 10 King’s College Road, Toronto, Ontario M5S 3G4, Canada
| | - Yuan Liu
- Department of Electrical and Computer Engineering, University of Toronto, 10 King’s College Road, Toronto, Ontario M5S 3G4, Canada
| | - Phoebe Tsz-shan Chan
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
| | - Haoyue Wan
- Department of Electrical and Computer Engineering, University of Toronto, 10 King’s College Road, Toronto, Ontario M5S 3G4, Canada
| | - Yasser Hassan
- Department of Electrical and Computer Engineering, University of Toronto, 10 King’s College Road, Toronto, Ontario M5S 3G4, Canada
- Department of Chemistry and Earth Sciences, College of Arts and Sciences, Qatar University, P.O. Box: 2713, Doha, Qatar
| | - Muhammad Imran
- Department of Electrical and Computer Engineering, University of Toronto, 10 King’s College Road, Toronto, Ontario M5S 3G4, Canada
| | - Hao Chen
- Department of Electrical and Computer Engineering, University of Toronto, 10 King’s College Road, Toronto, Ontario M5S 3G4, Canada
| | - Luke Grater
- Department of Electrical and Computer Engineering, University of Toronto, 10 King’s College Road, Toronto, Ontario M5S 3G4, Canada
| | - Ling-Dong Sun
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare Earth Materials Chemistry and Applications, PKU-HKU Joint Laboratory in Rare Earth Materials and Bioinorganic Chemistry, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Gilbert C. Walker
- Department of Chemistry, University of Toronto, 80 St. George Street, Toronto, Ontario M5S 3H6, Canada
| | - Sjoerd Hoogland
- Department of Electrical and Computer Engineering, University of Toronto, 10 King’s College Road, Toronto, Ontario M5S 3G4, Canada
| | - Zheng-Hong Lu
- Department of Materials Science and Engineering, University of Toronto, 184 College Street, Toronto, Ontario M5S 3E4, Canada
| | - Chun-Hua Yan
- Beijing National Laboratory for Molecular Sciences, State Key Laboratory of Rare Earth Materials Chemistry and Applications, PKU-HKU Joint Laboratory in Rare Earth Materials and Bioinorganic Chemistry, College of Chemistry and Molecular Engineering, Peking University, Beijing 100871, China
| | - Liang-Sheng Liao
- Institute of Functional Nano & Soft Materials (FUNSOM), Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Soochow University, Suzhou, Jiangsu 215123, PR China
| | - Edward H. Sargent
- Department of Electrical and Computer Engineering, University of Toronto, 10 King’s College Road, Toronto, Ontario M5S 3G4, Canada
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7
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Damen AHA, van Donkelaar CC, Sharma PK, Wan H, Cardinaels R, Schmidt TA, Ito K. Friction reducing ability of a poly-l-lysine and dopamine modified hyaluronan coating for polycaprolactone cartilage resurfacing implants. J Biomed Mater Res B Appl Biomater 2023. [PMID: 36959715 DOI: 10.1002/jbm.b.35251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 01/05/2023] [Accepted: 03/12/2023] [Indexed: 03/25/2023]
Abstract
Frictional properties of cartilage resurfacing implants should be sufficiently low to limit damaging of the opposing cartilage during articulation. The present study determines if native lubricious molecule proteoglycan 4 (PRG4) can adsorb onto a layer-by-layer bioinspired coating composed of poly-l-lysine (PLL) and dopamine modified hyaluronic acid (HADN) and thereby can reduce the friction between implant and articular cartilage. An ELISA was developed to quantify the amount of immobilized human recombinant (rh)PRG4 after exposure to the PLL-HADN coating. The effect on lubrication was evaluated by comparing the coefficient of friction (CoF) of bare polycaprolactone (PCL) disks to that of PLL-HADN coated PCL disks while articulated against cartilage using a ring-on-disk geometry and a lubricant solution consisting of native synovial fluid components including rhPRG4. The PLL-HADN coating effectively immobilized rhPRG4. The surface roughness of PCL disks significantly increased while the water contact angle significantly decreased after application of the coating. The average CoF measured during the first minute of bare PCL against cartilage exceeded twice the CoF of the PLL-HADN coated PCL against cartilage. After 60 min, the CoF reached equilibrium values which were still significantly higher for bare PCL compared to coated PCL. The present study demonstrated that PCL can effectively be coated with PLL-HADN. Additionally, this coating reduces the friction between PCL and cartilage when a PRG4-rich lubricant is used, similar to the lubricating surface of native cartilage. This makes PLL-HADN coating a promising application to improve the clinical success of PCL-based cartilage resurfacing implants.
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Affiliation(s)
- A H A Damen
- Department of Biomedical Engineering, Orthopaedic Biomechanics, Eindhoven University of Technology, Eindhoven, The Netherlands
| | - C C van Donkelaar
- Department of Biomedical Engineering, Orthopaedic Biomechanics, Eindhoven University of Technology, Eindhoven, The Netherlands
| | - P K Sharma
- Department of Biomedical Engineering, University Medical Center Groningen, Groningen, The Netherlands
| | - H Wan
- College of Veterinary Medicine, Sichuan Agricultural University, Chengdu, China
| | - R Cardinaels
- Department of Chemical Engineering, Soft Matter, Rheology and Technology, KU Leuven, Leuven, Belgium
- Department of Mechanical Engineering, Polymer Technology, Eindhoven University of Technology, Eindhoven, The Netherlands
| | - T A Schmidt
- Department of Biomedical Engineering, University of Connecticut Health Center, Farmington, Connecticut, USA
| | - K Ito
- Department of Biomedical Engineering, Orthopaedic Biomechanics, Eindhoven University of Technology, Eindhoven, The Netherlands
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Wang YK, Wan H, Xu J, Zhong Y, Jung ED, Park SM, Teale S, Imran M, Yu YJ, Xia P, Won YH, Kim KH, Lu ZH, Liao LS, Hoogland S, Sargent EH. Bifunctional Electron-Transporting Agent for Red Colloidal Quantum Dot Light-Emitting Diodes. J Am Chem Soc 2023; 145:6428-6433. [PMID: 36897963 DOI: 10.1021/jacs.2c13677] [Citation(s) in RCA: 1] [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: 03/12/2023]
Abstract
Indium phosphide (InP) quantum dots have enabled light-emitting diodes (LEDs) that are heavy-metal-free, narrow in emission linewidth, and physically flexible. However, ZnO/ZnMgO, the electron-transporting layer (ETL) in high-performance red InP/ZnSe/ZnS LEDs, suffers from high defect densities, quenches luminescence when deposited on InP, and induces performance degradation that arises due to trap migration from the ETL to the InP emitting layer. We posited that the formation of Zn2+ traps on the outer ZnS shell, combined with sulfur and oxygen vacancy migration between ZnO/ZnMgO and InP, may account for this issue. We synthesized therefore a bifunctional ETL (CNT2T, 3',3'″,3'″″-(1,3,5-triazine-2,4,6-triyl)tris(([1,1'-biphenyl]-3-carbonitrile)) designed to passivate Zn2+ traps locally and in situ and to prevent vacancy migration between layers: the backbone of the small molecule ETL contains a triazine electron-withdrawing unit to ensure sufficient electron mobility (6 × 10-4 cm2 V-1 s-1), and the star-shaped structure with multiple cyano groups provides effective passivation of the ZnS surface. We report as a result red InP LEDs having an EQE of 15% and a luminance of over 12,000 cd m-2; this represents a record among organic-ETL-based red InP LEDs.
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Affiliation(s)
- Ya-Kun Wang
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario M5S 3G4, Canada
- Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu 215123, PR China
| | - Haoyue Wan
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario M5S 3G4, Canada
| | - Jian Xu
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario M5S 3G4, Canada
| | - Yun Zhong
- Department of Materials Science and Engineering, University of Toronto, 184 College Street, Toronto, Ontario M5S 3E4, Canada
| | - Eui Dae Jung
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario M5S 3G4, Canada
| | - So Min Park
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario M5S 3G4, Canada
| | - Sam Teale
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario M5S 3G4, Canada
| | - Muhammad Imran
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario M5S 3G4, Canada
| | - You-Jun Yu
- Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu 215123, PR China
| | - Pan Xia
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario M5S 3G4, Canada
| | - Yu-Ho Won
- Samsung Electronics, Samsung Advanced Institute of Technology, Suwon-si, Gyeonggi-do 16678, Republic of Korea
| | - Kwang-Hee Kim
- Samsung Electronics, Samsung Advanced Institute of Technology, Suwon-si, Gyeonggi-do 16678, Republic of Korea
| | - Zheng-Hong Lu
- Department of Materials Science and Engineering, University of Toronto, 184 College Street, Toronto, Ontario M5S 3E4, Canada
| | - Liang-Sheng Liao
- Jiangsu Key Laboratory for Carbon-Based Functional Materials & Devices, Institute of Functional Nano & Soft Materials (FUNSOM), Soochow University, Suzhou, Jiangsu 215123, PR China
| | - Sjoerd Hoogland
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario M5S 3G4, Canada
| | - Edward H Sargent
- Department of Electrical and Computer Engineering, University of Toronto, 10 King's College Road, Toronto, Ontario M5S 3G4, Canada
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Wang J, Fu S, Wan H, Zheng NF, Ouyang NT, Guan Z, Zeng H. [Fatal macrofollicular variant of papillary thyroid carcinoma:report of a case]. Zhonghua Bing Li Xue Za Zhi 2022; 51:1174-1177. [PMID: 36323553 DOI: 10.3760/cma.j.cn112151-20220725-00650] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Affiliation(s)
- J Wang
- Department of Cellular and Molecular Diagnostics Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China
| | - S Fu
- Department of Cellular and Molecular Diagnostics Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China
| | - H Wan
- Department of Cellular and Molecular Diagnostics Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China
| | - N F Zheng
- Department of Cellular and Molecular Diagnostics Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China
| | - N T Ouyang
- Department of Cellular and Molecular Diagnostics Center, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China
| | - Z Guan
- Department of Otolaryngology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China
| | - H Zeng
- Department of Pathology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China
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Salzmann M, Ferrachat S, Tully C, Münch S, Watson‐Parris D, Neubauer D, Siegenthaler‐Le Drian C, Rast S, Heinold B, Crueger T, Brokopf R, Mülmenstädt J, Quaas J, Wan H, Zhang K, Lohmann U, Stier P, Tegen I. The Global Atmosphere-aerosol Model ICON-A-HAM2.3-Initial Model Evaluation and Effects of Radiation Balance Tuning on Aerosol Optical Thickness. J Adv Model Earth Syst 2022; 14:e2021MS002699. [PMID: 35860306 PMCID: PMC9285428 DOI: 10.1029/2021ms002699] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 07/09/2021] [Revised: 02/28/2022] [Accepted: 03/12/2022] [Indexed: 06/15/2023]
Abstract
The Hamburg Aerosol Module version 2.3 (HAM2.3) from the ECHAM6.3-HAM2.3 global atmosphere-aerosol model is coupled to the recently developed icosahedral nonhydrostatic ICON-A (icon-aes-1.3.00) global atmosphere model to yield the new ICON-A-HAM2.3 atmosphere-aerosol model. The ICON-A and ECHAM6.3 host models use different dynamical cores, parameterizations of vertical mixing due to sub-grid scale turbulence, and parameter settings for radiation balance tuning. Here, we study the role of the different host models for simulated aerosol optical thickness (AOT) and evaluate impacts of using HAM2.3 and the ECHAM6-HAM2.3 two-moment cloud microphysics scheme on several meteorological variables. Sensitivity runs show that a positive AOT bias over the subtropical oceans is remedied in ICON-A-HAM2.3 because of a different default setting of a parameter in the moist convection parameterization of the host models. The global mean AOT is biased low compared to MODIS satellite instrument retrievals in ICON-A-HAM2.3 and ECHAM6.3-HAM2.3, but the bias is larger in ICON-A-HAM2.3 because negative AOT biases over the Amazon, the African rain forest, and the northern Indian Ocean are no longer compensated by high biases over the sub-tropical oceans. ICON-A-HAM2.3 shows a moderate improvement with respect to AOT observations at AERONET sites. A multivariable bias score combining biases of several meteorological variables into a single number is larger in ICON-A-HAM2.3 compared to standard ICON-A and standard ECHAM6.3. In the tropics, this multivariable bias is of similar magnitude in ICON-A-HAM2.3 and in ECHAM6.3-HAM2.3. In the extra-tropics, a smaller multivariable bias is found for ICON-A-HAM2.3 than for ECHAM6.3-HAM2.3.
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Affiliation(s)
- M. Salzmann
- Institute for MeteorologyUniversität LeipzigLeipzigGermany
| | - S. Ferrachat
- Institute of Atmospheric and Climate ScienceETH ZürichZürichSwitzerland
| | - C. Tully
- Institute of Atmospheric and Climate ScienceETH ZürichZürichSwitzerland
| | - S. Münch
- Institute of Atmospheric and Climate ScienceETH ZürichZürichSwitzerland
| | - D. Watson‐Parris
- Atmospheric, Oceanic and Planetary PhysicsDepartment of PhysicsUniversity of OxfordOxfordUK
| | - D. Neubauer
- Institute of Atmospheric and Climate ScienceETH ZürichZürichSwitzerland
| | | | - S. Rast
- Max Planck Institute for MeteorologyHamburgGermany
| | - B. Heinold
- Leibniz Institute for Tropospheric ResearchLeipzigGermany
| | - T. Crueger
- Max Planck Institute for MeteorologyHamburgGermany
| | - R. Brokopf
- Max Planck Institute for MeteorologyHamburgGermany
| | - J. Mülmenstädt
- Institute for MeteorologyUniversität LeipzigLeipzigGermany
- Now at Pacific Northwest National LaboratoryRichlandWAUSA
| | - J. Quaas
- Institute for MeteorologyUniversität LeipzigLeipzigGermany
| | - H. Wan
- Pacific Northwest National LaboratoryRichlandWAUSA
| | - K. Zhang
- Pacific Northwest National LaboratoryRichlandWAUSA
| | - U. Lohmann
- Institute of Atmospheric and Climate ScienceETH ZürichZürichSwitzerland
| | - P. Stier
- Atmospheric, Oceanic and Planetary PhysicsDepartment of PhysicsUniversity of OxfordOxfordUK
| | - I. Tegen
- Leibniz Institute for Tropospheric ResearchLeipzigGermany
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Wan H, Yang H, Wei M, Chen W. Polyinosinic:polycytidylic acid aggravates calcipotriol-induced atopic dermatitis-like skin lesions in mice by increasing the expression of thymic stromal lymphopoietin. Ann Transl Med 2022; 10:209. [PMID: 35280398 PMCID: PMC8908153 DOI: 10.21037/atm-22-282] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/22/2021] [Accepted: 02/18/2022] [Indexed: 12/13/2022]
Abstract
Background Polyinosinic:polycytidylic acid [poly (I:C)] is a synthetic viral double-stranded RNA analog that can activate Toll-like receptor 3 (TLR3) and induce the release of thymic stromal lymphopoietin (TSLP). TSLP has been shown to contribute to atopic dermatitis (AD). This study explored the effects of poly (I:C) in a calcipotriol-induced model of murine AD. Methods Calcipotriol (MC903) was used to establish AD-like mice model. Mice in the MC903 + poly (I:C) group were then treated with poly (I:C) in a concentration of 5 µg/g bodyweight. The impact of poly (I:C) treatment on these animals was assessed based upon changes in lesions, bodyweight, ear thickness, and histopathological findings. In addition, serum interleukin 4 (IL-4), interferon-γ (IFN-γ), immunoglobulin E (IgE), IL-13, and TSLP levels were measured using enzyme-linked immunosorbent assay (ELISA), while tissue IL-13 and TSLP levels were assessed using ELISA, Western blotting, and immunohistochemical staining, and mast cell infiltration was assessed through toluidine blue (TBO) staining. Results Relative to vehicle control treatment, poly (I:C) administration was associated with a significant exacerbation of calcipotriol-induced AD-like murine skin lesions. In animals treated with poly (I:C), the levels of serum IL-4, IL-13 and TSLP increased significantly, while the level of IFN-γ did not change. It also increased IL-13 and TSLP levels in skin lesions relative to the control-group mice and increased dermal mast cell infiltration and IgE production. Conclusions These data indicate that poly (I:C) treatment and exogenous activation of TLR3 exacerbate murine calcipotriol-induced AD-like skin lesions in part by increasing the production of TSLP and other T-helper 2 (Th2)-related cytokines. Keywords Atopic dermatitis (AD); polyinosinic:polycytidylic acid [poly (I:C)]; thymic stromal lymphopoietin (TSLP); Toll-like receptor 3 (TLR3)
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Affiliation(s)
- Haoyue Wan
- Department of Dermatology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Huixue Yang
- Department of Dermatology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Mingjing Wei
- Department of Dermatology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
| | - Wenqi Chen
- Department of Dermatology, Nanjing First Hospital, Nanjing Medical University, Nanjing, China
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12
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Wan H, Liu P, Liang Y, Jiang SY, Lyu L, Zhang ZW, Wu N, Liu Y. [Prognostic evaluation value of (18)F-FDG PET-CT in Hodgkin's lymphoma after treatment]. Zhonghua Zhong Liu Za Zhi 2021; 43:1275-1281. [PMID: 34915636 DOI: 10.3760/cma.j.cn112152-20191212-00799] [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 investigate the prognostic value of (18)F-fluorodeoxygen-D-glucose-positron emission tomography /computerized tomography ((18)F-FDG-PET-CT) in Hodgkin's lymphoma (HL) at the end of first-line treatment (PET-end), by comparing the ratio of maximum standardized uptake value (SUV(max)) of lesion and liver SUV (rLL), SUV(max) reduction between baseline PET (PET-0) and PET-end (ΔSUV(max)), and Deauville 5-point scale (5-PS). Methods: Patients with HL newly treated in our hospital from August 2006 to December 2015 were retrospectively analyzed. All the patients enrolled in the study underwent post-treatment FDG PET-CT. The rLL and ΔSUV(max) were calculated, and all the cases were scored using Deauville 5-PS. The receiver operating characteristic (ROC) approach was applied to identify the optimal cut-point value, and survival curves according to different PET-CT assessment methods were estimated using the Kaplan-Meier analysis. The prognostic efficacy of different PET-CT assessment methods was compared, and DeLong test was used to verify it. Kaplan-Meier method and multivariate analysis using the Cox proportional hazards model were performed to analyze the potential independent risk factors. Results: There were 5 patients progressed within a 3-year follow-up. In the three PET-CT assessment methods, the predictive value of rLL and Deauville 5-PS were significant effective. ROC analysis for rLL as a progression predictor showed an optimal cut-point of 1.29. Deauville 5-PS=4 and rLL=1.29 showed the best prognostic accuracy. The sensitivity of rLL and Deauville 5-PS were both 80.0%, and the specificity of each was 98.0% and 93.7%, respectively. The positive predictive value (PPV) and negative predictive value (NPV) of rLL were 66.7% and 98.7%, while the PPV and NPV of 5-PS were 44.4% and 98.7%. The 3-years progression-free survival (PFS) rates of rLL≥1.29 group and rLL<1.29 group were 33.3% and 98.7%, with significant difference (P<0.001). The 3-years PFS rates of post-treatment Deauville 5-PS<4 group and Deauville 5-PS≥4 group were 98.7% and 55.6%, with significant difference (P<0.001). The prognostic evaluation efficacy of rLL was positively correlated with that of Deauville 5-PS (r=0.75, P<0.05). Area under curves (AUC) of rLL and Deauville 5-PS were 0.93 (95%CI: 0.825-1.000) and 0.91 (95%CI: 0.757-1.000), respectively. DeLong test showed the significant difference between the two methods (P<0.05). The univariate analysis results showed that clinical baseline stage, post-treatment rLL and Deauville 5-PS were associated with the prognoses of HL patients (P<0.05). The multivariate analysis results showed that post-treatment rLL and Deauville 5-PS were independent prognostic factors of HL (P<0.05). Conclusions: The rLL and Deauville 5-PS are potential prognostic factors for HL response assessment. The new semi-quantitative method rLL has methodological advantages over visual analysis, and it is a good supplement for Deauville 5-PS. rLL can improve prognostic evaluation accuracy of PET-CT and is useful to early identify patients with HL at a high risk of relapsing after first-line treatment.
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Affiliation(s)
- H Wan
- PET-CT Center, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - P Liu
- Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Y Liang
- Department of Nuclear Medicine, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital & Shenzhen Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Shenzhen 518116, China
| | - S Y Jiang
- Department of Medical Oncology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - L Lyu
- PET-CT Center, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Z W Zhang
- PET-CT Center, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - N Wu
- Department of Diagnostic Radiology, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
| | - Y Liu
- PET-CT Center, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100021, China
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Luo G, Pan SL, Wan H, Chen TT, Xu Q, Sun Y. [Interim follow-up of fetal cardiac intervention in five fetuses with pulmonary atresia with intact ventricular septum]. Zhonghua Er Ke Za Zhi 2021; 59:782-786. [PMID: 34645220 DOI: 10.3760/cma.j.cn112140-20210219-00141] [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: 06/13/2023]
Abstract
Objective: To summarize the interim outcome and right heart development of pulmonary atresia with intact ventricular septum (PA-IVS) in children after fetal cardiac intervention (FCI). Methods: The clinical data of 5 live births underwent FCI from October 2018 to April 2019 in Women and Children's Hospital, Qingdao University were analyzed retrospectively. The development of right ventricle (RV) and tricuspid valve (TV) in uterus after FCI, at birth, the age of 6 months, 1 year and 2 years, and the final outcome were assessed. Results: Five PA-IVS fetuses were included in this study. The first evaluation was performed at 24-26 weeks of gestational age, and the FCI was performed at 26-28 weeks of gestational age. During the follow-up of 6 weeks after FCI, the minimum diameter of tricuspid annulus increased from 0.85 cm to 0.92 cm, and the minimum Z-score of tricuspid annulus decreased from -0.03 to -1.62. The minimum values of TV/mitral valve annular diameter and RV/left ventricular length ratios of all fetuses increased from 0.57, 0.52 to 0.88, 0.82, respectively. The maximum tricuspid regurgitation velocity decreased from 4.60 m/s to 3.64 m/s. No severe hemodynamic change was found in any of the fetuses. All 5 fetuses were born alive. Three cases underwent percutaneous balloon pulmonary valvuloplasty (PBPV) and stent implantation for ductus arteriosus. Two cases received PBPV alone. At follow-up (26 to 32 months), obvious development of TV was observed 6 months to 1 year after birth in 5 cases with the growth rate ranging from 19.64% to 40.00%. Meanwhile, the RV development was relatively slow at 6 months with the growth rate ranging from 9.41% to 21.42%. There were individual differences in RV development at 2 years. The growth and development of all children were equal to healthy children of the same age with the body mass index less than 18.4 kg/m2. At the last follow-up, all children had a transcutaneous oxygen saturation of greater than 0.95, three became biventricular circulation and two had circulation approximation to biventricular circulation with almost closed stent. Conclusions: The findings support the potential of development of right ventricular and tricuspid valve for fetuses with PA-IVS underwent FCI. All fetuses underwent FCI received intervention after birth, and biventricular circulation can be realized finally. The development of right ventricular and tricuspid valve is not proportional. In utero, the right ventricle develops rapidly, and the development of tricuspid valve is more advantageous after birth.
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Affiliation(s)
- G Luo
- Heart Center, Women and Children's Hospital, Qingdao University, Qingdao 266034, China
| | - S L Pan
- Heart Center, Women and Children's Hospital, Qingdao University, Qingdao 266034, China
| | - H Wan
- Department of Ultrasonography, Women and Children's Hospital, Qingdao University, Qingdao 266034, China
| | - T T Chen
- Department of Ultrasonography, Women and Children's Hospital, Qingdao University, Qingdao 266034, China
| | - Q Xu
- Department of Obstetrics, Women and Children's Hospital, Qingdao University, Qingdao 266034, China
| | - Y Sun
- Department of Obstetrics, Women and Children's Hospital, Qingdao University, Qingdao 266034, China
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Xu R, Tian Q, Wan H, Wen JW, Zhang Q, Zhang Y. Spatial and Temporal Characteristics of PM2.5 Sources and Pollution Events in a Low Industrialized City. NEPT 2021. [DOI: 10.46488/nept.2021.v20i03.016] [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: 11/20/2022] Open
Abstract
In recent years, cities in southern China have experienced severe air pollution, despite having few sources of pollutants. To study the pollution characteristics of PM2.5 in these “low industrialized” cities, a numerical method based on the HYSPLIT4 Model and Kriging Spatial Interpolation Technology was established. Simulation results showed that the PM2.5 pollution in Guilin was affected by both internal and external sources. The backward air mass trajectory from July 2017 to June 2018 was simulated using the HYSPLIT model. The cluster analysis results indicated that the direction of trajectory ? accounted for 63.09% of the air pollution in the city. The average concentration of PM2.5 pollution was 45.94 ?g.m-3. The pollutant originated from the “Xiang-Gui Corridor.” The location of the sources was collocated with high industry regions. The spatial characteristics of the four pollution processes in the winter of 2017 were analyzed using a spatial interpolation method. The results showed that the transport of air masses in the direction of trajectory ? was obstructed by a mountain system in the northeast. Therefore, two air pollution accumulation centers and a topographic weakening zone dominated by internal and external sources were formed. It can be inferred that the air pollution in Guilin is affected by both internal and external factors. These results provide important theoretical and technical support for regional air pollution control and environmental protection.
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Yu Y, Wang J, Tan Y, Wan H, Zheng N, He Z, Mao L, Ren W, Lin Z, He G, Chen Y, Wang J, Ouyang N, Yao H. 1136P A clinically applicable cervical cancer artificial intelligence screening system for accurate cytopathological diagnosis: A multicenter population-based study and randomized controlled trial. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.08.778] [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: 10/20/2022] Open
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Chung H, Lee K, Kim W, Gainor J, Lakhani N, Chow L, Messersmith W, Fanning P, Squifflet P, Jin F, Forgie A, Wan H, Pons J, Randolph S, LoRusso P. SO-31 ASPEN-01: A phase 1 study of ALX148, a CD47 blocker, in combination with trastuzumab, ramucirumab and paclitaxel in patients with second-line HER2-positive advanced gastric or gastroesophageal junction cancer. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.05.055] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
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Cheng Y, Wan H, Liang T, Liu C, Wu M, Hong H, Liu K, Shen H. Continuously Graded Quantum Dots: Synthesis, Applications in Quantum Dot Light-Emitting Diodes, and Perspectives. J Phys Chem Lett 2021; 12:5967-5978. [PMID: 34160222 DOI: 10.1021/acs.jpclett.1c01554] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Colloidal quantum dot (QD) light-emitting diodes (QLEDs) hold the promise of next-generation displays and illumination owing to their excellent color saturation, high efficiency, and solution processability. For achieving high-performance light-emitting diodes (LEDs), engineering the fine compositions and structures of QDs is of paramount importance and attracts tremendous research interest. The recently developed continuously graded QDs (cg-QDs) with gradually altered nanocompositions and electronic band structures present the most advanced example in this area. In this Perspective, we summarize the current progress in LEDs based on cg-QDs, mainly concentrating on their synthesis and advantages in addressing the great challenges in QLEDs, like efficiency roll-off at high current densities, short operation lifetimes at high brightness, and low brightness near the voltage around the bandgap. In addition, we propose accessible approaches exploiting the cutting-edge mechanisms and techniques to further optimize and improve the performance of QLEDs.
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Affiliation(s)
- Yang Cheng
- State Key Laboratory for Mesoscopic Physics, Frontiers Science Center for Nano-optoelectronics, School of Physics, Peking University, Beijing 100871, China
- Key Laboratory for Special Functional Materials, Ministry of Education, School of Materials Science and Engineering, Henan University, Kaifeng 475004, China
| | - Haoyue Wan
- State Key Laboratory for Mesoscopic Physics, Frontiers Science Center for Nano-optoelectronics, School of Physics, Peking University, Beijing 100871, China
| | - Tianyu Liang
- State Key Laboratory for Mesoscopic Physics, Frontiers Science Center for Nano-optoelectronics, School of Physics, Peking University, Beijing 100871, China
| | - Can Liu
- State Key Laboratory for Mesoscopic Physics, Frontiers Science Center for Nano-optoelectronics, School of Physics, Peking University, Beijing 100871, China
| | - Muhong Wu
- International Center for Quantum Materials, Collaborative Innovation Center of Quantum Matter, Peking University, Beijing 100871, China
- Songshan Lake Laboratory for Materials Science, Dongguan 523808, China
- Interdisciplinary Institute of Light-Element Quantum Materials and Research Center for Light-Element Advanced Materials, Peking University, Beijing 100871, China
| | - Hao Hong
- State Key Laboratory for Mesoscopic Physics, Frontiers Science Center for Nano-optoelectronics, School of Physics, Peking University, Beijing 100871, China
| | - Kaihui Liu
- State Key Laboratory for Mesoscopic Physics, Frontiers Science Center for Nano-optoelectronics, School of Physics, Peking University, Beijing 100871, China
- International Center for Quantum Materials, Collaborative Innovation Center of Quantum Matter, Peking University, Beijing 100871, China
| | - Huaibin Shen
- Key Laboratory for Special Functional Materials, Ministry of Education, School of Materials Science and Engineering, Henan University, Kaifeng 475004, China
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Feng Y, Lei X, Zhang L, Wan H, Pan H, Wu J, Zou M, Zhu L, Mi Y. COPB2: a transport protein with multifaceted roles in cancer development and progression. Clin Transl Oncol 2021; 23:2195-2205. [PMID: 34101128 PMCID: PMC8455385 DOI: 10.1007/s12094-021-02630-9] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2021] [Accepted: 04/22/2021] [Indexed: 11/29/2022]
Abstract
The Coatomer protein complex subunit beta 2 (COPB2) is involved in the formation of the COPI coatomer protein complex and is responsible for the transport of vesicles between the Golgi apparatus and the endoplasmic reticulum. It plays an important role in maintaining the integrity of these cellular organelles, as well as in maintaining cell homeostasis. More importantly, COPB2 plays key roles in embryonic development and tumor progression. COPB2 is regarded as a vital oncogene in several cancer types and has been implicated in tumor cell proliferation, survival, invasion, and metastasis. Here, we summarize the current knowledge on the roles of COPB2 in cancer development and progression in the context of the hallmarks of cancer.
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Affiliation(s)
- Y Feng
- Wuxi Medical College, Jiangnan University, Wuxi, 214122, Jiangsu Province, China.,Department of Urology, Affiliated Hospital of Jiangnan University, Wuxi, 214122, Jiangsu Province, China
| | - X Lei
- Wuxi Medical College, Jiangnan University, Wuxi, 214122, Jiangsu Province, China
| | - L Zhang
- Department of Urology, Affiliated Changzhou No. 2 People's Hospital of Nanjing Medical University, Changzhou, 213003, Jiangsu Province, China
| | - H Wan
- Wuxi Medical College, Jiangnan University, Wuxi, 214122, Jiangsu Province, China.,Department of Urology, Affiliated Hospital of Jiangnan University, Wuxi, 214122, Jiangsu Province, China
| | - H Pan
- Department of Urology, Affiliated Hospital of Jiangnan University, Wuxi, 214122, Jiangsu Province, China
| | - J Wu
- Department of Burns and Plastic Surgery, Affiliated Hospital of Jiangnan University, Wuxi, 214122, Jiangsu Province, China
| | - M Zou
- Wuxi Clinical Medicine School of Integrated Chinese and Western Medicine, Nanjing University of Chinese Medicine, Wuxi, 214122, Jiangsu Province, China
| | - L Zhu
- Department of Urology, Affiliated Hospital of Jiangnan University, Wuxi, 214122, Jiangsu Province, China.
| | - Y Mi
- Department of Urology, Affiliated Hospital of Jiangnan University, Wuxi, 214122, Jiangsu Province, China.
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19
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Pan SL, Chen R, Duan SH, Wan H, Luo G, Du ZH, Ge W, Xing QS. [A case of giant left atrial appendage aneurysm: from prenatal diagnosis to postnatal surgery]. Zhonghua Er Ke Za Zhi 2020; 58:845-846. [PMID: 32987467 DOI: 10.3760/cma.j.cn112140-20200317-00252] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- S L Pan
- Heart Center, Qingdao Women and Children's Hospital, Qingdao 266034, China
| | - R Chen
- Heart Center, Qingdao Women and Children's Hospital, Qingdao 266034, China
| | - S H Duan
- Heart Center, Qingdao Women and Children's Hospital, Qingdao 266034, China
| | - H Wan
- Department of Ultrasound, Qingdao Women and Children's Hospital, Qingdao 266034, China
| | - G Luo
- Heart Center, Qingdao Women and Children's Hospital, Qingdao 266034, China
| | - Z H Du
- Heart Center, Qingdao Women and Children's Hospital, Qingdao 266034, China
| | - W Ge
- Department of Radiology, Qingdao Women and Children's Hospital, Qingdao 266034, China
| | - Q S Xing
- Heart Center, Qingdao Women and Children's Hospital, Qingdao 266034, China
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20
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Wan H, Li Z, Wang H, Cai F, Wang L. ST8SIA1 inhibition sensitizes triple negative breast cancer to chemotherapy via suppressing Wnt/β-catenin and FAK/Akt/mTOR. Clin Transl Oncol 2020; 23:902-910. [PMID: 32939659 DOI: 10.1007/s12094-020-02484-7] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Accepted: 08/31/2020] [Indexed: 12/21/2022]
Abstract
BACKGROUND Chemoresistance is the major cause of therapeutic failure in triple negative breast cancer (TNBC). In this work, we investigated the molecular mechanism for the development of TNBC chemoresistance. METHODS mRNA and protein levels of ST8SIA1 were analyzed in chemosensitive and chemoresistant TNBC cells and tissues. Proliferation and survival assays were performed to determine the role of ST8SIA1 in TNBC chemoresistance. RESULTS We found that ST8SIA1 mRNA and protein levels were increased in multiple TNBC cell lines after prolonged exposure to chemotherapeutic drugs. Consistently, retrospective study demonstrated that the majority of TNBC patients who developed chemoresistance displayed upregulation of ST8SIA1. We further found that chemoresistant TNBC cells were more sensitive than chemosensitive cells to ST8SIA1 inhibition in decreasing growth and viability. Consistently, ST8SIA1 inhibition augmented the efficacy of chemotherapy in TNBC cells. Mechanism studies demonstrated that ST8SIA1 inhibition led to suppression of FAK/Akt/mTOR and Wnt/β-catenin signalling pathways. CONCLUSIONS These findings provide an explanation for the heterogeneity of chemotherapy responses across TNBC individuals and reveal the supportive roles of ST8SIA1in TNBC chemoresistance.
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Affiliation(s)
- H Wan
- Department of Oncology, Sanya People's Hospital, Sanya, 572000, China
| | - Z Li
- Department of Oncology, Sanya People's Hospital, Sanya, 572000, China
| | - H Wang
- Department of Pathology, Sanya People's Hospital, Sanya, 572000, China
| | - F Cai
- Department of Pharmacy, Sanya People's Hospital, Sanya, 572000, China
| | - L Wang
- Department of Oncology, Hainan General Hospital, No.19, Xinhua Road, Xiuying District, Haikou, 570311, Hainan, China.
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21
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Abstract
Oral lubrication mediated by mucin and protein containing salivary conditioning films (SCFs) with strong water retainability can get impaired due to disease such as xerostomia, that is, a subjective dry mouth feel associated with the changed salivary composition and low salivary flow rate. Aberrant SCFs in xerostomia patient cause difficulties in speech, mastication, and dental erosion while the prescribed artificial saliva is inadequate to solve the complications on a lasting basis. With the growing aging population, it is urgently needed to propose a new strategy to restore oral lubrication. Existing saliva substitutes often overwhelm the aberrant SCFs, generating inadequate relief. Here we demonstrated that the function of aberrant SCFs in a patient with Sjögren syndrome can be boosted through mucin recruitment by a simple mucoadhesive, chitosan-catechol (Chi-C). Chi-C with different conjugation degrees (Chi-C7.6%, Chi-C14.5%, Chi-C22.4%) was obtained by carbodiimide chemistry, which induced a layered structure composed of a rigid bottom and a soft secondary SCF (S-SCF) after reflow of saliva. The higher conjugation degree of Chi-C generates a higher glycosylated S-SCF by mucin recruitment and a lower friction in vitro. The layered S-SCF extends the "relief period" for Sjögren patient saliva over 7-fold, measured on an ex vivo tongue-enamel friction system. Besides lubrication, Chi-C-treated S-SCF reduces dental erosion depths from 125 to 70 μm. Chi-C shows antimicrobial activity against Streptococcus mutans. This research provides a new key insight in restoring the functionality of conditioning film at articulating tissues in living systems.
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Affiliation(s)
- H. Wan
- Department of Biomedical
Engineering, University of Groningen and University Medical Center
Groningen, Groningen, the Netherlands
| | - A. Vissink
- Department of Oral Maxillofacial
Surgery, University of Groningen and University Medical Center Groningen,
Groningen, the Netherlands
| | - P.K. Sharma
- Department of Biomedical
Engineering, University of Groningen and University Medical Center
Groningen, Groningen, the Netherlands
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Li X, Ahmad US, Huang Y, Uttagomol J, Rehman A, Zhou K, Warnes G, McArthur S, Parkinson EK, Wan H. Desmoglein-3 acts as a pro-survival protein by suppressing reactive oxygen species and doming whilst augmenting the tight junctions in MDCK cells. Mech Ageing Dev 2019; 184:111174. [PMID: 31678215 DOI: 10.1016/j.mad.2019.111174] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [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: 03/14/2019] [Revised: 10/15/2019] [Accepted: 10/21/2019] [Indexed: 11/16/2022]
Abstract
Kidney disease prevalence increases with age, with a common feature of the disease being defects in the epithelial tight junctions. Emerging evidence suggests that the desmosomal adhesion protein Desmoglein-3 (Dsg3) functions beyond the desmosomal adhesion and plays a role in regulating the fundamental pathways that govern cell fate decisions in response to environmental chemical and mechanical stresses. In this study, we explored the role of Dsg3 on dome formation, reactive oxygen species (ROS) production and transepithelial electrical resistance (TER) in MDCK cells, a kidney epithelial cell model widely used to study cell differentiation and tight junction formation and integrity. We show that overexpression of Dsg3 constrained nuclear ROS production and cellular doming in confluent cell cultures and these features coincided with augmented TER and enhanced tight junction integrity. Conversely, cells expressing dominant-negative Dsg3ΔC mutants exhibited heightened ROS production and accelerated doming, accompanied by increased apoptosis, as well as cell proliferation, with massive disruption in F-actin organization and accumulation, and alterations in tight junctions. Inhibition of actin polymerization and protein synthesis was able to sufficiently block dome formation in mutant populations. Taken together, these findings underscore that Dsg3 has a role in controlling cellular viability and differentiation as well as the functional integrity of tight junctions in MDCK cells.
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Affiliation(s)
- Xiao Li
- Centre for Immunobiology and Regenerative Medicine, Institute of Dentistry, Barts and The London, School of Medicine and Dentistry, Queen Mary University of London, United Kingdom
| | - Usama Sharif Ahmad
- Centre for Immunobiology and Regenerative Medicine, Institute of Dentistry, Barts and The London, School of Medicine and Dentistry, Queen Mary University of London, United Kingdom
| | - Yunying Huang
- Centre for Immunobiology and Regenerative Medicine, Institute of Dentistry, Barts and The London, School of Medicine and Dentistry, Queen Mary University of London, United Kingdom
| | - Jutamas Uttagomol
- Centre for Immunobiology and Regenerative Medicine, Institute of Dentistry, Barts and The London, School of Medicine and Dentistry, Queen Mary University of London, United Kingdom
| | - Ambreen Rehman
- Centre for Immunobiology and Regenerative Medicine, Institute of Dentistry, Barts and The London, School of Medicine and Dentistry, Queen Mary University of London, United Kingdom
| | - Ke Zhou
- CB Joint MHNCRL, Hospital and School of Stomatology, Guizhou Medical University, China
| | - Gary Warnes
- Blizard Institute, Barts and The London, School of Medicine and Dentistry, Queen Mary University of London, United Kingdom
| | - Simon McArthur
- Centre for Immunobiology and Regenerative Medicine, Institute of Dentistry, Barts and The London, School of Medicine and Dentistry, Queen Mary University of London, United Kingdom
| | - Eric Kenneth Parkinson
- Centre for Immunobiology and Regenerative Medicine, Institute of Dentistry, Barts and The London, School of Medicine and Dentistry, Queen Mary University of London, United Kingdom
| | - H Wan
- Centre for Immunobiology and Regenerative Medicine, Institute of Dentistry, Barts and The London, School of Medicine and Dentistry, Queen Mary University of London, United Kingdom.
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23
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Wan H. SUN-PO098: Effect of NRS2002 on Identifying Malnutrition in Cancer Patients Undergoing Radiotherapy. Clin Nutr 2019. [DOI: 10.1016/s0261-5614(19)32732-3] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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24
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DONG X, Xing L, Sun X, Wan H, Yu J, Liu H, Cheng Y. Dynamic Monitoring of Response Heterogeneity between Primary and Metastases Reveals Resistance Molecular Mechanisms in Advanced Non-Small Cell Lung Cancer with Acquired Resistance to EGFR-TKIs. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.1324] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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25
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Wang Y, Wan H, Chen Y, Xia F, Zhang W, Wang C, Fang S, Zhang K, Li Q, Wang N, Lu Y. Association of C-peptide with diabetic vascular complications in type 2 diabetes. Diabetes Metab 2019; 46:33-40. [PMID: 31026551 DOI: 10.1016/j.diabet.2019.04.004] [Citation(s) in RCA: 19] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2018] [Revised: 04/01/2019] [Accepted: 04/07/2019] [Indexed: 12/11/2022]
Abstract
AIM Fasting serum C-peptide is a biomarker of insulin production and insulin resistance, but its association with vascular complications in type 2 diabetes mellitus (T2DM) has never been fully elucidated. This study aimed to investigate whether C-peptide is associated with cardiovascular disease (CVD) and diabetic retinopathy (DR). METHODS A total of 4793 diabetes patients were enrolled from seven communities in Shanghai, China, in 2018. CVD was defined as a self-reported combination of previous diagnoses, including coronary heart disease, myocardial infarction and stroke. DR was examined using fundus photographs. Logistic regression analyses were performed, and multiple imputed data were used to obtain stabilized estimates. RESULTS Prevalence of CVD increased with increasing C-peptide levels (Q1, Q2, Q3 and Q4: 33%, 34%, 37% and 44%, respectively; Pfor trend < 0.001), whereas DR prevalence decreased with increasing C-peptide quartiles (Q1, Q2, Q3 and Q4: 21%, 19%, 15% and 12%, respectively; Pfor trend < 0.001). On logistic regression analysis, C-peptide levels were significantly associated with CVD prevalence (1.27, 95% CI: 1.13-1.42; P < 0.001) and C-peptide quartiles (Q1: reference; Q2: 1.31, 95% CI: 1.00-1.70; Q3: 1.53, 95% CI: 1.16-2.01; Q4: 1.76, 95% CI: 1.32-2.34; Pfor trend < 0.001). Given the interaction between C-peptide and BMI and the association between C-peptide and CVD (Pfor interaction = 0.015), study participants were divided into two subgroups based on BMI which revealed that the association persisted despite different BMI statuses. However, DR prevalence decreased with increasing C-peptide levels (0.73, 95% CI: 0.62-0.86; P < 0.001) and quartiles (Q1: reference; Q2: 1.00, 95% CI: 0.76-1.33; Q3: 0.69, 95% CI: 0.50-0.94; Q4: 0.51, 95% CI: 0.36-0.72; Pfor trend < 0.001). CONCLUSION C-peptide was positively associated with CVD, but inversely associated with DR progression. The association between C-peptide and CVD could be due to associated metabolic risk factors.
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Affiliation(s)
- Y Wang
- Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - H Wan
- Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - Y Chen
- Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - F Xia
- Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - W Zhang
- Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - C Wang
- Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - S Fang
- Department of Ophthalmology, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - K Zhang
- Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - Q Li
- Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China
| | - N Wang
- Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China.
| | - Y Lu
- Institute and Department of Endocrinology and Metabolism, Shanghai Ninth People's Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200011, China.
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Peng H, Xiao J, Wan H, Shi J, Li J. Severe Gastric Mycormycosis Infection Followed by Cytomegalovirus Pneumonia in a Renal Transplant Recipient: A Case Report and Concise Review of the Literature. Transplant Proc 2019; 51:556-560. [PMID: 30879589 DOI: 10.1016/j.transproceed.2018.12.023] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2018] [Accepted: 12/29/2018] [Indexed: 12/23/2022]
Abstract
Mucormycosis is an uncommonly encountered fungal infection in solid-organ transplantation, occurring most often gastrointestinally. The most common and fatal infectious disease is cytomegalovirus (CMV) pneumonia, which may result in acute respiratory distress syndrome (ARDS), with rapid onset. Early diagnosis, active treatment, and rational reduction of immunosuppressants are crucial for successful kidney transplantation. We performed successful treatment for both mucormycosis and CMV pneumonia and adjusted the tacrolimus dose accordingly. The case we describe was that of a 47-year-old woman with history of renal transplantation 1 month earlier. She presented with chest pain and gastrointestinal bleeding and was diagnosed with gastric mucormycosis and a secondary episode of hospital-acquired pneumonia. Preemptive therapy, which included liposomal amphotericin B and posaconazole, was adminstered when voriconazole proved to be unhelpful and before histologic reports of gastric mucormycosis. Moreover, CMV re-activation was confirmed by CMV antibody detection, and we administered gancyclovir and thymosin α1 but reduced the strength of the immunosuppressive drugs. Fourteen days after the aforementioned therapy, the patient began to recover and she was discharged on day 81 postoperatively. We conclude that preemptive treatment is critical for severe infection in renal transplant recipients, especially with the rarely seen gastric mucormycosis and with ARDS. In addition, immunoregulated agents, such as asthymosin α1, are also of great value in renal transplant recipients in the setting of opportunistic pathogen infections.
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Affiliation(s)
- H Peng
- Department of Pharmacy, the First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China; Department of Transplantation & General Surgery, the First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - J Xiao
- Department of Transplantation & General Surgery, the First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - H Wan
- Department of Transplantation & General Surgery, the First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - J Shi
- Department of Transplantation & General Surgery, the First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - J Li
- Department of Transplantation & General Surgery, the First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi, China.
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Wan H, Wang Y, Ai J, Brathwaite S, Ni H, Macdonald R, Hol E, Meijers J, Vergouwen M. Role of von Willebrand factor and ADAMTS-13 in early brain injury after experimental subarachnoid hemorrhage. J Thromb Haemost 2018; 16:1413-1422. [PMID: 29729651 PMCID: PMC6055612 DOI: 10.1111/jth.14136] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Indexed: 11/29/2022]
Abstract
Essentials von Willebrand Factor (VWF) and ADAMTS13 may affect early injury after subarachnoid hemorrhage (SAH). Early brain injury was assessed in VWF-/- , ADAMTS13-/- and recombinant (r) ADAMTS13 treated mice. VWF-/- and rADAMTS13 treated mice had less brain injury than ADAMTS13-/- and wild-type mice. Early administration of rADAMTS13 may improve outcome after SAH by reducing early brain injury. SUMMARY Background Early brain injury is an important determinant of poor functional outcome and case fatality after aneurysmal subarachnoid hemorrhage (SAH), and is associated with early platelet aggregation. No treatment exists for early brain injury after SAH. We investigated whether von Willebrand factor (VWF) is involved in the pathogenesis of early brain injury, and whether ultra-early treatment with recombinant ADAMTS-13 (rADAMTS-13) reduces early brain injury after experimental SAH. Methods Experimental SAH in mice was induced by prechiasmatic injection of non-anticoagulated blood from a littermate. The following experimental SAH groups were investigated: C57BL/6J control (n = 21), VWF-/- (n = 25), ADAMTS-13-/- (n = 23), and C57BL/6J treated with rADAMTS-13 (n = 26). Mice were killed at 2 h after SAH. Primary outcome measures were microglial activation (IBA-1 surface area) and neuronal injury (number of cleaved caspase-3-positive neurons). Results As compared with controls, microglial activation was decreased in VWF-/- mice (mean difference of - 20.0%, 95% confidence interval [CI] - 4.0% to - 38.6%), increased in ADAMTS-13-/- mice (mean difference of + 34.0%, 95% CI 16.2-51.7%), and decreased in rADAMTS-13-treated mice (mean difference of - 22.1%, 95% CI - 3.4% to - 39.1%). As compared with controls (185 neurons, interquartile range [IQR] 133-353), neuronal injury in the cerebral cortex was decreased in VWF-/- mice (63 neurons, IQR 25-78), not changed in ADAMTS-13-/- mice (53 neurons, IQR 26-221), and reduced in rADAMTS-13-treated mice (45 neurons, IQR 9-115). Conclusions Our findings suggest that VWF is involved in the pathogenesis of early brain injury, and support the further study of rADAMTS-13 as a treatment option for early brain injury after SAH.
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Affiliation(s)
- H. Wan
- Division of NeurosurgerySt Michael's HospitalUniversity of TorontoTorontoOntarioCanada
- Labatt Family Centre of Excellence in Brain Injury and Trauma ResearchUniversity of TorontoTorontoOntarioCanada
- Keenan Research Centre for Biomedical Science and the Li Ka Shing Knowledge Institute of St Michael's HospitalUniversity of TorontoTorontoOntarioCanada
- Department of Medical BiophysicsUniversity of TorontoTorontoOntarioCanada
| | - Y. Wang
- Keenan Research Centre for Biomedical Science and the Li Ka Shing Knowledge Institute of St Michael's HospitalUniversity of TorontoTorontoOntarioCanada
- Department of Laboratory Medicine and PathobiologyUniversity of TorontoTorontoOntarioCanada
- Canadian Blood ServicesTorontoOntarioCanada
| | - J. Ai
- Division of NeurosurgerySt Michael's HospitalUniversity of TorontoTorontoOntarioCanada
- Labatt Family Centre of Excellence in Brain Injury and Trauma ResearchUniversity of TorontoTorontoOntarioCanada
- Keenan Research Centre for Biomedical Science and the Li Ka Shing Knowledge Institute of St Michael's HospitalUniversity of TorontoTorontoOntarioCanada
| | - S. Brathwaite
- Division of NeurosurgerySt Michael's HospitalUniversity of TorontoTorontoOntarioCanada
- Labatt Family Centre of Excellence in Brain Injury and Trauma ResearchUniversity of TorontoTorontoOntarioCanada
- Keenan Research Centre for Biomedical Science and the Li Ka Shing Knowledge Institute of St Michael's HospitalUniversity of TorontoTorontoOntarioCanada
- Department of PhysiologyUniversity of TorontoTorontoOntarioCanada
| | - H. Ni
- Keenan Research Centre for Biomedical Science and the Li Ka Shing Knowledge Institute of St Michael's HospitalUniversity of TorontoTorontoOntarioCanada
- Department of Medical BiophysicsUniversity of TorontoTorontoOntarioCanada
- Canadian Blood ServicesTorontoOntarioCanada
- Department of PhysiologyUniversity of TorontoTorontoOntarioCanada
- CCOA Therapeutics IncTorontoOntarioCanada
| | - R.L. Macdonald
- Division of NeurosurgerySt Michael's HospitalUniversity of TorontoTorontoOntarioCanada
- Labatt Family Centre of Excellence in Brain Injury and Trauma ResearchUniversity of TorontoTorontoOntarioCanada
- Keenan Research Centre for Biomedical Science and the Li Ka Shing Knowledge Institute of St Michael's HospitalUniversity of TorontoTorontoOntarioCanada
- Department of Laboratory Medicine and PathobiologyUniversity of TorontoTorontoOntarioCanada
- Department of PhysiologyUniversity of TorontoTorontoOntarioCanada
- Department of SurgeryUniversity of TorontoTorontoOntarioCanada
| | - E.M. Hol
- Brain Center Rudolf MagnusDepartment of Translational NeurosciencesUniversity Medical Center UtrechtUtrechtThe Netherlands
- Netherlands Institute of NeuroscienceAn Institute of the Royal Netherlands Academy of Arts and SciencesAmsterdamThe Netherlands
| | - J.C.M. Meijers
- Department of Plasma ProteinsSanquin ResearchAmsterdamThe Netherlands
- Department of Experimental Vascular MedicineAcademic Medical CenterUniversity of AmsterdamAmsterdamThe Netherlands
| | - M.D.I. Vergouwen
- Brain Center Rudolf MagnusDepartment of Neurology and NeurosurgeryUniversity Medical Center UtrechtUtrechtthe Netherlands
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Wan H, Zhang Z, Zhu Y. PO-109 Particle therapy reduces weight loss and toxicities among patients with head and neck cancer. ESMO Open 2018. [DOI: 10.1136/esmoopen-2018-eacr25.634] [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: 11/04/2022] Open
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29
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Huang Y, Chatooah ND, Qi T, Wang G, Ma L, Ying Q, Lan Y, Song Y, Li C, Chu K, Chen P, Xu W, Wan H, Cai Y, Zhou J. Health-related quality of life and its associated factors in Chinese middle-aged women. Climacteric 2018; 21:483-490. [PMID: 29856658 DOI: 10.1080/13697137.2018.1476133] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023]
Affiliation(s)
- Y. Huang
- Department of Gynecology, Women’s Hospital, School of Medicine, Zhejiang University, Hangzhou, People’s Republic of China
| | - N. D. Chatooah
- Department of Gynecology, Women’s Hospital, School of Medicine, Zhejiang University, Hangzhou, People’s Republic of China
| | - T. Qi
- Department of Gynecology, Women’s Hospital, School of Medicine, Zhejiang University, Hangzhou, People’s Republic of China
| | - G. Wang
- Department of Gynecology, Women’s Hospital, School of Medicine, Zhejiang University, Hangzhou, People’s Republic of China
| | - L. Ma
- Department of Gynecology, Women’s Hospital, School of Medicine, Zhejiang University, Hangzhou, People’s Republic of China
| | - Q. Ying
- Zhejiang Cancer Institute, Zhejiang Cancer Hospital, Hangzhou, People’s Republic of China
| | - Y. Lan
- Department of Gynecology, Women’s Hospital, School of Medicine, Zhejiang University, Hangzhou, People’s Republic of China
| | - Y. Song
- Department of Gynecology, Women’s Hospital, School of Medicine, Zhejiang University, Hangzhou, People’s Republic of China
| | - C. Li
- Department of Gynecology, Women’s Hospital, School of Medicine, Zhejiang University, Hangzhou, People’s Republic of China
| | - K. Chu
- Department of Gynecology, Women’s Hospital, School of Medicine, Zhejiang University, Hangzhou, People’s Republic of China
| | - P. Chen
- Department of Gynecology, Women’s Hospital, School of Medicine, Zhejiang University, Hangzhou, People’s Republic of China
| | - W. Xu
- Department of Gynecology, Women’s Hospital, School of Medicine, Zhejiang University, Hangzhou, People’s Republic of China
| | - H. Wan
- Maternal and Child Health & Family Planning Service Center, Gongshu District, Hangzhou, People’s Republic of China
| | - Y. Cai
- Maternal and Child Health & Family Planning Service Center, Gongshu District, Hangzhou, People’s Republic of China
| | - J. Zhou
- Department of Gynecology, Women’s Hospital, School of Medicine, Zhejiang University, Hangzhou, People’s Republic of China
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Uttagomol J, Águedo A, Connelly J, Wan H. 858 Desmoglein 3 acts as a mechanosensor in keratinocytes. J Invest Dermatol 2018. [DOI: 10.1016/j.jid.2018.03.869] [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: 10/17/2022]
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Rehman A, Cai Y, Jedliková H, Harwood C, Bergamaschi D, Wan H. 1347 Desmoglein-3 acts as an anti-stress protein via suppression of p53. J Invest Dermatol 2018. [DOI: 10.1016/j.jid.2018.03.1364] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
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Li G, Liu M, Zhang S, Wan H, Zhang Q, Yue R, Yan X, Wang X, Wang Z, Sun Y. Essential Role of IFT140 in Promoting Dentinogenesis. J Dent Res 2017; 97:423-431. [PMID: 29195058 DOI: 10.1177/0022034517741283] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023] Open
Abstract
Primary cilia, with highly regulated cellular sensory functions, play key roles in tissue development and function maintenance. Intraflagellar transport 140 (IFT140) is a subunit of IFT complex A, which is specialized for retrograde transportation in cilia. Mutations of Ift140 are usually associated with syndromic ciliopathy and may cause isolated diseases such as retinal dystrophy, short ribs, and polycystic kidney. However, the role of IFT140 in tooth development has not been well investigated. In this study, a close relationship between IFT140 and dentin formation is disclosed. During tooth development, IFT140 was highly expressed in odontoblasts. To further understand the role of IFT140 in dentinogenesis, Ift140flox/flox/Osx-Cre mouse was generated. The dentin thickness of Ift140flox/flox/Osx-Cre mouse is thinner and the dentin formation is slower than that in control. In vitro, deletion of IFT140 in odontoblasts led to poor odontogenic differentiation, abnormal primary cilia, and decreased Sonic hedgehog signaling molecules. More important, due to loss of primary cilia in odontoblasts by IFT140 deletion, reparative dentin formation was impaired in a tooth-drilling model. These results suggest that cilia gene IFT140 is essential in promoting dentin formation and reparation.
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Affiliation(s)
- G Li
- 1 Department of Implantology, School & Hospital of Stomatology, Tongji University, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai, China
| | - M Liu
- 2 Department of Endodontics, School & Hospital of Stomatology, Tongji University, Shanghai, China
| | - S Zhang
- 1 Department of Implantology, School & Hospital of Stomatology, Tongji University, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai, China
| | - H Wan
- 1 Department of Implantology, School & Hospital of Stomatology, Tongji University, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai, China
| | - Q Zhang
- 2 Department of Endodontics, School & Hospital of Stomatology, Tongji University, Shanghai, China
| | - R Yue
- 3 School of Life Sciences and Technology, Tongji University, Shanghai, China
| | - X Yan
- 4 State Key Laboratory of Cell Biology, CAS Centre for Excellence in Molecular Cell Science, Institute of Biochemistry and Cell Biology, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai, China
| | - X Wang
- 5 Department of Cell Biology & Institute of Biomedicine, College of Life Science and Technology, Jinan University, Guangzhou, China
| | - Z Wang
- 1 Department of Implantology, School & Hospital of Stomatology, Tongji University, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai, China
| | - Y Sun
- 1 Department of Implantology, School & Hospital of Stomatology, Tongji University, Shanghai Engineering Research Center of Tooth Restoration and Regeneration, Shanghai, China
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Bertholet J, Hansen R, Worm E, Toftegaard J, Wan H, Parikh P, Høyer M, Poulsen P. OC-0464: Validation of a fully automatic real-time liver motion monitoring method on a conventional linac. Radiother Oncol 2017. [DOI: 10.1016/s0167-8140(17)30905-2] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Bertholet J, Wan H, Toftegaard J, Schmidt ML, Chotard F, Parikh PJ, Poulsen PR. Fully automatic segmentation of arbitrarily shaped fiducial markers in cone-beam CT projections. Phys Med Biol 2017; 62:1327-1341. [DOI: 10.1088/1361-6560/aa52f7] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
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Levisetti M, Joh T, Wan H, Liang H, Forgues P, Gumbiner B, Garzone PD. A Phase I Randomized Study of a Specifically Engineered, pH-Sensitive PCSK9 Inhibitor RN317 (PF-05335810) in Hypercholesterolemic Subjects on Statin Therapy. Clin Transl Sci 2016; 10:3-11. [PMID: 27860267 PMCID: PMC5351011 DOI: 10.1111/cts.12430] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2016] [Accepted: 10/04/2016] [Indexed: 01/19/2023] Open
Abstract
This phase I study assessed the safety, tolerability, pharmacokinetics, and pharmacodynamics of RN317 (PF-05335810), a specifically engineered, pH-sensitive, humanized proprotein convertase subtilisin kexin type 9 (PCSK9) monoclonal antibody, in hypercholesterolemic subjects (low-density lipoprotein cholesterol (LDL-C) ≥ 80 mg/dl) 18-70 years old receiving statin therapy. Subjects were randomized to: single-dose placebo, RN317 (subcutaneous (s.c.) 0.3, 1, 3, 6, or intravenous (i.v.) 1, 3, 6 mg/kg), or bococizumab (s.c. 1, 3, or i.v. 1 mg/kg); or multiple-dose RN317 (s.c. 300 mg every 28 days; three doses). Of 133 subjects randomized, 127 completed the study. RN317 demonstrated a longer half-life, greater exposure, and increased bioavailability vs. bococizumab. RN317 was well tolerated, with no subjects discontinuing because of treatment-related adverse events. RN317 lowered LDL-C by up to 52.5% (day 15) following a single s.c. dose of 3.0 mg/kg vs. a maximum of 70% with single-dose bococizumab s.c. 3.0 mg/kg. Multiple dosing of RN317 produced LDL-C reductions of ∼50%, sustained over an 85-day dosing interval.
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Affiliation(s)
| | - T Joh
- Pfizer, San Diego, California, USA
| | - H Wan
- Pfizer, South San Francisco, California, USA
| | - H Liang
- Pfizer, South San Francisco, California, USA
| | - P Forgues
- Pfizer, South San Francisco, California, USA
| | | | - P D Garzone
- Pfizer, South San Francisco, California, USA
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Wan H, Wu S, Wang J, Yang Y, Zhu J, Shao X, Huang B, Zhang H. Body mass index and the risk of all-cause mortality among patients with nonvalvular atrial fibrillation: a multicenter prospective observational study in China. Eur J Clin Nutr 2016; 71:494-499. [PMID: 27782115 DOI: 10.1038/ejcn.2016.183] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/14/2015] [Revised: 07/25/2016] [Accepted: 08/09/2016] [Indexed: 12/18/2022]
Abstract
BACKGROUND/OBJECTIVES High body mass index (BMI) is associated with increased incident atrial fibrillation (AF) and mortality rate. In patients presenting with nonvalvular AF (NVAF), the prognostic relevance of BMI remains unclear. SUBJECTS/METHODS In this prospective observational study, a total of 1759 patients with NVAF (69.9±12.9 years old, 47.9% male) were divided into three clinical settings according to estimated stroke risks (CHADS2 score ⩽1 (low), =2 (moderate) and ⩾3 (high)). The primary outcome was all-cause mortality, and the secondary outcomes included thromboembolism and major bleeding. Cox-proportional hazard models were used to estimate the association between BMI levels and clinical outcomes. RESULTS During a mean follow-up of 1 year representing 1974 patient-years at risk, 256 patients died, 142 suffered from thromboembolism and 17 developed major bleeding. Multivariate adjusted Cox analysis indicated that a BMI of 24.0-27.9 kg/m2 was independently associated with improved survival among all patients (hazard ratio (HR) 0.689, 95% confidence interval (CI) 0.512-0.928; P=0.018) and patients at high stroke risk (HR 0.622, 95% CI 0.410-0.943; P=0.024), but not among those at low or moderate stroke risks. No associations were observed between BMI levels and the incidence of thromboembolic events in various clinical settings. CONCLUSIONS A paradoxical BMI-all-cause mortality risk association was observed in Chinese patients with NVAF, and this association was pronounced among patients at high stroke risk rather than in those at low stroke risk.
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Affiliation(s)
- H Wan
- Emergence and Intensive Care Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.,Department of Cardiology, First Affiliated Hospital, Jinan University, Guangzhou, China
| | - S Wu
- Emergence and Intensive Care Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - J Wang
- Emergence and Intensive Care Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Y Yang
- Emergence and Intensive Care Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - J Zhu
- Emergence and Intensive Care Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - X Shao
- Emergence and Intensive Care Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - B Huang
- Emergence and Intensive Care Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - H Zhang
- Emergence and Intensive Care Center, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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Grantham K, Wan H, Maughan N, Muccigrosso D, Schultejans H, Bera R, Parikh P. Stability of Mean Lung Tumor Position Over the Course of Radiation Therapy as Measured by Continuous Electromagnetic Transponder Tracking. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.2347] [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: 10/20/2022]
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Guan J, Tucker ER, Wan H, Chand D, Danielson LS, Ruuth K, El Wakil A, Witek B, Jamin Y, Umapathy G, Robinson SP, Johnson TW, Smeal T, Martinsson T, Chesler L, Palmer RH, Hallberg B. The ALK inhibitor PF-06463922 is effective as a single agent in neuroblastoma driven by expression of ALK and MYCN. Dis Model Mech 2016; 9:941-52. [PMID: 27483357 PMCID: PMC5047689 DOI: 10.1242/dmm.024448] [Citation(s) in RCA: 52] [Impact Index Per Article: 6.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Accepted: 07/04/2016] [Indexed: 12/24/2022] Open
Abstract
The first-in-class inhibitor of ALK, c-MET and ROS1, crizotinib (Xalkori), has shown remarkable clinical efficacy in treatment of ALK-positive non-small cell lung cancer. However, in neuroblastoma, activating mutations in the ALK kinase domain are typically refractory to crizotinib treatment, highlighting the need for more potent inhibitors. The next-generation ALK inhibitor PF-06463922 is predicted to exhibit increased affinity for ALK mutants prevalent in neuroblastoma. We examined PF-06463922 activity in ALK-driven neuroblastoma models in vitro and in vivo In vitro kinase assays and cell-based experiments examining ALK mutations of increasing potency show that PF-06463922 is an effective inhibitor of ALK with greater activity towards ALK neuroblastoma mutants. In contrast to crizotinib, single agent administration of PF-06463922 caused dramatic tumor inhibition in both subcutaneous and orthotopic xenografts as well as a mouse model of high-risk neuroblastoma driven by Th-ALK(F1174L)/MYCN Taken together, our results suggest PF-06463922 is a potent inhibitor of crizotinib-resistant ALK mutations, and highlights an important new treatment option for neuroblastoma patients.
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Affiliation(s)
- J Guan
- Department of Medical Biochemistry and Cell Biology, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg SE-405 30, Sweden
| | - E R Tucker
- Division of Clinical Studies Cancer Therapeutics, The Institute of Cancer Research, London and Royal Marsden NHS Foundation Trust, Sutton SM2 5NG, UK
| | - H Wan
- Department of Medical Biochemistry and Cell Biology, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg SE-405 30, Sweden
| | - D Chand
- Department of Medical Biochemistry and Cell Biology, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg SE-405 30, Sweden
| | - L S Danielson
- Division of Clinical Studies Cancer Therapeutics, The Institute of Cancer Research, London and Royal Marsden NHS Foundation Trust, Sutton SM2 5NG, UK
| | - K Ruuth
- Department of Medical Biochemistry and Cell Biology, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg SE-405 30, Sweden Department of Molecular Biology, Building 6L, Umeå University, Umeå 901 87, Sweden
| | - A El Wakil
- Department of Medical Biochemistry and Cell Biology, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg SE-405 30, Sweden Department of Molecular Biology, Building 6L, Umeå University, Umeå 901 87, Sweden
| | - B Witek
- Department of Medical Biochemistry and Cell Biology, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg SE-405 30, Sweden Department of Molecular Biology, Building 6L, Umeå University, Umeå 901 87, Sweden
| | - Y Jamin
- Division of Radiotherapy and Imaging, The Institute of Cancer Research, London and Royal Marsden NHS Foundation Trust, Sutton SM2 5NG, UK
| | - G Umapathy
- Department of Medical Biochemistry and Cell Biology, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg SE-405 30, Sweden
| | - S P Robinson
- Division of Radiotherapy and Imaging, The Institute of Cancer Research, London and Royal Marsden NHS Foundation Trust, Sutton SM2 5NG, UK
| | - T W Johnson
- La Jolla Laboratories, Pfizer Worldwide Research and Development, San Diego, CA 92121, USA
| | - T Smeal
- La Jolla Laboratories, Pfizer Worldwide Research and Development, San Diego, CA 92121, USA
| | - T Martinsson
- Department of Clinical Genetics, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg SE-405 30, Sweden
| | - L Chesler
- Division of Clinical Studies Cancer Therapeutics, The Institute of Cancer Research, London and Royal Marsden NHS Foundation Trust, Sutton SM2 5NG, UK
| | - R H Palmer
- Department of Medical Biochemistry and Cell Biology, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg SE-405 30, Sweden
| | - B Hallberg
- Department of Medical Biochemistry and Cell Biology, Institute of Biomedicine, Sahlgrenska Academy, University of Gothenburg, Gothenburg SE-405 30, Sweden
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Danby S, Wan H, Chittock J, Brown K, Wigley A, Cork M. 129 Characterisation of the skin barrier defect in atopic dermatitis using in vivo ATR-FTIR spectroscopy. J Invest Dermatol 2016. [DOI: 10.1016/j.jid.2016.06.147] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Miner PB, Camilleri M, Burton D, Achenbach H, Wan H, Dragone J, Mellgard B. Prucalopride induces high-amplitude propagating contractions in the colon of patients with chronic constipation: a randomized study. Neurogastroenterol Motil 2016; 28:1341-8. [PMID: 27270968 DOI: 10.1111/nmo.12832] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/09/2015] [Accepted: 03/07/2016] [Indexed: 12/15/2022]
Abstract
BACKGROUND This study compared prucalopride, a selective, prokinetic, 5-HT4 receptor agonist, with polyethylene glycol 3350 + electrolytes (PEG3350), an osmotic laxative, on colonic motility parameters, primarily high-amplitude propagating contractions (HAPCs) in patients with chronic constipation. METHODS This randomized, cross-over, reader-blinded study was conducted at a single site in the USA. The study was open to men and women aged 18-75 years who met study inclusion criteria. Colonic manometry catheters were inserted the day before investigation. On the investigation days, patients received oral 2 mg prucalopride or 2 × 13.8 g PEG3350 in solution. The primary endpoint was HAPC count (threshold: mean amplitude ≥100 mmHg, propagation ≥20 cm [HAPC1 ]) in the 12 h after treatment administration. Analyses were also conducted at two co-primary thresholds: mean amplitude ≥75 mmHg, propagation ≥20 cm (HAPC2 ); and mean amplitude ≥75 mmHg, propagation ≥10 cm (HAPC3 ). Secondary endpoints included HAPC area under the curve (AUC), contraction force, amplitude, duration, and propagation velocity. KEY RESULTS Thirteen women were enrolled, with 12 completing the study. Significantly more HAPC1 (8.7 ± 2.06 vs 2.9 ± 2.06; p = 0.012) and HAPC2 (9.0 ± 2.11 vs 3.3 ± 2.11; p = 0.017) were observed in the 12-h periods with prucalopride than with PEG3350. Prucalopride significantly increased mean propagation distance and velocity (HAPC2 ) and mean AUC, force, and amplitude (HAPC3 ) compared with PEG3350. Adverse events were mild or moderate. CONCLUSIONS & INFERENCES Prucalopride was superior to PEG3350 in inducing HAPCs in patients with chronic constipation. ClinicalTrials.gov number NCT01707667.
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Affiliation(s)
- P B Miner
- Oklahoma Foundation for Digestive Research, Oklahoma City, OK, USA
| | | | | | | | - H Wan
- Shire, Lexington, MA, USA
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Liu JN, Wang TH, Jia QY, Gao XH, Wan H, Sun WY, Yang XL, Bao R, Liu JZ, Yu ZJ. Characterization of the Microbial Communities in the Ant Lion Euroleon coreanus (Okamoto) (Neuroptera: Myrmeleontidae). Neotrop Entomol 2016; 45:397-403. [PMID: 27021349 DOI: 10.1007/s13744-016-0388-8] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/07/2015] [Accepted: 02/24/2016] [Indexed: 06/05/2023]
Abstract
Euroleon coreanus (Okamoto) is widely distributed in China, and the larval stage can be treated as traditional Chinese medicine. However, the host-bacterium relationship remains unexplored, as there is a lack of knowledge on the microbial community of ant lions. Hence, in the current study, we explored the microbial community of the larval ant lion E. coreanus using Illumina MiSeq sequencing. Results indicated that a total of 10 phyla, 126 genera, and 145 species were characterized from the second instars of E. coreanus, and most of the microbes were classified in the phylum Proteobacteria. Cronobacter muytjensii was the most abundant species characterized in the whole body and gut of E. coreanus, and the unclassified species in the genera Brevundimonas and Lactobacillus were relatively more abundant in the head and carcass. In addition, no Wolbachia-like bacteria were detected, whereas bacteria like Francisella tularensis subsp. Holarctica OSU18 and unclassified Rickettsiella were first identified in ant lion E. coreanus.
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Affiliation(s)
- J N Liu
- Key Lab of Animal Physiology, Biochemistry and Molecular Biology of Hebei Province, College of Life Sciences, Hebei Normal Univ, Shijiazhuang,, 050024, People's Republic of China
| | - T H Wang
- Key Lab of Animal Physiology, Biochemistry and Molecular Biology of Hebei Province, College of Life Sciences, Hebei Normal Univ, Shijiazhuang,, 050024, People's Republic of China
| | - Q Y Jia
- Key Lab of Animal Physiology, Biochemistry and Molecular Biology of Hebei Province, College of Life Sciences, Hebei Normal Univ, Shijiazhuang,, 050024, People's Republic of China
| | - X H Gao
- Key Lab of Animal Physiology, Biochemistry and Molecular Biology of Hebei Province, College of Life Sciences, Hebei Normal Univ, Shijiazhuang,, 050024, People's Republic of China
| | - H Wan
- Key Lab of Animal Physiology, Biochemistry and Molecular Biology of Hebei Province, College of Life Sciences, Hebei Normal Univ, Shijiazhuang,, 050024, People's Republic of China
| | - W Y Sun
- Key Lab of Animal Physiology, Biochemistry and Molecular Biology of Hebei Province, College of Life Sciences, Hebei Normal Univ, Shijiazhuang,, 050024, People's Republic of China
| | - X L Yang
- Key Lab of Animal Physiology, Biochemistry and Molecular Biology of Hebei Province, College of Life Sciences, Hebei Normal Univ, Shijiazhuang,, 050024, People's Republic of China
| | - R Bao
- Key Lab of Animal Physiology, Biochemistry and Molecular Biology of Hebei Province, College of Life Sciences, Hebei Normal Univ, Shijiazhuang,, 050024, People's Republic of China
| | - J Z Liu
- Key Lab of Animal Physiology, Biochemistry and Molecular Biology of Hebei Province, College of Life Sciences, Hebei Normal Univ, Shijiazhuang,, 050024, People's Republic of China.
| | - Z J Yu
- Key Lab of Animal Physiology, Biochemistry and Molecular Biology of Hebei Province, College of Life Sciences, Hebei Normal Univ, Shijiazhuang,, 050024, People's Republic of China.
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Lu Y, Chen I, Kashani R, Wan H, Maughan N, Muccigrosso D, Parikh P. SU-C-BRA-01: Interactive Auto-Segmentation for Bowel in Online Adaptive MRI-Guided Radiation Therapy by Using a Multi-Region Labeling Algorithm. Med Phys 2016. [DOI: 10.1118/1.4955562] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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Wan H, Tseung C, Beltran C. TU-AB-BRC-09: Fast Dose-Averaged LET and Biological Dose Calculations for Proton Therapy Using Graphics Cards. Med Phys 2016. [DOI: 10.1118/1.4957403] [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: 11/07/2022] Open
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Fischer-Valuck B, Mazur T, Acharya S, Wan H, Kashani R, Li H, Zoberi I, Thomas M. Accelerated Partial-Breast Irradiation Utilizing an On-board Magnetic Resonance Image Guided Radiation Therapy System: Evaluation of Intrafraction Motion of the Lumpectomy Cavity. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.591] [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: 10/22/2022]
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Santanam L, Noel C, Wan H, Kashani R, Rankine L, Mazur T, Goddu S, Wooten H, Yaddanapudi S, Green O, Parikh P, Mutic S, Olsen J. Adequacy of Gating Margins for Abdominal Tumors of Patients Treated With Real-Time MR Guided Radiation Therapy. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.521] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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Wan H, Poulsen P, Parikh P. A Fully Automated Motion Assessment and Gated Patient Setup in Radiation Therapy. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.1955] [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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Gao Y, Lau E, Wan H, Lo Y, Mok M. AB0596 Systemic Lupus Erythematosus Patients with Past Neuropsychiatric Involvement is Associated with Worse Cognitive Impairment: A Longitudinal Study. Ann Rheum Dis 2015. [DOI: 10.1136/annrheumdis-2015-eular.2460] [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: 11/04/2022]
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Wan H, Pless R, Parikh P. WE-G-BRD-03: Real-Time Tumor Motion Tracking in Low Field Cine-MR Images. Med Phys 2015. [DOI: 10.1118/1.4926059] [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: 11/07/2022] Open
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