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Xu Z, Wang H, Jiang S, Teng J, Zhou D, Chen Z, Wen C, Xu Z. Brain Pathology in COVID-19: Clinical Manifestations and Potential Mechanisms. Neurosci Bull 2024; 40:383-400. [PMID: 37715924 PMCID: PMC10912108 DOI: 10.1007/s12264-023-01110-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Accepted: 05/25/2023] [Indexed: 09/18/2023] Open
Abstract
Neurological manifestations of coronavirus disease 2019 (COVID-19) are less noticeable than the respiratory symptoms, but they may be associated with disability and mortality in COVID-19. Even though Omicron caused less severe disease than Delta, the incidence of neurological manifestations is similar. More than 30% of patients experienced "brain fog", delirium, stroke, and cognitive impairment, and over half of these patients presented abnormal neuroimaging outcomes. In this review, we summarize current advances in the clinical findings of neurological manifestations in COVID-19 patients and compare them with those in patients with influenza infection. We also illustrate the structure and cellular invasion mechanisms of SARS-CoV-2 and describe the pathway for central SARS-CoV-2 invasion. In addition, we discuss direct damage and other pathological conditions caused by SARS-CoV-2, such as an aberrant interferon response, cytokine storm, lymphopenia, and hypercoagulation, to provide treatment ideas. This review may offer new insights into preventing or treating brain damage in COVID-19.
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Affiliation(s)
- Zhixing Xu
- First School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Hui Wang
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Siya Jiang
- Second School of Clinical Medicine, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Jiao Teng
- Affiliated Lin'an People's Hospital of Hangzhou Medical College, First People's Hospital of Hangzhou Lin'an District, Lin'an, Hangzhou, 311300, China
| | - Dongxu Zhou
- School of Life Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Zhong Chen
- School of Pharmaceutical Sciences, Zhejiang Chinese Medical University, Hangzhou, 310053, China
- Key Laboratory of Neuropharmacology and Translational Medicine of Zhejiang Province, College of Pharmaceutical Science, Zhejiang Chinese Medical University, Hangzhou, 310053, China
| | - Chengping Wen
- Laboratory of Rheumatology and Institute of TCM Clinical Basic Medicine, College of Basic Medical Science, Zhejiang Chinese Medical University, Hangzhou, 310053, China.
| | - Zhenghao Xu
- Key Laboratory of Neuropharmacology and Translational Medicine of Zhejiang Province, College of Pharmaceutical Science, Zhejiang Chinese Medical University, Hangzhou, 310053, China.
- Laboratory of Rheumatology and Institute of TCM Clinical Basic Medicine, College of Basic Medical Science, Zhejiang Chinese Medical University, Hangzhou, 310053, China.
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Chang L, Liu F, Che GL, Yang QX, Lai SY, Teng J, Duan JX, Jian H, Jiang YM. [The non-bacterial pathogenic and clinical characteristics of acute respiratory tract infection in children in a hospital of pediatric in Sichuan Province from 2019 to 2021]. Zhonghua Yu Fang Yi Xue Za Zhi 2024; 58:219-226. [PMID: 38387954 DOI: 10.3760/cma.j.cn112150-20230928-00232] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 02/24/2024]
Abstract
Objective: To explore the non-bacterial pathogen distribution, epidemiological characteristics, and clinical features of acute respiratory infections in children in Sichuan Province. Methods: Using a retrospective cohort study method, this study selected hospitalized children diagnosed with acute respiratory infections at West China Second Hospital of Sichuan University from February 2019 to January 2021, and tested 13 pathogens using polymerase chain reaction (PCR)-fragment analysis. The children were divided into infant group (<1 year old), toddler group (1 year old ≤ age <3 years old), preschool group (3 years old ≤ age <6 years old) and school-age group (6 years old ≤ age <18 years old). The distribution of pathogen positive rates, seasonal epidemic characteristics, clinical characteristics, and some laboratory test indicators were analyzed in children. Statistical analysis was performed on the results using SPSS 22.0 software, with count data expressed as percentages and inter group comparisons using SPSS 22.0 software χ2 Inspection. Results: A total of 2 922 pediatric patients were included in this study, with 1 748 (59.8%) positive for pathogens detected. Among them, 1 391 (79.6%) were detected as a single pathogen, and 357 (20.4%) were detected as a mixture of two or more pathogens. The most commonly detected pathogens were rhinovirus (HRV) (39.7%), syncytial virus (RSV) (22.8%), and parainfluenza virus (PIV) (12.5%). Pathogen positivity is more common in children under 6 years old (χ2=146.59, P<0.001), with a slightly higher positivity rate in male children (61.3%, 1 047/1 707) than in female children (57.7%, 701/1 215) (χ2=3.91, P=0.048), and compared with pathogen negative children, positive children are more prone to symptoms such as cough, wheezing, and shortness of breath (χ2=259.15, 366.06, 12.48, P<0.001). The distribution of different pathogens varies among children of different age groups, and HRV is more common in children aged 1-3 and 3-6 years old (χ2=9.74, P<0.001), while RSV is more common in children under 1 year old (χ2=178.63, P<0.001), while mycoplasma pneumoniae (MP) and influenza virus (InfA/B) are less common in children under 1 year old (χ2=92.54, 12.90,22.21, P<0.01). The prevalence of multiple pathogens showed seasonal changes. HRV showed a high prevalence trend in spring and autumn, while the prevalence of RSV infection was mainly seen in autumn and winter festivals. The positive rate of different pathogens after the outbreak of novel coronavirus pneumonia was significantly lower than that before the outbreak (χ2=252.68, P<0.001). Conclusion: The detection rate of non-bacterial respiratory pathogens in children in Sichuan Province from 2019 to 2021 is high, which is prone to symptoms such as cough, wheezing, and shortness of breath, with HRV and RSV being the main types. The positive rate of respiratory pathogens varies among different age groups, genders, and seasons.
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Affiliation(s)
- L Chang
- Department of Laboratory Medicine, West China Second University Hospital, Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Sichuan University, Chengdu 610041, China
| | - F Liu
- Department of Laboratory Medicine, West China Second University Hospital, Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Sichuan University, Chengdu 610041, China
| | - G L Che
- Department of Laboratory Medicine, West China Second University Hospital, Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Sichuan University, Chengdu 610041, China
| | - Q X Yang
- Department of Laboratory Medicine, West China Second University Hospital, Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Sichuan University, Chengdu 610041, China
| | - S Y Lai
- Department of Laboratory Medicine, West China Second University Hospital, Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Sichuan University, Chengdu 610041, China
| | - J Teng
- Department of Laboratory Medicine, West China Second University Hospital, Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Sichuan University, Chengdu 610041, China
| | - J X Duan
- Department of Laboratory Medicine, West China Second University Hospital, Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Sichuan University, Chengdu 610041, China
| | - H Jian
- Department of Laboratory Medicine, West China Second University Hospital, Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Sichuan University, Chengdu 610041, China
| | - Y M Jiang
- Department of Laboratory Medicine, West China Second University Hospital, Key Laboratory of Obstetric & Gynecologic and Pediatric Diseases and Birth Defects of Ministry of Education, Sichuan University, Chengdu 610041, China
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Teng J, Qin H, Guo W, Liu J, Sun J, Zhang Z. Effectiveness of sleep interventions to reduce delirium in critically ill patients: A systematic review and meta-analysis. J Crit Care 2023; 78:154342. [PMID: 37302381 DOI: 10.1016/j.jcrc.2023.154342] [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] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2023] [Revised: 05/03/2023] [Accepted: 05/14/2023] [Indexed: 06/13/2023]
Abstract
PURPOSE To analyze the effectiveness of sleep interventions in reducing the incidence and duration of delirium in the ICU. MATERIALS AND METHODS We searched the PubMed, Embase, CINAHL, Web of Science, Scopus, and Cochrane databases for relevant randomized controlled trials from inception to August 2022. Literature screening, data extraction, and quality assessment were performed independently by two investigators. Data from the included studies were analyzed using Stata and TSA software. RESULTS Fifteen randomized controlled trials were eligible. Meta-analysis showed that the sleep intervention was associated with a reduced incidence of delirium in the ICU (RR = 0.73, 95% CI = 0.58 to 0.93, p < 0.001) compared to the control group. The results of the trial sequence analysis further confirm that sleep interventions are effective in reducing the occurrence of delirium. Pooled data from the three dexmedetomidine trials showed significant differences in the incidence of ICU delirium between groups (RR = 0.43, 95% CI = 0.32 to 0.59, p < 0.001). The respective pooled results of other sleep interventions (e.g., light therapy, earplugs, melatonin, and multicomponent nonpharmacologic treatments) did not find a significant effect on reducing the incidence and duration of ICU delirium (p > 0.05). CONCLUSIONS The current evidence suggests that non-pharmacological sleep interventions are not effective in preventing delirium in ICU patients. However, limited by the number and quality of included studies, future well-designed multicenter randomized controlled trials are still needed to validate the results of this study.
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Affiliation(s)
- Jiao Teng
- School of Nursing, Anhui University of Chinese Medicine, Hefei, Anhui Province, China
| | - Hanzhi Qin
- Department of Nursing, The First Affiliated Hospital of University of Science and Technology of China, Hefei, Anhui Province, China.
| | - Wenchao Guo
- School of Nursing, Anhui University of Chinese Medicine, Hefei, Anhui Province, China
| | - Jialong Liu
- School of Nursing, Anhui University of Chinese Medicine, Hefei, Anhui Province, China
| | - Jian Sun
- Department of Emergency Intensive Care Unit, The First Affiliated Hospital of University of Science and Technology of China, Hefei, Anhui Province, China
| | - Zhenwei Zhang
- Department of Emergency Intensive Care Unit, The First Affiliated Hospital of University of Science and Technology of China, Hefei, Anhui Province, China
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Huang Y, Shan X, Ren H, Zhu R, Zhu G, Teng J, Zhang H, Feng C, Yu G. A nonuniform demagnetizing field model for both static and dynamic responses of anisotropic magnetoresistive thin film sensors. J Phys Condens Matter 2023; 36. [PMID: 37832557 DOI: 10.1088/1361-648x/ad0352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/04/2023] [Accepted: 10/13/2023] [Indexed: 10/15/2023]
Abstract
In this paper, an anisotropic magnetoresistive (AMR) thin film sensor which can be used for magnetic scale has been prepared, and its output voltage is about 4.7-4.9 mV V-1. On the basis of the Stoner-Wohlfarth model and with considering the non-uniformity of the demagnetizing field along the width direction of the strips, both the static and dynamic responses of the AMR sensors have been calculated. The results have shown that the calculated results are in agreement with the experimental data. The magnetization rotation in the magnetic sensor strongly depends on the nonuniform demagnetizing field along the width direction. The magnetization at the center is easily rotated into the field direction, and the magnetization at the edge is difficult to be rotated. The smaller the width of the magnetoresistive strip is, the larger both the demagnetizing field at the edge and the saturation field of the magnetic sensor are. The results are helpful for understanding the magnetization rotation of magnetic sensors and developing the magnetic sensors with high performance.
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Affiliation(s)
- Yiya Huang
- Ji Hua Laboratory, Foshan 528200, People's Republic of China
| | - Xin Shan
- Ji Hua Laboratory, Foshan 528200, People's Republic of China
| | - Hongyu Ren
- Ji Hua Laboratory, Foshan 528200, People's Republic of China
| | - Ronggui Zhu
- Department of Materials Physics and Chemistry, University of Science and Technology Beijing, Beijing 100083, People's Republic of China
| | - Guanlun Zhu
- Ji Hua Laboratory, Foshan 528200, People's Republic of China
| | - Jiao Teng
- Department of Materials Physics and Chemistry, University of Science and Technology Beijing, Beijing 100083, People's Republic of China
| | - Hui Zhang
- Ji Hua Laboratory, Foshan 528200, People's Republic of China
| | - Chun Feng
- Department of Materials Physics and Chemistry, University of Science and Technology Beijing, Beijing 100083, People's Republic of China
| | - Guanghua Yu
- Department of Materials Physics and Chemistry, University of Science and Technology Beijing, Beijing 100083, People's Republic of China
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Yang C, Zhang B, Fu L, Wang Z, Teng J, Shao R, Wu Z, Chang X, Ding J, Wang L, Han X. Chemical inhomogeneity-induced profuse nanotwinning and phase transformation in AuCu nanowires. Nat Commun 2023; 14:5705. [PMID: 37709777 PMCID: PMC10502134 DOI: 10.1038/s41467-023-41485-2] [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] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2023] [Accepted: 09/05/2023] [Indexed: 09/16/2023] Open
Abstract
Nanosized metals usually exhibit ultrahigh strength but suffer from low homogeneous plasticity. The origin of a strength-ductility trade-off has been well studied for pure metals, but not for random solid solution (RSS) alloys. How RSS alloys accommodate plasticity and whether they can achieve synergy between high strength and superplasticity has remained unresolved. Here, we show that face-centered cubic (FCC) RSS AuCu alloy nanowires (NWs) exhibit superplasticity of ~260% and ultrahigh strength of ~6 GPa, overcoming the trade-off between strength and ductility. These excellent properties originate from profuse hexagonal close-packed (HCP) phase generation (2H and 4H phases), recurrence of reversible FCC-HCP phase transition, and zigzag-like nanotwin generation, which has rarely been reported before. Such a mechanism stems from the inherent chemical inhomogeneity, which leads to widely distributed and overlapping energy barriers for the concurrent activation of multiple plasticity mechanisms. This naturally implies a similar deformation behavior for other highly concentrated solid-solution alloys with multiple principal elements, such as high/medium-entropy alloys. Our findings shed light on the effect of chemical inhomogeneity on the plastic deformation mechanism of solid-solution alloys.
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Affiliation(s)
- Chengpeng Yang
- Faculty of Materials and Manufacturing, Institute of Microstructure and Property of Advanced Materials, Beijing University of Technology, Beijing, 100124, China
| | - Bozhao Zhang
- Center for Alloy Innovation and Design, State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, China
| | - Libo Fu
- Faculty of Materials and Manufacturing, Institute of Microstructure and Property of Advanced Materials, Beijing University of Technology, Beijing, 100124, China
| | - Zhanxin Wang
- Faculty of Materials and Manufacturing, Institute of Microstructure and Property of Advanced Materials, Beijing University of Technology, Beijing, 100124, China
| | - Jiao Teng
- Department of Material Physics and Chemistry, University of Science and Technology Beijing, Beijing, 100083, China
| | - Ruiwen Shao
- Beijing Advanced Innovation Center for Intelligent Robots and Systems, School of Medical Technology, Beijing Institute of Technology, Beijing, 100081, China
| | - Ziqi Wu
- Beijing Advanced Innovation Center for Intelligent Robots and Systems, School of Medical Technology, Beijing Institute of Technology, Beijing, 100081, China
| | - Xiaoxue Chang
- Beijing Advanced Innovation Center for Intelligent Robots and Systems, School of Medical Technology, Beijing Institute of Technology, Beijing, 100081, China
| | - Jun Ding
- Center for Alloy Innovation and Design, State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an, China.
| | - Lihua Wang
- Faculty of Materials and Manufacturing, Institute of Microstructure and Property of Advanced Materials, Beijing University of Technology, Beijing, 100124, China.
| | - Xiaodong Han
- Faculty of Materials and Manufacturing, Institute of Microstructure and Property of Advanced Materials, Beijing University of Technology, Beijing, 100124, China.
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Liu Y, Huang H, Yuan J, Zhang Y, Feng H, Chen N, Li Y, Teng J, Jin K, Xue D, Su Y. Erratum: Upper limit of the transition temperature of superconducting materials. Patterns (N Y) 2023; 4:100841. [PMID: 37720332 PMCID: PMC10500020 DOI: 10.1016/j.patter.2023.100841] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 09/19/2023]
Abstract
[This corrects the article DOI: 10.1016/j.patter.2022.100609.].
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Jia T, Teng J. Comment on "Dexmedetomidine sedation for a dental extraction in a patient with known difficult airway". Anaesth Rep 2023; 11:e12200. [PMID: 36798640 PMCID: PMC9925944 DOI: 10.1002/anr3.12200] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/22/2022] [Indexed: 02/16/2023] Open
Affiliation(s)
- T. Jia
- Graduate School of Hebei North UniversityZhangjiakouChina
- The First Affiliated Hospital of Hebei North UniversityZhangjiakouChina
| | - J. Teng
- The First Affiliated Hospital of Hebei North UniversityZhangjiakouChina
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8
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Tan LF, Teng J, Chew ZJ, Choong A, Hong L, Aroos R, Menon PV, Sumner J, Goh KC, Seetharaman SK. Geriatric Services Hub - A Collaborative Frailty Management Model between The Hospital and Community Providers. J Frailty Aging 2023; 12:316-321. [PMID: 38008983 PMCID: PMC10111077 DOI: 10.14283/jfa.2023.23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/18/2022] [Accepted: 03/05/2023] [Indexed: 11/28/2023]
Abstract
BACKGROUND Frailty is an important geriatric syndrome especially with ageing populations. Frailty can be managed or even reversed with community-based interventions delivered by a multi-disciplinary team. Innovation is required to find community frailty models that can deliver cost-effective and feasible care to each local context. OBJECTIVES We share pilot data from our Geriatric Service Hub (GSH) which is a novel frailty care model in Singapore that identifies and manages frailty in the community, supported by a hospital-based multi-disciplinary team. METHODS We describe in detail our GSH model and its implementation. We performed a retrospective data analysis on patient characteristics, uptake, prevalence of frailty and sarcopenia and referral rates for multi-component interventions. RESULTS A total of 152 persons attended between January 2020 to May 2021. Majority (59.9%) were female and mean age was 81.0 ± 7.1 years old. One-fifth (21.1%) of persons live alone. Mean Charlson Co-morbidity Index was 5.2 ± 1.8. Based on the clinical frailty risk scale (CFS), 31.6% were vulnerable, 51.3% were mildly frail and 12.5% were moderately frail. Based on SARC-F screening, 45.3% were identified to be sarcopenic whilst 56.9% had a high concern about falling using the Falls-Efficacy Scale-International. BMD scans were done for 41.4% of participants, of which 58.7% were started on osteoporosis treatment. In terms of referrals to allied health professionals, 87.5% were referred for physiotherapy, 71.1% for occupational therapy and 50.7% to dieticians. CONCLUSION The GSH programme demonstrates a new local model of partnering with community service providers to bring comprehensive population level frailty screening and interventions to pre-frail and frail older adults. Our study found high rates of frailty, sarcopenia and fear of falling in community-dwelling older adults who were not presently known to geriatric care services.
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Affiliation(s)
- L F Tan
- Li Feng Tan, Alexandra Health Pte Ltd: National Healthcare Group, Singapore, Singapore, E-Mail: ;
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Han Y, Ruan Y, Xue M, Wu Y, Shi M, Song Z, Zhou Y, Teng J. Effect of Annealing Time on the Cyclic Characteristics of Ceramic Oxide Thin Film Thermocouples. Micromachines (Basel) 2022; 13:1970. [PMID: 36422398 PMCID: PMC9694502 DOI: 10.3390/mi13111970] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 10/19/2022] [Revised: 10/31/2022] [Accepted: 11/11/2022] [Indexed: 06/16/2023]
Abstract
Oxide thin film thermocouples (TFTCs) are widely used in high-temperature environment measurements and have the advantages of good stability and high thermoelectric voltage. However, different annealing processes affect the performance of TFTCs. This paper studied the impact of different annealing times on the cyclic characteristics of ceramic oxide thin film thermocouples. ITO/In2O3 TFTCs were prepared on alumina ceramics by a screen printing method, and the samples were annealed at different times. The microstructure of the ITO film was studied by scanning electron microscopy (SEM), X-ray diffraction (XRD), and X-ray photoelectron spectroscopy (XPS). The results show that when the annealing temperature is fixed, the stability of the thermocouple is worst when it is annealed for 2 h. Extending the annealing time can improve the properties of the film, increase the density, slow down oxidation, and enhance the thermal stability of the thermocouple. The thermal cycle test results show that the sample can reach five temperature rise and fall cycles, more than 50 h, and can meet the needs of stable measurement in high temperature and harsh environments.
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Affiliation(s)
- Yuning Han
- Department of Electronic Information, Beijing Information Science and Technology University, Beijing 100192, China
| | - Yong Ruan
- Department of Precision Instruments, Tsinghua University, Beijing 100084, China
| | - Meixia Xue
- Department of Materials Physics and Chemistry, University of Science and Technology Beijing, Beijing 100083, China
| | - Yu Wu
- Department of Precision Instruments, Tsinghua University, Beijing 100084, China
- Qiyuan Laboratory, Beijing 100094, China
| | - Meng Shi
- MEMS Institute of Zibo National High-Tech Industrial Development Zone, Zibo 255000, China
| | - Zhiqiang Song
- MEMS Institute of Zibo National High-Tech Industrial Development Zone, Zibo 255000, China
| | - Yuankai Zhou
- MEMS Institute of Zibo National High-Tech Industrial Development Zone, Zibo 255000, China
| | - Jiao Teng
- Department of Materials Physics and Chemistry, University of Science and Technology Beijing, Beijing 100083, China
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Liu Y, Huang H, Yuan J, Zhang Y, Feng H, Chen N, Li Y, Teng J, Jin K, Xue D, Su Y. Upper limit of the transition temperature of superconducting materials. Patterns (N Y) 2022; 3:100609. [PMID: 36419453 PMCID: PMC9676523 DOI: 10.1016/j.patter.2022.100609] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/12/2022] [Revised: 08/05/2022] [Accepted: 09/21/2022] [Indexed: 11/12/2022]
Abstract
Why are the transition temperatures (T c) of superconducting materials so different? The answer to this question is not only of great significance in revealing the mechanism of high-T c superconductivity but also can be used as a guide for the design of new superconductors. However, so far, it is still challenging to identify the governing factors affecting the T c. In this work, with the aid of machine learning and first-principles calculations, we found a close relevance between the upper limit of the T c and the energy-level distribution of valence electrons. It implies that some additional inter-orbital electron-electron interaction should be considered in the interpretation of high-T c superconductivity.
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Affiliation(s)
- Yang Liu
- Beijing Advanced Innovation Center for Materials Genome Engineering, University of Science and Technology Beijing, Beijing 100083, China
- Institute for Advanced Materials and Technology, University of Science and Technology Beijing, Beijing 100083, China
- Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - Haiyou Huang
- Beijing Advanced Innovation Center for Materials Genome Engineering, University of Science and Technology Beijing, Beijing 100083, China
- Institute for Advanced Materials and Technology, University of Science and Technology Beijing, Beijing 100083, China
| | - Jie Yuan
- Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - Yan Zhang
- Beijing Advanced Innovation Center for Materials Genome Engineering, University of Science and Technology Beijing, Beijing 100083, China
- Institute for Advanced Materials and Technology, University of Science and Technology Beijing, Beijing 100083, China
| | - Hongyuan Feng
- Beijing Advanced Innovation Center for Materials Genome Engineering, University of Science and Technology Beijing, Beijing 100083, China
- Institute for Advanced Materials and Technology, University of Science and Technology Beijing, Beijing 100083, China
| | - Ning Chen
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Yang Li
- Department of Engineering Science and Materials, University of Puerto Rico, Mayaguez, PR 00681-9000, USA
| | - Jiao Teng
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China
| | - Kui Jin
- Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - Dezhen Xue
- State Key Laboratory for Mechanical Behavior of Materials, Xi’an Jiaotong University, Xi’an 710049, China
| | - Yanjing Su
- Beijing Advanced Innovation Center for Materials Genome Engineering, University of Science and Technology Beijing, Beijing 100083, China
- Institute for Advanced Materials and Technology, University of Science and Technology Beijing, Beijing 100083, China
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Ramkumar S, Nerlekar N, Maggiore P, Teng J, Cimenkaya C, Be K, Baumann A, Nicholls S, Moir S. The mitral to aortic/pulmonary velocity-time integral ratio is a simple, feasible and accurate discriminator for echocardiographic evaluation of severe isolated mitral regurgitation. Eur Heart J 2022. [DOI: 10.1093/eurheartj/ehac544.125] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Echocardiographic quantification of mitral regurgitation (MR) remains challenging, requiring dedicated image acquisition, and is limited by potential error from geometric assumptions of annular dimensions. Volume is a product of area and flow and assuming proportional mitral/aortic areas, an increased mitral-inflow volume compared to LV/RV-outflow semi-quantitatively represents greater MR regurgitant volume. Therefore, we investigated the feasibility and diagnostic performance of the mitral-aortic velocity-time integral (VTI) ratio in isolated MR. We also investigated the use of the mitral-pulmonary VTI ratio as an alternative in clinical situations where the LV outflow tract (LVOT) VTI could not be used.
Methods
We reviewed 166 consecutive patients (54 (33% severe MR by multi-parameter integrated expert opinion)). Pulsed-Doppler VTI at the mitral leaflet tips and the left ventricular outflow and continuous-wave Doppler of the right ventricular outflow tract were measured individually and independently by blinded readers (expert and trainee status) to derive the ratio. Receiver operator characteristic area under the curve (AUC) comparison was calculated and compared with effective regurgitant orifice area (EROA >40 mm), regurgitant volume (RVol >6 0mL), vena contracta (VC >0.7 cm), E-velocity >1.2 cm, systolic flow reversal (SFR), left atrial and ventricular dilatation.
Results
Increasing ratio was associated with severe MR (AUC 0.94) with optimal threshold defined at 1.3. This provided significant discrimination for severe MR (AUC 0.81) compared to EROA (0.68), VC (0.52), LV dilatation (0.69), LA dilatation (0.70), SFR (0.73), E-velocity (0.68) all p<0.05, with sensitivity 82% and specificity 94%. The mitral-pulmonary VTI ratio demonstrated similar discrimination (AUC 0.92) with optimal threshold defined at 1.14. Excellent inter-observer reproducibility (intra-class correlation 0.97) was seen between trainee and expert readers. There was no difference in AUC comparison by MR mechanism or patient rhythm.
Conclusions
The mitral-aortic or mitral-pulmonary VTI ratio is a simple, geometric-free parameter feasibly reproducible from routine echocardiographic datasets and is an excellent discriminative tool for severe MR. Readers should consider integration of this parameter in routine reporting.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
| | | | | | - J Teng
- Monash Heart , Melbourne , Australia
| | | | - K Be
- Monash Heart , Melbourne , Australia
| | - A Baumann
- Monash Heart , Melbourne , Australia
| | | | - S Moir
- Monash Heart , Melbourne , Australia
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12
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Jin Z, Yang Z, Sheng Z, Teng J, Chen W, Chen F, Gong M. USP36 Facilitates the Progression of Hepatocellular Carcinoma by Upregulating Myc. J Biomed Nanotechnol 2022. [DOI: 10.1166/jbn.2022.3425] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Objective: Our study will explore the function and regulatory mechanism of USP36 in hepatocellular carcinoma (HCC). Methods: USP36-overexpressed and USP36-knockdown cells were established. The USP36 and Myc level were checked by Western blotting and the cell viability
was checked by the MTT method. The apoptotic rate was checked by flow cytometry, while the migration was detected by the Transwell assay. A xenograft model was constructed in nude mice to explore the function of USP36 in HCC. USP36-overexpressed and USP-knockdown cells were constructed by
transfecting pcDNA3.1-USP36 and siRNA-USP36 (si-USP36), respectively. Myc-overexpressed cells were constructed by transfecting pcDNA3.1-Myc. Results: Significantly declined cell viability, increased apoptotic rate, elevated number of migrated cells, downregulated Myc, and repressed
tumor growth were observed in USP36-knockdown HepG2 and HUH7 cells, while opposite results were observed in USP36-overexpressed HepG2 and HUH7 cells. The expression level of Myc was positively regulated by USP36. However, the USP36 level was not regulated by Myc. Lastly, the declined cell
viability, increased apoptotic rate, and elevated number of migrated cells in USP36-knockdown HepG2 cells were dramatically abrogated by the overexpression of Myc. Conclusion: USP36 facilitated the progression of hepatocellular carcinoma by upregulating Myc.
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Affiliation(s)
- Zhaoqing Jin
- Department of General Surgery, First People’s Hospital of Hangzhou Lin’an District (Affiliated Lin’an People’s Hospital, Hangzhou, Medical College), Hangzhou, 310013, China
| | - Ziqiang Yang
- Department of General Surgery, First People’s Hospital of Hangzhou Lin’an District (Affiliated Lin’an People’s Hospital, Hangzhou, Medical College), Hangzhou, 310013, China
| | - Zhen Sheng
- Department of General Surgery, First People’s Hospital of Hangzhou Lin’an District (Affiliated Lin’an People’s Hospital, Hangzhou, Medical College), Hangzhou, 310013, China
| | - Jiao Teng
- Department of General Surgery, First People’s Hospital of Hangzhou Lin’an District (Affiliated Lin’an People’s Hospital, Hangzhou, Medical College), Hangzhou, 310013, China
| | - Weiqing Chen
- Department of General Surgery, First People’s Hospital of Hangzhou Lin’an District (Affiliated Lin’an People’s Hospital, Hangzhou, Medical College), Hangzhou, 310013, China
| | - Feihua Chen
- Department of General Surgery, First People’s Hospital of Hangzhou Lin’an District (Affiliated Lin’an People’s Hospital, Hangzhou, Medical College), Hangzhou, 310013, China
| | - Mouchun Gong
- Department of General Surgery, First People’s Hospital of Hangzhou Lin’an District (Affiliated Lin’an People’s Hospital, Hangzhou, Medical College), Hangzhou, 310013, China
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13
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Teng J, Martini J, Funk T, Connor J, Cook E, Hansen D, Paller A. LB941 Importance of six-month dosing with QTORIN rapamycin to achieve maximal effect in patients with pachyonychia congenita. J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.05.960] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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14
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So J, Fulchand S, Wong C, Li S, Nazaroff J, Gorell E, de Souza M, Murrell D, Teng J, Chiou A, Tang J. 194 Patient-reported disease burden in epidermolysis bullosa simplex (EBS). J Invest Dermatol 2022. [DOI: 10.1016/j.jid.2022.05.201] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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15
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Gallagher JR, Martini J, Carroll S, Small A, Teng J. Annual prevalence estimation of lymphatic malformation with a cutaneous component: observational study of a national representative sample of physicians. Orphanet J Rare Dis 2022; 17:192. [PMID: 35550604 PMCID: PMC9097327 DOI: 10.1186/s13023-022-02336-3] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Accepted: 04/26/2022] [Indexed: 11/11/2022] Open
Abstract
Background Lymphatic malformations (LMs) represent a potentially life-threatening, rare disease of the lymphatic system characterized by development of abnormal vessels, outpouchings, or cysts filled with lymphatic fluid. There are three morphologic types of LMs based on the size of the individual cysts: macrocystic (typically > 2 cm), microcystic (generally < 2 cm), and mixed (includes aspects of both). Macrocystic LMs typically exist beneath the skin and often can involve vascular components and/or organs. Microcystic LMs often have a cutaneous component and clinically present with lymphorrhea, bleeding, pain, itching, malodor, and functional deficits. There are no treatments approved by the US Food and Drug Administration (FDA) for either macrocystic or microcystic lymphatic malformations. The totality of the epidemiologic literature for LM is limited to the incidence of the disease among various birth cohorts. This is the first nationally representative study to estimate the national managed prevalence for patients with microcystic LM or combined LM with a cutaneous component annually across physician specialties likely to manage this condition. We conducted a retrospective observational survey of a nationally representative sample of patient-care physicians in the United States most likely to manage lymphatic malformations with a cutaneous component (LMC). Once recruited, target physicians participated via an electronic questionnaire. We weighted study physician self-estimates of the number of LMC patients treated in the past 12 months to reflect the specialists’ corresponding proportion in the national universe. All patient information was anonymous; no personally identifiable information was collected. Results Of the 420 physicians who visited the study website, 316 agreed to be screened and to participate (75.2% participation rate). Our survey results indicated the estimated number of unique annually managed LMC patients by target specialists is 79,920 (CI 66,600–93,250). This number corresponds to managed prevalence of 24.1 LMC patients per 100,000 population (CI 19.6/100,000–28.4/100,000). Conclusions The study indicates that while rare, LMC affects a substantial number of people in the US (79,920) who are being managed by one or more specialists. By better understanding the prevalence of people living with LMC who require treatment, efforts to both increase disease awareness and to identify underserved populations in need of potential new treatments can be better focused.
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Affiliation(s)
- Jack Ray Gallagher
- Clarity Pharma Research LLC, 2375 E. Main Street, Suite A300, Spartanburg, SC, 29307, USA.
| | - J Martini
- Palvella Therapeutics Inc., 125 Strafford Avenue, Suite 360, Wayne, PA, 19087, USA
| | - S Carroll
- Clarity Pharma Research LLC, 2375 E. Main Street, Suite A300, Spartanburg, SC, 29307, USA
| | - A Small
- Department of Dermatology, Oregon Health and Science University, 3303 S. Bond Ave., Portland, OR, 97239, USA
| | - J Teng
- Stanford University School of Medicine, Lucile Packard Children's Hospital at Stanford, 700 Welch Road, Suite 301; MC5896, Stanford, CA, 94304, USA
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16
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Wang L, Zhang Y, Zeng Z, Zhou H, He J, Liu P, Chen M, Han J, Srolovitz DJ, Teng J, Guo Y, Yang G, Kong D, Ma E, Hu Y, Yin B, Huang X, Zhang Z, Zhu T, Han X. Tracking the sliding of grain boundaries at the atomic scale. Science 2022; 375:1261-1265. [PMID: 35298254 DOI: 10.1126/science.abm2612] [Citation(s) in RCA: 34] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Abstract
Grain boundaries (GBs) play an important role in the mechanical behavior of polycrystalline materials. Despite decades of investigation, the atomic-scale dynamic processes of GB deformation remain elusive, particularly for the GBs in polycrystals, which are commonly of the asymmetric and general type. We conducted an in situ atomic-resolution study to reveal how sliding-dominant deformation is accomplished at general tilt GBs in platinum bicrystals. We observed either direct atomic-scale sliding along the GB or sliding with atom transfer across the boundary plane. The latter sliding process was mediated by movements of disconnections that enabled the transport of GB atoms, leading to a previously unrecognized mode of coupled GB sliding and atomic plane transfer. These results enable an atomic-scale understanding of how general GBs slide in polycrystalline materials.
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Affiliation(s)
- Lihua Wang
- Institute of Microstructure and Property of Advanced Materials, Beijing Key Lab of Microstructure and Property of Advanced Materials, Beijing University of Technology, Beijing 100124, China
| | - Yin Zhang
- Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Zhi Zeng
- Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Hao Zhou
- Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Jian He
- Department of Physics and Astronomy, Clemson University, Clemson, SC 29634 USA
| | - Pan Liu
- Shanghai Key Laboratory of Advanced High-Temperature Materials and Precision Forming, State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200240, P. R. China
| | - Mingwei Chen
- Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, MD 21218, USA
| | - Jian Han
- Department of Materials Science and Engineering, City University of Hong Kong, Kowloon, Hong Kong SAR, China
| | - David J Srolovitz
- Department of Mechanical Engineering, The University of Hong Kong, Hong Kong SAR, China.,International Digital Economy Academy (IDEA), Shenzhen, China
| | - Jiao Teng
- Department of Material Physics and Chemistry, University of Science and Technology Beijing, Beijing 100083, China
| | - Yizhong Guo
- Institute of Microstructure and Property of Advanced Materials, Beijing Key Lab of Microstructure and Property of Advanced Materials, Beijing University of Technology, Beijing 100124, China
| | - Guo Yang
- Institute of Microstructure and Property of Advanced Materials, Beijing Key Lab of Microstructure and Property of Advanced Materials, Beijing University of Technology, Beijing 100124, China
| | - Deli Kong
- Institute of Microstructure and Property of Advanced Materials, Beijing Key Lab of Microstructure and Property of Advanced Materials, Beijing University of Technology, Beijing 100124, China
| | - En Ma
- Center for Alloy Innovation and Design (CAID), State Key Laboratory for Mechanical Behavior of Materials, Xi'an Jiaotong University, Xi'an 710049, China
| | - Yongli Hu
- Beijing Institute of Artificial Intelligence, Faculty of Information Technology, Beijing Key Laboratory of Multimedia and Intelligent Software Technology, Beijing University of Technology, Beijing 100124, China
| | - Baocai Yin
- Beijing Institute of Artificial Intelligence, Faculty of Information Technology, Beijing Key Laboratory of Multimedia and Intelligent Software Technology, Beijing University of Technology, Beijing 100124, China
| | - XiaoXu Huang
- College of Materials Science and Engineering, Chongqing University, Chongqing 40044, China
| | - Ze Zhang
- Institute of Microstructure and Property of Advanced Materials, Beijing Key Lab of Microstructure and Property of Advanced Materials, Beijing University of Technology, Beijing 100124, China.,Department of Materials Science, Zhejiang University, Hangzhou 310008, China
| | - Ting Zhu
- Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA 30332, USA
| | - Xiaodong Han
- Institute of Microstructure and Property of Advanced Materials, Beijing Key Lab of Microstructure and Property of Advanced Materials, Beijing University of Technology, Beijing 100124, China
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17
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Cork MJ, McMichael A, Teng J, Valdez H, Rojo R, Chan G, Zhang F, Myers DE, DiBonaventura M. Impact of oral abrocitinib on signs, symptoms and quality of life among adolescents with moderate-to-severe atopic dermatitis: an analysis of patient-reported outcomes. J Eur Acad Dermatol Venereol 2021; 36:422-433. [PMID: 34743361 PMCID: PMC9299698 DOI: 10.1111/jdv.17792] [Citation(s) in RCA: 17] [Impact Index Per Article: 5.7] [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: 07/06/2021] [Accepted: 10/22/2021] [Indexed: 11/26/2022]
Abstract
Background A significant improvement in clinical signs was demonstrated with abrocitinib relative to placebo in adolescents with moderate‐to‐severe atopic dermatitis (AD) in three phase 3, randomized, double‐blinded, placebo‐controlled studies (JADE TEEN [ClinicalTrials.gov, NCT03796676], JADE MONO‐1 [NCT03349060] and JADE MONO‐2 [NCT03575871]). Objectives To evaluate the impact of abrocitinib on patient‐reported signs/symptoms, including sleep loss and quality of life among adolescents with moderate‐to‐severe AD. Methods JADE TEEN, JADE MONO‐1 and JADE MONO‐2 were conducted in the Asia‐Pacific region, Europe and North America and included patients aged 12–17 years with moderate‐to‐severe AD and inadequate response to ≥ 4 consecutive weeks of topical medication or treatment with systemic therapy for AD. Patients were randomly assigned (1 : 1 : 1, JADE TEEN; 2 : 2 : 1, JADE MONO‐1/‐2) to receive once‐daily oral abrocitinib (200 or 100 mg) or placebo for 12 weeks in combination with topical therapy (JADE TEEN) or as monotherapy (JADE MONO‐1/‐2). Data from adolescent patients in JADE MONO‐1/‐2 were pooled for these analyses. Results At week 12, more adolescents treated with abrocitinib (200 or 100 mg) vs. placebo achieved a ≥ 4‐point improvement from baseline in the Patient‐Oriented Eczema Measure in JADE TEEN (83.9% and 77.0% vs. 60.2%) and JADE MONO‐1/‐2 (83.0% and 69.4% vs. 43.5%) and a ≥ 6‐point improvement from baseline in the Children’s Dermatology Life Quality Index in JADE TEEN (73.8% and 67.5% vs. 56.5%) and JADE MONO‐1/‐2 (70.0% and 57.1% vs. 19.0%). Significant improvements in SCORing Atopic Dermatitis Visual Analog Scale for sleep loss scores were demonstrated with abrocitinib vs. placebo at weeks 2‐12 in JADE TEEN and JADE MONO‐1/‐2. Conclusions Patient‐reported signs/symptoms, including reduction of sleep loss and quality of life, were substantially improved with abrocitinib monotherapy or combination therapy relative to placebo in adolescents with moderate‐to‐severe AD.
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Affiliation(s)
- M J Cork
- Sheffield Dermatology Research, University of Sheffield, Sheffield, UK
| | - A McMichael
- Department of Dermatology, Wake Forest School of Medicine, Winston-Salem, NC, USA
| | - J Teng
- Department of Dermatology, Stanford University, Stanford, CA, USA
| | | | - R Rojo
- Pfizer Inc, Groton, CT, USA
| | - G Chan
- Pfizer Inc, Groton, CT, USA
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18
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Guo Q, Wu Y, Wang D, Han G, Wang X, Fu L, Wang L, He W, Zhu T, Zhu Z, Liu T, Yu G, Teng J. Enhanced negative magnetoresistance near the charge neutral point in Cr doped topological insulator. RSC Adv 2021; 11:13964-13969. [PMID: 35423914 PMCID: PMC8697728 DOI: 10.1039/d1ra02079j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Accepted: 03/27/2021] [Indexed: 11/21/2022] Open
Abstract
Negative magnetoresistance (MR) is not only of great fundamental interest for condensed matter physics and materials science, but also important for practical applications, especially magnetic data storage and sensors. However, the microscopic origin of negative MR is still elusive and the nature of the negative MR in magnetic topological insulators has still not been completely elucidated. Here, we report magnetotransport studies on Cr doped (Bi1-x Sb x )2Te3 topological insulator thin films grown by magnetron sputtering. At the temperature of 2 K, a giant negative MR reaching 61% is observed at H = 2 T. We show that the negative MR is closely related to the position of the Fermi level, and it reaches the maximum when the Fermi level is gated near the charge neutral point. We attribute these results to the Coulomb potential due to the random composition fluctuations in Cr doped (Bi1-x Sb x )2Te3. Our results provide a deeper insight into the mechanism of negative MR, and are helpful to realize the quantum anomalous Hall effect in the sputtered Cr-(Bi1-x Sb x )2Te3 thin-film systems by tuning the Fermi level and reducing disorder effects.
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Affiliation(s)
- Qixun Guo
- Department of Material Physics and Chemistry, University of Science and Technology Beijing Beijing 100083 P. R. China
| | - Yu Wu
- Department of Material Physics and Chemistry, University of Science and Technology Beijing Beijing 100083 P. R. China
- Beijing Tongfang Huachuang Technology Co., Ltd Beijing 100089 P. R. China
| | - Dongwei Wang
- CAS Key Laboratory of Standardization and Measurement for Nanotechnology, National Center for Nanoscience and Technology Beijing 100190 P. R. China
| | - Gang Han
- Collaborative Innovation Center of Advanced Steel Technology, University of Science and Technology Beijing Beijing 100083 P. R. China
| | - Xuemin Wang
- Collaborative Innovation Center of Advanced Steel Technology, University of Science and Technology Beijing Beijing 100083 P. R. China
| | - Libo Fu
- Institute of Microstructure and Property of Advanced Materials, Beijing Key Lab of Microstructure and Property of Advanced Materials, Beijing University of Technology Beijing 100124 P. R. China
| | - Lihua Wang
- Institute of Microstructure and Property of Advanced Materials, Beijing Key Lab of Microstructure and Property of Advanced Materials, Beijing University of Technology Beijing 100124 P. R. China
| | - Wei He
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences Beijing 100190 P. R. China
| | - Tao Zhu
- Beijing National Laboratory for Condensed Matter Physics and Institute of Physics, Chinese Academy of Sciences Beijing 100190 P. R. China
| | - Zhendong Zhu
- National Institute of Metrology Beijing 100029 P. R. China
| | - Tao Liu
- National Engineering Research Center of Electromagnetic Radiation Control Materials, University of Electronic Science and Technology of China Chengdu 610054 P. R. China
| | - Guanghua Yu
- Department of Material Physics and Chemistry, University of Science and Technology Beijing Beijing 100083 P. R. China
| | - Jiao Teng
- Department of Material Physics and Chemistry, University of Science and Technology Beijing Beijing 100083 P. R. China
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19
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Han B, Chu T, Zhong R, Zhong H, Zhang B, Zhang W, Shi C, Qian J, Zhang Y, Chang Q, Zhang X, Dong Y, Teng J, Gao Z, Qiang H, Nie W, Zhao Y, Han Y, Chen Y. OA07.09 Sintilimab in Combination with Anlotinib as First-Line Therapy for Advanced NSCLC: Final Analysis of Primary Endpoints. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.300] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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20
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Abstract
OBJECTIVE The aim of this study was to clarify the biological roles of microRNA-488 and transforming growth factor β1 (TGF-β1) pathway in the occurrence and progression of diabetic nephropathy (DN). MATERIALS AND METHODS Quantitative Real Time-Polymerase Chain Reaction (qRT-PCR) was used to detect the expressions of microRNA-488, fibrinogen factors coII, coIIV, and fibronectin (FN) in Human mesangial cells (HMCs) with high-glucose or low-glucose treatment. After transfection of microRNA-488 mimics or inhibitor, expression levels of coII, coIIV, and FN in HMCs were determined by qRT-PCR and Western blot. Their expressions in HMC cells treated with different doses of TGF-β1 at different time points were also detected. Finally, we evaluated the potential influence of microRNA-488 on TGF-β1-induced fibrosis of HMC cells by qRT-PCR. RESULTS Compared with low-glucose treatment, the expression of microRNA-488 markedly increased in HMCs treated with high-glucose, as well as coII, coIIV, and FN. Overexpression of microRNA-488 remarkably upregulated mRNA and protein levels of coII, coIIV, and FN, whereas microRNA-488 knockdown downregulated their levels. Expression levels of microRNA-488, coII, coIIV, and FN gradually upregulated with the increase of TGF-β1 dose and treatment duration. CONCLUSIONS MicroRNA-488 regulates the development of diabetic nephropathy-induced fibrosis by TGF-β1 pathway.
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Affiliation(s)
- F Sun
- Department of Nephrology, Yantaishan Hospital, Yantai, China.
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21
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Eng V, Saldanha G, Li S, Bailey-Healy I, Teng J, Tang J. 388 Natural history and management of basal cell nevus syndrome: Updates from the gorlin syndrome registry. J Invest Dermatol 2020. [DOI: 10.1016/j.jid.2020.03.396] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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22
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Teng J, Shroot B, Evans H, Schwartz J, Connor J, Valentine J, Hansen C. 501 Trial in progress: VALO study evaluating PTX-022 in adults with moderate-to-severe pachyonychia congenita, a rare, chronically debilitating disease that makes walking difficult or impossible. J Invest Dermatol 2020. [DOI: 10.1016/j.jid.2020.03.510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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Pastor A, Conn J, O'Brien CL, Teng J, Loh M, Collins L, MacIsaac RJ, Bonomo Y. Clinicians feel comfortable discussing alcohol but not illicit drug use with young adults with Type 1 diabetes: a survey of clinicians. Diabet Med 2020; 37:1076-1078. [PMID: 31529510 DOI: 10.1111/dme.14136] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 08/13/2019] [Indexed: 11/29/2022]
Affiliation(s)
- A Pastor
- Department of Addiction Medicine, St Vincent's Hospital Melbourne, Melbourne, Victoria, Australia
- Department of Medicine, University of Melbourne, Melbourne, Victoria, Australia
| | - J Conn
- Department of Medicine, University of Melbourne, Melbourne, Victoria, Australia
- Department of Diabetes and Endocrinology, Royal Melbourne Hospital and University of Melbourne, Melbourne, Victoria, Australia
| | - C L O'Brien
- Mental Health Services, University of Melbourne, Melbourne, Victoria, Australia
- Department of Psychiatry, University of Melbourne, Melbourne, Victoria, Australia
| | - J Teng
- Department of Endocrinology and Diabetes, St Vincent's Hospital Melbourne, University of Melbourne, Melbourne, Victoria, Australia
| | - M Loh
- Department of Endocrinology and Diabetes, St Vincent's Hospital Melbourne, University of Melbourne, Melbourne, Victoria, Australia
| | - L Collins
- Department of Addiction Medicine, St Vincent's Hospital Melbourne, Melbourne, Victoria, Australia
| | - R J MacIsaac
- Department of Medicine, University of Melbourne, Melbourne, Victoria, Australia
- Department of Endocrinology and Diabetes, St Vincent's Hospital Melbourne, University of Melbourne, Melbourne, Victoria, Australia
| | - Y Bonomo
- Department of Addiction Medicine, St Vincent's Hospital Melbourne, Melbourne, Victoria, Australia
- Department of Medicine, University of Melbourne, Melbourne, Victoria, Australia
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Teng J, Ong J, Patanaik A, Zhou J, Chee M, Lim J. 0143 Vigilance Declines Following Sleep Deprivation are Associated with Two Previously Identified Dynamic Connectivity States. Sleep 2020. [DOI: 10.1093/sleep/zsaa056.141] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Abstract
Introduction
Dynamic functional connectivity (DFC) analysis of resting-state fMRI data has been successfully used to track fluctuations in arousal in the human brain. Changes in DFC have also been reported with acute sleep deprivation. Here, we demonstrate that dynamic connectivity states (DCS) previously related to arousal are reproducible, and are associated with individual differences in sustained attention declines after one night of total sleep deprivation.
Methods
32 participants underwent two counterbalanced resting-state fMRI scans: during rested wakefulness (RW) and following total sleep deprivation (SD). They also completed the Psychomotor Vigilance Test (PVT), a sustained attention task that is highly sensitive to the effects of sleep loss. SD vulnerability was computed as the decrease in response speed (∆RS) and increase in lapses (∆lapse) in SD compared with RW.
Dynamic functional connectivity analysis was conducted on rs-fMRI data. Connectivity matrices were clustered to obtain 5 prototypical DCS. We calculated the proportion of time participants spent in each of these DCS, as well as how often participants transitioned between DCSs. Relationships between SD vulnerability and connectivity metrics were then correlated.
Results
We recovered two DCS that were highly similar (ρ = .89-.91) to arousal-related DCS observed in previous work (high arousal state (HAS); low arousal state (LAS)).
After sleep deprivation, the proportion of time spent in the LAS increased significantly (t29=3.16, p=.0039), while there was no significant change in HAS (t29=-1.43, p=.16). We observed significantly more state transitions in RW compared with SD. Change in LAS and HAS across sleep conditions correlated significantly with SD vulnerability (ΔLASxΔRS: r=-0.64, p<.0001; ΔLASxΔlapse: r=0.43, p=.018; ΔHASxΔRS; r=0.43, p=.019; ΔHASxΔlapse; r=-0.39, p=.033). Finally, Δ%transitions was correlated with ΔRS but not Δlapse.
Conclusion
This study adds to the evidence that two specific reproducible DCS are robust markers of arousal and attention, and may be useful indicators of SD vulnerability.
Support
This work was supported by the National Medical Research Council, Singapore (STaR/0015/2013), and the National Research Foundation Science of Learning (NRF2016-SOL002-001).
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Affiliation(s)
- J Teng
- Duke-NUS Medical School, Singapore, SINGAPORE
| | - J Ong
- Duke-NUS Medical School, Singapore, SINGAPORE
| | - A Patanaik
- Duke-NUS Medical School, Singapore, SINGAPORE
| | - J Zhou
- Duke-NUS Medical School, Singapore, SINGAPORE
| | - M Chee
- Duke-NUS Medical School, Singapore, SINGAPORE
| | - J Lim
- Duke-NUS Medical School, Singapore, SINGAPORE
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25
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Wong KF, Perini F, Henderson SL, Teng J, Hassirim Z, Lin J, Leow Z, Fan Q, Ong J, Lo J, Ong JC, Doshi K, Lim J. 0519 Mindfulness Based Therapy for Insomnia Improves Objective Markers of Sleep in the Elderly: Preliminary Data from the Mindfulness Sleep Therapy (MIST) Study. Sleep 2020. [DOI: 10.1093/sleep/zsaa056.516] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Introduction
Mindfulness-based treatment for insomnia (MBTI) is a viable intervention for improving poor sleep. We report preliminary data from an ongoing pre-registered, randomized controlled trial which investigates the effect of MBTI on elderly adults.
Methods
Participants above 50 years old with PSQI ≥ 5 were recruited and randomised into either MBTI or an active control group (Sleep hygiene education and exercise program, SHEEP) in sequential cohorts with about 20 participants per cohort (10 per group). Before and after the intervention, 1 night of portable polysomnography (PSG) and 1 week of actigraphy (ACT) and sleep diary (DIARY) data were collected. We report the ACT and DIARY results of the first 3 cohorts (n = 46, male = 23, mean age = 62.3, std = 6.3) and PSG data of the first 2 cohorts (n = 29, male = 12, mean age = 62.5, std = 5.7). Time in bed (TIB), total sleep time (TST), sleep onset latency (SOL), wake after sleep onset (WASO), and sleep efficiency (SE) were analysed with mixed-model repeated-measures ANOVA.
Results
We observed increases in TIBDIARY (F1,44 = 5.151, p < .05) and SEDIARY (F1,44 = 22.633, p < .0001), and significant reductions in SOLDIARY (F1,44 = 7.031, p < .05) and WASODIARY (F1,39 = 7.411, p < .05). In the actigraphy data, we found a significant interaction in SOLACT (F1,39 = 4.273, p < .05) with an increase in SHEEP SOLACT (t18= 2.36, p < .05). Significant reductions were also observed in WASOACT (F1,44 = 16.459, p < .0001) Finally, we observed a reduction in SOLPSG (F1,26 = 5.037, p <. 05). All other tests were non-significant.
Conclusion
Preliminary results suggest that both interventions lead to improvements in sleep with more pronounced effects in subjective sleep reports. Objective sleep data suggest that improvements in sleep is a result of improved sleep quality and not simply extending sleep opportunity. These preliminary data shows that MBTI may be a promising intervention for elderly individuals with sleep difficulties.
Support
This study was supported by an award from the 7th grant call of the Singapore Millennium Foundation Research Grant Programme
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Affiliation(s)
- K F Wong
- Duke NUS Medical School, Singapore, SINGAPORE
| | - F Perini
- Duke NUS Medical School, Singapore, SINGAPORE
| | | | - J Teng
- Duke NUS Medical School, Singapore, SINGAPORE
| | - Z Hassirim
- Duke NUS Medical School, Singapore, SINGAPORE
| | - J Lin
- Duke NUS Medical School, Singapore, SINGAPORE
| | - Z Leow
- Duke NUS Medical School, Singapore, SINGAPORE
| | - Q Fan
- Singapore General Hospital, Singapore, SINGAPORE
| | - J Ong
- Duke NUS Medical School, Singapore, SINGAPORE
| | - J Lo
- National University of Singapore, Singapore, SINGAPORE
| | - J C Ong
- Feinberg School of Medicine, Northwestern University, Chicago, IL
| | - K Doshi
- Singapore General Hospital, Singapore, SINGAPORE
| | - J Lim
- Duke NUS Medical School, Singapore, SINGAPORE
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Perini F, Foong Wong K, Teng J, Hassirim Z, Lin J, Leow Z, Lee Henderson S, Fan Q, Lo JC, Ong JC, Doshi K, Lim J. 0824 Improving Subjective Sleep Quality Measures Through Mindfulness Training in the Elderly: Preliminary Data from the Mindfulness Sleep Therapy (MIST) Study. Sleep 2020. [DOI: 10.1093/sleep/zsaa056.820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Introduction
Poor sleep is a modifiable risk factor for multiple chronic disorders. Mindfulness-based therapies potentially improve sleep by enhancing awareness and acceptance of internal and external experiences, thus reducing pre-sleep hyper-arousal. In this pre-registered, randomized controlled trial, we tested the effect of mindfulness-based treatment for insomnia (MBTI) on subjective sleep quality measures (Pittsburgh Sleep Quality Questionnaire, PSQI) in the elderly.
Methods
Participants above 50 years old with sleep difficulties (PSQI ≥ 5) (mean (sd) age = 62.0 (6.35), 44 female) attended either an 8-week MBTI (N = 34) or sleep hygiene education and exercise program (SHEEP; N = 35). Before and after the interventions, we collected PSQI, insomnia symptoms and features measures (Pre-Sleep Arousal Scale, PSAS; Insomnia Severity Index, ISI; Dysfunctional Beliefs and Attitudes about Sleep, DBAS-30), mindfulness (Five-Facets Mindfulness Questionnaire, FFMQ), and mood and anxiety (Back Depression Inventory, BDI; State-Trait Anxiety Inventory, STAI). PSQI and PSAS (N = 26 to date) were collected at 6-month follow-up. Data were analysed with repeated-measures ANCOVA with group as a between-subject variable for the first 69 participants who completed the study.
Results
We observed significant improvement across both groups for sleep measures (PSQI: F1,67=36.442, p<.01; PSAS-Cognitive: F1,67=12.664, p<.01; ISI: F1,67=36.442, p<.0; DBAS: F1,67=28.749, p<.01) and mood (BDI: F1,67=26.393, p<.01; STAI-State: F1,67=4.608, p=.04; STAI-Trait: F1,67=7.687, p<.01), but not for Mindfulness (F1,67=2.256, p=.14) nor PSAS-somatic. No significant group by time interactions were found. We observed a correlation between PSQI decreases and FFMQ increases in MBTI (r=-.53, p<.01), but not in SHEEP (r=-.07, p=.70) participants. ANCOVA of 6-month PSQI data revealed a significant group by time interaction (F1,24=19.525, p=.03), with reduction from baseline in MBTI (t12=4.769, p<.01), but not in SHEEP group (t12=3.813, p=.08).
Conclusion
Preliminary results support MBTI as an accessible but effective behavioural intervention with potential long-term benefits for improving sleep and mood, and reducing cognitive-emotional arousal in the elderly.
Support
This study was supported by an award from the 7th grant call of the Singapore Millennium Foundation Research Grant Programme
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Affiliation(s)
- F Perini
- Centre for Cognitive Neuroscience, Duke NUS Medical School, Singapore, SINGAPORE
| | - K Foong Wong
- Centre for Cognitive Neuroscience, Duke NUS Medical School, Singapore, SINGAPORE
| | - J Teng
- Centre for Cognitive Neuroscience, Duke NUS Medical School, Singapore, SINGAPORE
| | - Z Hassirim
- Centre for Cognitive Neuroscience, Duke NUS Medical School, Singapore, SINGAPORE
| | - J Lin
- Centre for Cognitive Neuroscience, Duke NUS Medical School, Singapore, SINGAPORE
| | - Z Leow
- Centre for Cognitive Neuroscience, Duke NUS Medical School, Singapore, SINGAPORE
| | - S Lee Henderson
- Department of Psychology, Singapore General Hospital, Singapore, Singapore, SINGAPORE
| | - Q Fan
- Department of Psychology, Singapore General Hospital, Singapore, Singapore, SINGAPORE
| | - J C Lo
- Department of Medicine, National University of Singapore, Singapore, SINGAPORE
| | - J C Ong
- Northwestern University, Feinberg School of Medicine, US, Chicago, IL
| | - K Doshi
- Department of Psychology, Singapore General Hospital, Singapore, Singapore, SINGAPORE
| | - J Lim
- Centre for Cognitive Neuroscience, Duke NUS Medical School, Singapore, SINGAPORE
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27
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Li Z, Huang L, Xia N, Teng J, Wei B, Peng D. Amount of
Eurotium
sp. in Chinese Liupao tea and its relationship with tea quality. J Appl Microbiol 2020; 128:1658-1668. [DOI: 10.1111/jam.14589] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2019] [Revised: 01/03/2020] [Accepted: 01/06/2020] [Indexed: 01/07/2023]
Affiliation(s)
- Z. Li
- Institute of Light Industry and Food Engineering Guangxi University Nanning China
| | - Li Huang
- Institute of Light Industry and Food Engineering Guangxi University Nanning China
| | - N. Xia
- Institute of Light Industry and Food Engineering Guangxi University Nanning China
| | - J. Teng
- Institute of Light Industry and Food Engineering Guangxi University Nanning China
| | - B. Wei
- Institute of Light Industry and Food Engineering Guangxi University Nanning China
| | - D. Peng
- Institute of Light Industry and Food Engineering Guangxi University Nanning China
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Seyger M, Abramovits W, Liljedahl M, Hoejen MN, Teng J. Safety and efficacy of fixed-dose combination calcipotriol (50 μg/g) and betamethasone dipropionate (0.5 mg/g) cutaneous foam in adolescent patients (aged 12 to <17 years) with plaque psoriasis: results of a phase II, open-label trial. J Eur Acad Dermatol Venereol 2020; 34:2026-2034. [PMID: 32074665 PMCID: PMC7496170 DOI: 10.1111/jdv.16233] [Citation(s) in RCA: 9] [Impact Index Per Article: 2.3] [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: 08/19/2019] [Accepted: 01/07/2020] [Indexed: 12/05/2022]
Abstract
Background Fixed‐dose combination of calcipotriol (50 μg/g; Cal) and betamethasone dipropionate (0.5 mg/g; BD) foam is approved for plaque psoriasis treatment in adults, with a paucity of data supporting use in adolescents. Objectives To evaluate safety of 4 weeks’ treatment with Cal/BD foam in adolescent patients with psoriasis, and additional safety outcomes in patients with more severe disease (HPA‐axis cohort). Primary objectives included treatment‐emergent adverse events (TEAEs) and systemic calcium levels in the overall population, and HPA‐axis function, change in calcium excretion and the calcium:creatinine ratio in the HPA‐axis cohort. Secondary objectives included exploratory efficacy endpoints [treatment success: change in Psoriasis Area and Severity Index (PASI)]. Systemic exposure to Cal/BD was also assessed. Methods A phase II, open‐label, study (NCT02387853) in patients (12 to <17 years) with at least mild psoriasis, to evaluate Cal/BD foam applied once daily for ≤4 weeks. Results In patients assigned to treatment (n = 106), 32 TEAEs occurred in 22 patients (20.8%). All but two TEAEs were mild; none led to study withdrawal or death. Changes (0–4 weeks) in albumin‐corrected serum calcium (overall population) and urinary calcium excretion (HPA‐axis cohort) were small, transient and not considered clinically relevant. In the HPA‐axis cohort, no change in urinary calcium:creatinine ratio was observed and responses to adrenocorticotropic–hormone (ACTH) challenge did not suggest disruption of the HPA‐axis. Prespecified treatment success on the body and scalp was achieved by 71.8% and 75.7% of the overall population, respectively. Mean PASI decreased by 82.0% vs. baseline at Week 4. Systemic exposure to Cal/BD was minimal. Conclusions Cal/BD foam was well tolerated in adolescent patients with body/scalp psoriasis. There was no evidence for dysregulation of the HPA‐axis nor calcium homoeostasis in patients with more severe disease. Exploratory efficacy data in the overall population were encouraging.
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Affiliation(s)
- M Seyger
- Department of Dermatology, Radboud University Medical Center, Nijmegen, The Netherlands
| | - W Abramovits
- Dermatology Treatment & Research Centre, Dallas, TX, USA
| | - M Liljedahl
- Medical Department, LEO Pharma A/S, Ballerup, Denmark
| | - M N Hoejen
- Biostatistics, LEO Pharma A/S, Ballerup, Denmark
| | - J Teng
- Department of Dermatology, Stanford University School of Medicine, Stanford, CA, USA
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29
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Guo L, Zhang C, Wang J, Teng J, Feng G, Lu M. Evaluation of Rehabilitation and MRI Results of the Combined Therapy of Bushenzhichan Formula and Needle Embedding for Parkinson?s Disease. Indian J Pharm Sci 2020. [DOI: 10.36468/pharmaceutical-sciences.spl.36] [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: 11/22/2022] Open
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30
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Chan J, Mehta OH, Mottram P, Tay IM, Teng J. P889 3D guided CT assessment to define the right pulmonary vein on standard apical 4-chamber view. Eur Heart J Cardiovasc Imaging 2020. [DOI: 10.1093/ehjci/jez319.529] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Introduction
Pulmonary vein(PV) assessment is an integral component of the transthoracic echocardiogram(TTE) examination; typically assessed in the apical four-chamber view(A4Ch). There is disagreement in current textbooks and literature regarding which specific right pulmonary vein is visualised on A4Ch; as either the right superior(RSPV) or right inferior PV(RIPV).
Given the high reliability of cardiac CT for PV assessment, we aimed to characterize right PV anatomy on A4Ch by utilizing multi-modality comparison of echocardiography and a 3D-guided A4Ch on CT.
Methods
Retrospective analysis was performed on consecutive patients with TTE demonstrating PV flow(by colour or pulse-wave Doppler) and cardiac CT within 30days; studies not meeting image quality criteria excluded. To simulate the A4Ch on CT, multi-planar reconstruction was used to create an image plane including right PV ostia and LV apex. This image was rotated along the long-axis to achieve an A4Ch with both ventricles and atria, tricuspid and mitral valves in view without LVOT or aorta. This was attempted for right superior, inferior and middle(RMPV, if present) PV’s.
Results
50 patients were analysed: mean age 66yrs, 48% female, mean LA volume(indexed) 43.5ml/m². A4Ch was feasible in 100%(n = 50) of CT simulations using the RIPV, only 24%(n = 12) were feasible using RSPV with all excluded cases due to LVOT/aorta persistently in view. RMPV was present in 6 cases with feasible A4ch in 67%.
Conclusion
This study demonstrates that the right PV on A4Ch is highly likely to be the RIPV due to the RSPV being anatomically impossible in the significant majority of cases.
Abstract P889 Figure. CT multiplanar reconstruction of A4Ch
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Affiliation(s)
- J Chan
- Monash Heart, Melbourne, Australia
| | | | | | - I M Tay
- Monash Heart, Melbourne, Australia
| | - J Teng
- Monash Heart, Melbourne, Australia
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31
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He N, Ni Y, Teng J, Li H, Yao L, Zhao P. Identification of inorganic oxidizing salts in homemade explosives using Fourier transform infrared spectroscopy. Spectrochim Acta A Mol Biomol Spectrosc 2019; 221:117164. [PMID: 31163327 DOI: 10.1016/j.saa.2019.117164] [Citation(s) in RCA: 21] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/26/2019] [Revised: 05/20/2019] [Accepted: 05/26/2019] [Indexed: 06/09/2023]
Abstract
Recently, inorganic low explosives, such as pyrotechnic composition, black powder, and ammonium nitrate, are commonly used in improvised explosive devices (IEDs) by the rioter or terrorists since these energetic materials can be obtained easily and legally from civilian markets. Identification of inorganic oxidizing salts in these homemade explosives, including nitrates, chlorates, and perchlorates, is a necessary procedure for forensic investigators to provide criminal evidences. In this article, Fourier transform infrared (FTIR) spectroscopy was used to discriminate NO3-, CO32-, ClO3-, ClO4-, SO42-, and NH4+, whose characteristic absorption bands were explained by vibration modes of the covalent bonds. Then the spectral absorption features of nitrate salts with monovalent or divalent cations were discussed. Furthermore, it was studied whether nitrates or perchlorates can be unequivocally distinguished with the presence of carbonate and sulfate impurities through FTIR technique. Finally, the feasibility of this method was verified through an analytical case of homemade explosives.
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Affiliation(s)
- Ning He
- Department of Forensic Chemistry, Criminal Investigation Police University of China, Shenyang 110035, China
| | - Yunchang Ni
- Department of Forensic Chemistry, Criminal Investigation Police University of China, Shenyang 110035, China
| | - Jiao Teng
- Department of Forensic Chemistry, Criminal Investigation Police University of China, Shenyang 110035, China
| | - Hongda Li
- Department of Forensic Chemistry, Criminal Investigation Police University of China, Shenyang 110035, China
| | - Lijuan Yao
- Department of Forensic Chemistry, Criminal Investigation Police University of China, Shenyang 110035, China
| | - Pengcheng Zhao
- Department of Forensic Chemistry, Criminal Investigation Police University of China, Shenyang 110035, China.
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32
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Chen D, Chu T, Chang Q, Zhang Y, Xiong L, Qiao R, Teng J, Han B, Zhong R. EP1.01-65 The Relationship Between Preliminary Efficacy and Prognosis After First-Line EGFR-TKI Treatment of Advanced NSCLC. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.2038] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
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33
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Cao X, Li C, Lu Y, Zhang B, Wu Y, Liu Q, Wu J, Teng J, Yan W, Huang Y. Catalysis of Au nano-pyramids formed across the surfaces of ordered Au nano-ring arrays. J Catal 2019. [DOI: 10.1016/j.jcat.2019.07.038] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [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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34
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Tsay IM, Chou BC, Teng J, Maggiore P, Moir S. P86Multimodality assessment of a complex atrial septal defect: each has an important role to play. Eur Heart J Cardiovasc Imaging 2019. [DOI: 10.1093/ehjci/jez110.032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- I M Tsay
- Monash Health, Melbourne, Australia
| | - B C Chou
- Monash Health, Melbourne, Australia
| | - J Teng
- Monash Health, Melbourne, Australia
| | | | - S Moir
- Monash Health, Melbourne, Australia
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35
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Teng C, Lekwuttikarn R, Tafoya E, Martin M, Bruckner A, Mancini A, Stell L, Lu Y, Teng J. 388 A multicenter study on the use of Sildenafil for lymphatic malformation in children. J Invest Dermatol 2019. [DOI: 10.1016/j.jid.2019.03.464] [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: 10/27/2022]
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36
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Kong D, Xin T, Sun S, Lu Y, Shu X, Long H, Chen Y, Teng J, Zhang Z, Wang L, Han X. Surface Energy Driven Liquid-Drop-Like Pseudoelastic Behaviors and In Situ Atomistic Mechanisms of Small-Sized Face-Centered-Cubic Metals. Nano Lett 2019; 19:292-298. [PMID: 30543297 DOI: 10.1021/acs.nanolett.8b03916] [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] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The elastic strain of conventional metals is usually below ∼1%. As the metals' sizes decrease to approximate a few nanometers, their elastic strains can approach ∼8%, and they usually exhibit pseudoelastic strain that can be as large as ∼35%. Previous studies suggested that the pseudoelastic behaviors of nanocrystals were attributed to distinctive mechanisms, including the release of stored elastic energies, the temperature-enhanced surface diffusion, etc. However, the atomistic mechanisms remain elusive. In this study, through large numbers of in situ atomic-scale tensile-fracture experiments, we report liquid-drop-like pseudoelastic behaviors of face-centered-cubic fractured single-crystalline nanowires with diameters varying from 0.5 to 2.2 nm. The ultralarge liquid-drop-like pseudoelastic strain ranged from 31.4% to 81.0% after the nanowire fracture was observed. The in situ atomic-scale investigations revealed that the atomistic mechanisms resulted from surface energy driven plastic deformation including surface diffusion mixed with shear plastic deformation as well as the release of true elastic energy. As the nanowires' diameters decrease below a critical value, the surface pressure can approach the ideal strength of metals. This ultralarge surface pressure drives atoms to diffuse mixed with dislocation nucleation/propagation, which ultimately leads to the fractured nanowires exhibiting liquid-drop-like pseudoelastic phenomena.
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Affiliation(s)
- Deli Kong
- Institute of Microstructure and Properties of Advanced Materials , Beijing University of Technology , Beijing 100124 , China
| | - Tianjiao Xin
- Institute of Microstructure and Properties of Advanced Materials , Beijing University of Technology , Beijing 100124 , China
| | - Shiduo Sun
- Institute of Microstructure and Properties of Advanced Materials , Beijing University of Technology , Beijing 100124 , China
| | - Yan Lu
- Institute of Microstructure and Properties of Advanced Materials , Beijing University of Technology , Beijing 100124 , China
| | - Xinyu Shu
- Institute of Microstructure and Properties of Advanced Materials , Beijing University of Technology , Beijing 100124 , China
| | - Haibo Long
- Institute of Microstructure and Properties of Advanced Materials , Beijing University of Technology , Beijing 100124 , China
| | - Yanhui Chen
- Institute of Microstructure and Properties of Advanced Materials , Beijing University of Technology , Beijing 100124 , China
| | - Jiao Teng
- Department of Material Physics and Chemistry , University of Science and Technology Beijing , Beijing 100083 , China
| | - Ze Zhang
- Department of Materials Science , Zhejiang University , Hangzhou , Zhejiang 310008 , China
| | - Lihua Wang
- Institute of Microstructure and Properties of Advanced Materials , Beijing University of Technology , Beijing 100124 , China
| | - Xiaodong Han
- Institute of Microstructure and Properties of Advanced Materials , Beijing University of Technology , Beijing 100124 , China
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37
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Chan X, Mehta O, Mottram P, Tsay I, Teng J. 3D Guided CT Assessment to Identify the Right Pulmonary Vein on Standard Apical 4-Chamber View. Heart Lung Circ 2019. [DOI: 10.1016/j.hlc.2019.06.235] [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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38
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Wang L, Teng J, Wu Y, Sha X, Xiang S, Mao S, Yu G, Zhang Z, Zou J, Han X. In situ atomic scale mechanisms of strain-induced twin boundary shear to high angle grain boundary in nanocrystalline Pt. Ultramicroscopy 2018; 195:69-73. [PMID: 30195095 DOI: 10.1016/j.ultramic.2018.08.022] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/10/2018] [Revised: 08/16/2018] [Accepted: 08/26/2018] [Indexed: 12/01/2022]
Abstract
Twin boundary can both strengthen and soften nanocrystalline metals and has been an important path for improving the strength and ductility of nano materials. Here, using in-lab developed double-tilt tensile stage in the transmission electron microscope, the atomic scale twin boundary shearing process was in situ observed in a twin-structured nanocrystalline Pt. It was revealed that the twin boundary shear was resulted from partial dislocation emissions on the intersected {111} planes, which accommodate as large as 47% shear strain. It is uncovered that the partial dislocations nucleated and glided on the two intersecting {111} slip planes lead to a transition of the original <110> symmetric tilt ∑3/(111) coherent twin boundary into a <110> symmetric tilt ∑9/(114) high angle grain boundary. These results provide insight of twin boundary strengthening mechanisms for accommodating plasticity strains in nanocrystalline metals.
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Affiliation(s)
- Lihua Wang
- Beijing Key Lab of Microstructure and Property of Advanced Material, Institute of Microstructure and Properties of Advanced Materials, Beijing University of Technology, Beijing 100124, China.
| | - Jiao Teng
- Department of Material Physics and Chemistry, University of Science and Technology Beijing, Beijing 100083, China
| | - Yu Wu
- Department of Material Physics and Chemistry, University of Science and Technology Beijing, Beijing 100083, China
| | - Xuechao Sha
- Beijing Key Lab of Microstructure and Property of Advanced Material, Institute of Microstructure and Properties of Advanced Materials, Beijing University of Technology, Beijing 100124, China
| | - Sisi Xiang
- Beijing Key Lab of Microstructure and Property of Advanced Material, Institute of Microstructure and Properties of Advanced Materials, Beijing University of Technology, Beijing 100124, China
| | - Shengcheng Mao
- Beijing Key Lab of Microstructure and Property of Advanced Material, Institute of Microstructure and Properties of Advanced Materials, Beijing University of Technology, Beijing 100124, China
| | - Guanghua Yu
- Department of Material Physics and Chemistry, University of Science and Technology Beijing, Beijing 100083, China
| | - Ze Zhang
- Department of Materials Science, Zhejiang University, Hangzhou 310008, China
| | - Jin Zou
- Materials Engineering and Centre for Microscopy and Microanalysis, The University of Queensland, Brisbane, QLD 4072, Australia
| | - Xiaodong Han
- Beijing Key Lab of Microstructure and Property of Advanced Material, Institute of Microstructure and Properties of Advanced Materials, Beijing University of Technology, Beijing 100124, China.
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39
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Gayam S, Zinn Z, Chelliah M, Teng J. Patch testing in gastrointestinal diseases - a systematic review of the patch test and atopy patch test. J Eur Acad Dermatol Venereol 2018. [PMID: 29524260 DOI: 10.1111/jdv.14923] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
Affiliation(s)
- S Gayam
- Digestive Diseases, West Virginia University, Morgantown, WV, USA
| | - Z Zinn
- Section of Dermatology, West Virginia University, Morgantown, WV, USA
| | - M Chelliah
- Stanford University School of Medicine, Stanford, CA, USA
| | - J Teng
- Dermatology, Stanford University, Stanford, CA, USA
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40
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Stubits M, Teng J, Pereira J. Characterization of Malt Grist Fractions. Journal of the American Society of Brewing Chemists 2018. [DOI: 10.1094/asbcj-44-0012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Affiliation(s)
- M. Stubits
- Corporate Research and Development, Anheuser-Busch Companies, Inc., St. Louis, MO 63118
| | - J. Teng
- Corporate Research and Development, Anheuser-Busch Companies, Inc., St. Louis, MO 63118
| | - J. Pereira
- Corporate Research and Development, Anheuser-Busch Companies, Inc., St. Louis, MO 63118
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41
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Chen J, Teng J, Shetty S. Difficult Retrieval of Broken Catheter of a Total Implantable Venous Access Device. Heart Lung Circ 2018. [DOI: 10.1016/j.hlc.2018.06.916] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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42
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Be K, Teng J, Low Z, Ramkumar S, Lockwood S. Mediastinal Lymphoma Presenting as a Pericardial Effusion and Systolic Murmur. Heart Lung Circ 2018. [DOI: 10.1016/j.hlc.2018.06.636] [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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43
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Wang L, Guan P, Teng J, Liu P, Chen D, Xie W, Kong D, Zhang S, Zhu T, Zhang Z, Ma E, Chen M, Han X. New twinning route in face-centered cubic nanocrystalline metals. Nat Commun 2017; 8:2142. [PMID: 29247224 PMCID: PMC5732218 DOI: 10.1038/s41467-017-02393-4] [Citation(s) in RCA: 33] [Impact Index Per Article: 4.7] [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: 07/10/2017] [Accepted: 11/24/2017] [Indexed: 12/01/2022] Open
Abstract
Twin nucleation in a face-centered cubic crystal is believed to be accomplished through the formation of twinning partial dislocations on consecutive atomic planes. Twinning should thus be highly unfavorable in face-centered cubic metals with high twin-fault energy barriers, such as Al, Ni, and Pt, but instead is often observed. Here, we report an in situ atomic-scale observation of twin nucleation in nanocrystalline Pt. Unlike the classical twinning route, deformation twinning initiated through the formation of two stacking faults separated by a single atomic layer, and proceeded with the emission of a partial dislocation in between these two stacking faults. Through this route, a three-layer twin was nucleated without a mandatory layer-by-layer twinning process. This route is facilitated by grain boundaries, abundant in nanocrystalline metals, that promote the nucleation of separated but closely spaced partial dislocations, thus enabling an effective bypassing of the high twin-fault energy barrier.
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Affiliation(s)
- Lihua Wang
- Institute of Microstructure and Property of Advanced Materials, Beijing Key Lab of Microstructure and Property of Advanced Materials, Beijing University of Technology, Beijing, 100124, China
- Materials Engineering, University of Queensland, Brisbane, QLD, 4072, Australia
| | - Pengfei Guan
- Beijing Computational Science Research Center, Beijing, 100193, China
- WPI Advanced Institute for Materials Research, Tohoku University, Sendai, 980-8577, Japan
| | - Jiao Teng
- Department of Material Physics and Chemistry, University of Science and Technology Beijing, Beijing, 100083, China
| | - Pan Liu
- WPI Advanced Institute for Materials Research, Tohoku University, Sendai, 980-8577, Japan
| | - Dengke Chen
- Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA
| | - Weiyu Xie
- Department of Physics, Applied Physics, & Astronomy, Rensselaer Polytechnic Institute, Troy, New York, NY, 12180, USA
| | - Deli Kong
- Institute of Microstructure and Property of Advanced Materials, Beijing Key Lab of Microstructure and Property of Advanced Materials, Beijing University of Technology, Beijing, 100124, China
| | - Shengbai Zhang
- Department of Physics, Applied Physics, & Astronomy, Rensselaer Polytechnic Institute, Troy, New York, NY, 12180, USA
| | - Ting Zhu
- Woodruff School of Mechanical Engineering, Georgia Institute of Technology, Atlanta, GA, 30332, USA.
| | - Ze Zhang
- Institute of Microstructure and Property of Advanced Materials, Beijing Key Lab of Microstructure and Property of Advanced Materials, Beijing University of Technology, Beijing, 100124, China
- State Key Laboratory of Silicon Materials, Zhejiang University, Hangzhou, 310008, China
| | - Evan Ma
- Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, MD, 21218, USA
| | - Mingwei Chen
- WPI Advanced Institute for Materials Research, Tohoku University, Sendai, 980-8577, Japan.
- Department of Materials Science and Engineering, Johns Hopkins University, Baltimore, MD, 21218, USA.
| | - Xiaodong Han
- Institute of Microstructure and Property of Advanced Materials, Beijing Key Lab of Microstructure and Property of Advanced Materials, Beijing University of Technology, Beijing, 100124, China.
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44
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Li L, Liu Y, Teng J, Long S, Guo Q, Zhang M, Wu Y, Yu G, Liu Q, Lv H, Liu M. Anisotropic Magnetoresistance of Nano-conductive Filament in Co/HfO 2/Pt Resistive Switching Memory. Nanoscale Res Lett 2017; 12:210. [PMID: 28335585 PMCID: PMC5362562 DOI: 10.1186/s11671-017-1983-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/29/2016] [Accepted: 03/06/2017] [Indexed: 06/01/2023]
Abstract
Conductive bridge random access memory (CBRAM) has been extensively studied as a next-generation non-volatile memory. The conductive filament (CF) shows rich physical effects such as conductance quantization and magnetic effect. But so far, the study of filaments is not very sufficient. In this work, Co/HfO2/Pt CBRAM device with magnetic CF was designed and fabricated. By electrical manipulation with a partial-RESET method, we controlled the size of ferromagnetic metal filament. The resistance-temperature characteristics of the ON-state after various partial-RESET behaviors have been studied. Using two kinds of magnetic measurement methods, we measured the anisotropic magnetoresistance (AMR) of the CF at different temperatures to reflect the magnetic structure characteristics. By rotating the direction of the magnetic field and by sweeping the magnitude, we obtained the spatial direction as well as the easy-axis of the CF. The results indicate that the easy-axis of the CF is along the direction perpendicular to the top electrode plane. The maximum magnetoresistance was found to appear when the angle between the direction of magnetic field and that of the electric current in the CF is about 30°, and this angle varies slightly with temperature, indicating that the current is tilted.
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Affiliation(s)
- Leilei Li
- Department of Materials Physics and Chemistry, University of Science and Technology Beijing, Beijing, 100083, China
- Key Laboratory of Microelectronic Devices & Integrated Technology, Institute of Microelectronics, Chinese Academy of Sciences, Beijing, 100029, China
| | - Yang Liu
- Nanoscale Physics & Devices Laboratory, Institute of Physics, Chinese Academy of Sciences, Beijing, 100190, China
| | - Jiao Teng
- Department of Materials Physics and Chemistry, University of Science and Technology Beijing, Beijing, 100083, China.
| | - Shibing Long
- Key Laboratory of Microelectronic Devices & Integrated Technology, Institute of Microelectronics, Chinese Academy of Sciences, Beijing, 100029, China.
- University of Chinese Academy of Sciences, Beijing, 100049, China.
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing, 210023, China.
| | - Qixun Guo
- Department of Materials Physics and Chemistry, University of Science and Technology Beijing, Beijing, 100083, China
| | - Meiyun Zhang
- Key Laboratory of Microelectronic Devices & Integrated Technology, Institute of Microelectronics, Chinese Academy of Sciences, Beijing, 100029, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing, 210023, China
| | - Yu Wu
- Department of Materials Physics and Chemistry, University of Science and Technology Beijing, Beijing, 100083, China
| | - Guanghua Yu
- Department of Materials Physics and Chemistry, University of Science and Technology Beijing, Beijing, 100083, China
| | - Qi Liu
- Key Laboratory of Microelectronic Devices & Integrated Technology, Institute of Microelectronics, Chinese Academy of Sciences, Beijing, 100029, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing, 210023, China
| | - Hangbing Lv
- Key Laboratory of Microelectronic Devices & Integrated Technology, Institute of Microelectronics, Chinese Academy of Sciences, Beijing, 100029, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing, 210023, China
| | - Ming Liu
- Key Laboratory of Microelectronic Devices & Integrated Technology, Institute of Microelectronics, Chinese Academy of Sciences, Beijing, 100029, China
- University of Chinese Academy of Sciences, Beijing, 100049, China
- Jiangsu National Synergetic Innovation Center for Advanced Materials (SICAM), Nanjing, 210023, China
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45
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Han B, Wang H, Teng J, Ye J, Chen Q, Zhang Y, Yang W, Qian F. MA 14.07 Randomized Lung Cancer Screening with Low-Dose CT in China: A Specific Risk-Based Screening for Chinese Population. J Thorac Oncol 2017. [DOI: 10.1016/j.jtho.2017.09.577] [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: 11/26/2022]
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46
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Qian F, Yang W, Wang H, Teng J, Zhang Y, Chen Q, Ye J, Lou J, Shi R, Jiang L, Gu A, Zhao Y, Jin B, Zhang X, Xu J, Lou Y, Han B. Community-based lung cancer screening of high-risk population with low-dose computed tomography in China. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx383.001] [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: 11/14/2022] Open
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47
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Wang L, Teng J, Sha X, Zou J, Zhang Z, Han X. Plastic Deformation through Dislocation Saturation in Ultrasmall Pt Nanocrystals and Its in Situ Atomistic Mechanisms. Nano Lett 2017; 17:4733-4739. [PMID: 28715223 DOI: 10.1021/acs.nanolett.7b01416] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
The atomic-scale deformation dynamic behaviors of Pt nanocrystals with size of ∼18 nm were in situ investigated using our homemade device in a high-resolution transmission electron microscope. It was discovered that the plastic deformation of the nanosized single crystalline Pt commenced with dislocation "appreciation" first, then followed by a dislocation "saturation" phenomenon. The magnitude of strain plays a key role on dislocation behaviors. At the early to medium stage of deformation, the plastic deformation was controlled by the full dislocation activities accompanied by the formation of Lomer dislocation locks from reaction of full dislocations. When the strain increased to a significant level, stacking faults and extended dislocations as well as Lomer-Cottrell locks appeared. The Lomer-Cottrell locks can unlock through transferring into Lomer dislocation locks first, and then Lomer dislocation locks were destructed under high stresses. The very high density dislocations and the frequent dislocation reactions through Lomer dislocations and Lomer-Cottrell locks may lead to work hardening in nanosized Pt.
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Affiliation(s)
- Lihua Wang
- Institute of Microstructure and Property of Advanced Materials, Beijing Key Lab of Microstructure and Property of Advanced Materials, Beijing University of Technology , Beijing, 100124, China
| | - Jiao Teng
- Department of Material Physics and Chemistry, University of Science and Technology Beijing , Beijing 100083, China
| | - Xuechao Sha
- Institute of Microstructure and Property of Advanced Materials, Beijing Key Lab of Microstructure and Property of Advanced Materials, Beijing University of Technology , Beijing, 100124, China
| | | | - Ze Zhang
- Institute of Microstructure and Property of Advanced Materials, Beijing Key Lab of Microstructure and Property of Advanced Materials, Beijing University of Technology , Beijing, 100124, China
- Department of Materials Science, Zhejiang University , Hangzhou, 310008, China
| | - Xiaodong Han
- Institute of Microstructure and Property of Advanced Materials, Beijing Key Lab of Microstructure and Property of Advanced Materials, Beijing University of Technology , Beijing, 100124, China
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48
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Pyles M, Tu J, Donahue W, Tafoya E, Zinn Z, Marqueling A, Jeng M, Teng J. 325 Analysis of sirolimus treatment response in lymphatic malformations with and without PIK3CA mutation. J Invest Dermatol 2017. [DOI: 10.1016/j.jid.2017.02.341] [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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49
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Qiao R, Chu T, Han B, Zhong R, Chang Q, Teng J, Pei J. Serum DKK-1 as a clinical and prognostic factor in non-small cell lung cancer patients with bone metastases. Ann Oncol 2017. [DOI: 10.1093/annonc/mdx091.048] [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: 11/13/2022] Open
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50
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Xu S, Xu Y, Chen L, Fang Q, Song S, Chen J, Teng J. RCN1 suppresses ER stress-induced apoptosis via calcium homeostasis and PERK-CHOP signaling. Oncogenesis 2017; 6:e304. [PMID: 28319095 PMCID: PMC5533947 DOI: 10.1038/oncsis.2017.6] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Revised: 12/07/2016] [Accepted: 01/03/2017] [Indexed: 02/07/2023] Open
Abstract
Endoplasmic reticulum (ER) stress is caused by the disturbance of ER homeostasis and leads to the activation of the unfolded protein response (UPR), which alleviates stress at an early stage and triggers apoptosis if homeostasis fails over a prolonged timeframe. Here, we report that reticulocalbin 1 (RCN1), a member of the CREC family, is transactivated by nuclear factor kappa B (NF-κB) during ER stress and inhibits ER stress-induced apoptosis. The depletion of RCN1 increases the UPR during drug-induced ER stress by activating PRKR-like ER kinase–CCAAT/enhancer-binding protein-homologous protein (PERK–CHOP) signaling, thus inducing apoptosis. Furthermore, we found that the first two EF-hand calcium-binding motifs of RCN1 specifically interact with inositol 1,4,5-trisphosphate (IP3) receptor type 1 (IP3R1) on loop 3 of its ER luminal domain and inhibit ER calcium release and apoptosis. Together, these data indicate that RCN1, a target of NF-κB, suppresses ER calcium release by binding to IP3R1 and decreases the UPR, thereby inhibiting ER stress-induced apoptosis.
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Affiliation(s)
- S Xu
- Key Laboratory of Cell Proliferation and Differentiation of the Ministry of Education, State Key Laboratory of Bio-membrane and Membrane Bio-engineering, College of Life Sciences, Peking University, Beijing, China
| | - Y Xu
- Key Laboratory of Cell Proliferation and Differentiation of the Ministry of Education, State Key Laboratory of Bio-membrane and Membrane Bio-engineering, College of Life Sciences, Peking University, Beijing, China
| | - L Chen
- Key Laboratory of Cell Proliferation and Differentiation of the Ministry of Education, State Key Laboratory of Bio-membrane and Membrane Bio-engineering, College of Life Sciences, Peking University, Beijing, China
| | - Q Fang
- Key Laboratory of Cell Proliferation and Differentiation of the Ministry of Education, State Key Laboratory of Bio-membrane and Membrane Bio-engineering, College of Life Sciences, Peking University, Beijing, China
| | - S Song
- Key Laboratory of Cell Proliferation and Differentiation of the Ministry of Education, State Key Laboratory of Bio-membrane and Membrane Bio-engineering, College of Life Sciences, Peking University, Beijing, China
| | - J Chen
- Key Laboratory of Cell Proliferation and Differentiation of the Ministry of Education, State Key Laboratory of Bio-membrane and Membrane Bio-engineering, College of Life Sciences, Peking University, Beijing, China.,Center for Quantitative Biology, Peking University, Beijing, China
| | - J Teng
- Key Laboratory of Cell Proliferation and Differentiation of the Ministry of Education, State Key Laboratory of Bio-membrane and Membrane Bio-engineering, College of Life Sciences, Peking University, Beijing, China
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