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Li C, Chen H, Gu Y, Chen W, Liu M, Lei Q, Li Y, Liang X, Wei B, Huang D, Liu S, Su L, Zeng X, Wang L. Causal effects of PM 2.5 exposure on neuropsychiatric disorders and the mediation via gut microbiota: A Mendelian randomization study. Ecotoxicol Environ Saf 2024; 275:116257. [PMID: 38564871 DOI: 10.1016/j.ecoenv.2024.116257] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/20/2023] [Revised: 03/03/2024] [Accepted: 03/21/2024] [Indexed: 04/04/2024]
Abstract
BACKGROUND Growing evidence has revealed the impacts of exposure to fine particulate matter (PM2.5) and dysbiosis of gut microbiota on neuropsychiatric disorders, but the causal inference remains controversial due to residual confounders in observational studies. METHODS This study aimed to examine the causal effects of exposure to PM2.5 on 4 major neuropsychiatric disorders (number of cases = 18,381 for autism spectrum disorder [ASD], 38,691 for attention deficit hyperactivity disorder [ADHD], 67,390 for schizophrenia, and 21,982 cases for Alzheimer's disease [AD]), and the mediation pathway through gut microbiota. Two-sample Mendelian randomization (MR) analyses were performed, in which genetic instruments were identified from genome-wide association studies (GWASs). The included GWASs were available from (1) MRC Integrative Epidemiology Unit (MRC-IEU) for PM2.5, PMcoarse, PM10, and NOX; (2) the Psychiatric Genomics Consortium (PGC) for ASD, ADHD, and schizophrenia; (3) MRC-IEU for AD; and (4) MiBioGen for gut microbiota. Multivariable MR analyses were conducted to adjust for exposure to NOX, PMcoarse, and PM10. We also examined the mediation effects of gut microbiota in the associations between PM2.5 exposure levels and neuropsychiatric disorders, using two-step MR analyses. RESULTS Each 1 standard deviation (1.06 ug/m3) increment in PM2.5 concentrations was associated with elevated risk of ASD (odds ratio [OR] 1.42, 95% confidence interval [CI] 1.00-2.02), ADHD (1.51, 1.15-1.98), schizophrenia (1.47, 1.15-1.87), and AD (1.57, 1.16-2.12). For all the 4 neurodevelopmental disorders, the results were robust under various sensitivity analyses, while the MR-Egger method yielded non-significant outcomes. The associations remained significant for all the 4 neuropsychiatric disorders after adjusting for PMcoarse, while non-significant after adjusting for NOX and PM10. The effects of PM2.5 exposure on ADHD and schizophrenia were partially mediated by Lachnospiraceae and Barnesiella, with the proportions ranging from 8.31% to 15.77%. CONCLUSIONS This study suggested that exposure to PM2.5 would increase the risk of neuropsychiatric disorders, partially by influencing the profile of gut microbiota. Comprehensive regulations on air pollutants are needed to help prevent neuropsychiatric disorders.
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Affiliation(s)
- Chanhua Li
- School of Public Health, Guangxi Medical University, Nanning, Guangxi 530021, China
| | - Hao Chen
- School of Public Health, Guangxi Medical University, Nanning, Guangxi 530021, China
| | - Ye Gu
- School of Public Health, Guangxi Medical University, Nanning, Guangxi 530021, China
| | - Wanling Chen
- School of Public Health, Guangxi Medical University, Nanning, Guangxi 530021, China
| | - Meiliang Liu
- School of Public Health, Guangxi Medical University, Nanning, Guangxi 530021, China
| | - Qinggui Lei
- The Eighth People's Hospital of Nanning, Nanning, Guangxi 530001, China
| | - Yujun Li
- Nanning Children's Rehabilitation Center, Nanning, Guangxi 530005, China
| | - Xiaomei Liang
- Nanning Children's Rehabilitation Center, Nanning, Guangxi 530005, China
| | - Binyuan Wei
- Nanning Children's Rehabilitation Center, Nanning, Guangxi 530005, China
| | - Dongping Huang
- School of Public Health, Guangxi Medical University, Nanning, Guangxi 530021, China
| | - Shun Liu
- School of Public Health, Guangxi Medical University, Nanning, Guangxi 530021, China
| | - Li Su
- School of Public Health, Guangxi Medical University, Nanning, Guangxi 530021, China
| | - Xiaoyun Zeng
- School of Public Health, Guangxi Medical University, Nanning, Guangxi 530021, China
| | - Lijun Wang
- School of Public Health, Guangxi Medical University, Nanning, Guangxi 530021, China; Guangxi Colleges and Universities Key Laboratory of Prevention and Control of Highly Prevalent Diseases, Guangxi Medical University, Nanning 530021, China.
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Liu KL, Xiao RL, Ruan Y, Wei B. Active learning prediction and experimental confirmation of atomic structure and thermophysical properties for liquid Hf_{76}W_{24} refractory alloy. Phys Rev E 2023; 108:055310. [PMID: 38115461 DOI: 10.1103/physreve.108.055310] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/26/2023] [Accepted: 10/18/2023] [Indexed: 12/21/2023]
Abstract
The determination of liquid atomic structure and thermophysical properties is essential for investigating the physical characteristics and phase transitions of refractory alloys. However, due to the stringent experimental requirements and underdeveloped interatomic potentials, acquiring such information through experimentation or simulation remains challenging. Here, an active learning method incorporating a deep neural network was established to generate the interatomic potential of the Hf_{76}W_{24} refractory alloy. Then the achieved potential was applied to investigate the liquid atomic structure and thermophysical properties of this alloy over a wide temperature range. The simulation results revealed the distinctive bonding preferences among atoms, that is, Hf atoms exhibited a strong tendency for conspecific bonding, while W atoms preferred to form an interspecific bonding. The analysis of short-range order (SRO) in the liquid alloy revealed a significant proportion of icosahedral (ICO) and distorted ICO structures, which even exceeded 30% in the undercooled state. As temperature decreased, SRO structures demonstrated an increase in larger coordination number (CN) clusters and a decrease in smaller CNs. The alterations of the atomic structure indicated that the liquid alloy becomes more ordered, densely packed, and energetically favorable with decreasing temperature, consistent with the obtained fact: Both density and surface tension increase linearly. The simulated thermophysical properties were close to experimental values with minor deviations of 2.8% for density and 3.4% for surface tension. The consistency of the thermophysical properties further attested to the accuracy and reliability of active learning simulation.
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Affiliation(s)
- K L Liu
- MOE Key Laboratory of Materials Physics and Chemistry under Extraordinary Conditions, School of Physical Science and Technology, Northwestern Polytechnical University, Xi'an 710072, China
| | - R L Xiao
- MOE Key Laboratory of Materials Physics and Chemistry under Extraordinary Conditions, School of Physical Science and Technology, Northwestern Polytechnical University, Xi'an 710072, China
| | - Y Ruan
- MOE Key Laboratory of Materials Physics and Chemistry under Extraordinary Conditions, School of Physical Science and Technology, Northwestern Polytechnical University, Xi'an 710072, China
| | - B Wei
- MOE Key Laboratory of Materials Physics and Chemistry under Extraordinary Conditions, School of Physical Science and Technology, Northwestern Polytechnical University, Xi'an 710072, China
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Liu Y, Li H, Peng Y, Gao L, Liu C, Wei B, Luo Z. Impacts of pregnancy and menopause on COVID-19 severity: a systematic review and meta-analysis of 4.6 million women. QJM 2023; 116:755-765. [PMID: 37228103 DOI: 10.1093/qjmed/hcad106] [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] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2023] [Indexed: 05/27/2023] Open
Abstract
BACKGROUND Corona Virus Disease 2019 (COVID-19) pandemic is still a public health emergency of international concern. However, whether pregnancy and menopause impact the severity of COVID-19 remain unclear. AIM This study is performed to investigate the truth. DESIGN Study appraisal and synthesis follows PRISMA guideline. Meta-analysis is performed in random-effects model. METHODS PubMed, Embase, Cochrane database, Central, CINAHL, ClinicalTrials.gov, WHO COVID-19 database and WHO-ICTRP are searched until 28 March 2023. RESULTS In total, 57 studies (4 640 275 COVID-19 women) were analyzed. Pregnant women were at a lower risk of severe COVID-19, intensive care unit (ICU) admission and disease mortality compared to those nonpregnant women with comparable comorbidities. In contrast, pregnant women with more prepregnancy comorbidities were at a higher risk of severe COVID-19, ICU admission and invasive mechanical ventilation (IMV). In addition, pregnant women with pregnancy complications had a significantly increased risk of severe COVID-19 and ICU admission. Menopause increased COVID-19 severity, IMV requirement and disease mortality. Hormone replacement therapy inhibited COVID-19 severity in postmenopausal women. Premenopausal and postmenopausal women had a lower chance of severe illness than age-matched men. The impact of pregnancy on COVID-19 severity was significant in Americans and Caucasians, whereas the effect of menopause on COVID-19 severity was only significant in Chinese. CONCLUSIONS Pregnancy and menopause are protective and risk factors for severe COVID-19, respectively. The protective role of pregnancy on COVID-19 is minimal and could be counteracted or masked by prepregnancy or pregnancy comorbidities. The administration of estrogen and progesterone may prevent severe COVID-19.
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Affiliation(s)
- Y Liu
- Department of Endocrinology, China Resources and WISCO General Hospital, Wuhan, China
| | - H Li
- Department of Geratology, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, China
| | - Y Peng
- Department of Cardiology, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, China
| | - L Gao
- Department of Cardiology, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, China
| | - C Liu
- Department of Cardiology, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, China
| | - B Wei
- Department of Cardiology, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, China
- Institute of Myocardial Injury and Repair, Wuhan University, Wuhan, China
| | - Z Luo
- Department of Cardiology, Zhongnan Hospital of Wuhan University, Wuhan University, Wuhan, China
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Liu H, Tang Q, Yan X, Wang L, Wang J, Yang Q, Wei B, Li J, Qi J, Hu J, Hu B, Han C, Wang J, Li L. Mass spectrometry-based metabolic profiling for identification of biomarkers related to footpad dermatitis in ducks. Br Poult Sci 2023; 64:577-585. [PMID: 37254666 DOI: 10.1080/00071668.2023.2214884] [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: 04/04/2022] [Revised: 03/02/2023] [Accepted: 04/04/2023] [Indexed: 06/01/2023]
Abstract
1. A new assessment method for duck footpad dermatitis (FPD) evaluation was developed, combining visual and histological characters using the images and sections of 400 ducks' feet at 340 d of age. All ducks were graded as G0 (healthy), G1 (mild), G2 (moderate) and G3 (severe) according to the degree of FPD.2. To reveal the potential biomarkers in serum related to duck FPD, non-targeted metabolomics and Kyoto Encyclopedia of Genes and Genomes (KEGG) enrichment analysis were used to explore differential metabolites in each group.3. There were 57, 91 and 210 annotated differential metabolites in groups G1, G2 and G3 compared with G0, which meant that the severity of FPD increased in line with the number of metabolites. Four metabolites, L-phenylalanine, L-arginine, L-leucine and L-lysine, were considered potential biomarkers related to FPD.4. KEGG enrichment analysis showed that the FPD was mainly involved in glycolysis, the tricarboxylic acid (TCA) cycle, the pentose phosphate pathway and amino acid metabolism. These are related to production metabolism and can affect the physiological activities of ducks, which might explain the decrease in production performance.
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Affiliation(s)
- H Liu
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Q Tang
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - X Yan
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - L Wang
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - J Wang
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - Q Yang
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - B Wei
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - J Li
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - J Qi
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - J Hu
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - B Hu
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - C Han
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - J Wang
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
| | - L Li
- Farm Animal Genetic Resources Exploration and Innovation Key Laboratory of Sichuan Province, College of Animal Science and Technology, Sichuan Agricultural University, Chengdu, China
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Ye LL, Zhou JH, Tian YL, Liu SX, Liu JX, Ye JM, Cui J, Chen C, Wang J, Wu YQ, Qiu Y, Wei B, Qiu YD, Zheng XL, Qi L, Lv YB, Zhang J. [Association of greenness exposure with waist circumference and central obesity in Chinese adults aged 65 years and over]. Zhonghua Yu Fang Yi Xue Za Zhi 2023; 57:86-92. [PMID: 36854442 DOI: 10.3760/cma.j.cn112150-20221117-01118] [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] [Subscribe] [Scholar Register] [Indexed: 03/02/2023]
Abstract
Objective: To examine the association of greenness exposure with waist circumference (WC) and central obesity in older adults in China. Methods: Based on the cross-sectional data from the Chinese Longitudinal Healthy Longevity Survey in 2017-2018, 14 056 participants aged 65 years and over were included. Demographic characteristics, lifestyle, WC, and other information were collected through a questionnaire and physical examination. Based on the satellite monitoring data of moderate-resolution imaging spectroradiometer (MODIS) provided by NASA, the annual mean of normalized difference vegetation index (NDVI) within a radius of 1 000 meters was obtained as the measurement value of greenness exposure. Multivariate linear regression model, multivariate logistic regression model, and restricted cubic splines (RCS) model were used to analyze the association and dose-response relationship between greenness exposure and WC and central obesity in older adults in China. Results: A total of 14 056 participants were enrolled with a median age of 84.0 years [IQR: 75.0-94.0 years]. About 45.0% (6 330) of them were male and 48.6% (5 853) were illiterate. There were 10 964 (78.0%) participants from rural. The mean of WC was (84.4±10.8) cm. Central obesity accounted for 60.2% (8 465), and the NDVI range was (-0.06, 0.78). After adjusting for confounding factors, the multivariate linear regression model showed that the change value of WC in the urban group [β (95%CI):-0.49 (-0.93, -0.06)] was smaller than that in the rural [-0.78 (-0.98, -0.58)] for every 0.1 unit increase in NDVI (Pinteraction=0.022). Compared with the Q1 group in NDVI, WC of Q2 and Q3 groups in rural decreased, and the β (95%CI) values were-1.74 (-2.5, -0.98) and-2.78 (-3.55, -2.00), respectively. The multivariate logistic regression model showed that after adjusting for confounding factors, the risk of central obesity decreased for urban and rural older adults with an increase of 0.1 unit in NDVI, and the OR (95%CI) values were 0.87 (0.80, 0.95) and 0.86 (0.82, 0.89), respectively (Pinteraction=0.284). Compared with the Q1 group in NDVI, the risk of central obesity in the Q2 and Q3 groups in rural was lower, and the OR (95%CI) values were 0.68 (0.58, 0.80) and 0.57 (0.49, 0.68), respectively. The results of the multivariate regression model with RCS showed that there was a non-linear association of NDVI with WC (Pnonlinear=0.006) and central obesity (Pnonlinear=0.025). Conclusion: Greenness exposure is negatively associated with WC and central obesity in older adults in China.
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Affiliation(s)
- L L Ye
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China China CDC Key Laboratory of Environment and Population Health/National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing 100021, China
| | - J H Zhou
- China CDC Key Laboratory of Environment and Population Health/National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing 100021, China
| | - Y L Tian
- Laboratory of Earth Surface Processes, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China
| | - S X Liu
- China CDC Key Laboratory of Environment and Population Health/National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing 100021, China
| | - J X Liu
- China CDC Key Laboratory of Environment and Population Health/National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing 100021, China
| | - J M Ye
- China CDC Key Laboratory of Environment and Population Health/National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing 100021, China
| | - J Cui
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China China CDC Key Laboratory of Environment and Population Health/National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing 100021, China
| | - C Chen
- China CDC Key Laboratory of Environment and Population Health/National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing 100021, China
| | - J Wang
- China CDC Key Laboratory of Environment and Population Health/National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing 100021, China
| | - Y Q Wu
- China CDC Key Laboratory of Environment and Population Health/National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing 100021, China
| | - Y Qiu
- China CDC Key Laboratory of Environment and Population Health/National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing 100021, China
| | - B Wei
- China CDC Key Laboratory of Environment and Population Health/National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing 100021, China
| | - Y D Qiu
- China CDC Key Laboratory of Environment and Population Health/National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing 100021, China
| | - X L Zheng
- China CDC Key Laboratory of Environment and Population Health/National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing 100021, China
| | - L Qi
- China CDC Key Laboratory of Environment and Population Health/National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing 100021, China
| | - Y B Lv
- China CDC Key Laboratory of Environment and Population Health/National Institute of Environmental Health, Chinese Center for Disease Control and Prevention, Beijing 100021, China
| | - J Zhang
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
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Yang LJ, Zeng XF, Yu JX, Bu H, Wei B. [Mucoepidermoid carcinoma of the breast: report of a case]. Zhonghua Bing Li Xue Za Zhi 2023; 52:172-174. [PMID: 36748141 DOI: 10.3760/cma.j.cn112151-20220512-00404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- L J Yang
- Department of Pathology, West China Hospital, Chengdu 610041, China
| | - X F Zeng
- Department of Pathology, West China Hospital, Chengdu 610041, China
| | - J X Yu
- Department of Pathology, West China Hospital, Chengdu 610041, China
| | - H Bu
- Department of Pathology, West China Hospital, Chengdu 610041, China
| | - B Wei
- Department of Pathology, West China Hospital, Chengdu 610041, China
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Yuan Z, Cui H, Wei B. [Current status and future prospects of robotic surgical system in radical gastrectomy for gastric cancer]. Zhonghua Wei Chang Wai Ke Za Zhi 2023; 26:33-37. [PMID: 36649997 DOI: 10.3760/cma.j.cn441530-20221123-00486] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Robotic gastrectomy (RG) has always been a hot topic in the field of minimally invasive surgery for gastric cancer. More and more studies have confirmed that short- and long-term outcomes of RG are similar to those of laparoscopic gastrectomy. Robotic surgical systems have more advantages in specific regional lymph node dissection. More delicate operation can reduce intraoperative blood loss and the incidence of postoperative complications. Robotic surgical systems are also more ergonomically designed. However, there are also some problems such as high surgical cost, lack of tactile feedback and prolonged total operation time. In the future, robotic surgical system may be further developed in the direction of miniaturization, intelligence and modularity. At the same time, the robotic surgical system deeply integrated with artificial intelligence technology may realize the automation of some operation steps to some extent.
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Affiliation(s)
- Z Yuan
- Department of General Surgery, The First Medical Center, Chinese PLA General Hospital, Beijing 100853, China
| | - H Cui
- Department of General Surgery, The First Medical Center, Chinese PLA General Hospital, Beijing 100853, China
| | - B Wei
- Department of General Surgery, The First Medical Center, Chinese PLA General Hospital, Beijing 100853, China
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8
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Chen L, Wei B, Di DL. A narrative review of tissue-resident memory T cells and their role in immune surveillance and COVID-19. Eur Rev Med Pharmacol Sci 2022; 26:4486-4496. [PMID: 35776050 DOI: 10.26355/eurrev_202206_29088] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Most effector T cells will undergo programmed apoptosis after an immune response and some of them may become memory T cells. According to the distribution and functional status, the memory T cells can be divided into effector central memory T cells (TCM), effector memory T cells (TEM) and tissue-resident memory T cells (TRM) cells. TRM cells, including CD4+ TRM and CD8+ TRM cells, colonize various barrier surfaces and are no longer involved in lymphocyte recycling, closely monitored for local perturbations in homeostasis throughout the body as a critical component of the first defense line. When pathogenic microorganisms invade the body, TRM cells can quickly produce a defense response to initiate innate immunity and adaptive immunity by producing cytokines or killer molecules to resist viral and bacterial infections. In addition, TRM cells are also involved in cancer surveillance and play an essential role in maintaining cancer-immune equilibrium. The high frequency of TRM cells in tumor tissues often means favorable survival for patients. The latest research proves that TRM cells also play an important role in vaccine development and pathological features of COVID-19. This article will summarize the biological functions of TRM cells and aims at providing references for further research on their mechanism and for targeting the best treatment of clinical disease.
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Affiliation(s)
- L Chen
- Department of Hematology, Affiliated Hospital of Weifang Medical University, Weifang, Shandong, China.
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9
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Qin XP, Geng DL, Xie WJ, Wei B. Acoustic manipulation dynamics of levitated particle with screw-shaped reflecting surface. Rev Sci Instrum 2022; 93:064506. [PMID: 35778049 DOI: 10.1063/5.0093655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/29/2022] [Accepted: 06/01/2022] [Indexed: 06/15/2023]
Abstract
Existing single-axis acoustic levitation devices with an axisymmetric reflector can manipulate particles in a variety of ways. However, the mechanism by which particles are suspended in a single-axis acoustic levitator with a non-axisymmetric reflector remains poorly understood. This work addresses this issue by proposing a novel single-axis ultrasonic levitator design that includes a flat plane emitter and a screw-plane reflector. The node positions of the standing wave formed in this levitator were predicted by calculating the Gor'kov potential according to a numerical model. The analysis results demonstrate that the nodes were distributed off-axis and their positions varied in a spiral manner when changing the distance between the emitter and reflector. Corresponding experiments based on the proposed design were also conducted, and the results indicated that the distance changes between the emitter and reflector could induce some spiral trajectories of a polyethylene-foam particle placed in the ultrasonic field. Moreover, the trajectory of the suspended particle was found to distribute along a conical surface centered on the central axis of this device. This work provides a new approach for ultrasonic particle manipulation by changing the geometry of the reflector.
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Affiliation(s)
- X P Qin
- School of Physical Science and Technology, Northwestern Polytechnical University, Xi'an 710072, China
| | - D L Geng
- School of Physical Science and Technology, Northwestern Polytechnical University, Xi'an 710072, China
| | - W J Xie
- School of Physical Science and Technology, Northwestern Polytechnical University, Xi'an 710072, China
| | - B Wei
- School of Physical Science and Technology, Northwestern Polytechnical University, Xi'an 710072, China
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10
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Wei B, Xu D. [Problems and prospects for thermal ablation in the treatment of primary hyperthyroidism]. Zhonghua Nei Ke Za Zhi 2022; 61:451-454. [PMID: 35488590 DOI: 10.3760/cma.j.cn112138-20220329-00221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Affiliation(s)
- B Wei
- Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Hangzhou 310022, China
| | - D Xu
- Cancer Hospital of the University of Chinese Academy of Sciences (Zhejiang Cancer Hospital), Hangzhou 310022, China Institute of Basic Medicine and Cancer (IBMC), Chinese Academy of Sciences, Key Laboratory of Head & Neck Cancer Translational Research of Zhejiang Province, Hangzhou 310022, China
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11
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Cui H, Cao B, Deng H, Liu GB, Liang WQ, Xie TY, Ye L, Zhang QP, Wang N, Liu FD, Wei B. [A nomogram for predicting lymph node metastasis in early gastric cancer]. Zhonghua Wei Chang Wai Ke Za Zhi 2022; 25:40-47. [PMID: 35067033 DOI: 10.3760/cma.j.cn441530-20210208-00059] [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] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To explore the independent risk factors of lymph node metastasis (LNM) in early gastric cancer, and to use nomogram to construct a prediction model for above LNM. Methods: A retrospective cohort study was conducted. Inclusion criteria: (1) primary early gastric cancer as stage pT1 confirmed by postoperative pathology; (2) complete clinicopathological data. Exclusion criteria: (1) patients with advanced gastric cancer, stump gastric cancer or history of gastrectomy; (2) early gastric cancer patients confirmed by pathology after neoadjuvant chemotherapy; (3) other types of gastric tumors, such as lymphoma, neuroendocrine tumor, stromal tumor, etc.; (4) primary tumors of other organs with gastric metastasis. According to the above criteria, 1633 patients with early gastric cancer who underwent radical gastrectomy at the Department of General Surgery of the Chinese PLA General Hospital First Medical Center from December 2005 to December 2020 were enrolled as training set, meanwhile 239 patients with early gastric cancer who underwent gastrectomy at the Department of General Surgery of the Chinese PLA General Hospital Fourth Medical Center from December 2015 to December 2020 were enrolled as external validation set. Risk factors of LNM in early gastric cancer were identified by using univariate and multivariate logistic regression analyses. A nomogram prediction model was established with significant factors screened by multivariate analysis. Area under the receiver operating characteristic curve (AUC) was used for assessing the predictive value of the model. Calibration curve was drawn for external validation. Results: Among 1633 patients in training set, the mean number of retrieved lymph nodes was 20 (13-28), and 209 patients (12.8%) had lymph node metastasis. Univariate analysis showed that gender, resection range, tumor location, tumor morphology, lymph node clearance, vascular invasion, lymphatic cancer thrombus, tumor length, tumor differentiation, microscopic presence of signet ring cells and depth of tumor invasion were associated with LNM (all P<0.05). Multivariate analysis revealed that females, tumor morphology as ulcer type, vascular invasion, lymphatic cancer thrombus, tumor length≥3 cm, deeper invasion of mucosa, and poor differentiation were independent risk factors for LNM in early gastric cancers (all P<0.05). Receiver operating characteristic curve indicated that AUC of training set was 0.818 (95%CI: 0.790-0.847) and AUC of external validation set was 0.765 (95%CI: 0.688-0.843). The calibration curve showed that the LNM probability predicted by nomogram was consistent with the actual situation (C-index: 0.818 in training set and 0.765 in external validation set). Conclusions: Females, tumor morphology as ulcer type, vascular invasion, lymphatic cancer thrombus, tumor length≥3 cm, deeper invasion of mucosa and poor differentiation are independent risk factors for LNM of early gastric cancer. The establishment of a nomogram prediction model for LNM in early gastric cancer has great diagnostic value and can provide reference for treatment selection.
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Affiliation(s)
- H Cui
- Department of General Surgery & Instituteof General Surgery, Chinese PLA General Hospital First Medical Center, Beijing 100853, China School of Medicine, Nankai University, Tianjin 300071, China
| | - B Cao
- Department of General Surgery & Instituteof General Surgery, Chinese PLA General Hospital First Medical Center, Beijing 100853, China
| | - H Deng
- Department of General Surgery & Instituteof General Surgery, Chinese PLA General Hospital First Medical Center, Beijing 100853, China
| | - G B Liu
- Department of General Surgery & Instituteof General Surgery, Chinese PLA General Hospital First Medical Center, Beijing 100853, China School of Medicine, Nankai University, Tianjin 300071, China
| | - W Q Liang
- Department of General Surgery & Instituteof General Surgery, Chinese PLA General Hospital First Medical Center, Beijing 100853, China
| | - T Y Xie
- Department of General Surgery & Instituteof General Surgery, Chinese PLA General Hospital First Medical Center, Beijing 100853, China School of Medicine, Nankai University, Tianjin 300071, China
| | - L Ye
- Department of General Surgery & Instituteof General Surgery, Chinese PLA General Hospital First Medical Center, Beijing 100853, China School of Medicine, Nankai University, Tianjin 300071, China
| | - Q P Zhang
- Department of General Surgery & Instituteof General Surgery, Chinese PLA General Hospital First Medical Center, Beijing 100853, China
| | - N Wang
- Department of General Surgery & Instituteof General Surgery, Chinese PLA General Hospital First Medical Center, Beijing 100853, China
| | - F D Liu
- Departmentof General Surgery, Chinese PLA General Hospital Fourth Medical Center, Beijing 100048, China
| | - B Wei
- Department of General Surgery & Instituteof General Surgery, Chinese PLA General Hospital First Medical Center, Beijing 100853, China
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Deng H, Cui H, Cao B, Liu GB, Song LQ, Li HH, Zhao RY, Chen L, Wei B. [Analysis of influence factors for short-term recurrence of retroperitoneal liposarcoma after complete resection]. Zhonghua Wai Ke Za Zhi 2022; 60:52-56. [PMID: 34954947 DOI: 10.3760/cma.j.cn112139-20210401-00154] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To examine the influence factors of short-term recurrence after complete surgical resection of retroperitoneal liposarcoma. Methods: The clinicopathological data of retroperitoneal liposarcoma at Department of General Surgery, the First Medical Center, People's Liberation Army General Hospital from January 1, 2000 to January 31, 2020 were retrospectively analyzed. There were 60 males and 31 females, aged (52.1±9.9) years (range: 30 to 84 years). Tumor recurrence within 12 months after complete resection was defined as short-term recurrence, and tumor recurrence more than 12 months was defined as non-short-term recurrence. The t test, rank-sum test, χ2 test and Fisher exact test were conducted for inter-group comparison. Logistic regression analysis was used to analyze the independent influence factors for the short-term recurrence of retroperitoneal liposarcoma after complete resection. The Kaplan-Meier curve was used to calculate the recurrence-free survival, and the Log-rank test was adopted for the comparison between the groups. Results: The univariate analysis results showed that irregular tumor morphology, multiple pathological subtypes, pathological scores>3, and multiple primary tumors are influence factors for short-term recurrence after complete resection of retroperitoneal liposarcoma (χ2: 4.422 to 7.773, all P<0.05). Regression analysis of the above risk factors showed that multiple primary tumors was the independent risk factor (OR=2.918, 95%CI: 1.127 to 7.556, P=0.027). In the short-term recurrence group, Kaplan-Meier curve analysis showed that patients with multiple primary tumors had a shorter median recurrence time than patients with unifocal tumor (6 months vs. 9 months, P=0.028). Conclusions: Multiple primary tumor is an independent risk factor for short-term recurrence after complete resection of retroperitoneal liposarcoma. It suggests that the frequency of follow-up after surgery should be increased for such patients.
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Affiliation(s)
- H Deng
- Medical School of People's Liberation Army, Beijing 100853, China
| | - H Cui
- Department of General Surgery, the First Medical Center, People's Liberation Army General Hospital, Beijing 100853, China
| | - B Cao
- Medical School of People's Liberation Army, Beijing 100853, China
| | - G B Liu
- Department of General Surgery, the First Medical Center, People's Liberation Army General Hospital, Beijing 100853, China
| | - L Q Song
- Department of General Surgery, the First Medical Center, People's Liberation Army General Hospital, Beijing 100853, China
| | - H H Li
- Medical School of People's Liberation Army, Beijing 100853, China
| | - R Y Zhao
- Medical School of People's Liberation Army, Beijing 100853, China
| | - L Chen
- Department of General Surgery, the First Medical Center, People's Liberation Army General Hospital, Beijing 100853, China
| | - B Wei
- Department of General Surgery, the First Medical Center, People's Liberation Army General Hospital, Beijing 100853, China
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Wang J, Zhang Y, Wei B, Zhou K, Xu L, Jin Y. A Pan-Cancer Analysis of the Prognostic Value and Immunological Role of Promyelocytic Leukemia Zinc Finger. Indian J Pharm Sci 2022. [DOI: 10.36468/pharmaceutical-sciences.spl.589] [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: 01/28/2023] Open
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14
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Zhao CF, Hu HX, Chen L, Wang LL, Wei B, Xu H. [Analysis of seven cases of multiple myeloma with initial manifestation of bleeding]. Zhonghua Nei Ke Za Zhi 2021; 60:831-833. [PMID: 34445821 DOI: 10.3760/cma.j.cn112138-20200828-00780] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
A retrospective analysis of 7 patients of multiple myeloma (MM) with initial manifestation of bleeding and coagulation abnormalities were performed. Clinical manifestations, laboratory and imaging examinations were collected. The activity of coagulation factors was measured before the treatment. Single factor X deficiency was seen in one patient. Two cases had factor Ⅶ deficiency, while four other patients had multiple factor deficiency. The time from onset of symptoms to diagnosis ranged from 2 to 10 months. After anti-MM treatment started and plasma or coagulation factors were transfused, the prolonged coagulation time returned to normal from 28-84 days. Most of these patients presented large, deep and multiple sites of hematoma, which caused concerns of bone marrow puncture and may direct to other differential diagnoses. This is helpful to improve physicians' understanding of the special clinical characteristics in MM patients.
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Affiliation(s)
- C F Zhao
- Department of Hematology, Affiliated Jinhua Hospital, Zhejiang University School of Medicine, JinHua Municipal Central Hospital, Zhejiang, Jinhua 321000, China
| | - H X Hu
- Department of Hematology, Affiliated Jinhua Hospital, Zhejiang University School of Medicine, JinHua Municipal Central Hospital, Zhejiang, Jinhua 321000, China
| | - L Chen
- Department of Hematology, Affiliated Jinhua Hospital, Zhejiang University School of Medicine, JinHua Municipal Central Hospital, Zhejiang, Jinhua 321000, China
| | - L L Wang
- Department of Hematology, Affiliated Jinhua Hospital, Zhejiang University School of Medicine, JinHua Municipal Central Hospital, Zhejiang, Jinhua 321000, China
| | - B Wei
- Department of Hematology, Affiliated Jinhua Hospital, Zhejiang University School of Medicine, JinHua Municipal Central Hospital, Zhejiang, Jinhua 321000, China
| | - H Xu
- Department of Hematology, Affiliated Jinhua Hospital, Zhejiang University School of Medicine, JinHua Municipal Central Hospital, Zhejiang, Jinhua 321000, China
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Chen ZD, Li MS, Wei B, Xi HQ, Chen L. [Evaluation of basic laparoscopic training under 5A teaching mode]. Zhonghua Wei Chang Wai Ke Za Zhi 2021; 24:711-717. [PMID: 34412189 DOI: 10.3760/cma.j.cn.441530-20200706-00403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To evaluate the rationality and effectiveness of basic laparoscopic training under 5A teaching mode. Methods: A prospective randomized controlled study was conducted. The teaching records of 70 trainees who received basic laparoscopic traning at the Laparoscopic Surgical Training Base in Chinese PLA General Hospital from July to December 2019 were analyzed. All the trainees participating in the laparoscopy training had obtained the national practicing physician certificates, including 12 junior physicians of our center, 9 intermediate physicians of our center, 19 advanced physicians, 13 postgraduate students, 8 doctoral students, and 9 surgical standardized training physicians. A random number table method was used to divide all the trainees into two groups: the traditional teaching group or the 5A teaching group (35 people in each group). In the traditional teaching group, the training of 4 modules of " precise beans, quincuncial piles, ring positioning and knot-tying suture" modules according to a fixed sequence and schedule was carried out. Each module had a learning time of 8 hours. In the 5A teaching group, the training started from five dimensions of analysis, aim, accomplishment, appraise and advance. Before conducting each stage of training, the actual operation ability of the trainees was tested, each class hour was designed individually, accurate teaching was conducted to the trainees, the ability of the trainees was evaluated dynamically, and the previous steps were cycled periodically based on class hours. The operating time and pass rate of trainees of two groups in the basic operation module of laparoscopy were statistically analyzed, and a hierarchical analysis of related influencing factors was conducted. Results: The time of above modules before training in the 5A teaching group and the traditional teaching group was similar (all P>0.05). After definitive training, the time required for trainees in 5A teaching group and traditional teaching group to complete the 4 modules was shortened to varying degrees. Compared to traditional teaching group, 5A teaching group spent less time in completing each project [precise beans: (63.2±10.1) seconds vs. (83.6±18.7) seconds, quincuncial piles: (56.2±7.3) seconds vs. (101.4±31.7) seconds, ring positioning: (84.2±13.7) seconds vs. (127.3±28.5) seconds, knot-tying suture: (263.2±41.8) seconds vs.(428.8±95.2) seconds, all P<0.05], and had higher pass rates [precise beans: 97.1% (34/35) vs. 80.0% (28/35), quincuncial piles: 91.4% (32/35) vs.71.4% (25/35), ring positioning: 100.0% (35/35) vs. 82.9% (29/35), knot-tying suture: 77.1% (27/35) vs. 60.0% (21/35), all P<0.05]. Among the junior trainees (junior physicians of our center, postgraduate students, doctoral students, and standardized surgical training physicians) and intermediate trainees (intermediate physicians of our center and advanced physicians), the 5A teaching group completed 3 modules (quincuncial piles, ring positioning and knot-tying suture) faster than the traditional teaching group [junior trainees: quincuncial piles (76.4±12.4) seconds vs. (139.8±41.6) seconds, ring positioning (92.2±20.5) seconds vs. (131.3±28.4) seconds, knot-tying suture (293.8±66.7) seconds vs. (444.3±103.3) seconds; intermediate trainees: quincuncial piles (51.4±5.9) seconds vs. (94.7±8.6) seconds, ring positioning (63.9±13.5) seconds vs. (87.5±18.6) seconds, knot-tying suture (210.1±35.6) seconds vs. (367.5±54.9) seconds, all P<0.05]. Conclusion: 5A teaching mode can acheive better training results compared with the traditional teaching mode in basic laparoscopic training, and is worthy of further popularization and application.
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Affiliation(s)
- Z D Chen
- Department of Abdominal Trauma Surgery, Faculty of General Surgery, The First Medical Center, Chinese PLA General Hospital, Beijing 100853, China CMDA Laparoscopic Surgeon Training Base (PLA General Hospital Base), Beijing 100853, China
| | - M S Li
- Department of Gastric Surgery, Faculty of General Surgery, The First Medical Center, Chinese PLA General Hospital, Beijing 100853, China Beijing Boyi Times Education & Technology Co., Ltd. Beijing 100122, China
| | - B Wei
- Department of Abdominal Trauma Surgery, Faculty of General Surgery, The First Medical Center, Chinese PLA General Hospital, Beijing 100853, China CMDA Laparoscopic Surgeon Training Base (PLA General Hospital Base), Beijing 100853, China
| | - H Q Xi
- Department of Abdominal Trauma Surgery, Faculty of General Surgery, The First Medical Center, Chinese PLA General Hospital, Beijing 100853, China CMDA Laparoscopic Surgeon Training Base (PLA General Hospital Base), Beijing 100853, China
| | - L Chen
- CMDA Laparoscopic Surgeon Training Base (PLA General Hospital Base), Beijing 100853, China Department of Gastric Surgery, Faculty of General Surgery, The First Medical Center, Chinese PLA General Hospital, Beijing 100853, China
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Hu L, Jin Y, Lin M, Wei B. Temperature dependence of thermophysical properties for liquid Zr-Sn-Nb-Fe alloy measured at electrostatic levitation state. Chem Phys Lett 2021. [DOI: 10.1016/j.cplett.2021.138667] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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Liu J, Liu X, Wei B, Liu J, Wang Y, Liu H. [Effect of stable overexpression of XAF1 gene on biological characteristics of ovarian cancer A2780 cells]. Nan Fang Yi Ke Da Xue Xue Bao 2021; 41:760-766. [PMID: 34134965 DOI: 10.12122/j.issn.1673-4254.2021.05.18] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
Abstract
OBJECTIVE To construct an ovarian cancer cell line stably overexpressing XAF1 gene and observe the effects of XAF1 gene overexpression on proliferation, apoptosis, cell cycle and sensitivity to paclitaxel of the cells. OBJECTIVE Ovarian cancer A2780 cells were transfected with the plasmids pcDNA3.1(+) or pcDNA3.1(+)-XAF1, and the cells stably Over expressing XAF1 (A2780/XAF1 cells) were screened using G418. Cell clone formation assay and CCK8 assay were used to evaluate the changes in proliferation and paclitaxel sensitivity of the transfected cells, and cell cycle and apoptosis of the cells were analyzed using flow cytometry. OBJECTIVE We successfully obtained A2780/XAF1 cells stably overexpressing XAF1, which exhibited no significant changes in cell morphology. Compared with the negative control cells (A2780/NC), A2780/XAF1 cells had lowered clone formation ability (P=0.0016) and attenuated proliferative activity on the first (P=0.009) and third (P=0.0035) days after cell adherence with also a significantly increased percentage of cells in G2-M phase (P < 0.001). A2780/XAF1 cells showed significantly higher apoptosis rates than A2780/NC cells in the absence of apoptotic stimulation, in serum-free culture or following paclitaxel induction (P < 0.001). The proliferative activity of A2780/XAF1 cells was significantly lower than that of A2780/NC cells after exposure to different paclitaxel concentrations (P < 0.001). The half inhibitory concentration of paclitaxel was significantly lower in A2780/XAF1 than in A2780/NC cells. OBJECTIVE Overexpression of XAF1 significantly inhibits the proliferation, induces cell cycle arrest, promotes apoptosis, and increases paclitaxel sensitivity in ovarian cancer cells.
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Affiliation(s)
- J Liu
- Department of Obstetrics and Gynecology, West China Second Hospital, Sichuan University, Chengdu 610041, China.,Key Laboratory of Birth Defects and Related Gynecological Diseases of the Ministry of Education, Sichuan University, Chengdu 610041, China
| | - X Liu
- Department of Gynecology, The Sixth People's Hospital of Chengdu, Chengdu 610051
| | - B Wei
- Department of Gynecology, Affiliated Hospital of Chengdu University of Traditional Chinese Medicine, Chengdu 610075, China
| | - J Liu
- Department of Obstetrics and Gynecology, West China Second Hospital, Sichuan University, Chengdu 610041, China.,Key Laboratory of Birth Defects and Related Gynecological Diseases of the Ministry of Education, Sichuan University, Chengdu 610041, China
| | - Y Wang
- Department of Obstetrics and Gynecology, West China Second Hospital, Sichuan University, Chengdu 610041, China.,Key Laboratory of Birth Defects and Related Gynecological Diseases of the Ministry of Education, Sichuan University, Chengdu 610041, China
| | - H Liu
- Department of Obstetrics and Gynecology, West China Second Hospital, Sichuan University, Chengdu 610041, China.,Key Laboratory of Birth Defects and Related Gynecological Diseases of the Ministry of Education, Sichuan University, Chengdu 610041, China
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Hao Y, Ji L, Gao D, Fan Y, Wei B, Geng Y, Zhang X, Li G, Zhang Z. AB0280 THE INFLUENCE OF TARGET THERAPY AS WELL AS GLUCOCORTICOIDS TAPERING ON DISEASE FLARE IN SYSTEMIC LUPUS ERYTHEMATOSUS: RESULTS FROM A PROSPECTIVE CHINESE COHORT. Ann Rheum Dis 2021. [DOI: 10.1136/annrheumdis-2021-eular.623] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
Abstract
Background:Treat-to-target in systemic lupus erythematosus (SLE) has been proposed for 7 years and several recommendations were developed [1]. In these recommendations, prevention of flares should be a realistic target. Meanwhile, ‘remission’ or ‘low disease activity’ was recommended as the treatment target and minimizing glucocorticoids (GC) dose or withdrawal if possible was suggested in the maintenance treatment. However, would target therapy and GC tapering/withdrawal influence disease flare?Objectives:To investigate the frequency and determinants of disease flare, especially the influence of target therapy as well as GC tapering on flare in Chinese lupus patients.Methods:The baseline and follow-up data of all consecutive patients in a prospective longitudinal lupus cohort from January 2017 to June 2020 were collected. The lupus low disease activity state (LLDAS) was defined as in Golder et al., 2019[2]. The criteria for remission were from DORIS definitions [3]. Flare was assessed using the SELENA-SLEDAI flare index [4].Results:We enrolled 185 patients with disease duration at recruitment of 2.3 (0.8–7.7) years. During the 26.2 (12.5-34.5) months of follow-up, 73 (39.5%) patients experienced 95 flares, including 70 mild/moderate and 25 severe flares. The incidence of flare per patient-year was 0.27. Kaplan-Meier analyses showed that compared with those who never achieved LLDAS or DORIS, the patients who achieved the target at least once had a higher flare free survival rate; meanwhile, the patients with prednisone withdrawn had significantly lower flare free rate compared with those with small dose of GC maintained (≤7.5mg/d) (Figure 1A), but among the patients with different prednisone maintain doses (7.5~5mg, 5~2.5mg, and ≤2.5mg) there was not significant difference (Figure 1B). Cox regression analysis showed that younger age at disease onset and lower Complement 3 (C3) level at recruitment were independent risk factors for flare and achieving LLDAS or DORIS ≥50% of visits was independent protective factor (Table 1).Conclusion:In this Chinese prospective SLE cohort, age at disease onset, C3 level at recruitment and therapeutic target achieving influenced disease flare independently and significantly. GC tapering in appropriate patients and with appropriate pace did not increase the flare rate, but prednisone withdrawal may induce more disease exacerbation, which needs to be confirmed by large prospective studies.References:[1]Van Vollenhoven R F, et al. Treat-to-target in systemic lupus erythematosus: recommendations from an international task force. Ann Rheum Dis, 2014. 73(6): 958-967[2]Golder, V., et al. Lupus low disease activity state as a treatment endpoint for systemic lupus erythematosus: a prospective validation study. The Lancet Rheumatology, 2019. 1(2): p. e95-e102.[3]van Vollenhoven R, et al. A framework for remission in SLE: consensus findings from a large international task force on definitions of remission in SLE (DORIS). Ann Rheum Dis. 2017. 76(3): 554–561.[4]Petri M, et al. Classification and definition of major flares in SLE clinical trials. Lupus. 1999. 8(8): 685-691.Table 1.Determinants of disease flare by multivariate Cox regression analysesModel 1(LLDAS) ΔModel 2(RONT) ΔModel 3(Complete RONT) ΔHR95%CIP valueHR95%CIP valueHR95%CIP valueAge at disease onset (years)†0.970.95-0.990.0040.970.95-0.990.0030.970.95-0.990.003Anti-dsDNA positive at recruitment1.340.82-2.180.2171.120.68-1.850.6491.190.73-1.960.486C3 (mg/L) at recruitment0.9980.997-0.9990.0040.9980.997-0.9990.0070.9980.997-1.0000.010Minimum prednisone dose during follow- up (mg/d)0.980.90-1.080.7161.010.94-1.080.7471.040.97-1.110.243Therapeutic target achieved≥50% of observationsΔ0.600.39-0.940.0010.540.34-0.870.0110.680.51-0.920.011Δ In the three hazard models, the different target achievement status were included respectively.RONT: Clinical remission on treatment; Complete RONT: Complete remission on treatment.Disclosure of Interests:None declared
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Cui H, Wei B. [A novel classification and strategy choice of digestive tract reconstruction procedures after function-preserving gastrectomy for early gastric caner]. Zhonghua Wei Chang Wai Ke Za Zhi 2021; 24:392-396. [PMID: 34000767 DOI: 10.3760/cma.j.issn.441530-20210305-00101] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Function-preserving gastrectomy (FPG) can be regarded as a concrete embodiment of precise treatment for early gastric cancer. Digestive tract reconstruction plays an important role in FPG. The aims of reconstruction mainly include the preservation of normal digestive tract and digestive function, the reconstruction of pivotal anatomical structure, and the consequent improvement of postoperative quality of life. We establish a new classification of digestive tract reconstruction based on the different role of digestive tract reconstructions in FPG for early gastric cancer, meanwhile we briefly summarize current progress and elucidate surgical indications. We hope that it can provide theoretical reference for surgeons to choose the appropriate procedure of digestive tract reconstruction after FPG.
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Affiliation(s)
- H Cui
- Department of General Surgery, The First Medical Center, Chinese PLA General Hospital, Beijing 100853, China
| | - B Wei
- Department of General Surgery, The First Medical Center, Chinese PLA General Hospital, Beijing 100853, China
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Cui H, Zhang KC, Cao B, Deng H, Liu GX, Cui JX, Xie TY, Liang WQ, Zhang QP, Wang N, Chen L, Wei B. [Risk factors of postoperative complication after total gastrectomy in advanced gastric cancer patients receiving neoadjuvant chemotherapy]. Zhonghua Wei Chang Wai Ke Za Zhi 2021; 24:153-159. [PMID: 33508921 DOI: 10.3760/cma.j.cn.441530-20200905-00512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: At present, there are few studies focusing on the factors short-term complications after total gastrectomy in patients with advanced gastric cancer receiving neoadjuvant chemotherapy (NACT). The purpose of this study is to provide a reference for clinical prevention of complications in these patients. Methods: A retrospective case-control study was conducted. Case inclusion criteria: (1) clinical stage II-III gastric cancer diagnosed by preoperative gastroscopy, pathology, abdominal CT, EUS or PET-CT; (2) evaluated suitable for NACT by MDT discussion; (3) no previous history of other malignant tumors and no concurrent tumor; (4) undergoing total gastrectomy+ D2 lymphadenectomy after NACT. Exclusion criteria: (1) age <18 or >80 years old; (2) severe concurrent diseases, and ASA classification>grade III; (3) stump gastric cancer or history of gastric surgery; (4) incomplete clinicopathological data. According to the above criteria, clinicopathological data of 140 advanced gastric cancer patients who underwent total gastrectomy after NACT in Chinese PLA General Hospital between June 2012 and June 2019 were collected, including 109 males and 31 females with mean age of (56.9±11.4) years and body mass indey (BMI) of (23.3±3.1) kg/m(2). Logistic analysis was used to analyze the relationship between postoperative complication and clinicopathological data. Factors in univariate analysis with P<0.05 were included in the multivariate analysis. Results: Postoperative complications (Clavien-Dindo classification ≥ II) occurred in 35 cases (25.0%) and severe complications (Clavien-Dindo classification ≥ IIIa) occurred in 4 cases (2.9%), including 1 case of esophago-jejunal anastomotic leakage, 1 case of vena cava thrombosis, 1 case of pleural effusion, 1 case of septic shock during perioperative days resulting in death. Univariate analysis showed that BMI (P=0.011), cycle of NACT (P=0.027), tumor diameter (P=0.021), and vascular invasion (P=0.033) were associated with postoperative complication within 30 days, while open/laparoscopic total gastrectomy were not associated with postoperative complication (P=0.926). Multivariate analysis revealed that BMI ≥ 25 kg/m(2) (OR=3.294, 95% CI: 1.343-8.079, P=0.009) and < 4 cycles of NACT (OR=2.922, 95% CI: 1.217-7.016, P=0.016) were independent risk factors for postoperative complication. The 3-year overall survival rates of patients with or without complication were 54.4% and 64.0%, respectively (P=0.395), and 3-year disease-free survival rates were 47.4% and 52.9%, respectively (P=0.587). Conclusions: Higher BMI and fewer cycles of NACT are independent risk factors of postoperative complication in advanced gastric cancer patients undergoing total gastrectomy after NACT. No obvious association is found between postoperative complication and surgical approaches.
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Affiliation(s)
- H Cui
- School of Medicine, Nankai University, Tianjin 300071, China
| | - K C Zhang
- Department of General Surgery & Institute of General Surgery, Chinese PLA General Hospital, Beijing 100853, China
| | - B Cao
- Department of General Surgery & Institute of General Surgery, Chinese PLA General Hospital, Beijing 100853, China
| | - H Deng
- Department of General Surgery & Institute of General Surgery, Chinese PLA General Hospital, Beijing 100853, China
| | - G X Liu
- Department of General Surgery & Institute of General Surgery, Chinese PLA General Hospital, Beijing 100853, China
| | - J X Cui
- Department of General Surgery & Institute of General Surgery, Chinese PLA General Hospital, Beijing 100853, China
| | - T Y Xie
- School of Medicine, Nankai University, Tianjin 300071, China
| | - W Q Liang
- Department of General Surgery & Institute of General Surgery, Chinese PLA General Hospital, Beijing 100853, China
| | - Q P Zhang
- Department of General Surgery & Institute of General Surgery, Chinese PLA General Hospital, Beijing 100853, China
| | - N Wang
- Department of General Surgery & Institute of General Surgery, Chinese PLA General Hospital, Beijing 100853, China
| | - L Chen
- Department of General Surgery & Institute of General Surgery, Chinese PLA General Hospital, Beijing 100853, China
| | - B Wei
- Department of General Surgery & Institute of General Surgery, Chinese PLA General Hospital, Beijing 100853, China
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21
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Liang WQ, Xi HQ, Qiao S, Cui JX, Zhang KC, Gao YH, Song YN, Zhang L, Luo H, Wei B, Xue WG, Chen L. [Analysis of clinicopathologic characteristics of gastric cancer patients undergoing gastrectomy based on a single-center gastric cancer database with above 10 000 cases]. Zhonghua Wei Chang Wai Ke Za Zhi 2020; 23:1051-1058. [PMID: 33212553 DOI: 10.3760/cma.j.cn.441530-20200117-00031] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: The storage of medical data has been digitized in China, but a unified and structured model has not yet been established. The standardized collection, analysis and sorting of tumor clinical data is the foundation of improving the standard of tumor diagnosis and treatment. Therefore, establishing a database platform of gastric cancer (GC) is an urgent need to integrate data resources and improve the level of diagnosis and treatment. The population economics indexes of GC patients in the last 20 years are analyzed in a single-center GC database. The medical records were structured by natural language processing technology. Authors aim to investigate the clinical pathological characteristics, staging and survival of the GC patients with gastrectomy. Method: A retrospective cohort study was carried out. Clinicopatological data of patients receiving surgical treatment from 2000 to 2019 were retrospectively collected. According to the gastric cancer TNM staging guidelines from the Union for International Cancer Control and the American Joint Committee on Cancer (UICC/AJCC) 8th edition, the structured gastric cancer clinicopathological data were re-evaluated and interpreted. The Kaplan-Meier method and the log-rank test were used to compare survival rate among different groups of patients with complete follow-up data of 2010-2016. Results: Clinicopathological data of 13 492 GC patients were enrolled. The ratio of men to women in the whole group was 3.25:1.00, including 10 320 men with average onset age of 59.68 years, which was basically stable in recent 20 years, and 3172 women with average onset age of 55.93 years, which presented a trend of average increasement of 0.17 year per year. The average hospitalization duration for GC patients showed a decreasing trend year by year, which was 13.87 days in 2019. Average hospitalization cost for GC patients was increasing year by year, with a peak of 83 600 CNY in 2017 and 75 400 CNY in 2019. By natural language identification and exclusion criteria screening, a total of 7218 GC patients obtained structured clinicopathological information. Analysis on clinicopathological characteristics of 3626 GC patients in the last 5 years showed that the average diameter of tumor was (4.44±2.61) cm; the average number of harvested lymph node was 24.30±13.29; the proportion of surgical methods were as following: open surgery in 1398 cases (38.55%), laparoscopic surgery in 1856 cases (51.19%) and robotic surgery in 372 cases (10.26%). The postoperative pathological stage was as following: IA in 658 cases (18.15%), IB in 318 cases (8.77%), IIA in 559 cases (15.42%), IIB in 543 (14.98%), III A in 632 (17.43%), III B in 612 cases (16.88%), III C in 276 cases (7.61%), and IV in 28 cases (0.77%). Complete follow-up data of 3431 patients from 2010 to 2016 were presented. The 1-, 3- and 5-year survival rates were 82%, 69% and 60%, respectively for the whole group. The 1-, 3- and 5-year survival rates for patients undergoing laparoscopic surgery were 83%, 70% and 64%, respectively, and for those undergoing open surgery were 81%, 67% and 56%, respectively, and the difference between the two groups was not statistically significant (P=0.109). The 5-year survival rate of GC patients with different AJCC stages was as following: 88% in IA, 77% in IB, 70% in II A, 62% in II B, 44% in III A, 32% in III B, 22% in III C, and 17% in IV. Conclusion: This study provides basic data for the establishment of comprehensive diagnosis and treatment model of multicenter, shedding light on the improvement of comprehensive treatment of GC in China.
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Affiliation(s)
- W Q Liang
- Department of Gastric Surgery, General Surgery of Chinese PLA General Hospital, Beijing 100853, China
| | - H Q Xi
- Department of Abdominal Trauma, General Surgery of Chinese PLA General Hospital, Beijing 100853, China
| | - S Qiao
- Medical Big Data Center of Chinese PLA General Hospital, Beijing 100853, China
| | - J X Cui
- Department of Abdominal Trauma, General Surgery of Chinese PLA General Hospital, Beijing 100853, China
| | - K C Zhang
- Department of Gastric Surgery, General Surgery of Chinese PLA General Hospital, Beijing 100853, China
| | - Y H Gao
- Department of Gastric Surgery, General Surgery of Chinese PLA General Hospital, Beijing 100853, China
| | - Y N Song
- Medical Big Data Center of Chinese PLA General Hospital, Beijing 100853, China
| | - L Zhang
- Institute of General Surgery, General Surgery of Chinese PLA General Hospital, Beijing 100853, China
| | - H Luo
- Medical Big Data Center of Chinese PLA General Hospital, Beijing 100853, China
| | - B Wei
- Department of Abdominal Trauma, General Surgery of Chinese PLA General Hospital, Beijing 100853, China
| | - W G Xue
- Medical Big Data Center of Chinese PLA General Hospital, Beijing 100853, China
| | - L Chen
- Department of General Surgery of Chinese PLA General Hospital, Beijing 100853, China
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Tian Q, Si J, Jiang F, Xu R, Wei B, Huang B, Li Q, Jiang Z, Zhao T. Caspofungin combined with TMP/SMZ as a first-line therapy for moderate-to-severe PCP in patients with human immunodeficiency virus infection. HIV Med 2020; 22:307-313. [PMID: 33277811 PMCID: PMC7984216 DOI: 10.1111/hiv.13013] [Citation(s) in RCA: 10] [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] [Accepted: 10/12/2020] [Indexed: 01/05/2023]
Abstract
OBJECTIVES The effectiveness of trimethoprim/sulfamethoxazole (TMP/SMZ) for pneumocystis pneumonia (PCP) is limited with adverse events. Caspofungin, by inhibiting the cyst form of Pneumocystis jirovecii, may be an alternative therapy for PCP. However, the availability of clinical data about caspofungin combined with TMP/SMZ in the treatment of PCP in HIV-infected patients is limited. Thus, we aimed to examine the clinical effectiveness and safety of caspofungin combined with TMP/SMZ as a first-line therapy for moderate-to-severe PCP in HIV-infected patients. METHODS From January 2017 to December 2019, data of HIV-infected patients with moderate-to-severe PCP who received either TMP/SMZ alone or caspofungin combined with TMP/SMZ as first-line therapy were retrospectively reviewed to assess the effectiveness and safety of each regimen. The Kaplan-Meier curve and log-rank test were used for survival analysis. RESULTS A total of 278 patients met the criteria. The overall positive response rate of PCP treatment was 48.92%, and the overall all-cause in-hospital mortality rate was 33.09%. Patients who received combination therapy consisting of caspofungin and TMP/SMZ had a better positive response rate (59.44% vs. 37.78%, P < 0.001) and lower all-cause in-hospital mortality rate (24.48% vs. 42.22%, P = 0.003). Also, patients who received combination therapy had higher survival rate during a hospital stay (75.52% vs. 57.78%, P = 0.004), and those who received longer combination therapy were more likely to have higher survival rate (P = 0.042). We found that age (P = 0.019), CD4 cell count (P = 0.001) and therapeutic regimen (P = 0.002) were significant risk factors for all-cause in-hospital mortality rate in univariate analysis. In multivariate analysis, only CD4 cell count and therapeutic regimen were statistically significant factors associated with all-cause in-hospital mortality rate. Patients with a CD4 count of > 30 cells/µL and patients who received combination therapy consisting of caspofungin and TMP/SMZ were more likely to survive from PCP (P = 0.011 and P = 0.002, respectively). There were no additional severe adverse events caused by adding caspofungin. CONCLUSIONS For HIV-infected patients with moderate-to-severe PCP, combination therapy with caspofungin and TMP/SMZ is an effective and promising first-line therapy with no greater number of adverse events compared with TMP/SMZ monotherapy. Patients who received caspofungin had better positive response rates and lower all-cause in-hospital mortality rates. Also, we recommend early initiation of caspofungin.
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Affiliation(s)
- Q Tian
- The Third People's Hospital of Guilin, Guangxi, China
| | - J Si
- The First Hospital of Jiaxing, Zhejiang, China
| | - F Jiang
- The Third People's Hospital of Guilin, Guangxi, China
| | - R Xu
- The Third People's Hospital of Guilin, Guangxi, China
| | - B Wei
- The Third People's Hospital of Guilin, Guangxi, China
| | - B Huang
- The Third People's Hospital of Guilin, Guangxi, China
| | - Q Li
- The Third People's Hospital of Guilin, Guangxi, China
| | - Z Jiang
- People's Hospital of Liuzhou, Guangxi, China
| | - T Zhao
- The Third People's Hospital of Guilin, Guangxi, China
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Li J, Guo T, Dong D, Zhang X, Chen X, Feng Y, Wei B, Zhang W, Zhao M, Wan J. Defining heart disease risk for death in COVID-19 infection. QJM 2020; 113:876-882. [PMID: 32790836 PMCID: PMC7454913 DOI: 10.1093/qjmed/hcaa246] [Citation(s) in RCA: 23] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/01/2020] [Revised: 08/04/2020] [Indexed: 02/06/2023] Open
Abstract
BACKGROUND Cardiovascular disease (CVD) was in common in coronavirus disease 2019 (COVID-19) patients and associated with unfavorable outcomes. We aimed to compare the clinical observations and outcomes of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2)-infected patients with or without CVD. METHODS Patients with laboratory-confirmed SARS-CoV-2 infection were clinically evaluated at Wuhan Seventh People's Hospital, Wuhan, China, from 23 January to 14 March 2020. Demographic data, laboratory findings, comorbidities, treatments and outcomes were collected and analyzed in COVID-19 patients with and without CVD. RESULTS Among 596 patients with COVID-19, 215 (36.1%) of them with CVD. Compared with patients without CVD, these patients were significantly older (66 vs. 52 years) and had higher proportion of men (52.5% vs. 43.8%). Complications in the course of disease were more common in patients with CVD, included acute respiratory distress syndrome (22.8% vs. 8.1%), malignant arrhythmias (3.7% vs. 1.0%) including ventricular tachycardia/ventricular fibrillation, acute coagulopathy(7.9% vs. 1.8%) and acute kidney injury (11.6% vs. 3.4%). The rate of glucocorticoid therapy (36.7% vs. 25.5%), Vitamin C (23.3% vs. 11.8%), mechanical ventilation (21.9% vs. 7.6%), intensive care unit admission (12.6% vs. 3.7%) and mortality (16.7% vs. 4.7%) were higher in patients with CVD (both P < 0.05). The multivariable Cox regression models showed that older age (≥65 years old) (HR 3.165, 95% CI 1.722-5.817) and patients with CVD (HR 2.166, 95% CI 1.189-3.948) were independent risk factors for death. CONCLUSIONS CVD are independent risk factors for COVID-19 patients. COVID-19 patients with CVD were more severe and had higher mortality rate, early intervention and vigilance should be taken.
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Affiliation(s)
- J Li
- From the Department of Cardiology, Zhongnan Hospital of Wuhan University, 169 East Lake Road, Wuhan 430071, China
| | - T Guo
- From the Department of Cardiology, Zhongnan Hospital of Wuhan University, 169 East Lake Road, Wuhan 430071, China
| | - D Dong
- Department of Infectious Disease, Wuhan Seventh People’s Hospital, 6 Zhongnan 2nd Road, Wuhan 430071, China
| | - X Zhang
- From the Department of Cardiology, Zhongnan Hospital of Wuhan University, 169 East Lake Road, Wuhan 430071, China
| | - X Chen
- From the Department of Cardiology, Zhongnan Hospital of Wuhan University, 169 East Lake Road, Wuhan 430071, China
| | - Y Feng
- From the Department of Cardiology, Zhongnan Hospital of Wuhan University, 169 East Lake Road, Wuhan 430071, China
| | - B Wei
- From the Department of Cardiology, Zhongnan Hospital of Wuhan University, 169 East Lake Road, Wuhan 430071, China
| | - W Zhang
- From the Department of Cardiology, Zhongnan Hospital of Wuhan University, 169 East Lake Road, Wuhan 430071, China
| | - M Zhao
- Department of Biomedical Engineering, School of Basic Medical Sciences, Wuhan University, 115 East Lake Road, Wuhan 430071, China
| | - J Wan
- From the Department of Cardiology, Zhongnan Hospital of Wuhan University, 169 East Lake Road, Wuhan 430071, China
- correspondence to J. Wan, Department of Cardiology, Zhongnan Hospital of Wuhan University, 169 East Lake Road, Wuhan, Hubei 430071, China.
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Luo T, Zhong X, He P, Yan X, Tian T, Wei B, Zhang Z, Li J, Zheng H. 225P Phase II study of pyrotinib plus albumin-bound paclitaxel and trastuzumab as neoadjuvant treatment in HER2-positive early or locally advanced breast cancer. Ann Oncol 2020. [DOI: 10.1016/j.annonc.2020.08.346] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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25
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Zhang ZY, Mao XJ, Jiang GB, Miao GG, Wei B, Deng YX, Leng JF. [Application and efficacy of double tract digestive reconstruction with jejunal interposition after proximal gastrectomy for Siewert II-III adenocarcinoma of esophagogastric junction]. Zhonghua Wei Chang Wai Ke Za Zhi 2020; 23:408-411. [PMID: 32306611 DOI: 10.3760/cma.j.cn.441530-20190828-00327] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
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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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27
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Wang L, Hu L, Zhao J, Wei B. Ultrafast growth kinetics of titanium dendrites investigated by electrostatic levitation experiments and molecular dynamics simulations. Chem Phys Lett 2020. [DOI: 10.1016/j.cplett.2020.137141] [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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28
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Noland WE, Kumar HV, Sharma A, Wei B, Girmachew S. Fe-Catalyzed Domino Intramolecular Nucleophilic Substitution of 4-Hydroxychromen-2-one and Pyran-2-one/Ring Opening of Activated Arene: An Easy Access to 2,3-Disubstituted Furo[3,2,-c]coumarins and Furo[3,2,-c]pyran-4-ones via Nonsymmetric Triarylmethanes. Org Lett 2020; 22:1801-1806. [DOI: 10.1021/acs.orglett.0c00123] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Wayland E. Noland
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Honnaiah Vijay Kumar
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Arjun Sharma
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Binyuan Wei
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
| | - Selamawit Girmachew
- Department of Chemistry, University of Minnesota, 207 Pleasant Street SE, Minneapolis, Minnesota 55455, United States
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Guo X, Bian SB, Peng Z, Wang N, Wei B, Cui JX, Wang XX, Xie TY, Xi HQ, Chen L. [Surgical selection and metastatic warning of splenic lymph node dissection in advanced gastric cancer radical surgery: a prospective, single-center, randomized controlled trial]. Zhonghua Wei Chang Wai Ke Za Zhi 2020; 23:144-151. [PMID: 32074794 DOI: 10.3760/cma.j.issn.1671-0274.2020.02.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the surgical options for splenic lymph node dissection in patients with advanced gastric cancer undergoing radical total gastrectomy, and to evaluate the sentinel effect of No. 4s lymph node on splenic lymph node metastasis. Methods: A prospective, single-center, randomized and controlled study was carried out (Trial registration, No.NCT02980861). Enrollment criteria: (1) >18 years old and <65 years old; (2) gastric adenocarcinoma locating in the proximal or corpus; (3) preoperative clinical staging as cT2-4aN0-3M0; (4) D2 radical total gastrectomy feasible judged before operation; (5) physical ability score 0 to 1; (6) I to III of ASA classification. Pregnant or lactating women, patients with severe mental illness or previous history of upper abdominal surgery, those suffered from other malignant tumors in the past 5 years, or heart and lung system diseases judged to affect surgery before operation, those receiving preoperative chemotherapy, radiotherapy or targeted therapies, and distant metastases being found during surgery were excluded. According to above criteria, 222 patients at The First Medical Center of Chinese PLA General Hospital from December 2016 to December 2017 were enrolled prospectively and were randomly divided into the laparoscopic splenic hilar lymph node dissection group (laparoscopic group, n=114) and the open splenic hilar lymph node dissection group (open group, n=108). The result of rapid frozen immunohistochemistry of harvested No.4s lymph nodes was used to evaluate the sensitivity and specificity of sentinel effect on splenic hilar lymph node metastasis. The surgical parameters, postoperative recovery parameters, and complication rates were compared between the two groups. Results: There were 80 males and 34 females in the lapascopic group with a mean age of (56.1±10.2) years, and 69 males and 39 females in the open group with a mean age of (58.4±10.9) years. There were no significant differences in baseline data between the two groups (all P>0.05). Total blood loss was less in the laparoscopic group [(96.3±82.4) ml vs. (116.6±101.9) ml, t=1.124, P<0.001], and the amount of bleeding from the splenic hilar lymph nodes dissected was also less than that in the open group [(25.3±17.8) ml vs. (59.5±36.4) ml, t=1.172, P<0.001]. However, the operation time, the time of splenic hilar lymph node, the number of lymph node dissected and number of splenic hilar lymph node dissected were not significantly different between the two groups (all P>0.05). As compared to the open group, the laparoscopic group had shorter time to the first flatus [(1.3±1.2) days vs. (1.6±1.5) days, t=1.665, P=0.021], shorter time to fluid diet [(4.6±1.4) days vs. (4.9 ± 1.6) days, t=1.436, P=0.007], shorter time to remove nasogastric tube [(3.9±2.6) days vs. (4.3±2.4) days, t=0.687, P<0.001] and shorter hospital stay [(10.3±6.6) days vs. (12.1±7.2) days, t=0.697, P<0.001]. Complication rate was 14.0% (16/114) and (12.0%) ((1)3/108) in the laparoscopic group and the open group, respectively, without significant difference (χ(2)=6.723, P=0.331). The sensitivity of the No. 4s lymph node for the prediction of splenic hilar lymph node metastasis reached 89.5%, and the specificity reached 99.6%. Conclusions: Laparoscopic technique is safe and feasible in the treatment of splenic hilar lymph node dissection in advanced gastric cancer. The No.4s lymph node examination has good sentinel effect on predicting the metastasis of splenic hilar lymph nodes.
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Affiliation(s)
- X Guo
- Department of General Surgery, Chinese PLA General Hospital, Beijing 100853, China, is now working at the Department of Endoscopic Surgery, Air Force 986th Hospital, Xi'an 710000, China
| | - S B Bian
- Department of General Surgery, Chinese PLA General Hospital, Beijing 100853, China
| | - Z Peng
- Department of General Surgery, Chinese PLA General Hospital, Beijing 100853, China
| | - N Wang
- Department of General Surgery, Chinese PLA General Hospital, Beijing 100853, China
| | - B Wei
- Department of General Surgery, Chinese PLA General Hospital, Beijing 100853, China
| | - J X Cui
- Department of General Surgery, Chinese PLA General Hospital, Beijing 100853, China
| | - X X Wang
- Department of General Surgery, Chinese PLA General Hospital, Beijing 100853, China
| | - T Y Xie
- Department of General Surgery, Chinese PLA General Hospital, Beijing 100853, China
| | - H Q Xi
- Insitiute of General Surgery, Chinese PLA General Hospital, Bejing 100853, China
| | - L Chen
- Department of General Surgery, Chinese PLA General Hospital, Beijing 100853, China
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Wang J, Bailey EH, Sanders HK, Izquierdo M, Crout NMJ, Shaw G, Yang L, Li H, Wei B, Young SD. Using chemical fractionation and speciation to describe uptake of technetium, iodine and selenium by Agrostis capillaris and Lolium perenne. J Environ Radioact 2020; 212:106131. [PMID: 31885365 DOI: 10.1016/j.jenvrad.2019.106131] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/09/2019] [Revised: 12/04/2019] [Accepted: 12/06/2019] [Indexed: 06/10/2023]
Abstract
To understand the dynamic mechanisms governing soil-to-plant transfer of selenium (Se), technetium-99 (99Tc) and iodine (I), a pot experiment was undertaken using 30 contrasting soils after spiking with 77Se, 99Tc and 129I, and incubating for 2.5 years. Two grass species (Agrostis capillaris and Lolium perenne) were grown under controlled conditions for 4 months with 3 cuts at approximately monthly intervals. Native (soil-derived) 78Se and127I, as well as spiked 77Se, 99Tc and 129I, were assayed in soil and plants by ICP-MS. The grasses exhibited similar behaviour with respect to uptake of all three elements. The greatest uptake observed was for 99Tc, followed by 77Se, with least uptake of 129I, reflecting the transformations and interactions with soil of the three isotopes. Unlike soil-derived Se and I, the available pools of 77Se, 99Tc and 129I were substantially depleted by plant uptake across the three cuts with lower concentrations observed in plant tissues in each subsequent cut. Comparison between total plant offtake and various soil species suggested that 77SeO42-, 99TcO4- and 129IO3-, in soluble and adsorbed fractions were the most likely plant-available species. A greater ratio of 127I/129I in the soil solid phase compared to the solution phase confirmed incomplete mixing of spiked 129I with native 127I in the soil, despite the extended incubation period, leading to poor buffering of the spiked available pools. Compared to traditional expressions of soil-plant transfer factor (TFtotal), a transfer factor (TFavailable) expressed using volumetric concentrations of speciated 'available' fractions of each element showed little variation with soil properties.
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Affiliation(s)
- J Wang
- Key Laboratory for Geographical Process Analysis & Simulation, Research Institute of Sustainable Development, Central China Normal University, Wuhan, 430079, People's Republic of China; Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, People's Republic of China
| | - E H Bailey
- School of Biosciences, University of Nottingham, Sutton Bonington Campus, Loughborough, Leicestershire, LE12 5RD, United Kingdom.
| | - H K Sanders
- School of Biosciences, University of Nottingham, Sutton Bonington Campus, Loughborough, Leicestershire, LE12 5RD, United Kingdom
| | - M Izquierdo
- School of Biosciences, University of Nottingham, Sutton Bonington Campus, Loughborough, Leicestershire, LE12 5RD, United Kingdom
| | - N M J Crout
- School of Biosciences, University of Nottingham, Sutton Bonington Campus, Loughborough, Leicestershire, LE12 5RD, United Kingdom
| | - G Shaw
- School of Biosciences, University of Nottingham, Sutton Bonington Campus, Loughborough, Leicestershire, LE12 5RD, United Kingdom
| | - L Yang
- Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, People's Republic of China
| | - H Li
- Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, People's Republic of China
| | - B Wei
- Key Laboratory of Land Surface Pattern and Simulation, Institute of Geographical Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing, 100101, People's Republic of China
| | - S D Young
- School of Biosciences, University of Nottingham, Sutton Bonington Campus, Loughborough, Leicestershire, LE12 5RD, United Kingdom
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Du X, Cao D, Yan F, Gao Y, Chang H, Wei B. CLINICOPATHOLOGICAL CHARACTERISTICS OF MUCINOUS VARIANT OF ANAPLASTIC THYROID CARCINOMA. Acta Endocrinol (Buchar) 2020; 16:377-378. [PMID: 33363665 DOI: 10.4183/aeb.2020.377] [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: 11/20/2022]
Affiliation(s)
- X Du
- Capital Medical University Affiliated Beijing Shijitan Hospital - Pathology, Beijing, China
| | | | - F Yan
- Capital Medical University Affiliated Beijing Chaoyang Hospital - Thyroid and Neck Surgery Department, Beijing, China
| | - Y Gao
- Capital Medical University Affiliated Beijing Chaoyang Hospital - Thyroid and Neck Surgery Department, Beijing, China
| | - H Chang
- Capital Medical University Affiliated Beijing Shijitan Hospital - Pathology, Beijing, China
| | - B Wei
- Capital Medical University Affiliated Beijing Chaoyang Hospital - Thyroid and Neck Surgery Department, Beijing, China
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Xu LJ, Yu XJ, Wei B, Hui HX, Sun Y, Dai J, Chen XF. LncRNA SNHG7 promotes the proliferation of esophageal cancer cells and inhibits its apoptosis. Eur Rev Med Pharmacol Sci 2019; 22:2653-2661. [PMID: 29771415 DOI: 10.26355/eurrev_201805_14961] [Citation(s) in RCA: 24] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Our research studied the expression of long noncoding RNA (lncRNA) SNHG7 in esophageal cancer cells and tissues. The effect of lncRNA SNHG7 on proliferation and apoptosis of esophageal cancer cells has been discussed. PATIENTS AND METHODS Si-SNHG7 was transfected into esophageal cancer cells, and qRT-PCR was performed to detect the expression of lncRNA SNHG7 in esophageal cancer cells and tissues. The effect of SNHG7 on the proliferation of esophageal cancer cells was measured by CCK8 assay and plate cloning assay, respectively. Flow cytometry was used to detect the effect of SNHG7 on the cell cycle and apoptosis rate of esophageal cancer cells. Changes in expression of downstream protein p15 and p16 after si-SNHG7 intervention were analyzed by qRT-PCR and Western blot. RESULTS QRT-PCR showed that the expression of SNHG7 in esophageal cancer tissues and cells was significantly up-regulated. After the si-SNHG7 intervention, the proliferation of esophageal cancer cells was inhibited, the apoptosis rate increased, and the cell cycle was blocked in G1-G0 phase. QRT-PCR and Western blot showed that, after the si-SNHG7 intervention, the expression of p15 and p16 increased significantly. CONCLUSIONS The expression of SNHG7 in the tissues and cells of esophageal cancer is significantly up-regulated. SNHG7 can partly promote the development of esophageal cancer by regulating the expression of p15 and p16.
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Affiliation(s)
- L-J Xu
- Department of Medical Oncology, The Affiliated Huai'an No. 1 People's Hospital of Nanjing Medical University, Huai'an, China.
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Xu LJ, Yu XJ, Wei B, Hui HX, Sun Y, Dai J, Chen XF. Long non-coding RNA DUXAP8 regulates proliferation and invasion of esophageal squamous cell cancer. Eur Rev Med Pharmacol Sci 2019; 22:2646-2652. [PMID: 29771416 DOI: 10.26355/eurrev_201805_14959] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE The purpose of this research was to detect the expression of long non-coding RNA DUXAP8 in esophageal cancer, and to explore its underlying mechanism in the development of esophageal squamous cell carcinoma (ESCC). PATIENTS AND METHODS We collected 78 pairs of esophageal cancer tissues and normal adjacent tissues. The mRNA level of DUXAP8 in these esophageal cancer tissues and corresponding adjacent tissues was detected by quantitative Real-time polymerase chain reaction (qRT-PCR). The relationship between DUXAP8 expression and the prognosis of esophageal cancer was analyzed. Small interfering RNA (siRNA) was applied to reduce the expression of DUXAP8 in ESCC cell lines (TE-1 and KYSE520). Meanwhile, the specific effect of DUXAP8 on the biological functions of ESCC cells was analyzed by CCK-8 assay (cell counting kit-8), colony formation assay and transwell assay, respectively. Furthermore, the regulatory effect of DUXAP8 on Wnt/β-catenin pathway was detected by Western blot. RESULTS DUXAP8 was overexpressed in ESCC tissues than that of normal adjacent tissues. DUXAP8 expression was positively correlated to tumor stage and lymph node metastasis, whereas negatively correlated to the survival rate of ESCC patients. Cell proliferation, colony formation and invasion abilities were significantly decreased after knockdown of DUXAP8 in ESCC cells. Western blot results showed that DUXAP8 could regulate the occurrence of ESCC via Wnt/β-catenin pathway. CONCLUSIONS DUXAP8 expression was significantly correlated with tumor stage, lymph node metastasis and poor prognosis of ESCC patients. DUXAP8 may promote the occurrence of ESCC via Wnt/β-catenin pathway.
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Affiliation(s)
- L-J Xu
- Department of Medical Oncology, Huai'an First People's Hospital, Huai'an, China.
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Chen F, Dong C, Chen C, Yin WD, Zhai W, Ma XY, Wei B. Nitrogen-aeration tuned ultrasonic synthesis of SiO 2@PNIPAm nanoparticles and preparation of temperature responsive Pickering emulsion. Ultrason Sonochem 2019; 58:104705. [PMID: 31554146 DOI: 10.1016/j.ultsonch.2019.104705] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/22/2018] [Revised: 07/01/2019] [Accepted: 07/22/2019] [Indexed: 05/22/2023]
Abstract
Ultrasonic synthesis has shown great potential applications in preparing varieties of nanostructured materials. However, fabrication of nanomaterials with tunable structures and desirable properties is still challenging because of the instability and nonuniform distribution of cavitation effect in liquid phase. In this study, a novel aeration tuned ultrasonic synthesis approach is proposed for optimizing the cavitation effect in both time and space scales and fabricating SiO2@PNIPAm NPs. By alternation of ultrasonication and N2 aeration, more and more gas bubbles are formed in the reaction liquid, and the collapse of those bubbles is further enhanced by the reactants of solid SiO2 and intermediate functionalized SiO2 NPs. As a result, SiO2@PNIPAm NPs with various grafting ratios are successfully synthesized simply by changing the number of ultrasonic synthesis cycle. The SiO2@PNIPAm NPs are subsequently used as stabilizer to form Pickering emulsions with different temperature response. This work provides a potential facile sonochemical synthesis method with high efficiency in obtaining inorganic/organic NPs of well determined structures.
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Affiliation(s)
- F Chen
- Key Laboratory of Materials Physics and Chemistry under Extraordinary Conditions, Ministry of Education, Northwestern Polytechnical University, Xi'an 710072, PR China.
| | - C Dong
- Key Laboratory of Materials Physics and Chemistry under Extraordinary Conditions, Ministry of Education, Northwestern Polytechnical University, Xi'an 710072, PR China
| | - C Chen
- Key Laboratory of Materials Physics and Chemistry under Extraordinary Conditions, Ministry of Education, Northwestern Polytechnical University, Xi'an 710072, PR China
| | - W D Yin
- Key Laboratory of Materials Physics and Chemistry under Extraordinary Conditions, Ministry of Education, Northwestern Polytechnical University, Xi'an 710072, PR China
| | - W Zhai
- Key Laboratory of Materials Physics and Chemistry under Extraordinary Conditions, Ministry of Education, Northwestern Polytechnical University, Xi'an 710072, PR China.
| | - X Y Ma
- Key Laboratory of Materials Physics and Chemistry under Extraordinary Conditions, Ministry of Education, Northwestern Polytechnical University, Xi'an 710072, PR China
| | - B Wei
- Key Laboratory of Materials Physics and Chemistry under Extraordinary Conditions, Ministry of Education, Northwestern Polytechnical University, Xi'an 710072, PR China
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Kirkland R, Kole A, McDonald A, Boggs H, Spencer S, Dobelbower M, Willey C, Batra H, Wei B, Thachuthara-George J, Stahl J. Clinical Predictors of Intubation and In-Hospital Death in Lung Cancer Patients Admitted for Acute Radiation Pneumonitis: A Healthcare Cost and Utilization Project (HCUP) Analysis. Int J Radiat Oncol Biol Phys 2019. [DOI: 10.1016/j.ijrobp.2019.06.1388] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Liu JM, Wu WH, Zhai W, Wei B. Ultrasonic modulation of phase separation and corrosion resistance for ternary Cu-Sn-Bi immiscible alloy. Ultrason Sonochem 2019; 54:281-289. [PMID: 30712857 DOI: 10.1016/j.ultsonch.2019.01.029] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/28/2018] [Revised: 01/14/2019] [Accepted: 01/22/2019] [Indexed: 06/09/2023]
Abstract
The effect of power ultrasound on the liquid phase separation of ternary Cu-32%Sn-20%Bi immiscible alloy is experimentally investigated, which shows that as compared with the layered structure formed under static condition, the macrosegregation resulted from liquid phase separation is remarkably reduced with the increase of ultrasonic amplitude. A homogenous microstructure characterized by refined (Bi) particles dispersing uniformly on the (Cu3Sn) matrix is obtained when the ultrasonic amplitude reaches the highest value of 24 μm. This is mainly ascribed to the ultrasonically induced cavitation and acoustic streaming, which promotes the nucleation, the fragmentation, and the dispersion of (Bi) droplets. The finally solidified immiscible alloy exhibits obvious improvements in electrochemical corrosion resistance, microhardness and wear-resisting if compared with those in static solidification. These results prove that applying power ultrasound is an effective way to modulate the liquid phase separation and enhance the applied performance for immiscible alloys.
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Affiliation(s)
- J M Liu
- Department of Applied Physics, Northwestern Polytechnical University, Xi'an 710072, PR China
| | - W H Wu
- Department of Applied Physics, Northwestern Polytechnical University, Xi'an 710072, PR China
| | - W Zhai
- Department of Applied Physics, Northwestern Polytechnical University, Xi'an 710072, PR China.
| | - B Wei
- Department of Applied Physics, Northwestern Polytechnical University, Xi'an 710072, PR China
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Zhang Y, Wang B, Wei L, Jiang T, Yu W, Hutton R, Zou Y, Chen L, Wei B. Proton migration in hydrocarbons induced by slow highly charged ion impact. J Chem Phys 2019; 150:204303. [PMID: 31153159 DOI: 10.1063/1.5088690] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Different from most of the previous studies using light or photons, we use highly charged ions as projectiles to activate proton migration in the smallest saturated and unsaturated hydrocarbon molecules, i.e., CH4 and C2H2. The H3 + formation channel (H3 + + CH+) and isomerization channel (C+ + CH2 +), serving as indicators of proton migration, are observed in the fragmentation of CH4 and C2H2 dications. Corresponding kinematical information, i.e., kinetic energy release, is for the first time obtained in the collisions with highly charged ions. In particular, for the C+ + CH2 + channel, a new pathway is identified, which is tentatively attributed to the isomerization on high-lying states of acetylene dication. The kinetic energy release spectra for other two-body breakup channels are also determined and precursor dication states could thus be identified.
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Affiliation(s)
- Y Zhang
- Department of Nuclear Science and Technology, Institute of Modern Physics, Fudan University, Shanghai 200433, China
| | - B Wang
- Department of Nuclear Science and Technology, Institute of Modern Physics, Fudan University, Shanghai 200433, China
| | - L Wei
- School of Nuclear Science and Technology, Lanzhou University, Lanzhou 730000, China
| | - T Jiang
- Department of Nuclear Science and Technology, Institute of Modern Physics, Fudan University, Shanghai 200433, China
| | - W Yu
- Department of Nuclear Science and Technology, Institute of Modern Physics, Fudan University, Shanghai 200433, China
| | - R Hutton
- Department of Nuclear Science and Technology, Institute of Modern Physics, Fudan University, Shanghai 200433, China
| | - Y Zou
- Department of Nuclear Science and Technology, Institute of Modern Physics, Fudan University, Shanghai 200433, China
| | - L Chen
- Department of Nuclear Science and Technology, Institute of Modern Physics, Fudan University, Shanghai 200433, China
| | - B Wei
- Department of Nuclear Science and Technology, Institute of Modern Physics, Fudan University, Shanghai 200433, China
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Yong D, Rahim AA, Wei B, Wu Y, Thwin C, Chen S, Naing MW. Label-free spectroscopy for cell monitoring. Cytotherapy 2019. [DOI: 10.1016/j.jcyt.2019.04.031] [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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39
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Fang J, Huang J, Zheng Z, Wei B, Liu J, Huang Y, Chen T, Wei H. How to find Denonvilliers' fascia during laparoscopic TME. Tech Coloproctol 2019; 23:391-392. [PMID: 31020449 DOI: 10.1007/s10151-019-01964-5] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/12/2019] [Accepted: 03/08/2019] [Indexed: 11/26/2022]
Affiliation(s)
- J Fang
- Department of Gastrointestinal Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Tianhe Road 600, Guangzhou, 510630, China
| | - J Huang
- Department of Gastrointestinal Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Tianhe Road 600, Guangzhou, 510630, China
| | - Z Zheng
- Department of Gastrointestinal Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Tianhe Road 600, Guangzhou, 510630, China
| | - B Wei
- Department of Gastrointestinal Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Tianhe Road 600, Guangzhou, 510630, China
| | - J Liu
- Department of Gastrointestinal Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Tianhe Road 600, Guangzhou, 510630, China
| | - Y Huang
- Department of Gastrointestinal Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Tianhe Road 600, Guangzhou, 510630, China
| | - T Chen
- Department of Gastrointestinal Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Tianhe Road 600, Guangzhou, 510630, China
| | - H Wei
- Department of Gastrointestinal Surgery, The Third Affiliated Hospital of Sun Yat-sen University, Tianhe Road 600, Guangzhou, 510630, China.
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Xu T, Díaz Álvarez A, Wei W, Eschimese D, Brillard C, Eliet S, Lancry O, Galopin E, Vaurette F, Berthe M, Desremes D, Wei B, Xu J, Lampin JF, Pallecchi E, Happy H, Vignaud D, Grandidier B. Correction: Transport mechanisms in a puckered graphene-on-lattice. Nanoscale 2019; 11:7003. [PMID: 30912785 DOI: 10.1039/c9nr90067e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Correction for 'Transport mechanisms in a puckered graphene-on-lattice' by T. Xu et al., Nanoscale, 2018, 10, 7519-7525.
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Affiliation(s)
- T Xu
- Key Laboratory of Advanced Display and System Application, Shanghai University, 149 Yanchang Road, Shanghai 200072, People's Republic of China
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41
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Yu W, Gao CZ, Jiang T, Zou Y, Wang JG, Wu Y, Wei B. A theoretical study of Ar 8+-acetylene collisions at 1.2 MeV: Ionization and dissociation dynamics. J Chem Phys 2019; 150:124304. [PMID: 30927893 DOI: 10.1063/1.5082729] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022] Open
Abstract
We theoretically study Ar8+-induced dissociation of C2H2 molecule at 1.2 MeV using the time-dependent density-functional theory non-adiabatically coupled to nuclear dynamics. We find that molecular dissociation depends strongly on the ionization at the initial stage and the collision configuration. A detailed analysis shows a correspondence between the charge state of [C2H2]q+ and the final fragments. A remarkable impact parameter effect provides deep insights of bond breakup and electronic transport. We analyze two typical sequential dissociation channels reported in experiments by tracking structural and electronic dynamics in real time. Our results provide better understanding of experiments. Moreover, the comparison between various exchange-correlation functionals reveals that electrons' correlation and self-interaction do not significantly impact the initial ionization and fragment distribution in the present study.
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Affiliation(s)
- W Yu
- Department of Nuclear Science and Technology, Institute of Modern Physics, Fudan University, Shanghai 200433, China
| | - C-Z Gao
- Institute of Applied Physics and Computational Mathematics, Beijing 100088, China
| | - T Jiang
- Department of Nuclear Science and Technology, Institute of Modern Physics, Fudan University, Shanghai 200433, China
| | - Y Zou
- Department of Nuclear Science and Technology, Institute of Modern Physics, Fudan University, Shanghai 200433, China
| | - J-G Wang
- Institute of Applied Physics and Computational Mathematics, Beijing 100088, China
| | - Y Wu
- Institute of Applied Physics and Computational Mathematics, Beijing 100088, China
| | - B Wei
- Department of Nuclear Science and Technology, Institute of Modern Physics, Fudan University, Shanghai 200433, China
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42
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Wei B, Liu F, Zhang J, Liu Y, Du J, Liu S, Zhang N, Bachert C, Meng J. Multivariate analysis of inflammatory endotypes in recurrent nasal polyposis in a Chinese population. Rhinology 2018; 56:216-226. [PMID: 29785413 DOI: 10.4193/rhin17.240] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
BACKGROUND Chronic rhinosinusitis with nasal polyps (CRSwNP) remains a challenging clinical problem due to its propensity for recurrence. However, data on the frequency of CRSwNP recurrence after surgery in China are rare. METHODS 78 CRSwNP patients undergoing functional endoscopic sinus surgery were followed-up for 8 years and classified into recurrent and non-recurrent groups. A cluster analysis of the CRSwNP based on inflammatory endotypes was performed, and the endotypes were secondarily matched with clinical phenotypes. RESULTS The recurrence rate of CRSwNP in Southwest China was 21.8% over 8 years post-surgery. The CRSwNP was classified into 4 clusters: cluster 1 (higher expression of IL-5, IgE, and ECP and high positivity rate for SE-IgE); cluster 2 (higher concentrations of IL-6, IL-8 and MPO); cluster 3 (higher concentrations of TNF-alpha; and IFN-gamma); and cluster 4 (higher expression of IL-17). Cluster 1 (type-2 inflammation) exhibited the highest recurrence rate, co-morbid asthma and atopy. Notably, the ECP/MPO ratio increased significantly in patients with non-type-2 recurrent CRSwNP 8 years after the first surgery. CONCLUSION Different inflammatory endotypes of CRSwNP exhibited clearly different prognoses. The type-2 subgroup had high recurrence and co-morbid asthma rates comparable to the rates reported in Western countries.
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Affiliation(s)
- B Wei
- ENT Department, West China Hospital, Sichuan University, Chengdu, China
| | - F Liu
- ENT Department, West China Hospital, Sichuan University, Chengdu, China
| | - J Zhang
- The Upper Airway Research Laboratory, West China Hospital, Sichuan University, Chengdu, China
| | - Y Liu
- ENT Department, West China Hospital, Sichuan University, Chengdu, China
| | - J Du
- ENT Department, West China Hospital, Sichuan University, Chengdu, China
| | - S Liu
- ENT Department, West China Hospital, Sichuan University, Chengdu, China
| | - N Zhang
- Upper Airways Research Laboratory and Department of Oto-Rhino-Laryngology, Ghent University and Ghent University Hospital, Belgium
| | - C Bachert
- Upper Airways Research Laboratory and Department of Oto-Rhino-Laryngology, Ghent University and Ghent University Hospital, Belgium
| | - J Meng
- ENT Department, West China Hospital, Sichuan University, Chengdu, China
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Wei B, Li Z, Han Q, Xing X, Hao Y, Zhou J, Zhang Y, Cai S, Gu Y. HER2 alterations is associated with higher tumor mutation burden in gastric cancer. Ann Oncol 2018. [DOI: 10.1093/annonc/mdy282.047] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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44
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Segelov E, Bergsland E, Card C, Hope T, Kunz P, Laidley D, Lawrence B, Leyden S, Michael M, Modahl L, Myrehaug S, Padda S, Pommier R, Ramirez R, Soulen M, Strosberg J, Thawer A, Wei B, Singh S. The commonwealth neuroendocrine tumour collaboration (CommNETs) and North American neuroendocrine tumor society (NANETS) endorsement and update of European neuroendocrine tumor society (ENETS) best practice consensus for lung neuroendocrine tumors (LNET). Ann Oncol 2018. [DOI: 10.1093/annonc/mdy293.015] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [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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45
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Hu H, Fang Y, Wei B, Cui K, Cen Z, Luo C, He P. P3867Transhepatic route for cardiac implantable electronic devices(CIED) implantation in patients with inaccessible superior vena cava route: 5 years experiences. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy563.p3867] [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: 02/05/2023] Open
Affiliation(s)
- H Hu
- West China Hospital Sichuan University, cardiovascular department, Chengdu, China People's Republic of
| | - Y Fang
- West China Hospital Sichuan University, cardiovascular department, Chengdu, China People's Republic of
| | - B Wei
- West China Hospital Sichuan University, Gastroenterology department, Chengdu, China People's Republic of
| | - K Cui
- West China Hospital Sichuan University, cardiovascular department, Chengdu, China People's Republic of
| | - Z Cen
- West China Hospital Sichuan University, cardiovascular department, Chengdu, China People's Republic of
| | - C Luo
- Mianyang Central Hospital, cardiovascular department, Mianyang, China People's Republic of
| | - P He
- West China Hospital Sichuan University, anesthesiology department, Chengdu, China People's Republic of
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Elmi OI, Cristini-Robbe O, Chen MY, Wei B, Bernard R, Yarekha D, Okada E, Ouendi S, Portier X, Gourbilleau F, Xu T, Stiévenard D. Local Schottky contacts of embedded Ag nanoparticles in Al 2O 3/SiN x :H stacks on Si: a design to enhance field effect passivation of Si junctions. Nanotechnology 2018; 29:285403. [PMID: 29697055 DOI: 10.1088/1361-6528/aac032] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
This paper describes an original design leading to the field effect passivation of Si n+-p junctions. Ordered Ag nanoparticle (Ag-NP) arrays with optimal size and coverage fabricated by means of nanosphere lithography and thermal evaporation, were embedded in ultrathin-Al2O3/SiN x :H stacks on the top of implanted Si n+-p junctions, to achieve effective surface passivation. One way to characterize surface passivation is to use photocurrent, sensitive to recombination centers. We evidenced an improvement of photocurrent by a factor of 5 with the presence of Ag NPs. Finite-difference time-domain (FDTD) simulations combining with semi-quantitative calculations demonstrated that such gain was mainly due to the enhanced field effect passivation through the depleted region associated with the Ag-NPs/Si Schottky contacts.
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Affiliation(s)
- O Ibrahim Elmi
- Université de Djibouti, Faculté des Sciences BP 1904, Djibouti
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Yang S, Hu L, Wang L, Wei B. Molecular dynamics simulation of liquid structure for undercooled Zr-Nb alloys assisted with electrostatic levitation experiments. Chem Phys Lett 2018. [DOI: 10.1016/j.cplett.2018.04.050] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
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48
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Xu T, Díaz Álvarez A, Wei W, Eschimese D, Eliet S, Lancry O, Galopin E, Vaurette F, Berthe M, Desremes D, Wei B, Xu J, Lampin JF, Pallecchi E, Happy H, Vignaud D, Grandidier B. Transport mechanisms in a puckered graphene-on-lattice. Nanoscale 2018; 10:7519-7525. [PMID: 29637980 DOI: 10.1039/c8nr00678d] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Understanding the fundamental properties of graphene when its topography is patterned by the use of a compliant substrate is essential to improve the performances of graphene sensors. Here we suspend a graphene monolayer on SiO2 nanopillar arrays to form a puckered graphene-on-lattice and investigate the strain and electrical transport at the nanoscale. Despite a nonuniform strain in the graphene-on-lattice, the resistivity is governed by thermally activated transport and not the strain. We show that the high thermal activation energy results from a low charge carrier density and a periodic change of the chemical potential induced by the interaction of the graphene monolayer with the nanopillars, making the use of graphene-on-lattice attractive to further increase the electrical response of graphene sensors.
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Affiliation(s)
- T Xu
- Key Laboratory of Advanced Display and System Application, Shanghai University, 149 Yanchang Road, Shanghai 200072, People's Republic of China
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Ji F, Wei B, Yeo YH, Ogawa E, Zou B, Stave CD, Li Z, Dang S, Furusyo N, Cheung RC, Nguyen MH. Systematic review with meta-analysis: effectiveness and tolerability of interferon-free direct-acting antiviral regimens for chronic hepatitis C genotype 1 in routine clinical practice in Asia. Aliment Pharmacol Ther 2018; 47:550-562. [PMID: 29327780 DOI: 10.1111/apt.14507] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [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] [Received: 11/04/2017] [Revised: 11/22/2017] [Accepted: 12/17/2017] [Indexed: 02/06/2023]
Abstract
BACKGROUND Direct-acting antiviral (DAA) regimens have shown high efficacy and tolerability for patients with HCV genotype 1/1b (GT1/1b) in clinical trials. However, robust real-world evidence of interferon (IFN)-free DAA treatment for HCV GT1-infected patients in Asia is still lacking. AIM To systematically review and meta-analyse the effectiveness and tolerability of IFN-free DAA therapy for HCV GT1 infection in Asia. METHODS We included studies that enrolled adult patients with HCV GT1 infection in routine clinical practice in Asia, using IFN-free DAA regimens, and reported sustained virological response (SVR) after 12/24 weeks end-of-treatment by 31 May 2017. The pooled SVR rates were computed with a random-effects model. Subgroup analysis and meta-regression as previously registered in PROSPERO were performed to determine how pre-planned variables might have affected the pooled estimates. RESULTS We included 41 studies from eight countries and regions, comprising of 8574 individuals. The pooled SVR rates for GT1 were 89.9% (95% CI 88.6-91.1, I2 = 55.1%) with daclatasvir/asunaprevir (DCV/ASV) and 98.1% (95% CI 97.0-99.0, I2 = 41.0%) with ledipasvir/sofosbuvir ± ribavirin (LDV/SOF ± RBV). Baseline cirrhosis but not prior treatment history and age, attenuated the effectiveness of both regimens. Baseline resistance associated substitutions (RASs) severely attenuated SVR of DCV/ASV (65.4% vs 94.3%, P < 0.001) and only minimally with LDV/SOF ± RBV (94.5% vs 99.2%, P = 0.003). Patients with renal dysfunction treated with DCV/ASV showed a higher SVR rate (93.9% vs 89.8%, P = 0.046). Patients with hepatocellular carcinoma (HCC) LDV/SOF ± RBV achieved a lower SVR than those without HCC (94.1% vs 98.7%, P = 0.001). CONCLUSION All oral DAA treatment of HCV GT1 resulted in high cure rates in Asian patients in routine clinical practice setting including elderly patients and those with end-stage renal disease.
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Affiliation(s)
- F Ji
- Division of Gastroenterology and Hepatology, Stanford University Medical Center, Palo Alto, CA, USA.,Department of Infectious Diseases, The Second Affiliated Hospital of Xi' an Jiaotong University, Xi'an, China.,Shaanxi Provincial Clinical Research Center for Hepatic & Splenic Diseases, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - B Wei
- Division of Gastroenterology and Hepatology, Stanford University Medical Center, Palo Alto, CA, USA
| | - Y H Yeo
- Division of Gastroenterology and Hepatology, Stanford University Medical Center, Palo Alto, CA, USA
| | - E Ogawa
- Division of Gastroenterology and Hepatology, Stanford University Medical Center, Palo Alto, CA, USA.,Department of General Internal Medicine, Kyushu University Hospital, Fukuoka, Japan
| | - B Zou
- Division of Gastroenterology and Hepatology, Stanford University Medical Center, Palo Alto, CA, USA
| | - C D Stave
- Department of Lane Medical Library, Stanford University Medical Center, Palo Alto, CA, USA
| | - Z Li
- Shaanxi Provincial Clinical Research Center for Hepatic & Splenic Diseases, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China.,National & Local Joint Engineering Research Center of Biodiagnosis and Biotherapy, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - S Dang
- Department of Infectious Diseases, The Second Affiliated Hospital of Xi' an Jiaotong University, Xi'an, China
| | - N Furusyo
- Department of General Internal Medicine, Kyushu University Hospital, Fukuoka, Japan
| | - R C Cheung
- Division of Gastroenterology and Hepatology, Stanford University Medical Center, Palo Alto, CA, USA.,Division of Gastroenterology and Hepatology, Veterans Affairs Palo Alto Health Care System, Palo Alto, CA, USA
| | - M H Nguyen
- Division of Gastroenterology and Hepatology, Stanford University Medical Center, Palo Alto, CA, USA
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Zhou XJ, Dong Q, Zhu CZ, Chen X, Wei B, Duan YH, Zhao J, Hao XW, Zhang H, Nie P, Hu B, Xu WJ, Shen RW, Chen ZH, Dong KR, Bai YZ, Shu Q, Luo WJ, Gao F, Xia N, Yu QY. [The role and significance of digital reconstruction technique in liver segments based on portal vein structure]. Zhonghua Wai Ke Za Zhi 2018; 56:61-67. [PMID: 29325356 DOI: 10.3760/cma.j.issn.0529-5815.2018.01.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To study the segment of liver according to the large amount of three-dimensional(3D) reconstructive images of normal human livers and the vascular system, and to recognize the basic functional liver unit based on the anatomic features of the intrahepatic portal veins. Methods: The enhanced CT primitive DICOM files of 1 260 normal human livers from different age groups who treated from October 2013 to February 2017 provided by 16 hospitals were analyzed using the computer-aided surgery system.The 3D liver and liver vascular system were reconstructed, and the digital liver 3D model was established.The vascular morphology, anatomical features, and anatomical distributions of intrahepatic portal veins were statistically analyzed. Results: The digital liver model obtained from the 3D reconstruction of CAS displayed clear intrahepatic portal vein vessels of level four.Perform a digital liver segments study based on the analysis of level four vascular distribution areas.As the less anatomical variation of left hepatic portal vein, the liver was classified into four types of liver segmentation mainly based on right hepatic portal vein.Type A was similar to Couinaud or Cho's segmentation, containing 8 segments(537 cases, 42.62%). Type B contained 9 segments as there are three ramifications of right-anterior portal vein(464 cases, 36.82%). The main difference for Type C was the variation of right-posterior portal vein which was sector shape(102 cases, 8.10%). Type D contained the cases with special portal vein variations, which needs three-dimensional simulation to design individualized liver resection plan(157 cases, 12.46%). These results showed that there was no significant difference in liver segmental typing between genders(χ(2)=2.179, P=0.536) and did not reveal any significant difference in liver segmental typing among the different age groups(χ(2)=0.357, P=0.949). Conclusions: The 3D digital liver model can demonstrate the true 3D anatomical structures, and its spatial vascular variations.The observation of anatomic features, distribution areas of intrahepatic portal veins and individualized liver segmentation achieved via digital medical 3D visualization technology is of great value for understand the complexity of liver anatomy and to guide the precise hepatectomy.
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Affiliation(s)
- X J Zhou
- Department of Pediatric Surgery, the Affiliated Hospital of Qingdao University, Qingdao 266003, China
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