1
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Pribut HJ, Kang N, Roesch MR. Prior cocaine self-administration does not impair the ability to delay gratification in rats during diminishing returns. Behav Pharmacol 2024; 35:147-155. [PMID: 38651979 DOI: 10.1097/fbp.0000000000000771] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/25/2024]
Abstract
Previous exposure to drugs of abuse produces impairments in studies of reversal learning, delay discounting and response inhibition tasks. While these studies contribute to the understanding of normal decision-making and how it is impaired by drugs of abuse, they do not fully capture how decision-making impacts the ability to delay gratification for greater long-term benefit. To address this issue, we used a diminishing returns task to study decision-making in rats that had previously self-administered cocaine. This task was designed to test the ability of the rat to choose to delay gratification in the short-term to obtain more reward over the course of the entire behavioral session. Rats were presented with two choices. One choice had a fixed amount of time delay needed to obtain reward [i.e. fixed delay (FD)], while the other choice had a progressive delay (PD) that started at 0 s and progressively increased by 1 s each time the PD option was selected. During the 'reset' variation of the task, rats could choose the FD option to reset the time delay associated with the PD option. Consistent with previous results, we found that prior cocaine exposure reduced rats' overall preference for the PD option in post-task reversal testing during 'no-reset' sessions, suggesting that cocaine exposure made rats more sensitive to the increasing delay of the PD option. Surprisingly, however, we found that rats that had self-administered cocaine 1-month prior, adapted behavior during 'reset' sessions by delaying gratification to obtain more reward in the long run similar to control rats.
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Affiliation(s)
- H J Pribut
- Department of Psychology
- Program in Neuroscience and Cognitive Science, University of Maryland, College Park, Maryland, USA
| | | | - Matthew R Roesch
- Department of Psychology
- Program in Neuroscience and Cognitive Science, University of Maryland, College Park, Maryland, USA
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2
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Keen MP, Al-Ajam Y, Kang N. Targeted muscle reinnervation surgery in a patient with neurofibromatosis type 1. JPRAS Open 2024; 40:259-261. [PMID: 38689635 PMCID: PMC11059442 DOI: 10.1016/j.jpra.2024.04.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2024] [Accepted: 04/04/2024] [Indexed: 05/02/2024] Open
Affiliation(s)
- Miss P. Keen
- Imperial College School of Medicine, London, SW7 2AZ, UK
| | | | - N. Kang
- Royal Free Hospital, London NW3 2QG, UK
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Liu Z, Fan Z, Wang L, Zhang S, Xu W, Zhao S, Fang S, Liu M, Kofi SM, Zhang S, Kang N, Ai H, Li R, Feng T, Wei S, Zhao H. Corrigendum: Expression profiling of ALOG family genes during inflorescence development and abiotic stress responses in rice ( Oryza sativa L.). Front Genet 2024; 15:1419283. [PMID: 38764599 PMCID: PMC11102044 DOI: 10.3389/fgene.2024.1419283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/18/2024] [Accepted: 04/19/2024] [Indexed: 05/21/2024] Open
Abstract
[This corrects the article DOI: 10.3389/fgene.2024.1381690.].
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Affiliation(s)
- Zhiyuan Liu
- Center for Crop Biotechnology, College of Agriculture, Anhui Science and Technology University, Fengyang, China
| | - Zhenjiang Fan
- Center for Crop Biotechnology, College of Agriculture, Anhui Science and Technology University, Fengyang, China
| | - Lei Wang
- Center for Crop Biotechnology, College of Agriculture, Anhui Science and Technology University, Fengyang, China
| | - Siyue Zhang
- Center for Crop Biotechnology, College of Agriculture, Anhui Science and Technology University, Fengyang, China
| | - Weichen Xu
- Center for Crop Biotechnology, College of Agriculture, Anhui Science and Technology University, Fengyang, China
| | - Sijie Zhao
- Center for Crop Biotechnology, College of Agriculture, Anhui Science and Technology University, Fengyang, China
| | - Sijia Fang
- Center for Crop Biotechnology, College of Agriculture, Anhui Science and Technology University, Fengyang, China
| | - Mei Liu
- Center for Crop Biotechnology, College of Agriculture, Anhui Science and Technology University, Fengyang, China
| | - Sackitey Mark Kofi
- Center for Crop Biotechnology, College of Agriculture, Anhui Science and Technology University, Fengyang, China
| | - Shuangxi Zhang
- Center for Crop Biotechnology, College of Agriculture, Anhui Science and Technology University, Fengyang, China
| | - Ningning Kang
- Center for Crop Biotechnology, College of Agriculture, Anhui Science and Technology University, Fengyang, China
| | - Hao Ai
- Center for Crop Biotechnology, College of Agriculture, Anhui Science and Technology University, Fengyang, China
| | - Ruining Li
- Center for Crop Biotechnology, College of Agriculture, Anhui Science and Technology University, Fengyang, China
| | - Tingting Feng
- Center for Crop Biotechnology, College of Agriculture, Anhui Science and Technology University, Fengyang, China
| | - Shuya Wei
- College of Bioengineering, Wuhan Polytechnic University, Wuhan, China
| | - Heming Zhao
- Center for Crop Biotechnology, College of Agriculture, Anhui Science and Technology University, Fengyang, China
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Liu Z, Fan Z, Wang L, Zhang S, Xu W, Zhao S, Fang S, Liu M, Kofi SM, Zhang S, Kang N, Ai H, Li R, Feng T, Wei S, Zhao H. Expression profiling of ALOG family genes during inflorescence development and abiotic stress responses in rice ( Oryza sativa L.). Front Genet 2024; 15:1381690. [PMID: 38650857 PMCID: PMC11033443 DOI: 10.3389/fgene.2024.1381690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/04/2024] [Accepted: 03/25/2024] [Indexed: 04/25/2024] Open
Abstract
The ALOG (Arabidopsis LSH1 and Oryza G1) family proteins, namely, DUF640 domain-containing proteins, have been reported to function as transcription factors in various plants. However, the understanding of the response and function of ALOG family genes during reproductive development and under abiotic stress is still largely limited. In this study, we comprehensively analyzed the structural characteristics of ALOG family proteins and their expression profiles during inflorescence development and under abiotic stress in rice. The results showed that OsG1/OsG1L1/2/3/4/5/6/7/8/9 all had four conserved helical structures and an inserted Zinc-Ribbon (ZnR), the other four proteins OsG1L10/11/12/13 lacked complete Helix-1 and Helix-2. In the ALOG gene promoters, there were abundant cis-acting elements, including ABA, MeJA, and drought-responsive elements. Most ALOG genes show a decrease in expression levels within 24 h under ABA and drought treatments, while OsG1L2 expression levels show an upregulated trend under ABA and drought treatments. The expression analysis at different stages of inflorescence development indicated that OsG1L1/2/3/8/11 were mainly expressed in the P1 stage; in the P4 stage, OsG1/OsG1L4/5/9/12 had a higher expression level. These results lay a good foundation for further studying the expression of rice ALOG family genes under abiotic stresses, and provide important experimental support for their functional research.
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Affiliation(s)
- Zhiyuan Liu
- Center for Crop Biotechnology, College of Agriculture, Anhui Science and Technology University, Fengyang, China
| | - Zhenjiang Fan
- Center for Crop Biotechnology, College of Agriculture, Anhui Science and Technology University, Fengyang, China
| | - Lei Wang
- Center for Crop Biotechnology, College of Agriculture, Anhui Science and Technology University, Fengyang, China
| | - Siyue Zhang
- Center for Crop Biotechnology, College of Agriculture, Anhui Science and Technology University, Fengyang, China
| | - Weichen Xu
- Center for Crop Biotechnology, College of Agriculture, Anhui Science and Technology University, Fengyang, China
| | - Sijie Zhao
- Center for Crop Biotechnology, College of Agriculture, Anhui Science and Technology University, Fengyang, China
| | - Sijia Fang
- Center for Crop Biotechnology, College of Agriculture, Anhui Science and Technology University, Fengyang, China
| | - Mei Liu
- Center for Crop Biotechnology, College of Agriculture, Anhui Science and Technology University, Fengyang, China
| | - Sackitey Mark Kofi
- Center for Crop Biotechnology, College of Agriculture, Anhui Science and Technology University, Fengyang, China
| | - Shuangxi Zhang
- Center for Crop Biotechnology, College of Agriculture, Anhui Science and Technology University, Fengyang, China
| | - Ningning Kang
- Center for Crop Biotechnology, College of Agriculture, Anhui Science and Technology University, Fengyang, China
| | - Hao Ai
- Center for Crop Biotechnology, College of Agriculture, Anhui Science and Technology University, Fengyang, China
| | - Ruining Li
- Center for Crop Biotechnology, College of Agriculture, Anhui Science and Technology University, Fengyang, China
| | - Tingting Feng
- Center for Crop Biotechnology, College of Agriculture, Anhui Science and Technology University, Fengyang, China
| | - Shuya Wei
- College of Bioengineering, Wuhan Polytechnic University, Wuhan, China
| | - Heming Zhao
- Center for Crop Biotechnology, College of Agriculture, Anhui Science and Technology University, Fengyang, China
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Yang H, Zhou K, Chen L, Lu X, Kang N. Differential Analysis of Various Moisture Phases on N 2 Displacement of CH 4 in Coal. ACS Omega 2024; 9:15633-15640. [PMID: 38585123 PMCID: PMC10993358 DOI: 10.1021/acsomega.4c00507] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/16/2024] [Revised: 02/28/2024] [Accepted: 03/04/2024] [Indexed: 04/09/2024]
Abstract
The aim of the study was to elucidate the impact of different moisture phases during gas injection on coalbed methane displacement. The coal samples were treated with two methods: water vapor adsorption and liquid water stirring. The differences in the coal samples treated with various moisture phases during gas injection for coalbed methane displacement were investigated by using the isothermal adsorption curves of CH4, N2, and H2O in coal and N2 displacement of CH4 in coal. The results indicate that variations in the gas adsorption capacity of coal are treated with different moisture phases. The gas adsorption capacities and displacement capacities of the coal samples treated with the water vapor adsorption methods are better than those treated with the stirring methods. In the isothermal adsorption experiment, for the coal samples treated with different moisture phases, at a moisture content of 2.75%, the saturated adsorption capacities of CH4/N2 are 0.204/0.189 (cm3/g), and at a moisture content of 5.63%, the saturated adsorption capacities of CH4/N2 are 0.151/0.139 (cm3/g). In addition, in the displacement experiment, for the coal samples treated with different moisture phases, at a moisture content of 2.75%, the difference in the total gas adsorption capacities is 0.62 cm3/g and the difference in the CH4 adsorption capacities is 0.473 cm3/g, and at a moisture content of 5.63%, the difference in the total gas adsorption capacities is 0.3 cm3/g and the difference in CH4 adsorption capacities is 0.22 cm3/g. For the coal samples treated with various moisture phases, the differences in the CH4/N2 adsorption and displacement capacities are greater at a moisture content of 2.75% than at 5.63%. Notably, the moisture phase has only a marginal influence on the CH4 desorption capacity and desorption rate. The study is important to understand the interactions between coal and moisture.
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Affiliation(s)
- Hongmin Yang
- School
of Safety Science and Engineering, Henan
Polytechnic University, Jiaozuo, Henan 454000, China
- State
Collaborative Innovation Center of Coal Work Safety and Clean-efficiency
Utilization, Jiaozuo, Henan 454000, China
- MOE
Engineering Research Center of Coal Mine Disaster Prevention and Emergency
Rescue, Jiaozuo, Henan 454000, China
| | - Kaifan Zhou
- School
of Safety Science and Engineering, Henan
Polytechnic University, Jiaozuo, Henan 454000, China
| | - Liwei Chen
- School
of Safety Science and Engineering, Henan
Polytechnic University, Jiaozuo, Henan 454000, China
| | - Xiaotong Lu
- School
of Safety Science and Engineering, Henan
Polytechnic University, Jiaozuo, Henan 454000, China
| | - Ningning Kang
- School
of Safety Science and Engineering, Henan
Polytechnic University, Jiaozuo, Henan 454000, China
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6
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Lu X, Ma S, Li Y, Pan Y, Kang N. Identification of ITGB4 as a novel tumor promoting gene in lung adenocarcinoma (LUAD). Oncol Rep 2024; 51:30. [PMID: 38131229 PMCID: PMC10777471 DOI: 10.3892/or.2023.8689] [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: 08/09/2023] [Accepted: 12/08/2023] [Indexed: 12/23/2023] Open
Abstract
As the most frequently diagnosed cancer, lung cancer (LC) is the most common cause of cancer‑related death worldwide. In total, ~85% of malignant lung tumors belong to non‑small cell LC, of which ~50% are lung adenocarcinoma (LUAD). Integrin subunit β4 (ITGB4) is upregulated in lung glandular cancer and elevated ITGB4 levels predict an adverse clinical outcome. However, the biological function of ITGB4 in promoting LUAD progression remains unclear. In the present study, the upregulation of ITGB4 in LUAD tissue samples was demonstrated. To understand the biological role of ITGB4, ITGB4 expression was knocked down in A549 and PC9 cells through transfection with specific small interfering RNAs. The results demonstrated that the downregulation of ITGB4 attenuated A549 and PC9 cell proliferation, promoted cell apoptosis and inhibited colony formation, cell migration and cell invasion. To understand the mechanism of ITGB4, high throughput sequencing was performed using ITGB4‑knocked down A549 cells, followed by bioinformatics analysis. It was found that the genes upregulated by ITGB4 were significantly enriched in metabolism and related pathways, and the genes downregulated by ITGB4 were enriched in cell cycle and related pathways. In conclusion, the findings of the present study highlighted the oncogenic function of ITGB4 in LUAD and uncovered potential mechanisms fundamental to the progression of the disease.
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Affiliation(s)
- Xuan Lu
- School of Life Sciences, Hefei Normal University, Hefei, Anhui 230000, P.R. China
| | - Sai Ma
- Department of Central Laboratory, The Affiliated Suzhou Hospital of Nanjing Medical University, Gusu School, Nanjing Medical University, Suzhou, Jiangsu 215000, P.R. China
| | - Ying Li
- School of Life Sciences, Hefei Normal University, Hefei, Anhui 230000, P.R. China
| | - Yunzhi Pan
- Department of Pharmacy, The Affiliated Infectious Diseases Hospital of Soochow University, The Fifth People's Hospital of Suzhou, Suzhou, Jiangsu 215000, P.R. China
| | - Ningning Kang
- Department of Thoracic Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui 230022, P.R. China
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7
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Wang JT, Li L, Niu M, Zhu QL, Zhao ZW, Kotani K, Yamamoto A, Zhang HJ, Li SX, Xu D, Kang N, Li XG, Zhang KP, Sun J, Wu FZ, Zhang HL, Liu DX, Lyu MH, Ji JS, Kawada N, Xu K, Qi XL. [HVPG minimally invasive era: exploration based on forearm venous approach]. Zhonghua Gan Zang Bing Za Zhi 2024; 32:35-39. [PMID: 38320789 DOI: 10.3760/cma.j.cn501113-20231220-00289] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 02/15/2024]
Abstract
Objective: The transjugular or transfemoral approach is used as a common method for hepatic venous pressure gradient (HVPG) measurement in current practice. This study aims to confirm the safety and effectiveness of measuring HVPG via the forearm venous approach. Methods: Prospective recruitment was conducted for patients with cirrhosis who underwent HVPG measurement via the forearm venous approach at six hospitals in China and Japan from September 2020 to December 2020. Patients' clinical baseline information and HVPG measurement data were collected. The right median cubital vein or basilic vein approach for all enrolled patients was selected. The HVPG standard process was used to measure pressure. Research data were analyzed using SPSS 22.0 statistical software. Quantitative data were used to represent medians (interquartile ranges), while qualitative data were used to represent frequency and rates. The correlation between two sets of data was analyzed using Pearson correlation analysis. Results: A total of 43 cases were enrolled in this study. Of these, 41 (95.3%) successfully underwent HVPG measurement via the forearm venous approach. None of the patients had any serious complications. The median operation time for HVPG detection via forearm vein was 18.0 minutes (12.3~38.8 minutes). This study confirmed that HVPG was positively closely related to Child-Pugh score (r = 0.47, P = 0.002), albumin-bilirubin score (r = 0.37, P = 0.001), Lok index (r = 0.36, P = 0.02), liver stiffness (r = 0.58, P = 0.01), and spleen stiffness (r = 0.77, P = 0.01), while negatively correlated with albumin (r = -0.42, P = 0.006). Conclusion: The results of this multi-centre retrospective study suggest that HVPG measurement via the forearm venous approach is safe and feasible.
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Affiliation(s)
- J T Wang
- Hebei Province Key Laboratory of Hepatocirrhosis and Portal Hypertension, Xingtai People's Hospital Affiliated to Hebei Medical University, Xingtai 054000, China
| | - L Li
- Interventional Department, Lanzhou University First Hospital, Lanzhou 730000, China
| | - M Niu
- Interventional Department, the First Affiliated Hospital of China Medical University, Shenyang 110000, China
| | - Q L Zhu
- Department of Gastroenterology, Affiliated Hospital of Southwest Medical University, Lanzhou 646000, China
| | - Z W Zhao
- Interventional Diagnosis and Treatment Center, Lishui Central Hospital,Lishui 323000, China
| | - K Kotani
- Department of Hepatology, Osaka Municipal University Hospital, Osaka City, Japan
| | - A Yamamoto
- Department of Interventional Radiology, Faculty of Medicine, Osaka City University, Osaka City, Japan
| | - H J Zhang
- Interventional Department, Lanzhou University First Hospital, Lanzhou 730000, China
| | - S X Li
- Interventional Department, Lanzhou University First Hospital, Lanzhou 730000, China
| | - D Xu
- Interventional Department, Lanzhou University First Hospital, Lanzhou 730000, China
| | - N Kang
- Interventional Department, Lanzhou University First Hospital, Lanzhou 730000, China
| | - X G Li
- Interventional Department, Lanzhou University First Hospital, Lanzhou 730000, China
| | - K P Zhang
- Hebei Province Key Laboratory of Hepatocirrhosis and Portal Hypertension, Xingtai People's Hospital Affiliated to Hebei Medical University, Xingtai 054000, China
| | - J Sun
- Interventional Department, the First Affiliated Hospital of China Medical University, Shenyang 110000, China
| | - F Z Wu
- Interventional Diagnosis and Treatment Center, Lishui Central Hospital,Lishui 323000, China
| | - H L Zhang
- Interventional Diagnosis and Treatment Center, Lishui Central Hospital,Lishui 323000, China
| | - D X Liu
- Hebei Province Key Laboratory of Hepatocirrhosis and Portal Hypertension, Xingtai People's Hospital Affiliated to Hebei Medical University, Xingtai 054000, China
| | - M H Lyu
- Department of Gastroenterology, Affiliated Hospital of Southwest Medical University, Lanzhou 646000, China
| | - J S Ji
- Interventional Diagnosis and Treatment Center, Lishui Central Hospital,Lishui 323000, China
| | - N Kawada
- Department of Hepatology, Osaka Municipal University Hospital, Osaka City, Japan
| | - K Xu
- Interventional Department, the First Affiliated Hospital of China Medical University, Shenyang 110000, China
| | - X L Qi
- Portal Hypertension Centers, Southeast University Affiliated Zhongda Hospital, Nanjing 210009,China
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Huang YQ, Kang N. Electron-hole asymmetric magnetotransport of graphene-colloidal quantum dot device. J Colloid Interface Sci 2024; 653:749-755. [PMID: 37748402 DOI: 10.1016/j.jcis.2023.09.078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/08/2023] [Revised: 07/29/2023] [Accepted: 09/11/2023] [Indexed: 09/27/2023]
Abstract
Interfacing graphene with other low-dimensional material has gained attentions recently due to its potential to stimulate new physics and device innovations for optoelectronic and electronic applications. Here, we exploit a solution-processed approach to introduce colloidal quantum dot (CQD) to the bilayer graphene device. The magnetotransport properties of the graphene device is drastically altered due to the presence of the CQD potential, leading to the observation of AB-like oscillation in the quantum Hall regime and screening of the intervalley scattering. The anomalous magnetotransport behavior is attributed to the coulombic scattering introduced by the CQDs and is shown to be highly asymmetric depending on the polarity of the transport carriers. These results prove the potential of such flexible method for engineering microscopic scattering process and performance of the graphene device that may lead to intriguing device application in such hybrid system.
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Affiliation(s)
- Y Q Huang
- Key Laboratory for the Physics and Chemistry of Nanodevices and Center for Carbon-based Electronics, School of Electronics, Peking University, Beijing 100871, China; Department of Physics, Chemistry and Biology, Linköping University, S-581 83 Linköping, Sweden
| | - N Kang
- Key Laboratory for the Physics and Chemistry of Nanodevices and Center for Carbon-based Electronics, School of Electronics, Peking University, Beijing 100871, China.
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Kang N, Zheng H, Ge W, Hu J, Liu W, Zhang R. Uniportal thoracoscopic bullectomy with improved parietal pleurectomy for primary spontaneous pneumothorax. Clin Respir J 2023; 17:1341-1348. [PMID: 38043134 PMCID: PMC10730464 DOI: 10.1111/crj.13722] [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: 09/01/2023] [Revised: 10/25/2023] [Accepted: 11/08/2023] [Indexed: 12/05/2023]
Abstract
INTRODUCTION Parietal pleurectomy with bullectomy has been established as an effective method for preventing the recurrence of primary spontaneous pneumothorax (PSP). Our center introduced enhanced technical measures in uniportal thoracoscopic parietal pleurectomy with bullectomy for patients with PSP, aiming to document our initial experience and assess the procedure's effectiveness in preventing the recurrence of PSP. METHODS We analyzed the clinical data of 86 patients with PSP who underwent the improved uniportal thoracoscopic parietal pleurectomy with bullectomy between July 2019 and August 2022. During the procedure, the parietal pleura above the second intercostal space was stripped but not removed. Instead, it was retained in the thoracic cavity using a piece of pedunculated pleura. Subsequently, the stumps of the lung were covered by the preserved parietal pleura. RESULTS The results of the study showed that the mean operative time was 59.87 ± 16.93 min, and the postoperative drainage duration averaged 3.94 ± 2.17 days. The mean intraoperative blood loss was 24.33 ± 48.91 ml, and the mean postoperative drainage volume was 289.00 ± 170.03 ml. Prolonged air leakage for more than 5 days was observed in five patients (5.81%), but no other postoperative complications were recorded. During the follow-up, one patient (1.16%) experienced a recurrence of pneumothorax. CONCLUSIONS The perioperative results of bullectomy with the improved pleurectomy technique are deemed satisfactory. The various technical steps attempted at our center are found to be feasible and safe, and they may contribute to reducing the rates of recurrence in PSP.
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Affiliation(s)
- Ningning Kang
- Department of Thoracic SurgeryFirst Affiliated Hospital of Anhui Medical UniversityHefeiChina
| | - Hao Zheng
- Department of Thoracic SurgeryFirst Affiliated Hospital of Anhui Medical UniversityHefeiChina
| | - Wei Ge
- Department of Thoracic SurgeryFirst Affiliated Hospital of Anhui Medical UniversityHefeiChina
| | - Jin‐Xiu Hu
- Department of Thoracic SurgeryFirst Affiliated Hospital of Anhui Medical UniversityHefeiChina
| | - Wen Liu
- Department of Thoracic SurgeryFirst Affiliated Hospital of Anhui Medical UniversityHefeiChina
| | - Ren‐Quan Zhang
- Department of Thoracic SurgeryFirst Affiliated Hospital of Anhui Medical UniversityHefeiChina
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Ma C, Zhang J, Xiao M, Kang N, Chen YH, Dai XC. [Value of contrast-enhanced ultrasonography in detection of endoleak after endovascular repair of infrarenal abdominal aortic aneurysm]. Zhonghua Yi Xue Za Zhi 2023; 103:2106-2111. [PMID: 37455129 DOI: 10.3760/cma.j.cn112137-20230214-00202] [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: 07/18/2023]
Abstract
Objective: To investigate the value of contrast-enhanced ultrasound in detecting endoleak after endovascular repair of infrarenal abdominal aortic aneurysm (EVAR). Methods: The postoperative follow-up data of 102 patients with infrarenal abdominal aortic aneurysm treated with EVAR in Tianjin Medical University General Hospital from August 2015 to December 2021 were retrospectively analyzed. There were 79 males and 23 females, aged 50-91 (69.6±7.6) years old. Using CT angiography (CTA) as the gold standard for diagnosing endoleaks, the effectiveness of contrast-enhanced ultrasound and CDUS in detecting endoleaks was evaluated by paired design chi-square test, and the Kappa value was calculated for consistency test. Patients were divided into groups according to body mass index (BMI), and the number of false-negative endoleaks detected by contrast-enhanced ultrasound in each group was calculated, and its ratio to the actual number of endoleaks was calculated to evaluate whether BMI was related to false-negative ultrasound-enhanced ultrasound. Results: A total of 203 follow-up visits met the inclusion criteria. Endoleaks were detected 36 times (17.7%) by CTA, 31 times (15.3%) by contrast-enhanced ultrasound, 16 times (7.9%) by CDUS, and they all detected type Ⅰ, type Ⅱ and type Ⅲ endoleaks. There was no significant difference between contrast-enhanced ultrasound and CTA in endoleak detection rate and determination of endoleak types (endoleak detection rate: 15.3% vs 17.7%; determination of endoleak types: type Ⅰ 4 vs 4, type Ⅱ 26 vs 31, type Ⅲ 1 vs 1; all P>0.05). CDUS and CTA had statistically significant differences in the detection rate of endoleaks and determination of endoleak types (endoleak detection rate: 7.9% vs 17.7%; determination of endoleak types: type Ⅰ 4 vs 4, type Ⅱ 11 vs 31, type Ⅲ 1 vs 1; all P<0.001). Compared with CTA, contrast-enhanced ultrasound has a sensitivity of 83.3%, a specificity of 99.4%, a Youden index of 0.827, a coincidence rate of 96.6%, a positive predictive value of 96.8%, a negative predictive value of 96.5%, and a Kappa value of 0.875(P<0.001). The two showed excellent diagnostic consistency. All 6 endoleaks not detected by contrast-enhanced ultrasound were type Ⅱ endoleak that did not require treatment, and 3(15.8%) occurred in obese patients with a BMI≥32 kg/m2. Compared with CTA, CDUS had a sensitivity of 38.9%, a specificity of 98.8%, a Youden index of 0.377, a coincidence rate of 88.2%, a positive predictive value of 87.5%, a negative predictive value of 88.2%, and a Kappa value of 0.482 (P<0.001). The two showed moderate diagnostic agreement. The correlation coefficient of the maximum diameter of aneurysms measured by ultrasound and CT was r=0.873(P<0.001). Conclusions: Contrast-enhanced ultrasound is accurate in detecting endoleak after infrarenal EVAR, and its sensitivity to endoleak detection in obese patients with BMI≥32 kg/m2 will be reduced. CDUS is not suitable for detection of endoleak after infrarenal EVAR, but it can be used to monitor the change of the largest diameter of aneurysm after EVAR.
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Affiliation(s)
- C Ma
- Department of General Surgery, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - J Zhang
- Department of General Surgery, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - M Xiao
- Department of General Surgery, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - N Kang
- Department of General Surgery, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - Y H Chen
- Department of General Surgery, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - X C Dai
- Department of General Surgery, Tianjin Medical University General Hospital, Tianjin 300052, China
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Wang R, Kang N, Zhang W, Chen B, Xu S, Wu L. The developmental toxicity of PM2.5 on the early stages of fetal lung with human lung bud tip progenitor organoids. Environ Pollut 2023; 330:121764. [PMID: 37142209 DOI: 10.1016/j.envpol.2023.121764] [Citation(s) in RCA: 5] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/14/2023] [Revised: 04/15/2023] [Accepted: 05/02/2023] [Indexed: 05/06/2023]
Abstract
Exposure to air pollution has been proven to be associated with impaired fetal lung development. However, due to the lack of reliable human source models, it is still challenging to deeply understand the human fetal lung development under PM2.5 exposure. Here, we utilized human embryonic stem cell (hESC) line H9 to generate lung bud tip progenitor organoids (LPOs), a process that mimics early stages of fetal lung development including definitive endoderm (DE) formation, anterior foregut endoderm (AFE) differentiation and lung progenitor cell specification, to evaluate potential pulmonary developmental toxicity of PM2.5. We demonstrated that PM2.5 exposure the entire LPOs induction from hESCs significantly affected cellular proliferation of LPOs, and altered the expression of lung progenitor cell markers NKX2.1, SOX2 and SOX9, which are canonically defined subsequently proximal-distal airways specification. To explore the dynamic influences of PM2.5 exposure at different stages of LPOs specification, we also found that PM2.5 exposure significantly affected the expression of several transcriptional factors that are important for the differentiation of DE and AFE. Mechanistically, we suggested PM2.5-induced developmental toxicity to LPOs was partially linked with the Wnt/β-catenin signaling pathway. Therefore, our findings further emphasize the substantial health risks in the development of respiratory system associated with prenatal exposure to PM2.5.
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Affiliation(s)
- Run Wang
- School of Environmental Science and Optoelectronic Technology, University of Science and Technology of China, Hefei, Anhui, 230026, PR China
| | - Ningning Kang
- The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, 230022, PR China
| | - Wen Zhang
- Information Materials and Intelligent Sensing Laboratory of Anhui Province, Institutes of Physical Science and Information Technology, Anhui University, Hefei, Anhui, 230601, PR China
| | - Biao Chen
- Information Materials and Intelligent Sensing Laboratory of Anhui Province, Institutes of Physical Science and Information Technology, Anhui University, Hefei, Anhui, 230601, PR China
| | - Shengmin Xu
- Information Materials and Intelligent Sensing Laboratory of Anhui Province, Institutes of Physical Science and Information Technology, Anhui University, Hefei, Anhui, 230601, PR China.
| | - Lijun Wu
- School of Environmental Science and Optoelectronic Technology, University of Science and Technology of China, Hefei, Anhui, 230026, PR China; Information Materials and Intelligent Sensing Laboratory of Anhui Province, Institutes of Physical Science and Information Technology, Anhui University, Hefei, Anhui, 230601, PR China
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12
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Xue H, Wen J, Liu C, Shuai X, Zhang X, Kang N. Modified transcrestal sinus floor elevation with concomitant implant placement in edentulous posterior maxillae with residual bone height of 5 mm or less: a non-controlled prospective study. Int J Oral Maxillofac Surg 2023; 52:495-502. [PMID: 36058822 DOI: 10.1016/j.ijom.2022.08.014] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2021] [Revised: 08/15/2022] [Accepted: 08/15/2022] [Indexed: 11/26/2022]
Abstract
The aim of this study was to describe a modified transcrestal sinus floor elevation (mTSFE) technique and to evaluate its clinical effectiveness and reliability when residual bone height is severely reduced. Forty-three maxillary edentulous patients who met the inclusion criteria were enrolled. All patients underwent the mTSFE technique; 66 dental implants were inserted simultaneously. Patient-reported outcomes were assessed 2 weeks after surgery. Prosthetic crowns were placed 6 months after surgery. Radiographic analyses and clinical analyses were conducted to assess the clinical effectiveness and feasibility of mTSFE during a follow-up period of 2-8 years. The mean vertical bone increase after surgery was 8.09 mm, and it decreased to 6.56 mm at 6 months after surgery. Two cases of membrane perforation occurred during surgery and one implant was lost in the third year after surgery; the survival rate at the implant level was 98.48%. No severe postoperative complication was reported and the subjective feeling of patients was acceptable. This mTSFE technique could simplify the operative procedure and might be helpful to reduce intraoperative trauma, as well as to alleviate postoperative discomfort.
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Affiliation(s)
- H Xue
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China; Department of Prosthodontics, Shanghai Ninth People's Hospital, College of Stomatology, Shanghai Jiao Tong University, School of Medicine; National Clinical Research Center for Oral Diseases; Shanghai Key Laboratory of Stomatology and Shanghai Research Institute of Stomatology, Shanghai, China
| | - J Wen
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - C Liu
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - X Shuai
- State Key Laboratory of Oral Diseases, National Clinical Research Center for Oral Diseases, West China Hospital of Stomatology, Sichuan University, Chengdu, China
| | - X Zhang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, China
| | - N Kang
- National Engineering Research Center for Biomaterials, Sichuan University, Chengdu, China; Department of Oral Implantology (National Key Clinical Department), West China Hospital of Stomatology, Sichuan University, Chengdu, China.
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13
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Kang N, Chen X, Yang H, Zhao S, Qi L. Effect of Different Placement Sequences of Water on the Methane Adsorption Properties of Coal. ACS Omega 2023; 8:6689-6698. [PMID: 36844514 PMCID: PMC9948196 DOI: 10.1021/acsomega.2c07283] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/13/2022] [Accepted: 01/19/2023] [Indexed: 06/18/2023]
Abstract
After the coal seam is injected with water, the moisture content in the coal body increases, which affects the output capacity of coalbed methane (CBM). In order to improve the effect of CBM mining, the classical anthracite molecular model has been selected. To analyze the influence of different placement orders of water and methane on the characteristics of coal-adsorbing methane from the micro point of view, a molecular simulation method is used for comprehensive consideration in the study. The results show that H2O does not change the mechanism of CH4 adsorption by anthracite, but it inhibits the adsorption of methane by anthracite. When water enters the system afterward, there arises an equilibrium pressure point where water plays the most significant role in inhibiting methane adsorption by anthracite coals, which increases with increasing moisture content. When water enters the system first, no equilibrium pressure point occurs. The excess adsorption of methane by anthracite when water enters second is higher. The reason is that H2O can replace CH4 at the higher energy adsorption sites of the anthracite structure, while CH4 can only be adsorbed at the lower energy sites, and some of CH4 is not adsorbed. For the coal samples with a low-moisture content system, the equivalent heat of adsorption of CH4 increases first rapidly and then slowly with the increase of pressure. However, it decreases with pressure in the high-moisture content system. The variation of the equivalent heat of adsorption further explains the variation of the magnitude of methane adsorption under different conditions.
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Affiliation(s)
- Ningning Kang
- State
Key Laboratory Cultivation Base for Gas Geology and Gas Control (Henan
Polytechnic University), Jiaozuo454003, China
| | - Xiangjun Chen
- State
Key Laboratory Cultivation Base for Gas Geology and Gas Control (Henan
Polytechnic University), Jiaozuo454003, China
- State
Collaborative Innovation Center of Coal Work Safety and Clean-efficiency
Utilization (Henan Polytechnic University), Jiaozuo454003, China
- College
of Safety Science and Engineering (Henan Polytechnic University), Jiaozuo454003, China
| | - Hongmin Yang
- State
Key Laboratory Cultivation Base for Gas Geology and Gas Control (Henan
Polytechnic University), Jiaozuo454003, China
- State
Collaborative Innovation Center of Coal Work Safety and Clean-efficiency
Utilization (Henan Polytechnic University), Jiaozuo454003, China
- College
of Safety Science and Engineering (Henan Polytechnic University), Jiaozuo454003, China
| | - San Zhao
- State
Key Laboratory Cultivation Base for Gas Geology and Gas Control (Henan
Polytechnic University), Jiaozuo454003, China
| | - Lingling Qi
- State
Key Laboratory Cultivation Base for Gas Geology and Gas Control (Henan
Polytechnic University), Jiaozuo454003, China
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14
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Wang YQ, Kang N, Li LW, Wang ZQ, Zhou R, Shen DH, Wang JL. [Significance of molecular classification in fertility-sparing treatment of endometrial carcinoma and atypical endometrial hyperplasia]. Zhonghua Fu Chan Ke Za Zhi 2022; 57:692-700. [PMID: 36177581 DOI: 10.3760/cma.j.cn112141-20220628-00419] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Objective: To investigate the molecular classification of endometrial carcinoma (EC) and atypical endometrial hyperplasia (AEH) treated with fertility-sparing therapy, and to analyze its relationship with clinicopathological factors and treatment efficacy. Methods: A total of 46 EC and AEH patients who received fertility-sparing therapy and molecular classification tested by next generation sequencing in Peking University People's Hospital from June 2020 to December 2021, were retrospectively collected. The relationships between molecular classification and clinicopathological factors and treatment outcomes were analyzed. Results: (1) Of the 46 patients, including 40 EC and 6 AEH patients, 32 cases (71%, 32/45) had complete response (CR) after treatment, with median CR time of 8 months, 6 cases (13%, 6/45) had partial response, and 8 cases (25%, 8/32) had recurrence. (2) The cases were distributed as no specific molecular profile (NSMP) 34 cases (74%, 34/46) subtype mainly, high microsatellite instability (MSI-H) 7 cases (15%, 7/46), POLE ultra-mutated 3 cases (7%, 3/46), and copy number high (CNH) 2 cases (4%, 2/46). Patients with CNH had the hightest serum cancer antigen 125 (CA125) level [(34.3±35.2) kU/L]. MSI-H subtype had more family history of tumors (6/7), more with loss of mismatch repair (MMR) protein expression by immunohistochemical (7/7), and higher nuclear antigen associated with cell proliferation (Ki-67) expression level (3/3). (3) Patients in MSI-H subgroup had the lowest CR rate at 6 months (0/6; P=0.019), and survival analysis showed that they were less likely to achieve CR than those with NSMP subtype (P=0.022). Subgroup analysis of patients with NSMP showed that age ≥30 years related with longer treatment time to CR (P=0.010). In addition, CR was obtained after treatment in 2/3 POLE ultra-mutated cases and 2/2 CNH, respectively. Conclusions: Molecular classification relates with the treatment response in patients with EC and AEH treated with fertility-sparing therapy. Patients with MSI-H subtype have poor treatment efficacy, and patients with NSMP need to be further studied and predict treatment benefit. However, there are few cases in POLE ultra-mutated and CNH subtypes, which need further clinical research.
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Affiliation(s)
- Y Q Wang
- Department of Obstetrics and Gynecology, Peking University People's Hospital, Beijing 100044, China
| | - N Kang
- Department of Pathology, Peking University People's Hospital, Beijing 100044, China
| | - L W Li
- Department of Obstetrics and Gynecology, Peking University People's Hospital, Beijing 100044, China
| | - Z Q Wang
- Department of Obstetrics and Gynecology, Peking University People's Hospital, Beijing 100044, China
| | - R Zhou
- Department of Obstetrics and Gynecology, Peking University People's Hospital, Beijing 100044, China
| | - D H Shen
- Department of Pathology, Peking University People's Hospital, Beijing 100044, China
| | - J L Wang
- Department of Obstetrics and Gynecology, Peking University People's Hospital, Beijing 100044, China
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Chen X, Wang X, Zhao S, Kang N, Feng S. Effect of Moisture on Methane Adsorption Characteristics of Long-Flame Coal. ACS Omega 2022; 7:16670-16677. [PMID: 35601315 PMCID: PMC9118383 DOI: 10.1021/acsomega.2c01144] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/25/2022] [Accepted: 04/20/2022] [Indexed: 06/15/2023]
Abstract
Long-flame coal is a bituminous coal with the lowest metamorphic degree, accounting for 16.1% of China's coal reserves. With increases in mining depths and intensities, mine gas disasters related to the mining of long-flame coal are becoming increasingly serious. Therefore, the exploration of the effect of moisture on the adsorption of methane in coal can provide support for popularizing the application of hydraulic measures in long-flame coal mining areas. In this paper, a molecular structure model of long-flame coal was established by molecular dynamics and the Monte Carlo method. The adsorption characteristics of methane in long-flame coal structures under different pressures were simulated, and the effects of different amounts of water on the methane adsorption and adsorption heat were explored. The results show that, under the same adsorption equilibrium pressure, the methane adsorption rate decreases with increasing water content, and with increasing adsorption equilibrium pressure, the adsorption capacity of methane increases gradually; this increasing trend is in agreement with the Langmuir equation. The water adsorption of coal is greater than the methane adsorption of coal. With the increase in the number of water molecules, when coal-based molecules adsorb methane and then adsorb water molecules, the adsorption heat of methane is reduced, and the desorption of methane molecules is promoted.
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Affiliation(s)
- Xiangjun Chen
- State Key Laboratory Cultivation Base for Gas Geology and Gas Control, Henan Polytechnic University, Jiaozuo 454003, China
- State Collaborative Innovation Center of Coal Work Safety and Clean-efficiency Utilization, Henan Polytechnic University, Jiaozuo 454003, China
- College of Safety Science and Engineering, Henan Polytechnic University, Jiaozuo 454003, China
| | - Xiaodan Wang
- State Key Laboratory Cultivation Base for Gas Geology and Gas Control, Henan Polytechnic University, Jiaozuo 454003, China
| | - San Zhao
- State Key Laboratory Cultivation Base for Gas Geology and Gas Control, Henan Polytechnic University, Jiaozuo 454003, China
| | - Ningning Kang
- State Key Laboratory Cultivation Base for Gas Geology and Gas Control, Henan Polytechnic University, Jiaozuo 454003, China
| | - Shuailong Feng
- State Key Laboratory Cultivation Base for Gas Geology and Gas Control, Henan Polytechnic University, Jiaozuo 454003, China
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16
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Wu K, Wang Z, Huang Y, Yao L, Kang N, Ge W, Zhang R, He W. LncRNA PTPRG-AS1 facilitates glycolysis and stemness properties of esophageal squamous cell carcinoma cells through miR-599/PDK1 axis. J Gastroenterol Hepatol 2022; 37:507-517. [PMID: 34676588 DOI: 10.1111/jgh.15719] [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] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2021] [Revised: 09/15/2021] [Accepted: 09/22/2021] [Indexed: 12/22/2022]
Abstract
BACKGROUND AND AIM Esophageal squamous cell carcinoma (ESCC) is the most significant subtype of esophageal cancer featured with high occurrence. Long noncoding RNAs (lncRNAs) have been proved to modulate the biological properties of cancer cells, including cell proliferation, invasion, migration, and apoptosis. LncRNA protein tyrosine phosphatase receptor type G-antisense RNA 1 (PTPRG-AS1) has been reported to play as an oncogene in diverse cancers. However, the detailed function PTPRG-AS1 may exert in ESCC is unclear. METHODS PTPRG-AS1 expression in ESCC cells was investigated via quantitative reverse transcription real-time polymerase chain reaction (RT-qPCR). The effects of PTPRG-AS1 on ESCC cell proliferation, migration, glycolysis, and stemness were verified through functional assays. Mechanism assays including RIP assay, RNA pull down assay, and luciferase reporter assays were performed to verify the molecular mechanism of PTPRG-AS1. RESULTS PTPRG-AS1 silencing hindered the proliferation, migration, glycolysis and stemness of ESCC cells. PTPRG-AS1 regulated pyruvate dehydrogenase kinase 1 (PDK1) expression via sponging miR-599. The PTPRG-AS1/miR-599/PDK1 axis was further verified to aggravate the progression of ESCC cells. CONCLUSION PTPRG-AS1 sponged miR-599 to up-regulate PDK1 expression, thereby promoting the proliferation and migration as well as glycolysis and stemness properties of ESCC cells.
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Affiliation(s)
- Kaiming Wu
- Department of Thoracic Surgery, the First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Ziao Wang
- Department of Thoracic Surgery, the First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Yunlong Huang
- Department of Thoracic Surgery, the First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Long Yao
- Department of Thoracic Surgery, the First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Ningning Kang
- Department of Thoracic Surgery, the First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Wei Ge
- Department of Thoracic Surgery, the First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Renquan Zhang
- Department of Thoracic Surgery, the First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Wei He
- School of Basic Medical Science, Anhui Medical University, Hefei, China
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Zheng H, Kang N, Huang Y, Zhao Y, Zhang R. Endoscopic resection versus esophagectomy for early esophageal cancer: a meta-analysis. Transl Cancer Res 2022; 10:2653-2662. [PMID: 35116578 PMCID: PMC8798594 DOI: 10.21037/tcr-21-182] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Accepted: 05/14/2021] [Indexed: 12/26/2022]
Abstract
Background Esophagectomy is the standard treatment for early-stage esophageal cancer but is associated with high morbidity and mortality. Thus, endoscopic resection is increasingly used as an alternative option. However, the literature is inconsistent regarding the efficacy of these treatments. This meta-analysis aimed to compare the efficacy and safety of these two treatments. Methods A systematic electronic search of PubMed, EMBASE, and the Cochrane Library was performed for studies comparing endoscopic resection and surgery for early-stage esophageal cancer. The overall survival, tumor recurrence, major adverse events, procedure-related mortality, and R0 resection rates were investigated. Forest plots were constructed based on the random-effects model. Results We found 15 studies involving 2,467 and 2,264 patients who underwent endoscopic resection and surgery, respectively. The meta-analysis showed that patients undergoing endoscopic resection had significantly fewer major adverse events (relative risk, 0.46; 95% confidence interval, 0.33–0.64) and a lower procedure-related mortality rate (relative risk, 0.27; 95% confidence interval, 0.10–0.73) than those undergoing surgery. The number of postprocedural stricture events did not significantly differ between the two treatments (relative risk, 0.89; 95% confidence interval, 0.53–1.49). Endoscopic resection was associated with higher recurrence rates (relative risk, 1.69; 95% confidence interval, 0.99–2.89) and lower R0 resection rates (relative risk, 0.92; 95% confidence interval, 0.86–0.98) than surgery. There may be some advantage conferred by esophagectomy in the long-term survival outcomes (hazard ratio, 1.21; 95% confidence interval, 1.02–1.43). Discussion Endoscopic resection is a minimally invasive and safe treatment for early-stage esophageal cancer. However, esophagectomy may be associated with better long-term survival.
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Affiliation(s)
- Hao Zheng
- Department of Thoracic Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Ningning Kang
- Department of Thoracic Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Yunlong Huang
- Department of Thoracic Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Yuan Zhao
- Department of Thoracic Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Renquan Zhang
- Department of Thoracic Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, China
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Lu X, Kang N, Ling X, Pan M, Du W, Gao S. MiR-27a-3p Promotes Non-Small Cell Lung Cancer Through SLC7A11-Mediated-Ferroptosis. Front Oncol 2021; 11:759346. [PMID: 34722314 PMCID: PMC8548660 DOI: 10.3389/fonc.2021.759346] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2021] [Accepted: 09/07/2021] [Indexed: 01/20/2023] Open
Abstract
Background Ferroptosis is a newly generated regulatory cell death promoted by the accumulated lipid-based reactive oxygen species (ROS). Solute carrier family 7 member 11 (SLC7A11), the cystine/glutamate antiporter, is known as a ferroptosis executor that exhibits a positive correlation with carcinoma progression because of antioxidant function. Nonetheless, it is yet unclear on the understanding of ferroptosis regulation in lung cancer. Methods Database, qRT-PCR, Western-blot (WB), and immunohistochemistry were utilized to determine SLC7A11 expression and function, as well as gene iron related to necrosis in clinical tissue specimens and cells; a ferroptosis inducer, inhibitors, and SLC7A11 lentivirus were used to confirm SLC7A11's biological activity in cell viability, oxidative stress, lipid peroxidation, and iron ion enrichment in non-small cell lung cancer (NSCLC) in different cells; lentivirus was used to infect lung adenocarcinoma cell lines to acquire miR-27a-3p overexpression and knockdown cell lines, and to detect SLC7A11 level through qRT-PCR and WB. The influence of upregulated/downregulated miR-27a-3p on ferroptosis and other related biological characteristics of lung adenocarcinoma cell lines was detected. Results Upregulated SLC7A11 was shown in NSCLC patients and cells, and increased SLC7A11 had a relation to the poorly prognostic status of NSCLC patients. Besides, a novel miRNA, miR-27a-3p, was an essential modulator of ferroptosis via directly targeting SLC7A11 in NSCLC cells. Overexpressing miR-27a-3p led to SLC7A11 suppression via directly binding to its 3'-UTR, followed by the reduction of erastin-caused ferroptosis. In contrast, inhibited miR-27a-3p resulted in an increase in NSCLC cells' sensitivity to erastin. Of importance, the accumulated lipid ROS and cell death of iron peptide mediated by anti-miR-27a-3p can be eliminated by impeding the glutamylation process. Our literature collectively uncovered that miR-27a-3p modulated ferroptosis by targeting SLC7A11 in NSCLC cells, illustrating the important role of miRNA in ferroptosis. Conclusion MiR-27a-3p modulates ferroptosis via targeting SLC7A11 in NSCLC cells, implying the significant role of miR-27a-3p/SLC7A11 in ferroptosis.
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Affiliation(s)
- Xuan Lu
- Department of Pharmacology, Basic Medical College, Anhui Medical University, Hefei, China
| | - Ningning Kang
- The First Affiliated Hospital, Anhui Medical University, Hefei, China
| | - Xinxin Ling
- Department of Pharmacology, Basic Medical College, Anhui Medical University, Hefei, China
| | - Ming Pan
- Department of Pharmacology, Basic Medical College, Anhui Medical University, Hefei, China
| | - Wenjing Du
- Department of Integrative Medicine, Huashan Hospital, Fudan University, Shanghai, China
| | - Shan Gao
- Department of Pharmacology, Basic Medical College, Anhui Medical University, Hefei, China
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Wang Y, Ye D, Kang M, Zhu L, Yang M, Jiang J, Xia W, Kang N, Chen X, Wang J, Wang F. Mapping of Cervical and Upper Mediastinal Lymph Node Recurrence for Guiding Clinical Target Delineation of Postoperative Radiotherapy in Thoracic Esophageal Squamous Cell Carcinoma. Front Oncol 2021; 11:663679. [PMID: 33981612 PMCID: PMC8107680 DOI: 10.3389/fonc.2021.663679] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Accepted: 04/06/2021] [Indexed: 11/24/2022] Open
Abstract
Background The lower neck and upper mediastinum are the major regions for postoperative radiotherapy (PORT) in thoracic esophageal squamous cell carcinoma (TESCC). However, there is no uniform standard regarding the delineation of nodal clinical target volume (CTVnd). This study aimed to map the recurrent lymph nodes in the cervical and upper mediastinal regions and explore a reasonable CTVnd for PORT in TESCC. Methods We retrospectively reviewed patients in our hospital with first cervical and/or upper mediastinal lymph node recurrence (LNR) after upfront esophagectomy. All of these recurrent lymph nodes were plotted on template computed tomography (CT) images with reference to surrounding structures. The recurrence frequency at different stations was investigated and the anatomic distribution of recurrent lymph nodes was analyzed. Results A total of 119 patients with 215 recurrent lymph nodes were identified. There were 47 (39.5%) patients with cervical LNR and 102 (85.7%) patients with upper mediastinal LNR. The high-risk regions were station 101L/R, station 104L/R, station 106recL/R, station 105 and station 106pre for upper TESCC and station 104L/R, station 106recL/R, station 105, station 106pre and station 106tbL for middle and lower TESCCs. LNR in the external group of station 104L/R was not common, and LNR was not found in the narrow spaces where the trachea was in close contact with the innominate artery, aortic arch and mediastinal pleura. LNR below the level of the cephalic margin of the superior vena cava was also not common for upper TESCC. Conclusions The CTVnd of PORT in the cervical and upper mediastinal regions should cover station 101L/R, station 104L/R, station 106recL/R, station 105 and station 106pre for upper TESCC and station 104L/R, station 106recL/R, station 105, station 106pre and station 106tbL for middle and lower TESCCs. Based on our results, we proposed a useful atlas for guiding the delineation of CTVnd in TESCC.
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Affiliation(s)
- Yichun Wang
- Department of Radiation Oncology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Dongmei Ye
- Department of Thoracic Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Mei Kang
- Department of Radiation Oncology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Liyang Zhu
- Department of Radiation Oncology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Mingwei Yang
- Department of Radiation Oncology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Jun Jiang
- Department of Radiation Oncology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Wanli Xia
- Department of Thoracic Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Ningning Kang
- Department of Thoracic Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Xiangcun Chen
- Department of Radiation Oncology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Jie Wang
- Department of Medical Imaging, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Fan Wang
- Department of Radiation Oncology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
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Li Y, Miao L, Wang Y, Shi M, Kang N, Zhou Y, Chen H, Huang G. P72.01 Stress-Induced Upregulation of TNFSF4 in Cancer Associated Fibroblasts Facilitates Chemoresistance of Lung Adenocarcinoma. J Thorac Oncol 2021. [DOI: 10.1016/j.jtho.2021.01.1019] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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21
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Qian M, Zheng JL, Kang N, Su YL. Down-regulation of long noncoding RNA PGM5-AS1 correlates with tumor progression and predicts poor prognosis in clear cell renal cell carcinoma. Eur Rev Med Pharmacol Sci 2021; 23:10685-10690. [PMID: 31858536 DOI: 10.26355/eurrev_201912_19767] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Growing studies have shown that long non-coding RNAs (lncRNAs) have critical regulatory roles in tumorigenesis. Recently, a newly identified lncRNA, Homo sapiens PGM5 antisense RNA 1 (PGM5-AS1), was found to be dysregulated in several tumors. However, its roles in clear cell renal cell carcinoma (ccRCC) have not been investigated. The aim of the present study was to clarify the clinical significance of PGM5-AS1 in ccRCC patients. PATIENTS AND METHODS The PGM5-AS1 expression levels were evaluated in 182 primary ccRCC patients using quantitative real-time PCR assays. The associations between expression of PGM5-AS1, clinicopathological parameters, and prognosis of ccRCC were examined using Chi-square test, Kaplan-Meier assays, and multivariate assays. RESULTS The expressions of PGM5-AS1 in cancer specimens were lower than those in matched non-tumor specimens from the ccRCC patient (p<0.05). Downregulation of PGM5-AS1 was closely associated with more advanced clinical features, including lymph nodes metastasis (p=0.007) and distant metastasis (p=0.037). A clinical study revealed that ccRCC patients with lower PGM5-AS1 expressions had substantially shorter overall survival (OS) and disease-free survival (DFS) than patients with higher PGM5-AS1 expressions. Further multivariate assays demonstrated that PGM5-AS1 was identified as an independent prognostic factor for patients with ccRCC. CONCLUSIONS Down-regulation of PGM5-AS1 in ccRCC tissues had a strong association with unfavorable outcomes and PGM5-AS1 might be a potential tumor suppressor.
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Affiliation(s)
- M Qian
- Department of Laboratory, Jinan First People's Hospital, Jinan, Shandong, China.
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22
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Kang N. P11 The First Truly Sutureless Valve. Heart Lung Circ 2021. [DOI: 10.1016/j.hlc.2021.03.214] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Liu W, Sun J, Guo Y, Liu N, Ding X, Zhang X, Chi J, Kang N, Liu Y, Yin X. Calhex231 ameliorates myocardial fibrosis post myocardial infarction in rats through the autophagy-NLRP3 inflammasome pathway in macrophages. J Cell Mol Med 2020; 24:13440-13453. [PMID: 33043596 PMCID: PMC7701583 DOI: 10.1111/jcmm.15969] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2020] [Revised: 09/16/2020] [Accepted: 09/22/2020] [Indexed: 12/27/2022] Open
Abstract
The calcium‐sensing receptor (CaSR) is involved in the pathophysiology of many cardiovascular diseases, including myocardial infarction (MI) and hypertension. The role of Calhex231, a specific inhibitor of CaSR, in myocardial fibrosis following MI is still unclear. Using Wistar rats, we investigated whether Calhex231 ameliorates myocardial fibrosis through the autophagy‐NLRP3 inflammasome pathway in macrophages post myocardial infarction (MI). The rats were randomly divided into sham, MI and MI + Calhex231 groups. Compared with the sham rats, the MI rats consistently developed severe cardiac function, myocardial fibrosis and infiltration of inflammatory cells including macrophages. Moreover, inflammatory pathway including activation of NLRP3 inflammasome, IL‐1β and autophagy was significantly up‐regulated in myocardial tissue, infiltrated cardiac macrophages and peritoneal macrophages of the MI rats. These impacts were reversed by Calhex231. In vitro, studies revealed that calindol and rapamycin exacerbated MI‐induced autophagy and NLRP3 inflammasome activation in peritoneal macrophages. Calhex231 and 3‐Methyladenine (a specific inhibitor of autophagy) attenuated both autophagy and NLRP3 inflammasome activation; however, the caspase‐1 inhibitor Z‐YVAD‐FMK did not. Our study indicated that Calhex231 improved cardiac function and ameliorated myocardial fibrosis post MI, likely via the inhibition of autophagy‐mediated NLRP3 inflammasome activation; this provides a new therapeutic target for ventricular remodelling‐related cardiovascular diseases.
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Affiliation(s)
- Wenxiu Liu
- Department of Cardiology, First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Jiaxing Sun
- Department of Cardiology, First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Yutong Guo
- Department of Cardiology, First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Na Liu
- Department of Cardiology, First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xue Ding
- Department of Cardiology, First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xin Zhang
- Department of Cardiology, First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Jinyu Chi
- Department of Cardiology, First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Ningning Kang
- Department of Cardiology, First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Yue Liu
- Department of Cardiology, First Affiliated Hospital of Harbin Medical University, Harbin, China
| | - Xinhua Yin
- Department of Cardiology, First Affiliated Hospital of Harbin Medical University, Harbin, China
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24
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Huan H, Liu C, Yang Z, Bao JL, Liu C, Wang JT, Zhang L, Wang CH, Ci RSP, Tu QL, Ren T, Xu D, Zhang HJ, Li XG, Kang N, Li XP, Wu YH, Pu X, Tan YJ, Cao JJ, Luo SWQ, Luo SQP, Zhuo M, Qi XL. [Current situation of screening, prevention and treatment of bleeding esophageal varices in cirrhotic portal hypertension in Tibet region: a multicenter study]. Zhonghua Gan Zang Bing Za Zhi 2020; 28:737-741. [PMID: 33053972 DOI: 10.3760/cma.j.cn501113-20200615-00318] [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: 06/11/2023]
Abstract
Objective: To investigate and analyze the current situation, screening, clinical characteristics, prevention and treatment of bleeding esophageal varices in cirrhotic patients with portal hypertension in Tibet region. Methods: Clinical data of cirrhotic patients with portal hypertension through March 2017 to February 2020 from Tibet region were collected and analyzed retrospectively. Results: 511 cases with liver cirrhosis were included in the study, of which 185 cases (36.20%) had compensated cirrhosis and 326 cases (63.80%) had decompensated cirrhosis. Further analysis of the etiological data of liver cirrhosis showed that 306 cases (59.88%) were of chronic hepatitis B, 113 cases (22.11%) of alcoholic liver disease, and 68 cases (13.31%) of chronic hepatitis B combined with alcoholic liver disease. Among patients with compensated liver cirrhosis, 48 cases (25.95%) underwent endoscopic examination of which 33 diagnosed as high-risk variceal bleeding. However, none of these 33 cases had received non-selective β-blocker therapy, and only four patients had received endoscopic variceal banding therapy. Among patients with decompensated liver cirrhosis, 83 cases (25.46%) had a history of upper gastrointestinal bleeding, 297 cases (91.10%) had ascites, 23 cases (7.05%) had hepatic encephalopathy, and 3 cases (0.92%) had hepatorenal syndrome. Among the patients with a history of upper gastrointestinal bleeding, 42 cases (50.60%) had received secondary preventive treatment for bleeding esophageal varices, including 39 cases of endoscopic treatment, 1 case of endoscopic combined drug treatment, 3 cases of interventional treatment, and 2 cases of surgical treatment. Conclusion: Chronic hepatitis B and alcoholic liver diseases are the main causes of liver cirrhosis in Tibet region. Moreover, this region lacks screening, prevention and treatment for bleeding esophageal varices in cirrhotic patients with portal hypertension. Therefore, it is necessary to increase the screening of high-risk groups to prevent and improve the first-time bleeding, and promote multidisciplinary team to prevent and treat re-bleeding.
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Affiliation(s)
- H Huan
- Department of Gastroenterology, Hospital of Chengdu Office of People's Government of Tibetan Autonomous Region, Chengdu 610041, China
| | - C Liu
- Department of Gastroenterology, Hospital of Chengdu Office of People's Government of Tibetan Autonomous Region, Chengdu 610041, China
| | - Z Yang
- Department of Hepatology, The Third People's Hospital of Tibet Autonomous Region, Lasa 850000, China
| | - J L Bao
- Department of Gastroenterology,Shannan People's Hospital, Shannan 856000, China
| | - C Liu
- CHESS Center, Institute of Portal Hypertension, The First Hospital of Lanzhou University, Lanzhou 730000, China
| | - J T Wang
- CHESS Center, Institute of Portal Hypertension, The First Hospital of Lanzhou University, Lanzhou 730000, China
| | - L Zhang
- Beijing Tsinghua Changgung Hospital, Tsinghua University, Beijing 102218, China
| | - C H Wang
- Department of Gastroenterology, The Second People's Hospital of Tibet Autonomous Region, Lasa 850000, China
| | - R S P Ci
- Department of Internal Medicine, Naqu Tibetan Hospital, Naqu 852000, China
| | - Q L Tu
- Department of Gastroenterology, Hospital of Chengdu Office of People's Government of Tibetan Autonomous Region, Chengdu 610041, China
| | - T Ren
- Department of Gastroenterology, Hospital of Chengdu Office of People's Government of Tibetan Autonomous Region, Chengdu 610041, China
| | - D Xu
- CHESS Center, Institute of Portal Hypertension, The First Hospital of Lanzhou University, Lanzhou 730000, China
| | - H J Zhang
- CHESS Center, Institute of Portal Hypertension, The First Hospital of Lanzhou University, Lanzhou 730000, China
| | - X G Li
- CHESS Center, Institute of Portal Hypertension, The First Hospital of Lanzhou University, Lanzhou 730000, China
| | - N Kang
- CHESS Center, Institute of Portal Hypertension, The First Hospital of Lanzhou University, Lanzhou 730000, China
| | - X P Li
- Department of Gastroenterology, Hospital of Chengdu Office of People's Government of Tibetan Autonomous Region, Chengdu 610041, China
| | - Y H Wu
- Department of Gastroenterology, Hospital of Chengdu Office of People's Government of Tibetan Autonomous Region, Chengdu 610041, China
| | - X Pu
- Department of Gastroenterology, Hospital of Chengdu Office of People's Government of Tibetan Autonomous Region, Chengdu 610041, China
| | - Y J Tan
- Department of Gastroenterology, Hospital of Chengdu Office of People's Government of Tibetan Autonomous Region, Chengdu 610041, China
| | - J J Cao
- Medical Administration, Ali District Health and Safety Commission, Ali 859000, China
| | - S W Q Luo
- Department of Internal Medicine, Naqu Tibetan Hospital, Naqu 852000, China
| | - S Q P Luo
- Department of Pediatrics, Ali District People's Hospital, Ali 859000, China
| | - M Zhuo
- Department of Gastroenterology, Lasa People's Hospital, Lasa 850000, China
| | - X L Qi
- CHESS Center, Institute of Portal Hypertension, The First Hospital of Lanzhou University, Lanzhou 730000, China
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Yang L, Kang N, Yang JC, Su QJ, Liu YZ, Guan L, Liu T, Meng XL, Wang Y, Hai Y. Drug efficacies on bone mineral density and fracture rate for the treatment of postmenopausal osteoporosis: a network meta-analysis. Eur Rev Med Pharmacol Sci 2020; 23:2640-2668. [PMID: 30964193 DOI: 10.26355/eurrev_201903_17414] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Globally, a great number of elderly suffer from osteoporosis, especially postmenopausal women. Osteoporosis results in low bone mineral density (BMD) and high risk of fragility fracture. However, there is no defined strategy to select the most suitable anti-osteoporotic drugs for osteoporosis patients. Therefore, this study aims to select the most effective anti-osteoporotic drug for postmenopausal women with osteoporosis. MATERIALS AND METHODS Literature search was conducted in PubMed, EMBASE, and the Cochrane Library. Raw data from the related randomized clinical trials were extracted. A pairwise and network meta-analysis model was utilized to assess the efficacy of ten drugs on the percentage change of BMD in the lumbar spine and total hip from baseline to one year of treatment. Risks of vertebral fracture and non-vertebral fracture were evaluated as well. We reported the effect size with a weighted mean difference (WMD) for continuous outcomes and odds ratio (OR) for dichotomous outcomes. All the drugs were ranked based on the surface under the cumulative ranking curve (SUCRA) value. Furthermore, the heterogeneity, consistency and publication bias of enrolled literature were assessed. RESULTS With regard to lumbar spine BMD, the ten selected drugs all showed significant efficacy compared with placebo. In regard to total hip BMD and vertebral fracture, with the exception of calcitonin, the remaining nine drugs all showed significant efficacy compared with placebo. Six drugs - abaloparatide, alendronate, risedronate, strontium ranelate, teriparatide, and zoledronate - were significantly more effective compared with placebo for the treatment of non-vertebral fractures. As the SUCRA values indicated, abaloparatide performed the best on improving lumbar spine BMD, vertebral fracture and non-vertebral fracture, while denosumab was the best choice to improve total hip BMD. CONCLUSIONS To sum up, abaloparatide, denosumab, and teriparatide showed the best efficacy for the treatment of postmenopausal osteoporosis, especially abaloparatide.
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Affiliation(s)
- L Yang
- Department of Orthopedics, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China.
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26
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Angelopoulos V, Tsai E, Bingley L, Shaffer C, Turner DL, Runov A, Li W, Liu J, Artemyev AV, Zhang XJ, Strangeway RJ, Wirz RE, Shprits YY, Sergeev VA, Caron RP, Chung M, Cruce P, Greer W, Grimes E, Hector K, Lawson MJ, Leneman D, Masongsong EV, Russell CL, Wilkins C, Hinkley D, Blake JB, Adair N, Allen M, Anderson M, Arreola-Zamora M, Artinger J, Asher J, Branchevsky D, Capitelli MR, Castro R, Chao G, Chung N, Cliffe M, Colton K, Costello C, Depe D, Domae BW, Eldin S, Fitzgibbon L, Flemming A, Fox I, Frederick DM, Gilbert A, Gildemeister A, Gonzalez A, Hesford B, Jha S, Kang N, King J, Krieger R, Lian K, Mao J, McKinney E, Miller JP, Norris A, Nuesca M, Palla A, Park ESY, Pedersen CE, Qu Z, Rozario R, Rye E, Seaton R, Subramanian A, Sundin SR, Tan A, Turner W, Villegas AJ, Wasden M, Wing G, Wong C, Xie E, Yamamoto S, Yap R, Zarifian A, Zhang GY. The ELFIN Mission. Space Sci Rev 2020; 216:103. [PMID: 32831412 PMCID: PMC7413588 DOI: 10.1007/s11214-020-00721-7] [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] [Grants] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 04/02/2020] [Accepted: 07/09/2020] [Indexed: 06/11/2023]
Abstract
The Electron Loss and Fields Investigation with a Spatio-Temporal Ambiguity-Resolving option (ELFIN-STAR, or heretoforth simply: ELFIN) mission comprises two identical 3-Unit (3U) CubeSats on a polar (∼93∘ inclination), nearly circular, low-Earth (∼450 km altitude) orbit. Launched on September 15, 2018, ELFIN is expected to have a >2.5 year lifetime. Its primary science objective is to resolve the mechanism of storm-time relativistic electron precipitation, for which electromagnetic ion cyclotron (EMIC) waves are a prime candidate. From its ionospheric vantage point, ELFIN uses its unique pitch-angle-resolving capability to determine whether measured relativistic electron pitch-angle and energy spectra within the loss cone bear the characteristic signatures of scattering by EMIC waves or whether such scattering may be due to other processes. Pairing identical ELFIN satellites with slowly-variable along-track separation allows disambiguation of spatial and temporal evolution of the precipitation over minutes-to-tens-of-minutes timescales, faster than the orbit period of a single low-altitude satellite (Torbit ∼ 90 min). Each satellite carries an energetic particle detector for electrons (EPDE) that measures 50 keV to 5 MeV electrons with Δ E/E < 40% and a fluxgate magnetometer (FGM) on a ∼72 cm boom that measures magnetic field waves (e.g., EMIC waves) in the range from DC to 5 Hz Nyquist (nominally) with <0.3 nT/sqrt(Hz) noise at 1 Hz. The spinning satellites (Tspin ∼ 3 s) are equipped with magnetorquers (air coils) that permit spin-up or -down and reorientation maneuvers. Using those, the spin axis is placed normal to the orbit plane (nominally), allowing full pitch-angle resolution twice per spin. An energetic particle detector for ions (EPDI) measures 250 keV - 5 MeV ions, addressing secondary science. Funded initially by CalSpace and the University Nanosat Program, ELFIN was selected for flight with joint support from NSF and NASA between 2014 and 2018 and launched by the ELaNa XVIII program on a Delta II rocket (with IceSatII as the primary). Mission operations are currently funded by NASA. Working under experienced UCLA mentors, with advice from The Aerospace Corporation and NASA personnel, more than 250 undergraduates have matured the ELFIN implementation strategy; developed the instruments, satellite, and ground systems and operate the two satellites. ELFIN's already high potential for cutting-edge science return is compounded by concurrent equatorial Heliophysics missions (THEMIS, Arase, Van Allen Probes, MMS) and ground stations. ELFIN's integrated data analysis approach, rapid dissemination strategies via the SPace Environment Data Analysis System (SPEDAS), and data coordination with the Heliophysics/Geospace System Observatory (H/GSO) optimize science yield, enabling the widest community benefits. Several storm-time events have already been captured and are presented herein to demonstrate ELFIN's data analysis methods and potential. These form the basis of on-going studies to resolve the primary mission science objective. Broad energy precipitation events, precipitation bands, and microbursts, clearly seen both at dawn and dusk, extend from tens of keV to >1 MeV. This broad energy range of precipitation indicates that multiple waves are providing scattering concurrently. Many observed events show significant backscattered fluxes, which in the past were hard to resolve by equatorial spacecraft or non-pitch-angle-resolving ionospheric missions. These observations suggest that the ionosphere plays a significant role in modifying magnetospheric electron fluxes and wave-particle interactions. Routine data captures starting in February 2020 and lasting for at least another year, approximately the remainder of the mission lifetime, are expected to provide a very rich dataset to address questions even beyond the primary mission science objective.
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Affiliation(s)
- V Angelopoulos
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Institute of Geophysics and Planetary Physics, University of California, San Diego, CA USA
| | - E Tsai
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Institute of Geophysics and Planetary Physics, University of California, San Diego, CA USA
| | - L Bingley
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Institute of Geophysics and Planetary Physics, University of California, San Diego, CA USA
| | - C Shaffer
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Present Address: Tyvak Nano-Satellite Systems, Inc., Irvine, CA 92618 USA
| | - D L Turner
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Present Address: Johns Hopkins University Applied Physics Laboratory, Laurel, MD 20723 USA
| | - A Runov
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Institute of Geophysics and Planetary Physics, University of California, San Diego, CA USA
| | - W Li
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Institute of Geophysics and Planetary Physics, University of California, San Diego, CA USA
- Present Address: Department of Astronomy and Center for Space Physics, Boston University, Boston, MA 02215 USA
| | - J Liu
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Institute of Geophysics and Planetary Physics, University of California, San Diego, CA USA
| | - A V Artemyev
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Institute of Geophysics and Planetary Physics, University of California, San Diego, CA USA
| | - X-J Zhang
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Institute of Geophysics and Planetary Physics, University of California, San Diego, CA USA
| | - R J Strangeway
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Institute of Geophysics and Planetary Physics, University of California, San Diego, CA USA
| | - R E Wirz
- Mechanical and Aerospace Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
| | - Y Y Shprits
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- GFZ German Research Centre for Geosciences, Potsdam, 14473 Germany
| | - V A Sergeev
- Saint Petersburg State University, St. Petersburg, 199034 Russia
| | - R P Caron
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Institute of Geophysics and Planetary Physics, University of California, San Diego, CA USA
| | - M Chung
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Present Address: Johns Hopkins University Applied Physics Laboratory, Laurel, MD 20723 USA
| | - P Cruce
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Present Address: Northrop Grumman Aerospace Systems, Redondo Beach, CA 90278 USA
| | - W Greer
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Institute of Geophysics and Planetary Physics, University of California, San Diego, CA USA
| | - E Grimes
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Institute of Geophysics and Planetary Physics, University of California, San Diego, CA USA
| | - K Hector
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Institute of Geophysics and Planetary Physics, University of California, San Diego, CA USA
- Present Address: Raytheon Space and Airborne Systems, El Segundo, CA 90245 USA
| | - M J Lawson
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Institute of Geophysics and Planetary Physics, University of California, San Diego, CA USA
| | - D Leneman
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Institute of Geophysics and Planetary Physics, University of California, San Diego, CA USA
| | - E V Masongsong
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Institute of Geophysics and Planetary Physics, University of California, San Diego, CA USA
| | - C L Russell
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Institute of Geophysics and Planetary Physics, University of California, San Diego, CA USA
| | - C Wilkins
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Institute of Geophysics and Planetary Physics, University of California, San Diego, CA USA
| | - D Hinkley
- The Aerospace Corporation, El Segundo, CA 90245 USA
| | - J B Blake
- The Aerospace Corporation, El Segundo, CA 90245 USA
| | - N Adair
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Present Address: Millenium Space Systems, El Segundo, CA 90245 USA
- Institute of Geophysics and Planetary Physics, University of California, San Diego, CA USA
| | - M Allen
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Institute of Geophysics and Planetary Physics, University of California, San Diego, CA USA
- Present Address: Northrop Grumman Aerospace Systems, Redondo Beach, CA 90278 USA
| | - M Anderson
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Present Address: Aptiv, Agoura Hills, CA 91301 USA
- Institute of Geophysics and Planetary Physics, University of California, San Diego, CA USA
| | - M Arreola-Zamora
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Institute of Geophysics and Planetary Physics, University of California, San Diego, CA USA
| | - J Artinger
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Institute of Geophysics and Planetary Physics, University of California, San Diego, CA USA
- Physics and Astronomy Department, University of California, Los Angeles, CA 90095 USA
| | - J Asher
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Institute of Geophysics and Planetary Physics, University of California, San Diego, CA USA
- Present Address: Johns Hopkins University Applied Physics Laboratory, Laurel, MD 20723 USA
| | - D Branchevsky
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- The Aerospace Corporation, El Segundo, CA 90245 USA
- Institute of Geophysics and Planetary Physics, University of California, San Diego, CA USA
| | - M R Capitelli
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Present Address: Millenium Space Systems, El Segundo, CA 90245 USA
- Institute of Geophysics and Planetary Physics, University of California, San Diego, CA USA
| | - R Castro
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Institute of Geophysics and Planetary Physics, University of California, San Diego, CA USA
- Present Address: Raytheon Space and Airborne Systems, El Segundo, CA 90245 USA
| | - G Chao
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Present Address: The Boeing Company, Long Beach, CA 90808 USA
- Institute of Geophysics and Planetary Physics, University of California, San Diego, CA USA
| | - N Chung
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Present Address: SF Motors, Santa Clara, CA 95054 USA
- Institute of Geophysics and Planetary Physics, University of California, San Diego, CA USA
| | - M Cliffe
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Present Address: SpaceX, Hawthorne, CA 90250 USA
- Institute of Geophysics and Planetary Physics, University of California, San Diego, CA USA
| | - K Colton
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Present Address: Planet Labs, Inc., San Francisco, CA 94107 USA
- Institute of Geophysics and Planetary Physics, University of California, San Diego, CA USA
| | - C Costello
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Computer Science Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
- Institute of Geophysics and Planetary Physics, University of California, San Diego, CA USA
| | - D Depe
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Electrical and Computer Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
- Institute of Geophysics and Planetary Physics, University of California, San Diego, CA USA
| | - B W Domae
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Electrical and Computer Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
- Institute of Geophysics and Planetary Physics, University of California, San Diego, CA USA
| | - S Eldin
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Electrical and Computer Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
- Institute of Geophysics and Planetary Physics, University of California, San Diego, CA USA
| | - L Fitzgibbon
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Institute of Geophysics and Planetary Physics, University of California, San Diego, CA USA
- Present Address: Tyvak Nano-Satellite Systems, Inc., Irvine, CA 92618 USA
| | - A Flemming
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Institute of Geophysics and Planetary Physics, University of California, San Diego, CA USA
- Present Address: Northrop Grumman Aerospace Systems, Redondo Beach, CA 90278 USA
| | - I Fox
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Institute of Geophysics and Planetary Physics, University of California, San Diego, CA USA
- Mechanical and Aerospace Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
| | - D M Frederick
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Present Address: Millenium Space Systems, El Segundo, CA 90245 USA
- Institute of Geophysics and Planetary Physics, University of California, San Diego, CA USA
| | - A Gilbert
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Electrical and Computer Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
- Institute of Geophysics and Planetary Physics, University of California, San Diego, CA USA
| | - A Gildemeister
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Institute of Geophysics and Planetary Physics, University of California, San Diego, CA USA
- Present Address: Northrop Grumman Aerospace Systems, Redondo Beach, CA 90278 USA
| | - A Gonzalez
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Present Address: SpaceX, Hawthorne, CA 90250 USA
- Institute of Geophysics and Planetary Physics, University of California, San Diego, CA USA
| | - B Hesford
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Present Address: Jet Propulsion Laboratory, Pasadena, CA 91109 USA
- Institute of Geophysics and Planetary Physics, University of California, San Diego, CA USA
| | - S Jha
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Computer Science Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
- Institute of Geophysics and Planetary Physics, University of California, San Diego, CA USA
| | - N Kang
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Present Address: Millenium Space Systems, El Segundo, CA 90245 USA
- Institute of Geophysics and Planetary Physics, University of California, San Diego, CA USA
| | - J King
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Computer Science Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
- Institute of Geophysics and Planetary Physics, University of California, San Diego, CA USA
| | - R Krieger
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Institute of Geophysics and Planetary Physics, University of California, San Diego, CA USA
- Present Address: Mercedes-Benz Research and Development North America, Long Beach, CA 90810 USA
| | - K Lian
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Institute of Geophysics and Planetary Physics, University of California, San Diego, CA USA
- Present Address: Northrop Grumman Aerospace Systems, Redondo Beach, CA 90278 USA
| | - J Mao
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Institute of Geophysics and Planetary Physics, University of California, San Diego, CA USA
- Present Address: Verona, WI 53593 USA
| | - E McKinney
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Institute of Geophysics and Planetary Physics, University of California, San Diego, CA USA
- Present Address: California State Polytechnic University, Pomona, CA 91768 USA
| | - J P Miller
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Computer Science Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
- Institute of Geophysics and Planetary Physics, University of California, San Diego, CA USA
| | - A Norris
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
| | - M Nuesca
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Computer Science Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
- Institute of Geophysics and Planetary Physics, University of California, San Diego, CA USA
| | - A Palla
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Computer Science Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
- Institute of Geophysics and Planetary Physics, University of California, San Diego, CA USA
| | - E S Y Park
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Institute of Geophysics and Planetary Physics, University of California, San Diego, CA USA
- Present Address: Economics Department, University of California, Los Angeles, CA 90095 USA
| | - C E Pedersen
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Institute of Geophysics and Planetary Physics, University of California, San Diego, CA USA
- Mechanical and Aerospace Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
| | - Z Qu
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Institute of Geophysics and Planetary Physics, University of California, San Diego, CA USA
- Mechanical and Aerospace Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
| | - R Rozario
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Present Address: SpaceX, Hawthorne, CA 90250 USA
- Institute of Geophysics and Planetary Physics, University of California, San Diego, CA USA
| | - E Rye
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Electrical and Computer Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
- Institute of Geophysics and Planetary Physics, University of California, San Diego, CA USA
| | - R Seaton
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Institute of Geophysics and Planetary Physics, University of California, San Diego, CA USA
- Mechanical and Aerospace Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
| | - A Subramanian
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Institute of Geophysics and Planetary Physics, University of California, San Diego, CA USA
- Present Address: Northrop Grumman Aerospace Systems, Redondo Beach, CA 90278 USA
| | - S R Sundin
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Institute of Geophysics and Planetary Physics, University of California, San Diego, CA USA
- Present Address: Tyvak Nano-Satellite Systems, Inc., Irvine, CA 92618 USA
| | - A Tan
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Institute of Geophysics and Planetary Physics, University of California, San Diego, CA USA
- Present Address: Experior Laboratories, Oxnard, CA 93033 USA
| | - W Turner
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Institute of Geophysics and Planetary Physics, University of California, San Diego, CA USA
- Physics and Astronomy Department, University of California, Los Angeles, CA 90095 USA
| | - A J Villegas
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Institute of Geophysics and Planetary Physics, University of California, San Diego, CA USA
- Physics and Astronomy Department, University of California, Los Angeles, CA 90095 USA
| | - M Wasden
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Institute of Geophysics and Planetary Physics, University of California, San Diego, CA USA
- Mechanical and Aerospace Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
| | - G Wing
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Computer Science Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
- Institute of Geophysics and Planetary Physics, University of California, San Diego, CA USA
| | - C Wong
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Institute of Geophysics and Planetary Physics, University of California, San Diego, CA USA
- Physics and Astronomy Department, University of California, Los Angeles, CA 90095 USA
| | - E Xie
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Electrical and Computer Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
- Institute of Geophysics and Planetary Physics, University of California, San Diego, CA USA
| | - S Yamamoto
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Institute of Geophysics and Planetary Physics, University of California, San Diego, CA USA
- Mechanical and Aerospace Engineering Department, Henry Samueli School of Engineering, University of California, Los Angeles, CA 90095 USA
| | - R Yap
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Institute of Geophysics and Planetary Physics, University of California, San Diego, CA USA
- Mathematics Department, University of California, Los Angeles, CA 90095 USA
| | - A Zarifian
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Present Address: Jet Propulsion Laboratory, Pasadena, CA 91109 USA
- Institute of Geophysics and Planetary Physics, University of California, San Diego, CA USA
| | - G Y Zhang
- Earth, Planetary, and Space Sciences Department, University of California, Los Angeles, CA 90095 USA
- Institute of Geophysics and Planetary Physics, University of California, San Diego, CA USA
- Present Address: Qualcomm, San Diego, CA 92121 USA
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Yang L, Zeng Z, Kang N, Yang JC, Wei X, Hai Y. Circ-VANGL1 promotes the progression of osteoporosis by absorbing miRNA-217 to regulate RUNX2 expression. Eur Rev Med Pharmacol Sci 2020; 23:949-957. [PMID: 30779060 DOI: 10.26355/eurrev_201902_16981] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE This study aims to investigate whether circ-VANGL1 can promote the progression of osteoporosis (OP) by absorbing miRNA-217 to regulate RUNX2 expression. PATIENTS AND METHODS The serum levels of circ-VANGL1, miRNA-217 and RUNX2 in OP patients and non-OP patients were detected by quantitative Real Time-Polymerase Chain Reaction (qRT-PCR). Their expression levels in human bone marrow mesenchymal stem cells (hBMSCs) at different time points of osteogenesis differentiation were determined as well. The expression levels of RUNX2 and osteogenic proteins (BSP, OCN, OPN) in hBMSCs were detected by Western blot. Dual-Luciferase reporter gene assay was performed to verify the relationship among circ-VANGL1, miRNA-217 and RUNX2. Alkaline phosphatase (ALP) staining was conducted to evaluate the degree of osteogenic differentiation influenced by circ-VANGL1 and miRNA-217. RESULTS OP patients presented a higher serum level of miRNA-217 and lower serum levels of circ-VANGL1 and RUNX2 relative to non-OP patients. Circ-VANGL1 accelerated osteogenic differentiation by absorbing miRNA-217 to regulate RUNX2 expression. Moreover, miRNA-217 inhibited osteogenic differentiation by degrading RUNX2 by targeting to RUNX2 3'UTR. The overexpression of circ-VANGL1 upregulated expressions of RUNX2, BSP, OCN, and OPN. Meanwhile, ALP activity increased in hBMSCs overexpressing circ-VANGL1. However, co-overexpression of circ-VANGL1 and miRNA-217 did not alter RUNX2 expression. ALP activity in hBMSCs co-overexpressing circ-VANGL1 and miRNA-217 slightly increased, but had no difference with controls. CONCLUSIONS Circ-VANGL1 promotes the development of OP via binding to miRNA-217 to downregulate RUNX2 expression.
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Affiliation(s)
- L Yang
- Department of Orthopedics, Beijing Chaoyang Hospital, Capital Medical University, Beijing, China.
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Zhao J, Wang J, Liu LW, Zheng Y, Wang B, Li WX, Yang F, Kang N, Zuo L. [The role of three-dimensional speckle tracking imaging derived parameters on predicting outcome of hypertrophic cardiomyopathy patients with MYH7 mutations]. Zhonghua Xin Xue Guan Bing Za Zhi 2020; 48:287-293. [PMID: 32370479 DOI: 10.3760/cma.j.cn112148-20190802-00451] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/02/2023]
Abstract
Objective: To evaluate the cardiac functional changes in hypertrophic cardiomyopathy(HCM) patients with β-myosin heavy chain gene (MYH7) mutations by three-dimensional (3D) speckle tracking imaging(3D-STI) and conventional echocardiography modalities, and then to explore the potential predictors of adverse cardiovascular events in these patients. Methods: A consecutive series of 192 HCM patients admitted in our center from October 2014 to October 2016 were genetically screened to identify MYH7 mutations in this retrospective study. A total of 43 HCM patients with MYH7 mutations were enrolled. The patients were divided into events group(n=13) and no event group(n=30) according to the presence or absence of adverse cardiovascular events(primary and secondary endpoints). All patients were followed up to January 2019 after comprehensive evaluation of 3D-STI, two-dimensional and Doppler echocardiography. The adverse cardiovascular events were recorded. Results: The median follow up time was 1 012 (812, 1 330) days. During follow-up, 13 patients (30.2%) reached endpoints: 6 cases of the primary endpoints(2 cases of sudden cardiac death(SCD), 3 cases of survival after defibrillation, and 1 case of appropriate implantable cardioverter-defibrillator(ICD) discharge); 7 cases of the second endpoints(5 cases of heart failure hospitalization, 1 case of syncope and cardioversion due to supraventricular tachycardia, and 1 case of end-stage HCM). Patients with adverse cardiovascular events had higher prevalence of syncope and risk of SCD, enlarged left atrial volume index(LAVI) and reduced 3D left ventricular global longitudinal train (3D-GLS), as compared to those without adverse events(all P<0.05). The multivariate Cox regression analysis showed that reduced 3D-GLS(HR=0.814, 95%CI 0.663-0.999, P=0.049) was an independent predictor for adverse cardiovascular events. The cutoff value of 3D-GLS≤13.67% was linked with significantly increased risk of adverse cardiovascular events in this patient cohort(AUC=0.753, 95%CI 0.558-0.948, sensitivity 86%, specificity 69%, P<0.05). The Kaplan-Meier analysis indicated that the patients with the 3D-GLS≤ 13.67% faced higher risk of death than those with 3D-GLS>13.67%. Conclusion: 3D-GLS is useful on predicting adverse cardiovascular events in HCM patients with MYH7 mutations.
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Affiliation(s)
- J Zhao
- Air Force Medical University, Xi'an 710032, China
| | - J Wang
- Department of Ultrasound, Xijing Hospital, Air Force Medical University, Xi'an 710032, China
| | - L W Liu
- Department of Ultrasound, Xijing Hospital, Air Force Medical University, Xi'an 710032, China
| | - Y Zheng
- Department of Ultrasound, Xi'an Central Hospital, Xi'an 710003, China
| | - B Wang
- Department of Ultrasound, Xijing Hospital, Air Force Medical University, Xi'an 710032, China
| | - W X Li
- Department of Ultrasound, Xijing Hospital, Air Force Medical University, Xi'an 710032, China
| | - F Yang
- Department of Ultrasound, Xijing Hospital, Air Force Medical University, Xi'an 710032, China
| | - N Kang
- Department of Ultrasound, Xijing Hospital, Air Force Medical University, Xi'an 710032, China
| | - L Zuo
- Department of Ultrasound, Xijing Hospital, Air Force Medical University, Xi'an 710032, China
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Johal K, Kang N. Intra-operative marking of the cartilage for otoplasty: a technical tip. Ann R Coll Surg Engl 2020; 102:313-314. [PMID: 32003573 DOI: 10.1308/rcsann.2020.0011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Affiliation(s)
- K Johal
- Royal Free London NHS Foundation Trust, UK
| | - N Kang
- Royal Free London NHS Foundation Trust, UK
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30
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Kaur S, Jones T, Ward M, Kang N, Ruygrok P. 170 Subcellular Distribution of Epac 2 in Relation to Key Excitation-Contraction Coupling Proteins in Human Atrial Tissue. Heart Lung Circ 2020. [DOI: 10.1016/j.hlc.2020.09.177] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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Wang LB, Pan D, Huang GY, Zhao J, Kang N, Xu HQ. Crossover from Coulomb blockade to ballistic transport in InAs nanowire devices. Nanotechnology 2019; 30:124001. [PMID: 30566928 DOI: 10.1088/1361-6528/aaf9d4] [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
We report on the observation of a crossover from the single electron Coulomb blockade regime to the ballistic transport in individual InAs semiconducting nanowire devices. The InAs nanowires studied here were grown by molecular-beam epitaxy (MBE), which provides a clean system to study the intrinsic electrons transport in a quasi-one-dimensional system. Quantized conductance plateaus are observed for an InAs nanowire-based device by changing the Fermi level with a global back gate at low temperature, suggesting the ballistic transport of electrons. Further lowering the temperature, we observe the Coulomb blockade phenomenon with the formation of the quantum dot between the two normal metal contacts. By increasing the electron density, the characteristic Fabry-Pérot oscillations are observed, which further provides evidence for the ballistic nature of transport in the InAs nanowire device. Our observations indicate that high-quality InAs nanowires grown by MBE behave as clean quantum wires at low temperatures, which enables us to investigate novel phenomena in the quasi-one-dimensional system.
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Affiliation(s)
- L B Wang
- Beijing Key Laboratory of Quantum Devices, Key Laboratory for the Physics and Chemistry of Nanodevices and Department of Electronics, Peking University, Beijing 100871, People's Republic of China
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Sun K, Cao W, Hu L, Fu W, Gong J, Kang N, Dai C. Symbiotic fungal endophytePhomopsis liquidambari-rice system promotes nitrogen transformation by influencing below-ground straw decomposition in paddy soil. J Appl Microbiol 2018; 126:191-203. [DOI: 10.1111/jam.14111] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/24/2017] [Revised: 08/28/2018] [Accepted: 09/18/2018] [Indexed: 01/08/2023]
Affiliation(s)
- K. Sun
- Jiangsu Key Laboratory for Microbes and Functional Genomics; Jiangsu Engineering and Technology Research Center for Industrialization of Microbial Resources; College of Life Sciences; Nanjing Normal University; Nanjing China
| | - W. Cao
- Jiangsu Key Laboratory for Microbes and Functional Genomics; Jiangsu Engineering and Technology Research Center for Industrialization of Microbial Resources; College of Life Sciences; Nanjing Normal University; Nanjing China
| | - L.Y. Hu
- Jiangsu Key Laboratory for Microbes and Functional Genomics; Jiangsu Engineering and Technology Research Center for Industrialization of Microbial Resources; College of Life Sciences; Nanjing Normal University; Nanjing China
| | - W.Q. Fu
- Jiangsu Key Laboratory for Microbes and Functional Genomics; Jiangsu Engineering and Technology Research Center for Industrialization of Microbial Resources; College of Life Sciences; Nanjing Normal University; Nanjing China
| | - J.H. Gong
- Jiangsu Key Laboratory for Microbes and Functional Genomics; Jiangsu Engineering and Technology Research Center for Industrialization of Microbial Resources; College of Life Sciences; Nanjing Normal University; Nanjing China
| | - N. Kang
- Jiangsu Key Laboratory for Microbes and Functional Genomics; Jiangsu Engineering and Technology Research Center for Industrialization of Microbial Resources; College of Life Sciences; Nanjing Normal University; Nanjing China
| | - C.C. Dai
- Jiangsu Key Laboratory for Microbes and Functional Genomics; Jiangsu Engineering and Technology Research Center for Industrialization of Microbial Resources; College of Life Sciences; Nanjing Normal University; Nanjing China
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Han F, Chen YQ, Wu B, Kang N, Zhang SY. [Occupational health risk assessment of coal dust in coal industry chain]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2018; 36:291-294. [PMID: 29996254 DOI: 10.3760/cma.j.issn.1001-9391.2018.04.015] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To grasp the present situation of occupational hazards of coal dust in our country, understand our country coal dust workers' occupational health risks, provide information based on evidence and analysis for the government and organize to effectively deal with the current status of high coal workers pneumoconiosis incidence in China, and protect coal dust workers' occupational health. Methods: The research object is the " mining-transportation-use" of coal industrial chain, referring to 33 units. Use field investigation to obtain the coal dust exposure, dust prevention measures and the occupational health data of study object. Use quantitative evaluation method of International council on mining and metals occupational health risk assessment model (ICMM method) and occupational hazard risk index method (index method) , with coal workers pneumoconiosis as health outcomes, to evaluate the coal dust occupational health risks of coal industrial chain. Results: The free silica content of partial coal dust in China is more than 10%, and even to 19.5%. coal dust concentration in workplaces, such as excavating system of dust coal mining (total dust: 22.1~46.5 mg/m(3), respiratory dust: 8.4~17.7 mg/m(3)) , dumper (total dust: 25.2 mg/m(3), respiratory dust: 6.9 mg/m(3)) , transfer tower (total dust: 35.4 mg/m(3)) of coal transportation and belt coal plough device of coal use (total dust: 36.3 mg/m(3), respiratory dust: 14.0 mg/m(3)) , are much higher than those in other workplaces, and coal dust concentration of workers in these places (2.6~9.3 mg/m(3)) are much higher than those in other places, which are statistically significant. ICMM method evaluation results show that the risk value of excavating system is between 504~1 089, and the risk value of comprehensive mining system is between 347~2 040, which are far statistically significant higher than that of other systems. Index method evaluation results (excavating system risk value between 3.1~9.7, fully mechanized system risk value between 3.7~9.3) , are basically identical with ICMM method (correlation coefficient r=0.857, P<0.01) . The new cases of coal worker pneumoconiosis are distributed in three post of coal mining, excavating and coal mine mixing. Conclusion: Coal-dust hazards are widely distributed in the coal "mining, transportation, and use" industrial chain, which of the underground coal mine is as serious as intolerable, meanwhile the risk of other industrial chain is basically can tolerable. The high coal dust concentration and the high risk of coal dust occupational hazard are concentrated in the excavating system and the comprehensive mining system. It is recommended to start the study on risk assessment and risk response of coal dust health hazard at the national level, and the occupational exposure limit of coal dust should be established according to the content of free silica.
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Affiliation(s)
- F Han
- The National Institute of Occupational Health and Poison Control, Chinese Center for Disease Control and Prevention, Beijing, 100050, China
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Kim S, Kang N, Kim B, Park C, Kim Y. P2.03-16 TGF-β Induced EMT and Stemness Characteristics are Associated with Epigenetic Regulation in Lung Cancer. J Thorac Oncol 2018. [DOI: 10.1016/j.jtho.2018.08.1203] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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35
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Fang W, Wang Y, Pang L, Gu Z, Wei Y, Liu Y, Zhang P, Chen C, Zhou X, Liu Y, Chen K, Ding J, Han Y, Li Y, Yu Z, Liu Y, Fu J, Shen Y, Wei Y, Li Y, Liang G, Chen K, Fu H, Chen H, Yao S, Cui Y, Xin Y, Zhang R, Kang N, Tan L, Ding J, Wang H, Chen G, Wu J, Chen C, Zheng W, Pang L, Wang F, Liu Y, Lin Q, Liu Y, Wu Y, Fang W, Zhang J, Shen Y, Wang C, Zhu L, Gu Z, Han Y, Peng L, Fu J, Liu Q, Yu Z, Yue J, Zhang P, Chen Y, Wang Y, Geng Y, Zhou X, Zhao H. Lymph node metastasis in thymic malignancies: A Chinese multicenter prospective observational study. J Thorac Cardiovasc Surg 2018; 156:824-833.e1. [DOI: 10.1016/j.jtcvs.2018.04.049] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/17/2017] [Revised: 03/24/2018] [Accepted: 04/02/2018] [Indexed: 11/28/2022]
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Wang J, Zhao J, Yang F, Kang N, Li WX, Zuo L, Liu L. P2587The role of three-dimensional speckle tracking imaging in risk stratification and prognosis in hypertrophic cardiomyopathy. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.p2587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- J Wang
- Fourth Military Medical University, Department of Ultrasound, Xian, China People's Republic of
| | - J Zhao
- Fourth Military Medical University, Department of Ultrasound, Xian, China People's Republic of
| | - F Yang
- Fourth Military Medical University, Department of Ultrasound, Xian, China People's Republic of
| | - N Kang
- Fourth Military Medical University, Department of Ultrasound, Xian, China People's Republic of
| | - W X Li
- Fourth Military Medical University, Department of Ultrasound, Xian, China People's Republic of
| | - L Zuo
- Fourth Military Medical University, Department of Ultrasound, Xian, China People's Republic of
| | - L Liu
- Fourth Military Medical University, Department of Ultrasound, Xian, China People's Republic of
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Zhang GQ, Kang N, Li JY, Lin L, Peng H, Liu Z, Xu HQ. Low-field magnetotransport in graphene cavity devices. Nanotechnology 2018; 29:205707. [PMID: 29509145 DOI: 10.1088/1361-6528/aab478] [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
Confinement and edge structures are known to play significant roles in the electronic and transport properties of two-dimensional materials. Here, we report on low-temperature magnetotransport measurements of lithographically patterned graphene cavity nanodevices. It is found that the evolution of the low-field magnetoconductance characteristics with varying carrier density exhibits different behaviors in graphene cavity and bulk graphene devices. In the graphene cavity devices, we observed that intravalley scattering becomes dominant as the Fermi level gets close to the Dirac point. We associate this enhanced intravalley scattering to the effect of charge inhomogeneities and edge disorder in the confined graphene nanostructures. We also observed that the dephasing rate of carriers in the cavity devices follows a parabolic temperature dependence, indicating that the direct Coulomb interaction scattering mechanism governs the dephasing at low temperatures. Our results demonstrate the importance of confinement in carrier transport in graphene nanostructure devices.
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Affiliation(s)
- G Q Zhang
- Beijing Key Laboratory of Quantum Devices, Key Laboratory for the Physics and Chemistry of Nanodevices and Department of Electronics, Peking University, Beijing 100871, People's Republic of China
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Kang N, Zhang R, Ge W, Si P, Jiang M, Huang Y, Fang Y, Yao L, Wu K. Major complications of minimally invasive Ivor Lewis oesophagectomy using the purse string-stapled anastomotic technique in 215 patients with oesophageal carcinoma. Interact Cardiovasc Thorac Surg 2018; 27:708-713. [PMID: 29718251 DOI: 10.1093/icvts/ivy124] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2017] [Accepted: 03/21/2018] [Indexed: 01/07/2023] Open
Affiliation(s)
- Ningning Kang
- Department of Thoracic Surgery, 1st Affiliated Hospital of Anhui Medical University, Hefei City, China
| | - Renquan Zhang
- Department of Thoracic Surgery, 1st Affiliated Hospital of Anhui Medical University, Hefei City, China
| | - Wei Ge
- Department of Thoracic Surgery, 1st Affiliated Hospital of Anhui Medical University, Hefei City, China
| | - Panpan Si
- Department of Thoracic Surgery, 1st Affiliated Hospital of Anhui Medical University, Hefei City, China
| | - Menglong Jiang
- Department of Thoracic Surgery, 1st Affiliated Hospital of Anhui Medical University, Hefei City, China
| | - Yunlong Huang
- Department of Thoracic Surgery, 1st Affiliated Hospital of Anhui Medical University, Hefei City, China
| | - Yanxin Fang
- Department of Thoracic Surgery, 1st Affiliated Hospital of Anhui Medical University, Hefei City, China
| | - Long Yao
- Department of Thoracic Surgery, 1st Affiliated Hospital of Anhui Medical University, Hefei City, China
| | - Kaiming Wu
- Department of Thoracic Surgery, 1st Affiliated Hospital of Anhui Medical University, Hefei City, China
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Li WX, Liu LW, Wang J, Zuo L, Yang F, Kang N, Lei CH. [Predicting value of 2014 European guidelines risk prediction model for sudden cardiac death (HCM Risk-SCD) in Chinese patients with hypertrophic cardiomyopathy]. Zhonghua Xin Xue Guan Bing Za Zhi 2017; 45:1033-1038. [PMID: 29325362 DOI: 10.3760/cma.j.issn.0253-3758.2017.12.006] [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: 06/07/2023]
Abstract
Objective: To evaluate the predicting value of the 2014 European Society of Cardiology (ESC) guidelines risk prediction model for sudden cardiac death (HCM Risk-SCD) in Chinese patients with hypertrophic cardiomyopathy (HCM), and to explore the predictors of adverse cardiovascular events in Chinese HCM patients. Methods: The study population consisted of a consecutive 207 HCM patients admitted in our center from October 2014 to October 2016. All patients were followed up to March 2017. The 5-year SCD probability of each patient was estimated using HCM Risk-SCD model based on electrocardiogram, echocardiography and cardiac magnetic resonance (CMR) examination results. The primary, second, and composite endpoints were recorded. The primary endpoint included SCD and appropriate ICD therapy, identical to the HCM Risk-SCD endpoint. The second endpoint included acute myocardial infarction, hospitalization for heart failure, thrombus embolism and end-stage HCM. The composite endpoint was either the primary or the second endpoint. Patients were divided into the 3 categories according to 5-year SCD probability assessed by HCM Risk-SCD model: low risk group<4%,intermediate risk group ≥4% to<6%, and high risk group≥6%. Results: (1) Prevalence of endpoints: All 207 HCM patients completed the follow-up (350 (230, 547) days). During follow-up, 8 (3.86%) patients reached the primary endpoints (3 cases of SCD, 3 cases of survival after defibrillation, and 2 cases of appropriate ICD discharge); 21 (10.14%) patients reached the second endpoints (1 case of acute myocardial infarction, 16 cases of heart failure hospitalization, 2 cases of thromboembolism, and 2 cases of end-stage HCM). (2) Predicting value of HCM Risk-SCD model: Patients with primary endpoints had higher prevalence of syncope and intermediate-high risk of 5-year SCD, as compared to those without primary endpoints (both P<0.05). (3) Predicting value of HCM Risk-SCD model: The low risk group included 122 patients (59%), the intermediate risk group 42 (20%), and the high risk group 43 (21%). There was a clear trend towards to higher heart rate, higher values of PTF(V1) and plane QRS-T angle, higher left ventricular mass index (LVMI), elevated maximal left ventricular outflow tract pressure gradient (LVOT-PGmax), enlarged left atrial dimension(LAD) and volume index (LAVI), reduced systolic mitral annular velocity (s'), and higher late gadolinium enhancement (LGE) volume and mass in patients with high risk of 5-year of SCD, as compared to those with low-intermediate risk (all P<0.05). Moreover, 5-year SCD probability was positively correlated with heart rate, plane QRS-T angle, LVMI, LAVI, LGE%, and negatively correlated with s'(r=0.161, P=0.019; r=0.669, P=0.001; r=0.206, P=0.004; r=0.284, P=0.000; r=0.351, P=0.000; r= -0.245, P=0.001; respectively). (4) LAD, LAVI, e' and s' were independent predictors for poor outcomes. HCM patients with LAD≥39 mm, LAVI≥49.6 ml/m(2), e'≤6.5 cm/s and s'≤6.6 cm/s were more likely to have adverse cardiovascular events (AUC 0.702, 95%CI 0.604-0.799, P=0.001; AUC 0.700, 95%CI 0.567-0.833, P=0.001; AUC 0.716, 95%CI 0.616-0.817, P=0.000; AUC 0.764, 95%CI 0.676-0.853, P=0.000,respectively). Conclusions: The HCM Risk-SCD model is of value in predicting SCD for Chinese HCM patients. The plane QRS-T angle and LGE% are the best predictors of 5-year SCD risk in Chinese HCM patients. Moreover, conventional echocardiographic parameters, including LAD, LAVI, e' and s', are useful to predict adverse cardiovascular events among Chinese HCM patients.
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Affiliation(s)
- W X Li
- Department of Ultrasound, Xijing Hospital Affiliated to Fourth Military Medical University, Xi'an 710032, China
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Affiliation(s)
- A Abood
- Department of Plastic, Reconstructive & Burns Surgery, Mount Vernon Hospital, Northwood HA6 2RN, UK.
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Chen XL, Hai Y, Guan L, Liu YZ, Yang JC, Su QJ, Kang N, Meng XL, Yang L, Wang Y. [Topping-off surgery versus double-segment fusion for treatment of lumbar degenerative disease with mid-long term follow-up]. Zhonghua Yi Xue Za Zhi 2017; 97:857-863. [PMID: 28355743 DOI: 10.3760/cma.j.issn.0376-2491.2017.11.013] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 01/01/2023]
Abstract
Objective: To compare the mid-long term clinical effect of Topping-off surgery and lumbar fusion surgery for two-segmental lumbar degenerative disease. Methods: From March 2009 to March 2012, one hundred and twenty-six consecutive patients (Topping-off surgery and two-segment PLIF surgery) were studied in Orthopedics Department, Beijing Chao-Yang Hospital, Capital Medical University.The VAS and ODI were used to assess clinical symptoms.All patients underwent flexion/extension radiographs examinations before surgery, 1, 2 years and last follow-up postoperatively.Lumbar lordosis, sacral slop, data of Coflex segment and adjacent segment (disc height index, range of motion, foraminal height, foraminal width and Pfirrmann classification of intervertebral disc in MRI) were recorded.The paired double-tailed t test was used to analyze the differences in the results from baseline to each postoperative time point.The paired double-tailed t test was used in both groups to analyze the differences in the results from baseline to each postoperative time point.The Chi-square test was used to evaluate the differences between the incidences of adjacent segment degeneration(ASD) in the groups. Logistic regression analysis was used to analyze risk factors for developing radiographic ASD. Results: In topping-off group, 60 patients, average operation time was (134.5±10.2) min. The average blood loss was (301.5±64.6) ml.In fusion group, 68 patients, average age (58.3±4.6) years.The average follow-up time was (47.5±5.1) months.The average operation time was (158.6±19.3) min (P=0.000). The average blood loss was (413.6±131.3) ml (P=0.000). Sex, age, body mass index and intervertebral disc grading were matched between the two groups.Better improvement in VAS back pain score was noted in the topping-off group over the fusion group (P=0.030). Both groups achieved good recovery in ODI and improvement in VAS leg pain and back pain scores at last follow-up postoperatively.In the Topping-off group, FH increased from 10.5 mm at baseline to 11.8 mm at 1 year after surgery (P=0.000) and then decreased mildly in the third postoperative year, while in the fusion group, showed no significant change at all postoperative time points.In the fusion group, the disc height and FW at the same segment were no significant change after first year follow-up, while ROM was significantly decreased after surgery (P=0.000). Foraminal height, foraminal width and intervertebral disc height of adjacent segment of Coflex implant level were found decreased at the end of the postoperative follow-up, while compared with preoperative data no significant difference (P>0.05). At last follow-up, eight patients (13.3%) in the Topping-off group and eighteen patients (26.5%) in the fusion group developed ASD (P=0.033). Conclusions: Topping-off surgery compared with two-segment lumbar fusion surgery can achieve a good result in cases with pre-existing mild or moderate adjacent segment degeneration, restrict the adjacent segment's range of motion and reduce the adjacent segment degeneration. Under strict indications, Topping-off surgery is an acceptable alternative to fusion surgery for the treatment of two-segment lumbar disease.
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Affiliation(s)
- X L Chen
- Department of Orthopedics, Beijing Chao-yang Hospital, Capital Medical University, Beijing 100020, China
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Wang T, Oh T, Voss J, Kang N, Pemberton J. Performance of Endocarditis-Specific Risk Scores in Surgery for Infective Endocarditis. Heart Lung Circ 2016. [DOI: 10.1016/j.hlc.2016.06.642] [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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Fan D, Kang N, Ghalamestani SG, Dick KA, Xu HQ. Schottky barrier and contact resistance of InSb nanowire field-effect transistors. Nanotechnology 2016; 27:275204. [PMID: 27232588 DOI: 10.1088/0957-4484/27/27/275204] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Understanding of the electrical contact properties of semiconductor nanowire (NW) field-effect transistors (FETs) plays a crucial role in the use of semiconducting NWs as building blocks for future nanoelectronic devices and in the study of fundamental physics problems. Here, we report on a study of the contact properties of Ti/Au, a widely used contact metal combination, when contacting individual InSb NWs via both two-probe and four-probe transport measurements. We show that a Schottky barrier of height [Formula: see text] is present at the metal-InSb NW interfaces and its effective height is gate-tunable. The contact resistance ([Formula: see text]) in the InSb NWFETs is also analyzed by magnetotransport measurements at low temperatures. It is found that [Formula: see text] in the on-state exhibits a pronounced magnetic field-dependent feature, namely it is increased strongly with increasing magnetic field after an onset field [Formula: see text]. A qualitative picture that takes into account magnetic depopulation of subbands in the NWs is provided to explain the observation. Our results provide solid experimental evidence for the presence of a Schottky barrier at Ti/Au-InSb NW interfaces and can be used as a basis for design and fabrication of novel InSb NW-based nanoelectronic devices and quantum devices.
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Affiliation(s)
- Dingxun Fan
- Key Laboratory for the Physics and Chemistry of Nanodevices and Department of Electronics, Peking University, Beijing 100871, People's Republic of China
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Kim S, Kang N, Kim Y. TGF-β induced stemness acquisition using next-generation sequencing in lung cancer. Eur J Cancer 2016. [DOI: 10.1016/s0959-8049(16)61294-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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Kang N, Kim S, Kim Y. Activation of CXCR4 by aberrant promoter demethylation in lung cancer. Eur J Cancer 2016. [DOI: 10.1016/s0959-8049(16)61291-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Kang N, Kim S, Kim Y. Hypoxia-induced angiogenesis, EMT and stem cell characteristics using next-generation sequencing in lung cancer. Eur J Cancer 2016. [DOI: 10.1016/s0959-8049(16)61286-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Abstract
MicroRNAs (abbreviated miRNAs) have been demonstrated to be involved in tumorigenesis and cancer development and proposed as promising biomarkers in cancer diagnosis. Numerous studies have observed the aberrant expression of miRNAs in esophageal cancer. However, there are some discrepant results. Thus, we conducted this meta-analysis to identify the overall accuracy of miRNAs in the diagnosis of esophageal cancer. A comprehensive literature search was conducted in PubMed and other databases using combinations of key words. The summary receiver operator characteristic curves were plotted to assess the overall diagnostic performance of miRNAs. Chi-squared and I(2) tests were used to assess the heterogeneity between studies. Additionally, we conducted subgroup and sensitivity analyses to analyze the potential sources of heterogeneity. In total, 33 studies from 12 articles were available in this meta-analysis. The pooled sensitivity, specificity, positive and negative likelihood ratio (PLR, NLR) diagnostic odds ratio, and area under the curve were 0.80, 0.80, 4.0, 0.25, 16, and 0.87, respectively. Subgroup analyses based on the sample types (saliva-, serum- and plasma-based) showed no differences in the diagnostic accuracy of each subgroup. An independent meta-analysis of eight articles was conducted to evaluate the diagnostic accuracy of miRNAs in patients with esophageal squamous cell carcinoma, with a pooled sensitivity of 0.77, specificity of 0.83, PLR of 4.4, NLR of 0.27, diagnostic odds ratio of 16, and area under the curve of 0.87. In conclusion, this meta-analysis demonstrates the feasibility of using miRNAs as non-invasive biomarkers to discriminate esophageal cancer from healthy controls. However, further high-quality studies on more clearly defined esophageal cancer patient are needed to confirm our conclusion.
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Affiliation(s)
- J Wan
- Department of Thoracic Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - W Wu
- Department of Hematology, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Y Che
- Department of Thoracic Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - N Kang
- Department of Thoracic Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - R Zhang
- Department of Thoracic Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, China
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Du J, Li JY, Kang N, Lin L, Peng H, Liu Z, Xu HQ. Probe of local impurity states by bend resistance measurements in graphene cross junctions. Nanotechnology 2016; 27:245204. [PMID: 27159926 DOI: 10.1088/0957-4484/27/24/245204] [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: 06/05/2023]
Abstract
We report on low-temperature transport measurements on four-terminal cross junction devices fabricated from high-quality graphene grown by chemical vapor deposition. At high magnetic fields, the bend resistance reveals pronounced peak structures at the quantum Hall plateau transition, which can be attributed to the edge state transport through the junctions. We further demonstrate that the bend resistance is drastically affected by the presence of local impurity states in the junction regions, and exhibits an unusual asymmetric behavior with respect to the magnetic field direction. The observations can be understood in a model taking into account the combination of the edge transport and an asymmetric scatterer. Our results demonstrate that a graphene cross junction may serve as a sensitive probe of local impurity states in graphene at the nanoscale.
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Affiliation(s)
- J Du
- Key Laboratory for the Physics and Chemistry of Nanodevices and Department of Electronics, Peking University, Beijing 100871, People's Republic of China
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Wan J, Che Y, Kang N, Zhang R. Surgical Method, Postoperative Complications, and Gastrointestinal Motility of Thoraco-Laparoscopy 3-Field Esophagectomy in Treatment of Esophageal Cancer. Med Sci Monit 2016; 22:2056-65. [PMID: 27310399 PMCID: PMC4913812 DOI: 10.12659/msm.895882] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/11/2023] Open
Abstract
Background The aim of this study was to investigate the surgical method, postoperative complications, and gastrointestinal motility of thoraco-laparoscopic esophagectomy in the treatment of esophageal cancer. Material/Methods Using random sampling method, we selected 132 esophageal cancer patients who were treated in our hospital from January 2012 to December 2014; these patients were regarded as the study group and underwent thoraco-laparoscopy 3-field surgery treatment. Another 108 esophageal cancer patients admitted to our hospital over the same period were regarded as the control group and underwent traditional open McKeown esophagectomy. Results The amount of blood loss and postoperative drainage of pleural fluid in the study group were significantly lower (P<0.05) and the time to removal of the chest tube and hospital stay were significantly shorter (P<0.05). The incidence of anastomotic fistula, vocal cord paralysis, chylothorax, and arrhythmia were significantly lower in the study group than in the control group (P<0.05). However, no significant differences in the incidence of pneumonia, atelectasis, or acute respiratory distress were detected (P>0.05). For postoperative gastrointestinal motility, first flatus time, first defecation time, and bowel tone recovery time after the operation, as well as the total amount of gastric juice draining, were reduced in the thoraco-laparoscopic esophagectomy group (P<0.05). The postoperative MTL and NO levels were higher but VIP level was lower in the thoraco-laparoscopic group (P<0.05). Conclusions Thoraco-laparoscopic esophagectomy was technically feasible and safe; it was associated with lower incidence of certain postoperative complications and had less effect on postoperative gastrointestinal motility. Skilled technique and cooperation could further shorten the operation time and might lead to better patient outcomes.
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Affiliation(s)
- Jun Wan
- Department of Thoracic Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China (mainland)
| | - Yun Che
- Department of Thoracic Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China (mainland)
| | - Ningning Kang
- Department of Thoracic Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China (mainland)
| | - Renquan Zhang
- Department of Thoracic Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, Anhui, China (mainland)
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Li S, Kang N, Fan DX, Wang LB, Huang YQ, Caroff P, Xu HQ. Coherent Charge Transport in Ballistic InSb Nanowire Josephson Junctions. Sci Rep 2016; 6:24822. [PMID: 27102689 PMCID: PMC4840339 DOI: 10.1038/srep24822] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2016] [Accepted: 04/06/2016] [Indexed: 11/09/2022] Open
Abstract
Hybrid InSb nanowire-superconductor devices are promising for investigating Majorana modes and topological quantum computation in solid-state devices. An experimental realisation of ballistic, phase-coherent superconductor-nanowire hybrid devices is a necessary step towards engineering topological superconducting electronics. Here, we report on a low-temperature transport study of Josephson junction devices fabricated from InSb nanowires grown by molecular-beam epitaxy and provide a clear evidence for phase-coherent, ballistic charge transport through the nanowires in the junctions. We demonstrate that our devices show gate-tunable proximity-induced supercurrent and clear signatures of multiple Andreev reflections in the differential conductance, indicating phase-coherent transport within the junctions. We also observe periodic modulations of the critical current that can be associated with the Fabry-Pérot interference in the nanowires in the ballistic transport regime. Our work shows that the InSb nanowires grown by molecular-beam epitaxy are of excellent material quality and hybrid superconducting devices made from these nanowires are highly desirable for investigation of the novel physics in topological states of matter and for applications in topological quantum electronics.
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Affiliation(s)
- S Li
- Key Laboratory for the Physics and Chemistry of Nanodevices and Department of Electronics, Peking University, Beijing 100871, China
| | - N Kang
- Key Laboratory for the Physics and Chemistry of Nanodevices and Department of Electronics, Peking University, Beijing 100871, China
| | - D X Fan
- Key Laboratory for the Physics and Chemistry of Nanodevices and Department of Electronics, Peking University, Beijing 100871, China
| | - L B Wang
- Key Laboratory for the Physics and Chemistry of Nanodevices and Department of Electronics, Peking University, Beijing 100871, China
| | - Y Q Huang
- Key Laboratory for the Physics and Chemistry of Nanodevices and Department of Electronics, Peking University, Beijing 100871, China
| | - P Caroff
- I.E.M.N., UMR CNRS 8520, Avenue Poincaré, BP 60069, F-59652 Villeneuve d'Ascq, France
| | - H Q Xu
- Key Laboratory for the Physics and Chemistry of Nanodevices and Department of Electronics, Peking University, Beijing 100871, China.,Division of Solid State Physics, Lund University, Box 118, S-221 00 Lund, Sweden
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