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Wu SJ, Fu XF, Zhang DH, Sun YF, Lu X, Lin FL, Meng L, Chen XL, Lu CZ. Thermally Activated Delayed Fluorescence with Nanosecond Emission Lifetimes and Minor Concentration Quenching: Achieving High-Performance Nondoped and Doped Blue OLEDs. Adv Mater 2024:e2401724. [PMID: 38575151 DOI: 10.1002/adma.202401724] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/01/2024] [Revised: 03/27/2024] [Indexed: 04/06/2024]
Abstract
Simultaneously achieving a high photoluminescence quantum yield (PLQY), ultrashort exciton lifetime, and suppressed concentration quenching in thermally activated delayed fluorescence (TADF) materials is desirable yet challenging. Here, a novel acceptor-donor-acceptor type TADF emitter, namely, 2BO-sQA, wherein two oxygen-bridged triarylboron (BO) acceptors are arranged with cofacial alignment and positioned nearly orthogonal to the rigid dispirofluorene-quinolinoacridine (sQA) donor is reported. This molecular design enables the compound to achieve highly efficient (PLQYs up to 99%) and short-lived (nanosecond-scale) blue TADF with effectively suppressed concentration quenching in films. Consequently, the doped organic light-emitting diodes (OLEDs) base on 2BO-sQA achieve exceptional electroluminescence performance across a broad range of doping concentrations, maintaining maximum external quantum efficiencies (EQEs) at over 30% for doping concentrations ranging from 10 to 70 wt%. Remarkably, the nondoped blue OLED achieves a record-high maximum EQE of 26.6% with a small efficiency roll-off of 14.0% at 1000 candelas per square meter. By using 2BO-sQA as the sensitizer for the multiresonance TADF emitter ν-DABNA, TADF-sensitized fluorescence OLEDs achieve high-efficiency deep-blue emission. These results demonstrate the feasibility of this molecular design in developing TADF emitters with high efficiency, ultrashort exciton lifetime, and minimal concentration quenching.
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Affiliation(s)
- Shao-Jie Wu
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, China
- Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials, Xiamen Institute of Rare Earth Materials, Haixi Institutes, Chinese Academy of Sciences, Xiamen, Fujian, 361021, China
- College of Chemistry, Fuzhou University, Fuzhou, Fujian, 350108, China
| | - Xi-Feng Fu
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, China
- Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials, Xiamen Institute of Rare Earth Materials, Haixi Institutes, Chinese Academy of Sciences, Xiamen, Fujian, 361021, China
- College of Chemistry, Fuzhou University, Fuzhou, Fujian, 350108, China
| | - Dong-Hai Zhang
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, China
- Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials, Xiamen Institute of Rare Earth Materials, Haixi Institutes, Chinese Academy of Sciences, Xiamen, Fujian, 361021, China
| | - Yu-Fu Sun
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, China
- Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials, Xiamen Institute of Rare Earth Materials, Haixi Institutes, Chinese Academy of Sciences, Xiamen, Fujian, 361021, China
| | - Xin Lu
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, China
- Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials, Xiamen Institute of Rare Earth Materials, Haixi Institutes, Chinese Academy of Sciences, Xiamen, Fujian, 361021, China
| | - Fu-Lin Lin
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, China
- Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials, Xiamen Institute of Rare Earth Materials, Haixi Institutes, Chinese Academy of Sciences, Xiamen, Fujian, 361021, China
| | - Lingyi Meng
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, China
- Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials, Xiamen Institute of Rare Earth Materials, Haixi Institutes, Chinese Academy of Sciences, Xiamen, Fujian, 361021, China
| | - Xu-Lin Chen
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, China
- Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials, Xiamen Institute of Rare Earth Materials, Haixi Institutes, Chinese Academy of Sciences, Xiamen, Fujian, 361021, China
- College of Chemistry, Fuzhou University, Fuzhou, Fujian, 350108, China
- Fujian Science and Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, Fujian, 350108, China
| | - Can-Zhong Lu
- State Key Laboratory of Structural Chemistry, Fujian Institute of Research on the Structure of Matter, Chinese Academy of Sciences, Fuzhou, Fujian, 350002, China
- Xiamen Key Laboratory of Rare Earth Photoelectric Functional Materials, Xiamen Institute of Rare Earth Materials, Haixi Institutes, Chinese Academy of Sciences, Xiamen, Fujian, 361021, China
- College of Chemistry, Fuzhou University, Fuzhou, Fujian, 350108, China
- Fujian Science and Technology Innovation Laboratory for Optoelectronic Information of China, Fuzhou, Fujian, 350108, China
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Wu S, Yao H, Li Z, Shi P, Tang X, Zhang W, Ding X, Li S. 'Case of the Month' from Zhongnan Hospital, Wuhan University, China: mucinous cystadenoma of the renal pelvis. BJU Int 2024; 133:403-406. [PMID: 38303552 DOI: 10.1111/bju.16275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/03/2024]
Affiliation(s)
- ShaoJie Wu
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Hongmei Yao
- Department of Ophthalmology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - ZhiLong Li
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Peng Shi
- Department of Urology, Xianning First People's Hospital, Xianning, China
| | - XiaoYu Tang
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Weibing Zhang
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Xiegang Ding
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Sheng Li
- Cancer Precision Diagnosis and Treatment and Translational Medicine Hubei Engineering Research Center, Zhongnan Hospital of Wuhan University, Wuhan, China
- Department of Biological Repositories, Zhongnan Hospital of Wuhan University, Wuhan, China
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Wang LP, Jiang LM, Wang SJ, Wu SJ, Huang ZQ, Shan PR, Huang WJ, Su L. [Animal study on left bundle branch current of injury and anatomic location of leads in His-purkinje conduction system pacing]. Zhonghua Xin Xue Guan Bing Za Zhi 2023; 51:1175-1180. [PMID: 37963753 DOI: 10.3760/cma.j.cn112148-20231007-00208] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 11/16/2023]
Abstract
Objective: Explore the relationship between tip of the left bundle branch pacing lead and anatomic location of left bundle branch as well as the mechanism of left bundle branch current of injury. To clarify the clinical value of left bundle branch current of injury during operation. Methods: The pacing leads were implanted in the hearts of two living swines. Intraoperative electrophysiological study confirmed that the left bundle branch or only the deep left ventricular septum was captured at low output. Immediately after operation, the gross specimen of swine hearts was stained with iodine to observe the gross distribution of His-purkinje conduction system on the left ventricular endocardium and its relationship with the leads. Subsequently, the swine hearts were fixed with formalin solution, and the pacing leads were removed after the positions were marked. The swine hearts were then sectioned and stained with Masson and Goldner trichrome, and the relationship between the anatomic location of the conduction system and the tip of the lead was observed under a light microscope. Results: After iodine staining of the specimen, the His-purkinje conduction system was observed with the naked eye in a net-like distribution, and the lead tip was screwed deeply and fixed in the left bundle branch area of the left ventricular subendocardium in the ventricular septum. Masson and Goldner trichrome staining showed that left bundle branch pacing lead directly passed through the left bundle branch when there was left bundle branch potential with left bundle branch current of injury, while it was not directly contact the left bundle branch when there was left bundle branch potential without left bundle branch current of injury. Conclusion: The left bundle branch current of injury observed on intracardiac electrocardiogram during His-purkinje conduction system pacing suggests that the pacing lead directly contacted the conduction bundle or its branches, therefore, the captured threshold was relatively low. Left bundle branch current of injury can be used as an important anatomic and electrophysiological evidence of left bundle branch capture.
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Affiliation(s)
- L P Wang
- Department of Cardiology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - L M Jiang
- Department of Cardiology, Sir Run Run Shaw Hospital, Affiliated Hospital of Medical School of Zhejiang University, Shaoxing 312399, China
| | - S J Wang
- Department of Cardiology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - S J Wu
- Department of Cardiology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - Z Q Huang
- Department of Cardiology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - P R Shan
- Department of Cardiology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - W J Huang
- Department of Cardiology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
| | - L Su
- Department of Cardiology, the First Affiliated Hospital of Wenzhou Medical University, Wenzhou 325000, China
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Wu SJ, Zheng QT, Zhao Y, Feng SJ. Prediction and control of elevated temperatures within landfills under aeration and recirculation based on the thermal non-equilibrium model. J Environ Manage 2023; 345:118873. [PMID: 37657291 DOI: 10.1016/j.jenvman.2023.118873] [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: 06/24/2023] [Revised: 08/13/2023] [Accepted: 08/26/2023] [Indexed: 09/03/2023]
Abstract
Aeration is an effective approach to sustainable landfilling but may lead to elevated temperatures within landfills, resulting in landfill fires or explosions. Therefore, aeration is usually combined with leachate recirculation to control the elevated temperatures within landfills. To predict landfill temperatures during aeration and recirculation, a local thermal non-equilibrium model is developed considering the heat generation of biodegradation, the heat removal due to evaporation and leachate-gas flow, and the effects of the capillary. The solver is implemented in OpenFOAM based on the finite volume method and validated against a waste-column experiment and an in-situ aeration test. The simulation results demonstrate that the assumption of local thermal equilibrium will distinctly overestimate the temperature, maximally by 15 °C in the studied case. The model is then used to simulate a typical aerobic landfill unit to investigate the formation of explosive gas mixtures and elevated temperatures under different operating conditions. The simulation results of gas composition suggest that aeration will not result in explosive gas within landfills. A reasonable recirculation method for temperature control with corresponding operating parameters under a group of values of aeration pressure (2000-4000 Pa) and recirculation rate (0.0001-0.0008 m/s) are proposed, which can provide some guides for the design of an aeration and recirculation combined system. For a given total volume of added leachate, a higher recirculation rate does not always mean better cooling, and the cooling effect of continuous recirculation is better than that of intermittent recirculation.
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Affiliation(s)
- Shao-Jie Wu
- Department of Geotechnical Engineering, Tongji University, Shanghai, 200092, China; Department of Mechanical, Aerospace and Civil Engineering, School of Engineering, The University of Manchester, Manchester, M13 9PL, United Kingdom
| | - Qi-Teng Zheng
- Department of Geotechnical Engineering, Tongji University, Shanghai, 200092, China.
| | - Yong Zhao
- Department of Geotechnical Engineering, Tongji University, Shanghai, 200092, China
| | - Shi-Jin Feng
- Department of Geotechnical Engineering, Tongji University, Shanghai, 200092, China; Key Laboratory of Geotechnical and Underground Engineering of the Ministry of Education, Tongji University, Shanghai, 200092, China
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Wu SJ, Zhang C, Wu M, Ruan DD, Zhang YP, Lin B, Tang Y, Chen X, Wang C, Pan HH, Zhu QG, Luo JW, Ye LF, Fang ZT. Pharmarcomechanical thrombectomy combined with transluminal balloon angioplasty for treating transplant renal vein thrombosis. Sci Rep 2023; 13:17303. [PMID: 37828079 PMCID: PMC10570330 DOI: 10.1038/s41598-023-44514-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2023] [Accepted: 10/09/2023] [Indexed: 10/14/2023] Open
Abstract
Renal vein thrombosis (RVT) is a rare vascular complication that occurs after renal transplantation and usually results in irreversible kidney damage and graft loss. We report the case of a patient who underwent right iliac fossa allogeneic kidney transplantation and developed RVT combined with ipsilateral thrombosis from the popliteal to the femoral veins, with extension to the common iliac veins, 4 months after transplantation. Under unfractionated heparin anticoagulation, an Aegisy (Life Tech Scientific Co., Ltd., Shenzhen, China) vena cava filter was placed to prevent pulmonary embolism. Percutaneous mechanical thrombectomy combined with balloon angioplasty was performed to aspirate the thrombus and successfully dilate the narrow venous lumen. The patient's renal function was restored postoperatively. Ultrasonography showed the allograft and ipsilateral lower extremity deep veins to be fluent and patent. To conclude, in patients with RVT after renal transplantation, percutaneous mechanical thrombectomy in conjunction with balloon angioplasty can be performed with desirable outcomes and no severe adverse effects. This method reduces the risk of bleeding from exposure to systemic intravenous thrombolysis and avoids surgery-associated trauma.
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Affiliation(s)
- Shao-Jie Wu
- Fujian Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, 350001, China
- Department of Interventional Radiology, Fujian Provincial Hospital, Fuzhou, 350001, China
| | - Chi Zhang
- Fujian Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, 350001, China
- Department of Urology, Fujian Provincial Hospital, Fuzhou, 350001, China
| | - Min Wu
- Fujian Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, 350001, China
| | - Dan-Dan Ruan
- Fujian Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, 350001, China
| | - Yan-Ping Zhang
- Fujian Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, 350001, China
| | - Bin Lin
- Fujian Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, 350001, China
| | - Yi Tang
- Fujian Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, 350001, China
- Department of Interventional Radiology, Fujian Provincial Hospital, Fuzhou, 350001, China
| | - Xin Chen
- Fujian Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, 350001, China
- Pathology Department, Fujian Provincial Hospital, Fuzhou, 350001, China
| | - Chen Wang
- Fujian Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, 350001, China
- Pathology Department, Fujian Provincial Hospital, Fuzhou, 350001, China
| | - Hong-Hong Pan
- Fujian Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, 350001, China
- Department of Urology, Fujian Provincial Hospital, Fuzhou, 350001, China
| | - Qing-Guo Zhu
- Fujian Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, 350001, China
- Department of Urology, Fujian Provincial Hospital, Fuzhou, 350001, China
| | - Jie-Wei Luo
- Fujian Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, 350001, China.
- Department of Traditional Chinese Medicine, Fujian Provincial Hospital, Fuzhou, 350001, China.
| | - Lie-Fu Ye
- Fujian Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, 350001, China.
- Department of Urology, Fujian Provincial Hospital, Fuzhou, 350001, China.
| | - Zhu-Ting Fang
- Fujian Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, 350001, China.
- Department of Interventional Radiology, Fujian Provincial Hospital, Fuzhou, 350001, China.
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Pan X, Wu SJ, Tang Y, Zhou YF, Luo JW, Fang ZT. Safety and Efficacy of Transarterial Chemoembolization Combined with Tyrosine Kinase Inhibitor and Immune Checkpoint Inhibitors for Unresectable Hepatocellular Carcinoma: A Single Center Experience. J Hepatocell Carcinoma 2023; 10:883-892. [PMID: 37324411 PMCID: PMC10263012 DOI: 10.2147/jhc.s404500] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Accepted: 05/30/2023] [Indexed: 06/17/2023] Open
Abstract
Purpose In China, many patients with hepatocellular carcinoma (HCC) are diagnosed at an advanced stage. Several studies have shown that triple therapy [transarterial chemoembolization (TACE) combined with tyrosine kinase inhibitors (TKIs) and immune checkpoint inhibitors (ICIs)] is beneficial for patient survival. In this study, we aimed to evaluate the efficacy of triple therapy (TACE + TKIs + ICIs) for unresectable HCC (uHCC) and the conversion rate of surgical resection (SR). The primary endpoints were objective response rate (ORR) and disease control rate (DCR) based on the modified Response Evaluation Criteria in Solid Tumors (mRECIST) and RECIST v1.1 and adverse events (AEs), while the secondary endpoint was the conversion rate of patients with uHCC treated with triple therapy followed by SR. Patients and Methods Forty-nine patients with uHCC who received triple therapy at Fujian Provincial Hospital between January 2020 and June 2022 were retrospectively included. The treatment efficacy, SR conversion rate, and associated AEs were recorded. Results Among the 49 patients enrolled, the ORRs assessed by mRECIST and RECIST v1.1 were 57.1% (24/42) and 14.3% (6/42), respectively, and the DCRs were 92.9% (39/42) and 88.1% (37/42), respectively. Seventeen (34.7%) patients met the criteria for resectable HCC and underwent resection. The median interval between the start of triple therapy and resection was 113.5 days (range 94.75 to 182 d), and the median number of TACE was 2 (range 1 to 2.5). The patients did not achieve median overall survival or median progression-free survival. Treatment-related AEs occurred in 48 (98%) patients, and 18 (36.7%) patients had grade ≥3 AEs. Conclusion Triple combination therapy resulted in a relatively high ORR and conversion resection rate following uHCC treatment.
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Affiliation(s)
- Xian Pan
- Fujian Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, People’s Republic of China
- Department of Interventional Radiology, Fujian Provincial Hospital, Fuzhou, People’s Republic of China
| | - Shao-Jie Wu
- Fujian Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, People’s Republic of China
- Department of Interventional Radiology, Fujian Provincial Hospital, Fuzhou, People’s Republic of China
| | - Yi Tang
- Fujian Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, People’s Republic of China
- Department of Interventional Radiology, Fujian Provincial Hospital, Fuzhou, People’s Republic of China
| | - Yan-Feng Zhou
- Fujian Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, People’s Republic of China
- Department of Interventional Radiology, Fujian Provincial Hospital, Fuzhou, People’s Republic of China
| | - Jie-Wei Luo
- Fujian Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, People’s Republic of China
- Department of Traditional Chinese Medicine, Fujian Provincial Hospital, Fuzhou, People’s Republic of China
| | - Zhu-Ting Fang
- Fujian Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, People’s Republic of China
- Department of Interventional Radiology, Fujian Provincial Hospital, Fuzhou, People’s Republic of China
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Wu SJ, Ruan DD, Wu QY, Tang Y, Zhang JH, Cai SL, Zhou YF, Luo JW, Fang ZT. Safety and Efficacy of Drug-Eluting Bead Transarterial Chemoembolization Combined with Lenvatinib and Anti-PD-1 Antibodies for Unresectable Hepatocellular Carcinoma: A Retrospective Analysis. J Hepatocell Carcinoma 2023; 10:807-820. [PMID: 37292114 PMCID: PMC10244613 DOI: 10.2147/jhc.s408819] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2023] [Accepted: 05/20/2023] [Indexed: 06/10/2023] Open
Abstract
Background Drug-eluting bead transarterial chemoembolization (DEB-TACE) has good efficacy in the treatment of unresectable hepatocellular carcinoma (uHCC), with a relatively high objective response rate (ORR) compared to conventional transarterial chemoembolization (cTACE). This study aimed to evaluate the safety and medium-term clinical efficacy of DEB-TACE combined with lenvatinib (LEN) plus PD-1 inhibitors as a triple therapy for the treatment of uHCC. Methods Data of patients with uHCC who received triple therapy of DEB-TACE combined with LEN plus PD-1 inhibitors from January 2019 to June 2021 were analyzed retrospectively. The study endpoints were ORR, progression-free survival (PFS), and treatment-related adverse events based on the modified Response Evaluation Criteria in Solid Tumors (mRECIST). Results Thirty-five patients were included in this study, with a median follow-up period of 15 months. The median cycle of DEB-TACE was 1, while that of all forms of TACE procedures per patient was 2. The median administration time of LEN was 7 months, and the median number of PD-1 inhibitor treatment was 4 cycles. The ORR based on mRECIST was 82.9%, disease control rate was 91.4%, and the median time to response was 7 weeks. Among these, the ORR of Barcelona Clinic Liver Cancer (BCLC) stage A reached 100%, while that of BCLC stages B and C reached 84.6% and 78.9%, respectively. The median PFS was 9 months; the mOS was not reached. Fourteen patients (40%) successfully underwent downstaging conversion and surgical resection, 32 patients (91.4%) experienced treatment-related adverse events, and no grade 5-related adverse reactions occurred. Conclusion DEB-TACE combined with LEN and PD-1 inhibitors has a high ORR and surgical conversion rate in the treatment of uHCC tumors, and the toxicity and side effects were tolerable.
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Affiliation(s)
- Shao-Jie Wu
- Fujian Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, People’s Republic of China
- Department of Interventional Radiology, Fujian Provincial Hospital, Fuzhou, People’s Republic of China
| | - Dan-Dan Ruan
- Fujian Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, People’s Republic of China
| | - Qiu-Yan Wu
- Fujian Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, People’s Republic of China
| | - Yi Tang
- Fujian Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, People’s Republic of China
- Department of Interventional Radiology, Fujian Provincial Hospital, Fuzhou, People’s Republic of China
| | - Jian-Hui Zhang
- Fujian Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, People’s Republic of China
| | - Sen-Lin Cai
- Fujian Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, People’s Republic of China
- Department of Interventional Radiology, Fujian Provincial Hospital, Fuzhou, People’s Republic of China
| | - Yan-Feng Zhou
- Fujian Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, People’s Republic of China
- Department of Interventional Radiology, Fujian Provincial Hospital, Fuzhou, People’s Republic of China
| | - Jie-Wei Luo
- Fujian Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, People’s Republic of China
- Department of Traditional Chinese Medicine, Fujian provincial hospital, Fuzhou, People’s Republic of China
| | - Zhu-Ting Fang
- Fujian Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, People’s Republic of China
- Department of Interventional Radiology, Fujian Provincial Hospital, Fuzhou, People’s Republic of China
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Zheng QT, Yang CBX, Feng SJ, Wu SJ, Zhang XL. Influence mechanism of thermally enhanced phase change on heat transfer and soil vapour extraction. J Contam Hydrol 2023; 257:104202. [PMID: 37295261 DOI: 10.1016/j.jconhyd.2023.104202] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/09/2022] [Revised: 05/13/2023] [Accepted: 05/22/2023] [Indexed: 06/12/2023]
Abstract
Thermal enhanced soil vapour extraction (T-SVE) is a remedial technique involving gas, aqueous, solid and nonaqueous phases along with mass and heat transfer. Interphase mass transfer of contaminants and water evaporation/condensation will cause the redistribution of phase saturation, eventually affecting the performance of T-SVE. In this study, a multiphase, multicompositional and nonisothermal model was developed to simulate the T-SVE treatment of contaminated soil. The model was calibrated using published data from the SVE laboratory and T-SVE field experiments. The temporal and spatial distributions of the contaminant concentrations in the four different phases, the mass transfer rates and the temperatures are presented to reveal the coupling interactions that occur between multiple fields during T-SVE. A series of parametric studies were carried out to investigate the effect of water evaporation and adsorbed/dissolved contaminants on the T-SVE performance. It was found that endothermic evaporation, exothermic condensation and the interaction between different removal paths of a contaminant played critical roles in the thermal enhancement of SVE. Ignoring them can result in significant differences in the removal efficiency values.
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Affiliation(s)
- Qi-Teng Zheng
- Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China
| | - Chun-Bai-Xue Yang
- Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China; School of Architecture and Civil Engineering, Jinggangshan University, Ji'an, Jiangxi 343009, China.
| | - Shi-Jin Feng
- Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China; Key Laboratory of Geotechnical and Underground Engineering of the Ministry of Education, Tongji University, Shanghai 200092, China
| | - Shao-Jie Wu
- Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China
| | - Xiao-Lei Zhang
- Department of Geotechnical Engineering, Tongji University, Shanghai 200092, China
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Yan X, Zhang X, Wu HH, Wu SJ, Tang XY, Liu TZ, Li S. Novel T-cell signature based on cell pair algorithm predicts survival and immunotherapy response for patients with bladder urothelial carcinoma. Front Immunol 2022; 13:994594. [PMID: 36466869 PMCID: PMC9712189 DOI: 10.3389/fimmu.2022.994594] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2022] [Accepted: 10/31/2022] [Indexed: 11/18/2022] Open
Abstract
BackgroundT-cell–T-cell interactions play important roles in the regulation of T-cells’ cytotoxic function, further impacting the anti-tumor efficacy of immunotherapy. There is a lack of comprehensive studies of T-cell types in bladder urothelial carcinoma (BLCA) and T-cell-related signatures for predicting prognosis and monitoring immunotherapy efficacy.MethodsMore than 3,400 BLCA patients were collected and used in the present study. The ssGSEA algorithm was applied to calculate the infiltration level of 19 T-cell types. A cell pair algorithm was applied to construct a T-cell-related prognostic index (TCRPI). Survival analysis was performed to measure the survival difference across TCRPI-risk groups. Spearman’s correlation analysis was used for relevance assessment. The Wilcox test was used to measure the expression level difference.ResultsNineteen T-cell types were collected; 171 T-cell pairs (TCPs) were established, of which 26 were picked out by the least absolute shrinkage and selection operator (LASSO) analysis. Based on these TCPs, the TCRPI was constructed and validated to play crucial roles in survival stratification and the dynamic monitoring of immunotherapy effects. We also explored several candidate drugs targeting TCRPI. A composite TCRPI and clinical prognostic index (CTCPI) was then constructed, which achieved a more accurate estimation of BLCA’s survival and was therefore a better choice for prognosis prediction in BLCA.ConclusionsAll in all, we constructed and validated TCRPI based on cell pair algorithms in this study, which might put forward some new insights to increase the survival estimation and clinical response to immune therapy for individual BLCA patients and contribute to the personalized precision immunotherapy strategy of BLCA.
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Affiliation(s)
- Xin Yan
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Xiao Zhang
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Hua-Hui Wu
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Shao-Jie Wu
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Xiao-Yu Tang
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
| | - Tong-Zu Liu
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
- *Correspondence: Tong-Zu Liu, ; Sheng Li,
| | - Sheng Li
- Department of Urology, Zhongnan Hospital of Wuhan University, Wuhan, China
- Department of Biological Repositories, Cancer Precision Diagnosis and Treatment and Translational Medicine Hubei Engineering Research Center, Zhongnan Hospital of Wuhan University, Wuhan, China
- *Correspondence: Tong-Zu Liu, ; Sheng Li,
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10
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Wu SJ, Shi Y, Sun K, Yuan XY, Tang S, Yu B. Potassium doping carbon nitride: Dramatically enhanced photocatalytic properties for hydroxyalkylation of quinoxalin-2(1H)‑ones with alcohol under air atmosphere. J Catal 2022. [DOI: 10.1016/j.jcat.2022.10.001] [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: 10/31/2022]
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11
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Yee TS, Choong CV, Wee LE, Goh KCM, Wu SJ, Win KMK, Ong CWM, Ng DHL. Accelerating TB diagnosis during the COVID-19 pandemic. Int J Tuberc Lung Dis 2022; 26:636-640. [PMID: 35768926 DOI: 10.5588/ijtld.21.0640] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
SETTING: The COVID-19 pandemic has caused significant disruption worldwide to economies and healthcare systems, even those with well-developed infrastructure.OBJECTIVE: To examine the effects of COVID-19 on TB diagnosis in Singapore, and to identify any factors that could facilitate early detection of TB among persons screened.DESIGN: To assess the impact of testing and diagnosis of the pandemic on TB, the number of TB-related tests from January 2018 to December 2020 were collected. We also conducted a retrospective case-control study of all adult patients admitted for COVID-19, TB or coinfection from 23 January to 31 May 2020.RESULTS: Nationwide testing for TB from 2018 to 2020 increased by 24.2%. We analysed 253 adult inpatients, of whom 107 (42.3%) were diagnosed with COVID-19, 134 (53.0%) had TB, while 12 (4.7%) had co-infection. Patients with TB were more likely to have chest X-ray abnormalities than those with COVID-19 (89.9% vs. 76.0%; P < 0.01). Patients with TB were more likely to have prolonged cough vs. those with COVID-19 infection (28 vs. 5 days; P < 0.01).CONCLUSION: Early screening for TB, even among patients with COVID-19, could lead to earlier diagnosis and treatment, thereby breaking the chain of transmission.
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Affiliation(s)
- T S Yee
- Department of Infectious Diseases, Singapore General Hospital, Singapore
| | - C V Choong
- Department of Respiratory and Critical Care Medicine, Tan Tock Seng Hospital, Singapore
| | - L E Wee
- Department of Infectious Diseases, Singapore General Hospital, Singapore
| | - K C M Goh
- Department of Microbiology, Singapore General Hospital, Singapore
| | - S J Wu
- Department of Infectious Diseases, National University Hospital, Singapore
| | - K M K Win
- National Tuberculosis Programme (STEP), National Centre for Infectious Diseases, Singapore
| | - C W M Ong
- Department of Infectious Diseases, National University Hospital, Singapore, Infectious Diseases Translational Research Programme, Department of Medicine, Yong Loo Lin School of Medicine, National University of Singapore, Singapore, Institute for Health Innovation & Technology, National University of Singapore, Singapore
| | - D H L Ng
- National Tuberculosis Programme (STEP), National Centre for Infectious Diseases, Singapore, Department of Infectious Diseases, Tan Tock Seng Hospital, Singapore
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12
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Lin JL, Lin C, Wang HL, Wu SJ, Tang Y, Yang CS, Luo JW, Chi W, Fang ZT. Splenic Artery Embolization and Splenectomy for Spontaneous Rupture of Splenic Hemangioma and Its Imaging Features. Front Cardiovasc Med 2022; 9:925711. [PMID: 35722106 PMCID: PMC9205459 DOI: 10.3389/fcvm.2022.925711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/21/2022] [Accepted: 05/17/2022] [Indexed: 12/02/2022] Open
Abstract
Background Spontaneous splenic rupture (SSR) is a rare, often life-threatening, acute abdominal injury that requires immediate diagnosis and early treatment. SSR is mainly treated surgically or conservatively. A few cases of interventional embolization for SSRs have been reported. Case Presentation A 30-year-old male patient complaining mainly of left upper abdominal pain underwent emergency abdominal computed tomography (CT) and showed enlargement of the spleen with a massive mixed-density shadow approximately 10.0 × 8.0 × 12.5 cm in size. The boundary was unclear and showed obvious progressive enhancement. Considering the intrasplenic tumor lesions with rupture and hemorrhage, the possibility of vascular tumors was high, with intraperitoneal blood and fluid accumulation. Digital subtraction angiography of the splenic arteriography and embolization of the ruptured splenic artery branches were performed. Postoperative hemoglobin progressively decreased, inflammatory indicators, such as white blood cell counts, procalcitonin (PCT), and C-reactive protein (CRP) were significantly increased, and 2 days after embolization, the patient developed severe hypoxemia, shock, pulmonary edema, and acute respiratory distress syndrome. CT re-examination 9 days after embolization showed reduced lesion absorption. After stabilization of the condition, splenectomy was performed, and postoperative platelet count increase, anticoagulant improvement, and discharge were observed. Postoperative pathological examination revealed extensive hemorrhage and necrosis, vascular tissue with abnormal hyperplasia in the surrounding area, vascular tissue in the bleeding area and outer wall (elastic fiber staining +), and local myofibroblast hyperplasia. Immunohistochemistry showed actin (SM +) and Ki67 (10% +). Conclusion SSR caused by splenic hemangioma is rare, and the choice between surgical treatment or splenic artery embolization remains dependent on the patient's hemodynamic stability and imaging findings.
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Affiliation(s)
- Jia-Li Lin
- Fujian Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, China
| | - Can Lin
- Department of Radiology, Fuzhou Second Hospital, Fuzhou, China
| | - Han-Lu Wang
- Fujian Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, China
| | - Shao-Jie Wu
- Fujian Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, China
- Department of Interventional Radiology, Fujian Provincial Hospital, Fuzhou, China
| | - Yi Tang
- Fujian Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, China
- Department of Interventional Radiology, Fujian Provincial Hospital, Fuzhou, China
| | - Chang Shun Yang
- Fujian Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, China
| | - Jie-Wei Luo
- Fujian Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, China
- *Correspondence: Jie-Wei Luo
| | - Wu Chi
- Fujian Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, China
- Emergency Department, Fujian Provincial Hospital, Fuzhou, China
- Wu Chi
| | - Zhu-Ting Fang
- Fujian Provincial Hospital, Shengli Clinical Medical College of Fujian Medical University, Fuzhou, China
- Department of Interventional Radiology, Fujian Provincial Hospital, Fuzhou, China
- Zhu-Ting Fang
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13
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Wu SJ, Liu XH, Wu W, Qian M, Li L, Zhang L, Yang HH, Guan M, Cao J, Wang YN, Ruan GR, Niu N, Liu YX. [Tocilizumab therapy for immune checkpoint inhibitor associated myocarditis: a case report]. Zhonghua Xin Xue Guan Bing Za Zhi 2022; 50:397-400. [PMID: 35399037 DOI: 10.3760/cma.j.cn112148-20210511-00412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Affiliation(s)
- S J Wu
- Department of Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - X H Liu
- Department of Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - W Wu
- Department of Cardiology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - M Qian
- Department of Neurology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - L Li
- Department of Cardiology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - L Zhang
- Department of Respiratory and Critical Care Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - H H Yang
- Department of Rheumatology and Immunology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - M Guan
- Department of Oncology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - J Cao
- Department of Radiology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Y N Wang
- Department of Radiology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - G R Ruan
- Department of Infectious Disease, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - N Niu
- Department of Nuclear Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Y X Liu
- Department of Cardiology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
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14
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Shih PJ, Wu SJ, Sung YH, Tung YT, Chang CY, Hatamie S, Dai ZX. Eye orbit effects on eyeball resonant frequencies and acoustic tonometer measurements. Sci Rep 2022; 12:4883. [PMID: 35318400 PMCID: PMC8941096 DOI: 10.1038/s41598-022-08874-x] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2021] [Accepted: 03/14/2022] [Indexed: 11/11/2022] Open
Abstract
The eye orbit has mechanical and acoustic characteristics that determine resonant frequencies and amplify acoustic signals in certain frequency ranges. These characteristics also interfere with the acoustic amplitudes and frequencies of eyeball when measured with an acoustic tonometer. A model in which a porcine eyeball was embedded in ultrasonic conductive gel in the orbit of a model skull was used to simulate an in vivo environment, and the acoustic responses of eyeballs were detected. The triggering source was a low-power acoustic speaker contacting the occipital bone, and the detector was a high-resolution microphone with a dish detecting the acoustic signals without contacting the cornea. Dozens of ex vivo porcine eyeballs were tested at various intraocular pressure levels to detect their resonant frequencies and acoustic amplitudes in their power spectra. We confirmed that the eyeballs’ resonant frequencies were proportional to intraocular pressure, but interference from orbit effects decreased the amplitudes in these resonant frequency ranges. However, we observed that the frequency amplitudes of eyeballs were correlated with intraocular pressure in other frequency ranges. We investigated eye orbit effects and demonstrated how they interfere with the eyeball’s resonant frequencies and frequency amplitudes. These results are useful for developing advanced acoustic tonometer.
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Affiliation(s)
- Po-Jen Shih
- Department of Biomedical Engineering, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei, 10617, Taiwan, ROC.
| | - Shao-Jie Wu
- Department of Mechanical Engineering, National Taiwan University, Taipei, Taiwan, ROC
| | - Ya-Hsing Sung
- Department of Biomedical Engineering, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei, 10617, Taiwan, ROC
| | - Yu-Ting Tung
- Department of Biomedical Engineering, National Cheng Kung University, Tainan, Taiwan, ROC
| | - Chia-Yu Chang
- Department of Mechanical Engineering, National Taiwan University, Taipei, Taiwan, ROC
| | - Shadie Hatamie
- Department of Biomedical Engineering, National Taiwan University, No. 1, Sec. 4, Roosevelt Rd., Taipei, 10617, Taiwan, ROC
| | - Zhi-Xuan Dai
- Department of Mechanical Engineering, National Taiwan University, Taipei, Taiwan, ROC
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15
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Lin JL, Ji YY, Zhang MZ, Tang Y, Wang RL, Ruan DD, Zhou YF, Wu SJ, Cai SL, Zhang JH, Meng XR, Luo JW, Fang ZT. Rare Cases of Bronchial Aneurysm and Comparison of Interventional Embolization in the Treatment of True Bronchial Aneurysm and Pseudobronchial Aneurysm. Front Cardiovasc Med 2022; 9:856684. [PMID: 35355974 PMCID: PMC8959610 DOI: 10.3389/fcvm.2022.856684] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/17/2022] [Accepted: 02/17/2022] [Indexed: 12/02/2022] Open
Abstract
Background Bronchial artery aneurysm (BAA) is a rare disease. Rupture of BAA can lead to life-threatening hemoptysis, and once diagnosed, treatment is needed regardless of symptoms. Transcatheter artery embolization is the first choice of treatment because it is minimally invasive and effective. This study aimed to retrospectively compare the embolization treatment of a case of true BAA and that of a pseudobranchial aneurysm and explore the choice of embolization method for BAA with short neck or no neck. Materials and Methods Embolization treatment and imaging characteristics of one case of true BAA and one case of pseudobronchial aneurysm admitted to our hospital were analyzed retrospectively. Embolization methods and therapeutic effects of two cases of BAAs were compared. Results Case 1 was that of an intact true BAA inside the mediastinum located at the opening of the bronchial artery. The distal end of the aneurysm was embolized, and tumor cavity was occluded. No recurrence of BAA was found after the operation. Case 2 was that of a ruptured and hemorrhagic pseudobronchial aneurysm of the mediastinum. Coil embolization combined with covered stent graft exclusion of the thoracic aorta were performed, and the left bronchial artery and BAA were almost occluded. Nine months postoperatively, the mediastinal hematoma was almost completely absorbed. Conclusion Endovascular embolization has become the most commonly used for the treatment of BAA. Different methods should be selected according to the location and nature of the aneurysm.
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Affiliation(s)
- Jia-Li Lin
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, China
| | - Yuan-Yuan Ji
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, China
| | - Ming-Zhe Zhang
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, China
| | - Yi Tang
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, China
- Department of Interventional Radiology, Fujian Provincial Hospital, Fuzhou, China
| | - Ruo-Li Wang
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, China
| | - Dan-Dan Ruan
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, China
| | - Yan-Feng Zhou
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, China
- Department of Interventional Radiology, Fujian Provincial Hospital, Fuzhou, China
| | - Shao-Jie Wu
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, China
- Department of Interventional Radiology, Fujian Provincial Hospital, Fuzhou, China
| | - Sen-Lin Cai
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, China
- Department of Interventional Radiology, Fujian Provincial Hospital, Fuzhou, China
| | - Jian-Hui Zhang
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, China
| | - Xiao-Rong Meng
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, China
| | - Jie-Wei Luo
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, China
- *Correspondence: Jie-Wei Luo,
| | - Zhu-Ting Fang
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, China
- Department of Interventional Radiology, Fujian Provincial Hospital, Fuzhou, China
- Zhu-Ting Fang,
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16
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Migliori GB, Wu SJ, Matteelli A, Zenner D, Goletti D, Ahmedov S, Al-Abri S, Allen DM, Balcells ME, Garcia-Basteiro AL, Cambau E, Chaisson RE, Chee CBE, Dalcolmo MP, Denholm JT, Erkens C, Esposito S, Farnia P, Friedland JS, Graham S, Hamada Y, Harries AD, Kay AW, Kritski A, Manga S, Marais BJ, Menzies D, Ng D, Petrone L, Rendon A, Silva DR, Schaaf HS, Skrahina A, Sotgiu G, Thwaites G, Tiberi S, Tukvadze N, Zellweger JP, D Ambrosio L, Centis R, Ong CWM. Clinical standards for the diagnosis, treatment and prevention of TB infection. Int J Tuberc Lung Dis 2022; 26:190-205. [PMID: 35197159 PMCID: PMC8886963 DOI: 10.5588/ijtld.21.0753] [Citation(s) in RCA: 24] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/20/2022] Open
Abstract
BACKGROUND: Tuberculosis (TB) preventive therapy (TPT) decreases the risk of developing TB disease and its associated morbidity and mortality. The aim of these clinical standards is to guide the assessment, management of TB infection (TBI) and implementation of TPT.METHODS: A panel of global experts in the field of TB care was identified; 41 participated in a Delphi process. A 5-point Likert scale was used to score the initial standards. After rounds of revision, the document was approved with 100% agreement.RESULTS: Eight clinical standards were defined: Standard 1, all individuals belonging to at-risk groups for TB should undergo testing for TBI; Standard 2, all individual candidates for TPT (including caregivers of children) should undergo a counselling/health education session; Standard 3, testing for TBI: timing and test of choice should be optimised; Standard 4, TB disease should be excluded prior to initiation of TPT; Standard 5, all candidates for TPT should undergo a set of baseline examinations; Standard 6, all individuals initiating TPT should receive one of the recommended regimens; Standard 7, all individuals who have started TPT should be monitored; Standard 8, a TBI screening and testing register should be kept to inform the cascade of care.CONCLUSION: This is the first consensus-based set of Clinical Standards for TBI. This document guides clinicians, programme managers and public health officers in planning and implementing adequate measures to assess and manage TBI.
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Affiliation(s)
- G B Migliori
- Respiratory Diseases Clinical Epidemiology Unit, Istituti Clinici Scientifici Maugeri IRCCS, Tradate, Italy
| | - S J Wu
- Division of Infectious Diseases, Department of Medicine, National University Hospital, National University Health System, Singapore City
| | - A Matteelli
- Division of Infectious and Tropical Diseases, Spedali Civili University Hospital, Brescia, Italy, WHO Collaborating Centre for TB/HIV Collaborative Activities and for TB Elimination Strategy, University of Brescia, Brescia, Italy
| | - D Zenner
- Centre for Global Public Health, Institute for Population Health Sciences, Queen Mary University, London, UK
| | - D Goletti
- Translational Research Unit, National Institute for Infectious Diseases "Lazzaro Spallanzani", IRCCS, Rome, Italy
| | - S Ahmedov
- USAID, Bureau for Global Health, TB Division, Washington, DC, USA
| | - S Al-Abri
- Directorate General for Disease Surveillance and Control, Ministry of Health, Muscat, Oman
| | - D M Allen
- Division of Infectious Diseases, Department of Medicine, National University Hospital, National University Health System, Singapore City, Infectious Disease Translational Research Programme, Department of Medicine, National University of Singapore, Yong Loo Lin School of Medicine, Singapore City
| | - M E Balcells
- Department of Infectious Diseases, School of Medicine, Pontificia Universidad Católica de Chile, Santiago, Chile
| | - A L Garcia-Basteiro
- Centro de Investigação em Saúde de Manhiça (CISM), Maputo, Mozambique, ISGlobal, Barcelona Centre for International Health Research, Hospital Clínic - Universitat de Barcelona, Barcelona, Spain
| | - E Cambau
- IAME UMR1137, INSERM, University of Paris, F-75018 Paris; AP-HP-Bichat Hospital, Associate laboratory of National Reference Center for Mycobacteria and Antimycobacterial Resistance, Paris, France
| | - R E Chaisson
- Center for Tuberculosis Research, Johns Hopkins University School of Medicine, Baltimore, MD, USA
| | - C B E Chee
- Tuberculosis Control Unit, Tan Tock Seng Hospital, Singapore, Singapore
| | - M P Dalcolmo
- Helio Fraga Reference Center, Oswaldo Cruz Foundation Ministry of Health, Rio de Janeiro, Brazil
| | - J T Denholm
- Victorian Tuberculosis Program, Melbourne Health, Melbourne, VIC, Australia, Department of Infectious Diseases, Peter Doherty Institute for Infection and Immunity, University of Melbourne, Melbourne, Australia
| | - C Erkens
- KNCV Tuberculosis Foundation, The Hague, The Netherlands
| | - S Esposito
- Paediatric Clinic, Pietro Barilla Children´s Hospital, University of Parma, Parma, Italy
| | - P Farnia
- Mycobacteriology Research Center (MRC), National Research Institute of Tuberculosis and Lung Disease (NRITLD), Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - J S Friedland
- Institute for Infection and Immunity, St George´s, University of London, London, UK
| | - S Graham
- Department of Paediatrics, Center for International Child Health, University of Melbourne, Melbourne, VIC, Australia, Murdoch Children´s Research Institute, Royal Children´s Hospital, Melbourne, Australia
| | - Y Hamada
- Institute for Global Health, University College London, London, UK
| | - A D Harries
- International Union Against Tuberculosis and Lung Disease, Paris, France, Department of Clinical Research, Faculty of Infectious and Tropical Diseases, London School of Hygiene & Tropical Medicine, London, UK
| | - A W Kay
- The Global Tuberculosis Program, Texas Children´s Hospital, Department of Pediatrics, Baylor College of Medicine, Houston, TX, USA
| | - A Kritski
- Academic Tuberculosis Program Center, Faculty of Medicine, Federal University of Rio de Janeiro, Rio de Janeiro, RJ, Brazil
| | - S Manga
- Operational Center, Medecins Sans Frontieres (MSF), Paris, France
| | - B J Marais
- Department of Infectious Diseases and Microbiology, The Children´s Hospital at Westmead, Westmead, NSW, Australia, The University of Sydney Institute for Infectious Diseases, Sydney, NSW, Australia
| | - D Menzies
- Montréal Chest Institute, Montréal, QC, Canada, Respiratory Epidemiology and Clinical Research Unit, Centre for Outcomes Research and Evaluation, Research Institute of McGill University Health Centre, Montréal, QC, Canada, McGill International Tuberculosis Centre, Montréal, QC, Canada
| | - D Ng
- Infectious Diseases, National Centre for Infectious Diseases, Singapore
| | - L Petrone
- Translational Research Unit, National Institute for Infectious Diseases "Lazzaro Spallanzani", IRCCS, Rome, Italy
| | - A Rendon
- Centro de Investigación, Prevención y Tratamiento de Infecciones Respiratorias CIPTIR, University Hospital of Monterrey UANL (Universidad Autonoma de Nuevo Leon), Monterrey, Mexico
| | - D R Silva
- Faculdade de Medicina, Universidade Federal do Rio Grande do Sul (UFRGS), Porto Alegre, RS, Brazil
| | - H S Schaaf
- Desmond Tutu TB Centre, Department of Paediatrics and Child Health, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - A Skrahina
- Republican Research and Practical Center for Pulmonology and Tuberculosis, Minsk, Belarus
| | - G Sotgiu
- Clinical Epidemiology and Medical Statistics Unit, Department of Medical, Surgical and Experimental Sciences, University of Sassari, Sassari, Italy
| | - G Thwaites
- Oxford University Clinical Research Unit, Ho Chi Minh City, Vietnam, Centre for Tropical Medicine and Global Health, Nuffield Department of Medicine, University of Oxford, Oxford, UK
| | - S Tiberi
- Department of Infection, Royal London Hospital, Barts Health NHS Trust, London, UK, Blizard Institute, Queen Mary University of London, London, UK
| | - N Tukvadze
- National Center for Tuberculosis and Lung Diseases, Tbilisi, Georgia
| | - J-P Zellweger
- TB Competence Center, Swiss Lung Association, Berne, Switzerland
| | - L D Ambrosio
- Public Health Consulting Group, Lugano, Switzerland
| | - R Centis
- Respiratory Diseases Clinical Epidemiology Unit, Istituti Clinici Scientifici Maugeri IRCCS, Tradate, Italy
| | - C W M Ong
- Division of Infectious Diseases, Department of Medicine, National University Hospital, National University Health System, Singapore City, Infectious Disease Translational Research Programme, Department of Medicine, National University of Singapore, Yong Loo Lin School of Medicine, Singapore City, National University of Singapore Institute for Health Innovation & Technology (iHealthtech), Singapore, Singapore
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Li MC, Ren YH, Han YY, Dong YM, Wu SJ, Zhang WH, Qi L, Lu YM, Ma HX. Novel Pyrimidine-Triazole Schiff Bases: Synthesis, Antifungal Activities, DFT and Molecular Docking. Rev Chim 2021. [DOI: 10.37358/rc.21.4.8457] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Seven 4-amino-5-substituted-1,2,4-triazole-3-thione Schiff base compounds were synthesized reacting 4-amino-5-substituted-1,2,4-triazole-3-thione with dichloro-substituted 5-pyrimidines, and the structures were verified by elemental analysis and spectroscopic techniques (FT-IR, 1H NMR). Additionally, in vitro antifungal activities of the compounds (named F1~F2; A1~A5) against Grape anthracnose and Wheat gibberellic have been evaluated. The compounds of F1, A4 and A5 were found to be potentially effective antifungal agents against Grape anthracnose, while the others showed the low bioactivity. The antifungal activity of all compounds against Wheat gibberellic were superior to that of fluconazole (standard drug, SD). Particularly, compounds of F1, A1, A4 and A5 exhibited a broad-spectrum antifungal activity against two fungus as compared to the others. Therefore, molecular docking study was carried out to explore the potential interaction between ligands and Fusarium graminearum (PDB ID: 5E9H). The results showed that four compounds had higher affinity compared with fluconazole and form the stable complex with the receptor. Besides, the frontier molecular orbitals (FMOs) and molecular electrostatic potentials (MEP) of four compounds with broad-spectrum antimicrobial activity were also calculated with DFT/ B3LYP /6-31G (d, p) method. The energy gap values (△ELUMO-HOMO) of all the synthesized compounds ranged from 3.307-3.375 eV, which was lower than that of SD (6.248 eV). Additionally, according to MEP the electrophile reaction of 5-substituted groups was beneficial to improving the biological activity against Wheat gibberellic and Grape anthracnose.
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18
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Li ML, Wu SJ. [The risk assessment of recurrent venous thromboembolism]. Zhonghua Jie He He Hu Xi Za Zhi 2021; 44:749-754. [PMID: 34645142 DOI: 10.3760/cma.j.cn112147-20201023-01061] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
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19
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Tang Y, Zhang JH, Zhu YB, Wu SJ, Cai SL, Zhou YF, Qian X, Luo JW, Fang ZT. Effect of superselective prostatic artery embolization on benign prostatic hyperplasia. Abdom Radiol (NY) 2021; 46:1726-1736. [PMID: 33025152 DOI: 10.1007/s00261-020-02782-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/02/2020] [Revised: 08/16/2020] [Accepted: 09/21/2020] [Indexed: 12/22/2022]
Abstract
PURPOSE To investigate the safety and effectiveness of superselective prostatic artery embolization (PAE) in patients with benign prostatic hyperplasia (BPH). METHODS Sixty-five patients diagnosed with BPH in Fujian Provincial Hospital between December 2014 and July 2019 were included. Patients with ineffective drug treatment after 6 months, who refused surgery, or who were unsuitable for surgery were included. We observed postoperative complications, followed up at 1, 3, and 6 months, compared clinical symptoms, and monitored changes in prostate-specific antigen (PSA) and prostatic volume (PV) before and after treatment. RESULTS Of the 65 patients, 58 (89.23%) successfully received PAE; 44 and 14 bilateral and unilateral embolization, respectively. Clinical efficacy was 94.83% (55/58) after the 6-month follow-up. Postoperative PV, International Prostate Symptom Score, quality of life, maximum flow rate, and post-void residual significantly improved after 6 months (P < 0.05). One month after PAE, the serum total PSA increased by 1.47 (10.84/7.37) times and dropped 3 months later to a level lower than that before surgery (P < 0.05). Six months after PAE, the degree of relief from obstructive symptoms was more apparent than that of irritative symptoms. No serious complications were observed after PAE. CONCLUSION PAE was safe and effective for the treatment of BPH. The efficacy of bilateral PAE was better than that of unilateral PAE.
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Affiliation(s)
- Yi Tang
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, 350001, China
- Department of Interventional Radiology, Fujian Provincial Hospital, Fuzhou, 350001, China
| | - Jian-Hui Zhang
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, 350001, China
| | - Yao-Bin Zhu
- Department of Traditional Chinese Medicine, The First Affiliated Hospital, Fujian Medical University, Fuzhou, 350001, China
| | - Shao-Jie Wu
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, 350001, China
- Department of Interventional Radiology, Fujian Provincial Hospital, Fuzhou, 350001, China
| | - Sen-Lin Cai
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, 350001, China
- Department of Interventional Radiology, Fujian Provincial Hospital, Fuzhou, 350001, China
| | - Yan-Feng Zhou
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, 350001, China
- Department of Interventional Radiology, Fujian Provincial Hospital, Fuzhou, 350001, China
| | - Xin Qian
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, 350001, China
- Department of Interventional Radiology, Fujian Provincial Hospital, Fuzhou, 350001, China
| | - Jie-Wei Luo
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, 350001, China.
- Department of Traditional Chinese Medicine, Fujian Provincial Hospital, Fuzhou, 350001, China.
| | - Zhu-Ting Fang
- Shengli Clinical Medical College of Fujian Medical University, Fuzhou, 350001, China.
- Department of Interventional Radiology, Fujian Provincial Hospital, Fuzhou, 350001, China.
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20
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Feng SJ, Wu SJ, Zheng QT. Design method of a modified layered aerobic waste landfill divided by coarse material. Environ Sci Pollut Res Int 2021; 28:2182-2197. [PMID: 32870431 DOI: 10.1007/s11356-020-10417-8] [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: 04/28/2020] [Accepted: 08/05/2020] [Indexed: 06/11/2023]
Abstract
To overcome the weaknesses of traditional landfills, a modified aerobic landfill concept with intermediate covers of coarse material between waste layers functioning as facilities of drainage and aeration has been proposed recently. In this study, a one-dimensional coupled model, including aerobic biodegradation, oxygen diffusion, and advection, is proposed to describe oxygen distribution in this new type of landfill. Homotopy analysis method and perturbation method are applied to solve this model at passive aeration and active aeration, respectively. The model has six input variables, that is, oxygen diffusion coefficient, gas permeability, maximum oxygen consumption rate, layer thickness of waste, and injection pressure and extraction pressure. A combination of their typical values gives rise to over 700,000 scenarios which can be calculated by the proposed solution. The coupled effect of the above variables on oxygen migration is quantitatively investigated, followed by an estimation formula of the minimum oxygen concentration in waste layer. The maximum waste layer thickness is defined as a function of other variables for a given aeration target of oxygen volume concentration larger than 5%. A generalized design method of waste layer thickness, injection pressure, and extraction pressure is then developed for the newly proposed modified layered aerobic landfill, which can promote its popularization and application.
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Affiliation(s)
- Shi-Jin Feng
- Key Laboratory of Geotechnical and Underground Engineering of Ministry of Education, Department of Geotechnical Engineering, Tongji University, Shanghai, 200092, China
| | - Shao-Jie Wu
- Department of Geotechnical Engineering, Tongji University, Shanghai, 200092, China
| | - Qi-Teng Zheng
- Department of Geotechnical Engineering, Tongji University, Shanghai, 200092, China.
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21
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Yao N, Ren K, Gu XJ, Wu SJ, Shi X, Chang Q, Li YG, Gao ZX, Jin QM, Zhang J, Wang C, Zhou J. Identification of potential crucial genes associated with vasculogenic mimicry in human osteosarcoma based on gene expression profile. Neoplasma 2019; 67:286-295. [PMID: 31884799 DOI: 10.4149/neo_2019_190414n329] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/14/2019] [Accepted: 07/09/2019] [Indexed: 11/08/2022]
Abstract
We previously reported the presence of vasculogenic mimicry (VM) in human osteosarcoma. However, the mechanistic basis of osteosarcoma VM remains unclear. Three hundred eighty-one upregulated differentially expressed genes (DEGs) and 526 downregulated DEGs between human osteosarcoma cell line 143B and HOS cell exposed to Matrigel were screened out by microarray. GO categories such as "cell adhesion", "angiogenesis" were enriched in 143B group. PATHWAY analysis showed enriched TGF-beta, Wnt and VEGF signaling pathway in 143B group. The hub gene ITGA2 in signal-network of DEGs exhibited pro-VM and pro-metastasis effect. Our study provides fundamental data for further studies regarding molecules involved in osteosarcoma VM.
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Affiliation(s)
- N Yao
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, China.,Laboratory of Translational Medicine, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing, China
| | - K Ren
- Department of Orthopedics, Zhongda Hospital, Southeast University, Nanjing, China
| | - X J Gu
- Institute of Biotechnology, School of Environmental and Chemical Engineering, Dalian Jiaotong University, Dalian, China
| | - S J Wu
- Department of Orthopedics, Jinling Hospital, Nanjing University, Nanjing, China
| | - X Shi
- Department of Orthopedics, Jinling Hospital, Nanjing University, Nanjing, China
| | - Q Chang
- Department of Orthopedics, Zhongda Hospital, Southeast University, Nanjing, China
| | - Y G Li
- Department of Orthopedics, Zhongda Hospital, Southeast University, Nanjing, China
| | - Z X Gao
- Department of Orthopedics, Zhongda Hospital, Southeast University, Nanjing, China
| | - Q M Jin
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, China.,Laboratory of Translational Medicine, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing, China
| | - J Zhang
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, China.,Laboratory of Translational Medicine, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing, China
| | - C Wang
- Department of Orthopedics, Zhongda Hospital, Southeast University, Nanjing, China
| | - J Zhou
- Affiliated Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, China.,Laboratory of Translational Medicine, Jiangsu Province Academy of Traditional Chinese Medicine, Nanjing, China.,School of Basic Medicine and Clinical Pharmacy, China Pharmaceutical University, Nanjing, China
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Huang WJ, Wu SJ, Su L, Chen XY, Cai BN, Zhou JG, Lan RF, Fu GS, Xu L, Xiao FY, Wang SJ, Mao GY, Vijayaraman P, Ellenbogen K. P4528Feasibility and safety of left bundle branch area pacing by transvenous approach through the interventricular septum in patients with left bundle branch block. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz745.0921] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
His bundle pacing (HBP) has been shown to correct left bundle branch block (LBBB), however it often requires high pacing output and the success rate is variable.
Objective
To assess the feasibility and safety of left bundle branch area pacing (LBBAP) in patients with LBBB.
Methods
From Apr 2014 to Aug 2018, patients with LBBB from multicenters indicated for CRT or pacing therapy were included. LBBAP was performed by advancing the MDT 3830 lead deep into the septum about 1 cm distal to the His bundle region (Figure 1F). Pacing characteristics, success rate, threshold and R-wave amplitude were assessed.
Results
A total of 94 patients aged 68.3±10.7 y with the native QRS duration of 167.2±17.2 ms were included. In 92 patients, LBBAP was successfully achieved and demonstrated RBBB pattern during unipolar tip pacing (UTP), with the paced QRS duration of 116.4±12.6ms (Figure 1C). Fusion of LBBAP and native conduction via the RBB eliminated RBBB and resulted in an average QRS duration of 103.2±10.1 ms (Figure 1D). LBB potential could be recorded from the LBB lead during correction of LBBB by HBP in 21 patients who used two leads method (His lead and LBB lead, Figure 1B). Output dependent selective and non-selective LBBAP were demonstrated in 48 patients (Figure 1C, D). The LBB capture threshold by UTP was 0.53±0.18V/0.5ms at acute and 0.62±0.17V/0.5ms at 6 months and 0.65±0.2V/0.5ms at 1 year. The R-wave amplitude were 11.4±5.2mV, 12.4±5.8mV and 12.0±5.8mV at acute, 6 month and 1 year. During follow-up, only one patient had an increase in LBB capture threshold to 2.5V/0.5ms at 3 months and there were no other complications such as dislodgment, infections, embolism or stroke associated with the implantation.
Conclusion
Permanent LBBAP is feasible and safe in patients with LBBB.
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Affiliation(s)
- W J Huang
- The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - S J Wu
- The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - L Su
- The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - X Y Chen
- Zhongshan Hospital, Fudan University, Department of Cardiology, Shanghai, China
| | - B N Cai
- Xiamen Cardiovascular Hospital, Xiamen University, Xiamen, China
| | - J G Zhou
- The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - R F Lan
- Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing, China
| | - G S Fu
- Sir Run Run Shaw Hospital affiliated to Medical College of Zhejiang University, Hangzhou, China
| | - L Xu
- The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - F Y Xiao
- The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - S J Wang
- The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - G Y Mao
- School of Environmental Science & Public Health, Wenzhou Medical University,, Wenzhou, China
| | - P Vijayaraman
- Virginia Commonwealth University, Richmond, United States of America
| | - K Ellenbogen
- Geisinger Heart Institute, Wilkes Barre, United States of America
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Su L, Huang WJ, Wu SJ. P6548Left bundle branch area pacing in patients with atrioventricular block. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz746.1138] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Abstract
Abstract
Background
The application of His bundle pacing (HBP) on patients with distal AV block should be of concern.Left bundle branch Aera pacing (LBBA pacing), pacing immediately beyond the site of block will be considered.
Purpose
To access the clinical benefits and safety of LBBA pacing in patients with atrioventricular (AV) block.
Methods
One hundred and thiry nine patients diagnosed with AVB were included. The Select Secure lead (model 3830; Medtronic) was used. Characteristics of LBB capture are summarized as following: 1) The paced QRS morphology of RBBB pattern during unipolar tip pacing; 2) Usually, LBB potential could be recorded; 3) If higher output pacing shortened the times abruptly and the times remain constant. Pacing parameters (threshold, R-wave amplitude and impedance) and Echocardiographic measurements were assessed during follow-up.
Results
All patients were success achieved LBBA pacing. The detailed baseline characteristic and follow-up were shown in the Table. Threshold, R-wave amplitude and impedance remained stable during follow -up. Echocardiographic measurements showed that LBB pacing did not affect the cardiac function. There was no LV septum penetration and dislodgment.
Conclusion
LBBA pacing had ideal pacing parameters and preserve cardiac function and may be an excellent alternative to HBP or RVP.
Acknowledgement/Funding
Key R&D Program of Zhejiang (2019C03012), Major Project of the Science and Technology of Wenzhou (ZS2017010)
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Affiliation(s)
- L Su
- The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - W J Huang
- The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
| | - S J Wu
- The First Affiliated Hospital of Wenzhou Medical University, Wenzhou, China
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Wang T, Tan YJ, Wu SJ, Huang M, Yin BT, Huang J, Wei N, Wei W, Wang F. [The ratio of tuberculosis-specific antigen to phytohemagglutinin in T-SPOT assay in the diagnosis of active tuberculosis]. Zhonghua Jie He He Hu Xi Za Zhi 2019; 42:262-267. [PMID: 30955283 DOI: 10.3760/cma.j.issn.1001-0939.2019.04.003] [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] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Objective: The aim of this study was to determine the performance of the ratio of tuberculosis-specific antigen (TBAg) to phytohemagglutinin (PHA) (TBAg/PHA ratio) in T-SPOT assay in the diagnosis of active tuberculosis (ATB). Methods: Between January 2014 and January 2017, 378 Mycobacterium tuberculosis (MTB) culture positive patients (268 cases of pulmonary tuberculosis, 110 extra-pulmonary tuberculosis) and 824 healthy individuals were recruited from Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology. T-SPOT assay was performed and TBAg/PHA ratio was calculated in all the participants. To validate the study, another group of 223 MTB culture positive TB patients with positive T-SPOT results were recruited from Guangzhou Chest Hospital between January 2017 and December 2017. This was a retrospective case-control study and differences between groups were analyzed using the Mann-Whitney U-test. Results: Of the 378 culture positive ATB patients, 344 patients had positive T-SPOT results. Of the 824 healthy individuals, 204 individuals had positive T-SPOT results. Using healthy individuals as the control group, the sensitivity and specificity of T-SPOT assay in the diagnosis of ATB were 91.0% (344/378) and 75.2% (620/824). Directly using T-SPOT results had a limited accuracy in distinguishing ATB from latent tuberculosis infection (LTBI). The area under the receiver operating characteristic (ROC) curve was between 0.7 and 0.8. However, a further calculation of the TBAg/PHA ratio showed a better performance than TBAg in distinguishing these two conditions, and the area under the ROC curve was 0.881 (95% CI: 0.853-0.909). If using the threshold value of 0.234, the sensitivity and specificity of the TBAg/PHA ratio in distinguishing ATB from LTBI were 69.5% (239/344) and 94.12% (192/204). The validation data showed that the performance of the TBAg/PHA ratio in distinguishing ATB from LTBI was also satisfactory, and the area under the ROC curve was 0.901 (95% CI: 0.872-0.931). Furthermore, the TBAg/PHA ratio had an important role in the diagnosis of extra-pulmonary tuberculosis. If using the threshold value of 0.234, the sensitivity and specificity of the TBAg/PHA ratio in the diagnosis of extra-pulmonary tuberculosis were 79.2% (76/96) and 94.1% (192/204). The area under the ROC curve was 0.932 (95% CI: 0.897-0.967). Conclusions: The TBAg/PHA ratio in T-SPOT assay was better than directly using T-SPOT results in distinguishing ATB from LTBI. This ratio also showed a potential use in the diagnosis of extra-pulmonary tuberculosis.
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Affiliation(s)
- T Wang
- Department of Laboratory Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Y J Tan
- Department of Clinical Laboratory, Guangzhou Chest Hospital, Guangzhou 510095, China
| | - S J Wu
- Department of Laboratory Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - M Huang
- Department of Laboratory Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - B T Yin
- Department of Laboratory Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - J Huang
- Department of Laboratory Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - N Wei
- Department of Laboratory Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - W Wei
- Department of Laboratory Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - F Wang
- Department of Laboratory Medicine, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
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Wu SJ, Chen S, Chen B, Wang L, Zeng X. [Efficacy of standardized sublingual immunotherapy of allergic asthma with rhinitis in children between different age groups]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2018; 31:761-764. [PMID: 29771038 DOI: 10.13201/j.issn.1001-1781.2017.10.006] [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] [Subscribe] [Scholar Register] [Received: 03/01/2017] [Indexed: 11/12/2022]
Abstract
Objective:The aim of this study is to evaluate the efficacy of standardized sublingual immunotherapy of allergic asthma with rhinitis in children between two different age groups. Method:Retrospective analysis of 250 patients with allergic asthma and rhinitis who received SLIT treatment. According to the age divided into younger children group (aged 3-6 years, 128 patients) and older children group (aged 7-13 years, 122 patients). Evaluate the asthma daytime, nocturnal symptom, medication score, VAS score and pulmonary function FEV1, PEF% level and rhinitis symptom and medication score before and after treatment of two groups of children. Result:The DASS, NASS, TAMS, VAS, FEV1, PEF, TNSS, TRMS had continuously improved significantly after SLIT for half a year, 1 year and 2 years in two groups as compared with baseline (P<0.05). The treatment after 1 year and 2 years, curative effect strengthened continuously, and TAMS, VAS, TNSS and TRMS further reduced. After treatment of each point in time, only at SLIT treatment after half a year, the TAMS, VAS score of younger children group was lower than of older children group (Z values were 4.58 and 4.58, P<0.05). The rest of the indicators were no statistical significance difference between the two age groups (P>0.05). Conclusion:Sub-lingual immunotherapy with Dermatophagoides farinae drops in younger children and older children allergic with asthma and rhinitis can play a significant and similar effect.
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Affiliation(s)
- S J Wu
- Asthmatic Children Prevention and Specific Immunotherapy Center, Peoples' Hospital of Hainan Province, Haikou,570311, China
| | - S Chen
- Asthmatic Children Prevention and Specific Immunotherapy Center, Peoples' Hospital of Hainan Province, Haikou,570311, China
| | - B Chen
- Asthmatic Children Prevention and Specific Immunotherapy Center, Peoples' Hospital of Hainan Province, Haikou,570311, China
| | - L Wang
- Asthmatic Children Prevention and Specific Immunotherapy Center, Peoples' Hospital of Hainan Province, Haikou,570311, China
| | - X Zeng
- Asthmatic Children Prevention and Specific Immunotherapy Center, Peoples' Hospital of Hainan Province, Haikou,570311, China
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Wu SJ, Chen S, Chen B, Wang L, Zeng X. [An analysis of the subcutaneous immunotherapy on the pulmonary function and symptoms of asthma and rhinitis in children]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2018; 31:1352-1355. [PMID: 29798230 DOI: 10.13201/j.issn.1001-1781.2017.17.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 06/22/2017] [Indexed: 11/12/2022]
Abstract
Objective:To evaluate the effect of subcutaneous immunotherapy on allergic asthma and rhinitis in children.Method:A prospective study was adopted to analysis 3 years SCIT treatment of 144 cases of children with allergic asthma and rhinitis. Before and after SCIT treatment for 1 year, 2 and 3 years, FEV1, daytime and night symptoms of asthma and rhinitis were evaluated.Result:After 3 years of SCIT treatment, the FEV1 had significantly increased (F= 243.05, P< 0.01), and with the duration of the treatment was further improvement (P< 0.01). Compared with the baseline, treatment 1 year in daytime, nighttime symptoms scores of asthma and nighttime symptoms scores of rhinitis had significantly reduced (P< 0.01). All symptoms were reduced further by 2 years of treatment (P< 0.01) compared with 1 year. Compared with the 2 years of treatment, daytime symptoms of asthma and rhinitis of 3 years SCIT treatment was improved significantly (P< 0.05).Conclusion:Subcutaneous immunotherapy with 3 years in children allergic with asthma and rhinitis can play a significant effect.
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Affiliation(s)
- S J Wu
- Asthmatic Children Prevention and Specific Immunotherapy Center, Peoples' Hospital of Hainan Province, Haikou, 570311, China
| | - S Chen
- Asthmatic Children Prevention and Specific Immunotherapy Center, Peoples' Hospital of Hainan Province, Haikou, 570311, China
| | - B Chen
- Asthmatic Children Prevention and Specific Immunotherapy Center, Peoples' Hospital of Hainan Province, Haikou, 570311, China
| | - L Wang
- Asthmatic Children Prevention and Specific Immunotherapy Center, Peoples' Hospital of Hainan Province, Haikou, 570311, China
| | - X Zeng
- Asthmatic Children Prevention and Specific Immunotherapy Center, Peoples' Hospital of Hainan Province, Haikou, 570311, China
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27
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Lu HB, Jia YS, Guo XL, Yu H, Wu SJ. [Experimental study of using chitosan nerve conduit combined with PRP to repair facial nerve defect]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2018; 31:1496-1500;1503. [PMID: 29798102 DOI: 10.13201/j.issn.1001-1781.2017.19.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 07/26/2017] [Indexed: 11/12/2022]
Abstract
Objective:The purpose of this study was to produce chitosan nerve conduit in order to investigate the feasibility of chitosan nerve conduit combined with autologous platelet-rich plasma (PRP) for repairing facial nerve defects.Method:Forty New Zealand white rabbits were randomly divided into four groups (n=10 in each group).Establishment of the facial nerve defect model of the upper buccal branches was placed in the nerve regeneration catheter and injected with the same amount of PRP and saline. The PRP was injected into the chitosan nerve conduit as group A. The physiological saline was injected into the chitosan nerve conduit as group B. The physiological saline was injected into the silicone tube as group C. The PRP was injected into the silicone tube as group D. Eight weeks later,facial nerve gross observation,facial nerve electrophysiological tests,histological observation,image analysis,valuation of nerve regeneration recovery were detected.Result:Five patients were lost to follow up (all five in the modified Semont group),and three patients failed to complete treatment (all three in the Epley group). The sequelae at the 3rd day and one week after modified Semont maneuver were 27 and 9,while 41 and 15 in Epley group. The efficacy rates at the 3rd day and one week after modified Semont maneuver were 91.7% and 98.3%,and 91.9% and 96.8% in Epley group retrospectively. The sequelae and short-term effective rate of patients in modified Semont group was no difference when compared with that in Epley group (P>0.05).Conclusion:The chitosan nerve conduit combined with PRP has a certain effect on the repair of facial nerve defects and is expected to be applied to the repair of clinical facial nerve defects.
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Affiliation(s)
- H B Lu
- Department of Oral and Maxillofacial Surgery,Zhongshan Hospital Affiliated to Dalian University,Dalian,116001,China
| | - Y S Jia
- Department of Oral and Maxillofacial Surgery,Zhongshan Hospital Affiliated to Dalian University,Dalian,116001,China
| | - X L Guo
- Department of Endodontics,Dalian Stomatological Hospital Affiliated to Dalian Medical University
| | - H Yu
- Department of Oral and Maxillofacial Surgery,Zhongshan Hospital Affiliated to Dalian University,Dalian,116001,China
| | - S J Wu
- Department of Oral and Maxillofacial Surgery,Zhongshan Hospital Affiliated to Dalian University,Dalian,116001,China
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Tian YG, Yue M, Nashun B, Wu SJ, Gu WW, Wang YJ. The diagnostic value of [ 18F]-FDG-PET/CT in assessment of radiation renal injury in Tibet minipigs model. J Transl Med 2018; 16:257. [PMID: 30223848 PMCID: PMC6142350 DOI: 10.1186/s12967-018-1626-0] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [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: 06/11/2018] [Accepted: 08/31/2018] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Radiation-induced kidney damage can severely affect renal function, and have a serious impact on glucose reabsorption. Fluoro-2-deoxyglucose positron emission tomography (FDG-PET) is routinely utilized for metabolic imaging of glucose utilization. In this study, we are trying to assess the diagnostic value of 18F-FDG-PET/CT on measuring hyperacute effect of total body irradiation (TBI) on the kidneys. METHODS Forty-eight Tibet minipigs were treated by TBI of different dosages using an 8-MV X-ray linear accelerator. Whole-body 18F-FDG-PET/CT was performed at 6, 24 and 72 h followed by histologic examination, blood samples' and renal function analysis. RESULTS The uptake of 18F-FDG was significantly different between 11/14 Gy dose groups and control group, the standard Uptake Values reached a maximal level at 72 h after 14-Gy TBI treatment. At doses over 8 Gy, histological observation showed formation of tube casts, degeneration, necrosis of tubular cells, inflammatory cell infiltration and dilatation of the mitochondria of tubule cells. Renal function analysis confirmed the changes in blood urea nitrogen and creatinine levels at various dosages and time intervals. Immunohistochemistry and western blot results indicate that the expression levels of IL-10 and TNF-α proteins were positively correlated with radiation dose up to 8 Gy. CONCLUSIONS 18F-FDG PET/CT can reflect pathological changes in kidneys and it may be a useful tool for rapid and non-invasive assessment in cases of suspected radiation-induced kidney damage.
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Affiliation(s)
- Yu-Guang Tian
- Department of Laboratory Animal Center, Southern Medical University, 1838# Guangzhou North Road, Guangzhou, 510515, Guangdong, China
| | - Min Yue
- Department of Laboratory Animal Center, Southern Medical University, 1838# Guangzhou North Road, Guangzhou, 510515, Guangdong, China
| | - Bayaer Nashun
- Department of Guangdong Medical University, Dongguan, 523808, People's Republic of China
| | - Shao-Jie Wu
- Department of Hemotology, Zhujiang Hospital, Southern Medical University, 253# Industry Road, Guangzhou, 510282, Guangdong, China
| | - Wei-Wang Gu
- Department of Laboratory Animal Center, Southern Medical University, 1838# Guangzhou North Road, Guangzhou, 510515, Guangdong, China.
| | - Yu-Jue Wang
- Department of Laboratory Animal Center, Southern Medical University, 1838# Guangzhou North Road, Guangzhou, 510515, Guangdong, China.
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Chen XL, Li P, Wu SJ, Liu ZR, Lin JF, Guan XQ. [Electrocardiographic characteristics of idiopathic ventricular arrhythmias originating from the tricuspid annulus regions]. Zhonghua Xin Xue Guan Bing Za Zhi 2018; 46:611-616. [PMID: 30139011 DOI: 10.3760/cma.j.issn.0253-3758.2018.08.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Object: To explore the electrocardiographic characteristics of ventricular arrhythmias (VAs) originating from tricuspid annulus region. Methods: Present study included 169 consecutive patients undergoing catheter ablation of VAs from tricuspid annulus origin in our department from August 2007 to September 2016. Based on the origin sites, the patients were divided into two subgroups, the free wall group (81 cases) and septal wall group (88 cases). Based on the location, patients in the free wall group were classified into anterolateral (22 cases), lateral (26 cases) and posterolateral (33 cases) subgroups. Patients in the septal group were classified into anteroseptal (10 cases), midseptal (71 cases) and posteroseptal (7 cases) subgroups. We analyzed the electrocardiographic features of these patients and in 87 patients with PVCs/VT originating from right ventricular outflow tract. Results: (1) A positive R wave inⅠ, aVL, V(5)-V(6) leads were found among most of patients, only few cases originating from tricuspid annulus anteroseptum group and tricuspid annulus anterolateral group demonstrated qr or qs pattern in aVL lead. 97.53% (79/81) patients demonstrated rS pattern in V(1)-V(3) leads with VAs originating from tricuspid annulus free wall, and 9/10 patients demonstrated rS pattern in V(1) lead with VAs originating from anteroseptum, and 97.44% (76/78) patients demonstrated QS pattern in V(1) lead with VAs originating from midseptum and posteroseptum. Precordial lead transition zone was on or behind V(3) for tricuspid annulus free wall group (96.3%, 78/81), but in front of V(3) for tricuspid annulus septum wall group (47.73%, 42/88) (P<0.01). The S wave's amplitude smaller than-1.81 mV in lead V(2) can be used as a cutoff value to identify if PVC/VT is originating from free wall or septum of TA. R wave in inferior wall leads was found among 98.85% (86/87) patients with PVCs/VT originating from right ventricular outflow tract. Conclusion: A positive R wave in Ⅰ, aVL, V(5)-V(6) leads was found among most of patients with idiopathic ventricular arrhythmias originating from the tricuspid annulus regions, but VAs originating from different portions of tricuspid annulus area have distinct electrocardiographic characteristics.
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Affiliation(s)
- X L Chen
- Department of Cardiology, Second Affiliated Hospital of Wenzhou Medical College, Wenzhou 325027, China
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Wu MA, Wu MY, Wu SJ, Zhu JJ, Lyu Z, Li CL, Shen LJ. [Analysis of corneal and conjunctival sensitivities and its related factors of premature babies]. Zhonghua Yan Ke Za Zhi 2018; 54:115-119. [PMID: 29429296 DOI: 10.3760/cma.j.issn.0412-4081.2018.02.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyse the corneal and conjunctival sensitivities of premature babies and to study the relevant influencing factors. Methods: Cross-sectional study. One hundred premature infants born at Women's Hospital School of Medicine Zhejiang University between May 2015 and September 2015 were enrolled, among which 51 were male (51%) and 49 were female (49%), the mean gestational age was (30.93±1.75)w, the mean corrected gestational age was (33.65±1.53)w, the mean birth weight was (1 592±336)g. The thresholds of cornea and conjunctiva of infants' left or right eyes were measured with Cochet-Bonnet aesthesiometer at 8-10 o'clock every morning when they naturally woke up, the minimum length of nylon wire that induced three successive times of eye-blink responses was recorded. Paired sample t test was used to compare the corneal and conjunctival sensitivities, the ocular surface sensitivities of preterm infants of different gender were compared using independent samples t-test, Pearson correlation and multiple linear regression analysis was conducted to analyze the correlation of corneal and conjuncitval sensitivities with gestational age, birth weight, age and corrected gestational age. Results: The mean corneal sensitivity was (44.85±5.53) mm and the mean conjunctival sensitivity was (23.50±5.48)mm in premature babies, corneal sensitivity was significantly higher than conjunctival sensitivity (t=25.620, P<0.001). No statistical significance was found between male and female preterm infants in corneal sensitivity [(44.80±5.83) mm vs. (44.90±5.25) mm, t=-0.085, P=0.933] and conjunctival sensitivity[(23.14±5.83) mm vs. (23.88±5.13) mm, t=-0.673, P=0.502]. Pearson correlation analysis showed that corneal sensitivity was significantly associated with conjunctival sensitivity in prematurity(r=0.676, P<0.001). There was significant correlation between corneal sensitivity and age, corrected gestational age (r=0.238, P=0.017; r=0.679, P<0.001), however no significant correlation was found between corneal sensitivity and gestational age, birth weight in preterm infants (r=0.067, P=0.510; r=-0.179, P=0.075). There was significant correlation between conjunctival sensitivity and corrected gestational age (r=0.490, P<0.001), however no significant correlation was found between conjunctival sensitivity and gestational age, birth weight and age in preterm infants (r=0.078, P=0.439; r=-0.096, P=0.344; r=0.151, P=0.133). Multiple linear regression revealed that corneal sensitivity(Y1) was positively correlated with corrected gestational age(X), the regression equation was Y1=2.45X-37.52, the conjunctical sensitivity(Y2) was also positively correlated with corrected gestational age(X), the regression equation was Y2=1.75X-35.41. Conclusions: The corneal sensitivity is higher than conjunctival sensitivity in premature babies.No statistical significance is found between male and female preterm infants in corneal sensitivity and conjunctival sensitivity. The corneal sensitivity and conjunctival sensitivity are correlated with corrected gestational age in preterm infants. The corneal and conjunctival sensitivities of premature babies tend to increase along with the increase of corrected gestational age. (Chin J Ophthalmol, 2018, 54: 115-119).
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Affiliation(s)
- M A Wu
- Eye Hospital of Wenzhou Medical University, Wenzhou 325027, China
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Zhang T, Zhou Q, Qian YG, Zhou J, Wu SJ, Wang PY, Liu AP. [A cross-sectional study on dyslipidemia in migrants in Inner Mongolia Autonomous Region]. Zhonghua Liu Xing Bing Xue Za Zhi 2017; 38:902-905. [PMID: 28738463 DOI: 10.3760/cma.j.issn.0254-6450.2017.07.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the prevalence of dyslipidemia in migrants in Inner Mongolia Autonomous Region. Methods: A stratified multi-stage cluster equal size sampling was performed among the migrants aged ≥18 years who were engaged in manufacturing, wholesale retail, accommodation and catering service, social service, construction and other and 1 501 migrants from five area in Inner Mongolia Autonomous Region was investigated by means of questionnaires survey, physical measurements and laboratory detection. Results: Complete data was obtained in 1 496 study subjects. The prevalence of dyslipidemia was 42.65% (638/1 496), the age-standardized prevalence was 42.05%; the prevalence of hypercholesterolemia, hypertriglyceridemia, combined hyperlipidemia and low high-density lipoprotein hyperlipidemia were 4.90% (73/1 491), 14.76% (220/1 491), 4.83% (72/1 496), 25.27% (378/1 496), respectively. Dyslipidemia characterized by high triglyceride (HTG) and low high-density lipoprotein cholesterol (LHDL-C) accounted for 81.97% (523/638). The prevalence of dyslipidemia and HTG/LHDL-C dyslipidemia were similar, which increased significantly with age in both females and males, but was significantly higher in males. The prevalence among migrants with other occupations was highest. The prevalence of HTG/LHDL-C dyslipidemia didn't significantly increase with the duration of migration. However, the prevalence of high TG and dyslipidemia increased significantly with the duration of migration, the prevalence of high TG in age group <45 years showed the same characteristics. Conclusions: The prevalence of dyslipidemia in migrants in Inner Mongolia was high, and the main form was HTG/LHDL-C dyslipidemia. The prevalence in males, the middle aged and aged as well as those with other occupations were high. Migrants with longer duration of migration had higher prevalence of dyslipidemia.
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Affiliation(s)
- T Zhang
- School of Public Health, Peking University, Beijing 100191, China
| | - Q Zhou
- School of Public Health, Peking University, Beijing 100191, China
| | - Y G Qian
- Inner Mongolia Autonomous Region Center for Disease Control and Prevention, Hohhot 100020, China
| | - J Zhou
- School of Public Health, Peking University, Beijing 100191, China
| | - S J Wu
- School of Public Health, Peking University, Beijing 100191, China
| | - P Y Wang
- School of Public Health, Peking University, Beijing 100191, China
| | - A P Liu
- School of Public Health, Peking University, Beijing 100191, China
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Zhou YJ, Wu SJ, Chai M. [Challenge and prospect of current treatment for calcified coronary lesions]. Zhonghua Xin Xue Guan Bing Za Zhi 2017; 45:266-269. [PMID: 28545274 DOI: 10.3760/cma.j.issn.0253-3758.2017.04.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
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Tang DD, Chen P, Wu SJ. [Role of sphingosine-1-phosphate in pathogenesis of pulmonary arterial hypertension]. Zhonghua Jie He He Hu Xi Za Zhi 2017; 40:126-129. [PMID: 28209045 DOI: 10.3760/cma.j.issn.1001-0939.2017.02.010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
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Wang XD, Qu RT, Wu SJ, Duan QQ, Liu ZQ, Zhu ZW, Zhang HF, Zhang ZF. Notch fatigue behavior: Metallic glass versus ultra-high strength steel. Sci Rep 2016; 6:35557. [PMID: 27752136 PMCID: PMC5067664 DOI: 10.1038/srep35557] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2016] [Accepted: 09/30/2016] [Indexed: 11/09/2022] Open
Abstract
Studying the effect of notch on the fatigue behavior of structural materials is of significance for the reliability and safety designing of engineering structural components. In this work, we conducted notch fatigue experiments of two high-strength materials, i.e. a Ti32.8Zr30.2Ni5.3Cu9Be22.7 metallic glass (MG) and a 00Ni18Co15Mo8Ti ultra-high strength steel (CM400 UHSS), and compared their notch fatigue behavior. Experimental results showed that although both the strength and plasticity of the MG were much lower than those of the UHSS, the fatigue endurance limit of the notched MG approached to that of the notched UHSS, and the fatigue ratio of the notched MG was even higher. This interesting finding can be attributed to the unique shear banding mechanism of MG. It was found that during fatigue process abundant shear bands formed ahead of the notch root and in the vicinity of the crack in the notched MG, while limited plastic deformation was observed in the notched UHSS. The present results may improve the understanding on the fatigue mechanisms of high-strength materials and offer new strategies for structural design and engineering application of MG components with geometrical discontinuities.
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Affiliation(s)
- X D Wang
- Shenyang National Laboratory for Materials Science, Institute of Metal Research Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, P.R. China
| | - R T Qu
- Shenyang National Laboratory for Materials Science, Institute of Metal Research Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, P.R. China
| | - S J Wu
- Shenyang National Laboratory for Materials Science, Institute of Metal Research Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, P.R. China
| | - Q Q Duan
- Shenyang National Laboratory for Materials Science, Institute of Metal Research Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, P.R. China
| | - Z Q Liu
- Shenyang National Laboratory for Materials Science, Institute of Metal Research Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, P.R. China
| | - Z W Zhu
- Shenyang National Laboratory for Materials Science, Institute of Metal Research Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, P.R. China
| | - H F Zhang
- Shenyang National Laboratory for Materials Science, Institute of Metal Research Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, P.R. China
| | - Z F Zhang
- Shenyang National Laboratory for Materials Science, Institute of Metal Research Chinese Academy of Sciences, 72 Wenhua Road, Shenyang, 110016, P.R. China
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Wu SJ, Li YF, Wang YJ. [Expression of asparagine synthetase in relapsed or refractory extranodal NK/T cell lymphoma]. Nan Fang Yi Ke Da Xue Xue Bao 2016; 37:465-469. [PMID: 28446397 PMCID: PMC6744099 DOI: 10.3969/j.issn.1673-4254.2017.04.07] [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] [Received: 06/15/2016] [Indexed: 06/07/2023]
Abstract
OBJECTIVE To detect the expression level of asparagine synthetase (ASNS) in patients with relapsed or refractory extranodal NK/T cell lymphoma and explore its clinical significance. METHODS Ten patients with relapsed or refractory extranodal NK/T cell lymphoma admitted in our department from January, 2013 to January, 2016 were analyzed. The diagnoses were confirmed by pathological and immunohistochemical examination following failed chemotherapies in all cases. Branched DNA-liquidchip technique (bDNA-LCT) was used for detecting ASNS mRNA expression in paraffin-embedded tissue sections in the 10 cases of relapsed or refractory extranodal NK/T cell lymphoma and in 5 cases of chronic rhinitis. The correlations were analyzed between ASNS expression and the clinicopathological features and outcomes of the patients with failed chemotherapy regimens containing asparaginasum. RESULTS Six out of the 10 patients with relapsed or refractory extranodal NK/T cell lymphoma died due to diseaseprogression. The expression level of ASNS was significantly higher in the lymphoma tissues than in tissue specimens of chronic rhinitis (P<0.05). The expression level of ASNS was associated with the International Prognostic Index (P=0.023) in patients with relapsed or refractory extranodal NK/T cell lymphoma, and Kaplan-Meier curve showed that a high ASNS expression was correlated with a reduced overall survival and progression-free survival of the patients. CONCLUSION Asparaginasum-based chemotherapy regimens are recommended for treatment of relapsed or refractory extranodal NK/T cell lymphoma with low ASNS expressions.
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Affiliation(s)
- Shao-Jie Wu
- Department of Hematology, Southern Medical University, Zhujiang Hospital, Guangzhou 510282, China. E-mail:
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Khoo EH, Leong ESP, Wu SJ, Phua WK, Hor YL, Liu YJ. Effects of asymmetric nanostructures on the extinction difference properties of actin biomolecules and filaments. Sci Rep 2016; 6:19658. [PMID: 26792371 PMCID: PMC4726270 DOI: 10.1038/srep19658] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2015] [Accepted: 12/09/2015] [Indexed: 01/28/2023] Open
Abstract
In this paper, symmetric and asymmetric tapering on the arms of the gammadion nanostructure is proposed to enhance both local field distribution and extinction difference (ED). The asymmetric tapered gammadion with tapering fraction (TF) of 0.67 is seen to have the largest ED and spatial local field distribution, producing a large wavelength shift of more than 50 percent as compared to the untapered gammadion nanostructures when immersed in a solution of actin molecules and filaments. The optical chirality, ζ shows that the larger local field amplitudes produced by the asymmetric designs increases the rate of chiral molecules excitation. This enhanced field is strongly rotating and highly sensitive to single molecules and larger filaments. Here, we show that the ED, optical chirality, sensitivity and rate of chiral molecules excitation can be improved by incorporating asymmetric designs into chiral gammadion nanostructures through tapering.
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Affiliation(s)
- E H Khoo
- Institute of High Performance Computing, Agency for Science, Technology and Research (A*STAR), 1 Fusionopolis Way, #16-16 Connexis, Singapore 138632, Singapore
| | - Eunice S P Leong
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research (A*STAR), 3 Research Link, Singapore 117602, Singapore
| | - S J Wu
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research (A*STAR), 3 Research Link, Singapore 117602, Singapore
| | - W K Phua
- Institute of High Performance Computing, Agency for Science, Technology and Research (A*STAR), 1 Fusionopolis Way, #16-16 Connexis, Singapore 138632, Singapore
| | - Y L Hor
- Institute of High Performance Computing, Agency for Science, Technology and Research (A*STAR), 1 Fusionopolis Way, #16-16 Connexis, Singapore 138632, Singapore
| | - Y J Liu
- Institute of Materials Research and Engineering, Agency for Science, Technology and Research (A*STAR), 3 Research Link, Singapore 117602, Singapore
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Zhou X, Shi X, Ren K, Fan GT, Wu SJ, Zhao JN. Celecoxib inhibits cell growth and modulates the expression of matrix metalloproteinases in human osteosarcoma MG-63 cell line. Eur Rev Med Pharmacol Sci 2015; 19:4087-4097. [PMID: 26592832] [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: 06/05/2023]
Abstract
OBJECTIVE The goal of this study was to determine the effect of celecoxib, a selective COX-2 inhibitor, on the growth inhibition of osteosarcoma and its potential anticancer mechanisms. MATERIALS AND METHODS Human osteosarcoma cell line MG-63 was used as a model. The inhibitory effect of celecoxib on cell proliferation was assessed by MTT assay. Flow cytometric analysis was used to detect the effects of celecoxib on cell cycle and apoptosis. Western blot analysis was used to detect the protein expression of RECK, matrix metalloproteinase (MMP)-2 and MMP-9 in celecoxib-treated MG-63 cells. RESULTS MTT assays showed that at a range of concentrations (0-80 µg/ml), celecoxib significantly inhibited the MG-63 cell proliferation in a time- and concentration-dependent manner. The half maximal inhibitory concentration (IC50) of celecoxib was 47.5 µg/ml for 24 h-treatment and 19.2 µg/ml for 48 h-treatment. Flow cytometric analysis demonstrated that treatment with 20 µg/ml celecoxib led to a significant cell cycle arrest at S-phase and an enhancement of apoptosis induction in MG-63 cells at 24 or 48h. Moreover, compared with 24 h-treatment, 48 h-treatment induced more S-phase arrest and apoptosis in MG-63 cells. Western blot analyses revealed that the expression of MMP-2 and MMP-9 was markedly down-regulated but RECK, an inhibitor of MMPs, was markedly up-regulated in MG-63 cells exposed to 20 µg/ml celecoxib for 24 or 48h. Furthermore, the effects of celecoxib on the expression of these molecules were more evident with the increase of treatment time. CONCLUSIONS Celecoxib inhibits the MG-63 cells proliferation through S-phase arrest and apoptosis induction. Celecoxib-induced down-regulation of MMP-2 and MMP-9 and up-regulation of RECK may contribute to the apoptosis induction and an alteration in local tumor microenvironment. These findings suggest that celecoxib may exert at least in part of its anticancer effects via up-regulation of RECK to inhibit the expression of MMP-2 and MMP-9.
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Affiliation(s)
- X Zhou
- Department of Orthopedics, Jinling Hospital, Clinical School of Nanjing, Second Military Medical University, Nanjing, China.
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Chen C, Yan LM, Guo KY, Wang YJ, Zou F, Gu WW, Tang H, Li YL, Wu SJ. The diagnostic value of 18F-FDG-PET/CT in hematopoietic radiation toxicity: a Tibet minipig model. J Radiat Res 2012; 53:537-544. [PMID: 22843618 PMCID: PMC3393352 DOI: 10.1093/jrr/rrs006] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/05/2012] [Revised: 03/03/2012] [Accepted: 03/06/2012] [Indexed: 06/01/2023]
Abstract
This study was undertaken to assess the diagnostic value of 2-[(18)F]-fluoro-2-deoxy-D-glucose positron emission tomography with computed tomography ([(18)F]-FDG-PET/CT) in the detection of radiation toxicity in normal bone marrow using Tibet minipigs as a model. Eighteen Tibet minipigs were caged in aseptic rooms and randomly divided into six groups. Five groups (n = 3/group) were irradiated with single doses of 2, 5, 8, 11 and 14 Gy of total body irradiation (TBI) using an 8-MV X-ray linear accelerator. These pigs were evaluated with [(18)F]-FDG-PET/CT, and their marrow nucleated cells were counted. The data were initially collected at 6, 24 and 72 h after treatment and were then collected on Days 5-60 post-TBI at 5-day intervals. At 24 and 72 h post-TBI, marrow standardized uptake value (SUV) data showed a dose-dependent decrease in the radiation dose range from 2-8 Gy. Upon long-term observation, SUV and marrow nucleated cell number in the 11-Gy and 14-Gy groups showed a continuous and marked reduction throughout the entire time course, while Kaplan-Meier curves of survival showed low survival. In contrast, the SUVs in the 2-, 5- and 8-Gy groups showed early transient increases followed by a decline from approximately 72 h through Days 5-15 and then normalized or maintained low levels through the endpoint; marrow nucleated cell number and survival curves showed approximately the same trend and higher survival, respectively. Our findings suggest that [(18)F]-FDG-PET/CT may be helpful in quickly assessing the absorbed doses and predicting the prognosis in patients.
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Affiliation(s)
- Chi Chen
- Department of Hematology, Zhujiang Hospital, Southern Medical University, 253# Industry Road, 510282, Guangzhou, Guangdong, China
| | - Li-Meng Yan
- Department of Ophthalmology, Zhujiang Hospital, Southern Medical University, 253# Industry Road, 510282, Guangzhou, Guangdong, China
| | - Kun-Yuan Guo
- Department of Hematology, Zhujiang Hospital, Southern Medical University, 253# Industry Road, 510282, Guangzhou, Guangdong, China
| | - Yu-Jue Wang
- Department of Laboratory Animal Center, Southern Medical University, 1838# Guangzhou North Road, 510282, Guangzhou, Guangdong, China
| | - Fei Zou
- School of Hygiene and Tropical Medicine, Southern Medical University, 1838# Guangzhou North Road, 510282, Guangzhou, Guangdong, China
| | - Wei-Wang Gu
- Department of Laboratory Animal Center, Southern Medical University, 1838# Guangzhou North Road, 510282, Guangzhou, Guangdong, China
| | - Hua Tang
- Department of Laboratory Animal Center, Southern Medical University, 1838# Guangzhou North Road, 510282, Guangzhou, Guangdong, China
| | - Yan-Ling Li
- Center of Laboratory Medicine, Affiliated Hospital of The Medical College of Guiyang, 2# Beijing Road, 550001, Guiyang, Guizhou, China
| | - Shao-Jie Wu
- Department of Hematology, Zhujiang Hospital, Southern Medical University, 253# Industry Road, 510282, Guangzhou, Guangdong, China
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Wu SJ, Wang YJ, Guo KY, Chen C, Zhao TF, Sun MB, Gu WW, Gao YY, Han HJ, Zou F. Effect of total body X-ray irradiation on lymph node in Tibet minipig. J Radiat Res 2011; 53:18-23. [PMID: 22129563 DOI: 10.1269/jrr.11077] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The purpose of this study was to determine the time-dose-effect of total body X-ray irradiation on lymphocytes in lymph nodes and peripheral blood in Tibet minipigs. Forty-eight Tibet minipigs were assigned into 6 groups including 5 experimental groups with 9 and the control group with 3. The minipigs in experimental groups were subjected to a total body X-ray irradiation of 2, 5, 8, 11, and 14 Gy respectively. Lymph nodes and peripheral blood samples were collected at 6, 24, and 72 hours after X-ray exposure and received histological microscopy examination and apoptosis analysis. Histology observation showed that the number of lymphocytes decreased within the lymph nodes with the increase of radiation doses and exposure time. The observation of transmission electron microscopy (TEM) showed typical apoptotic cells below 11 Gy while at 14 Gy necrotic cells were dominant. The apoptotic rate of lymphocytes in the lymph nodes was positively correlated with radiation dose in the range of 2-11 Gy, and reached the maximal level (39.4 ± 2.8) at 24 hours after 11 Gy irradiation, followed by a decrease in the apoptotic rate, but still higher than that of the control group. The number of lymphocytes in the peripheral blood samples was decreased significantly by increasing of the radiation dose and exposure time. We conclude that early damage of lymphocytes by total body X-ray irradiation is dose and time dependent below 11 Gy and before 24 hours post irradiation, and that the dosage of irradiation less than 11 Gy induced apoptosis, whereas the dose at 14 Gy resulted in necrosis in lymphocytes of the lymph nodes.
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Affiliation(s)
- Shao-Jie Wu
- Department of Hemotology, Zhujiang Hospital, Southern Medical University, Guangdong, China
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Setty S, Wu SJ, Bogard A, Chejfec G, Carroll R, Benedetti E, John E, Setty A. Application of the paraboloidal model to assess mucosal changes following segmental intestinal transplantation in children. Transplant Proc 2011; 43:1823-30. [PMID: 21693285 DOI: 10.1016/j.transproceed.2011.03.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/05/2010] [Accepted: 03/01/2011] [Indexed: 10/18/2022]
Abstract
Segmental living related small intestinal transplantation (LRSITx) is a therapeutic option for conditions that present with short gut syndromes. Recovery of small intestinal mucosa after transplantation is critical to function. We examined the posttransplant mucosal changes to understand the absorptive capabilities of transplanted small intestine. The study of human subjects is constrained by limited biopsy material; therefore, we developed a technique of villus area measurement by extrapolation from two-dimensional surgical biopsy images. Using a detailed model of the villus as the gold standard, two simpler models (cylindrical and paraboloid) were tested. Comparisons with the accurate measurement revealed that the cylinder model does not compare well in early posttransplant biopsies. The paraboloid function developed in this article worked very well under all conditions. The simplicity of the paraboloid model and its robustness made high-quality estimates of the absorptive surface area from abundant data relatively easy. The remodeling expected in the initial stages of growth was also captured by this model. Time-dependent villus growth curves were obtained for transplanted bowel. Serial biopsies showed an initial "reconstruction" dip around 2 weeks after transplant, followed by continuous growth of villus surface area. An eventual plateau resulted at an average of 6 months after transplant. This growth of villi was shown to parallel the improved absorption of electrolytes, amino acids, and water.
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Affiliation(s)
- S Setty
- Department of Pathology, University of Illinois Medical Center at Chicago, Illinois, USA
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41
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Weng JY, Du X, Geng SX, Peng YW, Wang Z, Lu ZS, Wu SJ, Luo CW, Guo R, Ling W, Deng CX, Liao PJ, Xiang AP. Mesenchymal stem cell as salvage treatment for refractory chronic GVHD. Bone Marrow Transplant 2010; 45:1732-40. [PMID: 20818445 PMCID: PMC3035976 DOI: 10.1038/bmt.2010.195] [Citation(s) in RCA: 171] [Impact Index Per Article: 12.2] [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: 12/13/2022]
Abstract
Refractory chronic GVHD (cGVHD) is an important complication after allogeneic hematopoietic SCT and is prognostic of poor outcome. MSCs are involved in tissue repair and modulating immune responses in vitro and in vivo. From April 2005 to October 2008, 19 patients with refractory cGVHD were treated with MSCs derived from the BM of volunteers. The median dose of MSCs was 0.6 × 10(6) cells per kg body weight. Fourteen of 19 patients (73.7%) responded well to MSCs, achieving a CR (n=4) or a PR (n=10). The immunosuppressive agent could be tapered to less than 50% of the starting dose in 5 of 14 surviving patients, and five patients could discontinue immunosuppressive agents. The median duration between MSC administration and immunosuppressive therapy discontinuation was 324 days (range, 200-550 days). No patients experienced adverse events during or immediately after MSC infusion. The 2-year survival rate was 77.7% in this study. Clinical improvement was accompanied by the increasing ratio of CD5+CD19+/CD5-CD19+ B cells and CD8+CD28-/CD8+CD28+ T cells. In conclusion, transfusion of MSCs expanded in vitro, irrespective of the donor, might be a safe and effective salvage therapy for patients with steroid-resistant, cGVHD.
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Affiliation(s)
- J Y Weng
- Department of Haematology, Guangdong General Hospital, Academy of Medical Sciences, 106 Zhongshan Er Road, Guangzhou, Guangdong, PR China
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Meng HM, Zheng P, Wang XY, Liu C, Sui HM, Wu SJ, Zhou J, Ding YQ, Li J. Over-expression of Nanog predicts tumor progression and poor prognosis in colorectal cancer. Cancer Biol Ther 2009; 9:295-302. [PMID: 20026903 DOI: 10.4161/cbt.9.4.10666] [Citation(s) in RCA: 171] [Impact Index Per Article: 11.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
Abstract
We studied the expression and regulatory effects of ESC self-renewal molecule Nanog in colorectal cancer (CRC). Immunohistochemical analysis of 175 colorectal tumor samples showed that overexpression of Nanog was strongly correlated with poor prognosis, lymph node metastasis and Dukes classification for CRC. Univariate and multivariate survival analyses further indicated that Nanog expression was a potential prognostic factor for CRC. Gain-of-function analysis revealed that lentivirus-mediated Nanog overexpression promoted proliferation, motility and migration of human CRC cells. Interestingly, we found that Nanog played as both an inducer and a receipt of epithelial-mesenchymal transition (EMT) related signals. Nanog induced expression of Slug and Snail, two major regulator of EMT. Meanwhile, Nanog could also be regulated by Snail and initiated by TGF-β1. Our data demonstrate self-renewal gene Nanog has a prognostic role in CRC, which functions in progression of CRC by promoting proliferation, invasion, and motility of human CRC cells, and participates EMT process during CRC progression.
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Affiliation(s)
- Hui-Min Meng
- Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, People's Republic of China Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, People's Republic of China Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, Guangzhou 510
| | - Ping Zheng
- Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, People's Republic of China Guangzhou 510515, People's Republic of China Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, Guangzhou 510515, People's Republic of China
| | - Xiao-Yan Wang
- Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, People's Republic of China Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, People's Republic of China Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, Guangzhou 5105
| | - Chao Liu
- Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, People's Republic of China
| | - Hong-Mei Sui
- Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, People's Republic of China
| | - Shao-Jie Wu
- Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, People's Republic of China
| | - Jun Zhou
- Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, People's Republic of China
| | - Yan-Qing Ding
- Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, People's Republic of China Department of Pathology, School of Basic Medical Sciences, Southern Medical University, Guangzhou 510515, People's Republic of China Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, Guangzhou 510
| | - Jianming Li
- Department of Pathology, Guangdong Provincial Key Laboratory of Molecular Tumor Pathology, Nanfang Hospital, Southern Medical University, Guangzhou, P.R. China 51051
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Wu SJ, Zhang LL, Wang JD, Chen JM. Bacillus circulans WZ-12—a newly discovered aerobic dichloromethane-degrading methylotrophic bacterium. Appl Microbiol Biotechnol 2007; 76:1289-96. [PMID: 17687552 DOI: 10.1007/s00253-007-1100-z] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/11/2007] [Revised: 06/21/2007] [Accepted: 06/25/2007] [Indexed: 10/23/2022]
Abstract
A novel dichloromethane (DCM)-degrading bacterial strain named WZ-12 (GenBank accession no. EF100968) was isolated and identified as Bacillus circulans based on standard morphological and physiological properties and nucleotide sequence analysis of enzymatically amplified 16S ribosomal deoxyribonucleic acid. DCM dehalogenase from B. circulans WZ-12 was purified to 8.27-fold with a yield of 34.83%. The electrophoretically homogeneous-purified enzyme exhibited a specific activity of 118.82 U/mg. Sodium dodecyl sulfate-polyacrylamide gel electrophoresis of purified DCM dehalogenase gave a distinct band with an estimated molecular mass of 20,000 +/- 1,000.
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Affiliation(s)
- S J Wu
- College of Biological and Environmental Engineering, Zhejiang University of Technology, Hangzhou 310032, People's Republic of China
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Ng LT, Wu SJ, Tsai JY, Lai MN. Antioxidant activities of cultured Armillariella mellea. Prikl Biokhim Mikrobiol 2007; 43:495-500. [PMID: 17929580] [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: 05/25/2023]
Abstract
This study aimed to evaluate the antioxidant activities of a cultured medicinal fungus--Armillariella mellea (Vahl. ex Fr.) Karst. (AM). Three antioxidant assay systems, namely cytochrome c, xanthine oxidase inhibition and FeCl2-ascorbic acid stimulated lipid peroxidation in rat tissue homogenate tests, were used. Total flavonoid and phenol contents of AM extracts were also analyzed. Results showed that both aqueous (AM-H2O) and ethanolic (AM-EtOH) extracts of solid state cultured AM showed antioxidant activities in a concentration-dependent manner. At concentrations 1-100 microg/ml, the free radical scavenging activity was 73.7-92.1% for AM-H2O, and 60.0-90.8% for AM-EtOH. These extracts also showed an inhibitory effect on xanthine oxidase activity, but with a lesser potency (IC50 - 9.17 microg/ml for AM-H2O and 7.48 microg/ml for AM-EtOH). In general, AM-H2O showed a stronger anti-lipid peroxidation activity on different rat's tissues than AM-EtOH. However, both AM extracts displayed a weak inhibitory effect on lipid peroxidation in plasma. Interestingly, the anti-lipid peroxidation activity of AM-H2O (IC50 - 6.66 microg/ml) in brain homogenate was as good as alpha-tocopherol (IC50 - 5.42 microg/ml). AM-H2O (80.0 mg/g) possessed a significant higher concentration of total flavonoids than AM-EtOH (30.0 mg/g), whereas no difference was noted in the total phenol content between these two extracts. These results conclude that AM extracts possess potent free radical scavenging and anti-lipid peroxidation activities, especially the AM-H20 in the brain homogenate.
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Affiliation(s)
- L T Ng
- Department of Biotechnology, Tajen University, Yanpu Shiang, Pingtung, Taiwan.
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Lee JD, Chang TC, Huang CH, Wu SJ, Chen CJ. Computer-aided diagnosis system for acute stroke using diffusion weighted images with volume calculation. Conf Proc IEEE Eng Med Biol Soc 2007; 2004:1529-32. [PMID: 17271988 DOI: 10.1109/iembs.2004.1403468] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
The diffusion weighted image (DWI) technique is routinely used for diagnosis and treatment of early stroke due to its superior performance, especially when it is compared with conventional magnetic resonance image (MRI) for detection of acute ischemic stroke. Using DWI examination, This work has proposed a computer-aided diagnosis system, which can effectively calculate the volume size of a lesion and provide clinical doctor the 3D reconstruction data of the lesion. The potential benefits of using our system include the higher accuracy of acute stroke lesion definition, the reduced time and procedure of calculating the volume of a lesion, and providing 3D reconstruction image of stroke patients, which can effectively assist doctors in making more accurate diagnoses and treating patients in a more convenient way. Compared with the traditional method, the experimental results have shown the superior performance of this proposed system.
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Affiliation(s)
- J D Lee
- Dept. of Electr. Eng, Chang Gung Univ., Tao-Yuan, Taiwan
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Wu SJ, Tsai JY, Chang SP, Lin DL, Wang SS, Huang SN, Ng LT. Supercritical carbon dioxide extract exhibits enhanced antioxidant and anti-inflammatory activities of Physalis peruviana. J Ethnopharmacol 2006; 108:407-13. [PMID: 16820275 DOI: 10.1016/j.jep.2006.05.027] [Citation(s) in RCA: 34] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/26/2006] [Accepted: 05/26/2006] [Indexed: 05/10/2023]
Abstract
Physalis peruviana L. (PP) is a medicinal herb widely used in folk medicine. In this study, supercritical carbon dioxide (SFE-CO2) method was employed to obtain three different PP extracts, namely SCEPP-0, SCEPP-4 and SCEPP-5. The total flavonoid and phenol concentrations, as well as antioxidant and anti-inflammatory activities of these extracts were analyzed and compared with aqueous and ethanolic PP extracts. Among all the extracts tested, SCEPP-5 demonstrated the highest total flavonoid (234.63+/-9.61 mg/g) and phenol (90.80+/-2.21 mg/g) contents. At concentrations 0.1-30 microg/ml, SCEPP-5 also demonstrated the strongest superoxide anion scavenging activity and xanthine oxidase inhibitory effect. At 30 microg/ml, SCEPP-5 significantly prevented lipopolysaccharide (LPS; 1 microg/ml)-induced cell cytotoxicity in murine macrophage (Raw 264.7) cells. At 10-50 microg/ml, it also significantly inhibited LPS-induced NO release and PGE2 formation in a dose-dependent pattern. SCEPP-5 at 30 microg/ml remarkably blocked the LPS induction of inducible nitric oxide synthase (iNOS) and cyclooxygenase-2 (COX-2) expression. Taken together, these results suggest that SCEPP-5, an extract of SFE-CO2, displayed the strongest antioxidant and anti-inflammatory activities as compared to other extracts. Its protection against LPS-induced inflammation could be through the inhibition of iNOS and COX-2 expression.
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Affiliation(s)
- S J Wu
- Department of Health and Nutrition, Chia-Nan University of Pharmacy and Technology, Tainan, Taiwan
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Wang SY, Wu SJ, Thottappilly G, Locy RD, Singh NK. Molecular cloning and structural analysis of the gene encoding Bacillus cereus exochitinase Chi36. J Biosci Bioeng 2005; 92:59-66. [PMID: 16233059 DOI: 10.1263/jbb.92.59] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2000] [Accepted: 04/18/2001] [Indexed: 11/17/2022]
Abstract
The chi36 gene encoding exochitinase Chi36 was cloned from a Bacillus cereus 6E1 subgenomic library. The chi36 open reading frame is 1080 bp long encoding a Chi36 precursor protein of 360 amino acids, consisting of a 27 amino acid N-terminal signal peptide and a 333 amino acid sequence found in the mature Chi36 protein of 36.346 kDa. Chi36 shows significant amino acid sequence similarity to many bacterial chitinases, but has highest similarity to B. circulans WL-12 chitinase D. Chi36 belongs to subfamily B of bacterial chitinases in family 18 of glycosyl hydrolases. Chi36 shows a simple and compact structural organization composed of an N-terminal signal peptide and a C-terminal (beta/alpha)8-barrel catalytic domain (CaD). The Chi36 signal peptide is recognized by Escherichia coli, allowing Chi36 secretion. Chi36 is the first one-domain (CaD) bacterial chitinase cloned from B. cereus.
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Affiliation(s)
- S Y Wang
- Department of Biological Sciences, 101 Rouse Life Sciences Building, Auburn University, Auburn, Alabama 36849, USA
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Abstract
Thermomechanical controlled rolling (TMCR) has been widely used as an effective method to improve the properties of steels. In the present paper, two commercial TMCR microalloyed steels were investigated. The grain size distributions and grain boundary misorientation angles were measured using electron backscattered diffraction patterns obtained using orientation imaging microscopy (OIM). The equivalent grain diameters were also measured using optical microscopy. Mixed coarse- and fine-grained regions were observed and the microhardness values were measured for both areas. Grain boundary misorientation angle distributions showed that the magnitude of mesotexture developed in the steel is dependent upon the rolling passes, the reduction ratio and the rolling temperatures including the finish rolling temperature. The surface layer, up to 2 mm depth, in Com-A steel had about 55% of grain boundaries with a misorientation angle below 12 degrees, much higher than in the central area ( approximately 30%), whereas Com-B steel showed similar distributions from the rolling surface to the centre. Misorientation results obtained from laboratory rolled steel plates with various TMCR procedures are also discussed as are OIM results from Charpy impact brittle fracture surfaces examining the effect of misorientation on crack propagation.
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Affiliation(s)
- S J Wu
- Department of Metallurgy and Materials, The University of Birmingham, Edgbaston, Birmingham B15 2TT, UK.
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Marovich M, Grouard-Vogel G, Louder M, Eller M, Sun W, Wu SJ, Putvatana R, Murphy G, Tassaneetrithep B, Burgess T, Birx D, Hayes C, Schlesinger-Frankel S, Mascola J. Human dendritic cells as targets of dengue virus infection. J Investig Dermatol Symp Proc 2001; 6:219-24. [PMID: 11924831 DOI: 10.1046/j.0022-202x.2001.00037.x] [Citation(s) in RCA: 118] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Dengue virus infections are an emerging global threat. Severe dengue infection is manifested as dengue hemorrhagic fever and dengue shock syndrome, both of which can be fatal complications. Factors predisposing to complicated disease and pathogenesis of severe infections are discussed. Using immunohistochemistry, immunofluorescence, flow cytometry, and ELISA techniques, we studied the cellular targets of dengue virus infection, at both the clinical (in vivo) and the laboratory (in vitro) level. Resident skin dendritic cells are targets of dengue virus infection as demonstrated in a skin biopsy from a dengue vaccine recipient. We show that factors influencing infection of monocytes/macrophages and dendritic cells are different. Immature dendritic cells were found to be the cells most permissive for dengue infection and maybe early targets for infection. Immature dendritic cells exposed to dengue virus produce TNF-alpha protein. Some of these immature dendritic cells undergo TNF-alpha mediated maturation as a consequence of exposure to the dengue virus.
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Affiliation(s)
- M Marovich
- Division of Retrovirology, Walter Reed Army Institute of Research and Henry M. Jackson Foundation, Rockville, Maryland 20850, USA.
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Jeong J, Toida T, Muneta Y, Kosiishi I, Imanari T, Linhardt RJ, Choi HS, Wu SJ, Kim YS. Localization and characterization of acharan sulfate in the body of the giant African snail Achatina fulica. Comp Biochem Physiol B Biochem Mol Biol 2001; 130:513-9. [PMID: 11691628 DOI: 10.1016/s1096-4959(01)00468-7] [Citation(s) in RCA: 22] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Acharan sulfate is a glycosaminoglycan (GAG), having the structure -->4)-2-acetamido-2-deoxy-alpha-D-glucopyranose(1-->4)-2-sulfo-alpha-L-idopyranosyluronic acid (1-->, isolated from the body of the giant African snail Achatina fulica. This GAG represents 3-5% of the dry weight of this snail's soft body tissues. Frozen sections and polyester wax sections of the snail's body were stained by Alcian blue-periodic acid-Schiff's reagent (PAS) to localize acharan sulfate. Alcian blue staining indicated that GAG was mainly secreted into the outer surface of the body from internal granules. A highly mucous material was collected and treated and the acharan sulfate was recovered by ethanol and cetyl pyridinium chloride precipitation. Crude acharan sulfate was purified by DEAE-Sephacel ion-exchange chromatography. Depolymerization of intact mucus and purified acharan sulfate fractions by heparin lyase II (heparitinase I) from Flavobacterium heparinum produced an unsaturated disaccharide as a major product, establishing the repeating unit of acharan sulfate. These results demonstrate that mucus in the granule and secreted to the outside of the body is composed entirely of acharan sulfate.
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Affiliation(s)
- J Jeong
- Natural Products Research Institute, Seoul National University, Seoul 110-460, South Korea
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