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Zhang TX, Coughlin AL, Lu CK, Heremans JJ, Zhang SX. Recent progress on topological semimetal IrO 2: electronic structures, synthesis, and transport properties. J Phys Condens Matter 2024; 36:273001. [PMID: 38597335 DOI: 10.1088/1361-648x/ad3603] [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: 12/01/2023] [Accepted: 03/20/2024] [Indexed: 04/11/2024]
Abstract
5dtransition metal oxides, such as iridates, have attracted significant interest in condensed matter physics throughout the past decade owing to their fascinating physical properties that arise from intrinsically strong spin-orbit coupling (SOC) and its interplay with other interactions of comparable energy scales. Among the rich family of iridates, iridium dioxide (IrO2), a simple binary compound long known as a promising catalyst for water splitting, has recently been demonstrated to possess novel topological states and exotic transport properties. The strong SOC and the nonsymmorphic symmetry that IrO2possesses introduce symmetry-protected Dirac nodal lines (DNLs) within its band structure as well as a large spin Hall effect in the transport. Here, we review recent advances pertaining to the study of this unique SOC oxide, with an emphasis on the understanding of the topological electronic structures, syntheses of high crystalline quality nanostructures, and experimental measurements of its fundamental transport properties. In particular, the theoretical origin of the presence of the fourfold degenerate DNLs in band structure and its implications in the angle-resolved photoemission spectroscopy measurement and in the spin Hall effect are discussed. We further introduce a variety of synthesis techniques to achieve IrO2nanostructures, such as epitaxial thin films and single crystalline nanowires, with the goal of understanding the roles that each key parameter plays in the growth process. Finally, we review the electrical, spin, and thermal transport studies. The transport properties under variable temperatures and magnetic fields reveal themselves to be uniquely sensitive and modifiable by strain, dimensionality (bulk, thin film, nanowire), quantum confinement, film texture, and disorder. The sensitivity, stemming from the competing energy scales of SOC, disorder, and other interactions, enables the creation of a variety of intriguing quantum states of matter.
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Affiliation(s)
- T X Zhang
- Department of Physics, Indiana University, Bloomington, IN 47405, United States of America
| | - A L Coughlin
- Department of Physics, Indiana University, Bloomington, IN 47405, United States of America
| | - Chi-Ken Lu
- Department of Mathematics and Computer Science, Rutgers University, Newark, NJ 07102, United States of America
| | - J J Heremans
- Department of Physics, Virginia Tech, Blacksburg, VA 24061, United States of America
| | - S X Zhang
- Department of Physics, Indiana University, Bloomington, IN 47405, United States of America
- Quantum Science and Engineering Center, Indiana University, Bloomington, IN 47405, United States of America
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Yan YW, Liu XK, Zhang SX, Tian QF. Real-world 10-year retrospective study of the guidelines for diagnosis and treatment of primary liver cancer in China. World J Gastrointest Oncol 2023; 15:858-877. [DOI: 10.4251/wjgo.v15.i5.858] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 05/12/2023] Open
Abstract
BACKGROUND Hepatocellular carcinoma (HCC) is a common malignant tumor worldwide. Many regions across the world have issued various HCC diagnosis and treatment protocols to improve the diagnosis and targeted treatment of patients with HCC. However, real-world studies analysing the practice, application value, and existing problems of the China Liver Cancer (CNLC) staging system are scarce.
AIM To analyze the current situation and problems associated with the Guidelines for Diagnosis and Treatment of Primary Liver Cancer in China.
METHODS We collected the medical records of all patients with HCC admitted to the First Affiliated Hospital of Zhengzhou University from January 1, 2011 to December 31, 2019, and recorded the hospitalization information of those patients until December 31, 2020. All information on the diagnosis and treatment of the target patients was recorded, and their demographic and sociological characteristics, CNLC stages, screening situations, and treatment methods and effects were analyzed. The survival status of the patients was obtained from follow-up data.
RESULTS This study included the medical records of 3022 patients with HCC. Among these cases, 304 patients were screened before HCC diagnosis; their early-stage diagnosis rate was 69.08%, which was significantly higher than that of patients with HCC who were diagnosed without screening and early detection (33.74%). Herein, patients with no clinical outcome at discharge were followed up, and the survival information of 1128 patients was obtained. A Cox model was used to analyse independent risk factors affecting overall survival, which were revealed as age > 50 years, no screening, alpha-fetoprotein > 400 ng/mL, Child–Pugh grade B, and middle and late CNLC stages. Based on the Cox model survival analysis, in our study, patients with HCC identified via screening had significant advantages in overall and tumor-free survival after hepatectomy.
CONCLUSION Early diagnosis and treatment can be achieved by screening groups at high risk for HCC based on the guidelines; however, real-world compliance is poor.
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Affiliation(s)
- Yun-Wei Yan
- Department of Epidemiology and Health Statistics, College of Public Health, Zhengzhou University, Zhengzhou 450001, Henan Province, China
| | - Xin-Kui Liu
- Department of Medical Records Management, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450001, Henan Province, China
| | - Shun-Xiang Zhang
- Department of Epidemiology and Health Statistics and Henan Key Laboratory for Tumour Epidemiology, College of Public Health, Zhengzhou University, Zhengzhou 450001, Henan Province, China
| | - Qing-Feng Tian
- Department of Epidemiology and Health Statistics, College of Public Health, Zhengzhou University, Zhengzhou 450001, Henan Province, China
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Yan YW, Liu XK, Zhang SX, Tian QF. Real-world 10-year retrospective study of the guidelines for diagnosis and treatment of primary liver cancer in China. World J Gastrointest Oncol 2023; 15:859-877. [PMID: 37275443 PMCID: PMC10237028 DOI: 10.4251/wjgo.v15.i5.859] [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] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/05/2022] [Revised: 03/06/2023] [Accepted: 04/04/2023] [Indexed: 05/12/2023] Open
Abstract
BACKGROUND Hepatocellular carcinoma (HCC) is a common malignant tumor worldwide. Many regions across the world have issued various HCC diagnosis and treatment protocols to improve the diagnosis and targeted treatment of patients with HCC. However, real-world studies analysing the practice, application value, and existing problems of the China Liver Cancer (CNLC) staging system are scarce.
AIM To analyze the current situation and problems associated with the Guidelines for Diagnosis and Treatment of Primary Liver Cancer in China.
METHODS We collected the medical records of all patients with HCC admitted to the First Affiliated Hospital of Zhengzhou University from January 1, 2011 to December 31, 2019, and recorded the hospitalization information of those patients until December 31, 2020. All information on the diagnosis and treatment of the target patients was recorded, and their demographic and sociological characteristics, CNLC stages, screening situations, and treatment methods and effects were analyzed. The survival status of the patients was obtained from follow-up data.
RESULTS This study included the medical records of 3022 patients with HCC. Among these cases, 304 patients were screened before HCC diagnosis; their early-stage diagnosis rate was 69.08%, which was significantly higher than that of patients with HCC who were diagnosed without screening and early detection (33.74%). Herein, patients with no clinical outcome at discharge were followed up, and the survival information of 1128 patients was obtained. A Cox model was used to analyse independent risk factors affecting overall survival, which were revealed as age > 50 years, no screening, alpha-fetoprotein > 400 ng/mL, Child–Pugh grade B, and middle and late CNLC stages. Based on the Cox model survival analysis, in our study, patients with HCC identified via screening had significant advantages in overall and tumor-free survival after hepatectomy.
CONCLUSION Early diagnosis and treatment can be achieved by screening groups at high risk for HCC based on the guidelines; however, real-world compliance is poor.
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Affiliation(s)
- Yun-Wei Yan
- Department of Epidemiology and Health Statistics, College of Public Health, Zhengzhou University, Zhengzhou 450001, Henan Province, China
| | - Xin-Kui Liu
- Department of Medical Records Management, The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450001, Henan Province, China
| | - Shun-Xiang Zhang
- Department of Epidemiology and Health Statistics and Henan Key Laboratory for Tumour Epidemiology, College of Public Health, Zhengzhou University, Zhengzhou 450001, Henan Province, China
| | - Qing-Feng Tian
- Department of Epidemiology and Health Statistics, College of Public Health, Zhengzhou University, Zhengzhou 450001, Henan Province, China
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Sun DF, Liang C, Zhang SX, Yuan TJ, Chen Y. [Open neck injury with common carotid artery penetrating injury caused by gun screw: a case report]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2022; 57:1344-1346. [PMID: 36404663 DOI: 10.3760/cma.j.cn115330-20220418-00199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Affiliation(s)
- D F Sun
- School of Clinical Medicine, Weifang Medical University, Weifang 261053, China
| | - C Liang
- Department of Otolaryngology, Weifang People's Hospital, Weifang 261000, China
| | - S X Zhang
- Department of Otolaryngology, Weifang People's Hospital, Weifang 261000, China
| | - T J Yuan
- Department of Otolaryngology, Weifang People's Hospital, Weifang 261000, China
| | - Y Chen
- Department of Otolaryngology, Weifang People's Hospital, Weifang 261000, China
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Xu PF, Yue JQ, Jiang L, Zhang SX, Wu D, Guo F. [Secretory carcinoma derived from bronchial mucosal glands: report of a case]. Zhonghua Bing Li Xue Za Zhi 2021; 50:1191-1193. [PMID: 34619880 DOI: 10.3760/cma.j.cn112151-20210109-00022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- P F Xu
- Department of Pathology,Hubei Cancer Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430070, China
| | - J Q Yue
- Department of Pathology,Hubei Cancer Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430070, China
| | - L Jiang
- Department of Head and Neck Surgery, Hubei Cancer Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430070, China
| | - S X Zhang
- Department of Radiology, Hubei Cancer Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430070, China
| | - D Wu
- Department of Pathology,Hubei Cancer Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430070, China
| | - F Guo
- Department of Pathology,Hubei Cancer Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430070, China
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Zhang M, Li YG, Wang KY, Wang X, Dai LP, Wang P, Ye H, Shi JX, Yang XA, Zhang SX, Zhang JY. [Cost-effectiveness of anti-tumor associated antigen autoantibody screening for hepatocellular carcinoma in the population with chronic hepatitis B-related cirrhosis]. Zhonghua Yi Xue Za Zhi 2021; 101:2544-2551. [PMID: 34407581 DOI: 10.3760/cma.j.cn112137-20201229-03502] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To evaluate the cost-effectiveness of anti-tumor associated antigen autoantibody (TAAb) for hepatocellular carcinoma (HCC) screening in cirrhosis population with chronic hepatitis B (CHB). Methods: A simulated cohort of 40-year-old patients with CHB cirrhosis was established with a sample size of 10 000. Using TAAb screening alone or TAAb and AFP screening in parallel (TAAb + AFP) as the research strategy, and liver ultrasound and AFP screening in parallel (liver ultrasound + AFP) as the control strategy, the decision analysis Markov model was constructed and the model validity was evaluated. The 6-month cycle was simulated using TreeAge Pro 2020 software. Cost and quality-adjusted life years (QALY) were calculated. Incremental cost-effectiveness ratio (ICER) was used to compare the two strategies, and sensitivity analysis was used to evaluate the uncertainty of results. Results: The Markov model had a total of 11 outcomes, of which 7 were natural outcomes and 4 wereclinical intervention outcomes, and the goodness of fit was 0.969. The lifetime screening cost of TAAb+AFP strategy for HCC screening was 249 612 yuan/case, and the QALY per capita was 7.704 years. Compared with liver ultrasound +AFP strategy (247 805 yuan/case), the total health cost increased by 1 807 yuan/case, and the QALY obtained was 0.014. The ICER was 127 635 yuan /QALY. When the TAAb screening fee was higher than 889.552 yuan, or the discount rate was higher than 0.068, or the antiviral treatment compliance was lower than 45.1%, ICER > 212 676 yuan /QALY. When the single TAAb screening fee was 400-600 yuan, the TAAB+AFP strategy had cost effective value. When the willingness to pay was 70 892, 141 784 and 212 676 yuan /QALY, the probability of cost-effectiveness of TAAb+AFP strategy was 70.6%, 75.3% and 77.8%, respectively. Conclusion: It is cost-effective to use TAAb+AFP for early screening of liver cancer in Chinese population with CHB cirrhosis.
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Affiliation(s)
- M Zhang
- Department of Epidemiology and Health statistics & Henan Key Laboratory for Tumor Epidemiology, College of Public Health, Zhengzhou University, Zhengzhou 450001, China
| | - Y G Li
- Department of Epidemiology and Health statistics & Henan Key Laboratory for Tumor Epidemiology, College of Public Health, Zhengzhou University, Zhengzhou 450001, China
| | - K Y Wang
- Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - X Wang
- Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - L P Dai
- Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - P Wang
- Department of Epidemiology and Health statistics & Henan Key Laboratory for Tumor Epidemiology, College of Public Health, Zhengzhou University, Zhengzhou 450001, China
| | - H Ye
- Department of Epidemiology and Health statistics & Henan Key Laboratory for Tumor Epidemiology, College of Public Health, Zhengzhou University, Zhengzhou 450001, China
| | - J X Shi
- Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - X A Yang
- Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - S X Zhang
- Henan Institute of Medical and Pharmaceutical Sciences, Zhengzhou University, Zhengzhou 450001, China
| | - J Y Zhang
- Department of Epidemiology and Health statistics & Henan Key Laboratory for Tumor Epidemiology, College of Public Health, Zhengzhou University, Zhengzhou 450001, China
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7
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Alemanno F, An Q, Azzarello P, Barbato FCT, Bernardini P, Bi XJ, Cai MS, Catanzani E, Chang J, Chen DY, Chen JL, Chen ZF, Cui MY, Cui TS, Cui YX, Dai HT, D'Amone A, De Benedittis A, De Mitri I, de Palma F, Deliyergiyev M, Di Santo M, Dong TK, Dong ZX, Donvito G, Droz D, Duan JL, Duan KK, D'Urso D, Fan RR, Fan YZ, Fang K, Fang F, Feng CQ, Feng L, Fusco P, Gao M, Gargano F, Gong K, Gong YZ, Guo DY, Guo JH, Guo XL, Han SX, Hu YM, Huang GS, Huang XY, Huang YY, Ionica M, Jiang W, Kong J, Kotenko A, Kyratzis D, Lei SJ, Li S, Li WL, Li X, Li XQ, Liang YM, Liu CM, Liu H, Liu J, Liu SB, Liu WQ, Liu Y, Loparco F, Luo CN, Ma M, Ma PX, Ma T, Ma XY, Marsella G, Mazziotta MN, Mo D, Niu XY, Pan X, Parenti A, Peng WX, Peng XY, Perrina C, Qiao R, Rao JN, Ruina A, Salinas MM, Shang GZ, Shen WH, Shen ZQ, Shen ZT, Silveri L, Song JX, Stolpovskiy M, Su H, Su M, Sun ZY, Surdo A, Teng XJ, Tykhonov A, Wang H, Wang JZ, Wang LG, Wang S, Wang XL, Wang Y, Wang YF, Wang YZ, Wang ZM, Wei DM, Wei JJ, Wei YF, Wen SC, Wu D, Wu J, Wu LB, Wu SS, Wu X, Xia ZQ, Xu HT, Xu ZH, Xu ZL, Xu ZZ, Xue GF, Yang HB, Yang P, Yang YQ, Yao HJ, Yu YH, Yuan GW, Yuan Q, Yue C, Zang JJ, Zhang F, Zhang SX, Zhang WZ, Zhang Y, Zhang YJ, Zhang YL, Zhang YP, Zhang YQ, Zhang Z, Zhang ZY, Zhao C, Zhao HY, Zhao XF, Zhou CY, Zhu Y. Measurement of the Cosmic Ray Helium Energy Spectrum from 70 GeV to 80 TeV with the DAMPE Space Mission. Phys Rev Lett 2021; 126:201102. [PMID: 34110215 DOI: 10.1103/physrevlett.126.201102] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/05/2021] [Revised: 03/25/2021] [Accepted: 04/06/2021] [Indexed: 06/12/2023]
Abstract
The measurement of the energy spectrum of cosmic ray helium nuclei from 70 GeV to 80 TeV using 4.5 years of data recorded by the Dark Matter Particle Explorer (DAMPE) is reported in this work. A hardening of the spectrum is observed at an energy of about 1.3 TeV, similar to previous observations. In addition, a spectral softening at about 34 TeV is revealed for the first time with large statistics and well controlled systematic uncertainties, with an overall significance of 4.3σ. The DAMPE spectral measurements of both cosmic protons and helium nuclei suggest a particle charge dependent softening energy, although with current uncertainties a dependence on the number of nucleons cannot be ruled out.
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Affiliation(s)
- F Alemanno
- Gran Sasso Science Institute (GSSI), Via Iacobucci 2, I-67100 L'Aquila, Italy
- Istituto Nazionale di Fisica Nucleare (INFN)-Laboratori Nazionali del Gran Sasso, I-67100 Assergi, L'Aquila, Italy
| | - Q An
- State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei 230026, China
- Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China
| | - P Azzarello
- Department of Nuclear and Particle Physics, University of Geneva, CH-1211 Geneva, Switzerland
| | - F C T Barbato
- Gran Sasso Science Institute (GSSI), Via Iacobucci 2, I-67100 L'Aquila, Italy
- Istituto Nazionale di Fisica Nucleare (INFN)-Laboratori Nazionali del Gran Sasso, I-67100 Assergi, L'Aquila, Italy
| | - P Bernardini
- Dipartimento di Matematica e Fisica E. De Giorgi, Università del Salento, I-73100 Lecce, Italy
- Istituto Nazionale di Fisica Nucleare (INFN)-Sezione di Lecce, I-73100 Lecce, Italy
| | - X J Bi
- Institute of High Energy Physics, Chinese Academy of Sciences, Yuquan Road 19B, Beijing 100049, China
- University of Chinese Academy of Sciences, Yuquan Road 19A, Beijing 100049, China
| | - M S Cai
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
- School of Astronomy and Space Science, University of Science and Technology of China, Hefei 230026, China
| | - E Catanzani
- Istituto Nazionale di Fisica Nucleare (INFN)-Sezione di Perugia, I-06123 Perugia, Italy
| | - J Chang
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
- School of Astronomy and Space Science, University of Science and Technology of China, Hefei 230026, China
| | - D Y Chen
- University of Chinese Academy of Sciences, Yuquan Road 19A, Beijing 100049, China
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
| | - J L Chen
- Institute of Modern Physics, Chinese Academy of Sciences, Nanchang Road 509, Lanzhou 730000, China
| | - Z F Chen
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
- School of Astronomy and Space Science, University of Science and Technology of China, Hefei 230026, China
| | - M Y Cui
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
| | - T S Cui
- National Space Science Center, Chinese Academy of Sciences, Nanertiao 1, Zhongguancun, Haidian district, Beijing 100190, China
| | - Y X Cui
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
- School of Astronomy and Space Science, University of Science and Technology of China, Hefei 230026, China
| | - H T Dai
- State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei 230026, China
- Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China
| | - A D'Amone
- Dipartimento di Matematica e Fisica E. De Giorgi, Università del Salento, I-73100 Lecce, Italy
- Istituto Nazionale di Fisica Nucleare (INFN)-Sezione di Lecce, I-73100 Lecce, Italy
| | - A De Benedittis
- Dipartimento di Matematica e Fisica E. De Giorgi, Università del Salento, I-73100 Lecce, Italy
- Istituto Nazionale di Fisica Nucleare (INFN)-Sezione di Lecce, I-73100 Lecce, Italy
| | - I De Mitri
- Gran Sasso Science Institute (GSSI), Via Iacobucci 2, I-67100 L'Aquila, Italy
- Istituto Nazionale di Fisica Nucleare (INFN)-Laboratori Nazionali del Gran Sasso, I-67100 Assergi, L'Aquila, Italy
| | - F de Palma
- Dipartimento di Matematica e Fisica E. De Giorgi, Università del Salento, I-73100 Lecce, Italy
- Istituto Nazionale di Fisica Nucleare (INFN)-Sezione di Lecce, I-73100 Lecce, Italy
| | - M Deliyergiyev
- Department of Nuclear and Particle Physics, University of Geneva, CH-1211 Geneva, Switzerland
| | - M Di Santo
- Dipartimento di Matematica e Fisica E. De Giorgi, Università del Salento, I-73100 Lecce, Italy
- Istituto Nazionale di Fisica Nucleare (INFN)-Sezione di Lecce, I-73100 Lecce, Italy
| | - T K Dong
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
| | - Z X Dong
- National Space Science Center, Chinese Academy of Sciences, Nanertiao 1, Zhongguancun, Haidian district, Beijing 100190, China
| | - G Donvito
- Istituto Nazionale di Fisica Nucleare (INFN)-Sezione di Bari, I-70125 Bari, Italy
| | - D Droz
- Department of Nuclear and Particle Physics, University of Geneva, CH-1211 Geneva, Switzerland
| | - J L Duan
- Institute of Modern Physics, Chinese Academy of Sciences, Nanchang Road 509, Lanzhou 730000, China
| | - K K Duan
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
| | - D D'Urso
- Istituto Nazionale di Fisica Nucleare (INFN)-Sezione di Perugia, I-06123 Perugia, Italy
| | - R R Fan
- Institute of High Energy Physics, Chinese Academy of Sciences, Yuquan Road 19B, Beijing 100049, China
| | - Y Z Fan
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
- School of Astronomy and Space Science, University of Science and Technology of China, Hefei 230026, China
| | - K Fang
- Institute of High Energy Physics, Chinese Academy of Sciences, Yuquan Road 19B, Beijing 100049, China
| | - F Fang
- Institute of Modern Physics, Chinese Academy of Sciences, Nanchang Road 509, Lanzhou 730000, China
| | - C Q Feng
- State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei 230026, China
- Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China
| | - L Feng
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
| | - P Fusco
- Istituto Nazionale di Fisica Nucleare (INFN)-Sezione di Bari, I-70125 Bari, Italy
- Dipartimento di Fisica "M. Merlin" dell'Università e del Politecnico di Bari, I-70126 Bari, Italy
| | - M Gao
- Institute of High Energy Physics, Chinese Academy of Sciences, Yuquan Road 19B, Beijing 100049, China
| | - F Gargano
- Istituto Nazionale di Fisica Nucleare (INFN)-Sezione di Bari, I-70125 Bari, Italy
| | - K Gong
- Institute of High Energy Physics, Chinese Academy of Sciences, Yuquan Road 19B, Beijing 100049, China
| | - Y Z Gong
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
| | - D Y Guo
- Institute of High Energy Physics, Chinese Academy of Sciences, Yuquan Road 19B, Beijing 100049, China
| | - J H Guo
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
- School of Astronomy and Space Science, University of Science and Technology of China, Hefei 230026, China
| | - X L Guo
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
- School of Astronomy and Space Science, University of Science and Technology of China, Hefei 230026, China
| | - S X Han
- National Space Science Center, Chinese Academy of Sciences, Nanertiao 1, Zhongguancun, Haidian district, Beijing 100190, China
| | - Y M Hu
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
| | - G S Huang
- State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei 230026, China
- Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China
| | - X Y Huang
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
- School of Astronomy and Space Science, University of Science and Technology of China, Hefei 230026, China
| | - Y Y Huang
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
| | - M Ionica
- Istituto Nazionale di Fisica Nucleare (INFN)-Sezione di Perugia, I-06123 Perugia, Italy
| | - W Jiang
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
- School of Astronomy and Space Science, University of Science and Technology of China, Hefei 230026, China
| | - J Kong
- Institute of Modern Physics, Chinese Academy of Sciences, Nanchang Road 509, Lanzhou 730000, China
| | - A Kotenko
- Department of Nuclear and Particle Physics, University of Geneva, CH-1211 Geneva, Switzerland
| | - D Kyratzis
- Gran Sasso Science Institute (GSSI), Via Iacobucci 2, I-67100 L'Aquila, Italy
- Istituto Nazionale di Fisica Nucleare (INFN)-Laboratori Nazionali del Gran Sasso, I-67100 Assergi, L'Aquila, Italy
| | - S J Lei
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
| | - S Li
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
| | - W L Li
- National Space Science Center, Chinese Academy of Sciences, Nanertiao 1, Zhongguancun, Haidian district, Beijing 100190, China
| | - X Li
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
| | - X Q Li
- National Space Science Center, Chinese Academy of Sciences, Nanertiao 1, Zhongguancun, Haidian district, Beijing 100190, China
| | - Y M Liang
- National Space Science Center, Chinese Academy of Sciences, Nanertiao 1, Zhongguancun, Haidian district, Beijing 100190, China
| | - C M Liu
- State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei 230026, China
- Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China
| | - H Liu
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
| | - J Liu
- Institute of Modern Physics, Chinese Academy of Sciences, Nanchang Road 509, Lanzhou 730000, China
| | - S B Liu
- State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei 230026, China
- Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China
| | - W Q Liu
- Institute of Modern Physics, Chinese Academy of Sciences, Nanchang Road 509, Lanzhou 730000, China
| | - Y Liu
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
| | - F Loparco
- Istituto Nazionale di Fisica Nucleare (INFN)-Sezione di Bari, I-70125 Bari, Italy
- Dipartimento di Fisica "M. Merlin" dell'Università e del Politecnico di Bari, I-70126 Bari, Italy
| | - C N Luo
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
- School of Astronomy and Space Science, University of Science and Technology of China, Hefei 230026, China
| | - M Ma
- National Space Science Center, Chinese Academy of Sciences, Nanertiao 1, Zhongguancun, Haidian district, Beijing 100190, China
| | - P X Ma
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
| | - T Ma
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
| | - X Y Ma
- National Space Science Center, Chinese Academy of Sciences, Nanertiao 1, Zhongguancun, Haidian district, Beijing 100190, China
| | - G Marsella
- Dipartimento di Matematica e Fisica E. De Giorgi, Università del Salento, I-73100 Lecce, Italy
- Istituto Nazionale di Fisica Nucleare (INFN)-Sezione di Lecce, I-73100 Lecce, Italy
| | - M N Mazziotta
- Istituto Nazionale di Fisica Nucleare (INFN)-Sezione di Bari, I-70125 Bari, Italy
| | - D Mo
- Institute of Modern Physics, Chinese Academy of Sciences, Nanchang Road 509, Lanzhou 730000, China
| | - X Y Niu
- Institute of Modern Physics, Chinese Academy of Sciences, Nanchang Road 509, Lanzhou 730000, China
| | - X Pan
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
- School of Astronomy and Space Science, University of Science and Technology of China, Hefei 230026, China
| | - A Parenti
- Gran Sasso Science Institute (GSSI), Via Iacobucci 2, I-67100 L'Aquila, Italy
- Istituto Nazionale di Fisica Nucleare (INFN)-Laboratori Nazionali del Gran Sasso, I-67100 Assergi, L'Aquila, Italy
| | - W X Peng
- Institute of High Energy Physics, Chinese Academy of Sciences, Yuquan Road 19B, Beijing 100049, China
| | - X Y Peng
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
| | - C Perrina
- Department of Nuclear and Particle Physics, University of Geneva, CH-1211 Geneva, Switzerland
| | - R Qiao
- Institute of High Energy Physics, Chinese Academy of Sciences, Yuquan Road 19B, Beijing 100049, China
| | - J N Rao
- National Space Science Center, Chinese Academy of Sciences, Nanertiao 1, Zhongguancun, Haidian district, Beijing 100190, China
| | - A Ruina
- Department of Nuclear and Particle Physics, University of Geneva, CH-1211 Geneva, Switzerland
| | - M M Salinas
- Department of Nuclear and Particle Physics, University of Geneva, CH-1211 Geneva, Switzerland
| | - G Z Shang
- National Space Science Center, Chinese Academy of Sciences, Nanertiao 1, Zhongguancun, Haidian district, Beijing 100190, China
| | - W H Shen
- National Space Science Center, Chinese Academy of Sciences, Nanertiao 1, Zhongguancun, Haidian district, Beijing 100190, China
| | - Z Q Shen
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
| | - Z T Shen
- State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei 230026, China
- Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China
| | - L Silveri
- Gran Sasso Science Institute (GSSI), Via Iacobucci 2, I-67100 L'Aquila, Italy
- Istituto Nazionale di Fisica Nucleare (INFN)-Laboratori Nazionali del Gran Sasso, I-67100 Assergi, L'Aquila, Italy
| | - J X Song
- National Space Science Center, Chinese Academy of Sciences, Nanertiao 1, Zhongguancun, Haidian district, Beijing 100190, China
| | - M Stolpovskiy
- Department of Nuclear and Particle Physics, University of Geneva, CH-1211 Geneva, Switzerland
| | - H Su
- Institute of Modern Physics, Chinese Academy of Sciences, Nanchang Road 509, Lanzhou 730000, China
| | - M Su
- Department of Physics and Laboratory for Space Research, the University of Hong Kong, Pok Fu Lam, Hong Kong SAR 999077, China
| | - Z Y Sun
- Institute of Modern Physics, Chinese Academy of Sciences, Nanchang Road 509, Lanzhou 730000, China
| | - A Surdo
- Istituto Nazionale di Fisica Nucleare (INFN)-Sezione di Lecce, I-73100 Lecce, Italy
| | - X J Teng
- National Space Science Center, Chinese Academy of Sciences, Nanertiao 1, Zhongguancun, Haidian district, Beijing 100190, China
| | - A Tykhonov
- Department of Nuclear and Particle Physics, University of Geneva, CH-1211 Geneva, Switzerland
| | - H Wang
- National Space Science Center, Chinese Academy of Sciences, Nanertiao 1, Zhongguancun, Haidian district, Beijing 100190, China
| | - J Z Wang
- Institute of High Energy Physics, Chinese Academy of Sciences, Yuquan Road 19B, Beijing 100049, China
| | - L G Wang
- National Space Science Center, Chinese Academy of Sciences, Nanertiao 1, Zhongguancun, Haidian district, Beijing 100190, China
| | - S Wang
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
- School of Astronomy and Space Science, University of Science and Technology of China, Hefei 230026, China
| | - X L Wang
- State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei 230026, China
- Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China
| | - Y Wang
- State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei 230026, China
- Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China
| | - Y F Wang
- State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei 230026, China
- Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China
| | - Y Z Wang
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
| | - Z M Wang
- Gran Sasso Science Institute (GSSI), Via Iacobucci 2, I-67100 L'Aquila, Italy
- Istituto Nazionale di Fisica Nucleare (INFN)-Laboratori Nazionali del Gran Sasso, I-67100 Assergi, L'Aquila, Italy
| | - D M Wei
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
- School of Astronomy and Space Science, University of Science and Technology of China, Hefei 230026, China
| | - J J Wei
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
| | - Y F Wei
- State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei 230026, China
- Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China
| | - S C Wen
- State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei 230026, China
- Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China
| | - D Wu
- Institute of High Energy Physics, Chinese Academy of Sciences, Yuquan Road 19B, Beijing 100049, China
| | - J Wu
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
- School of Astronomy and Space Science, University of Science and Technology of China, Hefei 230026, China
| | - L B Wu
- State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei 230026, China
- Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China
| | - S S Wu
- National Space Science Center, Chinese Academy of Sciences, Nanertiao 1, Zhongguancun, Haidian district, Beijing 100190, China
| | - X Wu
- Department of Nuclear and Particle Physics, University of Geneva, CH-1211 Geneva, Switzerland
| | - Z Q Xia
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
| | - H T Xu
- National Space Science Center, Chinese Academy of Sciences, Nanertiao 1, Zhongguancun, Haidian district, Beijing 100190, China
| | - Z H Xu
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
- School of Astronomy and Space Science, University of Science and Technology of China, Hefei 230026, China
| | - Z L Xu
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
| | - Z Z Xu
- State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei 230026, China
- Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China
| | - G F Xue
- National Space Science Center, Chinese Academy of Sciences, Nanertiao 1, Zhongguancun, Haidian district, Beijing 100190, China
| | - H B Yang
- Institute of Modern Physics, Chinese Academy of Sciences, Nanchang Road 509, Lanzhou 730000, China
| | - P Yang
- Institute of Modern Physics, Chinese Academy of Sciences, Nanchang Road 509, Lanzhou 730000, China
| | - Y Q Yang
- Institute of Modern Physics, Chinese Academy of Sciences, Nanchang Road 509, Lanzhou 730000, China
| | - H J Yao
- Institute of Modern Physics, Chinese Academy of Sciences, Nanchang Road 509, Lanzhou 730000, China
| | - Y H Yu
- Institute of Modern Physics, Chinese Academy of Sciences, Nanchang Road 509, Lanzhou 730000, China
| | - G W Yuan
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
- School of Astronomy and Space Science, University of Science and Technology of China, Hefei 230026, China
| | - Q Yuan
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
- School of Astronomy and Space Science, University of Science and Technology of China, Hefei 230026, China
| | - C Yue
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
| | - J J Zang
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
| | - F Zhang
- Institute of High Energy Physics, Chinese Academy of Sciences, Yuquan Road 19B, Beijing 100049, China
| | - S X Zhang
- Institute of Modern Physics, Chinese Academy of Sciences, Nanchang Road 509, Lanzhou 730000, China
| | - W Z Zhang
- National Space Science Center, Chinese Academy of Sciences, Nanertiao 1, Zhongguancun, Haidian district, Beijing 100190, China
| | - Y Zhang
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
| | - Y J Zhang
- Institute of Modern Physics, Chinese Academy of Sciences, Nanchang Road 509, Lanzhou 730000, China
| | - Y L Zhang
- State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei 230026, China
- Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China
| | - Y P Zhang
- Institute of Modern Physics, Chinese Academy of Sciences, Nanchang Road 509, Lanzhou 730000, China
| | - Y Q Zhang
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
| | - Z Zhang
- Key Laboratory of Dark Matter and Space Astronomy, Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing 210023, China
| | - Z Y Zhang
- State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei 230026, China
- Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China
| | - C Zhao
- State Key Laboratory of Particle Detection and Electronics, University of Science and Technology of China, Hefei 230026, China
- Department of Modern Physics, University of Science and Technology of China, Hefei 230026, China
| | - H Y Zhao
- Institute of Modern Physics, Chinese Academy of Sciences, Nanchang Road 509, Lanzhou 730000, China
| | - X F Zhao
- National Space Science Center, Chinese Academy of Sciences, Nanertiao 1, Zhongguancun, Haidian district, Beijing 100190, China
| | - C Y Zhou
- National Space Science Center, Chinese Academy of Sciences, Nanertiao 1, Zhongguancun, Haidian district, Beijing 100190, China
| | - Y Zhu
- National Space Science Center, Chinese Academy of Sciences, Nanertiao 1, Zhongguancun, Haidian district, Beijing 100190, China
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8
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Zhang SX, Shi GC. [Clinical characteristics of 288 cases of pathologically confirmed benign pulmonary nodules post-surgery]. Zhonghua Jie He He Hu Xi Za Zhi 2021; 44:456-461. [PMID: 34865366 DOI: 10.3760/cma.j.cn112147-20200516-00602] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Objective: To analyze retrospectively the clinical characteristics of pathologically confirmed benign pulmonary nodules post-surgery, and therefore to provide evidence for the diagnosis of benign pulmonary nodules. Methods: 288 cases of pulmonary nodules were selected in the Ruijin Hospital from 1st January 2017 to 31st October 2019. All the lesions of these patients were confirmed by surgery and had definite pathological diagnosis. The clinical data were collected, including demography, clinical data, radiological features. Features that indicated benign pulmonary nodules were summarized. Results: The main etiologies of benign pulmonary nodules were granulomas, hamartomas, cryptococcus infection, organizing pneumonia and non-specific inflammation. In our cohort, we found that the radiological characteristics of benign nodules were single, solid, less than 10 mm in average diameter, with well-defined margins, absence of vacuole sign or vascular convergence , and negative functional imaging. Conclusion: The most common etiologies of post-surgical benign nodules were granulomas, hamartomas, and cryptococcus infection, characterized by being single, solid and with well-defined margins. Caution should be taken before considering surgery for such nodules.
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Affiliation(s)
- S X Zhang
- Department of Respiratory and Critical Care Medicine, Ruijin Hospital,Shanghai Jiaotong University School of Medicine;Institute of Respiratory Diseases, Shanghai Jiaotong University School of Medicine,Shanghai 200025,China
| | - G C Shi
- Department of Respiratory and Critical Care Medicine, Ruijin Hospital,Shanghai Jiaotong University School of Medicine;Institute of Respiratory Diseases, Shanghai Jiaotong University School of Medicine,Shanghai 200025,China
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9
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Chen X, Rui WW, Bi K, Wu YJ, Zhang SX, Zhang L, Yu J, Xiu B, Yi XH, Zeng Y. [A study of LEF1 protein expression in diagnosis and differential diagnosis of lymphoblastic lymphoma/acute lymphoblastic leukemia]. Zhonghua Bing Li Xue Za Zhi 2021; 50:207-212. [PMID: 33677883 DOI: 10.3760/cma.j.cn112151-20200513-00379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To evaluate the expression of LEF1 protein in lymphoblastic lymphoma/acute lymphoblastic leukemia (LBL/ALL) and small B-cell lymphomas, and its value in pathologic diagnosis and differential diagnosis of LBL/ALL. Methods: 53 cases of LBL/ALL were collected at shanghai Tongji Hospital from January 2012 to December 2019. The protein expression of LEF1 and TdT was detected by immunohistochemistry in 53 paraffin-embedded tissue samples of LBL/ALL. The specificity and sensitivity of LEF1 and TdT in the diagnosis of LBL/ALL were compared. The expression of LEF1 protein in 77 cases of small B-cell lymphomas including chronic lymphocytic leukemia/small lymphoid lymphoma (CLL/SLL), follicular lymphoma, mantle cell lymphoma, marginal zone lymphoma and Waldenstrom's macroglobulinemia/lymphoplasmacytic lymphoma was studied. The correlation between LEF1 expression and overall survival (OS) and progression-free survival (PFS) was performed by univariate analysis. Results: The expression of LEF1 in LBL/ALL was 100% (53/53), the median value was 90%; the expression of TdT was 84.9% (T-LBL/ALL 78.1%, B-LBL/ALL 95.2%), the median value was 80%; the expression rate and median value of LEF1 and TdT were significantly different (P=0.008 and 0.001 respectively). The expression of LEF1 in CLL/SLL was 14/18, the median value was 45%; LEF1 was not expressed in follicular lymphoma (0/16), mantle cell lymphoma (0/16), marginal zone lymphoma (0/19), and Waldenstrom's macroglobulinemia/lymphoplasmacytic lymphoma (0/8). LEF1 expression was significantly different between B-LBL/ALL and small B-cell lymphomas. The median follow-up time of LBL/ALL cases in this group was 16 months. There was no statistical difference between LEF1 expression and the OS and PFS in LBL/ALL patients. Conclusions: Immunohistochemical staining of LEF1 has high sensitivity and good specificity in the diagnosis of LBL/ALL, and its combination with TdT can improve the diagnostic rate of LBL/ALL.
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Affiliation(s)
- X Chen
- Department of Pathology, Tongji Hospital, Tongji University School of Medicine, Shanghai 200065, China
| | - W W Rui
- Department of Pathology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200010, China
| | - K Bi
- Department of Pathology, Tongji Hospital, Tongji University School of Medicine, Shanghai 200065, China
| | - Y J Wu
- Department of Pathology, Tongji Hospital, Tongji University School of Medicine, Shanghai 200065, China
| | - S X Zhang
- Department of Pathology, Tongji Hospital, Tongji University School of Medicine, Shanghai 200065, China
| | - L Zhang
- Department of Pathology, Tongji Hospital, Tongji University School of Medicine, Shanghai 200065, China
| | - J Yu
- Department of Pathology, Tongji Hospital, Tongji University School of Medicine, Shanghai 200065, China
| | - B Xiu
- Department of Hematology, Tongji Hospital, Tongji University School of Medicine, Shanghai 200065, China
| | - X H Yi
- Department of Pathology, Tongji Hospital, Tongji University School of Medicine, Shanghai 200065, China
| | - Y Zeng
- Department of Pathology, Tongji Hospital, Tongji University School of Medicine, Shanghai 200065, China
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10
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Lü SJ, Tong PJ, Huang JF, Liu X, Zhang SX, Wang J, Chen JJ. [Clinical effect of one-stage total knee arthroplasty for knee osteoarthritis with femoral extra-articular deformity]. Zhonghua Yi Xue Za Zhi 2020; 100:2429-2434. [PMID: 32819058 DOI: 10.3760/cma.j.cn112137-20200110-00073] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
Objective: To investigate the application and efficacy of the one-stage total knee arthroplasty (TKA) of intra-articular compensation osteotomy in knee osteoarthritis(KOA) patients with extra-articular deformity (EAD). Methods: A retrospective study of 9 patients with end-stage KOA and EAD undergoing one-stage TKA from January 2014 to December 2017 in the First Affiliated Hospital of Zhejiang Chinese Medical University was performed. There were 3 males and 6 females with an average age of 56 years(range, 19-77 years);5 cases of simple coronal deformity (varus 10°-27°, mean 18.2°), 3 cases of sagittal deformity (recurvatum15°-35°, mean 22.6°), 1 case combined with coronal and sagittal deformity (varus 16°, recurvatum 31°); hemophilia dysplasia in 1 case, fracture malformation in 8 cases. Main outcome measures included the mechanical axis, range of motion (ROM) and Hospital for Special Surgery Knee Score (HSS). Results: The mean follow-up period was 33.2 months (range, 25-47 months). The mechanical axis angle was restored from 12.4°±4.1°to 1.4°±0.9°(t=7.954, P<0.01). The HSS was improved from 28±14 preoperatively to 87±7 postoperatively (t=-11.174, P=0.013). The ROM increased from 56°±22°to 99°±8° (t=-5.480, P=0.010). There was no complications such as joint instability, infection, fracture, common peroneal nerve injury and early prosthesis loosening. Conclusions: For KOA patients with femoral EAD, one-stage TKA with intra-articular compensatory osteotomy can effectively restore the mechanical axis and obtain satisfying joint function. Through a series of measures such as preoperative measurement, soft tissue evaluation and 3D printing, the accuracy of surgery can be improved and the difficulty of surgery can be reduced.
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Affiliation(s)
- S J Lü
- Department of Orthopedics, the First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou 310006, China
| | - P J Tong
- Department of Orthopedics, the First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou 310006, China
| | - J F Huang
- Department of Orthopedics, the First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou 310006, China
| | - X Liu
- Department of Orthopedics, the First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou 310006, China
| | - S X Zhang
- Department of Orthopedics, the First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou 310006, China
| | - J Wang
- Department of Orthopedics, the First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou 310006, China
| | - J J Chen
- Department of Orthopedics, the First Affiliated Hospital of Zhejiang Chinese Medical University, Hangzhou 310006, China
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Zhang SX, Li J, Zhou P, Na JR, Liu BF, Zheng XW, Cao XY, Tong AR, Gao XF, Wang XQ, Xie F, Xu L, Ma GR, Zhou W. [The analysis of clinical characteristics of 34 novel coronavirus pneumonia cases in Ningxia Hui autonomous region]. Zhonghua Jie He He Hu Xi Za Zhi 2020; 43:431-436. [PMID: 32450631 DOI: 10.3760/cma.j.cn112147-20200219-00121] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [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 analyze the clinical characteristics of 34 COVID-19 cases and to provide the basis for the prevention and control of the epidemic disease. Methods: Thirty-four COVID-19 patients diagnosed with RT-PCR in the isolation ward of the Fourth People's Hospital of Ningxia Hui autonomous region (infectious diseases hospital) from the January 22 to February 4, 2020 were selected as the research subjects. The clinical data were collected. Excel was used to describe the relationship between clinical classification and age distribution, contact history and date of onset. SPSS 25.0 statistical software was used for analysis. The general information, clinical symptoms, blood test, virus nucleic acid test results, epidemiology, CT imaging, treatment and prognosis were analyzed. Results: There were 5 mild cases (5/34), 24 ordinary cases (24/34), 5 severe cases (5/34). The elderly was more common in severe patients. The main clinical symptoms were fever (27/34)and dry cough(26/34). The peripheral blood showed normal or decreased leukocyte count (33/34), decreased lymphocyte count (12/34). The increase of C-reactive protein (CRP) and D-dimer was related to the severity of the disease. Some patients had mild liver and kidney damage. Six patients were diagnosed through 3 or more times of nucleic acid tests. Sixteen cases had Wuhan related history,13 cases were close contacts, 5 cases had no confirmed route. The clustered infections were found in 6 families. In typical cases, CT showed single or multiple patchy ground glass shadow with thickening of interlobular septum. In severe cases, diffuse lesions of both lungs were found, with ground glass shadow, consolidation shadow and strip shadow coexisting. Thirty-four patients were treated with interferon-α and Lopinavir/Ritonavir with good prognosis. Conclusions: The clinical characteristics of COVID-19 were similar to that of general viral pneumonia but with strong infectivity. Close contact and family aggregation caused disease outbreaks. COVID-19 could not be excluded if two nucleic acid tests were negative and high-resolution CT was helpful for differential diagnosis. Early detection, early isolation, early diagnosis and early treatment are important for good prognosis. The effectiveness of antiviral drugs needs to be further verified.
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Affiliation(s)
- S X Zhang
- Department of Respiratory and Critical Care Medicine, The General Hospital of Ningxia Medical University, Yinchuan, 750004, China
| | - J Li
- Department of Internal Medicine, The Fourth People's Hospital of Ningxia Hui Autonomous Region, Yinchuan, 750021, China
| | - P Zhou
- Department of Radiology, The Fourth People's Hospital of Ningxia Hui Autonomous Region, Yinchuan, 750021, China
| | - J R Na
- Department of Respiratory and Critical Care Medicine, The General Hospital of Ningxia Medical University, Yinchuan, 750004, China
| | - B F Liu
- Intensive Care Unit, The Fourth People's Hospital of Ningxia Hui Autonomous Region, Yinchuan, 750021, China
| | - X W Zheng
- Department of Respiratory and Critical Care Medicine, The General Hospital of Ningxia Medical University, Yinchuan, 750004, China
| | - X Y Cao
- Intensive Care Unit, General Hospital of Ningxia Medical University, Yinchuan, 750004, China
| | - A R Tong
- Department of traditional Chinese medicine, Ningxia Institute of traditional Chinese medicine, Yinchuan, 750021, China
| | - X F Gao
- Intensive Care Unit, The First People's Hospital of Ningxia Hui Autonomous Region, Yinchuan, 750004, China
| | - X Q Wang
- Intensive Care Unit, General Hospital of Ningxia Medical University, Yinchuan, 750004, China
| | - F Xie
- Intensive Care Unit, General Hospital of Ningxia Medical University, Yinchuan, 750004, China
| | - L Xu
- Intensive Care Unit, The Fourth People's Hospital of Ningxia Hui Autonomous Region, Yinchuan, 750021, China
| | - G R Ma
- Department of Respiratory, The Fourth People's Hospital of Ningxia Hui Autonomous Region, Yinchuan, 750021, China
| | - W Zhou
- Department of Respiratory and Critical Care Medicine, The General Hospital of Ningxia Medical University, Yinchuan, 750004, China
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12
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Wang XT, Chen CW, Zheng XM, Wang B, Zhang SX, Yao MH, Chen H, Huang HF. Expression and prognostic significance of melatonin receptor MT1 in patients with gastric adenocarcinoma. Neoplasma 2019; 67:415-420. [PMID: 31829023 DOI: 10.4149/neo_2019_190220n141] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2019] [Accepted: 08/11/2019] [Indexed: 11/08/2022]
Abstract
Melatonin receptor type 1 (MTNR1A or MT1) is known to play an important role in cancer progression; however, its prognostic value for resected gastric adenocarcinoma (RGA) is unknown. In this study, we examined the potential of MT1 as a prognostic biomarker for RGA. The expression of the MT1 was evaluated in 67 patients with RGA by immunohistochemistry, and the relationship between MT1 levels and RGA prognosis was analyzed by Chi-square test, multivariate Cox regression, Kaplan-Meier method, and log-rank test. High MT1 expression was associated with a poor survival rate (29.0%, p=0.002) and the occurrence of metastasis (62.9%, p=0.004). Kaplan-Meier survival analysis and log rank tests revealed that patients with high expression of the MT1 had significantly shorter median overall survival compared to those with low expression (33.0 vs. 65.0 months, respectively; p=0.02). Multivariate Cox analysis indicated that the calculated death risk (hazard ratio [HR]) in patients with high expression levels of the MT1 increased to 2.68 (95% confidence interval [CI] 1.21-5.94, p=0.015), which was higher compared to those with low levels. HR of death was also high in patients with advanced T stage (2.51; 95 % CI 1.00-6.26, p=0.049) and metastasis (5.02; 95% CI 1.94-13.03, p=0.001). Our results showed that high MT1 expression in primary gastric adenocarcinoma tissues was associated with the occurrence of metastasis and poor prognosis. It may have prognostic significance as a potential biomarker in patients with RGA.
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Affiliation(s)
- X T Wang
- Central Laboratory, Fujian Medical University Union Hospital, Fujian Medical University, Fuzhou, China
| | - C W Chen
- Central Laboratory, Fujian Medical University Union Hospital, Fujian Medical University, Fuzhou, China.,Department of Clinical Laboratory, The Hospital of Nanan City, Nanan, China
| | - X M Zheng
- Central Laboratory, Fujian Medical University Union Hospital, Fujian Medical University, Fuzhou, China
| | - B Wang
- Central Laboratory, Fujian Medical University Union Hospital, Fujian Medical University, Fuzhou, China
| | - S X Zhang
- Fujian Institute of Hematology, Fujian Provincial Key Laboratory on Hematology, Fujian Medical University Union Hospital, Fuzhou, China
| | - M H Yao
- Department of Pathology, Fujian Medical University Union Hospital, Fujian Medical University, Fuzhou, China
| | - H Chen
- Department of Pathology, Fujian Medical University Union Hospital, Fujian Medical University, Fuzhou, China
| | - H F Huang
- Central Laboratory, Fujian Medical University Union Hospital, Fujian Medical University, Fuzhou, China
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Kang JM, Li YT, Chen R, Yu YF, Li XT, Wu XP, Chu YH, Chen JX, Zhang SX, Tian LG. [Prevalence and risk factors of Blastocystis hominis infection in inpatients in Jiangjin District, Chongqing City]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2019; 31:479-485. [PMID: 31713375 DOI: 10.16250/j.32.1374.2018244] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
OBJECTIVE To understand the prevalence and risk factors of Blastocystis hominis infection in inpatients in Jiangjin District, Chongqing City. METHODS A cross-sectional study was conducted in a community hospital in Jiangjin District, Chongqing City, and the inpatients were surveyed by questionnaires. After obtaining the informed consent from the inpatients or legal guardians, the stool and blood samples were collected and examined by microscopy and PCR from April 17 to May 1, 2018. The univariate analysis and logistic regression analysis were used to analyze the risk factors of the B. hominis infection. RESULTS A total of 198 hospitalized patients were investigated, and the infection rate of B. hominis was 10.61% (21/198), and the infection rate of the females (12.10%) was higher than that of the males (8.11%), but the difference was not statistically significant. The highest rate of infection was 19.23% in the age group of 10 to 20 years, followed by 17.74% in the age group of 60 years and above, and the lowest rate was 2.38% in the age group of 20 to 40 years. The difference in infection rates of B. hominis among the different age groups was statistically significant (P < 0.05). The infection rate of B. hominis in the people who used dry pail latrines was 33.30%, which was higher than that of the people who used water flush toilets (9.10%) (P < 0.05). The genotypes of B. hominis were ST1, ST3, ST6 and ST7, and ST6 and ST3 being the most predominant genotypes which accounted for 47.62% (10/21) and 38.10% (8/21) respectively, and among the infected males, the genotypes were only ST3 and ST6. The multiple logistic regression analysis showed that among the factors affecting B. hominis infection, only keeping pets was a risk factor [OR = 3.798, 95% CI (1.245, 11.581), P < 0.05]. CONCLUSIONS A high prevalence of B. hominis infection is found in the inpatients in Jiangjin District, Chongqing City, the predominant genotypes are ST6 and ST3, and keeping pets may be one of the main risk factors.
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Affiliation(s)
- J M Kang
- Jiangjin District Center for Disease Control and Prevention, Chongqing 402260, China
| | - Y T Li
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, Key Laboratory for Parasites and Vector Biology, National Health Commission, WHO Collaborating Center for Tropical Diseases, National Center for International Research on Tropical Diseases, China
| | - R Chen
- Jiangjin District Center for Disease Control and Prevention, Chongqing 402260, China
| | - Y F Yu
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, Key Laboratory for Parasites and Vector Biology, National Health Commission, WHO Collaborating Center for Tropical Diseases, National Center for International Research on Tropical Diseases, China
| | - X T Li
- Jiangjin District Center for Disease Control and Prevention, Chongqing 402260, China
| | - X P Wu
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, Key Laboratory for Parasites and Vector Biology, National Health Commission, WHO Collaborating Center for Tropical Diseases, National Center for International Research on Tropical Diseases, China
| | - Y H Chu
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, Key Laboratory for Parasites and Vector Biology, National Health Commission, WHO Collaborating Center for Tropical Diseases, National Center for International Research on Tropical Diseases, China
| | - J X Chen
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, Key Laboratory for Parasites and Vector Biology, National Health Commission, WHO Collaborating Center for Tropical Diseases, National Center for International Research on Tropical Diseases, China
| | - S X Zhang
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, Key Laboratory for Parasites and Vector Biology, National Health Commission, WHO Collaborating Center for Tropical Diseases, National Center for International Research on Tropical Diseases, China
| | - L G Tian
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, Key Laboratory for Parasites and Vector Biology, National Health Commission, WHO Collaborating Center for Tropical Diseases, National Center for International Research on Tropical Diseases, China
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Zhang SX, Yu YF, Wu XP, Chu YH, Teng XJ, Wang FF, Chen JX, Tian LG. [Epidemiological characteristics and risk factors of Blastocystis hominis infection among patients with HIV/AIDS in Fuyang City Anhui Province]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2019; 31:498-503. [PMID: 31713378 DOI: 10.16250/j.32.1374.2019087] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
OBJECTIVE To investigate the prevalence and risk factors of Blastocystis hominis infections among patients with HIV/AIDS in Fuyang City, Anhui Province. METHODS A cross-sectional study was conducted in Fuyang City, Anhui Province in 2016. The demographic and socioeconomic status, and the lifestyle and production style were collected using a questionnaire survey. B. hominis DNA was detected in subjects'stool samples using a PCR assay, and the CD4+ T lymphocyte count and HIV viral load were measured in the subjects' blood samples. The risk factors of B. hominis infections among patients with HIV/AIDS were identified using univariate and multivariate logistic regression analyses. RESULTS A total of 398 HIV/AIDS patients were enrolled in this study, with a mean age of 49.3 years, a mean body weight of 55.9 kg and a mean height of 164.4 cm. The prevalence of B. hominis infection was 6.78% in the study subjects, and no gender- (χ2 = 1.589, P = 0.207), education level- (χ2 =0.508, P = 0.776), marital status- (χ2 = 0.419, P = 0.811) or occupation-specific prevalence (χ2 = 2.744, P = 0.615) was detected. Among the patients with HIV/AIDS, there were no significant differences in the age (t = 0.370, P = 0.712), height (t = 1.587, P =0.113), body weight (t = 0.516, P = 0.606), CD4+ T lymphocyte count (t = 1.187, P = 0.230) or HIV viral load (t = 0.193, P =0.496) between B. hominis-infected and uninfected individuals. Dinking non-tap water [OR = 6.554, 95% CI: (1.876 to 22.903)] and keeping dogs [OR = 5.895, 95% CI: (2.017 to 17.225)] were identified as risk factors for B. hominis infection in patients with HIV/AIDS. CONCLUSIONS The prevalence of B. hominis infection is high in HIV/AIDS patients, and drinking non-tap water and keeping dogs are risk factors for B. hominis infection among HIV/AIDS patients.
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Affiliation(s)
- S X Zhang
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, National Research Center for Tropical Diseases, Key Laboratory of Parasite and Vector Biology, National Health Commission, WHO Collaborating Center for Tropical Diseases, Shanghai 200025, China
| | - Y F Yu
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, National Research Center for Tropical Diseases, Key Laboratory of Parasite and Vector Biology, National Health Commission, WHO Collaborating Center for Tropical Diseases, Shanghai 200025, China
| | - X P Wu
- Anhui Institute of Parasitic Diseases, China
| | - Y H Chu
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, National Research Center for Tropical Diseases, Key Laboratory of Parasite and Vector Biology, National Health Commission, WHO Collaborating Center for Tropical Diseases, Shanghai 200025, China
| | - X J Teng
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, National Research Center for Tropical Diseases, Key Laboratory of Parasite and Vector Biology, National Health Commission, WHO Collaborating Center for Tropical Diseases, Shanghai 200025, China
| | - F F Wang
- Anhui Institute of Parasitic Diseases, China
| | - J X Chen
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, National Research Center for Tropical Diseases, Key Laboratory of Parasite and Vector Biology, National Health Commission, WHO Collaborating Center for Tropical Diseases, Shanghai 200025, China
| | - L G Tian
- National Institute of Parasitic Diseases, Chinese Center for Disease Control and Prevention, National Research Center for Tropical Diseases, Key Laboratory of Parasite and Vector Biology, National Health Commission, WHO Collaborating Center for Tropical Diseases, Shanghai 200025, China
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Yang PC, Zhang SX, Sun PP, Cai YL, Lin Y, Zou YH. [Development of Markov models for economics evaluation of strategies on hepatitis B vaccination and population-based antiviral treatment in China]. Zhonghua Liu Xing Bing Xue Za Zhi 2019; 38:845-851. [PMID: 28738454 DOI: 10.3760/cma.j.issn.0254-6450.2017.07.002] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To construct the Markov models to reflect the reality of prevention and treatment interventions against hepatitis B virus (HBV) infection, simulate the natural history of HBV infection in different age groups and provide evidence for the economics evaluations of hepatitis B vaccination and population-based antiviral treatment in China. Methods: According to the theory and techniques of Markov chain, the Markov models of Chinese HBV epidemic were developed based on the national data and related literature both at home and abroad, including the settings of Markov model states, allowable transitions and initial and transition probabilities. The model construction, operation and verification were conducted by using software TreeAge Pro 2015. Results: Several types of Markov models were constructed to describe the disease progression of HBV infection in neonatal period, perinatal period or adulthood, the progression of chronic hepatitis B after antiviral therapy, hepatitis B prevention and control in adults, chronic hepatitis B antiviral treatment and the natural progression of chronic hepatitis B in general population. The model for the newborn was fundamental which included ten states, i.e. susceptiblity to HBV, HBsAg clearance, immune tolerance, immune clearance, low replication, HBeAg negative CHB, compensated cirrhosis, decompensated cirrhosis, hepatocellular carcinoma (HCC) and death. The susceptible state to HBV was excluded in the perinatal period model, and the immune tolerance state was excluded in the adulthood model. The model for general population only included two states, survive and death. Among the 5 types of models, there were 9 initial states assigned with initial probabilities, and 27 states for transition probabilities. The results of model verifications showed that the probability curves were basically consistent with the situation of HBV epidemic in China. Conclusion: The Markov models developed can be used in economics evaluation of hepatitis B vaccination and treatment for the elimination of HBV infection in China though the structures and parameters in the model have uncertainty with dynamic natures.
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Affiliation(s)
- P C Yang
- Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China; Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - S X Zhang
- Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China
| | - P P Sun
- Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China; Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Y L Cai
- Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China
| | - Y Lin
- Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China; Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Y H Zou
- Guangdong Pharmaceutical University, Guangzhou 510006, China
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Zhang SX, Yang PC, Cai YL, Lin Y, Zou YH. [Cost-effectiveness of community-based treatment of chronic hepatitis B in China]. Zhonghua Liu Xing Bing Xue Za Zhi 2019; 38:860-867. [PMID: 28738456 DOI: 10.3760/cma.j.issn.0254-6450.2017.07.004] [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: Since eliminating hepatitis B in China would need considerable public health resources, the economics problem of the strategy of community-based antiviral treatment for chronic hepatitis B (CHB) has become an important issue. The cost-effectiveness and affordability of the strategy were evaluated in this study. Methods: According to the advocacy on eliminating hepatitis B by WHO and the comprehensive protocol of community based prevention of major infectious diseases and the guideline for CHB prevention and treatment in China, the decision analytic Markov model was constructed with the parameters from national surveys or Meta-analysis. A cohort population aged 20-59 years was used as study subjects. The strategy of CHB antiviral treatment was compared with the strategies of hepatitis B vaccination and non-intervention, respectively. The costs and disability-adjusted life years (QALYs) of the strategies were calculated from the societal and payer perspectives. The incremental cost-effectiveness ratio (ICER) and the cost-effectiveness ratio (CER) were calculated for the comparison of the strategies. One-way and probability sensitivity analysis were performed for uncertainty of the results. And the cost-effectiveness and affordability curves were introduced to estimate the budget impact on the strategies. Results: In the Chinese aged 20-59 years, the ICER of CHB antiviral treatment was 37 598.6 yuan (RMB) per QALYs and the ICERs were smaller in the low age groups, indicating that the antiviral treatment strategy is cost-effective and low age groups should be the priority population. The ICER of hepatitis B vaccination was -64 000.0 yuan (RMB) per QALYs, indicating that hepatitis B vaccination is cost saving. The CER of CHB antiviral treatment ranged from 731.8 to 1 813.3 yuan (RMB) per QALYs compared with hepatitis B vaccination, and the CER of CHB antiviral treatment was higher than that of hepatitis B vaccination in all age groups, indicating that hepatitis B vaccination would be more cost-effective than CHB antiviral treatment. The price of antiviral drug, entercavir, can influence the cost effectiveness of CHB antiviral treatment. If the price of entercavir declined half, CHB antiviral treatment would be cost-saving. The probability sensitivity analysis showed that people's willing to pay for CHB antiviral treatment should not be ignored, although the results of economics evaluation of CHB antiviral treatment were reliable. The results of affordability analysis indicated that the antiviral treatment strategy could not be implemented with the budget lower than 30 million yuan (RMB), the probability of implementing the strategy was 42.6% if the budget reaches 127 million yuan (RMB), and only when the budget reaches 269 million yuan (RMB), the goal of CHB antiviral treatment strategy can be fully realized. Conclusions: Although the strategy of CHB antiviral treatment as prevention in Chinese aged 20-59 years is cost-effective, it is not an appropriate public health measure due to the high cost. The cost effectiveness would be higher by conducting hepatitis B vaccination and then antiviral treatment in susceptible population.
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Affiliation(s)
- S X Zhang
- Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China
| | - P C Yang
- Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China; Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Y L Cai
- Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China
| | - Y Lin
- Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China; Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Y H Zou
- Guangdong Pharmaceutical University, Guangzhou 510006, China
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17
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Abstract
WHO has developed and issued global hepatitis B elimination program. Continuing hepatitis B immunization and conducting community based antiviral treatment for chronic hepatitis B are the most important strategies for hepatitis B elimination. According to the estimation of related cost by WHO, the cost of antiviral therapy would be very high. Great achievement has been made in hepatitis B immunization in China, but the prevalence of chronic hepatitis B is high. Elimination of hepatitis B needs a large amount of public resource, posing serious challenge to public health policy making. Economics research on hepatitis B prevention and treatment can provide evidence and technical support for hepatitis B elimination. In this column "Economic evaluations of hepatitis B" , the related articles in this issue summarize the progress in this research field, which is inspiring and encouraging.
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Affiliation(s)
- S X Zhang
- Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China
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18
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Li JH, Lin YB, Yu GS, Zhang SX, Liu YY, Xu HB. [Advances in internal fixation for the treatment of extra-articular distal tibial fracture]. Zhonghua Wai Ke Za Zhi 2019; 57:236-240. [PMID: 30861654 DOI: 10.3760/cma.j.issn.0529-5815.2019.03.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Extra-articular distal tibial fractures as a result of high-energy damage are often comminuted or displaced, frequently accompanied by severe soft tissue injuries.Poor blood supply and various complications make the treatment more difficult,affecting life quality of the patients.The main goals of the treatment are to abtain a healed,well-aligned fracture,functional range of motion of the ankle joint and minimizing complications.It is generally recommended that surgical treatment be performed in the proper context of local conditions to facilitate early functional exercise.Plate fixation and intramedullary nail fixation are the common options for closed fractures.This article focuses on the two treatment methods and some important auxiliary technologies in both domestic and foreign, hoping to provide some references for clinical treatment.
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Affiliation(s)
- J H Li
- Department of Trauma Orthopedics, Fuzhou Second Hospital Affiliated to Xiamen University, Fujian Province, Fuzhou 350007, China
| | - Y B Lin
- Department of Trauma Orthopedics, Fuzhou Second Hospital Affiliated to Xiamen University, Fujian Province, Fuzhou 350007, China
| | - G S Yu
- Department of Trauma Orthopedics, Fuzhou Second Hospital Affiliated to Xiamen University, Fujian Province, Fuzhou 350007, China
| | - S X Zhang
- Fujian University of Traditional Chinese Medicine, Fuzhou 350122, China
| | - Y Y Liu
- Fujian University of Traditional Chinese Medicine, Fuzhou 350122, China
| | - H B Xu
- Fujian University of Traditional Chinese Medicine, Fuzhou 350122, China
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Lin Y, Zhang SX, Yang PC, Cai YL, Zou YH. [Cost-effectiveness and affordability of strategy for preventing mother-to-child transmission of hepatitis B in China]. Zhonghua Liu Xing Bing Xue Za Zhi 2019; 38:852-859. [PMID: 28738455 DOI: 10.3760/cma.j.issn.0254-6450.2017.07.003] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To evaluate the cost effectiveness of nationwide prevention of mother to child transmission (PMTCT) strategy for hepatitis B, and estimate the willing to pay and budget impacts on the PMTCT. Methods: The decision analytic Markov model for the PMTCT was constructed and a birth cohort of Chinese infants born in 2013 was used to calculate the cost-effectiveness of the PMTCT among them compared with those receiving no intervention. The parameters in the model were obtained from literatures of national surveys or Meta-analysis. The costs, cases of HBV-related diseases and quality-adjusted life-years (QALYs) were obtained from the societal and payer perspectives, respectively. The incremental cost-effectiveness ratio (ICER) was used as measures of strategy optimization. One-way and probability sensitivity analysis were performed to explore the uncertainty of the primary results. In addition, cost-effectiveness acceptability curve and cost-effectiveness affordability curves were drawn to illustrate the cost effectiveness threshold and financial budget of the PMTCT strategy. Results: The lifetime cost for PMTCT strategy was 4 063.5 yuan (RMB) per carrier, which was 37 829.7 yuan (RMB) lower compared with those receiving no intervention. Due to the strategy, a total of 24.516 1 QALYs per person would be gained, which was higher than that in those receiving no intervention. From societal perspective, the ICER was -59 136.6 yuan (RMB) per additional QALYs gained, indicating that the PMTCT is cost effective. The results were reliable indicated by one-way, multi-way and probability sensitivity analyses. By the CEAC, the willing to pay was much lower than the cost-effectiveness threshold. From the affordability curve of the PMTCT strategy, the annual budget ranged from 590.4 million yuan (RMB) to 688.8 million yuan (RMB), which was lower than the financial ability. Based on the results of cost-effectiveness affordability curves, the higher annual budget was determined, the higher probability of affordability for the PMTCT would be obtained under the same willing to pay state. Only when the annual budget reaches 688.8 million yuan (RMB), the goal of PMTCT would be fully realized. Conclusions: The PMTCT strategy in China was cost effective, and the cost is not beyond the financial budget needed and the willing to pay. The strategy, which is consistent with the global hepatitis B elimination efforts, should be conducted widely in China.
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Affiliation(s)
- Y Lin
- Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China; Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - S X Zhang
- Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China
| | - P C Yang
- Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China; Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Y L Cai
- Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China
| | - Y H Zou
- Guangdong Pharmaceutical University, Guangzhou 510006, China
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Huang SL, Chen LS, Zhang B, Liang L, Gong XX, Zhou ZG, Zhang SX, Luo XN, Lu ZM, Zhang SY. [Value of modified Killian's method in diagnosis of congenital pyriform sinus fistula]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2019; 52:744-748. [PMID: 29050091 DOI: 10.3760/cma.j.issn.1673-0860.2017.10.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the feasibility and significance of modified Killian(MK) method in the clinical diagnosis of congenital pyriform sinus fistula(CPSF) by electronic laryngoscopy. Methods: The following examinations were performed for 30 suspected cases of CPSF, including the traditional electronic laryngoscopy, MK examination(modified Killian position+ head rotation+ the Valsalva maneuver), barium swallow X-ray(BSX) and CT , and a prospective comparison among them were done. Patients were divided into two groups according to their age: young age group(≤14 years old) and older age group (>14 years old). The results of MK examination from the patients were analyzed and the positive diagnostic rates (PDR) between groups were compared by using χ(2) tests. Results: Sinuses in 20 of 30 patients were depicted from pyriform sinus in BSX, and the PDR was 66.7%(20/30). The PRD of CT was 83.3%(25/30). The presence of air bubbles around the upper lobe of the thyroid gland or at the inferomedial edge of cricothyroid joints, morphological changes of thyroid grand as well as pseudo-fistula formation on lower neck were detected clearly on CT. Comparing to the traditional electronic laryngoscopy, the effect of exposing piriform fossa fistula by MK examination is significant(χ(2)=17.05, P<0.05), with the PDR of 13.3%(4/30) and 76.7%(23/30) respectively. Nevertheless, comparing to BSX and CT, there were no statistically significant differences in the effect to diagnose CPSF (χ(2)=0.31, χ(2)=0.10 respectively, P>0.05). The PDR of MK in older group is significantly higher than younger group(χ(2)=6.68, P<0.05). Conclusions: MK examination can clearly reveal the hypopharyngeal anatomical structure and detect the sinus of CPSF .It could be a safe, feasible, convenient and economical method as an application in preoperative diagnosis and follow-up examination of clinical suspected CPSF.
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Affiliation(s)
- S L Huang
- Department of Otorhinolaryngology Head and Neck Surgery, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - L S Chen
- Department of Otorhinolaryngology Head and Neck Surgery, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - B Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - L Liang
- Department of Otorhinolaryngology, Nansha Hospital of Guangzhou First People's Hospital, Guangzhou 510515, China
| | - X X Gong
- Department of Otorhinolaryngology Head and Neck Surgery, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Z G Zhou
- Department of Radiology, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - S X Zhang
- Department of Radiology, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - X N Luo
- Department of Otorhinolaryngology Head and Neck Surgery, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - Z M Lu
- Department of Otorhinolaryngology Head and Neck Surgery, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
| | - S Y Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, Guangdong General Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
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Zhang SX, Shoptaw S, Reback CJ, Yadav K, Nyamathi AM. Cost-effective way to reduce stimulant-abuse among gay/bisexual men and transgender women: a randomized clinical trial with a cost comparison. Public Health 2017; 154:151-160. [PMID: 29245022 DOI: 10.1016/j.puhe.2017.10.024] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [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: 07/27/2017] [Revised: 10/13/2017] [Accepted: 10/25/2017] [Indexed: 11/19/2022]
Abstract
OBJECTIVES A randomized controlled study was conducted with 422 homeless, stimulant-using gay/bisexual (G/B) men and 29 transgender women (n = 451) to assess two community-based interventions to reduce substance abuse and improve health: (a) a nurse case-managed program combined with contingency management (NCM + CM) versus (b) standard education plus contingency management (SE + CM). STUDY DESIGN Hypotheses tested included: a) completion of hepatitis A/B vaccination series; b) reduction in stimulant use; and c) reduction in number of sexual partners. METHODS A deconstructive cost analysis approach was utilized to capture direct costs associated with the delivery of both interventions. Based on an analysis of activity logs and staff interviews, specific activities and the time required to complete each were analyzed as follows: a) NCM + CM only; b) SE + CM only; c) time to administer/record vaccines; and d) time to receive and record CM visits. Cost comparison of the interventions included only staffing costs and direct cash expenditures. RESULTS The study outcomes showed significant over time reductions in all measures of drug use and multiple sex partners, compared to baseline, although no significant between-group differences were detected. Cost analysis favored the simpler SE + CM intervention over the more labor-intensive NCM + CM approach. Because of the high levels of staffing required for the NCM relative to SE, costs associated with it were significantly higher. CONCLUSIONS Findings suggest that while both intervention strategies were equally effective in achieving desired health outcomes, the brief SE + CM appeared less expensive to deliver.
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Affiliation(s)
- S X Zhang
- San Diego State University, Department of Sociology, San Diego, CA, USA.
| | - S Shoptaw
- University of California at Los Angeles, David Geffen School of Medicine, Los Angeles, CA, USA.
| | - C J Reback
- Friends Research Institute, Inc., University of California at Los Angeles, Integrated Substance Abuse Programs, Semel Institute for Neuroscience and Human Behavior, Los Angeles, CA, USA.
| | - K Yadav
- University of California at Irvine, Sue & Bill Gross School of Nursing, Irvine, CA, USA
| | - A M Nyamathi
- University of California at Irvine, Sue & Bill Gross School of Nursing, Irvine, CA, USA.
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Zhang K, Ma FR, Song WM, Pan T, Ke J, Xin Y, Zhang SX, Tao LY. [Bone conduction in tympanosclerosis patients and its changes after surgery for tympanosclerosis]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2017; 31:1228-1230. [PMID: 29798367 DOI: 10.13201/j.issn.1001-1781.2017.16.003] [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: 04/26/2017] [Indexed: 11/12/2022]
Abstract
Objective:To investigate the bone conduction (BC) in tympanosclerosis patients and its changes after surgery for tympanosclerosis, as well as its possible causes.Method:Retrospectively analyzed 30 cases of tympanosclerosis patients.Result:Before surgery, the average BC of the operated ear was (21.06±8.88) dBHL, the average BC of the healthy side was (16.78±8.97) dBHL, the difference had a statistical significance (t= 3.072, P< 0.01). The BC threshold, air conduction (AC) and ABG were significantly lower after operation. Preoperative BC at 2 000 Hz was the highest threshold (25.17±10.95) dBHL, and the postoperative decrease of BC thresholds at 500 Hz, 1 000 Hz and 2 000 Hz were statistically significant (P< 0.05 or P< 0.01). Tympanoplasty with mastoidectomy for BC threshold improvement was better than only tympanoplasty (P< 0.05)Conclusion:Tympanosclerosis leads to elevated BC threshold. Removal of tympanosclerosis lesions together with the removal of the lesions in antrum and mastoid and the reconstruction of sound conduction structures not only improve AC hearing and shorten ABG, but also improve postoperative BC hearing significantly.
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Affiliation(s)
- K Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, Peking University Third Hospital, Beijing, 100191, China
| | - F R Ma
- Department of Otorhinolaryngology Head and Neck Surgery, Peking University Third Hospital, Beijing, 100191, China
| | - W M Song
- Department of Otorhinolaryngology Head and Neck Surgery, Peking University Third Hospital, Beijing, 100191, China
| | - T Pan
- Department of Otorhinolaryngology Head and Neck Surgery, Peking University Third Hospital, Beijing, 100191, China
| | - J Ke
- Department of Otorhinolaryngology Head and Neck Surgery, Peking University Third Hospital, Beijing, 100191, China
| | - Y Xin
- Department of Otorhinolaryngology Head and Neck Surgery, Peking University Third Hospital, Beijing, 100191, China
| | - S X Zhang
- Department of Otorhinolaryngology Head and Neck Surgery, Peking University Third Hospital, Beijing, 100191, China
| | - L Y Tao
- Research Center of Clinical Epidemiology, Peking University Third Hospital
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Yang WC, Xie YT, Zhu WK, Park K, Chen AP, Losovyj Y, Li Z, Liu HM, Starr M, Acosta JA, Tao CG, Li N, Jia QX, Heremans JJ, Zhang SX. Epitaxial thin films of pyrochlore iridate Bi 2+xIr 2-yO 7-δ: structure, defects and transport properties. Sci Rep 2017; 7:7740. [PMID: 28798487 PMCID: PMC5552750 DOI: 10.1038/s41598-017-06785-w] [Citation(s) in RCA: 25] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2016] [Accepted: 05/15/2017] [Indexed: 11/09/2022] Open
Abstract
While pyrochlore iridate thin films are theoretically predicted to possess a variety of emergent topological properties, experimental verification of these predictions can be obstructed by the challenge in thin film growth. Here we report on the pulsed laser deposition and characterization of thin films of a representative pyrochlore compound Bi2Ir2O7. The films were epitaxially grown on yttria-stabilized zirconia substrates and have lattice constants that are a few percent larger than that of the bulk single crystals. The film composition shows a strong dependence on the oxygen partial pressure. Density-functional-theory calculations indicate the existence of BiIr antisite defects, qualitatively consistent with the high Bi: Ir ratio found in the films. Both Ir and Bi have oxidation states that are lower than their nominal values, suggesting the existence of oxygen deficiency. The iridate thin films show a variety of intriguing transport characteristics, including multiple charge carriers, logarithmic dependence of resistance on temperature, antilocalization corrections to conductance due to spin-orbit interactions, and linear positive magnetoresistance.
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Affiliation(s)
- W C Yang
- Department of Physics, Indiana University, Bloomington, Indiana, 47405, USA
| | - Y T Xie
- Department of Physics, Virginia Tech, Blacksburg, Virginia, 24061, USA
| | - W K Zhu
- Department of Physics, Indiana University, Bloomington, Indiana, 47405, USA
| | - K Park
- Department of Physics, Virginia Tech, Blacksburg, Virginia, 24061, USA
| | - A P Chen
- Center for Integrated Nanotechnologies, Los Alamos National Laboratory, Los Alamos, 87545, USA
| | - Y Losovyj
- Department of Chemistry, Indiana University, Bloomington, Indiana, 47405, USA
| | - Z Li
- Department of Physics, Indiana University, Bloomington, Indiana, 47405, USA.,Center for Integrated Nanotechnologies, Los Alamos National Laboratory, Los Alamos, 87545, USA
| | - H M Liu
- Department of Physics, Indiana University, Bloomington, Indiana, 47405, USA
| | - M Starr
- Department of Physics, Indiana University, Bloomington, Indiana, 47405, USA
| | - J A Acosta
- Department of Physics, Indiana University, Bloomington, Indiana, 47405, USA
| | - C G Tao
- Department of Physics, Virginia Tech, Blacksburg, Virginia, 24061, USA
| | - N Li
- Center for Integrated Nanotechnologies, Los Alamos National Laboratory, Los Alamos, 87545, USA
| | - Q X Jia
- Center for Integrated Nanotechnologies, Los Alamos National Laboratory, Los Alamos, 87545, USA.,Department of Materials Design and Innovation, University at Buffalo, The State University of New York, Buffalo, NY, 14260, USA
| | - J J Heremans
- Department of Physics, Virginia Tech, Blacksburg, Virginia, 24061, USA
| | - S X Zhang
- Department of Physics, Indiana University, Bloomington, Indiana, 47405, USA.
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Zhang SX, Luo D, Liu HS, Bao Y, Pei C, Duan YQ. [A case of hemophagocytic syndrome secondary to extranodal nasal type NK/T cell lymphoma ⅡB]. Zhonghua Kou Qiang Yi Xue Za Zhi 2017; 52:515-516. [PMID: 28835036 DOI: 10.3760/cma.j.issn.1002-0098.2017.08.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- S X Zhang
- Department of Stomatology, The Fourth Hospital of Hebei Medical University, Shijiazhuang 050010, China
| | - D Luo
- Department of Stomatology, The Fourth Hospital of Hebei Medical University, Shijiazhuang 050010, China
| | - H S Liu
- Department of Stomatology, The Fourth Hospital of Hebei Medical University, Shijiazhuang 050010, China
| | - Y Bao
- Department of Stomatology, The Fourth Hospital of Hebei Medical University, Shijiazhuang 050010, China
| | - C Pei
- Department of Stomatology, The Fourth Hospital of Hebei Medical University, Shijiazhuang 050010, China
| | - Y Q Duan
- Department of Stomatology, The Fourth Hospital of Hebei Medical University, Shijiazhuang 050010, China
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Hu XY, Zheng XY, Ma FR, Long M, Han R, Zhou LJ, Wang F, Gong R, Pan T, Zhang SX, Du B, Jin P, Guo CY, Zheng YQ, Liu M, He LH, Qiu JH, Xu M, Song L, Xu XH, Liu XW, Wang SP. [Prevalence of hearing disorders in China: a population-based survey in four provinces of China]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2017; 51:819-825. [PMID: 27938607 DOI: 10.3760/cma.j.issn.1673-0860.2016.11.004] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the prevalence, severity of hearing disorders and demographics of people with hearing disorders based on the whole population in Jilin, Guangdong, Shannxi and Gansu provinces in China. Methods: According to " WHO Ear and Hearing Disorders Survey Protocol" , 144 clusters were chosen with probability proportional sampling(PPS) method from the four provinces covering 194, 688, 061 residents. Audiological test, otological examination and questionnaire surveying were conducted for all samples from August, 2014 to September, 2015. The hearing disorders were classified according to WHO criteria and classification. Results: Among 47 511 targeted residents, 45, 052 individuals (94.82% response rate) participated in the survey. The standardized prevalence rates of hearing disorders and disabling hearing disorders were 15.84 % and 5.17 % respectively. Almost 50% of people with hearing disorders had no awareness of it or its starting time. There was significant difference in the prevalence among people of different ages, genders, occupations, provinces, marital status and education levels. The prevalence of hearing disorders increased significantly as age grew. People above 60 years old occupied 55.31% of the total hearing disorders. The prevalence of hearing disorders among male, people of low education and those who lost husband or wife, as well as workers and farmers was relatively higher. Conclusions: The prevalence of hearing disorders is high, and hearing disorders are " invisible" . Demographics and socioeconomic factors significantly influence the prevalence of hearing disorders.
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Affiliation(s)
- X Y Hu
- China Rehabilitation Research Center for Deaf Children, Beijing 100029, China
| | - X Y Zheng
- Institute of Population Research, Peking University, Beijing 100871, China
| | - F R Ma
- Department of Otorhinolaryngology, Peking University Third Hospital, Beijing 100191, China
| | - M Long
- China Rehabilitation Research Center for Deaf Children, Beijing 100029, China
| | - R Han
- China Rehabilitation Research Center for Deaf Children, Beijing 100029, China
| | - L J Zhou
- China Rehabilitation Research Center for Deaf Children, Beijing 100029, China
| | - F Wang
- China Rehabilitation Research Center for Deaf Children, Beijing 100029, China
| | - R Gong
- Institute of Population Research, Peking University, Beijing 100871, China
| | - T Pan
- Department of Otorhinolaryngology, Peking University Third Hospital, Beijing 100191, China
| | - S X Zhang
- Department of Otorhinolaryngology, Peking University Third Hospital, Beijing 100191, China
| | - B Du
- Department of Otorhinolaryngology Head and Neck Surgery, the First Hospital of Jilin University, Changchun 130021, China
| | - P Jin
- Department of Otorhinolaryngology Head and Neck Surgery, the First Hospital of Jilin University, Changchun 130021, China
| | - C Y Guo
- Language and Hearing Rehabilitation Center of Jilin Province, Changchun 130052, China
| | - Y Q Zheng
- Department of Otorhinolaryngology Head and Neck Surgery, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China
| | - M Liu
- Otorhinolaryngology Hospital of First Affiliated Hospital of Sun Yetsan University, Guangzhou 510080, China
| | - L H He
- Guangdong Rehabilitation Centre, Guangzhou 510055, China
| | - J H Qiu
- Department of Otorhinolaryngology Head and Neck Surgery, Xijing Hospital, Xi'an 710032, China
| | - M Xu
- Department of Otorhinolaryngology Head and Neck Surgery, Second Affiliated Hospital, Xi'an Jiaotong University School of Medicine, Xi'an 710004, China
| | - L Song
- Language and Hearing Rehabilitation Center of Shanxi Province, Xi'an 710016, China
| | - X H Xu
- Department of Otorhinolaryngology, Lanzhou General Hospital, Lanzhou Command, Lanzhou 730050, China
| | - X W Liu
- Department of Otorhinolaryngology, Lanzhou University Second Hospital, Lanzhou 730030, China
| | - S P Wang
- Hearing and Language Rehabilitation Center of Gangsu Province, Lanzhou 730050, China
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Cai YL, Zhang SX, Yang PC, Lin Y. [Cost-effectiveness and cost-benefit analysis on strategy for preventing mother-to-child transmission of hepatitis B virus]. Zhonghua Liu Xing Bing Xue Za Zhi 2017; 37:846-51. [PMID: 27346114 DOI: 10.3760/cma.j.issn.0254-6450.2016.06.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE Through cost-benefit analysis (CBA), cost-effectiveness analysis (CEA) and quantitative optimization analysis to understand the economic benefit and outcomes of strategy regarding preventing mother-to-child transmission (PMTCT) on hepatitis B virus. METHODS Based on the principle of Hepatitis B immunization decision analytic-Markov model, strategies on PMTCT and universal vaccination were compared. Related parameters of Shenzhen were introduced to the model, a birth cohort was set up as the study population in 2013. The net present value (NPV), benefit-cost ratio (BCR), incremental cost-effectiveness ratio (ICER) were calculated and the differences between CBA and CEA were compared. RESULTS A decision tree was built as the decision analysis model for hepatitis B immunization. Three kinds of Markov models were used to simulate the outcomes after the implementation of vaccination program. The PMTCT strategy of Shenzhen showed a net-gain as 38 097.51 Yuan/per person in 2013, with BCR as 14.37. The universal vaccination strategy showed a net-gain as 37 083.03 Yuan/per person, with BCR as 12.07. Data showed that the PMTCT strategy was better than the universal vaccination one and would end with gaining more economic benefit. When comparing with the universal vaccination program, the PMTCT strategy would save 85 100.00 Yuan more on QALY gains for every person. The PMTCT strategy seemed more cost-effective compared with the one under universal vaccination program. In the CBA and CEA hepatitis B immunization programs, the immunization coverage rate and costs of hepatitis B related diseases were the most important influencing factors. Outcomes of joint-changes of all the parameters in CEA showed that PMTCT strategy was a more cost-effective. CONCLUSIONS The PMTCT strategy gained more economic benefit and effects on health. However, the cost of PMTCT strategy was more than the universal vaccination program, thus it is important to pay attention to the process of PMTCT strategy and the universal vaccination program. CBA seemed suitable for strategy optimization while CEA was better for strategy evaluation. Hopefully, programs as combination of the above said two methods would facilitate the process of economic evaluation.
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Affiliation(s)
- Y L Cai
- School of Public Health, Zhengzhou University, Zhengzhou 450001, China
| | - S X Zhang
- Shenzhen Center for Disease Control and Prevention, Shenzhen 518055, China
| | - P C Yang
- School of Public Health, Guangdong Pharmaceutical University, Guangzhou 510006, China
| | - Y Lin
- School of Public Health, Guangdong Pharmaceutical University, Guangzhou 510006, China
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Xu EZ, Liu HM, Park K, Li Z, Losovyj Y, Starr M, Werbianskyj M, Fertig HA, Zhang SX. p-Type transition-metal doping of large-area MoS 2 thin films grown by chemical vapor deposition. Nanoscale 2017; 9:3576-3584. [PMID: 28246665 DOI: 10.1039/c6nr09495c] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Two-dimensional transition metal dichalcogenides (e.g. MoS2) have recently emerged as a promising material system for electronic and optoelectronic applications. A major challenge for these materials, however, is to realize bipolar electrical transport properties (i.e. both p-type and n-type conduction), which is critical for enhancing device performance and functionalities. Here, we demonstrate the transition metal zinc as a p-type dopant in the otherwise n-type MoS2, through systematic characterizations of large area Zn-doped MoS2 thin films grown by a one-step chemical vapor deposition (CVD) approach. Raman characterization and X-ray photoelectron spectroscopy studies identified millimeter-scale, monolayer films with 1-2% Zn as dopants. Zinc doping suppresses n-type conductivity in MoS2 and shifts its Fermi level downwards. The stability and p-type nature of Zn dopants were further confirmed by density-functional-theory calculations of formation energies and electronic band structures. The electrical transport properties of Zn-MoS2 films can be influenced by stoichiometry, and p-type gate transfer characteristics were realized by thermal treatment under a sulfur atmosphere. Our work highlights transition-metal doping followed by sulfur vacancy elimination in CVD grown films as a promising route for achieving large area p-type transition metal dichalcogenide films that are essential for practical applications in electronics and optoelectronics.
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Affiliation(s)
- E Z Xu
- Department of Physics, Indiana University, Bloomington, IN 47405, USA.
| | - H M Liu
- Department of Physics, Indiana University, Bloomington, IN 47405, USA.
| | - K Park
- Department of Physics, Virginia Tech, Blacksburg, Virginia 24061, USA
| | - Z Li
- Department of Physics, Indiana University, Bloomington, IN 47405, USA.
| | - Y Losovyj
- Department of Chemistry, Indiana University, Bloomington, IN 47405, USA
| | - M Starr
- Department of Physics, Indiana University, Bloomington, IN 47405, USA.
| | - M Werbianskyj
- Department of Physics, Indiana University, Bloomington, IN 47405, USA.
| | - H A Fertig
- Department of Physics, Indiana University, Bloomington, IN 47405, USA.
| | - S X Zhang
- Department of Physics, Indiana University, Bloomington, IN 47405, USA.
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Abstract
Ras association domain family member 5 (RASSF5), a member of the Ras association domain family, induces cell apoptosis by phosphorylating FOXO3a, which triggers target gene BIM (pro-apoptotic factor) activation. MiR-214 is overexpressed in oral cancer tissue, indicating its possible involvement in oral cancer pathogenesis. Bioinformatics analysis has revealed a complimentary sequence between miR-214 and the 3'-UTR of RASSF5 mRNA. However, whether miR-124 regulates RASSF5 in oral cancer remains poorly understood. We aimed to investigate the role of miR-214 in RASSF5 expression regulation in oral cancer. Tumor and paracarcinoma tissues were obtained from 48 oral cancer patients to examine miR-214 and RASSF5 expression. The relationship between miR-214 and RASSF5 was investigated by dual luciferase reporter gene assay. Oral cancer KB cells were cultured in vitro and divided into inhibitor NC, miR-214 inhibitor, Scramble-pMD18, RASSF5-pMD18, and miR-214 inhibitor + RASSF5-pMD18 groups. Caspase 3 activity, cell apoptosis, and total protein expression were measured by spectrophotometry, flow cytometry, and western blot, respectively. MiR-214 expression was significantly increased, while that of RASSF5 decreased in oral cancer tumor tissues compared to paracarcinoma tissues. Luciferase assay showed that miR-214 suppressed RASSF5 expression by targeting its 3'-UTR. Down-regulation of miR-214 and/or enhancement of RASSF5 expression markedly increased FOXO3a phosphorylation, BIM expression, caspase 3 activity, and apoptosis. In conclusion, miR-214 expression was elevated and RASSF5 was down-regulated in oral cancer. Moreover, miR-214 regulated KB cell apoptosis through targeted inhibition of RASSF5 expression, FOXO3a phosphorylation, and BIM expression, suggesting its possible application as a novel therapeutic oral cancer target.
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Affiliation(s)
- T K Li
- Department of Stomatology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - K Yin
- Department of Stomatology, Xingtai People's Hospital of Hebei Medical University, Xingtai, Hebei, China
| | - Z Chen
- Department of Stomatology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - Y Bao
- Department of Stomatology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
| | - S X Zhang
- Department of Stomatology, The Fourth Hospital of Hebei Medical University, Shijiazhuang, Hebei, China
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Wu YL, Hu LN, Zheng CD, Sun RC, Zhang SX, Yan Q, Li YX. [Expression of hypoxia-inducible factor 1α in gastric cancer and its clinical signficance]. Zhonghua Yi Xue Za Zhi 2016; 96:1418-23. [PMID: 27266349 DOI: 10.3760/cma.j.issn.0376-2491.2016.18.007] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To explore the expression level and location of hypoxia-inducible factor 1α (HIF-1α) in gastric cancer (GC) tissues and their relationship with clinicopathological features and clinical outcomes. METHODS From July to September 2015, 27 pairs of fresh paired GC tissues and adjacent normal tissues were gathered from the Eighth Department of General Surgery of the First Affiliated Hospital of Anhui Medical University. Quantitative real-time PCR (qRT-PCR) and Western blot were performed to detect the expression of HIF-1α mRNA and protein in these tissues. A total of 191 GC tissues and 46 randomly selected adjacent normal gastric tissues were consecutively collected between December 2006 and September 2008 from Department of General Surgery of the same hospital. Immunohistochemistry were performed on them to detect the expression of HIF-1α and CD34[described in terms of microvessel density (MVD)], and correlation of different locations of HIF-1α (in cytoplasm or nucleus) with MVD, clinicopathological features, and clinical prognosis was analyzed. RESULTS The average relative expression level of HIF-1α mRNA in GC tissues (0.625±0.170) was significantly higher than in normal adjacent tissues (0.218±0.036, t=2.336, P=0.023) by qRT-PCR. From the results of Western blot, the expression level of HIF-1α protein increased in GC tissues compared with its corresponding normal tissues. Immunohistochemistry results revealed that positive HIF-1α staining was observed in 67.54% GC tissues and 45.65% normal tissues, with significant difference (P=0.006). And 35.08% in GC and 45.65% in normal tissues were cytoplasmic positive (P=0.138); while 37.17% in GC and only 2.17% in normal tissues were nuclear positive, with significant difference (P<0.001). High differentiation group and TNM clinical early stage (Ⅰ+ Ⅱ) group had significantly higher cytoplasmic HIF-1α expression positive rate compared with low differentiation group (P=0.008) and TNM clinical intermediate-advanced stage (Ⅲ+ Ⅳ) group (P=0.019); whereas low differentiation group had significantly higher nuclear HIF-1α expression positive rate compared with high differentiation group (P=0.043). The mean MVD in the nuclear HIF-1α positive GC group (115.6 ± 7.8) was higher than that in the cytoplasmic HIF-1α positive GC group (93.1±7.5, t=2.077, P=0.040). The median follow-up time was 56(3-81)months. Kaplan-Meier survival analysis and Log-Rank test results showed that nuclear HIF-1α positive patients had a shorter survival time (median 45 months) than cytoplasmic HIF-1α positive patients (median 64 months, P<0.001). Multivariate Cox regression analysis revealed that differentiation (HR=1.713; 95% CI: 1.019-2.882), depth of invasion (tumor stage, HR=6.137; 95% CI: 1.832-20.556) and lymph node metastasis (HR=2.788; 95% CI: 1.313-5.920) were independent prognostic factors for GC (all P<0.05). CONCLUSION Different location of HIF-1α protein may be realted to the tumorigenesis and progression of GC, and may become a potential prognostic indicator of GC.
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Affiliation(s)
- Y L Wu
- Eighth Department of General Surgery, First Affiliated Hospital of Anhui Medical University, Hefei 230022, China
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Zhang SX, Zhou H, Zhu XY, Jiang H, Wu YJ, Liang J, Yi XH. [Low-grade synovial sarcoma of heel: report of a case]. Zhonghua Bing Li Xue Za Zhi 2016; 45:484-485. [PMID: 27430699 DOI: 10.3760/cma.j.issn.0529-5807.2016.07.015] [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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Jiang Q, Liu ZC, Zhang SX. [A survey on tyrosine kinase inhibitor treatment in patients with chronic myeloid leukemia in China: from patients'perspective]. Zhonghua Xue Ye Xue Za Zhi 2016; 37:559-64. [PMID: 27535854 PMCID: PMC7365001 DOI: 10.3760/cma.j.issn.0253-2727.2016.07.004] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/17/2016] [Indexed: 01/31/2023]
Abstract
OBJECTIVES To assess tyrosine kinase inhibitor (TKI) treatment status in patients with chronic myeloid leukemia (CML) in China and analyze the response-associated factors. METHODS From May to November in 2014, anonymous questionnaires were distributed to adult CML patients who were receiving TKI treatment all over China. RESULTS 1 038 questionnaires were collected, 949 questionnaires were evaluable. Of the 949 evaluable respondents, 549 (58%) were male with the median age of 41 years (range, 18 to 88 years). 623 (66%) respondents lived in an urban area and 449 (47%) had an education level ≥ a bachelor degree. 888 (94%) respondents were in the chronic phase at diagnosis, and 690 (78%) of them started TKI treatment within one year after diagnosis. 794 (84%) respondents were on imatinib, 768 (81%) on the branded. With a median TKI treatment duration of 3 years (range, <1 to 13 years), 708 of 834 (85%) evaluable respondents achieved Ph- negative (i.e. complete cytogenetic response, CCyR), and 497 of 859 (46% ) BCR- ABL negative (i.e. complete molecular response, CMR). Multivariate analyses showed that female (OR=1.8, 95% CI 1.1-2.8,P=0.019 andOR=1.5, 95% CI 1.1-2.0,P=0.015), TKI treatment duration >3 years (OR=4.1, 95% CI 2.6- 6.5,P<0.001 andOR=3.7, 95% CI 2.7- 5.1,P< 0.001) and imatinib taken (OR=2.1, 95% CI 1.2-3.7,P=0.007 andOR=3.3, 95% CI 2.1-5.1,P<0.001) were factors affecting achieving both CCyR and CMR. In addition, higher education level (OR=2.0, 95% CI 1.3- 3.1,P=0.003), starting TKI treatment <1 year (OR=2.4, 95% CI 1.5- 3.8,P<0.001) and branded drugs received (OR=2.4, 95% CI 1.4- 4.0,P=0.001) were factors affecting achieving a CCyR. In 884 respondents, 534 (62%) reported " heavy financial burden" as the biggest treatment impediment, only 152 (17%) reported " poor quality of life related to adverse effects of TKI". CONCLUSIONS The survey showed that majority of the Chinese CML patients received imatinib as a TKI therapy, and most of the patients achieved satisfied responses by TKI. Financial burden became the major obstacle during TKI treatment.
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Affiliation(s)
- Q Jiang
- Peking University People's Hospital, Peking University Institute of Hematology, Beijing Key Laboratory of Hematopoietic Stem Cell Transplantation, Beijing 100044, China
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Xu EZ, Li Z, Martinez JA, Sinitsyn N, Htoon H, Li N, Swartzentruber B, Hollingsworth JA, Wang J, Zhang SX. Diameter dependent thermoelectric properties of individual SnTe nanowires. Nanoscale 2015; 7:2869-2876. [PMID: 25623253 DOI: 10.1039/c4nr05870d] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
The lead-free compound tin telluride (SnTe) has recently been suggested to be a promising thermoelectric material. In this work, we report on the first thermoelectric study of individual single-crystalline SnTe nanowires with different diameters ranging from ∼218 to ∼913 nm. Measurements of thermopower S, electrical conductivity σ and thermal conductivity κ were carried out on the same nanowires over a temperature range of 25-300 K. While the electrical conductivity does not show a strong diameter dependence, the thermopower increases by a factor of two when the nanowire diameter is decreased from ∼913 nm to ∼218 nm. The thermal conductivity of the measured NWs is lower than that of the bulk SnTe, which may arise from the enhanced phonon - surface boundary scattering and phonon-defect scattering. Temperature dependent figure of merit ZT was determined for individual nanowires and the achieved maximum value at room temperature is about three times higher than that in bulk samples of comparable carrier density.
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Affiliation(s)
- E Z Xu
- Department of Physics, Indiana University, Bloomington, Indiana 47405, USA.
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Zhang SX, Kriza C, Schaller SU, Kolominsky-Rabas PL. Analysis of Cardiac Implants Recalls in the Last Decade: An International Comparison. Value Health 2014; 17:A499. [PMID: 27201504 DOI: 10.1016/j.jval.2014.08.1497] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Affiliation(s)
- S X Zhang
- Centre for Health Technology Assessment (HTA) and Public Health (IZPH), Friedrich-Alexander-University Erlangen-Nürnberg, Erlangen, Germany
| | - C Kriza
- Centre for Health Technology Assessment (HTA) and Public Health (IZPH), Friedrich-Alexander-University Erlangen-Nürnberg, Erlangen, Germany
| | - S U Schaller
- Centre for Health Technology Assessment (HTA) and Public Health (IZPH), Friedrich-Alexander-University Erlangen-Nürnberg, Erlangen, Germany
| | - P L Kolominsky-Rabas
- Centre for Health Technology Assessment (HTA) and Public Health (IZPH), Friedrich-Alexander-University Erlangen-Nürnberg, Erlangen, Germany
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Zhang SX, Kriza C, Kolominsky-Rabas PL. Accessing the Medical Device Market in the People's Republic of China--Policy Changes Since the Restructuring of the China Fda. Value Health 2014; 17:A414-A415. [PMID: 27201027 DOI: 10.1016/j.jval.2014.08.998] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Affiliation(s)
- S X Zhang
- Centre for Health Technology Assessment (HTA) and Public Health (IZPH), Friedrich-Alexander-University Erlangen-Nürnberg, Erlangen, Germany
| | - C Kriza
- Centre for Health Technology Assessment (HTA) and Public Health (IZPH), Friedrich-Alexander-University Erlangen-Nürnberg, Erlangen, Germany
| | - P L Kolominsky-Rabas
- Centre for Health Technology Assessment (HTA) and Public Health (IZPH), Friedrich-Alexander-University Erlangen-Nürnberg, Erlangen, Germany
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Li Z, Shao S, Li N, McCall K, Wang J, Zhang SX. Single crystalline nanostructures of topological crystalline insulator SnTe with distinct facets and morphologies. Nano Lett 2013; 13:5443-5448. [PMID: 24138562 DOI: 10.1021/nl4030193] [Citation(s) in RCA: 11] [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] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
Topological crystalline insulators (TCIs) are a new class of topological materials that possess unique metallic surface states protected by crystalline mirror symmetry. Their topological surface properties are expected to strongly depend on the surface orientation. By combining density functional theory (DFT) calculations and synthesis experiments, we demonstrate the controlled growth of single crystalline nanostructures of the prototypical TCI SnTe with distinct facets and morphologies. Our calculations suggest that the excess energy of the {111} surfaces can be either higher or lower than that of the {100} surfaces, depending on the stoichiometry, while the {110} is always higher than the {100}. In our synthesis experiment, we qualitatively controlled the stoichiometry by tailoring the growth temperature and obtained two types of single crystalline nanowires: smooth nanowires dominated by {100} facets at high temperatures and zigzag nanowires composed of both {100} and {111} surfaces at low temperatures. Notably, there is no {110} facet in our nanostructures, strongly supporting the DFT calculations. Our device fabrication and electrical characterizations suggest that both types of nanowires are suitable for transport studies of topological surface states.
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Affiliation(s)
- Z Li
- Department of Physics, Indiana University , Bloomington, Indiana 47405, United States
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Wang X, Zhang X, Li X, Amos RA, Shaitelman SF, Hoffman K, Howell R, Salehpour M, Zhang SX, Sun TL, Smith B, Tereffe W, Perkins GH, Buchholz TA, Strom EA, Woodward WA. Accelerated partial-breast irradiation using intensity-modulated proton radiotherapy: do uncertainties outweigh potential benefits? Br J Radiol 2013; 86:20130176. [PMID: 23728947 PMCID: PMC3755395 DOI: 10.1259/bjr.20130176] [Citation(s) in RCA: 20] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/26/2013] [Revised: 05/22/2013] [Accepted: 05/29/2013] [Indexed: 11/07/2022] Open
Abstract
OBJECTIVE Passive scattering proton beam (PSPB) radiotherapy for accelerated partial-breast irradiation (APBI) provides superior dosimetry for APBI three-dimensional conformal photon radiotherapy (3DCRT). Here we examine the potential incremental benefit of intensity-modulated proton radiotherapy (IMPT) for APBI and compare its dosimetry with PSPB and 3DCRT. METHODS Two theoretical IMPT plans, TANGENT_PAIR and TANGENT_ENFACE, were created for 11 patients previously treated with 3DCRT APBI and were compared with PSPB and 3DCRT plans for the same CT data sets. The impact of range, motion and set-up uncertainties as well as scanned spot mismatching between fields of IMPT plans was evaluated. RESULTS IMPT plans for APBI were significantly better regarding breast skin sparing (p<0.005) and other normal tissue sparing than 3DCRT plans (p<0.01) with comparable target coverage (p=ns). IMPT plans were statistically better than PSPB plans regarding breast skin (p<0.002) and non-target breast (p<0.007) in higher dose regions but worse or comparable in lower dose regions. IMPT plans using TANGENT_ENFACE were superior to that using TANGENT_PAIR in terms of target coverage (p<0.003) and normal tissue sparing (p<0.05) in low-dose regions. IMPT uncertainties were demonstrated for multiple causes. Qualitative comparison of dose-volume histogram confidence intervals for IMPT suggests that numeric gains may be offset by IMPT uncertainties. CONCLUSION Using current clinical dosimetry, PSPB provides excellent dosimetry compared with 3DCRT with fewer uncertainties compared with IMPT. ADVANCES IN KNOWLEDGE As currently delivered in the clinic, PSPB planning for APBI provides as good or better dosimetry than IMPT with less uncertainty.
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Affiliation(s)
- X Wang
- Department of Radiation Physics, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
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Dufresne SF, LeBlanc RE, Zhang SX, Marr KA, Neofytos D. Histoplasmosis and subcutaneous nodules in a kidney transplant recipient: erythema nodosum versus fungal panniculitis. Transpl Infect Dis 2013; 15:E58-63. [PMID: 23331504 DOI: 10.1111/tid.12052] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2012] [Revised: 10/26/2012] [Accepted: 11/23/2012] [Indexed: 11/30/2022]
Abstract
Erythema nodosum (EN)-like lesions are a rare occurrence after solid organ transplantation. Differential diagnosis includes infective panniculitis, which can be a feature of progressive disseminated histoplasmosis (PDH), an uncommon but severe form affecting primarily immunocompromised hosts. We report on a fatal case of PDH, which presented as fungal panniculitis masquerading as EN in a renal allograft recipient 25 years after transplantation. We discuss the clinical, histopathological, and microbiological characteristics of this rare complication, with focus on its distinction from EN. This case emphasizes the central role of biopsy in transplant recipients presenting with cutaneous lesions, and the importance of clinicopathologic correlation and complementary microbiological investigations.
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Affiliation(s)
- S F Dufresne
- Division of Infectious Diseases, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland 21205, USA
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Young OA, Zhang SX, Farouk MM, Podmore C. Effects of pH adjustment with phosphates on attributes and functionalities of normal and high pH beef. Meat Sci 2012; 70:133-9. [PMID: 22063289 DOI: 10.1016/j.meatsci.2004.12.018] [Citation(s) in RCA: 27] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2004] [Revised: 12/14/2004] [Accepted: 12/14/2004] [Indexed: 11/13/2022]
Abstract
Longissimus dorsi muscles from six normal- and six high-ultimate pH bulls were selected for fine mincing and subsequent pH adjustment with acid and alkaline pyrophosphate. Four pH treatments were prepared: initially high remains high (mean of pH 6.37), high becomes normal (5.62); initially normal remains normal (5.65), and normal becomes high (6.21). The addition level of phosphate as P(2)O(5) was the same in all replicates. Before pH adjustment, colour and water holding capacity (WHC) values were strongly affected by higher (initial) pH in expected ways: darker, lower chroma, higher capacity. After pH adjustment, these values were affected only by the final pH, not the initial pH (the pH history). Total protein solubility was likewise affected by final pH but not initial pH. In contrast, the combination high initial pH-high final pH improved sarcoplasmic protein solubility by 20% over the combination normal initial pH-high final pH. Sarcoplasmic protein solubility is an indicator of strain required to fracture cooked batters made from the minced meats; in the event, the rank order of the four treatments for strain-to-fracture matched that of sarcoplasmic protein solubility. Statistically, sarcoplasmic protein solubility and strain-to-fracture were both affected by initial pH (P<0.01) and final pH (P<0.001). However, stress required to fracture cooked batters was entirely controlled by initial pH (P<0.01). In other words, the stress-to-fracture advantage of initially high pH meat was not matched by upward pH adjustment of initially normal pH meat. Emulsion stability, which is better with higher pH meat, was affected by initial and final pH (both P<0.01). Cook yield, like WHC of pH-adjusted raw meat, was more due to final pH than initial pH, similarly cooked batter colour, whereas final pH had a significant effect on quality attributes (generally better when higher). An initially high pH history conferred an enduring advantage on three important batter attributes, stress-to-fracture, strain-to-fracture, and emulsion stability. Therefore, prior exposure of beef to normal pH conditions (pH 5.4-5.7) renders it less useful as a manufacturing grade product.
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Affiliation(s)
- O A Young
- Department of Applied Science, Auckland University of Technology, Auckland, New Zealand
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Tan KE, Ellis BC, Lee R, Stamper PD, Zhang SX, Carroll KC. Prospective evaluation of a matrix-assisted laser desorption ionization-time of flight mass spectrometry system in a hospital clinical microbiology laboratory for identification of bacteria and yeasts: a bench-by-bench study for assessing the impact on time to identification and cost-effectiveness. J Clin Microbiol 2012; 50:3301-8. [PMID: 22855510 PMCID: PMC3457442 DOI: 10.1128/jcm.01405-12] [Citation(s) in RCA: 247] [Impact Index Per Article: 20.6] [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: 05/31/2012] [Accepted: 07/24/2012] [Indexed: 11/20/2022] Open
Abstract
Matrix-assisted laser desorption ionization-time of flight mass spectrometry (MALDI-TOF MS) has been found to be an accurate, rapid, and inexpensive method for the identification of bacteria and yeasts. Previous evaluations have compared the accuracy, time to identification, and costs of the MALDI-TOF MS method against standard identification systems or commercial panels. In this prospective study, we compared a protocol incorporating MALDI-TOF MS (MALDI protocol) with the current standard identification protocols (standard protocol) to determine the performance in actual practice using a specimen-based, bench-by-bench approach. The potential impact on time to identification (TTI) and costs had MALDI-TOF MS been the first-line identification method was quantitated. The MALDI protocol includes supplementary tests, notably for Streptococcus pneumoniae and Shigella, and indications for repeat MALDI-TOF MS attempts, often not measured in previous studies. A total of 952 isolates (824 bacterial isolates and 128 yeast isolates) recovered from 2,214 specimens were assessed using the MALDI protocol. Compared with standard protocols, the MALDI protocol provided identifications 1.45 days earlier on average (P < 0.001). In our laboratory, we anticipate that the incorporation of the MALDI protocol can reduce reagent and labor costs of identification by $102,424 or 56.9% within 12 months. The model included the fixed annual costs of the MALDI-TOF MS, such as the cost of protein standards and instrument maintenance, and the annual prevalence of organisms encountered in our laboratory. This comprehensive cost analysis model can be generalized to other moderate- to high-volume laboratories.
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Affiliation(s)
- K E Tan
- Johns Hopkins University School of Medicine, Baltimore, MD, USA
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Zhang SX, Yang PW, Zhang DC, Dong WQ, Zhang FH, Sun YM. Pharmacokinetics, tissue distribution, and metabolism of novel DNA topoisomerase I inhibitor yuanhuacine in rabbit. Xenobiotica 2009; 39:273-81. [PMID: 19280526 DOI: 10.1080/00498250802715987] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
Abstract
A liquid chromatography/tandem mass spectrometry method was developed and validated for the quantitative determination of yuanhuacine (YHC), a daphne diterpene ortho-ester anticancer agent, and identification of its metabolites. Pharmacokinetic behaviour, tissue distribution, and metabolism were investigated in rabbit. YHC plasma data best fitted to a two-compartment model and were characterized by an elimination half-life t(1/2)(beta) of 11.1 h following intravenous administration. Tissue distribution studies did not identify any tissues having a high affinity for YHC. The main metabolites are proposed to be M392I, M392II, and M390, resulting from the ortho-ester group and aromatic ester bond being cleaved off simultaneously during Phase I metabolism. This investigation contributes to an understanding of the metabolism of daphne diterpene ortho-esters.
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Affiliation(s)
- S X Zhang
- State Key Laboratory of Fine Chemicals, School of Chemical Engineering, Dalian University of Technology, Dalian, P. R. China.
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Yu Y, Jenkins AJ, Nankervis AJ, Hanssen KF, Scholz H, Henriksen T, Lorentzen B, Clausen T, Garg SK, Menard MK, Hammad SM, Scardo JC, Stanley JR, Dashti A, May K, Lu K, Aston CE, Wang JJ, Zhang SX, Ma JX, Lyons TJ. Anti-angiogenic factors and pre-eclampsia in type 1 diabetic women. Diabetologia 2009; 52:160-8. [PMID: 18985316 DOI: 10.1007/s00125-008-1182-x] [Citation(s) in RCA: 47] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/29/2008] [Accepted: 09/13/2008] [Indexed: 11/27/2022]
Abstract
AIMS/HYPOTHESIS Elevated anti-angiogenic factors such as soluble fms-like tyrosine kinase 1 (sFlt1), a soluble form of vascular endothelial growth factor receptor, and endoglin, a co-receptor for TGFbeta1, confer high risk of pre-eclampsia in healthy pregnant women. In this multicentre prospective study, we determined levels of these and related factors in pregnant women with type 1 diabetes, a condition associated with a fourfold increase in pre-eclampsia. METHODS Maternal serum sFlt1, endoglin, placental growth factor (PlGF) and pigment epithelial derived factor were measured in 151 type 1 diabetic and 24 healthy non-diabetic women at each trimester and at term. RESULTS Approximately 22% of the diabetic women developed pre-eclampsia, primarily after their third trimester visit. In women with pre-eclampsia (diabetic pre-eclampsia, n = 26) vs those without hypertensive complications (diabetic normotensive, n = 95), significant changes in angiogenic factors were observed, predominantly in the early third trimester and prior to clinical manifestation of pre-eclampsia. Serum sFlt1 levels were increased approximately twofold in type 1 diabetic pre-eclampsia vs type 1 diabetic normotensive women at the third trimester visit (p < 0.05) and the normal rise of PlGF during pregnancy was blunted (p < 0.05). Among type 1 diabetic women, third trimester sFlt1 and PlGF were inversely related (r(2) = 42%, p < 0.0001). Endoglin levels were increased significantly in the diabetic group as a whole vs the non-diabetic group (p < 0.0001). CONCLUSIONS/INTERPRETATION Higher sFlt1 levels, a blunted PlGF rise and an elevated sFlt1/PlGF ratio are predictive of pre-eclampsia in pregnant women with type 1 diabetes. Elevated endoglin levels in women with type 1 diabetes may confer a predisposition to pre-eclampsia and may contribute to the high incidence of pre-eclampsia in this patient group.
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Affiliation(s)
- Y Yu
- Harold Hamm Oklahoma Diabetes Center & Section of Endocrinology and Diabetes, University of Oklahoma Health Sciences Center, Oklahoma City, OK 73104, USA
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Gu LN, Cheng XW, Zhang SX, He JF, Hu DS, Lv X, Wu CL, Lu JH, Fang SS. [Study on molecular epidemiological characteristics of influenza H1N1 viruses circulating in Shenzhen, China from 2005 to 2007]. Zhonghua Liu Xing Bing Xue Za Zhi 2008; 29:459-463. [PMID: 18956678] [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: 05/27/2023]
Abstract
OBJECTIVE To study the genetic and epidemiological characteristics of HA1 of influenza H1N1 viruses circulating in Shenzhen from 2005 to 2007. METHODS The HA1 region was analyzed by RT-PCR and subsequently sequenced to analyze the HA1 genetic evolution. Phylogenetic analysis was confirmed on the homology of nucleotide comparing with the reference viruses of vaccines recommended by WHO and representative virus confirmed by China CDC. Relationship between isolation rates and genetic evolutions was explored. RESULTS The average isolation rate from 2005 to 2007 was 7.16%. Of the isolates, the proportions of influenza H1N1 viruses in 2005, 2006 and 2007 were 56.14%, 66.03%, 3.61%, respectively. Data from HA1 phylogenetic analysis showed that there were at least three clades circulated in Shenzhen. Different viruses isolated during January to April were clustered with A/New Caledonia/20/1999 viruses isolated in the latter months of 2005 clustered with A/Solomon Island/3/2006 and viruses from 2006 to 2007 were in the same clade with A/GDLH/219/2006. Results showed that most viruses had a deletion of lysine at position 130. Compared with A/New Caledonia/20/1999, the virus isolated after May of 2005 occurred T82K, Y94H, R146K, R209K, T267N amino acid substitution, while some virus isolated after May 2006 took place the amino acid substitutions of A190T, H193Y, E195D (located at antigenic site B) and R146K (antigenic site A). The sequences at the receptor-binding sites and glycosylation sites were conserved. Compared with referring viruses, A/SZ/68/2007 had 50 amino acid substitutions in the HA1 region. Of these, eleven and six were located at antigenic sites and receptor-binding sites, respectively. Four amino acid substitution resulted in the deletion of glycosylation site. CONCLUSION Three different genetic lineages of influenza H1N1 virus were circulated in the population in Shenzhen during 2005 - 2007. The special virus named A/SZ/68/2007 should be paid further attention on its antigenic and epidemiological characteristics.
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Affiliation(s)
- Li-Niu Gu
- School of Public Health, Zhengzhou University, Zhengzhou 450001, China
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Zhang SX, Cheng JQ, Ma HW, He JF, Cheng XW, Jiang LJ, Mou J, Wu CL, Lv X, Zhang SH, Zhang YD, Wu YS, Wang X. [A case of human highly pathogenic avian influenza in Shenzhen, China: application of field epidemiological study]. Zhonghua Liu Xing Bing Xue Za Zhi 2008; 29:248-252. [PMID: 18788523] [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: 05/26/2023]
Abstract
OBJECTIVE Based on analyzing the characteristics of a case with human avian influenza and the effects of field epidemiological study. METHODS An emergency-response-system was started up to follow the probable human Highly Pathogenic Avian Influenza case initially detected by the "Undefined Pneumonia Surveillance System of Shenzhen". Public health professionals administered several epidemiologic investigations and giving all the contacts of the patient with a 7-day-long medical observation for temporally related influenza-like illness. Reverse transcriptase-polymerase chain reaction (RT-PCR) with primers for H5 and N1 was applied to test respiratory tract samples and/or throat swabs of the patient and all his contacts specific for the hemagglutinin gene of influenza A H5N1. Activities and strategies such as media response,notification in the public, communications with multiple related sectors, social participation and information exchange with Hong Kong were involved in field control and management. RESULTS The patient was a male, 31 years old,with an occupation as a truck driver in a factory,and had been residing in Shenzhen for 7 years. Started with an influenza-like syndrome, the patient received treatment on the 4th day of the onset, from a clinic and on the 6th day from a regular hospital. On the 8th day of the disease course, he was confirmed by Shenzhen Center for Disease Control and Prevention as human avian flu case and was then transferred to Intensive Care Unit (ICU). On the 83rd day of commence, the patients was healed and released from the hospital. The patient had no significant exposure to sick poultry or poultry that died from the illness before the onset of the disease. The patient and five family members lived together, but no family member was affected and no contact showed positive results for H5N1. A small food market with live poultry, which was under formal supervision and before illness the patient once visited, located near his apartment. Totally, 35 swabs from live birds and bird's coops in the market for H5 nucleic acid were tested and all were negative. The influenza H5N1 virus isolated for the case was named as A/Guangdong/02/2006 (H5N1) or GD/2/06. Phylogenetic relationships and molecular characterization analysis revealed that all the segments of the H5N1 virus named GD/2/06 still belonged to avian segments. Investigation process and control measures were released to the general public through the media. Soon after the laboratory confirmation, information was released to the society, as well as Hong Kong Center for Health Protection. Local Departments of Agriculture, Industries & Business, and Entry-Exit Inspection & Quarantine Bureau together with the Public Health Department put up combined actions. A computer-based telephone survey was initiated to investigate attitudes and knowledge of residents in town, revealing that positive atmosphere dominated and no panic existed. CONCLUSION Rapid laboratory diagnosis of the virus was the key for successful treatment and survival result of the case. Still, the pathogen was from birds resources. No human-to-human transmission was observed, however, source of infection was unclear. Field epidemiological study could offer special methods for the responses of emergency public health problems.
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Affiliation(s)
- Shun-Xiang Zhang
- Shenzhen Center for Disease Control and Prevention, Shenzhen, China
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He JF, Lv X, Cheng XW, Wu CL, Zhang SX, Shu YL, Fang SS, Lu JH, Gu LN, Lai JW, Gao RB. [Laboratory diagnosis and molecular characterization analysis of the H5N1 influenza virus isolated from the first human case in Shenzhen, China]. Bing Du Xue Bao 2008; 24:28-33. [PMID: 18320819] [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: 05/26/2023]
Abstract
The tracheal aspirates and serum samples of a suspected human case of high-pathogenic avian influenza (firstly found in Shenzhen, China) were collected and tested by a series of assays. The results showed that the RNA extracted from the tracheal aspirate specimens of the patient was confirmed positive for H5N1 avian influenza virus by Real-time PCR. The H5N1 avian influenza virus was isolated from patient's tracheal aspirates on MDCK cell and was named A/Guangdong/2/06(H5N1). The viral load of tracheal aspirates collected at different time points were detected by Real-time PCR. The virus microneutralization and the antigenic ratio of human H5N1 isolated were also assayed. It was found that when the virus load decreased gradually after the disease onset, the serum neutralizing antibody titer in the patient increased to 1 : 160 and subsequently decreased gradually. By molecular analysis, the eight gene segments of A/Guangdong/2/06 revealed to be similar to that of H5N1 avian influenza viruses isolated from south China in 2005-2006. However, there were obvious differences in the gene sequence of the detected H5N1 viral RNA as compared with that of the strains isolated from Vietnam, Thailand and Indonesia.
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Affiliation(s)
- Jian-Fan He
- Shenzhen Center for Disease Control and Prevention, Shenzhen 518020, Guangdong, China
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Jenkins AJ, Zhang SX, Rowley KG, Karschimkus CS, Nelson CL, Chung JS, O'Neal DN, Januszewski AS, Croft KD, Mori TA, Dragicevic G, Harper CA, Best JD, Lyons TJ, Ma JX. Increased serum pigment epithelium-derived factor is associated with microvascular complications, vascular stiffness and inflammation in Type 1 diabetes. Diabet Med 2007; 24:1345-51. [PMID: 17971181 DOI: 10.1111/j.1464-5491.2007.02281.x] [Citation(s) in RCA: 67] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
AIMS To determine in Type 1 diabetes patients if levels of pigment epithelium-derived factor (PEDF), an anti-angiogenic, anti-inflammatory and antioxidant factor, are increased in individuals with complications and positively related to vascular and renal dysfunction, body mass index, glycated haemoglobin, lipids, inflammation and oxidative stress. METHODS Serum PEDF levels were measured by ELISA in a cross-sectional study of 123 Type 1 diabetic patients (71 without and 52 with microvascular complications) and 31 non-diabetic control subjects. PEDF associations with complication status, pulse-wave analysis and biochemical results were explored. RESULTS PEDF levels [geometric mean (95% CI)] were increased in patients with complications 8.2 (7.0-9.6) microg/ml, vs. complication-free patients [5.3 (4.7-6.0) microg/ml, P < 0.001] and control subjects [5.3 (4.6-6.1) microg/ml, P < 0.001; anova between three groups, P < 0.001], but did not differ significantly between control subjects and complication-free patients (P > 0.05). In diabetes, PEDF levels correlated (all P < 0.001) with systolic blood pressure (r = 0.317), pulse pressure (r = 0.337), small artery elasticity (r = -0.269), glycated haemoglobin (r = 0.245), body mass index (r = 0.362), renal dysfunction [including serum creatinine (r = 0.491), cystatin C (r = 0.500)], triglycerides (r = 0.367), and inflammation [including log(e)C-reactive protein (CRP; r = 0.329), and soluble vascular cell adhesion molecule-1 (r = 0.363)]. Age, blood urea nitrogen, systolic blood pressure, pulse pressure and log(e)CRP correlated with PEDF levels in control subjects (all P < 0.04). PEDF levels were not significantly correlated with measures of oxidative stress: isoprostanes, oxidized low-density lipoprotein or paraoxonase-1 activity. On stepwise linear regression analysis (all subjects), independent determinants of PEDF levels were renal function, triglycerides, inflammation, small artery elasticity and age (r(2) = 0.427). CONCLUSIONS In Type 1 diabetes, serum PEDF levels are associated with microvascular complications, poor vascular health, hyperglycaemia, adiposity and inflammation.
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Affiliation(s)
- A J Jenkins
- University of Melbourne, Department of Medicine, St Vincent's Hospital, Melbourne, Australia.
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Chen HH, Zhang RL, Geng YJ, Cheng JQ, Zhang SX, Huang DN, Yu L, Gao ST, Zhu XQ. Identification of differentially expressed genes in female Culex pipiens pallens. Parasitol Res 2007; 101:511-5. [PMID: 17347850 DOI: 10.1007/s00436-007-0506-y] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [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: 01/16/2007] [Accepted: 02/20/2007] [Indexed: 10/23/2022]
Abstract
Culex pipiens pallens is the mosquito vector of a number of human pathogens such as Wuchereria bancrofti, Brugia malayi, and epidemic encephalitis B virus. Female C. pipiens pallens play an important role in transmitting pathogens by sucking blood, which is essential for reproduction. In the present study, a subtractive cDNA library for female C. pipiens pallens was constructed by the suppression subtractive hybridization (SSH) technique and then 100 clones from the female SSH library were sequenced and analyzed. Female-differentially expressed genes in C. pipiens pallens were screened using semiquantitative RT-PCR. The full-length cDNA of an EST sequence (fs68) that was specifically expressed in female C. pipiens pallens was characterized by 3' and 5' rapid amplification of cDNA ends (RACE). The characteristics of the female-specific gene were further analyzed using bioinformatics and Northern blot. It was shown that the female-specific gene was a previously uncharacterized gene and may encode a salivary peptide. This putative salivary peptide could be a very important molecule in the blood feeding of female C. pipiens pallens.
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Affiliation(s)
- Hong-Hong Chen
- Laboratory of Molecular Biology, Shenzhen Center for Disease Control and Prevention, 21 Tian Bai No. 1 Street, Shenzhen, Guangdong Province, 518020, People's Republic of China
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Abstract
AIMS To investigate the relationship of the K469E and G241R polymorphisms of the intercellular adhesion molecule 1 (ICAM-1) gene with diabetic retinopathy in Chinese patients with Type 2 diabetes mellitus. PATIENTS AND METHODS One hundred and seventy-two Chinese patients with Type 2 diabetes and 80 normal control subjects were recruited. Patients with diabetes were placed into two groups: the diabetic retinopathy (DR) group and the non-diabetic retinopathy (NDR) group. The DR group was subdivided into those with proliferative retinopathy (PDR) and non-proliferative retinopathy (NPDR). Genomic DNA was prepared using the hydroxybenzene-chloroform extraction method. Genotypes and alleles were detected by polymerase chain reaction-heteroduplex-single-strand conformation polymorphism (PCR-HA-SSCP) analysis combined with gene sequencing. RESULTS The patients with retinopathy had an increased frequency of the K469K genotype compared with both the patients without retinopathy and the control subjects (61.4 vs. 40.0 and 35.0%, respectively; chi(2) = 8.280 and 13.952, respectively; P < 0.05). The frequency of the K allele in the DR group was higher than in the NDR group and control subjects (75.4 vs. 58.8 and 61.3%, respectively; chi(2) = 9.693 and 11.219, respectively; P < 0.05). Genotype and allele frequencies were similar in the NDR group and control subjects, and in the PDR and NPDR groups. CONCLUSION The ICAM-1 gene K469E polymorphism is associated with diabetic retinopathy in Chinese patients with Type 2 diabetes. Patients with the K469K genotype were more likely to have diabetic retinopathy than patients with the K469E or E469E genotype.
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Affiliation(s)
- L Liu
- Key Laboratory of Ophthalmology of Ministry of Education, Zhongshan Ophthalmic Center, Sun Yat-sen University, Guangzhou, Guangdong, China
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48
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Abstract
An ELISA was developed for routine screening of ractopamine in swine feeds. Swine feed samples were extracted and purified, and the aqueous portion of the extract was analyzed for ractopamine using ELISA and confirmed by HPLC. For swine complex feeds containing ractopamine at 2.5 to 40 mg/kg, the average recoveries ranged from 73.1 to 86.5% by ELISA and 81.9 to 98.2% by HPLC. For the swine supplement containing ractopamine at 50 to 400 mg/kg, the average recoveries were 105.5 to 111.4% by ELISA and 89.1 to 92.9% by HPLC. The limit of detection was 0.24 microg/g by ELISA and 0.48 microg/g by HPLC, respectively. Results from the swine complex feeds (P = 0.009) and the supplement (P = 0.005) using ELISA and HPLC were not highly correlated. The ELISA was more sensitive and rapid and less expensive than the HPLC method and could be used for ractopamine screening in swine feeds before confirmation and quantification by other methods, such as HPLC.
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Affiliation(s)
- J P Wang
- Department of Veterinary Pharmacology and Toxicology, College of Veterinary Medicine, China Agricultural University, Beijing 100094, People's Republic of China
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49
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Abstract
Virtual reality based learning of human anatomy is feasible when a database of 3D organ models is available for the learner to explore, visualize, and dissect in virtual space interactively. In this article, we present our latest work on photorealistic virtual anatomy applications based on the Chinese Visible Human (CVH) data. We have focused on the development of state-of-the-art virtual environments that feature interactive photo-realistic visualization and dissection of virtual anatomical models constructed from ultra-high resolution CVH datasets. We also outline our latest progress in applying these highly accurate virtual and functional organ models to generate realistic look and feel to advanced surgical simulators.
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Affiliation(s)
- P A Heng
- Department of Computer Science and Engineering, The Chinese University of Hong Kong, Hong Kong.
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50
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Zhang SX, Geddes JW, Owens JL, Holmberg EG. X-irradiation reduces lesion scarring at the contusion site of adult rat spinal cord. Histol Histopathol 2005; 20:519-30. [PMID: 15736057 DOI: 10.14670/hh-20.519] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Spinal cord injury (SCI) results in cell death and tissue destruction, and ultimately cavitation followed by the formation of lesion scars at the injury site. The lesion scars include an astrocytic component (glial scar) and a fibroblastic component (connective tissue scar). The purpose of the present study is to determine if X-irradiation could minimize the formation of lesion scars and reduce the levels of chondroitin sulfate proteoglycans (CSPGs) in the contusion SCI model of the adult rat. Two weeks after SCI, a connective tissue scar formed at the injury site consisting primarily of fibroblasts and exhibits strong CSPG immunoreactivity. The fibroblasts might originate from the connective tissue of pia mater or arachnoid mater. At the same time, reactive astrocytes in the spared tissue accumulate surrounding the lesion cavity to form a thick glial scar with significant enhancement of glial fibrillary acidic protein (GFAP) and CSPG immunoreactivity. After X-irradiation (40 Gy) of the injury site 2 days post-injury, that results in an attenuated dose to the lesion, the connective tissue scar was not observed, and accordingly, almost no CSPG immunoreactivity was detected at this area. Meanwhile, the glial scar and its CSPG immunoreactivity were prominently reduced. X-irradiation did not show significant improvement in locomotor recovery, but resulted in a slight delay of body weight recovery following injury. This preparative treatment could be used to reduce secondary scarring in the lesion resulting in an enriched site for further treatment such as growth related transplantation.
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Affiliation(s)
- S X Zhang
- Spinal Cord Society Research Center, Fort Collins, Colorado, USA.
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