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Yi SH, Xiong WJ, Cao XX, Sun CY, Du J, Wang HH, Wang L, Niu T, Jiang ZX, Wei YQ, Xue H, Chu HL, Qiu LG, Li J. [Diagnosis and treatment understanding of Waldenström macroglobulinemia in China: a cross-sectional study]. Zhonghua Xue Ye Xue Za Zhi 2024; 45:148-155. [PMID: 38604791 DOI: 10.3760/cma.j.cn121090-20231017-00212] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 04/13/2024]
Abstract
Objective: To conduct a nationwide physician survey to better understand clinicians' disease awareness, treatment patterns, and experience of Waldenström macroglobulinemia (WM) in China. Methods: This cross-sectional study was conducted from February 2022 to July 2022 by recruiting clinicians with WM treatment experience from hematology, hematology-oncology, and oncology departments throughout China. Quantitative surveys were designed based on the qualitative interviews. Results: The study included 415 clinicians from 219 hospitals spread across thirty-three cities and twenty-two provinces. As for diagnosis, the laboratory tests prescribed by physicians for suspected WM patients were relatively consistent (92% -99% recommendation for laboratory, 79% -95% recommendation for pathology, 96% recommendation for gene testing, and 63% -83% recommendation for imaging examination). However, from a physician's perspective, there was 22% misdiagnosis occurred in clinical practice. The rate of misdiagnosis was higher in lower-level hospitals than in tertiary grade A hospitals (29% vs 21%, P<0.001). The main reasons for misdiagnosis were that WM was easily confused with other diseases, and physicians lacked the necessary knowledge to make an accurate diagnosis. In terms of gene testing in clinical practice, 96% of participating physicians believed that WM patients would require gene testing for MYD88 and CXCR4 mutations because the results of gene testing would aid in confirming diagnosis and treatment options. In terms of treatment, 55% of physicians thought that the most important goal was to achieve remission, while 54% and 51% of physicians wanted to improve laboratory and/or examination results and extend overall survival time, respectively. Among patients with treatment indications, physicians estimated that approximately 21% of them refused to receive treatment, mainly owing to a lack of affordable care and disease awareness. When selecting the most appropriate treatment regimens, physicians would consider patient affordability (63% ), comorbidity (61% ), and risk level (54% ). Regimens containing Bruton tyrosine kinase inhibitor (BTKi) were most widely recommended for both treatment-naïve and relapsed/refractory patients (94% for all patients, 95% for treatment-naïve patients, and 75% for relapsed/refractory patients), and most physicians recommended Ibrutinib (84% ). For those patients who received treatment, physicians reported that approximately 23% of patients did not comply with the treatment regimen due to a lack of affordability and disease awareness. Furthermore, 66% of physicians believe that in the future, increasing disease awareness and improving diagnosis rates is critical. Conclusions: This study is the first national physician survey of WM conducted in China. It systematically describes the issues that exist in WM diagnosis and treatment in China, such as a high rate of misdiagnosis, limited access to gene testing and new drugs, and poor patient adherence to treatment. Chinese doctors believe that improving doctors' and patients' understanding of WM is one of the most urgent issues that must be addressed right now.
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Affiliation(s)
- S H Yi
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China Tianjin Institutes of Health Science, Tianjin 301600, China
| | - W J Xiong
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China Tianjin Institutes of Health Science, Tianjin 301600, China
| | - X X Cao
- Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - C Y Sun
- Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - J Du
- The Second Affiliated Hospital of Naval Medical University (Shanghai Changzheng Hospital), Shanghai 200003, China
| | - H H Wang
- Shengjing Hospital of China Medical University, Shenyang 110004, China
| | - L Wang
- Shanghai Institute of Hematology, State Key Laboratory of Medical Genomics, National Research Center for Translational Medicine at Shanghai, Ruijin Hospital Affiliated to Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - T Niu
- West China Hospital of Sichuan University, Chengdu 610044, China
| | - Z X Jiang
- The First Affiliated Hospital of Zhengzhou University, Zhengzhou 450000, China
| | - Y Q Wei
- Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - H Xue
- The Affiliated Hospital of Hebei University, Baoding 071030, China
| | - H L Chu
- Peking University Third Hospital, Beijing 100083, China
| | - L G Qiu
- State Key Laboratory of Experimental Hematology, National Clinical Research Center for Blood Diseases, Haihe Laboratory of Cell Ecosystem, Institute of Hematology & Blood Diseases Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Tianjin 300020, China Tianjin Institutes of Health Science, Tianjin 301600, China
| | - J Li
- Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing 100730, China
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Wei YQ, Lyu LH, Li M. [Research progress on eosinophils in lung cancer]. Zhonghua Yu Fang Yi Xue Za Zhi 2023; 57:1895-1900. [PMID: 38008583 DOI: 10.3760/cma.j.cn112150-20230421-00312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 11/28/2023]
Abstract
Eosinophils are important immune cells that contain eosinophilic particles and play a key role in allergic diseases such as asthma and helminth infections. An increasing number of studies have confirmed that eosinophils infiltrate a variety of tumor tissues, which can synthesize and secrete a large number of bioactive substances under certain circumstances, such as cytotoxic cationic proteins, cytokines, growth factors, chemokines, enzymes and so on, which may affect angiogenesis and matrix remodeling or change the tumor microenvironment, thereby affecting tumor progression. This review focused on the role of eosinophils in lung cancer and provided an outlook on the issues in clinical and basic research.
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Affiliation(s)
- Y Q Wei
- School of Laboratory Medicine, Bengbu Medical College, Bengbu 233030, China Department of Laboratory Medicine, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230032, China
| | - L H Lyu
- Department of Laboratory Medicine, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230032, China
| | - M Li
- Department of Laboratory Medicine, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230032, China
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Wei YQ, Wan BN, Shen B, Yang L, Ji F, Wang Y, Chen M, Liu ZJ. An alternating continuous integration system for magnetic measurements for experimental advanced superconducting tokamak. Rev Sci Instrum 2023; 94:115101. [PMID: 37909840 DOI: 10.1063/5.0169108] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/23/2023] [Accepted: 10/11/2023] [Indexed: 11/03/2023]
Abstract
Integrators are critical instruments used for magnetic measurement systems (MMSs) in tokamaks, and, currently, the Experimental Advanced Superconducting Tokamak (EAST) has over 600 deployed. However, these integrators, designed with real-time drift compensation, will not be able to support longer pulse operations in the near future due to saturation and drift. To address these issues, this paper proposes a new alternating integration system combining analog integration with drift digital rectification. This system utilizes a microcontroller unit (MCU) to control two parallel analog integrators to work alternatively, compensate their drifts based on their respective error characteristics, and assemble the two integration segments together. The designed architecture provides highly flexible capabilities in operation modes and error correction, which make the system operation and maintenance highly automated. Performance tests on the EAST experiment site show that the prototype integrator can meet the requirements of real-time plasma control for a duration of hour-level.
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Affiliation(s)
- Y Q Wei
- School of Instrument Science and Optoelectronics Engineering, Hefei University of Technology, Hefei 230009, China
| | - B N Wan
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China
| | - B Shen
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China
| | - L Yang
- School of Instrument Science and Optoelectronics Engineering, Hefei University of Technology, Hefei 230009, China
| | - F Ji
- School of Instrument Science and Optoelectronics Engineering, Hefei University of Technology, Hefei 230009, China
| | - Y Wang
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China
| | - M Chen
- Institute of Plasma Physics, Chinese Academy of Sciences, Hefei 230031, China
| | - Z J Liu
- School of Instrument Science and Optoelectronics Engineering, Hefei University of Technology, Hefei 230009, China
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Li XJ, Wei YQ, Gao CL, Xia ZK. [Pathogeny and treatment of systemic lupus erythematosus complicated with thrombotic microangiopathy]. Zhonghua Er Ke Za Zhi 2023; 61:753-756. [PMID: 37528023 DOI: 10.3760/cma.j.cn112140-20221231-01078] [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: 08/03/2023]
Affiliation(s)
- X J Li
- Department of Pediatrics, Nanjing Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210002, China
| | - Y Q Wei
- Department of Pediatrics, Jinling Hospital, the First School of Clinical Medicine, Southern Medical University, Nanjing 210002, China
| | - C L Gao
- Department of Pediatrics, Nanjing Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210002, China
| | - Z K Xia
- Department of Pediatrics, Nanjing Jinling Hospital, Affiliated Hospital of Medical School, Nanjing University, Nanjing 210002, China
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Lyu X, Zhang WY, Zhang JX, Wei YQ, Guo XL, Cui SH, Yan JY, Zhang XY, Qiao C, Zhou R, Gu WR, Chen XX, Yang Z, Li XT, Lin JH. [Regional analysis of high risk factors of hypertensive disorders in pregnancy with organ or system impairment]. Zhonghua Fu Chan Ke Za Zhi 2023; 58:416-422. [PMID: 37357600 DOI: 10.3760/cma.j.cn112141-20230218-00073] [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: 06/27/2023]
Abstract
Objective: To explore the influencing factors of pregnancy-induced hypertensive disorders in pregnancy (HDP) with organ or system impairment in pregnant women, and to analyze and compare the differences of HDP subtypes in different regions of China. Methods: A total of 27 680 pregnant women with HDP with complete data from 161 hospitals in 24 provinces, autonomous regions and municipalities were retrospectively collected from January 1, 2018 to December 31, 2018. According to their clinical manifestations, they were divided into hypertension group [a total of 10 308 cases, including 8 250 cases of gestational hypertension (GH), 2 058 cases of chronic hypertension during pregnancy] and hypertension with organ or system impairment group [17 372 cases, including 14 590 cases of pre-eclampsia (PE), 137 cases of eclampsia, 2 645 cases of chronic hypertension with PE]. The subtype distribution of HDP in East China (6 136 cases), North China (4 821 cases), Central China (3 502 cases), South China (8 371 cases), Northeast China (1 456 cases), Southwest China (2 158 cases) and Northwest China (1 236 cases) were analyzed. By comparing the differences of HDP subtypes and related risk factors in different regions, regional analysis of the risk factors of HDP pregnant women with organ or system impairment was conducted. Results: (1) The proportions of HDP pregnant women with organ or system impairment in Northeast China (79.05%, 1 151/1 456), Central China (68.42%, 2 396/3 502) and Northwest China (69.34%, 857/1 236) were higher than the national average (62.76%, 17 372/27 680); the proportions in North China (59.18%, 2 853/4 821), East China (60.85%, 3 734/6 136) and South China (59.56%, 4 986/8 371) were lower than the national average, and the differences were statistically significant (all P<0.05). (2) Univariate analysis showed that the proportions of primiparas, non-Han, non-urban household registration, irregular prenatal examination and PE history in the hypertension with organ or system impairment group were higher than those in the hypertension group, and the differences were statistically significant (all P<0.05). Multivariate logistic regression analysis showed that primiparas, non-Han, non-urban household registration, irregular prenatal examination and PE history were independent risk factors for HDP pregnant women with organ or system impairment (all P<0.05). (3) Primipara: the rates of primipara in Northeast China, North China and Southwest China were higher than the national average level, while those in South China, Central China and Northwest China were lower than the national average level. Non-Han nationality: the rates of non-Han nationality in Northeast China, North China and Northwest China were higher than the national average, while those in East China, South China and Central China were lower than the national average. Non-urban household registration: the rates of non-urban household registration in Northeast China, North China, and Southwest China were lower than the national average, while those in East China, Central China were higher than the national average. Irregular prenatal examination: the rates of irregular prenatal examination in North China, South China and Southwest regions were lower than the national average level, while those in Northeast China, Central China and Northwest China were higher than the national average level. History of PE: the incidence rates of PE in Northeast China, North China, South China and Southwest China were lower than the national average level, while those in Central China and Northwest China were higher than the national average level. Conclusions: Primiparas, non-Han, non-urban household registration, irregular prenatal examination, and PE history are risk factors for HDP pregnant women with organ or system impairment. Patients in Northeast, Central and Northwest China have more risk factors, and are more likely to be accompanied by organ or system function damage. It is important to strengthen the management of pregnant women and reduce the occurrence of HDP.
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Affiliation(s)
- X Lyu
- Department of Obstetrics and Gynecology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - W Y Zhang
- Department of Obstetrics, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing 100026, China
| | - J X Zhang
- Department of Obstetrics and Gynecology, the Fourth Hospital of Shijiazhuang, Shijiazhuang 050035, China
| | - Y Q Wei
- Department of Obstetrics and Gynecology, Affiliated Hospital of Jining Medical University, Jining 272007, China
| | - X L Guo
- Department of Obstetrics, Changzhi Maternity and Child Health Care Hospital of Shanxi Province, Changzhi 046000, China
| | - S H Cui
- Department of Obstetrics and Gynecology, the Third Affiliated Hospital of Zhengzhou University, Zhengzhou 450015, China
| | - J Y Yan
- Department of Obstetrics, Fujian Maternity and Child Health Care Hospital, Fuzhou 350005, China
| | - X Y Zhang
- Department of Obstetrics and Gynecology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - C Qiao
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang 117004, China
| | - R Zhou
- Department of Obstetrics, West China Second University Hospital, Sichuan University, Chengdu 610044, China
| | - W R Gu
- Department of Obstetrics, Obstetrics and Gynecology Hospital of Fudan University, Shanghai 200082, China
| | - X X Chen
- Department of Obstetrics, Anhui Province Maternity and Child Health Hospital, Hefei 230001, China
| | - Z Yang
- Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100191, China
| | - X T Li
- Department of Obstetrics, Obstetrics and Gynecology Hospital of Fudan University, Shanghai 200082, China
| | - J H Lin
- Department of Obstetrics and Gynecology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
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Cai LJ, Wei XL, Wei YQ, Guo XT, Jiang XJ, Zhang Y, Yu GP, Dai M, Ye JY, Zhou HS, Xu D, Huang F, Fan ZP, Xu N, Shi PC, Xuan L, Feng R, Liu XL, Sun J, Liu QF. [A single-center study on the distribution and antibiotic resistance of pathogens causing bloodstream infection in patients with hematological malignancies]. Zhonghua Xue Ye Xue Za Zhi 2023; 44:479-483. [PMID: 37550203 PMCID: PMC10450548 DOI: 10.3760/cma.j.issn.0253-2727.2023.06.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Indexed: 08/09/2023]
Abstract
Objective: To study the incidence of bloodstream infections, pathogen distribution, and antibiotic resistance profile in patients with hematological malignancies. Methods: From January 2018 to December 2021, we retrospectively analyzed the clinical characteristics, pathogen distribution, and antibiotic resistance profiles of patients with malignant hematological diseases and bloodstream infections in the Department of Hematology, Nanfang Hospital, Southern Medical University. Results: A total of 582 incidences of bloodstream infections occurred in 22,717 inpatients. From 2018 to 2021, the incidence rates of bloodstream infections were 2.79%, 2.99%, 2.79%, and 2.02%, respectively. Five hundred ninety-nine types of bacteria were recovered from blood cultures, with 487 (81.3%) gram-negative bacteria, such as Klebsiella pneumonia, Escherichia coli, and Pseudomonas aeruginosa. Eighty-one (13.5%) were gram-positive bacteria, primarily Staphylococcus aureus, Staphylococcus epidermidis, and Enterococcus faecium, whereas the remaining 31 (5.2%) were fungi. Enterobacteriaceae resistance to carbapenems, piperacillin/tazobactam, cefoperazone sodium/sulbactam, and tigecycline were 11.0%, 15.3%, 15.4%, and 3.3%, with a descending trend year on year. Non-fermenters tolerated piperacillin/tazobactam, cefoperazone sodium/sulbactam, and quinolones at 29.6%, 13.3%, and 21.7%, respectively. However, only two gram-positive bacteria isolates were shown to be resistant to glycopeptide antibiotics. Conclusions: Bloodstream pathogens in hematological malignancies were broadly dispersed, most of which were gram-negative bacteria. Antibiotic resistance rates vary greatly between species. Our research serves as a valuable resource for the selection of empirical antibiotics.
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Affiliation(s)
- L J Cai
- Department of Hematology, Nanfang Hospital, Southern Medical University, GuangZhou 510515, China
| | - X L Wei
- Department of Hematology, Nanfang Hospital, Southern Medical University, GuangZhou 510515, China
| | - Y Q Wei
- Department of Hematology, Nanfang Hospital, Southern Medical University, GuangZhou 510515, China
| | - X T Guo
- Department of Hematology, Nanfang Hospital, Southern Medical University, GuangZhou 510515, China
| | - X J Jiang
- Department of Hematology, Nanfang Hospital, Southern Medical University, GuangZhou 510515, China
| | - Y Zhang
- Department of Hematology, Nanfang Hospital, Southern Medical University, GuangZhou 510515, China
| | - G P Yu
- Department of Hematology, Nanfang Hospital, Southern Medical University, GuangZhou 510515, China
| | - M Dai
- Department of Hematology, Nanfang Hospital, Southern Medical University, GuangZhou 510515, China
| | - J Y Ye
- Department of Hematology, Nanfang Hospital, Southern Medical University, GuangZhou 510515, China
| | - H S Zhou
- Department of Hematology, Nanfang Hospital, Southern Medical University, GuangZhou 510515, China
| | - D Xu
- Department of Hematology, Nanfang Hospital, Southern Medical University, GuangZhou 510515, China
| | - F Huang
- Department of Hematology, Nanfang Hospital, Southern Medical University, GuangZhou 510515, China
| | - Z P Fan
- Department of Hematology, Nanfang Hospital, Southern Medical University, GuangZhou 510515, China
| | - N Xu
- Department of Hematology, Nanfang Hospital, Southern Medical University, GuangZhou 510515, China
| | - P C Shi
- Department of Hematology, Nanfang Hospital, Southern Medical University, GuangZhou 510515, China
| | - L Xuan
- Department of Hematology, Nanfang Hospital, Southern Medical University, GuangZhou 510515, China
| | - R Feng
- Department of Hematology, Nanfang Hospital, Southern Medical University, GuangZhou 510515, China
| | - X L Liu
- Department of Hematology, Nanfang Hospital, Southern Medical University, GuangZhou 510515, China
| | - J Sun
- Department of Hematology, Nanfang Hospital, Southern Medical University, GuangZhou 510515, China
| | - Q F Liu
- Department of Hematology, Nanfang Hospital, Southern Medical University, GuangZhou 510515, China
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Wei YQ, Li XJ, Gao CL, Xia ZK. [Research progress in growth of chronic kidney disease in children]. Zhonghua Er Ke Za Zhi 2023; 61:474-477. [PMID: 37096271 DOI: 10.3760/cma.j.cn112140-20221104-00936] [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: 04/26/2023]
Affiliation(s)
- Y Q Wei
- Department of Pediatrics, Jinling Hospital, the First School of Clinical Medicine, Southern Medical University, Nanjing 210002, China
| | - X J Li
- Department of Pediatrics, Jinling Hospital, Nanjing University School of Medicine, Nanjing 210002, China
| | - C L Gao
- Department of Pediatrics, Jinling Hospital, the First School of Clinical Medicine, Southern Medical University, Nanjing 210002, China
| | - Z K Xia
- Department of Pediatrics, Jinling Hospital, the First School of Clinical Medicine, Southern Medical University, Nanjing 210002, China
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Zhou QZ, Liu TY, Wei YQ, Dong NN, Guo JF, Li P, Ji M, Niu YL, Wang YJ, Zhang ST. [The role of preventive pancreatic duct stent placement in preventing acute pancreatitis after endoscopic retrograde cholangiopancreatography]. Zhonghua Yu Fang Yi Xue Za Zhi 2022; 56:990-993. [PMID: 35899354 DOI: 10.3760/cma.j.cn112150-20211107-01032] [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: 06/15/2023]
Abstract
The aim of this study was to investigate the preventive effect of pancreatic duct stent on acute pancreatitis after endoscopic retrograde cholangiopancreatography. A retrospective analysis of the case data of patients who first underwent endoscopic retrograde cholangiopancreatography for choledocholithiasis in the Beijing Friendship Hospital from January 2015 to December 2019 for 5 years. According to whether the pancreatic duct stent was indwelled during the operation, they were divided into pancreatic duct stent group (147 cases) and non-indwelling pancreatic duct stent group (192 cases). The incidence of acute pancreatitis after endoscopic retrograde cholangiopancreatography was compared between the two groups according to COTTON criteria. Independent sample t test, Pearson Chi-square test (χ2) and Fisher's exact test were used to compare groups' differences. There were 2 cases of acute pancreatitis in the pancreatic duct stent group, all of which improved after 48 hours. There were 22 cases of acute pancreatitis in the non-indwelling pancreatic duct stent group, of which 20 cases improved within 48 hours, and the other 2 cases had severe pancreatitis, which improved and discharged after 30 days of treatment. There was significant difference in the incidence of acute pancreatitis between the pancreatic duct stenting group (1.4%) and the group without placement of pancreatic duct stents (11.5%) (χ²=12.905,P<0.001). In conclusion, Pancreatic duct stent may be an effective method to prevent PEP.
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Affiliation(s)
- Q Z Zhou
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Diseases, Faculty of Gastroenterology of Capital Medical University, Beijing Key Laboratory for Precancerous Lesion of Digestive Diseases, Beijing 100050, China
| | - T Y Liu
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Diseases, Faculty of Gastroenterology of Capital Medical University, Beijing Key Laboratory for Precancerous Lesion of Digestive Diseases, Beijing 100050, China
| | - Y Q Wei
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Diseases, Faculty of Gastroenterology of Capital Medical University, Beijing Key Laboratory for Precancerous Lesion of Digestive Diseases, Beijing 100050, China
| | - N N Dong
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Diseases, Faculty of Gastroenterology of Capital Medical University, Beijing Key Laboratory for Precancerous Lesion of Digestive Diseases, Beijing 100050, China
| | - J F Guo
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Diseases, Faculty of Gastroenterology of Capital Medical University, Beijing Key Laboratory for Precancerous Lesion of Digestive Diseases, Beijing 100050, China
| | - P Li
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Diseases, Faculty of Gastroenterology of Capital Medical University, Beijing Key Laboratory for Precancerous Lesion of Digestive Diseases, Beijing 100050, China
| | - M Ji
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Diseases, Faculty of Gastroenterology of Capital Medical University, Beijing Key Laboratory for Precancerous Lesion of Digestive Diseases, Beijing 100050, China
| | - Y L Niu
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Diseases, Faculty of Gastroenterology of Capital Medical University, Beijing Key Laboratory for Precancerous Lesion of Digestive Diseases, Beijing 100050, China
| | - Y J Wang
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Diseases, Faculty of Gastroenterology of Capital Medical University, Beijing Key Laboratory for Precancerous Lesion of Digestive Diseases, Beijing 100050, China
| | - S T Zhang
- Department of Gastroenterology, Beijing Friendship Hospital, Capital Medical University, National Clinical Research Center for Digestive Diseases, Faculty of Gastroenterology of Capital Medical University, Beijing Key Laboratory for Precancerous Lesion of Digestive Diseases, Beijing 100050, China
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Xie C, Ma AJ, Xie J, Jiang B, Fang K, Wei YQ, Dong Z. [Current status of regular exercise and influencing factors in 18-64 year old labor force population in Beijing]. Zhonghua Liu Xing Bing Xue Za Zhi 2022; 43:373-379. [PMID: 35345293 DOI: 10.3760/cma.j.cn112338-20210727-00589] [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: 06/14/2023]
Abstract
Objective: To understand the regular exercise status and influencing factors in 18-64 year-old labor force population in Beijing, and provide evidences for behavioral intervention. Methods: Data were collected from Beijing Adult Non-communicable and Chronic Diseases and Risk Factors Surveillance Program from August to December, 2017. The stratified cluster sampling method was used to select 13 240 survey subjects throughout the city. The valid sample size included in this study were 11 604 persons aged 18 to 64 years. Questionnaire was used to collection the information about basic demographic characteristics, chronic disease history and physical activity prevalence of the study subjects. The body height and weight were measured by standard methods. Fasting venous blood samples were collected for the detection of fasting blood glucose, blood lipids and other biochemical indicators. Software SPSS 20.0 was used fort complex sampling sample weighting and data analysis. Results: The proportions of the study subjects who did regular exercise and never had leisure-time activity in 18-64 year-old labor force population in Beijing were 23.74% (95%CI: 21.51%-26.12%) and 64.34% (95%CI: 61.66%-66.94%) respectively; The average daily physical activity time was 23.44 min (95%CI: 21.16-25.71), and the total daily sedentary behavior time was 6.96 hours (95%CI: 6.80-7.13). With the increase of age, the proportions of the study subjects who did regular exercise and never had leisure-time activity increased (P=0.006, P<0.001). With the increase of educational level, the proportion of those who did regular exercise increased (P<0.001), and the proportion of those who never had leisure-time activity decreased (P<0.001); the higher the level of physical activity, the higher the regular exercise proportion (P<0.001); the proportions of employed people who did regular exercise was lower than those in unemployed people (P<0.001); the proportions of women never had leisure-time activity was higher than those in men (P=0.024). The results of multivariate analysis showed that older age and higher education level were positive factors for regular exercise (35- years old: OR=0.653, 95%CI: 0.530-0.804, P<0.001; 50-64 years old: OR=0.695, 95%CI: 0.560-0.864, P=0.001; high school/technical secondary school/technical School: OR=0.679, 95%CI: 0.593-0.777, P<0.001; college graduation: OR=0.478, 95%CI: 0.387-0.590, P<0.001; bachelor degree and above: OR=0.435, 95%CI: 0.347-0.546, P<0.001), while employment (OR=1.631, 95%CI: 1.330-2.000, P<0.001) and married/cohabitation (OR=1.340, 95%CI: 1.093-1.644, P=0.038) were negative factors for regular exercise. Conclusions: The rate of regular exercise in 18-64 year-old labor force population in Beijing needs to be improved. Older age and high educational level were positive factors for regular exercise, while being married and employed were negative factors for it.
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Affiliation(s)
- C Xie
- Beijing Center for Disease Prevention and Control, Beijing 100013, China
| | - A J Ma
- Beijing Center for Disease Prevention and Control, Beijing 100013, China
| | - J Xie
- Beijing Center for Disease Prevention and Control, Beijing 100013, China
| | - B Jiang
- Beijing Center for Disease Prevention and Control, Beijing 100013, China
| | - K Fang
- Beijing Center for Disease Prevention and Control, Beijing 100013, China
| | - Y Q Wei
- Beijing Center for Disease Prevention and Control, Beijing 100013, China
| | - Z Dong
- Beijing Center for Disease Prevention and Control, Beijing 100013, China
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10
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Fang K, Ma AJ, Dong J, Jiang B, Xie J, Wei YQ, Xie C, Qi K, Zhao Y, Dong Z. [Investigation on knowledge, attitude and behavior of salt reduction in adults of Beijing in 2017]. Zhonghua Yu Fang Yi Xue Za Zhi 2022; 56:340-345. [PMID: 35381656 DOI: 10.3760/cma.j.cn112150-20210422-00398] [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: 06/14/2023]
Abstract
Objective: To explore the knowledge, attitude and behavior of salt reduction in adults of Beijing in 2017. Methods: Based on the monitoring data of chronic diseases and corresponding risk factors in adults of Beijing in 2017, the indicators of salt reduction knowledge, attitude and behavior of 13 240 participants aged 18-79 years old were analyzed. The awareness rate, attitude support rate and behavior rate were calculated by complex weighting method, and compared among different age groups, genders, residential areas, and history of hypertension. The proportion of people taking various salt reduction measures to the total number of people was compared. Results: The awareness rate of recommended daily salt intake, the awareness of hypertension caused or aggravated by more salt intake, the attitude support rate and behavior rate of adults were 31.77%, 88.56%, 90.27% and 53.86%, respectively. After weighted adjustment, the awareness rate of recommended daily salt intake was 31.08%, which increased with age (χ2trend=431.56, P<0.001) and education level (χ2trend=95.44, P<0.001). The awareness rate of women was higher than that of men (χ²=118.89, P<0.001), and the awareness rate of population in urban areas was higher than that of population in suburban areas (χ²=34.09, P=0.001). The awareness rate of hypertension caused or aggravated by eating more salt was 86.73%. The support rate of salt reduction attitude was 90.45%. The rate of salt-reducing behavior was 54.05%. Among different salt reduction measures, reducing salt when cooking was the most common measure (52.41%), while the least common one (35.22%) was using low sodium salt. Logistic regression model analysis showed that the gender, age, education level, self-reported history of hypertension, awareness of salt recommendation, awareness of hypertension caused or aggravated by eating more salt, and salt reduction attitude were significantly associated with salt reduction behavior. Conclusion: In 2017, adults in Beijing have a basic understanding of the impact of high-salt diet on health and support salt reduction, but the rate of salt reduction behavior is still relatively low. There are obvious gender and age differences, and the salt reduction measure is simple. Targeted measures should be taken to promote the formation of salt reduction behavior.
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Affiliation(s)
- K Fang
- Institue for Non-communicable Chronic Disease Prevention and Control, Beijing Center for Disease Prevention and Control / Beijing Research Center for Preventive Medicine, Beijing 100013, China
| | - A J Ma
- Institue for Non-communicable Chronic Disease Prevention and Control, Beijing Center for Disease Prevention and Control / Beijing Research Center for Preventive Medicine, Beijing 100013, China
| | - J Dong
- Institue for Non-communicable Chronic Disease Prevention and Control, Beijing Center for Disease Prevention and Control / Beijing Research Center for Preventive Medicine, Beijing 100013, China
| | - B Jiang
- Institue for Non-communicable Chronic Disease Prevention and Control, Beijing Center for Disease Prevention and Control / Beijing Research Center for Preventive Medicine, Beijing 100013, China
| | - J Xie
- Institue for Non-communicable Chronic Disease Prevention and Control, Beijing Center for Disease Prevention and Control / Beijing Research Center for Preventive Medicine, Beijing 100013, China
| | - Y Q Wei
- Institue for Non-communicable Chronic Disease Prevention and Control, Beijing Center for Disease Prevention and Control / Beijing Research Center for Preventive Medicine, Beijing 100013, China
| | - C Xie
- Institue for Non-communicable Chronic Disease Prevention and Control, Beijing Center for Disease Prevention and Control / Beijing Research Center for Preventive Medicine, Beijing 100013, China
| | - K Qi
- Institue for Non-communicable Chronic Disease Prevention and Control, Beijing Center for Disease Prevention and Control / Beijing Research Center for Preventive Medicine, Beijing 100013, China
| | - Y Zhao
- Institue for Non-communicable Chronic Disease Prevention and Control, Beijing Center for Disease Prevention and Control / Beijing Research Center for Preventive Medicine, Beijing 100013, China
| | - Z Dong
- Institue for Non-communicable Chronic Disease Prevention and Control, Beijing Center for Disease Prevention and Control / Beijing Research Center for Preventive Medicine, Beijing 100013, China
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11
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Wei YQ, Ma AJ, Fang K, Dong J, Xie J, Xie C, Qi K, Dong Z. [Analysis of the current status and related factors of oral nutritional supplements intake among 18-79 years old in Beijing in 2017]. Zhonghua Liu Xing Bing Xue Za Zhi 2022; 43:227-233. [PMID: 35184489 DOI: 10.3760/cma.j.cn112338-20210819-00661] [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: 06/14/2023]
Abstract
Objective: To understand the current status of taking nutrient supplements for residents aged 18 to 79 years old in Beijing and its related factors. Methods: Data were gathered from the 2017 Beijing Non-communicable and Chronic Disease Surveillance Program. Multiple classified cluster sampling method was used, and participants aged 18-79 were sampled from 16 districts. The questionnaire included chronic diseases and related risk factors, health knowledge, and oral nutritional supplements within 12 months. Multivariate logistic regression models were established to analyze associated factors that affect the intake of nutrient supplements. Results: The weighted prevalence of supplements use was 13.1% among 12 696 subjects within the past 12 months. The proportions of multivitamins (4.7%), B vitamins (4.5%), and folic acid (3.2%) were higher. The prevalence of supplement use of young people (18-39 years old) and the elderly (60-79 years old) was higher than middle-aged people (40-59 years old) (χ2=54.09, P<0.001). Except for the age group of 70-79 years old, the consumption rate of women was significantly higher than that of men (P<0.05). After adjusting age and sex, among patients with hypertension, diabetes, or dyslipidemia, the control rates of blood pressure, glucose and lipids of patients who take nutrient supplements were higher than those who do not (P<0.05). And participants who took nutrient supplements had a more heightened awareness rate of health knowledge, such as the hazards of smoking and second-hand smoke, and recommended amount of salt per day (P<0.001). The multi-factor logistic analysis found that nutrient supplement-related factors include women, old age, higher education level, living in urban, insufficient physical activity, sleeping problems, active physical examination, blood pressure control among patients, and health knowledge (P<0.05). Conclusions: The factors of nutrient supplements use were related to sex, age, education level, health status, and health literacy. We should pay attention to key populations and guide them to establish the correct concept of taking nutrient supplements.
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Affiliation(s)
- Y Q Wei
- Beijing Center for Disease Prevention and Control/Beijing Research Center for Preventive Medicine, Beijing 100013, China
| | - A J Ma
- Beijing Center for Disease Prevention and Control/Beijing Research Center for Preventive Medicine, Beijing 100013, China
| | - K Fang
- Beijing Center for Disease Prevention and Control/Beijing Research Center for Preventive Medicine, Beijing 100013, China
| | - J Dong
- Beijing Center for Disease Prevention and Control/Beijing Research Center for Preventive Medicine, Beijing 100013, China
| | - J Xie
- Beijing Center for Disease Prevention and Control/Beijing Research Center for Preventive Medicine, Beijing 100013, China
| | - C Xie
- Beijing Center for Disease Prevention and Control/Beijing Research Center for Preventive Medicine, Beijing 100013, China
| | - K Qi
- Beijing Center for Disease Prevention and Control/Beijing Research Center for Preventive Medicine, Beijing 100013, China
| | - Z Dong
- Beijing Center for Disease Prevention and Control/Beijing Research Center for Preventive Medicine, Beijing 100013, China
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12
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Lyu X, Zhang WY, Zhang JX, Wei YQ, Guo XL, Cui SH, Yan JY, Zhang XY, Qiao C, Zhou R, Gu WR, Chen XX, Yang Z, Li XT, Lin JH. [Comparative analysis of high risk factors between early-onset pre-eclampsia and late-onset pre-eclampsia]. Zhonghua Fu Chan Ke Za Zhi 2021; 56:760-766. [PMID: 34823288 DOI: 10.3760/cma.j.cn112141-20210330-00164] [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 explore the difference of high-risk factors between early-onset and late-onset pre-eclampsia, and to further understand high-risk factors of pre-eclampsia. Methods: Clinical data of pre-eclampsia pregnant women in 160 medical institutions in China in 2018 were retrospectively analyzed, including 8 031 cases of early-onset pre-eclampsia and 12 969 cases of late-onset pre-eclampsia. The proportion of high-risk factors, different body mass index (BMI) and age stratification between early-onset group and late-onset group were compared. Results: (1) Univariate analysis of high-risk factors: the proportions of high-risk factors in early-onset group and late-onset group were compared, and the differences were statistically significant (all P<0.05). Among them, the proportions of primipara and multiple pregnancy in early-onset group were lower than those in late-onset group, while the proportions of pregnant women with advanced age, irregular antenatal examination, obesity, family history of hypertension, pre-eclampsia, diabetes, kidney diseases, immune system diseases and assisted reproductive technology were higher than those in late-onset group. (2) Hierarchical analysis of BMI: the proportion of pregnant women with BMI≥24 kg/m2 in early-onset group [48.2% (2 828/5 872) vs 45.5% (4 177/9 181), respectively; P=0.001] and the proportion of pregnant women with BMI ≥28 kg/m2 in early-onset group [19.5% (1 143/5 872) vs 18.0% (1 656/9 181), respectively; P=0.028] were significantly higher than those in late-onset group. (3) Age stratification analysis: the proportion of pregnant women aged 35-39 years in the early-onset group [21.8% (1 748/8 023) vs 17.5% (2 110/12 068), respectively; P<0.01], the proportion of pregnant women 40-44 years old [6.8% (544/8 023) vs 5.4% (648/12 068), respectively; P<0.01], and the proportion of pregnant women ≥45 years old [0.7% (58/8 023) vs 0.5% (57/12 068), respectively; P=0.021] were significantly higher than those in the late-onset group. (4) Multivariate analysis: advanced age (≥35 years old), multiple pregnancy, irregular antenatal examination or transfer from other hospitals, family history of hypertension (including paternal, maternal and parental lines), previous history of pre-eclampsia, kidney diseases, immune system diseases (systemic lupus erythematosus, antiphospholipid antibody syndrome) and assisted reproductive technology pregnancy were the risk factors affecting the severity of pre-eclampsia (all P<0.05). Conclusion: Pregnant women with high risk factors such as age ≥35 years old, BMI ≥24 kg/m2 before pregnancy, family history of hypertension, history of pre-eclampsia, chronic kidney diseases, immune diseases (mainly including systemic lupus erythematosus and antiphospholipid syndrome) and assisted reproductive technology are more likely to have early-onset pre-eclampsia.
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Affiliation(s)
- X Lyu
- Department of Obstetrics and Gynecology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
| | - W Y Zhang
- Department of Obstetrics, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing 100026, China
| | - J X Zhang
- Department of Obstetrics and Gynecology, the Fourth Hospital of Shijiazhuang, Shijiazhuang 050035, China
| | - Y Q Wei
- Department of Obstetrics and Gynecology, Affiliated Hospital of Jining Medical University, Jining 272007, China
| | - X L Guo
- Department of Obstetrics, Changzhi Maternity and Child Health Care Hospital of Shanxi Province, Changzhi 046000, China
| | - S H Cui
- Department of Obstetrics and Gynecology, the Third Affiliated Hospital of Zhengzhou University, Zhengzhou 450015, China
| | - J Y Yan
- Department of Obstetrics, Fujian Maternity and Child Health Care Hospital, Fuzhou 350005, China
| | - X Y Zhang
- Department of Obstetrics and Gynecology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - C Qiao
- Department of Obstetrics and Gynecology, Shengjing Hospital of China Medical University, Shenyang 117004, China
| | - R Zhou
- Department of Obstetrics, West China Second University Hospital, Sichuan University, Chengdu 610044, China
| | - W R Gu
- Department of Obstetrics, Obstetrics and Gynecology Hospital of Fudan University, Shanghai 200082, China
| | - X X Chen
- Department of Obstetrics, Anhui Province Maternity and Child Health Hospital, Hefei 230001, China
| | - Z Yang
- Department of Obstetrics and Gynecology, Peking University Third Hospital, Beijing 100191, China
| | - X T Li
- Department of Obstetrics, Obstetrics and Gynecology Hospital of Fudan University, Shanghai 200082, China
| | - J H Lin
- Department of Obstetrics and Gynecology, Renji Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200127, China
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Liu YB, Xu BC, Chen YT, Yuan X, Liu JY, Liu T, Du GZ, Jiang W, Yang Y, Zhu Y, Chen LJ, Ding BS, Wei YQ, Yang L. Directed evolution of AAV accounting for long-term and enhanced transduction of cardiovascular endothelial cells in vivo. Mol Ther Methods Clin Dev 2021; 22:148-161. [PMID: 34485601 PMCID: PMC8397840 DOI: 10.1016/j.omtm.2021.05.015] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 11/09/2020] [Accepted: 05/28/2021] [Indexed: 02/05/2023]
Abstract
Cardiac endothelial cells (ECs) are important targets for cardiovascular gene therapy. However, the approach of stably transducing ECs in vivo using different vectors, including adeno-associated virus (AAV), remains unexamined. Regarding this unmet need, two AAV libraries from DNA shuffling and random peptide display were simultaneously screened in a transgenic mouse model. Cardiac ECs were isolated by cell sorting for salvage of EC-targeting AAV. Two AAV variants, i.e., EC71 and EC73, enriched in cardiac EC, were further characterized for their tissue tropism. Both of them demonstrated remarkably enhanced transduction of cardiac ECs and reduced infection of liver ECs in comparison to natural AAVs after intravenous injection. Significantly, persistent transgene expression was maintained in mouse cardiac ECs in vivo for at least 4 months. The EC71 vector was selected for delivery of the endothelial nitric oxide synthase (eNOS) gene into cardiac ECs in a mouse model of myocardial infarction. Enhanced eNOS activity was observed in the mouse heart and lung, which was correlated with partially improved cardiac function. Taken together, two AAV capsids were evolved with more efficient transduction in cardiovascular endothelium in vivo, but their endothelial tropism might need to be further optimized for practical application to cardiac gene therapy.
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Affiliation(s)
- Y B Liu
- Department of Cardiology and Laboratory of Gene Therapy for Heart Diseases, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy, Chengdu, Sichuan, China
| | - B C Xu
- Laboratory of Aging Research and Cancer Drug Target, State Key Laboratory of Biotherapy and Cancer Center, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Y T Chen
- Key Laboratory of Birth Defects and Related Diseases of Women and Children of MOE, State Key Laboratory of Biotherapy, West China Second University Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy, Chengdu, Sichuan, China
| | - X Yuan
- Laboratory of Aging Research and Cancer Drug Target, State Key Laboratory of Biotherapy and Cancer Center, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - J Y Liu
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital of Sichuan University, Chengdu, China
| | - T Liu
- Department of Anesthesiology, Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - G Z Du
- Department of Anesthesiology, Translational Neuroscience Center, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - W Jiang
- Molecular Medicine Research Center, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - Y Yang
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital, Sichuan University and Collaborative Innovation Center, Chengdu, Sichuan, China
| | - Y Zhu
- Department of Cardiology, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - L J Chen
- State Key Laboratory of Biotherapy and Cancer Center, West China Hospital of Sichuan University, Chengdu, China
| | - B S Ding
- Key Laboratory of Birth Defects and Related Diseases of Women and Children of MOE, State Key Laboratory of Biotherapy, West China Second University Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy, Chengdu, Sichuan, China
| | - Y Q Wei
- Laboratory of Aging Research and Cancer Drug Target, State Key Laboratory of Biotherapy and Cancer Center, National Clinical Research Center for Geriatrics, West China Hospital, Sichuan University, Chengdu, Sichuan, China
| | - L Yang
- Department of Cardiology and Laboratory of Gene Therapy for Heart Diseases, State Key Laboratory of Biotherapy, West China Hospital, Sichuan University and Collaborative Innovation Center for Biotherapy, Chengdu, Sichuan, China
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Yang JP, Zhao YF, Cao YD, Yang MY, Wei YQ, Liu JY. [A study on the correlation between medical staff engagement, perceived organizational support and turnover intention]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2021; 38:905-907. [PMID: 33406549 DOI: 10.3760/cma.j.cn121094-20190826-00355] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the relationship between medical staff's engagement, perceived organizational support and turnover intention. Methods: In May 2019, 600 medical and nursing staff from a tertiary hospital in Tianjin were selected by random sampling method. The questionnaire survey was conducted by using Gallup Q12 questionnaire, perceived organizational support scale and turnover intention scale. The correlation between engagement, organizational support and turnover intention was analyzed by person correlation analysis and regression analysis, and multivariate stepwise linear analysis was used for multiple factor analysis Return. Results: the total average scores of engagement, sense of organizational support and turnover intention were (2.18±0.56) , (3.48±0.72) and (2.71±0.67) respectively. There was a positive correlation between engagement and perceived organizational support (r=0.674, P<0.01) , and negatively correlated with turnover intention (R=-0.416, -0.487, P<0.05) . The factors of turnover intention were engagement and organizational support (F=54.673, 81.558, P<0.01) . Perceived organizational support partially mediated the relationship between engagement and turnover intention (P<0.01) . Conclusion: The engagement and organizational support of medical staff are related to turnover intention.
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Affiliation(s)
- J P Yang
- First Teaching Hospital of Tianjin University of Traditional Chinese Medicine, National Clinical Research Center for Chinese Medicine Acupuncture and Moxibustion, Tianjin 300381, China
| | - Y F Zhao
- College of nursing, Tianjin University of Traditional Chinese Medicine, Tianjin 300192, China
| | - Y D Cao
- College of nursing, Tianjin University of Traditional Chinese Medicine, Tianjin 300192, China
| | - M Y Yang
- College of nursing, Tianjin University of Traditional Chinese Medicine, Tianjin 300192, China
| | - Y Q Wei
- College of nursing, Tianjin University of Traditional Chinese Medicine, Tianjin 300192, China
| | - J Y Liu
- College of nursing, Tianjin University of Traditional Chinese Medicine, Tianjin 300192, China
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Ma AJ, Dong J, Wei YQ, Fang K, Xie C, Jiang B, Dong Z. [Comprehensive control rate and related factros of diabetes mellitus in Beijing]. Zhonghua Yu Fang Yi Xue Za Zhi 2020; 54:1283-1288. [PMID: 33147930 DOI: 10.3760/cma.j.cn112150-20200616-00887] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the comprehensive control situation and related factors of diabetes mellitus. Methods: From August to December of 2017, 13 259 residents aged 18 to 79 years old were randomly selected as the subjects by stratified multi-stage cluster sampling method. Questionnaire, physical examination and laboratory tests were conducted. The effective sample size was 13 240. A total of 1 592 diabetes patients were found. In this study, 917 diabetes patients who had been diagnosed before the investigation were selected as subjects. The comprehensive control of diabetes patients was analyzed. The situation of diabetes patients with hypertension, dyslipidemia, overweight and obesity, coronary heart diseases was analyzed. Logistic regression analysis of complex sampling was used to analyze the related factors of diabetes comprehensive control. Results: The average age of 917 patients with diabetes was (58.5±0.7) years old. The proportion of people who participated in diabetes follow-up management was 29.0%. There were 89.5% diabetes patients with one or more chronic diseases. The comprehensive control rate of diabetes mellitus was 2.0%, men and women were 1.8% and 2.3%, respectively (P>0.05). The rate of comprehensive control among those diabetes patients with chronic diseases was 0.4%, lower than that of those without chronic diseases (15.6%, P<0.05). The comprehensive control rate of people who participated in diabetes follow-up management was 1.4%. The control rate of blood glucose, blood pressure, blood lipid and weight of diabetes mellitus was 30.9%, 30.2%, 17.4% and 27.7%, respectively. Logistic regression analysis of complex sampling showed that excessive intake of red meat, with chronic diseases and qualified core knowledge were all related with comprehensive control of diabetes mellitus, OR value was 31.41, 39.98 and 0.29, P<0.05. Conclusion: The comprehensive control rate of diabetes mellitus was low. Excessive intake of red meat, with chronic diseases and qualified core knowledge were all related with comprehensive control of diabetes mellitus.
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Affiliation(s)
- A J Ma
- Beijing Center for Disease Prevention and Control/Beijing Research Center for Preventive Medicine, Beijing 100013, China
| | - J Dong
- Beijing Center for Disease Prevention and Control/Beijing Research Center for Preventive Medicine, Beijing 100013, China
| | - Y Q Wei
- Beijing Center for Disease Prevention and Control/Beijing Research Center for Preventive Medicine, Beijing 100013, China
| | - K Fang
- Beijing Center for Disease Prevention and Control/Beijing Research Center for Preventive Medicine, Beijing 100013, China
| | - C Xie
- Beijing Center for Disease Prevention and Control/Beijing Research Center for Preventive Medicine, Beijing 100013, China
| | - B Jiang
- Beijing Center for Disease Prevention and Control/Beijing Research Center for Preventive Medicine, Beijing 100013, China
| | - Z Dong
- Beijing Center for Disease Prevention and Control/Beijing Research Center for Preventive Medicine, Beijing 100013, China
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Wei YQ, Ma AJ, Fang K, Dong J, Xie C, Xie J, Jiang B, Zhao Y, Qi K, Dong Z. [Association between sleep and serum hemoglobin A1c in nondiabetic population in Beijing]. Zhonghua Liu Xing Bing Xue Za Zhi 2020; 41:1256-1260. [PMID: 32867432 DOI: 10.3760/cma.j.cn112338-20191224-00911] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To understand the status quo of sleep and its associations with serum hemoglobin A1c (HbA1c) among nondiabetic people of 18-79 years old in Beijing. Methods: Data was gathered from the 2017 Beijing Non-communicable and Chronic Disease Surveillance Program. Multiple classified clusters sampling method was used while the 18-79 years old were sampled from the 16 districts of Beijing. Questionnaires would include information on demographic characteristics, chronic diseases and related risk factors, sleep duration and related problems (snore/asphyxia, difficult to get to sleep, waking often during the night, waking up early or taking sleeping pills) within the last 30 days. Complex sampling logistic regression models were established to analyze the association between sleep-related problems and serum HbA1c. Results: A total of 11 608 non-diabetic participants were involved in this study, with average age, reported sleep duration and median of serum HbA1c level as (43.36±15.27) years old, (7.49±1.29) h/d and 5.30%, respectively. 47.38% of them reported having sleep problems within the last 30 days. With the increasing time of sleep, serum HbA1c level was fluctuating significantly (F=413.06, P<0.01). Significant differences appeared in serum HbA1c levels among different age groups (t=358.3, P<0.01). Among participants with several kinds of sleep problems, the serum HbA1c levels were significantly higher than those without, through the single factor analysis (U=15.11, P<0.01). After adjusting for potential confounding factors, the combination of one sleep-related problem (OR=1.21, 95%CI: 1.03-1.41) and snore/asphyxia were associated with higher serum HbA1c levels (HbA1c≥5.7%) (OR=1.37, 95%CI: 1.16-1.61). People under 60 years of age were with higher risk of having higher serum HbA1c levels. Conclusion: Duration and sleep-related problems might affect the serum HbA1c levels, especially among those younger than 60 years of age.
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Affiliation(s)
- Y Q Wei
- Beijing Center for Disease Prevention and Control, Beijing Research Center for Preventive Medicine, Beijing 100013, China
| | - A J Ma
- Beijing Center for Disease Prevention and Control, Beijing Research Center for Preventive Medicine, Beijing 100013, China
| | - K Fang
- Beijing Center for Disease Prevention and Control, Beijing Research Center for Preventive Medicine, Beijing 100013, China
| | - J Dong
- Beijing Center for Disease Prevention and Control, Beijing Research Center for Preventive Medicine, Beijing 100013, China
| | - C Xie
- Beijing Center for Disease Prevention and Control, Beijing Research Center for Preventive Medicine, Beijing 100013, China
| | - J Xie
- Beijing Center for Disease Prevention and Control, Beijing Research Center for Preventive Medicine, Beijing 100013, China
| | - B Jiang
- Beijing Center for Disease Prevention and Control, Beijing Research Center for Preventive Medicine, Beijing 100013, China
| | - Y Zhao
- Beijing Center for Disease Prevention and Control, Beijing Research Center for Preventive Medicine, Beijing 100013, China
| | - K Qi
- Beijing Center for Disease Prevention and Control, Beijing Research Center for Preventive Medicine, Beijing 100013, China
| | - Z Dong
- Beijing Center for Disease Prevention and Control, Beijing Research Center for Preventive Medicine, Beijing 100013, China
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Jiang B, Ma AJ, Xie C, Wei YQ, Fang K, Dong J, Xie J, Qi K, Zhou Y, Zhao Y, Zhang SL, Dong Z. [Study on intention of smoking concession, awareness of smoking hazards and impact on smoking status in residents aged 18-65 years in Beijing]. Zhonghua Liu Xing Bing Xue Za Zhi 2020; 41:1058-1062. [PMID: 32741170 DOI: 10.3760/cma.j.cn112338-20190812-00590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To understand the awareness of smoking hazards and intention of smoking concession in residents aged 18-65 years in Beijing, and provide scientific evidence for the development and improvement of tobacco control policies and measures. Methods: Data were collected from the 2017 Beijing Non-communicable and Chronic Disease surveillance. A multi-stage stratified cluster sampling method was used to take samples from 165 communities in 16 districts of Beijing. Logistic regression was used to analyze the influencing factors. Results: Among 11 594 participants, 49.93% had no intention of smoking concession. The percentage of refusing smoking concession was higher in men (50.39%) than in women (43.01%), the difference was significant ( χ(2)=14.211, P=0.002), and higher in suburban residents (56.78%) than in urban residents (45.30%), the difference was significant ( χ(2)=51.977, P<0.001). For the smoking cessation motivation, "illness" was the reason for more former smokers (29.88%) compared with current smokers (11.50%), the difference was significant ( χ(2)=85.865, P<0.001). The awareness rates of smoking hazards was higher in women (34.97%) than in men (32.63%), the difference was significant (Z=5.612, P<0.001), higher in suburban residents (35.44%) than in urban residents (33.03%), the difference was significant (Z=-3.734, P<0.001), and higher in never smokers (35.15%) than in smokers (30.06%), the difference was significant ( χ(2)=62.277, P=0.005). Multiple logistic regression analysis results showed people with general awareness (OR=0.61, 95%CI: 0.39-0.94) and poor awareness (OR=0.67, 95%CI: 0.50-0.90) of smoking hazards were less likely to quit smoking and people with general awareness (OR=0.64, 95%CI: 0.53-0.76) and poor awareness (OR=0.87, 95%CI: 0.78-0.98) of smoking hazards were more likely to smoke. Conclusions: Smokers aged 18-65 in Beijing had low willingness for smoking cessation. Health problem was main consideration for smoking cessation. Never-smokers had better awareness of smoking hazards than smokers, and the awareness of smoking hazards was an influencing factor of smoking status.
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Affiliation(s)
- B Jiang
- Beijing Municipal Center for Diseases Prevention and Control/Beijing Center for Preventive Medicine Research, Beijing 100020, China
| | - A J Ma
- Beijing Municipal Center for Diseases Prevention and Control/Beijing Center for Preventive Medicine Research, Beijing 100020, China
| | - C Xie
- Beijing Municipal Center for Diseases Prevention and Control/Beijing Center for Preventive Medicine Research, Beijing 100020, China
| | - Y Q Wei
- Beijing Municipal Center for Diseases Prevention and Control/Beijing Center for Preventive Medicine Research, Beijing 100020, China
| | - K Fang
- Beijing Municipal Center for Diseases Prevention and Control/Beijing Center for Preventive Medicine Research, Beijing 100020, China
| | - J Dong
- Beijing Municipal Center for Diseases Prevention and Control/Beijing Center for Preventive Medicine Research, Beijing 100020, China
| | - J Xie
- Beijing Municipal Center for Diseases Prevention and Control/Beijing Center for Preventive Medicine Research, Beijing 100020, China
| | - K Qi
- Beijing Municipal Center for Diseases Prevention and Control/Beijing Center for Preventive Medicine Research, Beijing 100020, China
| | - Y Zhou
- Beijing Municipal Center for Diseases Prevention and Control/Beijing Center for Preventive Medicine Research, Beijing 100020, China
| | - Y Zhao
- Beijing Municipal Center for Diseases Prevention and Control/Beijing Center for Preventive Medicine Research, Beijing 100020, China
| | - S L Zhang
- Beijing Municipal Center for Diseases Prevention and Control/Beijing Center for Preventive Medicine Research, Beijing 100020, China
| | - Z Dong
- Beijing Municipal Center for Diseases Prevention and Control/Beijing Center for Preventive Medicine Research, Beijing 100020, China
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18
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Ma AJ, Fang K, Wei YQ, Jiang B, Dong J, Xie C, Dong Z. [Study on the relationship between sleep-related problems and dyslipidemia among adults in Beijing]. Zhonghua Liu Xing Bing Xue Za Zhi 2020; 41:1250-1255. [PMID: 32867431 DOI: 10.3760/cma.j.cn112338-20191224-00909] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the status quo of sleelated problems and relationship with dyslipidemia among adults in Beijing. Methods: From August to December 2017, 13 188 residents aged 18-79 years old were randomly selected as the subjects of this study, by stratified multi-stage cluster sampling method. Questionnaire, physical examination and laboratory testing were used in this study. The questionnaire included demographic characteristics and status quo of sleep. Height and weight were measured, with fasting venous blood collected to test the levels of TC, HDL-C, LDL-C and TG. Results: In Beijing, 52.1% of the adults involved in this study were having sleep-related problems which appeared higher in patients with dyslipidemia (55.1%) than those without (50.7%). Rates of sleep-related problems as snoring, difficult to get into sleep, waking at night, waking early and taking sleeping pills were 30.1%, 18.8%, 24.6%, 20.1% and 3.0%, respectively. The prevalence rates of high TC, high TG and high LDL-C were 7.5%, 23.5% and 6.6%, respectively among subjects with snoring and as, 5.7%, 15.5% and 4.9%, respectively among those without. The average level of TC of people easy to wake at night was 4.74 mmol/L, higher than that of those without (4.66 mmol/L). The prevalence of high TC among those waking at night was 7.5%, higher than that of those without (5.8%). After controlling potential confounding factors as age, sex, smoking, overweight and obesity, snoring was significantly positively correlated to the levels of TC, TG and LDL-C (P<0.05) and presenting as risk factor for dyslipidemia, with OR=1.248 (P<0.05). Conclusion: Sleep-related problems appeared serious, with snoring and waking at night the main ones among adults in Beijing. Snoring was significantly positively correlated with the levels of TC, TG and LDL-C and served an independent risk factor for dyslipidemia.
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Affiliation(s)
- A J Ma
- Beijing Center for Disease Prevention and Control, Beijing Research Center for Preventive Medicine, Beijing 100013, China
| | - K Fang
- Beijing Center for Disease Prevention and Control, Beijing Research Center for Preventive Medicine, Beijing 100013, China
| | - Y Q Wei
- Beijing Center for Disease Prevention and Control, Beijing Research Center for Preventive Medicine, Beijing 100013, China
| | - B Jiang
- Beijing Center for Disease Prevention and Control, Beijing Research Center for Preventive Medicine, Beijing 100013, China
| | - J Dong
- Beijing Center for Disease Prevention and Control, Beijing Research Center for Preventive Medicine, Beijing 100013, China
| | - C Xie
- Beijing Center for Disease Prevention and Control, Beijing Research Center for Preventive Medicine, Beijing 100013, China
| | - Z Dong
- Beijing Center for Disease Prevention and Control, Beijing Research Center for Preventive Medicine, Beijing 100013, China
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Zhou XL, Ouyang Z, Zhang XL, Wei YQ, Tang SX, Tan ZL, Wang CJ, He ZX, Teklebrhan T, Han XF. Effects of a high-dose Saccharomyces cerevisiae inoculum alone or in combination with Lactobacillus plantarum on the nutritional composition and fermentation traits of maize silage. Anim Prod Sci 2020. [DOI: 10.1071/an18701] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Context
The inoculation of silage with Saccharomyces cerevisiae to deliver viable yeast cells is a novel concept.
Aims
The effects of a high-dose S. cerevisiae inoculum alone or combined with Lactobacillus plantarum on the nutritional composition, fermentation traits and aerobic stability of maize silage were studied after 30, 60 and 90 days of storage.
Methods
Whole-crop maize (309.3 g dry matter (DM)/kg as fed) was subjected to one of three treatments: deionised water (untreated control); S. cerevisiae at an estimated concentration of 108 CFU/g fresh forage (S); or S. cerevisiae at an estimated concentration of 108 CFU/g and L. plantarum at an estimated concentration of 105 CFU/g of fresh forage (SL).
Key results
Compared with the control, the S and SL groups showed increases (P < 0.001) in average pH (3.98 in S and 4.01 in SL vs 3.65 in the control), crude protein (85 g/kg DM in S and 80 g/kg DM in SL vs 63 g/kg DM in the control) and ammonia nitrogen/total nitrogen (122.2 g/kg in S and 163.9 g/kg in SL vs 52.9 g/kg in the control) but a lower (P < 0.001) average concentration of water-soluble carbohydrate (0.9 g/kg DM in S and 0.7 g/kg DM in SL vs 2.3 g/kg DM in the control). The levels of neutral detergent fibre and acid detergent fibre were greater (P < 0.001) in S silage than in the control and SL silages, and the hemicellulose level was lower (P = 0.004) in the SL group than the control and S groups. Starch and aerobic stability were unaffected by treatment, and the average lactate and ethanol concentrations were higher (P < 0.001) in the S (53.7 g lactate/kg DM and 28.7 g ethanol/kg DM) and SL (56.9 g lactate/kg DM and 21.4 g ethanol/kg DM) groups than the control (40.1 g lactate/kg DM and 5.3 g ethanol/kg DM) over 90 days of ensiling.
Conclusions
Overall, a high-dose inoculum of S. cerevisiae alone or combined with L. plantarum affected the nutritional composition and fermentation traits of maize silage.
Implications
The inoculation of maize silage with a high dose of S. cerevisiae needs to be performed with caution.
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Luo X, Wei YQ, Hai L, Hu YC, Zhao ZJ, Ma WL, Ma LN, Liu XY, Ding XC. [A preliminary study of serum marker alpha-enolase in the diagnosis of hepatocellular carcinoma]. Zhonghua Gan Zang Bing Za Zhi 2019; 27:505-510. [PMID: 31357775 DOI: 10.3760/cma.j.issn.1007-3418.2019.07.006] [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 investigate the diagnostic value of serum α-enolase (ENO1) in the primary hepatocellular carcinoma. Methods: From May 2012 to March 2017, 163 cases with liver diseases who met the inclusion and exclusion criteria were admitted to the Infectious Diseases Department of the General Hospital of Ningxia Medical University. Among them, 28 cases were of chronic hepatitis B (CHB), 31 cases with liver cirrhosis (LC), 104 cases with hepatocellular carcinoma (HCC), and 18 healthy volunteers (NC). Patient data and serum samples were collected and liver disease related indicators were measured to detect ENO1 levels with enzyme-linked immunosorbent assay (ELISA). The measured indicators were expressed in median. Mann-Whitney U nonparametric test was used to analyze the differences between the data. A Spearman's correlation analysis was used for bivariate correlation analysis. The sensitivity and specificity of ENO1 and alpha-fetoprotein in the diagnosis of liver cancer were analyzed by ROC curve. Results: Serum level of ENO1 in CHB group, LC group and HCC group was significantly higher than normal group. Serum level of ENO1 in HCC group was higher than CHB group (P = 0.001) and LC group (P < 0.01). Area under the curve (AUC) for serum ENO1 and alpha-fetoprotein were 0.782 (cut-off value 75.96, P = 0.000 1) and 0.800 (cut-off value 27.02, P = 0.000 1), respectively. There was a positive correlation between ENO1 and AFP (P = 0.001). The combined detection had significantly improved the detection efficiency (AUC = 0.835). Serum ENO1 was statistically significant (P < 0.05) in HCC tumor size (AUC = 0.663), tumor metastasis (AUC = 0.681), TNM stage (AUC = 0.710, stage I vs. II), and Edmondson grade (AUC = 0.685) (P < 0.05) and the elevated levels of ENO1 had significantly reduced (P < 0.05) the survival time. Conclusion: ENO1 can be a new candidate marker for the diagnosis of early stage HCC and its progression.
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Affiliation(s)
- X Luo
- College of Clinical Medical, Ningxia Medical University, Yinchuan 750004, China; Department of Infectious Diseases, General Hospital of Ningxia Medical University, Yinchuan 750004, China
| | - Y Q Wei
- Department of General Medicine, General Hospital of Ningxia Medical University, Yinchuan 750004, China
| | - L Hai
- College of Clinical Medical, Ningxia Medical University, Yinchuan 750004, China
| | - Y C Hu
- Department of Infectious Diseases, General Hospital of Ningxia Medical University, Yinchuan 750004, China
| | - Z J Zhao
- Department of Medical Experimental Center, General Hospital of Ningxia Medical University, Yinchuan 750004, China
| | - W L Ma
- Department of Infectious Diseases, General Hospital of Ningxia Medical University, Yinchuan 750004, China
| | - L N Ma
- Department of Infectious Diseases, General Hospital of Ningxia Medical University, Yinchuan 750004, China
| | - X Y Liu
- Department of Infectious Diseases, General Hospital of Ningxia Medical University, Yinchuan 750004, China
| | - X C Ding
- College of Clinical Medical, Ningxia Medical University, Yinchuan 750004, China; Department of Infectious Diseases, General Hospital of Ningxia Medical University, Yinchuan 750004, China
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21
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Song JL, Wei XL, Zhang YK, Hao XX, Huang WM, Wei Q, Wei YQ, Feng R. [The prognostic value of the international prognostic index, the national comprehensive cancer network IPI and the age-adjusted IPI in diffuse large B cell lymphoma]. Zhonghua Xue Ye Xue Za Zhi 2019; 39:739-744. [PMID: 30369184 PMCID: PMC7342249 DOI: 10.3760/cma.j.issn.0253-2727.2018.09.007] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Objective: To explore the prognostic value of the international prognostic index (IPI), the national comprehensive cancer network IPI(NCCN-IPI)and the age-adjusted IPI (aa-IPI) in diffuse large B cell lymphoma. Methods: A total of 311 patients with de novo diffuse large B-cell lymphoma (DLBCL) diagnosed from 2003 to 2012 in Nanfang hospital were included. All patients were divided into CHOP (cyclophosphamide, vincristine, doxorubicin, and prednisone) and R-CHOP (rituximab, CHOP) groups. Survival analysis was compared among IPI, NCCN-IPI and aa-IPI models. Discrimination of three different prognostic models was assessed using the Harrell's C statistic. Results: A total of 311 patients were analyzed. Among them, 128 patients were treated with CHOP regimen and other 183 patients were treated with R-CHOP regimen. In CHOP groups, both NCCN-IPI (5-year OS: 59.7% vs 26.8%, P<0.001) and aa-IPI (5-year OS: 71.0% vs 25.0%, P<0.001) showed better risk stratification for low-intermediate and high-intermediate group than the IPI (5-year OS: 47.6% vs 36.6%, P=0.003). However, in the patients treated with R-CHOP, NCCN-IPI showed better risk stratification in low, low-intermediate, high-intermediate groups (5-year OS: 96.0% vs 83.0% vs 66.5%, P=0.009). According to the Harrell's C statistic, C-index of IPI, NCCN-IPI and aa-IPI for overall survival (OS) were 0.546, 0.667, 0.698 in CHOP group and 0.611,0.654, 0.695 in R-CHOP group respectively. In patients younger than 60 years old, C-index of IPI, NCCN-IPI and aa-IPI for OS were 0.534, 0.675, 0.698 in CHOP group and 0.584, 0.648, 0.695 in R-CHOP respectively. Conclusion: The NCCN-IPI is more powerful than IPI and aa-IPI in DLBCL patients receiving R-CHOP. aa-IPI is a preferable model in predicting prognosis than IPI and NCCN-IPI in anthracycline-based chemotherapy without rituximab.
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Affiliation(s)
- J L Song
- Department of Hematology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
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22
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Zhou LL, Luo GX, Zhu LH, Wei Q, Wei YQ, Feng R, Li YQ. [Detection of promoter and 3' UTR mutation in A20 gene of a case with T cell lymphoma cell leukemia]. Zhonghua Xue Ye Xue Za Zhi 2019; 39:851-854. [PMID: 30369207 PMCID: PMC7348281 DOI: 10.3760/cma.j.issn.0253-2727.2018.10.012] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To clarify the characteristics of the A20 regulatory changes by analyzing mutations in the non-coding region of the A20 gene in patients with T-cell lymphoma leukemia (T-LCL) . Methods: PCR and nucleotide sequence analysis were used to detect mutations in the non-coding region of the A20 gene, and DNA samples from PBMCs of 52 cases of T-LCL and 99 healthy controls. Results: A missense mutation (c.-672T>G) was detected in the A20 gene promoter from one T-LCL patient, which has been registered as a SNP (rs139054966) in gene bank. Meanwhile, a new mutation was detected in the 3' UTR mRNA (3916 (C>G) ) . These two mutations were absent in other T-LCL samples and controls. Conclusion: The rs139054966 (c.-672T>G) and 3916 (C>G) mutations in the A20 gene were detected in T-LCL patients for the first time. There was also rs139054966 located on the binding region of the transcription factor P53, and its significance remained to be further clarified.
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Affiliation(s)
| | - G X Luo
- Department of Hematology, the First Affiliated Hospital, Jinan University, Guangzhou 510630, China
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23
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Bu HY, Li XJ, Wang KM, Wei YQ, Chang WM, Zhou XJ. [Cervical spinal cord hemangioblastome: report of a case]. Zhonghua Bing Li Xue Za Zhi 2018; 47:65-66. [PMID: 29325256 DOI: 10.3760/cma.j.issn.0529-5807.2018.01.015] [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: 06/07/2023]
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24
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Wan Y, Tang MH, Chen XC, Chen LJ, Wei YQ, Wang YS. Inhibitory effect of liposomal quercetin on acute hepatitis and hepatic fibrosis induced by concanavalin A. ACTA ACUST UNITED AC 2015; 47:655-61. [PMID: 25098714 PMCID: PMC4165292 DOI: 10.1590/1414-431x20143704] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.6] [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: 11/19/2013] [Accepted: 03/17/2014] [Indexed: 02/06/2023]
Abstract
Immune response plays an important role in the development of hepatic fibrosis. In
the present study, we investigated the effects of quercetin on hepatitis and hepatic
fibrosis induced by immunological mechanism. In the acute hepatitis model, quercetin
(2.5 mg/kg) was injected iv into mice 30 min after concanavalin A
(Con A) challenge. Mice were sacrificed 4 or 24 h after Con A injection, and
aminotransferase tests and histopathological sections were performed. Treatment with
quercetin significantly decreased the levels of alanine aminotransferase (ALT) and
aspartate aminotransferase (AST). Consistent with this observation, treatment with
quercetin markedly attenuated the pathologic changes in the liver. A hepatic fibrosis
model was also generated in mice by Con A challenge once a week for 6 consecutive
weeks. Mice in the experimental group were treated with daily iv
injections of quercetin (0.5 mg/kg). Histopathological analyses revealed that
treatment with quercetin markedly decreased collagen deposition, pseudolobuli
development, and hepatic stellate cells activation. We also examined the effects of
quercetin on the nuclear factor kappa-light-chain-enhancer of activated B cells
(NF-κB) and transforming growth factor beta (TGF-β) pathways by immunohistochemistry
and real-time reverse transcriptase-polymerase chain reaction (RT-PCR). NF-κB and
TGF-β production was decreased after treatment with quercetin, indicating that the
antifibrotic effect of quercetin is associated with its ability to modulate NF-κB and
TGF-β production. These results suggest that quercetin may be an effective
therapeutic strategy in the treatment of patients with liver damage and fibrosis.
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Affiliation(s)
- Y Wan
- State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, China
| | - M H Tang
- State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, China
| | - X C Chen
- State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, China
| | - L J Chen
- State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, China
| | - Y Q Wei
- State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, China
| | - Y S Wang
- State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, China
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25
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Abstract
MicroRNAs (miRNAs), small and non-coding endogenous RNAs ∼22 nucleotides (nt) in length, have been known to regulate approximately 30 % of human gene expression at the post-transcriptional and translational levels. Accumulating data have demonstrated that certain miRNAs could exert an oncogenic and/or tumor suppressive function and might play essential roles in the regulation of apoptosis and autophagy in cancer. In this review, we summarize that certain oncogenic and tumor suppressive miRNAs could modulate apoptotic pathways in different types of cancer. Subsequently, we demonstrate that other miRNAs might play regulatory roles in the autophagic pathways of cancer. A limited number of oncogenic/tumor suppressive miRNAs could regulate apoptosis and autophagy, respectively, and cooperatively. Taken together, these findings would provide a new clue to elucidate more apoptotic and/or autophagic mechanisms of miRNAs for designing potential novel therapeutic strategies in cancer.
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Affiliation(s)
- Y Chen
- State Key Laboratory of Biotherapy, Department of Gastrointestinal Surgery, West China Hospital, Sichuan University, Chengdu, 610041, China
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Liu X, Zhu F, Ma XH, Shi Z, Yang SY, Wei YQ, Chen YZ. Predicting targeted polypharmacology for drug repositioning and multi- target drug discovery. Curr Med Chem 2013; 20:1646-61. [PMID: 23410165 DOI: 10.2174/0929867311320130005] [Citation(s) in RCA: 51] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/12/2012] [Revised: 10/05/2012] [Accepted: 10/12/2012] [Indexed: 11/22/2022]
Abstract
Prediction of polypharmacology of known drugs and new molecules against selected multiple targets is highly useful for finding new therapeutic applications of existing drugs (drug repositioning) and for discovering multi-target drugs with improved therapeutic efficacies by collective regulations of primary therapeutic targets, compensatory signalling and drug resistance mechanisms. In this review, we describe recent progresses in exploration of in-silico methods for predicting polypharmacology of known drugs and new molecules by means of structure-based (molecular docking, binding- site structural similarity, receptor-based pharmacophore searching), expression-based (expression profile/signature similarity disease-drug and drug-drug networks), ligand-based (similarity searching, side-effect similarity, QSAR, machine learning), and fragment-based approaches that have shown promising potential in facilitating drug repositioning and the discovery of multi-target drugs.
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Affiliation(s)
- X Liu
- State Key Laboratory of Biotherapy, Sichuan University, Chengdu 610064, P.R. China
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Xie Q, Wen F, Wei YQ, Deng HX, Li Q. Cost analysis of adjuvant therapy with XELOX or FOLFOX4 for colon cancer. Colorectal Dis 2013; 15:958-62. [PMID: 23506229 DOI: 10.1111/codi.12216] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/06/2012] [Accepted: 10/04/2012] [Indexed: 02/07/2023]
Abstract
AIM XELOX and FOLFOX4 have both been recommended as adjuvant therapy for stage III colon cancer. This study compared the two regimens in terms of monetary costs, assuming equal efficacy of the therapies. METHOD A retrospective financial audit was conducted of the medical records of patients treated with XELOX or FOLFOX4. All itemized expenses were classified as direct (chemotherapy, hospitalization, venous access and tests), related to adverse effects due to the adjuvant therapy, or societal (travel and time costs). The cost of supportive care was not included. RESULTS XELOX involved less total cost to the patient than FOLFOX4 (a difference of US$2857.68), fewer costs related to adverse effects ($668.97), and less travel ($26.07) and time ($390.93) expenditure per patient. CONCLUSION The results indicate that, overall, XELOX is a more affordable option than FOLFOX4 in China.
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Affiliation(s)
- Q Xie
- Department of Medical Oncology, Cancer Center, Sichuan University, Chengdu, China
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28
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Wang W, Dai LX, Zhang S, Yang Y, Yan N, Fan P, Dai L, Tian HW, Cheng L, Zhang XM, Li C, Zhang JF, Xu F, Shi G, Chen XL, Du T, Li YM, Wei YQ, Deng HX. Regulation of epidermal growth factor receptor signaling by plasmid-based microRNA-7 inhibits human malignant gliomas growth and metastasis in vivo. Neoplasma 2013; 60:274-83. [PMID: 23373996 DOI: 10.4149/neo_2013_036] [Citation(s) in RCA: 43] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
MicroRNAs are endogenous, non-coding RNAs of approximately 20-22 nucleotides that regulate genes expression by binding to the 3' untranslated region (UTR) of targets mRNAs and play critical roles in cancer pathways. Malignant glioma is the most common and highly lethal central nervous system tumor for which little effective treatment is available over several decades. The purpose of this study was to explore the therapeutic potential of plasmid-based microRNA-7 (miR-7) for gliomas in vivo. Enhancing miR-7 levels in vitro could significantly induce cell apoptosis, and inhibit cell proliferation, cell migration and invasion. Western blotting analysis was performed, which indicated that miR-7 directly inhibited epidermal growth factor receptor (EGFR) and further antagonized the downstream protein kinases including ERK, Akt and Stat3. Furthermore, systemic administration of miR-7 encapsulated in cationic liposome resulted in glioma xenografts growth arrest and the metastatic nodules decrease effectively in a sequence-specific manner. In this study, miR-7 was applied in glioma treatment for the first time in vivo. Our findings suggested that the plasmid-mediated gene therapy with miR-7 appeared to be a promising candidate for the development of new antitumor and anti-metastasis treatment for human glioma.
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Affiliation(s)
- W Wang
- Sichuan University, Chengdu, People's Republic of China
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Ma XH, Zhu F, Liu X, Shi Z, Zhang JX, Yang SY, Wei YQ, Chen YZ. Virtual screening methods as tools for drug lead discovery from large chemical libraries. Curr Med Chem 2013; 19:5562-71. [PMID: 23016548 DOI: 10.2174/092986712803833245] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/06/2012] [Revised: 09/13/2012] [Accepted: 09/14/2012] [Indexed: 11/22/2022]
Abstract
Virtual screening methods have been developed and explored as useful tools for searching drug lead compounds from chemical libraries, including large libraries that have become publically available. In this review, we discussed the new developments in exploring virtual screening methods for enhanced performance in searching large chemical libraries, their applications in screening libraries of ~ 1 million or more compounds in the last five years, the difficulties in their applications, and the strategies for further improving these methods.
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Affiliation(s)
- X H Ma
- State Key Laboratory of Biotherapy, Sichuan University, Chengdu 610064, P.R.China
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30
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Xie Q, Zhang S, Wang W, Li YM, Du T, Su XL, Wei YQ, Deng HX. Inhibition of hepatitis B virus gene expression by small interfering RNAs targeting cccDNA and X antigen. Acta Virol 2012; 56:49-55. [PMID: 22404609 DOI: 10.4149/av_2012_01_49] [Citation(s) in RCA: 3] [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: 11/08/2022]
Abstract
To test the possible inhibition of hepatitis B virus (HBV) replication and expression by small interfering RNAs (siRNAs) targeting simultaneously covalenthy closed circular DNA (dnacccDNA) and X antigen, corresponding recombinant plasmids were transfected into HepG2.2.15 cells and the levels of cccDNA, HBXAg, HBcAg, and HBeAg were assayed at various times post transfection. As expected, the single siRNAs showed marked inhibitory effects but their combination was even more efficient. These results provide a new insight into the development of a potential anti-HBV strategy of enhancing the efficacy of individual antivirals and overcoming the high mutation rate of HBV.
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Affiliation(s)
- Q Xie
- Sichuan University, Chengdu, People's Republic of China
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31
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Zhu F, Zheng CJ, Han LY, Xie B, Jia J, Liu X, Tammi MT, Yang SY, Wei YQ, Chen YZ. Trends in the exploration of anticancer targets and strategies in enhancing the efficacy of drug targeting. Curr Mol Pharmacol 2010; 1:213-32. [PMID: 20021435 DOI: 10.2174/1874467210801030213] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
A number of therapeutic targets have been explored for developing anticancer drugs. Continuous efforts have been directed at the discovery of new targets as well as the improvement of therapeutic efficacy of agents directed at explored targets. There are 84 and 488 targets of marketed and investigational drugs for the treatment of cancer or cancer related illness. Analysis of these targets, particularly those of drugs in clinical trials and US patents, provides useful information and perspectives about the trends, strategies and progresses in targeting key cancer-related processes and in overcoming the difficulties in developing efficacious drugs against these targets. The efficacy of anticancer drugs directed at these targets is frequently compromised by counteractive molecular interactions and network crosstalk, negative and adverse secondary effects of drugs, and undesired ADMET profiles. Multi-component therapies directed at multiple targets and improved drug targeting methods are being explored for alleviating these efficacy-reducing processes. Investigation of the modes of actions of these combinations and targeting methods offers clues to aid the development of more effective anticancer therapies.
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Affiliation(s)
- F Zhu
- Department of Pharmacy, National University of Singapore, Singapore
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32
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Zhu F, Zheng CJ, Han LY, Xie B, Jia J, Liu X, Tammi MT, Yang SY, Wei YQ, Chen YZ. Trends in the exploration of anticancer targets and strategies in enhancing the efficacy of drug targeting. Curr Mol Pharmacol 2010. [PMID: 20021435 DOI: 10.2174/1874-470210801030213] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
A number of therapeutic targets have been explored for developing anticancer drugs. Continuous efforts have been directed at the discovery of new targets as well as the improvement of therapeutic efficacy of agents directed at explored targets. There are 84 and 488 targets of marketed and investigational drugs for the treatment of cancer or cancer related illness. Analysis of these targets, particularly those of drugs in clinical trials and US patents, provides useful information and perspectives about the trends, strategies and progresses in targeting key cancer-related processes and in overcoming the difficulties in developing efficacious drugs against these targets. The efficacy of anticancer drugs directed at these targets is frequently compromised by counteractive molecular interactions and network crosstalk, negative and adverse secondary effects of drugs, and undesired ADMET profiles. Multi-component therapies directed at multiple targets and improved drug targeting methods are being explored for alleviating these efficacy-reducing processes. Investigation of the modes of actions of these combinations and targeting methods offers clues to aid the development of more effective anticancer therapies.
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Affiliation(s)
- F Zhu
- Department of Pharmacy, National University of Singapore, Singapore
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33
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Zhang P, Wang CT, Yan F, Gou L, Tong AP, Cai F, Li Q, Deng HX, Wei YQ. Prokaryotic expression of a novel mouse pro-apoptosis protein PNAS-4 and application of its polyclonal antibodies. Braz J Med Biol Res 2009; 41:504-11. [PMID: 18622494 DOI: 10.1590/s0100-879x2008000600012] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2008] [Accepted: 05/26/2008] [Indexed: 02/05/2023] Open
Abstract
Mouse PNAS-4 (mPNAS-4) has 96% identity with human PNAS-4 (hPNAS-4) in primary sequence and has been reported to be involved in the apoptotic response to DNA damage. However, there have been no studies reported of the biological functions of mPNAS-4. In studies conducted by our group (unpublished data), it was interesting to note that overexpression of mPNAS-4 promoted apoptotic death in Lewis lung carcinoma cells (LL2) and colon carcinoma cells (CT26) of mice both in vitro and in vivo. In our studies, mPNAS-4 was cloned into the pGEX-6P-1 vector with GST tag at N-terminal in Escherichia coli strain BL21(DE3). The soluble and insoluble expression of recombinant protein mPNAS-4 (rmPNAS-4) was temperature-dependent. The majority of rmPNAS-4 was insoluble at 37 degrees C, while it was almost exclusively expressed in soluble form at 20 degrees C. The soluble rmPNAS-4 was purified by one-step affinity purification, using a glutathione Sepharose 4B column. The rmPNAS-4 protein was further identified by electrospray ionization-mass spectrometry analysis. The search parameters of the parent and fragment mass error tolerance were set at 0.1 and 0.05 kDa, respectively, and the sequence coverage of search result was 28%. The purified rmPNAS-4 was further used as immunogen to raise polyclonal antibodies in New Zealand white rabbit, which were suitable to detect both the recombinant and the endogenous mPNAS-4 in mouse brain tissue and LL2 cells after immunoblotting and/or immunostaining. The purified rmPNAS-4 and our prepared anti-mPNAS-4 polyclonal antibodies may provide useful tools for future biological function studies for mPNAS.
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Affiliation(s)
- P Zhang
- State Key Laboratory of Biotherapy, West China Hospital, West China Medical School, Sichuan University, Chengdu, Sichuan, China
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34
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Lin XJ, Chen XC, Wang L, Wei YQ, Kan B, Wen YJ, He X, Zhao X. Dynamic progression of an intraperitoneal xenograft model of human ovarian cancer and its potential for preclinical trials. J Exp Clin Cancer Res 2007; 26:467-474. [PMID: 18365540] [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
This study was conducted to establish a feasible intraperitoneal xenograft model in nude mice which mimicked the dynamic progression of human ovarian cancer and to explore its potential for preclinical trials. A human ovarian tumor line SKOV3 was originally injected s.c. to develop tumors; then the tumors were harvested and minced into small particles for i.p. inoculation in three groups of nude mice which would be monitored consecutively. The intraperitoneal carcinomatosis and relevant organs were collected for histopathological dynamic comparison and CA125 immunohistochemical staining 7, 21 and 49 days after inoculation. An additional experiment with cisplatin sensitivity test was performed and tumor tissues were observed for apoptosis-Hoechst assay. The intraperitoneal carcinomatosis had a rapid progression which resulted in extensive dissemination on the peritoneal surfaces and invasion into abdominal lymph nodes, livers, pancreas and spleen. Tumor tissues revealed similar morphological features of primary tumor from which SKOV3 derived and part of in vivo tumor mass was positive for CA125. Cisplatin could significantly inhibit the intraperitoneal carcinomatosis growth. This model may provide a valuable platform to study the biological properties of ovarian cancer as well as to test new therapeutic strategies in preclinical trials.
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Affiliation(s)
- X J Lin
- Department of Gynecology and Obstetrics, Second West China Hospital, Sichuan University
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35
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Cui FJ, Tao WY, Xu ZH, Guo WJ, Xu HY, Ao ZH, Jin J, Wei YQ. Structural analysis of anti-tumor heteropolysaccharide GFPS1b from the cultured mycelia of Grifola frondosa GF9801. Bioresour Technol 2007; 98:395-401. [PMID: 16459075 DOI: 10.1016/j.biortech.2005.12.015] [Citation(s) in RCA: 98] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/22/2005] [Revised: 12/06/2005] [Accepted: 12/14/2005] [Indexed: 05/06/2023]
Abstract
A 21-kDa heteropolysaccharide, coded as GFPS1b, was obtained from the cultured mycelia of Grifola frondosa GF9801 by hot-water extraction, ethanol precipitation, and fractioned by DEAE Sepharose Fast-flow, followed by the purification with Sephadex G-100 column chromatography using an AKTA purifier. It exhibited more potent anti-proliferative activity on MCF-7 cells than other polysaccharide fractions. GFPS1b was an acidic polysaccharide with approximately 16.60% protein and 4.3% uronic acid. Gas chromatography of absolute acid hydrolysate of GFPS1b suggested that it was composed of D-glucose, D-galactose, and L-arabinose with a molar ratio of 4:2:1. Periodate oxidation, Smith degradation, partial acid hydrolyzation, methylation analysis, FT-IR, and (1)H, (13)C NMR spectroscopy analysis revealed that GFPS1b had a backbone consisting of alpha-(1-->4)-linked D-galacopyranosyl and alpha-(1-->3)-linked D-glucopyranosyl residues substituted at O-6 with glycosyl residues composed of alpha-L-arabinose-(1-->4)-alpha-D-glucose (1--> linked residues.
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Affiliation(s)
- F J Cui
- The Key Laboratory of Industrial Biotechnology, Ministry of Education, Southern Yangtze University, Wuxi 214036, PR China.
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36
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Li JG, Wei YQ, Shen K. [Determination of trace iodine based on kinetic-spectrophotometry with malachite green-chloramine T system]. Guang Pu Xue Yu Guang Pu Fen Xi 2001; 21:726-728. [PMID: 12945345] [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: 05/24/2023]
Abstract
In this paper, a new kinetic-spectrophotometric method for the determination of trace amount of iodine has been proposed. It is based on the iodine catalysed the reaction of malachite green oxidized by chloramine T in hydrochloric acid medium. The method is sensitive, simple and with good selectivity. The linear range of determination of iodine is 0-48 micrograms.L-1, the detection limit is 4.9 x 10(-10) g.mL-1. The method has been used for the determination of trace amount of iodine in food with satisfactory results.
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Affiliation(s)
- J G Li
- Department of Chemistry and Chemical Engineering, Suzhou University, Suzhou 215006, China
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37
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Wei YQ, Huang MJ, Yang L, Zhao X, Tian L, Lu Y, Shu JM, Lu CJ, Niu T, Kang B, Mao YQ, Liu F, Wen YJ, Lei S, Luo F, Zhou LQ, Peng F, Jiang Y, Liu JY, Zhou H, Wang QR, He QM, Xiao F, Lou YY, Xie XJ, Li Q, Wu Y, Ding ZY, Hu B, Hu M, Zhang W. Immunogene therapy of tumors with vaccine based on Xenopus homologous vascular endothelial growth factor as a model antigen. Proc Natl Acad Sci U S A 2001; 98:11545-50. [PMID: 11553767 PMCID: PMC58766 DOI: 10.1073/pnas.191112198] [Citation(s) in RCA: 97] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/11/2022] Open
Abstract
Overcoming immune tolerance of the growth factors associated with tumor growth should be a useful approach to cancer therapy by active immunity. We used vascular endothelial growth factor (VEGF) as a model antigen to explore the feasibility of the immunogene tumor therapy with a vaccine based on a single xenogeneic homologous gene, targeting the growth factors associated with angiogenesis. To test this concept, we constructed a plasmid DNA encoding Xenopus homologous VEGF (XVEGF-p) and control vectors. We found that immunogene tumor therapy with a vaccine based on XVEGF was effective at both protective and therapeutic antitumor immunity in several tumor models in mice. VEGF-specific autoantibodies in sera of mice immunized with XVEGF-p could be found in Western blotting analysis and ELISA assay. The purified immunoglobulins were effective at the inhibition of VEGF-mediated endothelial cell proliferation in vitro, and at antitumor activity and the inhibition of angiogenesis by adoptive transfer in vivo. The elevation of VEGF in the sera of the tumor-bearing mice could be abrogated with XVEGF-p immunization. The antitumor activity and production of VEGF-specific autoantibodies, significantly elevated IgG1 and IgG2b, could be abrogated by the depletion of CD4(+) T lymphocytes. The observations may provide a vaccine strategy for cancer therapy through the induction of autoimmunity against the growth factors associated with tumor growth in a cross reaction with single xenogeneic homologous gene and may be of importance in the further exploration of the applications of other xenogeneic homologous genes identified in human and other animal genome sequence projects in cancer therapy.
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Affiliation(s)
- Y Q Wei
- Center for Biotherapy of Cancer and Cancer Research Center, First University Hospital, HuaXi Medical School, Sichuan University, Guo Xue Xiang, People's Republic of China.
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38
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Abstract
The loading of dendritic cells (DCs) with whole tumor cell lysates may circumvent the facts that few tumor-specific antigens have been identified in human solid tumors. The present study was designed to investigate whether ovarian cancer cells lysate-pulsed DCs activate T cell responses against autologous ovarian tumors. Incubation of T cells with autologous tumor cell lysate-pulsed DCs stimulated proliferation of autologous T cells. T cells primed by autologous tumor cell lysate-pulsed DCs showed significant killing activity against autologous tumor cells, which could be blocked by anti-MHC-class-I and anti-CD8 mAb. By contrast, T cells primed by autologous unpulsed DCs alone or tumor lysates alone failed to exhibit significant killing activity. In addition, T cells primed by DCs pulsed with allogeneic tumor cell lysates or with autologous normal cell lysate or by these cell lysates alone did not induce the increase in the autologous tumor killing activity. As additional controls, T cells stimulated with autologous tumor lysate-pulsed DCs express no increase in the lysis of autologous monocytes, allogeneic ovarian tumor cells and other cell lines including K562, Daudi and Molt-4. Furthermore, T cells stimulated with autologous tumor lysate-pulsed DCs could produce the considerable amounts of cytokines such as GM-CSF, TNF-alpha and IFN-gamma. The data in the present study suggest that whole tumor cell lysates-pulsed DCs could activate T cell responses against autologous ovarian tumor cells, and that these pulsed DCs may be used as a new approach for the specific immunotherapy of ovarian cancer patients.
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Affiliation(s)
- X Zhao
- Department of Gynecology and Obstetrics, Second University Hospital, West China University of Medical Sciences (HuaXi Medical School, Sichuan University), Chengdu, Sichuan, The People's Republic of China
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39
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Wei YQ, Wang QR, Zhao X, Yang L, Tian L, Lu Y, Kang B, Lu CJ, Huang MJ, Lou YY, Xiao F, He QM, Shu JM, Xie XJ, Mao YQ, Lei S, Luo F, Zhou LQ, Liu CE, Zhou H, Jiang Y, Peng F, Yuan LP, Li Q, Wu Y, Liu JY. Immunotherapy of tumors with xenogeneic endothelial cells as a vaccine. Nat Med 2000; 6:1160-6. [PMID: 11017149 DOI: 10.1038/80506] [Citation(s) in RCA: 198] [Impact Index Per Article: 8.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
Abstract
The breaking of immune tolerance against autologous angiogenic endothelial cells should be a useful approach for cancer therapy. Here we show that immunotherapy of tumors using fixed xenogeneic whole endothelial cells as a vaccine was effective in affording protection from tumor growth, inducing regression of established tumors and prolonging survival of tumor-bearing mice. Furthermore, autoreactive immunity targeting to microvessels in solid tumors was induced and was probably responsible for the anti-tumor activity. These observations may provide a new vaccine strategy for cancer therapy through the induction of an autoimmune response against the tumor endothelium in a cross-reaction.
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Affiliation(s)
- Y Q Wei
- Center for Biotherapy of Cancer and Cancer Center, First University Hospital, West China University of Medical Sciences (HuaXi Medical School, Sichuan University), Guo Xue Xiang, The People's Republic of Chin.
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40
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Shi JY, Wei YQ, Wu LX. [Care of type II respiratory failure with a BIPAP ventilator]. Zhonghua Hu Li Za Zhi 1997; 32:323-5. [PMID: 9384022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
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41
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Huang ZH, Yang DZ, Wei YQ. [Effect of atropine on the enhancing action of Fructus Aurantii Immaturus on the myoelectric activity of small intestine in dogs]. Zhongguo Zhong Xi Yi Jie He Za Zhi 1996; 16:292-4. [PMID: 9387723] [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: 02/05/2023]
Abstract
Effect of Fructus Aurantii Immaturus (FAI) was observed by using the computerized electrophysiologic method with the interdigestive myoelectric complex (IDMEC) as criterion. 100% FAI was given to the healthy, awakened and fasting dogs by gastrogavage and as soon as the effect on electric activity of small intestine appeared, atropine was injected. Results showed that the enhancing effect of FAI could be inhibited significantly by atropine, an antagonist of cholinergic receptor. It revealed that although the duration of phase II and general cycle were prolonged, but the spike burst per cluster in the duration between phase II and phase III as well as that per minute were decreased. It suggested the effect of FAI might be relevant with muscarinic receptor.
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Affiliation(s)
- Z H Huang
- Department of Physiology, Nanjing Railway Medical College
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42
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Johnson JE, Wei YQ, Prevette D, Oppenheim RW. Brain-derived proteins that rescue spinal motoneurons from cell death in the chick embryo: comparisons with target-derived and recombinant factors. J Neurobiol 1995; 27:573-89. [PMID: 7561835 DOI: 10.1002/neu.480270411] [Citation(s) in RCA: 15] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
Spinal motoneurons that normally die during early development can be rescued by a variety of purified growth or neurotrophic factors and target tissue extracts. There is also indirect evidence that brain or supraspinal afferent input may influence lumbar motoneuron survival during development and that this effect may be mediated by central nervous system-derived trophic agents. This report examines the biological and biochemical properties of motoneuron survival activity obtained from extracts of the embryonic chick brain. Treatment with an ammonium sulfate (25% to 75%) fraction of embryonic day 16 (E16) or E10 brain extracts rescued many spinal motoneurons that otherwise die during the normal period of cell death in vivo (E6 to E10). The same fractions also enhanced lumbar motoneuron survival following deafferentation. There were both similarities and differences between the active fractions derived from brain extracts (BEX) when compared with extracts derived from target muscles (MEX) or with purified neurotrophic factors. Survival activity from E10 BEX was as effective in promoting motoneuron survival as E10 MEX and more effective than astrocyte-conditioned media. Unlike MEX, the active fractions from BEX also rescued placode-derived nodose ganglion cells. In addition, unlike nerve growth factor and brain-derived neurotrophic factor, active BEX fractions did not rescue neural crest-derived dorsal root ganglion cells or sympathetic ganglion neurons. Interestingly, among many cranial motor and other brainstem nuclei examined, only the survival of motoneurons from the abducens nucleus was enhanced by BEX. Active proteins obtained from BEX were further separated by gel filtration chromatography and by preparative isoelectric focusing techniques. Activity was recovered in a basic (pI 8) and an acidic (pI 5) small molecular weight protein fraction (20 kD or less). The specific activity of the basic fraction was increased x66 when compared with the specific activity of crude BEX, and the basic fraction had a slightly higher specific activity than the acidic fraction. The biological and biochemical properties of these fractions are discussed in the context of known neurotrophic factors and their effects on normal and lesion-induced motoneuron death during development.
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Affiliation(s)
- J E Johnson
- Department of Neurobiology and Anatomy, Bowman Gray School of Medicine of Wake Forest University, Winston-Salem, North Carolina 27157-1010, USA
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43
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Zhao X, Wei YQ, Kariya Y, Teshigawara K, Uchida A. Accumulation of gamma/delta T cells in human dysgerminoma and seminoma: roles in autologous tumor killing and granuloma formation. Immunol Invest 1995; 24:607-18. [PMID: 7622197 DOI: 10.3109/08820139509066861] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The precise biological function of a subset of T cells bearing gamma/delta T cell receptor (TCR) remains poorly understood. The present study demonstrated the presence of gamma/delta T cells in tumor-infiltrating lymphocytes (TIL) and peripheral blood lymphocytes (PBL) of human patients with dysgerminoma and seminoma when determined by flow cytometry and in situ immunohistochemical staining. TIL contained a high percentage of gamma/delta T cells, ranging from 17.3 to 35.1%. gamma/delta T cells often accumulated within the granulomatous inflammation of tumor tissues. The majority of gamma/delta T cells were V gamma 9/V delta 2+ cells. Freshly isolated PBL, TIL and purified gamma/delta T cells showed autologous tumor killing (ATK) activity, which could be inhibited by monoclonal antibodies (mAb) against V delta 2. Furthermore, two gamma/delta T cell clones established from TIL showed cytotoxicity against autologous and allogeneic dysgerminoma, while they had low or no lytic effects on other cell types including carcinomas of ovary and tumor cell lines such as K562, Daudi and Molt-4. Lysis of autologous tumor cells by the clone was inhibited completely by anti-V delta 2 mAb and partially by mAb against CD3, LFA-1 alpha and ICAM-1 molecules, while it was resistant to anti-CD8, anti-HLA-ABC and anti-HLA-DR mAb. Supernatants produced by gamma/delta T cell clones induced adhesion, aggregation and increased DNA synthesis of monocytes and some characteristics of activated macrophages or epithelioid cells. Tumor necrosis factor (TNF)-alpha, granulocyte-macrophage colony stimulating factor (GM-CSF) and interferon (IFN)-gamma were detected in the supernatants of gamma/delta T cell clone. These results suggest that gamma/delta T cells accumulating in dysgerminoma and seminoma exhibit ATK activity through V gamma 9/delta 2 TCR and these gamma/delta T cells also play a role in the formation of granulomatous inflammation, which is associated with human dysgerminoma and seminoma.
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Affiliation(s)
- X Zhao
- Department of Late Effect Studies, Kyoto University, Japan
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44
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Wei YQ, Zhao X, Kariya Y, Teshigawara K, Uchida A. Inhibition of proliferation and induction of apoptosis by abrogation of heat-shock protein (HSP) 70 expression in tumor cells. Cancer Immunol Immunother 1995; 40:73-8. [PMID: 7882385 PMCID: PMC11037574 DOI: 10.1007/bf01520287] [Citation(s) in RCA: 132] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/1994] [Accepted: 11/22/1994] [Indexed: 01/27/2023]
Abstract
Tumor cells often express elevated levels of heat-shock protein (HSP) 70. The present study was designed to investigate the role of HSP70 in the proliferation and survival of tumor cells in the human system. When Molt-4 and other tumor cells were treated in vitro with HSP70 antisense oligomer, they displayed propidium-iodide-stained condensed nuclei (intact or fragmented). A ladder-like pattern of DNA fragments was observed with HSP70 antisense-oligomer-treated tumor cells in agrose gel electrophoresis, which was consistent with internucleosomal DNA fragmentation. Flow cytometry analysis revealed the hypodiploid DNA peak of propidium-iodide-stained nuclei in the antisense-oligomer-treated cells. The apoptosis induced by HSP antisense oligomer was dose- and time-dependent. The antisense oligomer induced apoptosis mainly in tumor cells at G1 and S phase, resulting in an inhibition of cell proliferation. HSP70 antisense oligomer caused DNA-sequence-specific inhibition of HSP70 expression, which preceded apparent apoptosis. These results indicate that HSP70 antisense treatment inhibits the expression of HSP70, which in turn inhibits cell proliferation and induces apoptosis in tumor cells and suggest that HSP70 is required for tumor cells to proliferate and survive under normal condition.
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Affiliation(s)
- Y Q Wei
- Department of Late Effect Studies, Kyoto University, Japan
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45
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Wei YQ, Zhao X, Kariya Y, Fukata H, Teshigawara K, Uchida A. Induction of apoptosis by quercetin: involvement of heat shock protein. Cancer Res 1994; 54:4952-7. [PMID: 8069862] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023]
Abstract
Quercetin, a widely distributed bioflavonoid, inhibits the growth of tumor cells. The present study was designed to investigate the possible involvement of apoptosis and heat shock protein in the antitumor activity of quercetin. Treatment with quercetin of K562, Molt-4, Raji, and MCAS tumor cell lines resulted in morphological changes, including propidium iodide-stained condensed nuclei (intact or fragmented), condensation of nuclear chromatin, and nuclear fragmentation. Agarose gel electrophoresis of quercetin-treated tumor cells demonstrated a typical ladder-like pattern of DNA fragments. In addition, the hypodiploid DNA peak of propidium iodide-stained nuclei was revealed by flow cytometry. Quercetin induced apoptosis in cells at G1 and S in a dose- and time-dependent manner. The apoptosis-inducing activity of quercetin was enhanced by cycloheximide and actinomycin D. A nuclease inhibitor, aurintricarboxylic acid, inhibited quercetin-induced apoptosis, whereas deprivation of intracellular calcium by EGTA had no effect. 12-O-Tetradecanoylphorbol-13-acetate and H-7 did not affect the induction of apoptosis by quercetin. The synthesis of HSP70 was inhibited by quercetin when determined by immunocytochemistry, Western blot analysis, and Northern blot analysis. Quercetin-treated tumor cells were not induced to show aggregation of HSP70 in the nuclei and nucleolus in response to heat shock, resulting in apoptosis. By contrast, when tumor cells were first exposed to heat shock, no apoptosis was induced by quercetin. In addition, pretreatment of tumor cells with HSP70 antisense oligomer that specifically inhibited the synthesis of HSP70 enhanced the subsequent induction of apoptosis by quercetin. These results suggest that quercetin displays antitumor activity by triggering apoptosis and that HSP70 may affect quercetin-induced apoptosis.
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Affiliation(s)
- Y Q Wei
- Department of Late Effect Studies, Kyoto University, Japan
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46
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Hang ZB, Wei YQ. [Ultrastructural analysis of liposarcoma]. Zhonghua Bing Li Xue Za Zhi 1993; 22:269-71. [PMID: 8168191] [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: 01/29/2023]
Abstract
9 cases of liposarcoma, including 5 myxoid type, 3 pleomorphic type and 1 well differentiated type, were studied with light, electron microscopy and immunohistochemistry. Comparative observations revealed similarities between liposarcoma cells and cells of developing fat tissue. Liposarcoma cells resemble primary mesenchymal cells, fibroblasts, early, midstage and late lipoblasts or mature lipocytes. But certain differences also exist: First, atypia in liposarcoma cells, such as the appearance of mono- or multinuclei giant lipoblasts in some cases. Second, certain types of liposarcoma are predominated by lipoblasts of a specific stage. Under electron microscope, transitional morphology from both primary mesenchymal cell and fibroblast to lipoblast can be observed, which is an indication that lipoblasts may originate from these two types of cells. Differential diagnosis by electron microscopy is also discussed.
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Affiliation(s)
- Z B Hang
- Department of Pathology, West China University of Medical Sciences, Sichuan
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Morita M, Sasada T, Nomura I, Wei YQ, Tsukamoto Y. Influence of low dissolved oxygen concentration in body fluid on corrosion fatigue behaviors of implant metals. Ann Biomed Eng 1992; 20:505-16. [PMID: 1416288 DOI: 10.1007/bf02368170] [Citation(s) in RCA: 16] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022]
Abstract
In their previous study, the authors carried out a fatigue test for AISI 316, 316L stainless steels and COP1 alloy in a living animal body and observed a remarkable deterioration in the fatigue durability of these metals. In that study, it was concluded that the reason the corrosion resistance of the metals was reduced in the living body was that the low concentration of dissolved oxygen gas in the body fluid (the partial pressure pO2; 28-78 mmHg) was insufficient to form the chromium oxide passivation film on the metal surface, and the base metal (iron) was released into the environmental fluid in ionic form. In this paper, with the concentration of dissolved oxygen gas in a physiological normal saline solution being set equivalent to that of living body fluid, fatigue tests on AISI 316 were made to simulate the stress corrosion behavior of the metal in the living body. As a result, remarkable deterioration of fatigue strength was observed in the low O2 concentrated normal saline solution, which was the same as that in the living animal body.
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Affiliation(s)
- M Morita
- Department of Biomedical Engineering, School of Medicine, Kitasato University, Kanagawa, Japan
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Wei YQ, Hang ZB, Liu KF. In situ observation of inflammatory cell-tumor cell interaction in human seminomas (germinomas): light, electron microscopic, and immunohistochemical study. Hum Pathol 1992; 23:421-8. [PMID: 1563744 DOI: 10.1016/0046-8177(92)90090-p] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/27/2022]
Abstract
The precise functional significance of the inflammatory cells that infiltrate seminomas remains poorly understood. The present study analyzed 15 cases of testicular and extragonadal seminomas (germinomas) by light and electron microscopy, as well as by immunohistochemical methods, with emphasis on the inflammatory cell-tumor cell interaction. Ultrastructurally, in all 15 cases the lymphocytes (mainly consisting of small lymphocytes) were found to be in intimate contact with the intact tumor cells and with those that displayed damage of varying degree. In particular, relatively early damage, such as local loss of the membrane and/or cytoplasm, occurred at the contact regions. Often, the lymphocytes penetrated deeply into the cytoplasm, even into the nucleus of the tumor cell. In spite of the severe damage to the tumor cells, the lymphocytes were themselves intact. The stromal cells contacted by lymphocytes did not show damage. The tumor cells were in contact with epithelioid cells of granulomas in six cases and scattered macrophages in 11 cases showed damage similar to that seen in tumor cells in contact with lymphocytes. The great majority of the lymphocytes were UCHL1-positive cells. L26- or Leu-7-positive cells were rarely found. The epithelioid cells and scattered macrophages were positive for MAC387. The present morphologic study suggests that the infiltrating lymphocytes, epithelioid cells (probably derived from macrophages), and macrophages may be directly cytotoxic to the tumor cells in the microenvironments of testicular and extragonadal seminomas (germinomas).
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Affiliation(s)
- Y Q Wei
- Department of Pathology, West China University of Medical Sciences, Chengdu, Sichuan Province, People's Republic of China
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Abstract
We observed 101 cases of Chinese nasopharyngeal carcinoma (NPC) with light and electron microscopy, focusing on the relationship between lymphocytes and cancer cells and their alterations during interaction. Cancer cells conjugated by lymphocytes showed injuries to varying degrees in 60% of cases with World Health Organization classification 2 + 3 NPC, but not in those cases with World Health Organization classification 1 NPC. The alterations of cancer cells conjugated by lymphocytes included loss of cell membrane and cytoplasm, degeneration of cell organelles, and even cell necrosis. Initial lesions of the cancer cell frequently occurred in the region infiltrated by lymphocytes. The lymphocytes could penetrate deeply into the cytoplasm, even into the nucleus of the cancer cell. At the same time, lymphocytes were themselves intact. The lymphocytes were classified into three groups: small lymphocytes, medium-sized lymphocytes, and blastoid type or transformed lymphocytes. The current study provided the direct ultrastructural evidence that lymphocyte-mediated cancer cell lysis might occur in the microenvironment of NPC and enabled us to summarize ultrastructural features of this phenomenon.
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Affiliation(s)
- Z B Hang
- Department of Pathology, West China University of Medical Sciences, Chengdu, Sichuan Province
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Wei YQ. [Ultrastructural study of fibrosarcoma]. Zhonghua Zhong Liu Za Zhi 1990; 12:203-5. [PMID: 2249594] [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: 12/31/2022]
Abstract
Ultrastructure of 9 cases of fibrosarcoma was observed and compared with that of fibrous connective tissue of 4 human embryos and 9 cases of spindle cell sarcoma, including 3 each of leiomyosarcoma, neurofibrosarcoma and dermatofibrosarcoma protuberans. Ultrastructurally, fibrosarcoma consisted of well-differentiated fibroblast-like cells, poorly differentiated fibroblast-like cells (embryonic fibroblast-like cells), myofibroblast-like cells and primitive mesenchymal cells. It is suggested that fibrosarcoma may arise from primitive mesenchymal cells which are capable of differentiating into fibroblast and myofibroblast. There were two special cases of fibrosarcoma in this series. One was a congenital fibrosarcoma with ultrastructure resembling adult and the other was a sarcoma of myofibroblast. Diagnosis and differential diagnosis between fibrosarcoma and leiomyosarcoma, neurofibrosarcoma, dermatofibrosarcoma protuberans are discussed.
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Affiliation(s)
- Y Q Wei
- West China Medical College, Chengdu
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