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Xuan YJ, Dai XX, Chen L, Xiang LH, Jin SL, Zhang CF. Efficacy and safety of home-based 590 nm light-emitting diodes and in-hospital 1064 nm Q-switched Nd:YAG laser in the treatment of facial melasma: A single-centre, prospective, randomized clinical trial. J Eur Acad Dermatol Venereol 2024; 38:e162-e164. [PMID: 37703182 DOI: 10.1111/jdv.19510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/25/2023] [Accepted: 09/08/2023] [Indexed: 09/15/2023]
Affiliation(s)
- Y J Xuan
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China
| | - X X Dai
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China
| | - L Chen
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China
| | - L H Xiang
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China
| | - S L Jin
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China
| | - C F Zhang
- Department of Dermatology, Huashan Hospital, Fudan University, Shanghai, China
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Chen F, Zhang GN, Lei W, Zhou SG, Zhang Y, Liu L, Jia Y, Xie RK, Tian XF, Guo J, Yang YB, Wang XF, Wu XM, Sun QJ, Zhou X, Lin Y, Zhang YZ, Ma JQ, Liu YX, Cheng YF, Chen JC, Qu QX, Du DM, Wang GY, Wang S, Ling YL, Wu DF, Zhang CF, Lang JH. Effectiveness and safety of REBACIN as a non-invasive intervention for persistent high-risk human papillomavirus infection: A real-world prospective multicenter cohort study. Gynecol Oncol 2023; 178:8-13. [PMID: 37734188 DOI: 10.1016/j.ygyno.2023.09.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2023] [Revised: 08/06/2023] [Accepted: 09/10/2023] [Indexed: 09/23/2023]
Abstract
BACKGROUND We previously reported that REBACIN effectively eliminates persistent high-risk human papillomavirus (hrHPV) infection. Here, we conducted a prospective multicenter cohort study to evaluate the safety and effectiveness of REBACIN, taking into account factors such as specific hrHPV subtype and patient's age. METHODS According to inclusion/exclusion criteria and participant willingness, 3252 patients were divided into REBACIN group while 249 patients into control group. Patients in REBACIN group received one course treatment of intravaginal administration of REBACIN while no treatment in control group. After drug withdrawal, participants in both groups were followed up. RESULTS The clearance rate of persistent hrHPV infection in REBACIN group was 60.64%, compared to 20.08% in control group. Specifically, the clearance rates for single-type infection of HPV16 or HPV18 were 70.62% and 69.23%, respectively, which was higher than that of HPV52 (59.04%) or HPV58 (62.64%). In addition, the single, double, and triple/triple+ infections had a clearance rate of 65.70%, 53.31%, and 38.30%, respectively. Moreover, 1635 patients under 40 years old had a clearance rate of 65.14%, while it was 55.08% for 1447 patients over 40 years old. No serious adverse effects were found. CONCLUSION This study confirmed that REBACIN can effectively and safely eliminate persistent hrHPV infection, which the clearance rate of HPV16/18 is higher than that of HPV52/58, the clearance rate of single-type infection is higher than that of multiple-type infections, and the clearance rate in young patients is higher than that in elder patients, providing a guidance for REBACIN application in clearing hrHPV persistent infection in real-world settings. CLINICAL TRIAL REGISTRATION Chinese Clinical Trial Registry Registration Number: ChiCTR1800015617 http://www.chictr.org.cn/showproj.aspx?proj=26529 Date of Registration: 2018-04-11.
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Affiliation(s)
- Fei Chen
- National Clinical Research Center for Obstetric & Gynecologic Diseases, and Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | | | - Wei Lei
- West China Second University Hospital, Sichuan University, Chengdu, China
| | - Shu-Guang Zhou
- Anhui Medical University Affiliated Maternity and Child Healthcare Hospital, Hefei, China
| | - Ying Zhang
- The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Lin Liu
- The First Affiliated Hospital of Anhui Medical University, Hefei, China
| | - Ying Jia
- The First Affiliated Hospital of Chongqing Medical University, Chongqing, China
| | - Rong-Kai Xie
- Xinqiao Hospital Army Medical University, Chongqing, China
| | | | - Jie Guo
- The Second Affiliated Hospital of Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Yue-Bo Yang
- The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Xue-Feng Wang
- The Third Affiliated Hospital of Southern Medical University, Guangzhou, China
| | - Xiao-Mei Wu
- The First People's Hospital of Yunnan Province, Kunming, China
| | - Qi-Jian Sun
- First Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Xu Zhou
- The Second Hospital of Jilin University, Changchun, China
| | - Yang Lin
- The Second Hospital of Jilin University, Changchun, China
| | | | - Jun-Qi Ma
- The First Affiliated Hospital of Xinjiang Medical University, Urumqi, China
| | - Yu-Xiu Liu
- China-Mongolia Hospital of Ulanqab, Ulanqab, China
| | - Yi-Fan Cheng
- The Women's Hospital School of Medicine Zhejiang University, Hangzhou, China
| | - Jian-Cui Chen
- Fujian Provincial Maternal and Child Health Care Hospital, Fuzhou, China
| | - Quan-Xin Qu
- Tianjin First Central Hospital, Tianjin, China
| | - Dong-Mei Du
- Key Laboratory of Protein Engineering and Drug Development of Hainan, Haikou, China
| | - Gui-Yu Wang
- Key Laboratory of Protein Engineering and Drug Development of Hainan, Haikou, China
| | - Sheng Wang
- Key Laboratory of Protein Engineering and Drug Development of Hainan, Haikou, China
| | - Yu-Li Ling
- Key Laboratory of Protein Engineering and Drug Development of Hainan, Haikou, China
| | | | | | - Jing-He Lang
- National Clinical Research Center for Obstetric & Gynecologic Diseases, and Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China.
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Zhang CF, Gao Y, Qin Y, Hu XY, Lu JN, Zhao SJ, Lin WC, Liu YF, Yin GQ, Jiang WH, Fan HF, Deng L. [Impact of asthma action plan-based remote joint management model on asthma control in children]. Zhonghua Er Ke Za Zhi 2023; 61:820-826. [PMID: 37650164 DOI: 10.3760/cma.j.cn112140-20230222-00123] [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: 09/01/2023]
Abstract
Objective: To compare the effects of the China Children's Asthma Action Plan (CCAAP)-based remote joint management model with traditional management model on the control of childhood asthma. Methods: A retrospective cohort study was conducted to analyze the general data and asthma control assessment data of 219 children with asthma who attended the respiratory department of Guangzhou Women's and Children's Medical Center from April 2021 to October 2021 and were followed up for 1 year or more. According to the follow-up management model, the CCAAP-based remote joint management model was used in the observation group and the traditional management model was used in the control group, and the propensity score matching method was applied to match the data of children in the two management models for comparison. Paired-samples t-test, Wilcoxon signed-rank test, McNemar χ2-test or χ2-test or nonparametric tests were used to compare the general data and asthma control assessment data between the two matched groups of children. Results: Among 219 children with asthma, 145 were male and 74 were female, aged at consultation (7.2±2.4) years. There were 147 cases in the observation group and 72 cases in the control group, and 27 cases in each of the observation and control groups were successfully matched. The number of asthma exacerbation aura, acute exacerbations, and emergency room visits or hospitalizations for asthma exacerbations were lower in the observation group than in the control group after pairing (1 (0, 2) vs. 3 (1, 5) times, 0 (0,0) vs. 0 (0, 1) times, 0 (0,0) vs. 1 (0, 1) times, Z=-3.42, -2.58, -3.17, all P<0.05). The use of peak flowmeters was higher in children aged 5 years and older in the observation group than in the control group after pairing (100% (22/22) vs. 13% (3/23), χ2=54.00,P<0.001). The ratio of actual to predicted 1st second expiratory volume of force after follow-up in the observation group after pairing was higher than that before follow-up in the observation group and after follow-up in the control group ((95±11)% vs. (85±10)%, (95±11)% vs. (88±11)%, t=-3.40, 2.25, all P<0.05). The rate of complete asthma control after follow-up was higher in both the observation and control groups after pairing than before follow-up for 12 months in both groups (93% (25/27) vs. 41% (11/27), 52% (14/27) vs. 41% (11/27), H=56.19, 45.37, both P<0.001), and the rate of complete control of asthma in children in the observation group was higher than that in the control group at 3 and 12 months of follow-up management (56% (15/27) vs. 25% (5/20), 93% (25/27) vs. 52% (14/27), χ2=47.00, 54.00, both P<0.001). The number of offline follow-up visits, inhaled hormone medication adherence scores, and caregiver's asthma perception questionnaire scores were higher in the observation group than in the control group after pairing (6 (4, 8) vs. 4 (2,5), (4.8±0.3) vs. (4.0±0.6) score, (19.3±2.6) vs. (15.2±2.7) score, Z=6.58, t=6.57, 5.61, all P<0.05), and the children in the observation group had lower school absences, caregiver absences, asthma attack visit costs, and caregiver PTSD scores than the control group (0 (0,0) vs.3 (0, 15) d, 0 (0,0) vs. 3 (0, 10) d, 1 100 (0, 3 700) vs. 5 000 (1 000, 10 000) yuan, 1.3 (1.1, 1.9) vs. 2.0 (1.2, 2.7) score, Z=-2.89, -2.30, 2.74, 2.73, all P<0.05). Conclusion: The CCAAP-based joint management model of asthma control is superior to the traditional management model in the following aspects: it can effectively improve asthma control, self-monitoring, and lung function in children; it can improve treatment adherence and caregivers' asthma awareness; and it can reduce the duration of absenteeism from school, the cost of asthma exacerbation visits, and caregiver's negative psychology.
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Affiliation(s)
- C F Zhang
- Department of Pediatric Respiratory Medicine, Guangzhou Women and Children's Medical Center, Guangzhou 510120, China
| | - Y Gao
- Department of Pediatric Respiratory Medicine, Guangzhou Women and Children's Medical Center, Guangzhou 510120, China
| | - Y Qin
- Department of Pediatric Respiratory Medicine, Guangzhou Women and Children's Medical Center, Guangzhou 510120, China
| | - X Y Hu
- Department of Pediatric Respiratory Medicine, Guangzhou Women and Children's Medical Center, Guangzhou 510120, China
| | - J N Lu
- Department of Pediatric Respiratory Medicine, Guangzhou Women and Children's Medical Center, Guangzhou 510120, China
| | - S J Zhao
- Department of Pediatric Respiratory Medicine, Guangzhou Women and Children's Medical Center, Guangzhou 510120, China
| | - W C Lin
- Department of Pediatric Respiratory Medicine, Guangzhou Women and Children's Medical Center, Guangzhou 510120, China
| | - Y F Liu
- Department of Pediatric Respiratory Medicine, Guangzhou Women and Children's Medical Center, Guangzhou 510120, China
| | - G Q Yin
- Department of Pediatric Respiratory Medicine, Guangzhou Women and Children's Medical Center, Guangzhou 510120, China
| | - W H Jiang
- Department of Pediatric Respiratory Medicine, Guangzhou Women and Children's Medical Center, Guangzhou 510120, China
| | - H F Fan
- Department of Pediatric Respiratory Medicine, Guangzhou Women and Children's Medical Center, Guangzhou 510120, China
| | - L Deng
- Department of Pediatric Respiratory Medicine, Guangzhou Women and Children's Medical Center, Guangzhou 510120, China
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Wang C, Li Y, Guan Y, Yang SJ, Yin JC, Zhang CF, Guo QS, Shi WN. [Efficacy and influencing factors of immunotherapy combined with chemotherapy and bevacizumab in patients with non-small cell lung cancer after epidermal growth factor receptor tyrosine kinase inhibitors treatment failure]. Zhonghua Yi Xue Za Zhi 2023; 103:1210-1216. [PMID: 37087404 DOI: 10.3760/cma.j.cn112137-20221101-02275] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 04/24/2023]
Abstract
Objective: To investigate the efficacy and influencing factors of immunotherapy combined with chemotherapy and bevacizumab in patients with non-small cell lung cancer (NSCLC) who failed epidermal growth factor receptor tyrosine kinase inhibitors (EGFR-TKIs) treatment. Methods: A retrospective analysis was made on the clinical data of 60 NSCLC patients who were treated with immunotherapy combined with chemotherapy and bevacizumab after EGFR-TKIs treatment failure in the Affiliated Cancer Hospital of Shandong First Medical University from January 2019 to March 2022. Patients were followed up by telephone or outpatient review up to October 1, 2022, with a median follow-up of 8.2 months (95%CI: 7.1-9.3). All 60 patients were followed up. The response evaluation criteria in solid tumors were used to evaluate the short-term efficacy. The adverse reactions of patients were evaluated according to the common terminology criteria for adverse events. The survival curve was drawn by Kaplan-Meier method. Cox proportional hazard regression models were utilized to analyze the influencing factors of progression-free survival (PFS). Results: Among the 60 NSCLC patients, 22 were males. The age ranged from 41 to 75 years, with a median age of 61 years. Eleven patients had partial response, 19 patients had stable disease and 30 patients had progressive disease. The median PFS was 8.2 months (95%CI: 7.2-9.2). The median PFS of patients with low expression of programmed death receptor-ligand 1 (PD-L1) [Tumor cell Proportion Score (TPS)<1%], moderate expression of PD-L1 (1%≤TPS≤49%), and high expression of PD-L1 (TPS≥50%) were 6.4 (95%CI: 4.8-8.0), 8.3 (95%CI: 7.3-9.3) and 10.6 months (95%CI: 7.2-14.1), respectively, and there were statistically significant differences (χ2=13.58, P<0.001). Multivariate Cox proportional risk regression model analysis showed that age>65 years old (HR=4.017, 95%CI: 1.468-10.992, P=0.007) was a risk factor for PFS in NSCLC patients who received immunotherapy combined with chemotherapy and bevacizumab after EGFR-TKIs treatment failure. Moderate expression of PD-L1 (HR=0.360, 95%CI: 0.139-0.930, P=0.035) and high expression of PD-L1 (HR=0.155, 95%CI: 0.039-0.625, P=0.009) were protective factors for PFS. Most of the treatment-related adverse reactions in the whole group were grade 1-2, including bone marrow suppression (n=24), nausea (n=25), decreased appetite (n=24), fatigue (n=22), vomiting (n=18), abnormal liver function (n=17), blood creatinine increased (n=10), and so on. These were tolerated by the patients. Conclusions: NSCLC patients who failed EGFR-TKIs treatment can tolerate adverse reactions related to immunotherapy combined with chemotherapy and bevacizumab treatment. PFS is significantly prolonged in those aged≤65 years and those with moderate and high expression of PD-L1.
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Affiliation(s)
- C Wang
- Department of Oncology, Affiliated Cancer Hospital of Shandong First Medical University, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan 250117, China
| | - Y Li
- Department of Oncology, Affiliated Cancer Hospital of Shandong First Medical University, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan 250117, China
| | - Y Guan
- Department of Oncology, Affiliated Cancer Hospital of Shandong First Medical University, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan 250117, China
| | - S J Yang
- Phase Ⅰ Clinical Trial Center, Beijing Shijitan Hospital, Capital Medical University, Beijing 100038, China
| | - J C Yin
- Department of Oncology, Affiliated Cancer Hospital of Shandong First Medical University, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan 250117, China
| | - C F Zhang
- Department of Oncology, Affiliated Cancer Hospital of Shandong First Medical University, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan 250117, China
| | - Q S Guo
- Department of Oncology, Affiliated Cancer Hospital of Shandong First Medical University, Shandong First Medical University and Shandong Academy of Medical Sciences, Jinan 250117, China
| | - W N Shi
- Department of Medicine, Affiliated Cancer Hospital of Shandong First Medical University, Jinan 250117, China
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Zhang CF, Chen H, Yang CY, Song SS, Xu DZ, Zhang HL. [Dedifferentiated liposarcoma with inflammatory myofibroblastic tumor-like features originating in the rectum: report of a case]. Zhonghua Bing Li Xue Za Zhi 2023; 52:414-416. [PMID: 36973209 DOI: 10.3760/cma.j.cn112151-20220801-00666] [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: 03/29/2023]
Affiliation(s)
- C F Zhang
- Department of Pathology, the Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang 222000, China
| | - H Chen
- Department of Pathology, the Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang 222000, China
| | - C Y Yang
- Department of Pathology, the Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang 222000, China
| | - S S Song
- Department of Pathology, the Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang 222000, China
| | - D Z Xu
- Department of Gastroenterology, the Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang 222000, China
| | - H L Zhang
- Department of Pathology, the Affiliated Lianyungang Hospital of Xuzhou Medical University, Lianyungang 222000, China
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Zhang HL, Yang CY, Li SQ, Zhang CF, Zhao YG, Zhang C, Chen H. [Transformation of breast micropapillary ductal carcinoma in situ into invasive micropapillary carcinoma after recurrence in chest wall: report of a case]. Zhonghua Bing Li Xue Za Zhi 2023; 52:175-177. [PMID: 36748142 DOI: 10.3760/cma.j.cn112151-20221003-00829] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Affiliation(s)
- H L Zhang
- Department of Pathology, the First People's Hospital of Lianyungang, Lianyungang 222002, China
| | - C Y Yang
- Department of Pathology, the First People's Hospital of Lianyungang, Lianyungang 222002, China
| | - S Q Li
- Department of Thyroid and Breast Surgery, the First People's Hospital of Lianyungang, Lianyungang 222002, China
| | - C F Zhang
- Department of Pathology, the First People's Hospital of Lianyungang, Lianyungang 222002, China
| | - Y G Zhao
- Department of Pathology, the First People's Hospital of Lianyungang, Lianyungang 222002, China
| | - C Zhang
- Department of Pathology, the First People's Hospital of Lianyungang, Lianyungang 222002, China
| | - H Chen
- Department of Pathology, the First People's Hospital of Lianyungang, Lianyungang 222002, China
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Xu RZ, Gu X, Zhao WX, Zhou JS, Zhang QQ, Du X, Li YD, Mao YH, Zhao D, Huang K, Zhang CF, Wang F, Liu ZK, Chen YL, Yang LX. Development of a laser-based angle-resolved-photoemission spectrometer with sub-micrometer spatial resolution and high-efficiency spin detection. Rev Sci Instrum 2023; 94:023903. [PMID: 36859063 DOI: 10.1063/5.0106351] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/28/2022] [Accepted: 01/20/2023] [Indexed: 06/18/2023]
Abstract
Angle-resolved photoemission spectroscopy with sub-micrometer spatial resolution (μ-ARPES), has become a powerful tool for studying quantum materials. To achieve sub-micrometer or even nanometer-scale spatial resolution, it is important to focus the incident light beam (usually from synchrotron radiation) using x-ray optics, such as the zone plate or ellipsoidal capillary mirrors. Recently, we developed a laser-based μ-ARPES with spin-resolution (LMS-ARPES). The 177 nm laser beam is achieved by frequency-doubling a 355 nm beam using a KBBF crystal and subsequently focused using an optical lens with a focal length of about 16 mm. By characterizing the focused spot size using different methods and performing spatial-scanning photoemission measurement, we confirm the sub-micron spatial resolution of the system. Compared with the μ-ARPES facilities based on the synchrotron radiation, our LMS-ARPES system is not only more economical and convenient, but also with higher photon flux (>5 × 1013 photons/s), thus enabling the high-resolution and high-statistics measurements. Moreover, the system is equipped with a two-dimensional spin detector based on exchange scattering at a surface-passivated iron film grown on a W(100) substrate. We investigate the spin structure of the prototype topological insulator Bi2Se3 and reveal a high spin-polarization rate, confirming its spin-momentum locking property. This lab-based LMS-ARPES will be a powerful research tool for studying the local fine electronic structures of different condensed matter systems, including topological quantum materials, mesoscopic materials and structures, and phase-separated materials.
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Affiliation(s)
- R Z Xu
- State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084, China
| | - X Gu
- State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084, China
| | - W X Zhao
- State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084, China
| | - J S Zhou
- State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084, China
| | - Q Q Zhang
- State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084, China
| | - X Du
- State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084, China
| | - Y D Li
- State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084, China
| | - Y H Mao
- College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha, Hunan 410073, China
| | - D Zhao
- Department of Optics and Optical Engineering, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - K Huang
- Department of Optics and Optical Engineering, University of Science and Technology of China, Hefei, Anhui 230026, China
| | - C F Zhang
- College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha, Hunan 410073, China
| | - F Wang
- ShanghaiTech Laboratory for Topological Physics, Shanghai 200031, China
| | - Z K Liu
- ShanghaiTech Laboratory for Topological Physics, Shanghai 200031, China
| | - Y L Chen
- ShanghaiTech Laboratory for Topological Physics, Shanghai 200031, China
| | - L X Yang
- State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing 100084, China
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Zhou SG, Wu DF, Yao H, Zhang WY, Tian FJ, Chen G, Zhang CF. REBACIN ® inhibits E6/E7 oncogenes in clearance of human papillomavirus infection. Front Oncol 2022; 12:1047222. [PMID: 36561517 PMCID: PMC9763439 DOI: 10.3389/fonc.2022.1047222] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Accepted: 11/16/2022] [Indexed: 12/12/2022] Open
Abstract
Previous studies have demonstrated that REBACIN® intervention eliminates persistent high-risk human papillomavirus (hrHPV) infection. The initial establishment and subsequent progression of cervical cancer mainly depends on two major oncogenes, E6/E7, and previous studies have proposed E6/E7 oncogenes as a target for therapeutic drug development. The aim of this study was to investigate in vitro and in vivo whether REBACIN® inhibits E6/E7 oncogenes for elucidating the mechanism of REBACIN® in the clearance of persistent hrHPV infection. In vitro, after REBACIN® treatment, the growth of both Ca Ski and HeLa cervical cancer cells containing the E6/E7 oncogenes was prevented. In line with this finding is that E6/E7 expression was inhibited, which can be counteracted by the co-application of anti-REBACIN® antibody. These studies demonstrated that REBACIN® can effectively inhibit the growth of cervical cancer cells via targeting HPV E6/E7 expression. To further verify this finding in clinic, 108 volunteer patients with persistent hrHPV infections were randomly divided into REBACIN®, recombinant human interferon alpha-2b (Immunological drug control), or no-treatment blank control groups, received intravaginal administration of REBACIN®, interferon or no-treatment every other day for three months, and then followed up for E6/E7 mRNA assay. In REBACIN® group, 68.57% of patients showed complete clearance of HPV E6/E7 mRNA, which was significantly higher compared to 25.00% in the interferon immunological drug control group and 20.00% in blank control group, confirming that REBACIN® is potently efficacious on clearing persistent hrHPV infections via inhibition of HPV E6/E7 oncogenes. Clinical trial registration http://www.chictr.org.cn/historyversionpuben.aspx?regno=ChiCTR2100045911, identifier ChiCTR2100045911.
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Affiliation(s)
- Shu-Guang Zhou
- Department of Gynecology, Anhui Medical University Affiliated Maternity and Child Healthcare Hospital, Anhui Province Maternity and Child Healthcare Hospital, Hefei, Anhui, China
| | - Dai-Fei Wu
- Division of Molecular Virology, SR Life Sciences Institute, Clarksburg, MD, United States
| | - Hui Yao
- Department of Gynecology, Anhui Medical University Affiliated Maternity and Child Healthcare Hospital, Anhui Province Maternity and Child Healthcare Hospital, Hefei, Anhui, China
| | - Wei-Yu Zhang
- Department of Gynecology, Anhui Medical University Affiliated Maternity and Child Healthcare Hospital, Anhui Province Maternity and Child Healthcare Hospital, Hefei, Anhui, China
| | - Feng-Jiao Tian
- Key Laboratory of Protein Engineering and Drug Development of Hainan, Haikou, China
| | - Guo Chen
- Department of Gynecology, Anhui Medical University Affiliated Maternity and Child Healthcare Hospital, Anhui Province Maternity and Child Healthcare Hospital, Hefei, Anhui, China,*Correspondence: Chun-Fa Zhang, ; Guo Chen,
| | - Chun-Fa Zhang
- Division of Molecular Virology, SR Life Sciences Institute, Clarksburg, MD, United States,*Correspondence: Chun-Fa Zhang, ; Guo Chen,
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Zhou YM, Sun W, Lin L, Su CH, Zhang CF, Yu L, Liu J, Wang XY, He F, Chen DJ. [Analysis of the efficacy and related influencing factors of pelvic packing in the treatment of intractable postpartum hemorrhage after emergency perinatal hysterectomy]. Zhonghua Fu Chan Ke Za Zhi 2022; 57:504-509. [PMID: 35902784 DOI: 10.3760/cma.j.cn112141-20220222-00116] [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
Objective: To investigate the effect of pelvic packing on the control of intractable postpartum hemorrhage after emergency perinatal hysterectomy (EPH). Methods: Eleven cases with complete clinical data of pelvic packing due to failure of hemostasis after EPH were collected to evaluate the outcome, complications, hospital stay of pregnant women, and to analyze the factors affecting the effect of pelvic packing. The cases included patients who were admitted to the Third Affiliated Hospital of Guangzhou Medical University after pelvic packing treatment in the other hospital due to continuous bleeding after EPH or who were referred to our hospital for pelvic packing treatment due to continuous bleeding after EPH from January 2014 to August 2021. Results: The median gestational week of 11 pregnant women was 38.3 weeks(38.0-39.9 weeks) , and the methods of termination of pregnancy were cesarean section in 7 cases (7/11) and vaginal delivery in 4 cases (4/11). The median time between postpartum hemorrhage and pelvic tamponade was 10 hours (5-57 hours), the median amount of bleeding was 8 500 ml(4 800-15 600 ml) , the median number of pelvic tamponade was 3 pieces (2-7 pieces), and the median retention time of gauze pad was 6.0 days (3.0-6.0 days). The median frequency of laparotomy in this pregnancy was 3 times (2-3 times), with a maximum of 4 among the 11 cases, the first pelvic packing was successful in hemostasis in 9 cases, and the final successful treatment in all of the 11 cases. All parturients had hemorrhagic shock (11/11) and disseminated intravascular coagulation (11/11) before pelvic packing. Other common complications were multiple organ dysfunction syndrome (9/11), cardiac arrest (4/11), deep vein thrombosis (3/11), septic shock (3/11), and intestinal obstruction (1/11). All parturients took out the gauze after the coagulation function returned to normal and there was no active bleeding. The recovery time of coagulation function in 11 cases was 3 days (3-5 days), the retention time of gauze pad was 6 days (3-6 days), the median length of stay in intensive care unit was 14 days (11-26 days), and the median total length of stay was 22 days (16-49 days). Conclusions: Pelvic packing could be used as a temporary strategy for intractable postpartum hemorrhage after EPH, which provides a key time for injury control resuscitation for patients with unstable vital signs. This technology provides an opportunity for referral to superior medical institutions and further treatment.
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Affiliation(s)
- Y M Zhou
- Department of Obstetrics and Gynecology, the Third Affiliated Hospital of Guangzhou Medical University, Key Laboratory of Obstetrics Major Diseases of Guangdong Province, Guangzhou 510150, China
| | - W Sun
- Department of Obstetrics and Gynecology, the Third Affiliated Hospital of Guangzhou Medical University, Key Laboratory of Obstetrics Major Diseases of Guangdong Province, Guangzhou 510150, China
| | - L Lin
- Department of Obstetrics and Gynecology, the Third Affiliated Hospital of Guangzhou Medical University, Key Laboratory of Obstetrics Major Diseases of Guangdong Province, Guangzhou 510150, China
| | - C H Su
- Department of Obstetrics and Gynecology, the Third Affiliated Hospital of Guangzhou Medical University, Key Laboratory of Obstetrics Major Diseases of Guangdong Province, Guangzhou 510150, China
| | - C F Zhang
- Department of Obstetrics and Gynecology, the Third Affiliated Hospital of Guangzhou Medical University, Key Laboratory of Obstetrics Major Diseases of Guangdong Province, Guangzhou 510150, China
| | - L Yu
- Department of Obstetrics and Gynecology, the Third Affiliated Hospital of Guangzhou Medical University, Key Laboratory of Obstetrics Major Diseases of Guangdong Province, Guangzhou 510150, China
| | - J Liu
- Department of Obstetrics and Gynecology, the Third Affiliated Hospital of Guangzhou Medical University, Key Laboratory of Obstetrics Major Diseases of Guangdong Province, Guangzhou 510150, China
| | - X Y Wang
- Department of Obstetrics and Gynecology, the Third Affiliated Hospital of Guangzhou Medical University, Key Laboratory of Obstetrics Major Diseases of Guangdong Province, Guangzhou 510150, China
| | - F He
- Department of Obstetrics and Gynecology, the Third Affiliated Hospital of Guangzhou Medical University, Key Laboratory of Obstetrics Major Diseases of Guangdong Province, Guangzhou 510150, China
| | - D J Chen
- Department of Obstetrics and Gynecology, the Third Affiliated Hospital of Guangzhou Medical University, Key Laboratory of Obstetrics Major Diseases of Guangdong Province, Guangzhou 510150, China
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10
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Yang N, Zhao W, Pan Y, Lyu XZ, Hao XY, Qi WA, Du L, Liu EM, Chen T, Zhang WS, Zhang CF, Zhu GN, Wang QM, Meng WB, Liang YB, Jin YH, Wang W, Xing D, Tian JH, Ma B, Wang XH, Song XP, Ge L, Yang KH, Liu XQ, Wei JM, Chen Y. [Development of a Ranking Tool for Scientificity, Transparency and Applicability of Clinical Practice Guidelines]. Zhonghua Yi Xue Za Zhi 2022; 102:1-10. [PMID: 35701091 DOI: 10.3760/cma.j.cn112137-20220219-00340] [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: 06/15/2023]
Abstract
Objective: To address the limitations of existing methods and tools for evaluating clinical practice guidelines, we aimed to develop a comprehensive instrument focusing on the three main dimensions of guideline development: scientificity, transparency, applicability. We will use it to rank the guidelines according to the scores. We abbreviated it as STAR, and its reliability, validity and usability were also tested. Methods: A multidisciplinary expert working group was set up, including methodologists, statisticians, journal editors, medical professionals, and others. Scoping review, Delphi methods and hierarchical analysis were used to determine the final checklist of STAR. Results: The new instrument contained 11 domains and 39 items. Intrinsic reliability of each domain was indicated by Cronbach's α coefficient, with a average value of 0.646. The Cohen's kappa coefficients for methodological evaluators and clinical evaluators were 0.783 and 0.618. The overall content validity index was 0.905. The R2 for the criterion validity analysis was 0.76. The average score for usability of the items was 4.6, and the mean time spent to evaluate each guideline was 20 minutes. Conclusion: The instrument has good reliability, validity and evaluating efficiency, and can be used for evaluating and ranking guidelines more comprehensively.
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Affiliation(s)
- N Yang
- Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - W Zhao
- General Editorial Office, Chinese Medical Association Publishing House, Beijing 100052, China
| | - Y Pan
- Marketing and Sales Department, Chinese Medical Association Publishing House, Beijing 100052, China
| | - X Z Lyu
- Editorial Department, Chinese Medical Journal, Chinese Medical Association Publishing House, Beijing 100052, China
| | - X Y Hao
- Editorial Department, Chinese Medical Journal (English Edition), Chinese Medical Association Publishing House, Beijing 100052, China
| | - W A Qi
- Editorial Department, British Medical Journal (Chinese Edition), Chinese Medical Association Publishing House, Beijing 100052, China
| | - L Du
- Evidence-Based Medicine Center, West China School of Medicine, West China Hospital, Sichuan University, Chengdu 610041
| | - E M Liu
- Department of Respiratory Medicine, Children's Hospital of Chongqing Medical University, Chongqing 400014
| | - T Chen
- Department of Hematology, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - W S Zhang
- Department of Obstetrics and Gynecology, Xiangya Hospital, Central South University, Changsha 410008, China
| | - C F Zhang
- Children's Hospital of Fudan University, Shanghai 201102, China
| | - G N Zhu
- Department of Dermatology, Xijing Hospital, Xi'an 710032, China
| | - Q M Wang
- Department of Medical Oncology, Henan Cancer Hospital, Zhengzhou 450008, China
| | - W B Meng
- Department of General Surgery, The First Hospital of Lanzhou University, Lanzhou 730000, China
| | - Y B Liang
- Department of Ophthalmology, The Eye Hospital of Wenzhou Medical University, Wenzhou 325027, China
| | - Y H Jin
- Center for Evidence-Based and Translational Medicine, Zhongnan Hospital of Wuhan University, Wuhan 430072, China
| | - W Wang
- Department of Urology, The Fifth People's Hospital of Shanghai, Fudan University, Shanghai 200240, China
| | - D Xing
- Department of Trauma and Orthopaedics, Peking University People's Hospital, Beijing 100044, China
| | - J H Tian
- Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - B Ma
- Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - X H Wang
- School of Public Health, Lanzhou University, Lanzhou 730000
| | - X P Song
- School of Public Health, Lanzhou University, Lanzhou 730000
| | - L Ge
- School of Public Health, Lanzhou University, Lanzhou 730000
| | - K H Yang
- Evidence-Based Medicine Center, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China
| | - X Q Liu
- Department of Infectious Diseases, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union & Peking Union Medical College, Beijing 100730
| | - J M Wei
- Chinese Medical Association Publishing House, Beijing 100052, China
| | - Yaolong Chen
- Research Unit of Evidence-Based Evaluation and Guidelines (2021RU017), Chinese Academy of Medical Sciences, School of Basic Medical Sciences, Lanzhou University, Lanzhou 730000, China Guidelines and Standards Research Center, Chinese Medical Association Publishing House, Beijing 100052, China
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11
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Gao Y, Li XZ, Zhang LJ, Hu J, Li HC, Yu ZT, Yu FL, Zhang CF. [Hot issues in robotic-assisted thoracic day surgery]. Zhonghua Yi Xue Za Zhi 2021; 101:2271-2275. [PMID: 34333941 DOI: 10.3760/cma.j.cn112137-20210510-01106] [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
The application of day surgery on thoracic surgery is just started, and the innovation of surgical robots and their application on thoracic surgery bring new opportunities to the development of thoracic day surgery. However, the clinical practice of robot-assisted thoracic day surgery (RTDS) in China still has challenges and disagreements. Based on the experience of domestic experts in the field of RTDS clinical practice, this review discussed several key points of RTDS, including the future direction of RTDS, adjusting the indications according to their own conditions for the institutions carrying out RTDS, the robot-assisted advantage of RTDS being brought into play during the operation, and the perfect post-discharge follow-up mechanism being an important guarantee for the safe development of RTDS, to promote the application progress of RTDS in China.
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Affiliation(s)
- Y Gao
- Department of Thoracic Surgery, Xiangya Hospital, Central South University,Changsha 410008, China
| | - X Z Li
- Department of Thoracic Surgery, Xiangya Hospital, Central South University,Changsha 410008, China
| | - L J Zhang
- Department of Thoracic Surgery, Sun Yat-sen University Cancer Center, Guangzhou 510060, China
| | - J Hu
- Department of Thoracic Surgery, the First Affiliated Hospital, School of Medicine, Zhejiang University,Hangzhou 310006, China
| | - H C Li
- Department of Thoracic Surgery, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine,Shanghai 200025, China
| | - Z T Yu
- Department of Thoracic Surgery, National Cancer Center/National Clinical Research Center for Cancer/Cancer Hospital and Shenzhen Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College,Shenzhen 518116, China
| | - F L Yu
- Department of Thoracic Surgery, Second Xiangya Hospital, Central South University,Changsha 410011, China
| | - C F Zhang
- Department of Thoracic Surgery, Xiangya Hospital, Central South University,Changsha 410008, China
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12
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Wang F, Liu R, Ma Y, Wu DF, Deng LH, Wang S, Wang GY, Zhang CF, Qu QX. Case Report: Noninvasive Clinical Intervention of REBACIN® on Histologic Regression of High Grade Cervical Intraepithelial Neoplasia. Front Med (Lausanne) 2021; 8:627355. [PMID: 34355000 PMCID: PMC8329360 DOI: 10.3389/fmed.2021.627355] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2020] [Accepted: 06/25/2021] [Indexed: 11/13/2022] Open
Abstract
High-risk human papillomavirus (hrHPV) persistent infection is the major cause of cervical cancer. Clinical intervention of hrHPV-associated high-grade squamous intraepithelial lesion (HSIL) is critical to prevent cervical cancer, and current treatment is surgery (an invasive therapy). However, some patients refuse to do so for an afraid of potential adverse effects on future fertility or other concerns which creates a critical need for development of non-invasive therapeutic strategies. Here, we report for the first time the cases of non-invasive intervention with REBACIN®, a proprietary antiviral biologics, in clinical treatment of HSIL. From 12,958 visiting patients assessed for eligibility, 18 HSIL-patients with cervical intraepithelial neoplasia-grade 2, positive of both diffused overexpression of p16 and high-risk HPV were enrolled in this non-invasive clinical intervention mainly due to concerns of future fertility. REBACIN® was administered intravaginally every other day for 3 months (one-course) except during menstrual period, and were followed up for 6-36 months for the examination of high-risk HPV DNA, cervical cytology, and histopathology. After one to three course treatments, most cases (16/18) displayed both the regression from HSIL (CIN2) to normal cervical cytology and clearance of high-risk HPV infection. Further studies demonstrated REBACIN® significantly suppressed HPV16 E7 oncoprotein expression in a human cervical cancer cell line, which is consistent with previous finding that REBACIN® inhibits the growth of tumors induced by expression of E6/E7 oncogenes of either HPV16 or HPV18. This report indicates REBACIN® as a novel effective non-invasive clinical intervention for HSIL-patients as well for high-risk HPV persistent infection, providing a new clinical option for the non-invasive treatment of hrHPV-associated high-grade squamous intraepithelial lesion, which is worthy of further research on clinical validation and application.
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Affiliation(s)
- Fan Wang
- Department of Obstetrics and Gynaecology, Tianjin First Central Hospital, Tianjin, China
| | - Rong Liu
- Department of Obstetrics and Gynaecology, Tianjin First Central Hospital, Tianjin, China
| | - Yan Ma
- Department of Obstetrics and Gynaecology, Tianjin First Central Hospital, Tianjin, China
| | - Dai-Fei Wu
- Department of Molecular Virology, SR Life Sciences Institute, Clarksburg, MD, United States
| | - Liu-Hong Deng
- Division of Medical Biology, Key Laboratory of Protein Engineering and Drug Development of Hainan, Haikou, China
| | - Sheng Wang
- Taizhou Antiviral Medical Research and Development Center, Taizhou, China
| | - Gui-Yu Wang
- Division of Medical Biology, Key Laboratory of Protein Engineering and Drug Development of Hainan, Haikou, China
| | - Chun-Fa Zhang
- Department of Molecular Virology, SR Life Sciences Institute, Clarksburg, MD, United States
| | - Quan-Xin Qu
- Department of Obstetrics and Gynaecology, Tianjin First Central Hospital, Tianjin, China
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13
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Abstract
Despite physiological importance of aldonic sugar acids for living organisms, little is known about metabolic pathways of these compounds. Here, we investigated the functional diversity of homologs of L-threonic acid dehydrogenase (ThrDH; UniProt ID: Q0KBC7), an enzyme composed of two NAD-binding domains (PF14833 and PF03446). Ten ThrDH homologs with different genomic context were studied; seven new enzymatic activities were identified, such as (R)-pantoate dehydrogenase, L-altronic acid dehydrogenase, 6-deoxy-L-talonate dehydrogenase, L-idonic acid dehydrogenase, D-xylonic acid dehydrogenase, D-gluconic acid dehydrogenase, and 2-hydroxy-3-oxopantoate reductase activities. Two associated metabolic pathways were identified: L-idonic acid dehydrogenase was found to be involved in the degradation of L-idonic acid through oxidation/decarboxylation in Agrobacterium radiobacter K84, while 2-hydroxy-3-oxopantoate reductase was found to participate in D-glucarate catabolism through dehydration/cleavage in Ralstonia metallidurans CH34.
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Affiliation(s)
- C F Zhang
- Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou, Guangdong, 510631, China
| | - Y P Liu
- Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou, Guangdong, 510631, China
| | - X X Wu
- Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou, Guangdong, 510631, China
| | - X S Zhang
- Institute of Ecological Science, School of Life Sciences, South China Normal University, Guangzhou, Guangdong, 510631, China.
| | - H Huang
- Guangdong Provincial Key Laboratory of Biotechnology for Plant Development, School of Life Sciences, South China Normal University, Guangzhou, Guangdong, 510631, China.
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14
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Lin L, Zhang CF, Wang P, Gao H, Guan X, Han JL, Jiang JC, Jiang P, Lee KJ, Li D, Men YP, Miao CC, Niu CH, Niu JR, Sun C, Wang BJ, Wang ZL, Xu H, Xu JL, Xu JW, Yang YH, Yang YP, Yu W, Zhang B, Zhang BB, Zhou DJ, Zhu WW, Castro-Tirado AJ, Dai ZG, Ge MY, Hu YD, Li CK, Li Y, Li Z, Liang EW, Jia SM, Querel R, Shao L, Wang FY, Wang XG, Wu XF, Xiong SL, Xu RX, Yang YS, Zhang GQ, Zhang SN, Zheng TC, Zou JH. No pulsed radio emission during a bursting phase of a Galactic magnetar. Nature 2020; 587:63-65. [PMID: 33149293 DOI: 10.1038/s41586-020-2839-y] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Accepted: 08/31/2020] [Indexed: 11/10/2022]
Abstract
Fast radio bursts (FRBs) are millisecond-duration radio transients of unknown physical origin observed at extragalactic distances1-3. It has long been speculated that magnetars are the engine powering repeating bursts from FRB sources4-13, but no convincing evidence has been collected so far14. Recently, the Galactic magnetar SRG 1935+2154 entered an active phase by emitting intense soft γ-ray bursts15. One FRB-like event with two peaks (FRB 200428) and a luminosity slightly lower than the faintest extragalactic FRBs was detected from the source, in association with a soft γ-ray/hard-X-ray flare18-21. Here we report an eight-hour targeted radio observational campaign comprising four sessions and assisted by multi-wavelength (optical and hard-X-ray) data. During the third session, 29 soft-γ-ray repeater (SGR) bursts were detected in γ-ray energies. Throughout the observing period, we detected no single dispersed pulsed emission coincident with the arrivals of SGR bursts, but unfortunately we were not observing when the FRB was detected. The non-detection places a fluence upper limit that is eight orders of magnitude lower than the fluence of FRB 200428. Our results suggest that FRB-SGR burst associations are rare. FRBs may be highly relativistic and geometrically beamed, or FRB-like events associated with SGR bursts may have narrow spectra and characteristic frequencies outside the observed band. It is also possible that the physical conditions required to achieve coherent radiation in SGR bursts are difficult to satisfy, and that only under extreme conditions could an FRB be associated with an SGR burst.
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Affiliation(s)
- L Lin
- Department of Astronomy, Beijing Normal University, Beijing, People's Republic of China
| | - C F Zhang
- Department of Astronomy, Peking University, Beijing, People's Republic of China.,National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - P Wang
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - H Gao
- Department of Astronomy, Beijing Normal University, Beijing, People's Republic of China
| | - X Guan
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - J L Han
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China.,University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - J C Jiang
- Department of Astronomy, Peking University, Beijing, People's Republic of China.,National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - P Jiang
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - K J Lee
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China. .,Kavli Institute for Astronomy and Astrophysics, Peking University, Beijing, People's Republic of China.
| | - D Li
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China. .,University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, People's Republic of China.
| | - Y P Men
- Department of Astronomy, Peking University, Beijing, People's Republic of China.,National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - C C Miao
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - C H Niu
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - J R Niu
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - C Sun
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - B J Wang
- Department of Astronomy, Peking University, Beijing, People's Republic of China.,National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Z L Wang
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - H Xu
- Department of Astronomy, Peking University, Beijing, People's Republic of China.,National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - J L Xu
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - J W Xu
- Department of Astronomy, Peking University, Beijing, People's Republic of China.,National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Y H Yang
- School of Astronomy and Space Science, Nanjing University, Nanjing, People's Republic of China
| | - Y P Yang
- South-Western Institute for Astronomy Research, Yunnan University, Kunming, People's Republic of China
| | - W Yu
- Shanghai Astronomical Observatory, Chinese Academy of Science, Shanghai, People's Republic of China
| | - B Zhang
- Department of Physics and Astronomy, University of Nevada, Las Vegas, NV, USA.
| | - B-B Zhang
- School of Astronomy and Space Science, Nanjing University, Nanjing, People's Republic of China.,Department of Physics and Astronomy, University of Nevada, Las Vegas, NV, USA.,Key Laboratory of Modern Astronomy and Astrophysics (Nanjing University), Ministry of Education, Nanjing, People's Republic of China
| | - D J Zhou
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China.,University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - W W Zhu
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - A J Castro-Tirado
- Instituto de Astrofísica de Andalucía (IAA-CSIC), Granada, Spain.,Departamento de Ingeniería de Sistemas y Automática, Escuela de Ingenierías, Universidad de Málaga, Málaga, Spain
| | - Z G Dai
- School of Astronomy and Space Science, Nanjing University, Nanjing, People's Republic of China.,Key Laboratory of Modern Astronomy and Astrophysics (Nanjing University), Ministry of Education, Nanjing, People's Republic of China
| | - M Y Ge
- Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Y D Hu
- Instituto de Astrofísica de Andalucía (IAA-CSIC), Granada, Spain.,Facultad de Ciencias, Universidad de Granada, Granada, Spain
| | - C K Li
- Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Y Li
- University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, People's Republic of China.,Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing, People's Republic of China
| | - Z Li
- Department of Astronomy, Beijing Normal University, Beijing, People's Republic of China
| | - E W Liang
- Guangxi Key Laboratory for Relativistic Astrophysics, School of Physical Science and Technology, Guangxi University, Nanning, People's Republic of China
| | - S M Jia
- Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - R Querel
- National Institute of Water and Atmospheric Research (NIWA), Lauder, New Zealand
| | - L Shao
- College of Physics, Hebei Normal University, Shijiazhuang, People's Republic of China
| | - F Y Wang
- School of Astronomy and Space Science, Nanjing University, Nanjing, People's Republic of China.,Key Laboratory of Modern Astronomy and Astrophysics (Nanjing University), Ministry of Education, Nanjing, People's Republic of China
| | - X G Wang
- Guangxi Key Laboratory for Relativistic Astrophysics, School of Physical Science and Technology, Guangxi University, Nanning, People's Republic of China
| | - X F Wu
- Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing, People's Republic of China
| | - S L Xiong
- Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - R X Xu
- Department of Astronomy, Peking University, Beijing, People's Republic of China.,Kavli Institute for Astronomy and Astrophysics, Peking University, Beijing, People's Republic of China
| | - Y-S Yang
- School of Astronomy and Space Science, Nanjing University, Nanjing, People's Republic of China
| | - G Q Zhang
- School of Astronomy and Space Science, Nanjing University, Nanjing, People's Republic of China
| | - S N Zhang
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China.,University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, People's Republic of China.,Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - T C Zheng
- Guangxi Key Laboratory for Relativistic Astrophysics, School of Physical Science and Technology, Guangxi University, Nanning, People's Republic of China
| | - J-H Zou
- College of Physics, Hebei Normal University, Shijiazhuang, People's Republic of China
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15
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Zhang CF, Wang HX, Song SS, Nie YH, Qi DX, Zhang C, Chen H. [Epithelioid inflammatory myofibroblastic sarcoma of the small intestine: report of two cases]. Zhonghua Bing Li Xue Za Zhi 2019; 48:809-811. [PMID: 31594049 DOI: 10.3760/cma.j.issn.0529-5807.2019.10.013] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- C F Zhang
- Department of Pathology, the First People's Hospital of Lianyungang, Affiliated Hospital of Xuzhou Medical University, Jiangsu Province, Lianyungang 222002, China
| | - H X Wang
- Department of Pathology, Shanghai Jiading District Central Hospital, Shanghai 201800, China
| | - S S Song
- Department of Pathology, the First People's Hospital of Lianyungang, Affiliated Hospital of Xuzhou Medical University, Jiangsu Province, Lianyungang 222002, China
| | - Y H Nie
- Department of Pathology, the First People's Hospital of Lianyungang, Affiliated Hospital of Xuzhou Medical University, Jiangsu Province, Lianyungang 222002, China
| | - D X Qi
- Department of Pathology, the First People's Hospital of Lianyungang, Affiliated Hospital of Xuzhou Medical University, Jiangsu Province, Lianyungang 222002, China
| | - C Zhang
- Department of Pathology, the First People's Hospital of Lianyungang, Affiliated Hospital of Xuzhou Medical University, Jiangsu Province, Lianyungang 222002, China
| | - H Chen
- Department of Pathology, the First People's Hospital of Lianyungang, Affiliated Hospital of Xuzhou Medical University, Jiangsu Province, Lianyungang 222002, China
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16
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Ren XY, Xu O, Shan CG, Ren XM, Dong JH, Yue LY, Zhang CF. [Nasopharyngeal low grade papillary adenocarcinoma with squamous differentiation:a case report]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2019; 33:563-564. [PMID: 31163537 DOI: 10.13201/j.issn.1001-1781.2019.06.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 06/07/2018] [Indexed: 11/12/2022]
Abstract
Summary Low grade papillary adenocarcinoma is especially rare tumor in nasopharynx. Here we reported a patient who had low grade papillary adenocarcinoma of the nasopharynx and was diagnosed by pathology. The patient complained for bilateral nasal congestion for 10 years and was hospitalized in recent 3 years. The patient received nasopharyngeal tumor resection, and the postoperative pathological examination showed low grade nasopharyngeal papillary adenocarcinoma with squamation. The patient was followed up for 9 months without recurrence or metastasis. We reported this case and reviewed the relevant literature in order to improve the diagnosis and treatment of this disease..
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Yang Y, Meng YL, Duan SM, Zhan SB, Guan RL, Yue TF, Kong LH, Zhou L, Deng LH, Huang C, Wang S, Wang GY, Wu DF, Zhang CF, Chen F. REBACIN® as a noninvasive clinical intervention for high-risk human papillomavirus persistent infection. Int J Cancer 2019; 145:2712-2719. [PMID: 30989655 DOI: 10.1002/ijc.32344] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Revised: 03/18/2019] [Accepted: 04/08/2019] [Indexed: 12/21/2022]
Abstract
The development of highly sensitive HPV-genotyping tests has opened the possibility of treating HPV-infected women before high-grade lesions appear. The lack of efficient intervention for persistent high-risk HPV infection necessitates the need for development of novel therapeutic strategy. Here we demonstrate that REBACIN®, a proprietary antiviral biologics, has shown potent efficacy in the clearance of persistent HPV infections. Two independent parallel clinical studies were investigated, which a total of 199 patients were enrolled and randomly divided into a REBACIN®-test group and a control group without treatment. The viral clearance rates for the REBACIN® groups were 61.5% (24/39) and 62.5% (35/56), respectively, for the two independent parallel studies. In contrast, the nontreatment groups showed self-clearance rates at 20.0% (8/40) and 12.5% (8/64). We further found that REBACIN® was able to significantly repress the expression of HPV E6 and E7 oncogenes in TC-1 and Hela cells. The two viral genes are well known for the development of high-grade premalignancy lesion and cervical cancer. In a mouse model, REBACIN® was indicated to notably suppress E6/E7-induced tumor growth, suggesting E6 and E7 oncogenes as a potential target of REBACIN®. Taken together, our studies shed light into the development of a novel noninvasive therapeutic intervention for clearance of persistent HPV infection with significant efficacy.
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Affiliation(s)
- Yi Yang
- Department of Obstetrics and Gynaecology, Peking Union Medical College Hospital, Beijing, China
| | - Ya-Li Meng
- Department of Obstetrics and Gynaecology, Tianjin Medical University General Hospital, Tianjin, China.,Department of Obstetrics and Gynaecology, Tianjin Port Hospital, Tianjin, China
| | - Shu-Min Duan
- National Institute for Viral Disease Control and Prevention, Beijing, China
| | - Shao-Bing Zhan
- National Institute for Viral Disease Control and Prevention, Beijing, China
| | - Ruo-Li Guan
- Department of Obstetrics and Gynaecology, Peking Union Medical College Hospital, Beijing, China
| | - Tian-Fu Yue
- Department of Obstetrics and Gynaecology, Tianjin Medical University General Hospital, Tianjin, China
| | - Ling-Hua Kong
- Department of Obstetrics and Gynaecology, Peking Union Medical College Hospital, Beijing, China
| | - Ling Zhou
- National Institute for Viral Disease Control and Prevention, Beijing, China
| | - Liu-Hong Deng
- Division of Medical Biology, Key Laboratory of Protein Engineering and Drug Development of Hainan, Haikou, Hainan, China
| | - Chao Huang
- Division of Medical Biology, Key Laboratory of Protein Engineering and Drug Development of Hainan, Haikou, Hainan, China
| | - Sheng Wang
- Division of Medical Biology, Key Laboratory of Protein Engineering and Drug Development of Hainan, Haikou, Hainan, China
| | - Gui-Yu Wang
- Division of Medical Biology, Key Laboratory of Protein Engineering and Drug Development of Hainan, Haikou, Hainan, China
| | - Dai-Fei Wu
- SR Life Sciences Institute, Clarksburg, MD
| | | | - Fei Chen
- Department of Obstetrics and Gynaecology, Peking Union Medical College Hospital, Beijing, China
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18
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Zhang CF, Liu Y, Lu M, DU XJ. [Expression of hUTP14a in non-small cell lung cancer]. Beijing Da Xue Xue Bao Yi Xue Ban 2019; 51:145-150. [PMID: 30773559 DOI: 10.19723/j.issn.1671-167x.2019.01.025] [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: 11/20/2022]
Abstract
OBJECTIVE Human U three protein 14a (hUTP14a) facilitates tumorigenesis through promoting p53 and Rb degradation as well as enhancing c-Myc oncogenic activity. Moreover, hUTP14a expression is up-regulated in human hepatocellular cancer and colorectal cancer tissues. In this study, the expression of hUTP14a in non-small cell lung cancer (NSCLC) tissues was evaluated by immunohistochemistry staining (IHC). The relationship between hUTP14a expression levels and the clinical characteristics of the NSCLC patients were analyzed. METHODS Lung cancer tissues and the adjacent non-cancerous tissues were collected from 123 cases of NSCLC patients including 53 cases of squamous cell carcinoma (SCC) and 70 cases of adenocarcinoma (ADC), who had accepted surgical resection at Peking University Third Hospital from May 2003 to April 2006. The expression level of hUTP14a was determined by IHC in human NSCLC tissues and the adjacent non-cancerous tissues. The associations between hUTP14a expression and the clinical pathological variables including gender, age, tumor size, histological type, differentiation degree and clinical pathological stage were analyzed using the Pearson's χ2 test. RESULTS The expression rate of hUTP14a in NSCLC tissues was significantly higher than that in the non-cancerous tissues (37.4% vs. 0, P<0.001). The expressions of hUTP14a in lung ADC and SCC were 48.6% and 20.6%, respectively. The expression rate of hUTP14a in both lung ADC and SCC was significantly higher than that in the adjacent non-cancerous tissues (P<0.001). In addition, the expression rate of hUTP14a in lung ADC was significantly higher than that in SCC (χ2=8.66, P=0.003). Furthermore, the expression rate of hUTP14a in the late pTNM stage of SCC was significantly higher than that in the early pTNM stage of SCC while hUTP14a expression level was not associated with pTNM stage of ADC. No correlation was found between hUTP14a expression and the other clinical pathologic features of the patients. CONCLUSION Expression of hUTP14a was up-regulated in NSCLC tissues and was correlated with pTNM stage of SCC, suggesting that hUTP14a might possess a potential as a candidate marker for the early diagnosis screening of NSCLC.
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Affiliation(s)
- C F Zhang
- Department of Medical Genetics, Peking University School of Basic Medical Sciences, Beijing 100191, China
| | - Y Liu
- Peking University Centre of Medical and Health Analysis, Beijing 100191, China
| | - M Lu
- Department of Pathology, Peking University School of Basic Medical Sciences, Beijing 100191, China
| | - X J DU
- Department of Cell Biology, Peking University School of Basic Medical Sciences, Beijing 100191, China
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Chopra H, Liao C, Zhang CF, Pow EHN. Lapine periodontal ligament stem cells for musculoskeletal research in preclinical animal trials. J Transl Med 2018; 16:174. [PMID: 29929550 PMCID: PMC6013849 DOI: 10.1186/s12967-018-1551-2] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2018] [Accepted: 06/15/2018] [Indexed: 12/13/2022] Open
Abstract
Background Human periodontal ligament stem cells (hPDLSCs) have been shown to be a reliable source of mesenchymal stem cells (MSCs). On the other hand, rabbits have been commonly used in preclinical trials for musculoskeletal research. However, there is a lack of sufficient data on using rabbit periodontal ligament stem cells (rPDLSCs) for regenerative dentistry. This study, for the first time, comprehensively compared rPDLSCs against hPDLSCs in terms of clonogenicity, growth potential, multi-differential capacity and surface antigens. Methods Periodontal ligament (PDL) was obtained from the rabbit and human teeth. rPDL and hPDL cells were isolated from PDL using enzymatic digestion method. After culturing for 2 weeks, the cells were first analyzed microscopically. STRO-1+CD146+ PDLSCs were then sorted from PDL cells by fluorescence-activated cell sorting (FACS) followed by examination of CD34, CD45, CD90, vimentin and desmin markers. The cells were also evaluated by immunohistocytochemical and multi-differentiation potential tests. The clonogenicity and growth of PDL cells were analyzed by Independent T test and 2-way repeated measures ANOVA respectively. Results rPDL cells were broader and less elongated as compared to hPDL cells. STRO-1+CD146+ hPDLSCs were isolated from hPDL cells but not from the rPDL cells. Therefore, heterogeneous population of rabbit and human PDL cells were subsequently used for latter comparative studies. FACS analysis and immunohistocytochemistry revealed that rPDL cells were partially positive for STRO-1 as compared to hPDL cells. Furthermore, both rPDL cells and hPDL cells were positive for CD146, CD90, vimentin, and desmin, while negative for CD34 and CD45. No difference in clonogenicity between rPDL and hPDL cells was found (p > 0.05). The proliferative potential of rPDL cells displayed significantly slower growth as compared to hPDL cells (p < 0.05). Osteogenic, adipogenic, and chondrogenic differentiation potential was comparatively less in rPDL cells than that of hPDL cells, but the neurogenic differential potential was similar. Conclusion Although rPDL cells manifested variable differences in expression of stem cell markers and multi-differential potential as compared to hPDL cells, they demonstrated the attributes of stemness. Further studies are also required to validate if the regenerative potential of rPDL cells is similar to rPDLSCs.
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Affiliation(s)
- H Chopra
- Discipline of Prosthodontics, Faculty of Dentistry, The University of Hong Kong, Hong Kong, SAR, China
| | - C Liao
- Discipline of Orthodontics, Faculty of Dentistry, The University of Hong Kong, Hong Kong, SAR, China
| | - C F Zhang
- Discipline of Endodontology, Faculty of Dentistry, The University of Hong Kong, Hong Kong, SAR, China
| | - E H N Pow
- Discipline of Prosthodontics, Faculty of Dentistry, The University of Hong Kong, Hong Kong, SAR, China. .,3/F, The Prince Philip Dental Hospital, 34 Hospital Road, Sai Ying Pun, Hong Kong, China.
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20
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Abstract
Low efficiency of deriving endothelial cells (ECs) from adult stem cells hampers their utilization in tissue engineering studies. The purpose of this study was to investigate whether suppression of transforming growth factor beta (TGF-β) signaling could enhance the differentiation efficiency of dental pulp-derived stem cells into ECs. We initially used vascular endothelial growth factor A (VEGF-A) to stimulate 2 dental pulp-derived stem cells (dental pulp stem cells and stem cells from human exfoliated deciduous teeth [SHED]) and compared their differentiation capacity into ECs. We further evaluated whether the vascular endothelial growth factor receptor I (VEGF-RI)-specific ligand placental growth factor-1 (PlGF-1) could mediate endothelial differentiation. Finally, we investigated whether the TGF-β signaling inhibitor SB-431542 could enhance the inductive effect of VEGF-A on endothelial differentiation, as well as the underlying mechanisms involved. ECs differentiated from dental pulp-derived stem cells exhibited the typical phenotypes of primary ECs, with SHED possessing a higher endothelial differentiation potential than dental pulp stem cells. VEGFR1-specific ligand-PLGF exerted a negligible effect on SHED-ECs differentiation. Compared with VEGF-A alone, the combination of VEGF-A and SB-431542 significantly enhanced the endothelial differentiation of SHED. The presence of SB-431542 inhibited the phosphorylation of Suppressor of Mothers Against Decapentaplegic 2/3 (SMAD2/3), allowing for VEGF-A-dependent phosphorylation and upregulation of VEGFR2. Our results indicate that the combination of VEGF-A and SB-431542 could enhance the differentiation of dental pulp-derived stem cells into endothelial cells, and this process is mediated through enhancement of VEGF-A-VEGFR2 signaling and concomitant inhibition of TGF-β-SMAD2/3 signaling.
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Affiliation(s)
- J G Xu
- 1 Endodontology, Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
| | - T Gong
- 1 Endodontology, Faculty of Dentistry, The University of Hong Kong, Hong Kong, China.,2 HKU Shenzhen Institute of Research and Innovation, Hong Kong, China
| | - Y Y Wang
- 3 Key Laboratory of Oral Diseases Research of Anhui Province, Hefei, China
| | - T Zou
- 1 Endodontology, Faculty of Dentistry, The University of Hong Kong, Hong Kong, China.,2 HKU Shenzhen Institute of Research and Innovation, Hong Kong, China
| | - B C Heng
- 1 Endodontology, Faculty of Dentistry, The University of Hong Kong, Hong Kong, China.,2 HKU Shenzhen Institute of Research and Innovation, Hong Kong, China
| | - Y Q Yang
- 4 Orthodontics, Faculty of Dentistry, The University of Hong Kong, Hong Kong, China
| | - C F Zhang
- 1 Endodontology, Faculty of Dentistry, The University of Hong Kong, Hong Kong, China.,2 HKU Shenzhen Institute of Research and Innovation, Hong Kong, China
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21
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Zhang CF, Xu R, Li MT, Zeng XF. [A clinical analysis on fever of unknown origin in in-patients with systemic lupus erythematosus]. Zhonghua Nei Ke Za Zhi 2017; 56:295-297. [PMID: 28355724 DOI: 10.3760/cma.j.issn.0578-1426.2017.04.011] [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] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
To investigate the etiology and differential diagnoses of patients with systemic lupus erythematosus (SLE) and fever of unknown origin (FUO). From January 2012 to December 2014, a total of 928 SLE patients were admitted to Peking Union Medical College Hospital.Only 50 patients were combined with FUO (5.4%). The most common reason of fever was caused by infections(33 cases, 66.0%), including bacterial infection in 17 cases with 5 tuberculosis, viral infection in 11 cases, and fungal infection in 5 cases.The second reason offever was due to poor disease control or recurrence in 17 patients (34.0%). No fever was caused by malignant tumor.When clinical data was compared between 17 non-infected patients versus 33 infected patients, C reactive protein and procalcitonin in the infected group were significantly higher than those in the non-infected group.In SLE patients combined with FUO, infection is the most common etiology which is necessary to be paid attention to.
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Affiliation(s)
- C F Zhang
- Department of Rheumatology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
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22
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Xiong LZ, Zhang CF. [Four awareness of clinical lean management]. Zhonghua Shao Shang Za Zhi 2017; 33:4-8. [PMID: 28103987 DOI: 10.3760/cma.j.issn.1009-2587.2017.01.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Along with changes of medical model, hospitals need to provide best outcome with lowest cost and best patient's experience rather than merely medical treatments. It is the cultivation of lean awareness to the doctors that could acquire such outcome. The healthcare lean awareness can be summarized as responsibility awareness, digitalized awareness, detail awareness, and outstanding awareness. Through the cultivation of lean awareness, humanism can immerse into the doctors'practice, which is conducive to train for the great masters of the medicine.
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Affiliation(s)
- L Z Xiong
- Administrative Office of Xijing Hospital, the Fourth Military Medical University, Xi'an 710032, China
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23
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Feng R, Zhang HX, Zhang HG, Zhang CF. Role of ABCB1 C1236T, G2677T, and C3435T genetic polymorphisms in the development of acute leukemia in a Chinese population. Genet Mol Res 2016; 15:gmr8546. [PMID: 27706688 DOI: 10.4238/gmr.15038546] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
We carried out a case-control study to examine the relationship between the ATP-binding cassette subfamily B member 1 (ABCB1) gene polymorphisms C1236T, G2677T, and C3435T and risk of acute leukemia in a Chinese population. Between May 2013 and April 2015, we recruited 164 acute leukemia patients and 285 healthy controls, and determined polymorphism genotypes by polymerase chain reaction-restriction fragment length polymorphism. Using unconditional logistic regression analysis, we observed that in comparison to the wild-type sequence, the TT genotype [odds ratio (OR) = 2.15, 95% confidence interval (CI) = 1.12-4.10; P = 0.01] and the T allele (OR = 1.39, 95%CI = 1.05-1.86; P = 0.02) of ABCB1 G2677T were associated with acute leukemia susceptibility. The TT genotype (OR = 2.03, 95%CI = 1.11- 3.69; P = 0.01) and the T allele (OR = 1.39, 95%CI = 1.05-1.85; P = 0.02) of the C3435T polymorphism also increased acute leukemia risk compared to the wild-type form. However, no significant relationship was established between the ABCB1 C1236T variant and this disease. Our results suggest that the ABCB1 G2677T and C3435T sequence variations may affect susceptibility to acute leukemia.
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Affiliation(s)
- R Feng
- Department of Hematology, Qilu Hospital, Shandong University, Jinan, China .,Department of Hematology, Yantai Yuhuangding Hospital, Yantai, China
| | - H X Zhang
- Department of Pharmacy, Yantai Yuhuangding Hospital, Yantai, China
| | - H G Zhang
- Department of Hematology, Qilu Hospital, Shandong University, Jinan, China.,Department of Hematology, Jining No. 1 People's Hospital, Jining, China
| | - C F Zhang
- Department of Clinical Laboratory, Jining No. 1 People's Hospital, Jining, China
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24
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Wang XX, Wang QQ, Wu JQ, Jiang M, Chen L, Zhang CF, Xiang LH. Increased expression of CXCR3 and its ligands in patients with vitiligo and CXCL10 as a potential clinical marker for vitiligo. Br J Dermatol 2016; 174:1318-26. [PMID: 26801009 DOI: 10.1111/bjd.14416] [Citation(s) in RCA: 100] [Impact Index Per Article: 12.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/19/2016] [Indexed: 01/25/2023]
Abstract
BACKGROUND Vitiligo is a skin disorder characterized by loss of melanocytes from the epidermis. A recent study reported that CXCL10 is critical for the progression and maintenance of depigmentation in a mouse model of vitiligo, but there is very limited clinical data regarding this issue and little is known about the dynamic changes or correlations with disease severity of these chemokines throughout the disease course. OBJECTIVES To present clinical data that supports and identifies the pathway of CXCR3 and its ligands in T-lymphocytic cell recruitment in vitiligo. METHODS Cytometric bead array, flow cytometry, quantitative real-time polymerase chain reaction and immunohistology were used to examine their systemic and local expression in 80 patients with vitiligo and 40 controls. RESULTS We showed that serum CXCL9 and CXCL10 were significantly elevated in patients with vitiligo and were higher in patients in progressive stages than in stable stages. The relative expression of CXCR3 mRNA in peripheral blood mononuclear cells was higher in vitiligo. There were higher percentages of both circulating CXCR3(+) CD4(+) and CXCR3(+) CD8(+) T cells in patients with progressive vitiligo compared with controls, while only the expression of CXCR3(+) CD8(+) T cells increased in patients with stable vitiligo. Histological findings also demonstrated an abundance of CXCR3(+) cells within vitiligo lesions. Furthermore, serum CXCL10 levels were associated with Vitiligo Area Scoring Index scores of patients with progressive vitiligo and were reduced after successful treatment. CONCLUSIONS The CXCL10/CXCR3 axis mediates T-cell recruitment into the skin in progressive vitiligo. Blocking this chemotactic mechanism may present a new form of therapy. Serum CXCL10 may be a novel biomarker in monitoring disease activity and guiding treatment of progressive vitiligo.
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Affiliation(s)
- X X Wang
- Department of Dermatology, Huashan Hospital, Fudan University, 12 Wulumuqi Zhong Road, Shanghai, 200040, PR China
| | - Q Q Wang
- Department of Dermatology, Huashan Hospital, Fudan University, 12 Wulumuqi Zhong Road, Shanghai, 200040, PR China
| | - J Q Wu
- Department of Dermatology, Huashan Hospital, Fudan University, 12 Wulumuqi Zhong Road, Shanghai, 200040, PR China
| | - M Jiang
- Department of Dermatology, Huashan Hospital, Fudan University, 12 Wulumuqi Zhong Road, Shanghai, 200040, PR China
| | - L Chen
- Department of Dermatology, Huashan Hospital, Fudan University, 12 Wulumuqi Zhong Road, Shanghai, 200040, PR China
| | - C F Zhang
- Department of Dermatology, Huashan Hospital, Fudan University, 12 Wulumuqi Zhong Road, Shanghai, 200040, PR China
| | - L H Xiang
- Department of Dermatology, Huashan Hospital, Fudan University, 12 Wulumuqi Zhong Road, Shanghai, 200040, PR China
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25
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Li J, Wang L, Qian C, Zhang CF, Dai LS, Liu QN, Wei GQ, Sun Y, Liu DR, Zhu BJ, Liu CL. Molecular characterization, tissue distribution, and immune reaction expression of karyopherins in the domestic silkworm (Bombyx mori). Genet Mol Res 2015; 14:13049-65. [PMID: 26535618 DOI: 10.4238/2015.october.26.1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Karyopherins, including alpha and beta types, are transport proteins in the eukaryotic cell that carry cargoes across nuclear pore complexes into or out of the nucleus. In this study, full open reading frames of one beta and three alpha types of karyopherin were cloned from cDNA of the domestic silkworm (Bombyx mori). The one beta and three alpha types' open reading frames were 2661, 1563, 1515, and 1551 base pairs long, respectively, and coded 886, 520, 504, and 516 amino acids, respectively. The alphas all had one importin-beta-binding (IBB) domain, and eight, four, or seven armadillo/beta-catenin-like repeats. The beta had 19 HEAT repeat domains, which constructed one importin-beta-N-terminal domain and one IBB domain. The recombinant proteins were expressed in Escherichia coli cells. The molecular weight of the beta type was approximately 100 kDa, and the alphas weighed approximately 60 kDa. Phylogenic tree construction revealed that the alphas could be classified into three known karyopherin-alpha subfamilies. We detected mRNA of the four karyopherins in normal 3rd day of 5th instar larvae, and in larvae injected with Gram-positive bacteria, Gram-negative bacteria, viruses, and fungi using real-time fluorescence quantitative reverse transcriptase-polymerase chain reaction, and found that the four karyopherins were widely distributed, but their expression levels were related to tissues type, the microbe injected, and the time point.
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Affiliation(s)
- J Li
- College of Life Sciences, Anhui Agricultural University, Hefei, China
| | - L Wang
- College of Life Sciences, Anhui Agricultural University, Hefei, China
| | - C Qian
- College of Life Sciences, Anhui Agricultural University, Hefei, China
| | - C F Zhang
- College of Life Sciences, Anhui Agricultural University, Hefei, China
| | - L S Dai
- College of Life Sciences, Anhui Agricultural University, Hefei, China
| | - Q N Liu
- College of Life Sciences, Anhui Agricultural University, Hefei, China
| | - G Q Wei
- College of Life Sciences, Anhui Agricultural University, Hefei, China
| | - Y Sun
- College of Life Sciences, Anhui Agricultural University, Hefei, China
| | - D R Liu
- College of Life Sciences, Anhui Agricultural University, Hefei, China
| | - B J Zhu
- College of Life Sciences, Anhui Agricultural University, Hefei, China
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Song QQ, Chai ZX, Xin JW, Zhao SJ, Ji QM, Zhang CF, Ma ZJ, Zhong JC. Genetic diversity and classification of Tibetan yak populations based on the mtDNA COIII gene. Genet Mol Res 2015; 14:1763-70. [PMID: 25867320 DOI: 10.4238/2015.march.13.3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
To determine the level of genetic diversity and phylogenetic relationships among Tibetan yak populations, the mitochondrial DNA cytochrome c oxidase subunit 3 (COIII) genes of 378 yak individuals from 16 populations were analyzed in this study. The results showed that the length of cytochrome c oxidase subunit 3 gene sequences was 781 bp, with nucleotide frequencies of 29.2, 29.4, 26.1, and 15.2% for T, C, A, and G, respectively. A total of 26 haplotypes were identified, with 69 polymorphic sites, including 11 parsimony-informative sites and 58 single-nucleotide polymorphism sites. No deletions/insertions were found in sequence comparison, indicating that nucleotide mutation types were transitions and transversions. Haplotype and nucleotide diversities were 0.562 and 0.00138, respectively, indicating a high level of genetic diversity in Tibetan yak populations. Phylogenetic relationship analysis indicated that Tibetan yak populations are divided into 2 groups.
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Affiliation(s)
- Q Q Song
- Key Laboratory of Animal Genetics and Breeding, State Ethnic Affairs Commission and Ministry of Education, Southwest University for Nationalities, Chengdu, China
| | - Z X Chai
- Key Laboratory of Animal Genetics and Breeding, State Ethnic Affairs Commission and Ministry of Education, Southwest University for Nationalities, Chengdu, China
| | - J W Xin
- Institute of Animal Science and Veterinary, Tibet Academy of Agricultural and Animal Husbandry Sciences, Lhasa, China
| | - S J Zhao
- Key Laboratory of Animal Genetics and Breeding, State Ethnic Affairs Commission and Ministry of Education, Southwest University for Nationalities, Chengdu, China
| | - Q M Ji
- Institute of Animal Science and Veterinary, Tibet Academy of Agricultural and Animal Husbandry Sciences, Lhasa, China
| | - C F Zhang
- Institute of Animal Science and Veterinary, Tibet Academy of Agricultural and Animal Husbandry Sciences, Lhasa, China
| | - Z J Ma
- Institute of Animal Science, Qinghai Academy of Animal Science and Veterinary Medicine, Xining, China
| | - J C Zhong
- Key Laboratory of Animal Genetics and Breeding, State Ethnic Affairs Commission and Ministry of Education, Southwest University for Nationalities, Chengdu, China
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Dong ZJ, Su SY, Zhu WB, Zhang CF, Ding M, Chen WX, Yuan XH, Xie Z. Polymorphism analysis of the intron one of insulin-like growth factor 2 receptor gene (IGF2R) in FFRC strain common carp (Cyprinus carpio L.) and its relationship with growth performance. Genet Mol Res 2015; 14:407-18. [PMID: 25729973 DOI: 10.4238/2015.january.23.14] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The insulin-like growth factor 2 receptor gene (IGF2R) encodes a transmembrane protein receptor and acts to sequester and degrade excess circulating insulin-like growth factor 2, which is critical for normal mammalian growth and development. Thus, IGF2R may serve as a candidate gene underlying growth trait in the common carp. In this study, we isolated the intron one of common carp IGF2R and detected the diversity in 3 continuous generations of FFRC strain common carp. A total of 8 loci were detected within this region, which were named in accordance with their location (i.e., Loc84, Loc106, Loc119, Loc130, Loc145, Loc163, Loc167, and Loc265). Loc106, Loc119, and Loc145 were moderately polymorphic; while Loc84, Loc130, Loc163, Loc167, and Loc265 exhibited slight level of polymorphism. However, significant differences between polymorphism information content values were not observed among the different generations. For Loc145, all generations deviated from Hardy-Weinberg equilibrium. The total number of significant linkage disequilibria for all generations equaled 40. Among them, 4 pairs were detected in each population, while 8 pairs were found in the 2nd and 3rd generations. For Loc130, the G/T genotype exhibited higher body weight when compared to that of the G/G genotype. The frequency of the homozygous G/G genotype reached 87.96%; thus, we can improve FFRC strain common carp growth performance by increasing the percentage of the G/T genotype within a breeding population. Therefore, the G/T genotype could be used as a molecular marker for superior growth traits.
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Affiliation(s)
- Z J Dong
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
| | - S Y Su
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, China
| | - W B Zhu
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, China
| | - C F Zhang
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, China
| | - M Ding
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, China
| | - W X Chen
- Wuxi Fisheries College, Nanjing Agricultural University, Wuxi, China
| | - X H Yuan
- Key Laboratory of Freshwater Fisheries and Germplasm Resources Utilization, Ministry of Agriculture, Freshwater Fisheries Research Center, Chinese Academy of Fishery Sciences, Wuxi, China
| | - Z Xie
- College of Animal Science and Technology, Nanjing Agricultural University, Nanjing, China
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Liu L, Li S, He XN, Huang X, Zhang CF, Fan LS, Wang MX, Zhou YS, Chen K, Jiang L, Silvain JF, Lu YF. Flame-enhanced laser-induced breakdown spectroscopy. Opt Express 2014; 22:7686-7693. [PMID: 24718144 DOI: 10.1364/oe.22.007686] [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: 06/03/2023]
Abstract
Flame-enhanced laser-induced breakdown spectroscopy (LIBS) was investigated to improve the sensitivity of LIBS. It was realized by generating laser-induced plasmas in the blue outer envelope of a neutral oxy-acetylene flame. Fast imaging and temporally resolved spectroscopy of the plasmas were carried out. Enhanced intensity of up to 4 times and narrowed full width at half maximum (FWHM) down to 60% for emission lines were observed. Electron temperatures and densities were calculated to investigate the flame effects on plasma evolution. These calculated electron temperatures and densities showed that high-temperature and low-density plasmas were achieved before 4 µs in the flame environment, which has the potential to improve LIBS sensitivity and spectral resolution.
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Li YN, Hu FL, Dai YJ, Li R, Ma XX, Du Y, Feng M, Jia Y, Zhang CF, Zhu L, Ascherman DP, Li ZG. Serum anti-lipocalin 2 IgG is a novel biomarker in the diagnosis of systemic lupus erythematosus. Lupus 2014; 23:868-75. [PMID: 24704774 DOI: 10.1177/0961203314530484] [Citation(s) in RCA: 13] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2013] [Accepted: 03/11/2014] [Indexed: 11/17/2022]
Abstract
BACKGROUND Previous work suggests that lipocalin 2 is involved in the pathogenesis of systemic lupus erythematosus (SLE) and that this novel antigen could serve as a high-quality renal biomarker of acute kidney injury in SLE. However, serum lipocalin 2 antibody levels remain unclear. We have therefore undertaken this study to assess the level of serum IgG antibody against lipocalin 2 in different disease states and to evaluate the diagnostic value of this potential biomarker in SLE. METHODS Serum levels of anti-lipocalin IgG antibodies were measured by ELISA in 103 SLE patients, 93 rheumatoid arthritis (RA) patients, 29 primary Sjögren's syndrome (pSS) patients, 13 systemic sclerosis (SSc) patients, and 91 healthy controls. Diagnostic properties of anti-lipocalin IgG were determined by receiver-operating characteristic (ROC) curve analysis. RESULTS The level of serum anti-lipocalin IgG in patients with SLE was significantly higher than in patients with RA, pSS, SSc, or healthy controls (p < 0.05), effectively distinguishing SLE from other conditions with high sensitivity and specificity (49.5% and 90.7%, respectively). In ROC curve analysis, the area under the curve (AUC) is 0.783, with a 95% confidence interval (CI) extending from 0.729 to 0.839. Anti-lipocalin antibodies were present in 48.1% of anti-Sm-negative SLE patients, and also occurred in SLE patients lacking anti-dsDNA (52%) or anti-nucleosome antibodies (46.3%) antibodies. Finally, SLE patients with positive anti-lipocalin IgG possessed higher levels of IgA and CRP than the negative group (p < 0.05), clearly demonstrating a positive correlation between anti-lipocalin IgG and these laboratory parameters. CONCLUSIONS Anti-lipocalin 2 IgG is a promising biomarker for the diagnosis of SLE, particularly when obtained in conjunction with anti-Sm, anti-dsDNA, and anti-nucleosome antibody levels.
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Affiliation(s)
- Y N Li
- Department of Rheumatology & Immunology, Peking University People's Hospital, Beijing, China
| | - F L Hu
- Department of Rheumatology & Immunology, Peking University People's Hospital, Beijing, China
| | - Y J Dai
- Department of Rheumatology & Immunology, Peking University People's Hospital, Beijing, China
| | - R Li
- Department of Rheumatology & Immunology, Peking University People's Hospital, Beijing, China
| | - X X Ma
- Department of Rheumatology & Immunology, Peking University People's Hospital, Beijing, China
| | - Y Du
- Department of Rheumatology & Immunology, Peking University People's Hospital, Beijing, China
| | - M Feng
- Department of Rheumatology & Immunology, Peking University People's Hospital, Beijing, China
| | - Y Jia
- Department of Rheumatology & Immunology, Peking University People's Hospital, Beijing, China
| | - C F Zhang
- Clinical Epidemiology & Biostatistics, Peking University People's Hospital, Beijing, China
| | - L Zhu
- Department of Rheumatology & Immunology, Peking University People's Hospital, Beijing, China
| | - D P Ascherman
- Department of Medicine, Division of Rheumatology, University of Miami Miller School of Medicine, USA
| | - Z G Li
- Department of Rheumatology & Immunology, Peking University People's Hospital, Beijing, China
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Affiliation(s)
- J N Li
- Key Laboratory for Liquid–Solid Structural Evolution and Processing of Materials (Ministry of Education)Department of Materials Science, Shandong University, Jinan 250061, China
| | - C Z Chen
- Key Laboratory for Liquid–Solid Structural Evolution and Processing of Materials (Ministry of Education)Department of Materials Science, Shandong University, Jinan 250061, China
| | - C F Zhang
- Key Laboratory for Liquid–Solid Structural Evolution and Processing of Materials (Ministry of Education)Department of Materials Science, Shandong University, Jinan 250061, China
| | - W Li
- Key Laboratory for Liquid–Solid Structural Evolution and Processing of Materials (Ministry of Education)Department of Materials Science, Shandong University, Jinan 250061, China
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Seneviratne CJ, Yip JWY, Chang JWW, Zhang CF, Samaranayake LP. Effect of culture media and nutrients on biofilm growth kinetics of laboratory and clinical strains of Enterococcus faecalis. Arch Oral Biol 2013; 58:1327-34. [PMID: 23880095 DOI: 10.1016/j.archoralbio.2013.06.017] [Citation(s) in RCA: 47] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/21/2012] [Revised: 05/31/2013] [Accepted: 06/20/2013] [Indexed: 02/06/2023]
Abstract
OBJECTIVE Enterococcus faecalis is a bacterial pathogen that is often associated with endodontic infections. Biofilm formation is a key virulence attribute in the pathogenicity of E. faecalis. In the present study, we comprehensively examined the effect of various culture media and nutrients on the development of E. faecalis biofilms. DESIGN A reference strain and a clinical isolate of E. faecalis were used in all experiments for comparison. Commonly used liquid culture media with different nutrient compositions were used to support the development of E. faecalis biofilms in a time-dependent assay. E. faecalis biofilms were quantified by colony forming unit (CFU) and crystal violet (CV) assays. Biofilm architecture and cellular viability were evaluated by scanning electron microscopy and confocal laser scanning microscopy. RESULTS Growth kinetics evaluated by CFU and CV assays and by microscopy showed that E. faecalis biofilms reached maturity at 72h. "Pg broth" (Tryptic Soy Broth with yeast extract, hemen and vitamin K) promoted E. faecalis biofilm formation more than Brain Heart Infusion broth or Tryptic Soy Broth. Addition of 2% glucose enhanced biofilm formation. Thus, it seems that nutrients such as hemen, vitamin K and glucose are important for E. faecalis for the formation of biofilms. CONCLUSION The present study demonstrated that nutrient-rich media containing glucose enhances the formation of E. faecalis biofilms, which exhibit maturation at 72h.
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Affiliation(s)
- C J Seneviratne
- Oral Sciences, Faculty of Dentistry, National University of Singapore, Singapore.
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Cheng YD, Duan CJ, Dong S, Zhang H, Zhang SK, Wang SQ, Zhang CF. Clinical controlled comparison between lobectomy and segmental resection for patients over 70 years of age with clinical stage I non-small cell lung cancer. Eur J Surg Oncol 2012; 38:1149-55. [PMID: 22901959 DOI: 10.1016/j.ejso.2012.08.001] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2012] [Revised: 07/19/2012] [Accepted: 08/02/2012] [Indexed: 11/15/2022] Open
Abstract
AIMS The standard surgical procedure for elderly (≥ 70 years) patients with clinical stage I non-small cell lung cancer (NSCLC) was investigated. METHODS A non-randomized prospective controlled study was conducted to compare lobectomy with segmental resection for the treatment of elderly clinical stage I lung cancer patients under different pulmonary function. Perioperative indicators including time and volume of thoracic drainage, incidence of postoperative complications, locoregional recurrence rates, and 1, 3, and 5-year survival rates were analyzed. RESULTS A total of 184 patients were included in the study. Patients were classified into two groups according to pulmonary function: group 1 included 64 patients who had poor pulmonary function, with a forced expiratory volume in 1 s (FEV(1)) of less than 1.5 L, whereas group 2 consisted of 120 patients with an FEV(1) ≥ 1.5 L. The patients in group 1 had a longer postoperative mechanical ventilation time and a higher incidence rate of respiratory associated complications than those in group 2 (21.9 vs. 8.35%, p = 0.009). The local recurrence and long-term survival rates were not significantly different between lobectomy and segmental resection. Among the patients who underwent segmental resection, those who had regional lymph node dissection showed a higher 3-year and 5-year survival rate than those undergoing selected lymph node resection (77.8 vs. 51.7%, p = 0.042; 55.6 vs. 27.6%, p = 0.034), but this was not significant in lobectomy. CONCLUSIONS Segmental resection combined with regional lymph node resection could be the best choice for elderly clinical stage I NSCLC patients with FEV(1) < 1.5 L.
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Affiliation(s)
- Y D Cheng
- Department of Cardio-thoracic Surgery of Xiangya Hospital Central South University, Xiangya Road 87th, Changsha 410008, Hunan, PR China
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Zhao M, Chen H, Wang X, Yu H, Wang M, Wang J, Lan XY, Zhang CF, Zhang LZ, Guo YK, Zhang B, Hu SR. aPCR-SSCP and DNA sequencing detecting two silent SNPs at KAP8.1 gene in the cashmere goat. Mol Biol Rep 2008; 36:1387-91. [PMID: 18670906 DOI: 10.1007/s11033-008-9325-1] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/13/2008] [Accepted: 07/14/2008] [Indexed: 12/01/2022]
Abstract
Keratin-associated proteins 8.1 gene (KAP8.1) is a structural gene responsible for the cashmere. KAP8.1 protein contains high glycine and tyrosine, which concerns regulation and function of the matrix structure fiber. In this study, the polymorphism of KAP8.1 gene was detected by methods of aPCR-SSCP (asymmetric polymerase chain reaction single-strand conformation polymorphism) and DNA sequencing in 791 individuals from two breeds. The results showed that there were two mutations in this gene. The mutations were described as c.63 T>G and c.66 C>G, which would result in two synonymous mutations in KAP8.1 protein. The findings go against previous research, in which there was not polymorphism at KAP8.1 gene. The reasons might be that different cashmere breeds were detected in two studies. Further analysis of results leads us to believe that the polymorphism of KAP8.1 gene might be relevant to fiber diameter.
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Affiliation(s)
- M Zhao
- Shaanxi Key Laboratory of Molecular Biology for Agriculture, College of Animal Science and Technology, Northwest A & F University, No. 22 Xinong Road, Yangling, Shaanxi, 712100, People's Republic of China
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Abstract
With intense femtosecond laser excitation, multiphoton absorption-induced stimulated emission and laser emission in ZnO bulk crystal and nanowires have been demonstrated at room temperature. UV-stimulated emission peaks appeared in both bulk crystal and nanowires when the excitation exceeded certain thresholds, and a sharp lasing peak with a linewidth of ~0.5 nm was observed from ZnO nanowires. The emission properties were attributed to the band-edge emission of the recombination of carriers excited by two- and three-photon absorption processes in the wide-bandgap semiconductor.
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Affiliation(s)
- C F Zhang
- State Key Laboratory for Applied Surface Physics and Department of Physics, Fudan University, Shanghai, China
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Xiang X, Zu XT, Zhu S, Wei QM, Zhang CF, Sun K, Wang LM. ZnO nanoparticles embedded in sapphire fabricated by ion implantation and annealing. Nanotechnology 2006; 17:2636-2640. [PMID: 21727517 DOI: 10.1088/0957-4484/17/10/032] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
ZnO nanoparticles were fabricated in sapphire (α-Al(2)O(3) single crystal) by Zn ion implantation (48 keV) at an ion fluence of 1 × 10(17) cm(-2) and subsequent thermal annealing in a flowing oxygen atmosphere. Transmission electron microscopy (TEM) analysis revealed that metallic Zn nanoparticles of 3-10 nm in dimensions formed in the as-implanted sample and that ZnO nanoparticles of 10-12 nm in dimensions formed after annealing at 600 °C. A broad absorption band, peaked at 280 nm, appeared in the as-implanted crystal, due to surface plasma resonance (SPR) absorption of metallic Zn nanoparticles. After annealing at 600 °C, ZnO nanoparticles resulted in an exciton absorption peak at 360 nm. The photoluminescence (PL) of the as-implanted sample was very weak when using a He-Cd 325 nm line as the excitation source. However, two emission peaks appeared in the PL spectrum of ZnO nanopraticles, i.e., one ultraviolet (UV) peak at 370 nm and the other a green peak at 500 nm. The emission at 500 nm is stronger and has potential applications in green/blue light-emitting devices.
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Affiliation(s)
- X Xiang
- Department of Applied Physics, University of Electronic Science and Technology of China, Chengdu, 610054, People's Republic of China
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Dhanvantari S, Shen FS, Adams T, Snell CR, Zhang C, Mackin RB, Morris SJ, Loh YP. Disruption of a receptor-mediated mechanism for intracellular sorting of proinsulin in familial hyperproinsulinemia. Mol Endocrinol 2003; 17:1856-67. [PMID: 12829804 DOI: 10.1210/me.2002-0380] [Citation(s) in RCA: 36] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
Abstract
In familial hyperproinsulinemia, specific mutations in the proinsulin gene are linked with a profound increase in circulating plasma proinsulin levels. However, the molecular and cellular basis for this disease remains uncharacterized. Here we investigated how these mutations may disrupt the sorting signal required to target proinsulin to the secretory granules of the regulated secretory pathway, resulting in the unregulated release of proinsulin. Using a combination of molecular modeling and site-directed mutagenesis, we have identified structural molecular motifs in proinsulin that are necessary for correct sorting into secretory granules of endocrine cells. We show that membrane carboxypeptidase E (CPE), previously identified as a prohormone-sorting receptor, is essential for proinsulin sorting. This was demonstrated through short interfering RNA-mediated depletion of CPE and transfection with a dominant negative mutant of CPE in a beta-cell line. Mutant proinsulins found in familial hyperproinsulinemia failed to bind to CPE and were not sorted efficiently. These findings provide evidence that the elevation of plasma proinsulin levels found in patients with familial hyperproinsulinemia is caused by the disruption of CPE-mediated sorting of mutant proinsulins to the regulated secretory pathway.
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Affiliation(s)
- Savita Dhanvantari
- Section on Cellular Neurobiology, National Institutes of Health, Bethesda, Maryland 20892-4480, USA
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Zhang CF, Dhanvantari S, Lou H, Loh YP. Sorting of carboxypeptidase E to the regulated secretory pathway requires interaction of its transmembrane domain with lipid rafts. Biochem J 2003; 369:453-60. [PMID: 12403651 PMCID: PMC1223124 DOI: 10.1042/bj20020827] [Citation(s) in RCA: 46] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/24/2002] [Revised: 10/24/2002] [Accepted: 10/29/2002] [Indexed: 11/17/2022]
Abstract
Carboxypeptidase E (CPE) functions as a regulated secretory pathway sorting receptor for several prohormones, including pro-opiomelanocortin (POMC), proenkephalin and proinsulin. The association of CPE with lipid rafts in the trans -Golgi network and secretory granule membranes is necessary for its sorting receptor function. We now provide evidence that a domain within the C-terminal 25 residues of CPE functions as a signal for both raft association and the sorting of CPE to the regulated secretory pathway. A fusion protein containing the extracellular domain of the human interleukin-2 receptor Tac (N-Tac) and the C-terminal 25 amino acids of CPE was transfected into Neuro2A cells. This fusion protein floated in sucrose density gradients, indicating raft association, and co-localized with chromogranin A (CGA), a secretory granule marker. To define further a minimum sequence required for raft association and sorting, deletion mutants of CPE that lacked the C-terminal four or 15 residues (CPE-Delta4 and CPE-Delta15 respectively) were transfected into a clone of CPE-deficient Neuro2A cells. In contrast with full-length CPE, neither CPE-Delta4 nor CPE-Delta15 floated in sucrose density gradients. The sorting of both CPE-Delta4 and CPE-Delta15 to the regulated secretory pathway was impaired, as indicated by significantly increased basal secretion and a lack of response to stimulation. Additionally, there was a significant decrease in the co-localization of mutant CPE immunofluorescence with CGA when compared with full-length CPE. Finally, the sorting of the prohormone POMC to the regulated pathway was impaired in cells transfected with either CPE-Delta4 or CPE-Delta15. We conclude that the sorting of CPE to the regulated secretory pathway in endocrine cells is mediated by lipid rafts, and that the C-terminal four residues of CPE, i.e. Thr(431)-Leu-Asn-Phe(434), are required for raft association and sorting.
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Affiliation(s)
- Chun-Fa Zhang
- Section on Cellular Neurobiology, Laboratory of Developmental Neurobiology, National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, MD 20892-4480, USA
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Zhang CF, Sun QS, Wang ZT, Chou GX. [Studies on constituents of the leaves of Lindera aggregata (Sims) Kosterm]. Zhongguo Zhong Yao Za Zhi 2001; 26:765-7. [PMID: 12776349] [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: 03/02/2023]
Abstract
OBJECTIVE To study the antibacterial and anti-inflammatory constituents of the leaves of Lindera aggrega. METHOD Compounds were isolated by colum chromatography, and the structures were identified by spectroscopic methods. RESULT Six compounds were isolated and identified as mixture of 6-Acetyllindenanolide B-1 and B-2(I), dehydrolindestrenolide (II), hydroxylinderstrenolide (III), linderalactone (IV), kameofero (V), beta-sitosterol (VI). CONCLUSION These compounds were obtained from the leaves of Lindera aggregata for the first time.
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Affiliation(s)
- C F Zhang
- Department of TCM, Shengyang Pharmaceutical University, Shengyang 110015, Liaonin, China
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Ye JJ, Hu TS, Zhang CF, Wang ZH, Zhou WY. [Diagnosis and treatment of Sturge-Weber syndrome associated with retinal detachment]. Zhongguo Yi Xue Ke Xue Yuan Xue Bao 2001; 23:408-11. [PMID: 12940090] [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: 03/04/2023]
Abstract
OBJECTIVE To access the diagnosis and treatment of Sturge-Weber syndrome at late stage. METHODS The male patient aged 65 visited the eye clinic with presenting symptom of visual loss of the left eye for 2 months. Ocular examination disclosed a facial hemangioma with the size of 2 cm x 3 cm on the nasal side of the left upper eyelid associated with engorged bulbar conjunctival and episcleral vessels in the upper nasal quadrant. Ophthalmoscopy revealed total detachment of the retina. Esotropia was measured as 10 degrees. Intraocular pressure was 24 mmHg. Electroretinogram (ERG) demonstrated an indistinguished pattern. Posterior trans-scleral and ciliary body cryocoagulation was applied followed by external release of the subretinal fluid. RESULTS The retina became reattached with visual acuity of 0.3 and intraocular pressure was 15 mmHg of the left eye at 5 months postoperatively. Fluorescein angiographical findings were consistent with diffuse hemangioma of the choroid. Follow-up study for 6 years revealed that the retina remained attached with visual acuity of 0.8 and essentially normal electroretinogram. CONCLUSION The small facial hemangioma was the clue for the diagnosis of Sturge-Weber syndrome and cryocoagulation was the procedure of choice for the treatment of retinal detachment with favorable visual outcome.
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Affiliation(s)
- J J Ye
- Department of Ophthalmology, PUMC Hospital, CAMS and PUMC, Beijing 100730, China.
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Zhang CF, Chen SX. [Clinical study of ischemic preconditioning on isolated lung perfusion with chemotherapeutic agents in the treatment of unresectable lung cancer]. Hunan Yi Ke Da Xue Xue Bao 2001; 26:51-4. [PMID: 12536616] [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: 02/28/2023]
Abstract
OBJECTIVE To determine the effect of ischemic preconditioning on isolated lung perfusion (ILP) with chemotherapeutic agents in the treatment of unresectable lung cancer. METHODS Eight patients with unresectable cancer or metastatic sarcomas in lungs underwent isolated single lung perfusion with doxorubicin. Eight patients were randomly divided into two groups: control group (Group C) and ischemic preconditioning group(Group IP). Group C was only performed isolated lung perfusion with doxorubicin; Group IP was performed isolated lung perfusion with doxorubicin after ischemic preconditioning (in ischemic preconditioning procedure, right or left pulmonary artery was clamped for 10 minutes, then released for 15 minutes). RESULTS The mean pulmonary artery pressure (MpaP) after ILP in Group IP was much lower than that in Group C (P < 0.05). The PaO2 after ILP in Group IP was much higher than that in Group C(P < 0.01). The lung histologic examination after ILP showed that pulmonary edema, inflammatory cell infiltration, mild focal hemorrhage and alveolar disruption in Group C were significantly serious than those in Group IP, but there was no hospital death in Group C or in Group IP. The complications included hypovolemia shock and acute lung injury. Following up 2 months to 10 months, no death was observed, and the tumours diminished in various degrees or disappeared in the two groups. CONCLUSION Isolated lung perfusion with chemotherapy can be done safely and effectively in patients with unresectable lung malignancies and metastatic sarcoma in the lung, and ILP can cause lung injury, but lung ischemic preconditioning can reduce the lung injury after isolated lung perfusion.
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Affiliation(s)
- C F Zhang
- Department of Cardiothoracic Surgery, Xiangya Hospital, Central Medical University, Changsha 410008
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Zhang CF, Snell CR, Loh YP. Identification of a novel prohormone sorting signal-binding site on carboxypeptidase E, a regulated secretory pathway-sorting receptor. Mol Endocrinol 1999; 13:527-36. [PMID: 10194759 DOI: 10.1210/mend.13.4.0267] [Citation(s) in RCA: 29] [Impact Index Per Article: 1.2] [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: 11/19/2022] Open
Abstract
Sorting of the prohormone POMC to the regulated secretory pathway necessitates the binding of a sorting signal to a sorting receptor, identified as membrane carboxypeptidase E (CPE). The sorting signal, located at the N terminus of POMC consists of two acidic (Asp10, Glu14) and two hydrophobic (Leu11, Leu18) residues exposed on the surface of an amphipathic loop. In this study, molecular modeling of CPE predicted that the acidic residues in the POMC-sorting signal bind specifically to two basic residues, Arg255 and Lys260, present in a loop unique to CPE, compared with other carboxypeptidases. To test the model, these two residues on CPE were mutated to Ser or Ala, followed by baculovirus expression of the mutant CPEs in Sf9 cells. Sf9 cell membranes containing CPE mutants with either Arg255 or Lys260, or both residues substituted, showed no binding of [125I]N-POMC1-26 (which contains the POMC-sorting signal motif), proinsulin, or proenkephalin. In contrast, substitution of an Arg147 to Ala147 at a substrate-binding site, Arg259 to Ala259 and Ser202 to Pro202, in CPE did not affect the level of [125I]N-POMC1-26 binding when compared with-wild type CPE. Furthermore, mutation of the POMC-sorting signal motif (Asp10, Leu11, Glu14, Leu18) eliminated binding to wild-type CPE. These results indicate that the sorting signal of POMC, proinsulin, and proenkephalin specifically interacts with Arg255 and Lys260 at a novel binding site, independent of the active site on CPE.
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Affiliation(s)
- C F Zhang
- Section on Cellular Neurobiology, National Institute of Child Health and Human Development, National Institutes of Health, Bethesda, Maryland 20892, USA
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Abstract
A C-terminally truncated form of yapsin 1 (yeast aspartic protease 3), the first member of the novel sub-class of aspartic proteases with specificity for basic residues (designated the Yapsins), was overexpressed and purified to apparent homogeneity, yielding approximately 1 microg of yapsin 1/g of wet yeast. N-terminal amino acid analysis of the purified protein confirmed that the propeptide was absent and that the mature enzyme began at Ala68. The mature enzyme was shown to be composed of approximately equimolar amounts of two subunits, designated alpha and beta, that were associated to each other by a disulfide bond. C-terminally truncated proyapsin 1 was also expressed in the baculovirus/Sf9 insect cell expression system and secreted as a zymogen that could be activated upon incubation at an acidic pH with an optimum at approximately 4.0. When expressed without its pro-region, it was localized intracellularly and lacked activity, indicating that the pro-region was required for the correct folding of the enzyme. The activation of proyapsin 1 in vitro exhibited linear kinetics and generated an intermediate form of yapsin 1 or pseudo-yapsin 1.
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Affiliation(s)
- N X Cawley
- Section on Cellular Neurobiology, Laboratory of Developmental Neurobiology, NICHD, National Institutes of Health, Bethesda, Maryland 20892,
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Zhang CF, Wang DS, Ling XZ. Diacetylamethystoidin A protects isolated working rat heart against myocardial reperfusion injury. Zhongguo Yao Li Xue Bao 1996; 17:245-8. [PMID: 9812748] [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: 02/09/2023]
Abstract
AIM To observe the effect of diacetylamethystoidin A (6 alpha, 13 beta-diacetyl-11, 15-dioxo-19-hydroxyl-kaurene, DAA-A) on myocardial ischemia reperfusion injury. METHODS Working heart mode was induced in isolated rat heart subjected to a 40-min ceasing perfusion followed by a 25-min reperfusion. RESULTS DAA-A 0.13, 0.25, 0.50 mmol.L-1 reduced the incidence of ventricular fibrillation (1, 1, 0 vs 4 in Vehicle and 5 in Control, respectively), increased the coronary flow (mL.min-1, 1.8 +/- 0.9, 1.9 +/- 0.8, 1.7 +/- 0.6 vs 1.0 +/- 0.3 in Vehicle and 0.9 +/- 0.5 in Control as reperfusion time 5 min, respectively), improved the contractile function of heart, decreased the release of lactic dehydrogenase (LDH) and malondialdehyde (MDA). DAA-A 0.25 mmol.L-1 reduced the injury of myocardial cell ultrastructure. CONCLUSION DAA-A has cardioprotective effect through diminishing cellular lipid peroxidation induced by oxygen free radicals.
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Affiliation(s)
- C F Zhang
- Department of Pharmacology, Jining Medical College, China
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Zhang CF, Lin QG, Wang Q, Cao CF. [Pulsed ND:YAG laser irradiation and 2% NaF treatment in caries-like lesion formation in enamel:an in vitro study]. Shanghai Kou Qiang Yi Xue 1996; 5:17-8. [PMID: 15160049] [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: 04/29/2023]
Abstract
The purpose of this in vitro study was to determine the combined effects of ND:YAG laser irradiation and 2% NaF on caries-like lesion formation in human enamel.There were four groups:(1)control;(2)Nd:YAG laser only;(3)2%NaF only;(4)Nd:YAG laser before 2% NaF.The result show the lesion body depths were significant differences between the control group and all treatment group,and between Nd:YAG laser before 2% NaF group and both Nd:YAG laser group and 2% NaF group(P<0.05).The surface zone depths between Nd:YAG laser before 2% NaF group and both 2% NaF group and both 2% NaF group and control group were also significantly different(P<0.05).
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Affiliation(s)
- C F Zhang
- School of Stomatology, Beijing Medical University. Beijing 100081,China
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Zhang CF, Zhang SL. [A long-term follow-up of the follow eye of unilateral wet senile macular degeneration]. Zhonghua Yan Ke Za Zhi 1994; 30:335-7. [PMID: 7805532] [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: 01/27/2023]
Abstract
The fellow eyes of 30 cases with unilateral wet age related macular degeneration (ARMD) were followed up for more than 5 years. On fundus and fluorescein angiographic examinations, it is demonstrated that a half of them showed normal fundi and the rest of them showed drusens and/or retinal pigment epithelial (RPE) changes. During the follow-up period, 4 cases developed subretinal neovascular membrane at the 5th, 6th, 10th, and 11th year, respectively. Of them, essentially normal fundi were in 2 cases, macular drusens in 1 case and RPE changes in another case at the first visit. The results indicate that the fellow eye of unilateral wet ARMD may develop subretinal neovascular membrane after a long period of time.
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Affiliation(s)
- C F Zhang
- Department of Ophthalmology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing
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Dong FT, Zhang CF, Du H. [Surgical removal of macular epiretinal membrane]. Zhonghua Yan Ke Za Zhi 1994; 30:338-40. [PMID: 7805533] [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: 01/27/2023]
Abstract
Vitreous surgery was used to remove macular epiretinal membranes in 15 eyes of 15 cases of which 7 were idiopathic and 8 secondary. In the period of postoperative follow-up, the visual acuity improved in 14 eyes (93%), in which 57% improved 3 or more than 3 lines. The visual recovery is related to the time of operation chosen. No complication was noted, except development of a paracentral scotoma in 1 eye.
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Affiliation(s)
- F T Dong
- Department of Ophthalmology, Peking Union Medical College Hospital, Beijing
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Zhang QZ, Zhang CF, Wang Q, Li JM, Ling XZ. Effects of cyproheptadine on plasma superoxide dismutase activity and malondialdehyde content in rabbits with hemorrhagic shock. Chin Med J (Engl) 1994; 107:323-5. [PMID: 7924569] [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: 01/27/2023] Open
Abstract
Profound hemorrhagic shock was produced in thirty rabbits by exsanguination via the carotid artery until blood pressure (BP) reached 5.3 kPa (40 mmHg) and was sustained for a period of 90 minutes. The rabbits were equally divided into cyproheptadine (Cyp) treated group and control group. Blood samples 30 minutes after liquid and blood infusion and administration of Cyp (10 mg/kg) were collected from the carotid artery, and the plasma superoxide dismutase (SOD) activity and malondialdehyde (MDA) content measured. The results showed that Cyp remarkably enhanced the plasma SOD activity (2462 +/- 338 vs 1955 +/- 596, P < 0.01) and reduced MDA content (2.68 +/- 0.24 vs 3.20 +/- 0.49, P < 0.01). We believe that the increase of O2 production plays an important role in the development of shock, the single blood and liquid infusion can not significantly improve the shock conditions. Scavenging oxygen free radicals and alleviating cellular damage and multiple organ failure are the possible mechanisms of cyproheptadine anti-shock effect.
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Affiliation(s)
- Q Z Zhang
- Department of Pharmacology, Jining Medical College
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Zhang QZ, Wang Q, Zhang CF, Ling XZ, Liu WY, Jin LY. Effects of cyproheptadine on TXB2 and 6-keto-PGF1 alpha plasma levels in rabbits with hemorrhagic shock. Zhongguo Yao Li Xue Bao 1994; 15:226-8. [PMID: 7976376] [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: 01/28/2023]
Abstract
Profound hemorrhagic shock was produced in 26 rabbits by exsanguination via carotid artery until blood pressure (BP) = 5.3 kPa (40 mmHg) for a period of 90 min. Rabbits were equally divided into a cyproheptadine (Cyp) treated group and a control group. The blood samples before and 90 min after shock and 30 min after liquid and blood infusion and administering Cyp (10 mg.kg-1) were collected from the carotid artery. With radioimmunoassay, we measured the thromboxane B2(TXB2) and 6-ketoprostaglandin F1 alpha (6-keto-PGF1 alpha) contents in plasma. The results indicated that the TXB2 and 6-keto-PGF1 alpha levels during shock (1024 +/- 924, 30 +/- 32) and after liquid and blood infusion (990 +/- 943, 60 +/- 54) were higher than those (221 +/- 134, 6 +/- 4) in normal rabbits (P < 0.01, P < 0.05). Cyp reduced obviously the TXA2 plasma level in rabbit with shock (304 +/- 299 vs 990 +/- 943, P < 0.05). We conclude that the decrease of TXB2 content is one of the possible mechanisms of cyproheptadine anti-shock effect.
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Affiliation(s)
- Q Z Zhang
- Department of Pharmacology, Ji-ning Medical College, China
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Zhang CF, Fei PF, Dong FT, Du H, Sun YM. Endolaser photocoagulation after vitrectomy on rabbit's eyes. Chin Med J (Engl) 1993; 106:538-41. [PMID: 8243127] [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: 01/29/2023] Open
Abstract
Ophthalmoscopic and histopathologic studies of endolaser photocoagulation after vitrectomy were carried out on rabbit's eyes. The endoprobe was connected to the Coherent "Novus 2,000" argon laser system. Under appropriate application the grayish white retinal lesions produced by argon green and argon all wavelength endolaser photocoagulation were similar ophthalmoscopically at a treatment power of 80-100 mw and exposure duration of 0.2s. Histopathologically, the characteristic changes of the retinal lesions produced by argon all wave-length were more significant than that produced by argon green endolaser photocoagulation. Scattered retinal photocoagulation can be done when the opaque medium is cleared on the operating table.
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Affiliation(s)
- C F Zhang
- Department of Ophthalmology, PUMC Hospital, Chinese Academy of Medical Sciences, Beijing
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Shi SG, Guan OY, Zhang CF. Preliminary study of electromyographic characteristics for distinguishing centric relation and protrusion in edentulous patients. J Prosthet Dent 1993; 69:171-5. [PMID: 8429510 DOI: 10.1016/0022-3913(93)90137-d] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
The mean voltages of the masseter and anterior temporal muscles of 30 Chinese edentulous patients were recorded in centric relation and protrusive positions (from 1 mm to 4 mm anterior to centric relation) under two given occlusal force conditions. It was found that the mean ratio of individual voltages of the anterior temporal muscles to the masseter muscles was equal to or greater than 1.2 in centric relation, but the ratio was less than 1.2 in protrusive positions in most of the subjects. The results demonstrated that the ratio of voltages of the anterior temporal muscles to masseter muscles may be a reliable parameter for distinguishing centric relation from protrusion in Chinese edentulous patients.
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Affiliation(s)
- S G Shi
- Department of Prosthodontics, College of Stomatology, Fourth Military Medical University, Xi'an, China
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