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Song ZK, Zhao L, Liu DS, Zhao LN, Peng QB, Li ZY, Wu JY, Chen SK, Huang FZ, Chen X, Lin TX, Guan L, Meng WP, Guo JW, Su YN, He XX, Liang SJ, Zhu P, Zheng SY, Du SL, Liu X. Macrophage KLF15 prevents foam cell formation and atherosclerosis via transcriptional suppression of OLR-1. J Mol Cell Cardiol 2024; 186:57-70. [PMID: 37984156 DOI: 10.1016/j.yjmcc.2023.11.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/17/2023] [Revised: 11/09/2023] [Accepted: 11/12/2023] [Indexed: 11/22/2023]
Abstract
BACKGROUND Macrophage-derived foam cells are a hallmark of atherosclerosis. Scavenger receptors, including lectin-like oxidized low-density lipoprotein (LDL) receptor-1 (OLR-1), are the principal receptors responsible for the uptake and modification of LDL, facilitating macrophage lipid load and the uptake of oxidized LDL by arterial wall cells. Krüppel-like factor 15 (KLF15) is a transcription factor that regulates the expression of genes by binding to the promoter during transcription. Therefore, this study aimed to investigate the precise role of macrophage KLF15 in atherogenesis. METHODS We used two murine models of atherosclerosis: mice injected with an adeno-associated virus (AAV) encoding the Asp374-to-Tyr mutant version of human PCSK9, followed by 12 weeks on a high-fat diet (HFD), and ApoE-/-- mice on a HFD. We subsequently injected mice with AAV-KLF15 and AAV-LacZ to assess the role of KLF15 in the development of atherosclerosis in vivo. Oil Red O, H&E, and Masson's trichome staining were used to evaluate atherosclerotic lesions. Western blots and RT-qPCR were used to assess protein and mRNA levels, respectively. RESULTS We determined that KLF15 expression was downregulated during atherosclerosis formation, and KLF15 overexpression prevented atherosclerosis progression. KLF15 expression levels did not affect body weight or serum lipid levels in mice. However, KLF15 overexpression in macrophages prevented foam cell formation by reducing OLR-1-meditated lipid uptake. KLF15 directly targeted and transcriptionally downregulated OLR-1 levels. Restoration of OLR-1 reversed the beneficial effects of KLF15 in atherosclerosis. CONCLUSION Macrophage KLF15 transcriptionally downregulated OLR-1 expression to reduce lipid uptake, thereby preventing foam cell formation and atherosclerosis. Thus, our results suggest that KLF15 is a potential therapeutic target for atherosclerosis.
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Affiliation(s)
- Zheng-Kun Song
- Department of Cardiovascular Surgery, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Li Zhao
- Department of Cardiovascular Surgery, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - De-Shen Liu
- Department of Cardiovascular Surgery, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Ling-Na Zhao
- Department of Cardiovascular Surgery, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Qin-Bao Peng
- Department of Cardiovascular Surgery, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Zi-Yao Li
- Department of Thoracic Surgery, The First Affiliated Hospital of Xinjiang Medical University, Urumqi 830000, China
| | - Jia-Yong Wu
- Department of Cardiovascular Surgery, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Si-Kai Chen
- Department of Cardiovascular Surgery, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Fang-Ze Huang
- Department of Cardiovascular Surgery, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Xing Chen
- Department of Cardiovascular Surgery, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Tian-Xiao Lin
- Department of Cardiovascular Surgery, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Li Guan
- Department of Cardiovascular Surgery, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Wei-Peng Meng
- Department of Cardiovascular Surgery, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Jia-Wei Guo
- Department of Pharmacology, School of Medicine, Yangtze University, Jingzhou 434023, China
| | - Yue-Nian Su
- Department of Rehabilitation, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Xiao-Xia He
- Department of Cardiovascular Surgery, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Si-Jia Liang
- Department of Pharmacology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou 510080, China
| | - Peng Zhu
- Department of Cardiovascular Surgery, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - Shao-Yi Zheng
- Department of Cardiovascular Surgery, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China.
| | - Song-Lin Du
- Department of Cardiovascular Surgery, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China.
| | - Xiu Liu
- Department of Cardiovascular Surgery, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China.
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Dai XW, Li CY, Wang NH, Chen SS, Tian LL, Zhao YF, Tao LY, Yang XY, Ding BC, He XX. [Study on the resistance of rifampicin-resistant Mycobacterium tuberculosis to anti-tuberculosis drugs in group A]. Zhonghua Jie He He Hu Xi Za Zhi 2023; 46:1110-1117. [PMID: 37914422 DOI: 10.3760/cma.j.cn112147-20230804-00046] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 11/03/2023]
Abstract
Objective: To summarize the resistance of rifampicin-resistant Mycobacterium tuberculosis to anti-tuberculosis drugs in group A. Methods: In the retrospective study, a total of 1 226 clinical isolates from suspected multidrug-resistant pulmonary tuberculosis patients in Beijing TB control system from 2016 to 2021 were identified as Mycobacterium tuberculosis (MTB) strains by MPB64 antigen detection test. Rifampicin-resistant tuberculosis (RR-TB) strains were screened by the phenotypic drug susceptibility using the proportion method. The drug susceptibilities of Levofloxacin(LFX), Moxifloxacin(MFX), Bedaquiline(BDQ) and Linezolid(LZD)were detected by the phenotypic drug susceptibility with microplate method. The drug resistance rate, drug resistance level and minimum inhibitory concentration (MIC) distribution of four anti-tuberculosis drugs in group A were analyzed. We calculated the demographic distribution of RR-TB, multidrug-resistant tuberculosis(MDR-TB), pre-extensively drug resistant tuberculosis (pre-XDR-TB), extensively drug resistant tuberculosis (XDR-TB) patients and the cross resistance of LFX and MFX, then summarized the drug-resistance spectrum of BDQ-resistant and LZD-resistant strains and the treatment outcome of RR-TB patients. Measurement data were expressed as rate or composition ratio,χ2 test was used between and within groups, and P<0.05 was considered statistically significant. Results: Among the 1 226 suspected multidrug-resistant pulmonary tuberculosis patients, the detection rates of RR/MDR/pre-XDR/XDR-TB patients were 20.8%(255/1 226), 15.2%(186/1 226), 5.7%(70/1 226), 0.5%(6/1 226), respectively. There were statistically significant differences in the distribution of patients with the four types of drug resistance in terms of age and treatment history (χ2=14.95, P=0.020;χ2=15.91, P=0.001). The drug resistance rates of LFX, MFX, BDQ and LZD in RR-TB patients were 27.5% (70/255), 27.5% (70/255), 0.4% (1/255) and 2.4% (6/255), respectively. The MICs of LFX, MFX and LZD-susceptible MTB were mainly at 0.25 mg/L, and the MIC of BDQ-susceptible MTB was mainly concentrated at 0.03 mg/L. 25.1% (64/255) of the RR MTB were resistant to both LFX and MFX, and 6 strains were resistant to LFX or MFX, showing incomplete two-way cross resistance. One BDQ-resistant strain and six LZD-resistant strains were detected. The treatment success rate of RR-TB patients was 74.4% (151/203), and there were statistically significant differences in treatment outcomes between resistant and sensitive patients on the LFX-containing treatment regimen (Fisher's exact test, P=0.012). Conclusions: The prevalence of fluoroquinolones (LFX and MFX) resistance in rifampicin-resistant MTB is very serious. LFX and MFX show incomplete bidirectional cross-resistance. BDQ and LZD have the most promising future in the treatment of MDR-TB. Improve drug-resistance testing will help to further improve the success rate of treatment.
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Affiliation(s)
- X W Dai
- Beijing Center for Diseases Prevention and Control (Beijing Center for Tuberculosis Research and Control), Beijing 100035, China
| | - C Y Li
- Beijing Center for Diseases Prevention and Control (Beijing Center for Tuberculosis Research and Control), Beijing 100035, China
| | - N H Wang
- Beijing Center for Diseases Prevention and Control (Beijing Center for Tuberculosis Research and Control), Beijing 100035, China
| | - S S Chen
- Beijing Center for Diseases Prevention and Control (Beijing Center for Tuberculosis Research and Control), Beijing 100035, China
| | - L L Tian
- Beijing Center for Diseases Prevention and Control (Beijing Center for Tuberculosis Research and Control), Beijing 100035, China
| | - Y F Zhao
- Beijing Center for Diseases Prevention and Control (Beijing Center for Tuberculosis Research and Control), Beijing 100035, China
| | - L Y Tao
- Beijing Center for Diseases Prevention and Control (Beijing Center for Tuberculosis Research and Control), Beijing 100035, China
| | - X Y Yang
- Beijing Center for Diseases Prevention and Control (Beijing Center for Tuberculosis Research and Control), Beijing 100035, China
| | - B C Ding
- Beijing Center for Diseases Prevention and Control (Beijing Center for Tuberculosis Research and Control), Beijing 100035, China
| | - X X He
- Beijing Center for Diseases Prevention and Control (Beijing Center for Tuberculosis Research and Control), Beijing 100035, China
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He XX, Wang YY, Li JN. [Mechanism and management of cancer chemotherapy-induced gastrointestinal mucosa damage]. Zhonghua Nei Ke Za Zhi 2023; 62:1353-1357. [PMID: 37935504 DOI: 10.3760/cma.j.cn112138-20221118-00867] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 11/09/2023]
Affiliation(s)
- X X He
- Department of Internal Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Y Y Wang
- Department of Oncology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - J N Li
- Department of Gastroenterology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
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Li HX, Jing YX, Chai YH, Sun XH, He XX, Xue SL, Xi YM, Ma XL. Mechanism of Procyanidin B2 in the Treatment of Chronic Myeloid Leukemia Based on Integrating Network Pharmacology and Molecular Docking. Anticancer Agents Med Chem 2023; 23:1838-1847. [PMID: 37246327 DOI: 10.2174/1871520623666230526122524] [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: 12/14/2022] [Revised: 04/08/2023] [Accepted: 05/02/2023] [Indexed: 05/30/2023]
Abstract
OBJECTIVE To study the pharmacological mechanism of procyanidin B2 (PCB2) on chronic myeloid leukemia (CML) by integrating network pharmacological methods systematically. METHODS Firstly, the potential target genes of PCB2 were predicted by the pharmacological database and analysis platform (TCMSP and Pharmmapper). Meanwhile, the relevant target genes of CML were collected from GeneCards and DisGene. Pooled data were collected to screen for common target genes. Furthermore, the above intersection genes were imported into the String website to construct a protein-protein interaction (PPI) network, and the Gene Ontology (GO) functional annotation and Kyoto Encyclopedia of Genes and Genomes (KEGG) pathway were further analyzed. Besides, molecular docking was performed to verify the possible binding conformation between PCB2 and candidate targets. Finally, MTT and RT-PCR experiments of K562 cells were performed to verify the above results of network pharmacology. RESULTS A total of 229 PCB2 target genes were retrieved, among which 186 target genes had interaction with CML. The pharmacological effects of PCB2 on CML were related to some important oncogenes and signaling pathways. The top ten core targets predicted by Network Analysis were as follows: AKT1, EGFR, ESR1, CASP3, SRC, VEGFA, HIF1A, ERBB2, MTOR, and IGF1. Molecular docking studies confirmed that hydrogen bonding was the main interaction force of PCB2 binding targets. According to the molecular docking score, the following three target proteins were most likely to bind to PCB2: VEGFA (-5.5 kcal/mol), SRC (-5.1 kcal/mol), and EGFR (-4.6 kcal/mol). After treatment of PCB2 for 24h, mRNA expression levels of VEGFA and HIF1A decreased significantly in K562 cells. CONCLUSION Through integrating network pharmacology combined with molecular docking, the study revealed the potential mechanism of PCB2 anti-chronic myeloid leukemia.
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Affiliation(s)
- Hong-Xing Li
- The First Clinical Medical College, Lanzhou University, Lanzhou, 730000, China
- Reproductive Medical Center, The First Hospital of Lanzhou University, Lanzhou, 730000, China
| | - Yuan-Xue Jing
- The First Clinical Medical College, Lanzhou University, Lanzhou, 730000, China
- Reproductive Medical Center, The First Hospital of Lanzhou University, Lanzhou, 730000, China
| | - Yi-Hong Chai
- The First Clinical Medical College, Lanzhou University, Lanzhou, 730000, China
| | - Xiao-Hong Sun
- The First Clinical Medical College, Lanzhou University, Lanzhou, 730000, China
- Reproductive Medical Center, The First Hospital of Lanzhou University, Lanzhou, 730000, China
| | - Xiao-Xia He
- The First Clinical Medical College, Lanzhou University, Lanzhou, 730000, China
- Reproductive Medical Center, The First Hospital of Lanzhou University, Lanzhou, 730000, China
| | - Shi-Long Xue
- The First Clinical Medical College, Lanzhou University, Lanzhou, 730000, China
| | - Ya-Ming Xi
- The First Clinical Medical College, Lanzhou University, Lanzhou, 730000, China
| | - Xiao-Ling Ma
- The First Clinical Medical College, Lanzhou University, Lanzhou, 730000, China
- Reproductive Medical Center, The First Hospital of Lanzhou University, Lanzhou, 730000, China
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Zhang CH, Li T, Du X, He XX, Zhou LP, Fan J, Chen C, Zhao YL, Chen W. [Analysis on characteristic of pulmonary tuberculosis cases reported in children from four provinces in China, 2019-2021]. Zhonghua Liu Xing Bing Xue Za Zhi 2022; 43:1739-1745. [PMID: 36444456 DOI: 10.3760/cma.j.cn112338-20220630-00580] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Objective: To analyze the reported characteristics of pulmonary tuberculosis (TB) in children aged 0-14 years in four provinces (municipalities), Beijing, Hubei, Chongqing and Sichuan, in China, and provide evidence for the prevention and control of pulmonary TB in children. Methods: The incidence data of childhood pulmonary TB were collected from notifiable disease and tuberculosis management information system of Chinese information system for disease control and prevention,and descriptive epidemiological methods were used to analyze the medical care seeking flow, characteristics and management inclusion of pulmonary TB cases in children. Statistical analysis and data visualization were conducted with softwares Excel 2015, R 4.1.2 and Echart 4.7.0. Results: A total of 6 811 pulmonary TB cases in children were reported in the four provinces during 2019-2021, in which 4 741 (69.6%) were clinically diagnosed and 2 070 (30.4%) were laboratory confirmed. A total of 526 medical institutions reported TB cases in children, including 356 general hospitals (67.7%, 356/526) reporting 4 706 cases, 11 infectious disease hospitals (2.1%, 11/526) reporting 836 cases and 5 children's hospitals (1.0%, 5/526) reporting 542 cases. A total of 6 249 (91.7%) local cases and 562 (8.3%) non-local cases were reported. The reported local incidence rates of TB from 2019-2021 were 6.20/100 000, 7.10/100 000 and 7.20/100 000, respectively, showing an increase trend year by year. The sex ratio of the cases were 0.98∶1(3 373∶3 438). The cases were mainly distributed in age group 10-14 years (4 887 cases, 71.8%). The cases were mainly students (5 167 cases, 75.9%). The management inclusion rates of the local cases and non-local cases were 20.60% and 2.67%, respectively. Conclusions: The main medical institutions reporting pulmonary TB cases in children were children's hospitals, infectious disease hospitals and TB special hospitals, the incidence of pulmonary TB in children in Sichuan was higher. In 2020, the inter-provincial medical seeking behavior of the pulmonary TB cases decreased significantly. The incidence rate in boys was lower than that in girls, and children aged 10-14 years were the population with high incidence of pulmonary TB. The management inclusion rate in non-local cases was lower than that in local cases.
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Affiliation(s)
- C H Zhang
- Policy Planning Department, National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - T Li
- Policy Planning Department, National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - X Du
- Policy Planning Department, National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - X X He
- Beijing Center for Disease Prevention and Control, Beijing 100013,China
| | - L P Zhou
- Hubei Provincial Center for Disease Control and Prevention, Wuhan 430079,China
| | - J Fan
- Chongqing Municipal Center for Disease Control and Prevention, Chongqing 400050, China
| | - C Chen
- Sichuan Provincial Center for Disease Control and Prevention, Chengdu 610041, China
| | - Y L Zhao
- Policy Planning Department, National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - W Chen
- Policy Planning Department, National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
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Liu L, Yu DL, Shi ZB, Zhai WY, Wu N, Gao JM, Huang ZH, Xia F, He XX, Wei YL, Zhang N, Chen WJ, Yang QW. Visible imaging system with changeable field of view on the HL-2A tokamak. Rev Sci Instrum 2022; 93:083512. [PMID: 36050059 DOI: 10.1063/5.0101643] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2022] [Accepted: 07/15/2022] [Indexed: 06/15/2023]
Abstract
A new visible imaging system characterizing a flexible optical design and delivering high resolution frames is established on the HL-2A tokamak. It features a modular configuration, consisting of a front-end imaging lens, a set of bilateral telecentric relay lenses, and a camera. To avoid the effects of plasma radiation (x and gamma-rays) and magnetic field variation on the camera, it should be away from the coils. Therefore, the length of the relay lenses determines the total size of the imaging system. The main feature of this imaging system is to realize the variation of field of view (FOV) by interchanging the front-end prime lenses or by using a zoom lens directly rather than designing the optical system afresh, which lowers the cost drastically. The primary purpose of varying FOV is to enrich the versatility of this system, i.e., focusing on a narrow FOV such as gas puff imaging or a wide FOV such as the plasma cross sections. During the HL-2A experiments, this visible imaging system is used to provide high quality pictures of the plasma-wall interaction, divertor detachment, pellet injections, and so on. The frames confirmed that a strong radiation close to the X point is correlated with the completely detached inner target.
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Affiliation(s)
- L Liu
- Southwestern Institute of Physics, Chengdu 610041, China
| | - D L Yu
- Southwestern Institute of Physics, Chengdu 610041, China
| | - Z B Shi
- Southwestern Institute of Physics, Chengdu 610041, China
| | - W Y Zhai
- Southwestern Institute of Physics, Chengdu 610041, China
| | - N Wu
- Southwestern Institute of Physics, Chengdu 610041, China
| | - J M Gao
- Southwestern Institute of Physics, Chengdu 610041, China
| | - Z H Huang
- Southwestern Institute of Physics, Chengdu 610041, China
| | - F Xia
- Southwestern Institute of Physics, Chengdu 610041, China
| | - X X He
- Southwestern Institute of Physics, Chengdu 610041, China
| | - Y L Wei
- Southwestern Institute of Physics, Chengdu 610041, China
| | - N Zhang
- Southwestern Institute of Physics, Chengdu 610041, China
| | - W J Chen
- Southwestern Institute of Physics, Chengdu 610041, China
| | - Q W Yang
- Southwestern Institute of Physics, Chengdu 610041, China
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Wang JB, Chen K, He XX, Gong YR, Yang J, Duan X, Wang YK, Yang YC, Ye RH, Jiang Y, Duan S, Xing WW. [Dynamic changes and influencing factors of HIV-1 DNA load in HIV-1 infected individuals under antiretroviral therapy]. Zhonghua Liu Xing Bing Xue Za Zhi 2022; 43:692-695. [PMID: 35589574 DOI: 10.3760/cma.j.cn112338-20211129-00922] [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 analyze the dynamic changes and influencing factors of HIV-1 DNA load in HIV-1 infected individuals under antiretroviral therapy (ART) in Dehong Dai and Jingpo autonomous prefecture, Yunnan province, and provide information support for the clinical use of HIV-1 DNA quantitative detection. Methods: The HIV infection cases in recent infection cohort from Dehong Center for Disease Control and Prevention during 2009-2018 were selected as study subjects. The dynamic curve of HIV-1 DNA load varrying with time was generated and logistic regression analysis was conducted to identify the risk factors for HIV-1 load in the recent follow up after ART and statistical analysis was performed by using SPSS 17.0. Results: Among the 113 HIV infection cases detected from the recent infection cohort, the recent HIV infection rate were 49.6%(56/113) males, sexual transmission cases and drug injection transmission cases accounted for 53.1% (60/113), 80.5% (91/113) and 19.5% (22/113), respectively. The dynamic changes curve showed that HIV-1 DNA load was relatively high (>800 copies /106 PBMCs) before ART, and droped rapidly (<400 copies /106 PBMCs) after ART for 1 year. However, HIV-1 DNA load decreased insignificantly from the second year of ART, and remained to be 269 copies/106 PBMCs after ART for 6 years. Univariable logistic regression analysis indicated that OR (95%CI) of CD8, CD4/CD8 and HIV-1 DNA load were 1.00 (1.00-1.00), 0.30 (0.09-1.05) and 1.01 (1.00-1.01), respectively. Multivariable logistic regression analysis showed that OR value of HIV-1 DNA load base was 1.00 (1.00-1.01). Conclusions: HIV-1 DNA load decreased significantly in the first year of ART, then remained stable for years. HIV-1 DNA load base was the key factor associated with the decrease of HIV-1 DNA load, the lower the HIV-1 DNA load base, the lower HIV-1 DNA load. Therefore, earlier ART can contribute to the decrease of HIV-1 DNA load.
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Affiliation(s)
- J B Wang
- Dehong Dai and Jingpo Autonomous Prefectural Center for Disease Control and Prevention, Mangshi 678400, China
| | - K Chen
- Beijing Sanroad Biological Products Company Limited,Beijing 101407, China
| | - X X He
- Beijing Engineering Technology Research Centre of Gene Sequencing and Gene Function Analysis, Beijing Engineering Research Center of Food Safety Analysis, Beijing Center for Physical & Chemical Analysis, Beijing 100089, China
| | - Y R Gong
- Dehong Dai and Jingpo Autonomous Prefectural Center for Disease Control and Prevention, Mangshi 678400, China
| | - J Yang
- Dehong Dai and Jingpo Autonomous Prefectural Center for Disease Control and Prevention, Mangshi 678400, China
| | - X Duan
- Dehong Dai and Jingpo Autonomous Prefectural Center for Disease Control and Prevention, Mangshi 678400, China
| | - Y K Wang
- Dehong Dai and Jingpo Autonomous Prefectural Center for Disease Control and Prevention, Mangshi 678400, China
| | - Y C Yang
- Dehong Dai and Jingpo Autonomous Prefectural Center for Disease Control and Prevention, Mangshi 678400, China
| | - R H Ye
- Dehong Dai and Jingpo Autonomous Prefectural Center for Disease Control and Prevention, Mangshi 678400, China
| | - Y Jiang
- National HIV/AIDS Reference Laboratory, National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - S Duan
- Dehong Dai and Jingpo Autonomous Prefectural Center for Disease Control and Prevention, Mangshi 678400, China
| | - W W Xing
- National HIV/AIDS Reference Laboratory, National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
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Yu JY, Zhu H, Wang LH, Wang QY, Zhan HW, Li JF, He XX, Xie XJ, Pan XH. [Primary cardiac angiosarcoma diagnosed by myocardial biopsy guided by intracardiac echocardiography: a case report]. Zhonghua Nei Ke Za Zhi 2022; 61:572-574. [PMID: 35488611 DOI: 10.3760/cma.j.cn112138-20210805-00532] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Affiliation(s)
- J Y Yu
- Department of Cardiology, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, China
| | - H Zhu
- Department of Cardiology, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, China
| | - L H Wang
- Department of Radiology, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, China
| | - Q Y Wang
- Department of Radiology, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, China
| | - H W Zhan
- Department of Nuclear Medicine, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, China
| | - J F Li
- Department of Pathology, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, China
| | - X X He
- Department of Medical Oncology, Second Affiliated Hospital Zhejiang University School of Medicine, Hangzhou 310009, China
| | - X J Xie
- Department of Cardiology, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, China
| | - X H Pan
- Department of Cardiology, Second Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou 310009, China
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Xu TM, Cheng XY, Yan PG, He XX, Li JN. [Clinicopathological characteristics of rectal neuroendocrine neoplasms]. Zhonghua Nei Ke Za Zhi 2021; 60:886-890. [PMID: 34551477 DOI: 10.3760/cma.j.cn112138-20210607-00402] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: Clinicopathological characteristics of neuroendocrine neoplasms are highly heterogeneous based on variable origins.Our study aims to explore the clinical features of rectal neuroendocrine neoplasm (RNEN). Methods: Patients with histologically diagnosed rectal neuroendocrine neoplasms were retrospectively analyzed between January 2012 and December 2020. Epidemiological characteristics, clinical manifestations, complete blood count, endoscopy findings, and pathological features were recorded and analyzed. T-test was used for measurement data analysis, Chi-square test was performed for classification data analysis, and Binary logistic regression was applied for analyzing risk factors of metastasis. Results: Among 172 patients, the male to female ratio was 107 to 65 with an average age of (52±12) years (16-77 years). Altered bowel habit was the most common initial symptom (58/172, 33.7%), followed by abdominal pain (36/172, 20.9%) and loss of body weight (27/172, 15.7%). One hundred and sixty-one cases were neuroendocrine tumors, 9 were neuroendocrine carcinomas and 2 were mixed neuroendocrine-non-neuroendocrine neoplasms. Most endoscopic presentations were polypoid lesions (147/172, 85.5%), mainly limited to mucosa (48/172, 27.9%) and submucosa (96/172, 55.8%). Twenty-nine patients developed lymph node invasion or distant metastasis at diagnosis. There were statistical difference of neutrophil-to-lymphocyte ratios (NLR) among groups with different tumor size (<10 mm vs. 10-20 mm vs.>20 mm, mean NLR 1.79±0.55 vs. 2.27±1.23 vs. 2.95±0.66, P<0.01. Compared with non-metastatic group, the metastatic group presented higher NLR(2.61±0.81 vs. 1.89±0.80, P<0.01). Tumor size (<10 mm vs. 10-20 mm vs.>20 mm, OR 1.00 vs. 2.10 vs. 5.25×109, P =0.001), invasion to bowel wall (mucosa vs. submucosa vs. muscularis vs. serosa invasion,OR 1.00 vs. 3.26 vs. 14.11 vs. 39.42, P=0.008), and NLR (NLR<2.25 vs. NLR≥2.25, OR 1.00 vs. 5.19, P =0.024) were risk factors for metastasis. Conclusion: Metastasis of RNEN is related with tumor size, degree of bowel invasion and NLR. High NLR is a poor prognostic factor of RNEN.
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Affiliation(s)
- T M Xu
- Department of Internal Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - X Y Cheng
- Department of Gastroenterology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - P G Yan
- Department of Internal Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - X X He
- Department of Internal Medicine, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - J N Li
- Department of Gastroenterology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
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Yin JF, Huang RW, Jiang H, Gao ZD, Xu WL, He XX, Li WM. [Spatio-temporal distribution of pulmonary tuberculosis and influencing factors in Beijing, 2008-2018]. Zhonghua Liu Xing Bing Xue Za Zhi 2021; 42:1240-1245. [PMID: 34814538 DOI: 10.3760/cma.j.cn112338-20210106-00008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To understand the spatiotemporal distribution of pulmonary tuberculosis (TB) and influencing factors in Beijing from 2008 to 2018. Methods: The incidence data of pulmonary TB in Beijing from 2008 to 2018 were from Tuberculosis Information Management System of Chinese Disease Prevention and Control Information System. Software ArcGIS 10.2 was used to visualize the spatiotemporal distribution of pulmonary TB incidence. Getis's Gi* statistic was applied to analyze the spatial clustering of pulmonary TB incidence at street/township scale. Bayesian spatiotemporal model was applied to analyze factors affecting its spatiotemporal distribution, including urbanization rate, GDP per capita, number of hospital beds per thousand population, permanent migrant population and population density. Results: The reported pulmonary TB incidence showed a downward trend in the past 11 years in Beijing, from 58.64/100 000 to 30.43/100 000. The incidences were higher in Tongzhou, Changping and other newly developed urban districts, with the hot spots concentrated in local areas of these districts. The incidences of pulmonary TB were lower in Dongcheng, Xicheng and other old urban districts-with the cold spots also concentrated in these area. The risk for the incidence of pulmonary TB was associated with the urbanization rate and the permanent migrant population. For every 1% increase in the urbanization rate, the relative risk of pulmonary TB would increase by 1%. For every 10 000 person increase of permanent migrant population, the relative risk of pulmonary TB would increase by 0.6%. Conclusions: In Beijing, the current pulmonary TB prevention and control needs to be focused on the newly developed urban areas. Due to the accelerated process of urbanization, it is necessary to strengthen TB prevention and control in permanent migrant population to reduce the incidence of TB in Beijing.
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Affiliation(s)
- J F Yin
- Beijing Chest Hospital, Capital Medical University, Beijing 101149, China
| | - R W Huang
- School of Mathematical Sciences, Beijing Normal University, Beijing 100875, China
| | - H Jiang
- Beijing Chest Hospital, Capital Medical University, Beijing 101149, China
| | - Z D Gao
- Beijing Research Institute of Tuberculosis Control, Beijing 100035, China
| | - W L Xu
- School of Statistics, Renmin University of China, Beijing 100872, China Center for Applied Statistics, Renmin University of China, Beijing 100872, China
| | - X X He
- Beijing Research Institute of Tuberculosis Control, Beijing 100035, China
| | - W M Li
- Beijing Chest Hospital, Capital Medical University, Beijing 101149, China
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11
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Cao J, Miao QL, Yang GC, Zhang H, Lin Y, Chen YX, He P, He XX, Wang Y, Shan YY, Song JM. [The role of FOXF1 and Serotonin transporter in alveolar capillary dysplasia with misalignment of pulmonary veins with differential diagnosis]. Zhonghua Bing Li Xue Za Zhi 2021; 50:811-813. [PMID: 34405622 DOI: 10.3760/cma.j.cn112151-20210329-00241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- J Cao
- Department of Pathology,Shenzhen Public Service Platform of Molecular Medicine in Pediatric Hematology and Oncology,Shenzhen Children' s Hospital, Shenzhen 518038, China
| | - Q L Miao
- Department of Pathology,Shenzhen Public Service Platform of Molecular Medicine in Pediatric Hematology and Oncology,Shenzhen Children' s Hospital, Shenzhen 518038, China
| | - G C Yang
- Department of Pathology,Shenzhen Public Service Platform of Molecular Medicine in Pediatric Hematology and Oncology,Shenzhen Children' s Hospital, Shenzhen 518038, China
| | - H Zhang
- Department of Pathology,Shenzhen Public Service Platform of Molecular Medicine in Pediatric Hematology and Oncology,Shenzhen Children' s Hospital, Shenzhen 518038, China
| | - Y Lin
- Department of Neonatology,Shenzhen Children's Hospital, Shenzhen 518038, China
| | - Y X Chen
- Department of Pathology,Shenzhen Public Service Platform of Molecular Medicine in Pediatric Hematology and Oncology,Shenzhen Children' s Hospital, Shenzhen 518038, China
| | - P He
- Department of Pathology,Shenzhen Public Service Platform of Molecular Medicine in Pediatric Hematology and Oncology,Shenzhen Children' s Hospital, Shenzhen 518038, China
| | - X X He
- Department of Pathology,Shenzhen Public Service Platform of Molecular Medicine in Pediatric Hematology and Oncology,Shenzhen Children' s Hospital, Shenzhen 518038, China
| | - Y Wang
- Department of Pathology,Shenzhen Public Service Platform of Molecular Medicine in Pediatric Hematology and Oncology,Shenzhen Children' s Hospital, Shenzhen 518038, China
| | - Y Y Shan
- Department of Pathology,Shenzhen Public Service Platform of Molecular Medicine in Pediatric Hematology and Oncology,Shenzhen Children' s Hospital, Shenzhen 518038, China
| | - J M Song
- Department of Pathology,Shenzhen Public Service Platform of Molecular Medicine in Pediatric Hematology and Oncology,Shenzhen Children' s Hospital, Shenzhen 518038, China
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Liu L, He XF, Yu DL, Shi ZB, Lu J, Xia F, Zheng DL, Zhang N, He XX, Wei YL, Zang LG, Yang ZC, Yan LW, Liu Y, Yang QW. Visible wide-angle view imaging system for the first plasma on the HL-2M tokamak. Appl Opt 2021; 60:3211-3216. [PMID: 33983221 DOI: 10.1364/ao.418903] [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] [Received: 01/07/2021] [Accepted: 03/11/2021] [Indexed: 06/12/2023]
Abstract
The wide-angle view imaging system, in terms of a tangential view diagnostic with field of view (FOV) of 56.8° and a downward-looking diagnostic from the top of the machine with FOV of 94.7°, has been newly constructed for the first plasma of the HL-2M tokamak achieved in December 2020. Its mission in this stage is to monitor the plasma evolution during its startup, sustainment, and disruption in the visible spectral range as well as the plasma-wall interaction. For the latter ultrawide view diagnostic, nearly three-quarters of the divertor region and half the area of the inner wall are in the view range. Both the diagnostics are characterized by a similar optical structure, i.e., the light emission from the plasma is collected by a front-end lens and transferred through an imaging fiber bundle to the camera. This optical structure is suitable for application in the complex tokamak environment mainly because the fiber bundle is flexible. Photos of glow discharges are acquired prior to the first plasma for testing the FOVs in the vacuum vessel. The spatial resolution is ∼4mm for the tangential view diagnostic and ∼10mm for the downward-looking diagnostic. The temporal resolutions, ranging from 90 to 360 Hz by changing the region of interest or binning acquisition mode of the color camera, are applied to record the plasma evolutions and/or dust creation events during the first plasma campaign.
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Chen B, Ma ZH, Xu B, Chang H, He XX, Pei LJ, Ren YN, Xing WG. Evaluation of seven rapid diagnostic tests for detection of hepatitis C virus antibodies in China. J Viral Hepat 2021; 28:657-663. [PMID: 33421262 DOI: 10.1111/jvh.13466] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2020] [Accepted: 12/30/2020] [Indexed: 12/25/2022]
Abstract
Rapid diagnostic tests as an attractive alternative to enzyme immunoassay could identify hepatitis C virus (HCV) infected persons more expeditiously. The availability of high performing and quality-assured rapid diagnostic tests are essential to scale-up HCV screening. The study was undertaken to evaluate the performance of seven domestic HCV rapid diagnostic tests kits. The kits were evaluated by using HCV serum panels, including HCV basic panel, analytical specificity panel, mixed titre performance panel, characteristic panel, seroconversion panel, and genotype qualification panel. The results showed that clinical sensitivity, clinical specificity and analytical specificity of seven rapid diagnostic tests kits ranged from 94% (95% CI: 83.2-98.6) to 100% (95% CI: 91.5-100). Furthermore, specimens with HCV genotypes 1b, 2a, 3a, 4a, 5a, 6 could be detected by HCV rapid diagnostic tests kits, whereas specimens with genotypes 1a and 2b could not be detected. Additionally, most HCV rapid diagnostic tests kits had great performance in diagnosing different titres and/or different bands samples, but some low S/CO value specimens may not be fully detected by few rapid diagnostic test kits. In conclusion, seven HCV rapid diagnostic tests reagents presented high sensitivity, specificity, good anti-interference and detection ability of early infection, which could meet the requirements of clinical HCV antibody screening.
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Affiliation(s)
- Bing Chen
- National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China.,Medical College, University of Chinese Academy of Sciences, Beijing, China
| | - Zhong-Hui Ma
- National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China.,Fangshan District Center for Disease Control and Prevention in Beijing, China
| | - Bing Xu
- National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Hao Chang
- National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Xiao-Xia He
- Beijing Engineering Research Center of Food Safety Analysis, Beijing Engineering Technology Research Centre of Gene Sequencing and Gene Function Analysis, Beijing Center for Physical & Chemical Analysis, Beijing, China
| | - Li-Jian Pei
- National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Ya-Nan Ren
- National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
| | - Wen-Ge Xing
- National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China
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14
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Ma XL, Ding Y, Wu LM, Wang YX, Yao Y, Wang YX, Zhang YG, Niu JQ, He XX, Wang YQ. The glucagon-like peptide-1 (GLP-1) analog exenatide ameliorates intrauterine adhesions in mice. Peptides 2021; 137:170481. [PMID: 33450323 DOI: 10.1016/j.peptides.2020.170481] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/18/2020] [Revised: 12/14/2020] [Accepted: 12/16/2020] [Indexed: 12/14/2022]
Abstract
OBJECTIVE The purpose of the experiments in this study was to explore the effect of exenatide on intrauterine adhesions (IUAs) and to elucidate its mechanism to provide new ideas for the clinical treatment of IUAs. METHODS In this study, an animal model of IUAs was established by double stimulation using mechanical curettage and inflammation. After modeling, the treatment group was injected subcutaneously with three doses of exenatide for two weeks. The model group was injected with sterile ultrapure water, and the sham operation group was treated the same as the normal group, except for the observation of abdominal wound changes. Two weeks later, all mice were sacrificed by cervical dysfunction. The obtained mouse uterine tissue was used for subsequent experimental detection, using HE and Masson staining for histomorphological and pathological analysis; qRT-PCR for the detection of TGF-β1, α-SMA, and MMP-9 gene expression in uterine tissue; and western blotting analysis of TGF-β1, α-SMA, and collagen 1 protein expression to verify whether exenatide has a therapeutic effect on IUAs in mice. RESULTS In the high-dose exenatide treatment group, the endometrial glands significantly increased in size, and the deposition area of collagen fibers in the endometrial tissue was significantly reduced. We observed that the mRNA expression of TGF-β1 and α-SMA in the endometrial tissue of IUAs mice in this group was significantly reduced, while the expression of MMP-9 was significantly increased. In addition, we found that the protein expression of TGF-β1, α-SMA, and collagen 1 remarkably decreased after treatment with exenatide. CONCLUSION Exenatide may reduce the deposition of collagen fibers in the uterus of IUAs mice and promote the proliferation of endometrial glands in mice.
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Affiliation(s)
- Xiao-Ling Ma
- The First Hospital of Lanzhou University, The First Clinical Medical College of Lanzhou University, Lanzhou, China; Gansu Key Laboratory of Reproductive Medicine and Embryo, Gansu International Scientific and Technological Cooperation Base of Reproductive Medicine Transformation Application, Lanzhou, China
| | - Yuan Ding
- The First Hospital of Lanzhou University, The First Clinical Medical College of Lanzhou University, Lanzhou, China
| | - Lu-Ming Wu
- The First Hospital of Lanzhou University, The First Clinical Medical College of Lanzhou University, Lanzhou, China
| | - Yi-Xiang Wang
- The First Hospital of Lanzhou University, The First Clinical Medical College of Lanzhou University, Lanzhou, China
| | - Ying Yao
- The First Hospital of Lanzhou University, The First Clinical Medical College of Lanzhou University, Lanzhou, China
| | - Yin-Xue Wang
- The First Hospital of Lanzhou University, The First Clinical Medical College of Lanzhou University, Lanzhou, China
| | - Yi-Gan Zhang
- The First Hospital of Lanzhou University, The First Clinical Medical College of Lanzhou University, Lanzhou, China
| | - Jun-Qiang Niu
- The First Hospital of Lanzhou University, The First Clinical Medical College of Lanzhou University, Lanzhou, China
| | - Xiao-Xia He
- The First Hospital of Lanzhou University, The First Clinical Medical College of Lanzhou University, Lanzhou, China
| | - Yi-Qing Wang
- The First Hospital of Lanzhou University, The First Clinical Medical College of Lanzhou University, Lanzhou, China; Gansu Key Laboratory of Reproductive Medicine and Embryo, Gansu International Scientific and Technological Cooperation Base of Reproductive Medicine Transformation Application, Lanzhou, China.
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Cao J, Zhang M, Yang GC, Zhang H, He XX, Wang Y, Miao QL, Chen YX, He P, Shan YY, Song JM, Han AJ. [Melanotic neuroectodermal tumor of infancy: a clinicopathological study of three cases]. Zhonghua Bing Li Xue Za Zhi 2021; 50:131-133. [PMID: 33535309 DOI: 10.3760/cma.j.cn112151-20200506-00361] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- J Cao
- Department of Pathology, Shenzhen Children' s Hospital, Shenzhen 518038, China
| | - M Zhang
- Department of Pediatrics, Shenzhen Children' s Hospital, Shenzhen 518038, China
| | - G C Yang
- Department of Pathology, Shenzhen Children' s Hospital, Shenzhen 518038, China
| | - H Zhang
- Department of Pathology, Shenzhen Children' s Hospital, Shenzhen 518038, China
| | - X X He
- Department of Pathology, Shenzhen Children' s Hospital, Shenzhen 518038, China
| | - Y Wang
- Department of Pathology, Shenzhen Children' s Hospital, Shenzhen 518038, China
| | - Q L Miao
- Department of Pathology, Shenzhen Children' s Hospital, Shenzhen 518038, China
| | - Y X Chen
- Department of Pathology, Shenzhen Children' s Hospital, Shenzhen 518038, China
| | - P He
- Department of Pathology, Shenzhen Children' s Hospital, Shenzhen 518038, China
| | - Y Y Shan
- Department of Pathology, Shenzhen Children' s Hospital, Shenzhen 518038, China
| | - J M Song
- Department of Pathology, Shenzhen Children' s Hospital, Shenzhen 518038, China
| | - A J Han
- Department of Pathology,the First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
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He XX, Yu DL, Yan LW, Liu L, Chen WJ, Wei YL, He XF, Ma Q, Shi ZB, Liu Y, Yang QW, Xu M, Duan XR. Fast charge exchange recombination spectroscopy on HuanLiu-2A tokamak. Rev Sci Instrum 2020; 91:053504. [PMID: 32486744 DOI: 10.1063/1.5143454] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Accepted: 04/30/2020] [Indexed: 06/11/2023]
Abstract
A Fast Charge eXchange Recombination Spectroscopy (CXRS) diagnostic with eight radial channels has been implemented on a HuanLiu-2A (HL-2A) tokamak with a time resolution of up to 10 kHz monitoring helium II spectra or 1 kHz monitoring carbon VI spectra. The crucial aspects of the fast CXRS are to improve the spectral intensity and the acquisition frequency. The spectral intensity has been greatly enhanced by customized fiber bundles. The main boost in optimizing the acquisition frequency is achieved by binning more pixel rows of the charge coupled device (CCD) representing one radial channel and by reducing the effective image area of the CCD. Consequently, the sawtooth oscillations of ion temperature and rotation velocity are continuously observed for the first time in the HL-2A tokamak.
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Affiliation(s)
- X X He
- Southwestern Institute of Physics, P. O. Box 432, Chengdu 610041, China
| | - D L Yu
- Southwestern Institute of Physics, P. O. Box 432, Chengdu 610041, China
| | - L W Yan
- Southwestern Institute of Physics, P. O. Box 432, Chengdu 610041, China
| | - L Liu
- Southwestern Institute of Physics, P. O. Box 432, Chengdu 610041, China
| | - W J Chen
- Southwestern Institute of Physics, P. O. Box 432, Chengdu 610041, China
| | - Y L Wei
- Southwestern Institute of Physics, P. O. Box 432, Chengdu 610041, China
| | - X F He
- Southwestern Institute of Physics, P. O. Box 432, Chengdu 610041, China
| | - Q Ma
- College of Physics and Optoelectronics Technology, Baoji University of Arts and Sciences, Baoji, Shanxi 721016, China
| | - Z B Shi
- Southwestern Institute of Physics, P. O. Box 432, Chengdu 610041, China
| | - Yi Liu
- Southwestern Institute of Physics, P. O. Box 432, Chengdu 610041, China
| | - Q W Yang
- Southwestern Institute of Physics, P. O. Box 432, Chengdu 610041, China
| | - M Xu
- Southwestern Institute of Physics, P. O. Box 432, Chengdu 610041, China
| | - X R Duan
- Southwestern Institute of Physics, P. O. Box 432, Chengdu 610041, China
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Chen WJ, Yu DL, Yan LW, Yuan BS, He XX, Liu L, Wei YL, Wang J, Shi ZB, Liu Y, Yang QW. Note: Real-time wavelength matching system designed for the motional Stark effect polarimeter on HL-2A tokamak. Rev Sci Instrum 2018; 89:126103. [PMID: 30599558 DOI: 10.1063/1.5049613] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Accepted: 11/12/2018] [Indexed: 06/09/2023]
Abstract
A 7-channel motional Stark effect diagnostic based on dual photo-elastic modulators is installed and operated routinely for rather low beam energy and magnetic field on the HL-2A tokamak, with a spatial resolution of ∼3 cm and a temporal resolution of 10 ms. The instrument observes the σ component of the full energy Dα from the first or the fourth ion source of a neutral beam injector. However, the change in beam energy during a discharge causes variation of the Doppler shift with the maximum of 1 Å, which leads to the polarization fraction drop from 30%-40% to 10% and then makes the signal-to-noise ratio of the system become very poor. Therefore, a real-time wavelength matching system is designed to promote polarization fraction. The beam emission spectra are filtered by using a monochrometer in real time. And a narrowband filter is tilted by using an absolutely calibrated rotator through beam energy in order to make sure that the deviation of wavelength matching is less than 0.1 Å.
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Affiliation(s)
- W J Chen
- Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China
| | - D L Yu
- Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China
| | - L W Yan
- Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China
| | - B S Yuan
- Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China
| | - X X He
- Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China
| | - L Liu
- Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China
| | - Y L Wei
- Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China
| | - J Wang
- Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China
| | - Z B Shi
- Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China
| | - Y Liu
- Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China
| | - Q W Yang
- Southwestern Institute of Physics, P.O. Box 432, Chengdu 610041, China
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Wang AJ, Shi YQ, Zheng XL, He XX, Zhou XJ, Li HM, Wang T, Xiong HF, Xie Y, Lyu NH. [Normal values for solid state high resolution anorectal manometry in healthy adult volunteers]. Zhonghua Nei Ke Za Zhi 2018; 56:572-576. [PMID: 28789489 DOI: 10.3760/cma.j.issn.0578-1426.2017.08.004] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the normal values for two-dimension solid state high resolution anorectal manometry (HRAM) in healthy adult volunteers. Methods: The healthy adult volunteers were recruited by advertisement and underwent solid state HRAM in the left lateral position. Anorectal pressures and rectal sensation were recorded and analyzed. Results: (1) A total of 126 Chinese healthy adult volunteers (male: 50 cases (39.7%); age: (37.5±14.2) years old ) were recruited in this study. (2) Mean anal resting pressure (MERP) was (71.8±17.3) mmHg (1 mmHg=0.133 kPa). Maximum anal resting pressure (MARP) was (79.3±17.8) mmHg, Maximum anal squeeze pressure (MSP) was (178.7±52.8) mmHg. Anal high pressure zone (HPZ) length was (3.4±0.6) cm. During simulated evacuation, residual anal pressure (RAP) was (63.8±20.5) mmHg, and anal relaxation rate (ARR) was (37.0±11.5)%. Rectal threshold volume for first sensation (FST), desire to defecate (DDT), urgency to defecate (UDT) and maximum discomfort (MDT) was (47.4±10.0) ml, (84.5±18.2) ml, (125.8±28.5) ml, and (175.5±36.1) ml, respectively. (3) Compared with female subjects, male subjects had higher MSP[(211.0±50.7) mmHg vs (157.5±42.5) mmHg], RAP[(71.6±18.1) mmHg vs (58.8±20.5) mmHg]and rectal MDT[(187.0±36.4) mmHg vs (168.0±34.1)mmHg], but lower ARR[(32.1±8.0)% vs (40.2±12.3)%], all P<0.01. (4) MERP, MARP, MSP and rectal MDT were higher in young group (≤40 years old), all P<0.05. Conclusions: These observations provide normal values for two-dimension solid state HRAM, which have significant difference between genders and different age groups.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | - N H Lyu
- Department of Gastroenterology and Hepatology, the First Affiliated Hospital of Nanchang University, Nanchang, Jiangxi 330006, China
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Liang FF, Wang J, Li L, Yuan Y, Xie WR, Wu LH, He XX. [Chronic liver disease increases with damage to intestinal barrier function]. Zhonghua Gan Zang Bing Za Zhi 2018; 26:612-617. [PMID: 30317794 DOI: 10.3760/cma.j.issn.1007-3418.2018.08.010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
Objective: To probe into the correlation between chronic liver disease and intestinal barrier function. Methods: 1 491 cases of hospitalized patients were enrolled, of which 741 cases were of chronic liver diseases, including 397 cases of fatty liver diseases, 230 cases of chronic hepatitis, 114 cases of liver cirrhosis, and 750 cases of non-hepatic diseases. All admitted patients' intestinal barrier function like diamine oxidase (DAO), D-lactate, lipopolysaccharide, and biochemical indicators of liver functions were tested. According to different data, statistical analysis was done using t-test, ANOVA, Dunnett's test, χ (2) test of fourfold table, Pearson's correlation, and binary logistic regression. Results: The intestinal barrier dysfunction was more likely to occur in the chronic liver disease group than that of non-hepatic disease group [54.15% (379/741) vs. 18.53% (139/750), χ (2) = 193.58, P < 0.001]. The correlation analysis between biochemical indicators of liver function and intestinal barrier function in chronic liver disease group showed that alanine aminotransferase (ALT), aspartate aminotransferase (AST), gamma glutamyl transferase (GGT), and total bilirubin levels were more susceptible to intestinal barrier dysfunction than those with normal indexes (P < 0.05 ). GGT had stimulated DAO (P < 0.05, OR > 1), D-lactate (P < 0.05, OR > 1), lipopolysaccharide (P < 0.05, OR > 1), ALT and AST. Conclusion: Chronic liver disease increases with damage to intestinal barrier function.
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Affiliation(s)
- F F Liang
- Department of Gastroenterology, the First Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou 510080, China
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20
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Wei XK, Xiong Y, Li XN, Zheng M, Pan Y, He XX, Liang JJ, Liu C, Zhong YZ, Zou LB, Zheng LF, Guo JG, Li CT, Huang SB, Gan JZ, Meng ZM, Yang J, Tang HB, Liu Q, Luo TR. Vaccination demonstration zone successfully controls rabies in Guangxi Province, China. BMC Infect Dis 2018; 18:386. [PMID: 30097026 PMCID: PMC6086044 DOI: 10.1186/s12879-018-3301-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/13/2018] [Accepted: 08/01/2018] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Guangxi is the province most seriously affected by rabies virus (RABV) in China. Those most affected by RABV each year are people in rural areas, where dogs are the main cause of human infection with the virus. METHODS In this study, we established a rabies vaccination demonstration program that included eradication, core, and peripheral areas. This program was implemented for 9 years and comprised three stages: 12 counties in the first stage (2008-2010), 21 counties in the second stage (2011-2013), and then extending to all counties of Guangxi Province in the third stage (2014-2016). The program included a dog vaccination campaign, surveillance of clinically healthy dogs who may be potential RABV carriers, monitoring anti-RABV antibody titers in vaccinated dogs, and compiling and reporting statistics of human rabies cases. RESULTS The target effectiveness was achieved in the eradication, core, and peripheral areas in all three stages. The vaccination demonstration program successfully promoted RABV vaccination of domestic dogs throughout Guangxi Province by drawing upon the experience gained at key points. Compared with a vaccination coverage rate of 39.42-46.85% in Guangxi Province overall during 2003-2007, this rate gradually increased to 48.98-52.67% in 2008-2010, 60.24-69.67% in 2011-2013, and 70.09-71.53% in 2014-2016, thereby meeting World Health Organization requirements. The total cases of human rabies in the province decreased from 602 in 2004 to 41 cases in 2017. CONCLUSIONS The present pilot vaccination program obviously increased the rabies vaccination and seroconversion rates, and effectively reduced the spread of rabies from dogs to humans as well as the number of human rabies cases, thus successfully controlling rabies in Guangxi.
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Affiliation(s)
- Xian-Kai Wei
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresourses, Guangxi University, 100# Daxue Road, Nanning, 530004, Guangxi, China.,Laboratory of Veterinary Microbiology and Animal Infectious Diseases, College of Animal Sciences and Veterinary Medicine, Guangxi University, 100# Daxue Road, Nanning, 530004, Guangxi, China.,Guangxi Center for Animal Disease Control and Prevention, Nanning, 530001, Guangxi, China
| | - Yi Xiong
- Guangxi Center for Animal Disease Control and Prevention, Nanning, 530001, Guangxi, China
| | - Xiao-Ning Li
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresourses, Guangxi University, 100# Daxue Road, Nanning, 530004, Guangxi, China.,Laboratory of Veterinary Microbiology and Animal Infectious Diseases, College of Animal Sciences and Veterinary Medicine, Guangxi University, 100# Daxue Road, Nanning, 530004, Guangxi, China
| | - Min Zheng
- Guangxi Center for Animal Disease Control and Prevention, Nanning, 530001, Guangxi, China
| | - Yan Pan
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresourses, Guangxi University, 100# Daxue Road, Nanning, 530004, Guangxi, China.,Laboratory of Veterinary Microbiology and Animal Infectious Diseases, College of Animal Sciences and Veterinary Medicine, Guangxi University, 100# Daxue Road, Nanning, 530004, Guangxi, China
| | - Xiao-Xia He
- Laboratory of Veterinary Microbiology and Animal Infectious Diseases, College of Animal Sciences and Veterinary Medicine, Guangxi University, 100# Daxue Road, Nanning, 530004, Guangxi, China
| | - Jing-Jing Liang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresourses, Guangxi University, 100# Daxue Road, Nanning, 530004, Guangxi, China.,Laboratory of Veterinary Microbiology and Animal Infectious Diseases, College of Animal Sciences and Veterinary Medicine, Guangxi University, 100# Daxue Road, Nanning, 530004, Guangxi, China
| | - Cheng Liu
- Laboratory of Veterinary Microbiology and Animal Infectious Diseases, College of Animal Sciences and Veterinary Medicine, Guangxi University, 100# Daxue Road, Nanning, 530004, Guangxi, China
| | - Yi-Zhi Zhong
- Laboratory of Veterinary Microbiology and Animal Infectious Diseases, College of Animal Sciences and Veterinary Medicine, Guangxi University, 100# Daxue Road, Nanning, 530004, Guangxi, China
| | - Lian-Bin Zou
- Guangxi Center for Animal Disease Control and Prevention, Nanning, 530001, Guangxi, China
| | - Lie-Feng Zheng
- Guangxi Center for Animal Disease Control and Prevention, Nanning, 530001, Guangxi, China
| | - Jian-Gang Guo
- Guangxi Center for Animal Disease Control and Prevention, Nanning, 530001, Guangxi, China
| | - Chang-Ting Li
- Guangxi Veterinary Research Institute, Nanning, 530001, Guangxi, China
| | - Sheng-Bin Huang
- Guangxi Center for Animal Disease Control and Prevention, Nanning, 530001, Guangxi, China
| | - Jia-Zhong Gan
- Yulin Center for Animal Disease Control and Prevention, Yulin, 537000, Guangxi, China
| | - Zhen-Mu Meng
- Baise Center for Animal Disease Control and Prevention, Baise, 533000, Guangxi, China
| | - Jian Yang
- Laboratory of Veterinary Microbiology and Animal Infectious Diseases, College of Animal Sciences and Veterinary Medicine, Guangxi University, 100# Daxue Road, Nanning, 530004, Guangxi, China
| | - Hai-Bo Tang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresourses, Guangxi University, 100# Daxue Road, Nanning, 530004, Guangxi, China.,Laboratory of Veterinary Microbiology and Animal Infectious Diseases, College of Animal Sciences and Veterinary Medicine, Guangxi University, 100# Daxue Road, Nanning, 530004, Guangxi, China
| | - Qi Liu
- Laboratory of Veterinary Microbiology and Animal Infectious Diseases, College of Animal Sciences and Veterinary Medicine, Guangxi University, 100# Daxue Road, Nanning, 530004, Guangxi, China. .,Guangxi Center for Animal Disease Control and Prevention, Nanning, 530001, Guangxi, China.
| | - Ting Rong Luo
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresourses, Guangxi University, 100# Daxue Road, Nanning, 530004, Guangxi, China. .,Laboratory of Veterinary Microbiology and Animal Infectious Diseases, College of Animal Sciences and Veterinary Medicine, Guangxi University, 100# Daxue Road, Nanning, 530004, Guangxi, China.
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21
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Wei XK, He XX, Pan Y, Liu C, Tang HB, Zhong YZ, Li XN, Liang JJ, Luo TR. Evolutionary analysis of rabies virus isolates from Guangxi Province of southern China. BMC Vet Res 2018; 14:188. [PMID: 29914504 PMCID: PMC6006964 DOI: 10.1186/s12917-018-1514-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2018] [Accepted: 06/01/2018] [Indexed: 11/10/2022] Open
Abstract
Background Rabies is a severe epidemic in Guangxi province, China, with hundreds of deaths occurring each year. In the past six decades, rabies has emerged three times in Guangxi, and the province has reported the largest number of rabies cases in China. The domestic dog is the principal vector for rabies, and 95% of human cases are associated with transmission from dogs. Results To understand the genetic relationship between street rabies virus (RABV) from Guangxi, genetic diversity analysis was performed using RABV isolates collected between 1999 and 2012. The N gene of 42 RABV isolates, and the P and M genes, as well as fragments of the 3′ terminus (L1–680) and the polymerase activity module of the L gene (Lpam) of 36 RABV isolates were sequenced. In addition, whole genome sequencing was performed for 5 RABV isolates. There was evidence of topological discrepancy in the phylogenetic trees based on different genes of the RABV isolates. Amino acid variation of the deduced N protein exhibited different patterns to those obtained from the P and M proteins reported here, and the previously reported G protein (Tang H. et al., PLoS Negl Trop Dis, 8(10): e3114, 2014), and L1–680 and Lpam. These RABV isolates were divided into three main branches against fixed strains. Conclusion RABV is prevalent in Guangxi province and strains collected over the last two decades belong mainly to three groups (I, II, III). These RABV isolates reveal genetic diversity. Individual RABV genes from Guangxi exhibit different evolutionary characteristics. The results will have benefits for continuing comprehensive rabies surveillance, prevention and control in China. Electronic supplementary material The online version of this article (10.1186/s12917-018-1514-0) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Xian-Kai Wei
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, Nanning, 530004, Guangxi, China.,Laboratory of Veterinary Microbiology and Animal Infectious Diseases, College of Animal Sciences and Veterinary Medicine, Guangxi University, Nanning, 530004, Guangxi, China
| | - Xiao-Xia He
- Laboratory of Veterinary Microbiology and Animal Infectious Diseases, College of Animal Sciences and Veterinary Medicine, Guangxi University, Nanning, 530004, Guangxi, China
| | - Yan Pan
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, Nanning, 530004, Guangxi, China.,Laboratory of Veterinary Microbiology and Animal Infectious Diseases, College of Animal Sciences and Veterinary Medicine, Guangxi University, Nanning, 530004, Guangxi, China
| | - Cheng Liu
- Laboratory of Veterinary Microbiology and Animal Infectious Diseases, College of Animal Sciences and Veterinary Medicine, Guangxi University, Nanning, 530004, Guangxi, China
| | - Hai-Bo Tang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, Nanning, 530004, Guangxi, China.,Laboratory of Veterinary Microbiology and Animal Infectious Diseases, College of Animal Sciences and Veterinary Medicine, Guangxi University, Nanning, 530004, Guangxi, China
| | - Yi-Zhi Zhong
- Laboratory of Veterinary Microbiology and Animal Infectious Diseases, College of Animal Sciences and Veterinary Medicine, Guangxi University, Nanning, 530004, Guangxi, China
| | - Xiao-Ning Li
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, Nanning, 530004, Guangxi, China.,Laboratory of Veterinary Microbiology and Animal Infectious Diseases, College of Animal Sciences and Veterinary Medicine, Guangxi University, Nanning, 530004, Guangxi, China
| | - Jing-Jing Liang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, Nanning, 530004, Guangxi, China.,Laboratory of Veterinary Microbiology and Animal Infectious Diseases, College of Animal Sciences and Veterinary Medicine, Guangxi University, Nanning, 530004, Guangxi, China
| | - Ting Rong Luo
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-Bioresources, Guangxi University, Nanning, 530004, Guangxi, China. .,Laboratory of Veterinary Microbiology and Animal Infectious Diseases, College of Animal Sciences and Veterinary Medicine, Guangxi University, Nanning, 530004, Guangxi, China.
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22
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Xia D, Feng X, He X, Liu G, Lyu Y, Cheng H, Jiang Y, Lu H. Feasibility of an internet-based HIV testing service: anonymous urine collection from men who have sex with men. AIDS Care 2018; 30:1228-1230. [PMID: 29902931 DOI: 10.1080/09540121.2018.1488033] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
A large proportion of people who are HIV positive do not know their serostatus because facility-based provider-initiated HIV testing and counseling, and voluntary counseling and testing, have not been efficiently implemented in China. Therefore, a new HIV testing strategy must be developed to improve testing services so that more HIV infections can be detected earlier. In this study, we established an anonymous internet-aided urine-based HIV testing service for men who have sex with men (MSM) from 1 April 2016 to 20 January 2017. In total, 3092 urine sample collection packs were distributed by grassroots organizations to MSM; 1977 (69.3%) packs were mailed back to the laboratory; and 1911 (96.7%) eligible samples were tested for HIV antibody. The rate of HIV antibody positivity was 7.1% (135/1901), excluding 10 previously-identified HIV infections. Of those tested, 65.4% (1243/1901) participants obtained their results from our website, 94 (69.6%) of 135 newly-identified urine HIV antibody-positive participants were contacted by CDC staff, and 61.7% (58/94) reported undergoing blood HIV antibody confirmation testing after learning of their urine HIV antibody test results. Of those who were tested for venous HIV antibody, 84.5% (49/58) reported being confirmed HIV antibody positive. Thirty-six of the newly diagnosed participants were successfully referred to a hospital to receive antiretroviral therapy. The rate of confirmed HIV antibody positivity was estimated to be 72.8-89.2 times of that of routine HIV antibody testing. In conclusion, this approach offers an alternative efficient HIV testing strategy to identify HIV positive persons in vulnerable populations.
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Affiliation(s)
- DongYan Xia
- a Department of AIDS/STDs Control and Prevention , Beijing Center for Disease Control and Prevention & Beijing Research Center for Preventive Medicine , Beijing , People's Republic of China
| | - Xia Feng
- b Department of Clinical Laboratory , Beijing You-An Hospital, Capital Medical University , Beijing , People's Republic of China
| | - XiaoXia He
- c HIV/HCV Reference Laboratory , National Center for AIDS/STD Control and Prevention, China CDC , Beijing , People's Republic of China
| | - GuoWu Liu
- a Department of AIDS/STDs Control and Prevention , Beijing Center for Disease Control and Prevention & Beijing Research Center for Preventive Medicine , Beijing , People's Republic of China
| | - Yi Lyu
- c HIV/HCV Reference Laboratory , National Center for AIDS/STD Control and Prevention, China CDC , Beijing , People's Republic of China
| | - Huanyi Cheng
- c HIV/HCV Reference Laboratory , National Center for AIDS/STD Control and Prevention, China CDC , Beijing , People's Republic of China
| | - Yan Jiang
- c HIV/HCV Reference Laboratory , National Center for AIDS/STD Control and Prevention, China CDC , Beijing , People's Republic of China
| | - HongYan Lu
- a Department of AIDS/STDs Control and Prevention , Beijing Center for Disease Control and Prevention & Beijing Research Center for Preventive Medicine , Beijing , People's Republic of China
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23
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Sun SH, Gao ZD, Zhao F, Zhang WY, Zhao X, Li YY, Li YM, Hong F, He XX, Zhan SY. [Spatial-temporal analysis on pulmonary tuberculosis in Beijing during 2005-2015]. Zhonghua Liu Xing Bing Xue Za Zhi 2018; 39:816-820. [PMID: 29936753 DOI: 10.3760/cma.j.issn.0254-6450.2018.06.023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyze the spatial distribution and identify the high risk areas of pulmonary tuberculosis at the township level in Beijing during 2005-2015. Methods: Data on pulmonary tuberculosis cases was collected from the tuberculosis information management system. Global autocorrelation analysis, local indicators of spatial association and Kulldorff's Scan Statistics were applied to map the spatial distribution and detect the space-time clusters of the pulmonary tuberculosis cases during 2005-2015. Results: Spatial analysis on the incidence of pulmonary tuberculosis at the township level demonstrated that the spatial autocorrelation was positive during the study period. The values of Moran's I ranged from 0.224 3 to 0.291 8 with all the P values less than 0.05. Hotspots were primarily distributed in 8 towns/streets as follows: Junzhuang, Wangping, Yongding and Tanzhesi in Mentougou district, Yancun in Fangshan district, Wangzuo town in Fengtai district, Tianqiao street in Xicheng district and Tianzhu town in Shunyi district. Spatiotemporal clusters across the entire study period were identified by using Kulldorff's spatiotemporal scan statistic. The primary cluster was located in Chaoyang and Shunyi districts, including 17 towns/streets, as follows: Cuigezhuang, Maizidian, Dongfeng, Taiyanggong, Zuojiazhuang, Hepingjie, Xiaoguan, Xiangheyuan, Dongba, Jiangtai, Wangjing, Jinzhan, Jiuxianqiao, Laiguangying, Sunhe towns/streets in Chaoyang district, Houshayu and Tianzhu town in Shunyi district, during January to December 2005. Conclusion: Incidence rates of pulmonary tuberculosis displayed spatial and temporal clusterings at the township level in Beijing during 2005-2015, with high risk areas relatively concentrated in the central and southern parts of Beijing.
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Affiliation(s)
- S H Sun
- The Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China;Beijing Research Institute for Tuberculosis Control, Beijing 100035, China
| | - Z D Gao
- Beijing Research Institute for Tuberculosis Control, Beijing 100035, China
| | - F Zhao
- Beijing Research Institute for Tuberculosis Control, Beijing 100035, China;National Center for Tuberculosis Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - W Y Zhang
- Institute of Disease Control and Prevention of the People's Liberation Army, Beijing 100071, China
| | - X Zhao
- Beijing Research Institute for Tuberculosis Control, Beijing 100035, China
| | - Y Y Li
- Beijing Research Institute for Tuberculosis Control, Beijing 100035, China
| | - Y M Li
- Beijing Research Institute for Tuberculosis Control, Beijing 100035, China
| | - F Hong
- Beijing Research Institute for Tuberculosis Control, Beijing 100035, China
| | - X X He
- Beijing Research Institute for Tuberculosis Control, Beijing 100035, China
| | - S Y Zhan
- The Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China
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24
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Yuan Y, Sun ZM, Zhang Y, Liang FF, He XX. [Influence of gut microecology on the pathogenesis and treatment of nonalcoholic fatty liver disease]. Zhonghua Gan Zang Bing Za Zhi 2017; 24:375-9. [PMID: 27470892 DOI: 10.3760/cma.j.issn.1007-3418.2016.05.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To establish a rat model of nonalcoholic fatty liver disease (NAFLD) using high-fat diet, and to dynamically observe the influence of the changes in gut microbiota on the development and progression of NAFLD in rats during and after modeling. METHODS Sprague-Dawley rats were given high-fat diet to establish the model of NAFLD, and these rats were randomly divided into high-fat group, antibiotic pretreatment group, antibiotic treatment group, restricted diet group, and control group. The rats were sacrificed in different feeding periods, and 16sRNA fluorescent quantitative PCR was used to analyze the changes in ileocecal microbiota in rats. The liver pathological scores were determined, and enzymatic colorimetry was used to measure blood lipid level in serum and liver homogenate. The sample mean t-test was used for comparison between groups. RESULTS Compared with the high-fat group, the restricted diet group showed the most significant improvements in quality of life and biochemical parameters. In the restricted diet group, the number of probiotics (Bifidobacterium and Lactobacillus) at the end of the ileum gradually increased and tended to increase over the time of intervention, and the most significant difference between this group and the high-fat group occurred at the 10th week (Bifidobacterium: 0.91±0.23 vs 0.28±0.12, P < 0.05; Lactobacillus: 0.78±0.04 vs 0.21±0.03, P < 0.05), while the number of enterococci decreased. There were no significant differences in enteric bacilli between groups (all P > 0.05). At the 10th week, the liver pathological scores in the control group, antibiotic treatment group, and restricted diet group were 1.13±1.74, 4.86±0.86, and 2.94±1.91, respectively, significantly lower than 7.09±2.03 in the high fat group (all P < 0.05). CONCLUSION Diet structure change and antibiotic intervention can adjust gut microecology, alleviate the lesions of NAFLD, and thus provide new strategies for the prevention and treatment of NAFLD from the perspective of microecology.
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Affiliation(s)
- Y Yuan
- Department of Gastroenterology, Affiliated Hospital, Guangdong College of Pharmacy, Guangzhou 510080, China
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Zuo PY, Chen XL, Liu YW, Zhang R, He XX, Liu CY. Non-HDL-cholesterol to HDL-cholesterol ratio as an independent risk factor for the development of chronic kidney disease. Nutr Metab Cardiovasc Dis 2015; 25:582-587. [PMID: 25921842 DOI: 10.1016/j.numecd.2015.03.003] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/14/2014] [Revised: 02/10/2015] [Accepted: 03/05/2015] [Indexed: 11/30/2022]
Abstract
BACKGROUND AND AIMS Dyslipidemia contributes to the development and progression of renal disease. The objective of this study was to investigate whether an elevated non-HDL-cholesterol to HDL-cholesterol ratio (NonHDLc/HDLc) predicts new-onset chronic kidney disease (CKD). METHODS AND RESULTS We followed 1891 Chinese adults with normal or near-normal kidney function at baseline who participated in an annual health checkup program for the occurrence of new-onset CKD [defined as an estimated glomerular filtration rate (eGFR) of <60 mL/min/1.73 m(2) (low eGFR) and/or proteinuria (defined as urinary protein ≥1 + on dipstick testing)] or low eGFR. Cox proportional hazards models were used to examine the independent relationship between the plasma NonHDLc/HDLc ratio and new-onset CKD. During a median follow-up period of 2.8 years, 3% (n = 57) of participants developed new-onset CKD. Compared with patients in the lowest tertile, patients with NonHDLc/HDLc ratios in the highest tertile had a 1.45-fold higher risk of new-onset CKD (hazard ratio [HR], 2.45; 95% confidence interval [95% CI], 1.07 to 5.61; P = 0.035) after adjustment for potential confounders. There was a marginally significant association with low eGFR (tertile 3 versus tertile 1: HR, 2.94; 95% CI, 0.98 to 8.82; P = 0.054). CONCLUSIONS NonHDLc/HDLc ratio is an independent risk factor for the development of CKD. Assessment of NonHDLc/HDLc ratio may help identify high risk groups with chronic kidney disease.
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Affiliation(s)
- P Y Zuo
- Department of Geriatrics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei Province, China
| | - X L Chen
- Department of Geriatrics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei Province, China
| | - Y W Liu
- Department of Geriatrics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei Province, China
| | - R Zhang
- Department of Geriatrics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei Province, China
| | - X X He
- Department of Geriatrics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei Province, China
| | - C Y Liu
- Department of Geriatrics, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, Hubei Province, China.
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Tang HB, Pan Y, Wei XK, Lu ZL, Lu W, Yang J, He XX, Xie LJ, Zeng L, Zheng LF, Xiong Y, Minamoto N, Luo TR. Re-emergence of rabies in the Guangxi province of Southern China. PLoS Negl Trop Dis 2014; 8:e3114. [PMID: 25275567 PMCID: PMC4183421 DOI: 10.1371/journal.pntd.0003114] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2014] [Accepted: 07/13/2014] [Indexed: 11/18/2022] Open
Abstract
BACKGROUND Human rabies cases in the Guangxi province of China decreased from 839 in 1982 to 24 in 1995, but subsequently underwent a sharp increase, and has since maintained a high level. METHODOLOGY/PRINCIPAL FINDINGS 3,040 brain samples from normal dogs and cats were collected from 14 districts of Guangxi and assessed by RT-PCR. The brain samples showed an average rabies virus (RV) positivity rate of 3.26%, but reached 4.71% for the period Apr 2002 to Dec 2003. A total of 30 isolates were obtained from normal dogs and 28 isolates from rabid animals by the mouse inoculation test (MIT). Six representative group I and II RV isolates showed an LD50 of 10-5.35/ml to 10-6.19/ml. The reactivity of monoclonal antibodies (MAbs) to group I and II RV isolates from the Guangxi major epidemic showed that eight anti-G MAbs showed strong reactivity with isolates of group I and II with titers of ≥10,000; however, the MAbs 9-6, 13-3 and 12-14 showed lower reactivity. Phylogenetic analysis based on the G gene demonstrated that the Guangxi RV isolates have similar topologies with strong bootstrap values and are closely bonded. Alignment of deduced amino acids revealed that the mature G protein has four substitutions A96S, L132F, N436S, and A447I specific to group I, and 13 substitutions T90M, Y168C, S204G, T249I, P253S, S289T, V332I, Q382H, V427I, L474P, R463K Q486H, and T487N specific to group II, coinciding with the phylogenetic analysis of the isolates. CONCLUSIONS Re-emergence of human rabies has mainly occurred in rural areas of Guangxi since 1996. The human rabies incidence rate increased is related with RV positive rate of normal dogs. The Guangxi isolates tested showed a similar pathogenicity and antigenicity. The results of phylogenetic analysis coincide with that of alignment of deduced amino acids.
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Affiliation(s)
- Hai-Bo Tang
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Guangxi, China
- College of Animal Sciences and Veterinary Medicine, Guangxi University, Guangxi, China
| | - Yan Pan
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Guangxi, China
| | - Xian-Kai Wei
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Guangxi, China
- College of Animal Sciences and Veterinary Medicine, Guangxi University, Guangxi, China
| | - Zhuan-Ling Lu
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Guangxi, China
- College of Animal Sciences and Veterinary Medicine, Guangxi University, Guangxi, China
| | - Wu Lu
- College of Animal Sciences and Veterinary Medicine, Guangxi University, Guangxi, China
| | - Jian Yang
- College of Animal Sciences and Veterinary Medicine, Guangxi University, Guangxi, China
| | - Xiao-Xia He
- College of Animal Sciences and Veterinary Medicine, Guangxi University, Guangxi, China
| | - Lin-Juan Xie
- College of Animal Sciences and Veterinary Medicine, Guangxi University, Guangxi, China
| | - Lan Zeng
- College of Animal Sciences and Veterinary Medicine, Guangxi University, Guangxi, China
| | - Lie-Feng Zheng
- Guangxi Center for Animal Disease Control and Prevention, Guangxi, China
| | - Yi Xiong
- Guangxi Center for Animal Disease Control and Prevention, Guangxi, China
| | - Nobuyuki Minamoto
- College of Animal Sciences and Veterinary Medicine, Guangxi University, Guangxi, China
| | - Ting Rong Luo
- State Key Laboratory for Conservation and Utilization of Subtropical Agro-bioresources, Guangxi University, Guangxi, China
- College of Animal Sciences and Veterinary Medicine, Guangxi University, Guangxi, China
- * E-mail:
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Tang HB, Lu ZL, Zhong YZ, He XX, Zhong TZ, Pan Y, Wei XK, Luo Y, Liao SH, Minamoto N, Luo TR. Characterization of the biological properties and complete genome sequence analysis of a cattle-derived rabies virus isolate from the Guangxi province of southern China. Virus Genes 2014; 49:417-27. [DOI: 10.1007/s11262-014-1108-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2014] [Accepted: 08/12/2014] [Indexed: 10/24/2022]
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Li SP, Xue DQ, Du HW, He XX. Endoscopic therapy for choledocholithiasis with liver cirrhosis and esophagogastric varices: An analysis of 52 cases. Shijie Huaren Xiaohua Zazhi 2012; 20:3154-3158. [DOI: 10.11569/wcjd.v20.i32.3154] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
AIM: To assess the curative effect and safety of endoscopic therapy for choledocholithiasis with liver cirrhosis and esophagogastric varices.
METHODS: Fifty-two patients were divided into three groups according to their conditions and treated with individualization regimens. The first group was treated simultaneously by sclerotherapy or embolization of esophagogastric varices and endoscopic sphincterotomy. The second group was treated by endoscopic sphincterotomy 10-30 d after sclerotherapy or embolization of esophagogastric varices. The third group was treated by endoscopic sphincterotomy or endoscopic papillary balloon dilation for choledocholithiasis at the appropriate time after sclerotherapy or embolization of esophagogastric varices and endoscopic retrograde biliary drainage (ERBD).
RESULTS: Bile duct stones were removed completely in 49 patients, and the success rate is 94.2%. The incidence of overall postoperative complications was 9.62% (5/52), and the incidences of cholangitis, hemorrhage, and acute pancreatitis rate were 3.85% (2/52), 3.85% (2/52) and 1.92% (1/52), respectively. Two patients died of chronic liver failure and the death was not related with the endoscopic procedure. Stent migration occurred in one case and was managed surgically.
CONCLUSION: Endoscopic treatment is currently the best treatment for cirrhotic patients with choledocholithiasis and esophagogastric varices.
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Zhang HY, Liang JJ, Meng XM, Li H, Yang J, Su LJ, Zhang HP, Xie LJ, He XX, Li YS, Yin S, Li XQ, Li XN, Luo TR. Molecular epidemiology of PRRSV from China’s Guangxi Province between 2007 and 2009. Virus Genes 2012; 46:71-80. [DOI: 10.1007/s11262-012-0824-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2012] [Accepted: 09/12/2012] [Indexed: 11/27/2022]
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Yang GR, Huang GS, He XX, Xue YJ. [Effects of human cytomegalovirus on the cell cycle of duct epithelial cell cultures of human salivary gland in vitro and relative mechanism]. Zhonghua Shi Yan He Lin Chuang Bing Du Xue Za Zhi 2011; 25:188-190. [PMID: 21977588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
OBJECTIVE To investigate the effects of human cytomegalovirus (HCMV) on the cell cycle of duct epithelial cell cultures of human salivary gland (HSG) in vitro and relative mechanism. METHODS HSG was cultured in vitro. Reverse transcriptase polymerase chain reaction (RT-PCR) and nest-RT-PCR were used respectively to investigate ie1/ie2 transcription in HSG infected by human cytomegalovirus(HCMV). The effects of HCMV on the cell cycle of HSG were studied by flow cytometry in vitro. The expression of cyclin D1 in HSG infected by HCMV was detected by Western blotting. RESULTS HCMV iel/ie2 transcription could be detected in HSG infected by HCMV. HCMV arrested productively infected cells in G1 stage. And cyclin D1 was down-regulated in HCMV infected HSG. CONCLUSION HCMV inhibits proliferation of HSG by affecting G1/S check point and down-regulating cyclin D1 in vitro.
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Affiliation(s)
- Guo-Rong Yang
- Department of Pathology, The First Hospital of PLA, Lanzhou 730030, China
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Su YN, Bai H, Wang CB, Ma XH, Ou JF, Zhao Q, He XX, Song WW. [Effects of peptidoglycan on proliferation and cell cycle of human bone marrow-derived mesenchymal stem cells]. Zhongguo Shi Yan Xue Ye Xue Za Zhi 2010; 18:986-990. [PMID: 20723314] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
This study was aimed to explore the effects of peptidoglycan (PGN) on proliferation and cell cycle of human bone marrow mesenchymal stem cells (MSCs). MSCs were isolated from human bone marrow by density gradient centrifugation. The purity of MSCs with the spindle fibroblastic morphology was identified by microphotography and the phenotypes were detected by flow cytometry (FCM). MSCs incubated with different doses of PGN (1, 10, 20 μg/ml) were used as test groups, and those incubated without PGN were regarded as control group. The isolated and cultured MSCs were inoculated into 96-well plates according to a certain concentration. Cell cycle was measured by flow cytometry after incubated with PGN for 72 hours. The results showed that the cell proliferation index was significantly increased in dose and time dependent manners after MSCs was incubated with PGN. Its effects on the proliferation of MSCs were highest in 10 μg/ml group. Compared with the control group, PGN could significantly decrease proportion of MSCs in G₀/G₁ phase and increase them in S and G₂/M phases (p < 0.05). It is concluded that PGN can promote more MSCs to enter the DNA synthesis phase and proliferate many much MSCs in dose and time dependent manners.
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Affiliation(s)
- Ya-Nan Su
- Center for Blood Diseases of Chinese PLA, Lanzhou Military Area Lanzhou General Hosipital, Lanzhou 730050, Gansu Province, China
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He JJ, Meng M, Zou ZQ, He XX. High-Temperature NO x Storage and Sulfur-Resistance of the Lithium-Based Lean-Burn NO x Trap Catalyst Pt/Li/TiO2–Al2O3. Catal Letters 2010. [DOI: 10.1007/s10562-010-0314-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Shi L, He XX, Pan Y, Han L, Yang XO, Zhao YQ. [Study on the chemical constituents of the fruit handles from Schizandra chinensis]. Zhong Yao Cai 2009; 32:1054-1056. [PMID: 19873730] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
OBJECTIVE To study the chemical constituents of the fruit handles from Schizandra chinensis. METHODS Compounds from the 85% ethanol extracts were isolated by silica gel, Sephadex LH-20, recrystal, etc., and their structures were identified by the spectral analysis and chemical evidence. RESULTS Eight compounds were isolated and identified as wuweizisu C (I), ganwuweizic acid(II), beta-sitosterol(III), gomisin A(IV), schizandrin(V), daucosterol(VI), wuweizisu A(VII), gamma-schizandrin (VIII). CONCLUSION Compounds I - VIII are isolated from the fruit handles of Schizandra chinensis for the first time.
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Affiliation(s)
- Lin Shi
- Shenyang Pharmaceutical University, Shenyang 110016, China
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He XX, Bai H, Yang GR, Xue YJ, Su YN. [Expression of Toll-like receptors in human bone marrow mesenchymal stem cells]. Zhongguo Shi Yan Xue Ye Xue Za Zhi 2009; 17:695-699. [PMID: 19549390] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
The aim of this study was to explore the characteristics of Toll-like receptor expression in mesenchymal stem cells derived from bone marrow of healthy donor (BM-MSCs). BM-MSCs were isolated from bone marrow of healthy donor by Ficoll method. Expressions of CD34, CD45, HLA-DR, CD44 and CD71 in BM-MSCs were detected by flow cytometry. CD71 in BM-MSCs was assayed by immunocytochemistry. The adipocyte and osteoblast induction of BM-MSCs were detected by alizarin red stain and oil red stain respectively. TLR 1 - 10 mRNA levels in BM-MSCs were evaluated by semiquantitative RT-PCR. The results showed that expressions of CD34, CD45 and HLA-DR in BM-MSC were negative while the expressions of CD44 and CD71 were positive. CD71 in BM-MSCs was positive. After induced by osteoblast and adipocyte inductor, BM-MSCs were positive for alizarin red staining and oil red staining respectively. All of TLR 1 - 10 mRNA were found in BM-MSCs with high expression levels of TLR2, TLR3, TLR4, TLR7, TLR8, TLR9 and low expression levels of TLR1, TLR5, TLR6, TLR10. In conclusion, different levels of TLR 1 - 10 mRNA were expressed in BM-MSCs of healthy donor.
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Affiliation(s)
- Xiao-Xia He
- Hematologic Disease Center, Lanzhou Military Area Lanzhou General Hosipital, Lanzhou, Gansu Province, China
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Meng LH, He XX, Zhang JS, Ding J. DNA topoisomerase II as the primary cellular target for salvicine in Saccharomyces cerevisiae. Acta Pharmacol Sin 2001; 22:741-6. [PMID: 11749849] [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: 02/23/2023] Open
Abstract
AIM To identify whether DNA topoisomerase II (Topo II) is the primary cellular target of salvicine in Saccharomyces cerevisiae (S cerevisiae) and the action mode of salvicine. METHODS The catalytic activity of Topo II was determined by Topo II mediated supercoiled pBR322 relaxation. The effects of salvicine on the growth of four strains of S cerevisiae were assessed by clone forming assay. RESULTS Salvicine inhibited Topo II mediated supercoiled pBR322 relaxation in cell-free system. Cytotoxicities of salvicine to parent (JN394) and TOP1 deleted (JN394top1-) yeast cells were at the same level, suggesting Topo I might not be the cellular target of salvicine. Salvicine displayed high activity against JN394t2-1 cells at 25 degrees C, while no growth inhibition was observed at 30 degrees C in the concentration range of interest. Furthermore, JN394t2-5 cells which expressed top2-5 mutant allele were highly resistant to salvicine and etoposide (VP16). CONCLUSION Topo II was the primary cellular target of salvicine in vivo and salvicine killed yeast cells mainly by trapping the DNA-Topo II cleavage complex. Salvicine and VP16 might share some similar action locus on Topo II.
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Affiliation(s)
- L H Meng
- Division of Antitumor Pharmacology, State Key Laboratory of Drug Research, Shanghai Institute of Materia Medica, Shanghai Institutes for Biological Sciences, Chinese Academy of Sciences, Shanghai 200031, China
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Yu F, He XX, Xie Q, Jiang J. [Detection of microbes adherent to particles in a closed environment]. Space Med Med Eng (Beijing) 2000; 13:210-4. [PMID: 11543483] [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: 02/21/2023]
Abstract
OBJECTIVE In order to provide reference for controlling and monitoring the environmental contamination in the spacecraft, the species and amount of microbes, which adhere to the suspended particles with different size in a closed environment were detected. METHOD According to USA EPA IP-10, particles were continuously sampled by an impactor in a closed environment. The particles were divided into three grades by their aerodynamic diameters (AD): 100 micrometers > or = AD > 10 micrometers, 10 micrometers > or = AD>2 micrometers and AD < or = 2 micrometers. Clean outdoor air was collected as control by the same way. The collected particles were precisely weighed. The microbes that adhere to the particles were cultivated, counted and identified. RESULT By calculating total suspended particles (TSP) and inhalant particles (IP) of the closed environment, counting, clarifying and identifying the microbes, 6 kinds of bacteria, 2 genus of actinomyces and 6 kinds of fungi that adhere to the particles were detected. CONCLUSION The particles in a closed environment may have some effect on human health and instruments.
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Affiliation(s)
- F Yu
- Institute of Space Medico-Engineering, Beijing, China
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Cai T, Tagle DA, Xia X, Yu P, He XX, Li LY, Xia JH. A novel case of unilateral blepharophimosis syndrome and mental retardation associated with de novo trisomy for chromosome 3q. J Med Genet 1997; 34:772-6. [PMID: 9321768 PMCID: PMC1051066 DOI: 10.1136/jmg.34.9.772] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
We have evaluated a 3 2/12 year old girl who presented with unilateral blepharophimosis, ptosis of the eyelid, and mental retardation. Additional dysmorphic features include microcephaly, high, narrow forehead, short stubby fingers, and adduction of the right first toe. Cytogenetic analysis showed an unbalanced karyotype consisting of 46,XX,add(7)(q+) that was de novo in origin. Fluorescence in situ hybridisation (FISH) using microdissected library probe pools from chromosomes 1,2,3,7, and 3q26-qter showed that the additional material on 7q was derived from the distal end of the long arm of chromosome 3. Our results indicate that the patient had an unbalanced translocation, 46,XX,der(7)t(3;7)(q26-qter;q+) which resulted in trisomy for distal 3q. All currently reported cases of BPES (blepharophimosis-ptosis-epicanthus inversus syndrome) with associated cytogenetic abnormalities show interstitial deletions or balanced translocations involving 3q22-q23 or 3p25.3. Our patient shares similar features to BPES, except for the unilateral ptosis and absence of epicanthus inversus. It is possible that our patient has a contiguous gene defect including at least one locus for a type of blepharophimosis, further suggesting that multiple loci exist for eyelid development.
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Affiliation(s)
- T Cai
- National Key Laboratory of Medical Genetics, Human Medical University, PR China
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Abstract
Genetic factors are known to influence the preference for drinking alcohol-in humans as well as certain inbred strains of laboratory animals. Here we examined the possible role of the aromatic hydrocarbon receptor (AHR) in alcohol-preferring C57BL/6J (B6, high-affinity AHR) and alcohol-avoiding DBA/2J (D2, low-affinity AHR) inbred mouse strains, and in the two congenic lines B6.D2-Ahrd (> 99% B6 genome with the D2 low-affinity AHR) and D2.B6-Ahrb-1 (> 99% D2 genome with the B6 high-affinity AHR). This laboratory had previously shown an association between resistance to intraperitoneal ethanol-induced toxicity and the high-affinity AHR. Offering the choice between drinking water and 10% ethanol, we found that alcohol preference is three- to four-fold greater in B6 than D2 mice, as well as three- to four-fold greater in B6.D2-Ahrd than D2.B6-Ahrb-1 mice-indicating that alcohol preference is AHR-independent. The prototype AHR agonist 2,3,7,8-tetrachlorodibenzo-p-dioxin (TCDD; dioxin) did not affect the rates of chronic alcohol consumption in B6 or D2 mice, suggesting that dioxin-inducible metabolism does not play a major role in alcohol drinking preference. In B6 mice, we found that oral treatment with the aldehyde dehydrogenase (ALDH) inhibitor disulfiram decreased alcohol preference by 50%, whereas oral treatment of the catalase inhibitor 3-amino-1,2,4-triazole increased alcohol drinking preference by 15-20%. Although liver and brain ALDH activities were both significantly higher in D2 than B6, these activities were not related to alcohol consumption. Hepatic and brain catalase activities, on the other hand, were two- to three-fold higher in D2 and D2.B6-Ahrb-1 mice, compared with that in B6 and B6.D2-Ahrd. Furthermore, brain acetaldehyde levels were inversely related to the quantity of alcohol voluntarily consumed. We conclude that the alcohol drinking preference between the B6 and D2 inbred mouse strains is independent of the Ah receptor-but is genetically determined, in part, by the level of brain catalase activity which, in turn, regulates brain acetaldehyde concentrations.
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Affiliation(s)
- X X He
- Department of Environmental Health, University of Cincinnati Medical Center, OH 45267-0056, USA
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Xia JH, Ruan QG, He XX, Li LL, Huang L, Deng HX, Li LY. Sequencing for 4 single-copy DNA segments from human chromosome 8q24.1. Chin Med J (Engl) 1994; 107:257-9. [PMID: 8088191] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/28/2023] Open
Abstract
A successful method for constructing human chromosome 8q24.1 band specific probe pool by microdissection and microcloning is described in this paper. The probe pool was proved to be band-specific by fluorescence in situ hybridization. Through Southern blot analysis, 34 single copy DNA segments were obtained and four of them were sequenced. It is possible to provide useful landmarks for constructing human chromosome 8q24.1 physical map and STSs map.
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Affiliation(s)
- J H Xia
- State Key Laboratory of Medical Genetics, Human Medical University, Changsha
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Deng HX, He XX, Li LY, Xia JH, Niikawa N. Microdissection of human high resolution banded chromosome, polymerase chain reaction and microcloning. Chin Med J (Engl) 1991; 104:653-7. [PMID: 1655364] [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: 12/28/2022] Open
Abstract
A simple technique for microdissection of specific region of human high resolution banded chromosome, followed by polymerase chain reaction (PCR), and microcloning was successfully used to microdissect 4 chromosomal pieces from the distal one third from band 11.2 to the terminal of the short arm of Y chromosome where the testis determining factor is located; 3.6 x 10(4) clones were obtained after 30 cycles of PCR. We analysed 41 clones with insert. The size of insert ranges from 140 to 350 bp (average 250 bp). A Southern blot analysis was done for one of them, and a 2.5 kb Hind III fragment was detected.
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Affiliation(s)
- H X Deng
- National Laboratory of Medical Genetics, Hunan Medical University, Changsha
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Xia JH, Li LY, He XX, Xiao JY. Fragile site 1q44 involved in nasopharyngeal carcinoma. A study of a marker chromosome der(1)t(1;3)(q44;p11). Cancer Genet Cytogenet 1988; 35:135-40. [PMID: 3180003 DOI: 10.1016/0165-4608(88)90133-1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/04/2023]
Affiliation(s)
- J H Xia
- Medical Genetics Laboratory, Hunan Medical University, Changsha, China
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Abstract
Abnormal functional activity induces long-lasting physiological alterations in neural pathways that may play a role in the development of epilepsy. The cellular mechanisms of these alterations are not well understood. One hypothesis is that abnormal activity causes structural reorganization of neural pathways and promotes epileptogenesis. This report provides morphological evidence that synchronous perforant path activation and kindling of limbic pathways induce axonal growth and synaptic reorganization in the hippocampus, in the absence of overt morphological damage. The results show a previously unrecognized anatomic plasticity associated with synchronous activity and development of epileptic seizures in neural pathways.
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Affiliation(s)
- T Sutula
- Department of Neurology, University of Wisconsin, Madison 53792
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Brox LW, Belch A, Pollock E, He XX, De Braekeleer M, Lin CC. Cytogenetic and biological characterization of two new human plasma cell lines. Cancer Genet Cytogenet 1987; 27:135-44. [PMID: 3472643 DOI: 10.1016/0165-4608(87)90268-8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/05/2023]
Abstract
Two new human plasma cell lines designated as ACB-885 and ACB-1085 have been established from a 39-year-old patient with multiple myeloma. These cell lines have definitive plasma cell features by morphologic examination, and essentially all of the cells are positive for cytoplasmic IgG kappa immunoglobulin. These cells are negative for standard T-cell surface markers and mature B-cell markers, such as B1, B2, and HLA-DR, but are strongly positive for the antigen defined by OKT-10. The cells are negative for Epstein-Barr virus. The cell lines have a doubling time of 30-35 hours and a growth fraction approaching 100%. Cytogenetic analysis showed a 2n chromosome number of 45-46 with very similar karyotypic abnormalities in both the plasma cell lines and the original tumor material. One of the chromosomes in each of the pairs of chromosomes number #1, #2, #6, #7, #8, #10, #12, #13, and #22 were consistently missing. These were replaced by eight marker chromosomes that resulted from chromosomal rearrangements involving mainly these missing chromosomes. Almost all of the breakpoints occurring in the marker chromosomes were identified, and eight of these breakpoints have been reported in other studies of myeloma plasma cells. Homogeneously staining regions were observed in two marker chromosomes suggesting gene amplification in these chromosomal regions.
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45
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Li LY, Xia JH, Dai HP, Xu FM, He XX, Xu J. Chromosome analyses of 2,319 cases in genetic counseling clinic. Chin Med J (Engl) 1986; 99:527-34. [PMID: 3100199] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/04/2023] Open
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46
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Xia JH, Li LY, Dai HP, Xu J, Xu FM, He XX. G-banded chromosomes of 3,415 liveborn infants. Chin Med J (Engl) 1984; 97:921-7. [PMID: 6443290] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/20/2023] Open
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Li LY, Xia JH, Dai HP, He XX, Xu FM, Xu J, Xiao GH, He HE, Hu XD, Lu HL. Genetic Counseling Clinic chromosome analysis in 522 cases. Chin Med J (Engl) 1982; 95:793-804. [PMID: 6819917] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
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Xia JH, Li LY, Dai HP, Hu SQ, He XX, Xu FM, Xu J, Xiao GH, Hu XD, Lu HL. Karyotype analysis in 2,079 consecutive liveborn infants. Chin Med J (Engl) 1982; 95:687-91. [PMID: 6817995] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/22/2023] Open
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