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Xing XY, Wu ZZ, Wang HD, Xu W, Cao D, Liu ZR, Wu GC. The awareness rate of knowledge of chronic diseases and influencing factors among 4790 adults in anhui province: An online survey using WeChat. Heliyon 2024; 10:e28366. [PMID: 38590849 PMCID: PMC10999857 DOI: 10.1016/j.heliyon.2024.e28366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2022] [Revised: 03/17/2024] [Accepted: 03/18/2024] [Indexed: 04/10/2024] Open
Abstract
Objective To investigate public awareness about core information regarding chronic diseases and identify factors influencing that awareness among Anhui Province residents, provide a scientific basis for policy-making, and formulate corresponding intervention measures. Methods From March to April 2021, 12 provincial-level representative counties and districts of Anhui province in the China Adult Chronic Disease and Nutrition Surveillance were selected as survey sites, and 4790 residents were recruited for the survey using stratified multi-stage cluster random sampling. Basic details about the study participants were collected and their awareness of core information about major chronic diseases was measured through an online survey using WeChat. Results In 2021, the awareness rate of core information about chronic diseases among residents of Anhui Province was 54.93%. Multivariate logistic regression analysis showed that a higher awareness rate was associated with the following factors: non-housework occupations (agriculture, forestry, animal husbandry, and fishery: OR = 1.309, commercial services and production and transportation: OR = 1.450, institutions, and professional and technical personnel: OR = 1.461), a high education level (high school/junior high school/technical school OR = 1.357, college and above OR = 2.133), and residence in the southern and northern Anhui areas (southern Anhui OR = 1.282, northern Anhui OR = 1.431); whereas in rural areas (by district and country) (OR = 0.863), the awareness rate was low (all P < 0.05). Conclusions The awareness rate of core information about chronic diseases among residents of Anhui, China, is low. It is necessary to strengthen awareness about chronic disease prevention and management by targeting specific groups of people in this region.
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Affiliation(s)
- Xiu-Ya Xing
- Department of Chronic Non-communicable Disease Prevention and Control, Anhui Provincial Center for Disease Control and Prevention, Hefei, Anhui, 230601, China
| | - Zhen-Zhen Wu
- Department of Otorhinolaryngology and Head and Neck Surgery, The First Affiliated Hospital of Anhui Medical University, Hefei, 230022, Anhui, China
| | - Hua-Dong Wang
- Department of Chronic Non-communicable Disease Prevention and Control, Anhui Provincial Center for Disease Control and Prevention, Hefei, Anhui, 230601, China
| | - Wei Xu
- Department of Chronic Non-communicable Disease Prevention and Control, Anhui Provincial Center for Disease Control and Prevention, Hefei, Anhui, 230601, China
| | - Dan Cao
- Department of Chronic Non-communicable Disease Prevention and Control, Anhui Provincial Center for Disease Control and Prevention, Hefei, Anhui, 230601, China
| | - Zhi-Rong Liu
- Department of Chronic Non-communicable Disease Prevention and Control, Anhui Provincial Center for Disease Control and Prevention, Hefei, Anhui, 230601, China
| | - Guo-Cui Wu
- School of Nursing, Anhui Medical University, Hefei, 230032, Anhui, China
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2
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Zuo KL, Jiang T, Wu ZZ, Guo YY, Liu H. [Biosafety risk of laboratory-acquired infection and countermeasures based on human factors]. Zhonghua Liu Xing Bing Xue Za Zhi 2023; 44:1309-1315. [PMID: 37661626 DOI: 10.3760/cma.j.cn112338-20230214-00075] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 09/05/2023]
Abstract
Biosafety of pathogenic microbiology laboratories generally highlights the use of protective equipment, procedures, and operating practices to protect personnel and the environment from potentially hazardous biological materials. Under the current complex situation where traditional and non-traditional biosafety issues coexist, laboratory-acquired infection (LAI) of pathogenic microorganisms may cause illness, disability and even death. Pathogenic microorganisms may also be carried to the surrounding environment, causing community infection, which should be taken seriously. Analysis of LAI cases helps to understand the causes of exposure and learn lessons from post-exposure prophylaxis to be prepared and even prevent problems before they happen. Human factors cause most LAIs, laboratory activities related to aerosolization, laboratory activities related to sharps materials, low ability of personnel performing the work, and deficiencies in laboratory facilities or management are the four main factors. This study focuses on the human factors that lead to LAI, combined with confirmed cases, discusses the biosafety risks of pathogenic microorganism laboratories, reviews the development and evolution of biosafety laboratories and the current protection measures for experimenters, and accordingly puts forward countermeasures and suggestions.
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Affiliation(s)
- K L Zuo
- University of Science and Technology of China, School of Humanities and Social Sciences, Hefei 230026, China
| | - T Jiang
- National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - Z Z Wu
- University of Science and Technology of China, School of Humanities and Social Sciences, Hefei 230026, China
| | - Y Y Guo
- Office of Laboratory Management, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - H Liu
- University of Science and Technology of China, School of Humanities and Social Sciences, Hefei 230026, China State Key Laboratory of Virology, Wuhan 430072, China
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Luo JP, Lv KP, Tang JC, Wu ZZ, Liu YL, Luo JT, Lai YX, Yan M. Electropolishing influence on biocompatibility of additively manufactured Ti-Nb-Ta-Zr: in vivo and in vitro. J Mater Sci Mater Med 2023; 34:25. [PMID: 37179514 PMCID: PMC10183419 DOI: 10.1007/s10856-023-06728-0] [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] [Received: 10/12/2022] [Accepted: 04/11/2023] [Indexed: 05/15/2023]
Abstract
Balling defect of the additively manufactured titanium lattice implants easily leads to muscle tissue rejection, which might cause failure of implantation. Electropolishing is widely used in surface polishing of complex components and has potential to deal with the balling defect. However, a clad layer could be formed on the surface of titanium alloy after electropolishing, which may affect the biocompatibility of the metal implants. To manufacture lattice structured β-type Ti-Ni-Ta-Zr (TNTZ) for bio-medical applications, it is necessary to investigate the impact of electropolishing on material biocompatibility. In this study, animal experiments were conducted to investigate the in vivo biocompatibility of the as-printed TNTZ alloy with or without electropolishing; and proteomics technology was used to elaborate the results. The following conclusions were drawn: (a) a 30% oxalic acid electropolishing treatment was effective in solving balling defects, and ~21 nm amorphous clad layer would be formed on the surface of the material after polishing; (b) the electropolished TNTZ suggested decreased cell cytotoxicity and improved blood biocompatibility as compared to as-printed TNTZ; (c) the amorphous clad layer could make a barrier to prevent Ta and Zr ions from penetrating into the muscle tissue, and could form a good tissue regeneration at the implantation site during 4 weeks, indicating that the electropolished TNTZ has the potential as implants; and (d) the cells attached to the electropolished TNTZ showed higher antioxidant capacity but less proliferation than attached to as-printed TNTZ.
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Affiliation(s)
- J P Luo
- Centre for Translational Medicine Research & Development, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
- Shenzhen Distinta Interfacial Technology Co. Ltd, Shenzhen, 518106, China
| | - K P Lv
- Department of Interventional Radiology, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, 518020, China
| | - J C Tang
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
| | - Z Z Wu
- Department of Interventional Radiology, Shenzhen People's Hospital (The Second Clinical Medical College, Jinan University; The First Affiliated Hospital, Southern University of Science and Technology), Shenzhen, 518020, China
| | - Y L Liu
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China
| | - J T Luo
- School of Physics and Opto-electronic Engineering, Shenzhen university, Shenzhen, 518060, China
| | - Y X Lai
- Centre for Translational Medicine Research & Development, Shenzhen Institutes of Advanced Technology, Chinese Academy of Sciences, Shenzhen, 518055, China.
| | - M Yan
- Department of Materials Science and Engineering, Southern University of Science and Technology, Shenzhen, 518055, China.
- Jiaxing Research Institute, Southern University of Science and Technology, Jiaxing, 314001, China.
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Lu L, Ding L, Lu HY, Lei XN, Wu ZZ, Zhang R. Validation of the index for the core competence of nurses leading discharge planning for older patients in China †. Frontiers of Nursing 2023. [DOI: 10.2478/fon-2023-0006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/05/2023] Open
Abstract
Abstract
Objective
With the continuous advancement of aging in China, the number of older inpatients has increased sharply. Older patients have a high demand for planning their discharge services. Nurses serve as the leader of discharge planning for patients; there is a lack of reliable evaluation tool to evaluate the core competitiveness of nurses who implement discharge planning for older patients in China. The purpose of this study was to validate the index for the core competence of nurses who lead discharge planning for older patients developed by a project team through the Delphi method in the early stage.
Methods
A cross-sectional questionnaire survey with 3-stage stratified sampling was used to select 1075 nurses from 17 public general hospitals in Ningxia, China.
Results
The index consists of 4 first-level indicators, 13 second-level indicators, and 57 third-level indicators. The results show that 57 third-level indicators had good discrimination. With exploratory factor analysis (EFA), 4 common factors that explained 72.79% of the total variance were extracted. The Cronbach’s α was 0.98, and the retest reliability within a 14-d interval was 0.86. The confirmatory factor analysis (CFA) results show that the fit of the index structure was good. The criterion validity was 0.73.
Conclusions
The index presented excellent psychometric properties and can be used to measure the core competence of nurses in implementing discharge planning for older patients in China.
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Affiliation(s)
- Lu Lu
- a Department of General Thoracic surgery , General Hospital of Ningxia Medical University , Yinchuan, Ningxia , China
| | - Ling Ding
- b Respiratory and Critical Care Medicine, General Hospital of Ningxia Medical University , Yinchuan, Ningxia , China
| | - Hong-Yan Lu
- c Department of Nursing , General Hospital of Ningxia Medical University , Yinchuan, Ningxia , China
| | - Xin-Ning Lei
- a Department of General Thoracic surgery , General Hospital of Ningxia Medical University , Yinchuan, Ningxia , China
| | - Zhen-Zhen Wu
- d School of Nursing, Ningxia Medical University , Yinchuan City, Ningxia , China
| | - Rui Zhang
- c Department of Nursing , General Hospital of Ningxia Medical University , Yinchuan, Ningxia , China
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Wu ZD, Wang JC, Zhang HJ, Lin JQ, Wu ZZ, Zheng XW, Chen G. [Prognostic values of stromal tumor-infiltrating lymphocytes and lymphocyte-activation gene-3 in advanced gastric adenocarcinoma]. Zhonghua Bing Li Xue Za Zhi 2022; 51:1007-1012. [PMID: 36207914 DOI: 10.3760/cma.j.cn112151-20220412-00273] [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 density of stromal tumor-infiltrating lymphocytes (sTIL) and expression of lymphocyte-activation gene-3 (LAG-3) protein in advanced gastric adenocarcinomas, and to investigate the correlation of sTIL and LAG-3 with the prognosis in patients with advanced gastric adenocarcinoma. Methods: The clinicopathological characteristics and follow-up data of 260 patients with advanced gastric adenocarcinoma were collected at Fujian Cancer Hospital, from January 2011 to December 2014. The percentage of sTILs was reported semi-quantitatively using histological section evaluation, the LAG-3 protein was detected using immunohistochemistry, and the expression was correlated with the clinicopathological features and patient outcomes. Results: Among the 260 cases, high density of sTIL was detected in 173 cases (66.5%) while LAG-3 high expression was observed in 160 cases (61.5%). These cases were divided into four groups. Group Ⅰ: 48 cases (18.5%) were sTIL low/LAG-3 low; group Ⅱ: 52 cases (20.0%) were sTIL high/LAG-3 low; group Ⅲ: 39 cases (15.0%) were sTIL low/LAG-3 high; group Ⅳ: 121 cases (46.5%) were sTIL high/LAG-3 high. Kaplan-Meier survival analyses showed that patient prognoses were related to age, tumor size, tumor location, Lauren classification, perineural invasion, vascular invasion, TNM staging, postoperative adjuvant chemotherapy and molecular classification (P<0.05). Meanwhile, higher densities of sTIL and higher expression of LAG-3 were associated with better prognosis. Multivariate survival analysis showed age, tumor size, Lauren classification and postoperative adjuvant chemotherapy were independent prognostic factors for patient survival. The results showed a poor prognosis in low-sTIL/low-LAG-3 patients. Conclusions: Compared with low density of sTIL and low expression of LAG-3, high density of sTIL and high expression of LAG-3 are associated with better outcomes in patients with advanced gastric adenocarcinoma, respectively. Combined detecton of sTIL and LAG-3 may be more useful in gastric cancer than using either alone. Age, tumor size, Lauren classification and postoperative adjuvant chemotherapy are independent prognostic factors for patients with advanced gastric adenocarcinoma.
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Affiliation(s)
- Z D Wu
- Department of Pathology, Fujian Medical University Cancer Hospital, Fujian Cancer Hospital,Fuzhou 350014, China
| | - J C Wang
- Department of Pathology, Fujian Medical University Cancer Hospital, Fujian Cancer Hospital,Fuzhou 350014, China
| | - H J Zhang
- Department of Pathology, Fujian Medical University Cancer Hospital, Fujian Cancer Hospital,Fuzhou 350014, China
| | - J Q Lin
- Department of Pathology, Fujian Medical University Cancer Hospital, Fujian Cancer Hospital,Fuzhou 350014, China
| | - Z Z Wu
- Department of Pathology, Fujian Medical University Cancer Hospital, Fujian Cancer Hospital,Fuzhou 350014, China
| | - X W Zheng
- Department of Pathology, Fujian Medical University Cancer Hospital, Fujian Cancer Hospital,Fuzhou 350014, China
| | - G Chen
- Department of Pathology, Fujian Medical University Cancer Hospital, Fujian Cancer Hospital,Fuzhou 350014, China
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Zhu Y, Hoh HY, Qian S, Sun C, Wu Z, Huang Z, Wang L, Batmunkh M, Lai C, Zhang S, Zhong YL. Ultrastable Zinc Anode Enabled by CO 2-Induced Interface Layer. ACS Nano 2022; 16:14600-14610. [PMID: 36067416 DOI: 10.1021/acsnano.2c05124] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
Aqueous Zn-ion batteries (AZIBs), being safe, inexpensive, and pollution-free, are a promising candidate for future large-scale sustainable energy storage. However, in a conventional AZIBs setup, the Zn metal anode suffers oxidative corrosion, side reactions with electrolytes, disordered dendrite growth during operation, and consequently low efficiency and short lifespan. In this work, we discover that purging CO2 gas into the electrolyte could address these issues by eliminating dissolved O2, inhibiting side reactions by buffering the local pH change, and preventing dendrite growth by inducing the in situ formation of a ZnCO3 solid electrolyte interphase layer. Moreover, the CO2-purged electrolyte could enable a highly reversible plating/stripping behavior with a high Coulombic efficiency of 99.97% and an ultralong lifespan of 32,000 cycles (1600 h) even under an ultrahigh current density of 40 mA cm-2. Consequently, the CO2-purged symmetrical cells deliver long cycling stability at a high depth of discharge of 57%, while the CO2-purged Zn/V2O5 full cells exhibit outstanding capacity retention of 66% after 1000 cycles at a high current density of 5 A g-1. Our strategy, the simple introduction of CO2 gas into the electrolyte, could effectively mediate the zinc anode's critical issues and provide a scalable and cost-effective pathway for the commercialization of AZIBs.
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Affiliation(s)
- Yuxuan Zhu
- Queensland Micro- and Nanotechnology Centre, School of Environment and Science, Nathan Campus, Griffith University, Brisbane, Queensland 4111, Australia
| | - Hui Ying Hoh
- Centre for Catalysis and Clean Energy, School of Environment and Science, Gold Coast Campus, Griffith University, Brisbane, Queensland 4222, Australia
| | - Shangshu Qian
- Centre for Catalysis and Clean Energy, School of Environment and Science, Gold Coast Campus, Griffith University, Brisbane, Queensland 4222, Australia
| | - Chuang Sun
- School of Chemistry and Materials Chemistry, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China
| | - ZhenZhen Wu
- Centre for Catalysis and Clean Energy, School of Environment and Science, Gold Coast Campus, Griffith University, Brisbane, Queensland 4222, Australia
| | - Zimo Huang
- Queensland Micro- and Nanotechnology Centre, School of Environment and Science, Nathan Campus, Griffith University, Brisbane, Queensland 4111, Australia
| | - Liang Wang
- Centre for Catalysis and Clean Energy, School of Environment and Science, Gold Coast Campus, Griffith University, Brisbane, Queensland 4222, Australia
| | - Munkhbayar Batmunkh
- Queensland Micro- and Nanotechnology Centre, School of Environment and Science, Nathan Campus, Griffith University, Brisbane, Queensland 4111, Australia
| | - Chao Lai
- School of Chemistry and Materials Chemistry, Jiangsu Normal University, Xuzhou, Jiangsu 221116, China
| | - Shanqing Zhang
- Centre for Catalysis and Clean Energy, School of Environment and Science, Gold Coast Campus, Griffith University, Brisbane, Queensland 4222, Australia
| | - Yu Lin Zhong
- Queensland Micro- and Nanotechnology Centre, School of Environment and Science, Nathan Campus, Griffith University, Brisbane, Queensland 4111, Australia
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7
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Sang N, Gao RC, Zhang MY, Wu ZZ, Wu ZG, Wu GC. Causal Relationship Between Sleep Traits and Risk of Systemic Lupus Erythematosus: A Two-Sample Mendelian Randomization Study. Front Immunol 2022; 13:918749. [PMID: 35784289 PMCID: PMC9248809 DOI: 10.3389/fimmu.2022.918749] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2022] [Accepted: 05/09/2022] [Indexed: 01/10/2023] Open
Abstract
A correlation between sleep and systemic lupus erythematosus (SLE) has been observed in a number of prior investigations. However, little is known regarding the potential causative relationship between them. In this study, we selected genetic instruments for sleep traits from pooled data from published genome-wide association studies (GWAS). Independent genetic variants associated with six sleep-related traits (chronotype, sleep duration, short sleep duration, long sleep duration, insomnia, and daytime sleepiness) were selected as instrumental variables. A two-sample Mendelian randomization (TSMR) study was first conducted to assess the causal relationship between sleep traits and SLE (7219 cases versus 15,991 controls). The reverse MR analysis was then used to infer the causal relationship between SLE and sleep traits. Inverse variance weighted (IVW), MR Egger, Weighted median, and Weighted mode were applied to perform the primary MR analysis. MR Egger regression and the Mendelian randomization pleiotropy residual sum and outlier (MR-PRESSO) test were used to detect horizontal pleiotropy, and Cochran’s Q was used to detect heterogeneity. In studies of the effect of sleep traits on SLE risk, the IVW method demonstrated no causal relationship between chronotype, sleep duration, short sleep duration, long sleep duration, insomnia, daytime sleepiness and SLE risk. The remaining three methods agreed with the results of IVW. In studies of the effect of SLE on the risk of sleep traits, neither IVW, MR Egger, Weighted median, nor Weighted mode methods provided evidence of a causal relationship between SLE and the risk of sleep traits. Overall, our study found no evidence of a bidirectional causal relationship between genetically predicted sleep traits and SLE.
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Li XY, Huang K, Xu HG, Shen L, Zhan LP, Wu ZZ, Wu XJ, Huang QW, Huang WQ, Cheng B, Fang JP. [Cord blood transplantation with thiotepa containing myeloablative conditioning in a case of pediatric primary myelofibrosis]. Zhonghua Er Ke Za Zhi 2022; 60:471-473. [PMID: 35488645 DOI: 10.3760/cma.j.cn112140-20210919-00809] [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)
- X Y Li
- Department of Pediatrics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China
| | - K Huang
- Department of Pediatrics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China
| | - H G Xu
- Department of Pediatrics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China
| | - L Shen
- Department of Pediatrics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China
| | - L P Zhan
- Department of Pediatrics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China
| | - Z Z Wu
- Department of Pediatrics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China
| | - X J Wu
- Department of Pediatrics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China
| | - Q W Huang
- Department of Pediatrics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China
| | - W Q Huang
- Department of Pathology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China
| | - B Cheng
- Department of Pathology, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China
| | - J P Fang
- Department of Pediatrics, Sun Yat-sen Memorial Hospital, Sun Yat-sen University, Guangzhou 510120, China
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Wang S, Zhang MJ, Wu ZZ, Zhu SW, Wan SC, Zhang BX, Yang QC, Xiao Y, Chen L, Sun ZJ. GSDME Is Related to Prognosis and Response to Chemotherapy in Oral Cancer. J Dent Res 2022; 101:848-858. [PMID: 35148659 DOI: 10.1177/00220345211073072] [Citation(s) in RCA: 20] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Gasdermin E (GSDME), as the major executive protein of pyroptosis, has been considered to be linked to antitumor immunity in recent years. However, the role of GSDME in oral squamous cell carcinoma (OSCC) remains to be elucidated. Here, by using a human OSCC tissue microarray, human OSCC tissue, and Tgfbr1/Pten conditional knockout mice, we found that GSDME was strongly expressed in OSCC and that GSDME expression in primary tumors was higher than that in metastatic lymph nodes. In addition, GSDME expression in OSCC was positively related to better prognosis. Moreover, GSDME-mediated pyroptosis occurred upon stimulation with chemotherapy drugs, and functional knockdown of GSDME attenuated the cisplatin-induced antitumor effect. Consistent with these results, bioinformatic analysis indicated that GSDME expression was positively correlated with the sensitivity of a number of antitumor drugs approved by the US Food and Drug Administration. Inhibition of GSDME expression by small interfering RNA in SCC7 cells significantly increased the expression of the cancer stem cell markers, CD44 and ALDH1. Furthermore, multiplexed immunohistochemistry and flow cytometry indicated that the expression of GSDME positively correlated with tumor-infiltrating CD8+ T cells, granzyme B, and M1 phenotype macrophages. Collectively, these findings demonstrated that GSDME is a potential positive prognostic factor of OSCC, and GSDME-mediated pyroptosis induced by chemotherapy plays a role in antitumor response.
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Affiliation(s)
- S Wang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - M J Zhang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Z Z Wu
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - S W Zhu
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - S C Wan
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - B X Zhang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Q C Yang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Y Xiao
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - L Chen
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, China
| | - Z J Sun
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) & Key Laboratory of Oral Biomedicine Ministry of Education, School & Hospital of Stomatology, Wuhan University, Wuhan, China.,Department of Oral Maxillofacial-Head Neck Oncology, School and Hospital of Stomatology, Wuhan University, Wuhan, China
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10
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Li HQ, Chen XY, Yu XB, Chen LY, Zhang X, Jin L, Wu ZZ, Chen Z. [Clinicopathological features of NTRK3 gene rearrangement papillary thyroid carcinoma]. Zhonghua Bing Li Xue Za Zhi 2022; 51:126-131. [PMID: 35152631 DOI: 10.3760/cma.j.cn112151-20210826-00606] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Objective: To investigate the clinicopathological features and differential diagnosis of NTRK3 gene rearrangement thyroid papillary carcinoma (PTC). Methods: The PTC cases without BRAF V600E mutation were collected at Fujian Provincial Hospital South Branch from January 2015 to January 2020. The cases of NTRK3 gene rearrangement PTC were examined using immunohistochemistry and fluorescence in situ hybridization (FISH). The clinical data, histopathological characteristics, immunohistochemical features and molecular pathological changes were retrospectively analyzed. Data from the TCGA PTC dataset and the literature were also studied. Results: A total of 3 PTC cases harboring NTRK3 gene rearrangement were confirmed. All the patients were female, aged from 26,49,34 years. Histologically, two of them demonstrated a multinodular growth pattern. Only one case showed prominent follicular growth pattern; the other two tumors showed a mixture of follicular, papillary and solid growth patterns. All tumors showed a typical PTC nuclear manifestation, with some nuclear pleomorphism, vacuolated foci and oncocytic features. The characteristic formation of glomeruloid follicular foci was present in two cases which also showed psammoma bodies, and tumoral capsular or angiolymphatic invasion. The background thyroid parenchyma showed chronic lymphocytic thyroiditis. Mitotic rates were low, and no cases had any tumor necrosis. The pan-TRK and TTF1 testing was both positive in 3 cases, while S-100 and mammaglobin were both negative in them. FISH studies confirmed the NTRK3 gene rearrangement in all 3 cases. Studies on the TCGA datasets and literature revealed similar findings. Conclusions: NTRK3 gene rearrangement PTC is rare. It may be easily misdiagnosed due to the lack of histological and clinicopathological characteristics. Molecular studies such as pan-TRK immunostaining, FISH and even next-generation sequencing are needed to confirm the diagnosis. Immunohistochemistry of pan-TRK performed in the PTC cases without BRAF V600E mutation can be used as a good rapid-screening tool. With the emergence of pan-cancer tyrosine receptor kinase inhibitors, proper diagnosis of these tumors can help determine appropriate treatments and improve their outcomes.
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Affiliation(s)
- H Q Li
- Department of Pathology, Fujian Provincial Hospital South Branch, Fuzhou 350028, China
| | - X Y Chen
- Department of Pathology, Fujian Provincial Hospital, Fuzhou 350001, China
| | - X B Yu
- Department of Pathology, Fujian Provincial Hospital, Fuzhou 350001, China
| | - L Y Chen
- Department of Pathology, the First Affiliated Hospital of Fujian Medical University, Fuzhou 350005, China
| | - X Zhang
- Department of Pathology, Fujian Provincial Hospital, Fuzhou 350001, China
| | - L Jin
- Department of Pathology, Fujian Provincial Hospital, Fuzhou 350001, China
| | - Z Z Wu
- Department of Pathology, Fujian Provincial Hospital, Fuzhou 350001, China
| | - Zhizong Chen
- Department of Pathology, Fujian Provincial Hospital, Fuzhou 350001, China
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11
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Ding X, Jiang W, Hu YH, Jiang J, Wu Y, Xu CZ, Wu ZZ, Yu YF, Liu XJ, Li GW, Yin DP. [Study on the incidence of adult herpes zoster in Yichang city and its association with early-life famine exposure]. Zhonghua Yu Fang Yi Xue Za Zhi 2021; 55:1328-1331. [PMID: 34749477 DOI: 10.3760/cma.j.cn112150-20201110-01350] [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
Based on Yichang health big data platform, 850 608 patients from September 2018 to September 2019 were included in this study. According to the date of birth, the participants were divided into early childhood famine exposure group, fetal famine exposure group and non-famine exposure group. The incidence of adult herpes zoster (HZ) in Yichang city was analyzed, and the correlation between early life famine exposure and adult HZ was analyzed. In 2019, the crude incidence rate of adult HZ in Yichang was 6.83‰. The crude incidence rate of adult HZ in females (7.26‰) was higher than that in males (6.40‰). Compared with the non-famine exposure group, fetal famine exposure was associated with the incidence of adult HZ (OR=1.21; 95%CI: 1.01-1.45, P=0.041). After stratification by sex, fetal famine exposure was only found to be associated with the onset of adult HZ in females (OR=1.28, 95%CI:1.02-1.61, P=0.034).
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Affiliation(s)
- X Ding
- School of Public Health, North China University of Science and Technology, Tangshan 063210,China
| | - W Jiang
- Yichang Center for Disease Control and Prevention, Yichang 443003,China
| | - Y H Hu
- Chinese Center for Disease Control and Prevention, Beijing 102206,China Beijing Advanced Innovation Center for Big Data-Based Precision Medicine, Beihang University & Capital Medical University, Beijing 100083,China
| | - J Jiang
- Yichang Center for Disease Control and Prevention, Yichang 443003,China
| | - Y Wu
- School of Public Health, North China University of Science and Technology, Tangshan 063210,China
| | - C Z Xu
- Yichang Center for Disease Control and Prevention, Yichang 443003,China
| | - Z Z Wu
- Yichang Center for Disease Control and Prevention, Yichang 443003,China
| | - Y F Yu
- Yichang Center for Disease Control and Prevention, Yichang 443003,China
| | - X J Liu
- Yichang Center for Disease Control and Prevention, Yichang 443003,China
| | - G W Li
- Yichang Center for Disease Control and Prevention, Yichang 443003,China
| | - D P Yin
- Chinese Center for Disease Control and Prevention, Beijing 102206,China
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12
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Wu ZZ, Peng WC, Liu JX, Xu GZ, Wang DM. Effect of chromium methionine supplementation on lactation performance, hepatic respiratory rate and anti-oxidative capacity in early-lactating dairy cows. Animal 2021; 15:100326. [PMID: 34371467 DOI: 10.1016/j.animal.2021.100326] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2020] [Revised: 06/25/2021] [Accepted: 06/28/2021] [Indexed: 10/20/2022] Open
Abstract
Chromium may regulate dairy cow metabolism; a chelated formation of chromium methionine (Cr-Met) is available to the feed industry. The objective of this study was to investigate the effect of Cr-Met supplementation on lactation performance, hepatic respiratory rate and anti-oxidative capacity in early-lactating Holstein dairy cows. 64 multiparous cows were assigned to 16 blocks based on parity and milk yield and then the four cows in a block were randomly allocated to four treatment groups with 0, 4, 8 or 16 g/d of Cr-Met per cow supplemented to a basal diet. Cows were moved from an open dry lot to a naturally ventilated tie stall barn 2 weeks before treatment to adapt to this facility, fed and milked at 0630, 1400, and 1930 h every day. The experiment lasted for 12 weeks. Milk yield and composition were recorded weekly. Dry matter intake was measured every 2 weeks for a total of six times throughout the trial. The plasma variables were measured in weeks 4, 8 and 12 of the experiment. Supplementation of Cr-Met did not affect DM intake of cows. As the supplementation of Cr-Met increased, yields of milk, fat, energy corrected milk (P < 0.01) and lactose (P = 0.01) increased in a linear manner. In terms of plasma variables, insulin concentration decreased in a linear manner with Cr-Met supplementation. As for variables relating to hepatic respiration rate, concentrations of pyruvate and NAD in the plasma were increased in quadratic manners, and lactic dehydrogenase activity was linearly increased as Cr-Met feeding levels increased. Moreover, plasma glutathione peroxidase and superoxide dismutase activity were increased in a linear manner. In conclusion, our study suggested that Cr-Met supplementation improved lactation performance of early-lactating dairy cows through enhancing antioxidant capacity and hepatic cellular respiration.
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Affiliation(s)
- Z Z Wu
- Institute of Dairy Science, MoE Key Laboratory of Molecular Animal Nutrition, College of Animal Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - W C Peng
- Institute of Dairy Science, MoE Key Laboratory of Molecular Animal Nutrition, College of Animal Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - J X Liu
- Institute of Dairy Science, MoE Key Laboratory of Molecular Animal Nutrition, College of Animal Sciences, Zhejiang University, Hangzhou 310058, PR China
| | - G Z Xu
- Zinpro Corporation, Eden Prairie, MN 55344, United States
| | - D M Wang
- Institute of Dairy Science, MoE Key Laboratory of Molecular Animal Nutrition, College of Animal Sciences, Zhejiang University, Hangzhou 310058, PR China.
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13
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Ma K, Wu ZZ, Wang GL, Yang XP. Separation and purification of pyrroloquinoline quinone from Gluconobacter oxydans fermentation broth using supramolecular solvent complex extraction. Food Chem 2021; 361:130067. [PMID: 34062456 DOI: 10.1016/j.foodchem.2021.130067] [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] [Subscribe] [Scholar Register] [Received: 11/20/2020] [Revised: 04/07/2021] [Accepted: 05/08/2021] [Indexed: 11/16/2022]
Abstract
In this paper, new supramolecular extractants, which contained surfactant, alkane and alkanol, were designed and used to separate PQQ. After a series of tests, the optimal extractant composition was determined as benzalkalonium (C8-C16) chloride (BC): n-hexane:n-pentanol, and the highest extraction rate could reach 98%. The extraction equilibrium could be reached in five minutes. The mechanism of the extraction selectivity was inferred as an ion-pair and π-π complexation interaction between PQQ and BC, which was indicated by UV and fluorescence quenching experiments. To recycle the organic extractant, the extract was back-extracted with sodium chloride solution. After extraction, back extraction and crystallization, an isolated product with a purity of 97.5% was obtained from G. oxydans fermentation broth. The product was identified as PQQ by HPLC analysis and MS. Above all, the present research developed a simple and efficient method for the separation of PQQ from fermentation broth.
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Affiliation(s)
- Ke Ma
- School of Food and Biological Engineering, Henan Provincial Collaborative Innovation Center for Food Production and Safety, Zhengzhou University of Light Industry, Dongfeng Road, Zhengzhou 450002, People's Republic of China
| | - Zhen-Zhen Wu
- School of Food and Biological Engineering, Henan Provincial Collaborative Innovation Center for Food Production and Safety, Zhengzhou University of Light Industry, Dongfeng Road, Zhengzhou 450002, People's Republic of China
| | - Guang-Lu Wang
- School of Food and Biological Engineering, Henan Provincial Collaborative Innovation Center for Food Production and Safety, Zhengzhou University of Light Industry, Dongfeng Road, Zhengzhou 450002, People's Republic of China
| | - Xue-Peng Yang
- School of Food and Biological Engineering, Henan Provincial Collaborative Innovation Center for Food Production and Safety, Zhengzhou University of Light Industry, Dongfeng Road, Zhengzhou 450002, People's Republic of China.
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14
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Yu WQ, Ji NF, Ding MD, Gu CJ, Ma Y, Wu ZZ, Wang YL, Wu CJ, Dai GH, Chen Y, Jin RR, Tan YB, Yang Z, Zhou DM, Xian JC, Xu HT, Huang M. Characteristics of H7N9 avian influenza pneumonia: a retrospective analysis of 17 cases. Intern Med J 2021; 50:1115-1123. [PMID: 31707755 DOI: 10.1111/imj.14685] [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] [Subscribe] [Scholar Register] [Received: 05/28/2019] [Revised: 10/31/2019] [Accepted: 10/31/2019] [Indexed: 01/08/2023]
Abstract
BACKGROUND H7N9 avian influenza is an infection of public health concern, in part because of its high mortality rate and pandemic potential. AIMS To describe the clinical features of H7N9 avian influenza and the response to treatment. METHODS Clinical, radiological and histopathological data, and treatment-related of H7N9-infected patients hospitalised during 2014-2017 were extracted and analysed. RESULTS A total of 17 H7N9 patients (three females; mean age, 58.4 ± 13.7 years) was identified; of these six died. All patients presented with fever and productive cough; four patients had haemoptysis and 13 had chest distress and/or shortness of breath. Early subnormal white blood cell count and elevation of serum liver enzymes were common. Multilobar patchy shadows, rapid progression to ground-glass opacities, air bronchograms and consolidation were the most common imaging findings. Histopathological examination of lung tissue of three patients who died showed severe alveolar epithelial cell damage, with inflammatory exudation into the alveolar space and hyaline membrane formation; widened alveolar septae, prominent inflammatory cell infiltration; and hyperplasia of pneumocytes. Viral inclusions were found in the lung tissue of two patients. All patients received antiviral drugs (oseltamivir ± peramivir). Four patients carried the rs12252-C/C interferon-induced transmembrane protein-3 (IFITM3) genotype, while the others had the C/T genotype. CONCLUSIONS H7N9 virus infection causes human influenza-like symptoms, but may rapidly progress to severe pneumonia and even death. Clinicians should be alert to the possibility of H7N9 infection in high-risk patients. The presence of the IFITM3 rs12252-C genotype may predict severe illness.
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Affiliation(s)
- Wen-Qing Yu
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China.,Department of Infectious Diseases, Taizhou People's Hospital, Taizhou, China
| | - Ning-Fei Ji
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Ming-Dong Ding
- Department of Infectious Diseases, Taizhou People's Hospital, Taizhou, China
| | - Cheng-Jing Gu
- Department of Pharmacy, Taizhou People's Hospital, Taizhou, China
| | - Yuan Ma
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Zhen-Zhen Wu
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Yan-Li Wang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Chao-Jie Wu
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
| | - Gui-Hong Dai
- Department of Pathology, Taizhou People's Hospital, Taizhou, China
| | - Yan Chen
- Department of Pathology, Taizhou People's Hospital, Taizhou, China
| | - Rong-Rong Jin
- Department of Pathology, Taizhou People's Hospital, Taizhou, China
| | - Yi-Bin Tan
- Department of Nuclear Medicine, Taizhou People's Hospital, Taizhou, China
| | - Zhu Yang
- Department of Medical Microbiology and Immunology, Wannan Medical College, Wuhu, China
| | - Da-Ming Zhou
- Department of Infectious Diseases, Taizhou People's Hospital, Taizhou, China
| | - Jian-Chun Xian
- Department of Infectious Diseases, Taizhou People's Hospital, Taizhou, China
| | - Hong-Tao Xu
- Department of Infectious Diseases, Taizhou People's Hospital, Taizhou, China
| | - Mao Huang
- Department of Respiratory and Critical Care Medicine, The First Affiliated Hospital of Nanjing Medical University, Nanjing, China
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15
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Jin LL, Wu ZZ, Wang YL, Chen DS, Li S, Xiao M, Zhao X. Icotinib, an effective treatment option for patients with lung adenocarcinoma harboring compound EGFR L858R and A871G mutation. Invest New Drugs 2021; 39:1419-1421. [PMID: 33835358 DOI: 10.1007/s10637-021-01108-3] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2021] [Accepted: 03/22/2021] [Indexed: 10/21/2022]
Abstract
Compound epidermal growth factor receptor (EGFR) mutations are defined as double or multiple independent mutations of the EGFR tyrosine kinase domain (TKD), in which an EGFR-tyrosine kinase inhibitor (TKI)-sensitizing mutation is identified together with a mutation of unclarified clinical significance. Lung adenocarcinoma with compound EGFR mutation shows poor clinical response to EGFR-TKIs. Kobayashi et al. reported a non-small-cell lung cancer (NSCLC) patient whose tumor had EGFR exon21 L858R/A871G mutation presented rapid disease progression to erlotinib. However, in this case, we present an EGFR exon21 L858R/A871G mutation patient exerted significant benefit to icotinib, another first-generation EGFR-TKI, indicating that different EGFR-TKIs have diversiform sensitive sites and therapeutic effects, consistent mutation sites might achieve heterogeneous benefits from different EGFR-TKIs. Our case report provides promising EGFR-TKI for clinical treatment with EGFR exon21 L858R/A871G mutation in NSCLC. More dedicated efforts are needed to clarify their biologic effects on disease course and drug responsiveness.
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Affiliation(s)
- Lin-Ling Jin
- Department of Respiratory and Critical Care Medicine, Jiangsu Province Hospital and The First Affiliated Hospital with Nanjing Medical University , Nanjing, 210002, China
| | - Zhen-Zhen Wu
- Department of Respiratory and Critical Care Medicine, Jiangsu Province Hospital and The First Affiliated Hospital with Nanjing Medical University , Nanjing, 210002, China
| | - Yan-Li Wang
- Department of Respiratory and Critical Care Medicine, Jiangsu Province Hospital and The First Affiliated Hospital with Nanjing Medical University , Nanjing, 210002, China
| | - Dong-Sheng Chen
- The State Key Laboratory of Translational Medicine and Innovative Drug Development, Jiangsu Simcere Diagnostics Co., Ltd, Nanjing, 210002, China
| | - Si Li
- The State Key Laboratory of Translational Medicine and Innovative Drug Development, Jiangsu Simcere Diagnostics Co., Ltd, Nanjing, 210002, China
| | - Mingzhe Xiao
- The State Key Laboratory of Translational Medicine and Innovative Drug Development, Jiangsu Simcere Diagnostics Co., Ltd, Nanjing, 210002, China
| | - Xin Zhao
- Department of Respiratory and Critical Care Medicine, Jiangsu Province Hospital and The First Affiliated Hospital with Nanjing Medical University , Nanjing, 210002, China.
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16
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Wang YL, Wu ZZ, Zhang HR, Chen DS, Zhao X. Coexistence of a novel RGS18 downstream intergenic region ALK fusion and a THUMPD2-ALK fusion in a lung adenocarcinoma patient and response to crizotinib. Lung Cancer 2021; 154:216-218. [PMID: 33637344 DOI: 10.1016/j.lungcan.2021.02.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/27/2020] [Revised: 01/22/2021] [Accepted: 02/10/2021] [Indexed: 10/22/2022]
Affiliation(s)
- Yan-Li Wang
- Department of Respiratory and Critical Care Medicine, Jiangsu Province Hospital, Nanjing, 210002, China
| | - Zhen-Zhen Wu
- Department of Respiratory and Critical Care Medicine, Jiangsu Province Hospital, Nanjing, 210002, China
| | - Heng-Rui Zhang
- Department of Respiratory and Critical Care Medicine, Jiangsu Province Hospital, Nanjing, 210002, China
| | - Dong-Sheng Chen
- The State Key Laboratory of Translational Medicine and Innovative Drug Development, Jiangsu Simcere Diagnostics Co., Ltd, Nanjing, 210002, China
| | - Xin Zhao
- Department of Respiratory and Critical Care Medicine, Jiangsu Province Hospital, Nanjing, 210002, China.
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17
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Wang C, Liu H, Li K, Wu ZZ, Wu C, Yu JY, Gong Q, Fang P, Wang XX, Duan SM, Wang H, Gu Y, Hu J, Pan BX, Schmidt MV, Liu YJ, Wang XD. Tactile modulation of memory and anxiety requires dentate granule cells along the dorsoventral axis. Nat Commun 2020; 11:6045. [PMID: 33247136 PMCID: PMC7695841 DOI: 10.1038/s41467-020-19874-8] [Citation(s) in RCA: 14] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/12/2019] [Accepted: 11/02/2020] [Indexed: 12/21/2022] Open
Abstract
Touch can positively influence cognition and emotion, but the underlying mechanisms remain unclear. Here, we report that tactile experience enrichment improves memory and alleviates anxiety by remodeling neurons along the dorsoventral axis of the dentate gyrus (DG) in adult mice. Tactile enrichment induces differential activation and structural modification of neurons in the dorsal and ventral DG, and increases the presynaptic input from the lateral entorhinal cortex (LEC), which is reciprocally connected with the primary somatosensory cortex (S1), to tactile experience-activated DG neurons. Chemogenetic activation of tactile experience-tagged dorsal and ventral DG neurons enhances memory and reduces anxiety respectively, whereas inactivation of these neurons or S1-innervated LEC neurons abolishes the beneficial effects of tactile enrichment. Moreover, adulthood tactile enrichment attenuates early-life stress-induced memory deficits and anxiety-related behavior. Our findings demonstrate that enriched tactile experience retunes the pathway from S1 to DG and enhances DG neuronal plasticity to modulate cognition and emotion. Touch can positively modulate cognitive performance and emotional response. Here the authors demonstrate that enriched tactile experience improves memory and reduces anxiety in adult mice by remodelling the pathway from the primary somatosensory cortex to the dentate gyrus.
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Affiliation(s)
- Chi Wang
- Department of Neurobiology and Department of Psychiatry of Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 310058, Hangzhou, China.,NHC and CAMS Key Laboratory of Medical Neurobiology, MOE Frontier Science Center for Brain Research and Brain-Machine Integration, School of Brain Science and Brain Medicine, Zhejiang University, 310058, Hangzhou, China
| | - Hui Liu
- Department of Neurobiology and Department of Psychiatry of Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 310058, Hangzhou, China.,NHC and CAMS Key Laboratory of Medical Neurobiology, MOE Frontier Science Center for Brain Research and Brain-Machine Integration, School of Brain Science and Brain Medicine, Zhejiang University, 310058, Hangzhou, China
| | - Kun Li
- Department of Neurobiology and Department of Psychiatry of Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 310058, Hangzhou, China
| | - Zhen-Zhen Wu
- Department of Neurobiology and Department of Psychiatry of Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 310058, Hangzhou, China
| | - Chen Wu
- Department of Neurobiology and Department of Psychiatry of Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 310058, Hangzhou, China.,NHC and CAMS Key Laboratory of Medical Neurobiology, MOE Frontier Science Center for Brain Research and Brain-Machine Integration, School of Brain Science and Brain Medicine, Zhejiang University, 310058, Hangzhou, China
| | - Jing-Ying Yu
- Department of Neurobiology and Department of Psychiatry of Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 310058, Hangzhou, China
| | - Qian Gong
- Department of Neurobiology and Department of Psychiatry of Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 310058, Hangzhou, China
| | - Ping Fang
- Department of Neurobiology and Department of Psychiatry of Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 310058, Hangzhou, China
| | - Xing-Xing Wang
- Department of Anesthesiology, Technische Universität München/Klinikum Rechts der Isar, 81675, Munich, Germany
| | - Shu-Min Duan
- NHC and CAMS Key Laboratory of Medical Neurobiology, MOE Frontier Science Center for Brain Research and Brain-Machine Integration, School of Brain Science and Brain Medicine, Zhejiang University, 310058, Hangzhou, China
| | - Hao Wang
- NHC and CAMS Key Laboratory of Medical Neurobiology, MOE Frontier Science Center for Brain Research and Brain-Machine Integration, School of Brain Science and Brain Medicine, Zhejiang University, 310058, Hangzhou, China
| | - Yan Gu
- Center of Stem Cell and Regenerative Medicine, and Department of Neurology of the Second Affiliated Hospital, Zhejiang University School of Medicine, 310058, Hangzhou, China
| | - Ji Hu
- School of Life Science and Technology, ShanghaiTech University, 201210, Shanghai, China
| | - Bing-Xing Pan
- Laboratory of Fear and Anxiety Disorders, Institute of Life Science, Nanchang University, 330031, Nanchang, China
| | | | - Yi-Jun Liu
- Department of Neurobiology and Department of Psychiatry of Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 310058, Hangzhou, China
| | - Xiao-Dong Wang
- Department of Neurobiology and Department of Psychiatry of Sir Run Run Shaw Hospital, Zhejiang University School of Medicine, 310058, Hangzhou, China. .,NHC and CAMS Key Laboratory of Medical Neurobiology, MOE Frontier Science Center for Brain Research and Brain-Machine Integration, School of Brain Science and Brain Medicine, Zhejiang University, 310058, Hangzhou, China.
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18
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Wu ZZ, Zhang SJ, Hu Y. [Efficacy of olaparib combined with pembrolizumab in second-line treatment for extensive-stage small cell lung cancer]. Zhonghua Zhong Liu Za Zhi 2020; 42:590-593. [PMID: 32842449 DOI: 10.3760/cma.j.cn112152-20200319-00226] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To compare the efficacy and safety of olaparib in combination with pembrolizumab with pembrolizumab alone in second-line treatment for patients with extensive stage-small cell lung cancer (ES-SCLC) whose ages ranged from 40 to 80 years. Methods: From March 2017 to October 2019, 21 patients with progressed or relapsed small cell lung cancer after standard first line treatment were enrolled in this study. The olaparib/pembrolizumab group (n=11) was treated by olaparib 300mg twice per day combined with pembrolizumab 200mg once every 3 weeks, while pembrolizumab group was treated by pembrolizumab alone. Results: The objective response rate (ORR) of olaparib/pembrolizumab group and pembrolizumab group were 45.5% and 10.0%, respectively (P=0.149), and the disease control rate (DCR) were 81.8% and 70.0% (P=0.635). The median progression-free survival (PFS) were 5.93 months and 3.53 months (P=0.036), the median overall survival (OS) were 10.43 months and 8.43 months (P=0.063). The adverse reaction incidences of all grades were 90.9% and 70.0% (P=0.311), and the incidences of grade Ⅲ-Ⅴ including myelosuppression were 36.4% and 10.0% (P=0.311), gastrointestinal reaction were 9.1% and 10.0%, (P=1.000) and other immune-related adverse events were 18.2% and 30.0% (P=1.000). Further analysis showed the metastatic number (P=0.006), platinum sensitivity (P=0.036) and LDH level (P=0.022) significantly affected the ORR of olaparib/pembrolizumab therapy. Conclusion: Our preliminary study indicates that olaparib combined with pembrolizumab is an efficient and safe second-line treatment therapy for patients with ES-SCLC.
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Affiliation(s)
- Z Z Wu
- School of Medicine, Nankai University, Tianjin 300071, China
| | - S J Zhang
- Department of Medical Oncology, The First Medical Center of Chinese PLA General Hospital, Beijing 100853, China
| | - Y Hu
- School of Medicine, Nankai University, Tianjin 300071, China
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19
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Wu ZZ, Wang XD. [Progress on the role of synaptic cell adhesion molecules in stress]. Sheng Li Xue Bao 2020; 72:220-226. [PMID: 32328615] [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: 06/11/2023]
Abstract
Synaptic cell adhesion molecules (CAMs) are a type of membrane surface glycoproteins that mediate the structural and functional interactions between pre- and post-synaptic sites. Synaptic CAMs dynamically regulate synaptic activity and plasticity, and their expression and function are modulated by environmental factors. Synaptic CAMs are also important effector molecules of stress response, and mediate the adverse impact of stress on cognition and emotion. In this review, we will summarize the recent progress on the role of synaptic CAMs in stress, and aim to provide insight into the molecular mechanisms and drug development of stress-related disorders.
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Affiliation(s)
- Zhen-Zhen Wu
- Department of Neurobiology, Zhejiang University School of Medicine, Hangzhou 310058, China
| | - Xiao-Dong Wang
- Department of Neurobiology, Zhejiang University School of Medicine, Hangzhou 310058, China.
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20
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Zhang JQ, Yan L, Chen HQ, Wu ZZ. [Cyto-inactivation instantly induced by microwave ablation on thyroid nodules]. Zhonghua Yi Xue Za Zhi 2018; 98:3524-3527. [PMID: 30481903 DOI: 10.3760/cma.j.issn.0376-2491.2018.43.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the effect of microwave ablation on thyroid nodules cell activity by the reaction of key enzyme of cell activation. Methods: From November 2017 to February 2018, 104 patients with 120 thyroid nodules underwent ultrasound-guided microwave ablation at Super-minimally Invasive Medicals, Shanghai International Medical Center, aged 14-55 years, 42 males and 62 females.Twice core needle biopsy were performed before and after thermal ablation.The specimen were using hematoxylin and eosin (HE) staining and enzyme histochemical staining with include succinate dehydrogenase (SDH) and nicotinamide adeninedinucleotide phosphate diaphorase (NADPH-d), respectively, and observe under microscope. Results: Enzyme histochemical staining showed that the positive rate of SDH and NADPH-d in the marginal region and transitional region were 100% before ablation, and were 0% immediately after ablation.The positive rate of SDH and NADPH-d histochemical staining in the same area before and immediately after ablation was statistically significant (P<0.05). Shortly after microwave ablation, the tissue structure and cell morphology showed no obvious alteration in HE stained sections, but in sections with enzyme histochemical staining, the activity of SDH and NADPH-d in ablated tissue disappeared.The accuracy rate of pathologic diagnosis was 100% after ablation. Conclusions: SDH and NADPH-d enzyme activity may be better in evaluating the short-term efficacy of microwave ablation of thyroid nodules than HE staining.
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Affiliation(s)
- J Q Zhang
- Super-minimally Invasive Medicals, Shanghai International Medical Center, Shanghai 201210, China
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21
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Guo CY, Wu F, Wu ZZ, Smidman M, Cao C, Bostwick A, Jozwiak C, Rotenberg E, Liu Y, Steglich F, Yuan HQ. Evidence for Weyl fermions in a canonical heavy-fermion semimetal YbPtBi. Nat Commun 2018; 9:4622. [PMID: 30397192 PMCID: PMC6218469 DOI: 10.1038/s41467-018-06782-1] [Citation(s) in RCA: 48] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2018] [Accepted: 09/25/2018] [Indexed: 11/08/2022] Open
Abstract
The manifestation of Weyl fermions in strongly correlated electron systems is of particular interest. We report evidence for Weyl fermions in the heavy fermion semimetal YbPtBi from electronic structure calculations, angle-resolved photoemission spectroscopy, magnetotransport and calorimetric measurements. At elevated temperatures where 4f-electrons are localized, there are triply degenerate points, yielding Weyl nodes in applied magnetic fields. These are revealed by a contribution from the chiral anomaly in the magnetotransport, which at low temperatures becomes negligible due to the influence of electronic correlations. Instead, Weyl fermions are inferred from the topological Hall effect, which provides evidence for a Berry curvature, and a cubic temperature dependence of the specific heat, as expected from the linear dispersion near the Weyl nodes. The results suggest that YbPtBi is a Weyl heavy fermion semimetal, where the Kondo interaction renormalizes the bands hosting Weyl points. These findings open up an opportunity to explore the interplay between topology and strong electronic correlations.
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Affiliation(s)
- C Y Guo
- Center for Correlated Matter and Department of Physics, Zhejiang University, 310058, Hangzhou, China
| | - F Wu
- Center for Correlated Matter and Department of Physics, Zhejiang University, 310058, Hangzhou, China
| | - Z Z Wu
- Center for Correlated Matter and Department of Physics, Zhejiang University, 310058, Hangzhou, China
| | - M Smidman
- Center for Correlated Matter and Department of Physics, Zhejiang University, 310058, Hangzhou, China
| | - C Cao
- Department of Physics, Hangzhou Normal University, 310036, Hangzhou, China
| | - A Bostwick
- Advanced Light Source, E.O. Lawrence Berkeley National Lab, Berkeley, CA, 94720, USA
| | - C Jozwiak
- Advanced Light Source, E.O. Lawrence Berkeley National Lab, Berkeley, CA, 94720, USA
| | - E Rotenberg
- Advanced Light Source, E.O. Lawrence Berkeley National Lab, Berkeley, CA, 94720, USA
| | - Y Liu
- Center for Correlated Matter and Department of Physics, Zhejiang University, 310058, Hangzhou, China
| | - F Steglich
- Center for Correlated Matter and Department of Physics, Zhejiang University, 310058, Hangzhou, China
- Max Planck Institute for Chemical Physics of Solids, 01187, Dresden, Germany
| | - H Q Yuan
- Center for Correlated Matter and Department of Physics, Zhejiang University, 310058, Hangzhou, China.
- Collaborative Innovation Center of Advanced Microstructures, Nanjing University, 210093, Nanjing, China.
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Wu ZZ, Xu Q, Chen Q, Wang LW, Gu JP. [The diagnostic value of low dose of dual-source CT venography for deep venous thrombosis]. Zhonghua Yi Xue Za Zhi 2018; 98:3158-3161. [PMID: 30392274 DOI: 10.3760/cma.j.issn.0376-2491.2018.39.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Objective: To investigate the diagnostic value of low dose of dual-source CT venography examination for DVT (deep venous thrombosis). Methods: A total of 60 patients from Nanjing First Hospital with suspected DVT underwent indirect low dose CTV examination and treatment of DSA from January to December, 2017, and recording the radiation dose for CTV.DSA as the gold standard, calculate the sensitivity, specificity of CTV, kappa consistency test was used to exam the results of CTV and DSA.McNemar test was used to check statistical difference between two examinations. Results: A total of 60 patients, 780 blood vessels took CTV examinations, 326 were positive; 420 blood vessels took DSA examinations, 332 were positive.DSA as the gold standard, the sensitivity, specificity, of DVT detection by CTV were 96.2% and 92.6%, kappa=0.860, P<0.05, and the result of McNemar test was P=0.263. Conclusion: Low dose of dual-source indirect CTV examination for DVT can not only reduce radiation dose for the patients, but also has a high clinical value in the diagnosis of DVT.
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Zhao M, Duan XH, Wu ZZ, Gao CC, Wang N, Zheng ZH. Severe vitamin D deficiency affects the expression of autophagy related genes in PBMCs and T-cell subsets in active systemic lupus erythematosus. Am J Clin Exp Immunol 2017; 6:43-51. [PMID: 28695056 PMCID: PMC5498850] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 02/23/2017] [Accepted: 05/30/2017] [Indexed: 06/07/2023]
Abstract
We aimed to investigate whether vitamin D levels affect the expression of autophagy related genes (Atgs) and the counts of T-cell subsets in active systemic lupus erythematosus (SLE), as well as to assess the association between Atgs and T-cell subsets. Serum levels of 25(OH)D3, Atgs and T-cell subsets were measured in 50 patients with active SLE. Serum 25(OH)D3 levels <10 ng/ml and 10-30 ng/ml were defined as severe vitamin D deficiency and vitamin D insufficiency, respectively. Comparisons were made between values of severe vitamin D deficiency and vitamin D insufficiency patients, and the correlations between Atgs in PBMCs and T-cell subsets were carried out. mTOR mRNA levels were higher (P=0.036) and LC3 mRNA levels were lower (P<0.001) in severe vitamin D deficiency group compared to vitamin D insufficiency group. The counts of CD4+ T cells and the CD4/CD8 ratio were significantly higher in severe vitamin D deficiency group compared to vitamin D insufficiency group (P=0.001, P<0.001,respectively). LC3 mRNA levels correlated negatively with CD4+ T cells counts (r=-0.302, P=0.033), while correlated positively with CD8+ T cells counts (r=0.299, P=0.035). Serum 25(OH)D3 levels correlated negatively with the counts of CD4+ T cells (r=-0.423, P=0.002) and correlated positively with the counts of CD8+ T cells (r=0.318, P=0.024). Our results suggested that severe vitamin D deficiency affected the expression of Atgs in PBMCs and T-cell subsets in active SLE, indicating that vitamin D may affect T-cell subsets via regulating autophagy.
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Affiliation(s)
- Man Zhao
- Department of Rheumatology, The First Affiliated Hospital of Zhengzhou UniversityNo.1 Jianshe Road, Zhengzhou, Henan Province, People's Republic of China
| | - Xiu-Hong Duan
- Department of Rheumatology, The First Affiliated Hospital of Zhengzhou UniversityNo.1 Jianshe Road, Zhengzhou, Henan Province, People's Republic of China
| | - Zhen-Zhen Wu
- Department of Rheumatology, The First Affiliated Hospital of Zhengzhou UniversityNo.1 Jianshe Road, Zhengzhou, Henan Province, People's Republic of China
| | - Cong-Cong Gao
- Department of Rheumatology, The First Affiliated Hospital of Zhengzhou UniversityNo.1 Jianshe Road, Zhengzhou, Henan Province, People's Republic of China
| | - Na Wang
- Department of Rheumatology, The First Affiliated Hospital of Zhengzhou UniversityNo.1 Jianshe Road, Zhengzhou, Henan Province, People's Republic of China
| | - Zhao-Hui Zheng
- Department of Rheumatology, The First Affiliated Hospital of Zhengzhou UniversityNo.1 Jianshe Road, Zhengzhou, Henan Province, People's Republic of China
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Zhang YZ, Wu ZZ, Pan GL, Liu S, Gao XP. Microporous Carbon Polyhedrons Encapsulated Polyacrylonitrile Nanofibers as Sulfur Immobilizer for Lithium-Sulfur Battery. ACS Appl Mater Interfaces 2017; 9:12436-12444. [PMID: 28322551 DOI: 10.1021/acsami.7b00389] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Microporous carbon polyhedrons (MCPs) are encapsulated into polyacrylonitrile (PAN) nanofibers by electrospinning the mixture of MCPs and PAN. Subsequently, the as-prepared MCPs-PAN nanofibers are employed as sulfur immobilizer for lithium-sulfur battery. Here, the S/MCPs-PAN multicomposites integrate the advantage of sulfur/microporous carbon and sulfurized PAN. Specifically, with large pore volume, MCPs inside PAN nanofibers provide a sufficient sulfur loading. While PAN-based nanofibers offer a conductive path and matrix. Therefore, the electrochemical performance is significantly improved for the S/MCPs-PAN multicomposite with a suitable sulfur content in carbonate-based electrolyte. At the current density of 160 mA g-1sulfur, the S/MPCPs-PAN composite delivers a large discharge capacity of 789.7 mAh g-1composite, high Coulombic efficiency of about 100% except in the first cycle, and good capacity retention after 200 cycles. In particular, even at 4 C rate, the S/MCPs-PAN composite can still release the discharge capacity of 370 mAh g-1composite. On the contrary, the formation of the thick SEI layer on the surface of nanofibers with a high sulfur content are observed, which is responsible for the quick capacity deterioration of the sulfur-based composite in carbonate-based electrolyte. This design of the S/MCPs-PAN multicomposite is helpful for the fabrication of stable Li-S battery.
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Affiliation(s)
- Ye-Zheng Zhang
- Institute of New Energy Material Chemistry, School of Materials Science and Engineering, National Institute for Advanced Materials, Nankai University , Tianjin 300350, China
| | - Zhen-Zhen Wu
- Institute of New Energy Material Chemistry, School of Materials Science and Engineering, National Institute for Advanced Materials, Nankai University , Tianjin 300350, China
| | - Gui-Ling Pan
- Key Laboratory of Functional Polymer Materials of the Ministry of Education, Nankai University , Tianjin 300071, China
| | - Sheng Liu
- Institute of New Energy Material Chemistry, School of Materials Science and Engineering, National Institute for Advanced Materials, Nankai University , Tianjin 300350, China
| | - Xue-Ping Gao
- Institute of New Energy Material Chemistry, School of Materials Science and Engineering, National Institute for Advanced Materials, Nankai University , Tianjin 300350, China
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Wu ZZ, Zhang JJ, Gao CC, Zhao M, Liu SY, Gao GM, Zheng ZH. Expression of autophagy related genes mTOR, Becline-1, LC3 and p62 in the peripheral blood mononuclear cells of systemic lupus erythematosus. Am J Clin Exp Immunol 2017; 6:1-8. [PMID: 28123902 PMCID: PMC5259582] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 12/29/2016] [Accepted: 01/06/2017] [Indexed: 06/06/2023]
Abstract
To determine the expression of mTOR, Becline-1, LC3 and p62 in the peripheral blood mononuclear cells (PBMCs) of systemic lupus erythematosus (SLE) and assess their relationship with disease activity and immunologic features. The expression of mTOR, Becline-1, LC3 and p62 was detected by RT-PCR in 81 SLE subjects and 86 age- and sex-matched healthy controls. Data regarding demographics and clinical parameters were collected. Disease activity of SLE was evaluated according to the SLE Disease Activity Index (SLEDAI) score. Independent sample t-test was used to analyze the expression of mTOR, Becline-1, LC3, and p62 in the two groups. Pearson's or Spearman's correlation was performed to analyze their relationship with disease activity and immunologic features. The mean levels of Becline-1, LC3 and p62 mRNA were significantly higher in SLE patients than the controls (9.96×10-4 vs 7.38×10-4 for Becline-1 with P<0.001; 4.04×10-5 vs 2.62×10-5 for LC3 with P<0.001; 9.51×10-4 vs 7.59×10-4 for p62 with P=0.008). However, the levels of mTOR mRNA in SLE patients were not significantly different from that in controls. Correlation analysis showed that Becline-1, LC3 and p62 mRNA levels correlated positively with SLEDAI, IgG and ds-DNA, negatively with C3. Our results suggested that autophagosomes formation were activated and their degradation were blocked in SLE. Moreover, the maintenance of autophagy balance can improve disease activity and immune disorders in SLE patients.
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Affiliation(s)
- Zhen-Zhen Wu
- The First Affiliated Hospital of Zhengzhou University, Rheumatology No. 1 Jianshe Road, Zhengzhou, Henan Province, People's Republic of China
| | - Jun-Jun Zhang
- The First Affiliated Hospital of Zhengzhou University, Rheumatology No. 1 Jianshe Road, Zhengzhou, Henan Province, People's Republic of China
| | - Cong-Cong Gao
- The First Affiliated Hospital of Zhengzhou University, Rheumatology No. 1 Jianshe Road, Zhengzhou, Henan Province, People's Republic of China
| | - Man Zhao
- The First Affiliated Hospital of Zhengzhou University, Rheumatology No. 1 Jianshe Road, Zhengzhou, Henan Province, People's Republic of China
| | - Sheng-Yun Liu
- The First Affiliated Hospital of Zhengzhou University, Rheumatology No. 1 Jianshe Road, Zhengzhou, Henan Province, People's Republic of China
| | - Guan-Min Gao
- The First Affiliated Hospital of Zhengzhou University, Rheumatology No. 1 Jianshe Road, Zhengzhou, Henan Province, People's Republic of China
| | - Zhao-Hui Zheng
- The First Affiliated Hospital of Zhengzhou University, Rheumatology No. 1 Jianshe Road, Zhengzhou, Henan Province, People's Republic of China
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Sun ZH, Wu ZZ, Dang WM, Wang SW, Lin L, Chu HL, Zhou JP, Zhou TH, Li SH, Yu X. [An investigation of mental health in migrant workers in an enterprise]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2016; 34:591-595. [PMID: 27682666 DOI: 10.3760/cma.j.issn.1001-9391.2016.08.008] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the mental health status in migrant workers in a labor-intensive enterprise and related influencing factors. Methods: Typical sampling was used to perform an investigation in 910 migrant workers in a large foreign-funded labor-intensive enterprise in Shenzhen, China. All the respondents gave informed consent and completed the questionnaire independently and anonymously. The self-reported mental health status was evaluated using the Beck Anxiety Inventory, Beck Depression Inventory, and General Health Questionnaire. Results: Of all the migrant workers in this enterprise, 7.2% had a positive self-reported anxiety symptom, 25.4% had a moderate or severe self-reported depression symptom, and 76.4% had a poor self-reported general health status. Age had significant influence on the self-reported depression symptom (χ2=21.968, P<0.05) ; age did not have significant influence on the self-reported anxiety and general health status (χ2=6.616、12.498, both P>0.05) . The knowledge of occupational hazards had significant influence on mental health status (χ2Depression=47.289, χ2General health=21.087, both P<0.05) . The feeling of work had significant influence on self-reported depression and general health status (χ2Depression=52.406, χ2General health=17.327, both P<0.05) . Attention to self mental health had significant influence on self-reported depression (χ2=17.714, P<0.05) , and whether the person wanted to learn the knowledge of mental health had significant influence on self-reported anxiety (χ2= 6.145, P<0.05) . Conclusion: The self-reported mental health status in migrant workers is poor and is associated with age, worry about exposure to occupational hazard factors, emphasis on mental health knowledge, and a focus on personal mental health. Therefore, targeted occupational health education and occupational mental health education should be strengthened.
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Affiliation(s)
- Z H Sun
- Qiqihar Medical University, Qiqihar 161006, China
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Wu ZZ, Chen LS, Zhou R, Bin JP, Liao YL, Liao WJ. Metastasis-associated in colon cancer-1 in gastric cancer: Beyond metastasis. World J Gastroenterol 2016; 22:6629-6637. [PMID: 27547006 PMCID: PMC4970472 DOI: 10.3748/wjg.v22.i29.6629] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2016] [Revised: 04/17/2016] [Accepted: 05/04/2016] [Indexed: 02/06/2023] Open
Abstract
Metastasis-associated in colon cancer-1 (MACC1) is an oncogene that was first identified in colon cancer. The upstream and downstream of MACC1 form a delicate regulatory network that supports its tumorigenic role in cancers. Multiple functions of MACC1 have been discovered in many cancers. In gastric cancer (GC), MACC1 has been shown to be involved in oncogenesis and tumor progression. MACC1 overexpression adversely affects the clinical outcomes of GC patients. Regarding the mechanism of action of MACC1 in GC, studies have shown that it promotes the epithelial-to-mesenchymal transition and accelerates cancer metastasis. MACC1 is involved in many hallmarks of GC in addition to metastasis. MACC1 promotes vasculogenic mimicry (VM) via TWIST1/2, and VM increases the tumor blood supply, which is necessary for tumor progression. MACC1 also facilitates GC lymphangiogenesis by upregulating extracellular secretion of VEGF-C/D, indicating that MACC1 may be an important player in GC lymphatic dissemination. Additionally, MACC1 supports GC growth under metabolic stress by enhancing the Warburg effect. In conclusion, MACC1 participates in multiple biological processes inside and outside of GC cells, making it an important mediator of the tumor microenvironment.
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Meng Q, Yau LF, Lu JG, Wu ZZ, Zhang BX, Wang JR, Jiang ZH. Chemical profiling and cytotoxicity assay of bufadienolides in toad venom and toad skin. J Ethnopharmacol 2016; 187:74-82. [PMID: 27063985 DOI: 10.1016/j.jep.2016.03.062] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/05/2015] [Revised: 03/16/2016] [Accepted: 03/30/2016] [Indexed: 06/05/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Toad venom and toad skin have been widely used for treating various cancers in China. Bufadienolides are regarded as the main anticancer components of toad venom, but the difference on composition and anticancer activities of bufadienolides between toad venom and toad skin remains unclear. METHODS Fractions enriched with free and conjugated bufadienolides were prepared from toad venom and toad skin. Bufadienolides in each fraction were comprehensively profiled by using a versatile UHPLC-TOF-MS method. Relative contents of major bufadienolides were determined by using three bufogenins and one bufotoxin as marker compounds with validated UHPLC-TOF-MS method. Furthermore, cytotoxicity of the fractions was examined by MTT assay. RESULTS Two fractions, i.e., bufogenin and bufotoxin fractions (TV-F and TV-C) were isolated from toad venom, and one bufotoxin fraction (TS-C) was isolated from toad skin. Totally 56 bufadienolides in these three fractions were identified, and 29 were quantified or semi-quantified. Bufotoxins were identified in both toad venom and toad skin, whereas bufogenins exist only in toad venom. Bufalin-3-conjugated bufotoxins are major components in toad venom, whereas cinobufotalin and cinobufagin-3-conjugated bufotoxins are main bufotoxins in toad skin. MTT assay revealed potent cytotoxicity of all the fractions in an order of TV-F>TV-C>TS-C. CONCLUSIONS Our study represents the most comprehensive investigation on the chemical profiles of toad venom and toad skin from both qualitative and quantitative aspects. Eight bufotoxins were identified in toad skin responsible for the cytotoxicity for the first time. Our research provides valuable chemical evidence for the appropriate processing method, quality control and rational exploration of toad skin and toad venom for the development of anticancer medicines.
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Affiliation(s)
- Qiong Meng
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau, China
| | - Lee-Fong Yau
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau, China
| | - Jing-Guang Lu
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau, China
| | - Zhen-Zhen Wu
- Beijing Increase Pharm. Co. Ltd., Beijing, China
| | | | - Jing-Rong Wang
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau, China.
| | - Zhi-Hong Jiang
- State Key Laboratory of Quality Research in Chinese Medicine, Macau Institute for Applied Research in Medicine and Health, Macau University of Science and Technology, Macau, China.
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Zheng ZH, Gao CC, Wu ZZ, Liu SY, Li TF, Gao GM, Liu ZS. High prevalence of hypovitaminosis D of patients with autoimmune rheumatic diseases in China. Am J Clin Exp Immunol 2016; 5:48-54. [PMID: 27335701 PMCID: PMC4913223] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 12/15/2015] [Accepted: 03/27/2016] [Indexed: 06/06/2023]
Abstract
We aimed to determine the prevalence of hypovitaminosis D in patients with autoimmune rheumatic diseases (ARDs) in China and its association with demographic characteristics of the patients. We recruited 384 patients in this cross-sectional study including 121 cases of systemic lupus erythematosus (SLE), 131 rheumatoid arthritis (RA), 102 spondyloarthritis (SpA) and 30 other ARDs. For each patient, demographic information was collected and serum concentration of 25OHD3 was measured by electrochemiluminescence immunoassay (ECLIA). The multivariate logistic regression model was used to investigate the association between vitamin D deficiency and patient characteristics. The mean serum vitamin D level of the 384 patients was 18.91 (8.12) ng/mL, and the median age was 37.33 (12.01) yrs. Among these patients, 222 (57.81%) and 127 (33.07%) were found to be vitamin D deficiency and insufficiency, respectively. From the disease perspective, the percentages of insufficiency and deficiency were as follow: 97.52% and 84.30% in SLE, 87.02% and 48.85% in RA, 88.24% and 40.20% in SpA, 90.89% and 57.81% in other ARDs patients. The causative factors for vitamin D deficiency included SLE per se (OR 12.54, P < 0.001) and high body mass index (BMI) (OR 1.88, P < 0.001). However, the seniors were less likely to have vitamin D deficiency (OR 0.95, P = 0.005). No correlation was disclosed between vitamin D deficiency and gender or disease duration. Hypovitaminosis D is highly prevalent among autoimmune rheumatic diseases population in China. The SLE per se and the obesity are the risk factors for vitamin D deficiency. Clinicians are advised to supplement vitamin D in these patients.
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Affiliation(s)
- Zhao-Hui Zheng
- The First Affiliated Hospital of Zhengzhou University, Rheumatology No.1 Jianshe Road, Zhengzhou, Henan Province, People's Republic of China
| | - Cong-Cong Gao
- The First Affiliated Hospital of Zhengzhou University, Rheumatology No.1 Jianshe Road, Zhengzhou, Henan Province, People's Republic of China
| | - Zhen-Zhen Wu
- The First Affiliated Hospital of Zhengzhou University, Rheumatology No.1 Jianshe Road, Zhengzhou, Henan Province, People's Republic of China
| | - Sheng-Yun Liu
- The First Affiliated Hospital of Zhengzhou University, Rheumatology No.1 Jianshe Road, Zhengzhou, Henan Province, People's Republic of China
| | - Tian-Fang Li
- The First Affiliated Hospital of Zhengzhou University, Rheumatology No.1 Jianshe Road, Zhengzhou, Henan Province, People's Republic of China
| | - Guan-Min Gao
- The First Affiliated Hospital of Zhengzhou University, Rheumatology No.1 Jianshe Road, Zhengzhou, Henan Province, People's Republic of China
| | - Zhang-Suo Liu
- The First Affiliated Hospital of Zhengzhou University, Rheumatology No.1 Jianshe Road, Zhengzhou, Henan Province, People's Republic of China
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Huang HY, Wang W, Zhou JP, Li QL, Feng WT, Wu ZZ. [Metabolic syndrome and its influencing factors in professional automobile drivers in a company]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2016; 34:258-61. [PMID: 27514257 DOI: 10.3760/cma.j.issn.1001-9391.2016.04.005] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To investigate the prevalence of metabolic syndrome (MS)in 259 professional automobile drivers, and to put forward targeted suggestions on protection. METHODS In October 2014, 114 male bus drivers and 145 male taxi drivers in a transportation service company were enrolled as investigation group, and 121 non-operating male staff were enrolled as control group. Physical examination and a questionnaire survey were conducted for both groups, and the results were analyzed. RESULTS The bus drivers and taxi drivers had significantly higher prevalence rates of MS than the nonoperating staff(17.5%/13.1% vs 3.3%, P<0.05). The results of univariate logistic analysis showed that smoking(OR=2.58, 95%CI 1.14~5.88), exercise (OR=0.21, 95% CI 0.10~0.43), meal time (OR=0.27, 95% CI 0.13~0.59), and a family history of chronic diseases (OR=2.26, 95% CI 1.13~4.50)were associated with MS, and each independent variable showed significant differences between groups (P<0.05). Multivariate logistic regression analysis showed that with age remaining the same, smoking was the risk factor for MS in professional automobile drivers (OR=5.25, 95%CI 2.00~13.80), and meal time (20~40 min)(OR= 0.20, 95%CI 0.09~0.44)and exercise (OR=0.13, 95% CI 0.06~0.30)were protective factors against MS. CONCLUSION Professional automobile drivers have a higher prevalence rate of MS than non-operating staff, which should be taken seriously by working personnel.
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Affiliation(s)
- H Y Huang
- Shenzhen Prevention and Treatment Center for Occupational Disease, Shenzhen 518001, China
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Niu HF, Wei LJ, Lian Z, Zhao J, Li LJ, Wu ZZ, Liu JT. [Association between efficacy and molecular subtypes in breast cancer patients receiving neoadjuvant chemotherapy]. Zhonghua Zhong Liu Za Zhi 2016; 38:190-6. [PMID: 26988824 DOI: 10.3760/cma.j.issn.0253-3766.2016.03.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To investigate the association between pathological complete response (pCR), clinicopathological characteristics and clinical outcomes in breast cancer patients receiving neoadjuvant chemotherapy. METHODS Medical records of 221 patients who underwent neoadjuvant chemotherapy for breast cancer between January 2006 and December 2008 were retrospectively reviewed. Their clinicopathological features, response to neoadjuvant chemotherapy, survivals and prognostic factors were then analyzed. RESULTS The total pCR rate was 11.3% (25/221). The rate of pCR was 0%(0/12), 5.7%(6/106), 7.4%(2/27) and 16.9%(11/65) in the luminal A, luminal B, HER-2, and Basal-like subtypes, respectively. Statistically significant association was found between the pCR rate and the molecular substypes of breast cancer(P<0.05). The median 5-year disease free survival and the 5-year overall survival were 72 months and 79 months. The 5-year disease free survival rate and 5-year overall survival rate were 61.1% and 71.9% in all the 221 patients. The 5-year disease free survival rates of pCR and non-pCR patients were 84.0% and 58.2%, and the 5-year overall survival rates of pCR and non-pCR patients were 96.0% and 68.9%, respectively(P<0.05 for all). The multivariate survival analysis showed that clinical and pathological node stage and pCR are independent prognostic factors for the 5-year disease-free survival and 5-year total survival in patients with neoadjuvant chemotherapy (P<0.05 for both). CONCLUSIONS pCR is more frequently observed in HER-2 and basal-like breast cancer subtypes compared with the luminal breast cancer subtype. The status of clinical and pathological node status and pCR are independent prognostic factors in patients treated with neoadjuvant chemotherapy.
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Affiliation(s)
- H F Niu
- The Second Department of Breast Oncology, Tianjin Medical University, Cancer Institute and Hospital, National Clinical Research Center for Cancer, Key Laboratory of Breast Cancer Prevention and Therapy (Ministry of Education), Tianjin Key Laboratory of Cancer Prevention and Therapy, Tianjin 300060, China
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Affiliation(s)
- S J Zhang
- Department of Stomatology, Qilu Hospital of Shandong University, Jinan, China
| | - Z Z Wu
- Department of Stomatology, The 88th Hospital of PLA, Taian, China
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Feng R, Hou Y, Wu ZZ, Yang Y, Nie FM. Structures and Fluorescent Properties of Cadmium(II) Complexes with 1D and 2D Structures Based on Tridentate Benzimidazole Ligands. Z Anorg Allg Chem 2015. [DOI: 10.1002/zaac.201400511] [Citation(s) in RCA: 4] [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: 11/08/2022]
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Wu ZZ, Che ZW, Wang YS, Dong JD, Wu ML. Identification of Surface Water Quality along the Coast of Sanya, South China Sea. PLoS One 2015; 10:e0123515. [PMID: 25894980 PMCID: PMC4404355 DOI: 10.1371/journal.pone.0123515] [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: 11/19/2014] [Accepted: 02/13/2015] [Indexed: 11/21/2022] Open
Abstract
Principal component analysis (PCA) and cluster analysis (CA) are utilized to identify the effects caused by human activities on water quality along the coast of Sanya, South China Sea. PCA and CA identify the seasonality of water quality (dry and wet seasons) and polluted status (polluted area). The seasonality of water quality is related to climate change and Southeast monsoons. Spatial pattern is mainly related to anthropogenic activities (especially land input of pollutions). PCA reveals the characteristics underlying the generation of coastal water quality. The temporal and spatial variation of the trophic status along the coast of Sanya is governed by hydrodynamics and human activities. The results provide a novel typological understanding of seasonal trophic status in a shallow, tropical, open marine bay.
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Affiliation(s)
- Zhen-Zhen Wu
- State Key Laboratory of Tropical Oceanography and Key Laboratory of Marine Bio-resources Sustainable Utilization, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China
- Haikou Marine Environmental Monitoring Central Station, State Oceanic Administration, Haikou, China
| | - Zhi-Wei Che
- Haikou Marine Environmental Monitoring Central Station, State Oceanic Administration, Haikou, China
| | - You-Shao Wang
- State Key Laboratory of Tropical Oceanography and Key Laboratory of Marine Bio-resources Sustainable Utilization, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China
| | - Jun-De Dong
- State Key Laboratory of Tropical Oceanography and Key Laboratory of Marine Bio-resources Sustainable Utilization, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China
- Tropical Marine Biological Research Station in Hainan, Chinese Academy of Sciences, Sanya, China
| | - Mei-Lin Wu
- State Key Laboratory of Tropical Oceanography and Key Laboratory of Marine Bio-resources Sustainable Utilization, South China Sea Institute of Oceanology, Chinese Academy of Sciences, Guangzhou, China
- * E-mail:
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35
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Zhang ZB, Liu CY, Wu ZZ, Xing L, Li PF. Detection of nitric oxide in culture media and studies on nitric oxide formation by marine microalgae. Med Sci Monit 2006; 12:BR75-85. [PMID: 16449945] [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] [Received: 05/24/2005] [Accepted: 10/10/2005] [Indexed: 05/06/2023] Open
Abstract
BACKGROUND Multiple functions of nitric oxide (NO) in organisms and its special function and role in the atmosphere were investigated. In this study, marine microalga culture-medium NO concentrations were detected and studied in order to find the laws governing NO release by marine microalgae and relevant material was collected for discussion on the production mechanisms. MATERIAL/METHODS NO concentrations in culture media of the marine microalgae Platymonas subcordiformis, Skeletonema costatum, and Gymnodinium sp. were detected and other media parameters, such as nutrients concentrations, Chl-a, alga cell density, and pH, were also measured concurrently. RESULTS The NO concentrations in culture media of the marine microalgae Platymonas subcordiformis, Skeletonema costatum, and Gymnodinium sp. were detected and found to be about 10(-8)-10(-9) mol/l. The relationships between NO and nutrients and NO and pH were discussed. It was found that "NO" could serve as the message factor of microalga growth status. Experiments showed that factors affecting alga growth, such as trace elements, light, temperature, and salinity, all affected the culture-medium NO concentration. At the same time, an environmental stimulus could give rise to sudden NO peaks, with NO being a signal molecule of marine microalga stress response. CONCLUSIONS These results indicated that low concentrations of NO were produced by marine phytoplankton (microalgae) under the condition of normal growth. NO is a message factor of microalga growth and is also a signal molecule of stress response.
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Affiliation(s)
- Zheng-Bin Zhang
- Institute of Marine Chemistry, Ocean University of China, Qingdao, China.
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Abstract
A series of boronated, unnatural amino acids were prepared and their biodistribution determined in melanoma bearing mice. The unnatural amino acids were prepared utilizing recently developed borylation. The majority of the syntheses utilize metal catalyzed additions of diboron agents to unsaturated carbonyl compounds. Biodistribution studies in mice bearing melanoma tumors indicated that all the boronated amino acids were taken up by the melanoma tumors. The data for the cyclic five-membered ring analogue, 1-amino-3-boronocyclopentanecarboxylic acid, was most striking, exhibiting a nearly 22:1 ratio of boron concentration for tumor to brain at the 2 h time point, dropping to 7.3 after 6 h. The tumor to blood and tumor to skin ratios were also quite high. It is important to note that all of the amino acids were synthesized as racemic and diastereomeric mixtures. Thus there is a high probability that a single enantiomer of 1-amino-3-boronocyclopentanecarboxylic acid might exhibit far higher selectivity.
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Affiliation(s)
- G W Kabalka
- Departments of Chemistry and Radiology, The University of Tennessee, Knoxville, TN 37996-1600, USA.
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Xia BL, Wu ZZ, Li X, Li Q, Li ZW. [Inhibition of ATP-activated current by met-Enk in isolated DRG neurons of the rat]. Sheng Li Xue Bao 2001; 53:205-8. [PMID: 12589405] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
The present study aimed to explore modulation of ATP-activated currents (I(ATP)) by met-Enk in rat DRG neurons. I(ATP) was recorded using the whole-cell patch clamp technique. The majority of the neurons examined responded to ATP (90.0 percent;, 45/50) with inward currents. In the 45 ATP sensitive neurons three kinds of responses to application of met-Enk were distinguished: (l) inward currents (29/45), (2) outward currents (9/45), and (3) no effect (7/45). Pretreatment with met-Enk (10(-9)~10(-5) mol/L) suppressed I(ATP) (10(-4) mol/L) in 29 neurons responding to met-Enk with inward currents. The inhibition by met-Enk of I(ATP) could be blocked by naloxone (10(-7) mol/L) in a concentration-dependent manner. Met-Enk of 10(-9), 10(-8), 10(-7), 10(-6) and 10(-5) mol/L suppressed I(ATP) by l3.2+/-5.4 percent; (n=5); 39.2+/-8.6 percent; (n=8), 54.l+/-8.6 percent; (n=8),43.3+/-7.9 percent; (n=7) and 43.l+/-7.9 percent; (n=7) (mean+/-MSE), respectively. A comparison of concentration - response relations of ATP with and without preapplication of met-Enk indicated that after pretreatment with met-Enk (10(-7) mol/L) the curve shifted downward markedly with a decrease of 25 percent; of the maximum value of I(ATP) and unchanged K(d) value. The suppression of I(ATP) by met-Enk was reversed as evidenced by intracellular dialysis of H-9 by using the repatch technique. Taken together, it is suggested that the inhibition by met-Enk of I(ATP) is caused by activation of opiate receptor, which eventually results in phosphorylation of ATP receptor, mediated by modulation of G protein coupling and intracellular signal transduction.
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Affiliation(s)
- B L Xia
- Wuhan Professional Medical College, Wuhan 430016
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Wu ZZ, Zhang G, Long M, Wang HB, Song GB, Cai SX. Comparison of the viscoelastic properties of normal hepatocytes and hepatocellular carcinoma cells under cytoskeletal perturbation. Biorheology 2001; 37:279-90. [PMID: 11145074] [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: 02/18/2023]
Abstract
The viscoelastic properties of both hepatocytes and hepatocellular carcinoma (HCC) cells were measured by means of a micropipette aspiration technique. Experimental results were analyzed with a three-element standard linear solid model, in which an elastic element, K1, is in parallel with a Maxwell element composed of another elastic element, K2, in series with a viscous element, mu. Further, we investigated the relevance of viscoelastic properties of these two types of cells to the cytoskeleton structures by treating cells with three cytoskeletal perturbing agents, namely cytochalasin D (CD), colchicine (Col) and vinblastine (VBL). The results showed that the elastic coefficients, but not viscous coefficient of HCC cells (K1 = 103.6 +/- 12.6 N m-2, K2 = 42.5 +/- 10.4 N m-2, mu = 4.5 +/- 1.9 Pa s, n = 30), were significantly higher than the corresponding values for hepatocytes (K1 = 87.5 +/- 12.1 N m-2, K2 = 33.3 +/- 10.3 N m-2, mu = 5.9 +/- 3.0 Pa s, n = 24). Upon treatment with CD, the viscoelastic coefficients of both hepatocytes and HCC cells decreased uniformly, with magnitudes for the decrease in elastic coefficients of HCC cells (K1: 68.7 to 81.7 N m-2, 66.3 to 78.9%; K2: 34.5 to 37.1 N m-2, 81.2 to 87.3%) larger than those for normal hepatocytes (K1: 42.6 to 49.8 N m-2, 48.7 to 56.9%; K2: 17.2 to 20.4 N m-2, 51.7 to 61.3%). There was a smaller decrease in the viscous coefficient of HCC cells (2.0 to 3.4 Pa s, 44.4 to 75.6%) than that for hepatocytes (3.0 to 3.9 Pa s, 50.8 to 66.1%). Upon treatment with Col and VBL, the elastic coefficients of hepatocytes generally increased or tended to increase while those of HCC cells decreased. The differences in either the pattern or the magnitude of the effect of cytoskeletal perturbing agent on the viscoelastic properties between HCC cells and hepatocytes might possibly reflect differences in the state of the cytoskeleton structure and function, or in the cells' sensitivity to perturbing agent treatment between these two types of cells. Changes in the viscoelastic properties of cancer cells might well affect tumor cell invasion and metastasis as well as interactions between tumor cells and their micro-mechanical environments.
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Affiliation(s)
- Z Z Wu
- College of Bioengineering, Key Laboratory for Biomechanics and Tissue Engineering, State Ministry of Education, Chongqing University, Chongqing 400044, P.R. China.
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Li JL, Wang AQ, Wu ZZ. [Studies on non-anthraquinones in Rheum officinale Baill]. Zhongguo Zhong Yao Za Zhi 2000; 25:612-4. [PMID: 12516451] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
OBJECTIVE To investigate the non-anthraquinones from the root and rootstock of Rheum officinale. METHOD The chemical constituents were obtained from the 85% alcohol extract of the radix and rhizoma of R. officinale by column chromatography and identified by spectroscopic analysis. RESULT Ten non-anthraquinones were obtained, of which eight were identified by spectroscopic analysis as rheosmine, daucosterol, d-catechin, 6-cinnamoylisolindleyin, (-)-epicatechin-3-O-gallate, resveratrol-4'-O-beta-D-(6"-O-galloyl)-glucopyranoside, gallic acid, D-sorbitol. CONCLUSION Compounds rheosmine and D-sorbitol were obtained from the genus Rheum for the first time.
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Affiliation(s)
- J L Li
- Institute of Radiation Medicine, Academy of Military Medical Sciences, Beijing 100850, China
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40
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Ha XQ, Guo SH, Wu ZZ. [Hepatocyte growth factor is a renotrophic factor]. Sheng Li Ke Xue Jin Zhan 2000; 31:325-7. [PMID: 11372423] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 04/16/2023]
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41
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Pei XT, Wu ZZ. [Experimental studies and clinical application of a low molecular weight tumor suppressor on selective eliminating of leukemia cells]. Sheng Li Ke Xue Jin Zhan 1999; 30:181-3. [PMID: 12532818] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
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42
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Gong F, He FC, Wu ZZ. [Structure and function of plasminogen-related growth factor family]. Sheng Li Ke Xue Jin Zhan 1999; 30:45-8. [PMID: 12532849] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
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43
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Ma EP, Liu XZ, Liu MD, Han Y, Lui X, Wu ZZ. The effect of superoxide dismutase on the recovery of human bone marrow hemopoietic stem cells stored at 4 degreesC. Cryobiology 1998; 37:372-5. [PMID: 9917354 DOI: 10.1006/cryo.1998.2132] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
The effect of superoxide dismutase (SOD) on the recovery of human hemopoietic stem cells stored at 4 degreesC has been studied. Human bone marrow cells from cancer patients without hemopoietic diseases were stored at 4 degreesC for 1-7 days in RPMI 1640 medium containing 10% human AB serum with or without 6 U/ml of SOD. The recovery of colony-forming units of the following types were counted: granulocyte and macrophage type; megakaryocyte type; mixed granulocyte, erythrocyte, megakaryocyte, and macrophage type; and burst-forming units of erythrocytic type. The SOD groups recovered, respectively, 5.6, 5.3, 4.6, and 4.4 times as many colonies as the control group. This study demonstrates that the addition of SOD to hypothermic storage media may increase the recovery of hemopoietic stem cells.
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Affiliation(s)
- E P Ma
- Institute of Blood Transfusion, Beijing, Beijing, 100850, China
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Yang XM, Hu ZY, Xie L, Wu ZZ, Wu CT, He FC. [In vitro stimulation of HTC hepatoma cell growth by recombinant human augmenter of liver regeneration (ALR)]. Sheng Li Xue Bao 1997; 49:557-61. [PMID: 9813496] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
It was demonstrated that biologically active ALR could be expressed from its cDNA in transient expression experiments in cos-7 cells. The results showed that the cytosolic fraction from the transfected cells with constructed plasmids DNA stimulated of DNA synthesis of in vitro HTC cells in a dose dependent manner. This finding suggests that the HTC hepatoma cell line may be used as a target for bioassay of human ALR in vitro.
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Affiliation(s)
- X M Yang
- Beijing Institute of Radiation Medicine
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45
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Yang XM, Xie L, Wu ZZ, Wu CT, He FC. [Increase in the level of augmenter of liver regeneration mRNA in the rat regenerating liver after partial hepatectomy]. Sheng Li Xue Bao 1997; 49:599-601. [PMID: 9813504] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
Augmenter of liver regeneration (ALR) is a novel hepatic stimulator. After 70% of the rat liver was removed, ALR-like activity in the remnant liver began to increase within 24 h. In parallel with the activity, the ALR mRNA level in the remnant liver increased 12 h after the operation and reached a maximum in 24 h. These findings indicate that the liver itself produces ALR, which may be a hepatotropic factor acting as a trigger for liver regeneration.
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Affiliation(s)
- X M Yang
- Institute of Radiation Medicine, Academy of Military Medical Sciences, Beijing
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46
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Wen GY, Wu ZZ, He FC, Pei XT. [Studies of a 35 KDa substance from human fetal liver on the regulation of hematopoiesis]. Shi Yan Sheng Wu Xue Bao 1997; 30:231-9. [PMID: 11039018] [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: 02/18/2023]
Abstract
About 30%-40% of hematopoietic stem cells in human fetal liver of 3-5 months are in S phase of cell cycle, much higher than the ratio of 10% of that in adult bone marrow. The existance of highly active hematopoietic stem cell proliferation stimulators is probably its molecular basis. CFU-S "suicide rate" in rats was adopted to detect the effective substance. Through several steps of separation, we obtained a relatively purified substance of 35 kDa, termed it as FLS-4. CD 34 positive cord blood cells were sorted and assayed for their response to FLS-4 in 3H-TdR incorporation assay. The response to FLS-4 alone was approximately 1 times the background response seen with no factor added. In combination with IL-6 and IL-3 produced response that was 2.9 and 6.5 fold respectively greater than that observed with no factor added, but was weakly in comparison with the effects of SCF. In combination with GM-CSF or IL-3, FLS-4 can stimulate the formation of blast-colonies. The results indicate that the FLS-4 is very likely to be a novel hematopoietic stem cell proliferation stimulator. In physical or biological characteristics, it exhibited a unique character different from IL-3, IL-6, GM-CSF, SCF or FLT3 ligand those are known to have hematopoietic stem cell proliferation stimulating activity. During the period of active hematopoiesis in fetal liver, FLS-4 might be the candidate in triggering hematopoietic stem cells from resting G0 to S phase.
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Affiliation(s)
- G Y Wen
- Institute of Radiation Medicine, Beijing
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47
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Zhang QL, Wu ZZ, Cao JR, Xue HH, Pei XT, Wang LS, Xu L, Du ZH, Feng R. [Studies on the isolation, structure identification and biological function of two tumor cell suppressors of human fetal liver origin]. Sheng Li Xue Bao 1997; 49:327-32. [PMID: 9812819] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
Our previous work showed the existence of low molecular weight tumor suppressors in human fetal tissues. In this paper, two tumor cell suppressors were isolated and purified from methanol extract of human fetal liver by C18 reversed-phase medium pressure chromatography, gel filtration on Sephadex LH-20, and high-performance liquid chromatography, directed by suppression of growth of HL-60 cells. The structures of the suppressors were identified to be 7-ketocholesterol and 7-beta-hydroxycholesterol. Under the condition of in vitro agar plate culture, 7-ketocholesterol and 7-beta-hydroxycholesterol showed preferentially inhibitory effects on the growth of both human and murine leukemic cell lines including human HL-60 and murine S-180 cells, but less effective on the growth of normal human and murine bone marrow granulocyte-macrophage progenitors (CFU-GM).
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Affiliation(s)
- Q L Zhang
- Beijing Institute of Radiation Medicine
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48
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Liu CR, He FC, Wu ZZ. [Studies on characteristics of proliferation and differentiation of hematopoietic stem cells in mice]. Sheng Li Xue Bao 1997; 49:255-60. [PMID: 9812808] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
Abstract
By using Y chromosome specific sex-determining region (Sry) as a new cytogenetic marker and PCR technique, the characteristics of proliferation and differentiation of hematopoietic stem cells in mice were studied. Bone marrow cells from male mice were injected into lethally-irradiated female mice, PCR results indicated that all of the CFU-S were originated from donor. It was found that CFU-S was able to proliferate and differentiate into various hematopoietic cells in vivo during its transplantation. Whereas the fibroblasts within donor CFU-S and the fibroblasts from bone marrow in recipient mouse reestablished by donor CFU-S were shown to be originated from the recipient. The above data demonstrated that CFC-S from bone marrow in mice possessed the characteristics of hematopoietic stem cells but was not prone to differentiate into fibroblasts.
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Affiliation(s)
- C R Liu
- Institute of Developmental Biology, School of Life Sciences, Shandong University, Jinan
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49
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Guo SH, He FC, Wu ZZ. [Hepatocyte growth factor is an important signal exchanger between mesenchyme and epithelia during development]. Sheng Li Ke Xue Jin Zhan 1996; 27:249-51. [PMID: 9772366] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/09/2023]
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50
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Wang LS, Wu ZZ, He FC. [Genetic control of programmed cell death]. Sheng Li Ke Xue Jin Zhan 1996; 27:153-6. [PMID: 9592241] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
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