1
|
Zou M, He DM, Xu J, Cheng Q, Ouyang FZ, Chen LY, Chen QF, Ke CW, Ke BX. [Etiological characterization of invasive non-typhoid Salmonella strains in Guangdong Province from 2018 to 2022]. Zhonghua Liu Xing Bing Xue Za Zhi 2024; 45:520-528. [PMID: 38678347 DOI: 10.3760/cma.j.cn112338-20230809-00060] [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: 04/29/2024]
Abstract
Objective: To understand the serotype distribution, drug resistance and molecular characterization of invasive non-typhoid Salmonella (iNTS) in Guangdong Province from 2018 to 2022 and provide scientific evidence for the prevention and treatment of blood flow infection caused by Salmonella. Methods: Serological identification, antimicrobial susceptibility testing, multilocus sequence typing (MLST), and whole genome sequencing were performed on Salmonella isolated from blood and stool samples in Guangdong from 2018 to 2022. Simultaneously, annotated the sequencing results for drug resistance genes and virulence factors by a microbial gene annotation system. Results: The 136 iNTS strains were divided into 25 serotypes, and Salmonella enteritidis accounted for 38.24% (52/136). The OR of other iNTS serotypes were calculated with Salmonella typhimurium as the control. The OR values of Oreninburg, Rysson, and Pomona serotypes were the highest, which were 423.50, 352.92, and 211.75, respectively. The drug resistance rate of iNTS was 0.74%-66.91%, which was lower than that of non-iNTS (3.90%-77.21%). The main iNTS of drug resistance were ampicillin and tetracycline, with resistance rates of 66.91% (91/136) and 50.00% (68/136), respectively, while the resistance rates to ciprofloxacin (5.88%,8/136), ceftazidime (5.88%,8/136), gentamicin (5.13%,7/136) and cefoxitin (0.74%, 1/136) were relatively low. iNTS carried a variety of drug-resistance genes and virulence factors, but no standard virulence factor distribution has been found. MLST cluster analysis showed that iNTS was divided into 26 sequence types, and ST11 accounted for 38.24% (52/136). Conclusions: The iNTS strains in Guangdong were dominated by Salmonella enteritidis, of which three serotypes, Oreninburg, Rison, and Pomona, may be associated with a higher risk of invasive infection during 2018 to 2022. iNTS was sensitive to clinical first-line therapeutic drugs (cephalosporins and fluoroquinolones), with highly diverse sequences and clear phylogenetic branches. ST11 was the local dominant clone group.
Collapse
Affiliation(s)
- M Zou
- School of Public Health, Sun Yat-sen University, Guangzhou 510080, China Guangdong Provincial Center for Disease Control and Prevention, Guangdong Provincial Key Laboratory of Pathogen Detection for Emerging Infectious Disease Response, Guangzhou 510080,China
| | - D M He
- Guangdong Provincial Center for Disease Control and Prevention, Guangdong Provincial Key Laboratory of Pathogen Detection for Emerging Infectious Disease Response, Guangzhou 510080,China
| | - J Xu
- Guangdong Provincial Center for Disease Control and Prevention, Guangdong Provincial Key Laboratory of Pathogen Detection for Emerging Infectious Disease Response, Guangzhou 510080,China
| | - Q Cheng
- Guangdong Provincial Center for Disease Control and Prevention, Guangdong Provincial Key Laboratory of Pathogen Detection for Emerging Infectious Disease Response, Guangzhou 510080,China School of Public Health, Guangdong Pharmaceutical University, Guangzhou 510080,China
| | - F Z Ouyang
- Guangdong Provincial Center for Disease Control and Prevention, Guangdong Provincial Key Laboratory of Pathogen Detection for Emerging Infectious Disease Response, Guangzhou 510080,China
| | - L Y Chen
- Guangdong Provincial Center for Disease Control and Prevention, Guangdong Provincial Key Laboratory of Pathogen Detection for Emerging Infectious Disease Response, Guangzhou 510080,China School of Traditional Chinese Medicine, Guangzhou University of Chinese Medicine, Guangzhou 510080,China
| | - Q F Chen
- Guangdong Provincial Center for Disease Control and Prevention, Guangdong Provincial Key Laboratory of Pathogen Detection for Emerging Infectious Disease Response, Guangzhou 510080,China School of Public Health, Southern Medical University, Guangzhou 510080, China
| | - C W Ke
- Guangdong Provincial Center for Disease Control and Prevention, Guangdong Provincial Key Laboratory of Pathogen Detection for Emerging Infectious Disease Response, Guangzhou 510080,China
| | - B X Ke
- Guangdong Provincial Center for Disease Control and Prevention, Guangdong Provincial Key Laboratory of Pathogen Detection for Emerging Infectious Disease Response, Guangzhou 510080,China
| |
Collapse
|
2
|
Chen LY, Bao XJ, Yuan XN, Yu LY, He J. [Establishing and verifying the threshold value of HLA mixed antigen reagent screening test results]. Zhonghua Yi Xue Za Zhi 2024; 104:857-864. [PMID: 38462362 DOI: 10.3760/cma.j.cn112137-20231129-01230] [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: 03/12/2024]
Abstract
Objective: To establish the threshold value of human leukocyte antigen (HLA) mixed antigen reagent screening test results, and to verify it by HLA single antigen reagent confirmation test results. Methods: The results of 2 255 serum samples tested for HLA antibodies by HLA mixed antigen reagent in the department of HLA Laboratory, the First Affiliated Hospital of Soochow University from October 2017 to December 2021 were retrospectively analyzed. Among them, 1 139 samples were also tested by single antigen HLA Class-Ⅰ reagent and 1 116 samples were also tested by single antigen HLA Class-Ⅱ reagent. Based on the same antigens coated with both reagents, the Mean Fluorescence Intensity (MFI) and Nomalized Background ratio (NBG ratio) of 12 HLA Class-Ⅰ beads and 5 HLA Class-Ⅱ beads in the HLA mixed antigen reagent and the MFI of 77 anti-HLA class-Ⅰ antibodies and 35 anti-HLA class-Ⅱ antibodies detected by HLA single antigen reagent were recorded. The MFI and NBG ratio of HLA mixed antigen reagent beads in 1 139 or 1 116 samples were segmented according to the positive rate of antibodyies detected by the single antigen reagent corresponding to the antigens coated with each HLA mixed antigen reagent bead, and the results of the HLA mixed antigen screening test were verified by the HLA single antigen reagent confirmation test. Results: The threshold values of MFI and NBG ratio of HLA mixed antigen reagent's 17 beads were established. The MFI of No. 1 to No. 17 beads of HLA mixed antigen reagent ranged from 26.86 to 21 925.58, and the NBG ratio ranged from 0 to 434.65. According to the positive detection rate of HLA single antigen reagent corresponding to the coated antigens, the MFI and NBG ratio of the beads of HLA mixed antigen reagent were divided into positive interval, suspicious positive interval, suspicious negative interval and negative interval. The positive rates of anti-HLA class-Ⅰ antibodies by HLA mixed antigen reagent and single antigen HLA Class-Ⅰ reagent were 87.5% (997/1 139) and 66.3% (755/1 139). The positive rates of anti-HLA class-Ⅱ antibodies were 63.4% (707/1 116) and 44.9% (501/1 116). In the samples with suspicious negative, suspicious positive and positive results of HLA class-Ⅰ、Ⅱ antibodies detected by HLA mixed antigen reagent, the positive detection rates of single antigen HLA Class-Ⅰ reagent were 14.9% (17/114), 41.3% (145/351) and 91.3% (590/646), respectively. The positive detection rates of single antigen HLA Class-Ⅱ reagent were 15.5% (58/375), 26.5% (81/306) and 88.8% (356/401), respectively. Conclusions: In this study, the threshold values of MFI and NBG ratio of HLA mixed antigen reagent screening test are established, and the threshold values are verified by the results of HLA single antigen reagent confirmation test. HLA mixed reagent screening test can be used for screening of HLA antibodies, and if necessary, it should be combined with HLA single antigen confirmatory test for clinical detection of HLA antibodies.
Collapse
Affiliation(s)
- L Y Chen
- HLA Laboratory of Jiangsu Institute of Hematology, the First Affiliated Hospital of Soochow University, Suzhou 215031, China
| | - X J Bao
- HLA Laboratory of Jiangsu Institute of Hematology, the First Affiliated Hospital of Soochow University, Suzhou 215031, China
| | - X N Yuan
- HLA Laboratory of Jiangsu Institute of Hematology, the First Affiliated Hospital of Soochow University, Suzhou 215031, China
| | - L Y Yu
- HLA Laboratory of Jiangsu Institute of Hematology, the First Affiliated Hospital of Soochow University, Suzhou 215031, China
| | - J He
- HLA Laboratory of Jiangsu Institute of Hematology, the First Affiliated Hospital of Soochow University, Suzhou 215031, China
| |
Collapse
|
3
|
Zhou Y, Cai YM, Xiao YB, Wang H, Chen LY, Liang ZY, Shi XH. [Research advances in distinguishing primary squamous cell carcinoma from metastases affecting both the head and neck and lung]. Zhonghua Bing Li Xue Za Zhi 2024; 53:211-216. [PMID: 38281797 DOI: 10.3760/cma.j.cn112151-20230922-00205] [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: 01/30/2024]
Affiliation(s)
- Y Zhou
- Department of Pathology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Y M Cai
- Department of Pathology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Y B Xiao
- Department of Pathology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - H Wang
- Department of Pathology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - L Y Chen
- Department of Pathology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Z Y Liang
- Department of Pathology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - X H Shi
- Department of Pathology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| |
Collapse
|
4
|
Chen HF, Xiao BJ, Chen LY, OuYang WW, Zhang XL, He ZR, Fu LZ, Tang F, Tang XN, Liu XS, Wu YF. Lipid parameters, adipose tissue distribution and prognosis prediction in chronic kidney Disease patients. Lipids Health Dis 2024; 23:5. [PMID: 38185630 PMCID: PMC10773091 DOI: 10.1186/s12944-024-02004-4] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2023] [Accepted: 01/01/2024] [Indexed: 01/09/2024] Open
Abstract
BACKGROUND Lipid management in clinic is critical to the prevention and treatment of Chronic kidney disease (CKD), while the manifestations of lipid indicators vary in types and have flexible association with CKD prognosis. PURPOSE Explore the associations between the widely used indicators of lipid metabolism and their distribution in clinic and CKD prognosis; provide a reference for lipid management and inform treatment decisions for patients with non-dialysis CKD stage 3-5. METHODS This is a retrospective cohort study utilizing the Self-Management Program for Patients with Chronic Kidney Disease Cohort (SMP-CKD) database of 794 individuals with CKD stages 3-5. It covers demographic data, clinical diagnosis and medical history collection, laboratory results, circulating lipid profiles and lipid distribution assessments. Primary endpoint was defined as a composite outcome(the initiation of chronic dialysis or renal transplantation, sustained decline of 40% or more in estimated glomerular filtration rate (eGFR), doubled of serum creatinine (SCr) from the baseline, eGFR less than 5 mL/min/1.73m2, or all-cause mortality). Exposure variables were circulating lipid profiles and lipid distribution measurements. Association were assessed using Relative risks (RRs) (95% confidence intervals (CIs)) computed by multivariate Poisson models combined with least absolute shrinkage and selection operator (LASSO) regression according to categories of lipid manifestations. The best model was selected via akaike information criterion (AIC), area under curve (AUC), receiver operating characteristic curve (ROC) and net reclassification index (NRI). Subgroup analysis and sensitivity analysis were performed to assess the interaction effects and robustness.. RESULTS 255 individuals reached the composite outcome. Median follow-up duration was 2.03 [1.06, 3.19] years. Median age was 58.8 [48.7, 67.2] years with a median eGFR of 33.7 [17.6, 47.8] ml/min/1.73 m2. Five dataset were built after multiple imputation and five category-based Possion models were constructed for each dataset. Model 5 across five datasets had the best fitness with smallest AIC and largest AUC. The pooled results of Model 5 showed that total cholesterol (TC) (RR (95%CI) (per mmol/L) :1.143[1.023,1.278], P = 0.018) and percentage of body fat (PBF) (RR (95%CI) (per percentage):0.976[0.961,0.992], P = 0.003) were significant factors of composite outcome. The results indicated that comprehensive consideration of lipid metabolism and fat distribution is more critical in the prediction of CKD prognosis.. CONCLUSION Comprehensive consideration of lipid manifestations is optimal in predicting the prognosis of individuals with non-dialysis CKD stages 3-5.
Collapse
Affiliation(s)
- Hui-Fen Chen
- The Second Clinical College, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Bing-Jie Xiao
- The Second Clinical College, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Lin-Yi Chen
- The Second Clinical College, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China
| | - Wen-Wei OuYang
- Key Unit of Methodology in Clinical Research, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine (Guangdong Provincial Hospital of Chinese Medicine), Guangzhou, China
- Global Health - Health Systems and Policy, Department of Global Public Health, Karolinska Institute, Stockholm, Sweden
| | - Xian-Long Zhang
- Renal Division, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine (Guangdong Provincial Hospital of Chinese Medicine), Guangzhou, Guangdong, China
| | - Zhi-Ren He
- Renal Division, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine (Guangdong Provincial Hospital of Chinese Medicine), Guangzhou, Guangdong, China
| | - Li-Zhe Fu
- Chronic Disease Management Outpatient Clinic, The Second Affiliated Hospital of Guangzhou, University of Chinese Medicine (Guangdong Provincial Hospital of Chinese Medicine), Guangzhou, China
| | - Fang Tang
- Chronic Disease Management Outpatient Clinic, The Second Affiliated Hospital of Guangzhou, University of Chinese Medicine (Guangdong Provincial Hospital of Chinese Medicine), Guangzhou, China
| | - Xiao-Na Tang
- Bao'an Traditional Chinese Medicine Hospital, Guangzhou University of Chinese Medicine, Shenzhen, China
| | - Xu-Sheng Liu
- The Second Clinical College, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China.
- Renal Division, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine (Guangdong Provincial Hospital of Chinese Medicine), Guangzhou, Guangdong, China.
| | - Yi-Fan Wu
- The Second Clinical College, Guangzhou University of Chinese Medicine, Guangzhou, Guangdong, China.
- Renal Division, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine (Guangdong Provincial Hospital of Chinese Medicine), Guangzhou, Guangdong, China.
- Chronic Disease Management Outpatient Clinic, The Second Affiliated Hospital of Guangzhou, University of Chinese Medicine (Guangdong Provincial Hospital of Chinese Medicine), Guangzhou, China.
| |
Collapse
|
5
|
Zhou Y, Du J, Wu JQ, Zhu QR, Xie MZ, Chen LY, Liu YQ, Li W, Zhou TF, Lu QB. Impact of influenza virus infection on lung microbiome in adults with severe pneumonia. Ann Clin Microbiol Antimicrob 2023; 22:43. [PMID: 37264437 DOI: 10.1186/s12941-023-00590-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/01/2022] [Accepted: 04/27/2023] [Indexed: 06/03/2023] Open
Abstract
BACKGROUND Bacterial and viral infections are commonly implicated in the development of pneumonia. We aimed to compare the diversity and composition of lung bacteria among severe pneumonia patients who were influenza virus positive (IFVP) and influenza virus negative (IFVN). METHODS Bronchoalveolar lavage fluid specimens were procured from patients diagnosed with severe pneumonia to investigate the microbiome utilizing 16S-rDNA sequencing. The alpha diversity of the microbiome was evaluated employing Chao1, Shannon, and Simpson indexes, while the beta diversity was assessed using principal component analysis and principal coordinate analysis. Linear discriminant analysis effect size (LEfSe) was employed to determine the taxonomic differences between the IFVP and IFVN groups. RESULTS A total of 84 patients with 42 in the IFVP group and 42 in the IFVN group were enrolled. Slightly higher indexes of Shannon and Simpson were observed in the IFVP group without statistically significant difference. The dominant bacterial genera were Streptococcus, Klebsiella, Escherichia-Shigella in the IFVN group and Acinetobacter, Streptococcus, Staphylococcus in the IFVP group. Streptococcus pneumoniae and Acinetobacter baumannii were the most abundant species in the IFVN and IFVP groups, respectively. LEfSe analysis indicated a greater abundance of Klebsiella in the IFVN group. CONCLUSIONS Individuals with severe pneumonia infected with IFV exhibit heightened susceptibility to certain bacteria, especially Acinetobacter baumannii, and the underlying mechanism of the interaction between IFV and Acinetobacter baumannii in the progression of pneumonia needs further investigation.
Collapse
Affiliation(s)
- Yiguo Zhou
- Department of Laboratorial Science and Technology and Vaccine Research Center, School of Public Health, Peking University, No. 38, Xueyuan Road, Haidian District, Beijing, 100191, People's Republic of China
| | - Juan Du
- Department of Laboratorial Science and Technology and Vaccine Research Center, School of Public Health, Peking University, No. 38, Xueyuan Road, Haidian District, Beijing, 100191, People's Republic of China
| | - Jing-Qin Wu
- Department of Critical Care Medicine, Dongzhimen Hospital, Beijing University of Chinese Medicine, Beijing, People's Republic of China
| | - Quan-Rong Zhu
- Department of Laboratorial Science and Technology and Vaccine Research Center, School of Public Health, Peking University, No. 38, Xueyuan Road, Haidian District, Beijing, 100191, People's Republic of China
| | - Ming-Zhu Xie
- Department of Laboratorial Science and Technology and Vaccine Research Center, School of Public Health, Peking University, No. 38, Xueyuan Road, Haidian District, Beijing, 100191, People's Republic of China
| | - Lin-Yi Chen
- Department of Laboratorial Science and Technology and Vaccine Research Center, School of Public Health, Peking University, No. 38, Xueyuan Road, Haidian District, Beijing, 100191, People's Republic of China
| | - Ya-Qiong Liu
- Department of Laboratorial Science and Technology and Vaccine Research Center, School of Public Health, Peking University, No. 38, Xueyuan Road, Haidian District, Beijing, 100191, People's Republic of China
| | - Wei Li
- Department of Critical Care Medicine, Lanling People's Hospital, No. 12 Tashan Road, Lanying County, Linyi, 277799, People's Republic of China.
| | - Ting-Fa Zhou
- Department of Critical Care Medicine, Linyi People's Hospital, No. 27 Jiefang Road, Lanshan District, Linyi, 276100, People's Republic of China.
| | - Qing-Bin Lu
- Department of Laboratorial Science and Technology and Vaccine Research Center, School of Public Health, Peking University, No. 38, Xueyuan Road, Haidian District, Beijing, 100191, People's Republic of China.
| |
Collapse
|
6
|
Han AN, Xu R, Feng LY, Yang Y, Chen LY, Lin ZH. [Clinicopathological significance of SMC4 expression in pancreatic cancer]. Zhonghua Bing Li Xue Za Zhi 2023; 52:504-506. [PMID: 37106296 DOI: 10.3760/cma.j.cn112151-20230215-00133] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 04/29/2023]
Affiliation(s)
- A N Han
- Yanbian University Cancer Research Center, Key Laboratory of Pathobiology, State Ethnic Affairs Commission, Yanji 133000, China
| | - R Xu
- Yanbian University Cancer Research Center, Key Laboratory of Pathobiology, State Ethnic Affairs Commission, Yanji 133000, China
| | - L Y Feng
- Yanbian University Cancer Research Center, Key Laboratory of Pathobiology, State Ethnic Affairs Commission, Yanji 133000, China
| | - Y Yang
- Yanbian University Cancer Research Center, Key Laboratory of Pathobiology, State Ethnic Affairs Commission, Yanji 133000, China
| | - L Y Chen
- Yanbian University Cancer Research Center, Key Laboratory of Pathobiology, State Ethnic Affairs Commission, Yanji 133000, China
| | - Z H Lin
- Yanbian University Cancer Research Center, Key Laboratory of Pathobiology, State Ethnic Affairs Commission, Yanji 133000, China
| |
Collapse
|
7
|
Cui Y, Yang YN, Zheng RR, Xie MZ, Zhang WX, Chen LY, Du J, Yang Y, Xi L, Li H, Li HJ, Lu QB. Epidemiological characteristics of hand, foot, and mouth disease clusters during 2016-2020 in Beijing, China. J Med Virol 2022; 94:4934-4943. [PMID: 35655366 DOI: 10.1002/jmv.27906] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/02/2022] [Revised: 04/27/2022] [Accepted: 05/31/2022] [Indexed: 12/19/2022]
Abstract
Hand, foot, and mouth disease (HFMD) is an infectious disease that usually occurs in children under 5 years and is caused by a group of enteroviruses. This study aimed to investigate the epidemiological characteristics of HFMD clusters from 2016 to 2020 in Tongzhou, Beijing, and explored the genetic evolution of CV-A6. The HFMD case information came from the Information System of China Center for Disease Control and Prevention (CDC), as well as the clusters information verification and on-site investigation by Tongzhou CDC. ARIMA model was applied to forecast HFMD clusters in 2020. Totally 440 HFMD clusters were reported during 2016-2020. The large peak of the clusters occurred in April-July, followed by a smaller peak in October-November during 2016-2019. However, in 2020, the two peaks disappeared. The main site of HFMD clusters was childcare facilities (65.0%) and mostly occurred in urban areas (46.1%). The detection rate of CV-A6 was the highest (36.1%), and cases with CV-A6 infection had the highest proportion of fever. The phylogenetic analysis based on CV-A6 VP1 gene showed that the predominant strains mainly located in Group F during 2016-2017, while changed into Group A during 2018-2020. HFMD clusters presented seasonality, mainly located in childcare facilities and urban areas, and CV-A6 was the major causative agent. Targeted prevention and control measures should be taken to reduce HFMD clusters.
Collapse
Affiliation(s)
- Yan Cui
- Institute for Infectious Diseases and Endemic Diseases Prevention and Control, Beijing Tongzhou Center for Diseases Prevention and Control, Beijing, China
| | - Yan-Na Yang
- Institute for Infectious Diseases and Endemic Diseases Prevention and Control, Beijing Tongzhou Center for Diseases Prevention and Control, Beijing, China
| | - Ran-Ran Zheng
- Institute for Infectious Diseases and Endemic Diseases Prevention and Control, Beijing Tongzhou Center for Diseases Prevention and Control, Beijing, China
| | - Ming-Zhu Xie
- Department of Laboratorial Science and Technology & Vaccine Research Center, School of Public Health, Peking University, Beijing, China.,Global Center for Infectious Disease and Policy Research & Global Health and Infectious Diseases Group, Peking University, Beijing, China
| | - Wan-Xue Zhang
- Department of Laboratorial Science and Technology & Vaccine Research Center, School of Public Health, Peking University, Beijing, China.,Global Center for Infectious Disease and Policy Research & Global Health and Infectious Diseases Group, Peking University, Beijing, China
| | - Lin-Yi Chen
- Department of Laboratorial Science and Technology & Vaccine Research Center, School of Public Health, Peking University, Beijing, China.,Global Center for Infectious Disease and Policy Research & Global Health and Infectious Diseases Group, Peking University, Beijing, China
| | - Juan Du
- Department of Laboratorial Science and Technology & Vaccine Research Center, School of Public Health, Peking University, Beijing, China.,Global Center for Infectious Disease and Policy Research & Global Health and Infectious Diseases Group, Peking University, Beijing, China
| | - Yang Yang
- Institute for Infectious Diseases and Endemic Diseases Prevention and Control, Beijing Center for Diseases Prevention and Control, Beijing, China
| | - Lu Xi
- Institute for Infectious Diseases and Endemic Diseases Prevention and Control, Beijing Tongzhou Center for Diseases Prevention and Control, Beijing, China
| | - Hua Li
- Institute for Infectious Diseases and Endemic Diseases Prevention and Control, Beijing Tongzhou Center for Diseases Prevention and Control, Beijing, China
| | - Hong-Jun Li
- Institute for Infectious Diseases and Endemic Diseases Prevention and Control, Beijing Tongzhou Center for Diseases Prevention and Control, Beijing, China
| | - Qing-Bin Lu
- Department of Laboratorial Science and Technology & Vaccine Research Center, School of Public Health, Peking University, Beijing, China.,Global Center for Infectious Disease and Policy Research & Global Health and Infectious Diseases Group, Peking University, Beijing, China
| |
Collapse
|
8
|
Xu W, Du J, Wei TT, Chen LY, Yang XX, Bo T, Liu HY, Xie MZ, Zhao TS, Yang JL, Cui F, Chen WW, Lu QB. Alterations in bile acids as metabolic signatures in the patients with human adenovirus type 7 infection. Front Med (Lausanne) 2022; 9:896409. [PMID: 36160124 PMCID: PMC9489940 DOI: 10.3389/fmed.2022.896409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2022] [Accepted: 08/15/2022] [Indexed: 11/25/2022] Open
Abstract
Objectives The changes in metabolism by human adenovirus (HAdV) infection was unclear. The potential mechanism of HAdV-7 causing acute respiratory tract infection was explored. Methods Totally 35 patients with HAdV-7 infection, 32 asymptomatic cases with HAdV-7 and 14 healthy controls were enrolled from an outbreak of HAdV-7 in the army. The serum samples were analyzed by untargeted and targeted metabolomics. The effects of differential metabolites were verified on HAdV-7 replication in an A549 cell line. Results The untargeted metabolomics analysis revealed more significant changes in the classes of sphingolipids, polyketides, glycerolipids, fatty acyls, and carboxylic acids and their derivatives in the patients with HAdV-7 than in healthy controls. Two key metabolic pathways of secondary and primary bile acid biosynthesis were noted from pathway enrichment analysis. Targeted metabolomics analysis showed that the levels of unconjugated bile acids in the patients were significantly lower, while the levels of glyco- and tauro- conjugated bile acids in patients and asymptomatic cases were higher than those in the healthy controls. The profiles of cytokines and peripheral lymphocyte subsets obviously varied at different levels of bile acids, with significant differences after HAdV-7 infection. A cell verification test demonstrated that the replication of HAdV-7 significantly reduced when GCDCA and TCA were added. Conclusion Bile acids inhibited HAdV-7 replication in vitro. Alterations in bile acids was metabolic signatures of HAdV-7 infected subjects, and our results suggested bile acids might play protective roles against HAdV-7 infection.
Collapse
Affiliation(s)
- Wen Xu
- Department of Infectious Disease, The Fifth Medical Center of Chinese People’s Liberation Army General Hospital, National Clinical Research Center for Infectious Diseases, Beijing, China
| | - Juan Du
- Department of Laboratorial Science and Technology and Vaccine Research Center, School of Public Health, Peking University, Beijing, China
- Global Center for Infectious Disease and Policy Research, Peking University, Beijing, China
| | - Ting-Ting Wei
- Department of Laboratorial Science and Technology and Vaccine Research Center, School of Public Health, Peking University, Beijing, China
- Global Center for Infectious Disease and Policy Research, Peking University, Beijing, China
| | - Lin-Yi Chen
- Department of Laboratorial Science and Technology and Vaccine Research Center, School of Public Health, Peking University, Beijing, China
- Global Center for Infectious Disease and Policy Research, Peking University, Beijing, China
| | - Xin-Xin Yang
- Department of Infectious Disease, The Fifth Medical Center of Chinese People’s Liberation Army General Hospital, National Clinical Research Center for Infectious Diseases, Beijing, China
| | - Tu Bo
- Department of Infectious Disease, The Fifth Medical Center of Chinese People’s Liberation Army General Hospital, National Clinical Research Center for Infectious Diseases, Beijing, China
| | - Han-Yu Liu
- Department of Laboratorial Science and Technology and Vaccine Research Center, School of Public Health, Peking University, Beijing, China
- Global Center for Infectious Disease and Policy Research, Peking University, Beijing, China
| | - Ming-Zhu Xie
- Department of Laboratorial Science and Technology and Vaccine Research Center, School of Public Health, Peking University, Beijing, China
- Global Center for Infectious Disease and Policy Research, Peking University, Beijing, China
| | - Tian-Shuo Zhao
- Department of Laboratorial Science and Technology and Vaccine Research Center, School of Public Health, Peking University, Beijing, China
- Global Center for Infectious Disease and Policy Research, Peking University, Beijing, China
| | - Jun-Lian Yang
- Department of Infectious Disease, The Fifth Medical Center of Chinese People’s Liberation Army General Hospital, National Clinical Research Center for Infectious Diseases, Beijing, China
| | - Fuqiang Cui
- Department of Laboratorial Science and Technology and Vaccine Research Center, School of Public Health, Peking University, Beijing, China
- Global Center for Infectious Disease and Policy Research, Peking University, Beijing, China
- *Correspondence: Fuqiang Cui,
| | - Wei-Wei Chen
- Department of Infectious Disease, The Fifth Medical Center of Chinese People’s Liberation Army General Hospital, National Clinical Research Center for Infectious Diseases, Beijing, China
- Wei-Wei Chen,
| | - Qing-Bin Lu
- Department of Laboratorial Science and Technology and Vaccine Research Center, School of Public Health, Peking University, Beijing, China
- Global Center for Infectious Disease and Policy Research, Peking University, Beijing, China
- Qing-Bin Lu,
| |
Collapse
|
9
|
Geng W, Zhang LR, Li W, Chen LY, Ma XB, Liu ZH. [Comparative analysis of population distribution, severity, emotional, and cognitive characteristics among different side idiopathic tinnitus patients]. Zhonghua Yu Fang Yi Xue Za Zhi 2022; 56:980-984. [PMID: 35899352 DOI: 10.3760/cma.j.cn112150-20220413-00358] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Abstract
To provide basis for prevention and treatment by analyzing the clinical features, emotional and cognitive states and their correlations of idiopathic tinnitus. Cross-sectional study was used. Thirty-six right, 44 left, and 46 bilateral idiopathic tinnitus patients diagnosed in Beijing Tongren Hospital were prospectively enrolled from October, 2020 to February, 2022. The clinical data was recorded and the THI, DBI, STAI, and MoCA were evaluated. The clinical features and the incidence of severe tinnitus, hearing lose, anxiety, and cognitive impairment were compared by one-way ANOVA, Kruskal-Wallis H, and chi-square test. The correlation between tinnitus or hearing and emotional and cognitive states were evaluated by multivariable correlation analysis. There was no significant difference in age, BMI, years of education, tinnitus duration, and the incidence of hearing loss among groups (F=0.730,P=0.484;F=1.535,P=0.219;F=1.506,P=0.226;χ²=4.242,P=0.120;χ²=6.672,P=0.083). In right, left, and bilateral tinnitus patients, the number of severe tinnitus was 12, 7, and 20 cases and the incidence was 33.3%, 15.9%, and 43.5%; the number of depression was 13, 14, and 26 cases and incidence was 36.1%, 31.8%, and 53.5%; the number of trait anxiety was 3, 2, and 10 cases and the incidence was 8.3%, 4.5%, and 21.7%. Compared with left tinnitus patients, the incidence of severe tinnitus, depression, and trait anxiety was higher in bilateral tinnitus patients (χ²=8.139,P=0.004;χ²=5.558,P=0.018;χ²=5.753,P=0.007). The incidence of state anxiety and cognitive impairment were no significant difference among groups (χ²=0.142,P=0.931;χ²=1.338,P=0.512). The overall incidence of state anxiety and cognitive impairment were 16.7%(21/126) and 37.3%(47/126) respectively. There was positive correlation between THI score and BDI, S-AI, and T-AI scores (r=0.529,P=0.001; r=0.649,P<0.001; r=0.483,P=0.003) and negative correlation between THI and MoCA scores (r=-0.364,P=0.029) in right tinnitus group. The positive correlation was found between THI score and BDI, S-AI, and T-AI scores in left tinnitus group (r=0.508,P<0.001; r=0.506,P<0.001; r=0.357,P=0.017). The positive correlation between THI score and BDI, S-AI, and T-AI scores (r=0.753,P<0.001; r=0.527,P<0.001; r=0.536,P<0.001) and the positive correlation between tinnitus duration and MoCA score(r=0.334,P=0.023) were also found in bilateral tinnitus group.
Collapse
Affiliation(s)
- W Geng
- Department of Radiology, Fuxing Hospital, Capital Medical University, Beijing 100038, China
| | - L R Zhang
- Department of Radiology, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - W Li
- Department of Radiology, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - L Y Chen
- Department of Radiology, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - X B Ma
- Department of Otolaryngology Head and Neck Surgery, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| | - Z H Liu
- Department of Radiology, Beijing Tongren Hospital, Capital Medical University, Beijing 100730, China
| |
Collapse
|
10
|
Wang C, Chen LY, Lu QB, Cui F. Vaccination with the Inactivated Vaccine (Sinopharm BBIBP-CorV) Ensures Protection against SARS-CoV-2 Related Disease. Vaccines (Basel) 2022; 10:920. [PMID: 35746530 PMCID: PMC9227975 DOI: 10.3390/vaccines10060920] [Citation(s) in RCA: 7] [Impact Index Per Article: 3.5] [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: 04/28/2022] [Revised: 05/27/2022] [Accepted: 06/08/2022] [Indexed: 12/02/2022] Open
Abstract
Vaccination against coronavirus disease 2019 (COVID-19) has become an important public health solution. Developing a safe and effective vaccine against COVID-19 is a viable long-term solution to control the pandemic. As one of the two inactivated severe acute respiratory syndrome virus 2 (SARS-CoV-2) vaccines developed in China that entered the WHO emergency use list, Sinopharm BBIBP-CorV, an aluminum-hydroxide-adjuvanted, inactivated whole-virus vaccine, has been widely distributed, with more than 400 million doses administered in more than 40 countries. The evidence of the safety, efficacy, and effectiveness of BBIBP-CorV is gathered and reviewed. We further comment on one of the latest papers that disclosed the effectiveness results between BBIBP-CorV, rAd26-rAd5, and ChAdOx1.
Collapse
Affiliation(s)
- Chao Wang
- Department of Laboratorial Science and Technology & Vaccine Research Center, School of Public Health, Peking University, Beijing 100191, China; (C.W.); (L.-Y.C.)
- Global Center for Infectious Disease and Policy Research & Global Health and Infectious Diseases Group, Peking University, Beijing 100191, China
| | - Lin-Yi Chen
- Department of Laboratorial Science and Technology & Vaccine Research Center, School of Public Health, Peking University, Beijing 100191, China; (C.W.); (L.-Y.C.)
- Global Center for Infectious Disease and Policy Research & Global Health and Infectious Diseases Group, Peking University, Beijing 100191, China
| | - Qing-Bin Lu
- Department of Laboratorial Science and Technology & Vaccine Research Center, School of Public Health, Peking University, Beijing 100191, China; (C.W.); (L.-Y.C.)
- Global Center for Infectious Disease and Policy Research & Global Health and Infectious Diseases Group, Peking University, Beijing 100191, China
| | - Fuqiang Cui
- Department of Laboratorial Science and Technology & Vaccine Research Center, School of Public Health, Peking University, Beijing 100191, China; (C.W.); (L.-Y.C.)
- Global Center for Infectious Disease and Policy Research & Global Health and Infectious Diseases Group, Peking University, Beijing 100191, China
| |
Collapse
|
11
|
Xie MZ, Chen LY, Yang YN, Cui Y, Zhang SH, Zhao TS, Zhang WX, Du J, Cui FQ, Lu QB. Molecular Epidemiology of Herpangina Children in Tongzhou District, Beijing, China, During 2019-2020. Front Med (Lausanne) 2022; 9:822796. [PMID: 35547223 PMCID: PMC9082675 DOI: 10.3389/fmed.2022.822796] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/26/2021] [Accepted: 03/23/2022] [Indexed: 11/23/2022] Open
Abstract
Background The changing pattern of pathogen spectrum causing herpangina in the time of coronavirus disease 2019 (COVID-19) pandemic was unknown. The purpose of this study was to investigate the changes on the molecular epidemiology of herpangina children during 2019-2020 in Tongzhou district, Beijing, China. Method From January 2019 to December 2020, children diagnosed with herpangina were recruited by the staff from Tongzhou Center for Disease Control and Prevention (CDC) in Beijing. Viral RNA extraction from pharyngeal swabs was used for enterovirus (EV) detection and the complete VP1 gene was sequenced. The phylogenetic analysis was performed based on all VP1 sequences for EV genotypes. Result A total of 1,331 herpangina children were identified during 2019-2020 with 1,121 in 2019 and 210 in 2020, respectively. The predominant epidemic peak of herpangina children was in summer and autumn of 2019, but not observed in 2020. Compared to the number of herpangina children reported in 2019, it decreased sharply in 2020. Among 129 samples tested in 2019, 61 (47.3%) children were detected with EV, while 22.5% (20/89) were positive in 2020. The positive rate for EV increased since June 2019, peaked at August 2019, and decreased continuously until February 2020. No cases were observed from February to July in 2020, and the positive rate of EV rebounded to previous level since August 2020. Four genotypes, including coxsackievirus A6 (CV-A6, 9.3%), CV-A4 (7.8%), CV-A10 (2.3%) and CV-A16 (10.1%), were identified in 2019, and only three genotypes, including CV-A6 (9.0%), CV-A10 (6.7%) and CV-A16 (1.1%), were identified in 2020. The phylogenetic analysis showed that all CV-A6 strains from Tongzhou located in Group C, and the predominant strains mainly located in C2-C4 subgroups during 2016-2018 and changed into C1 subgroup during 2018-2020. CV-A16 strains mainly located in Group B, which consisting of strains widely distributed around the world. Conclusions The predominant genotypes gradually shifted from CV-A16, CV-A4 and CV-A6 in 2019 to CV-A6 in 2020 under COVID-19 pandemic. Genotype-based surveillance will provide robust evidence and facilitate the development of public health measures.
Collapse
Affiliation(s)
- Ming-Zhu Xie
- Department of Laboratorial Science and Technology and Vaccine Research Center, School of Public Health, Peking University, Beijing, China
| | - Lin-Yi Chen
- Department of Laboratorial Science and Technology and Vaccine Research Center, School of Public Health, Peking University, Beijing, China
| | - Yan-Na Yang
- Institute for Infectious Diseases and Endemic Diseases Prevention and Control, Beijing Tongzhou Center for Disease Control and Prevention, Beijing, China
| | - Yan Cui
- Institute for Infectious Diseases and Endemic Diseases Prevention and Control, Beijing Tongzhou Center for Disease Control and Prevention, Beijing, China
| | - Si-Hui Zhang
- Department of Laboratorial Science and Technology and Vaccine Research Center, School of Public Health, Peking University, Beijing, China
| | - Tian-Shuo Zhao
- Department of Laboratorial Science and Technology and Vaccine Research Center, School of Public Health, Peking University, Beijing, China
| | - Wan-Xue Zhang
- Department of Laboratorial Science and Technology and Vaccine Research Center, School of Public Health, Peking University, Beijing, China
| | - Juan Du
- Department of Laboratorial Science and Technology and Vaccine Research Center, School of Public Health, Peking University, Beijing, China
| | - Fu-Qiang Cui
- Department of Laboratorial Science and Technology and Vaccine Research Center, School of Public Health, Peking University, Beijing, China
| | - Qing-Bin Lu
- Department of Laboratorial Science and Technology and Vaccine Research Center, School of Public Health, Peking University, Beijing, China
| |
Collapse
|
12
|
Liu GZ, Sun HZ, Zhao L, Ma FY, Chen LY, Huang XR, Fang X, Yi ZG. [Effect of elevated atmospheric CO 2 concentration and temperature on volatile halogenated organic compound content in soils of Schima superba and Cunninghamia lanceolata seedlings]. Ying Yong Sheng Tai Xue Bao 2022; 33:757-764. [PMID: 35524529 DOI: 10.13287/j.1001-9332.202203.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Global changes caused by the increases of atmospheric CO2 concentration and temperature have important effects on soil biogeochemical processes. The synthesis and release of volatile halogenated organic compounds (VOXs) is an important pathway for soil to participate in the global material cycle and energy flow. In this study, Schima superba and Cunninghamia lanceolata seedlings in the southern subtropics were selected as the research objects. Four treatments, including control (CK), elevated CO2 concentration (EC), elevated temperature (ET) and elevated both factors (EC+ET) were set up. The effects of EC and ET on soil VOXs formation were studied by an open-top chamber system coupled with a purging and trapping gas chromatography/mass spectrometry. The results showed that VOXs content in the soil of S. superba seedlings was 0.065-0.252 ng·g-1, which was higher than that of C. lanceolata (0.038-0.136 ng·g-1). At the EC, ET and EC+ET treatments, VOXs contents were reduced in soils of both species. The effect of ET was the most significant, with the decrease rates of 74.2% and 72.1% in both soils, respectively. The change of VOXs content with increasing temperature mainly attributed to the changes of soil moisture and nitrogen content. The content of VOXs in the soils of S. superba seedlings decreased more than that of C. lanceolata under different treatments. In CK, EC, ET and EC+ET treatment, bromodichloromethane (BDCM) (27.5%, 36.7%, 32.9%, 32.6%) and tetrachloromethane (TCM) (9.0%, 16.8%, 22.7%, 15.8%) were the main VOXs in the soil of S. superba seedlings, respectively, while BDCM and dibromomethane (DBM) were the main VOXs in the soil of C. lanceolata seedlings. BDCM accounted for 31.9%, 38.2%, 40.9% and 37.2% of the VOXs content in each treatment, and DBM accounted for 17.9%, 16.5%, 19.2% and 16.0% of the VOXs content, respectively. Simulating elevated atmospheric CO2 concentration and temperature was conducive to more comprehensive reflection of the ecological effect of global climate change, and it could provide data support for improving the VOCs flux model.
Collapse
Affiliation(s)
- Gui-Zhen Liu
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Hao-Zhao Sun
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Lin Zhao
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Fang-Yuan Ma
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Lin-Yi Chen
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Xing-Ran Huang
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Xiong Fang
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| | - Zhi-Gang Yi
- Fujian Provincial Key Laboratory of Soil Environmental Health and Regulation, College of Resources and Environment, Fujian Agriculture and Forestry University, Fuzhou 350002, China
| |
Collapse
|
13
|
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.
Collapse
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
| |
Collapse
|
14
|
Wu XH, Yao ZQ, Zhao QQ, Chen S, Hu ZZ, Xie Z, Chen LY, Ji J, Chen F, Zhang XH, Xie QM. Development and Application of a Reverse-transcription Recombinase-Aided Amplification Assay for Subgroup J Avian Leukosis Virus. Poult Sci 2022; 101:101743. [PMID: 35240352 PMCID: PMC8889409 DOI: 10.1016/j.psj.2022.101743] [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: 11/24/2021] [Revised: 01/15/2022] [Accepted: 01/17/2022] [Indexed: 11/29/2022] Open
Abstract
Subgroup J Avian leukosis virus (ALV-J) is an important pathogen of poultry tumor diseases. Since its discovery, it has caused significant economic losses to the poultry industry. Thus, the rapid detection of molecular level with strong specificity is particularly important whether poultry are infected with ALV-J. In this study, we designed primers and probe for real-time fluorescent reverse-transcription recombinase-aided amplification assay (RT-RAA) based on the ALV-J gp85 sequence. We had established a real-time fluorescent RT-RAA method and confirmed this system by verifying the specificity and sensitivity of the primers and probe. In addition, repeatability tests and clinical sample regression tests were used for preliminary evaluation of this detection method. The sensitivity of established method was about 101 copies/μL, and the repeatability of the CV of the CT value is 4%, indicating repeatability is good. Moreover, there was no cross-reactivity with NDV, IBV, IBDV, H9N2, MDV, and REV, and other avian leukosis virus subgroups, such as subgroups A, B, C, D, K and E. Importantly, the real-time fluorescent RT-RAA completed the test within 30 min at a constant temperature of 41°C. Forty-two clinical samples with known background were tested, and the test results were coincided with 100%. Overall, these results suggested that the real-time fluorescent RT-RAA developed in this study had strong specificity, high sensitivity, and good feasibility. The method is simple, easy, and portable, that is suitable for clinical and laboratory diagnosis, and provides technical support for the prevention and control of ALV-J.
Collapse
Affiliation(s)
- X H Wu
- Heyuan Branch, Guangdong Provincial Laboratory of Lingnan Modern Agricultural Science and Technology, College of Animal Science, South China Agricultural University, Guangzhou 510642, P. R. China; Guangdong Engineering Research Center for Vector Vaccine of Animal Virus, Guangzhou 510642, P. R. China; South China Collaborative Innovation Center for Poultry Disease Control and Product Safety, Guangzhou 510642, P. R. China
| | - Z Q Yao
- Heyuan Branch, Guangdong Provincial Laboratory of Lingnan Modern Agricultural Science and Technology, College of Animal Science, South China Agricultural University, Guangzhou 510642, P. R. China; Guangdong Engineering Research Center for Vector Vaccine of Animal Virus, Guangzhou 510642, P. R. China; South China Collaborative Innovation Center for Poultry Disease Control and Product Safety, Guangzhou 510642, P. R. China
| | - Q Q Zhao
- Heyuan Branch, Guangdong Provincial Laboratory of Lingnan Modern Agricultural Science and Technology, College of Animal Science, South China Agricultural University, Guangzhou 510642, P. R. China; Guangdong Engineering Research Center for Vector Vaccine of Animal Virus, Guangzhou 510642, P. R. China; South China Collaborative Innovation Center for Poultry Disease Control and Product Safety, Guangzhou 510642, P. R. China
| | - S Chen
- Heyuan Branch, Guangdong Provincial Laboratory of Lingnan Modern Agricultural Science and Technology, College of Animal Science, South China Agricultural University, Guangzhou 510642, P. R. China; Guangdong Engineering Research Center for Vector Vaccine of Animal Virus, Guangzhou 510642, P. R. China; South China Collaborative Innovation Center for Poultry Disease Control and Product Safety, Guangzhou 510642, P. R. China
| | - Z Z Hu
- Heyuan Branch, Guangdong Provincial Laboratory of Lingnan Modern Agricultural Science and Technology, College of Animal Science, South China Agricultural University, Guangzhou 510642, P. R. China; Guangdong Engineering Research Center for Vector Vaccine of Animal Virus, Guangzhou 510642, P. R. China; South China Collaborative Innovation Center for Poultry Disease Control and Product Safety, Guangzhou 510642, P. R. China
| | - Z Xie
- Heyuan Branch, Guangdong Provincial Laboratory of Lingnan Modern Agricultural Science and Technology, College of Animal Science, South China Agricultural University, Guangzhou 510642, P. R. China; Guangdong Engineering Research Center for Vector Vaccine of Animal Virus, Guangzhou 510642, P. R. China; South China Collaborative Innovation Center for Poultry Disease Control and Product Safety, Guangzhou 510642, P. R. China
| | - L Y Chen
- Heyuan Branch, Guangdong Provincial Laboratory of Lingnan Modern Agricultural Science and Technology, College of Animal Science, South China Agricultural University, Guangzhou 510642, P. R. China; Guangdong Engineering Research Center for Vector Vaccine of Animal Virus, Guangzhou 510642, P. R. China; South China Collaborative Innovation Center for Poultry Disease Control and Product Safety, Guangzhou 510642, P. R. China
| | - J Ji
- Henan Provincial Engineering and Technology Center of Health Products for Livestock and Poultry, Nanyang Normal University, Nanyang 473061, P. R. China
| | - F Chen
- Heyuan Branch, Guangdong Provincial Laboratory of Lingnan Modern Agricultural Science and Technology, College of Animal Science, South China Agricultural University, Guangzhou 510642, P. R. China; Guangdong Engineering Research Center for Vector Vaccine of Animal Virus, Guangzhou 510642, P. R. China; South China Collaborative Innovation Center for Poultry Disease Control and Product Safety, Guangzhou 510642, P. R. China; Key Laboratory of Animal Health Aquaculture and Environmental Control, Guangzhou, Guangdong 510642, P. R. China
| | - X H Zhang
- Heyuan Branch, Guangdong Provincial Laboratory of Lingnan Modern Agricultural Science and Technology, College of Animal Science, South China Agricultural University, Guangzhou 510642, P. R. China; Guangdong Engineering Research Center for Vector Vaccine of Animal Virus, Guangzhou 510642, P. R. China; South China Collaborative Innovation Center for Poultry Disease Control and Product Safety, Guangzhou 510642, P. R. China; Key Laboratory of Animal Health Aquaculture and Environmental Control, Guangzhou, Guangdong 510642, P. R. China
| | - Q M Xie
- Heyuan Branch, Guangdong Provincial Laboratory of Lingnan Modern Agricultural Science and Technology, College of Animal Science, South China Agricultural University, Guangzhou 510642, P. R. China; Guangdong Engineering Research Center for Vector Vaccine of Animal Virus, Guangzhou 510642, P. R. China; South China Collaborative Innovation Center for Poultry Disease Control and Product Safety, Guangzhou 510642, P. R. China; Key Laboratory of Animal Health Aquaculture and Environmental Control, Guangzhou, Guangdong 510642, P. R. China.
| |
Collapse
|
15
|
Zhao HC, Xia H, Hu S, Lv YY, Zhao ZR, He J, Liang E, Ni G, Chen LY, Qiu XP, Zhou SM, Zhao HB. Large ultrafast-modulated Voigt effect in noncollinear antiferromagnet Mn 3Sn. Nat Commun 2021; 12:5266. [PMID: 34489461 PMCID: PMC8421456 DOI: 10.1038/s41467-021-25654-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/26/2021] [Accepted: 08/18/2021] [Indexed: 11/15/2022] Open
Abstract
The time-resolved magneto-optical (MO) Voigt effect can be utilized to study the Néel order dynamics in antiferromagnetic (AFM) materials, but it has been limited for collinear AFM spin configuration. Here, we have demonstrated that in Mn3Sn with an inverse triangular spin structure, the quench of AFM order by ultrafast laser pulses can result in a large Voigt effect modulation. The modulated Voigt angle is significantly larger than the polarization rotation due to the crystal-structure related linear dichroism effect and the modulated MO Kerr angle arising from the ferroic ordering of cluster magnetic octupole. The AFM order quench time shows negligible change with increasing temperature approaching the Néel temperature (TN), in markedly contrast with the pronounced slowing-down demagnetization typically observed in conventional magnetic materials. This atypical behavior can be explained by the influence of weakened Dzyaloshinskii–Moriya interaction rather than the smaller exchange splitting on the diminished AFM order near TN. The temperature-insensitive ultrafast spin manipulation can pave the way for high-speed spintronic devices either working at a wide range of temperature or demanding spin switching near TN. Mn3Sn is an anti-ferromagnetic material which displays a large magneto-optical Kerr effect, despite lacking a ferromagnetic moment. Here, the authors show that likewise, Mn3Sn, also presents a particularly large magneto-optical Voigt signal, with a negligible change in the quench time over a wide temperature range.
Collapse
Affiliation(s)
- H C Zhao
- Key Laboratory of Micro and Nano Photonic Structures (Ministry of Education), and Shanghai Ultra-precision Optical Manufacturing Engineering Research Center, Department of Optical Science and Engineering, Fudan University, Shanghai, China
| | - H Xia
- Key Laboratory of Micro and Nano Photonic Structures (Ministry of Education), and Shanghai Ultra-precision Optical Manufacturing Engineering Research Center, Department of Optical Science and Engineering, Fudan University, Shanghai, China.,Department of Physics, Fudan University, Shanghai, China
| | - S Hu
- Shanghai Key Laboratory of Special Artificial Microstructure Materials and Technology and Pohl Institute of Solid State Physics and School of Physics Science and Engineering, Tongji University, Shanghai, China
| | - Y Y Lv
- Shanghai Key Laboratory of Special Artificial Microstructure Materials and Technology and Pohl Institute of Solid State Physics and School of Physics Science and Engineering, Tongji University, Shanghai, China
| | - Z R Zhao
- Key Laboratory of Micro and Nano Photonic Structures (Ministry of Education), and Shanghai Ultra-precision Optical Manufacturing Engineering Research Center, Department of Optical Science and Engineering, Fudan University, Shanghai, China
| | - J He
- Key Laboratory of Micro and Nano Photonic Structures (Ministry of Education), and Shanghai Ultra-precision Optical Manufacturing Engineering Research Center, Department of Optical Science and Engineering, Fudan University, Shanghai, China
| | - E Liang
- Key Laboratory of Micro and Nano Photonic Structures (Ministry of Education), and Shanghai Ultra-precision Optical Manufacturing Engineering Research Center, Department of Optical Science and Engineering, Fudan University, Shanghai, China
| | - G Ni
- Key Laboratory of Micro and Nano Photonic Structures (Ministry of Education), and Shanghai Ultra-precision Optical Manufacturing Engineering Research Center, Department of Optical Science and Engineering, Fudan University, Shanghai, China.
| | - L Y Chen
- Key Laboratory of Micro and Nano Photonic Structures (Ministry of Education), and Shanghai Ultra-precision Optical Manufacturing Engineering Research Center, Department of Optical Science and Engineering, Fudan University, Shanghai, China
| | - X P Qiu
- Shanghai Key Laboratory of Special Artificial Microstructure Materials and Technology and Pohl Institute of Solid State Physics and School of Physics Science and Engineering, Tongji University, Shanghai, China.
| | - S M Zhou
- Shanghai Key Laboratory of Special Artificial Microstructure Materials and Technology and Pohl Institute of Solid State Physics and School of Physics Science and Engineering, Tongji University, Shanghai, China.
| | - H B Zhao
- Key Laboratory of Micro and Nano Photonic Structures (Ministry of Education), and Shanghai Ultra-precision Optical Manufacturing Engineering Research Center, Department of Optical Science and Engineering, Fudan University, Shanghai, China. .,Shanghai Frontier Base of Intelligent Optoelectronics and Perception, Institute of Optoelectronics, Fudan University, Shanghai, China.
| |
Collapse
|
16
|
Han BF, Huang NH, Chen LY, Zhao TS, Liu HY, Zhang SH, Wang Y, Zheng H, Liu B, Wang C, Liu YQ, Lu QB, Cui FQ. [Development and outlook on human challenge trial of vaccine]. Zhonghua Liu Xing Bing Xue Za Zhi 2021; 42:1371-1375. [PMID: 34814556 DOI: 10.3760/cma.j.cn112338-20210506-00368] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Human challenge trial (HCT) is a test in which human volunteers are intentionally infected with pathogens in order to evaluate the efficacy of candidate preventive or therapeutic drugs. During the COVID-19 pandemic, the HCT of vaccines has aroused people's attention due to its significant advantages over clinical trial. This paper introduces the concept, development and application of HCT, the advantages and limitations of HCT for vaccine evaluation, and the consideration of future HCT of COVID-19 vaccine in China.
Collapse
Affiliation(s)
- B F Han
- School of Public Health, Peking University, Beijing 100191, China
| | - N H Huang
- School of Public Health, Peking University, Beijing 100191, China
| | - L Y Chen
- School of Public Health, Peking University, Beijing 100191, China
| | - T S Zhao
- School of Public Health, Peking University, Beijing 100191, China
| | - H Y Liu
- School of Public Health, Peking University, Beijing 100191, China
| | - S H Zhang
- School of Public Health, Peking University, Beijing 100191, China
| | - Y Wang
- School of Public Health, Peking University, Beijing 100191, China
| | - H Zheng
- School of Public Health, Peking University, Beijing 100191, China National Immunization Program, Chinese Center for Disease Control and Prevention, Beijing 100050, China
| | - B Liu
- School of Public Health, Peking University, Beijing 100191, China
| | - C Wang
- School of Public Health, Peking University, Beijing 100191, China
| | - Y Q Liu
- School of Public Health, Peking University, Beijing 100191, China
| | - Q B Lu
- School of Public Health, Peking University, Beijing 100191, China
| | - F Q Cui
- School of Public Health, Peking University, Beijing 100191, China
| |
Collapse
|
17
|
Lee YX, Tzeng CR, Hu YM, Chen CH, Chen CW, Liao CC, Chen LY, Weng YC, Wang HC, Huang RL, Lai HC. P–522 Cervical secretion methylation profile is associated with the success of frozen-thawed embryo transfer - a proof-of-concept study. Hum Reprod 2021. [DOI: 10.1093/humrep/deab130.521] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Study question
Is cervical secretion gene methylation profile different between receptive and non-receptive endometrium and associated with implantation outcome in frozen-embryo transfer (FET) cycle?
Summary answer
The combination of candidate genes methylation profiles obtained from cervical secretion showed significant associations with pregnancy outcomes.
What is known already
Implantation failure remains a black box in reproductive medicine, and the exact mechanism of how endometrial receptivity is regulated is still unknown. Epigenetic modifications play a role in the gene expression pattern and may alter the endometrial receptivity in the human endometrium. Cervical secretion containing various implantation-related cytokines, and the gene methylation change can be used as a non-invasive molecular source that reflects the endometrium condition.
Study design, size, duration
In this retrospective case-control study, sixty-two women who entered the FET cycle (30 pregnant and 32 non-pregnant women) were enrolled.
Participants/materials, setting, methods
Cervical secretion was collected before embryo transfer from women enrolled in multicenter university-affiliated reproductive units. The DNA methylation status of six candidate genes was measured using quantitative methylation-specific PCR (qMSP). The correlation between methylation change and the pregnancy outcome was analyzed.
Main results and the role of chance
The candidate genes were selected from that associated with implantation with literature review and the original genome-wide DNA methylation data from NCBI GEO DataSets (GSE90060) which processed using bioinformatics analysis. Six candidate genes whose CpG-level methylation analysis with β-value statistically higher in receptive endometrium than in a pre-receptive endometrium were selected. All six candidate genes showed different degrees of correlation with the pregnancy outcomes. Among them, PRKAG2 methylation changes showed the highest correlation with the pregnancy outcome. A logistic regression model was used to evaluate the performance of a single gene or a combination of genes for implantation prediction. The results showed a statistically significant association between the methylation status of a combination of genes (PRKAG2, KRS1, HAND2) and the pregnancy outcome (p = 0.008), resulting in an optimal AUC of 0.7 (95% CI: 0.57 - 0.81) for implantation prediction.
Limitations, reasons for caution
The results obtained from a relatively small cohort size. A larger study and further comprehensive methylome investigations are warranted.
Wider implications of the findings: This study is the first proof-of-concept study that cervical secretion methylation profile is associated with implantation outcome in a FET cycle, and showed potential as a non-invasive method for implantation prediction.
Trial registration number
non applicable
Collapse
Affiliation(s)
- Y X Lee
- Taipei Medical University, Graduate Institute of Clinical Medicine, Taipei, Taiwan R.O.C
- Shuang Ho Hospital- Taipei Medical University, Translational epigenetics center, New Taipei City, Taiwan R.O.C
- Taipei Fertility Center, Taipei Fertility Center, Taipei, Taiwan R.O.C
| | - C R Tzeng
- Taipei Fertility Center, Taipei Fertility Center, Taipei, Taiwan R.O.C
- Taipei Medical University, Department of Obstetrics and Gynecology- School of Medicine- College of Medicine, Taipei, Taiwan R.O.C
| | - Y M Hu
- Taipei Fertility Center, Taipei Fertility Center, Taipei, Taiwan R.O.C
| | - C H Chen
- Taipei Medical University, Department of Obstetrics and Gynecology- School of Medicine- College of Medicine, Taipei, Taiwan R.O.C
- Taipei Medical University Hospital, Division of Reproductive Medicine- Department of Obstetrics and Gynecology-, Taipei, Taiwan R.O.C
| | - C W Chen
- Shuang Ho Hospital- Taipei Medical University, Department of Obstetrics and Gynecology, New Taipei City, Taiwan R.O.C
| | - C C Liao
- Shuang Ho Hospital- Taipei Medical University, Department of Obstetrics and Gynecology, New Taipei City, Taiwan R.O.C
| | - L Y Chen
- Shuang Ho Hospital- Taipei Medical University, Translational epigenetics center, New Taipei City, Taiwan R.O.C
- Shuang Ho Hospital- Taipei Medical University, Department of Obstetrics and Gynecology, New Taipei City, Taiwan R.O.C
| | - Y C Weng
- Shuang Ho Hospital- Taipei Medical University, Translational epigenetics center, New Taipei City, Taiwan R.O.C
| | - H C Wang
- Taipei Medical University, Department of Obstetrics and Gynecology- School of Medicine- College of Medicine, Taipei, Taiwan R.O.C
| | - R L Huang
- Shuang Ho Hospital- Taipei Medical University, Translational epigenetics center, New Taipei City, Taiwan R.O.C
- Taipei Medical University, Department of Obstetrics and Gynecology- School of Medicine- College of Medicine, Taipei, Taiwan R.O.C
- Shuang Ho Hospital- Taipei Medical University, Department of Obstetrics and Gynecology, New Taipei City, Taiwan R.O.C
| | - H C Lai
- Shuang Ho Hospital- Taipei Medical University, Translational epigenetics center, New Taipei City, Taiwan R.O.C
- Taipei Medical University, Department of Obstetrics and Gynecology- School of Medicine- College of Medicine, Taipei, Taiwan R.O.C
- Shuang Ho Hospital- Taipei Medical University, Department of Obstetrics and Gynecology, New Taipei City, Taiwan R.O.C
| |
Collapse
|
18
|
Zhang SN, Chen LY, Yan N, Chen LH. [Historical changes of a missionary hospital - Shanghai General Hospital (1864-1953)]. Zhonghua Yi Shi Za Zhi 2021; 51:201-207. [PMID: 34645116 DOI: 10.376/cma.j.cn112155-20210119-00015] [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: 11/08/2022]
Abstract
The Christian missionaries preached through medicine by combining religious preaching with secularisation and social adaptiveness of medicine in the 19th century. They attempted to avoid the negative influence of culture differences between the West and China. Desjacques Marin, one of the missionaries in China, was entrusted by Benoit Edan, a French consul in Shanghai to establish a hospital in 1864, named the "General Hospital". This hospital was moved to the north bank of Suzhou Creek in 1877 and renamed as the Gongji Hospital. The hospital was designated by the Japanese Army in 1940 as a hospital for sick foreign prisoners in the war. It was taken over as an enemy property by the government of the Republic of China in 1945 and became a public hospital opened formally to Chinese patients. It was renamed as "Shanghai First People's Hospital" in 1953. Review of the historical changes of the missionary hospital is of significance for the study on Chinese medical history and medical communication between China and the West.
Collapse
Affiliation(s)
- S N Zhang
- Institute of Science, Technology and Humanity, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - L Y Chen
- Institute of Science, Technology and Humanity, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - N Yan
- Institute of Science, Technology and Humanity, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| | - L H Chen
- Institute of Science, Technology and Humanity, Shanghai University of Traditional Chinese Medicine, Shanghai 201203, China
| |
Collapse
|
19
|
Yu H, Zhu PP, Chen LY, Zhu FF, Hu RL, Li XJ. [Application of pulse contour cardiac output monitoring technology in fluid resuscitation of severe burn patients in shock period]. Zhonghua Shao Shang Za Zhi 2021; 37:136-142. [PMID: 33498100 DOI: 10.3760/cma.j.cn501120-20200908-00403] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the application of pulse contour cardiac output (PiCCO) monitoring technology in fluid resuscitation of severe burn patients in shock period. Methods: From January 2015 to December 2019, 33 patients with severe burns who were hospitalized in Guangzhou Red Cross Hospital, meeting the inclusion criteria, were recruited into a retrospective cohort study with their clinical information collected. The patients were divided into PiCCO monitoring group with 15 cases (13 males and 2 females, aged (43±13) years) and routine monitoring group with 18 cases (14 males and 4 females, aged (39±9) years) according to the monitoring method used. After admission, all the patients were rehydrated following the rehydration formula of the Third Military Medical University for shock period. In routine monitoring group, the fluid resuscitation of patients was performed by monitoring indicators such as urine volume and blood pressure, while PiCCO monitoring was performed among patients in PiCCO monitoring group, and their fluid resuscitation was guided by the patient's condition and the hemodynamic parameters (without pursuing normal levels of the parameters) of PiCCO monitoring on the basis of normal monitoring indicators in routine monitoring group. The colloids coefficients, the electrolyte coefficients (compared with the corresponding rehydration formula value of 0.75 mL·kg(-1)·% total body surface area (TBSA)(-1) of the Third Military Medical University for shock period during the first 24 h post injury), the total rehydration coefficients, and the urine volumes during the first and second 24 h post injury, the lactic acid level, the base excess level, and the oxygenation index at admission and 24, 48 h after admission, and the mechanical ventilation time, the wound healing time, and the death ratio of patients in the two groups were recorded. The cardiac index, the global end-diastolic volume index (GEDVI), the intrathoracic blood volume index (ITBVI), the extravascular lung water index (EVLWI), and the systemic vascular resistance index (SVRI) of patients in PiCCO monitoring group at post injury hour 24, 48, and 72 and the abnormal cases were recorded. Data were statistically analyzed with Fisher's exact probability test, independent-sample or one-sample t test, analysis of variance for repeated measurement, and Bonferroni correction. Results: During the first 24 h post injury, the colloids coefficients of patients in PiCCO monitoring group was (0.69±0.15) mL·kg(-1)·%TBSA(-1), which was significantly less than (0.85±0.16) mL·kg(-1)·%TBSA(-1) in routine monitoring group (t=-2.612, P<0.05). Compared with the rehydration formula value of the Third Military Medical University for shock period, only the colloids coefficient of patients in routine monitoring group during the first 24 h post injury was significantly increased (t=2.847, P<0.05). There were no statistically significant differences between the two groups in the colloids coefficients of patients during the second 24 h post injury, or the electrolyte coefficients, the total rehydration coefficients, the urine volumes of patients during the first and the second 24 h post injury (t=0.579, -0.011, 0.417, -1.321, -0.137, 0.031, 1.348, P>0.05). The lactic acid level, the base excess level, the oxygenation index of patients at admission and 48 h after admission, and the oxygenation index of patients at 24 h after admission between the two groups were similar (t=-1.837, 0.620, 0.292, -1.792, 1.912, -0.167, 1.695, P>0.05). The levels of lactic acid and base excess of patients in PiCCO monitoring group were (4.8±1.4) and (1.2±5.5)mmol/L, respectively, which were significantly better than (7.0±1.5) and (-2.8±3.0) mmol/L in routine monitoring group at 24 h after admission (t=-3.904, 2.562, P<0.05 or P<0.01). There were no statistically significant differences between the two groups in the mechanical ventilation time or the wound healing time of patients (t=-0.699, -0.697, P>0.05), or the death ratio of patients (P>0.05). In PiCCO monitoring group, the GEDVI, and the ITBVI of patients were lower than the normal low values at post injury hour 24 and 48, which were in the normal range at post injury hour 72; the cardiac index of patients increased gradually and recovered to normal at post injury hour 48; the SVRI of patients increased significantly at post injury hour 24 and then gradually decreased to normal; the EVLWI average of patients at all time points post injury were less than 10 mL/kg. At post injury hour 24, most of the hemodynamic parameters of more than or equal to 8/15 patients in PiCCO monitoring group were abnormal, and the abnormal proportion decreased later. Conclusions: On the basis of traditional monitoring indicators, the use of PiCCO monitoring technology combined with the patient's condition (without pursuing normal levels of the parameters) in guiding the fluid resuscitation in severe burn patients can reduce the usage of colloid and better improve tissue perfusion, with the resuscitation effect being better than conventional monitoring.
Collapse
Affiliation(s)
- H Yu
- Department of Burns and Plastic Surgery, Guangzhou Red Cross Hospital, Guangzhou 510220, China
| | - P P Zhu
- Department of Burns and Plastic Surgery, Guangzhou Red Cross Hospital, Guangzhou 510220, China
| | - L Y Chen
- Department of Burns and Plastic Surgery, Guangzhou Red Cross Hospital, Guangzhou 510220, China
| | - F F Zhu
- Department of Burns and Plastic Surgery, Guangzhou Red Cross Hospital, Guangzhou 510220, China
| | - R L Hu
- Department of Burns and Plastic Surgery, Guangzhou Red Cross Hospital, Guangzhou 510220, China
| | - X J Li
- Department of Burns and Plastic Surgery, Guangzhou Red Cross Hospital, Guangzhou 510220, China
| |
Collapse
|
20
|
Yuan HC, Yu QT, Bai H, Xu HZ, Gu P, Chen LY. Alcohol intake and the risk of chronic kidney disease: results from a systematic review and dose-response meta-analysis. Eur J Clin Nutr 2021; 75:1555-1567. [PMID: 33674776 DOI: 10.1038/s41430-021-00873-x] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/09/2020] [Revised: 01/15/2021] [Accepted: 01/28/2021] [Indexed: 01/11/2023]
Abstract
Many prospective cohort studies have investigated the association between the consumption of alcohol and CKD risk and have revealed inconsistent results. In the present study, we aimed to perform a meta-analysis of these studies to assess this association.We searched the PubMed and Embase databases up to 2020 and reviewed the reference lists of relevant articles to identify appropriate studies. We calculated the pooled relative risks with 95% CIs using random effects models, and then performed subgroup and meta-regression analyses. Dose-response meta-analyses were performed by sex separately. We identified 25 eligible prospective cohort studies, including 514,148 participants and 35,585 incident CKD cases. Compared with the category of minimal alcohol intake, light (RR = 0.90, I2 = 49%), moderate (RR = 0.86, I2 = 40%), and heavy (RR = 0.85, I2 = 51%) alcohol intake were associated with a lower risk of CKD. Subgroup meta-analysis by sex indicated that light (RR = 0.92, I2 = 0%), moderate (RR = 0.83, I2 = 39%) and heavy (RR = 0.76, I2 = 40%), alcohol consumption were inversely associated with CKD risk in male. Dose-response meta-analyses detected a nonlinear inverse association between alcohol consumption and the risk of CKD in all participants and linear inverse association in female participants. This meta-analysis shows that light (<12 g/day), moderate (12-24 g/day), and heavy (>24 g/day) alcohol consumption are protective against chronic kidney disease in adult participants especially in males.
Collapse
Affiliation(s)
- H C Yuan
- Department of Nutrition, Qingdao Municipal Hospital, Qingdao, China
| | - Q T Yu
- The People's Hospital of Huaiyin, Jinan, China
| | - H Bai
- The People's Hospital of Huaiyin, Jinan, China
| | - H Z Xu
- Department of Nutrition and Food Hygiene, School of Public Health, Shandong University, Jinan, China
| | - P Gu
- Department of Nutrition, Qingdao Municipal Hospital, Qingdao, China.
| | - L Y Chen
- Department of Nutrition and Food Hygiene, School of Public Health, Shandong University, Jinan, China. .,Department of Clinical Nutrition, Shandong Provincial Hospital, Jinan, China.
| |
Collapse
|
21
|
Dan D, Liu QM, Chen LY, Yang F. [Pulmonary papillary adenoma: report of a case]. Zhonghua Bing Li Xue Za Zhi 2020; 49:1325-1327. [PMID: 33287525 DOI: 10.3760/cma.j.cn112151-20200417-00320] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- D Dan
- Department of Pathology, Shaoxing Second Hospital, Shaoxing 312000, Zhejiang Province, China
| | - Q M Liu
- Department of Pathology, Shaoxing Second Hospital, Shaoxing 312000, Zhejiang Province, China
| | - L Y Chen
- Department of Pathology, Shaoxing Second Hospital, Shaoxing 312000, Zhejiang Province, China
| | - F Yang
- Department of Pathology, Shaoxing Second Hospital, Shaoxing 312000, Zhejiang Province, China
| |
Collapse
|
22
|
Li M, Chen LY, Li DM, Wang S, Zhang YH, Shi XH. [Consistency analysis of immunohistochemistry staining for different PD-L1 antibodies in the cancer cells of non-small cell lung cancer]. Zhonghua Bing Li Xue Za Zhi 2020; 49:1174-1176. [PMID: 33152825 DOI: 10.3760/cma.j.cn112151-20200211-00076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- M Li
- Department of Pathology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - L Y Chen
- Department of Pathology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - D M Li
- Department of Pathology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - S Wang
- Department of Pathology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Y H Zhang
- Department of Pathology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| | - X H Shi
- Department of Pathology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
| |
Collapse
|
23
|
Bianco F, De Caterina R, Chandra A, Goncalves A, Aquila I, Solomon SD, Chen LY. 100 Association of age-related left atrial remodeling with ischemic stroke in patients with normal sinus rhythm. Eur Heart J Cardiovasc Imaging 2020. [DOI: 10.1093/ehjci/jez319.019] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
OnBehalf
The ARIC Study
Background
Age-related left atrial (LA) structural/functional abnormalities in elderly patients with normal sinus rhythm and preserved ejection fraction may precede the development of overt atrial fibrillation, and also may be related to stroke.
Purpose
To evaluate the association of 3-dimensional echocardiographic (3DE) atrial contractility parameters with subclinical cerebral infarcts (SCIs), as assessed by brain MRI, and clinically diagnosed stroke
Methods
We studied 407 participants (mean age 76 ± 5 years, 40.5% male) from the Atherosclerosis Risk in Communities Neurocognitive Study (ARIC-NCS) without AF and who underwent a brain MRI and a 3DE examination in 2011-13. We defined 3 groups: those with no cerebral infarcts on brain MRI (NCIs, N = 315); those with MRI-diagnosed SCIs (N = 58); and those with clinically diagnosed stroke (N = 34).
Results
While still within the normal range, LA indexed volume significantly increased across the 3 groups (P-trend = 0.01).This was accompanied by an increase in the LA global longitudinal strain (GLS), an echocardiographic index of LA reservoir function (P-trend = 0.004). E/e’ divided by LA GLS—index of atrial stiffness—worsened across groups (P-trend = 0.005) and was independently associated with SCIs and Stroke, pooled together, [OR per 1 %-1, 1.97; 95% CI (1.24, 3.11), P = 0.004], and Stroke [OR per 1 %-1, 2.30; 95% CI (1.23, 4.30), P = 0.009]. LA GLS was marginally associated with an increased odd of SCIs [OR per 1 %, 1.07; 95% CI (1.01, 1.13), P = 0.014].
Conclusions
Among elderly participants with normal sinus rhythm and preserved ejection fraction in a large cohort study, markers of LA function and stiffness are associated with increased odds of subclinical infarcts and stroke. These data suggest that even subtle LA dysfunction, which may contribute to LA stasis, may predispose to subclinical cerebral infarcts and stroke.
Collapse
Affiliation(s)
- F Bianco
- G. d"Annunzio University, Cardiology, Chieti, Italy
| | - R De Caterina
- Azienda Ospedaliero-Universitaria Pisana, Cardiology, Pisa, Italy
| | - A Chandra
- Brigham and Women"s Hospital, Boston, United States of America
| | - A Goncalves
- Brigham and Women"s Hospital, Boston, United States of America
| | - I Aquila
- Magna Graecia University of Catanzaro, Cardiology, Catanzaro, Italy
| | - S D Solomon
- Brigham and Women"s Hospital, Boston, United States of America
| | - L Y Chen
- University of Minnesota, Medicine, cardiovascular division, Minneapolis, United States of America
| |
Collapse
|
24
|
Chen LY, Li Y, Zhang TT, Bao XJ, Yuan XN, Li Y, Li LJ, Yang TJ, He J. [Clinical significance of HLA-A, -B, -C, -DRB1, -DQB1 haplotype gene frequencies]. Zhonghua Xue Ye Xue Za Zhi 2019; 40:1026-1030. [PMID: 32023735 PMCID: PMC7342679 DOI: 10.3760/cma.j.issn.0253-2727.2019.12.011] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Download PDF] [Subscribe] [Scholar Register] [Received: 08/07/2019] [Indexed: 11/16/2022]
Abstract
Objective: To analyze family-based haplotype frequencies of HLA-A, -B, -C, -DRB1 and -DQB1 genes and their clinical significance. Methods: The data of HLA genotyping in 3568 families undergoing related haploidentical transplantation between 2012 and 2017 at the First Affiliated Hospital of Soochow University were retrospectively evaluated. The HLA genotyping was performed by PCR amplification with sequence-based typing (PCR-SBT) and sequence-specific oligonucleotide probe (PCR-SSOP) methods. The family genetic analysis and haplotype frequencies were also investigated. Results: All the families were divided into 3 groups, including group1 of 1 422 entire families; group2 of 1 310 patients and either of their parents or one of their children; group3 of 836 patients and their HLA≥5/10 matched sibling donors. In the haplotypes with frequencies greater than 0.1% in group1+ group2, the frequency of A*11∶01-B*40∶01-C*03∶04-DRB1*11∶01-DQB1*03∶01, A*02∶07-B*51∶01-C*14∶02-DRB1*09:01-DQB1*03∶03 were significantly different between group1 and group2 (P=0.029, 0.033) . The frequency of A*11∶01-B*46∶01-C*01∶02∶01G-DRB1*09∶01-DQB1*03∶03 was significantly different between group1 and group3 (P=0.035) . The frequency of A*02∶01-B*40∶01-C*07∶02-DRB1*09∶01-DQB1*03∶03 was significantly different between group1 and group2 (P=0.034) , or group1 and group3 (P=0.034) . The frequency of A*24∶02-B*13∶01-C*03∶04-DRB1*12∶02-DQB1*03:01 was significantly different between group2 and group3 (P=0.046) . Conclusion: In this study, we summarize the prevalence of haplotype frequencies in terms of HLA-A, -B, -C, -DRB1 and-DQB1. Based on the database of family haplotype analysis, patients and donor candidates are sorted with matched HLA genotype while unmatched HLA haplotype. Even in patients without entire family information, HLA haplotype analysis assists in choosing the optimal related or unrelated donors.
Collapse
Affiliation(s)
- L Y Chen
- Jiangsu Institute of Hematology, the First Affiliated Hospital of Soochow University, Suzhou 215006, China
| | - Y Li
- Jiangsu Institute of Hematology, the First Affiliated Hospital of Soochow University, Suzhou 215006, China
| | - T T Zhang
- Jiangsu Institute of Hematology, the First Affiliated Hospital of Soochow University, Suzhou 215006, China
| | - X J Bao
- Jiangsu Institute of Hematology, the First Affiliated Hospital of Soochow University, Suzhou 215006, China
| | - X N Yuan
- Jiangsu Institute of Hematology, the First Affiliated Hospital of Soochow University, Suzhou 215006, China
| | - Y Li
- Jiangsu Institute of Hematology, the First Affiliated Hospital of Soochow University, Suzhou 215006, China
| | - L J Li
- Jiangsu Institute of Hematology, the First Affiliated Hospital of Soochow University, Suzhou 215006, China
| | - T J Yang
- Jiangsu Institute of Hematology, the First Affiliated Hospital of Soochow University, Suzhou 215006, China
| | - J He
- Jiangsu Institute of Hematology, the First Affiliated Hospital of Soochow University, Suzhou 215006, China
| |
Collapse
|
25
|
Zhao TS, Du J, Sun DP, Zhu QR, Chen LY, Ye C, Wang S, Liu YQ, Cui F, Lu QB. A review and meta-analysis of the epidemiology and clinical presentation of coxsackievirus A6 causing hand-foot-mouth disease in China and global implications. Rev Med Virol 2019; 30:e2087. [PMID: 31811676 DOI: 10.1002/rmv.2087] [Citation(s) in RCA: 17] [Impact Index Per Article: 3.4] [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: 04/15/2019] [Revised: 09/09/2019] [Accepted: 09/14/2019] [Indexed: 12/22/2022]
Abstract
Coxsackievirus A6 (CV-A6) has been associated with increasingly occurred sporadic hand-foot-mouth disease (HFMD) cases and outbreak events in many countries. In order to understand epidemiological characteristics of CV-A6, we collected the information describing HFMD caused by CV-A6 to describe the detection rate, severe rate and onychomadesis rate, which is defined as one or more nails defluvium, caused by CV-A6 from 2007 to 2017. The results showed that there was an outbreak of CV-A6 every other year, and overall trend of the epidemic of CA6-associated HFMD was increasing in China. The detection rate of CV-A6 in other countries was 32.0% (95% CI: 25.0%~40.0%) before 2013 and 28.0% (95% CI: 20.0%~36.0%) after 2013, respectively. Although the severe rate of HFMD caused by CV-A6 was low (0.10%, 95% CI: 0.01%~0.20%), CV-A6 can cause a high incidence of onychomadesis (28.0%, 95%CI: 21.9%-34.3%). Thus, it would be worthwhile to research and develop an effective multivalent vaccine for CV-A6 to achieve a more powerful prevention of HMFD.
Collapse
Affiliation(s)
- Tian-Shuo Zhao
- Department of Laboratorial Science and Technology, School of Public Health, Peking University, Beijing, People's Republic of China.,Vaccine Research Center, School of Public Health, Peking University, Beijing, People's Republic of China
| | - Juan Du
- Department of Laboratorial Science and Technology, School of Public Health, Peking University, Beijing, People's Republic of China.,Vaccine Research Center, School of Public Health, Peking University, Beijing, People's Republic of China
| | - Da-Peng Sun
- Institute for Viral Disease Control and Prevention, Shandong Provincial Key Laboratory of Communicable Disease Control and Prevention, Shandong Center for Disease Control and Prevention, Jinan, People's Republic of China
| | - Quan-Rong Zhu
- Department of Laboratorial Science and Technology, School of Public Health, Peking University, Beijing, People's Republic of China.,Vaccine Research Center, School of Public Health, Peking University, Beijing, People's Republic of China
| | - Lin-Yi Chen
- Department of Laboratorial Science and Technology, School of Public Health, Peking University, Beijing, People's Republic of China.,Vaccine Research Center, School of Public Health, Peking University, Beijing, People's Republic of China
| | - Chen Ye
- Department of Laboratorial Science and Technology, School of Public Health, Peking University, Beijing, People's Republic of China.,Vaccine Research Center, School of Public Health, Peking University, Beijing, People's Republic of China
| | - Shuai Wang
- Department of Laboratorial Science and Technology, School of Public Health, Peking University, Beijing, People's Republic of China.,Vaccine Research Center, School of Public Health, Peking University, Beijing, People's Republic of China
| | - Ya-Qiong Liu
- Department of Laboratorial Science and Technology, School of Public Health, Peking University, Beijing, People's Republic of China.,Vaccine Research Center, School of Public Health, Peking University, Beijing, People's Republic of China
| | - Fuqiang Cui
- Department of Laboratorial Science and Technology, School of Public Health, Peking University, Beijing, People's Republic of China.,Vaccine Research Center, School of Public Health, Peking University, Beijing, People's Republic of China
| | - Qing-Bin Lu
- Department of Laboratorial Science and Technology, School of Public Health, Peking University, Beijing, People's Republic of China.,Vaccine Research Center, School of Public Health, Peking University, Beijing, People's Republic of China
| |
Collapse
|
26
|
Wang LL, Chen LY. [From Chinese Medical Association Medical History Museum to the Shanghai Museum of Traditional Chinese Medicine: commemoration of the 130th anniversary of the birthday of modern medical historian Wang Jimin]. Zhonghua Yi Shi Za Zhi 2019; 49:343-349. [PMID: 32564526 DOI: 10.3760/cma.j.issn.0255-7053.2019.06.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The Shanghai Museum of Traditional Chinese Medicine, formerly known as the Chinese Medical Association Medical History Museum, is the first professional medical history museum in China. Wang Jimin is the main planner and founder of the Medical History Museum of the Chinese Medical Association and served as the first curator. In 1951, the Chinese Medical Association moved to Beijing, and the Medical History Museum stayed in Shanghai. In 1959, it was merged into Shanghai College of Traditional Chinese Medicine. Wang Jimin has been the curator until his death. For 28 years, he has devoted his life to the maintenance and development of the museum. In 1998, the Museum of Medical History was restored to the Chinese Medical Association, and was named the Chinese Medical Association/The Museum of Medical History of Shanghai University of Traditional Chinese Medicine. In 2003, the Chinese Medical Association/Shanghai University of Traditional Chinese Medicine Museum of Medical History merged with the Chinese Herbarium and the Party History School Editing Office. It was named "Shanghai Traditional Chinese Medicine Museum" and was opened in Zhangjiang Campus in 2004. At present, the Shanghai Museum of Traditional Chinese Medicine has a collection of more than 14, 000 pieces. Many of them are rare treasures. Each year, it services about 100, 000 visitors from domestic and abroad, and has held nearly 100 popular science activities. The Museum has held temporary exhibitions in 11 countries overseas in recent years.
Collapse
Affiliation(s)
- L L Wang
- Shanghai Museum of Traditional Chinese Medicine, Shanghai 201203, China
| | - L Y Chen
- Institute of Science, Technology and Humanities, SHUTCM, Shanghai 201203, China
| |
Collapse
|
27
|
Chen LY, Li W, Xu JL, Tao R, Li HM, Liu LF, Shang SQ. [Relationship between gH genotyping and clinical characteristics of children with congenital cytomegalovirus infection]. Zhonghua Er Ke Za Zhi 2019; 57:597-602. [PMID: 31352744 DOI: 10.3760/cma.j.issn.0578-1310.2019.08.005] [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 study the relationship between human cytomegalovirus (HCMV) envelope glycoprotein gene H and clinical features of children with congenital cytomegalovirus infection. Methods: A cohort study was conducted. Newborns diagnosed with congenital cytomegalovirus infection, hospitalized in the Department of Neonatology and Neonatal Intensive Care Unit (NICU) of the Children's Hospital, Zhejiang University School of Medicine, were included from July 2013 to December 2015.HCMV-DNA gH typing in urine, sputum or blood was conducted. Patients then were divided into gH1 group and gH2 group according to gH genotypes. Patients' data during hospitalization in newborn and 3-5 years of follow-up were collected.The relationships between gH genotype and clinical manifestations, laboratory examinations, hearing loss and neurological prognosis were analyzed by chi-square test, t test and non-parametric test. Results: A total of 21 cases were enrolled as congenital HCMV infection and followed-up for 3-5 years. Among them, 14 (67%) were gH1 type and 7 (33%) were gH2 type. No mixed infection was found. In the two groups, there were no significant differences in the ratio of males (9/14 vs. 3/7,P=0.397), or birth weight ((2 609±686) vs. (3 021±451) g, t=-1.436, P=0.167). Gestational age of gH1 group was younger than that of gH2 group (38 (29-40) vs. 39(38-40) weeks, Z=-2.18, P=0.029). Moderate to severe hearing loss detected by neonatal auditory brainstem response were found in 40 ears (20 cases). It was higher in gH1 group than that in gH2 group (4/22 vs.0/18, χ(2)=5.145, P=0.023). In the imaging examination of the nervous system, the Alarcon score of gH1 group was lower than that of gH2 group (0.4±0.3 vs. 1.3±1.1, t=-2.459,P=0.024).No significant statistical difference was found in the probability of motor or language development lag in gH2 group and gH1 group (4/7 vs.4/14, P=0.346). Conclusions: Compared with gH2 infection, gH1 infection in children has a younger gestational age. The major type of hearing loss in neonatal period is gH1 infection. Children with gH2 congenital infections are more likely to suffer from nervous systems damage.
Collapse
Affiliation(s)
- L Y Chen
- Laboratory Center, the Children's Hospital, Zhejiang University School of Medicine, Hangzhou 310052, China
| | - W Li
- Laboratory Center, the Children's Hospital, Zhejiang University School of Medicine, Hangzhou 310052, China
| | - J L Xu
- Department of Neurology, the Children's Hospital, Zhejiang University School of Medicine, Hangzhou 310052, China
| | - R Tao
- Laboratory Center, the Children's Hospital, Zhejiang University School of Medicine, Hangzhou 310052, China
| | - H M Li
- Laboratory Center, the Children's Hospital, Zhejiang University School of Medicine, Hangzhou 310052, China
| | - L F Liu
- Laboratory Center, the Children's Hospital, Zhejiang University School of Medicine, Hangzhou 310052, China
| | - S Q Shang
- Laboratory Center, the Children's Hospital, Zhejiang University School of Medicine, Hangzhou 310052, China
| |
Collapse
|
28
|
Cao D, Li DJ, Wang Y, Zhang YH, Chen LY, Wang LC. [Clinical significance of CTP combined with ABIC score in predicting the short-term prognosis of patients with hepatitis B virus-related acute-on-chronic liver failure]. Zhonghua Gan Zang Bing Za Zhi 2019; 27:118-122. [PMID: 30818916 DOI: 10.3760/cma.j.issn.1007-3418.2019.02.009] [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: 02/05/2023]
Abstract
Objective: To investigate the risk factors affecting the short-term prognosis of patients with hepatitis B virus-related acute-on-chronic liver failure (HBV-ACLF), and establish a new scoring model to predict the short-term prognosis of patients. Methods: This study enrolled 222 patients with HBV-ACLF. According to their clinical outcomes during hospitalization and 90 days after discharge, they were divided into survival and death group. Clinical data were collected to calculate the Child-Turcotte-Pugh (CTP), model for end-stage liver disease (MELD), albumin-bilirubin (ALBI), and age-bilirubin-international normalized ratio-creatinine (ABIC) scores for prognosis. Multivariate logistic regression analysis was used to analyze the independent risk factors affecting 90-day mortality in HBV-ACLF patients. Cox regression model was used to establish a new prediction model. Area under the receiver operating characteristic curve was used to calculate short-term prognostic value of the models. K-M survival curve was used to predict the prognosis of patients. Results: CTP and ABIC scores were independent risk factors for 90-day mortality in HBV-ACLF patients, and the risk of death from liver failure had increased with increase of score. Cox regression model established a new predictive model CTP-ABIC = 0.551 × CTP + 0.297 × ABIC. Area under the receiver operating characteristic curve of all three scoring models (CTP, ABIC and CTP-ABIC) were 0.878, 0.829, 0.927, respectively. CTP-ABIC score was superior to the CTP and ABIC score (P value < 0.001). Patients with CTP-ABIC score ≥9.08 had higher mortality rate than patients with CTP-ABIC score < 9.08, and the difference was statistically significant (P < 0.001). Conclusion: All three scoring systems can predict short-term prognosis in patients with HBV-ACLF, but the accuracy of CTP-ABIC is superior.
Collapse
Affiliation(s)
- D Cao
- Center of Infectious Diseases, West China Hospital, Sichuan University, Chengdu 610041, China
| | | | | | | | | | | |
Collapse
|
29
|
Ren JY, Chen LY, Li HC, Qin YJ, Cao Y, Wang TY, Zhou SQ. [ANAMMOX Reactor with Two Kinds of Inoculated Sludge: Start-up and Kinetics Characteristics]. Huan Jing Ke Xue 2019; 40:1405-1411. [PMID: 31087991 DOI: 10.13227/j.hjkx.201806120] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Two different mixed sludges (aerobic nitrifying sludge and ANAMMOX-denitrification sludge:R1, and anaerobic digestion flocculent sludge and ANAMMOX-denitrification sludge:R2), were used as inocula in two UBF reactors to enrich Anammox bacteria. Both kinds of mixed sludge set up the Anammox process successfully. It took 36 days for R1, while R2 required 53 days. Nitrogen removal rates of R1 and R2 were high during the whole operation. During the stable operation stage, the removal rates of NH4+-N, NO2--N, and TN were about 99.92%, 96.64%, and 81.87% for R1; and 97.54%, 94.91%, and 80.98% for R2. Illumina High-throughput Sequencing revealed Candidatus Kuenenia was in the top six taxa in the two reactors with 3.22% relative abundance in R1 and 2.35% in R2 after the successful start-up. Simulation results indicated that the Modified Stover-Kincannon model and the second-order model were appropriate models. It was deduced that the N-removal potential of R1 was a little greater than that of R2 after comparing the projected maximum substrate removal rate Umax of the two reactors.
Collapse
Affiliation(s)
- Jun-Yi Ren
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, China
| | - Lin-Yi Chen
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, China
| | - Hui-Chun Li
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, China
| | - Yu-Jie Qin
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, China
| | - Yan Cao
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, China
| | - Tong-Yu Wang
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, China
| | - Shao-Qi Zhou
- School of Environment and Energy, South China University of Technology, Guangzhou 510006, China
| |
Collapse
|
30
|
Zhu WH, Chen LY, Lu CR, Su L, Fang LZ. [Association between the accumulation of metabolic syndrome abnormal components and arterial pulse wave velocity among adult individuals undergoing routine health examination]. Zhonghua Xin Xue Guan Bing Za Zhi 2019; 46:810-817. [PMID: 30369173 DOI: 10.3760/cma.j.issn.0253-3758.2018.10.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the association between the accumulation of metabolic syndrome (MS) components and abnormal brachial ankle pulse wave velocity (baPWV), and to investigate the effect of accumulation of abnormal metabolic components on abnormal baPWV among adult individuals undergoing routine health examination. Methods: It's a cross-sectional study. Data from 9 201 stratified sampled subjects, aged between 25 to 75 years old, who took part in the annual health checkups in 11 cities of Zhejiang Province from January to December 2016, were analyzed. Blood pressure(BP), fasting plasma glucose(FPG), waist circumference(WC), triglyceride(TG), high-density lipoprotein cholesterols(HDL-C) were defined as MS components. The baPWV was measured by VP-1000 (BP-203RPE Ⅲ) and ΔbaPWV (measured baPWV-reference baPWV/reference baPWV) ×100 (%)> 10% was defined as abnormal. The relationship between MS components and ΔbaPWV was analyzed by linear regression, and impact of accumulation of MS components on ΔbaPWV was analyzed by logistic regression, and the ΔbaPWV in subjects with different levels of MS components were analyzed by analysis of variance. Results: (1) The linear regression analysis demonstrated a positive correlation between ΔbaPWV and MS components including systolic blood pressure, diastolic blood pressure, WC, FPG, TG, while ΔbaPWV was negatively correlated with HDL-C. The β values were 0.518, 0.616, 0.208, 2.778, 1.862, -1.339, respectively (all P<0.001), indicating a strong association between ΔbaPWV and systolic blood pressure, diastolic blood pressure, and FPG. (2) The logistic regression analysis showed that the proportion of abnormal ΔbaPWV was 2.595 times higher in MS individuals than in non-MS individuals (P<0.001). Abnormal ΔbaPWV increased in proportion with increase in numbers of the metabolic components (OR=1.913, 2.884, 3.833, 6.161, 11.176 in individuals with 1,2,3,4,5 metabolic components, respectively, all P<0.001). (3) The logistic analysis suggested that each component of MS could affect baPWV,and OR was 4.68, 2.45 for systolic blood pressure and/or diastolic blood pressure and FPG. All combinations of 2 components of MS also significantly affected baPWV,and OR value was the highest (5.104(95%CI 4.281-6.085), P<0.001) for FPG+BP. All combinations of 3 components of MS significantly affected baPWV,and OR value was the highest(5.385(95%CI 4.245-6.831), P<0.001) for BP+FPG+TG. All combinations of 4 components of MS affected baPWV,and OR value was the highest (6.519(95%CI 4.731-8.984), P<0.001) for BP+FPG+WC+TG. (4) Finally, every component of MS was divided into 3 levels, their impact on abnormal ΔbaPWV was analyzed. Prevalence of abnormal ΔbaPWV significantly increased with the increasing levels of the metabolic components expect for HDL-C, the F values were 1 224.66, 832.89, 192.72, 112.79 and 56.22, respectively (all P<0.001), indicating that higher levels of metabolic components significantly affected the ΔbaPWV. Conclusions: MS and accumulation of abnormal MS components are closely related with abnormal ΔbaPWV, and the combination of BP and FPG have the greatest impact on the abnormal ΔbaPWV. Analysis on the accumulation of MS components might serve as an early indicator of arteriosclerosis.
Collapse
Affiliation(s)
- W H Zhu
- Department of General Medicine, Sir Run Run Shaw Hospital and Institute of Clinical Medicine, Zhejiang University School of Medicine, Hangzhou 310016, China
| | | | | | | | | |
Collapse
|
31
|
Hwang JS, Kim YJ, Yoo YJ, Kim KW, Rhee JY, Chen LY, Li SR, Guo XW, Lee YP. Tunable quad-band transmission response, based on single-layer metamaterials. Opt Express 2018; 26:31607-31616. [PMID: 30650744 DOI: 10.1364/oe.26.031607] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2018] [Accepted: 11/04/2018] [Indexed: 06/09/2023]
Abstract
We investigated the electromagnetically induced transparency (EIT)-like effects in planar metamaterials (MMs) at microwave (GHz) frequencies. The specific MMs that were used in this study consist of cut-wire resonator/ring resonator, which achieved the dual EIT-like effects in a single-layer through the bright- and quasi-dark-mode coupling and the lattice mode coupling. In addition, by varying the distance between the two resonators, the quad-band EIT spectral response in the microwave region was obtained, and the group refractive index at the EIT-like resonance of proposed design reached up to 4,000. This study provides the design approach to the multispectral EIT-like effects and might suggest potential applications in a variety of fields, for example, low-loss slow-light device, multiple switching sensor, and other sensing devices.
Collapse
|
32
|
Wang J, Wang Z, Zhang RJ, Zheng YX, Chen LY, Wang SY, Tsoo CC, Huang HJ, Su WS. A first-principles study of the electrically tunable band gap in few-layer penta-graphene. Phys Chem Chem Phys 2018; 20:18110-18116. [PMID: 29938269 DOI: 10.1039/c8cp02624f] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/24/2023]
Abstract
The structural and electronic properties of bilayer (AA- and AB-stacked) and tri-layer (AAA-, ABA- and AAB-stacked) penta-graphene (PG) have been investigated in the framework of density functional theory. The present results demonstrate that the ground state energy in AB stacking is lower than that in AA stacking, whereas ABA stacking is found to be the most energetically favorable, followed by AAB and AAA stackings. All considered model configurations are found to be semiconducting, independent of the stacking sequence. In the presence of a perpendicular electric field, their band gaps can be significantly reduced and completely closed at a specific critical electric field strength, demonstrating a Stark effect. These findings show that few-layer PG will have tremendous opportunities to be applied in nanoscale electronic and optoelectronic devices owing to its tunable band gap.
Collapse
Affiliation(s)
- Jinjin Wang
- Shanghai Ultra-Precision Optical Manufacturing Engineering Center and Department of Optical Science and Engineering, Fudan University, Shanghai 200433, China.
| | | | | | | | | | | | | | | | | |
Collapse
|
33
|
Dong F, Guo YR, Qiao C, Wang JJ, Shen H, Su WS, Zheng YX, Zhang RJ, Chen LY, Wang SY, Miao XS, Xu M. Optical Properties and Local Structure Evolution during Crystallization of Ga 16Sb 84 Alloy. Sci Rep 2018; 8:9605. [PMID: 29941896 PMCID: PMC6018500 DOI: 10.1038/s41598-018-27972-3] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.5] [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: 03/27/2018] [Accepted: 06/07/2018] [Indexed: 11/29/2022] Open
Abstract
Phase-change memory is one of the most promising candidates for future memory technologies. However, most of the phase-change memories are based on chalcogenides, while other families of materials for this purpose remain insufficiently studied. In this work, we investigate the optical properties and microstructure of Ga16Sb84 by an in-situ ellipsometer and X-ray diffraction. Our experimental results reveal that the Ga16Sb84 films exhibit a relatively high crystallization temperature of ~250 °C, excelling in long data retention. In addition, a large optical contrast exists between the amorphous and crystalline states, which may make it suitable for use in optical discs. Molecular dynamics simulations indicate that a unique local structure order in the amorphous and crystalline phases is responsible for the optical properties observed in the experiment. The similarity found in the short-range orders of the amorphous and crystalline phases is beneficial to better understanding the fast phase transition of phase-change memory.
Collapse
Affiliation(s)
- F Dong
- Shanghai Ultra-Precision Optical Manufacturing Engineering Center and Department of Optical Science and Engineering, Fudan University, Shanghai, 200433, China
| | - Y R Guo
- Shanghai Ultra-Precision Optical Manufacturing Engineering Center and Department of Optical Science and Engineering, Fudan University, Shanghai, 200433, China
| | - C Qiao
- Shanghai Ultra-Precision Optical Manufacturing Engineering Center and Department of Optical Science and Engineering, Fudan University, Shanghai, 200433, China
| | - J J Wang
- Shanghai Ultra-Precision Optical Manufacturing Engineering Center and Department of Optical Science and Engineering, Fudan University, Shanghai, 200433, China
| | - H Shen
- Shanghai Ultra-Precision Optical Manufacturing Engineering Center and Department of Optical Science and Engineering, Fudan University, Shanghai, 200433, China
| | - W S Su
- National Taiwan Science Education Center, Taipei 11165, Taiwan and Department of Electro-Optical Engineering, National Taipei University of Technology, Taipei, 10608, Taiwan
- National Chip Implementation Center, Hsinchu, 30078, Taiwan
| | - Y X Zheng
- Shanghai Ultra-Precision Optical Manufacturing Engineering Center and Department of Optical Science and Engineering, Fudan University, Shanghai, 200433, China
| | - R J Zhang
- Shanghai Ultra-Precision Optical Manufacturing Engineering Center and Department of Optical Science and Engineering, Fudan University, Shanghai, 200433, China
| | - L Y Chen
- Shanghai Ultra-Precision Optical Manufacturing Engineering Center and Department of Optical Science and Engineering, Fudan University, Shanghai, 200433, China
| | - S Y Wang
- Shanghai Ultra-Precision Optical Manufacturing Engineering Center and Department of Optical Science and Engineering, Fudan University, Shanghai, 200433, China.
- Key Laboratory for Information Science of Electromagnetic Waves (MoE), Shanghai, 200433, China.
| | - X S Miao
- School of Optical & Electronic Information, Huazhong University of Science & Technology, Wuhan, 430074, China
| | - M Xu
- School of Optical & Electronic Information, Huazhong University of Science & Technology, Wuhan, 430074, China.
| |
Collapse
|
34
|
Lutsey PL, Norby FL, Alonso A, Cushman M, Chen LY, Michos ED, Folsom AR. Atrial fibrillation and venous thromboembolism: evidence of bidirectionality in the Atherosclerosis Risk in Communities Study. J Thromb Haemost 2018; 16:670-679. [PMID: 29431904 PMCID: PMC5893387 DOI: 10.1111/jth.13974] [Citation(s) in RCA: 38] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2017] [Indexed: 11/29/2022]
Abstract
Essentials Atrial fibrillation (AF) may increase risk of venous thromboembolism (VTE), and vice versa. Bidirectionality was assessed prospectively via data from 15 129 black and white individuals. AF was associated with greater risk of developing VTE, and VTE with greater risk of AF. Associations were strongest among blacks and in the first 6 months after initial diagnosis. SUMMARY Background Atrial fibrillation (AF) and venous thromboembolism (VTE) frequently co-occur. These conditions have shared risk factors and are accompanied by coagulation abnormalities. Furthermore, mechanistic pathways may directly link the disorders. Objectives To test the hypothesis that individuals with incident AF are at greater risk of developing VTE, and those with VTE are at elevated risk of AF. We also tested whether associations were stronger in the first 6 months after the initial diagnosis, and explored race differences. Patients/Methods A total of 15 129 ARIC study participants (45-64 years, 55% female, 26% Black) were followed from 1987 to 2011 for incident AF and VTE (median follow-up 19.8 years). Multivariable-adjusted Cox regression was used, with AF and VTE modeled as time-dependent exposures. Results Incident AF was associated with greater risk of subsequent incident VTE (hazard ratio [95% CI], 1.71 [1.32-2.22]); the association was stronger in Black people (2.30 [1.48-3.58]) and during the first 6 months after AF diagnosis (5.08 [3.08-8.38]). Similarly, incident VTE was associated with increased risk of incident AF (1.73 [1.34-2.24]), especially in Black people (2.40 [1.55-3.74]) and in the first 6 months after VTE diagnosis (4.50 [2.61-7.77]). Conclusions The occurrence of AF was associated with increased risk of incident VTE, and occurrence of VTE was associated with greater risk of incident AF. Associations were particularly strong among Black people and during the first 6 months after the initial diagnosis, although they remained elevated even after 6 months. These findings highlight patient populations that may be at increased risk of AF and VTE, and perhaps should be targeted with preventive strategies.
Collapse
Affiliation(s)
- P L Lutsey
- Division of Epidemiology and Community Health, University of Minnesota, Minneapolis, MN, USA
| | - F L Norby
- Division of Epidemiology and Community Health, University of Minnesota, Minneapolis, MN, USA
| | - A Alonso
- Department of Epidemiology, Rollins School of Public Health, Emory University, Atlanta, GA, USA
| | - M Cushman
- Department of Medicine, Larner College of Medicine at the University of Vermont, Burlington, VT, USA
| | - L Y Chen
- Cardiovascular Division, Department of Medicine, University of Minnesota, Minneapolis, MN, USA
| | - E D Michos
- Division of Cardiology and Department of Epidemiology, Johns Hopkins University, Baltimore, MD, USA
| | - A R Folsom
- Division of Epidemiology and Community Health, University of Minnesota, Minneapolis, MN, USA
| |
Collapse
|
35
|
Liu XY, Zhang JR, Yan L, Chen LY, Xu YJ, Wei XT, Wang ZF, Meng QY, Hao WD, Wang HJ. [Study on teaching capacity building of public health]. Zhonghua Yu Fang Yi Xue Za Zhi 2018; 52:322-324. [PMID: 29973017 DOI: 10.3760/cma.j.issn.0253-9624.2018.03.021] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Affiliation(s)
- X Y Liu
- School of Public Health, Peking University, Beijing 100191, China
| | | | | | | | | | | | | | | | | | | |
Collapse
|
36
|
Chen LY, Zhai XF, Chen Z, Zhu JF, Qian PA, Zhao HT, Ling CQ. Jie-du granule preparation for the treatment of advanced hepatocellular carcinoma: a retrospective cohort study of 177 patients. Oncotarget 2018; 8:30471-30476. [PMID: 27791987 PMCID: PMC5444757 DOI: 10.18632/oncotarget.12887] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/28/2016] [Accepted: 10/19/2016] [Indexed: 01/02/2023] Open
Abstract
OBJECTIVE To compare the clinical efficacy of Jie-du granule preparation versus best supportive treatment in patients with advanced hepatocellular carcinoma. METHODS A retrospective cohort study was carried out in patients with advanced liver cancer. Patients were divided into Jie-du granule treatment (JD) and best supportive treatment (BST) groups. The main outcomes included median overall survival time. RESULTS A total of 177 patients with Barcelona Clinic Liver Cancer stage C receiving JD granule treatment or BST were enrolled between January 2012 and December 2014. The overall median survival time was 6.2 months (95% confidence interval [CI] 4.546-7.854) in the JD group versus 4 months (95% CI 3.471-4.529) in the BST group. Significant independent risk factors were alpha-fetoprotein (P = 0.048), Child-Pugh class (P = 0.005), vascular invasion (P = 0.003), and extrahepatic metastasis (P = 0.0018). For patients with two or fewer of these independent risk factors, the overall median survival of those treated with JD was significantly longer than that of patients receiving BST (P < 0.05). CONCLUSION Jie-du granule preparation may prolong survival of patients with advanced HCC.
Collapse
Affiliation(s)
- L Y Chen
- Department of Traditional Chinese Medicine, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - X F Zhai
- Department of Traditional Chinese Medicine, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Z Chen
- Department of Traditional Chinese Medicine, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - J F Zhu
- Department of Liver Disease, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai, China
| | - P A Qian
- Department of Liver Disease, Shanghai Municipal Hospital of Traditional Chinese Medicine, Shanghai, China
| | - H T Zhao
- Department of Traditional Chinese Medicine, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - C Q Ling
- Department of Traditional Chinese Medicine, Changhai Hospital, Second Military Medical University, Shanghai, China
| |
Collapse
|
37
|
Wang Z, Cao X, Qiao C, Zhang RJ, Zheng YX, Chen LY, Wang SY, Wang CZ, Ho KM, Fan YJ, Jin BY, Su WS. Novel penta-graphene nanotubes: strain-induced structural and semiconductor-metal transitions. Nanoscale 2017; 9:19310-19317. [PMID: 29192922 DOI: 10.1039/c7nr06835b] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Research into novel one-dimensional (1D) materials and associated structural transitions is of significant scientific interest. It is widely accepted that a 1D system with a short-range interaction cannot have 1D phase transition at finite temperature. Herein, we propose a series of new stable carbon nanotubes by rolling up penta-graphene sheets, which exhibit fascinating well-defined 1D phase transitions triggered by axial strain. Our first-principles calculations show that such penta-graphene nanotubes (PGNTs) are dynamically stable by phonon calculations, but transform from a tri-layer structure to a highly defective single-walled nanotube at low temperature in molecular dynamics simulations. We show that moderate compressive strains can drive structural transitions of (4,4), (5,5), and (6,6) PGNTs, during which the distances of neighboring carbon dimers in the inner shell have a sudden drop, corresponding to dimer-dimer nonbonding to bonding transitions. After such transition, the tubes become much more thermally stable and undergo semiconductor-metal transitions under increasing strain. The band gaps of PGNTs are not sensitive to chirality whereas they can be tuned effectively from visible to short-wavelength infrared by appropriate strain, making them appealing materials for flexible nano-optoelectronics. These findings provide useful insight into unusual phase transitions in low-dimensional systems.
Collapse
Affiliation(s)
- Zhanyu Wang
- Shanghai Ultra-Precision Optical Manufacturing Engineering Center and Department of Optical Science and Engineering, Fudan University, Shanghai 200433, China.
| | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
38
|
Zeng Y, Zhang JK, Tang Y, Yang ZH, Su JL, Chen LY, Huang ZH, Zeng PY, Jian ZY, Du WM, Yang MW, Wang TT, Wang FZ, Liang XF, Zheng HZ. [Safety evaluation of 10 μg recombinant hepatitis B vaccine ( saccharomyces cerecisiae yeast) based on the results of a phase of Ⅳ clinical trial]. Zhonghua Yu Fang Yi Xue Za Zhi 2017; 51:1121-1123. [PMID: 29262496 DOI: 10.3760/cma.j.issn.0253-9624.2017.12.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Affiliation(s)
- Y Zeng
- Shenzhen Kangtai Biological Products CO., LTD., Shenzhen 518057, China
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
39
|
Yang L, Li HY, Wang PW, Wu SY, Guo GQ, Liao B, Guo QL, Fan XQ, Huang P, Lou HB, Guo FM, Zeng QS, Sun T, Ren Y, Chen LY. Structural responses of metallic glasses under neutron irradiation. Sci Rep 2017; 7:16739. [PMID: 29196681 PMCID: PMC5711955 DOI: 10.1038/s41598-017-17099-2] [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] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/16/2017] [Accepted: 11/20/2017] [Indexed: 11/29/2022] Open
Abstract
Seeking nuclear materials that possess a high resistance to particle irradiation damage is a long-standing issue. Permanent defects, induced by irradiation, are primary structural changes, the accumulation of which will lead to structural damage and performance degradation in crystalline materials served in nuclear plants. In this work, structural responses of neutron irradiation in metallic glasses (MGs) have been investigated by making a series of experimental measurements, coupled with simulations in ZrCu amorphous alloys. It is found that, compared with crystalline alloys, MGs have some specific structural responses to neutron irradiation. Although neutron irradiation can induce transient vacancy-like defects in MGs, they are fully annihilated after structural relaxation by rearrangement of free volumes. In addition, the rearrangement of free volumes depends strongly on constituent elements. In particular, the change in free volumes occurs around the Zr atoms, rather than the Cu centers. This implies that there is a feasible strategy for identifying glassy materials with high structural stability against neutron irradiation by tailoring the microstructures, the systems, or the compositions in alloys. This work will shed light on the development of materials with high irradiation resistance.
Collapse
Affiliation(s)
- L Yang
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, P.R. China.
| | - H Y Li
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, P.R. China
| | - P W Wang
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, P.R. China
| | - S Y Wu
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, P.R. China
| | - G Q Guo
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, P.R. China
| | - B Liao
- College of Materials Science and Technology, Nanjing University of Aeronautics and Astronautics, Nanjing, 210016, P.R. China
| | - Q L Guo
- Department of Mechanical & Aerospace Engineering, Missouri University of Science & Technology, Rolla, MO, 65409, USA
| | - X Q Fan
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang, 621900, P.R. China
| | - P Huang
- Institute of Nuclear Physics and Chemistry, China Academy of Engineering Physics, Mianyang, 621900, P.R. China
| | - H B Lou
- Center for High Pressure Science and Technology Advanced Research (HPSTAR), 1690 Cailun Road, Pudong, Shanghai, 201203, P.R. China
| | - F M Guo
- Advanced Photon Source, Argonne National Laboratory, Lemont, Illinois, 60439, USA
| | - Q S Zeng
- Center for High Pressure Science and Technology Advanced Research (HPSTAR), 1690 Cailun Road, Pudong, Shanghai, 201203, P.R. China
| | - T Sun
- Advanced Photon Source, Argonne National Laboratory, Lemont, Illinois, 60439, USA
| | - Y Ren
- Advanced Photon Source, Argonne National Laboratory, Lemont, Illinois, 60439, USA
| | - L Y Chen
- Department of Mechanical & Aerospace Engineering, Missouri University of Science & Technology, Rolla, MO, 65409, USA
| |
Collapse
|
40
|
Abstract
Objective The objective of this paper is to investigate the association of clinical manifestations and laboratory parameters between familial systemic lupus erythematosus (SLE) and sporadic SLE. Methods All relevant literature was retrieved from the PubMed, EMBASE, Web of Science and China National Knowledge Infrastructure (CNKI) databases. The qualities of these studies were evaluated using a modified version of the Newcastle-Ottawa scale. The characteristics and clinical manifestations of involved individuals were extracted from each study. Pooled odds ratio (OR) was calculated using the random effects-method, and the heterogeneity between studies was quantified using the I2 statistic. Results Of 330 studies identified by the search strategy, six were included in this review. In total, 733 cases were familial SLE and 1405 were sporadic SLE. Analysis revealed that photosensitivity, nephritis and thrombocytopenia were negatively associated with familial SLE, with OR (95% CI) values of 0.73 (0.60-0.89), 0.72 (0.59-0.88) and 0.75 (0.57-0.98), respectively. Conclusions Photosensitivity, thrombocytopenia and renal involvement could be more common in non-familial SLE, which should be further confirmed by well-designed studies with large populations.
Collapse
Affiliation(s)
- L Y Chen
- Department of Dermatology, 56713 Sun Yat-sen Memorial Hospital, Sun Yat-sen University , Guangzhou, China
| | - Z R Shi
- Department of Dermatology, 56713 Sun Yat-sen Memorial Hospital, Sun Yat-sen University , Guangzhou, China
| | - G Z Tan
- Department of Dermatology, 56713 Sun Yat-sen Memorial Hospital, Sun Yat-sen University , Guangzhou, China
| | - Y F Han
- Department of Dermatology, 56713 Sun Yat-sen Memorial Hospital, Sun Yat-sen University , Guangzhou, China
| | - Z Q Tang
- Department of Dermatology, 56713 Sun Yat-sen Memorial Hospital, Sun Yat-sen University , Guangzhou, China
| | - L Wang
- Department of Dermatology, 56713 Sun Yat-sen Memorial Hospital, Sun Yat-sen University , Guangzhou, China
| |
Collapse
|
41
|
Liu XY, Fan YC, Gao S, Zhao J, Chen LY, Li F, Wang K. Methylation of SOX1 and VIM promoters in serum as potential biomarkers for hepatocellular carcinoma. Neoplasma 2017; 64:745-753. [PMID: 28592127 DOI: 10.4149/neo_2017_513] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 08/15/2023]
Abstract
Aberrant methylation of tumor-related genes has been identified as a promising biomarker for hepatocellular carcinoma (HCC). This study aimed to investigate the diagnostic value of SRY (sex determining region Y)-box 1 (SOX1) and Vimentin (VIM) promoter methylation for HCC. The study included 360 subjects, 240 patients with HCC, 29 with liver cirrhosis (LC), 66 with chronic hepatitis B (CHB) and 25 healthy controls (HCs). The methylation status of SOX1 and VIM promoters in the serum was detected by methylation-specific polymerase chain reaction (MSP). The methylation frequencies of SOX1 and VIM promoters in HCC patients were significantly higher than those in LC (p<0.001 and p<0.001), CHB (p<0.001 and p<0.001) and HC (p<0.001 and p<0.001) subjects. Furthermore, hypermethylation of SOX1 and VIM promoters were found in patients with advanced TNM stage (III-IV) and larger tumor size (≥5 cm) compared with early stage (I-II) (p<0.001 and p=0.004) patients with smaller tumor size (<3 cm) (p=0.018 and p=0.001). Moreover, the VIM promoter methylation frequency was higher in patients with portal vein tumor thrombosis (PVTT) (p=0.006) and vascular invasion (p=0.003). In addition, the combination of α-fetoprotein (≥20 ng/ml) with SOX1 and VIM promoter methylation significantly improved their diagnostic value. In conclusions, aberrant methylation of SOX1 and VIM promoters may be potential biomarkers for noninvasive detection of HCC and HCC metastasis.
Collapse
|
42
|
Qiu HJ, Chen LY, Ito Y, Kang JL, Guo XW, Liu P, Kashani H, Hirata A, Fujita T, Chen MW. An ultrahigh volumetric capacitance of squeezable three-dimensional bicontinuous nanoporous graphene. Nanoscale 2016; 8:18551-18557. [PMID: 27782251 DOI: 10.1039/c5nr08852f] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
Graphene with a large specific surface area and high conductivity has a large specific capacitance. However, its volumetric capacitance is usually very low because the restacking of 2D graphene sheets leads to the loss of the large ion-accessible surface area. Here we report squeezable bicontinuous nanoporous nitrogen-doped graphene, which is extremely flexible and can tolerate large volume contraction by mechanical compression without the face-to-face restacking occurring. The compressed nanoporous N-doped graphene with a large ion accessible surface area and high conductivity shows an ultrahigh volumetric capacitance of ∼300 F cm-3 together with excellent cycling stability and high rate performance.
Collapse
Affiliation(s)
- H-J Qiu
- WPI Advanced Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan. and School of Chemistry and Chemical Engineering, Chongqing University, Chongqing 400044, China
| | - L Y Chen
- WPI Advanced Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan.
| | - Y Ito
- WPI Advanced Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan.
| | - J L Kang
- WPI Advanced Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan.
| | - X W Guo
- WPI Advanced Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan.
| | - P Liu
- WPI Advanced Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan.
| | - H Kashani
- WPI Advanced Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan.
| | - A Hirata
- WPI Advanced Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan.
| | - T Fujita
- WPI Advanced Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan.
| | - M W Chen
- WPI Advanced Institute for Materials Research, Tohoku University, Sendai 980-8577, Japan. and State Key Laboratory of Metal Matrix Composites, School of Materials Science and Engineering, Shanghai Jiao Tong University, Shanghai 200030, China and CREST, Japan Science and Technology Agency, Saitama 332-0012, Japan
| |
Collapse
|
43
|
Wang Z, Huang L, Yue GQ, Shen B, Dong F, Zhang RJ, Zheng YX, Wang SY, Wang CZ, Kramer MJ, Ho KM, Chen LY. Effects of Oxygen Impurities on Glass-Formation Ability in Zr2Cu Alloy. J Phys Chem B 2016; 120:9223-9. [PMID: 27509394 DOI: 10.1021/acs.jpcb.6b06306] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Using ab initio molecular dynamics simulations, we show that oxygen (O) impurities have a noticeable influence on the glass-formation ability (GFA) in Zr2Cu alloy. Cu-centered icosahedral clusters and Zr-centered Kasper polyhedra are the dominate short-range orders in undercooled Zr2Cu liquid which are most likely to be responsible for the glass formation in Zr2Cu systems. When O is introduced, a Zr octahedron is formed around the O impurity. Most of the Zr atoms in the octahedron also serve as the bridging atoms for cross-linked Kasper polyhedral network, resulting in an O-centered medium range order (MRO) structure. Meanwhile, Cu atoms are moved away from the first shell of O-centered octahedral clusters. With 1 at. % O impurities, the fractions of Zr-centered clusters are less affected, while the increase of ideal icosahedral order and decrease of distorted icosahedral order lead to a more stable atomic structure. This result suggests that a low concentration of O impurities would improve the GFA in Zr2Cu alloy. However, when ∼5 at. % O impurities are included, the ideal icosahedral clusters and Zr-centered Kasper polyhedra are seriously suppressed by the formation of O-centered MRO, which can lead to deterioration of GFA. Our analyses provide useful insight into glass formation behavior in O-doped metallic alloy systems.
Collapse
Affiliation(s)
- Zhanyu Wang
- Shanghai Ultra-Precision Optical Manufacturing Engineering Center and Department of Optical Science and Engineering, Fudan University , Shanghai 200433, China
| | - Li Huang
- Department of Physics, South University of Science and Technology of China , Shenzhen, Guangdong 518055, China.,Ames Laboratory, U.S. Department of Energy and Department of Physics and Astronomy, Iowa State University , Ames, Iowa 50011, United States
| | - G Q Yue
- Shanghai Ultra-Precision Optical Manufacturing Engineering Center and Department of Optical Science and Engineering, Fudan University , Shanghai 200433, China
| | - B Shen
- Shanghai Ultra-Precision Optical Manufacturing Engineering Center and Department of Optical Science and Engineering, Fudan University , Shanghai 200433, China
| | - F Dong
- Shanghai Ultra-Precision Optical Manufacturing Engineering Center and Department of Optical Science and Engineering, Fudan University , Shanghai 200433, China
| | - R J Zhang
- Shanghai Ultra-Precision Optical Manufacturing Engineering Center and Department of Optical Science and Engineering, Fudan University , Shanghai 200433, China
| | - Y X Zheng
- Shanghai Ultra-Precision Optical Manufacturing Engineering Center and Department of Optical Science and Engineering, Fudan University , Shanghai 200433, China
| | - S Y Wang
- Shanghai Ultra-Precision Optical Manufacturing Engineering Center and Department of Optical Science and Engineering, Fudan University , Shanghai 200433, China.,Ames Laboratory, U.S. Department of Energy and Department of Physics and Astronomy, Iowa State University , Ames, Iowa 50011, United States.,Key Laboratory for Information Science of Electromagnetic Waves (MoE), Shanghai 200433, China
| | - C Z Wang
- Ames Laboratory, U.S. Department of Energy and Department of Physics and Astronomy, Iowa State University , Ames, Iowa 50011, United States
| | - M J Kramer
- Ames Laboratory, U.S. Department of Energy and Department of Physics and Astronomy, Iowa State University , Ames, Iowa 50011, United States
| | - K M Ho
- Ames Laboratory, U.S. Department of Energy and Department of Physics and Astronomy, Iowa State University , Ames, Iowa 50011, United States
| | - L Y Chen
- Shanghai Ultra-Precision Optical Manufacturing Engineering Center and Department of Optical Science and Engineering, Fudan University , Shanghai 200433, China
| |
Collapse
|
44
|
Abstract
Marine actinobacteria are well recognized for their capabilities to produce valuable natural products, which have great potential for applications in medical, agricultural, and fine chemical industries. In addition to producing unique enzymes responsible for biosynthesis of natural products, many marine actinobacteria also produce hydrolytic enzymes which are able to degrade various biopolymers, such as cellulose, xylan, and chitin. These enzymes are important to produce biofuels and biochemicals of interest from renewable biomass. In this chapter, the recent reports of novel enzymes produced by marine actinobacteria are reviewed, and advanced technologies that can be applied to search for novel marine enzymes as well as for improved enzyme production by marine actinobacteria are summarized, which include ribosome engineering, genome mining, as well as synthetic biology studies.
Collapse
Affiliation(s)
- X Q Zhao
- State Key Laboratory of Microbial Metabolism and School of Life Science and Biotechnology, Shanghai Jiao Tong University, Shanghai, China.
| | - X N Xu
- School of Life Science and Biotechnology, Dalian University of Technology, Dalian, China
| | - L Y Chen
- School of Life Science and Biotechnology, Dalian University of Technology, Dalian, China
| |
Collapse
|
45
|
Xue XW, Sun BC, Wang W, Tian YW, Li XQ, Chen LY, Wang XM, Wang DT. [Analysis of the first national "Huaxiabei" frozen section competition]. Zhonghua Bing Li Xue Za Zhi 2016; 45:413-414. [PMID: 27256053 DOI: 10.3760/cma.j.issn.0529-5807.2016.06.014] [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: 06/05/2023]
|
46
|
Yan N, Chen LY. [Textual research on wei sheng (hygiene) and gong gong wei sheng (public health)]. Zhonghua Yi Shi Za Zhi 2016; 46:90-5. [PMID: 27255197 DOI: 10.3760/cma.j.issn.0255-7053.2016.02.006] [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
Wei sheng, a verb-object word group existed since the ancient time, referring to"protection of life", and it was evolved as a single word which can be translated as"hygiene"in modern times with multiple implications like"cleanliness","sterilization", and"prevention of disease", etc. Gong gong wei sheng was isolated from"hygiene", which has become a new term. In the Republic of China, scholars had made preliminary studies on the translation of"hygiene"during which gong gong wei sheng, and"guo min wei sheng"(national hygiene) and"gong zhong wei sheng"(people's hygiene) appeared also. Though the term"public health"was defined by the WHO and gong gong wei sheng was defined by Chinese scholars with gradual improvement, yet, the implications of both terms are still imperfect.
Collapse
Affiliation(s)
- N Yan
- School of Basic Medical Sciences, Shanghai University of Traditional Chinese Medicine, Shanghai, 201203, China
| | | |
Collapse
|
47
|
Shen B, Wang ZY, Dong F, Guo YR, Zhang RJ, Zheng YX, Wang SY, Wang CZ, Ho KM, Chen LY. Dynamics and Diffusion Mechanism of Low-Density Liquid Silicon. J Phys Chem B 2015; 119:14945-51. [PMID: 26540341 DOI: 10.1021/acs.jpcb.5b09138] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Abstract
A first-order phase transition from a high-density liquid to a low-density liquid has been proposed to explain the various thermodynamic anomies of water. It also has been proposed that such liquid-liquid phase transition would exist in supercooled silicon. Computer simulation studies show that, across the transition, the diffusivity drops roughly 2 orders of magnitude, and the structures exhibit considerable tetrahedral ordering. The resulting phase is a highly viscous, low-density liquid silicon. Investigations on the atomic diffusion of such a novel form of liquid silicon are of high interest. Here we report such diffusion results from molecular dynamics simulations using the classical Stillinger-Weber (SW) potential of silicon. We show that the atomic diffusion of the low-density liquid is highly correlated with local tetrahedral geometries. We also show that atoms diffuse through hopping processes within short ranges, which gradually accumulate to an overall random motion for long ranges as in normal liquids. There is a close relationship between dynamical heterogeneity and hopping process. We point out that the above diffusion mechanism is closely related to the strong directional bonding nature of the distorted tetrahedral network. Our work offers new insights into the complex behavior of the highly viscous low density liquid silicon, suggesting similar diffusion behaviors in other tetrahedral coordinated liquids that exhibit liquid-liquid phase transition such as carbon and germanium.
Collapse
Affiliation(s)
- B Shen
- Key Laboratory of Micro and Nano Photonic Structures (MoE) and Department of Optical Science and Engineering, Fudan University , Shanghai, 200433, China.,Ames Laboratory, U.S. Department of Energy and Department of Physics and Astronomy, Iowa State University , Ames, Iowa 50011, United States
| | - Z Y Wang
- Key Laboratory of Micro and Nano Photonic Structures (MoE) and Department of Optical Science and Engineering, Fudan University , Shanghai, 200433, China
| | - F Dong
- Key Laboratory of Micro and Nano Photonic Structures (MoE) and Department of Optical Science and Engineering, Fudan University , Shanghai, 200433, China
| | - Y R Guo
- Key Laboratory of Micro and Nano Photonic Structures (MoE) and Department of Optical Science and Engineering, Fudan University , Shanghai, 200433, China
| | - R J Zhang
- Key Laboratory of Micro and Nano Photonic Structures (MoE) and Department of Optical Science and Engineering, Fudan University , Shanghai, 200433, China
| | - Y X Zheng
- Key Laboratory of Micro and Nano Photonic Structures (MoE) and Department of Optical Science and Engineering, Fudan University , Shanghai, 200433, China
| | - S Y Wang
- Key Laboratory of Micro and Nano Photonic Structures (MoE) and Department of Optical Science and Engineering, Fudan University , Shanghai, 200433, China.,Ames Laboratory, U.S. Department of Energy and Department of Physics and Astronomy, Iowa State University , Ames, Iowa 50011, United States.,Key Laboratory for Information Science of Electromagnetic Waves (MoE) , Shanghai, 200433, China
| | - C Z Wang
- Ames Laboratory, U.S. Department of Energy and Department of Physics and Astronomy, Iowa State University , Ames, Iowa 50011, United States
| | - K M Ho
- Ames Laboratory, U.S. Department of Energy and Department of Physics and Astronomy, Iowa State University , Ames, Iowa 50011, United States
| | - L Y Chen
- Key Laboratory of Micro and Nano Photonic Structures (MoE) and Department of Optical Science and Engineering, Fudan University , Shanghai, 200433, China
| |
Collapse
|
48
|
Wang YF, Singh SB, Limaye MV, Shao YC, Hsieh SH, Chen LY, Hsueh HC, Wang HT, Chiou JW, Yeh YC, Chen CW, Chen CH, Ray SC, Wang J, Pong WF, Takagi Y, Ohigashi T, Yokoyama T, Kosugi N. Visualizing chemical states and defects induced magnetism of graphene oxide by spatially-resolved-X-ray microscopy and spectroscopy. Sci Rep 2015; 5:15439. [PMID: 26481557 PMCID: PMC4612711 DOI: 10.1038/srep15439] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.9] [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: 06/29/2015] [Accepted: 09/02/2015] [Indexed: 11/23/2022] Open
Abstract
This investigation studies the various magnetic behaviors of graphene oxide (GO) and reduced graphene oxides (rGOs) and elucidates the relationship between the chemical states that involve defects therein and their magnetic behaviors in GO sheets. Magnetic hysteresis loop reveals that the GO is ferromagnetic whereas photo-thermal moderately reduced graphene oxide (M-rGO) and heavily reduced graphene oxide (H-rGO) gradually become paramagnetic behavior at room temperature. Scanning transmission X-ray microscopy and corresponding X-ray absorption near-edge structure spectroscopy were utilized to investigate thoroughly the variation of the C 2p(π*) states that are bound with oxygen-containing and hydroxyl groups, as well as the C 2p(σ*)-derived states in flat and wrinkle regions to clarify the relationship between the spatially-resolved chemical states and the magnetism of GO, M-rGO and H-rGO. The results of X-ray magnetic circular dichroism further support the finding that C 2p(σ*)-derived states are the main origin of the magnetism of GO. Based on experimental results and first-principles calculations, the variation in magnetic behavior from GO to M-rGO and to H-rGO is interpreted, and the origin of ferromagnetism is identified as the C 2p(σ*)-derived states that involve defects/vacancies rather than the C 2p(π*) states that are bound with oxygen-containing and hydroxyl groups on GO sheets.
Collapse
Affiliation(s)
- Y F Wang
- Department of Physics, Tamkang University, Tamsui 251, Taiwan.,Institute for Molecular Science, Okazaki 444-8585, Japan
| | - Shashi B Singh
- Department of Physics, Tamkang University, Tamsui 251, Taiwan.,Department of Physics, Indian Institute of Science Education and Research, Bhopal 462066, India
| | - Mukta V Limaye
- Department of Physics, Tamkang University, Tamsui 251, Taiwan.,Department of Physics, Indian Institute of Science Education and Research, Bhopal 462066, India
| | - Y C Shao
- Department of Physics, Tamkang University, Tamsui 251, Taiwan
| | - S H Hsieh
- Department of Physics, Tamkang University, Tamsui 251, Taiwan
| | - L Y Chen
- Department of Physics, Tamkang University, Tamsui 251, Taiwan
| | - H C Hsueh
- Department of Physics, Tamkang University, Tamsui 251, Taiwan
| | - H T Wang
- Department of Physics, National Tsinghua University, Hsinchu 300, Taiwan
| | - J W Chiou
- Department of Applied Physics, National University of Kaohsiung, Kaohsiung 811, Taiwan
| | - Y C Yeh
- Department of Materials Science and Engineering, National Taiwan University, Taipei 106, Taiwan
| | - C W Chen
- Department of Materials Science and Engineering, National Taiwan University, Taipei 106, Taiwan
| | - C H Chen
- National Synchrotron Radiation Research Center, Hsinchu 300, Taiwan
| | - Sekhar C Ray
- Department of Physics, University of South Africa, Johannesburg 1710, South Africa
| | - J Wang
- Canadian Light Source Inc., University of Saskatchewan, Saskatoon S7N 2V3, Canada
| | - W F Pong
- Department of Physics, Tamkang University, Tamsui 251, Taiwan
| | - Y Takagi
- Institute for Molecular Science, Okazaki 444-8585, Japan
| | - T Ohigashi
- Institute for Molecular Science, Okazaki 444-8585, Japan
| | - T Yokoyama
- Institute for Molecular Science, Okazaki 444-8585, Japan
| | - N Kosugi
- Institute for Molecular Science, Okazaki 444-8585, Japan
| |
Collapse
|
49
|
Yue GQ, Zhang Y, Sun Y, Shen B, Dong F, Wang ZY, Zhang RJ, Zheng YX, Kramer MJ, Wang SY, Wang CZ, Ho KM, Chen LY. Local structure order in Pd78Cu6Si16 liquid. Sci Rep 2015; 5:8277. [PMID: 25652079 PMCID: PMC4317692 DOI: 10.1038/srep08277] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [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: 10/07/2014] [Accepted: 01/06/2015] [Indexed: 11/09/2022] Open
Abstract
The short-range order (SRO) in Pd78Cu6Si16 liquid was studied by high energy x-ray diffraction and ab initio molecular dynamics (MD) simulations. The calculated pair correlation functions at different temperatures agree well with the experimental results. The partial pair correlation functions from ab intio MD simulations indicate that Si atoms prefer to be uniformly distributed while Cu atoms tend to aggregate. By performing structure analysis using Honeycutt-Andersen index, Voronoi tessellation, and atomic cluster alignment method, we show that the icosahedron and face-centered cubic SRO increase upon cooling. The dominant SRO is the Pd-centered Pd9Si2 motif, namely the structure of which motif is similar to the structure of Pd-centered clusters in the Pd9Si2 crystal. The study further confirms the existence of trigonal prism capped with three half-octahedra that is reported as a structural unit in Pd-based amorphous alloys. The majority of Cu-centered clusters are icosahedra, suggesting that the presence of Cu is benefit to promote the glass forming ability.
Collapse
Affiliation(s)
- G Q Yue
- 1] Shanghai Ultra-Precision Optical Manufacturing Engineering Center and Department of Optical Science and Engineering, Fudan University, Shanghai, 200433, China [2] Ames Laboratory, U. S. Department of Energy and Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA
| | - Y Zhang
- Ames Laboratory, U. S. Department of Energy and Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA
| | - Y Sun
- Ames Laboratory, U. S. Department of Energy and Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA
| | - B Shen
- Shanghai Ultra-Precision Optical Manufacturing Engineering Center and Department of Optical Science and Engineering, Fudan University, Shanghai, 200433, China
| | - F Dong
- Shanghai Ultra-Precision Optical Manufacturing Engineering Center and Department of Optical Science and Engineering, Fudan University, Shanghai, 200433, China
| | - Z Y Wang
- Shanghai Ultra-Precision Optical Manufacturing Engineering Center and Department of Optical Science and Engineering, Fudan University, Shanghai, 200433, China
| | - R J Zhang
- Shanghai Ultra-Precision Optical Manufacturing Engineering Center and Department of Optical Science and Engineering, Fudan University, Shanghai, 200433, China
| | - Y X Zheng
- Shanghai Ultra-Precision Optical Manufacturing Engineering Center and Department of Optical Science and Engineering, Fudan University, Shanghai, 200433, China
| | - M J Kramer
- Ames Laboratory, U. S. Department of Energy and Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA
| | - S Y Wang
- 1] Shanghai Ultra-Precision Optical Manufacturing Engineering Center and Department of Optical Science and Engineering, Fudan University, Shanghai, 200433, China [2] Ames Laboratory, U. S. Department of Energy and Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA [3] Key Laboratory for Information Science of Electromagnetic Waves (MoE), Shanghai 200433, China
| | - C Z Wang
- Ames Laboratory, U. S. Department of Energy and Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA
| | - K M Ho
- Ames Laboratory, U. S. Department of Energy and Department of Physics and Astronomy, Iowa State University, Ames, Iowa 50011, USA
| | - L Y Chen
- Shanghai Ultra-Precision Optical Manufacturing Engineering Center and Department of Optical Science and Engineering, Fudan University, Shanghai, 200433, China
| |
Collapse
|
50
|
Han SL, Wan SL, Li QT, Xu DT, Zang HM, Chen NJ, Chen LY, Zhang WP, Luan C, Yang F, Xu ZW. Is vertebroplasty a risk factor for subsequent vertebral fracture, meta-analysis of published evidence? Osteoporos Int 2015; 26:113-22. [PMID: 25149856 DOI: 10.1007/s00198-014-2848-5] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/07/2013] [Accepted: 08/10/2014] [Indexed: 10/24/2022]
Abstract
UNLABELLED In our paper, we systemically retrieved the eligible study evaluating whether increased incidence of subsequent vertebral fracture is associated with vertebroplasty. Main effect sizes were vertebral fracture rates reported in terms of hazard ratio (HR) for time-to-event data or relative risk (RR) for dichotomous outcome. Our results do not support the hypothesis that vertebroplasty contributes to increased risk of subsequent vertebral fracture, neither adjacent nor total vertebral fracture. INTRODUCTION Vertebroplasty has been implicated in significant changes in vertebral strength, vertebral shape, and consequently increased risk for subsequent vertebral fracture, especially the adjacent level. Here, we further tested the hypothesis whether new-onset vertebral fracture is a natural result of osteoporosis or consequence of cement augmentation. METHODS Relevant literatures were retrieved using PubMed, Web of Knowledge, and Cochrane Central Register of Controlled Trials (CENTRAL), supplemented by a hand-search of the reference lists of selected articles. Eligible studies assessed whether increased morbidity of subsequent vertebral fracture is associated with vertebroplasty. Main effect sizes were vertebral fracture rates reported in terms of hazard ratio (HR) for time-to-event data or relative risk (RR) for dichotomous outcome. Random-effects model was used to account for clinical or methodological heterogeneity across studies. RESULTS Thirteen studies with a number of 2,551 individuals (1,631 in vertebroplasty group and 920 in control group) were suitable for this meta-analysis. In trials that reported adjacent vertebral fracture as time-to-event data (two trials, n = 328), we found a similar incidence of vertebral fracture in percutaneous vertebroplasty (PVP) group compared to conservative therapy (HR 0.60, 95% confidence interval 0.29 to 1.26; P = 0.18). In trials that reported overall vertebral fracture as time-to-event data (three trials, n = 704), vertebroplasty was associated with a slightly increased but non-significant risk for vertebral fracture (HR 1.14, 95% confidence interval 0.65 to 2.00; P = 0.65). The outcome was further confirmed in the secondary meta-analysis of studies that reported vertebral fracture as dichotomous data. Subgroup analysis according to study design revealed no difference either. CONCLUSIONS Our results do not support the hypothesis that vertebroplasty contributes to increased risk of subsequent vertebral fracture, neither adjacent nor total vertebral fracture. However, adequately designed randomized controlled trials are warranted to confirm the present findings.
Collapse
Affiliation(s)
- S L Han
- Department of Orthopaedics, Sir Run Run Shaw Hospital, School of Medicine, Zhejiang University, 3 East Qingchun Road, Hangzhou, Zhejiang, 310016, China
| | | | | | | | | | | | | | | | | | | | | |
Collapse
|