1
|
Wang FY, Liang ZY, Yang YQ, Wang LW, Chen RC. [Annual review of progress in research on chronic obstructive pulmonary disease(2022-2023)]. Zhonghua Jie He He Hu Xi Za Zhi 2024; 47:54-59. [PMID: 38062696 DOI: 10.3760/cma.j.cn112147-20231019-00248] [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: 12/30/2023]
Abstract
Chronic obstructive pulmonary disease (COPD) is the most common chronic airway disease, with a high prevalence and high disease burden. Clinical questions have driven advances in clinical research that continue to deepen our understanding of COPD. At the same time, new perspectives, evidence, and strategies have emerged. Studies since 2022 have increased knowledge of the impact of risk factors, such as low-to-moderate income and ambient ozone, on the prevalence of COPD. The effect of preterm birth on obstructive lung function deficits and COPD in the sixth decade of life was investigated for the first time. Screening studies for COPD in developed and low- and middle-income countries suggest the importance of tailoring screening strategies to local conditions. Developments in artificial intelligence provide a general framework for using machine-learning-based methods and medical record-based labels to improve disease prediction. New perspectives on endotypes/phenotypes and prognostic assessment of COPD were provided by lifetime spirometry patterns of obstruction and limitation, sensitisation to recombinant Aspergillus fumigatus allergens, airway-occluding mucus plugs and exacerbation history in COPD group A and B patients. Clinical trials focusing on inflammatory mediators, comorbidity treatment, non-pharmacological treatments, and environmental interventions shed light on some crucial and long-debated issues. Further research is needed for individualised diagnosis and treatment of COPD.
Collapse
Affiliation(s)
- F Y Wang
- National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
| | - Z Y Liang
- National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
| | - Y Q Yang
- National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
| | - L W Wang
- Shenzhen Institute of Respiratory Diseases, Shenzhen People's Hospital, Shenzhen 518020, China
| | - R C Chen
- National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Shenzhen Institute of Respiratory Diseases, Shenzhen People's Hospital, Shenzhen 518020, China
| |
Collapse
|
2
|
Li HP, Liu C, Luo H, Wang FY, Su HQ, Wang S, Wu Q. Design and experiments of a compact electrostatic low energy beam transport with a double Einzel-lens for a transportable neutron source. Rev Sci Instrum 2023; 94:123301. [PMID: 38038637 DOI: 10.1063/5.0160376] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/01/2023] [Accepted: 11/10/2023] [Indexed: 12/02/2023]
Abstract
A transportable, compact, accelerator-based neutron source is under development at Xian Jiaotong University. An electrostatic low energy beam transport (LEBT) structure with a double Einzel-lens setup was adopted due to its short length and low power consumption. It can transport a pulsed proton beam to the radio frequency quadrupole with a required beam current of 15 mA and an energy of 30 keV. We performed detailed structure optimization and beam tracking to achieve beam matching and small emittance growth. In addition, the fast chopper, beam steering, and diagnostic devices are integrated into the LEBT. The fabrication and assembly of the proton injector have been completed, and beam commissioning was carried out to measure the beam current and Twiss parameters. The design strategy, beam simulation, and experimental results are presented and discussed in this paper.
Collapse
Affiliation(s)
- H P Li
- School of Nuclear Science and Technology, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China
- XJTU-Huzhou Neutron Science Laboratory, Science Valley Medium-sized Building No. 1, Huzhou 313000, Zhejiang, China
| | - C Liu
- School of Nuclear Science and Technology, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China
- XJTU-Huzhou Neutron Science Laboratory, Science Valley Medium-sized Building No. 1, Huzhou 313000, Zhejiang, China
| | - H Luo
- School of Nuclear Science and Technology, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China
| | - F Y Wang
- School of Nuclear Science and Technology, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China
- XJTU-Huzhou Neutron Science Laboratory, Science Valley Medium-sized Building No. 1, Huzhou 313000, Zhejiang, China
| | - H Q Su
- School of Nuclear Science and Technology, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China
- XJTU-Huzhou Neutron Science Laboratory, Science Valley Medium-sized Building No. 1, Huzhou 313000, Zhejiang, China
| | - S Wang
- School of Nuclear Science and Technology, School of Energy and Power Engineering, Xi'an Jiaotong University, Xi'an 710049, Shaanxi, China
- XJTU-Huzhou Neutron Science Laboratory, Science Valley Medium-sized Building No. 1, Huzhou 313000, Zhejiang, China
| | - Q Wu
- Institute of Modern Physics (IMP), Chinese Academy of Sciences, Lanzhou 730000, Gansu, China
| |
Collapse
|
3
|
Tang HL, Jiang J, Yu WN, Zhao LL, Fan Q, Wang FY, Pan XH. [A clustered epidemic investigation of non-marital non-commercial heterosexual contact of HIV in Zhejiang Province]. Zhonghua Liu Xing Bing Xue Za Zhi 2023; 44:1270-1275. [PMID: 37661620 DOI: 10.3760/cma.j.cn112338-20230203-00056] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 09/05/2023]
Abstract
Objective: To identify the transmission relationship between HIV infection cases the non-marital non-commercial heterosexual contact in Zhejiang Province. Methods: When HIV positive was informed during January 2020 to January 2022, the staff conducted an epidemiological investigation to collect cases information on sociodemographic characteristics, mobility information, past HIV testing history, high-risk sexual behaviors, sexual partners, and etcetera. At the same time, 6-8 ml of blood from the new diagnosis of people infected with HIV before antiviral treatment was collected to separate the bleeding plasma. pol gene was amplified by nucleic acid extraction and PCR, sequenced by Sequencer 5.0 software, and Cytoscape 3.6.0 software was used to draw HIV molecular transmission network. Results: From January 2020 to January 2022, 88 HIV infected individuals were found in Pujiang County, of which 74 were transmitted through heterosexual transmission, of which 31 were infected through non-marital non-commercial heterosexual contact. Preliminary case studies have found that three female cases have engaged in unprotected non-marital non-commercial heterosexual contact with one male case. Among the 4 infected individuals, 2 of their spouses tested positive for HIV antibodies. Molecular transmission network monitoring was carried out on 65 newly diagnosed cases of heterosexual transmission with acquired sequences, forming 9 transmission clusters. The largest cluster contained 10 cases. A total of 11 HIV-infected individuals were involved in this HIV cluster epidemic. They were 3 males and 8 females, all over 50 years old and were farmers or rural housewives. They were traced to 7 sexual partners (6 negatives of HIV, 1 undetected). Among the 18 respondents' sexual social network relationships, there were 6 couples, 8 permanent partners, and 3 temporary partners. Among 11 HIV infected individuals, there were 9 cases of non-marital non-commercial heterosexual transmission and 2 cases of intramarital transmission. The epidemiological association between 7 non-married non-commercial heterosexual partners and case 2 (56-year-old male farmer), 3 cases confirmed by epidemiological investigation and molecular transmission cluster results, 3 cases confirmed by molecular transmission cluster and epidemiological investigation results, and 1 case confirmed by epidemiological investigation results. Conclusions: The transmission mode of this cluster epidemic was to spread HIV through heterosexual sex with a male case as the core, then cause the transmission within marriage and between fixed sexual partners. The combination of epidemiological investigation and molecular transmission network traceability survey supports the conclusion of this study.
Collapse
Affiliation(s)
- H L Tang
- Jinhua Center for Disease Control and Prevention, Jinhua 321002, China Zhejiang Association of STD/AIDS Prevention and Control, Hangzhou 310051, China
| | - J Jiang
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China
| | - W N Yu
- Pujiang County Center for Disease Control and Prevention of Zhejiang Province, Pujiang 322200, China
| | - L L Zhao
- Pujiang County Center for Disease Control and Prevention of Zhejiang Province, Pujiang 322200, China
| | - Q Fan
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China
| | - F Y Wang
- Jinhua Center for Disease Control and Prevention, Jinhua 321002, China Zhejiang Association of STD/AIDS Prevention and Control, Hangzhou 310051, China
| | - X H Pan
- Zhejiang Association of STD/AIDS Prevention and Control, Hangzhou 310051, China Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China
| |
Collapse
|
4
|
Liu P, Zhang C, Xue XM, Zhou HW, Shen WD, Yang SM, Wang FY. [Acoustic startle response and its application in animal models]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2023; 58:287-291. [PMID: 36878514 DOI: 10.3760/cma.j.cn115330-20230110-00014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 03/08/2023]
Affiliation(s)
- P Liu
- College of Otolaryngology Head and Neck Surgery, Chinese PLA General Hospital, National Clinical Research Center for Otolaryngologic Diseases, Ministry of Education, State Key Lab of Hearing Science, Beijing Key Lab of Hearing Impairment Prevention and Treatment, Beijing 100853, China
| | - C Zhang
- College of Otolaryngology Head and Neck Surgery, Chinese PLA General Hospital, National Clinical Research Center for Otolaryngologic Diseases, Ministry of Education, State Key Lab of Hearing Science, Beijing Key Lab of Hearing Impairment Prevention and Treatment, Beijing 100853, China
| | - X M Xue
- College of Otolaryngology Head and Neck Surgery, Chinese PLA General Hospital, National Clinical Research Center for Otolaryngologic Diseases, Ministry of Education, State Key Lab of Hearing Science, Beijing Key Lab of Hearing Impairment Prevention and Treatment, Beijing 100853, China
| | - H W Zhou
- College of Otolaryngology Head and Neck Surgery, Chinese PLA General Hospital, National Clinical Research Center for Otolaryngologic Diseases, Ministry of Education, State Key Lab of Hearing Science, Beijing Key Lab of Hearing Impairment Prevention and Treatment, Beijing 100853, China
| | - W D Shen
- College of Otolaryngology Head and Neck Surgery, Chinese PLA General Hospital, National Clinical Research Center for Otolaryngologic Diseases, Ministry of Education, State Key Lab of Hearing Science, Beijing Key Lab of Hearing Impairment Prevention and Treatment, Beijing 100853, China
| | - S M Yang
- College of Otolaryngology Head and Neck Surgery, Chinese PLA General Hospital, National Clinical Research Center for Otolaryngologic Diseases, Ministry of Education, State Key Lab of Hearing Science, Beijing Key Lab of Hearing Impairment Prevention and Treatment, Beijing 100853, China
| | - F Y Wang
- College of Otolaryngology Head and Neck Surgery, Chinese PLA General Hospital, National Clinical Research Center for Otolaryngologic Diseases, Ministry of Education, State Key Lab of Hearing Science, Beijing Key Lab of Hearing Impairment Prevention and Treatment, Beijing 100853, China
| |
Collapse
|
5
|
Wang FY, Tang CL, Liang ZY, Wu HK, Li SY. [A survey on the practice of bronchoscopy in county-level hospitals of China]. Zhonghua Jie He He Hu Xi Za Zhi 2023; 46:27-33. [PMID: 36617925 DOI: 10.3760/cma.j.cn112147-20220801-00639] [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: 01/10/2023]
Abstract
Objective: To investigate the bronchoscopy resource allocation and technology application in county-level hospitals in China. Methods: A cross-sectional survey was conducted. In 2021, 12 provinces were sampled from all provinces in China according to the regional Gross Domestic Product (GDP) and the number of counties, in which a total of 291 county-level hospitals were randomly enrolled. Two county-level hospitals which carried out bronchoscopy technology in each province were randomly sampled to investigate the status of bronchoscopy resources, technical application, decontamination and anesthesia by using questionnaires. Independent sample t test or two related sample nonparametric test were used for comparison between groups. Spearman correlation analysis was used to explore the correlation. Bilateral P<0.05 was considered statistically significant. Results: According to the sampling results, it was estimated that in the county-level hospitals, the proportion of those performing bronchoscopy was 11.4% (9.9%, 13.8%), which was significantly correlated with the population in the province (r=0.64, P=0.025) and the regional GDP (r=0.65, P=0.025).The 24 county-level hospitals interviewed were equipped with (1.6±1.0) bronchoscopes on average, and the number of hospitals with electronic bronchoscopes and fiberoptic bronchoscopes was 22 (91.7%) and 6 (25.0%), respectively. Six (25.0%) hospitals performed bronchoscopy every working day. Twelve (50.0%) hospitals had relatively permanent physicians and nurses. All operating doctors had received special training. There was a significant increase in the number of bronchoscopy cases per hospital in 2020 compared to 2019 [140(70, 335) vs. 100(29, 254), P=0.001]. All hospitals used standard cleaning and sterilization workbenches, cleaning agents and disinfectants. Surface anesthesia was available in 24 hospitals, and bronchoscopy techniques under sedation and analgesia were performed in 10 (41.7%) hospitals. Atropine was still used to prevent airway secretions in 2 (8.3%) hospitals,although not recommended by guidelines. Conclusions: There was a large gap between the current status of bronchoscopy technology in county-level hospitals and the standards of the National Health Commission, together with regional disparities. Bronchoscopist training in the standardization and the decontamination work met the requirements. In some hospitals, the use of complementary medicines was not standardized or the sedatives were not given routinely according to the guidelines. We should promote the popularization and standardization of bronchoscopy technology, and strengthen the allocation of related resources in China's county hospitals.
Collapse
Affiliation(s)
- F Y Wang
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Guangzhou Medical University, National Center for Respiratory Medicine, National Clinical Research Center for Respiratory Disease, State Key Laboratory of Respiratory Disease, Guangzhou Lnstitute of Respiratory Health, Guangzhou 510120, China
| | - C L Tang
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Guangzhou Medical University, National Center for Respiratory Medicine, National Clinical Research Center for Respiratory Disease, State Key Laboratory of Respiratory Disease, Guangzhou Lnstitute of Respiratory Health, Guangzhou 510120, China
| | - Z Y Liang
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Guangzhou Medical University, National Center for Respiratory Medicine, National Clinical Research Center for Respiratory Disease, State Key Laboratory of Respiratory Disease, Guangzhou Lnstitute of Respiratory Health, Guangzhou 510120, China
| | - H K Wu
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Guangzhou Medical University, National Center for Respiratory Medicine, National Clinical Research Center for Respiratory Disease, State Key Laboratory of Respiratory Disease, Guangzhou Lnstitute of Respiratory Health, Guangzhou 510120, China
| | - S Y Li
- Department of Respiratory and Critical Care Medicine, the First Affiliated Hospital of Guangzhou Medical University, National Center for Respiratory Medicine, National Clinical Research Center for Respiratory Disease, State Key Laboratory of Respiratory Disease, Guangzhou Lnstitute of Respiratory Health, Guangzhou 510120, China
| |
Collapse
|
6
|
Peng X, Zhu XH, Huang BQ, Zhao ZY, Zhang QJ, Zhu L, Wang FY, Diao MF, Hou ZH, Zhu YH. [Long-term evaluation and physical and mental effects of residual tinnitus following treatment of sudden hearing loss]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2023; 58:42-46. [PMID: 36603865 DOI: 10.3760/cma.j.cn115330-20220608-00340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
Objective: To clarify the long-term characteristics of tinnitus following treatment of sudden deafness and its long-term physical and mental effects on patients. Methods: A retrospective analysis was performed on 88 patients (46 males and 42 females; Age from 11 to 89 years) with sudden deafness treated in Department of Otoscope Surgery of Peoples's Libration Army General Hospital in Beijing from April 2020 to January 2021, and the occurrence of tinnitus and treatment effect of all patients were analyzed. Follow-up was conducted for patients with residual tinnitus after treatment for more than 1 year by the investigation and filling in the survey information collection form, Tinnitus Evaluation Questionnaire (TEQ) and Tinnitus Handicap Inventory (THI). Descriptive statistics and SPSS 22.0 software were used for statistical data analysis. Results: In this study, 93.2% (82/88) of patients with sudden deafness were accompanied by tinnitus at the onset, and the proportion of long-term tinnitus after treatment was 90.2% (74/82). After 1 year of treatment for sudden deafness, the improvement of tinnitus was significant in low-frequency sudden deafness compared with those of high-frequency, flat and total deafness sudden deafness (χ2 value was 6.801, 4.568 and 4.038, all P<0.05). In patients with residual tinnitus, 9 (12.2%) patients felt minimal loudness or even no loudness, 34 (46.0%) patients felt slight loudness, 28 (37.8%) patients felt tinnitus was relatively loud, and 3 (4.1%) patients felt tinnitus was loud or noisy. Nine (12.2%) patients's sleep was often affected, 41 (55.4%) patients's sleep was sometimes affected, 9 (12.2%) patients's sleep was rarely affected, 15 (20.3%) patients's sleep was almost not affected. Twenty-eight (37.8%) patients basically completely adapted to tinnitus and 46 (62.2%) patients did not completely adapted to residual tinnitus. Eight (10.8%) patients had no impact on life, 39 (52.7%) patients had slight impact, 22 (29.7%) patients had moderate impact, and the other 5 (6.8%) patients had greater impact. According to tinnitus evaluation questionnaire(TEQ), there were 12 cases (16.2%) of grade Ⅰ, 26 cases (35.1%) of grade Ⅱ, 28 cases (37.8%) of grade Ⅲ, 7 cases (9.5%) of grade Ⅳ and 1 case (1.4%) of grade Ⅴ. According to tinnitus handicap inventory(THI), tinnitus disability was classified into grade Ⅰ, 22 cases (29.7%), grade Ⅱ, 14 cases (18.9%), Grade Ⅲ, 27 cases (36.5%) and grade Ⅳ, 11 cases (14.9%). Conclusion: The rate of residual tinnitus following treatment of sudden deafness is high. Some of the patients can completely adapt residual tinnitus after one year, but some of them will be affected when sleep, work and study. Residual tinnitus can lead to tinnitus disability in different degrees.
Collapse
Affiliation(s)
- X Peng
- Department of Otolaryngology Head and Neck Surgery, People's Libration Army General Hospital, Beijing 100142, China Department of Otolaryngology Head and Neck Surgery, Hainan Hospital of People's Libration Army General Hospital, Sanya 572013, China
| | - X H Zhu
- Laboratory Department of Beijing Friendship Hospital Affiliated to Capital Medical University, Beijing 100050, China
| | - B Q Huang
- Department of Otolaryngology Head and Neck Surgery, People's Libration Army General Hospital, Beijing 100142, China Department of Otolaryngology Head and Neck Surgery, Hainan Hospital of People's Libration Army General Hospital, Sanya 572013, China
| | - Z Y Zhao
- Department of Otolaryngology Head and Neck Surgery, People's Libration Army General Hospital, Beijing 100142, China
| | - Q J Zhang
- Department of Otolaryngology Head and Neck Surgery, People's Libration Army General Hospital, Beijing 100142, China
| | - L Zhu
- Department of Otolaryngology Head and Neck Surgery, People's Libration Army General Hospital, Beijing 100142, China
| | - F Y Wang
- Department of Otolaryngology Head and Neck Surgery, People's Libration Army General Hospital, Beijing 100142, China
| | - M F Diao
- Department of Otolaryngology Head and Neck Surgery, People's Libration Army General Hospital, Beijing 100142, China
| | - Z H Hou
- Department of Otolaryngology Head and Neck Surgery, People's Libration Army General Hospital, Beijing 100142, China
| | - Y H Zhu
- Department of Otolaryngology Head and Neck Surgery, People's Libration Army General Hospital, Beijing 100142, China
| |
Collapse
|
7
|
Ma X, Wang FY, Yu LS, Wang Q, Jin X. [From guideline to clinical practice:discussion of guideline for diagnosis and treatment of sudden deafness (2015)]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2022; 57:1248-1253. [PMID: 36319134 DOI: 10.3760/cma.j.cn115330-20220615-00353] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Affiliation(s)
- X Ma
- Department of Otorhinolaryngology, Peking University People's Hospital, Beijing 100044, China
| | - F Y Wang
- College of Otolaryngology Head and Neck Surgery, Chinese PLA General Hospital, Beijing 100037, China
| | - L S Yu
- Department of Otorhinolaryngology, Peking University People's Hospital, Beijing 100044, China
| | - Qiuju Wang
- College of Otolaryngology Head and Neck Surgery, Chinese PLA General Hospital, Beijing 100037, China
| | - Xin Jin
- Editorial Office of Chinese Journal of Otorhinolaryngology Head and Neck Surgery, Chinese Medical Association, Beijing 100052, China
| |
Collapse
|
8
|
Wang FY, Zhang GQ, Dai ZG, Cheng KS. Repeating fast radio burst 20201124A originates from a magnetar/Be star binary. Nat Commun 2022; 13:4382. [PMID: 36130932 PMCID: PMC9492772 DOI: 10.1038/s41467-022-31923-y] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/15/2022] [Accepted: 07/05/2022] [Indexed: 11/21/2022] Open
Abstract
Fast radio bursts (FRBs) are cosmic sources emitting millisecond-duration radio bursts. Although several hundreds FRBs have been discovered, their physical nature and central engine remain unclear. The variations of Faraday rotation measure and dispersion measure, due to local environment, are crucial clues to understanding their physical nature. The recent observations on the rotation measure of FRB 20201124A show a significant variation on a day time scale. Intriguingly, the oscillation of rotation measure supports that the local contribution can change sign, which indicates the magnetic field reversal along the line of sight. Here we present a physical model that explains observed characteristics of FRB 20201124A and proposes that repeating signal comes from a binary system containing a magnetar and a Be star with a decretion disk. When the magnetar approaches the periastron, the propagation of radio waves through the disk of the Be star naturally leads to the observed varying rotation measure, depolarization, large scattering timescale, and Faraday conversion. This study will prompt to search for FRB signals from Be/X-ray binaries. Fast radio bursts (FRBs) are bright millisecond or shorter duration transient events. Here, the authors propose that FRB 20201124A comes from a binary system of a magnetar and a Be star with a decretion disk.
Collapse
Affiliation(s)
- F Y Wang
- School of Astronomy and Space Science, Nanjing University, Nanjing, 210093, China. .,Key Laboratory of Modern Astronomy and Astrophysics (Nanjing University), Ministry of Education, Nanjing, China.
| | - G Q Zhang
- School of Astronomy and Space Science, Nanjing University, Nanjing, 210093, China
| | - Z G Dai
- School of Astronomy and Space Science, Nanjing University, Nanjing, 210093, China.,Department of Astronomy, University of Science and Technology of China, Hefei, 230026, China
| | - K S Cheng
- Department of Physics, The University of Hong Kong, Pokfulam Road, Hong Kong, China
| |
Collapse
|
9
|
Xue XM, Zhang C, Liu P, Zhou HW, Shen WD, Yang SM, Wang FY. [Research progress of ion channels related to subjective tinnitus]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2022; 57:763-768. [PMID: 35725326 DOI: 10.3760/cma.j.cn115330-20211025-00682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/15/2023]
Affiliation(s)
- X M Xue
- Medical School of Chinese People's Liberation Army, Beijing 100853, China; College of Otolaryngology Head and Neck Surgery, Chinese People's Liberation Army General Hospital, Beijing 100853, China; National Clinical Research Center for Otolaryngologic Diseases, Beijing 100853, China; Ministry of Education, State Key Lab of Hearing Science, Beijing 100853, China; Beijing Key Lab of Hearing Impairment Prevention and Treatment, Beijing 100853, China
| | - C Zhang
- Medical School of Chinese People's Liberation Army, Beijing 100853, China; College of Otolaryngology Head and Neck Surgery, Chinese People's Liberation Army General Hospital, Beijing 100853, China; National Clinical Research Center for Otolaryngologic Diseases, Beijing 100853, China; Ministry of Education, State Key Lab of Hearing Science, Beijing 100853, China; Beijing Key Lab of Hearing Impairment Prevention and Treatment, Beijing 100853, China
| | - P Liu
- Medical School of Chinese People's Liberation Army, Beijing 100853, China; College of Otolaryngology Head and Neck Surgery, Chinese People's Liberation Army General Hospital, Beijing 100853, China; National Clinical Research Center for Otolaryngologic Diseases, Beijing 100853, China; Ministry of Education, State Key Lab of Hearing Science, Beijing 100853, China; Beijing Key Lab of Hearing Impairment Prevention and Treatment, Beijing 100853, China
| | - H W Zhou
- Medical School of Chinese People's Liberation Army, Beijing 100853, China; College of Otolaryngology Head and Neck Surgery, Chinese People's Liberation Army General Hospital, Beijing 100853, China; National Clinical Research Center for Otolaryngologic Diseases, Beijing 100853, China; Ministry of Education, State Key Lab of Hearing Science, Beijing 100853, China; Beijing Key Lab of Hearing Impairment Prevention and Treatment, Beijing 100853, China
| | - W D Shen
- Medical School of Chinese People's Liberation Army, Beijing 100853, China; College of Otolaryngology Head and Neck Surgery, Chinese People's Liberation Army General Hospital, Beijing 100853, China; National Clinical Research Center for Otolaryngologic Diseases, Beijing 100853, China; Ministry of Education, State Key Lab of Hearing Science, Beijing 100853, China; Beijing Key Lab of Hearing Impairment Prevention and Treatment, Beijing 100853, China
| | - S M Yang
- Medical School of Chinese People's Liberation Army, Beijing 100853, China; College of Otolaryngology Head and Neck Surgery, Chinese People's Liberation Army General Hospital, Beijing 100853, China; National Clinical Research Center for Otolaryngologic Diseases, Beijing 100853, China; Ministry of Education, State Key Lab of Hearing Science, Beijing 100853, China; Beijing Key Lab of Hearing Impairment Prevention and Treatment, Beijing 100853, China
| | - F Y Wang
- Medical School of Chinese People's Liberation Army, Beijing 100853, China; College of Otolaryngology Head and Neck Surgery, Chinese People's Liberation Army General Hospital, Beijing 100853, China; National Clinical Research Center for Otolaryngologic Diseases, Beijing 100853, China; Ministry of Education, State Key Lab of Hearing Science, Beijing 100853, China; Beijing Key Lab of Hearing Impairment Prevention and Treatment, Beijing 100853, China
| |
Collapse
|
10
|
Li D, Wang P, Zhu WW, Zhang B, Zhang XX, Duan R, Zhang YK, Feng Y, Tang NY, Chatterjee S, Cordes JM, Cruces M, Dai S, Gajjar V, Hobbs G, Jin C, Kramer M, Lorimer DR, Miao CC, Niu CH, Niu JR, Pan ZC, Qian L, Spitler L, Werthimer D, Zhang GQ, Wang FY, Xie XY, Yue YL, Zhang L, Zhi QJ, Zhu Y. Author Correction: A bimodal burst energy distribution of a repeating fast radio burst source. Nature 2021; 601:E1. [PMID: 34912125 DOI: 10.1038/s41586-021-04178-8] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Affiliation(s)
- D Li
- CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing, China. .,University of Chinese Academy of Sciences, Beijing, China.
| | - P Wang
- CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing, China
| | - W W Zhu
- CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing, China
| | - B Zhang
- Department of Physics and Astronomy, University of Nevada, Las Vegas, Las Vegas, NV, USA.
| | - X X Zhang
- CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing, China
| | - R Duan
- CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing, China
| | - Y K Zhang
- CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Y Feng
- CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China.,CSIRO Astronomy and Space Science, Epping, New South Wales, Australia
| | - N Y Tang
- CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing, China.,Department of Physics, Anhui Normal University, Wuhu, China
| | - S Chatterjee
- Cornell Center for Astrophysics and Planetary Science and Department of Astronomy, Cornell University, Ithaca, NY, USA
| | - J M Cordes
- Cornell Center for Astrophysics and Planetary Science and Department of Astronomy, Cornell University, Ithaca, NY, USA
| | - M Cruces
- Max-Planck-Institut für Radioastronomie, Bonn, Germany
| | - S Dai
- CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing, China.,CSIRO Astronomy and Space Science, Epping, New South Wales, Australia.,Western Sydney University, Penrith, New South Wales, Australia
| | - V Gajjar
- Department of Astronomy, University of California Berkeley, Berkeley, CA, USA
| | - G Hobbs
- CSIRO Astronomy and Space Science, Epping, New South Wales, Australia
| | - C Jin
- CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing, China
| | - M Kramer
- Max-Planck-Institut für Radioastronomie, Bonn, Germany
| | - D R Lorimer
- Department of Physics and Astronomy, West Virginia University, Morgantown, WV, USA.,Center for Gravitational Waves and Cosmology, West Virginia University, Morgantown, WV, USA
| | - C C Miao
- CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
| | - C H Niu
- CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing, China
| | - J R Niu
- CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Z C Pan
- CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing, China
| | - L Qian
- CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing, China
| | - L Spitler
- Max-Planck-Institut für Radioastronomie, Bonn, Germany
| | - D Werthimer
- Department of Astronomy, University of California Berkeley, Berkeley, CA, USA
| | - G Q Zhang
- School of Astronomy and Space Science, Nanjing University, Nanjing, China
| | - F Y Wang
- School of Astronomy and Space Science, Nanjing University, Nanjing, China.,Key Laboratory of Modern Astronomy and Astrophysics (Nanjing University), Ministry of Education, Nanjing, China
| | - X Y Xie
- Guizhou Normal University, Guiyang, China
| | - Y L Yue
- CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing, China
| | - L Zhang
- CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing, China.,School of Physics and Technology, Wuhan University, Wuhan, China
| | - Q J Zhi
- Guizhou Normal University, Guiyang, China.,Guizhou Provincial Key Laboratory of Radio Astronomy and Data Processing, Guizhou Normal University, Guiyang, China
| | - Y Zhu
- CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing, China
| |
Collapse
|
11
|
Li D, Wang P, Zhu WW, Zhang B, Zhang XX, Duan R, Zhang YK, Feng Y, Tang NY, Chatterjee S, Cordes JM, Cruces M, Dai S, Gajjar V, Hobbs G, Jin C, Kramer M, Lorimer DR, Miao CC, Niu CH, Niu JR, Pan ZC, Qian L, Spitler L, Werthimer D, Zhang GQ, Wang FY, Xie XY, Yue YL, Zhang L, Zhi QJ, Zhu Y. A bimodal burst energy distribution of a repeating fast radio burst source. Nature 2021; 598:267-271. [PMID: 34645999 DOI: 10.1038/s41586-021-03878-5] [Citation(s) in RCA: 52] [Impact Index Per Article: 17.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/15/2020] [Accepted: 08/05/2021] [Indexed: 11/09/2022]
Abstract
The event rate, energy distribution and time-domain behaviour of repeating fast radio bursts (FRBs) contain essential information regarding their physical nature and central engine, which are as yet unknown1,2. As the first precisely localized source, FRB 121102 (refs. 3-5) has been extensively observed and shows non-Poisson clustering of bursts over time and a power-law energy distribution6-8. However, the extent of the energy distribution towards the fainter end was not known. Here we report the detection of 1,652 independent bursts with a peak burst rate of 122 h-1, in 59.5 hours spanning 47 days. A peak in the isotropic equivalent energy distribution is found to be approximately 4.8 × 1037 erg at 1.25 GHz, below which the detection of bursts is suppressed. The burst energy distribution is bimodal, and well characterized by a combination of a log-normal function and a generalized Cauchy function. The large number of bursts in hour-long spans allows sensitive periodicity searches between 1 ms and 1,000 s. The non-detection of any periodicity or quasi-periodicity poses challenges for models involving a single rotating compact object. The high burst rate also implies that FRBs must be generated with a high radiative efficiency, disfavouring emission mechanisms with large energy requirements or contrived triggering conditions.
Collapse
Affiliation(s)
- D Li
- CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing, China. .,University of Chinese Academy of Sciences, Beijing, China.
| | - P Wang
- CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing, China
| | - W W Zhu
- CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing, China
| | - B Zhang
- Department of Physics and Astronomy, University of Nevada, Las Vegas, Las Vegas, NV, USA.
| | - X X Zhang
- CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing, China
| | - R Duan
- CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing, China
| | - Y K Zhang
- CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Y Feng
- CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China.,CSIRO Astronomy and Space Science, Epping, New South Wales, Australia
| | - N Y Tang
- CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing, China.,Department of Physics, Anhui Normal University, Wuhu, China
| | - S Chatterjee
- Cornell Center for Astrophysics and Planetary Science and Department of Astronomy, Cornell University, Ithaca, NY, USA
| | - J M Cordes
- Cornell Center for Astrophysics and Planetary Science and Department of Astronomy, Cornell University, Ithaca, NY, USA
| | - M Cruces
- Max-Planck-Institut für Radioastronomie, Bonn, Germany
| | - S Dai
- CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing, China.,CSIRO Astronomy and Space Science, Epping, New South Wales, Australia.,Western Sydney University, Penrith, New South Wales, Australia
| | - V Gajjar
- Department of Astronomy, University of California Berkeley, Berkeley, CA, USA
| | - G Hobbs
- CSIRO Astronomy and Space Science, Epping, New South Wales, Australia
| | - C Jin
- CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing, China
| | - M Kramer
- Max-Planck-Institut für Radioastronomie, Bonn, Germany
| | - D R Lorimer
- Department of Physics and Astronomy, West Virginia University, Morgantown, WV, USA.,Center for Gravitational Waves and Cosmology, West Virginia University, Morgantown, WV, USA
| | - C C Miao
- CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
| | - C H Niu
- CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing, China
| | - J R Niu
- CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing, China.,University of Chinese Academy of Sciences, Beijing, China
| | - Z C Pan
- CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing, China
| | - L Qian
- CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing, China
| | - L Spitler
- Max-Planck-Institut für Radioastronomie, Bonn, Germany
| | - D Werthimer
- Department of Astronomy, University of California Berkeley, Berkeley, CA, USA
| | - G Q Zhang
- School of Astronomy and Space Science, Nanjing University, Nanjing, China
| | - F Y Wang
- School of Astronomy and Space Science, Nanjing University, Nanjing, China.,Key Laboratory of Modern Astronomy and Astrophysics (Nanjing University), Ministry of Education, Nanjing, China
| | - X Y Xie
- Guizhou Normal University, Guiyang, China
| | - Y L Yue
- CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing, China
| | - L Zhang
- CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing, China.,School of Physics and Technology, Wuhan University, Wuhan, China
| | - Q J Zhi
- Guizhou Normal University, Guiyang, China.,Guizhou Provincial Key Laboratory of Radio Astronomy and Data Processing, Guizhou Normal University, Guiyang, China
| | - Y Zhu
- CAS Key Laboratory of FAST, NAOC, Chinese Academy of Sciences, Beijing, China
| |
Collapse
|
12
|
Tao L, Liu YF, Zhang H, Li HZ, Zhao FP, Wang FY, Zhang RS, Di R, Chu MX. Genome-wide association study and inbreeding depression on body size traits in Qira black sheep (Ovis aries). Anim Genet 2021; 52:560-564. [PMID: 34096079 DOI: 10.1111/age.13099] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/19/2021] [Indexed: 12/24/2022]
Abstract
Qira black sheep is a famous indigenous sheep breed in China. The objectives of this study are to identify candidate genes related to body size, and to estimate the level of inbreeding depression on body size based on runs of homozygosity in Qira black sheep. Here, 188 adult Qira black sheep were genotyped with a high density (630 K) SNP chip and genome-wide association study for body weight and body size traits (including withers height, body slanting length, tail length, chest girth, chest width, and chest depth) were performed using an additive linear model. In consequence, 12 genome- and chromosome-wide significant SNPs and, accordingly, six candidate genes involved in muscle differentiation, metabolism and cell processes were identified. Of them, ZNF704 (zinc finger protein 704) was identified for body weight; AK2 (adenylate kinase 2) and PARK2 (parkin RBR E3 ubiquitin protein ligase) for tail length; MOCOS (molybdenum cofactor sulfurase) and ELP2 (elongator acetyltransferase complex subunit 2) for chest width; and MFAP1 (microfibril associated protein 1) for chest girth. Additionally, inbreeding depressions on body size were observed in the current herd. These results will provide insightful understandings into the genetic mechanisms of adult body size, and into the conservation and utilization of Qira black sheep.
Collapse
Affiliation(s)
- L Tao
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - Y F Liu
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, China.,College of Life Science and Food Engineering, Hebei University of Engineering, Handan, 056038, China
| | - H Zhang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, China.,College of Life Science and Food Engineering, Hebei University of Engineering, Handan, 056038, China
| | - H Z Li
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - F P Zhao
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - F Y Wang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - R S Zhang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - R Di
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - M X Chu
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| |
Collapse
|
13
|
Tao L, He XY, Wang FY, Pan LX, Wang XY, Gan SQ, Di R, Chu MX. Identification of genes associated with litter size combining genomic approaches in Luzhong mutton sheep. Anim Genet 2021; 52:545-549. [PMID: 34002409 DOI: 10.1111/age.13078] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 04/28/2021] [Indexed: 12/12/2022]
Abstract
Litter size is one of the most important reproductive traits of sheep, which has pronounced effects on the profit of husbandry enterprises and enthusiasm of breeders. Despite the importance of litter size, the underlying genetic mechanisms have not been entirely elucidated. Therefore, based on a high-density SNP chip, genome-wide comparative analysis was performed between two groups with different fecundity to reveal candidate genes linked to litter size via detection of homozygosity and selection signatures in Luzhong mutton sheep. Consequently, nine promising genes were identified from six runs of homozygosity islands, and functionally linked to reproduction (ACTL7A, ACTL7B, and ELP1), embryonic development (KLF5 and PIBF1), and cell cycle (DACH1, BORA, DIS3, and MZT1). A total of 128 genes were observed under selection, of which HECW1 and HTR1E were related to total lambs born, GABRG3, LRP1B, and MACROD2 to teat number, and AGBL1 to reproductive seasonality. Additionally, the presence of inbreeding depression implies the urgency of reasonable mating system to increase litter size in the present herd. These findings provide a comprehensive insight to the genetic makeup of litter size, and also contribute to implementation of marker-assisted selection in sheep.
Collapse
Affiliation(s)
- L Tao
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - X Y He
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - F Y Wang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - L X Pan
- Ji'nan Laiwu Yingtai Agriculture and Animal Husbandry Technology Co., Ltd, Ji'nan, Shandong, 271114, China
| | - X Y Wang
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - S Q Gan
- State Key Laboratory of Sheep Genetic Improvement and Healthy Production, Xinjiang Academy of Agricultural and Reclamation Sciences, Shihezi, Xinjiang, 832000, China
| | - R Di
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| | - M X Chu
- Key Laboratory of Animal Genetics, Breeding and Reproduction of Ministry of Agriculture and Rural Affairs, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing, 100193, China
| |
Collapse
|
14
|
Lin L, Zhang CF, Wang P, Gao H, Guan X, Han JL, Jiang JC, Jiang P, Lee KJ, Li D, Men YP, Miao CC, Niu CH, Niu JR, Sun C, Wang BJ, Wang ZL, Xu H, Xu JL, Xu JW, Yang YH, Yang YP, Yu W, Zhang B, Zhang BB, Zhou DJ, Zhu WW, Castro-Tirado AJ, Dai ZG, Ge MY, Hu YD, Li CK, Li Y, Li Z, Liang EW, Jia SM, Querel R, Shao L, Wang FY, Wang XG, Wu XF, Xiong SL, Xu RX, Yang YS, Zhang GQ, Zhang SN, Zheng TC, Zou JH. No pulsed radio emission during a bursting phase of a Galactic magnetar. Nature 2020; 587:63-65. [PMID: 33149293 DOI: 10.1038/s41586-020-2839-y] [Citation(s) in RCA: 66] [Impact Index Per Article: 16.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2020] [Accepted: 08/31/2020] [Indexed: 11/10/2022]
Abstract
Fast radio bursts (FRBs) are millisecond-duration radio transients of unknown physical origin observed at extragalactic distances1-3. It has long been speculated that magnetars are the engine powering repeating bursts from FRB sources4-13, but no convincing evidence has been collected so far14. Recently, the Galactic magnetar SRG 1935+2154 entered an active phase by emitting intense soft γ-ray bursts15. One FRB-like event with two peaks (FRB 200428) and a luminosity slightly lower than the faintest extragalactic FRBs was detected from the source, in association with a soft γ-ray/hard-X-ray flare18-21. Here we report an eight-hour targeted radio observational campaign comprising four sessions and assisted by multi-wavelength (optical and hard-X-ray) data. During the third session, 29 soft-γ-ray repeater (SGR) bursts were detected in γ-ray energies. Throughout the observing period, we detected no single dispersed pulsed emission coincident with the arrivals of SGR bursts, but unfortunately we were not observing when the FRB was detected. The non-detection places a fluence upper limit that is eight orders of magnitude lower than the fluence of FRB 200428. Our results suggest that FRB-SGR burst associations are rare. FRBs may be highly relativistic and geometrically beamed, or FRB-like events associated with SGR bursts may have narrow spectra and characteristic frequencies outside the observed band. It is also possible that the physical conditions required to achieve coherent radiation in SGR bursts are difficult to satisfy, and that only under extreme conditions could an FRB be associated with an SGR burst.
Collapse
Affiliation(s)
- L Lin
- Department of Astronomy, Beijing Normal University, Beijing, People's Republic of China
| | - C F Zhang
- Department of Astronomy, Peking University, Beijing, People's Republic of China.,National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - P Wang
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - H Gao
- Department of Astronomy, Beijing Normal University, Beijing, People's Republic of China
| | - X Guan
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - J L Han
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China.,University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - J C Jiang
- Department of Astronomy, Peking University, Beijing, People's Republic of China.,National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - P Jiang
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - K J Lee
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China. .,Kavli Institute for Astronomy and Astrophysics, Peking University, Beijing, People's Republic of China.
| | - D Li
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China. .,University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, People's Republic of China.
| | - Y P Men
- Department of Astronomy, Peking University, Beijing, People's Republic of China.,National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - C C Miao
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - C H Niu
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - J R Niu
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - C Sun
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - B J Wang
- Department of Astronomy, Peking University, Beijing, People's Republic of China.,National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Z L Wang
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - H Xu
- Department of Astronomy, Peking University, Beijing, People's Republic of China.,National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - J L Xu
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - J W Xu
- Department of Astronomy, Peking University, Beijing, People's Republic of China.,National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Y H Yang
- School of Astronomy and Space Science, Nanjing University, Nanjing, People's Republic of China
| | - Y P Yang
- South-Western Institute for Astronomy Research, Yunnan University, Kunming, People's Republic of China
| | - W Yu
- Shanghai Astronomical Observatory, Chinese Academy of Science, Shanghai, People's Republic of China
| | - B Zhang
- Department of Physics and Astronomy, University of Nevada, Las Vegas, NV, USA.
| | - B-B Zhang
- School of Astronomy and Space Science, Nanjing University, Nanjing, People's Republic of China.,Department of Physics and Astronomy, University of Nevada, Las Vegas, NV, USA.,Key Laboratory of Modern Astronomy and Astrophysics (Nanjing University), Ministry of Education, Nanjing, People's Republic of China
| | - D J Zhou
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China.,University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - W W Zhu
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - A J Castro-Tirado
- Instituto de Astrofísica de Andalucía (IAA-CSIC), Granada, Spain.,Departamento de Ingeniería de Sistemas y Automática, Escuela de Ingenierías, Universidad de Málaga, Málaga, Spain
| | - Z G Dai
- School of Astronomy and Space Science, Nanjing University, Nanjing, People's Republic of China.,Key Laboratory of Modern Astronomy and Astrophysics (Nanjing University), Ministry of Education, Nanjing, People's Republic of China
| | - M Y Ge
- Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Y D Hu
- Instituto de Astrofísica de Andalucía (IAA-CSIC), Granada, Spain.,Facultad de Ciencias, Universidad de Granada, Granada, Spain
| | - C K Li
- Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - Y Li
- University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, People's Republic of China.,Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing, People's Republic of China
| | - Z Li
- Department of Astronomy, Beijing Normal University, Beijing, People's Republic of China
| | - E W Liang
- Guangxi Key Laboratory for Relativistic Astrophysics, School of Physical Science and Technology, Guangxi University, Nanning, People's Republic of China
| | - S M Jia
- Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - R Querel
- National Institute of Water and Atmospheric Research (NIWA), Lauder, New Zealand
| | - L Shao
- College of Physics, Hebei Normal University, Shijiazhuang, People's Republic of China
| | - F Y Wang
- School of Astronomy and Space Science, Nanjing University, Nanjing, People's Republic of China.,Key Laboratory of Modern Astronomy and Astrophysics (Nanjing University), Ministry of Education, Nanjing, People's Republic of China
| | - X G Wang
- Guangxi Key Laboratory for Relativistic Astrophysics, School of Physical Science and Technology, Guangxi University, Nanning, People's Republic of China
| | - X F Wu
- Purple Mountain Observatory, Chinese Academy of Sciences, Nanjing, People's Republic of China
| | - S L Xiong
- Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - R X Xu
- Department of Astronomy, Peking University, Beijing, People's Republic of China.,Kavli Institute for Astronomy and Astrophysics, Peking University, Beijing, People's Republic of China
| | - Y-S Yang
- School of Astronomy and Space Science, Nanjing University, Nanjing, People's Republic of China
| | - G Q Zhang
- School of Astronomy and Space Science, Nanjing University, Nanjing, People's Republic of China
| | - S N Zhang
- National Astronomical Observatories, Chinese Academy of Sciences, Beijing, People's Republic of China.,University of Chinese Academy of Sciences, Chinese Academy of Sciences, Beijing, People's Republic of China.,Key Laboratory of Particle Astrophysics, Institute of High Energy Physics, Chinese Academy of Sciences, Beijing, People's Republic of China
| | - T C Zheng
- Guangxi Key Laboratory for Relativistic Astrophysics, School of Physical Science and Technology, Guangxi University, Nanning, People's Republic of China
| | - J-H Zou
- College of Physics, Hebei Normal University, Shijiazhuang, People's Republic of China
| |
Collapse
|
15
|
Cheng YB, Liu NG, Wang FY. Forensic Clinical Medicine Causality Identification of Human Body Injury Caused by Environmental Damage. Fa Yi Xue Za Zhi 2020; 36:474-477. [PMID: 33047527 DOI: 10.12116/j.issn.1004-5619.2020.04.007] [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] [Received: 05/18/2020] [Indexed: 06/11/2023]
Affiliation(s)
- Y B Cheng
- Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - N G Liu
- Shanghai Key Laboratory of Forensic Medicine, Key Laboratory of Forensic Science, Ministry of Justice, Shanghai Forensic Service Platform, Academy of Forensic Science, Shanghai 200063, China
| | - F Y Wang
- Department of Forensic Medicine, School of Basic Medical Sciences, Fudan University, Shanghai 200032, China
| |
Collapse
|
16
|
Wen SP, Wang BY, Xing LN, Lu X, Wang FY, Cheng ZY, Geng L, Wang ZZ, Niu ZY, Wang Y, Wang FX, Zhang XJ. [Chemotherapy followed by allo-hematopoietic stem cell transplantation for the treatment of blastic plasmacytoid dendritic cell neoplasm: two case reports and literatures review]. Zhonghua Xue Ye Xue Za Zhi 2020; 40:874-877. [PMID: 31775492 PMCID: PMC7364993 DOI: 10.3760/cma.j.issn.0253-2727.2019.10.017] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- S P Wen
- Department of Hematology, the Second Hospital of Hebei Medical Univeresity, Shijiazhuang 050000, China
| | - B Y Wang
- Department of Hematology, the Second Hospital of Hebei Medical Univeresity, Shijiazhuang 050000, China
| | - L N Xing
- Department of Hematology, the Second Hospital of Hebei Medical Univeresity, Shijiazhuang 050000, China
| | - X Lu
- Department of Hematology, the Xingtai People's Hospital Affiliated to Hebei Medical Univeresity, Xingtai 054000, China
| | - F Y Wang
- Department of Hematology, the First hospital of Baoding City, Baoding 071000, China
| | - Z Y Cheng
- Department of Hematology, the First hospital of Baoding City, Baoding 071000, China
| | - L Geng
- Department of Hematology, the Second Hospital of Hebei Medical Univeresity, Shijiazhuang 050000, China
| | - Z Z Wang
- Department of Hematology, the Second Hospital of Hebei Medical Univeresity, Shijiazhuang 050000, China
| | - Z Y Niu
- Department of Hematology, the Second Hospital of Hebei Medical Univeresity, Shijiazhuang 050000, China
| | - Y Wang
- Department of Hematology, the Second Hospital of Hebei Medical Univeresity, Shijiazhuang 050000, China
| | - F X Wang
- Department of Hematology, the Second Hospital of Hebei Medical Univeresity, Shijiazhuang 050000, China
| | - X J Zhang
- Department of Hematology, the Second Hospital of Hebei Medical Univeresity, Shijiazhuang 050000, China
| |
Collapse
|
17
|
Qiu C, Wang FY, Chen RC. [Advance the implementation of the Chronic Respiratory Diseases Prevention and Control Campaign in Healthy China Action 2019-2030]. Zhonghua Yi Xue Za Zhi 2019; 99:3761-3764. [PMID: 31874510 DOI: 10.3760/cma.j.issn.0376-2491.2019.48.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- C Qiu
- Shenzhen People's Hospital, Shenzhen Institute of Respiratory Disease, Shenzhen 518020, China
| | - F Y Wang
- National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, First Affiliated Hospital of Guangzhou Medical University, Guangzhou 510120, China
| | - R C Chen
- Shenzhen People's Hospital, Shenzhen Institute of Respiratory Disease, Shenzhen 518020, China
| |
Collapse
|
18
|
Wang FY, Wang LW, Yang YQ, Liang ZY, Chen RC, Qiu C. [Annual reveiew of progress in research on chronic obstructice pulmonary disease]. Zhonghua Jie He He Hu Xi Za Zhi 2019; 42:858-861. [PMID: 31694097 DOI: 10.3760/cma.j.issn.1001-0939.2019.11.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
|
19
|
Wang XY, Wang FY, Wei WX, Li XZ, Wu HY, Xie RR, Chen XL, Chen T, Sun H, Chen LQ. [Idiopathic infantile hypercalcemia]. Zhonghua Er Ke Za Zhi 2019; 57:377-379. [PMID: 31060133 DOI: 10.3760/cma.j.issn.0578-1310.2019.05.013] [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: 06/09/2023]
Affiliation(s)
- X Y Wang
- Department of Endocrinology, Genetics and Metabolism, Children's Hospital of Soochow University, Suzhou 215000, China
| | - F Y Wang
- Department of Endocrinology, Genetics and Metabolism, Children's Hospital of Soochow University, Suzhou 215000, China
| | - W X Wei
- Department of Cell Biology, School of Biology & Basic Medical Science, Soochow University, Suzhou 215000, China
| | - X Z Li
- Department of Nephrology, Children's Hospital of Soochow University, Suzhou 215000, China
| | - H Y Wu
- Department of Endocrinology, Genetics and Metabolism, Children's Hospital of Soochow University, Suzhou 215000, China
| | - R R Xie
- Department of Endocrinology, Genetics and Metabolism, Children's Hospital of Soochow University, Suzhou 215000, China
| | - X L Chen
- Department of Endocrinology, Genetics and Metabolism, Children's Hospital of Soochow University, Suzhou 215000, China
| | - T Chen
- Department of Endocrinology, Genetics and Metabolism, Children's Hospital of Soochow University, Suzhou 215000, China
| | - H Sun
- Department of Endocrinology, Genetics and Metabolism, Children's Hospital of Soochow University, Suzhou 215000, China
| | - L Q Chen
- Department of Endocrinology, Genetics and Metabolism, Children's Hospital of Soochow University, Suzhou 215000, China
| |
Collapse
|
20
|
Zhao YP, Ji YY, Wang FY, Wang SL, Lai GK, Wang T, Tang JM. [Value of fibrinogen to albumin ratio on predicting spontaneous recanalization of infarct-related artery in patients with acute ST-segment elevation myocardial infarction]. Zhonghua Xin Xue Guan Bing Za Zhi 2019; 47:123-128. [PMID: 30818940 DOI: 10.3760/cma.j.issn.0253-3758.2019.02.009] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the value of fibrinogen to albumin ratio (FAR) at admission on predicting spontaneous recanalization of infarct-related artery (IRA) in patients with acute ST-segment elevation myocardial infarction (STEMI). Methods: Clinical data from 255 acute STEMI patients ((61.1±11.2) years old, 189 males) who underwent emergency coronary angiography within 12 hours in our hospital from December 2015 to April 2018 were retrospectively analyzed. The acute STEMI patients were divided into non-spontaneous recanalization group (thrombolysis in myocardial infarction (TIMI) flow grade 0-1, 203 cases) and spontaneous recanalization group (TIMI flow grade 2-3, 52 cases). Multivariate logistic regression analysis was used to evaluate related factors of IRA spontaneous recanalization. The receiver operating characteristic (ROC) curve was used to evaluate the value of FAR in predicting spontaneous coronary recanalization. Results: There was no significant difference in age,gender, hypertension, diabetes, smoking,systolic blood pressure,diastolic blood pressure,heart rate, duration of chest pain, type of infarction, infarct-related artery, door-to-balloon time, and drug used before admission between non-spontaneous recanalization group and spontaneous recanalization group (all P>0.05). The FAR and high-sensitivity C-reactive protein levels were significantly lower in the spontaneous recanalization group than in the non-spontaneous recanalization group (8.20±1.85 vs. 11.02±2.75, P<0.001; (6.87±3.36) g/L vs. (8.51±3.72) g/L, P=0.004). Multivariate logistic regression analysis showed that FAR (OR=0.492, 95%CI 0.354-0.686, P<0.001), serum uric acid (OR=0.994, 95%CI 0.989-0.999, P=0.018) and high-sensitivity C-reactive protein (OR=0.774, 95%CI 0.614-0.975, P=0.030) were independent negative correlation with spontaneous recanalization of infarct-related artery in patients with acute STEMI. The ROC curve showed that the area under the curve of FAR predicting spontaneous recanalization of infarct-related artery in patients with acute STEMI was 0.807 (95%CI 0.630-0.758, P<0.001), and the diagnostic threshold was 9.26, the sensitivity was 76.9%, the specificity was 75.9%. Conclusion: The level of admission FAR has certain predictive value for spontaneous recanalization of infarct-related arteries in patients with acute STEMI.
Collapse
Affiliation(s)
- Y P Zhao
- Department of Cardiology, Second Affiliated Hospital of Zhengzhou University, Zhengzhou 450014, China
| | | | | | | | | | | | | |
Collapse
|
21
|
Sun H, Chen XL, Chen T, Wu HY, Xie RR, Wang FY, Wang XY, Chen LQ. [Clinical characteristics of thyroid hormone resistance syndrome in two cases with different subtypes]. Zhonghua Er Ke Za Zhi 2018; 55:953-956. [PMID: 29262478 DOI: 10.3760/cma.j.issn.0578-1310.2017.12.017] [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 analyze the clinical characteristics of children with two types of thyroid hormone resistance (RTH) syndrome, and to detect the variants of thyroid hormone receptor alpha(TRα) and TRβ gene in children. Method: Two children with RTH were reported in regard to clinical manifestation, laboratory examination and genetic variants. Some related reports in literature were reviewed. Result: Case 1 was a girl, 10 years old, with thyroid enlargement for several days and without thyrotoxicosis. Laboratory work-up revealed that free thyroxine (FT(4)) was 65.77 pmol/L (reference 12-22) , free triiodothyronine (FT(3)) was 15.36 pmol/L (reference 3.1-6.8) and thyroid stimulating hormone (TSH) level was normal. There was a likely pathogenic missense variant detected in TRβ gene and this patient was diagnosed with RTHβ. Case 2 was a boy, 3 years old, with classic features of hypothyroidism(growth retardation, developmental retardation, skeletal dysplasia) but had only borderline-abnormal thyroid hormone levels. Targeted sequencing showed a de novo heterozygous nonsense variant in TRα gene which is a pathogenic variant and this patient been diagnosed with RTHα. Conclusion: Thyroid enlargement is a common clinical manifestation of RTHβ, with laboratory work-up reveals elevated FT(4) and FT(3) levels but TSH level is normal. The clinical manifestations of RTHα are similar to those of hypothyroidism, but the thyroid hormone levels are almost normal. The gene sequence and the pathogenicity analysis for TRα and TRβ will help to make a definitive diagnosis.
Collapse
Affiliation(s)
- H Sun
- Department of Endocrinology, Genetics, and Metabolism, Children's Hospital Affiliated to Soochow University, Suzhou 215000, China
| | | | | | | | | | | | | | | |
Collapse
|
22
|
Liu JL, Zeng WN, Wang FY, Chen C, Gong XY, Yang H, Tan ZJ, Jia XL, Yang L. Effects of low-dose epinephrine on perioperative hemostasis and inflammatory reaction in major surgical operations: a randomized clinical trial. J Thromb Haemost 2018; 16:74-82. [PMID: 29108091 DOI: 10.1111/jth.13896] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2017] [Indexed: 12/18/2022]
Abstract
Essentials Blood loss and immune reaction are closely related to morbidity and recovery after surgery. We studied the effect of epinephrine plus tranexamic acid on blood loss and immune reaction. Epinephrine plus tranexamic acid reduced postoperative total blood loss and immune reaction. Epinephrine plus tranexamic acid did not increase the incidence of complications. SUMMARY Background Hemostasis, thrombosis and surgical stress-induced immune reactions are important for perioperative morbidity and recovery after major surgical operations. Objectives To evaluate the effects of combined administration of low-dose epinephrine (LDEPI) and tranexamic acid (TXA) on perioperative blood loss, thromboembolic complications and inflammatory responses in patients undergoing total hip arthroplasty (THA). Patients/Methods Patients scheduled for THA (n = 195) were randomized into three interventions: intravenous LDEPI plus TXA (group IV); topical diluted epinephrine plus TXA (group TP); and TXA alone as control (group CT). The primary outcome was perioperative blood loss on postoperative day (POD) 1. Secondary outcomes included perioperative blood loss on POD 3, intraoperative blood loss, volume of drainage, transfusion values, coagulation and fibrinolysis parameters, inflammatory cytokine levels, cases of thrombosis, intravenous fluid on the operation day, and length of hospital stay. Results The mean calculated amounts of total blood loss in groups IV, TP and CT were 631.2 mL, 760.5 mL, and 825.6 mL, respectively, on POD 1; treatment effects (differences) were 194.4 mL (95% confidence interval [CI] 146.7-242.0) and 65.0 mL (95% CI 17.4-112.7). Groups IV and TP had lower levels of proinflammatory cytokines (tumor necrosis factor-α and interleukin [IL]-1β) and higher levels of the anti-inflammatory cytokine IL-10, and showed faster development of coagulation and fibrinolysis (without change in peak levels), than group CT early postoperation. No differences were observed in transfusion, thromboembolic and other outcomes among the groups. Conclusion The combined administration of LDEPI and TXA was more effective in reducing perioperative blood loss and alleviating the inflammatory response than TXA alone, without increasing the incidence of thromboembolic and other complications.
Collapse
Affiliation(s)
- J L Liu
- Center for Joint Surgery, Southwest Hospital, Third Military Medical University, Chongqing, China
- Department of Orthopedics, Chongqing General Hospital, Chongqing, China
| | - W N Zeng
- Center for Joint Surgery, Southwest Hospital, Third Military Medical University, Chongqing, China
- Department of Orthopedic Surgery, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - F Y Wang
- Center for Joint Surgery, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - C Chen
- Center for Joint Surgery, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - X Y Gong
- Center for Joint Surgery, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - H Yang
- Center for Joint Surgery, Southwest Hospital, Third Military Medical University, Chongqing, China
| | - Z J Tan
- Department of Orthopedics, Chongqing General Hospital, Chongqing, China
| | - X L Jia
- Department of Orthopedics, Chongqing General Hospital, Chongqing, China
| | - L Yang
- Center for Joint Surgery, Southwest Hospital, Third Military Medical University, Chongqing, China
| |
Collapse
|
23
|
Kou CX, Zhang YY, Li GW, Li J, Kong QT, Chen J, Liu F, Zhang M, Wang FY, Jiang Y, Hao LY, Ren JA, Sang H. Mucocutaneous manifestations of inflammatory bowel disease in central China -a single-centre study. J Eur Acad Dermatol Venereol 2017; 32:e211-e212. [PMID: 29194792 DOI: 10.1111/jdv.14720] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/13/2023]
Affiliation(s)
- C X Kou
- Department of Dermatology, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Y Y Zhang
- Department of Dermatology, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - G W Li
- Department of Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - J Li
- Department of Dermatology, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Q T Kong
- Department of Dermatology, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - J Chen
- Department of Dermatology, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - F Liu
- Department of Dermatology, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - M Zhang
- Department of Dermatology, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - F Y Wang
- Department of Dermatology, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - Y Jiang
- Department of Dermatology, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - L Y Hao
- Department of Dermatology, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - J A Ren
- Department of Surgery, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| | - H Sang
- Department of Dermatology, Jinling Hospital, Medical School of Nanjing University, Nanjing, China
| |
Collapse
|
24
|
Wang FY, Yu H, Zou YC, Dai ZG, Cheng KS. A rapid cosmic-ray increase in BC 3372-3371 from ancient buried tree rings in China. Nat Commun 2017; 8:1487. [PMID: 29133840 PMCID: PMC5684315 DOI: 10.1038/s41467-017-01698-8] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/14/2017] [Accepted: 10/10/2017] [Indexed: 11/14/2022] Open
Abstract
Cosmic rays interact with the Earth's atmosphere to produce 14C, which can be absorbed by trees. Therefore, rapid increases of 14C in tree rings can be used to probe previous cosmic-ray events. By this method, three 14C rapidly increasing events have been found. Plausible causes of these events include large solar proton events, supernovae, or short gamma-ray bursts. However, due to the lack of measurements of 14C by year, the occurrence frequency of such 14C rapidly increasing events is poorly known. In addition, rapid increases may be hidden in the IntCal13 data with five-year resolution. Here we report the result of 14C measurements using an ancient buried tree during the period between BC 3388 and 3358. We found a rapid increase of about 9‰ in the 14C content from BC 3372 to BC 3371. We suggest that this event could originate from a large solar proton event.
Collapse
Affiliation(s)
- F Y Wang
- School of Astronomy and Space Science, Nanjing University, Nanjing, 210023, China.
- Key Laboratory of Modern Astronomy and Astrophysics (Nanjing University), Ministry of Education, Nanjing, 210023, China.
| | - H Yu
- School of Astronomy and Space Science, Nanjing University, Nanjing, 210023, China
| | - Y C Zou
- School of Physics, Huazhong University of Science and Technology, Wuhan, 430074, China.
| | - Z G Dai
- School of Astronomy and Space Science, Nanjing University, Nanjing, 210023, China
- Key Laboratory of Modern Astronomy and Astrophysics (Nanjing University), Ministry of Education, Nanjing, 210023, China
| | - K S Cheng
- Department of Physics, University of Hong Kong, Hong Kong, China
| |
Collapse
|
25
|
Wang FY, Zou C, Dong HK, Yang YC, Gao MW, Zhao R, Jin JL, Yang XJ. [Analysis of influencing factors of heart rate deceleration capacity in patients with dilated cardiomyopathy]. Zhonghua Xin Xue Guan Bing Za Zhi 2017; 45:753-757. [PMID: 29036972 DOI: 10.3760/cma.j.issn.0253-3758.2017.09.005] [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 investigate the determinants affecting the heart rate deceleration capacity (DC) in patients with dilated cardiomyopathy (DCM). Methods: One hundred patients with DCM (DCM group) and 202 healthy subjects (control group) were respectively enrolled. Echocardiography and 24 hours electrocardiogram were performed in all subjects. DC value was compared between the two groups. Multiple regression analysis was made to evaluate the related determinants of DC ((age, sex, echocardiographic parameters including the left atrial diameter (LAD) and left ventricular ejection fraction (LVEF)). Results: (1) DC value was significantly lower in DCM group than in control group( (4.40±2.03) ms vs. (7.30±1.81) ms, P<0.01), prevalence of DC value≤4.5 ms was significantly higher in DCM group than in control group (62% vs. 6%, P<0.01). (2) DC value in the DCM group decreased in proportion to increasing LAD dimension, DC value was (5.60±2.04) ms, (4.50±2.07) ms and (3.60±1.62) ms (P<0.05) in DCM patients with LAD≤40 mm, 40 mm<LAD≤50 mm and LAD>50 mm, respectively. (3) DC value in the DCM group was negatively related to the LAD (r=-0.366, P<0.01), positively related to the LVEF (r= 0.241, P<0.01), but not related with age and sex. Multiple factors regression analysis showed that increased LAD was related to the reduced DC values independtly. Conclusion: DC value of the patients in the DCM group is decreased, which indicate the decrease of the vagus nerve tension, and increased LAD is related to the reduced DC value independtly in DCM patients.
Collapse
Affiliation(s)
- F Y Wang
- Department of Cardiology, First Affiliated Hospital of Soochow University, Suzhou 215006, China
| | | | | | | | | | | | | | | |
Collapse
|
26
|
Wei ZJ, Wang FY, Guo MP, Duan ZZ, Zou NL, Liu P, Yan QG, Wen XT, Cao SJ, Huang Y. Dynamic changes of virus load in supernatant of primary CEK cell culture infected with different generations of avian infectious bronchitis virus strains Sczy3 as revealed by real-time reverse transcription-polymerase chain reaction. Genet Mol Res 2015; 14:6340-9. [PMID: 26125838 DOI: 10.4238/2015.june.11.9] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Infectious bronchitis virus (IBV) can multiply effectively in chick embryo kidney (CEK) cells after adapting to the chick embryo. To investigate the dynamic changes in IBV load in the supernatant of primary CEK cells, we developed an SYBR Green I-based real-time polymerase chain reaction assay to quantify nucleic copy numbers of the IBV-Sczy3 strain. The 20, 54, and 87th generations of CEK-adapted IBV-Sczy3 strains were used to infect CEK cells, and then nucleic copy numbers in the samples of supernatant collected at 12, 24, 36, 48, 60, and 72 h were detected. The results showed that the rapid growth period of the virus load of all the 3 generations was approximately 12-36 h post-infection; the peak of the virus load appeared at 36 h post-infection and then decreased gradually in the order of 20th > 54th > 87th for the 3 generations of CEK-adapted strains; the dynamic change curve of the IBV load in the supernatant of primary CEK cells showed a single peak. The results of this study provide a useful reference for CEK-adapted IBV field strains and the production of CEK-attenuated IBV vaccine.
Collapse
Affiliation(s)
- Z J Wei
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Ya'an, Sichuan, China
| | - F Y Wang
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Ya'an, Sichuan, China
| | - M P Guo
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Ya'an, Sichuan, China
| | - Z Z Duan
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Ya'an, Sichuan, China
| | - N L Zou
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Ya'an, Sichuan, China
| | - P Liu
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Ya'an, Sichuan, China
| | - Q G Yan
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Ya'an, Sichuan, China
| | - X T Wen
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Ya'an, Sichuan, China
| | - S J Cao
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Ya'an, Sichuan, China
| | - Y Huang
- Key Laboratory of Animal Disease and Human Health of Sichuan Province, College of Veterinary Medicine, Sichuan Agricultural University, Ya'an, Sichuan, China
| |
Collapse
|
27
|
Shih CK, Wang FY, Shieh CF, Huang JM, Lu IC, Wu LC, Lu DV. Soft catheters reduce the risk of intravascular cannulation during epidural block--a retrospective analysis of 1,117 cases in a medical center. Kaohsiung J Med Sci 2012; 28:373-6. [PMID: 22726899 DOI: 10.1016/j.kjms.2012.02.004] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/23/2011] [Accepted: 07/18/2011] [Indexed: 10/28/2022] Open
Abstract
A wet or bloody tap is an inevitable complication while performing epidural block. The influence of different catheters on the incidence of intravascular cannulation during epidural catheterization has not been reported. We observed an initial, relatively different incidence of intravascular cannulation during the placement of different sorts of epidural catheter; hence, a retrospective review was conducted to explore the possible association. We reviewed 1-year interval anesthetic records of 1117 patients who had undergone epidural anesthesia or received patient-controlled epidural analgesia. Epidural catheter placement was performed by a loss of resistance technique with an 18-G Tuohy needle in lateral position. Patients were divided into two groups according to the different types of epidural catheters used (Perifix One, n=590; Perifix Standard, n=527). Primary outcome measurement was the incidence of intravascular injection. Other analyzed outcomes included dura puncture, failure rate, and low back pain. The incidence of epiduralintravascular cannulation was significantly lower using the Perifix One catheter (1.5%; 9/590) than using the Perifix Standard (4.6%; 24/527), p=0.003. The dura puncture rate did not differ significantly between the Perifix One (1.9%; 11/590) and the Perifix Standard (2.5%; 13/527), p=0.49. Failure rates and low back pain incidence were also comparable between the two groups. Application of the soft epidural catheter (Perifix One) may reduce the incidence of epidural intravascular cannulation. We suggest the use of Perifix One catheter instead of Perifix Standard catheter in daily practice.
Collapse
Affiliation(s)
- Chih-Kai Shih
- Department of Anesthesiology, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | | | | | | | | | | | | |
Collapse
|
28
|
Wang FY, Li RB, Liang HX, Shen Y, Guo XC, Wang ZY. [Homer protein expression after focal brain contusion in rats]. Fa Yi Xue Za Zhi 2011; 27:409-412. [PMID: 22393587] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
OBJECTIVE To investigate Homer protein expression after focal brain contusion and explore the relationship between expression and injury time. METHODS Focal brain contusion in rats was established and Homer protein expression in brain at different injury intervals after contusion was detected by immunohistochemistry and Western blotting. RESULTS A small amount of Homer positive expression cells were detected in control group, sham operated group and experimental group (0.5 h after contusion). The amount of Homer positive expression cells increased after 3 h and reached peak 12 h after contusion. The amount of positive cells continued to decrease 1 d after contusion and to the base level 7 d after contusion. Homer protein expression based on immunohistochemistry and Western blotting had statistical difference among adjacent groups. CONCLUSION Expression of Homer protein near the focal contusion area shows time dependence after brain contusion in rats.
Collapse
Affiliation(s)
- Fu-Yuan Wang
- Department of Forensic Pathology, School of Forensic Medicine, China Medical University, Shenyang 110001, China.
| | | | | | | | | | | |
Collapse
|
29
|
Chau SW, Wang FY, Wu CW, Lu DV, Shen YC, Hung CW, Cheng KI. Premolar loss following insertion of a Classic Laryngeal Mask Airway in a patient in the prone position. J Clin Anesth 2011; 23:588-9. [DOI: 10.1016/j.jclinane.2010.08.024] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2010] [Revised: 06/17/2010] [Accepted: 08/11/2010] [Indexed: 11/16/2022]
|
30
|
Cheng KI, Lai CS, Wang FY, Wang HC, Chang LL, Ho ST, Tsai HP, Kwan AL. Intrathecal lidocaine pretreatment attenuates immediate neuropathic pain by modulating Nav1.3 expression and decreasing spinal microglial activation. BMC Neurol 2011; 11:71. [PMID: 21676267 PMCID: PMC3141398 DOI: 10.1186/1471-2377-11-71] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.3] [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: 10/25/2010] [Accepted: 06/16/2011] [Indexed: 12/12/2022] Open
Abstract
Background Intrathecal lidocaine reverses tactile allodynia after nerve injury, but whether neuropathic pain is attenuated by intrathecal lidocaine pretreatment is uncertain. Methods Sixty six adult male Sprague-Dawley rats were divided into three treatment groups: (1) sham (Group S), which underwent removal of the L6 transverse process; (2) ligated (Group L), which underwent left L5 spinal nerve ligation (SNL); and (3) pretreated (Group P), which underwent L5 SNL and was pretreated with intrathecal 2% lidocaine (50 μl). Neuropathic pain was assessed based on behavioral responses to thermal and mechanical stimuli. Expression of sodium channels (Nav1.3 and Nav1.8) in injured dorsal root ganglia and microglial proliferation/activation in the spinal cord were measured on post-operative days 3 (POD3) and 7 (POD7). Results Group L presented abnormal behavioral responses indicative of mechanical allodynia and thermal hyperalgesia, exhibited up-regulation of Nav1.3 and down-regulation of Nav1.8, and showed increased microglial activation. Compared with ligation only, pretreatment with intrathecal lidocaine before nerve injury (Group P), as measured on POD3, palliated both mechanical allodynia (p < 0.01) and thermal hyperalgesia (p < 0.001), attenuated Nav1.3 up-regulation (p = 0.003), and mitigated spinal microglial activation (p = 0.026) by inhibiting phosphorylation (activation) of p38 MAP kinase (p = 0.034). p38 activation was also suppressed on POD7 (p = 0.002). Conclusions Intrathecal lidocaine prior to SNL blunts the response to noxious stimuli by attenuating Nav1.3 up-regulation and suppressing activation of spinal microglia. Although its effects are limited to 3 days, intrathecal lidocaine pretreatment can alleviate acute SNL-induced neuropathic pain.
Collapse
Affiliation(s)
- Kuang-I Cheng
- Division of Plastic and Reconstructive Surgery, Department of Surgery, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan.
| | | | | | | | | | | | | | | |
Collapse
|
31
|
Hu G, Cheng XN, Qi GJ, Wang FY, Lu F, Zhang XX, Zhai BP. Rice planting systems, global warming and outbreaks of Nilaparvata lugens (Stål). Bull Entomol Res 2011; 101:187-99. [PMID: 20961467 DOI: 10.1017/s0007485310000313] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/18/2023]
Abstract
Brown Planthopper (BPH, Nilaparvata lugens (Stål)) is one of the most serious pests of rice in both temperate and tropical regions of East and South Asia and has become especially problematic over the past few years. In order to analyze the effect of the change of rice cropping system on the population dynamics of BPH, field surveys of the occurrence and distribution of BPH were performed and other relevant data, including light trap data and ovary dissection data were collected in nearly 40 Chinese counties encompassing six provinces (or municipalities), including Hainan, Guangxi, Anhui, Shanghai, Fujian and Guangdong from April to October in 2007.The mixed planting areas of single- and double-cropping rice in China include Hubei, South and Central Anhui, North Hunan, and North Jiangxi. In these areas, double-cropping rice has now been greatly reduced and single-cropping rice has been rapidly increasing since 1997. The surveys revealed that when the immigration peak of BPH occurred in June and July, the single-cropping rice was at the tillering to booting stage and fit for BPH, but early rice had already matured and most of late rice had not yet been transplanted. BPH immigrants from southern rice areas prefer to inhabit and breed in single-cropping rice paddies. Moreover, farming activities between early rice and late rice interrupted the continuous growth of BPH populations in double-cropping rice paddies. As a result, in comparison with data collected 30 years ago, the spatiotemporal dynamics and migration patterns of BPH have dramatically changed in the lower-middle reaches of the Yangtze River. In the mixed planting areas, due to their high suitability, the BPH population in single-cropping rice grew so quickly that it caused serious local damage and there was mass emigration of macropterous progeny to the Yangtze River Delta in late August and early September.Global warming may also affect BPH populations, where results suggest steadily warmer autumns have occurred from the 1990s on, with such conditions gradually the norm. The combination of 'cooler summer' and 'warmer autumn' are conditions known to promote outbreaks of BPH in the lower-middle reaches of the Yangtze River. Immigrant BPH arrivals in late August and September now cause serious damage to late-maturing mid-season rice and late rice in the lower-middle reaches of the Yangtze River.
Collapse
Affiliation(s)
- G Hu
- Department of Entomology, Nanjing Agricultural University, No. 1 Weigang Road, Nanjing, China
| | | | | | | | | | | | | |
Collapse
|
32
|
Lu IC, Tsai CJ, Wu CW, Cheng KI, Wang FY, Tseng KY, Chiang FY. A comparative study between 1 and 2 effective doses of rocuronium for intraoperative neuromonitoring during thyroid surgery. Surgery 2011; 149:543-8. [DOI: 10.1016/j.surg.2010.11.006] [Citation(s) in RCA: 42] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/07/2010] [Accepted: 11/11/2010] [Indexed: 11/16/2022]
|
33
|
Lin CK, Lau YW, Chan HM, Wang FY, Lin TJ, Cheng KI, Feng YT, Hung CL. Intravenous thiamylal and local anesthetic infiltration for pediatric facial repair procedures performed in emergency departments. Kaohsiung J Med Sci 2010; 26:192-9. [PMID: 20434100 DOI: 10.1016/s1607-551x(10)70028-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/30/2009] [Accepted: 10/07/2009] [Indexed: 10/19/2022] Open
Abstract
Thiamylal is widely used for procedural sedation in emergency departments (ED); however, there are limited safety data for doses of thiamylal > 5 mg/kg in children. We investigated whether intravenous thiamylal in combination with local anesthetics is safe and effective for pediatric procedural sedation in the ED and to identify the association between increasing doses thiamylal and adverse events. Between July 2004 and June 2008, 227 children who underwent procedural sedation met the inclusion criteria, including 105 males (46.3%) and 122 females (53.7%). Facial laceration was the most common indication for procedural sedation. All children received an intravenous injection of thiamylal, with a loading dose of 5 mg/kg. Eighty-one children (35.7%) received a supplemental dose of 2.5 mg/kg thiamylal because of inadequate sedation. Of these, 27 (11.9%) received a second supplemental dose of 2.5 mg/kg because of inadequate sedation. Sixty-six patients (29.1%) experienced 75 mild and self-resolving adverse events, and most of which (15/75; 20%) were drowsiness. Four (1.8%) patients experienced oxygen saturation below 96%, which was related to the supplemental dose of thiamylal (p = 0.002). No children suffered from any lasting or potentially serious complications. Our results indicate that intravenous thiamylal in combination with local anesthetic infiltration is a well tolerated for therapeutic procedures in the ED. Thiamylal offers rapid onset of sedation without compromising the patient's cardiorespiratory function during pediatric procedural sedation.
Collapse
Affiliation(s)
- Ching-Kuo Lin
- Department of Surgery, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | | | | | | | | | | | | | | |
Collapse
|
34
|
|
35
|
Li RB, Guo XC, Liang HX, Wang FY, Zhu BL. Study on changes of MMP-3 expression after brain contusion in rats. Leg Med (Tokyo) 2009; 11 Suppl 1:S176-9. [DOI: 10.1016/j.legalmed.2009.02.029] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/18/2008] [Revised: 01/14/2009] [Accepted: 02/02/2009] [Indexed: 10/21/2022]
|
36
|
Wang FY, Shi BS, Guo GC. Observation of time correlation function of multimode two-photon pairs on a rubidium D2 line. Opt Lett 2008; 33:2191-2193. [PMID: 18830348 DOI: 10.1364/ol.33.002191] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
We report on the generation of a type-I multimode two-photon state on a rubidium D(2) line (780 nm) using periodically poled KTiOPO(4) crystals. With a degenerate optical parametric oscillator far below threshold, we observe an oscillatory correlation function; the cross correlation between two photons shows a cavity bandwidth of about 7.8 MHz. We also use a Fabry-Perot etalon to filter its most longitudinal modes and observe its time correlation function. The experimental data are well fitted to theoretical curves. This system could be utilized for demonstrating storage and retrieval of narrow-band photons in Rb atomic ensembles, which is important for long-distance quantum communication.
Collapse
Affiliation(s)
- Fu-Yuan Wang
- Key Laboratory of Quantum Information, University of Science and Technology of China, Hefei, China
| | | | | |
Collapse
|
37
|
Hsu HT, Lu IC, Chang YL, Wang FY, Kuo YW, Chiu SL, Chu KS. Lateral Rotation of the Lower Extremity Increases the Distance Between the Femoral Nerve and Femoral Artery: An Ultrasonographic Study. Kaohsiung J Med Sci 2007; 23:618-23. [DOI: 10.1016/s1607-551x(08)70060-3] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
|
38
|
Wang FY, Wu SH, Lu IC, Hsu HT, Soo LY, Tang CS, Chu KS. Ultrasonographic examination to search out the optimal upper arm position for coracoid approach to infraclavicular brachial plexus block--a volunteer study. Acta Anaesthesiol Taiwan 2007; 45:15-20. [PMID: 17424754] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/14/2023]
Abstract
BACKGROUND Infraclavicular brachial plexus block has been widely used for surgical procedures below the mid humerus owing to its excellent anesthetic quality and ease of practice. However, what is the optimal upper arm position for carrying out the procedure still lacks consensus of opinion. The primary goal of this study was to determine the optimal upper arm position for coracoid infraclavicular block by ultrasonographic examination. METHODS High-frequency (5-10 MHz) ultrasonographic examination on the vertical line 2 cm medial to the coracoid process was performed in 40 volunteers. We assessed the influence of four different upper arm positions on the topographic anatomy of the infraclavicular region. Ultrasonography-derived distances and morphometric measurements were applied to evaluate the optimal puncture site. The deviation of coracoid puncture site from the ultrasonographically modified ideal puncture site in distance was also recorded. RESULTS When the upper arm was abducted 900, the brachial plexus was much closer to the skin (1.67 cm) and farther from the pleura (1.15 cm) as compared with other positions. In this position, the revealation of anterosuperior plexus relative to artery, identification of all three cords and pleura were 53.8%, 64.1% and 87.2%, respectively. We also found that as the upper arm was drawing from abduction to adduction the ideal puncture site tended to shift more inferiorly. CONCLUSIONS We recommend the most optimal position for carrying out coracoid infraclavicular brachial plexus block is to abduct the upper arm 90 degrees with external rotation of the shoulder. Though ultrasonographic guidance is suggested for infraclaricular brachial plexus block, an optimal position for puncture site determined by anatomical landmark is also acceptable.
Collapse
Affiliation(s)
- Fu-Yuan Wang
- Department of Anesthesiology, Kaohsiung Medical University Hospital
| | | | | | | | | | | | | |
Collapse
|
39
|
Lee TT, Wang FY, Newell RB. Advances in distributed parameter approach to the dynamics and control of activated sludge processes for wastewater treatment. Water Res 2006; 40:853-69. [PMID: 16458947 DOI: 10.1016/j.watres.2005.12.025] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2004] [Revised: 08/30/2005] [Accepted: 12/17/2005] [Indexed: 05/06/2023]
Abstract
This paper presents a review of modelling and control of biological nutrient removal (BNR)-activated sludge processes for wastewater treatment using distributed parameter models described by partial differential equations (PDE). Numerical methods for solution to the BNR-activated sludge process dynamics are reviewed and these include method of lines, global orthogonal collocation and orthogonal collocation on finite elements. Fundamental techniques and conceptual advances of the distributed parameter approach to the dynamics and control of activated sludge processes are briefly described. A critical analysis on the advantages of the distributed parameter approach over the conventional modelling strategy in this paper shows that the activated sludge process is more adequately described by the former and the method is recommended for application to the wastewater industry.
Collapse
Affiliation(s)
- T T Lee
- Institute of High Performance Computing, 1 Science Park Road #01-01 The Capricorn Singapore Science Park 11, Singapore 117528, Singapore.
| | | | | |
Collapse
|
40
|
Chien I, Lu IC, Wang FY, Soo LY, Yu KL, Tang CS. Spinal Process Landmark as a Predicting Factor for Difficult Epidural Block: A Prospective Study in Taiwanese Patients. Kaohsiung J Med Sci 2003; 19:563-8. [PMID: 14658485 DOI: 10.1016/s1607-551x(09)70507-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022] Open
Abstract
Although epidural anesthesia is a common practice in neuraxial blockade, difficult access to the epidural space is a frequent problem in operating theaters. We designed this study of epidural blocks to determine if the spinal landmark grading system is valuable in predicting a difficult epidural block. Before the epidural block, we collected the following data: demographics, body habitus (normal, thin, obese, pregnant), spinal anatomy (normal, deformed), spinal level (lumbar, thoracic), and spinal landmark grade (grade 1: spinous processes visible; grade 2: spinous processes not seen but easily palpated; grade 3: spinous processes not seen and not palpated but the interval between them is palpated as a low landmark under the thumb; grade 4: other). We performed all 848 epidural blocks initially using a midline approach and an 18-gauge Touhy needle. We evaluated the technical difficulty of the epidural block using three methods: whether the epidural block was accomplished at the spinal level (first-level success); the total number of attempts at skin puncture (attempts-S); and total number of attempts to change ligament puncture direction (attempts-L) required to complete the epidural block. Of all examined factors, spinal landmark grade correlated best with technical difficulty as measured by all three methods. Deformed spinal anatomy and body habitus both correlated with difficulty, merely from the total numbers of attempts (attempts-S and attempts-L). Thoracic epidurals were more difficult than lumbar epidurals by all three measures of difficulty. We concluded that this spinal landmark grading system is valuable in predicting a difficult epidural block and advocate its use as a predictor by anesthesiologists.
Collapse
Affiliation(s)
- I Chien
- Department of Anesthesiology, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | | | | | | | | | | |
Collapse
|
41
|
Li JH, Lu SQ, Zhang YP, Wang FY, Wen JF. [Molecular phylogeny of Giardia lamblia based on triose phosphate isomerase (tim) gene sequence]. Zhongguo Ji Sheng Chong Xue Yu Ji Sheng Chong Bing Za Zhi 2000; 18:141-5. [PMID: 12567687] [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: 04/20/2023]
Abstract
OBJECTIVE To investigate the intraspecies phylogeny and genetic diversity of G. lamblia. METHODS Total genomic DNA was extracted and partial fragments of tim gene were amplified by PCR. All the nucleotide sequences were analyzed by means of phylogenetic analysis, which were constructed with pasimony and N-J methods. RESULTS A total of 124 variable sites (23% of the total sequences detected) were defined, most of which were found at the silent sites of codons. Two similar phylogenetic trees were constructed, subdividing 16 isolates into two groups. CONCLUSION The genetic diversity of G. lamblia appear to be little affected by both the host and geography, while natural-selection might play an important role at the DNA molecular evolution level of tim gene. The tim gene may be considered to be a very useful genetic marker of the population genetic structure of G. lamblia.
Collapse
Affiliation(s)
- J H Li
- Key Laboratory of Cellular and Molecular Evolution, Chinese Academy of Sciences, Kunming 650233
| | | | | | | | | |
Collapse
|
42
|
Wiellette EL, Harding KW, Mace KA, Ronshaugen MR, Wang FY, McGinnis W. spen encodes an RNP motif protein that interacts with Hox pathways to repress the development of head-like sclerites in the Drosophila trunk. Development 1999; 126:5373-85. [PMID: 10556062 DOI: 10.1242/dev.126.23.5373] [Citation(s) in RCA: 58] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022]
Abstract
Drosophila has eight Hox proteins, and they require factors acting in parallel to regulate different segmental morphologies. Here we find that the Drosophila gene split ends (spen), has a homeotic mutant phenotype, and appears to encode such a parallel factor. Our results indicate that spen plays two important segment identity roles. One is to promote sclerite development in the head region, in parallel with Hox genes; the other is to cooperate with Antennapedia and teashirt to suppress head-like sclerite development in the thorax. Our results also indicate that without spen and teashirt functions, Antennapedia loses its ability to specify thoracic identity in the epidermis. spen transcripts encode extraordinarily large protein isoforms (approx. 5,500 amino acids), which are concentrated in embryonic nuclei. Both Spen protein isoforms and Spen-like proteins in other animals possess a clustered repeat of three RNP (or RRM) domains, as well as a conserved motif of 165 amino acids (SPOC domain) at their C-termini. Spen is the only known homeotic protein with RNP binding motifs, which indicates that splicing, transport, or other RNA regulatory steps are involved in the diversification of segmental morphology. Previous studies by Dickson and others (Dickson, B. J., Van Der Straten, A., Dominguez, M. and Hafen, E. (1996). Genetics 142, 163–171) identified spen as a gene that acts downstream of Raf to suppress Raf signaling in a manner similar to the ETS transcription factor Aop/Yan. This raises the intriguing possibility that the Spen RNP protein might integrate signals from both the Raf and Hox pathways.
Collapse
Affiliation(s)
- E L Wiellette
- Department of Biology, University of California at San Diego, La Jolla, CA, 92093
| | | | | | | | | | | |
Collapse
|
43
|
Kuniyoshi JS, Kuniyoshi CJ, Lim AM, Wang FY, Bade ER, Lau R, Thomas EK, Weber JS. Dendritic cell secretion of IL-15 is induced by recombinant huCD40LT and augments the stimulation of antigen-specific cytolytic T cells. Cell Immunol 1999; 193:48-58. [PMID: 10202112 DOI: 10.1006/cimm.1999.1469] [Citation(s) in RCA: 79] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Dendritic cells (DC) are professional antigen-presenting cells which stimulate strong proliferative and cytolytic T cell responses. Stimulation of CD40 on dendritic cells by its ligands and anti-CD40 antibodies induces maturation and enhances DC stimulatory ability. In order to understand the mechanism by which ligand:CD40 interactions augment DC function, we assessed the role of T cell stimulatory cytokines IL-12 and IL-15 in the function of DC stimulated with soluble trimeric CD40L, a recombinant fusion protein incorporating three covalently linked extracellular CD40L domains (huCD40LT). Peripheral blood derived DC treated with huCD40LT and/or IFN-gamma were used to stimulate T cell responses in vitro to specific antigens. DC treated with huCD40LT or IFN-gamma/huCD40LT stimulated enhanced T cell proliferation to CASTA, a soluble protein from C. albicans, induced T cells with augmented antigen-specific lysis, and increased the yield of antigen-specific IFN-gamma-producing T cells. IL-15 production by DC was enhanced in cultures treated with huCD40LT and correlated with expansion of antigen-specific cytolytic T cells. Addition of a neutralizing anti-IL-15 monoclonal antibody inhibited the expansion of viral and tumor antigen-specific T cells stimulated by IFN-gamma and huCD40LT-treated DC. In contrast, this enhanced stimulatory ability of DC did not appear to depend on synthesis of IL-12 since huCD40LT treatment stimulated the generation of antigen-specific cytokine producing and cytolytic T cells without increased IL-12 production. Addition of anti-IL-12 monoclonal antibody did not inhibit expansion of these cells. These data suggest that production of IL-15 but not IL-12 is an important factor in the enhanced immunostimulatory ability of huCD40LT-treated DC.
Collapse
Affiliation(s)
- J S Kuniyoshi
- Departments of Molecular Microbiology and Immunology and Medicine, University of Southern California School of Medicine, Los Angeles, California, 90033, USA
| | | | | | | | | | | | | | | |
Collapse
|
44
|
Su KE, Wang FY, Chi PY. Worm recovery and precipitin antibody response in guinea pigs and rats infected with Clonorchis sinensis. J Microbiol Immunol Infect 1998; 31:211-6. [PMID: 10496161] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/14/2023]
Abstract
Guinea pigs (Hartley strain) and rats (Wistar strain) were each fed 200 and 100 Clonorchis sinensis metacercariae, respectively. Five animals from each species were sacrificed weekly between 1-8 weeks postinfection (WPI) and then at 12, 16, 20 and 30 WPI for collection of worms, bile and sera. The overall worm recovery rates for guinea pigs and rats were 18.7% and 12.4%, respectively. Only one of the five rats examined at 20 WPI still harbored one worm, while all were worm-free at 30 WPI. By a double diffusion test, no antibodies were detected against C. sinensis adult antigens in the bile juice. Serum antibodies were detected in at least 95% of the infected guinea pigs between 4-30 WPI and rats between 3-16 WPI. Precipitin antibodies seemed to be correlated with the presence of live worms in rats that had been infected for more than 12 weeks.
Collapse
Affiliation(s)
- K E Su
- Department of Parasitology, College of Medicine, National Taiwan University, Taipei, ROC
| | | | | |
Collapse
|
45
|
Ren YX, Wang FY, Cao HW. [Nursing care in common breast problems in early breast feeding]. Zhonghua Hu Li Za Zhi 1997; 32:581-3. [PMID: 9496001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
|
46
|
Wang FY. [Nursing cooperation during surgery in hip joint prosthesis]. Zhonghua Hu Li Za Zhi 1997; 32:263-4. [PMID: 9304985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
|
47
|
Lu SQ, Wang ZY, Yan G, Chen PH, Zhu H, Gao ZZ, Wang FY. Four isolates of Giardia lamblia cultivated axenically in China and the restriction endonuclease analysis of their DNA. J Parasitol 1996; 82:659-61. [PMID: 8691382] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/01/2023] Open
Abstract
Axenic culture of 4 Giardia lamblia isolates, 3 from humans and 1 from a rabbit, have been established in China for the first time. The trophozoites of Giardia used for the initial cultivation were obtained from the purified cysts excysted in suckling gerbil (Meriones unguiculatus) and BALB/c mice. Modified TYI-S-33 medium was used in establishment of the culture. DNA banding patterns were compared using restriction-endonuclease analysis and then followed by Southern blot analysis with genomic DNA as a probe. The 4 isolates showed identical banding patterns after being digested with Hind III, Bgl II, Pts I, Hae III, and Hinf. Two different banding patterns were observed after further digestion with Alu I and southern blot analysis. This indicated that isolates of human and rabbit origins do not have strict host specificity and that cross transmission may occur between humans and rabbits.
Collapse
Affiliation(s)
- S Q Lu
- Department of Cell Biology, Capital University of Medical Sciences, Beijing, P. R. China
| | | | | | | | | | | | | |
Collapse
|
48
|
Chang CP, Chang JY, Wang FY, Chang JG. The effect of Chinese medicinal herb Zingiberis rhizoma extract on cytokine secretion by human peripheral blood mononuclear cells. J Ethnopharmacol 1995; 48:13-19. [PMID: 8569242 DOI: 10.1016/0378-8741(95)01275-i] [Citation(s) in RCA: 23] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
The ethanolic extract of the Chinese medicinal herb Zingiberis rhizoma, the rhizome of Zingiber officinale Roscoe (Zingiberaceae), was found to show biphasic effects on secretion of cytokines by human peripheral blood mononuclear cells in vitro. In this study, the augmentative effect of Zingiberis rhizoma extract on cytokine secretion was shown to be time dependent. No significant secretion of cytokine was noted when the reaction time was 1 or 3 h. Secretion of interleukin-1beta (IL-1beta), interleukin-6 (IL-6), and granulocyte-macrophage colony-stimulating factor (GM-CSF) by the mononuclear cells was markedly increased in the presence of a low concentration of Zingiberis rhizoma extract, varying from 10-30 mg/ml, when the reaction time was 18 or 24 h. A higher concentration of the herbal extract did not show similar or stronger augmentative effect as did low concentration of the herbal extract.
Collapse
Affiliation(s)
- C P Chang
- Department of Molecular Medicine and Chinese Medicine, Taipei Municipal Jen-Ai Hospital, Taiwan
| | | | | | | |
Collapse
|
49
|
Chang CP, Chang JY, Wang FY, Tseng J, Chang JG. The effect of Evodia rutaecarpa extract on cytokine secretion by human mononuclear cells in vitro. Am J Chin Med 1995; 23:173-80. [PMID: 7572779 DOI: 10.1142/s0192415x95000237] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/26/2023]
Abstract
The effect of Evodia rutaecarpa extract on cytokine secretion by human mononuclear cells in vitro was investigated. Evodia rutaecarpa extract of various concentrations in mononuclear cell culture medium showed biphasic effects on the secretion of interleukin 1 beta (IL-1 beta), interleukin 6 (IL-6), tumor necrosis factor alpha (TNF-alpha), and granulocyte-macrophage colony stimulating factor (GM-CSF) by the mononuclear cells. Generally speaking, a low to medium level of Evodia rutaecarpa extract, in concentrations ranging from 10% to 30%, showed significant stimulating effects on the secretion of IL-1 beta, IL-6, TNF-alpha and GM-CSF. On the other hand, high level of Evodia rutaecarpa extract, with concentration more than 40%, lost its stimulating effects. Moreover, reaction time affected the stimulating effects of Evodia rutaecarpa extract on cytokine secretion by mononuclear cells. Mononuclear cell culture medium containing Evodia rutaecarpa extract that was allowed to react for 18 or 24 hours showed significantly better stimulating effects than that reacted for 1 or 3 hours.
Collapse
Affiliation(s)
- C P Chang
- Department of Molecular Medicine & Chinese Medicine, Taipei Municipal Jen-Ai Hospital, Taiwan
| | | | | | | | | |
Collapse
|
50
|
Chang JG, Shih PP, Chang CP, Chang JY, Wang FY, Tseng J. The stimulating effect of radix aconiti extract on cytokines secretion by human mononuclear cells. Planta Med 1994; 60:576-578. [PMID: 7809216 DOI: 10.1055/s-2006-959576] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
|