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Kang LM, Mi R, Cui XD, Fu J, Wang WP, Li L, Li TG, Wang XY, Xiao F, Hou XL. [Clinical characteristics of pertussis in hospitalized children under 3 months]. Zhonghua Yi Xue Za Zhi 2024; 104:1422-1425. [PMID: 38644294 DOI: 10.3760/cma.j.cn112137-20231107-01030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 04/23/2024]
Abstract
Demographic data and clinical data were collected retrospectively from patients with pertussis at the Children's Hospital Affiliated to the Capital Institute of Pediatrics between March 2011 and February 2023. Among the 270 hospitalized patients, 151 cases were male and 119 were female. The youngest age of admission was 10 days and the eldest age of admission was 11 years. The 270 hospitalized patients were divided into two groups according to onset age: <3 months (n=143) and≥3 months (n=127). For those in the <3-month-old group, the incidence of severe pneumonia and severe pertussis were 21.0% and 38.5%, respectively, both were significantly higher than those in≥3-month-old group (7.9% and 11.0%, both P<0.05). For those in the <3-month-old group, paroxysmal spasmodic cough, post-tussive vomiting, paroxysmal cyanosis, apnea, and decreased heart rate after coughing were 86.7%, 25.2%, 38.5%, 7.0% and 16.8%, respectively, all were significantly higher than those in ≥3-month-old group (76.4%, 10.2%, 15.7%, 1.6% and 1.6%, all P<0.05). For those in the<3-month-old group, the incidence of hypoxemia, respiratory failure, were 36.4%, 16.8%, respectively, and both were significantly higher than those in≥3-month-old group (10.2%, 7.1%, P<0.05). It indicated that among the infants under 3 months, the incidence of vomiting after coughing, paroxysmal cyanosis, apnea, hypoxemia, respiratory failure, decreased heart rate after coughing and severe pneumonia were significantly higher than those above 3 months. Infants under 3 months were prone to severe pertussis.
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Affiliation(s)
- L M Kang
- Department of Neonatal Medicine, Affiliated Children's Hospital, Capital Institute of Pediatrics, Beijing 100020, China
| | - R Mi
- Department of Neonatal Medicine, Affiliated Children's Hospital, Capital Institute of Pediatrics, Beijing 100020, China
| | - X D Cui
- Central Lab, Affiliated Children's Hospital, Capital Institute of Pediatrics, Beijing 100020, China
| | - J Fu
- Central Lab, Affiliated Children's Hospital, Capital Institute of Pediatrics, Beijing 100020, China
| | - W P Wang
- Department of Epidemiology, Affiliated Children's Hospital, Capital Institute of Pediatrics, Beijing 100020, China
| | - L Li
- Department of Neonatal Medicine, Affiliated Children's Hospital, Capital Institute of Pediatrics, Beijing 100020, China
| | - T G Li
- Department of Neonatal Medicine, Affiliated Children's Hospital, Capital Institute of Pediatrics, Beijing 100020, China
| | - X Y Wang
- Department of Neonatal Medicine, Affiliated Children's Hospital, Capital Institute of Pediatrics, Beijing 100020, China
| | - F Xiao
- Central Lab, Affiliated Children's Hospital, Capital Institute of Pediatrics, Beijing 100020, China
| | - X L Hou
- Department of Pediatrics, Peking University First Hospital, Beijing 100034, China
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Wang L, Wang Y, Zhang RY, Wang Y, Liang W, Li TG. Management of acute carbamazepine poisoning: A narrative review. World J Psychiatry 2023; 13:816-830. [DOI: 10.5498/wjp.v13.i11.816] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/05/2023] [Revised: 09/23/2023] [Accepted: 10/11/2023] [Indexed: 11/17/2023] Open
Abstract
Standard management protocols are lacking and specific antidotes are unavailable for acute carbamazepine (CBZ) poisoning. The objective of this review is to provide currently available information on acute CBZ poisoning, including its management, by describing and summarizing various therapeutic methods for its treatment according to previously published studies. Several treatment methods for CBZ poisoning will be briefly introduced, their advantages and disadvantages will be analyzed and compared, and suggestions for the clinical treatment of CBZ poisoning will be provided. A literature search was performed in various English and Chinese databases. In addition, the reference lists of identified articles were screened for additional relevant studies, including non-indexed reports. Non-peer-reviewed sources were also included. In the present review, 154 articles met the inclusion criteria including case reports, case series, descriptive cohorts, pharmacokinetic studies, and in vitro studies. Data on 67 patients, including 4 fatalities, were reviewed. Based on the summary of cases reported in the included articles, the cure rate of CBZ poisoning after symptomatic treatment was 82% and the efficiency of hemoperfusion was 58.2%. Based on the literature review, CBZ is moderately dialyzable and the recommendation for CBZ poisoning is supportive management and gastric lavage. In severe cases, extracorporeal treatment is recommended, with hemodialysis as the first choice.
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Affiliation(s)
- Luan Wang
- Department of Emergency Medicine, Shengjing Hospital of China Medical University, Shenyang 110004, Liaoning Province, China
| | - Yang Wang
- Department of General Surgery, The 4th Affiliated Hospital of China Medical University, Shenyang 110032, Liaoning Province, China
| | - Ruo-Ying Zhang
- Department of Emergency Medicine, Shengjing Hospital of China Medical University, Shenyang 110004, Liaoning Province, China
| | - Yao Wang
- Department of Emergency Medicine, Shengjing Hospital of China Medical University, Shenyang 110004, Liaoning Province, China
| | - Wei Liang
- Department of Emergency Medicine, Shengjing Hospital of China Medical University, Shenyang 110004, Liaoning Province, China
| | - Tie-Gang Li
- Department of Emergency Medicine, Shengjing Hospital of China Medical University, Shenyang 110004, Liaoning Province, China
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Lv SL, Zeng ZF, Gan WQ, Wang WQ, Li TG, Hou YF, Yan Z, Zhang RX, Yang M. Lp-PLA2 inhibition prevents Ang II-induced cardiac inflammation and fibrosis by blocking macrophage NLRP3 inflammasome activation. Acta Pharmacol Sin 2021; 42:2016-2032. [PMID: 34226664 PMCID: PMC8632984 DOI: 10.1038/s41401-021-00703-7] [Citation(s) in RCA: 25] [Impact Index Per Article: 8.3] [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: 01/27/2021] [Accepted: 05/20/2021] [Indexed: 12/30/2022] Open
Abstract
Macrophage-mediated inflammation plays an important role in hypertensive cardiac remodeling, whereas effective pharmacological treatments targeting cardiac inflammation remain unclear. Lipoprotein-associated phospholipase A2 (Lp-PLA2) contributes to vascular inflammation-related diseases by mediating macrophage migration and activation. Darapladib, the most advanced Lp-PLA2 inhibitor, has been evaluated in phase III trials in atherosclerosis patients. However, the role of darapladib in inhibiting hypertensive cardiac fibrosis remains unknown. Using a murine angiotensin II (Ang II) infusion-induced hypertension model, we found that Pla2g7 (the gene of Lp-PLA2) was the only upregulated PLA2 gene detected in hypertensive cardiac tissue, and it was primarily localized in heart-infiltrating macrophages. As expected, darapladib significantly prevented Ang II-induced cardiac fibrosis, ventricular hypertrophy, and cardiac dysfunction, with potent abatement of macrophage infiltration and inflammatory response. RNA sequencing revealed that darapladib strongly downregulated the expression of genes and signaling pathways related to inflammation, extracellular matrix, and proliferation. Moreover, darapladib substantially reduced the Ang II infusion-induced expression of nucleotide-binding oligomerization domain-like receptor with pyrin domain 3 (NLRP3) and interleukin (IL)-1β and markedly attenuated caspase-1 activation in cardiac tissues. Furthermore, darapladib ameliorated Ang II-stimulated macrophage migration and IL-1β secretion in macrophages by blocking NLRP3 inflammasome activation. Darapladib also effectively blocked macrophage-mediated transformation of fibroblasts into myofibroblasts by inhibiting the activation of the NLRP3 inflammasome in macrophages. Overall, our study identifies a novel anti-inflammatory and anti-cardiac fibrosis role of darapladib in Lp-PLA2 inhibition, elucidating the protective effects of suppressing NLRP3 inflammasome activation. Lp-PLA2 inhibition by darapladib represents a novel therapeutic strategy for hypertensive cardiac damage treatment.
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Affiliation(s)
- Si-Lin Lv
- State Key Laboratory of Bioactive Substances and Function of Natural Medicine, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
| | - Zi-Fan Zeng
- State Key Laboratory of Bioactive Substances and Function of Natural Medicine, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
| | - Wen-Qiang Gan
- State Key Laboratory of Bioactive Substances and Function of Natural Medicine, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
| | - Wei-Qi Wang
- State Key Laboratory of Bioactive Substances and Function of Natural Medicine, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
| | - Tie-Gang Li
- State Key Laboratory of Bioactive Substances and Function of Natural Medicine, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
| | - Yu-Fang Hou
- State Key Laboratory of Bioactive Substances and Function of Natural Medicine, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
| | - Zheng Yan
- State Key Laboratory of Bioactive Substances and Function of Natural Medicine, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
| | - Ri-Xin Zhang
- State Key Laboratory of Bioactive Substances and Function of Natural Medicine, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China
| | - Min Yang
- State Key Laboratory of Bioactive Substances and Function of Natural Medicine, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, 100050, China.
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Cai WF, Yuan J, Huang LF, Chen C, Ma Y, Wang H, Zhang CH, Zhang ZB, Li TG, Wang M. [Comparison of epidemic characteristics between severe acute respiratory syndrome and coronavirus disease 2019]. Zhonghua Yu Fang Yi Xue Za Zhi 2020; 54:726-730. [PMID: 32842293 DOI: 10.3760/cma.j.cn112150-20200312-00325] [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 compare epidemic characteristics between severe acute respiratory syndrome (SARS) and coronavirus disease 2019 (COVID-19). Methods: The general information, including epidemiological and clinical data of the confirmed cases during the epidemic period of the two infectious diseases was collected. The data of SARS in Guangzhou was derived from the technical files of Guangzhou Center for Disease Control and Prevention (GZCDC), including the statistical report and brief report of the epidemic situation (from January 2 to May 11, 2003);The data of COVID-19 in Wuhan was derived from the epidemic data published by Wuhan health and Health Committee's official website and other publicly reported documents (from December 9, 2019 to March 11, 2020). Descriptive analysis was used for a comparativeanalysis of the time and age characteristics, the number of cases, basic reproduction number (R0), proportion of medical staff in confirmed cases (%), crude mortality, etc. Results: A total of 1 072 cases of SARS in Guangzhou were included in the study. The incidence ratio of male to female was 1∶1.26. 43 cases of death were reported with a mortality rate of 4.01%. The median age was 36 years old. The proportion of medical staff in the early stage of the epidemic was 29.04% (88 cases). As to COVID-19 in Wuhan, a total of 49 978 cases were included, The incidence ratio of male to female was 1.04∶1. The 2 423 cases of death were reported with a mortality rate of 4.85%. The median age was 56 years old. The proportion of medical staff in the early stage of the epidemic was 30.43% (42 cases). Conclusion: The COVID-19 in Wuhan has the characteristics of high incidence and wide population. However, the epidemic situation is falling rapidly, and the prevention and control strategy needs to be adjusted timely. The prevention and control of nosocomial infection should be addressed in future.
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Affiliation(s)
- W F Cai
- Department Ofemergency Management,Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China
| | - J Yuan
- Department Ofemergency Management,Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China
| | - L F Huang
- Department of Infectious Disease Control and Prevention,Guangzhou Center for Disease Control and Prevention, Guangzhou 510000, China
| | - C Chen
- Division of Medical Administration, Guangzhou No. Eight Hospital, Guangzhou 510440, China
| | - Y Ma
- Division of Medical Administration, Guangzhou No. Eight Hospital, Guangzhou 510440, China
| | - H Wang
- Division of Medical Administration, Guangzhou No. Eight Hospital, Guangzhou 510440, China
| | - C H Zhang
- Department of Immunization Planning, Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China
| | - Z B Zhang
- Division of Medical Administration, Guangzhou No. Eight Hospital, Guangzhou 510440, China
| | - T G Li
- Guagnzhou Chest Hospital, Guangzhou 510095, China
| | - M Wang
- Division of Medical Administration, Guangzhou No. Eight Hospital, Guangzhou 510440, China
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Li XQ, Cai WF, Huang LF, Chen C, Liu YF, Zhang ZB, Yuan J, Li TG, Wang M. [Comparison of epidemic characteristics between SARS in 2003 and COVID-19 in 2020 in Guangzhou]. Zhonghua Liu Xing Bing Xue Za Zhi 2020; 41:634-637. [PMID: 32159317 DOI: 10.3760/cma.j.cn112338-20200228-00209] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: By analyzing the epidemic characteristics and related indicators of SARS and COVID-19, to explore the reasons for the similarities and differences of the two epidemics, so as to provide reference for epidemic prevention and control. Methods: The general situation, clinical classification, activity history, contact history, family members' contact and incidence of the two infectious diseases in Guangzhou were collected and used to analyze the time characteristics, occupational characteristics, age characteristics and other key indicators of the two diseases, including the number of cases, composition ratio (%), mean, median, crude mortality, etc. Results: A total of 1 072 cases of SARS were included in the study. Three hundred and fifty three were severe cases with the incidence of 30.13%. Forty three cases of death were reported with a mortality rate of 4.01%. The average age was 46 years old, and 26.31% of the cases were medical staff. The interval time between first report to continuous zero reports was 129 days. As to COVID-19, a total of 346 cases were included. 58 of which were severe cases with the incidence of 16.67%. One case of death was reported with a mortality rate of 0.29%. The average age was 38 years old, and no hospital infection among medical staff was reported. The interval time between first report to continuous zero reports was 35 days. Conclusions: The prevention and control strategies for COVID-19 were more effective compared to that of SARS, and the emergency response procedures were worth to be evaluated and summarized.
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Affiliation(s)
- X Q Li
- Guagnzhou Chest Hospital, Guangzhou 510095, China
| | - W F Cai
- Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China
| | - L F Huang
- Guagnzhou No. Eight Hospital, Guangzhou 510000, China
| | - C Chen
- Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China
| | - Y F Liu
- Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China
| | - Z B Zhang
- Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China
| | - J Yuan
- Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China
| | - T G Li
- Guagnzhou Chest Hospital, Guangzhou 510095, China
| | - M Wang
- Guangzhou Center for Disease Control and Prevention, Guangzhou 510440, China
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6
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Li TG, Wang M. [Be alert to superposed effect of seasonal influenza while fighting against COVID-19]. Zhonghua Yu Fang Yi Xue Za Zhi 2020; 54:337-339. [PMID: 32268633 DOI: 10.3760/cma.j.cn11250-20200208-00078] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
COVID-19 continues to spread throughout the country, and the prevention and control of the epidemic has entered a critical period. However, southern cities with severe outbreaks are about to enter the seasonal influenza season. We should strengthen the epidemiological investigation, optimize the laboratory testing strategy, take effective measures, strengthen the prevention and control of influenza epidemic, and minimize the interference to the COVID-19 epidemic.
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Affiliation(s)
- T G Li
- Guagnzhou Chest Hospital, Guangzhou 510095, China
| | - M Wang
- Guangzhou Center for Disease Control and Prevention, Guangzhou 510045, China
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Liu YH, Lu JY, Liu WH, Ma Y, Cao L, Li KB, Li TG, Zhang ZB, Yang ZC. [Epidemiological characteristics of a case infected with avian influenza A (H5N6) virus associated with exposure to aerosol]. Zhonghua Liu Xing Bing Xue Za Zhi 2020; 41:358-362. [PMID: 32294835 DOI: 10.3760/cma.j.issn.0254-6450.2020.03.015] [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 epidemiological and clinical characteristics of a case infected with avian influenza A (H5N6) virus associated with exposure to aerosol and provide evidence for the prevention and control of human infection with avian influenza virus. Methods: Epidemiological investigation was conducted to identify the history of exposure, infection route, and disease progression. Real-time fluorescent quantitative RT-PCR was used to test the samples collected from the case, close contacts, environment and poultry market. Results: The case had no history of exposure to live poultry and poultry market. But before the onset the case had a history of exposure to the live poultry placed in a car with doors and windows closed. The samples collected from the case's lower respiratory tract and the remaining frozen chicken meat were all influenza A (H5N6) virus positive. Conclusions: The source of infection was the live poultry, and the infection route might be the exposure to aerosol in a car with doors and windows closed, where the poultry were temporarily stored. It is necessary to promote centralized poultry slaughtering, cold chain distribution and fresh poultry sale, as well as strengthen health education and establish the concept of consuming fresh poultry.
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Affiliation(s)
- Y H Liu
- Guangzhou Municipal Center for Disease Control and Prevention, Guangzhou 510440, China
| | - J Y Lu
- Guangzhou Municipal Center for Disease Control and Prevention, Guangzhou 510440, China
| | - W H Liu
- Guangzhou Municipal Center for Disease Control and Prevention, Guangzhou 510440, China
| | - Y Ma
- Guangzhou Municipal Center for Disease Control and Prevention, Guangzhou 510440, China
| | - L Cao
- Guangzhou Municipal Center for Disease Control and Prevention, Guangzhou 510440, China
| | - K B Li
- Guangzhou Municipal Center for Disease Control and Prevention, Guangzhou 510440, China
| | - T G Li
- Guangzhou Municipal Center for Disease Control and Prevention, Guangzhou 510440, China
| | - Z B Zhang
- Guangzhou Municipal Center for Disease Control and Prevention, Guangzhou 510440, China
| | - Z C Yang
- Guangzhou Municipal Center for Disease Control and Prevention, Guangzhou 510440, China
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Li TG, Wang M. [Be alert to superposed effect of seasonal influenza while fighting against novel coronavirus pneumonia]. Zhonghua Yu Fang Yi Xue Za Zhi 2020; 54:E002. [PMID: 32040985 DOI: 10.3760/cma.j.issn.0253-9624.2020.0002] [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: 06/10/2023]
Abstract
The novel coronavirus pneumonia (NCP) continues to spread throughout the country, and the prevention and control of the epidemic has entered a critical period. However, southern cities with severe outbreaks are about to enter the seasonal influenza season. We should strengthen the epidemiological investigation, optimize the laboratory testing strategy, take effective measures, strengthen the prevention and control of influenza epidemic, and minimize the interference to the new coronavirus epidemic.
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Affiliation(s)
- T G Li
- Guagnzhou Chest Hospital, Guangzhou 510095, China
| | - M Wang
- Guangzhou Center for Disease Control and Prevention, Guangzhou 510045, China
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Wu JY, Lau EH, Yuan J, Lu ML, Xie CJ, Li KB, Ma XW, Chen JD, Liu YH, Cao L, Li MX, Di B, Liu YF, Lu JY, Li TG, Xiao XC, Wang DH, Yang ZC, Lu JH. Transmission risk of avian influenza virus along poultry supply chains in Guangdong, China. J Infect 2019; 79:43-48. [PMID: 31100365 DOI: 10.1016/j.jinf.2019.05.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/27/2018] [Revised: 04/02/2019] [Accepted: 05/10/2019] [Indexed: 01/09/2023]
Abstract
OBJECTIVES Avian influenza viruses (AIVs) poise significant risk to human health and the poultry industry. We evaluated the transmission risk along the poultry supply chain. METHODS During October 2015 and July 2016, four rounds of cross-sectional surveys were performed to characterize AIV spread in farms, transport vehicles, slaughterhouses, wholesale and retail live poultry markets (LPMs). Poultry cloacal and oral swabs, environmental swabs, bioaerosol samples and human sera were collected. Poultry and environmental samples were tested for AIVs by rRT-PCR, further subtyped by next generation sequencing. Previous human H9N2 infections were identified by hemagglutination inhibition and microneutralization tests. Logistic regression was fitted to compare AIV transmission risk in different settings. RESULTS AIVs was detected in 23.9% (424/1771) of the poultry and environmental samples. AIV detection rates in farms, transport vehicles, wholesale and retail LPMs were 4.5%, 11.1%, 30.3% and 51.2%, respectively. 5.2%, 8.3% and 12.8% of the poultry workers were seropositive in farms, wholesale and retail LPMs, respectively. The regression analysis showed that virus detection and transmission risk to human increased progressively along the poultry supply chain. CONCLUSIONS Strengthening control measures at every level along the poultry supply chain, using a one health approach, is crucial to control AIV circulation.
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Affiliation(s)
- Jian-Yong Wu
- School of Public Health, Sun Yat-Sen University, Guangzhou, China.
| | - Eric Hy Lau
- School of Public Health, The University of Hong Kong, Hong Kong SAR, China.
| | - Jun Yuan
- Guangzhou Center for Disease Control and Prevention, Guangzhou, China.
| | - Ming-Ling Lu
- School of Public Health, Sun Yat-Sen University, Guangzhou, China.
| | - Chao-Jun Xie
- Guangzhou Center for Disease Control and Prevention, Guangzhou, China.
| | - Kui-Biao Li
- Guangzhou Center for Disease Control and Prevention, Guangzhou, China.
| | - Xiao-Wei Ma
- Guangzhou Center for Disease Control and Prevention, Guangzhou, China.
| | - Jian-Dong Chen
- Guangzhou Center for Disease Control and Prevention, Guangzhou, China.
| | - Yan-Hui Liu
- Guangzhou Center for Disease Control and Prevention, Guangzhou, China.
| | - Lan Cao
- Guangzhou Center for Disease Control and Prevention, Guangzhou, China.
| | - Mei-Xia Li
- Guangzhou Center for Disease Control and Prevention, Guangzhou, China.
| | - Biao Di
- Guangzhou Center for Disease Control and Prevention, Guangzhou, China.
| | - Yu-Fei Liu
- Guangzhou Center for Disease Control and Prevention, Guangzhou, China.
| | - Jian-Yun Lu
- Guangzhou Center for Disease Control and Prevention, Guangzhou, China.
| | - Tie-Gang Li
- Guangzhou Center for Disease Control and Prevention, Guangzhou, China.
| | - Xin-Cai Xiao
- Guangzhou Center for Disease Control and Prevention, Guangzhou, China.
| | - Da-Hu Wang
- Guangzhou Center for Disease Control and Prevention, Guangzhou, China.
| | - Zhi-Cong Yang
- Guangzhou Center for Disease Control and Prevention, Guangzhou, China.
| | - Jia-Hai Lu
- School of Public Health, Sun Yat-Sen University, Guangzhou, China; One Health Center of Excellence for Research and Training, Guangzhou, China; Key Laboratory for Tropical Disease Control, Ministry of Education, Guangzhou, China.
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Lu JY, Chen ZQ, Liu YH, Liu WH, Ma Y, Li TG, Zhang ZB, Yang ZC. Effect of meteorological factors on scarlet fever incidence in Guangzhou City, Southern China, 2006-2017. Sci Total Environ 2019; 663:227-235. [PMID: 30711589 DOI: 10.1016/j.scitotenv.2019.01.318] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/20/2018] [Revised: 12/19/2018] [Accepted: 01/24/2019] [Indexed: 06/09/2023]
Abstract
OBJECTIVE To explore the relationship between meteorological factors and scarlet fever incidence from 2006 to 2017 in Guangzhou, the largest subtropical city of Southern China, and assist public health prevention and control measures. METHODS Data for weekly scarlet fever incidence and meteorological variables from 2006 to 2017 in Guangzhou were collected from the National Notifiable Disease Report System (NNDRS) and the Guangzhou Meteorological Bureau (GZMB). Distributed lag nonlinear models (DLNMs) were conducted to estimate the effect of meteorological factors on weekly scarlet fever incidence in Guangzhou. RESULTS We observed nonlinear effects of temperature, relative humidity, and wind velocity. The risk was the highest when the weekly mean temperature was 31 °C during lag week 14, yielding a relative risk (RR) of 1.48 (95% CI: 1.01-2.17). When relative humidity was 43.5% during lag week 0, the RR was 1.49 (95% CI: 1.04-2.12); the highest RR (1.55, 95% CI: 1.20-1.99) was reached when relative humidity was 93.5% during lag week 20. When wind velocity was 4.4 m/s during lag week 13, the RR was highest at 3.41 (95% CI: 1.57-7.44). Positive correlations were observed among weekly temperature ranges and atmospheric pressure with scarlet fever incidence, while a negative correlation was detected with aggregate rainfall. The cumulative extreme effect of meteorological variables on scarlet fever incidence was statistically significant, except for the high effect of wind velocity. CONCLUSION Weekly mean temperature, relative humidity, and wind velocity had double-trough effects on scarlet fever incidence; high weekly temperature range, high atmospheric pressure, and low aggregate rainfall were risk factors for scarlet fever morbidity. Our findings provided preliminary, but fundamental, information that may be useful for a better understanding of epidemic trends of scarlet fever and for developing an early warning system. Laboratory surveillance for scarlet fever should be strengthened in the future.
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Affiliation(s)
- Jian-Yun Lu
- Department of Infectious Disease Control and Prevention, Guangzhou Center For Disease Control and Prevention, Baiyun District Qi De Road, Guangzhou, Guangdong Province 510440, China
| | - Zong-Qiu Chen
- Department of Infectious Disease Control and Prevention, Guangzhou Center For Disease Control and Prevention, Baiyun District Qi De Road, Guangzhou, Guangdong Province 510440, China
| | - Yan-Hui Liu
- Department of Infectious Disease Control and Prevention, Guangzhou Center For Disease Control and Prevention, Baiyun District Qi De Road, Guangzhou, Guangdong Province 510440, China
| | - Wen-Hui Liu
- Department of Infectious Disease Control and Prevention, Guangzhou Center For Disease Control and Prevention, Baiyun District Qi De Road, Guangzhou, Guangdong Province 510440, China
| | - Yu Ma
- Department of Infectious Disease Control and Prevention, Guangzhou Center For Disease Control and Prevention, Baiyun District Qi De Road, Guangzhou, Guangdong Province 510440, China
| | - Tie-Gang Li
- Department of Infectious Disease Control and Prevention, Guangzhou Center For Disease Control and Prevention, Baiyun District Qi De Road, Guangzhou, Guangdong Province 510440, China.
| | - Zhou-Bin Zhang
- Guangzhou Center For Disease Control and Prevention, Baiyun District Qi De Road, Guangzhou, Guangdong Province 510440, China
| | - Zhi-Cong Yang
- Guangzhou Center For Disease Control and Prevention, Baiyun District Qi De Road, Guangzhou, Guangdong Province 510440, China
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Ma Y, Zhang ZB, Cao L, Lu JY, Li KB, Su WZ, Li TG, Yang ZC, Wang M. [A case of human infection with highly pathogenic avian influenza A (H7N9) virus through poultry processing without protection measure]. Zhonghua Liu Xing Bing Xue Za Zhi 2018; 39:799-804. [PMID: 29936750 DOI: 10.3760/cma.j.issn.0254-6450.2018.06.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Objective: To investigate the infection pattern and etiological characteristics of a case of human infection with highly pathogenic avian influenza A (H7N9) virus and provide evidence for the prevention and control of human infection with highly pathogenic avian influenza virus. Methods: Epidemiological investigation was conducted to explore the case's exposure history, infection route and disease progression. Samples collected from the patient, environments and poultry were tested by using real time reverse transcriptase-polymerase chain reaction (RT-PCR). Virus isolation, genome sequencing and phylogenetic analysis were conducted for positive samples. Results: The case had no live poultry contact history, but had a history of pulled chicken processing without taking protection measure in an unventilated kitchen before the onset. Samples collected from the patient's lower respiratory tract, the remaining frozen chicken meat and the live poultry market were all influenza A (H7N9) virus positive. The isolated viruses from these positive samples were highly homogenous. An insertion which lead to the addition of multiple basic amino acid residues (PEVPKRKRTAR/GL) was found at the HA cleavage site, suggesting that this virus might be highly pathogenic. Conclusions: Live poultry processing without protection measure is an important infection mode of "poultry to human" transmission of avian influenza viruses. Due to the limitation of protection measures in live poultry markets in Guangzhou, it is necessary to promote the standardized large scale poultry farming, the complete restriction of live poultry sales and centralized poultry slaughtering as well as ice fresh sale.
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Affiliation(s)
- Y Ma
- Guangzhou Municipal Center for Disease Control and Prevention, Guangzhou 510440, China
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Liu WH, Ma Y, Lu JY, Yan HC, Zhou JH, Liao XL, Zeng JH, Lin WQ, Wu D, Zhang ZB, Yang ZC, Chen ZQ, Chen JD, Li TG. [Willingness and influencing factors related to "centralized slaughtering, fresh poultry listing and marketing" strategy among the household chefs in Guangzhou]. Zhonghua Liu Xing Bing Xue Za Zhi 2018; 39:204-207. [PMID: 29495206 DOI: 10.3760/cma.j.issn.0254-6450.2018.02.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Objective: To study the willingness and influence factors related to "centralized slaughtering, fresh poultry listing and marketing" strategy, among the household chefs, and provide reference for government to adjust and optimize the strategy on avian influenza prevention. Methods: According to the geographical characteristics and regional functions, 6 'monitoring stations' were selected from 12 residential districts of Guangzhou, respectively. Another 21 meat markets which selling live poultry, were selected in each station and 5 household chefs of each market were invited to attend a face to face interview. Basic information, personal cognitive, willingness and influencing factors to the policy were under study. Univariate and multivariate logistic regression methods were used. Results: A total of 664 household chefs underwent the survey and results showed that the rate of support to the "centralized slaughtering, fresh poultry listing and marketing" strategy was 44.6% (296/664). Results from the multi-factor logistic regression showed that those household chefs who were males (OR=1.618, 95% CI: 1.156-2.264, P=0.005), having received higher education (OR=1.814, 95% CI: 1.296-2.539, P=0.001), or believing that the existence of live poultry stalls was related to the transmission of avian influenza (OR=1.918, 95% CI: 1.341-2.743, P<0.001) were factors at higher risk. These household chefs also intended to avoid the use of live poultry stalls (OR=1.666, 95%CI: 1.203-2.309, P=0.002) and accept the "centralized slaughtering, fresh poultry listing and marketing" strategy. Conclusion: Detailed study on this subject and, setting up pilot project in some areas as well as prioritizing the education programs for household chefs seemed helpful to the implementation of the 'freezing-fresh poultry' policy.
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Affiliation(s)
- W H Liu
- Department of Infectious Disease Control and Prevention Guangzhou Center for Disease Control and Prevention, Guangzhou 510000, China
| | - Y Ma
- Department of Infectious Disease Control and Prevention Guangzhou Center for Disease Control and Prevention, Guangzhou 510000, China
| | - J Y Lu
- Department of Infectious Disease Control and Prevention Guangzhou Center for Disease Control and Prevention, Guangzhou 510000, China
| | - H C Yan
- Department of Disease Surveillance Guangzhou Military Area Command Center for Disease Control and Prevention, Guangzhou 510000, China
| | - J H Zhou
- Department of Infectious Disease Control and Prevention Guangzhou Center for Disease Control and Prevention, Guangzhou 510000, China
| | - X L Liao
- Department of Infectious Disease Control and Prevention Guangzhou Center for Disease Control and Prevention, Guangzhou 510000, China
| | - J H Zeng
- Department of Infectious Disease Control and Prevention Guangzhou Center for Disease Control and Prevention, Guangzhou 510000, China
| | - W Q Lin
- Department of Infectious Disease Control and Prevention Guangzhou Center for Disease Control and Prevention, Guangzhou 510000, China
| | - D Wu
- Department of Infectious Disease Control and Prevention Guangzhou Center for Disease Control and Prevention, Guangzhou 510000, China
| | - Z B Zhang
- Department of Infectious Disease Control and Prevention Guangzhou Center for Disease Control and Prevention, Guangzhou 510000, China
| | - Z C Yang
- Department of Infectious Disease Control and Prevention Guangzhou Center for Disease Control and Prevention, Guangzhou 510000, China
| | - Z Q Chen
- Department of Infectious Disease Control and Prevention Guangzhou Center for Disease Control and Prevention, Guangzhou 510000, China
| | - J D Chen
- Department of Infectious Disease Control and Prevention Guangzhou Center for Disease Control and Prevention, Guangzhou 510000, China
| | - T G Li
- Department of Infectious Disease Control and Prevention Guangzhou Center for Disease Control and Prevention, Guangzhou 510000, China
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Cao WR, Guo LY, Du ZJ, Das A, Saren G, Jiang MY, Dunlap CA, Rooney AP, Yu XK, Li TG. Chengkuizengella sediminis gen. nov. sp. nov., isolated from sediment. Int J Syst Evol Microbiol 2017; 67:2672-2678. [PMID: 28786783 DOI: 10.1099/ijsem.0.002006] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Abstract
A Gram-stain-positive, aerobic, motile, endospore-forming bacterium, designated strain J15A17T, was isolated from sediment of the South China Sea. The strain was oxidase-positive and catalase-negative. Optimal growth occurred at 33 °C, pH 7.5 and in the presence of 3 % (w/v) NaCl. On the basis of 16S rRNA gene sequence analysis, the strain showed closest similarity (92.8 %) to Paenibacillus puldeungensis strain CAU 9324T. Phylogenetic analysis based on 16S rRNA gene sequences showed that the isolate forms a separate branch within the family Paenibacillaceae, with the genus Cohnella as the most closely related genus. The DNA G+C content of strain J15A17T was 37.4 mol%. The strain contained MK-7 as the sole respiratory quinone; anteiso-C15 : 0 and iso-C16 : 0 were the major cellular fatty acids; and its polar lipid pattern consisted of diphosphatidylglycerol, phosphatidylglycerol, phosphatidylethanolamine, glycolipid and four unidentified phospholipids. The strain displayed the peptidoglycan type A4α l-Lys-d-Asp in the cell wall. Phylogenetic, physiological, biochemical and morphological differences between strain J15A17T and its closest relatives in the genera Cohnella, Fontibacillus and Paenibacillus suggest that strain J15A17T (=KCTC 33759T=MCCC 1H00137T) represents the type strain of a novel species in a new genus within the family Paenibacillaceae, Chengkuizengella sediminis gen. nov. sp. nov.
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Affiliation(s)
- Wen-Rui Cao
- Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, PR China.,Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266061, PR China.,Key Laboratory of Marine Sedimentology and Environmental Geology, First Institute of Oceanography, SOA, Qingdao 266061, PR China
| | - Ling-Yun Guo
- College of Marine Science, Shandong University at Weihai, Weihai 264209, PR China
| | - Zong-Jun Du
- College of Marine Science, Shandong University at Weihai, Weihai 264209, PR China
| | - Anindita Das
- Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, PR China.,MACS-Agharkar Research Institute, G.G, Agarkar Road, Pune 411004, Maharashtra, India.,Council of Scientific and Industrial Research (CSIR), National Institute of Oceanography, Dona Paula, Panaji 403004, India
| | - Gaowa Saren
- Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, PR China
| | - Ming-Yu Jiang
- Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, PR China
| | - Christopher A Dunlap
- US Department of Agriculture, Crop Bioprotection Research Unit, National Center for Agricultural Utilization Research, Agricultural Research Service, Peoria, IL 61604, USA
| | - Alejandro P Rooney
- US Department of Agriculture, Crop Bioprotection Research Unit, National Center for Agricultural Utilization Research, Agricultural Research Service, Peoria, IL 61604, USA
| | - Xin-Ke Yu
- Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, PR China
| | - Tie-Gang Li
- Key Laboratory of Marine Sedimentology and Environmental Geology, First Institute of Oceanography, SOA, Qingdao 266061, PR China.,Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266061, PR China
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Cao WR, Guo LY, Du ZJ, Das A, Saren G, Jiang MY, Dunlap CA, Rooney AP, Yu XK, Li TG. Corrigendum: Paraliobacillus sediminis sp. nov., isolated from East China sea sediment. Int J Syst Evol Microbiol 2017; 67:3135. [DOI: 10.1099/ijsem.0.002267] [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: 11/18/2022] Open
Affiliation(s)
- Wen-Rui Cao
- Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, PR China
- Key Laboratory of Marine Sedimentology and Environmental Geology, First Institute of Oceanography, SOA, Qingdao 266061, PR China
- Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266061, PR China
| | - Ling-Yun Guo
- College of Marine Science, Shandong University at Weihai, Weihai 264209, PR China
| | - Zong-Jun Du
- College of Marine Science, Shandong University at Weihai, Weihai 264209, PR China
| | - Anindita Das
- MACS-Agharkar Research Institute, G.G. Agarkar Road, Pune 411004, Maharashtra, India
- Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, PR China
| | - Gaowa Saren
- Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, PR China
| | - Ming-Yu Jiang
- Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, PR China
| | - Christopher A. Dunlap
- Crop Bioprotection Research Unit, National Center for Agricultural Utilization Research, Agricultural Research Service, US Department of Agriculture, Peoria, IL 61604, USA
| | - Alejandro P. Rooney
- Crop Bioprotection Research Unit, National Center for Agricultural Utilization Research, Agricultural Research Service, US Department of Agriculture, Peoria, IL 61604, USA
| | - Xin-Ke Yu
- Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, PR China
| | - Tie-Gang Li
- Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266061, PR China
- Key Laboratory of Marine Sedimentology and Environmental Geology, First Institute of Oceanography, SOA, Qingdao 266061, PR China
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15
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Cao WR, Guo LY, Du ZJ, Das A, Saren G, Jiang MY, Dunlap CA, Rooney AP, Yu XK, Li TG. Paraliobacillus sediminis sp. nov., isolated from East China sea sediment. Int J Syst Evol Microbiol 2017; 67:1577-1581. [DOI: 10.1099/ijsem.0.001767] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022] Open
Affiliation(s)
- Wen-Rui Cao
- Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266061, PR China
- Key Laboratory of Marine Sedimentology and Environmental Geology, First Institute of Oceanography, SOA, Qingdao 266061, PR China
- Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, PR China
| | - Ling-Yun Guo
- College of Marine Science, Shandong University at Weihai, Weihai 264209, PR China
| | - Zong-Jun Du
- College of Marine Science, Shandong University at Weihai, Weihai 264209, PR China
| | - Anindita Das
- Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, PR China
- MACS-Agharkar Research Institute, G.G. Agarkar Road, Pune 411004, Maharashtra, India
| | - Gaowa Saren
- Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, PR China
| | - Ming-Yu Jiang
- Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, PR China
| | - Christopher A Dunlap
- Crop Bioprotection Research Unit, National Center for Agricultural Utilization Research, Agricultural Research Service, US Department of Agriculture, Peoria, IL 61604, USA
| | - Alejandro P Rooney
- Crop Bioprotection Research Unit, National Center for Agricultural Utilization Research, Agricultural Research Service, US Department of Agriculture, Peoria, IL 61604, USA
| | - Xin-Ke Yu
- Institute of Oceanology, Chinese Academy of Sciences, Qingdao 266071, PR China
| | - Tie-Gang Li
- Key Laboratory of Marine Sedimentology and Environmental Geology, First Institute of Oceanography, SOA, Qingdao 266061, PR China
- Laboratory for Marine Geology, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266061, PR China
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Tang F, Chen Y, Li TG, He JM, Abliz Z, Huang G, Wang XH. A quick and effective multivariate statistical strategy for imaging mass spectrometry. CHINESE CHEM LETT 2014. [DOI: 10.1016/j.cclet.2014.04.028] [Citation(s) in RCA: 3] [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] [Indexed: 01/15/2023]
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17
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Xu Z, Li T, Yu X, Li A, Tang Z, Choi J, Nan Q. Sediment provenance and evolution of the East Asian winter monsoon since 700 ka recorded by major elements in the West Philippine Sea. Chin Sci Bull 2012. [DOI: 10.1007/s11434-012-5538-8] [Citation(s) in RCA: 6] [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] [Indexed: 11/24/2022]
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18
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Zhao J, Li T, Li J, Hu B. Paleoproductivity variations in the southern Okinawa Trough since the middle Holocene: Calcareous nannofossil records. ACTA ACUST UNITED AC 2012. [DOI: 10.1007/s11434-012-5276-y] [Citation(s) in RCA: 4] [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] [Indexed: 10/28/2022]
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19
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Liu KJ, Qi HZ, Yao HL, Lei SL, Lei ZD, Li TG, Zhao H. An updated meta-analysis of the p53 codon 72 polymorphism and gastric cancer risk. Mol Biol Rep 2012; 39:8265-75. [PMID: 22707142 DOI: 10.1007/s11033-012-1674-0] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/05/2012] [Accepted: 05/29/2012] [Indexed: 12/15/2022]
Abstract
To investigate the association between p53 codon 72 polymorphisms and gastric cancer risk, a meta-analysis published in 2007 was updated with new data. Relevant literature was retrieved by searching PubMed and statistical analysis conducted using Review Manager software. Twenty-eight case-control studies were included in this meta-analysis, with 6,859 cases and 9,277 controls. The pooled results for all included studies showed that patients with gastric cancer had a borderline lower frequency of the Arg/Arg phenotype (odds ratio (OR) = 0.91, 95 % CI = 0.83-1.00, p = 0.04). When stratified for race, the difference in Arg/Arg frequency was significant among Asians (OR = 0.87, 95 % CI = 0.78-0.97, p = 0.01). On stratifying the various studies we found that, among Asians: (i) patients with cardial gastric cancer had a significantly higher frequency of the Pro/Pro genotype (OR = 1.35, 95 % CI = 1.03-1.77, p = 0.04) than those with non-cardial gastric cancer; (ii) patients with advanced (stage III/IV) gastric cancer had a significantly higher frequency of Arg/Arg (OR = 1.30, 95 % CI = 1.06-1.61, p = 0.01) than those with early (stage I/II) cancer; and (iii) patients with metastasis had a significantly higher frequency of Pro/Pro (OR = 3.31, 95 % CI = 1.31-8.41) than those without metastasis. Our study suggests that, among Asians, the p53 codon 72 Arg/Arg genotype is associated with a modestly decreased risk of gastric cancer, and that this difference in genotype distribution may be associated with cancer stage, location, differentiation and metastasis.
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Affiliation(s)
- Kui-Jie Liu
- Department of General Surgery, The Second Xiangya Hospital, Central South University, 139 Middle Renmin Road, Changsha, China
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Yang Z, Wu X, Li T, Li M, Zhong Y, Liu Y, Deng Z, DI B, Huang C, Liang H, Wang M. Epidemiological survey and analysis on an outbreak of gastroenteritis due to water contamination. Biomed Environ Sci 2011; 24:275-283. [PMID: 21784314 DOI: 10.3967/0895-3988.2011.03.011] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Received: 12/09/2010] [Accepted: 05/18/2011] [Indexed: 05/31/2023]
Abstract
OBJECTIVE To document the investigation and control of an outbreak of gastroenteritis in City G, South China, and provide a reference for preventing future outbreaks. METHODS An ambispective cohort study was designed. Attack rate (AR) and relative risks (RR) were calculated to identify the causes of gastroenteritis. Investigations using questionnaires included personal interviews with patients and doctors, reviews of medical records, laboratory examinations of fecal specimens and continuous hygiene monitoring of water samples from the waterworks. RESULTS Overall, 427/71534 (AR=5.97%) cases were identified between October 31 and November 12 2010. Geographic distribution was highly localized, with 80% of cases occurring in the areas supplied by waterworks-A. Consumption of water provided solely by waterworks-A was found to be associated with illness (RR=8.20, 95 CI%:6.12-10.99) compared with that from waterworks-B. Microbiological analyses confirmed the presence of Norovirus in six of eight fecal samples from symptomatic patients, two water samples from waterworks-A and two sewage samples. After taking effective measures, the hygienic indices of waterworks-A met health criteria again on November 9 and no cases were reported 3 days later. CONCLUSION The outbreak reported here was caused by drinking tap water contaminated with sewage at the source. Early identification of possible contamination sources and awareness of changes that might negatively impact water quality are important preventive measures to protect public health.
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Affiliation(s)
- ZhiCong Yang
- Guangzhou Center for Disease Control and Prevention, Guangdong, China.
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Lin CS, Zhao ZX, Zhang XH, Guo XY, Li TG, Chong YT, Gao ZL. [Status of hepatitis C in Guangzhou from 2005 to 2008]. Zhonghua Gan Zang Bing Za Zhi 2010; 18:63-4. [PMID: 20128974 DOI: 10.3760/cma.j.issn.1007-3418.2010.01.016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Chao-Shuang Lin
- Department of Infectious Diseases, the Third Affiliated Hospital, Sun Yat-sen University, Guangzhou 510630, China
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Bai ZJ, Wu XW, Wu YJ, Li MX, Xu Y, Xie HP, Chen YY, Jian LY, Liu YF, Li TG, Yang ZC, Wang M, DI B. [Relation between clinical detection rates of the novel influenza virus A/H1N1 RNA in confirmed patients in Guangzhou and the disease course]. Nan Fang Yi Ke Da Xue Xue Bao 2009; 29:2313-2315. [PMID: 19923092] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
OBJECTIVE To study the relation of the detection rates of the novel influenza virus A/H1N1 RNA in clinically confirmed patients in the 2009 pandemic with the age distribution of the patients and the disease course. METHODS A total of 151 clinical patients with H1N1 infection were enrolled in this study, from whom 833 dynamic throat swab samples were obtained for detecting the H1N1 RNA using real-time PCR. A statistical analysis of the age distribution was performed among the patients with different disease courses. Chi-square for trend test was used to study the correlation between the detection rates of H1N1 RNA and the time of disease onset. RESULTS The majority of patients were young with their ages ranging from 10 to 20 years (57.26%) and 20 to 30 years (22.18%). Chi-square for trend test revealed that the positivity rates of the throat swabs in the patients decreased with the prolongation of the disease course (chi(2)=9.784, P=0.002). CONCLUSION Most of the H1N1 patients are young within the age range of 10-30 years, and the longest disease course can exceed 10 days. The positivity rates of throat swabs from the H1N1 patients decreases with the prolongation of the disease course.
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Affiliation(s)
- Zhi-Jun Bai
- Guangzhou Center for Disease Control and Prevention, Guangzhou 510080, China.
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Zhai B, Li T, Chang F, Cao Q. Vast laminated diatom mat deposits from the west low-latitude Pacific Ocean in the last glacial period. Sci Bull (Beijing) 2009. [DOI: 10.1007/s11434-009-0447-1] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Yang ZC, Li TG, Liu YF, Wu XW, Yuan J, Xie CJ, Li KB, Jiang LY, Chen YY, Mao XW, Li HL, Zhan LH, Xiao XL, Liu JP, Shen JC, Cai WF, Wang M. [Epidemiological characteristic of first case of locally identified A/H1N1 secondary cases caused by imported source of infection in China]. Zhonghua Liu Xing Bing Xue Za Zhi 2009; 30:684-686. [PMID: 19957590] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
OBJECTIVE To study the first locally identifed A/H1N1 secondary cases outbreak in China. METHODS Interview and field investigation were integrated to describe the whole process of transmission on each case and to illustrate the relationships between the onset of the disease and the retated factors. RESULTS Two contact persons appearanced fever and whose throat swabs were tested positive to H1N1 viral nucleic acid. The two had a history of contact in a short distance with the initial imported case without any protective measure in the poor air ventilation. The patients clinical situation was slight. The incubation was between 37 hours and 57 hours. No other new case was found after intervention as isolation and antisepsis were taken. CONCLUSION This event was proved to be an outbreak of local A/H1N1 secondary cases caused by the imported case. The main mode of transmission was personal contact in a short distance without protection, through air and droplet. The locus with poor air ventilation was high risk place. Contact persons should be observed seven days and tested continuously. Infectivity and pathogenicity of the A/H1N1 virus were limited and appeared weakened by generations. Patient's condition was related with persistence and frequency of contact with the infection sources. Enhancing management of contact persons, health education, early diagnose, early treatment and early insulation were effective measures of controling and prenventing the spread A/H1N1.
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Affiliation(s)
- Zhi-Cong Yang
- Guangzhou Center for Disease Control and Prevention, Guangzhou, China
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Li C, Jiang B, Li A, Li T, Jiang F. Sedimentation rates and provenance analysis in the Southwestern Okinawa Trough since the mid-Holocene. Sci Bull (Beijing) 2009. [DOI: 10.1007/s11434-009-0010-0] [Citation(s) in RCA: 4] [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] [Indexed: 11/29/2022]
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Li DL, Li XM, Li TG, Dang HY, Wang BG. Dioxopiperazine Alkaloids Produced by the Marine Mangrove Derived Endophytic FungusEurotium rubrum. Helv Chim Acta 2008. [DOI: 10.1002/hlca.200890202] [Citation(s) in RCA: 59] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
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Zhang XY, Zhang YJ, Chen XL, Qin QL, Zhao DL, Li TG, Dang HY, Zhang YZ. Myroides profundisp. nov., isolated from deep-sea sediment of the southern Okinawa Trough. FEMS Microbiol Lett 2008; 287:108-12. [DOI: 10.1111/j.1574-6968.2008.01299.x] [Citation(s) in RCA: 36] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Wang M, Yuan J, Li TG, Wang DD, Hu ZG, Liu JP, Zhang M, Liang YJ, Wu DW. [Prevalence and risk factors for anxiety among inhabitants in the relief centers after the 5 *12 Sichuan earthquake]. Zhonghua Liu Xing Bing Xue Za Zhi 2008; 29:887-890. [PMID: 19173852] [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: 05/27/2023]
Abstract
OBJECTIVE To investigate the prevalence and risk factors for anxiety among inhabitants in the relief centers one month after the 5 * 12 Sichuan earthquake and to formulate intervention strategies. METHODS A total of 402 tent inhabitants aged > or = 18 years were randomly selected from 13 relief centers of 4 townships in Jiangyou city. Data were collected by Self-rating Anxiety Scale (SAS) and risk factor questionnaires. RESULTS The prevalence of anxiety among inhabitants in the relief centers was 22.1% (95% CI: 18.2%-26.6% ) (89/402). In single factor analysis, female, aged > or = 40 years, family per-capita monthly income of < 600 Yuan, education level of less than junior high school, inconvenient living conditions, history of chronic diseases, limited living space in tents, shortage of goods, and sex life being interrupted etc might increase anxiety. In multi-factor analysis, female (OR = 2.921), inconvenient living conditions (OR = 2.475), history of chronic diseases (OR = 3.997), and limited living space in tents (OR = 2.982) were the risk factors for anxiety. CONCLUSION Inhabitants in the relief centers exhibited higher prevalence of anxiety as compared with the general population. Measures to improve the living conditions of the relief centers, including guarantee of water, electricity and material supply, sewage treatment, living space and privacy, and early psychological interventions were recommended for prevention and relief of anxiety.
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Affiliation(s)
- Ming Wang
- Guangzhou Center for Disease Control and Prevention, Guangzhou 510080, China
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Yuan J, Wang M, Li TG, Wang DD, Hu ZG, Liu JP, Zhang M, Wu DW, Liang YJ. [Investigation of anxiety among 402 tent inhabitants in Jiangyou city after the 5.12 Sichuan earthquake]. Zhonghua Yu Fang Yi Xue Za Zhi 2008; 42:628-630. [PMID: 19175169] [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: 05/27/2023]
Abstract
OBJECTIVE To investigate the prevalence of anxiety among tent inhabitants one month after the 5.12 Sichuan earthquake as to formulating intervention strategies. METHODS A stratified random sampling method was adopted. Inclusion criteria were: inhabitants, aged above 18 years old, living in tent in 13 relief centers of 4 townships in Jiangyou city; and only one person from each tent/family could be enrolled in this study. A total of 402 subjects were interviewed with Self-rating Anxiety Scale (SAS). SAS scores were compared between different groups and symptomatic differences between anxiety and non-anxiety victims were analyzed by stepwise multiple regression analysis. RESULTS The prevalence of anxiety among tent inhabitants was 22.1% (89/402). A higher rate of anxiety was observed in senior age group than in younger age group (F = 7.03, P < 0.01). Age with > or = 50 years (42.85 +/- 11.15), 40-49 years (41.57 +/- 10.30), 30-39 years (37.99 +/- 9.66), 18-29 years (36.62 +/- 9.92). Female (43.13 +/- 10.45) had a high rate of anxiety than male (36.80 +/- 9.88) (t = -6.09, P < 0.01). The most common symptoms were anxiety (79.4%, 319/402), fatigue (68.2%, 274/402), phobia (65.7%, 264/402), sleep disorders (65.4%, 263/402), unfortunate feelings (65.2% , 262/402), akathisia (59.7%, 240/402), and fear (58.2%, 234/402). Stepwise multiple regression analysis revealed that insane feelings(t = 5.37, P < 0.01), trembling(t = 5.33, P < 0.01), dyspnea (t = 4.28, P < 0.01), unfortunate feelings (t = 3.87, P < 0.01), headache(t = 3.85, P < 0.01), facial flushing (t = 3.48, P <0.01), fatigue (t = 3.27, P < 0.01), dizziness (t = 2.79, P < 0.01), frequent micturition (t = 2.41, P < 0.05), and akathisia (t = 2.31, P < 0.05) were more frequently experienced in the anxiety victims than non-anxiety victims. CONCLUSION Tent inhabitants in the post-earthquake relief centers exhibit a higher prevalence of anxiety as compared with the general population. Much attention should be paid to elderly, female, and those who have developed specific symptoms such as insane feelings, trembling, dyspnea, etc. Meanwhile, some intervention measures should be timely taken.
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Affiliation(s)
- Jun Yuan
- Guangzhou Center for Disease Control and Prevention, Guangzhou 510080, China
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Li DL, Li XM, Li TG, Dang HY, Proksch P, Wang BG. Benzaldehyde Derivatives from Eurotium rubrum, an Endophytic Fungus Derived from the Mangrove Plant Hibiscus tiliaceus. Chem Pharm Bull (Tokyo) 2008; 56:1282-5. [DOI: 10.1248/cpb.56.1282] [Citation(s) in RCA: 60] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- Dong-Li Li
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences
- Graduate School of Chinese Academy of Sciences
| | - Xiao-Ming Li
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences
| | - Tie-Gang Li
- Key Laboratory of Marine Geology and Environment, Institute of Oceanology, Chinese Academy of Sciences
| | - Hong-Yue Dang
- Key Laboratory of Marine Geology and Environment, Institute of Oceanology, Chinese Academy of Sciences
| | - Peter Proksch
- Institut für Pharmazeutische Biologie und Biotechnologie, Heinrich-Heine-Universität Düsseldorf
| | - Bin-Gui Wang
- Key Laboratory of Experimental Marine Biology, Institute of Oceanology, Chinese Academy of Sciences
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Qin QL, Zhao DL, Wang J, Chen XL, Dang HY, Li TG, Zhang YZ, Gao PJ. Wangia profunda gen. nov., sp. nov., a novel marine bacterium of the family Flavobacteriaceae isolated from southern Okinawa Trough deep-sea sediment. FEMS Microbiol Lett 2007; 271:53-8. [PMID: 17391365 DOI: 10.1111/j.1574-6968.2007.00694.x] [Citation(s) in RCA: 50] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
Abstract
An orange-pigmented, Gram-negative, nonmotile, strictly aerobic and oxidase- and catalase-positive bacterium (SM-A87(T)) was isolated from the deep-sea sediment of the southern Okinawa Trough area. The main fatty acids were i15 : 0, i17 : 0 3OH, i15 : 1 G, i17 : 1 omega 9c, 15 : 0, i15 : 0 3OH and summed feature 3 (comprising i-15 : 0 2OH and/or 16 : 1 omega 7c). MK-6 was the predominant respiratory quinone. DNA G+C content was 35.8 mol%. Flexirubin-type pigments were absent. Phylogenetic analyses based on 16S rRNA gene sequences revealed that strain SM-A87(T) formed a distinct lineage within the family Flavobacteriaceae, with <93% sequence similarity to the nearest strain of genus Salegentibacter. Moreover, strain SM-A87(T) could be distinguished from the nearest phylogenetic neighbors by a number of chemotaxonomic and phenotypic properties. On the basis of polyphasic analyses, it is proposed that strain SM-A87(T) be classified in a novel genus and a new species in the family Flavobacteriaceae, designated Wangia profunda gen. nov., sp. nov. The type strain is SM-A87(T) (CCTCC AB 206139(T)=DSM 18752).
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MESH Headings
- Aerobiosis
- Catalase/biosynthesis
- China
- DNA, Bacterial/chemistry
- DNA, Bacterial/genetics
- Fatty Acids/analysis
- Flavobacteriaceae/chemistry
- Flavobacteriaceae/classification
- Flavobacteriaceae/isolation & purification
- Flavobacteriaceae/physiology
- Genes, rRNA/genetics
- Geologic Sediments/microbiology
- Microscopy, Electron, Scanning
- Molecular Sequence Data
- Oxidoreductases/biosynthesis
- Phenotype
- Phylogeny
- Pigments, Biological/biosynthesis
- Quinones/analysis
- RNA, Bacterial/genetics
- RNA, Ribosomal, 16S/genetics
- Seawater/microbiology
- Sequence Analysis, DNA
- Sequence Homology, Nucleic Acid
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Affiliation(s)
- Qi-Long Qin
- The State Key Lab of Microbial Technology, Marine Biotechnology Research Center, Shandong University, Jinan, China
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Wang M, Di B, Zhou DH, Zheng BJ, Jing H, Lin YP, Liu YF, Wu XW, Qin PZ, Wang YL, Jian LY, Li XZ, Xu JX, Lu EJ, Li TG, Xu J. Food markets with live birds as source of avian influenza. Emerg Infect Dis 2007; 12:1773-5. [PMID: 17283635 PMCID: PMC3372357 DOI: 10.3201/eid1211.060675] [Citation(s) in RCA: 91] [Impact Index Per Article: 5.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022] Open
Abstract
A patient may have been infected with highly pathogenic avian influenza virus H5N1 in Guangzhou, People's Republic of China, at a food market that had live birds. Virus genes were detected in 1 of 79 wire cages for birds at 9 markets. One of 110 persons in the poultry business at markets had neutralizing antibody against H5N1.
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Affiliation(s)
- Ming Wang
- Guangzhou Center for Disease Control and Prevention, Guangzhou, People's Republic of China
| | - Biao Di
- Guangzhou Center for Disease Control and Prevention, Guangzhou, People's Republic of China
| | - Duan-Hua Zhou
- Guangzhou Center for Disease Control and Prevention, Guangzhou, People's Republic of China
| | - Bo-Jian Zheng
- The University of Hong Kong, Hong Kong Special Administrative Region, People's Republic of China
| | - Huaiqi Jing
- National Institute for Communicable Disease Control and Prevention, Beijing, People's Republic of China
| | - Yong-Ping Lin
- The University of Hong Kong, Hong Kong Special Administrative Region, People's Republic of China
| | - Yu-Fei Liu
- Guangzhou Center for Disease Control and Prevention, Guangzhou, People's Republic of China
| | - Xin-Wei Wu
- Guangzhou Center for Disease Control and Prevention, Guangzhou, People's Republic of China
| | - Peng-Zhe Qin
- Guangzhou Center for Disease Control and Prevention, Guangzhou, People's Republic of China
| | - Yu-Lin Wang
- Guangzhou Center for Disease Control and Prevention, Guangzhou, People's Republic of China
| | - Li-Yun Jian
- Guangzhou Center for Disease Control and Prevention, Guangzhou, People's Republic of China
| | - Xiang-Zhong Li
- Guangzhou Center for Disease Control and Prevention, Guangzhou, People's Republic of China
| | - Jian-Xiong Xu
- Guangzhou Center for Disease Control and Prevention, Guangzhou, People's Republic of China
| | - En-Jie Lu
- Guangzhou Center for Disease Control and Prevention, Guangzhou, People's Republic of China
| | - Tie-Gang Li
- Guangzhou Center for Disease Control and Prevention, Guangzhou, People's Republic of China
| | - Jianguo Xu
- State Key Laboratory for Infectious Disease Prevention and Control, Beijing, People's Republic of China
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Abstract
OBJECTIVE To investigate the situation among Chinese patients with regard to infection with multiple strains of Helicobacter pylori. METHODS Biopsy specimens for culture of H. pylori were obtained from gastric antrum, body and fundus of 20 patients during endoscopic investigation of upper gastrointestinal symptoms. H. pylori was identified by culture from one site in 16 and two or more sites in 10 of the 16 patients. Five isolated colonies of six strains of H. pylori from gastric antrum were subcultured and used for further analysis. Antibiotic susceptibility to metronidazole and clarithromycin was determined by disk diffusion test. Protein profiles of isolates were compared by sodium dodecylsulfate-polyacrylamide gel electrophoresis (SDS-PAGE). DNA diversity of the isolates was determined by arbitrarily primed polymerase chain reaction (AP-PCR) fingerprinting. RESULTS Of the 10 patients with multiple isolates, 70% (7/10) exhibited variation in susceptibility to metronidazole and 20% (2/10) to clarithromycin between different sites. In 83% of (5/6) single colonies, no variability was seen in metronidazole and clarithromycin susceptibility; they were either susceptible or resistant. Protein profiles of all isolates by SDS-PAGE were similar. Isolates from different patients produced clearly different AP-PCR fingerprints. In 50% of H. pylori strains isolated from different sites of the stomach, genetic diversity was demonstrated by different AP-PCR fingerprints. In 67% (4/6) strains, five single-colony fingerprints were similar. CONCLUSIONS Genetic variability has been found in H. pylori strains. Individual patients are infected with a single predominant genotype at a single site but can be colonized by multiple strains, and they may show different antibiotic susceptibilities. Individual colonies of the H. pylori population from a single site may not always yield identical DNA fingerprints and antibiotic sensitivities.
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Affiliation(s)
- J Yakoob
- Department of Infectious Diseases, Xiangya Hospital, Hunan Medical University, Changsha, Hunan, P.R. China.
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Li HY, Ran SP, Weng XM, Li TG, Deng XH, Li FT. Relapses in leprosy patients treated with rifampicin plus dapsone after varying periods of dapsone monotherapy. Indian J Lepr 2001; 73:1-10. [PMID: 11326592] [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: 02/19/2023]
Abstract
Leprosy patients treated formerly with dapsone monotherapy followed by combined therapy with rifampicin plus dapsone were surveyed for relapse and rifampicin resistance. The relapse rate was significantly low for the 482 multibacillary (MB) patients receiving > 12 months combined therapy compared with the 49 MB cases receiving < 12 months of combined therapy. The relapse rate was related to the duration of dapsone monotherapy prior to combined therapy. The difference in relapse rate in 247 paucibacillary (PB) patients following > 12 months combined therapy was also of significance, compared with the 66 PB cases who had received < 12 months combined therapy. Five strains of M. leprae isolated from relapsed patients were sensitive to rifampicin by mouse foot-pad test and all relapsed patients responded favourably to fixed duration MDT regimen for MB cases.
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Affiliation(s)
- H Y Li
- Beijing Tropical Medicine Research Institute, China
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Fan XG, Li TG, Harry HX. [Effect of human serum on the growth of Helicobacter pylori]. Hunan Yi Ke Da Xue Xue Bao 2000; 25:371-2. [PMID: 12206006 DOI: pmid/12206006] [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: 02/07/2023]
Abstract
To investigate whether sheep blood could be replaced with human serum or fetal calf serum for Helicobacter pylori(Hp) culture, Hp was inoculated onto the culture plates containing 7% of sheep blood, human serum, or fetal calf serum respectively. The colonies were counted after 5 days of culture. Similar culture results were obtained in the plates containing sheep blood, human serum, or fetal calf serum respectively. No effect of anti-Hp-IgG antibody in human serum on the growth of Hp was found (P > 0.05). However, heat-inactivated human serum significantly suppressed the growth of Hp (P < 0.01). Human serum or fetal calf serum may be used for Hp culture where sheep blood is not available. Bactericidal activity against Hp in human serum is mediated by complements.
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Affiliation(s)
- X G Fan
- Department of Infectious Diseases, Xiangya Hospital, Hunan Medical University, Changsha 410008
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Abstract
To determine whether there is diversity among clinical isolates of Helicobacter pylori in Chinese patients with peptic ulcer disease, 40 strains of H. pylori were isolated from antral biopsy specimens obtained at the gastroenterology clinic of Xiangya Hospital from January 1996 to June 1998. Total protein profile by sodium dodecyl sulphate-polyacrylamide gel electrophoresis (SDS-PAGE) and DNA diversity by polymerase chain reaction-random amplified polymorphic DNA (PCR-RAPD) fingerprinting were performed with these isolates. All the isolates from peptic ulcer disease were relatively homogeneous in protein profiles, but they showed a great DNA sequence diversity by PCR-RAPD fingerprinting. In Chinese patients H. pylori demonstrated an enormous diversity. The diversity among clinical isolates of H. pylori could be distinctly demonstrated and this observation will be helpful in the management of intrafamilial and recurrent H. pylori infection. PCR-RAPD fingerprinting is an efficient method of distinguishing between clinical isolates of H. pylori.
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Affiliation(s)
- J Yakoob
- Department of Infectious Diseases, Xiangya Hospital, Hunan Medical University, Changsha, PR China.
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Abstract
The survival capacity of Helicobacter pylori in artificially contaminated milk and tap water was investigated in the study. Helicobacter pylori could survive for up to 10 days in milk at 4 degrees C storage but only 4 days in tap water with a steady decrease of colony forming units. However, electron microscopy clearly showed that the non-culturable coccoid form was present in tap water which had been kept at 4 degrees C for 7 days. It is concluded that H. pylori may survive in tap water as well as in milk, with the implication that they may, thereby, act as a vehicle of transmission.
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Affiliation(s)
- X G Fan
- Department of Infectious Diseases, Xiangya Hospital, Hunan Medical University, Changsha, PR China.
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Fan XG, Zou YY, Wu AH, Li TG, Hu GL, Zhang Z. Seroprevalence of Helicobacter pylori infection in patients with hepatitis B. Br J Biomed Sci 1998; 55:176-8. [PMID: 10367401] [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: 02/12/2023]
Abstract
Helicobacter pylori infection has been investigated extensively in immunocompromised hosts, such as those with acquired immunodeficiency syndrome (AIDS) and organ transplant recipients. However, few reports on H. pylori prevalence in individuals with chronic HBV infection are available. The aim of this serological study is to investigate H. pylori prevalence in patients with hepatitis B. Ninety-six consecutive hospitalised patients with chronic hepatitis B were studied, together with 104 age-matched healthy individuals of similar socioeconomic status and with no evidence of hepatitis B virus infection or liver diseases. Serum samples from both groups were tested for specific IgG antibodies to H. pylori, using enzyme-linked immunosorbent assay (ELISA). Of the 96 patients with hepatitis B, 55 (57.3%) were positive for serum IgG anti-H. pylori, significantly greater than in the control group of 104, where 44 (42.3%) were positive (P < 0.05). In addition, the seroprevalence of H. pylori in the 45 patients who were positive for hepatitis B envelope antigen (HBeAg) and/or HBV-DNA was 75.6% (34), compared to 41.2% (21) in the 51 patients who were negative (P < 0.005). An increase in H. pylori prevalence is present in patients with chronic hepatitis B. Further study is needed to determine whether eradication of H. pylori will benefit these patients.
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Affiliation(s)
- X G Fan
- Department of Infectious Diseases, Xiangya Hospital, Hunan Medical University, Changsha, Hunan, People's Republic of China
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Abstract
Culture of Helicobacter pylori requires micro-aerobic conditions which are usually generated by a commercial gas-generator system. However, the commercial gas-generator pack is not available in most hospitals in developing countries. The present study showed that H. pylori grew well in a candle jar system that provided micro-aerobic condition; this gave similar cultural results to a commercial gas-generator system. Therefore, the candle jar system can be used for H. pylori micro-aerobic culture in developing countries where commercial systems are not available.
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Affiliation(s)
- X G Fan
- Department of Infectious Diseases, Xiangya Hospital, Hunan Medical University, Changsha, PR China
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Yan SM, Flor-Henry P, Chen DY, Li TG, Qi SG, Ma ZX. Imbalance of hemispheric functions in the major psychoses: a study of handedness in the People's Republic of China. Biol Psychiatry 1985; 20:906-17. [PMID: 4040777 DOI: 10.1016/0006-3223(85)90216-1] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/08/2023]
Abstract
A study of hand preference and eye dominance in schizophrenia, manic-depressive psychosis, and normal controls was carried out in the People's Republic of China. An excess of sinistrality was found in both men and women schizophrenics, but not in manic-depressive patients. Both the manic-depressive and schizophrenic psychoses are characterized by a significant excess of left eye dominance and by an increasing divergence between eye and hand dominance when compared to the controls. The major published studies investigating hand preference in psychopathology are reviewed, and possible interpretations of the conflicting findings are suggested.
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