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Yang ST, Luo WR, Hu MH, Yu JL, Zhou X, Li DX, Zhou MH, Zhao JW, Huang XR, He J. [Epidemiological characteristics and analysis of related infection risk factors for influenza in Anhui Province from 2013 to 2021]. Zhonghua Liu Xing Bing Xue Za Zhi 2023; 44:1237-1244. [PMID: 37661615 DOI: 10.3760/cma.j.cn112338-20221231-01091] [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: Analysis of the characteristics of influenza epidemic in Anhui Province and quantification of the impact of different factors on influenza occurrence, providing scientific basis for better influenza prevention and control. Methods: Descriptive analysis and factor analysis were conducted on influenza-like illness (ILI) cases and RT-PCR results in Anhui Province from 2013 to 2021 using data from China's Influenza Monitoring Information System. Results: The percentage of influenza-like illness (ILI%) of sentinel hospitals in Anhui Province from April 1, 2013 to March 31, 2021 was 3.80% (1 209 142/31 779 987), showing an overall increasing trend, with a relatively high proportion in 2017-2018 at 4.30% (191 148/4 448 211). The proportion of ILI cases in infants and young children aged 0-4 years was a relatively high at 54.14% (654 676/1 209 142), and the highest ILI% was observed in Fuyang City, Anhui Province (6.25%, 236 863/3 788 863). Laboratory monitoring results showed that the positive rate of ILI cases in sentinel hospitals in 8 influenza monitoring years was 16.38% (34 868/212 912), showing an increasing trend year by year, with a relatively proportion in 2017-2018 at 26.19% (6 936/26 488). The detection rate of school-age children aged 5-14 years was a relativelyhigh at 28.81% (13 869/48 144), and the positive rate was a relatively high in Wuhu City among the 16 cities, reaching 22.01% (2 693/122 237). Influenza activity showed a single peak in winter-spring and alternating double peaks in winter-spring and summer, with different subtypes alternating, and A (H3N2) was the dominant subtype in summer. The results of a multiple logistic regression model showed that the positive rate was higher in 2017-2018, among children aged 5-14 years, in winter, and in southern Anhui. Conclusions: Influenza epidemic in Anhui Province has a clear seasonal pattern, and the ILI% and detection rate have shown an upward trend from 2013 to 2021. Therefore, it is suggested to ensure vaccine supply before the winter-spring influenza season arrives, and to strengthen vaccine uptake and health education to avoid the risk of infection during the peak period of influenza.
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Affiliation(s)
- S T Yang
- School of Public Health, Anhui Medical University, Hefei 230032, China
| | - W R Luo
- Anhui Provincial Center for Disease Control and Prevention/Public Health Research Institute of Anhui Province, Hefei 230601, China
| | - M H Hu
- School of Public Health, Anhui Medical University, Hefei 230032, China
| | - J L Yu
- Anhui Provincial Center for Disease Control and Prevention/Public Health Research Institute of Anhui Province, Hefei 230601, China
| | - X Zhou
- Anhui Provincial Center for Disease Control and Prevention/Public Health Research Institute of Anhui Province, Hefei 230601, China
| | - D X Li
- School of Public Health, Anhui Medical University, Hefei 230032, China
| | - M H Zhou
- School of Public Health, Anhui Medical University, Hefei 230032, China
| | - J W Zhao
- School of Public Health, Anhui Medical University, Hefei 230032, China
| | - X R Huang
- School of Public Health, Anhui Medical University, Hefei 230032, China
| | - J He
- School of Public Health, Anhui Medical University, Hefei 230032, China Anhui Provincial Center for Disease Control and Prevention/Public Health Research Institute of Anhui Province, Hefei 230601, China
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Shang LY, Zhou MH, Cao SY, Zhang M, Wang PJ, Zhang S, Meng XX, Yang QM, Gao XL. Effect of polyethylene glycol 400 on the pharmacokinetics and tissue distribution of baicalin by intravenous injection based on the enzyme activity of UGT1A8/1A9. Eur J Pharm Sci 2023; 180:106328. [PMID: 36379359 DOI: 10.1016/j.ejps.2022.106328] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 10/11/2022] [Accepted: 11/09/2022] [Indexed: 11/13/2022]
Abstract
Baicalin (BG) is a bioactive flavonoid extracted from the dried root of the medicinal plant, Scutellaria radix (SR) (dicotyledonous family, Labiatae), and has several biological activities. Polyethylene glycol 400 (PEG400) has been used as a suitable solvent for several traditional Chinese medicines (TCM) and is often used as an excipient for the compound preparation of SR. However, the drug-excipient interactions between BG and PEG400 are still unknown. Herein, we evaluated the effect of a single intravenous PEG400 administration on the BG levels of rats using pharmacokinetic and tissue distribution studies. A liver microsome and recombinant enzyme incubation system were used to further confirm the interaction mechanism between PEG400 and UDP-glucuronosyltransferases (UGTs) (UGT1A8 and UGT1A9). The pharmacokinetic study demonstrated that following the co-intravenous administration of PEG400 and BG, the total clearance (CLz) of BG in the rat plasma decreased by 101.60% (p < 0.05), whereas the area under the plasma concentration-time curve (AUC)0-t and AUC0-inf increased by 144.59% (p < 0.05) and 140.05% (p < 0.05), respectively. Additionally, the tissue distribution study showed that the concentration of BG and baicalein-6-O-β-D-glucuronide (B6G) in the tissues increased, whereas baicalein (B) in the tissues decreased, and the total amount of BG and its metabolites in tissues altered following the intravenous administration of PEG400. We further found that PEG400 induced the UGT1A8 and UGT1A9 enzyme activities by affecting the maximum enzymatic velocity (Vmax) and Michaelis-Menten constant (Km) values of UGT1A8 and UGT1A9. In conclusion, our results demonstrated that PEG400 interaction with UGTs altered the pharmacokinetic behaviors and tissue distribution characteristics of BG and its metabolites in rats.
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Affiliation(s)
- Le-Yuan Shang
- State Key Laboratory of Functions and Applications of Medicinal Plants and School of Pharmacy, Guizhou Medical University, Guiyang 550025, China; Microbiology and Biochemical Pharmaceutical Engineering Research Center of Guizhou Provincial Department of Education, Guizhou Medical University, Guiyang 550004, China; Guizhou Medical University Experimental Animal Center, Guizhou Medical University, Guiyang 550025, China
| | - Ming-Hao Zhou
- Inspection Center of Guizhou Drug Administration, Guiyang 550025, China
| | - Si-Yuan Cao
- State Key Laboratory of Functions and Applications of Medicinal Plants and School of Pharmacy, Guizhou Medical University, Guiyang 550025, China; Microbiology and Biochemical Pharmaceutical Engineering Research Center of Guizhou Provincial Department of Education, Guizhou Medical University, Guiyang 550004, China; Guizhou Medical University Experimental Animal Center, Guizhou Medical University, Guiyang 550025, China
| | - Min Zhang
- State Key Laboratory of Functions and Applications of Medicinal Plants and School of Pharmacy, Guizhou Medical University, Guiyang 550025, China; Microbiology and Biochemical Pharmaceutical Engineering Research Center of Guizhou Provincial Department of Education, Guizhou Medical University, Guiyang 550004, China; Guizhou Medical University Experimental Animal Center, Guizhou Medical University, Guiyang 550025, China
| | - Peng-Jiao Wang
- State Key Laboratory of Functions and Applications of Medicinal Plants and School of Pharmacy, Guizhou Medical University, Guiyang 550025, China; Microbiology and Biochemical Pharmaceutical Engineering Research Center of Guizhou Provincial Department of Education, Guizhou Medical University, Guiyang 550004, China; Guizhou Medical University Experimental Animal Center, Guizhou Medical University, Guiyang 550025, China
| | - Shuo Zhang
- State Key Laboratory of Functions and Applications of Medicinal Plants and School of Pharmacy, Guizhou Medical University, Guiyang 550025, China; Microbiology and Biochemical Pharmaceutical Engineering Research Center of Guizhou Provincial Department of Education, Guizhou Medical University, Guiyang 550004, China; Guizhou Medical University Experimental Animal Center, Guizhou Medical University, Guiyang 550025, China
| | - Xiao-Xia Meng
- State Key Laboratory of Functions and Applications of Medicinal Plants and School of Pharmacy, Guizhou Medical University, Guiyang 550025, China; Microbiology and Biochemical Pharmaceutical Engineering Research Center of Guizhou Provincial Department of Education, Guizhou Medical University, Guiyang 550004, China; Guizhou Medical University Experimental Animal Center, Guizhou Medical University, Guiyang 550025, China
| | - Qi-Mei Yang
- State Key Laboratory of Functions and Applications of Medicinal Plants and School of Pharmacy, Guizhou Medical University, Guiyang 550025, China; Microbiology and Biochemical Pharmaceutical Engineering Research Center of Guizhou Provincial Department of Education, Guizhou Medical University, Guiyang 550004, China; Guizhou Medical University Experimental Animal Center, Guizhou Medical University, Guiyang 550025, China
| | - Xiu-Li Gao
- State Key Laboratory of Functions and Applications of Medicinal Plants and School of Pharmacy, Guizhou Medical University, Guiyang 550025, China; Microbiology and Biochemical Pharmaceutical Engineering Research Center of Guizhou Provincial Department of Education, Guizhou Medical University, Guiyang 550004, China; Guizhou Medical University Experimental Animal Center, Guizhou Medical University, Guiyang 550025, China.
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Yang FY, Liu JM, Gao X, Zhang HF, Dong YS, Liu J, Zhou MH, Liang GB. [Analysis of the effect of stent-assisted embolization for low-grade subarachnoid hemorrhage caused by V4 segment dissecting aneurysm of vertebral artery]. Zhonghua Wai Ke Za Zhi 2021; 59:691-696. [PMID: 34192863 DOI: 10.3760/cma.j.cn112139-20200914-00704] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the efficacy and safety of different stents assisted embolization in the treatment of subarachnoid hemorrhage(SAH) caused by V4 dissecting aneurysm of vertebral artery. Methods: The clinical data of 39 patients with spontaneous SAH V4 dissecting aneurysm treated at the Department of Neurosurgery, the Northern Theater General Hospital from January 2016 to June 2019 were analyzed retrospectively.There were 21 males and 18 females, aged (48±17) years(range:35 to 68 years).There were 24 cases of HUNT-HESS grade Ⅰ and 15 cases of grade Ⅱ.Among them, 20 cases were treated with single stent-assisted embolization, 9 cases with multi-stent-assisted embolization, 9 cases with semi-dense mesh-assisted embolization, and 1 case with dense-mesh stent-assisted embolization.The perioperative and postoperative complications, postoperative recurrence were collected. Results: Intraoperative complications included 2 cases of aneurysm rupture and 2 cases of acute thrombosis.All aneurysms were densely packed according to the angiography performed immediately after operation.Postoperative complications included 3 cases of long-term responsible vascular ischemia(modified Rankin score<2). The patients were followed up for 15.1 months(range: 12 to 29 months). At the last follow-up, aneurysms recurrence occured in 10 cases, the recurrence rate was 25.6%(10/39). There were 6 cases of recurrence and 2 cases of complications in 20 cases with single stent-assisted embolization, 3 cases of recurrence and 4 cases of complications in 9 cases with multi-stent-assisted embolization, 1 case of recurrence and 1 case of complications in 9 cases with semi-dense mesh stent. Conclusion: Endovascular treatment is feasible for patients with vertebral artery dissecting aneurysm, and the appropriate surgical method should be selected according to the vascular structure and the location of the aneurysm.
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Affiliation(s)
- F Y Yang
- Department of Neurosurgery, the Northern Theater General Hospital, Shenyang 110000, China
| | - J M Liu
- Department of Neurosurgery, the Northern Theater General Hospital, Shenyang 110000, China
| | - X Gao
- Department of Neurosurgery, the Northern Theater General Hospital, Shenyang 110000, China
| | - H F Zhang
- Department of Neurosurgery, the Northern Theater General Hospital, Shenyang 110000, China
| | - Y S Dong
- Department of Neurosurgery, the Northern Theater General Hospital, Shenyang 110000, China
| | - J Liu
- Department of Neurosurgery, the Northern Theater General Hospital, Shenyang 110000, China
| | - M H Zhou
- Department of Neurosurgery, the Northern Theater General Hospital, Shenyang 110000, China
| | - G B Liang
- Department of Neurosurgery, the Northern Theater General Hospital, Shenyang 110000, China
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Cao Y, Zhou MH, Zhai XJ. [Prevalence of HBV co-infection in HIV-positive population in China: a systematic review and Meta-analysis]. Zhonghua Liu Xing Bing Xue Za Zhi 2021; 42:327-334. [PMID: 33626624 DOI: 10.3760/cma.j.cn112338-20200727-00987] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To reveal the epidemiologic characteristics of hepatitis B virus (HBV) infection in HIV positive population in China. Methods: We collected research papers published from 2010 to 2019 on HBV co-infection in HIV positive population in China through literature retrieval, screening and quality evaluation. The Meta-analysis was conducted after extracting relevant data from the research papers meeting the inclusion criteria. Results: Twenty-seven studies were included with 69 816 samples. The pooled HBV infection rate in HIV positive population in China was 11.29%. The HBV co-infection rate was higher in the western China (10.73%) and southern China (14.18%), while lower in northern China (6.36%). The HBV infection rates were 11.22%, 12.76%, 9.58%, 11.32% and 10.34%, respectively, in HIV-positive population infected through blood or blood products transfusion, intravenous drug use, homosexual contact, heterosexual contact and unknown transmission routes. Population infected with HIV caused by mother-to-child transmission had the lowest HBV infection rate (2.87%). The HBV infection rate in HIV positive males was 1.29 times higher than that in HIV positive females in southern China. Conclusions: The HBV infection rate in HIV positive population is significantly higher than that in general population. More attention should be paid to the prevention and control of HBV co-infection in HIV positive population.
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Affiliation(s)
- Y Cao
- School of Public Health, Nanjing Medical University, Nanjing 211166, China
| | - M H Zhou
- Jiangsu Provincial Health Commission,Nanjing 210008, China
| | - X J Zhai
- Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China
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Zhai X, Zhu L, Jiang J, Song C, Peng H, Qian J, Zhou M, Zhou Y, Wang Q, Xu J, Wang Z, Liu H, Fan M, Hu Z, Shen H, Zhu F. Virological activity in treatment-naïve HBeAg-negative HBV-infected adult patients: A community-based study in Jiangsu, China. Medicine (Baltimore) 2020; 99:e21179. [PMID: 32702877 PMCID: PMC7373614 DOI: 10.1097/md.0000000000021179] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
Abstract
Nowadays most of the hepatitis B virus (HBV) infected population are adults, among which hepatitis B e antigen (HBeAg) negative infection occupied the largest proportion of HBV infection in China. HBeAg-negative patients are heterogeneous, and the corresponding interventions are different. Therefore, it is worth researching the infection characteristics of HBeAg-negative patients to help guide the interventions.A total of 11,738 treatment-naïve HBeAg-negative adult patients were randomly selected, and their demographic and medical history information were collected. The liver biochemistry, and HBV infection biomarkers including hepatitis B surface antigen (HBsAg), hepatitis B surface antibody (anti-HBs), HBeAg, hepatitis B e antibody (anti-HBe), hepatitis B core antibody (anti-HBc), and hepatitis B virus deoxyribonucleic acid (HBV-DNA) levels were tested. The infection characteristics and their influencing factors were explored.Sixty percent of the patients presented HBV-DNA-positive, of which 31.2% had HBV-DNA level higher than 2000 IU/mL, and 16.5% had HBV-DNA level higher than 20,000 IU/mL. HBV-DNA levels tended to increase along with the increasing of age, and the male patients had significant higher HBV-DNA levels than the female patients. Twenty-four percent of the patients had abnormal transaminase. The male patients were more vulnerable to abnormal transaminase (30.0%) than the female patients (18.4%). Fifty-five percent patients with HBV-DNA ≥20,000 IU/mL presented abnormal alanine aminotransferase (ALT) or aspartate transaminase (AST), which was significantly higher than that of patients with HBV-DNA levels below 20,000 IU/mL (19.0-21.7%). Multivariate logistic regression analyses revealed that the male patients and the patients with higher viral load had higher risk of having abnormal liver function.A considerable number of HBeAg-negative patients were virological active and had liver damage. It is necessary and urgent to carry out regular active interventions for the chronic HBV-infected patients.
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Affiliation(s)
- Xiangjun Zhai
- Jiangsu Province Center for Disease Prevention and Control, Nanjing
- NHC Key Laboratory of Enteric Pathogenic Microbiology, Jiangsu Provincial Center for Disease Control and Prevention
- Key Laboratory of Infectious Diseases, School of Public Health, Nanjing Medical University
- Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Jiangsu Collaborative Innovation Center for Cancer Personalized Medicine
| | - Liguo Zhu
- Jiangsu Province Center for Disease Prevention and Control, Nanjing
- Key Laboratory of Infectious Diseases, School of Public Health, Nanjing Medical University
- Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Jiangsu Collaborative Innovation Center for Cancer Personalized Medicine
| | - Jie Jiang
- Jiangsu Province Center for Disease Prevention and Control, Nanjing
| | - Ci Song
- Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Jiangsu Collaborative Innovation Center for Cancer Personalized Medicine
- Department of Epidemiology, School of Public Health, Nanjing Medical University, Nanjing
| | - Hong Peng
- Jiangsu Province Center for Disease Prevention and Control, Nanjing
| | - Jiao Qian
- Jiangsu Province Center for Disease Prevention and Control, Nanjing
| | - MingHao Zhou
- Jiangsu Province Center for Disease Prevention and Control, Nanjing
| | - Yan Zhou
- Zhangjiagang Center for Disease Prevention and Control, Zhangjiagang
| | - Qungang Wang
- Zhangjiagang Center for Disease Prevention and Control, Zhangjiagang
| | - Jianfang Xu
- Danyang Center for Disease Prevention and Control, Danyang
| | - Zhijian Wang
- Danyang Center for Disease Prevention and Control, Danyang
| | - Hongjian Liu
- Taixing Center for Disease Prevention and Control, Taixing, People's Republic of China
| | - Min Fan
- Taixing Center for Disease Prevention and Control, Taixing, People's Republic of China
| | - Zhibin Hu
- Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Jiangsu Collaborative Innovation Center for Cancer Personalized Medicine
- Department of Epidemiology, School of Public Health, Nanjing Medical University, Nanjing
| | - Hongbin Shen
- Jiangsu Key Lab of Cancer Biomarkers, Prevention and Treatment, Jiangsu Collaborative Innovation Center for Cancer Personalized Medicine
- Department of Epidemiology, School of Public Health, Nanjing Medical University, Nanjing
| | - Fengcai Zhu
- Jiangsu Province Center for Disease Prevention and Control, Nanjing
- NHC Key Laboratory of Enteric Pathogenic Microbiology, Jiangsu Provincial Center for Disease Control and Prevention
- Key Laboratory of Infectious Diseases, School of Public Health, Nanjing Medical University
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Wang DL, Zhang XF, Wang XC, Wang YT, Zhang R, Chen YY, Wang Q, Yue N, Bao CC, Zhou MH, Jin H. [Cost-effectiveness analysis of rabies immunization strategy based on dynamic-decision tree model]. Zhonghua Yu Fang Yi Xue Za Zhi 2019; 53:804-810. [PMID: 31378040 DOI: 10.3760/cma.j.issn.0253-9624.2019.08.002] [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 evaluate the cost-utility of different immunization strategies for rabies in China, and to provide a reference for determining the optimal immunization strategy. Methods: The system dynamics model was used to simulate the epidemic of canine rabies and a decision tree model was conducted to analysis different immune strategies. Relevant probabilities were obtained through literature search and on-site investigation. Sensitivity analysis was used to explore the important influenced factors. Results: At baseline, from a social perspective, 70% vaccination of dogs was the optimal strategy compared to current vaccination strategy (43% vaccination in dogs, human category-Ⅱ exposure vaccination/category-Ⅲ exposure vaccination combined with RIG). The total cost was 14 084 354 CNY, and the total utility value was 22 078 616.23 QALYs, and the incremental cost-utility ratio was-62 148 147 CNY/QALY; if human vaccination was considered, 55% vaccination of dogs combined with strategy one was the optimal strategy, its incremental cost-utility ratio was-444 620 557 CNY/QALY. The probability that an injured dog carries rabies virus was the most sensitive parameter. When it was greater than 0.005 03, strategy four was the optimal strategy. When it was less than 82/100 000, strategy one was the optimal strategy; when it was between 82/100 000 and 120/100 000, strategy two was the optimal strategy; when it was between 120/100 000 and 503/100 000, strategy two was the optimal strategy. Conclusion: It was conducive to increase the vaccination coverage of canine for the prevention and control of rabies.
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Affiliation(s)
- D L Wang
- Department of Epidemiology and Health Statistics, School of Public Health, Southeast University, Nanjing 210009, China
| | - X F Zhang
- Institute of Acute Infectious Diseases Prevention and Control, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China
| | - X C Wang
- Institute of Acute Infectious Diseases Prevention and Control, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China
| | - Y T Wang
- Department of Epidemiology and Health Statistics, School of Public Health, Southeast University, Nanjing 210009, China
| | - R Zhang
- Department of Epidemiology and Health Statistics, School of Public Health, Southeast University, Nanjing 210009, China
| | - Y Y Chen
- Department of Epidemiology and Health Statistics, School of Public Health, Southeast University, Nanjing 210009, China
| | - Q Wang
- Department of Epidemiology and Health Statistics, School of Public Health, Southeast University, Nanjing 210009, China
| | - N Yue
- Department of Epidemiology and Health Statistics, School of Public Health, Southeast University, Nanjing 210009, China
| | - C C Bao
- Institute of Acute Infectious Diseases Prevention and Control, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China
| | - M H Zhou
- Institute of Acute Infectious Diseases Prevention and Control, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China
| | - H Jin
- Department of Epidemiology and Health Statistics, School of Public Health, Southeast University, Nanjing 210009, China
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Tan WL, Li CX, Lv RC, Dong YD, Guo XX, Xing D, Zhou MH, Xu Y, Chu HL, Wang G, Zhu CQ, Sun J, Zhao TY. The polymorphism and geographical distribution of knockdown resistance of adult Anopheles sinensis populations in eastern China. Malar J 2019; 18:164. [PMID: 31064367 PMCID: PMC6505223 DOI: 10.1186/s12936-019-2793-z] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/19/2018] [Accepted: 04/25/2019] [Indexed: 12/03/2022] Open
Abstract
Background Anopheles sinensis is one of the major malaria vectors in China and other southeast Asian countries, including Vietnam, Cambodia, Thailand. Vector control is considered to be the critical measure for malaria control, while the increasing prevalence of insecticide resistance caused by long-term use of insecticides, especially pyrethroids, is threatening the successful control of An. sinensis. In order to understand the underlying resistance mechanisms involved and molecular basis, the principal malaria vector, An. sinensis from Jiangsu and Anhui provinces, Southeast China, was investigated. Methods The adult Anopheles mosquitoes were sampled from multiple sites across Jiangsu and Anhui provinces, and sufficient mosquitoes collected from eleven sites for insecticide susceptibility bioassays. The DIIS4–DIIS6 region of the para-type sodium channel gene was amplified and sequenced, then multiple PCR and Taqman assays were used to assess the frequencies of kdr mutations at the target gene. Results In the present study, most of the adult An. sinensis populations were pyrethroids resistant, which indicated the presence of kdr resistance mutations in the para-type sodium channel gene. Sequence analyses demonstrated the kdr mutation existed at codon 1014 in Jiangsu and Anhui provinces. In adult An. sinensis, three mutant types (TTT L1014F, TTC L1014F, and TGT L1014C) of kdr alleles were detected, while no wild type (TTG L1014) was observed. The TTC L1014F mutation was first reported in Anhui province. Conclusions The highly polymorphic kdr alleles were observed in all the adult An. sinensis populations, which suggested that in-depth studies are required for carrying on insecticide resistance monitoring and specific resistance mechanisms studying into establish effective long-term malaria vector control program in eastern China.
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Affiliation(s)
- Wei-Long Tan
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, 100071, China.,Department of Vector Control, Huadong Research Institute for Medicine and Biotechnics, Nanjing, 210002, Jiangsu, China
| | - Chun-Xiao Li
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, 100071, China
| | - Rui-Chen Lv
- Department of Vector Control, Huadong Research Institute for Medicine and Biotechnics, Nanjing, 210002, Jiangsu, China
| | - Yan-De Dong
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, 100071, China
| | - Xiao-Xia Guo
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, 100071, China
| | - Dan Xing
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, 100071, China
| | - Ming-Hao Zhou
- Department of Vector Control, Jiangsu Center for Disease Prevention and Control, Nanjing, Jiangsu, China
| | - Yan Xu
- Department of Vector Control, Jiangsu Center for Disease Prevention and Control, Nanjing, Jiangsu, China
| | - Hong-Liang Chu
- Department of Vector Control, Jiangsu Center for Disease Prevention and Control, Nanjing, Jiangsu, China
| | - Gang Wang
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, 100071, China
| | - Chang-Qiang Zhu
- Department of Vector Control, Huadong Research Institute for Medicine and Biotechnics, Nanjing, 210002, Jiangsu, China
| | - Jun Sun
- Department of Vector Control, Jiangsu Center for Disease Prevention and Control, Nanjing, Jiangsu, China.
| | - Tong-Yan Zhao
- State Key Laboratory of Pathogen and Biosecurity, Beijing Institute of Microbiology and Epidemiology, Beijing, 100071, China.
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Zhou MH, Zhang SJ, Wang F, Zhao YL, Liu YQ, Zhang YJ, Liu S. [IL-25-regulated type 2 innate lymphoid cells activation promote allergic fungal rhinosinusitis]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2019; 54:38-45. [PMID: 30704168 DOI: 10.3760/cma.j.issn.1673-0860.2019.01.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the regulation of IL-25 on type Ⅱ innate lymphoid cells (ILC2s) activation in the pathogenesis of allergic fungal rhinosinusitis (AFRS). Methods: Nasal mucosa tissues were collected from 16 AFRS patients and 12 patients, who underwent nasal endoscopic surgery for cerebrospinal rhinorrhea or skull base benign tumor during the period from June 2016 to June 2017 in Department of Rhinology, the First Affiliated Hospital of Zhengzhou University. Firstly, flow cytometry was used to detect ILC2s in nasal mucosa of both groups. Secondly, the expression of IL-25, IL-5 and IL-13 in nasal mucosa was detected by immunofluorescence and/or Western Blot assay. Finally, fungal extracts, IL-25 and glucocorticoids were used to stimulate nasal mucosal epithelial cells and tissues in vitro respectively to detect the regulatory effect of IL-25 on ILC2s. SPSS 16.0 software was used to analyze the data. Results: The prevalence of ILC2s in nasal tissues was higher in patients with AFRS than those of the control group ((3.85±1.52)%(Mean±SD) vs (0.32±0.10)%, U=9.00, P<0.05). There was a positive correlation between the prevalence of ILC2s and the number of eosinophils in nasal mucosa of patients with ARFS (r=0.80, P<0.05). The expression of IL-25, IL-5 and IL-13 in nasal mucosa epithelium of AFRS group was significantly higher than that of the control group (0.49±0.13 vs 0.23±0.09, 0.23±0.05 vs 0.10±0.04, 0.31±0.08 vs 0.14±0.07, t value was 5.90, 7.21, 5.69, respectively, all P<0.05). Fungal stimulation enhanced the expression of IL-25 protein in nasal epithelial cells of both groups (0.67±0.19 vs 0.25±0.12 (AFRS group), 0.62±0.17 vs 0.27±0.16 (control group), q value was 8.65, 9.26, respectively, all P<0.05). In the IL-25 stimulated nasal mucosa at a concentration of 1, 10 and 100 ng/ml, the expression level of retinoid acid-related orphan receptor α (RORα) mRNA was 2.07±1.53, 5.06±0.93, 7.38±2.30, respectively; the expression level of GATA binding protein 3 (GATA3) mRNA was 3.58±1.29, 6.14±1.55, 7.64±2.28, respectively; the expression level of IL-5 protein was 0.21±0.06, 0.32±0.06, 0.38±0.10, respectively; the expression level of IL-13 was 0.52±0.13, 0.69±0.22, 0.82±0.21, respectively, which were significantly higher than that in the unstimulated nasal mucosa (1.00±0.00, 1.00±0.00, 0.11±0.05, 0.35±0.15, F value was 63.45, 59.27, 49.35, 20.20, respectively, all P<0.05). The up-regulation could be inhibited by dexamethasone (F value was 89.20, 92.47, 99.63, 49.82, respectively, all P<0.05). Conclusions: Epithelial-derived IL-25 up-regulates the expression of IRC2s-dependent transcription factors RORα and GATA3 mRNA, which are positively correlated with elevated IL-13 and IL-5 expression levels in tissues, may be involved in AFRS inflammatory response, and are inhibited by glucocorticoids.
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Affiliation(s)
- M H Zhou
- Department of Rhinology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - S J Zhang
- Department of Clinical Laboratory, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - F Wang
- Department of Pathology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Y L Zhao
- Department of Rhinology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Y Q Liu
- Department of Pathology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Y J Zhang
- Department of Rhinology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - S Liu
- Department of Clinical Laboratory, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
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Deng X, Hu Y, Lu P, Zhou MH, Guo H. The first outbreak of measles virus caused by imported genotype D8 in Jiangsu province of China. Braz J Infect Dis 2019; 23:66-69. [PMID: 30876879 PMCID: PMC9428010 DOI: 10.1016/j.bjid.2019.02.003] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2018] [Revised: 02/27/2019] [Accepted: 02/27/2019] [Indexed: 11/30/2022] Open
Abstract
Here we reported the outbreak of measles cases caused by the genotype D8 measles virus for the first time in Jiangsu province in China, which was possibly imported by a foreign student from Laos. Throat swab specimens were collected, and used to isolate virus. 634-bp fragment of the N gene and 1854-bp fragment of H gene were amplified by reverse transcription-PCR and sequenced, respectively. Phylogenetic results indicated that they belonged to genotype D8 measles virus. Further epidemiology investigation showed that the adults with D8 measles virus infection did not receive measles vaccine before having measles. In China, almost all D8 genotype MeV only infected those population without receiving measles vaccine immunization. Therefore, it is still necessary to implement the supplement activity of measles immunization target adult with immunity gap.
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Affiliation(s)
- Xiuying Deng
- Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | - Ying Hu
- Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | - Peishan Lu
- Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | - Ming-Hao Zhou
- Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | - Hongxiong Guo
- Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China.
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Zhu L, Jiang J, Zhai X, Baecker A, Peng H, Qian J, Zhou M, Song C, Zhou Y, Xu J, Liu H, Hang D, Hu Z, Shen H, Zhang ZF, Zhu F. Hepatitis B virus infection and risk of non-alcoholic fatty liver disease: A population-based cohort study. Liver Int 2019; 39:70-80. [PMID: 30025200 PMCID: PMC6309470 DOI: 10.1111/liv.13933] [Citation(s) in RCA: 37] [Impact Index Per Article: 7.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Revised: 06/19/2018] [Accepted: 07/03/2018] [Indexed: 01/13/2023]
Abstract
BACKGROUND & AIMS Although non-alcoholic fatty liver disease (NAFLD) has been studied extensively, the potential risk factors for NAFLD among chronic hepatitis B (CHB) patients have not been fully known. METHODS A population-based cohort of adult CHB patients without a history of alcohol drinking or NAFLD were recruited and followed up from October 2012 to January 2015 in Jiangsu province, China. Using Cox proportional hazards regression model, potential risk factors including viral and metabolic factors for NAFLD were evaluated. RESULTS Two thousand three hundred and ninety-three adult CHB patients (mean age 50.7 ± 13.2 years) were included in the cohort. With 4429 person-years of follow-up, 283 individuals progressed to NAFLD with an incidence rate of 63.89/1000 person-years. Overweight and obese CHB patients had an increased risk of NAFLD (overweight adjusted hazard ratio [HR], 3.10; 95% CI, 2.29-4.18; obese HR, 8.52; 95%CI, 5.93-12.25) compared to normal weight carriers. The incidence of NAFLD was associated with concurrent type 2 diabetes mellitus (DM) (HR, 1.88; 95%CI, 1.15-3.08). However, no associations between viral factors with NAFLD incidence rate were identified. In a subgroup of participants with concurrent type 2 DM, detectable HBV DNA levels were negatively associated with the development of NAFLD (HR, 0.37; 95%CI, 0.14-0.98). There was super-multiplicative interaction between BMI and gender with respect to incidence of NAFLD, with an ROR of 2.08 (95%CI, 1.02-4.23). CONCLUSION Metabolic factors play an important role in the presence of NAFLD among Chinese CHB patients. However, viral replication factors are not related to NAFLD except among those with concurrent type 2 DM.
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Affiliation(s)
- Liguo Zhu
- Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China,Department of Epidemiology, School of Public Health, University of California, Los Angeles, USA
| | - Jie Jiang
- Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | - Xiangjun Zhai
- Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | - Aileen Baecker
- Department of Epidemiology, School of Public Health, University of California, Los Angeles, USA
| | - Hong Peng
- Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | - Jiao Qian
- Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | - MingHao Zhou
- Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | - Ci Song
- Department of Epidemiology, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Yan Zhou
- Zhangjiagang Center for Disease Control and Prevention, Zhangjiagang, China
| | - Jianfang Xu
- Danyang Center for Disease Control and Prevention, Danyang, China
| | - Hongjian Liu
- Taixing Center for Disease Control and Prevention, Taixing, China
| | - Dong Hang
- Department of Epidemiology, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Zhibin Hu
- Department of Epidemiology, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Hongbin Shen
- Department of Epidemiology, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Zuo-Feng Zhang
- Department of Epidemiology, School of Public Health, University of California, Los Angeles, USA
| | - Fengcai Zhu
- Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China,Correspondence should be addressed to Fengcai Zhu, MD, Jiangsu Provincial Center for Disease Control and Prevention, 172 Jiangsu Road, Nanjing Jiangsu 210009, People’s Republic of China, Tel: +86-25-837-59984; Fax: +86-25-837-59505,
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11
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Zhou MH, Zhao YL, Zhang YJ, Zhang ST. [Clinical analysis of combined treatment in 87 patients with recurrent allergic fungal rhinosinusitis]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2018; 32:541-544. [PMID: 29798088 DOI: 10.13201/j.issn.1001-1781.2018.07.016] [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] [Received: 01/27/2018] [Indexed: 11/12/2022]
Abstract
Objective:To evaluate the effects of combined treatment with FESS on postoperative recurrent allergic fungal rhinosinusitis treatment.Method:Eighty-seven patients with allergic fungal sinusitis under combined treatment were investigated.Result:All patients were followed up for more than one year.Clinical symptoms had greatly improved after treatment compared with before treatment.Postoperative VAS score and Lund-Mackay score were lower than preoperative ones.Out of 87 patients,42 patients were successfully cured, 37 patients showed improvement, but there was no change in other 8 patients. The total efficacy rate was 90.81%.Conclusion:The combined treatment of recurrent allergic fungal rhinosinusitis treatment has achieved good effect. We should not only open sinus and remove the fungi, but also should pay attention to the elimination of inflammatory response in the treatment of recurrent allergic fungal rhinosinusitis.
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Affiliation(s)
- M H Zhou
- Department of Rhinology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou, 450052,China
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12
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Zhou MH, Zhao YL, Zhang YJ, Zhang ST. [Clinical analysis of individualized nasal cavity ventilation expansion techniques for treatment of OSAHS patients]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2018; 32:941-943;948. [PMID: 29921079 DOI: 10.13201/j.issn.1001-1781.2018.12.014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 03/10/2018] [Indexed: 11/12/2022]
Abstract
Objective:To investigate efficacy of individualized nasal cavity ventilation expansion techniques for OSAHS patients with nasal obstruction. Method:One hundred and twelve OSAHS patients with nasal obstruction were included in this study. Nasal cavity ventilation expansion techniques were performed. Every patient took the examination of acoustic rhinometry, nasal respiration volume, rhinomanometry and polysomnography, and filled VAS of nasal obstruction and Epworth Sleep Scores(ESS) before surgery and three months after surgery. Result:Follow-up was for 6-12 months. Of all the patients, 39 cases were cured, 37 cases were remarkably improved, 21 cases were effective, and 15 cases were of no effect, respectively. Compared with pre-operative examination data in all OSAHS patients, nasal ventilation was markedly improved, the ESS was significantly decreased, the AHI was significantly decreased, LSaO2 and MSaO2 were significantly increased, and sleep structure did not change significantly in all OSAHS patients 6 month after nasal surgery. Conclusion:Individualized nasal cavity ventilation expansion techniques is an effective treatment for OSAHS patients with nasal obstruction,improves the safety of patients with UPPP surgery, and the tolerability of CPAP in some patients with ineffective surgery.
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Affiliation(s)
- M H Zhou
- Department of Rhinology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou,450052, China
| | - Y L Zhao
- Department of Rhinology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou,450052, China
| | - Y J Zhang
- Department of Rhinology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou,450052, China
| | - S T Zhang
- Department of Rhinology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou,450052, China
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13
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Chen Q, Ba YP, Zhou MH, Li SD, Zhang PW. [CD23 on B cells determines Breg-facilitated IL-10 secretion as well as activation of T cells]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2018; 32:931-937. [PMID: 29921077 DOI: 10.13201/j.issn.1001-1781.2018.12.012] [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] [Received: 03/15/2018] [Indexed: 11/12/2022]
Abstract
Objective:To explore whether or not the IL-10 mediated by Bregs modulate the secreting T cells activation by the anti-CD23 antibody, to find a new target for the treatment of allergic rhinitis. Method:The rat model of allergic rhinitis was established. Anti-CD23 antibody was used to observe the behavioral changes, passive skin allergen test, enzyme-linked immunosorbent assay, hematoxylin and eosin staining, immunofluorescence and flow cytometry serological indicators, systemic and nasal mucosa. Result:Compared with the blank control group, allergic rhinitis group rats sneezing, flexible nose, runny nose, subcutaneous mass increases;The levels of IL-10, IFN-γ and Bregs in blood decreased, the levels of IL-4, CD23+ B cells and CD4+ T cells increased;Nasal mucosa CD23 fluorescence intensity increased, CD19 and IL-10 fluorescence intensity decreased. Compared with the allergic rhinitis group, the number of sneezing, the frequency of nasal flexion, the symptoms of runny nose and the subcutaneous mass in the antibody intervention group were significantly improved;The levels of IL-10 in the blood, IFN-γ, the percentage of Bregs cells in whole blood increased, the levels of IL-4, CD23+ B cells and CD4+ T cells decreased;Nasal mucosa CD23 fluorescence intensity decreased, CD19 and IL-10 fluorescence intensity increased. There is little difference between the two routes of administration. Conclusion:The enhanced expression of CD23 on B cells is involved in the development of allergic rhinitis. The anti-CD23 antibody may control the symptoms and signs of allergic rhinitis. There is no significant difference between subcutaneous administration and improved nasal-drip way. As the preferred method of anti-CD23 antibody application, anti-CD23 is expected to become a new method to control and treat allergic rhinitis. Anti-CD23 antibodies can exert a therapeutic effect by T cell activation,which rely on the Bregs-mediated secretion of IL-10.
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Affiliation(s)
- Q Chen
- Department of Rhinology,the First Affiliated Hospital of Zhengzhou University,Zhengzhou,450000,China
| | - Y P Ba
- Department of Rhinology,the First Affiliated Hospital of Zhengzhou University,Zhengzhou,450000,China
| | - M H Zhou
- Department of Rhinology,the First Affiliated Hospital of Zhengzhou University,Zhengzhou,450000,China
| | - S D Li
- Department of Rhinology,the First Affiliated Hospital of Zhengzhou University,Zhengzhou,450000,China
| | - P W Zhang
- Department of Rhinology,the First Affiliated Hospital of Zhengzhou University,Zhengzhou,450000,China
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Zhu L, Zhai X, Wang Q, Jiang J, Peng H, Song C, Ge Z, Qian J, Zhou M, Zhou Y, Xu J, Liu H, Hang D, Hu Z, Shen H, Zhu F. Incidence and determinants of spontaneous hepatitis B surface antigen seroclearance and seroconversion in hepatitis B e antigen-negative chronic infection patients: A population-based prospective cohort. J Viral Hepat 2018; 25:1588-1598. [PMID: 30112835 DOI: 10.1111/jvh.12978] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/25/2017] [Revised: 06/05/2018] [Accepted: 07/03/2018] [Indexed: 12/11/2022]
Abstract
Seroclearance of hepatitis B surface antigen (HBsAg) has been widely studied; however, seroconversion of HBsAg and characteristics of viral load among hepatitis B e antigen (HBeAg)-negative chronic infection patients after HBsAg lost is not clear. We performed a large-scale study in a HBeAg-negative chronic infection cohort to evaluate spontaneous HBsAg seroclearance incidence from October 2012 to April 2017 in Jiangsu province, China. We also elucidated the characteristics of HBsAg seroconversion and hepatitis B virus (HBV) DNA detectability among patients who cleared HBsAg. A total of 2997 HBeAg-negative chronic infection patients (mean age 52.3 ± 12.9 years at baseline) were included. With 10 519 person-years of follow-up, 348 patients successfully spontaneously cleared HBsAg, with an incidence rate of 3.31 per 100 person-years. Patients with HBV DNA detectable ~1999 IU/mL at baseline had a lower probability of HBsAg seroclearance relative to those with undetectable HBV DNA, with a hazard ratio of 0.31 (95% CI = 0.23, 0.41). HBsAg seroconversion occurred in 37.3% of those patients who cleared HBsAg. The geometric mean of anti-HBs among those with HBsAg conversion was 79.4 mIU/mL. Female had a higher HBsAg seroconversion rate (P = 0.011). Among those with HBsAg seroclearance, 11.2% still had HBV DNA levels of higher than 100 IU/mL. Patients with higher HBV DNA at baseline had a higher risk of detectable HBV DNA levels even after HBsAg seroclearance (P < 0.001). This study reveals HBsAg seroconversion rates and HBV DNA undetectability epidemiological characteristics of patients with HBsAg seroclearance and suggests that monitoring HBV DNA is needed when managing HBeAg-negative chronic patients, even after clearing HBsAg.
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Affiliation(s)
- Liguo Zhu
- Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | - Xiangjun Zhai
- Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | - Qungang Wang
- Zhangjiagang Center for Disease Control and Prevention, Zhangjiagang, China
| | - Jie Jiang
- Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | - Hong Peng
- Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | - Ci Song
- Department of Epidemiology, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Zijun Ge
- Department of Epidemiology, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Jiao Qian
- Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | - MingHao Zhou
- Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
| | - Yan Zhou
- Zhangjiagang Center for Disease Control and Prevention, Zhangjiagang, China
| | - Jianfang Xu
- Danyang Center for Disease Control and Prevention, Danyang, China
| | - Hongjian Liu
- Taixing Center for Disease Control and Prevention, Taixing, China
| | - Dong Hang
- Department of Epidemiology, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Zhibin Hu
- Department of Epidemiology, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Hongbin Shen
- Department of Epidemiology, School of Public Health, Nanjing Medical University, Nanjing, China
| | - Fengcai Zhu
- Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
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15
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Liu YB, Hu Y, Deng XY, Wang ZG, Sun X, Lu PS, Guo HX, Tang FY, Zhou MH. [Study of mumps immunity after administrating measles-mumps-rubella vaccine among children aged 2-7 years old in Jiangsu Province in 2015]. Zhonghua Yu Fang Yi Xue Za Zhi 2017; 51:593-597. [PMID: 28693082 DOI: 10.3760/cma.j.issn.0253-9624.2017.07.004] [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] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the immunity to mumps after administrating measles-mumps-rubella vaccine (MMR) among children aged 2-7 years old in Jiangsu province in 2015. Methods: A total of 4 190 healthy children aged 2-7 years old, living in local places for at least 3 months, and having been vaccinated at least 1 dose MMR were recruited to the study from Wujin district of Changzhou city, Gaogang district of Taizhou city and Ganyu district of Lianyungang city by using stratified cluster random sampling method between September and November, 2015. Those who did not accept MMR vaccination, who refused venous blood collection, who had affected mumps according to the memory of parents or teachers and who were diagnosed serious disease by clinical doctors were excluded from study. The self-designed questionnaire was used to collect the general information of the subjects and their MMR immunization history; and 0.5-2.0 ml of venous blood was collected from each subject. ELISA was used to detect the mumps antibody level in the serum of patients. Positive was defined as the antibody level ≥108 mU/ml, and negative as <108 mU/ml. χ(2) test was used to compare the difference in positive rates among subjects; and analysis of variance was used to compare the GMC changes in different time points after MMR vaccination. Results: Among 4 190 children, 2 280 were males (54.42%) and 1 910 were females(45.58%), and the positive rate of IgG antibody was 81.38% (3 344). There were 3 156 (95.18%) children vaccinated with one dose MMR, 187 (4.80%) children with two dose MMR, and 1 (0.02%) child with three dose MMR. The difference in positive rate of IgG antibody among different aged subjects showed statistical significance (χ(2)=58.61, P<0.001), the highest positive rate was in group of subjects aged 4-5 years old, at 89.43% (406/454), while the lowest positive rate was found among subjects aged 6-7 years old, at 75.63% (1 648/2 179). The positive rate after one dose of MMR vaccination was 79.14% (3 156/3 988), significantly less than it after two doses (93.03%, 187/201) (χ(2)=22.93, P<0.001). The GMC level at years<1, 1-<2, 2-<3, 3-<4, ≥4 following one dose MMR in the 3 988 children was 152.47, 227.78, 167.08, 126.91, 79.43 mU/ml, whose difference was statistically significant (F=51.29, P<0.001). Conclusion: The sero-prevalence of IgG antibody in the children aged 2-7 years old in Jiangsu province was high. The positive rate among who received two doses MMR was significantly higher than it among who received just one dose, and the GMC level waned with times.
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Affiliation(s)
- Y B Liu
- Division of Expanded Programme Immunization, Jiangsu Center for Disease Control and Prevention, Nanjing 210009, China
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Liang SY, Chu HL, Guo XL, Wang W, Chen HN, Zhang YF, Chen Y, Wu T, Bao CJ, Zhou MH. Experimental infections of mosquitoes with severe fever with thrombocytopenia syndrome virus. Infect Dis Poverty 2017; 6:78. [PMID: 28569189 PMCID: PMC5452404 DOI: 10.1186/s40249-017-0282-6] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2016] [Accepted: 03/09/2017] [Indexed: 11/17/2022] Open
Abstract
Background Severe fever with thrombocytopenia syndrome (SFTS) is a newly identified emerging infectious disease, which is caused by a novel bunyavirus (termed SFTSV) in Asia. Although mosquitoes have not been identified as the primary vectors, as revealed by epidemiological surveys, their role in transmitting this SFTSV as a suspicious vector has not been validated. Findings In this study, we conducted experimental infections of mosquitoes with SFTSV to examine the role of mosquitoes in the transmission of the virus. We did not detect viral replication in Culex pipiens pallens, Aedes aegyptis and Anopheles sinensis as revealed by qRT-PCR assay. In addition, we failed to isolate SFTSV from the Vero cells cultured with suspensions of SFTSV-infected mosquitoes. Conclusion The results of the present study demonstrate little possibility that mosquitoes act as vectors for the emerging pathogen SFTSV. Electronic supplementary material The online version of this article (doi:10.1186/s40249-017-0282-6) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Shu-Yi Liang
- Jiangsu Provincial Center for Disease Control and Prevention, No. 172 Jiangsu Road, Nanjing, People's Republic of China
| | - Hong-Liang Chu
- Jiangsu Provincial Center for Disease Control and Prevention, No. 172 Jiangsu Road, Nanjing, People's Republic of China
| | - Xi-Ling Guo
- Jiangsu Provincial Center for Disease Control and Prevention, No. 172 Jiangsu Road, Nanjing, People's Republic of China
| | - Wei Wang
- Jiangsu Institute of Parasitic Diseases, No. 117 Yangxiang, Meiyuan, Wuxi, People's Republic of China
| | - Hong-Na Chen
- Jiangsu Provincial Center for Disease Control and Prevention, No. 172 Jiangsu Road, Nanjing, People's Republic of China
| | - Yu-Fu Zhang
- Jiangsu Provincial Center for Disease Control and Prevention, No. 172 Jiangsu Road, Nanjing, People's Republic of China
| | - Yin Chen
- Jiangsu Provincial Center for Disease Control and Prevention, No. 172 Jiangsu Road, Nanjing, People's Republic of China
| | - Tao Wu
- Jiangsu Provincial Center for Disease Control and Prevention, No. 172 Jiangsu Road, Nanjing, People's Republic of China
| | - Chang-Jun Bao
- Jiangsu Provincial Center for Disease Control and Prevention, No. 172 Jiangsu Road, Nanjing, People's Republic of China
| | - Ming-Hao Zhou
- Jiangsu Provincial Center for Disease Control and Prevention, No. 172 Jiangsu Road, Nanjing, People's Republic of China.
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Zhang WJ, Shang XL, Peng J, Zhou MH, Sun WJ. Expression of prion protein in the cerebrospinal fluid of patients with Parkinson's disease complicated with rapid eye movement sleep behavior disorder. Genet Mol Res 2017; 16:gmr-16-01-gmr.16019022. [PMID: 28128401 DOI: 10.4238/gmr16019022] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Parkinson's disease (PD) is one of the most common neurodegenerative diseases and mainly manifests with decreasing numbers of dopaminergic neurons. Rapid eye movement (REM) sleep behavior disorder (RBD) has an incidence of 15-47% in all PD patients. Prion proteins (PrPs), which are expressed in both neurons and glial cells of the brain, are believed to be correlated with abnormal neurological functions, although their role in PD-related sleeping disorders remains unclear. We therefore investigated the expressional profiles of PrP in PD patients with RBD. Quantitative real-time polymerase chain reaction and western blotting were used to detect the mRNA and protein levels of PrP, respectively, in the cerebrospinal fluid (CSF) of PD patients with RBD, PD patients without sleeping disorder, and healthy people (N = 23 each). We investigated the correlation between the CSF PrP level and sleeping behavior in PD patients. Patients with PD complicated with RBD had significantly elevated CSF PrP expression levels (both mRNA and protein) compared with either PD patients without sleeping disorder or healthy individuals (P < 0.05 in both cases). There is elevated expression of PrP in the CSF of PD patients with RBD. This may benefit the diagnosis of PD-related RBD.
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Affiliation(s)
- W J Zhang
- Department of Neurology, Dongying People's Hospital, Dongying, China
| | - X L Shang
- Department of Neurology, First Affiliated Hospital, China Medical University, Shenyang, China
| | - J Peng
- Department of Neurology, Dongying People's Hospital, Dongying, China
| | - M H Zhou
- Department of ICU, Dongying People's Hospital, Dongying, China
| | - W J Sun
- Department of Policlinic, Dongying People Hospital, Dongying, China
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Huo X, Chen LL, Hong L, Xiang LH, Tang FY, Chen SH, Gao Q, Chen C, Dai QG, Sun CW, Xu K, Dai WJ, Qi X, Li CC, Yu HY, Zhou Y, Huang HD, Pan XY, Xu CS, Zhou MH, Bao CJ. Economic burden and its associated factors of hospitalized patients infected with A (H7N9) virus: a retrospective study in Eastern China, 2013-2014. Infect Dis Poverty 2016; 5:79. [PMID: 27580946 PMCID: PMC5007809 DOI: 10.1186/s40249-016-0170-5] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/15/2016] [Accepted: 07/11/2016] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND H7N9 continues to cause human infections and remains a pandemic concern. Understanding the economic impacts of this novel disease is important for making decisions on health resource allocation, including infectious disease prevention and control investment. However, there are limited data on such impacts. METHODS Hospitalized laboratory-confirmed H7N9 patients or their families in Jiangsu Province of China were interviewed. Patients' direct medical costs of hospitalization were derived from their hospital bills. A generalized linear model was employed to estimate the mean direct medical costs of patients with different characteristics. RESULTS The mean direct cost of hospitalization for H7N9 was estimated to be ¥ 71 060 (95 % CI, 48 180-104 820), i.e., US$ 10 996 (95 % CI, 7 455-16 220), and was ¥12 060 (US$ 1 861), ¥136 120 (US$ 21 001) and ¥218 610 (US$ 33 728) for those who had mild or severe symptoms or who died, respectively. The principal components of the total fees differed among patients with different disease severity, although medication fees were always the largest contributors. Disease severity, proportion of reimbursement and family member monthly average income were identified as the key factors that contributed to a patient's direct medical cost of hospitalization. CONCLUSIONS The direct medical costs of hospitalized patients with H7N9 are significant, and far surpass the annual per capita income of Jiangsu Province, China. The influencing factors identified should be taken into account when developing related health insurance policies and making health resource allocation. TRIAL REGISTRATION Not applicable. This is a survey study with no health care intervention implemented on human participants.
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Affiliation(s)
- Xiang Huo
- Department of Acute Infectious Disease, Jiangsu Provincial Center for Disease Control and Prevention, 172 Jiang-su Rd, Nanjing, 210009, China
| | - Li-Ling Chen
- Suzhou Center for Disease Prevention and Control, Suzhou, China
| | - Lei Hong
- Nanjing Municipal Center for Disease Control and Prevention, Nanjing, China
| | - Lun-Hui Xiang
- Baoshan District Center for Disease Control and Prevention, Shanghai, China
| | - Fen-Yang Tang
- Department of Acute Infectious Disease, Jiangsu Provincial Center for Disease Control and Prevention, 172 Jiang-su Rd, Nanjing, 210009, China
| | - Shan-Hui Chen
- Wuxi Center for Disease Control and Prevention, Wuxi, China
| | - Qiang Gao
- Huaian Center for Disease Control and Prevention, Huaian, China
| | - Cong Chen
- Changzhou Center for Disease Control and Prevention, Changzhou, China
| | - Qi-Gang Dai
- Department of Acute Infectious Disease, Jiangsu Provincial Center for Disease Control and Prevention, 172 Jiang-su Rd, Nanjing, 210009, China
| | - Chuan-Wu Sun
- Xuzhou Center for Disease Control and Prevention, Xuzhou, China
| | - Ke Xu
- Department of Acute Infectious Disease, Jiangsu Provincial Center for Disease Control and Prevention, 172 Jiang-su Rd, Nanjing, 210009, China
| | - Wen-Jun Dai
- Taizhou Center for Disease Control and Prevention, Taizhou, China
| | - Xian Qi
- Department of Acute Infectious Disease, Jiangsu Provincial Center for Disease Control and Prevention, 172 Jiang-su Rd, Nanjing, 210009, China
| | - Chang-Cheng Li
- Yancheng Center for Disease Control and Prevention, Yancheng, China
| | - Hui-Yan Yu
- Department of Acute Infectious Disease, Jiangsu Provincial Center for Disease Control and Prevention, 172 Jiang-su Rd, Nanjing, 210009, China
| | - Yin Zhou
- Zhenjiang Center for Disease Prevention and Control, Zhenjiang, China
| | - Hao-Di Huang
- Department of Acute Infectious Disease, Jiangsu Provincial Center for Disease Control and Prevention, 172 Jiang-su Rd, Nanjing, 210009, China
| | - Xing-Yang Pan
- Yangzhou Center for Disease Control and Prevention, Yangzhou, China
| | - Chang-Sha Xu
- Suqian Municipal Center for Disease Control and Prevention, Suqian, China
| | - Ming-Hao Zhou
- Department of Acute Infectious Disease, Jiangsu Provincial Center for Disease Control and Prevention, 172 Jiang-su Rd, Nanjing, 210009, China
| | - Chang-Jun Bao
- Department of Acute Infectious Disease, Jiangsu Provincial Center for Disease Control and Prevention, 172 Jiang-su Rd, Nanjing, 210009, China.
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Li CX, Zhang YM, Dong YD, Zhou MH, Zhang HD, Chen HN, Tian Y, Yang WF, Wu XQ, Chu HL, Zhao TY. An Unmanned Aerial Vehicle-Mounted Cold Mist Spray of Permethrin and Tetramethylfluthrin Targeting Aedes albopictus in China. J Am Mosq Control Assoc 2016; 32:59-62. [PMID: 27105218 DOI: 10.2987/moco-32-01-59-62.1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Aedes albopictus is the primary vector of dengue fever and dengue hemorrhagic fever in China. Although there are previous studies on the application of adulticides to control this species, the application methods have either been back-pack or vehicle-mounted systems. However, many sites are too large to be effectively treated with back-pack sprayers, and the lack of roads restricts the use of vehicle-mounted sprayers. This paper provides the first study of using unmanned aerial vehicles to conduct cold mist sprays on Ae. albopictus habitats. A spray containing 4% permethrin and 1% tetramethylfluthrin was applied at an effective application rate of 9.0 mg/m(2). This method reduced Ae. albopictus populations by more than 90%. The results indicate this novel spray system is a powerful method to achieve a rapid decline of mosquito population in Ae. albopictus habitats in China.
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Affiliation(s)
- Chun-Xiao Li
- 1 Department of Vector Biology and Control, State Key Laboratory of Pathogen and Biosecurity, Institute of Microbiology and Epidemiology, Beijing 100071, China
- 5 These authors contributed equally and should be regarded as joint first authors
| | - Ying-Mei Zhang
- 1 Department of Vector Biology and Control, State Key Laboratory of Pathogen and Biosecurity, Institute of Microbiology and Epidemiology, Beijing 100071, China
- 5 These authors contributed equally and should be regarded as joint first authors
| | - Yan-De Dong
- 1 Department of Vector Biology and Control, State Key Laboratory of Pathogen and Biosecurity, Institute of Microbiology and Epidemiology, Beijing 100071, China
| | - Ming-Hao Zhou
- 1 Department of Vector Biology and Control, State Key Laboratory of Pathogen and Biosecurity, Institute of Microbiology and Epidemiology, Beijing 100071, China
| | - Heng-Duan Zhang
- 1 Department of Vector Biology and Control, State Key Laboratory of Pathogen and Biosecurity, Institute of Microbiology and Epidemiology, Beijing 100071, China
| | - Hong-Na Chen
- 2 Department of Disinfection and Vector Control, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China
| | - Ye Tian
- 2 Department of Disinfection and Vector Control, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China
| | - Wei-Fang Yang
- 2 Department of Disinfection and Vector Control, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China
| | - Xiao-Qun Wu
- 3 Department of Hygiene, Yixing Center for Disease Control and Prevention, Yixing 214206, China
| | - Hong-Liang Chu
- 2 Department of Disinfection and Vector Control, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China
- 4 To whom correspondence should be addressed
| | - Tong-Yan Zhao
- 1 Department of Vector Biology and Control, State Key Laboratory of Pathogen and Biosecurity, Institute of Microbiology and Epidemiology, Beijing 100071, China
- 4 To whom correspondence should be addressed
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Zhu HW, Jiang D, Xie ZY, Zhou MH, Sun DY, Zhao YG. Effects of stathmin 1 silencing by siRNA on sensitivity of esophageal cancer cells Eca-109 to paclitaxel. Genet Mol Res 2015; 14:18695-702. [PMID: 26782519 DOI: 10.4238/2015.december.28.18] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.1] [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
We investigated the effects of stathmin 1 (STMN1) silencing by small interfering (siRNA) on the sensitivity of esophageal cancer cells Eca-109 to paclitaxel. STMN1 siRNA was transiently transfected into Eca-109 cells. The effects of transfection were detected by quantitative polymerase chain reaction and western blotting. The effects of STMN1 silencing by siRNA on the sensitivity of esophageal cancer cells Eca-109 to paclitaxel was tested by MTT and colony formation assays. Hoechst 33258 nuclear staining was used to investigate the differences in Eca-109 cell apoptosis induced by paclitaxel. STMN1 siRNA was successfully transfected and the expression of STMN1 was inhibited. The sensitivity of STMN1 siRNA-transfected Eca-109 cells to paclitaxel was significantly increased (P < 0.01). The apoptosis of Eca-109 cells significantly increased following treatment with paclitaxel (P < 0.01). STMN1 silencing by siRNA may enhance the sensitivity of esophageal cancer cells Eca-109 to paclitaxel and induce apoptosis.
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Affiliation(s)
- H W Zhu
- Department of Gastroenterology, Guangzhou General Hospital of the Guangzhou Military Command of the People's Liberation Army, Guangzhou, China
| | - D Jiang
- Department of Gastroenterology, Guangzhou General Hospital of the Guangzhou Military Command of the People's Liberation Army, Guangzhou, China
| | - Z Y Xie
- Department of Gastroenterology, Guangzhou General Hospital of the Guangzhou Military Command of the People's Liberation Army, Guangzhou, China
| | - M H Zhou
- Department of Gastroenterology, Guangzhou General Hospital of the Guangzhou Military Command of the People's Liberation Army, Guangzhou, China
| | - D Y Sun
- Department of Gastroenterology, Guangzhou General Hospital of the Guangzhou Military Command of the People's Liberation Army, Guangzhou, China
| | - Y G Zhao
- Department of Gastroenterology, Guangzhou General Hospital of the Guangzhou Military Command of the People's Liberation Army, Guangzhou, China
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21
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Qi X, Cui L, Xu K, Wu B, Tang F, Bao C, Zhu Y, Zhou MH, Wang H. Avian influenza A(H7N9) virus infection in pregnant woman, China, 2013. Emerg Infect Dis 2014; 20:333-4. [PMID: 24457138 PMCID: PMC3901503 DOI: 10.3201/eid2002.131109] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022] Open
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22
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Zhang JC, Liu WD, Liang Q, Hu JL, Norris J, Wu Y, Bao CJ, Tang FY, Huang P, Zhao Y, Yu RB, Zhou MH, Shen HB, Chen F, Peng ZH. Spatial distribution and risk factors of influenza in Jiangsu province, China, based on geographical information system. Geospat Health 2014; 8:429-435. [PMID: 24893019 DOI: 10.4081/gh.2014.31] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Influenza poses a constant, heavy burden on society. Recent research has focused on ecological factors associated with influenza incidence and has also studied influenza with respect to its geographic spread at different scales. This research explores the temporal and spatial parameters of influenza and identifies factors influencing its transmission. A spatial autocorrelation analysis, a spatial-temporal cluster analysis and a spatial regression analysis of influenza rates, carried out in Jiangsu province from 2004 to 2011, found that influenza rates to be spatially dependent in 2004, 2005, 2006 and 2008. South-western districts consistently revealed hotspots of high-incidence influenza. The regression analysis indicates that railways, rivers and lakes are important predictive environmental variables for influenza risk. A better understanding of the epidemic pattern and ecological factors associated with pandemic influenza should benefit public health officials with respect to prevention and controlling measures during future epidemics.
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23
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Dulong C, Fang YJ, Gest C, Zhou MH, Patte-Mensah C, Mensah-Nyagan AG, Vannier JP, Lu H, Soria C, Cazin L, Mei YA, Varin R, Li H. The small GTPase RhoA regulates the expression and function of the sodium channel Nav1.5 in breast cancer cells. Int J Oncol 2013; 44:539-47. [PMID: 24337141 DOI: 10.3892/ijo.2013.2214] [Citation(s) in RCA: 15] [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] [Received: 09/23/2013] [Accepted: 11/06/2013] [Indexed: 11/05/2022] Open
Abstract
Voltage-gated Na+ channels (VGSCs) are highly expressed in several types of carcinomas including breast, prostate and lung cancers as well as in mesothelioma and cervical cancers. Although the VGSCs activity is considered crucial for the potentiation of cancer cell migration and invasion, the mechanisms responsible for their functional expression and regulation in cancer cells remain unclear. In the present study, the role of the small GTPase RhoA in the regulation of expression and function of the Nav1.5 channel in the breast cancer cell lines MDA-MB 231 and MCF-7 was investigated. RhoA silencing significantly reduced both Nav1.5 channel expression and sodium current indicating that RhoA exerts a stimulatory effect on the synthesis of an active form of Nav1.5 channel in cancer cells. The inhibition of Nav1.5 expression dramatically reduced both cell invasion and proliferation. In addition, a decrease of RhoA protein levels induced by Nav1.5 silencing was observed. Altogether, these findings revealed: i) the key role of the small GTPase RhoA in upregulation of Nav1.5 channel expression and tumor aggressiveness, and ii) the existence of a positive feedback of Nav1.5 channels on RhoA protein levels.
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Affiliation(s)
- C Dulong
- MERCI, EA 3829, Faculté de Médecine et de Pharmacie, Université de Rouen, Rouen, France
| | - Y J Fang
- Center for Brain Science Research, School of Life Science, Fudan University, P.R. China
| | - C Gest
- MERCI, EA 3829, Faculté de Médecine et de Pharmacie, Université de Rouen, Rouen, France
| | - M H Zhou
- Center for Brain Science Research, School of Life Science, Fudan University, P.R. China
| | - C Patte-Mensah
- Unité de Physiopathologie et Médecine Translationnelle, Faculté de Médecine, Strasbourg, France
| | - A G Mensah-Nyagan
- Unité de Physiopathologie et Médecine Translationnelle, Faculté de Médecine, Strasbourg, France
| | - J P Vannier
- MERCI, EA 3829, Faculté de Médecine et de Pharmacie, Université de Rouen, Rouen, France
| | - H Lu
- INSERM UMR-S 728, l'Institut Hématologie, Université Paris 7 Diderot, France
| | - C Soria
- MERCI, EA 3829, Faculté de Médecine et de Pharmacie, Université de Rouen, Rouen, France
| | - L Cazin
- MERCI, EA 3829, Faculté de Médecine et de Pharmacie, Université de Rouen, Rouen, France
| | - Y A Mei
- Center for Brain Science Research, School of Life Science, Fudan University, P.R. China
| | - R Varin
- MERCI, EA 3829, Faculté de Médecine et de Pharmacie, Université de Rouen, Rouen, France
| | - H Li
- MERCI, EA 3829, Faculté de Médecine et de Pharmacie, Université de Rouen, Rouen, France
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Qi X, Qian YH, Bao CJ, Guo XL, Cui LB, Tang FY, Ji H, Huang Y, Cai PQ, Lu B, Xu K, Shi C, Zhu FC, Zhou MH, Wang H. Probable person to person transmission of novel avian influenza A (H7N9) virus in Eastern China, 2013: epidemiological investigation. BMJ 2013; 347:f4752. [PMID: 23920350 PMCID: PMC3805478 DOI: 10.1136/bmj.f4752] [Citation(s) in RCA: 147] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
OBJECTIVE To determine whether the novel avian influenza H7N9 virus can transmit from person to person and its efficiency. DESIGN Epidemiological investigations conducted after a family cluster of two patients with avian H7N9 in March 2013. SETTING Wuxi, Eastern China. PARTICIPANTS Two patients, their close contacts, and relevant environments. Samples from the patients and environments were collected and tested by real time reverse transcriptase-polymerase chain reaction (rRT-PCR), viral culture, and haemagglutination inhibition assay. Any contacts who became ill had samples tested for avian H7N9 by rRT-PCR. Paired serum samples were obtained from contacts for serological testing by haemagglutination inhibition assays. MAIN OUTCOMES MEASURES Clinical data, history of exposure before the onset of illnesses, and results of laboratory testing of pathogens and further analysis of sequences and phylogenetic tree to isolated strains. RESULTS The index patient became ill five to six days after his last exposure to poultry. The second patient, his daughter aged 32, who provided unprotected bedside care in the hospital, had no known exposure to poultry. She developed symptoms six days after her last contact with her father. Two strains were isolated successfully from the two patients. Genome sequence and analyses of phylogenetic trees showed that both viruses were almost genetically identical. Forty three close contacts of both patients were identified. One had mild illness but had negative results for avian H7N9 by rRT-PCR. All 43 close contacts tested negative for haemagglutination inhibition antibodies specific for avian H7N9. CONCLUSIONS The infection of the daughter probably resulted from contact with her father (the index patient) during unprotected exposure, suggesting that in this cluster the virus was able to transmit from person to person. The transmissibility was limited and non-sustainable.
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Affiliation(s)
- Xian Qi
- Department of Acute Infectious Disease Control and Prevention, Jiangsu Province Center for Disease Control and Prevention, Nanjing, Jiangsu 210009, China
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25
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Du DS, Zhu T, Ren ST, Xie GL, Li SB, Chu DC, Liu XT, Liu M, Ma XB, Zhou MH, Zhu DN, Deng ZX, Wang J. γ-Aminobutyric acid-mediated neurotransmission in cerebellar-hypothalamic circuit attenuates gastric mucosal injury induced by ischemia-reperfusion. Neurogastroenterol Motil 2013; 25:313-e249. [PMID: 23279161 DOI: 10.1111/nmo.12062] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/08/2023]
Abstract
BACKGROUND Excessive greater splanchnic nerve (GSN) activation contributes to the progression of gastric ischemia-reperfusion (GI-R) injury. This study was designed to investigate the protective mechanism of cerebellar fastigial nucleus (FN) stimulation against GI-R injury. METHODS The GI-R injury model was induced in rats by clamping the celiac artery for 30 min, and then reperfusion for 30 min, 1, 3, 6, or 24 h, respectively. KEY RESULTS Microinjection of L-Glu (3, 6, 12 μg) into the FN dose-dependently attenuated GI-R injury and GSN activity. In addition, there was an enhancement of gastric mucosal blood flow in GI-R rats. Pretreatment with the glutamic acid decarboxylase antagonist into the FN, the GABAA receptor antagonist into the lateral hypothalamic area or lesion of superior cerebellar peduncle all reversed the protective effects of the FN stimulation. Furthermore, the FN stimulation reduced the TUNEL-positive gastric mucosal cell and Bax-positive gastric mucosal cell in GI-R rats. CONCLUSIONS & INFERENCES These results indicate that the protective effects of the FN stimulation against GI-R injury may be mediated by attenuation of the excessive GSN activation, gastric mucosal cell apoptosis, and Bax expression in GI-R rats.
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Affiliation(s)
- D S Du
- Department of Physiology and Pathophysiology, Shanghai Medical College of Fudan University, Shanghai, China
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26
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Ji H, Li L, Liu Y, Ge H, Wang X, Hu J, Wu B, Fu J, Zhang Z, Chen X, Zhang M, Ding Q, Xu W, Tang F, Zhou M, Wang H, Zhu F. Seroepidemiology of human enterovirus71 and coxsackievirusA16 in Jiangsu province, China. Virol J 2012; 9:248. [PMID: 23102275 PMCID: PMC3545860 DOI: 10.1186/1743-422x-9-248] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.3] [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: 12/22/2011] [Accepted: 09/25/2012] [Indexed: 11/29/2022] Open
Abstract
Background The major etiology of hand, foot and mouth disease (HFMD) is infection with human enterovirus A (HEV-A). Among subtypes of HEV-A, coxsackievirusA16 (CoxA16) and enterovirus 71 (EV71) are major causes for recurrent HFMD among infants and children in Jiangsu Province, mainland China. Here, we analyzed maternal antibodies between prenatal women and their neonates, to determine age-specific seroprevalence of human EV71 and CoxA16 infections in infants and children aged 0 to 15 years. The results may facilitate the development of immunization against HFMD. Methods This study used cross-section of 40 pairs of pregnant women and neonates and 800 subjects aged 1 month to 15 years old. Micro-dose cytopathogenic effects measured neutralizing antibodies against EV71 and CoxA16. Chi-square test compared seroprevalence rates between age groups and McNemar test, paired-Samples t-test and independent-samples t-test analyzed differences of geometric mean titers. Results A strong correlation between titers of neutralizing antibody against EV71 and CoxA16 in prenatal women and neonates was observed (rEV71 = 0.67, rCoxA16 = 0.56, respectively, p < 0.05). Seroprevalence rates of anti-EV71 antibody gradually decreased with age between 0 to 6 months old, remained low between 7 to 11 months (5.0–10.0%), and increased between 1 and 4 years (22.5–87.5%). Age-specific seroprevalence rates of anti-EV71 antibody stabilized in >80% of children between 5 to 15 years of age. However, seroprevalence rates of anti-CoxA16 antibody were very low (0.0–13.0%) between 0 to 6 months of age, gradually increased between 7 months to 4 years (15.0–70.0%), and stabilized at 54.0% (108/200) between 5 to 15 years. Seroprevalence rates against EV71 and CoxA16 were low under 1 year (0.0–10.0%), and showed an age dependent increase with high seroprevalence (52.5–62.5%) between 4 and10 years of age. Conclusions Concomitant infection of EV71 and CoxA16 was common in Jiangsu Province. Therefore, development of bivalent vaccine against both EV71 and CoxA16 is critical. The optimal schedule for vaccination may be 4 to11 months of age.
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Affiliation(s)
- Hong Ji
- Jiangsu Provincial Center for Disease Control and Prevention, No,172, Jiangsu Road, Gulou District, Nanjing, 210009 Jiangsu Province, China
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Guo ZR, Hu XS, Wu M, Zhou MH, Zhou ZY. [A prospective study on the association between dyslipidemia and hypertension]. Zhonghua Liu Xing Bing Xue Za Zhi 2009; 30:554-558. [PMID: 19957617] [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 discuss the risks of hypertension development with relation to the level of lipid variables among populations who had normal blood pressure at baseline study. METHODS In April 2000, under the support of project "prevention of metabolic syndrome and multi-metabolic disorders in Jiangsu province", a cohort study was performed to obtain the baseline data among 8685 persons from age 34 to 74. In June of 2006, a follow-up investigation was carried out among those who had been in the study for 5 years after the baseline study started. 2603 persons who met the selection criteria and showed normal blood pressure during baseline study, were recruited in this investigation. The interval from the baseline to the follow-up studies was 6.38 years on average. Relationship between the risk of developing hypertension and the baseline level of lipid variables were analyzed. RESULTS Relations between baseline lipid levels and the incidence of hypertension during the follow-up was discovered. In gender and age adjusted model, the lipid variables were all associated with hypertension (trend test, P<0.01). In multivariable-adjusted model, HDL-C [aRR=0.71 (95%CI: 0.61-0.99)], non-HDL-C [aRR=1.28 (95%CI: 1.14-1.83)], TC/HDL-C ratio [aRR=1.41 (95%CI: 1.25-2.03)] and TG [aRR=1.49 (95%CI: 1.30-2.13)] were again associated with hypertension (trend test, P<0.05). Even the aRR was much weakened after the baseline SBP, DBP were adjusted with Cox model, the significant relation of hypertension to HDL-C, TC/HDL-C ratio and TG still existed. Excluding the two factors of obesity (BMI> or =28) and diabetes which had been recognized in marked linking with hypertension, lipid variables were still associated with hypertension. CONCLUSION Dyslipidemia might occur before being hypertensive. Hypertension was associated with HDL-C, TC/HDL-C and TG or even exclusion of obesity, diabetes and factors of smoking and drinking or baseline level of SBP, DBP were adjusted.
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Affiliation(s)
- Zhi-Rong Guo
- School of Radiological Medicine and Public Health, Soochow University, Suzhou, China
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Abstract
The abundant and indiscriminant disposal of waste tyres has caused both health and environmental problems. In this work, we provide a new way to dispose off waste tyres by reusing the waste tyre rubber (WTR) for oil absorptive material production. To investigate this feasibility, a series of absorbents were prepared by graft copolymerization-blending method, using waste tyre rubber and 4-tert-butylstyrene (tBS) as monomers. Divinylbenzene (DVB) and benzoyl peroxide (BPO) were employed as crosslinker and initiator, respectively. The existence of graft-blends (WTR-g-tBS) was determined by FTIR spectrometry and verified using thin-layer chromatography (TLC). In addition, the thermal properties of WTR-g-tBS were confirmed by a thermogravimetric analyzer (TGA). Oil absorbency of the grafted-blends increased with increases in either feed ratio of WTR to tBS or DVB concentration. This absorbency reached a maximum of 24.0gg(-1) as the feed ratio and DVB concentration were 60/40 and 1wt%, respectively, after which it decreased. At other ratios and concentrations the absorbency decreased. The gel fraction of grafted-blends increased with increasing concentration of DVB. Oil-absorption processes in pure toluene and crude oil diluted with toluene were found to adhere to first-order absorption kinetics. Furthermore, the oil-absorption rate in diluted crude oil was observed to be lower than pure toluene.
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Affiliation(s)
- B Wu
- College of Environmental Science and Engineering, Donghua University, Shanghai 201620, People's Republic of China.
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Zhou MH, Yu YQ, Duan GL, Cheng WB, Xu CJ, Liu X. [Pharmacokinetics and bioavailability of clinafloxacin in rats]. Yao Xue Xue Bao 2001; 36:134-6. [PMID: 12579882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 02/28/2023]
Abstract
AIM To study the pharmacokinetics and bioavailability of clinafloxacin in rats. METHODS The drug concentration was determined by HPLC. The main pharmacokinetic parameters were obtained by 3P87 program. An RP-C18 was used as the stationary phase. The mobile phase was a mixture of acetonitrile-0.05 mol.L-1 citric acid triethylamine (pH 2.5) (20:80). The flow rate was 1.0 mL.min-1. The UV absorbance detector was set at 300 nm. RESULTS A good linearity was obtained from 0.03-20 micrograms.mL-1 of clinafloxacin in rat plasma with gamma = 0.9998. The plasma concentration--time curve of clinafloxacin conformed to one compartment open model. After ig administration of 50 mg.kg-1 and 100 mg.kg-1 dose of clinafloxacin in six rats, mean Cmax and AUC values increased in proportion to dose. Mean T1/2 appeared to be independent of dose. Mean AUC was 65 +/- 6 and 27 +/- 4 micrograms.h.mL-1 respectively after i.v. and ig administration of 100 mg.kg-1 dose. The extent of bioavailability (F) of clinafloxacin was 42%. CONCLUSION The results of the pharmacokinetic study of clinafloxacin showed that it exhibited first order kinetic characteristics and the bioavailability is low.
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Affiliation(s)
- M H Zhou
- Department of Analytical Chemistry, School of Pharmacy, Shanghai Medical University, Shanghai 200032, China.
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30
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Abstract
OBJECTIVE To determine the direct action of RU486 on endometrial cell proliferation and to differentiate whether the antioxidant or the antiprogesterone property of RU486 is predominately responsible for its effect on cell growth. DESIGN In vitro study comparing the effects of RU486 (antiprogesterone and antioxidant), reduced RU486 (antioxidant), ZK112,993 (antiprogesterone), and lazaroid U74,500A (antioxidant) on endometrial cell growth. The human endometrial cell line EM42 was used in transient transfection assays to confirm the relative antiprogesterone potency of the various compounds. SETTING Academic medical center PATIENT(S) Women presenting with pelvic pain or infertility and diagnosed with endometriosis at time of surgery or women desiring tubal ligation with a normal pelvis (controls). INTERVENTION(S) Endometrial cell cultures were treated with RU486, reduced RU486, lazaroid U74,500A, and ZK112,993. MAIN OUTCOME MEASURE(S) Tritiated thymidine incorporation was used to assess cell growth. Inhibition of progesterone induction of transiently transfected reporter plasmids was used to measure antiprogesterone activity of compounds studied. RESULT(S) RU486 reduced cell growth in a dose-dependent fashion of the endometrial cell lines EM42 and RL95-2 and of endometrial and endometriosis cells from primary culture. After being reduced, RU486 lost most of its antiprogesterone activity but retained its antiproliferative properties. ZK112,993 was similar in potency to RU486 as a progesterone antagonist but did not significantly modify endometrial cell growth. Lazaroid U74,500A was devoid of antiprogesterone activity but was shown to be a potent antiproliferative agent. CONCLUSION(S) RU486 has a direct inhibitory effect on human endometrial cell growth. This activity appears to be at least partly mediated through its antioxidant property.
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Affiliation(s)
- A A Murphy
- Department of Gynecology and Obstetrics, Emory University School of Medicine, Atlanta, Georgia 30322, USA
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31
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Hu PJ, Li YY, Zhou MH, Chen MH, Du GG, Huang BJ, Mitchell HM, Hazell SL. Helicobacter pylori associated with a high prevalence of duodenal ulcer disease and a low prevalence of gastric cancer in a developing nation. Gut 1995; 36:198-202. [PMID: 7883217 PMCID: PMC1382404 DOI: 10.1136/gut.36.2.198] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
This study examines the relationship between Helicobacter pylori infection and peptic ulcer disease and gastric cancer--in particular, the presence or absence of bacteria, the grading of gastritis, and the degree of inflammation in the antral and oxyntic mucosae. The grading of gastritis and the detection of H pylori were determined by histology using the Sydney system. Of the 1006 patients examined, 34.5% had duodenal ulcer disease, 3.5% gastric ulcer disease, and 2% with coexistent ulceration. Most patients (50.2%) were classified as having non-ulcer dyspepsia. Altogether 2.4% of patients had gastric cancer and two further patients had carcinoma in the gastric stump. Of the ulcer disease patients, 87.2% had histological evidence of H pylori infection. After patients who had taken antibiotics or bismuth compounds in the preceding four weeks were excluded, 98.9% of the duodenal ulcer disease, 100% of the gastric ulcer disease, and 100% of the coexistent ulcer disease patients had evidence of H pylori infection. In patients with gastric cancer who had not taken antimicrobial agents in the four weeks before endoscopy, 83.3% had evidence of H pylori infection. Thus, there was a high rate of duodenal ulcer disease and a low rate of gastric ulcer disease in southern China, an area of low gastric cancer mortality. There was a specific topographical relationship between H pylori, the histological response, and gastroduodenal disease. Our data suggest that the status of a nation as either 'developed' or 'developing' can not be used to predict the upper gastrointestinal disease profile of its population.
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Affiliation(s)
- P J Hu
- Affiliated First Hospital, Sun Yat-Sen University of Medical Science, People's Republic of China
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32
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Abstract
Upper esophageal gastric heterotopia (inlet patch) has not been reported in endoscopic series from China. We describe the occurrence of endoscopically and histologically typical inlet patches in two endoscopic surveys of asymptomatic adults in northern China. Because rapid endoscopic protocols were used, the 0.3-0.4% prevalence of inlet patch in these surveys probably represents a minimum figure for adults in this population.
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Affiliation(s)
- G Q Wang
- Department of Chest Surgery, Cancer Hospital, Chinese Academy of Medical Sciences, Beijing
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33
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Zhou MH, Ren F, Zhao LP. Identification of a 12.5-kD protein from caudate-putamen nucleus as a dopaminergic neuronotrophic factor. Sci China B 1994; 37:1360-5. [PMID: 7865127] [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: 01/27/2023]
Abstract
The effect of the extract from caudate-putamen nucleus of newborn rats (CPe) on the dopaminergic (DA) neurons has been studied. An MTT colorimetric microassay measuring optical densities for the growth of DA neuron cultures reveals a significant increase in growth for cultures with CPe as compared to those without CPe (p < 0.05). Rhodamine retrograde-prelabelled DA neurons were cultured on a Phastgel containing all the electrophoretically separated protein bands from CPe, and able to fish out from it their own trophic factor, a 12.5-kD protein band. The survived neurons at the 12.5-kD protein band were immunostained positive with anti-dopamine antibody. Co-culturing the 12.5 kD-containing gel strip with explants from substantia nigra at a close distance for a week revealed anti-dopamine immunopositive neurites outgrowing from the explants only towards the 12.5-kD gel strip. These results indicate that a 12.5-kD protein from the CPe is capable of maintaining the survival of DA neurons of the substantia nigra and promoting their neurite outgrowth.
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Affiliation(s)
- M H Zhou
- Department of Anatomy, University of Hong Kong
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34
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Hu PJ, Mitchell HM, Li YY, Zhou MH, Hazell SL. Association of Helicobacter pylori with gastric cancer and observations on the detection of this bacterium in gastric cancer cases. Am J Gastroenterol 1994; 89:1806-10. [PMID: 7942672] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
OBJECTIVE The aim of the present study was to assess the prevalence of Helicobacter pylori infection in Chinese patients with advanced gastric cancer, to compare this with a matched control population, and to identify factors that may effect the detection of H. pylori in patients with gastric cancer. METHODS Fifty-one patients with advanced gastric cancer and 102 age/sex-matched controls were included in the study. For the detection of H. pylori, both biopsy specimens and sera were collected from the patients, whereas only sera were collected from the controls. A strong association was shown between H. pylori and both intestinal and diffuse type gastric cancer. Antibiotic intake in the month before endoscopic examination, the site of collection of biopsy specimens, and tumor size were identified as factors that may reduce the histological detection of H. pylori in gastric cancer patients. CONCLUSIONS These data provide supporting evidence of an association between H. pylori infection and gastric cancer and indicate that, in certain circumstances, histological evaluation of H. pylori infection in gastric cancer cases may be less reliable than serological evaluation.
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Affiliation(s)
- P J Hu
- First Affiliated Hospital, Sun Yat-Sen University of Medical Science, Guangzhou, China
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35
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Tang XY, Zhou MH, Zhang ZH, Zhang YB. [Active constituents of Commelina communis L]. Zhongguo Zhong Yao Za Zhi 1994; 19:297-8, inside backcover. [PMID: 7945872] [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: 01/28/2023]
Abstract
According to the pharmacological results five compounds were isolated from the herb of Commelina communis. Based on physico-chemical constants and spectral data, four of them were identified as n-triacontanol, p-hydroxycinnamic acid, daucosteril and D-mannitol. p-hydroxycinnamic acid shows antibacterial activity and D-mannitol shows antitussive effect.
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Affiliation(s)
- X Y Tang
- Hubei College of Traditional Chinese Medicine, Wuhan 430061
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36
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Zhou MH, Ren F. [Growth inhibitory action of RGNTF-McAb on human retinoblastoma cell line Y-79]. Zhonghua Yan Ke Za Zhi 1993; 29:349-52. [PMID: 8020378] [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: 01/28/2023]
Abstract
The monoclonal antibody against the retinal ganglion neuronotrophic factor (RGNTF-McAb) was used in immunostaining of the Western blotting membrane separated from extract of human retinoblastoma cell line Y-79 to find that the latter contained a 30KD protein which was immunologically similar to the RGNTF secreted from the tectum of rat. The effect of different concentrations of RGNTF-McAb on the growth of Rb cells in cultures of different seeding concentrations was studied, revealing that the growth inhibitory action of RGNTF-McAb increased with increasing concentrations, up to 67% inhibition. Morphologically the growth and division of Rb cells were significantly inhibited as compared to the controls. The RGNTF-anti-idiotypic antibody was used for the localization of the RGNTF receptor, which the immunoreactive positive staining indicated to be on the surface of Rb cell membrane. The RGNTF-McAb could thus neutralize the RGNTF and inhibit growth of the Rb cells. These findings support the application of RGNTF-McAb to the treatment of retinoblastoma.
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Affiliation(s)
- M H Zhou
- Department of Anatomy, University of Hong Kong
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37
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Ren F, Zhou MH. [Neuronotrophic factors and proto-oncogene]. Sheng Li Ke Xue Jin Zhan 1993; 24:212-6. [PMID: 8159989] [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: 01/29/2023]
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38
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Zhou MH, Ren F, Qiu PX. Changes in rat retinal ganglion neuronotrophic factor and its mRNA during postnatal development. Sci China B 1993; 36:305-13. [PMID: 8397801] [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: 01/30/2023]
Abstract
The monoclonal antibody specific to the retinal ganglion neuronotrophic factor (RGNTF) was used to localize and quantify the presence and amount of RGNTF during the postnatal development of the visual system in the rat. The results showed that in the 0-1-day age group, neurons at the superficial layers and deep part of superior colliculus, and as well as retinal ganglion cells were strongly stained with their RGNTF contents quantified to be 88%, 100% and 100%, respectively. In the 5-6-day age group, RGNTF contents were significantly reduced to merely 50%, 30% and 80%, respectively. The RGNTF contents reduced further to 0% as age increased to 2 years old. A 32P-DNA probe specific to the first 7 amino acid sequence of RGNTF at its N-terminal end was synthesized and used for in situ hybridization studies. The results revealed that strong hybridized signals (i.e. mRNA of RGNTF) were localized in the same neurons in the superficial layers and deep part of the superior colliculus only in the 0-1-day age group, and that no signals were found in retinae of all postnatal age groups. The significant reduction of RGNTF may be related to the RGC death during postnatal development. Neurons at the superficial layers and deep part of the superior colliculus are the sources of RGNTF for RGCs in the postnatal retina.
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Affiliation(s)
- M H Zhou
- Department of Anatomy, University of Hong Kong
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39
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Ren F, Zhou MH. [Immunotherapy of human retinoblastoma with RGNTF-monoclonal antibody using nude mice as model]. Zhonghua Zhong Liu Za Zhi 1992; 14:323-6. [PMID: 1291287] [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: 12/26/2022]
Abstract
Retinoblastoma in nude mice as an animal model was developed by injecting cultured human retinoblastoma cell line(Rb) Y79 into the anterior chamber of eyeball. It was treated by direct injection of RGNTF-McAb into the Rb tumor. Ten out of 30 eyeballs with Rb inoculation did not develop tumor (32% inhibition) if Rb cell suspension was mixed with the RGNTF-McAb before injection; whereas in the control, all 40 but 3 eyeballs developed tumor (7%) when Rb cell suspension alone had been injected. This 32% of inhibition of Rb tumor formation by RGNTF-McAb was very significant (T > 2.58, P < 0.01). The results of immunotherapy of 46 eyeballs with Rb tumor developed 10 days after inoculation by RGNTF-McAb for 2 months revealed that the proportion of grade III-IV tumors before and after therapy reduced from 53% to 26% and that of grade I-II tumors increased from 47% to 74%. Feulgen DNA staining of tumor sections after therapy revealed that the average DNA contents in Rb cells decreased significantly (P < 0.01) from 16.2 +/- 2.6 in grade III-IV to 5.3 +/- 1.2 in grade I-II compared to that of the untreated control 18.8 +/- 3.2. Numerous white cells infiltrating the Rb tumor, hyperplasia of fibrous tissues, and no spreading and metastasis of the tumor tissue were observed in the treated eyeballs; whereas Rb tumor was spreading to the optic nerve and superior colliculus in the untreated eyeballs. Therefore, the RGNTF-McAb can not only inhibit the growth of Rb cells but also limit their spreading and metastasis.(ABSTRACT TRUNCATED AT 250 WORDS)
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Hu PJ, Li YY, Mitchell HM, Zhou MH, Chen MH, Du GG, Huang BJ, Lee A, Hazell SL. Oxyntic and antral gastritis in the People's Republic of China: diagnosis and relationship to Helicobacter pylori. Am J Gastroenterol 1992; 87:741-5. [PMID: 1590312] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/11/2022]
Abstract
This study investigates the relationship between gastritis and Helicobacter pylori infection in the Chinese population. Particular focus was placed upon the grading of gastritis, using the recently developed "Sydney system." Five diagnostic procedures were used to establish H. pylori status, all of which were found to be highly sensitive and specific. Histological chronic gastritis was reported in 93/108 (86.1%) of the patients examined, H. pylori infection being present in 73/93 (78.5%), and in no patient with histologically normal mucosae. There was a relatively high incidence of idiopathic antral gastritis within the gastritic population, 20/93 (21.5%). In the H. pylori-positive group, 10/73 (13.7%) had pangastritis, 57/73 (78.1%) had pangastritis-antrum-predominant, and 6/73 (8.2%) had antral-only gastritis. The level of activity was significantly higher in the antrum; however, the distribution of bacteria between the antrum and body was not significantly different. There is a need for additional studies examining the specific topographical relationship between H. pylori, the histology, and gastroduodenal disease.
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Affiliation(s)
- P J Hu
- Affiliated First Hospital, Sun Yat-Sen University of Medical Science, Guangzhou, People's Republic of China
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41
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Abstract
Forty-one cases of nasopharyngeal and 13 cases of nasal malignant lymphoma have been examined histologically and immunohistochemically. All of the cases were non-Hodgkin's lymphoma; one case was of follicular type and the remaining 53 were of diffuse type. Large cell lymphoma comprised 48% of cases and most of the immunoblastic lymphomas showing pleomorphism occurred in the nose. Twenty-seven cases were of T-cell and 21 of B-cell phenotype. The predominance of T-cell lymphoma was due to an increased incidence of these in the nose, the T:B ratio of 3.33:1 contrasting with a 1:1.05 ratio in the nasopharynx. Nasopharyngeal lymphomas seem to show an intermediate incidence between the T-cell predominance in the nose and a B-cell predominance in the oropharynx. Since the large cell type of lymphoma was predominant, the differential diagnosis from undifferentiated carcinoma is important and is facilitated by the use of immunostaining methods.
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Affiliation(s)
- Y L Ye
- Department of Pathology, Sun Yat-Sen University of Medical Sciences, Guanhzhou, China
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42
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Zhou MH. [Immunohistochemical study of primary gastrointestinal malignant lymphoma]. Zhonghua Bing Li Xue Za Zhi 1991; 20:254-6. [PMID: 1813157] [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: 12/28/2022]
Abstract
63 cases of primary gastrointestinal non-Hodgkin's malignant lymphoma (ML), including 18 cases of gastric ML, 25 cases of small intestinal ML, 12 cases of ileocaecal ML and 8 cases of large intestinal ML, were studied. Small non-cleaved cell lymphomas were most common, accounting for 25.4% which was more common in the bowel than in the stomach. In 41 cases, a panel of monoclonal antibodies including L26, UCHL-1, Leu22 and Mac387 were used on paraffin section. The result of the staining was satisfactory in 37 cases. There were 35 cases (94.6%) exhibiting B-cell phenotype and 2 cases (5.4%) exhibiting T-cell phenotype. No histiocytic type was detected. The results of this and previous studies confirm the fact that most gastrointestinal lymphomas are B-cell lymphomas.
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Affiliation(s)
- M H Zhou
- Department of Pathology, Sun Yat-sen University of Medical Sciences
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43
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Zhao LP, Zhou MH. [Purification and survival of retinal ganglion cell]. Shi Yan Sheng Wu Xue Bao 1991; 24:181-7. [PMID: 1755264] [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: 12/28/2022]
Abstract
We had used a specific anti-Thy 1.1 antibody binding method and a nylonmembrane sieve method to isolate and purify retinal ganglion cells from neonatal rats in order to compare the effect of tectal extract on these purified cells retinal ganglion cells. Isolated retinal cell suspension with retinal ganglion cells retrograde-prelabelled with Fast Blue were seeded on culture dishes coated with the specific anti-Thy 1.1 antibody for 30 minutes before nonadherent cells were removed. The percentage purity of the adherent retinal ganglion cells determined microscopically to be 95%. However, the percentage purity of the Fast Blue-labelled retinal ganglion cells recovered using the nylon membrane of pore size 15 microns was only 60 +/- 5%. Retinal ganglion cells purified by both methods could survive and grow into large, active neurons with neurite outgrowths in the presence of tectal extract. A MTT colorimetric microassay was used to quantify the survival growth activity of these purified retinal ganglion cells after culture for 24 hours. The result showed that the optical density ratio (+Te/-Te) of the retinal ganglion cells purified by anti-Thy 1.1 antibody binding method was 12.3 (0.111/0.009) and by the nylon membrane method was 6.4 (0.102/0.016), and the optical density ratio of the non-purified retinal cells was 3.8 (0.095/0.025), p less than 0.01 for all 3 sets of results. It was concluded that in the absence of other cells, the purified retinal ganglion cells responded specifically to the trophic activity in tectal extract, the purer the retinal ganglion cells and the clearer the effect.
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Affiliation(s)
- L P Zhao
- Department of Anatomy, University of Hong Kong
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44
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Zhou MH, Zhao LP, Ren LS. Effect of a 30 kD protein from tectal extract of rat on cultured retinal neuron. Sci China B 1991; 34:908-15. [PMID: 1801844] [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: 12/28/2022]
Abstract
For the first time we have shown here that the constituent from tectal extract (Te) which can support and promote the survival and growth of the retinal ganglion cell is a 30 kD protein. (i) Using MTT colorimetric microassay to measure the optical density for the survival and growth of the cultured retinal neuron, it was found that the optical densities for the experimental cultures with either Te, or its 10-30 kD fraction, or its greater than or equal to 30 kD fraction were 2-4 times that of the control culture without Te (P less than 0.01). This indicated that experimental cultures were more active in growth. (ii) The retinal neurons cultured on Te Phast gels showed that large retinal neurons (greater than 18 microns) grew only on the gel region containing the 30 kD protein. The retrograde prelabelled with horseradish peroxidase (HRP) for retinal ganglion cells indicated that these surviving neurons grown on Te Phast gel were HRP positive, i.e. retinal ganglion cells. (iii) The retinal explants cultured with 30 kD gels at a close distance of 1 mm apart revealed that many neurite outgrowths, up to 400 microns, extended from the retinal explants towards 30 kD gels, and that many individual cells and tissue masses migrated out from the explants and grew onto 30 kD gels. They were stained anti-neuron specific enolase and anti-Thy 1.1 positive, indicating they are retinal ganglion cells. Therefore, we concluded that the 30 kD protein is the neuronotrophic factor in the tectal extract specific for retinal ganglion cells.
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Affiliation(s)
- M H Zhou
- Department of Anatomy, University of Hong Kong
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45
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Zhou MH, Galway AB. [Inhibitory effect of interleukin-1 beta on follicle stimulating hormone (FSH) induced estrogen production by cultured rat granulosa cells]. Sheng Li Xue Bao 1991; 43:67-72. [PMID: 1903893] [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: 12/29/2022]
Abstract
Interleukin-1 beta (IL-1 beta), one of the polypeptide lymphokines released in response to antigen, toxins, injury or inflammation by nearly all cell types, has multiple systemic effects. In the present study the effect of IL-1 beta on follicle stimulating hormone (FSH)-induced estrogen production in primary culture was investigated. Granulosa cells obtained from immature estrogen-treated female rats were cultured for 3 days with increasing doses of FSH (1-30 ng/ml) with or without increasing doses of IL-1 beta (2-20 U/ml). The FSH stimulated estrogen production is dose-dependent, whereas IL-1 beta alone did not affect estrogen biosynthesis. In contrast, simultaneous treatment with IL-1 beta caused a dose-dependent inhibition of FSH action. This inhibitory effect of IL-1 beta was evident 48 h after the treatment. Furthermore, IL-1 beta inhibited forskolin (10(-5) mmol/L) and (Bu)2 cAMP (10(-2) mmol/L)-stimulated estrogen production, indicating a post-cyclic AMP site of action. The present study suggests that IL-1 beta is a potent modulator of granulosa cell steroidogenesis. Decreased estrogen formation may contribute to the follicle atresia and the impaired reproductive functions during injury and inflammation.
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Affiliation(s)
- M H Zhou
- Department of Pharmacology, Shanghai Medical University
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46
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Galway AB, Hsueh AJ, Daneshdoost L, Zhou MH, Pavlou SN, Snyder PJ. Gonadotroph adenomas in men produce biologically active follicle-stimulating hormone. J Clin Endocrinol Metab 1990; 71:907-12. [PMID: 2119391 DOI: 10.1210/jcem-71-4-907] [Citation(s) in RCA: 42] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
Abstract
Gonadotroph adenomas may exhibit qualitative and quantitative defects in gonadotropin biosynthesis and secretion. Hypersecretion of immunoreactive FSH dimers by these adenomas occurs frequently; however, it has not been known whether this FSH is biologically active. Using the granulosa cell aromatase bioassay and a highly specific immunoradiometric assay for FSH, we studied the serum bioactivity and bio- to immunoactivity (B/I) ratios of 14 men with FSH-secreting adenomas and compared these values to those of 11 age-matched normal men. In addition, three adenoma patients received TRH (400 micrograms, iv). The mean basal serum FSH level (international units per L), as measured by both bio- and immunoassays, and the FSH B/I ratios were significantly higher (P less than 0.02, by Kolmogorov-Smirnov test) in the adenoma patients than in normal men (mean +/- SEM; adenoma patients: bioactivity, 68.8 +/- 10.4; immunoreactivity, 34.8 +/- 13.7; B/I ratio, 3.4 +/- 0.6; normal men: bioactivity, 5.8 +/- 1.2; immunoreactivity, 6.4 +/- 0.8; B/I ratio, 0.90 +/- 0.1). Both bio- and immunoactive FSH rose after TRH injection, resulting in maintenance of the B/I (mean +/- SEM; pre-TRH: bio-FSH, 63.7 +/- 22.4; immuno-FSH, 28.0 +/- 14.1; B/I ratio, 2.8 +/- 1.2; post-TRH: bio-FSH, 125.6 +/- 42.7; immuno-FSH, 45.8 +/- 21.8; B/I ratio, 3.5 +/- 1.6). When gonadotroph adenoma cells from three separate patients were cultured and their conditioned media (n = 3) studied, relatively large amounts of both bio- and immuno-FSH were detected. Furthermore, the major isoelectric profile of bio-FSH (pH 4.9-3.0) in the conditioned medium from two such adenomas was shown by chromatofocusing to be comparable to that of purified human pituitary FSH (pH 5.2-3.6). We conclude that gonadotroph adenomas in men secrete FSH that is biologically active, both basally and in response to TRH.
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Affiliation(s)
- A B Galway
- Department of Reproductive Medicine M-025, University of California-San Diego, La Jolla 92093
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47
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Zhou MH, Dong Q, Ts'ao C. Susceptibility of irradiated bovine aortic endothelial cells to injury. Am J Pathol 1988; 133:277-84. [PMID: 3189506 PMCID: PMC1880791] [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: 01/04/2023]
Abstract
Using cultured bovine aortic endothelial cells (BAEC), the authors attempted to determine whether prior irradiation would alter the susceptibility of these cells to three known injurious stimuli and, if so, whether the alteration would be related to radiation dose. BAEC were irradiated with 0, 5, or 10 Gy of gamma rays and, on the third postirradiation day, exposed to fibrin, nicotine, or bacterial endotoxin (lipopolysaccharide, LPS). Release of prelabeled 51Cr, representing cell lysis, cell detachment, or a combination of the two, was determined. Significant differences between irradiated and control cells were determined by using paired Student's t-tests. Irradiation did not appear to have altered the sensitivity of BAEC to fibrin-induced injury. Cells irradiated with 10 Gy of gamma rays, but generally not those irradiated with half this dose, showed a heightened susceptibility to nicotine. Contrary to the nicotine results, irradiated cells showed less cell detachment and lysis after exposure to LPS. These results suggest that the susceptibility of irradiated BAEC to harmful stimuli depends largely on the nature of the stimulus as well as the radiation dose.
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Affiliation(s)
- M H Zhou
- Department of Pathology, Northwestern University School of Medicine, Chicago, Illinois 60611
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Dong Q, Zhou MH, Subbarao V, Ts'ao CH. Cellular and extracellular plasminogen activator and inhibitor in an experimental tumour. Br J Exp Pathol 1988; 69:685-95. [PMID: 3143395 PMCID: PMC2013274] [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: 01/04/2023]
Abstract
We determined plasminogen activator (PA) and PA inhibitor (PAI) activities in the intra- and extracellular compartments of an experimental pancreatic ascites tumour with indirect and direct functional assays, and partially characterized these activities on SDS-polyacrylamide gels coupled with fibrin and reverse fibrin autography. Intact tumour cells caused lysis of plasminogen-rich but not plasminogen-free fibrin clots, and the extent of lysis of the former was related to tumour cell count. Direct assay of PA with a synthetic substrate yielded an equivalent of 109 urokinase units per 10(9) tumour cells. No PAI activity was demonstrated in tumour cells with functional assays. Contrary to tumour cells, cell-free ascitic fluids caused no lysis of fibrin clots. Instead, it inhibited tumour cell- and urokinase-induced, but not plasmin-induced, clot lysis in a dose-dependent fashion. Although functional assays failed to demonstrate PA in ascitic fluid and PAI in tumour cells, both activities were detected in electrophoresed samples of cell lysates and fluids by fibrin and reverse fibrin autography. In tumour cells, a mixture of tissue-type PA (tPA) and urokinase-type PA (uPA) were present. In the fluid, uPA together with two other PAs with greater molecular weights than tPA were detected.
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Affiliation(s)
- Q Dong
- Department of Pathology, Northwestern University School of Medicine, Chicago, Illinois 60611
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Zhou MH. [Study on histogenesis, histological types and prognosis of 100 cases of gastric carcinoma]. Zhonghua Bing Li Xue Za Zhi 1986; 15:210-3. [PMID: 3034440] [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: 01/03/2023]
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Zhou MH, Gu JW, Chu YH. [Pharmacological study on the effect of testosterone propionate to terminate early pregnancy]. Yao Xue Xue Bao 1986; 21:647-50. [PMID: 3577784] [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: 01/06/2023]
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