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Deng C, Xiong C, Huo J, Liu Y, Man Y, Qu Y. Posterior open wound healing in immediate implant placement using reactive soft tissue versus absorbable collagen sponge: a retrospective cohort study. Int J Oral Maxillofac Surg 2024; 53:436-443. [PMID: 38103945 DOI: 10.1016/j.ijom.2023.11.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/19/2023] [Revised: 10/13/2023] [Accepted: 11/15/2023] [Indexed: 12/19/2023]
Abstract
The soft and hard tissue healing of open wounds in immediate implant placement are yet to be explored. The aim of this study was to compare the clinical outcomes of open wound healing using reactive soft tissue (RST) and absorbable collagen sponge (ACS). Forty implants placed immediately in posterior sockets were included; autologous RST was used in 20 and ACS substitute was used in 20. Soft tissue healing was primarily assessed through a novel scoring system and the evaluation of gingival recession. The horizontal bone width (HBW) and interproximal marginal bone level (MBL) were measured on radiographs to observe the hard tissue healing. No significant difference in total soft tissue healing score was observed at 2 weeks postoperatively. Notably, the ACS group showed better tissue colour (P = 0.016) but worse fibrous repair (P = 0.043) scores than the RST group. Gingival recession levels were comparable in the two groups, both before tooth extraction and after placement of the restoration. Regarding hard tissue, HBW and MBL changes showed no intergroup differences. Within the limitations of this study, both RST and ACS seemed effective for open wound closure, achieving ideal soft and hard tissue healing in immediate implant placement.
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Affiliation(s)
- C Deng
- State Key Laboratory of Oral Diseases and National Center for Stomatology and National Clinical Research Center for Oral Diseases and Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - C Xiong
- State Key Laboratory of Oral Diseases and National Center for Stomatology and National Clinical Research Center for Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - J Huo
- State Key Laboratory of Oral Diseases and National Center for Stomatology and National Clinical Research Center for Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Y Liu
- State Key Laboratory of Oral Diseases and National Center for Stomatology and National Clinical Research Center for Oral Diseases, West China School of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Y Man
- State Key Laboratory of Oral Diseases and National Center for Stomatology and National Clinical Research Center for Oral Diseases and Department of Oral Implantology, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China
| | - Y Qu
- State Key Laboratory of Oral Diseases and National Center for Stomatology and National Clinical Research Center for Oral Diseases and Department of Prosthodontics, West China Hospital of Stomatology, Sichuan University, Chengdu, Sichuan, China.
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Li G, Wang C, Liu L, Fang X, Kuang W, Xiong C. Study on Sensor Fault-Tolerant Control for Central Air-Conditioning Systems Using Bayesian Inference with Data Increments. Sensors (Basel) 2024; 24:1150. [PMID: 38400309 PMCID: PMC10891601 DOI: 10.3390/s24041150] [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] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/23/2023] [Revised: 01/17/2024] [Accepted: 01/19/2024] [Indexed: 02/25/2024]
Abstract
A lack of available information on heating, ventilation, and air-conditioning (HVAC) systems can affect the performance of data-driven fault-tolerant control (FTC) models. This study proposed an in situ selective incremental calibration (ISIC) strategy. Faults were introduced into the indoor air (Ttz1) thermostat and supply air temperature (Tsa) and chilled water supply air temperature (Tchws) sensors of a central air-conditioning system. The changes in the system performance after FTC were evaluated. Then, we considered the effects of the data quality, data volume, and variable number on the FTC results. For the Ttz1 thermostat and Tsa sensor, the system energy consumption was reduced by 2.98% and 3.72% with ISIC, respectively, and the predicted percentage dissatisfaction was reduced by 0.67% and 0.63%, respectively. Better FTC results were obtained using ISIC when the Ttz1 thermostat had low noise, a 7-day data volume, or sufficient variables and when the Tsa and Tchws sensors had low noise, a 14-day data volume, or limited variables.
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Affiliation(s)
- Guannan Li
- School of Urban Construction, Wuhan University of Science and Technology, Wuhan 430065, China; (G.L.); (C.W.); (W.K.); (C.X.)
- Anhui Province Key Laboratory of Intelligent Building and Building Energy-Saving, Anhui Jianzhu University, Hefei 230601, China
- Key Laboratory of Low-Grade Energy Utilization Technologies and Systems (Chongqing University), Ministry of Education of China, Chongqing University, Chongqing 400044, China
- State Key Laboratory of Green Building in Western China, Xi’an University of Architecture & Technology, Xi’an 710055, China
| | - Chongchong Wang
- School of Urban Construction, Wuhan University of Science and Technology, Wuhan 430065, China; (G.L.); (C.W.); (W.K.); (C.X.)
| | - Lamei Liu
- School of Urban Construction, Wuhan University of Science and Technology, Wuhan 430065, China; (G.L.); (C.W.); (W.K.); (C.X.)
| | - Xi Fang
- College of Civil Engineering, Hunan University, Changsha 410082, China;
| | - Wei Kuang
- School of Urban Construction, Wuhan University of Science and Technology, Wuhan 430065, China; (G.L.); (C.W.); (W.K.); (C.X.)
| | - Chenglong Xiong
- School of Urban Construction, Wuhan University of Science and Technology, Wuhan 430065, China; (G.L.); (C.W.); (W.K.); (C.X.)
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Xiong C, Chen P, Jiang ML, Chang BW, Niu CS. [Early brain imaging changes and its influence on electrode impedance after implantation of 3.0 T MRI-compatible deep brain stimulation system in Parkinson's disease subthalamic nucleus]. Zhonghua Yi Xue Za Zhi 2023; 103:3809-3815. [PMID: 38123221 DOI: 10.3760/cma.j.cn112137-20231009-00682] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Abstract
Objective: To analyze the imaging changes of in the early period after subthalamic nucleus (STN) deep brain stimulation (DBS) surgery for Parkinson's disease (PD) and its impact on electrode impedance by the application of 3.0T MRI-compatible devices. Methods: A retrospective analysis was performed for the data of 43 PD patients who underwent 3.0T MRI-compatible STN-DBS surgery from October 2022 to April 2023 at the First Affiliated Hospital of USTC(Anhui Provincial Hospital), including 27 males and 16 females, aged 43-68 (56±5) years. All patients underwent postoperative 3.0T MRI, CT scans,and impedance measurements 1 week postoperatively.Fifteen patients underwent 3.0T MRI and impedance measurements 1 month postoperatively. The differences in impedance of electrode contacts before and after the 3.0T MRI scans were compared. The occurrence of peri-lead cerebral edema (PLE) in patients was analyzed, as well as the differences in PLE detection rates between the two imaging methods, and the differences in the incidence and volume of PLE at different microelectrode recordings, the occurrence and detection of postoperative PLE, and different microelectrode recording (MER) times and different time nodes were compared. The correlation between electrode impedance and the volume of edema around the nucleus was analyzed. Results: All 43 patients successfully underwent surgery, with a total of 86 electrodes implanted. There was no significant difference in electrode impedance values before and after the 3.0T MRI examinations at 1 week and 1 month postoperatively. The PLE detection rate with 3.0T MRI was 95.12%(39/43), which is significantly higher than that of CT imaging 17.07% (7/43)(χ2=50.705, P<0.001). One week after surgery, the incidence and volume of PLE were higher in the multiple MER group compared with the single MER group, but the difference was not statistically significant. The volume of PLE [M(Q1, Q3) 0 (0, 1.211) cm3] at 1 month was significantly smaller than that at 1 week [0.243 (0, 2.914) cm3] (Z=-3.408, P=0.001). The impedance of electrode contacts within 1 month postoperatively showed a trend of initial decrease followed by an increase, which was negatively correlated with SE volume(r=-0.317, P=0.014). Conclusions: The application of 3.0T MRI-compatible DBS devices in the surgical treatment of PD patients improves the accuracy of early postoperative imaging assessment. The electrode impedance is more stable as the edema around the nucleus subsided at 1 month after surgery, which is suitable for the first program control.
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Affiliation(s)
- C Xiong
- Department of Neurosurgery, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Anhui Provincial Key Laboratory of Brain Function and Disease, Hefei 230001, China
| | - P Chen
- Department of Neurosurgery, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Anhui Provincial Key Laboratory of Brain Function and Disease, Hefei 230001, China
| | - M L Jiang
- Department of Neuroelectrophysiology, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230036, China
| | - B W Chang
- Department of Neurosurgery, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Anhui Provincial Key Laboratory of Brain Function and Disease, Hefei 230001, China
| | - C S Niu
- Department of Neurosurgery, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Anhui Provincial Key Laboratory of Brain Function and Disease, Hefei 230001, China
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Chen P, Xiong C, Jiang ML, Zhuang HX, Mei JM, Niu CS. [Analysis of complications and learning curve effects related to deep brain stimulation surgery in 822 Parkinson's disesase patients with the same surgeon]. Zhonghua Yi Xue Za Zhi 2023; 103:3822-3827. [PMID: 38123223 DOI: 10.3760/cma.j.cn112137-20231030-00945] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 12/23/2023]
Abstract
Objective: To analyze the complications related to deep brain stimulation(DBS) surgery in Parkinson's disease(PD) patients and to determine whether there is a learning curve effect in terms of complications. Methods: Retrospective analysis of the DBS surgical data of 822 PD patients performed by the same surgeon at the First Affiliated Hospital of the University of Science and Technology of China (Anhui Provincial Hospital) from December 2012 to December 2022. The complications related to DBS were evaluated and analyzed the complications of every 100 DBS surgery were further analyzed. Results: A total of 822 PD patients, 453 males and 369 females, aged 31-80 years old, were included. The minimum follow-up period after DBS surgery is 6 months. Surgical related complications occurred in 55 patients (6.69%), including 5 patients (0.61%) with slight bleeding around the electrode, 1 patient (0.12%) with cerebral infarction, 4 patients (0.49%) with postoperative epilepsy, 42 patients (5.11%) with postoperative delirium, 2 patients (0.24%) with respiratory distress, and 1 patient (0.12%) with acute cardiac insufficiency. There were 16 cases (1.94%) of hardware related complications in DBS, of which 4 cases (0.48%) had infection, 1 case (0.12%) had a broken angle at the connection between the pulse generator and the extension wire, 8 cases (0.97%) had an excessively tight extension wire, and 3 cases (0.36%) had an IPG bag hematoma. In the infected cases, 2 patients removed IPG and extension wires. There were 7 cases (0.85%) of stimulus related complications, including 4 cases (0.61%) with programmed sensory abnormalities, 1 case (0.12%) with postoperative abnormal movements and dance like movements, and 2 cases (0.24%) with psychiatric symptoms. A comprehensive analysis was conducted on the above complications, among which 8 cases (0.97%) were relatively serious complications. After active treatment, satisfactory results were achieved, and none of them affected the patient's DBS treatment effect and no patients died. For every 100 cases of DBS surgery complications were analyzed, the percentage of complications decreased significantly from 14.50% (58 cases) in the first 400 cases to 4.73% (20 cases) in the last 400 cases (P<0.001). Conclusion: DBS surgery is safe and has an acceptable low incidence of complications. The incidence of complications also decreases with the accumulation of experience, showing a learning curve effect.
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Affiliation(s)
- P Chen
- Department of Neurosurgery, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Anhui Provincial Key Laboratory of Brain Function and Disease, Hefei 230001, China
| | - C Xiong
- Department of Neuroelectrophysiology, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230036, China
| | - M L Jiang
- Department of Neuroelectrophysiology, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Hefei 230036, China
| | - H X Zhuang
- Department of Neurosurgery, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Anhui Provincial Key Laboratory of Brain Function and Disease, Hefei 230001, China
| | - J M Mei
- Department of Neurosurgery, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Anhui Provincial Key Laboratory of Brain Function and Disease, Hefei 230001, China
| | - C S Niu
- Department of Neurosurgery, the First Affiliated Hospital of USTC, Division of Life Sciences and Medicine, University of Science and Technology of China, Anhui Provincial Key Laboratory of Brain Function and Disease, Hefei 230001, China
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Hu W, Meng L, Wang C, Lu W, Tong X, Lin R, Xu T, Chen L, Cui A, Xu X, Li A, Tang J, Gao H, Pei Z, Zhang R, Wang Y, Wang Y, Han W, Jiang N, Xiong C, Feng Y, Lee K, Chen M. Spatiotemporal observations of host-pathogen interactions in mucosa during SARS-CoV-2 infection indicate a protective role of ILC2s. Microbiol Spectr 2023; 11:e0087823. [PMID: 37937994 PMCID: PMC10714800 DOI: 10.1128/spectrum.00878-23] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2023] [Accepted: 09/30/2023] [Indexed: 11/09/2023] Open
Abstract
IMPORTANCE Our study revealed the spatial interaction between humanized ACE2 and pseudovirus expressing Spike, emphasizing the role of type 2 innate lymphoid cells during the initial phase of viral infection. These findings provide a foundation for the development of mucosal vaccines and other treatment approaches for both pre- and post-infection management of coronavirus disease 2019.
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Affiliation(s)
- Wei Hu
- Department of Emergency Medicine, Shanghai Key Laboratory of Infectious Diseases and Biosafety Emergency Response, National Medical Center for Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, China
- Department of Infectious Diseases, Shanghai Key Laboratory of Infectious Diseases and Biosafety Emergency Response, National Medical Center for Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, China
- Department of Integrative Medicine and Neurobiology, School of Basic Medical Sciences, Institutes of Brain Science, Brain Science Collaborative Innovation Center, State Key Laboratory of Medical Neurobiology, Institute of Acupuncture and Moxibustion, Fudan Institutes of Integrative Medicine, Fudan University, Shanghai, China
| | - Lu Meng
- The Center for Microbes, Development and Health, Key Laboratory of Molecular Virology and Immunology, Institute Pasteur of Shanghai, Chinese Academy of Sciences, Shanghai, China
| | - Chao Wang
- Department of Emergency Medicine, Shanghai Key Laboratory of Infectious Diseases and Biosafety Emergency Response, National Medical Center for Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, China
- Department of Infectious Diseases, Shanghai Key Laboratory of Infectious Diseases and Biosafety Emergency Response, National Medical Center for Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, China
| | - Wenhan Lu
- Department of Integrative Medicine and Neurobiology, School of Basic Medical Sciences, Institutes of Brain Science, Brain Science Collaborative Innovation Center, State Key Laboratory of Medical Neurobiology, Institute of Acupuncture and Moxibustion, Fudan Institutes of Integrative Medicine, Fudan University, Shanghai, China
| | - Xiaoyu Tong
- Department of Integrative Medicine and Neurobiology, School of Basic Medical Sciences, Institutes of Brain Science, Brain Science Collaborative Innovation Center, State Key Laboratory of Medical Neurobiology, Institute of Acupuncture and Moxibustion, Fudan Institutes of Integrative Medicine, Fudan University, Shanghai, China
| | - Rui Lin
- State Key Laboratory of Genetic Engineering, School of Life Science, Fudan University, Shanghai, China
| | - Tao Xu
- Department of Infectious Diseases, National Medical Center for Infectious Diseases, Shanghai Key Laboratory of Infectious Diseases and Biosafety Emergency Response, Huashan Hospital, Shanghai Medical College, Fudan University, Shanghai, China
| | - Liang Chen
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - An Cui
- Department of Emergency Medicine, Shanghai Key Laboratory of Infectious Diseases and Biosafety Emergency Response, National Medical Center for Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, China
- Department of Infectious Diseases, Shanghai Key Laboratory of Infectious Diseases and Biosafety Emergency Response, National Medical Center for Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, China
| | - Xiaoqing Xu
- Department of Emergency Medicine, Shanghai Key Laboratory of Infectious Diseases and Biosafety Emergency Response, National Medical Center for Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, China
- Department of Infectious Diseases, Shanghai Key Laboratory of Infectious Diseases and Biosafety Emergency Response, National Medical Center for Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, China
| | - Anni Li
- Department of Emergency Medicine, Shanghai Key Laboratory of Infectious Diseases and Biosafety Emergency Response, National Medical Center for Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, China
- Department of Infectious Diseases, Shanghai Key Laboratory of Infectious Diseases and Biosafety Emergency Response, National Medical Center for Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, China
| | - Jia Tang
- Department of Emergency Medicine, Shanghai Key Laboratory of Infectious Diseases and Biosafety Emergency Response, National Medical Center for Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, China
- Department of Infectious Diseases, Shanghai Key Laboratory of Infectious Diseases and Biosafety Emergency Response, National Medical Center for Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, China
| | - Hongru Gao
- Department of Integrative Medicine and Neurobiology, School of Basic Medical Sciences, Institutes of Brain Science, Brain Science Collaborative Innovation Center, State Key Laboratory of Medical Neurobiology, Institute of Acupuncture and Moxibustion, Fudan Institutes of Integrative Medicine, Fudan University, Shanghai, China
| | - Zhenle Pei
- Department of Integrative Medicine and Neurobiology, School of Basic Medical Sciences, Institutes of Brain Science, Brain Science Collaborative Innovation Center, State Key Laboratory of Medical Neurobiology, Institute of Acupuncture and Moxibustion, Fudan Institutes of Integrative Medicine, Fudan University, Shanghai, China
| | - Ruonan Zhang
- Department of Integrative Medicine and Neurobiology, School of Basic Medical Sciences, Institutes of Brain Science, Brain Science Collaborative Innovation Center, State Key Laboratory of Medical Neurobiology, Institute of Acupuncture and Moxibustion, Fudan Institutes of Integrative Medicine, Fudan University, Shanghai, China
| | - Yicong Wang
- Department of Integrative Medicine and Neurobiology, School of Basic Medical Sciences, Institutes of Brain Science, Brain Science Collaborative Innovation Center, State Key Laboratory of Medical Neurobiology, Institute of Acupuncture and Moxibustion, Fudan Institutes of Integrative Medicine, Fudan University, Shanghai, China
| | - Yu Wang
- Department of Integrative Medicine and Neurobiology, School of Basic Medical Sciences, Institutes of Brain Science, Brain Science Collaborative Innovation Center, State Key Laboratory of Medical Neurobiology, Institute of Acupuncture and Moxibustion, Fudan Institutes of Integrative Medicine, Fudan University, Shanghai, China
| | - Wendong Han
- Biosafety Level 3 Laboratory, Shanghai Medical College Fudan University, Shanghai, China
| | - Ning Jiang
- State Key Laboratory of Genetic Engineering, School of Life Science, Fudan University, Shanghai, China
| | - Chenglong Xiong
- Department of Epidemiology, School of Public Health, and Key Laboratory of Public Health Safety, Ministry of Education, School of Public Health, Fudan University, Shanghai, China
| | - Yi Feng
- Department of Integrative Medicine and Neurobiology, School of Basic Medical Sciences, Institutes of Brain Science, Brain Science Collaborative Innovation Center, State Key Laboratory of Medical Neurobiology, Institute of Acupuncture and Moxibustion, Fudan Institutes of Integrative Medicine, Fudan University, Shanghai, China
| | - Kuinyu Lee
- Department of Integrative Medicine and Neurobiology, School of Basic Medical Sciences, Institutes of Brain Science, Brain Science Collaborative Innovation Center, State Key Laboratory of Medical Neurobiology, Institute of Acupuncture and Moxibustion, Fudan Institutes of Integrative Medicine, Fudan University, Shanghai, China
| | - Mingquan Chen
- Department of Emergency Medicine, Shanghai Key Laboratory of Infectious Diseases and Biosafety Emergency Response, National Medical Center for Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, China
- Department of Infectious Diseases, Shanghai Key Laboratory of Infectious Diseases and Biosafety Emergency Response, National Medical Center for Infectious Diseases, Huashan Hospital, Fudan University, Shanghai, China
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Li Y, Hou J, Sun Z, Hu J, Thilakavathy K, Wang Y, Shao Z, Lu Y, Wang W, Xiong C. Monkeypox virus 2022, gene heterogeneity and protein polymorphism. Signal Transduct Target Ther 2023; 8:278. [PMID: 37460567 DOI: 10.1038/s41392-023-01540-2] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/10/2022] [Revised: 05/29/2023] [Accepted: 06/12/2023] [Indexed: 07/20/2023] Open
Affiliation(s)
- Yanjiao Li
- Department of Epidemiology, School of Public Health, Fudan University; Key Laboratory of Public Health Safety, Ministry of Education, 200032, Shanghai, China
| | - Jingjing Hou
- Department of Pulmonary and Critical Care Medicine, Tongji Hospital, School of Medicine, Tongji University, 200065, Shanghai, China
| | - Zhong Sun
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, 43400, Malaysia
| | - Jingjing Hu
- Department of Epidemiology, School of Public Health, Fudan University; Key Laboratory of Public Health Safety, Ministry of Education, 200032, Shanghai, China
| | - Karuppiah Thilakavathy
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, 43400, Malaysia
| | - Yuxi Wang
- Department of Epidemiology, School of Public Health, Fudan University; Key Laboratory of Public Health Safety, Ministry of Education, 200032, Shanghai, China
| | - Zhongjun Shao
- Department of Epidemiology, Ministry of Education Key Lab of Hazard Assessment and Control in Special Operational Environment, School of Public Health, Air Force Medical University, 710068, Xi'an, China
| | - Yihan Lu
- Department of Epidemiology, School of Public Health, Fudan University; Key Laboratory of Public Health Safety, Ministry of Education, 200032, Shanghai, China.
| | - Weibing Wang
- Department of Epidemiology, School of Public Health, Fudan University; Key Laboratory of Public Health Safety, Ministry of Education, 200032, Shanghai, China.
| | - Chenglong Xiong
- Department of Epidemiology, School of Public Health, Fudan University; Key Laboratory of Public Health Safety, Ministry of Education, 200032, Shanghai, China.
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Wang L, Li G, Gao J, Fang X, Wang C, Xiong C. Case Study: Impacts of Air-Conditioner Air Supply Strategy on Thermal Environment and Energy Consumption in Offices Using BES-CFD Co-Simulation. Sensors (Basel) 2023; 23:5958. [PMID: 37447806 DOI: 10.3390/s23135958] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/25/2023] [Revised: 05/12/2023] [Accepted: 05/16/2023] [Indexed: 07/15/2023]
Abstract
Due to energy constraints and people's increasing requirements for indoor thermal comfort, improving energy efficiency while ensuring thermal comfort has become the focus of research in the design and operation of HVAC systems. This study took office rooms with few people occupying them in Wuhan as the research object. The EnergyPlus-Fluent co-simulation method was used to study the impact of 12 forms of air distribution on the thermal environment and air-conditioner energy consumption. The results indicate that 3 m/s supply air velocity and 45° supply air angle are more suitable for the case model in this study. The EnergyPlus-Fluent co-simulation method used in this paper provides a reference for the study of indoor environments in offices with few people occupying them.
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Affiliation(s)
- Luhan Wang
- School of Urban Construction, Wuhan University of Science and Technology, Wuhan 430065, China
| | - Guannan Li
- School of Urban Construction, Wuhan University of Science and Technology, Wuhan 430065, China
- Anhui Province Key Laboratory of Intelligent Building and Building Energy-Saving, Anhui Jianzhu University, Hefei 230601, China
- Key Laboratory of Low-Grade Energy Utilization Technologies and Systems (Chongqing University), Ministry of Education of China, Chongqing University, Chongqing 400044, China
- State Key Laboratory of Green Building in Western China, Xi'an University of Architecture & Technology, Xi'an 710055, China
- Hubei Provincial Engineering Research Center of Urban Regeneration, Wuhan University of Science and Technology, Wuhan 430065, China
| | - Jiajia Gao
- School of Urban Construction, Wuhan University of Science and Technology, Wuhan 430065, China
- Hubei Provincial Engineering Research Center of Urban Regeneration, Wuhan University of Science and Technology, Wuhan 430065, China
| | - Xi Fang
- College of Civil Engineering, Hunan University, Changsha 410082, China
| | - Chongchong Wang
- School of Urban Construction, Wuhan University of Science and Technology, Wuhan 430065, China
| | - Chenglong Xiong
- School of Urban Construction, Wuhan University of Science and Technology, Wuhan 430065, China
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Wang Y, Dong X, Zang J, Zhao X, Jiang F, Jiang L, Xiong C, Wang N, Fu C. Antibiotic residues of drinking-water and its human exposure risk assessment in rural Eastern China. Water Res 2023; 236:119940. [PMID: 37080106 DOI: 10.1016/j.watres.2023.119940] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/24/2022] [Revised: 03/06/2023] [Accepted: 04/03/2023] [Indexed: 05/03/2023]
Abstract
Trace levels of antibiotics were frequently found in drinking-water, leading a growing concern that drinking-water is an important exposure source to antibiotics in humans. In this study, we investigated antibiotics in tap water and well water in two rural residential areas in Eastern China to assess the related human health exposure risks in drinking-water. Twenty-seven antibiotics were analyzed using ultra performance liquid chromatography coupled with triple quadrupole tandem mass spectrometry (UPLC-MS/MS). The average daily dose (ADD) and the health risk quotient (HRQ) for exposure to antibiotics in humans were evaluated using 10000 times of Monte Carlo simulations. Ten antibiotics were detected in drinking-water samples, with the maximum concentrations of antibiotic mixture of 8.29 ng/L in tap water and 2.95 ng/L in well water, respectively. Macrolides and sulfonamides were the predominant contaminants and showed the seasonality. Azithromycin had the highest detection frequencies (79.71-100%), followed by roxithromycin (25.71-100%) and erythromycin (21.43-86.96%). The estimated ADD and HRQ for human exposure to antibiotic mixture through drinking-water was less than 0.01 μg/kg/day and 0.01, respectively, which varied over sites, water types, seasons and sex. Ingestion route was more important than dermal contact route (10-6 to 10-4 μg/kg/day magnitude vs. 10-11 to 10-8 μg/kg/day magnitude). Macrolides also contributed mainly to health exposure risks to antibiotics through drinking-water, whose HRQ accounted for 46% to 67% of the total HRQs. Although the individual antibiotic and their combined effects contributed to acceptable health risks for human, the long-term exposure patterns to low-dose antibiotics in drinking-water should not be ignored.
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Affiliation(s)
- Yingying Wang
- Key Laboratory of Public Health Safety, NHC Key Laboratory of Health Technology Assessment, School of Public Health, Fudan University, Shanghai, 200032, China
| | - Xiaolian Dong
- Deqing County Center for Disease Prevention and Control, Huzhou, 550004, China
| | - Jinxin Zang
- Key Laboratory of Public Health Safety, NHC Key Laboratory of Health Technology Assessment, School of Public Health, Fudan University, Shanghai, 200032, China
| | - Xinping Zhao
- Key Laboratory of Public Health Safety, NHC Key Laboratory of Health Technology Assessment, School of Public Health, Fudan University, Shanghai, 200032, China
| | - Feng Jiang
- Key Laboratory of Public Health Safety, NHC Key Laboratory of Health Technology Assessment, School of Public Health, Fudan University, Shanghai, 200032, China
| | - Lufang Jiang
- Key Laboratory of Public Health Safety, NHC Key Laboratory of Health Technology Assessment, School of Public Health, Fudan University, Shanghai, 200032, China
| | - Chenglong Xiong
- Key Laboratory of Public Health Safety, NHC Key Laboratory of Health Technology Assessment, School of Public Health, Fudan University, Shanghai, 200032, China
| | - Na Wang
- Key Laboratory of Public Health Safety, NHC Key Laboratory of Health Technology Assessment, School of Public Health, Fudan University, Shanghai, 200032, China;.
| | - Chaowei Fu
- Key Laboratory of Public Health Safety, NHC Key Laboratory of Health Technology Assessment, School of Public Health, Fudan University, Shanghai, 200032, China;.
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9
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Li H, Li Y, Chen Y, Chen B, Su Q, Hu Y, Xiong C. Mapping rabies in China: a geospatial analysis of national surveillance data. Int J Infect Dis 2023; 131:140-146. [PMID: 37030651 DOI: 10.1016/j.ijid.2023.04.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2022] [Revised: 02/22/2023] [Accepted: 04/03/2023] [Indexed: 04/09/2023] Open
Abstract
INTRODUCTION Dog-mediated human rabies remains an important public health problem in China. In this study, we aimed to understand the spatiotemporal variation of rabies and examined its non-medical ecological factors. METHODS In this study, we used annual incidence data for rabies at the province level in China to describe the incidence trends for the period 2004-2019 and employed a Bayesian hierarchical spatio-temporal model to determine the impacts of environmental, economic and demographic factors. RESULTS From 2004 to 2019, there were 26,593 cases reported in 31 provinces in Mainland China, and the annual incidence increased from 0.02 per 100,000 in 2004 to 0.14 in 2007, substantially decreased in 2008 and was gradually declining thereafter. Guizhou, Guangxi, Hunan and Hainan were four high-risk provinces, and Yunnan and Anhui provinces showed an increased risk in 2018 and 2019. Temperature and GDP were significantly positively correlated with the disease risk. The Standardized morbidity ratio (SMR) of rabies is likely to increase by 28% (relative risk (RR): 1.28, 95% credible interval (CI): 1.13-1.36) for every 1°C rising in temperature, and 17% (RR: 1.17, 95% CI: 1.01-1.34) for every 10,000 yuan increasing in per capita GDP. CONCLUSION In most provinces of China, the risk of rabies has been reduced to a persistently low level. However, progress of rabies control in six provinces have been less than satisfactory. The study highlights interventions such as enhancing animal vaccination need to be implemented in these prior areas.
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10
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Vermunt L, Sutphen C, Dicks E, de Leeuw DM, Allegri R, Berman SB, Cash DM, Chhatwal JP, Cruchaga C, Day G, Ewers M, Farlow M, Fox NC, Ghetti B, Graff-Radford N, Hassenstab J, Jucker M, Karch CM, Kuhle J, Laske C, Levin J, Masters CL, McDade E, Mori H, Morris JC, Perrin RJ, Preische O, Schofield PR, Suárez-Calvet M, Xiong C, Scheltens P, Teunissen CE, Visser PJ, Bateman RJ, Benzinger TLS, Fagan AM, Gordon BA, Tijms BM. Axonal damage and astrocytosis are biological correlates of grey matter network integrity loss: a cohort study in autosomal dominant Alzheimer disease. medRxiv 2023:2023.03.21.23287468. [PMID: 37016671 PMCID: PMC10071836 DOI: 10.1101/2023.03.21.23287468] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 04/06/2023]
Abstract
Brain development and maturation leads to grey matter networks that can be measured using magnetic resonance imaging. Network integrity is an indicator of information processing capacity which declines in neurodegenerative disorders such as Alzheimer disease (AD). The biological mechanisms causing this loss of network integrity remain unknown. Cerebrospinal fluid (CSF) protein biomarkers are available for studying diverse pathological mechanisms in humans and can provide insight into decline. We investigated the relationships between 10 CSF proteins and network integrity in mutation carriers (N=219) and noncarriers (N=136) of the Dominantly Inherited Alzheimer Network Observational study. Abnormalities in Aβ, Tau, synaptic (SNAP-25, neurogranin) and neuronal calcium-sensor protein (VILIP-1) preceded grey matter network disruptions by several years, while inflammation related (YKL-40) and axonal injury (NfL) abnormalities co-occurred and correlated with network integrity. This suggests that axonal loss and inflammation play a role in structural grey matter network changes. Key points Abnormal levels of fluid markers for neuronal damage and inflammatory processes in CSF are associated with grey matter network disruptions.The strongest association was with NfL, suggesting that axonal loss may contribute to disrupted network organization as observed in AD.Tracking biomarker trajectories over the disease course, changes in CSF biomarkers generally precede changes in brain networks by several years.
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11
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Li QF, Song LJ, Yang YY, Dong PP, Mei CJ, Li YX, Zhang JF, Xiong C, Yu CX, Yang K. [Recombinant Schistosoma japonicum egg ribonuclease SjCP1412 inhibits the activation of LX-2 hepatic stellate cells in vitro]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2023; 34:566-579. [PMID: 36642896 DOI: 10.16250/j.32.1374.2022163] [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: 01/17/2023]
Abstract
OBJECTIVE To investigate the effect of recombinant Schistosoma japonicum egg ribonuclease SjCP1412 (rSjCP1412) on proliferation, cell cycle, apoptosis and activation of human hepatic stellate cells LX-2 in vitro, and explore the underlying mechanisms. METHODS The rSjCP1412 protein was expressed in Escherichia coli BL21 by prokaryotic expression, and the highly purified soluble rSjCP1412 protein was prepared by Ni NTA affinity chromatography and urea gradient refolding dialysis. Yeast RNA was digested using 12.5, 25.0, 50.0 µg rSjCP1412 proteins at 37 °C for 2, 3, 4 h, and the enzymatic products were electrophoresed on 1.5% agarose gel to observe the RNAase activity of rSjCP1412 protein. The proliferation of LX-2 cells stimulated by different doses of rSjCP1412 protein for 48 hours was measured using CCK-8 assay, and the apoptosis of LX-2 cells stimulated by different doses of rSjCP1412 protein for 48 hours was detected using the Annexin V-FITC/PI double staining, while the percentage of LX-2 cells at G0/G1, S and G2/M phases of cell cycle following stimulation with different doses of rSjCP1412 protein for 48 h was detected by DAPI staining. The type I collagen, type III collagen and α-smooth muscle actin (α-SMA) mRNA expression was quantified using quantitative florescent real-time PCR (qPCR) assay and Western blotting at transcriptional and translational levels in LX-2 cells following stimulation with different doses of rSjCP1412 protein for 48 h, while soluble egg antigen (SEA) served a positive control and PBS without rSjCP1412 protein as a normal control in the above experiments. The expression of collagen I, α-SMA and Smad4 protein was determined using Western blotting in LX-2 cells following stimulation with rSjCP1412 protein, transforming growth factor-β1 (TGF-β1) alone or in combination, to examine the signaling for the effect of rSjCP1412 protein on LX-2 cells. RESULTS The rSjCP1412 protein was successfully expressed and the highly purified soluble rSjCP1412 protein was prepared, which had a RNase activity. Compared with the normal group, the survival rates of LX-2 cells significantly decreased post-treatment with 12.5, 25.0, 50.0 µg/mL rSjCP1412 protein and SEA for 48 h (F = 22.417 and 20.448, both P values < 0.05). The apoptotic rates of LX-2 cells significantly increased post-treatment with 12.5, 25.0, 50.0 µg/mL rSjCP1412 protein for 48 h (F = 11.350, P < 0.05), and treatment with 12.5, 25.0, 50.0 µg/mL rSjCP1412 protein for 48 h resulted in arrest of LX-2 cells in G0/G1 phase (F = 20.710, P < 0.05). Treatment with 12.5, 25.0, 50.0 µg/mL rSjCP1412 protein for 48 h caused a significant reduction in relative expression levels of collagen I (F = 11.340, P < 0.05), collagen III (F = 456.600, P < 0.05) and α-SMA mRNA (F = 23.100, P < 0.05) in LX-2 cells, and both rSjCP1412 protein and SEA treatment caused a significant reduction in collagen I (F = 1 302.000, P < 0.05), α-SMA (F = 49.750, P < 0.05) and Smad4 protein expression (F = 52.420, P < 0.05) in LX-2 cells. In addition, rSjCP1412 protein treatment inhibited collagen I (F = 66.290, P < 0.05), α-SMA (F = 31.300, P < 0.05) and Smad4 protein expression (F = 27.010, P < 0.05) in LX-2 cells activated by TGF-β1. CONCLUSIONS rSjCP1412 protein may induce apoptosis of LX-2 cells and inhibit proliferation, cell cycle and activation of LX-2 cells through down-regulating Smad4 signaling molecules.
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Affiliation(s)
- Q F Li
- School of Public Health, Nanjing Medical University, Nanjing, Jiangsu 211166, China.,Co-first authors
| | - L J Song
- School of Public Health, Nanjing Medical University, Nanjing, Jiangsu 211166, China.,National Health Commission Key Laboratory of Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Jiangsu Institute of Parasitic Diseases, Wuxi, Jiangsu 214064, China.,Co-first authors
| | - Y Y Yang
- National Health Commission Key Laboratory of Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Jiangsu Institute of Parasitic Diseases, Wuxi, Jiangsu 214064, China
| | - P P Dong
- National Health Commission Key Laboratory of Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Jiangsu Institute of Parasitic Diseases, Wuxi, Jiangsu 214064, China
| | - C J Mei
- National Health Commission Key Laboratory of Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Jiangsu Institute of Parasitic Diseases, Wuxi, Jiangsu 214064, China
| | - Y X Li
- National Health Commission Key Laboratory of Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Jiangsu Institute of Parasitic Diseases, Wuxi, Jiangsu 214064, China
| | - J F Zhang
- National Health Commission Key Laboratory of Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Jiangsu Institute of Parasitic Diseases, Wuxi, Jiangsu 214064, China
| | - C Xiong
- National Health Commission Key Laboratory of Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Jiangsu Institute of Parasitic Diseases, Wuxi, Jiangsu 214064, China
| | - C X Yu
- National Health Commission Key Laboratory of Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Jiangsu Institute of Parasitic Diseases, Wuxi, Jiangsu 214064, China
| | - K Yang
- School of Public Health, Nanjing Medical University, Nanjing, Jiangsu 211166, China.,National Health Commission Key Laboratory of Parasitic Disease Control and Prevention, Jiangsu Provincial Key Laboratory on Parasite and Vector Control Technology, Jiangsu Institute of Parasitic Diseases, Wuxi, Jiangsu 214064, China
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12
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He J, Hou S, Xiong C, Hu L, Gong L, Yu J, Zhou X, Chen Q, Yuan Y, He L, Zhu M, Li W, Shi Y, Sun Y, Pan H, Su B, Lu Y, Wu J. Avian influenza A virus H7N9 in China, a role reversal from reassortment receptor to the donator. J Med Virol 2023; 95:e28392. [PMID: 36484390 DOI: 10.1002/jmv.28392] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/30/2022] [Revised: 11/10/2022] [Accepted: 12/05/2022] [Indexed: 12/13/2022]
Abstract
Reassortment can introduce one or more gene segments of influenza A viruses (IAVs) into another, resulting in novel subtypes. Since 2013, a new outbreak of human highly pathogenic avian influenza has emerged in the Yangtze River Delta (YRD) and South-Central regions of China. In this study, using Anhui province as an example, we discuss the possible impact of H7N9 IAVs on future influenza epidemics through a series of gene reassortment events. Sixty-one human H7N9 isolates were obtained from five outbreaks in Anhui province from 2013 to 2019. Bioinformatics analyses revealed that all of them were characterized by low pathogenicity and high human or mammalian tropism and had introduced novel avian influenza A virus (AIV) subtypes such as H7N2, H7N6, H9N9, H5N6, H6N6, and H10N6 through gene reassortment. In reassortment events, Anhui isolates may donate one or more segments of HA, NA, and the six internal protein-coding genes for the novel subtype AIVs. Our study revealed that H7N9, H9N2, and H5N1 can serve as stable and persistent gene pools for AIVs in the YRD and South-Central regions of China. Novel AIV subtypes might be generated continuously by reassortment. These AIVs may have obtained human-type receptor-binding abilities from their donors and prefer binding to them, which can cause human epidemics through accidental spillover infections. Facing the continual threat of emerging avian influenza, constant monitoring of AIVs should be conducted closely for agricultural and public health.
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Affiliation(s)
- Jun He
- Anhui Provincial Center for Disease Control and Prevention, Hefei, China.,Public Health Research Institute of Anhui Province, Hefei, Anhui, China.,School of Public Health, Anhui Medical University, Hefei, Anhui, China
| | - Sai Hou
- Anhui Provincial Center for Disease Control and Prevention, Hefei, China.,Public Health Research Institute of Anhui Province, Hefei, Anhui, China
| | - Chenglong Xiong
- School of Public Health, Fudan University, Shanghai, China.,Key Laboratory of Public Health Safety, Ministry of Education, Fudan University, Shanghai, China
| | - Linjie Hu
- School of Public Health, Fudan University, Shanghai, China.,Key Laboratory of Public Health Safety, Ministry of Education, Fudan University, Shanghai, China
| | - Lei Gong
- Anhui Provincial Center for Disease Control and Prevention, Hefei, China.,Public Health Research Institute of Anhui Province, Hefei, Anhui, China
| | - Junling Yu
- Anhui Provincial Center for Disease Control and Prevention, Hefei, China.,Public Health Research Institute of Anhui Province, Hefei, Anhui, China
| | - Xiaoyu Zhou
- School of Public Health, Fudan University, Shanghai, China.,Key Laboratory of Public Health Safety, Ministry of Education, Fudan University, Shanghai, China
| | - Qingqing Chen
- Anhui Provincial Center for Disease Control and Prevention, Hefei, China.,Public Health Research Institute of Anhui Province, Hefei, Anhui, China
| | - Yuan Yuan
- Anhui Provincial Center for Disease Control and Prevention, Hefei, China.,Public Health Research Institute of Anhui Province, Hefei, Anhui, China
| | - Lan He
- Anhui Provincial Center for Disease Control and Prevention, Hefei, China.,Public Health Research Institute of Anhui Province, Hefei, Anhui, China
| | - Meng Zhu
- Anhui Provincial Center for Disease Control and Prevention, Hefei, China.,Public Health Research Institute of Anhui Province, Hefei, Anhui, China
| | - Weiwei Li
- Anhui Provincial Center for Disease Control and Prevention, Hefei, China.,Public Health Research Institute of Anhui Province, Hefei, Anhui, China
| | - Yonglin Shi
- Anhui Provincial Center for Disease Control and Prevention, Hefei, China.,Public Health Research Institute of Anhui Province, Hefei, Anhui, China
| | - Yong Sun
- Anhui Provincial Center for Disease Control and Prevention, Hefei, China.,Public Health Research Institute of Anhui Province, Hefei, Anhui, China
| | - Haifeng Pan
- School of Public Health, Anhui Medical University, Hefei, Anhui, China.,Anhui Province Key Laboratory of Major Autoimmune Diseases, Hefei, Anhui, China
| | - Bin Su
- Anhui Provincial Center for Disease Control and Prevention, Hefei, China.,Public Health Research Institute of Anhui Province, Hefei, Anhui, China
| | - Yihan Lu
- School of Public Health, Fudan University, Shanghai, China.,Key Laboratory of Public Health Safety, Ministry of Education, Fudan University, Shanghai, China
| | - Jiabing Wu
- Anhui Provincial Center for Disease Control and Prevention, Hefei, China.,Public Health Research Institute of Anhui Province, Hefei, Anhui, China.,School of Public Health, Anhui Medical University, Hefei, Anhui, China
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13
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Piccirella S, Van Neste L, Fowler C, Masters CL, Fripp J, Doecke JD, Xiong C, Uberti D, Kinnon P. A Conformational Variant of p53 (U-p53AZ) as Blood-Based Biomarker for the Prediction of the Onset of Symptomatic Alzheimer's Disease. J Prev Alzheimers Dis 2022; 9:469-479. [PMID: 35841248 DOI: 10.14283/jpad.2022.52] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
BACKGROUND Ongoing research seeks to identify blood-based biomarkers able to predict onset and progression of Alzheimer's disease (AD). OBJECTIVE The unfolded conformational variant of p53 (U-p53AZ), previously observed in AD individuals, was evaluated in plasma samples from individuals participating in the Australian Imaging, Biomarkers and Lifestyle (AIBL) cohort for diagnostic and prognostic assessment, validated on a neuropsychological-based diagnosis, over the course of six years. DESIGN Retrospective Longitudinal Prognostic biomarker study. SETTING Single-center study based on the AIBL cohort. PARTICIPANTS 482 participants of the AIBL cohort, aged 60-85 years, without uncontrolled diabetes, vascular disease, severe depression or psychiatric illnesses. MEASUREMENTS The AlzoSure® Predict test, consisting of immunoprecipitation (IP) followed by liquid chromatography (LC) tandem mass spectrometry (MS/MS), was performed to quantify the AZ 284® peptide as readout of U-p53AZ and compared with an independent neuropsychological diagnosis. The amyloid load via amyloid β-positron emission tomography (Aβ-PET) and supporting clinical information were included where possible. RESULTS U-p53AZ diagnostic and prognostic performance was assessed in both time-independent and time-dependent (36, 72 and 90 months following initial sampling) analyses. Prognostic performance of Aβ-PET and survival analyses with different risk factors (gender, Aβ-PET and APOE ε4 allele status) were also performed. U-p53AZ differentiated neuropsychologically graded AD from non-AD samples, and its detection at intermediate/high levels precisely identified present and future symptomatic AD. In both time-independent and time-dependent prognostic analyses U-p53AZ achieved area under the curve (AUC) >98%, significantly higher than Aβ-PET AUCs (between 84% and 93%, P respectively <0.0001 and <0.001). As single factor, U-p53AZ could clearly determine the risk of AD neuropsychological diagnosis over time (low versus intermediate/high U-p53AZ hazard ratio=2.99). Proportional hazards regression analysis identified U-p53AZ levels as a major independent predictor of AD onset. CONCLUSIONS These findings support use of U-p53AZ as blood-based biomarker predicting whether individuals would reach neuropsychologically-defined AD within six years prior to AD diagnosis. Integration of U-p53AZ in screening processes could support refined participant stratification for interventional studies.
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Sakinah S, Priya SP, Mok PL, Munisvaradass R, Teh SW, Sun Z, Alzahrani B, Bakar FA, Chee HY, Hamat RA, He G, Xiong C, Joseph N, Tong JB, Wu X, Maniam M, Samrot AV, Higuchi A, Kumar SS. Corrigendum: Stem Cell Therapy in Dengue Virus-Infected BALB/C Mice Improves Hepatic Injury. Front Cell Dev Biol 2022; 9:800659. [PMID: 35178398 PMCID: PMC8846376 DOI: 10.3389/fcell.2021.800659] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2021] [Accepted: 11/03/2021] [Indexed: 11/21/2022] Open
Affiliation(s)
- S Sakinah
- Department of Medical Microbiology, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Seri Kembangan, Malaysia
| | - Sivan Padma Priya
- Department of Medical Microbiology, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Seri Kembangan, Malaysia
| | - Pooi Ling Mok
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Jouf University, Sakakah, Saudi Arabia.,Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Seri Kembangan, Malaysia
| | - Rusheni Munisvaradass
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Seri Kembangan, Malaysia
| | - Seoh Wei Teh
- Department of Medical Microbiology, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Seri Kembangan, Malaysia
| | - Zhong Sun
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Seri Kembangan, Malaysia
| | - Badr Alzahrani
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Jouf University, Sakakah, Saudi Arabia
| | - Faizal Abu Bakar
- Bioinformatics and Computational Biology, Malaysia Genome Institute, National Institute of Biotechnology Malaysia (NIBM), Kajang, Malaysia
| | - Hui-Yee Chee
- Department of Medical Microbiology, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Seri Kembangan, Malaysia
| | - Rukman Awang Hamat
- Department of Medical Microbiology, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Seri Kembangan, Malaysia
| | - Guozhong He
- Institute of Health, Kunming Medical University, Kunming, China
| | - Chenglong Xiong
- Department of Medical Microbiology, School of Public Health, Fudan University, Shanghai, China
| | - Narcisse Joseph
- Department of Medical Microbiology, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Seri Kembangan, Malaysia
| | - Jia Bei Tong
- Department of Medical Microbiology, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Seri Kembangan, Malaysia
| | - Xiaoyun Wu
- First Affiliated Hospital of Baotou Medical College, Inner Mongolia University of Science and Technology, Baotou, China
| | | | - Antony V Samrot
- School of Bioscience, Faculty of Medicine, Bioscience and Nursing, MAHSA University, Jenjarom, Malaysia
| | - Akon Higuchi
- Department of Chemical and Materials Engineering, National Central University, Taoyuan City, Taiwan.,R&D Center for Membrane Technology, Chung Yuan Christian University, Taoyuan City, Taiwan
| | - S Suresh Kumar
- Department of Medical Microbiology, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Seri Kembangan, Malaysia.,Centre for Materials Engineering and Regenerative Medicine, Bharath Institute of Higher Education and Research, Chennai, India
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15
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Sun Z, He G, Huang N, Thilakavathy K, Lim JCW, Kumar SS, Xiong C. Glycyrrhizic Acid: A Natural Plant Ingredient as a Drug Candidate to Treat COVID-19. Front Pharmacol 2021; 12:707205. [PMID: 34305613 PMCID: PMC8298820 DOI: 10.3389/fphar.2021.707205] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.7] [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: 05/09/2021] [Accepted: 06/28/2021] [Indexed: 12/15/2022] Open
Abstract
The total number of cumulative cases and deaths from the COVID-19 pandemic caused by SARS-CoV-2 is still increasing worldwide. Although many countries have actively implemented vaccination strategies to curb the epidemic, there is no specific efficient therapeutic drug for this virus to effectively reduce deaths. Therefore, the underappreciated macromolecular compounds have become the spotlight of research. Furthermore, the medicinal compounds in plants that provide myriad possibilities to treat human diseases have become of utmost importance. Experience indicates that Traditional Chinese medicine effectively treats SARS and has been used for treating patients with COVID-19 in China. As one of the world's oldest herbal remedies, licorice is used for treating patients with all stages of COVID-19. Glycyrrhizic acid (GA), the main active compound in licorice, has been proven effective in killing the SARS virus. Meanwhile, as a natural plant molecule, GA can also directly target important protein structures of the SARS-CoV-2 virus and inhibit the replication of SARS-CoV-2. In this review, we summarized the immune synergy of GA and its potential role in treating COVID-19 complications. Besides, we reviewed its anti-inflammatory effects on the immune system and its positive effects in cooperation with various drugs to fight against COVID-19 and its comorbidities. The purpose of this review is to elucidate and suggest that GA can be used as a potential drug during COVID-19 treatment.
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Affiliation(s)
- Zhong Sun
- Department of Biomedical Science, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Malaysia
| | - Guozhong He
- School of Public Health, Kunming Medical University, Kunming, China
| | - Ninghao Huang
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai, China
- Key Laboratory of Public Health Safety, Ministry of Education, Fudan University, Shanghai, China
| | - Karuppiah Thilakavathy
- Department of Biomedical Science, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Malaysia
- Genetics and Regenerative Medicine Research Group, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Malaysia
| | - Jonathan Chee Woei Lim
- Department of Medicine, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Serdang, Malaysia
| | - S. Suresh Kumar
- Centre for Materials Engineering and Regenerative Medicine, Bharath Institute of Higher Education and Research, Chennai, India
| | - Chenglong Xiong
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai, China
- Key Laboratory of Public Health Safety, Ministry of Education, Fudan University, Shanghai, China
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16
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Sakinah S, Priya SP, Mok PL, Munisvaradass R, Teh SW, Sun Z, Alzahrani B, Abu Bakar F, Chee HY, Awang Hamat R, He G, Xiong C, Joseph N, Tong JB, Wu X, Maniam M, Samrot AV, Higuchi A, Kumar SS. Stem Cell Therapy in Dengue Virus-Infected BALB/C Mice Improves Hepatic Injury. Front Cell Dev Biol 2021; 9:637270. [PMID: 34291043 PMCID: PMC8287336 DOI: 10.3389/fcell.2021.637270] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/03/2020] [Accepted: 05/25/2021] [Indexed: 01/02/2023] Open
Abstract
Extensive clinical efforts have been made to control the severity of dengue diseases; however, the dengue morbidity and mortality have not declined. Dengue virus (DENV) can infect and cause systemic damage in many organs, resulting in organ failure. Here, we present a novel report showing a tailored stem-cell-based therapy that can aid in viral clearance and rescue liver cells from further damage during dengue infection. We administered a combination of hematopoietic stem cells and endothelial progenitor cells in a DENV-infected BALB/c mouse model and found that delivery of this cell cocktail had improved their liver functions, confirmed by hematology, histopathology, and next-generation sequencing. These stem and progenitor cells can differentiate into target cells and repair the damaged tissues. In addition, the regime can regulate endothelial proliferation and permeability, modulate inflammatory reactions, enhance extracellular matrix production and angiogenesis, and secrete an array of growth factors to create an enhanced milieu for cell reparation. No previous study has been published on the treatment of dengue infection using stem cells combination. In conclusion, dengue-induced liver damage was rescued by administration of stem cell therapy, with less apoptosis and improved repair and regeneration in the dengue mouse model.
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Affiliation(s)
- S Sakinah
- Department of Medical Microbiology, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Seri Kembangan, Malaysia
| | - Sivan Padma Priya
- Department of Medical Microbiology, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Seri Kembangan, Malaysia
| | - Pooi Ling Mok
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Jouf University, Sakakah, Saudi Arabia.,Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Seri Kembangan, Malaysia
| | - Rusheni Munisvaradass
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Seri Kembangan, Malaysia
| | - Seoh Wei Teh
- Department of Medical Microbiology, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Seri Kembangan, Malaysia
| | - Zhong Sun
- Department of Biomedical Sciences, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Seri Kembangan, Malaysia
| | - Badr Alzahrani
- Department of Clinical Laboratory Sciences, College of Applied Medical Sciences, Jouf University, Sakakah, Saudi Arabia
| | - Faizal Abu Bakar
- Bioinformatics and Computational Biology, Malaysia Genome Institute, National Institute of Biotechnology Malaysia (NIBM), Kajang, Malaysia
| | - Hui-Yee Chee
- Department of Medical Microbiology, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Seri Kembangan, Malaysia
| | - Rukman Awang Hamat
- Department of Medical Microbiology, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Seri Kembangan, Malaysia
| | - Guozhong He
- Institute of Health, Kunming Medical University, Kunming, China
| | - Chenglong Xiong
- Department of Medical Microbiology, School of Public Health, Fudan University, Shanghai, China
| | - Narcisse Joseph
- Department of Medical Microbiology, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Seri Kembangan, Malaysia
| | - Jia Bei Tong
- Department of Medical Microbiology, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Seri Kembangan, Malaysia
| | - Xiaoyun Wu
- First Affiliated Hospital of Baotou Medical College, Inner Mongolia University of Science and Technology, Baotou, China
| | - Mahendran Maniam
- First Affiliated Hospital of Baotou Medical College, Inner Mongolia University of Science and Technology, Baotou, China
| | - Antony V Samrot
- School of Bioscience, Faculty of Medicine, Bioscience and Nursing, MAHSA University, Jenjarom, Malaysia
| | - Akon Higuchi
- Department of Chemical and Materials Engineering, National Central University, Taoyuan City, Taiwan.,R&D Center for Membrane Technology, Chung Yuan Christian University, Taoyuan City, Taiwan
| | - S Suresh Kumar
- Department of Medical Microbiology, Faculty of Medicine and Health Sciences, Universiti Putra Malaysia, Seri Kembangan, Malaysia.,Centre for Materials Engineering and Regenerative Medicine, Bharath Institute of Higher Education and Research, Chennai, India
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17
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Xiong C, Shi F, Wang H, Cai J, Zhao S, Tan X, Hu H, Liu G, Noudem JG, Jiang J. Achieving High Thermoelectric Performance of n-Type Bi 2Te 2.79Se 0.21 Sintered Materials by Hot-Stacked Deformation. ACS Appl Mater Interfaces 2021; 13:15429-15436. [PMID: 33755429 DOI: 10.1021/acsami.1c02417] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Abstract
Bismuth telluride has been the only commercial thermoelectric candidate, but the n-type sintered material lags well behind the p-type one in the zT value, which severely limits the further development of thermoelectrics. Here, we report a promising technique named hot-stacked deformation to effectively improve the thermoelectric properties of n-type Bi2Te2.79Se0.21 + 0.067 wt % BiCl3 materials based on zone-melting ingots. It is found that a high grain alignment is maintained during the plastic deformation and the carrier concentration is properly optimized owing to the donor-like effect, leading to an enhanced power factor. Moreover, the lattice thermal conductivity is obviously suppressed due to the emerged phonon scattering centers of dense grain boundaries and dislocations. These effects synergistically yield a maximum zT value of 1.38 and an average zTave of 1.18 between 300 and 500 K in the hot-stacked deformed sample, which is approximately 42% higher than those of the zone-melting ingots.
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Affiliation(s)
- Chenglong Xiong
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
- University of Chinese Academy of Science, Beijing 101408, China
| | - Fanfan Shi
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
| | - Hongxiang Wang
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
- University of Chinese Academy of Science, Beijing 101408, China
| | - Jianfeng Cai
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
| | - Simao Zhao
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
| | - Xiaojian Tan
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
- University of Chinese Academy of Science, Beijing 101408, China
| | - Haoyang Hu
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
| | - Guoqiang Liu
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
- University of Chinese Academy of Science, Beijing 101408, China
| | - Jacques G Noudem
- CRISMAT Laboratory, Normandie University, ENSICAEN, UNICAEN, CNRS, Caen 14000, France
| | - Jun Jiang
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
- University of Chinese Academy of Science, Beijing 101408, China
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18
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Wen Y, Xiang G, Xiong C, Yang Y, Zhang J. Isolated left subclavian artery with right aortic arch and bilateral ductus arteriosus: a challenging fetal diagnosis. Ultrasound Obstet Gynecol 2021; 57:500-501. [PMID: 32250490 DOI: 10.1002/uog.22039] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/18/2020] [Revised: 03/20/2020] [Accepted: 03/27/2020] [Indexed: 06/11/2023]
Affiliation(s)
- Y Wen
- Department of Ultrasound, The Fifth People's Hospital of Chengdu, Chengdu, Sichuan Province, China
| | - G Xiang
- Department of Ultrasound, The Fifth People's Hospital of Chengdu, Chengdu, Sichuan Province, China
| | - C Xiong
- Department of Ultrasound, The Fifth People's Hospital of Chengdu, Chengdu, Sichuan Province, China
| | - Y Yang
- Department of Radiology, The Women and Children's Hospital of Chengdu, Chengdu, Sichuan Province, China
| | - J Zhang
- Department of Ultrasound, The Fifth People's Hospital of Chengdu, Chengdu, Sichuan Province, China
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19
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Sun Z, He G, Huang N, Chen H, Zhang S, Zhao Z, Zhao Y, Yang G, Yang S, Xiong H, Karuppiah T, Kumar SS, He J, Xiong C. Impact of the Inflow Population From Outbreak Areas on the COVID-19 Epidemic in Yunnan Province and the Recommended Control Measures: A Preliminary Study. Front Public Health 2020; 8:609974. [PMID: 33344408 PMCID: PMC7738349 DOI: 10.3389/fpubh.2020.609974] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [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: 09/24/2020] [Accepted: 11/11/2020] [Indexed: 12/15/2022] Open
Abstract
Background: COVID-19 developed into a global pandemic in 2020 and poses challenges regarding the prevention and control capabilities of countries. A large number of inbound travelers from other regions could lead to a renewed outbreak of COVID-19 in the local regions. Globally, as a result of the imbalance in the control of the epidemic, all countries are facing the risk of a renewed COVID-19 outbreak brought about by travelers from epidemic areas. Therefore, studies on a proper management of the inbound travelers are urgent. Methods: We collected a total of 4,733,414 inbound travelers and 174 COVID-19 diagnosed patients in Yunnan province from 21 January 2020 to 20 February 2020. Data on place of origin, travel history, age, and gender, as well as whether they had suspected clinical manifestations for inbound travelers in Yunnan were collected. The impact of inbound travelers on the local epidemic was analyzed with a collinear statistical analysis and the effect of the control measures on the epidemic was evaluated with a sophisticated modeling approach. Results: Of the 174 COVID-19 patients, 60.9% were not from Yunnan, and 76.4% had a history of travel in Hubei. The amount of new daily cases in Yunnan was significant correlated with the number of inbound travelers from Hubei and suspected cases among them. Using Susceptible–Exposed–Infectious–Recovered (SEIR) model analysis, we found that the prevention and control measures dropped the local R0 down to 1.07 in Yunnan province. Conclusions: Our preliminary analysis showed that the proper management of inbound travelers from outbreak areas has a significantly positive effect on the prevention and control of the virus. In the process of resettlement, some effective measures taken by Yunnan province may provide an important reference for preventing the renewed COVID-19 outbreak in other regions.
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Affiliation(s)
- Zhong Sun
- Department of Biomedical Science, Faculty of Medicine & Health Sciences, Universiti Putra Malaysia, Serdang, Malaysia
| | - Guozhong He
- School of Public Health, Kunming Medical University, Kunming, China
| | - Ninghao Huang
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai, China.,Key Laboratory of Public Health Safety, Ministry of Education, School of Public Health, Fudan University, Shanghai, China
| | - Hongyu Chen
- School of Public Health, Kunming Medical University, Kunming, China
| | - Shuwei Zhang
- School of Public Health, Kunming Medical University, Kunming, China
| | - Zizhao Zhao
- School of Public Health, Kunming Medical University, Kunming, China
| | - Yao Zhao
- School of Public Health, Kunming Medical University, Kunming, China
| | - Guang Yang
- School of Public Health, Kunming Medical University, Kunming, China
| | - Songwang Yang
- School of Public Health, Kunming Medical University, Kunming, China
| | - Haiyan Xiong
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai, China.,Key Laboratory of Public Health Safety, Ministry of Education, School of Public Health, Fudan University, Shanghai, China
| | - Thilakavathy Karuppiah
- Department of Biomedical Science, Faculty of Medicine & Health Sciences, Universiti Putra Malaysia, Serdang, Malaysia.,Genetics and Regenerative Medicine Research Group, Faculty of Medicine & Health Sciences, Universiti Putra Malaysia, Serdang, Malaysia
| | - S Suresh Kumar
- Genetics and Regenerative Medicine Research Group, Faculty of Medicine & Health Sciences, Universiti Putra Malaysia, Serdang, Malaysia.,Department of Medical Microbiology and Parasitology, Universiti Putra Malaysia, Serdang, Malaysia
| | - Jibo He
- Center for Disease Control and Prevention in Yunnan Province, Kunming, China
| | - Chenglong Xiong
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai, China.,Key Laboratory of Public Health Safety, Ministry of Education, School of Public Health, Fudan University, Shanghai, China
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20
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Shi F, Tan C, Wang H, Tan X, Yin Y, Yu B, Cai J, Xiong C, Liu G, Jiang J. Enhanced Thermoelectric Properties of p-Type Bi 0.48Sb 1.52Te 3/Sb 2Te 3 Composite. ACS Appl Mater Interfaces 2020; 12:52922-52928. [PMID: 33170630 DOI: 10.1021/acsami.0c15991] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Constructing a nanocomposite to introduce a coherent interface is an effective way to improve the property of thermoelectric material. Here, a series composites of Bi0.48Sb1.52Te3-x wt % Sb2Te3 (x = 0, 0.3, 0.5, 0.8, and 1.0) were synthesized, where the hydrothermally prepared Sb2Te3 nanosheets were intimately wrapped in the solid-state-reacted Bi0.48Sb1.52Te3 matrix. The formation of a coherent interface was observed and confirmed by the scanning electron microscopy characterization. As the Sb2Te3 content was over 0.5 wt %, the carrier mobility could increase by 26%, while the carrier concentration decreased by 9% compared to those of the pure matrix at 300 K, enhancing the power factor to 40.1 μW/cm K2. Moreover, the Bi0.48Sb1.52Te3-0.5 wt % Sb2Te3 sample exhibited a reduced lattice thermal conductivity of 0.83 W/m K at room temperature, resulting from the strengthened phonon scattering by interfaces. Combined with the manipulations of both the electronic and thermal transport by constructing a coherent interface, a maximum ZT of 1.05 was obtained in the x = 0.5 composite at 300 K, and it was improved by 20% compared with the result of the Bi0.48Sb1.52Te3 matrix.
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Affiliation(s)
- Fanfan Shi
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
- Nano Science and Technology Institute, University of Science and Technology of China, Suzhou 215123, China
| | - Chang Tan
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
| | - Hongxiang Wang
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiaojian Tan
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yinong Yin
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
| | - Bo Yu
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
| | - Jianfeng Cai
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
| | - Chenglong Xiong
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Guoqiang Liu
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jun Jiang
- Ningbo Institute of Materials Technology and Engineering, Chinese Academy of Sciences, Ningbo 315201, China
- Center of Materials Science and Optoelectronics Engineering, University of Chinese Academy of Sciences, Beijing 100049, China
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21
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Abstract
Background Alterations in serum creatinine levels delay the identification of severe cardiac surgery-associated acute kidney injury. To provide timely diagnosis, novel predictive tools should be investigated. Methods and Results This prospective observational study consists of a screening cohort (n=204) and a validation cohort (n=198) from 2 centers from our hospital. Thirty-two inflammatory cytokines were measured via a multiplex cytokine assay. Least absolute shrinkage and selection operator regression was conducted to select the cytokine signatures of severe cardiac surgery-associated acute kidney injury. Afterwards, the significant candidates including interferon-γ, interleukin-16, and MIP-1α (macrophage inflammatory protein-1 alpha) were integrated into the logistic regression model to construct a predictive model. The predictive accuracy of the model was evaluated in these 2 cohorts. The cytokine-based model yielded decent performance in both the screening (C-statistic: 0.87, Brier 0.10) and validation cohorts (C-statistic: 0.86, Brier 0.11). Decision curve analysis revealed that the cytokine-based model had a superior net benefit over both the clinical factor-based model and the established plasma biomarker-based model for predicting severe acute kidney injury. In addition, elevated concentrations of each cytokine were associated with longer mechanical ventilation times, intensive care unit stays, and hospital stays. They strongly predicted the risk of composite events (defined as treatment with renal replacement therapy and/or in-hospital death) (OR of the fourth versus the first quartile [95% CI]: interferon-γ, 27.78 [3.61-213.84], interleukin-16, 38.07 [4.98-291.07], and MIP-1α, 9.13 [2.84-29.33]). Conclusions Our study developed and validated a promising blood cytokine-based model for predicting severe acute kidney injury after cardiac surgery and identified prognostic biomarkers for assisting in outcome risk stratification.
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Affiliation(s)
- Zhongli Chen
- Department of Vascular & Cardiology Ruijin Hospital Shanghai Jiaotong University School of Medicine Shanghai China
| | - Liang Chen
- Department of Cardiac Surgery State Key Laboratory of Cardiovascular Disease Fuwai Hospital National Center for Cardiovascular Diseases Chinese Academy of Medical Sciences and Peking Union Medical College Beijing China
| | - Guangyu Yao
- Department of Thoracic Surgery Zhongshan Hospital Fudan University Shanghai China
| | - Wenbo Yang
- Department of Vascular & Cardiology Ruijin Hospital Shanghai Jiaotong University School of Medicine Shanghai China
| | - Ke Yang
- Department of Vascular & Cardiology Ruijin Hospital Shanghai Jiaotong University School of Medicine Shanghai China
| | - Chenglong Xiong
- Department of Epidemiology School of Public Health Fudan University Shanghai China.,Fudan University Shanghai China
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22
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Chen L, Feng Y, Tang J, Hu W, Zhao P, Guo X, Huang N, Gu Y, Hu L, Duru F, Xiong C, Chen M. Surface electrocardiographic characteristics in coronavirus disease 2019: repolarization abnormalities associated with cardiac involvement. ESC Heart Fail 2020; 7:4408-4415. [PMID: 32898341 PMCID: PMC7754780 DOI: 10.1002/ehf2.12991] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [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: 05/06/2020] [Revised: 08/11/2020] [Accepted: 08/17/2020] [Indexed: 01/08/2023] Open
Abstract
Aims The coronavirus disease 2019 (COVID‐19) has spread rapidly around the globe, causing significant morbidity and mortality. This study aims to describe electrocardiographic (ECG) characteristics of COVID‐19 patients and to identify ECG parameters that are associated with cardiac involvement. Methods and results The study included patients who were hospitalized with COVID‐19 diagnosis and had cardiac biomarker assessments and simultaneous 12‐lead surface ECGs. Sixty‐three hospitalized patients (median 53 [inter‐quartile range, 43–65] years, 76.2% male) were enrolled, including patients with (n = 23) and without (n = 40) cardiac injury. Patients with cardiac injury were older, had more pre‐existing co‐morbidities, and had higher mortality than those without cardiac injury. They also had prolonged QTc intervals and more T wave changes. Logistic regression model identified that the number of abnormal T waves (odds ratio (OR), 2.36 [95% confidence interval (CI), 1.38–4.04], P = 0.002) and QTc interval (OR, 1.31 [95% CI, 1.03–1.66], P = 0.027) were independent indicators for cardiac injury. The combination model of these two parameters along with age could well discriminate cardiac injury (area the under curve 0.881, P < 0.001) by receiver operating characteristic analysis. Cox regression model identified that the presence of T wave changes was an independent predictor of mortality (hazard ratio, 3.57 [1.40, 9.11], P = 0.008) after adjustment for age. Conclusions In COVID‐19 patients, presence of cardiac injury at admission is associated with poor clinical outcomes. Repolarization abnormalities on surface ECG such as abnormal T waves and prolonged QTc intervals are more common in patients with cardiac involvement and can help in further risk stratification.
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Affiliation(s)
- Liang Chen
- Department of Emergency, Huashan Hospital, Fudan University, 12 Middle Urumqi Road, Shanghai, 200040, China.,State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, Chinese Academy of Medical Sciences, Beijing, China.,Department of Epidemiology, School of Public Health, Fudan University, 130 Dong'an Road, Shanghai, 200032, China
| | - Yi Feng
- Department of Integrative Medicine and Neurobiology, School of Basic Medical Sciences, Fudan University, Shanghai, China
| | - Jia Tang
- Department of Emergency, Huashan Hospital, Fudan University, 12 Middle Urumqi Road, Shanghai, 200040, China
| | - Wei Hu
- Department of Emergency, Huashan Hospital, Fudan University, 12 Middle Urumqi Road, Shanghai, 200040, China
| | - Ping Zhao
- Department of Epidemiology, School of Public Health, Fudan University, 130 Dong'an Road, Shanghai, 200032, China.,Key Laboratory of Public Health Safety, Ministry of Education, School of Public Health, Fudan University, Shanghai, China
| | - Xiaoxiao Guo
- Department of Emergency, Huashan Hospital, Fudan University, 12 Middle Urumqi Road, Shanghai, 200040, China
| | - Ninghao Huang
- Department of Epidemiology, School of Public Health, Fudan University, 130 Dong'an Road, Shanghai, 200032, China.,Key Laboratory of Public Health Safety, Ministry of Education, School of Public Health, Fudan University, Shanghai, China
| | - Yuwei Gu
- Department of Emergency, Huashan Hospital, Fudan University, 12 Middle Urumqi Road, Shanghai, 200040, China
| | - Linjie Hu
- Department of Epidemiology, School of Public Health, Fudan University, 130 Dong'an Road, Shanghai, 200032, China.,Key Laboratory of Public Health Safety, Ministry of Education, School of Public Health, Fudan University, Shanghai, China
| | - Firat Duru
- University Heart Center, Raemistrasse 100, Zurich, CH-8091, Switzerland.,Center for Integrative Human Physiology, University of Zurich, Zurich, Switzerland
| | - Chenglong Xiong
- Department of Epidemiology, School of Public Health, Fudan University, 130 Dong'an Road, Shanghai, 200032, China.,Key Laboratory of Public Health Safety, Ministry of Education, School of Public Health, Fudan University, Shanghai, China
| | - Mingquan Chen
- Department of Emergency, Huashan Hospital, Fudan University, 12 Middle Urumqi Road, Shanghai, 200040, China
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23
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Wang H, Luo G, Tan C, Xiong C, Guo Z, Yin Y, Yu B, Xiao Y, Hu H, Liu G, Tan X, Noudem JG, Jiang J. Phonon Engineering for Thermoelectric Enhancement of p-Type Bismuth Telluride by a Hot-Pressing Texture Method. ACS Appl Mater Interfaces 2020; 12:31612-31618. [PMID: 32543171 DOI: 10.1021/acsami.0c07376] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Phonon engineering is a core stratagem to improve the thermoelectric performance, and multi-scale defects are expected to scatter a broad range of phonons and compress the lattice thermal conductivity. Here, we demonstrate obviously enhanced thermoelectric properties in Bi0.48Sb1.52Te3 alloy by a hot-pressing texture method along the axial direction of a zone-melted ingot. It is found that a plastic deformation of grain refinement and rearrangement occurs during the textured pressing process. Although the obtained power factor is slightly decreased, a large amount of grain boundaries emerges in the textured samples and dense dislocations are observed around the boundaries and inside the grains. These additional phonon scattering centers can effectively scatter the low- and mid-frequency phonons, and the corresponding lattice thermal conductivity is significantly reduced to only 50% of that of zone-melted samples. Consequently, the maximum figure of merit (ZT) reaches 1.44 at 330 K and the average ZT (300-380 K) reaches 1.38. This study suggests that the simple hot-pressing texture technique is a promising method to significantly optimize the cooling capacity of Bi0.48Sb1.52Te3-based thermoelectric refrigeration.
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Affiliation(s)
- Hongxiang Wang
- Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences, Ningbo 315201, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Guoqiang Luo
- Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences, Ningbo 315201, China
| | - Chang Tan
- Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences, Ningbo 315201, China
| | - Chenglong Xiong
- Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences, Ningbo 315201, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhe Guo
- Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences, Ningbo 315201, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yinong Yin
- Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences, Ningbo 315201, China
| | - Bo Yu
- Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences, Ningbo 315201, China
| | - Yukun Xiao
- Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences, Ningbo 315201, China
| | - Haoyang Hu
- Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences, Ningbo 315201, China
| | - Guoqiang Liu
- Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences, Ningbo 315201, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiaojian Tan
- Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences, Ningbo 315201, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | | | - Jun Jiang
- Ningbo Institute of Materials Technology and Engineering Chinese Academy of Sciences, Ningbo 315201, China
- University of Chinese Academy of Sciences, Beijing 100049, China
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24
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Chen L, Li X, Chen M, Feng Y, Xiong C. The ACE2 expression in human heart indicates new potential mechanism of heart injury among patients infected with SARS-CoV-2. Cardiovasc Res 2020; 116:1097-1100. [PMID: 32227090 PMCID: PMC7184507 DOI: 10.1093/cvr/cvaa078] [Citation(s) in RCA: 758] [Impact Index Per Article: 189.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/13/2020] [Accepted: 03/25/2020] [Indexed: 01/08/2023] Open
Abstract
A new type of pneumonia caused by a novel coronavirus SARS-CoV-2 outbreaks recently in China and spreads into many other countries. This disease, named as COVID-19, is similar to patients infected by SARS-CoV and MERS-CoV, and nearly 20% of patients developed severe condition. Cardiac injury is a prevalent complication of severe patients, exacerbating the disease severity in coronavirus disease 2019 (COVID-19) patients. Angiotensin-converting enzyme 2 (ACE2), the key host cellular receptor of SARS-CoV-2, has been identified in multiple organs, but its cellular distribution in human heart is not illuminated clearly. This study performed the first state-of-art single cell atlas of adult human heart, and revealed that pericytes with high expression of ACE2 might act as the target cardiac cell of SARS-CoV-2. The pericytes injury due to virus infection may result in capillary endothelial cells dysfunction, inducing microvascular dysfunction. And patients with basic heart failure disease showed increased ACE2 expression at both mRNA and protein levels, meaning that if infected by the virus these patients may have higher risk of heart attack and critically ill condition. The finding of this study explains the high rate of severe cases among COVID-19 patients with basic cardiovascular disease; and these results also perhaps provide important reference to clinical treatment of cardiac injury among severe patients infected by SARS-CoV-2.
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Affiliation(s)
- Liang Chen
- Department of Epidemiology, School of Public Health, Fudan University, NO. 130 Dong'an Road, Xuhui district, Shanghai 200032, China
| | - Xiangjie Li
- Department of Medical Biostatistics, Center for Applied Statistics, School of Statistics, Renmin University of China, Beijing 100872, China
| | - Mingquan Chen
- Department of Emergency, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Yi Feng
- Department of Integrative Medicine and Neurobiology, School of Basic Medical Sciences; Institutes of Brain Science, State Key Laboratory of Medical Neurobiology, Fudan Institutes of Integrative Medicine, Fudan University, Shanghai 200032, China
| | - Chenglong Xiong
- Department of Epidemiology, School of Public Health, Fudan University, NO. 130 Dong'an Road, Xuhui district, Shanghai 200032, China
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25
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Li M, Chen L, Zhang J, Xiong C, Li X. The SARS-CoV-2 receptor ACE2 expression of maternal-fetal interface and fetal organs by single-cell transcriptome study. PLoS One 2020; 15:e0230295. [PMID: 32298273 PMCID: PMC7161957 DOI: 10.1371/journal.pone.0230295] [Citation(s) in RCA: 247] [Impact Index Per Article: 61.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/24/2020] [Accepted: 03/31/2020] [Indexed: 12/16/2022] Open
Abstract
The new type of pneumonia caused by the SARS-CoV-2 (Severe acute respiratory syndrome coronavirus 2) has been declared as a global public health concern by WHO. As of April 3, 2020, more than 1,000,000 human infections have been diagnosed around the world, which exhibited apparent person-to-person transmission characteristics of this virus. The capacity of vertical transmission in SARS-CoV-2 remains controversial recently. Angiotensin-converting enzyme 2 (ACE2) is now confirmed as the receptor of SARS-CoV-2 and plays essential roles in human infection and transmission. In present study, we collected the online available single-cell RNA sequencing (scRNA-seq) data to evaluate the cell specific expression of ACE2 in maternal-fetal interface as well as in multiple fetal organs. Our results revealed that ACE2 was highly expressed in maternal-fetal interface cells including stromal cells and perivascular cells of decidua, and cytotrophoblast and syncytiotrophoblast in placenta. Meanwhile, ACE2 was also expressed in specific cell types of human fetal heart, liver and lung, but not in kidney. And in a study containing series fetal and post-natal mouse lung, we observed ACE2 was dynamically changed over the time, and ACE2 was extremely high in neonatal mice at post-natal day 1~3. In summary, this study revealed that the SARS-CoV-2 receptor was widely spread in specific cell types of maternal-fetal interface and fetal organs. And thus, both the vertical transmission and the placenta dysfunction/abortion caused by SARS-CoV-2 need to be further carefully investigated in clinical practice.
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Affiliation(s)
- Mengmeng Li
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing, China
| | - Liang Chen
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai, China
| | - Jingxiao Zhang
- Center for Applied Statistics, School of Statistics, Renmin University of China, Beijing, China
| | - Chenglong Xiong
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai, China
- School of Public Health, Key Laboratory of Public Health Safety, Ministry of Education, Fudan University, Shanghai, China
- * E-mail: (CX); (XL)
| | - Xiangjie Li
- Center for Applied Statistics, School of Statistics, Renmin University of China, Beijing, China
- * E-mail: (CX); (XL)
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Gao Q, Cao H, Fan J, Zhang Z, Jin S, Su F, Leng P, Xiong C. Field evaluation of Mosq-ovitrap, Ovitrap and a CO 2-light trap for Aedes albopictus sampling in Shanghai, China. PeerJ 2019; 7:e8031. [PMID: 31799071 PMCID: PMC6884993 DOI: 10.7717/peerj.8031] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [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: 06/13/2019] [Accepted: 10/14/2019] [Indexed: 11/20/2022] Open
Abstract
BACKGROUND The Mosq-ovitrap (MOT) is currently used for routine surveillance of container-breeding Aedes in China. However, the effectiveness of monitoring Aedes albopictus using the MOT and other mosquito monitoring methods, such as the Ovitrap (OT) and the CO2-light trap (CLT), have not been extensively compared. Moreover, little is known about the spatial-temporal correlations of eggs with adult Ae. albopictus abundance among these three types of traps. METHODS Comparative field evaluation of MOT, OT and CLT for Ae. albopictus monitoring was conducted simultaneously at two city parks and three residential neighborhoods in downtown Shanghai for 8 months from April 21 to December 21, 2017. RESULTS Significantly more Ae. albopictus eggs were collected from both MOTs and OTs when traps remained in the field for 10 d or 7 d compared with 3 d (MOT: 50.16, 34.15 vs. 12.38 per trap, P < 0.001; OT: 3.98, 2.92 vs. 0.63 per trap, P < 0.001). Egg collections of MOTs were significantly greater than OTs for all three exposure durations (Percent positive: X 2 = 72.251, 52.420 and 51.429, P value all < 0.001; egg collections: t = 8.068, 8.517 and 10.021, P value all <0.001). Significant temporal correlations were observed between yields of MOT and CLT in all sampling locations and 3 different MOT exposure durations (correlation coefficient r ranged from 0.439 to 0.850, P values all < 0.05). However, great variation was found in the spatial distributions of Ae. albopictus density between MOT and CLT. MOT considerably underestimated Ae. albopictus abundances in areas with high Ae. albopictus density (>25.56 per day ⋅ trap by CLT). CONCLUSION The MOT was more efficient than the OT in percent positive scores and egg collections of Ae. albopictus. The minimum length of time that MOTs are deployed in the field should not be less than 7 d, as Ae. albopictus collections during this period were much greater than for 3 d of monitoring. MOT considerably underestimated Ae. albopictus abundance in areas with high Aedes albopictus density compared to CLT. In areas with moderate Aedes albopictus densities, MOT results were significantly correlated with CLT catches.
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Affiliation(s)
- Qiang Gao
- Department of Vector Control, Shanghai Huangpu Center for Disease Control & Prevention, Shanghai, China
| | - Hui Cao
- Department of Vector Control, Shanghai Huangpu Center for Disease Control & Prevention, Shanghai, China
| | - Jian Fan
- Department of Vector Control, Shanghai Huangpu Center for Disease Control & Prevention, Shanghai, China
| | - Zhendong Zhang
- Department of Vector Control, Shanghai Huangpu Center for Disease Control & Prevention, Shanghai, China
| | - Shuqing Jin
- Department of Vector Control, Shanghai Huangpu Center for Disease Control & Prevention, Shanghai, China
| | - Fei Su
- Department of Vector Control, Shanghai Huangpu Center for Disease Control & Prevention, Shanghai, China
| | - Peien Leng
- Department of Vector Control, Shanghai Municipal Center for Disease Control & Prevention, Shanghai, China
| | - Chenglong Xiong
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai, China
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Silbernagel KM, Jechorek RP, Carver CN, Horter BL, Lindberg KG, Aleo V, Anderson G, Bannach B, Bulthaus M, Cha K, Dixon K, Hemming B, Horter B, Iannucci; M, Johnson A, Johnson K, Kaufer A, Kemp S, King J, Kupski B, Kusch S, Luebbert B, Lyke H, Makepeace; C, Otten N, Schomogy T, Strand S, Xiong C. 3M™ Petrifilm™ Staph Express Count Plate Method for the Enumeration of Staphylococcus aureus in Selected Dairy Foods: Collaborative Study. J AOAC Int 2019. [DOI: 10.1093/jaoac/86.5.963] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
Abstract
The 3M™ Petrifilm™ Staph Express Count plate method was compared with AOAC Official Method 975.55 for the enumeration of Staphylococcus aureus in selected foods. Five foods—ice cream, raw milk, yogurt, whey powder, and cheese—were analyzed for S. aureus by 12 collaborating laboratories. For each food tested, the collaborators received 8 blind test samples consisting of a control sample, a low inoculation level, a medium inoculation level, and a medium inoculation level with background flora, each in duplicate. The mean log10 counts for the methods were comparable for all 5 foods. The repeatability and reproducibility variances of the 24 h Petrifilm Staph Express Count plate method were similar to those of the 72 h standard method.
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Chen L, Xiong J, Peng L, Yang P, Yu H, Yan Q, Cheng Y, Zhao G, Chen Y, Jiang Q, Xiong C. Sequence analysis of reassortants within H3N2 subtype influenza A virus circulated in Hong Kong, 2014-2017. Travel Med Infect Dis 2019; 33:101510. [PMID: 31698043 DOI: 10.1016/j.tmaid.2019.101510] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/19/2018] [Revised: 09/16/2019] [Accepted: 11/01/2019] [Indexed: 12/01/2022]
Affiliation(s)
- Liang Chen
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai, China; School of Public Health, Fudan University, Key Laboratory of Public Health Safety, Ministry of Education, Shanghai, China
| | - Jiasheng Xiong
- College of Marine Science, Shandong University, Weihai, China
| | - Li Peng
- Shanghai Key Laboratory of Meteorology and Health, Shanghai, China
| | - Pengfei Yang
- Huai'an Center for Disease Control and Prevention, Huai'an, China
| | - Hao Yu
- Hongze Center for Disease Control and Prevention, Hongze, China
| | - Qingli Yan
- Huai'an Center for Disease Control and Prevention, Huai'an, China
| | - Yan Cheng
- Hongze Center for Disease Control and Prevention, Hongze, China
| | - Genming Zhao
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai, China; School of Public Health, Fudan University, Key Laboratory of Public Health Safety, Ministry of Education, Shanghai, China
| | - Yue Chen
- School of Epidemiology and Public Health, Faculty of Medicine, University of Ottawa, Ottawa, Canada
| | - Qingwu Jiang
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai, China; School of Public Health, Fudan University, Key Laboratory of Public Health Safety, Ministry of Education, Shanghai, China
| | - Chenglong Xiong
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai, China; School of Public Health, Fudan University, Key Laboratory of Public Health Safety, Ministry of Education, Shanghai, China.
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Xiong C. The impact of newly diagnosed diabetes mellitus on cancer-free survival in patients without colorectal polyps: A secondary analysis of Korean multicenter cancer cohort. Ann Oncol 2019. [DOI: 10.1093/annonc/mdz421.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
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He G, Yang P, Yan Q, Xiong C. Debate on the compositions of influenza B in northern hemisphere seasonal influenza vaccines. Antimicrob Resist Infect Control 2019; 8:164. [PMID: 31673353 PMCID: PMC6819444 DOI: 10.1186/s13756-019-0631-2] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/09/2019] [Accepted: 10/17/2019] [Indexed: 11/24/2022] Open
Abstract
Background Annual influenza vaccination is the most effective way to prevent influenza. Influenza vaccines have traditionally included the hemagglutinins (HA) and neuraminidases (NA) from the two A viruses (H1N1 and H3N2) and either B Yamagata or B Victoria. Mismatches between circulating isolates of influenza B and the vaccines are very common. Taking 2017/2018 winter in northern hemisphere as an example, this study was designed to find out the reasons for mismatch between the trivalent influenza vaccine (TIV) and most of the epidemic isolates at that time, and to discuss if there are some optimized programs for seasonal influenza vaccines. Methods HA and NA sequences of the seasonal isolates circulating from December 1, 2017 to February 28, 2018, and in the previously other 7 winters in northern hemisphere from Global Initiative on Sharing All Influenza Data (GISAID) and the influenza database of National Center for Biotechnology Information (NCBI). Phylogenetic trees and genetic distances were constructed or calculated by using MAFFT and MEGA 6.0 software. Results Influenza B composition in the TIV recommendation mismatched most of circulating viruses in 2017/2018 winter; the vaccine strain was from the B/Victoria lineage, while most of epidemic isolates were from the B/Yamagata lineage. The epidemic lineage of influenza B reached its peak a little late in the previous winter might be responsible for this mismatch. During 2010-2018, the mean genetic distances between epidemic isolates of influenza A (H1N1 and H3N2) and the vaccines were no higher than 0.02375 ± 0.00341 in both HA and NA. However, concerning influenza B virus, when forecasting done well, the mean genetic distances between epidemic isolates and the vaccines were no higher than 0.02368 ± 0.00272; otherwise, the distances could reach 0.13695 ± 0.00238. Conclusion When applying quadrivalent influenza vaccines (QIVs) for vaccination, the recommendations of compositions for influenza B could be altered and assessed once in 3 or 4 years; when economic burden was considered intensively and TIVs were utilized, the recommended compositions for influenza B could be announced in April or May, rather than in February or March as now.
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Affiliation(s)
- Guozhong He
- Institute of Health, Kunming Medical University, Kunming, 650031 China
| | - Pengfei Yang
- Huai’an Center for Disease Control and Prevention, Huai’an, 223005 China
| | - Qingli Yan
- Huai’an Center for Disease Control and Prevention, Huai’an, 223005 China
| | - Chenglong Xiong
- Department of Public Health Microbiology, School of Public Health, Fudan University, Shanghai, 200032 China
- School of Public Health, Fudan University, Key Laboratory of Public Health Safety, Ministry of Education, Shanghai, 200032 China
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Liu B, Wu W, Liu Z, Wang H, He J, Xiong C. P4363The predictive capacity of two- and three-dimensional echocardiography detected right ventricular strain in disease severity of pre-capillary pulmonary hypertension. Eur Heart J 2019. [DOI: 10.1093/eurheartj/ehz745.0768] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Background
Pulmonary hypertension (PH) patients have poor prognosis due to progressive right ventricular (RV) dysfunction. As a low-cost and non-invasive tool, echocardiography is by far the most widely used technique to investigate the RV structure and function in PH patients. Recent studies showed that RV longitudinal strain (RVLS) measured by two- or three-dimensional echocardiography (2DE, 3DE) was correlated with RV function parameters and have the potential to predict the prognosis of PH patients. However, few studies have compared the value of 2DE- and 3DE- RVLS to predict disease severity of pre-capillary PH patients. Therefore, our study aims to compare the capacity of RVLS assessed by 3DE and 2DE in predicting disease severity of pre-capillary PH patients.
Methods
We consecutively enrolled 57 patients (18 males and 39 females, 35±13 years) with pre-capillary PH diagnosed by right heart catheterization in our center. Standard transthoracic echocardiography was performed in all participants. 2DE- RVLS were obtained from speckle-tracking analyses using GE EchoPAC version 201; while 3DE- RVLS were analyzed by TomTec 4D RV-Function 2.0. On the basis of the risk assessment strategy of 2015 ESC Guidelines for the diagnosis and treatment of pulmonary hypertension, all the participants were classified into low risk or intermediate-high risk groups. Linear regression analyses were performed to evaluate the correlations between RVLS and peak oxygen consumption (PVO2). In addition, receive operating characteristic curves (ROC) were used to compare the predictive values of 2DE- and 3DE-RVLS and identify the optimal cut points for the detection of low risk based on the risk assessment strategy of 2015 ESC Guidelines.
Results
Linear regression analyses showed a significant correlation between PVO2 and 2DE- RVLS (r=−0.484, P<0.001), while a relatively weaker correlation was observed between PVO2 and 3DE- RVLS (r=−0.299, P=0.024). ROC curve showed 2DE-RVEF had a better capacity to classify pre-capillary PH patients into low or intermediate-high risk groups (2DE- vs 3DE-: AUC=0.78, P=0.003 vs AUC=0.69, P=0.044). Optimal cut-offs found 2DE-RVEF <−13.85% had a 73.3% sensibility and 75.0% specificity to predict low risk.
Conclusions
Both two- and three-dimensional echocardiography detected RVLS had the potential to evaluate disease severity of pre-capillary PH patients, but the former may have a better predictive capacity.
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Affiliation(s)
- B Liu
- Fuwai Hospital- Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - W Wu
- Fuwai Hospital- Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Z Liu
- Fuwai Hospital- Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - H Wang
- Fuwai Hospital- Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - J He
- Fuwai Hospital- Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - C Xiong
- Fuwai Hospital- Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
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Zhao P, Sun L, Xiong J, Wang C, Chen L, Yang P, Yu H, Yan Q, Cheng Y, Jiang L, Chen Y, Zhao G, Jiang Q, Xiong C. Semiaquatic mammals might be intermediate hosts to spread avian influenza viruses from avian to human. Sci Rep 2019; 9:11641. [PMID: 31406229 PMCID: PMC6690891 DOI: 10.1038/s41598-019-48255-5] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/18/2019] [Accepted: 07/30/2019] [Indexed: 12/29/2022] Open
Abstract
Avian influenza A viruses (AIVs) can occasionally transmit to mammals and lead to the development of human pandemic. A species of mammal is considered as a mixing vessel in the process of host adaptation. So far, pigs are considered as a plausible intermediate host for the generation of human pandemic strains, and are labelled ‘mixing vessels’. In this study, through the analysis of two professional databases, the Influenza Virus Resource of NCBI and the Global Initiative on Sharing Avian Influenza Data (GISAID), we found that the species of mink (Neovison vison) can be infected by more subtypes of influenza A viruses with considerably higher α-diversity related indices. It suggested that the semiaquatic mammals (riverside mammals), rather than pigs, might be the intermediate host to spread AIVs and serve as a potential mixing vessel for the interspecies transmission among birds, mammals and human. In epidemic areas, minks, possibly some other semiaquatic mammals as well, could be an important sentinel species for influenza surveillance and early warning.
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Affiliation(s)
- Ping Zhao
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai, China.,School of Public Health, Fudan University, Key Laboratory of Public Health Safety, Ministry of Education, Shanghai, China
| | - Lingsha Sun
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai, China.,School of Public Health, Fudan University, Key Laboratory of Public Health Safety, Ministry of Education, Shanghai, China
| | - Jiasheng Xiong
- College of Marine Science, Shandong University, Weihai, China
| | - Chuan Wang
- The First Affiliated Hospital of Dalian Medical University, Dalian, China
| | - Liang Chen
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Pengfei Yang
- Huai'an Center for Disease Control and Prevention, Huai'an, China
| | - Hao Yu
- Hongze Center for Disease Control and Prevention, Hongze, China
| | - Qingli Yan
- Huai'an Center for Disease Control and Prevention, Huai'an, China
| | - Yan Cheng
- Hongze Center for Disease Control and Prevention, Hongze, China
| | - Lufang Jiang
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai, China.,School of Public Health, Fudan University, Key Laboratory of Public Health Safety, Ministry of Education, Shanghai, China
| | - Yue Chen
- School of Epidemiology and Public Health, Faculty of Medicine, University of Ottawa, Ottawa, Canada
| | - Genming Zhao
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai, China.,School of Public Health, Fudan University, Key Laboratory of Public Health Safety, Ministry of Education, Shanghai, China
| | - Qingwu Jiang
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai, China.,School of Public Health, Fudan University, Key Laboratory of Public Health Safety, Ministry of Education, Shanghai, China
| | - Chenglong Xiong
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai, China. .,School of Public Health, Fudan University, Key Laboratory of Public Health Safety, Ministry of Education, Shanghai, China.
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Xiao W, Gong C, Liu X, Liu Y, Peng S, Luo D, Wang R, Li T, Zhao J, Xiong C, Liang S, Xu H. Association of P2X7R gene with serum lipid profiles in Chinese postmenopausal women with osteoporosis. Climacteric 2019; 22:498-506. [DOI: 10.1080/13697137.2019.1604654] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Affiliation(s)
- W. Xiao
- Department of Pathology, Jiangxi Medical College of Nanchang University, Nanchang, Jiangxi, China
| | - C. Gong
- Department of Science and Education, Chest Hospital of Jiangxi Province, Nanchang, Jiangxi, China
| | - X. Liu
- Clinical Medical College, JiangXi Medical College of Nanchang University, Nanchang, Jiangxi, China
| | - Y. Liu
- Department of Physiology, JiangXi Medical College of Nanchang University, Nanchang, Jiangxi, China
| | - S. Peng
- Basic Medical College, JiangXi Medical College of Nanchang University, Nanchang, Jiangxi, China
| | - D. Luo
- Basic Medical College, JiangXi Medical College of Nanchang University, Nanchang, Jiangxi, China
| | - R. Wang
- Department of Physiology, JiangXi Medical College of Nanchang University, Nanchang, Jiangxi, China
| | - T. Li
- Clinical Medical College, JiangXi Medical College of Nanchang University, Nanchang, Jiangxi, China
| | - J. Zhao
- Clinical Medical College, JiangXi Medical College of Nanchang University, Nanchang, Jiangxi, China
| | - C. Xiong
- Department of Nursing, The Second Affliated Hospital of Nanchang University, Nanchang, Jiangxi, China
| | - S. Liang
- Department of Physiology, JiangXi Medical College of Nanchang University, Nanchang, Jiangxi, China
| | - H. Xu
- Department of Physiology, JiangXi Medical College of Nanchang University, Nanchang, Jiangxi, China
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Xiong C, Zhao T, Ren Y, Jiang H, Zhou X. Mathematical modeling of the charging process of Li-S batteries by incorporating the size-dependent Li2S dissolution. Electrochim Acta 2019. [DOI: 10.1016/j.electacta.2018.11.159] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Zhang Z, Han H, Rong Y, Zhu K, Zhu Z, Tang Z, Xiong C, Tao J. Hypoxia potentiates gemcitabine-induced stemness in pancreatic cancer cells through AKT/Notch1 signaling. J Exp Clin Cancer Res 2018; 37:291. [PMID: 30486896 PMCID: PMC6263055 DOI: 10.1186/s13046-018-0972-3] [Citation(s) in RCA: 54] [Impact Index Per Article: 9.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 07/31/2018] [Accepted: 11/19/2018] [Indexed: 12/27/2022]
Abstract
Background Profound chemoresistance remains an intractable obstacle in pancreatic cancer treatment. Pancreatic cancer stem cells (CSCs) and the ubiquitous hypoxic niche have been proposed to account for drug resistance. However, the mechanism involved requires further exploration. This study investigated whether the hypoxic niche enhances gemcitabine-induced stemness and acquired resistance in pancreatic cancer cells by activating the AKT/Notch1 signaling cascade. The therapeutic effects of blockading this signaling cascade on gemcitabine-enriched CSCs were also investigated. Methods The expression levels of CSC-associated markers Bmi1 and Sox2 as well as those of proteins involved in AKT/Notch1 signaling were measured by Western blot analysis. The expression level of the pancreatic CSC marker CD24 was measured by flow cytometry. Change in gemcitabine sensitivity was evaluated by the MTT assay. The ability of sphere formation was tested by the sphere-forming assay in stem cell medium. The ability of migration and invasion was detected by the transwell migration/invasion assay. A mouse xenograft model of pancreatic cancer was established to determine the effect of Notch1 inhibition on the killing effect of gemcitabine in vivo. The ability of metastasis was investigated by an in vivo lung metastasis assay. Results Gemcitabine promoted pancreatic cancer cell stemness and associated malignant phenotypes such as enhanced migration, invasion, metastasis, and chemoresistance. The AKT/Notch1 signaling cascade was activated after gemcitabine treatment and mediated this process. Blockading this pathway enhanced the killing effect of gemcitabine in vivo. However, supplementation with hypoxia treatment synergistically enhanced the AKT/Notch1 signaling pathway and collaboratively promoted gemcitabine-induced stemness. Conclusions These findings demonstrate a novel mechanism of acquired gemcitabine resistance in pancreatic cancer cells through induction of stemness, which was mediated by the activation of AKT/Notch1 signaling and synergistically aggravated by the ubiquitous hypoxic niche. Our results might provide new insights for identifying potential targets for reversing chemoresistance in patients with pancreatic cancer. Electronic supplementary material The online version of this article (10.1186/s13046-018-0972-3) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- Zhengle Zhang
- Department of Pancreatic Surgery, Renmin Hospital, Wuhan University, 238 Jiefang Road, Wuhan, 430060, Hubei Province, China
| | - Han Han
- Department of Dermatology, Central Hospital of Wuhan, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, 430014, Hubei Province, China
| | - Yuping Rong
- Department of Pancreatic Surgery, Renmin Hospital, Wuhan University, 238 Jiefang Road, Wuhan, 430060, Hubei Province, China
| | - Kongfan Zhu
- Department of Pancreatic Surgery, Renmin Hospital, Wuhan University, 238 Jiefang Road, Wuhan, 430060, Hubei Province, China
| | - Zhongchao Zhu
- Department of Pancreatic Surgery, Renmin Hospital, Wuhan University, 238 Jiefang Road, Wuhan, 430060, Hubei Province, China
| | - Zhigang Tang
- Department of Pancreatic Surgery, Renmin Hospital, Wuhan University, 238 Jiefang Road, Wuhan, 430060, Hubei Province, China
| | - Chenglong Xiong
- Department of Pancreatic Surgery, Renmin Hospital, Wuhan University, 238 Jiefang Road, Wuhan, 430060, Hubei Province, China
| | - Jing Tao
- Department of Pancreatic Surgery, Renmin Hospital, Wuhan University, 238 Jiefang Road, Wuhan, 430060, Hubei Province, China.
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Chen S, Meng Y, Shen Y, Ning X, Xiong C, Lin Z, Zheng Q, Zheng Z, Yin P, Huang H, Yao M. Chemotherapy May Not be Necessary in Stage II Nasopharyngeal Carcinoma Treated with Intensity-Modulated Radiation Therapy. Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.06.313] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
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Gao Q, Wang F, Lv X, Cao H, Zhou J, Su F, Xiong C, Leng P. Comparison of the human-baited double net trap with the human landing catch for Aedes albopictus monitoring in Shanghai, China. Parasit Vectors 2018; 11:483. [PMID: 30153868 PMCID: PMC6114860 DOI: 10.1186/s13071-018-3053-8] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [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: 04/11/2018] [Accepted: 08/07/2018] [Indexed: 12/05/2022] Open
Abstract
Background Human landing catch (HLC) is the most efficient method for Aedes monitoring, but it is not ethical due to its high risk of human exposure to pathogens. We designed trials to assess the performance of an alternative human-baited double net trap (HDN) for field Aedes albopictus monitoring compared with the standard HLC. Methods Outdoor HDN and HLC catches were conducted simultaneously at 15 field sites on two sunny days in mid-July and August. The tests were performed 3 h apart: an early morning period (7:30–8:30 h), a pre-sunset period (16:30–17:30 h) and a post-sunset period (18:30–19:30 h). A total of 90 comparisons were made between the two methods. Field comparisons were designed to minimize half-hour bias and human-bait attraction bias. Results Two mosquito species were collected by HDN and HLC, with the predominated species being Ae. albopictus (HDN: n = 1325, 97.35% of total; HLC: n = 531, 92.51% of total). A small proportion were adults of the Culex pipiens complex (HDN: n = 36, 2.65% of total; HLC: n = 43, 7.49% of total). Although the mean Ae. albopictus catch per hour of HLC was significantly higher than HDN (14.72 vs 5.90 per h, t(178) = 3.151, P = 0.003), there were significant positive spatial and temporal correlations between HLC and HDN for Ae. albopictus sampling among different sites and hours (r(90) = 0.785, P < 0.001; r(90) = 0.785, P < 0.001). Both methods proved that Ae. albopictus was most active during the hours before sunset and least active after sunset. No significant variation was observed in Ae. albopictus catch size of HDN between groups of more attractive and less attractive humans (3.38 vs 2.51 per 30 min, t(88) = 1.283, P = 0.201). Conclusions With moderate sampling efficiency, significantly positive spatial correlation with HLC, and less human-bait attraction bias, HDN appears to be a safer alternative to HLC for Ae. albopictus monitoring in Shanghai. With mosquito activity peaking in the pre-sunset hours, Ae. albopictus catches of HDN should be performed in the hours before dark. The trap design could be improved to make it more portable and easier for field operation.
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Affiliation(s)
- Qiang Gao
- Department of Vector & Parasite Control, Huangpu Center for Disease Control & Prevention, Shanghai, 200023, People's Republic of China
| | - Fei Wang
- Department of Vector & Parasite Control, Hongkou Center for Disease Control & Prevention, Shanghai, 201620, People's Republic of China
| | - Xihong Lv
- Department of Vector & Parasite Control, Songjiang Center for Disease Control & Prevention, Shanghai, 200082, People's Republic of China
| | - Hui Cao
- Department of Vector & Parasite Control, Huangpu Center for Disease Control & Prevention, Shanghai, 200023, People's Republic of China
| | - Jianjun Zhou
- Department of Vector & Parasite Control, Huangpu Center for Disease Control & Prevention, Shanghai, 200023, People's Republic of China
| | - Fei Su
- Department of Vector & Parasite Control, Huangpu Center for Disease Control & Prevention, Shanghai, 200023, People's Republic of China
| | - Chenglong Xiong
- Department of Medical Microbiology, School of Public Health, Fudan University, Shanghai, 200032, People's Republic of China.
| | - Peien Leng
- Department of Vector & Parasite Control, Shanghai Municipal Center for Disease Control & Prevention, Shanghai, 200336, People's Republic of China.
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Luo J, Weng H, Morris JC, Xiong C. Minimizing the Sample Sizes of Clinical Trials on Preclinical and Early Symptomatic Stage of Alzheimer Disease. J Prev Alzheimers Dis 2018; 5:110-119. [PMID: 29616704 DOI: 10.14283/jpad.2018.16] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Abstract
BACKGROUND Clinical trials of investigational drugs for Alzheimer disease (AD) increasingly focus on the prodromal (symptomatic) stage of the illness and now its preclinical (asymptomatic) stage. Sensitive and specific cognitive and functional endpoints are needed to track subtle cognitive and functional changes in the early and preclinical stages to minimize sample sizes in these trials. OBJECTIVES To identify informative items in a standard clinical assessment protocol and a psychometric battery that are predictive of onset of dementia symptom. DESIGN Longitudinal retrospective study. SETTING Washington University (WU) Knight Alzheimer Disease Research Center (ADRC). PARTICIPANTS A total of 735 individuals at least 65 years old and cognitively normal at baseline from a longitudinal clinical cohort at the WU Knight ADRC. MEASUREMENTS The annual clinical assessment included a wide spectrum of functional and cognitive domains; a comprehensive psychometric battery was completed about 2 weeks after the clinical evaluation. Psychometricians are blinded to the results of the clinical evaluation and to the prior performance of the participants on the psychometric tests. RESULTS The mean age at baseline of the 735 participants was 74.30 and 62.31% were female. 240 individuals developed prodromal dementia symptoms (consistent with mild cognitive impairment due to AD and with very mild AD dementia) during longitudinal follow-up (mean follow-up=6.79 years). Among a total of 562 items in the clinical and cognitive assessments under analysis, 292 (52%) were identified as informative because their longitudinal changes were predictive of symptomatic onset. When these items were used to form the functional and cognitive composites, the longitudinal rates of changes were free of a learning effect and captured subtle longitudinal progression prior to symptomatic onset. The rates of change were much greater right after the symptomatic onset than those from the functional and cognitive composites formed using non-informative items. Although the sample sizes for prevention trials (prior to symptomatic onset) using the informative items still yield large numbers, the sample sizes for early treatment trial (after symptomatic onset) was much smaller than those derived from all the items or from the non-informative items alone. CONCLUSIONS The antecedent longitudinal changes in nearly half of the items in a clinical assessment protocol and a comprehensive cognitive battery did not show statistically significant ability to predict the dementia symptom onset, and hence may be non-informative to track the preclinical functional and cognitive progression of AD. The remaining items, on the other hand, captured some of the preclinical changes prior to the symptom onset, but performed much better right after the symptom onset. Currently ongoing prevention trials on preclinical AD of elderly individuals may need to re-assess the sample sizes and statistical power.
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Affiliation(s)
- J Luo
- Chengjie Xiong, Division of Biostatistics, Campus Box 8067, 4523 Clayton Ave., St. Louis, MO, 63110-1093, Phone: 314-362-3635; Fax: 314-362-2693,
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Xiong C, Zhang X. [Progress of clinical correlation research on migraine and glaucoma]. Zhonghua Yan Ke Za Zhi 2018. [PMID: 29518882 DOI: 10.3760/cma.j.issn.0412-4081.2018.03.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Migraine is a common primary headache disorder. The estimated annual prevalence rate of migraine in China is 9.3%. Migraine is typically involved with a series of ocular symptoms including glaucoma, visual performance tests relevant to glaucoma exhibited correlation between glaucoma and migraine. Even though migraine patients exhibit no glaucoma-related signs during intermissions of migraine attacks, the results of visual function tests (visual field, electrophysiology, ocular imaging) relevant to glaucoma still indicate abnormalities. It is fairly typical that most of the patients may neglect their ocular problems when migraine breaks out. Epidemiological data suggests an increasing prevalence of migraine patients with glaucoma, particularly normal tension glaucoma. This paper reviews and discusses the effect of migraine on the clinical assessment and diagnosis of glaucoma. (Chin J Ophthalmol, 2018, 54: 224-228).
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Affiliation(s)
- C Xiong
- Affiliated Eye Hospital of Nanchang University, Jiangxi Research Institute of Ophthalmology & Visual Sciences, Jiangxi Provincial Key Laboratory for Ophthalmology, Nanchang 330006, China
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40
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Sun L, Ward MP, Li R, Xia C, Lynn H, Hu Y, Xiong C, Zhang Z. Global spatial risk pattern of highly pathogenic avian influenza H5N1 virus in wild birds: A knowledge-fusion based approach. Prev Vet Med 2018; 152:32-39. [PMID: 29559103 DOI: 10.1016/j.prevetmed.2018.02.008] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2017] [Revised: 01/18/2018] [Accepted: 02/09/2018] [Indexed: 11/18/2022]
Abstract
Highly pathogenic avian influenza (HPAI) H5N1 viruses have continuously circulated throughout much of the world since 2003, resulting in huge economic losses and major public health problems. Wild birds have played an important role in the spread of H5N1 HPAI. To understand its spatial distribution, H5N1 HPAI have been studied by many disciplines from different perspectives, but only one kind of disciplinary knowledge was involved, which has provided limited progress in understanding. Combining risk information from different disciplines based on knowledge fusion can provide more accurate and detailed information. In this study, local k function, phylogenetic tree analysis, and logistic spatial autoregressive models were used to explore the global spatial pattern of H5N1 HPAI based on outbreak data in wild birds, genetic sequences, and risk factors, respectively. On this basis, Dempster-Shafer (D-S) evidence theory was further applied to study the spatial distribution of H5N1 HPAI. We found D-S evidence theory was more robust and reliable than the other three methods, providing technical and methodological support for application to the research of other diseases. The shortest distance to wild bird migration routes, roads and railways, elevation, the normalized difference vegetation index (NDVI), land use and land cover (LULC) and infant mortality rates (IMR) were significantly associated with the occurrence of H5N1 HPAI. The high-risk areas were mainly located in Northern and Central Europe, the eastern Mediterranean, and East and Southeast Asia. High-risk clusters were closely related to the social, economic and ecological environment of the region. Locations where the potential transmission risk remains high should be prioritized for control efforts.
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Affiliation(s)
- Liqian Sun
- Department of Epidemiology and Biostatistics, School of Public Health, Fudan University, Shanghai 200032, China; Department of Hospital Infection Management, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450000, Henan, China; Key Laboratory of Public Health Safety, Ministry of Education, Shanghai 200032, China; Collaborative Innovation Center of Social Risks Governance in Health, School of Public Health, Fudan University, China
| | - Michael P Ward
- Sydney School of Veterinary Science, The University of Sydney, NSW 2570, Australia
| | - Rui Li
- Department of Epidemiology and Biostatistics, School of Public Health, Fudan University, Shanghai 200032, China; Key Laboratory of Public Health Safety, Ministry of Education, Shanghai 200032, China; Collaborative Innovation Center of Social Risks Governance in Health, School of Public Health, Fudan University, China
| | - Congcong Xia
- Department of Epidemiology and Biostatistics, School of Public Health, Fudan University, Shanghai 200032, China; Key Laboratory of Public Health Safety, Ministry of Education, Shanghai 200032, China; Collaborative Innovation Center of Social Risks Governance in Health, School of Public Health, Fudan University, China
| | - Henry Lynn
- Department of Epidemiology and Biostatistics, School of Public Health, Fudan University, Shanghai 200032, China; Key Laboratory of Public Health Safety, Ministry of Education, Shanghai 200032, China; Collaborative Innovation Center of Social Risks Governance in Health, School of Public Health, Fudan University, China
| | - Yi Hu
- Department of Epidemiology and Biostatistics, School of Public Health, Fudan University, Shanghai 200032, China; Key Laboratory of Public Health Safety, Ministry of Education, Shanghai 200032, China; Collaborative Innovation Center of Social Risks Governance in Health, School of Public Health, Fudan University, China
| | - Chenglong Xiong
- Department of Epidemiology and Biostatistics, School of Public Health, Fudan University, Shanghai 200032, China; Key Laboratory of Public Health Safety, Ministry of Education, Shanghai 200032, China; Collaborative Innovation Center of Social Risks Governance in Health, School of Public Health, Fudan University, China; Department of Public Health Microbiology, School of Public Health, Fudan University, Shanghai 200032, China
| | - Zhijie Zhang
- Department of Epidemiology and Biostatistics, School of Public Health, Fudan University, Shanghai 200032, China; Key Laboratory of Public Health Safety, Ministry of Education, Shanghai 200032, China; Collaborative Innovation Center of Social Risks Governance in Health, School of Public Health, Fudan University, China.
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41
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Zhang X, Lee YH, Bell BA, Leong PHW, Rudolph T, Eggleton BJ, Xiong C. Indistinguishable heralded single photon generation via relative temporal multiplexing of two sources. Opt Express 2017; 25:26067-26075. [PMID: 29041268 DOI: 10.1364/oe.25.026067] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/08/2017] [Accepted: 10/04/2017] [Indexed: 06/07/2023]
Abstract
Generating N single photons simultaneously is a formidable challenge due to the lack of deterministic single photon sources. Recent work [New J. Phys. 19, 063013 (2017] has proposed a relative multiplexing scheme that can enhance the N single photons probability with a minimum of active switching resources. We experimentally demonstrate relative temporal multiplexing on two photon sources with a 90% additional enhancement over the standard temporal multiplexing scheme demonstrated previously. 88 ± 11% visibility of Hong-Ou-Mandel quantum interference verifies the indistinguishability of the heralded single photons after the synchronization. This proof-of-principle demonstration points out the potential significance of the relative multiplexing scheme for large-scale photonic quantum information processing.
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42
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Gill DM, Xiong C, Rosenberg JC, Pepeljugoski P, Orcutt JS, Green WMJ. Modulator figure of merit for short reach data links. Opt Express 2017; 25:24326-24339. [PMID: 29041377 DOI: 10.1364/oe.25.024326] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/03/2017] [Accepted: 09/15/2017] [Indexed: 06/07/2023]
Abstract
The traditional Mach-Zehnder modulator (MZM) figure of merit (FOM) has been defined as (Vπ2)/υ3dBe, and works effectively for LiNbO3 long haul modulators. However, for plasma dispersion based electro-optic modulators, or any modulator that has an inherent relationship between its bandwidth, required drive voltage, and optical insertion loss/gain, this FOM is inappropriate. This is particularly true for short reach links with no optical amplification. In the following, we propose a new modulator FOM (M-FOM) based on device metrics that are essential for short-reach links, such as the peak-to-peak drive voltage, modulator rise-fall time, and relative optical modulation amplitude. Link sensitivity measurements from two MZMs that have different bandwidths and optical losses are compared using our M-FOM to demonstrate its utility. Furthermore, we present a novel application protocol of our M-FOM to provide deeper insight into the relative system impact that modulator performance has on data links with no optical amplification, by taking the ratio of M-FOMs from two modulators driven with the same radio frequency drive power.
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43
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Li R, Wang H, Shi Q, Wang N, Zhang Z, Xiong C, Liu J, Chen Y, Jiang L, Jiang Q. Effects of oral florfenicol and azithromycin on gut microbiota and adipogenesis in mice. PLoS One 2017; 12:e0181690. [PMID: 28742883 PMCID: PMC5526540 DOI: 10.1371/journal.pone.0181690] [Citation(s) in RCA: 37] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/21/2017] [Accepted: 07/04/2017] [Indexed: 12/11/2022] Open
Abstract
Certain antibiotics detected in urine are associated with childhood obesity. In the current experimental study, we investigated two representative antibiotics detected in urine, florfenicol and azithromycin, for their early effects on adipogenesis, gut microbiota, short-chain fatty acids (SCFAs), and bile acids in mice. Thirty C57BL/6 mice aged four weeks were randomly divided into three groups (florfenicol, azithromycin and control). The two experimental groups were administered florfenicol or azithromycin at 5 mg/kg/day for four weeks. Body weight was measured weekly. The composition of the gut microbiota, body fat, SCFAs, and bile acids in colon contents were measured at the end of the experiment. The composition of the gut microbiota was determined by sequencing the bacterial 16S rRNA gene. The concentration of SCFAs and bile acids was determined using gas chromatography and liquid chromatography coupled to tandem mass spectrometry, respectively. The composition of the gut microbiota indicated that the two antibiotics altered the gut microbiota composition and decreased its richness and diversity. At the phylum level, the ratio of Firmicutes/Bacteroidetes increased significantly in the antibiotic groups. At the genus level, there were declines in Christensenella, Gordonibacter and Anaerotruncus in the florfenicol group, in Lactobacillus in the azithromycin group, and in Alistipes, Desulfovibrio, Parasutterella and Rikenella in both the antibiotic groups. The decrease in Rikenella in the azithromycin group was particularly noticeable. The concentration of SCFAs and secondary bile acids decreased in the colon, but the concentration of primary bile acids increased. These findings indicated that florfenicol and azithromycin increased adipogenesis and altered gut microbiota composition, SCFA production, and bile acid metabolism, suggesting that exposure to antibiotics might be one risk factor for childhood obesity. More studies are needed to investigate the specific mechanisms.
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Affiliation(s)
- Rui Li
- Key Laboratory of Public Health Safety of Ministry of Education, School of Public Health, Fudan University, Shanghai, China
| | - Hexing Wang
- Key Laboratory of Public Health Safety of Ministry of Education, School of Public Health, Fudan University, Shanghai, China
| | - Qingfeng Shi
- Key Laboratory of Public Health Safety of Ministry of Education, School of Public Health, Fudan University, Shanghai, China
| | - Na Wang
- Key Laboratory of Public Health Safety of Ministry of Education, School of Public Health, Fudan University, Shanghai, China
| | - Zhijie Zhang
- Key Laboratory of Public Health Safety of Ministry of Education, School of Public Health, Fudan University, Shanghai, China
| | - Chenglong Xiong
- Key Laboratory of Public Health Safety of Ministry of Education, School of Public Health, Fudan University, Shanghai, China
| | - Jianxiang Liu
- Key Laboratory of Public Health Safety of Ministry of Education, School of Public Health, Fudan University, Shanghai, China
| | - Yue Chen
- School of Epidemiology and Public Health, Faculty of Medicine, University of Ottawa, Ottawa, Ontario, Canada
| | - Lufang Jiang
- Key Laboratory of Public Health Safety of Ministry of Education, School of Public Health, Fudan University, Shanghai, China
- * E-mail:
| | - Qingwu Jiang
- Key Laboratory of Public Health Safety of Ministry of Education, School of Public Health, Fudan University, Shanghai, China
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Hu Y, Li S, Xia C, Chen Y, Lynn H, Zhang T, Xiong C, Chen G, He Z, Zhang Z. Assessment of the national schistosomiasis control program in a typical region along the Yangtze River, China. Int J Parasitol 2016; 47:21-29. [PMID: 27866904 DOI: 10.1016/j.ijpara.2016.09.003] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [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: 07/19/2016] [Revised: 09/13/2016] [Accepted: 09/22/2016] [Indexed: 11/19/2022]
Abstract
Schistosomiasis remains a major public health problem in eastern China, particularly along the Yangtze River Basin. The latest national schistosomiasis control program (NSCP) was implemented in 2005 with the main goal of reducing the rate of infection to less than 5% by 2008 and 1% by 2015. To assess the progress, we applied a Bayesian spatio-temporal model to describe dynamics of schistosomiasis in Guichi, Anhui Province, China, using annual parasitological and environmental data collected within 41 sample villages for the period 2005-2011. Predictive maps of schistosomiasis showed that the disease prevalence remains constant and low. Results of uncertainty analysis, in the form of probability contour maps (PCMs), indicated that the first goal of "infection rate less than 5% by 2008" was fully achieved in the study area. More longitudinal data for schistosomiasis are needed for the assessment of the second goal of "infection rate less than 1% by 2015". Compared with the traditional way of mapping uncertainty (e.g., variance or mean-square error), our PCMs provide more realistic information for schistosomiasis control.
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Affiliation(s)
- Yi Hu
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai, China; Key Laboratory of Public Health Safety, Ministry of Education, Shanghai, China; Laboratory for Spatial Analysis and Modeling, School of Public Health, Fudan University, Shanghai, China; Collaborative Innovation Center of Social Risks Governance in Health, School of Public Health, Fudan University, Shanghai, China
| | - Si Li
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai, China; Key Laboratory of Public Health Safety, Ministry of Education, Shanghai, China; Laboratory for Spatial Analysis and Modeling, School of Public Health, Fudan University, Shanghai, China; Collaborative Innovation Center of Social Risks Governance in Health, School of Public Health, Fudan University, Shanghai, China
| | - Congcong Xia
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai, China; Key Laboratory of Public Health Safety, Ministry of Education, Shanghai, China; Laboratory for Spatial Analysis and Modeling, School of Public Health, Fudan University, Shanghai, China; Collaborative Innovation Center of Social Risks Governance in Health, School of Public Health, Fudan University, Shanghai, China
| | - Yue Chen
- School of Epidemiology, Pubic Health and Preventive Medicine, Faculty of Medicine, University of Ottawa, 451 Smyth Rd, Ottawa, Ontario, Canada
| | - Henry Lynn
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai, China; Key Laboratory of Public Health Safety, Ministry of Education, Shanghai, China; Laboratory for Spatial Analysis and Modeling, School of Public Health, Fudan University, Shanghai, China; Collaborative Innovation Center of Social Risks Governance in Health, School of Public Health, Fudan University, Shanghai, China
| | - Tiejun Zhang
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai, China; Key Laboratory of Public Health Safety, Ministry of Education, Shanghai, China; Collaborative Innovation Center of Social Risks Governance in Health, School of Public Health, Fudan University, Shanghai, China
| | - Chenglong Xiong
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai, China; Key Laboratory of Public Health Safety, Ministry of Education, Shanghai, China; Collaborative Innovation Center of Social Risks Governance in Health, School of Public Health, Fudan University, Shanghai, China
| | - Gengxin Chen
- Schistosomiasis Station of Prevention and Control in Guichi Distirct, Anhui Province, China
| | - Zonggui He
- Schistosomiasis Station of Prevention and Control in Guichi Distirct, Anhui Province, China
| | - Zhijie Zhang
- Department of Epidemiology, School of Public Health, Fudan University, Shanghai, China; Key Laboratory of Public Health Safety, Ministry of Education, Shanghai, China; Laboratory for Spatial Analysis and Modeling, School of Public Health, Fudan University, Shanghai, China; Collaborative Innovation Center of Social Risks Governance in Health, School of Public Health, Fudan University, Shanghai, China.
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Gao Q, Xiong C, Su F, Cao H, Zhou J, Jiang Q. Structure, Spatial and Temporal Distribution of the Culex pipiens Complex in Shanghai, China. Int J Environ Res Public Health 2016; 13:ijerph13111150. [PMID: 27869687 PMCID: PMC5129360 DOI: 10.3390/ijerph13111150] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 09/10/2016] [Revised: 11/10/2016] [Accepted: 11/14/2016] [Indexed: 11/16/2022]
Abstract
Background: Culex pipiens molestus was first reported in Shanghai in 2010. The population structures and seasonal distributions of Culex pipiens subspecies C. p. molestus, Culex pipiens pallens, and Culex pipiens quinquefasciatus are not well known. Methods: From late February to November 2013, we conducted daily field surveillance of mosquitoes at eight sites at two green lands and three residential areas in downtown Shanghai. Morphological comparison and DV/D ratios (DV/D is an indicator of mosquito taxonomy) were used to identify adult mosquitoes. Results: The distribution curves of the Culex pipiens complex members indicated seasonal fluctuations. The temperature range of 20–25 °C was the most suitable for adult activity. Micro-environmental factors may differentiate the complex population structures. Hybridization between C. p. pallens and C. p. quinquefasciatus was common and neither “DV/D = 0.40” nor “DV/D = 0.50” can distinguish these subspecies and their hybrids. Conclusion: the population structure of the Culex pipiens complex is complex and characterized by significant hybridization. Measures other than DV/D ratios are needed for the discrimination of subspecies. The C. p. molestus invasion might result in the transmission of novel vector-borne diseases in Shanghai.
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Affiliation(s)
- Qiang Gao
- Department of Public Health Microbiology, School of Public Health, Fudan University, Shanghai 232000, China.
- Key Laboratory of Public Health Safety, Ministry of Education, Fudan University, Shanghai 232000, China.
- Department of Vectors Prevention, Center for Disease Control & Prevention, Huangpu District, Shanghai 232000, China.
| | - Chenglong Xiong
- Department of Public Health Microbiology, School of Public Health, Fudan University, Shanghai 232000, China.
- Key Laboratory of Public Health Safety, Ministry of Education, Fudan University, Shanghai 232000, China.
| | - Fei Su
- Department of Vectors Prevention, Center for Disease Control & Prevention, Huangpu District, Shanghai 232000, China.
| | - Hui Cao
- Department of Vectors Prevention, Center for Disease Control & Prevention, Huangpu District, Shanghai 232000, China.
| | - Jianjun Zhou
- Department of Vectors Prevention, Center for Disease Control & Prevention, Huangpu District, Shanghai 232000, China.
| | - Qingwu Jiang
- Key Laboratory of Public Health Safety, Ministry of Education, Fudan University, Shanghai 232000, China.
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Zhang Z, Li R, Jiang L, Xiong C, Chen Y, Zhao G, Jiang Q. The complexity of human infected AIV H5N6 isolated from China. BMC Infect Dis 2016; 16:600. [PMID: 27782815 PMCID: PMC5078974 DOI: 10.1186/s12879-016-1932-1] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [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: 03/12/2016] [Accepted: 10/14/2016] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Novel avian influenza viruses (AIVs) of H7N9, H10N8, and H5N6 are currently circulating in China's poultry flocks, occasionally infecting human and other mammals. Human infected AIV H5N6 in China during 2014-2015 is believed to be a triple reassortant originated from H6N6 and two clades of H5 viruses. The current report suggests that its reassortment history is more complicated. METHODS Genomes of human infected isolates of AIV H5N6 were searched from the NCBI Influenza Virus Sequence Database and the Global Initiative on Sharing Avian Influenza Data. Sequences shared high identities with each segment of their genomes were obtained through the Basic Local Alignment Search Tool. Alignments were done by mafft-7.037-win32 program; 8 large-scale and then 8 gradually converged phylogenetic trees were constructed by using MEGA5.1/5.2/6.0 Software. RESULTS The events that each segment of the genomes of human infected AIV H5N6 isolates circulated in China had evolved into its current status might have happened before 2013, and so were they then reassorted into the epidemic AIV H5N6. A/Guangzhou/39715/2014(H5N6) and A/Sichuan/26221/2014(H5N6) had their six internal segments (PB2, PB1, PA, NP, NEP, and M) in common, and were reassorted from AIVs H5N1 in the same period and same region as that of HA, while A/Yunnan/0127/2015(H5N6) derived its six internal segments from AIV H9N2 that has been prevalent in Eastern China since 2008. CONCLUSIONS AIV H5N6 isolates established from both human and poultry in China during 2014-2015 were heterogeneous; both AIVs H5N1 and H9N2 were involved in the reassortment of AIV H5N6 in China.
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Affiliation(s)
- Zhijie Zhang
- Department of Epidemiology and Biostatistics, School of Public Health, Fudan University, Shanghai, People's Republic of China.,Key Laboratory of Public Health Safety, Ministry of Education, Fudan University, Shanghai, People's Republic of China
| | - Rui Li
- Department of Epidemiology and Biostatistics, School of Public Health, Fudan University, Shanghai, People's Republic of China.,Key Laboratory of Public Health Safety, Ministry of Education, Fudan University, Shanghai, People's Republic of China
| | - Lufang Jiang
- Key Laboratory of Public Health Safety, Ministry of Education, Fudan University, Shanghai, People's Republic of China.,Department of Public Health Microbiology, School of Public Health, Fudan University, Shanghai, People's Republic of China
| | - Chenglong Xiong
- Key Laboratory of Public Health Safety, Ministry of Education, Fudan University, Shanghai, People's Republic of China. .,Department of Public Health Microbiology, School of Public Health, Fudan University, Shanghai, People's Republic of China. .,, Bldg. 8#, Rd. Dong'an 130, Shanghai, 200032, People's Republic of China.
| | - Yue Chen
- School of Epidemiology, Public Health and Preventive Medicine, Faculty of Medicine, University of Ottawa, Ottawa, ON, Canada
| | - Genming Zhao
- Department of Epidemiology and Biostatistics, School of Public Health, Fudan University, Shanghai, People's Republic of China.,Key Laboratory of Public Health Safety, Ministry of Education, Fudan University, Shanghai, People's Republic of China
| | - Qingwu Jiang
- Key Laboratory of Public Health Safety, Ministry of Education, Fudan University, Shanghai, People's Republic of China
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47
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Hu Y, Ward MP, Xia C, Li R, Sun L, Lynn H, Gao F, Wang Q, Zhang S, Xiong C, Zhang Z, Jiang Q. Monitoring schistosomiasis risk in East China over space and time using a Bayesian hierarchical modeling approach. Sci Rep 2016; 6:24173. [PMID: 27053447 PMCID: PMC4823756 DOI: 10.1038/srep24173] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/06/2015] [Accepted: 03/21/2016] [Indexed: 12/03/2022] Open
Abstract
Schistosomiasis remains a major public health problem and causes substantial economic impact in east China, particularly along the Yangtze River Basin. Disease forecasting and surveillance can assist in the development and implementation of more effective intervention measures to control disease. In this study, we applied a Bayesian hierarchical spatio-temporal model to describe trends in schistosomiasis risk in Anhui Province, China, using annual parasitological and environmental data for the period 1997–2010. A computationally efficient approach–Integrated Nested Laplace Approximation–was used for model inference. A zero-inflated, negative binomial model best described the spatio-temporal dynamics of schistosomiasis risk. It predicted that the disease risk would generally be low and stable except for some specific, local areas during the period 2011–2014. High-risk counties were identified in the forecasting maps: three in which the risk remained high, and two in which risk would become high. The results indicated that schistosomiasis risk has been reduced to consistently low levels throughout much of this region of China; however, some counties were identified in which progress in schistosomiasis control was less than satisfactory. Whilst maintaining overall control, specific interventions in the future should focus on these refractive counties as part of a strategy to eliminate schistosomiasis from this region.
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Affiliation(s)
- Yi Hu
- Department of Epidemiology and Biostatistics, School of Public Health, Fudan University, Shanghai 200032, China.,Key Laboratory of Public Health Safety, Ministry of Education, Shanghai 200032, China.,Laboratory for Spatial Analysis and Modeling, School of Public Health, Fudan University, Shanghai 200032, China.,Collaborative Innovation Center of Social Risks Governance in Health,School of Public Health, Fudan University, Shanghai 200032, China
| | - Michael P Ward
- University of Sydney Faculty of Veterinary Science, NSW 2570, Australia
| | - Congcong Xia
- Department of Epidemiology and Biostatistics, School of Public Health, Fudan University, Shanghai 200032, China.,Key Laboratory of Public Health Safety, Ministry of Education, Shanghai 200032, China.,Laboratory for Spatial Analysis and Modeling, School of Public Health, Fudan University, Shanghai 200032, China
| | - Rui Li
- Department of Epidemiology and Biostatistics, School of Public Health, Fudan University, Shanghai 200032, China.,Key Laboratory of Public Health Safety, Ministry of Education, Shanghai 200032, China.,Laboratory for Spatial Analysis and Modeling, School of Public Health, Fudan University, Shanghai 200032, China
| | - Liqian Sun
- Department of Epidemiology and Biostatistics, School of Public Health, Fudan University, Shanghai 200032, China.,Key Laboratory of Public Health Safety, Ministry of Education, Shanghai 200032, China.,Laboratory for Spatial Analysis and Modeling, School of Public Health, Fudan University, Shanghai 200032, China
| | - Henry Lynn
- Department of Epidemiology and Biostatistics, School of Public Health, Fudan University, Shanghai 200032, China.,Key Laboratory of Public Health Safety, Ministry of Education, Shanghai 200032, China.,Laboratory for Spatial Analysis and Modeling, School of Public Health, Fudan University, Shanghai 200032, China.,Collaborative Innovation Center of Social Risks Governance in Health,School of Public Health, Fudan University, Shanghai 200032, China
| | - Fenghua Gao
- Anhui Institute of Parasitic Diseases, Wuhu, People's Republic of China 230061, China
| | - Qizhi Wang
- Anhui Institute of Parasitic Diseases, Wuhu, People's Republic of China 230061, China
| | - Shiqing Zhang
- Anhui Institute of Parasitic Diseases, Wuhu, People's Republic of China 230061, China
| | - Chenglong Xiong
- Department of Epidemiology and Biostatistics, School of Public Health, Fudan University, Shanghai 200032, China.,Key Laboratory of Public Health Safety, Ministry of Education, Shanghai 200032, China.,Collaborative Innovation Center of Social Risks Governance in Health,School of Public Health, Fudan University, Shanghai 200032, China
| | - Zhijie Zhang
- Department of Epidemiology and Biostatistics, School of Public Health, Fudan University, Shanghai 200032, China.,Key Laboratory of Public Health Safety, Ministry of Education, Shanghai 200032, China.,Laboratory for Spatial Analysis and Modeling, School of Public Health, Fudan University, Shanghai 200032, China.,Collaborative Innovation Center of Social Risks Governance in Health,School of Public Health, Fudan University, Shanghai 200032, China
| | - Qingwu Jiang
- Department of Epidemiology and Biostatistics, School of Public Health, Fudan University, Shanghai 200032, China.,Key Laboratory of Public Health Safety, Ministry of Education, Shanghai 200032, China.,Laboratory for Spatial Analysis and Modeling, School of Public Health, Fudan University, Shanghai 200032, China.,Collaborative Innovation Center of Social Risks Governance in Health,School of Public Health, Fudan University, Shanghai 200032, China
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Chen L, Sun L, Li R, Chen Y, Zhang Z, Xiong C, Zhao G, Jiang Q. Is a highly pathogenic avian influenza virus H5N1 fragment recombined in PB1 the key for the epidemic of the novel AIV H7N9 in China, 2013? Int J Infect Dis 2016; 43:85-89. [PMID: 26778522 DOI: 10.1016/j.ijid.2016.01.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/28/2015] [Revised: 01/04/2016] [Accepted: 01/05/2016] [Indexed: 10/22/2022] Open
Abstract
BACKGROUND A novel avian influenza A H7N9 virus that infects humans was identified in China in 2013. This study is the first to comprehensively investigate the characteristics of genomic recombination, rather than reassortment, which has been the subject of investigation in previously reported studies. METHODS Novel avian influenza virus (AIV) H7N9 genome sequences were obtained from the NCBI Influenza Virus Sequence Database and the Global Initiative on Sharing Avian Influenza Database (GISAID) and a representative isolate was subjected to homogeneity analysis. A phylogenetic tree was constructed. Eight segments of the isolate were analyzed to identify segments with recombination events, the corresponding recombination fragments, and breakpoints. The evolutionary history of the recombined fragments was tracked by constructing phylogenetic trees of the recombination fragments. RESULTS Among the eight segments of the novel AIV H7N9 analyzed, only the PB1 segment showed a marked recombination phenomenon, with 11 recombination events; these included five actual recombination events and six possible misalignment artifact recombination events. The most notable was the recombination of a 291-nucleotide (nt) fragment at the 490-780 nt site that was affiliated to a highly pathogenic avian influenza virus (HPAIV) H5N1 (A/tree sparrow/Thailand/VSMU-16-RBR/2005). The phylogenetic tree of the 291-nt recombination fragment on the PB1 segment showed that the novel AIV H7N9 had a close genetic relationship to H9N2 and H5N1. CONCLUSIONS The novel AIV H7N9 might have reassorted its PB1 segment from H9N2 circulating in China, and this H9N2 PB1 might have been recombined into a highly pathogenic fragment from HPAIV H5N1, which could be the reason for the high fatality rate among patients with AIV H7N9 influenza.
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Affiliation(s)
- Liang Chen
- Department of Public Health Microbiology, School of Public Health, Fudan University, Bldg 8#, Rd. Dong'an 130, Shanghai 200032, People's Republic of China; Key Laboratory of Public Health Safety, Ministry of Education, Shanghai, People's Republic of China
| | - Liqian Sun
- Key Laboratory of Public Health Safety, Ministry of Education, Shanghai, People's Republic of China; Department of Epidemiology and Biostatistics, School of Public Health, Fudan University, Bldg 8#, Rd. Dong'an 130, Shanghai 200032, People's Republic of China; Laboratory for Spatial Analysis and Modeling, School of Public Health, Fudan University, Shanghai, People's Republic of China
| | - Rui Li
- Key Laboratory of Public Health Safety, Ministry of Education, Shanghai, People's Republic of China; Department of Epidemiology and Biostatistics, School of Public Health, Fudan University, Bldg 8#, Rd. Dong'an 130, Shanghai 200032, People's Republic of China; Laboratory for Spatial Analysis and Modeling, School of Public Health, Fudan University, Shanghai, People's Republic of China
| | - Yue Chen
- Department of Epidemiology and Community Medicine, Faculty of Medicine, University of Ottawa, Ontario, Canada
| | - Zhijie Zhang
- Key Laboratory of Public Health Safety, Ministry of Education, Shanghai, People's Republic of China; Department of Epidemiology and Biostatistics, School of Public Health, Fudan University, Bldg 8#, Rd. Dong'an 130, Shanghai 200032, People's Republic of China; Laboratory for Spatial Analysis and Modeling, School of Public Health, Fudan University, Shanghai, People's Republic of China.
| | - Chenglong Xiong
- Department of Public Health Microbiology, School of Public Health, Fudan University, Bldg 8#, Rd. Dong'an 130, Shanghai 200032, People's Republic of China; Key Laboratory of Public Health Safety, Ministry of Education, Shanghai, People's Republic of China.
| | - Genming Zhao
- Key Laboratory of Public Health Safety, Ministry of Education, Shanghai, People's Republic of China; Department of Epidemiology and Biostatistics, School of Public Health, Fudan University, Bldg 8#, Rd. Dong'an 130, Shanghai 200032, People's Republic of China
| | - Qingwu Jiang
- Key Laboratory of Public Health Safety, Ministry of Education, Shanghai, People's Republic of China
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Hu Y, Li R, Ward MP, Chen Y, Lynn H, Wang D, Chen G, He Z, Sun L, Xiong C, Zhang Z, Jiang Q. Human infections and co-infections with helminths in a rural population in Guichi, Anhui Province, China. Geospat Health 2015; 10:374. [PMID: 26618320 DOI: 10.4081/gh.2015.374] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/13/2015] [Revised: 08/31/2015] [Accepted: 08/31/2015] [Indexed: 06/05/2023]
Abstract
Helminth infections are believed to be common in tropical and subtropical countries. A cross-sectional study was carried out in two villages located in Guichi District in Anhui Province, the People's Republic of China, where multiparasitism was investigated using parasitological tests. The data collected were fitted to Bayesian multi-level models to profile risk factors for helminth infections. The prevalence of Schistosoma (S.) japonicum, Ascaris (A.) lumbricoides and Trichuris (T.) trichiura were 0.43% (range: 0-0.87% at the village level), 2.28% (range: 1.69-2.88%), and 0.21% (range: 0-0.42%), respectively. No hookworm infection was found. With regard to multiparasitism, only a 33-year-old female was found to be co-infected with S. japonicum and A. lumbricoides. Multiparasitism was unexpectedly rare in the study area, which contrasts with results from other studies carried out elsewhere in the country. The long-term usage of albendazole for individuals serologically positive for schistosomiasis may be the main reason, but this needs to be confirmed by future studies.
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Affiliation(s)
- Yi Hu
- Department of Epidemiology and Biostatistics, Fudan University, Shanghai; Key Laboratory of Public Health Safety, Ministry of Education, Shanghai; Laboratory for Spatial Analysis and Modeling, Fudan University, Shanghai.
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Gill DM, Green WMJ, Xiong C, Rylyakov A, Schow C, Proesel J, Rosenberg JC, Barwicz T, Khater M, Assefa S, Shank SM, Reinholm C, Kiewra E, Kamlapurkar S, Vlasov YA. Distributed electrode Mach-Zehnder modulator with double-pass phase shifters and integrated inductors. Opt Express 2015; 23:16857-16865. [PMID: 26191697 DOI: 10.1364/oe.23.016857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
A novel high-speed Mach-Zehnder modulator (MZM) fully integrated into a 90 nm CMOS process is presented. The MZM features 'double-pass' optical phase shifter segments, and the first use of integrated inductors in a 'velocity-matched' distributed-electrode configuration.
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