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He X, Zhang X, Wu B, Deng J, Zhang Y, Zhu A, Yuan Y, Lin Y, Chen A, Feng J, Wang X, Wu S, Liu Y, Liu J, Wang Y, Li R, Liang C, Yuan Q, Liang Y, Fang Q, Xi Z, Li W, Liang L, Zhang Z, Tang H, Peng Y, Ke C, Ma X, Cai W, Pan T, Liu B, Deng K, Chen J, Zhao J, Wei X, Chen R, Zhang Y, Zhang H. The receptor binding domain of SARS-CoV-2 Omicron subvariants targets Siglec-9 to decrease its immunogenicity by preventing macrophage phagocytosis. Nat Immunol 2024; 25:622-632. [PMID: 38454157 DOI: 10.1038/s41590-024-01776-2] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/17/2023] [Accepted: 02/01/2024] [Indexed: 03/09/2024]
Abstract
The development of a vaccine specific to severe acute respiratory syndrome coronavirus 2 Omicron has been hampered due to its low immunogenicity. Here, using reverse mutagenesis, we found that a phenylalanine-to-serine mutation at position 375 (F375S) in the spike protein of Omicron to revert it to the sequence found in Delta and other ancestral strains significantly enhanced the immunogenicity of Omicron vaccines. Sequence FAPFFAF at position 371-377 in Omicron spike had a potent inhibitory effect on macrophage uptake of receptor-binding domain (RBD) nanoparticles or spike-pseudovirus particles containing this sequence. Omicron RBD enhanced binding to Siglec-9 on macrophages to impair phagocytosis and antigen presentation and promote immune evasion, which could be abrogated by the F375S mutation. A bivalent F375S Omicron RBD and Delta-RBD nanoparticle vaccine elicited potent and broad nAbs in mice, rabbits and rhesus macaques. Our research suggested that manipulation of the Siglec-9 pathway could be a promising approach to enhance vaccine response.
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Affiliation(s)
- Xin He
- Institute of Human Virology, Department of Pathogen Biology and Biosecurity, and Key Laboratory of Tropical Disease Control of Ministry of Education, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Xiantao Zhang
- Institute of Human Virology, Department of Pathogen Biology and Biosecurity, and Key Laboratory of Tropical Disease Control of Ministry of Education, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Bolin Wu
- Institute of Human Virology, Department of Pathogen Biology and Biosecurity, and Key Laboratory of Tropical Disease Control of Ministry of Education, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Jieyi Deng
- Institute of Human Virology, Department of Pathogen Biology and Biosecurity, and Key Laboratory of Tropical Disease Control of Ministry of Education, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Yongli Zhang
- Institute of Human Virology, Department of Pathogen Biology and Biosecurity, and Key Laboratory of Tropical Disease Control of Ministry of Education, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Airu Zhu
- Guangzhou Laboratory, Bio-island, Guangzhou, China
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China
| | - Yaochang Yuan
- Institute of Human Virology, Department of Pathogen Biology and Biosecurity, and Key Laboratory of Tropical Disease Control of Ministry of Education, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Yingtong Lin
- Institute of Human Virology, Department of Pathogen Biology and Biosecurity, and Key Laboratory of Tropical Disease Control of Ministry of Education, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Achun Chen
- Institute of Human Virology, Department of Pathogen Biology and Biosecurity, and Key Laboratory of Tropical Disease Control of Ministry of Education, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Jinzhu Feng
- Institute of Human Virology, Department of Pathogen Biology and Biosecurity, and Key Laboratory of Tropical Disease Control of Ministry of Education, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Xiumei Wang
- Institute of Human Virology, Department of Pathogen Biology and Biosecurity, and Key Laboratory of Tropical Disease Control of Ministry of Education, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Shijian Wu
- Institute of Human Virology, Department of Pathogen Biology and Biosecurity, and Key Laboratory of Tropical Disease Control of Ministry of Education, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Yingying Liu
- Institute of Human Virology, Department of Pathogen Biology and Biosecurity, and Key Laboratory of Tropical Disease Control of Ministry of Education, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Jie Liu
- Institute of Human Virology, Department of Pathogen Biology and Biosecurity, and Key Laboratory of Tropical Disease Control of Ministry of Education, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Yalin Wang
- Institute of Human Virology, Department of Pathogen Biology and Biosecurity, and Key Laboratory of Tropical Disease Control of Ministry of Education, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Rong Li
- Institute of Human Virology, Department of Pathogen Biology and Biosecurity, and Key Laboratory of Tropical Disease Control of Ministry of Education, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Chaofeng Liang
- Institute of Human Virology, Department of Pathogen Biology and Biosecurity, and Key Laboratory of Tropical Disease Control of Ministry of Education, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Quyu Yuan
- Institute of Human Virology, Department of Pathogen Biology and Biosecurity, and Key Laboratory of Tropical Disease Control of Ministry of Education, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Yu Liang
- Institute of Human Virology, Department of Pathogen Biology and Biosecurity, and Key Laboratory of Tropical Disease Control of Ministry of Education, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Qiannan Fang
- Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guanzhou, China
| | - Zhihui Xi
- Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guanzhou, China
| | - Wenjie Li
- Institute of Human Virology, Department of Pathogen Biology and Biosecurity, and Key Laboratory of Tropical Disease Control of Ministry of Education, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Liting Liang
- Qianyang Biomedical Research Institute, Guangzhou, China
| | | | - Hui Tang
- Institute of Human Virology, Department of Pathogen Biology and Biosecurity, and Key Laboratory of Tropical Disease Control of Ministry of Education, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Yi Peng
- Institute of Human Virology, Department of Pathogen Biology and Biosecurity, and Key Laboratory of Tropical Disease Control of Ministry of Education, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Changwen Ke
- Guangdong Provincial Center for Disease Control and Prevention, Guangzhou, China
| | - Xiancai Ma
- Guangzhou Laboratory, Bio-island, Guangzhou, China
| | - Weibin Cai
- Laboratory Animal Center, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Ting Pan
- Institute of Human Virology, Department of Pathogen Biology and Biosecurity, and Key Laboratory of Tropical Disease Control of Ministry of Education, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
- Center for Infection and Immunity Study, School of Medicine, Sun Yat-sen University, Shenzhen, China
| | - Bingfeng Liu
- Institute of Human Virology, Department of Pathogen Biology and Biosecurity, and Key Laboratory of Tropical Disease Control of Ministry of Education, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Kai Deng
- Institute of Human Virology, Department of Pathogen Biology and Biosecurity, and Key Laboratory of Tropical Disease Control of Ministry of Education, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Jun Chen
- Institute of Human Virology, Department of Pathogen Biology and Biosecurity, and Key Laboratory of Tropical Disease Control of Ministry of Education, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
- Laboratory Animal Center, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China
| | - Jincun Zhao
- Guangzhou Laboratory, Bio-island, Guangzhou, China.
- State Key Laboratory of Respiratory Disease, National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, The First Affiliated Hospital of Guangzhou Medical University, Guangzhou, China.
| | - Xuepeng Wei
- Guangzhou Laboratory, Bio-island, Guangzhou, China.
| | - Ran Chen
- Institute of Human Virology, Department of Pathogen Biology and Biosecurity, and Key Laboratory of Tropical Disease Control of Ministry of Education, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China.
| | - Yiwen Zhang
- Institute of Human Virology, Department of Pathogen Biology and Biosecurity, and Key Laboratory of Tropical Disease Control of Ministry of Education, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China.
| | - Hui Zhang
- Institute of Human Virology, Department of Pathogen Biology and Biosecurity, and Key Laboratory of Tropical Disease Control of Ministry of Education, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, China.
- Guangzhou Laboratory, Bio-island, Guangzhou, China.
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Lv X, Chen R, Liang T, Peng H, Fang Q, Xiao S, Liu S, Hu M, Yu F, Cao L, Zhang Y, Pan T, Xi Z, Ding Y, Feng L, Zeng T, Huang W, Zhang H, Ma X. NSP6 inhibits the production of ACE2-containing exosomes to promote SARS-CoV-2 infectivity. mBio 2024; 15:e0335823. [PMID: 38303107 PMCID: PMC10936183 DOI: 10.1128/mbio.03358-23] [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: 12/14/2023] [Accepted: 01/04/2024] [Indexed: 02/03/2024] Open
Abstract
The emergence of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) has triggered a global pandemic, which severely endangers public health. Our and others' works have shown that the angiotensin-converting enzyme 2 (ACE2)-containing exosomes (ACE2-exos) have superior antiviral efficacies, especially in response to emerging variants. However, the mechanisms of how the virus counteracts the host and regulates ACE2-exos remain unclear. Here, we identified that SARS-CoV-2 nonstructural protein 6 (NSP6) inhibits the production of ACE2-exos by affecting the protein level of ACE2 as well as tetraspanin-CD63 which is a key factor for exosome biogenesis. We further found that the protein stability of CD63 and ACE2 is maintained by the deubiquitination of proteasome 26S subunit, non-ATPase 12 (PSMD12). NSP6 interacts with PSMD12 and counteracts its function, consequently promoting the degradation of CD63 and ACE2. As a result, NSP6 diminishes the antiviral efficacy of ACE2-exos and facilitates the virus to infect healthy bystander cells. Overall, our study provides a valuable target for the discovery of promising drugs for the treatment of coronavirus disease 2019. IMPORTANCE The outbreak of coronavirus disease 2019 (COVID-19) severely endangers global public health. The efficacy of vaccines and antibodies declined with the rapid emergence of severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) mutants. Angiotensin-converting enzyme 2-containing exosomes (ACE2-exos) therapy exhibits a broad neutralizing activity, which could be used against various viral mutations. Our study here revealed that SARS-CoV-2 nonstructural protein 6 inhibited the production of ACE2-exos, thereby promoting viral infection to the adjacent bystander cells. The identification of a new target for blocking SARS-CoV-2 depends on fully understanding the virus-host interaction networks. Our study sheds light on the mechanism by which the virus resists the host exosome defenses, which would facilitate the study and design of ACE2-exos-based therapeutics for COVID-19.
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Affiliation(s)
- Xi Lv
- School of Medicine, South China University of Technology, Guangzhou, Guangdong, China
- Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, China
| | - Ran Chen
- Institute of Human Virology, Key Laboratory of Tropical Disease Control of Ministry Education, Guangdong Engineering Research Center for Antimicrobial Agent and Immunotechnology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Taizhen Liang
- Guangzhou National Laboratory, Guangzhou International Bio-Island, Guangzhou, Guangdong, China
| | - Haojie Peng
- Department of Breast Surgery, the Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Qiannan Fang
- Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, China
| | - Shiqi Xiao
- Guangzhou National Laboratory, Guangzhou International Bio-Island, Guangzhou, Guangdong, China
| | - Sen Liu
- School of Medicine, South China University of Technology, Guangzhou, Guangdong, China
- Guangzhou National Laboratory, Guangzhou International Bio-Island, Guangzhou, Guangdong, China
| | - Meilin Hu
- Guangzhou National Laboratory, Guangzhou International Bio-Island, Guangzhou, Guangdong, China
- Department of Breast Surgery, the Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Fei Yu
- Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, China
| | - Lixue Cao
- Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, China
| | - Yiwen Zhang
- Institute of Human Virology, Key Laboratory of Tropical Disease Control of Ministry Education, Guangdong Engineering Research Center for Antimicrobial Agent and Immunotechnology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Ting Pan
- Center for Infection and Immunity Studies, School of Medicine, Shenzhen Campus of Sun Yat-sen University, Shenzhen, Guangdong, China
| | - Zhihui Xi
- Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, China
| | - Yao Ding
- Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, China
| | - Linyuan Feng
- Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, China
| | - Tao Zeng
- Department of Breast Surgery, the Second Affiliated Hospital of Guangzhou Medical University, Guangzhou, Guangdong, China
| | - Wenjing Huang
- Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, China
| | - Hui Zhang
- School of Medicine, South China University of Technology, Guangzhou, Guangdong, China
- Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, China
- Institute of Human Virology, Key Laboratory of Tropical Disease Control of Ministry Education, Guangdong Engineering Research Center for Antimicrobial Agent and Immunotechnology, Zhongshan School of Medicine, Sun Yat-sen University, Guangzhou, Guangdong, China
| | - Xiancai Ma
- School of Medicine, South China University of Technology, Guangzhou, Guangdong, China
- Guangdong Provincial People's Hospital (Guangdong Academy of Medical Sciences), Southern Medical University, Guangzhou, Guangdong, China
- Guangzhou National Laboratory, Guangzhou International Bio-Island, Guangzhou, Guangdong, China
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Fang Q, Bi X, Wei H, Liu S, Di J, Liu Y, Xu F, Wang B. A novel nonsense mutation of PNLDC1 associated with male infertility due to oligo-astheno-teratozoospermia in a consanguineous Chinese family. QJM 2023; 116:866-868. [PMID: 37458503 DOI: 10.1093/qjmed/hcad163] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2023] [Indexed: 10/25/2023] Open
Affiliation(s)
- Q Fang
- Department of Reproduction, Tianjin First Central Hospital, Tianjin, China
| | - X Bi
- Center for Genetics, National Research Institute for Family Planning, Beijing, China
- Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - H Wei
- Center for Genetics, National Research Institute for Family Planning, Beijing, China
- Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - S Liu
- Center for Genetics, National Research Institute for Family Planning, Beijing, China
- Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - J Di
- Department of Reproduction, Tianjin First Central Hospital, Tianjin, China
| | - Y Liu
- Department of Reproduction, Tianjin First Central Hospital, Tianjin, China
| | - F Xu
- Department of Reproduction, Tianjin First Central Hospital, Tianjin, China
| | - B Wang
- Center for Genetics, National Research Institute for Family Planning, Beijing, China
- Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
- NHC Key Laboratory of Reproductive Health Engineering Technology Research (NRIFP)
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Liu YJ, Wu P, An G, Fang Q, Zheng J, Wang YB. [Research advances on the techniques for diagnosing burn wound depth]. Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi 2022; 38:481-485. [PMID: 35599424 DOI: 10.3760/cma.j.cn501120-20210518-00195] [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: 06/15/2023]
Abstract
The accurate diagnosis of burn wound depth is particularly important for evaluating the disease prognosis of burn patients. In the past, the diagnosis of burn wound depth often relied on the subjective judgment of doctors. With the continuous development of diagnostic technology, the methods for judging the depth of burn wound have also been updated. This paper mainly summarizes the research progress in the applications of indocyanine green angiography, laser Doppler imaging, laser speckle contrast imaging, and artificial intelligence in the diagnosis of burn wound depth, and compares the advantages and disadvantages of these techniques, so as to provide ideas for accurate diagnosis of burn wound depth.
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Affiliation(s)
- Y J Liu
- The First Clinical Medical College,Shandong University of Traditional Chinese Medicine, Jinan 250061, China
| | - P Wu
- Department of Plastic Surgery, the First Affiliated Hospital (Shandong Provincial Qianfoshan Hospital), Shandong First Medical University, Jinan Clinical Medicine Research Center for Tissue Engineering Skin Regeneration and Wound Repair, Jinan 250014, China
| | - G An
- Department of Plastic Surgery, the First Affiliated Hospital (Shandong Provincial Qianfoshan Hospital), Shandong First Medical University, Jinan Clinical Medicine Research Center for Tissue Engineering Skin Regeneration and Wound Repair, Jinan 250014, China
| | - Q Fang
- The First Clinical Medical College,Shandong University of Traditional Chinese Medicine, Jinan 250061, China
| | - J Zheng
- The First Clinical Medical College,Shandong University of Traditional Chinese Medicine, Jinan 250061, China
| | - Y B Wang
- Department of Plastic Surgery, the First Affiliated Hospital (Shandong Provincial Qianfoshan Hospital), Shandong First Medical University, Jinan Clinical Medicine Research Center for Tissue Engineering Skin Regeneration and Wound Repair, Jinan 250014, China
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Chen TB, Jing ZC, Fang Q, Zhang SY. [Issues should be concerned on the anticoagulation treatment in elderly patients with atrial fibrillation]. Zhonghua Xin Xue Guan Bing Za Zhi 2022; 50:20-24. [PMID: 35045610 DOI: 10.3760/cma.j.cn112148-20210225-00173] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Affiliation(s)
- T B Chen
- Department of Cardiology, Peking Union Medical College Hospital, Peking Union Medical College,Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Z C Jing
- Department of Cardiology, Peking Union Medical College Hospital, Peking Union Medical College,Chinese Academy of Medical Sciences, Beijing 100730, China
| | - Q Fang
- Department of Cardiology, Peking Union Medical College Hospital, Peking Union Medical College,Chinese Academy of Medical Sciences, Beijing 100730, China
| | - S Y Zhang
- Department of Cardiology, Peking Union Medical College Hospital, Peking Union Medical College,Chinese Academy of Medical Sciences, Beijing 100730, China
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Fang Q, Zeng J, Wu D. Eyelid metastasis as the initial presentation of renal cell carcinoma: Case report. J Fr Ophtalmol 2021; 45:137-139. [PMID: 34949503 DOI: 10.1016/j.jfo.2021.08.024] [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: 08/07/2021] [Accepted: 08/13/2021] [Indexed: 10/19/2022]
Affiliation(s)
- Q Fang
- Department of Urology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China
| | - J Zeng
- Department of Urology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China.
| | - D Wu
- Department of Urology, The First Affiliated Hospital of Xi'an Jiaotong University, Xi'an 710061, China.
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Zhang XX, Yao FR, Zhu JH, Chen ZG, Shen YP, Qiao YN, Shi HC, Liang JH, Wang XM, Fang Q. Nomogram to predict haemorrhagic transformation after stroke thrombolysis: a combined brain imaging and clinical study. Clin Radiol 2021; 77:e92-e98. [PMID: 34657729 DOI: 10.1016/j.crad.2021.09.017] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2021] [Accepted: 09/15/2021] [Indexed: 11/26/2022]
Abstract
AIM To construct a novel nomogram by integrating computed tomography perfusion (CTP) and clinical parameters for individualised prediction of haemorrhagic transformation (HT) in intravenous thrombolysis (IVT)-treated acute ischaemic stroke (AIS) patients. METHODS Anterior circulation AIS patients who underwent IVT at a single centre from January 2018 to June 2020 were reviewed retrospectively. The CTP parameters of two regions of interest (ROI), the entire perfusion lesion areas, and the infract core areas, were assessed. HT was documented by follow-up CT 24 ± 2 h after IVT. Multivariable logistic regression was conducted by including clinical variables and CTP parameters to identify the independent predictors of HT. A nomogram was developed based on the independent predictors. The discriminative value and calibration of the nomogram were tested by concordance indexes (C-indexes) and calibration plots. Internal validation was performed using fivefold cross-validation. RESULTS The nomogram was generated using the complete data from 341 patients. Seven variables were included in the final nomogram, including: the relative cerebral blood volume (rCBV), permeability surface (PS), and relative PS (rPS) in infract core areas, the relative time to maximum (rTmax) and rPS in entire perfusion lesion areas, the National Institutes of Health Stroke Scale (NIHSS), and atrial fibrillation (AF). The C-indexes were 0.815 and 0.817 for the nomogram and internal validation. The calibration plots showed excellent agreement. CONCLUSION This is the first study establishing a nomogram based on CTP and clinical parameters to predict HT after stroke thrombolysis.
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Affiliation(s)
- X-X Zhang
- Department of Neurology, Yancheng Third People's Hospital, Yancheng, 224000, Jiangsu Province, China; Department of Neurology, The First Affiliated Hospital of Soochow University, Soochow, 215000, Jiangsu, China
| | - F-R Yao
- Department of Radiology, The First Affiliated Hospital of Soochow University, Suzhou, 215000, Jiangsu, China
| | - J-H Zhu
- Department of Neurology, The First Affiliated Hospital of Soochow University, Soochow, 215000, Jiangsu, China
| | - Z-G Chen
- Department of Neurology, The First Affiliated Hospital of Soochow University, Soochow, 215000, Jiangsu, China
| | - Y-P Shen
- Department of Epidemiology and Biostatistics, School of Public Health, Medical College of Soochow University, Suzhou, 215000, Jiangsu, China
| | - Y-N Qiao
- Department of Epidemiology and Biostatistics, School of Public Health, Medical College of Soochow University, Suzhou, 215000, Jiangsu, China
| | - H-C Shi
- Department of Neurology, Yancheng Third People's Hospital, Yancheng, 224000, Jiangsu Province, China
| | - J-H Liang
- Department of Imaging, Medical College of Soochow University, Suzhou, 215000, Jiangsu Province, China
| | - X-M Wang
- Department of Radiology, The First Affiliated Hospital of Soochow University, Suzhou, 215000, Jiangsu, China.
| | - Q Fang
- Department of Neurology, The First Affiliated Hospital of Soochow University, Soochow, 215000, Jiangsu, China.
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Abstract
Abstract
Cardiac amyloidosis is a rare disease due to the deposition of amyloid fibrils in the heart. Clinical manifestation of the heart includes restrictive heart failure and arrhythmia, when myocardium and conduction system are involved respectively. Arrhythmia can present as atrioventricular block (AVB), and sick sinus syndrome (SSS), therefore cardiac amyloidosis may require permanent pacemaker implantation. However, the stability of pacemaker parameters in cardiac amyloidosis patients remains unknown.
We conducted an observational retrospective study of patients diagnosed with cardiac amyloidosis who underwent permanent pacemaker implantation from January 1, 2011 to December 31, 2019. Base-line data were obtained via Medical Record System. Data of pacemaker parameters were obtained via pacemaker programming at the time of implantation and last follow-up at the clinic.
A total of 10 patients were included in our study, among which 5 patients underwent cardiac biopsy and showed positive result, 4 patients showed positive biopsy result of other tissue and characteristic echocardiography result of restrictive diastolic dysfunction, 1 patient was diagnosed with primary systematic amyloidosis (AL) involving kidney and advanced atrioventricular block. Amyloidosis type of the 10 patients were primary systemic amyloidosis (AL). Among the 10 patients, 3 were female (30.0%), and the mean age was 61.3±3.9. All patients met the indication for permanent pacemaker implantation, including 9 SSS and 1 advanced AVB. 9 patients were implanted with DDD, and 1 with VVI. The middle survival time was 446 (331, 728) days from the time of implantation to last follow-up (June 30, 2020). Two patients died due to disease progression. As for the 7 patients whose baseline and follow-up data were both obtained, pacemaker parameters at baseline were as followed: Atrial Impedance 477.8±115.0 Ω, Atrial P Wave 1.30±0.70 mV, Atrial Threshold 0.75±0.16 V@0.4ms, Ventricular Impedance 551.3±233.4 Ω, Ventricular R Wave 7.99±4.66 mV, Ventricular Threshold 0.76±0.15 V@0.4ms. Pacemaker parameters at follow-up were as followed: Atrial Impedance 426.2±93.2 Ω, Atrial P Wave 1.34±0.71 mV, Atrial Threshold 1.59±1.51 V@0.4ms, Ventricular Impedance 405.8±41.6 Ω, Ventricular R Wave 10.69±6.53 mV, Ventricular Threshold 1.80±1.88 V@0.4ms.
Most patients relieved from cardiac symptoms and severe cardiac complications. A relatively short-term follow-up indicated elevation of Ventricular Threshold (P=0.028), and analysis of other parameters showed insignificant results. Elevation of Ventricular Threshold may be explained by the progression of amyloid fibrils deposition in the heart. Ventricular Threshold of one patient significantly increased from 1.0 V to 6.0 V at 3-month follow-up. Since all patients underwent chemotherapy for the primary amyloidosis, stability of pacemaker parameters may be another way for evaluation. Long-term follow-up is needed for further evaluation.
Funding Acknowledgement
Type of funding sources: None.
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Affiliation(s)
- J.Q Wang
- Peking Union Medical College Hospital, Department of Cardiology, Beijing, China
| | - D.Y Yang
- Peking Union Medical College Hospital, Department of Cardiology, Beijing, China
| | - Q Fang
- Peking Union Medical College Hospital, Department of Cardiology, Beijing, China
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Li WY, Du ZC, Wang Y, Lin X, Lu L, Fang Q, Zhang WF, Cai MW, Xu L, Hao YT. [Epidemiological characteristics of local outbreak of COVID-19 caused by SARS-CoV-2 Delta variant in Liwan district, Guangzhou]. Zhonghua Liu Xing Bing Xue Za Zhi 2021; 42:1763-1768. [PMID: 34814609 DOI: 10.3760/cma.j.cn112338-20210613-00472] [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] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyze the epidemiological characteristics of a local outbreak of COVID-19 caused by SARS-CoV-2 B.1.617.2(Delta) variant in Liwan district, Guangzhou, and provide evidence for the further prevention and control of the Delta variant of COVID-19. Methods: From May 21 to June 18, 2021, the incidence data of COVID-19 caused by Delta variant were obtained from National Notifiable Disease Report System of Chinese Disease Prevention and Control Information System and Liwan District Center for Disease Control and Prevention of Guangzhou.Frequency analysis (proportions), histograms, and percentage stacked area plots were used to describe the epidemiological characteristics of the outbreaks. The incubation period and time-varying reproduction numbers (Rt) estimations were used for the further analysis. Results: By June 18, 2021, a total of 127 COVID-19 cases caused by Delta variant was reported in Liwan district. The youngest case was aged 2 years and the oldest was aged 85 years. There were 18.9% (24/127) aged <18 years, 43.3% (55/127) aged 18-59 years, and 37.8% (48/127) aged ≥60 years, the male to female ratio of the cases was 1∶1.35 (54∶73). The cases were mainly retired people (32.3%, 41/127), the jobless or unemployed (18.1%, 23/127), and students (16.5%, 21/127). The infections mainly occurred in Baihedong (70.1%, 89/127) and Zhongnan street (23.6%, 30/127) communities in the southern area of Liwan district. The median incubation period of the Delta variant infection was 6 days (range: 1-15 days). The clinical classification were mainly common type (64.6%, 82/127). The basic reproduction number (R0) was 5.1, Rt which once increased to 7.3. The transmissions mainly occurred in confined spaces, such as home (26.8%), restaurant (29.1%), neighborhood (3.9%), and market (3.1%), the household clustering was predominant. Close contacts tracing (66.1%) and community screening (33.1%) were the main ways to find the infections. Conclusion: The COVID-19 outbreak caused by Delta variant in Liwan district of Guangzhou was highly contagious, with the obvious characteristics of household clustering and high proportions of cases in adults aged 18-59 years and elderly people aged ≥60 years.
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Affiliation(s)
- W Y Li
- Division of Disease Prevention, Liwan District Center for Disease Control and Prevention of Guangzhou, Guangzhou 510000, China
| | - Z C Du
- Department of Medical Statistics, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Y Wang
- Department of Medical Statistics, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - X Lin
- Department of Medical Statistics, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - L Lu
- Division of Disease Prevention, Liwan District Center for Disease Control and Prevention of Guangzhou, Guangzhou 510000, China
| | - Q Fang
- Division of Disease Prevention, Liwan District Center for Disease Control and Prevention of Guangzhou, Guangzhou 510000, China
| | - W F Zhang
- Division of Disease Prevention, Liwan District Center for Disease Control and Prevention of Guangzhou, Guangzhou 510000, China
| | - M W Cai
- Division of Disease Prevention, Liwan District Center for Disease Control and Prevention of Guangzhou, Guangzhou 510000, China
| | - L Xu
- Department of Epidemiology,School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
| | - Y T Hao
- Department of Medical Statistics, School of Public Health, Sun Yat-sen University, Guangzhou 510080, China
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Zhang Y, Li S, Du X, Guo J, Gong Q, Tao S, Zhang P, Fang Q, Pan S, Zhao C, Liang X, Hang Y. Yb:GdScO 3 crystal for efficient ultrashort pulse lasers. Opt Lett 2021; 46:3641-3644. [PMID: 34329246 DOI: 10.1364/ol.431243] [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: 05/16/2021] [Accepted: 06/18/2021] [Indexed: 06/13/2023]
Abstract
We present, to the best of our knowledge, the first demonstration of thermal, optical, and laser properties of Yb:GdScO3 for potentially efficient ultrashort pulse lasers. The stimulated emission cross section at 1025 nm (E//c) is 0.46×10-20cm2 with the emission band width of 85 nm, even broader than the well-known Yb:CaGdAlO4. It has quite a high thermal conductivity of 5.54W/(m⋅K) at 50°C, comparable with Yb:YAG. In the continuous-wave regime, the maximum output power of 13.45 W at 1063.9 nm was generated with the optical-to-optical efficiency of 63.3%. These results suggest that the Yb:GdScO3 crystal is a promising candidate for ultrashort pulse lasers.
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Fang Q, Zhang Y, Jiang DS, Chen Y. Hydroxytyrosol inhibits apoptosis in ischemia/reperfusion-induced acute kidney injury via activating Sonic Hedgehog signaling pathway. Eur Rev Med Pharmacol Sci 2021; 24:12380-12388. [PMID: 33336758 DOI: 10.26355/eurrev_202012_24032] [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] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE Acute kidney injury (AKI) is a common critical illness in clinic, which seriously threatens the life of patients. The aim of this study was to validate the anti-apoptotic effect of hydroxytyrosol (HT) in ischemia/reperfusion (I/R)-induced AKI. MATERIALS AND METHODS The cell model of AKI was established by hypoxia/reoxygenation (H/R), and the animal model of AKI was established by I/R. The apoptosis was observed by Caspase-3 activity assay, flow cytometry and terminal deoxynucleotidyl transferase (TdT)-mediated dUTP nick end labeling (TUNEL) staining. Cell viability was detected by cell counting kit-8 (CCK-8) assay. Protein expression was measured by Western blot and mRNA level was analyzed by quantitative real-time polymerase chain reaction (RT-PCR). Renal function was assessed by measuring serum creatinine (Cr) and blood urea nitrogen (BUN). RESULTS H/R induced apoptosis of HK-2 cells and reduced cell viability. When HK-2 cells were pretreated with HT, apoptosis was markedly inhibited, and cell viability was greatly increased. In addition, HT could inhibit I/R-induced apoptosis of rat kidney cells and could notably improve rat kidney function. H/R promoted Sonic Hedgehog (SHH) expression in HK-2 cells, while HT treatment further enhanced SHH expression. Similarly, I/R induces SHH expression in kidney tissue, and HT could further promote SHH expression. CONCLUSIONS These results indicated that HT could inhibit apoptosis in I/R-induced AKI via activating SHH signaling pathway.
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Affiliation(s)
- Q Fang
- Department of Nephrology, Taizhou People's Hospital, The Fifth Affiliated Hospital of Nantong University, Taizhou, China.
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12
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Gong YQ, Ni JL, Fang Q, Li T. MiR-1231 enhances docetaxel sensitivity to gallbladder carcinoma cells by downregulating FOXC2. Eur Rev Med Pharmacol Sci 2021; 24:12116-12123. [PMID: 33336729 DOI: 10.26355/eurrev_202012_24000] [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] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE To illustrate the role of microRNA-1231 (miR-1231) in regulating malignant proliferative potential and DTX sensitivity to gallbladder carcinoma (GBC) by regulating FOXC2 level. PATIENTS AND METHODS Expression levels of miR-1231 in GBC tissues and paracancerous ones were detected. The relationship between miR-1231 level and clinical parameters of GBC patients was analyzed. After overexpression of miR-1231, changes in proliferative and apoptotic potentials in GBC-SD and NOZ cells were examined by Cell Counting Kit-8 (CCK-8), colony formation assay and flow cytometry, respectively. Regulatory effects of miR-1231 on its downstream gene FOXC2 were determined by Luciferase assay. Finally, the role of miR-1231 in regulating DTX sensitivity to GBC cells was assessed. RESULTS MiR-1231 was downregulated in GBC tissues compared to paracancerous ones. GBC patients expressing lower level of miR-1231 had worse tumor staging and larger tumor size. Overexpression of miR-1231 attenuated proliferative potential, and induced apoptosis in GBC cells. FOXC2 was upregulated in GBC and negatively linked to miR-1231. Luciferase activity confirmed that FOXC2 was the target gene binding miR-1231. DTX treatment dose-dependently suppressed viability in GBC cells and overexpression of miR-1231 could enhance DTX sensitivity in GBC. Notably, overexpression of FOXC2 abolished regulatory effects of overexpressed miR-1231 on proliferative and apoptotic potentials in GBC cells. CONCLUSIONS MiR-1231 is downregulated in GBC species. Its level is closely linked to tumor staging and tumor size in GBC patients. By downregulating FOXC2, miR-1231 enhances DTX sensitivity to GBC cells and thus alleviates the malignant development of GBC.
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Affiliation(s)
- Y-Q Gong
- Department of Pharmacy, Guangrao People's Hospital, Dongying, China.
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Zhou HF, Xu LL, Xie B, Ding HG, Fang F, Fang Q. Hsa-circ-0068566 inhibited the development of myocardial ischemia reperfusion injury by regulating hsa-miR-6322/PARP2 signal pathway. Eur Rev Med Pharmacol Sci 2021; 24:6980-6993. [PMID: 32633392 DOI: 10.26355/eurrev_202006_21690] [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] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE In recent years, studies have shown that noncoding RNA (circRNA) is an important regulatory molecule involved in cell physiology and pathology. Herein, we analyzed the role of circRNA-68566 in the regulation of myocardial ischemia-reperfusion (I/R) injury by regulating miR-6322/PARP2 signaling pathway. MATERIALS AND METHODS Cell viability was checked by CCK-8; LDH concentration, ROS production, MDA, SOD and GSH-Px were measured by corresponding kits; QPCR was used to inspect the expression of circRNA-0068566 and miR-6322 in I/R injury and H9C2 cells; luciferase reporter assay confirmed the direct target effect of circRNA-0068566 and miR-6322; Western blot was used to investigate PARP2 protein expression in I/R injury and H9C2 cells. RESULTS We analyzed the regulatory effect of circRNA-68566 on I/R injury and found that circRNA-68566 promoted the proliferation of injured cardiomyocytes in vitro and in vivo. circRNA-68566 and miR-6322 were directly combined to regulate the development of I/R injury. We also confirmed that PARP2 was the target of miR-6322 in I/R injury. CONCLUSIONS We believed that circRNA-68566 participated in myocardial ischemia-reperfusion injury by regulating miR-6322/PARP2 signaling pathway, which provided a new possible strategy for the treatment of I/R injury.
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Affiliation(s)
- H-F Zhou
- Intensive Care Unit, The First Affiliated Hospital, College of Medicine, Zhejiang University, Hangzhou City, Zhejiang Province, PR. China.
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Xu XQ, Tian Z, Fang Q, Jing ZC, Zhang SY. [Standard operation procedure of percutaneous endomyocardial biopsy in Peking Union Medical College Hospital]. Zhonghua Xin Xue Guan Bing Za Zhi 2021; 49:12-16. [PMID: 33429480 DOI: 10.3760/cma.j.cn112148-20200723-00583] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Affiliation(s)
- X Q Xu
- Department of Cardiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College,Beijing 100730, China
| | - Z Tian
- Department of Cardiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College,Beijing 100730, China
| | - Q Fang
- Department of Cardiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College,Beijing 100730, China
| | - Z C Jing
- Department of Cardiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College,Beijing 100730, China
| | - S Y Zhang
- Department of Cardiology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences and Peking Union Medical College,Beijing 100730, China
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Abstract
Regulatory T cells (Treg) play an indispensable role in maintaining the body's immune nonresponse to self-antigens and suppressing the body's unwarranted and potentially harmful immune responses. Their absence, reduction, dysfunction, transformation, and instability can lead to numerous autoimmune diseases. There are several distinct subtypes of the Treg cells, although they share certain biological characteristics and have unique phenotypes with different regulatory functions, as well as mechanistic abilities. In this book chapter, we introduce the latest advances in Treg cell subtypes pertaining to classification, phenotype, biological characteristics, and mechanisms. We also highlight the relationship between Treg cells and various diseases, including autoimmune, infectious, as well as tumors and organ transplants.
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Affiliation(s)
- Yang Du
- Department of Pathology and Physiopathology, Guilin Medical University, Guilin, Guangxi, China.,Laboratory of Tumor Immunology and Microenvironmental Regulation, Guilin Medical University, Guilin, Guangxi, China
| | - Qiannan Fang
- Department of Clinical Immunology, The Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China
| | - Song-Guo Zheng
- Department of Internal Medicine, Ohio State University College of Medicine and Wexner Medical Center, Columbus, OH, USA.
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Tao ZY, Liu WP, Dong J, Feng XX, Yao DW, Lv QL, Ibrahim U, Dong JJ, Culleton R, Gu W, Su PP, Tao L, Li JY, Fang Q, Xia H. Purification of Plasmodium and Babesia- infected erythrocytes using a non-woven fabric filter. Trop Biomed 2020; 37:911-918. [PMID: 33612745 DOI: 10.47665/tb.37.4.911] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
The purification of parasite-infected erythrocytes from whole blood containing leucocytes is crucial for many downstream genetic and molecular assays in parasitology. Current methodologies to achieve this are often costly and time consuming. Here, we demonstrate the successful application of a cheap and simple Non-Woven Fabric (NWF) filter for the purification of parasitized red blood cells from whole blood. NWF filtration was applied to the malaria-parasitized blood of three strains of mice, and one strain of rat, and to Babesia gibsoni parasitized dog blood. Before and after filtration, the white blood cell (WBC) removal rates and red blood cell (RBC) recovery rates were measured. After NWF filter treatment of rodent malaria-infected blood, the WBC removal rates and RBC recovery rates were, for Kunming mice: 99.51%±0.30% and 86.12%±8.37%; for BALB/C mice: 99.61%±0.15% and 80.74%±7.11%; for C57 mice: 99.71%±0.12% and 84.87%±3.83%; for Sprague-Dawley rats: 99.93%±0.03% and 83.30%±2.96%. Microscopy showed WBCs were efficiently removed from infected dog blood samples, and there was no obvious morphological change of B. gibsoni parasites. NWF filters efficiently remove leukocytes from malaria parasite-infected mouse and rat blood, and are also suitable for filtration of B. gibsoni-infected dog blood.
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Affiliation(s)
- Z Y Tao
- Department of Microbiology and Parasitology, Bengbu Medical College, 2600# Donghai Avenue, Bengbu 233030, China.,Anhui Provincial Key Laboratory of Infection and Immunology, Bengbu Medical College, 2600# Donghai Avenue, Bengbu 233030, China
| | - W P Liu
- Department of Microbiology and Parasitology, Bengbu Medical College, 2600# Donghai Avenue, Bengbu 233030, China.,Anhui Provincial Key Laboratory of Infection and Immunology, Bengbu Medical College, 2600# Donghai Avenue, Bengbu 233030, China
| | - J Dong
- Department of Microbiology, Bengbu Center for Disease Control and Prevention, 700# Huayuan Road, Bengbu 233000, China
| | - X X Feng
- College of Veterinary Medicine, Nanjing Agricultural University, No.1 Weigang Road, Nanjing 210095, China
| | - D W Yao
- College of Veterinary Medicine, Nanjing Agricultural University, No.1 Weigang Road, Nanjing 210095, China
| | - Q L Lv
- Department of Microbiology and Parasitology, Bengbu Medical College, 2600# Donghai Avenue, Bengbu 233030, China
| | - U Ibrahim
- Department of Microbiology and Parasitology, Bengbu Medical College, 2600# Donghai Avenue, Bengbu 233030, China.,Anhui Provincial Key Laboratory of Infection and Immunology, Bengbu Medical College, 2600# Donghai Avenue, Bengbu 233030, China
| | - J J Dong
- Department of Microbiology and Parasitology, Bengbu Medical College, 2600# Donghai Avenue, Bengbu 233030, China
| | - R Culleton
- Department of Molecular Parasitology, Proteo-Science Center, Ehime University, Shitsukawa, Toon, Ehime 791-0295, Japan
| | - W Gu
- Department of Microbiology and Parasitology, Bengbu Medical College, 2600# Donghai Avenue, Bengbu 233030, China
| | - P P Su
- Department of Microbiology and Parasitology, Bengbu Medical College, 2600# Donghai Avenue, Bengbu 233030, China
| | - L Tao
- Department of Microbiology and Parasitology, Bengbu Medical College, 2600# Donghai Avenue, Bengbu 233030, China
| | - J Y Li
- Department of Microbiology and Parasitology, Bengbu Medical College, 2600# Donghai Avenue, Bengbu 233030, China
| | - Q Fang
- Department of Microbiology and Parasitology, Bengbu Medical College, 2600# Donghai Avenue, Bengbu 233030, China.,Anhui Provincial Key Laboratory of Infection and Immunology, Bengbu Medical College, 2600# Donghai Avenue, Bengbu 233030, China
| | - H Xia
- Department of Microbiology and Parasitology, Bengbu Medical College, 2600# Donghai Avenue, Bengbu 233030, China.,Anhui Provincial Key Laboratory of Infection and Immunology, Bengbu Medical College, 2600# Donghai Avenue, Bengbu 233030, China
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Wang Y, Yao X, Tang MY, Liu L, Song SH, Tao ZY, Xia H, Chang XL, Fang Q. [Immune characteristics of Plasmodium reinfections in mice following chloroquine cure of primary Plasmodium infections]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2020; 32:569-576. [PMID: 33325190 DOI: 10.16250/j.32.1374.2020164] [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: 11/27/2022]
Abstract
OBJECTIVE To investigate the disease progression and immunoprotective characteristics in mice re-infected with homogeneous/heterogeneous Plasmodium strains following cure of Plasmodium infections with chloroquine at the peak of parasitemia. METHODS C57BL/6 mice were infected with the non-lethal P. yoelii 17XNL strain, and half of mice were given treatment with chloroquine at the peak of parasitemia (9 days post-infection), while the other mice were self-cured naturally. Then, all cured mice were re-infected with the equivalent lethal P. yoelii 17XL or P. berghei ANKA strain 90 days following primary Plasmodium infections. The parasitemia levels during primary infections and reinfections were measured by microscopic examinations of Giemsa-stained thin blood films, and the levels of the IgG antibody in sera and the percentages of memory T cell subsets in spleen cells were detected in mice using ELISA and flow cytometry before and after parasite reinfections, respectively. RESULTS Following primary infections with the P. yoelii 17XNL strain, the serum IgG antibody levels were (5.047 ± 0.924) pg/mL in the selfcured mice and (4.429 ± 0.624) pg/mL in the chloroquine-treated mice, respectively (t = 0.437, P > 0.05), which were both significantly higher than that in the uninfected mice (1.624 pg/mL ± 0.280 pg/mL) (F = 22.522, P < 0.01). There was no significant difference in the serum IgG antibody level among self-cured and chloroquine-treated mice re-infected with the P. yoelii 17XL strain or the P. berghei ANKA strain (F = 0.542, P > 0.05); however, the serum IgG antibody levels were all significantly higher in selfcured and chloroquine-treated mice re-infected with the P. yoelii 17XLstrain[(15.487±1.173)pg/mLand(15.965±1.150)pg/mL] or the P. berghei ANKA strain [(14.644 ± 1.523) pg/mL and (15.185 ± 1.333) pg/mL] relative to primary infections (F = 67.383, P < 0.01). There was no significant difference in the proportion of CD4+ [(34.208 ± 2.106), (32.820 ± 1.930), (34.023 ± 2.289), (35.608 ± 1.779) pg/mL] or CD8+ T memory cells [(17.935 ± 2.092), (18.918 ± 2.823), (17.103 ± 1.627), (17.873 ± 1.425) pg/mL] in self-cured and chloroquine-treated mice with primary infections with the P. yoelii 17XNL strain followed by re-infections with the P. yoelii 17XL strain or the P. berghei ANKA strain (F = 0.944 and 0.390, both P > 0.05); however, the proportions of the CD4+ or CD8+ T memory cells were significantly greater in self-cured and chloroquine-treated mice with primary infections with the P. yoelii 17XNL strain followed by re-infections with the P. yoelii 17XL strain or the P. berghei ANKA strain than in mice with primary infections (F = 50.532 and 21.751, both P < 0.01). CONCLUSIONS The cure of murine Plasmodium infections with chloroquine does not affect the production of effective immune protections in mice during parasite re-infections. Following a primary infection, mice show a protection against re-infections with either homogeneous or heterogeneous Plasmodium strains, and a higher-level resistance to re-infections with homogeneous parasite strains is found than with heterogeneous strains.
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Affiliation(s)
- Y Wang
- Department of Microbiology and Parasitology, Bengbu Medical College, Anhui Key Laboratory of Infection and Immunity, Bengbu 233030, China
| | - X Yao
- ▵Co-first author.,Department of Microbiology and Parasitology, Bengbu Medical College, Anhui Key Laboratory of Infection and Immunity, Bengbu 233030, China
| | - M Y Tang
- Grade 2016, School of Clinical Medical Sciences, Bengbu Medical College, China
| | - L Liu
- Grade 2018, The Second School of Clinical Medical Sciences, Bengbu Medical College, China
| | - S H Song
- Grade 2018, School of Psychiatry, Bengbu Medical College, China
| | - Z Y Tao
- Department of Microbiology and Parasitology, Bengbu Medical College, Anhui Key Laboratory of Infection and Immunity, Bengbu 233030, China
| | - H Xia
- Department of Microbiology and Parasitology, Bengbu Medical College, Anhui Key Laboratory of Infection and Immunity, Bengbu 233030, China
| | - X L Chang
- Department of Microbiology and Parasitology, Bengbu Medical College, Anhui Key Laboratory of Infection and Immunity, Bengbu 233030, China
| | - Q Fang
- Department of Microbiology and Parasitology, Bengbu Medical College, Anhui Key Laboratory of Infection and Immunity, Bengbu 233030, China
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Huang Y, Hui PJ, Ding YF, Yan YY, Liu M, Kong LJ, Hu CH, Fang Q. [Analysis of factors related to recanalization of intramural hematoma-type carotid artery dissection]. Zhonghua Yi Xue Za Zhi 2020; 100:2612-2617. [PMID: 32892608 DOI: 10.3760/cma.j.cn112137-20200309-00665] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the factors related to recanalization of intramural hematoma-type carotid artery dissection (CAD). Methods: Retrospective analysis was performed on 56 patients (61 CADs) with intramural-hematoma type CAD confirmed by multimodal imaging examination based on cervical vascular ultrasound (CDU) in the Stroke Center of the First Affiliated Hospital of Suzhou University from August 2015 to May 2019. The clinical and imaging data were collected, and the time from onset to visit is bounded by 14 days. CDU follow-up was performed at 3, 6, and 12 months after the onset. According to the results of the 12-month follow-up, patients were divided into complete recanalization group and incomplete recanalization group. The clinical data, ultrasonic manifestations and drug treatment of patients between the two groups were compared. Multivariate logistic regression analysis was used to analyze the related factors affecting vascular recanalization. Results: Vascular recanalization: the rates of complete recanalization at 3, 6 and 12 months were 42.6% (26/61), 55.7% (34/61) and 59.0% (36/61), respectively. While among the 25 vessels in the incomplete recanalization group, 26.2% (16/61) showed residual stenosis and 14.8% (9/61) showed persistent occlusion. Comparison between the complete recanalization group and the incomplete recanalization group: the differences in the proportion of time from onset to visit ≤ 14 days, the echo type of intramural hematoma, and the proportion of vascular occlusion were statistically significant (all P<0.05). Multivariate logistic regression analysis showed that the time from onset to visit ≤14 days (OR=5.625, 95%CI: 1.302-24.293, P=0.021), and the hypoechoic intramural hematoma (OR=4.888, 95%CI: 1.304-18.320, P=0.019) were positively correlated with complete recanalization, while the dissection vascular occlusion (OR=0.234, 95%CI: 0.059-0.932, P=0.039) was negatively correlated with complete recanalization. Conclusions: CDU showed that hypoechoic intramural hematoma-type CAD treated with standard medications in the acute phase had a higher complete recanalization rate, while the recanalization rate of patients with dissecting vessel occlusion decreased. Early evaluation can provide a basis for clinical individualized treatment.
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Affiliation(s)
- Y Huang
- Department of Carotid and Cerebralvascular Ultrasonography, the First Affiliated Hospital of Soochow University, Suzhou 215006, China
| | - P J Hui
- Department of Carotid and Cerebralvascular Ultrasonography, the First Affiliated Hospital of Soochow University, Suzhou 215006, China
| | - Y F Ding
- Department of Carotid and Cerebralvascular Ultrasonography, the First Affiliated Hospital of Soochow University, Suzhou 215006, China
| | - Y Y Yan
- Department of Carotid and Cerebralvascular Ultrasonography, the First Affiliated Hospital of Soochow University, Suzhou 215006, China
| | - M Liu
- Department of Carotid and Cerebralvascular Ultrasonography, the First Affiliated Hospital of Soochow University, Suzhou 215006, China
| | - L J Kong
- Department of Carotid and Cerebralvascular Ultrasonography, the First Affiliated Hospital of Soochow University, Suzhou 215006, China
| | - C H Hu
- Department of Imaging, the First Affiliated Hospital of Soochow University, Suzhou 215006, China
| | - Q Fang
- Department of Neurology, the First Affiliated Hospital of Soochow University, Suzhou 215006, China
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Wu J, Fang Q, Liu F, Zhang X. Intraparotid node metastases in adults with parotid mucoepidermoid cancer: an indicator of prognosis? Br J Oral Maxillofac Surg 2020; 58:525-529. [DOI: 10.1016/j.bjoms.2019.10.323] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2019] [Accepted: 10/26/2019] [Indexed: 02/07/2023]
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Fang Q, Bellanti JA, Zheng SG. Advances on the role of the deleted in breast cancer (DBC1) in cancer and autoimmune diseases. J Leukoc Biol 2020; 109:449-454. [PMID: 32337788 DOI: 10.1002/jlb.6mr0320-086r] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 03/07/2020] [Accepted: 03/21/2020] [Indexed: 12/24/2022] Open
Abstract
DBC1 (deleted in breast cancer 1) is a human nuclear protein that modulates the activities of various proteins. Most of the research on DBC1 has focused on metabolism and epigenetics because it is a crucial endogenic inhibitor of deacetylase Sirtuin1 (SIRT1). In this review, we have discussed and summarized the new advances in DBC1 research, mostly focusing on its structure, regulatory function, and significance in cancer and autoimmune diseases.
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Affiliation(s)
- Qiannan Fang
- Department of Clinical Immunology, Third Affiliated Hospital of Sun Yat-Sen University, Guangzhou, China.,Department of Internal Medicine, Ohio State University College of Medicine and Wexner Medical Center, Columbus, Ohio, USA
| | - Joseph A Bellanti
- Department of Pediatrics and Microbiology-Immunology, Georgetown University Medical Center, Washington, District of Columbia, USA
| | - Song Guo Zheng
- Department of Internal Medicine, Ohio State University College of Medicine and Wexner Medical Center, Columbus, Ohio, USA
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Luo Y, Xue Y, Wang J, Dang J, Fang Q, Huang G, Olsen N, Zheng SG. Negligible Effect of Sodium Chloride on the Development and Function of TGF-β-Induced CD4 + Foxp3 + Regulatory T Cells. Cell Rep 2020; 26:1869-1879.e3. [PMID: 30759396 PMCID: PMC6948355 DOI: 10.1016/j.celrep.2019.01.066] [Citation(s) in RCA: 40] [Impact Index Per Article: 10.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/24/2018] [Revised: 12/05/2018] [Accepted: 01/16/2019] [Indexed: 12/18/2022] Open
Abstract
High-salt diets inhibit the suppressive function of thymus-derived natural regulatory T cells (tTreg). Transforming growth factor β (TGF-β)-induced ex vivo regulatory T cells (iTreg) comprise another Treg subset that exhibits similarities and differences with tTreg. Here, we demonstrate that iTregs are completely stable and fully functional under high salt conditions. High salt does not influence the development, differentiation, and functional activities of iTreg but affects Foxp3 stability and function of tTreg in vitro and in vivo. In addition, high salt does not significantly change the transcription profiles of the iTreg signature or pro-inflammatory genes. Therefore, we conclude that iTreg, unlike tTreg, are stable and functional in the presence of high salt. Our findings provide additional evidence that iTreg may have different biological features from tTreg and suggest a greater potential for clinical utility in patients with autoimmune diseases, in which the complicated role of environmental factors, including diet, must be considered.
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Affiliation(s)
- Yang Luo
- Department of Clinical Immunology, Third Affiliated Hospital at the Sun Yat-sen University, Guangzhou, China; Division of Rheumatology, Department of Medicine, Penn State College of Medicine, Hershey, PA, USA
| | - Youqiu Xue
- Department of Clinical Immunology, Third Affiliated Hospital at the Sun Yat-sen University, Guangzhou, China; Division of Rheumatology, Department of Medicine, Penn State College of Medicine, Hershey, PA, USA
| | - Julie Wang
- Division of Rheumatology, Department of Medicine, Penn State College of Medicine, Hershey, PA, USA
| | - Junlong Dang
- Department of Clinical Immunology, Third Affiliated Hospital at the Sun Yat-sen University, Guangzhou, China
| | - Qiannan Fang
- Department of Clinical Immunology, Third Affiliated Hospital at the Sun Yat-sen University, Guangzhou, China
| | - Gonghua Huang
- Shanghai Institute of Immunology, Shanghai Jiaotong University School of Medicine, Shanghai, China
| | - Nancy Olsen
- Division of Rheumatology, Department of Medicine, Penn State College of Medicine, Hershey, PA, USA
| | - Song Guo Zheng
- Division of Rheumatology, Department of Medicine, Penn State College of Medicine, Hershey, PA, USA.
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Zou Y, Zhuang C, Fang Q, Li F. Big Data and Artificial Intelligence: New Insight into the Estimation of Postmortem Interval. Fa Yi Xue Za Zhi 2020; 36:86-90. [PMID: 32250085 DOI: 10.12116/j.issn.1004-5619.2020.01.017] [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] [Subscribe] [Scholar Register] [Received: 01/07/2019] [Indexed: 11/30/2022]
Abstract
Abstract The estimation of postmortem interval (PMI) is a core issue in forensic practice. A large amount of time-dependent data can be produced in the decomposition process of a body, however, such multidimensional data cannot be comprehensively and effectively analyzed and utilized by any existing conventional PMI estimation method. As a rapidly developing information technology, artificial intelligence (AI) has significant advantages in big data processing, due to it's comprehensiveness, efficiency and automation. Some scholars have already applied it to researches on the estimation of PMI, showing it's significant advantages in terms of accuracy and development prospect. This article reviews the significance, mode and progress of application of AI in PMI estimation and provides some suggestions and prospects for future study.
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Affiliation(s)
- Y Zou
- Department of Pathology, Second Affiliated Hospital of Zhejiang University, School of Medicine, Hangzhou 310000, China
| | - C Zhuang
- Criminal Investigation Department, Fuzhou Police Office, Fuzhou 350000, China
| | - Q Fang
- Institute of Insect Sciences, Zhejiang University, Hangzhou 310000, China
| | - F Li
- Institute of Insect Sciences, Zhejiang University, Hangzhou 310000, China
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Li L, He Z, Huang X, Lin S, Wu J, Huang L, Wan Y, Fang Q. Chromosomal abnormalities detected by karyotyping and microarray analysis in twins with structural anomalies. Ultrasound Obstet Gynecol 2020; 55:502-509. [PMID: 30977228 DOI: 10.1002/uog.20287] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/31/2018] [Revised: 02/19/2019] [Accepted: 03/30/2019] [Indexed: 06/09/2023]
Abstract
OBJECTIVES To evaluate the incidence and types of chromosomal abnormalities detected in twins with structural anomalies and compare their distribution according to chorionicity and amnionicity and by structural-anomaly type. The added value of chromosomal microarray analysis (CMA) over conventional karyotyping in twins was also estimated. METHODS This was a single-center, retrospective analysis of 534 twin pregnancies seen over an 11-year period, in which one or both fetuses were diagnosed with congenital structural anomalies on ultrasound. The ultrasound findings and invasive prenatal diagnostic results were reviewed. Twin pregnancies were categorized as monochorionic monoamniotic (MCMA), monochorionic diamniotic (MCDA) or dichorionic diamniotic (DCDA). Chromosomal abnormalities detected by G-banding karyotyping and/or CMA were analyzed by chorionicity and amnionicity and by structural-anomaly type. RESULTS The 534 twin pairs analyzed comprised 25 pairs of MCMA, 112 pairs of MCDA and 397 pairs of DCDA twins. Of the 549 fetuses affected by structural anomalies, 432 (78.7%) underwent invasive prenatal testing and cytogenetic results were obtained. The incidence of overall chromosomal abnormalities in the DCDA fetuses (25.4%) was higher than that in the MCMA (3.7%) and MCDA (15.3%) fetuses. The incidence of aneuploidy was significantly higher in the DCDA group (22.8%) than in the MCMA (0.0%) and MCDA (12.4%) groups. The incidence of chromosomal abnormalities detected in fetuses, with anomalies of the cardiovascular, faciocervical, musculoskeletal, genitourinary and gastrointestinal systems, was higher in the DCDA group than in the MCDA group. In both the DCDA and MCDA groups, hydrops fetalis was associated with the highest incidence of chromosomal abnormality; of these fetuses, 67.6% had Turner syndrome (45,X). Pathogenic copy-number variations (CNVs) undetectable by karyotyping were identified by CMA in five (2.0%; 95% CI, 0.3-3.7%) DCDA fetuses. No pathogenic CNVs were found in MCMA and MCDA twins. CONCLUSIONS Dichorionic twins with structural anomalies have a higher risk of chromosomal abnormalities, especially aneuploidies, than do monochorionic twins. The incremental diagnostic yield of CMA over karyotyping seems to be lower (2.0%) in twins than that reported in singleton pregnancy. Copyright © 2019 ISUOG. Published by John Wiley & Sons Ltd.
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Affiliation(s)
- L Li
- Fetal Medicine Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Z He
- Fetal Medicine Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - X Huang
- Fetal Medicine Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - S Lin
- Fetal Medicine Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - J Wu
- Fetal Medicine Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - L Huang
- Fetal Medicine Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Y Wan
- Fetal Medicine Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
| | - Q Fang
- Fetal Medicine Center, Department of Obstetrics and Gynecology, The First Affiliated Hospital of Sun Yat-sen University, Guangzhou, China
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Fang Q, Deng Y, Liang R, Mei Y, Hu Z, Wang J, Sun J, Zhang X, Bellanti JA, Zheng SG. CD19 +CD24 hiCD38 hi regulatory B cells: a potential immune predictive marker of severity and therapeutic responsiveness of hepatitis C. Am J Transl Res 2020; 12:889-900. [PMID: 32269721 PMCID: PMC7137049] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2019] [Accepted: 02/20/2020] [Indexed: 06/11/2023]
Abstract
OBJECTIVES Hepatitis C virus (HCV) infection is associated with abnormal immune responses. Since regulatory T (Tregs) and B (Bregs) cells modulate the progression of infectious diseases, this study aimed at examining how these cells are involved with the development of HCV infection. METHODS The frequencies of circulating Bregs and Tregs were characterized using flow cytometry. Both the association and dynamic changes of these cells with related clinical parameters were analyzed after Direct-Acting Antiviral (DAA) agent treatments. Additionally, both regulatory B and T and naïve B and T cells were sorted and stimulated with healthy or HCV sera in vitro. RESULTS Bregs frequency in HCV-infected patients increased significantly and were positively correlated with levels of sera HCV RNA load, Alanine aminotransferase (AST) and total bilirubin (TBILI). Additionally, the increased Bregs returned to normal levels after DAA treatment. However, Tregs increased markedly in patients with HCV-cirrhosis and were significantly associated with Aspartate aminotransferase to Platelet Ratio Index (APRI) and Fibrosis 4 (FIB-4) scores. Furthermore, HCV sera doesn't expand either Tregs or Bregs, however, it does induce the IL-10 expression in B cells although it fails to induce FOXP3 expression in CD4+ T cells. CONCLUSIONS Increased Bregs not only may be associated with poor viral eradication and liver injury but also may provide a predictive marker of HCV disease therapeutic efficacy following DAA-treatment. HCV sera may selectively induce Bregs. Tregs probably do not control disease status in the early stages but may contribute to the progression of liver fibrosis in the late stages of HCV infection.
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Affiliation(s)
- Qiannan Fang
- Department of Clinical Immunology, The Third Affiliated Hospital of Sun Yat-Sen UniversityGuangzhou 510060, Guangdong, China
- Department of Internal Medicine, Ohio State University College of Medicine and Wexner Medical CenterColumbus, OH 43210, United States
| | - Yanan Deng
- Department of Clinical Immunology, The Third Affiliated Hospital of Sun Yat-Sen UniversityGuangzhou 510060, Guangdong, China
| | - Rongzhen Liang
- Department of Clinical Immunology, The Third Affiliated Hospital of Sun Yat-Sen UniversityGuangzhou 510060, Guangdong, China
| | - Yongyu Mei
- Department of Infectious Diseases, The Third Affiliated Hospital of Sun Yat-Sen UniversityGuangzhou 510060, Guangdong, China
| | - Zhaoxia Hu
- Department of Infectious Diseases, The Third Affiliated Hospital of Sun Yat-Sen UniversityGuangzhou 510060, Guangdong, China
| | - Julie Wang
- Department of Internal Medicine, Ohio State University College of Medicine and Wexner Medical CenterColumbus, OH 43210, United States
| | - Jianbo Sun
- Guanghua School of Stomatology, Hospital of Stomatology, Sun Yat-Sen UniversityGuangzhou 510060, Guangdong, China
| | - Xiaohong Zhang
- Department of Infectious Diseases, The Third Affiliated Hospital of Sun Yat-Sen UniversityGuangzhou 510060, Guangdong, China
| | - Joseph A Bellanti
- Department of Pediatrics and Microbiology-Immunology, Georgetown University Medical CenterWashington, DC, United States
| | - Song Guo Zheng
- Department of Internal Medicine, Ohio State University College of Medicine and Wexner Medical CenterColumbus, OH 43210, United States
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Liu X, Wu H, Qu Y, Xu Z, Sheng J, Fang Q. Safety assessment of Generation Ⅲ nuclear power plant buildings subjected to commercial aircraft crash Part I: FE model establishment and validations. Nuclear Engineering and Technology 2020. [DOI: 10.1016/j.net.2019.07.014] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Qu Y, Wu H, Xu Z, Liu X, Dong Z, Fang Q. Safety assessment of Generation III nuclear power plant buildings subjected to commercial aircraft crash Part II: Structural damage and vibrations. Nuclear Engineering and Technology 2020. [DOI: 10.1016/j.net.2019.07.015] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Ke RD, Tang AZ, Tang XL, Gong L, Fang Q, Tan SH. [Clinical application of HRCT three-dimensional reconstruction in traumatic ossicular chain interruption]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2020; 33:1129-1133. [PMID: 31914258 DOI: 10.13201/j.issn.1001-1781.2019.12.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 05/16/2019] [Indexed: 11/12/2022]
Abstract
Objective:To investigate the clinical value of HRCT three-dimensional reconstruction technique in traumatic auditory chain traumatic fracture. Method:The clinical data of 14 patients with traumatic ear ossicular chain interruption were analyzed retrospectively. To evaluate the injury site and degree of the auditory chain before surgery, all the 14 patients underwent,HRCT scanning and three-dimensional reconstruction. The reconstructed auditory chain was observed from multiple angles and compared with the surgical exploration results under microscope. Result:The coincidence rate between ossicular chain injury observed by temporal bone HRCT scan before operation and ossicular chain injury observed during surgery was only 28.57%, the coincidence rate between ossicular chain injury observed during surgery and ossicular chain injury observed by three-dimensional reconstruction is 85.71%.Therefore, three-dimensional reconstruction imaging technique could give the doctor more clearly and stereoscopic images for the destruction of ossicular chain. Conclusion:Preoperative three-dimensional reconstruction can display and diagnosis of auditory ossicular chain destruction more clearly. It can be used to accurately evaluate auditory ossicular chain pathological changes, to develop individualized surgical plans and assess the risk of surgery.
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Affiliation(s)
- R D Ke
- Department of Otolaryngology Head and Neck Surgery,the First Affiliated Hospital of Guangxi Medical University,Nanning,530021,China
| | - A Z Tang
- Department of Otolaryngology Head and Neck Surgery,the First Affiliated Hospital of Guangxi Medical University,Nanning,530021,China
| | - X L Tang
- Department of Otolaryngology Head and Neck Surgery,the First Affiliated Hospital of Guangxi Medical University,Nanning,530021,China
| | - L Gong
- Department of Otolaryngology Head and Neck Surgery,the First Affiliated Hospital of Guangxi Medical University,Nanning,530021,China
| | - Q Fang
- Department of Otolaryngology Head and Neck Surgery,the First Affiliated Hospital of Guangxi Medical University,Nanning,530021,China
| | - S H Tan
- Department of Otolaryngology Head and Neck Surgery,the First Affiliated Hospital of Guangxi Medical University,Nanning,530021,China
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Lu D, Fang Q, Yu X, Han X, Wang J, Yu H, Zhang H. Power scaling of the self-frequency-doubled quasi-two-level Yb:YCOB laser with a 30% slope efficiency. Opt Lett 2019; 44:5157-5160. [PMID: 31674955 DOI: 10.1364/ol.44.005157] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/16/2019] [Accepted: 09/27/2019] [Indexed: 06/10/2023]
Abstract
The lab-on-chip integration of photonic devices has been attracting increasing attention recently. Multifunctional materials provide natural platforms for the desirable performance by the coupling of different functionalities. The insufficient coupling efficiency of the laser and nonlinear processes in self-frequency-doubled (SFD) lasers is the limiting factor for the output power and further practical applications. Here we demonstrate a SFD Yb3+-doped calcium yttrium oxoborate (Yb:YCOB) crystal laser with an unprecedented slope efficiency of 30% and output power of 6.2 W at 513 nm. The successful realization of this laser operating in a quasi-two-level configuration is based on enhanced coupling of the laser and frequency-doubling processes using a monolithic configuration, benefiting from an ultimately small laser quantum defect, the anisotropic gain cross sections, and the high effective nonlinearity of the monoclinic YCOB outside the principal planes. Solid-state lasers in the spectral range around 510 nm are scarce, and the results not only present a significant advancement in the field of SFD lasers, but also pave the way for future applications of such green lasers, especially in areas such as medical treatment, daily life, and scientific investigations.
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Fang Q, Wu XL, Wang FF. [Organ donation and critical care medicine]. Zhonghua Yi Xue Za Zhi 2019; 99:2733-2736. [PMID: 31550795 DOI: 10.3760/cma.j.issn.0376-2491.2019.35.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- Q Fang
- Department of Critical Care Medicine, the First Affiliated Hospital, Zhejiang University, Hangzhou 310003, China
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Xia Q, Wang X, Zhang Z, Fang Q, Hu C. Relationship between CT angiography-derived collateral status and CT perfusion-derived tissue viability. Clin Radiol 2019; 74:956-961. [PMID: 31495547 DOI: 10.1016/j.crad.2019.07.024] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/16/2018] [Accepted: 07/31/2019] [Indexed: 11/16/2022]
Abstract
AIM To explore the relationship between computed tomography (CT) angiography (CTA)-derived collateral status and CT perfusion (CTP)-derived tissue viability. MATERIALS AND METHODS Patients having middle cerebral artery (MCA) M1/M2 segment and/or internal carotid artery (ICA) occlusion and within 12 hours of onset were included. Collateral was graded from 0 to 3 on maximum intensity projection (MIP) images of CTA. The area with relative cerebral blood flow (rCBF) <30% or time-to-maximum (Tmax) >10 or >12 or >14 seconds was defined as the infarct core, and Tmax >6 seconds as the penumbra. Kruskal-Wallis and Spearman's correlation tests were performed to assess the correlation between collateral grade and infarct size or mismatch ratio. RESULTS Eighty-three patients were enrolled and 52 of them met the inclusion criteria. Infarct size defined by rCBF <30% or Tmax >10 or >12 or >14 seconds and mismatch ratios were significantly different among the four groups. The correlation between collateral grades and infarct core using rCBF <30% (ρ=-0.814, p<0.01) was better than that defined by Tmax >10s, >12s or >14s. Mismatch ratio for the infarct core defined by rCBF <30% (ρ=0.945, p<0.01) had the best correlation with collateral grades. CONCLUSION Patients with good collaterals show a smaller infarct core and higher mismatch ratio. Infarct size defined by rCBF <30% and mismatch ratio defined by rCBF <30% and Tmax >6 seconds appear to be more correlated with collaterals in AIS patients.
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Affiliation(s)
- Q Xia
- Department of Radiology, Affiliated Hangzhou First People's Hospital, Zhejiang University School of Medicine, Hangzhou 310006, China
| | - X Wang
- Department of Radiology, The First Affiliated Hospital of Soochow University, Soochow 215006, China
| | - Z Zhang
- Department of Radiology, The First Affiliated Hospital of Soochow University, Soochow 215006, China
| | - Q Fang
- Department of Neurology, The First Affiliated Hospital of Soochow University, Soochow 215006, China
| | - C Hu
- Department of Radiology, The First Affiliated Hospital of Soochow University, Soochow 215006, China.
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Zhang J, Li H, Bai N, Xu Y, Song Q, Zhang L, Wu G, Chen S, Hou X, Wang C, Wei L, Xu A, Fang Q, Jia W. Decrease of FGF19 contributes to the increase of fasting glucose in human in an insulin-independent manner. J Endocrinol Invest 2019; 42:1019-1027. [PMID: 30852757 DOI: 10.1007/s40618-019-01018-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/24/2018] [Accepted: 02/06/2019] [Indexed: 12/30/2022]
Abstract
PURPOSE The ileum-derived fibroblast growth factor 19 (FGF19) plays key roles in hepatic glucose homeostasis in animals in an insulin-independent manner. Here, we analyzed the association of FGF19 with glucose effectiveness (GE, the insulin-independent glucose regulation), as well as hepatic glucose production (HGP) in Chinese subjects. METHODS GE was measured by frequently sampled intravenous glucose tolerance test (FSIVGTT) in normal glucose tolerance (NGT), isolated-impaired glucose tolerance (I-IGT), and isolated-impaired fasting glucose (I-IFG) subjects. The oral glucose tolerance test-derived surrogate of GE (oGE) was determined in NGT, I-IFG, combined glucose intolerance (CGI), and type 2 diabetes (T2DM) subjects. HGP was assessed by labeled ([3-3H]-glucose) hyperinsulinemic-euglycemic clamp in NGT subjects. Insulin secretion and sensitivity were calculated by the hyperglycemic and hyperinsulinemic-euglycemic clamps in a subgroup of NGT, I-IGT, and I-IFG subjects. Serum FGF19 levels were determined by ELISA. RESULTS FGF19 positively correlated with GE (r = 0.29, P = 0.004) as determined by FSIVGTT. The result was further confirmed by oGE (r = 0.261, P < 0.001). FGF19 was negatively associated with FPG (r = - 0.228, P = 0.025), but the association no longer existed after adjusting for GE (r = - 0.177, P = 0.086). FGF19 was negatively associated with basal HGP (r = - 0.697, P = 0.006). However, the correlation between FGF19 and insulin secretion and sensitivity were not found. CONCLUSIONS FGF19 levels are associated positively with GE and negatively with HGP. The increase of FPG in human is at least partially due to the decrease of FGF19 in an insulin-independent manner.
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Affiliation(s)
- J Zhang
- Shanghai Key Laboratory of Diabetes Mellitus, Department of Endocrinology and Metabolism, Shanghai Diabetes Institute, Shanghai Clinical Center for Diabetes, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai, 200233, China
- Department of Medicine, Shanghai Jiao Tong University School of Medicine, Shanghai, China
| | - H Li
- Shanghai Key Laboratory of Diabetes Mellitus, Department of Endocrinology and Metabolism, Shanghai Diabetes Institute, Shanghai Clinical Center for Diabetes, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai, 200233, China
| | - N Bai
- Shanghai Key Laboratory of Diabetes Mellitus, Department of Endocrinology and Metabolism, Shanghai Diabetes Institute, Shanghai Clinical Center for Diabetes, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai, 200233, China
| | - Y Xu
- Shanghai Key Laboratory of Diabetes Mellitus, Department of Endocrinology and Metabolism, Shanghai Diabetes Institute, Shanghai Clinical Center for Diabetes, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai, 200233, China
| | - Q Song
- Shanghai Key Laboratory of Diabetes Mellitus, Department of Endocrinology and Metabolism, Shanghai Diabetes Institute, Shanghai Clinical Center for Diabetes, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai, 200233, China
| | - L Zhang
- Shanghai Key Laboratory of Diabetes Mellitus, Department of Endocrinology and Metabolism, Shanghai Diabetes Institute, Shanghai Clinical Center for Diabetes, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai, 200233, China
| | - G Wu
- Shanghai Key Laboratory of Diabetes Mellitus, Department of Endocrinology and Metabolism, Shanghai Diabetes Institute, Shanghai Clinical Center for Diabetes, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai, 200233, China
| | - S Chen
- Shanghai Key Laboratory of Diabetes Mellitus, Department of Endocrinology and Metabolism, Shanghai Diabetes Institute, Shanghai Clinical Center for Diabetes, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai, 200233, China
| | - X Hou
- Shanghai Key Laboratory of Diabetes Mellitus, Department of Endocrinology and Metabolism, Shanghai Diabetes Institute, Shanghai Clinical Center for Diabetes, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai, 200233, China
| | - C Wang
- Shanghai Key Laboratory of Diabetes Mellitus, Department of Endocrinology and Metabolism, Shanghai Diabetes Institute, Shanghai Clinical Center for Diabetes, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai, 200233, China
| | - L Wei
- Shanghai Key Laboratory of Diabetes Mellitus, Department of Endocrinology and Metabolism, Shanghai Diabetes Institute, Shanghai Clinical Center for Diabetes, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai, 200233, China
| | - A Xu
- State Key Laboratory of Pharmaceutical Biotechnology, University of Hong Kong, Pokfulam, Hong Kong, China
- Department of Medicine, University of Hong Kong, Pokfulam, Hong Kong, China
| | - Q Fang
- Shanghai Key Laboratory of Diabetes Mellitus, Department of Endocrinology and Metabolism, Shanghai Diabetes Institute, Shanghai Clinical Center for Diabetes, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai, 200233, China.
| | - W Jia
- Shanghai Key Laboratory of Diabetes Mellitus, Department of Endocrinology and Metabolism, Shanghai Diabetes Institute, Shanghai Clinical Center for Diabetes, Shanghai Jiao Tong University Affiliated Sixth People's Hospital, 600 Yishan Road, Shanghai, 200233, China.
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Pan W, Li W, Zhao J, Huang Z, Zhao J, Chen S, Wang C, Xue Y, Huang F, Fang Q, Wang J, Brand D, Zheng SG. lncRNA-PDPK2P promotes hepatocellular carcinoma progression through the PDK1/AKT/Caspase 3 pathway. Mol Oncol 2019; 13:2246-2258. [PMID: 31368655 PMCID: PMC6763783 DOI: 10.1002/1878-0261.12553] [Citation(s) in RCA: 86] [Impact Index Per Article: 17.2] [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: 02/04/2019] [Revised: 04/29/2019] [Accepted: 07/30/2019] [Indexed: 12/14/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is a malignancy with one of the worst prognoses. Long noncoding RNA (lncRNA) are emerging as an important regulator of gene expression and function, leading to the development of cancer. The aim of this study was to determine the relationship between lncRNA and HCC and to further guide clinical therapy. lncRNA in HCC and adjacent tissues were screened, and the correlation between lncRNA-PDPK2P expression in liver tissues and the pathological characteristics and severity of HCC was assessed. The effects of PDPK2P on HCC proliferation, apoptosis, metastasis, and invasion were also systematically investigated via CCK-8 assay, flow cytometry, scratch wound healing, and transwell assay, respectively. The relationship between PDPK2P and PDK1 was verified by RNA pull-down, rescue experiments and western blot. lncRNA-PDPK2P was highly expressed in HCC tissues with a distinct positive correlation between PDPK2P and PDK1, and the upregulation was clinically associated with a larger tumor embolus, low differentiation, and poor survival. Mechanistically, lncRNA-PDPK2P interacted with PDK1 and promoted HCC progression through the PDK1/AKT/caspase 3 signaling pathway. lncRNA-PDPK2P can promote HCC progression, suggesting it may be a clinically valuable biomarker and serve as a molecular target for the diagnosis, prognosis, and therapy of hepatocellular carcinoma.
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Affiliation(s)
- Weidong Pan
- Department of Hepatobiliary Surgery, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Wen Li
- Department of Hepatobiliary Surgery, the Second Affiliated Hospital of Nanchang University, China
| | - Jun Zhao
- Department of Clinical Immunology, Third Hospital of Sun Yat-sen University, Guangzhou, China
| | - Zhiyi Huang
- Department of Clinical Immunology, Third Hospital of Sun Yat-sen University, Guangzhou, China
| | - Jingyuan Zhao
- Department of Hepatobiliary Surgery, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Shuxian Chen
- Department of Hepatobiliary Surgery, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Chusi Wang
- Department of Hepatobiliary Surgery, The Third Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Youqiu Xue
- Department of Clinical Immunology, Third Hospital of Sun Yat-sen University, Guangzhou, China.,Department of Internal Medicine, Ohio State University College of Medicine, Columbus, OH, USA
| | - Feng Huang
- Department of Clinical Immunology, Third Hospital of Sun Yat-sen University, Guangzhou, China
| | - Qiannan Fang
- Department of Clinical Immunology, Third Hospital of Sun Yat-sen University, Guangzhou, China
| | - Julie Wang
- Department of Internal Medicine, Ohio State University College of Medicine, Columbus, OH, USA
| | - David Brand
- Research Service, Memphis VA Medical Center, Memphis, TN, USA
| | - Song Guo Zheng
- Department of Internal Medicine, Ohio State University College of Medicine, Columbus, OH, USA
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Liu DB, Yang JS, Lu QB, Zhu ZF, Fang Q. Effect of NT-3 on infection-induced memory impairment of neonatal rats. Eur Rev Med Pharmacol Sci 2019; 23:2182-2187. [PMID: 30915764 DOI: 10.26355/eurrev_201903_17264] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE To explore the effect of neurotrophin-3 (NT-3) messenger ribonucleic acid (mRNA) in the hippocampus on infection-induced memory impairment of neonatal rats. MATERIALS AND METHODS 80 female Sprague-Dawley (SD) rats in the neonatal stage were selected to establish memory impairment model by bacterial meningitis infection. Rats were randomly divided into experimental group (n=40) and control group (n=40). Rats in experimental group were injected with β-amyloid precursor protein 319-335 peptide APP17p into brain tissue to up-regulate the expression of NT-3, and the rats in control group didn't receive treatment. Behavioral changes of rats were observed in Morris water maze and passive avoidance experiment. Apoptosis of nerve cells was detected by terminal deoxynucleotidyl transferase (TdT)-mediated dUTP nick end labeling (TUNEL) method and Fluoro-Jade B method. NT-3 mRNA expression level was measured via reverse transcription polymerase chain reaction (RT-PCR). RESULTS NT-3 expression level in experimental group was higher than that in control group (p<0.05). Apoptosis rate of nerve cells in experimental group was lower than that in control group, but the learning and memory ability of rats in experimental group was better than that in control group (p<0.05). CONCLUSIONS Reduced NT-3 expression level may be correlated with the occurrence of meningitis because NT-3 can suppress nerve cell apoptosis and ameliorate learning and memory impairment to a certain extent to exert neuroprotective effects.
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Affiliation(s)
- D-B Liu
- Department of Neurology, The Affiliated Jiangyin Hospital of Southeast University of Medical College, Jiangyin, Jiangsu, China.
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Yang L, Diao SS, Ding YP, Huang SJ, Sun T, Lu Y, Fang Q, Cai XY, Kong Y, Xu Z. [Efficacy and mechanism of loading dose clopidogrel in patients with transient ischemic attack and minor stroke]. Zhonghua Yi Xue Za Zhi 2019; 99:349-353. [PMID: 30772975 DOI: 10.3760/cma.j.issn.0376-2491.2019.05.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To assess outcome, safety and possible mechanism of loading dose clopidogrel in patients with transient ischemic attack (TIA) and minor stroke. Methods: We reviewed patients with confirmed TIA and minor stroke admitted between July 2016 and December 2017 into the First Affiliated Hospital of Soochow University. Loss-of-function allele carriers of CYP2C19 were included and randomly divided into loading dose group (first dose of 300 mg clopidogrel) and standard dose group (first dose of 75 mg clopidogrel), 100 mg aspirin was gave at the same time, followed by aspirin 100 mg/d plus clopidogrel 75 mg/d maintaining for 20 days. Platelet aggregation (maximum aggregation ratio, MAR) induced by Adenosine diphosphate (ADP) was examined before and 3 days after administration. The National Institutes of Health Stroke Scale (NIHSS) score method was employed to assess the NIHSS scores before and after treatment in each group of patients; the modified Rankin Scale (mRS) was used to assess the 3-month functional outcome. Results: There was no significant difference in baseline data between the two groups (P>0.05).The proportion of early neurological function improvement in the two groups was 75.0% and 54.8%, and the difference was statistically significant (χ(2)=4.498, P=0.034). The 3-month prognosis was 79.5% and 61.3%, and the difference was statistically significant (χ(2)=4.000, P=0.045). Adverse events: 1 case in the loading dose group, 1 case in the standard dose group, the difference was not statistically significant (2.3% vs 1.6%, χ(2)=0.061, P=0.806). After 3 days of antiplatelet therapy, the MAR of the loading dose group decreased (11%±8%), and the MAR of the standard dose group decreased (9%±4%), the difference was statistically significant (P=0.013).In the loading dose group, there were 32 (72.7%)CYP2C19*2 carriers and 42 (95.5%)CYP2C19*2+*3 carriers; early neurological function improvement in 33 cases, accounting for 93.8% and 76.2%, respectively, and the difference was statistically significant (χ(2)=4.122, P=0.042). There were 35 patients with good prognosis in 3 months, accounting for 96.9% and 81.0%, respectively. The difference was statistically significant (χ(2)=4.310, P=0.038); MAR of CYP2C19*2 carrier was decreased (15%±5%), and MAR of CYP2C19*2+*3 carrier was decreased (12%±8%). The difference was statistically significant (P=0.039). Conclusions: Loading dose clopidogrel can improve the clinical prognosis of minor stroke/TIA without increasing the risk of bleeding. Loading dose clopidogrel may improve the prognosis of minor stroke/TIA by decreasing MAR of CYP2C19*2 carriers.
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Affiliation(s)
- L Yang
- Department of Neurology, Suqian First Hospital, Suqian 223800, China
| | - S S Diao
- Department of Neurology, the First Affiliated Hospital of Soochow University, Suzhou 215000, China
| | - Y P Ding
- Department of Neurology, the First Affiliated Hospital of Soochow University, Suzhou 215000, China
| | - S J Huang
- Department of Neurology, the First Affiliated Hospital of Soochow University, Suzhou 215000, China
| | - T Sun
- Department of Neurology, the First Affiliated Hospital of Soochow University, Suzhou 215000, China
| | - Y Lu
- Department of Neurology, the First Affiliated Hospital of Soochow University, Suzhou 215000, China
| | - Q Fang
- Department of Neurology, the First Affiliated Hospital of Soochow University, Suzhou 215000, China
| | - X Y Cai
- Department of Neurology, the First Affiliated Hospital of Soochow University, Suzhou 215000, China
| | - Y Kong
- Department of Neurology, the First Affiliated Hospital of Soochow University, Suzhou 215000, China
| | - Z Xu
- Department of Neurology, the First Affiliated Hospital of Soochow University, Suzhou 215000, China
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Zhang T, Wu H, Huang T, Sheng J, Fang Q, Zhang F. Penetration depth of RC panels subjected to the impact of aircraft engine missiles. Nuclear Engineering and Design 2018. [DOI: 10.1016/j.nucengdes.2018.04.025] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Ma GG, Fang LG, Gao P, Cheng ZW, Chen TB, Lin X, Cheng KA, Deng H, Fang Q. [Association between the ratio of early diastolic transmitral velocity to early diastolic mitral annular velocity and invasive measured left atrial pressure in patients with atrial fibrillation and preserved left ventricular ejection fraction]. Zhonghua Xin Xue Guan Bing Za Zhi 2018; 46:292-297. [PMID: 29747325 DOI: 10.3760/cma.j.issn.0253-3758.2018.04.008] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To evaluate the association between the ratio of early diastolic transmitral velocity to early diastolic mitral annular velocity (E/E') and left atrial pressure (LAP) estimated from invasive catheter measurements in patients with atrial fibrillation (AF). Methods: A total of 46 consecutive patients with non-valvular AF and preserved left ventricular ejection fraction (LVEF) admitted in our department to receive the first radiofrequency ablation from May to July 2017 were included. All patients underwent echocardiography at 24-48 hours before radiofrequency ablation, and LAP was invasively measured during the ablation procedure. According to mean LAP, patients were divided into 2 groups of normal LAP (LAP≤12 mmHg(1 mmHg=0.133 kPa, n=31) and elevated LAP (LAP>12 mmHg, n=15). Linear correlation analysis was used to evaluate the relationship between E/E' and LAP. Results: E/E' correlated well with LAP (septal E/E' (E/E'(sep)), r= 0.397, P=0.006; lateral E/E' (E/E'(lat)), r=0.433, P=0.003; mean E/E' (E/E'(mean)), r=0.431, P=0.003). Using receiver operating characteristic analysis, the optimal cut-off for E/E'(sep) was 12.5 (sensitivity 73.3%, specificity 67.7%), E/E'(lat) was 10.8 (sensitivity 80.0%, specificity 77.4%), E/E'(mean) was 11.0 (sensitivity 86.7%, specificity 64.5%) to predict mean LAP>12 mmHg. Conclusion: E/E', especially the E/E'(lat), is positively correlated with LAP in patients with AF and preserved LVEF, and may be used to estimate the diastolic function in AF patients with preserved LVEF.
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Affiliation(s)
- G G Ma
- Department of Cardiology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100730, China
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Saunders C, Watts L, Allen W, Kennedy K, Fang Q, Chin L, Curatolo A, Zilkens R, Chin S, Dessauvagie B, Latham B, Kennedy B. P2 Importance of breast tumour margins and how to measure them effectively. Breast 2018. [DOI: 10.1016/j.breast.2018.02.006] [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: 10/17/2022] Open
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38
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Tang J, Fang Q, Lu M, Shao R, Shen J, Lu L, Niu D. The Effect of Hydrated Sodium Calcium Aluminosilicate on Fatty Liver and the Composition of the Intestinal Microbiota in Overfed Landes Geese. Braz J Poult Sci 2018. [DOI: 10.1590/1806-9061-2017-0499] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/10/2023]
Affiliation(s)
- J Tang
- Zhejiang University, China; Zhejiang Academy of Agricultural Sciences, China
| | - Q Fang
- Zhejiang Academy of Agricultural Sciences, China
| | - M Lu
- Kaier Environmental Technology Co., Ltd. of Hangzhou, China
| | - R Shao
- Rongyao goose industry Co., Ltd of Changxing, China
| | - J Shen
- Zhejiang Academy of Agricultural Sciences, China
| | - L Lu
- Zhejiang Academy of Agricultural Sciences, China
| | - D Niu
- Zhejiang University, China
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Liu Z, Fang Q, Zuo J, Minhas V, Wood C, Zhang T. The world‐wide incidence of Kaposi's sarcoma in the
HIV
/
AIDS
era. HIV Med 2018; 19:355-364. [DOI: 10.1111/hiv.12584] [Citation(s) in RCA: 33] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/06/2017] [Indexed: 12/15/2022]
Affiliation(s)
- Z Liu
- Department of Epidemiology School of Public Health Fudan University Shanghai China
- Key Laboratory of Public Health Safety (Fudan University) Ministry of Education Shanghai China
| | - Q Fang
- Department of Epidemiology School of Public Health Fudan University Shanghai China
- Key Laboratory of Public Health Safety (Fudan University) Ministry of Education Shanghai China
| | - J Zuo
- Department of Epidemiology School of Public Health Fudan University Shanghai China
- Key Laboratory of Public Health Safety (Fudan University) Ministry of Education Shanghai China
| | - V Minhas
- Nebraska Center of Virology and the School of Biological Sciences University of Nebraska‐Lincoln Lincoln NE USA
| | - C Wood
- Nebraska Center of Virology and the School of Biological Sciences University of Nebraska‐Lincoln Lincoln NE USA
| | - T Zhang
- Department of Epidemiology School of Public Health Fudan University Shanghai China
- Key Laboratory of Public Health Safety (Fudan University) Ministry of Education Shanghai China
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Goh SC, Luan Y, Wang X, Du H, Chau C, Schellhorn HE, Brash JL, Chen H, Fang Q. Polydopamine–polyethylene glycol–albumin antifouling coatings on multiple substrates. J Mater Chem B 2018; 6:940-949. [DOI: 10.1039/c7tb02636f] [Citation(s) in RCA: 37] [Impact Index Per Article: 6.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
Polydopamine–PEG coatings on different substrates: effects of PDA layer properties on PEG grafting and anti-biofouling properties.
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Affiliation(s)
- S. C. Goh
- School of Biomedical Engineering
- McMaster University
- Hamilton
- Canada
| | - Y. Luan
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University
- Suzhou
- P. R. China
| | - X. Wang
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University
- Suzhou
- P. R. China
| | - H. Du
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University
- Suzhou
- P. R. China
| | - C. Chau
- School of Biomedical Engineering
- McMaster University
- Hamilton
- Canada
| | | | - J. L. Brash
- School of Biomedical Engineering
- McMaster University
- Hamilton
- Canada
| | - H. Chen
- College of Chemistry, Chemical Engineering and Materials Science, Soochow University
- Suzhou
- P. R. China
| | - Q. Fang
- School of Biomedical Engineering
- McMaster University
- Hamilton
- Canada
- Department of Engineering Physics, McMaster University
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Fang Q, Yu H, Zhang H, Zhang G, Wang J, Wu Y. Output power enhancement of a self-frequency-doubled laser by selective excitation of inequivalent active centers in La 2CaB 10O 19 (Nd:LCB) crystal. Opt Lett 2017; 42:4861-4864. [PMID: 29216129 DOI: 10.1364/ol.42.004861] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/13/2017] [Accepted: 10/10/2017] [Indexed: 06/07/2023]
Abstract
We demonstrated the output power enhancement of a self-frequency-doubled laser with Nd3+-doped lanthanum calcium borate La2CaB10O19 (Nd:LCB) crystals by selective excitation of its inequivalent active centers. When the Nd3+ ions located in the Ca2+ sites were excited in the Nd:LCB crystal, the fundamental laser at the wavelength of 1066 nm was successfully realized, which can keep the self-frequency-doubled wavelength away from the self-absorption peak of Nd3+ ions at about 523 nm. By optimizing the key parameters, the maximum output power of 801 mW was achieved with the frequency-doubling at the wavelength of 533 nm, and the enhancement of output power was about 7.8 times compared with the results by excitation of Nd3+ ions in the La3+ sites. Up to now, this output power of the self-frequency-doubled laser represents the highest one in the Nd:LCB crystal, and the efficient emission at 533 nm should have promising applications in the visible range, such as laser displays, optical data storage, laser printing, etc. Meanwhile, the selective excitation of inequivalent active ions and the enhancement of the self-frequency-doubled laser may provide some inspiration for the investigation of multi-functional materials.
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Tang L, Xu W, Li CG, Hou F, Feng XQ, Wang H, Li XJ, Li WL, Liu JP, Sun LR, Wang SH, Jin J, Fang Q, Luke KH, Poon MC, Blanchette VS, Usuba K, Young NL, Wu R. Describing the quality of life of boys with haemophilia in China: Results of a multicentre study using the CHO-KLAT. Haemophilia 2017; 24:113-119. [PMID: 28922525 DOI: 10.1111/hae.13349] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 08/21/2017] [Indexed: 11/30/2022]
Abstract
INTRODUCTION The treatment of haemophilia varies across countries and across regions within some countries. Similar variation has been observed in health-related quality of life (HR-QoL). Relatively little is known about the HR-QoL of boys with haemophilia in China. AIM The aim of this study was to describe the HR-QoL of boys with haemophilia in China using the Canadian Haemophilia Outcomes-Kids Life Assessment Tool (CHO-KLAT). METHODS Boys (4-18 years of age) with haemophilia and their parents were enroled in a cross-sectional study. All parents/guardians of study subjects were requested to complete a CHO-KLAT questionnaire during a clinic visit, and report on several other clinical and socioeconomic factors in the past year. Boys who were > 7 years also completed the CHO-KLAT. RESULTS A total of 269 parents of boys with haemophilia, from 13 hospitals in 12 provinces, were enroled during 2014. The boys ranged from 4.0 to 17.9 years of age; 91% had haemophilia A, most had moderate (52%) or severe (36%) disease, and most were receiving sub-optimal on-demand therapy or low-dose prophylactic therapy. Child self-report CHO-KLAT scores were available for 171 boys ≥7 years of age and ranged from 24.2 to 85.3 with a mean of 57.6 (n = 171). Parent proxy-reported CHO-KLAT scores ranged from 25.0 to 88.7 with a mean of 55.1 (n = 269). CONCLUSION HR-QoL scores in boys with haemophilia in China were substantially lower than reported from Canadian and European boys with haemophilia. Longer term prospective studies are required to examine the factors impacting the HR-QoL for boys with haemophilia in China.
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Affiliation(s)
- L Tang
- Hematology and Oncology Center, Beijing Children's Hospital Affiliated to Capital Medical University, Beijing, China
| | - W Xu
- Hematology Department, School of Medicine, Children's Hospital of Zhejiang University, Hangzhou, China
| | - C G Li
- Hematology& Oncology Department, Shenzhen Children's Hospital, Shenzhen, China
| | - F Hou
- Hematology Department, Shanxi Children's Hospital, Taiyuan, China
| | - X Q Feng
- Pediatric Department, Southern Medical University, Nanfang Hospital, Guangzhou, China
| | - H Wang
- Pediatric Department, Shengjing Hospital of China Medical University, Shenyang, China
| | - X J Li
- Pediatric Hematology and Oncology Department, Chengdu Women and Children's Central Hospital, Chengdu, China
| | - W L Li
- Hematology Department, Hunan Children's Hospital, Changsha, China
| | - J P Liu
- Pediatric Hematology Department, Inner Mongolia People's Hospital, Huhehaote, China
| | - L R Sun
- Pediatric Department, Shandong Province Hospital, Jinan, China
| | - S H Wang
- Hematology Department, Wulumuqi Children's Hospital, Wulumuqi, China
| | - J Jin
- Pediatric Department, Affiliated Hospital of Guizhou Medical University, Guiyang, China
| | - Q Fang
- Hematology Department, Hebei Children's Hospital, Shijiazhuang, China
| | - K H Luke
- Department of Hematology, Children's Hospital of Eastern Ontario, Ottawa, Ontario, Canada
| | - M C Poon
- Department of Hematology, University of Calgary, Calgary, Alberta, Canada
| | - V S Blanchette
- Division of Hematology/Oncology, The Hospital for Sick Children, Toronto, Ontario, Canada
| | - K Usuba
- ECHO Research Centre, Laurentian University, Sudbury, Ontario, Canada
| | - N L Young
- School of Rural and Northern Health and ECHO Research Centre, Laurentian University, Sudbury, Ontario, Canada
| | - R Wu
- Hematology and Oncology Center, Beijing Children's Hospital Affiliated to Capital Medical University, Beijing, China
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Zhang T, Wu H, Fang Q, Huang T. Numerical simulations of nuclear power plant containment subjected to aircraft impact. Nuclear Engineering and Design 2017. [DOI: 10.1016/j.nucengdes.2017.05.029] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
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Mao Y, Chen XS, Liang Y, Wu JY, Huang O, Zong Y, Fang Q, He JR, Zhu L, Chen WG, Li YF, Lin L, Fei XC, Shen KW. [Effect of 21-gene recurrence score on chemotherapy decisions for patients with estrogen receptor-positive, epidermal growth factor receptor 2-negative and lymph node-negative early stage-breast cancer]. Zhonghua Zhong Liu Za Zhi 2017; 39:502-508. [PMID: 28728295 DOI: 10.3760/cma.j.issn.0253-3766.2017.07.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the effect of 21-gene recurrence score on adjuvant chemotherapy decisions for patients with estrogen receptor (ER)-positive, epidermal growth factor receptor 2 (HER-2)-negative and lymph node (LN)-negative early stage-breast cancer. Methods: One hundred and forty-eight patients with ER+ , HER-2- and LN- early stage breast cancer were recruited in the Ruijin hospital, Shanghai Jiao Tong University School of Medicine. The 21-gene recurrence score (RS)assay was performed and systemic therapeutic decisions were made before and after knowing the RS results under multidisciplinary discussion. The effects of RS assay and the other influential factors on adjuvant chemotherapy decision were further analyzed. Results: After knowing the RS results, treatment decisions were changed in 26 out of 148 patients(17.6%). Among them, 9 out of 26 patients were not recommended for chemotherapy; 16 of 26 had treatment recommendation changed to chemotherapy, and chemotherapy regimen was changed in the last one patient. Multivariate analysis showed that RS, age and histological grade were independent factors of decision-making for adjuvant chemotherapy. Conclusion: Our results suggest that 21-gene recurrence score significantly influences decision making for adjuvant chemotherapy in patients with ER+ , HER-2- and LN- early stage breast cancer.
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Affiliation(s)
- Y Mao
- Comprehensive Breast Health Center, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - X S Chen
- Comprehensive Breast Health Center, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - Y Liang
- Comprehensive Breast Health Center, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - J Y Wu
- Comprehensive Breast Health Center, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - O Huang
- Comprehensive Breast Health Center, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - Y Zong
- Comprehensive Breast Health Center, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - Q Fang
- Comprehensive Breast Health Center, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - J R He
- Comprehensive Breast Health Center, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - L Zhu
- Comprehensive Breast Health Center, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - W G Chen
- Comprehensive Breast Health Center, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - Y F Li
- Comprehensive Breast Health Center, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - L Lin
- Department of Clinical Laboratory, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - X C Fei
- Department of Pathology, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
| | - K W Shen
- Comprehensive Breast Health Center, Ruijin Hospital, Shanghai Jiaotong University School of Medicine, Shanghai 200025, China
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Hong J, Chen XS, Wu JY, Huang O, Zhu L, He JR, Fang Q, Chen WG, Li YF, Shen KW. [Analysis of the factors influencing adjuvant chemotherapy decisions for triple negative breast cancer]. Zhonghua Zhong Liu Za Zhi 2017; 39:39-43. [PMID: 28104032 DOI: 10.3760/cma.j.issn.0253-3766.2017.01.008] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyze adjuvant chemotherapy decisions for triple negative breast cancer (TNBC), and explore the influencing factors in the multidisciplinary treatment (MDT) modality. Methods: A retrospective analysis was performed. The cases with invasive TNBC who underwent surgery and MDT discussion for adjuvant treatment in Ruijin Hospital, from April 2013 to June 2015, were recruited. The patients' clinicopathological characteristics were analyzed and adjuvant treatment suggestions from MDT were obtained. Here the chemotherapy decision alteration was defined as a disagreement in chemotherapy or not, or inconsistence in regimens between the attending doctor and the multidisciplinary team. Results: A total of 194 patients aged ≤70 years old were enrolled in the multidisciplinary discussion, and 187 patients (96.4%) were suggested to receive chemotherapy. When compared the opinions of the attending doctor to suggestions of the multidisciplinary team, we found that the percentage of chemotherapy decision alteration reached 22.7% (39/172), of which 94.9% (37/39) were inconsistence in chemotherapy regimens. There were 119 patients who were recommended to receive epirubicin plus cyclophosphamide (EC) followed by docetaxel (T) or weekly paclitaxel (wP) regimens. Before the announcement of results for the E1199 trial, EC-T accounted for 62.5% (55/88), and EC-wP accounted for 37.5% (33/88) for this group of patients. After that, the proportion of EC-T was decreased to 22.6% (7/31) and proportion of EC-wP increased to 77.4%(24/31) (P<0.001). In addition, a total of 20 patients were suggested to receive platinum based chemotherapy. The proportions were 9.3% in cases with invasive ductal carcinoma, and 33.3% in cases with metaplastic carcinoma, respectively (P=0.016). Conclusions: The adjuvant chemotherapy decision for TNBC patients is altered in 22.7% of the patients after MDT discussion. After the announcement of SABCS E1199 results, more patients are suggested to receive EC followed by weekly paclitaxel. There is a lack of detailed evidence for platinum based adjuvant chemotherapy for TNBC, and more patients with metaplastic carcinoma receive platinum based adjuvant chemotherapy.
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Affiliation(s)
- J Hong
- Comprehensive Breast Health Center, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - X S Chen
- Comprehensive Breast Health Center, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - J Y Wu
- Comprehensive Breast Health Center, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - O Huang
- Comprehensive Breast Health Center, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - L Zhu
- Comprehensive Breast Health Center, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - J R He
- Comprehensive Breast Health Center, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Q Fang
- Comprehensive Breast Health Center, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - W G Chen
- Comprehensive Breast Health Center, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - Y F Li
- Comprehensive Breast Health Center, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
| | - K W Shen
- Comprehensive Breast Health Center, Ruijin Hospital, Shanghai Jiao Tong University School of Medicine, Shanghai 200025, China
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Fang Q, Wang J, Hao YY, Li H, Hu JX, Yang GS, Hu JH. Effects of iodine methionine on boar sperm quality during liquid storage at 17°C. Reprod Domest Anim 2017; 52:1061-1066. [DOI: 10.1111/rda.13024] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2017] [Accepted: 06/07/2017] [Indexed: 11/27/2022]
Affiliation(s)
- Q Fang
- College of Animal Science and Technology; Northwest A&F University; Yangling Shaanxi China
| | - J Wang
- College of Animal Science and Technology; Northwest A&F University; Yangling Shaanxi China
| | - YY Hao
- College of Animal Science and Technology; Northwest A&F University; Yangling Shaanxi China
| | - H Li
- College of Animal Science and Technology; Northwest A&F University; Yangling Shaanxi China
| | - JX Hu
- College of Animal Science and Technology; Northwest A&F University; Yangling Shaanxi China
| | - GS Yang
- College of Animal Science and Technology; Northwest A&F University; Yangling Shaanxi China
| | - JH Hu
- College of Animal Science and Technology; Northwest A&F University; Yangling Shaanxi China
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Xu S, Xu Y, Chen L, Fang Q, Song S, Chen J, Teng J. RCN1 suppresses ER stress-induced apoptosis via calcium homeostasis and PERK-CHOP signaling. Oncogenesis 2017; 6:e304. [PMID: 28319095 PMCID: PMC5533947 DOI: 10.1038/oncsis.2017.6] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/29/2016] [Revised: 12/07/2016] [Accepted: 01/03/2017] [Indexed: 02/07/2023] Open
Abstract
Endoplasmic reticulum (ER) stress is caused by the disturbance of ER homeostasis and leads to the activation of the unfolded protein response (UPR), which alleviates stress at an early stage and triggers apoptosis if homeostasis fails over a prolonged timeframe. Here, we report that reticulocalbin 1 (RCN1), a member of the CREC family, is transactivated by nuclear factor kappa B (NF-κB) during ER stress and inhibits ER stress-induced apoptosis. The depletion of RCN1 increases the UPR during drug-induced ER stress by activating PRKR-like ER kinase–CCAAT/enhancer-binding protein-homologous protein (PERK–CHOP) signaling, thus inducing apoptosis. Furthermore, we found that the first two EF-hand calcium-binding motifs of RCN1 specifically interact with inositol 1,4,5-trisphosphate (IP3) receptor type 1 (IP3R1) on loop 3 of its ER luminal domain and inhibit ER calcium release and apoptosis. Together, these data indicate that RCN1, a target of NF-κB, suppresses ER calcium release by binding to IP3R1 and decreases the UPR, thereby inhibiting ER stress-induced apoptosis.
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Affiliation(s)
- S Xu
- Key Laboratory of Cell Proliferation and Differentiation of the Ministry of Education, State Key Laboratory of Bio-membrane and Membrane Bio-engineering, College of Life Sciences, Peking University, Beijing, China
| | - Y Xu
- Key Laboratory of Cell Proliferation and Differentiation of the Ministry of Education, State Key Laboratory of Bio-membrane and Membrane Bio-engineering, College of Life Sciences, Peking University, Beijing, China
| | - L Chen
- Key Laboratory of Cell Proliferation and Differentiation of the Ministry of Education, State Key Laboratory of Bio-membrane and Membrane Bio-engineering, College of Life Sciences, Peking University, Beijing, China
| | - Q Fang
- Key Laboratory of Cell Proliferation and Differentiation of the Ministry of Education, State Key Laboratory of Bio-membrane and Membrane Bio-engineering, College of Life Sciences, Peking University, Beijing, China
| | - S Song
- Key Laboratory of Cell Proliferation and Differentiation of the Ministry of Education, State Key Laboratory of Bio-membrane and Membrane Bio-engineering, College of Life Sciences, Peking University, Beijing, China
| | - J Chen
- Key Laboratory of Cell Proliferation and Differentiation of the Ministry of Education, State Key Laboratory of Bio-membrane and Membrane Bio-engineering, College of Life Sciences, Peking University, Beijing, China.,Center for Quantitative Biology, Peking University, Beijing, China
| | - J Teng
- Key Laboratory of Cell Proliferation and Differentiation of the Ministry of Education, State Key Laboratory of Bio-membrane and Membrane Bio-engineering, College of Life Sciences, Peking University, Beijing, China
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Zhang W, Aljekhedab F, Wang X, Fang Q, Shen G. Micromorphology study of bovine bone after ultrafast laser ablation. Int J Oral Maxillofac Surg 2017. [DOI: 10.1016/j.ijom.2017.02.751] [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: 11/25/2022]
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50
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Wei M, Chen Y, Xi J, Ru S, Ji M, Zhang D, Fang Q, Tang B. Discovery of natural mouse serum derived HIV-1 entry inhibitor(s). Acta Virol 2016; 60:404-409. [PMID: 27928921 DOI: 10.4149/av_2016_04_404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Among rationally designed human immunodeficiency virus 1 (HIV-1) inhibitors, diverse natural factors have showed as potent anti-HIV activity in human blood. We have discovered that the boiled supernatant of healthy mouse serum could suppress HIV-1 entry, and exhibited reduced inhibitory activity after trypsin digestion. Further analysis demonstrated that only the fraction containing 10-25 K proteins could inhibit HIV-1 mediated cell-cell fusion. These results suggest that the 10-25 K protein(s) is novel natural HIV-1 entry inhibitor(s). Our findings provide important information about novel natural HIV entry inhibitors in mouse serum.
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