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Lyu J, Sheng M, Cao Y, Jia L, Zhang C, Weng Y, Yu W. Ischemia and reperfusion-injured liver-derived exosomes elicit acute lung injury through miR-122-5p regulated alveolar macrophage polarization. Int Immunopharmacol 2024; 131:111853. [PMID: 38503014 DOI: 10.1016/j.intimp.2024.111853] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/02/2023] [Revised: 02/16/2024] [Accepted: 03/10/2024] [Indexed: 03/21/2024]
Abstract
Acute lung injury (ALI) is a common postoperative complication, particularly in pediatric patients after liver transplantation. Hepatic ischemia-reperfusion (HIR) increases the release of exosomes (IR-Exos) in peripheral circulation. However, the role of IR-Exos in the pathogenesis of ALI induced by HIR remains unclear. Here, we explored the role of exosomes derived from the HIR-injured liver in ALI development. Intravenous injection of IR-Exos caused lung inflammation in naive rats, whereas pretreatment with an inhibitor of exosomal secretion (GW4869) attenuated HIR-related lung injury. In vivo and in vitro results show that IR-Exos promoted proinflammatory responses and M1 macrophage polarization. Furthermore, miRNA profiling of serum identified miR-122-5p as the exosomal miRNA with the highest increase in young rats with HIR compared with controls. Additionally, IR-Exos transferred miR-122-5p to macrophages and promoted proinflammatory responses and M1 phenotype polarization by targeting suppressor of cytokine signaling protein 1(SOCS-1)/nuclear factor (NF)-κB. Importantly, the pathological role of exosomal miR-122-5p in initiating lung inflammation was reversed by inhibition of miR-122-5p. Clinically, high levels of miR-122-5p were found in serum and correlated to the severity of lung injury in pediatric living-donor liver transplant recipients with ALI. Taken together, our findings reveal that IR-Exos transfer liver-specific miR-122-5p to alveolar macrophages and elicit ALI by inducing M1 macrophage polarization via the SOCS-1/NF-κB signaling pathway.
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Affiliation(s)
- Jingshu Lyu
- Department of Anesthesiology, Tianjin First Central Hospital, 300192 Tianjin, China; Department of Anesthesiology and Perioperative Medicine, Zhengzhou University People's Hospital, Henan University People's Hospital, Henan Provincial People's Hospital, 450000 Zhengzhou, China
| | - Mingwei Sheng
- Department of Anesthesiology, Tianjin First Central Hospital, 300192 Tianjin, China
| | - Yingli Cao
- School of Medicine, Nankai University, 300071 Tianjin, China
| | - Lili Jia
- Department of Anesthesiology, Tianjin First Central Hospital, 300192 Tianjin, China
| | - Chen Zhang
- Department of Anesthesiology, The First Central Clinical School, Tianjin Medical University, Tianjin 300070, China
| | - Yiqi Weng
- Department of Anesthesiology, Tianjin First Central Hospital, 300192 Tianjin, China
| | - Wenli Yu
- Department of Anesthesiology, Tianjin First Central Hospital, 300192 Tianjin, China; School of Medicine, Nankai University, 300071 Tianjin, China.
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2
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Zhang X, Chen X, Cao JP, Wang HW, Deng WY, Yang LH, Lin K, Li Q, Li QH, Cao YL, Deng JX, Miao J. Ultra-high resistive switching current ratio and improved ferroelectricity and dielectric tunability performance in a BaTiO 3/La 0.7Sr 0.3MnO 3 heterostructure by inserting a SrCoO 2.5 layer. Nanoscale 2024; 16:3081-3090. [PMID: 38240724 DOI: 10.1039/d3nr04591a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/09/2024]
Abstract
A BaTiO3/SrCoO2.5 (BTO/SCO) bilayer and a BTO single film were prepared by radio frequency magnetron sputtering on La0.7Sr0.3MnO3 (LSMO) buffered SrTiO3 (001) substrates. Interestingly, compared with reported BTO-based films, the BTO/SCO/LSMO heterostructure has a maximum ON/OFF current ratio of ∼945. More interestingly, compared with the BTO single layer, a larger Pr (∼18.4 μC cm-2) and larger dielectric tunability (∼71.9%) were achieved in the BTO/SCO bilayer. The improved performance may be attributed to the large tetragonality and improved oxygen vacancy concentrations in the BTO/SCO/LSMO heterostructure. Furthermore, our BTO/SCO/LSMO stacks exhibit potential for flexible electronic informational devices.
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Affiliation(s)
- Xi Zhang
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China.
- Institute of Solid State Chemistry, University of Science and Technology Beijing, Beijing 100083, China.
| | - Xin Chen
- Institute of Solid State Chemistry, University of Science and Technology Beijing, Beijing 100083, China.
| | - J P Cao
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China.
- Institute of Solid State Chemistry, University of Science and Technology Beijing, Beijing 100083, China.
| | - H W Wang
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China.
- Institute of Solid State Chemistry, University of Science and Technology Beijing, Beijing 100083, China.
| | - W Y Deng
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China.
- Institute of Solid State Chemistry, University of Science and Technology Beijing, Beijing 100083, China.
| | - L H Yang
- Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - K Lin
- Institute of Solid State Chemistry, University of Science and Technology Beijing, Beijing 100083, China.
| | - Q Li
- Institute of Solid State Chemistry, University of Science and Technology Beijing, Beijing 100083, China.
| | - Q H Li
- Institute of Solid State Chemistry, University of Science and Technology Beijing, Beijing 100083, China.
| | - Y L Cao
- Institute of Solid State Chemistry, University of Science and Technology Beijing, Beijing 100083, China.
| | - J X Deng
- Institute of Solid State Chemistry, University of Science and Technology Beijing, Beijing 100083, China.
| | - Jun Miao
- School of Materials Science and Engineering, University of Science and Technology Beijing, Beijing 100083, China.
- Institute of Solid State Chemistry, University of Science and Technology Beijing, Beijing 100083, China.
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Lu X, Li N, Li L, Wu Y, Lyu X, Cao Y, Liu J, Qin Q. Identification of novel biomarkers for varicocele using iTRAQ LC-MS/MS technology. Chin Med J (Engl) 2024; 137:371-372. [PMID: 37634944 PMCID: PMC10836901 DOI: 10.1097/cm9.0000000000002798] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/17/2023] [Indexed: 08/29/2023] Open
Affiliation(s)
- Xianfeng Lu
- Department of Pediatrics, Shanxi Provincial People's Hospital, Taiyuan, Shanxi 030012, China
| | - Na Li
- Department of Reproductive Genetics, Heping Hospital Affiliated to Changzhi Medical College, Changzhi, Shanxi 046099, China
| | - Lufang Li
- Department of Biochemistry, Basic Medicine College, Shanxi Medical University, Taiyuan, Shanxi 030607, China
| | - Yongai Wu
- Reproductive Medical Department, Shanxi Provincial People's Hospital, Taiyuan, Shanxi 030012, China
| | - Xuefeng Lyu
- Reproductive Medical Department, Shanxi Provincial People's Hospital, Taiyuan, Shanxi 030012, China
| | - Yingli Cao
- Reproductive Medical Department, Shanxi Provincial People's Hospital, Taiyuan, Shanxi 030012, China
| | - Jianrong Liu
- Reproductive Medical Department, Shanxi Provincial People's Hospital, Taiyuan, Shanxi 030012, China
| | - Qin Qin
- Reproductive Medical Department, Shanxi Provincial People's Hospital, Taiyuan, Shanxi 030012, China
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Cao YL, Sun C, Xi JY, Luo SS, Hu JN, Zheng YS, Qiao K, Lu JH, Lin J. [Clinical features of peripheral neuropathy with livedo reticularis: an analysis of seven cases]. Zhonghua Yi Xue Za Zhi 2024; 104:218-221. [PMID: 38220448 DOI: 10.3760/cma.j.cn112137-20231024-00882] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/16/2024]
Abstract
The clinical characteristics, auxiliary examinations, skin and neuropathological features of 7 patients who had reticular cyanosis with peripheral neuropathy from the Department of Neurology, Huashan Hospital, Fudan University from January 2019 to December 2022 were retrospectively analyzed. Among the 7 patients, 5 were female and 2 were male.The age of onset of peripheral neuropathy was (39.8±21.3) years and the disease duration of peripheral neuropathy was (2.7±2.3) years. Three patients had acute onset and 4 patients had chronic onset. All the patients had limb numbness, with limb weakness in 6 patients and pain in 5 cases. Neuroelectrophysiological examination revealed 1 case of mononeuropathy, 2 cases of polyneuropathy, 2 cases of peripheral neuropathy, and 2 cases of sensory neuron neuropathy. Skin biopsy was performed in 3 patients, which presented hyperplasia and expansion of blood vessels in the dermis with lymphocyte infiltration. Nerve biopsy was performed in 3 patients, indicating axonal damage. Reticular cyanosis with peripheral neuropathy characterizes with numbness and weakness of limbs, most of which were accompanied by pain. Electrophysiological changes are in various forms. The pathological changes are dominated by the damage of axonal.
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Affiliation(s)
- Y L Cao
- Department of Neurology, the Second Affiliated Hospital of Soochow University, Suzhou 215004, China
| | - C Sun
- Department of Neurology, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - J Y Xi
- Department of Neurology, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - S S Luo
- Department of Neurology, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - J N Hu
- Department of Neurology, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - Y S Zheng
- Department of Neurology, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - K Qiao
- Department of Neurology, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - J H Lu
- Department of Neurology, Huashan Hospital, Fudan University, Shanghai 200040, China
| | - J Lin
- Department of Neurology, Huashan Hospital, Fudan University, Shanghai 200040, China
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Li J, Cao YL, Suo LD, Wu J, Feng LZ. [Establishing adult vaccination system to improve the quality of immunization services over the life course]. Zhonghua Yu Fang Yi Xue Za Zhi 2023; 57:2016-2020. [PMID: 38186150 DOI: 10.3760/cma.j.cn112150-20230608-00450] [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: 01/09/2024]
Abstract
The scientific setting and standardized management of adult vaccination clinics will improve the accessibility of vaccination services, thereby increasing the vaccination rate. Currently, some provinces and cities in China have been exploring the construction of adult vaccination systems for many years, effectively improving the level of vaccination services, and forming some useful experiences and models. However, the construction of China's adult vaccination system is not yet perfect, and the service mode needs to be optimized. In the future, we should continue to improve the guarantee measures for adult vaccination, scientifically lay out the network, optimize the service mode, and improve the overall quality of immunization services over the life course.
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Affiliation(s)
- J Li
- Department of Immunization, Beijing Municipal Center for Disease Prevention and Control, Beijing 100013,China
| | - Y L Cao
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences and Peking Union Medical College/State Key Laboratory of Respiratory Health and Multimorbidity/Key Laboratory of Pathogen Infection Prevention and Control (Peking Union Medical College), Ministry of Education, Beijing 100005, China
| | - L D Suo
- Department of Immunization, Beijing Municipal Center for Disease Prevention and Control, Beijing 100013,China
| | - J Wu
- Department of Immunization, Beijing Municipal Center for Disease Prevention and Control, Beijing 100013,China
| | - L Z Feng
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences and Peking Union Medical College/State Key Laboratory of Respiratory Health and Multimorbidity/Key Laboratory of Pathogen Infection Prevention and Control (Peking Union Medical College), Ministry of Education, Beijing 100005, China
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6
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Zhang C, Sheng M, Lv J, Cao Y, Chen D, Jia L, Sun Y, Ren Y, Li L, Weng Y, Yu W. Single-cell analysis reveals the immune heterogeneity and interactions in lungs undergoing hepatic ischemia-reperfusion. Int Immunopharmacol 2023; 124:111043. [PMID: 37844464 DOI: 10.1016/j.intimp.2023.111043] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 10/02/2023] [Accepted: 10/08/2023] [Indexed: 10/18/2023]
Abstract
Hepatic ischemia-reperfusion IR (HIR) is an unavoidable pathophysiological process during liver transplantation, resulting in systematic sterile inflammation and remote organ injury. Acute lung injury (ALI) is a serious complication after liver transplantation with high postoperative morbidity and mortality. However, the underlying mechanism is still unclear. To assess the phenotype and plasticity of various cell types in the lung tissue microenvironment after HIR at the single-cell level, single-cell RNA sequencing (scRNA-seq) was performed using the lungs from HIR-induced mice. In our results, we identified 23 cell types in the lungs after HIR and found that this highly complex ecosystem was formed by subpopulations of bone marrow-derived cells that signaled each other and mediated inflammatory responses in different states and different intervals. We described the unique transcriptional profiles of lung cell clusters and discovered two novel cell subtypes (Tspo+Endothelial cells and Vcan+ monocytes), as well as the endothelial cell-immune cell and immune cell-T cell clusters interactome. In addition, we found that S100 calcium binding protein (S100a8/a9), specifically and highly expressed in immune cell clusters of lung tissues and exhibited detrimental effects. Finally, the cellular landscape of the lung tissues after HIR was established, highlighting the heterogeneity and cellular interactions between major immune cells in HIR-induced lungs. Our findings provided new insights into the mechanisms of HIR-induced ALI and offered potential therapeutic target to prevent ALI after liver transplantation.
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Affiliation(s)
- Chen Zhang
- The First Central Clinical School, Tianjin Medical University, Tianjin 300052, China; Department of Anesthesiology, Tianjin First Central Hospital, Tianjin 300192, China
| | - Mingwei Sheng
- Department of Anesthesiology, Tianjin First Central Hospital, Tianjin 300192, China
| | - Jingshu Lv
- Department of Anesthesiology, Tianjin First Central Hospital, Tianjin 300192, China
| | - Yingli Cao
- School of Medical, Nankai University, Tianjin 300071, China
| | - Dapeng Chen
- The First Central Clinical School, Tianjin Medical University, Tianjin 300052, China
| | - Lili Jia
- Department of Anesthesiology, Tianjin First Central Hospital, Tianjin 300192, China
| | - Ying Sun
- Department of Anesthesiology, Tianjin First Central Hospital, Tianjin 300192, China
| | - Yinghui Ren
- Department of Anesthesiology, Tianjin First Central Hospital, Tianjin 300192, China
| | - Lian Li
- College of Life Sciences, Nankai University, Tianjin 300071, China
| | - Yiqi Weng
- Department of Anesthesiology, Tianjin First Central Hospital, Tianjin 300192, China
| | - Wenli Yu
- The First Central Clinical School, Tianjin Medical University, Tianjin 300052, China; Department of Anesthesiology, Tianjin First Central Hospital, Tianjin 300192, China.
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7
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Xu YS, Jiang MY, Cao YL, Sun YX, Huang QR, Yang WZ, Feng LZ. [Research progress on the effectiveness of smallpox vaccination against mpox virus infection]. Zhonghua Liu Xing Bing Xue Za Zhi 2023; 44:673-676. [PMID: 37147844 DOI: 10.3760/cma.j.cn112338-20221102-00934] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 05/07/2023]
Abstract
With the expansion of mpox virus infection from endemic to a global epidemic in 2022, the WHO declared that the mpox event constituted a Public Health Emergency of International Concern. Due to the high degree of gene sequence similarity among orthopox viruses and cross-reactive antibodies induced by orthoviruses, smallpox vaccination may affect the immune response induced by mpox virus infection. The analysis of the protective effects of smallpox vaccination against mpox virus infection will help define the focus of prevention and control. In this review, we clarify the protection of the smallpox vaccine against mpox virus infection by analyzing the correlation between smallpox vaccination, immune response status, and clinical data and providing evidence for the prevention, control, and strategies of mpox epidemics.
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Affiliation(s)
- Y S Xu
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - M Y Jiang
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - Y L Cao
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - Y X Sun
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - Q R Huang
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - W Z Yang
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
| | - L Z Feng
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730, China
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8
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Sheng M, Weng Y, Cao Y, Zhang C, Lin Y, Yu W. Caspase 6/NR4A1/SOX9 signaling axis regulates hepatic inflammation and pyroptosis in ischemia-stressed fatty liver. Cell Death Discov 2023; 9:106. [PMID: 36977670 PMCID: PMC10043527 DOI: 10.1038/s41420-023-01396-z] [Citation(s) in RCA: 6] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2023] [Revised: 02/25/2023] [Accepted: 03/03/2023] [Indexed: 03/30/2023] Open
Abstract
The mechanism of nonalcoholic fatty liver susceptibility to ischemia/reperfusion (IR) injury has not been fully clarified. Caspase 6 is a critical regulator in innate immunity and host defense. We aimed to characterize the specific role of Caspase 6 in IR-induced inflammatory responses in fatty livers. Human fatty liver samples were harvested from patients undergoing ischemia-related hepatectomy to evaluate Caspase 6 expression. in mice model, we generated Caspase 6-knockout (Caspase 6KO) mice to investigate cellular and molecular mechanisms of macrophage Caspase 6 in IR-stimulated fatty livers. In human liver biopsies, Caspase 6 expression was upregulated combined with enhanced serum ALT level and severe histopathological injury in ischemic fatty livers. Moreover, Caspase 6 was mainly accumulated in macrophages but not hepatocytes. Unlike in controls, the Caspase 6-deficiency attenuated liver damage and inflammation activation. Activation of macrophage NR4A1 or SOX9 in Caspase 6-deficient livers aggravated liver inflammation. Mechanistically, macrophage NR4A1 co-localized with SOX9 in the nuclear under inflammatory conditions. Specifically, SOX9 acts as a coactivator of NR4A1 to directly target S100A9 transcription. Furthermore, macrophage S100A9 ablation dampened NEK7/NLRP3-driven inflammatory response and pyroptosis in macrophages. In conclusion, our findings identify a novel role of Caspase 6 in regulating NR4A1/SOX9 interaction in response to IR-stimulated fatty liver inflammation, and provide potential therapeutic targets for the prevention of fatty liver IR injury.
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Affiliation(s)
- Mingwei Sheng
- Department of Anesthesiology, Tianjin First Central Hospital, Tianjin, China
| | - Yiqi Weng
- Department of Anesthesiology, Tianjin First Central Hospital, Tianjin, China
| | - Yingli Cao
- Department of Anesthesiology, Tianjin First Central Hospital, Tianjin, China
| | - Chen Zhang
- Department of Anesthesiology, Tianjin First Central Hospital, Tianjin, China
| | - Yuanbang Lin
- Department of General Surgery, Tianjin Medical University General Hospital, Tianjin, China.
| | - Wenli Yu
- Department of Anesthesiology, Tianjin First Central Hospital, Tianjin, China.
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9
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Fan ZH, Xu L, Tian Y, Cao YL, Zhang XY, Duan ZP, Ren F. [The study of a key molecule Caspase-1 of inflammasome in hepatitis B virus-related diseases]. Zhonghua Gan Zang Bing Za Zhi 2022; 30:1158-1162. [PMID: 36891691 DOI: 10.3760/cma.j.cn501113-20210512-00231] [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: 03/10/2023]
Abstract
Objective: To investigate the expression and role of asparte-specific cysteine protease (Caspase)-1, inflammasomes key molecule, in hepatitis B virus (HBV)-related diseases. Methods: HBV-related liver disease patients' serum (438 cases) and liver tissue (82 cases) samples were collected from Beijing You'an Hospital affiliated with Capital Medical University. The mRNA expression level of caspase-1 in liver tissue was detected by real-time fluorescence quantitative PCR (qRT-PCR). The protein expression level of Caspase-1 in liver tissue was detected by the immunofluorescence method. The activity of Caspase-1 was detected using the Caspase-1 colorimetric assay kit. The level of Caspase-1 in the serum was detected by an ELISA kit. Results: The results of qRT-PCR showed that the mRNA level of Caspase-1 was downregulated in patients with chronic hepatitis B (CHB), cirrhosis (LC), and hepatocellular carcinoma (HCC), while up-regulated in patients with acute-on-chronic liver failure (ACLF) (P<0.01) compared with normal subjects. Immunofluorescence assays showed that Caspase-1 protein levels were elevated in ACLF patients, decreased in HCC and LC patients, and slightly elevated in CHB patients. The activity of Caspase-1 was slightly higher in liver tissue from CHB, LC, and HCC patients than in the normal control group, and there was no statistically significant difference between the groups. Additionally, compared with the control group, Caspase-1 activity was significantly reduced in the ACLF group (P<0.01). Serum Caspase-1 levels were significantly lower in patients with CHB, ACLF, LC, and HCC than in normal subjects, and serum Caspase-1 levels were lowest in patients with ACLF (P<0.001). Conclusion: Caspase-1, a key molecule of inflammasomes, plays an important role in HBV-related diseases and has significant differences, showing distinct features for ACLF than other HBV-related diseases.
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Affiliation(s)
- Z H Fan
- Beijing Youan Hospital, Capital Medical University & Beijing Institute of Hepatology, Beijing 100069, China
| | - L Xu
- Beijing Youan Hospital, Capital Medical University & Beijing Institute of Hepatology, Beijing 100069, China
| | - Y Tian
- Beijing Youan Hospital, Capital Medical University & Beijing Institute of Hepatology, Beijing 100069, China
| | - Y L Cao
- Beijing Youan Hospital, Capital Medical University & Beijing Institute of Hepatology, Beijing 100069, China
| | - X Y Zhang
- Beijing Youan Hospital, Capital Medical University & Beijing Institute of Hepatology, Beijing 100069, China
| | - Z P Duan
- Beijing Youan Hospital, Capital Medical University & Beijing Institute of Hepatology, Beijing 100069, China
| | - F Ren
- Beijing Youan Hospital, Capital Medical University & Beijing Institute of Hepatology, Beijing 100069, China
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Jia MM, Liu XZ, Qi L, Dai PX, Li Q, Jiang MY, Tang WW, Tan MW, Li TT, Jiang BS, Ren YH, Rao JL, Yan ZY, Cao YL, Yang WZ, Ran H, Feng L. [Application of pretrained model based on electronic medical record in recognition of acute respiratory infection]. Zhonghua Yu Fang Yi Xue Za Zhi 2022; 56:1543-1548. [PMID: 36372741 DOI: 10.3760/cma.j.cn1112150-20220805-00789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/16/2023]
Abstract
Objective: To evaluate the recognition of acute respiratory infection (ARI) by a pretrained model based on electronic medical records (EMRs). Methods: 38 581 EMRs were obtained from Chongqing University Three Gorges Hospital in December 2021. Bidirectional encoder representation from transformers (BERT) pretrained model was used to identify ARI in EMRs. The results of medical professionals were considered as the gold standard to calculate the sensitivity, specificity, Kappa value, and area under the curve of the receiver operating characteristic (AUC). Results: There were 3 817 EMRs in the test set, with 1 200 ARIs. A total of 1 205 cases were determined as ARI by the model, with a sensitivity of 92.67% (1 112/1 200) and a specificity of 96.45% (2 524/2 617). The model identified ARI with similar accuracy in males and females (AUCs 0.95 and 0.94, respectively), and was more accurate in identifying ARI cases in those aged less than 18 than in adults 18-59 and adults 60 and older (AUCs 0.94, 0.89 and 0.94, respectively). The current model had a better identification of ARIs in outpatient patients than that in hospitalized patients, with AUCs of 0.74 and 0.95, respectively. Conclusion: The use of the BERT pretrained model based on EMRs has a good performance in the recognition of ARI cases, especially for the outpatients and juveniles. It shows a great potential to be applied to the monitoring of ARI cases in medical institutions.
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Affiliation(s)
- M M Jia
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730,China
| | - X Z Liu
- Department of Infection Management, Chongqing University Three Gorges Hospital, Chongqing 404000, China
| | - L Qi
- Department of Infectious Disease Control and Prevention, Chongqing Municipal Center for Disease Control and Prevention, Chongqing 400042, China
| | - P X Dai
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730,China
| | - Q Li
- Department of Infectious Disease Control and Prevention, Chongqing Municipal Center for Disease Control and Prevention, Chongqing 400042, China
| | - M Y Jiang
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730,China
| | - W W Tang
- Department of Infectious Disease Control and Prevention, Chongqing Municipal Center for Disease Control and Prevention, Chongqing 400042, China
| | - M W Tan
- Department of Infection Management, Chongqing University Three Gorges Hospital, Chongqing 404000, China
| | - T T Li
- Department of Infectious Disease Control and Prevention, Chongqing Municipal Center for Disease Control and Prevention, Chongqing 400042, China
| | - B S Jiang
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730,China
| | - Y H Ren
- Department of Infectious Disease Prevention and Control, Wanzhou District Center for Disease Control and prevention, Chongqing 404199, China
| | - J L Rao
- Department of Infection Management, Chongqing University Three Gorges Hospital, Chongqing 404000, China
| | - Z Y Yan
- Department of Infectious Disease Prevention and Control, Wanzhou District Center for Disease Control and prevention, Chongqing 404199, China
| | - Y L Cao
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730,China
| | - W Z Yang
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730,China
| | - H Ran
- Department of Infectious Disease Prevention and Control, Wanzhou District Center for Disease Control and prevention, Chongqing 404199, China
| | - Luzhao Feng
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100730,China
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11
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Wei J, Li Y, Cao Y, Liu Q, Yang K, Song X, Shao Y, Qi K, Tu J. Rapid and Visual Detection of Porcine Parvovirus Using an ERA-CRISPR/Cas12a System Combined With Lateral Flow Dipstick Assay. Front Cell Infect Microbiol 2022; 12:879887. [PMID: 35646725 PMCID: PMC9131491 DOI: 10.3389/fcimb.2022.879887] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Accepted: 04/11/2022] [Indexed: 12/26/2022] Open
Abstract
Porcine parvovirus (PPV) is one of the important causes of pig reproductive diseases. The most prevalent methods for PPV authentication are the polymerase chain reaction (PCR), enzyme-linked immunosorbent assay, and quantitative real-time PCR. However, these procedures have downsides, such as the fact that they take a long time and require expensive equipment. As a result, a rapid, visible, and economical clinical diagnostic strategy to detect PPV is necessary. In this study, three pairs of crRNA primers were designed to recognize the VP2 gene, and an ERA-CRISPR/Cas12a system for PPV detection was successfully developed. The approach involved isothermal detection at 37°C, and the method can be used for visual inspection. The detection limit of the ERA-CRISPR/Cas12a system was 3.75 × 102 copies/μL, and no cross reactions with other porcine viruses were found. In view of the preceding, a rapid, visible, and low-cost nucleic acid testing approach for PPV has been developed using the ERA-CRISPR/Cas12a system.
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Affiliation(s)
- Jing Wei
- Anhui Province Engineering Laboratory for Animal Food Quality and Bio-safety, College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
- Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, Anhui Agricultural University, Hefei, China
| | - Yanan Li
- Anhui Province Engineering Laboratory for Animal Food Quality and Bio-safety, College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
- Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, Anhui Agricultural University, Hefei, China
| | - Yingli Cao
- Anhui Province Engineering Laboratory for Animal Food Quality and Bio-safety, College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
- Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, Anhui Agricultural University, Hefei, China
| | - Qi Liu
- Anhui Province Engineering Laboratory for Animal Food Quality and Bio-safety, College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
- Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, Anhui Agricultural University, Hefei, China
| | - Kankan Yang
- Anhui Province Engineering Laboratory for Animal Food Quality and Bio-safety, College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
- Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, Anhui Agricultural University, Hefei, China
| | - Xiangjun Song
- Anhui Province Engineering Laboratory for Animal Food Quality and Bio-safety, College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
- Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, Anhui Agricultural University, Hefei, China
| | - Ying Shao
- Anhui Province Engineering Laboratory for Animal Food Quality and Bio-safety, College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
- Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, Anhui Agricultural University, Hefei, China
| | - Kezong Qi
- Anhui Province Engineering Laboratory for Animal Food Quality and Bio-safety, College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
- Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, Anhui Agricultural University, Hefei, China
| | - Jian Tu
- Anhui Province Engineering Laboratory for Animal Food Quality and Bio-safety, College of Animal Science and Technology, Anhui Agricultural University, Hefei, China
- Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, Anhui Agricultural University, Hefei, China
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12
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Zhao D, Feng S, Cao Y, Yu F, Guan Q, Li J, Zhang G, Xu T. Study on the Classification Method of Rice Leaf Blast Levels Based on Fusion Features and Adaptive-Weight Immune Particle Swarm Optimization Extreme Learning Machine Algorithm. Front Plant Sci 2022; 13:879668. [PMID: 35599890 PMCID: PMC9120945 DOI: 10.3389/fpls.2022.879668] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/20/2022] [Accepted: 04/19/2022] [Indexed: 05/03/2023]
Abstract
Leaf blast is a disease of rice leaves caused by the Pyricularia oryzae. It is considered a significant disease is affecting rice yield and quality and causing economic losses to food worldwide. Early detection of rice leaf blast is essential for early intervention and limiting the spread of the disease. To quickly and non-destructively classify rice leaf blast levels for accurate leaf blast detection and timely control. This study used hyperspectral imaging technology to obtain hyperspectral image data of rice leaves. The descending dimension methods got rice leaf disease characteristics of different disease classes, and the disease characteristics obtained by screening were used as model inputs to construct a model for early detection of leaf blast disease. First, three methods, ElasticNet, principal component analysis loadings (PCA loadings), and successive projections algorithm (SPA), were used to select the wavelengths of spectral features associated with leaf blast, respectively. Next, the texture features of the images were extracted using a gray level co-occurrence matrix (GLCM), and the texture features with high correlation were screened by the Pearson correlation analysis. Finally, an adaptive-weight immune particle swarm optimization extreme learning machine (AIPSO-ELM) based disease level classification method is proposed to further improve the model classification accuracy. It was also compared and analyzed with a support vector machine (SVM) and extreme learning machine (ELM). The results show that the disease level classification model constructed using a combination of spectral characteristic wavelengths and texture features is significantly better than a single disease feature in terms of classification accuracy. Among them, the model built with ElasticNet + TFs has the highest classification accuracy, with OA and Kappa greater than 90 and 87%, respectively. Meanwhile, the AIPSO-ELM proposed in this study has higher classification accuracy for leaf blast level classification than SVM and ELM classification models. In particular, the AIPSO-ELM model constructed with ElasticNet+TFs as features obtained the best classification performance, with OA and Kappa of 97.62 and 96.82%, respectively. In summary, the combination of spectral characteristic wavelength and texture features can significantly improve disease classification accuracy. At the same time, the AIPSO-ELM classification model proposed in this study has sure accuracy and stability, which can provide a reference for rice leaf blast disease detection.
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Affiliation(s)
- Dongxue Zhao
- College of Information and Electrical Engineering, Shenyang Agricultural University, Shenyang, China
| | - Shuai Feng
- College of Information and Electrical Engineering, Shenyang Agricultural University, Shenyang, China
| | - Yingli Cao
- College of Information and Electrical Engineering, Shenyang Agricultural University, Shenyang, China
- Liaoning Engineering Research Center for Information Technology in Agriculture, Shenyang, China
| | - Fenghua Yu
- College of Information and Electrical Engineering, Shenyang Agricultural University, Shenyang, China
- Liaoning Engineering Research Center for Information Technology in Agriculture, Shenyang, China
| | - Qiang Guan
- College of Information and Electrical Engineering, Shenyang Agricultural University, Shenyang, China
| | - Jinpeng Li
- College of Information and Electrical Engineering, Shenyang Agricultural University, Shenyang, China
| | - Guosheng Zhang
- College of Information and Electrical Engineering, Shenyang Agricultural University, Shenyang, China
| | - Tongyu Xu
- College of Information and Electrical Engineering, Shenyang Agricultural University, Shenyang, China
- Liaoning Engineering Research Center for Information Technology in Agriculture, Shenyang, China
- *Correspondence: Tongyu Xu,
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13
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Zhang W, Xu L, Liu Q, Cao Y, Yang K, Song X, Shao Y, Tu J, Qi K. Enzymatic recombinase amplification coupled with CRISPR-Cas12a for ultrasensitive, rapid, and specific Porcine circovirus 3 detection. Mol Cell Probes 2021; 59:101763. [PMID: 34509634 DOI: 10.1016/j.mcp.2021.101763] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2021] [Revised: 08/28/2021] [Accepted: 09/06/2021] [Indexed: 12/26/2022]
Abstract
Porcine circovirus type 3 (PCV3) is a disease associated with porcine dermatitis and nephrotic syndrome (PDNS) that has caused significant economic losses to swine herds since its discovery in 2016. To develop a simple, on-site, rapid, and sensitive assay to combat the spread of PCV3, we optimized the CRISPR/Cas12a (also known as Cpf1) system combined with enzymatic recombinase amplification (ERA) nucleic acid amplification to diagnose PCV3. The results showed that the ERA-CRISPR/Cas12a reaction could detect PCV3 within 1 h in genomic DNA harboring a minimum of seven copies. Additionally, we confirmed no cross-reactivity with PCV2, PCV4, or other porcine viruses, revealing the good specificity of this technique. These results demonstrated the ability of ERA-CRISPR/Cas12a to detect DNA at the single-molecule level and provide a rapid, simple, ultrasensitive, one-pot point-of-care test for PCV3 and suggest its potential for a variety of nucleic acid detection applications.
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Affiliation(s)
- Wuyin Zhang
- Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, Anhui Agricultural University, Shushan District West Yangtze River Road 130#, Hefei, 230036, Anhui Province, People's Republic of China
| | - Liang Xu
- Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, Anhui Agricultural University, Shushan District West Yangtze River Road 130#, Hefei, 230036, Anhui Province, People's Republic of China
| | - Qi Liu
- Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, Anhui Agricultural University, Shushan District West Yangtze River Road 130#, Hefei, 230036, Anhui Province, People's Republic of China
| | - Yingli Cao
- Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, Anhui Agricultural University, Shushan District West Yangtze River Road 130#, Hefei, 230036, Anhui Province, People's Republic of China
| | - Kankan Yang
- Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, Anhui Agricultural University, Shushan District West Yangtze River Road 130#, Hefei, 230036, Anhui Province, People's Republic of China
| | - Xiangjun Song
- Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, Anhui Agricultural University, Shushan District West Yangtze River Road 130#, Hefei, 230036, Anhui Province, People's Republic of China
| | - Ying Shao
- Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, Anhui Agricultural University, Shushan District West Yangtze River Road 130#, Hefei, 230036, Anhui Province, People's Republic of China
| | - Jian Tu
- Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, Anhui Agricultural University, Shushan District West Yangtze River Road 130#, Hefei, 230036, Anhui Province, People's Republic of China.
| | - Kezong Qi
- Anhui Province Key Laboratory of Veterinary Pathobiology and Disease Control, Anhui Agricultural University, Shushan District West Yangtze River Road 130#, Hefei, 230036, Anhui Province, People's Republic of China.
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14
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Wang Q, Zhang T, Yang Y, Chen FY, Dai PX, Jia MM, Leng ZW, Ma LB, Yang J, Qi WR, Zhang XX, Mu Y, Chen SY, Xu YS, Cao YL, Yang WZ, Yang T, Feng LZ. [Evaluation of demand of resources for laboratory testing and prevention and control of COVID-19 in the context of global pandemic]. Zhonghua Liu Xing Bing Xue Za Zhi 2021; 42:983-991. [PMID: 34814496 DOI: 10.3760/cma.j.cn112338-20210303-00169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Abstract
Objective: To rapidly evaluate the level of healthcare resource demand for laboratory testing and prevention and control of corona virus disease 2019 (COVID-19) in different epidemic situation, and prepare for the capacity planning, stockpile distribution, and funding raising for infectious disease epidemic response. Methods: An susceptible, exposed, infectious, removed infectious disease dynamics model with confirmed asymptomatic infection cases and symptomatic hospitalized patients was introduced to simulate different COVID-19 epidemic situation and predict the numbers of hospitalized or isolated patients, and based on the current COVID-19 prevention and control measures in China, the demands of resources for laboratory testing and prevention and control of COVID-19 were evaluated. Results: When community or local transmission or outbreaks occur and total population nucleic acid testing is implemented, the need for human resources is 3.3-89.1 times higher than the reserved, and the current resources of medical personal protective equipment and instruments can meet the need. The surge in asymptomatic infections can also increase the human resource demand for laboratory testing and pose challenge to the prevention and control of the disease. When vaccine protection coverage reach ≥50%, appropriate adjustment of the prevention and control measures can reduce the need for laboratory and human resources. Conclusions: There is a great need in our country to reserve the human resources for laboratory testing and disease prevention and control for the response of the possible epidemic of COVID-19. Challenges to human resources resulted from total population nucleic acid testing and its necessity need to be considered. Conducting non-pharmaceutical interventions and encouraging more people to be vaccinated can mitigate the shock on healthcare resource demand in COVID-19 prevention and control.
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Affiliation(s)
- Q Wang
- Division of Infectious Diseases, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - T Zhang
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Y Yang
- Division of Infectious Diseases, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - F Y Chen
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - P X Dai
- Division of Infectious Diseases, Chinese Center for Disease Control and Prevention, Beijing 102206, China
| | - M M Jia
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Z W Leng
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - L B Ma
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - J Yang
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - W R Qi
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - X X Zhang
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Y Mu
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - S Y Chen
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Y S Xu
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - Y L Cao
- School of Public Health, Shanxi Medical University, Taiyuan 030012, China
| | - W Z Yang
- School of Population Medicine and Public Health, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - T Yang
- Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
| | - L Z Feng
- Division of Infectious Diseases, Chinese Center for Disease Control and Prevention, Beijing 102206, China School of Population Medicine and Public Health, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100730, China
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15
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Lyu JH, Fan XS, Shen Q, Wang XX, Zhang YF, Huang WB, Cao YL, Zhou C, Chang JL, Ma W, Zhou XJ, Zhang LH. [Feasibility multi-center study of artificial intelligence assistance in cervical fluid-based cytology diagnosis]. Zhonghua Bing Li Xue Za Zhi 2021; 50:353-357. [PMID: 33831994 DOI: 10.3760/cma.j.cn112151-20201109-00835] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To propose a method of cervical cytology screening based on deep convolutional neural network and compare it with the diagnosis of cytologists. Method: The deep segmentation network was used to extract 618 333 regions of interest (ROI) from 5, 516 cytological pathological images. Combined with the experience of physicians, the deep classification network with the ability to analyze ROI was trained. The classification results were used to construct features, and the decision model was used to complete the classification of cytopathological images. Results: The sensitivity and specificity were 89.72%, 58.48%, 33.95% and 95.94% respectively. Among the smears derived from four different preparation methods, this algorithm had the best effect on natural fallout with a sensitivity of 91.10%, specificity of 69.32%, positive predictive rate of 41.41%, and negative predictive rate of 97.03%. Conclusion: Deep convolutional neural network image recognition technology can be applied to cervical cytology screening.
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Affiliation(s)
- J H Lyu
- Department of pathology, Suzhou Municipal Hospital, Suzhou 215002, China
| | - X S Fan
- Department of Pathology, the Affiliated Drum Tower Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - Q Shen
- Department of Pathology, Jinling Hospital, Nanjing 210002, China
| | - X X Wang
- Department of GCP Center,Jiangsu Province Hospital of TCM, Nanjing 210029, China
| | - Y F Zhang
- Department of Pathology, Jiangsu Province Hospital of TCM, Nanjing 210029, China
| | - W B Huang
- Department of Pathology, the Affiliated Nanjing Hospital of Nanjing Medical University, Nanjing 210000, China
| | - Y L Cao
- Jiangsu Yitou Health Technology Company, Nanjing 210000, China
| | - C Zhou
- Medical Technology Company, Nanjing 210000, China
| | - J L Chang
- Medical Technology Company, Nanjing 210000, China
| | - W Ma
- Medical Technology Company, Nanjing 210000, China
| | - X J Zhou
- Department of Pathology, Jinling Hospital, Nanjing 210002, China
| | - L H Zhang
- Department of pathology, Affiliated Zhongda Hospital, Southeast University, Nanjing 210009, China
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16
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Jiang S, Jiang Y, Cao Y, Zhao Y, Liu H, Wang X, He Z, Song Z, Wang X, Liu G, Cui R. The use of pan-cancer analysis of ADAMTS9 expression in various cancer types. Epigenomics 2021; 13:253-256. [PMID: 33502246 DOI: 10.2217/epi-2020-0406] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Affiliation(s)
- Shijun Jiang
- Department of Biochemistry & Molecular Biology, Mudanjiang Medical University, Mudanjiang, Heilongjiang 157011, PR China.,Department of Clinical Laboratory, Daqing Medical College, Daqing, Heilongjiang 163311, PR China
| | - Ying Jiang
- Department of Biochemistry & Molecular Biology, Mudanjiang Medical University, Mudanjiang, Heilongjiang 157011, PR China
| | - Yingli Cao
- Department of pathology, Heilongjiang Nursing College, Harbin, Heilongjiang 150000, PR China
| | - Yiyang Zhao
- The 1st Clinical Medical College, Southern Medical University, Guangzhou, Guangdong 510000, PR China
| | - Hongfeng Liu
- Department of Biochemistry & Molecular Biology, Mudanjiang Medical University, Mudanjiang, Heilongjiang 157011, PR China
| | - Xiuli Wang
- Department of Biochemistry & Molecular Biology, Mudanjiang Medical University, Mudanjiang, Heilongjiang 157011, PR China
| | - Zikang He
- Department of Biochemistry & Molecular Biology, Mudanjiang Medical University, Mudanjiang, Heilongjiang 157011, PR China
| | - Zheyao Song
- Department of Biochemistry & Molecular Biology, Mudanjiang Medical University, Mudanjiang, Heilongjiang 157011, PR China
| | - Xingyun Wang
- Department of Biochemistry & Molecular Biology, Mudanjiang Medical University, Mudanjiang, Heilongjiang 157011, PR China
| | - Gang Liu
- Department of Biochemistry & Molecular Biology, Mudanjiang Medical University, Mudanjiang, Heilongjiang 157011, PR China
| | - Rongjun Cui
- Department of Biochemistry & Molecular Biology, Mudanjiang Medical University, Mudanjiang, Heilongjiang 157011, PR China
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17
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Li QR, Zhen Z, Na J, Gao L, Cao YL, Yuan Y. [Clinical analysis of children with cardiac syncope caused by anomalous origin of the left coronary artery from the right sinus]. Zhonghua Xin Xue Guan Bing Za Zhi 2020; 48:772-776. [PMID: 32957761 DOI: 10.3760/cma.j.cn112148-20191015-00631] [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 analysis the clinical characteristics and to summarize therapy experience of pediatric patients with cardiac syncope caused by anomalous origin of the left coronary artery from the right sinus (ALCA-R). Methods: We retrospectively analyzed the clinical data including clinical manifestations, myocardial injury biomarkers, radiological features, treatments and prognoses of pediatric patients with ALCA-R who were admitted to Beijing Children's Hospital from November 2015 to June 2018. Results: Four female patients were included in this analysis, age of onset was 7 to 14 years. All the patients presented with exercise-induced syncope and acute myocardial infarction. During the course, three patients presented with acute left heart failure, and one patient had history of sudden cardiac arrest. Laboratory data showed significant elevation of both the creatine kinase and troponin levels in four patients. All electrocardiogram (ECG) showed left main coronary artery occlusion, echocardiography suggested the possible anomalous origin of the left coronary artery in one child. Coronary CT angiography (CTA) revealed there was no coronary ostium in the left coronary sinus, and the left coronary artery had an anomalous origin from the right sinus. The left main coronary artery passed between the ascending artery and the root of the main pulmonary artery, which was compressed by these two large vessels. Two patients underwent cardiac magnetic resonance examination, which detected late gadolinium enhancement in ALCA-R with an interarterial course. Unroofing of the left coronary ostium (cut-back procedure) was performed in two patients, and the other two patients who were not operated were recommended to restrict their physical activities. During a regular follow-up period of 12-43 months, all the children survived without recurrent cardiovascular event. Conclusion: If an adolescent presents with exercise-induced syncope, acute myocardial infarction and even sudden death, and ECG shows left main coronary artery occlusion characteristics, we should consider the possibility of developmental abnormality of coronary artery, particularly the ALCA-R. Once diagnosed as ALCA-R, patients should be recommended to avoid strenuous activities,early recognition and surgical treatment are imperative for these patients.
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Affiliation(s)
- Q R Li
- Department of Cardiology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Z Zhen
- Department of Cardiology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - J Na
- Department of Cardiology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - L Gao
- Department of Cardiology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Y L Cao
- Department of Radiology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Y Yuan
- Department of Cardiology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
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18
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Hayat MA, Wu J, Cao Y. Unsupervised Bayesian learning for rice panicle segmentation with UAV images. Plant Methods 2020; 16:18. [PMID: 32123536 PMCID: PMC7035759 DOI: 10.1186/s13007-020-00567-8] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/11/2019] [Accepted: 02/10/2020] [Indexed: 05/17/2023]
Abstract
BACKGROUND In this paper, an unsupervised Bayesian learning method is proposed to perform rice panicle segmentation with optical images taken by unmanned aerial vehicles (UAV) over paddy fields. Unlike existing supervised learning methods that require a large amount of labeled training data, the unsupervised learning approach detects panicle pixels in UAV images by analyzing statistical properties of pixels in an image without a training phase. Under the Bayesian framework, the distributions of pixel intensities are assumed to follow a multivariate Gaussian mixture model (GMM), with different components in the GMM corresponding to different categories, such as panicle, leaves, or background. The prevalence of each category is characterized by the weights associated with each component in the GMM. The model parameters are iteratively learned by using the Markov chain Monte Carlo (MCMC) method with Gibbs sampling, without the need of labeled training data. RESULTS Applying the unsupervised Bayesian learning algorithm on diverse UAV images achieves an average recall, precision and F 1 score of 96.49%, 72.31%, and 82.10%, respectively. These numbers outperform existing supervised learning approaches. CONCLUSIONS Experimental results demonstrate that the proposed method can accurately identify panicle pixels in UAV images taken under diverse conditions.
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Affiliation(s)
- Md Abul Hayat
- Department of Electrical Engineering, University of Arkansas, Fayetteville, 72701 USA
| | - Jingxian Wu
- Department of Electrical Engineering, University of Arkansas, Fayetteville, 72701 USA
| | - Yingli Cao
- Department of Information and Electrical Engineering, Shenyang Agricultural University, Shenyang, 110041 China
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19
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Li QR, Zhen Z, Na J, Gao L, Cao YL, Yuan Y. [Analysis of four children with anomalous origin of the left coronary artery from the right sinus with interarterial course]. Zhonghua Er Ke Za Zhi 2020; 58:113-117. [PMID: 32102147 DOI: 10.3760/cma.j.issn.0578-1310.2020.02.009] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Objective: To investigate the clinical features and improve the diagnosis and treatment of anomalous origin of the left coronary artery from the right coronary sinus with an interarterial course (ALCA-R-IAC) between the ascending aorta and main pulmonary artery in children. Methods: A retrospective analysis of the clinical manifestation, laboratory test, radiological feature, treatment and prognosis were conducted in four female children presented with ALCA-R-IAC in Beijing Children's Hospital from November 2015 to June 2018. Results: The four girls with onset age of 7.5-14.7 years were diagnosed with ALCA-R-IAC by CT coronary angiography (CTCA). Four children presented with exercise-induced syncope and clinical manifestations of acute myocardial infarction including 3 patients with acute left heart failure, 1 cardiogenic shock and 1 cardiac arrest. Nervous system involvement was found in one patient. Troponin I increased significantly to 20.65-50.00 μg/L in the four patients. Electrocardiogram (ECG) developed signs of left main coronary artery involvement. Echocardiography revealed reduced left ventricular ejection fraction (LVEF) of 25%-45% in three children and suspected anomalous origin of the left coronary artery in one child. CTCA showed an anomalous left coronary artery originating from the right coronary sinus, which had an interarterial course between the aorta and pulmonary artery leading to a slim left main coronary trunk. Two children underwent unroofing procedure and the other two children in whom physical activities were restricted received conservative managements. During a regular follow-up period of 12-43 months, all the children survived without recurrent symptoms and had good prognosis. Conclusions: ALCA-R-IAC can present as exercise-related syncope and acute myocardial infarction, even sudden death in children and adolescents. CTCA is helpful to clarify the early diagnosis of ALCA-R-IAC. Surgical intervention is the main treatment for ALCA-R-IAC and strenuous physical activities should be avoided.
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Affiliation(s)
- Q R Li
- Department of Cardiology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Z Zhen
- Department of Cardiology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - J Na
- Department of Cardiology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - L Gao
- Department of Cardiology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Y L Cao
- Department of Radiology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
| | - Y Yuan
- Department of Cardiology, Beijing Children's Hospital, Capital Medical University, National Center for Children's Health, Beijing 100045, China
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20
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Yu F, Feng S, Du W, Wang D, Guo Z, Xing S, Jin Z, Cao Y, Xu T. A Study of Nitrogen Deficiency Inversion in Rice Leaves Based on the Hyperspectral Reflectance Differential. Front Plant Sci 2020; 11:573272. [PMID: 33343590 PMCID: PMC7738345 DOI: 10.3389/fpls.2020.573272] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Accepted: 10/20/2020] [Indexed: 05/05/2023]
Abstract
To achieve rapid, accurate, and non-destructive diagnoses of nitrogen deficiency in cold land japonica rice, hyperspectral data were collected from field experiments to investigate the relationship between the nitrogen (N) content and the difference in the spectral reflectance relationship and to establish the hyperspectral reflectance difference inversion model of differences in the N content of rice. In this study, the hyperspectral reflectance difference was used to invert the nitrogen deficiency of rice and provide a method for the implementation of precision fertilization without reducing the yield of chemical fertilizer. For the purpose of constructing the standard N content and standard spectral reflectance the principle of minimum fertilizer application at maximum yield was used as a reference standard, and the acquired rice leaf nitrogen content and leaf spectral reflectance were differenced from the standard N content and standard spectral reflectance to obtain N content. The difference and spectral reflectance differential were then subjected to discrete wavelet multiscale decomposition, successive projections algorithm, principal component analysis, and iteratively retaining informative variables (IRIVs); the results were treated as partial least squares (PLSR), extreme learning machine (ELM), and genetic algorithm-extreme learning machine (GA-ELM). The results of hyperspectral dimensionality reduction were used as input to establish the inverse model of N content differential in japonica rice. The results showed that the GA-ELM inversion model established by discrete wavelet multi-scale decomposition obtained the optimal results in data set modeling and training. Both the R2 of the training data set and the validation data set were above 0.68, and the root mean square errors (RMSEs) were <0.6 mg/g and were more predictive, stable, and generalizable than the PLSR and ELM predictive models.
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Affiliation(s)
- Fenghua Yu
- College of Information and Electrical Engineering, Shenyang Agricultural University, Shenyang, China
- Liaoning Engineering Research Center for Information Technology in Agriculture, Shenyang, China
| | - Shuai Feng
- College of Information and Electrical Engineering, Shenyang Agricultural University, Shenyang, China
| | - Wen Du
- College of Information and Electrical Engineering, Shenyang Agricultural University, Shenyang, China
- Liaoning Engineering Research Center for Information Technology in Agriculture, Shenyang, China
| | - Dingkang Wang
- College of Information and Electrical Engineering, Shenyang Agricultural University, Shenyang, China
| | - Zhonghui Guo
- College of Information and Electrical Engineering, Shenyang Agricultural University, Shenyang, China
| | - Simin Xing
- College of Information and Electrical Engineering, Shenyang Agricultural University, Shenyang, China
| | - Zhongyu Jin
- College of Information and Electrical Engineering, Shenyang Agricultural University, Shenyang, China
| | - Yingli Cao
- College of Information and Electrical Engineering, Shenyang Agricultural University, Shenyang, China
- Liaoning Engineering Research Center for Information Technology in Agriculture, Shenyang, China
| | - Tongyu Xu
- College of Information and Electrical Engineering, Shenyang Agricultural University, Shenyang, China
- Liaoning Engineering Research Center for Information Technology in Agriculture, Shenyang, China
- *Correspondence: Tongyu Xu,
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Cao YL, Zou LY, Zhang WY. [Effect of induced labor on delivery outcome of pregnant women undergoing vaginal trial of labor after cesarean section]. Zhonghua Fu Chan Ke Za Zhi 2019; 54:582-587. [PMID: 31550773 DOI: 10.3760/cma.j.issn.0529-567x.2019.09.002] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the effect of induced labor on delivery outcome of pregnant women undergoing vaginal trial of labor after cesarean section. Methods: Totally, 173 pregnant women undergoing vaginal trial of labor after cesarean from April 1st, 2016 to October 31st, 2017 were involved. According to whether or not induced labor, pregnant women were divided into induced labor group (n=47) and natural labor group (n=126). The two groups of the general situation, the situation of delivery and delivery outcome were compared. Further more, the induced labor group were divided into cesarean section patients (n=20) and vaginal delivery patients (n=27) based on pregnancy outcomes, induction situation and delivery situation were analyzed. Results: (1) The gestational weeks was 39.2±1.1 in induced labor group, 38.7±1.0 in natural labor group. The 1-minute Apgar score was 9.98±0.15 in induced labor group, and 9.87±0.60 in natural labor group. The neonatal weight was (3 497±426) g in induced labor group, and (3 288±350) g in natural labor group. The thickness of lower uterine segment at 36-39 weeks of pregnancy was (2.4±0.6) mm in induced labor group, (2.1±0.6) mm in natural labor group. There were obviously differences in the gestational week, the 1-minute Apgar score, the neonatal weight and the thickness of lower uterine segment at 36-39 weeks of pregnancy between the two groups (all P<0.05). There were no significant differences in 5-minute Apgar score, the interval between previous cesarean delivery, postpartum hemorrhage, fetal distress, and intrauterine infection, secondary uterine inertia, placental abruption and uterine ruption between the two groups (all P>0.05). (2) In induced labor group, the cervical score of cesarean section patients was 3.8±1.7, while the cervical score of vaginal delivery patients was 5.2±1.7. The induced labor days of cesarean section patients was (1.6±0.9) days, while the induced labor days of vaginal delivery patients was (1.2±0.4) days. There were obviously differences in the cervical score and the induced labor days among the two subgroup patients (all P<0.05). There were no significiant differences in Apgar score, neonatal weight, the thickness of lower uterine segment at 36-39 gestational weeks and the interval times of previous cesarean delivery between the two subgroup patients (P>0.05). Conclusion: Induction of labor does not reduce neonatal Apgar score, and does not increase the incidence of postpartum complications, and eliminats the increase of cesarean section rate caused by increased gestational weeks and fetal enlargement, and increases the vaginal delivery rate of pregnant women undergoing vaginal trail of labor after cesarean section.
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Affiliation(s)
- Y L Cao
- Department of Obstetrics, Beijing Obstetrics and Gynecology Hospital, Capital Medical University, Beijing 100026, China
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Cao YL, Wang GJ, Li W. [Meta-analysis of the outcomes of associating liver partition and portal vein ligation for staged hepatectomy versus portal vein embolization for the treatment of liver cancer with insufficient future liver remnant]. Zhonghua Wai Ke Za Zhi 2019; 57:540-548. [PMID: 31269618 DOI: 10.3760/cma.j.issn.0529-5815.2019.07.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the feasibility, safety and efficacy of associating liver partition and portal vein ligation for staged hepatectomy (ALPPS) and portal vein embolization (PVE) for the treatment of liver cancer with insufficient future liver remnant (FLR) . Methods: The data regarding the clinical controlled trials in comparison of ALPPS and PVE in liver surgery were collected from the both domestic and international publications searched through the datebases of PubMed, Cochrane Library, Embase, CNKI, and VIP.Meta analysis was performed by RevMan 5.3 software. Results: Total 10 studies with clinical control were analyzed (9 cohort studies and 1 randomized controlled study) .A total of 620 patients were included, with 165 cases in ALPPS group, 455 cases in PVE group.Results of Meta-analysis showed that there was statistically significant difference (P<0.05) between the two groups in the completion rate of two-steps surgery (OR=6.04, 95%CI: 2.97-12.31, Z=4.96) , FLR growth rate (MD=19.91, 95% CI: 8.64-31.18, Z=3.46) , two-steps surgical interval (MD=-30.48, 95%CI: -37.87--23.09, Z=8.09) , and R0 resection rate (OR=2.29, 95%CI=1.07-4.90, Z=2.13) .While there was no significant differences between the two groups in the mortality rate of postoperative within 90-days, postoperative the total complication rates, postoperative liver failure, and total hospital stay (all P>0.05) . Conclusions: Compared to the PVE procedures, ALPPS appears an effective treatment method for liver tumor with insufficient FLR.Therefore, the applications of ALPPS and PVE are limited and depending on further investigation.
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Affiliation(s)
- Y L Cao
- Department of General Surgery, the Fourth Hospital of Xi'an, Xi'an 710004, China
| | - G J Wang
- Department of Hepatobiliary-Pancreatic Surgery, China-Japan Union Hospital of Jilin University, Changchun 130033, China
| | - W Li
- Department of Hepatobiliary-Pancreatic Surgery, China-Japan Union Hospital of Jilin University, Changchun 130033, China
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Yang Y, Cao YL, Wang WH, Zhang YY, Zhao N, Wei D. [Retrospective cohort study on subtotal colonic bypass plus colostomy with antiperistaltic cecoproctostomy in the treatment of senile slow transit constipation]. Zhonghua Wei Chang Wai Ke Za Zhi 2019; 22:370-376. [PMID: 31054552 DOI: 10.3760/cma.j.issn.1671-0274.2019.04.010] [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 clinical efficacy of laparoscopic subtotal colonic bypass plus colostomy with antiperistaltic cecoproctostomy (SCBCAC) in the treatment of senile slow transit constipation. Methods: A retrospective cohort study was performed. Clinical data of 30 colonic slow transit constipation patients aged ≥70 years old undergoing laparoscopic SCBCAC from July 2012 to October 2016 (bypass plus colostomy group), and 28 patients undergoing laparoscopic subtotal colonic bypass with antiperistaltic cecoproctostomy (SCBAC) from February 2009 to June 2012 (bypass group) at our institute were collected. Efficacy was compared between the two procedures. Inclusion criteria: (1) meeting the Rome III diagnosis criteria for constipation; (2) confirmed diagnosis of slow transit constipation; (3) age ≥ 70 years old; (4) receiving non-surgical treatment for more than 5 years, and Wexner constipation score > 15; (5) follow-up for more than 2 years. Those with psychiatric symptoms or previous psychiatric history, obvious signs of outlet obstructive constipation, organic diseases of the colon and life-threatening cardiovascular diseases or cancer were excluded. In the bypass plus colostomy group, laparoscopy was performed via five trocars. The ileocecal junction and the ascending colon were mobilized and the ileocecal junction was pulled down to the pelvic inlet. The ascending colon was transected and the appendix was excised. The lateral peritoneum of the sigmoid colon and the rectal mesentery were dissected and the upper rectum was transected. The avil of a circular stapler was placed in the bottom of the cecum. The shaft of the stapler was placed in the rectum via the anal canal to complete end-to-side anastomosis (end rectum to lateral cecum). The end of the rectal-sigmoid colon was used for colostomy via an extraperitoneal approach to complete the operation. The following efficacy indexes were collected before surgery and 3, 6, 12, and 24 months after surgery: the number of daily bowel movements, the Wexner incontinence scale (WIS, 0-20, the lower the better), the Wexner constipation scale (WCS, 0-30, the lower the better), the gastrointestinal quality of life index (GIQLI, 0-144, the higher score, the better), abdominal pain intensity indicated by the numerical rating scale (NRS, 0-10, the lower score, the better), and the abdominal bloating score (ABS, 0-4, the lower score, the better). The complications defined as Clavien-Dindo class II or above were observed and recorded. Results: No significant differences in preoperative WCS, WIS, GIQLI, NRS, and ABS were observed between bypass plus colostomy group and bypass group (all P>0.05). All the patients successfully underwent laparoscopic surgery and no patient in either group experienced postoperative fecal incontinence. WCS and GIQLI were significantly improved (all P<0.001) at 3, 6, 12, and 24 months after surgery in both groups. At 12 months after surgery, the number of bowel movements was significantly less in bypass plus colostomy group than that in bypass group [(2.4±0.7) times vs. (3.4±1.2) times, t=4.048, P<0.001]. At 3, 6, 12 and 24 months after surgery, the improvement of GIQLI in bypass plus colostomy group was significantly better than that in bypass group (all P<0.001). At 24 months after surgery, GIQLI in bypass plus colostomy group and bypass group was 122.3±5.3 and 92.8±16.6, respectively, with a significant difference (t=9.276, P<0.001). At 12 and 24 months after surgery, NRS in bypass plus colostomy group was significantly better than that in bypass group (both P<0.001). At 24 months after surgery, NRS in bypass plus colostomy group was 0.9±0.7, while that in bypass group was 3.7±2.7. There was a significant difference between two groups (t=5.585, P<0.001). At 6, 12 and 24 months after surgery, the improvement of ABS in bypass plus colostomy group was also significantly better than that in bypass group. At 24 months after surgery, ABS in bypass plus colostomy group was 0.6±0.6, while that in bypass group was 2.5±1.0, with a significant difference between two groups (t=8.797, P<0.001). At 1 year after surgery, barium enema examination was performed in all the patients of both groups. The barium emptying time was (21.2±3.8) hours and (95.8±86.2) hours in bypass plus colostomy group and bypass group respectively. The former group was significantly better than the latter group (t=4.740, P<0.001). Conclusions: Laparoscopic SCBCAC is an effective and safe procedure for the treatment of senile slow transit constipation and can significantly improve prognosis. Its clinical efficacy is better than laparoscopic SCBAC.
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Affiliation(s)
- Y Yang
- Institute of Anal-Colorectal Surgery, the 989th Hospital of The Joint Logistics Support Force of Chinese PLA, Luoyang, Henan 471031, China
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He GL, Sun X, Tan J, He J, Chen X, Liu CX, Fan L, Zou L, Cao YL, Xiao M, Zhang XQ, Zhang GH, Zhou W, Cai Y, Zhao XL, Gao Y, Li HM, Liu XL, Zhang HP, Wang Y, Tang H, Yuan NX, Ding GF, Zhan F, Yin CX, Zhang JW, Yang HM, Qi YN, Liu XX. [Survey of prevalence of iron deficiency and iron deficiency anemia in pregnant women in urban areas of China]. Zhonghua Fu Chan Ke Za Zhi 2018; 53:761-767. [PMID: 30453423 DOI: 10.3760/cma.j.issn.0529-567x.2018.11.006] [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 investigate the prevalence of iron deficiency (ID) and iron deficiency anemia (IDA) in pregnant women in urban areas of China. Methods: The study was a national cross-sectional survey conducted from September 19th, 2016 to November 20th, 2016. According to the classification of the National Bureau of Statistics, all survey sites were set up in 6 regions of the country.Pregnant women were continuously selected using multistage stratified sampling. A total of 12 403 pregnant women were collected and examined for serum ferritin and hemoglobin levels. Results: The median serum ferritin level during pregnancy was 20.60 μg/L (11.78-36.98 μg/L) , the hemoglobin level was (118±12) g/L. With the progress of pregnancy, the levels of serum ferritin and hemoglobin decreased gradually. The median serum ferritin levels in the first, second trimester and third trimester were 54.30 μg/L (34.48-94.01 μg/L) , 28.60 μg/L (16.40-50.52 μg/L) , and 16.70 μg/L (10.20-27.00 μg/L) respectively (P<0.01) . The mean hemoglobin levels were (127±10) g/L, (119±11) g/L and (117±11) g/L respectively (P<0.01) . The prevalence of ID in urban pregnant women was 48.16% (5 973/12 403) , and IDA prevalence was 13.87% (1 720/12 403) . The prevalence of IDA in the first, second trimester and third trimester were 1.96% (20/1 019) , 8.40% (293/3 487) and 17.82% (1 407/7 897) ,respectively (P<0.01) . The prevalence of standardized ID and IDA were significantly different in various regions of China (P<0.01) . The standardized prevalence of ID were relatively higher in East China and Northeast China, 57.37% and 53.41% respectively, while it was the lowest in Southwest China, 30.51%. The standardized prevalence of IDA in South Central, Northwest, and East China were relatively high, 21.30%, 16.97% and 17.53% respectively, and the standardized prevalence of IDA in Southwest China was the lowest, 5.44%, the differents in various regions were significant (all P<0.01) . Conclusion: The current phenomenon of ID and IDA in pregnant women is still very common, and nutrition and health care during pregnancy should be strengthened.
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Affiliation(s)
- G L He
- Department of Obstetrics, West China Second University Hospital, Sichuan University, Chengdu 610041, China
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Cao YL, Li W. [Current status of ALPPS in the treatment of advanced liver cancer with insufficient future liver remnant]. Zhonghua Wai Ke Za Zhi 2018; 56:307-311. [PMID: 29562418 DOI: 10.3760/cma.j.issn.0529-5815.2018.e014] [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
Associating liver partition and portal vein ligation for staged hepatectomy (ALPPS) which represented a new two-steps liver resection procedures has been considered a revolutionary innovation for liver surgery technique in recent 10 years, it was first discovered by Professor Lang in Germany in 2007.The first step of the classic surgical procedures for portal vein ligation and liver parenchyma, until the future liver remnant (FLR) increased to a sufficient remnant then resect the right three-leaf liver.With the development of ALPPS, the method of hepatic parenchyma separation and isolation materials have been modified, which improves the safety of operation.ALPPS can speed up the regeneration of FLR in short period of time and therefore accurate assessment of FLR and liver reserve function preoperatively, which also can effectively prevent postoperative liver failure.However, it still remains controversy due to the high incidences of mobility and mortality perioperatively, how to solve this problem and chose the indications is the key.In China, 80% of liver cancer patients are associated with liver cirrhosis which the potential of FLR regeneration is limited. Whether ALPPS is applicable to the liver cancer patients in China remains to be further investigated, looking forward to a large number report of cases to give a more objective assessment.
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Affiliation(s)
- Y L Cao
- Department of Hepatobiliary-Pancreatic Surgery, China-Japan Union Hospital of Jilin University, Changchun 130033, China
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Dai C, Cao Y, Jia Y, Ding Y, Sheng R, Zeng M, Zhou J. Differentiation of renal cell carcinoma subtypes with different iodine quantification methods using single-phase contrast-enhanced dual-energy CT: areal vs. volumetric analyses. Abdom Radiol (NY) 2018; 43:672-678. [PMID: 28721478 DOI: 10.1007/s00261-017-1253-x] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [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] [Indexed: 12/17/2022]
Abstract
PURPOSE To investigate the possibility of iodine quantification during a single nephrographic phase in characterizing renal cell carcinoma (RCC) subtypes and if there is a difference between areal and volumetric iodine quantification methods. MATERIALS AND METHODS This retrospective study included 110 patients with 113 histopathologically confirmed RCCs scanned by dual-energy CT at the nephrographic phase before surgeries. For each lesion, an areal measurement of the iodine concentration with maximum enhancement (I max enhan) and the iodine concentration with maximum area among slices (I max area), as well as a volumetric iodine concentration of the whole-tumor (I volume), were evaluated by two independent radiologists. The diagnostic performances in a single nephrographic phase for characterizing RCC subtypes were evaluated, and three iodine quantification methods were compared with each other. RESULTS There were significant differences (clear cell vs. papillary and clear cell vs. chromophobe RCC) and no significant differences (papillary vs. chromophobe RCC) at the nephrographic phase in all three methods. The area under the receiver operating characteristic (ROC) curve (AUC) derived from the I max enhan for discriminating clear cell from papillary RCC was significantly higher than that derived from the I max area (P = 0.0357) and the I volume (P = 0.0206), and no significant differences existed among the three methods in distinguishing clear cell RCC from chromophobe RCC. The reliability of all three parameters was very high with an interclass correlation coefficient (ICC) exceeding 0.8. CONCLUSIONS Iodine quantification in a single nephrographic phase can be used to differentiate RCC subtypes preoperatively, and the areal maximum enhancement iodine quantification would probably be the most appropriate approach.
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Affiliation(s)
- Chenchen Dai
- Department of Radiology, Zhongshan Hospital, Fudan University, No. 180, Fenglin Road, Xuhui District, Shanghai, 200032, China
- Shanghai Institute of Medical Imaging, Fudan University, No. 180, Fenglin Road, Xuhui District, Shanghai, 200032, China
| | - Yingli Cao
- Department of Radiology, Zhongshan Hospital, Fudan University, No. 180, Fenglin Road, Xuhui District, Shanghai, 200032, China
- Shanghai Institute of Medical Imaging, Fudan University, No. 180, Fenglin Road, Xuhui District, Shanghai, 200032, China
| | - Yan Jia
- Siemens Healthineer, No. 278, Zhouzhu Road, Pudong New District, Shanghai, 201318, China
| | - Yuqin Ding
- Department of Radiology, Zhongshan Hospital, Fudan University, No. 180, Fenglin Road, Xuhui District, Shanghai, 200032, China
- Shanghai Institute of Medical Imaging, Fudan University, No. 180, Fenglin Road, Xuhui District, Shanghai, 200032, China
| | - Ruofan Sheng
- Department of Radiology, Zhongshan Hospital, Fudan University, No. 180, Fenglin Road, Xuhui District, Shanghai, 200032, China
- Shanghai Institute of Medical Imaging, Fudan University, No. 180, Fenglin Road, Xuhui District, Shanghai, 200032, China
| | - Mengsu Zeng
- Department of Radiology, Zhongshan Hospital, Fudan University, No. 180, Fenglin Road, Xuhui District, Shanghai, 200032, China
- Shanghai Institute of Medical Imaging, Fudan University, No. 180, Fenglin Road, Xuhui District, Shanghai, 200032, China
| | - Jianjun Zhou
- Department of Radiology, Zhongshan Hospital, Fudan University, No. 180, Fenglin Road, Xuhui District, Shanghai, 200032, China.
- Shanghai Institute of Medical Imaging, Fudan University, No. 180, Fenglin Road, Xuhui District, Shanghai, 200032, China.
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Abstract
Diabetic retinopathy (DR), an important complication of diabetes mellitus (DM), is not well understood. T helper cell balance (Th1/Th2) is involved in various autoimmune diseases; however, its role in DR is not understood. This study explores changes in Th1 and Th2 cytokine expression during DR. Blood samples were collected from 25 healthy volunteers (normal control group), 35 patients with type 2 DM (T2DM group) without DR, and 30 cases of T2DM patients with DR (DR group). Real-time PCR was used to measure mRNA expression of IL-2 and TNF-α, secreted from Th1 cells, and of IL-4 and IL-10, secreted from Th2 cells. We used ELISA to detect cytokine expression in serum to analyze the correlation between Th1 and Th2 cytokines. IL-2 and TNF-αmRNA and protein expression levels in the T2DM and DR groups were significantly higher than in the normal control group (P < 0.05). Compared with the T2DM group, the DR group had higher IL-2 and TNF-αlevels (P < 0.05). IL-4 and IL-10 levels were lower in the DR group compared with the normal and T2DM groups (P < 0.05), while T2DM showed no difference compared with the normal control (P > 0.05). IL-2 and TNF-αwere negatively correlated with IL-4 and IL-10 in the DR group, respectively. We found that Th1 cytokine secretion was higher and Th2 cytokines secretion was lower during DR, leading to a Th1/ Th2 imbalance, suggesting that Th1/Th2 imbalance is a side effect for DR occurrence and development.
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Affiliation(s)
- Y L Cao
- Department of Ophthalmology, Weifang Medical University, Weifang, Shandong Province, China
| | - F Q Zhang
- Department of Medical Ultrasonics, Affiliated Hospital of Weifang Medical University, Weifang, Shandong Province, China
| | - F Q Hao
- Department of Ophthalmology, Weifang Medical University, Weifang, Shandong Province, China
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Cao YL, Lv FC, Yu SC, Xu J, Yang X, Lu ZG. Simple template fabrication of porous MnCo2O4 hollow nanocages as high-performance cathode catalysts for rechargeable Li-O2 batteries. Nanotechnology 2016; 27:135703. [PMID: 26894375 DOI: 10.1088/0957-4484/27/13/135703] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
Porous MnCo2O4 hollow nanocages have been fabricated via a simple template method using carbon spheres as a template. The hydrophilic surface of carbon spheres can adsorb Mn(2+) and Co(2+) ions simultaneously to form Mn,Co-adsorbed carbon spheres. The calcination of Mn,Co-adsorbed carbon spheres can result in porous hollow nanocages of MnCo2O4. The MnCo2O4 hollow nanocages are built by nanoscale MnCo2O4 crystals. Because of the unique porous hollow nanostructures, the resulting MnCo2O4/KB cathode shows an efficient electrocatalytic performance in LiTFSI/TEGDME electrolyte-based Li-O2 batteries. The MnCo2O4 hollow nanocages as the cathode catalysts can deliver better performance during the discharge/charge processes and good cycle stability compared with that of the pure KB carbon. The preliminary results manifest that porous MnCo2O4 hollow nanocages are promising high-performance cathode catalysts for Li-O2 batteries. This template technique is a simple, general, low-cost and controllable method and can be extended to prepare other transition metal oxide hollow nanostructures.
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Affiliation(s)
- Y L Cao
- Physics Laboratory, Industrial Training Center, Shenzhen Polytechnic, Shenzhen, People's Republic of China
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Cao YL, Qiao M, Xu ZH, Zou GM, Ma LL, Li WG, Xu BH. [The clinical study of IgA nephropathy with severe chronic periodontitis and aggressive periodontitis]. Zhonghua Yi Xue Za Zhi 2016; 96:9-13. [PMID: 26792600 DOI: 10.3760/cma.j.issn.0376-2491.2016.01.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To explore the clinical characteristics of IgA nephropathy (IgAN) with severe chronic periodontitis and aggressive periodontitis. METHODS A total of 436 hospitalized patients who underwent renal needle biopsy in the department of nephrology of China-Japan Friendship Hospital from November 2013 to December 2014 were recruited in the study and blindly had periodontal examination. The patients were divided into IgAN group and non-IgAN group according to the renal pathology. The patients with IgAN were further categorized as non-periodontitis, chronic periodontitis and aggressive peridontitis group by Haas classification. The chronic periodontitis group was continually divided into mild, moderate and severe periodontitis group. The levels of interleukin (IL)-1β and IL-6 in gingival crevicular fluid were analyzed by enzyme-linked immunosorbent assays. RESULTS The prevalence of periodontitis in the study was 88.3% (385/436). The prevalence of chronic periodontitis and aggressive periodontitis were higher in patients with IgAN than those with non-IgAN (P<0.05). Degree of chronic periodontitis was correlated with pathologic grading of IgAN (r=0.48, P<0.001). Compared with IgAN patients with other types of periodontitis, those with severe chronic and aggressive periodontitis had more severe pathology, more frequent recurrent gross hematuria, higher levels of 24 h proteinuria, serum triglyceride and uric acid, higher periodontal probing depth and clinical attatchment level, as well as higer levels of IL-1β and IL-6, but had lower creatinine clearance rate (all P<0.05). CONCLUSIONS The prevalence of severe chronic and aggressive periodontitis was higher in patients with IgAN. Chronic periodontitis is correlated with the onset and development of IgAN. Patients with IgAN have worse condition with the aggravation of periodontitis.
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Affiliation(s)
- Y L Cao
- Department of Nephrology, China-Japan Friendship Hospital, Beijing 100029, China
| | - M Qiao
- Department of Stomatology, China-Japan Friendship Hospital, Beijing 100029, China
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Shi B, Sun J, Cao Y, Yang F, Wu Y, Liang X, Li L. Application of vacuum sealing drainage to the treatment of seawater-immersed blast-injury wounds. Int Wound J 2015; 13:1198-1205. [PMID: 25951775 DOI: 10.1111/iwj.12444] [Citation(s) in RCA: 8] [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] [Received: 11/16/2014] [Accepted: 02/27/2015] [Indexed: 12/18/2022] Open
Abstract
The aims of this study were to observe the effects of vacuum sealing drainage (VSD) with three different negative pressures on the wound healing rate, macrophage count and the expression of hyaluronic acid (HA) as well as its receptor CD44 in seawater-immersed blast-injury wounds (SIBIW) and to determine the optimal negative pressure value. In a minipig SIBIW model, different suction pressures and routine dressing were applied. Histological and immunohistochemical comparisons as well as molecular biology methods were performed to compare the wound healing conditions, macrophage count and the levels of HA and CD44. The wound healing rate of the VSD group was significantly higher than that of the control group, with the -120 mmHg group exhibiting the best effects. The macrophage count of the VSD group was higher than that of the control group. The HA level fluctuation was higher in the VSD group, with the -120 mmHg and the -180 mmHg groups showing the most significant fluctuation (P < 0·05). CD44 was expressed in the full-thickness wound-limbic tissues and was higher in the treatment group than that in the control group, with the -120 mmHg group having the most obvious expression. VSD significantly improved the healing ability and increased the macrophage count and the HA content. It also promoted CD44 expression. -120 mmHg is the optimal negative pressure value.
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Affiliation(s)
- Bing Shi
- Department of Plastic and Aesthetic Surgery, The 309th Hospital of PLA, Beijing, China
| | - Jingjing Sun
- Department of Plastic and Aesthetic Surgery, The 309th Hospital of PLA, Beijing, China
| | - Yingli Cao
- Department of Plastic and Aesthetic Surgery, The 309th Hospital of PLA, Beijing, China
| | - Fen Yang
- Department of Plastic and Aesthetic Surgery, The 309th Hospital of PLA, Beijing, China
| | - Yujia Wu
- Department of Plastic and Aesthetic Surgery, The 309th Hospital of PLA, Beijing, China
| | - Xianping Liang
- Department of Plastic and Aesthetic Surgery, The 309th Hospital of PLA, Beijing, China
| | - Li Li
- Department of Plastic and Aesthetic Surgery, The 309th Hospital of PLA, Beijing, China
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Zhou L, Cao Y, Bian T, Xiang Z, Li Y, Guo J, Lin Z, Wang G, Wang H. Number of Renal Columns Invaded by Tumor: A Novel Parameter for Predicting Complexity and Outcomes of Off-Clamp Open Partial Nephrectomy. J Am Coll Surg 2015; 221:539-49.e1. [PMID: 26141471 DOI: 10.1016/j.jamcollsurg.2015.02.033] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2015] [Revised: 02/25/2015] [Accepted: 02/25/2015] [Indexed: 11/30/2022]
Abstract
BACKGROUND The number of renal columns invaded by tumor (NRC) can determine the tumor complexity and perioperative outcomes of off-clamp open partial nephrectomy (OPN). We aimed to propose a novel and simple scoring system and examine the relationship between NRC and perioperative outcomes after off-clamp OPN. STUDY DESIGN We retrospectively evaluated 202 patients with contrast-enhanced CT imaging who underwent off-clamp OPN between January 2008 and November 2014. The number of renal columns invaded by tumor was correlated to baseline demographics and perioperative outcomes as a categorical variable using multivariable logistic regression analysis. RESULTS The mean tumor size was 2.5 cm (±1.3 cm). The number of renal columns invaded by tumor had the highest correlation coefficients with estimated blood loss (coefficient = 0.485; p < 0.001), operative time (coefficient = 0.310; p < 0.001), postoperative drainage (coefficient = 0.307; p < 0.001), and hospital length of stay (coefficient = 0.144; p = 0.041). Multivariable logistic regression demonstrated NRC to be an independent predictor of estimated blood loss ≥500 mL, postoperative renal function, operative time, and surgical complications. This predictive ability of NRC was superior to the R.E.N.A.L. (radius exophyic/endophytic nearness anterior/posterior location) score and PADUA (preoperative aspects and dimensions used for an anatomical) score. Spearman correlation coefficient of NRC calculations between the 2 observers was 0.941 (p < 0.001). CONCLUSIONS The number of renal columns invaded by tumor is a novel, intuitive, and practical parameter that could be used to quantify renal tumor complexity and predict the risk of perioperative outcomes after off-clamp OPN. Specifically, NRC correlates with estimated blood loss, operative time, surgical complications, renal function, and conversion to on-clamp. In the future, NRC can be integrated with other parameters, such as tumor location, to assemble a new scoring system.
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Affiliation(s)
- Lin Zhou
- Department of Urology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yingli Cao
- Department of Radiology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Tingchang Bian
- Department of Urology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Zhuoyi Xiang
- Department of Urology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Yaohui Li
- Department of Urology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Jianming Guo
- Department of Urology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Zongming Lin
- Department of Urology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Guomin Wang
- Department of Urology, Zhongshan Hospital, Fudan University, Shanghai, China
| | - Hang Wang
- Department of Urology, Zhongshan Hospital, Fudan University, Shanghai, China.
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Cao YL, Chen CF, Wang AW, Feng YB, Cheng HX, Zhang WW, Xin W. Changes of peripheral-type benzodiazepine receptors in the penumbra area after cerebral ischemia-reperfusion injury and effects of astragaloside IV on rats. Genet Mol Res 2015; 14:277-85. [PMID: 25729960 DOI: 10.4238/2015.january.23.1] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
This study investigated the changes in peripheral benzodiazepine receptors (PBRs) in the penumbra after cerebral ischemia-reperfusion injury, and examined the effects of astragaloside IV (AST) on PBRs in rats. Sixty Sprague-Dawley rats were divided into a sham operation group, a model group, and three AST treatment groups. Cerebral ischemic models were induced by the clue-blocked method. Neurological deficits were examined. The animals were sacrificed after 2 h of ischemia and 24 h of reperfusion, and mitochondria from the penumbra were purified. PBR density (Bmax) and affinity were measured by radioligand assays. Mitochondrial [(3)H]PK11195 binding was correlated with neurological deficits in rats. Compared to the model group, the 10 mg/kg AST group, 40 mg/kg AST group, and 100 mg/kg AST group had fewer neurological deficits. The effects in the 40 mg/ kg group did not significantly differ from the effects in the 100 mg/ kg group. Compared to the model group, the 10 mg/kg AST group, 40 mg/kg group, and 100 mg/kg group had a decreased Bmax in the penumbra. The Bmax decreased in the 40 mg/kg AST group and in the 100 mg/kg AST group compared with the 10 mg/kg group. The Bmax and neurological deficits in the 40 mg/kg did not significantly differ from those in the 100 mg/kg group. By contrast, the AST-treated rats showed no significant changes in the binding parameter equilibrium dissociation constant compared with those in the sham operation group and the model group. AST protects ischemic brain tissue by inhibiting PBR expression after cerebral ischemia.
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Affiliation(s)
- Y L Cao
- Department of Neurology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China
| | - C F Chen
- Department of Neurology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China
| | - A W Wang
- Department of Pharmacy, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China
| | - Y B Feng
- Department of Neurology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China
| | - H X Cheng
- Department of Pathology, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China
| | - W W Zhang
- Central Laboratory, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China
| | - W Xin
- Central Laboratory, Shandong Provincial Hospital Affiliated to Shandong University, Jinan, China
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Song F, Zhou J, Shi Y, Zeng M, Zhou K, Ding Y, Cao Y, Zhou J. [Value of MR imaging in the diagnosis of intraductal papillary neoplasm of the bile duct]. Zhonghua Zhong Liu Za Zhi 2015; 37:57-62. [PMID: 25877321] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
OBJECTIVE To analyze the value of MR imaging in diagnosis of intraductal papillary neoplasm of the bile duct (IPN-B). METHODS Fourteen patients with intraductal papillary neoplasms of the bile duct confirmed by surgical pathology were included in this study. The patients underwent MR routine plain scanning and enhancement scanning (including T1WI, T2WI with fat suppression, FALSH T1WI, and three-phase enhancement scanning), diffusion weighted imaging(DWI) and magnetic resonance cholangiopancreatography (MRCP) before operation. The imaging data were reviewed and analyzed retrospectively in comparison with the surgical and pathological results. RESULTS In these patients, 7 cases had tumors located in the left lobe, 2 cases had tumors in both the left and right lobes, 2 cases in the hepatic hilum, 2 cases in the common bile duct, and 1 case in both the right lobe and the common bile duct. Solitary or multiple intraductal masses could be found in 12 cases, with 11 cases appeared as papillary masses and one case as flat mass. In the other two cases the tumor was not visible (one case had too many stones, and in another case the tumor was too small). The tumors in the 12 cases showed hypointensity on T1WI and hyperintensity on T2WI. On the dynamic contrast-enhanced MRI, 11 cases showed mild and one showed moderate enhancement in arterial phase, and all the cases showed mildly and gradually delayed enhancement. On DWI, the lesion areas showed high signal intensity in all the cases, and the ADC value of the tumor area (1.697×10(-3)mm(2)/s) was significantly lower than that of the normal bile (3.973×10(-3)mm(2)/s) (t = -10.94, P < 0.05). Twelve cases demonstrated filling defects on primary MRCP coronary thin section images. On 3D-reconstruction MRCP images, 7 cases exhibited diffuse bile duct dilatation with the tumor areas more prominent, 3 cases exhibited aneurysmal bile dilatation, while the rest 4 cases exhibited segmental or lobar bile duct dilatation ( including 2 with invisible tumors ). In the 3 cases with aneurysmal bile dilatation, the multiple directions of MRCP images helped to find the communication between the aneurysmal dilatation and the bile duct. All the cases showed significant proximal bile duct dilatation (the extent of dilatation >100%), and 9 cases also showed distal bile duct dilatation. Bile duct stones were noted in 6 cases, 4 at the tumor area, and the other 2 away from the tumor area. No adjacent tissue invasion and no distal tissue or lymph node metastasis were observed. CONCLUSION Intraductal papillary neoplasms of the bile ducts have characteristic imaging appearances on MRI, and MRI is an important method helpful to making correct diagnosis.
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Affiliation(s)
- Fengxiang Song
- Department of Radiology, Zhongshan Hospital, Fudan University, Shanghai 200021, China
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Xu J, Feng S, Wang Q, Cao Y, Sun M, Zhang C. Four new furostanol saponins from the rhizomes and roots of Smilax scobinicaulis and their cytotoxicity. Molecules 2014; 19:20975-87. [PMID: 25517339 PMCID: PMC6271347 DOI: 10.3390/molecules191220975] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2014] [Revised: 11/21/2014] [Accepted: 12/02/2014] [Indexed: 11/16/2022] Open
Abstract
Four new furostanol saponins 1–4, along with two known furostanol saponins 5 and 6 and one known spirostanol saponin 7 were isolated from the rhizomes and roots of Smilax scobinicaulis. The structures of the new saponins were elucidated as 26-O-β-d-glucopyranoside-3β,26-dihydroxy-(25R)-5α-furostan-22-methoxyl-6-one-3-O-α-l-arabinopyranosyl-(1→6)-β-d-glucopyranoside (1), 26-O-β-d-glucopyranoside-3β,26-dihydroxy-(25R)-5α-furostan-22-methoxyl-6-one (2), 26-O-β-d-glucopyranoside-3β,26-dihydroxy-(25R)-5α-furostan-20(22)-en-6-one (3), 26-O-β-d-glucopyranoside-3β,23,26-trihydroxy-(23R, 25R)-5α-furostan-20(22)-en-6-one (4) on the basis of spectroscopic analysis. The isolated saponins were evaluated for cytotoxic activity against two human cancer cell lines including Hela (cervical carcinoma) and SMMC-7221 (hepatocellular carcinoma). Compounds 1 and 7 demonstrated cytotoxicity against the tested cell lines.
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Affiliation(s)
- Jing Xu
- College of Life Science, Northwest A&F University, Yangling 712100, Shaanxi, China.
| | - Shixiu Feng
- Key Laboratory of Southern Subtropical Plant Diversity, Shenzhen Fairy Lake Botanical Garden, Chinese Academy of Sciences, 160 Xianhu Road, Liantang, Shenzhen 518004, China.
| | - Qi Wang
- College of Life Science, Northwest A&F University, Yangling 712100, Shaanxi, China.
| | - Yingli Cao
- College of Life Science, Northwest A&F University, Yangling 712100, Shaanxi, China.
| | - Miao Sun
- College of Life Science, Northwest A&F University, Yangling 712100, Shaanxi, China.
| | - Cunli Zhang
- College of Life Science, Northwest A&F University, Yangling 712100, Shaanxi, China.
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Wang ZQ, Cao YL, Huang YF, Liu DQ, Li XF. Cross-leg repair of large soft-tissue defects in distal sites of the feet by distally based neuro-fasciocutaneous flaps with perforating vessels. Genet Mol Res 2014; 13:5484-91. [PMID: 25117303 DOI: 10.4238/2014.july.25.1] [Citation(s) in RCA: 4] [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] [Indexed: 11/03/2022]
Abstract
The objective of this study was to introduce a method for repairing large soft-tissue defects on the foot. Distally based neuro-fasciocutaneous flaps with perforating vessels were designed along the saphenous and sural neurovascular axes. The cutaneous perforating branches of the major arteries of the lower extremities were used as pedicles, which provided a rotation arc for the cross-leg flap to cover the large-sized soft-tissue defects on the foot. We transferred 6 neurocutaneous vascular axial flaps, including 4 saphenous neurocutaneous axial flaps (ranging from 25 x 13 to 17 x 9 cm in area) with posterior tibial perforators as the pedicle, and 2 sural neurocutaneous axial flaps (ranging from 29 x 12 to 18 x 7 cm in area) supplied by the perforating branches of the peroneal vessels. These 6 cases of neuro-fasciocutaneous flaps survived with satisfactory cosmetic appearances and functional results on follow-up at 8 to 17 months post-surgery. Placing a distally based neuro-fasciocutaneous cross-leg flap with perforating vessels is an effective method for repairing large-sized soft-tissue defects on the foot.
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Affiliation(s)
- Z Q Wang
- Department of Plastic and Reconstructive Surgery, The Third Hospital of Liao-Ning Medical College, Jinzhou, China
| | - Y L Cao
- Department of Plastic and Reconstructive Surgery, The Third Hospital of Liao-Ning Medical College, Jinzhou, China
| | - Y F Huang
- Department of Plastic and Reconstructive Surgery, The Third Hospital of Liao-Ning Medical College, Jinzhou, China
| | - D Q Liu
- Department of Plastic and Reconstructive Surgery, The Third Hospital of Liao-Ning Medical College, Jinzhou, China
| | - X F Li
- Department of Plastic and Reconstructive Surgery, The Third Hospital of Liao-Ning Medical College, Jinzhou, China
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Xu Z, Ba M, Zhou H, Cao Y, Tang C, Yang Y, He R, Liang Y, Zhang X, Li Z, Zhu L, Guo Y, Guo C. 2,4,5-Trisubstituted thiazole derivatives: a novel and potent class of non-nucleoside inhibitors of wild type and mutant HIV-1 reverse transcriptase. Eur J Med Chem 2014; 85:27-42. [PMID: 25072874 DOI: 10.1016/j.ejmech.2014.07.072] [Citation(s) in RCA: 30] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/24/2014] [Revised: 07/18/2014] [Accepted: 07/21/2014] [Indexed: 10/25/2022]
Abstract
Novel 2,4,5-trisubstituted thiazole derivatives (TSTs) were designed and synthesized as HIV-1 non-nucleoside reverse transcriptase inhibitors (NNRTIs). Among the thirty-eight synthesized target compounds, thirty TSTs showed potent inhibition against HIV-1 replication in wild type HIV-1 at submicromolar concentrations (from 0.046 to 9.59 μM). Compounds 21, 23 and 24 were also tested on seven NNRTI-resistant HIV-1 strains, and all exhibited inhibitory effects with fold changes in IC50 ranging from 2.6 to 111, which were better than those of nevirapine (15.6-fold-371-fold). Docking simulations of compound 24 revealed a reasonable mechanism for the binding mode, and three-dimensional quantitative structure activity relationship (3-DQSAR) studies on this novel series of TST further elucidated the structure-activity relationship (SAR). The results suggested the great potential of TSTs as a novel class of NNRTIs with antiviral efficacy and a good resistance profile.
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Affiliation(s)
- Zhongliang Xu
- Department of Chemistry, Capital Normal University, Beijing 100048, China
| | - Mingyu Ba
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Hua Zhou
- Department of Chemistry, Capital Normal University, Beijing 100048, China
| | - Yingli Cao
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Chaojun Tang
- Department of Chemistry, Capital Normal University, Beijing 100048, China
| | - Ying Yang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Ricai He
- Department of Chemistry, Capital Normal University, Beijing 100048, China
| | - Yu Liang
- Department of Chemistry, Capital Normal University, Beijing 100048, China
| | - Xuemei Zhang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Zhenzhong Li
- Department of Chemistry, Capital Normal University, Beijing 100048, China
| | - Lihong Zhu
- Department of Chemistry, Capital Normal University, Beijing 100048, China
| | - Ying Guo
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China.
| | - Changbin Guo
- Department of Chemistry, Capital Normal University, Beijing 100048, China.
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Zhou J, Ba M, Wang B, Zhou H, Bie J, Fu D, Cao Y, Xu B, Guo Y. Synthesis and biological evaluation of novel quinoxalinone-based HIV-1 reverse transcriptase inhibitors. Med Chem Commun 2014. [DOI: 10.1039/c3md00337j] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
A series of novel quinoxalinone derivatives were identified as potent anti-HIV-1 agents with IC50 values at 10−8 μmol L−1 level.
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Affiliation(s)
- Jie Zhou
- Beijing Key Laboratory of Active Substance Discovery and Druggability Evaluation
- Institute of Materia Medica
- Chinese Academy of Medical Sciences & Peking Union Medical College
- Beijing, China
| | - Mingyu Ba
- Beijing Key Laboratory of Active Substance Discovery and Druggability Evaluation
- Institute of Materia Medica
- Chinese Academy of Medical Sciences & Peking Union Medical College
- Beijing, China
| | - Bo Wang
- Beijing Key Laboratory of Active Substance Discovery and Druggability Evaluation
- Institute of Materia Medica
- Chinese Academy of Medical Sciences & Peking Union Medical College
- Beijing, China
- Hebei University of Science and Technology
| | - Haibo Zhou
- Beijing Key Laboratory of Active Substance Discovery and Druggability Evaluation
- Institute of Materia Medica
- Chinese Academy of Medical Sciences & Peking Union Medical College
- Beijing, China
| | - Jianbo Bie
- Beijing Key Laboratory of Active Substance Discovery and Druggability Evaluation
- Institute of Materia Medica
- Chinese Academy of Medical Sciences & Peking Union Medical College
- Beijing, China
| | - Decai Fu
- Hebei University of Science and Technology
- Shijiazhuang, China
| | - Yingli Cao
- Beijing Key Laboratory of Active Substance Discovery and Druggability Evaluation
- Institute of Materia Medica
- Chinese Academy of Medical Sciences & Peking Union Medical College
- Beijing, China
| | - Bailing Xu
- Beijing Key Laboratory of Active Substance Discovery and Druggability Evaluation
- Institute of Materia Medica
- Chinese Academy of Medical Sciences & Peking Union Medical College
- Beijing, China
| | - Ying Guo
- Beijing Key Laboratory of Active Substance Discovery and Druggability Evaluation
- Institute of Materia Medica
- Chinese Academy of Medical Sciences & Peking Union Medical College
- Beijing, China
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Xie L, Yang X, Pan D, Cao Y, Cao M, Lin G, Guan Z, Guo Y, Zhang L, Yang Z. Synthesis and Anti-HIV Activity of a Series of 6-Modified 2′,3′-Dideoxyguanosine and 2′,3′-Didehydro-2′,3′-dideoxyguanosine Analogs. CHINESE J CHEM 2013. [DOI: 10.1002/cjoc.201300440] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Zhu LM, Lei AW, Cao YL, Ai XP, Yang HX. An all-organic rechargeable battery using bipolar polyparaphenylene as a redox-active cathode and anode. Chem Commun (Camb) 2012; 49:567-9. [PMID: 23212556 DOI: 10.1039/c2cc36622c] [Citation(s) in RCA: 53] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Abstract
An all-organic rechargeable battery is realized by use of polyparaphenylene as both cathode- and anode-active material. This new battery can operate at a high voltage of 3.0 V with fairly high capacity, offering a renewable and cheaper alternative to conventional batteries.
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Affiliation(s)
- L M Zhu
- College of Chemistry and Molecular Science, Wuhan University, Wuhan 430072, China
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Yang Y, Cao YL, Liu HY, Yan H, Guo Y. [Shizukaol F: a new structural type inhibitor of HIV-1 reverse transcriptase RNase H]. Yao Xue Xue Bao 2012; 47:1011-1016. [PMID: 23162897] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
This study is to investigate the mechanism of action of lindenane disesquiterpenoid shizukaol F on HIV-1 replication. Real time quantity PCR, ELISA assay and fluorescence methods were used to test HIV-1 reverse transcription process, RNA-dependent DNA polymerase activity, and RNase H activity, respectively. It showed that shizukaol F inhibited LTR/Gag production of HIV-1 reverse transcription with an IC50 of 9.11 micromol x L(-1). This result is consistent with its inhibitory effect on HIV-1 replication (IC50 of 6.12 micromol x L(-1)). Mechanism studies showed that compound shizukaol F inhibited HIV-1 RT-RNase H with IC50 of 26.4 micromol x L(-1), but had no effect on HIV-1 RT RNA-dependent DNA polymerase activity. In conclusion, shizukaol F is a new structural type HIV-1 RNase H inhibitor. This discovery will provide a clue for new type of reverse transcriptase inhibitors development.
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Affiliation(s)
- Ying Yang
- State Key Laboratory of Bioactive Substance and Function of Natural Medicines, Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China
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Cao YL, Liu ZT, Chen LM, Tang YB, Luo LB, Lee ST, Lee CS. In-situ phosphrous doping in ZnTe nanowires with enhanced p-type conductivity. J Nanosci Nanotechnol 2012; 12:2353-2359. [PMID: 22755058 DOI: 10.1166/jnn.2012.5752] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
Single-crystalline undoped and phosphrous-doped (P-doped) p-type ZnTe nanowires (NWs) were synthesized via a simple vapor transport and deposition method. Both undoped and P-doped ZnTe nanowires have zinc blende structure and uniform geometry. X-ray diffraction peaks of the P-doped ZnTe nanowires show an obvious shift toward higher diffraction angle as compared with the undoped ZnTe nanowires. X-ray photoelectron spectroscopy confirms the existence of P-dopant in the ZnTe nanowires. Field-effect transistors based on both undoped and P-doped ZnTe nanowires were fabricated and characterized. Electrical measurements demonstrated that P-doping led to an enhancement in ptype conductivity of ZnTe nanowires. A defect reaction mechanism was proposed to explain the p-type behaviors of both undoped and P-doped ZnTe nanowires.
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Affiliation(s)
- Y L Cao
- Center of Super-Diamond and Advanced Films (COSDAF), Department of Physics and Materials Science, City University of Hong Kong, Hong Kong SAR, People's Republic of China
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Cao YL, Liu ZT, Chen LM, Tang YB, Luo LB, Jie JS, Zhang WJ, Lee ST, Lee CS. Single-crystalline ZnTe nanowires for application as high-performance green/ultraviolet photodetector. Opt Express 2011; 19:6100-8. [PMID: 21451633 DOI: 10.1364/oe.19.006100] [Citation(s) in RCA: 18] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
Single-crystalline ZnTe nanowires were prepared by a simple vapor transport and deposition method. Photodetectors of individual ZnTe nanowires were fabricated to study photoconductivity of the nanowires. It was observed the nanowire photodetectors show the highest visible-light photoconductive gains among all reported photodetectors based on 1D nanostructure semiconductors, including CdS, CdSe, ZnSe, etc. The high photosensitivity and relatively fast response speed are attributable to the high crystal quality of the ZnTe nanowires. These results reveal that such single-crystalline ZnTe nanowires are excellent candidates for optoelectronic applications.
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Affiliation(s)
- Y L Cao
- Center of Super-Diamond and Advanced Films (COSDAF) and Department of Physics and Materials Science, City University of Hong Kong, Hong Kong SAR, China
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Zhang L, Yue HY, Wu SG, Xu L, Zhang HJ, Yan HJ, Cao YL, Gong YS, Qi GH. Transport stress in broilers. II. Superoxide production, adenosine phosphate concentrations, and mRNA levels of avian uncoupling protein, avian adenine nucleotide translocator, and avian peroxisome proliferator-activated receptor-gamma coactivator-1alpha in skeletal muscles. Poult Sci 2010; 89:393-400. [PMID: 20181853 DOI: 10.3382/ps.2009-00281] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
The effect of transport stress on superoxide production and adenosine phosphate concentration in addition to avian uncoupling protein (avUCP), avian adenine nucleotide translocator, and avian peroxisome proliferator-activated receptor-gamma coactivator-1alpha mRNA levels of skeletal muscles in broilers was investigated. Arbor Acres chicks (n = 360, 46 d old, males) were randomly allotted to 1 of 5 treatments: unstressed control, 45-min (short-term) transport with 45-min (short-term) recovery, 45-min transport with 3-h (long-term) recovery, 3-h (long-term) transport with 45-min recovery, and 3-h transport with 3-h recovery. Each treatment consisted of 6 replicates with 12 birds each. All birds (except control group) were transported according to a designed protocol. Transport time affected reactive oxygen species production in the thigh muscle (P < 0.05), adenosine triphosphate (ATP) content and energy charge (EC) in both breast and thigh muscles (P < 0.05 for all 4 comparisons), ATP:adenosine diphosphate (ADP) ratio in the breast muscle (P < 0.05), and avUCP mRNA levels in the thigh muscle (P < 0.05). Long-term transport increased (P < 0.05) reactive oxygen species production, ATP content, ATP:ADP ratio, and EC in the thigh muscle, but it decreased ATP content, ATP:ADP ratio, and EC in the breast muscle. Long-term transport increased avUCP mRNA in the thigh muscle (P < 0.05). Long-term recovery increased the ATP (P < 0.05) and ADP (P < 0.05) concentrations, avian adenine nucleotide translocator mRNA (P < 0.05), and avian peroxisome proliferator-activated receptor-gamma coactivator-1alpha mRNA (P < 0.05) in the thigh muscle, whereas EC decreased (P < 0.05) in the breast muscle. There were interactions between transport and recovery time on ATP (P < 0.05), EC (P < 0.05), and avUCP mRNA level (P < 0.05) in the thigh muscle. This study suggests that long-term transport accelerates muscle energy metabolism and lipid peroxidation. A long-term recovery may help alleviate cellular damage and maintain meat quality by reducing the rate of energy metabolism and scavenging of free radicals formed.
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Affiliation(s)
- L Zhang
- Key Laboratory of Feed Biotechnology of Ministry of Agriculture, Feed Research Institute, Chinese Academy of Agricultural Sciences, Beijing 100081, China
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44
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Zhang C, Cao YL, Zhong W, Xiao JH, Guo Y. [Establishment of a cell-based 2009 H1N1 influenza neuraminidase inhibitors evaluation system]. Yao Xue Xue Bao 2010; 45:383-387. [PMID: 21351517] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
This study is to establish a cell-based model targeting to neuraminidase (NA) of the 2009 H1N1 influenza A virus. NA is an influenza virus structural protein with enzymatic activity of the cleavage of HA-sialic acid interaction to release new viral particles from cells. A model of HIV-1 (pNL4-3.Luc.R(-)E(-)) based pseudovirions packed with HA [hemagglutinin, A/VietNam/1203/2004 (H5N1)] and NA [A/California/04/2009 (H1N1)] was established to evaluate compounds activities on NA function. The viral release can be blocked by neuraminidase inhibitors, oseltamivir and oseltamivir carboxylate, with IC50 of (61 +/- 31) nmol L(-1) and (5.5 +/- 2.9) nmol L(-1) respectively. A point mutation of H275Y on NA leads oseltamivir-resistance. This corresponding mutation was introduced into the system which was also confirmed by oseltamivir and oseltamivir carboxylate.
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MESH Headings
- Cell Line, Tumor
- Drug Resistance, Viral/genetics
- Enzyme Inhibitors/pharmacology
- HEK293 Cells
- HIV-1/genetics
- Hemagglutinin Glycoproteins, Influenza Virus/genetics
- Hemagglutinin Glycoproteins, Influenza Virus/metabolism
- Humans
- Influenza A Virus, H1N1 Subtype/drug effects
- Influenza A Virus, H1N1 Subtype/genetics
- Influenza A Virus, H1N1 Subtype/metabolism
- Influenza A Virus, H5N1 Subtype/drug effects
- Influenza A Virus, H5N1 Subtype/genetics
- Influenza A Virus, H5N1 Subtype/metabolism
- Mutation
- Neuraminidase/antagonists & inhibitors
- Neuraminidase/genetics
- Neuraminidase/metabolism
- Oseltamivir/analogs & derivatives
- Oseltamivir/pharmacology
- Plasmids
- Transfection
- Virus Internalization
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Affiliation(s)
- Chao Zhang
- Institute of Materia Medica, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing 100050, China
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45
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Cao YL, Tang YB, Liu Y, Liu ZT, Luo LB, He ZB, Jie JS, Vellaisamy R, Zhang WJ, Lee CS, Lee ST. Coaxial nanocables of p-type zinc telluride nanowires sheathed with silicon oxide: synthesis, characterization and properties. Nanotechnology 2009; 20:455702. [PMID: 19834241 DOI: 10.1088/0957-4484/20/45/455702] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
Coaxial nanocables with a single-crystalline zinc telluride (ZnTe) nanowire core and an amorphous silicon oxide (SiO(x)) shell have been synthesized via a simple one-step chemical vapor deposition (CVD) method on gold-decorated silicon substrates. The single-crystal ZnTe nanowire core is in zinc-blende structure along the [111] direction, while the uniform SiO(x) shell fully covers the core with no observable pin-hole or crack. Formation mechanisms of the ZnTe-SiO(x) nanocables are discussed. The ZnTe nanowire core shows p-type electrical properties while the SiO(x) shell acts as an effective insulating layer. The ZnTe-SiO(x) nanocables may have potential applications in nanoscale devices, such as p-type FETs and nanosensors.
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Affiliation(s)
- Y L Cao
- Center of Super-Diamond and Advanced Films and Department of Physics and Materials Science, City University of Hong Kong, Hong Kong SAR, People's Republic of China
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46
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Song G, Yang S, Zhang W, Cao Y, Wang P, Ding N, Zhang Z, Guo Y, Li Y. Discovery of the First Series of Small Molecule H5N1 Entry Inhibitors. J Med Chem 2009; 52:7368-71. [DOI: 10.1021/jm900275m] [Citation(s) in RCA: 56] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Gaopeng Song
- Key Laboratory of Marine Drugs, The Ministry of Education of China, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
| | - Sen Yang
- Department of Pharmacology, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
- Department of Pharmacognosy, Medical College of Chinese People’s Armed Police Forces, Tianjin 300162, China
| | - Wei Zhang
- Key Laboratory of Marine Drugs, The Ministry of Education of China, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
| | - Yingli Cao
- Department of Pharmacology, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Peng Wang
- Key Laboratory of Marine Drugs, The Ministry of Education of China, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
| | - Ning Ding
- Key Laboratory of Marine Drugs, The Ministry of Education of China, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
| | - Zaihong Zhang
- Key Laboratory of Marine Drugs, The Ministry of Education of China, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
| | - Ying Guo
- Department of Pharmacology, Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
| | - Yingxia Li
- Key Laboratory of Marine Drugs, The Ministry of Education of China, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
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47
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Cao YL, Li SX, Chen H, Guo Y. [Establishment of pharmacological evaluation system for non-nucleoside reverse-transcriptase inhibitors resistant HIV-1]. Yao Xue Xue Bao 2009; 44:355-361. [PMID: 19545051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
Consistent non-nucleoside reverse-transcriptase inhibitors (NNRTIs) resistant HIV-1 strains occurred due to the clinical use for more than ten years of efavirenz (EFV), nevirapine (NVP), and delavirdine (DLV). In this study, we established nine cell-based pharmacological models according to most NNRTIs-resistant clinical tested strains, Resistant mutations were introduced into vector, pNL4-3.Luc.R-E-, by overlapping PCR. Then, pseudovirions were produced by co-transfection of VSV-G plasmid and pNL4-3.Luc.R-E- -mut. All nine recombinant VSVG/HIV-mut pseudovirions (VSVG/HIV-wt, VSVG/HIV(-K103N), VSVG/HIV(-Y181C), VSVG/HIV(-L100I,K103N), VSVG/HIV(-Y188L), VSVG/HIV(-K103N,Y181C), VSVG/HIV(-K103N,P225H), VSVG/HIV(-K103N,Y188L), VSVG/HIV(-K103N,G109A) and VSVG/HIV(-K103N,V108I)) had high efficient infectivity. Furthermore, they all showed resistant characteristics to EFV and NVP with IC50 changes consisting with clinical reports, not to nucleoside reverse-transcriptase inhibitors (AZT and d4T). This series safe cell-based model, which could be carried out in BSL-2 laboratory, can be used for evaluating NNRTIs candidates.
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Affiliation(s)
- Ying-li Cao
- Institute of Materia Medica, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100050, China
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Xu B, Sun Y, Guo Y, Cao Y, Yu T. Synthesis and biological evaluation of N4-(hetero)arylsulfonylquinoxalinones as HIV-1 reverse transcriptase inhibitors. Bioorg Med Chem 2009; 17:2767-74. [DOI: 10.1016/j.bmc.2009.02.039] [Citation(s) in RCA: 23] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2008] [Revised: 02/17/2009] [Accepted: 02/19/2009] [Indexed: 10/21/2022]
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Abstract
Micro- and nanocubes of carbon have been synthesized by laser ablation in liquid. The morphology and structure analyses indicated that these micro- and nanocubes are single crystals with a body-centered cubic structure with a lattice constant of 5.46 angstroms, which is so-called C 8-like structure, and they have a slightly truncated shape bounded mainly by (200) facets. A blue-purple luminescence at room temperature was observed in the cathodoluminescence spectrum of the synthesized single micro- and nanocube of carbon, which exhibited that this unique carbon nanomaterial is a new semiconductor with blue luminescence. The physical and chemical mechanisms of the synthesis of carbon micro- and nanocubes were pursued upon laser ablation in liquid.
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Affiliation(s)
- P Liu
- State Key Laboratory of Optoelectronic Materials and Technologies, Institute of Optoelectronic and Functional Composite Materials, Zhongshan University, Guangzhou, People's Republic of China
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Qian GR, Shi J, Cao YL, Xu YF, Chui PC. Properties of MSW fly ash-calcium sulfoaluminate cement matrix and stabilization/solidification on heavy metals. J Hazard Mater 2008; 152:196-203. [PMID: 17728061 DOI: 10.1016/j.jhazmat.2007.06.118] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/22/2007] [Revised: 06/26/2007] [Accepted: 06/26/2007] [Indexed: 05/17/2023]
Abstract
In this paper, investigations were undertaken to formulate the properties of fly ash-calcium sulfoaluminate (CSA) cement matrix by blending MSW fly ash with CSA cement. The compressive strength, pore structure, hydration phases, and leaching behavior of Zn and Pb doped MSW fly ash-CSA cement matrices were determined by XRD, MIP, DSC, FTIR, EDX, TCLP leaching test and other experiments. The results showed that the addition of MSW fly ash to form fly ash-CSA cement matrix reduced the compressive strengths of matrices and made the pore distribution of matrices coarser, compared to that of pure CSA cement matrix. However, fly ash-CSA cement matrix could effectively immobilize high concentration of heavy metal such as lead and zinc with much lesser leaching of TCLP. Besides ettringite AFt, Friedel phase was a new hydration phase formed in the matrix. The formation of these hydration phases was responsible for huge reservoir of heavy metal stabilization by chemical fixing. Therefore, it could be postulated that MSW fly ash-CSA cement matrix was a potential new constituent of S/S matrix for high concentration of heavy metals such as Zn and Pb ions.
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Affiliation(s)
- G R Qian
- School of Environmental Engineering, Shanghai University, PR China.
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