1
|
Zhu FH, Chen XY, Hou LL, Dong JH, Liu HW, Zhu LQ, Chen F. Limosilactobacillus reuteri peptidoglycan alleviates aflatoxin B 1-induced toxicity through adsorbing toxins and improving growth, antioxidant status, immunity and liver pathological changes in chicks. Br Poult Sci 2024:1-9. [PMID: 38466183 DOI: 10.1080/00071668.2024.2316228] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2023] [Accepted: 12/08/2023] [Indexed: 03/12/2024]
Abstract
1. The objective of this study was to investigate the protective effects of a peptidoglycan produced by Limosilactobacillus reuteri against aflatoxin B1 (AFB1) induced toxicity in vitro and in vivo in broiler chicks.2. Toxin adsorption experiments were carried out firstly in vitro. These experiments indicated that the absorption efficiency of the peptidoglycan for AFB1 was 64.3-75.9%.3. In the in vivo experiments, Hy-Line Brown chicks were fed a diet containing AFB1 at 71.43 µg/kg with and without peptidoglycan supplementation at concentrations of 100, 200, or 300 g/kg feed from 0-42 d of age.4. The peptidoglycan supplementation in AFB1-contaminated diets resulted in significant improvements in terms of average daily gain, feed intake, feed conversion ratio, white blood cell count, haemoglobin content, glutathione peroxidase activity, immunoglobulin (Ig) A, IgG, IgM and Newcastle disease virus antibody titres (p < 0.05) and diminished liver steatosis.5. In conclusion, peptidoglycan supplementation alleviated AFB1-induced toxicity through adsorbing toxins and improving growth performance, antioxidant ability, immunity and liver pathological changes in chicks. The optimal supplemental dose was 200 mg/kg in feed.
Collapse
Affiliation(s)
- F H Zhu
- Laboratory of Animal Nutritional Metabolic and Poisoning Diseases, Qingdao Agricultural University, Qingdao, Shandong, China
- College of Animal Science, Qingdao Agricultural University, Qingdao, China
| | - X Y Chen
- Laboratory of Animal Nutritional Metabolic and Poisoning Diseases, Qingdao Agricultural University, Qingdao, Shandong, China
- College of Veterinary Medicine, Qingdao Agricultural University, Qingdao, China
| | - L L Hou
- Laboratory of Animal Nutritional Metabolic and Poisoning Diseases, Qingdao Agricultural University, Qingdao, Shandong, China
- College of Veterinary Medicine, Qingdao Agricultural University, Qingdao, China
| | - J H Dong
- Laboratory of Animal Nutritional Metabolic and Poisoning Diseases, Qingdao Agricultural University, Qingdao, Shandong, China
- College of Animal Science, Qingdao Agricultural University, Qingdao, China
| | - H W Liu
- College of Animal Science, Qingdao Agricultural University, Qingdao, China
| | - L Q Zhu
- Laboratory of Animal Nutritional Metabolic and Poisoning Diseases, Qingdao Agricultural University, Qingdao, Shandong, China
- College of Veterinary Medicine, Qingdao Agricultural University, Qingdao, China
| | - F Chen
- Laboratory of Animal Nutritional Metabolic and Poisoning Diseases, Qingdao Agricultural University, Qingdao, Shandong, China
- College of Veterinary Medicine, Qingdao Agricultural University, Qingdao, China
| |
Collapse
|
2
|
Guan SY, Liang ZY, Qiu MH, Liu HW, Xu K, Ma YY, Wang B, Jing QM, Han YL. [Efficacy and safety of extracorporeal membrane oxygenation-supported percutaneous coronary intervention in chronic coronary total occlusion patients with reduced left ventricular ejection fraction]. Zhonghua Xin Xue Guan Bing Za Zhi 2023; 51:984-989. [PMID: 37709716 DOI: 10.3760/cma.j.cn112148-20230808-00060] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 09/16/2023]
Abstract
Objective: To investigate the feasibility and safety of extracorporeal membrane oxygenation (ECMO)-supported percutaneous coronary intervention (PCI) in chronic coronary total occlusion (CTO) patients with reduced left ventricular ejection fraction (LVEF). Methods: The CTO patients with LVEF≤35% and undergoing CTO-PCI assisted by ECMO in the General Hospital of Northern Theater Command from December 2018 to March 2022 were enrolled in this study. The post-procedure complications, changes of LVEF from pre-procedure to post-procedure during hospitalization, and the incidence of all-cause mortality and changes of LVEF after discharge were assessed. Results: A total of 17 patients aged (59.4±11.8) years were included. There were 14 males. The pre-procedure LVEF of these patients were (29.00±4.08)%. Coronary angiography results showed that there were 29 CTO lesions in these 17 patients. There was 1 in left main coronary artery, 7 in left anterior descending artery, 11 in left circumflex artery, and 10 in right coronary artery. ECMO was implanted in all patients before procedure. Among 25 CTO lesions attempted to cross, 24 CTO were successfully implanted with stents. All patients underwent successful PCI for at least one CTO lesion. The number of drug-eluting stents implantation per patient were 4.6±1.3. After procedure, there were 8 patients with hemoglobin decreased>20 g/L, and 1 patient with ECMO-access-site related bleeding. The LVEF value at a median duration of 2.5 (2.0-5.5) days after procedure significantly increased to (38.73±7.01)% (P<0.001 vs. baseline). There were no in-hospital deaths. Patients were followed up for 360 (120, 394) days after discharge, 3 patients died (3/17). The LVEF value was (41.80±7.32)% at 155 (100, 308) days after discharge, which was significantly higher than the baseline value (P<0.001). Conclusion: The results of present study demonstrate that it is feasible, efficient and safe to perform ECMO)-supported CTO-PCI in CTO patients with reduced LVEF.
Collapse
Affiliation(s)
- S Y Guan
- Department of Cardiology, General Hospital of Northern Theater Command, Shenyang 110016, China
| | - Z Y Liang
- Department of Cardiology, General Hospital of Northern Theater Command, Shenyang 110016, China
| | - M H Qiu
- Department of Cardiology, General Hospital of Northern Theater Command, Shenyang 110016, China
| | - H W Liu
- Department of Cardiology, General Hospital of Northern Theater Command, Shenyang 110016, China
| | - K Xu
- Department of Cardiology, General Hospital of Northern Theater Command, Shenyang 110016, China
| | - Y Y Ma
- Department of Cardiology, General Hospital of Northern Theater Command, Shenyang 110016, China
| | - B Wang
- Department of Cardiology, General Hospital of Northern Theater Command, Shenyang 110016, China
| | - Q M Jing
- Department of Cardiology, General Hospital of Northern Theater Command, Shenyang 110016, China
| | - Y L Han
- Department of Cardiology, General Hospital of Northern Theater Command, Shenyang 110016, China
| |
Collapse
|
3
|
Hao YY, Liu HW, Zhao J, Feng J, Hao X, Huang Q, Gu B, Liu YR. Plastispheres as hotspots of microbially-driven methylmercury production in paddy soils. J Hazard Mater 2023; 457:131699. [PMID: 37270960 DOI: 10.1016/j.jhazmat.2023.131699] [Citation(s) in RCA: 1] [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: 02/27/2023] [Revised: 05/09/2023] [Accepted: 05/23/2023] [Indexed: 06/06/2023]
Abstract
Microplastics (MPs) as emerging contaminants have accumulated extensively in agricultural ecosystems and are known to exert important effects on biogeochemical processes. However, how MPs in paddy soils influence the conversion of mercury (Hg) to neurotoxic methylmercury (MeHg) remains poorly understood. Here, we evaluated the effects of MPs on Hg methylation and associated microbial communities in microcosms using two typical paddy soils in China (i.e., yellow and red soils). Results showed that the addition of MPs significantly increased MeHg production in both soils, which could be related to higher Hg methylation potential in the plastisphere than in the bulk soil. We found significant divergences in the community composition of Hg methylators between the plastisphere and the bulk soil. In addition, the plastisphere had higher proportions of Geobacterales in the yellow soil and Methanomicrobia in the red soil compared with the bulk soil, respectively; and plastisphere also had more densely connected microbial groups between non-Hg methylators and Hg methylators. These microbiota in the plastisphere are different from those in the bulk soil, which could partially account for their distinct MeHg production ability. Our findings suggest plastisphere as a unique biotope for MeHg production and provide new insights into the environment risks of MP accumulation in agricultural soils.
Collapse
Affiliation(s)
- Yun-Yun Hao
- National Key Laboratory of Agricultural Microbiology and College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China
| | - Hui-Wen Liu
- National Key Laboratory of Agricultural Microbiology and College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China
| | - Jiating Zhao
- Department of Environmental Science, Zhejiang University, Hangzhou 310058, China
| | - Jiao Feng
- National Key Laboratory of Agricultural Microbiology and College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China
| | - Xiuli Hao
- National Key Laboratory of Agricultural Microbiology and College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China
| | - Qiaoyun Huang
- National Key Laboratory of Agricultural Microbiology and College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China; Hubei Key Laboratory of Soil Environment and Pollution Remediation, Huazhong Agricultural University, Wuhan 430070, China
| | - Baohua Gu
- Environmental Sciences Division, Oak Ridge National Laboratory, Oak Ridge, TN 37831, USA
| | - Yu-Rong Liu
- National Key Laboratory of Agricultural Microbiology and College of Resources and Environment, Huazhong Agricultural University, Wuhan 430070, China; Hubei Key Laboratory of Soil Environment and Pollution Remediation, Huazhong Agricultural University, Wuhan 430070, China.
| |
Collapse
|
4
|
Zhou TN, Li MC, Wang YS, Liu HW, Jing QM, Wang XZ, Han YL. [Clinical characteristics and prognostic analysis of female patients with Stanford type B aortic dissection]. Zhonghua Xin Xue Guan Bing Za Zhi 2023; 51:172-179. [PMID: 36789597 DOI: 10.3760/cma.j.cn112148-20221012-00797] [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: 02/16/2023]
Abstract
Objective: To explore the clinical characteristics and prognostic factors of female patients with Stanford type B aortic dissection. Methods: This is a single-centre retrospective study. Consecutive patients diagnosed with Stanford type B aortic dissection in General Hospital of Northern Theater Command from June 2002 to August 2021 were enrolled, and grouped based on sex. According to the general clinical conditions and complications of aortic dissection tear, patients were treated with thoracic endovascular aortic repair, surgery, or optimal medication. The clinical characteristics and aortic imaging data of the patients at different stages were collected, adverse events including all-cause deaths, stroke, and occurrence of aortic-related adverse events were obtained during hospitalization and within 30 days and at 1 and 5 years after discharge. According to the time of death, death was classified as in-hospital death, out-of-hospital death, and in-hospital death was divided into preoperative death, intraoperative death and postoperative death. According to the cause of death, death was classified as aortic death, cardiac death and other causes of death. Aortic-related adverse events within 30 days after discharge included new paraplegia, post-luminal repair syndrome, and aortic death; long-term (≥1 year after discharge) aortic-related adverse events included aortic death, recurrent aortic dissection, endoleak and distal ulcer events. The clinical characteristics, short-term and long-term prognosis was compared between the groups. Logistic regression analysis was used to explore the association between different clinical factors and all-cause mortality within 30 days in female and male groups separately. Results: A total of 1 094 patients with Stanford type B aortic dissection were enrolled, mean age was (53.9±12.1) years, and 861 (78.7%) were male and 233 (21.3%) were female. (1) Clinical characteristics: compared with male patients, female patients were featured with older average age, higher proportion of aged≥60 years old, back pain, anemia, optimal medication treatment, and higher cholesterol level; while lower proportion of smoking and drinking history, body mass index, calcium antagonists use, creatine kinase level, and white blood cell count (all P<0.05). However, there was no significant difference in dissection tear and clinical stage, history of coronary heart disease, diabetes, hypertension, and cerebrovascular disease between female and male patients (all P>0.05). (2) Follow-up result: compared with male patients, female patients had a higher rate of 30-day death [6.9% (16/233) vs. 3.8% (33/861), P=0.047], in-hospital death (5.6% (13/233) vs. 2.7% (23/861), P=0.027), preoperative death (3.9% (9/233) vs. 1.5% (12/861), P=0.023) and aorta death (6.0% (14/233) vs. 3.1% (27/861), P=0.041). The 1-year and 5-year follow-up results demonstrated that there were no significant differences in death, cerebrovascular disease, and aorta-related adverse events between the two groups (all P>0.05). (3) Prognostic factors: the results of the univariate logistic regression analysis showed that body mass index>24 kg/m2 (HR=1.087, 95%CI 1.029-1.149, P=0.013), history of anemia (HR=2.987, 95%CI 1.054-8.468, P=0.032), hypertension (HR=1.094, 95%CI 1.047-1.143, P=0.040) and troponin-T>0.05 μg/L (HR=5.818, 95%CI 1.611-21.018, P=0.003)were associated with an increased risk of all-cause mortality within 30 days in female patients. Conclusions: Female patients with Stanford type B aortic dissection have specific clinical characteristics, such as older age at presentation, higher rates of anemia and combined back pain, and higher total cholesterol levels. The risk of death within 1 month is higher in female patients than in male patients, which may be associated with body mass index, hypertension, anemia and troponin-T, but the long-term prognosis for both female and male patients is comparable.
Collapse
Affiliation(s)
- T N Zhou
- Department of Cardiology, General Hospital of Northern Theater Command, Shenyang 110016, China
| | - M C Li
- Department of Cardiology, General Hospital of Northern Theater Command, Shenyang 110016, China
| | - Y S Wang
- Department of Cardiology, General Hospital of Northern Theater Command, Shenyang 110016, China
| | - H W Liu
- Department of Cardiology, General Hospital of Northern Theater Command, Shenyang 110016, China
| | - Q M Jing
- Department of Cardiology, General Hospital of Northern Theater Command, Shenyang 110016, China
| | - X Z Wang
- Department of Cardiology, General Hospital of Northern Theater Command, Shenyang 110016, China
| | - Y L Han
- Department of Cardiology, General Hospital of Northern Theater Command, Shenyang 110016, China
| |
Collapse
|
5
|
Choi DH, Liu HW, Jung YH, Ahn J, Kim JA, Oh D, Jeong Y, Kim M, Yoon H, Kang B, Hong E, Song E, Chung S. Analyzing angiogenesis on a chip using deep learning-based image processing. Lab Chip 2023; 23:475-484. [PMID: 36688448 DOI: 10.1039/d2lc00983h] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/17/2023]
Abstract
Angiogenesis, the formation of new blood vessels from existing vessels, has been associated with more than 70 diseases. Although numerous studies have established angiogenesis models, only a few indicators can be used to analyze angiogenic structures. In the present study, we developed an image-processing pipeline based on deep learning to analyze and quantify angiogenesis. We utilized several image-processing algorithms to quantify angiogenesis, including a deep learning-based cell nuclear segmentation algorithm and image skeletonization. This method could quantify and measure changes in blood vessels in response to biochemical gradients using 16 indicators, including length, width, number, and nuclear distribution. Moreover, this procedure is highly efficient for the three-dimensional quantitative analysis of angiogenesis and can be applied to diverse angiogenesis investigations.
Collapse
Affiliation(s)
- Dong-Hee Choi
- School of Mechanical Engineering, Korea University, Seoul, 02841, Korea.
| | - Hui-Wen Liu
- School of Mechanical Engineering, Korea University, Seoul, 02841, Korea.
| | - Yong Hun Jung
- School of Mechanical Engineering, Korea University, Seoul, 02841, Korea.
| | - Jinchul Ahn
- School of Mechanical Engineering, Korea University, Seoul, 02841, Korea.
| | - Jin-A Kim
- School of Mechanical Engineering, Korea University, Seoul, 02841, Korea.
| | - Dongwoo Oh
- KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul, 02841, Korea
| | - Yeju Jeong
- School of Mechanical Engineering, Korea University, Seoul, 02841, Korea.
| | - Minseop Kim
- KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul, 02841, Korea
| | - Hongjin Yoon
- School of Mechanical Engineering, Korea University, Seoul, 02841, Korea.
| | - Byengkyu Kang
- School of Mechanical Engineering, Korea University, Seoul, 02841, Korea.
| | - Eunsol Hong
- School of Mechanical Engineering, Korea University, Seoul, 02841, Korea.
| | | | - Seok Chung
- School of Mechanical Engineering, Korea University, Seoul, 02841, Korea.
- KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul, 02841, Korea
- Center for Brain Technology, Brain Science Institute, Korea Institute of Science and Technology (KIST), Seoul 02792, Korea
| |
Collapse
|
6
|
Qiu MH, Li Y, Xu K, Wang B, Liu HW, Zhou WW, Zhang J, Pei YF, Song Y, Han YL. [Key data elements for clinical management and outcomes of patients with coronary artery disease: definitions from Coronary Artery Disease and Creative Antithrombotic Clinical Research Collaboration (CardiaCare)]. Zhonghua Xin Xue Guan Bing Za Zhi 2021; 49:1082-1088. [PMID: 34775717 DOI: 10.3760/cma.j.cn112148-20210824-00726] [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 develop a set of data elements and standardized definitions of Coronary Artery Disease and Creative Antithrombotic Clinical Research Collaboration (CardiaCare), aiming to facilitate the exchange of disparate data sources, enhance the abilities to support multicenter researches, and subsequently ensure the databases use under standardized process and criteria. Methods: The Cardiacare writing committee members reviewed data elements and definitions from published guidelines, clinical trials, databases, and standardized documents, then determined the data elements and standardized definitions, which should be included in CardiaCare. The writing committee also considered the specific domestic clinical management strategies during the establishment of Cardiacare. The resulting documents provide a series of key data elements and standardized definitions used in the management of coronary artery disease patients. Key data elements from CardiaCare could be sorted by clinical management flowsheet and outcome from hospitalization to long-term follow-up. Results: The Cardiacare standardized set comprised 864 data elements from admission to post-hospital follow-up visit. There were 8 tables in the documents, including demographic and admission information (23 elements), medical history and risk factors (102 elements), clinical presentations and diagnosis (22 elements), diagnostic and laboratory tests (111 elements), interventional diagnosis and treatment (118 elements), pharmacological therapy (213 elements), clinical outcomes (161 elements), and special subpopulations (114 elements: 87 elements for transcatheter valve replacement and 27 elements with cardiac rehabilitation). Conclusions: The Cardiacare standardized data elements set could provide support for real-world clinical research in consecutive data collection and databases mining. A wider applicability in various settings of CardiaCare needs to be explored further.
Collapse
Affiliation(s)
- M H Qiu
- Department of Cardiology, General Hospital of Northern Theater Command, Shenyang 110016, China
| | - Y Li
- Department of Cardiology, General Hospital of Northern Theater Command, Shenyang 110016, China
| | - K Xu
- Department of Cardiology, General Hospital of Northern Theater Command, Shenyang 110016, China
| | - B Wang
- Department of Cardiology, General Hospital of Northern Theater Command, Shenyang 110016, China
| | - H W Liu
- Department of Cardiology, General Hospital of Northern Theater Command, Shenyang 110016, China
| | - W W Zhou
- Department of Cardiology, General Hospital of Northern Theater Command, Shenyang 110016, China
| | - J Zhang
- Department of Cardiology, General Hospital of Northern Theater Command, Shenyang 110016, China
| | - Y F Pei
- Alibaba Health Information Technology, Beijing 100000, China
| | - Y Song
- Alibaba Health Information Technology, Beijing 100000, China
| | - Y L Han
- Department of Cardiology, General Hospital of Northern Theater Command, Shenyang 110016, China
| |
Collapse
|
7
|
Wang SY, Yang XD, Gao HY, Xing JY, Hu Q, Huang TT, Wu P, Zhao YT, Liu HW, Liu WY, Wang HN, Zhou R, Chu L. [Analysis of components of proteins from Echinococcus granulosus cyst fluid]. Zhongguo Xue Xi Chong Bing Fang Zhi Za Zhi 2021; 33:476-482. [PMID: 34791845 DOI: 10.16250/j.32.1374.2021111] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
OBJECTIVE To analyze the components of proteins from Echinococcus granulosus cyst fluid using the shotgun method, and to identify the active components with potential regulatory effects for immune dysregulation diseases. METHODS The E. granulosus cyst fluid was collected aseptically from the hepatic cysts of patients with cystic echinococcosis, and characterized by liquid chromatography (LC) tandem mass spectrometry (MS/MS) following digestion with trypsin. The protein data were searched using the software MaxQuant version 1.6.1.0 and the cellular components, molecular functions, and biological processes of the identified proteins were analyzed using the Gene Ontology (GO) method. RESULTS The E. granulosus cyst fluid separated by sodium dodecyl sulfate polyacrylamide gel electrophoresis (SDS-PAGE) had a relative molecular mass of 25 to 70 kDa. LS-MS/MS analysis identified 37 proteins, including 32 known proteins and 5 unknown proteins. At least 4 proteins were preliminarily found to exhibit potential regulatory effects for immune dysregulation diseases, including antigen B, glutathione-S-transferase (GST), thioredoxin peroxidase (TPX) and malate dehydrogenase (MDH). GO enrichment analysis showed that the identified proteins had 149 molecular functions and were involved in 341 biological processes. CONCLUSIONS E. granulosus cyst fluid has a variety of protein components, and four known proteins are preliminarily identified to be associated with immune dysregulation diseases.
Collapse
Affiliation(s)
- S Y Wang
- Department of Pediatrics, The First Affiliated Hospital of Bengbu Medical College, Bengbu 233000, China.,Anhui Key Laboratory of Infection and Immunity, Bengbu Medical College, China.,Co-first authors
| | - X D Yang
- Anhui Key Laboratory of Infection and Immunity, Bengbu Medical College, China.,Department of Microbiology and Parasitology, Bengbu Medical College, China.,Co-first authors
| | - H Y Gao
- Department of Pediatrics, The First Affiliated Hospital of Bengbu Medical College, Bengbu 233000, China.,Anhui Key Laboratory of Infection and Immunity, Bengbu Medical College, China
| | - J Y Xing
- Anhui Key Laboratory of Infection and Immunity, Bengbu Medical College, China
| | - Q Hu
- Anhui Key Laboratory of Infection and Immunity, Bengbu Medical College, China
| | - T T Huang
- Anhui Key Laboratory of Infection and Immunity, Bengbu Medical College, China
| | - P Wu
- Anhui Key Laboratory of Infection and Immunity, Bengbu Medical College, China
| | - Y T Zhao
- Anhui Key Laboratory of Infection and Immunity, Bengbu Medical College, China
| | - H W Liu
- Anhui Key Laboratory of Infection and Immunity, Bengbu Medical College, China
| | - W Y Liu
- Anhui Key Laboratory of Infection and Immunity, Bengbu Medical College, China
| | - H N Wang
- Anhui Key Laboratory of Infection and Immunity, Bengbu Medical College, China
| | - R Zhou
- Department of Pediatrics, The First Affiliated Hospital of Bengbu Medical College, Bengbu 233000, China
| | - L Chu
- Department of General Surgery, The Second Affiliated Hospital of Bengbu Medical College, China
| |
Collapse
|
8
|
Li JW, Yuan DS, Su SS, Wang ZF, Liu HW, Xu B, Qiao SB, Yang YJ, Gao RL, Yuan JQ, Zhao XY. [Effect of platelet reactivity on clinical events in patients using bivalirudin in selective percutaneous coronary intervention]. Zhonghua Xin Xue Guan Bing Za Zhi 2021; 49:783-789. [PMID: 34404187 DOI: 10.3760/cma.j.cn112148-20210106-00014] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the effect of platelet reactivity and other clinical factors on the postoperative 1-year adverse clinical events in patients who underwent selective percutaneous coronary intervention (PCI) anticoagulated with bivalirudin. Methods: This is a multicenter, retrospective and observational study, enrolling 632 patients at high risk of bleeding adjudicated by operators who underwent selective PCI anticoagulated with bivalirudin and had preoperative thrombelastography (TEG) test results in Fuwai Hospital, Northern Theater General Hospital and Xinxiang Central Hospital between January 2017 and August 2018. Platelet reactivity was tested by TEG and adenosine-induced maximal amplitude (MAADP) was recorded. According to MAADP patients were divided into three groups: low on-treatment platelet reactivity (LTPR) group (MAADP<31 mm, n=229), normal on-treatment platelet reactivity (NTPR) group (31 mm≤MAADP≤47 mm, n=207) and high on-treatment platelet reactivity (HTPR) group (MAADP>47 mm, n=196). The endpoints consisted of major adverse cardiovascular and cerebrovascular events (MACCE) and bleeding events. The definition of MACCE was the composite of all-cause mortality, myocardial infarction, intrastent thrombosis, stroke and revascularization. Bleeding events were defined by bleeding academic research consortium (BARC) type 2, 3 and 5 bleeding. Using multivariate Cox regression to analyze the factors of MACCE and bleeding events in patients underwent selective PCI anticoagulated with bivalirudin. Results: A total of 632 patients were finally enrolled in the study with age of (68.3±10.0) years and there were 423 (66.9%) males. All of 632 patients finished one-year follow-up, and 48 (7.6%) patients occurred MACCE and 11 (1.7%) patients occurred bleeding events. There was not statistically significant difference in the incidence of MACCE (8.3% (19/229) vs. 6.3% (13/207) vs.8.2% (16/196), P=0.68) and bleeding events (1.8% (4/229) vs. 2.9% (6/207) vs. 0.5% (1/196), P=0.17) in LTPR, NTPR and HTPR group. Multivariate Cox regression showed that HTPR was not the independent factor of MACCE (HR=1.25, 95%CI 0.67-2.30, P=0.49), and the history of peripheral vessel disease was the independent risk factor of MACCE (HR=2.47, 95%CI 1.19-5.11, P=0.02). LTPR was not the independent factor of bleeding events (HR=1.35, 95%CI 0.39-4.66, P=0.64), and the independent factors of bleeding events were history of peripheral vessel disease (HR=3.95, 95%CI 1.03-15.22, P=0.05) and hemoglobin (HR=0.96, 95%CI 0.93-0.99, P=0.01). Conclusions: In patients undergoing selective PCI anticoagulated with bivalirudin, there is no significant association between platelet reactivity and postoperative 1-year MACCE or bleeding events. History of peripheral vessel disease is an independent risk factor of MACCE, and history of peripheral vessel disease and decreased hemoglobin are independent risk factors of bleeding events.
Collapse
Affiliation(s)
- J W Li
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - D S Yuan
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - S S Su
- Department of Cardiology, Xinxiang Central Hospital,Xinxiang 453000, China
| | - Z F Wang
- Department of Cardiology, Xinxiang Central Hospital,Xinxiang 453000, China
| | - H W Liu
- Department of Cardiology, Northern Theater General Hospital, Shenyang 110016, China
| | - B Xu
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - S B Qiao
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - Y J Yang
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - R L Gao
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - J Q Yuan
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| | - X Y Zhao
- State Key Laboratory of Cardiovascular Disease, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing 100037, China
| |
Collapse
|
9
|
Satriyo PB, Su CM, Ong JR, Huang WC, Fong IH, Lin CC, Aryandono T, Haryana SM, Deng L, Huang CC, Tzeng YM, Chao TY, Liu HW, Yeh CT. 4-Acetylantroquinonol B induced DNA damage response signaling and apoptosis via suppressing CDK2/CDK4 expression in triple negative breast cancer cells. Toxicol Appl Pharmacol 2021; 422:115493. [PMID: 33727089 DOI: 10.1016/j.taap.2021.115493] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/17/2020] [Revised: 03/09/2021] [Accepted: 03/10/2021] [Indexed: 02/06/2023]
Abstract
BACKGROUND Triple-negative breast cancer (TNBC) has a more aggressive phenotype and poorer prognosis than hormone receptor (HR+) and human epidermal growth factor receptor (HER2 -) subtypes. Inhibition of cyclin-dependent kinase (CDK)4 and CDK6 was successful in patients with advanced metastatic HR+/HER2- breast cancer, but those with TNBC exhibited low or no response to this therapeutic approach. This study investigated the dual therapeutic targeting of CDK2 and CDK4 by using 4-acetyl-antroquinonol B (4-AAQB) against TNBC cells. METHODS We examined the effects of CDK2, CDK4, and CDK6 inhibition through 4-AAQB treatment on TNBC cell lines and established an orthotropic xenograft mouse model to confirm the in vitro results of inhibiting CDK2, CDK4, and CDK6 by 4-AAQB treatment. RESULTS High expression and alteration of CDK2 and CDK4 but not CDK6 significantly correlated with poor overall survival of patients with breast cancer. CDK2 and CDK4 were positively correlated with damage in DNA replication and repair pathways. Docking results indicated that 4-AAQB was bound to CDK2 and CDK4 with high affinity. Treatment of TNBC cells with 4-AAQB suppressed the expression of CDK2 and CDK4 in vitro. Additionally, 4-AAQB induced cell cycle arrest, DNA damage, and apoptosis in TNBC cells. In vivo study results confirmed that the anticancer activity of 4-AAQB suppressed tumor growth through the inhibition of CDK2 and CDK4. CONCLUSION The expression level of CDK2 and CDK4 and DNA damage response (DDR) signaling are prominent in TNBC cell cycle regulation. Thus, 4-AAQB is a potential agent for targeting CDK2/4 and DDR in TNBC cells.
Collapse
Affiliation(s)
- Pamungkas Bagus Satriyo
- College of Medicine, Taipei Medical University, Taipei City 11031, Taiwan; Faculty of Medicine Public Health and Nursing, Universitas Gadjah Mada, Yogyakarta 55281, Indonesia; Department of Pharmacology and Therapy, Faculty of Medicine Public Health and Nursing, Universitas Gadjah Mada, Yogyakarta 55281, Indonesia
| | - Chih Ming Su
- Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan; Division of General Surgery, Department of Surgery, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - Jiann Ruey Ong
- Department of Emergency Medicine, Taipei Medical University-Shuang Ho Hospital, New Taipei City 235, Taiwan; Graduate Institute of Injury Prevention and Control, Taipei Medical University, Taipei 110, Taiwan; Department of Emergency Medicine, School of Medicine, Taipei Medical University, Taipei 110, Taiwan
| | - Wen-Chien Huang
- Department of Medicine, MacKay Medical College, Taipei 110, Taiwan, ROC; Division of Thoracic Surgery, Department of Surgery, MacKay Memorial Hospital, Taipei 110, Taiwan, ROC
| | - Iat-Hang Fong
- Department of Medical Research & Education, Taipei Medical University-Shuang Ho Hospital, New Taipei City 23561, Taiwan
| | - Chih-Cheng Lin
- Department of Medical Laboratory Science and Biotechnology, Yuanpei University of Medical Technology, Hsinchu City 30015, Taiwan
| | - Teguh Aryandono
- Department of Surgery, Faculty of Medicine Public Health and Nursing, Universitas Gadjah Mada, Yogyakarta 55281, Indonesia
| | - Sofia Mubarika Haryana
- Department of Histology and Cellular Biology, Faculty of Medicine Public Health and Nursing, Universitas Gadjah Mada, Yogyakarta 55281, Indonesia
| | - Li Deng
- Beijing Bioprocess Key Laboratory, College of Life Science and Technology, Beijing University of Chemical Technology, Beijing 100029, China; Amoy-BUCT Industrial Bio-Technovation Institute, Amoy 361022, China
| | - Chun-Chih Huang
- Center for General Education, National Taitung University, Taitung, Taiwan
| | - Yew-Min Tzeng
- Center for General Education, National Taitung University, Taitung, Taiwan
| | - Tsu-Yi Chao
- College of Medicine, Taipei Medical University, Taipei City 11031, Taiwan; Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan; Department of Medical Research & Education, Taipei Medical University-Shuang Ho Hospital, New Taipei City 23561, Taiwan; Department of Hematology & Oncology, Taipei Medical University-Shuang Ho Hospital, New Taipei City 23561, Taiwan
| | - Hui-Wen Liu
- College of Medicine, Taipei Medical University, Taipei City 11031, Taiwan; Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan; Department of Medical Research & Education, Taipei Medical University-Shuang Ho Hospital, New Taipei City 23561, Taiwan; Department of Hematology & Oncology, Taipei Medical University-Shuang Ho Hospital, New Taipei City 23561, Taiwan.
| | - Chi-Tai Yeh
- College of Medicine, Taipei Medical University, Taipei City 11031, Taiwan; Department of Surgery, School of Medicine, College of Medicine, Taipei Medical University, Taipei 110, Taiwan; Department of Medical Research & Education, Taipei Medical University-Shuang Ho Hospital, New Taipei City 23561, Taiwan; Department of Medical Laboratory Science and Biotechnology, Yuanpei University of Medical Technology, Hsinchu City 30015, Taiwan; Department of Hematology & Oncology, Taipei Medical University-Shuang Ho Hospital, New Taipei City 23561, Taiwan.
| |
Collapse
|
10
|
Yang HL, Liu HW, Shrestha S, Thiyagarajan V, Huang HC, Hseu YC. Antrodia salmonea induces apoptosis and enhances cytoprotective autophagy in colon cancer cells. Aging (Albany NY) 2021; 13:15964-15989. [PMID: 34031264 PMCID: PMC8266357 DOI: 10.18632/aging.203019] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/03/2021] [Accepted: 04/05/2021] [Indexed: 04/07/2023]
Abstract
A traditional Chinese medicinal fungus, Antrodia salmonea (AS), with antioxidant properties is familiar in Taiwan but anti-cancer activity of AS in human colon cancer is ambiguous. Hence, we explored the anti-cancer activity of AS in colon cancer cells. 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyltetrazolium bromide (MTT) assay revealed that AS showed a remarkable effect on cell viability in colon cancer cells; SW620, HCT116, and HT29. Annexin V/propidium iodide (PI) stained cells indicated that AS induced both early/late apoptosis in SW620 cells. Additionally, cells treated with AS induced caspase-3 activation, poly (ADP-ribose) polymerase (PARP) cleavage, mitochondrial dysfunction, and Bcl-2 associated X (Bax)/B-cell lymphoma (Bcl-2) dysregulation. Microtubule- associated protein 1A/1B-light chain 3B (LC3-II) accumulation, sequestosome 1 (p62/SQSTM1) activation, autophagy related 4B cysteine peptidase (ATG4B) inactivation, acidic vesicular organelles (AVOs) formation, and Beclin-1/Bcl-2 dysregulation revealed that AS-induced autophagy. Interestingly, cells pretreated with 3-methyladenine (3-MA) strengthened AS-induced caspase-3/apoptosis. Suppression of apoptosis by z-Val-Ala-Asp fluoromethyl ketone (Z-VAD-FMK) did not however block AS-induced autophagy, suggesting that autophagy was not attenuated by the AS-induced apoptosis. Application of N-acetylcysteine (NAC) prevented AS-induced cell death, caspase-3 activation, LC3-II accumulation, and AVOs formation, indicating that AS-induced apoptosis and autophagy was mediated by reactive oxygen species (ROS). Furthermore, AS-induced cytoprotective autophagy and apoptosis through extracellular signal-regulated kinase (ERK) signaling cascades. Moreover, in vivo data disclosed that AS inhibited colitis-associated tumorigenesis in azoxymethane (AOM)-dextran sodium sulphate (DSS)-treated mice. For the first time, we report the anti-cancer properties of this potentially advantageous mushroom for the treatment of human colon cancer.
Collapse
Affiliation(s)
- Hsin-Ling Yang
- Institute of Nutrition, College of Health Care, China Medical University, Taichung 40402, Taiwan
| | - Hui-Wen Liu
- Institute of Nutrition, College of Health Care, China Medical University, Taichung 40402, Taiwan
| | - Sirjana Shrestha
- Institute of Nutrition, College of Health Care, China Medical University, Taichung 40402, Taiwan
| | | | - Hui-Chi Huang
- Department of Chinese Pharmaceutical Sciences and Chinese Medicine Resources, College of Chinese Medicine, China Medical University, Taichung 40402, Taiwan
| | - You-Cheng Hseu
- Department of Cosmeceutics, College of Pharmacy, China Medical University, Taichung 40402, Taiwan
- Department of Health and Nutrition Biotechnology, Asia University, Taichung 41354, Taiwan
- Chinese Medicine Research Center, China Medical University, Taichung 40402, Taiwan
| |
Collapse
|
11
|
Juan J, Yang HX, Wei YM, Song G, Su RN, Chen X, Yang QH, Yan JY, Xiao M, Li Y, Cui SH, Hu YL, Zhao XL, Fan SR, Feng L, Zhang MH, Ma YY, You ZS, Meng HX, Liu HW, Zhu Y, Wu CF, Cai Y, Hu KJ, Ding HJ. [Effects of interpregnancy interval on pregnancy outcomes of subsequent pregnancy: a multicenter retrospective study]. Zhonghua Fu Chan Ke Za Zhi 2021; 56:161-170. [PMID: 33874710 DOI: 10.3760/cma.j.cn112141-20201010-00767] [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 explore the effects of interpregnancy interval (IPI) on pregnancy outcomes of subsequent pregnancy. Methods: A multicenter retrospective study was conducted in 21 hospitals in China. Information of age, height, pre-pregnancy weight, IPI, history of diseases, complications of pregnancy, gestational age of delivery, delivery mode, and pregnancy outcomes of the participants were collected by consulting medical records of pregnant women who had two consecutive deliveries in the same hospital during 2011 to 2018. The participants were divided into 4 groups according to IPI:<18 months, 18-23 months, 24-59 months and ≥60 months. According to the WHO's recommendation, with the IPI of 24-59 months group as a reference, to the effects of IPI on pregnancy outcomes of subsequent pregnancy were analyzed. Stratified analysis was further carried out based on age, history of gestational diabetes mellitus (GDM), macrosomia, and premature delivery, to explore the differences in the effects of IPI on pregnancy outcomes among women with different characteristics. Results: A total of 8 026 women were included in this study. There were 423, 623, 5 512 and 1 468 participants in <18 months group, 18-23 months group, 24-59 months group and ≥60 months group, respectively. (1) The age, pre-pregnancy body mass index (BMI), history of cesarean section, GDM, gestational hypertension and cesarean section delivery rate of <18 months group, 18-23 months group, 24-59 months group and ≥60 months group were gradually increased, and the differences were statistically significant (P<0.05). (2) After adjusting for potential confounding factors, compared with women in the IPI of 24-59 months group, the risk of premature delivery, premature rupture of membranes, and oligohydramnios were increased by 42% (OR=1.42, 95%CI: 1.07-1.88, P=0.015), 46% (OR=1.46, 95%CI: 1.13-1.88, P=0.004), and 64% (OR=1.64, 95%CI: 1.13-2.38, P=0.009) respectively for women in the IPI≥60 months group. No effects of IPI on other pregnancy outcomes were found in this study (P>0.05). (3) After stratified by age and adjusted for confounding factors, compared with women in the IPI of 24-59 months group, IPI≥60 months would significantly increase the risk of oligohydramnios for women with advanced age (OR=2.87, 95%CI: 1.41-5.83, P=0.004); and <18 months could increase the risk of premature rupture of membranes for women under the age of 35 (OR=1.59, 95%CI: 1.04-2.43, P=0.032). Both the risk of premature rupture of membranes (OR=1.58, 95%CI: 1.18-2.13, P=0.002) and premature delivery (OR=1.52, 95%CI: 1.07-2.17, P=0.020) were significantly increased in the IPI≥60 months group. After stratified by history of GDM and adjusted for confounding factors, compared with women in the IPI of 24-59 months group, IPI≥60 months would lead to an increased risk of postpartum hemorrhage for women with a history of GDM (OR=5.34, 95%CI: 1.45-19.70, P=0.012) and an increased risk of premature rupture of membranes for women without a history of GDM (OR=1.44, 95%CI: 1.10-1.90, P=0.009). After stratified by history of macrosomia and adjusted for confounding factors, compared with women in the IPI of 24-59 months group, IPI≥60 months could increase the proportion of cesarean section for women with a history of macrosomia (OR=4.11, 95%CI: 1.18-14.27, P=0.026) and the risk of premature rupture of membranes for women without a history of macrosomia (OR=1.46, 95%CI: 1.12-1.89, P=0.005). After stratified by history of premature delivery and adjusted for confounding factors, compared with women in the IPI of 24-59 months group, IPI≥60 months would significantly increase the risk of premature rupture of membranes for women without a history of premature delivery (OR=1.47, 95%CI: 1.13-1.92, P=0.004). Conclusions: Both IPI≥60 months and <18 months would increase the risk of adverse pregnancy outcomes in the subsequent pregnancy. Healthcare education and consultation should be conducted for women of reproductive age to maintain an appropriate IPI when they plan to pregnant again, to reduce the risk of adverse pregnancy outcomes in the subsequent pregnancy.
Collapse
Affiliation(s)
- J Juan
- Department of Obstetrics and Gynecology, Peking University First Hospital, Beijing 100034, China
| | - H X Yang
- Department of Obstetrics and Gynecology, Peking University First Hospital, Beijing 100034, China
| | - Y M Wei
- Department of Obstetrics and Gynecology, Peking University First Hospital, Beijing 100034, China
| | - G Song
- Department of Obstetrics and Gynecology, Peking University First Hospital, Beijing 100034, China
| | - R N Su
- Department of Obstetrics and Gynecology, Peking University First Hospital, Beijing 100034, China
| | - X Chen
- Department of Obstetrics, Tianjin Central Obstetrics and Gynecology Hospital, Tianjin 300052, China
| | - Q H Yang
- Department of Obstetrics, Jinan Maternal and Child Health Hospital, Jinan 250000, China
| | - J Y Yan
- Department of Obstetrics, Fujian Maternal and Child Health Hospital, Fuzhou 350001, China
| | - M Xiao
- Department of Obstetrics, Maternal and Child Hospital of Hubei Province, Wuhan 430070, China
| | - Y Li
- Department of Obstetrics, Dalian Maternity Hospital, Dalian 116033, China
| | - S H Cui
- Department of Obstetrics and Gynecology, the Third Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - Y L Hu
- Department of Obstetrics and Gynecology, Nanjing Drum Tower Hospital, the Affiliated Hospital of Nanjing University Medical School, Nanjing 210008, China
| | - X L Zhao
- Department of Obstetrics and Gynecology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - S R Fan
- Department of Obstetrics, Peking University Shenzhen Hospital, Shenzhen 518036, China
| | - L Feng
- Department of Obstetrics and Gynecology, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - M H Zhang
- Department of Obstetrics, Taiyuan Maternal and Child Health Hospital, Taiyuan 030012, China
| | - Y Y Ma
- Department of Obstetrics and Gynecology, Qilu Hospital of Shandong University, Jinan 250012, China
| | - Z S You
- Department of Obstetrics and Gynecology, Suzhou Jiulong Hospital Affiliated to Shanghai Jiaotong University, Suzhou 320571, China
| | - H X Meng
- Department of Obstetrics, Affiliated Hospital of Inner Mongolia Medical University, Huhhot 010050, China
| | - H W Liu
- Department of Endocrinology, Hainan General Hospital, Haikou 570311, China
| | - Y Zhu
- Department of Obstetrics and Gynecology, Harbin Red Cross Central Hospital, Harbin 150070, China
| | - C F Wu
- Department of Obstetrics, the First Affiliated Hospital of Harbin Medical University, Harbin 150001, China
| | - Y Cai
- Department of Obstetrics and Gynecology, the Fourth Affiliated Hospital of Harbin Medical University, Harbin 150001, China
| | - K J Hu
- Department of Obstetrics, the Hospital of Shunyi District Beijing, Beijing 101300, China
| | - H J Ding
- Department of Obstetrics, Nanjing Maternal and Child Health Hospital, Nanjing 210000, China
| |
Collapse
|
12
|
Tsai CC, Su YC, Bamodu OA, Chen BJ, Tsai WC, Cheng WH, Lee CH, Hsieh SM, Liu ML, Fang CL, Lin HT, Chen CL, Yeh CT, Lee WH, Ho CL, Lai SW, Tzeng HE, Hsieh YY, Chang CL, Zheng YM, Liu HW, Yen Y, Whang-Peng J, Chao TY. High-Grade B-Cell Lymphoma (HGBL) with MYC and BCL2 and/or BCL6 Rearrangements Is Predominantly BCL6-Rearranged and BCL6-Expressing in Taiwan. Cancers (Basel) 2021; 13:cancers13071620. [PMID: 33807449 PMCID: PMC8059140 DOI: 10.3390/cancers13071620] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2021] [Revised: 03/15/2021] [Accepted: 03/26/2021] [Indexed: 01/15/2023] Open
Abstract
Simple Summary This study highlights the epidemiological, cytogenetic and clinical difference between patients with multiple hit diffuse large B-cell lymphoma in Taiwan and those from western countries. Unlike in the West, the majority of patients with multiple hit lymphoma in Taiwan harbor a BCL6 rearrangement. Almost three in every five BCL6-rearranged double hit lymphoma cases in Taiwan are non-GCB phenotype, indicating, at least in part, that the preferential screening for double hit with BCL6 rearrangement may be a clinically-informative modality for patients with non-GCB phenotype DLBCL in Taiwan. This also suggests the need for a different treatment approach than is obtained in the West where BCL6 double hit lymphomas are seemingly GCB. Consistent with our present findings, mandatory screening for BCL6-rearrangement in suspected DLBCL cases in Taiwan may aid early diagnosis, therapy decision, and clinical outcome forecast. Abstract This study investigated the epidemiological and clinical peculiarities of BCL2 and BCL6 rearrangement in patients with high grade B-cell lymphoma (HGBL) from Taiwan, compared with data from Western countries. Two hundred and eighty-two DLBCL cases from Taipei Medical University-affiliated hospitals (n = 179) and Tri-Service General Hospital (n = 103) were enrolled for this study. From the 282, 47 (16.7%) had MYC translocation; 24 of these harbored concurrent BCL2 and/or BCL6 translocation (double-hit, DH or triple-hit, TH). Twelve DH-HGBL cases had simultaneous MYC and BCL6 translocations, 8 harbored MYC and BCL2 rearrangement, while the remaining 4 patients exhibited TH. Together, 66.7% of DH/TH-HGBL patients were BCL6 rearrangement positive. Among these BCL6-rearranged DH/TH-HGBL patients, only 6 (37.5%) overexpressed MYC and BCL6 proteins simultaneously, indicating that MYC-BCL6 co-overexpression may not be plausible surrogate biomarker for screening BCL6-rearranged DH-HGBL. By the end of year 5, all patients with TH-HGBL, BCL2 DH-HGBL and all but one BCL6 DH-HGBL cases had expired or were lost to follow-up. Progression-free survival (PFS) was longer for the non-DH/TH-HGBL group compared with the DH/TH-HGBL group. While the patients with BCL2 DH-HGBL were lost to follow-up by day 800, their remaining TH-HGBL and BCL6 DH-HGBL peers exhibited very poor PFS, regardless of age strata. More so, patients with BCL6 rearrangement were 5.5-fold more likely associated with extranodal involvement compared with their BCL2-rearranged peers. Moreover, ~60.0% of the BCL6-rearranged DH-HGBL cases were non-GCB, suggesting that including screening for BCL6 rearrangement in patients with the non-GCB phenotype may aid medical decision-making and therapeutic strategy. Contrary to contemporary data from western countries, 2 in every 3 patients with DH/TH-HGBL in Taiwan harbor BCL6 rearrangement. Consistent with present findings, we recommend mandatory screening for BCL6 rearrangement in patients with aggressive HGBL in Taiwan.
Collapse
Affiliation(s)
- Cheng-Chih Tsai
- Division of Hematology and Oncology, Department of Internal Medicine, Taipei Medical University-Shuang Ho Hospital, New Taipei City 235, Taiwan; (C.-C.T.); (Y.-C.S.); (O.A.B.); (W.-H.C.); (C.-T.Y.); (Y.-Y.H.); (H.-W.L.)
| | - Yung-Cheng Su
- Division of Hematology and Oncology, Department of Internal Medicine, Taipei Medical University-Shuang Ho Hospital, New Taipei City 235, Taiwan; (C.-C.T.); (Y.-C.S.); (O.A.B.); (W.-H.C.); (C.-T.Y.); (Y.-Y.H.); (H.-W.L.)
- Ph.D. Program for Cancer Molecular Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University and Academia Sinica, Taipei City 115, Taiwan
| | - Oluwaseun Adebayo Bamodu
- Division of Hematology and Oncology, Department of Internal Medicine, Taipei Medical University-Shuang Ho Hospital, New Taipei City 235, Taiwan; (C.-C.T.); (Y.-C.S.); (O.A.B.); (W.-H.C.); (C.-T.Y.); (Y.-Y.H.); (H.-W.L.)
- Department of Medical Research and Education, Taipei Medical University-Shuang Ho Hospital, New Taipei City 235, Taiwan
| | - Bo-Jung Chen
- Department of Pathology, Taipei Medical University-Shuang Ho Hospital, New Taipei City 235, Taiwan; (B.-J.C.); (C.-H.L.); (M.-L.L.); (W.-H.L.)
| | - Wen-Chiuan Tsai
- Department of Pathology, Tri-Service General Hospital, National Defense Medical Center, Taipei City 114, Taiwan;
| | - Wei-Hong Cheng
- Division of Hematology and Oncology, Department of Internal Medicine, Taipei Medical University-Shuang Ho Hospital, New Taipei City 235, Taiwan; (C.-C.T.); (Y.-C.S.); (O.A.B.); (W.-H.C.); (C.-T.Y.); (Y.-Y.H.); (H.-W.L.)
| | - Chii-Hong Lee
- Department of Pathology, Taipei Medical University-Shuang Ho Hospital, New Taipei City 235, Taiwan; (B.-J.C.); (C.-H.L.); (M.-L.L.); (W.-H.L.)
- Department of Anatomic Pathology, Taipei Institute of Pathology, Taipei City 103, Taiwan
| | - Shu-Min Hsieh
- Department of Clinical Pathology, Taipei Medical University-Shuang Ho Hospital, New Taipei City 235, Taiwan;
| | - Mei-Ling Liu
- Department of Pathology, Taipei Medical University-Shuang Ho Hospital, New Taipei City 235, Taiwan; (B.-J.C.); (C.-H.L.); (M.-L.L.); (W.-H.L.)
| | - Chia-Lang Fang
- Department of Pathology, Taipei Medical University Hospital, Taipei City 110, Taiwan; (C.-L.F.); (C.-L.C.)
| | - Huan-Tze Lin
- Division of Hematology and Oncology, Department of Medicine, Taipei Medical University Hospital, Taipei City 110, Taiwan; (H.-T.L.); (H.-E.T.)
| | - Chi-Long Chen
- Department of Pathology, Taipei Medical University Hospital, Taipei City 110, Taiwan; (C.-L.F.); (C.-L.C.)
- Department of Pathology, School of Medicine, Taipei Medical University, Taipei City 110, Taiwan
| | - Chi-Tai Yeh
- Division of Hematology and Oncology, Department of Internal Medicine, Taipei Medical University-Shuang Ho Hospital, New Taipei City 235, Taiwan; (C.-C.T.); (Y.-C.S.); (O.A.B.); (W.-H.C.); (C.-T.Y.); (Y.-Y.H.); (H.-W.L.)
- Department of Medical Research and Education, Taipei Medical University-Shuang Ho Hospital, New Taipei City 235, Taiwan
| | - Wei-Hwa Lee
- Department of Pathology, Taipei Medical University-Shuang Ho Hospital, New Taipei City 235, Taiwan; (B.-J.C.); (C.-H.L.); (M.-L.L.); (W.-H.L.)
| | - Ching-Liang Ho
- Division of Hematology-Oncology, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei City 114, Taiwan; (C.-L.H.); (S.-W.L.)
| | - Shiue-Wei Lai
- Division of Hematology-Oncology, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei City 114, Taiwan; (C.-L.H.); (S.-W.L.)
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei City 110, Taiwan
| | - Huey-En Tzeng
- Division of Hematology and Oncology, Department of Medicine, Taipei Medical University Hospital, Taipei City 110, Taiwan; (H.-T.L.); (H.-E.T.)
- Program for Cancer Molecular Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei City 110, Taiwan;
| | - Yao-Yu Hsieh
- Division of Hematology and Oncology, Department of Internal Medicine, Taipei Medical University-Shuang Ho Hospital, New Taipei City 235, Taiwan; (C.-C.T.); (Y.-C.S.); (O.A.B.); (W.-H.C.); (C.-T.Y.); (Y.-Y.H.); (H.-W.L.)
| | - Chia-Lun Chang
- Department of Medicine, Division of Hematology and Oncology, Taipei Medical University-Wan-Fang Hospital, Taipei City 116, Taiwan; (C.-L.C.); (Y.-M.Z.); (J.W.-P.)
| | - Yu-Mei Zheng
- Department of Medicine, Division of Hematology and Oncology, Taipei Medical University-Wan-Fang Hospital, Taipei City 116, Taiwan; (C.-L.C.); (Y.-M.Z.); (J.W.-P.)
| | - Hui-Wen Liu
- Division of Hematology and Oncology, Department of Internal Medicine, Taipei Medical University-Shuang Ho Hospital, New Taipei City 235, Taiwan; (C.-C.T.); (Y.-C.S.); (O.A.B.); (W.-H.C.); (C.-T.Y.); (Y.-Y.H.); (H.-W.L.)
| | - Yun Yen
- Program for Cancer Molecular Biology and Drug Discovery, College of Medical Science and Technology, Taipei Medical University, Taipei City 110, Taiwan;
| | - Jacqueline Whang-Peng
- Department of Medicine, Division of Hematology and Oncology, Taipei Medical University-Wan-Fang Hospital, Taipei City 116, Taiwan; (C.-L.C.); (Y.-M.Z.); (J.W.-P.)
- Taipei Cancer Center, Taipei Medical University, Taipei City 110, Taiwan
| | - Tsu-Yi Chao
- Division of Hematology and Oncology, Department of Internal Medicine, Taipei Medical University-Shuang Ho Hospital, New Taipei City 235, Taiwan; (C.-C.T.); (Y.-C.S.); (O.A.B.); (W.-H.C.); (C.-T.Y.); (Y.-Y.H.); (H.-W.L.)
- Division of Hematology-Oncology, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei City 114, Taiwan; (C.-L.H.); (S.-W.L.)
- Graduate Institute of Clinical Medicine, College of Medicine, Taipei Medical University, Taipei City 110, Taiwan
- Taipei Cancer Center, Taipei Medical University, Taipei City 110, Taiwan
- Correspondence: ; Tel.: +886-2-2249-0088 (ext. 8402); Fax: +886-2-6639-7181
| |
Collapse
|
13
|
Li HG, Tian WH, Qin CL, Ye RR, Liu DH, Liu HW. Uhrf1 regulates H3K9me2 modification of mTOR to inhibit the effect of autophagy in myocardial ischemia-reperfusion injury. Aging (Albany NY) 2021; 13:9704-9718. [PMID: 33744855 PMCID: PMC8064229 DOI: 10.18632/aging.202722] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/11/2020] [Accepted: 11/15/2020] [Indexed: 11/25/2022]
Abstract
The regulation of mTOR and the dimethylation of histone H3 on lysine 9 (H3K9me2) H3K9me2 by Uhrf1 and the mechanism of autophagy regulation in myocardial ischemia-reperfusion injury (MIRI) were studied in vivo and in vitro. An in vitro I/R injury model was established using the primary mouse cardiomyocytes treated with H2O2. Subsequent analysis by qRT-PCR, western blot, and immunofluorescence indicated that overexpression of Uhrf1 significantly inhibited apoptosis of the H2O2-treated cardiomyocytes, reduced expression of apoptosis factors caspase-3 and Bax, and increased expression of apoptosis inhibitory factor Bcl-2. Furthermore, Uhrf1 was found to increase cardiomyocyte proliferation and promote the expression of mTOR, while the four expression peaks of H3K9me2 on the mTOR gene were inhibited by overexpression of Uhrf1. The expression of autophagy factors LC3, Beclin-1, and p-mTOR in Uhrf1-overexpressed cardiomyocytes was dramatically increased, and P62 expression was dramatically decreased. When an H3K9me2 inhibitor was added to the Uhrf1-knockdown cardiomyocytes, the expression of mTOR was increased, the expression of LC3, Beclin-1, and p-mTOR was decreased, and P62 expression was significantly increased. In the present study, Uhrf1 exhibits a protective function in MIRI, reducing the apoptosis of cardiomyocytes while increasing their proliferation and viability.
Collapse
Affiliation(s)
- Han-Geng Li
- Department of Histology and Embryology, College of Basic Medicine, Harbin Medical University, Harbin 150081, China
| | - Wen-Hua Tian
- Emergency Department, The Fourth Hospital of Harbin Medical University, Harbin 150081, China
| | - Cun-Lan Qin
- Department of Histology and Embryology, College of Basic Medicine, Harbin Medical University, Harbin 150081, China
| | - Rong-Rong Ye
- Department of Histology and Embryology, College of Basic Medicine, Harbin Medical University, Harbin 150081, China
| | - Dong-Hua Liu
- Department of Histology and Embryology, College of Basic Medicine, Harbin Medical University, Harbin 150081, China
| | - Hui-Wen Liu
- Department of Histology and Embryology, College of Basic Medicine, Harbin Medical University, Harbin 150081, China
| |
Collapse
|
14
|
Yang CH, Wu TH, Chang CC, Lo HY, Liu HW, Huang NT, Lin CW. Biosensing Amplification by Hybridization Chain Reaction on Phase-Sensitive Surface Plasmon Resonance. Biosensors (Basel) 2021; 11:bios11030075. [PMID: 33800935 PMCID: PMC7998988 DOI: 10.3390/bios11030075] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 02/11/2021] [Revised: 03/01/2021] [Accepted: 03/02/2021] [Indexed: 02/07/2023]
Abstract
Surface Plasmon Resonance (SPR) is widely used in biological and chemical sensing with fascinating properties. However, the application of SPR to detect trace targets is hampered by non-specific binding and poor signal. A variety of approaches for amplification have been explored to overcome this deficiency including DNA aptamers as versatile target detection tools. Hybridization chain reaction (HCR) is a high-efficiency enzyme-free DNA amplification method operated at room temperature, in which two stable species of DNA hairpins coexist in solution until the introduction of the initiator strand triggers a cascade of hybridization events. At an optimal salt condition, as the concentrations of H1 and H2 increased, the HCR signals were enhanced, leading to signal amplification reaching up to 6.5-fold of the detection measure at 30 min. This feature enables DNA to act as an amplifying transducer for biosensing applications to provide an enzyme-free alternative that can easily detect complex DNA sequences. Improvement of more diverse recognition events can be achieved by integrating HCR with a phase-sensitive SPR (pSPR)-tested aptamer stimulus. This work seeks to establish pSPR aptamer system for highly informative sensing by means of an amplification HCR. Thus, combining pSPR and HCR technologies provide an expandable platform for sensitive biosensing.
Collapse
Affiliation(s)
- Ching-Hsu Yang
- Graduate Institute of Bioelectronics and Bioinformatics, National Taiwan University, Taipei 106, Taiwan; (C.-H.Y.); (T.-H.W.)
| | - Tzu-Heng Wu
- Graduate Institute of Bioelectronics and Bioinformatics, National Taiwan University, Taipei 106, Taiwan; (C.-H.Y.); (T.-H.W.)
| | - Chia-Chen Chang
- Department of Medical Biotechnology and Laboratory Sciences, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan;
- Kidney Research Center, Department of Nephrology, Chang Gung Memorial Hospital, Taoyuan 333, Taiwan
| | - Hui-Yun Lo
- Department of Biomedical Engineering, National Taiwan University, Taipei 106, Taiwan; (H.-Y.L.); (H.-W.L.)
| | - Hui-Wen Liu
- Department of Biomedical Engineering, National Taiwan University, Taipei 106, Taiwan; (H.-Y.L.); (H.-W.L.)
| | - Nien-Tsu Huang
- Graduate Institute of Bioelectronics and Bioinformatics, National Taiwan University, Taipei 106, Taiwan; (C.-H.Y.); (T.-H.W.)
- Department of Electrical Engineering, National Taiwan University, Taipei 106, Taiwan
- Correspondence: (N.-T.H.); (C.-W.L.)
| | - Chii-Wann Lin
- Department of Biomedical Engineering, National Taiwan University, Taipei 106, Taiwan; (H.-Y.L.); (H.-W.L.)
- Department of Electrical Engineering, National Taiwan University, Taipei 106, Taiwan
- Biomedical Technology and Device Research Laboratories, Industrial Technology Research Institute, Hsinchu 310, Taiwan
- Correspondence: (N.-T.H.); (C.-W.L.)
| |
Collapse
|
15
|
Liu HW, Han YL. [Recent advances in antithrombotic therapy for patients with coronary artery disease undergoing percutaneous coronary intervention]. Zhonghua Xin Xue Guan Bing Za Zhi 2021; 49:108-110. [PMID: 33611894 DOI: 10.3760/cma.j.cn112148-20201222-01010] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- H W Liu
- Department of Cardiology, General Hospital of Northern Theater Command, Shenyang 110016, China
| | - Y L Han
- Department of Cardiology, General Hospital of Northern Theater Command, Shenyang 110016, China
| |
Collapse
|
16
|
Wang G, Na K, Li Y, Jing QM, Wang XZ, Liu HW, Wang B, Xu K, Han YL. [Five-year clinical outcomes of the second generation biodegradable polymer sirolimus-eluting stent (EXCROSSAL) in treating patients with de novo coronary lesions]. Zhonghua Xin Xue Guan Bing Za Zhi 2021; 49:121-127. [PMID: 33611897 DOI: 10.3760/cma.j.cn112148-20200916-00740] [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 evaluate the five-year safety and efficacy of the second generation biodegradable polymer sirolimus-eluting stent (EXCROSSAL) in treating patients with de novo coronary artery diseases. Methods: Patients with coronary artery disease (CAD)who were implanted with EXTROSSAL stents in CREDIT Ⅱ and CREDIT Ⅲ study were included. CREDIT Ⅱ was a randomized trial, and CREDIT Ⅲ was a single-arm study. From November 2013 to December 2014, 833 CAD patients with de novo coronary lesions implanted with EXTROSSAL stents were selected from 33 centers in China. The primary outcome was 5-year target lesion failure (TLF), a composite of cardiac death, target vessel myocardial infarction and clinically indicated target lesion revascularization. Secondary endpoints was patient-oriented composite endpoint (PoCE), including all-cause death, all myocardial infarction, or any revascularization within 5 years post stenting and stent thrombosis according to Academic Research Consortium's (ARC) definition. Kaplan Meier method was used to calculate the incidence of TLF and PoCE within 5 years after operation. Univariate Cox regression analysis was used to analyze the impacts of diabetes, small vessel disease (vessel diameter ≤ 2.74 mm), lesion length ≥ 16.7 mm and multivessel disease on the incidence of TLF within 5 years after operation. Results: A total of 833 patients were included in this study including 579 males (69.5%), the age was (59.3±9.1) years. And 832 (99.9%) patients completed 5-year clinical follow-up. The incidence of TLF and PoCE in the 5-year follow-up were 10.6%(86/811) and 15.5%(126/811), respectively. Stent thrombosis occurred in 1.0%(8/811) of patients. Univariate Cox regression analysis showed that vessel diameter ≤ 2.74 mm (HR=3.20,95%CI 1.90-5.39,P<0.001), lesion length ≥ 16.7 mm (HR=1.88,95%CI 1.18-2.99,P=0.007) and multivessel disease (HR=2.44,95%CI 1.60-3.72,P<0.001) were related factors of TLF within 5 years after operation. Conclusion: EXCROSSAL stent is effective and safe in treating CAD patients with de novo coronary lesions, with low incidence of TLF and PoCE within 5 years after operation.
Collapse
Affiliation(s)
- G Wang
- Department of Cardiology, General Hospital of Northern Theater Command, Shenyang 110016, China
| | - K Na
- Department of Cardiology, General Hospital of Northern Theater Command, Shenyang 110016, China
| | - Y Li
- Department of Cardiology, General Hospital of Northern Theater Command, Shenyang 110016, China
| | - Q M Jing
- Department of Cardiology, General Hospital of Northern Theater Command, Shenyang 110016, China
| | - X Z Wang
- Department of Cardiology, General Hospital of Northern Theater Command, Shenyang 110016, China
| | - H W Liu
- Department of Cardiology, General Hospital of Northern Theater Command, Shenyang 110016, China
| | - B Wang
- Department of Cardiology, General Hospital of Northern Theater Command, Shenyang 110016, China
| | - K Xu
- Department of Cardiology, General Hospital of Northern Theater Command, Shenyang 110016, China
| | - Y L Han
- Department of Cardiology, General Hospital of Northern Theater Command, Shenyang 110016, China
| |
Collapse
|
17
|
Khatua C, Min S, Jung HJ, Shin JE, Li N, Jun I, Liu HW, Bae G, Choi H, Ko MJ, Jeon YS, Kim YJ, Lee J, Ko M, Shim G, Shin H, Lee S, Chung S, Kim YK, Song JJ, Dravid VP, Kang H. In Situ Magnetic Control of Macroscale Nanoligand Density Regulates the Adhesion and Differentiation of Stem Cells. Nano Lett 2020; 20:4188-4196. [PMID: 32406688 DOI: 10.1021/acs.nanolett.0c00559] [Citation(s) in RCA: 13] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
Developing materials with remote controllability of macroscale ligand presentation can mimic extracellular matrix (ECM) remodeling to regulate cellular adhesion in vivo. Herein, we designed charged mobile nanoligands with superparamagnetic nanomaterials amine-functionalized and conjugated with polyethylene glycol linker and negatively charged RGD ligand. We coupled negatively a charged nanoligand to a positively charged substrate by optimizing electrostatic interactions to allow reversible planar movement. We demonstrate the imaging of both macroscale and in situ nanoscale nanoligand movement by magnetically attracting charged nanoligand to manipulate macroscale ligand density. We show that in situ magnetic control of attracting charged nanoligand facilitates stem cell adhesion, both in vitro and in vivo, with reversible control. Furthermore, we unravel that in situ magnetic attraction of charged nanoligand stimulates mechanosensing-mediated differentiation of stem cells. This remote controllability of ECM-mimicking reversible ligand variations is promising for regulating diverse reparative cellular processes in vivo.
Collapse
Affiliation(s)
- Chandra Khatua
- Department of Materials Science and Engineering, Korea University, Seoul 02841, Republic of Korea
| | - Sunhong Min
- Department of Materials Science and Engineering, Korea University, Seoul 02841, Republic of Korea
| | - Hee Joon Jung
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
- International Institute for Nanotechnology, Evanston, Illinois 60208, United States
- NUANCE Center, Northwestern University, Evanston, Illinois 60208, United States
| | - Jeong Eun Shin
- Department of Materials Science and Engineering, Korea University, Seoul 02841, Republic of Korea
| | - Na Li
- Department of Otorhinolaryngology-Head and Neck Surgery, Korea University College of Medicine, Seoul 02841, Republic of Korea
| | - Indong Jun
- Department of Otorhinolaryngology-Head and Neck Surgery, Korea University College of Medicine, Seoul 02841, Republic of Korea
| | - Hui-Wen Liu
- School of Mechanical Engineering, Korea University, Seoul 02841, Republic of Korea
| | - Gunhyu Bae
- Department of Materials Science and Engineering, Korea University, Seoul 02841, Republic of Korea
| | - Hyojun Choi
- Department of Materials Science and Engineering, Korea University, Seoul 02841, Republic of Korea
| | - Min Jun Ko
- Department of Materials Science and Engineering, Korea University, Seoul 02841, Republic of Korea
| | - Yoo Sang Jeon
- Department of Materials Science and Engineering, Korea University, Seoul 02841, Republic of Korea
| | - Yu Jin Kim
- Institute for High Technology Materials and Devices, Korea University, Seoul 02841, Republic of Korea
| | - Joonbum Lee
- Department of Materials Science and Engineering, Korea University, Seoul 02841, Republic of Korea
| | - Minji Ko
- Department of Materials Science and Engineering, Korea University, Seoul 02841, Republic of Korea
| | - Gyubo Shim
- Department of Materials Science and Engineering, Korea University, Seoul 02841, Republic of Korea
| | - Hongchul Shin
- Department of Biotechnology, Korea University, Seoul 02841, Republic of Korea
| | - Sangbum Lee
- Department of Materials Science and Engineering, Korea University, Seoul 02841, Republic of Korea
| | - Seok Chung
- Department of Biomicrosystem Technology, Korea University, Seoul 02841, Republic of Korea
- School of Mechanical Engineering, Korea University, Seoul 02841, Republic of Korea
- KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul 02841, Republic of Korea
| | - Young Keun Kim
- Department of Materials Science and Engineering, Korea University, Seoul 02841, Republic of Korea
- Department of Biomicrosystem Technology, Korea University, Seoul 02841, Republic of Korea
| | - Jae-Jun Song
- Department of Otorhinolaryngology-Head and Neck Surgery, Korea University College of Medicine, Seoul 02841, Republic of Korea
| | - Vinayak P Dravid
- Department of Materials Science and Engineering, Northwestern University, Evanston, Illinois 60208, United States
- International Institute for Nanotechnology, Evanston, Illinois 60208, United States
- NUANCE Center, Northwestern University, Evanston, Illinois 60208, United States
| | - Heemin Kang
- Department of Materials Science and Engineering, Korea University, Seoul 02841, Republic of Korea
- Department of Biomicrosystem Technology, Korea University, Seoul 02841, Republic of Korea
| |
Collapse
|
18
|
Yao XH, Li TY, He ZC, Ping YF, Liu HW, Yu SC, Mou HM, Wang LH, Zhang HR, Fu WJ, Luo T, Liu F, Guo QN, Chen C, Xiao HL, Guo HT, Lin S, Xiang DF, Shi Y, Pan GQ, Li QR, Huang X, Cui Y, Liu XZ, Tang W, Pan PF, Huang XQ, Ding YQ, Bian XW. [A pathological report of three COVID-19 cases by minimal invasive autopsies]. Zhonghua Bing Li Xue Za Zhi 2020; 49:411-417. [PMID: 32172546 DOI: 10.3760/cma.j.cn112151-20200312-00193] [Citation(s) in RCA: 473] [Impact Index Per Article: 118.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 12/18/2022]
Abstract
Objective: To investigate the pathological characteristics and the clinical significance of novel coronavirus (2019-nCoV)-infected pneumonia (termed by WHO as coronavirus disease 2019, COVID-19). Methods: Minimally invasive autopsies from lung, heart, kidney, spleen, bone marrow, liver, pancreas, stomach, intestine, thyroid and skin were performed on three patients died of novel coronavirus pneumonia in Chongqing, China. Hematoxylin and eosin staining (HE), transmission electron microcopy, and histochemical staining were performed to investigate the pathological changes of indicated organs or tissues. Immunohistochemical staining was conducted to evaluate the infiltration of immune cells as well as the expression of 2019-nCoV proteins. Real time PCR was carried out to detect the RNA of 2019-nCoV. Results: Various damages were observed in the alveolar structure, with minor serous exudation and fibrin exudation. Hyaline membrane formation was observed in some alveoli. The infiltrated immune cells in alveoli were majorly macrophages and monocytes. Moderate multinucleated giant cells, minimal lymphocytes, eosinophils and neutrophils were also observed. Most of infiltrated lymphocytes were CD4-positive T cells. Significant proliferation of type Ⅱ alveolar epithelia and focal desquamation of alveolar epithelia were also indicated. The blood vessels of alveolar septum were congested, edematous and widened, with modest infiltration of monocytes and lymphocytes. Hyaline thrombi were found in a minority of microvessels. Focal hemorrhage in lung tissue, organization of exudates in some alveolar cavities, and pulmonary interstitial fibrosis were observed. Part of the bronchial epithelia were exfoliated. Coronavirus particles in bronchial mucosal epithelia and type Ⅱ alveolar epithelia were observed under electron microscope. Immunohistochemical staining showed that part of the alveolar epithelia and macrophages were positive for 2019-nCoV antigen. Real time PCR analyses identified positive signals for 2019-nCoV nucleic acid. Decreased numbers of lymphocyte, cell degeneration and necrosis were observed in spleen. Furthermore, degeneration and necrosis of parenchymal cells, formation of hyaline thrombus in small vessels, and pathological changes of chronic diseases were observed in other organs and tissues, while no evidence of coronavirus infection was observed in these organs. Conclusions: The lungs from novel coronavirus pneumonia patients manifest significant pathological lesions, including the alveolar exudative inflammation and interstitial inflammation, alveolar epithelium proliferation and hyaline membrane formation. While the 2019-nCoV is mainly distributed in lung, the infection also involves in the damages of heart, vessels, liver, kidney and other organs. Further studies are warranted to investigate the mechanism underlying pathological changes of this disease.
Collapse
Affiliation(s)
- X H Yao
- Institute of Pathology, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - T Y Li
- Department of Vascular Surgery, Southwest Hospital, Third Military MedicalUniversity (Army Medical University), Chongqing 400038, China
| | - Z C He
- Institute of Pathology, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Y F Ping
- Institute of Pathology, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - H W Liu
- Chongqing Three-Gorges Central Hospital, Chongqing 404000, China
| | - S C Yu
- Institute of Pathology, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - H M Mou
- Chongqing Three-Gorges Central Hospital, Chongqing 404000, China
| | - L H Wang
- Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - H R Zhang
- Institute of Pathology, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - W J Fu
- Institute of Pathology, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - T Luo
- Institute of Pathology, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - F Liu
- Institute of Pathology, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Q N Guo
- Institute of Pathology, Xinqiao Hosital, Third Military Medical University (Army Medical University),Chongqing 400037, China
| | - C Chen
- Institute of Pathology, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - H L Xiao
- Department of Pathology, Daping Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - H T Guo
- Institute of Pathology, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - S Lin
- Institute of Pathology, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - D F Xiang
- Institute of Pathology, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - Y Shi
- Institute of Pathology, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - G Q Pan
- Institute of Pathology, Xinqiao Hosital, Third Military Medical University (Army Medical University),Chongqing 400037, China
| | - Q R Li
- Institute of Pathology, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
| | - X Huang
- Department of Intensive Care Medicine, Chongqing Three-Gorges Central Hospital, Chongqing 404000, China
| | - Y Cui
- Department of Intensive Care Medicine, Chongqing Three-Gorges Central Hospital, Chongqing 404000, China
| | - X Z Liu
- Infection Management Department, Chongqing Three-Gorges Central Hospital, Chongqing 404000, China
| | - W Tang
- Chongqing Three-Gorges Central Hospital, Chongqing 404000, China
| | - P F Pan
- Department of Intensive Care Medicine, Chongqing Three-Gorges Central Hospital, Chongqing 404000, China
| | - X Q Huang
- Department of Vascular Surgery, Southwest Hospital, Third Military MedicalUniversity (Army Medical University), Chongqing 400038, China
| | - Y Q Ding
- Department of Pathology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - X W Bian
- Institute of Pathology, Southwest Hospital, Third Military Medical University (Army Medical University), Chongqing 400038, China
| |
Collapse
|
19
|
Chung B, Kim J, Nam J, Kim H, Jeong Y, Liu HW, Cho Y, Kim YH, Oh HJ, Chung S. Evaluation of Cell-Penetrating Peptides Using Microfluidic In Vitro 3D Brain Endothelial Barrier. Macromol Biosci 2020; 20:e1900425. [PMID: 32329170 DOI: 10.1002/mabi.201900425] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/17/2019] [Revised: 02/27/2020] [Indexed: 02/06/2023]
Abstract
In drug delivery to the human brain, blood vessels are a significant hurdle because they restrict the entry of most solutes to protect brain. To overcome this hurdle, an in vitro 3D model for brain endothelial barrier is developed using a microfluidic device with hydrogel providing a 3D extracellular matrix scaffold. Using the model, peptides known to utilize receptor-mediated transcytosis are verified, which has been one of the most promising mechanisms for brain-specific penetration. The cytotoxicity and cellular damage to the peptide are investigated and the receptor-mediated transcytosis and brain endothelial specific penetrating abilities of the peptides in a quantitative manner are demonstrated. As a preclinical test, applying the quantification assays conducted in this study are suggested, including the penetrating ability, cytotoxicity, endothelial damage, and receptor specificity. Using this microfluidic device as an in vitro platform for evaluating various brain targeting drugs and drug carrier candidates is also proposed.
Collapse
Affiliation(s)
- Bohye Chung
- KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul, Republic of Korea
| | - Jaehoon Kim
- School of Mechanical Engineering, Korea University, Seoul, Republic of Korea
| | - Jiyoung Nam
- Sungkyunkwan University, Suwon, Republic of Korea
| | - Hyunho Kim
- School of Mechanical Engineering, Korea University, Seoul, Republic of Korea
| | - Yeju Jeong
- School of Mechanical Engineering, Korea University, Seoul, Republic of Korea
| | - Hui-Wen Liu
- School of Mechanical Engineering, Korea University, Seoul, Republic of Korea
| | - Youngkyu Cho
- Department of IT Convergence, Korea University, Seoul, Republic of Korea
| | - Yong Ho Kim
- Sungkyunkwan University, Suwon, Republic of Korea
| | - Hyun Jeong Oh
- School of Mechanical Engineering, Korea University, Seoul, Republic of Korea
| | - Seok Chung
- KU-KIST Graduate School of Converging Science and Technology, Korea University, Seoul, Republic of Korea.,School of Mechanical Engineering, Korea University, Seoul, Republic of Korea.,Department of IT Convergence, Korea University, Seoul, Republic of Korea
| |
Collapse
|
20
|
Wu YF, Li ZY, Dong LL, Li WJ, Wu YP, Wang J, Chen HP, Liu HW, Li M, Jin CL, Huang HQ, Ying SM, Li W, Shen HH, Chen ZH. Inactivation of MTOR promotes autophagy-mediated epithelial injury in particulate matter-induced airway inflammation. Autophagy 2020; 16:435-450. [PMID: 31203721 PMCID: PMC6999647 DOI: 10.1080/15548627.2019.1628536] [Citation(s) in RCA: 70] [Impact Index Per Article: 17.5] [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: 06/18/2018] [Revised: 05/21/2019] [Accepted: 05/30/2019] [Indexed: 12/21/2022] Open
Abstract
Particulate matter (PM) is able to induce airway epithelial injury, while the detailed mechanisms remain unclear. Here we demonstrated that PM exposure inactivated MTOR (mechanistic target of rapamycin kinase), enhanced macroautophagy/autophagy, and impaired lysosomal activity in HBE (human bronchial epithelial) cells and in mouse airway epithelium. Genetic or pharmaceutical inhibition of MTOR significantly enhanced, while inhibition of autophagy attenuated, PM-induced IL6 expression in HBE cells. Consistently, club-cell-specific deletion of Mtor aggravated, whereas loss of Atg5 in bronchial epithelium reduced, PM-induced airway inflammation. Interestingly, the augmented inflammatory responses caused by MTOR deficiency were markedly attenuated by blockage of downstream autophagy both in vitro and in vivo. Mechanistically, the dysregulation of MTOR-autophagy signaling was partially dependent on activation of upstream TSC2, and interacted with the TLR4-MYD88 to orchestrate the downstream NFKB activity and to regulate the production of inflammatory cytokines in airway epithelium. Moreover, inhibition of autophagy reduced the expression of EPS15 and the subsequent endocytosis of PM. Taken together, the present study provides a mechanistic explanation for how airway epithelium localized MTOR-autophagy axis regulates PM-induced airway injury, suggesting that activation of MTOR and/or suppression of autophagy in local airway might be effective therapeutic strategies for PM-related airway disorders.Abbreviations: ACTB: actin beta; AKT: AKT serine/threonine kinase; ALI: air liquid interface; AP2: adaptor related protein complex 2; ATG: autophagy related; BALF: bronchoalveolar lavage fluid; COPD: chronic obstructive pulmonary disease; CXCL: C-X-C motif chemokine ligand; DOX: doxycycline; EGF: epidermal growth factor; EGFR: epidermal growth factor receptor; EPS15: epidermal growth factor receptor pathway substrate 15; HBE: human bronchial epithelial; H&E: hematoxylin & eosin; IKK: IKB kinase; IL: interleukin; LAMP2: lysosomal-associated membrane protein 2; LPS: lipopolysaccharide; MAP1LC3B/LC3B: microtubule-associated protein 1 light chain 3 beta; MTEC: mouse tracheal epithelial cells; MTOR: mechanistic target of rapamycin kinase; MYD88: MYD88 innate immune signal transduction adaptor; NFKB: nuclear factor of kappa B; NFKBIA: NFKB inhibitor alpha; PM: particulate matter; PtdIns3K: phosphatidylinositol 3-kinase; Rapa: rapamycin; RELA: RELA proto-oncogene, NFKB subunit; SCGB1A1: secretoglobin family 1A member 1; siRNA: small interfering RNAs; SQSTM1: sequestosome 1; TEM: transmission electronic microscopy; TLR4: toll like receptor 4; TSC2: TSC complex subunit 2.
Collapse
Affiliation(s)
- Yin-Fang Wu
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Zhou-Yang Li
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Ling-Ling Dong
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Wei-Jie Li
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Yan-Ping Wu
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Jing Wang
- Department of Polymer Science and Engineering, Zhejiang University, Hangzhou, Zhejiang, China
| | - Hai-Pin Chen
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Hui-Wen Liu
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Miao Li
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Ci-Liang Jin
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Hua-Qiong Huang
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Song-Min Ying
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Wen Li
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| | - Hua-Hao Shen
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
- State Key Lab of Respiratory Disease, Key cite of National Clinical Research Center for Respiratory Disease, Guangzhou, China
| | - Zhi-Hua Chen
- Key Laboratory of Respiratory Disease of Zhejiang Province, Department of Respiratory and Critical Care Medicine, Second Affiliated Hospital of Zhejiang University School of Medicine, Hangzhou, Zhejiang, China
| |
Collapse
|
21
|
Feng S, Leung AK, Liu HW, Ng CWW, Zhan LT, Chen R. Effects of thermal boundary condition on methane oxidation in landfill cover soil at different ambient temperatures. Sci Total Environ 2019; 692:490-502. [PMID: 31351291 DOI: 10.1016/j.scitotenv.2019.07.108] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/30/2019] [Revised: 06/23/2019] [Accepted: 07/07/2019] [Indexed: 06/10/2023]
Abstract
Microbial aerobic methane oxidation (MAMO) has been considered as an environmental-friendly method for mitigating methane emission from municipal landfill sites. Soil column has in a landfill cover under one-dimensional (1-D) condition. However, most of the published soil column tests failed to simulate 1-D heat transfer due to the use of thermal conductive boundary at the sidewall. In the present study, a heavily instrumented soil column was developed to quantify the effects of thermal boundary condition on the methane oxidation efficiency under different ambient temperatures in landfill cover soil. The sidewall of the soil column was thermally insulated to ensure 1-D heat transport as would have been typically expected in the field condition. Two soil column tests with and without thermal insulation were conducted at a range of controlled ambient temperatures from 15 to 30°C, for studying how soil moisture, matric suction, gas pressure, soil temperature and gas concentration evolve with MAMO. The test results reveal that ignoring thermal insulation in a soil column test would result in a greater loss of soil heat generation by MAMO and hence oxidation efficiency by up to 100% for the range of temperature considered. When the ambient temperature increased to 30°C (but less than the optimum temperature for MAMO), the MAMO efficiency increased abruptly at first but then decreased substantially with time, and this is likely due to the accumulation of biomass generated by MAMO.
Collapse
Affiliation(s)
- S Feng
- College of Civil Engineering, Fuzhou University, China; Key Laboratory of Soft Soils and Geoenvironmental Engineering (Zhejiang University), Ministry of Education, China; Formerly Department of Civil and Environmental Engineering, Hong Kong University of Science and Technology, Hong Kong.
| | - A K Leung
- Department of Civil and Environmental Engineering, Hong Kong University of Science and Technology, Hong Kong; Formerly Division of Civil Engineering, University of Dundee, UK.
| | - H W Liu
- College of Environment and Resources, Fuzhou University, Fuzhou City, Fujian Province, China; Formerly Department of Civil and Environmental Engineering, Hong Kong University of Science and Technology, Hong Kong.
| | - C W W Ng
- Department of Civil and Environmental Engineering, Hong Kong University of Science and Technology, Hong Kong.
| | - L T Zhan
- MOE Key Laboratory of Soft Soils and Geoenvironmental Engineering, Department of Civil Engineering, Zhejiang University, Hangzhou, China.
| | - R Chen
- Department of Civil and Environmental Engineering, Harbin Institute of Technology, Shenzhen, China.
| |
Collapse
|
22
|
Wang G, Bian LY, Li Y, Jing QM, Wang XZ, Liu HW, Wang B, Xu K, Han YL. [Long-term efficacy of a second generation biodegradable polymer sirolimus-eluting stent (EXCEL2) in treating patients with de novo coronary artery diseases]. Zhonghua Xin Xue Guan Bing Za Zhi 2019; 47:784-789. [PMID: 31648460 DOI: 10.3760/cma.j.issn.0253-3758.2019.10.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To evaluate the long-term efficacy of a second generation biodegradable polymer sirolimus-eluting stent (EXCEL2) in treating patients with de novo coronary artery diseases. Methods: CREDIT Ⅱ trial was a prospective, multicenter, randomized, controlled study, conducted at 15 Chinese cardiac centres from November 2013 to December 2014. In this analysis, eligible patients for coronary stenting (n=419) were randomized to receive either the EXCEL2 stent (n=208) or the EXCEL stent (n=211). The primary endpoint was target lesion failure (TLF) at 3 years after PCI defined as a composite endpoints of cardiac death, target vessel myocardial infarction (TVMI), or clinically indicated target lesion revascularization (CI-TLR). Secondary endpoints included patient-oriented composite endpoint (PoCE) including all-cause death, all MI, or any revascularization at 3 years and independent components, and stent thrombosis according to Academic Research Consortium's (ARC) definition. Results: Among 419 enrolled patients, 413 (98.6%) patients completed 3-year clinical follow-up. Compared with the EXCEL group, 3-year TLF (5.4%(11/204) vs. 11.5% (24/209), P=0.025) and PoCE (9.8% (20/204) vs. 20.1% (42/209), P=0.003) were significantly lower in the EXCEL2 group. The cumulative event rate of CI-TLR (2.0% (4/204) vs. 5.7% (12/209), P=0.042) and any revascularization (4.9% (10/204) vs. 14.4% (30/209), P=0.001) were statistically lower in the EXCEL2 group than in the EXCEL group. There were no significant difference between two groups in terms of all-cause death and all MI. Rates of stent thrombosis were low without significant difference between the two groups (EXCEL2 vs. EXCEL, 1.0% (2/204) vs. 2.9% (6/209), P=0.285). Conclusion: 3-year clinical follow-up results demonstrate that EXCEL2 stents are effective and safe in treating CAD patients with de novo coronary lesions.
Collapse
Affiliation(s)
- G Wang
- Department of Cardiology, General Hospital of Northern Theater Command, Shenyang 110016, China
| | | | | | | | | | | | | | | | | |
Collapse
|
23
|
Chung B, Kim J, Liu HW, Nam J, Kim H, Oh HJ, Kim YH, Chung S. Microfluidic in vitro brain endothelial monolayer model to evaluate cell-penetrating peptides. Micro and Nano Syst Lett 2019. [DOI: 10.1186/s40486-019-0092-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Abstract
Abstract
Blood vessels in central nervous system act as a great hurdle for drug delivery to the human brain. They only allow passage of water, some gases, lipid molecules, glucose and amino acid by selective transporter while restricting most of solutes and pathogens to protect brain. A lot of studies have tried to overcome this hurdle by discovering and optimizing brain deliverable drugs however the platforms used for preclinical stage are still limited. In this study, we constructed an in vitro 3-dimensional model for brain endothelial monolayer using hydrogel incorporated microfluidic device that provides an 3D extracellular matrix scaffold. We confirmed the stable endothelial barrier by staining a tight junction marker, VE-Cadherin, and strong block ability by comparing permeability with normal endothelial cells. Also, we succeed in verifying the strong permeability of angiopep-2 using our device that is known as a brain permeable peptide by utilizing receptor-mediated transcytosis. We propose our microfluidic device as an in vitro platform for evaluating various brain drugs or drug carrier candidates.
Collapse
|
24
|
Liu N, Li H, Liu HW, Wang ZQ, Zheng Y. [The value of red blood cell distribution width in the evaluation of patients with obstructive sleep apnea hypopnea syndrome]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2019; 33:549-552. [PMID: 31163533 DOI: 10.13201/j.issn.1001-1781.2019.06.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 11/03/2018] [Indexed: 11/12/2022]
Abstract
Objective:To investigate the relationship between red blood cell distribution width (RDW) and severity of obstructive sleep apnea hypopnea syndrome (OSAHS). Method:A total of 112 patients with OSAHS who were diagnosed by PSG monitoring were selected as OSAHS group, and 61 healthy subjects with matched age, gender and BMI were selected as the control group. The peripheral venous blood of all subjects was collected in the morning, and relevant hematological indexes such as RDW, white blood cell count, red blood cell count, hemoglobin, mean red blood cell volume, and platelet count were obtained. Result:The RDW level in the OSAHS group was significantly higher than that in the control group. The RDW value increased gradually with the severity of OSAHS and was positively correlated with AHI(r=0.259), the mean SaO₂ (r=-0.279), the lowest SaO₂( r=-0.328), BMI(r=0.203) and negatively correlated with sleep time(r=-0.204). Conclusion:The elevated level of RDW may be an indicator of the severity of OSAHS. Since RDW is usually included in the complete blood count, it can provide an economical and practical indicator to initially assess the condition of OSAHS patients and prioritize polysomnography monitoring.
Collapse
Affiliation(s)
- N Liu
- Department of Otorhinolaryngology, the Second Affiliated Hospital of Xinjiang Medical University, Urumqi, 830063, China
| | - H Li
- Department of Otorhinolaryngology, the Fifth Affiliated Hospital of Xinjiang Medical University
| | - H W Liu
- Department of OtolaryngologyDepartment of Otorhinolaryngology Head and Neck Surgery, the Third Xiangya Hospital, Central South University
| | - Z Q Wang
- Department of Otorhinolaryngology, the Second Affiliated Hospital of Xinjiang Medical University, Urumqi, 830063, China
| | - Y Zheng
- Department of Otorhinolaryngology, the Second Affiliated Hospital of Xinjiang Medical University, Urumqi, 830063, China
| |
Collapse
|
25
|
Zhao JS, Deng W, Liu HW. Effects of chlorogenic acid-enriched extract from Eucommia ulmoides leaf on performance, meat quality, oxidative stability, and fatty acid profile of meat in heat-stressed broilers. Poult Sci 2019; 98:3040-3049. [PMID: 30839075 DOI: 10.3382/ps/pez081] [Citation(s) in RCA: 44] [Impact Index Per Article: 8.8] [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: 09/24/2018] [Accepted: 02/09/2019] [Indexed: 11/20/2022] Open
Abstract
To investigate the effects of chlorogenic acid-enriched extract (CGAE) from Eucommia ulmoides leaf on performance, meat quality, oxidative stability, and fatty acid profile of breast meat in heat-stressed broilers, 400 28-day-old male Ross 308 broilers were randomly assigned into 4 groups with 10 replicates per group (10 broilers per replicate). Broilers in the normal group (NOR) were kept at 22 ± 2°C (24 h/D) and fed the basal diet, and the other 3 groups were treated with cyclic heat (34 ± 2°C from 08:00 to 18:00 and 22 ± 2°C from 18:00 to 08:00) and fed the basal diet supplemented with 0 (HT), 500 (CGAE500), and 1,000 mg (CGAE1000) mg of CGAE/kg of diet. The experiment lasted for 14 D. Compared with the HT group, broilers in the NOR and CGAE1000 groups had a higher average daily gain and a lower feed conversion ratio (P < 0.05). CGAE supplementation at 1,000 mg/kg increased pH24 value, a* value and total superoxide dismutase activity and reduced drip loss, cooking loss, L* value and the contents of malondialdehyde and carbonyl in breast meat of heat-stressed broilers (P < 0.05). Broilers in the HT group showed lower mRNA levels of nuclear factor erythroid 2-related factor 2 (P < 0.001), superoxide dismutase (P = 0.004), and catalase (P < 0.001) in breast meat compared with the other groups. CGAE supplementation at 1,000 mg/kg reduced the stearic acid and saturated fatty acids (SFA) contents and increased the dihomo-γ-linolenic acid, linoleic acid, linolenic acid, eicosapentaenoic acid, polyunsaturated fatty acids (PUFA), and n-6 PUFA contents and PUFA:SFA ratio in breast meat of heat-stressed broilers (P < 0.05). In conclusion, CGAE supplementation at 1,000 mg/kg could alleviate the adverse effects of heat stress on growth performance and meat quality and improve oxidative stability and fatty acid profile of breast meat in heat-stressed broilers.
Collapse
Affiliation(s)
- J S Zhao
- College of Animal Science and Technology, Qingdao Agricultural University, Qingdao 266109, P. R. China
| | - W Deng
- Institute of Animal Husbandry and Veterinary Science, Henan Academy of Agricultural Sciences, Zhengzhou 450008, P. R. China
| | - H W Liu
- College of Animal Science and Technology, Qingdao Agricultural University, Qingdao 266109, P. R. China
| |
Collapse
|
26
|
Yun W, Hong W, Son D, Liu HW, Kim SS, Park M, Kim IY, Kim DS, Song G, You S. Generation of Anterior Hindbrain-Specific, Glial-Restricted Progenitor-Like Cells from Human Pluripotent Stem Cells. Stem Cells Dev 2019; 28:633-648. [PMID: 30880587 DOI: 10.1089/scd.2019.0033] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Engraftment of oligodendrocyte progenitor cells (OPCs), which form myelinating oligodendrocytes, has the potential to treat demyelinating diseases such as multiple sclerosis. However, conventional strategies for generating oligodendrocytes have mainly focused on direct differentiation into forebrain- or spinal cord-restricted oligodendrocytes without establishing or amplifying stem/progenitor cells. Taking advantage of a recently established culture system, we generated expandable EN1- and GBX2-positive glial-restricted progenitor-like cells (GPLCs) near the anterior hindbrain. These cells expressed PDGFRα, CD9, S100β, and SOX10 and mostly differentiated into GFAP-positive astrocytes and MBP-positive oligodendrocytes. RNA-seq analysis revealed that the transcriptome of GPLCs was similar to that of O4-positive OPCs, but distinct from that of rosette-type neural stem cells. Notably, engrafted GPLCs not only differentiated into GFAP-positive astrocytes but also myelinated the brains of adult shiverer mice 8 weeks after transplantation. Our strategy for establishing anterior hindbrain-specific GPLCs with gliogenic potency will facilitate their use in the treatment of demyelinating diseases and studies of the molecular mechanisms underlying glial development in the hindbrain.
Collapse
Affiliation(s)
- Wonjin Yun
- 1 Laboratory of Cell Function Regulation, Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul, Republic of Korea.,2 Institute of Animal Molecular Biotechnology, Korea University, Seoul, Republic of Korea
| | - Wonjun Hong
- 1 Laboratory of Cell Function Regulation, Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul, Republic of Korea.,2 Institute of Animal Molecular Biotechnology, Korea University, Seoul, Republic of Korea
| | - Daryeon Son
- 1 Laboratory of Cell Function Regulation, Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul, Republic of Korea.,2 Institute of Animal Molecular Biotechnology, Korea University, Seoul, Republic of Korea
| | - Hui-Wen Liu
- 2 Institute of Animal Molecular Biotechnology, Korea University, Seoul, Republic of Korea.,3 Laboratory of Reprogramming & Differentiation, Department of Biotechnology, College of Life Science and Biotechnology, Korea University, Seoul, Republic of Korea
| | - Seung-Soo Kim
- 2 Institute of Animal Molecular Biotechnology, Korea University, Seoul, Republic of Korea
| | - Minji Park
- 1 Laboratory of Cell Function Regulation, Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul, Republic of Korea
| | - In Yong Kim
- 1 Laboratory of Cell Function Regulation, Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul, Republic of Korea.,4 Department of Neurosurgery, College of Medicine, Korea University, Seoul, Republic of Korea
| | - Dae-Sung Kim
- 2 Institute of Animal Molecular Biotechnology, Korea University, Seoul, Republic of Korea.,3 Laboratory of Reprogramming & Differentiation, Department of Biotechnology, College of Life Science and Biotechnology, Korea University, Seoul, Republic of Korea
| | - Gwonhwa Song
- 5 Department of Biotechnology, Institute of Animal Molecular Biotechnology, Korea University, Seoul, Republic of Korea
| | - Seungkwon You
- 1 Laboratory of Cell Function Regulation, Department of Biotechnology, College of Life Sciences and Biotechnology, Korea University, Seoul, Republic of Korea.,2 Institute of Animal Molecular Biotechnology, Korea University, Seoul, Republic of Korea
| |
Collapse
|
27
|
Tian XY, Zheng N, Han RW, Ho H, Wang J, Wang YT, Wang SQ, Li HG, Liu HW, Yu ZN. Antimicrobial resistance and virulence genes of Streptococcus isolated from dairy cows with mastitis in China. Microb Pathog 2019; 131:33-39. [PMID: 30940606 DOI: 10.1016/j.micpath.2019.03.035] [Citation(s) in RCA: 33] [Impact Index Per Article: 6.6] [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: 12/11/2018] [Revised: 03/26/2019] [Accepted: 03/27/2019] [Indexed: 11/18/2022]
Abstract
Streptococcus is a major mastitis-causing pathogen in dairy cows. To investigate the prevalence, antimicrobial resistance and virulence gene of Streptococcus in mastitic milk, a total of 735 mastitic raw milk samples from dairy cows in 11 provinces of China were collected and tested. Antimicrobial resistance of Streptococcus isolates was determined by disc diffusion against 8 classes 29 antimicrobial agents, and Streptococcus resistant genes and virulence genes were determined by PCR and agarose gel electrophoresis. A total of 64 (8.71%) isolates of Streptococcus were isolated and identified using biochemical profiling, including 22 isolates of Streptococcus agalactiae, 13 isolates of Streptococcus dysgalactiae, and 29 isolates of Streptococcus uberis. Out of 64 resistant Streptococcus isolates, all isolates (100%) were resistant to 3 or more antimicrobials. The most frequency (n = 18, 28.12%) of the isolates were multi-resistant to 5-7 antimicrobials and the highest multi-resistant number was 29 (n = 1, 1.56%). Streptococcus isolates had the highest resistance rate to tetracycline (98.44%) and oxacillin (98.44%), followed by penicillin G (96.88%) and doxycycline (96.88%), and the lowest resistance was observed with respect to ciprofloxacin (1.56%). A total of 16 antimicrobials resistance genes with 25 combination patterns were detected in the isolates. The gene combination of Sul1/Sul2/Sul3 + gyrA/parC + cat1/cat2 was the most common pattern (12.5%). The correlation between resistant phenotypes and resistance genes in Streptococcs was 35.87%. A total of 7 virulence genes were detected and 59 (92.19%) isolates harbored at least one gene. Twenty-four classes of gene patterns were found in the isolates and the patterns of bca (9.38%) and cfb (9.38%) were the most prevalent form. In conclusion, the issue of drug resistance of Streptococcus is still a great concern in cattle health in China.
Collapse
Affiliation(s)
- X Y Tian
- College of Food Science and Technology, Qingdao Agricultural University, Qingdao, 266109, PR China.
| | - N Zheng
- State Key Laboratory of Animal Nutrition, Institute of Animal Science, Chinese Academy of Agricultural Sciences, Beijing 100193, PR China.
| | - R W Han
- College of Food Science and Technology, Qingdao Agricultural University, Qingdao, 266109, PR China.
| | - H Ho
- Auckland Bioengineering Institute, The University of Auckland, Auckland, New Zealand.
| | - J Wang
- College of Food Science and Technology, Qingdao Agricultural University, Qingdao, 266109, PR China.
| | - Y T Wang
- Institute of Quality Standard and Test Technology for Agro-products, Shandong Academy of Agricultural Sciences, Jinan, 250100, PR China.
| | - S Q Wang
- College of Food Science and Technology, Qingdao Agricultural University, Qingdao, 266109, PR China.
| | - H G Li
- College of Food Science and Technology, Qingdao Agricultural University, Qingdao, 266109, PR China.
| | - H W Liu
- College of Food Science and Technology, Qingdao Agricultural University, Qingdao, 266109, PR China.
| | - Z N Yu
- Haidu College.Qingdao Agricultural University, Laiyang, 265200, PR China.
| |
Collapse
|
28
|
Lin TL, Chuang CH, Chen SL, Lin NH, Miaou SG, Lin SY, Chen CA, Liu HW, Villaverde JF. An efficient image processing methodology based on fuzzy decision for dental shade matching. IFS 2019. [DOI: 10.3233/jifs-169887] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Affiliation(s)
- Ting-Lan Lin
- Department of Electronic Engineering, National Taipei University of Technology, Taiwan, ROC
| | - Chien-Hui Chuang
- Department of Electronic Engineering, Chung Yuan Christian University, Taiwan, ROC
| | - Shih-Lun Chen
- Department of Electronic Engineering, Chung Yuan Christian University, Taiwan, ROC
| | - Nung-Hsiang Lin
- Department of General Dentistry, Chang Gang Memorial Hospital, Taiwan, ROC
| | - Shaou-Gang Miaou
- Department of Electronic Engineering, Chung Yuan Christian University, Taiwan, ROC
| | - Szu-Yin Lin
- Department of Information Management, Chung Yuan Christian University, Taiwan, ROC
| | - Chiung-An Chen
- Department of Electrical Engineering, Ming Chi University of Technology, Taiwan, ROC
| | - Hui-Wen Liu
- Department of Electronic Engineering, Chung Yuan Christian University, Taiwan, ROC
| | | |
Collapse
|
29
|
Lu T, Li ZD, Li SC, Li YG, Liu HW, Jiang L, Huang DN, Wei HM, Liu Z. [The clinical characteristics and two different treatment outcomes of 321 patients with hypopharyngeal squamous cell carcinoma]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2019; 33:275-279. [PMID: 30813702 DOI: 10.13201/j.issn.1001-1781.2019.03.022] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 10/10/2018] [Indexed: 11/12/2022]
Abstract
Objective:To investigate the clinical characteristics, two different treatment outcomes and prognostic factors of hypopharyngeal carcinoma. Method:The life table method was used to calculate the overall survival rates, Log-rank test was used to compare the overall survival rates between the two groups.The Cox proportional hazard model was used to perform the multivariate analysis to confirm independent treatment modalities as prognostic factors. Result:Among the 321 patients, 197 patients received surgery combine with radiotherapy or concurrent chemoradiotherapy treatment(S+R/CRT) and 124 patients received radiotherapy or concurrent chemoradiotherapy treatment(R/CRT). For 321 patients, the 1,3,5year overall survival rates were 75.87%,49.39%,41.38% and the median survival time was 37.65 months. The difference in throat retention ratio between the radiotherapy or concurrent chemoradiotherapy treatment(41.94%) and surgery combine with radiotherapy or concurrent chemoradiotherapy treatment(11.17%) was statistically significant (P<0.01).Univariate analysis showed that clinical stage of tumor, T stage, N stage, M stage and two different treatment modalities have impact on survival prognosis. Cox regression multivariate analysis showed that T stage, N stage, two different treatment modalities were independent risk factors of prognosis. Conclusion:The overall prognosis of hypopharyngeal carcinoma was poor and dismal. Hypopharyngeal carcinoma is characterized by high degree of malignancy, difficult to be found early, prone to recurrence and metastasis after operation, large trauma and poor prognosis. Comprehensive examination should be conducted to define the stage of tumor and choose the rational treatment plan before treatment. Surgery combine with radiotherapy or chemotherapy treatment modality is still the main treatment strategy for advanced-stage hypopharyngeal carcinoma..
Collapse
Affiliation(s)
- T Lu
- Department of Head and Neck Surgery, Cancer Hospital of China Medical University, Liaoning Tumour Hospital, Shenyang, 110042, China
| | - Z D Li
- Department of Head and Neck Surgery, Cancer Hospital of China Medical University, Liaoning Tumour Hospital, Shenyang, 110042, China
| | - S C Li
- Department of Head and Neck Surgery, Cancer Hospital of China Medical University, Liaoning Tumour Hospital, Shenyang, 110042, China
| | - Y G Li
- Department of Head and Neck Surgery, Cancer Hospital of China Medical University, Liaoning Tumour Hospital, Shenyang, 110042, China
| | - H W Liu
- Department of Head and Neck Surgery, Cancer Hospital of China Medical University, Liaoning Tumour Hospital, Shenyang, 110042, China
| | - L Jiang
- Department of Head and Neck Surgery, Cancer Hospital of China Medical University, Liaoning Tumour Hospital, Shenyang, 110042, China
| | - D N Huang
- Department of Head and Neck Surgery, Cancer Hospital of China Medical University, Liaoning Tumour Hospital, Shenyang, 110042, China
| | - H M Wei
- Department of Head and Neck Surgery, Cancer Hospital of China Medical University, Liaoning Tumour Hospital, Shenyang, 110042, China
| | - Z Liu
- Department of Head and Neck Surgery, Cancer Hospital of China Medical University, Liaoning Tumour Hospital, Shenyang, 110042, China
| |
Collapse
|
30
|
Chen GH, Huang HW, Wang Y, Liu HW, Xu LJ, Ma X, Xue SL, He XF, Wang Y, Gu B, Li CX, Qiu HY, Tang XW, Jin ZM, Miao M, Sun AN, Wu DP. [An experimental study of CD4 targeted chimeric antigen receptor modified T cell with anti-lymphoma activity]. Zhonghua Xue Ye Xue Za Zhi 2019; 39:148-152. [PMID: 29562451 PMCID: PMC7342564 DOI: 10.3760/cma.j.issn.0253-2727.2018.02.014] [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] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
目的 探讨针对CD4膜蛋白的CAR-T细胞对CD4+T细胞淋巴瘤细胞的靶向特异性杀伤作用。 方法 采用重组DNA技术构建含4-1BB共刺激分子的第二代针对CD4的CAR慢病毒载体,应用293T细胞包装慢病毒,采用流式细胞术检测T细胞的转染效率及T细胞亚群动态变化,采用流式细胞术微球法检测培养上清中IFN-γ浓度。 结果 ①构建的慢病毒载体转染激活的T细胞后CAR膜蛋白阳性率达到50.0%~70.0%。T细胞激活后部分CD8+T细胞弱表达(dim)CD4膜蛋白。T细胞转染针对CD4的CAR慢病毒后CD4+ T细胞、CD8+ CD4dim T细胞逐渐被清除。②CAR-T细胞、对照组T细胞(空载体转染的T细胞)以8∶1效靶比分别与CD4+人T细胞淋巴瘤细胞株KARPAS 299细胞共培养24 h,杀伤效率分别为(96.9±2.1)%和(11.2±3.1)%,前者明显高于后者(t=7.137,P=0.028)。③CAR-T细胞单独培养,与转染慢病毒载体表达人CD4的K562细胞(K562-CD4细胞)、K562细胞共培养后上清中IFN-γ浓度分别为(1 785±268)、(15 648±2 168)、(1 978±354)pg/ml,CAR-T细胞与K562-CD4细胞共培养上清IFN-γ浓度明显高于其他两组,差异有统计学意义(P<0.01)。 结论 CD4特异性CAR-T细胞效应细胞免疫表型为CD8+ CD4+ T细胞,在体外具有杀伤正常CD4+ T细胞和CD4+ T细胞淋巴瘤细胞的活性,对于CD4dim T细胞也有较好的清除活性。
Collapse
Affiliation(s)
- G H Chen
- The First Affiliated Hospital of Soochow University, Jiangsu Institute of Hematology, Collaborative Innovation Center of Hematology, Suzhou Institute of Blood and Marrow Transplantation, Suzhou 215006, China
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
31
|
|
32
|
Feng S, Liu HW, Chiu ACF, Ng CWW. A steady-state analytical profile method for determining methane oxidation in landfill cover. Sci Total Environ 2019; 646:1528-1535. [PMID: 30235637 DOI: 10.1016/j.scitotenv.2018.07.097] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/22/2018] [Revised: 06/09/2018] [Accepted: 07/08/2018] [Indexed: 06/08/2023]
Abstract
Gas concentration profiles of carbon dioxide (CO2), oxygen (O2), methane (CH4) and nitrogen (N2) are usually measured during tests investigating microbial aerobic methane oxidation in landfill cover. However, only qualitative/limited information can be obtained from gas concentration profiles by existing methods. A new method is proposed to determine methane oxidation in soil quantitatively and comprehensively, including methane oxidation efficiency, stoichiometry, gas transfer mechanism, methane generation rate and gas reaction rate distributions. Governing equations are established based on mass balance for O2, CO2, CH4 and N2 at one-dimensional and steady-state condition. Gas transfer mechanisms considered include gas diffusion, advection and gas reaction. The method utilizes gas concentration profiles to determine gas diffusion for each gas component according to Fick's law. Then gas advections and reactions can be determined by mass balance. The method is validated by (i) published soil column tests investigating methane oxidation and (ii) a calibrated numerical model based on a selected soil column test. The new method is capable of determining methane oxidation efficiency, stoichiometry, gas transfer mechanism, methane generation rate and gas reaction rate distributions for CH4, CO2 and O2.
Collapse
Affiliation(s)
- S Feng
- College of Civil Engineering, Fuzhou University, Fuzhou City, Fujian Province, China; Department of Civil and Environmental Engineering, Hong Kong University of Science and Technology, Hong Kong, China.
| | - H W Liu
- Department of Civil and Environmental Engineering, Hong Kong University of Science and Technology, Hong Kong, China; College of Environment and Resources, Fuzhou University, Fuzhou City, Fujian Province, China.
| | - A C F Chiu
- Key Laboratory of Ministry of Education for Geomechanics and Embankment Engineering, Hohai University, 1 Xikang Road, Nanjing 210098, China.
| | - C W W Ng
- Department of Civil and Environmental Engineering, Hong Kong University of Science and Technology, Hong Kong, China.
| |
Collapse
|
33
|
Liu HW, Meng Y, Zhang J, Ren YB, Li YC, Wang Y, Wang JJ. Role and influence of p75NTR receptor on antioxidative damage of retinal pigment epithelial cells. J BIOL REG HOMEOS AG 2018; 32:1379-1387. [PMID: 30574742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
The study aimed to investigate the role and mechanism of the p75 NTR receptor in the oxidative damage of retinal pigment epithelial cells (RPE). RPE cells transfected with the p75 NTR receptor were used as the experimental group, and the untransfected RPE cells as the control group. BrdU (5-Bromo-2-deoxyUridine) was used to detect cell proliferation activity; PI/Annexin V-FITC (fluorescein isothiocyanate, FITC) double staining was used to detect the apoptosis rate of the cells. The expression of reactive oxygen species (ROS) in cells was observed by laser microscope, and the expression of ROS, mitochondrial markers, and C expression of cytochrome in cells was detected by flow cytometry. Western blot was used to detect the Fas protein, pyrolysis Caspase-3, and expression level of the vascular endothelial growth factor 165 (VEGF165) protein. The results showed that the proliferation activity of RPE cells in the experimental group decreased gradually with the increase of transfection time, and the apoptosis rate of RPE cells in the experimental group increased gradually with the increase of transfection time, and the apoptosis rate of RPE cells at each time point was significantly higher than that of the control group. The fluorescence intensity of ROS in the experimental group was significantly stronger than that in the control group (P less than 0.01). The fluorescence intensity of cytochrome C in the RPE cells in the experimental group was significantly higher than that in the control group, while the number of positive mitochondria markers in the experimental group was less than that of the control group and the fluorescence intensity was weakened. The expression of Fas protein, Caspase-3 and VEGF165 protein in the experimental group was significantly higher than that in the control group (P less than 0.01). In conclusion, p75 NTR receptor may be a cause of oxidative damage in RPE cells. .
Collapse
Affiliation(s)
- H W Liu
- Department of Ophthalmology, First Affiliated Hospital of Jiamusi University, Jiamusi, Heilongjiang, China
| | - Y Meng
- Department of Ophthalmology, First Affiliated Hospital of Jiamusi University, Jiamusi, Heilongjiang, China
| | - J Zhang
- Department of Ophthalmology, First Affiliated Hospital of Jiamusi University, Jiamusi, Heilongjiang, China
| | - Y B Ren
- Department of Ophthalmology, First Affiliated Hospital of Jiamusi University, Jiamusi, Heilongjiang, China
| | - Y C Li
- Department of Ophthalmology, First Affiliated Hospital of Jiamusi University, Jiamusi, Heilongjiang, China
| | - Y Wang
- Department of Pharmacology and Toxicology, Wright State University, Fairborn, OH, USA
| | - J J Wang
- Department of Immunology, College of Basic Medicine, Jiamusi University, Jiamusi, Heilongjiang, China
| |
Collapse
|
34
|
Liu HW, Smith CB, Schmidt MS, Cambronne XA, Cohen MS, Migaud ME, Brenner C, Goodman RH. Pharmacological bypass of NAD + salvage pathway protects neurons from chemotherapy-induced degeneration. Proc Natl Acad Sci U S A 2018; 115:10654-10659. [PMID: 30257945 PMCID: PMC6196523 DOI: 10.1073/pnas.1809392115] [Citation(s) in RCA: 75] [Impact Index Per Article: 12.5] [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: 01/18/2023] Open
Abstract
Axon degeneration, a hallmark of chemotherapy-induced peripheral neuropathy (CIPN), is thought to be caused by a loss of the essential metabolite nicotinamide adenine dinucleotide (NAD+) via the prodegenerative protein SARM1. Some studies challenge this notion, however, and suggest that an aberrant increase in a direct precursor of NAD+, nicotinamide mononucleotide (NMN), rather than loss of NAD+, is responsible. In support of this idea, blocking NMN accumulation in neurons by expressing a bacterial NMN deamidase protected axons from degeneration. We hypothesized that protection could similarly be achieved by reducing NMN production pharmacologically. To achieve this, we took advantage of an alternative pathway for NAD+ generation that goes through the intermediate nicotinic acid mononucleotide (NAMN), rather than NMN. We discovered that nicotinic acid riboside (NAR), a precursor of NAMN, administered in combination with FK866, an inhibitor of the enzyme nicotinamide phosphoribosyltransferase that produces NMN, protected dorsal root ganglion (DRG) axons against vincristine-induced degeneration as well as NMN deamidase. Introducing a different bacterial enzyme that converts NAMN to NMN reversed this protection. Collectively, our data indicate that maintaining NAD+ is not sufficient to protect DRG neurons from vincristine-induced axon degeneration, and elevating NMN, by itself, is not sufficient to cause degeneration. Nonetheless, the combination of FK866 and NAR, which bypasses NMN formation, may provide a therapeutic strategy for neuroprotection.
Collapse
Affiliation(s)
- Hui-Wen Liu
- Vollum Institute, Oregon Health & Science University, Portland, OR 97239
| | - Chadwick B Smith
- Vollum Institute, Oregon Health & Science University, Portland, OR 97239
| | - Mark S Schmidt
- Department of Biochemistry, Carver College of Medicine, University of Iowa, Iowa City, IA 55242
| | - Xiaolu A Cambronne
- Vollum Institute, Oregon Health & Science University, Portland, OR 97239
| | - Michael S Cohen
- Department of Physiology and Pharmacology, Oregon Health & Science University, Portland, OR 97239
| | - Marie E Migaud
- Mitchell Cancer Institute, University of South Alabama, Mobile, AL 33604
| | - Charles Brenner
- Department of Biochemistry, Carver College of Medicine, University of Iowa, Iowa City, IA 55242;
| | - Richard H Goodman
- Vollum Institute, Oregon Health & Science University, Portland, OR 97239;
| |
Collapse
|
35
|
Chan LC, Bourke C, Lam CK, Liu HW, Brookes S, Jenkins V, Pasi J. Lack of Activated Protein C Resistance in Healthy Hong Kong Chinese Blood Donors - Correlation with Absence of Arg506-Gln Mutation of Factor V Gene. Thromb Haemost 2018. [DOI: 10.1055/s-0038-1665404] [Citation(s) in RCA: 22] [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: 10/28/2022]
Affiliation(s)
- L C Chan
- The Haematology Section, Department of Pathology, University of Hong Kong, Hong Kong
| | - C Bourke
- The Haematology Section, Department of Pathology, University of Hong Kong, Hong Kong
| | - C K Lam
- The Haematology Section, Department of Pathology, University of Hong Kong, Hong Kong
| | - H W Liu
- Hong Kong Red Cross Blood Transfusion Service, Hong Kong
| | - S Brookes
- Haemophilia Centre & Haemostasis Unit, Department of Haematology, Royal Free Hospital and School of Medicine, United Kingdom
| | - V Jenkins
- Haemophilia Centre & Haemostasis Unit, Department of Haematology, Royal Free Hospital and School of Medicine, United Kingdom
| | - J Pasi
- Haemophilia Centre & Haemostasis Unit, Department of Haematology, Royal Free Hospital and School of Medicine, United Kingdom
| |
Collapse
|
36
|
Liu HW, Kwong YL, Bourke C, Lam CK, Lie AKW, Wei D, Chan LC. High Incidence of Thrombophilia Detected in Chinese Patients with Venous Thrombosis. Thromb Haemost 2018. [DOI: 10.1055/s-0038-1642452] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
SummaryVenous thromboembolism is rare in Chinese. To determine the incidence and disease profile of thrombophilia in Chinese patients with thrombosis, 52 unselected Chinese patients with documented venous thrombosis were studied for the presence of thrombophilia. Levels of antithrombin III (AT III), protein C (PC) and protein S (PS) as well as the presence of acquired lupus anticoagulant (LA) and anticardiolipin antibody (ACA) were investigated. Thirty patients were found to be abnormal. These consisted of 5 AT III deficiencies, 9 PC deficiencies, 10 PS deficiencies, 1 combined PC & PS deficiency (all in the heterozygous range), and 5 patients with LA and/or ACA. When the patients with LA and/or ACA are excluded, the incidence of hereditary thrombophilia is 25/47 i.e. 53.2%' which is much higher than those reported in studies of Caucasian patients selected under strict criteria. Family studies performed in 16 cases ot hereditary thrombophilia revealed involvement in 11 cases (68.7%); a total of 36 heterozygous family members were affected, most of which remain asymptomatic. Although 35 events predisposing to thrombosis (27 pregnancies, 1 oral contraceptive consumption and 7 surgical operations) were identified among these index patients, and the heterozygous family members, thrombosis was observed on only 6 occasions (17.1%). The data suggest that pregnancy and surgery do not carry the same degree of thrombotic risk in Chinese as in the Caucasian population with heterozygous AT III, PC and PS deficiency.
Collapse
Affiliation(s)
- H W Liu
- The Department of Pathology and Department of Medicine, Queen Mary Hospital, University of Hong Kong, Hong Kong
| | - Y L Kwong
- The Department of Pathology and Department of Medicine, Queen Mary Hospital, University of Hong Kong, Hong Kong
| | - C Bourke
- The Department of Pathology and Department of Medicine, Queen Mary Hospital, University of Hong Kong, Hong Kong
| | - C K Lam
- The Department of Pathology and Department of Medicine, Queen Mary Hospital, University of Hong Kong, Hong Kong
| | - A K W Lie
- The Department of Pathology and Department of Medicine, Queen Mary Hospital, University of Hong Kong, Hong Kong
| | - D Wei
- The Department of Pathology and Department of Medicine, Queen Mary Hospital, University of Hong Kong, Hong Kong
| | - L C Chan
- The Department of Pathology and Department of Medicine, Queen Mary Hospital, University of Hong Kong, Hong Kong
| |
Collapse
|
37
|
Qian CF, Fan GS, Liao QP, Wu SY, La DD, Di W, Dong BH, Liu HW, Tang LD, Xiong ZA, Zhang HW, Hu YL, Yang NM, Ren ML, Shi H, Deng GP, Huang ZR. [Efficacy and safety of low-dose levonorgestrel-releasing intrauterine system in Chinese women: a multicenter, single-arm, open labeled interventional trial]. Zhonghua Fu Chan Ke Za Zhi 2018; 53:409-413. [PMID: 29961284 DOI: 10.3760/cma.j.issn.0529-567x.2018.06.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To evaluate the efficacy, bleeding profile and safety of low-dose levonorgestrel-releasing intrauterine system (LNG-IUS 8) in Chinese healthy women of childbearing age. Methods: A multi-center, open-label, single-arm clinical trial conducted at 16 centres in China enrolled 773 healthy women of childbearing age (mean age 31.6 years old, range 18 to 40 years old) , who demanded contraception, from April 2006 to June 2013. All women placed LNG-IUS 8 for 3 years and then been followed up at 3, 6, 9, 12, 18, 24, 30, 36 months. The efficacy variables including pregnancy rate and expulsion rate were analyzed using life table, while observing adverse events (AE) to evaluate the safety. The bleeding profile happened during the study was assessed using 90-day reference intervals (World Health Organization criteria) . Results: Eight pregnancies occurred among 773 women, resulting in a overall Pearl index of 0.42 per 100 women years. The 3-year cumulative pregnancy rate was 0.37 per 100 women years and the 3-year cumulative expulsion rate was 1.99 per 100 women years. The number of women with bleeding/spotting reduced and the bleeding/spotting days declined over time. Totally 219 AE were reported related to LNG-IUS 8 placements. The most common AE were vaginal bleeding (8.2%, 63/773) and the ovarian cyst (6.2%, 52/773) . LNG-IUS 8 had an improving effect on dysmenorrhea that the percentage of women with dysmenorrhea as well as the days of dysmenorrhea decreased over time. The percentage of women satisfied or very satisfied with LNG-IUS 8 was 87.2% (622/713) . Conclusion: LNG-IUS 8 is highly effective and safe for Chinese healthy women of childbearing age.
Collapse
Affiliation(s)
- C F Qian
- Department of Family Planning, Obstetrics and Gynecology Hospital of Fudan University, Shanghai 200011, China
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
38
|
Zheng QY, Kuang MD, Li Y, Wu XT, Huang JY, Zhang CT, Liu HW, Lu WJ, Wang J, Chen YQ. [Establishment and evaluation of a new method for determining hemodynamics of pulmonary hypertension rats]. Zhonghua Jie He He Hu Xi Za Zhi 2018; 41:485-490. [PMID: 29886624 DOI: 10.3760/cma.j.issn.1001-0939.2018.06.010] [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: By evaluating the hemodynamic parameters such as cardiac output (CO), right ventricular pressure (RVP), pulmonary artery pressure (PAP) and total pulmonary resistance index (TPRI) in pulmonary hypertension rat model, we established a more comprehensive hemodynamic evaluation system, which objectively evaluated the severity of disease and exercise tolerance in rats with pulmonary hypertension. Methods: SD rats were randomly divided into a control group and a model group with 5 rats in each group. The model group was intraperitoneally injected with SU5416 (20 mg/kg) and placed in an oxygen chamber at a 10% oxygen concentration for 21 days and then placed in a normoxic environment for 14 days. After modeling, rats were anesthetized and mechanically ventilated. The operator cut the skin along the right paraxial line, detached and ligated the intercostal artery, and then cut off the 3 and 4 ribs, exposing the heart and freeing aortic root about 0.2 cm. The flowmeter probe was set in the dissected aortic segment, and real-time recording time, blood flow waveforms, cardiac output were calculated accordingly. Then the needle attached to the baroreceptor was inserted into the right ventricle and the system acquired the right ventricular time-pressure waveform. After the waveform stabilized for about 30 seconds, the end of the cannula was sent to the pulmonary artery trunk through the entrance of the pulmonary artery to record the time-pressure curve of the pulmonary artery. Results: RVSP, PASP, PADP and mPAP in the model group were significantly higher than those of the control group [ RVSP(23.4±5.4) mmHg, 1 mmHg=0.133 kPa vs (56.4±13.0) mmHg, PASP (22.8±4.4) mmHg vs (58.5±14.9) mmHg, PADP (9.7±1.9) mmHg vs (30.3±7.0) mmHg, mPAP (14.1±2.7) mmHg vs (41.9±8.0) mmHg, all P<0.05 ]. Compared with the control group, the cardiac index in the model group was significantly lower [ CI (0.54±0.08) ml·min(-1)·g(-1) vs (0.40±0.09) ml·min(-1)·g(-1,) P=0.02 ]. Furthermore, compared with the control group, pulmonary vascular resistance index was significantly increased in the model group[PVRI (0.27±0.03) mmHg·ml(-1)·min(-1)·kg(-1) vs (0.06±0.01) mmHg·ml(-1)·min(-1)·kg(-1,) P<0.05]. The pathological results also showed that the middle part of pulmonary arterioles in the model group had muscular hypertrophy and muscular pulmonary arterioles, and even plexiform lesions. Conclusion: In this study, we established a new method that simultaneously determined several hemodynamic parameters such as RVSP, PASP, PADP, CO, CI and PVRI, which provided a more comprehensive assessment of hemodynamic changes in pulmonary hypertension rat models.
Collapse
Affiliation(s)
- Q Y Zheng
- Guangzhou Institute of Respiratory Diseases, State Key Laboratory of Respiratory Diseases, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital, Guangzhou Medical University, Guangzhou 510120, China
| | | | | | | | | | | | | | | | | | | |
Collapse
|
39
|
Liu WZ, Li ZD, Li SC, Liu HW, Fang FQ, Xu CJ, Li YG. [Study on the metastatic sequence of cervix lymph node in hypopharyngeal carcinoma]. Zhonghua Zhong Liu Za Zhi 2018; 39:937-941. [PMID: 29262512 DOI: 10.3760/cma.j.issn.0253-3766.2017.12.011] [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 metastatic sequence of cervical lymph node in hypopharyngeal carcinoma aimed at guiding neck exploration. Methods: Seventy-five serial sections of integrally dissected lateral neck specimens from 67 patients of hypophayryngeal carcinoma were histopathologically observed, and the metastatic sequence of cervical lymph node of hypophayryngeal carcinoma were analysed. Results: In 75 integrally dissected lateral neck specimens, 63 laterals were found to occur cervical lymph node metastases, the metastatic ratio was 84.0%. The analytic result of 63 dissected lateral neck specimens with positive lymph nodes showed that the metastatic lymph node ratio in descending order was level Ⅱ (90.5%), level Ⅲ (76.2%), level Ⅳ (41.3%), level Ⅴ (15.9%), level Ⅰ (7.9%) and level Ⅵ (3.2%). The metastatic ratio of lymph node between level Ⅰ~Ⅵ were significantly different from each other (P<0.01). When the tumor metastasized to one cervical lymph node, this could be found in levels Ⅱ or Ⅲ, when metastasized to two cervical lymph nodes, these could be found in levels Ⅱ, Ⅲ, Ⅳ, and when metastasized to more than 5 of cervical lymph nodes, these could be found in levels Ⅱ, Ⅲ, Ⅳ, Ⅴ, Ⅰand Ⅵ. According to the occurring sequence, metastatic ratio and number of cervical lymph node metastasis (LNM), levels Ⅱ and Ⅲ were identified as the first station, level Ⅳ was the second station and levels Ⅴ, Ⅰ and Ⅵ were the third station of cervical LNM in hypopharyngeal carcinoma. Conclusion: The confirmation of metastatic sequence of cervical lymph node in hypophayryngeal carcinoma provides a reliable evidence for neck lymph node dissection and reference value for clinic therapy.
Collapse
Affiliation(s)
- W Z Liu
- Department of Head and Neck Surgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang 110042, China
| | - Z D Li
- Department of Head and Neck Surgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang 110042, China
| | - S C Li
- Department of Head and Neck Surgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang 110042, China
| | - H W Liu
- Department of Head and Neck Surgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang 110042, China
| | - F Q Fang
- Department of Head and Neck Surgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang 110042, China
| | - C J Xu
- Department of Head and Neck Surgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang 110042, China
| | - Y G Li
- Department of Head and Neck Surgery, Cancer Hospital of China Medical University, Liaoning Cancer Hospital & Institute, Shenyang 110042, China
| |
Collapse
|
40
|
Feng S, Leung AK, Ng CWW, Liu HW. Theoretical analysis of coupled effects of microbe and root architecture on methane oxidation in vegetated landfill covers. Sci Total Environ 2017; 599-600:1954-1964. [PMID: 28549371 DOI: 10.1016/j.scitotenv.2017.04.025] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/04/2017] [Revised: 04/02/2017] [Accepted: 04/04/2017] [Indexed: 06/07/2023]
Abstract
Reduction of soil moisture by plant root-water uptake could improve soil aeration for microbial aerobic methane oxidation (MAMO) in a landfill cover, but excessive soil moisture removal could suppress microbial activity due to water shortage. Existing models ignore the coupled microbe-vegetation interaction. It is thus not known whether the presence of plants is beneficial or adverse to MAMO. This study proposes a newly-improved theoretical model that couples the effects of root-water uptake and microbial activity for capturing water-gas flow and MAMO in unsaturated soils. Parametric studies are conducted to investigate the effects of root characteristics and transpiration rate on MAMO efficiency. Uniform, parabolic, exponential and triangular root architectures are considered. Ignoring the effects of water shortage on microbe over-predicts the MAMO efficiency significantly, especially for plants with traits that give high root-water uptake ability (i.e., uniformly-rooted and long root length). The effects of plants on MAMO efficiency depends on the initial soil moisture strongly. If the soil is too dry (i.e., close to the permanent wilting point), plant-water uptake, with any root architecture considered, would reduce MAMO efficiency as further soil water removal by plants suppresses microbial activity. Plants with exponential or triangular root architectures could preserve 10% higher MAMO than the other two cases. These two architectures are more capable of minimizing the adverse effects of root-water uptake due to microbial water shortage. This implies that high-water-demand plants such as those with long root length and with uniform or parabolic root architectures require more frequent irrigation to prevent from excessive reduction of MAMO efficiency.
Collapse
Affiliation(s)
- S Feng
- Department of Civil and Environmental Engineering, Hong Kong University of Science and Technology, Hong Kong
| | - A K Leung
- School of Science and Engineering, University of Dundee, United Kingdom
| | - C W W Ng
- Department of Civil and Environmental Engineering, Hong Kong University of Science and Technology, Hong Kong
| | - H W Liu
- Department of Civil and Environmental Engineering, Hong Kong University of Science and Technology, Hong Kong.
| |
Collapse
|
41
|
Liu HW, Li K, Zhao JS, Deng W. Effects of chestnut tannins on intestinal morphology, barrier function, pro-inflammatory cytokine expression, microflora and antioxidant capacity in heat-stressed broilers. J Anim Physiol Anim Nutr (Berl) 2017; 102:717-726. [PMID: 29119618 DOI: 10.1111/jpn.12839] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [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: 05/05/2017] [Accepted: 10/09/2017] [Indexed: 01/01/2023]
Abstract
A study was conducted to evaluate the effects of chestnut tannins (CT) on intestinal morphology, barrier function, pro-inflammatory cytokine expression, microflora and antioxidant capacity in heat-stressed broilers. Four hundred 28-day-old male Ross 308 broilers were randomly assigned into four groups, with 10 replicates per group and 10 broilers per replicate. The broilers in the normal (NOR) group were kept at 22 ± 1°C and fed the basal diet, and each of the other three groups were treated with cyclic heat (33 ± 1°C from 0800 to 1800 and 22 ± 1°C from 1800 to 0800) and fed the basal diet with 0 (HT), 1 (CT1) or 2 (CT2) g of CT/kg of diet. The experiment lasted for 14 days. Compared with the HT group, broilers in the NOR and CT2 groups had higher (p < .05) average daily gain and villus height in the jejunum and lower serum d-lactate (p < .001) and diamine oxidase (p < .01) levels. The addition of 2 g CT/kg of diet increased the total antioxidant capacity (p < .001) and superoxide dismutase activities (p < .05) and zonula occludens-1 mRNA expression level (p < .05) and decreased the malondialdehyde concentration (p < .01) and mRNA expression levels of interleukin-6 (p < .001) and nuclear factor kappa B (p < .001) in the jejunal mucosa of heat-stressed broilers. The populations of Escherichia coli and Clostridium in the jejunum (p < .01) and caecum (p < .05) of broilers in the HT group were higher than those in the NOR and CT2 groups. In conclusion, the addition of 2 g CT/kg of diet seemed to be a feasible means of alleviating the negative effects of heat stress on the growth performance and intestinal function of broilers.
Collapse
Affiliation(s)
- H W Liu
- Qingdao Agricultural University, Qingdao, China
| | - K Li
- New Hope Liuhe Corp. Ltd., Beijing, China
| | - J S Zhao
- Qingdao Agricultural University, Qingdao, China
| | - W Deng
- Institute of Animal Husbandry and Veterinary Science, Henan Academy of Agricultural Sciences, Zhengzhou, China
| |
Collapse
|
42
|
Feng S, Ng CWW, Leung AK, Liu HW. Numerical modelling of methane oxidation efficiency and coupled water-gas-heat reactive transfer in a sloping landfill cover. Waste Manag 2017; 68:355-368. [PMID: 28545891 DOI: 10.1016/j.wasman.2017.04.042] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/22/2016] [Revised: 03/16/2017] [Accepted: 04/24/2017] [Indexed: 06/07/2023]
Abstract
Microbial aerobic methane oxidation in unsaturated landfill cover involves coupled water, gas and heat reactive transfer. The coupled process is complex and its influence on methane oxidation efficiency is not clear, especially in steep covers where spatial variations of water, gas and heat are significant. In this study, two-dimensional finite element numerical simulations were carried out to evaluate the performance of unsaturated sloping cover. The numerical model was calibrated using a set of flume model test data, and was then subsequently used for parametric study. A new method that considers transient changes of methane concentration during the estimation of the methane oxidation efficiency was proposed and compared against existing methods. It was found that a steeper cover had a lower oxidation efficiency due to enhanced downslope water flow, during which desaturation of soil promoted gas transport and hence landfill gas emission. This effect was magnified as the cover angle and landfill gas generation rate at the bottom of the cover increased. Assuming the steady-state methane concentration in a cover would result in a non-conservative overestimation of oxidation efficiency, especially when a steep cover was subjected to rainfall infiltration. By considering the transient methane concentration, the newly-modified method can give a more accurate oxidation efficiency.
Collapse
Affiliation(s)
- S Feng
- Department of Civil and Environmental Engineering, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong.
| | - C W W Ng
- Department of Civil and Environmental Engineering, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong.
| | - A K Leung
- School of Science and Engineering, University of Dundee, Fulton Building, Nethergate, Dundee, Scotland DD1 4HN, UK.
| | - H W Liu
- Department of Civil and Environmental Engineering, Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong.
| |
Collapse
|
43
|
Li SC, Li ZD, Liu HW, Dong HL, Xu Y. [The clinical characteristics and treatment strategies of differentiated thyroid carcinoma in adolescents and children]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2017; 31:431-437. [PMID: 29871280 DOI: 10.13201/j.issn.1001-1781.2017.06.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 11/05/2016] [Indexed: 11/12/2022]
Abstract
Objective:To study the clinical characteristics and treatment strategies of differentiated thyroid carcinoma in adolescents and children.Method:From 1983 to 2014, total 2936 patients with the thyroid cancer were collected in our hospital, among which there were 85 patients of adolescents and children with 61 female and 24 male. The age was from 9 to 21 years old (median 18.3 years). There were 12 cases less than 14 years.The pathologic diagnoses were papillary carcinoma 76 cases and follicular carcinoma 9 cases. The clinical material, history of disease, clinical presentation, TNM classification, histopathological features, treatment method, and the final follow-up results were analyzed and studied. Result:Overall survival rate was 100%, follow-up from 0.5 to 31 years(medium 10.9 years), 10 year progression free survival rate was 87.1%. There was no mortality and 8(9.4%)cases occurred recurrence,who followed by surgery and resumed finally. There were 20 cases found extrathyroid extention, including 8 cases less than 14 years and 12 cases older than 15 years. The extrathyroid extention rate was significantly higher in cases of lower years(66.7%)than other group(16.4%)(P<0.01). Forty-nine(57.6%) cases were found lymphanods metastases, among them ≤14 years metastases rate 92.0%(11/12)significantly more than ≥15 years metastases rate 52.1%(38/73) (P<0.05). Three patients suffered with pulmonary metastases and all of them were ≤14 years patients. All of 85 patients were received surgery treatment included total, subtotal and oneside thyroidectomy. The neck lymph nodes were underwent modefied, radical or no neck dissection. Fifteen patients were received 131I therapy postoperatively, the dosage was 50~170 mCi. All of 85 patients were received TSH suppression therapy. 13 cases(15.3%) occurred complications,such as laryngeal recurrent nerve paralysis and hypoparathyroidism commonly. Conclusion:Majority of thyroid cancer for adolescents and children are papillary and follicular carcinoma. The histopathologic feature has significant invasion beyond thyroid capsula, and metastasis to the lymphanods and distante area,especially ≤14 years patients significant more than ≥15 years. The prognosis is favorable, it is few death from thyroid cancer. The treatment means is surgery to resect all of the disease, sometimes should perform total or neartotal thyroidectomy if there are distant metastasis and extensive invasion. It should pay attention to preserve the function of recurrent laryngeal nerve and parathyroid gland. Most of them can be performed unilateral lobectomy if the tumor located oneside thyroid gland. The lymphanode metastasis should be undertaken modified neck dissection, make effort to avoid radical neck dissection. It should be carful to use 131I internal radiation therapy and avoid the excessive treatment.
Collapse
Affiliation(s)
- S C Li
- Department of Head and Neck Surgery,China Medical University Cancer Hospital,Liaoning Cancer Hospital and Institute,Shenyang,110042,China
| | - Z D Li
- Department of Head and Neck Surgery,China Medical University Cancer Hospital,Liaoning Cancer Hospital and Institute,Shenyang,110042,China
| | - H W Liu
- Department of Head and Neck Surgery,China Medical University Cancer Hospital,Liaoning Cancer Hospital and Institute,Shenyang,110042,China
| | - H L Dong
- Department of Head and Neck Surgery,China Medical University Cancer Hospital,Liaoning Cancer Hospital and Institute,Shenyang,110042,China
| | - Y Xu
- Department of Head and Neck Surgery,China Medical University Cancer Hospital,Liaoning Cancer Hospital and Institute,Shenyang,110042,China
| |
Collapse
|
44
|
Sze SF, Lam P, Lam YS, Liu HW, Mak WY, Lam TW. Gastrointestinal: A rare cause of bloody diarrhea-Gastrointestinal amyloidosis. J Gastroenterol Hepatol 2016; 31:1913. [PMID: 27164490 DOI: 10.1111/jgh.13440] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Accepted: 05/05/2016] [Indexed: 12/09/2022]
Affiliation(s)
- S F Sze
- Department of Medicine, Queen Elizabeth Hospital, Jordan, Kowloon, Hong Kong
| | - Pwy Lam
- Department of Pathology, Queen Elizabeth Hospital, Jordan, Kowloon, Hong Kong
| | - Y S Lam
- Department of Medicine, Queen Elizabeth Hospital, Jordan, Kowloon, Hong Kong
| | - H W Liu
- Department of Medicine, Queen Elizabeth Hospital, Jordan, Kowloon, Hong Kong
| | - W Y Mak
- Department of Medicine, Queen Elizabeth Hospital, Jordan, Kowloon, Hong Kong
| | - T W Lam
- Department of Medicine, Queen Elizabeth Hospital, Jordan, Kowloon, Hong Kong
| |
Collapse
|
45
|
Abstract
We report a comparative polarized Raman study of Weyl semimetals TaAs, NbAs, TaP and NbP. The evolution of the phonon frequencies with the sample composition allows us to determine experimentally which atoms are mainly involved for each vibration mode. Our results confirm previous first-principles calculations indicating that the A1, B1(2), E(2) and E(3) modes involve mainly the As(P) atoms, the B1(1) mode is mainly related to Ta(Nb) atoms, and the E(1) mode involves both kinds of atoms. By comparing the energy of the different modes, we establish that the B1(1), B1(2), E(2) and E(3) become harder with increasing chemical pressure. This behaviour differs from our observation on the A1 mode, which decreases in energy, in contrast to its behaviour under external pressure.
Collapse
Affiliation(s)
- H W Liu
- Beijing National Laboratory for Condensed Matter Physics, and Institute of Physics, Chinese Academy of Sciences, Beijing 100190, People's Republic of China
| | | | | | | | | |
Collapse
|
46
|
Han YL, Chen YD, Jiang TM, Ge JB, Cheng XS, Li JL, Chen YG, Ma YT, Xie Q, Ma LK, Zheng XQ, Yang BS, Chen SL, Wang G, Zhao X, Liu HW, Liang ZY, Liu ML, Wang HY, Li Y. [A large-scale, multicenter, retrospective study on efficacy of bivalirudin use during peri-percutaneous coronary intervention period for Chinese patients with coronary heart disease]. Zhonghua Xin Xue Guan Bing Za Zhi 2016; 44:121-7. [PMID: 26926504 DOI: 10.3760/cma.j.issn.0253-3758.2016.02.008] [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 observe the efficacy and safety of bivalirudin use in Chinese patients with coronary heart disease (CHD) during the peri-percutaneous coronary intervention(PCI) period. METHODS A total of 3 271 patients who underwent PCI and received periprocedural bivalirudin treatment between July 2013 and October 2015 from 88 centers of China were involved in this study. The primary outcome was 30-day net adverse clinical events (NACE a composite of major adverse cardiac or cerebral events (MACE, all-cause death, reinfarction, urgent target vessel revascularization, or stroke) or bleeding), the secondary outcome was stent thrombosis at 30 days. RESULTS The mean age of enrolled patients was (65.12±12.44) years old, 27.4%(889/3 244) of them were female. Percent of stable coronary disease (SCD), non-ST segment elevation acute coronary syndrome (NSTE-ACS) and ST elevation myocardial infarction (STEMI) was 5.0%(162/3 248), 44.6%(1 450/3 248) and 50.4%(1 636/3 248) respectively. Radial access was performed in 89.5% (2 879/3 271) patients, and 9.7% (316/3 271) and 34.1% (1 115/3 271) patients also received ticagrelor and tirofiban medication. 69.3% (2 266/3 271) patients received post-procedural bivalirudin infusion, in which 46.3% (1 050/2 266) was treated at PCI-does, with a median duration of 2.5(1.0, 4.0) h. During the 30-day follow-up, NACE occurred in 3.45% (103/2 988) patients, the incidence of MACE, death was 2.17% (65/2 994) and 1.03% (31/3 017), respectively and bleeding events were recorded in 1.37% (41/2 996) patients. Four cases (0.13%) of stent thrombosis (3 acute stent thrombosis) were recorded. CONCLUSION Peri-PCI Bivalirudin use is safe and related with low bleeding risk in Chinese CHD patients.
Collapse
Affiliation(s)
- Y L Han
- Department of Cardiology, General Hospital of Shenyang Military Region, Shenyang 110016, China
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | |
Collapse
|
47
|
Zhang DM, Pan YX, Zhang Y, Li ZK, Wu LQ, Liu HW, Zhang GY, Wang XF, Ma ZY. Antisense expression of Gossypium hirsutum UDP-glucuronate decarboxylase in Arabidopsis leads to changes in cell wall components. Genet Mol Res 2016; 15:gmr7409. [PMID: 26909959 DOI: 10.4238/gmr.15017409] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
UDP-glucuronate decarboxylase (UDP-xylose synthase; UXS, EC 4.1.1.35) is an essential enzyme of the non-cellulosic polysaccharide biosynthetic pathway. In the present study, using transient expression of fluorescently labeled Gossypium hirsutum UXS (GhUXS3) protein in onion epidermal cells, we observed that this protein was distributed in the cytoplasm. The GhUXS3 cDNA of cotton was expressed in an antisense orientation in Arabidopsis thaliana by Agrobacterium tumefaciens-mediated transformation. Homozygous plants showing down-regulation of UXS were analyzed with northern blots. Compared to the untransformed control, transgenic plant showed shorter roots, earlier blossom formation, and delayed senescence. Biochemical analysis indicated that levels of rhamnose, mannose, galactose, glucose, xylose, and cellulose were reduced in some of the down-regulated antisense plants. These results suggest that GhUXS3 regulates the conversion of non-cellulosic polysaccharides and modulates their composition in plant cell walls. We also discuss a possible cellular function for GhUXS in determining the quality of cotton fibers.
Collapse
Affiliation(s)
- D M Zhang
- North China Key Laboratory for Crop Germplasm Resources of Education Ministry/Key Laboratory of Crop Germplasm Resources of Hebei, Agricultural University of Hebei, Baoding, China
| | - Y X Pan
- North China University Science and Technology, Tangshan, China
| | - Y Zhang
- North China Key Laboratory for Crop Germplasm Resources of Education Ministry/Key Laboratory of Crop Germplasm Resources of Hebei, Agricultural University of Hebei, Baoding, China
| | - Z K Li
- North China Key Laboratory for Crop Germplasm Resources of Education Ministry/Key Laboratory of Crop Germplasm Resources of Hebei, Agricultural University of Hebei, Baoding, China
| | - L Q Wu
- North China Key Laboratory for Crop Germplasm Resources of Education Ministry/Key Laboratory of Crop Germplasm Resources of Hebei, Agricultural University of Hebei, Baoding, China
| | - H W Liu
- North China Key Laboratory for Crop Germplasm Resources of Education Ministry/Key Laboratory of Crop Germplasm Resources of Hebei, Agricultural University of Hebei, Baoding, China
| | - G Y Zhang
- North China Key Laboratory for Crop Germplasm Resources of Education Ministry/Key Laboratory of Crop Germplasm Resources of Hebei, Agricultural University of Hebei, Baoding, China
| | - X F Wang
- North China Key Laboratory for Crop Germplasm Resources of Education Ministry/Key Laboratory of Crop Germplasm Resources of Hebei, Agricultural University of Hebei, Baoding, China
| | - Z Y Ma
- North China Key Laboratory for Crop Germplasm Resources of Education Ministry/Key Laboratory of Crop Germplasm Resources of Hebei, Agricultural University of Hebei, Baoding, China
| |
Collapse
|
48
|
Ng CWW, Feng S, Liu HW. A fully coupled model for water-gas-heat reactive transport with methane oxidation in landfill covers. Sci Total Environ 2015; 508:307-319. [PMID: 25489976 DOI: 10.1016/j.scitotenv.2014.11.037] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/17/2014] [Revised: 11/09/2014] [Accepted: 11/10/2014] [Indexed: 06/04/2023]
Abstract
Methane oxidation in landfill covers is a complex process involving water, gas and heat transfer as well as microbial oxidation. The coupled phenomena of microbial oxidation, water, gas, and heat transfer are not fully understood. In this study, a new model is developed that incorporates water-gas-heat coupled reactive transport in unsaturated soil with methane oxidation. Effects of microbial oxidation-generated water and heat are included. The model is calibrated using published data from a laboratory soil column test. Moreover, a series of parametric studies are carried out to investigate the influence of microbial oxidation-generated water and heat, initial water content on methane oxidation efficiency. Computed and measured results of gas concentration and methane oxidation rate are consistent. It is found that the coupling effects between water-gas-heat transfer and methane oxidation are significant. Ignoring microbial oxidation-generated water and heat can result in a significant difference in methane oxidation efficiency by 100%.
Collapse
Affiliation(s)
- C W W Ng
- Department of Civil and Environmental Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong.
| | - S Feng
- Department of Civil and Environmental Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong.
| | - H W Liu
- Department of Civil and Environmental Engineering, The Hong Kong University of Science and Technology, Clear Water Bay, Kowloon, Hong Kong.
| |
Collapse
|
49
|
Cai CS, Chen GH, Sun AN, Qiao M, Liu HW, Chen F, Wang Y, Qiu HY, Han Y, Ma X, Tang XW, Jin ZM, Fu CC, Wu DP. [Correlation of the level of Reg3α protein in plasma with gastrointestinal acute graft-versus-host disease]. Zhongguo Shi Yan Xue Ye Xue Za Zhi 2014; 22:785-90. [PMID: 24989295 DOI: 10.7534/j.issn.1009-2137.2014.03.039] [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: 11/22/2022]
Abstract
This study was purposed to explore the correlation of regenerating Islet-derived 3-alpha(Reg3α) protein level in plasma with the diagnosis and prognosis of the gastrointestinal acute graft-versus-host disease (GI-aGVHD) after all-HSCT, 103 patients who underwent allogeneic hematopoietic stem cell transplantation (allo-HSCT) were observed in our hospital from December 2011 to December 2012. Peripheral blood samples were routinely collected at 9 d before allo-HSCT, 0 d, 14 d, 28 d after allo-HSCT as well as in aGVHD and at the 1 and 4 weeks after aGVHD therapy. The plasma concentrations of Reg3α were measured by using ELISA kit. The results indicated that among the 103 patients, 17 cases never developed aGVHD symptoms (no-aGVHD), 27 cases presented with non-aGVHD associated diarrhea, 10 cases presented with isolated skin aGVHD, 17 cases developed grades I-II GI-aGVHD, 32 cases with grades III-IV GI-aGVHD. The plasma concentrations of Reg3α in group of patients with GI-aGVHD and group of non-aGVHD diarrhea were 111.5 (54.7-180.2) and 23.9 (14.5-89.5) ng/ml respectively with significant difference (P < 0.001). The plasma concentrations of Reg3α in 17 patients of grades III-IV GI-aGVHD who experienced a complete or partial response and 7 patients who had no response to therapy at 4 weeks were 137.2(51.7-205.4) and 679.4(122.3-896.8) ng/ml respectively with the significant difference (P = 0.028). All of the patients who had no response to therapy died of aGVHD associated multiple organ failure. The area under the ROC curve was 0.902 when plasma concentration of Reg3α was set at 87.73 ng/ml. The sensitivity was 81.48% and the specificity was 82.86% when the critical value was used in diagnosis of grades III-IV GI-aGVHD. The probability of grades III-IV GI-aGVHD had statistical difference above and below 87.73 ng/ml after allo-HSCT (P < 0.001). It is concluded that the increase of plasma Reg3α level after transplantation suggests the incidence of grades III-IV GI-aGVHD. The high level of plasma Reg3α protein in patients with grades III-IV GI-aGVHD after the immunosuppressive treatment for four weeks indicates a poor prognosis. The plasma concentrations of Reg3α can be used as a specific biomarker of GI-aGVHD.
Collapse
Affiliation(s)
- Cheng-Sen Cai
- Department of Hematology, The First Affiliated Hospital of Soochow University, Suzhou 215006, Jiangsu Province, China
| | - Guang-Hua Chen
- Department of Hematology, The First Affiliated Hospital of Soochow University, Suzhou 215006, Jiangsu Province, China. E-mail:
| | - Ai-Ning Sun
- Department of Hematology, The First Affiliated Hospital of Soochow University, Suzhou 215006, Jiangsu Province, China. E-mail:
| | - Man Qiao
- Department of Hematology, The First Affiliated Hospital of Soochow University, Suzhou 215006, Jiangsu Province, China
| | - Hui-Wen Liu
- Department of Hematology, The First Affiliated Hospital of Soochow University, Suzhou 215006, Jiangsu Province, China
| | - Feng Chen
- Department of Hematology, The First Affiliated Hospital of Soochow University, Suzhou 215006, Jiangsu Province, China
| | - Ying Wang
- Department of Hematology, The First Affiliated Hospital of Soochow University, Suzhou 215006, Jiangsu Province, China
| | - Hui-Ying Qiu
- Department of Hematology, The First Affiliated Hospital of Soochow University, Suzhou 215006, Jiangsu Province, China
| | - Yue Han
- Department of Hematology, The First Affiliated Hospital of Soochow University, Suzhou 215006, Jiangsu Province, China
| | - Xiao Ma
- Department of Hematology, The First Affiliated Hospital of Soochow University, Suzhou 215006, Jiangsu Province, China
| | - Xiao-Wen Tang
- Department of Hematology, The First Affiliated Hospital of Soochow University, Suzhou 215006, Jiangsu Province, China
| | - Zheng-Ming Jin
- Department of Hematology, The First Affiliated Hospital of Soochow University, Suzhou 215006, Jiangsu Province, China
| | - Cheng-Cheng Fu
- Department of Hematology, The First Affiliated Hospital of Soochow University, Suzhou 215006, Jiangsu Province, China
| | - De-Pei Wu
- Department of Hematology, The First Affiliated Hospital of Soochow University, Suzhou 215006, Jiangsu Province, China
| |
Collapse
|
50
|
Conroy L, Liu HW, Lau H, Smith WL. Poster - Thur Eve - 65: A dosimetric comparison of isocentric and non-isocentric coplanar SBRT VMAT plans for peripheral lung tumours. Med Phys 2014. [DOI: 10.1118/1.4894925] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
|