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Wang DP, Zhang M, Li M, Yang XN, Li C, Cao P, Zhu MX, Tian Y, Yu Y, Lei YT. Druggable site near the upper vestibule determines the high affinity and P2X3 homotrimer selectivity of sivopixant/S-600918 and its analogue DDTPA. Br J Pharmacol 2024; 181:1203-1220. [PMID: 37921202 DOI: 10.1111/bph.16273] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2023] [Revised: 09/13/2023] [Accepted: 10/14/2023] [Indexed: 11/04/2023] Open
Abstract
BACKGROUND AND PURPOSE The P2X3 receptor, a trimeric ionotropic purinergic receptor, has emerged as a potential therapeutic target for refractory chronic cough (RCC). Nevertheless, gefapixant/AF-219, the only marketed P2X3 receptor antagonist, might lead taste disorders by modulating the human P2X2/3 (hP2X2/3) heterotrimer. Hence, in RCC drug development, compounds exhibiting strong affinity for the hP2X3 homotrimer and a weak affinity for the hP2X2/3 heterotrimer hold promise. An example of such a molecule is sivopixant/S-600918, a clinical Phase II RCC candidate with a reduced incidence of taste disturbance compared to gefapixant. Sivopixant and its analogue, (3-(4-([3-chloro-4-isopropoxyphenyl]amino)-3-(4-methylbenzyl)-2,6-dioxo-3,6-dihydro-1,3,5-triazin-1(2H)-yl)propanoic acid (DDTPA), exhibit both high affinity and high selectivity for hP2X3 homotrimers, compared with hP2X2/3 heterotrimers. The mechanism underlying the druggable site and its high selectivity remains unclear. EXPERIMENTAL APPROACH To analyse mechanisms that distinguish this drug candidate from other inhibitors of the P2X3 receptors we used a combination of chimera construction, site covalent occupation, metadynamics, mutagenesis and whole-cell recording. KEY RESULTS The high affinity and selectivity of sivopixant/DDTPA for hP2X3 receptors was determined by the tri-symmetric site located close to the upper vestibule. Substitution of only four amino acids inside the upper body domain of hP2X2 with those of hP2X3, enabled the hP2X2/3 heterotrimer to exhibit a similar level of apparent affinity for sivopixant/DDTPA as the hP2X3 homotrimer. CONCLUSION AND IMPLICATIONS From the receptor-ligand recognition perspective, we have elucidated the molecular basis of novel RCC clinical candidates' cough-suppressing properties and reduced side effects, offering a promising approach to the discovery of novel drugs that specifically target P2X3 receptors.
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Affiliation(s)
- Dong-Ping Wang
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, China
- School of Sciences and State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China
| | - Meng Zhang
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, China
- School of Sciences and State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China
| | - Ming Li
- School of Sciences and State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China
| | - Xiao-Na Yang
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, China
- School of Sciences and State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China
| | - Changzhu Li
- State Key Laboratory of Utilization of Woody Oil Resource, Hunan Academy of Forestry, Changsha, China
| | - Peng Cao
- Hospital of Integrated Traditional Chinese and Western Medicine, Nanjing University of Chinese Medicine, Nanjing, China
| | - Michael X Zhu
- Department of Integrative Biology and Pharmacology, McGovern Medical School, The University of Texas Health Science Center at Houston, Houston, Texas, USA
| | - Yun Tian
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha, China
| | - Ye Yu
- School of Sciences and State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China
| | - Yun-Tao Lei
- School of Sciences and State Key Laboratory of Natural Medicines, China Pharmaceutical University, Nanjing, China
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Li H, Deng W, Yang J, Lin Y, Zhang S, Liang Z, Chen J, Hu M, Liu T, Mo G, Zhang Z, Wang D, Gu P, Tang Y, Yuan K, Xu L, Xu J, Zhang S, Li Y. Corylifol A suppresses osteoclastogenesis and alleviates ovariectomy-induced bone loss via attenuating ROS production and impairing mitochondrial function. Biomed Pharmacother 2024; 171:116166. [PMID: 38244329 DOI: 10.1016/j.biopha.2024.116166] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/30/2023] [Revised: 01/11/2024] [Accepted: 01/11/2024] [Indexed: 01/22/2024] Open
Abstract
Osteoporosis is a systemic disease characterized by an imbalance in bone homeostasis, where osteoblasts fail to fully compensate for the bone resorption induced by osteoclasts. Corylifol A, a flavonoid extracted from Fructus psoraleae, has been identified as a potential treatment for this condition. Predictions from network pharmacology and molecular docking studies suggest that Corylifol A exhibits strong binding affinity with NFATc1, Nrf2, PI3K, and AKT1. Empirical evidence from in vivo experiments indicates that Corylifol A significantly mitigates systemic bone loss induced by ovariectomy by suppressing both the generation and activation of osteoclasts. In vitro studies further showed that Corylifol A inhibited the activation of PI3K-AKT and MAPK pathways and calcium channels induced by RANKL in a time gradient manner, and specifically inhibited the phosphorylation of PI3K, AKT, GSK3 β, ERK, CaMKII, CaMKIV, and Calmodulin. It also diminishes ROS production through Nrf2 activation, leading to a decrease in the expression of key regulators such as NFATcl, C-Fos, Acp5, Mmp9, and CTSK that are involved in osteoclastogenesis. Notably, our RNA-seq analysis suggests that Corylifol A primarily impacts mitochondrial energy metabolism by suppressing oxidative phosphorylation. Collectively, these findings demonstrate that Corylifol A is a novel inhibitor of osteoclastogenesis, offering potential therapeutic applications for diseases associated with excessive bone resorption.
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Affiliation(s)
- HaiShan Li
- The First Clinical Academy, Guangzhou University of Chinese Medicine, Guangzhou, China; Lingnan Medical Research Center of Guangzhou University of Chinese Medicine, Guangzhou, China; The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Wei Deng
- The First Clinical Academy, Guangzhou University of Chinese Medicine, Guangzhou, China; Lingnan Medical Research Center of Guangzhou University of Chinese Medicine, Guangzhou, China; The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - JiaMin Yang
- The First Clinical Academy, Guangzhou University of Chinese Medicine, Guangzhou, China; Lingnan Medical Research Center of Guangzhou University of Chinese Medicine, Guangzhou, China; The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - YueWei Lin
- The First Clinical Academy, Guangzhou University of Chinese Medicine, Guangzhou, China; Lingnan Medical Research Center of Guangzhou University of Chinese Medicine, Guangzhou, China; The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - ShiYin Zhang
- The First Clinical Academy, Guangzhou University of Chinese Medicine, Guangzhou, China; Lingnan Medical Research Center of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - ZiXuan Liang
- The First Clinical Academy, Guangzhou University of Chinese Medicine, Guangzhou, China; Lingnan Medical Research Center of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - JunChun Chen
- School of Biomedical Sciences, University of Western Australia, Perth, Western Australia, Australia; ShenZhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China
| | - MinHua Hu
- The First Clinical Academy, Guangzhou University of Chinese Medicine, Guangzhou, China; Lingnan Medical Research Center of Guangzhou University of Chinese Medicine, Guangzhou, China; The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Teng Liu
- The First Clinical Academy, Guangzhou University of Chinese Medicine, Guangzhou, China; Lingnan Medical Research Center of Guangzhou University of Chinese Medicine, Guangzhou, China; The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - GuoYe Mo
- The First Clinical Academy, Guangzhou University of Chinese Medicine, Guangzhou, China; The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Zhen Zhang
- The First Clinical Academy, Guangzhou University of Chinese Medicine, Guangzhou, China; Lingnan Medical Research Center of Guangzhou University of Chinese Medicine, Guangzhou, China; The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - DongPing Wang
- The First Clinical Academy, Guangzhou University of Chinese Medicine, Guangzhou, China; Lingnan Medical Research Center of Guangzhou University of Chinese Medicine, Guangzhou, China; The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Peng Gu
- The First Clinical Academy, Guangzhou University of Chinese Medicine, Guangzhou, China; Lingnan Medical Research Center of Guangzhou University of Chinese Medicine, Guangzhou, China; The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - YongChao Tang
- The First Clinical Academy, Guangzhou University of Chinese Medicine, Guangzhou, China; The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - Kai Yuan
- The First Clinical Academy, Guangzhou University of Chinese Medicine, Guangzhou, China; The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - LiangLiang Xu
- The First Clinical Academy, Guangzhou University of Chinese Medicine, Guangzhou, China; The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China
| | - JiaKe Xu
- School of Biomedical Sciences, University of Western Australia, Perth, Western Australia, Australia; ShenZhen Institute of Advanced Technology, Chinese Academy of Sciences, Shenzhen, China.
| | - ShunCong Zhang
- The First Clinical Academy, Guangzhou University of Chinese Medicine, Guangzhou, China; The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China.
| | - YongXian Li
- The First Clinical Academy, Guangzhou University of Chinese Medicine, Guangzhou, China; The First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou, China.
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Feng WW, Bai Y, Wang DP, Fan FY, Sun YQ. [Study on the Mechanism of Multi-Drug Resistance of Agaricus Blazei Extract FA-2-b-β Mediated Wnt Signaling Pathway to Reverse Acute T Lymphoblastic Leukemia]. Zhongguo Shi Yan Xue Ye Xue Za Zhi 2023; 31:621-627. [PMID: 37356917 DOI: 10.19746/j.cnki.issn.1009-2137.2023.03.001] [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: 06/27/2023]
Abstract
OBJECTIVE To investigate the mechanism of drug reversing resistance of Agaricus blazei extract FA-2-b-β on T cell acute lymphoblastic leukemia (T-ALL) cell lines. METHODS Cell proliferation was detected by CCK-8 assay; the apoptosis, cell cycle mitochondrial membrane potential, and intracellular rhodamine accumulation were detected by flow cytometry, and apoptosis-related gene and protein expression were detected by qPCR and Western blot; the membrane surface protein MDR1 was observed by immunofluorescence microscopy. RESULTS Different concentrations of FA-2-b-β significantly inhibited proliferation and induced apoptosis of CCRF-CEM and CEM/C1 (P<0.05), and CCRF-CEM cell cycle were arrested at S phase, and CEM/C1 cells were arrested at G0/G1 phase. Western blot and qPCR results show that FA-2-b-β inhibited ABCB1、ABCG2、CTNNB、MYC and BCL-2 expression, but upregulated Bax expression. In addition, FA-2-b-β reversed the resistance characteristics of CEM/C1 drug-resistance cells, which decreased mitochondrial membrane potential, and significantly increased the intracellular rhodamine accumulation, and weakening of the expression of the membrane surface protein MDR1. With the Wnt/β-catenin inhibitor (ICG001), the process was further intensified. CONCLUSION Agaricus Blazei Extract FA-2-b-β inhibits cell proliferation, promotes apoptosis, regulates the cell cycle, reduces mitochondrial energy supply, and down-regulate MDR1 expression to reverse the resistance of CEM/C1, which all suggest it is through regulating the Wnt signaling pathway in T-ALL.
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Affiliation(s)
- Wen-Wen Feng
- The First Clinical Medical College of Gansu University of Traditional Chinese Medicine; Lanzhou 730000, Gansu Province, China
| | - Yu Bai
- The First Clinical Medical College of Gansu University of Traditional Chinese Medicine; Lanzhou 730000, Gansu Province, China
| | - Dong-Ping Wang
- The First Clinical Medical College of Gansu University of Traditional Chinese Medicine; Lanzhou 730000, Gansu Province, China
| | - Fu-Yan Fan
- The First Clinical Medical College of Gansu University of Traditional Chinese Medicine; Lanzhou 730000, Gansu Province, China
| | - Yan-Qing Sun
- The First Clinical Medical College of Gansu University of Traditional Chinese Medicine; Lanzhou 730000, Gansu Province, China,Department of Hematology, Gansu Provincial People's Hospital, Lanzhou 730000, Gansu Province, China,E-mail:
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Wang DP, Wu LH, Li R, He N, Zhang QY, Zhao CY, Jiang T. A Novel Aldisine Derivative Exhibits Potential Antitumor Effects by Targeting JAK/STAT3 Signaling. Mar Drugs 2023; 21:md21040218. [PMID: 37103357 PMCID: PMC10141377 DOI: 10.3390/md21040218] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/26/2023] [Revised: 03/24/2023] [Accepted: 03/27/2023] [Indexed: 04/03/2023] Open
Abstract
The JAK/STAT3 signaling pathway is aberrantly hyperactivated in many cancers, promoting cell proliferation, survival, invasiveness, and metastasis. Thus, inhibitors targeting JAK/STAT3 have enormous potential for cancer treatment. Herein, we modified aldisine derivatives by introducing the isothiouronium group, which can improve the antitumor activity of the compounds. We performed a high-throughput screen of 3157 compounds and identified compounds 11a, 11b, and 11c, which contain a pyrrole [2,3-c] azepine structure linked to an isothiouronium group through different lengths of carbon alkyl chains and significantly inhibited JAK/STAT3 activities. Further results showed that compound 11c exhibited the optimal antiproliferative activity and was a pan-JAKs inhibitor capable of inhibiting constitutive and IL-6-induced STAT3 activation. In addition, compound 11c influenced STAT3 downstream gene expression (Bcl-xl, C-Myc, and Cyclin D1) and induced the apoptosis of A549 and DU145 cells in a dose-dependent manner. The antitumor effects of 11c were further demonstrated in an in vivo subcutaneous tumor xenograft experiment with DU145 cells. Taken together, we designed and synthesized a novel small molecule JAKs inhibitor targeting the JAK/STAT3 signaling pathway, which has predicted therapeutic potential for JAK/STAT3 overactivated cancer treatment.
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Affiliation(s)
- Dong-Ping Wang
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
- Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China
| | - Li-Hong Wu
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
- Innovation Platform of Marine Drug Screening & Evaluation, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266100, China
| | - Rui Li
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
- Innovation Platform of Marine Drug Screening & Evaluation, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266100, China
| | - Na He
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
- Innovation Platform of Marine Drug Screening & Evaluation, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266100, China
| | - Qian-Yue Zhang
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
- Innovation Platform of Marine Drug Screening & Evaluation, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266100, China
| | - Chen-Yang Zhao
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
- Department of Cancer Biology, Cleveland Clinic, 9500 Euclid Ave, Cleveland, OH 44195, USA
- Correspondence: (C.-Y.Z.); (T.J.)
| | - Tao Jiang
- Key Laboratory of Marine Drugs, Ministry of Education, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
- Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China
- Correspondence: (C.-Y.Z.); (T.J.)
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Yu LS, Wan F, Fan HY, Kang GL, Liu H, Wang DP, Xu J. [Spatial Distribution, Source Apportionment, and Ecological Risk Assessment of Soil Heavy Metals in Jianghugongmi Producing Area, Shandong Province]. Huan Jing Ke Xue 2022; 43:4199-4211. [PMID: 35971717 DOI: 10.13227/j.hjkx.202112133] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Abstract
Taking the Jianghugongmi producing area as the research object, As, Cd, Cr, Cu, Hg, Ni, Pb, and Zn in the soil of the study area were sampled and determined. The correlation of heavy metals was discussed using the multivariate statistical method, the spatial distribution interpolation analysis of heavy metals was carried out using ArcGIS 10.2, the quantitative source analysis of heavy metal pollution was carried out using the enrichment factor (EF) and PMF methods, and the potential ecological risk was evaluated. The results showed that the contents of the soil heavy metals As, Cd, Cu, Hg, Pb, and Zn were lower than the screening values specified in the standard for soil pollution risk control of agricultural land (GB 15618-2018), and the soil ecological environment risk was low; the maximum values of Cr and Ni exceeded the risk screening values, but the risk was low. The main distribution range of pH in the study area was 6.05-6.69, which was suitable for rice growth. The Mohe River indicated the spatial distribution of pH and heavy metals, which was closely related to the supergene geochemical characteristics of the elements. However, Hg and Cd showed different spatial distribution characteristics under human influence. Hg was distributed in the middle and high value distribution area along the west side of the river, and the spatial distribution of Cd was significantly different from north to south. The quantitative source analysis results based on the EF method and PMF showed that the main sources of heavy metals in the study area were agricultural sources, mixed sources, coal sources, and natural sources. The contribution rates of various sources accounted for 24.2%, 35.4%, 9.5%, and 30.9%, respectively. The medium strong ecological risk points of Hg in the study area were distributed along the west side of the Mohe River, whereas the moderate potential ecological risk points of Cd were concentrated in the cultivated land on both sides of the Mohe River, and the potential ecological risk index (Er) of the other elements was<40. Cd and Hg were the main potential ecological risk elements in the study area, whereas Cd was still the main potential pollution element in the cultivated land soil in the study area.
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Affiliation(s)
- Lin-Song Yu
- Shandong Institute of Geophysical and Geochemical Exploration, Ji'nan 250013, China.,Shandong Provincial Engineering Laboratory for Soil Geochemistry, Ji'nan 250013, China.,Shandong Provincial Engineering Research Center for Geological Prospecting, Ji'nan 250013, China.,College of Earth Sciences, Chengdu University of Technology, Chengdu 610059, China
| | - Fang Wan
- Shandong Institute of Geophysical and Geochemical Exploration, Ji'nan 250013, China.,Shandong Provincial Engineering Laboratory for Soil Geochemistry, Ji'nan 250013, China.,Shandong Provincial Engineering Research Center for Geological Prospecting, Ji'nan 250013, China
| | - Hai-Yin Fan
- Shandong Institute of Geophysical and Geochemical Exploration, Ji'nan 250013, China.,Shandong Provincial Engineering Laboratory for Soil Geochemistry, Ji'nan 250013, China
| | - Gui-Ling Kang
- Shandong Institute of Geophysical and Geochemical Exploration, Ji'nan 250013, China.,Shandong Provincial Engineering Laboratory for Soil Geochemistry, Ji'nan 250013, China
| | - Hui Liu
- Shandong Institute of Geophysical and Geochemical Exploration, Ji'nan 250013, China.,Shandong Provincial Engineering Laboratory for Soil Geochemistry, Ji'nan 250013, China
| | - Dong-Ping Wang
- Shandong Institute of Geophysical and Geochemical Exploration, Ji'nan 250013, China.,Shandong Provincial Engineering Laboratory for Soil Geochemistry, Ji'nan 250013, China
| | - Jia Xu
- Shandong Institute of Geophysical and Geochemical Exploration, Ji'nan 250013, China.,Shandong Provincial Engineering Laboratory for Soil Geochemistry, Ji'nan 250013, China
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Luo T, He SJ, Chen SR, Wang TL, Huang CJ, Wang DP, Ju WQ, Zhao Q, Chen MG, Chen YH, Hu AB, Ma Y, Wang GD, Zhu XF, Huang SW, Guo ZY, He XS. Prediction of post-transplant graft survival by different definitions of early allograft dysfunction. Ann Palliat Med 2021; 10:8584-8595. [PMID: 34379984 DOI: 10.21037/apm-21-1012] [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: 04/24/2021] [Accepted: 07/07/2021] [Indexed: 11/06/2022]
Abstract
BACKGROUND The efficacy of early allograft dysfunction (EAD) definitions in predicting post-transplant graft survival in a Chinese population is still unclear. METHODS A total of 607 orthotopic liver transplants (OLT) have been included in the current study. Model accuracy was evaluated using receiver operating characteristic (ROC) analysis. Risk factors for EAD was evaluated using univariable analysis and multivariable logistic regression model. RESULTS The 3-, 6-, and 12-month patient/graft survival were 91.6%/91.4%, 91.1%/90%, and 87.5%/87.3%, respectively. MELDPOD5 had a superior discrimination of 3-month graft survival (C statistic, 0.83), compared with MEAF (C statistic, 0.77) and Olthoff criteria (C statistic, 0.72). Multivariate analysis of risk factors for EAD defined by MELDPOD5, showed that donor body mass index (P=0.001), donor risk index (P=0.006), intraoperative use of packed red blood cells (P=0.001), hypertension of recipient (P=0.004), and preoperative total bilirubin (P<0.001) were independent risk factors. CONCLUSIONS The results suggest that MLEDPOD5 is a better criterion of EAD for the Chinese population, which might serve as a surrogate end-point for graft survival in clinical study.
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Affiliation(s)
- Tao Luo
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China; Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, Guangzhou, China; Guangdong Provincial International Cooperation Base of Science and Technology, Guangzhou, China
| | - Shu-Jiao He
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China; Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, Guangzhou, China; Guangdong Provincial International Cooperation Base of Science and Technology, Guangzhou, China
| | - Shi-Rui Chen
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China; Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, Guangzhou, China; Guangdong Provincial International Cooperation Base of Science and Technology, Guangzhou, China
| | - Tie-Long Wang
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China; Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, Guangzhou, China; Guangdong Provincial International Cooperation Base of Science and Technology, Guangzhou, China
| | - Chang-Jun Huang
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China; Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, Guangzhou, China; Guangdong Provincial International Cooperation Base of Science and Technology, Guangzhou, China
| | - Dong-Ping Wang
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China; Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, Guangzhou, China; Guangdong Provincial International Cooperation Base of Science and Technology, Guangzhou, China
| | - Wei-Qiang Ju
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China; Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, Guangzhou, China; Guangdong Provincial International Cooperation Base of Science and Technology, Guangzhou, China
| | - Qiang Zhao
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China; Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, Guangzhou, China; Guangdong Provincial International Cooperation Base of Science and Technology, Guangzhou, China
| | - Mao-Gen Chen
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China; Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, Guangzhou, China; Guangdong Provincial International Cooperation Base of Science and Technology, Guangzhou, China
| | - Ying-Hua Chen
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China; Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, Guangzhou, China; Guangdong Provincial International Cooperation Base of Science and Technology, Guangzhou, China
| | - An-Bin Hu
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China; Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, Guangzhou, China; Guangdong Provincial International Cooperation Base of Science and Technology, Guangzhou, China
| | - Yi Ma
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China; Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, Guangzhou, China; Guangdong Provincial International Cooperation Base of Science and Technology, Guangzhou, China
| | - Guo-Dong Wang
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China; Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, Guangzhou, China; Guangdong Provincial International Cooperation Base of Science and Technology, Guangzhou, China
| | - Xiao-Feng Zhu
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China; Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, Guangzhou, China; Guangdong Provincial International Cooperation Base of Science and Technology, Guangzhou, China
| | - Shun-Wei Huang
- Department of Critical Care Medicine, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - Zhi-Yong Guo
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China; Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, Guangzhou, China; Guangdong Provincial International Cooperation Base of Science and Technology, Guangzhou, China
| | - Xiao-Shun He
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China; Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, Guangzhou, China; Guangdong Provincial International Cooperation Base of Science and Technology, Guangzhou, China
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Tang WY, Wang DP, Tian Y, Fan X, Wang C, Lu XY, Li PW, Ji XJ, Liu HH. Metabolic engineering of Yarrowia lipolytica for improving squalene production. Bioresour Technol 2021; 323:124652. [PMID: 33421835 DOI: 10.1016/j.biortech.2020.124652] [Citation(s) in RCA: 44] [Impact Index Per Article: 14.7] [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: 11/20/2020] [Revised: 12/28/2020] [Accepted: 12/29/2020] [Indexed: 06/12/2023]
Abstract
The aim of this present research is to enhance the squalene production in Yarrowia lipolytica using pathway engineering and bioprocess engineering. Firstly, to improve the production of squalene, the endogenous HMG-CoA reductase (HMG1) was overexpressed in Y. lipolytica to yield 208.88 mg/L squalene. Secondly, the HMG1 and diacylglycerol acyltranferase (DGA1) were co-overexpressed, the derived recombinant Y. lipolytica SQ-1 strain produced 439.14 mg/L of squalene. Thirdly, by optimizing the fermentation medium, the improved titer of squalene with 514.34 mg/L was obtained by the engineered strain SQ-1 grown on YPD-80 medium. Finally, by optimizing the addition concentrations of acetate, citrate and terbinafine, the 731.18 mg/L squalene was produced in the engineered strain SQ-1 with the addition of 0.5 mg/L terbinafine. This work describes the highest reported squalene titer in Y. lipolytica to date. This study will provide the foundation for further engineering Y. lipolytica capable of cost-efficiently producing squalene.
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Affiliation(s)
- Wen-Yan Tang
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China
| | - Dong-Ping Wang
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China
| | - Yun Tian
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China; State Key Laboratory of Utilization of Woody Oil Resource, Hunan Academy of Forestry, Changsha 410004, China
| | - Xiao Fan
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China
| | - Chong Wang
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China
| | - Xiang-Yang Lu
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China
| | - Pei-Wang Li
- State Key Laboratory of Utilization of Woody Oil Resource, Hunan Academy of Forestry, Changsha 410004, China
| | - Xiao-Jun Ji
- College of Biotechnology and Pharmaceutical Engineering, Nanjing Tech University, Nanjing 211816, Jiangsu, China
| | - Hu-Hu Liu
- College of Bioscience and Biotechnology, Hunan Agricultural University, Changsha 410128, China.
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8
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Wang DP, Cai DY, Yang XL, Lu X, Lin DF, Li PM, Zhang ZM, Zhang YF, Zhang W. [Study of methylation of mitochondrial MT-COI of benzene poisoning]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2020; 38:664-668. [PMID: 33036528 DOI: 10.3760/cma.j.cn121094-20200409-00174] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To research the mitochondrial cytochrome c oxidase subunit I (MT-COI) gene methylation levels in patients with occupational chronic benzene poisoning, and to explore effective molec μlar biomarkers in patients with occupational chronic benzene poisoning. Methods: 38 confirmed cases of occupational chronic benzene poisoning were selected in the case group. 46 healthy people who underwent physical in our hospital were selected in the control group. Pyrosequencing was used to detect the methylation sites of methylation sites, flow cytometry was used to detect peripheral blood cell count levels, and non-parametric statistical methods were used to analyze the differences in detection results between the two groups. Results: The methylation level of mitochondrial MT-COI site 1 (2.21±0.81) % in the case group was less than that in the control group, and the difference was statistically significant (P<0.05) . The methylation level of mitochondrial MT-COI site 2 (2.31±0.96%) in the case group was less than that in the control group, and the difference was statistically significant (P<0.05) . The methylation average level of mitochondrial MT-COI (2.26±0.75) % in the case group was less than that in the control group, and the difference was statistically significant (P<0.05) . Analysis of the average level of methylation found that the methylation level of mitochondrial MT-COI was correlated with WBC (P<0.05) . Analysis of the average level of methylation found that the methylation level of mitochondrial MT-COI was correlated with platelets (r=0.254、0.280, P<0.05) . Conclusion: The level of mitochondrial MT-COI gene methylation in patients with occupational chronic benzene poisoning may be related to the sensitivity to benzene exposure. Mitochondrial MT-COI gene methylation may serve as a potential predictive biomarker for benzene poisoning.
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Affiliation(s)
- D P Wang
- Shenzhen Prevention and Treatment Center for Occupational Diseases, Shenzhen 518001, China
| | - D Y Cai
- Hebei North University, Hebei 075000, China
| | - X L Yang
- Shenzhen Prevention and Treatment Center for Occupational Diseases, Shenzhen 518001, China
| | - X Lu
- Hebei North University, Hebei 075000, China
| | - D F Lin
- Shenzhen Prevention and Treatment Center for Occupational Diseases, Shenzhen 518001, China
| | - P M Li
- Shenzhen Prevention and Treatment Center for Occupational Diseases, Shenzhen 518001, China
| | - Z M Zhang
- Shenzhen Prevention and Treatment Center for Occupational Diseases, Shenzhen 518001, China
| | - Y F Zhang
- Shenzhen Prevention and Treatment Center for Occupational Diseases, Shenzhen 518001, China
| | - W Zhang
- Shenzhen Prevention and Treatment Center for Occupational Diseases, Shenzhen 518001, China
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9
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Lin DF, Yang YH, Wang DP, Li PM, Zhang ZM, Zhang YF, Huang XQ. [Detection of HLA-B*13:01 gene by dual allele-specific real-time polymerase chain reaction in patients with trichlorethylene-induced dermatitis]. Zhonghua Lao Dong Wei Sheng Zhi Ye Bing Za Zhi 2018; 35:589-591. [PMID: 29081127 DOI: 10.3760/cma.j.issn.1001-9391.2017.08.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the detection of a human leukocyte antigen-B (HLA-B) allele HLA-B*13:01 by dual allele-specific real-time polymerase chain reaction (PCR) in patients with trichlorethylene-induced dermatitis. Methods: A total of 20 patients with trichlorethylene-induced dermatitis who were admitted and treated from January 2014 to October 2016 were enrolled as case group, and 20 persons who underwent physical examination from January to October, 2016 were enrolled as control group. Peripheral cubital venous blood samples were collected from all subjects, and dual allele-specific real-time PCR was used to detect the HLA-B*13:01 gene. The two groups were compared in terms of the proportion of subjects carrying HLA-B*13:01 gene. Results: There were no significant differences between the case group and the control group in median age (25.0 years vs 27.0 years, Z=0.30, P>0.05) and the proportion of male subjects (60.0% vs 70.0%, χ(2)=0.44, P>0.05) . The mean time of exposure to trichloroethylene was 30.8 days in the case group, while the subjects in the control group were not exposed to trichloroethylene. The case group had a significantly higher frequency of HLA-B*13:01 gene than the control group (80.0% vs 20.0%, χ(2)=14.40, P<0.01) with an odds ratio of 16.00. Conclusion: Dual allele-specific real-time PCR can be used for detection of the HLA-B*13:01 gene in patients with trichlorethylene-induced dermatitis.
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Affiliation(s)
- D F Lin
- Shenzhen Prevention and Treatment Center for Occupational Diseases, Shenzhen 518020, China
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10
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Fan LL, Chen X, Zou ZL, Wang DP, Zhang AH. [Effects of sodium arsenite exposure on activation and extracellular matrix secretion of human hepatic stellate cells]. Zhonghua Yu Fang Yi Xue Za Zhi 2018; 52:983-987. [PMID: 30392314 DOI: 10.3760/cma.j.issn.0253-9624.2018.10.004] [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 explore the effects of sodium arsenite (NaAsO(2)) exposure on the activation and extracellular matrix secretion of human hepatic stellate cells, and to provide a theoretical basis for the mechanism study of arsenic induced hepatic fibrosis. Methods: Different doses of NaAsO(2) (0.0, 0.1, 1.0, 10.0, 50.0, 100.0 μmol/L) were exposed to human hepatic stellate cell line (Lx-2) for 24, 48 and 72 huors. CCK-8 assay was used to measure cell viability and IC(50) of NaAsO(2) on Lx-2 was then calculated; According to IC(50) results, 0.000, 1.875, 3.750, 7.500, and 15.000 μmol/L of NaAsO(2) were exposed to Lx-2 cells for 24 hours, besides, 7.500 μmol/L of NaAsO(2) was exposed to Lx-2 cells for 0, 12, 24, 48, and 72 hours, then collected cells and culture supernatant; HSC activation-related protein, including α-smooth muscle actin (α-SMA), and transforming growth factor-β1 (TGF-β1) expression levels were detected by Western blot analysis, the main extracellular matrix including laminin (LN) , hyaluronic acid (HA), collagen Ⅳ (COL-Ⅳ) and procollagen Ⅲ(P Ⅲ NP) secretion level was detected by Elisa assay. Results: CCK-8 assay showed that the cell viability of Lx-2 cells were increased obviously at low doses (≤1.0 μmol/L) of arsenic exposure, especially at 48 and 72 h. In contrast, with the increasing doses of arsenic exposure, the survival rate of Lx-2 cell was decreased gradually, and the survival rate of the high-dose (50, 100 μmol/L) arsenic exposure group at 24, 48 and 72 h were significantly lower than 0.0 μmol/L group, P<0.05. The IC(50) of NaAsO(2) on Lx-2 cells at 24, 48, 72 h were calculated as 72.75, 48.19 and 29.95 μmol/L, respectively; The expression levels of HSC activation-related protein showed that, after treated with 1.875, 3.750, 7.500, 15.000 μmol/L NaAsO(2) for 24 h, α-SMA and TGF-β1 protein level were higher than 0.000 μmol/L group. The increased expression of α-SMA and TGF-β1 protein were most significant in 7.500 μmol/L NaAsO(2) group (P<0.05). In addition, the expression levels of α-SMA and TGF-β1 also showed a time-dependent increasing in Lx-2 cells after treated with 7.500 μmol/L NaAsO(2) for 0, 12, 24, 48 and 72 h; Elisa assay showed that after treated with 1.875, 3.750, 7.500, 15.000 μmol/L NaAsO(2) for 24 h, the secretion levels of HA, LN, COL-Ⅳ and PⅢNP were obvious higher than 0.000 μmol/L group (P<0.05). Moreover, the secretion levels of HA, LN, COL-Ⅳ and P Ⅲ NP also showed a time-dependent increased manner in Lx-2 cells after exposed to 7.500 μmol/L NaAsO(2) for 0, 12, 24, 48 and 72 h (P<0.05). Conclusion: NaAsO(2) exposure to Lx-2 cells can upregulate the expression level of HSC activation-related proteins, induce its further activation, then increase ECM secretion level.
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Affiliation(s)
- L L Fan
- Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Department of Toxicology, Guizhou Medical University, Guiyang 550025, China
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Zhang AH, Wang DP. [Enhancing risk assessment of environmental arsenic pollution on human health]. Zhonghua Yu Fang Yi Xue Za Zhi 2018; 52:969-972. [PMID: 30392311 DOI: 10.3760/cma.j.issn.0253-9624.2018.10.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Affiliation(s)
- A H Zhang
- Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education/Department of Toxicology, Guizhou Medical University, Guiyang 550025, China
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12
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Dai XY, Chen C, Wang DP, Zhang AH, Liu QZ. [Hypoxia-inducible factor-1α is involved in arsenite-induced epithelial-mesenchymal transition and malignant transformation of human liver epithelial cells via regulating Snail]. Zhonghua Yu Fang Yi Xue Za Zhi 2018; 52:988-993. [PMID: 30392315 DOI: 10.3760/cma.j.issn.0253-9624.2018.10.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the role of hypoxia-inducible factor-1α (HIF-1α) in arsenite-induced epithelial-mesenchymal transition (EMT) and malignant transformation of human liver epithelial cells (L-02 cells). Methods: After the L-02 cells were chronic treated with 2.0 μmol/L NaAsO(2) for 0 (reference), 10, 20, or 30 passages, con siRNA or HIF-1α siRNA was transfected into arsenite-transformed L-02 (T-L-02) cells by lipofectamine(TM)2000 and were set as T-L-02+con siRNA group and T-L-02+HIF-1α siRNA group as well as L-02 group and T-L-02 group, EMT index and levels of HIF-1α were detected by western blots. The reporter assays were performed to determine if HIF-1α directly regulate Snail transcriptional activity, and soft agar colony formation and Transwell assay were used to detect the malignancy, invasion, and migration ability of cells. Results: When L-02 cells were treated for 10 generations with 2 μmol/L NaAsO(2), relative expressions of E-cadherin were gradually increased compared to control cells, while the levels of N-cadherin, Snail, and HIF-1α were gradually increased in the L-02 cells compared to control cells, showing the longer the treatment time was, the more obvious the change was (P<0.05) . Down regulating the level of HIF-1α by siNRA caused E-cadherin levels to rise compared to T-L-02 group, while the levels of N-cadherin and Snail fall back compared to T-L-02 group (P<0.05) . Double luciferase reporter gene assays showed that HIF-1α directly targeted Snail to regulate its expression. Soft agar colony formation and Transwell assays showed that the numbers of formed colonies, invasion cells, and metastasis cells of cells in T-L-02 group were all lower than those in L-02 group (P<0.05) . Conclusion: HIF-1α is involved in arsenite-induced EMT and malignant transformation of human liver epithelial cells via regulating Snail.
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Affiliation(s)
- X Y Dai
- The Key Laboratory of Modern Toxicology, Ministry of Education, School of Public Health, Nanjing Medical University, Nanjing 211166, China
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13
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Wang DP, Gu LL, Xue Q, Chen H, Mao GX. CtBP2 promotes proliferation and reduces drug sensitivity in non-small cell lung cancer via the Wnt/β-catenin pathway. Neoplasma 2018; 65:888-897. [PMID: 30334447 DOI: 10.4149/neo_2018_171220n828] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/20/2017] [Accepted: 03/21/2018] [Indexed: 11/08/2022]
Abstract
The C-terminal binding protein 2 (CtBP2) is crucial for the activation of the Wnt/β-catenin pathway and regulates significant cellular processes in multiple cancer cells. However, the role of CtBP2 in non-small cell lung cancer (NSCLC) remains uncertain. Our western blotting and immunohistochemistry assays revealed that CtBP2 expression was obviously increased in NSCLC tissues and cells. In addition, the chi-square test and Kaplan-Meier analysis showed that over-expression of CtBP2 correlates with more invasive tumor phenotype and poor prognosis. In vitro studies with serum starvation-refeeding and CtBP2-shRNA transfection assay demonstrated that CtBP2 expression facilitates NSCLC cell proliferation and reduces sensitivity to cis-diamminedichloroplatinum (CDDP). The possible signaling transduction pathways were investigated, and the immunoprecipitation assay revealed that CtBP2 interacts directly with DvL1. Depletion of CtBP2 resulted in inhibited DvL1 expression and decreased expression of downstream genes. Moreover, our study showed that CtBP2 knockdown enhanced NSCLC cell sensitivity to CDDP through inhibition of the Wnt/β-catenin pathway. These results suggest that CtBP2 plays a crucial role in NSCLC progression and CDDP sensitivity, and that CtBP2 depletion can provide a new target for NSCLC treatment.
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Affiliation(s)
- D P Wang
- Department of Oncology, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
| | - L L Gu
- Department of Oncology, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
| | - Q Xue
- Department of Thoracic Surgery, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
| | - H Chen
- Department of Oncology, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
| | - G X Mao
- Department of Oncology, Affiliated Hospital of Nantong University, Nantong, Jiangsu, China
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14
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He HZ, Zhang T, Zhou J, Wang DP, Wang HJ, Song Y, Zhu Z, Wang PY, Liu AP. [Relationship between sugary drinks and diabetes of adults in Wuhai city]. Beijing Da Xue Xue Bao Yi Xue Ban 2018; 50:469-473. [PMID: 29930415] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
OBJECTIVE To explore the relationship between sugary drinks and diabetes of adults in Wuhai city. METHODS A multiple stage stratified cluster sampling was conducted on 8 131 residents who were between 35 and 79 years by cross-sectional study in Wuhai city. Questionnaires, physical measurements and laboratory tests were used to collect information on demographic information, dietary behavior, health status, blood glucose indicators. Besides, other covariate information was also collected by these ways. The analysis was carried out by chi-square test, trend chi-square test and multifactor Logistic regression. RESULTS The detection rates of impaired fasting glucose and diabetes of people who were 35 years old and above in Wuhai city were 6.0% and 18.4%, respectively, and they both increased with age (P<0.01, P< 0.01). The detection rates of impaired fasting glucose and diabetes of the men were both far higher than the women (P< 0.01, P< 0.01). For the men, the detection rate of diabetes increased with age (Ptrend<0.01), but for the women, and the detection rate of impaired fasting glucose and diabetes both increased with age (Ptrend<0.01, Ptrend<0.01). The consumption rate of sugary drinks of the people who were 35 years old and above in Wuhai city was 30.2%. And after all the subjects were classified into three groups, A (0- mL/d), B (16- mL/d), and C (237- mL/d) according to the daily different drinking quantities, statistical results found that group A accounted for 75.4%, group B for 21.5%, and group C for 3.1%. In group A, for comparison, the impaired fasting glucose OR values of group B and group C were 1.4 and 2.2, respectively. And diabetes OR values of group B and group C were 1.2 and 2.1 respectively compared with group A, and the trend of OR values increased both had statistical significance (Ptrend <0.01, Ptrend < 0.01). Also, after adjusting for other covariates in multifactor Logistic regression, the OR values of impaired fasting glucose in group B and group C were 1.6 and 3.8 respectively, and the OR values of diabetes were 1.9 and 4.9 respectively, compared with group A, and besides, the trend of OR values increased both still had statistical significance (Ptrend <0.01, Ptrend < 0.01). CONCLUSION Increased consumption of sugary drinks will increase the risk of impaired fasting glucose and diabetes. Residents in Wuhai city should control their consumption of sugary drinks.
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Affiliation(s)
- H Z He
- Department of Social Medicine and Health Education, Peking University School of Public Health, Beijing 100191, China
| | - T Zhang
- Department of Social Medicine and Health Education, Peking University School of Public Health, Beijing 100191, China
| | - J Zhou
- Department of Social Medicine and Health Education, Peking University School of Public Health, Beijing 100191, China
| | - D P Wang
- Center for Disease Control and Prevention of Wuhai City, Wuhai 016000, Inner Mongolia, China
| | - H J Wang
- Center for Disease Control and Prevention of Wuhai City, Wuhai 016000, Inner Mongolia, China
| | - Y Song
- Center for Disease Control and Prevention of Wuhai City, Wuhai 016000, Inner Mongolia, China
| | - Z Zhu
- Department of Social Medicine and Health Education, Peking University School of Public Health, Beijing 100191, China
| | - P Y Wang
- Department of Social Medicine and Health Education, Peking University School of Public Health, Beijing 100191, China
| | - A P Liu
- Department of Social Medicine and Health Education, Peking University School of Public Health, Beijing 100191, China
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Yang L, Xin EY, Liao B, Lai LJ, Han M, Wang XP, Ju WQ, Wang DP, Guo ZY, He XS. Development and Validation of a Nomogram for Predicting Incidence of Early Allograft Dysfunction Following Liver Transplantation. Transplant Proc 2018; 49:1357-1363. [PMID: 28736007 DOI: 10.1016/j.transproceed.2017.03.083] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Accepted: 03/15/2017] [Indexed: 12/12/2022]
Abstract
OBJECTIVE Early allograft dysfunction (EAD) is frequent complication post-liver transplantation and is closely related to recipient's mortality and morbidity. We sought to develop a nomogram for predicting incidence of EAD. METHODS Based on multivariate analysis of donor, recipient, and operation data of 199 liver transplants from deceased donors between 2013 and 2015, we identified 5 significant risk factors for EAD to build a nomogram. The model was subjected to prospective validation with a cohort of 42 patients who was recruited between January and June 2016. The predictive accuracy and discriminative ability were measured by area under the receiver operating characteristic curve (AUC). The agreement between nomogram prediction and actual observation was showed by the calibration curve. RESULTS Incidence rate of EAD in the training set and validation cohort were 55.91% (104/199) and 54.76% (23/42), respectively. In the training set, according to the results of univariable and multivariable analysis, 5 independent risk factors including donor gender, donor serum gamma-glutamyl transpeptidase level, donor serum urea level, donor comorbidities (respiratory, cardiac, and renal dysfunction), and recipient Model for End-stage Liver Disease score were identified and assembled into the nomogram. The AUC of internal validation using bootstrap resampling and prospective validation using the external cohort of 42 patients was 0.74 and 0.60, respectively. The calibration curves for probability of EAD showed acceptable agreement between nomogram prediction and actual observation. According to the score table, the probability of EAD was under 30% when the total point tally was under 72. But when the total was up to 139, the risk of EAD increased to 60%. CONCLUSION We've established and validated a nomogram that can provide individual prediction of EAD for liver transplant recipients. The practical prognostic model may help clinicians to qualify the liver graft accurately, making a more reasonable allocation of organs.
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Affiliation(s)
- L Yang
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China; Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, Guangzhou, China; Guangdong Provincial International Cooperation Base of Science and Technology, Guangzhou, China
| | - E Y Xin
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China; Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, Guangzhou, China; Guangdong Provincial International Cooperation Base of Science and Technology, Guangzhou, China
| | - B Liao
- Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, Guangzhou, China; Guangdong Provincial International Cooperation Base of Science and Technology, Guangzhou, China; Pathology Department, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China
| | - L J Lai
- Intensive Care Unit, Xin Yi People's Hospital, Xinyi, China
| | - M Han
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China; Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, Guangzhou, China; Guangdong Provincial International Cooperation Base of Science and Technology, Guangzhou, China
| | - X P Wang
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China; Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, Guangzhou, China; Guangdong Provincial International Cooperation Base of Science and Technology, Guangzhou, China
| | - W Q Ju
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China; Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, Guangzhou, China; Guangdong Provincial International Cooperation Base of Science and Technology, Guangzhou, China
| | - D P Wang
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China; Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, Guangzhou, China; Guangdong Provincial International Cooperation Base of Science and Technology, Guangzhou, China
| | - Z Y Guo
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China; Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, Guangzhou, China; Guangdong Provincial International Cooperation Base of Science and Technology, Guangzhou, China.
| | - X S He
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, China; Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, Guangzhou, China; Guangdong Provincial International Cooperation Base of Science and Technology, Guangzhou, China.
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16
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Fu SJ, Ji F, Han M, Chen MG, Wang XP, Ju WQ, Zhao Q, Wu LW, Ren QQ, Guo ZY, Wang DP, Zhu XF, Ma Y, He XS. Prognostic value of combined preoperative fibrinogen and neutrophil-lymphocyte ratio in patients with hepatocellular carcinoma after liver transplantation. Oncotarget 2018; 8:4301-4312. [PMID: 27935864 PMCID: PMC5354833 DOI: 10.18632/oncotarget.13804] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2016] [Accepted: 11/02/2016] [Indexed: 02/07/2023] Open
Abstract
OBJECTIVES Elevated plasma fibrinogen (Fib) correlated with patient's prognosis in several solid tumors. However, few studies have illuminated the relationship between preoperative Fib and prognosis of HCC after liver transplantation. We aimed to clarify the prognostic value of Fib and whether the prognostic accuracy can be enhanced by the combination of Fib and neutrophil-lymphocyte ratio (NLR). RESULTS Fib was correlated with Child-pugh stage, alpha-fetoprotein (AFP), size of largest tumor, macro- and micro-vascular invasion. Univariate analysis showed preoperative Fib, AFP, NLR, size of largest tumor, tumor number, macro- and micro- vascular invasion were significantly associated with disease-free survival (DFS) and overall survival (OS) in HCC patients with liver transplantation. After multivariate analysis, only Fib and macro-vascular invasion were independently correlated with DFS and OS. Survival analysis showed that preoperative Fib > 2.345 g/L predicted poor prognosis of patients HCC after liver transplantation. Preoperative Fib showed prognostic value in various subgroups of HCC. Furthermore, the predictive range was expanded by the combination of Fib and NLR. MATERIALS AND METHODS Data were collected retrospectively from 130 HCC patients who underwent liver transplantation. Preoperative Fib, NLR and clinicopathologic variables were analyzed. The survival analysis was performed by the Kaplan-Meier method, and compared by the log-rank test. Univariate and multivariate analyses were performed to identify the prognostic factors for DFS and OS. CONCLUSIONS Preoperative Fib is an independent effective predictor of prognosis for HCC patients, higher levels of Fib predict poorer outcomes and the combination of Fib and NLR enlarges the prognostic accuracy of testing.
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Affiliation(s)
- Shun-Jun Fu
- Organ Transplant Center, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China.,Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China.,Guangdong Provincial International Cooperation Base of Science and Technology (Organ Transplantation), the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China.,Department of Hepatobiliary Surgery, The Second Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangdong Provincial Hospital of Traditional Chinese Medicine, Guangzhou 510120, China
| | - Fei Ji
- Organ Transplant Center, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China.,Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China.,Guangdong Provincial International Cooperation Base of Science and Technology (Organ Transplantation), the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China
| | - Ming Han
- Organ Transplant Center, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China.,Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China.,Guangdong Provincial International Cooperation Base of Science and Technology (Organ Transplantation), the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China
| | - Mao-Gen Chen
- Organ Transplant Center, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China.,Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China.,Guangdong Provincial International Cooperation Base of Science and Technology (Organ Transplantation), the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China
| | - Xiao-Ping Wang
- Organ Transplant Center, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China.,Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China.,Guangdong Provincial International Cooperation Base of Science and Technology (Organ Transplantation), the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China
| | - Wei-Qiang Ju
- Organ Transplant Center, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China.,Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China.,Guangdong Provincial International Cooperation Base of Science and Technology (Organ Transplantation), the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China
| | - Qiang Zhao
- Organ Transplant Center, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China.,Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China.,Guangdong Provincial International Cooperation Base of Science and Technology (Organ Transplantation), the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China
| | - Lin-Wei Wu
- Organ Transplant Center, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China.,Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China.,Guangdong Provincial International Cooperation Base of Science and Technology (Organ Transplantation), the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China
| | - Qing-Qi Ren
- Organ Transplant Center, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China.,Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China.,Guangdong Provincial International Cooperation Base of Science and Technology (Organ Transplantation), the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China
| | - Zhi-Yong Guo
- Organ Transplant Center, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China.,Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China.,Guangdong Provincial International Cooperation Base of Science and Technology (Organ Transplantation), the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China
| | - Dong-Ping Wang
- Organ Transplant Center, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China.,Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China.,Guangdong Provincial International Cooperation Base of Science and Technology (Organ Transplantation), the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China
| | - Xiao-Feng Zhu
- Organ Transplant Center, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China.,Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China.,Guangdong Provincial International Cooperation Base of Science and Technology (Organ Transplantation), the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China
| | - Yi Ma
- Organ Transplant Center, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China.,Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China.,Guangdong Provincial International Cooperation Base of Science and Technology (Organ Transplantation), the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China
| | - Xiao-Shun He
- Organ Transplant Center, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China.,Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China.,Guangdong Provincial International Cooperation Base of Science and Technology (Organ Transplantation), the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China
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17
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Wang DP, Huang X, Jin H, Qin LQ, Zhang ZW. [The status of preventive medicine program of the National Natural Science Foundation of China in 2017]. Zhonghua Yu Fang Yi Xue Za Zhi 2017; 51:1137-1141. [PMID: 29262500 DOI: 10.3760/cma.j.issn.0253-9624.2017.12.018] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Affiliation(s)
- D P Wang
- Key Laboratory of Environmental Pollution Monitoring and Disease Control, Ministry of Education, Department of Toxicology, Guizhou Medical University, Guiyang 550025, China
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18
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Ni Y, Li JM, Liu MK, Zhang TT, Wang DP, Zhou WH, Hu LZ, Lv WL. Pathological process of liver sinusoidal endothelial cells in liver diseases. World J Gastroenterol 2017; 23:7666-7677. [PMID: 29209108 PMCID: PMC5703927 DOI: 10.3748/wjg.v23.i43.7666] [Citation(s) in RCA: 51] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/22/2017] [Revised: 09/13/2017] [Accepted: 09/28/2017] [Indexed: 02/06/2023] Open
Abstract
Cirrhosis develops from liver fibrosis and is the severe pathological stage of all chronic liver injury. Cirrhosis caused by hepatitis B virus and hepatitis C virus infection is especially common. Liver fibrosis and cirrhosis involve excess production of extracellular matrix, which is closely related to liver sinusoidal endothelial cells (LSECs). Damaged LSECs can synthesize transforming growth factor-beta and platelet-derived growth factor, which activate hepatic stellate cells and facilitate the synthesis of extracellular matrix. Herein, we highlight the angiogenic cytokines of LSECs related to liver fibrosis and cirrhosis at different stages and focus on the formation and development of liver fibrosis and cirrhosis. Inhibition of LSEC angiogenesis and antiangiogenic therapy are described in detail. Targeting LSECs has high therapeutic potential for liver diseases. Further understanding of the mechanism of action will provide stronger evidence for the development of anti-LSEC drugs and new directions for diagnosis and treatment of liver diseases.
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MESH Headings
- Angiogenesis Inhibitors/pharmacology
- Angiogenesis Inhibitors/therapeutic use
- Animals
- Cytokines/metabolism
- Disease Models, Animal
- Endothelial Cells/drug effects
- Endothelial Cells/metabolism
- Endothelial Cells/pathology
- Endothelial Cells/virology
- Extracellular Matrix/metabolism
- Extracellular Matrix/pathology
- Hepacivirus/pathogenicity
- Hepatic Stellate Cells/metabolism
- Hepatic Stellate Cells/pathology
- Hepatic Stellate Cells/virology
- Hepatitis B virus/pathogenicity
- Hepatitis, Viral, Human/diagnosis
- Hepatitis, Viral, Human/drug therapy
- Hepatitis, Viral, Human/pathology
- Hepatitis, Viral, Human/virology
- Humans
- Liver/blood supply
- Liver/cytology
- Liver/pathology
- Liver/virology
- Liver Cirrhosis/diagnosis
- Liver Cirrhosis/drug therapy
- Liver Cirrhosis/pathology
- Liver Cirrhosis/virology
- Neovascularization, Pathologic/drug therapy
- Neovascularization, Pathologic/pathology
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Affiliation(s)
- Yao Ni
- Department of Infection, Guang’anmen Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, China
| | - Juan-Mei Li
- Department of Infection, Guang’anmen Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, China
| | - Ming-Kun Liu
- Department of Infection, Guang’anmen Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, China
| | - Ting-Ting Zhang
- Department of Infection, Guang’anmen Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, China
| | - Dong-Ping Wang
- Department of Infection, Guang’anmen Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, China
| | - Wen-Hui Zhou
- Department of Infection, Guang’anmen Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, China
| | - Ling-Zi Hu
- Department of Infection, Guang’anmen Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, China
| | - Wen-Liang Lv
- Department of Infection, Guang’anmen Hospital, China Academy of Chinese Medical Sciences, Beijing 100053, China
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19
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He XS, Fu SJ, Zhao Q, Zhu XF, Wang DP, Han M, Ju WQ, Ma Y, Jiao XY, Yuan XP, Hu AB, Guo ZY. A simplified multivisceral transplantation procedure for patients with combined end-stage liver disease and type 2 diabetes mellitus. Liver Transpl 2017; 23:1161-1170. [PMID: 28422396 DOI: 10.1002/lt.24774] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/01/2016] [Revised: 03/25/2017] [Accepted: 04/06/2017] [Indexed: 01/13/2023]
Abstract
In liver transplant patients with type 2 diabetes mellitus (DM), the disease worsens after transplantation because of longterm use of diabetogenic immunosuppressive drugs, making management of those patients a great challenge. The objective of our study was to evaluate the safety and efficacy of a simplified multivisceral transplantation (SMT) procedure for the treatment of patients with end-stage liver disease and concurrent type 2 DM. Forty-four patients who had pretransplant type 2 DM were included. A total of 23 patients received SMT, and 21 patients received orthotopic liver transplantation (OLT). Patient and graft survivals, complications, diabetic control, and quality of life (QOL) were retrospectively analyzed in both groups. The 1-, 3-, and 5-year cumulative patient and graft survival rates were 91.5%, 75.4%, and 75.4% in the SMT group and were 94.4%, 64.4%, and 64.4% in the OLT group, respectively (P = 0.70). Interestingly, 95.7% (22/23) of patients achieved complete remission from DM after SMT compared with 16.7% (3/18) of patients after OLT. The occurrence of biliary complication was significantly higher in the OLT group than that in the SMT group (23.8% versus 0.0%; P = 0.01). Moreover, better QOL was observed in the SMT group than that in the OLT group. In conclusion, the SMT procedure we described here is a safe and viable option for patients with end-stage live disease and concurrent type 2 DM. This SMT procedure offers excellent transplant outcomes and QOL. Liver Transplantation 23 1161-1170 2017 AASLD.
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Affiliation(s)
- Xiao-Shun He
- Organ Transplant Center, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China.,Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, Guangzhou, People's Republic of China.,Organ Transplantation, Guangdong Provincial International Cooperation Base of Science and Technology, Guangzhou, People's Republic of China
| | - Shun-Jun Fu
- Organ Transplant Center, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China.,Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, Guangzhou, People's Republic of China.,Organ Transplantation, Guangdong Provincial International Cooperation Base of Science and Technology, Guangzhou, People's Republic of China
| | - Qiang Zhao
- Organ Transplant Center, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China.,Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, Guangzhou, People's Republic of China.,Organ Transplantation, Guangdong Provincial International Cooperation Base of Science and Technology, Guangzhou, People's Republic of China
| | - Xiao-Feng Zhu
- Organ Transplant Center, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China.,Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, Guangzhou, People's Republic of China.,Organ Transplantation, Guangdong Provincial International Cooperation Base of Science and Technology, Guangzhou, People's Republic of China
| | - Dong-Ping Wang
- Organ Transplant Center, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China.,Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, Guangzhou, People's Republic of China.,Organ Transplantation, Guangdong Provincial International Cooperation Base of Science and Technology, Guangzhou, People's Republic of China
| | - Ming Han
- Organ Transplant Center, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China.,Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, Guangzhou, People's Republic of China.,Organ Transplantation, Guangdong Provincial International Cooperation Base of Science and Technology, Guangzhou, People's Republic of China
| | - Wei-Qiang Ju
- Organ Transplant Center, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China.,Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, Guangzhou, People's Republic of China.,Organ Transplantation, Guangdong Provincial International Cooperation Base of Science and Technology, Guangzhou, People's Republic of China
| | - Yi Ma
- Organ Transplant Center, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China.,Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, Guangzhou, People's Republic of China.,Organ Transplantation, Guangdong Provincial International Cooperation Base of Science and Technology, Guangzhou, People's Republic of China
| | - Xing-Yuan Jiao
- Organ Transplant Center, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China.,Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, Guangzhou, People's Republic of China.,Organ Transplantation, Guangdong Provincial International Cooperation Base of Science and Technology, Guangzhou, People's Republic of China
| | - Xiao-Peng Yuan
- Organ Transplant Center, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China.,Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, Guangzhou, People's Republic of China.,Organ Transplantation, Guangdong Provincial International Cooperation Base of Science and Technology, Guangzhou, People's Republic of China
| | - An-Bin Hu
- Organ Transplant Center, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China.,Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, Guangzhou, People's Republic of China.,Organ Transplantation, Guangdong Provincial International Cooperation Base of Science and Technology, Guangzhou, People's Republic of China
| | - Zhi-Yong Guo
- Organ Transplant Center, First Affiliated Hospital, Sun Yat-sen University, Guangzhou, People's Republic of China.,Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, Guangzhou, People's Republic of China.,Organ Transplantation, Guangdong Provincial International Cooperation Base of Science and Technology, Guangzhou, People's Republic of China
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20
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Sun YH, Kong TT, Wang TT, Zhu HF, Zhuang TW, Wang DP. [Study of gonadotropin releasing hormone on suppressing migrationg and invationg of human nasopharyngeal carcinoma cells CNE2]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2017; 31:830-834. [PMID: 29774996 DOI: 10.13201/j.issn.1001-1781.2017.11.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 03/03/2017] [Indexed: 11/12/2022]
Abstract
Objective:The aim of this study is to investigate the effect of gonadotropin releasing hormone (GnRH) on suppressing cell viability, apoptosis, migrationg and invationg of human nasopharyngeal carcinoma cells CNE2. Method:Nasopharyngeal carcinoma tissues and postnasal catarrh tissues were collected, the expression of GnRH positive cells and GnRH mRNA were detected by immunohistochemical staining and qRT-PCR. The human nasopharyngeal carcinoma CNE2 cells and immortalized nasopharyngeal epithelial cell line NP69 were cultured in vitro, and the expression of GnRH positive cells and GnRH mRNA were detected by immunohistochemical staining and qRT-PCR. The CNE2 cells were treated with GnRH with various concentrations 0 (Blank group), 10⁻², 10⁻¹, 10⁰ nmol/L. The effects of GnRH on the viability, apoptosis, migration and invasion of CNE2 cells were detected by cell Counting Kit (CCK-8), flow cytometry, wound healing assay and transwell chamber assay in vitro. Result:The expression of GnRH positive cells and GnRH mRNA in nasopharyngeal carcinoma tissues were markedly down regulated than postnasal catarrh tissues (P<0.05). The expression of GnRH positive cells and GnRH mRNA in CNE2 cells were markedly down regulated than NP69 cells (P<0.05). Compared with blank group, GnRH can significantly inhibite the cell viability cells, apoptosis, migration and invasive ability (P<0.05 or P<0.01). Conclusion:GnRH significantly inhibited the cell viability, apoptosis, migration and invasive ability of CNE2 cells.
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Affiliation(s)
- Y H Sun
- Department of Otolaryngology Head and Neck Surgery, the Affiliated Hongqi Hospital of Mudanjiang Medical University, Mudanjiang, 157011, China
| | - T T Kong
- Department of Otolaryngology Head and Neck Surgery, the Affiliated Hongqi Hospital of Mudanjiang Medical University, Mudanjiang, 157011, China
| | - T T Wang
- Department of Endocrinology, the Affiliated Hongqi Hospital of Mudanjiang Medical University
| | - H F Zhu
- Department of Endocrinology, the Affiliated Hongqi Hospital of Mudanjiang Medical University
| | - T W Zhuang
- Department of Endocrinology, the Affiliated Hongqi Hospital of Mudanjiang Medical University
| | - D P Wang
- Department of Endocrinology, the Affiliated Hongqi Hospital of Mudanjiang Medical University
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21
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Fu SJ, Chen J, Ji F, Ju WQ, Zhao Q, Chen MG, Guo ZY, Wu LW, Ma Y, Wang DP, Zhu XF, He XS. MiR-486-5p negatively regulates oncogenic NEK2 in hepatocellular carcinoma. Oncotarget 2017; 8:52948-52959. [PMID: 28881785 PMCID: PMC5581084 DOI: 10.18632/oncotarget.17635] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [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: 09/27/2016] [Accepted: 03/10/2017] [Indexed: 02/06/2023] Open
Abstract
NEK2 is a member of the NIMA-related family of serine/threonine centrosomal kinases. We analyzed the relationship between differential expression of NEK2 and hepatocellular carcinoma (HCC) patient outcomes after liver transplants. We also studied the microRNAs that affect NEK2 expression. Analysis of multiple microarrays in the Oncomine database revealed that NEK2 expression was higher in HCC tissues than adjacent normal liver tissues. High NEK2 expression correlated with tumor size, pathological grade and macro- and microvascular invasion. Consequently, patients exhibiting high NEK2 expression had poorer prognosis. This was corroborated by our multivariate analysis that showed NEK2 to be an independent prognostic factor for HCC patient survival. Further, high NEK2 expression promoted proliferation, colony formation, migration and invasion of HCC cell lines. Tumor xenograft data from Balb/c nude mice demonstrated that HCC cells with high NEK2 expression formed larger tumors than those with low NEK2 expression. Finally, we showed that miR-486-5p suppressed NEK2 by directly binding to its transcript 3′UTR. We also demonstrated an inverse relationship between miR-486-5p and NEK2 expression in HCC patients. These findings suggest miR-486-5p negatively regulates NEK2, which is a critical prognostic indicator of HCC patient survival after liver transplantation.
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Affiliation(s)
- Shun-Jun Fu
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China.,Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China.,Guangdong Provincial International Cooperation Base of Science and Technology (Organ Transplantation), The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China
| | - Jian Chen
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China.,Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China.,Guangdong Provincial International Cooperation Base of Science and Technology (Organ Transplantation), The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China
| | - Fei Ji
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China.,Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China.,Guangdong Provincial International Cooperation Base of Science and Technology (Organ Transplantation), The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China
| | - Wei-Qiang Ju
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China.,Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China.,Guangdong Provincial International Cooperation Base of Science and Technology (Organ Transplantation), The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China
| | - Qiang Zhao
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China.,Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China.,Guangdong Provincial International Cooperation Base of Science and Technology (Organ Transplantation), The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China
| | - Mao-Gen Chen
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China.,Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China.,Guangdong Provincial International Cooperation Base of Science and Technology (Organ Transplantation), The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China
| | - Zhi-Yong Guo
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China.,Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China.,Guangdong Provincial International Cooperation Base of Science and Technology (Organ Transplantation), The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China
| | - Lin-Wei Wu
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China.,Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China.,Guangdong Provincial International Cooperation Base of Science and Technology (Organ Transplantation), The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China
| | - Yi Ma
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China.,Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China.,Guangdong Provincial International Cooperation Base of Science and Technology (Organ Transplantation), The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China
| | - Dong-Ping Wang
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China.,Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China.,Guangdong Provincial International Cooperation Base of Science and Technology (Organ Transplantation), The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China
| | - Xiao-Feng Zhu
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China.,Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China.,Guangdong Provincial International Cooperation Base of Science and Technology (Organ Transplantation), The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China
| | - Xiao-Shun He
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China.,Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China.,Guangdong Provincial International Cooperation Base of Science and Technology (Organ Transplantation), The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China
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22
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You W, Liu LJ, Chen HX, Xiong JY, Wang DM, Huang JH, Ding JL, Wang DP. Application of 3D printing technology on the treatment of complex proximal humeral fractures (Neer3-part and 4-part) in old people. Orthop Traumatol Surg Res 2016; 102:897-903. [PMID: 27521179 DOI: 10.1016/j.otsr.2016.06.009] [Citation(s) in RCA: 47] [Impact Index Per Article: 5.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2015] [Revised: 03/15/2016] [Accepted: 06/09/2016] [Indexed: 02/02/2023]
Abstract
PURPOSE This study was conducted to investigate the feasibility and clinical potential of using the 3D printing technology (3DPT) versus typical strategy (thin-layer CT scan) for the treatment of complicated proximal humeral fractures (PHFs) in old people. METHODS Sixty-six old patients age ranging from 61 to 76 years with persistent complicated PHFs were randomly assigned to two groups as per the controlled randomization table (34 cases in the test group and 32 cases in the control group). In the test group, 3DPT was applied to build the 3D facture model of a patient, according to the data acquired from the thin-layer CT scan and subsequently processed with Mimics software. This helped to confirm the diagnosis, design the individual operation plan, simulate the surgical procedures and perform the surgery as plan. In the control group, only thin-layer CT scan was applied for the design of the operation plan prior to the surgery. Here, parameters including surgery duration, blood loss volume during surgery, the number of fluoroscopy, time to union were statistically analyzed for two groups after the operation. The screw lengths designed before the surgery and measured during the surgery were compared. RESULTS The 3D PHF model generated using 3DPT was able to provide the visual display and omni-directional observation of the direction and severity of the fracture dislocation, which facilitated preoperative diagnosis, operation planning and design, data measurement, preselection of internal fixator and surgical outcome simulation. According to the follow-up ranging from 12∼28 months for the 66 patients, the results showed no significant difference in time to union between the two groups (P>0.05). Apart from that, less surgery duration, less blood loss during surgery, less number of fluoroscopy can be observed compared with the control group (P<0.05). CONCLUSIONS In this study, 3DPT showed great clinical feasibility of the treatment of complicated PHFs. The 3D-print PHF model had the ability to clearly display the fracture and thus was useful to determine the fracture classification and the magnitude of fracture injury. It benefited surgeons to gain a better understanding of complicated PHFs, design a most suitable operation plan prior to surgery and facilitate the doctor-patient communication. This therefore enabled the reduction of intraoperative injury and the optimization of surgical outcomes.
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Affiliation(s)
- W You
- Department of traumatic orthopaedics, the affiliated clinical college Shenzhen second people's hospital, Anhui medical university, 230000 Hefei, Anhui, P.R. China; Shenzhen digital orthopedics technology engineering laboratory, Sun Gang West road, 518035 Shenzhen, Guangdong, P.R. China
| | - L J Liu
- Department of traumatic orthopaedics, the affiliated clinical college Shenzhen second people's hospital, Anhui medical university, 230000 Hefei, Anhui, P.R. China
| | - H X Chen
- Department of traumatic orthopaedics, the affiliated clinical college Shenzhen second people's hospital, Anhui medical university, 230000 Hefei, Anhui, P.R. China
| | - J Y Xiong
- Department of traumatic orthopaedics, the affiliated clinical college Shenzhen second people's hospital, Anhui medical university, 230000 Hefei, Anhui, P.R. China
| | - D M Wang
- Department of traumatic orthopaedics, the affiliated clinical college Shenzhen second people's hospital, Anhui medical university, 230000 Hefei, Anhui, P.R. China
| | - J H Huang
- Shenzhen digital orthopedics technology engineering laboratory, Sun Gang West road, 518035 Shenzhen, Guangdong, P.R. China
| | - J L Ding
- Department of traumatic orthopaedics, the affiliated clinical college Shenzhen second people's hospital, Anhui medical university, 230000 Hefei, Anhui, P.R. China
| | - D P Wang
- Shenzhen digital orthopedics technology engineering laboratory, Sun Gang West road, 518035 Shenzhen, Guangdong, P.R. China.
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23
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Ji F, Fu SJ, Guo ZY, Pang H, Ju WQ, Wang DP, Hua YP, He XS. Prognostic value of combined preoperative lactate dehydrogenase and alkaline phosphatase levels in patients with resectable pancreatic ductal adenocarcinoma. Medicine (Baltimore) 2016; 95:e4065. [PMID: 27399091 PMCID: PMC5058820 DOI: 10.1097/md.0000000000004065] [Citation(s) in RCA: 26] [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] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/12/2022] Open
Abstract
Serum enzymes, including lactate dehydrogenase (LDH) and alkaline phosphatase (ALP), have recently been reported to play important roles in tumor growth. Increases in LDH and ALP have been confirmed to predict poor prognosis in patients with various cancers. However, their prognostic value in pancreatic cancer has not been well studied. Therefore, we reviewed the preoperative data on LDH and ALP in 185 pancreatic ductal adenocarcinoma (PDAC) patients who underwent surgery between July 2005 and December 2010 to explore the prognostic value of these markers. The cutoff points were determined based on the upper limit of their normal values. The Chi-square test was used to analyze the relationships between LDH/ALP and clinical characteristics. Univariate and multivariate analyses were performed to identify the predictive value of the above factors for disease-free survival (DFS) and overall survival (OS). We found that elevation of LDH was related to carbohydrate antigen 19-9 (CA19-9), lymph node involvement, tumor size, TNM, distant metastasis, and recurrence. Additionally, ALP was correlated to perineural invasion. After multivariate analysis, LDH and ALP were identified as independent prognostic factors for DFS and OS, and elevation of LDH/ALP was correlated with poor DFS and OS. Notably, there was a positive correlation between LDH and ALP. The predictive power of LDH combined with ALP was more sensitive than that of either one alone. Therefore, we conclude that the preoperative LDH and ALP values are prognostic factors for PADC, and the prognostic accuracy of testing can be enhanced by the combination of LDH and ALP.
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Affiliation(s)
- Fei Ji
- Organ Transplant Center, the First Affiliated Hospital, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, Guangdong Provincial international Cooperation Base of Science and Technology, Guangzhou, P.R. China
| | - Shun-Jun Fu
- Organ Transplant Center, the First Affiliated Hospital, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, Guangdong Provincial international Cooperation Base of Science and Technology, Guangzhou, P.R. China
| | - Zhi-Yong Guo
- Organ Transplant Center, the First Affiliated Hospital, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, Guangdong Provincial international Cooperation Base of Science and Technology, Guangzhou, P.R. China
| | | | - Wei-Qiang Ju
- Organ Transplant Center, the First Affiliated Hospital, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, Guangdong Provincial international Cooperation Base of Science and Technology, Guangzhou, P.R. China
| | - Dong-Ping Wang
- Organ Transplant Center, the First Affiliated Hospital, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, Guangdong Provincial international Cooperation Base of Science and Technology, Guangzhou, P.R. China
| | - Yun-Peng Hua
- Department of Liver Surgery, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou, P.R. China
- Correspondence: Xiao-Shun He, Organ Transplant Center, the First Affiliated Hospital, Sun Yat-sen University; Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology; Guangdong Provincial international Cooperation Base of Science and Technology, Guangzhou 510080, P. R. China (e-mail: ). Yun-Peng Hua, Department of Liver Surgery, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China (e-mail: )
| | - Xiao-Shun He
- Organ Transplant Center, the First Affiliated Hospital, Sun Yat-sen University, Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology, Guangdong Provincial international Cooperation Base of Science and Technology, Guangzhou, P.R. China
- Correspondence: Xiao-Shun He, Organ Transplant Center, the First Affiliated Hospital, Sun Yat-sen University; Guangdong Provincial Key Laboratory of Organ Donation and Transplant Immunology; Guangdong Provincial international Cooperation Base of Science and Technology, Guangzhou 510080, P. R. China (e-mail: ). Yun-Peng Hua, Department of Liver Surgery, the First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, P. R. China (e-mail: )
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Mitrofanov YP, Wang DP, Makarov AS, Wang WH, Khonik VA. Towards understanding of heat effects in metallic glasses on the basis of macroscopic shear elasticity. Sci Rep 2016; 6:23026. [PMID: 26975587 PMCID: PMC4792145 DOI: 10.1038/srep23026] [Citation(s) in RCA: 39] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2015] [Accepted: 02/25/2016] [Indexed: 11/17/2022] Open
Abstract
It is shown that all heat effects taking place upon annealing of a metallic glass within the glassy and supercooled liquid states, i.e. heat release below the glass transition temperature and heat absorption above it, as well as crystallization-induced heat release, are related to the macroscopic shear elasticity. The underlying physical reason can be understood as relaxation in the system of interstitialcy-type ”defects” (elastic dipoles) frozen-in from the melt upon glass production.
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Affiliation(s)
- Y P Mitrofanov
- Department of General Physics, State Pedagogical University, Lenin St. 86, Voronezh, 394043 Russia
| | - D P Wang
- Institute of Physics, Chinese Academy of Sciences, Beijing 100190, PR China
| | - A S Makarov
- Department of General Physics, State Pedagogical University, Lenin St. 86, Voronezh, 394043 Russia
| | - W H Wang
- Institute of Physics, Chinese Academy of Sciences, Beijing 100190, PR China
| | - V A Khonik
- Department of General Physics, State Pedagogical University, Lenin St. 86, Voronezh, 394043 Russia
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Zhou J, Ju WQ, Yuan XP, Zhu XF, Wang DP, He XS. miR-26a regulates mouse hepatocyte proliferation via directly targeting the 3' untranslated region of CCND2 and CCNE2. Hepatobiliary Pancreat Dis Int 2016; 15:65-72. [PMID: 26818545 DOI: 10.1016/s1499-3872(15)60383-6] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
BACKGROUND The deficiency of liver regeneration needs to be addressed in the fields of liver surgery, split liver transplantation and living donor liver transplantation. Researches of microRNAs would broaden our understandings on the mechanisms of various diseases. Our previous research confirmed that miR-26a regulated liver regeneration in mice; however, the relationship between miR-26a and its target, directly or indirectly, remains unclear. Therefore, the present study further investigated the mechanism of miR-26a in regulating mouse hepatocyte proliferation. METHODS An established mouse liver cell line, Nctc-1469, was transfected with Ad5-miR-26a-EGFP, Ad5-anti-miR-26a-EGFP or Ad5-EGFP vector. Cell proliferation was assessed by MTS, cell apoptosis and cell cycle by flow cytometry, and gene expression by Western blotting and quantitative real-time PCR. Dual-luciferase reporter assays were used to test targets of miR-26a. RESULTS Compared with the Ad5-EGFP group, Ad5-anti-miR-26a-EGFP down-regulated miR-26a and increased proliferation of hepatocytes, with more cells entering the G1 phase of cell cycle (82.70%+/-1.45% vs 75.80%+/-3.92%), and decreased apoptosis (5.50%+/-0.35% vs 6.73%+/-0.42%). CCND2 and CCNE2 were the direct targeted genes of miR-26a. miR-26a down-regulation up-regulated CCND2 and CCNE2 expressions and down-regulated p53 expression in Nctc-1469 cells. On the contrary, miR-26a over-expression showed the opposite results. CONCLUSIONS miR-26a regulated mouse hepatocyte proliferation by directly targeting the 3' untranslated regions of cyclin D2/cyclin E2; miR-26a also regulated p53-mediated apoptosis. Our data suggested that miR-26a may be a promising regulator in liver regeneration.
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Affiliation(s)
- Jian Zhou
- Organ Transplant Center, the First Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510080, China.
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Ye H, Wang DP, Zhang CZ, Zhang LJ, Wang HC, Li ZH, Chen Z, Zhang T, Cai CJ, Ju WQ, Ma Y, Guo ZY, He XS. Pathological characteristics of liver allografts from donation after brain death followed by cardiac death in pigs. ACTA ACUST UNITED AC 2014; 34:687-691. [PMID: 25318878 DOI: 10.1007/s11596-014-1337-6] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/28/2014] [Revised: 08/25/2014] [Indexed: 01/08/2023]
Abstract
Donation after brain death followed by circulatory death (DBCD) is a unique practice in China. The aim of this study was to define the pathologic characteristics of DBCD liver allografts in a porcine model. Fifteen male pigs (25-30 kg) were allocated randomly into donation after brain death (DBD), donation after circulatory death (DCD) and DBCD groups. Brain death was induced by augmenting intracranial pressure. Circulatory death was induced by withdrawal of life support in DBCD group and by venous injection of 40 mL 10% potassium chloride in DCD group. The donor livers were perfused in situ and kept in cold storage for 4 h. Liver tissue and common bile duct samples were collected for hematoxylin and eosin staining, TUNEL testing and electron microscopic examination. Spot necrosis was found in hepatic parenchyma of DBD and DBCD groups, while a large area of necrosis was shown in DCD group. The apoptosis rate of hepatocytes in DBD [(0.56±0.30)%] and DBCD [(0.50 ± 0.11)%] groups was much lower than that in DCD group [(3.78±0.33)%] (P<0.05). And there was no significant difference between DBD group and DBCD group (P>0.05)). The structures of bile duct were intact in both DBD and DBCD groups, while the biliary epithelium was totally damaged in DCD group. Under electron microscope, the DBD hepatocytes were characterized by intact cell membrane, well-organized endoplasmic reticulum, mild mitochondria edema and abundant glycogens. Broken cell membrane, mild inflammatory cell infiltration and sinusoidal epithelium edema, as well as reduced glycogen volume, were found in the DBCD hepatocytes. The DCD hepatocytes had more profound cell organelle injury and much less glycogen storage. In conclusion, the preservation injury of DBCD liver allografts is much less severe than that of un-controlled DCD, but more severe than that of DBD liver allografts under electron microscope, which might reflect post-transplant liver function to some extent.
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Affiliation(s)
- Hui Ye
- Organ Transplant Center, Sun Yat-sen University, Guangzhou, 510080, China
| | - Dong-Ping Wang
- Organ Transplant Center, Sun Yat-sen University, Guangzhou, 510080, China
| | - Chuan-Zhao Zhang
- Organ Transplant Center, Sun Yat-sen University, Guangzhou, 510080, China
| | - Long-Juan Zhang
- Laboratory of Surgery, Sun Yat-sen University, Guangzhou, 510080, China
| | - Hao-Chen Wang
- Organ Transplant Center, Sun Yat-sen University, Guangzhou, 510080, China
| | - Zhuo-Hui Li
- Organ Transplant Center, Sun Yat-sen University, Guangzhou, 510080, China
| | - Zhen Chen
- Department of Anesthesiology, Sun Yat-sen University, Guangzhou, 510080, China
| | - Tao Zhang
- Department of Anesthesiology, Sun Yat-sen University, Guangzhou, 510080, China
| | - Chang-Jie Cai
- Surgical Intensive Care Unit, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou, 510080, China
| | - Wei-Qiang Ju
- Organ Transplant Center, Sun Yat-sen University, Guangzhou, 510080, China
| | - Yi Ma
- Organ Transplant Center, Sun Yat-sen University, Guangzhou, 510080, China
| | - Zhi-Yong Guo
- Organ Transplant Center, Sun Yat-sen University, Guangzhou, 510080, China.
| | - Xiao-Shun He
- Organ Transplant Center, Sun Yat-sen University, Guangzhou, 510080, China.
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Han M, Guo ZY, Zhao Q, Wang XP, Yuan XP, Jiao XY, Yang CH, Wang DP, Ju WQ, Wu LW, Hu AB, Tai Q, Ma Y, Zhu XF, He XS. Liver transplantation using organs from deceased organ donors: a single organ transplant center experience. Hepatobiliary Pancreat Dis Int 2014; 13:409-15. [PMID: 25100126 DOI: 10.1016/s1499-3872(14)60274-5] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
BACKGROUND In 2011, a pilot program for deceased organ donation was initiated in China. We describe the first successful series of liver transplants in the pilot program. METHODS From July 2011 to August 2012, our center performed 26 liver transplants from a pool of 29 deceased donors. All organ donation and allograft procurement were conducted according to the national protocol. The clinical data of donors and recipients were collected and summarized retrospectively. RESULTS Among the 29 donors, 24 were China Category II donors (organ donation after cardiac death), and five were China Category III donors (organ donation after brain death followed by cardiac death). The recipients were mainly the patients with hepatocellular carcinoma. The one-year patient survival rate was 80.8% with a median follow-up of 422 (2-696) days. Among the five mortalities during the follow-up, three died of tumor recurrence. In terms of post-transplant complications, 9 recipients (34.6%) experienced early allograft dysfunction, 1 (3.8%) had non-anastomotic biliary stricture, and 1 (3.8%) was complicated with hepatic arterial thrombosis. None of these complications resulted in patient death. Notably, primary non-function was not observed in any of the grafts. CONCLUSION With careful donor selection, liver transplant from deceased donors can be performed safely and plays a critical role in overcoming the extreme organ shortage in China.
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Affiliation(s)
- Ming Han
- Organ Transplant Center, First Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510080, China.
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Li C, Wang DP, Duo J, Duojie LD, Chen XM, Du YZ, Yang HX, Zheng ZY, Yu MJ, Wei LX. [Study on safety of Tibetan medicine zuotai and preliminary study on clinical safety of its compound dangzuo]. Zhongguo Zhong Yao Za Zhi 2014; 39:2573-2582. [PMID: 25276985] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Zuotai (gTso thal) is a typical representative of Tibetan medicines containing heavy metals, but there is still lack of modem safety evaluation data so far. In this study, acute toxicity test, sub-acute toxicity test, one-time administration mercury distribution experiment, long-term mercury accumulative toxicity experiment and preliminary study on clinical safety of Compound Dangzuo were conducted in the hope of obtain the medicinal safety data of Zuotai. In the acute toxicity test, half of KM mice given the lethal dose of Zuotai were not died or poisoned, and LD50 was not found. The maximum tolerated dose of Zuotai was 80 g x kg(-1). In the subacute toxicity test, Zuotai could reduce ALT, AST, Crea levels in serums under low dose (13.34 mg x kg(-1) x d(-1)) and medium dose (53.36 mg x kg(-1) x d(-1)), with significant difference under low dose, and increase the levels of ALT, AST, MDA, Crea in serums under high dose (2 000 mg x kg(-1) x d(-1)); besides, the levels of BUN and GSH in serums reduced with the increase in dose of Zuotai, indicating a significant dose-effect relationship. In the one-time administration distribution experiment, the content of mercury in rat kidney, liver and lung increased after the one-time administration with Zuotai, with a significant dose-dependent relationship in kidney. In the long-term mercury accumulative toxicity experiment, KM mice were administered with equivalent doses of Zuotai for 4.5 months and then stopped drug administration for 1.5 months. Since the 2.5th month, they showed significant mercury accumulation in kidney, which gradually reduced after drug withdrawal, without significant change in mercury content in liver, spleen and brain and ALT, AST, TBIL, BUN and Crea in serum. At the 4.5th month after drug administration, KM mice showed slight structural changes in kidney, liver and spleen tissues, and gradually recovered to normal after drug withdrawal. Besides, no significant difference in weight gain was found between the Zuotai group and the control group. According to the findings of the clinical safety study of Dangzuo, after subjects administered Dangzuo under clinical dose for one month, their serum biochemical indicators, blood routine indicators and urine routine indicators showed no significant adverse change. This study proved that traditional Tibetan medicine Zuotai was slightly toxic, with a better safety in clinical combined administration and no adverse effects on bodies under the clinical dose and clinical medication cycle. However, long-term high-dose administration of Zuotai may have a certain effect on kidney.
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Wang DP, Wang J, Li GW, Gao ZK, Zhao ZQ, Liang Z, Wei CL, Zhang BL. [Impact of hepatitis B virus infection on liver function after hematopoietic stem cell transplantation]. Zhongguo Shi Yan Xue Ye Xue Za Zhi 2013; 21:173-6. [PMID: 23484714 DOI: 10.7534/j.issn.1009-2137.2013.01.035] [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: 11/22/2022]
Abstract
To analyze the impact of hepatitis B virus (HBV) infection on liver function of patients after hematopoietic stem cell transplantation (HSCT), the transplantation outcome of 48 patients infected with HBV prior to transplantation among 185 patients received HSCT was investigated retrospectively. The results showed that during a follow-up for 6 months after HSCT, the alanine aminotransferase (ALT) peak average values of the patients with HBsAg(+), HBsAb(+) and control groups were (281.6 ± 414.6), (95.4 ± 79.9) and (65.1 ± 44.2) U/L, respectively. The incidences of abnormal liver function of the patients with HBsAg(+), HBsAb(+) and control groups were 61.54%, 40.00% and 30.23% respectively. There were no significant differences between any two groups (P > 0.05). The lethality of those patients at late period after transplantation was not related to HBV infection. The hepatocirrhosis and hepatocarcinoma caused by HBV infection have not become major problems in long-term survivors. It is concluded that in HBsAg(+) patients received HSCT, the damage of liver function is more severe than control group, possibly increasing the development of abnormal liver function. The measures against the liver function damage should be taken. The prophylactic administration of ganciclovir for virus may be effective to prevent the activation of HBV.
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Affiliation(s)
- Dong-Ping Wang
- Department of Hematology, 537 Hospital of PLA, Shanxi Province, China.
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Paris CB, Hénaff ML, Aman ZM, Subramaniam A, Helgers J, Wang DP, Kourafalou VH, Srinivasan A. Evolution of the Macondo well blowout: simulating the effects of the circulation and synthetic dispersants on the subsea oil transport. Environ Sci Technol 2012; 46:13293-302. [PMID: 23167517 DOI: 10.1021/es303197h] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/22/2023]
Abstract
During the Deepwater Horizon incident, crude oil flowed into the Gulf of Mexico from 1522 m underwater. In an effort to prevent the oil from rising to the surface, synthetic dispersants were applied at the wellhead. However, uncertainties in the formation of oil droplets and difficulties in measuring their size in the water column, complicated further assessment of the potential effect of the dispersant on the subsea-to-surface oil partition. We adapted a coupled hydrodynamic and stochastic buoyant particle-tracking model to the transport and fate of hydrocarbon fractions and simulated the far-field transport of the oil from the intrusion depth. The evaluated model represented a baseline for numerical experiments where we varied the distributions of particle sizes and thus oil mass. The experiments allowed to quantify the relative effects of chemical dispersion, vertical currents, and inertial buoyancy motion on oil rise velocities. We present a plausible model scenario, where some oil is trapped at depth through shear emulsification due to the particular conditions of the Macondo blowout. Assuming effective mixing of the synthetic dispersants at the wellhead, the model indicates that the submerged oil mass is shifted deeper, decreasing only marginally the amount of oil surfacing. In this scenario, the oil rises slowly to the surface or stays immersed. This suggests that other mechanisms may have contributed to the rapid surfacing of oil-gas mixture observed initially. The study also reveals local topographic and hydrodynamic processes that influence the oil transport in eddies and multiple layers. This numerical approach provides novel insights on oil transport mechanisms from deep blowouts and on gauging the subsea use of synthetic dispersant in mitigating coastal damage.
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Affiliation(s)
- Claire B Paris
- Rosenstiel School of Marine and Atmospheric Science, University of Miami, 4600 Rickenbacker Causeway, Miami, Florida 33149-1098, USA.
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Li WC, Wang DP, Li LJ, Zhu WM, Zeng YJ. Adenovirus-mediated bone morphogenetic protein-2 gene transfection of bone marrow mesenchymal stem cells combined with nano-hydroxyapatite to construct bone graft material in vitro. Artif Cells Nanomed Biotechnol 2012; 41:103-8. [PMID: 23030243 DOI: 10.3109/10731199.2012.715088] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
To study the adhesion, proliferation and expression of bone marrow mesenchymal stem cells (BMSCs) on nano-hydroxyapatite (Nano-HA) bone graft material after transfection of adenovirus-mediated human bone morphogenetic protein-2 expression vector (Ad-BMP-2). BMSCs were transfected using Ad-BMP-2. Immunohistochemistry and Western blot were used to detect BMP-2 expression in transfected cells. After transfection, BMP-2 protein was highly expressed in BMSCs; MTT test assay showed that the Nano-HA bone graft material could not inhibit in vitro proliferation of BMSCs. Ad-BMP-2-transfected BMSCs are well biocompatible with Nano-HA bone graft material, the transfected cells in material can secrete BMP-2 stably for a long time.
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Affiliation(s)
- W C Li
- Department of Trauma Orthopedics, Second People's Hospital of Shenzhen, Guangdong Province, P. R. China
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Liao YF, Chang CC, Wang DP, Tseng BH, Liao YD, Lin CH. A novel approach for normalizing the photoreflectance spectrum by using polymer-dispersed liquid crystal. Rev Sci Instrum 2012; 83:103904. [PMID: 23126779 DOI: 10.1063/1.4757399] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
This study developed a novel type of normalization procedure for modulation reflectance spectroscopy experiments to obtain the relative change in the reflectance spectrum, ΔR/R. This technique uses a polymer-dispersed liquid crystal to ensure that the dc component of the signal from the detector remained constant by varying the intensity of the light striking the sample. This method is particularly useful for photoreflectance measurement, which may encounter background problems because of scattered pump light and/or photoluminescence. It does not require a change in the gain of the detector or the use of a variable neutral density filter mounted on a servo-motor.
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Affiliation(s)
- Y F Liao
- Department of Physics, National Sun Yat-Sen University, Kaohsiung 804, Taiwan
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Hu AB, He XS, Tai Q, Zhu XF, Ma Y, Wang DP, Wang GD, Wu LW, Ju WQ, Huang JF. [Efficacy and safety of sorafenib in the prevention and treatment of hepatocellular carcinoma recurrences after liver transplantation]. Zhonghua Yi Xue Za Zhi 2012; 92:1264-1267. [PMID: 22883065] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
OBJECTIVE To evaluate the efficacy and safety of sorafenib in the prevention and treatment of hepatocellular carcinoma (HCC) relapse after liver transplantation. METHODS A retrospective cohort study was performed to assess the efficacy and safety of sorafenib for HCC. Forty-four patients who underwent liver transplant for HCC beyond Milan criteria form July 2007 to May 2010 were included study group (sorafenib, n = 22) and control group (without sorafenib, n = 22). The primary endpoints of the study were disease-free survival (DFS), overall survival (OS). Secondary outcomes included the rates of acute rejection and graft survival. RESULTS The clinical data of 44 patients were completely collected. There were significantly differences between sorafenib group and control group in 1-year DFS (81.8% (n = 18) vs 63.6% (n = 14), P < 0.05) and OS (90.9% (n = 20) vs 72.7% (n = 16), P < 0.05) respectively. The acute rejection rates in Sorafenib were 13.6% (3/22), compared with 18.2% (4/22) in control group (P = 0.524) and 1-year graft survival in Sorafenib group were 86.4% (19/22), compared with 72.7% (16/22) in control group (P = 0.086). The overall incidence of treatment-related adverse events was 68.1% (n = 15) in sorafenib group and 31.8% (n = 7) in the control group (P < 0.01). Adverse events that were reported for patients receiving sorafenib were predominantly grade 1 or 2 in severity including diarrhea (45.5%, n = 10), liver dysfunction (40.9%, n = 9), hand-foot skin reaction (31.8%, n = 7) and pains of head and four limbs (22.7%, n = 5). Two patients with grade 3 adverse events in study group were stopped continuing to use the sorafenib. Three patients with the dose of 400 mg twice daily and 17 patients with the dose reduction of sorafenib continued to the study endpoint. CONCLUSION Patients with HCC undergoing liver transplantation could get the benefits of Sorafenib in reducing the incidence of tumor recurrence and extending disease-free and overall survival time.
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Affiliation(s)
- An-Bin Hu
- Organ Transplantation Center, First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
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Wu LW, Guo ZY, Tai Q, Ju WQ, Wang DP, Hu AB, Zhu XF, He XS. Steroid elimination within 24 hours after orthotopic liver transplantation: effectiveness and tolerability. Hepatobiliary Pancreat Dis Int 2012; 11:137-42. [PMID: 22484580 DOI: 10.1016/s1499-3872(12)60138-6] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/05/2023]
Abstract
BACKGROUND Steroids have been the mainstay of immunosuppressive regimen in liver transplantation. However, the use of steroids is associated with various post-transplant complications. This study evaluated the efficacy and safety of reduced immunosuppressive regimen with steroids (steroid elimination within 24 hours post-transplant) in a cohort of Chinese liver transplant recipients. METHODS Seventy-six patients in line with the selection criteria were enrolled in this prospective study. All patients received anti-IL-2 receptor antibody induction and tacrolimus-based maintenance therapy. The recipients were divided into two groups according to the duration of steroid use: 40 transplant in a 3-month withdrawal group and the remaining 36 in a 24-hour elimination group. Recipient survival, post-operative infections, biopsy-proven acute rejection and steroid-resistant acute rejection, non-healing wound, recurrence of hepatitis B virus (HBV) and hepatocellular carcinoma (HCC), de novo diabetes, hyperlipidemia and hypertension were assessed in the two groups. RESULTS There was no significant difference in patient survival, incidence of acute rejection episodes and hyperlipidemia, and recurrence of HBV and HCC between the two groups. However, the incidence rates of post-transplant infection, non-healing wound, de novo diabetes and hypertension were significantly lower in the 24-hour elimination group than in the 3-month withdrawal group (all P values <0.05). CONCLUSION Under anti-IL-2 receptor antibody induction and tacrolimus-based maintainance, steroid elimination within 24 hours post-transplant is associated with reduced steroid-related complications without increasing the risk of rejection.
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Affiliation(s)
- Lin-Wei Wu
- Organ Transplantation Center, First Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510080, China
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Sun WP, He XH, Yu LQ, Wang DP, Qin ZH, Fang Q, Wang J. An improved polymerase chain reaction method for genetic testing of spinocerebellar ataxia type 3. Genetika 2011; 47:1416-1419. [PMID: 22232931] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
The development of a reliable PCR assay for genetic testing of spinocerebellar ataxia type 3. Touchdown PCR conditions were tested and different primer sets were evaluated with genomic DNA from blood sample of patients suffering from spinocerebellar ataxia type 3 (SCA3). An improved PCR assay was developed with a new set of primers and using the optimized touchdown PCR protocol. This new assay had been successfully employed in the screening of one identificated SCA3 family. Results from the present study document a simple and reliable PCR assay for genetic testing of SCA3. Strategies used in the present study may find applications in the optimization of PCR assay for triplet expansion with GC rich in the sequence context.
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Affiliation(s)
- W P Sun
- Department of Pharmacology and Laboratory of Aging and Nervous Diseases, Soochow University School of Medicine, Suzhou 215123, China
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Ju WQ, Zhou J, He XS, Wang DP, Wu LW, Guo ZY, Zhu XF, Huang JF. [Clinical efficacies of ABO-incompatible adult liver transplantation]. Zhonghua Yi Xue Za Zhi 2011; 91:2558-2560. [PMID: 22321886] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
OBJECTIVE To evaluate the efficacy and safety of ABO-incompatible liver transplantation in adult patients with fulminant hepatitis B. METHODS The clinical data of 97 cases of adult liver transplantation for fulminant hepatitis B were retrospectively analyzed. The patients were grouped as ABO-identical (ABO-Id, n = 58), ABO-compatible (ABO-C, n = 19) and ABO-incompatible (ABO-In, n = 20). The rates of rejection, infection, biliary tract complications, vascular complications, and patient and graft survivals were compared among 3 groups. RESULTS The 3-month, 1-year and 3-year graft survival rates were 87.9%/77.6%/65.3% in ABO-Id group, 84.2%/73.7%/66.5% in ABO-C group and 50.0%/35.0%/33.3% in ABO-In group respectively. There were significant differences between ABO-Id and ABO-In (P < 0.05). The incidences of rejection, infection, vascular complications and biliary tract complications were 8.6%, 20.7%, 3.4% and 6.9% in ABO-Id group, 35%, 60%, 20% and 30% in ABO-In group (P < 0.05) and 10.5%, 26.3%, 5.3% and 10.5% respectively in ABO-C group (P > 0.05). CONCLUSION ABO-C liver transplantation is an important therapeutic option in adult patients with acute liver failure awaiting an emergency procedure. ABO-In transplantation can be used only for life-rescuing in patients with fulminant hepatitis since it is associated with a higher risk of rejection, infection, vascular thrombosis, ischemic bile duct complications and poor patient and graft survival.
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Affiliation(s)
- Wei-Qiang Ju
- Organ Transplantation Center, First Affiliated Hospital, Sun Yat-Sen University, Guangzhou 510080, China
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Ju WQ, Wu ZP, He XS, Wu LW, Tao Q, Wang DP, Zhu XF, Huang JF. [Effects of ischemic precondition on the content of cholesterol in mitochondria and cytochrome c expression in hepatocytes following cold preservation in rats]. Zhonghua Gan Zang Bing Za Zhi 2011; 19:473-474. [PMID: 22053384] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Affiliation(s)
- Wei-Qiang Ju
- Organ Transplantation Center, First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China.
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Tang J, Wang DP, Ju WQ, Wu LW, Tai Q, Ma Y, Wang GD, Zhu XF, He XS. [Analysis on treatment outcomes in five patients with combined en bloc liver and pancreas transplantation]. Zhonghua Wei Chang Wai Ke Za Zhi 2011; 14:343-346. [PMID: 21614688] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
OBJECTIVE To summarize the treatment outcomes after combined en bloc liver and pancreas transplantation. METHODS Five patients with end-stage liver disease and type 2 diabetes mellitus received combined en bloc liver and pancreas transplantation after hepatectomy. RESULTS Five operations were performed successfully. The operative time ranged from 9 to 16 hours and blood loss from 1600 to 3000 ml. Postoperatively, one patients developed pulmonary infection, one died of graft-versus-host disease(GVHD), and one experienced acute renal failure. No intestinal fistula, anastomotic leakage, biliary complications, chronic and acute rejection and pancreatitis were seen. Liver function index including alanine aminotransferase, aspartate aminotransferase and total bilirubin returned to normal levels a week after surgery, while levels of C peptide and blood glucose resumed within 1 to 2 weeks. Apart from 1 case died of GVHD, the other 4 maintained normal liver function during the follow up ranging from 2 to 23 months and no insulin was required for the diabetes. CONCLUSION Combined en bloc liver and pancreas transplantation is technically feasible and an effective treatment for multi-organ diseases.
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Affiliation(s)
- Jue Tang
- Organ Transplant Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China
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41
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Zhou J, Ju WQ, He XS, Wang DP, Zhu XF, Wu LW, Tai Q, Ma Y, Hu AB, Wang GD, Huang JF. [Effect of Campath-1H induction on immunosuppression in small intestine transplantation]. Zhonghua Wei Chang Wai Ke Za Zhi 2011; 14:199-201. [PMID: 21442484] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
OBJECTIVE To investigate the effect of Campath-1H induction on immunosuppression in small intestine transplantation. METHODS Clinical data of a patient who underwent small intestine transplantation were retrospectively summarized. RESULTS Intraoperative Campath-1H induction by intravenous injection was administered. Triple immunosuppression(FK506, MMF and methylprednisolone) was used postoperatively. The lymphocyte and leukocyte decreased significantly following Campath-1H induction, and returned to normal after adjusting the dose of immunosuppressant and use of colony stimulating factor. There were no acute rejection, graft versus host disease, or severe infection during the immediate postoperative period. The patient recovered and discharged. CONCLUSION Intraoperative Campath-1H induction and postoperative triple immunosuppression using FK506, MMF, and methylprednisolone may prevent rejection and graft versus host disease in the early stage after small intestine transplantation.
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Affiliation(s)
- Jian Zhou
- Organ Transplantation Center, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China.
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Wang DP, Tang J, He XS, Zhu XF, Ju WQ, Wu LW, Ma Y, Wang GD, Hu AB, Tai Q. [Clinical analysis on multivisceral transplantation]. Zhonghua Wai Ke Za Zhi 2010; 48:1800-1804. [PMID: 21211385] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
OBJECTIVE To assess the indication, surgical and post-operative complications of the multivisceral transplantation. METHODS The post-transplant complications of 8 patients who underwent multivisceral transplantation between May 2004 and May 2010 were analyzed. There were 7 male and 1 female, aged from 28 to 65 years. Five patients who suffered from non-resectable advanced upper abdominal malignancy experienced the liver, stomach, spleen, pancreas, duodenum, omentum and variable amounts of the colon resection, and then underwent standard multivisceral transplantation (included liver, stomach, pancreaticoduodenal and small bowel). After underwent hepatectomy while retaining the native pancreas and entire gastrointestinal, three recipients with end-stage liver cirrhosis and type 2 insulin-dependent diabetes mellitus (IDDM) was performed combined en bloc liver/pancreaticoduodenal transplantation. RESULTS Since the third day post-operation, all recipients no longer needed exogenous insulin and had normal blood glucose concentrations. Two weeks after transplantation, their liver function almost became normal. For the 5 recipients who suffered abdominal malignancy, the longest survival period was 326 days. Cause of death are recurrent tumor (n = 2), multiple organ failure (n = 3). All the 5 patients experienced infection. For 3 patients suffered cirrhosis and IDDM, the longest survival was over 18 month. Excepting the case 8 died of graft versus host disease, all were still living without apparently post-transplant complication. CONCLUSIONS Multivisceral transplantation is an alternative in the treatment of the patients with benign massive abdominal pathologies. Careful patient selection and technical modification are crucial to improve the outcome of these patients.
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Affiliation(s)
- Dong-Ping Wang
- Organ Transplant Center of the First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
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Ma Y, He XS, Zhu XF, Wang GD, Wang DP, Hu AB, Ju WQ, Wu LW, Tai Q. [Etiology and management of postoperative gastrointestinal bleeding after orthotopic liver transplantation]. Zhonghua Wei Chang Wai Ke Za Zhi 2010; 13:26-28. [PMID: 20099156] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
OBJECTIVE To investigate the causes and treatment of postoperative gastrointestinal bleeding after orthotopic liver transplantation (OLT). METHODS Clinical data of 776 patients after OLT between January 2000 and December 2006 were analyzed retrospectively.The experiences in diagnosis and treatment of postoperative gastrointestinal bleeding after OLT were reviewed. RESULTS Gastrointestinal bleeding occurred in 18 patients (2.3%) after OLT, among whom 8 (44.5%) were from peptic ulcer, 3 (16.7%) from gastric and esophageal varices, 3 (16.7%) from gastroduodenitis, 3 (16.7%) from hemobilia, and 1 (5.6%) had diverticular bleeding in the jejunum. These 18 patients with gastrointestinal bleeding were managed with conservative treatment, endoscopic treatment, radiological interventional embolism,or exploratory laparotomy. Five patients died of gastrointestinal bleeding and the gastrointestinal bleeding-related mortality rate was 27.8%. After a mean follow up of 3.5 years, only 1 patient died of recurrence of hepatic cellular carcinoma while others survived disease-free. CONCLUSIONS Gastrointestinal bleeding may occur from different sites after OLT and the mortality is high. Prompt identification of the source of bleeding and correct management are required to improve the prognosis.
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Affiliation(s)
- Yi Ma
- Departmentment of Transplantation Surgery, The First Affiliated Hospital, Sun Yat-sen University, Guangzhou 510080, China.
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Pan HB, Zhao XL, Zhang X, Zhang KB, Li LC, Li ZY, Lam WM, Lu WW, Wang DP, Huang WH, Lin KL, Chang J. Strontium borate glass: potential biomaterial for bone regeneration. J R Soc Interface 2009; 7:1025-31. [PMID: 20031984 DOI: 10.1098/rsif.2009.0504] [Citation(s) in RCA: 113] [Impact Index Per Article: 7.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022] Open
Abstract
Boron plays important roles in many life processes including embryogenesis, bone growth and maintenance, immune function and psychomotor skills. Thus, the delivery of boron by the degradation of borate glass is of special interest in biomedical applications. However, the cytotoxicity of borate glass which arises with the rapid release of boron has to be carefully considered. In this study, it was found that the incorporation of strontium into borate glass can not only moderate the rapid release of boron, but also induce the adhesion of osteoblast-like cells, SaOS-2, thus significantly increasing the cyto-compatibility of borate glass. The formation of multilayers of apatite with porous structure indicates that complete degradation is optimistic, and the spread of SaOS-2 covered by apatite to form a sandwich structure may induce bone-like tissue formation at earlier stages. Therefore, such novel strontium-incorporated borosilicate may act as a new generation of biomaterial for bone regeneration, which not only renders boron as a nutritious element for bone health, but also delivers strontium to stimulate formation of new bones.
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Affiliation(s)
- H B Pan
- Department of Orthopeadics & Traumatology, The University of Hong Kong, 21 Sassoon Road, Pokfulam, Hong Kong
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Zhang X, Wang DP, Jia YB, Lu XB, Wang H, Sun LC. Asymmetric epoxidation of chromenes catalyzed by chiral pyrrolidine SalenMn(III) complexes with an anchored functional group. Appl Organomet Chem 2008. [DOI: 10.1002/aoc.1450] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Guo ZY, He XS, Wu LW, Zhu XF, Ju WQ, Wang DP, You S, Ma Y, Wang GD, Huang JF. Graft-verse-host disease after liver transplantation: A report of two cases and review of literature. World J Gastroenterol 2008; 14:974-9. [PMID: 18240363 PMCID: PMC2687072 DOI: 10.3748/wjg.14.974] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/06/2023] Open
Abstract
Graft-verse-host disease (GVHD) is an uncommon fatal complication following liver transplantation (LTx). In mainland China, only six cases have been reported with a morbidity rate up to 1%-2%. Definitive diagnosis was achieved by molecular techniques (HLA typing or PCR-STR) in only two cases and the remaining cases were diagnosed based on typical clinical features with exclusion of other possible causes. All patients died of septic shock or multiple organ failure even after administration of increased corticosteroids and supportive therapy, and reduced immunosuppressive agents. In our center, two cases of GVHD were found among 128 (1.56%) patients. One case was diagnosed by detecting lymphocyte macrochimerism through DNA-STR. Both of them died even after aggressive treatment. In China, the incidence of GVHD is similar to that reported by foreign centers except for an extremely bad prognosis. Rapid diagnosis is crucial for a better prognosis. In China, only 37.5% of cases are diagnosed by molecular methods. We recommend detecting lymphocyte macrochimerism through DNA-STR to get a rapid diagnosis, and interleukin 2-receptor antibody (basiliximab or daclizumab) therapy seems to be a good choice for the disease.
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You S, He XS, Hu AB, Xiong J, Wu LW, Wang DP, Wang GD, Ma Y, Ju WQ, Huang JF. [The analysis of portal vein thrombosis following orthotopic liver transplantation]. Zhonghua Wai Ke Za Zhi 2008; 46:176-178. [PMID: 18683711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
OBJECTIVE To investigate and summarize the experience in clinical presentation, diagnosis and treatment of portal vein thrombosis after orthotopic liver transplantation (OLT). METHODS The clinical data of 402 patients who underwent OLT from January 2003 to February 2007 were reviewed. A retrospective study was performed on etiology, prognosis and treatment in 9 cases of portal vein thrombosis after OLT. RESULTS All of the 9 cases received anticoagulant and antiaggregation therapy, within whom one underwent percutaneous transluminal angioplasty and stent placement, one underwent retransplantation after failure of thrombolysis therapy, and one received surgical embolectomy. Six patients died of multiple organ failure on 9th, 30th, 34th, 40th, 48th, 6 2nd days, respectively, while 3 patients survived. CONCLUSIONS The major risk factors of portal vein thrombosis after OLT were pathological changes in portal vein, abnormal blood stream dynamics, hypercoagulable status and improper surgical technique. Prophylactic intervention to patients with high risk factors, early diagnosis and aggressive comprehensive therapy on portal vein thrombosis patients are essential to improve prognosis.
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Affiliation(s)
- Shen You
- Organ Transplantation Center, First Affiliated Hospital of Sun Yat-Sen University, Guangzhou 510080, China
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Ma Y, He XS, Zhu XF, Wang GD, Wang DP, Ju WQ, Wu LW, Hu AB, Tai Q. [The etiology and management of postoperative hyperbilirubinemia after orthotopic liver transplantation]. Zhonghua Gan Zang Bing Za Zhi 2008; 16:117-120. [PMID: 18304428] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
OBJECTIVE To investigate the causes and treatment of postoperative hyperbilirubinemia after orthotopic liver transplantation. METHODS Clinical data of 368 cases of orthotopic liver transplantation patients from the First Affiliated Hospital of Sun Yat-sen University between 2004 and 2005 were analyzed retrospectively. RESULTS Three hundred and sixty-eight patients experienced 396 incidents of hyperbilirubinemia, including 183 incidents of preoperative hyperbilirubinemia (46.2%), 46 incidents of ischemia-reperfusion injury (11.6%), 36 incidents of acute rejection (9.1%), 78 incidents of biliary complications (19.7%), 24 incidents of blood vessel complications (6.1%), 23 incidents of recurrence of the primary disease (5.8%) and 6 incidents of tacrolimus (FK506) toxicity (1.5%). The comprehensive management targeted to the etiology and symptoms were applied to all patients with hyperbilirubinemia. CONCLUSION Hyperbilirubinemia is a common clinical manifestation after liver transplantation with multiple and complicated causes. The key point for successful treatment is to identify the causes. To reach the aim of treatment and obtain long-term survival of the recipients, it is very important to make a correct diagnosis and give reasonable therapeutic regimens as soon as possible.
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Affiliation(s)
- Yi Ma
- Department of Transplantation Surgery, First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China.
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Ma Y, He XS, Zhu XF, Wang GD, Wang DP, Ju WQ, Wu LW, Hu AB, Tai Q. [Prophylaxis and management of biliary complications after orthotopic liver transplantation]. Zhonghua Yi Xue Za Zhi 2008; 88:105-107. [PMID: 18353215] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/26/2023]
Abstract
OBJECTIVE To investigate the risk factors of biliary complications after orthotopic liver transplantation (OLTx) and the relevant prevention and management strategies. METHODS The clinical data of 368 patients undergoing allograft orthotopic liver transplantation, 282 males and 86 females, aged 47.5 (8 - 73), were collected and analyzed retrospectively. RESULTS Of the 368 OLTx patients, 36 (9.8%) experienced biliary complications, including simple anastomosis biliary leakage (7 cases), biliary leakage due to injury and omission of accessory hepatic duct (1 case), anastomosis stricture (5 cases), intrahepatic bile duct stricture (3 cases), bile duct stricture secondary to bile duct twist (1 case), calculus of intrahepatic duct (2 cases), bile duct stricture secondary to biliary leakage (2 cases), bile duct stricture combined with intrahepatic biloma (2 cases), bile duct stricture combined with biliary sludge (2 cases), biliary cast syndrome (5 cases), hemobilia (1 case), intrahepatic abscess (3 cases) and Oddi's sphincter dysfunction (2 cases). Among the 36 patients with biliary complications, 23 were cured by nonsurgical therapies; and 13 patients needed abdominal surgical interventions, including retransplantation in 7 cases. CONCLUSION Biliary complications after OLT are difficult to treat. Most of these complications can be cured conservatively, such as radiological intervention and endoscopic treatment. When the patients are unresponsive to nonsurgical therapies, or when they suffer from hepatic arterial embolism or arterial stricture simultaneously, surgical interventions, even retransplantation should be considered.
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Affiliation(s)
- Yi Ma
- Department of Transplantation Surgery, First Affiliated Hospital of Sun Yat-sen University, Guangzhou 510080, China
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Wu LW, He XS, Zhu XF, Wang DP, Ju WQ, Tai Q, Huang JF. [OKT3 for recipients with steroid-resistant acute rejection after liver transplantation]. Zhonghua Gan Zang Bing Za Zhi 2007; 15:857-858. [PMID: 18073076] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Affiliation(s)
- Lin-Wei Wu
- Organ Transplantation Center, First Affiliated Hospital of Sun Yat-sen University, Guangzhou, 510080, China.
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