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Lv G, Wang GQ, Xia ZX, Wang HX, Liu N, Wei W, Huang YH, Zhang WW. Influences of blood lipids on the occurrence and prognosis of hemorrhagic transformation after acute cerebral infarction: a case-control study of 732 patients. Mil Med Res 2019; 6:2. [PMID: 30665465 PMCID: PMC6341695 DOI: 10.1186/s40779-019-0191-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/15/2018] [Accepted: 01/02/2019] [Indexed: 01/14/2023] Open
Abstract
BACKGROUND To study the influence of blood lipid levels on hemorrhagic transformation (HT) and prognosis after acute cerebral infarction (ACI). METHODS Patients with ACI within 72 h of symptoms onset between January 1st, 2015, and December 31st, 2016, were retrospectively analyzed. Patients were divided into group A (without HT) and group B (HT). The outcomes were assessed after 3 months of disease onset using the modified Rankin Scale (mRS). An mRS score of 0-2 points indicated excellent prognosis, and an mRS score of 3-6 points indicated poor prognosis. RESULTS A total of 732 patients conformed to the inclusion criteria, including 628 in group A and 104 in group B. The incidence of HT was 14.2%, and the median onset time was 2 d (interquartile range, 1-7 d). The percentages of patients with large infarct size and cortex involvement in group B were 80.8 and 79.8%, respectively, which were both significantly higher than those in group A (28.7 and 33.4%, respectively). The incidence rate of atrial fibrillation (AF) in group B was significantly higher than that in group A (39.4% vs. 13.9%, P < 0.001). The adjusted multivariate analysis results showed that large infarct size, cortex involvement and AF were independent risk factors of HT, while total cholesterol (TC) was a protective factor of HT (OR = 0.359, 95% CI 0.136-0.944, P = 0.038). With every 1 mmol/L reduction in normal TC levels, the risk of HT increased by 64.1%. The mortality and morbidity at 3 months in group B (21.2 and 76.7%, respectively) were both significantly higher than those in group A (8.0 and 42.8%, respectively). The adjusted multivariate analysis results showed that large infarct size (OR = 12.178, 95% CI 5.390-27.516, P < 0.001) was an independent risk factor of long-term unfavorable outcomes, whereas low-density lipoprotein cholesterol (LDL-C) was a protective factor (OR = 0.538, 95% CI 0.300-0.964, P = 0.037). With every 1 mmol/L reduction in normal LDL-C levels, the risk of an unfavorable outcome increased by 46.2%. Major therapies, including intravenous recombinant human tissue plasminogen activator (rTPA), intensive lipid-lowering statins and anti-platelets, were not significantly related to either HT or long-term, post-ACI poor prognosis. CONCLUSION For patients with large infarct sizes, especially those with cortex involvement, AF, or lower levels of TC, the risk of HT might increase after ACI. The risk of a long-term unfavorable outcome in these patients might increase with a reduction in LDL-C.
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Affiliation(s)
- Gang Lv
- Department of General Surgery, 309 Hospital of Chinese People's Liberation Army, Beijing, 100091, China
| | - Guo-Qiang Wang
- Department of Neurology, Chinese PLA Army General Hospital, Beijing, 100700, China.
| | - Zhen-Xi Xia
- Department of Neurology, Chinese PLA Army General Hospital, Beijing, 100700, China
| | - Hai-Xia Wang
- Department of Neurology, Chinese PLA Army General Hospital, Beijing, 100700, China
| | - Nan Liu
- Department of Neurology, Chinese PLA Army General Hospital, Beijing, 100700, China
| | - Wei Wei
- Department of Neurology, Chinese PLA Army General Hospital, Beijing, 100700, China
| | - Yong-Hua Huang
- Department of Neurology, Chinese PLA Army General Hospital, Beijing, 100700, China
| | - Wei-Wei Zhang
- Department of Neurology, Chinese PLA Army General Hospital, Beijing, 100700, China
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Sun W, Yi CR, Wang BZ, Zhang WW, Sanders BC, Xu XT, Wang ZY, Schmiedmayer J, Deng Y, Liu XJ, Chen S, Pan JW. Uncover Topology by Quantum Quench Dynamics. Phys Rev Lett 2018; 121:250403. [PMID: 30608809 DOI: 10.1103/physrevlett.121.250403] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/10/2018] [Revised: 08/21/2018] [Indexed: 05/22/2023]
Abstract
Topological quantum states are characterized by nonlocal invariants. We present a new dynamical approach for ultracold-atom systems to uncover their band topology, and we provide solid evidence to demonstrate its experimental advantages. After quenching a two-dimensional (2D) Chern band, realized in an ultracold ^{87}Rb gas from a trivial to a topological parameter regime, we observe an emerging ring structure in the spin dynamics during the unitary evolution, which uniquely corresponds to the Chern number for the postquench band. By extracting 2D bulk topology from the 1D ring pattern, our scheme displays simplicity and is insensitive to perturbations. This insensitivity enables a high-precision determination of the full phase diagram for the system's band topology.
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Affiliation(s)
- Wei Sun
- Shanghai Branch, National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Shanghai 201315, China
- Chinese Academy of Sciences Center for Excellence: Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei Anhui 230326, China
- CAS-Alibaba Lab for Quantum Computation, Shanghai 201315, China
| | - Chang-Rui Yi
- Shanghai Branch, National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Shanghai 201315, China
- Chinese Academy of Sciences Center for Excellence: Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei Anhui 230326, China
- CAS-Alibaba Lab for Quantum Computation, Shanghai 201315, China
| | - Bao-Zong Wang
- Shanghai Branch, National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Shanghai 201315, China
- Chinese Academy of Sciences Center for Excellence: Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei Anhui 230326, China
- International Center for Quantum Materials, School of Physics, Peking University, Beijing 100871, China
- Collaborative Innovation Center of Quantum Matter, Beijing 100871, China
| | - Wei-Wei Zhang
- Centre for Engineered Quantum Systems, School of Physics, The University of Sydney, Sydney, New South Wales 2006, Australia
| | - Barry C Sanders
- Shanghai Branch, National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Shanghai 201315, China
- Institute for Quantum Science and Technology, University of Calgary, Calgary, Alberta T2N 1N4, Canada
- Program in Quantum Information Science, Canadian Institute for Advanced Research, Toronto, Ontario M5G 1Z8, Canada
| | - Xiao-Tian Xu
- Shanghai Branch, National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Shanghai 201315, China
- Chinese Academy of Sciences Center for Excellence: Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei Anhui 230326, China
- CAS-Alibaba Lab for Quantum Computation, Shanghai 201315, China
| | - Zong-Yao Wang
- Shanghai Branch, National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Shanghai 201315, China
- Chinese Academy of Sciences Center for Excellence: Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei Anhui 230326, China
- CAS-Alibaba Lab for Quantum Computation, Shanghai 201315, China
| | - Joerg Schmiedmayer
- Vienna Center for Quantum Science and Technology, Atominstitut, TU Wien, Stadionallee 2, 1020 Vienna, Austria
| | - Youjin Deng
- Shanghai Branch, National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Shanghai 201315, China
- Chinese Academy of Sciences Center for Excellence: Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei Anhui 230326, China
- CAS-Alibaba Lab for Quantum Computation, Shanghai 201315, China
| | - Xiong-Jun Liu
- International Center for Quantum Materials, School of Physics, Peking University, Beijing 100871, China
- Collaborative Innovation Center of Quantum Matter, Beijing 100871, China
| | - Shuai Chen
- Shanghai Branch, National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Shanghai 201315, China
- Chinese Academy of Sciences Center for Excellence: Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei Anhui 230326, China
- CAS-Alibaba Lab for Quantum Computation, Shanghai 201315, China
| | - Jian-Wei Pan
- Shanghai Branch, National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Shanghai 201315, China
- Chinese Academy of Sciences Center for Excellence: Quantum Information and Quantum Physics, University of Science and Technology of China, Hefei Anhui 230326, China
- CAS-Alibaba Lab for Quantum Computation, Shanghai 201315, China
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Jiang YQ, Wu K, Zhang Q, Li KQ, Li YY, Xin PY, Zhang WW, Guo HM. A dual-responsive hyperbranched supramolecular polymer constructed by cooperative host-guest recognition and hydrogen-bond interactions. Chem Commun (Camb) 2018; 54:13821-13824. [PMID: 30462109 DOI: 10.1039/c8cc08226j] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
A homotritopic pillar[5]arene (H3) containing adenine units was synthesized and employed to interact with a uracil derivative (6-(2,4-dioxo-3,4-dihydropyrimidin-1(2H)-yl)hexanenitrile, G) to form a hyperbranched supramolecular polymer. The hyperbranched supramolecular polymer showed a dual stimulus response both to heat and acid/base. The cooperative host-guest binding and hydrogen-bond interactions play a key role in the supramolecular polymerization.
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Affiliation(s)
- Yu-Qin Jiang
- Henan Key Laboratory of Organic Functional Molecule and Drug Innovation, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering, Henan Normal University, Xinxiang, Henan 453007, China.
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Song HL, Jiang LJ, Jiang LZ, Zhang WW, Wang X, Yan ZH. [The MRI analysis of 220 cases of placenta previa complicated with placenta accrete or not]. Zhonghua Yi Xue Za Zhi 2018; 98:3692-3696. [PMID: 30526781 DOI: 10.3760/cma.j.issn.0376-2491.2018.45.012] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the diagnostic value of MRI for placenta previa complicated with placenta accreta or not. Methods: A total of 220 placenta previa patients were diagnosed by prenatal ultrasound and MRI in The Second Affiliated Hospital of Wenzhou Medical University from May 2014 to May 2017.The MRI images of 220 placenta previa patients suspicious of placenta previa were interpreted by two radiologists who majored on gynecological radiology. The sensitivity, specificity, accuracy, positive predictive value and negative predictive value of two radiologists in diagnosis of placenta accreta were calculated respectively. Kappa test were used to verify the consistency between two doctors, as well as their MRI diagnosis and pathological results. The diagnostic value of MRI and pathological were assessed by Chi-square test and receiver operating characteristic (ROC)curve. Results: The 220 patients were all confirmed with placenta previa by surgical pathology.Out of 220, 71 cases were diagnosed as placenta accreta, and 149 cases were diagnosed without placenta accreta. The sensitivity, specificity, accuracy, positive predictive value and negative predictive value with physician A and physician B were 90.1%/84.5%, 88.6%/89.9%, 89.1%/88.2%, 79.0%/80.0% and 95.0%/92.4%, respectively.The consistency between MRI diagnosis and pathological results was excellent in physician A (κ=0.759), and good in physician B (κ=0.734). However, the sensitivity, specificity and accuracy of diagnosis between two physicians had no significant difference (all P>0.05). The area under the curve (AUC) of ROC in physician A and B were 0.858 and 0.847 (P=0.980). Conclusion: MRI is feasible for patients with placenta previa, as the sensitivity, specificity and accuracy of MRI are high in assessing whether placenta previa complicated with placenta accreta or not.
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Affiliation(s)
- H L Song
- Department of Radiology, the Second Affiliated Hospital of Wenzhou Medical University, Wenzhou 325027, China
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Chu DG, Su YC, Li YN, Zhang WW, Lyu TM, Wang LD. [Clinical applications of transcrestal around detached sinus floor elevation technique using osteotomes and sequential drills with stops]. Zhonghua Kou Qiang Yi Xue Za Zhi 2018; 53:645-647. [PMID: 30196629 DOI: 10.3760/cma.j.issn.1002-0098.2018.09.016] [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
Sinus floor elevation was needed in 11 patients having 15 implant sites with the residual bone height (RBH) was less than 10 mm in the posterior maxillary region from Feb to May 2017. The RBH ranged from 3.10 to 8.34 mm [averaged (6.18±1.60) mm]. RBH<6 mm was observed in 40% implant sites (6 implant sites) and RBH≥6 mm was observed in 60% implant sites (9 implant sites). The thickness of the sinus floor membrane correspond to the implant site measured by cone beam CT (CBCT) ranged from 0.50 to 4.24 mm [averaged (1.21±0.92) mm]. Sequential drills with stops were used to perforate the cortical bone of the sinus floor firstly, then the transcrestal around detached sinus floor elevation technique (TADSFET) was carried with osteotomes. Anorganic bovine bone was used as the augmentation material.Fifteen implants were placed in 15 implant sites. CBCT pictures showed that there was a smooth and continuous tent-shaped apophysis on each lifted site and no air fluid level was observed in the sinus immediately after operation. The mean elevated height of the 15 implant sites was (7.83±1.57) mm (ranged from 5.94 to 11.01 mm). The mean follow-up time was 7.91 months (7-10 months). The survival rate was 100% during the follow up period.
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Affiliation(s)
- D G Chu
- Departmant of Stomatology, ChuiYangLiu Hospital Affliated to Tsinghua University, Beijing 100022, China
| | - Y C Su
- Department of Stomatology, Peking Union Medical College Hospital, Peking Union Medical College, Chinese Academy of Medical Sciences, Beijing 100032, China
| | - Y N Li
- Departmant of Stomatology, ChuiYangLiu Hospital Affliated to Tsinghua University, Beijing 100022, China (Present address: Department of Stomatology, Yantai Stomatological Hospital Affiliated to Binzhou Medical College, Yantai Shandong 264000, China)
| | - W W Zhang
- Departmant of Stomatology, ChuiYangLiu Hospital Affliated to Tsinghua University, Beijing 100022, China (Present address: Department of Stomatology, Beijing Jingbei Jianyong Stomatological Hospital, Beijing 101400, China)
| | - T M Lyu
- Departmant of Stomatology, ChuiYangLiu Hospital Affliated to Tsinghua University, Beijing 100022, China
| | - L D Wang
- Departmant of Stomatology, ChuiYangLiu Hospital Affliated to Tsinghua University, Beijing 100022, China
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Zhang WW, Xu F, Wang D, Ye J, Cai SQ. Buyang Huanwu Decoction ameliorates ischemic stroke by modulating multiple targets with multiple components: In vitro evidences. Chin J Nat Med 2018; 16:194-202. [PMID: 29576055 DOI: 10.1016/s1875-5364(18)30047-5] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2017] [Indexed: 01/01/2023]
Abstract
Buyang Huanwu Decoction (BYHWD) is a well-known traditional Chinese medicine prescription which is used to treat ischaemic stroke and stroke-induced disabilities. However, the exact mechanism underlying BYHWD's amelioration of ischaemic stroke and its effective constituents remain unclear. The present study aimed to identify the effective constituents of BYHWD and to further explore its action mechanisms in the amelioration of ischaemic stroke by testing the activities of 15 absorbable chemical constituents of BYHWD with the same methods under the same conditions. The following actions of these 15 compounds were revealed: 1) Ferulic acid, calycosin, formononetin, astrapterocarpan-3-O-β-D-glucoside, paeonol, calycosin-7-O-β-D-glucoside, astraisoflavan-7-O-β-D-glucoside, ligustrazine, and propyl gallate significantly suppressed concanavalin A (Con A)-induced T lymphocyte proliferation; 2) Propyl gallate, calycosin-7-O-β-D-glucoside, paeonol, and ferulic acid markedly inhibited LPS-induced apoptosis in RAW264.7 cells; 3) Propyl gallate and formononetin significantly inhibited LPS-induced NO release; 4) Hydroxysafflor yellow A and inosine protected PC12 cells against the injuries caused by glutamate; and 5) Formononetin, astragaloside IV, astraisoflavan-7-O-β-D-glucoside, inosine, paeoniflorin, ononin, paeonol, propyl gallate, ligustrazine, and ferulic acid significantly suppressed the constriction of the thoracic aorta induced by KCl in rats. In conclusion, the results from the present study suggest that BYHWD exerts its ischaemic stroke ameliorating activities by modulating multiple targets with multiple components.
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Affiliation(s)
- Wei-Wei Zhang
- Department of Molecular and Cellular Pharmacology, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China; Department of Clinical Pharmacy, Beijing Tsinghua Changgung Hospital Medical Center, Tsinghua University, Beijing 102218, China
| | - Feng Xu
- State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing 100191, China
| | - Ding Wang
- Department of Molecular and Cellular Pharmacology, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China
| | - Jia Ye
- Department of Molecular and Cellular Pharmacology, School of Pharmaceutical Sciences, Peking University, Beijing 100191, China.
| | - Shao-Qing Cai
- State Key Laboratory of Natural and Biomimetic Drugs, Peking University, Beijing 100191, China.
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Zhu Y, Xu D, Zhang Z, Dong J, Zhou Y, Zhang WW, Hong L, Zhu WW. A new laboratory-based algorithm to predict microvascular invasion and survival in patients with hepatocellular carcinoma. Int J Surg 2018; 57:45-53. [PMID: 30075291 DOI: 10.1016/j.ijsu.2018.07.011] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/06/2018] [Revised: 07/24/2018] [Accepted: 07/26/2018] [Indexed: 02/07/2023]
Abstract
BACKGROUND Preoperative serum inflammatory markers have been correlated with survival outcomes after resection of hepatocellular carcinoma (HCC). Whether they can predict microvascular invasion (MVI) in HCC is still unknown. This study aimed to evaluate the association of inflammatory markers with MVI, and develop a simple and inexpensive preoperative prediction model for MVI. METHODS We developed a novel index using routine laboratory tests to predict MVI. The index was developed based on a study on patients with HCC, and validated in an internal cohort and another external cohort. The infiltration of CD8+ T cells in tumors was measured using immunohistochemistry. The prediction accuracy was evaluated with the area under the receiver operating characteristic curve (AUC). RESULTS There were 165 patients in the training cohort, 107 patients in the internal validation cohort and 80 patients in the external validation cohort. On multivariable analysis in the training cohort, alkaline phosphatase (ALP) and lymphocyte count were independent predictors of MVI. Thus, the ALP-to-lymphocyte ratio (ALR) was developed. The AUCs of the ALR for MVI were higher than the other conventional clinical indices. An optimal cutoff point for the ALR of 69.9 stratified HCC patients into the high (≥69.9) and low (<69.9) groups. An ALR ≥69.9 was significantly associated with worse overall and disease-free survival outcomes. The performance of ALR was validated in the internal and in external cohorts. The CD8+ T cell counts were significantly higher in HCC in the ALR<69.9 groups. CONCLUSION ALR was a simple, accurate and inexpensive alternative to predict MVI and an independent risk factor of prognosis for HCC patients. The dismal survival outcomes in patients with high ALR scores were related to decreased infiltrations of CD8+ T cells in tumors.
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Affiliation(s)
- Ying Zhu
- Department of General Surgery, Huashan Hospital, Fudan University, Shanghai 200040, China; Institutes of Cancer Metastasis, Fudan University, Shanghai 200040, China.
| | - Da Xu
- Department of General Surgery, Huashan Hospital, Fudan University, Shanghai 200040, China; Institutes of Cancer Metastasis, Fudan University, Shanghai 200040, China.
| | - Ze Zhang
- Department of General Surgery, Huashan Hospital, Fudan University, Shanghai 200040, China; Institutes of Cancer Metastasis, Fudan University, Shanghai 200040, China.
| | - Jian Dong
- Department of Hepatobiliary Surgery, The First Affiliated Hospital of Medical College, Xi'an Jiaotong University, Xi'an 710061, China; Institute of Advanced Surgical Technology and Engineering, The First Affiliated Hospital of Medical College, Xi'an Jiaotong University, Xi'an 710061, China.
| | - Yu Zhou
- Department of Infectious Disease, The Ruian People's Hospital, Wenzhou, Zhejiang, 325200, China.
| | - Wei-Wei Zhang
- Department of Infectious Disease, The Ruian People's Hospital, Wenzhou, Zhejiang, 325200, China.
| | - Liang Hong
- Department of Infectious Disease, The Ruian People's Hospital, Wenzhou, Zhejiang, 325200, China.
| | - Wen-Wei Zhu
- Department of General Surgery, Huashan Hospital, Fudan University, Shanghai 200040, China; Institutes of Cancer Metastasis, Fudan University, Shanghai 200040, China.
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Chen J, Chen KH, Wang LM, Zhang WW, Feng L, Dai HZ, He YN. High-dose HOOK effect in urinary DcR2 assay in patients with chronic kidney disease. Clin Biochem 2018; 58:32-36. [PMID: 29879421 DOI: 10.1016/j.clinbiochem.2018.06.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2018] [Accepted: 06/04/2018] [Indexed: 10/14/2022]
Abstract
BACKGROUND Urinary DcR2 (uDcR2) is a biomarker for the early detection the tubulointerstitial injury (TII) in patients with chronic kidney disease (CKD), but the high-dose hook effect may lead to falsely low or even negative results when using an enzyme-linked immunosorbent assay (ELISA). This study aimed to investigate if the high-dose hook effect exists with ELISA testing, and to uncover a potential approach for reducing this effect. METHODS 72 CKD patients were recruited and categorized into four groups based on TII scores. uDcR2 was measured in undiluted and serially diluted (two-, four-, eight- and 16-fold dilutions) urine using an ELISA kit. The results from the assay were normalized to urinary creatinine. We evaluated the correlation between uDcR2/cre levels at different dilutions and renal histological parameters. Receiver operating characteristic (ROC) curves were generated to examine the value of uDcR2/cre for predicting TII. RESULTS uDcR2/cre levels in the undiluted urine were significantly higher in patients with CKD than those in the control. However, higher TII scores did not yield higher levels of uDcR2/cre in the undiluted urine. After serial dilution, uDcR2/cre levels were highest with the four-fold dilution. A positive correlation was found between uDcR2/cre levels at different dilutions and TII scores, with the highest correlation coefficient and the largest AUC being observed at the four-fold dilution. CONCLUSIONS The high-dose hook effect was apparent during ELISA testing of uDcR2 in CKD patients, yet dilution of the urine samples neutralized this effect. However, the use of a four-fold dilution of urine for uDcR2/cre testing may eliminate the high-dose hook effect and make it possible to effectively monitor the severity of TII in CKD patients.
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Affiliation(s)
- Jia Chen
- Department of Nephrology, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - Ke-Hong Chen
- Department of Nephrology, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - Li-Ming Wang
- Department of Nephrology, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - Wei-Wei Zhang
- Department of Nephrology, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - Lei Feng
- Department of Nephrology, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - Huan-Zi Dai
- Department of Nephrology, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - Ya-Ni He
- Department of Nephrology, Daping Hospital, Army Medical University, Chongqing 400042, China.
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Song LC, Zhang LD, Zhang WW, Liu BB. Heterodinuclear Ni/M (M = Mo, W) Complexes Relevant to the Active Site of [NiFe]-Hydrogenases: Synthesis, Characterization, and Electrocatalytic H 2 Evolution. Organometallics 2018. [DOI: 10.1021/acs.organomet.8b00228] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/12/2022]
Affiliation(s)
- Li-Cheng Song
- Department of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
- Collaborative Innovation Center of Chemical Science and Engineering (Tianjin), Tianjin 300072, China
| | - Long-Duo Zhang
- Department of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Wei-Wei Zhang
- Department of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
| | - Bei-Bei Liu
- Department of Chemistry, State Key Laboratory of Elemento-Organic Chemistry, College of Chemistry, Nankai University, Tianjin 300071, China
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Zhang WW, Wang M, Wang AY, Yin XH, Feng ZZ, Hao GY. Elevated ozone concentration decreases whole-plant hydraulic conductance and disturbs water use regulation in soybean plants. Physiol Plant 2018; 163:183-195. [PMID: 29193125 DOI: 10.1111/ppl.12673] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/30/2017] [Revised: 10/30/2017] [Accepted: 11/25/2017] [Indexed: 06/07/2023]
Abstract
Elevated tropospheric ozone (O3 ) concentration has been shown to affect many aspects of plant performance including detrimental effects on leaf photosynthesis and plant growth. However, it is not known whether such changes are accompanied by concomitant responses in plant hydraulic architecture and water relations, which would have great implications for plant growth and survival in face of unfavorable water conditions. A soybean (Glycine max (L.) Merr.) cultivar commonly used in Northeast China was exposed to non-filtered air (NF, averaged 24.0 nl l-1 ) and elevated O3 concentrations (eO3 , 40 nl l-1 supplied with NF air) in six open-top chambers for 50 days. The eO3 treatment resulted in a significant decrease in whole-plant hydraulic conductance that is mainly attributable to the reduced hydraulic conductance of the root system and the leaflets, while stem and leaf petiole hydraulic conductance showed no significant response to eO3 . Stomatal conductance of plants grown under eO3 was lower during mid-morning but significantly higher at midday, which resulted in substantially more negative daily minimum water potentials. Moreover, excised leaves from the eO3 treated plants showed significantly higher rates of water loss, suggesting a lower ability to withhold water when water supply is impeded. Our results indicate that, besides the direct detrimental effects of eO3 on photosynthetic carbon assimilation, its influences on hydraulic architecture and water relations may also negatively affect O3 -sensitive crops by deteriorating the detrimental effects of unfavorable water conditions.
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Affiliation(s)
- Wei-Wei Zhang
- CAS Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China
| | - Miao Wang
- CAS Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China
| | - Ai-Ying Wang
- CAS Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Xiao-Han Yin
- CAS Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Zhao-Zhong Feng
- State Key Laboratory of Urban and Regional Ecology, Research Center for Eco-Environmental Sciences, Chinese Academy of Sciences, Beijing 100085, China
| | - Guang-You Hao
- CAS Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, China
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Jiang YQ, Wu K, Fan LM, Zhao JL, Yang YQ, Zhang WW, Xu GQ. Cu(OAc) 2·H 2O/NH 2OH·HCl/CH 3COONa: A Facile and Efficient Catalyst System for Copper-catalyzed Azide-Alkyne Click Reactions in Water. J CHIN CHEM SOC-TAIP 2018. [DOI: 10.1002/jccs.201700339] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
Affiliation(s)
- Yu-Qin Jiang
- Henan Engineering Laboratory of Chemical Pharmaceuticals & Biomedical Materials, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering; Henan Normal University; Xinxiang P. R. China
| | - Kai Wu
- Henan Engineering Laboratory of Chemical Pharmaceuticals & Biomedical Materials, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering; Henan Normal University; Xinxiang P. R. China
| | - Li-Ming Fan
- Henan Engineering Laboratory of Chemical Pharmaceuticals & Biomedical Materials, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering; Henan Normal University; Xinxiang P. R. China
| | - Jing-Lin Zhao
- Henan Engineering Laboratory of Chemical Pharmaceuticals & Biomedical Materials, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering; Henan Normal University; Xinxiang P. R. China
| | - Yu-Qing Yang
- Henan Engineering Laboratory of Chemical Pharmaceuticals & Biomedical Materials, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering; Henan Normal University; Xinxiang P. R. China
| | - Wei-Wei Zhang
- Henan Engineering Laboratory of Chemical Pharmaceuticals & Biomedical Materials, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering; Henan Normal University; Xinxiang P. R. China
| | - Gui-Qing Xu
- Henan Engineering Laboratory of Chemical Pharmaceuticals & Biomedical Materials, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering; Henan Normal University; Xinxiang P. R. China
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Wang NP, Erskine J, Zhang WW, Zheng RH, Zhang LH, Duron G, Gendreau J, Zhao ZQ. Recruitment of macrophages from the spleen contributes to myocardial fibrosis and hypertension induced by angiotensin II. J Renin Angiotensin Aldosterone Syst 2018; 18:1470320317706653. [PMID: 28490219 PMCID: PMC5843916 DOI: 10.1177/1470320317706653] [Citation(s) in RCA: 21] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/15/2022] Open
Abstract
INTRODUCTION The purpose of this study was to determine whether macrophages migrated from the spleen are associated with angiotensin II-induced cardiac fibrosis and hypertension. METHODS Sprague-Dawley rats were subjected to angiotensin II infusion in vehicle (500 ng/kg/min) for up to four weeks. In splenectomy, the spleen was removed before angiotensin II infusion. In the angiotensin II AT1 receptor blockade, telmisartan was administered by gastric gavage (10 mg/kg/day) during angiotensin II infusion. The heart and aorta were isolated for Western blot analysis and immunohistochemistry. RESULTS Angiotensin II infusion caused a significant reduction in the number of monocytes in the spleen through the AT1 receptor-activated monocyte chemoattractant protein-1. Comparison of angiotensin II infusion, splenectomy and telmisartan comparatively reduced the recruitment of macrophages into the heart. Associated with this change, transforming growth factor β1 expression and myofibroblast proliferation were inhibited, and Smad2/3 and collagen I/III were downregulated. Furthermore, interstitial/perivascular fibrosis was attenuated. These modifications occurred in coincidence with reduced blood pressure. At week 4, invasion of macrophages and myofibroblasts in the thoracic aorta was attenuated and expression of endothelial nitric oxide synthase was upregulated, along with a reduction in aortic fibrosis. CONCLUSIONS These results suggest that macrophages when recruited into the heart and aorta from the spleen potentially contribute to angiotensin II-induced cardiac fibrosis and hypertension.
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Affiliation(s)
- Ning-Ping Wang
- 1 Cardiovascular Research Laboratory, Mercer University School of Medicine, USA
| | - James Erskine
- 2 Department of Internal Medicine, Navicent Health, USA
| | - Wei-Wei Zhang
- 3 Department of Physiology, Shanxi Medical University, China
| | - Rong-Hua Zheng
- 3 Department of Physiology, Shanxi Medical University, China
| | - Li-Hui Zhang
- 1 Cardiovascular Research Laboratory, Mercer University School of Medicine, USA
| | - Garret Duron
- 1 Cardiovascular Research Laboratory, Mercer University School of Medicine, USA
| | - Julian Gendreau
- 1 Cardiovascular Research Laboratory, Mercer University School of Medicine, USA
| | - Zhi-Qing Zhao
- 1 Cardiovascular Research Laboratory, Mercer University School of Medicine, USA.,3 Department of Physiology, Shanxi Medical University, China
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Josephs S, Zhou J, Fang X, Alemany R, Balagué C, Dai Y, Ayares D, Prokopenko E, Lou YC, Sethi E, Hubert-Leslie D, Kennedy M, Ruiz L, Rockow-Magnone S, Zhang WW. Development And Application Of A Minimal-Adenoviral Vector System For Gene Therapy Of Hemophilia A. Thromb Haemost 2017. [DOI: 10.1055/s-0037-1615881] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/17/2022]
Abstract
IntroductionHemophilia A and B are the most common bleeding disorders caused by deficiencies of clotting factors VIII and IX, respectively, both of which are X-linked with a recessive heredity.1 Replacement of the deficient factors with frequent intravenous injections of plasma concentrates or recombinant proteins is the standard treatment for these diseases.2 Great efforts have been made for nearly a decade toward developing experimental gene therapy for these diseases and aiming at the development of a medical intervention that is more effective and convenient than the currently available replacement therapies.3 Hemophilia is a suitable clinical model for the development of gene therapy products and has a number of advantages: 1) there is a simple and well defined cause-and-effect relationship between the protein deficiencies and bleeding symptoms; 2) tissue-specific expression and precise regulation of the transgenes are not necessary; 3) well characterized animal models are available for preclinical studies; 4) an unequivocal endpoint for product efficacy can be assessed in clinical trials; and 5) even 1% to 5% of the normal physiological levels of the proteins is therapeutic.For gene therapy of hemophilia, the most challenging hurdle, with respect to the long-term expression of the deficient proteins at adequate levels, is the development of a suitable gene delivery system. Technologies have been evolving from ex vivo to in vivo approaches, from initial use of retroviral vector to recent application of adenviral (Ad) or adeno-associated virus (AAV) vector, demonstrating progress from early results of transient low-level expression to more sustained high-level expression.3 For hemophilia A treatment, Ad vectors are particularly useful, since the liver naturally produces factor VIII, and following intravenous (i.v.) injection, Ad vectors concentrate in the liver. This makes the gene transduction efficiency to liver very high. Adenovirus vectors have been developed for gene therapy due to their high titer, broad infectivity, potential for large payload, and in vivo gene delivery capacity.4 Although the immunogenicity and cytotoxicity associated with the early-generation Ad vectors have been a concern with respect to their clinical application, newly developed vectors, in which the viral coding sequences have been deleted, have significantly reduced the side effects associated with the vectors. The “gutless” Ad vector, or so called helper-dependent, large-capacity, or mini- Ad vectors are the representative examples of these new-generation Ad vectors.5-15
The mini-Ad vector system described in this report was developed based on two major research findings. First, an Ad- SV40 hybrid virus discovered during attempts to grow human Ad in non-permissive monkey COS-7 cells.16 The hybrid virus had a genome structure in which only both ends of the Ad sequences were retained and almost all coding sequences of the Ad genome were replaced by symmetric, tandemly repeated SV40 genomes. The hybrid viruses replicated and were packaged in the presence of a wild-type Ad as a helper. This finding implied that total replacement of the Ad genome was possible to form a mini-Ad vector as long as proper helper function and selective pressure was provided. Secondly, it was discovered that Ad packaging can be attenuated by deleting portions of the packaging signal.17 This finding provided a means to put selective pressure on the helper Ad (referred to as ancillary Ad) by specifically limiting its packaging process and allowing a preferential packaging of the mini-Ad. The system, therefore, is designed to have three main components: the mini-Ad vector, the E1-deleted ancillary Ad, and a production cell line that provides AdE1 complementation.Based on the mini-Ad vector system, MiniAdFVIII was developed. The MiniAdFVIII vector carries a 27 kb expression cassette, in which the full-length human factor VIII cDNA is flanked by a human albumin promoter and cognate genomic sequences. Infection of MiniAdFVIII in vitro showed that the vector mediated expression of functional human factor VIII at levels of 100-200 ng/106 cells per 24 hours in HepG2 and 293 cells. With single-dose intravenous injection of 1011 viral particles in hemophilic mice, MiniAdFVIII produced a sustained high-level expression of human factor VIII (at 100-800 ng/ml for up to 369 days) that corrected the factor VIII-deficient phenotype. Safety studies of MiniAdFVIII showed that there were no significant toxicities in mice and dogs after a single intravenous dose of up to 3×1011 and 6×1012 viral particles, respectively. In this report, other studies for developing the MiniAdFVIII vector with a site-specific integration capability and the development of a human factor VIII-tolerized mouse model for preclinical studies of MiniAdFVIII are described.
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Zhang WW, Sanders BC, Apers S, Goyal SK, Feder DL. Detecting Topological Transitions in Two Dimensions by Hamiltonian Evolution. Phys Rev Lett 2017; 119:197401. [PMID: 29219504 DOI: 10.1103/physrevlett.119.197401] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/26/2017] [Indexed: 06/07/2023]
Abstract
We show that the evolution of two-component particles governed by a two-dimensional spin-orbit lattice Hamiltonian can reveal transitions between topological phases. A kink in the mean width of the particle distribution signals the closing of the band gap, a prerequisite for a quantum phase transition between topological phases. Furthermore, for realistic and experimentally motivated Hamiltonians, the density profile in topologically nontrivial phases displays characteristic rings in the vicinity of the origin that are absent in trivial phases. The results are expected to have an immediate application to systems of ultracold atoms and photonic lattices.
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Affiliation(s)
- Wei-Wei Zhang
- State Key Laboratory of Networking and Switching Technology, Beijing University of Posts and Telecommunications, Beijing 100876, China
- Hefei National Laboratory for Physical Sciences at Microscale, University of Science and Technology of China, Hefei, Anhui 230026, China
- Institute for Quantum Science and Technology and Department of Physics and Astronomy, University of Calgary, Calgary, Alberta T2N 1N4, Canada
- Centre for Engineered Quantum Systems, School of Physics, The University of Sydney, Sydney, NSW 2006, Australia
| | - Barry C Sanders
- Hefei National Laboratory for Physical Sciences at Microscale, University of Science and Technology of China, Hefei, Anhui 230026, China
- Institute for Quantum Science and Technology and Department of Physics and Astronomy, University of Calgary, Calgary, Alberta T2N 1N4, Canada
- Shanghai Branch, CAS Center for Excellence and Synergetic Innovation Center in Quantum Information and Quantum Physics, University of Science and Technology of China, Shanghai 201315, China
- Program in Quantum Information Science, Canadian Institute for Advanced Research, Toronto, Ontario M5G 1M1, Canada
| | - Simon Apers
- SYSTeMS, Ghent University IR08, Technologiepark 913, B-9052 Zwijnaarde, Belgium
| | - Sandeep K Goyal
- Indian Institute of Science Education and Research, Mohali, Punjab 140306, India
| | - David L Feder
- Institute for Quantum Science and Technology and Department of Physics and Astronomy, University of Calgary, Calgary, Alberta T2N 1N4, Canada
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Lin PP, Chen WL, Yuan F, Sheng L, Wu YJ, Zhang WW, Li GQ, Xu HR, Li XN. An UHPLC-MS/MS method for simultaneous quantification of human amyloid beta peptides Aβ1-38, Aβ1-40 and Aβ1-42 in cerebrospinal fluid using micro-elution solid phase extraction. J Chromatogr B Analyt Technol Biomed Life Sci 2017; 1070:82-91. [PMID: 29102244 DOI: 10.1016/j.jchromb.2017.10.047] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/18/2017] [Revised: 10/17/2017] [Accepted: 10/20/2017] [Indexed: 01/31/2023]
Abstract
Amyloid beta (Aβ) peptides in cerebrospinal fluid are extensively estimated for identification of Alzheimer's disease (AD) as diagnostic biomarkers. Unfortunately, their pervasive application is hampered by interference from Aβ propensity of self-aggregation, nonspecifically bind to surfaces and matrix proteins, and by lack of quantitive standardization. Here we report on an alternative Ultra-high performance liquid chromatography-tandem mass spectrometry (UHPLC-MS/MS) method for simultaneous measurement of human amyloid beta peptides Aβ1-38, Aβ1-40 and Aβ1-42 in cerebrospinal fluid (CSF) using micro-elution solid phase extraction (SPE). Samples were pre-processing by the mixed-mode micro-elution solid phase extraction and quantification was performed in the positive ion multiple reaction monitoring (MRM) mode using electrospray ionization. The stable-isotope labeled Aβ peptides 15N51- Aβ1-38, 15N53- Aβ1-40 and 15N55- Aβ1-42 peptides were used as internal standards. And the artificial cerebrospinal fluid (ACSF) containing 5% rat plasma was used as a surrogate matrix for calibration curves. The quality control (QC) samples at 0.25, 2 and 15ng/mL were prepared. A "linear" regression (1/x2 weighting): y=ax+b was used to fit the calibration curves over the concentration range of 0.1-20ng/mL for all three peptides. Coefficient of variation (CV) of intra-batch and inter-batch assays were all less than 6.44% for Aβ1-38, 6.75% for Aβ1-40 and 10.74% for Aβ1-42. The precision values for all QC samples of three analytes met the acceptance criteria. Extract recoveries of Aβ1-38, Aβ1-40 and Aβ1-42 were all greater than 70.78%, both in low and high QC samples. The stability assessments showed that QC samples at both low and high levels could be stable for at least 24h at 4°C, 4h at room temperature and through three freeze-thaw cycles without sacrificing accuracy or precision. And no significant carryover effect was observed. This validated UHPLC/MS/MS method was successfully applied to the quantitation of Aβ peptides in real human CSF samples. Our work may provide a reference method for simultaneous quantitation of human Aβ1-38, Aβ1-40 and Aβ1-42 from CSF.
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Affiliation(s)
- Ping-Ping Lin
- Department of Clinical Pharmacology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Wei-Li Chen
- Department of Clinical Pharmacology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Fei Yuan
- Department of Clinical Pharmacology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Lei Sheng
- Department of Clinical Pharmacology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - Yu-Jia Wu
- School of Pharmacy, Fudan University, Shanghai 201203, China
| | - Wei-Wei Zhang
- Shanghai AB Sciex Analytical Instrument Trading Co., Ltd, Shanghai 200335, China
| | - Guo-Qing Li
- Shanghai AB Sciex Analytical Instrument Trading Co., Ltd, Shanghai 200335, China
| | - Hong-Rong Xu
- Department of Clinical Pharmacology, Zhongshan Hospital, Fudan University, Shanghai 200032, China.
| | - Xue-Ning Li
- Department of Clinical Pharmacology, Zhongshan Hospital, Fudan University, Shanghai 200032, China.
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Zhang WW, Bai F, Wang J, Zheng RH, Yang LW, James EA, Zhao ZQ. Edaravone inhibits pressure overload-induced cardiac fibrosis and dysfunction by reducing expression of angiotensin II AT1 receptor. Drug Des Devel Ther 2017; 11:3019-3033. [PMID: 29081650 PMCID: PMC5652925 DOI: 10.2147/dddt.s144807] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 01/14/2023]
Abstract
Angiotensin II (Ang II) is known to be involved in the progression of ventricular dysfunction and heart failure by eliciting cardiac fibrosis. The purpose of this study was to demonstrate whether treatment with an antioxidant compound, edaravone, reduces cardiac fibrosis and improves ventricular function by inhibiting Ang II AT1 receptor. The study was conducted in a rat model of transverse aortic constriction (TAC). In control, rats were subjected to 8 weeks of TAC. In treated rats, edaravone (10 mg/kg/day) or Ang II AT1 receptor blocker, telmisartan (10 mg/kg/day) was administered by intraperitoneal injection or gastric gavage, respectively, during TAC. Relative to the animals with TAC, edaravone reduced myocardial malonaldehyde level and increased superoxide dismutase activity. Protein level of the AT1 receptor was reduced and the AT2 receptor was upregulated, as evidenced by the reduced ratio of AT1 over AT2 receptor (0.57±0.2 vs 3.16±0.39, p<0.05) and less locally expressed AT1 receptor in the myocardium. Furthermore, the protein level of angiotensin converting enzyme 2 was upregulated. In coincidence with these changes, edaravone significantly decreased the populations of macrophages and myofibroblasts in the myocardium, which were accompanied by reduced levels of transforming growth factor beta 1 and Smad2/3. Collagen I synthesis was inhibited and collagen-rich fibrosis was attenuated. Relative to the TAC group, cardiac systolic function was preserved, as shown by increased left ventricular systolic pressure (204±51 vs 110±19 mmHg, p<0.05) and ejection fraction (82%±3% vs 60%±5%, p<0.05). Treatment with telmisartan provided a comparable level of protection as compared with edaravone in all the parameters measured. Taken together, edaravone treatment ameliorates cardiac fibrosis and improves left ventricular function in the pressure overload rat model, potentially via suppressing the AT1 receptor-mediated signaling pathways. These data indicate that edaravone might be selected in combination with other existing drugs in preventing progression of cardiac dysfunction in heart failure.
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Affiliation(s)
- Wei-Wei Zhang
- Department of Physiology, Shanxi Medical University.,Department of Anesthesiology, Shanxi Provincial People's Hospital, Taiyuan, Shanxi, China
| | - Feng Bai
- Department of Physiology, Shanxi Medical University
| | - Jin Wang
- Department of Physiology, Shanxi Medical University
| | | | - Li-Wang Yang
- Department of Physiology, Shanxi Medical University
| | | | - Zhi-Qing Zhao
- Department of Physiology, Shanxi Medical University.,Department of Basic Biomedical Sciences, Mercer University School of Medicine, Savannah, GA, USA
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Zhou QQ, Hu YB, Zhou K, Zhang WW, Li MH, Dong P, Di JG, Hong L, Du QW, Xie Y, Sun QF. [Value of non-invasive models of liver fibrosis in judgment of treatment timing in chronic hepatitis B patients with ALT < 2×upper limit of normal]. Zhonghua Gan Zang Bing Za Zhi 2017; 24:665-670. [PMID: 27788722 DOI: 10.3760/cma.j.issn.1007-3418.2016.09.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the value of non-invasive liver fibrosis models, FIB-4, S index, aspartate aminotransferase to platelet ratio index(APRI), globulin-platelet(GP)model, aspartate aminotransferase/platelet/gamma-glutamyl transpeptidase/alpha-fetoprotein(APGA), and platelet/age/phosphatase/alpha-fetoprotein/aspartate aminotransferase(PAPAS), in the diagnosis of marked liver fibrosis in chronic hepatitis B(CHB)patients with ALT < 2×upper limit of normal(ULN), as well as treatment timing for this population. Methods: A total of 389 CHB patients with ALT < 2×ULN who were admitted to Beijing Ditan Hospital and whose treatment timing was difficult to judge were enrolled. Transdermal liver biopsy was performed to obtain pathological results, and routine serological tests were performed, including routine blood test, serum biochemical parameters, hepatitis B virus(HBV)markers, and HBV DNA. According to liver pathology, the patients were divided into non-marked liver fibrosis group(S < 2)with 324 patients and marked liver fibrosis group(S≥2)with 65 patients. The non-invasive models for predicting liver fibrosis was established with reference to original articles. SPSS 19.0 software was used for statistical analysis, and the receiver operating characteristic(ROC)curve was used to compare the value of different non-invasive models in predicting marked liver fibrosis in this population. Results: All the non-invasive models had a certain diagnostic value for liver fibrosis degree in these patients, and the areas under the ROC curve for APRI, FIB-4, APGA, S index, PAPAS, and GP model were 0.718, 0.691, 0.758, 0.729, 0.673, and 0.691, respectively. APGA had the largest area under the ROC curve(0.758, 95% CI 0.673-0.844), and gamma-glutamyl transpeptidase was significantly positively correlated with liver fibrosis degree. Conclusion: The non-invasive models of liver fibrosis can identify marked liver fibrosis in CHB patients with ALT < 2×ULN in whom it is difficult to judge treatment timing and help to determine treatment timing for them. APGA model has the highest value and can reduce the need for liver biopsy to the certain degree.
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Affiliation(s)
- Q Q Zhou
- Department of Infectious Diseases, Ruian People's Hospital, Wenzhou 325200, China
| | - Y B Hu
- Wenzhou Medical University, Wenzhou 325035, China
| | - K Zhou
- Department of Infectious Diseases, Ruian People's Hospital, Wenzhou 325200, China
| | - W W Zhang
- Department of Infectious Diseases, Ruian People's Hospital, Wenzhou 325200, China
| | - M H Li
- Liver Center of Beijing Ditan Hospital, Capital Medical University, Beijing 100015, China
| | - P Dong
- Department of Infectious Diseases, Ruian People's Hospital, Wenzhou 325200, China
| | - J G Di
- Department of Infectious Diseases, Ruian People's Hospital, Wenzhou 325200, China
| | - L Hong
- Department of Infectious Diseases, Ruian People's Hospital, Wenzhou 325200, China
| | - Q W Du
- Department of Infectious Diseases, Ruian People's Hospital, Wenzhou 325200, China
| | - Y Xie
- Liver Center of Beijing Ditan Hospital, Capital Medical University, Beijing 100015, China
| | - Q F Sun
- Department of Infectious Diseases, Ruian People's Hospital, Wenzhou 325200, China
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Li F, Gong A, Qiu L, Zhang W, Li J, Liu Y, Liu Y, Yuan H. Simultaneous determination of trace rare-earth elements in simulated water samples using ICP-OES with TODGA extraction/back-extraction. PLoS One 2017; 12:e0185302. [PMID: 28945788 PMCID: PMC5612762 DOI: 10.1371/journal.pone.0185302] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2017] [Accepted: 09/11/2017] [Indexed: 11/18/2022] Open
Abstract
The determination of trace rare-earth elements (REEs) can be used for the assessment of environmental pollution, and is of great significance to the study of toxicity and toxicology in animals and plants. N, N, N', N'-tetraoctyl diglycolamide (TODGA) is an environmental friendly extractant that is highly selective to REEs. In this study, an analytical method was developed for the simultaneous determination of 16 trace REEs in simulated water samples by inductively coupled plasma optical emission spectroscopy (ICP-OES). With this method, TODGA was used as the extractant to perform the liquid-liquid extraction (LLE) sample pretreatment procedure. All 16 REEs were extracted from a 3 M nitric acid medium into an organic phase by a 0.025 M TODGA petroleum ether solution. A 0.03 M ethylenediaminetetraacetic acid disodium salt (EDTA) solution was used for back-extraction to strip the REEs from the organic phase into the aqueous phase. The aqueous phase was concentrated using a vacuum rotary evaporator and the concentration of the 16 REEs was detected by ICP-OES. Under the optimum experimental conditions, the limits of detection (3σ, n = 7) for the REEs ranged from 0.0405 ng mL-1 (Nd) to 0.5038 ng mL-1 (Ho). The relative standard deviations (c = 100 ng mL-1, n = 7) were from 0.5% (Eu) to 4.0% (Tm) with a linear range of 4-1000 ng mL-1 (R2 > 0.999). The recoveries of 16 REEs ranged from 95% to 106%. The LLE-ICP-OES method established in this study has the advantages of simple operation, low detection limits, fast analysis speed and the ability to simultaneously determine 16 REEs, thereby acting as a viable alternative for the simultaneous detection of trace amounts of REEs in water samples.
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Affiliation(s)
- FuKai Li
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, P R, China
| | - AiJun Gong
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, P R, China
| | - LiNa Qiu
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, P R, China
| | - WeiWei Zhang
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, P R, China
| | - JingRui Li
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, P R, China
| | - Yu Liu
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, P R, China
| | - YuNing Liu
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, P R, China
| | - HuiTing Yuan
- School of Chemistry and Biological Engineering, University of Science and Technology Beijing, Beijing, P R, China
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119
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Jiang YQ, Jia SH, Li XY, Sun YM, Li W, Zhang WW, Xu GQ. Design, Synthesis, and Antifungal Evaluation of Novel Benzoxazole Derivatives Containing a 1,2,3-Triazole Moiety. J CHIN CHEM SOC-TAIP 2017. [DOI: 10.1002/jccs.201700129] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Affiliation(s)
- Yu-Qin Jiang
- Henan Engineering Laboratory of Chemical Pharmaceuticals and Biomedical Materials, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering; Henan Normal University; Xinxiang Henan, 453007 China
| | - Shu-Hong Jia
- Henan Engineering Laboratory of Chemical Pharmaceuticals and Biomedical Materials, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering; Henan Normal University; Xinxiang Henan, 453007 China
| | - Xi-Yong Li
- Department of Marine Fisheries, Weihai Ocean Vocational College; Weihai Shandong 264300 China
| | - Ya-Min Sun
- Department of Marine Fisheries, Weihai Ocean Vocational College; Weihai Shandong 264300 China
| | - Wei Li
- Henan Engineering Laboratory of Chemical Pharmaceuticals and Biomedical Materials, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering; Henan Normal University; Xinxiang Henan, 453007 China
| | - Wei-Wei Zhang
- Henan Engineering Laboratory of Chemical Pharmaceuticals and Biomedical Materials, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering; Henan Normal University; Xinxiang Henan, 453007 China
| | - Gui-Qing Xu
- Henan Engineering Laboratory of Chemical Pharmaceuticals and Biomedical Materials, Collaborative Innovation Center of Henan Province for Green Manufacturing of Fine Chemicals, Key Laboratory of Green Chemical Media and Reactions, Ministry of Education, School of Chemistry and Chemical Engineering; Henan Normal University; Xinxiang Henan, 453007 China
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Chen J, Zhang WW, Chen KH, Lin LR, Dai HZ, Li KL, Zhang JG, Zheng LQ, Fu BQ, He YN. Urinary DcR2 is a novel biomarker for tubulointerstitial injury in patients with diabetic nephropathy. Am J Physiol Renal Physiol 2017; 313:F273-F281. [PMID: 28356293 DOI: 10.1152/ajprenal.00689.2016] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/12/2017] [Revised: 03/23/2017] [Accepted: 03/23/2017] [Indexed: 01/09/2023] Open
Abstract
Tubulointerstitial injury (TII) plays a crucial role in the progression of diabetic nephropathy (DN), but lack of specific and sensitive biomarkers for monitoring TII in DN management. This study is to investigate whether urinary decoy receptor 2 (uDcR2) could serve as a novel noninvasive biomarker for assessing TII in DN. We recruited 311 type 2 diabetics and 139 DN patients who were diagnosed by renal biopsy. uDcR2 levels were measured by ELISA, and renal DcR2 expression was detected immunohistochemically. Associations between uDcR2 and renal DcR2 and renal functional parameters were evaluated. Receiver operating characteristics (ROC) curve analyzed area under the curve (AUC) of uDcR2 for assessing TII. Double staining was undertaken for renal DcR2 with proximal and distal tubular markers; senescent markers p16, p21, and senescence-associated β-galactosidase (SA-β-gal); and fibrotic markers collagen I and IV. We found DcR2 was primarily expressed in renal proximal tubules; uDcR2 levels were elevated per albuminuria stratum and correlated with renal functional parameters in diabetics and were associated with percentage of tubular DcR2 and TII score in DN. The uDcR2 had an AUC of 0.909 for assessing TII in DN by ROC analysis. Almost all tubular DcR2 was coexpressed with p16 and p21, and nearly more than one-half of tubular DcR2 was positive for SA-β-gal, primarily in collagen I- and IV-positive regions of DN. Our results indicate uDcR2 could potentially serve as a novel biomarker for TII and may reflect senescence of renal proximal tubular cells in DN pathogenesis.
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Affiliation(s)
- Jia Chen
- Department of Nephrology, Daping Hospital, Third Military Medical University, Chongqing, China
| | - Wei-Wei Zhang
- Department of Nephrology, Daping Hospital, Third Military Medical University, Chongqing, China
| | - Ke-Hong Chen
- Department of Nephrology, Daping Hospital, Third Military Medical University, Chongqing, China
| | - Li-Rong Lin
- Department of Nephrology, Daping Hospital, Third Military Medical University, Chongqing, China
| | - Huan-Zi Dai
- Department of Nephrology, Daping Hospital, Third Military Medical University, Chongqing, China
| | - Kai-Long Li
- Department of Nephrology, Daping Hospital, Third Military Medical University, Chongqing, China
| | - Jian-Guo Zhang
- Department of Nephrology, Daping Hospital, Third Military Medical University, Chongqing, China
| | - Lu-Quan Zheng
- Department of Nephrology, Daping Hospital, Third Military Medical University, Chongqing, China
| | - Bi-Qiong Fu
- Department of Nephrology, Daping Hospital, Third Military Medical University, Chongqing, China
| | - Ya-Ni He
- Department of Nephrology, Daping Hospital, Third Military Medical University, Chongqing, China
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121
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Jin WS, Shen LL, Bu XL, Zhang WW, Chen SH, Huang ZL, Xiong JX, Gao CY, Dong Z, He YN, Hu ZA, Zhou HD, Song W, Zhou XF, Wang YZ, Wang YJ. Peritoneal dialysis reduces amyloid-beta plasma levels in humans and attenuates Alzheimer-associated phenotypes in an APP/PS1 mouse model. Acta Neuropathol 2017; 134:207-220. [PMID: 28477083 DOI: 10.1007/s00401-017-1721-y] [Citation(s) in RCA: 81] [Impact Index Per Article: 11.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/11/2017] [Revised: 05/01/2017] [Accepted: 05/02/2017] [Indexed: 01/02/2023]
Abstract
Clearance of amyloid-beta (Aβ) from the brain is an important therapeutic strategy for Alzheimer's disease (AD). Current studies mainly focus on the central approach of Aβ clearance by introducing therapeutic agents into the brain. In a previous study, we found that peripheral tissues and organs play important roles in clearing brain-derived Aβ, suggesting that the peripheral approach of removing Aβ from the blood may also be effective for AD therapy. Here, we investigated whether peritoneal dialysis, a clinically available therapeutic method for chronic kidney disease (CKD), reduces brain Aβ burden and attenuates AD-type pathologies and cognitive impairments. Thirty patients with newly diagnosed CKD were enrolled. The plasma Aβ concentrations of the patients were measured before and after peritoneal dialysis. APP/PS1 mice were subjected to peritoneal dialysis once a day for 1 month from 6 months of age (prevention study) or 9 months of age (treatment study). The Aβ in the interstitial fluid (ISF) was collected using microdialysis. Behavioural performance, long-term potentiation (LTP), Aβ burden and other AD-type pathologies were measured after 1 month of peritoneal dialysis. Peritoneal dialysis significantly reduced plasma Aβ levels in both CKD patients and APP/PS1 mice. Aβ levels in the brain ISF of APP/PS1 mice immediately decreased after reduction of Aβ in the blood during peritoneal dialysis. In both prevention and treatment studies, peritoneal dialysis substantially reduced Aβ deposition, attenuated other AD-type pathologies, including Tau hyperphosphorylation, glial activation, neuroinflammation, neuronal loss, and synaptic dysfunction, and rescued the behavioural deficits of APPswe/PS1 mice. Importantly, the Aβ phagocytosis function of microglia was enhanced in APP/PS1 mice after peritoneal dialysis. Our study suggests that peritoneal dialysis is a promising therapeutic method for AD, and Aβ clearance using a peripheral approach could be a desirable therapeutic strategy for AD.
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Affiliation(s)
- Wang-Sheng Jin
- Department of Neurology and Centre for Clinical Neuroscience, Daping Hospital, Third Military Medical University, Chongqing, China
| | - Lin-Lin Shen
- Department of Neurology and Centre for Clinical Neuroscience, Daping Hospital, Third Military Medical University, Chongqing, China
| | - Xian-Le Bu
- Department of Neurology and Centre for Clinical Neuroscience, Daping Hospital, Third Military Medical University, Chongqing, China
| | - Wei-Wei Zhang
- Department of Nephrology, Daping Hospital, Third Military Medical University, Chongqing, China
| | - Si-Han Chen
- Department of Neurology and Centre for Clinical Neuroscience, Daping Hospital, Third Military Medical University, Chongqing, China
| | - Zhi-Lin Huang
- Ministry of Education Key Laboratory of Child Development and Disorders and Chongqing Key Laboratory of Translational Medical Research in Cognitive Development and Learning and Memory Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Jia-Xiang Xiong
- Department of Physiology, Third Military Medical University, Chongqing, China
| | - Chang-Yue Gao
- Department of Neurology and Centre for Clinical Neuroscience, Daping Hospital, Third Military Medical University, Chongqing, China
| | - Zhifang Dong
- Ministry of Education Key Laboratory of Child Development and Disorders and Chongqing Key Laboratory of Translational Medical Research in Cognitive Development and Learning and Memory Disorders, Children's Hospital of Chongqing Medical University, Chongqing, China
| | - Ya-Ni He
- Department of Nephrology, Daping Hospital, Third Military Medical University, Chongqing, China
| | - Zhi-An Hu
- Department of Physiology, Third Military Medical University, Chongqing, China
| | - Hua-Dong Zhou
- Department of Neurology and Centre for Clinical Neuroscience, Daping Hospital, Third Military Medical University, Chongqing, China
| | - Weihong Song
- Townsend Family Laboratories, Department of Psychiatry, Center for Brain Health, The University of British Columbia, Vancouver, BC, V6T1Z3, Canada
| | - Xin-Fu Zhou
- School of Pharmacy and Medical Sciences and Sansom Institute, University of South Australia, Adelaide, Australia
| | - Yi-Zheng Wang
- Laboratory of Neural Signal Transduction, Institute of Neuroscience, Chinese Academy of Science, Shanghai, China
| | - Yan-Jiang Wang
- Department of Neurology and Centre for Clinical Neuroscience, Daping Hospital, Third Military Medical University, Chongqing, China.
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122
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Zhang W, Tong H, Zhang Z, Shao S, Liu D, Li S, Yan Y. Transcription factor EGR1 promotes differentiation of bovine skeletal muscle satellite cells by regulating
MyoG
gene expression. J Cell Physiol 2017; 233:350-362. [DOI: 10.1002/jcp.25883] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2016] [Accepted: 02/28/2017] [Indexed: 01/19/2023]
Affiliation(s)
- WeiWei Zhang
- The Laboratory of Cell and DevelopmentNortheast Agricultural UniversityXiangFang DistrictHarbin, Heilongjiang ProvinceChina
- Department of Life Science and AgroforestryQiqihar UniversityJianHua DistrictQiqihar, Heilongjiang ProvinceChina
| | - HuiLi Tong
- The Laboratory of Cell and DevelopmentNortheast Agricultural UniversityXiangFang DistrictHarbin, Heilongjiang ProvinceChina
| | - ZiHeng Zhang
- The Laboratory of Cell and DevelopmentNortheast Agricultural UniversityXiangFang DistrictHarbin, Heilongjiang ProvinceChina
| | - ShuLi Shao
- Department of Life Science and AgroforestryQiqihar UniversityJianHua DistrictQiqihar, Heilongjiang ProvinceChina
| | - Dan Liu
- The Laboratory of Cell and DevelopmentNortheast Agricultural UniversityXiangFang DistrictHarbin, Heilongjiang ProvinceChina
| | - ShuFeng Li
- The Laboratory of Cell and DevelopmentNortheast Agricultural UniversityXiangFang DistrictHarbin, Heilongjiang ProvinceChina
| | - YunQin Yan
- The Laboratory of Cell and DevelopmentNortheast Agricultural UniversityXiangFang DistrictHarbin, Heilongjiang ProvinceChina
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123
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Zhang WW, Song J, Wang M, Liu YY, Li N, Zhang YJ, Holbrook NM, Hao GY. Divergences in hydraulic architecture form an important basis for niche differentiation between diploid and polyploid Betula species in NE China. Tree Physiol 2017; 37:604-616. [PMID: 28338717 DOI: 10.1093/treephys/tpx004] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [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: 10/15/2016] [Accepted: 01/25/2017] [Indexed: 05/02/2023]
Abstract
Habitat differentiation between polyploid and diploid plants are frequently observed, with polyploids usually occupying more stressed environments. In woody plants, polyploidization can greatly affect wood characteristics but knowledge of its influences on xylem hydraulics is scarce. The four Betula species in NE China, representing two diploids and two polyploids with obvious habitat differentiation, provide an exceptional study system for investigating the impact of polyploidization on environmental adaptation of trees from the point view of xylem hydraulics. To test the hypothesis that changes in hydraulic architecture play an important role in determining their niche differentiation, we measured wood structural traits at both the tissue and pit levels and quantified xylem water transport efficiency and safety in these species. The two polyploids had significantly larger hydraulic weighted mean vessel diameters than the two diploids (45.1 and 45.5 vs 25.9 and 24.5 μm) although the polyploids are occupying more stressed environments. As indicated by more negative water potentials corresponding to 50% loss of stem hydraulic conductivities, the two polyploids exhibited significantly higher resistance to drought-induced embolism than the two diploids (-5.23 and -5.05 vs -3.86 and -3.13 MPa) despite their larger vessel diameters. This seeming discrepancy is reconciled by distinct characteristics favoring greater embolism resistance at the pit level in the two polyploid species. Our results showed clearly that the two polyploid species have remarkably different pit-level anatomical traits favoring greater hydraulic safety than their congeneric diploid species, which have likely contributed to the abundance of polyploid birches in more stressed habitats; however, less porous inter-conduit pits together with a reduced leaf to sapwood area may have compromised their competitiveness under more favorable conditions. Contrasts in hydraulic architecture between diploid and polyploid Betula species suggest an important functional basis for their clear habitat differentiation along environmental gradients in Changbai Mountain of NE China.
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Affiliation(s)
- Wei-Wei Zhang
- CAS Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, Liaoning, China
| | - Jia Song
- CAS Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, Liaoning, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Miao Wang
- CAS Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, Liaoning, China
| | - Yan-Yan Liu
- CAS Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, Liaoning, China
- University of Chinese Academy of Sciences, Beijing 100049, China
| | - Na Li
- CAS Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, Liaoning, China
| | - Yong-Jiang Zhang
- Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, MA 02138, USA
| | - N Michele Holbrook
- Department of Organismic and Evolutionary Biology, Harvard University, Cambridge, MA 02138, USA
- The Arnold Arboretum of Harvard University, Boston, MA 02131, USA
| | - Guang-You Hao
- CAS Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110016, Liaoning, China
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124
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Yang D, Goldstein G, Wang M, Zhang WW, Wang AY, Liu YY, Hao GY. Microenvironment in the canopy rivals the host tree water status in controlling sap flow of a mistletoe species. Tree Physiol 2017; 37:501-510. [PMID: 28338947 DOI: 10.1093/treephys/tpx018] [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] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/15/2016] [Accepted: 02/16/2017] [Indexed: 06/06/2023]
Abstract
Mistletoes absorb water from the vascular system of their hosts and thus the water use of mistletoes can be influenced by the water status of their hosts besides abiotic environmental conditions; however, there is a lack of studies on the dynamics of mistletoe water utilization in relation to both types of controlling factors. By building a canopy platform at 20 m above the ground, we monitored the dynamic changes of sap flow of Viscum coloratum (Kom.) Nakai (Loranthaceae) in combination with continuous measurements of microclimatic variables and volumetric water content (VWC) of its host tree branch xylem. We found that the host tree VWC exhibited substantial fluctuations during sunny days but lower VWC of the host did not negatively affect the sap flow of V. coloratum. Hourly and daily mean transpiration rates (Esap) of V. coloratum calculated from sap flow measurements showed strong positive correlations with photosynthetic photon flux density (PPFD) and vapor pressure deficit (VPD) measured in close vicinity to the point of mistletoe attachment. The mean Esap of V. coloratum was substantially higher than that of their host during clear days (4.55 ± 0.54 vs 2.01 ± 0.15 kg m-2 day-1). Moreover, the mistletoe-to-host transpiration ratio was not constant but became increasingly larger with the increase of PPFD or VPD on both hourly and daily bases, suggesting a weaker control of water loss in the mistletoe in comparison to its host species. The strong dependence of mistletoe Esap on micrometeorological variables and its decoupling from the host tree xylem water status suggests that the development of dense tree canopy functions as a potential mechanism for the host trees in reducing the competitive water use of mistletoes. These findings have important implications for the interactions between mistletoe species and their host trees in temperate forests.
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Affiliation(s)
- Da Yang
- Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110010, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Guillermo Goldstein
- Department of Biology, University of Miami, PO Box 249118, Coral Gables, FL 33124, USA
- Departamento de Ecología, Genética y Evolución, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires, Ciudad Universitaria, Nuñez, Buenos Aires C1428EGA, Argentina
| | - Miao Wang
- Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110010, China
| | - Wei-Wei Zhang
- Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110010, China
| | - Ai-Ying Wang
- Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110010, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Yan-Yan Liu
- Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110010, China
- College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Guang-You Hao
- Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110010, China
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125
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Wang C, Fu SY, Wang MD, Yu WB, Cui QS, Wang HR, Huang H, Dong W, Zhang WW, Li PP, Lin C, Pan ZY, Yang Y, Wu MC, Zhou WP. Zinc finger protein X-linked promotes expansion of EpCAM + cancer stem-like cells in hepatocellular carcinoma. Mol Oncol 2017; 11:455-469. [PMID: 28156061 PMCID: PMC5527465 DOI: 10.1002/1878-0261.12036] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [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: 09/11/2016] [Revised: 01/24/2017] [Accepted: 01/24/2017] [Indexed: 12/15/2022] Open
Abstract
Zinc finger protein X‐linked (ZFX) is frequently upregulated in multiple human malignancies and also plays a critical role in the maintenance of self‐renewal in embryonic stem cells. However, the role of ZFX in liver cancer stem cells (CSCs) remains obscure. We observed that the elevated expression of both ZFX and epithelial cell adhesion molecule (EpCAM) was associated with aggressive clinicopathological features and indicated poor prognosis in patients with hepatocellular carcinoma (HCC). ZFX was commonly enriched in liver EpCAM+ CSCs. Knockdown of ZFX decreased the proportion of EpCAM+ CSCs in HCC cells and suppressed their expression of stemness‐related genes, self‐renewal capacity, chemoresistance, metastatic potential, and tumorigenicity. Conversely, upregulation of ZFX in CSCs rescued these inhibitory effects and enhanced stem‐like properties. Mechanistically, depletion of ZFX reduced nuclear translocation and transactivation of β‐catenin, thereby inhibiting the self‐renewal capacity of EpCAM+ CSCs. Moreover, knockdown of β‐catenin attenuated the self‐renewal of EpCAM+ HCC cells stably expressing ZFX, further indicating that β‐catenin is required for ZFX‐mediated expansion and maintenance of EpCAM+ CSCs. Taken together, our findings indicate that ZFX activates and maintains EpCAM+ liver CSCs by promoting nuclear translocation and transactivation of β‐catenin. Furthermore, combination of ZFX and EpCAM may serve as a significant indicator for prognosis of patients with HCC.
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Affiliation(s)
- Chao Wang
- The Third Department of Hepatic Surgery, Eastern Hepatobiliary Hospital, Second Military Medical University, Shanghai, China.,Department of Urology, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Si-Yuan Fu
- The Third Department of Hepatic Surgery, Eastern Hepatobiliary Hospital, Second Military Medical University, Shanghai, China
| | - Ming-da Wang
- The Department of Hepatic Surgery, Eastern Hepatobiliary Hospital, Second Military Medical University, Shanghai, China
| | - Wen-Bo Yu
- The Second Military Medical University, Shanghai, China
| | - Qin-Shu Cui
- The Second Military Medical University, Shanghai, China
| | - Hong-Ru Wang
- The Second Military Medical University, Shanghai, China
| | - Hai Huang
- Department of Urinary Surgery, Changzheng Hospital, Second Military Medical University, Shanghai, China
| | - Wei Dong
- Liberty Mutual Group, Boston, MA, USA
| | - Wei-Wei Zhang
- Department of Laboratory Diagnostic, Changhai Hospital, Second Military Medical University, Shanghai, China
| | - Peng-Peng Li
- The Third Department of Hepatic Surgery, Eastern Hepatobiliary Hospital, Second Military Medical University, Shanghai, China
| | - Chuan Lin
- The Third Department of Hepatic Surgery, Eastern Hepatobiliary Hospital, Second Military Medical University, Shanghai, China
| | - Ze-Ya Pan
- The Third Department of Hepatic Surgery, Eastern Hepatobiliary Hospital, Second Military Medical University, Shanghai, China
| | - Yuan Yang
- The Third Department of Hepatic Surgery, Eastern Hepatobiliary Hospital, Second Military Medical University, Shanghai, China
| | - Meng-Chao Wu
- The Department of Hepatic Surgery, Eastern Hepatobiliary Hospital, Second Military Medical University, Shanghai, China
| | - Wei-Ping Zhou
- The Third Department of Hepatic Surgery, Eastern Hepatobiliary Hospital, Second Military Medical University, Shanghai, China
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126
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Wu YS, Zhang WW, Ling XM, Yang L, Huang SB, Wang XC, Wu H, Cai WP, Wang M, Wang H, Liu YF, He HL, Wei FL, Wu ZY, Zhang FJ. Efficacy and Safety of Tenofovir and Lamivudine in Combination with Efavirenz in Patients Co-infected with Human Immunodeficiency Virus and Hepatitis B Virus in China. Chin Med J (Engl) 2017; 129:304-8. [PMID: 26831232 PMCID: PMC4799574 DOI: 10.4103/0366-6999.174509] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.1] [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] [Indexed: 12/22/2022] Open
Abstract
Background: The prevalence of hepatitis B virus (HBV) infection is high among individuals infected with human immunodeficiency virus (HIV) in China. Both HIV and HBV can be treated with tenofovir disoproxil fumarate (TDF) and lamivudine (3TC), so we evaluated the safety and efficacy of combination antiretroviral therapy (ART) that included TDF, 3TC, and efavirenz (EFV) among ART-naive individuals who were co-infected with HIV and HBV. Methods: One hundred HIV/HBV co-infected ARV-naive individuals were started on the regimen of TDF, 3TC, and EFV, and the levels of plasma HBV DNA, HIV RNA, and biochemical evaluation related to the function of liver and kidney were analyzed. Results: Concerning efficacy, this study found that by week 48, the vast majority co-infected participants receiving this ART regimen had undetectable HBV DNA levels (71%) and/or HIV RNA levels (90%). Concerning safety, this study found that the median estimated glomerular filtration rate of participants decreased from baseline (109 ml·min−1·1.73 m−2) to week 12 (104 ml·min−1·1.73 m−2) but was almost back to baseline at week 48 (111 ml·min−1·1.73 m−2). Conclusion: This combination ART regimen is safe and effective for patients with HIV/HBV co-infection. Trial Registration: ClinicalTrials.gov, NCT01751555; https://clinicaltrials.gov/ct2/show/NCT01751555.
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Affiliation(s)
| | | | | | | | | | | | | | | | | | | | | | | | | | | | - Fu-Jie Zhang
- National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing 100050; Department of Infectious Diseases, Beijing Ditan Hospital, Capital Medical University, Beijing 100015, China
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127
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Wang C, Wang MD, Cheng P, Huang H, Dong W, Zhang WW, Li PP, Lin C, Pan ZY, Wu MC, Zhou WP. Hepatitis B virus X protein promotes the stem-like properties of OV6 + cancer cells in hepatocellular carcinoma. Cell Death Dis 2017; 8:e2560. [PMID: 28102846 PMCID: PMC5386392 DOI: 10.1038/cddis.2016.493] [Citation(s) in RCA: 32] [Impact Index Per Article: 4.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/04/2016] [Revised: 12/20/2016] [Accepted: 12/21/2016] [Indexed: 02/07/2023]
Abstract
Hepatitis B virus X protein (HBx) and cancer stem-like cells (CSCs) have both been implicated in the occurrence and development of HBV-related hepatocellular carcinoma (HCC). However, whether HBx contributes to the stem-like properties of OV6+ CSCs in HCC remains elusive. In this study, we showed that the concomitant expression of HBx and OV6 was closely associated with the clinical outcomes and prognosis of patients with HBV-related HCC. HBx was required for the stem-like properties of OV6+ liver CSCs, including self-renewal, stem cell-associated gene expression, tumorigenicity and chemoresistance. Mechanistically, HBx enhanced expression of MDM2 by directly binding with MDM2 and inhibiting its ubiquitin-directed self-degradation. MDM2 translocation into the nucleus was also upregulated by HBx and resulted in enhanced transcriptional activity and expression of CXCL12 and CXCR4 independent of p53. This change in expression activated the Wnt/β-catenin pathway and promoted the stem-like properties of OV6+ liver CSCs. Furthermore, we observed that the expression of any two indicators from the HBx/MDM2/CXCR4/OV6 axis in HCC biopsies could predict the prognosis of patients with HBV-related HCC. Taken together, our findings indicate the functional role of HBx in regulating the stem-like properties of OV6+ CSCs in HCC through the MDM2/CXCL12/CXCR4/β-catenin signaling axis, and identify HBx, MDM2, CXCR4 and OV6 as a novel prognostic pathway and potential therapeutic targets for patients with HBV-related HCC patients.
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Affiliation(s)
- Chao Wang
- The Third Department of Hepatic Surgery, Eastern Hepatobiliary Hospital, Second Military Medical University, 225 Changhai Road, Shanghai 200438, China.,Department of Urology, Changhai Hospital, Second Military Medical University, 168 Changhai Road, Shanghai 200438, China
| | - Ming-da Wang
- The Department of Hepatic Surgery, Eastern Hepatobiliary Hospital, Second Military Medical University, 225 Changhai Road, Shanghai 200438, China
| | - Peng Cheng
- Changhai Hospital, Second Military Medical University, 168 Changhai Road, Shanghai 200438, China
| | - Hai Huang
- Changzheng Hospital, Second Military Medical University, Fengyang Road Shanghai 200003, China
| | - Wei Dong
- Data Scientist, Liberty Mutual Group, 157 Berkeley Street, Boston, MA 02116, USA
| | - Wei-Wei Zhang
- Changhai Hospital, Second Military Medical University, 168 Changhai Road, Shanghai 200438, China
| | - Peng-Peng Li
- The Third Department of Hepatic Surgery, Eastern Hepatobiliary Hospital, Second Military Medical University, 225 Changhai Road, Shanghai 200438, China
| | - Chuan Lin
- The Third Department of Hepatic Surgery, Eastern Hepatobiliary Hospital, Second Military Medical University, 225 Changhai Road, Shanghai 200438, China
| | - Ze-Ya Pan
- The Third Department of Hepatic Surgery, Eastern Hepatobiliary Hospital, Second Military Medical University, 225 Changhai Road, Shanghai 200438, China
| | - Meng-Chao Wu
- The Department of Hepatic Surgery, Eastern Hepatobiliary Hospital, Second Military Medical University, 225 Changhai Road, Shanghai 200438, China
| | - Wei-Ping Zhou
- The Third Department of Hepatic Surgery, Eastern Hepatobiliary Hospital, Second Military Medical University, 225 Changhai Road, Shanghai 200438, China
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128
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Xia R, Chen SX, Qin Q, Chen Y, Zhang WW, Zhu RR, Deng AM. Oridonin Suppresses Proliferation of Human Ovarian Cancer Cells via Blockage of mTOR Signaling. Asian Pac J Cancer Prev 2017; 17:667-71. [PMID: 26925661 DOI: 10.7314/apjcp.2016.17.2.667] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Oridonin, an ent-kaurane diterpenoid compound isolated from the traditional Chinese herb Rabdosia rubescens, has shown various pharmacological and physiological effects such as anti-tumor, anti-bacterial, and anti-inflammatory properties. However, the effect of oridonin on human ovarian cancer cell lines has not been determined. In this study, we demonstrated that oridonin inhibited ovarian cancer cell proliferation, migration and invasion in a dose-dependent manner. Furthermore, we showed oridonin inhibited tumor growth of ovarian cancer cells (SKOV3) in vivo. We then assessed mechanisms and found that oridonin specifically abrogated the phosphorylation/activation of mTOR signaling. In summary, our results indicate that oridonin is a potential inhibitor of ovarian cancer by blocking the mTOR signaling pathway.
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Affiliation(s)
- Rong Xia
- Department of Transfusion, Huashan Hospital, Fudan University, Shanghai, P. R. China E-mail :
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129
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Zhang W, Wang N, Liu YH, Jiao SY, Zhang WW, Pu XM, Yu XQ. 1,4-Dihydropyridines: discovery of minimal AIEEgens and their mitochondrial imaging applications. J Mater Chem B 2017; 5:464-469. [DOI: 10.1039/c6tb02135b] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/25/2022]
Abstract
Minimal AIEEgens containing only a single ring were synthesized through a facile biocatalysis procedure and were successfully utilized in the imaging of mitochondria.
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Affiliation(s)
- Wei Zhang
- Key Laboratory of Green Chemistry and Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Na Wang
- Key Laboratory of Green Chemistry and Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Yan-Hong Liu
- Key Laboratory of Green Chemistry and Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Shu-Yan Jiao
- Key Laboratory of Green Chemistry and Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Wei-Wei Zhang
- Key Laboratory of Green Chemistry and Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Xue-Mei Pu
- Key Laboratory of Green Chemistry and Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
| | - Xiao-Qi Yu
- Key Laboratory of Green Chemistry and Technology
- Ministry of Education
- College of Chemistry
- Sichuan University
- Chengdu 610064
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Su T, Zhang WW, Zhang YM, Cheng BCY, Fu XQ, Li T, Guo H, Li YX, Zhu PL, Cao H, Yu ZL. Standardization of the manufacturing procedure for Pinelliae Rhizoma Praeparatum cum Zingibere et Alumine. J Ethnopharmacol 2016; 193:663-669. [PMID: 27717907 DOI: 10.1016/j.jep.2016.09.038] [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] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 03/04/2016] [Revised: 09/01/2016] [Accepted: 09/18/2016] [Indexed: 06/06/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Pinelliae Rhizoma (PR), the dried tuber of Pinellia ternata (Thunb.) Breit., is a traditional Chinese medicinal herb. It is commonly used for treating cancer, cough and phlegm. To treat cancer, Chinese medicine practitioners often use raw PR; while to treat cough and phlegm, they usually use Pinelliae Rhizoma Praeparatum cum Zingibere et Alumine (PRZA, raw PR processed with ginger juice and alumen as adjuvant materials). Currently, the producing protocol of PRZA varies greatly among different places in China. This study aims to standardize the manufacturing procedure for PRZA. We also evaluated the impact of processing on the bioactivities and chemical profile of raw PR. MATERIALS AND METHODS We used the orthogonal design to optimize the manufacturing procedure of PRZA at bench scale, and validated the optimized procedure in pilot-scale production. The MTT assay was used to compare the cytotoxicities of raw PR and PRZA in hepatocellular carcinoma HepG2 cells. Animal models (ammonia liquor-induced cough model and phenol red secretion model) were used to compare the antitussive and expectorant effects of raw PR and PRZA, respectively. The chemical profiles of raw PR and PRZA samples were compared using a newly developed ultra-performance liquid chromatography/quadrupole-time-of-flight mass spectrometry (UPLC/Q-TOF-MS) method. RESULTS The standardized manufacturing procedure for PRZA is as follows: soak raw PR in water until the center of the cut surface is devoid of a dry core, after that, boil the herb in water (for each 100kg raw PR, 12.5kg alumen and 25L freshly squeezed ginger juice are added) for 6h, and then take out and dry them. The cytotoxicity of PRZA was less potent than that of raw PR. Intragastric administration of raw PR or PRZA demonstrated antitussive and expectorant effects in mice. These effects of PRZA were more potent than that of raw PR at the dose of 3g/kg. By comparing the chemical profiles, we found that six peaks were lower, while nine other peaks were higher in PRZA than in raw PR. Six compounds corresponding to six individual changed peaks were tentatively identified by matching with empirical molecular formulae and mass fragments. CONCLUSION The manufacturing procedure for PRZA was standardized. This protocol can be used for PRZA industrial production. The bioactivity assay results of raw PR and PRZA (produced using the standardized protocol) support the common practice for the clinical applications of these two decoction pieces. Moreover, raw PR and PRZA showed different chemical profiles. Further studies are warranted to establish the relationship between the alteration of chemical profiles and the changes of medicinal properties caused by processing.
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MESH Headings
- Adjuvants, Pharmaceutic/chemistry
- Animals
- Antineoplastic Agents, Phytogenic/isolation & purification
- Antineoplastic Agents, Phytogenic/pharmacology
- Antitussive Agents/isolation & purification
- Antitussive Agents/pharmacology
- Antitussive Agents/therapeutic use
- Cell Survival/drug effects
- Chromatography, Liquid
- Cough/drug therapy
- Disease Models, Animal
- Drugs, Chinese Herbal/isolation & purification
- Drugs, Chinese Herbal/pharmacology
- Drugs, Chinese Herbal/therapeutic use
- Expectorants/isolation & purification
- Expectorants/pharmacology
- Expectorants/therapeutic use
- Fruit and Vegetable Juices
- Zingiber officinale/chemistry
- Hep G2 Cells
- Humans
- Mass Spectrometry
- Mice, Inbred ICR
- Pinellia/chemistry
- Technology, Pharmaceutical/methods
- Technology, Pharmaceutical/standards
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Affiliation(s)
- Tao Su
- School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China; Institute of Integrated Bioinfomedicine & Translational Science, HKBU Shenzhen Research Institute and Continuing Education, Shenzhen, China.
| | - Wei-Wei Zhang
- School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China.
| | - Ya-Ming Zhang
- School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China.
| | - Brian Chi-Yan Cheng
- School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China.
| | - Xiu-Qiong Fu
- School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China.
| | - Ting Li
- School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China.
| | - Hui Guo
- School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China.
| | - Ya-Xi Li
- School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China.
| | - Pei-Li Zhu
- School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China.
| | - Hui Cao
- College of Pharmacy, Jinan University, Guangzhou, China.
| | - Zhi-Ling Yu
- School of Chinese Medicine, Hong Kong Baptist University, Kowloon Tong, Hong Kong, China; Institute of Integrated Bioinfomedicine & Translational Science, HKBU Shenzhen Research Institute and Continuing Education, Shenzhen, China.
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131
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Li YJ, Zhang WW, Yang XX, Li N, Qiu XB, Qu XK, Fang WY, Yang YQ, Li RG. Impact of prior permanent pacemaker on long-term clinical outcomes of patients undergoing percutaneous coronary intervention. Clin Cardiol 2016; 40:205-209. [PMID: 27879000 DOI: 10.1002/clc.22645] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/08/2016] [Accepted: 10/22/2016] [Indexed: 11/07/2022] Open
Abstract
BACKGROUND The impact of permanent pacemaker (PPM) on long-term clinical outcomes of patients undergoing percutaneous coronary intervention (PCI) has not been studied. HYPOTHESIS PPM may increase heart failure (HF) burden on patients undergoing PCI. METHODS We recruited consecutive patients undergoing PCI and carried out a nested case-control study. Patients with confirmed PPM undergoing first PCI were identified and matched by age and sex in 1:1 fashion to patients without PPM undergoing first PCI. Clinical data were collected and analyzed. The primary endpoint outcomes were all-cause mortality and hospitalization for HF. RESULTS The final analysis included 156 patients. The mean follow-up period was 4.6 ± 2.9 years. The overall all-cause mortality was 21.15%, without significant difference between the 2 groups (21.79% vs 20.51%; P = 0.85). However, the rate of HF-related hospitalization was significantly higher in patients with PPM than in controls (26.92% vs 10.26%; P = 0.008). After adjustment for hypertension, type 2 diabetes mellitus, hyperlipidemia, chronic kidney disease, stroke, left ventricular ejection fraction, brain natriuretic peptide, and acute coronary syndrome (ACS), PCI patients with PPM were still associated with a greater hospitalization rate for HF (odds ratio: 4.31, 95% confidence interval: 0.94-19.80, P = 0.061). Further analysis in the ACS subgroup showed VVI-mode pacing enhanced the risk for HF-associated hospitalization (adjusted odds ratio: 8.27, 95% confidence interval: 1.37-49.75, P = 0.02). CONCLUSIONS PPM has no effect on all-cause mortality in patients undergoing first PCI but significantly increases the HF-associated hospitalization rate, especially in ACS patients.
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Affiliation(s)
- Yan-Jie Li
- Department of Cardiology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China.,Department of Cardiovascular Research Laboratory, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Wei-Wei Zhang
- Department of Cardiology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Xiao-Xiao Yang
- Department of Cardiology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Ning Li
- Department of Cardiology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China.,Department of Cardiovascular Research Laboratory, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Xing-Biao Qiu
- Department of Cardiology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Xin-Kai Qu
- Department of Cardiology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Wei-Yi Fang
- Department of Cardiology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Yi-Qing Yang
- Department of Cardiology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China.,Department of Cardiovascular Research Laboratory, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China.,Department of Central Laboratory, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
| | - Ruo-Gu Li
- Department of Cardiology, Shanghai Chest Hospital, Shanghai Jiao Tong University, Shanghai, China
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Zhang WW, Zhan SH, Geng CX, Sun X, Erkan M, Kleeff J, Xie XJ. Activated leukocyte cell adhesion molecule regulates the interaction between pancreatic cancer cells and stellate cells. Mol Med Rep 2016; 14:3627-33. [PMID: 27573419 PMCID: PMC5042774 DOI: 10.3892/mmr.2016.5681] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/30/2015] [Accepted: 07/01/2016] [Indexed: 11/22/2022] Open
Abstract
Activated leukocyte cell adhesion molecule (ALCAM/CD166) is a transmembrane glycoprotein that is involved in tumor progression and metastasis. In the present study, the expression and functional role of ALCAM in pancreatic cancer cells and pancreatic stellate cells (PSCs) was investigated. Tissue specimens were obtained from patients with pancreatic ductal adenocarcinoma (n=56) or chronic pancreatitis (CP; n=10), who underwent pancreatic resection, and from normal pancreatic tissue samples (n=10). Immunohistochemistry was used to analyze the localization and expression of ALCAM in pancreatic tissues. Subsequently, reverse transcription-quantitative polymerase chain reaction and immunoblotting were applied to assess the expression of ALCAM in pancreatic cancer Panc-1 and T3M4 cells, as well as in PSCs. An enzyme-linked immunosorbent assay was used to measure ALCAM levels in cell culture medium stimulated by hypoxia, tumor necrosis factor (TNF)-α and transforming growth factor-β. Silencing of ALCAM was performed using ALCAM small interfering (si)RNA and immunocytochemistry was used to analyze the inhibition efficiency. An invasion assay and a cell interaction assay were performed to assess the invasive ability and co-cultured adhesive potential of Panc-1 and T3M4 cells, as well as PSCs. Histologically, ALCAM expression was generally weak or absent in pancreatic cancer cells, but was markedly upregulated in PSCs in pancreatic cancer tissues. ALCAM was highly expressed in PSCs from CP tissues and PSCs surrounding pancreatic intraepithelial neoplasias, as well as in pancreatic cancer cells. ALCAM mRNA was highly expressed in PSCs, with a low to moderate expression in T3M4 and Panc-1 cells. Similar to the mRNA expression, immunoblotting demonstrated that ALCAM protein levels were high in PSCs and T3M4 cells, but low in Panc-1 cells. The expression of TNF-α increased, while hypoxia decreased the secretion of ALCAM in pancreatic cancer Panc-1 and T3M4 cells, and also in PSCs. Silencing of ALCAM by siRNA revealed no significant alteration in the invasion of pancreatic cancer cells, however, it inhibited the invasive ability of PSCs, and decreased the interaction between Panc-1 cells and PSCs. In conclusion, ALCAM is upregulated in PSCs of pancreatic cancer tissues, suggesting a potential role of ALCAM in regulating pancreatic cancer cell-PSC interactions.
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Affiliation(s)
- Wei-Wei Zhang
- Department of Gastroenterology, Qingdao Municipal Hospital, Qingdao, Shandong 266071, P.R. China
| | - Shu-Hui Zhan
- Department of Gastroenterology, Qingdao Municipal Hospital, Qingdao, Shandong 266071, P.R. China
| | - Chang-Xin Geng
- Department of Gastroenterology, Qingdao Municipal Hospital, Qingdao, Shandong 266071, P.R. China
| | - Xin Sun
- Department of Gastroenterology, Qingdao Municipal Hospital, Qingdao, Shandong 266071, P.R. China
| | - Mert Erkan
- Department of Surgery, Koc University School of Medicine, Istanbul 34450, Turkey
| | - Jörg Kleeff
- Department of Surgery, Technical University of Munich, D-80333 Munich, Germany
| | - Xiang-Jun Xie
- Department of Gastroenterology, Qingdao Municipal Hospital, Qingdao, Shandong 266071, P.R. China
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133
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Wang AY, Wang M, Yang D, Song J, Zhang WW, Han SJ, Hao GY. Responses of hydraulics at the whole-plant level to simulated nitrogen deposition of different levels in Fraxinus mandshurica. Tree Physiol 2016; 36:1045-1055. [PMID: 27259635 DOI: 10.1093/treephys/tpw048] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [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: 01/29/2016] [Accepted: 05/04/2016] [Indexed: 06/05/2023]
Abstract
Nitrogen (N) deposition is expected to have great impact on forest ecosystems by affecting many aspects of plant-environmental interactions, one of which involves its influences on plant water relations through modifications of plant hydraulic architecture. However, there is a surprising lack of integrative study on tree hydraulic architecture responses to N deposition, especially at the whole-plant level. In the present study, we used a 5-year N addition experiment to simulate the effects of six different levels of N deposition (20-120 kg ha(-1) year(-1)) on growth and whole-plant hydraulic conductance of a dominant tree species (Fraxinus mandshurica Rupr.) from the typical temperate forest of NE China. The results showed that alleviation of N limitation by moderate concentrations of fertilization (20-80 kg ha(-1) year(-1)) promoted plant growth, but further N additions on top of the threshold level showed negative effects on plant growth. Growth responses of F. mandshurica seedlings to N addition of different concentrations were accompanied by corresponding changes in whole-plant hydraulic conductance; higher growth rate was accompanied by reduced whole-plant hydraulic conductance (Kplant) and higher leaf water-use efficiency. A detailed analysis on hydraulic conductance of different components of the whole-plant water transport pathway revealed that changes in root and leaf hydraulic conductance, rather than that of the stem, were responsible for Kplant responses to N fertilization. Both plant growth and hydraulic architecture responses to increasing levels of N addition were not linear, i.e., the correlation between measured parameters and N availability exhibited bell-shaped curves with peak values observed at medium levels of N fertilization. Changes in hydraulic architecture in response to fertilization found in the present study may represent an important underlying mechanism for the commonly observed changes in water-related tree performances in response to N deposition.
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Affiliation(s)
- Ai-Ying Wang
- Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110010, China College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Miao Wang
- Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110010, China
| | - Da Yang
- Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110010, China College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Jia Song
- Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110010, China College of Resources and Environment, University of Chinese Academy of Sciences, Beijing 100049, China
| | - Wei-Wei Zhang
- Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110010, China
| | - Shi-Jie Han
- Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110010, China
| | - Guang-You Hao
- Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110010, China
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134
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Yan XG, Lu ZJ, Zheng JC, Zhang WW, Lu GP, Jia B. [Application of right jugular vessels to build extracorporeal membrane oxygenation for treating the critically ill children]. Zhonghua Er Ke Za Zhi 2016; 54:515-8. [PMID: 27412742 DOI: 10.3760/cma.j.issn.0578-1310.2016.07.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
OBJECTIVE To summarize the experience in applying a technique of inserting a cannula through right internal jugular vein and common carotid artery to build extracorporeal membrane oxygenation (ECMO) for critically ill children. METHOD The data of critically ill patients received ECMO support through right internal jugular vein and common carotid artery between December 2011 and December 2015 from Children's Hospital of Fudan University were analyzed retrospectively.The data included diagnosis, age, body weight, time of cannula and ECMO running, complication and prognosis. RESULT In total 28 patients received ECMO support, 3 patients of post-cardiac surgery with transthoracic cannula were excluded.Twenty-five patients inserted cannula through neck vessels were enrolled, 15 boys and 10 girls, the median age was 1.8 years (range, 1 d-13 years), the median weight was 12.0 (2.8-50.0) kg.All the cannula sites were right internal jugular vein and right common carotid artery, before cannula use 5 patients had been inserted central vein tube and 3 patients with blood filter tube in right internal jugular vein, in one case cannula was applied during cardiopulmonary resuscitation.V-A ECMO had been built for all the cases successfully, the median operation time was (45±26) min.The pump flow was 80-150 ml/(kg·min), the median duration of ECMO support was 153(14-567) h. Sixteen (64%) patients weaned off ECMO successfully, 15(60%) survived to hospital discharge.About the complication of cannula, six patients developed cannula site bleeding, and two patients required re-fixation of cannula, one patient's external jugular vein had been hurt and sutured for bleeding. CONCLUSION Application of right jugular vessels to build ECMO is easy and safe for treating the sick children. The skill should be proficient to assure ECMO run and reduce the complications.
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Affiliation(s)
- X G Yan
- Department of Cardiothoracic Surgery, Children's Hospital of Fudan University, Shanghai 201102, China
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135
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Chen ZY, Zhang WW, Gan JK, Kong LN, Zhang XQ, Zhang DX, Luo QB. Genetic effect of an A/G polymorphism in the HSP70 gene on thermotolerance in chicken. Genet Mol Res 2016; 15:gmr8271. [PMID: 27421010 DOI: 10.4238/gmr.15028271] [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] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
Studying thermotolerance is important for the prevention of thermostress in chickens. This study aimed to analyze the effect of mutations in the heat shock protein 70 (HSP70) gene on chicken thermotolerance. The C.-69A>G SNP in the 5'-flanking region of the HSP70 gene was genotyped in Lingshan and White Recessive Rock (WRR) chickens. Association of this SNP with thermotolerance traits revealed it to be significantly associated with CD4+/CD8+, and potentially associated with heterophil-to-lymphocyte ratio in WRR chickens exposed to thermoneutral temperature (15°C). Online prediction detected a putative myeloid zinc finger protein 1 binding factor in the C.-69A>G mutation. Under acute thermostress, mRNA levels of HSP70 in individuals with different C.-69A>G genotypes varied in the heart, leg muscle, and liver tissues. The HSP70 protein was expressed at higher levels in individuals with the GG genotype than in those with the AA genotype. In heart and liver, protein expression of HSP70 in individuals with the GG genotype was significantly higher than in those with the AA genotype. In leg muscle, protein expression was higher in birds with the GG genotype than in those with the AA and AG genotypes. Luciferase activity of the GG genotype was significantly higher than that of the AA genotype, suggesting that the C.-69A>G SNP regulates HSP70 gene expression. These results indicate that the C.-69A>G SNP in the 5'-flanking region of the HSP70 gene might affect chicken thermotolerance and that the GG genotype might be advantageous for the prevention of thermostress.
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Affiliation(s)
- Z Y Chen
- College of Animal Science, South China Agricultural University, Guangzhou, China.,Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, South China Agricultural University, Guangzhou, China
| | - W W Zhang
- College of Animal Science, South China Agricultural University, Guangzhou, China.,Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, South China Agricultural University, Guangzhou, China
| | - J K Gan
- College of Animal Science, South China Agricultural University, Guangzhou, China.,Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, South China Agricultural University, Guangzhou, China
| | - L N Kong
- College of Animal Science, South China Agricultural University, Guangzhou, China.,Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, South China Agricultural University, Guangzhou, China
| | - X Q Zhang
- College of Animal Science, South China Agricultural University, Guangzhou, China.,Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, South China Agricultural University, Guangzhou, China
| | - D X Zhang
- College of Animal Science, South China Agricultural University, Guangzhou, China.,Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, South China Agricultural University, Guangzhou, China
| | - Q B Luo
- College of Animal Science, South China Agricultural University, Guangzhou, China.,Key Lab of Chicken Genetics, Breeding and Reproduction, Ministry of Agriculture, South China Agricultural University, Guangzhou, China
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136
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Velez-Cubian FO, Zhang WW, Rodriguez KL, Thau MR, Ng EP, Moodie CC, Garrett JR, Fontaine JP, Toloza EM. Effect of small body habitus on peri-operative outcomes after robotic-assisted pulmonary lobectomy: retrospective analysis of 208 consecutive cases. J Thorac Dis 2016; 8:1245-9. [PMID: 27293843 DOI: 10.21037/jtd.2016.04.67] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
BACKGROUND Patients with smaller body surface area (BSA) have smaller pleural cavities, which limit visualization and instrument mobility during video-assisted thoracoscopic surgery (VATS). We investigated the effects of BSA on outcomes with robotic-assisted VATS lobectomy. METHODS We analyzed 208 consecutive patients who underwent robotic-assisted lobectomy over 34 months. Patients were separated into group A (BSA ≤1.65 m(2)) and group B (BSA >1.65 m(2)). Operative times, estimated blood loss (EBL), conversions to thoracotomy, complications, hospital length of stay (LOS), and in-hospital mortality were compared. RESULTS Group A had 40 patients (BSA 1.25-1.65 m(2)), and group B had 168 patients (BSA 1.66-2.86 m(2)). Median skin-to-skin operative times [± standard error of the mean (SEM)] were 169±16 min for group A and 176±6 min for group B (P=0.34). Group A had median EBL of 150±96 mL compared to 200±24 mL for group B (P=0.37). Overall conversion rate to thoracotomy was 8/40 (20.0%) in group A versus 12/168 (7.1%) in group B (P=0.03); while emergent conversion for bleeding was 2/40 (5.0%) in group A versus 5/168 (3.0%) in group B (P=0.62). Postoperative complications occurred in 12/40 (30.0%) in group A, compared to 66/168 (39.3%) in group B (P=0.28). Patients from both groups had median hospital LOS of 5 days (P=0.68) and had similar in-hospital mortality. CONCLUSIONS Patients with BSA ≤1.65 m(2) have similar perioperative outcomes and complication risks as patients with larger BSA. Patients with BSA ≤1.65 m(2) have a higher overall conversion rate to thoracotomy, but similar conversion rate for bleeding as patients with larger BSA. Robotic-assisted pulmonary lobectomy is feasible and safe in patients with small body habitus.
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Affiliation(s)
- Frank O Velez-Cubian
- 1 Department of Surgery, University of South Florida, Tampa, FL, USA ; 2 Morsani College of Medicine, University of South Florida, Tampa, FL, USA ; 3 Department of Thoracic Oncology, Moffitt Cancer Center, Tampa, FL, USA ; 4 Department of Oncologic Sciences, University of South Florida, Tampa, FL, USA
| | - Wei-Wei Zhang
- 1 Department of Surgery, University of South Florida, Tampa, FL, USA ; 2 Morsani College of Medicine, University of South Florida, Tampa, FL, USA ; 3 Department of Thoracic Oncology, Moffitt Cancer Center, Tampa, FL, USA ; 4 Department of Oncologic Sciences, University of South Florida, Tampa, FL, USA
| | - Kathryn L Rodriguez
- 1 Department of Surgery, University of South Florida, Tampa, FL, USA ; 2 Morsani College of Medicine, University of South Florida, Tampa, FL, USA ; 3 Department of Thoracic Oncology, Moffitt Cancer Center, Tampa, FL, USA ; 4 Department of Oncologic Sciences, University of South Florida, Tampa, FL, USA
| | - Matthew R Thau
- 1 Department of Surgery, University of South Florida, Tampa, FL, USA ; 2 Morsani College of Medicine, University of South Florida, Tampa, FL, USA ; 3 Department of Thoracic Oncology, Moffitt Cancer Center, Tampa, FL, USA ; 4 Department of Oncologic Sciences, University of South Florida, Tampa, FL, USA
| | - Emily P Ng
- 1 Department of Surgery, University of South Florida, Tampa, FL, USA ; 2 Morsani College of Medicine, University of South Florida, Tampa, FL, USA ; 3 Department of Thoracic Oncology, Moffitt Cancer Center, Tampa, FL, USA ; 4 Department of Oncologic Sciences, University of South Florida, Tampa, FL, USA
| | - Carla C Moodie
- 1 Department of Surgery, University of South Florida, Tampa, FL, USA ; 2 Morsani College of Medicine, University of South Florida, Tampa, FL, USA ; 3 Department of Thoracic Oncology, Moffitt Cancer Center, Tampa, FL, USA ; 4 Department of Oncologic Sciences, University of South Florida, Tampa, FL, USA
| | - Joseph R Garrett
- 1 Department of Surgery, University of South Florida, Tampa, FL, USA ; 2 Morsani College of Medicine, University of South Florida, Tampa, FL, USA ; 3 Department of Thoracic Oncology, Moffitt Cancer Center, Tampa, FL, USA ; 4 Department of Oncologic Sciences, University of South Florida, Tampa, FL, USA
| | - Jacques-Pierre Fontaine
- 1 Department of Surgery, University of South Florida, Tampa, FL, USA ; 2 Morsani College of Medicine, University of South Florida, Tampa, FL, USA ; 3 Department of Thoracic Oncology, Moffitt Cancer Center, Tampa, FL, USA ; 4 Department of Oncologic Sciences, University of South Florida, Tampa, FL, USA
| | - Eric M Toloza
- 1 Department of Surgery, University of South Florida, Tampa, FL, USA ; 2 Morsani College of Medicine, University of South Florida, Tampa, FL, USA ; 3 Department of Thoracic Oncology, Moffitt Cancer Center, Tampa, FL, USA ; 4 Department of Oncologic Sciences, University of South Florida, Tampa, FL, USA
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Lee CH, Sethi R, Li R, Ho HH, Hein T, Jim MH, Loo G, Koo CY, Gao XF, Chandra S, Yang XX, Furlan SF, Ge Z, Mundhekar A, Zhang WW, Uchôa CHG, Kharwar RB, Chan PF, Chen SL, Chan MY, Richards AM, Tan HC, Ong TH, Roldan G, Tai BC, Drager LF, Zhang JJ. Obstructive Sleep Apnea and Cardiovascular Events After Percutaneous Coronary Intervention. Circulation 2016; 133:2008-17. [PMID: 27178625 DOI: 10.1161/circulationaha.115.019392] [Citation(s) in RCA: 153] [Impact Index Per Article: 19.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/09/2015] [Accepted: 03/18/2016] [Indexed: 11/16/2022]
Abstract
BACKGROUND There is a paucity of data from large cohort studies examining the prognostic significance of obstructive sleep apnea (OSA) in patients with coronary artery disease. We hypothesized that OSA predicts subsequent major adverse cardiac and cerebrovascular events (MACCEs) in patients undergoing percutaneous coronary intervention. METHODS AND RESULTS The Sleep and Stent Study was a prospective, multicenter registry of patients successfully treated with percutaneous coronary intervention in 5 countries. Between December 2011 and April 2014, 1748 eligible patients were prospectively enrolled. The 1311 patients who completed a sleep study within 7 days of percutaneous coronary intervention formed the cohort for this analysis. Drug-eluting stents were used in 80.1% and bioresorbable vascular scaffolds in 6.3% of the patients, and OSA, defined as an apnea-hypopnea index of ≥15 events per hour, was found in 45.3%. MACCEs, a composite of cardiovascular mortality, nonfatal myocardial infarction, nonfatal stroke, and unplanned revascularization, occurred in 141 patients during the median follow-up of 1.9 years (interquartile range, 0.8 years). The crude incidence of an MACCEs was higher in the OSA than the non-OSA group (3-year estimate, 18.9% versus 14.0%; p=0.001). Multivariate Cox regression analysis indicated that OSA was a predictor of MACCEs, with an adjusted hazard ratio of 1.57 (95% confidence interval, 1.10-2.24; P=0.013), independently of age, sex, ethnicity, body mass index, diabetes mellitus, and hypertension. CONCLUSIONS OSA is independently associated with subsequent MACCEs in patients undergoing percutaneous coronary intervention. Evaluation of therapeutic approaches to mitigate OSA-associated risk is warranted. CLINICAL TRIAL REGISTRATION URL: http://www.clinicaltrials.gov. Unique identifier: NCT01306526.
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Affiliation(s)
- Chi-Hang Lee
- From Department of Cardiology, National University Heart Centre, Singapore (C-H.L., G.L., C.-Y.K., P.-F.C., M.Y.C., A.M.R., H.-C.T.); Department of Cardiology, King George's Medical University, Lucknow, India (R.S., S.C., A.M., R.B.K.); Department of Cardiology, Shanghai Chest Hospital, China (R.L., X.-X.Y., W.-W.Z.); Department of Cardiology, Tan Tock Seng Hospital, Singapore (H.-H.H.); No (1) 1000-Bed Defence Services General Hospital, Mingaladon, Yangon, Myanmar (T.H.); Cardiac Medical Unit, Grantham Hospital, Hong Kong (M.-H.J.); Department of Cardiology, Nanjing First Hospital, Nanjing Medical University, China (X.-F.G., Z.G., S.-L.C., J.-J.Z.); Hypertension Unit-Heart Institute (InCor), University of Sao Paulo Medical School, Brazil (S.F.F., C.H.G.U., L.F.D.); Department of Respiratory and Critical Care Medicine, Singapore General Hospital, Singapore (T.-H.O.); Sleep Educators, Antioch, CA (G.R.); and Saw Swee Hock School of Public Health, National University of Singapore, Singapore (B.-C.T.).
| | - Rishi Sethi
- From Department of Cardiology, National University Heart Centre, Singapore (C-H.L., G.L., C.-Y.K., P.-F.C., M.Y.C., A.M.R., H.-C.T.); Department of Cardiology, King George's Medical University, Lucknow, India (R.S., S.C., A.M., R.B.K.); Department of Cardiology, Shanghai Chest Hospital, China (R.L., X.-X.Y., W.-W.Z.); Department of Cardiology, Tan Tock Seng Hospital, Singapore (H.-H.H.); No (1) 1000-Bed Defence Services General Hospital, Mingaladon, Yangon, Myanmar (T.H.); Cardiac Medical Unit, Grantham Hospital, Hong Kong (M.-H.J.); Department of Cardiology, Nanjing First Hospital, Nanjing Medical University, China (X.-F.G., Z.G., S.-L.C., J.-J.Z.); Hypertension Unit-Heart Institute (InCor), University of Sao Paulo Medical School, Brazil (S.F.F., C.H.G.U., L.F.D.); Department of Respiratory and Critical Care Medicine, Singapore General Hospital, Singapore (T.-H.O.); Sleep Educators, Antioch, CA (G.R.); and Saw Swee Hock School of Public Health, National University of Singapore, Singapore (B.-C.T.)
| | - Ruogu Li
- From Department of Cardiology, National University Heart Centre, Singapore (C-H.L., G.L., C.-Y.K., P.-F.C., M.Y.C., A.M.R., H.-C.T.); Department of Cardiology, King George's Medical University, Lucknow, India (R.S., S.C., A.M., R.B.K.); Department of Cardiology, Shanghai Chest Hospital, China (R.L., X.-X.Y., W.-W.Z.); Department of Cardiology, Tan Tock Seng Hospital, Singapore (H.-H.H.); No (1) 1000-Bed Defence Services General Hospital, Mingaladon, Yangon, Myanmar (T.H.); Cardiac Medical Unit, Grantham Hospital, Hong Kong (M.-H.J.); Department of Cardiology, Nanjing First Hospital, Nanjing Medical University, China (X.-F.G., Z.G., S.-L.C., J.-J.Z.); Hypertension Unit-Heart Institute (InCor), University of Sao Paulo Medical School, Brazil (S.F.F., C.H.G.U., L.F.D.); Department of Respiratory and Critical Care Medicine, Singapore General Hospital, Singapore (T.-H.O.); Sleep Educators, Antioch, CA (G.R.); and Saw Swee Hock School of Public Health, National University of Singapore, Singapore (B.-C.T.)
| | - Hee-Hwa Ho
- From Department of Cardiology, National University Heart Centre, Singapore (C-H.L., G.L., C.-Y.K., P.-F.C., M.Y.C., A.M.R., H.-C.T.); Department of Cardiology, King George's Medical University, Lucknow, India (R.S., S.C., A.M., R.B.K.); Department of Cardiology, Shanghai Chest Hospital, China (R.L., X.-X.Y., W.-W.Z.); Department of Cardiology, Tan Tock Seng Hospital, Singapore (H.-H.H.); No (1) 1000-Bed Defence Services General Hospital, Mingaladon, Yangon, Myanmar (T.H.); Cardiac Medical Unit, Grantham Hospital, Hong Kong (M.-H.J.); Department of Cardiology, Nanjing First Hospital, Nanjing Medical University, China (X.-F.G., Z.G., S.-L.C., J.-J.Z.); Hypertension Unit-Heart Institute (InCor), University of Sao Paulo Medical School, Brazil (S.F.F., C.H.G.U., L.F.D.); Department of Respiratory and Critical Care Medicine, Singapore General Hospital, Singapore (T.-H.O.); Sleep Educators, Antioch, CA (G.R.); and Saw Swee Hock School of Public Health, National University of Singapore, Singapore (B.-C.T.)
| | - Thet Hein
- From Department of Cardiology, National University Heart Centre, Singapore (C-H.L., G.L., C.-Y.K., P.-F.C., M.Y.C., A.M.R., H.-C.T.); Department of Cardiology, King George's Medical University, Lucknow, India (R.S., S.C., A.M., R.B.K.); Department of Cardiology, Shanghai Chest Hospital, China (R.L., X.-X.Y., W.-W.Z.); Department of Cardiology, Tan Tock Seng Hospital, Singapore (H.-H.H.); No (1) 1000-Bed Defence Services General Hospital, Mingaladon, Yangon, Myanmar (T.H.); Cardiac Medical Unit, Grantham Hospital, Hong Kong (M.-H.J.); Department of Cardiology, Nanjing First Hospital, Nanjing Medical University, China (X.-F.G., Z.G., S.-L.C., J.-J.Z.); Hypertension Unit-Heart Institute (InCor), University of Sao Paulo Medical School, Brazil (S.F.F., C.H.G.U., L.F.D.); Department of Respiratory and Critical Care Medicine, Singapore General Hospital, Singapore (T.-H.O.); Sleep Educators, Antioch, CA (G.R.); and Saw Swee Hock School of Public Health, National University of Singapore, Singapore (B.-C.T.)
| | - Man-Hong Jim
- From Department of Cardiology, National University Heart Centre, Singapore (C-H.L., G.L., C.-Y.K., P.-F.C., M.Y.C., A.M.R., H.-C.T.); Department of Cardiology, King George's Medical University, Lucknow, India (R.S., S.C., A.M., R.B.K.); Department of Cardiology, Shanghai Chest Hospital, China (R.L., X.-X.Y., W.-W.Z.); Department of Cardiology, Tan Tock Seng Hospital, Singapore (H.-H.H.); No (1) 1000-Bed Defence Services General Hospital, Mingaladon, Yangon, Myanmar (T.H.); Cardiac Medical Unit, Grantham Hospital, Hong Kong (M.-H.J.); Department of Cardiology, Nanjing First Hospital, Nanjing Medical University, China (X.-F.G., Z.G., S.-L.C., J.-J.Z.); Hypertension Unit-Heart Institute (InCor), University of Sao Paulo Medical School, Brazil (S.F.F., C.H.G.U., L.F.D.); Department of Respiratory and Critical Care Medicine, Singapore General Hospital, Singapore (T.-H.O.); Sleep Educators, Antioch, CA (G.R.); and Saw Swee Hock School of Public Health, National University of Singapore, Singapore (B.-C.T.)
| | - Germaine Loo
- From Department of Cardiology, National University Heart Centre, Singapore (C-H.L., G.L., C.-Y.K., P.-F.C., M.Y.C., A.M.R., H.-C.T.); Department of Cardiology, King George's Medical University, Lucknow, India (R.S., S.C., A.M., R.B.K.); Department of Cardiology, Shanghai Chest Hospital, China (R.L., X.-X.Y., W.-W.Z.); Department of Cardiology, Tan Tock Seng Hospital, Singapore (H.-H.H.); No (1) 1000-Bed Defence Services General Hospital, Mingaladon, Yangon, Myanmar (T.H.); Cardiac Medical Unit, Grantham Hospital, Hong Kong (M.-H.J.); Department of Cardiology, Nanjing First Hospital, Nanjing Medical University, China (X.-F.G., Z.G., S.-L.C., J.-J.Z.); Hypertension Unit-Heart Institute (InCor), University of Sao Paulo Medical School, Brazil (S.F.F., C.H.G.U., L.F.D.); Department of Respiratory and Critical Care Medicine, Singapore General Hospital, Singapore (T.-H.O.); Sleep Educators, Antioch, CA (G.R.); and Saw Swee Hock School of Public Health, National University of Singapore, Singapore (B.-C.T.)
| | - Chieh-Yang Koo
- From Department of Cardiology, National University Heart Centre, Singapore (C-H.L., G.L., C.-Y.K., P.-F.C., M.Y.C., A.M.R., H.-C.T.); Department of Cardiology, King George's Medical University, Lucknow, India (R.S., S.C., A.M., R.B.K.); Department of Cardiology, Shanghai Chest Hospital, China (R.L., X.-X.Y., W.-W.Z.); Department of Cardiology, Tan Tock Seng Hospital, Singapore (H.-H.H.); No (1) 1000-Bed Defence Services General Hospital, Mingaladon, Yangon, Myanmar (T.H.); Cardiac Medical Unit, Grantham Hospital, Hong Kong (M.-H.J.); Department of Cardiology, Nanjing First Hospital, Nanjing Medical University, China (X.-F.G., Z.G., S.-L.C., J.-J.Z.); Hypertension Unit-Heart Institute (InCor), University of Sao Paulo Medical School, Brazil (S.F.F., C.H.G.U., L.F.D.); Department of Respiratory and Critical Care Medicine, Singapore General Hospital, Singapore (T.-H.O.); Sleep Educators, Antioch, CA (G.R.); and Saw Swee Hock School of Public Health, National University of Singapore, Singapore (B.-C.T.)
| | - Xiao-Fei Gao
- From Department of Cardiology, National University Heart Centre, Singapore (C-H.L., G.L., C.-Y.K., P.-F.C., M.Y.C., A.M.R., H.-C.T.); Department of Cardiology, King George's Medical University, Lucknow, India (R.S., S.C., A.M., R.B.K.); Department of Cardiology, Shanghai Chest Hospital, China (R.L., X.-X.Y., W.-W.Z.); Department of Cardiology, Tan Tock Seng Hospital, Singapore (H.-H.H.); No (1) 1000-Bed Defence Services General Hospital, Mingaladon, Yangon, Myanmar (T.H.); Cardiac Medical Unit, Grantham Hospital, Hong Kong (M.-H.J.); Department of Cardiology, Nanjing First Hospital, Nanjing Medical University, China (X.-F.G., Z.G., S.-L.C., J.-J.Z.); Hypertension Unit-Heart Institute (InCor), University of Sao Paulo Medical School, Brazil (S.F.F., C.H.G.U., L.F.D.); Department of Respiratory and Critical Care Medicine, Singapore General Hospital, Singapore (T.-H.O.); Sleep Educators, Antioch, CA (G.R.); and Saw Swee Hock School of Public Health, National University of Singapore, Singapore (B.-C.T.)
| | - Sharad Chandra
- From Department of Cardiology, National University Heart Centre, Singapore (C-H.L., G.L., C.-Y.K., P.-F.C., M.Y.C., A.M.R., H.-C.T.); Department of Cardiology, King George's Medical University, Lucknow, India (R.S., S.C., A.M., R.B.K.); Department of Cardiology, Shanghai Chest Hospital, China (R.L., X.-X.Y., W.-W.Z.); Department of Cardiology, Tan Tock Seng Hospital, Singapore (H.-H.H.); No (1) 1000-Bed Defence Services General Hospital, Mingaladon, Yangon, Myanmar (T.H.); Cardiac Medical Unit, Grantham Hospital, Hong Kong (M.-H.J.); Department of Cardiology, Nanjing First Hospital, Nanjing Medical University, China (X.-F.G., Z.G., S.-L.C., J.-J.Z.); Hypertension Unit-Heart Institute (InCor), University of Sao Paulo Medical School, Brazil (S.F.F., C.H.G.U., L.F.D.); Department of Respiratory and Critical Care Medicine, Singapore General Hospital, Singapore (T.-H.O.); Sleep Educators, Antioch, CA (G.R.); and Saw Swee Hock School of Public Health, National University of Singapore, Singapore (B.-C.T.)
| | - Xiao-Xiao Yang
- From Department of Cardiology, National University Heart Centre, Singapore (C-H.L., G.L., C.-Y.K., P.-F.C., M.Y.C., A.M.R., H.-C.T.); Department of Cardiology, King George's Medical University, Lucknow, India (R.S., S.C., A.M., R.B.K.); Department of Cardiology, Shanghai Chest Hospital, China (R.L., X.-X.Y., W.-W.Z.); Department of Cardiology, Tan Tock Seng Hospital, Singapore (H.-H.H.); No (1) 1000-Bed Defence Services General Hospital, Mingaladon, Yangon, Myanmar (T.H.); Cardiac Medical Unit, Grantham Hospital, Hong Kong (M.-H.J.); Department of Cardiology, Nanjing First Hospital, Nanjing Medical University, China (X.-F.G., Z.G., S.-L.C., J.-J.Z.); Hypertension Unit-Heart Institute (InCor), University of Sao Paulo Medical School, Brazil (S.F.F., C.H.G.U., L.F.D.); Department of Respiratory and Critical Care Medicine, Singapore General Hospital, Singapore (T.-H.O.); Sleep Educators, Antioch, CA (G.R.); and Saw Swee Hock School of Public Health, National University of Singapore, Singapore (B.-C.T.)
| | - Sofia F Furlan
- From Department of Cardiology, National University Heart Centre, Singapore (C-H.L., G.L., C.-Y.K., P.-F.C., M.Y.C., A.M.R., H.-C.T.); Department of Cardiology, King George's Medical University, Lucknow, India (R.S., S.C., A.M., R.B.K.); Department of Cardiology, Shanghai Chest Hospital, China (R.L., X.-X.Y., W.-W.Z.); Department of Cardiology, Tan Tock Seng Hospital, Singapore (H.-H.H.); No (1) 1000-Bed Defence Services General Hospital, Mingaladon, Yangon, Myanmar (T.H.); Cardiac Medical Unit, Grantham Hospital, Hong Kong (M.-H.J.); Department of Cardiology, Nanjing First Hospital, Nanjing Medical University, China (X.-F.G., Z.G., S.-L.C., J.-J.Z.); Hypertension Unit-Heart Institute (InCor), University of Sao Paulo Medical School, Brazil (S.F.F., C.H.G.U., L.F.D.); Department of Respiratory and Critical Care Medicine, Singapore General Hospital, Singapore (T.-H.O.); Sleep Educators, Antioch, CA (G.R.); and Saw Swee Hock School of Public Health, National University of Singapore, Singapore (B.-C.T.)
| | - Zhen Ge
- From Department of Cardiology, National University Heart Centre, Singapore (C-H.L., G.L., C.-Y.K., P.-F.C., M.Y.C., A.M.R., H.-C.T.); Department of Cardiology, King George's Medical University, Lucknow, India (R.S., S.C., A.M., R.B.K.); Department of Cardiology, Shanghai Chest Hospital, China (R.L., X.-X.Y., W.-W.Z.); Department of Cardiology, Tan Tock Seng Hospital, Singapore (H.-H.H.); No (1) 1000-Bed Defence Services General Hospital, Mingaladon, Yangon, Myanmar (T.H.); Cardiac Medical Unit, Grantham Hospital, Hong Kong (M.-H.J.); Department of Cardiology, Nanjing First Hospital, Nanjing Medical University, China (X.-F.G., Z.G., S.-L.C., J.-J.Z.); Hypertension Unit-Heart Institute (InCor), University of Sao Paulo Medical School, Brazil (S.F.F., C.H.G.U., L.F.D.); Department of Respiratory and Critical Care Medicine, Singapore General Hospital, Singapore (T.-H.O.); Sleep Educators, Antioch, CA (G.R.); and Saw Swee Hock School of Public Health, National University of Singapore, Singapore (B.-C.T.)
| | - Ajeya Mundhekar
- From Department of Cardiology, National University Heart Centre, Singapore (C-H.L., G.L., C.-Y.K., P.-F.C., M.Y.C., A.M.R., H.-C.T.); Department of Cardiology, King George's Medical University, Lucknow, India (R.S., S.C., A.M., R.B.K.); Department of Cardiology, Shanghai Chest Hospital, China (R.L., X.-X.Y., W.-W.Z.); Department of Cardiology, Tan Tock Seng Hospital, Singapore (H.-H.H.); No (1) 1000-Bed Defence Services General Hospital, Mingaladon, Yangon, Myanmar (T.H.); Cardiac Medical Unit, Grantham Hospital, Hong Kong (M.-H.J.); Department of Cardiology, Nanjing First Hospital, Nanjing Medical University, China (X.-F.G., Z.G., S.-L.C., J.-J.Z.); Hypertension Unit-Heart Institute (InCor), University of Sao Paulo Medical School, Brazil (S.F.F., C.H.G.U., L.F.D.); Department of Respiratory and Critical Care Medicine, Singapore General Hospital, Singapore (T.-H.O.); Sleep Educators, Antioch, CA (G.R.); and Saw Swee Hock School of Public Health, National University of Singapore, Singapore (B.-C.T.)
| | - Wei-Wei Zhang
- From Department of Cardiology, National University Heart Centre, Singapore (C-H.L., G.L., C.-Y.K., P.-F.C., M.Y.C., A.M.R., H.-C.T.); Department of Cardiology, King George's Medical University, Lucknow, India (R.S., S.C., A.M., R.B.K.); Department of Cardiology, Shanghai Chest Hospital, China (R.L., X.-X.Y., W.-W.Z.); Department of Cardiology, Tan Tock Seng Hospital, Singapore (H.-H.H.); No (1) 1000-Bed Defence Services General Hospital, Mingaladon, Yangon, Myanmar (T.H.); Cardiac Medical Unit, Grantham Hospital, Hong Kong (M.-H.J.); Department of Cardiology, Nanjing First Hospital, Nanjing Medical University, China (X.-F.G., Z.G., S.-L.C., J.-J.Z.); Hypertension Unit-Heart Institute (InCor), University of Sao Paulo Medical School, Brazil (S.F.F., C.H.G.U., L.F.D.); Department of Respiratory and Critical Care Medicine, Singapore General Hospital, Singapore (T.-H.O.); Sleep Educators, Antioch, CA (G.R.); and Saw Swee Hock School of Public Health, National University of Singapore, Singapore (B.-C.T.)
| | - Carlos Henrique G Uchôa
- From Department of Cardiology, National University Heart Centre, Singapore (C-H.L., G.L., C.-Y.K., P.-F.C., M.Y.C., A.M.R., H.-C.T.); Department of Cardiology, King George's Medical University, Lucknow, India (R.S., S.C., A.M., R.B.K.); Department of Cardiology, Shanghai Chest Hospital, China (R.L., X.-X.Y., W.-W.Z.); Department of Cardiology, Tan Tock Seng Hospital, Singapore (H.-H.H.); No (1) 1000-Bed Defence Services General Hospital, Mingaladon, Yangon, Myanmar (T.H.); Cardiac Medical Unit, Grantham Hospital, Hong Kong (M.-H.J.); Department of Cardiology, Nanjing First Hospital, Nanjing Medical University, China (X.-F.G., Z.G., S.-L.C., J.-J.Z.); Hypertension Unit-Heart Institute (InCor), University of Sao Paulo Medical School, Brazil (S.F.F., C.H.G.U., L.F.D.); Department of Respiratory and Critical Care Medicine, Singapore General Hospital, Singapore (T.-H.O.); Sleep Educators, Antioch, CA (G.R.); and Saw Swee Hock School of Public Health, National University of Singapore, Singapore (B.-C.T.)
| | - Rajiv Bharat Kharwar
- From Department of Cardiology, National University Heart Centre, Singapore (C-H.L., G.L., C.-Y.K., P.-F.C., M.Y.C., A.M.R., H.-C.T.); Department of Cardiology, King George's Medical University, Lucknow, India (R.S., S.C., A.M., R.B.K.); Department of Cardiology, Shanghai Chest Hospital, China (R.L., X.-X.Y., W.-W.Z.); Department of Cardiology, Tan Tock Seng Hospital, Singapore (H.-H.H.); No (1) 1000-Bed Defence Services General Hospital, Mingaladon, Yangon, Myanmar (T.H.); Cardiac Medical Unit, Grantham Hospital, Hong Kong (M.-H.J.); Department of Cardiology, Nanjing First Hospital, Nanjing Medical University, China (X.-F.G., Z.G., S.-L.C., J.-J.Z.); Hypertension Unit-Heart Institute (InCor), University of Sao Paulo Medical School, Brazil (S.F.F., C.H.G.U., L.F.D.); Department of Respiratory and Critical Care Medicine, Singapore General Hospital, Singapore (T.-H.O.); Sleep Educators, Antioch, CA (G.R.); and Saw Swee Hock School of Public Health, National University of Singapore, Singapore (B.-C.T.)
| | - Po-Fun Chan
- From Department of Cardiology, National University Heart Centre, Singapore (C-H.L., G.L., C.-Y.K., P.-F.C., M.Y.C., A.M.R., H.-C.T.); Department of Cardiology, King George's Medical University, Lucknow, India (R.S., S.C., A.M., R.B.K.); Department of Cardiology, Shanghai Chest Hospital, China (R.L., X.-X.Y., W.-W.Z.); Department of Cardiology, Tan Tock Seng Hospital, Singapore (H.-H.H.); No (1) 1000-Bed Defence Services General Hospital, Mingaladon, Yangon, Myanmar (T.H.); Cardiac Medical Unit, Grantham Hospital, Hong Kong (M.-H.J.); Department of Cardiology, Nanjing First Hospital, Nanjing Medical University, China (X.-F.G., Z.G., S.-L.C., J.-J.Z.); Hypertension Unit-Heart Institute (InCor), University of Sao Paulo Medical School, Brazil (S.F.F., C.H.G.U., L.F.D.); Department of Respiratory and Critical Care Medicine, Singapore General Hospital, Singapore (T.-H.O.); Sleep Educators, Antioch, CA (G.R.); and Saw Swee Hock School of Public Health, National University of Singapore, Singapore (B.-C.T.)
| | - Shao-Liang Chen
- From Department of Cardiology, National University Heart Centre, Singapore (C-H.L., G.L., C.-Y.K., P.-F.C., M.Y.C., A.M.R., H.-C.T.); Department of Cardiology, King George's Medical University, Lucknow, India (R.S., S.C., A.M., R.B.K.); Department of Cardiology, Shanghai Chest Hospital, China (R.L., X.-X.Y., W.-W.Z.); Department of Cardiology, Tan Tock Seng Hospital, Singapore (H.-H.H.); No (1) 1000-Bed Defence Services General Hospital, Mingaladon, Yangon, Myanmar (T.H.); Cardiac Medical Unit, Grantham Hospital, Hong Kong (M.-H.J.); Department of Cardiology, Nanjing First Hospital, Nanjing Medical University, China (X.-F.G., Z.G., S.-L.C., J.-J.Z.); Hypertension Unit-Heart Institute (InCor), University of Sao Paulo Medical School, Brazil (S.F.F., C.H.G.U., L.F.D.); Department of Respiratory and Critical Care Medicine, Singapore General Hospital, Singapore (T.-H.O.); Sleep Educators, Antioch, CA (G.R.); and Saw Swee Hock School of Public Health, National University of Singapore, Singapore (B.-C.T.)
| | - Mark Y Chan
- From Department of Cardiology, National University Heart Centre, Singapore (C-H.L., G.L., C.-Y.K., P.-F.C., M.Y.C., A.M.R., H.-C.T.); Department of Cardiology, King George's Medical University, Lucknow, India (R.S., S.C., A.M., R.B.K.); Department of Cardiology, Shanghai Chest Hospital, China (R.L., X.-X.Y., W.-W.Z.); Department of Cardiology, Tan Tock Seng Hospital, Singapore (H.-H.H.); No (1) 1000-Bed Defence Services General Hospital, Mingaladon, Yangon, Myanmar (T.H.); Cardiac Medical Unit, Grantham Hospital, Hong Kong (M.-H.J.); Department of Cardiology, Nanjing First Hospital, Nanjing Medical University, China (X.-F.G., Z.G., S.-L.C., J.-J.Z.); Hypertension Unit-Heart Institute (InCor), University of Sao Paulo Medical School, Brazil (S.F.F., C.H.G.U., L.F.D.); Department of Respiratory and Critical Care Medicine, Singapore General Hospital, Singapore (T.-H.O.); Sleep Educators, Antioch, CA (G.R.); and Saw Swee Hock School of Public Health, National University of Singapore, Singapore (B.-C.T.)
| | - Arthur Mark Richards
- From Department of Cardiology, National University Heart Centre, Singapore (C-H.L., G.L., C.-Y.K., P.-F.C., M.Y.C., A.M.R., H.-C.T.); Department of Cardiology, King George's Medical University, Lucknow, India (R.S., S.C., A.M., R.B.K.); Department of Cardiology, Shanghai Chest Hospital, China (R.L., X.-X.Y., W.-W.Z.); Department of Cardiology, Tan Tock Seng Hospital, Singapore (H.-H.H.); No (1) 1000-Bed Defence Services General Hospital, Mingaladon, Yangon, Myanmar (T.H.); Cardiac Medical Unit, Grantham Hospital, Hong Kong (M.-H.J.); Department of Cardiology, Nanjing First Hospital, Nanjing Medical University, China (X.-F.G., Z.G., S.-L.C., J.-J.Z.); Hypertension Unit-Heart Institute (InCor), University of Sao Paulo Medical School, Brazil (S.F.F., C.H.G.U., L.F.D.); Department of Respiratory and Critical Care Medicine, Singapore General Hospital, Singapore (T.-H.O.); Sleep Educators, Antioch, CA (G.R.); and Saw Swee Hock School of Public Health, National University of Singapore, Singapore (B.-C.T.)
| | - Huay-Cheem Tan
- From Department of Cardiology, National University Heart Centre, Singapore (C-H.L., G.L., C.-Y.K., P.-F.C., M.Y.C., A.M.R., H.-C.T.); Department of Cardiology, King George's Medical University, Lucknow, India (R.S., S.C., A.M., R.B.K.); Department of Cardiology, Shanghai Chest Hospital, China (R.L., X.-X.Y., W.-W.Z.); Department of Cardiology, Tan Tock Seng Hospital, Singapore (H.-H.H.); No (1) 1000-Bed Defence Services General Hospital, Mingaladon, Yangon, Myanmar (T.H.); Cardiac Medical Unit, Grantham Hospital, Hong Kong (M.-H.J.); Department of Cardiology, Nanjing First Hospital, Nanjing Medical University, China (X.-F.G., Z.G., S.-L.C., J.-J.Z.); Hypertension Unit-Heart Institute (InCor), University of Sao Paulo Medical School, Brazil (S.F.F., C.H.G.U., L.F.D.); Department of Respiratory and Critical Care Medicine, Singapore General Hospital, Singapore (T.-H.O.); Sleep Educators, Antioch, CA (G.R.); and Saw Swee Hock School of Public Health, National University of Singapore, Singapore (B.-C.T.)
| | - Thun-How Ong
- From Department of Cardiology, National University Heart Centre, Singapore (C-H.L., G.L., C.-Y.K., P.-F.C., M.Y.C., A.M.R., H.-C.T.); Department of Cardiology, King George's Medical University, Lucknow, India (R.S., S.C., A.M., R.B.K.); Department of Cardiology, Shanghai Chest Hospital, China (R.L., X.-X.Y., W.-W.Z.); Department of Cardiology, Tan Tock Seng Hospital, Singapore (H.-H.H.); No (1) 1000-Bed Defence Services General Hospital, Mingaladon, Yangon, Myanmar (T.H.); Cardiac Medical Unit, Grantham Hospital, Hong Kong (M.-H.J.); Department of Cardiology, Nanjing First Hospital, Nanjing Medical University, China (X.-F.G., Z.G., S.-L.C., J.-J.Z.); Hypertension Unit-Heart Institute (InCor), University of Sao Paulo Medical School, Brazil (S.F.F., C.H.G.U., L.F.D.); Department of Respiratory and Critical Care Medicine, Singapore General Hospital, Singapore (T.-H.O.); Sleep Educators, Antioch, CA (G.R.); and Saw Swee Hock School of Public Health, National University of Singapore, Singapore (B.-C.T.)
| | - Glenn Roldan
- From Department of Cardiology, National University Heart Centre, Singapore (C-H.L., G.L., C.-Y.K., P.-F.C., M.Y.C., A.M.R., H.-C.T.); Department of Cardiology, King George's Medical University, Lucknow, India (R.S., S.C., A.M., R.B.K.); Department of Cardiology, Shanghai Chest Hospital, China (R.L., X.-X.Y., W.-W.Z.); Department of Cardiology, Tan Tock Seng Hospital, Singapore (H.-H.H.); No (1) 1000-Bed Defence Services General Hospital, Mingaladon, Yangon, Myanmar (T.H.); Cardiac Medical Unit, Grantham Hospital, Hong Kong (M.-H.J.); Department of Cardiology, Nanjing First Hospital, Nanjing Medical University, China (X.-F.G., Z.G., S.-L.C., J.-J.Z.); Hypertension Unit-Heart Institute (InCor), University of Sao Paulo Medical School, Brazil (S.F.F., C.H.G.U., L.F.D.); Department of Respiratory and Critical Care Medicine, Singapore General Hospital, Singapore (T.-H.O.); Sleep Educators, Antioch, CA (G.R.); and Saw Swee Hock School of Public Health, National University of Singapore, Singapore (B.-C.T.)
| | - Bee-Choo Tai
- From Department of Cardiology, National University Heart Centre, Singapore (C-H.L., G.L., C.-Y.K., P.-F.C., M.Y.C., A.M.R., H.-C.T.); Department of Cardiology, King George's Medical University, Lucknow, India (R.S., S.C., A.M., R.B.K.); Department of Cardiology, Shanghai Chest Hospital, China (R.L., X.-X.Y., W.-W.Z.); Department of Cardiology, Tan Tock Seng Hospital, Singapore (H.-H.H.); No (1) 1000-Bed Defence Services General Hospital, Mingaladon, Yangon, Myanmar (T.H.); Cardiac Medical Unit, Grantham Hospital, Hong Kong (M.-H.J.); Department of Cardiology, Nanjing First Hospital, Nanjing Medical University, China (X.-F.G., Z.G., S.-L.C., J.-J.Z.); Hypertension Unit-Heart Institute (InCor), University of Sao Paulo Medical School, Brazil (S.F.F., C.H.G.U., L.F.D.); Department of Respiratory and Critical Care Medicine, Singapore General Hospital, Singapore (T.-H.O.); Sleep Educators, Antioch, CA (G.R.); and Saw Swee Hock School of Public Health, National University of Singapore, Singapore (B.-C.T.)
| | - Luciano F Drager
- From Department of Cardiology, National University Heart Centre, Singapore (C-H.L., G.L., C.-Y.K., P.-F.C., M.Y.C., A.M.R., H.-C.T.); Department of Cardiology, King George's Medical University, Lucknow, India (R.S., S.C., A.M., R.B.K.); Department of Cardiology, Shanghai Chest Hospital, China (R.L., X.-X.Y., W.-W.Z.); Department of Cardiology, Tan Tock Seng Hospital, Singapore (H.-H.H.); No (1) 1000-Bed Defence Services General Hospital, Mingaladon, Yangon, Myanmar (T.H.); Cardiac Medical Unit, Grantham Hospital, Hong Kong (M.-H.J.); Department of Cardiology, Nanjing First Hospital, Nanjing Medical University, China (X.-F.G., Z.G., S.-L.C., J.-J.Z.); Hypertension Unit-Heart Institute (InCor), University of Sao Paulo Medical School, Brazil (S.F.F., C.H.G.U., L.F.D.); Department of Respiratory and Critical Care Medicine, Singapore General Hospital, Singapore (T.-H.O.); Sleep Educators, Antioch, CA (G.R.); and Saw Swee Hock School of Public Health, National University of Singapore, Singapore (B.-C.T.)
| | - Jun-Jie Zhang
- From Department of Cardiology, National University Heart Centre, Singapore (C-H.L., G.L., C.-Y.K., P.-F.C., M.Y.C., A.M.R., H.-C.T.); Department of Cardiology, King George's Medical University, Lucknow, India (R.S., S.C., A.M., R.B.K.); Department of Cardiology, Shanghai Chest Hospital, China (R.L., X.-X.Y., W.-W.Z.); Department of Cardiology, Tan Tock Seng Hospital, Singapore (H.-H.H.); No (1) 1000-Bed Defence Services General Hospital, Mingaladon, Yangon, Myanmar (T.H.); Cardiac Medical Unit, Grantham Hospital, Hong Kong (M.-H.J.); Department of Cardiology, Nanjing First Hospital, Nanjing Medical University, China (X.-F.G., Z.G., S.-L.C., J.-J.Z.); Hypertension Unit-Heart Institute (InCor), University of Sao Paulo Medical School, Brazil (S.F.F., C.H.G.U., L.F.D.); Department of Respiratory and Critical Care Medicine, Singapore General Hospital, Singapore (T.-H.O.); Sleep Educators, Antioch, CA (G.R.); and Saw Swee Hock School of Public Health, National University of Singapore, Singapore (B.-C.T.)
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138
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Lu XM, Zhang WW, Liu XY. New long-proboscid lacewings of the mid-Cretaceous provide insights into ancient plant-pollinator interactions. Sci Rep 2016; 6:25382. [PMID: 27149436 PMCID: PMC4857652 DOI: 10.1038/srep25382] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2016] [Accepted: 04/15/2016] [Indexed: 11/08/2022] Open
Abstract
Many insects with long-proboscid mouthparts are among the pollinators of seed plants. Several cases of the long-proboscid pollination mode are known between fossil insects (e.g., true flies, scorpionflies, and lacewings) and various extinct gymnosperm lineages, beginning in the Early Permian and increasing during the Middle Jurassic to Early Cretaceous. However, details on the morphology of lacewing proboscides and the relevant pollination habit are largely lacking. Here we report on three lacewing species that belong to two new genera and a described genus from mid-Cretaceous (Albian-Cenomanian) amber of Myanmar. All these species possess relatively long proboscides, which are considered to be modified from maxillary and labial elements, probably functioning as a temporary siphon for feeding on nectar. Remarkably, these proboscides range from 0.4-1.0 mm in length and are attributed to the most diminutive ones among the contemporary long-proboscid insect pollinators. Further, they clearly differ from other long-proboscid lacewings which have a much longer siphon. The phylogenetic analysis indicates that these Burmese long-proboscid lacewings belong to the superfamily Psychopsoidea but cannot be placed into any known family. The present findings represent the first description of the mouthparts of long-proboscid lacewings preserved in amber and highlight the evolutionary diversification of the ancient plant-pollinator interactions.
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Affiliation(s)
- Xiu-Mei Lu
- Department of Entomology, China Agricultural University, Beijing 100193, China
| | - Wei-Wei Zhang
- Three Gorges Entomological Museum, P.O. Box 4680, Chongqing 400015, China
| | - Xing-Yue Liu
- Department of Entomology, China Agricultural University, Beijing 100193, China
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139
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Ma ZG, Lv XD, Zhan LL, Chen L, Zou QY, Xiang JQ, Qin JL, Zhang WW, Zeng ZJ, Jin H, Jiang HX, Lv XP. Human urokinase-type plasminogen activator gene-modified bone marrow-derived mesenchymal stem cells attenuate liver fibrosis in rats by down-regulating the Wnt signaling pathway. World J Gastroenterol 2016; 22:2092-2103. [PMID: 26877613 PMCID: PMC4726681 DOI: 10.3748/wjg.v22.i6.2092] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/02/2015] [Revised: 09/27/2015] [Accepted: 11/24/2015] [Indexed: 02/06/2023] Open
Abstract
AIM: To evaluate the therapeutic effects of bone marrow-derived mesenchymal stem cells (BMSCs) with human urokinase-type plasminogen activator (uPA) on liver fibrosis, and to investigate the mechanism of gene therapy.
METHODS: BMSCs transfected with adenovirus-mediated human urokinase plasminogen activator (Ad-uPA) were transplanted into rats with CCl4-induced liver fibrosis. All rats were sacrificed after 8 wk, and their serum and liver tissue were collected for biochemical, histopathologic, and molecular analyzes. The degree of liver fibrosis was assessed by hematoxylin and eosin or Masson’s staining. Western blot and quantitative reverse transcription-polymerase chain reaction were used to determine protein and mRNA expression levels.
RESULTS: Serum levels of alanine aminotransferase, aminotransferase, total bilirubin, hyaluronic acid, laminin, and procollagen type III were markedly decreased, whereas the levels of serum albumin were increased by uPA gene modified BMSCs treatment. Histopathology revealed that chronic CCl4-treatment resulted in significant fibrosis while uPA gene modified BMSCs treatment significantly reversed fibrosis. By quantitatively analysing the fibrosis area of liver tissue using Masson staining in different groups of animals, we found that model animals with CCl4-induced liver fibrosis had the largest fibrotic area (16.69% ± 1.30%), while fibrotic area was significantly decreased by BMSCs treatment (12.38% ± 2.27%) and was further reduced by uPA-BMSCs treatment (8.31% ± 1.21%). Both protein and mRNA expression of β-catenin, Wnt4 and Wnt5a was down-regulated in liver tissues following uPA gene modified BMSCs treatment when compared with the model animals.
CONCLUSION: Transplantation of uPA gene modified BMSCs suppressed liver fibrosis and ameliorated liver function and may be a new approach to treating liver fibrosis. Furthermore, treatment with uPA gene modified BMSCs also resulted in a decrease in expression of molecules of the Wnt signaling pathway.
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Zhao JL, Pan JS, Guan Y, Zhang WW, Bie BB, Wang YL, He HL, Lian HL, Cai R. Micro-trichome as a class I homeodomain-leucine zipper gene regulates multicellular trichome development in Cucumis sativus. J Integr Plant Biol 2015; 57:925-35. [PMID: 25735194 DOI: 10.1111/jipb.12345] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/27/2014] [Accepted: 02/27/2015] [Indexed: 05/20/2023]
Abstract
Plant trichomes serve as a highly suitable model for investigating cell differentiation at the single-cell level. The regulatory genes involved in unicellular trichome development in Arabidopsis thaliana have been intensively studied, but genes regulating multicellular trichome development in plants remain unclear. Here, we characterized Cucumis sativus (cucumber) trichomes as representative multicellular and unbranched structures, and identified Micro-trichome (Mict), using map-based cloning in an F2 segregating population of 7,936 individuals generated from a spontaneous mict mutant. In mict plants, trichomes in both leaves and fruits, are small, poorly developed, and denser than in the wild type. Sequence analysis revealed that a 2,649-bp genomic deletion, spanning the first and second exons, occurred in a plant-specific class I homeodomain-leucine zipper gene. Tissue-specific expression analysis indicated that Mict is strongly expressed in the trichome cells. Transcriptome profiling identified potential targets of Mict including putative homologs of genes known in other systems to regulate trichome development, meristem determinacy, and hormone responsiveness. Phylogenic analysis charted the relationships among putative homologs in angiosperms. Our paper represents initial steps toward understanding the development of multicellular trichomes.
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Affiliation(s)
- Jun-Long Zhao
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Jun-Song Pan
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Yuan Guan
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Wei-Wei Zhang
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Bei-Bei Bie
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Yun-Li Wang
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Huan-Le He
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Hong-Li Lian
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, China
| | - Run Cai
- School of Agriculture and Biology, Shanghai Jiao Tong University, Shanghai, 200240, China
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141
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Han KQ, He XQ, Ma MY, Guo XD, Zhang XM, Chen J, Han H, Zhang WW, Zhu QG, Zhao WZ. Targeted silencing of CXCL1 by siRNA inhibits tumor growth and apoptosis in hepatocellular carcinoma. Int J Oncol 2015; 47:2131-40. [PMID: 26499374 DOI: 10.3892/ijo.2015.3203] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/22/2015] [Accepted: 09/04/2015] [Indexed: 11/06/2022] Open
Abstract
Hepatocellular carcinoma (HCC) is an aggressive malignancy and a major cause of cancer-related mortality worldwide. Our previous study shows that chemokine (C-X-C motif) ligand 1 (CXCL1) was upregulated and CXCR1 was downregulated in tumor tissues as compared to peritumor tissues by chemotaxis assay. As the status of CXCL subgroups and their receptors affect progression of HCC, we evaluated potential mechanisms of CXCL1 associated with anticancer effects in HCC based on our previous study. The effects of targeting CXCL1 by RNA interference (RNAi) on the proliferation and apoptosis of CBRH-7919 cells were observed in vitro and in vivo. Additionally, whether CXCL1 knockdown significantly reduce the activity of STAT3, NF-κB and HIF-1 or not were also estimated. RNAi of CXCL1 in the CBRH-7919 cells decreased the growth of tumors in nude mice by inhibited cells proliferation and induced apoptosis. In conclusion, these findings suggest that CXCL1 plays critical roles in the growth and apoptosis of HCC. RNAi of CXCL1 inhibits the growth and apoptosis of tumor cells, which indicates that CXCL1 may be a potential molecular target for use in HCC therapy.
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Affiliation(s)
- Ke-Qi Han
- Department of Oncology, Shanghai Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, P.R. China
| | - Xue-Qun He
- Department of Oncology, Shanghai Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, P.R. China
| | - Meng-Yu Ma
- Department of Oncology, Shanghai Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, P.R. China
| | - Xiao-Dong Guo
- Department of Oncology, Shanghai Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, P.R. China
| | - Xue-Min Zhang
- Department of Oncology, Shanghai Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, P.R. China
| | - Jie Chen
- Department of Oncology, Shanghai Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, P.R. China
| | - Hui Han
- Department of Oncology, Shanghai Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, P.R. China
| | - Wei-Wei Zhang
- Department of Oncology, Shanghai Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, P.R. China
| | - Quan-Gang Zhu
- Department of Pharmacy, Shanghai Yueyang Hospital of Integrated Traditional Chinese and Western Medicine, Shanghai University of Traditional Chinese Medicine, Shanghai 200437, P.R. China
| | - Wen-Zhao Zhao
- Department of Surgery, Affiliated Hospital of Henan Science and Technology University, School of Medicine, Luoyang, Henan 471003, P.R. China
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142
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Zhang WW, Xiao X, Gan JK, Zhang XQ, Kong LN, Luo QB. Characterization of HSP70 and its expression in tissue: correlation with physiological and immune indices in goose (Anser cygnoides) serum. Genet Mol Res 2015; 14:12288-98. [PMID: 26505377 DOI: 10.4238/2015.october.9.17] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
We cloned the goose heat shock protein 70 gene (HSP70), to determine its sequence variation and elucidate its mRNA expression. We designed primers to amplify the entire goose HSP70 sequence. We used 10 commercial Wuzong goslings in a heat-stress experiment. We collected tissue samples for RNA extraction and quantitative real-time polymerase chain reaction (qRT-PCR). We analyzed the variation in expression of goose HSP70 before and after heat stress. We constructed a DNA pool from six different species, for single nucleotide polymorphism (SNP) screening. We detected 18 SNPs and selected three of these SNPs for correlation analysis with biological and immune traits in 200 Wuzong geese. We showed that T+237C was significantly correlated with the serum corticosterone level, whereas T+1122C was significantly correlated with the heterophil to lymphocyte ratio. Goose HSP70 contained no introns. The results of qRT-PCR analysis revealed significant gender differences in the expression of goose HSP70 at 40°C but not at 25°C; moreover, in general, expression was significantly higher at 40°C than at 25°C. With the exception of the leg muscle and cerebellum, HSP70 expression was significantly higher in male geese than in female geese. Our results indicate that goose HSP70 plays an important role in response to severe heat stress.
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Affiliation(s)
- W W Zhang
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong, China
| | - X Xiao
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, Guangzhou, Guangdong, China
| | - J K Gan
- Guangdong Provincial Key Lab of Agro-Animal Genomics and Molecular Breeding, Guangzhou, Guangdong, China
| | - X Q Zhang
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong, China
| | - L N Kong
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong, China
| | - Q B Luo
- Department of Animal Genetics, Breeding and Reproduction, College of Animal Science, South China Agricultural University, Guangzhou, Guangdong, China
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143
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Shao SL, Cui TT, Zhao W, Zhang WW, Xie ZL, Wang CH, Jia HS, Liu Q. RNAi-based knockdown of multidrug resistance-associated protein 1 is sufficient to reverse multidrug resistance of human lung cells. Asian Pac J Cancer Prev 2015; 15:10597-601. [PMID: 25605145 DOI: 10.7314/apjcp.2014.15.24.10597] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022] Open
Abstract
Up-regulation of multidrug resistance-associated protein 1 (MRP1) is regarded as one of the main causes for multidrug resistance (MDR) of tumor cells, leading to failure of chemotherapy-based treatment for a multitude of cancers. However, whether silencing the overexpressed MRP1 is sufficient to reverse MDR has yet to be validated. This study demonstrated that RNAi-based knockdown of MRP1 reversed the increased efflux ability and MDR efficiently. Two different short haipin RNAs (shRNAs) targeting MRP1 were designed and inserted into pSilence- 2.1-neo. The shRNA recombinant plasmids were transfected into cis-dichlorodiamineplatinum-resistant A549 lung (A549/DDP) cells, and then shRNA expressing cell clones were collected and maintained. Real time PCR and immunofluorescence staining for MRP1 revealed a high silent efficiency of these two shRNAs. Functionally, shRNA-expressing cells showed increased rhodamine 123 retention in A549/DDP cells, indicating reduced efflux ability of tumor cells in the absence of MRP1. Consistently, MRP1-silent cells exhibited decreased resistance to 3- (4, 5-dimethylthiazol-2-yl)-2, 5-diphenyltetrazolium bromide (MTT) and DDP, suggesting reversal of MDR in these tumor cells. Specifically, MRP1 knockdown increased the DDP-induced apoptosis of A549/DDP cells by increased trapping of their cell cycling in the G2 stage. Taken together, this study demonstrated that RNAi- based silencing of MRP1 is sufficient to reverse MDR in tumor cells, shedding light on possible novel clinical treatment of cancers.
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Affiliation(s)
- Shu-Li Shao
- College of Life Sciences and Agriculture and Forestry, Qiqihar University, Qiqihar, China E-mail :
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144
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Song LC, Gu ZC, Zhang WW, Li QL, Wang YX, Wang HF. Synthesis, Structure, and Electrocatalysis of Butterfly [Fe2SP] Cluster Complexes Relevant to [FeFe]-Hydrogenases. Organometallics 2015. [DOI: 10.1021/acs.organomet.5b00560] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Affiliation(s)
- Li-Cheng Song
- Department of Chemistry, State Key Laboratory of Elemento-Organic
Chemistry, and ‡Collaborative Innovation Center of Chemical Science and Engineering
(Tianjin), Nankai University, Tianjin 300071, China
| | - Zhen-Chao Gu
- Department of Chemistry, State Key Laboratory of Elemento-Organic
Chemistry, and ‡Collaborative Innovation Center of Chemical Science and Engineering
(Tianjin), Nankai University, Tianjin 300071, China
| | - Wei-Wei Zhang
- Department of Chemistry, State Key Laboratory of Elemento-Organic
Chemistry, and ‡Collaborative Innovation Center of Chemical Science and Engineering
(Tianjin), Nankai University, Tianjin 300071, China
| | - Qian-Li Li
- Department of Chemistry, State Key Laboratory of Elemento-Organic
Chemistry, and ‡Collaborative Innovation Center of Chemical Science and Engineering
(Tianjin), Nankai University, Tianjin 300071, China
| | - Yong-Xiang Wang
- Department of Chemistry, State Key Laboratory of Elemento-Organic
Chemistry, and ‡Collaborative Innovation Center of Chemical Science and Engineering
(Tianjin), Nankai University, Tianjin 300071, China
| | - Hong-Fa Wang
- Department of Chemistry, State Key Laboratory of Elemento-Organic
Chemistry, and ‡Collaborative Innovation Center of Chemical Science and Engineering
(Tianjin), Nankai University, Tianjin 300071, China
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145
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Zhang WW, Wang YP, Wang YQ, Ji XM, Zhang MY. Effects of different anesthetic approaches on postoperative complications in HIV-infected patients. Genet Mol Res 2015; 14:9130-5. [PMID: 26345845 DOI: 10.4238/2015.august.7.22] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
The aim of this study was to investigate the effects of three different methods of anesthesia on patients with human immunodeficiency virus (HIV) infection, which could lead to an improvement in postoperative outcomes in these patients. A total of 90 patients undergoing an operation while being treated for an HIV infection were included in this study. Patients were divided into three groups (N = 30/group) based on the type of anesthesia administered: general anesthesia, local anesthesia, and combined spinal epidural anesthesia (CSEA). The effects of local infiltration of anesthesia and peripheral nerve block local anesthesia were examined in the local anesthesia group. The CSEA group examined the effects of spinal anesthesia in HIV-infected patients. We compared the vital signs of the three groups during the preoperative period, at incision, and during the postoperative recovery period. The CSEA group had a significantly higher mean preoperative CD4(+) T lymphocyte count compared with the general anesthesia and local anesthesia groups (P < 0.05). We found that the three kinds of anesthesia methods administered to HIV-infected patients could be used with considerable safety and can be selected according to the clinical need and type of surgical procedure.
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Affiliation(s)
- W W Zhang
- Department of Anesthesia, Medical College Affiliated Hospital of Binzhou, Shandong, China
| | - Y P Wang
- Department of Electromyography, Medical College Affiliated Hospital of Binzhou, Shandong, China
| | - Y Q Wang
- Department of Anesthesia, Medical College Affiliated Hospital of Binzhou, Shandong, China
| | - X M Ji
- Department of Radiation Oncology, Beijing Chao Yang Hospital, Capital Medical University, Beijing, China
| | - M Y Zhang
- Department of Anesthesia,Shangdong Province-owned Hospital, Shandong, China
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146
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Lu M, Zhang PJ, Li CH, Lv ZM, Zhang WW, Jin CH. miRNA-133 augments coelomocyte phagocytosis in bacteria-challenged Apostichopus japonicus via targeting the TLR component of IRAK-1 in vitro and in vivo. Sci Rep 2015. [PMID: 26223836 PMCID: PMC4519775 DOI: 10.1038/srep12608] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
In this study, we explored the potential roles of miRNA-133 in regulating TLR pathways in the sea cucumber Apostichopus japonicus. Target screening of RNA-Seq data successfully identified interleukin-1 receptor-associated kinase (AjIRAK−1) as a putative target of miR-133. This result was further validated by negative expression profiles in Vibrio splendidus-challenged coelomocytes and lipopolysaccharide (LPS)-exposed cell cultures. HEK-293T cells transfected with a dual-luciferase reporter fused to the 3′UTR of wild-type or mutant AjIRAK-1 exhibited a 52.9% reduction in luciferase activity (p < 0.01) compared to controls. Co-infection with a miR-133 mimics or a specific siRNA targeting AjIRAK-1 significantly repressed the mRNA and protein expression levels of AjIRAK-1 and its downstream molecules, such as AjTRAF6 and Ajp105, in primary coelomocytes. In contrast, a miR-133 inhibitor significantly increased the expression of these TLR pathway members. The injection of miR-133 agomir or AjIRAK-1 siRNA into sea cucumbers not only decreased the expression of AjIRAK-1 and its downstream molecules but also significantly increased V. splendidus coelomocyte phagocytosis. All of the present data provide direct evidence that miR-133 is involved in TLR cascade modulation through AjIRAK-1 targeting to promote V. splendidus coelomocyte phagocytosis in these non-model invertebrates.
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Affiliation(s)
- Meng Lu
- School of Marine Sciences, Ningbo University, Ningbo, Zhejiang Province 315211, P.R China
| | - Peng-Juan Zhang
- School of Marine Sciences, Ningbo University, Ningbo, Zhejiang Province 315211, P.R China
| | - Cheng-Hua Li
- School of Marine Sciences, Ningbo University, Ningbo, Zhejiang Province 315211, P.R China
| | - Zhi-Meng Lv
- School of Marine Sciences, Ningbo University, Ningbo, Zhejiang Province 315211, P.R China
| | - Wei-Wei Zhang
- School of Marine Sciences, Ningbo University, Ningbo, Zhejiang Province 315211, P.R China
| | - Chun-Hua Jin
- School of Marine Sciences, Ningbo University, Ningbo, Zhejiang Province 315211, P.R China
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147
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Zhang WW, Wang X, Xie P, Yuan ST, Liu QH. Anthrax lethal toxin suppresses high glucose induced VEGF over secretion through a post-translational mechanism. Int J Ophthalmol 2015; 8:453-8. [PMID: 26085990 DOI: 10.3980/j.issn.2222-3959.2015.03.04] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2014] [Accepted: 12/29/2014] [Indexed: 11/02/2022] Open
Abstract
AIM To prove anthrax lethal toxin (LeTx) blocks the mitogen activated protein kinases (MAPKs) activation by degrading the MAPK/ERK kinases (MEKs) to suppress vascular endothelial growth factor (VEGF) secretion. METHODS Human adult retinal pigmented epithelium (ARPE) cells were cultured and treated with normal glucose, high glucose or high glucose with LeTx for additional 24, 48 or 72h for viable cell count. Total RNA from the ARPE was isolated for reverse transcription polymerase chain reaction (RT-PCR). The conditioned medium of ARPE cells treated in different group for 48h was filtered and diluted to detect the concentration of VEGF by enzyme-linked immunosorbant assays. Evaluate the role of MEK/MAPK pathway in the secretion of VEGF by immunoblotting. RESULTS In this study, we proved high glucose induced activation of the MAPK extracellular signal-regulated kinase (ERK1/2) and p38 in the ARPE cell line was blocked by anthrax LeTx. LeTx also inhibited high glucose induced ARPE cell over proliferation. CONCLUSION LeTx suppressed high glucose induced VEGF over secretion in the ARPE cells, mainly through a post-translational mechanism.
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Affiliation(s)
- Wei-Wei Zhang
- Department of Ophthalmology, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, Jiangsu Province, China
| | - Xin Wang
- Department of Endocrinology, Jiangsu Province Hospital of TCM, Nanjing 210029, Jiangsu Province, China
| | - Ping Xie
- Department of Ophthalmology, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, Jiangsu Province, China
| | - Song-Tao Yuan
- Department of Ophthalmology, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, Jiangsu Province, China
| | - Qing-Huai Liu
- Department of Ophthalmology, the First Affiliated Hospital of Nanjing Medical University, Nanjing 210029, Jiangsu Province, China
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148
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Zhao D, Long XD, Lu TF, Wang T, Zhang WW, Liu YX, Cui XL, Dai HJ, Xue F, Xia Q. Metformin decreases IL-22 secretion to suppress tumor growth in an orthotopic mouse model of hepatocellular carcinoma. Int J Cancer 2015; 136:2556-65. [PMID: 25370454 DOI: 10.1002/ijc.29305] [Citation(s) in RCA: 59] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2014] [Accepted: 10/21/2014] [Indexed: 12/17/2022]
Abstract
Epidemiological, preclinical and cellular studies in the last 5 years have shown that metformin exerts anti-tumoral properties, but its mode of action in cancer remains unclear. Here, we investigated the effects of metformin on a mouse hepatocellular carcinoma (HCC) model and tumor-associated T cell immune responses. Oral metformin administration led to a significant reduction of tumor growth, which was accompanied by decreased interleukin-22 (IL-22). Meanwhile, IL-22-induced STAT3 phosphorylation and upregulation of downstream genes Bcl-2 and cyclin D1 were inhibited by metformin. At the cellular level, metformin attenuated Th1- and Th17-derived IL-22 production. Furthermore, metformin inhibited de novo generation of Th1 and Th17 cells from naive CD4(+) cells. These observations were further supported by the fact that metformin treatment inhibited CD3/CD28-induced IFN-γ and IL-17A expression along with the transcription factors that drive their expression (T-bet [Th1] and ROR-γt [Th17], respectively). The effects of metformin on T cell differentiation were mediated by downregulated STAT3 and STAT4 phosphorylation via the AMP-activated kinase-mammalian target of rapamycin complex 1 pathway. Notably, metformin led to a reduction in glucose transporter Glut1 expression, resulting in less glucose uptake, which is critical to regulate CD4(+) T cell fate. Taken together, these findings provide evidence for the growth-inhibitory and immune-modulatory effects of metformin in HCC and thus, broaden our understanding about the action of metformin in liver cancer treatment.
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Affiliation(s)
- Dong Zhao
- Department of Liver Surgery, Renji Hospital, School of Medicine, Shanghai Jiao Tong University, Shanghai, China
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149
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Jiang YL, Yuan HL, Zhang WW, Liu HC, Zhang YM, Xiong X, Xu JX, Lu S, Lu T, Chen YD. De Novo Design of High Potent DPP-IV Inhibitors Based on the Scaffold of Cyanopyrrolidine. LETT DRUG DES DISCOV 2015. [DOI: 10.2174/1570180812666141201223016] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
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150
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Zhang WW, Yang XL, Jia JQ, Wang N, Hu CL, Yu XQ. Surfactant-activated magnetic cross-linked enzyme aggregates (magnetic CLEAs) of Thermomyces lanuginosus lipase for biodiesel production. ACTA ACUST UNITED AC 2015. [DOI: 10.1016/j.molcatb.2015.02.003] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/24/2022]
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