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Wang S, Xie Y, Yang X, Wang X, Yan K, Zhong Z, Wang X, Xu Y, Zhang Y, Liu F, Shen J. Therapeutic potential of recombinant cystatin from Schistosoma japonicum in TNBS-induced experimental colitis of mice. Parasit Vectors 2016; 9:6. [PMID: 26728323 PMCID: PMC4700642 DOI: 10.1186/s13071-015-1288-1] [Citation(s) in RCA: 61] [Impact Index Per Article: 7.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/23/2015] [Accepted: 12/28/2015] [Indexed: 12/22/2022] Open
Abstract
Background Helminth infections and their components have been shown to have a protective effect on autoimmune diseases. The isolated purified protein from Schisotosoma japonicum and its potential therapeutic effect on trinitrobenzene sulfonic acid (TNBS)-induced colitis could provide an alternative way to treat inflammatory bowel disease (IBDs). Methods Colitis was induced in Balb/c mice by rectal administration of 2.5 % TNBS, followed by intraperitoneal injection of rSjcystatin 50 μg at 6 h and 24 h afterwards. The inflammation was monitored by recording weight change, stool character and bleeding, colon length, macroscopic score (MAO), microscopic score (MIO), myeloperoxidase activity (MPO) and disease activity index (DAI). The potential underlying mechanism was investigated by examining cytokine profiles including Th1 (IFNγ), Th2 (IL-4), Th17 (IL-17A) and Treg subsets from lymphocytes of spleen, mesenteric lymph nodes (MLN) and intestinal lamina propria mononuclear cells (LPMCs) by flow cytometry. The mRNA relative expressions of the cytokines in splenocytes and MLN were analysed by quantitative real time reverse-transcriptase polymerase chain reaction (qRT-PCR). Simultaneously, the concentrations of the cytokines in the colon homogenate supernatants were tested by enzyme-linked immunosorbent assay (ELISA) and key transcription factors were detected by Western blotting. Results Administration of rSjcystatin significantly reduced inflammatory parameters and ameliorated the severity of the TNBS-induced colitis through decreasing IFNγ in three organs and lifting the level of IL-4, IL-13, IL-10, and TGF-β in the colon tissues, with uptrending Tregs in the MLN and LPMC. Conclusion The findings provide evidence that rSjcystatin has a therapeutic potential for diminishing colitis inflammation in Balb/c mice. The immunological mechanism may involve the down-regulation of Th1 response and up-regulation of Th2 and Tregs in the MLN and colon.
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Affiliation(s)
- Shushu Wang
- Department of Immunology, Anhui Medical University, Hefei, 230022, China. .,Department of Pathogen Biology, Provincial Laboratories of Pathogen Biology and Zoonoses Anhui, Hefei, 230022, China. .,Pediatrics Department of Affiliated Provincial Hospital, Anhui Medical University, Hefei, 230001, China.
| | - Yuanyuan Xie
- Department of Immunology, Anhui Medical University, Hefei, 230022, China. .,Department of Pathogen Biology, Provincial Laboratories of Pathogen Biology and Zoonoses Anhui, Hefei, 230022, China.
| | - Xiaodi Yang
- Department of Microbiology and Parasitology, Bengbu Medical College; Anhui Key Laboratory of Infection and Immunity, Bengbu, 233000, Anhui, China.
| | - Xuesong Wang
- Pediatrics Department of Affiliated Provincial Hospital, Anhui Medical University, Hefei, 230001, China.
| | - Ke Yan
- Department of Laboratory Diagnosis, the Affiliated Hospital of Bengbu Medical College, Bengbu, 233004, China.
| | - Zhengrong Zhong
- Department of Laboratory Diagnosis, the Affiliated Hospital of Bengbu Medical College, Bengbu, 233004, China.
| | - Xiaowei Wang
- Department of Laboratory Diagnosis, the First Affiliated Hospital of Anhui Medical University, Hefei, 230022, China.
| | - Yuanhong Xu
- Department of Laboratory Diagnosis, the First Affiliated Hospital of Anhui Medical University, Hefei, 230022, China.
| | - Yi Zhang
- Department of Immunology, Anhui Medical University, Hefei, 230022, China. .,Department of Pathogen Biology, Provincial Laboratories of Pathogen Biology and Zoonoses Anhui, Hefei, 230022, China.
| | - Fang Liu
- Department of Immunology, Anhui Medical University, Hefei, 230022, China. .,Department of Pathogen Biology, Provincial Laboratories of Pathogen Biology and Zoonoses Anhui, Hefei, 230022, China.
| | - Jilong Shen
- Department of Immunology, Anhui Medical University, Hefei, 230022, China. .,Department of Pathogen Biology, Provincial Laboratories of Pathogen Biology and Zoonoses Anhui, Hefei, 230022, China.
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Chen P, Zhong Z, Jia H, Zhou J, Han J, Liu X, Qiu J. Magnetic field enhanced upconversion luminescence and magnetic–optical hysteresis behaviors in NaYF4: Yb, Ho nanoparticles. RSC Adv 2016. [DOI: 10.1039/c5ra25657g] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
A magnetic field induces the enhancement of upconversion luminescence and magnetic–optical hysteresis behaviors in NaYF4: 20% Yb, 1% Ho nanoparticles.
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Affiliation(s)
- P. Chen
- State Key Laboratory of Modern Optical Instrumentation
- School of Materials Science and Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - Z. Zhong
- Wuhan National High Magnetic Field Center
- Huazhong University of Science and Technology
- Wuhan 430074
- China
| | - H. Jia
- College of Physical and Electronic Information
- Luoyang Normal College
- Luoyang
- P. R. China
| | - J. Zhou
- College of Materials Science and Engineering
- China Jiliang University
- Hangzhou 310018
- China
| | - J. Han
- Wuhan National High Magnetic Field Center
- Huazhong University of Science and Technology
- Wuhan 430074
- China
| | - X. Liu
- State Key Laboratory of Modern Optical Instrumentation
- School of Materials Science and Engineering
- Zhejiang University
- Hangzhou 310027
- China
| | - J. Qiu
- State Key Laboratory of Modern Optical Instrumentation
- School of Materials Science and Engineering
- Zhejiang University
- Hangzhou 310027
- China
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Yao W, Dai W, Jiang L, Lay EYA, Zhong Z, Ritchie RO, Li X, Ke H, Lane NE. Sclerostin-antibody treatment of glucocorticoid-induced osteoporosis maintained bone mass and strength. Osteoporos Int 2016; 27:283-294. [PMID: 26384674 PMCID: PMC4958115 DOI: 10.1007/s00198-015-3308-6] [Citation(s) in RCA: 79] [Impact Index Per Article: 9.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/11/2015] [Accepted: 08/25/2015] [Indexed: 12/18/2022]
Abstract
UNLABELLED This study was to determine if antibody against sclerostin (Scl-Ab) could prevent glucocorticoid (GC)-induced osteoporosis in mice. We found that Scl-Ab prevented GC-induced reduction in bone mass and bone strength and that the anabolic effects of Scl-Ab might be partially achieved through the preservation of osteoblast activity through autophagy. INTRODUCTION Glucocorticoids (GCs) inhibit bone formation by altering osteoblast and osteocyte cell activity and lifespan. A monoclonal antibody against sclerostin, Scl-Ab, increased bone mass in both preclinical animal and clinical studies in subjects with low bone mass. The objectives of this study were to determine if treatment with the Scl-Ab could prevent loss of bone mass and strength in a mouse model of GC excess and to elucidate if Scl-Ab modulated bone cell activity through autophagy. METHODS We generated reporter mice that globally expressed dsRed fused to LC3, a protein marker for autophagosomes, and evaluated the dose-dependent effects of GCs (0, 0.8, 2.8, and 4 mg/kg/day) and Scl-Ab on autophagic osteoblasts, bone mass, and bone strength. RESULTS GC treatment at 2.8 and 4 mg/kg/day of methylprednisolone significantly lowered trabecular bone volume (Tb-BV/TV) at the lumbar vertebrae and distal femurs, cortical bone mass at the mid-shaft femur (FS), and cortical bone strength compared to placebo (PL). In mice treated with GC and Scl-Ab, Tb-BV/TV increased by 60-125 %, apparent bone strength of the lumbar vertebrae by 30-70 %, FS-BV by 10-18 %, and FS-apparent strength by 13-15 %, as compared to GC vehicle-treated mice. GC treatment at 4 mg/kg/day reduced the number of autophagic osteoblasts by 70 % on the vertebral trabecular bone surface compared to the placebo group (PL, GC 0 mg), and GC + Scl-Ab treatment. CONCLUSIONS Treatment with Scl-Ab prevented GC-induced reduction in both trabecular and cortical bone mass and strength and appeared to maintain osteoblast activity through autophagy.
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Affiliation(s)
- W. Yao
- Center for Musculoskeletal Health, Internal Medicine, University of California at Davis Medical Center, Sacramento, CA 95817, USA
| | - W. Dai
- Center for Musculoskeletal Health, Internal Medicine, University of California at Davis Medical Center, Sacramento, CA 95817, USA
- Science and Technology Experimental Center, Integrative Medicine Discipline, Longhua Hospital Shanghai University of Traditional Chinese Medicine, Shanghai 200032, China
| | - L. Jiang
- Center for Musculoskeletal Health, Internal Medicine, University of California at Davis Medical Center, Sacramento, CA 95817, USA
| | - E. Y.-A. Lay
- Center for Musculoskeletal Health, Internal Medicine, University of California at Davis Medical Center, Sacramento, CA 95817, USA
| | - Z. Zhong
- Center for Musculoskeletal Health, Internal Medicine, University of California at Davis Medical Center, Sacramento, CA 95817, USA
| | - R. O. Ritchie
- Department of Materials Science and Engineering, University of California at Berkeley, Berkeley, CA 94720, USA
| | - X. Li
- Department of Metabolic Disorders, Amgen Inc., Thousand Oaks, CA, USA
| | - H. Ke
- Department of Metabolic Disorders, Amgen Inc., Thousand Oaks, CA, USA
| | - N. E. Lane
- Center for Musculoskeletal Health, Internal Medicine, University of California at Davis Medical Center, Sacramento, CA 95817, USA
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Lantz G, Hajlaoui M, Papalazarou E, Jacques VLR, Mazzotti A, Marsi M, Lupi S, Amati M, Gregoratti L, Si L, Zhong Z, Held K. Surface Effects on the Mott-Hubbard Transition in Archetypal V{2}O{3}. Phys Rev Lett 2015; 115:236802. [PMID: 26684133 DOI: 10.1103/physrevlett.115.236802] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/08/2015] [Indexed: 06/05/2023]
Abstract
We present an experimental and theoretical study exploring surface effects on the evolution of the metal-insulator transition in the model Mott-Hubbard compound Cr-doped V{2}O{3}. We find a microscopic domain formation that is clearly affected by the surface crystallographic orientation. Using scanning photoelectron microscopy and x-ray diffraction, we find that surface defects act as nucleation centers for the formation of domains at the temperature-induced isostructural transition and favor the formation of microscopic metallic regions. A density-functional theory plus dynamical mean-field theory study of different surface terminations shows that the surface reconstruction with excess vanadyl cations leads to doped, and hence more metallic, surface states, which explains our experimental observations.
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Affiliation(s)
- G Lantz
- Laboratoire de Physique des Solides, CNRS-UMR 8502, Université Paris-Sud, F-91405 Orsay, France
| | - M Hajlaoui
- Laboratoire de Physique des Solides, CNRS-UMR 8502, Université Paris-Sud, F-91405 Orsay, France
| | - E Papalazarou
- Laboratoire de Physique des Solides, CNRS-UMR 8502, Université Paris-Sud, F-91405 Orsay, France
| | - V L R Jacques
- Laboratoire de Physique des Solides, CNRS-UMR 8502, Université Paris-Sud, F-91405 Orsay, France
| | - A Mazzotti
- Laboratoire de Physique des Solides, CNRS-UMR 8502, Université Paris-Sud, F-91405 Orsay, France
| | - M Marsi
- Laboratoire de Physique des Solides, CNRS-UMR 8502, Université Paris-Sud, F-91405 Orsay, France
| | - S Lupi
- Dipartimento di Fisica, Università di Roma La Sapienza, Piazzale Aldo Moro, I-00185 Roma, Italy
| | - M Amati
- Elettra-Sincrotrone Trieste SCpA, SS 14 km 163.5 AREA Science Park, 34149 Basovizza, Trieste, Italy
| | - L Gregoratti
- Elettra-Sincrotrone Trieste SCpA, SS 14 km 163.5 AREA Science Park, 34149 Basovizza, Trieste, Italy
| | - L Si
- Institute for Solid State Physics, Vienna University of Technology, AT-1040 Vienna, Austria
| | - Z Zhong
- Institute for Solid State Physics, Vienna University of Technology, AT-1040 Vienna, Austria
- Institute for Theoretical and Astrophysics, University of Würzburg, Am Hubland, 9704 Würzburg, Germany
| | - K Held
- Institute for Solid State Physics, Vienna University of Technology, AT-1040 Vienna, Austria
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Li Q, Zhong Y, Chen K, Zhong Z, Pan J. Identifying risk factors for child neglect in rural areas of western China. Child Care Health Dev 2015; 41:895-902. [PMID: 26334451 DOI: 10.1111/cch.12283] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [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: 03/03/2015] [Revised: 07/03/2015] [Accepted: 07/15/2015] [Indexed: 12/01/2022]
Abstract
BACKGROUND Children who are neglected can experience serious and lifelong consequences. Earlier identification of children at risk for child neglect might reduce the individual, medical and societal costs. METHODS A cross-sectional survey using multi-stage stratified cluster random sampling was conducted in Shaanxi and Chongqing from September 2012 to April 2013. The child neglect was measured by scale on child neglect in Rural China. The neglect rates between groups were compared with a chi-squared test. Factors possibly associated with neglect were analysed with binary logistic regression. All analyses were conducted in 2014. RESULTS A total of 4131 eligible participants (2094 boys and 2037 girls) from 21 schools were recruited. The overall prevalence of child neglect was 55.50%. Significant differences were found between children of Han nationality (53.07%) and children of minorities (68.76%) (P < 0.01); un-left-behind children (49.10%) and left-behind children (61.65%) (P < 0.01); first-born children (52.90%) and non-first-born children (59.04%) (P < 0.01); and children from one-child families (47.87%) and children from multi-child families (58.20%) (P < 0.01). Protective factors included one-child families, being a girl and having a father with higher education. However, factors such as being left behind; being from a minority, step family or one-parent family; or having a mother who rarely returns home placed children at increased risk of neglect. CONCLUSIONS The neglect rate of school-aged children in rural areas of western China is much higher than that in urban areas and eastern China. Children belonging to minorities, step families and multi-child families, whose mother seldom goes home, are at a higher risk of being neglected. The left-behind children deserve more attention from government and researchers.
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Affiliation(s)
- Q Li
- School of Public Health and Management, Chongqing Medical University, Chongqing, China.,Research Center for Medicine and Social Development, Chongqing, China.,Innovation Center for Social Risk Governance in Health, Chongqing, China
| | - Y Zhong
- School of Public Health and Management, Chongqing Medical University, Chongqing, China.,Research Center for Medicine and Social Development, Chongqing, China.,Innovation Center for Social Risk Governance in Health, Chongqing, China
| | - K Chen
- School of Public Health and Management, Chongqing Medical University, Chongqing, China.,Research Center for Medicine and Social Development, Chongqing, China.,Innovation Center for Social Risk Governance in Health, Chongqing, China
| | - Z Zhong
- School of Public Health and Management, Chongqing Medical University, Chongqing, China.,Research Center for Medicine and Social Development, Chongqing, China.,Innovation Center for Social Risk Governance in Health, Chongqing, China
| | - J Pan
- Faculty of Public Health, Medical college of Xi'an Jiaotong University, Shaanxi, China
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56
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Zhong Z, Gu X, Iyengar P, Mao W, Guo X, Wang J. A Multi-organ Meshing Method for Sliding Motion Modeling in 4D-CBCT Reconstruction. Int J Radiat Oncol Biol Phys 2015. [DOI: 10.1016/j.ijrobp.2015.07.280] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
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Sun H, Zhu A, Zhang L, Zhang J, Zhong Z, Wang F. Knockdown of PKM2 Suppresses Tumor Growth and Invasion in Lung Adenocarcinoma. Int J Mol Sci 2015; 16:24574-87. [PMID: 26501265 PMCID: PMC4632765 DOI: 10.3390/ijms161024574] [Citation(s) in RCA: 43] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/27/2015] [Revised: 09/22/2015] [Accepted: 09/23/2015] [Indexed: 11/16/2022] Open
Abstract
Accumulating evidence shows that activity of the pyruvate kinase M2 (PKM2) isoform is closely related to tumorigenesis. In this study, we investigated the relationship between PKM2 expression, tumor invasion, and the prognosis of patients with lung adenocarcinoma. We retrospectively analyzed 65 cases of patients with lung adenocarcinoma who were divided into low and a high expression groups based on PKM2 immunohistochemical staining. High PKM2 expression was significantly associated with reduced patient survival. We used small interfering RNA (siRNA) technology to investigate the effect of targeted PKM2-knockout on tumor growth at the cellular level. In vitro, siRNA-mediated PKM2-knockdown significantly inhibited the proliferation, glucose uptake (25%), ATP generation (20%) and fatty acid synthesis of A549 cells, while the mitochondrial respiratory capacity of the cells increased (13%).Western blotting analysis showed that PKM2-knockout significantly inhibited the expression of the glucose transporter GLUT1 and ATP citrate lyase, which is critical for fatty acid synthesis. Further Western blotting analysis showed that PKM2-knockdown inhibited the expression of matrix metalloproteinase 2 (MMP-2) and vascular endothelial growth factor (VEGF), which are important in degradation of the extracellular matrix and angiogenesis, respectively. These observations show that PKM2 activates both glycolysis and lipid synthesis, thereby regulating cell proliferation and invasion. This information is important in elucidating the mechanisms by which PKM2 influences the growth and metastasis of lung adenocarcinoma at the cellular and molecular level, thereby providing the basic data required for the development of PKM2-targeted gene therapy.
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Affiliation(s)
- Hong Sun
- Department of Clinical Laboratory Science, the First Affiliated Hospital of Bengbu Medical College, Bengbu 233004, China.
| | - Anyou Zhu
- Department of Clinical Laboratory Science, the First Affiliated Hospital of Bengbu Medical College, Bengbu 233004, China.
| | - Lunjun Zhang
- Department of Clinical Laboratory Science, the First Affiliated Hospital of Bengbu Medical College, Bengbu 233004, China.
| | - Jie Zhang
- Department of Pathology, Shanghai Chest Hospital, Shanghai Jiaotong University, Shanghai 200030, China.
| | - Zhengrong Zhong
- Department of Clinical Laboratory Science, the First Affiliated Hospital of Bengbu Medical College, Bengbu 233004, China.
| | - Fengchao Wang
- Department of Clinical Laboratory Science, the First Affiliated Hospital of Bengbu Medical College, Bengbu 233004, China.
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Wu YL, Zhou C, Liam CK, Wu G, Liu X, Zhong Z, Lu S, Cheng Y, Han B, Chen L, Huang C, Qin S, Zhu Y, Pan H, Liang H, Li E, Jiang G, How SH, Fernando MCL, Zhang Y, Xia F, Zuo Y. First-line erlotinib versus gemcitabine/cisplatin in patients with advanced EGFR mutation-positive non-small-cell lung cancer: analyses from the phase III, randomized, open-label, ENSURE study. Ann Oncol 2015; 26:1883-1889. [PMID: 26105600 DOI: 10.1093/annonc/mdv270] [Citation(s) in RCA: 538] [Impact Index Per Article: 59.8] [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: 02/20/2015] [Accepted: 06/04/2015] [Indexed: 02/05/2023] Open
Abstract
BACKGROUND The phase III, randomized, open-label ENSURE study (NCT01342965) evaluated first-line erlotinib versus gemcitabine/cisplatin (GP) in patients from China, Malaysia and the Philippines with epidermal growth factor receptor (EGFR) mutation-positive non-small-cell lung cancer (NSCLC). PATIENTS AND METHODS Patients ≥18 years old with histologically/cytologically confirmed stage IIIB/IV EGFR mutation-positive NSCLC and Eastern Cooperative Oncology Group performance status 0-2 were randomized 1:1 to receive erlotinib (oral; 150 mg once daily until progression/unacceptable toxicity) or GP [G 1250 mg/m(2) i.v. days 1 and 8 (3-weekly cycle); P 75 mg/m(2) i.v. day 1, (3-weekly cycle) for up to four cycles]. Primary end point: investigator-assessed progression-free survival (PFS). Other end points include objective response rate (ORR), overall survival (OS), and safety. RESULTS A total of 217 patients were randomized: 110 to erlotinib and 107 to GP. Investigator-assessed median PFS was 11.0 months versus 5.5 months, erlotinib versus GP, respectively [hazard ratio (HR), 0.34, 95% confidence interval (CI) 0.22-0.51; log-rank P < 0.0001]. Independent Review Committee-assessed median PFS was consistent (HR, 0.42). Median OS was 26.3 versus 25.5 months, erlotinib versus GP, respectively (HR, 0.91, 95% CI 0.63-1.31; log-rank P = .607). ORR was 62.7% for erlotinib and 33.6% for GP. Treatment-related serious adverse events (AEs) occurred in 2.7% versus 10.6% of erlotinib and GP patients, respectively. The most common grade ≥3 AEs were rash (6.4%) with erlotinib, and neutropenia (25.0%), leukopenia (14.4%), and anemia (12.5%) with GP. CONCLUSION These analyses demonstrate that first-line erlotinib provides a statistically significant improvement in PFS versus GP in Asian patients with EGFR mutation-positive NSCLC (NCT01342965).
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Affiliation(s)
- Y-L Wu
- Guangdong Lung Cancer Institute, Guangdong General Hospital and Guangdong Academy of Medical Sciences, Guangzhou.
| | - C Zhou
- Department of Oncology, Shanghai Pulmonary Hospital, Tongji University School of Medicine, Shanghai, China
| | - C-K Liam
- Department of Medicine, Faculty of Medicine, University of Malaya, Kuala Lumpur, Malaysia
| | - G Wu
- Cancer Center of Union Hospital, Tongji Medical College, Huzhong University of Science and Technology, Wuhan
| | - X Liu
- Department of Internal Medicine Tumor, Academy of Military Medical Sciences Affiliated Hospital (307 Hospital of PLA), Beijing
| | - Z Zhong
- Cancer Centre, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing
| | - S Lu
- Department of Lung Cancer, Shanghai Chest Hospital, Shanghai
| | - Y Cheng
- Jilin Cancer Hospital, Changchun
| | - B Han
- Department of Lung Cancer, Shanghai Chest Hospital, Shanghai
| | - L Chen
- Department of Medical Oncology, Cancer Hospital of Shantou University Medical College, Shantou
| | - C Huang
- Fujian Provincial Tumor Hospital, Fujian
| | - S Qin
- Nanjing Bayi Hospital, Nanjing
| | - Y Zhu
- Department of Lung Cancer, Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing
| | - H Pan
- Department of Oncology, Sir Run Run Shaw Hospital Affiliated to Zhejiang University School of Medicine, Hangzhou
| | - H Liang
- Affiliated Xinan Hospital of Third Military Medical University, Chongqing
| | - E Li
- First Affiliated Hospital, Medical School Xi'an Jiaotong University, Xi'an
| | - G Jiang
- Cancer Hospital, Fudan University, Shanghai, China
| | - S H How
- Department of Medicine, International Islamic University Malaysia, Kuala Lumpur, Malaysia
| | | | - Y Zhang
- Roche (China) Holding Ltd, Shanghai, China
| | - F Xia
- Roche (China) Holding Ltd, Shanghai, China
| | - Y Zuo
- Roche (China) Holding Ltd, Shanghai, China
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Zhong Z, Zhong M, Lu Y, Lu L, Wang J, Xu D, Wang F, Xu G, Chen J. Identification of mutations in U2HR in two Chinese families with Marie Unna hereditary hypotrichosis. Clin Exp Dermatol 2015; 41:175-8. [PMID: 26269244 DOI: 10.1111/ced.12711] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 12/11/2014] [Indexed: 12/01/2022]
Abstract
Marie Unna hereditary hypotrichosis (MUHH) is a rare autosomal dominant genodermatosis characterized by coarse, wiry, twisted hair developing during early childhood, with subsequent progressive hair loss. Recently, mutations in U2HR, an inhibitory upstream open reading frame in the 5' untranslated region of the human hairless gene (HR), were identified as the underlying cause of MUHH. We investigated two unrelated Chinese multigenerational families with MUHH. By sequencing U2HR in the two families, we identified two previously reported mutations, c.1A >T (p.Met1?) and c.104A>G (p*35Wext1263*). Both these mutations cosegregated with the disease phenotype in the two families.
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Affiliation(s)
- Z Zhong
- Department of Ophthalmology of Shanghai Tenth People's Hospital and Tongji Eye Institute, Tongji University School of Medicine, Shanghai, China.,Department of Regenerative Medicine and Stem Cell Research Center, Tongji University School of Medicine, Shanghai, China.,Department of Medical Genetics, Tongji University School of Medicine, Shanghai, China
| | - M Zhong
- Department of Ophthalmology of Pingxiang People's Hospital, Pingxiang, Jiangxi, China
| | - Y Lu
- Department of Ophthalmology of Shanghai Tenth People's Hospital and Tongji Eye Institute, Tongji University School of Medicine, Shanghai, China.,Department of Regenerative Medicine and Stem Cell Research Center, Tongji University School of Medicine, Shanghai, China.,Department of Medical Genetics, Tongji University School of Medicine, Shanghai, China
| | - L Lu
- Department of Ophthalmology of Shanghai Tenth People's Hospital and Tongji Eye Institute, Tongji University School of Medicine, Shanghai, China.,Department of Regenerative Medicine and Stem Cell Research Center, Tongji University School of Medicine, Shanghai, China
| | - J Wang
- Department of Ophthalmology of Shanghai Tenth People's Hospital and Tongji Eye Institute, Tongji University School of Medicine, Shanghai, China.,Department of Regenerative Medicine and Stem Cell Research Center, Tongji University School of Medicine, Shanghai, China
| | - D Xu
- Department of Ophthalmology of Shanghai Tenth People's Hospital and Tongji Eye Institute, Tongji University School of Medicine, Shanghai, China
| | - F Wang
- Department of Ophthalmology of Shanghai Tenth People's Hospital and Tongji Eye Institute, Tongji University School of Medicine, Shanghai, China
| | - G Xu
- Department of Ophthalmology of Shanghai Tenth People's Hospital and Tongji Eye Institute, Tongji University School of Medicine, Shanghai, China.,Department of Regenerative Medicine and Stem Cell Research Center, Tongji University School of Medicine, Shanghai, China
| | - J Chen
- Department of Ophthalmology of Shanghai Tenth People's Hospital and Tongji Eye Institute, Tongji University School of Medicine, Shanghai, China.,Department of Regenerative Medicine and Stem Cell Research Center, Tongji University School of Medicine, Shanghai, China.,Department of Medical Genetics, Tongji University School of Medicine, Shanghai, China
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60
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Wen X, Huang A, Hu J, Zhong Z, Liu Y, Li Z, Pan X, Liu Z. Neuroprotective effect of astaxanthin against glutamate-induced cytotoxicity in HT22 cells: Involvement of the Akt/GSK-3β pathway. Neuroscience 2015. [PMID: 26197224 DOI: 10.1016/j.neuroscience.2015.07.034] [Citation(s) in RCA: 64] [Impact Index Per Article: 7.1] [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] [Indexed: 01/14/2023]
Abstract
Oxidative stress (OS) mediated the pathogenesis of Alzheimer's disease (AD). Astaxanthin (ATX) has been reported to exert antioxidant activities as well as neuroprotective effects in vivo and in vitro. But it is still unknown whether the Akt/glycogen synthase kinase-3β (GSK-3β) signaling mediated the neuroprotective effect of ATX in HT22 cells. Flow cytometric analysis was used to evaluate reactive oxygen species (ROS) generation. Caspase and PARP activity was measured. The expressions of heme oxygenase-1 (HO-1), nuclear factor-E2-related factor 2 (Nrf2), Bcl-2, Bax, apoptosis-inducing factor (AIF), cytochrome-c (Cyto-c), p-Akt and p-GSK-3β were evaluated to elucidate the underlying mechanism. Our results showed that ATX significantly attenuated glutamate-induced cell viability loss and lactate dehydrogenase (LDH) release, decreased the expression of caspase-3/8/9 activity and cleaved PARP, and suppressed the intracellular accumulation of ROS in HT22 cells after exposure to glutamate. ATX also increased the mitochondrial expression of AIF, Cyto-c as well as Bax while decreased Bcl-2. Moreover, ATX also induced the HO-1 expression in a dose and time-dependent manner, increased the antioxidant-responsive element (ARE) activity and nuclear Nrf2 expression. Furthermore, treatment with ATX restored the p-Akt and p-GSK-3β (Ser9) as well as HO-1 expression reduced by glutamate. This protective effect was partially blocked by the inhibitors lithium chloride treatment in HT22, indicating the involvement of Akt/GSK-3β inactivation during the neuroprotective effect of ATX. Our results provide the first evidence that ATX can protect glutamate-induced cytotoxicity in HT22 via attenuating caspase activation and mitochondrial dysfunction and modulating the Akt/GSK-3β signaling, indicating ATX may be useful for the treatment of neurodegenerative disorders such as AD.
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Affiliation(s)
- X Wen
- Department of Neurology, Guangzhou First Municipal People's Hospital, Guangzhou Medical University, Guangzhou-Birmingham University Brain and Cognition Center, No. 1 Panfu Road, Guangzhou 510180, China
| | - A Huang
- State Key Laboratory of Oncology in Southern China, Sun Yat-Sen University Cancer Center, Guangzhou 510060, China
| | - J Hu
- Department of Neurology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China
| | - Z Zhong
- Department of Neurology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China
| | - Y Liu
- Department of Neurology, the Sixth Affiliated Hospital Sun Yat-sen University, Guangzhou 510440, China
| | - Z Li
- Department of Neurology, Guangzhou First Municipal People's Hospital, Guangzhou Medical University, Guangzhou-Birmingham University Brain and Cognition Center, No. 1 Panfu Road, Guangzhou 510180, China
| | - X Pan
- Department of Neurology, Guangzhou First Municipal People's Hospital, Guangzhou Medical University, Guangzhou-Birmingham University Brain and Cognition Center, No. 1 Panfu Road, Guangzhou 510180, China.
| | - Z Liu
- Department of Neurology, Sun Yat-Sen Memorial Hospital, Sun Yat-Sen University, Guangzhou 510120, China; Guangdong Provincial Key Laboratory of Malignant Tumor Epigenetics and Gene Regulation, China.
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61
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Zhong Z, Gu X, Iyengar P, Mao W, Guo X, Wang J. SU-D-207-04: GPU-Based 4D Cone-Beam CT Reconstruction Using Adaptive Meshing Method. Med Phys 2015. [DOI: 10.1118/1.4923905] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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62
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Zhong Z, Gu X, Iyengar P, Mao W, Guo X, Wang J. TH-CD-303-10: 4D Cone-Beam CT Reconstruction Using Multi-Organ Meshes for Sliding Motion Modeling. Med Phys 2015. [DOI: 10.1118/1.4926245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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63
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Zhou H, Jiang X, Li Q, Hu J, Zhong Z, Wang H, Wang H, Yang B, Hu H. A simple and effective prognostic staging system based on clinicopathologic features of intrahepatic cholangiocarcinoma. Am J Cancer Res 2015; 5:1831-1843. [PMID: 26175951 PMCID: PMC4497449] [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: 02/15/2015] [Accepted: 04/12/2015] [Indexed: 06/04/2023] Open
Abstract
UNLABELLED Incidence and mortality of intrahepatic cholangiocarcinoma (ICC) are increasing. However, its prognostic predictive system associated with outcome after surgery remains poorly defined. In this study, we conducted retrospective survival analyses in a primary cohort of 370 patients who underwent partial hepatectomy for ICC (2005 and 2009). We found that seven variables were significantly independent predictors for overall survival (OS): serum prealbumin (hazard ratio [HR]: 1.447; p = 0.015), carbohydrate antigen 19-9 (HR: 1.438; p = 0.009), carcinoembryonic antigen (HR: 1.732; p = 0.002), tumor number (HR: 1.781; p < 0.001), vascular invasion (HR: 1.784; p < 0.001), regional lymphatic metastasis (HR: 2.003; p < 0.001) and local extrahepatic metastasis (HR: 1.506; p = 0.008). Using these independent predictors, we created a simple clinicopathologic prognostic staging system for predicting survival of ICC patients after resection. The validity of the prognostic staging system was prospectively assessed in 115 patients who underwent partial hepatectomy between January 2010 and December 2010 at the same institution. The prognostic power was quantified using likelihood ratio test and Akaike information criteria. Compared with the 6(th) and 7(th) AJCC staging systems, the new staging system in the primary cohort had a higher predictive accuracy for OS in terms of homogeneity and discriminatory ability. In the validation cohort, the homogeneity and discrimination of the new staging system were also superior to the two other staging systems. CONCLUSIONS The new staging system based on clinicopathologic features may provide relatively higher accuracy in prognostic prediction for ICC patients after tumor resection.
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Affiliation(s)
- Huabang Zhou
- Department of Hepatobiliary Medicine I, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University Shanghai, China
| | - Xiaolan Jiang
- Department of Hepatobiliary Medicine I, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University Shanghai, China
| | - Qiaomei Li
- Department of Hepatobiliary Medicine I, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University Shanghai, China
| | - Jingyi Hu
- Department of Digestive Diseases, Huashan Hospital, Fudan University Shanghai, China
| | - Zhengrong Zhong
- Department of Laboratory, The First Affiliated Hospital, Bengbu Medical College Anhui, China
| | - Hao Wang
- Department of Hepatobiliary Medicine I, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University Shanghai, China
| | - Hui Wang
- Department of Hepatobiliary Medicine I, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University Shanghai, China
| | - Bing Yang
- Department of Hepatobiliary Medicine I, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University Shanghai, China
| | - Heping Hu
- Department of Hepatobiliary Medicine I, Eastern Hepatobiliary Surgery Hospital, Second Military Medical University Shanghai, China
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Abstract
The tongue is a muscular organ that is essential in vertebrates for important functions, such as food intake and communication. Little is known about regulation of myogenic progenitors during tongue development when compared with the limb or trunk region. In this study, we investigated the relationship between different myogenic subpopulations and the function of canonical Wnt signaling in regulating these subpopulations. We found that Myf5- and MyoD-expressing myogenic subpopulations exist during embryonic tongue myogenesis. In the Myf5-expressing myogenic progenitors, there is a cell-autonomous requirement for canonical Wnt signaling for cell migration and differentiation. In contrast, the MyoD-expressing subpopulation does not require canonical Wnt signaling during tongue myogenesis. Taken together, our results demonstrate that canonical Wnt signaling differentially regulates the Myf5- and MyoD-expressing subpopulations during tongue myogenesis.
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Affiliation(s)
- Z Zhong
- Department of Orthodontics, School of Stomatology, Peking University, Beijing, China Center for Craniofacial Molecular Biology, Ostrow School of Dentistry, University of Southern California, Los Angeles, CA, USA
| | - H Zhao
- Center for Craniofacial Molecular Biology, Ostrow School of Dentistry, University of Southern California, Los Angeles, CA, USA
| | - J Mayo
- Center for Craniofacial Molecular Biology, Ostrow School of Dentistry, University of Southern California, Los Angeles, CA, USA
| | - Y Chai
- Center for Craniofacial Molecular Biology, Ostrow School of Dentistry, University of Southern California, Los Angeles, CA, USA
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65
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Li X, Liu J, Fan J, Ma Y, Ding S, Zhong Z, Wang D. Combined effects of nitrogen addition and litter manipulation on nutrient resorption of Leymus chinensis in a semi-arid grassland of northern China. Plant Biol (Stuttg) 2015; 17:9-15. [PMID: 24666511 DOI: 10.1111/plb.12172] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/19/2013] [Accepted: 01/28/2014] [Indexed: 06/03/2023]
Abstract
Plant growth in semi-arid ecosystems is usually severely limited by soil nutrient availability. Alleviation of these resource stresses by fertiliser application and aboveground litter input may affect plant internal nutrient cycling in such regions. We conducted a 4-year field experiment to investigate the effects of nitrogen (N) addition (10 g N·m(-2) ·year(-1)) and plant litter manipulation on nutrient resorption of Leymus chinensis, the dominant native grass in a semi-arid grassland in northern China. Although N addition had no clear effects on N and phosphorus (P) resorption efficiencies in leaves and culms, N fertilisation generally decreased leaf N resorption proficiency by 54%, culm N resorption proficiency by 65%. Moreover, N fertilisation increased leaf P resorption proficiency by 13%, culm P resorption proficiency by 20%. Under ambient or enriched N conditions, litter addition reduced N and P resorption proficiencies in both leaves and culms. The response of P resorption proficiency to litter manipulation was more sensitive than N resorption proficiency: P resorption proficiency in leaves and culms decreased strongly with increasing litter amount under both ambient and enriched N conditions. In contrast, N resorption proficiency was not significantly affected by litter addition, except for leaf N resorption proficiency under ambient N conditions. Furthermore, although litter addition caused a general decrease of leaf and culm nutrient resorption efficiencies under both ambient and enriched N conditions, litter addition effects on nutrient resorption efficiency were much weaker than the effects of litter addition on nutrient resorption proficiency. Taken together, our results show that leaf and non-leaf organs of L. chinensis respond consistently to altered soil N availability. Our study confirms the strong effects of N addition on plant nutrient resorption processes and the potential role of aboveground litter, the most important natural fertiliser in terrestrial ecosystems, in influencing plant internal nutrient cycling.
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Affiliation(s)
- X Li
- Institute of Grassland Science, Key Laboratory of Vegetation Ecology, Northeast Normal University, Ministry of Education, Changchun, China
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66
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Kleibeuker JE, Zhong Z, Nishikawa H, Gabel J, Müller A, Pfaff F, Sing M, Held K, Claessen R, Koster G, Rijnders G. Electronic reconstruction at the isopolar LaTiO(3)/LaFeO(3) interface: an X-ray photoemission and density-functional theory study. Phys Rev Lett 2014; 113:237402. [PMID: 25526156 DOI: 10.1103/physrevlett.113.237402] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/14/2014] [Indexed: 06/04/2023]
Abstract
We report the formation of a nonmagnetic band insulator at the isopolar interface between the antiferromagnetic Mott-Hubbard insulator LaTiO_{3} and the antiferromagnetic charge transfer insulator LaFeO_{3}. By density-functional theory calculations, we find that the formation of this interface state is driven by the combination of O band alignment and crystal field splitting energy of the t_{2g} and e_{g} bands. As a result of these two driving forces, the Fe 3d bands rearrange and electrons are transferred from Ti to Fe. This picture is supported by x-ray photoelectron spectroscopy, which confirms the rearrangement of the Fe 3d bands and reveals an unprecedented charge transfer up to 1.2±0.2 e^{-}/interface unit cell in our LaTiO_{3}/LaFeO_{3} heterostructures.
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Affiliation(s)
- J E Kleibeuker
- Faculty of Science and Technology and MESA+Institute for Nanotechnology, University of Twente, 7500 AE Enschede, Netherlands and Physikalisches Institut, University of Würzburg, 97074 Würzburg, Germany
| | - Z Zhong
- Institute of Solid State Physics, Vienna University of Technology, A-1040 Vienna, Austria
| | - H Nishikawa
- Faculty of Biology-Oriented Science and Technology, Kinki University, Kinokawa 649-6493, Japan
| | - J Gabel
- Physikalisches Institut, University of Würzburg, 97074 Würzburg, Germany
| | - A Müller
- Physikalisches Institut, University of Würzburg, 97074 Würzburg, Germany
| | - F Pfaff
- Physikalisches Institut, University of Würzburg, 97074 Würzburg, Germany
| | - M Sing
- Physikalisches Institut, University of Würzburg, 97074 Würzburg, Germany
| | - K Held
- Institute of Solid State Physics, Vienna University of Technology, A-1040 Vienna, Austria
| | - R Claessen
- Physikalisches Institut, University of Würzburg, 97074 Würzburg, Germany
| | - G Koster
- Faculty of Science and Technology and MESA+Institute for Nanotechnology, University of Twente, 7500 AE Enschede, Netherlands
| | - G Rijnders
- Faculty of Science and Technology and MESA+Institute for Nanotechnology, University of Twente, 7500 AE Enschede, Netherlands
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67
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Vergote I, Oaknin A, Baurain JF, Ananda S, Wong S, Su X, Wu B, Zhong Z, Warner D, Casado A. A phase 1b, open-label study of trebananib in combination with paclitaxel and carboplatin in patients with ovarian cancer receiving interval or primary debulking surgery. Eur J Cancer 2014; 50:2408-16. [PMID: 25037684 DOI: 10.1016/j.ejca.2014.06.010] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/16/2014] [Revised: 06/10/2014] [Accepted: 06/13/2014] [Indexed: 01/29/2023]
Abstract
AIM To evaluate the tolerability, pharmacokinetics and tumour response of first-line trebananib plus paclitaxel and carboplatin followed by trebananib maintenance in high-risk or advanced ovarian cancer. METHODS In this open-label phase 1b study, patients received intravenous (IV) trebananib 15 mg/kg administered weekly (QW) plus paclitaxel 175 mg/m(2) once every 3 weeks (Q3W) and carboplatin 6 mg/mL · min Q3W followed by trebananib 15 mg/kg QW monotherapy for 18 months. End-points were dose-limiting toxicities (DLTs; primary); treatment-emergent adverse events (AEs), anti-trebananib antibodies, pharmacokinetics and tumour response (secondary). RESULTS Twenty seven patients (interval debulking surgery [IDS], n=13) were enrolled. No DLTs occurred. During the combination therapy phase, AEs (>50%) in patients with IDS were nausea, diarrhoea, fatigue, decreased appetite and thrombocytopenia. In patients with primary debulking surgery (PDS), they were nausea, diarrhoea, fatigue and localised oedema. Grade 4 AEs were neutropenia (IDS, PDS; all n=3) and thrombocytopenia (IDS, PDS; all n=1). No deaths occurred. Toxicity results pertaining to trebananib maintenance were immature. The treatment combination did not markedly affect the pharmacokinetics across agents. In patients with IDS (n=14 after one patient was reassigned from PDS to IDS), 12 patients had a partial response (PR), two patients had stable disease. In patients with PDS (n=4), three patients had a complete response, one patient had a PR. CONCLUSIONS In women with ovarian cancer receiving IDS or PDS, IV trebananib 15 mg/kg QW plus paclitaxel and carboplatin appears tolerable. Results suggest that the treatment combination followed by trebananib 15 mg/kg monotherapy is associated with antitumour activity.
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Affiliation(s)
- I Vergote
- University Hospitals-KU Leuven, Leuven Cancer Institute, Department of Obstetrics and Gynecology, Herestraat 49, B-3000 Leuven, Belgium.
| | - A Oaknin
- Vall d'Hebron University Hospital, Medical Oncology Department, and Vall d'Hebron Institute of Oncology (VHIO), Head, Neck, and Gynecological Tumors Group, P. Vall d'Hebron 119-129, Barcelona 08035, Spain.
| | - J-F Baurain
- Université Catholique de Louvain, Centre du Cancer, Service d'Oncologie Médicale des Cliniques Universitaires Saint-Luc, Avenue Hippocrate 10, Bruxelles 1200, Belgium.
| | - S Ananda
- Royal Women's Hospital, Oncology Unit, 20 Flemington Road, Parkville 3052, VIC, Australia.
| | - S Wong
- Western Hospital, Department of Medical Oncology, Oncology Research Level 2 South, Gordon Street, Footscray 3011, VIC, Australia.
| | - X Su
- Amgen Inc., Department of Biostatistics, One Amgen Center Drive, Thousand Oaks, CA 91320-1799, USA.
| | - B Wu
- Amgen Inc., Department of Pharmacokinetics and Drug Metabolism, One Amgen Center Drive, Thousand Oaks, CA 91320-1799, USA.
| | - Z Zhong
- Amgen Inc., Department of Clinical Immunology and Biological Sample Management, One Amgen Center Drive, Thousand Oaks, CA 91320-1799, USA.
| | - D Warner
- Amgen Inc., Department of Clinical Development, One Amgen Center Drive, Thousand Oaks, CA 91320-1799, USA.
| | - A Casado
- Hospital Universitario Clínico San Carlos, Servicio de Oncologia Medica, Calle del Professor Martín Lagos s/n, Madrid 28040, Spain.
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Cai Y, Zhong Z, Guo X, Gu X, Chiu T, Kearney V, Liu H, Jiang L, Chen S, Yordy J, Nedzi L, Mao W. TU-A-9A-01: A Precise Deformable Image Registration System Using Feature-Based Irregular Meshes. Med Phys 2014. [DOI: 10.1118/1.4889236] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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69
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Chen H, Zhen X, Zhong Z, Pompos A, Yan H, Zhou L, Jiang S, Gu X. SU-F-BRF-09: A Non-Rigid Point Matching Method for Accurate Bladder Dose Summation in Cervical Cancer HDR Brachytherapy. Med Phys 2014. [DOI: 10.1118/1.4889079] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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70
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Zhong Z, Cai Y, Guo X, Jia X, Chiu T, Kearney V, Liu H, Jiang L, Chen S, Yordy J, Nedzi L, Mao W. WE-D-9A-01: A Novel Mesh-Based Deformable Surface-Contour Registration. Med Phys 2014. [DOI: 10.1118/1.4889417] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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71
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Zhang J, Dou Y, Zhong Z, Su J, Xu D, Tang F, Zhang X, Zhao Y, Zeng X, Zhang F, You X. Clinical characteristics and therapy exploration of active human cytomegalovirus infection in 105 lupus patients. Lupus 2014; 23:889-97. [PMID: 24836584 DOI: 10.1177/0961203314532560] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/18/2013] [Accepted: 03/14/2014] [Indexed: 11/16/2022]
Abstract
Systemic lupus erythematosus (SLE) has protean clinical manifestations of varying severity over the course of its onset, exacerbation, remission and flare that could often pose significant challenges for clinicians in their decision making as to whether to treat aggressively or to look for concurrent conditions such as infection with opportunistic pathogens. Human cytomegalovirus (HCMV) is one of those pathogens and is frequently encountered in our daily management of lupus patients. To investigate the clinical characteristics and therapeutic options of active HCMV infection in patients with SLE, we retrospectively reviewed clinical data of 105 inpatients in our department of Rheumatology and Clinical Immunology of Peking Union Medical College Hospital (PUMCH) diagnosed with both SLE and active HCMV infection from January 2006 to January 2012. Three groups were designated that included 42 cases of HCMV triggering SLE, 31 cases of HCMV exacerbating SLE, and 32 cases of HCMV mimicking SLE flare based on the relationship of HCMV infection and SLE. 1) Hematocytopenia (81%), fever (73.3%) and liver dysfunction (54.3%) were the most common clinical manifestations. The differences among the three groups with regard to butterfly erythema, cutaneous vasculitis, arthritis, serositis, central nervous system involvement and renal involvement were statistically significant (p < 0.05). 2) Positive rate of HCMV-pp65, compared with HCMV-IgM and HCMV-DNA, was the highest (84.9%) in patients with SLE and active HCMV infection. 3) Following 14-21 days of inductive treatment with ganciclovir, a total of 26 out of 56 patients were still positive with HCMV-IgM (nine of 19, 47.6%) and pp65 (17/37, 45.9%). Among them, seven cases suffered HCMV relapses in three months with six cases of sustained HCMV-pp65 antigenemia. In conclusion, hematocytopenia, fever and liver dysfunction should remind us to consider HCMV infection. Butterfly erythema, cutaneous vasculitis, arthritis, serositis, central nervous system involvement and renal lesion were relatively characteristic symptoms of lupus activity. HCMV-pp65 is a sensitive indicator to guide antiviral therapy. Induction therapy using ganciclovir with a duration of 14∼21 days is not sufficient, and continued HCMV-pp65 positivity may require prolonged antiviral treatment in lupus patients.
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Affiliation(s)
- J Zhang
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China Department of Immunology and Rheumatology, LiHuili Hospital, Medical School of Ningbo University, Ningbo, China
| | - Y Dou
- Department of Clinical Lab, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Z Zhong
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China
| | - J Su
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China
| | - D Xu
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China
| | - F Tang
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China
| | - X Zhang
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China
| | - Y Zhao
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China
| | - X Zeng
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China
| | - F Zhang
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China
| | - X You
- Department of Rheumatology and Clinical Immunology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Key Laboratory of Rheumatology and Clinical Immunology, Ministry of Education, Beijing, China
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Zhu X, You Y, Li Q, Zeng C, Fu F, Guo A, Zhang H, Zou P, Zhong Z, Wang H, Wu Y, Li Q, Kong F, Chen Z. BCR-ABL1–positive microvesicles transform normal hematopoietic transplants through genomic instability: implications for donor cell leukemia. Leukemia 2014; 28:1666-75. [DOI: 10.1038/leu.2014.51] [Citation(s) in RCA: 48] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/20/2013] [Revised: 01/19/2014] [Accepted: 01/24/2014] [Indexed: 12/20/2022]
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Pestell RG, Tian L, Wang C, Soccio R, Hagen FK, Chen ER, Gormley M, Zhong Z, Ertel A, Addya S, Zhou J, Powell MJ, Xu P, Casimiro MC, Lisanti MP, Fortina P, Deng H, Sauve AA. Abstract P2-06-02: Pparg deacetylation by SIRT1 determines breast tumor lipid synthesis and growth. Cancer Res 2013. [DOI: 10.1158/0008-5472.sabcs13-p2-06-02] [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: 11/16/2022]
Abstract
Abstract
Peroxisome proliferator-activated receptorg (Pparγ) is a member of the nuclear receptor (NR) superfamily, which regulates diverse biological functions including lipogenesis and differentiation, anti-inflammation, insulin sensitivity, cellular proliferation, and autophagy. Independent lines of evidence support a role for Pparγ as either a collaborative oncogene or as a tumor suppressor. Heterozygous mutations of Pparγ have been detected in 4/55 patients with colon cancer and a chromosomal translocation between PAX8 and Pparγ in follicular thyroid cancer appeared to serve as a dominant inhibitor of endogenous Pparγ expression. Pparγ agonists reduced tumorigenesis in several in vivo models. In contrast, several studies suggest Pparγ may enhance tumor growth. Pparγ ligands increased polyp numbers in the Apc mouse model of familial adenomatosis. Pparγ and its ligands inhibit breast tumor growth; however, constitutively active Pparγ collaborated in mammary oncogenesis with polyoma middle T antigen or oncogenic ErbB2.
Pparγ activation involves post-translational modifications including phosphorylation and sumoylation upon growth factor or ligand stimulus. Mutation of the Pparγ1 sumoylation site at K77 and K365 demonstrated that K77 may either reduce Pparγ-dependent gene induction and enhance repression or reduce repression, depending upon the synthetic reporter gene used. Lysine residues of nuclear receptors also serve as substrates for acetylation and Pparγ binds co-activators and co-repressors with intrinsic or associated histone acetylase or deacetylase activity including NCoR, SMRT, SIRT1, and p300. Initially characterized for the ERα, AR and, subsequently, the orphan nuclear receptor steroidogenic factor 1 (SF-1), acetylation occurs at a conserved lysine motif shared amongst evolutionarily related nuclear receptors. Several nuclear receptors and co-integrators involved in lipid metabolism are regulated by acetylation including p300, PGC1α, FXR, LXR and RAR. Both TSA- and NAD-sensitive HDACs (e.g. SIRT1) regulate Pparγ function and SIRT1 inhibits Pparγ-dependent adipocyte differentiation. Whether Pparγ is acetylated in cancer cells and how Pparγ exerts it's crucial, though controversial, function in tumorigenesis have not been established.
Pparγ induces gene transcription through binding specific NR half-sites and through non-canonical binding sequences (such as CREB/AP-1 sites). Transcriptional repression involves Pparγ sumoylation at lysine 77 (K77). Herein, Pparγ was shown to be acetylated at nine distinct lysine residues. SIRT1 bound and deacetylated Pparγ at K154/155. ChIP-Seq analysis for genome-wide DNA binding demonstrated the acetylation site was required for binding NR half-sites, but was not required for non-canonical site binding. Breast tumor growth, de novo lipid synthesis, induction of autophagy and evasion of apoptosis was promoted by K154/155 and inhibited by K77 in vivo. Pparγ acetylation induced a gene signature that was increased in breast cancer, associated with a reduction in SIRT1 abundance and poor outcome. The Pparγ acetylation site determines binding to autophagy and apoptosis signaling to regulate breast tumor lipid metabolism and growth.
Citation Information: Cancer Res 2013;73(24 Suppl): Abstract nr P2-06-02.
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Affiliation(s)
- RG Pestell
- Thomas Jefferson University, Philadelphia, PA; University of Rochester, Rochester, NY; University of Pennsylvania, Philadelphia, PA; Weill Medical College of Cornell University, New York, NY; Rockefeller University, New York, NY
| | - L Tian
- Thomas Jefferson University, Philadelphia, PA; University of Rochester, Rochester, NY; University of Pennsylvania, Philadelphia, PA; Weill Medical College of Cornell University, New York, NY; Rockefeller University, New York, NY
| | - C Wang
- Thomas Jefferson University, Philadelphia, PA; University of Rochester, Rochester, NY; University of Pennsylvania, Philadelphia, PA; Weill Medical College of Cornell University, New York, NY; Rockefeller University, New York, NY
| | - R Soccio
- Thomas Jefferson University, Philadelphia, PA; University of Rochester, Rochester, NY; University of Pennsylvania, Philadelphia, PA; Weill Medical College of Cornell University, New York, NY; Rockefeller University, New York, NY
| | - FK Hagen
- Thomas Jefferson University, Philadelphia, PA; University of Rochester, Rochester, NY; University of Pennsylvania, Philadelphia, PA; Weill Medical College of Cornell University, New York, NY; Rockefeller University, New York, NY
| | - ER Chen
- Thomas Jefferson University, Philadelphia, PA; University of Rochester, Rochester, NY; University of Pennsylvania, Philadelphia, PA; Weill Medical College of Cornell University, New York, NY; Rockefeller University, New York, NY
| | - M Gormley
- Thomas Jefferson University, Philadelphia, PA; University of Rochester, Rochester, NY; University of Pennsylvania, Philadelphia, PA; Weill Medical College of Cornell University, New York, NY; Rockefeller University, New York, NY
| | - Z Zhong
- Thomas Jefferson University, Philadelphia, PA; University of Rochester, Rochester, NY; University of Pennsylvania, Philadelphia, PA; Weill Medical College of Cornell University, New York, NY; Rockefeller University, New York, NY
| | - A Ertel
- Thomas Jefferson University, Philadelphia, PA; University of Rochester, Rochester, NY; University of Pennsylvania, Philadelphia, PA; Weill Medical College of Cornell University, New York, NY; Rockefeller University, New York, NY
| | - S Addya
- Thomas Jefferson University, Philadelphia, PA; University of Rochester, Rochester, NY; University of Pennsylvania, Philadelphia, PA; Weill Medical College of Cornell University, New York, NY; Rockefeller University, New York, NY
| | - J Zhou
- Thomas Jefferson University, Philadelphia, PA; University of Rochester, Rochester, NY; University of Pennsylvania, Philadelphia, PA; Weill Medical College of Cornell University, New York, NY; Rockefeller University, New York, NY
| | - MJ Powell
- Thomas Jefferson University, Philadelphia, PA; University of Rochester, Rochester, NY; University of Pennsylvania, Philadelphia, PA; Weill Medical College of Cornell University, New York, NY; Rockefeller University, New York, NY
| | - P Xu
- Thomas Jefferson University, Philadelphia, PA; University of Rochester, Rochester, NY; University of Pennsylvania, Philadelphia, PA; Weill Medical College of Cornell University, New York, NY; Rockefeller University, New York, NY
| | - MC Casimiro
- Thomas Jefferson University, Philadelphia, PA; University of Rochester, Rochester, NY; University of Pennsylvania, Philadelphia, PA; Weill Medical College of Cornell University, New York, NY; Rockefeller University, New York, NY
| | - MP Lisanti
- Thomas Jefferson University, Philadelphia, PA; University of Rochester, Rochester, NY; University of Pennsylvania, Philadelphia, PA; Weill Medical College of Cornell University, New York, NY; Rockefeller University, New York, NY
| | - P Fortina
- Thomas Jefferson University, Philadelphia, PA; University of Rochester, Rochester, NY; University of Pennsylvania, Philadelphia, PA; Weill Medical College of Cornell University, New York, NY; Rockefeller University, New York, NY
| | - H Deng
- Thomas Jefferson University, Philadelphia, PA; University of Rochester, Rochester, NY; University of Pennsylvania, Philadelphia, PA; Weill Medical College of Cornell University, New York, NY; Rockefeller University, New York, NY
| | - AA Sauve
- Thomas Jefferson University, Philadelphia, PA; University of Rochester, Rochester, NY; University of Pennsylvania, Philadelphia, PA; Weill Medical College of Cornell University, New York, NY; Rockefeller University, New York, NY
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Zhong Z, Hennink W, Feijen J. Symposium on Innovative Polymers for Controlled Delivery: Conference Abstracts. J Control Release 2013. [DOI: 10.1016/j.jconrel.2013.10.018] [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: 11/29/2022]
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75
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Storm M, Eichman B, Zhong Z, Theobald W, Schiebel P, Mileham C, Stoeckl C, Begishev IA, Fiksel G, Stephens RB, Freeman RR, Akli KU. Note: Characterization of a high-photon-energy X-ray imager. Rev Sci Instrum 2013; 84:106103. [PMID: 24182176 DOI: 10.1063/1.4825139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
The Bragg angle, rocking curve, and reflection efficiency of a quartz crystal x-ray imager (Miller indices 234) were measured at photon energy of 15.6909 keV, corresponding to the K(α2) line of Zr, using the X15A beamline at the National Synchrotron Light Source at Brookhaven National Laboratory. One flat and three spherically curved samples were tested. The peak reflectivity of the best-performing crystal was determined to be (3.6 ± 0.7) × 10(-4) with a rocking-curve full width at half maximum of 0.09°. The Zr K(α2) emission was imaged from a hot Zr plasma generated by a 10-J multiterawatt laser.
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Affiliation(s)
- M Storm
- Department of Physics, The Ohio State University, 191 West Woodruff Road, Columbus, Ohio 43210, USA
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76
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Liu D, Li Z, Li W, Zhong Z, Xu J, Ren J, Ma Z. Adsorption Behavior of Heavy Metal Ions from Aqueous Solution by Soy Protein Hollow Microspheres. Ind Eng Chem Res 2013. [DOI: 10.1021/ie401092f] [Citation(s) in RCA: 106] [Impact Index Per Article: 9.6] [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)
- Dagang Liu
- Department of
Chemistry, Nanjing University of Information Science and Technology, Nanjing, 210044,
China
| | - Zehui Li
- Department of
Chemistry, Nanjing University of Information Science and Technology, Nanjing, 210044,
China
| | - Wei Li
- Department of
Chemistry, Nanjing University of Information Science and Technology, Nanjing, 210044,
China
| | - Zhengrong Zhong
- Department of
Chemistry, Nanjing University of Information Science and Technology, Nanjing, 210044,
China
| | - Jianqiang Xu
- Department of
Chemistry, Nanjing University of Information Science and Technology, Nanjing, 210044,
China
| | - Jinjing Ren
- Department of
Chemistry, Nanjing University of Information Science and Technology, Nanjing, 210044,
China
| | - Zhongshi Ma
- Department of
Chemistry, Nanjing University of Information Science and Technology, Nanjing, 210044,
China
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77
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Gu X, Pompos A, Zhong Z, Wang J, Guo X, Jia X, Dong B, Jiang S, Solberg T. SU-E-J-81: A Contour-Guided Deformable Image Registration Scheme for Organ Surface Deformation. Med Phys 2013. [DOI: 10.1118/1.4814293] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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78
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Zhong Z, Cai Y, Guo X, Kearney V, Jiang L, Wang J, Yordy J, Chen S, Nedzi L, Solberg T, Mao W. WE-C-WAB-09: A Novel Volumetric Imaging Method Using a Sparse Subset of CBCT Projections. Med Phys 2013. [DOI: 10.1118/1.4815545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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79
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Jiang L, Kearney V, Zhong Z, Yordy J, Chen S, Nedzi L, Solberg T, Mao W. SU-E-T-629: Initial Results of VMAT Re-Planning for On-Line Adaptive Radiotherapy. Med Phys 2013. [DOI: 10.1118/1.4815057] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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80
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Ablikim M, Achasov MN, Albayrak O, Ambrose DJ, An FF, An Q, Bai JZ, Ban Y, Becker J, Bennett JV, Bertani M, Bian JM, Boger E, Bondarenko O, Boyko I, Briere RA, Bytev V, Cai X, Cakir O, Calcaterra A, Cao GF, Cetin SA, Chang JF, Chelkov G, Chen G, Chen HS, Chen JC, Chen ML, Chen SJ, Chen X, Chen YB, Cheng HP, Chu YP, Cronin-Hennessy D, Dai HL, Dai JP, Dedovich D, Deng ZY, Denig A, Denysenko I, Destefanis M, Ding WM, Ding Y, Dong LY, Dong MY, Du SX, Fang J, Fang SS, Fava L, Feng CQ, Ferroli RB, Friedel P, Fu CD, Gao Y, Geng C, Goetzen K, Gong WX, Gradl W, Greco M, Gu MH, Gu YT, Guan YH, Guo AQ, Guo LB, Guo T, Guo YP, Han YL, Harris FA, He KL, He M, He ZY, Held T, Heng YK, Hou ZL, Hu C, Hu HM, Hu JF, Hu T, Huang GM, Huang GS, Huang JS, Huang L, Huang XT, Huang Y, Huang YP, Hussain T, Ji CS, Ji Q, Ji QP, Ji XB, Ji XL, Jiang LL, Jiang XS, Jiao JB, Jiao Z, Jin DP, Jin S, Jing FF, Kalantar-Nayestanaki N, Kavatsyuk M, Kopf B, Kornicer M, Kuehn W, Lai W, Lange JS, Leyhe M, Li CH, Li C, Li C, Li DM, Li F, Li G, Li HB, Li JC, Li K, Li L, Li QJ, Li SL, Li WD, Li WG, Li XL, Li XN, Li XQ, Li XR, Li ZB, Liang H, Liang YF, Liang YT, Liao GR, Liao XT, Lin D, Liu BJ, Liu CL, Liu CX, Liu FH, Liu F, Liu F, Liu H, Liu HB, Liu HH, Liu HM, Liu HW, Liu JP, Liu K, Liu KY, Liu K, Liu PL, Liu Q, Liu SB, Liu X, Liu YB, Liu ZA, Liu Z, Liu Z, Loehner H, Lu GR, Lu HJ, Lu JG, Lu QW, Lu XR, Lu YP, Luo CL, Luo MX, Luo T, Luo XL, Lv M, Ma CL, Ma FC, Ma HL, Ma QM, Ma S, Ma T, Ma XY, Maas FE, Maggiora M, Malik QA, Mao YJ, Mao ZP, Messchendorp JG, Min J, Min TJ, Mitchell RE, Mo XH, Morales Morales C, Muchnoi NY, Muramatsu H, Nefedov Y, Nicholson C, Nikolaev IB, Ning Z, Olsen SL, Ouyang Q, Pacetti S, Park JW, Pelizaeus M, Peng HP, Peters K, Ping JL, Ping RG, Poling R, Prencipe E, Qi M, Qian S, Qiao CF, Qin LQ, Qin XS, Qin Y, Qin ZH, Qiu JF, Rashid KH, Rong G, Ruan XD, Sarantsev A, Schaefer BD, Shao M, Shen CP, Shen XY, Sheng HY, Shepherd MR, Song XY, Spataro S, Spruck B, Sun DH, Sun GX, Sun JF, Sun SS, Sun YJ, Sun YZ, Sun ZJ, Sun ZT, Tang CJ, Tang X, Tapan I, Thorndike EH, Toth D, Ullrich M, Varner GS, Wang BQ, Wang D, Wang DY, Wang K, Wang LL, Wang LS, Wang M, Wang P, Wang PL, Wang QJ, Wang SG, Wang XF, Wang XL, Wang YF, Wang Z, Wang ZG, Wang ZY, Wei DH, Wei JB, Weidenkaff P, Wen QG, Wen SP, Werner M, Wiedner U, Wu LH, Wu N, Wu SX, Wu W, Wu Z, Xia LG, Xia YX, Xiao ZJ, Xie YG, Xiu QL, Xu GF, Xu GM, Xu QJ, Xu QN, Xu XP, Xu ZR, Xue F, Xue Z, Yan L, Yan WB, Yan YH, Yang HX, Yang Y, Yang YX, Ye H, Ye M, Ye MH, Yu BX, Yu CX, Yu HW, Yu JS, Yu SP, Yuan CZ, Yuan Y, Zafar AA, Zallo A, Zeng Y, Zhang BX, Zhang BY, Zhang C, Zhang CC, Zhang DH, Zhang HH, Zhang HY, Zhang JQ, Zhang JW, Zhang JY, Zhang JZ, Zhang L, Zhang R, Zhang SH, Zhang XJ, Zhang XY, Zhang Y, Zhang YH, Zhang ZP, Zhang ZY, Zhang Z, Zhao G, Zhao HS, Zhao JW, Zhao KX, Zhao L, Zhao L, Zhao MG, Zhao Q, Zhao QZ, Zhao SJ, Zhao TC, Zhao YB, Zhao ZG, Zhemchugov A, Zheng B, Zheng JP, Zheng YH, Zhong B, Zhong Z, Zhou L, Zhou XK, Zhou XR, Zhu C, Zhu K, Zhu KJ, Zhu SH, Zhu XL, Zhu YC, Zhu YM, Zhu YS, Zhu ZA, Zhuang J, Zou BS, Zou JH. Measurements of the branching fractions forJ/ψandψ′→ΛΛ¯π0andΛΛ¯η. Int J Clin Exp Med 2013. [DOI: 10.1103/physrevd.87.052007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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81
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Appel AA, Chou CY, Larson JC, Zhong Z, Schoen FJ, Johnston CM, Brey EM, Anastasio MA. An initial evaluation of analyser-based phase-contrast X-ray imaging of carotid plaque microstructure. Br J Radiol 2013; 86:20120318. [PMID: 23239697 DOI: 10.1259/bjr.20120318] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Carotid artery plaque instability can result in rupture and lead to ischaemic stroke. Stability of plaques appears to be a function of composition. Current non-invasive imaging techniques are limited in their ability to classify distinct histological regions within plaques. Phase-contrast (PC) X-ray imaging methods are an emerging class of techniques that have shown promise for identifying soft-tissue features without use of exogenous contrast agents. This is the first study to apply analyser-based X-ray PC imaging in CT mode to provide three-dimensional (3D) images of excised atherosclerotic plaques. The results provide proof of principle for this technique as a promising method for analysis of carotid plaque microstructure. Multiple image radiography CT (MIR-CT), a tomographic implementation of X-ray PC imaging that employs crystal optics, was employed to image excised carotid plaques. MIR-CT imaging yields three complementary images of the plaque's 3D X-ray absorption, refraction and scatter properties. These images were compared with histological sections of the tissue. X-ray PC images were able to identify the interface between the plaque and the medial wall. In addition, lipid-rich and highly vascularized regions were visible in the images as well as features depicting inflammation. This preliminary research shows MIR-CT imaging can reveal details about plaque structure not provided by traditional absorption-based X-ray imaging and appears to identify specific histological regions within plaques. This is the first study to apply analyser-based X-ray PC imaging to human carotid artery plaques to identify distinct soft-tissue regions.
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Affiliation(s)
- A A Appel
- Department of Biomedical Engineering, Illinois Institute of Technology, Chicago, IL, USA
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82
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David L, Bhandavat R, Kulkarni G, Pahwa S, Zhong Z, Singh G. Synthesis of graphene films by rapid heating and quenching at ambient pressures and their electrochemical characterization. ACS Appl Mater Interfaces 2013; 5:546-552. [PMID: 23268553 DOI: 10.1021/am301782h] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
We study the process of graphene growth on Cu and Ni substrates subjected to rapid heating (approximately 8 °C/s) and cooling cycles (approximately 10 °C/s) in a modified atmospheric pressure chemical vapor deposition furnace. Electron microscopy followed by Raman spectroscopy demonstrated successful synthesis of large-area few-layer graphene (FLG) films on both Cu and Ni substrates. The overall synthesis time was less than 30 min. Further, the as-synthesized films were directly utilized as anode material and their electrochemical behavior was studied in a lithium half-cell configuration. FLG on Cu (Cu-G) showed reduced lithium-intercalation capacity when compared with SLG, BLG and Bare-Cu suggesting its substrate protective nature (barrier to Li-ions). Although graphene films on Ni (Ni-G) showed better Li-cycling ability similar to that of other carbons suggesting that the presence of graphene edge planes (typical of Ni-G) is important in effective uptake and release of Li-ions in these materials.
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Affiliation(s)
- L David
- Mechanical and Nuclear Engineering Department, Kansas State University, Manhattan, Kansas 66506, United States
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83
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Ma YJ, Zhong Z, Yang XJ, Fan YL, Jiang ZM. Factors influencing epitaxial growth of three-dimensional Ge quantum dot crystals on pit-patterned Si substrate. Nanotechnology 2013; 24:015304. [PMID: 23220787 DOI: 10.1088/0957-4484/24/1/015304] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/01/2023]
Abstract
We investigated the molecular beam epitaxy growth of three-dimensional (3D) Ge quantum dot crystals (QDCs) on periodically pit-patterned Si substrates. A series of factors influencing the growth of QDCs were investigated in detail and the optimized growth conditions were found. The growth of the Si buffer layer and the first quantum dot (QD) layer play a key role in the growth of QDCs. The pit facet inclination angle decreased with increasing buffer layer thickness, and its optimized value was found to be around 21°, ensuring that all the QDs in the first layer nucleate within the pits. A large Ge deposition amount in the first QD layer favors strain build-up by QDs, size uniformity of QDs and hence periodicity of the strain distribution; a thin Si spacer layer favors strain correlation along the growth direction; both effects contribute to the vertical ordering of the QDCs. Results obtained by atomic force microscopy and cross-sectional transmission electron microscopy showed that 3D ordering was achieved in the Ge QDCs with the highest ever areal dot density of 1.2 × 10(10) cm(-2), and that the lateral and the vertical interdot spacing were ~10 and ~2.5 nm, respectively.
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Affiliation(s)
- Y J Ma
- State Key Laboratory of Surface Physics, and Department of Physics, Fudan University, Shanghai 200433, People's Republic of China
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84
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Zhong Z, Muckley M, Agcaoglu S, Grisham ME, Zhao H, Orth M, Lilburn MS, Akkus O, Karcher DM. The morphological, material-level, and ash properties of turkey femurs from 3 different genetic strains during production. Poult Sci 2012; 91:2736-46. [PMID: 23091126 DOI: 10.3382/ps.2012-02322] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
Femoral fractures are observed in selective-bred commercial turkeys; however, the etiology of such fractures is unknown. The current study investigated the whole bone morphological, material-level mechanical, and bone ash properties to determine the effect of selective breeding on bone strength. Femora from 3 divergent strains of turkeys, a commercial line, a different selectively bred heavy line (F-line), and a lighter age or weight matched random-bred line (RBC2/R-EQ, respectively), were compared. Bone geometric properties were measured with micro-CT and bone mechanical properties were measured using 3-point bending tests. Whole bone ash quantities were also recorded. Statistics were run using a general linear model multivariate ANOVA (GLM ANOVA). Results showed that at similar ages, the faster growing birds (commercial and F-line) had femurs twice the size of the RBC2 line as measured by cross-sectional area as early as 8 wk into the study. The femurs of the commercial and F-lines also exhibited as much as 20% greater mechanical strength than femurs from the RBC2 line at 16 and 20 wk of age as measured by properties such as elastic modulus and ultimate tensile strength. However, at similar BW, the slower growing R-EQ line had higher mechanical properties than the other lines, with the elastic modulus being 40% greater and the ultimate tensile strength being 37% greater at weights equivalent to those of the commercial and F-lines at 12 wk of age. Moreover, it was observed that the morphological properties (i.e., cross-sectional area, moments of inertia) are largely governed by BW, as there is little difference in the amount gained per week of age across the different lines. Conversely, the mechanical properties, as well as the related ash content, appear to be governed at least in part by time. Therefore, whereas modulation of bone geometry is the key responder for changes in BW, sufficient time for matrix mineralization or maturation or both to occur is also essential for mechanical competence of bone.
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Affiliation(s)
- Z Zhong
- Weldon School of Biomedical Engineering, Purdue University, West Lafayette, IN 47907, USA
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85
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Zhong Z, Gu X, Zhang Z, Wang D, Qing Y, Li M, Dai N. Recombinant human endostatin combined with definitive chemoradiotherapy as primary treatment for patients with unresectable but without systemic metastatic squamous cell carcinoma of the oesophagus. Br J Radiol 2012; 85:e1104-9. [PMID: 22898155 PMCID: PMC3500809 DOI: 10.1259/bjr/15321801] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2011] [Revised: 10/07/2011] [Accepted: 10/31/2011] [Indexed: 01/14/2023] Open
Abstract
OBJECTIVE The objective of this study was to review the outcomes of recombinant human endostatin combined with chemoradiotherapy (CRT) as primary treatment for patients with unresectable but without systemic metastatic squamous cell carcinoma (SCC) of the oesophagus. METHODS A total of 38 patients with unresectable but without systemic metastatic SCC of the oesophagus (T(4) or stage IVA) were retrospectively studied. 18 patients were treated with recombinant human endostatin combined with 5-fluorouracil (5-FU)/cisplatin (CDDP)-based CRT and 20 were treated with 5-FU/CDDP-based CRT alone. Short- and long-term effects including initial treatment response, survival and treatment-related complications were assessed with a median follow-up period of 36.1 months. RESULTS CRT combined with endostatin resulted in a marked improvement in complete response rates (44.4% vs 30% in the CRT-alone group), and an increase in the 1-year and 3-year overall survival rates (72% vs 50.0% and 32% vs 22.0%, respectively), while the median time to progression was extended to 11.3 months in the combination group vs 8.1 months in the CRT-alone group. There were no treatment-related toxicities that could be attributed specifically to the endostatin, and the toxicities observed across the two groups are probably due to the CRT itself. CONCLUSIONS The short- and long-term effects of CRT combined with endostatin were an improvement over that of CRT alone in this retrospective cohort study. This combined treatment modality may be a promising treatment modality for the patients with unresectable but without systemic metastatic oesophageal cancer. Further prospective randomised control studies are needed to confirm this finding.
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Affiliation(s)
- Z Zhong
- Department of Cancer Center, Research Institute of Surgery, Daping Hospital, Third Military Medical University, Chongqing, China.
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86
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Li Y, Jin G, Zhong Z. Thermodynamic Analysis-Based Improvement for the Boil-off Gas Reliquefaction Process of Liquefied Ethylene Vessels. Chem Eng Technol 2012. [DOI: 10.1002/ceat.201200019] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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87
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Vergote I, Benzaquen AO, Baurain J, Ananda S, Wong S, Yang X, Wu B, Zhong Z, Puhlmann M, Casado A. A Phase 1b Study of AMG 386 Plus Paclitaxel and Carboplatin in Ovarian Cancer Patients Undergoing Primary or Interval Debulking Surgery. Ann Oncol 2012. [DOI: 10.1016/s0923-7534(20)33578-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022] Open
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88
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Liu Q, Rehman H, Krishnasamy Y, Haque K, Schnellmann R, Lemasters J, Zhong Z. Amphiregulin stimulates liver regeneration after small-for-size mouse liver transplantation. Am J Transplant 2012; 12:2052-61. [PMID: 22694592 PMCID: PMC3409348 DOI: 10.1111/j.1600-6143.2012.04069.x] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/25/2023]
Abstract
This study investigated whether amphiregulin (AR), a ligand of the epidermal growth factor receptor (EGFR), improves liver regeneration after small-for-size liver transplantation. Livers of male C57BL/6 mice were reduced to ~50% and ~30% of original sizes and transplanted. After transplantation, AR and AR mRNA increased in 50% but not in 30% grafts. 5-Bromodeoxyuridine (BrdU) labeling, proliferating cell nuclear antigen (PCNA) expression and mitotic index increased substantially in 50% but not 30% grafts. Hyperbilirubinemia and hypoalbuminemia occurred and survival decreased after transplantation of 30% but not 50% grafts. AR neutralizing antibody blunted regeneration in 50% grafts whereas AR injection (5 μg/mouse, iv) stimulated liver regeneration, improved liver function and increased survival after transplantation of 30% grafts. Phosphorylation of EGFR and its downstream signaling molecules Akt, mTOR, p70S6K, ERK and JNK increased markedly in 50% but not 30% grafts. AR stimulated EGFR phosphorylation and its downstream signaling pathways. EGFR inhibitor PD153035 suppressed regeneration of 50% grafts and largely abrogated stimulation of regeneration of 30% grafts by AR. AR also increased cyclin D1 and cyclin E expression in 30% grafts. Together, liver regeneration is suppressed in small-for-size grafts, as least in part, due to decreased AR formation. AR supplementation could be a promising therapy to stimulate regeneration of partial liver grafts.
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Affiliation(s)
- Q. Liu
- Department of Pharmaceutical & Biomedical Sciences, Medical University of South Carolina, Charleston, SC 29425,Department of General Surgery, the Second Affiliated Hospital of Dalian Medical University, Dalian, China
| | - H. Rehman
- Department of Pharmaceutical & Biomedical Sciences, Medical University of South Carolina, Charleston, SC 29425
| | - Y. Krishnasamy
- Department of Pharmaceutical & Biomedical Sciences, Medical University of South Carolina, Charleston, SC 29425
| | - K. Haque
- Department of Pharmaceutical & Biomedical Sciences, Medical University of South Carolina, Charleston, SC 29425
| | - R.G. Schnellmann
- Department of Pharmaceutical & Biomedical Sciences, Medical University of South Carolina, Charleston, SC 29425,Ralph H. Johnson VA Medical Center, Charleston, SC 29403
| | - J.J. Lemasters
- Department of Pharmaceutical & Biomedical Sciences, Medical University of South Carolina, Charleston, SC 29425,Department of Biochemistry & Molecular Biology, Medical University of South Carolina, Charleston, SC 29425,Hollings Cancer Center, Medical University of South Carolina, Charleston, SC 29425
| | - Z. Zhong
- Department of Pharmaceutical & Biomedical Sciences, Medical University of South Carolina, Charleston, SC 29425,Hollings Cancer Center, Medical University of South Carolina, Charleston, SC 29425
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89
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Yang R, Zhao Y, Wang X, Sun J, Jin J, Wu D, Charnigo R, O'Brien A, Zhong Z, Rendo P. Evaluation of the safety and efficacy of recombinant factor IX (nonacog alfa) in minimally treated and previously treated Chinese patients with haemophilia B. Haemophilia 2012; 18:e374-8. [PMID: 22776196 DOI: 10.1111/j.1365-2516.2012.02907.x] [Citation(s) in RCA: 4] [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] [Accepted: 05/21/2012] [Indexed: 11/28/2022]
Affiliation(s)
- R. Yang
- Institute of Hematology and Blood Diseases Hospital; Chinese Academy of Medical Sciences and Peking Union Medical College; Tianjin; China
| | - Y. Zhao
- Peking Union Medical College Hospital; Beijing; China
| | - X. Wang
- Ruijin Hospital; Shanghai Jiao Tong University School of Medicine; Shanghai; China
| | - J. Sun
- Nanfang Hospital; Southern Medical University; Guangzhou; China
| | - J. Jin
- The First Affiliated Hospital of Medical School of Zhejiang University; Hangzhou; China
| | - D. Wu
- The First Affiliated Hospital of Soochow University; Suzhou; China
| | | | | | | | - P. Rendo
- Pfizer Inc; Collegeville; PA; USA
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90
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Li J, Wilson N, Zelazny A, Meyer J, Zhong Z, Muehleman C. Assessment of diffraction-enhanced synchrotron imaging for cartilage degeneration of the human knee joint. Clin Anat 2012; 26:621-9. [DOI: 10.1002/ca.22106] [Citation(s) in RCA: 7] [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] [Received: 11/03/2011] [Revised: 05/01/2012] [Accepted: 05/04/2012] [Indexed: 11/09/2022]
Affiliation(s)
- J. Li
- Department of Biochemistry; Rush University Medical Center; Chicago; Illinois
| | - N. Wilson
- Department of Biochemistry; Rush University Medical Center; Chicago; Illinois
| | - A. Zelazny
- Department of Radiology; Rush University Medical Center; Chicago; Illinois
| | - J. Meyer
- Department of Radiology; Rush University Medical Center; Chicago; Illinois
| | - Z. Zhong
- National Synchrotron Light Source; Brookhaven National Laboratory; Upton; New York
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91
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Abstract
PURPOSE To develop an efficient algorithm for generating high-quality digitally reconstructed radiographs (DRRs) for regularly and irregularly sampled volumes based on a splatting method with dynamic elliptical Gaussian kernels, and to evaluate this method using ray tracing. METHODS The traditional ray tracing method, which takes every intersected voxel into account, produces high quality DRRs but is very time consuming. Additionally, it is not suitable for handling irregularly-sampled volumes since it always requires image re-sampling, which leads to inaccuracy. We present a splatting approach to compute the 'footprint function', facilitating efficient perspective projection of elliptical Gaussian kernels at very low cost. This reported framework allows dealing with both regularly and irregularly sampled volumes effectively and efficiently. An XCAT digital phantom was used to generate 3D chest volumes at different respiratory phases, and CT projections are generated using ray tracing and the splatting method, respectively. Normalized cross correlation (NCC) is applied to evaluate the DRR similarity of two methods. RESULTS Respiratory Phases one and four are used as volume datasets from the 4D XCAT digital phantom as they represent the lung at end inhale and end exhale, respectively. The dataset of Phase one is the basic regularly-sampled volume while the dataset of Phase four is deformed from that of Phase one, and resampled to a regularly sampled dataset for the ray tracing method. NCC between splatting and ray tracing DRRs are 0.9980 and 0.9977 for Phase one and Phase four, respectively. The calculation speed of the splatting method is 3 times faster than that of ray tracing. CONCLUSIONS Our splatting approach can generate high-quality DRRs efficiently, and is a good alternative for current DRR generation techniques for deformed volume datasets. This research is supported by CPRIT Individual Investigator Award RP110329.
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Affiliation(s)
- Z Zhong
- The University of Texas at Dallas, Richardson, TX.,UT Southwestern Medical Center, Dallas, TX
| | - Y Cai
- The University of Texas at Dallas, Richardson, TX.,UT Southwestern Medical Center, Dallas, TX
| | - X Guo
- The University of Texas at Dallas, Richardson, TX.,UT Southwestern Medical Center, Dallas, TX
| | - T Solberg
- The University of Texas at Dallas, Richardson, TX.,UT Southwestern Medical Center, Dallas, TX
| | - W Mao
- The University of Texas at Dallas, Richardson, TX.,UT Southwestern Medical Center, Dallas, TX
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92
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Lin W, Li H, Liu W, Cao L, Tan H, Zhong Z. A randomised trial comparing the CEL-100 videolaryngoscope(TM) with the Macintosh laryngoscope blade for insertion of double-lumen tubes. Anaesthesia 2012; 67:771-6. [PMID: 22540996 DOI: 10.1111/j.1365-2044.2012.07137.x] [Citation(s) in RCA: 33] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
We performed a randomised trial comparing the CEL-100 videolaryngoscope(TM) with the Macintosh laryngoscope blade in 170 patients undergoing double-lumen tube placement for thoracic surgery. Compared with the Macintosh laryngoscope blade, use of the CEL-100 resulted in significantly more patients with a Cormack and Lehane Grade-1 laryngeal view (90.4% vs 61.0%, p < 0.001), a higher rate of successful intubation on the first attempt (92.8% vs 79.3%, p = 0.012), a lower median (IQR [range]) intubation difficulty score (0 (0-0 [0-60]) vs 15 (0-30 [0-80]), p < 0.001), a higher incidence of correct positioning of the tube (90.3% vs 79.2%, p = 0.041) and significantly fewer patients requiring external laryngeal pressure (19.3% vs 32.9%, p = 0.046). Median (IQR [range]) time to successful intubation was 45 (38-55 [22-132]) s with the CEL-100 compared with 51 (40-61 [30-160] s using the Macintosh laryngoscope blade. We conclude that the CEL-100 videolaryngoscope is superior to the Macintosh laryngoscope blade for double-lumen tube insertion.
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Affiliation(s)
- W Lin
- Department of Anesthesiology, Sun Yat-Sen University Cancer Centre , Guangzhou, China. linwq@ sysucc.org.cn
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93
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Jiang X, Ellis N, Shen DK, Jiang J, Dai W, Zhong Z. Thermogravimetry-FTIR Analysis of Pyrolysis of Pyrolytic Lignin Extracted from Bio-Oil. Chem Eng Technol 2012. [DOI: 10.1002/ceat.201000400] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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94
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Zhong Z, Han L, Shaoyan W, Kanghua M, Zhongjie S. Ageing-related changes in endothelin-1 receptor subtypes in rat heart and kidney. Heart 2011. [DOI: 10.1136/heartjnl-2011-300867.63] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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95
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Jing C, Han L, Qing L, Shu T, Kanghua M, Luosuuxin, Xiaogang Z, Wei H, Zhong Z, HangChongqing F. Optimisation of culture and cardiogenic differentiation of rat mesenchymal stem cells. Heart 2011. [DOI: 10.1136/heartjnl-2011-300867.652] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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96
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Zhong Z, Han L, Zhongjie S. Aging related glomerulosclerosis is associated with decreased in klotho expression and increased in superoxide production. Heart 2011. [DOI: 10.1136/heartjnl-2011-300867.55] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/04/2022]
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97
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Song X, Shen J, Wen H, Zhong Z, Luo Q, Chu D, Qi Y, Xu Y, Wei W. Impact of Schistosoma japonicum infection on collagen-induced arthritis in DBA/1 mice: a murine model of human rheumatoid arthritis. PLoS One 2011; 6:e23453. [PMID: 21858123 PMCID: PMC3152573 DOI: 10.1371/journal.pone.0023453] [Citation(s) in RCA: 55] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/23/2011] [Accepted: 07/18/2011] [Indexed: 12/26/2022] Open
Abstract
Background The hygiene hypothesis suggests that helminth infections prevent a range of autoimmune diseases. Methodology/Principal Findings To investigate the effects of S. japonicum infection on collagen-induced arthritis (CIA), male DBA/1 mice were challenged with unisexual or bisexual S. japonicum cercariae two weeks prior to bovine type II collagen (CII) immunization or at the onset of CIA. S. japonicum infection prior to CII immunization significantly reduced the severity of CIA. ELISA (enzyme linked immunosorbent assay) showed that the levels of anti-CII IgG and IgG2a were reduced in prior schistosome-infected mice, while anti-CII IgG1 was elevated. Splenocyte proliferation against both polyclonal and antigen-specific stimuli was reduced by prior schistosome infection as measured by tritiated thymidine incorporation (3H-TdR). Cytokine profiles and CD4+ T cells subpopulation analysis by ELISA and flow cytometry (FCM) demonstrated that prior schistosome infection resulted in a significant down-regulation of pro-inflammatory cytokines (IFN-γ, TNF-α, IL-1β and IL-6) and Th1 cells, together with up-regulation of the anti-inflammatory cytokine IL-10 and Th2 cells. Interestingly, the expansion of Treg cells and the reduction of Th17 cells were only observed in bisexually infected mice. In addition, prior schistosome infection notably reduced the expression of pro-inflammatory cytokines and receptor activator of NF-κB ligand (RANKL) in the inflamed joint. However, the disease was exacerbated at one week after infection when established CIA mice were challenged with bisexual cercariae. Conclusion/Significance Our data provide direct evidence that the Th2 response evoked by prior S. japonicum infection can suppress the Th1 response and pro-inflammatory mediator and that bisexual infection with egg-laying up-regulates the Treg response and down-regulates the Th17 response, resulting in an amelioration of autoimmune arthritis. The beneficial effects might depend on the establishment of a Th2-dominant response rather than the presence of the eggs. Our results suggest that anti-inflammatory molecules from the parasite could treat autoimmune diseases.
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MESH Headings
- Animals
- Antibodies, Anti-Idiotypic/immunology
- Arthritis, Experimental/immunology
- Arthritis, Experimental/metabolism
- Arthritis, Experimental/pathology
- Arthritis, Rheumatoid/immunology
- Cell Proliferation
- Cells, Cultured
- Collagen Type II/immunology
- Disease Models, Animal
- Female
- Humans
- Hygiene Hypothesis
- Immunization
- Interferon-gamma/immunology
- Interferon-gamma/metabolism
- Interleukin-4/immunology
- Interleukin-4/metabolism
- Mice
- Mice, Inbred DBA
- Schistosoma japonicum/immunology
- Schistosoma japonicum/parasitology
- Schistosomiasis japonica/immunology
- Severity of Illness Index
- T-Lymphocytes/immunology
- T-Lymphocytes/metabolism
- T-Lymphocytes, Regulatory/immunology
- T-Lymphocytes, Regulatory/metabolism
- Th2 Cells/immunology
- Th2 Cells/metabolism
- Therapy with Helminths
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Affiliation(s)
- Xiaorong Song
- Institute of Clinical Pharmacology, Anhui Medical University, Hefei, Anhui, China
- The Key Laboratory of Microbiology and Parasitology, and The Key Laboratory of Zoonoses, Anhui Medical University, Hefei, Anhui, China
- Institute of Anhui Cardiovascular Research, Anhui Provincial Hospital, Hefei, Anhui, China
| | - Jilong Shen
- Institute of Clinical Pharmacology, Anhui Medical University, Hefei, Anhui, China
- The Key Laboratory of Microbiology and Parasitology, and The Key Laboratory of Zoonoses, Anhui Medical University, Hefei, Anhui, China
- * E-mail:
| | - Huiqin Wen
- The Key Laboratory of Microbiology and Parasitology, and The Key Laboratory of Zoonoses, Anhui Medical University, Hefei, Anhui, China
| | - Zhengrong Zhong
- The Key Laboratory of Microbiology and Parasitology, and The Key Laboratory of Zoonoses, Anhui Medical University, Hefei, Anhui, China
| | - Qinli Luo
- The Key Laboratory of Microbiology and Parasitology, and The Key Laboratory of Zoonoses, Anhui Medical University, Hefei, Anhui, China
| | - Deyong Chu
- The Key Laboratory of Microbiology and Parasitology, and The Key Laboratory of Zoonoses, Anhui Medical University, Hefei, Anhui, China
| | - Yao Qi
- The Key Laboratory of Microbiology and Parasitology, and The Key Laboratory of Zoonoses, Anhui Medical University, Hefei, Anhui, China
| | - Yuanhong Xu
- The Key Laboratory of Microbiology and Parasitology, and The Key Laboratory of Zoonoses, Anhui Medical University, Hefei, Anhui, China
| | - Wei Wei
- Institute of Clinical Pharmacology, Anhui Medical University, Hefei, Anhui, China
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98
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Connor D, Cole E, Zhong Z, Dilmanian F, Wiebe S, Parham C, Pisano E. SU-C-220-06: Comparison of the Absorption Coefficient and Diffraction Enhanced Imagingˈˈs Apparent Absorption Coefficient of Lung Tissue. Med Phys 2011. [DOI: 10.1118/1.3611512] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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99
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Jiang X, Zhong Z, Ellis N, Wang Q. Aging and Thermal Stability of the Mixed Product of the Ether-Soluble Fraction of Bio-Oil and Bio-Diesel. Chem Eng Technol 2011. [DOI: 10.1002/ceat.201000441] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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100
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Cui J, Lv Y, Yang XJ, Fan YL, Zhong Z, Jiang ZM. Influencing factors on the size uniformity of self-assembled SiGe quantum rings grown by molecular beam epitaxy. Nanotechnology 2011; 22:125601. [PMID: 21317488 DOI: 10.1088/0957-4484/22/12/125601] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The size uniformity of self-assembled SiGe quantum rings, which are formed by capping SiGe quantum dots with a thin Si layer, is found to be greatly influenced by the growth temperature and the areal density of SiGe quantum dots. Higher growth temperature benefits the size uniformity of quantum dots, but results in low Ge concentration as well as asymmetric Ge distribution in the dots, which induces the subsequently formed quantum rings to be asymmetric in shape or even broken somewhere in the ridge of rings. Low growth temperature degrades the size uniformity of quantum dots, and thus that of quantum rings. A high areal density results in the expansion and coalescence of neighboring quantum dots to form a chain, rather than quantum rings. Uniform quantum rings with a size dispersion of 4.6% and an areal density of 7.8×10(8) cm(-2) are obtained at the optimized growth temperature of 640°C.
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Affiliation(s)
- J Cui
- State Key Laboratory of Surface Physics, Fudan University, Shanghai, People's Republic of China
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