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Pei D, Zeng L, Huang X, Wang B, Liu L, Zhang G. Efficacy and safety of combined microneedling therapy for androgenic alopecia: A systematic review and meta-analysis of randomized clinical trials. J Cosmet Dermatol 2024; 23:1560-1572. [PMID: 38239003 DOI: 10.1111/jocd.16186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2023] [Revised: 12/14/2023] [Accepted: 01/05/2024] [Indexed: 04/25/2024]
Abstract
OBJECTIVE To provide dermatologists with more clinical experience in treating androgenetic alopecia, we evaluated the effect and safety of combined microneedling therapy for androgenetic alopecia. METHODS Studies on combined microneedling for hair loss were comprehensively searched by us in PubMed, Excerpta Medica Database, and the Cochrane Library Database. The literature search spanned the period from 2012 to 2022. Inclusion and exclusion criteria were developed, and the literature was screened according to this criteria. The Cochrane Risk of Bias Tool was used to assess the quality of the studies. The researcher applied Revman 5.3 and Stata 15.1 software to analyze the data after extracting information from the data. RESULTS Finally, 13 RCTs involving 696 AGA patients were included to compare the clinical effectiveness and adverse events of combined MN therapy with single MN therapy or single drug therapy for AGA. The results of meta-analysis showed as follows: (1) Hair density and diameter changes: The combined MN group was significantly better than any single treatment group, and the differences were statistically significant (MD = 13.36, 95% CI = [8.55, 18.16], Z = 5.45, p < 0.00001; MD = 18.11, 95% CI = [13.70, 22.52], Z = 8.04, p < 0.00001; MD = 13.36, 95% CI = [8.55, 18.16], Z = 5.45, p < 0.00001; MD = 2.50, 95% CI = [0.99, 4.02], Z = 3.23, p = 0.001); (2) the evaluation of satisfaction for efficacy: The doctor satisfaction rating of the combined MN group was significantly higher than that of any single treatment group, with statistical difference (RR = 2.03, 95% CI = [1.62, 2.53], Z = 6.24, p < 0.00001). The difference between the two groups regarding patients satisfaction was not significant (RR = 3.44, 95% CI = [0.67, 17.59], Z = 1.49, p = 0.14). (3) Safety: There was no statistical difference in the incidence of adverse reactions between combination therapy and monotherapy (RR = 0.83, 95% CI = [0.62, 1.12], Z = 1.22, p = 0.22). CONCLUSION The combined MN group showed statistically significant improvement in hair density and diameter, and good safety compared with monotherapy.
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Affiliation(s)
- Danning Pei
- Department of Dermatology, The First Hospital of Hebei Medical University, Shijiazhuang, China
- Candidate Branch of National Clinical Research Center for Skin Diseases, Shijiazhuang, China
| | - Linxi Zeng
- Department of Dermatology, The First Hospital of Hebei Medical University, Shijiazhuang, China
- Candidate Branch of National Clinical Research Center for Skin Diseases, Shijiazhuang, China
| | - Xin Huang
- Department of Dermatology, The First Hospital of Hebei Medical University, Shijiazhuang, China
- Candidate Branch of National Clinical Research Center for Skin Diseases, Shijiazhuang, China
| | - Bin Wang
- Department of Dermatology, The First Hospital of Hebei Medical University, Shijiazhuang, China
- Candidate Branch of National Clinical Research Center for Skin Diseases, Shijiazhuang, China
| | - Lu Liu
- Department of Dermatology, The First Hospital of Hebei Medical University, Shijiazhuang, China
- Candidate Branch of National Clinical Research Center for Skin Diseases, Shijiazhuang, China
| | - Guoqiang Zhang
- Department of Dermatology, The First Hospital of Hebei Medical University, Shijiazhuang, China
- Candidate Branch of National Clinical Research Center for Skin Diseases, Shijiazhuang, China
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2
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Pei D, Chen L, Yao Y, Zeng L, Zhang G. Microneedling combined with compound betamethasone in treatment of severe alopecia areata: A case report. Front Immunol 2022; 13:939077. [PMID: 35990624 PMCID: PMC9381928 DOI: 10.3389/fimmu.2022.939077] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/08/2022] [Accepted: 07/11/2022] [Indexed: 12/05/2022] Open
Abstract
Alopecia areata (AA) is a common inflammatory, non-cicatricial hair loss. At present, it is considered that its pathogenesis is an autoimmune disease specific to hair follicle organs mediated by T cells under the combined action of genetic and environmental factors. Treatment is challenging for children with severe AA who are resistant or intolerant to conventional treatment.Here, we treated a 3-year-old child with severe AA with microneedling combined with compound betamethasone. After 6 months of treatment, the patient’s condition was significantly improved, and most of the primary hair loss areas had hair regeneration.
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Affiliation(s)
- Danning Pei
- Department of Dermatology, The First Hospital of Hebei Medical University, Shijiazhuang, China
- Candidate Branch of National Clinical Research Center for Skin Diseases, Shijiazhuang, China
| | - Lirong Chen
- Department of Dermatology, The First Hospital of Hebei Medical University, Shijiazhuang, China
- Candidate Branch of National Clinical Research Center for Skin Diseases, Shijiazhuang, China
| | - Yue Yao
- Department of Dermatology, The First Hospital of Hebei Medical University, Shijiazhuang, China
- Candidate Branch of National Clinical Research Center for Skin Diseases, Shijiazhuang, China
| | - Linxi Zeng
- Department of Dermatology, The First Hospital of Hebei Medical University, Shijiazhuang, China
- Candidate Branch of National Clinical Research Center for Skin Diseases, Shijiazhuang, China
| | - Guoqiang Zhang
- Department of Dermatology, The First Hospital of Hebei Medical University, Shijiazhuang, China
- Candidate Branch of National Clinical Research Center for Skin Diseases, Shijiazhuang, China
- *Correspondence: Guoqiang Zhang,
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3
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Kang L, Du X, Zhou JS, Gu X, Chen YJ, Xu RZ, Zhang QQ, Sun SC, Yin ZX, Li YW, Pei D, Zhang J, Gu RK, Wang ZG, Liu ZK, Xiong R, Shi J, Zhang Y, Chen YL, Yang LX. Band-selective Holstein polaron in Luttinger liquid material A 0.3MoO 3 (A = K, Rb). Nat Commun 2021; 12:6183. [PMID: 34702828 PMCID: PMC8548323 DOI: 10.1038/s41467-021-26078-1] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Accepted: 09/14/2021] [Indexed: 11/09/2022] Open
Abstract
(Quasi-)one-dimensional systems exhibit various fascinating properties such as Luttinger liquid behavior, Peierls transition, novel topological phases, and the accommodation of unique quasiparticles (e.g., spinon, holon, and soliton, etc.). Here we study molybdenum blue bronze A0.3MoO3 (A = K, Rb), a canonical quasi-one-dimensional charge-density-wave material, using laser-based angle-resolved photoemission spectroscopy. Our experiment suggests that the normal phase of A0.3MoO3 is a prototypical Luttinger liquid, from which the charge-density-wave emerges with decreasing temperature. Prominently, we observe strong renormalizations of band dispersions, which are recognized as the spectral function of Holstein polaron derived from band-selective electron-phonon coupling in the system. We argue that the strong electron-phonon coupling plays an important role in electronic properties and the charge-density-wave transition in blue bronzes. Our results not only reconcile the long-standing heavy debates on the electronic properties of blue bronzes but also provide a rare platform to study interesting excitations in Luttinger liquid materials.
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Affiliation(s)
- L Kang
- State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing, 100084, China
| | - X Du
- State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing, 100084, China
| | - J S Zhou
- State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing, 100084, China
| | - X Gu
- State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing, 100084, China
| | - Y J Chen
- State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing, 100084, China
| | - R Z Xu
- State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing, 100084, China
| | - Q Q Zhang
- State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing, 100084, China
| | - S C Sun
- State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing, 100084, China
| | - Z X Yin
- State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing, 100084, China
| | - Y W Li
- School of Physical Science and Technology, ShanghaiTech University and CAS-Shanghai Science Research Center, Shanghai, 201210, China.,ShanghaiTech Laboratory for Topological Physics, Shanghai, 200031, China
| | - D Pei
- Department of Physics, Clarendon Laboratory, University of Oxford, Oxford, OX1 3PU, UK
| | - J Zhang
- School of Physical Science and Technology, ShanghaiTech University and CAS-Shanghai Science Research Center, Shanghai, 201210, China
| | - R K Gu
- Department of Physics, Clarendon Laboratory, University of Oxford, Oxford, OX1 3PU, UK
| | - Z G Wang
- International Center for Quantum Materials, School of Physics, Peking University, Beijing, 100871, China
| | - Z K Liu
- School of Physical Science and Technology, ShanghaiTech University and CAS-Shanghai Science Research Center, Shanghai, 201210, China.,ShanghaiTech Laboratory for Topological Physics, Shanghai, 200031, China
| | - R Xiong
- Department of Physics, Wuhan University, Wuhan, 430072, China
| | - J Shi
- Department of Physics, Wuhan University, Wuhan, 430072, China
| | - Y Zhang
- International Center for Quantum Materials, School of Physics, Peking University, Beijing, 100871, China
| | - Y L Chen
- State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing, 100084, China. .,School of Physical Science and Technology, ShanghaiTech University and CAS-Shanghai Science Research Center, Shanghai, 201210, China. .,ShanghaiTech Laboratory for Topological Physics, Shanghai, 200031, China. .,Department of Physics, Clarendon Laboratory, University of Oxford, Oxford, OX1 3PU, UK.
| | - L X Yang
- State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing, 100084, China. .,Frontier Science Center for Quantum Information, Beijing, 100084, China.
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4
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Hsu CH, Chen YL, Hsieh CH, Liang YJ, Liu SH, Pei D. Hemogram-based decision tree for predicting the metabolic syndrome and cardiovascular diseases in the elderly. QJM 2021; 114:363-373. [PMID: 32573729 DOI: 10.1093/qjmed/hcaa205] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2020] [Revised: 05/17/2020] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND This study aimed to build a hemogram-based decision tree to evaluate the association between current probability of metabolic syndrome (MetS) and prediction of future hypertension, type 2 diabetes and cardiovascular diseases (CVD) risk. METHODS A total of 40 395 elder participants (≥60 years) were enrolled in a standard health examination program in Taiwan from January 1999 to December 2014. A decision tree classification of the presence or absence of MetS at baseline, using age, sex and hemogram (white blood cell, hemoglobin and platelet) as independent variables, was conducted for the randomly assigned training (70%) and validation (30%) groups. Participants without MetS at baseline (n = 25 643) were followed up to observe whether they developed MetS, hypertension, type 2 diabetes or CVD in the future. RESULTS Modest accuracy of the decision tree in the training and validation groups with area under the curves of 0.653 and 0.652, respectively, indicated an acceptable generalizability of results. The predicted probability of baseline MetS was obtained from decision tree analysis. Participants without MetS at baseline were categorized into three equally sized groups according to the predicted probability. Participants in the third tertile had significantly higher risks of future MetS (hazard ratio 1.40, 95% confidence interval 1.25-1.58); type 2 diabetes (1.46, 1.17-1.83); hypertension (1.14, 1.01-1.28); and CVD (1.21, 1.01-1.44), compared with those in the first tertile. CONCLUSIONS Execution of hemogram-based decision tree analysis can assist in early identification and prompt management of elderly patients at a high risk of future hypertension, type 2 diabetes and CVD.
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Affiliation(s)
- C-H Hsu
- From the Department of Family Medicine
- Department of Geriatric Medicine, Center for Geriatrics and Gerontology, Shin Kong Wu Ho-Su Memorial Hospital, No. 95, Wenchang Rd., Shilin Dist., Taipei City 111, Taiwan
- Department of Family Medicine, Cardinal Tien Hospital, No.362, Zhongzheng Rd., Xindian Dist., New Taipei City 231, Taiwan
- School of Medicine, College of Medicine, Fu Jen Catholic University, 510 Zhongzheng Rd., Xinzhuang Dist., New Taipei City 242, Taiwan
| | - Y-L Chen
- School of Medicine, College of Medicine, Fu Jen Catholic University, 510 Zhongzheng Rd., Xinzhuang Dist., New Taipei City 242, Taiwan
- Department of Pathology, Cardinal Tien Hospital, No.362, Zhongzheng Rd., Xindian Dist., New Taipei City 231, Taiwan
| | - C-H Hsieh
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, No. 325, Sec. 2, Chenggong Rd., Neihu Dist., Taipei City 114, Taiwan
| | - Y-J Liang
- Department of Life Science, Graduate Institute of Applied Science and Engineering, College of Science and Engineering, Fu Jen Catholic University, 510 Zhongzheng Rd., Xinzhuang Dist., New Taipei City 242, Taiwan
| | - S-H Liu
- School of Nursing, College of Nursing, National Taipei University of Nursing and Health Science, No. 365, Mingde Rd., Beitou Dist., Taipei City 112, Taiwan
| | - D Pei
- School of Medicine, College of Medicine, Fu Jen Catholic University, 510 Zhongzheng Rd., Xinzhuang Dist., New Taipei City 242, Taiwan
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Fu Jen Catholic University Hospital, No. 69, Guizi Rd., Taishan Dist., New Taipei City 243, Taiwan
- Department of Internal Medicine, Cardinal Tien Hospital, No.362, Zhongzheng Rd., Xindian Dist., New Taipei City 231, Taiwan
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5
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Pei D, Zhang Q, Zhu X, Han S. Endophytic Bacillus subtilis P10 from Prunus cerasifera as a biocontrol agent against tomato Verticillium wilt. BRAZ J BIOL 2021; 83:e244261. [PMID: 34287505 DOI: 10.1590/1519-6984.244261] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/05/2020] [Accepted: 01/25/2021] [Indexed: 11/21/2022] Open
Abstract
Endophytic bacteria serve key roles in the maintenance of plant health and growth. Few studies to date, however, have explored the antagonistic and plant growth-promoting (PGP) properties of Prunus cerasifera endophytes. To that end, we isolated endophytic bacteria from P. cerasifera tissue samples and used a dual culture plate assay to screen these microbes for antagonistic activity against Verticillium dahliae, Botryosphaeria dothidea, Fusarium oxysporum, F. graminearum, and F. moniliforme. Of the 36 strains of isolated bacteria, four (strains P1, P10, P16, and P20) exhibited antagonistic effects against all five model pathogens, and the P10 strain exhibited the strongest antagonistic to five pathogens. This P10 strain was then characterized in-depth via phenotypic assessments, physiological analyses, and 16s rDNA sequencing, revealing it to be a strain of Bacillus subtilis. Application of a P10 cell suspension (1×108 CFU/mL) significantly enhanced the seed germination and seedling growth of tomato in a greenhouse setting. This P10 strain further significantly suppressed tomato Verticillium wilt with much lower disease incidence and disease index scores being observed following P10 treatment relative to untreated plants in pot-based experiments. Tomato plants that had been treated with strain P10 also enhanced defense-related enzymes, peroxidase, superoxide dismutase, and catalase activity upon V. dahliae challenge relative to plants that had not been treated with this endophytic bacterium. The results revealed that the P10 bacterial strain has potential value as a biocontrol agent for use in the prevention of tomato Verticillium wilt.
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Affiliation(s)
- D Pei
- Shangqiu Normal University, Henan Provincial Engineering Research Center for Development and Appllication of Characteristic Microorganism Resources, College of Biology and Food, Key Laboratory of Plant-Microbe Interactions, Shangqiu, China
| | - Q Zhang
- Shangqiu Normal University, Henan Provincial Engineering Research Center for Development and Appllication of Characteristic Microorganism Resources, College of Biology and Food, Key Laboratory of Plant-Microbe Interactions, Shangqiu, China
| | - X Zhu
- Shangqiu Normal University, Henan Provincial Engineering Research Center for Development and Appllication of Characteristic Microorganism Resources, College of Biology and Food, Key Laboratory of Plant-Microbe Interactions, Shangqiu, China
| | - S Han
- Shangqiu Normal University, Henan Provincial Engineering Research Center for Development and Appllication of Characteristic Microorganism Resources, College of Biology and Food, Key Laboratory of Plant-Microbe Interactions, Shangqiu, China
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6
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Li YW, Zheng HJ, Fang YQ, Zhang DQ, Chen YJ, Chen C, Liang AJ, Shi WJ, Pei D, Xu LX, Liu S, Pan J, Lu DH, Hashimoto M, Barinov A, Jung SW, Cacho C, Wang MX, He Y, Fu L, Zhang HJ, Huang FQ, Yang LX, Liu ZK, Chen YL. Observation of topological superconductivity in a stoichiometric transition metal dichalcogenide 2M-WS 2. Nat Commun 2021; 12:2874. [PMID: 34001892 PMCID: PMC8129086 DOI: 10.1038/s41467-021-23076-1] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Accepted: 04/11/2021] [Indexed: 02/03/2023] Open
Abstract
Topological superconductors (TSCs) are unconventional superconductors with bulk superconducting gap and in-gap Majorana states on the boundary that may be used as topological qubits for quantum computation. Despite their importance in both fundamental research and applications, natural TSCs are very rare. Here, combining state of the art synchrotron and laser-based angle-resolved photoemission spectroscopy, we investigated a stoichiometric transition metal dichalcogenide (TMD), 2M-WS2 with a superconducting transition temperature of 8.8 K (the highest among all TMDs in the natural form up to date) and observed distinctive topological surface states (TSSs). Furthermore, in the superconducting state, we found that the TSSs acquired a nodeless superconducting gap with similar magnitude as that of the bulk states. These discoveries not only evidence 2M-WS2 as an intrinsic TSC without the need of sensitive composition tuning or sophisticated heterostructures fabrication, but also provide an ideal platform for device applications thanks to its van der Waals layered structure.
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Affiliation(s)
- Y. W. Li
- grid.440637.20000 0004 4657 8879School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210 People’s Republic of China ,grid.4991.50000 0004 1936 8948Department of Physics, University of Oxford, Oxford, OX1 3PU UK ,ShanghaiTech Laboratory for Topological Physics, Shanghai, 201210 People’s Republic of China
| | - H. J. Zheng
- grid.440637.20000 0004 4657 8879School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210 People’s Republic of China ,ShanghaiTech Laboratory for Topological Physics, Shanghai, 201210 People’s Republic of China ,grid.410726.60000 0004 1797 8419University of Chinese Academy of Sciences, Beijing, 100049 People’s Republic of China
| | - Y. Q. Fang
- grid.454856.e0000 0001 1957 6294State Key Laboratory of High Performance Ceramics and Superfine Microstructure Shanghai Institute of Ceramics Chinese Academy of Science, Shanghai, 200050 People’s Republic of China ,grid.11135.370000 0001 2256 9319State Key Laboratory of Rare Earth Materials Chemistry and Applications College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871 People’s Republic of China
| | - D. Q. Zhang
- grid.411485.d0000 0004 1755 1108School of Physics, China Jiliang University, Hangzhou, 310018 People’s Republic of China ,grid.41156.370000 0001 2314 964XNational Laboratory of Solid State Microstructures and School of Physics Nanjing University, Nanjing, 210093 People’s Republic of China ,grid.509497.6Collaborative Innovation Center of Advanced Microstructures, Nanjing, 210093 People’s Republic of China
| | - Y. J. Chen
- grid.12527.330000 0001 0662 3178State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing, 100084 People’s Republic of China
| | - C. Chen
- grid.440637.20000 0004 4657 8879School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210 People’s Republic of China ,ShanghaiTech Laboratory for Topological Physics, Shanghai, 201210 People’s Republic of China ,grid.184769.50000 0001 2231 4551Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA 94720 USA
| | - A. J. Liang
- grid.440637.20000 0004 4657 8879School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210 People’s Republic of China ,ShanghaiTech Laboratory for Topological Physics, Shanghai, 201210 People’s Republic of China
| | - W. J. Shi
- grid.440637.20000 0004 4657 8879Center for Transformative Science, ShanghaiTech University, Shanghai, 201210 People’s Republic of China ,grid.440637.20000 0004 4657 8879Shanghai high repetition rate XFEL and extreme light facility (SHINE), ShanghaiTech University, Shanghai, 201210 People’s Republic of China
| | - D. Pei
- grid.4991.50000 0004 1936 8948Department of Physics, University of Oxford, Oxford, OX1 3PU UK
| | - L. X. Xu
- grid.440637.20000 0004 4657 8879School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210 People’s Republic of China ,grid.410726.60000 0004 1797 8419University of Chinese Academy of Sciences, Beijing, 100049 People’s Republic of China
| | - S. Liu
- grid.440637.20000 0004 4657 8879School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210 People’s Republic of China ,grid.410726.60000 0004 1797 8419University of Chinese Academy of Sciences, Beijing, 100049 People’s Republic of China
| | - J. Pan
- grid.454856.e0000 0001 1957 6294State Key Laboratory of High Performance Ceramics and Superfine Microstructure Shanghai Institute of Ceramics Chinese Academy of Science, Shanghai, 200050 People’s Republic of China
| | - D. H. Lu
- grid.445003.60000 0001 0725 7771Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, CA 94025 USA
| | - M. Hashimoto
- grid.445003.60000 0001 0725 7771Stanford Synchrotron Radiation Lightsource, SLAC National Accelerator Laboratory, Menlo Park, CA 94025 USA
| | - A. Barinov
- grid.5942.a0000 0004 1759 508XElettra-Sincrotrone Trieste, Trieste, Basovizza, 34149 Italy
| | - S. W. Jung
- grid.18785.330000 0004 1764 0696Diamond Light Source, Harwell Campus, Didcot, OX11 0DE UK ,grid.256681.e0000 0001 0661 1492Department of Physics, Gyeongsang National University, Jinju, 52828 Korea
| | - C. Cacho
- grid.18785.330000 0004 1764 0696Diamond Light Source, Harwell Campus, Didcot, OX11 0DE UK
| | - M. X. Wang
- grid.440637.20000 0004 4657 8879School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210 People’s Republic of China ,ShanghaiTech Laboratory for Topological Physics, Shanghai, 201210 People’s Republic of China
| | - Y. He
- grid.47840.3f0000 0001 2181 7878Department of Physics, University of California at Berkeley, Berkeley, CA 94720 USA
| | - L. Fu
- grid.116068.80000 0001 2341 2786Department of Physics, Massachusetts Institute of Technology, Cambridge, MA 02139 USA
| | - H. J. Zhang
- grid.41156.370000 0001 2314 964XNational Laboratory of Solid State Microstructures and School of Physics Nanjing University, Nanjing, 210093 People’s Republic of China ,grid.509497.6Collaborative Innovation Center of Advanced Microstructures, Nanjing, 210093 People’s Republic of China
| | - F. Q. Huang
- grid.454856.e0000 0001 1957 6294State Key Laboratory of High Performance Ceramics and Superfine Microstructure Shanghai Institute of Ceramics Chinese Academy of Science, Shanghai, 200050 People’s Republic of China ,grid.11135.370000 0001 2256 9319State Key Laboratory of Rare Earth Materials Chemistry and Applications College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871 People’s Republic of China
| | - L. X. Yang
- grid.12527.330000 0001 0662 3178State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing, 100084 People’s Republic of China ,Frontier Science Center for Quantum Information, Beijing, 100084 People’s Republic of China
| | - Z. K. Liu
- grid.440637.20000 0004 4657 8879School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210 People’s Republic of China ,ShanghaiTech Laboratory for Topological Physics, Shanghai, 201210 People’s Republic of China
| | - Y. L. Chen
- grid.440637.20000 0004 4657 8879School of Physical Science and Technology, ShanghaiTech University, Shanghai, 201210 People’s Republic of China ,grid.4991.50000 0004 1936 8948Department of Physics, University of Oxford, Oxford, OX1 3PU UK ,ShanghaiTech Laboratory for Topological Physics, Shanghai, 201210 People’s Republic of China ,grid.12527.330000 0001 0662 3178State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics, Tsinghua University, Beijing, 100084 People’s Republic of China
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7
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Liu DF, Liang AJ, Liu EK, Xu QN, Li YW, Chen C, Pei D, Shi WJ, Mo SK, Dudin P, Kim T, Cacho C, Li G, Sun Y, Yang LX, Liu ZK, Parkin SSP, Felser C, Chen YL. Magnetic Weyl semimetal phase in a Kagomé crystal. Science 2020; 365:1282-1285. [PMID: 31604236 DOI: 10.1126/science.aav2873] [Citation(s) in RCA: 139] [Impact Index Per Article: 34.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/02/2018] [Accepted: 08/14/2019] [Indexed: 11/02/2022]
Abstract
Weyl semimetals are crystalline solids that host emergent relativistic Weyl fermions and have characteristic surface Fermi-arcs in their electronic structure. Weyl semimetals with broken time reversal symmetry are difficult to identify unambiguously. In this work, using angle-resolved photoemission spectroscopy, we visualized the electronic structure of the ferromagnetic crystal Co3Sn2S2 and discovered its characteristic surface Fermi-arcs and linear bulk band dispersions across the Weyl points. These results establish Co3Sn2S2 as a magnetic Weyl semimetal that may serve as a platform for realizing phenomena such as chiral magnetic effects, unusually large anomalous Hall effect and quantum anomalous Hall effect.
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Affiliation(s)
- D F Liu
- Max Planck Institute of Microstructure Physics, Halle 06120, Germany.,School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - A J Liang
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China.,ShanghaiTech Laboratory for Topological Physics, Shanghai 200031, China.,Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - E K Liu
- Max Planck Institute for Chemical Physics of Solids, Dresden D-01187, Germany.,Institute of Physics, Chinese Academy of Sciences, Beijing 100190, China
| | - Q N Xu
- Max Planck Institute for Chemical Physics of Solids, Dresden D-01187, Germany
| | - Y W Li
- Clarendon Laboratory, Department of Physics, University of Oxford, Oxford OX1 3PU, UK
| | - C Chen
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China.,ShanghaiTech Laboratory for Topological Physics, Shanghai 200031, China.,Clarendon Laboratory, Department of Physics, University of Oxford, Oxford OX1 3PU, UK
| | - D Pei
- Clarendon Laboratory, Department of Physics, University of Oxford, Oxford OX1 3PU, UK
| | - W J Shi
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China
| | - S K Mo
- Advanced Light Source, Lawrence Berkeley National Laboratory, Berkeley, CA 94720, USA
| | - P Dudin
- Diamond Light Source, Didcot OX11 0DE, UK
| | - T Kim
- Diamond Light Source, Didcot OX11 0DE, UK
| | - C Cacho
- Diamond Light Source, Didcot OX11 0DE, UK
| | - G Li
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China.,ShanghaiTech Laboratory for Topological Physics, Shanghai 200031, China
| | - Y Sun
- Max Planck Institute for Chemical Physics of Solids, Dresden D-01187, Germany
| | - L X Yang
- State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics and Collaborative Innovation Center of Quantum Matter, Tsinghua University, Beijing 100084, China
| | - Z K Liu
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China.,ShanghaiTech Laboratory for Topological Physics, Shanghai 200031, China
| | - S S P Parkin
- Max Planck Institute of Microstructure Physics, Halle 06120, Germany
| | - C Felser
- Max Planck Institute for Chemical Physics of Solids, Dresden D-01187, Germany.,John A. Paulson School of Engineering and Applied Sciences, Harvard University, Cambridge, MA 02138, USA.,Department of Physics, Harvard University, Cambridge, MA 02138, USA
| | - Y L Chen
- School of Physical Science and Technology, ShanghaiTech University, Shanghai 201210, China. .,ShanghaiTech Laboratory for Topological Physics, Shanghai 200031, China.,Clarendon Laboratory, Department of Physics, University of Oxford, Oxford OX1 3PU, UK.,State Key Laboratory of Low Dimensional Quantum Physics, Department of Physics and Collaborative Innovation Center of Quantum Matter, Tsinghua University, Beijing 100084, China
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8
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Pei D, Xue G, Wu JF, Wang DM, Qin XJ. [Clinical analysis between trefoil factor 3 gene polymorphsims and susceptibility to papillary thyroid carcinoma]. Lin Chuang Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2019; 33:926-931. [PMID: 31623036 DOI: 10.13201/j.issn.1001-1781.2019.10.007] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Received: 04/06/2019] [Indexed: 06/10/2023]
Abstract
Objective:To explore the relationships between trefoil factor 3(TFF3) gene polymorphisms and susceptibility to papillary thyroid carcinoma(PTC) in Han population of northern China. Method:A case-control study was performed in 123 PTC patients and 108 healthy controls. Four SNPs in the TFF3 gene, including rs225361, rs533093, rs9981660 and rs225439, were detected by gene sequencing. Result:Compared with healthy people, there was no significant difference in the genotype frequencies of rs225361, rs9981660, rs533093 and rs225439 alleles in the PTC group(P>0.05). The CGTC and CGTT haploids of TFF3 gene were positively correlated with the occurrence of PTC, and CGCC and TGTC haploids were negatively correlated with the occurrence of PTC. TT genotype of rs9981660 had significant differences in the distribution of PTC with and without lymph node metastasis(P<0.05). Conclusion:Polymorphisms in 4 SNP loci in the TFF3 gene may be unrelated to the occurrence of PTC. The CGTC, CGTT, CGCC and TGTC haploids in the TFF3 gene might be related to the development of PTC. The TT genotype at rs9981660 may be associated with lymph node metastasis of PTC.
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Affiliation(s)
- D Pei
- Hebei North University Morphology Laboratory,Zhangjiakou,075000,China
| | - G Xue
- Department of Otorhinolaryngology Head and Neck Surgery,the First Hospital of Hebei North University
| | - J F Wu
- Hebei North University Morphology Laboratory,Zhangjiakou,075000,China
| | - D M Wang
- Hebei North University Morphology Laboratory,Zhangjiakou,075000,China
| | - X J Qin
- Hebei North University Morphology Laboratory,Zhangjiakou,075000,China
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9
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Ran X, Lee YK, Pan G, Pei D, Tse HF. 1430CRISPR/Cas9-mediated correction of Troponin I R186Q mutation rescues myofibrillar disarray and excitation-contraction coupling abnormalities in IPSC model from hypertrophic cardiomyopathy patient. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy565.1430] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/14/2022] Open
Affiliation(s)
- X Ran
- The University of Hong Kong, Cardiology Division, Department of Medicine, Hong Kong, Hong Kong SAR People's Republic of China
| | - Y K Lee
- The University of Hong Kong, Cardiology Division, Department of Medicine, Hong Kong, Hong Kong SAR People's Republic of China
| | - G Pan
- Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China People's Republic of
| | - D Pei
- Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China People's Republic of
| | - H F Tse
- The University of Hong Kong, Cardiology Division, Department of Medicine, Hong Kong, Hong Kong SAR People's Republic of China
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10
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Inaba H, Pei D, Wolf J, Howard SC, Hayden RT, Go M, Varechtchouk O, Hahn T, Buaboonnam J, Metzger ML, Rubnitz JE, Ribeiro RC, Sandlund JT, Jeha S, Cheng C, Evans WE, Relling MV, Pui CH. Infection-related complications during treatment for childhood acute lymphoblastic leukemia. Ann Oncol 2017; 28:386-392. [PMID: 28426102 DOI: 10.1093/annonc/mdw557] [Citation(s) in RCA: 91] [Impact Index Per Article: 13.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023] Open
Abstract
Background Comprehensive studies on neutropenia and infection-related complications in patients with acute lymphoblastic leukemia (ALL) are lacking. Patients and methods We evaluated infection-related complications that were grade ≥3 on National Cancer Institute's Common Terminology Criteria for Adverse Events (version 3.0) and their risk factors in 409 children with newly diagnosed ALL throughout the treatment period. Results Of the 2420 infection episodes, febrile neutropenia and clinically or microbiologically documented infection were seen in 1107 and 1313 episodes, respectively. Among documented infection episodes, upper respiratory tract was the most common site (n = 389), followed by ear (n = 151), bloodstream (n = 147), and gastrointestinal tract (n = 145) infections. These episodes were more common during intensified therapy phases such as remission induction and reinduction, but respiratory and ear infections, presumably viral in origin, also occurred during continuation phases. The 3-year cumulative incidence of infection-related death was low (1.0±0.9%, n = 4), including 2 from Bacillus cereus bacteremia. There was no fungal infection-related mortality. Age 1-9.9 years at diagnosis was associated with febrile neutropenia (P = 0.002) during induction and febrile neutropenia and documented infection (both P < 0.001) during later continuation. White race was associated with documented infection (P = 0.034) during induction. Compared with low-risk patients, standard- and high-risk patients received more intensive therapy during early continuation and had higher incidences of febrile neutropenia (P < 0.001) and documented infections (P = 0.043). Furthermore, poor neutrophil surge after dexamethasone pulses during continuation, which can reflect the poor bone marrow reserve, was associated with infections (P < 0.001). Conclusions The incidence of infection-related death was low. However, young age, white race, intensive chemotherapy, and lack of neutrophil surge after dexamethasone treatment were associated with infection-related complications. Close monitoring for prompt administration of antibiotics and modification of chemotherapy should be considered in these patients.
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Affiliation(s)
- H Inaba
- Department of Oncology, St. Jude Children's Research Hospital, Memphis,Tennessee, USA.,Department of Pediatrics, The University of Tennessee Health Science Center, Memphis,Tennessee, USA
| | - D Pei
- Department of Biostatistics, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - J Wolf
- Department of Pediatrics, The University of Tennessee Health Science Center, Memphis,Tennessee, USA.,Department of Infectious Diseases,, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - S C Howard
- Department of Oncology, St. Jude Children's Research Hospital, Memphis,Tennessee, USA.,Department of Pediatrics, The University of Tennessee Health Science Center, Memphis,Tennessee, USA
| | - R T Hayden
- Department of Pathology, St. Jude Children's Research Hospital, USA
| | - M Go
- Department of Oncology, St. Jude Children's Research Hospital, Memphis,Tennessee, USA
| | - O Varechtchouk
- Department of Oncology, St. Jude Children's Research Hospital, Memphis,Tennessee, USA
| | - T Hahn
- Department of Oncology, St. Jude Children's Research Hospital, Memphis,Tennessee, USA
| | - J Buaboonnam
- Department of Oncology, St. Jude Children's Research Hospital, Memphis,Tennessee, USA
| | - M L Metzger
- Department of Oncology, St. Jude Children's Research Hospital, Memphis,Tennessee, USA.,Department of Pediatrics, The University of Tennessee Health Science Center, Memphis,Tennessee, USA
| | - J E Rubnitz
- Department of Oncology, St. Jude Children's Research Hospital, Memphis,Tennessee, USA.,Department of Pediatrics, The University of Tennessee Health Science Center, Memphis,Tennessee, USA
| | - R C Ribeiro
- Department of Oncology, St. Jude Children's Research Hospital, Memphis,Tennessee, USA.,Department of Pediatrics, The University of Tennessee Health Science Center, Memphis,Tennessee, USA
| | - J T Sandlund
- Department of Oncology, St. Jude Children's Research Hospital, Memphis,Tennessee, USA.,Department of Pediatrics, The University of Tennessee Health Science Center, Memphis,Tennessee, USA
| | - S Jeha
- Department of Oncology, St. Jude Children's Research Hospital, Memphis,Tennessee, USA.,Department of Pediatrics, The University of Tennessee Health Science Center, Memphis,Tennessee, USA
| | - C Cheng
- Department of Biostatistics, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - W E Evans
- Department of Pharmaceutical Sciences, St. Jude Children's Research Hospital, Memphis,Tennessee, USA.,Department of Clinical Pharmacy, The University of Tennessee Health Science Center, Memphis, USA
| | - M V Relling
- Department of Pharmaceutical Sciences, St. Jude Children's Research Hospital, Memphis,Tennessee, USA.,Department of Clinical Pharmacy, The University of Tennessee Health Science Center, Memphis, USA
| | - C-H Pui
- Department of Oncology, St. Jude Children's Research Hospital, Memphis,Tennessee, USA.,Department of Pediatrics, The University of Tennessee Health Science Center, Memphis,Tennessee, USA
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11
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Xie MB, Sui XQ, Pei D, Yao Q, Huang Q. Study on the expression and mechanism of plasma microRNA-21 in patients with ischemic cardiomyopathy. Eur Rev Med Pharmacol Sci 2017; 21:4649-4653. [PMID: 29131249] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
OBJECTIVE To investigate the expression and mechanism of plasma microRNA-21 in patients with ischemic cardiomyopathy (ICM). PATIENTS AND METHODS 56 cases of ICM patients were selected in our hospital from February 2010 to March 2016 as the observation group, and 60 cases of healthy patients were selected as control group. Real-time quantitative polymerase chain reaction (qRT-PCR) was used to detect the expression of microRNA-21 in two groups. Then, differences of the total cholesterol (TC), triglycerides (TG), left ventricular ejection fraction (LVEF), high and low density lipoprotein cholesterol (HDL-C, LDL-C), left ventricular end-diastolic volume (LVEDV), N terminal B type brain natriuretic peptide (NT-proBNP) and other clinical indicators of the two groups, were compared. The correlation between the plasma microRNA-21 level and the clinical indices was analyzed, and the value of microRNA-21 in the diagnosis and treatment of ICM was evaluated. RESULTS The levels of LDL-C, HDL-C and LVEF in the observation group were lower than those in the control group (p<0.05). Plasma microRNA-21, TG, NT-proBNP and LVEDV were higher than those in the control group; the difference was statistically significant (p<0.05). Logistic regression analysis showed that the plasma microRNA-21 level was positively correlated with NT-proBNP and LVEDV (p<0.05). CONCLUSIONS The expression of microRNA-21 in plasma of patients with ICM was significantly increased. And the expression of micro RNA-21 in plasma was positively correlated with NT-proBNP and LVEDV. Through the ventricular remodeling in ICM patients, it can be used as a new target for the diagnosis and treatment of ICM and a new biomarker for risk assessment.
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Affiliation(s)
- M-B Xie
- Department of Cardiology, Hangzhou Red Cross Hospital, Hangzhou, Zhejiang, China.
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12
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Lai Y, Weng J, Wei X, Qin L, Lai P, Zhao R, Jiang Z, Li B, Lin S, Wang S, Wu Q, Tang Z, Liu P, Pei D, Yao Y, Du X, Li P. Toll-like receptor 2 costimulation potentiates the antitumor efficacy of CAR T Cells. Leukemia 2017; 32:801-808. [PMID: 28841215 DOI: 10.1038/leu.2017.249] [Citation(s) in RCA: 61] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2017] [Revised: 07/20/2017] [Accepted: 07/24/2017] [Indexed: 01/03/2023]
Abstract
Chimeric antigen receptor (CAR) T-cell immunotherapies have shown unprecedented success in treating leukemia but limited clinical efficacy in solid tumors. Here, we generated 1928zT2 and m28zT2, targeting CD19 and mesothelin, respectively, by introducing the Toll/interleukin-1 receptor domain of Toll-like receptor 2 (TLR2) to 1928z and m28z. T cells expressing 1928zT2 or m28zT2 showed improved expansion, persistency and effector function against CD19+ leukemia or mesothelin+ solid tumors respectively in vitro and in vivo. In a patient with relapsed B-cell acute lymphoblastic leukemia, a single dose of 5 × 104/kg 1928zT2 T cells resulted in robust expansion and leukemia eradication and led to complete remission. Hence, our results demonstrate that TLR2 signaling can contribute to the efficacy of CAR T cells. Further clinical trials are warranted to establish the safety and efficacy of this approach.
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Affiliation(s)
- Y Lai
- Key Laboratory of Regenerative Biology, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - J Weng
- Department of Hematology, Guangdong General Hospital/Guangdong Academy of Medical Sciences, Guangzhou, China
| | - X Wei
- Key Laboratory of Regenerative Biology, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - L Qin
- Key Laboratory of Regenerative Biology, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - P Lai
- Department of Hematology, Guangdong General Hospital/Guangdong Academy of Medical Sciences, Guangzhou, China
| | - R Zhao
- Key Laboratory of Regenerative Biology, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - Z Jiang
- Key Laboratory of Regenerative Biology, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - B Li
- Key Laboratory of Regenerative Biology, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - S Lin
- Key Laboratory of Regenerative Biology, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - S Wang
- Key Laboratory of Regenerative Biology, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - Q Wu
- Key Laboratory of Regenerative Biology, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - Z Tang
- Guangdong Zhaotai InVivo Biomedicine Co. Ltd., Guangzhou, China.,Hunan Zhaotai Yongren Medical Innovation Co. Ltd., Changsha, China
| | - P Liu
- Wellcome Trust Sanger Institute, Hinxton, Cambridge, UK
| | - D Pei
- Key Laboratory of Regenerative Biology, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - Y Yao
- Key Laboratory of Regenerative Biology, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China
| | - X Du
- Department of Hematology, Guangdong General Hospital/Guangdong Academy of Medical Sciences, Guangzhou, China
| | - P Li
- Key Laboratory of Regenerative Biology, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China.,Guangdong Provincial Key Laboratory of Stem Cell and Regenerative Medicine, South China Institute for Stem Cell Biology and Regenerative Medicine, Guangzhou Institutes of Biomedicine and Health, Chinese Academy of Sciences, Guangzhou, China.,Department of Abdominal Surgery, Affiliated Cancer Hospital & Institute of Guangzhou Medical University of Guangzhou Medical University, Guangzhou Medical University, Guangzhou, China
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13
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Chang JB, Chen YL, Hung YJ, Hsieh CH, Lee CH, Pei D, Lin JD, Wu CZ, Liang YJ, Lin CM. The Role of Uric Acid for Predicting Future Metabolic Syndrome and Type 2 Diabetes in Older People. J Nutr Health Aging 2017; 21:329-335. [PMID: 28244574 DOI: 10.1007/s12603-016-0749-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/13/2022]
Abstract
OBJECTIVE Although it is known that high uric acid (UA) level is associated with type 2 diabetes (T2DM) and metabolic syndrome (MetS), most of the previous studies were focused on adults. Since aging becomes a major problem for many societies, in this longitudinal study, we investigated the role of UA in future T2DM and MetS in a large cohort of people who were older than 65 years. DESIGN A cross-sectional and longitudinal study. SETTING/PARTICIPANTS 18,907 elderly (9,732 men, 9,175 women) aged above 65 years, enrolled from health check-up centers, were classified into three subgroups by 10-year intervals (young old 65-74 years, YO; old old 75-84 years, OO; and oldest old 85-94 years, ODO), with the average follow-up period of 4.3 years. MEASUREMENTS The optimal cut-off values (CoVs) of baseline UA to predict future MetS and T2DM were determined by receiving operating characteristic (ROC) curve analysis. Using these CoVs of UA, the participants were divided into normal- and high-level groups of UA. Cox proportional hazard analysis was used to calculate hazard ratios (HRs) for the subjects with a high level of UA for the risk of future MetS and T2DM. In addition, Kaplan-Meier plots and log rank test were used to evaluate the time effect on the incidence of developing MetS and T2DM between the two groups. RESULTS In ROC curve analysis, the optimal CoVs of baseline UA were 6.0, 6.3 and 6.7 mg/dl in YO, OO, and ODO men, respectively; 5.5 and 4.9 mg/dl in YO and OO women, respectively (all p < 0.05). However, the CoVs of UA in ODO women (6.1 mg/dl) failed to show its discriminant power (p = 0.13). The Cox regression analysis showed the YO subjects with a higher baseline level of UA had a higher risk of developing MetS (HRs 1.56 and 1.58 for men and women, respectively, both p < 0.001); as for T2DM the HRs were 1.39 and 1.57. In OO men, the HRs was 1.89 for developing future MetS. However, no significant findings could be noted in the ODO group. Kaplan-Meier plots and log rank test also showed the same findings. CONCLUSION Our study showed that old subjects with high levels of UA will have a higher chance to have MetS and T2DM, particularly in the YO group (6.0 mg/dl for men and 5.5 mg/dl for women, respectively). Using UA as one of the metabolic biomarkers may help clinicians to early detect and prevent MetS and diabetes.
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Affiliation(s)
- J-B Chang
- Chien-Ming Lin, MD, Department of Pediatrics, Tri-Service General Hospital, National Defense Medical Center; No. 325, Cheng-Kung Road, Section 2, Neihu 114, Taipei, Taiwan, R.O.C. E-mail: , Tel: 886-02-87927025, Fax: 886-02-87927293
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14
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Liu C, Yang W, Pei D, Cheng C, Smith C, Landier W, Hageman L, Chen Y, Yang JJ, Crews KR, Kornegay N, Karol SE, Wong FL, Jeha S, Sandlund JT, Ribeiro RC, Rubnitz JE, Metzger ML, Pui CH, Evans WE, Bhatia S, Relling MV. Genomewide Approach Validates Thiopurine Methyltransferase Activity Is a Monogenic Pharmacogenomic Trait. Clin Pharmacol Ther 2016; 101:373-381. [PMID: 27564568 DOI: 10.1002/cpt.463] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/19/2016] [Revised: 07/26/2016] [Accepted: 08/23/2016] [Indexed: 12/11/2022]
Abstract
We performed a genomewide association study (GWAS) of primary erythrocyte thiopurine S-methyltransferase (TPMT) activity in children with leukemia (n = 1,026). Adjusting for age and ancestry, TPMT was the only gene that reached genomewide significance (top hit rs1142345 or 719A>G; P = 8.6 × 10-61 ). Additional genetic variants (in addition to the three single-nucleotide polymorphisms [SNPs], rs1800462, rs1800460, and rs1142345, defining TPMT clinical genotype) did not significantly improve classification accuracy for TPMT phenotype. Clinical mercaptopurine tolerability in 839 patients was related to TPMT clinical genotype (P = 2.4 × 10-11 ). Using 177 lymphoblastoid cell lines (LCLs), there were 251 SNPs ranked higher than the top TPMT SNP (rs1142345; P = 6.8 × 10-5 ), revealing a limitation of LCLs for pharmacogenomic discovery. In a GWAS, TPMT activity in patients behaves as a monogenic trait, further bolstering the utility of TPMT genetic testing in the clinic.
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Affiliation(s)
- C Liu
- Department of Pharmaceutical Sciences, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - W Yang
- Department of Pharmaceutical Sciences, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - D Pei
- Department of Biostatistics, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - C Cheng
- Department of Biostatistics, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - C Smith
- Department of Pharmaceutical Sciences, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - W Landier
- School of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - L Hageman
- School of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - Y Chen
- School of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - J J Yang
- Department of Pharmaceutical Sciences, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - K R Crews
- Department of Pharmaceutical Sciences, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - N Kornegay
- Department of Pharmaceutical Sciences, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - S E Karol
- Department of Oncology, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - F L Wong
- Department of Population Sciences, City of Hope, Duarte, California, USA
| | - S Jeha
- Department of Oncology, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - J T Sandlund
- Department of Oncology, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - R C Ribeiro
- Department of Oncology, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - J E Rubnitz
- Department of Oncology, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - M L Metzger
- Department of Oncology, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - C-H Pui
- Department of Oncology, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - W E Evans
- Department of Pharmaceutical Sciences, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - S Bhatia
- School of Medicine, University of Alabama at Birmingham, Birmingham, Alabama, USA
| | - M V Relling
- Department of Pharmaceutical Sciences, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
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15
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Stock W, Diouf B, Crews KR, Pei D, Cheng C, Laumann K, Mandrekar SJ, Luger S, Advani A, Stone RM, Larson RA, Evans WE. An Inherited Genetic Variant in CEP72 Promoter Predisposes to Vincristine-Induced Peripheral Neuropathy in Adults With Acute Lymphoblastic Leukemia. Clin Pharmacol Ther 2016; 101:391-395. [PMID: 27618250 DOI: 10.1002/cpt.506] [Citation(s) in RCA: 45] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2016] [Revised: 08/23/2016] [Accepted: 08/25/2016] [Indexed: 01/28/2023]
Abstract
Peripheral neuropathy is a major toxicity of vincristine, yet no strategies exist for identifying adult patients at high-risk. We used a case-control design of 48 adults receiving protocol therapy for acute lymphoblastic leukemia (ALL) who developed vincristine-induced neuropathy (NCI grade 2-4) during treatment, and 48 matched controls who did not develop grade 2-4 neuropathy. Peripheral neuropathy was prospectively graded by National Cancer Institute (NCI) criteria. CEP72 promoter genotype (rs924607) was determined using polymerase chain reaction (PCR)-based single nucleotide polymorphism (SNP) genotyping. Frequency of the CEP72 T/T genotype was higher in cases (31% vs. 10%, P = 0.0221) and the incidence of vincristine-induced neuropathy (grades 2-4) was significantly higher in patients homozygous for the CEP72 T/T genotype. 75% of the 20 patients homozygous for the CEP72 T allele developed grade 2-4 neuropathy, compared to 44% of patients with CEP72 CC or CT genotype (P = 0.0221). The CEP72 polymorphism can identify adults at increased risk of vincristine-induced peripheral neuropathy.
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Affiliation(s)
- W Stock
- Section of Hematology Oncology, University of Chicago Medicine and Comprehensive Cancer Center, Chicago, Illinois, USA.,Alliance for Clinical Trials in Oncology, Chicago, Illinois, USA
| | - B Diouf
- Hematological Malignancies Program, St. Jude Children's Research Hospital, Memphis, Tennessee, USA.,Department of Pharmaceutical Sciences, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - K R Crews
- Hematological Malignancies Program, St. Jude Children's Research Hospital, Memphis, Tennessee, USA.,Department of Pharmaceutical Sciences, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - D Pei
- Hematological Malignancies Program, St. Jude Children's Research Hospital, Memphis, Tennessee, USA.,Department of Biostatistics, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - C Cheng
- Hematological Malignancies Program, St. Jude Children's Research Hospital, Memphis, Tennessee, USA.,Department of Biostatistics, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
| | - K Laumann
- Alliance for Clinical Trials in Oncology, Chicago, Illinois, USA.,Alliance Statistics and Data Center; Division of Biomedical Statistics and Informatics, Mayo Clinic, Rochester, Minnesota, USA
| | - S J Mandrekar
- Alliance for Clinical Trials in Oncology, Chicago, Illinois, USA.,Alliance Statistics and Data Center; Division of Biomedical Statistics and Informatics, Mayo Clinic, Rochester, Minnesota, USA
| | - S Luger
- University of Pennsylvania, ECOG-ACRIN Cancer Research Group, Philadelphia, Pennsylvania, USA
| | - A Advani
- Cleveland Clinic, Southwest Oncology Cooperative Group, Cleveland, Ohio, USA
| | - R M Stone
- Alliance for Clinical Trials in Oncology, Chicago, Illinois, USA
| | - R A Larson
- Section of Hematology Oncology, University of Chicago Medicine and Comprehensive Cancer Center, Chicago, Illinois, USA.,Alliance for Clinical Trials in Oncology, Chicago, Illinois, USA
| | - W E Evans
- Hematological Malignancies Program, St. Jude Children's Research Hospital, Memphis, Tennessee, USA.,Department of Pharmaceutical Sciences, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
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Abstract
Signal peptidases are membrane proteases that play crucial roles in the protein transport pathway of bacteria. They cleave off the signal peptide from precursor proteins that are membrane inserted by the SecYEG or Tat translocons. Signal peptide cleavage releases the translocated protein from the inner membrane allowing the protein to be exported to the periplasm, outer membrane, or secreted into the medium. Signal peptidases are very important proteins to study. They are unique serine proteases with a Ser-Lys dyad, catalyze cleavage at the membrane surface, and are promising potential antibacterial drug targets. This chapter will focus on the isolation of signal peptidases and the preprotein substrates, as well as describe a peptide library approach for characterizing the substrate specificity.
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Affiliation(s)
- R E Dalbey
- The Ohio State University, Columbus, OH, United States.
| | - D Pei
- The Ohio State University, Columbus, OH, United States
| | - Ö D Ekici
- The Ohio State University, Newark, OH, United States
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Huang CL, Chang HW, Chang JB, Chen JH, Lin JD, Wu CZ, Pei D, Hung YJ, Lee CH, Chen YL, Hsieh CH. Normal fasting plasma glucose predicts type 2 diabetes and cardiovascular disease in elderly population in Taiwan. QJM 2016; 109:515-22. [PMID: 26576838 PMCID: PMC4986423 DOI: 10.1093/qjmed/hcv204] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/03/2015] [Accepted: 10/20/2015] [Indexed: 12/15/2022] Open
Abstract
BACKGROUND Hyperglycemia increases prevalence of metabolic syndrome (MetS), type 2 diabetes (T2D) and cardiovascular disease (CVD). But the role of normoglycemia on the development of T2D and CVD in elderly population remains unclear. AIM To determine an optimal cut-off for fasting plasma glucose (FPG) to predict MetS and subsequent risk of T2D and CVD in an elderly Taiwanese population with normal FPG levels. DESIGN Two stages included cross-sectional (Stage 1) and prospective (Stage 2) cohort study. METHODS In Stage 1 18 287 subjects aged ≥60 years were enrolled; of these, 5039 without T2D and CVD advanced to Stage 2 and a mean follow-up of 3.8 years. MetS components were analysed, and in Stage 1, FPG cut-offs for MetS risk were calculated using receiver operating characteristic (ROC) curve analyses. In Stage 2, subjects without T2D and CVD in Stage 1 were classified into high-FPG and low-FPG groups based on cut-offs, and sex specific differences in incidence for T2D and CVD were calculated. RESULTS ROC curve analysis gave an optimal FPG cut-off for MetS of 93 mg/dl and 92 mg/dl for males and females, respectively. The high-FPG group had a 1.599- and 1.353-fold higher chance of developing T2D compared with the low-FPG group for males and females, respectively (95% CI: 1.606-2.721 and 1.000-1.831, P = 0.015 and 0.05). The high-FPG group had a 1.24-fold higher chance of developing CVD for females (95% CI: 1.015-1.515, P = 0.035); however, there was no difference for males. CONCLUSIONS Our results suggest that FPG within the normal range was associated with MetS, and elderly subjects with high normal levels have a higher incidence of developing T2D for both sexes, and CVD for females, over the short-term.
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Affiliation(s)
- C-L Huang
- From the Division of Endocrinology and Metabolism, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - H-W Chang
- From the Division of Endocrinology and Metabolism, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - J-B Chang
- Division of Clinical Pathology, Department of Pathology, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - J-H Chen
- From the Division of Endocrinology and Metabolism, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - J-D Lin
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Shuang-Ho Hospital, Taipei Medical University, Taipei, Taiwan
| | - C-Z Wu
- Division of Endocrinology and Metabolism, Cardinal Tien Hospital, New Taipei City, Taiwan and
| | - D Pei
- Division of Endocrinology and Metabolism, Cardinal Tien Hospital, New Taipei City, Taiwan and
| | - Y-J Hung
- From the Division of Endocrinology and Metabolism, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - C-H Lee
- From the Division of Endocrinology and Metabolism, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
| | - Y-L Chen
- Department of Pathology, Cardinal Tien Hospital, New Taipei City, Taiwan
| | - C-H Hsieh
- From the Division of Endocrinology and Metabolism, Department of Internal Medicine, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan
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Chen JH, Hsieh CH, Liu JS, Chuang TJ, Chang HW, Huang CL, Li PF, Pei D, Chen YL. The Power of Serum Uric Acid in Predicting Metabolic Syndrome Diminishes With Age in an Elderly Chinese Population. J Nutr Health Aging 2016; 20:912-917. [PMID: 27791221 DOI: 10.1007/s12603-015-0633-6] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/22/2022]
Abstract
OBJECTIVES Although serum uric acid (sUA) is not a criterion for diagnosing metabolic syndrome (MetS), many studies have identified a positive association between sUA and MetS in patients of various ages and ethnicities. This association has not been fully established in the very elderly. DESIGN Cross-sectional and longitudinal study. SETTING AND PARTICIPANTS A total of 18,906 Chinese elderly aged 65 and older undergoing routine health checkups in Taiwan were enrolled. MEASUREMENTS Modified Adult Treatment Panel III criteria were used to define MetS. All participants were further divided into nine groups with gender specification according to age (the young-old, 65 to 74; old-old, 75 to 84; and oldest-old, 85 and over) and sUA concentration tertile (males: sUAG1, <5.7 mg/dL; sUAG2, 5.7-6.7 mg/dL; and sUAG3, > 6.7 mg/dL; females: sUAG1, <4.9 mg/dL; sUAG2, 4.9-5.9 mg/dL; and sUAG3, > 5.9 mg/dL). A cross-sectional study was first performed to determine the correlation between sUA and MetS and its components. A longitudinal study then excluded subjects with MetS at baseline to explore the risk of MetS according to sUA levels in 3 age groups. RESULTS In the cross-sectional study, we observed a graded, positive association between sUA and MetS components that diminished after age 75. Subjects with higher sUA levels had higher odds ratios (OR) for the occurrence of MetS in the young-old and old-old groups of both sexes (P<0.001) except sUAG2 males in the old-old group. However, the association diminished with age and only a higher OR was observed in sUAG2 males in the oldest-old group (OR, 3.38; 95% CI, 1.11-10.30; P = 0.032). In the longitudinal study, the Kaplan-Meier plot showed that higher sUA levels were associated with a higher risk of MetS in the young-old group of both genders (P < 0.001 sUAG3 vs. sUAG1 and sUAG2). Cox regression analysis further confirmed these results (young-old group: sUAG3 HR, 1.90; 95% CI, 1.42-2.54; P < 0.001; old-old group males: HR, 2.20; 95% CI, 1.04-4.65; P = 0.039; young-old females: HR, 1.83; 95% CI, 1.38 - 2.43; P < 0.001). CONCLUSIONS Higher sUA levels in the young-old group of Chinese elderly were associated with a higher risk of developing MetS. sUA levels are thus regarded as a potential tool for early diagnosis of MetS. However, this association diminished in those over 75 years of age.
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Affiliation(s)
- J-H Chen
- Yen-Lin Chen, MD, Department of Pathology, Cardinal Tien Hospital, School of Medicine, Fu-Jen Catholic University, New Taipei City, Tawian, Cardinal Tien Hospital, No. 362, Chung-Cheng Road, Xindian, New Taipei City 23137, Taiwan, , Tel.: +886 2 22193391, Fax: +886 2 22191170
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19
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Lee SF, Pei D, Chi MJ, Jeng C. An investigation and comparison of the effectiveness of different exercise programmes in improving glucose metabolism and pancreatic β cell function of type 2 diabetes patients. Int J Clin Pract 2015; 69:1159-70. [PMID: 26119968 DOI: 10.1111/ijcp.12679] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
BACKGROUND Moderately intensive aerobic exercise can improve glucose metabolism and pancreatic β cell function in diabetic patients. To date, there is no evidence to support the long-term effectiveness of home-based exercise interventions on these outcomes. OBJECTIVE This study investigated the effectiveness of two moderately intense exercise programmes on glucose metabolism and pancreatic β cell function in type 2 diabetes mellitus (T2DM) patients. METHODS A randomised controlled trial of 120 T2DM patients (with a mean age of 55.54 ± 9.09 years) was conducted. Patients were assigned by block randomisation to either an aerobic exercise group (AEG), an accumulated million steps group (AMSG), or a control group (CG); each consisting of 40 patients. Glucose metabolism and pancreatic β cell function of patients were measured at three time intervals for 1 year. RESULTS There was no difference in baseline scores, and respective compliance rates for the AEG and AMSG were 94.4% and 99.2%. After generalised estimating equation analysis, the AMSG results for glycated haemoglobin (HbA1c) were significantly lower than those of the CG. The insulinogenic index-acute insulin response (BIGTT-AIR ) of both exercise groups was significantly higher than that of the CG. The AMSG group improved their overall HbA1c and BIGTT-AIR results compared with the AEG group after 3 months exercise programme (T1 ) and 12 months of implementation (T2 ). CONCLUSION This study demonstrates that regardless of the type of exercise intervention, it is potentially beneficially effective for glucose metabolism and pancreatic β cell function in T2DM patients. The AMSG had better glucose metabolism and pancreatic β cell function compared with those in the AEG. Nurses can easily integrate exercise interventions into T2DM patient care plans.
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Affiliation(s)
- S F Lee
- Cardinal Tien College of Healthcare & Management, New Taipei City, Taiwan
- Graduate Institute of Nursing, College of Nursing, Taipei Medical University, Taipei, Taiwan
| | - D Pei
- Department of Internal Medicine, Cardinal Tien Hospital, New Taipei City, Taiwan
- Medical School, Fu Jen Catholic University, New Taipei City, Taiwan
| | - M J Chi
- Graduate Institute of Nursing, College of Nursing, Taipei Medical University, Taipei, Taiwan
| | - C Jeng
- Graduate Institute of Nursing, College of Nursing, Taipei Medical University, Taipei, Taiwan
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20
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Wei SH, Lin JD, Hsu CH, Wu CZ, Hsieh CH, Pei D, Chang JB, Liang YJ, Hsia TL, Chen YL. Higher normal range of fasting plasma glucose still has a higher risk for metabolic syndrome: a combined cross-sectional and longitudinal study in elderly. Int J Clin Pract 2015; 69:863-70. [PMID: 25757152 DOI: 10.1111/ijcp.12633] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
INTRODUCTION It is well known that higher fasting plasma glucose (FPG) is associated with metabolic syndrome (MetS). This relationship still exists even the FPG is within the normal range. However, most of these studies did not exclude subjects who were on medications which would affect the results of the studies. At the same time, there is no longitudinal study done to validate this correlation, especially in elderly. In this study, the relationships between normal FPG and MetS were evaluated. METHOD We randomly selected 57,517 subjects who were ≥ 60-years old from health screening centre. In the first part of study, subjects were enrolled in the cross-sectional study to find out the optimal cut-off value of FPG with higher chances to have MetS. In the second part of current study, subjects with MetS at baseline were excluded from the same study group, and performed a median 5.3-year longitudinal study. RESULTS There were 18,287 subjects enrolled in this study. In the first part of study, the cross-sectional study, optimal cut-off values of FPG were determined by the ROC curve and the sensitivity for these cut-off values were 56.6% in men and 60.9% in women, respectively. The result showed that lower FPG is healthier than the higher (log-rank test, p < 0.001). During the follow-up period, 5039 subjects showed hazard ratios of 2.09 for men and 1.884 for women developing future MetS. CONCLUSION Our study is the first longitudinal design in elderly and showed that older subjects with higher FPG proved to have higher risk of Mets even the FPG is still within its normal range.
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Affiliation(s)
- S-H Wei
- Department of Family Medicine, School of Medicine, Cardinal Tien Hospital, Fu-Jen Catholic University, New Taipei City, Taiwan
| | - J-D Lin
- Division of Endocrinology and Metabolism, Department of Medicine, Shuang-Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - C-H Hsu
- Department of Family Medicine, School of Medicine, Cardinal Tien Hospital, Fu-Jen Catholic University, New Taipei City, Taiwan
| | - C-Z Wu
- Division of Endocrinology and Metabolism, Department of Medicine, Shuang-Ho Hospital, Taipei Medical University, New Taipei City, Taiwan
| | - C-H Hsieh
- Division of Endocrinology and Metabolism, Department of Internal Medicine, National Defense Medical Center, Tri-Service General Hospital, Taipei, Taiwan
| | - D Pei
- Department of Internal Medicine, School of Medicine, Cardinal Tien Hospital, Fu-Jen Catholic University, New Taipei City, Taiwan
| | - J-B Chang
- Division of Clinical Pathology, Department of Pathology, National Defense Medical Center, Tri-Service General Hospital, Taipei, Taiwan
| | - Y-J Liang
- Department of Life-Science, Fu-Jen Catholic University, Taipei, Taiwan
| | - T-L Hsia
- Department of Internal Medicine, School of Medicine, Cardinal Tien Hospital, Fu-Jen Catholic University, New Taipei City, Taiwan
| | - Y-L Chen
- Department of Pathology, School of Medicine, Cardinal Tien Hospital, Fu-Jen Catholic University, New Taipei City, Taiwan
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21
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Chen Y, Pei D, Hung Y, Lee C, Hsiao F, Wu C, Lin J, Hsu C, Chang J, Hsieh C. Associations between genetic variants and the severity of metabolic syndrome in subjects with type 2 diabetes. Genet Mol Res 2015; 14:2518-26. [DOI: 10.4238/2015.march.30.10] [Citation(s) in RCA: 14] [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: 11/03/2022]
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Pui CH, Pei D, Campana D, Cheng C, Sandlund JT, Bowman WP, Hudson MM, Ribeiro RC, Raimondi SC, Jeha S, Howard SC, Bhojwani D, Inaba H, Rubnitz JE, Metzger ML, Gruber TA, Coustan-Smith E, Downing JR, Leung WH, Relling MV, Evans WE. A revised definition for cure of childhood acute lymphoblastic leukemia. Leukemia 2014; 28:2336-43. [PMID: 24781017 PMCID: PMC4214904 DOI: 10.1038/leu.2014.142] [Citation(s) in RCA: 90] [Impact Index Per Article: 9.0] [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: 04/09/2014] [Accepted: 04/11/2014] [Indexed: 12/22/2022]
Abstract
With improved contemporary therapy, we re-assess long-term outcome in patients completing treatment for childhood acute lymphoblastic leukemia to determine when cure can be declared with a high degree of confidence. In 6 successive clinical trials between 1984 and 2007, 1291(84.5%) patients completed all therapy in continuous complete remission. The post-therapy cumulative risk of relapse or development of a second neoplasm and the event-free survival rate and overall survival were analyzed according to the presenting features and the three treatment periods defined by relative outcome. Over the three treatment periods, there has been progressive increase in the rate of event-free survival (65.2% vs. 74.8% vs. 85.1% [P<0.001]) and overall survival (76.5% vs. 81.1% vs. 91.7% [P<0.001]) at 10 years. The most important predictor of outcome after completion of therapy was the type of treatment. In the most recent treatment period, which omitted the use of prophylactic cranial irradiation, the post-treatment cumulative risk of relapse was 6.4%, death in remission 1.5%, and development of a second neoplasm 2.3% at 10 years, with all relapses except one occurring within 4 years off therapy. None of the 106 patients with the t(9;22)/BCR-ABL1, t(1;19)/TCF3-PBX1 or t(4;11)/MLL-AFF1 had relapsed after 2 years from completion of therapy. These findings demonstrate that with contemporary effective therapy that excludes cranial irradiation, approximately 6% of children with acute lymphoblastic leukemia may relapse after completion of treatment, and those who remain in remission at 4 years post-treatment may be considered cured (i.e., less than 1 % chance of relapse).
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Affiliation(s)
- C H Pui
- 1] Department of Oncology, St Jude Children's Research Hospital, Memphis, TN, USA [2] Department of Pathology, St Jude Children's Research Hospital, Memphis, TN, USA
| | - D Pei
- Department of Biostatistics, St Jude Children's Research Hospital, Memphis, TN, USA
| | - D Campana
- Centre for Translational Medicine, National University of Singapore, Singapore, Singapore
| | - C Cheng
- Department of Biostatistics, St Jude Children's Research Hospital, Memphis, TN, USA
| | - J T Sandlund
- Department of Oncology, St Jude Children's Research Hospital, Memphis, TN, USA
| | - W P Bowman
- Department of Pediatrics, University of North Texas Health Science Center, Fort Worth, TX, USA
| | - M M Hudson
- Department of Oncology, St Jude Children's Research Hospital, Memphis, TN, USA
| | - R C Ribeiro
- Department of Oncology, St Jude Children's Research Hospital, Memphis, TN, USA
| | - S C Raimondi
- Department of Pathology, St Jude Children's Research Hospital, Memphis, TN, USA
| | - S Jeha
- Department of Oncology, St Jude Children's Research Hospital, Memphis, TN, USA
| | - S C Howard
- Department of Oncology, St Jude Children's Research Hospital, Memphis, TN, USA
| | - D Bhojwani
- Department of Oncology, St Jude Children's Research Hospital, Memphis, TN, USA
| | - H Inaba
- Department of Oncology, St Jude Children's Research Hospital, Memphis, TN, USA
| | - J E Rubnitz
- Department of Oncology, St Jude Children's Research Hospital, Memphis, TN, USA
| | - M L Metzger
- Department of Oncology, St Jude Children's Research Hospital, Memphis, TN, USA
| | - T A Gruber
- Department of Oncology, St Jude Children's Research Hospital, Memphis, TN, USA
| | - E Coustan-Smith
- Centre for Translational Medicine, National University of Singapore, Singapore, Singapore
| | - J R Downing
- Department of Pathology, St Jude Children's Research Hospital, Memphis, TN, USA
| | - W H Leung
- Department of Bone Marrow Transplantation and Cellular Therapy, St Jude Children's Research Hospital, Memphis, TN, USA
| | - M V Relling
- Department of Pharmaceutical Sciences, St Jude Children's Research Hospital, Memphis, TN, USA
| | - W E Evans
- Department of Pharmaceutical Sciences, St Jude Children's Research Hospital, Memphis, TN, USA
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Wei S, Lin J, Hsu C, Wu C, Lian W, Chen Y, Pei D, Liang Y, Chang J. Higher uric acid is associated with higher rate of metabolic syndrome in Chinese elderly. Eur Geriatr Med 2014. [DOI: 10.1016/j.eurger.2013.10.006] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022]
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Deng Y, Zhang X, Zhao X, Li Q, Ye Z, Li Z, Liu Y, Zhou Y, Ma H, Pan G, Pei D, Fang J, Wei S. Long-term self-renewal of human pluripotent stem cells on peptide-decorated poly(OEGMA-co-HEMA) brushes under fully defined conditions. Acta Biomater 2013; 9:8840-50. [PMID: 23891809 DOI: 10.1016/j.actbio.2013.07.017] [Citation(s) in RCA: 39] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/22/2013] [Revised: 07/13/2013] [Accepted: 07/16/2013] [Indexed: 01/07/2023]
Abstract
Realization of the full potential of human induced pluripotent stem cells (hiPSC) in clinical applications requires the development of well-defined culture conditions for their long-term growth and directed differentiation. This paper describes a novel fully defined synthetic peptide-decorated substrate that supports self-renewal of hiPSC in commercially available xeno-free, chemically defined medium. The Au surface was deposited by a poly(OEGMA-co-HEMA) film, using the surface-initiated polymerization method (SIP) with the further step of carboxylation. The hiPSC generated from umbilical cord mesenchymal cells were successfully cultured for 10 passages on the peptide-tethered poly(OEGMA-co-HEMA) brushes for the first time. Cells maintained their characteristic morphology, proliferation and expressed high levels of markers of pluripotency, similar to the cells cultured on Matrigel™. Moreover, the cell adhesion could be tuned by the pattern and peptide concentration on the substrate. This well-defined, xeno-free and safe substrate, which supports long-term proliferation and self-renewal of hiPSC, will not only help to accelerate the translational perspectives of hiPSC, but also provide a platform to elucidate the underlying molecular mechanisms that regulate stem cell proliferation and differentiation via SIP technology.
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Affiliation(s)
- Y Deng
- Department of Prosthodontics, Laboratory of Interdisciplinary Studies, School and Hospital of Stomatology, Peking University, Beijing 100081, China; Center for Biomedical Materials and Tissue Engineering, Academy for Advanced Interdisciplinary Studies, Peking University, Beijing 100871, China
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25
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Lian WC, Lin JD, Hsia TL, Hsu CH, Wu CZ, Hsieh CH, Pei D, Chen YL. Metabolic syndrome in normoglycaemic elderly men. Int J Clin Pract 2013; 67:964-70. [PMID: 24073972 DOI: 10.1111/ijcp.12166] [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] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/20/2012] [Accepted: 03/10/2013] [Indexed: 12/20/2022] Open
Abstract
OBJECTIVE Type-2 diabetes is mainly the metabolic defect involving multiple organs. To conclude their intricate relationships, the term 'ominous octet' had been proposed to denote this phenomenon. In this study, we enrolled older men without any medications for MetS components to further elucidate the relationships between normoglycaemic state and MetS. METHODS We enrolled male subjects with FPG less than 100 mg/dl and aged 65 and older undergoing routine health check-ups in Taiwan. After excluding subjects taking medications that might affect the components of MetS, a total of 6679 men were eligible for the analysis. Study subjects were further grouped into FPG tertiles (< 91 mg/dl, 92-95 mg/dl and > 95 mg/dl for tertil 1, tertil 2 and tertil 3, respectively). RESULTS There was a significant trend between the FPG and percentages of subjects having MetS (p = 0.009). The relationships between the MetS components were higher in FPG 2 and FPG 3 than FPG 1. In simple correlation, all of the MetS and LDL-C were positively correlated with FPG level and multiple regression further confirmed the same result except for HDL-C that became non-significant. Subjects in FPG3 had significantly higher ORs (ORs = 1.19) for having MetS than those in FPG1. CONCLUSIONS In conclusion, higher FPG still had higher risk of having MetS in normoglycaemic range in elderly male. More strict FPG level control may be valuable in CVD prevention and warrants further investigations.
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Affiliation(s)
- W-C Lian
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Buddhist Dalin Tzu Chi General Hospital and School of Medicine, Tzu Chi University, Hualian, Taiwan
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Deng D, Huang X, Huang C, Yang T, Du X, Wang Y, Ouyang X, Pei D. Effects of chlorhexidine on bonding durability of different adhesive systems using a novel thermocycling method. Aust Dent J 2013; 58:148-55. [DOI: 10.1111/adj.12038] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2012] [Revised: 07/26/2012] [Accepted: 07/27/2012] [Indexed: 11/26/2022]
Affiliation(s)
- D Deng
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education; School and Hospital of Stomatology; Wuhan University; Wuhan; China
| | | | - C Huang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education; School and Hospital of Stomatology; Wuhan University; Wuhan; China
| | - T Yang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education; School and Hospital of Stomatology; Wuhan University; Wuhan; China
| | - X Du
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education; School and Hospital of Stomatology; Wuhan University; Wuhan; China
| | - Y Wang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education; School and Hospital of Stomatology; Wuhan University; Wuhan; China
| | - X Ouyang
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education; School and Hospital of Stomatology; Wuhan University; Wuhan; China
| | - D Pei
- The State Key Laboratory Breeding Base of Basic Science of Stomatology (Hubei-MOST) and Key Laboratory of Oral Biomedicine Ministry of Education; School and Hospital of Stomatology; Wuhan University; Wuhan; China
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Conklin HM, Krull KR, Reddick WE, Pei D, Cheng C, Pui CH. Cognitive outcomes following contemporary treatment without cranial irradiation for childhood acute lymphoblastic leukemia. J Natl Cancer Inst 2012; 104:1386-95. [PMID: 22927505 DOI: 10.1093/jnci/djs344] [Citation(s) in RCA: 109] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
BACKGROUND Treatment of acute lymphoblastic leukemia (ALL) has included the use of prophylactic cranial irradiation in up to 20% of children with high-risk disease despite known cognitive risks of this treatment modality. METHODS Patients enrolled on the St Jude ALL Total Therapy Study XV, which omitted prophylactic cranial irradiation in all patients, were assessed 120 weeks after completion of consolidation therapy (n = 243) using a comprehensive cognitive battery. χ(2) analysis was used to compare the percentage of below-average performers among the entire ALL patient group to the expected rate based on the normative sample. Univariate logistic regression was used to estimate the effect of intensity of chemotherapy (treatment arm), age at diagnosis, and sex on the probability of below-average performance. All statistical tests were two-sided. RESULTS Overall, the ALL group had a statistically significantly higher risk for below-average performance on a measure of sustained attention (67.31% more than 1 SD below the normative mean for omission errors, P < .001) but not on measures of intellectual functioning, academic skills, or memory. Patients given higher intensity chemotherapy were at greater risk for below-average performance compared with those given lower intensity therapy on measures of processing speed (27.14% vs 6.25%, P = .009) and academic abilities (Math Reasoning: 18.60% vs 3.90%, P = .008; Word Reading: 20.00% vs 2.60%, P = .007; Spelling: 27.91% vs 3.90%, P = .001) and had higher parent-reported hyperactivity (23.00% vs 9.84%, P = .018) and learning problems (35.00% vs 16.39%, P = .005). Neither age at diagnosis nor sex was associated with risk for below-average cognitive performance. CONCLUSIONS Omitting cranial irradiation may help preserve global cognitive abilities, but treatment with chemotherapy alone is not without risks. Caregiver education and development of interventions should address both early attention deficits and cognitive late effects.
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Affiliation(s)
- H M Conklin
- Department of Psychology, St Jude Children's Research Hospital, 262 Danny Thomas Place, Memphis, TN 38105-2794, USA.
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Pei D, Xu X, Feng Y, Li C. First Report of Powdery Mildew Caused by Golovinomyces cichoracearum on Sonchus asper in China. Plant Dis 2012; 96:766. [PMID: 30727551 DOI: 10.1094/pdis-01-12-0033-pdn] [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: 06/09/2023]
Abstract
Sonchus asper is an exotic annual herb belonging to the Asteraceae family. Crude extracts of S. asper leaves have antiphlogistic and antibacterial properties. In May 2011, severe infection of powdery mildew was observed on S. asper in Henan Province, a central area of China. Symptoms began as small, nearly circular white spots that later enlarged and coalesced. As the disease progressed, white mycelia covered the entire plant, including the inflorescence. The voucher specimens are kept at the Key Laboratory of Plant-Microbe Interaction, Shangqiu Normal University. Conidiophores were erect, 108 to 220 × 10 to 12 μm, and composed of a cylindrical foot cell followed by two to three short cells. Nipple-shaped appressoria were formed on ectophytic mycelia. Conidia were hyaline and cylindrical, without distinct fibrosin bodies, and ranging from 29 to 42 × 19 to 24 μm. Long, unbranched germ tubes were formed from the ends of the conidia. These morphological characteristics suggested that the powdery mildew fungus is the anamorph of Golovinomyces cichoracearum (1,2). Chasmothecia were not observed in the collected samples. To confirm the identification, the internal transcribed spacer (ITS) region of the rDNA was amplified with ITS1 and ITS4 primers (4) and sequenced. The ITS sequence obtained was assigned Accession No. JQ010848 in GenBank, and had 99% similarity to two ITS sequences from different G. cichoracearum accessions (HM449077 and AY739111). The ITS sequence analysis further verified that the causal agent of the powdery mildew on S. asper was G. cichoracearum. Pathogenicity was confirmed by inoculating five healthy plants of S. asper with a conidial suspension (105 conidia/ml) from the infected plants, with five noninoculated plants serving as control. Inoculated plants developed the original powdery mildew symptoms after 10 days, whereas control plants remained healthy. G. cichoracearum (synonym Erysiphe cichoracearum) is a cosmopolitan powdery mildew fungus, parasitic on numerous plant species in the Asteraceae family. It was reported to be infecting S. asper in Bulgaria (3). To our knowledge, this is the first report of G. cichoracearum infections on S. asper in China. S. asper is one of the most important Chinese herbal medicines. The sudden appearance of powdery mildew caused by G. cichoracearum on this plant could result in substantial production loss of S. asper unless fungicide applications are employed. References: (1) U. Braun. Beih. Nova Hedwigia 89:1, 1987. (2) R. T. A. Cook and U. Braun. Mycol. Res. 113:616, 2009. (3) G. Negrean and C. M. Denchev. Mycologia Balcanica, 2004, 1:63. (4) T. J. White et al. Page 315 in: PCR Protocols: A Guide to Methods and Applications. M. A. Innis et al., eds. Academic Press, San Diego, CA, 1990.
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Affiliation(s)
- D Pei
- Key Laboratory of Plant-Microbe Interaction, Department of Life Science, Shangqiu Normal University, Shangqiu 476000, China
| | - X Xu
- Key Laboratory of Plant-Microbe Interaction, Department of Life Science, Shangqiu Normal University, Shangqiu 476000, China
| | - Y Feng
- Key Laboratory of Plant-Microbe Interaction, Department of Life Science, Shangqiu Normal University, Shangqiu 476000, China
| | - C Li
- Key Laboratory of Plant-Microbe Interaction, Department of Life Science, Shangqiu Normal University, Shangqiu 476000, China, and Key Laboratory of Plant Genetics and Molecular Breeding, Department of Life Science, Zhoukou Normal University, Zhoukou 466001, China
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Liu C, Kawedia JD, Cheng C, Pei D, Fernandez CA, Cai X, Crews KR, Kaste SC, Panetta JC, Bowman WP, Jeha S, Sandlund JT, Evans WE, Pui CH, Relling MV. Clinical utility and implications of asparaginase antibodies in acute lymphoblastic leukemia. Leukemia 2012; 26:2303-9. [PMID: 22484422 DOI: 10.1038/leu.2012.102] [Citation(s) in RCA: 88] [Impact Index Per Article: 7.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023]
Abstract
Hypersensitivity to asparaginase is common, but the differential diagnosis can be challenging and the diagnostic utility of antibody tests is unclear. We studied allergic reactions and serum antibodies to E. coli asparaginase (Elspar) in 410 children treated on St. Jude Total XV protocol for acute lymphoblastic leukemia. Of 169 patients (41.2%) with clinical allergy, 147 (87.0%) were positive for anti-Elspar antibody. Of 241 patients without allergy, 89 (36.9%) had detectable antibody. Allergies (P=0.0002) and antibodies (P=6.6 × 10(-6)) were higher among patients treated on the low-risk arm than among those treated on the standard/high-risk arm. Among those positive for antibody, the antibody titers were higher in those who developed allergy than in those who did not (P<1 × 10(-15)). Antibody measures at week 7 of continuation therapy had a sensitivity of 87-88% and a specificity of 68-69% for predicting or confirming clinical reactions. The level of antibodies was inversely associated with serum asparaginase activity (P=7.0 × 10(-6)). High antibody levels were associated with a lower risk of osteonecrosis (odds ratio=0.83; 95% confidence interval, 0.78-0.89; P=0.007). Antibodies were related to clinical allergy and to low systemic exposure to asparaginase, leading to lower risk of some adverse effects of therapy.
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Affiliation(s)
- C Liu
- Department of Pharmaceutical Sciences, Memphis, TN, USA
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Bhojwani D, Pei D, Sandlund JT, Jeha S, Ribeiro RC, Rubnitz JE, Raimondi SC, Shurtleff S, Onciu M, Cheng C, Coustan-Smith E, Bowman WP, Howard SC, Metzger ML, Inaba H, Leung W, Evans WE, Campana D, Relling MV, Pui CH. ETV6-RUNX1-positive childhood acute lymphoblastic leukemia: improved outcome with contemporary therapy. Leukemia 2012; 26:265-70. [PMID: 21869842 PMCID: PMC3345278 DOI: 10.1038/leu.2011.227] [Citation(s) in RCA: 82] [Impact Index Per Article: 6.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2011] [Revised: 06/30/2011] [Accepted: 07/20/2011] [Indexed: 11/08/2022]
Abstract
ETV6-RUNX1 fusion is the most common genetic aberration in childhood acute lymphoblastic leukemia (ALL). To evaluate whether outcomes for this drug-sensitive leukemia are improved by contemporary risk-directed therapy, we studied clinical features, response and adverse events of 168 children with newly diagnosed ETV6-RUNX1-positive ALL on St Jude Total Therapy studies XIIIA (N=36), XIIIB (N=38) and XV (N=94). Results were compared with 494 ETV6-RUNX1-negative B-precursor ALL patients. ETV6-RUNX1 was associated with age 1-9 years, pre-treatment classification as low risk and lower levels of minimal residual disease (MRD) on day 19 of therapy (P<0.001). Event-free survival (EFS) or overall survival (OS) did not differ between patients with or without ETV6-RUNX1 in Total XIIIA or XIIIB. By contrast, in Total XV, patients with ETV6-RUNX1 had significantly better EFS (P=0.04; 5-year estimate, 96.8±2.4% versus 88.3±2.5%) and OS (P=0.04; 98.9±1.4% versus 93.7±1.8%) than those without ETV6-RUNX1. Within the ETV6-RUNX1 group, the only significant prognostic factor associated with higher OS was the treatment protocol Total XV (versus XIIIA or XIIIB) (P=0.01). Thus, the MRD-guided treatment schema including intensive asparaginase and high-dose methotrexate in the Total XV study produced significantly better outcomes than previous regimens and demonstrated that nearly all children with ETV6-RUNX1 ALL can be cured.
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Affiliation(s)
- D Bhojwani
- Department of Oncology, St Jude Children's Research Hospital, Memphis, TN 38105, USA.
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Abstract
Retinoid-X receptor (RXR) is one of the members of the nuclear hormone receptor superfamily. It forms heterodimers with many nuclear receptors, such as the peroxisome proliferative-activated receptor, which has been proposed to be involved in diabetic complications, including retinopathy. A recent study revealed that RXR-alpha has antioxidant properties and is associated with diabetic retinopathy. We found that the RXR-gamma gene is involved in the pathogenesis of diabetic nephropathy. We also hypothesized that the RXR-gamma gene has a role in the development of diabetic retinopathy. We examined 213 diabetic patients, who were divided into retinopathy or no retinopathy groups. Nine selected single nucleotide polymorphisms (SNPs) in the RXR-gamma gene were evaluated. The diabetic retinopathy group had longer diabetes duration, higher body mass indexes, and higher systolic blood pressure, as well as higher concentrations of fasting plasma glucose, blood urine nitrogen, and creatine. One SNP--rs3818569 of the RXR-gamma gene was found to be associated with increased risk for diabetic retinopathy in both allele and genotype frequencies (P = 0.0023 and 0.0057, respectively). Analysis with multivariate logistic regression revealed that the dominant RXR-gamma GG genotype is a risk factors for the development of diabetic retinopathy (odds ratio = 2.388; 95% confidence interval = 1.17-4.875). We conclude that the RXR-gamma rs3818569 SNP is associated with diabetic retinopathy development in the Taiwanese population.
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Affiliation(s)
- C-H Hsieh
- Department of Internal Medicine, Division of Endocrinology and Metabolism, National Defense Medical Center, Tri-Service General Hospital, Taipei, Taiwan.
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Xu G, Li LP, Liu F, Pei D, Wang S, Pang D, Borukhson L, Nandagudi A, Jawad A, Campbell RC, Scott DL, Kiely P, Gordon PA, Campbell RC, Rafferty G, Scott DL, Reilly C, Ward K, Gordon PA, Charles PJ, Paterson E, Ekholm L, Putova I, Danko K, Lundberg I, Vencovsky J, Chinoy H, Lundberg IE, Vencovsky J, Danko K, Vincze M, Lund Hetland M, Cooper RG, Ohtamaa M, Steen Krogh N. Muscle disorders: 67. Influence of Occupational Factors on Regional Musculoskeletal Disorders in Coal Miners. Rheumatology (Oxford) 2011. [DOI: 10.1093/rheumatology/ker041] [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: 11/13/2022] Open
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Xu G, Li LP, Liu F, Pei D, Sheng W, Pang D, Liu F, Li LP, Xu G, Wang S, Pang D, Camacho EM, Harrison MJ, Verstappen SM, Bunn DK, Symmons D. Epidemiology: 46. Low Back Pain and Occupational Risk Factors Among Coal Miners in China. Rheumatology (Oxford) 2011. [DOI: 10.1093/rheumatology/ker038] [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: 11/13/2022] Open
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Pottier N, Paugh SW, Ding C, Pei D, Yang W, Das S, Cook EH, Pui CH, Relling MV, Cheok MH, Evans WE. Promoter polymorphisms in the β-2 adrenergic receptor are associated with drug-induced gene expression changes and response in acute lymphoblastic leukemia. Clin Pharmacol Ther 2010; 88:854-61. [PMID: 20981007 DOI: 10.1038/clpt.2010.212] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/29/2023]
Abstract
We investigated whether genetic polymorphisms in the promoter region of the proapoptotic β-2 adrenergic receptor gene (ADRB2) influence treatment-induced changes in ADRB2 expression in leukemia cells and response to chemotherapy. The ADRB2 promoter region was genotyped in germline DNA from 369 children with acute lymphoblastic leukemia (ALL). For 95 of the patients, sufficient RNA was available before and after in vivo treatment to assess treatment-induced gene expression changes in ALL cells. After treatment, the median ADRB2 mRNA expression was ninefold lower in leukemia cells of patients who ultimately relapsed as compared with patients who remained in continuous complete remission (CCR). Polymorphisms in the ADRB2 promoter were significantly linked to methotrexate (MTX)-induced upregulation in ADRB2 gene expression in ALL cells. Moreover, the ADRB2 promoter haplotype was significantly related to early treatment response in 245 children with ALL who received uniform treatment. We conclude that germline polymorphisms in ADRB2 are linked to the antileukemic effects of ALL chemotherapy.
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Affiliation(s)
- N Pottier
- EA2679, Faculté de Médecine de Lille, Pôle Recherche, Lille, France
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Xu G, Li L, Liu F, Pei D. A cross-sectional study on lower back pain (LBP) among Chinese coal miners. Inj Prev 2010. [DOI: 10.1136/ip.2010.029215.154] [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: 11/04/2022]
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Blumenthal MN, Zhong W, Miller M, Wendt C, Connett JE, Pei D. Serum metalloproteinase leukolysin (MMP-25/MT-6): a potential metabolic marker for atopy-associated inflammation. Clin Exp Allergy 2010; 40:859-66. [PMID: 20337648 DOI: 10.1111/j.1365-2222.2010.03475.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)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
BACKGROUND Leukolysin is a novel matrix metalloproteinase (MMP-25/MT-6) released mainly by granulocytic cells, primarily neutrophils, which are implicated in chronic airways inflammation. OBJECTIVE To determine if leukolysin might be a serum marker for atopic asthma or chronic obstructive pulmonary disease (COPD). METHODS Three study populations were evaluated: (1) nuclear families with medical history of atopic asthma (N=337), (2) married-in individuals from an independent study of asthma genetics (N=122) and (3) randomly selected males with diagnosis of COPD (N=100). Each person was screened for asthma or COPD symptoms, respiratory function by standardized spirometry and serum total IgE and leukolysin and anti-IL1 levels by immunoassay. Study groups (1 and 2) were also screened by skin prick test using a battery of 14 common aeroallergens. Heritability estimates for leukolysin and total IgE were made by variance components analysis. RESULTS For those without asthma or who had asthma defined as having symptoms, a physician's diagnosis and bronchial hyper-reactivity as demonstrated by reversibility in response to albuteral and/or bronchial reactivity as measured by a methacholine challenge, serum leukolysin levels were found to be higher for those with any positive skin test result. This paralleled trends for serum total IgE. In the nuclear families and COPD patients, serum leukolysin levels were significantly elevated for those who also had elevated total IgE levels (log[IgE]>2.0) compared with those with lower IgE (log[IgE]<2.0). Serum IL-1 levels correlated with the leukolycin levels. In contrast to IgE, leukolysin showed no apparent inherited component. CONCLUSION Among individuals with history of chronic airways inflammation (asthma and COPD) serum leukolysin may be a metabolic marker associated with chronic atopy-associated respiratory inflammation. Common factors may stimulate increased production or release of both leukolysin from myeloid cells and IgE from lymphoid cells.
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Affiliation(s)
- M N Blumenthal
- Department of Medicine, The Asthma and Allergy Center, University of Minnesota Medical School, Minneapolis, MN 55455, USA.
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Pui CH, Pei D, Sandlund JT, Ribeiro RC, Rubnitz JE, Raimondi SC, Onciu M, Campana D, Kun LE, Jeha S, Cheng C, Howard SC, Metzger ML, Bhojwani D, Downing JR, Evans WE, Relling MV. Long-term results of St Jude Total Therapy Studies 11, 12, 13A, 13B, and 14 for childhood acute lymphoblastic leukemia. Leukemia 2010; 24:371-82. [PMID: 20010620 PMCID: PMC2820159 DOI: 10.1038/leu.2009.252] [Citation(s) in RCA: 224] [Impact Index Per Article: 16.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2009] [Accepted: 08/06/2009] [Indexed: 02/08/2023]
Abstract
We analyzed the long-term outcome of 1011 patients treated in five successive clinical trials (Total Therapy Studies 11, 12, 13A, 13B, and 14) between 1984 and 1999. The event-free survival improved significantly (P=0.003) from the first two trials conducted in the 1980s to the three more recent trials conducted in the 1990s. Approximately 75% of patients treated in the 1980s and 80% in the 1990s were cured. Early intensive triple intrathecal therapy, together with more effective systemic therapy, including consolidation and reinduction treatment (Studies 13A and 13B) as well as dexamethasone (Study 13B), resulted in a very low rate of isolated central nervous system (CNS) relapse rate (<2%), despite the reduced use of cranial irradiation. Factors consistently associated with treatment outcome were age, leukocyte count, immunophenotype, DNA index, and minimal residual disease level after remission induction treatment. Owing to concerns about therapy-related secondary myeloid leukemia and brain tumors, in our current trials we reserve the use of etoposide for patients with refractory or relapsed leukemia undergoing hematopoietic stem cell transplantation, and cranial irradiation for those with CNS relapse. The next main challenge is to further increase cure rates while improving quality of life for all patients.
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Affiliation(s)
- C H Pui
- Department of Oncology, St Jude Children's Research Hospital, Memphis, TN 38105, USA.
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Wu LSH, Hsieh CH, Pei D, Hung YJ, Kuo SW, Lin E. Association and interaction analyses of genetic variants in ADIPOQ, ENPP1, GHSR, PPAR and TCF7L2 genes for diabetic nephropathy in a Taiwanese population with type 2 diabetes. Nephrol Dial Transplant 2009; 24:3360-6. [DOI: 10.1093/ndt/gfp271] [Citation(s) in RCA: 60] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/18/2022] Open
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Jeha S, Pei D, Raimondi SC, Onciu M, Campana D, Cheng C, Sandlund JT, Ribeiro RC, Rubnitz JE, Howard SC, Downing JR, Evans WE, Relling MV, Pui CH. Increased risk for CNS relapse in pre-B cell leukemia with the t(1;19)/TCF3-PBX1. Leukemia 2009; 23:1406-9. [PMID: 19282835 DOI: 10.1038/leu.2009.42] [Citation(s) in RCA: 91] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
To evaluate the impact of contemporary therapy on the clinical outcome of children with pre-B acute lymphoblastic leukemia (ALL) and the t(1;19)/TCF3/PBX1, we analyzed 735 patients with B-cell precursor ALL treated in four successive protocols at St Jude Children's Research Hospital. The 41 patients with the t(1;19) had a comparable event-free survival to that of the 694 patients with other B-cell precursor ALL (P=0.63; 84.2+/-7.1% (s.e.) vs 84.0+/-1.8% at 5 years). However, patients with the t(1;19) had a lower cumulative incidence of any hematological relapse (P=0.06; 0 vs 8.3+/-1.2% at 5 years) but a significantly higher incidence of central nervous system (CNS) relapse (P<0.001; 9.0+/-5.1% vs 1.0+/-0.4% at 5 years). In a multivariate analysis, the t(1;19) was an independent risk factor for isolated CNS relapse. These data suggest that with contemporary treatment, patients with the t(1;19) and TCF3/PBX1 fusion have a favorable overall outcome but increased risk of CNS relapse.
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Affiliation(s)
- S Jeha
- Department of Oncology, St Jude Children's Research Hospital, Memphis, TN 38105, USA
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Stocco G, Cheok MH, Crews KR, Dervieux T, French D, Pei D, Yang W, Cheng C, Pui CH, Relling MV, Evans WE. Genetic polymorphism of inosine triphosphate pyrophosphatase is a determinant of mercaptopurine metabolism and toxicity during treatment for acute lymphoblastic leukemia. Clin Pharmacol Ther 2008; 85:164-72. [PMID: 18685564 DOI: 10.1038/clpt.2008.154] [Citation(s) in RCA: 166] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/14/2022]
Abstract
The influence of genetic polymorphism in inosine triphosphate pyrophosphatase (ITPA) on thiopurine-induced adverse events has not been investigated in the context of combination chemotherapy for acute lymphoblastic leukemia (ALL). This study investigated the effects of a common ITPA variant allele (rs41320251) on mercaptopurine metabolism and toxicity during treatment of children with ALL. Significantly higher concentrations of methyl mercaptopurine nucleotides were found in patients with the nonfunctional ITPA allele. Moreover, there was a significantly higher probability of severe febrile neutropenia in patients with a variant ITPA allele among patients whose dose of mercaptopurine had been adjusted for TPMT genotype. In a cohort of patients whose mercaptopurine dose was not adjusted for TPMT phenotype, the TPMT genotype had a greater effect than the ITPA genotype. In conclusion, genetic polymorphism of ITPA is a significant determinant of mercaptopurine metabolism and of severe febrile neutropenia, after combination chemotherapy for ALL in which mercaptopurine doses are individualized on the basis of TPMT genotype.
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Affiliation(s)
- G Stocco
- Department of Pharmaceutical Sciences, St Jude Children's Research Hospital, Memphis, Tennessee, USA
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Yang J, Bogni A, Cheng C, Bleibel WK, Cai X, Fan Y, Yang W, Rocha JCC, Pei D, Liu W, Dolan ME, Pui CH, Relling MV. Etoposide sensitivity does not predict MLL rearrangements or risk of therapy-related acute myeloid leukemia. Clin Pharmacol Ther 2008; 84:691-7. [PMID: 18509329 DOI: 10.1038/clpt.2008.86] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
Abstract
Therapy-related acute myeloid leukemia (t-AML) caused by MLL rearrangements (rMLL) can arise from topoisomerase II agents. However, whether rMLL-related leukemogenesis is inextricably linked to drug cytotoxicity remains controversial. We therefore compared (i) rMLL in children with acute lymphoblastic leukemia (ALL) who developed t-AML and those who did not, (ii) epipodophyllotoxin toxicity in patients with t-AML and in controls, and (iii) rMLL in cells sensitive to etoposide and in those resistant to etoposide. In children with ALL, rMLL appeared to be more frequent in children who developed t-AML than in those who did not (seven pairs, P = 0.04), although independent of the cumulative etoposide dose (P = 0.5). Similarly, the frequency of epipodophyllotoxin-related toxicities did not differ between patients with t-AML and controls (26 pairs, P > 0.17). Moreover, in 25 cell lines, etoposide-induced MLL fusions did not differ in sensitive vs. resistant lines at equitoxic concentrations (P = 0.65). Together, these results indicate that epipodophyllotoxin-mediated leukemogenesis is not directly linked to drug cytotoxicity.
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Affiliation(s)
- J Yang
- Department of Pharmaceutical Sciences, St. Jude Children's Research Hospital, Memphis, Tennessee, USA
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Kuo CS, Pei D, Yao CY, Hsieh MC, Kuo SW. Effect of orlistat in overweight poorly controlled Chinese female type 2 diabetic patients: a randomised, double-blind, placebo-controlled study. Int J Clin Pract 2006; 60:906-10. [PMID: 16893433 DOI: 10.1111/j.1742-1241.2006.01052.x] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/23/2023] Open
Abstract
The aim of the study was to assess the adjunctive effects of orlistat on weight loss and the influence of weight reduction on glycaemic control in overweight Chinese female type 2 diabetic patients. A randomised, placebo-controlled, double-blind, 12-week study was conducted. Chinese female type 2 diabetic patients, overweight (body mass index > 25 kg/m(2)), poorly controlled glucose levels [glycosylated haemoglobin (HbA1c) > 8%], were randomly assigned to two groups. In addition to their oral hypoglycaemic agents (maximal doses of sulphonylureas and metformin), one group (n = 30) received a placebo and the other (n = 30) received orlistat 120 mg t.i.d. for 12 weeks. Comparing the changes that occurred after 12 weeks in the orlistat and placebo groups, the former showed significantly greater reduction in bodyweight (2.5 vs. 0.4 kg; p < 0.05), fasting plasma insulin level (p < 0.01), 2-h postprandial blood glucose after glucose challenge (p < 0.01), insulin resistance (p < 0.01), HbA1c (p < 0.05), total cholesterol and triglyceride levels (p < 0.05, respectively). No significant differences were found between treatment groups in blood pressure and heart rate. The addition of orlistat to oral hypoglycaemic agents resulted in a significant weight reduction and improvement of metabolic control in overweight Chinese female type 2 diabetic patients.
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Affiliation(s)
- C-S Kuo
- Division of Endocrinology and Metabolism, Department of Medicine, Buddhist Dalin Tzu-Chi General Hospital, Dalin, Chia-Yi, Buddhist Tzu-Chi University School of Medicine, Hualien, National Yang-Ming University School of Medicine, Taipei, Taiwan
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45
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Raasch J, Liebeler C, Wendt C, Sweet J, Jarjour N, DeGrauw R, Pei D, Blumenthal M. Comparison of Leukolysin/MT6-MMP in Bronchoalveolar Lavage Fluid from Lung Transplant Patients and Asthmatics. J Allergy Clin Immunol 2006. [DOI: 10.1016/j.jaci.2005.12.256] [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: 10/24/2022]
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46
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Tsai CC, Pei D, Hung YJ, Wang TF, Tsai WC, Yao CY, Hsieh MC, Kuo SW. The effect of thyroxine-suppressive therapy in patients with solitary non-toxic thyroid nodules -- a randomised, double-blind, placebo-controlled study. Int J Clin Pract 2006; 60:23-6. [PMID: 16409424 DOI: 10.1111/j.1368-5031.2006.00632.x] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
The efficacy of thyroxine (T(4)) for solitary non-toxic thyroid nodule remains uncertain. In this study, 60 patients with solitary non-toxic thyroid nodule were divided randomly into two groups. Group I (n = 30) received thyroxine 100 microg/day for 6 months and group II (n = 30) received placebo. The volume of the thyroid nodules in 11 patients decreased more than 50% after thyroxine therapy (36.7%, responders). In these 11 patients, the mean serum thyroglobulin level decreased significantly (340 +/- 115 to 162 +/- 86 microg/l, p < 0.01). Compared with the non-responders (n = 19, 63.3%), the serum thyroglobulin level before treatment was significantly higher (340 +/- 115 vs. 220 +/- 102 microg/l, p < 0.05). Thyroxine-suppressive therapy is proved as a useful tool in reducing nodule size in some patients with solitary thyroid nodules. The patients with a higher serum thyroglobulin level generally respond better to thyroxine-suppressive therapy.
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Affiliation(s)
- C-C Tsai
- Division of Endocrinology and Metabolism, Department of Internal Medicine, Buddhist Tzu-Chi General Hospital, Tzu-Chi University, Hualien, Taiwan, ROC
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47
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Pei D, Kuo SW, Wu DA, Lin TY, Hseih MC, Lee CH, Hsu WL, Chen SP, Sheu WHH, Li JC. The relationships between insulin resistance and components of metabolic syndrome in Taiwanese Asians. Int J Clin Pract 2005; 59:1408-16. [PMID: 16351672 DOI: 10.1111/j.1368-5031.2005.00661.x] [Citation(s) in RCA: 13] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
Metabolic syndrome (MetS) is a complicated clinicopathological entity with clustering of cardiovascular and metabolic risk factors, which includes central obesity, hypertension, dyslipidemia and glucose intolerance. There were many studies investigating a wide variety of clinical and pathophysiological aspects of this syndrome. However, the cutoffs of the components of MetS are not yet being evaluated by measured the insulin resistance (IR) directly. In this study, we enrolled 564 (male/female: 250/314) middle-aged healthy subjects. Each of the male and the female group was further divided into four subgroups (group 1 to group 4). Group 4 had the top 25 percentile of most severe IR determined by insulin suppression test. We then obtain the mean values of each component of the MetS in group 4 and compared them with the definitions of World Health Organization, National Cholesterol Education Program Adult Treatment Panel III, European Study Group of Insulin Resistance and International Diabetes Federation. The means of the blood pressure (BP) (male, 125/81; female, 125/80 mmHg) and the triglyceride (TG) (male, 1.6; female, 1.4 mmol/l) in group 4 were lower, and the fasting plasma glucose (6.2 mmol/l) was higher than the cutoffs of the other four sets of the criteria. The means of the high-density lipoprotein cholesterol (male, 0.9; female, 1.03 mmol/l) and the body mass index (male, 26.9; female 26.1 kg/m(2)) in group 4 were consistent with the cutoffs of other four groups and also the Taiwan Health Department criteria. In conclusion, we suggest to lower the cutoffs of the BP from 140/90 to 125/80 mmHg, TG from 1.7 to 1.6 mmol/l for males and 1.4 mmol/l for females for MetS definition, at least in Taiwan. This may help to early detect subjects under high risk of future coronary heart disease and diabetes. Still, these newly proposed cutoffs need larger-scale epidemiological studies to confirm.
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Affiliation(s)
- D Pei
- Department of Internal Medicine, Division of Endocrinology and Metabolism, Buddhist Tzu Chi General Hospital and College of Medicine, Tzu Chi University, Taiwan
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Hung YJ, Chen YC, Pei D, Kuo SW, Hsieh CH, Wu LY, He CT, Lee CH, Fan SC, Sheu WHH. Sibutramine improves insulin sensitivity without alteration of serum adiponectin in obese subjects with Type 2 diabetes. Diabet Med 2005; 22:1024-30. [PMID: 16026368 DOI: 10.1111/j.1464-5491.2005.01569.x] [Citation(s) in RCA: 25] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
AIM To evaluate the effect of sibutramine on weight loss, insulin sensitivity and serum adiponectin levels in obese patients with Type 2 diabetes. METHODS This study is a randomized, double-blind, placebo-controlled parallel comparison study of sibutramine 15 mg/day and placebo. Forty-eight eligible obese patients with Type 2 diabetes (age between 30 and 75 years with body mass index > or = 27 kg/m(2)) were randomly assigned to receive either placebo (n = 24) or sibutramine (15 mg/day) (n = 24) for 6 months. Fifteen subjects in each group underwent meal tests and modified insulin suppression tests before and after 6 months' treatment. RESULTS After 6 months of sibutramine treatment statistically significant changes from baseline were observed for body weight (85.4 +/- 2.5 vs. 82.9 +/- 2.4 kg, P < 0.005) and body mass index (32.0 +/- 0.7 vs. 31.4 +/- 0.6 kg/m(2), P < 0.05) without a significant alteration of waist-hip ratio (W/H), blood pressure, heart rate, glycaemic parameters or lipid profiles. The steady-state plasma glucose (SSPG) level during the modified insulin suppression test was significantly reduced in the sibutramine group (17.33 +/- 2.92 vs. 14.29 +/- 4.19 mmol/l, P < 0.05) despite similar steady-state plasma insulin (SSPI) concentrations. In addition, serum adiponectin and C-reactive protein (CRP) levels remained unchanged, although modest weight reduction was achieved after sibutramine treatment. There were also no significant correlations between changes in serum adiponectin and reduction of SSPG or body weight. Daily ambient plasma insulin and glucose concentrations in response to a test meal were not significantly different in subjects receiving sibutramine treatment. CONCLUSIONS We conclude that treatment with sibutramine 15 mg once daily effectively reduces weight and enhances insulin sensitivity without alteration of serum adiponectin levels in obese patients with Type 2 diabetes.
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Affiliation(s)
- Y-J Hung
- Division of Endocrinology and Metabolism, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan.
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Wang TF, Pei D, Li JC, Tsai WC, Tsai CC, Yao CY, Chang ET, Hsieh MC, Su KY, Kuo SW. Effects of sibutramine in overweight, poorly controlled Chinese female type 2 diabetic patients: a randomised, double-blind, placebo-controlled study. Int J Clin Pract 2005; 59:746-50. [PMID: 15963197 DOI: 10.1111/j.1368-5031.2005.00568.x] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022] Open
Abstract
To assess the efficacy of sibutramine 15 mg once daily as weight reduction in overweight and obese (body mass index > 25 kg/m2) Chinese female type 2 diabetic patients and to evaluate the influence of weight loss on diabetic control, a randomised, double-blind, placebo-control, 12-week study was conducted. Chinese female type 2 diabetic patients, poorly controlled glucose levels and HbA(1C) > 8% were randomly assigned to two groups. In addition to their hypoglycaemic agents (maximal doses of sulphonylureas and metformin), one group (n = 30) received a sibutramine 15 mg once daily for 12 weeks, and the other (n = 30) received placebo for the same period. Comparing the changes that occurred after 12 weeks in the sibutramine and placebo groups, the former showed significantly greater reduction in body weight (2.5 vs. 0.1 kg, p < 0.05), fasting plasma insulin level (28.8 vs. 2.4 pmol/l, p < 0.01), 2-h postprandial blood glucose after standard test meal (3.2 vs. 1.1 mmol/l, p < 0.01), insulin resistance (5.1 vs. 0.2, p < 0.01), HbA1C (1.7% vs. 0.2%, p < 0.05), triglyceride (0.43 vs. 0.12 mmol/l, p < 0.05) and total cholesterol (0.52 vs. 0.08 mmol/l, p < 0.05). No significant differences were found between treatment groups in blood pressure and heart rate. The addition of sibutramine to diet and oral hypoglycaemic therapy resulted in significant weight loss and improvement in metabolic parameters in the treatment group. Sibutramine should be considered for use alongside diet and oral hypoglycaemic therapy in Chinese overweight and obese women with poorly controlled type 2 diabetes.
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Affiliation(s)
- T-F Wang
- Division of Endocrinology and Metabolism, Buddhist Tzu-Chi General Hospital and Tzu-Chi University, Hualien, Taiwan, ROC
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Abstract
We sought to clarify whether impaired fasting glucose (IFG), impaired glucose tolerance (IGT) or both (IFG/IGT) represent the most severe impairment in insulin resistance (IR) and insulin secretion. Among the 159 Chinese subjects, 21 were diagnosed as having IFG, 103 as having IGT and 35 as having both. IR and beta-cell function were assessed using homeostatic model assessment (HOMA) and an insulin-suppression test (IST). No differences were evident between the groups in blood pressure, body mass index, plasma insulin fasting levels and lipid profiles. However, plasma 2-h insulin levels were higher in the IGT and IFG/IGT groups. Beta-cell functions were not different between these groups. But, the result of glucose tolerance was different, in which the IFG/IGT and IFG groups displayed higher insulin sensitivity than IGT via HOMA instead of no difference via IST in the three patient groups.
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Affiliation(s)
- C-H Hsieh
- Division of Endocrinology and Metabolism,Department of Internal Medicine, Tri-Service General Hospital, Taipei, Taiwan, R.O.C
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