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Guo T, Wang J, Pang M, Liu W, Zhang X, Fan A, Liu H, Liu Q, Wei T, Li C, Zhao X, Lu Y. Reprogramming and multi-lineage transdifferentiation attenuate the tumorigenicity of colorectal cancer cells. J Biol Chem 2024; 300:105534. [PMID: 38072050 PMCID: PMC10801221 DOI: 10.1016/j.jbc.2023.105534] [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: 05/29/2023] [Revised: 11/18/2023] [Accepted: 11/27/2023] [Indexed: 01/02/2024] Open
Abstract
Significant advances have been made in reprogramming various somatic cells into induced pluripotent stem cells (iPSCs) and in multi-lineage differentiation (transdifferentiation) into different tissues. These manipulable transdifferentiating techniques may be applied in cancer therapy. Limited works have been reported that cancer cell malignancy can be switched to benign phenotypes through reprogramming techniques. Here, we reported that two colorectal cancer (CRC) cell lines (DLD1, HT29) could be reprogrammed into iPSCs (D-iPSCs, H-iPSCs). D- and H-iPSCs showed reduced tumorigenesis. Furthermore, we successfully induced D- and H-iPSCs differentiation into terminally differentiated cell types such as cardiomyocyte, neuron, and adipocyte-like cells. Impressively, the differentiated cells exhibited further attenuated tumorigenesis in vitro and in vivo. RNA-Seq further indicated that epigenetic changes occurred after reprogramming and transdifferentiation that caused reduced tumorigenicity. Overall, our study indicated that CRC cells can be reprogrammed and further differentiated into terminally differentiated lineages with attenuation of their malignancy in vitro and in vivo. The current work sheds light on a potential multi-lineage differentiation therapeutic strategy for colorectal cancer.
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Affiliation(s)
- Tongtong Guo
- State Key Laboratory of Cancer Biology and National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Juan Wang
- State Key Laboratory of Cancer Biology and National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Maogui Pang
- State Key Laboratory of Cancer Biology and National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, Shaanxi, China; Department of Gastroenterology, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Wanning Liu
- State Key Laboratory of Cancer Biology and National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Xiaohui Zhang
- Department of Gastroenterology, Tangdu Hospital, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Ahui Fan
- State Key Laboratory of Cancer Biology and National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, Shaanxi, China
| | - Hengtao Liu
- Jiaen Genetics Laboratory, Beijing Jiaen Hospital, Beijing, China
| | - Qianqian Liu
- Jiaen Genetics Laboratory, Beijing Jiaen Hospital, Beijing, China
| | - Tianying Wei
- Jiaen Genetics Laboratory, Beijing Jiaen Hospital, Beijing, China
| | - Cunxi Li
- Jiaen Genetics Laboratory, Beijing Jiaen Hospital, Beijing, China; Cytogenetics Laboratory, Beijing Institute of Human Genetics and Reproduction Medicine, Beijing, China.
| | - Xiaodi Zhao
- State Key Laboratory of Cancer Biology and National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, Shaanxi, China.
| | - Yuanyuan Lu
- State Key Laboratory of Cancer Biology and National Clinical Research Center for Digestive Diseases, Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, Shaanxi, China.
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2
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Li D, Wang X, Miao H, Liu H, Pang M, Guo H, Ge M, Glass SE, Emmrich S, Ji S, Zhou Y, Ye X, Mao H, Wang J, Liu Q, Kim T, Klusmann JH, Li C, Liu Z, Jin H, Nie Y, Wu K, Fan D, Song X, Wang X, Li L, Lu Y, Zhao X. The lncRNA MIR99AHG directs alternative splicing of SMARCA1 by PTBP1 to enable invadopodia formation in colorectal cancer cells. Sci Signal 2023; 16:eadh4210. [PMID: 37725664 DOI: 10.1126/scisignal.adh4210] [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] [Subscribe] [Scholar Register] [Received: 03/02/2023] [Accepted: 08/31/2023] [Indexed: 09/21/2023]
Abstract
Alternative splicing regulates gene expression and functional diversity and is often dysregulated in human cancers. Here, we discovered that the long noncoding RNA (lncRNA) MIR99AHG regulated alternative splicing to alter the activity of a chromatin remodeler and promote metastatic behaviors in colorectal cancer (CRC). MIR99AHG was abundant in invasive CRC cells and metastatic tumors from patients and promoted motility and invasion in cultured CRC cells. MIR99AHG bound to and stabilized the RNA splicing factor PTBP1, and this complex increased cassette exon inclusion in the mRNA encoding the chromatin remodeling gene SMARCA1. Specifically, MIR99AHG altered the nature of PTBP1 binding to the splice sites on intron 12 of SMARCA1 pre-mRNA, thereby triggering a splicing switch from skipping to including exon 13 to produce the long isoform, SMARCA1-L. SMARCA1, but not SMARCA1-L, suppressed invadopodia formation, cell migration, and invasion. Analysis of CRC samples revealed that the abundance of MIR99AHG transcript positively correlated with that of SMARCA1-L mRNA and PTBP1 protein and with poor prognosis in patients with CRC. Furthermore, TGF-β1 secretion from cancer-associated fibroblasts increased MIR99AHG expression in CRC cells. Our findings identify an lncRNA that is induced by cues from the tumor microenvironment and that interacts with PTBP1 to regulate alternative splicing, potentially providing a therapeutic target and predictive biomarker for metastatic CRC.
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Affiliation(s)
- Danxiu Li
- Department of Gastroenterology, Tangdu Hospital, Xijing Hospital of Digestive Diseases, State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers, National Clinical Research Center for Digestive Diseases, Fourth Military Medical University, Xi'an, Shaanxi 710032, China
| | - Xin Wang
- Department of Gastroenterology, Tangdu Hospital, Xijing Hospital of Digestive Diseases, State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers, National Clinical Research Center for Digestive Diseases, Fourth Military Medical University, Xi'an, Shaanxi 710032, China
| | - Hui Miao
- Center for Functional Genomics and Bioinformatics, Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan 610065, China
| | - Hao Liu
- Department of Gastroenterology, Tangdu Hospital, Xijing Hospital of Digestive Diseases, State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers, National Clinical Research Center for Digestive Diseases, Fourth Military Medical University, Xi'an, Shaanxi 710032, China
| | - Maogui Pang
- Department of Gastroenterology, Tangdu Hospital, Xijing Hospital of Digestive Diseases, State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers, National Clinical Research Center for Digestive Diseases, Fourth Military Medical University, Xi'an, Shaanxi 710032, China
| | - Hao Guo
- State Key Laboratory of Translational Medicine and Innovative Drug Development, Jiangsu Simcere Diagnostics Co. Ltd., Nanjing, Jiangsu 210042, China
| | - Minghui Ge
- State Key Laboratory of Translational Medicine and Innovative Drug Development, Jiangsu Simcere Diagnostics Co. Ltd., Nanjing, Jiangsu 210042, China
| | - Sarah E Glass
- Department of Cell and Developmental Biology, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Stephan Emmrich
- Department of Biology, University of Rochester, Rochester, NY 14627, USA
| | - Songtao Ji
- Department of Gastroenterology, Tangdu Hospital, Xijing Hospital of Digestive Diseases, State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers, National Clinical Research Center for Digestive Diseases, Fourth Military Medical University, Xi'an, Shaanxi 710032, China
| | - Yun Zhou
- Department of Gastroenterology, Tangdu Hospital, Xijing Hospital of Digestive Diseases, State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers, National Clinical Research Center for Digestive Diseases, Fourth Military Medical University, Xi'an, Shaanxi 710032, China
| | - Xiaoni Ye
- Department of Gastroenterology, Tangdu Hospital, Xijing Hospital of Digestive Diseases, State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers, National Clinical Research Center for Digestive Diseases, Fourth Military Medical University, Xi'an, Shaanxi 710032, China
| | - Huajie Mao
- Department of Gastroenterology, Tangdu Hospital, Xijing Hospital of Digestive Diseases, State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers, National Clinical Research Center for Digestive Diseases, Fourth Military Medical University, Xi'an, Shaanxi 710032, China
| | - Jing Wang
- Department of Biomedical Informatics and Center for Quantitative Sciences, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Qi Liu
- Department of Biomedical Informatics and Center for Quantitative Sciences, Vanderbilt University Medical Center, Nashville, TN 37232, USA
| | - Taewan Kim
- Department of Anatomy, Histology & Developmental Biology, Base for International Science and Technology Cooperation, Carson Cancer Stem Cell Vaccines R&D Center, International Cancer Center, Shenzhen University, Shenzhen, Guangdong 518055, China
| | - Jan-Henning Klusmann
- Pediatric Hematology and Oncology, Department of Pediatrics, Goethe University Frankfurt, Frankfurt (Main) 60590, Germany
| | - Cunxi Li
- Jiaen Genetics Laboratory, Beijing Jiaen Hospital, Beijing 100191, China
| | - Zhenxiong Liu
- Department of Gastroenterology, Tangdu Hospital, Xijing Hospital of Digestive Diseases, State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers, National Clinical Research Center for Digestive Diseases, Fourth Military Medical University, Xi'an, Shaanxi 710032, China
| | - Haifeng Jin
- Center for Functional Genomics and Bioinformatics, Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan 610065, China
| | - Yongzhan Nie
- Department of Gastroenterology, Tangdu Hospital, Xijing Hospital of Digestive Diseases, State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers, National Clinical Research Center for Digestive Diseases, Fourth Military Medical University, Xi'an, Shaanxi 710032, China
| | - Kaichun Wu
- Department of Gastroenterology, Tangdu Hospital, Xijing Hospital of Digestive Diseases, State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers, National Clinical Research Center for Digestive Diseases, Fourth Military Medical University, Xi'an, Shaanxi 710032, China
| | - Daiming Fan
- Department of Gastroenterology, Tangdu Hospital, Xijing Hospital of Digestive Diseases, State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers, National Clinical Research Center for Digestive Diseases, Fourth Military Medical University, Xi'an, Shaanxi 710032, China
| | - Xu Song
- Center for Functional Genomics and Bioinformatics, Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan 610065, China
| | - Xin Wang
- Department of Gastroenterology, Tangdu Hospital, Xijing Hospital of Digestive Diseases, State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers, National Clinical Research Center for Digestive Diseases, Fourth Military Medical University, Xi'an, Shaanxi 710032, China
| | - Ling Li
- Center for Functional Genomics and Bioinformatics, Key Laboratory of Bio-Resource and Eco-Environment of Ministry of Education, College of Life Sciences, Sichuan University, Chengdu, Sichuan 610065, China
| | - Yuanyuan Lu
- Department of Gastroenterology, Tangdu Hospital, Xijing Hospital of Digestive Diseases, State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers, National Clinical Research Center for Digestive Diseases, Fourth Military Medical University, Xi'an, Shaanxi 710032, China
| | - Xiaodi Zhao
- Department of Gastroenterology, Tangdu Hospital, Xijing Hospital of Digestive Diseases, State Key Laboratory of Holistic Integrative Management of Gastrointestinal Cancers, National Clinical Research Center for Digestive Diseases, Fourth Military Medical University, Xi'an, Shaanxi 710032, China
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Yang XT, Luo ZZ, Huang JP, Sun WY, Zheng Y, Yin RC, Dong H, Yu HH, Pang M, Jiang X. Enhancement of blue and ultraviolet components in PCF-based supercontinuum generation through inter-modal dispersive-wave radiation. Opt Lett 2023; 48:3255-3258. [PMID: 37319075 DOI: 10.1364/ol.488134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/21/2023] [Accepted: 05/15/2023] [Indexed: 06/17/2023]
Abstract
Broadband supercontinuum (SC) light sources generated through nonlinear effects in solid-core photonic crystal fibers (PCFs) have been widely used in spectroscopy, metrology, and microscopy, leading to great application successes. The short-wavelength extension of such SC sources, a longstanding challenge, has been the subject of intensive study over the past two decades. However, the exact mechanism of blue and ultraviolet light generation, especially for some resonance spectral peaks in the short-wavelength regime, is not yet fully understood. Here, we demonstrate that the effect of inter-modal dispersive-wave radiation, which results from phase matching between pump pulses at the fundamental optical mode and packets of linear waves at some higher-order modes (HOMs) propagating in the PCF core, might be one of the critical mechanisms that can result in some resonance spectral components with wavelengths much shorter than that of the pump light. We observed in an experiment that several spectral peaks resided in the blue and ultraviolet regimes of the SC spectrum, whose central wavelengths can be tuned by varying the PCF-core diameter. These experimental results can be interpreted well using the inter-modal phase-matching theory, providing some useful insights into the SC generation process.
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4
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Liang J, Sun L, Li Y, Liu W, Li D, Chen P, Wang X, Hui J, Zhou J, Liu H, Cao T, Pang M, Guo M, Wang X, Zhao X, Lu Y. Wnt Signaling Modulator DKK4 Inhibits Colorectal Cancer Metastasis through an AKT/Wnt/β-catenin Negative Feedback Pathway. J Biol Chem 2022; 298:102545. [PMID: 36181792 DOI: 10.1016/j.jbc.2022.102545] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 09/06/2022] [Accepted: 09/07/2022] [Indexed: 12/01/2022] Open
Abstract
Aberrant activation of the Wnt/β-catenin signaling pathway is implicated in most malignant cancers, especially in the initiation and progression of colorectal cancer (CRC). DKK4 is a classical inhibitory molecule of the Wnt/β-catenin pathway, but its role in CRC is ambiguous, and the molecular mechanism remains unclear. Here, we determined DKK4 expression was significantly upregulated in 23 CRC cell lines and 229 CRC tissues when analyzed by quantitative PCR and immunohistochemistry, respectively. Our analysis of tissue samples indicated the survival time of CRC patients with high DKK4 expression was longer than that of patients with medium-low DKK4 expression. We examined the effects of DKK4 on cell proliferation and metastasis by cell counting kit-8 assays, Transwell assays, and subcutaneous and metastatic mouse tumor models, and we discovered that DKK4 silencing promoted the metastasis of CRC cells both in vitro and in vivo. Our RNA-seq analysis revealed that AKT2, FZD6, and JUN, which play important roles in AKT and Wnt signaling, were significantly increased after DKK4 knockdown. DKK4 represses Wnt/β-catenin signaling by repressing FZD6 and AKT2/s552 β-catenin in CRC. Further experiments revealed recombinant Wnt3a and LiCl could induce DKK4 expression. Moreover, our bioinformatics analysis and luciferase reporter assays identified posttranscriptional regulators of DKK4 in CRC cells. In summary, DKK4 is elevated in CRC and inhibits cell metastasis by a novel negative feedback mechanism of the Wnt3a/DKK4/AKT/s552 β-catenin regulatory axis to restrict overactivation of Wnt activity in CRC. Therefore, DKK4 restoration may be applied as a potential CRC therapeutic strategy.
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Affiliation(s)
- Junrong Liang
- Department of Gastroenterology, Tangdu Hospital, Fourth Military Medical University, Xi'an, China; State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, China
| | - Lina Sun
- The Affiliated Children's Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Yujun Li
- Department of Endocrinology, The Second Affiliated Hospital of Xi'an Jiaotong University, Xi'an, China
| | - Wanning Liu
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, China; College of Life Sciences, Northwest University, Xi'an, China
| | - Danxiu Li
- Department of Gastroenterology, Tangdu Hospital, Fourth Military Medical University, Xi'an, China; State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, China
| | - Ping Chen
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, China; Department of Gastroenterology, Xingping People's Hospital, Xianyang, China
| | - Xin Wang
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, China; Department of Gastroenterology, General Hospital of Northern Theater Command, Shenyang, China
| | - Juan Hui
- Department of Gastroenterology, Tangdu Hospital, Fourth Military Medical University, Xi'an, China; State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, China
| | - Jinchi Zhou
- Department of Gastroenterology, Tangdu Hospital, Fourth Military Medical University, Xi'an, China; State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, China
| | - Hao Liu
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, China
| | - Tianyu Cao
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, China
| | - Maogui Pang
- Department of Gastroenterology, Tangdu Hospital, Fourth Military Medical University, Xi'an, China; State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, China
| | - Meng Guo
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, China
| | - Xin Wang
- Department of Gastroenterology, Tangdu Hospital, Fourth Military Medical University, Xi'an, China; State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, China.
| | - Xiaodi Zhao
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, China.
| | - Yuanyuan Lu
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, Fourth Military Medical University, Xi'an, China.
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5
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Wu ZY, Gao WJ, Cao J, Lyu CQ, Yu SF, Wang T, Huang DJY, Sun CX, Liao YJ, Pang ZC, Pang M, Yu H, Wang XP, Wu Z, Dong F, Wu GJ, Jiang XJ, Wang Y, Liu J, Deng L, Lu LM, Li L. [A descriptive analysis of tea consumption in adult twins in China]. Zhonghua Liu Xing Bing Xue Za Zhi 2022; 43:1241-1248. [PMID: 35981986 DOI: 10.3760/cma.j.cn112338-20211210-00964] [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: 06/15/2023]
Abstract
Objective: To describe the distribution characteristics of tea consumption in adult twins recruited in the Chinese National Twin Registry (CNTR) and provide clues to genetic and environmental influences on tea consumption. Methods: Enrolled in CNTR during 2010-2018, 25 264 twin pairs aged 18 years and above were included in subsequent analysis. Random effect models were used to estimate tea consumption in the population and regional distribution characteristics. The concordance rate of the behavior and difference in consumption volume of tea within pairs were also described. Results: The mean age of all subjects was (35.38±12.45) years old. The weekly tea consumers accounted for 17.0%, with an average tea consumption of (3.36±2.44) cups per day. The proportion of weekly tea consumers was higher among males, 50-59 years old, southern, urban, educated, and the first-born in the twin pair (P<0.05), and lower among unmarried individuals (P<0.001). Within-pair analysis showed that the concordance rate of tea consumption of monozygotic (MZ) twins was higher than that of dizygotic (DZ) twins and the overall heritability of tea consumption was 13.45% (11.38%-15.51%). Stratified by the characteristics mentioned above, only in males, the concordance rate of MZ showed a tendency to be greater than that of DZ (all P<0.05). The differences in consumption volume of tea within twin pairs were minor in MZ among males (P<0.05), while the differences were not significant in female twins. Conclusion: There were discrepancies in the distribution of tea consumption among twins of different demographic and regional characteristics. Tea consumption was mainly influenced by environmental factors and slightly influenced by genetic factors. The size of genetic factors varied with gender, age, and region, and gender was a potential modified factor.
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Affiliation(s)
- Z Y Wu
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing 100191, China
| | - W J Gao
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing 100191, China
| | - J Cao
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing 100191, China
| | - C Q Lyu
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing 100191, China
| | - S F Yu
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing 100191, China
| | - T Wang
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing 100191, China
| | - D J Y Huang
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing 100191, China
| | - C X Sun
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing 100191, China
| | - Y J Liao
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing 100191, China
| | - Z C Pang
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing 100191, China
| | - M Pang
- Qingdao Center for Disease Control and Prevention, Qingdao 266033, China
| | - H Yu
- Zhejiang Center for Disease Control and Prevention, Hangzhou 310051, China
| | - X P Wang
- Jiangsu Center for Disease Control and Prevention, Nanjing 210009, China
| | - Z Wu
- Sichuan Center for Disease Control and Prevention, Chengdu 610041, China
| | - F Dong
- Beijing Center for Disease Prevention and Control, Beijing 100013, China
| | - G J Wu
- Shanghai Center for Disease Control and Prevention, Shanghai 200336, China
| | - X J Jiang
- Tianjin Center for Disease Control and Prevention, Tianjin 300011, China
| | - Y Wang
- Qinghai Center for Disease Control and Prevention, Xining 810007, China
| | - J Liu
- Heilongjiang Center for Disease Control and Prevention, Harbin 150090, China
| | - L Deng
- Handan Center for Disease Control and Prevention, Handan 056001, China
| | - L M Lu
- Yunnan Center for Disease Control and Prevention, Kunming 650034, China
| | - Liming Li
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University Health Science Center, Beijing 100191, China
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6
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Ke J, Gao WJ, Lyu CQ, Yu SF, Wang T, Huang DJY, Sun CX, Liao YJ, Pang ZC, Pang M, Yu H, Wang XP, Wu Z, Dong F, Wu GJ, Jiang XJ, Wang Y, Liu J, Deng L, Lu WH, Cao LM, Li L. [A descriptive analysis on coronary heart disease in adult twins in China]. Zhonghua Liu Xing Bing Xue Za Zhi 2022; 43:641-648. [PMID: 35589566 DOI: 10.3760/cma.j.cn112338-20211229-01030] [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: 06/15/2023]
Abstract
Objective: To describe the distribution characteristics of coronary heart disease in adult twins recruited from Chinese Twin Registry (CNTR), and provide clues and evidence for the effect of genetic and environmental influences on coronary heart disease. Methods: By using the data of CNTR during 2010-2018, a total of 34 583 twin pairs aged ≥18 years who completed questionnaire survey and had related information were included in the current study to analyze the population and area distribution characteristics of coronary heart disease. Random effect models were used to compare the differences between groups. The concordane rate of coronary heart disease were calculated respectively in monozygotic (MZ) twin pairs and dizygotic (DZ) twin pairs to estimate the heritability. Results: The twin pairs included in this analysis were aged (34.2±12.4) years. The overall prevalence rate of coronary heart disease in twin pairs was 0.7%. Twin pairs who were women, older, obese and lived in northern China had higher prevalence of coronary heart disease (P<0.05). Intra-pair analysis in the same-sex twin pairs found that the concordane rate of coronary heart disease was higher in MZ twin pairs (25.3%) than in DZ twins (7.4%), and the difference was statistically significant (P<0.001). The overall heritability of coronary heart disease was 19.3% (95%CI: 11.8%-26.8%). Stratified by gender, age and area, the concordane rate was still higher in MZ twin pairs than in DZ pairs. Participants who were women, aged 18-30 years or ≥60 years and lived in northern China had a higher heritability of coronary heart disease. Conclusion: The distribution of coronary heart disease in twin pairs differed in populations and areas. The prevalence of coronary heart disease was affected by genetic factors, but the effect varied with age, gender and area.
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Affiliation(s)
- J Ke
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China
| | - W J Gao
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China
| | - C Q Lyu
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China
| | - S F Yu
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China
| | - T Wang
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China
| | - D J Y Huang
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China
| | - C X Sun
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China
| | - Y J Liao
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China
| | - Z C Pang
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China
| | - M Pang
- Qingdao Municipal Center for Disease Control and Prevention, Qingdao 266033, China
| | - H Yu
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China
| | - X P Wang
- Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China
| | - Z Wu
- Sichuan Provincial Center for Disease Control and Prevention, Chengdu 610041, China
| | - F Dong
- Beijing Center for Disease Prevention and Control, Beijing 100013, China
| | - G J Wu
- Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336,China
| | - X J Jiang
- Tianjin Centers for Disease Control and Prevention, Tianjin 300011, China
| | - Y Wang
- Qinghai Center for Diseases Prevention and Control, Xining 810007, China
| | - J Liu
- Heilongjiang Provincial Center for Disease Control and Prevention, Harbin 150090, China
| | - L Deng
- Handan Center for Disease Control and Prevention, Handan 056001, China
| | - W H Lu
- Yunnan Center for Disease Control and Prevention, Kunming 650034, China
| | - L M Cao
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China
| | - Liming Li
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China
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7
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Zheng K, Gao WJ, Lyu CQ, Yu SF, Wang T, Huang DJY, Sun CX, Liao YJ, Pang ZC, Pang M, Yu H, Wang XP, Wu Z, Dong F, Wu GJ, Jiang XJ, Wang Y, Liu J, Deng L, Lu WH, Cao LM, Li L. [A descriptive analysis on type 2 diabetes in twins in China]. Zhonghua Liu Xing Bing Xue Za Zhi 2022; 43:634-640. [PMID: 35589565 DOI: 10.3760/cma.j.cn112338-20210705-00520] [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: 06/15/2023]
Abstract
Objective: To describe the distribution characteristics of type 2 diabetes in twins in Chinese National Twin Registry (CNTR), provide clues and evidence for revealing the influence of genetic and environmental factors for type 2 diabetes. Methods: Of all twins registered in the CNTR during 2010-2018, a total 18 855 twin pairs aged ≥30 years with complete registration information were included in the analysis. The random effect model was used to describe the population and area distribution characteristics and concordance of type 2 diabetes in twin pairs. Results: The mean age of the subjects was (42.8±10.2) years, the study subjects included 10 339 monozygotic (MZ) twin pairs and 8 516 dizygotic (DZ) twin pairs. The self-reported prevalence rate of type 2 diabetes was 2.2% in total population and there was no sighificant difference between MZ and DZ. Intra-twin pairs analysis showed that the concordance rate of type 2 diabetes was 38.2% in MZ twin pairs, and 16.0% in DZ twin pairs, the difference was statistically significant (P<0.001). The concordance rate of type 2 diabetes in MZ twin parts was higher than that in DZ twin pairs in both men and women, in different age groups and in different areas (P<0.05). Further stratified analysis showed that in northern China, only MZ twin pairs less than 60 years old were found to have a higher concordance rate of type 2 diabetes compared with DZ twin pairs (P<0.05). In southern China, the co-prevalence rate in male MZ twin pairs aged ≥60 years was still higher than that in DZ twin pairs (P<0.05). Conclusion: The twin pairs in this study had a lower self-reported prevalence of type 2 diabetes than the general population. The study results suggested that genetic factors play a role in type 2 diabetes prevalence in both men and women, in different age groups and in different areas, however, the effect might vary.
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Affiliation(s)
- K Zheng
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China
| | - W J Gao
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China
| | - C Q Lyu
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China
| | - S F Yu
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China
| | - T Wang
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China
| | - D J Y Huang
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China
| | - C X Sun
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China
| | - Y J Liao
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China
| | - Z C Pang
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China
| | - M Pang
- Qingdao Municipal Center for Disease Control and Prevention, Qingdao 266033, China
| | - H Yu
- Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou 310051, China
| | - X P Wang
- Jiangsu Provincial Center for Disease Control and Prevention, Nanjing 210009, China
| | - Z Wu
- Sichuan Provincial Center for Disease Control and Prevention, Chengdu 610041, China
| | - F Dong
- Beijing Center for Disease Prevention and Control, Beijing 100013, China
| | - G J Wu
- Shanghai Municipal Center for Disease Control and Prevention, Shanghai 200336, China
| | - X J Jiang
- Tianjin Centers for Disease Control and Prevention, Tianjin 300011, China
| | - Y Wang
- Qinghai Center for Diseases Prevention and Control, Xining 810007, China
| | - J Liu
- Heilongjiang Provincial Center for Disease Control and Prevention, Harbin 150090, China
| | - L Deng
- Handan Center for Disease Control and Prevention, Handan 056001, China
| | - W H Lu
- Yunnan Center for Disease Control and Prevention, Kunming 650034, China
| | - L M Cao
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China
| | - Liming Li
- Department of Epidemiology and Biostatistics, School of Public Health, Peking University, Beijing 100191, China
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8
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Le S, Fu X, Pang M, Zhou Y, Yin G, Zhang J, Fan D. The Antioxidative Role of Chaperone-Mediated Autophagy as a Downstream Regulator of Oxidative Stress in Human Diseases. Technol Cancer Res Treat 2022; 21:15330338221114178. [PMID: 36131551 PMCID: PMC9500268 DOI: 10.1177/15330338221114178] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
Chaperone-mediated autophagy (CMA) plays an important role in regulating a variety of cellular functions by selectively degrading damaged or functional proteins in the cytoplasm. One of the cellular processes in which CMA participates is the oxidative stress response. Oxidative stress regulates CMA activity, while CMA protects cells from oxidative damage by degrading oxidized proteins and preventing the accumulation of excessive reactive oxygen species (ROS). Changes in CMA activity have been found in many human diseases, and oxidative stress is also involved. Therefore, understanding the interaction mechanism of ROS and CMA will provide new targets for disease treatment. In this review, we discuss the role of CMA in combatting oxidative stress during the development of different conditions, such as aging, neurodegeneration, liver diseases, infections, pulmonary disorders, and cancers.
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Affiliation(s)
- Shuangshuang Le
- Guangxi Key Laboratory of Bio-Targeting Theranostics, National Center for International Research of Bio-Targeting Theranostics, Collaborative Innovation Center for Targeting Tumor Diagnosis and Therapy, Guangxi Talent Highland of Bio-Targeting Theranostics, 74626Guangxi Medical University, Nanning, China.,State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, 12644Air Force Military Medical University, Xi'an, China
| | - Xin Fu
- Guangxi Key Laboratory of Bio-Targeting Theranostics, National Center for International Research of Bio-Targeting Theranostics, Collaborative Innovation Center for Targeting Tumor Diagnosis and Therapy, Guangxi Talent Highland of Bio-Targeting Theranostics, 74626Guangxi Medical University, Nanning, China.,State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, 12644Air Force Military Medical University, Xi'an, China
| | - Maogui Pang
- State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, 12644Air Force Military Medical University, Xi'an, China
| | - Yao Zhou
- Guangxi Key Laboratory of Bio-Targeting Theranostics, National Center for International Research of Bio-Targeting Theranostics, Collaborative Innovation Center for Targeting Tumor Diagnosis and Therapy, Guangxi Talent Highland of Bio-Targeting Theranostics, 74626Guangxi Medical University, Nanning, China.,State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, 12644Air Force Military Medical University, Xi'an, China
| | - Guoqing Yin
- Department of Oncology, 572481Xianyang Hospital of Yan'an University, Xianyang, China
| | - Jie Zhang
- Department of Oncology, 572481Xianyang Hospital of Yan'an University, Xianyang, China
| | - Daiming Fan
- Guangxi Key Laboratory of Bio-Targeting Theranostics, National Center for International Research of Bio-Targeting Theranostics, Collaborative Innovation Center for Targeting Tumor Diagnosis and Therapy, Guangxi Talent Highland of Bio-Targeting Theranostics, 74626Guangxi Medical University, Nanning, China.,State Key Laboratory of Cancer Biology, National Clinical Research Center for Digestive Diseases and Xijing Hospital of Digestive Diseases, 12644Air Force Military Medical University, Xi'an, China
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9
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Li F, Chen Y, Pang M, Yang P, Jing H. Immune checkpoint inhibitors and cellular treatment for lymphoma immunotherapy. Clin Exp Immunol 2021; 205:1-11. [PMID: 33675535 DOI: 10.1111/cei.13592] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 01/30/2021] [Accepted: 02/21/2021] [Indexed: 11/29/2022] Open
Abstract
Malignant lymphoma (ML) is a common hematological malignancy with many subtypes. Patients with ML usually undergo traditional treatment failure and become relapsed or refractory (R/R) cases. Recently, immunotherapy, such as immune checkpoint inhibitors (ICIs) and cellular treatment, has gradually emerged and used in clinical trials with encouraging achievements for ML treatment, which exerts anti-tumor activity by blocking the immune evasion of tumor cells and enhancing the attack ability of immune cells. Targets of immune checkpoints include programmed cell death-1 (PD-1), programmed cell death-ligand 1 (PD-L1), cytotoxic T lymphocyte-associated protein 4 (CTLA-4), T cell immunoglobulin and ITIM domain (TIGIT), T cell immunoglobulin-3 (TIM-3) and lymphocyte activation gene 3 (LAG-3). Examples of cellular treatment are chimeric antigen receptor (CAR) T cells, cytokine-induced killer (CIK) cells and natural killer (NK) cells. This review aimed to present the current progress and future prospects of immunotherapy in lymphoma, with the focus upon ICIs and cellular treatment.
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Affiliation(s)
- F Li
- Department of Hematology, Lymphoma Research Center, Peking University Third Hospital, Beijing, China
| | - Y Chen
- Department of Hematology, Lymphoma Research Center, Peking University Third Hospital, Beijing, China
| | - M Pang
- Department of Hematology, Lymphoma Research Center, Peking University Third Hospital, Beijing, China
| | - P Yang
- Department of Hematology, Lymphoma Research Center, Peking University Third Hospital, Beijing, China
| | - H Jing
- Department of Hematology, Lymphoma Research Center, Peking University Third Hospital, Beijing, China
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10
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Pang M, Shi Z, Lei Z, Ge Y, Jiang S, Cao L. Structure and thermal properties of beeswax-based oleogels with different types of vegetable oil. Grasas y Aceites 2020. [DOI: 10.3989/gya.0806192] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Beeswax-based oleogels with different types of vegetable oil, including camellia oil (CO), soybean oil (SO), sunflower oil (SFO), or flaxseed oil (FO), were prepared and their structure and thermal properties were evaluated. The critical concentration of oleogel obtained from each of CO, SO, and SFO at 25 °C was 3% (w/w), and that from FO was 4%. Thermal measurements revealed similar thermodynamic curves for oleogels in different lipid phases. X-Ray diffraction showed orthorhombic perpendicular subcell packing and characteristic peaks of the β’ form. Furthermore, a morphology analysis of the crystals showed that they were needle shaped. Fourier transform-infrared spectra revealed that beeswax-based oleogels were formed via non-covalent bonds and may be stabilized with physical entanglements. The oleogels showed oil type-dependent oxidative abilities, but they were all stable and showed no obvious changes in peroxide value during 90 days of storage at 5 °C.
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11
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Song J, Zhang JW, Fu J, Pang M, Li G, Ma MM. [Clinical, myopathological and genetic features of two Chinese families with paramyotonia congenita]. Zhonghua Nei Ke Za Zhi 2020; 59:535-539. [PMID: 32594687 DOI: 10.3760/cma.j.cn112138-20191014-00690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the clinical, myopathological and genetic mutation characteristics in two Chinese families with paramyotonia congenita (PMC). Methods: Clinical manifestations, electrophysiology, muscle pathology and gene sequencing of two Chinese families with PMC were analyzed retrospectively. Results: Family 1 involved 12 patients in 4 consecutive generations and family 2 involved only 1 patient in 3 generations. The onset of symptoms in all patients started at early childhood. Both probands presented with myotonia triggered by cold and paroxysmal weakness. However, the other 11 patients in family 1 only manifested cold-induced myotonia. Serum creatine kinase (CK) was slightly elevated between attacks of weakness in the 2 probands, and was even greater than 10 000 U/L during the episodes of weakness in the second proband, whose lower limb MRI revealed edema in bilateral medial gastrocnemius. Electromyography showed diffuse myotonia discharge and myogenic impairment in both probands, and myotonia discharge in the first proband's mother. Muscle pathology of both probands showed mild myopathic changes, and tube aggregation was occasionally observed in the second one. Genetic testing revealed a maternally inherited heterozygous R1448H mutation of SCN4A gene in the first proband and part of his family. A novel heterozygous R1448G mutation of SCN4A gene was reported in the second proband. Conclusions: Cold-triggered myotonia with or without paroxysmal weakness are the common characteristics of PMC. Myotonic potential and myogenic impairment can be tested in electromyography. The p.R1448G mutation is a new missense mutation.
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Affiliation(s)
- J Song
- Department of Neurology, Henan Provincial People's Hospital & the People's Hospital of Zhengzhou University, Zhengzhou 450003, China
| | - J W Zhang
- Department of Neurology, Henan Provincial People's Hospital & the People's Hospital of Zhengzhou University, Zhengzhou 450003, China
| | - J Fu
- Department of Neurology, Henan Provincial People's Hospital & the People's Hospital of Zhengzhou University, Zhengzhou 450003, China
| | - M Pang
- Department of Neurology, Henan Provincial People's Hospital & the People's Hospital of Zhengzhou University, Zhengzhou 450003, China
| | - G Li
- Department of Neurology, Henan Provincial People's Hospital & the People's Hospital of Zhengzhou University, Zhengzhou 450003, China
| | - M M Ma
- Department of Neurology, Henan Provincial People's Hospital & the People's Hospital of Zhengzhou University, Zhengzhou 450003, China
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12
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Chen YF, Huang ZY, Wang D, Zhao Y, Fu JH, Pang M, Leng YX, Xu ZZ. Single-scan, dual-functional interferometer for fast spatio-temporal characterization of few-cycle pulses. Opt Lett 2020; 45:5081-5084. [PMID: 32932458 DOI: 10.1364/ol.403575] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2020] [Accepted: 08/19/2020] [Indexed: 06/11/2023]
Abstract
Accurate and fast characterization of spatio-temporal information of high-intensity, ultrashort pulses is crucial in the field of strong-field laser science and technology. While conventional self-referenced interferometers were widely used to retrieve the spatial profile of the relative spectral phase of pulses, additional measurements of temporal and spectral information at a particular position of the laser beam, however, were necessary to remove the indeterminacy, which increases the system complexity. Here we report an advanced, dual-functional interferometer that is able to reconstruct the complete spatio-temporal information of ultrashort pulses with a single scan of the interferometer arm. The setup integrates an interferometric frequency-resolved optical gating (FROG) with a radial shearing Michelson interferometer. Through scanning one arm of the interferometer, both the cross-correlated FROG trace at the central part of the laser beam and the delay-dependent interferograms of the entire laser profile are simultaneously obtained, allowing a fast three-dimensional reconstruction of few-cycle laser pulses.
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13
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Swiecicki P, Durm G, Bellile E, Brummel C, Pang M, Bhangale A, Brenner J, Worden F. A multi-center phase II trial evaluating the efficacy of palbociclib in combination with carboplatin for the treatment of unresectable recurrent or metastatic head and neck squamous cell carcinoma. Int J Radiat Oncol Biol Phys 2020. [DOI: 10.1016/j.ijrobp.2019.11.134] [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: 11/15/2022]
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14
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Yang AN, Wang XL, Rui HR, Luo H, Pang M, Dou XM. Neuropsychiatric Symptoms and Risk Factors in Mild Cognitive Impairment: A Cohort Investigation of Elderly Patients. J Nutr Health Aging 2020; 24:237-241. [PMID: 32003417 DOI: 10.1007/s12603-020-1312-9] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/16/2022]
Abstract
BACKGROUND Neuropsychiatric symptoms (NPS) have been shown to affect the progression and development of Alzheimer's disease (AD) in the elderly. However, the published data are still controversial and limited in large cohort-based NPS study. AIM To explore the potential relationship between NPS and mild cognitive impairment (MCI) among the elderly of Chinese community. METHODS A total of 465 Chinese community-dwelling elderly (age ≥ 60 years) with mild cognitive impairment (MCI) were recruited into this investigation. At baseline, enrolled participants were assessed for Clinical Dementia Rating (CDR), mini-psychiatric examination. They were also subjected to categorical language fluency test, list learning and delayed recall. We assessed the NPS severity by Neuropsychological Inventory (NPI). The global cognitive status (GCS) of the participants at the end of the 3-year study period were measured with the CDR. RESULTS Approximately 41.6% of subjects had 1 or more NPS (total NPI score ≥ 1) at baseline. The most common NPSs were nocturnal behavior (20.8%), depression (17.3%), apathy (12.7%) and anxiety (13.2%). At the end of 3-year follow-up, 26.9% of baseline depressed patients developed AD, while 15.2% of baseline non-depressed patients developed AD (χ2 = 4.86, P=0. 04). Abnormal motor behavior was significantly correlated with cognitive deterioration as well (χ2 = 5.75, P=0. 03). Logistic regression analysis revealed that depression was considered as a risk factor for AD progression at baseline (95% CI: 1.12-5.67, OR=2.37, P=0.03). CONCLUSIONS Depression may be an independent factor representing early neurodegeneration in elder patients with MCI. Further studies are warranted to assess whether effective management of NPS promotes the cognitive functions.
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Affiliation(s)
- A-N Yang
- Xin-Man Dou, Lanzhou University Second Hospital, China, E-Mail:
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15
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He W, Pang M, Yeh DH, Huang J, Menyuk CR, Russell PSJ. Formation of optical supramolecular structures in a fibre laser by tailoring long-range soliton interactions. Nat Commun 2019; 10:5756. [PMID: 31848348 PMCID: PMC6917763 DOI: 10.1038/s41467-019-13746-6] [Citation(s) in RCA: 25] [Impact Index Per Article: 5.0] [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: 07/17/2019] [Accepted: 11/11/2019] [Indexed: 11/09/2022] Open
Abstract
Self-assembly of fundamental elements through weak, long-range interactions plays a central role in both supramolecular DNA assembly and bottom-up synthesis of nanostructures. Optical solitons, analogous in many ways to particles, arise from the balance between nonlinearity and dispersion and have been studied in numerous optical systems. Although both short- and long-range interactions between optical solitons have attracted extensive interest for decades, stable soliton supramolecules, with multiple aspects of complexity and flexibility, have thus far escaped experimental observation due to the absence of techniques for enhancing and controlling the long-range inter-soliton forces. Here we report that long-range soliton interactions originating from optoacoustic effects and dispersive-wave radiations can be precisely tailored in a fibre laser cavity, enabling self-assembly of large numbers of optical solitons into highly-ordered supramolecular structures. We demonstrate several features of such optical structures, highlighting their potential applications in optical information storage and ultrafast laser-field manipulation.
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Affiliation(s)
- W He
- Max Planck Institute for the Science of Light, Friedrich Alexander University, Staudtstrasse 2, 91058, Erlangen, Germany
| | - M Pang
- Max Planck Institute for the Science of Light, Friedrich Alexander University, Staudtstrasse 2, 91058, Erlangen, Germany. .,State Key Laboratory of High Field Laser Physics, Shanghai Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, 201800, Shanghai, China.
| | - D H Yeh
- Max Planck Institute for the Science of Light, Friedrich Alexander University, Staudtstrasse 2, 91058, Erlangen, Germany
| | - J Huang
- Max Planck Institute for the Science of Light, Friedrich Alexander University, Staudtstrasse 2, 91058, Erlangen, Germany
| | - C R Menyuk
- Department of Computer Science and Electrical Engineering, University of Maryland Baltimore County, Baltimore, MD, 21250, USA
| | - P St J Russell
- Max Planck Institute for the Science of Light, Friedrich Alexander University, Staudtstrasse 2, 91058, Erlangen, Germany.,Department of Physics, Friedrich Alexander University, Staudtstrasse 2, 91058, Erlangen, Germany
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16
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DA Y, Lu Y, Pang M, Shen X. EP.09Hypersomnia-featured very long-chain acyl-coenzyme a dehydrogenase deficiency caused by a homozygous R428H mutation of ACADVL. Neuromuscul Disord 2019. [DOI: 10.1016/j.nmd.2019.06.139] [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: 11/28/2022]
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17
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Huang J, Pang M, Jiang X, He W, Russell PS. Route from single-pulse to multi-pulse states in a mid-infrared soliton fiber laser. Opt Express 2019; 27:26392-26404. [PMID: 31674522 DOI: 10.1364/oe.27.026392] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Accepted: 08/11/2019] [Indexed: 06/10/2023]
Abstract
State-of-the-art ultrafast mid-IR fiber lasers deliver optical solitons with durations of several hundred femtoseconds. The Er- or Ho-doped fluoride gain fibers generally used in these lasers have strong anomalous dispersion at ∼3 µm, which generally forces them to operate in the soliton regime. Here we report that a pulse-energy clamping effect, caused by the buildup of intracavity nonlinearities, limits the shortest obtainable pulse durations in these mid-infrared soliton fiber lasers. Excessive intra-cavity energy results in soliton instability, collapse and fragmentation into a variety of stable multi-pulse states, including phase-locked soliton molecules and harmonically mode-locked states. We report that the spectral evolution of the mid-IR laser pulses can be recorded between roundtrips through stretching their second-harmonic signal in a 25-km-length of single-mode fiber. Using a modified dispersive Fourier transform set-up, we were able to perform for the first time spectro-temporal measurements of mid-IR laser pulses both in the pulsed state and during pulse collapse and fragmentation. The results provide insight into the complex nonlinear dynamics of mid-IR soliton fiber lasers and open up new opportunities for obtaining a variety of stable multi-pulse mode-locked states at mid-IR wavelengths.
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18
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Huang ZY, Chen YF, Yu F, Wang D, Zhao RR, Zhao Y, Gao SF, Wang YY, Wang P, Pang M, Leng YX. Continuously wavelength-tunable blueshifting soliton generated in gas-filled photonic crystal fibers. Opt Lett 2019; 44:1805-1808. [PMID: 30933152 DOI: 10.1364/ol.44.001805] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2019] [Accepted: 03/05/2019] [Indexed: 06/09/2023]
Abstract
We experimentally report the generation of wavelength-tunable blueshifting soliton in the visible spectral region through a gas-filled single-ring photonic crystal fiber (SR-PCF). In particular, in a He-filled SR-PCF, we observed a sharp narrow-band spectral peak at the first resonant spectral region of the SR-PCF, which results from phase-matched nonlinear processes. To the best of our knowledge, this is the first time investigating the influence of the core-cladding resonance on the blueshifting soliton. In addition, when Ar gas was filled into the SR-PCF, some interference fringes on the blueshifting soliton were observed at high pulse-energy levels due to plasma-induced pulse fission. These two experimental observations are confirmed by numerical simulations. Furthermore, through properly adjusting input pulse energy, we found that the blueshifting soliton can obtain a high conversion efficiency (∼84%) and its wavelength can be tuned over hundreds of nanometers (∼240 nm).
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19
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Ma MM, Song J, Zhang JW, Gao L, Pang M, Li G, Fu J. [Skeletal muscle MRI of lower limbs in patients with facioscapulohumeral dystrophy]. Zhonghua Yi Xue Za Zhi 2019; 99:675-679. [PMID: 30831616 DOI: 10.3760/cma.j.issn.0376-2491.2019.09.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Objective: To investigate MRI features of lower limbs in patients with facioscapulohumeral dystrophy(FSHD). Methods: The clinical manifestations, myopathological findings and MRI images of 5 FSHD patients were studied retrospectively from June 2016 to December 2017 at Department of Neurology, Henan Provincial People's Hospital, 3 of which had a family history. Analysis of T(1)WI images enabled us to describe muscle fatty infiltration and STIR images to describe muscle edema. Each muscle was scored according to its fatty degeneration (fat replacement score range from 0-4). Results: The 5 patients were all asymmetrically involved. At the thigh level, the hamstrings were more affected than anterior muscles in 4 patients, and anterior muscles were more affected than hamstrings in only 1 patient. The most affected thigh muscles were usually the adductor magnus, semimembranosus, semitendinosus, femoral biceps long head and vastus medialis muscles (average fat replacement score of each muscle was more than 3). The calves were less affected than thighs.The average fat replacement score of the calf muscles was 1.0 for soleus, 0.9 for medial gastrocnemius, 0.8 for tibialis anterior, and 0.4 for lateral gastrocnemius. There was no fatty infiltration in peroneus and tibialis posterior. 4 out of 5 patients had edema in the lower limb muscles. Conclusion: Asymmetric involvement is a definitely helpful clue suggesting FSHD, and edema is a common phenomenon. At the thigh level, no unique imaging pattern can be highlighted in all the FSHD patients, overall, the hamstring, adductor magnus and vastus medialis are usually the most severely affected muscles. The calf muscles are less affected than the thigh muscles or spared. Soleus, medial gastrocnemius, and tibialis anterior are preferentially involved at the calf level.
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Affiliation(s)
- M M Ma
- Department of Neurology, Henan Provincial People's Hospital & People's Hospital of Zhengzhou University, Zhengzhou 450003, China
| | - J Song
- Department of Neurology, Henan Provincial People's Hospital & People's Hospital of Zhengzhou University, Zhengzhou 450003, China
| | - J W Zhang
- Department of Neurology, Henan Provincial People's Hospital & People's Hospital of Zhengzhou University, Zhengzhou 450003, China
| | - L Gao
- Department of Radiology, Henan Provincial People's Hospital & People's Hospital of Zhengzhou University, Zhengzhou 450003, China
| | - M Pang
- Department of Neurology, Henan Provincial People's Hospital & People's Hospital of Zhengzhou University, Zhengzhou 450003, China
| | - G Li
- Department of Neurology, Henan Provincial People's Hospital & People's Hospital of Zhengzhou University, Zhengzhou 450003, China
| | - J Fu
- Department of Neurology, Henan Provincial People's Hospital & People's Hospital of Zhengzhou University, Zhengzhou 450003, China
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Pang M, Bartel MJ, Brand EC, Brahmbhatt B, Patel K, Simons-Linares CR, Wolfsen HC, Raimondo M, Wallace MB, Woodward TA. Outcome of long benign esophageal strictures undergoing endoscopictherapy: a tertiary center experience. Dis Esophagus 2018; 31:4990672. [PMID: 29718161 DOI: 10.1093/dote/doy040] [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: 01/10/2023]
Affiliation(s)
- M Pang
- Division of Gastroenterology and Hepatology, Mayo Clinic
| | - M J Bartel
- Division of Gastroenterology and Hepatology, Mayo Clinic.,Section of Gastroenterology, Fox Chase Cancer Center, Temple Health, Philadelphia, Pennsylvania
| | - E C Brand
- Division of Gastroenterology and Hepatology, Mayo Clinic.,Department of Gastroenterology and Hepatology, University Medical Center Utrecht, Utrecht, Netherlands
| | - B Brahmbhatt
- Division of Gastroenterology and Hepatology, Mayo Clinic
| | - K Patel
- Division of Gastroenterology and Hepatology, Mayo Clinic.,University of North Florida, Jacksonville, Florida
| | - C R Simons-Linares
- Division of Gastroenterology and Hepatology, Mayo Clinic.,Department of Medicine, John Stronger Hospital, Cook County, Chicago, Illinois, USA
| | - H C Wolfsen
- Division of Gastroenterology and Hepatology, Mayo Clinic
| | - M Raimondo
- Division of Gastroenterology and Hepatology, Mayo Clinic
| | - M B Wallace
- Division of Gastroenterology and Hepatology, Mayo Clinic
| | - T A Woodward
- Division of Gastroenterology and Hepatology, Mayo Clinic
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21
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Yang P, Zhen JF, Pang M, Hu K, Zhao W, Dong F, Tian L, Ke XY, Jing HM. [Analysis of survival and treatment outcome of patients with primary diffuse large B cell lymphoma in reproductive system]. Zhonghua Yi Xue Za Zhi 2018; 98:1593-1596. [PMID: 29886651 DOI: 10.3760/cma.j.issn.0376-2491.2018.20.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyze clinical feature and treatment outcome of patients with primary diffuse large B cell lymphoma(DLBCL) in reproductive system. Methods: A total of 26 patients with DLBCL in reproductive system were retrospectively analyzed, and the clinical features, laboratory data were included in Kaplan-Meier and prognostic analysis. Results: In our center, the incidence of primary diffuse large B cell lymphoma in reproductive system was 3.5% in all DLBCL patients, and the median age was 62.0 years. Male are more common with unilateral testicular involvement, and 38.5% patients belong to Ⅲ and Ⅳstage while 84.6% patients belong to non-germinal center B cell-like subgroup. The overall response rate(ORR) for the whole group was 88.5%. The complete response rate was 76.9%. The 3, 5-year progression free survival rate was 70.5% and 62.7% , and the 3, 5-year overall survival rate was 83.5% and 69.6%, respectively. The most common recurrent sites were contralateral testis and central nervous system. Rituximab can improve the survival of patients and combined with contralateral irradiation can furtherly improve progression free survival of patients(P=0.047). Clinical stage, B symptom, IPI, the level of LDH, and CRP, age>60 years, and initial treatment outcome were predictive of overall survival. Conclusion: Primary diffuse large B cell lymphoma in reproductive system is a rare type of extranodal DLBCL which occurs in older men with aggressive features. The most common sites of recurrence were contralateral testis and central nervous system. Surgery, rituximab , radiotherapy and prophylactic intrathecal injection can improve the survival of patients and may be the first-line treatment.
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Affiliation(s)
- P Yang
- Department of Hematology, the Third Hospital of Peking University, Beijing 100191, China
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22
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D'Rozario J, Pang M, Mendonca S, Payne N, Heng T. Alveolar macrophage activation underlies the anti-inflammatory effects of entrapped MSCs. Cytotherapy 2018. [DOI: 10.1016/j.jcyt.2018.02.319] [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: 10/17/2022]
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23
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Seldeen KL, Halley PG, Volmar CH, Rodríguez MA, Hernandez M, Pang M, Carlsson SK, Suva LJ, Wahlestedt C, Troen BR, Brothers SP. Neuropeptide Y Y2 antagonist treated ovariectomized mice exhibit greater bone mineral density. Neuropeptides 2018; 67:45-55. [PMID: 29129406 PMCID: PMC5805636 DOI: 10.1016/j.npep.2017.11.005] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2017] [Revised: 11/06/2017] [Accepted: 11/06/2017] [Indexed: 12/15/2022]
Abstract
Osteoporosis, a disease characterized by progressive bone loss and increased risk of fracture, often results from menopausal loss of estrogen in women. Neuropeptide Y has been shown to negatively regulate bone formation, with amygdala specific deletion of the Y2 receptor resulting in increased bone mass in mice. In this study, ovariectomized (OVX) mice were injected once daily with JNJ-31020028, a brain penetrant Y2 receptor small molecule antagonist to determine the effects on bone formation. Antagonist treated mice had reduced weight and showed increased whole-body bone mineral density compared to vehicle-injected mice. Micro computerized tomography (micro-CT) demonstrated increased vertebral trabecular bone volume, connectivity density and trabecular thickness. Femoral micro-CT analysis revealed increased bone volume within trabecular regions and greater trabecular number, without significant difference in other parameters or within cortical regions. A decrease was seen in serum P1NP, a measure used to confirm positive treatment outcomes in bisphosphonate treated patients. C-terminal telopeptide 1 (CTX-1), a blood biomarker of bone resorption, was decreased in treated animals. The higher bone mineral density observed following Y2 antagonist treatment, as determined by whole-body DEXA scanning, is indicative of either enhanced mineralization or reduced bone loss. Additionally, our findings that ex vivo treatment of bone marrow cells with the Y2 antagonist did not affect osteoblast and osteoclast formation suggests the inhibitor is not affecting these cells directly, and suggests a central role for compound action in this system. Our results support the involvement of Y2R signalling in bone metabolism and give credence to the hypothesis that selective pharmacological manipulation of Y2R may provide anabolic benefits for treating osteoporosis.
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Affiliation(s)
- K L Seldeen
- Division of Geriatrics and Palliative Medicine, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, NY, USA; Research Service, Veterans Affairs Western New York Healthcare System, Buffalo, NY, USA
| | - P G Halley
- Center for Therapeutic Innovation, Department of Psychiatry and Behavioral Sciences, University of Miami Miller School of Medicine, Miami, FL, USA
| | - C H Volmar
- Center for Therapeutic Innovation, Department of Psychiatry and Behavioral Sciences, University of Miami Miller School of Medicine, Miami, FL, USA
| | - M A Rodríguez
- Bruce W. Carter VA Geriatric Research Education and Clinical Center (GRECC), Miami, FL, USA; University of Miami Miller School of Medicine, Miami, FL, USA
| | - M Hernandez
- Bruce W. Carter VA Geriatric Research Education and Clinical Center (GRECC), Miami, FL, USA; University of Miami Miller School of Medicine, Miami, FL, USA
| | - M Pang
- Division of Geriatrics and Palliative Medicine, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, NY, USA; Research Service, Veterans Affairs Western New York Healthcare System, Buffalo, NY, USA
| | - S K Carlsson
- Center for Therapeutic Innovation, Department of Psychiatry and Behavioral Sciences, University of Miami Miller School of Medicine, Miami, FL, USA
| | - L J Suva
- Department of Orthopaedic Surgery, Centre for Orthopaedic Research, University of Arkansas Medical School, Little Rock, AR, USA
| | - C Wahlestedt
- Center for Therapeutic Innovation, Department of Psychiatry and Behavioral Sciences, University of Miami Miller School of Medicine, Miami, FL, USA
| | - B R Troen
- Division of Geriatrics and Palliative Medicine, Jacobs School of Medicine and Biomedical Sciences, University at Buffalo, Buffalo, NY, USA; Research Service, Veterans Affairs Western New York Healthcare System, Buffalo, NY, USA
| | - S P Brothers
- Center for Therapeutic Innovation, Department of Psychiatry and Behavioral Sciences, University of Miami Miller School of Medicine, Miami, FL, USA.
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24
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Xia B, Meng Q, Pang M, Lu Q, Zhang H. 400 Proteomic analysis of intestinal mucosa from weaning piglets with feeding Clostridium butyricum. J Anim Sci 2017. [DOI: 10.2527/asasann.2017.400] [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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25
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Zhang Y, Zhao Y, Pang M, Wu Y, Zhuang K, Zhang H, Bhat A. High-dose clopidogrel versus ticagrelor for treatment of acute coronary syndromes after percutaneous coronary intervention in CYP2C19 intermediate or poor metabolizers: a prospective, randomized, open-label, single-centre trial. Acta Cardiol 2016; 71:309-16. [PMID: 27594126 DOI: 10.2143/ac.71.3.3152091] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Key Words] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
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26
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Pang M, He W, St J Russell P. Gigahertz-repetition-rate Tm-doped fiber laser passively mode-locked by optoacoustic effects in nanobore photonic crystal fiber. Opt Lett 2016; 41:4601-4604. [PMID: 27749891 DOI: 10.1364/ol.41.004601] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
We report a Tm-doped soliton fiber laser passively mode-locked by intense optoacoustic interactions in a short length of solid-core silica photonic crystal fiber (PCF) with a nanobore in core-center. A repetition rate of 1.446 GHz pulse is achieved, corresponding to the 52nd harmonic of the 27.8 MHz cavity round-trip frequency. Strong optoacoustic interactions in this PCF-based, Tm-doped fiber laser ensure stable and repeatable gigahertz-rate pulse train generation at 1.85 μm wavelength, with a high supermode noise suppression ratio and low pulse timing jitter.
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27
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Pang M, He SJ, Cao LL, Jiang ST. Optimization and evaluation of foxtail millet ( Setaria italica) bran oil by supercritical carbon dioxide extraction. Grasas y Aceites 2015. [DOI: 10.3989/gya.0239151] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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28
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Abstract
Frailty is highly prevalent in the elderly, increasing the risk of poor outcomes that include falls, incident disability, hospitalization, and mortality. Thus, a great need exists to characterize the underlying mechanisms and ultimately identify strategies that prevent, delay, and even reverse frailty. Mouse models can provide insight into molecular mechanisms of frailty by reducing variability in lifestyle and genetic factors that can complicate interpretation of human clinical data. Frailty, generally recognized as a syndrome involving reduced homeostatic reserve in response to physiologic challenges and increasing susceptibility to poor health outcomes, is predominantly assessed using two independent strategies, integrated phenotype and deficit accumulation. The integrated phenotype defines frailty by the presentation of factors affecting functional capacity such as weight loss, exhaustion, low activity levels, slow gait, and grip strength. The deficit accumulation paradigm draws parameters from a greater range of physiological systems, such as the ability to perform daily activities, coordination and gait, mental components, physiological problems, and history and presence of medical morbidities. This strategic division also applies within the emerging field of mouse frailty models, with both methodologies showing usefulness in providing insight into physiologic mechanisms and testing interventions. Our review will explore the strategies used, caveats in methodology, and future directions in the application of animal models for the study of the frailty syndrome.
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Affiliation(s)
- K L Seldeen
- Division of Geriatrics and Palliative Medicine, University at Buffalo - SUNY, Research Service, Western New York Veterans Affairs Healthcare Service, 875 Ellicott Street, Buffalo, NY, 14203, USA
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29
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Sun YH, Song PY, Guo Y, Pang M, He WN, Zhang WH, Sheng LJ. Effects of microwave ablation or its combination with whole-body chemotherapy on serum vascular endothelial growth factor levels in patients with stage IIIB/IV NSCLC. Genet Mol Res 2015; 14:10015-25. [PMID: 26345938 DOI: 10.4238/2015.august.21.8] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
We aimed to analyze the changes of serum vascular endothelial growth factor (VEGF) before and after microwave ablation (MWA) in patients with stage IIIB-IV non-small cell lung cancer (NSCLC), and to observe the effects of MWA combined with chemotherapy on short-term therapeutic efficacy and long-term survival. Concentrations of serum VEGF in 20 healthy subjects were considered as controls. Changes of serum VEGF were detected by ELISA before and after MWA (1 and 7 days after treatment). Seven days after MWA, patients were divided into a combination chemotherapy group of 22 subjects and a MWA alone group of 18 subjects. Serum VEGF was measured 1 month after MWA and 4 cycles after chemotherapy (3 months) to evaluate term effects; and 1- and 2-year survival rates. Serum VEGF concentrations declined sharply 1 day after MWA, and were significantly different from the levels before treatment. Subsequently, VEGF rebounded 7 days after ablation, higher than that before treatment. At 1 and 3 months, serum VEGF levels in both treatment groups were remarkably lower than that before treatment; efficiency, or for the 1-year survival rate. However, the 2-year survival rates were significantly different between the two groups. We demonstrated that after MWA, the serum VEGF concentration undergoes a process of increasing, which might promote metastasis and recurrence of NSCLC. MWA combined with whole-body chemotherapy appears to be an effective method to increase the disease control rate, reduce the probability of metastasis and recurrence, and thus improve long-term survival.
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Affiliation(s)
- Y H Sun
- Affiliated Hospital of ShanDong Academy of Medical Sciences, Shandong, China
| | - P Y Song
- Affiliated Hospital of ShanDong Academy of Medical Sciences, Shandong, China
| | - Y Guo
- Affiliated Hospital of ShanDong Academy of Medical Sciences, Shandong, China
| | - M Pang
- Affiliated Hospital of ShanDong Academy of Medical Sciences, Shandong, China
| | - W-N He
- Affiliated Hospital of ShanDong Academy of Medical Sciences, Shandong, China
| | - W H Zhang
- Affiliated Hospital of ShanDong Academy of Medical Sciences, Shandong, China
| | - L J Sheng
- Affiliated Hospital of ShanDong Academy of Medical Sciences, Shandong, China
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Pang M, Liu X, Madhankumar AB, Slagle-Webb B, Connor J. RT-40 * THE DOWN-REGULATION OF H-FERRITIN AS AN ADJUVANT THERAPY IN HUMAN GLIOMA. Neuro Oncol 2014. [DOI: 10.1093/neuonc/nou270.36] [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: 11/12/2022] Open
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31
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Russ M, Pang M, Troen B, Rudin S, Ionita C. SU-E-T-143: Effect of X-Ray and Cone Beam CT Reconstruction Parameters On Estimation of Bone Volume of Mice Used in Aging Research. Med Phys 2014. [DOI: 10.1118/1.4888473] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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32
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Tsuzaka K, Onoda N, Yoshimoto K, Setoyama Y, Suzuki K, Pang M, Abe T, Takeuchi T. T-cell receptor ζ mRNA with an alternatively spliced 3' untranslated region is generated predominantly in the peripheral blood T cells of systemic lupus erythematosus patients. Mod Rheumatol 2014; 12:167-73. [PMID: 24383906 DOI: 10.3109/s101650200028] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
Abstract To investigate the mechanism of the downregulation of T-cell receptor ζ chain (TCRζ) expression in the peripheral blood T cells (PBTs) of systemic lupus erythematosus (SLE) patients, we analyzed the 3' untranslated region (3'UTR) of TCRζ mRNA, because the 3'UTR in mRNA is responsible for posttranscriptional regulation. Use of the reverse transcriptase polymerase chain reaction (RT-PCR) to amplify the 917 bp TCRζ 3'UTR cDNA demonstrated that the short variant cDNA (355 bp), expressed as an alternatively spliced 3'UTR with 562-bp deletion, was predominated in the PBTs of 11 of 14 SLE patients, whereas mainly the wild-form cDNA (917 bp) was detected in the PBTs of seven negative controls (two systemic sclerosis patients, five normal controls) and in two T-cell line hybridomas. Semiquantitative PCR also revealed the predominant expression of the TCRζ mRNA with alternatively spliced 3'UTR (TCRζ mRNA/as-3'UTR), and a decreased expression of TCRζ mRNA with the wild form 3'UTR (TCRζ mRNA/w-3'UTR) in SLE T cells. However, there was no difference in the expression of the open reading frame (ORF) TCRζ mRNA between the negative controls and SLE patients. The TCRζ protein expression level according to Western blot analysis correlated well with that of TCRζ mRNA/w-3'UTR (r= 0.931) and reversibly with TCRζ mRNA/as-3'UTR (r=-0.614), but not with ORF TCRζ mRNA (r=-0.296). It can be concluded that the reduced expression of TCRζ mRNA/w-3'UTR and the predominant expression of TCRζ mRNA/as-3'UTR lead to downregulation of the TCRζ protein in SLE T cells.
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Affiliation(s)
- K Tsuzaka
- Second Department of Internal Medicine, Saitama Medical Center, Saitama Medical School , 1981 Kamoda, Kawagoe 350-8550 , Japan
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Aaberg-Jessen C, Fogh L, Halle B, Jensen V, Brunner N, Kristensen BW, Abe T, Momii Y, Watanabe J, Morisaki I, Natsume A, Wakabayashi T, Fujiki M, Aldaz B, Fabius AWM, Silber J, Harinath G, Chan TA, Huse JT, Anai S, Hide T, Nakamura H, Makino K, Yano S, Kuratsu JI, Balyasnikova IV, Prasol MS, Kanoija DK, Aboody KS, Lesniak MS, Barone T, Burkhart C, Purmal A, Gudkov A, Gurova K, Plunkett R, Barton K, Misuraca K, Cordero F, Dobrikova E, Min H, Gromeier M, Kirsch D, Becher O, Pont LB, Kloezeman J, van den Bent M, Kanaar R, Kremer A, Swagemakers S, French P, Dirven C, Lamfers M, Leenstra S, Pont LB, Balvers R, Kloezeman J, Kleijn A, Lawler S, Leenstra S, Dirven C, Lamfers M, Gong X, Andres A, Hanson J, Delashaw J, Bota D, Chen CC, Yao NW, Chuang WJ, Chang C, Chen PY, Huang CY, Wei KC, Cheng Y, Dai Q, Morshed R, Han Y, Auffinger B, Wainwright D, Zhang L, Tobias A, Rincon E, Thaci B, Ahmed A, He C, Lesniak M, Choi YA, Pandya H, Gibo DM, Fokt I, Priebe W, Debinski W, Chornenkyy Y, Agnihotri S, Buczkowicz P, Rakopoulos P, Morrison A, Barszczyk M, Becher O, Hawkins C, Chung S, Decollogne S, Luk P, Shen H, Ha W, Day B, Stringer B, Hogg P, Dilda P, McDonald K, Moore S, Hayden-Gephart M, Bergen J, Su Y, Rayburn H, Edwards M, Scott M, Cochran J, Das A, Varma AK, Wallace GC, Dixon-Mah YN, Vandergrift WA, Giglio P, Ray SK, Patel SJ, Banik NL, Dasgupta T, Olow A, Yang X, Mueller S, Prados M, James CD, Haas-Kogan D, Dave ND, Desai PB, Gudelsky GA, Chow LML, LaSance K, Qi X, Driscoll J, Driscoll J, Ebsworth K, Walters MJ, Ertl LS, Wang Y, Berahovic RD, McMahon J, Powers JP, Jaen JC, Schall TJ, Eroglu Z, Portnow J, Sacramento A, Garcia E, Raubitschek A, Synold T, Esaki S, Rabkin S, Martuza R, Wakimoto H, Ferluga S, Tome CL, Debinski W, Forde HE, Netland IA, Sleire L, Skeie B, Enger PO, Goplen D, Giladi M, Tichon A, Schneiderman R, Porat Y, Munster M, Dishon M, Weinberg U, Kirson E, Wasserman Y, Palti Y, Giladi M, Porat Y, Schneiderman R, Munster M, Weinberg U, Kirson E, Palti Y, Gramatzki D, Staudinger M, Frei K, Peipp M, Weller M, Grasso C, Liu L, Becher O, Berlow N, Davis L, Fouladi M, Gajjar A, Hawkins C, Huang E, Hulleman E, Hutt M, Keller C, Li XN, Meltzer P, Quezado M, Quist M, Raabe E, Spellman P, Truffaux N, van Vurden D, Wang N, Warren K, Pal R, Grill J, Monje M, Green AL, Ramkissoon S, McCauley D, Jones K, Perry JA, Ramkissoon L, Maire C, Shacham S, Ligon KL, Kung AL, Zielinska-Chomej K, Grozman V, Tu J, Viktorsson K, Lewensohn R, Gupta S, Mladek A, Bakken K, Carlson B, Boakye-Agyeman F, Kizilbash S, Schroeder M, Reid J, Sarkaria J, Hadaczek P, Ozawa T, Soroceanu L, Yoshida Y, Matlaf L, Singer E, Fiallos E, James CD, Cobbs CS, Hashizume R, Tom M, Ihara Y, Ozawa T, Santos R, Torre JDL, Lepe E, Waldman T, Prados M, James D, Hashizume R, Ihara Y, Huang X, Yu-Jen L, Tom M, Mueller S, Gupta N, Solomon D, Waldman T, Zhang Z, James D, Hayashi T, Adachi K, Nagahisa S, Hasegawa M, Hirose Y, Gephart MH, Moore S, Bergen J, Su YS, Rayburn H, Scott M, Cochran J, Hingtgen S, Kasmieh R, Nesterenko I, Figueiredo JL, Dash R, Sarkar D, Fisher P, Shah K, Horne E, Diaz P, Stella N, Huang C, Yang H, Wei K, Huang T, Hlavaty J, Ostertag D, Espinoza FL, Martin B, Petznek H, Rodriguez-Aguirre M, Ibanez C, Kasahara N, Gunzburg W, Gruber H, Pertschuk D, Jolly D, Robbins J, Hurwitz B, Yoo JY, Bolyard C, Yu JG, Wojton J, Zhang J, Bailey Z, Eaves D, Cripe T, Old M, Kaur B, Serwer L, Yoshida Y, Le Moan N, Santos R, Ng S, Butowski N, Krtolica A, Ozawa T, Cary SPL, James CD, Johns T, Greenall S, Donoghue J, Adams T, Karpel-Massler G, Westhoff MA, Kast RE, Dwucet A, Wirtz CR, Debatin KM, Halatsch ME, Karpel-Massler G, Kast RE, Westhoff MA, Merkur N, Dwucet A, Wirtz CR, Debatin KM, Halatsch ME, Kievit F, Stephen Z, Wang K, Kolstoe D, Silber J, Ellenbogen R, Zhang M, Kitange G, Schroeder M, Sarkaria J, Kleijn A, Haefner E, Leenstra S, Dirven C, Lamfers M, Knubel K, Pernu BM, Sufit A, Pierce AM, Nelson SK, Keating AK, Jensen SS, Kristensen BW, Lachowicz J, Demeule M, Regina A, Tripathy S, Curry JC, Nguyen T, Castaigne JP, Le Moan N, Serwer L, Yoshida Y, Ng S, Davis T, Santos R, Davis A, Tanaka K, Keating T, Getz J, Kapp GT, Romero JM, Ozawa T, James CD, Krtolica A, Cary SPL, Lee S, Ramisetti S, Slagle-Webb B, Sharma A, Connor J, Lee WS, Maire C, Kluk M, Aster JC, Ligon K, Sun S, Lee D, Ho ASW, Pu JKS, Zhang ZQ, Lee NP, Day PJR, Leung GKK, Liu Z, Liu X, Madhankumar AB, Miller P, Webb B, Connor JR, Yang QX, Lobo M, Green S, Schabel M, Gillespie Y, Woltjer R, Pike M, Lu YJ, Torre JDL, Waldman T, Prados M, Ozawa T, James D, Luchman HA, Stechishin O, Nguyen S, Cairncross JG, Weiss S, Lun X, Wells JC, Hao X, Zhang J, Grinshtein N, Kaplan D, Luchman A, Weiss S, Cairncross JG, Senger D, Robbins S, Madhankumar A, Slagle-Webb B, Rizk E, Payne R, Park A, Pang M, Harbaugh K, Connor J, Wilisch-Neumann A, Pachow D, Kirches E, Mawrin C, McDonell S, Liang J, Piao Y, Nguyen N, Yung A, Verhaak R, Sulman E, Stephan C, Lang F, de Groot J, Mizobuchi Y, Okazaki T, Kageji T, Kuwayama K, Kitazato KT, Mure H, Hara K, Morigaki R, Matsuzaki K, Nakajima K, Nagahiro S, Kumala S, Heravi M, Devic S, Muanza T, Nelson SK, Knubel KH, Pernu BM, Pierce AM, Keating AK, Neuwelt A, Nguyen T, Wu YJ, Donson A, Vibhakar R, Venkatamaran S, Amani V, Neuwelt E, Rapkin L, Foreman N, Ibrahim F, New P, Cui K, Zhao H, Chow D, Stephen W, Nozue-Okada K, Nagane M, McDonald KL, Ogawa D, Chiocca E, Godlewski J, Ozawa T, Yoshida Y, Santos R, James D, Pang M, Liu X, Madhankumar AB, Slagle-Webb B, Patel A, Miller P, Connor J, Pasupuleti N, Gorin F, Valenzuela A, Leon L, Carraway K, Ramachandran C, Nair S, Quirrin KW, Khatib Z, Escalon E, Melnick S, Phillips A, Boghaert E, Vaidya K, Ansell P, Shalinsky D, Zhang Y, Voorbach M, Mudd S, Holen K, Humerickhouse R, Reilly E, Huang T, Parab S, Diago O, Espinoza FL, Martin B, Ibanez C, Kasahara N, Gruber H, Pertschuk D, Jolly D, Robbins J, Ryken T, Agarwal S, Al-Keilani M, Alqudah M, Sibenaller Z, Assemolt M, Sai K, Li WY, Li WP, Chen ZP, Saito R, Sonoda Y, Kanamori M, Yamashita Y, Kumabe T, Tominaga T, Sarkar G, Curran G, Jenkins R, Scharnweber R, Kato Y, Lin J, Everson R, Soto H, Kruse C, Kasahara N, Liau L, Prins R, Semenkow S, Chu Q, Eberhart C, Sengupta R, Marassa J, Piwnica-Worms D, Rubin J, Serwer L, Kapp GT, Le Moan N, Yoshida Y, Romero JM, Ng S, Davis A, Ozawa T, Krtolica A, James CD, Cary SPL, Shai R, Pismenyuk T, Moshe I, Fisher T, Freedman S, Simon A, Amariglio N, Rechavi G, Toren A, Yalon M, Shen H, Decollogne S, Dilda P, Chung S, Luk P, Hogg P, McDonald K, Shimazu Y, Kurozumi K, Ichikawa T, Fujii K, Onishi M, Ishida J, Oka T, Watanabe M, Nasu Y, Kumon H, Date I, Sirianni RW, McCall RL, Spoor J, van der Kaaij M, Kloezeman J, Geurtjens M, Dirven C, Lamfers M, Leenstra S, Stephen Z, Veiseh O, Kievit F, Fang C, Leung M, Ellenbogen R, Silber J, Zhang M, Strohbehn G, Atsina KK, Patel T, Piepmeier J, Zhou J, Saltzman WM, Takahashi M, Valdes G, Inagaki A, Kamijima S, Hiraoka K, Micewicz E, McBride WH, Iwamoto KS, Gruber HE, Robbins JM, Jolly DJ, Kasahara N, Warren K, McCully C, Bacher J, Thomas T, Murphy R, Steffen-Smith E, McAllister R, Pastakia D, Widemann B, Wei K, Yang H, Huang C, Chen P, Hua M, Liu H, Woolf EC, Abdelwahab MG, Fenton KE, Liu Q, Turner G, Preul MC, Scheck AC, Yoshida Y, Ozawa T, Butowski N, Shen W, Brown D, Pedersen H, James D, Zhang J, Hariono S, Yao TW, Sidhu A, Hashizume R, James CD, Weiss WA, Nicolaides TP, Olusanya T. EXPERIMENTAL THERAPEUTICS AND PHARMACOLOGY. Neuro Oncol 2013; 15:iii37-iii61. [PMCID: PMC3823891 DOI: 10.1093/neuonc/not176] [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: 09/21/2023] Open
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Nadelson J, Pang M, Toubia N, Somasundar P. Predicting malignancy of intraductal papillary mucinous neoplasms of the pancreas in elderly. J Geriatr Oncol 2013. [DOI: 10.1016/j.jgo.2013.09.055] [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: 11/28/2022]
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Zheng Y, Lu H, Jiang X, Pang M, Farthing C. Study on clinical epidemiology of male HIV/AIDS patients in a tertiary Chinese hospital, Shanghai, China. Public Health 2012; 127:76-8. [PMID: 23164611 DOI: 10.1016/j.puhe.2012.09.007] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/11/2011] [Revised: 05/24/2012] [Accepted: 09/24/2012] [Indexed: 10/27/2022]
Affiliation(s)
- Y Zheng
- Shanghai Public Health Clinical Centre, Fudan University, Shanghai, China
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Pianko S, Zeuzem S, Chuang WL, Foster GR, Sarin SK, Flisiak R, Lee CM, Andreone P, Piratvisuth T, Shah S, Sood A, George J, Gould M, Komolmit P, Thongsawat S, Tanwandee T, Rasenack J, Li Y, Pang M, Yin Y, Feutren G, Jacobson IM. Randomized trial of albinterferon alfa-2b every 4 weeks for chronic hepatitis C virus genotype 2/3. J Viral Hepat 2012; 19:623-34. [PMID: 22863266 DOI: 10.1111/j.1365-2893.2012.01586.x] [Citation(s) in RCA: 7] [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: 01/06/2023]
Abstract
Albinterferon alfa-2b (albIFN) is a fusion protein of recombinant human albumin/recombinant interferon (IFN)-α-2b, with ∼200-h half-life. Safety/efficacy of albIFN q4wk was evaluated in 391 treatment-naive patients with chronic hepatitis C virus (HCV) genotype 2/3. Patients were randomized 3:4:4:4 to one of four open-label treatment groups: pegylated IFN (Peg-IFN)-α-2a 180 μg qwk or albIFN 900, 1200 or 1500 μg q4wk, plus oral ribavirin 800 mg/day, for 24 weeks. Primary efficacy endpoint was sustained virologic response (SVR; HCV RNA <20 IU/mL 24 weeks post-treatment). SVR rates were as follows: 85%, 76%, 76% and 78% with Peg-IFNα-2a and albIFN 900, 1200 and 1500 μg, respectively (P = NS); corresponding rapid virologic response rates (HCV RNA <43 IU/mL at week 4) were as follows: 78%, 49% (P < 0.001), 60% (P = 0.01) and 71%. SVR rates were not influenced by interleukin 28B genotype, although rapid virologic response rates were greater with interleukin 28B CC (P = NS). Serious adverse event rates were as follows: 4%, 11%, 3% and 3% with Peg-IFNα-2a and albIFN 900, 1200 and 1500 μg, respectively. No increase in serious/severe respiratory events was noted with albIFN. Fewer absolute neutrophil count reductions <750/mm(3) occurred with albIFN (P = 0.03), leading to fewer IFN dose reductions. Haemoglobin reductions <10 g/dL were less frequent with albIFN 900 and 1200 μg vs 1500 μg and Peg-IFNα-2a (P = 0.02), leading to fewer ribavirin dose reductions. albIFN administered q4wk produced fewer haematologic reductions than Peg-IFNα-2a, but had numerically lower SVR rates (P = NS) in patients with chronic HCV genotype 2/3.
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Affiliation(s)
- S Pianko
- Monash Medical Centre and Monash University, Melbourne, Vic., Australia.
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Liao L, Lau R, Pang M. Measuring environmental barriers faced by individuals living with stroke: Development and validation of the Chinese version of the Craig Hospital Inventory of Environmental Factors. J Rehabil Med 2012; 44:740-6. [DOI: 10.2340/16501977-1014] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Chan SWY, Tan KY, Cheng AKS, Mak KSW, Aye AT, Pang M. Prospective study to validate HpOne in the diagnosis of Helicobacter pylori infection. Singapore Med J 2011; 52:814-817. [PMID: 22173251] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
INTRODUCTION The HpOne test is a new five-minute rapid urease test developed for the rapid detection of Helicobacter pylori infection during gastroscopy. However, evidence in the literature supporting its use clinically is scarce. The most commonly used rapid urease test remains the Campylobacter-like organism (CLO) test, which generates accurate readings only after 24 hours. The aim of this study was to evaluate the efficacy of the HpOne test in our local population. METHODS From August 2007 to May 2008, consecutive patients undergoing gastroscopy for various indications were recruited into this prospective study. Patients who were pregnant, lactating, on proton pump inhibitors, antibiotics, immunosuppressants or had previous gastric surgery were excluded. During gastroscopy, six gastric mucosal biopsies were taken; three from the body and three from the antrum. One body and one antral biopsy were used for each of the HpOne test, CLO test and histology. Results of the HpOne and CLO tests were then compared against the gold standard of histology. RESULTS Of the 149 patients recruited, 82 (55 percent) were men and 67 (45 percent) were women. The prevalence of Helicobacter pylori infection was 38.9 percent (n is 58). The sensitivity and specificity of the HpOne test were 65.5 percent and 85.7 percent, respectively, while those for the CLO test were 63.8 percent and 84.6 percent, respectively. CONCLUSION The HpOne test is as efficacious as the CLO test, with the added advantage of yielding results faster. It is thus a superior alternative and should be considered for clinical use.
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Affiliation(s)
- S W Y Chan
- Yong Loo Lin School of Medicine, 1E Kent Ridge Road, NUHS Tower Block Level 11, Singapore 119228
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Ridgway K, Ridgway KA, Pang M. The Use of A Sonic Digitiser and Mini-Computer in Particle Size and Shape Characterisation. J Pharm Pharmacol 2011. [DOI: 10.1111/j.2042-7158.1980.tb10892.x] [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] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- K Ridgway
- The School of Pharmacy, University of London, Brunswick Square, London WC1N 1AX
| | - K A Ridgway
- The School of Pharmacy, University of London, Brunswick Square, London WC1N 1AX
| | - M Pang
- The School of Pharmacy, University of London, Brunswick Square, London WC1N 1AX
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Abstract
AbstractPassive films have been grown electrochemically on a polycrystalline titanium alloy. By varying the applied voltages, the film thickness is varied. A testing apparatus has been constructed to allow measurements of nanomechanical properties during electrochemical testing using a Ag/AgCl reference electrode in a traditional three-electrode potentiostatic scan. The stress at which oxide film fracture occurs is correlated to the applied potential. Observations of in situ film fracture measurements on single grains during immersion show the strength of the film remains constant in environments in which the film is inert, but decreases by approximately 20% in solutions which lead to corrosion. The fracture mode of the oxide has been observed using atomic force microscopy, and is shown to qualitatively match the largest tensile stresses which develop using elastic contact mechanics. A simplified model for determining the maximum tensile stress around an indentation is presented, and is used to show the stress required for fracture increases approximately linearly with increasing applied anodic polarization, from 850 MiPa to approximately 3 GPa for applied potentials between 1 and 9 V.
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Abstract
A polarization controller was built by pressurizing laterally three segments of a commercial hollow-core photonic bandgap fiber. By varying the magnitudes of the applied pressures, the output state of polarization showed a good coverage of all the possible polarization states on the surface of the Poincaré sphere.
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Affiliation(s)
- M Pang
- Department of Electrical Engineering, The Hong Kong Polytechnic University, Hong Kong, China
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Jensen RL, Gilliespie D, Ajewung N, Faure R, Kamnasaran D, Ajewung N, Poirier D, Kamnasaran D, Tamura K, Wakimoto H, Rabkin SD, Martuza RL, Shah K, Hashizume R, Aoki Y, Serwer LP, Drummond D, Noble C, Park J, Bankiewicz K, James DC, Gupta N, Agerholm-Larsen B, Iversen HK, Jensen KS, Moller J, Ibsen P, Mahmood F, Gehl J, Corem E, Ram Z, Daniels D, Last D, Shneor R, Salomon S, Perlstein B, Margel S, Mardor Y, Charest G, Fortin D, Mathieu D, Sanche L, Paquette B, Li HF, Hashizume R, Aoki Y, Hariono S, Dasgupta T, Kim JS, Haas-Kogan D, Weiss WA, Gupta N, James CD, Waldman T, Nicolaides T, Ozawa T, Rao S, Sun H, Ng C, De La Torre J, Santos R, Prados M, James CD, Butowski N, Michaud K, Solomon DA, Li HF, Kim JS, Prados MD, Ozawa T, Waldman T, James CD, Pandya H, Gibo D, Debinski W, Vinchon-Petit S, Jarnet D, Jadaud E, Feuvret L, Garcion E, Menei P, Chen R, Yu JC, Liu C, Jaffer ZM, Chabala JC, Winssinger N, Rubenstein AE, Emdad L, Kothari H, Qadeer Z, Binello E, Germano I, Hirschberg H, Baek SK, Kwon YJ, Sun CH, Li SC, Madsen S, Debinski W, Liu T, Wang SW, Gibo DM, Fan QW, Cheng C, Hackett C, Feldman M, Houseman BT, Houseman BT, Nicolaides T, James CD, Haas-Kogan D, Oakes SA, Debnath J, Shokat KM, Weiss WA, Sai K, Chen F, Qiu Z, Mou Y, Zhang X, Yang Q, Chen Z, Patel TR, Zhou J, Piepmeier JM, Saltzman WM, Banerjee S, Kaul A, Gianino SM, Christians U, Gutmann DH, Wu J, Shen R, Puduvalli V, Koul D, Alfred Yung WK, Yun J, Sonabend A, Stuart M, Yanagihara T, Dashnaw S, Brown T, McCormick P, Romanov A, Sebastian M, Canoll P, Bruce JN, Piao L, Joshi K, Lee RJ, Nakano I, Madsen SJ, Chou CC, Blickenstaff JW, Sun CH, Zhou YH, Hirschberg H, Tome CML, Wykosky J, Palma E, Debinski W, Nduom E, Machaidze R, Kaluzova M, Wang Y, Nie S, Hadjipanayis C, Saito R, Nakamura T, Sonoda Y, Kumabe T, Tominaga T, Lun X, Zemp F, Zhou H, Stechishin O, Kelly JJ, Weiss S, Hamilton MG, Cairncross G, Rabinovich BA, Bell J, McFadden G, Senger DL, Forsyth PA, Kang P, Jane EP, Premkumar DR, Pollack IF, Yoo JY, Haseley A, Bratasz A, Powell K, Chiocca EA, Kaur B, Johns TG, Ferruzzi P, Mennillo F, De Rosa A, Rossi M, Giordano C, Magrini R, Benedetti G, Pericot GL, Magnoni L, Mori E, Thomas R, Tunici P, Bakker A, Yoo JY, Pradarelli J, Kaka A, Alvarez-Breckenridge C, Pan Q, Teknos T, Chiocca EA, Kaur B, Cen L, Ostrem JL, Schroeder MA, Mladek AC, Fink SR, Jenkins RB, Sarkaria JN, Madhankumar AB, Slagle-Webb B, Park A, Pang M, Klinger M, Harbaugh KS, Sheehan JM, Connor JR, Chen TC, Wang W, Hofman FM, Serwer LP, Michaud K, Drummond DC, Noble CO, Park JW, Ozawa T, James CD, Serwer LP, Noble CO, Michaud K, Drummond DC, Ozawa T, Zhou Y, Marks JD, Bankiewicz K, Park JW, James CD, Alonso MM, Gomez-Manzano C, Cortes-Santiago N, Roche FP, Fueyo J, Johannessen TCA, Grudic A, Tysnes BB, Nigro J, Bjerkvig R, Joshi AD, Parsons W, Velculescu VE, Riggins GJ, Bindra RS, Jasin M, Powell SN, Fu J, Koul D, Shen RJ, Colman H, Lang FF, Jensen MR, Alfred Yung WK, Friedman GK, Haas M, Cassady KA, Gillespie GY, Nguyen V, Murphy LT, Beauchamp AS, Hollingsworth CK, Debinski W, Mintz A, Pandya H, Garg S, Gibo D, Kridel S, Debinski W, Conrad CA, Madden T, Ji Y, Colman H, Priebe W, Seleverstov O, Purow BW, Grant GA, Wilson C, Campbell M, Humphries P, Li S, Li J, Johnson A, Bigner D, Dewhirst M, Sarkaria JN, Cen L, Pokorny JL, Mladek AC, Kitange GJ, Schroeder MA, Carlson BL, Suphangul M, Petro B, Mukhtar L, Baig MS, Villano J, Mahmud N, Keir ST, Reardon DA, Watson M, Shore GC, Bigner DD, Friedman HS, Keir ST, Gururangan S, Reardon DA, Bigner DD, Friedman HS. Pre-clinical Experimental Therapeutics and Pharmacology. Neuro Oncol 2010. [DOI: 10.1093/neuonc/noq116.s13] [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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Pang M, Xuan HF, Ju J, Jin W. Influence of strain and pressure to the effective refractive index of the fundamental mode of hollow-core photonic bandgap fibers. Opt Express 2010; 18:14041-14055. [PMID: 20588536 DOI: 10.1364/oe.18.014041] [Citation(s) in RCA: 3] [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] [Subscribe] [Scholar Register] [Indexed: 05/29/2023]
Abstract
We investigate the phase sensitivity of the fundamental mode of hollow-core photonic bandgap fibers to strain and acoustic pressure. A theoretical model is constructed to analyze the effect of axial strain and acoustic pressure on the effective refractive index of the fundamental mode. Simulation shows that, for the commercial HC-1550-02 fiber, the contribution of mode-index variation to the overall phase sensitivities to axial strain and acoustic pressure are respectively approximately -2% and approximately -17%. The calculated normalized phase-sensitivities of the HC-1550-02 fiber to strain and acoustic pressure are respectively 1 epsilon(-1) and -331.6 dB re microPa(-1) without considering mode-index variation, and 0.9797 epsilon(-1) and -333.1 dB re microPa(-1) when mode-index variation is included in the calculation. The latter matches better with the experimentally measured results.
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Affiliation(s)
- M Pang
- Department of Electrical Engineering, Hong Kong Polytechnic University, Hong Kong, China
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Leung PHM, Boost MV, Lau JTF, Wong ATY, Pang M, Ng TK, Tong ETF. Prevalence and risk factors for Chlamydia trachomatis infection among cross-border truck drivers in Hong Kong. Sex Transm Infect 2009; 85:27-9. [DOI: 10.1136/sti.2008.031880] [Citation(s) in RCA: 3] [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: 11/03/2022] Open
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Wagar EA, Pang M. The gene for the S7 ribosomal protein ofChlamydia trachomatis: characterization within the chlamydialsfroperon. Mol Microbiol 2006; 6:327-335. [DOI: 10.1111/j.1365-2958.1992.tb01475.x] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Yeung RWK, Jin LJ, Pang M, Pow E. Human histologic and electromicroscopic analysis with synthetic peptide enhanced hydroxyapatite in the maxillary sinus elevation procedure: a case report. IMPLANT DENT 2006; 14:237-41. [PMID: 16160568 DOI: 10.1097/01.id.0000173331.14116.7f] [Citation(s) in RCA: 4] [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] [Subscribe] [Scholar Register] [Indexed: 10/25/2022]
Abstract
Elevation of the sinus floor to augment the alveolar process to place implants is an effective treatment. The traditional use of autologous bone implies a secondary donor site and the related morbidity, and, hence, is not readily accepted by many patients. The new graft material, synthetic peptide enhanced hydroxyapatite (PepGen P-15 Flow, Ceramed Dental, Lakewood, CO, DENTSPLY Int.,York, PA), shows the ease in use and ability to generate new bone growth in the sinus elevation procedure. Histologic and electromicroscopic analysis was performed on the new bone formed after the application.
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Affiliation(s)
- Richie W K Yeung
- Discipline of Oral and Maxillofacial Surgery, Faculty of Dentistry, The University of Hong Kong, Prince Philip Dental Hospital, 34 Hospital Road, Hong Kong SAR, China.
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Abstract
We tested the activity of 48 structurally diverse antimicrobial peptides against Chlamydia trachomatis, serovar L2. The peptides' activity against C. trachomatis, serovar L2 was measured in 48-h McCoy cell shell vial assays. Peptides of 16-20 amino acids were more active than larger peptides, such as defensins. Beta-sheet protegrins, as well as alpha-helical peptides such as novispirin (G-10) were equally active. Enantiomers were as active as native structures. Moderate-sized circular mini-defensins were less effective against C. trachomatis. Moderate-sized cationic peptides may be useful in microbicide preparations designed to prevent chlamydial infection.
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Affiliation(s)
- B Yasin
- Department of Pathology and Laboratory Medicine, David Geffen School of Medicine at UCLA, Los Angeles, CA, USA
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Yasin B, Pang M, Lehrer RI, Wagar EA. Activity of Novispirin G-10, a novel antimicrobial peptide against Chlamydia trachomatis and vaginosis-associated bacteria. Exp Mol Pathol 2003; 74:190-5. [PMID: 12710952 DOI: 10.1016/s0014-4800(02)00022-9] [Citation(s) in RCA: 14] [Impact Index Per Article: 0.7] [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] [Indexed: 11/22/2022]
Abstract
We tested the activity of Novispirin G-10, a novel antimicrobial alpha-helical octadecapeptide structurally related to cathelicidins and other innate immunity peptides, against Chlamydia trachomatis serovars L2, D, and E and three organisms associated with bacterial vaginosis (BV). The peptide's activity against C. trachomatis was measured in 48-h shell vial assays with McCoy cell targets. Exposure to 100 micro g/ml of Novispirin G-10 reduced the infectivity of serovars D and E by 99.4-100% and serovar L2 by 91.7-99.1%. At the same concentration of 100 micro g/ml, Novispirin G-10 rapidly killed >99% of Mobiluncus curtisii, Gardnerella vaginalis, and Prevotella bivia, in standard colony-forming unit (CFU) assays. Given its simple structure and relative lack of cytotoxic and hemolytic activity, Novispirin G-10 may be a useful component of microbicide preparations designed to prevent chlamydial infection and/or remediate the abnormal vaginal flora associated with BV.
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Affiliation(s)
- B Yasin
- Department of Pathology and Laboratory Medicine, University of California at Los Angeles School of Medicine, Los Angeles, CA 90095-1731, USA
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Pang M, Setoyama Y, Tsuzaka K, Yoshimoto K, Amano K, Abe T, Takeuchi T. Defective expression and tyrosine phosphorylation of the T cell receptor zeta chain in peripheral blood T cells from systemic lupus erythematosus patients. Clin Exp Immunol 2002; 129:160-8. [PMID: 12100036 PMCID: PMC1906428 DOI: 10.1046/j.1365-2249.2002.01833.x] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
We have reported that tyrosine phosphorylation and expression of the T cell receptor zeta chain (TCR zeta) was decreased in two systemic lupus erythematosus (SLE) patients with an abnormal TCR zeta lacking exon-7. To examine further the TCR zeta defect and any possible relationship with specific clinical features, we studied the expression of TCR zeta in peripheral blood T cells from 44 patients with SLE, 53 with other rheumatic diseases (30 rheumatoid arthritis (RA), 11 systemic sclerosis (SSc) and 12 primary Sjögren's syndrome(SjS)) and 39 healthy individuals. Flow cytometric analysis demonstrated a significant decrease in the expression of TCR zeta in SLE (P < 0.001), but not in the other rheumatic diseases. Immunoprecipitation experiments confirmed that the expression of TCR zeta in SLE T cells was decreased dramatically (normal: 111.4 +/- 22.6%, SLE: 51.6 +/- 37.4%, P < 0.0001). The decrease in TCR zeta did not correlate with disease activity, or with the dose of prednisolone (PSL). There were, however, three SLE patients in whom the level of TCR zeta expression normalized after treatment, suggesting that mechanisms responsible for the TCR zeta defect appear to be heterogeneous. These results confirm the defective expression and altered tyrosine phosphorylation of TCR zeta in a large proportion of SLE patients, suggesting that it may play an important role in T cell dysfunction in SLE.
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MESH Headings
- Adult
- Arthritis, Rheumatoid/blood
- Arthritis, Rheumatoid/immunology
- Autoimmune Diseases/blood
- Autoimmune Diseases/drug therapy
- Autoimmune Diseases/immunology
- Autoimmunity
- Female
- Gene Expression Regulation
- Humans
- Immunosuppressive Agents/therapeutic use
- Lupus Erythematosus, Systemic/blood
- Lupus Erythematosus, Systemic/drug therapy
- Lupus Erythematosus, Systemic/immunology
- Lupus Erythematosus, Systemic/pathology
- Membrane Proteins/deficiency
- Membrane Proteins/genetics
- Membrane Proteins/metabolism
- Middle Aged
- Phosphorylation
- Prednisolone/therapeutic use
- Protein Processing, Post-Translational
- Receptors, Antigen, T-Cell/deficiency
- Receptors, Antigen, T-Cell/genetics
- Receptors, Antigen, T-Cell/metabolism
- Sjogren's Syndrome/blood
- Sjogren's Syndrome/immunology
- T-Lymphocyte Subsets/metabolism
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Affiliation(s)
- M Pang
- Second Department of Internal Medicine, Saitama Medical Center, Saitama Medical School, Kawagoe, Japan
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Alavi-Harati A, Alexopoulos T, Arenton M, Arisaka K, Averitte S, Barbosa RF, Barker AR, Barrio M, Bellantoni L, Bellavance A, Belz J, Ben-David R, Bergman DR, Blucher E, Bock GJ, Bown C, Bright S, Cheu E, Childress S, Coleman R, Corcoran MD, Corti G, Cox B, Crisler MB, Erwin AR, Ford R, Glazov A, Golossanov A, Graham G, Graham J, Hagan K, Halkiadakis E, Hamm J, Hanagaki K, Hidaka S, Hsiung YB, Jejer V, Jensen DA, Kessler R, Kobrak HGE, LaDue J, Lath A, Ledovskoy A, McBride PL, Mikelsons P, Monnier E, Nakaya T, Nelson KS, Nguyen H, O'Dell V, Pang M, Pordes R, Prasad V, Qi XR, Quinn B, Ramberg EJ, Ray RE, Roodman A, Sadamoto M, Schnetzer S, Senyo K, Shanahan P, Shawhan PS, Shields J, Slater W, Solomey N, Somalwar SV, Stone RL, Swallow EC, Taegar SA, Tesarek RJ, Thomson GB, Toale PA, Tripathi A, Tschirhart R, Turner SE, Wah YW, Wang J, White HB, Whitmore J, Winstein B, Winston R, Yamanaka T, Zimmerman ED. Measurement of the K(L) charge asymmetry. Phys Rev Lett 2002; 88:181601. [PMID: 12005674 DOI: 10.1103/physrevlett.88.181601] [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] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/31/2001] [Indexed: 05/23/2023]
Abstract
We present a measurement of the charge asymmetry delta(L) in the mode K(L)-->pi(+/-)e(-/+)nu based on 298 x 10(6) analyzed decays. We measure a value of delta(L) = [3322+/-58(stat)+/-47(syst)]x10(-6), in good agreement with previous measurements and 2.4 times more precise than the current best published result. The result is used to place more stringent limits on CPT and DeltaS = DeltaQ violation in the neutral kaon system.
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