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Chen CL, Cheng SY, Montaser-Kouhsari L, Wu WC, Hsu YC, Tai CH, Tseng WYI, Kuo MC, Wu RM. Advanced brain aging in Parkinson's disease with cognitive impairment. NPJ Parkinsons Dis 2024; 10:62. [PMID: 38493188 PMCID: PMC10944471 DOI: 10.1038/s41531-024-00673-7] [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] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2023] [Accepted: 02/29/2024] [Indexed: 03/18/2024] Open
Abstract
Patients with Parkinson's disease and cognitive impairment (PD-CI) deteriorate faster than those without cognitive impairment (PD-NCI), suggesting an underlying difference in the neurodegeneration process. We aimed to verify brain age differences in PD-CI and PD-NCI and their clinical significance. A total of 94 participants (PD-CI, n = 27; PD-NCI, n = 34; controls, n = 33) were recruited. Predicted age difference (PAD) based on gray matter (GM) and white matter (WM) features were estimated to represent the degree of brain aging. Patients with PD-CI showed greater GM-PAD (7.08 ± 6.64 years) and WM-PAD (8.82 ± 7.69 years) than those with PD-NCI (GM: 1.97 ± 7.13, Padjusted = 0.011; WM: 4.87 ± 7.88, Padjusted = 0.049) and controls (GM: -0.58 ± 7.04, Padjusted = 0.004; WM: 0.88 ± 7.45, Padjusted = 0.002) after adjusting demographic factors. In patients with PD, GM-PAD was negatively correlated with MMSE (Padjusted = 0.011) and MoCA (Padjusted = 0.013) and positively correlated with UPDRS Part II (Padjusted = 0.036). WM-PAD was negatively correlated with logical memory of immediate and delayed recalls (Padjusted = 0.003 and Padjusted < 0.001). Also, altered brain regions in PD-CI were identified and significantly correlated with brain age measures, implicating the neuroanatomical underpinning of neurodegeneration in PD-CI. Moreover, the brain age metrics can improve the classification between PD-CI and PD-NCI. The findings suggest that patients with PD-CI had advanced brain aging that was associated with poor cognitive functions. The identified neuroimaging features and brain age measures can serve as potential biomarkers of PD-CI.
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Affiliation(s)
- Chang-Le Chen
- Institute of Medical Device and Imaging, National Taiwan University College of Medicine, Taipei, Taiwan
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, USA
| | - Shao-Ying Cheng
- Department of Neurology, National Taiwan University Hospital Bei-Hu Branch, Taipei, Taiwan
| | | | - Wen-Chao Wu
- Institute of Medical Device and Imaging, National Taiwan University College of Medicine, Taipei, Taiwan
| | | | - Chun-Hwei Tai
- Department of Neurology, National Taiwan University Hospital, Taipei, Taiwan
| | - Wen-Yih Isaac Tseng
- Institute of Medical Device and Imaging, National Taiwan University College of Medicine, Taipei, Taiwan.
- Acroviz Inc, Taipei, Taiwan.
- Department of Medical Imaging, National Taiwan University Hospital, Taipei, Taiwan.
| | - Ming-Che Kuo
- Department of Neurology, National Taiwan University Hospital, Taipei, Taiwan.
- Department of Medicine, National Taiwan University Cancer Center, Taipei, Taiwan.
- Neurobiology and Cognitive Science Center, National Taiwan University, Taipei, Taiwan.
| | - Ruey-Meei Wu
- Department of Neurology, National Taiwan University Hospital, Taipei, Taiwan
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Torbati ME, Minhas DS, Laymon CM, Maillard P, Wilson JD, Chen CL, Crainiceanu CM, DeCarli CS, Hwang SJ, Tudorascu DL. MISPEL: A supervised deep learning harmonization method for multi-scanner neuroimaging data. Med Image Anal 2023; 89:102926. [PMID: 37595405 PMCID: PMC10529705 DOI: 10.1016/j.media.2023.102926] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2022] [Revised: 06/06/2023] [Accepted: 08/03/2023] [Indexed: 08/20/2023]
Abstract
Large-scale data obtained from aggregation of already collected multi-site neuroimaging datasets has brought benefits such as higher statistical power, reliability, and robustness to the studies. Despite these promises from growth in sample size, substantial technical variability stemming from differences in scanner specifications exists in the aggregated data and could inadvertently bias any downstream analyses on it. Such a challenge calls for data normalization and/or harmonization frameworks, in addition to comprehensive criteria to estimate the scanner-related variability and evaluate the harmonization frameworks. In this study, we propose MISPEL (Multi-scanner Image harmonization via Structure Preserving Embedding Learning), a supervised multi-scanner harmonization method that is naturally extendable to more than two scanners. We also designed a set of criteria to investigate the scanner-related technical variability and evaluate the harmonization techniques. As an essential requirement of our criteria, we introduced a multi-scanner matched dataset of 3T T1 images across four scanners, which, to the best of our knowledge is one of the few datasets of this kind. We also investigated our evaluations using two popular segmentation frameworks: FSL and segmentation in statistical parametric mapping (SPM). Lastly, we compared MISPEL to popular methods of normalization and harmonization, namely White Stripe, RAVEL, and CALAMITI. MISPEL outperformed these methods and is promising for many other neuroimaging modalities.
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Affiliation(s)
| | - Davneet S Minhas
- Department of Radiology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA
| | - Charles M Laymon
- Department of Radiology, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA; Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Pauline Maillard
- Department of Neurology, University of California Davis, Davis, CA 95816, USA
| | - James D Wilson
- Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA
| | - Chang-Le Chen
- Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA 15213, USA
| | - Ciprian M Crainiceanu
- Department of Biostatistics, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD 21205, USA
| | - Charles S DeCarli
- Department of Neurology, University of California Davis, Davis, CA 95816, USA
| | - Seong Jae Hwang
- Department of Artificial Intelligence, Yonsei University, Seoul, South Korea
| | - Dana L Tudorascu
- Department of Psychiatry, University of Pittsburgh, Pittsburgh, PA 15213, USA; Department of Psychiatry, University of Pittsburgh School of Medicine, Pittsburgh, PA 15213, USA; Department of Biostatistics, University of Pittsburgh, Pittsburgh, PA 15213, USA.
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Kadian A, Manikandan V, Dev K, Kumar V, Yang CJ, Lin BH, Chen CL, Dong CL, Asokan K, Annapoorni S. Probing size-dependent defects in zinc oxide using synchrotron techniques: impact on photocatalytic efficiency. Phys Chem Chem Phys 2023; 25:25639-25653. [PMID: 37721171 DOI: 10.1039/d3cp02923a] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 09/19/2023]
Abstract
In the present study, synchrotron-based X-ray diffraction (XRD), X-ray absorption spectroscopy (XAS) and X-ray excited optical luminescence (XEOL) have been used to investigate the induced defect states in metal oxide nanomaterials. Specifically, two synthesis approaches have been followed to develop unique nano-sized peanut-shaped (N-ZnO) nanostructures and micron-sized hexagonal rods (M-ZnO). XANES analysis at the Zn K-edge revealed the presence of defect states with a divalent oxidation state of zinc (Zn2+) in a tetrahedral structure. Furthermore, XAS measurements performed at the Zn L3,2-edge and O K-edge confirm higher oxygen-related defects in M-ZnO, while N-ZnO appeared to have a higher concentration of surface defects due to size confinement. Moreover, the in-line XEOL and time dependent-XEOL measurements exposed the radiative excitonic recombination phenomena occurring in the band-tailing region as a function of absorption length, X-ray energy excitation, and time. Based on the chronology developed in the defect state improvement, a possible energy band diagram is proposed to accurately locate the defect states in the two systems. Furthermore, the increased absorption intensity at the Zn L3,2-edge and the O K-edge under the UV lamp suggests delayed recombination of electrons and holes, highlighting their potential use as photo catalysts. The photocatalytic activity degrading the rhodamine B dye established M-ZnO as a superior catalyst with a rapid degradation rate and significant mineralization. Overall, this work provides valuable insights into ZnO defect states and provides a foundation for efficient advanced materials for environmental or other optoelectronic applications.
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Affiliation(s)
- Ankit Kadian
- Department of Physics and Astrophysics, University of Delhi, Delhi - 110007, India.
| | - V Manikandan
- Department of Physics and Astrophysics, University of Delhi, Delhi - 110007, India.
| | - Kapil Dev
- Department of Physics and Astrophysics, University of Delhi, Delhi - 110007, India.
| | - Vishnu Kumar
- New Chemistry Unit, JNCASR, Jakkur, Bengaluru, Karnataka, 560064, India
| | - Cheng-Jie Yang
- Department of Physics, Tamkang University, Tamsui 251301, Taiwan
| | - Bi-Hsuan Lin
- National Synchrotron Radiation Research Center (NSRRC), Hsinchu 30076, Taiwan
| | - C L Chen
- National Synchrotron Radiation Research Center (NSRRC), Hsinchu 30076, Taiwan
| | - C L Dong
- Department of Physics, Tamkang University, Tamsui 251301, Taiwan
| | - K Asokan
- Department of Physics & Centre for Interdisciplinary Research, University of Petroleum and Energy Studies (UPES), Dehradun, Uttarakhand, 248007, India
| | - S Annapoorni
- Department of Physics and Astrophysics, University of Delhi, Delhi - 110007, India.
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Chiang HL, Tseng WYI, Tseng WL, Tung YH, Hsu YC, Chen CL, Gau SSF. Atypical development in white matter microstructures in ADHD: A longitudinal diffusion imaging study. Asian J Psychiatr 2023; 79:103358. [PMID: 36481569 DOI: 10.1016/j.ajp.2022.103358] [Citation(s) in RCA: 4] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/21/2022] [Revised: 11/13/2022] [Accepted: 11/25/2022] [Indexed: 12/03/2022]
Abstract
BACKGROUND In cross-sectional studies, alterations in white matter microstructure are evident in children with attention-deficit/hyperactivity disorder (ADHD) but not so prominent in adults with ADHD compared to typically-developing controls (TDC). Moreover, the developmental trajectories of white matter microstructures in ADHD are unclear, given the limited longitudinal imaging studies that characterize developmental changes in ADHD vs. TDC. METHODS This longitudinal study acquired diffusion spectrum imaging (DSI) at two time points. The sample included 55 participants with ADHD and 61 TDC. The enrollment/first DSI age ranged from 7 to 18 years, with a five-year mean follow-up time. We examined time-by-diagnosis interaction on the generalized fractional anisotropy (GFA) of 45 white matter tracts, adjusting for confounding factors and correcting for multiple comparisons. We also tested whether the longitudinal changes of microstructures were associated with ADHD symptoms and attention performance in a computerized continuous performance test. RESULTS Participants with ADHD showed more rapid development of GFA in the arcuate fasciculus, superior longitudinal fasciculus, frontal aslant tract, cingulum, inferior fronto-occipital fasciculus (IFOF), frontostriatal tract connecting the prefrontal cortex (FS-PFC), thalamic radiation, corticospinal tract, and corpus callosum. Within participants with ADHD, more rapid GFA increases in cingulum and FS-PFC were associated with slower decreases in inattention symptoms. In addition, in all participants, more rapid GFA increases in cingulum and IFOF were associated with greater improvement in attention performance. CONCLUSION Our findings suggest atypical developmental trajectories of white matter tracts in ADHD, characterized by normalization and possible compensatory neuroplastic processes with age from childhood to early adulthood.
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Affiliation(s)
- Huey-Ling Chiang
- Department of Psychiatry, National Taiwan University Hospital and College of Medicine, Taipei, Taiwan; Department of Psychiatry, Far Eastern Memorial Hospital, New Taipei City, Taiwan
| | - Wen-Yih Isaac Tseng
- Institute of Medical Device and Imaging, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Wan-Ling Tseng
- Yale Child Study Center, Yale School of Medicine, New Haven, CT, USA
| | - Yu-Hung Tung
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Yung-Chin Hsu
- Institute of Medical Device and Imaging, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Chang-Le Chen
- Institute of Medical Device and Imaging, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Susan Shur-Fen Gau
- Department of Psychiatry, National Taiwan University Hospital and College of Medicine, Taipei, Taiwan; Graduate Institute of Clinical Medicine, and Graduate Institute of Brain and Mind Sciences, National Taiwan University College of Medicine, Taipei, Taiwan.
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Chien YL, Lin HY, Tung YH, Hwang TJ, Chen CL, Wu CS, Shang CY, Hwu HG, Tseng WYI, Liu CM, Gau SSF. Neurodevelopmental model of schizophrenia revisited: similarity in individual deviation and idiosyncrasy from the normative model of whole-brain white matter tracts and shared brain-cognition covariation with ADHD and ASD. Mol Psychiatry 2022; 27:3262-3271. [PMID: 35794186 DOI: 10.1038/s41380-022-01636-1] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/23/2021] [Revised: 05/08/2022] [Accepted: 05/18/2022] [Indexed: 11/09/2022]
Abstract
The neurodevelopmental model of schizophrenia is supported by multi-level impairments shared among schizophrenia and neurodevelopmental disorders. Despite schizophrenia and typical neurodevelopmental disorders, i.e., autism spectrum disorder (ASD) and attention-deficit/hyperactivity disorder (ADHD), as disorders of brain dysconnectivity, no study has ever elucidated whether whole-brain white matter (WM) tracts integrity alterations overlap or diverge between these three disorders. Moreover, whether the linked dimensions of cognition and brain metrics per the Research Domain Criteria framework cut across diagnostic boundaries remains unknown. We aimed to map deviations from normative ranges of whole-brain major WM tracts for individual patients to investigate the similarity and differences among schizophrenia (281 patients subgrouped into the first-episode, subchronic and chronic phases), ASD (175 patients), and ADHD (279 patients). Sex-specific WM tract normative development was modeled from diffusion spectrum imaging of 626 typically developing controls (5-40 years). There were three significant findings. First, the patterns of deviation and idiosyncrasy of WM tracts were similar between schizophrenia and ADHD alongside ASD, particularly at the earlier stages of schizophrenia relative to chronic stages. Second, using the WM deviation patterns as features, schizophrenia cannot be separated from neurodevelopmental disorders in the unsupervised machine learning algorithm. Lastly, the canonical correlation analysis showed schizophrenia, ADHD, and ASD shared linked cognitive dimensions driven by WM deviations. Together, our results provide new insights into the neurodevelopmental facet of schizophrenia and its brain basis. Individual's WM deviations may contribute to diverse arrays of cognitive function along a continuum with phenotypic expressions from typical neurodevelopmental disorders to schizophrenia.
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Affiliation(s)
- Yi-Ling Chien
- Department of Psychiatry, National Taiwan University Hospital and College of Medicine, Taipei, Taiwan
| | - Hsiang-Yuan Lin
- Azrieli Adult Neurodevelopmental Centre and Adult Neurodevelopmental and Geriatric Psychiatry Division, Centre for Addiction and Mental Health, Department of Psychiatry, Temerty Faculty of Medicine, University of Toronto, Toronto, ON, Canada
| | - Yu-Hung Tung
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Tzung-Jeng Hwang
- Department of Psychiatry, National Taiwan University Hospital and College of Medicine, Taipei, Taiwan.,Graduate Institute of Brain and Mind Sciences, National Taiwan University College of Medicine, Taipei, Taiwan.,Neurobiology & Cognitive Science Center, National Taiwan University, Taipei, Taiwan
| | - Chang-Le Chen
- Institute of Medical Device and Imaging, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Chi-Shin Wu
- Department of Psychiatry, National Taiwan University Hospital and College of Medicine, Taipei, Taiwan
| | - Chi-Yung Shang
- Department of Psychiatry, National Taiwan University Hospital and College of Medicine, Taipei, Taiwan
| | - Hai-Gwo Hwu
- Department of Psychiatry, National Taiwan University Hospital and College of Medicine, Taipei, Taiwan
| | - Wen-Yih Isaac Tseng
- Graduate Institute of Brain and Mind Sciences, National Taiwan University College of Medicine, Taipei, Taiwan. .,Neurobiology & Cognitive Science Center, National Taiwan University, Taipei, Taiwan. .,Institute of Medical Device and Imaging, National Taiwan University College of Medicine, Taipei, Taiwan.
| | - Chih-Min Liu
- Department of Psychiatry, National Taiwan University Hospital and College of Medicine, Taipei, Taiwan.
| | - Susan Shur-Fen Gau
- Department of Psychiatry, National Taiwan University Hospital and College of Medicine, Taipei, Taiwan. .,Graduate Institute of Brain and Mind Sciences, National Taiwan University College of Medicine, Taipei, Taiwan. .,Neurobiology & Cognitive Science Center, National Taiwan University, Taipei, Taiwan.
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Chen CL, Hwang TJ, Tung YH, Yang LY, Hsu YC, Liu CM, Lin YT, Hsieh MH, Liu CC, Chien YL, Hwu HG, Tseng WYI. Detection of advanced brain aging in schizophrenia and its structural underpinning by using normative brain age metrics. Neuroimage Clin 2022; 34:103003. [PMID: 35413648 PMCID: PMC9018160 DOI: 10.1016/j.nicl.2022.103003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/11/2021] [Revised: 03/24/2022] [Accepted: 04/04/2022] [Indexed: 11/28/2022]
Abstract
Novel metrics are proposed using the brain age paradigm with normative modeling. Normative brain age is validated to reveal advanced aging in schizophrenia. Men with schizophrenia have older brain age than women with the disorder. The brain age in white matter is positively associated with the negative symptom. The precuneus and uncinate fasciculus are markedly related to the advanced aging.
Conceptualizing mental disorders as deviations from normative functioning provides a statistical perspective for understanding the individual heterogeneity underlying psychiatric disorders. To broaden the understanding of the idiosyncrasy of brain aging in schizophrenia, we introduced an imaging-derived brain age paradigm combined with normative modeling as novel brain age metrics. We constructed brain age models based on GM, WM, and their combination (multimodality) features of 482 normal participants. The normalized predicted age difference (nPAD) was estimated in 147 individuals with schizophrenia and their 130 demographically matched controls through normative models of brain age metrics and compared between the groups. Regression analyses were also performed to investigate the associations of nPAD with illness duration, onset age, symptom severity, and intelligence quotient. Finally, regional contributions to advanced brain aging in schizophrenia were investigated. The results showed that the individuals exhibited significantly higher nPAD (P < 0.001), indicating advanced normative brain age than the normal controls in GM, WM, and multimodality models. The nPAD measure based on WM was positively associated with the negative symptom score (P = 0.009), and negatively associated with the intelligence quotient (P = 0.039) and onset age (P = 0.006). The imaging features that contributed to nPAD mostly involved the prefrontal, temporal, and parietal lobes, especially the precuneus and uncinate fasciculus. This study demonstrates that normative brain age metrics could detect advanced brain aging and associated clinical and neuroanatomical features in schizophrenia. The proposed nPAD measures may be useful to investigate aberrant brain aging in mental disorders and their brain-phenotype relationships.
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Affiliation(s)
- Chang-Le Chen
- Institute of Medical Device and Imaging, College of Medicine, National Taiwan University, Taipei, Taiwan; Department of Bioengineering, University of Pittsburgh, Pittsburgh, PA, USA
| | - Tzung-Jeng Hwang
- Department of Psychiatry, National Taiwan University Hospital, Taipei, Taiwan
| | - Yu-Hung Tung
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Li-Ying Yang
- Institute of Medical Device and Imaging, College of Medicine, National Taiwan University, Taipei, Taiwan
| | | | - Chih-Min Liu
- Department of Psychiatry, National Taiwan University Hospital, Taipei, Taiwan
| | - Yi-Tin Lin
- Department of Psychiatry, National Taiwan University Hospital, Taipei, Taiwan
| | - Ming-Hsien Hsieh
- Department of Psychiatry, National Taiwan University Hospital, Taipei, Taiwan
| | - Chen-Chung Liu
- Department of Psychiatry, National Taiwan University Hospital, Taipei, Taiwan
| | - Yi-Ling Chien
- Department of Psychiatry, National Taiwan University Hospital, Taipei, Taiwan
| | - Hai-Gwo Hwu
- Department of Psychiatry, National Taiwan University Hospital, Taipei, Taiwan
| | - Wen-Yih Isaac Tseng
- Institute of Medical Device and Imaging, College of Medicine, National Taiwan University, Taipei, Taiwan; AcroViz Inc., Taipei, Taiwan; Department of Medical Imaging, National Taiwan University Hospital, Taipei, Taiwan; Molecular Imaging Center, National Taiwan University, Taipei, Taiwan.
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Wang N, Yao Y, Chen CL, Wang ZC, Liu Z. [Analysis of the associations of chemokine receptors expression on circulating Tfh2 and Th2 cells with sIgE level and disease severity in patients with AR]. Zhonghua Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2022; 57:418-424. [PMID: 35527432 DOI: 10.3760/cma.j.cn115330-20200206-00047] [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: 06/14/2023]
Abstract
Objective: To clarify the chemotactic characteristics of type 2 helper T cells (Th2 cells) and type 2 follicular helper T cells (Tfh2 cells) in peripheral blood of patients with allergic rhinitis (AR), and to explore the associations between the chemokine receptors expression and the levels of antigen-specific IgE (sIgE) and the severity of the disease. Methods: The peripheral blood mononuclear cells of 41 patients with AR (20 males and 21 females, aged 35.0 (24.5, 47.0) years) and 42 healthy controls (24 males and 18 females, aged 35.0 (24.8, 46.5) years) treated in Tongji Hospital Affiliated to Tongji Medical College of Huazhong University of Science and Technology from April 2017 to February 2018 were isolated. The expressions of chemokine receptor (CCR)2, CCR3, CCR4, CCR5, CCR7, CCR8, chemokine C-X3-C-motif receptor 1 (CX3CR1) and C-X-C motif receptor 4 (CXCR4) in Th2 and Tfh2 cells were explored by fluorescence activated cell sorting (FACs). The relationship between the expression of these chemokine receptors in Th2 cells and Tfh2 cells and the levels of serum sIgE and the scores of visual analogue scale (VAS) was analyzed. Graphpad prism 7.0 software was used for statistical analysis. Results: The significant differences in chemotactic characteristics between Th2 cells and Tfh2 cells in the control group were found: Th2 cells highly expressed chemokine receptors CCR2, CCR3, CCR5, CCR8 and CX3CR1, while Tfh2 cells highly expressed immune cell homing chemokine receptors CCR7 and CXCR4. AR patients, compared to the control, expressed higher levels of CCR2, CCR5 and CX3CR1 on peripheral Th2 cells(all P<0.01). At the same time, the proportion of CCR2+and CCR5+Th2 cells was positively correlated with VAS score (r value was 0.58 and 0.61, respectively, both P<0.01). In AR patients, higher expression levels of CCR7 on Tfh2 cells were detected (P<0.01), and the proportion of CCR7+Tfh2 cells was positively correlated with the level of serum sIgE (r=0.51, P<0.01). Conclusion: The percentage of CCR2+ and CCR5+ Th2 cells in peripheral of AR patients can reflect the severity of AR to some extent, while the percentage of CCR7+ Tfh2 cells is positively correlated with the level of serum sIgE.
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Affiliation(s)
- N Wang
- Department of Otorhinolaryngology Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Y Yao
- Department of Otorhinolaryngology Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - C L Chen
- Department of Otorhinolaryngology Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Z C Wang
- Department of Otorhinolaryngology Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
| | - Z Liu
- Department of Otorhinolaryngology Head and Neck Surgery, Tongji Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430030, China
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Chen CL, Cai AP, Nie ZQ, Huang YQ, Feng YQ. Systolic Blood Pressure and Mortality in Community-Dwelling Older Adults: The Role of Frailty. J Nutr Health Aging 2022; 26:962-970. [PMID: 36259585 DOI: 10.1007/s12603-022-1850-4] [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] [Indexed: 11/30/2022]
Abstract
OBJECTIVES To investigate whether frailty modifies the association of systolic blood pressure (SBP) with cardiovascular mortality and all-cause mortality in community-dwelling older adults. DESIGN A prospective cohort study. SETTING A population-based study of nationally representative older Chinese adults in a community setting. PARTICIPANTS This study included participants aged 65 years or older from the Chinese Longitudinal Healthy Longevity Survey 2002-2014 and followed up to 2018. MEASUREMENTS Participants were divided into two groups according to a frailty index based on the accumulation of a 44-items deficits model. The association between SBP and mortality was analyzed using multivariable-adjusted Cox proportional hazards models. RESULTS Among 18,503 participants included, the mean age was 87.2 years and the overall median follow-up time was 42.7 months. We identified 7808 (42.2%) frail participants (mean frailty index=0.33), in which 7533 (96.5%) died during the follow-up. Effect modification by frailty was detected (P for interaction=0.032). Among frail participants, a U-shaped association was found with hazard ratios of 1.16 (95% CI, 1.02-1.32) for SBP < 100 mmHg, and 1.11 (95% CI, 1.00-1.24) for SBP ≥ 150 mmHg compared with SBP 120-130 mmHg. For non-frail older adults, a tendency toward higher risk among those with SBP ≥ 130 mmHg was observed. The analyses towards cardiovascular mortality showed similar results. CONCLUSION Our results suggest the presence of effect modification by frailty indicating a possible negative effect for elevated SBP in non-frail older adults and a U-shaped relationship of SBP in frail older adults with respect to mortality even after adjusting for diastolic blood pressure.
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Affiliation(s)
- C L Chen
- Professor Yingqing Feng or Professor Yuqing Huang, Department of Cardiology, Guangdong Cardiovascular Institute, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, Guangdong, China. 510080, (Y.Q. Feng) and (Y.Q. Huang). Tel: 86-20-83827812. Fax: 86-20-83827812
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Langnas EM, Matthay ZA, Lin A, Harbell MW, Croci R, Rodriguez-Monguio R, Chen CL. Enhanced recovery after surgery protocol and postoperative opioid prescribing for cesarean delivery: an interrupted time series analysis. Perioper Med (Lond) 2021; 10:38. [PMID: 34775985 PMCID: PMC8591895 DOI: 10.1186/s13741-021-00209-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/26/2021] [Accepted: 07/18/2021] [Indexed: 11/10/2022] Open
Abstract
INTRODUCTION Enhanced recovery after surgery (ERAS) pathways have emerged as a promising strategy to reduce postoperative opioid use and decrease the risk of developing new persistent opioid use in surgical patients. However, the association between ERAS implementation and discharge opioid prescribing practices is unclear. STUDY DESIGN We conducted a retrospective observational quasi-experimental study of opioid-naïve patients aged 18+ undergoing cesarean delivery between February 2015 and December 2019 at a large academic center. An interrupted time series analysis (ITSA) was used to model the changes in pain medication prescribing associated with the implementation of ERAS to account for pre-existing temporal trends. RESULTS Among the 1473 patients (out of 2249 total) who underwent cesarean delivery after ERAS implementation, 80.72% received a discharge opioid prescription vs. 95.36% at baseline. Pre-ERAS daily oral morphine equivalents (OME) on the discharge prescription decreased by 0.48 OME each month (p<0.01). There was a level shift of 35 more OME prescribed (p<0.01), followed by a monthly decrease of 1.4 OMEs per month after ERAS implementation (p<0.01). Among those who received a prescription, 61.35% received a total daily dose greater than 90 OME compared to 11.35% pre-implementation (p<0.01), while prescriptions with a total daily dose less than 50 OME decreased from 79.86 to 25.85% after ERAS implementation(p<0.01). CONCLUSION Although ERAS implementation reduced the overall proportion of patients receiving a discharge opioid prescription after cesarean delivery, for the subset of patients receiving an opioid prescription, ERAS implementation may have inadvertently increased the prescribing of daily doses greater than 90 OME. This finding highlights the importance of early and continued evaluation after new policies are implemented.
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Affiliation(s)
- E M Langnas
- Department of Anesthesia and Perioperative Care, University of California, San Francisco, 513 Parnassus Ave, S455, San Francisco, CA, 94143, USA.
| | - Z A Matthay
- Department of Surgery, University of California, San Francisco, San Francisco, USA
| | - A Lin
- UCSF School of Medicine, University of California, San Francisco, San Francisco, USA
| | - M W Harbell
- Department of Anesthesia and Perioperative Care, University of California, San Francisco, 513 Parnassus Ave, S455, San Francisco, CA, 94143, USA.,Department of Anesthesiology and Perioperative Medicine, Mayo Clinic, 5777 E Mayo Blvd, Phoenix, AZ, 85054, USA
| | - R Croci
- UCSF Health Informatics, University of California, San Francisco, San Francisco, USA
| | - R Rodriguez-Monguio
- Department of Clinical Pharmacy, University of California, San Francisco, San Francisco, USA.,Medication Outcomes Center, University of California, San Francisco, San Francisco, USA.,Philip R. Lee Institute for Health Policy Studies at the University of California, San Francisco, San Francisco, USA
| | - C L Chen
- Department of Anesthesia and Perioperative Care, University of California, San Francisco, 513 Parnassus Ave, S455, San Francisco, CA, 94143, USA.,Philip R. Lee Institute for Health Policy Studies at the University of California, San Francisco, San Francisco, USA
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10
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Chen PY, Chen CL, Tseng HM, Hsu YC, Huang CWC, Chan WP, Tseng WYI. Differential Associations of White Matter Brain Age With Language-Related Mechanisms in Word-Finding Ability Across the Adult Lifespan. Front Aging Neurosci 2021; 13:701565. [PMID: 34539378 PMCID: PMC8446673 DOI: 10.3389/fnagi.2021.701565] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/28/2021] [Accepted: 07/30/2021] [Indexed: 12/02/2022] Open
Abstract
Research on cognitive aging has established that word-finding ability declines progressively in late adulthood, whereas semantic mechanism in the language system is relatively stable. The aim of the present study was to investigate the associations of word-finding ability and language-related components with brain aging status, which was quantified by using the brain age paradigm. A total of 616 healthy participants aged 18–88 years from the Cambridge Centre for Ageing and Neuroscience databank were recruited. The picture-naming task was used to test the participants’ language-related word retrieval ability through word-finding and word-generation processes. The naming response time (RT) and accuracy were measured under a baseline condition and two priming conditions, namely phonological and semantic priming. To estimate brain age, we established a brain age prediction model based on white matter (WM) features and estimated the modality-specific predicted age difference (PAD). Mass partial correlation analyses were performed to test the associations of WM-PAD with the cognitive performance measures under the baseline and two priming conditions. We observed that the domain-specific language WM-PAD and domain-general WM-PAD were significantly correlated with general word-finding ability. The phonological mechanism, not the semantic mechanism, in word-finding ability was significantly correlated with the domain-specific WM-PAD. In contrast, all behavioral measures of the conditions in the picture priming task were significantly associated with chronological age. The results suggest that chronological aging and WM aging have differential effects on language-related word retrieval functions, and support that cognitive alterations in word-finding functions involve not only the domain-specific processing within the frontotemporal language network but also the domain-general processing of executive functions in the fronto-parieto-occipital (or multi-demand) network. The findings further indicate that the phonological aspect of word retrieval ability declines as cerebral WM ages, whereas the semantic aspect is relatively resilient or unrelated to WM aging.
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Affiliation(s)
- Pin-Yu Chen
- Molecular Imaging Centre, National Taiwan University, Taipei, Taiwan
| | - Chang-Le Chen
- Molecular Imaging Centre, National Taiwan University, Taipei, Taiwan
| | - Hui-Ming Tseng
- Institute of Medical Device and Imaging, National Taiwan University College of Medicine, Taipei, Taiwan
| | | | - Chi-Wen Christina Huang
- Department of Radiology, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan.,Department of Radiology, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Wing P Chan
- Department of Radiology, Wan Fang Hospital, Taipei Medical University, Taipei, Taiwan.,Department of Radiology, College of Medicine, Taipei Medical University, Taipei, Taiwan
| | - Wen-Yih I Tseng
- Molecular Imaging Centre, National Taiwan University, Taipei, Taiwan.,Institute of Medical Device and Imaging, National Taiwan University College of Medicine, Taipei, Taiwan
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11
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Tung YH, Lin HY, Chen CL, Shang CY, Yang LY, Hsu YC, Tseng WYI, Gau SSF. Whole Brain White Matter Tract Deviation and Idiosyncrasy From Normative Development in Autism and ADHD and Unaffected Siblings Link With Dimensions of Psychopathology and Cognition. Am J Psychiatry 2021; 178:730-743. [PMID: 33726525 DOI: 10.1176/appi.ajp.2020.20070999] [Citation(s) in RCA: 26] [Impact Index Per Article: 8.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
OBJECTIVE The heterogeneity of autism spectrum disorder (ASD) and attention deficit hyperactivity disorder (ADHD) preclude definitive identification of neurobiomarkers and biological risks. High clinical overlap suggests multifaceted circuit-level alterations across diagnoses, which remains elusive. This study investigated whether individuals with ADHD or ASD and their unaffected siblings constitute a spectrum of neurodevelopmental conditions in terms of white matter etiology. METHODS Sex-specific white matter tract normative development was modeled from diffusion MRI of 626 typically developing control subjects (ages 5-40 years; 376 of them male). Individualized metrics estimating white matter tract deviation from the age norm were derived for 279 probands with ADHD, 175 probands with ASD, and their unaffected siblings (ADHD, N=121; ASD, N=72). RESULTS ASD and ADHD shared diffuse white matter tract deviations in the commissure and association tracts (rho=0.54; p<0.001), while prefrontal corpus callosum deviated more remarkably in ASD (effect size=-0.36; p<0.001). Highly correlated deviance patterns between probands and unaffected siblings were found in both ASD (rho=0.69; p<0.001) and ADHD (rho=0.51; p<0.001), but only unaffected sisters of ASD probands showed a potential endophenotype in long-range association fibers and projection fibers connecting prefrontal regions. ADHD and ASD shared significant white matter tract idiosyncrasy (rho=0.55; p<0.001), particularly in tracts connecting prefrontal regions, not identified in either sibling group. Canonical correlation analysis identified multiple dimensions of psychopathology/cognition across categorical entities; autistic, visual memory, intelligence/planning/inhibition, nonverbal-intelligence/attention, working memory/attention, and set-shifting/response-variability were associated with distinct sets of white matter tract deviations. CONCLUSIONS When conceptualizing neurodevelopmental disorders as white matter tract deviations from normative patterns, ASD and ADHD are more alike than different. The modest white matter tract alterations in siblings suggest potential endophenotypes in these at-risk populations. This study further delineates brain-driven dimensions of psychopathology/cognition, which may help clarify within-diagnosis heterogeneity and high between-diagnosis co-occurrence.
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Affiliation(s)
- Yu-Hung Tung
- School of Medicine, National Taiwan University College of Medicine, and Department of Medical Education, National Taiwan University Hospital, Taipei (Tung); Department of Psychiatry, National Taiwan University Hospital and College of Medicine, Taipei (Tung, Lin, Shang, Gau); Azrieli Adult Neurodevelopmental Centre and Adult Neurodevelopmental and Geriatric Psychiatry Division, Centre for Addiction and Mental Health, Toronto (Lin); Department of Psychiatry, University of Toronto, Toronto (Lin); Institute of Medical Device and Imaging, National Taiwan University College of Medicine, Taipei (Chen, Yang, Hsu, Tseng); Graduate Institute of Brain and Mind Sciences, National Taiwan University College of Medicine, Taipei (Tseng, Gau); Molecular Imaging Center, National Taiwan University, Taipei (Tseng)
| | - Hsiang-Yuan Lin
- School of Medicine, National Taiwan University College of Medicine, and Department of Medical Education, National Taiwan University Hospital, Taipei (Tung); Department of Psychiatry, National Taiwan University Hospital and College of Medicine, Taipei (Tung, Lin, Shang, Gau); Azrieli Adult Neurodevelopmental Centre and Adult Neurodevelopmental and Geriatric Psychiatry Division, Centre for Addiction and Mental Health, Toronto (Lin); Department of Psychiatry, University of Toronto, Toronto (Lin); Institute of Medical Device and Imaging, National Taiwan University College of Medicine, Taipei (Chen, Yang, Hsu, Tseng); Graduate Institute of Brain and Mind Sciences, National Taiwan University College of Medicine, Taipei (Tseng, Gau); Molecular Imaging Center, National Taiwan University, Taipei (Tseng)
| | - Chang-Le Chen
- School of Medicine, National Taiwan University College of Medicine, and Department of Medical Education, National Taiwan University Hospital, Taipei (Tung); Department of Psychiatry, National Taiwan University Hospital and College of Medicine, Taipei (Tung, Lin, Shang, Gau); Azrieli Adult Neurodevelopmental Centre and Adult Neurodevelopmental and Geriatric Psychiatry Division, Centre for Addiction and Mental Health, Toronto (Lin); Department of Psychiatry, University of Toronto, Toronto (Lin); Institute of Medical Device and Imaging, National Taiwan University College of Medicine, Taipei (Chen, Yang, Hsu, Tseng); Graduate Institute of Brain and Mind Sciences, National Taiwan University College of Medicine, Taipei (Tseng, Gau); Molecular Imaging Center, National Taiwan University, Taipei (Tseng)
| | - Chi-Yung Shang
- School of Medicine, National Taiwan University College of Medicine, and Department of Medical Education, National Taiwan University Hospital, Taipei (Tung); Department of Psychiatry, National Taiwan University Hospital and College of Medicine, Taipei (Tung, Lin, Shang, Gau); Azrieli Adult Neurodevelopmental Centre and Adult Neurodevelopmental and Geriatric Psychiatry Division, Centre for Addiction and Mental Health, Toronto (Lin); Department of Psychiatry, University of Toronto, Toronto (Lin); Institute of Medical Device and Imaging, National Taiwan University College of Medicine, Taipei (Chen, Yang, Hsu, Tseng); Graduate Institute of Brain and Mind Sciences, National Taiwan University College of Medicine, Taipei (Tseng, Gau); Molecular Imaging Center, National Taiwan University, Taipei (Tseng)
| | - Li-Ying Yang
- School of Medicine, National Taiwan University College of Medicine, and Department of Medical Education, National Taiwan University Hospital, Taipei (Tung); Department of Psychiatry, National Taiwan University Hospital and College of Medicine, Taipei (Tung, Lin, Shang, Gau); Azrieli Adult Neurodevelopmental Centre and Adult Neurodevelopmental and Geriatric Psychiatry Division, Centre for Addiction and Mental Health, Toronto (Lin); Department of Psychiatry, University of Toronto, Toronto (Lin); Institute of Medical Device and Imaging, National Taiwan University College of Medicine, Taipei (Chen, Yang, Hsu, Tseng); Graduate Institute of Brain and Mind Sciences, National Taiwan University College of Medicine, Taipei (Tseng, Gau); Molecular Imaging Center, National Taiwan University, Taipei (Tseng)
| | - Yung-Chin Hsu
- School of Medicine, National Taiwan University College of Medicine, and Department of Medical Education, National Taiwan University Hospital, Taipei (Tung); Department of Psychiatry, National Taiwan University Hospital and College of Medicine, Taipei (Tung, Lin, Shang, Gau); Azrieli Adult Neurodevelopmental Centre and Adult Neurodevelopmental and Geriatric Psychiatry Division, Centre for Addiction and Mental Health, Toronto (Lin); Department of Psychiatry, University of Toronto, Toronto (Lin); Institute of Medical Device and Imaging, National Taiwan University College of Medicine, Taipei (Chen, Yang, Hsu, Tseng); Graduate Institute of Brain and Mind Sciences, National Taiwan University College of Medicine, Taipei (Tseng, Gau); Molecular Imaging Center, National Taiwan University, Taipei (Tseng)
| | - Wen-Yih Isaac Tseng
- School of Medicine, National Taiwan University College of Medicine, and Department of Medical Education, National Taiwan University Hospital, Taipei (Tung); Department of Psychiatry, National Taiwan University Hospital and College of Medicine, Taipei (Tung, Lin, Shang, Gau); Azrieli Adult Neurodevelopmental Centre and Adult Neurodevelopmental and Geriatric Psychiatry Division, Centre for Addiction and Mental Health, Toronto (Lin); Department of Psychiatry, University of Toronto, Toronto (Lin); Institute of Medical Device and Imaging, National Taiwan University College of Medicine, Taipei (Chen, Yang, Hsu, Tseng); Graduate Institute of Brain and Mind Sciences, National Taiwan University College of Medicine, Taipei (Tseng, Gau); Molecular Imaging Center, National Taiwan University, Taipei (Tseng)
| | - Susan Shur-Fen Gau
- School of Medicine, National Taiwan University College of Medicine, and Department of Medical Education, National Taiwan University Hospital, Taipei (Tung); Department of Psychiatry, National Taiwan University Hospital and College of Medicine, Taipei (Tung, Lin, Shang, Gau); Azrieli Adult Neurodevelopmental Centre and Adult Neurodevelopmental and Geriatric Psychiatry Division, Centre for Addiction and Mental Health, Toronto (Lin); Department of Psychiatry, University of Toronto, Toronto (Lin); Institute of Medical Device and Imaging, National Taiwan University College of Medicine, Taipei (Chen, Yang, Hsu, Tseng); Graduate Institute of Brain and Mind Sciences, National Taiwan University College of Medicine, Taipei (Tseng, Gau); Molecular Imaging Center, National Taiwan University, Taipei (Tseng)
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12
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Isaac Tseng WY, Hsu YC, Chen CL, Kang YJ, Kao TW, Chen PY, Waiter GD. Microstructural differences in white matter tracts across middle to late adulthood: a diffusion MRI study on 7167 UK Biobank participants. Neurobiol Aging 2020; 98:160-172. [PMID: 33290993 DOI: 10.1016/j.neurobiolaging.2020.10.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2019] [Revised: 09/23/2020] [Accepted: 10/08/2020] [Indexed: 12/21/2022]
Abstract
White matter fiber tracts demonstrate heterogeneous vulnerabilities to aging effects. Here, we estimated age-related differences in tract properties using UK Biobank diffusion magnetic resonance imaging data of 7167 47- to 76-year-old neurologically healthy people (3368 men and 3799 women). Tract properties in terms of generalized fractional anisotropy, axial diffusivity, radial diffusivity, and mean diffusivity were sampled on 76 fiber tracts; for each tract, age-related differences were estimated by fitting these indices against age in a linear model. This cross-sectional study demonstrated 4 age-difference patterns. The dominant pattern was lower generalized fractional anisotropy and higher axial diffusivity, radial diffusivity, and mean diffusivity with age, constituting 45 of 76 tracts, mostly involving the association, projection, and commissure fibers connecting the prefrontal lobe. The other 3 patterns constituted only 14 tracts, with atypical age differences in diffusion indices, and mainly involved parietal, occipital, and temporal cortices. By analyzing the large volume of diffusion magnetic resonance imaging data available from the UK Biobank, the study has provided a detailed description of heterogeneous age-related differences in tract properties over the whole brain which generally supports the myelodegeneration hypothesis.
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Affiliation(s)
- Wen-Yih Isaac Tseng
- Institute of Medical Device and Imaging, National Taiwan University College of Medicine, Taipei, Taiwan; Molecular Imaging Center, National Taiwan University, Taipei, Taiwan
| | | | - Chang-Le Chen
- Institute of Medical Device and Imaging, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Yun-Jing Kang
- Institute of Medical Device and Imaging, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Te-Wei Kao
- Institute of Medical Device and Imaging, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Pin-Yu Chen
- Institute of Medical Device and Imaging, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Gordon D Waiter
- Aberdeen Biomedical Imaging Centre, School of Medicine, Medical Sciences and Nutrition, University of Aberdeen, Aberdeen, UK.
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13
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Chen CL, Kang S, Chen BL, Yang Y, Guo JX, Hao M, Wang WL, Ji M, Sun LX, Wang L, Liang WT, Wang SG, Li WL, Fan HJ, Liu P, Lang JH. [Long-term oncological outcomes of laparoscopic versus abdominal surgery in stage Ⅰa1 (LVSI +)-Ⅰb1 cervical cancer patients with different tumor size: a big database in China]. Zhonghua Fu Chan Ke Za Zhi 2020; 55:589-599. [PMID: 32957747 DOI: 10.3760/cma.j.cn112141-20200515-00411] [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 compare the long-term oncological outcomes between laparoscopic and abdominal surgery in stage Ⅰa1 (lymph-vascular space invasion-positive, LVSI+)- Ⅰb1 cervical cancer patients with different tumor sizes. Methods: Based on the Big Database of Clinical Diagnosis and Treatment of Cervical Cancer in China (1538 project database), patients with stage Ⅰa1 (LVSI+)-Ⅰb1 cervical cancer who treated by laparoscopic or abdominal surgery were included. The 5-year overall survival (OS) and 5-year disease-free survival (DFS) between the two surgical approaches were compared under 1∶1 propensity score matching (PSM) in different tumor diameter stratification. Results: (1) A total of 4 891 patients with stage Ⅰa1 (LVSI+)-Ⅰb1 cervical cancer who underwent laparoscopy or laparotomy from January 1, 2009 to December 31, 2016 were included in the 1538 project database. Among them, 1 926 cases in the laparoscopic group and 2 965 cases in the abdominal group. There were no difference in 5-year OS and 5-year DFS between the two groups before matching. Cox multivariate analysis suggested that laparoscopic surgery was associated with lower 5-year DFS (HR=1.367, 95%CI: 1.105-1.690, P=0.004). After 1∶1 PSM matching, 1 864 patients were included in each group, and there was no difference in 5-year OS between the two groups (94.1% vs 95.4%, P=0.151). While, the inferior 5-year DFS was observed in the laparoscopic group (89.0% vs 92.3%, P=0.004). And the laparoscopic surgery was associated with lower 5-year DFS (HR=1.420, 95%CI: 1.109-1.818, P=0.006). (2) In stratification analysis of different tumor sizes, and there were no difference in 5-year OS and 5-year DFS between the laparoscopic group and abdominal group in tumor size ≤1 cm, >1-2 cm and >2-3 cm stratification (all P>0.05). Cox multivariate analysis showed that laparoscopic surgery were not related to 5-year OS and 5-year DFS (P>0.05). In the stratification of tumor size >3-4 cm, there was no difference in 5-year OS between the two groups (P>0.05). The 5-year DFS in the laparoscopic group was worse than that in the abdominal group (75.7% vs 85.8%, P=0.025). Cox multivariate analysis suggested that laparoscopic surgery was associated with lower 5-year DFS (HR=1.705, 95%CI: 1.088-2.674, P=0.020). Conclusions: For patients with stage Ⅰa1 (LVSI+)-Ⅰb1 cervical cancer, laparoscopic surgery is associated with lower 5-year DFS, and the adverse effect of laparoscopic surgery on oncology prognosis is mainly reflected in patients with tumor size >3-4 cm. For patients with tumor sizes ≤1 cm, >1-2 cm and >2-3 cm, there are no difference in oncological prognosis between the two surgical approaches.
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Affiliation(s)
- C L Chen
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - S Kang
- Department of Gynecology, Fourth Hospital, Hebei Medical University, Shijiazhuang 050011, China
| | - B L Chen
- Department of Gynecology, Xijing Hospital, Air Force Medical University, Xi'an 710032, China
| | - Y Yang
- Department of Obstetrics and Gynecology, Xinqiao Hospital, Army Medical University, Chongqing 400037, China
| | - J X Guo
- Department of Obstetrics and Gynecology, Daping Hospital, Army Medical University, Chongqing 400042, China
| | - M Hao
- Department of Obstetrics and Gynecology, the Second Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - W L Wang
- Department of Obstetrics and Gynecology, the Second Affiliated Hospital of Zhengzhou University, Zhengzhou 450014, China
| | - M Ji
- Department of Obstetrics and Gynecology, the First Affiliated Hospital of Zhengzhou University, Zhengzhou 450052, China
| | - L X Sun
- Department of Gynecology, Shanxi Cancer Hospital, Taiyuan 030013, China
| | - L Wang
- Department of Gynecology, Henan Cancer Hospital, Zhengzhou 450008, China
| | - W T Liang
- Department of Gynecology, Guizhou Provincial People's Hospital, Guiyang 550002, China
| | - S G Wang
- Department of Gynecology, Yantai Yuhuangding Hospital, Qingdao University, Yantai 264000, China
| | - W L Li
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - H J Fan
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - P Liu
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - J H Lang
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing 100730, China
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14
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Han PF, Zhang ZL, Chen CL, Han YC, Wei XC, Li PC. Comparison of primary arthrodesis versus open reduction with internal fixation for Lisfranc injuries: Systematic review and meta-analysis. J Postgrad Med 2020; 65:93-100. [PMID: 31036779 PMCID: PMC6515774 DOI: 10.4103/jpgm.jpgm_414_18] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/04/2022] Open
Abstract
Objective Multiple studies have compared primary arthrodesis versus open reduction with internal fixation (ORIF) for surgical treatment of fractures of the Lisfranc joint, but their results have been inconsistent. Therefore, the present systematic review and meta-analysis was performed to compare the clinical efficacy of arthrodesis versus ORIF for the treatment of Lisfranc injuries. Methods Through searching the Embase, PubMed, PMC, CINAHL, PQDT, and Cochrane Library databases (from July 1998 to July 2018), we identified five case-controlled trials and two randomized controlled trials that compared the clinical efficacy of primary arthrodesis and ORIF for treating Lisfranc injuries. The extracted data were analyzed using Review manager 5.3 software. Results Through comparisons of data for primary arthrodesis and ORIF groups, we found no significant differences in the anatomic reduction rate, revision surgery rate, and total rate of complications between the different treatment approaches. However, arthrodesis was associated with a significantly better American Orthopedic Foot and Ankle Society (AOFAS) score, return to duty rate, and visual analog scale score with a lower incidence of hardware removal compared with ORIF. Conclusions For the treatment for Lisfranc injuries, primary arthrodesis was superior to ORIF based on a higher AOFAS score, better return to duty rate, lower postoperative pain, and lower requirement for internal fixation removal. Further evidence from future randomized controlled trials with higher quality and larger sample sizes is needed to confirm these findings.
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Affiliation(s)
- P F Han
- Department of Orthopaedics, The Second Hospital of Shanxi Medical University, Shanxi Key Laboratory of Bone and Soft Tissue Injury Repair, Taiyuan, Shanxi, P.R. China
| | - Z L Zhang
- Department of Orthopaedics, The Second Hospital of Shanxi Medical University, Shanxi Key Laboratory of Bone and Soft Tissue Injury Repair, Taiyuan, Shanxi, P.R. China
| | - C L Chen
- Department of Orthopaedics, The Second Hospital of Shanxi Medical University, Shanxi Key Laboratory of Bone and Soft Tissue Injury Repair, Taiyuan, Shanxi, P.R. China
| | - Y C Han
- Department of Upper School, Subsidiary High School of Taiyuan Normal University, Taiyuan, Shanxi, P.R. China
| | - X C Wei
- Department of Orthopaedics, The Second Hospital of Shanxi Medical University, Shanxi Key Laboratory of Bone and Soft Tissue Injury Repair, Taiyuan, Shanxi, P.R. China
| | - P C Li
- Department of Orthopaedics, The Second Hospital of Shanxi Medical University, Shanxi Key Laboratory of Bone and Soft Tissue Injury Repair, Taiyuan, Shanxi, P.R. China
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15
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Yu M, Xiang Y, Ma XX, Xue FX, Feng LM, Wang DB, Huang XH, Zhang Y, Zhang GN, Cao DY, Chen CL, Chen J, Cheng WW, Cui ZM, Di W, Guo HY, Hu LN, Li CZ, Li XM, Liang ZQ, Liu AJ, Liu CD, Meng YG, Shen DH, Wan XP, Wang ZH, Xu L, Yang XS, Zhu GH, Lang JH. [Advices on standards of endometrial cancer screening]. Zhonghua Fu Chan Ke Za Zhi 2020; 55:307-311. [PMID: 32464717 DOI: 10.3760/cma.j.cn112141-20200201-00070] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
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16
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Chen CL, Li MJ, Liu YN, Wang H, Guan ZB, Pan XY. [Expression and its implications of Th1/Th2 cytokines and lymphocyte subsets in adult patients with lymphoma-associated hemophagocytic lymphohistiocytosis]. Zhonghua Xue Ye Xue Za Zhi 2020; 40:777-779. [PMID: 31648484 PMCID: PMC7342452 DOI: 10.3760/cma.j.issn.0253-2727.2019.09.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- C L Chen
- Department of Hematology, The Frist Affiliated Hospital of Guangdong Pharmaceutical University, Guangzhou 510080, China
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17
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Wang W, Hao M, Chen CL, Liu P, Ling B, Kang S, Lu AW, Wang WL, Zhao WD, Zhu QY, Zhao YY, Zhao HW, Jin SL, Ni Y, Lang JH. [Trend in proportion and clinicopathological characteristics of young women with stage Ⅰa2 to Ⅱa2 cervical cancer]. Zhonghua Fu Chan Ke Za Zhi 2019; 54:666-672. [PMID: 31648442 DOI: 10.3760/cma.j.issn.0529-567x.2019.10.004] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To analyze the 13 years trend in proportion, risks factors and clinicopathological characteristics of young women with stage Ⅰa2 to Ⅱa2 cervical cancer by using multi-center data of cervical cancer in China. Methods: The clinicopathological data of 46 313 patients with cervical cancer treated from 37 hospitals in China were obtained from January 2004 to December 2016. Using clinical and pathologic data, each patient's stage was reclassified by the 2018 International Federation of Gynecology and Obstetrics (FIGO) staging system. A total of 19 041 patients were selected according to the following criteria: FIGO stage Ⅰa2 to Ⅱa2, underwent type B or C radical hysterectomy and pelvic lymphadenectomy. All the patients were divided into two groups: the study group of 1 888 patients aged 35 years or younger and the control group of 17 153 patients aged over 35 years. The 13 years trend in proportion of young women with stage Ⅰa2 to Ⅱa2 cervical cancer, risks factors and clinicopathological characteristics of two groups were retrospectively analyzed. Results: (1) The total number of hospitalized patients with stage Ⅰa2 to Ⅱa2 cervical cancer increased annually. However, a downward trend of patients aged 35 years or younger was observed (P<0.01) . The constituent ratio of patients aged 35 years or younger was significantly greater during 2004-2010 than that during 2011-2016 [12.6% (820/6 484) and 8.5% (1 068/12 557) , respectively; χ(2)=82.101, P<0.01]. (2) Compared with patients aged over 35 years, patients aged 35 years or younger had an earlier age at menarche, a later age at marriage, lesser gravida and parity (all P<0.01). The positive rate of high-risk HPV infection was not statistically different between two groups (all P>0.05). (3) The proportions of stage Ⅰ, exophytic type and non-squamous histological type in patients aged 35 years or younger were clearly higher than those in patients aged over 35 years (83.4% vs 68.5%, P<0.01; 63.2% vs 56.2%, P<0.01; 13.9% vs 12.0%, P<0.05, respectively). Whereas the poor differentiation ratios of the two groups had no statistical significance (P>0.05). (4) As for the postoperative pathological risk factors, the rate of surgical margin involvement in patients aged 35 years or younger was lower than that aged over 35 years (1.1% vs 1.8%, P<0.05), and the rate of depth of stromal invasion >1/2 in patients aged 35 years or younger was lower than that in patients aged over 35 years (40.1% vs 50.9%, P<0.01). In addition, there were no significant difference in parametrial margin involvement, tumor size and lymph vascular space invasion between two groups (all P>0.05). Conclusions: The trend in proportion among hospitalized patients for stage Ⅰa2 to Ⅱa2 cervical cancer in young women is decreasing yearly. Compared with cervical cancer in middle-aged and elderly women, cervical cancer in young women have an earlier age at menarche, a higher proportion of stage Ⅰ patients and non-squamous histological type. In terms of the postoperative pathological risk factors, the rate of surgical margin involvement and depth of stromal invasion >1/2 in young women with cervical cancer are lower than in middle-aged and elderly women.
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Affiliation(s)
- W Wang
- Department of Obstetrics and Gynecology, the Second Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - M Hao
- Department of Obstetrics and Gynecology, the Second Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - C L Chen
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - P Liu
- Department of Obstetrics and Gynecology, Nanfang Hospital, Southern Medical University, Guangzhou 510515, China
| | - B Ling
- Department of Obstetrics and Gynecology, China-Japan Friendship Hospital, Beijing 100029, China
| | - S Kang
- Department of Gynecology, Fourth Hospital, Hebei Medical University, Shijiazhuang 050019, China
| | - A W Lu
- Department of Obstetrics and Gynecology, Shenzhen Hospital, Southern Medical University, Shenzhen 518101, China
| | - W L Wang
- Department of Obstetrics and Gynecology, the Second Affiliated Hospital of Zhengzhou University, Zhengzhou 450014, China
| | - W D Zhao
- Department of Obstetrics and Gynecology, Anhui Provincial Hospital, Hefei 236048, China
| | - Q Y Zhu
- Department of Obstetrics and Gynecology, Henan Provincial People's Hospital, Zhengzhou 450003, China
| | - Y Y Zhao
- Department of Obstetrics and Gynecology, the Second Hospital of Shanxi Medical University, Taiyuan 030001, China
| | - H W Zhao
- Department of Gynecology, Shanxi Provincial Cancer Hospital, Taiyuan 030001, China
| | - S L Jin
- Department of Obstetrics and Gynecology, Peace Hospital Affiliated with Changzhi Medical College, Changzhi 046000, China
| | - Y Ni
- Department of Obstetrics and Gynecology, Yuncheng Central Hospital in Shanxi Province, Yuncheng 044000, China
| | - J H Lang
- Department of Obstetrics and Gynecology, Peking Union Medical College Hospital, Chinese Academy of Medical Sciences, Beijing 100730, China
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Chen CL, Shih YC, Liou HH, Hsu YC, Lin FH, Tseng WYI. Premature white matter aging in patients with right mesial temporal lobe epilepsy: A machine learning approach based on diffusion MRI data. Neuroimage Clin 2019; 24:102033. [PMID: 31795060 PMCID: PMC6978225 DOI: 10.1016/j.nicl.2019.102033] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 05/04/2019] [Revised: 09/17/2019] [Accepted: 09/21/2019] [Indexed: 01/24/2023]
Abstract
A brain age prediction model was developed based on diffusion MRI data. Patients with right MTLE exhibited older brain age than those with left MTLE. Predicted age difference (PAD) was correlated with seizure frequency in right MTLE. Right uncinate fasciculus had highest contribution to the observed PAD in right MTLE.
Brain age prediction based on machine learning has been applied to various neurological diseases to discover its clinical values. By this innovative approach, it has been reported that the patients with refractory epilepsy had premature brain aging. Of refractory epilepsy, right and left subtypes of mesial temporal lobe epilepsy (MTLE) are the most common forms and exhibit distinct patterns in white matter alterations. So far, it is unclear whether these two subtypes of MTLE would have difference in white matter aging due to distinct white matter alterations. To address this issue, a machine learning based brain age model using diffusion MRI data was established to investigate biological age of white matter tracts. All diffusion MRI datasets were obtained from the same 3-Tesla MRI scanner. To build the brain age prediction model, diffusion MRI datasets of 300 healthy participants were processed to extract age-relevant diffusion indices from 76 major white matter tracts. The extracted diffusion indices underwent Gaussian process regression to build the prediction model for white matter brain age. The model was validated in an independent testing set (N = 40) to ensure no overfitting of the model. The model was then applied to patients with right and left MTLE and matched controls (right MTLE: N = 17, left MTLE: N = 18, controls: N = 37), and predicted age difference (PAD) was obtained by calculating the difference between each individual's predicted brain age and chronological age. The higher PAD score indicated older brain age. The results showed that right MTLE exhibited older predicted brain age than the other two groups (PAD of right MTLE = 10.9 years [p < 0.05 against left MTLE; p < 0.001 against control]; PAD of left MTLE = 2.2 years [p > 0.1 against control]; PAD of controls = 0.82 years). Patients with right and left MTLE showed strong correlations of the PAD scores with age of onset and duration of illness, but both groups showed opposite directions of correlations. In right MTLE, positive correlation of PAD with seizure frequency was found, and the right uncinate fasciculus was the most attributable tract to the increase in PAD. In conclusion, the present study found that patients with right MTLE exhibited premature white matter brain aging and their PAD scores were correlated with seizure frequency. Therefore, PAD is a potentially useful indicator of white matter impairment and disease severity in patients with right MTLE.
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Affiliation(s)
- Chang-Le Chen
- Institute of Medical Device and Imaging, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Yao-Chia Shih
- Institute of Medical Device and Imaging, College of Medicine, National Taiwan University, Taipei, Taiwan; Institute of Biomedical Engineering, National Taiwan University, Taipei, Taiwan
| | - Horng-Huei Liou
- Department of Neurology, National Taiwan University Hospital and College of Medicine, Taipei, Taiwan; Graduate Institute of Brain and Mind Sciences, College of Medicine, National Taiwan University, Taipei, Taiwan.
| | | | - Fa-Hsuan Lin
- Department of Medical Biophysics, University of Toronto, Toronto, Ontario, Canada.
| | - Wen-Yih Isaac Tseng
- Institute of Biomedical Engineering, National Taiwan University, Taipei, Taiwan; Graduate Institute of Brain and Mind Sciences, College of Medicine, National Taiwan University, Taipei, Taiwan; Department of Medical Imaging, National Taiwan University Hospital and College of Medicine, National Taiwan University, Taipei, Taiwan.
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Chen ML, Gou JM, Meng XL, Chen CL, Liu XN. Cepharanthine, a bisbenzylisoquinoline alkaloid, inhibits lipopolysaccharide-induced microglial activation. Pharmazie 2019; 74:606-610. [PMID: 31685086 DOI: 10.1691/ph.2019.9562] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 09/29/2022]
Abstract
Activation of microglial cells in the brain has been considered to be associated with various neurodegenerative diseases (NDD). In this study, cepharanthine, a bisbenzylisoquinoline alkaloid, was found to inhibit lipopolysaccharide (LPS)-induced microglial activation. Cepharanthine suppressed the release of nitric oxide (NO) by LPS-activated primary mouse cortical microglia and/or BV2 microglial cell line. Cepharanthine reduced LPS-induced mRNA expression of inducible NO synthase (iNOS), but it did not display direct NO-scavenging activity up to 100 μM in sodium nitroprusside (SNP) solution. Further studies revealed that cepharanthine suppressed the release of cytokines (TNF-α, IL-1β, and IL-6) by LPS-activated microglial cells. Cepharanthine may have potential in the treatment of neurodegenerative diseases accompanied by microglial activation.
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Chen CL, Huang YQ, Feng YQ. [Research progress on the impact of home blood pressure monitoring on major adverse events in the general population]. Zhonghua Xin Xue Guan Bing Za Zhi 2019; 47:752-755. [PMID: 31550850 DOI: 10.3760/cma.j.issn.0253-3758.2019.09.020] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Affiliation(s)
- C L Chen
- Guangdong Provincial Key Laboratory of Coronary Heart Disease Prevention, Guangdong Cardiovascular Institute, Department of Cardiology, Guangdong Provincial People's Hospital, Guangdong Academy of Medical Sciences, Guangzhou 510080, China
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Chen L, Chen CL, Liu P, Feng J, Qiao WW, Tang L, Chen SZ, Chen JY, Cao XJ. [Effects of menopausal factor on fine anatomy of bladder urethra and vagina in women undergoing vaginal delivery]. Zhonghua Yi Xue Za Zhi 2018; 98:3676-3680. [PMID: 30526778 DOI: 10.3760/cma.j.issn.0376-2491.2018.45.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the effects of menopausal factor on fine anatomy of bladder, urethra and vagina in women undergoing vaginal delivery. Methods: Gynecological patients in Nanfang hospital from January 2013 to October 2016 were collected, and then the patients whose MRI images quality meet the require of reconstruction, with the history of vaginal delivery experience, without any cesarean section experience, and the first labor time was ≤30 years old were enrolled. The patients who had pelvic floor dysfunction when done MRI examinations were excluded. Finally, 238 cases were randomly selected out, and 238 models of data were reconstructed and measured by Mimics and UG software. The independent t test was used to do the comparison between menopausal group and those not yet menopause. Results: First, we built 238 3D models totally. Second, the parameters related with bladder and urethra: the angle of bladder and urethra, β angle, urethra pubic angle, α angle, retropubic space, the length between bladder neck and edge of pubic midpoint, and urethral striated muscle thickness of menopausal group were bigger than those of pre-menopausal group. While for the urethra tilt angle, the former group was smaller than that of the latter group. But there was no significant statistical differences between two groups. Third, the parameters related with vagina: the proximal urethral vaginal gap of the post-menopause group was smaller than that of pre-menopausal group, while for the middle and distal urethral vaginal gap, the former group was bigger than that of the latter group. The length and width of vaginal anterior wall of the post-menopausal group were smaller than those of pre-menopausal group. Beside the middle urethral vaginal gap, all the difference between two groups had no statistical meaning. The 2D shape of axial vaginal, H type occupation of the former group was obviously lower than that of the latter group. Conclusions: Menopause has an effect on fine anatomy of pelvic organ. Especially on the shape of vagina, the middle urethral vaginal gap become much wider after menopause, the occupation of shallow concave type become much higher post-menopausal. It means the lateral and backward support function of the urethra and vagina is relatively weakened after menopausal, and the shape of vagina become smaller.
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Affiliation(s)
- L Chen
- Department of Obstetrics and Gynecology, Nanfang Hospital of Southern Medical University, Guangzhou 510515, China
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Tong YS, Huang TL, Chen TY, Tsang LLC, Ou HY, Yu CY, Hsu HW, Xiong LW, Liao CC, Eng HL, Chen CL, Cheng YF. Imaging Validation of Drug-Eluting Beads Transarterial Chemoembolization of Hepatocellular Carcinomas in Living Donor Liver Transplantation. Transplant Proc 2018; 50:2622-2625. [PMID: 30401362 DOI: 10.1016/j.transproceed.2018.05.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2018] [Revised: 05/05/2018] [Accepted: 05/21/2018] [Indexed: 01/10/2023]
Abstract
OBJECTIVE The aim of this study is to determine whether post-transarterial chemoembolization imaging (computed tomography or magnetic resonance imaging) could accurately predict the tumors' necrosis on pathologic specimens. BACKGROUND Transarterial chemoembolization with drug-eluting beads has been proven to be an effective way to bridge patients with hepatocellular carcinomas to liver transplantation. MATERIALS AND METHODS From September 2012 to June 2017, 59 patients with a total of 78 hepatocellular carcinomas, who received transarterial chemoembolization with drug-eluting beads before liver transplantation in Kaohsiung Chang Gung Memorial Hospital, were included in the study. All patients and hepatocellular carcinomas have pre-transarterial chemoembolization and post-transarterial chemoembolization images (computed tomography or magnetic resonance imaging) and pathological findings for correlation. Tumor response was evaluated according to modified Response Evaluation Criteria in Solid Tumors. The ranges of necrotic percentage are 100%, 91-99%, 51-90%, and <50%. RESULTS The accuracy rate between the imaging and pathology correlation was 40% for computed tomography and 42% for magnetic resonance imaging. The recurrent rate of the complete respond group is 11.5%, the partial respond group is 16.0%, and the stationary group is 28.6%. CONCLUSION Computed tomography and magnetic resonance imaging sensitivity is not satisfactory for microscopic evaluation of residual tumors after transarterial chemoembolization with drug-eluting beads. However, survival is good after liver transplantation no matter what the microscopic findings were.
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Affiliation(s)
- Y S Tong
- Liver Transplantation Program and Departments of Diagnostic Radiology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - T L Huang
- Liver Transplantation Program and Departments of Diagnostic Radiology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - T Y Chen
- Liver Transplantation Program and Departments of Diagnostic Radiology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - L L C Tsang
- Liver Transplantation Program and Departments of Diagnostic Radiology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - H Y Ou
- Liver Transplantation Program and Departments of Diagnostic Radiology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - C Y Yu
- Liver Transplantation Program and Departments of Diagnostic Radiology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - H W Hsu
- Liver Transplantation Program and Departments of Diagnostic Radiology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - L W Xiong
- Liver Transplantation Program and Departments of Diagnostic Radiology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - C C Liao
- Liver Transplantation Program and Departments of Diagnostic Radiology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - H L Eng
- Liver Transplantation Program and Departments of Diagnostic Radiology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - C L Chen
- Departments of Surgery, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Y F Cheng
- Liver Transplantation Program and Departments of Diagnostic Radiology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan.
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Wang HC, Shih YC, Tseng YS, Chen CL, Lee TH, Yang KC. 4930Cardiac fibroblast-enriched long non-coding RNA lnc-fibrogen promotes myocardial fibrosis by sponging miR-29a. Eur Heart J 2018. [DOI: 10.1093/eurheartj/ehy566.4930] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- H C Wang
- National Taiwan University, Graduate Institute of Pharmacology, Taipei, Taiwan ROC
| | - Y C Shih
- National Taiwan University, Graduate Institute of Pharmacology, Taipei, Taiwan ROC
| | - Y S Tseng
- National Taiwan University, Graduate Institute of Pharmacology, Taipei, Taiwan ROC
| | - C L Chen
- National Taiwan University, Graduate Institute of Pharmacology, Taipei, Taiwan ROC
| | - T H Lee
- National Taiwan University, Graduate Institute of Pharmacology, Taipei, Taiwan ROC
| | - K C Yang
- National Taiwan University, Graduate Institute of Pharmacology, Taipei, Taiwan ROC
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Lang JH, Chen CL, Xiang Y. [Expert consensus of uterine artery embolization in the management of uterine fibroids and adenomysis]. Zhonghua Fu Chan Ke Za Zhi 2018; 53:289-293. [PMID: 29804344 DOI: 10.3760/cma.j.issn.0529-567x.2018.05.001] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
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Brink GJ, Lei WY, Omari TI, Singendonk MMJ, Hung JS, Liu TT, Yi CH, Chen CL. Physiological augmentation of esophageal distension pressure and peristalsis during conditions of increased esophageal emptying resistance. Neurogastroenterol Motil 2018; 30:e13225. [PMID: 29063658 DOI: 10.1111/nmo.13225] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2017] [Accepted: 09/14/2017] [Indexed: 02/08/2023]
Abstract
BACKGROUND Abdominal compression has been implemented as a provocative maneuver in high-resolution impedance manometry (HRIM) to "challenge" normal esophageal physiology with the aim of revealing abnormal motor patterns which may explain symptoms. In this study, we measured the effects of abdominal compression on esophageal functioning utilizing novel pressure-impedance parameters and attempted to identify differences between healthy controls and globus patients. METHODS Twenty-two healthy volunteers (aged 23-32 years, 41% female) and 22 globus patients (aged 23-72 years, 68% female) were evaluated with HRIM using a 3.2-mm water perfused manometric and impedance catheter. All participants received 10 × 5 mL liquid swallows; healthy controls also received 10 × 5 mL liquid swallows with abdominal compression created using an inflatable cuff. All swallows were analyzed to assess esophageal pressure topography (EPT) and pressure-flow metrics, indicative of distension pressure, flow timing and bolus clearance were derived. KEY RESULTS The effect of abdominal compression was shown as a greater contractile vigor of the distal esophagus by EPT and higher distension pressure based on pressure-flow metrics. Age and body mass index also increased contractile vigor and distension pressure. Globus patients were similar to controls. CONCLUSIONS AND INTERFERENCES Intrabolus pressure and contractile vigor are indicative of the physiological modulation of bolus transport mechanisms. Provocative testing by abdominal compression induces changes in these esophageal bolus dynamics.
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Affiliation(s)
- G J Brink
- Department of Pediatric Gastroenterology and Nutrition, Emma Children's Hospital, AMC, Amsterdam, The Netherlands
| | - W Y Lei
- Department of Medicine, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation and Tzu Chi University, Hualien, Taiwan
| | - T I Omari
- School of Medicine, Flinders University, South Australia
| | - M M J Singendonk
- Department of Pediatric Gastroenterology and Nutrition, Emma Children's Hospital, AMC, Amsterdam, The Netherlands
| | - J S Hung
- Department of Medicine, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation and Tzu Chi University, Hualien, Taiwan
| | - T T Liu
- Department of Medicine, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation and Tzu Chi University, Hualien, Taiwan
| | - C H Yi
- Department of Medicine, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation and Tzu Chi University, Hualien, Taiwan
| | - C L Chen
- Department of Medicine, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation and Tzu Chi University, Hualien, Taiwan
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Chen CL, Kao YC, Sung PJ, Wen ZH. A Dibromotyrosine Derivative from Pseudoceratina sp. Suppresses TGF-β Responsiveness by Inhibiting TGF-β type I Receptor Kinase Activity. Am J Transl Res 2017. [DOI: 10.1055/s-0037-1608104] [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: 10/18/2022]
Affiliation(s)
- CL Chen
- National Sun Yat-sen University, Department of Biological Science, Kaohsiung, Taiwan
| | - YC Kao
- National Sun Yat-sen University, Department of Biological Science, Kaohsiung, Taiwan
| | - PJ Sung
- National Museum of Marine Biology and Aquarium, Pingtung, Taiwan
- National Dong Hwa University, Graduate Institute of Marine Biology, Hualien, Taiwan
| | - ZH Wen
- National Sun Yat-sen University, Department of Marine Biotechnology and Resources, Kaohsiung, Taiwan
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Huo ZF, Chen CL, Liu P, Ma B, Duan H, Jiang BY, Tang YX, Xu YJ, Zhu JH. [Analysis of related factors on effects of uterine artery embolization in the treatment of dysmenorrhea of adenomyosis and the construction and validation of prediction model]. Zhonghua Fu Chan Ke Za Zhi 2017; 51:650-656. [PMID: 27671044 DOI: 10.3760/cma.j.issn.0529-567x.2016.09.003] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To investigate the related factors on effects of uterine artery embolization(UAE)in the treatment of dysmenorrhea in patients with adenomyosis, and to construct and validate the efficacy prediction model. Methods: A total of 127 cases of adenomyosis patients with symptoms of dysmenorrhea in Guangzhou No.1 People's Hospital and Nanfang Hospital of Southern Medical University from June 1999 to December 2009 were reviewed. The evaluation standard was to improve the degree of dysmenorrhea, the related factors of efficacy were analysed. Combined with artificial neural network theory, the effect prediction model was constructed, and the effectiveness of the model was evaluated using receiver operating characteristic(ROC)curve, and the effectiveness of the cut-off point was calculated. The model was validated by 68 cases of patients with adenomyosis in the Nanfang Hospital from January 2010 to November 2014. Results: (1)In 127 cases of dysmenorrhea patients, UAE treatment was effective in 98 cases, effective rate was 77.2%(98/127).(2)Age was an independent predictor of effective UAE treatment(HR= 1.129, P=0.026); in the range of this study, the greater the age, the higher the UAE treatment efficiency.(3)The developing situation of ovary branches of uterine artery was an independent predictor of effective UAE treatment(HR=0.460, P=0.020), the efficiency of patients whose intraoperative bilateral uterine artery ovarian branch did not develop was 89.7%(35/39), the efficiency of patients whose unilateral uterine artery ovarian branch was developing was 84.1%(37/44)and the efficiency of patients whose bilateral uterine artery ovarian branch were developing was 59.1%(26/44).(4)Blood supply of adenomyosisis was an independent predictor of effective UAE treatment(HR=0.313, P=0.001). Type Ⅰ(bilateral predominated)patients, efficiency was 93.5%(43/46); type Ⅱ(bilateral balanced)patients, efficiency was 78.0%(39/50); type Ⅲ(unilateral predominated)patients, efficiency was 51.6%(16/31).(5)UAE for the treatment of adenomyosis efficacy of artificial neural network prediction model was constructed, the model's area under the ROC curve was 0.808, the optimal cut-off point was 0.669 13. Actual verification of the model, sensitivity was 96.5%, specificity was 81.8%, positive predictive value was 96.5% and negative predictive value was 81.8%, the total accuracy was 94.1%. Conclusions: (1)Age, the developing situation of ovary branches and blood supply of adenomyosis are the independent predictors of effective UAE treatment.(2)The artificial neural network prediction model is satisfied with the accuracy and the accuracy of prediction.
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Affiliation(s)
- Z F Huo
- Department of Obstetrics and Gynecology, Nanfang Hospital of Southern Medical University, Guangzhou 510515, China
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Lang JH, Xiang Y, Chen CL. [Consensus of three dimensions laparoscopy in gynecologic surgery]. Zhonghua Fu Chan Ke Za Zhi 2017; 52:73-76. [PMID: 28253567 DOI: 10.3760/cma.j.issn.0529-567x.2017.02.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
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Lim KI, Chiu YC, Chen CL, Wang CH, Huang CJ, Cheng KW, Wu SC, Shih TH, Yang SC, Juang SE, Huang CE, Jawan B, Lee YE. Effects of Pre-Existing Liver Disease on Acute Pain Management Using Patient-Controlled Analgesia Fentanyl With Parecoxib After Major Liver Resection: A Retrospective, Pragmatic Study. Transplant Proc 2017; 48:1080-2. [PMID: 27320562 DOI: 10.1016/j.transproceed.2015.11.023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2015] [Accepted: 11/06/2015] [Indexed: 12/29/2022]
Abstract
BACKGROUND The aim of this study was to compare the outcomes of pain management with the use of patient-controlled analgesia (PCA) fentanyl with IV parecoxib between patients with healthy liver with patients with diseased liver undergoing major liver resection. METHODS Patients with healthy liver undergoing partial hepatectomy as liver donors for liver transplantation (group 1) and patients with liver cirrhosis (Child's criteria A) undergoing major liver resection for hepatoma (group 2) were identified retrospectively. Both groups routinely received post-operative IV PCA fentanyl and a single dose of parecoxib 40 mg. They were followed up for 3 days or until PCA fentanyl was discontinued post-operatively. Daily Visual Analog Scale, PCA fentanyl usage, rescue attempts, and common drug side effects were collected and analyzed with the use of SPSS version 20. RESULTS One hundred one patients were included in the study: 54 in group 1, and 47 in group 2. There were no statistical differences between the two groups in terms of the daily and total fentanyl usage, VAS resting, and incidence of itchiness. The rate of rescue analgesia on post-operative day (POD) 1 was lower in group 2, with a value of P = .045. VAS dynamics were better on POD 1 and 2 for group 2, with P = .05 and P = .012, respectively. CONCLUSIONS We found that combining a single dose of IV parecoxib 40 mg with PCA fentanyl is an easy and effective method of acute pain control after major liver resection. We propose the careful usage of post-operative fentanyl and parecoxib in patients with diseased liver, given the difference in effect as compared with healthy liver.
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Affiliation(s)
- K I Lim
- Department of Anesthesiology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Y C Chiu
- Department of Anesthesiology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - C L Chen
- Department of Liver Transplantation Program and Surgery, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - C H Wang
- Department of Anesthesiology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - C J Huang
- Department of Anesthesiology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - K W Cheng
- Department of Anesthesiology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - S C Wu
- Department of Anesthesiology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - T H Shih
- Department of Anesthesiology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - S C Yang
- Department of Anesthesiology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - S E Juang
- Department of Anesthesiology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - C E Huang
- Department of Anesthesiology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - B Jawan
- Department of Anesthesiology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Y E Lee
- Department of Anesthesiology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan.
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Ben SB, Peng B, Wang GC, Li C, Gu HF, Jiang H, Meng XL, Lee BJ, Chen CL. Overexpression of Selenoprotein SelK in BGC-823 Cells Inhibits Cell Adhesion and Migration. Biochemistry (Mosc) 2016; 80:1344-53. [PMID: 26567579 DOI: 10.1134/s0006297915100168] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/23/2022]
Abstract
Effects of human selenoprotein SelK on the adhesion and migration ability of human gastric cancer BGC-823 cells using Matrigel adhesion and transwell migration assays, respectively, were investigated in this study. The Matrigel adhesion ability of BGC-823 cells that overexpressed SelK declined extremely significantly (p < 0.01) compared with that of the cells not expressing the protein. The migration ability of BGC-823 cells that overexpressed SelK also declined extremely significantly (p < 0.01). On the other hand, the Matrigel adhesion ability and migration ability of the cells that overexpressed C-terminally truncated SelK did not decline significantly. The Matrigel adhesion ability and migration ability of human embryonic kidney HEK-293 cells that overexpressed SelK did not show significant change (p > 0.05) with the cells that overexpressed the C-terminally truncated protein. In addition to the effect on Matrigel adhesion and migration, the overexpression of SelK also caused a loss in cell viability (as measured by 3-(4,5-dimethyl-2-thiazolyl)-2,5-diphenyl-2H tetrazolium bromide (MTT) colorimetric assay) and induced apoptosis as shown by confocal microscopy and flow cytometry. The cytosolic free Ca2+ level of these cells was significantly increased as detected by flow cytometry. But the overexpression of SelK in HEK-293 cells caused neither significant loss in cell viability nor apoptosis induction. Only the elevation of cytosolic free Ca2+ level in these cells was significant. Taken together, the results suggest that the overexpression of SelK can inhibit human cancer cell Matrigel adhesion and migration and cause both the loss in cell viability and induction of apoptosis. The release of intracellular Ca2+ from the endoplasmic reticulum might be a mechanism whereby the protein exerted its impact. Furthermore, only the full-length protein, but not C-terminally truncated form, was capable of producing such impact. The embryonic cells were not influenced by the elevation of free Ca2+ level in cytosol, probably due to their much greater tolerance to the variation.
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Affiliation(s)
- S B Ben
- School of Life Science, Liaoning University, Shenyang, 110036, China.
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Shih TH, Huang CE, Chen CL, Wang CH, Huang CJ, Cheng KW, Wu SC, Juang SE, Lee YE, Wong ZW, Jawan B, Yang SC. Correlation Between Changes in End-Tidal Carbon Dioxide Concentration and Cardiac Output During Inferior Vena Cava Clamping and Unclamping in Living-donor Liver Transplantation. Transplant Proc 2016; 48:1077-9. [PMID: 27320561 DOI: 10.1016/j.transproceed.2015.10.061] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/01/2015] [Accepted: 10/03/2015] [Indexed: 01/10/2023]
Abstract
BACKGROUND To test the hypothesis that low end-tidal carbon dioxide tension encountered during anhepatic phase in liver transplantation is related to hemodynamic status rather than ventilatory status, and can be used to predict the change in cardiac output during anhepatic phase. METHODS We retrospectively analyzed and compared data, included end-tidal carbon dioxide tension (ETCO2), arterial blood pressure, heart rate, central venous pressure, cardiac output, cardiac index, and stroke volume, before and after inferior vena cava clamping, and 0, 5, 10, 30 minutes during the anhepatic, and 5 minutes after the release of IVC cross clamp during the reperfusion phase, with paired Student t test, repeated measurement, and linear regression. P < .05 was regarded as significant. RESULTS The cardiac output and ETCO2 decrease significantly after clamping the inferior vena cava and increase concomitantly after unclamping. There is a positive correlation between the changes in % in cardiac output and ETCO2 (Pearson coefficient r = 0.741). CONCLUSION The changes in ETCO2 can be used to predict the changes of the cardiac output in % when cardiac output monitoring is not available. Before unclamping of the IVC, mild hyperventilation is suggested to prevent excessive increase in PaCO2.
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Affiliation(s)
- T H Shih
- Department of Anesthesiology, Kaohsiung Chang Gung Memorial and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - C E Huang
- Department of Anesthesiology, Kaohsiung Chang Gung Memorial and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - C L Chen
- Department of Liver Transplantation Program and Surgery, Kaohsiung Chang Gung Memorial and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - C H Wang
- Department of Anesthesiology, Kaohsiung Chang Gung Memorial and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - C J Huang
- Department of Anesthesiology, Kaohsiung Chang Gung Memorial and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - K W Cheng
- Department of Anesthesiology, Kaohsiung Chang Gung Memorial and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - S C Wu
- Department of Anesthesiology, Kaohsiung Chang Gung Memorial and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - S E Juang
- Department of Anesthesiology, Kaohsiung Chang Gung Memorial and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Y E Lee
- Department of Anesthesiology, Kaohsiung Chang Gung Memorial and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Z W Wong
- Department of Anesthesiology, Kaohsiung Chang Gung Memorial and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - B Jawan
- Department of Anesthesiology, Kaohsiung Chang Gung Memorial and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - S C Yang
- Department of Anesthesiology, Kaohsiung Chang Gung Memorial and Chang Gung University College of Medicine, Kaohsiung, Taiwan.
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Abstract
ErbB4 is an oncogene belonging to the epidermal growth factor receptor family and contributes to the occurrence and development of multiple cancers, such as gastric, breast, and colorectal cancers. Therefore, studies of the regulation of ErbB4 in cancerigenic pathway will advance molecular targeted therapy. Advanced bioinformatic analysis softwares, such as ExPASy, Predictprotei, QUARK, and I-TASSER, were used to analyze the regulatory mechanism after ErbB4 gene mutation in terms of amino acid sequence, primary, secondary, and tertiary structure of the protein and upstream-downstream receptor/ligands. Mutation of the 19th and 113th amino acids at the carboxyl terminus of ErbB4 protein did not affect its biological nature, but its secondary structure changed and protein binding sites were near 2 mutational sites; moreover, after mutation introduction, additional binding sites were observed. Tertiary structure modeling indicated that local structure of ErbB4 was changed from an α helical conformation into a β chain folding structure; the α helical conformation is the functional site of protein, while active sites are typically near junctions between helical regions, thus the helical structures are easily destroyed and change into folding structures or other structures after stretching. Mutable sites of ErbB4 is exact binding sites where dimer formed with other epidermal growth factor family proteins; mutation enabled the ErbB4 receptor to bind to neuregulin 1 ligand without dimer formation, disrupting the signal transduction pathway and affecting ErbB4 function.
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Affiliation(s)
- C L Chen
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, Institute of Biomedical Analytical Technology and Instrumentation, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, China
| | - J W Zhao
- The Key Laboratory of Biomedical Information Engineering of Ministry of Education, Institute of Biomedical Analytical Technology and Instrumentation, School of Life Science and Technology, Xi'an Jiaotong University, Xi'an, China
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Zhang HY, Chen CL. "Chain of Beads" Appearance of the Superior Mesenteric Artery. Eur J Vasc Endovasc Surg 2016; 51:845. [PMID: 27038841 DOI: 10.1016/j.ejvs.2016.03.007] [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] [Received: 03/01/2016] [Accepted: 03/08/2016] [Indexed: 10/22/2022]
Affiliation(s)
- H Y Zhang
- The Second Affiliated Hospital of Jiaxing Medical College, Jiaxing, Zhejiang, China.
| | - C L Chen
- The Second Affiliated Hospital of Jiaxing Medical College, Jiaxing, Zhejiang, China
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Xu S, Gong XF, Zou HL, Liu CY, Chen CL, Zeng XX. Recycling agriculture wastes of ramie stalk as bioadsorbents for Cd(2+) removal: a kinetic and thermodynamic study. Water Sci Technol 2016; 73:396-404. [PMID: 26819396 DOI: 10.2166/wst.2015.475] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/13/2023]
Abstract
In this study, we exhibit the recycling of agriculture wastes of ramie stalk as bioadsorbents for Cd(2+) removal. Based on our experimental results, it is realized that Cd(2+) adsorption to ramie stalk is highly pH sensitive, indicating the adsorption is driven by surface complexation reaction. The high adsorption capacity of ramie stalk toward Cd(2+) (qm = 10.33 mg g(-1), 0.09 mol-Cd g(-1)), which corresponds to around 21.95% of active adsorption sites available of ramie stalk, is believed to be closely related to its high cellulose and lignin content. The inhomogeneous surface of ramie stalk due to the high cellulose and lignin content also accounts for the observation that the adsorption kinetic is described well by the pseudo second order kinetic model. Results from thermodynamic studies suggest that the adsorption process is endothermic and spontaneous. All these properties demonstrate the potential of ramie stalk as a low cost bioadsorbent for the application of heavy metal removal.
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Affiliation(s)
- S Xu
- School of Resource Environmental and Chemical Engineering, Nanchang University, Nanchang 330031, China E-mail:
| | - X F Gong
- School of Resource Environmental and Chemical Engineering, Nanchang University, Nanchang 330031, China E-mail:
| | - H L Zou
- School of Resource Environmental and Chemical Engineering, Nanchang University, Nanchang 330031, China E-mail:
| | - C Y Liu
- School of Resource Environmental and Chemical Engineering, Nanchang University, Nanchang 330031, China E-mail:
| | - C L Chen
- School of Resource Environmental and Chemical Engineering, Nanchang University, Nanchang 330031, China E-mail:
| | - X X Zeng
- School of Resource Environmental and Chemical Engineering, Nanchang University, Nanchang 330031, China E-mail:
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Chen CL, Chou KJ, Fang HC, Hsu CY, Huang WC, Huang CW, Huang CK, Chen HY, Lee PT. Progenitor-like cells derived from mouse kidney protect against renal fibrosis in a remnant kidney model via decreased endothelial mesenchymal transition. Stem Cell Res Ther 2015; 6:239. [PMID: 26631265 PMCID: PMC4668678 DOI: 10.1186/s13287-015-0241-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/01/2014] [Revised: 03/09/2015] [Accepted: 11/17/2015] [Indexed: 12/20/2022] Open
Abstract
Introduction Pathophysiological changes associated with chronic kidney disease impair angiogenic processes and increase renal fibrosis. Progenitor-like cells derived from adult kidney have been previously used to promote regeneration in acute kidney injury, even though it remained unclear whether the cells could be beneficial in chronic kidney disease (CKD). Methods In this study, we established a CKD model by five-sixths nephrectomy and mouse kidney progenitor-like cells (MKPCs) were intravenously administered weekly for 5 weeks after establishing CKD. We examined the impact of MKPCs on the progression of renal fibrosis and the potential of MKPCs to preserve the angiogenic process and prevent endothelial mesenchymal transition in vivo and in vitro. Results Our results demonstrate that the MKPCs delayed interstitial fibrosis and the progression of glomerular sclerosis and ameliorated the decline of kidney function. At 17 weeks, the treated mice exhibited lower blood pressures, higher hematocrit levels, and larger kidney sizes than the control mice. In addition, the MKPC treatment prolonged the survival of the mice with chronic kidney injuries. We observed a decreased recruitment of macrophages and myofibroblasts in the interstitium and the increased tubular proliferation. Notably, MKPC both decreased the level of vascular rarefaction and prevented endothelial mesenchymal transition (EndoMT) in the remnant kidneys. Moreover, the conditioned medium from the MKPCs ameliorated endothelial cell death under hypoxic culture conditions and prevented TGF-β-induced EndoMT through downregulation of phosphorylated Smad 3 in vitro. Conclusions MKPCs may be a beneficial treatment for kidney diseases characterized by progressive renal fibrosis. The enhanced preservation of angiogenic processes following MKPC injections may be associated with decreased fibrosis in the remnant kidney. These findings provide further understanding of the mechanisms involved in these processes and will help develop new cell-based therapeutic strategies for regenerative medicine in renal fibrosis. Electronic supplementary material The online version of this article (doi:10.1186/s13287-015-0241-8) contains supplementary material, which is available to authorized users.
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Affiliation(s)
- C L Chen
- Division of Nephrology, Department of Medicine, Kaohsiung Veterans General Hospital, School of Medicine, National Yang-Ming University, 386 Ta-Chung 1st Rd, Kaohsiung, 813, Taiwan.
| | - K J Chou
- Division of Nephrology, Department of Medicine, Kaohsiung Veterans General Hospital, School of Medicine, National Yang-Ming University, 386 Ta-Chung 1st Rd, Kaohsiung, 813, Taiwan.
| | - H C Fang
- Division of Nephrology, Department of Medicine, Kaohsiung Veterans General Hospital, School of Medicine, National Yang-Ming University, 386 Ta-Chung 1st Rd, Kaohsiung, 813, Taiwan.
| | - C Y Hsu
- Division of Nephrology, Department of Medicine, Kaohsiung Veterans General Hospital, School of Medicine, National Yang-Ming University, 386 Ta-Chung 1st Rd, Kaohsiung, 813, Taiwan.
| | - W C Huang
- Division of Nephrology, Department of Medicine, Kaohsiung Veterans General Hospital, School of Medicine, National Yang-Ming University, 386 Ta-Chung 1st Rd, Kaohsiung, 813, Taiwan.
| | - C W Huang
- Division of Nephrology, Department of Medicine, Kaohsiung Veterans General Hospital, School of Medicine, National Yang-Ming University, 386 Ta-Chung 1st Rd, Kaohsiung, 813, Taiwan.
| | - C K Huang
- Division of Nephrology, Department of Medicine, Kaohsiung Veterans General Hospital, School of Medicine, National Yang-Ming University, 386 Ta-Chung 1st Rd, Kaohsiung, 813, Taiwan.
| | - H Y Chen
- Division of Nephrology, Department of Medicine, Kaohsiung Veterans General Hospital, School of Medicine, National Yang-Ming University, 386 Ta-Chung 1st Rd, Kaohsiung, 813, Taiwan.
| | - P T Lee
- Division of Nephrology, Department of Medicine, Kaohsiung Veterans General Hospital, School of Medicine, National Yang-Ming University, 386 Ta-Chung 1st Rd, Kaohsiung, 813, Taiwan.
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Stewart J, Breslin WJ, Beyer BK, Chadwick K, De Schaepdrijver L, Desai M, Enright B, Foster W, Hui JY, Moffat GJ, Tornesi B, Van Malderen K, Wiesner L, Chen CL. Birth Control in Clinical Trials: Industry Survey of Current Use Practices, Governance, and Monitoring. Ther Innov Regul Sci 2015; 50:155-168. [PMID: 27042398 PMCID: PMC4766962 DOI: 10.1177/2168479015608415] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/14/2015] [Accepted: 09/01/2015] [Indexed: 11/16/2022]
Abstract
The Health and Environmental Sciences Institute (HESI) Developmental and Reproductive Toxicology Technical Committee sponsored a pharmaceutical industry survey on current industry practices for contraception use during clinical trials. The objectives of the survey were to improve our understanding of the current industry practices for contraception requirements in clinical trials, the governance processes set up to promote consistency and/or compliance with contraception requirements, and the effectiveness of current contraception practices in preventing pregnancies during clinical trials. Opportunities for improvements in current practices were also considered. The survey results from 12 pharmaceutical companies identified significant variability among companies with regard to contraception practices and governance during clinical trials. This variability was due primarily to differences in definitions, areas of scientific uncertainty or misunderstanding, and differences in company approaches to enrollment in clinical trials. The survey also revealed that few companies collected data in a manner that would allow a retrospective understanding of the reasons for failure of birth control during clinical trials. In this article, suggestions are made for topics where regulatory guidance or scientific publications could facilitate best practice. These include provisions for a pragmatic definition of women of childbearing potential, guidance on how animal data can influence the requirements for male and female birth control, evidence-based guidance on birth control and pregnancy testing regimes suitable for low- and high-risk situations, plus practical methods to ascertain the risk of drug-drug interactions with hormonal contraceptives.
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Affiliation(s)
- J Stewart
- AstraZeneca, Macclesfield, United Kingdom
| | - W J Breslin
- Lilly Research Laboratories, Indianapolis, IN, USA
| | - B K Beyer
- Sanofi U.S. Inc, Bridgewater, NJ, USA
| | - K Chadwick
- Bristol-Myers Squibb, New Brunswick, NJ, USA
| | | | - M Desai
- AbbVie Inc, North Chicago, IL, USA
| | | | - W Foster
- McMaster University, Hamilton, Ontario, Canada
| | - J Y Hui
- Celgene Corp, Summit, NJ, USA
| | | | | | - K Van Malderen
- Federal Agency for Medicines and Health Products, Brussels, Belgium
| | - L Wiesner
- Federal Institute for Drugs and Medical Devices, Bonn, Germany
| | - C L Chen
- ILSI-Health and Environmental Sciences Institute, Washington, DC, USA
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Chen CL, Parolia A, Pau A, Celerino de Moraes Porto IC. Comparative evaluation of the effectiveness of desensitizing agents in dentine tubule occlusion using scanning electron microscopy. Aust Dent J 2015; 60:65-72. [DOI: 10.1111/adj.12275] [Citation(s) in RCA: 35] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 05/14/2014] [Indexed: 12/14/2022]
Affiliation(s)
- CL Chen
- School of Dentistry; International Medical University; Bukit Jalil Kuala Lumpur Malaysia
| | - A Parolia
- School of Dentistry; International Medical University; Bukit Jalil Kuala Lumpur Malaysia
| | - A Pau
- School of Dentistry; International Medical University; Bukit Jalil Kuala Lumpur Malaysia
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Lin LM, Lin CC, Chen CL, Lin CC. Effects of an education program on intensive care unit nurses' attitudes and behavioral intentions to advocate deceased donor organ donation. Transplant Proc 2015; 46:1036-40. [PMID: 24815121 DOI: 10.1016/j.transproceed.2013.12.039] [Citation(s) in RCA: 16] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/26/2013] [Revised: 12/05/2013] [Accepted: 12/11/2013] [Indexed: 10/25/2022]
Abstract
INTRODUCTION Organ shortage limits the application of organ transplantation. The attitudes of intensive care unit (ICU) staff play an important role in organ advocating. The effects of an education program for ICU nurses on organ advocating were uncertain. The purpose of this study was to explore the effects of an education program based on the Theory of Planned Behavior (TPB) on ICU nurses' attitudes and behavioral intentions to advocate deceased organ donation. METHODS Participants were recruited from 3 different ICU units in medical centers and were randomly assigned to either an experimental group (n = 61) or a control group (n = 62). The nurses in the experimental group received comprehensive education programs, and the control groups received a brochure only. The outcome parameters were measured by questionnaires at 3 different time points of pretest, posttests immediately after education, and 2 months later. RESULTS Before education, there was no difference in attitude and behavior intentions between the control and experimental groups. After TPB training, the nurses significantly changed their attitudes and behavior intentions on organ advocating, both immediately (P < .01) and 2 months after the education program (P < .01). In addition, multivariate analysis indicated that TPB training is significantly associated with the change of attitude (P < .01) and behavior intention (P < .05) of organ donation advocacy. CONCLUSIONS TPB education programs enhanced the ICU nurses' attitudes and behavioral intentions on advocating organ donation. Repeated education is advised to increase the participation of ICU nurses on organ advocacy.
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Affiliation(s)
- L M Lin
- Liver Transplantation Center, Department of Nursing, Kaohsiung Chang Gung Memorial Hospital, and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Chiu C Lin
- College of Nursing, Kaohsiung Medical University, Kaohsiung, Taiwan.
| | - C L Chen
- Liver Transplantation Center, Department of Surgery, Kaohsiung Chang Gung Memorial Hospital, and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Chih C Lin
- Liver Transplantation Center, Department of Surgery, Kaohsiung Chang Gung Memorial Hospital, and Chang Gung University College of Medicine, Kaohsiung, Taiwan
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Liu TT, Yi CH, Lei WY, Hung XS, Yu HC, Chen CL. Influence of repeated infusion of capsaicin-contained red pepper sauce on esophageal secondary peristalsis in humans. Neurogastroenterol Motil 2014; 26:1487-93. [PMID: 25124733 DOI: 10.1111/nmo.12414] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/21/2014] [Accepted: 07/21/2014] [Indexed: 02/08/2023]
Abstract
BACKGROUND The transient receptor potential vanilloid 1 has been implicated as a target mediator for heartburn perception and modulation of esophageal secondary peristalsis. Our aim was to determine the effect of repeated esophageal infusion of capsaicin-contained red pepper sauce on heartburn perception and secondary peristalsis in healthy adults. METHODS Secondary peristalsis was performed with mid-esophageal injections of air in 15 healthy adults. Two separate protocols including esophageal infusion with saline and capsaicin-contained red pepper sauce and 2 consecutive sessions of capsaicin-contained red pepper sauce were randomly performed. KEY RESULTS After repeated infusion of capsaicin-contained red pepper sauce, the threshold volume to activate secondary peristalsis was significantly increased during slow (p < 0.001) and rapid air injections (p = 0.004). Acute infusion of capsaicin-contained red pepper sauce enhanced heartburn perception (p < 0.001), but the intensity of heartburn perception was significantly reduced after repeated capsaicin-contained red pepper sauce infusion (p = 0.007). Acute infusion of capsaicin-contained red pepper sauce significantly increased pressure wave amplitudes of distal esophagus during slow (p = 0.003) and rapid air injections (p = 0.01), but repeated infusion of capsaicin-contained red pepper sauce significantly decreased pressure wave amplitude of distal esophagus during slow (p = 0.0005) and rapid air injections (p = 0.003). CONCLUSIONS & INFERENCES Repeated esophageal infusion of capsaicin appears to attenuate heartburn perception and inhibit distension-induced secondary peristalsis in healthy adults. These results suggest capsaicin-sensitive afferents in modulating sensorimotor function of secondary peristalsis in human esophagus.
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Affiliation(s)
- T T Liu
- Department of Medicine, Hualien Tzu Chi Hospital, Buddhist Tzu Chi Medical Foundation and Tzu Chi University, Hualien, Taiwan
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Zou Q, Liu M, Wang GQ, Lu HL, Yang TZ, Guo HM, Ma CR, Xu X, Zhang MH, Jiang JC, Meletis EI, Lin Y, Gao HJ, Chen CL. Step terrace tuned anisotropic transport properties of highly epitaxial LaBaCo2O5.5+δ thin films on vicinal SrTiO3 substrates. ACS Appl Mater Interfaces 2014; 6:6704-6708. [PMID: 24716582 DOI: 10.1021/am500422j] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Highly epitaxial LaBaCo2O5.5+δ (LBCO) thin films were grown on different miscut (001) SrTiO3 substrates (miscut angle of 0.5°, 3.0°, and 5.0°) to study the substrate surface step terrace effect on the in-plane electrical transport properties. The microstructure studies by X-ray diffraction and transmission electron microscopy indicate that the as-grown films are A-site disordered cubic perovskite structures with the c-axis highly oriented along the film growth direction. The four-probe scanning tunneling microscopy (STM) studies show that the LBCO thin films grown on the vicinal SrTiO3 substrates have a typical semiconductor behavior with the substrate surface terrace step inducing anisotropic electronic transport properties. These results indicate that in highly epitaxial thin films the surface terrace step induced local strains can play an important role in controlling the electronic transport properties and the anisotropic nature.
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Affiliation(s)
- Q Zou
- Institute of Physics, Chinese Academy of Sciences , Beijing 100080, China
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Liao CC, Chen TY, Tsang LC, Ou SY, Yu CY, Hsu HW, Cheng YF, Chiu KW, Eng HL, Chen CL, Huang TL. The acoustic radiation force impulse elastography evaluation of liver fibrosis in posttransplantation dysfunction of living donor liver transplantation. Transplant Proc 2014; 46:876-9. [PMID: 24767370 DOI: 10.1016/j.transproceed.2013.12.012] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/30/2013] [Revised: 11/25/2013] [Accepted: 12/10/2013] [Indexed: 02/07/2023]
Abstract
BACKGROUND The acoustic radiation force impulse elastography (ARFI) is a new technology of elastography integrated into B-mode ultrasonography. It has been a reliable method to evaluate liver fibrosis of chronic liver disease in recent years, but less applied in the posttransplantation liver. The aim of the study was to evaluate liver fibrosis by the ARFI with correlation of pathological stages in living donor liver transplantation (LDLT). MATERIALS AND METHODS From August 2010 to August 2012, there were 57 LDLT patients with liver biopsy (LB) due to posttransplantation dysfunction; all patients also received posttransplantation ARFI liver stiffness measurement (LSM) after transplantation for liver fibrosis staging. The ARFI elastography was performed using a Siemens Acuson S2000 ultrasound system with 4V1 transducers (Acusion, Siemens Medical Systems Co. Ltd. Erlangen, Germany). The ARFI LSM value was presented by shear wave velocity (SWV, m/s). The fibrosis staging as F0 to F4 was in accordance with the Metavir scoring system. RESULTS A total of 57 patients had both posttransplantation LB and effective ARFI fibrosis staging for correlation. The ARFI LSM value increased with severity of liver fibrosis and had significant linear correlation with the results of histological fibrosis staging. The ARFI LSM sensitivities (Se), specificities (Sp), and cutoff values based on receiver-operator characteristic curve were F0: 0.75 m/s (Se: 93.8%, Sp: 4%), F1: 1.06 m/s (Se: 95.5%, Sp: 25.7%), F2: 1.81 m/s (Se: 50%, Sp: 83.6%) and F3: 2.33 m/s (Se: 100%, Sp: 92.9%). Predictive value of ARFI LSM reported a significant difference between early fibrosis stage (F0-F1) and advanced fibrosis stage (F ≧ 2) (P < .05). CONCLUSION In this study, ARFI demonstrated a strong linear correlation and severity of liver fibrosis with LB pathologic staging. ARFI can be an alternative and compensatory method for frequent LB in the posttransplantation liver.
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Affiliation(s)
- C C Liao
- Liver Transplantation Program, Department of Diagnostic Radiology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - T Y Chen
- Liver Transplantation Program, Department of Diagnostic Radiology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - L C Tsang
- Liver Transplantation Program, Department of Diagnostic Radiology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - S Y Ou
- Liver Transplantation Program, Department of Diagnostic Radiology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - C Y Yu
- Liver Transplantation Program, Department of Diagnostic Radiology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - H W Hsu
- Liver Transplantation Program, Department of Diagnostic Radiology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - Y F Cheng
- Liver Transplantation Program, Department of Diagnostic Radiology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - K W Chiu
- Liver Transplantation Program, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - H L Eng
- Liver Transplantation Program, Department of Pathology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - C L Chen
- Liver Transplantation Program, Department of General Surgery, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - T L Huang
- Liver Transplantation Program, Department of Diagnostic Radiology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan.
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Ma CR, Liu M, Liu J, Collins G, Zhang YM, Wang HB, Chen CL, Lin Y, He J, Jiang JC, Meletis EI, Jacobson AJ. Interface effects on the electronic transport properties in highly epitaxial LaBaCo2O(5.5+δ) films. ACS Appl Mater Interfaces 2014; 6:2540-2545. [PMID: 24467686 DOI: 10.1021/am404951v] [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] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
Single-crystalline perovskite LaBaCo2O5.5+δ thin films were grown on a (110) NdGaO3 single-crystal substrate in order to systematically investigate the effect of lattice mismatch on the electrical transport properties in comparison to the films on LaAlO3, SrTiO3, and MgO substrates. Microstructure studies reveal that all of the LaBaCo2O5.5+δ films are of excellent quality with atomically sharp interface structures. The electrical and magnetic transport property studies indicate that the resistivity, magnetoresistance, and magnetic moment of the film are very sensitive to the substrate materials because of the lattice mismatch/interface strain. The Curie temperature, however, is almost independent of the strain imposed by the substrate, probably because of the strong coupling between the nanodomain boundary and interface strain.
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Affiliation(s)
- C R Ma
- Department of Physics and Astronomy, University of Texas at San Antonio , San Antonio, Texas 78249, United States
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Abstract
Graphene has attracted increasing attention in different scientific fields including catalysis. Via modification with foreign metal-free elements such as nitrogen, its unique electronic and spin structure can be changed and these doped graphene sheets have been successfully employed in some catalytic reactions recently, showing them to be promising catalysts for a wide range of reactions. In this review, we summarize the recent advancements of these new and interesting catalysts, with an emphasis on the universal origin of their catalytic mechanisms. We are full of hope for future developments, such as more precisely controlled doping methods, atom-scale surface characterization technology, generating more active catalysts via doping, and finding wide applications in many different fields.
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Affiliation(s)
- Xiang-Kai Kong
- Hefei National Laboratory for Physical Sciences at Microscale and Department of Materials Science & Engineering, University of Science and Technology of China, Hefei, China.
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Lin MC, Lee CF, Lin CL, Wu YC, Wang HE, Chen CL, Sung FC, Kao CH. Dental diagnostic X-ray exposure and risk of benign and malignant brain tumors. Ann Oncol 2013; 24:1675-9. [PMID: 23406732 DOI: 10.1093/annonc/mdt016] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/26/2022] Open
Abstract
BACKGROUND This study evaluates the risk of benign brain tumors (BBTs) and malignant brain tumors (MBTs) associated with dental diagnostic X-ray, using a large population-based case-control study. MATERIALS AND METHODS We identified 4123 BBT cases and 16 492 controls without BBT (study 1) and 197 MBT cases and 788 controls without MBT (study 2) from Taiwan National Health Insurance claim data. The risks of both types of tumor were estimated in association with the frequency of received dental diagnostic X-ray. RESULTS The mean ages were ~44.2 years in study 1 and 40.6 years in study 2. Multivariable unconditional logistic regression analysis showed that the risk of BBT increases as the frequency of received dental diagnostic X-ray increases. The BBT odds ratio increased from 1.33 [95% confidence interval (CI) 1.22-1.44] for those with annual mean X-ray examination of less than one to 1.65 (95% CI 1.37-1.98) for those with three or more X-ray examinations, after controlling for comorbidities. No significant association was found between MBTs and dental diagnostic X-ray exposure. CONCLUSIONS Exposure to dental diagnostic X-rays in oral and maxillofacial care increases the risk of BBTs, but not MBTs.
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Affiliation(s)
- M C Lin
- Department of Nuclear Medicine, E-DA Hospital, I-Shou University, Kaohsiung, Taiwan
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Abstract
The purpose of this study is to apply combined multichannel intraluminal impedance and esophageal manometry (MII-EM) to test esophageal function during solid swallowing in a normal healthy population. We determined whether combined MII-EM with solid bolus is more sensitive than that with viscous bolus in the detection of motility abnormality. Eighteen healthy volunteers (11 men and 7 women; mean age 22 years, range 20-26 years) underwent combined MII-EM with a catheter containing four impedance-measuring segments and five solid-state pressure transducers. Each subject received 10 viscous and 10 solid materials. Tracings were analyzed manually for bolus presence time, total bolus transit time, contraction amplitude, duration, and onset velocity. Three hundred and sixty swallows including viscous and solid materials were analyzed. Contraction amplitude for the viscous swallows was higher at 20 cm above the lower esophageal sphincter (LES) (P= 0.049) but lower at 15 cm above the LES (P < 0.001). Duration of contractions for the solid swallows was longer at 15 cm (P= 0.002) and 10 cm above the LES (P= 0.011) compared with viscous swallows. The total bolus transit time for solid was significantly shorter than that for viscous boluses (6.8 vs. 7.7 seconds, P < 0.001). Bolus presence time appeared to be similar between viscous and solid boluses (except in the proximal esophagus). The percentage of swallows with ineffective peristalsis by manometry, as well as those with incomplete bolus transit by impedance, did not differ between viscous and solid swallows. The proportion of manometrically ineffective solid swallows with incomplete bolus transit was greater than that of viscous swallows (62.1% vs. 34.8%, P= 0.05). Application of solid boluses may potentially enhance diagnostic capability of esophageal function testing. Solid boluses can be regarded as a valuable complement to viscous boluses in the detection of esophageal motility abnormalities when applied with combined MII-EM.
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Affiliation(s)
- C L Chen
- Department of Medicine Radiology, Buddhist Tzu Chi General Hospital and Tzu Chi University, #707 Section 3 Chung-Yang Road, Hualien, Taiwan.
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Baker A, Julienne H, Chen CL, Audit B, d'Aubenton-Carafa Y, Thermes C, Arneodo A. Linking the DNA strand asymmetry to the spatio-temporal replication program. I. About the role of the replication fork polarity in genome evolution. Eur Phys J E Soft Matter 2012; 35:92. [PMID: 23001787 DOI: 10.1140/epje/i2012-12092-y] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/06/2012] [Revised: 08/08/2012] [Accepted: 08/21/2012] [Indexed: 06/01/2023]
Abstract
Two key cellular processes, namely transcription and replication, require the opening of the DNA double helix and act differently on the two DNA strands, generating different mutational patterns (mutational asymmetry) that may result, after long evolutionary time, in different nucleotide compositions on the two DNA strands (compositional asymmetry). We elaborate on the simplest model of neutral substitution rates that takes into account the strand asymmetries generated by the transcription and replication processes. Using perturbation theory, we then solve the time evolution of the DNA composition under strand-asymmetric substitution rates. In our minimal model, the compositional and substitutional asymmetries are predicted to decompose into a transcription- and a replication-associated components. The transcription-associated asymmetry increases in magnitude with transcription rate and changes sign with gene orientation while the replication-associated asymmetry is proportional to the replication fork polarity. These results are confirmed experimentally in the human genome, using substitution rates obtained by aligning the human and chimpanzee genomes using macaca and orangutan as outgroups, and replication fork polarity determined in the HeLa cell line as estimated from the derivative of the mean replication timing. When further investigating the dynamics of compositional skew evolution, we show that it is not at equilibrium yet and that its evolution is an extremely slow process with characteristic time scales of several hundred Myrs.
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Affiliation(s)
- A Baker
- Université de Lyon, Lyon, France
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Chang SC, Hsuan SL, Lin CC, Lee WC, Chien MS, Chen LC, Wu JH, Cheng SJ, Chen CL, Liao JW. Probable Blastomyces dermatitidis infection in a young rat. Vet Pathol 2012; 50:343-6. [PMID: 22711744 DOI: 10.1177/0300985812451624] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/28/2022]
Abstract
A 21-week-old male untreated control SHR/NCrlNarl rat was found dead during an experiment. Grossly, pulmonary lesions were characterized by multifocal to coalescing firm gray-white nodules randomly scattered on the surface. Microscopically, bronchopneumonia was found with pyogranulomas containing neutrophils, macrophages, and numerous thick-walled yeast cells. Yeast cells, 5 to 25 μm in diameter, with no branching of hyphae were observed by staining with hematoxylin and eosin, Diff-Quik, and periodic acid-Schiff. Furthermore, polymerase chain reaction (PCR) using panfungal and nested PCR primers were used for detection of Blastomyces dermatitidis DNA in the lung tissue. After sequencing and matching with DNA sequences in the GenBank, the sample showed a similarity of 94.6% and 97% to Ajellomyces dermatitidis (B. dermatitidis), respectively. On the basis of these results, probable pulmonary blastomycosis was diagnosed. The origin of the infection in the colony rat is undetermined.
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Affiliation(s)
- S C Chang
- Department of Veterinary Medicine and Veterinary Medical Teaching Hospital, National Chung-Hsing University, Taichung, Taiwan, ROC
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Tai TY, Tsai KS, Tu ST, Wu JS, Chang CI, Chen CL, Shaw NS, Peng HY, Wang SY, Wu CH. The effect of soy isoflavone on bone mineral density in postmenopausal Taiwanese women with bone loss: a 2-year randomized double-blind placebo-controlled study. Osteoporos Int 2012; 23:1571-80. [PMID: 21901480 PMCID: PMC3332377 DOI: 10.1007/s00198-011-1750-7] [Citation(s) in RCA: 60] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/15/2010] [Accepted: 06/21/2011] [Indexed: 11/30/2022]
Abstract
UNLABELLED The treatment of 300-mg/day isoflavones (aglycone equivalents) (172.5 mg genistein + 127.5 mg daidzein) for 2 years failed to prevent lumbar spine and total proximal femur bone mineral density (BMD) from declining as compared with the placebo group in a randomized, double-blind, two-arm designed study enrolling 431 postmenopausal women 45-65 years old. INTRODUCTION This study evaluated the effects of soy isoflavones on bone metabolism in postmenopausal women. METHODS Four hundred and thirty-one women, aged 45-65 years, orally consumed 300-mg/day isoflavones (aglycone equivalents) or a placebo for 2 years in a parallel group, randomized, double-blind, two-arm study. Each participant also ingested 600 mg of calcium and 125 IU of vitamin D(3) per day. The BMD of the lumbar spine and total proximal femur were measured using dual-energy X-ray absorptiometry at baseline and every half-year thereafter. Serum bone-specific alkaline phosphatase, urinary N-telopeptide of type 1 collagen/creatinine, and other safety assessments were examined regularly. RESULTS Two hundred out of 217 subjects in the isoflavone group and 199 out of 214 cases in placebo group completed the treatment. Serum concentrations of isoflavone metabolites, genistein and daidzein, of the intervention group were remarkably elevated following intake of isoflavones (p < 0.001). However, differences in the mean percentage changes of BMD throughout the treatment period were not statistically significant (lumbar spine, p = 0.42; total femur, p = 0.39) between the isoflavone and placebo groups, according to the generalized estimating equation (GEE) method. A significant time trend of bone loss was observed at both sites as assessed by the GEE method following repeated measurement of BMD (p < 0.001). Differences in bone marker levels were not significant between the two treatment groups. CONCLUSION Treatment with 300-mg/day isoflavones (aglycone equivalents) failed to prevent a decline in BMD in the lumbar spine or total femur compared with the placebo group.
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Affiliation(s)
- T Y Tai
- Division of Geriatric Research, Institute of Population Health Sciences, National Health Research Institutes, Taipei, Taiwan.
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