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Wu TS, Wu PH, Lin HF, Chen WC, Huang TH, Lin MY, Chuang YS, Yang FPG, Chiu YW, Chang JM, Kuo MC, Lin YT. Cerebral white matter burden is linked to cognitive function in patients undergoing hemodialysis. Ann Med 2024; 56:2310142. [PMID: 38324920 PMCID: PMC10851831 DOI: 10.1080/07853890.2024.2310142] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2023] [Accepted: 01/21/2024] [Indexed: 02/09/2024] Open
Abstract
INTRODUCTION Chronic kidney disease is related to neurodegeneration and structural changes in the brain which might lead to cognitive decline. The Fazekas scale used for assessing white matter hyperintensities (WMHs) was associated with poor cognitive performance. Therefore, this study investigated the associations between the mini-mental status examination (MMSE), Montreal cognitive assessment (MoCA), cognitive abilities screening instrument (CASI), and Fazekas scale in patients under hemodialysis (HD). METHODS The periventricular (PV) WMHs and deep WMHs (DWMHs) in brain magnetic resonance images of 59 patients under dialysis were graded using the Fazekas scale. Three cognition function tests were also performed, then multivariable ordinal regression and logistic regression were used to identify the associations between cognitive performance and the Fazekas scale. RESULTS There were inverse associations between the three cognitive function tests across the Fazekas scale of PVWMHs (p = .037, .006, and .008 for MMSE, MoCA, and CASI, respectively), but the associations were attenuated in the DWMHs group. In CASI, significant differences were identified in short-term memory, mental manipulation, abstract thinking, language, spatial construction, and name fluency in the PVWMHs group. However, DWMHs were only significantly correlated with abstract thinking and short-term memory. CONCLUSION An inverse correlation existed between the Fazekas scale, predominantly in PVWMHs, and cognition in patients undergoing HD. The PVWMHs were associated with cognitive performance assessed by MMSE, MoCA, and CASI, as well as with subdomains of CASI such as memory, language and name fluency in patients undergoing HD.
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Affiliation(s)
- Tsai-Shan Wu
- Department of General Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Ping-Hsun Wu
- Division of Nephrology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
- Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
- Center for Big Data Research, Kaohsiung Medical University, Kaohsiung City, Taiwan
| | - Hsiu-Fen Lin
- Department of Neurology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Wen-Ching Chen
- Department of Neurology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Teng-Hui Huang
- Division of Nephrology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Ming-Yen Lin
- Division of Nephrology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Yun-Shiuan Chuang
- Center for Big Data Research, Kaohsiung Medical University, Kaohsiung City, Taiwan
- Department of Family Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Fan-Pei Gloria Yang
- Department of Foreign Languages and Literature, National Tsing Hua University, Hsinchu, Taiwan
- Center for Cognition and Mind Sciences, National Tsing Hua University, Hsinchu, Taiwan
- Department of Radiology, Graduate School of Dentistry, Osaka University, Suita, Japan
| | - Yi-Wen Chiu
- Division of Nephrology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
- Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Jer-Ming Chang
- Division of Nephrology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
- Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Mei-Chuan Kuo
- Division of Nephrology, Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
- Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yi-Ting Lin
- Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
- Center for Big Data Research, Kaohsiung Medical University, Kaohsiung City, Taiwan
- Department of Family Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
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Chen WC, Wu YC, Huang P. Succimer chelation in a patient with mercury-associated parkinsonism. Clin Toxicol (Phila) 2024; 62:65-66. [PMID: 38214213 DOI: 10.1080/15563650.2023.2298883] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/18/2023] [Accepted: 12/19/2023] [Indexed: 01/13/2024]
Affiliation(s)
- Wen-Ching Chen
- Department of Neurology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yen-Chen Wu
- School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Poyin Huang
- Department of Neurology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
- Department of Neurology, Kaohsiung Municipal Siaogang Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
- Neuroscience Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan
- Dysphagia Functional Reconstructive Center, Kaohsiung Municipal Siaogang Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
- Multidisciplinary Swallowing Center, Kaohsiung Municipal Siaogang Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
- Department of Neurology, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
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Yu CH, Au-Yeung KC, Liu R, Lee CH, Jiang D, Semagne Aweke B, Wu CH, Wang YJ, Wang TH, Voon Kong K, Yap GPA, Chen WC, Frenking G, Zhao L, Ong TG. Diversification of the Carbodicarbene Class by Embedding an Anionic Component in its Scaffold. Chemistry 2023; 29:e202302886. [PMID: 37730960 DOI: 10.1002/chem.202302886] [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: 09/05/2023] [Revised: 09/19/2023] [Accepted: 09/19/2023] [Indexed: 09/22/2023]
Abstract
Carbodicarbene (CDC) has become an emerging ligand in many fields due to its strong σ-donating ability.
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Affiliation(s)
- Cheng-Han Yu
- Institute of chemistry, Academia Sinica, Taipei, Taiwan (R.O.C., 115201
| | - Ka-Chun Au-Yeung
- Institute of chemistry, Academia Sinica, Taipei, Taiwan (R.O.C., 115201
- Corporate R&D Center, LCY Chemical Corporation, Kaohsiung, Taiwan (R.O.C
| | - Ruiqin Liu
- School of Chemistry and Molecular Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing, China
| | - Chao-Hsien Lee
- Institute of chemistry, Academia Sinica, Taipei, Taiwan (R.O.C., 115201
| | - Dandan Jiang
- School of Chemistry and Molecular Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing, China
| | - Bamlaku Semagne Aweke
- Institute of chemistry, Academia Sinica, Taipei, Taiwan (R.O.C., 115201
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, Hsinchu, Taiwan (R.O.C
- Sustainable Chemical Science and Technology, Taiwan International Graduate Program, Academia Sinica, Taipei, Taiwan (R.O.C
| | - Chia-Hung Wu
- Institute of chemistry, Academia Sinica, Taipei, Taiwan (R.O.C., 115201
- Department of Chemistry, National Taiwan University, Taipei, Taiwan (R.O.C
| | - Yu-Jou Wang
- Institute of chemistry, Academia Sinica, Taipei, Taiwan (R.O.C., 115201
- Department of Chemistry, National Taiwan University, Taipei, Taiwan (R.O.C
| | - Ting-Hsuan Wang
- Institute of chemistry, Academia Sinica, Taipei, Taiwan (R.O.C., 115201
| | - Kien Voon Kong
- Department of Chemistry, National Taiwan University, Taipei, Taiwan (R.O.C
| | - Glenn P A Yap
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware, United States
| | - Wen-Ching Chen
- Institute of chemistry, Academia Sinica, Taipei, Taiwan (R.O.C., 115201
| | - Gernot Frenking
- School of Chemistry and Molecular Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing, China
- Fachbereich Chemie, Philipps-Universität Marburg, Hans-Meerwein-Strasse, D-35043, Marburg, Germany
| | - Lili Zhao
- School of Chemistry and Molecular Engineering, State Key Laboratory of Materials-Oriented Chemical Engineering, Nanjing Tech University, Nanjing, China
| | - Tiow-Gan Ong
- Institute of chemistry, Academia Sinica, Taipei, Taiwan (R.O.C., 115201
- Department of Chemistry, National Taiwan University, Taipei, Taiwan (R.O.C
- Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung, Taiwan (R.O.C
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Cheng PW, Tsai RA, Lee CH, Chen WC. Chronic subdural haematoma mimicking extrapyramidal symptoms. BMJ Case Rep 2023; 16:e255286. [PMID: 38050397 PMCID: PMC10693859 DOI: 10.1136/bcr-2023-255286] [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] [Accepted: 11/07/2023] [Indexed: 12/06/2023] Open
Abstract
A male patient in his 70s with chronic schizophrenia, who could previously walk independently, developed a gait disturbance without any significant neurological deficit. Initially, his short step length and unstable gait were thought to be related to extrapyramidal symptoms caused by medication side effects. We tapered his antipsychotic medication, but the unstable gait persisted. After 2 weeks of observation, we noted general weakness with left-side dominance, leading us to consider a focal brain lesion despite there being no recent history of falling or trauma. A CT scan of the brain showed chronic subdural haematoma and the patient underwent emergency surgery. After 14 days of treatment, he was discharged back to the chronic ward.
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Affiliation(s)
- Po Wen Cheng
- General Psychiatry Department, Yuli Hospital, Ministry of Health and Welfare, Hualien, Taiwan
| | - Ruei An Tsai
- General Psychiatry Department, Yuli Hospital, Ministry of Health and Welfare, Hualien, Taiwan
| | - Chien-Hui Lee
- Department of Neurosurgery, Buddhist Tzu-Chi General Hospital and Tzu-Chi University, Hualien, Taiwan
| | - Wen-Ching Chen
- General Psychiatry Department, Yuli Hospital, Ministry of Health and Welfare, Hualien, Taiwan
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Chang J, Shen FT, Lai WA, Liao CS, Chen WC. Co-exposure of dimethomorph and imidacloprid: effects on soil bacterial communities in vineyard soil. Front Microbiol 2023; 14:1249167. [PMID: 38029114 PMCID: PMC10653314 DOI: 10.3389/fmicb.2023.1249167] [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] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/19/2023] [Accepted: 10/09/2023] [Indexed: 12/01/2023] Open
Abstract
In Taiwan, the pesticides dimethomorph and imidacloprid are recommended for pest control in vineyards. Therefore, tank-mixing of these two pesticides is usually a routine practice before application. This study analyzed the influence of vineyard soil microbial flora under the recommended and high dosages (100 times the recommended dosage) of dimethomorph and imidacloprid. Individual and combined applications of pesticides were also tested through batches of soil incubation experiments. Four treatments-control (C), dimethomorph (DT), imidacloprid (IM), and mixed application of dimethomorph and imidacloprid (ID)-were used in the experimental design. From the soil metabolism, no significant reaction was observed after 2 months in the recommended dosage group, regardless of whether the pesticides were being applied individually or combined. For the high dosage, imidacloprid showed a higher effect than the co-exposure treatments, showing a possible prolonged effect after its repetitive application. From PCoA analysis, pesticide treatments altered the soil ecology after 2 months, and the effect of imidacloprid can be explicitly observed at high dosages. At the phylum level, Acidobacteria can indicate pesticide application around the recommended dosage. It was inhibited by ID on day 7 and was augmented by all pesticides on day 63. The effect of the recommended dosage of pesticide mixtures after 2 months of incubation was revealed in the minor families Gemmataceae and Pirellulaceae, while the high dosage treatments affected both the core and the minor families. Our findings verified the changes in the composition of microbial communities upon pesticide application, which would affect carbon, nitrogen, sulfur, phosphorous cycles, and contaminant removal ability within the vineyard.
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Affiliation(s)
- Jean Chang
- International Master Program in Agriculture, National Chung Hsing University, Taichung, Taiwan
| | - Fo-Ting Shen
- Department of Soil and Environmental Science, National Chung Hsing University, Taichung, Taiwan
- Innovation and Development Center of Sustainable Agriculture (IDCSA), National Chung Hsing University, Taichung, Taiwan
| | - Wei-An Lai
- Department of Soil and Environmental Science, National Chung Hsing University, Taichung, Taiwan
| | - Chien-Sen Liao
- Department of Medical Science & Biotechnology, I-Shou University, Kaohsiung, Taiwan
| | - Wen-Ching Chen
- International Bachelor Program in Agribusiness, National Chung Hsing University, Taichung, Taiwan
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Liu RR, Gu SZ, Zhou T, Lin LZ, Chen WC, Zhong DS, Liu TS, Yang N, Shen L, Xu SY, Lu N, Zhang Y, Gong ZL, Xu JM. [A phase I study of subcutaneous envafolimab (KN035) monotherapy in Chinese patients with advanced solid tumors]. Zhonghua Zhong Liu Za Zhi 2023; 45:898-903. [PMID: 37875426 DOI: 10.3760/cma.j.cn112152-20220530-00373] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 10/26/2023]
Abstract
Objective: To evaluate the safety and antitumor activity of envafolimab monotherapy in Chinese patients with advanced solid tumors. Methods: This open-label, multicenter phase I trial included dose escalation and dose expansion phases. In the dose escalation phase, patients received subcutaneous 0.1, 0.3, 1.0, 2.5, 5.0 or 10.0 mg/kg envafolimab once weekly (QW) following a modified "3+ 3" design. The dose expansion phase was performed in the 2.5 mg/kg and 5.0 mg/kg (QW) dose cohorts. Results: At November 25, 2019, a total of 287 patients received envafolimab treatment. During the dose escalation phase, no dose-limiting toxicities (DLT) was observed. In all dose cohorts, drug-related treatment-emergent adverse events (TEAEs) for all grades occurred in 75.3% of patients, and grade 3 or 4 occurred in 20.6% of patients. The incidence of immune-related adverse reactions (irAE) was 24.0% for all grades, the most common irAEs (≥2%) included hypothyroidism, hyperthyroidism, immune-associated hepatitis and rash. The incidence of injection site reactions was low (3.8%), all of which were grades 1-2. Among the 216 efficacy evaluable patients, the objective response rate (ORR) and disease control rate (DCR) were 11.6% and 43.1%, respectively. Median duration of response was 49.1 weeks (95% CI: 24.0, 49.3). Pharmacokinetic (PK) exposure to envafolimab is proportional to dose and median time to maximum plasma concentration is 72-120 hours based on the PK results from the dose escalation phase of the study. Conclusion: Subcutaneous envafolimab has a favorable safety and promising preliminary anti-tumor activity in Chinese patients with advanced solid tumors.
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Affiliation(s)
- R R Liu
- Department of Medical Oncology, Senior Department of Oncology, the Fifth Medical Center of PLA General Hospital, Beijing 100071, China
| | - S Z Gu
- Department of Interventional Radiology, Hunan Cancer Hospital, Changsha 410031, China
| | - T Zhou
- Department of Urology, Changhai Hospital of Shanghai, Shanghai 200433, China
| | - L Z Lin
- Cancer Center, the First Affiliated Hospital of Guangzhou University of Chinese Medicine, Guangzhou 510405, China
| | - W C Chen
- Department of Gastroenterology, First Affiliated Hospital to Soochow University, Suzhou 215006, China
| | - D S Zhong
- Department of Medical Oncology, Tianjin Medical University General Hospital, Tianjin 300052, China
| | - T S Liu
- Department of Medical Oncology, Zhongshan Hospital, Fudan University, Shanghai 200032, China
| | - N Yang
- Lung Cancer and Gastrointestinal Unit, Hunan Cancer Hospital, Changsha 410031, China
| | - L Shen
- Department of Gastrointestinal Oncology, Peking University Cancer Hospital, Beijing 100142, China
| | - S Y Xu
- 3D Medicines Co. Ltd, Chengdu 610036, China
| | - N Lu
- 3D Medicines Co. Ltd, Chengdu 610036, China
| | - Y Zhang
- 3D Medicines Co. Ltd, Chengdu 610036, China
| | - Z L Gong
- 3D Medicines Co. Ltd, Chengdu 610036, China
| | - J M Xu
- Department of Medical Oncology, Senior Department of Oncology, the Fifth Medical Center of PLA General Hospital, Beijing 100071, China
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Chen WC, Lin CW, Wu MN, Fong YO, Chen CH, Hsieh SW, Chen CYE, Huang P. Consistencies among miscellaneous scales for evaluation of post-stroke dysphagia. Eur Arch Otorhinolaryngol 2023; 280:4561-4567. [PMID: 37428229 DOI: 10.1007/s00405-023-08101-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2023] [Accepted: 06/28/2023] [Indexed: 07/11/2023]
Abstract
PURPOSE Post-stroke dysphagia (PSD) is the most common type of dysphagia. Stroke patients with sustained dysphagia have poorer outcomes. The severity of PSD is assessed using miscellaneous scales with unknown consistencies. We aim to investigate the consistencies among miscellaneous scales, which could aid in the assessment of PSD. METHODS A total of 49 PSD patients were enrolled. Functional Oral Intake Scale (FOIS), Dysphagia Severity Scale (DSS), Ohkuma Questionnaire, Eating Assessment Tool-10, and Repetitive Saliva Swallowing Test were performed. FOIS was performed by physicians, and DSS was conducted by both the physicians and nurses; the physicians used either videofluoroscopy (VF) or videoendoscopy (VE) for evaluation; while, the nurses assessed PSD by observation and subjective judgment. RESULTS When using VF (VF-DSS and VF-FOIS) as the gold standard for the evaluation, VE-FOIS (κ = 0.625, 95% CI 0.300-0.950, p < 0.001) has a substantial agreement with VF-FOIS, and VE-DSS (κ = 0.381, 95% CI 0.127-0.636, p = 0.007) has a fair agreement with VF-DSS. The weighted kappa of FOIS to DSS in VE (weighted κ = 0.577, 95% CI 0.414-0.740, p < 0.001) is not lower than that in VF (weighted kappa = 0.249, 95% CI 0.136-0.362, p < 0.001). CONCLUSION For both DSS and FOIS, only VE has a statistically significant agreement with VF. Though VF has been viewed as the traditional gold standard of dysphagia screening, it has the limitations of being invasive and equipment dependent. For PSD, VE could be considered as a substitution when VF is not available or suitable.
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Affiliation(s)
- Wen-Ching Chen
- Department of Neurology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, No.100 , Tzyou 1st Road, Kaohsiung City, 807, Taiwan
| | - Chung-Wei Lin
- Department of Education, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan
- School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Meng-Ni Wu
- Department of Neurology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, No.100 , Tzyou 1st Road, Kaohsiung City, 807, Taiwan
| | - Yi-On Fong
- Department of Neurology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, No.100 , Tzyou 1st Road, Kaohsiung City, 807, Taiwan
| | - Chun-Hung Chen
- Department of Neurology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, No.100 , Tzyou 1st Road, Kaohsiung City, 807, Taiwan
- Department of Neurology, Kaohsiung Municipal Siaogang Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
- Neuroscience Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan
- Dysphagia Functional Reconstructive Center, Kaohsiung Municipal Siaogang Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
- Multidisciplinary Swallowing Center, Kaohsiung Municipal Siaogang Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Sun-Wung Hsieh
- Department of Neurology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, No.100 , Tzyou 1st Road, Kaohsiung City, 807, Taiwan
- Department of Neurology, Kaohsiung Municipal Siaogang Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
- Neuroscience Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan
- Dysphagia Functional Reconstructive Center, Kaohsiung Municipal Siaogang Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
- Department of Neurology, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chih-Yin Elizabeth Chen
- Department of General Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Poyin Huang
- Department of Neurology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, No.100 , Tzyou 1st Road, Kaohsiung City, 807, Taiwan.
- Department of Neurology, Kaohsiung Municipal Siaogang Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.
- Neuroscience Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan.
- Dysphagia Functional Reconstructive Center, Kaohsiung Municipal Siaogang Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.
- Multidisciplinary Swallowing Center, Kaohsiung Municipal Siaogang Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.
- Department of Neurology, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.
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Liu SJ, Chen WC, Zhang Y, Young JS, Morshed RA, Nguyen MP, Villanueva-Meyer J, Phillips J, Oberheim NA, Aghi MK, Sneed PK, Braunstein SE, de Groot J, Berger MS, Molinaro AM, Hervey-Jumper S, Raleigh D. Adjuvant Chemoradiotherapy within One Year of Resection for Molecularly Defined Astrocytoma. Int J Radiat Oncol Biol Phys 2023; 117:e130-e131. [PMID: 37784692 DOI: 10.1016/j.ijrobp.2023.06.930] [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: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Treatments for diffuse low-grade gliomas (LGG) are controversial. Level I evidence supports the use of adjuvant radiotherapy (RT) and PCV chemotherapy for histologic LGG, but integration of molecular biomarkers in recent WHO classification and the emergence of temozolomide chemotherapy for gliomas necessitates additional investigation of the optimal treatment and timing of postoperative interventions. We hypothesized molecularly-defined LGG (IDH-mutant astrocytoma (astro) and IDH-mutant, 1p/19q-codeleted oligodendroglioma (oligo)) may have different clinical outcomes following adjuvant RT (aRT) with chemotherapy (aRT+chemo) vs observation or chemo alone. MATERIALS/METHODS A retrospective analysis of consecutive adult patients diagnosed with WHO Grade 2 astrocytoma or oligodendroglioma who underwent initial resection at a single institution from January 1998 to November 2017 was performed. Wilcoxon rank sum and Chi-squared tests were used to compare continuous and categorical variables, respectively. Survival analyses were performed using the Kaplan-Meier method and Cox proportional hazards models. Patients without clinical progression or death were censored at the date of last follow-up. Pre-operative and post-operative T2 FLAIR hyperintense tumor volumes were quantified using 3D Slicer to calculate extent of resection (EOR). RESULTS A total of 342 patients with molecularly-defined LGG (178 astro, 164 oligo) were identified with a median follow up of 9.1 yr. 171 (50%) patients received RT during their treatment course, of which 31 (18%) were treated with aRT within 1 year of diagnosis. The median aRT dose was 54 Gy (range: 40-60 Gy). aRT was more likely for astro (58%) vs oligo (41%, p = 0.001) and for patients who had resections with lower median EOR (88% vs 95%, p = 0.014). 53 patients (15%) were treated with chemo alone, and 136 patients (40%) were treated with aRT+chemo. Temozolomide was used for 161 patients (85%). For astro, aRT+chemo was associated with longer PFS (median 14.9 yr) compared to observation (4.8 yr, p = 0.05), aRT without chemo (5.2 yr, p = 0.01), or chemo alone (4.7 yr, p = 0.02). For oligo, aRT+chemo was associated with longer PFS (median not reached) compared to aRT without chemo (1.6 yr, p = 0.03), but not when compared to observation (median not reached, p = 0.47), or chemo alone (7.9 yr, p = 0.45). Multivariate analysis showed preoperative tumor volume, EOR, and aRT+chemo (but not aRT or chemo alone) were independently associated with astro PFS compared to observation. Propensity matching based on pre-operative tumor volume, EOR, and age demonstrated longer astro PFS after aRT+chemo (14.9 yr) compared to observation or chemo alone (4.5 yr, p = 0.015), without significant difference in OS (18.2 vs. 11.5 yr, p = 0.40). CONCLUSION Retrospective data from a single institution support the use of adjuvant radiotherapy with chemotherapy for patients with molecular astrocytomas, while the role of this approach for oligodendrogliomas is unclear in this cohort.
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Affiliation(s)
- S J Liu
- University of California San Francisco, Department of Radiation Oncology, San Francisco, CA
| | - W C Chen
- University of California San Francisco, San Francisco, CA
| | - Y Zhang
- University of California San Francisco, Department of Epidemiology and Biostatistics, San Francisco, CA
| | - J S Young
- University of California San Francisco, Department of Neurological Surgery, San Francisco, CA
| | - R A Morshed
- University of California San Francisco, Department of Neurological Surgery, San Francisco, CA
| | - M P Nguyen
- University of California, San Francisco, Department of Radiation Oncology, San Francisco, CA
| | | | - J Phillips
- University of California San Francisco, Department of Neurological Surgery, San Francisco, CA
| | - N A Oberheim
- University of California San Francisco, Department of Neurological Surgery, San Francisco, CA
| | - M K Aghi
- University of California San Francisco, Department of Neurological Surgery, San Francisco, CA
| | - P K Sneed
- University of California San Francisco, Department of Radiation Oncology, San Francisco, CA
| | - S E Braunstein
- University of California San Francisco, Department of Radiation Oncology, San Francisco, CA
| | - J de Groot
- University of California, San Francisco, San Francisco, CA
| | - M S Berger
- University of California San Francisco, Department of Neurological Surgery, San Francisco, CA
| | - A M Molinaro
- University of California San Francisco, Department of Epidemiology and Biostatistics, San Francisco, CA
| | - S Hervey-Jumper
- University of California San Francisco, Department of Neurological Surgery, San Francisco, CA
| | - D Raleigh
- University of California San Francisco, Department of Radiation Oncology, San Francisco, CA
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Wu Y, Chen YQ, Shi TG, Tan NJ, Chen WC. [Study of immunophenotypic characteristics, clinicopathological parameters and prognosis in gastric cancer microenvironment]. Zhonghua Yi Xue Za Zhi 2023; 103:2786-2794. [PMID: 37723053 DOI: 10.3760/cma.j.cn112137-20230314-00394] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 09/20/2023]
Abstract
Objective: To explore the immunophenotypic characteristics of gastric cancer microenvironment and analyze its correlation with clinicopathological parameters and prognosis of patients. Methods: The expression levels of leukocyte differentiation antigen (CD) 8, CD4, T lymphocyte immunoglobulin mucoprotein 3 (TIM3), human forkhead box protein P3 (Foxp3) and co-localized tumor infiltrating lymphocytes (TILs) were detected in 92 cases of gastric cancer tissue [58 males and 34 females; aged M(Q1, Q3), 70(59, 77) years ] and 84 cases of paracancer tissue [57 males and 27 females, aged 70(59, 77) years] purchased from Shanghai Xinchao Biotechnology Co., Ltd., and the samples were from 28 hospitals in the sample bank. Gastric cancer and adjacent tissues were divided into high expression group and low expression group according to the optimal cut-off value of positive lymphocytepercentage. The expression of immunophenotypes in gastric cancer and adjacent tissues was analyzed. Kaplan-Meier method was used for survival analysis. Cox proportional hazard model was used to explore the prognostic factors of gastric cancer patients. Results: The optimal cut-off values of CD8, CD4, TIM3 and Foxp3 positive cells in gastric cancer were 12.73%, 1.39%, 10.77% and 2.44%, respectively. The expression of Foxp3 in gastric cancer tissues was higher than that in paracancer tissues [M (Q1, Q3), 0.93 (0.45, 2.16) vs 0.31 (0.09, 0.86), P<0.001], and the expression of CD8 [4.92 (2.34, 8.80) vs 8.81 (6.61, 12.17), P<0.001], CD4 [4.79 (1.77, 11.36) vs 8.40 (4.84, 12.77), P=0.022] and TIM3 [5.68 (2.05, 11.58) vs 7.07 (3.13, 11.43), P=0.338] were lower than that in paracancer tissues. There were significant differences in TIM3 expression in gastric cancer patients with different lymph node metastasis and clinical stage (all P<0.05). The 5-year survival rate of patients with high CD4 expression, low TIM3 expression and low Foxp3 expression in gastric cancer tissues was poor, among which the high CD4 expression and low CD4 expression groups were 29.3% and 64.7%, respectively; The high and low TIM3 expression groups were 60.9% and 30.4%, respectively; The high and low Foxp3 expression groups were 64.3% and 33.3%, respectively (all P<0.05). The optimal cut-off values of CD8+TIM3+TILs, CD4+TIM3+TILs, CD8+Foxp3+TILs and CD4+Foxp3+TILs were 3.86%, 0.23%, 0.08% and 0.76%, respectively. Colocalization analysis showed that the expression of CD8+Foxp3+TILs in gastric cancer tissues was higher than that in adjacent tissues(all P<0.05). Multivariate Cox regression analysis showed that high expression of CD4 (HR=3.079, 95%CI: 1.350-7.024,P=0.008), low expression of TIM3 (HR=0.428, 95%CI: 0.208-0.879, P=0.021) and low expression of Foxp3 (HR=0.288, 95%CI: 0.121-0.687, P=0.005) were the influencing factor for the 5-year survival rate of patients with gastric cancer after operation. Conclusions: Gastric cancer tissues have complex immune microenvironment characteristics. The expression of CD4, TIM3 and Foxp3 is closely related to the prognosis of patients.
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Affiliation(s)
- Y Wu
- Department of Gastroenterology, the First Affiliated Hospital of Soochow University, Suzhou 215006, China
| | - Y Q Chen
- Department of Gastroenterology, the First Affiliated Hospital of Soochow University, Suzhou 215006, China
| | - T G Shi
- Department of Gastroenterology, the First Affiliated Hospital of Soochow University, Suzhou 215006, China
| | - N J Tan
- Department of Gastroenterology, the First Affiliated Hospital of Soochow University, Suzhou 215006, China
| | - W C Chen
- Department of Gastroenterology, the First Affiliated Hospital of Soochow University, Suzhou 215006, China
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10
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Aweke BS, Yu CH, Shen JS, Wang S, Yap GPA, Chen WC, Ong TG. Binuclear Macrocyclic Silver(I) Complex of a Bis(carbone) Pincer Ligand: Synthesis and Application as a Carbone-Transfer Agent. Inorg Chem 2023; 62:12664-12673. [PMID: 37523291 DOI: 10.1021/acs.inorgchem.3c00765] [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: 08/02/2023]
Abstract
A facile synthesis of a binuclear AgI complex 2 of a bis(carbone) ligand L and its application as a carbone-transfer agent for the generation of other transition-metal complexes of AuI (3), NiII (4), and PdII (5) is presented. Complex 2 was synthesized through multiple synthetic routes under mild reaction conditions using the tetracationic [LH4][OTf·Cl]2 precursor salt, the dicationic [LH2][OTf]2 ylide salt, and the free ligand L. The first two synthesis routes require no prior isolation of the air-, moisture-, and temperature-sensitive free ligand L, thus affording complex 2 with high yield and purity. Multinuclear NMR techniques, high-resolution mass spectrometry, and single-crystal X-ray diffraction analysis confirmed the identity of complex 2 as a binuclear AgI complex of L with a molecular formula of [L2Ag2][OTf]2 and a 16-membered-ring metallomacrocyclic structure. During the transmetalation reaction with AuI, the binuclear nature of complex 2 remains intact to give analogous complex 3 ([L2Au2][OTf]2). However, the dimeric structure was disrupted upon the carbone-transfer reaction with NiII and PdII, yielding mononuclear C-N-C pincer-type complexes 4 ([LNiCl][OTf]) and 5 ([LPdCl][OTf]), respectively. These results demonstrated the versatile use of complex 2 as a carbone-transfer agent to other transition metals regardless of the type or size of the metals or the geometry they prefer.
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Affiliation(s)
- Bamlaku Semagne Aweke
- Institute of Chemistry, Academia Sinica, Taipei 11529, Taiwan
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan
- Sustainable Chemical Science and Technology, Taiwan International Graduate Program, Academia Sinica, Taipei 11529, Taiwan
| | - Cheng-Han Yu
- Institute of Chemistry, Academia Sinica, Taipei 11529, Taiwan
| | - Jiun-Shian Shen
- Institute of Chemistry, Academia Sinica, Taipei 11529, Taiwan
- Department of Chemistry, National Taiwan University, Taipei 106216, Taiwan
| | - Sheng Wang
- Institute of Chemistry, Academia Sinica, Taipei 11529, Taiwan
- Department of Applied Chemistry, National Yang Ming Chiao Tung University, Hsinchu 30010, Taiwan
| | - Glenn P A Yap
- Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, United States
| | - Wen-Ching Chen
- Institute of Chemistry, Academia Sinica, Taipei 11529, Taiwan
| | - Tiow-Gan Ong
- Institute of Chemistry, Academia Sinica, Taipei 11529, Taiwan
- Department of Chemistry, National Taiwan University, Taipei 106216, Taiwan
- Department of Medicinal and Applied Chemistry, National Taiwan University 10617 Kaohsiung Medical University, Kaohsiung 80708, Taiwan
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11
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He C, Guo ZY, Chen WC, Liu YJ, Tang LF, Wang LB, Qian LL. [Diagnostic value of nasal nitric oxide for children with primary ciliary dyskinesia]. Zhonghua Er Ke Za Zhi 2023; 61:626-630. [PMID: 37385806 DOI: 10.3760/cma.j.cn112140-20230216-00106] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Subscribe] [Scholar Register] [Indexed: 07/01/2023]
Abstract
Objective: To evaluate the value of nasal nitric oxide (nNO) measurement as a diagnostic tool for Chinese patients with primary ciliary dyskinesia (PCD). Methods: This study is a retrospective study. The patients were recruited from those who were admitted to the respiratory Department of Respiratory Medicine, Children's Hospital of Fudan University from March 2018 to September 2022. Children with PCD were included as the PCD group, and children with situs inversus or ambiguus, cystic fibrosis (CF), bronchiectasis, chronic suppurative lung disease and asthma were included as the PCD symptom-similar group. Children who visited the Department of Child health Care and urology in the same hospital from December 2022 to January 2023 were selected as nNO normal control group. nNO was measured during plateau exhalation against resistance in three groups. Mann-Whitney U test was used to analyze the nNO data. The receiver operating characteristic of nNO value for the diagnosis of PCD was plotted and, the area under the curve and Youden index was calculated to find the best cut-off value. Results: nNO was measured in 40 patients with PCD group, 75 PCD symptom-similar group (including 23 cases of situs inversus or ambiguus, 8 cases of CF, 26 cases of bronchiectasis or chronic suppurative lung disease, 18 cases of asthma), and 55 nNO normal controls group. The age of the three groups was respectively 9.7 (6.7,13.4), 9.3 (7.0,13.0) and 9.9 (7.3,13.0) years old. nNO values were significantly lower in children with PCD than in PCD symptom-similar group and nNO normal controls (12 (9,19) vs. 182 (121,222), 209 (165,261) nl/min, U=143.00, 2.00, both P<0.001). In the PCD symptom-similar group, situs inversus or ambiguus, CF, bronchiectasis or chronic suppurative lung disease and asthma were significantly higher than children with PCD (185 (123,218), 97 (52, 132), 154 (31, 202), 266 (202,414) vs. 12 (9,19) nl/min,U=1.00, 9.00, 133.00, 0, all P<0.001). A cut-off value of 84 nl/min could provide the best sensitivity (0.98) and specificity (0.92) with an area under the curve of 0.97 (95%CI 0.95-1.00, P<0.001). Conclusions: nNO value can draw a distinction between patients with PCD and others. A cut-off value of 84 nl/min is recommended for children with PCD.
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Affiliation(s)
- C He
- Department of Respiratory Medicine, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - Z Y Guo
- Department of Respiratory Medicine, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - W C Chen
- Department of Cardiothoracic Surgery, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - Y J Liu
- Pediatric Clinical Research Center, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - L F Tang
- Department of Urology, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - L B Wang
- Department of Respiratory Medicine, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
| | - L L Qian
- Department of Respiratory Medicine, Children's Hospital of Fudan University, National Children's Medical Center, Shanghai 201102, China
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12
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Chen JM, Chen M, Ren XC, Chen WC, Wang N, Li JW. [Research progress of metal micro-battery dressings in wound repair]. Zhonghua Shao Shang Yu Chuang Mian Xiu Fu Za Zhi 2023; 39:596-600. [PMID: 37805778 DOI: 10.3760/cma.j.cn501225-20220926-00416] [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] [Grants] [Subscribe] [Scholar Register] [Indexed: 10/09/2023]
Abstract
To develop the dressings that can both inhibit bacterial infection and actively promote healing is of great importance for wound repair and the development of medical technology. Electrical stimulation has multiple roles in wound healing, including hemostasis, antibacterial, anti-inflammatory, guidance of cell migration, promotion of re-epithelialization, and proliferation of cells. Metal micro-battery can provide a stable source of electrical stimulation energy without an external power source. Thus, the integration of metal micro-battery with medical dressings opens up new opportunities for the wireless application of electrical stimulation in wound repair. In this review, the mechanism of the effect of electrical stimulation on wound healing is systematically presented, then recent advances in metal micro-battery dressings, including preparation methods, antibacterial performance, and healing properties are mainly introduced, and the current challenges and prospects of metal micro-battery dressings are also provided.
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Affiliation(s)
- J M Chen
- College of Textile & Clothing, Qingdao University, Institute of Nonwovens and Industrial Textile Innovation, Qingdao 266071, China
| | - M Chen
- College of Textile & Clothing, Qingdao University, Institute of Nonwovens and Industrial Textile Innovation, Qingdao 266071, China
| | - X C Ren
- College of Textile & Clothing, Qingdao University, Institute of Nonwovens and Industrial Textile Innovation, Qingdao 266071, China
| | - W C Chen
- College of Textile & Clothing, Qingdao University, Institute of Nonwovens and Industrial Textile Innovation, Qingdao 266071, China
| | - N Wang
- College of Textile & Clothing, Qingdao University, Institute of Nonwovens and Industrial Textile Innovation, Qingdao 266071, China
| | - J W Li
- College of Textile & Clothing, Qingdao University, Institute of Nonwovens and Industrial Textile Innovation, Qingdao 266071, China
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13
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Chang YJ, Lin S, Kang ZF, Shen BJ, Tsai WH, Chen WC, Lu HP, Su YL, Chou SJ, Lin SY, Lin SW, Huang YJ, Wang HH, Chang CJ. Acetylation-Mimic Mutation of TRIM28-Lys304 to Gln Attenuates the Interaction with KRAB-Zinc-Finger Proteins and Affects Gene Expression in Leukemic K562 Cells. Int J Mol Sci 2023; 24:9830. [PMID: 37372979 DOI: 10.3390/ijms24129830] [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: 04/14/2023] [Revised: 05/26/2023] [Accepted: 05/29/2023] [Indexed: 06/29/2023] Open
Abstract
TRIM28/KAP1/TIF1β is a crucial epigenetic modifier. Genetic ablation of trim28 is embryonic lethal, although RNAi-mediated knockdown in somatic cells yields viable cells. Reduction in TRIM28 abundance at the cellular or organismal level results in polyphenism. Posttranslational modifications such as phosphorylation and sumoylation have been shown to regulate TRIM28 activity. Moreover, several lysine residues of TRIM28 are subject to acetylation, but how acetylation of TRIM28 affects its functions remains poorly understood. Here, we report that, compared with wild-type TRIM28, the acetylation-mimic mutant TRIM28-K304Q has an altered interaction with Krüppel-associated box zinc-finger proteins (KRAB-ZNFs). The TRIM28-K304Q knock-in cells were created in K562 erythroleukemia cells by CRISPR-Cas9 (Clustered regularly interspaced short palindromic repeats/CRISPR-associated protein nuclease 9) gene editing method. Transcriptome analysis revealed that TRIM28-K304Q and TRIM28 knockout K562 cells had similar global gene expression profiles, yet the profiles differed considerably from wild-type K562 cells. The expression levels of embryonic-related globin gene and a platelet cell marker integrin-beta 3 were increased in TRIM28-K304Q mutant cells, indicating the induction of differentiation. In addition to the differentiation-related genes, many zinc-finger-proteins genes and imprinting genes were activated in TRIM28-K304Q cells; they were inhibited by wild-type TRIM28 via binding with KRAB-ZNFs. These results suggest that acetylation/deacetylation of K304 in TRIM28 constitutes a switch for regulating its interaction with KRAB-ZNFs and alters the gene regulation as demonstrated by the acetylation mimic TRIM28-K304Q.
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Affiliation(s)
- Yao-Jen Chang
- Institute of Biological Chemistry, Academia Sinica, Taipei 11529, Taiwan
| | - Steven Lin
- Institute of Biological Chemistry, Academia Sinica, Taipei 11529, Taiwan
- Graduate Institute of Biochemical Sciences, College of Life Science, National Taiwan University, Taipei 10617, Taiwan
| | - Zhi-Fu Kang
- Graduate Institute of Biochemical Sciences, College of Life Science, National Taiwan University, Taipei 10617, Taiwan
| | - Bin-Jon Shen
- Institute of Biological Chemistry, Academia Sinica, Taipei 11529, Taiwan
| | - Wen-Hai Tsai
- Institute of Biological Chemistry, Academia Sinica, Taipei 11529, Taiwan
| | - Wen-Ching Chen
- Graduate Institute of Biochemical Sciences, College of Life Science, National Taiwan University, Taipei 10617, Taiwan
| | - Hsin-Pin Lu
- Graduate Institute of Biochemical Sciences, College of Life Science, National Taiwan University, Taipei 10617, Taiwan
| | - Yu-Lun Su
- Institute of Biological Chemistry, Academia Sinica, Taipei 11529, Taiwan
| | - Shu-Jen Chou
- Institute of Plant and Microbial Biology, Academia Sinica, Taipei 11529, Taiwan
| | - Shu-Yu Lin
- Institute of Biological Chemistry, Academia Sinica, Taipei 11529, Taiwan
| | - Sheng-Wei Lin
- Institute of Biological Chemistry, Academia Sinica, Taipei 11529, Taiwan
| | - Yin-Jung Huang
- Department of Pediatrics, Division of Pediatric Immunology and Nephrology, Taipei Veterans General Hospital, Taipei 11217, Taiwan
| | - Hsin-Hui Wang
- Department of Pediatrics, Division of Pediatric Immunology and Nephrology, Taipei Veterans General Hospital, Taipei 11217, Taiwan
- Department of Pediatrics, Faculty of Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei 112304, Taiwan
- Institute of Emergency and Critical Care Medicine, School of Medicine, National Yang Ming Chiao Tung University, Taipei 112304, Taiwan
| | - Ching-Jin Chang
- Institute of Biological Chemistry, Academia Sinica, Taipei 11529, Taiwan
- Graduate Institute of Biochemical Sciences, College of Life Science, National Taiwan University, Taipei 10617, Taiwan
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14
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Yang CH, Chen WC, Chen JB, Huang HC, Chuang LY. Overall mortality risk analysis for rectal cancer using deep learning-based fuzzy systems. Comput Biol Med 2023; 157:106706. [PMID: 36965323 DOI: 10.1016/j.compbiomed.2023.106706] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/03/2022] [Revised: 02/01/2023] [Accepted: 02/19/2023] [Indexed: 03/19/2023]
Abstract
Colorectal cancer is a leading cause of cancer mortality worldwide, with an increasing incidence rate in developing countries. Integration of genetic information with cancer therapy guidance has shown promise in cancer treatment, indicating its potential as an essential tool in translation oncology. However, the high-throughput analysis and variability of genomic data poses a major challenge to conventional analytic approaches. In this study, we propose an advanced analytic approach, named "Fuzzy-based RNNCoxPH," incorporated fuzzy logic, recurrent neural networks (RNNs), and Cox proportional hazards regression (CoxPH) for detecting missense variants associated with high-risk of all-cause mortality in rectum adenocarcinoma. The test data set was downloaded from "Rectum adenocarcinoma, TCGA-READ" the Genomic Data Commons (GDC) portal. In this study, four model-based risk score models were derived using RNN, CoxPH, RNNCoxPHAddition, and RNNCoxPHMultiplication. The RNNCoxPHAddition and RNNCoxPHMultiplication models were obtained as the sum and product of the RNN risk degree matrix and the CoxPH risk degree matrix, respectively. Moreover, the fuzzy logic system was used to calculate the survival risk values of missense variants and classified their membership grade to improve the identification of high-risk gene variation locations associated with cancer mortality. The four models were integrated to develop an advanced risk estimation model. There were 20 028 variants associated with survival status, amongst 17 638 variants were associated with survival and 2390 variants associated with mortality. The proposed Fuzzy-based RNNCoxPH model obtained a balanced accuracy of 93.7%, which was significantly higher than that of the other four test methods. In particular, the CoxPH model is commonly used in medical researches and the XGBoost model is famous for its high accuracy in machine learning. The results suggest that the Fuzzy-based RNNCoxPH model exhibits a higher efficacy in identifying and classifying the missense variants related to mortality risk in rectum adenocarcinoma.
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Affiliation(s)
- Cheng-Hong Yang
- Department of Information Management, Tainan University of Technology, Tainan, Taiwan; Department of Electronic Engineering, National Kaohsiung University of Science and Technology, Kaohsiung, Taiwan; Ph. D. Program in Biomedical Engineering, Kaohsiung Medical University, Kaohsiung, Taiwan; School of Dentistry, Kaohsiung Medical University, Kaohsiung, Taiwan; Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan.
| | - Wen-Ching Chen
- Department of Electronic Engineering, National Kaohsiung University of Science and Technology, Kaohsiung, Taiwan.
| | - Jin-Bor Chen
- Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan.
| | - Hsiu-Chen Huang
- Department of Community Health, Chia-Yi Christian Hospital, Chia-Yi City, Taiwan.
| | - Li-Yeh Chuang
- Department of Chemical Engineering & Institute of Biotechnology and Chemical Engineering, I-Shou University, Kaohsiung, Taiwan.
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15
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Ferndale L, Ayeni OA, Chen WC, Aldous C, Thomson SR. Development and internal validation of the survival time risk score in patients treated for oesophageal cancer with palliative intent in South Africa. S AFR J SURG 2023; 61:66-74. [PMID: 37052279] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/14/2023]
Abstract
BACKGROUND Most patients who present to South African state hospitals with advanced stage oesophageal squamous cell cancer (OSCC) disease receive palliative treatment. This study aimed to assess the factors that influence survival in patients with OSCC who received palliative management and to develop a prognostic score to aid clinicians in decisionmaking. METHODS Analysis of a prospectively collected database assessed factors influencing survival of patients diagnosed with OSCC receiving palliative treatment. Factors assessed included patient demographics, clinical and laboratory data and tumour factors. A multivariable logistic regression model was used to assess for significant factors associated with survival time and a prognostic score was developed and internally validated based on these factors. RESULTS There were 384 patients with a male-to-female ratio of 1.3:1. The median survival of the cohort was 3.7 months. Factors that influenced survival on multivariate analysis included area of residence (aOR 1.82, 95% CI 1.02-3.24), performance status (aOR 2.56, 95% CI 1.50-4.35), body mass index (aOR 1.87, 95% CI 1.14-3.06) and serum albumin (aOR 3.06, 95% CI 1.46-6.42). The final prognostic score contained three of the four independent variables based on the regression coefficient for each variable. After internal validation, the risk score maintained fair discrimination and good calibration. CONCLUSION The prognostic scoring system based on patient performance status, body mass index and serum albumin, if validated on an independent cohort, would allow more objective decisions on whether to stage or not prior to embarking on palliative treatment, streamlining care and improving quality of life.
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Affiliation(s)
- L Ferndale
- Department of Surgery, Grey's Hospital, South Africa and Department of Surgery, College of Health Sciences, School of Clinical Medicine, University of KwaZulu-Natal, South Africa
| | - O A Ayeni
- Division of Medical Oncology, Department of Medicine, Faculty of Health Sciences, University of the Witwatersrand, South Africa and Noncommunicable Diseases Research Division, Wits Health Consortium (Pty) Ltd, South Africa and Soweto Comprehensive Cancer Centre, Chris Hani Baragwanath Academic Hospital, South Africa
| | - W C Chen
- National Cancer Registry, National Health Laboratory Service, South Africa and Sydney Brenner Institute for Molecular Bioscience, Faculty of Health Sciences, University of the Witwatersrand, South Africa
| | - C Aldous
- College of Health Sciences, University of KwaZulu-Natal, South Africa
| | - S R Thomson
- Division of Gastroenterology, Department of Medicine, University of Cape Town, South Africa
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Lin CW, Chiang TY, Chen WC, Chiu LW, Su YC, Lin HC, Chang CT. Is Postextubation Dysphagia Underestimated in the Era of COVID-19? A Systematic Review and Meta-Analysis. Otolaryngol Head Neck Surg 2023; 168:935-943. [PMID: 36842159 DOI: 10.1002/ohn.168] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/21/2022] [Revised: 09/01/2022] [Accepted: 09/04/2022] [Indexed: 02/27/2023]
Abstract
OBJECTIVE To investigate the incidence rate of postextubation dysphagia (PED) in patients with COVID-19, as well as relative factors potentially influencing the clinical course of dysphagia. DATA SOURCES Six databases including PubMed, MEDLINE, Embase, ScienceDirect, the Cochrane Central Register of Controlled Trials (CENTRAL), and Web of Science were searched with no restriction on the language. REVIEW METHODS The Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines were followed. Data were extracted and cross-examined among 3 of the authors. The random-effects model was adopted for the statistical synthesis. The percentage and 95% confidence interval (CI) were adopted as the effect measurements of the PED incidence rate. Subgroup analyses, sensitivity analyses, and metaregression were also performed to identify the heterogeneity among the studies. RESULTS A total of 594 patients were enrolled and analyzed from the 10 eligible studies. The weighted incidence of PED in patients with COVID-19 was 66.5% (95% CI: 49.7%-79.9%). Age was the potential factor influencing the incidence rate after heterogeneity was adjusted by the metaregression analysis. CONCLUSION Compared to the current evidence reporting only 41% of the non-COVID patients experienced PED, our study further disclosed that a higher 66.5% of COVID-19 patients suffered from PED, which deserves global physicians' attention. With the association between COVID-19 and dysphagia having been more clearly understood, future clinicians are suggested to identify intubated patients' risk factors earlier to strengthen PED care programs in the era of COVID-19.
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Affiliation(s)
- Chung-Wei Lin
- Department of Education, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan
| | - Ting-Yi Chiang
- Department of Education, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan
| | - Wen-Ching Chen
- Department of General Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Li-Wen Chiu
- Department of Education, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan
| | - Yung-Chung Su
- Department of General Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Hsin-Ching Lin
- Department of Otolaryngology, Division of Laryngology, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan.,College of Medicine, Chang Gung University, Taoyuan, Taiwan.,Department of Business Management and Institute of Biomedical Science, Institute of Healthcare Management, National Sun Yat-sen University, Kaohsiung, Taiwan.,Sleep Center, Robotic Surgery Center and Center for Quality Management, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan
| | - Chun-Tuan Chang
- Department of Business Management and Institute of Biomedical Science, Institute of Healthcare Management, National Sun Yat-sen University, Kaohsiung, Taiwan
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17
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Chen WC, Huang P. Selective dystextia secondary to a left frontal hemorrhagic infarct. Neurol Sci 2023; 44:749-751. [PMID: 36163578 DOI: 10.1007/s10072-022-06421-0] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Accepted: 09/18/2022] [Indexed: 02/02/2023]
Affiliation(s)
- Wen-Ching Chen
- Department of General Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Poyin Huang
- Department of Neurology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.
- Department of Neurology, Kaohsiung Municipal Siaogang Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.
- Neuroscience Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan.
- Department of Neurology, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.
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Huang P, Hsu YC, Li CH, Hsieh SW, Lee KW, Wu KH, Chen WC, Lin CW, Chen CH. Videofluoroscopy dysphagia severity scale is predictive of subsequent remote pneumonia in dysphagia patients. Int J Med Sci 2023; 20:429-436. [PMID: 36860676 PMCID: PMC9969506 DOI: 10.7150/ijms.76448] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/23/2022] [Accepted: 01/13/2023] [Indexed: 02/15/2023] Open
Abstract
Introduction: Dysphagia-associated pneumonia is a critical health issue especially in the elders and stroke patients which carries a poorer prognosis. Therefore, we aim to identify methods with the potentials to predict subsequent pneumonia in dysphagia patients, which will be of great value in the prevention and early management of pneumonia. Methods: One-hundred dysphagia patients were enrolled and measurements including Dysphagia Severity Scale (DSS), Functional Oral Intake Scale (FOIS), Ohkuma Questionnaire, and Eating Assessment Tool-10 (EAT-10) were assessed by either videofluoroscopy (VF), videoendoscopy (VE), or the study nurse. The patients were categorized into mild or severe groups based on each screening method. All the patients were assessed for pneumonia at 1, 3, 6, and 20 months after the examinations. Results: VF-DSS (p=0.001) is the only measurement being significantly associated with subsequent pneumonia with sensitivity and specificity of 0.857 and 0.486. The Kaplan-Meier curves revealed that significant differences between the mild/severe groups start to emerge 3 months after VF-DSS (p=0.013). Cox regression models used for adjusted hazard ratio of severe VF-DSS in association with subsequent pneumonia of different timepoints after controlling the important covariates showed the following results: 3 months, p=0.026, HR=5.341, 95%CI=1.219-23.405; 6 months, p=0.015, HR=4.557, 95%CI=1.338-15.522; 20 months, p=0.004, HR=4.832, 95%CI=1.670-13.984. Conclusions: Dysphagia severity evaluated by VE-DSS, VE-FOIS, VF-FOIS, Ohkuma Questionnaire, and EAT-10 is not associated with subsequent pneumonia. Only VF-DSS is associated with both short-term and long-term subsequent pneumonia. In patients with dysphagia, VF-DSS is predictive of subsequent pneumonia.
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Affiliation(s)
- Poyin Huang
- Department of Neurology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Neurology, Kaohsiung Municipal Siaogang Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.,Neuroscience Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Neurology, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Dysphagia Functional Reconstructive Center, Kaohsiung Municipal Siaogang Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.,Multidisciplinary Swallowing Center, Kaohsiung Municipal Siaogang Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Yi-Chiung Hsu
- Department of Biomedical Sciences and Engineering, National Central University, Chung-Li, Taoyuan City 320, Taiwan
| | - Chien-Hsun Li
- Department of Neurology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Neurology, Kaohsiung Municipal Siaogang Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.,Neuroscience Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan.,Dysphagia Functional Reconstructive Center, Kaohsiung Municipal Siaogang Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.,Integrated Center of Healthy and Long-term Care, Kaohsiung Municipal Siaogang Hospital, Kaohsiung Medical University, Kaohsiung 812, Taiwan
| | - Sun-Wung Hsieh
- Department of Neurology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Neurology, Kaohsiung Municipal Siaogang Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.,Neuroscience Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Neurology, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Dysphagia Functional Reconstructive Center, Kaohsiung Municipal Siaogang Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Kuo-Wei Lee
- Department of Neurology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Neurology, Kaohsiung Municipal Siaogang Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Kun-Han Wu
- Department of Neurology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Neurology, Kaohsiung Municipal Siaogang Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Wen-Ching Chen
- Department of general medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chung-Wei Lin
- School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Chun-Hung Chen
- Department of Neurology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Neurology, Kaohsiung Municipal Siaogang Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.,Neuroscience Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan.,Dysphagia Functional Reconstructive Center, Kaohsiung Municipal Siaogang Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan.,Multidisciplinary Swallowing Center, Kaohsiung Municipal Siaogang Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
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19
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Aweke BS, Yu CH, Zhi M, Chen WC, Yap GPA, Zhao L, Ong TG. A Bis-(carbone) Pincer Ligand and Its Coordinative Behavior toward Multi-Metallic Configurations. Angew Chem Int Ed Engl 2022; 61:e202201884. [PMID: 35293113 DOI: 10.1002/anie.202201884] [Citation(s) in RCA: 5] [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] [Subscribe] [Scholar Register] [Received: 02/03/2022] [Indexed: 12/16/2022]
Abstract
Carbones are divalent carbon(0) species that contain two lone pairs of electrons. Herein, we have prepared the first known stable and isolable free bis-(carbone) pincer framework with a well-defined solid-state structure. This bis-(carbone) ligand is an effective scaffold for forming monometallic (Ni and Pd) and trinuclear heterometallic complexes with Au-Pd-Au, Au-Ni-Au, and Cu-Ni-Cu configurations. Sophisticated quantum-theoretical analyses found that the metal-metal interactions are too weak to play a significant role in upholding these multi-metallic configurations; rather, the four lone pairs of electrons within the bis-(carbone) framework are the main contributors to the stability of the complexes.
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Affiliation(s)
- Bamlaku Semagne Aweke
- Institute of Chemistry, Academia Sinica, Taipei, Taiwan, ROC.,Department of Applied Chemistry, National Yang Ming Chiao Tung University, Hsinchu, Taiwan, ROC.,Sustainable Chemical Science and Technology (SCST), Taiwan International Graduate Program (TIGP), Academia Sinica, Taipei, Taiwan, ROC
| | - Cheng-Han Yu
- Institute of Chemistry, Academia Sinica, Taipei, Taiwan, ROC
| | - Minna Zhi
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, China
| | - Wen-Ching Chen
- Institute of Chemistry, Academia Sinica, Taipei, Taiwan, ROC
| | - Glenn P A Yap
- Department of Chemistry and Biochemistry, University of Delaware, Newark, DE, USA
| | - Lili Zhao
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, China
| | - Tiow-Gan Ong
- Institute of Chemistry, Academia Sinica, Taipei, Taiwan, ROC.,Department of Chemistry, National Taiwan University, Taipei, Taiwan, ROC.,Department of Medicinal and Applied Chemistry, Kaohsiung Medical University, Kaohsiung, Taiwan, ROC
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20
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Tee ZJ, Chen WC, Huang P. Basilar Artery Fenestration Versus Hypoglycemia-Induced Vertebrobasilar Insufficiency: A Case Report. Acta Neurol Taiwan 2022; 31(2):80-83. [PMID: 35266135] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
PURPOSE Vertebrobasilar insufficiency (VBI) is a common transient neurological condition related to posterior circulation hemodynamic insufficiency. However, it is rarely seen as an initial presentation in basilar artery (BA) fenestration or hypoglycemia. We present this case to further clarify the association between BA fenestration and hypoglycemia-induced VBI, as well as the difficulty in diagnosis, especially in acute clinical settings. CASE REPORT Herein, we report a case with BA fenestration, in which the patient suffered from transient episodes of focal neurological deficits, including dysarthria, focal limbs weakness, and ataxia with subsequent total recovery. Apart from hypoglycemia, no other abnormal laboratory surveys were found. This concurrent finding of hypoglycemia with transient focal neurological deficit poses a difficulty in differentiating between hypoglycemia-induced VBI and true acute ischemic stroke in the clinical setting. Subsequent brain imaging studies revealed no evidence of acute infarction and no evidence of atherosclerosis changes in vessels but BA fenestration was observed. We prescribed antiplatelets for the prevention of future strokes. However, currently, no consensus exists regarding the prevention of cerebral ischemia with BA fenestration. CONCLUSION BA fenestration-induced VBI and hypoglycemia-induced VBI are rarely reported and their mechanisms of action remain uncertain and controversial. However, BA fenestration-induced VBI may pose a risk for future cerebral ischemic events and warrants further investigations.
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Affiliation(s)
- Zong-Jun Tee
- Department of Neurology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung
| | - Wen-Ching Chen
- Department of General Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Poyin Huang
- Department of Neurology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung
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21
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Chang H, Chen WC, Shen JS, Ong TG, Wang VCC, Yap GPA. Mirror-plane disorder in a nickel chloride Schiff base complex: a suitable case study for crystallographic instruction. Acta Crystallogr C Struct Chem 2022; 78:137-140. [DOI: 10.1107/s2053229622000973] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 12/15/2021] [Accepted: 01/27/2022] [Indexed: 11/10/2022]
Abstract
The nickel chloride complex of the Schiff base N
2,N
2′-propanediylbis(2,3-butanedione-2-imine-3-oxime), namely, chlorido(3,9-dimethylundeca-3,8-diene-2,10-dione 10-oxime 2-oximato-κ4
N,N′,N′′,N′′′)nickel(II), [NiCl(C11H19N4O2)], at 100 K crystallizes in the orthorhombic space group Cmce. The structure exhibits mirror disorder of the main molecule that is not present in the bromide analogue. The relatively small number of unique reflections in the data set and the disorder imposed by the crystallographic mirror plane present a challenging educational case study.
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22
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Chen MN, Chen WC, Zhou Y. Topological hybrid semimetal phases and anomalous Hall effects in a three dimensional magnetic topological insulator. J Phys Condens Matter 2021; 34:025502. [PMID: 34636339 DOI: 10.1088/1361-648x/ac2ed7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/20/2021] [Accepted: 10/11/2021] [Indexed: 06/13/2023]
Abstract
In this work, we propose a ferromagnetic Bi2Se3as a candidate to hold the coexistence of Weyl- and nodal-line semimetal phases, which breaks the time reversal symmetry. We demonstrate that the type-I Weyl semimetal phase, type-I-, type-II- and their hybrid nodal-line semimetal phases can arise by tuning the Zeeman exchange field strength and the Fermi velocity. Their topological responses under U(1) gauge field are also discussed. Our results raise a new way for realizing Weyl and nodal-line semimetals and will be helpful in understanding the topological transport phenomena in three-dimensional material systems.
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Affiliation(s)
- M N Chen
- School of Science, Hangzhou Dianzi University, Hangzhou, 310018, People's Republic of China
| | - W C Chen
- Institute of Advanced Magnetic Materials, College of Materials and Environmental Engineering, Hangzhou Dianzi University, Hangzhou, 310018, People's Republic of China
| | - Yu Zhou
- School of Science, Hangzhou Dianzi University, Hangzhou, 310018, People's Republic of China
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23
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Kulkarni R, Chen WC, Lee Y, Kao CF, Hu SL, Ma HH, Jan JT, Liao CC, Liang JJ, Ko HY, Sun CP, Lin YS, Wang YC, Wei SC, Lin YL, Ma C, Chao YC, Chou YC, Chang W. Vaccinia virus-based vaccines confer protective immunity against SARS-CoV-2 virus in Syrian hamsters. PLoS One 2021; 16:e0257191. [PMID: 34499677 PMCID: PMC8428573 DOI: 10.1371/journal.pone.0257191] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/04/2021] [Accepted: 08/25/2021] [Indexed: 12/13/2022] Open
Abstract
COVID-19 in humans is caused by Severe acute respiratory syndrome coronavirus-2 (SARS-CoV-2) that belongs to the beta family of coronaviruses. SARS-CoV-2 causes severe respiratory illness in 10-15% of infected individuals and mortality in 2-3%. Vaccines are urgently needed to prevent infection and to contain viral spread. Although several mRNA- and adenovirus-based vaccines are highly effective, their dependence on the "cold chain" transportation makes global vaccination a difficult task. In this context, a stable lyophilized vaccine may present certain advantages. Accordingly, establishing additional vaccine platforms remains vital to tackle SARS-CoV-2 and any future variants that may arise. Vaccinia virus (VACV) has been used to eradicate smallpox disease, and several attenuated viral strains with enhanced safety for human applications have been developed. We have generated two candidate SARS-CoV-2 vaccines based on two vaccinia viral strains, MVA and v-NY, that express full-length SARS-CoV-2 spike protein. Whereas MVA is growth-restricted in mammalian cells, the v-NY strain is replication-competent. We demonstrate that both candidate recombinant vaccines induce high titers of neutralizing antibodies in C57BL/6 mice vaccinated according to prime-boost regimens. Furthermore, our vaccination regimens generated TH1-biased immune responses in mice. Most importantly, prime-boost vaccination of a Syrian hamster infection model with MVA-S and v-NY-S protected the hamsters against SARS-CoV-2 infection, supporting that these two vaccines are promising candidates for future development. Finally, our vaccination regimens generated neutralizing antibodies that partially cross-neutralized SARS-CoV-2 variants of concern.
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Affiliation(s)
- Rakesh Kulkarni
- Molecular and Cell Biology, Taiwan International Graduate Program, National Defense Medical Center, Academia Sinica and Graduate Institute of Life Science, Taipei, Taiwan
- Institute of Molecular Biology, Academia Sinica, Taipei, Taiwan
| | - Wen-Ching Chen
- Institute of Molecular Biology, Academia Sinica, Taipei, Taiwan
| | - Ying Lee
- Institute of Molecular Biology, Academia Sinica, Taipei, Taiwan
| | - Chi-Fei Kao
- Institute of Molecular Biology, Academia Sinica, Taipei, Taiwan
| | - Shiu-Lok Hu
- Department of Pharmaceutics, University of Washington, Seattle, Washington, United States of America
| | - Hsiu-Hua Ma
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Jia-Tsrong Jan
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Chun-Che Liao
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Jian-Jong Liang
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Hui-Ying Ko
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Cheng-Pu Sun
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Yin-Shoiou Lin
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
| | - Yu-Chiuan Wang
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
- Academi Sinica SPF Animal Facility, Academia Sinica, Taipei, Taiwan
| | - Sung-Chan Wei
- Institute of Molecular Biology, Academia Sinica, Taipei, Taiwan
| | - Yi-Ling Lin
- Institute of Biomedical Sciences, Academia Sinica, Taipei, Taiwan
- Biomedical Translation Research Center (BioTReC), Academia Sinica, Taipei, Taiwan
| | - Che Ma
- Genomics Research Center, Academia Sinica, Taipei, Taiwan
| | - Yu-Chan Chao
- Institute of Molecular Biology, Academia Sinica, Taipei, Taiwan
| | - Yu-Chi Chou
- Biomedical Translation Research Center (BioTReC), Academia Sinica, Taipei, Taiwan
| | - Wen Chang
- Molecular and Cell Biology, Taiwan International Graduate Program, National Defense Medical Center, Academia Sinica and Graduate Institute of Life Science, Taipei, Taiwan
- Institute of Molecular Biology, Academia Sinica, Taipei, Taiwan
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24
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Chan YC, Bai Y, Chen WC, Chen HY, Li CY, Wu YY, Tseng MC, Yap GPA, Zhao L, Chen HY, Ong TG. Synergistic Catalysis by Brønsted Acid/Carbodicarbene Mimicking Frustrated Lewis Pair-Like Reactivity. Angew Chem Int Ed Engl 2021; 60:19949-19956. [PMID: 34128303 DOI: 10.1002/anie.202107127] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [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: 05/28/2021] [Indexed: 01/06/2023]
Abstract
Carbodicarbene (CDC), unique carbenic entities bearing two lone pairs of electrons are well-known for their strong Lewis basicity. We demonstrate herein, upon introducing a weak Brønsted acid benzyl alcohol (BnOH) as a co-modulator, CDC is remolded into a Frustrated Lewis Pair (FLP)-like reactivity. DFT calculation and experimental evidence show BnOH loosely interacting with the binding pocket of CDC via H-bonding and π-π stacking. Four distinct reactions in nature were deployed to demonstrate the viability of proof-of-concept as synergistic FLP/Modulator (CDC/BnOH), demonstrating enhanced catalytic reactivity in cyclotrimerization of isocyanate, polymerization process for L-lactide (LA), methyl methacrylate (MMA) and dehydrosilylation of alcohols. Importantly, the catalytic reactivity of carbodicarbene is uniquely distinct from conventional NHC which relies on only single chemical feature of nucleophilicity. This finding also provides a new spin in diversifying FLP reactivity with co-modulator or co-catalyst.
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Affiliation(s)
- Yi-Chen Chan
- Institute of Chemistry, Academia Sinica, Taipei, Taiwan, R.O.C.,Department of Applied Chemistry, National Yang Ming Chiao Tung University, Hsinchu, Taiwan, R.O.C.,Taiwan International Graduate Program (TIGP), Sustainable Chemical Science and Technology (SCST), Academia Sinica, Taipei, Taiwan, R.O.C
| | - Yuna Bai
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, China
| | - Wen-Ching Chen
- Institute of Chemistry, Academia Sinica, Taipei, Taiwan, R.O.C
| | - Hsing-Yin Chen
- Department of Medicinal and Applied Chemistry, Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan, R.O.C
| | - Chen-Yu Li
- Department of Medicinal and Applied Chemistry, Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan, R.O.C
| | - Ying-Yann Wu
- Institute of Chemistry, Academia Sinica, Taipei, Taiwan, R.O.C
| | - Mei-Chun Tseng
- Institute of Chemistry, Academia Sinica, Taipei, Taiwan, R.O.C
| | - Glenn P A Yap
- The Department of Chemistry and Biochemistry, University of Delaware, Newark, DE, USA
| | - Lili Zhao
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, China
| | - Hsuan-Ying Chen
- Department of Medicinal and Applied Chemistry, Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung, 80708, Taiwan, R.O.C.,Department of Medicinal Research, Kaohsiung Medical University Hospital, Kaohsiung, 80708, Taiwan, R.O.C
| | - Tiow-Gan Ong
- Institute of Chemistry, Academia Sinica, Taipei, Taiwan, R.O.C.,Department of Chemistry, National (Taiwan) University, Taipei, Taiwan, R.O.C
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25
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Chen WC, Erwin R, Tsai P, Hassan MT, Hadad N, Majkrzak CF. A large beam high efficiency radio frequency neutron spin flipper. Rev Sci Instrum 2021; 92:063906. [PMID: 34243533 PMCID: PMC10398713 DOI: 10.1063/5.0045687] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/28/2021] [Accepted: 06/06/2021] [Indexed: 06/13/2023]
Abstract
A design for a radio frequency (RF) neutron spin flipper obtained from magneto-static and neutron spin transport simulations is presented. The RF flipper constructed from this design provides a flipping probability of 0.999 or better for a beam size 6 cm wide and 15 cm high and a wavelength band between 0.4 and 0.6 nm. Three permanent magnet guide field sections with air gaps provide a linear field gradient along the beam propagation direction over a large cross-sectional area. An RF oscillator based on coupling the resonant coil of a Hartley oscillator to the excitation coil was developed, which provides a higher current and, thereby, a larger RF amplitude, as compared to a conventional RF power amplifier. Two opaque He3 neutron spin filters were employed to measure the flipping probability of the flipper with very high precision. A spatially uniform flipping probability of 0.9995(2) or higher was measured over the large cross-sectional area neutron guide. This RF neutron spin flipper will be employed in a polychromatic beam reflectometer at the National Institute of Standards and Technology Center for Neutron Research. This design can be applied to other polarized neutron instruments or applications requiring a very high continuous flipping probability of the neutron spin for a large cross-sectional area beam.
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Affiliation(s)
- W C Chen
- NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA
| | - R Erwin
- NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA
| | - P Tsai
- NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA
| | - Md T Hassan
- NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA
| | - N Hadad
- NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA
| | - C F Majkrzak
- NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA
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26
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Li ZY, Liu WZ, Guang H, Chen WC, Yang YH. Silencing of long noncoding RNA H19 inhibited invasion and migration of papillary thyroid cancer cells via microRNA-138-dependent regulating of LRRK2. J BIOL REG HOMEOS AG 2021; 35:253-258. [PMID: 33506668 DOI: 10.23812/20-422-l] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
Affiliation(s)
- Z Y Li
- Department of Ultrasound, Shenzhen Second people's Hospital, The First Affiliated Hospital of Shenzhen University, Shenzhen, Guangdong Province, China
| | - W Z Liu
- Department of Ultrasound, Shenzhen Second people's Hospital, The First Affiliated Hospital of Shenzhen University, Shenzhen, Guangdong Province, China
| | - H Guang
- Department of Pathology, Shenzhen Second people's Hospital, The First Affiliated Hospital of Shenzhen University, Shenzhen, Guangdong Province, China
| | - W C Chen
- Department of Breast & Thyroid surgery, Shenzhen Second people's Hospital, The First Affiliated Hospital of Shenzhen University, Shenzhen, Guangdong Province, China
| | - Y H Yang
- Department of Ultrasound, Shenzhen Second people's Hospital, The First Affiliated Hospital of Shenzhen University, Shenzhen, Guangdong Province, China
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27
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Chen WC, Li YS, Huang P. Isolated trochlear palsy as the only presentation of midbrain infarction: a case report. J Int Med Res 2021; 49:3000605211008292. [PMID: 33906530 PMCID: PMC8111274 DOI: 10.1177/03000605211008292] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/25/2020] [Accepted: 03/16/2021] [Indexed: 11/16/2022] Open
Abstract
Trochlear palsy often results from traumatic, congenital and microvascular disorders. An intra-axial lesion as a cause of trochlear palsy is uncommon. Moreover, it usually accompanies other neurological deficits. Isolated trochlear palsy as the only presentation of brainstem stroke is unexpected. This current case report describes a 74-year-old male that presented with trochlear palsy without other neurological signs. Brain magnetic resonance imaging (MRI) revealed an acute midbrain infarction. The case report also reviews recent literature and provides a stepwise algorithm for clinicians to approach patients with trochlear palsy. Despite its rarity, clinicians are advised to consider ischaemic stroke as a cause of trochlear palsy even without other neurological deficits. Early MRI should be performed for prompt and proper management.
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Affiliation(s)
- Wen-Ching Chen
- School of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung
| | - Ying-Sheng Li
- Department of Neurology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung
| | - Poyin Huang
- Department of Neurology, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung
- Department of Neurology, Kaohsiung Municipal Siaogang Hospital, Kaohsiung Medical University, Kaohsiung
- Neuroscience Research Centre, Kaohsiung Medical University, Kaohsiung
- Department of Neurology, Faculty of Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung
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28
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Vural S, Baumgartner M, Lichtner P, Eckstein G, Hariry H, Chen WC, Ruzicka T, Melnik B, Plewig G, Wagner M, Giehl KA. Investigation of gamma secretase gene complex mutations in German population with Hidradenitis suppurativa designate a complex polygenic heritage. J Eur Acad Dermatol Venereol 2021; 35:1386-1392. [PMID: 33559291 DOI: 10.1111/jdv.17163] [Citation(s) in RCA: 10] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/07/2020] [Accepted: 01/14/2021] [Indexed: 12/14/2022]
Abstract
BACKGROUND Hidradenitis suppurativa (HS) is a chronic inflammatory disease affecting apocrine gland-bearing skin in the axilla, groin and under the breasts. Mutations of the gamma secretase gene complex, which is essential in the activation of Notch signalling pathways, were shown in some families with HS and in a few sporadic cases. Although an imbalance in Notch signalling is implicated in the pathogenesis, the exact mechanism of HS development is yet unknown. OBJECTIVES We aim to investigate the genetic basis of HS by determining the presence of mutations of gamma secretase gene complex in a cohort of HS patients and by searching for a disease-causing pathogenic variant in a multi-generational HS family using parametric linkage analysis. METHODS Thirty-eight patients clinically diagnosed with HS were included in this study. All exons and exon-intron boundaries of the genes encoding gamma secretase complex consisting of six genes: APH1A, APH1B, PSENEN, NCSTN, PSEN1 and PSEN2 were sequenced by Sanger technique. Genetic mapping with parametric linkage analysis for the patients in the family was performed with eight affected and four healthy individuals. The logarithm of odds was calculated. RESULTS In a sporadic patient with early-onset, severe lesions in axilla and groin, a novel single-nucleotide deletion causing frameshift in exon 1 of the NCSTN gene was identified ((NM_015331.3): c.38delG, p.(Gly13Glufs*15)). The LOD score of 1.5 was never exceeded in any region of the genome, pointing towards intricate multi-genic inheritance pattern within the affected family. CONCLUSIONS The gamma secretase gene complex mutations were rare in our cohort (3.2%). Besides, our analysis indicates a possible complex multi-genic inheritance in a seemingly autosomal dominantly inherited large HS family. Genetics of both familial and sporadic HS may be complicated in most cases, and the role of other potential genes such as autoinflammatory and modifier genes as well as environmental factors may influence the pathogenesis.
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Affiliation(s)
- S Vural
- Department of Dermatology and Allergy, Ludwig-Maximilian-University of Munich, Munich, Germany.,Department of Dermatology and Venereology, Koç University School of Medicine, İstanbul, Turkey
| | - M Baumgartner
- Department of Dermatology and Allergy, Ludwig-Maximilian-University of Munich, Munich, Germany
| | - P Lichtner
- Institute of Human Genetics, Technical University Munich, Neuherberg, Germany.,Institute of Human Genetics, Helmholtz Zentrum München, Neuherberg, Germany
| | - G Eckstein
- Institute of Human Genetics, Technical University Munich, Neuherberg, Germany.,Institute of Human Genetics, Helmholtz Zentrum München, Neuherberg, Germany
| | - H Hariry
- Gemeinschaftpraxis, Gütersloh, Germany
| | - W C Chen
- Department of Dermatology and Allergy, Technical University of Munich, Munich, Germany
| | - T Ruzicka
- Department of Dermatology and Allergy, Ludwig-Maximilian-University of Munich, Munich, Germany
| | - B Melnik
- Gemeinschaftpraxis, Gütersloh, Germany.,Department of Dermatology, Environmental Medicine and Health Theory, University of Osnabrück, Osnabrück, Germany
| | - G Plewig
- Department of Dermatology and Allergy, Ludwig-Maximilian-University of Munich, Munich, Germany
| | - M Wagner
- Institute of Human Genetics, Technical University Munich, Neuherberg, Germany.,Institute of Human Genetics, Helmholtz Zentrum München, Neuherberg, Germany
| | - K A Giehl
- Department of Dermatology and Allergy, Ludwig-Maximilian-University of Munich, Munich, Germany
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Au-Yeung KC, Xiao D, Shih WC, Yang HW, Wen YS, Yap GPA, Chen WC, Zhao L, Ong TG. Carbodicarbene: geminal-Bimetallic Coordination in Selective Manner. Chemistry 2020; 26:17350-17355. [PMID: 32537790 DOI: 10.1002/chem.202002795] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/10/2020] [Revised: 06/12/2020] [Indexed: 01/07/2023]
Abstract
The reaction of Pd(OAc)2 with free carbodicarbene (CDC) generates a Pd acetate trinuclear complex 1 via intramolecular C(sp3 )-H bond activation at one of the CDC methyl side arms. The solid structure of 1 reveals the capability of CDC to facilitate a double dative bond with two palladium centers in geminal fashion. This is attributed to the chelating mode of CDC, which can frustrate π-conjugation within the CDC framework. Such effect maybe also amplified by ligand-ligand interaction. The formation of other gem-bimetallic Pd-Pd, Pd-Au, and Ni-Au provides further structural evidence for this proof-of-concept in selective installation. Structural analysis is supported by computational calculations based on state-of-the-art energy decomposition analysis (EDA) in conjunction with natural orbitals for chemical valence (NOCV) method.
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Affiliation(s)
| | - Dengmengfei Xiao
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, P.R. China
| | - Wei-Chih Shih
- Institute of Chemistry, Academia Sinica, Taipei, Taiwan
| | - Hsiu-Wen Yang
- Institute of Chemistry, Academia Sinica, Taipei, Taiwan
| | - Yuh-Sheng Wen
- Institute of Chemistry, Academia Sinica, Taipei, Taiwan
| | - Glenn P A Yap
- Department of Chemistry & Biochemistry, University of Delaware, USA
| | | | - Lili Zhao
- Institute of Advanced Synthesis, School of Chemistry and Molecular Engineering, Nanjing Tech University, Nanjing, P.R. China
| | - Tiow-Gan Ong
- Institute of Chemistry, Academia Sinica, Taipei, Taiwan.,Department of Applied Chemistry, National Chiao Tung University, Taipei, Taiwan.,Department of Chemistry, National Taiwan University, Taipei, Taiwan
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30
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Affiliation(s)
- Shu-kai Liu
- Institute of Chemistry, Academia Sinica, Taipei, Taiwan
- The Department of Applied Chemistry, National Chiao Tung University, Hsin-chu, Taiwan
- Sustainable Chemical Science and Technology, Taiwan International Graduate Program, Academia Sinica and National Chiao Tung University, Hsin-chu,Taiwan
| | | | - Glenn P. A. Yap
- The Department of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, United States
| | - Tiow-Gan Ong
- Institute of Chemistry, Academia Sinica, Taipei, Taiwan
- The Department of Applied Chemistry, National Chiao Tung University, Hsin-chu, Taiwan
- The Department of Chemistry, National Taiwan University, Taipei, Taiwan
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Sher YP, Chai KM, Chen WC, Shen KY, Chen IH, Lee MH, Chiu FF, Liu SJ. A Polypeptide of Tumor-Associated Antigen L6 with Intrinsic Adjuvant Activity Enhances Antitumor Immunity. Vaccines (Basel) 2020; 8:vaccines8040620. [PMID: 33096846 PMCID: PMC7711899 DOI: 10.3390/vaccines8040620] [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: 09/22/2020] [Revised: 10/14/2020] [Accepted: 10/18/2020] [Indexed: 12/03/2022] Open
Abstract
Peptide vaccines are safe, and aim to elicit and expand tumor-specific immunity so as to eradicate tumors. However, achieving strong and long-lasting anti-tumor immunity with peptide vaccines for the antigen-specific treatment of cancer is challenging, in part because their efficacy depends on strong adjuvants or immunomodulators. We approached this problem by conjugating an epitope-based cancer vaccine with a lipidated sequence (an immunomodulator) to elicit a strong immune response. Lipidated and non-lipidated polyepitope proteins were generated that contained the universal T helper cell epitope (pan-DR), B cell epitopes, and the extended loop sequence of extracellular domain 2 of tumor-associated antigen L6 (TAL6). We show that the lipidated polyepitope cancer vaccine can activate bone marrow-derived dendritic cells, and trigger effective antigen-specific antibody and T helper cell responses, more effectively than the non-lipidated vaccine. Moreover, potent T cell immune responses were elicited in mice inoculated with the lipidated polyepitope cancer vaccine, providing protective antitumor immunity in mice bearing TAL6 tumors. Our study demonstrates that a lipidated polyepitope cancer vaccine could be employed to generate potent anti-tumor immune responses, including humoral and cellular immunity, which could be beneficial in the treatment of TAL6+ cancer.
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Affiliation(s)
- Yuh-Pyng Sher
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung 404, Taiwan
- Chinese Medicine Research Center, China Medical University, Taichung 404, Taiwan
- Research Center for Chinese Herbal Medicine, China Medical University, Taichung 404, Taiwan
- Center for Molecular Medicine, China Medical University Hospital, Taichung 404, Taiwan
| | - Kit Man Chai
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Miaoli 350, Taiwan
| | - Wen-Ching Chen
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung 404, Taiwan
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Miaoli 350, Taiwan
| | - Kuan-Yin Shen
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Miaoli 350, Taiwan
| | - I-Hua Chen
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Miaoli 350, Taiwan
| | - Ming-Hui Lee
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Miaoli 350, Taiwan
| | - Fang-Feng Chiu
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Miaoli 350, Taiwan
| | - Shih-Jen Liu
- Graduate Institute of Biomedical Sciences, China Medical University, Taichung 404, Taiwan
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Miaoli 350, Taiwan
- Graduate Institute of Medicine, Kaohsiung Medical University, Kaohsiung 807, Taiwan
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Lu HP, Lin CJ, Chen WC, Chang YJ, Lin SW, Wang HH, Chang CJ. TRIM28 Regulates Dlk1 Expression in Adipogenesis. Int J Mol Sci 2020; 21:ijms21197245. [PMID: 33008113 PMCID: PMC7582669 DOI: 10.3390/ijms21197245] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/26/2020] [Revised: 09/20/2020] [Accepted: 09/27/2020] [Indexed: 12/23/2022] Open
Abstract
The tripartite motif-containing protein 28 (TRIM28) is a transcription corepressor, interacting with histone deacetylase and methyltransferase complexes. TRIM28 is a crucial regulator in development and differentiation. We would like to investigate its function and regulation in adipogenesis. Knockdown of Trim28 by transducing lentivirus-carrying shRNAs impairs the differentiation of 3T3-L1 preadipocytes, demonstrated by morphological observation and gene expression analysis. To understand the molecular mechanism of Trim28-mediated adipogenesis, the RNA-seq was performed to find out the possible Trim28-regulated genes. Dlk1 (delta-like homolog 1) was increased in Trim28 knockdown 3T3-L1 cells both untreated and induced to differentiation. Dlk1 is an imprinted gene and known as an inhibitor of adipogenesis. Further knockdown of Dlk1 in Trim28 knockdown 3T3-L1 would rescue cell differentiation. The epigenetic analysis showed that DNA methylation of Dlk1 promoter and differentially methylated regions (DMRs) was not altered significantly in Trim28 knockdown cells. However, compared to control cells, the histone methylation on the Dlk1 promoter was increased at H3K4 and decreased at H3K27 in Trim28 knockdown cells. Finally, we found Trim28 might be recruited by transcription factor E2f1 to regulate Dlk1 expression. The results imply Trim28-Dlk1 axis is critical for adipogenesis.
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Affiliation(s)
- Hsin-Pin Lu
- Graduate Institute of Biochemical Sciences, College of Life Science, National Taiwan University, Taipei 10617, Taiwan; (H.-P.L.); (C.-J.L.); (W.-C.C.)
| | - Chieh-Ju Lin
- Graduate Institute of Biochemical Sciences, College of Life Science, National Taiwan University, Taipei 10617, Taiwan; (H.-P.L.); (C.-J.L.); (W.-C.C.)
| | - Wen-Ching Chen
- Graduate Institute of Biochemical Sciences, College of Life Science, National Taiwan University, Taipei 10617, Taiwan; (H.-P.L.); (C.-J.L.); (W.-C.C.)
| | - Yao-Jen Chang
- Institute of Biological Chemistry, Academia Sinica, Taipei 11529, Taiwan; (Y.-J.C.); (S.-W.L.)
| | - Sheng-Wei Lin
- Institute of Biological Chemistry, Academia Sinica, Taipei 11529, Taiwan; (Y.-J.C.); (S.-W.L.)
| | - Hsin-Hui Wang
- Department of Pediatrics, Division of Pediatric Immunology and Nephrology, Taipei Veterans General Hospital, Taipei 11217, Taiwan;
- Department of Pediatrics, Faculty of Medicine, School of Medicine, National Yang-Ming University, Taipei 11217, Taiwan
- Institute of Emergency and Critical Care Medicine, School of Medicine, National Yang-Ming University, Taipei 11217, Taiwan
| | - Ching-Jin Chang
- Graduate Institute of Biochemical Sciences, College of Life Science, National Taiwan University, Taipei 10617, Taiwan; (H.-P.L.); (C.-J.L.); (W.-C.C.)
- Institute of Biological Chemistry, Academia Sinica, Taipei 11529, Taiwan; (Y.-J.C.); (S.-W.L.)
- Correspondence:
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Chen FR, Zheng LM, Wu DC, Gong HM, Cen H, Chen WC. [Regulatory relationship between lncRNA KCNQ1OT1 and miR-146a-3p in preeclampsia]. Zhonghua Fu Chan Ke Za Zhi 2020; 55:535-543. [PMID: 32854478 DOI: 10.3760/cma.j.cn112141-20200322-00246] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To observe the changes of the expression level of long non-coding RNA (lncRNA) KCNQ1OT1 and microRNA (miR)-146a-3p in placenta tissues of preeclampsia (PE) patients, as well as their effect and mechanism on the biological functions of trophoblast cells. Methods: A total of 45 cases of hospitalized PE patients in Hainan General Hospital from July 2017 to July 2018 were selected as the PE group, 55 normal pregnant women during the same period were chosed as the control group. The expression level of KCNQ1OT1 mRNA and miR-146a-3p in the placenta tissues between two groups were detected by using quantitative real time (qRT)-PCR. Pearson's test was furtherly analyzed the correlation between them. Human trophoblast cell line (HTR8/SVneo) were randomly divided into control and lipopolysaccharide (LPS) groups, and then LPS group were divide into four sub-groups,included LPS group, short hairpin RNA (sh)-KCNQ1OT1 (after silencing the expression of KCNQ1OT1), miR-146a-3p inhibitor and sh-KCNQ1OT1+miR-146a-3p inhibitor. The targeting relationship between KCNQ1OT1 and miR-146a-3p were predicted by bioinformatics software and confirmed by luciferase assay. The cell proliferation and invasion capacities were respectively detected by cell counting kit-8 (CCK-8) and transwell assay. The expression level of KCNQ1OT1 mRNA and miR-146a-3p were detected by qRT-PCR and the protein expression level of CXC chemokine ligand 12 (CXCL12) and CXC chemokine receptor type 4 (CXCR4) were tested by western blot. Results: (1) The mRNA expression level of KCNQ1OT1 in the placenta of PE group was lower than that of control group (0.23±0.03 vs 0.51±0.04, P<0.05), and the miR-146a-3p expression level was higher than that of the control group (0.49±0.03 vs 0.31±0.03, P<0.05), there were statistical significant differences between the two groups. (2) Luciferase assay showed that there was a targeting relationship between KCNQ1OT1 and mir-146a-3p. Compared with the control group, the mRNA expression level of KCNQ1OT1 in the LPS group were significantly decreased (0.91±0.03 vs 0.35±0.03, P<0.05), and the expression level of miR-146a-3p were significantly increased (0.22±0.03 vs 0.63±0.04, P<0.05). The cell proliferation, invasion and migration capacities and the protein expression of CXCL12 and CXCR4 significantly reduced in the LPS group compared with control group (all P<0.05). The mRNA expression level of KCNQ1OT1 (0.23±0.03) in the sh-KCNQ1OT1 group were further decreased, the expression of miR-146a-3p (0.85±0.03) were further increased, and the cell proliferation, invasion and migration capacities and the protein expression of CXCL12 and CXCR4 were all further reduced compared with control group,there were significant difference between two groups (all P<0.05). Comparing the miR-146a-3p inhibitor group, and sh-KCNQ1OT1+miR-146a-3p inhibitor group with the sh-KCNQ1OT1 group, respectively, the expression level of KCNQ1OT1 mRNA (0.78±0.04 vs 0.50±0.03) increased, and the expression level of miR-146a-3p (0.42±0.03 vs 0.46±0.03) decreased, the cell proliferation, invasion and migration capacities and the protein expression of CXCL12 and CXCR4 were all increased ,there were statistically significant differences (all P<0.05). Conclusion: KCNQ1OT1 could target the regulation of miR-146a-3p through CXCL12/CXCR4 pathway in the proliferation, invasion an migration of HTR8/SVneo cells, which may be involved in the pathogenesis of PE.
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Abstract
BACKGROUND A country's ability to become a prominent knowledge economy is tied closely to its ability to acquire skilled people who can compete internationally while resolving challenges of the future. To equip students with competence that can only by gained by being immersed in a foreign environment, outbound mobility is vital. METHODS To analyze outbound student mobility in Taiwan using time series methods, this study aims to propose a hybrid approach FSDESVR which combines feature selection (FS) and support vector regression (SVR) with differential evolution (DE). FS and a DE algorithm were used for selecting reliable input features and determining the optimal initial parameters of SVR, respectively, to achieve high forecast accuracy. RESULTS The proposed approach was examined using a dataset of outbound Taiwanese student mobility to ten countries between 1998 and 2018. Without the requirements of any special conditions for the proprieties of the objective function and constraints, the FSDESVR model retained the advantage of FS, SVR, and DE. A comparison of the FSDESVR model and other forecasting models revealed that FSDESVR provided the lowest mean absolute percentage error (MAPE) and root mean square error (RMSE) results for all the analyzed nations. The experimental results indicate that FSDESVR achieved higher forecasting accuracy than the compared models from the literature. CONCLUSION With the recognition of outbound values, key findings of Taiwanese outbound student mobility, and accurate application of the FSDESVR model, education administration units are exposed to a more in-depth view of future student mobility, which enables the implement of a more accurate education curriculum.
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Affiliation(s)
- Stephanie Yang
- Department of Educational Psychology and Counseling, National Taiwan Normal University, Taipei, Taiwan
| | - Hsueh-Chih Chen
- Department of Educational Psychology and Counseling, National Taiwan Normal University, Taipei, Taiwan
| | - Wen-Ching Chen
- Electronic Engineering, National Kaohsiung University of Science and Technology, Kaohsiung, Taiwan
| | - Cheng-Hong Yang
- Electronic Engineering, National Kaohsiung University of Science and Technology, Kaohsiung, Taiwan
- Ph.D Program in Biomedical Engineering, Kaohsiung Medical University, Kaohsiung, Taiwan
- Drug Development and Value Creation Research Center, Kaohsiung Medical University, Kaohsiung, Taiwan
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Abstract
Plant growth-promoting bacteria (PGPB) are beneficial microbes that increase plant growth and yield. However, limited information is currently available on PGPB in onion (Allium cepa Linn.). The aims of the present study were to isolate and identify PGPB in onion and examine the effects of isolated PGPB on germination and growth during the vegetative stage in onion, pak choy (Brassica chinensis), and sweet pepper (Capsicum annuum). Twenty-three strains of PGPB were isolated from the roots, bulbs, and rhizosphere soil of onion. All isolated bacterial strains showed one or more PGP traits, including indole acetic acid production, phosphate solubilization ability, and 1-aminocyclopropane-1-carboxylate deaminase and nitrogenase activities; most of these traits were derived from Bacillus sp., Microbacterium sp., and Pseudomonas sp. Eight bacteria that exhibited strong abilities to produce indole acetic acid were selected for a Petri dish trial, soil pot test, and vermiculate pot test. The Petri dish trial showed that strains ORE8 and ORTB2 simultaneously increased radicle and hypocotyl lengths in onion, but inhibited growth in sweet pepper after 7 d. The soil pot experiment on onion revealed that strains ORE5, ORE8, and ORTB2 strongly promoted growth during the vegetative stage with only a half dose of chemical fertilizer. The present results indicate that ORE8 (Bacillus megaterium) and ORTB2 (Pantoea sp.) are the most promising biofertilizers of onion and may simultaneously inhibit the seedling growth of other plants.
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Affiliation(s)
- Brian Estuardo Samayoa
- International Master Program of Agriculture, National Chung-Hsing University, Taichung, Taiwan 40227
| | - Fo-Ting Shen
- Department of Soil and Environmental Science, National Chung-Hsing University, Taichung, Taiwan 40227
- Innovation and Development Center of Sustainable Agriculture (IDCSA), National Chung Hsing University, Taichung, Taiwan 40227
| | - Wei-An Lai
- Department of Soil and Environmental Science, National Chung-Hsing University, Taichung, Taiwan 40227
| | - Wen-Ching Chen
- International Bachelor Program of Agribusiness, National Chung-Hsing University, Taichung, Taiwan 40227
- Corresponding author. E-mail: ; Tel: +886–4–22840849 ext. 623; Fax: +886–4–22851922
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Samayoa BE, Shen FT, Lai WA, Chen WC. Screening and Assessment of Potential Plant Growth-promoting Bacteria Associated with <i>Allium cepa</i> Linn. Microbes Environ 2020; 35. [PMID: 35922906 PMCID: PMC7308573 DOI: 10.1264/jsme2.me19147e] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022] Open
Affiliation(s)
| | - Fo-Ting Shen
- Department of Soil and Environmental Science, National Chung-Hsing University
- Innovation and Development Center of Sustainable Agriculture (IDCSA), National Chung Hsing University
| | - Wei-An Lai
- Department of Soil and Environmental Science, National Chung-Hsing University
| | - Wen-Ching Chen
- International Bachelor Program of Agribusiness, National Chung-Hsing University
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Chen WC, Lin WC, Yang CH, Wu CN, Luo SD. Autonomic dysfunction as an independent risk factor for uncontrolled inflammation in chronic rhinosinusitis following functional endoscopic sinus surgery. Rhinology 2019; 0:2224. [PMID: 31886799 DOI: 10.4193/rhin19.238] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
BACKGROUND Chronic rhinosinusitis (CRS) is a multi-factorial disorder that causes systemic symptoms beyond rhinologic symptoms alone. A possible association between autonomic nervous system (ANS) dysfunction and CRS has been identified; however, few studies have confirmed this observation. In this study, we prospectively measured changes in ANS dysfunction symptoms following functional endoscopic sinus surgery (FESS) and explored the impact of ANS dysfunction on surgical outcomes of CRS. METHODOLOGY Patients diagnosed with CRS who consented to surgical intervention were included prospectively. All patients completed the Sino-nasal Outcome Test-22 (SNOT-22) and the 31-item Composite Autonomic Symptom Score (COMPASS 31) questionnaires before the operation and during the follow-up period. Clinical demographic data, Lund-Mackay, and modified Lund-Kennedy scores were recorded and measured. RESULTS A total of 102 patients were enrolled. The median SNOT-22 and COMPASS 31 scores significantly improved following FESS from 43.0 to 14.0 and 21.0 to 11.2 (all P less than 0.001), respectively. FESS led to a significant reduction in the prevalence of various ANS dysfunction symptoms. In multivariate analyses, revision surgeries (odds ratio [OR] 5.012, 95% confidence interval [CI] 1.52416.489; P=0.008), CRS with nasal polyps (OR 4.071, 95% CI 1.454-11.40; P=0.008), and higher Pre-FESS COMPASS 31 scores (OR 1.043, 95% CI 1.003-1.084; P=0.036) were independent risk factors for uncontrolled inflammation following FESS. CONCLUSIONS ANS dysfunction symptoms are prevalent in CRS and higher preoperative COMPASS 31 scores correspond with poor surgical outcomes. Following FESS, the majority of ANS dysfunction symptoms can be alleviated. Further investigations are required to explore the possible mechanism of how ANS is involved in the pathogenesis of CRS.
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Affiliation(s)
- W C Chen
- Department of Otolaryngology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
- Tajen University College of Pharmacy and Health care, Pingtung, Taiwan
| | - W C Lin
- Department of Diagnostic Radiology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - C H Yang
- Department of Otolaryngology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - C N Wu
- Department of Otolaryngology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
| | - S D Luo
- Department of Otolaryngology, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University College of Medicine, Kaohsiung, Taiwan
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Abstract
The present study was performed to investigate root-associated bacteria from Platycodon grandiflorum, a medicinal plant commonly grown in East Asia. Isolates were obtained from the rhizosphere or root interior with various culture media, and phylogenetic analyses were performed based on their 16S rDNA sequences. In consideration of practical applications, traits related to plant growth promotion and niche adaptation were assessed in several endophytic strains with fewer biosafety concerns. The effects of a bacterial inoculation on seedling and mature plant growth were evaluated. Seventeen genera that encompassed more than 30 bacterial lineages were successfully retrieved from the roots, the majority of which have not been reported as P. grandiflorum-associated bacteria, particularly for non-negligible Proteobacteria. Although nitrogen-fixing or phosphate-solubilizing and indole acetic acid-producing activities were recorded in all of the strains selected, these strains were beneficial or detrimental to plant growth as evidenced by their influence on the length of seedlings and biomass of mature plants. Among the 4 endophytic Rhizobium species tested in the present study, the potentially novel Rhizobium sp. BF-E16, which was more compatible with the non-leguminous medicinal plant P. grandiflorum, was identified. Other than plant growth-promoting traits, characteristics such as plant constituent-hydrolyzing activities need to be taken into consideration and their roles clarified when investigating plant growth-promoting rhizobacteria.
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Affiliation(s)
- Cong-Min Huang
- Department of Soil and Environmental Sciences, College of Agriculture and Natural Resources, National Chung Hsing University
| | - Wen-Ching Chen
- International Bachelor Program of Agribusiness (IBPA), College of Agriculture and Natural Resources, National Chung Hsing University
| | - Shih-Han Lin
- Department of Soil and Environmental Sciences, College of Agriculture and Natural Resources, National Chung Hsing University
| | - Yu-Ning Wang
- Department of Soil and Environmental Sciences, College of Agriculture and Natural Resources, National Chung Hsing University
| | - Fo-Ting Shen
- Department of Soil and Environmental Sciences, College of Agriculture and Natural Resources, National Chung Hsing University.,Innovation and Development Center of Sustainable Agriculture (IDCSA), National Chung Hsing University
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Ambre R, Yang H, Chen WC, Yap GPA, Jurca T, Ong TG. Nickel Carbodicarbene Catalyzes Kumada Cross-Coupling of Aryl Ethers with Grignard Reagents through C-O Bond Activation. Eur J Inorg Chem 2019. [DOI: 10.1002/ejic.201900692] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
Affiliation(s)
- Ram Ambre
- Institute of Chemistry; Academia Sinica; No. 128, Sec. 2, Academia Road, Nangang, Taipei Taiwan, R.O.C
| | - Hsuan Yang
- Institute of Chemistry; Academia Sinica; No. 128, Sec. 2, Academia Road, Nangang, Taipei Taiwan, R.O.C
| | - Wen-Ching Chen
- Institute of Chemistry; Academia Sinica; No. 128, Sec. 2, Academia Road, Nangang, Taipei Taiwan, R.O.C
| | - Glenn P. A. Yap
- Department of Chemistry and Biochemistry; University of Delaware; 19716 Delaware USA
| | - Titel Jurca
- Department of Chemistry; University of Central Florida; 4111 Libra Drive, Orlando Florida USA
- Renewable Energy and Chemical Transformations Cluster; University of Central Florida; 4353 Scorpius Street, Orlando Florida USA
| | - Tiow-Gan Ong
- Institute of Chemistry; Academia Sinica; No. 128, Sec. 2, Academia Road, Nangang, Taipei Taiwan, R.O.C
- Department of Applied Chemistry; National Chiao Tung University; Taiwan, R.O.C
- Department of Chemistry; National Taiwan University; No. 1, Sec. 4, Roosevelt Road, Taipei Taiwan, R.O.C
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40
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Zhang J, Pajerowski DM, Botana AS, Zheng H, Harriger L, Rodriguez-Rivera J, Ruff JPC, Schreiber NJ, Wang B, Chen YS, Chen WC, Norman MR, Rosenkranz S, Mitchell JF, Phelan D. Spin Stripe Order in a Square Planar Trilayer Nickelate. Phys Rev Lett 2019; 122:247201. [PMID: 31322403 DOI: 10.1103/physrevlett.122.247201] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Revised: 03/14/2019] [Indexed: 06/10/2023]
Abstract
Trilayer nickelates, which exhibit a high degree of orbital polarization combined with an electron count (d^{8.67}) corresponding to overdoped cuprates, have been identified as a promising candidate platform for achieving high-T_{c} superconductivity. One such material, La_{4}Ni_{3}O_{8}, undergoes a semiconductor-insulator transition at ∼105 K, which was recently shown to arise from the formation of charge stripes. However, an outstanding issue has been the origin of an anomaly in the magnetic susceptibility at the transition and whether it signifies the formation of spin stripes akin to single layer nickelates. Here we report single crystal neutron diffraction measurements (both polarized and unpolarized) that establish that the ground state is indeed magnetic. The ordering is modeled as antiferromagnetic spin stripes that are commensurate with the charge stripes, the magnetic ordering occurring in individual trilayers that are essentially uncorrelated along the crystallographic c axis. A comparison of the charge and spin stripe order parameters reveals that, in contrast to single-layer nickelates such as La_{2-x}Sr_{x}NiO_{4} as well as related quasi-2D oxides including manganites, cobaltates, and cuprates, these orders uniquely appear simultaneously, thus demonstrating a stronger coupling between spin and charge than in these related low-dimensional correlated oxides.
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Affiliation(s)
- Junjie Zhang
- Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
- Materials Science and Technology Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - D M Pajerowski
- Neutron Scattering Division, Oak Ridge National Laboratory, Oak Ridge, Tennessee 37831, USA
| | - A S Botana
- Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
- Department of Physics, Arizona State University, Tempe, Arizona 85287, USA
| | - Hong Zheng
- Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - L Harriger
- NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA
| | - J Rodriguez-Rivera
- NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA
- Department of Materials Sciences, University of Maryland, College Park, Maryland 20742, USA
| | - J P C Ruff
- CHESS, Cornell University, Ithaca, New York 14853, USA
| | - N J Schreiber
- Department of Materials Science and Engineering, Cornell University, Ithaca, New York 14853, USA
| | - B Wang
- Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - Yu-Sheng Chen
- ChemMatCARS, The University of Chicago, Argonne, Illinois 60439, USA
| | - W C Chen
- NIST Center for Neutron Research, National Institute of Standards and Technology, Gaithersburg, Maryland 20899, USA
- Department of Materials Sciences, University of Maryland, College Park, Maryland 20742, USA
| | - M R Norman
- Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - S Rosenkranz
- Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - J F Mitchell
- Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
| | - D Phelan
- Materials Science Division, Argonne National Laboratory, Argonne, Illinois 60439, USA
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41
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Baal JD, Chen WC, Solomon DA, Pai JS, Lucas CH, Hara JH, Oberheim Bush NA, McDermott MW, Raleigh DR, Villanueva-Meyer JE. Preoperative MR Imaging to Differentiate Chordoid Meningiomas from Other Meningioma Histologic Subtypes. AJNR Am J Neuroradiol 2019; 40:433-439. [PMID: 30819773 DOI: 10.3174/ajnr.a5996] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/03/2018] [Accepted: 01/14/2019] [Indexed: 01/01/2023]
Abstract
BACKGROUND AND PURPOSE Chordoid meningiomas are uncommon WHO grade II primary intracranial neoplasms that possess unique chordoid histology and follow an aggressive clinical course. Our aim was to assess the utility of qualitative MR imaging features and quantitative apparent diffusion coefficient values as distinguishing preoperative MR imaging metrics to identify and differentiate chordoid histology from other meningioma histologic subtypes. MATERIALS AND METHODS Twenty-one patients with meningiomas with chordoid histology, which included both chordoid meningiomas (>50% chordoid histology) and meningiomas with focal chordoid histology (<50% chordoid histology) with available preoperative MR imaging examinations, including diffusion-weighted imaging, were identified. Qualitative imaging features and quantitative ADC values were compared between meningiomas with chordoid histology and 42 nonchordoid meningiomas (29 WHO grade I, eleven WHO grade II, and 2 WHO grade III). RESULTS The median ADC (10-3mm2/s) of meningiomas with chordoid histology was significantly higher than nonchordoid meningiomas (1.16 versus 0.92, P < .001), as was the median normalized ADC (1.60 versus 1.19, P < .001). In subgroup analysis, the median and normalized ADC values of chordoid meningiomas (n = 11) were significantly higher than those in meningiomas with focal chordoid histology (n = 10, P < .001 and P < .001, respectively) or nonchordoid meningiomas (n = 42, P < .001 and <0.001, respectively). Median and normalized ADC values were not significantly different between the meningiomas with focal chordoid histology and nonchordoid meningiomas (P = .816 and .301, respectively). Among the qualitative imaging features, only DWI signal intensity was significantly associated with meningiomas with chordoid histology diagnosis. CONCLUSIONS ADC values are higher in chordoid compared with nonchordoid meningiomas and may be used to discriminate the degree of chordoid histology in meningiomas. While qualitative MR imaging features do not strongly discriminate chordoid from nonchordoid meningiomas, DWI may allow preoperative identification of chordoid meningiomas.
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Affiliation(s)
- J D Baal
- From the Departments of Radiology and Biomedical Imaging (J.D.B., J.E.V.-M.)
| | - W C Chen
- Radiation Oncology (W.C.C., J.S.P., J.H.H., D.R.R.)
| | | | - J S Pai
- Radiation Oncology (W.C.C., J.S.P., J.H.H., D.R.R.)
| | | | - J H Hara
- Radiation Oncology (W.C.C., J.S.P., J.H.H., D.R.R.)
| | - N A Oberheim Bush
- Neurological Surgery (N.A.O.B., M.W.M.), University of California San Francisco, San Francisco, California
| | - M W McDermott
- Neurological Surgery (N.A.O.B., M.W.M.), University of California San Francisco, San Francisco, California
| | - D R Raleigh
- Radiation Oncology (W.C.C., J.S.P., J.H.H., D.R.R.)
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42
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Li MY, Zhang DQ, Lu X, Chen WC. [Comparison of two serological methods in screening gastric cancer and its precancerous condition]. Zhonghua Nei Ke Za Zhi 2019; 57:907-911. [PMID: 30486559 DOI: 10.3760/cma.j.issn.0578-1426.2018.12.006] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To compare the diagnostic value of the old "ABC" method [serum pepsinogen(PG) combined with Helicobacter pylori (Hp) IgG antibody] and the new "ABC" method [serum pepsinogen plus gastrin-17(G-17)] in screening gastric cancer and its precancerous condition. Methods: Serum PG, G-17 and Hp-IgG were quantified by enzyme-linked immunosorbent assay (ELISA) in 278 subjects. Subjects were grouped according to the criteria of two methods. The gastroscopy and pathological biopsy were gold standard. Results: The positive rate of old "ABC" method was 74.46% (207/278), which was 54.68% of new "ABC" method (151/278). For the diagnosis of gastric cancer, the sensitivity and specificity of the old "ABC" method were 90.74% and 29.46% respectively, with diagnostic coincidence rate 41.37%. The sensitivity and specificity of the new "ABC" method were 92.59% and 54.46% respectively, with diagnostic coincidence rate 61.87%. As to the diagnosis of pre-cancerous state, the sensitivity and specificity of the old "ABC" method were 75.81% and 36.00%, with diagnostic coincidence rate 58.03%. The sensitivity and specificity of the new "ABC" method were 62.10% and 75.00%, with diagnostic coincidence rate 67.86%. Conclusions: Compared with the old "ABC" method, the new "ABC" method has higher sensitivity, specificity and diagnostic coincidence rate for the diagnosis of gastric cancer, yet higher specificity and lower sensitivity for the diagnosis of precancerous conditions.
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Affiliation(s)
- M Y Li
- Department of Gastroenterology, The First Affiliated Hospital of Soochow University, Suzhou 215006, China
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43
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Patlolla SR, Kao CR, Yeh AH, Lin HM, Chuang YC, Wen YS, Sneed BT, Chen WC, Ong TG, Kuo CH. Interface-Controlled Synthesis of Au-BINOL Hybrid Nanostructures and Mechanism Study. Langmuir 2018; 34:13697-13704. [PMID: 30343577 DOI: 10.1021/acs.langmuir.8b02857] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
The combined functionality of components in organic-inorganic hybrid nanomaterials render them efficient nanoreactors. However, the development in this field is limited due to a lack of synthetic avenues and systematic control of the growth kinetics of hybrid structures. In this work, we take advantage of an ionic switch for regio-control of Au-BINOL(1,1'-Bi-2-naphthol) hybrid nanostructures. Aromatic BINOL molecules assemble into nanospheres, concomitant with the growth of the Au nanocrystals. The morphological evolution of Au nanocrystals is solely controlled by the presence of halides in the synthetic system. Here we show that quaternary ammonium surfactants (CTAB or CTAC), not only bridging Au and BINOL, but also contributing to the formation of concentric or eccentric structures when their concentrations are tuned to the range of 10-5 to 10-3 M. This facile strategy offers the potential advantage of scalable production, with diverse functional organic-inorganic hybrid nanocomposites being produced based on the specific archetype of Au-BINOL hybrid nanocomposites.
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Affiliation(s)
- Shashank Reddy Patlolla
- Institute of Chemistry , Academia Sinica , Taipei 11529 , Taiwan
- Sustainable Chemical Science and Technology, Taiwan International Graduate Program , Academia Sinica and National Chiao Tung University , Taipei 11529 , Taiwan
- Department of Applied Chemistry , National Chiao Tung University , Hsinchu 30010 , Taiwan
| | - Chen-Rui Kao
- Institute of Chemistry , Academia Sinica , Taipei 11529 , Taiwan
| | - Ai-Hsuan Yeh
- Institute of Chemistry , Academia Sinica , Taipei 11529 , Taiwan
| | - Hung-Min Lin
- Institute of Chemistry , Academia Sinica , Taipei 11529 , Taiwan
- Department of Chemistry , National Taiwan University , Taipei 10617 , Taiwan
| | - Yu-Chun Chuang
- National Synchrotron Radiation Research Center , Hsinchu 30076 , Taiwan
| | - Yuh-Sheng Wen
- Institute of Chemistry , Academia Sinica , Taipei 11529 , Taiwan
| | - Brian T Sneed
- Cabot Microelectronics , Aurora , Illinois 60504 , United States
| | - Wen-Ching Chen
- Institute of Chemistry , Academia Sinica , Taipei 11529 , Taiwan
| | - Tiow-Gan Ong
- Institute of Chemistry , Academia Sinica , Taipei 11529 , Taiwan
- Department of Applied Chemistry , National Chiao Tung University , Hsinchu 30010 , Taiwan
- Department of Chemistry , National Taiwan University , Taipei 10617 , Taiwan
| | - Chun-Hong Kuo
- Institute of Chemistry , Academia Sinica , Taipei 11529 , Taiwan
- Institute of Materials Science and Engineering , National Central University , Jhongli 32001 , Taiwan
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44
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Chen WC, Wu G, Zhang W, Zhu YZ, Zhou Y, Zhang H, Xia XB, Sun PC. [Clinical outcomes of gastric cancer patients received capecitabine based adjuvant chemotherapy and the corresponding pharmacogenomics analysis]. Zhonghua Yi Xue Za Zhi 2018; 98:3420-3425. [PMID: 30440137 DOI: 10.3760/cma.j.issn.0376-2491.2018.42.009] [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 investigate the association between Thymidine phosphorylase(TYMP)genetic variation and clinical outcomes of postoperative gastric cancer (GC) patients received capecitabine based regimens. Methods: A total of 198 GC patients underwent surgical treatment and received capecitabine based adjuvant chemotherapy were included in this retrospective study. Peripheral blood and the postoperative tissue specimen of the GC patients were collected for the genotyping of polymorphism and TYMP mRNA expression, respectively. The correlation between polymorphism and clinical outcomes and safety of postoperative GC patients were analysed. Results: Located in the upstream, rs11479 was of clinical significance. The prevalence of rs11479 in TYMP among the GC patients were as follows: CC genotype 125 cases (63.13%), CT genotype 65 cases (32.83%), TT genotype 8 cases (4.04%), minor allele frequency of rs11479 is 0.20. The distribution of three genotypes were in accordance with Hardy-Weinberg Equilibrium (P=0.901). The analysis results of patients with different genotypes found that the 3-year disease free survival rate of the patients with CT/TT genotype and CC genotype were 73.97% and 65.60%, respectively, which was statistically significant (P=0.003). In terms of overall survival, the 3-year overall survival rate of the two genotypes were 83.56% and 72.80% (P=0.012), respectively. Adjusted in multivariate Cox regression analysis, CT/TT genotype was an independent favorable factor for disease free survival (OR=0.55, P=0.011). Safety analysis indicated that there was no significant association between genotypes and grade 2 adverse reaction. Additionally, of the 79 postoperative tissue specimens, the results showed that the expression of TYMP in cancer tissues of the patients with CT/TT genotypes were significantly higher than those of the wild type CC genotype patients (P<0.001). Conclusion: The polymorphism rs11479 of TYMP have favorable influence on the clinical outcomes of gastric cancer patients received capecitabine based adjuvant chemotherapy treatment through changing the mRNA expression of TYMP.
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Affiliation(s)
- W C Chen
- Department of Gastrointestinal Surgery, the People's Hospital of Zhengzhou University, Zhengzhou 450003, China
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45
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Chuah YY, Lee YY, Chen WC, Kao SS. Sengstaken-Blakemore tube malposition with esophageal rupture. Acta Gastroenterol Belg 2018; 81:447-448. [PMID: 30350541] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Affiliation(s)
- Yoen Young Chuah
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Ping Tung Christian Hospital, Ping Tung, Taiwan
| | - Y Y Lee
- Department of Medicine, School of Medical Sciences, Universiti Sains Malaysia, Kubang Kerian, Kelantan, Malaysia
| | - W C Chen
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
| | - S S Kao
- Division of Gastroenterology and Hepatology, Department of Internal Medicine, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
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46
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Affiliation(s)
- Shu-kai Liu
- Institute of Chemistry; Academia Sinica; Taipei Taiwan, Republic of China
- Department of Applied Chemistry; National Chiao Tung University; Taiwan, Republic of China
- Sustainable Chemical Science and Technology, International Graduate Program; Academia Sinica and National Chiao Tung University; Taiwan, Republic of China
| | - Wei-Chih Shih
- Institute of Chemistry; Academia Sinica; Taipei Taiwan, Republic of China
| | - Wen-Ching Chen
- Institute of Chemistry; Academia Sinica; Taipei Taiwan, Republic of China
| | - Tiow-Gan Ong
- Institute of Chemistry; Academia Sinica; Taipei Taiwan, Republic of China
- Department of Applied Chemistry; National Chiao Tung University; Taiwan, Republic of China
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47
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Liu SK, Shih WC, Chen WC, Ong TG. Front Cover: Carbodicarbenes and their Captodative Behavior in Catalysis (ChemCatChem 7/2018). ChemCatChem 2018. [DOI: 10.1002/cctc.201800379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Affiliation(s)
- Shu-kai Liu
- Institute of Chemistry; Academia Sinica; Taipei Taiwan, Republic of China
- Department of Applied Chemistry; National Chiao Tung University; Taiwan, Republic of China
- Sustainable Chemical Science and Technology, International Graduate Program; Academia Sinica and National Chiao Tung University; Taiwan, Republic of China
| | - Wei-Chih Shih
- Institute of Chemistry; Academia Sinica; Taipei Taiwan, Republic of China
| | - Wen-Ching Chen
- Institute of Chemistry; Academia Sinica; Taipei Taiwan, Republic of China
| | - Tiow-Gan Ong
- Institute of Chemistry; Academia Sinica; Taipei Taiwan, Republic of China
- Department of Applied Chemistry; National Chiao Tung University; Taiwan, Republic of China
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48
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Affiliation(s)
- Shu-kai Liu
- Institute of Chemistry; Academia Sinica; Taipei Taiwan, Republic of China
- Department of Applied Chemistry; National Chiao Tung University; Taiwan, Republic of China
- Sustainable Chemical Science and Technology, International Graduate Program; Academia Sinica and National Chiao Tung University; Taiwan, Republic of China
| | - Wei-Chih Shih
- Institute of Chemistry; Academia Sinica; Taipei Taiwan, Republic of China
| | - Wen-Ching Chen
- Institute of Chemistry; Academia Sinica; Taipei Taiwan, Republic of China
| | - Tiow-Gan Ong
- Institute of Chemistry; Academia Sinica; Taipei Taiwan, Republic of China
- Department of Applied Chemistry; National Chiao Tung University; Taiwan, Republic of China
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49
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Chen WC, Hsu FY, Yen JH. Effect of green manure amendment on herbicide pendimethalin on soil. J Environ Sci Health B 2018; 53:87-94. [PMID: 29087769 DOI: 10.1080/03601234.2017.1375835] [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] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Manure amendment in agricultural practice can have a large effect on herbicide dissipation because the period of manure plowing is close to the period of herbicide application. In addition, manure amendment is among the frequently encountered options in ameliorating pesticide pollution. In this research, the dissipation of the herbicide pendimethalin was examined after amendment with two common green manures, Lupinus luteus (L) or Cosmos bipinnatus (C), for 110 days in pH 5.2 and 7.7 soils (Sankengtzu [Sk] and Erhlin [Eh] soil, respectively). The microbial activity and ecology changes were examined by using Biolog EcoPlate and denaturing gradient gel electrophoresis (DGGE). In Sk soil, the half-lives of pendimethalin with L, C, and blank treatment were 49.0, 54.9, and 62.2 days, respectively, whereas that in Eh soil they were 46.3, 52.6, and 34.8 days, respectively. Pendimethalin dissipated quickly in more neutral soil (Eh soil), but the addition of manure can only increase the dissipation rate in acidic soil (Sk soil), indicating that the amendment of manures exerted different effect in pendimethalin dissipation rates in different pH soils. The application of pendimethalin and/or manure altered the microbial community activity after 24 h of incubation. After 110 days, the microbial community activities in green manure-amended soil were more similar to that with blank than pendimethalin treatment in both types of soils. In comparison with treatment C, microbial communities were more similar between treatment L and blank, indicating the superior effect over pendimethalin on microbial communities when applying Lupinus luteus. The research showed that the application of herbicide pendimethalin changed soil microbial community, and the amendment of manures exerted different effect in pendimethalin dissipation rates in different pH soils. It is assumed that the change in dissipation rates was originated from the microbial community change after different manure amendment.
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Affiliation(s)
- Wen-Ching Chen
- a International Bachelor Program of Agribusiness, National Chung-Hsing University , Taichung , Taiwan , Republic of China
| | - Fang-Yu Hsu
- b Department of Agricultural Chemistry , National Taiwan University , Taipei , Taiwan , Republic of China
| | - Jui-Hung Yen
- b Department of Agricultural Chemistry , National Taiwan University , Taipei , Taiwan , Republic of China
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50
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Chen WC, Shih WC, Jurca T, Zhao L, Andrada DM, Peng CJ, Chang CC, Liu SK, Wang YP, Wen YS, Yap GPA, Hsu CP, Frenking G, Ong TG. Carbodicarbenes: Unexpected π-Accepting Ability during Reactivity with Small Molecules. J Am Chem Soc 2017; 139:12830-12836. [DOI: 10.1021/jacs.7b08031] [Citation(s) in RCA: 44] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Wen-Ching Chen
- Institute
of Chemistry, Academia Sinica, No. 128, Sec. 2, Academia Road, Nangang, Taipei 11529, Taiwan, R.O.C
| | - Wei-Chih Shih
- Institute
of Chemistry, Academia Sinica, No. 128, Sec. 2, Academia Road, Nangang, Taipei 11529, Taiwan, R.O.C
| | - Titel Jurca
- Department
of Chemistry, Northwestern University, Evanston, Illinois 60208, United States
| | - Lili Zhao
- Institute
of Advanced Synthesis, School of Chemistry and Molecular Engineering,
Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, China
| | - Diego M. Andrada
- Fachbereich
Chemie, Philipps-Universität Marburg, Hans-Meerwein-Strasse, D-35043 Marburg, Germany
| | - Chun-Jung Peng
- Institute
of Chemistry, Academia Sinica, No. 128, Sec. 2, Academia Road, Nangang, Taipei 11529, Taiwan, R.O.C
| | - Chun-Chi Chang
- Institute
of Chemistry, Academia Sinica, No. 128, Sec. 2, Academia Road, Nangang, Taipei 11529, Taiwan, R.O.C
| | - Shu-kai Liu
- Institute
of Chemistry, Academia Sinica, No. 128, Sec. 2, Academia Road, Nangang, Taipei 11529, Taiwan, R.O.C
| | - Yi-Ping Wang
- Institute
of Chemistry, Academia Sinica, No. 128, Sec. 2, Academia Road, Nangang, Taipei 11529, Taiwan, R.O.C
| | - Yuh-Sheng Wen
- Institute
of Chemistry, Academia Sinica, No. 128, Sec. 2, Academia Road, Nangang, Taipei 11529, Taiwan, R.O.C
| | - Glenn P. A. Yap
- Department
of Chemistry and Biochemistry, University of Delaware, Newark, Delaware 19716, United States
| | - Chao-Ping Hsu
- Institute
of Chemistry, Academia Sinica, No. 128, Sec. 2, Academia Road, Nangang, Taipei 11529, Taiwan, R.O.C
| | - Gernot Frenking
- Institute
of Advanced Synthesis, School of Chemistry and Molecular Engineering,
Jiangsu National Synergetic Innovation Center for Advanced Materials, Nanjing Tech University, Nanjing 211816, China
- Fachbereich
Chemie, Philipps-Universität Marburg, Hans-Meerwein-Strasse, D-35043 Marburg, Germany
| | - Tiow-Gan Ong
- Institute
of Chemistry, Academia Sinica, No. 128, Sec. 2, Academia Road, Nangang, Taipei 11529, Taiwan, R.O.C
- Department
of Applied Chemistry, National Chiao Tung University, No. 1001,
Ta Hsueh Road, Hsinchu 300, Taiwan, R.O.C
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