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Zhang GM, Zhao LJ, Xie HT, Wu MF. Anterior Segment Biometry During Accommodation After Posterior Chamber Phakic Implantable Collamer Lens Implantation. J Refract Surg 2024; 40:e164-e172. [PMID: 38466765 DOI: 10.3928/1081597x-20240212-01] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 03/13/2024]
Abstract
PURPOSE To evaluate the dynamic changes in anterior segment parameters during accommodation following Implantable Collamer Lens (ICL) implantation with swept-source optical coherence tomography (SS-OCT). METHODS Under the accommodation of 0.00 diopters (D), 3.00 D, and maximum amplitude, SS-OCT was used to examine the anterior segment parameters, including ICL vault, ICL depth (the distance between the corneal endothelium and the posterior surface of ICL), crystalline lens thickness, anterior chamber depth, and various parameters of the anterior chamber angle, comprising angle opening distance, angle recess area, trabecular iris space area, and trabecular iris angle. RESULTS During accommodation, the ICL vault showed a significant decrease from baseline (536 ± 278 μm) to 3.00 D (522 ± 281 μm), followed by an increase from 3.00 D to maximum amplitude (548 ± 306 μm) (analysis of variance [ANOVA], P < .001). Four eyes (2.61%) exhibited a decrease in ICL vault to less than 100 μm (47 ± 32 μm) at maximum accommodation. The ICL depth decreased significantly as accommodation increased (ANOVA, P < .001). Crystalline lens thickness increased, whereas anterior chamber depth decreased during accommodation (ANOVA, P < .001). The anterior chamber angle widened during 3.00 D of accommodation but narrowed at maximum accommodation, leading to significant changes in the angle opening distance, angle recess area, trabecular iris space area, and trabecular iris angle during accommodation (ANOVA, P < .001 for all). CONCLUSIONS The anterior segment, including ICL vault and anterior chamber angle, undergo significant dynamic changes during accommodation. These accommodative changes may require careful monitoring for the surgery design of ICL implantation. [J Refract Surg. 2024;40(3):e164-e172.].
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Wu MF, Peng X, Zhao JL, Zhang MC, Xie HT. Mitophagy and mitochondrion-related expression profiles in response to physiological and pathological hypoxia in the corneal epithelium. Genomics 2023; 115:110739. [PMID: 37918455 DOI: 10.1016/j.ygeno.2023.110739] [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: 02/08/2023] [Revised: 09/29/2023] [Accepted: 10/30/2023] [Indexed: 11/04/2023]
Abstract
To study the mitochondrial and cellular responses to physiological and pathological hypoxia, corneal epithelial cells were preconditioned under 21% O2, 8% O2 or 1% O2. The cell survival rate, mitochondrial fluorescence and mitophagy flux were quantified using flow cytometry. After RNA sequencing, gene set enrichment analysis (GSEA) was performed. When the oxygen level decreased from 21% to 8%, mitochondrial fluorescence decreased by 45% (p < 0.001), accompanied by an 80% increase in mitophagy flux (p < 0.001). When the oxygen level dropped to 1%, the cell survival rate and mitochondrial fluorescence decreased, while mitophagy flux further increased (each p < 0.001). Comparison of 1% O2 vs. 21% O2 revealed enrichment of the HYPOXIA hallmark. Most of the significantly enriched mitochondrion-related gene sets were involved in apoptosis. The corresponding foremost leading edge genes belonged to the BCL-2 family. Corneal epithelial cell fate decisions under hypoxia may involve noncanonical pathways of mitophagy.
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Affiliation(s)
- Ming-Feng Wu
- Department of Ophthalmology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Xi Peng
- Department of Ophthalmology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Jiang-Lan Zhao
- Department of Ophthalmology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Ming-Chang Zhang
- Department of Ophthalmology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China
| | - Hua-Tao Xie
- Department of Ophthalmology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan 430022, China.
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Wu MF, Xi QH, Sheng Y, Wang YM, Wang WY, Chi CF, Wang B. Antioxidant Peptides from Monkfish Swim Bladders: Ameliorating NAFLD In Vitro by Suppressing Lipid Accumulation and Oxidative Stress via Regulating AMPK/Nrf2 Pathway. Mar Drugs 2023; 21:360. [PMID: 37367685 DOI: 10.3390/md21060360] [Citation(s) in RCA: 17] [Impact Index Per Article: 17.0] [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: 05/11/2023] [Revised: 06/11/2023] [Accepted: 06/14/2023] [Indexed: 06/28/2023] Open
Abstract
In this study, we investigate the ameliorating functions of QDYD (MSP2), ARW (MSP8), DDGGK (MSP10), YPAGP (MSP13) and DPAGP (MSP18) from monkfish swim bladders on an FFA-induced NAFLD model of HepG2 cells. The lipid-lowering mechanisms revealed that these five oligopeptides can up-regulate the expression of phospho-AMP-activated protein kinase (p-AMPK) proteins to inhibit the expression of the sterol regulatory element binding protein-1c (SREBP-1c) proteins on increasing lipid synthesis and up-regulating the expression of the PPAP-α and CPT-1 proteins on promoting the β-oxidation of fatty acids. Moreover, QDYD (MSP2), ARW (MSP8), DDGGK (MSP10), YPAGP (MSP13) and DPAGP (MSP18) can significantly inhibit reactive oxygen species' (ROS) production, promote the activities of intracellular antioxidases (superoxide dismutase, SOD; glutathione peroxidase, GSH-PX; and catalase, CAT) and bring down the content of malondialdehyde (MDA) derived from lipid peroxidation. Further investigations revealed that the regulation of these five oligopeptides on oxidative stress was achieved through activating the nuclear factor erythroid 2-related factor 2 (Nrf2) pathway to raise the expression levels of the heme oxygenase 1 (HO-1) protein and downstream antioxidant proteases. Therefore, QDYD (MSP2), ARW (MSP8), DDGGK (MSP10), YPAGP (MSP13) and DPAGP (MSP18) could serve as candidate ingredients to develop functional products for treating NAFLD.
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Affiliation(s)
- Ming-Feng Wu
- Zhejiang Provincial Engineering Technology Research Center of Marine Biomedical Products, School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan 316022, China
| | - Qing-Hao Xi
- Zhejiang Provincial Engineering Technology Research Center of Marine Biomedical Products, School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan 316022, China
| | - Yan Sheng
- Zhejiang Provincial Engineering Technology Research Center of Marine Biomedical Products, School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan 316022, China
| | - Yu-Mei Wang
- Zhejiang Provincial Engineering Technology Research Center of Marine Biomedical Products, School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan 316022, China
| | - Wan-Yi Wang
- National and Provincial Joint Laboratory of Exploration and Utilization of Marine Aquatic Genetic Resources, National Engineering Research Center of Marine Facilities Aquaculture, School of Marine Science and Technology, Zhejiang Ocean University, Zhoushan 316022, China
| | - Chang-Feng Chi
- National and Provincial Joint Laboratory of Exploration and Utilization of Marine Aquatic Genetic Resources, National Engineering Research Center of Marine Facilities Aquaculture, School of Marine Science and Technology, Zhejiang Ocean University, Zhoushan 316022, China
| | - Bin Wang
- Zhejiang Provincial Engineering Technology Research Center of Marine Biomedical Products, School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan 316022, China
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Sheng Y, Wang WY, Wu MF, Wang YM, Zhu WY, Chi CF, Wang B. Eighteen Novel Bioactive Peptides from Monkfish ( Lophius litulon) Swim Bladders: Production, Identification, Antioxidant Activity, and Stability. Mar Drugs 2023; 21:md21030169. [PMID: 36976218 PMCID: PMC10054418 DOI: 10.3390/md21030169] [Citation(s) in RCA: 18] [Impact Index Per Article: 18.0] [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: 02/10/2023] [Revised: 03/02/2023] [Accepted: 03/06/2023] [Indexed: 03/29/2023] Open
Abstract
In the study, papain was chosen from five proteases to hydrolyze proteins of monkfish swim bladders for effectively utilizing monkfish (Lophius litulon) processing byproducts, and the hydrolysis conditions of papain were optimized as hydrolysis temperature of 65 °C, pH 7.5, enzyme dose 2.5% and time 5 h using single-factor and orthogonal experiments. Eighteen peptides were purified from the swim bladder hydrolysate of monkfish by ultrafiltration and gel permeation chromatography methods and identified as YDYD, QDYD, AGPAS, GPGPHGPSGP, GPK, HRE, GRW, ARW, GPTE, DDGGK, IGPAS, AKPAT, YPAGP, DPT, FPGPT, GPGPT, GPT and DPAGP, respectively. Among eighteen peptides, GRW and ARW showed significant DPPH· scavenging activities with EC50 values of 1.053 ± 0.003 and 0.773 ± 0.003 mg/mL, respectively; YDYD, QDYD, GRW, ARW and YPAGP revealed significantly HO· scavenging activities with EC50 values of 0.150 ± 0.060, 0.177 ± 0.035, 0.201 ± 0.013, 0.183 ± 0.0016 and 0.190 ± 0.010 mg/mL, respectively; YDYD, QDYD, ARW, DDGGK and YPAGP have significantly O2-· scavenging capability with EC50 values of 0.126 ± 0.0005, 0.112 ± 0.0028, 0.127 ± 0.0002, 0.128 ± 0.0018 and 0.107 ± 0.0002 mg/mL, respectively; and YDYD, QDYD and YPAGP showed strong ABTS+· scavenging ability with EC50 values of 3.197 ± 0.036, 2.337 ± 0.016 and 3.839 ± 0.102 mg/mL, respectively. YDYD, ARW and DDGGK displayed the remarkable ability of lipid peroxidation inhibition and Ferric-reducing antioxidant properties. Moreover, YDYD and ARW can protect Plasmid DNA and HepG2 cells against H2O2-induced oxidative stress. Furthermore, eighteen isolated peptides had high stability under temperatures ranging from 25-100 °C; YDYD, QDYD, GRW and ARW were more sensitive to alkali treatment, but DDGGK and YPAGP were more sensitive to acid treatment; and YDYD showed strong stability treated with simulated GI digestion. Therefore, the prepared antioxidant peptides, especially YDYD, QDYD, GRW, ARW, DDGGK and YPAGP from monkfish swim bladders could serve as functional components applied in health-promoting products because of their high-antioxidant functions.
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Affiliation(s)
- Yan Sheng
- Zhejiang Provincial Engineering Technology Research Center of Marine Biomedical Products, School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan 316022, China
| | - Wan-Yi Wang
- National and Provincial Joint Laboratory of Exploration, Utilization of Marine Aquatic Genetic Resources, National Engineering Research Center of Marine Facilities Aquaculture, School of Marine Science and Technology, Zhejiang Ocean University, Zhoushan 316022, China
| | - Ming-Feng Wu
- Zhejiang Provincial Engineering Technology Research Center of Marine Biomedical Products, School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan 316022, China
| | - Yu-Mei Wang
- Zhejiang Provincial Engineering Technology Research Center of Marine Biomedical Products, School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan 316022, China
| | - Wang-Yu Zhu
- Cell and Molecular Biology Laboratory, Zhoushan Hospital, Zhoushan 316021, China
| | - Chang-Feng Chi
- National and Provincial Joint Laboratory of Exploration, Utilization of Marine Aquatic Genetic Resources, National Engineering Research Center of Marine Facilities Aquaculture, School of Marine Science and Technology, Zhejiang Ocean University, Zhoushan 316022, China
| | - Bin Wang
- Zhejiang Provincial Engineering Technology Research Center of Marine Biomedical Products, School of Food and Pharmacy, Zhejiang Ocean University, Zhoushan 316022, China
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Wu MF, Teng CM, Kuo TH, Huang WC, Wen CY. A Pervasive Pulmonary Function Estimation System with Six-Minute Walking Test. Biosensors (Basel) 2022; 12:824. [PMID: 36290960 PMCID: PMC9599376 DOI: 10.3390/bios12100824] [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] [Figures] [Subscribe] [Scholar Register] [Received: 08/13/2022] [Revised: 09/19/2022] [Accepted: 09/29/2022] [Indexed: 06/16/2023]
Abstract
Self-monitoring for spirometry is beneficial to assess the progression of lung disease and the effect of pulmonary rehabilitation. However, home spirometry fails to meet both accuracy and repeatability criteria in a satisfactory manner. The study aimed to propose a pervasive spirometry estimation system with the six-minute walking test (6MWT), where the system with information management, communication protocol, predictive algorithms, and a wrist-worn device, was developed for pulmonary function. A total of 60 subjects suffering from respiratory diseases aged from 25 to 90 were enrolled in the study. Pulmonary function test, walking steps, and physical status were measured before and after performing the 6MWT. The significant variables were extracted to predict per step distance (PSD), forced vital capacity (FVC) and forced expiratory volume in one second (FEV1). These predicted formulas were then implemented in a wrist-worn device of the proposed pervasive estimation system. The predicted models of PSD, and FVC, FEV1 with the 6MWT were created. The estimated difference for PSD was-0.7 ± 9.7 (cm). FVC and FEV1 before performing 6MWT were 0.2 ± 0.6 (L) and 0.1 ± 0.6 (L), respectively, and with a sensitivity (Sn) of 81.8%, a specificity (Sp) of 63.2% for obstructive lung diseases, while FVC and FEV1 after performing the 6MWT were 0.2 ± 0.7 (L) and 0.1 ± 0.6 (L), respectively, with an Sn of 90.9% and an Sp of 63.2% for obstructive lung diseases. Furthermore, the developed wristband prototype of the pulmonary function estimation system was demonstrated to provide effective self-estimation. The proposed system, consisting of hardware, application and algorithms was shown to provide pervasive assessment of the pulmonary function status with the 6MWT. This is a potential tool for self-estimation on FVC and FEV1 for those who cannot conduct home-based spirometry.
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Affiliation(s)
- Ming-Feng Wu
- Division of Chest Medicine, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung 407, Taiwan
- Department of Medical Laboratory Science and Biotechnology, Central Taiwan University of Science and Technology, Taichung 407, Taiwan
| | - Chi-Min Teng
- Department of Electrical Engineering, National Chung Hsing University, Taichung 402, Taiwan
| | - Tz-Hau Kuo
- Department of Electrical Engineering, National Chung Hsing University, Taichung 402, Taiwan
| | - Wei-Chang Huang
- Division of Chest Medicine, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung 407, Taiwan
- Department of Post-Baccalaureate Medicine, College of Medicine, National Chung Hsing University, Taichung 402, Taiwan
- School of Medicine, Chung Shan Medical University, Taichung 402, Taiwan
- Ph.D. Program in Translational Medicine, National Chung Hsing University, Taichung 402, Taiwan
- Department of Medical Technology, Jen-Teh Junior College of Medicine, Nursing and Management, Miaoli 350, Taiwan
| | - Chih-Yu Wen
- Department of Electrical Engineering, National Chung Hsing University, Taichung 402, Taiwan
- Bachelor Program of Electrical Engineering and Computer Science, Innovation and Development Center of Sustainable Agriculture (IDCSA), National Chung Hsing University, Taichung 402, Taiwan
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Huang WC, Fu PK, Chan MC, Chin CS, Huang WN, Lai KL, Wang JL, Hung WT, Wu YD, Hsieh CW, Wu MF, Chen YH, Hsu JY. Predictors of a Minimal Clinically Important Difference Following Omalizumab Treatment in Adult Patients With Severe Allergic Asthma. Front Med (Lausanne) 2022; 8:762318. [PMID: 35047521 PMCID: PMC8761618 DOI: 10.3389/fmed.2021.762318] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/21/2021] [Accepted: 12/01/2021] [Indexed: 11/25/2022] Open
Abstract
Several factors have been found to be predictors of a good response following omalizumab treatment in patients with severe allergic asthma (SAA). However, it remains unclear whether clinical characteristics can predict a minimal clinically important difference (MCID) following omalizumab treatment in this population. Therefore, the aim of this study was to investigate the features associated with an MCID following omalizumab treatment in adult patients with SAA. Of the 124 participants enrolled in this retrospective, cross-sectional study, 94, 103, 20 and 53 achieved the MCID following treatment with omalizumab and were considered to be responders of exacerbation reduction (no exacerbation during the 1-year follow-up period or ≧50% reduction in exacerbations from baseline), oral corticosteroid (OCS) sparing (no use of OCS to control asthma during the study period or a reduction of the monthly OCS maintenance dose to <50% of baseline), lung function (an increase of ≧230 ml in the forced expiratory volume in 1 s from baseline) and asthma control (an increase of ≧3 points in the asthma control test score from baseline), respectively. Normal weight [<25 vs. ≧30 kg/m2, odds ratio (OR) = 3.86, p = 0.024] was predictive of a responder of reduction in exacerbations following omalizumab treatment while subjects with a blood eosinophil level of <300 cells/μL (<300 vs. ≧300 cells/μL, OR = 5.81, p = 0.001) were more likely to exhibit an MCID in OCS sparing. No factor was found to be a predictor of lung function or asthma control. When choosing treatment for adult patients with SAA, our findings may help to select those who may benefit the most from omalizumab treatment.
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Affiliation(s)
- Wei-Chang Huang
- Division of Chest Medicine, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan.,College of Medicine, National Chung Hsing University, Taichung, Taiwan.,Ph.D. Program in Translational Medicine, National Chung Hsing University, Taichung, Taiwan.,School of Medicine, Chung Shan Medical University, Taichung, Taiwan.,Master Program for Health Administration, Department of Industrial Engineering and Enterprise Information, Tunghai University, Taichung, Taiwan.,Department of Medical Technology, Jen-Teh Junior College of Medicine, Nursing and Management, Miaoli, Taiwan
| | - Pin-Kuei Fu
- Department of Critical Care Medicine, Taichung Veterans General Hospital, Taichung, Taiwan.,College of Human Science and Social Innovation, Hungkuang University, Taichung, Taiwan.,Department of Computer Science, Tunghai University, Taichung, Taiwan
| | - Ming-Cheng Chan
- College of Medicine, National Chung Hsing University, Taichung, Taiwan.,Division of Critical Care and Respiratory Therapy, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Chun-Shih Chin
- Division of Chest Medicine, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Wen-Nan Huang
- College of Medicine, National Chung Hsing University, Taichung, Taiwan.,Division of Allergy, Immunology and Rheumatology, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Kuo-Lung Lai
- Division of Allergy, Immunology and Rheumatology, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Jiun-Long Wang
- Division of Chest Medicine, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan.,Ph.D. Program in Translational Medicine, National Chung Hsing University, Taichung, Taiwan.,Agricultural Biotechnology Research Center, National Chung Hsing University, Taichung, Taiwan.,Department of Life Sciences, National Chung Hsing University, Taichung, Taiwan
| | - Wei-Ting Hung
- Division of Allergy, Immunology and Rheumatology, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Yi-Da Wu
- Division of Allergy, Immunology and Rheumatology, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Chia-Wei Hsieh
- Ph.D. Program in Translational Medicine, National Chung Hsing University, Taichung, Taiwan.,Division of Allergy, Immunology and Rheumatology, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Ming-Feng Wu
- Division of Chest Medicine, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan.,Department of Medical Laboratory Science and Biotechnology, Central Taiwan University of Science and Technology, Taichung, Taiwan
| | - Yi-Hsing Chen
- Division of Allergy, Immunology and Rheumatology, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan.,School of Medicine, National Yang Ming Chia Tung University, Taipei, Taiwan
| | - Jeng-Yuan Hsu
- Division of Clinical Research, Department of Medical Research, Taichung Veterans General Hospital, Taichung, Taiwan.,School of Physical Therapy, Chung-Shan Medical University, Taichung, Taiwan
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Juang CF, Pan GR, Wen CY, Chang KM, Wu MF, Huang WC. A Fuzzy Neural Network Model for Rapid Prediction of Optimal Positive Airway Pressures in OSAS Patients. IEEE J Biomed Health Inform 2021; 26:1506-1515. [PMID: 34665745 DOI: 10.1109/jbhi.2021.3120662] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Manual titration of positive airway pressure (PAP) is a gold standard to provide an optimal pressure for the treatment of obstructive sleep apnea-hypopnea syndrome (OSAS). Since manual titration studies were costly and time-consuming, many statistical models for predicting effective PAPs were reported. However, the prediction accuracies of the models associated with nocturnal parameters still remain low. This study proposes a fuzzy neural prediction network (FNPN) with input candidate variables, selected among easily available measurements (e.g., body mass index (BMI), waist circumstance (WC), and body composition) and OSAS related questionnaires, to rapidly predict an optimal PAP. The FNPN comprises fuzzy rules and is characterized with the ability of automatic rule growing and pruning from training data. A total of 147 participants from April 2018 to April 2019 were enrolled in Taichung Veterans General Hospital, Taiwan. After two selection processes for feature extraction, WC and BMI were the significant variables for entering the FNPN to predict optimal PAP. Experimental results showed that the average successful prediction rate of the proposed method was 71.8%. This study also found that Epworth sleepiness scales (ESS) and body composition, such as visceral fat area and percent body fat, were excluded in the final prediction model. Compared with existing models, the proposed prediction approach provided a rapid prediction of optimal PAP with higher accuracy.
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Huang CC, Jerry Teng CL, Wu MF, Lee CH, Chen HC, Huang WC. Features of indeterminate results of QuantiFERON-TB Gold In-Tube test in patients with haematological malignancies. Ther Adv Hematol 2021; 12:20406207211028437. [PMID: 34285787 PMCID: PMC8264733 DOI: 10.1177/20406207211028437] [Citation(s) in RCA: 3] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/10/2021] [Accepted: 06/08/2021] [Indexed: 11/15/2022] Open
Abstract
Background and aims The application of QuantiFERON-TB Gold in-Tube (QFT-GIT) in patients with haematological malignancies (HMs) has not been well studied. Therefore, we aimed to investigate the features of patients with HMs whose QFT-GIT results were indeterminate. Methods This study enrolled patients with HMs for the analysis of QFT-GIT tests and additional 2-year follow-up. The characteristics and predictors of QFT-GIT indeterminate results were identified. Mycobacterium tuberculosis (TB) incidence rate (IR) and incidence rate ratio (IRR) were also investigated. Results Of 89 participants, 27 (30.3%) had QFT-GIT indeterminate results. The QFT-GIT indeterminate patients were characterized with the diagnosis of leukaemia (63.0% versus 32.3%, p = 0.044), abnormal white blood count (WBC) (88.9% versus 14.5%, p = 0.001), abnormal lymphocyte percentage (81.5% versus 14.5%, p = 0.001) and lower lymphocyte count (×109/l) (0.5 versus 2.2, p = 0.000) when compared with those with determinate results. Meanwhile, abnormal WBC [odds ratios (OR): 15.18, p = 0.003] and lymphocyte percentage (OR: 6.90, p = 0.033) were predictors of indeterminate results. One patient with the QFT-GIT indeterminate status and high interferon-γ level of negative control result developed active TB with a TB IR of 18.5 per 1000 person-years and an IRR of 0.1 (95% confidence interval, 0.01-0.71) when compared with positive QFT-GIT patients without prophylaxis treatment. Conclusion Abnormal ranges of WBC and lymphocyte differential count percentage were independent predictors useful to determine the optimal timing of implementing QFT-GIT test in patients with HMs.
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Affiliation(s)
- Chen-Cheng Huang
- Institute of Molecular Biology, College of Life Sciences, National Chung Hsing University, Taichung
| | - Chieh-Lin Jerry Teng
- Division of Haematology/Medical Oncology, Department of Medicine, Taichung Veterans General Hospital
| | - Ming-Feng Wu
- Division of Chest Medicine, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung
| | - Ching-Hsiao Lee
- Department of Medical Technology, Jen-Teh Junior College of Medicine, Nursing and Management, Miaoli
| | - Hui-Chen Chen
- Division of Chest Medicine, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung
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Chang KY, Wu PC, Lee CH, Lee YC, Chen HC, Huang WC, Wu MF. Clinical Features and Antimicrobial Susceptibility of Pseudomonas aeruginosa and Acinetobacter baumannii Complex Isolates in Intensive Care Patients with Chronic Obstructive Pulmonary Disease and Community-Acquired Pneumonia in Taiwan. Int J Chron Obstruct Pulmon Dis 2021; 16:1801-1811. [PMID: 34168441 PMCID: PMC8216665 DOI: 10.2147/copd.s311714] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/18/2021] [Accepted: 06/01/2021] [Indexed: 11/30/2022] Open
Abstract
Purpose Little is known about the features and implications of Pseudomonas aeruginosa (PA) and Acinetobacter baumannii complex (ABC) isolates discovered in patients with chronic obstructive pulmonary disease (COPD) and community-acquired pneumonia (CAP) requiring invasive mechanical ventilation and admission to an intensive care unit. Thus, our study aimed to investigate the clinical characteristics and antimicrobial susceptibilities of PA and ABC isolates cultured from endotracheal aspirates (EAs) in such population. Patients and Methods In this retrospective, cross-sectional study, clinical data from medical records were reviewed and collected for analysis. Results Of the 262 participants, 17.2% (45/262), 11.5% (30/262), and 27.1% (71/262) had PA, ABC, and any of the two isolates discovered from EA cultures, respectively. Patients with PA isolates were associated with poorer lung function (the Global Initiative for Chronic Obstructive Lung Disease (GOLD) III+IV versus GOLD I+II, odds ratio (OR)=2.39, p= 0.022) and a lower body mass index (per increase of 1 kg/m2, OR= 0.93, p= 0.106) while the former was an independent predictor. Moreover, both subjects with ABC isolates and those with any of these two microorganisms were independently associated with a lower serum albumin level (per increase of 1 g/dL, OR= 0.44, p=0.009 and OR= 0.59, p=0.023, respectively). Participants with PA isolates were more likely to have failed weaning (62.2% versus 44.7%, p= 0.048) and death (28.9% versus 12.4%, p= 0.010) than those without PA isolates. The majority of the PA and ABC isolates were susceptible and resistant to all the tested antimicrobials, respectively, except that tigecycline had a reliable activity against ABC. Conclusion Our findings provide important information to help intensivists make better treatment decisions in critically ill patients with COPD and CAP.
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Affiliation(s)
- Ko-Yun Chang
- Division of Chest Medicine, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, 407, Taiwan
| | - Pi-Chu Wu
- Nursing Department, Taichung Veterans General Hospital, Taichung, 407, Taiwan
| | - Ching-Hsiao Lee
- Department of Medical Technology, Jen-Teh Junior College of Medicine, Nursing and Management, Miaoli, 350, Taiwan
| | - Yu-Che Lee
- Department of Medicine, University at Buffalo-Catholic Health, Buffalo, NY, USA
| | - Hui-Chen Chen
- Division of Chest Medicine, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, 407, Taiwan
| | - Wei-Chang Huang
- Division of Chest Medicine, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, 407, Taiwan.,Department of Medical Technology, Jen-Teh Junior College of Medicine, Nursing and Management, Miaoli, 350, Taiwan.,School of Medicine, Chung Shan Medical University, Taichung, 402, Taiwan.,Ph.D. Program in Translational Medicine, National Chung Hsing University, Taichung, 402, Taiwan.,Master Program for Health Administration, Department of Industrial Engineering and Enterprise Information, Tunghai University, Taichung, 407, Taiwan
| | - Ming-Feng Wu
- Division of Chest Medicine, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, 407, Taiwan.,Department of Medical Laboratory Science and Biotechnology, Central Taiwan University of Science and Technology, Taichung, 406, Taiwan
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10
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Ye KX, Zhang T, Wang YM, Wen F, Wu MF, Huang J, Li GS, Geng KN, Zhou Z, Zhong FB, Liu YK, Xiang HM, Zhang SB. Application of random sample consensus method for parameter estimation of reflectometry density profile in toroidal plasma. Rev Sci Instrum 2021; 92:043521. [PMID: 34243453 DOI: 10.1063/5.0035962] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 11/01/2020] [Accepted: 03/23/2021] [Indexed: 06/13/2023]
Abstract
Microwave reflectometry diagnostics have been widely used to measure density profiles in fusion plasma. However, the high sensitivity of the diagnostics to plasma turbulence often results in large radial deviations in the edge density profile and causes difficulty in profile evaluation. To improve the performance of profile evaluation, a modified RANdom SAmple Consensus (RANSAC) method has been applied to fit the density profiles measured by reflectometry on the experimental advanced superconducting tokamak. Compared with the traditional least-squares method, the modified RANSAC method is much more efficient and robust in fitting the experimental profiles. Furthermore, a combination of RANSAC and a genetic algorithm (GA-RANSAC) is used to further optimize the profile evaluation procedure. The results show that this GA-RANSAC method yields better performance and stabler convergence than the modified RANSAC alone.
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Affiliation(s)
- K X Ye
- Institute of Plasma Physics, and Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - T Zhang
- Institute of Plasma Physics, and Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - Y M Wang
- Institute of Plasma Physics, and Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - F Wen
- Institute of Plasma Physics, and Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - M F Wu
- Institute of Plasma Physics, and Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - J Huang
- Institute of Plasma Physics, and Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - G S Li
- Institute of Plasma Physics, and Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - K N Geng
- Advanced Energy Research Center, Shenzhen University, Shenzhen 518060, People's Republic of China
| | - Z Zhou
- Department of Physics, Nanchang University, Nanchang, Jiangxi 330031, China
| | - F B Zhong
- Institute of Plasma Physics, and Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - Y K Liu
- Advanced Energy Research Center, Shenzhen University, Shenzhen 518060, People's Republic of China
| | - H M Xiang
- Institute of Plasma Physics, and Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
| | - S B Zhang
- Institute of Plasma Physics, and Hefei Institutes of Physical Science, Chinese Academy of Sciences, Hefei, Anhui 230031, People's Republic of China
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11
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Huang WC, Fu PK, Chan MC, Chin CS, Huang WN, Lai KL, Wang JL, Hung WT, Wu YD, Hsieh CW, Wu MF, Chen YH, Hsu JY. The Long-Term Effectiveness of Omalizumab in Adult Patients with Severe Allergic Asthma: Continuous Treatment Versus Boosting Treatment. J Clin Med 2021; 10:jcm10040707. [PMID: 33670157 PMCID: PMC7916868 DOI: 10.3390/jcm10040707] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2021] [Revised: 02/04/2021] [Accepted: 02/08/2021] [Indexed: 12/03/2022] Open
Abstract
The implications of boosting Omalizumab treatment (OT) in patients with severe allergic asthma (SAA) remain unclear. The study aimed to explore and compare the 12-month effectiveness between continuous, at least 10-month OT (continuation group) and four-month boost of Omalizumab (boost group) in adult patients with SAA. In this retrospective cohort study, clinical data were collected for further analysis. Of all participants (n = 124), a significant reduction in annual exacerbations (baseline = 0.8 ± 1.5, follow-up = 0.5 ± 1.0, p = 0.047 *) and improvement in small airway ventilation as evaluated by forced expiratory flow at 25–75% (baseline = 55.1 ± 11.1%, follow-up = 59.4 ± 8.4%, p < 0.001 *) were found in the continuation group (n = 110). By contrast, the boost group (n = 14) had significantly increased annual exacerbations (baseline = 0.7 ± 1.4, follow-up = 2.9 ± 3.6, p = 0.031 *) and impaired small airway function (baseline = 55.3 ± 12.9, follow-up = 52.1 ± 12.5, p = 0.026 *). Furthermore, the continuation group rather than the boost group had significant decreases in the frequency of oral corticosteroid (OCS) use as controllers (baseline = 32.7%, follow-up = 20.0%, p = 0.047 *; baseline = 50.0%, follow-up = 21.4%, p = 0.237, respectively) and OCS maintenance dose (mg/month) (baseline = 85.9 ± 180.8, follow-up = 45.8 ± 106.6, p = 0.020 *; baseline = 171.4 ± 221.5, follow-up = 50.0 ± 104.3, p = 0.064, respectively), and increases in asthma control test scores (baseline = 16.0 ± 3.0, follow-up = 19.8 ± 4.4, p < 0.001 *; baseline = 14.6 ± 3.8, follow-up = 19.7 ± 4.7, p = 0.050, respectively). Continuous OT would be beneficial for adult patients with SAA, while boost of Omalizumab would worsen their long-term outcomes.
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Affiliation(s)
- Wei-Chang Huang
- Department of Internal Medicine, Division of Chest Medicine, Taichung Veterans General Hospital, Taichung 407, Taiwan; (W.-C.H.); (M.-C.C.); (C.-S.C.); (J.-L.W.); (M.-F.W.)
- Department of Medical Technology, Jen-Teh Junior College of Medicine, Nursing and Management, Miaoli 350, Taiwan
- Ph.D. Program in Translational Medicine, National Chung Hsing University, Taichung 402, Taiwan;
- School of Medicine, Chung Shan Medical University, Taichung 402, Taiwan
- Department of Industrial Engineering and Enterprise Information, Tunghai University, Taichung 407, Taiwan
| | - Pin-Kuei Fu
- Department of Critical Care Medicine, Taichung Veterans General Hospital, Taichung 407, Taiwan;
- College of Human Science and Social Innovation, Hungkuang University, Taichung 433, Taiwan
- Department of Computer Science, Tunghai University, Taichung 407, Taiwan
| | - Ming-Cheng Chan
- Department of Internal Medicine, Division of Chest Medicine, Taichung Veterans General Hospital, Taichung 407, Taiwan; (W.-C.H.); (M.-C.C.); (C.-S.C.); (J.-L.W.); (M.-F.W.)
- Department of Internal Medicine, Division of Critical Care and Respiratory Therapy, Taichung Veterans General Hospital, Taichung 407, Taiwan
- Central Taiwan University of Science and Technology, Taichung 406, Taiwan
- The College of Science, Tunghai University, Taichung 407, Taiwan
| | - Chun-Shih Chin
- Department of Internal Medicine, Division of Chest Medicine, Taichung Veterans General Hospital, Taichung 407, Taiwan; (W.-C.H.); (M.-C.C.); (C.-S.C.); (J.-L.W.); (M.-F.W.)
| | - Wen-Nan Huang
- Immunology and Rheumatology, Department of Internal Medicine, Division of Allergy, Taichung Veterans General Hospital, Taichung 407, Taiwan; (W.-N.H.); (K.-L.L.); (W.-T.H.); (Y.-D.W.)
| | - Kuo-Lung Lai
- Immunology and Rheumatology, Department of Internal Medicine, Division of Allergy, Taichung Veterans General Hospital, Taichung 407, Taiwan; (W.-N.H.); (K.-L.L.); (W.-T.H.); (Y.-D.W.)
| | - Jiun-Long Wang
- Department of Internal Medicine, Division of Chest Medicine, Taichung Veterans General Hospital, Taichung 407, Taiwan; (W.-C.H.); (M.-C.C.); (C.-S.C.); (J.-L.W.); (M.-F.W.)
- Ph.D. Program in Translational Medicine, National Chung Hsing University, Taichung 402, Taiwan;
- Agricultural Biotechnology Research Center, National Chung Hsing University, Taichung 402, Taiwan
- Department of Life Sciences, National Chung Hsing University, Taichung 402, Taiwan
| | - Wei-Ting Hung
- Immunology and Rheumatology, Department of Internal Medicine, Division of Allergy, Taichung Veterans General Hospital, Taichung 407, Taiwan; (W.-N.H.); (K.-L.L.); (W.-T.H.); (Y.-D.W.)
| | - Yi-Da Wu
- Immunology and Rheumatology, Department of Internal Medicine, Division of Allergy, Taichung Veterans General Hospital, Taichung 407, Taiwan; (W.-N.H.); (K.-L.L.); (W.-T.H.); (Y.-D.W.)
| | - Chia-Wei Hsieh
- Ph.D. Program in Translational Medicine, National Chung Hsing University, Taichung 402, Taiwan;
- Immunology and Rheumatology, Department of Internal Medicine, Division of Allergy, Taichung Veterans General Hospital, Taichung 407, Taiwan; (W.-N.H.); (K.-L.L.); (W.-T.H.); (Y.-D.W.)
| | - Ming-Feng Wu
- Department of Internal Medicine, Division of Chest Medicine, Taichung Veterans General Hospital, Taichung 407, Taiwan; (W.-C.H.); (M.-C.C.); (C.-S.C.); (J.-L.W.); (M.-F.W.)
- Department of Medical Laboratory Science and Biotechnology, Central Taiwan University of Science and Technology, Taichung 406, Taiwan
| | - Yi-Hsing Chen
- Immunology and Rheumatology, Department of Internal Medicine, Division of Allergy, Taichung Veterans General Hospital, Taichung 407, Taiwan; (W.-N.H.); (K.-L.L.); (W.-T.H.); (Y.-D.W.)
- Faculty of Medicine, National Yang-Ming University, Taipei 112, Taiwan
- Correspondence: (Y.-H.C.); (J.-Y.H.); Tel.: +886-4-23592525 (ext. 3003) (Y.-H.C.); +886-4-23592525 (ext. 4039) (J.-Y.H.)
| | - Jeng-Yuan Hsu
- Department of Medical Research, Division of Clinical Research, Taichung Veterans General Hospital, Taichung 407, Taiwan
- School of Medicine, China Medical University, Taichung 404, Taiwan
- School of Physical Therapy, Chung-Shan Medical University, Taichung 402, Taiwan
- Correspondence: (Y.-H.C.); (J.-Y.H.); Tel.: +886-4-23592525 (ext. 3003) (Y.-H.C.); +886-4-23592525 (ext. 4039) (J.-Y.H.)
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12
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Abstract
To evaluate real dynamic assessment of tear film optical quality for monitoring and prevention of dry eye.Right eyes of 62 normal and 39 dry eye subjects were included. Dynamic measurement of objective scatter index (OSI) was performed by using the Optical Quality Analysis System II (OQAS II), correlation coefficient between OSI and time (CCOT) was calculated. According to whether the CCOT was significantly ascending, normal and dry eye groups were further subdivided for comparison. By using Scheimpflug-Placido topographer, non-invasive tear break-up time (NITBUT) was recorded, and a 2-dimensional precorneal tear film map was reconstructed and divided into central, middle, and peripheral corneal zones, distribution of tear break-up spots in the 3 corneal zones were analyzed.The numbers of tear break-up spots were higher in all the 3 corneal zones of the dry eye subjects (P < .01), when compared with the normal subjects. The Dry Eye subjects with ascending CCOT had the shortest NITBUT (P < .001-.034) and the most tear break-up spots over the whole cornea (P < .001-.044). Between the dry eye subjects with non-ascending CCOT and those with ascending CCOT, difference of tear break-up spots was found significant only in the peripheral corneal zone (P < .01).Non-ascending and ascending CCOT of dry eye patients reflect different stability of tear film. Real dynamic assessment of tear film optical quality is potential for monitoring and early prevention of dry eye.
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Wu MF, Chen YH, Chen HC, Huang WC. Interactions among Obstructive Sleep Apnea Syndrome Severity, Sex, and Obesity on Circulatory Inflammatory Biomarkers in Patients with Suspected Obstructive Sleep Apnea Syndrome: A Retrospective, Cross-Sectional Study. Int J Environ Res Public Health 2020; 17:ijerph17134701. [PMID: 32629899 PMCID: PMC7369776 DOI: 10.3390/ijerph17134701] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 06/03/2020] [Revised: 06/23/2020] [Accepted: 06/23/2020] [Indexed: 11/16/2022]
Abstract
The interaction among obstructive sleep apnea syndrome (OSAS) severity, sex, and obesity on cardiovascular risk as determined by serum levels of C-reactive protein (CRP), interleukin-6 (IL-6), and tumor necrosis factor-α (TNF-α) remains unclear. Therefore, this study aimed to analyze individual associations between these three OSAS characteristics and three cardiovascular biomarkers and to determine whether the relationship was affected by other features in patients with suspected OSAS. For all participants (n = 100), OSAS severity and sex had an interaction effect on IL-6 level (p = 0.030). Specifically, the male patients (p = 0.005) with severe OSAS had higher IL-6 levels than those with normal to moderate OSAS, but this relationship was not significant in the female patients (p = 0.438). Moreover, in patients with normal to moderate OSAS (p = 0.004), but not in those with severe OSAS (p = 0.824), the female patients had higher IL-6 levels than the male patients. Both CRP (p = 0.001) and IL-6 (p = 0.000) levels were higher in the obese group than in the non-obese group independently of OSAS severity and sex. The three features had no effects on TNF-α level individually and interactively. Our findings suggest that circulatory inflammatory markers should be comprehensively evaluated in this population and that treatment and preventive therapies should be modified accordingly.
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Affiliation(s)
- Ming-Feng Wu
- Division of Chest Medicine, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung 407, Taiwan; (M.-F.W.); (H.-C.C.)
- Department of Medical Laboratory Science and Biotechnology, Central Taiwan University of Science and Technology, Taichung 406, Taiwan;
| | - Yu-Hsuan Chen
- Department of Medical Laboratory Science and Biotechnology, Central Taiwan University of Science and Technology, Taichung 406, Taiwan;
| | - Hui-Chen Chen
- Division of Chest Medicine, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung 407, Taiwan; (M.-F.W.); (H.-C.C.)
| | - Wei-Chang Huang
- Division of Chest Medicine, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung 407, Taiwan; (M.-F.W.); (H.-C.C.)
- Department of Life Sciences, National Chung-Hsing University, Taichung 402, Taiwan
- Department of Medical Technology, Jen-Teh Junior College of Medicine, Nursing and Management, Miaoli 350, Taiwan
- Department of Industrial Engineering and Enterprise Information, Tunghai University, Taichung 407, Taiwan
- Correspondence: ; Tel.: +886-4-2359-2525 (ext. 4054)
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14
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Wu MF, Chen CS, Chen IS, Kuo TH, Wen CY, A. Sethares W. Design of Carryable Intravenous Drip Frame with Automatic Balancing. Sensors (Basel) 2020; 20:s20030793. [PMID: 32024013 PMCID: PMC7038782 DOI: 10.3390/s20030793] [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] [Subscribe] [Scholar Register] [Received: 11/26/2019] [Revised: 01/22/2020] [Accepted: 01/26/2020] [Indexed: 06/10/2023]
Abstract
Due to the inconvenience of the conventional intravenous drip frame, the piggyback intravenous drip frame is developed to improve the mobility of the patient. However, the current design of the drip frame leads to a lack of balance control and increment of blood returning. To this end, the proposed system aims to solve this problem, and a fuzzy proportionalintegral-derivative control technique is developed to demonstrate the system feasibility. Accordingly, a reliable balanced system can be applied to facilitate patients' movements and ensure patient safety with compensating the inclination angle of the drip frame such that the reduction of blood returning and the balance control of the piggyback intravenous drip frame can be achieved.
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Affiliation(s)
- Ming-Feng Wu
- Division of Chest Medicine, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung 407, Taiwan;
- Department of Medical Laboratory Science and Biotechnology, Central Taiwan University of Science and Technology, Taichung 406, Taiwan
| | - Chia-Shan Chen
- Department of Electrical Engineering, Innovation and Development Center of Sustainable Agriculture (IDCSA), National Chung Hsing University, Taichung 402, Taiwan; (C.-S.C.); (I.-S.C.); (T.-H.K.)
| | - I-Shan Chen
- Department of Electrical Engineering, Innovation and Development Center of Sustainable Agriculture (IDCSA), National Chung Hsing University, Taichung 402, Taiwan; (C.-S.C.); (I.-S.C.); (T.-H.K.)
| | - Tz-Hau Kuo
- Department of Electrical Engineering, Innovation and Development Center of Sustainable Agriculture (IDCSA), National Chung Hsing University, Taichung 402, Taiwan; (C.-S.C.); (I.-S.C.); (T.-H.K.)
| | - Chih-Yu Wen
- Department of Electrical Engineering, Innovation and Development Center of Sustainable Agriculture (IDCSA), National Chung Hsing University, Taichung 402, Taiwan; (C.-S.C.); (I.-S.C.); (T.-H.K.)
| | - William A. Sethares
- Department of Electrical and Computer Engineering, University of Wisconsin-Madison, Madison, WI 53706, USA;
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15
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Chen CC, Shiau SY, Wu MF, Wu YR. Hybrid classical-quantum linear solver using Noisy Intermediate-Scale Quantum machines. Sci Rep 2019; 9:16251. [PMID: 31700001 PMCID: PMC6838121 DOI: 10.1038/s41598-019-52275-6] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/20/2019] [Accepted: 10/14/2019] [Indexed: 11/08/2022] Open
Abstract
We propose a realistic hybrid classical-quantum linear solver to solve systems of linear equations of a specific type, and demonstrate its feasibility with Qiskit on IBM Q systems. This algorithm makes use of quantum random walk that runs in [Formula: see text](N log(N)) time on a quantum circuit made of [Formula: see text](log(N)) qubits. The input and output are classical data, and so can be easily accessed. It is robust against noise, and ready for implementation in applications such as machine learning.
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Affiliation(s)
- Chih-Chieh Chen
- Electronic and Optoelectronic System Research Laboratories, Industrial Technology Research Institute, Hsinchu, 31057, Taiwan.
| | - Shiue-Yuan Shiau
- Physics Division, National Center for Theoretical Sciences, Hsinchu, 30013, Taiwan
| | - Ming-Feng Wu
- Electronic and Optoelectronic System Research Laboratories, Industrial Technology Research Institute, Hsinchu, 31057, Taiwan
| | - Yuh-Renn Wu
- Graduate Institute of Photonics and Optoelectronics and Department of Electrical Engineering, National Taiwan University, Taipei, 10617, Taiwan.
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16
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Huang WC, Huang CC, Wu PC, Chen CJ, Cheng YH, Chen HC, Lee CH, Wu MF, Hsu JY. The association between airflow limitation and blood eosinophil levels with treatment outcomes in patients with chronic obstructive pulmonary disease and prolonged mechanical ventilation. Sci Rep 2019; 9:13420. [PMID: 31530874 PMCID: PMC6748958 DOI: 10.1038/s41598-019-49918-z] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2018] [Accepted: 08/29/2019] [Indexed: 01/20/2023] Open
Abstract
The clinical implications of airflow limitation severity and blood eosinophil level in patients with chronic obstructive pulmonary disease (COPD) and prolonged mechanical ventilation (PMV) are unknown. Thus, this study aimed to identify whether or not these two indicators were significantly associated with short-term in-respiratory care center (RCC) treatment outcomes in this population. Of all participants (n = 181) in this retrospective cross-sectional study, 41.4%, 40.9%, 8.3%, and 52.5% had prolonged RCC admission (RCC length of stay >21 days), failed weaning, death, and any adverse outcomes of interest, respectively. Compared to participants without any adverse outcomes of interest, moderate (the Global Initiative for Chronic Obstructive Lung Disease (GOLD) II) and/or severe (GOLD III) airflow limitation were significantly associated with short-term in-RCC adverse outcomes in terms of failed weaning (for III versus I, OR = 15.06, p = 0.003) and having any adverse outcomes of interest (for II versus I, OR = 17.66, p = 0.002; for III versus I, OR = 37.07, p = 0.000) though the severity of airflow limitation did not have associations with prolonged RCC admission and death after adjustment. Meanwhile, blood eosinophilia defined by various cut-off values was not associated with any adverse outcomes. The findings have significant clinical implications and are useful in the management of patients with COPD and PMV.
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Affiliation(s)
- Wei-Chang Huang
- Division of Chest Medicine, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, 407, Taiwan.,Department of Medical Technology, Jen-Teh Junior College of Medicine, Nursing and Management, Miaoli, 356, Taiwan.,Department of Life Sciences, National Chung Hsing University, Taichung, 402, Taiwan.,Department of Industrial Engineering and Enterprise Information, Tunghai University, Taichung, 407, Taiwan
| | - Chen-Cheng Huang
- Division of Chest Medicine, Department of Internal Medicine, Taichung Hospital, Ministry of Health and Welfare, Taichung, 403, Taiwan
| | - Pi-Chu Wu
- Nursing Department, Taichung Veterans General Hospital, Taichung, 407, Taiwan
| | - Chao-Jung Chen
- Nursing Department, Taichung Veterans General Hospital, Taichung, 407, Taiwan
| | - Ya-Hua Cheng
- Division of Critical Care and Respiratory Therapy, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, 407, Taiwan
| | - Hui-Chen Chen
- Division of Chest Medicine, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, 407, Taiwan
| | - Ching-Hsiao Lee
- Department of Medical Technology, Jen-Teh Junior College of Medicine, Nursing and Management, Miaoli, 356, Taiwan
| | - Ming-Feng Wu
- Division of Chest Medicine, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, 407, Taiwan.,Department of Medical Laboratory Science and Biotechnology, Central Taiwan University of Science and Technology, Taichung, 406, Taiwan
| | - Jeng-Yuan Hsu
- Division of Clinical Research, Department of Medical Research, Taichung Veterans General Hospital, Taichung, 407, Taiwan. .,School of Medicine, China Medical University, Taichung, 404, Taiwan. .,School of Physical Therapy, Chung-Shan Medical University, Taichung, 402, Taiwan.
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17
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Huang CC, Wu MF, Chen HC, Huang WC. In vitro activity of aminoglycosides, clofazimine, d-cycloserine and dapsone against 83 Mycobacterium avium complex clinical isolates. Journal of Microbiology, Immunology and Infection 2018; 51:636-643. [DOI: 10.1016/j.jmii.2017.05.001] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Subscribe] [Scholar Register] [Received: 01/04/2016] [Revised: 04/04/2017] [Accepted: 05/15/2017] [Indexed: 01/15/2023]
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18
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Xiang HM, Zhang T, Wen F, Qu H, Wu MF, Geng KN, Li GS, Wang YM, Han X, Liu ZX, Zhong FB, Ye KX, Zhang SB, Gao X. Development of an ordinary mode multi-channel correlation reflectometer on EAST tokamak. Rev Sci Instrum 2018; 89:10H103. [PMID: 30399842 DOI: 10.1063/1.5035445] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/16/2018] [Accepted: 05/27/2018] [Indexed: 06/08/2023]
Abstract
An ordinary-mode polarized multi-channel correlation reflectometer has been developed on the Experimental Advanced Superconducting Tokamak (EAST). The system with four different probing frequencies (i.e., 20.4 GHz, 24.8 GHz, 33 GHz, and 40 GHz) and two poloidally spaced receiving antennas can realize both the radial correlation measurement and the poloidal correlation measurement. These diagnostics focus on the measurement of density fluctuation in the pedestal region to investigate the turbulence transport and H-mode physics on EAST. In this article, the system hardware design, the key component tests, and the system performance are shown in detail.
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Affiliation(s)
- H M Xiang
- Institute of Plasma Physics, Chinese Academy of Sciences, P.O. Box 1126, Hefei, Anhui 230031, People's Republic of China
| | - T Zhang
- Institute of Plasma Physics, Chinese Academy of Sciences, P.O. Box 1126, Hefei, Anhui 230031, People's Republic of China
| | - F Wen
- Institute of Plasma Physics, Chinese Academy of Sciences, P.O. Box 1126, Hefei, Anhui 230031, People's Republic of China
| | - H Qu
- Institute of Plasma Physics, Chinese Academy of Sciences, P.O. Box 1126, Hefei, Anhui 230031, People's Republic of China
| | - M F Wu
- Institute of Plasma Physics, Chinese Academy of Sciences, P.O. Box 1126, Hefei, Anhui 230031, People's Republic of China
| | - K N Geng
- Institute of Plasma Physics, Chinese Academy of Sciences, P.O. Box 1126, Hefei, Anhui 230031, People's Republic of China
| | - G S Li
- Advanced Energy Research Center, Shenzhen University, Shenzhen 518060, People's Republic of China
| | - Y M Wang
- Institute of Plasma Physics, Chinese Academy of Sciences, P.O. Box 1126, Hefei, Anhui 230031, People's Republic of China
| | - X Han
- Institute of Plasma Physics, Chinese Academy of Sciences, P.O. Box 1126, Hefei, Anhui 230031, People's Republic of China
| | - Zi X Liu
- University of Science and Technology of China, Hefei 230026, People's Republic of China
| | - F B Zhong
- Institute of Plasma Physics, Chinese Academy of Sciences, P.O. Box 1126, Hefei, Anhui 230031, People's Republic of China
| | - K X Ye
- Institute of Plasma Physics, Chinese Academy of Sciences, P.O. Box 1126, Hefei, Anhui 230031, People's Republic of China
| | - S B Zhang
- Institute of Plasma Physics, Chinese Academy of Sciences, P.O. Box 1126, Hefei, Anhui 230031, People's Republic of China
| | - X Gao
- Institute of Plasma Physics, Chinese Academy of Sciences, P.O. Box 1126, Hefei, Anhui 230031, People's Republic of China
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19
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Huang WC, Lee CH, Wu MF, Huang CC, Hsu CH, Chen HC, Hsu JY, Huang CC. Clinical features, bacteriology of endotracheal aspirates and treatment outcomes of patients with chronic obstructive pulmonary disease and community-acquired pneumonia in an intensive care unit in Taiwan with an emphasis on eosinophilia versus non-eosinophilia: a retrospective case-control study. BMJ Open 2018; 8:e020341. [PMID: 30206074 PMCID: PMC6144339 DOI: 10.1136/bmjopen-2017-020341] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/31/2017] [Revised: 06/20/2018] [Accepted: 07/27/2018] [Indexed: 11/04/2022] Open
Abstract
OBJECTIVES The clinical implications of blood eosinophil level in patients with chronic obstructive pulmonary disease (COPD) and community-acquired pneumonia (CAP) requiring invasive mechanical ventilation (IMV) and intensive care unit (ICU) admission are still unknown. Thus, this study aimed to compare the features of such patients with and without blood eosinophilia. DESIGN This was a retrospective case-control study. SETTING An ICU of a medical centre in central Taiwan. PARTICIPANTS A total of 262 patients with COPD and CAP requiring IMV and ICU admission. RESULTS Of all participants (n=262), 32 (12.2%) had an eosinophil percentage (EP) >2% and 169 (64.5%) had an absolute eosinophil count (AEC) >300 cells/µL. Regardless of whether 2% or 300 cells/µL was used as a cut-off value, the eosinophilia group were slightly older (years) (82.9±5.4 vs 78.1±9.1, p=0.000 and 79.2±8.4 vs 77.6±9.6, p=0.246, respectively), and had a higher forced expiratory volume in 1 s/forced vital capacity (%) (56.0±8.0 vs 51.3±11.6, p=0.005 and 53.1±11.2 vs 49.5±11.2, p=0.013, respectively), less severe spirometric classification (p=0.008 and p=0.001, respectively), and lower white cell count 109/L (8.8±3.2 vs 11.1±4.9, p=0.009 and 10.3±4.4 vs 11.8±5.3, p=0.017, respectively) than the non-eosinophilia group. The bacteriology of endotracheal aspirates showed that Pseudomonas aeruginosa and other gram-negative bacilli were the most common organisms in all study groups. Participants with an EP >2% had a shorter ICU length of stay (OR=12.13, p=0.001) than those with an EP ≤2%, while an AEC >300 cells/µL was not associated with any in-ICUoutcomes. CONCLUSIONS The results of this study have significant clinical implications and should be considered when making treatment decisions for the management of patients with COPD and CAP requiring IMV and ICU admission.
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Affiliation(s)
- Wei-Chang Huang
- Department of Life Sciences, National Chung Hsing University, Taichung, Taiwan
- Division of Chest Medicine, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan
- Department of Medical Technology, Jen-Teh Junior College of Medicine, Nursing and Management, Miaoli, Taiwan
| | - Ching-Hsiao Lee
- Department of Medical Technology, Jen-Teh Junior College of Medicine, Nursing and Management, Miaoli, Taiwan
| | - Ming-Feng Wu
- Division of Chest Medicine, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan
- Department of Medical Laboratory Science and Biotechnology, Central Taiwan University of Science and Technology, Taichung, Taiwan
| | - Chen-Cheng Huang
- Division of Chest Medicine, Department of Internal Medicine, Taichung Hospital, Ministry of Health and Welfare, Taichung, Taiwan
| | - Cheng-Hui Hsu
- Division of Chest Medicine, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Hui-Chen Chen
- Division of Chest Medicine, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Jeng-Yuan Hsu
- Division of Clinical Research, Department of Medical Research, Taichung Veterans General Hospital, Taichung, Taiwan
- School of Medicine, China Medical University, Taichung, Taiwan
- School of Physical Therapy, Chung-Shan Medical University, Taichung, Taiwan
| | - Chieh-Chen Huang
- Department of Life Sciences, National Chung Hsing University, Taichung, Taiwan
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Kok VC, Zhang HW, Lin CT, Huang SC, Wu MF. Positive association between hypertension and urinary bladder cancer: epidemiologic evidence involving 79,236 propensity score-matched individuals. Ups J Med Sci 2018; 123:109-115. [PMID: 29911922 PMCID: PMC6055751 DOI: 10.1080/03009734.2018.1473534] [Citation(s) in RCA: 18] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023] Open
Abstract
INTRODUCTION We hypothesized that hypertensive patients harbor a higher risk of urinary bladder (UB) cancer. MATERIAL AND METHODS We performed a population-based cohort study on adults using a National Health Insurance Research Database (NHIRD) dataset. Hypertension and comparison non-hypertensive (COMP) groups comprising 39,618 patients each were propensity score-matched by age, sex, index date, and medical comorbidities. The outcome was incident UB cancer validated using procedure codes. We constructed multivariable Cox models to derive adjusted hazard ratios (aHRs) and 95% confidence intervals (CIs). Cumulative incidence was compared using a log-rank test. RESULTS During a total follow-up duration of 380,525 and 372,020 person-years in the hypertension and COMP groups, 248 and 186 patients developed UB cancer, respectively, representing a 32% increase in the risk (aHR, 1.32; 95% CI, 1.09-1.60). Hypertensive women harbored a significantly increased risk of UB cancer (aHR, 1.55; 95% CI, 1.12-2.13) compared with non-hypertensive women, whereas men with hypertension had a statistically non-significant increased risk (aHR, 1.22; 95% CI, 0.96-1.55). The sensitivity analysis demonstrated that the increased risk was sustained throughout different follow-up durations for the entire cohort; a statistical increase in the risk was also noted among hypertensive men. CONCLUSION This nationwide population-based propensity score-matched cohort study supports a positive association between hypertension and subsequent UB cancer development.
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Affiliation(s)
- Victor C. Kok
- Department of Internal Medicine, Division of Medical Oncology, Kuang Tien General Hospital, Taichung, Taiwan (ROC)
- Disease Informatics Research Unit, Asia University Taiwan, Taichung, Taiwan (ROC)
- CONTACT Victor C. Kok, MMedSc, MD, PhD, FACP, Department of Internal Medicine, Kuang Tien General Hospital, 117 Sha-Tien Rd, Taichung 43303, Taiwan (ROC)
| | - Han-Wei Zhang
- Institute of Population Health Sciences, National Health Research Institutes, Zhunan, Taiwan (ROC)
- PhD Program for Aging, China Medical University, Taichung, Taiwan (ROC)
- Institute of Electrical Control Engineering, Department of Electrical and Computer Engineering, National Chiao Tung University, Hsinchu, Taiwan (ROC)
| | - Chin-Teng Lin
- Brain Research Center, National Chiao Tung University, Hsinchu, Taiwan (ROC)
- Centre for Artificial Intelligence, School of Software, Faculty of Engineering & IT, University of Technology, Sydney, Australia (ROC)
| | - Shih-Chung Huang
- Division of Cardiology, Department of Internal Medicine, Kuang Tien General Hospital, Taichung, Taiwan (ROC)
| | - Ming-Feng Wu
- Department of Medical Intensive Care Unit, Kuang Tien General Hospital, Taichung, Taiwan (ROC)
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Huang WC, Wu MF, Chen HC, Hsu JY. Characteristics and risk factors for inconsistency between the risk of exacerbations and the severity of airflow limitation in COPD based on GOLD 2017: A retrospective, cross-sectional study. PLoS One 2018. [PMID: 29529075 PMCID: PMC5846773 DOI: 10.1371/journal.pone.0193880] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/02/2022] Open
Abstract
Background and objectives The clinical implications of the discordance between the risk of exacerbations and the level of airflow limitation in patients with chronic obstructive pulmonary disease (COPD) are still unknown. This study aimed to clarify the clinical significance of such discordance in the management of COPD by exploring its characteristics and risk factors. Methods In this retrospective, cross-sectional study, participating physicians completed a detailed patient record form for each participating outpatient with COPD. The data, collected by the Taiwan Obstructive Lung Disease consortium, were managed and analyzed. Results Of the enrolled participants, 316 (41.7%) had an inconsistency between the risk of exacerbations and the severity of airflow limitation. Univariate analysis showed that more severe airflow limitation (p = 0.000), higher COPD assessment test (CAT) scores (p = 0.003) and modified Medical Research Council (mMRC) scales (p = 0.008), and the presence of at least one (p = 0.000) or two (p = 0.003) co-morbidities were significantly associated with such inconsistency. More severe airflow limitation (Global Initiative for Chronic Obstructive Lung Disease (GOLD) 3 and 4 classification; odds ratio (OR) = 27.09, p = 0.000 and OR = 25.15, p = 0.000, respectively) and the presence of at least one co-morbidity (OR = 2.01, p = 0.001) were still associated with the inconsistency in multivariate logistic regression analysis. Furthermore, the presence of wheezing (OR = 3.90, p = 0.000) and at least two co-morbidities (OR = 5.43, p = 0.005) were independent risk factors for an inconsistency of a high risk of exacerbations / GOLD 1 or 2 and the CAT score≧10 (OR = 1.58, p = 0.007), mMRC scale 2–4 (OR = 1.53, p = 0.017), and the presence of at least one co-morbidity (OR = 2.55, p = 0.000) for an inconsistency of a low risk of exacerbations / GOLD 3 or 4. Conclusions The patients with COPD and an inconsistency between the risk of exacerbations and level of airflow limitation had unique clinical characteristics and risk factors for this inconsistency. Management of these patients should include more detailed evaluations.
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Affiliation(s)
- Wei-Chang Huang
- Department of Internal Medicine, Division of Chest Medicine, Taichung Veterans General Hospital, Taichung, Taiwan
- Department of Medical Technology, Jen-Teh Junior College of Medicine, Nursing and Management, Miaoli, Taiwan
- Department of Life Sciences, National Chung Hsing University, Taichung, Taiwan
| | - Ming-Feng Wu
- Department of Internal Medicine, Division of Chest Medicine, Taichung Veterans General Hospital, Taichung, Taiwan
- Department of Medical Laboratory Science and Biotechnology, Central Taiwan University of Science and Technology, Taichung, Taiwan
| | - Hui-Chen Chen
- Department of Internal Medicine, Division of Chest Medicine, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Jeng-Yuan Hsu
- Department of Medical Research, Division of Clinical Research, Taichung Veterans General Hospital, Taichung, Taiwan
- School of Medicine, China Medical University, Taichung, Taiwan
- Department of Physical Therapy, Chung-Shan Medical University, Taichung, Taiwan
- * E-mail:
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Wu MF, Hsieh HH, Huang WC, Lu KM, Lin JH, Lin YC, Wang JM, Lin TH. Effects of Analyzer Detection Method, Ethnicity, and Reference Individuals on Reference Interval of Immature Platelet Fraction. Clin Lab 2018; 64:699-708. [DOI: 10.7754/clin.lab.2018.171025] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
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Wu MF, Huang WC, Juang CF, Chang KM, Wen CY, Chen YH, Lin CY, Chen YC, Lin CC. A New Method for Self-Estimation of the Severity of Obstructive Sleep Apnea Using Easily Available Measurements and Neural Fuzzy Evaluation System. IEEE J Biomed Health Inform 2017; 21:1524-1532. [DOI: 10.1109/jbhi.2016.2633986] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/09/2022]
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Deichelbohrer M, Wu MF, Seitz B, Hüttenberger D, Laschke MW, Foth HJ, Wonnenberg B, Wagenpfeil S, Meier C, Bischoff M, Tschernig T. Bacterial keratitis: Photodynamic inactivation reduced experimental inflammation. Exp Ther Med 2017; 14:4509-4514. [PMID: 29104658 DOI: 10.3892/etm.2017.5109] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2016] [Accepted: 03/17/2017] [Indexed: 01/30/2023] Open
Abstract
The successful treatment of bacterial keratitis remains an unsolved clinical problem. The current study aimed to establish a murine keratitis model and to investigate the effect of chlorin e6 (Ce6) and photodynamic inactivation (PDI) on corneal inflammation. The cornea of anesthetized mice was scratched and covered with a bacterial suspension of Pseudomonas aeruginosa. A paste containing Ce6 was applied to the cornea with subsequent exposure to specified light. Two days later the animals were sacrificed, and the globes were processed for light microscopy. Evaluation parameters were the maximal corneal thickness and the severity of the hypopyon. The maximal corneal thickness of 290±16 µm in the infected and untreated group was significantly reduced to 220±8 µm in the infected and treated group (P<0.05). In addition, the hypopyon was less severe in the infected and treated group. In conclusion, the present study indicates that PDI using Ce6 may be a potential approach to treat patients suffering with severe bacterial keratitis.
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Affiliation(s)
- Mona Deichelbohrer
- Institute of Anatomy and Cell Biology, Medical Faculty, Saarland University, D-66424 Homburg/Saar, Germany
| | - Ming-Feng Wu
- Department of Ophthalmology, Saarland University Medical Center/UKS, D-66424 Homburg/Saar, Germany
| | - Berthold Seitz
- Department of Ophthalmology, Saarland University Medical Center/UKS, D-66424 Homburg/Saar, Germany
| | | | - Matthias W Laschke
- Institute of Clinical and Experimental Surgery, Saarland University, Medical Faculty, D-66424 Homburg/Saar, Germany
| | - Hans-Jochen Foth
- Department of Physics, University of Kaiserslautern, D-67663 Kaiserslautern, Germany
| | - Bodo Wonnenberg
- Institute of Anatomy and Cell Biology, Medical Faculty, Saarland University, D-66424 Homburg/Saar, Germany
| | - Stefan Wagenpfeil
- Institute for Medical Biometry, Epidemiology and Medical Informatics, Saarland University, D-66424 Homburg/Saar, Germany
| | - Carola Meier
- Institute of Anatomy and Cell Biology, Medical Faculty, Saarland University, D-66424 Homburg/Saar, Germany
| | - Markus Bischoff
- Institute of Medical Microbiology and Hygiene, Saarland University, Medical Faculty, D-66424 Homburg/Saar, Germany
| | - Thomas Tschernig
- Institute of Anatomy and Cell Biology, Medical Faculty, Saarland University, D-66424 Homburg/Saar, Germany
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Lin GQ, Wu MF, Lin JM. [Percutaneous transluminal septal myocardial ablation by microsphere embolisation for a patient with hypertrophic obstructive cardiomyophthy]. Zhonghua Xin Xue Guan Bing Za Zhi 2017; 45:619-620. [PMID: 28738492 DOI: 10.3760/cma.j.issn.0253-3758.2017.07.012] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
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Shen ZY, Liu C, Wu MF, Shi HF, Zhou YF, Zhuang W, Xia GL. Spiral computed tomography evaluation of rabbit VX2 hepatic tumors treated with 20 kHz ultrasound and microbubbles. Oncol Lett 2017; 14:3124-3130. [PMID: 28928850 DOI: 10.3892/ol.2017.6557] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/28/2015] [Accepted: 05/11/2017] [Indexed: 11/05/2022] Open
Abstract
The aim of the present study was to explore the therapeutic effect of 20 kHz ultrasound (US) and microbubbles (MBs) on rabbit VX2 liver tumors by spiral computed tomography (CT) scanning. A total of 16 New Zealand rabbits with hepatic VX2 tumors were divided into four groups: Control, MB, low-frequency US and US + MB. The treatment effect was evaluated by spiral CT scanning prior to, during and following treatment (at 0 weeks and the end of 1 and 2 weeks). The tumor growth rate was recorded. The specimens of VX2 tumors were collected for histological examination and transmission electron microscopy (TEM). No significant differences were observed between tumor areas measured by CT and pathology after 2-week treatment (P>0.05). The mean tumor growth rates in the control, MB, US and US + MB groups after 2 weeks of treatment were 385±21, 353±12, 302±14 and 154±9%, respectively (P<0.05, US + MB vs. the other three groups). Hematoxylin and eosin staining in the US + MB group revealed coagulation necrosis, interstitial hemorrhage and intravascular thrombosis. In the control, MB and US groups, tumor cells exhibited clear nuclear hyperchromatism. TEM of US + MB revealed vascular endothelial cell wall rupture, widened endothelial cell gaps, interstitial erythrocyte leakage and microvascular thrombosis, while intact vascular endothelial cells and normal erythrocytes in the tumor vessels were observed in the control, MB and US groups. A combination of 20 kHz US and MBs may effectively inhibit rabbit VX2 tumors. Spiral CT scanning is an ideal method to evaluate the US treatment on rabbit tumors.
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Affiliation(s)
- Zhi-Yong Shen
- Department of Radiology, Nantong Tumor Hospital, Nantong, Jiangsu 226361, P.R. China
| | - Chun Liu
- Laboratory Animal Center of Nantong University, Nantong, Jiangsu 226001, P.R. China
| | - Ming-Feng Wu
- Department of Radiology, Nantong Tumor Hospital, Nantong, Jiangsu 226361, P.R. China
| | - Hai-Feng Shi
- Department of Radiology, Nantong Tumor Hospital, Nantong, Jiangsu 226361, P.R. China
| | - Yu-Feng Zhou
- Department of Radiology, Nantong Tumor Hospital, Nantong, Jiangsu 226361, P.R. China
| | - Wei Zhuang
- Department of Radiology, Nantong Tumor Hospital, Nantong, Jiangsu 226361, P.R. China
| | - Gan-Lin Xia
- Department of Radiology, Nantong Tumor Hospital, Nantong, Jiangsu 226361, P.R. China
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Wu MF, Stachon T, Seitz B, Langenbucher A, Szentmáry N. Effect of human autologous serum and fetal bovine serum on human corneal epithelial cell viability, migration and proliferation in vitro. Int J Ophthalmol 2017; 10:908-913. [PMID: 28730081 DOI: 10.18240/ijo.2017.06.12] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2016] [Accepted: 02/06/2017] [Indexed: 12/14/2022] Open
Abstract
AIM To analyze the concentration-dependent effects of autologous serum (AS) and fetal bovine serum (FBS) on human corneal epithelial cell (HCEC) viability, migration and proliferation. METHODS AS was prepared from 13 patients with non-healing epithelial defects Dulbecco's modified eagle medium/Ham's F12 (DMEM/F12) with 5% FBS, 0.5% dimethyl sulphoxide (DMSO), 10 ng/mL human epidermal growth factor, 1% insulin-transferrin-selenium, then were incubated in serum media: DMEM/F12 supplemented by 5%, 10%, 15% or 30% AS or FBS. HCEC viability was analyzed using cell proliferation kit XTT, migration using a wound healing assay, proliferation by the cell proliferation enzyme-linked immunosorbent assay (ELISA) BrdU kit. Statistical analysis was performed using the generalized linear model, the values at 30% AS or 30% FBS were used as the baselines. RESULTS HCEC viability was the highest at 30% AS or 15% FBS and the lowest at 10% AS or 30% FBS application. HCEC migration was the quickest through 30% AS or 30% FBS and the slowest through 5% AS or 5% FBS concentrations. Proliferation was the most increased through 15% AS or 5% FBS and the least increased through 30% AS or 30% FBS concentrations. HCEC viability at 10% and 15% AS was significantly worse (P=0.001, P=0.023) compared to baseline and significantly better at 15% FBS (P=0.003) concentrations. HCEC migration was significantly worse (P≤0.007) and HCEC proliferation significantly better (P<0.001) in all concentration groups compared to baseline. CONCLUSION For the best viability of HCEC 30% AS or 15% FBS, for HCEC migration 30% AS or 30% FBS, for proliferation 15% AS or 5% FBS should be used. Therefore, we suggest the use of 30% AS in clinical practice.
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Affiliation(s)
- Ming-Feng Wu
- Department of Ophthalmology, Saarland University Medical Center, Homburg/Saar 66424, Germany
| | - Tanja Stachon
- Department of Ophthalmology, Saarland University Medical Center, Homburg/Saar 66424, Germany
| | - Berthold Seitz
- Department of Ophthalmology, Saarland University Medical Center, Homburg/Saar 66424, Germany
| | - Achim Langenbucher
- Experimental Ophthalmology, Saarland University, Homburg/Saar 66424, Germany
| | - Nóra Szentmáry
- Department of Ophthalmology, Saarland University Medical Center, Homburg/Saar 66424, Germany.,Department of Ophthalmology, Semmelweis University, Budapest 1085, Hungary
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Szentmáry N, Stachon T, Wu MF, Bischoff M, Huber M, Langenbucher A, Seitz B. [Growth Factor Concentration in Keratocyte Supernatant after Incubation with Human Serum In Vitro]. Klin Monbl Augenheilkd 2017; 235:840-845. [PMID: 28575912 DOI: 10.1055/s-0043-106856] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
PURPOSE Application of serum eye drops is an alternative treatment option for therapy-resistant corneal epithelial defects. In case of persisting epithelial defects, cytokines, which are secreted from stromal keratocytes, may play a role in epithelial wound healing. Our aim was to analyze fibroblast growth factor basic (FGFb), hepatocyte growth factor (HGF), keratinocyte growth factor (KGF) and transforming growth factor β1 (TGF-β1) concentration in the supernatant of keratocytes, after incubation with human serum (HS). MATERIALS AND METHODS Serum eye drops of 10 patients were prepared using the standards of the LIONS Eye Bank Saar-Lor-Lux, Trier/Westpfalz, and were stored at - 80 °C. Primary human keratocytes were isolated from human corneoscleral rings using collagenase A (1 mg/ml) (n = 1) and were cultured in DMEM/Ham's culture medium with 10% fetal bovine serum (FBS). Thereafter, keratocyte cultures were incubated in 15 or 30% HS (in DMEM/F14 without FBS) and FGFb, HGF, KGF and TGF-β1 concentration was determined with an enzyme-linked immunoabsorbent assay (ELISA) from the supernatant of the culture after 24 hours. We used 15 or 30% HS without keratocytes (under the same storage conditions) as controls. RESULTS HGF concentration was, for both HS concentrations, significantly higher in the supernatant of keratocytes, than in HS controls (without keratocytes) following 24 hours (p < 0.01). FGFb concentration was significantly increased in 30% HS with keratocytes compared to 30% HS without keratocytes after 24 hours (p < 0.01). TGF-β1 and KGF concentrations remained unchanged through keratocytes. CONCLUSION HGF and FGFb concentrations increase in the supernatant of keratocytes, 24 hours after incubation with human serum. These concentration changes may play a role in wound healing of epithelial defects.
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Affiliation(s)
- Nóra Szentmáry
- Klinik für Augenheilkunde, Universitätsklinikum des Saarlandes, Homburg/Saar.,Klinik für Augenheilkunde, Semmelweis Universität, Budapest, Ungarn
| | - Tanja Stachon
- Klinik für Augenheilkunde, Universitätsklinikum des Saarlandes, Homburg/Saar
| | - Ming-Feng Wu
- Klinik für Augenheilkunde, Universitätsklinikum des Saarlandes, Homburg/Saar
| | - Mona Bischoff
- Klinik für Augenheilkunde, Universitätsklinikum des Saarlandes, Homburg/Saar
| | - Manuela Huber
- Klinik für Augenheilkunde, Universitätsklinikum des Saarlandes, Homburg/Saar
| | - Achim Langenbucher
- Institut für Experimentelle Ophthalmologie, Universität des Saarlandes, Homburg/Saar
| | - Berthold Seitz
- Klinik für Augenheilkunde, Universitätsklinikum des Saarlandes, Homburg/Saar
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Wu MF, Deichelbohrer M, Tschernig T, Laschke MW, Szentmáry N, Hüttenberger D, Foth HJ, Seitz B, Bischoff M. Chlorin e6 mediated photodynamic inactivation for multidrug resistant Pseudomonas aeruginosa keratitis in mice in vivo. Sci Rep 2017; 7:44537. [PMID: 28295043 PMCID: PMC5353637 DOI: 10.1038/srep44537] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/12/2016] [Accepted: 02/10/2017] [Indexed: 12/13/2022] Open
Abstract
Following corneal epithelium scratches, mouse corneas were infected with the multidrug resistant (MDR) P. aeruginosa strain PA54. 24 hours later, 0% (for control group), 0.01%, 0.05% or 0.1% Chlorin e6 (Ce6), a second generation photosensitizer derived from chlorophyll, was combined with red light, for photodynamic inactivation (PDI). 1 hour or 2 days later, entire mouse eyes were enucleated and homogenized for counting colony forming units (CFU) of P. aeruginosa. For comparison, 0.1% Ce6 mediated PDI was started at 12 hours post infection, and 0.005% methylene blue mediated PDI 24 hours post infection. Clinical scores of corneal manifestation were recorded daily. Compared to the control, CFU 1 hour after PDI started 24 hours post infection in the 0.01% Ce6 and 0.05% Ce6 groups were significantly lower (more than one log10 reduction), the CFU 2 days post PDI higher in the 0.1% Ce6 group, clinical score lower in the 0.1% Ce6 group at 1 day post PDI. These findings suggest that PDI with Ce6 and red light has a transient efficacy in killing MDR-PA in vivo, and repetitive PDI treatments are required to fully resolve the infection. Before its clinical application, the paradoxical bacterial regrowth post PDI has to be further studied.
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Affiliation(s)
- Ming-Feng Wu
- Department of Ophthalmology, Saarland University Medical Center, Homburg/Saar, Germany.,Department of Ophthalmology, Union Hospital, Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - Mona Deichelbohrer
- Institute for Anatomy and Cell Biology, Saarland University, Homburg/Saar, Germany
| | - Thomas Tschernig
- Institute for Anatomy and Cell Biology, Saarland University, Homburg/Saar, Germany
| | - Matthias W Laschke
- Institute for Clinical &Experimental Surgery, Saarland University, Homburg/Saar, Germany
| | - Nóra Szentmáry
- Department of Ophthalmology, Saarland University Medical Center, Homburg/Saar, Germany.,Department of Ophthalmology, Semmelweis University, Budapest, Hungary
| | | | - Hans-Jochen Foth
- Department of Physics, University of Kaiserslautern, Kaiserslautern, Germany
| | - Berthold Seitz
- Department of Ophthalmology, Saarland University Medical Center, Homburg/Saar, Germany
| | - Markus Bischoff
- Institute for Medical Microbiology and Hygiene, Saarland University, Homburg/Saar, Germany
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Deichelbohrer M, Wu MF, Seitz B, Wagenpfeil S, Meier C, Bischoff M, Tschernig T. Gaseous nitric oxide for the local treatment of bacterial keratitis in mice. Biomed Rep 2017; 6:75-78. [PMID: 28123711 DOI: 10.3892/br.2016.821] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/10/2016] [Accepted: 11/11/2016] [Indexed: 11/06/2022] Open
Abstract
The successful treatment of severe bacterial keratitis continues to be a challenge in animals and humans. In the present study the aim was to assess gaseous therapy using gaseous nitric oxide (gNO) in a murine model of Pseudomonas aeruginosa keratitis. The cornea of anesthetized mice was mechanically scratched and covered with a bacterial suspension of P. aeruginosa. One day later, the infected eyes were exposed to 200 ppm NO for 30 min. Three to seven days later the mice were sacrificed and the bulbi were obtained and processed for light microscopy. The read out parameter was the maximal corneal thickness and the severity of the hypopyon. The therapy with NO did not result in either a reduction of inflammation concerning the maximal corneal thickness or the severity of the hypopyon. The bacterial load was not investigated due to technical limitations. Thus, exposure to gNO did not reduce the local inflammation in P. aeruginosa induced murine keratitis at the investigated time-points. This does not exclude effects of NO on the bacterial load, and in experimental and human keratitis.
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Affiliation(s)
- Mona Deichelbohrer
- Institute of Anatomy and Cell Biology, Saarland University Faculty of Medicine, Homburg, D-66424 Saar, Germany
| | - Ming-Feng Wu
- Department of Ophthalmology, Saarland University Medical Center, Homburg, D-66424 Saar, Germany
| | - Berthold Seitz
- Department of Ophthalmology, Saarland University Medical Center, Homburg, D-66424 Saar, Germany
| | - Stefan Wagenpfeil
- Institute for Medical Biometry, Epidemiology and Medical Informatics, Saarland University, Homburg, D-66424 Saar, Germany
| | - Carola Meier
- Institute of Anatomy and Cell Biology, Saarland University Faculty of Medicine, Homburg, D-66424 Saar, Germany
| | - Markus Bischoff
- Institute of Medical Microbiology and Hygiene, Saarland University Faculty of Medicine, Homburg, D-66424 Saar, Germany
| | - Thomas Tschernig
- Institute of Anatomy and Cell Biology, Saarland University Faculty of Medicine, Homburg, D-66424 Saar, Germany
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Abstract
INTRODUCTION This study aims to evaluate the hearing gain efficacy from adjunctive hyperbaric oxygen (HBO₂) treatment in patients with idiopathic sudden sensorineural hearing loss (ISSHL). MATERIALS AND METHODS A retrospective analysis of chart reviews was performed on patients with ISSHL between January 2013 through December 2015. All patients were referred to us from our ENT Department for adjunctive hyperbaric oxygen treatment. The results were assessed through pure-tone audiometry (PTA) data change (hearing gain), both before and after HBO₂) treatment. Age, gender, affected ear side, HBO₂) treatment sessions, both before and after HBO₂ treatment PTA were all recorded. RESULTS Ninety-three (93) patients with ISSHL were included in the study. The average hearing gain in this study was 17.9 dB (p=0.001), where a total of 46 (49.46%) patients showed an improvement (hearing gain≥dB) in response to HBO₂ treatment (p=0.002). Patients with the poorest initial severity of hearing loss who displayed a greater degree of hearing improvement after HBO₂ treatment were male and in the 40- to 59-year-old age group. CONCLUSION This study found that adjunctive hyperbaric oxygen treatment was efficacious for patients with idiopathic sudden sensorineural hearing loss. The total average hearing gain was recorded to be 17.9 dB.
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Affiliation(s)
- Chun-Shih Chin
- Division of Pulmonary and Critical Care Medicine, and Hyperbaric Oxygen Therapy Center, Department of Internal Medicine, Taichung Veterans General Hospital, Taiwan, Republic of China; Division of Chest Medicine, Department of Internal Medicine, Taichung Veterans General Hospital, Taiwan, Republic of China
| | - Tsai-Yun Lee
- Division of Pulmonary and Critical Care Medicine, and Hyperbaric Oxygen Therapy Center, Department of Internal Medicine, Taichung Veterans General Hospital, Taiwan, Republic of China
| | - Ming-Feng Wu
- Division of Chest Medicine, Department of Internal Medicine, Taichung Veterans General Hospital, Taiwan, Republic of China; Department of Medical Laboratory Science and Biotechnology, Central Taiwan University of Science and Technology, Taiwan, Republic of China
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Yang CH, Hsiao JL, Wu MF, Lu MH, Chang HM, Ko WS, Chiou YL. The declined levels of inflammatory cytokines related with weaning rate during period of septic patients using ventilators. Clin Respir J 2016; 12:772-778. [PMID: 27925446 DOI: 10.1111/crj.12593] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/31/2016] [Revised: 11/04/2016] [Accepted: 11/11/2016] [Indexed: 12/15/2022]
Abstract
INTRODUCTION Approximately 50% of patients with sepsis-induced acute lung injury and acute respiratory distress syndrome require mechanical ventilation. Patients with extended mechanical ventilator use routinely develop reinfections, which increases hospital stay, mortality, and health care cost. Some studies have pointed out inflammatory factors concentrations can affect ventilator weaning, but do not indicate changed inflammatory factors related to ventilator weaning during using ventilators. OBJECTIVES This study aimed to investigate during period of septic patients using ventilators, the inflammatory cytokines concentrations related with weaning rate. METHODS Blood was collected from 35 septic patients before and during ventilator use on days 1, 7, 14, and 21 (or weaning). RESULTS 58.3% (N = 20) of septic patients with mechanical ventilators were weaned successfully within 21 days (ventilator weaned group, VW), 16.7% (N = 6) did not wean within 21 days (ventilator dependent group, VD), and 25% died (death group) in hospital. Before ventilator use, higher C-reactive protein (CRP), IL-6, and IL-8 levels were measured in the death group than in all other groups (P < .05). During ventilator use, CRP, IL-6, and IL-8 concentrations declined significantly in VW and VD patients (P < .05). In addition, IL-6 concentrations in the VW group were significantly lower than in the VD group at 14 and 21 days (P < .05). CONCLUSION The factors of ventilators weaning successfully such as disease control, nutritional status, and so on. The declined levels of serum inflammatory cytokines, especially IL-6, improved inflammation status might be one factor of successfully weaning during septic patients on ventilators.
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Affiliation(s)
- Chao-Huei Yang
- Department of Pulmonary Medicine, Kuang-Tien General Hospital, Taichung, Taiwan, Republic of China
| | - Jung-Lung Hsiao
- Department of Critical Care Medicine, Kuang-Tien General Hospital, Taichung, Taiwan, Republic of China
| | - Ming-Feng Wu
- Department of Internal Medicine, Kuang-Tien General Hospital, Taichung, Taiwan, Republic of China
| | - Mei-Hua Lu
- Department of Nursing, Kuang-Tien General Hospital, Taichung, Taiwan, Republic of China
| | - Hui-Ming Chang
- Department of Nursing, Kuang-Tien General Hospital, Taichung, Taiwan, Republic of China
| | - Wang-Sheng Ko
- Department of Internal Medicine, Kuang-Tien General Hospital, Taichung, Taiwan, Republic of China.,Department of Nutrition and Institute of BioMedical Nutrition, Hungkuang University, Taichung, Taiwan, Republic of China
| | - Ya-Ling Chiou
- Department of Nutrition and Institute of BioMedical Nutrition, Hungkuang University, Taichung, Taiwan, Republic of China
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Wu MF, Sun ZC, Yang B, Yu SS. A Hierarchical Object-oriented Urban Land Cover Classification Using WorldView-2 Imagery and Airborne LiDAR data. ACTA ACUST UNITED AC 2016. [DOI: 10.1088/1755-1315/46/1/012016] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Wu MF, Stachon T, Langenbucher A, Seitz B, Szentmáry N. Effect of Amniotic Membrane Suspension (AMS) and Amniotic Membrane Homogenate (AMH) on Human Corneal Epithelial Cell Viability, Migration and Proliferation In Vitro. Curr Eye Res 2016; 42:351-357. [PMID: 27420558 DOI: 10.1080/02713683.2016.1192193] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
Abstract
PURPOSE To analyze the effects of different concentrations of amniotic membrane suspension (AMS) or amniotic membrane homogenate (AMH) on human corneal epithelial cell (HCEC) viability, migration and proliferation. METHODS Amniotic membranes (AMs) of 13 placentas were prepared and stored at -80°C. For AMS preparation, following de-freezing, AM pieces were inserted in six-well plates and 5 ml Dulbecco's Modified Eagle's Medium (DMEM)/F12 (with 5% fetal bovine serum, FBS) per gram tissue was added for 96 h. After removal of the AM, the remaining supernatant was collected for experiments. For AMH preparation, following de-freezing, AMs were homogenized in liquid nitrogen and 5 ml DMEM/F12 (with 5% FBS) per gram tissue was added. Following centrifugation, the supernatant was collected for experiments. HCECs were expanded and incubated in DMEM/F12, 5% FBS supplemented by 15%, 30% or 100% AMS or 15% or 30% AMH. Viability was analyzed using Cell Proliferation Kit XTT, migration using wound healing assay and proliferation by the cell proliferation ELISA BrdU kit. RESULTS HCEC viability remained unchanged using 15% or 30% AMS (p = 1.0 for both); however, it decreased significantly using 100% AMS (p < 0.001) or 15% (p = 0.041) or 30% AMH (p < 0.001), compared to controls. Using 15% or 30% AMS, HCEC migration increased significantly (p < 0.001 for both). Using 15% or 30% AMH (p = 0.153; p = 0.083), HCEC migration remained unchanged and 100% AMS inhibited HCEC migration (p < 0.001). Next, 15% and 30% AMS had no effect on HCEC proliferation (p = 0.454 and p = 0.119), but 100% AMS (p < 0.001) and 15% (p = 0.002) and 30% AMH (p = 0.001) inhibited HCEC proliferation significantly. CONCLUSION With unchanged HCEC viability and proliferation and increased HCEC migration, 15% and 30% AMS application seems to be the most appropriate method to support epithelial healing.
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Affiliation(s)
- Ming-Feng Wu
- a Department of Ophthalmology , Saarland University Medical Center , Homburg , Saar , Germany
| | - Tanja Stachon
- a Department of Ophthalmology , Saarland University Medical Center , Homburg , Saar , Germany
| | - Achim Langenbucher
- b Experimental Ophthalmology , Saarland University , Homburg , Saar , Germany
| | - Berthold Seitz
- a Department of Ophthalmology , Saarland University Medical Center , Homburg , Saar , Germany
| | - Nóra Szentmáry
- a Department of Ophthalmology , Saarland University Medical Center , Homburg , Saar , Germany.,c Department of Ophthalmology , Semmelweis University , Budapest , Hungary
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Huang WC, Wu MF, Chen HC, Hsu JY. Features of COPD patients by comparing CAT with mMRC: a retrospective, cross-sectional study. NPJ Prim Care Respir Med 2015; 25:15063. [PMID: 26538368 PMCID: PMC4633725 DOI: 10.1038/npjpcrm.2015.63] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/27/2015] [Revised: 08/10/2015] [Accepted: 09/08/2015] [Indexed: 11/09/2022] Open
Abstract
BACKGROUND The group assignment of chronic obstructive pulmonary disease (COPD) may differ depending on whether the COPD assessment test (CAT) or modified Medical Research Council dyspnoea scale (mMRC) is used. AIMS This study intended to clarify how different patient characteristics influence the differences, to determine the relationships between CAT and mMRC and to characterise COPD patients by both CAT and mMRC. METHODS This was a retrospective, cross-sectional study. The data, collected by Taiwan Obstructive Lung Disease consortium, were managed and analysed. RESULTS Of the 757 participants, COPD group assignment was not identical as well as no substantial agreement presented when categorised based on the cut-point CAT score ⩾10 and each mMRC cut-point. In all, 38.2% of participants had discordant group assignments together with a lower mean CAT score, less severe airway obstruction and less severe airflow limitation compared with those with concordant group assignments. In the discordant group, the CAT⩾10/mMRC 0-1 subgroup had more wheezing than CAT<10/mMRC⩾2 subgroup. Only moderate correlations existed between CAT and mMRC. More-symptom groups and combined high-risk group had better correlations than less-symptom groups and combined low-risk group, respectively. A modest negative correlation existed between forced expiratory volume in 1 s percentage (FEV1%) predicted and CAT score and between FEV1% predicted and mMRC scale in parallel with a significant positive relationship existing between the CAT score and mMRC scale. Notably, a significant proportion of COPD patients with each scale of mMRC had health status impairment. CONCLUSIONS The Global initiative for Chronic Obstructive Lung Disease committee should redefine the applications of CAT and mMRC in the management of COPD.
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Affiliation(s)
- Wei-Chang Huang
- Division of Chest Medicine, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan.,Department of Medical Technology, Jen-Teh Junior College of Medicine, Nursing and Management, Miaoli, Taiwan
| | - Ming-Feng Wu
- Division of Chest Medicine, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan.,Department of Medical Laboratory Science and Biotechnology, Central Taiwan University of Science and Technology, Taichung, Taiwan
| | - Hui-Chen Chen
- Division of Chest Medicine, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Jeng-Yuan Hsu
- Division of Critical Care and Respiratory Therapy, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan.,School of Medicine, China Medical University, Taichung, Taiwan.,School of Physical Therapy, Chung-Shan Medical University, Taichung, Taiwan
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Wang JM, Li JY, Huang WC, Wen CY, Lee CH, Yang CY, Wu MF. Confirmed False Positive Proteinuria in Patients with Systemic Lupus Erythematosus Taking Hydroxychloroquine: a Spot Sample Measurement. Clin Lab 2015; 61:581-6. [PMID: 26118192 DOI: 10.7754/clin.lab.2014.140706] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BACKGROUND A false-positive screening result is associated with harmful treatment or follow-up costs. This study aimed to estimate the rate of false positive proteinuria with the dipstick in patients with systemic lupus erythematosus (SLE) taking hydroxychloroquine. METHODS A total of 334 patients with a positive dipstick and confirmed by total urine protein with quantification assay were enrolled. The experimental group included those with SLE taking hydroxychloroquine, and the rest was the control group. The difference of the rate of false positive in the dipstick was analyzed using the chi-square test and odds ratio (OR) between groups. Qualitative tracking of potential interference in the dipstick was performed. RESULTS The results revealed that the rate of false positive with a dipstick for the experimental and control groups were 29.5% and 5.0% (p = 0.000), respectively. The OR with 95% confidence interval (CI) of the rate of false positive for the experimental group with respect to the control group was 5.95 (95% CI: 2.80 - 12.65). Qualitative tracking showed that the dipstick was influenced to become false-positive when hydroxychloroquine concentration was ≥ 30 mg/dL. CONCLUSIONS Hydroxychloroquines like plaquenil or geniquin may lead to a high rate of false positive with the dipstick method. A quantification assay is recommended for proteinuria measurement in patients with SLE taking hydroxychloroquines.
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Wu MF, Stachon T, Wang J, Song X, Colanesi S, Seitz B, Wagenpfeil S, Langenbucher A, Szentmáry N. Effect of Keratocyte Supernatant on Epithelial Cell Migration and Proliferation After Corneal Crosslinking (CXL). Curr Eye Res 2015; 41:466-73. [PMID: 26236938 DOI: 10.3109/02713683.2015.1050739] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
PURPOSE To evaluate the effect of keratocyte supernatant (harvesting time, riboflavin concentration and UV-A-light illumination) on migration and proliferation of human corneal epithelial cells (HCECs) by CXL, in vitro. METHODS Primary human keratocytes isolated from 8 normal and 6 keratoconus corneas were cultured. Thereafter, keratocytes in 0%, 0.05% or 1% riboflavin solution were split into samples without and with 370 nm UVA-light-illumination. After removal of the riboflavin solution, keratocytes were incubated in the mentioned keratocyte culture medium at 37 °C and keratocyte supernatant was harvested after 5 and 24 hours. Keratocyte supernatant without riboflavin and UVA treatment, was used as control. HCECs were cultured until reaching confluence, the HCEC culture medium was replaced by the keratocyte supernatant and HCEC migration was analyzed using the wound-healing assay. HCEC proliferation was determined by the cell proliferation ELISA BrdU (colorimetric) kit. Statistical analysis was performed using a linear mixed model in the framework of a Generalized Estimating Equations (GEE) approach to analyze the effect of harvesting time, riboflavin concentration and UV-A-light illumination using IBM-SPSS version 22. RESULTS Riboflavin concentration, UVA-light illumination and harvesting time of normal or keratoconus keratocyte supernatant had no significant impact on HCEC proliferation (p > 0.10). Riboflavin concentration did not show significant impact on HCEC migration using normal or keratoconus keratocyte supernatant (p > 0.10), however, longer harvesting time of normal or keratoconus keratocyte supernatant significantly increased (p = 0.01 for both) and UVA-light illumination of keratoconus keratocyte supernatant (p < 0.001) significantly decreased HCEC migration. CONCLUSION Harvesting time, riboflavin concentration and UV-A-light illumination of normal and keratoconus keratocyte cultures has no impact on proliferation of HCECs, in the short term. However, 24 hours harvesting time (both for normal and keratoconus keratocytes) increases and UVA-light-illumination of keratoconus keratocyte cultures decreases HCEC migration.
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Affiliation(s)
- Ming-Feng Wu
- a Department of Ophthalmology , Saarland University Medical Center , Homburg/Saar , Germany
| | - Tanja Stachon
- a Department of Ophthalmology , Saarland University Medical Center , Homburg/Saar , Germany
| | - Jiong Wang
- a Department of Ophthalmology , Saarland University Medical Center , Homburg/Saar , Germany .,b Department of Ophthalmology , The First Affiliated Hospital of Zhengzhou University , Zhengzhou , China
| | - Xuefei Song
- a Department of Ophthalmology , Saarland University Medical Center , Homburg/Saar , Germany
| | - Sarah Colanesi
- a Department of Ophthalmology , Saarland University Medical Center , Homburg/Saar , Germany
| | - Berthold Seitz
- a Department of Ophthalmology , Saarland University Medical Center , Homburg/Saar , Germany
| | - Stefan Wagenpfeil
- c Institute of Medical Biometry, Epidemiology and Medical Informatics, Saarland University Medical Center , Homburg/Saar , Germany
| | - Achim Langenbucher
- d Department of Experimental Ophthalmology , Saarland University , Homburg/Saar , Germany and
| | - Nóra Szentmáry
- a Department of Ophthalmology , Saarland University Medical Center , Homburg/Saar , Germany .,e Department of Ophthalmology , Semmelweis University , Budapest , Hungary
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Shen ZY, Xia GL, Wu MF, Shi MX, Qiang FL, Shen E, Hu B. The effects of low-frequency ultrasound and microbubbles on rabbit hepatic tumors. Exp Biol Med (Maywood) 2015; 239:747-57. [PMID: 24719377 DOI: 10.1177/1535370214525320] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022] Open
Abstract
High-intensity focused ultrasound in combination with microbubbles (MBs) is able to inhibit the growth of VX2 rabbit liver tumors in vivo and prolong the survival time of the animals. In this study, we attempt to investigate the feasibility of VX2 tumor growth inhibition using low-frequency ultrasound (US)-mediated MB disruption. Forty-eight New Zealand rabbits with hepatic VX2 tumors were divided into four groups: control, MBs group, low-frequency US group, and US + MB group. The parameters of the US were 20 kHz, 2 W/cm², 40% duty cycle, 5 min, and once every other day for 2 weeks. At the end of the therapy experiment, 24 rabbits were euthanized, and the cancers were collected and cut into five sections for histological examination, immunohistochemistry, laser confocal microscopy, western blotting assays, and transmission electron microscopy (TEM). Another 24 rabbits were saved, and overall survival time was recorded. The tumor volumes in control, MB, US, and US + MB groups were 6.36 ± 0.58, 5.68 ± 0.42, 5.29 ± 0.26, and 2.04 ± 0.14 cm³, respectively (US + MB versus the other three groups, P < 0.01). Tumor cells manifested coagulation necrosis with internal calcification. Hematoxylin and eosin (H–E) staining revealed interstitial hemorrhage and intravascular thrombosis. The intensity of cyclooxygenase-2 (COX-2), and vascular endothelial growth factor (VEGF) in the US + MB group in the immunohistochemical staining, laser confocal microscopy, and western blotting assays was lower than that of the other three groups (P < 0.05). TEM of the US + MB group revealed vascular endothelial cell wall rupture, widened endothelial cell gaps, interstitial erythrocyte leakage, and microvascular thrombosis, while intact vascular endothelial cells and normal erythrocytes in the tumor vessels were observed in control, MB, and US groups. Rabbits treated with US + MB had a significantly longer overall survival than those in the other three groups (χ2 = 9.328, P = 0.0242). VX2 tumor growth could be inhibited by cavitation induced using low-frequency US and MB.
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Shen ZY, Xia GL, Hu B, Xie YG, Wu MF. Preoperative ultrasound features as prognostic factors for patients with hepatocellular carcinoma. Radiol Med 2015; 120:504-10. [PMID: 25572544 DOI: 10.1007/s11547-014-0491-z] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2014] [Accepted: 09/04/2014] [Indexed: 12/14/2022]
Abstract
PURPOSE Ultrasound is the most common imaging tool used to scan the tumours of hepatic carcinoma patients. However, very few studies have been performed to evaluate ultrasound imaging features for predicting tumour prognosis. Therefore, the goal of the current study was to evaluate preoperative ultrasound characteristics as prognostic factors that could affect survival rate after liver resection for hepatocellular carcinoma (HCC). MATERIALS AND METHODS A total of 104 HCC patients who underwent resection were retrospectively reviewed with regard to their clinical data, preoperative ultrasound characteristics, and survival rate. Preoperative ultrasound parameters included cirrhosis, tumour site, size, echo pattern, portal vein thrombosis, intra-tumour blood flow signal, peak systolic velocity (V max), and resistance index (RI). The Kaplan-Meier method was used to calculate survival. Pre-resection prognostic factors were assessed using univariate log-rank test and a multivariate Cox proportional hazards model. RESULTS The median survival was 37 months. The 1-, 3-, and 5-year disease-free survival (DFS) rates were 78.85, 53.85, and 26.92 %, respectively, and the overall survival (OS) rates at 1, 3, and 5 years were 85.58, 69.23, and 46.15 %, respectively. On univariate analysis, shorter survival was associated with mixed echo pattern, larger tumour size, portal vein thrombus, affluent flow signal, and higher V max. Application of the Cox multivariate proportional hazards model indicated that tumour size and blood flow signal in the tumours were independent prognostic factors. CONCLUSIONS The overall survival for HCC patients undergoing hepatic resection can be stratified on a sonographic basis of tumour size and intra-nodular vasculature. These prognostic factors may be useful to determine appropriate treatment for HCC patients.
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Affiliation(s)
- Zhi-Yong Shen
- Department of Radiology, Research Institute of Hepatic Tumor of Nantong University, Nantong University Affiliated Nantong Tumor Hospital, No. 30, North Tong-yang Road, Nantong, 226361, Jiangsu, China,
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Shen ZY, Wu MF, Zhang YX, Shen K, Xia GL. Treatment of hepatic carcinoma by low-frequency ultrasound and microbubbles: A case report. Oncol Lett 2014; 9:1249-1253. [PMID: 25663892 PMCID: PMC4314986 DOI: 10.3892/ol.2014.2812] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2014] [Accepted: 12/03/2014] [Indexed: 11/06/2022] Open
Abstract
In vitro and in vivo studies have identified that low-frequency ultrasound (US) and microbubbles (MBs) mediate tumor inhibitory effects. However, the application of US in the clinical setting remains unclear. The aim of the present study was to investigate the clinically therapeutic effect of 20 kHz US in combination with MBs for the treatment of hepatic carcinoma. A 71-year-old male with a hepatic malignant tumor was admitted to Nantong University Affiliated Nantong Tumor Hospital (Nantong, China). The patient was subsequently sonicated with 20 kHz US and MBs over a period of five days. The low-frequency US parameters were set at 20 kHz, 2 W/cm2, duty cycle 40% (on 2 sec, off 3 sec) for a duration of 5 min each day for a total of five days. Computed tomography (CT), contrast-enhanced US (CEUS) and carbohydrate antigen 19-9 (CA19-9) tests were performed to evaluate the therapeutic effects. Although the tumor size increased marginally on CT from 5.4 to 5.6 cm after US treatment, the intensity and enhanced-areas on the CT scans and CEUS decreased. The abdominal lymph node decreased in size, from 2.2 to 1.9 cm, and CA19-9 levels decreased from the pretreatment value of 2,007 to 734 U/ml. Therapy with low-frequency US combined with MBs may exhibit an antivasculature effect and may be used as a palliative treatment for patients with unresectable hepatic malignant tumors.
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Affiliation(s)
- Zhi-Yong Shen
- Department of Radiology, Nantong University Affiliated Nantong Tumor Hospital, Nantong, Jiangsu 226361, P.R. China
| | - Ming-Feng Wu
- Department of Radiology, Nantong University Affiliated Nantong Tumor Hospital, Nantong, Jiangsu 226361, P.R. China
| | - Yi-Xin Zhang
- Department of Radiology, Nantong University Affiliated Nantong Tumor Hospital, Nantong, Jiangsu 226361, P.R. China
| | - Kang Shen
- Department of Radiology, Nantong University Affiliated Nantong Tumor Hospital, Nantong, Jiangsu 226361, P.R. China
| | - Gan-Lin Xia
- Department of Radiology, Nantong University Affiliated Nantong Tumor Hospital, Nantong, Jiangsu 226361, P.R. China
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Wu MF, Hsu JY, Huang WC, Shen GH, Wang JM, Wen CY, Chang KM. Should sleep laboratories have their own predictive formulas for continuous positive airway pressure for patients with obstructive sleep apnea syndrome? J Chin Med Assoc 2014; 77:283-9. [PMID: 24731756 DOI: 10.1016/j.jcma.2014.02.015] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2013] [Accepted: 10/24/2013] [Indexed: 11/24/2022] Open
Abstract
BACKGROUND Several formulas predicting optimal continuous positive airway pressure (CPAP) for obstructive sleep apnea treatment have been developed and diverse parameters selected as predictive factors in different sleep laboratories using different ethnic groups. This study aimed to validate a constructed predictive formula for the study laboratory and to test the hypothesis that sleep laboratories should have their own predictive formulas. METHODS Fifty-seven adult subjects with obstructive sleep apnea syndrome (OSAS) were enrolled in the model-building set and underwent two polysomnography (PSG) studies to diagnose OSAS and titrate for optimal CPAP. A predictive formula, derived from anthropometric and polysomnographic variables, was validated together with two other predictive formulas in 30 subjects by comparing the mean predictive CPAP values, rates of successful prediction, and agreements. RESULTS Regression analysis showed that apnea-hypopnea index (AHI), SaO2nadir (nadir of arterial oxyhemoglobin saturation by pulse oximetry), and body mass index (BMI) strongly correlated with optimal CPAP. The derived predictive formula for the study laboratory was: CPAPpred (predictive CPAP) = 6.380 + 0.033 × AHI - 0.068 × SaO2nadir + 0.171 × BMI (R(2) = 0.335, adjusted R(2) = 0.298). In Taiwan, different predictive formulas used by different sleep laboratories with different independent predictors led to similar mean predictive CPAP values to the mean observed optimal CPAP values, rates of successful prediction, and agreements with the observed optimal CPAP. There were significant differences between the mean predictive CPAP values and mean observed optimal CPAP values, lower rates of successful prediction, and negatively skewed 95% confidence interval (CI) when using a predictive formula derived from different ethnic populations. CONCLUSION A sleep laboratory may not need to have its own predictive formula for determining the optimal effective CPAP but should adopt the one derived from the same ethnicity of OSAS patients as the reference formula.
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Affiliation(s)
- Ming-Feng Wu
- Division of Chest Medicine, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan, ROC; Department of Medical Laboratory Science and Biotechnology, Central Taiwan University of Science and Technology, Taichung, Taiwan, ROC
| | - Jeng-Yuan Hsu
- Division of Chest Medicine, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan, ROC
| | - Wei-Chang Huang
- Division of Chest Medicine, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan, ROC.
| | - Gwan-Han Shen
- Division of Chest Medicine, Department of Internal Medicine, Taichung Veterans General Hospital, Taichung, Taiwan, ROC
| | - Jiunn-Min Wang
- Department of Medical Laboratory, Taichung Veterans General Hospital, Taichung, Taiwan, ROC; Department of Medical Technology, Jen-Teh Junior College of Medicine, Nursing and Management, Miaoli, Taiwan, ROC
| | - Chih-Yu Wen
- Department of Electrical Engineering, National Chung Hsing University, Taichung, Taiwan, ROC
| | - Kang-Ming Chang
- Department of Photonics and Communication Engineering, Asia University, Taichung, Taiwan, ROC
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Wang JM, Wen CY, Lin CY, Li JY, Lee CH, Wu MF. Evaluating the performance of urine conductivity as screening for early stage chronic kidney disease. Clin Lab 2014; 60:635-43. [PMID: 24779298 DOI: 10.7754/clin.lab.2013.130628] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/03/2022]
Abstract
BACKGROUND This study aimed to determine if urine conductivity (Cond) is better for screening early stage chronic kidney disease (CKD) instead of the currently routinely used parameters of urine creatinine (UCr), urine osmolality (Osmo), urine specific gravity (SpGr), and urine protein (UP). METHODS One hundred and forty participants (86 male, 54 female) with eGFR > 60 were grouped as either early stage CKD (kidney damage longer than 3 months with either structural or functional abnormalities [n = 72]) or the control group (without CKD and without kidney damage or functional abnormalities [n = 681]). Sensitivty (Sn) and specificity (Sp) of UP and the ROC curves were calculated. The area under the curve (AUC) with 95% confidence interval (CI) was used to compare Cond, UCr, Osmo, and SpGr. Pearson's correlation was used to analyze the correlation between Cond and UCr, Osmo, and SpGr in the early stage CKD group. RESULTS The Sn and Sp of UP were 22.2% and 92.6%, respectively. By ROC analysis, Cond had the largest AUC (0.752, 95% CI: 0.672-0.832), with 52.9% Sn and 86.1% Sp. Pearson's correlation showed that the coefficient (p < 0.01) of Cond to UCr, Osmo, and SpG were 0.696, 0.907, and 0.820, respectively. CONCLUSIONS Cond has better screening ability than UP for early stage CKD and may be a potential surrogate parameter for Osmo, SpGr and UCr.
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Liu XX, Massey JW, Wu MF, Kim KT, Shore RA, Yılmaz AE, Alù A. Homogenization of three-dimensional metamaterial objects and validation by a fast surface-integral equation solver. Opt Express 2013; 21:21714-21727. [PMID: 24104066 DOI: 10.1364/oe.21.021714] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/02/2023]
Abstract
A homogenization model is applied to describe the wave interaction with finite three-dimensional metamaterial objects composed of periodic arrays of magnetodielectric spheres and is validated with full-wave numerical simulations. The homogenization is based on a dipolar model of the inclusions, which is shown to hold even in the case of densely packed arrays once weak forms of spatial dispersion and the full dynamic array coupling are taken into account. The numerical simulations are based on a fast surface-integral equation solver that enables the analysis of scattering from complex piecewise homogeneous objects. We validate the homogenization model by considering electrically large disk- and cube-shaped arrays and quantify the accuracy of the transition from an array of spheres to a homogeneous object as a function of the array size. Simulation results show that the fields scattered from large arrays with up to one thousand spheres and equivalent homogeneous objects agree well, not only far away from the arrays but also near them.
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Bi YL, Wu MF, Lu LX, Zhou Q, Du F, Sun XT, Tang SF, Xu GT. Functions of corneal endothelial cells do not change after uptake of superparamagnetic iron oxide nanoparticles. Mol Med Rep 2013; 7:1767-72. [PMID: 23588968 DOI: 10.3892/mmr.2013.1418] [Citation(s) in RCA: 10] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2013] [Accepted: 03/27/2013] [Indexed: 11/05/2022] Open
Abstract
To avoid donor tissue shortages, ex vivo cultured human corneal endothelial cell (HCEC) transplantation is a promising therapeutic resource. Superparamagnetic iron oxide nanoparticle (SPION) cell labeling assists HCEC transplantation by attaching the posterior corneal stroma in ex vivo animal models. However, possible functional changes of the HCECs following SPION labeling remain to be determined. In this study, we used SPIONs to label cultured rabbit CECs (RCECs) in order to observe important cell functions and the levels of cell markers. The synthetic SPIONs exhibited superparamagnetism at room temperature, with saturation magnetization of 55.4 emu/g and negligible remanence or coercivity. The ζ-potential was -24.5 mV and the diameter was 101 ± 55 nm. Immunostaining demonstrated a normal density of zonula occluden-1 (ZO-1), nestin and Ki-67 at cellular junctions or in nuclei from RCECs following SPION labeling at 16 µg/ml. MTT cytotoxicity assay, homotypic adhesion assay, quantitative flow cytometric Ki-67 analysis and RCEC pump function measurement demonstrated no significant differences between the cells with or without SPION labeling (P<0.05, for all assays). Results of this study demonstrated successful labeled cultured RCECs with synthetic SPIONs. Labeled cells possessed several important characteristics required to maintain the transparency and refractive parameters of the cornea, including hexagonal cell morphology, higher cell adhesion ability and proliferative potential, cell pump function and the positive expression of several cell markers.
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Affiliation(s)
- Yan-Long Bi
- Department of Ophthalmology, Tongji Hospital Affiliated to Tongji University School of Medicine, Shanghai 200065, P.R. China
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Bi YL, Zhou Q, DU F, Wu MF, Xu GT, Sui GQ. Regulation of functional corneal endothelial cells isolated from sphere colonies by Rho-associated protein kinase inhibitor. Exp Ther Med 2012; 5:433-437. [PMID: 23408756 PMCID: PMC3570180 DOI: 10.3892/etm.2012.816] [Citation(s) in RCA: 12] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2012] [Accepted: 10/01/2012] [Indexed: 11/06/2022] Open
Abstract
Human corneal endothelial cells (HCECs) form a monolayer covering the inner side of the cornea. Since HCECs have lower mitotic activity after birth, damage or disease of HCECs will lead to failure of cellular pump functions and inevitably to corneal stroma oedema and loss of vision. Ex vivo cultured HCEC transplantation is the most promising therapy used to avoid donor tissue shortages. However, proliferation of functional adult HCECs is difficult to achieve using standard cell culture techniques. In this study, we isolated sphere colonies from HCECs, which were characterised as HCEC precursor cells. HCECs from these spheres were incubated with the Rho-associated protein kinase (ROCK) inhibitor Y-27632 (30 μM for 1 h at 37°C) to observe cell pump functions and the levels of several cell markers. Cells from the spheres were immunostained positive for nestin (a marker of immature cells) and for an immature neuronal marker (β3-tubulin). There were no significant differences in the expression of genes associated with cell adhesion or ion transport channels, between the cells with or without Y-27632. However, immunostaining revealed a higher density of Na+/K+-ATPase in cell nuclei from HCECs (sphere-forming) and HCECs (sphere-forming/Y-27632) than normal HCECs. There was a higher resting potential difference and resting short circuit in the HCEC (sphere-forming) and HCEC (sphere-forming/Y-27632) cell lines, compared with normal HCECs. In this study, we successfully cultured functional HCEC cell lines, which possessed several important characteristics required to maintain the transparency and refractive parameters of the human cornea. These included hexagonal cell morphology, higher cell adhesion and proliferation ability, HCEC pump function and positive expression of several cell adhesion markers.
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Affiliation(s)
- Yan-Long Bi
- Department of Ophthalmology, Tongji Hospital affiliated with Tongji University School of Medicine; Shanghai 200065
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Shen ZY, Hu B, Wu MF. Correlation between Blood Flow Signal of Color Flow Imaging and Nottingham Prognostic Index in Patients with Breast Carcinoma. ACTA ACUST UNITED AC 2012; 7:126-130. [PMID: 22740799 DOI: 10.1159/000337766] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/19/2022]
Abstract
BACKGROUND: The purpose of this study was to investigate the relationship between blood supply detected by Doppler ultrasound and the Nottingham Prognostic Index (NPI) in breast cancer patients. PATIENTS AND METHODS: 137 patients with breast carcinoma, who had undergone color Doppler flow imaging (CDFI) and surgery, were involved in this retrospective study. CDFI was divided into 4 levels: absent (grade 0), minimal (grade 1), moderate (grade 2), and marked (grade 3). NPI was calculated as: NPI = 0.2 × tumor size (cm) + grade (I-III) + lymph node score (1-3). All patients were followed until the final observation (July 2010), or until the time of death. The survival state of the patients was divided into 3 categories: healthy survival, metastasis, and death. RESULTS: Blood signal grades were positively correlated with NPI (Spearman r = 0.55926, p < 0.0001) and survival state (χ(2) = 9.0248, p < 0.01). Patients with abundant blood flow signal (grade 2-3) had a significantly shorter overall survival than did those with limited blood flow signal (grade 0-1) (χ(2) = 5.0384, p = 0.0248). CONCLUSION: Flow signal measured by Doppler ultrasound may be useful as a prognostic indicator for patients with breast carcinoma.
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Affiliation(s)
- Zhi-Yong Shen
- Department of Ultrasound in Medicine, Shanghai Jiaotong University Affiliated Sixth People's Hospital, Shanghai Institute of Ultrasound in Medicine, Shanghai, Jiangsu Nantong, China
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Wu MF, Li PC, Chen CC, Ye SS, Chien CT, Yu CC. Cordyceps Sobolifera Extract Ameliorates Lipopolysaccharide-Induced Renal Dysfunction in the Rat. Am J Chin Med 2012; 39:523-35. [DOI: 10.1142/s0192415x11009007] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 01/15/2023]
Abstract
Cordyceps Sobolifera (CS), an economic traditional Chinese herb, may ameliorate nephrotoxicity-induced renal dysfunction in the rat via antioxidant, anti-apoptosis, and anti-autophagy mechanisms. We investigated the water extract of fermented whole broth of CS on lipopolysaccharide (LPS)-induced renal cell injury in vitro and in vivo. CS effect on LPS-induced epithelial Lilly pork kidney (PK1) and Madin-Darby canine kidney epithelial (MDCK) cell death was detected with MTT assay. Two-month treatment of CS effects on renal blood flow (RBF), glomerular filtration rate (GFR), plasma blood urea nitrogen, creatinine level and leukocytes (WBC) count were determined in the LPS-treated rats. We further examined the effects of CS supplement on renal tubular oxidative stress, endoplasmic reticulum stress, apoptosis and autophagy by Western blot analysis. LPS dose-dependently induced PK1 and MDCK cell death, which can be ameliorated by CS treatment. LPS significantly decreased RBF and GFR and increased blood leukocyte counts, plasma blood urea nitrogen and creatinine level in the rat after 24 hours of injury. LPS enhanced renal tubular ER stress, autophagy and apoptosis via by increase protein expressions of GRP78, caspase 12, Beclin-1 and Bax/Bcl-2 ratio. These findings are associated with the significant staining in renal proximal and distal tubular ED-1, GRP78, Beclin-1 autophagy, and TUNEL apoptosis in the LPS-treated kidneys. Two months of CS supplement significantly improved RBF, GFR and WBC values and reduced ED-1, GRP78, Beclin-1 autophagy and TUNEL apoptosis in the LPS-treated kidneys. Long-term CS treatment reduced LPS-induced stress responses and tissue damage possibly via blocking LPS-triggered signaling pathways.
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Affiliation(s)
- Ming-Feng Wu
- Department of Internal Medicine, Kuang-Tien General Hospital, Taichung, Taiwan
| | - Ping-Chia Li
- Department of Occupational Therapy, I-Shou University, Kaohsiung, Taiwan
| | - Chin-Chiu Chen
- Biotechnology Center, Grape King Inc., Chung-Li City, Taiwan
| | - Su-Shin Ye
- Biotechnology Center, Grape King Inc., Chung-Li City, Taiwan
| | - Chiang-Ting Chien
- Department of Medical Research, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Chia-Cherng Yu
- Department of Medical Research, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
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Shafer JA, Heslop HE, Brenner MK, Carrum G, Wu MF, Liu H, Ahmed N, Gottschalk S, Kamble R, Leung KS, Myers GD, Bollard CM, Krance RA. Outcome of hematopoietic stem cell transplant as salvage therapy for Hodgkin's lymphoma in adolescents and young adults at a single institution. Leuk Lymphoma 2010; 51:664-70. [PMID: 20367182 DOI: 10.3109/10428190903580410] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022]
Abstract
For patients with relapsed Hodgkin's lymphoma (HL), high dose chemotherapy with stem cell rescue (HDCT-SCT) may improve survival over chemotherapy alone. We assessed the outcomes of HDCT-SCT in 37 consecutive adolescent and young adult patients with relapsed HL whose malignancy was categorized based on sensitivity to chemotherapy. We determined whether current outcomes supported the use of HDCT-SCT in all of our patients or just those patients with lower-risk characteristics such as chemosensitivity. With a median follow-up of 6.5 years, the 2-year overall survival (OS) was 89% (95% CI: 62-97%) for the chemosensitive patients (n = 21), whereas for patients with resistant disease (n = 16), OS was 53% (95% CI: 25-74%). Both autologous and allogeneic transplants were well tolerated, with 100-day treatment-related mortality under 10%. Our data show encouraging outcomes for patients with chemosensitive relapsed HL who receive hematopoietic stem cell transplant (HSCT) and support the value of the procedure even when the disease is chemoresistant.
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Affiliation(s)
- J A Shafer
- Center for Cell and Gene Therapy, Houston, TX 77030, USA
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Abstract
Block Truncation Coding (BTC) is an efficient technology for image compression. An improved BTC algorithm, namely Ordered Dither Block Truncation Coding (ODBTC), is presented in this study. In order to provide better image quality, the void-and-cluster halftoning is combined with the BTC. The ODBTC results show that the image quality is improved when it is operated in high coding gain applications. Another feature of the ODBTC is the dither array Look Up Table (LUT), which significantly reduces the complexity compared to the BTC.
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Chiu YH, Wu MF, Cheng CH. The influence of exchange rate gains or losses on the operational efficiency of the Taiwanese LED industry — an application of DEA. Journal of Statistics and Management Systems 2008. [DOI: 10.1080/09720510.2008.10701343] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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