1
|
Hsu LA, Yeh YH, Chang CJ, Chen WJ, Tsai HY, Chang GJ. Aldehyde Dehydrogenase 2 (ALDH2) Deficiency, Obesity, and Atrial Fibrillation Susceptibility: Unraveling the Connection. Int J Mol Sci 2024; 25:2186. [PMID: 38396862 PMCID: PMC10888587 DOI: 10.3390/ijms25042186] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2023] [Revised: 02/01/2024] [Accepted: 02/09/2024] [Indexed: 02/25/2024] Open
Abstract
Atrial fibrillation (AF), characterized by structural remodeling involving atrial myocardial degradation and fibrosis, is linked with obesity and transforming growth factor beta 1 (TGF-β1). Aldehyde dehydrogenase 2 (ALDH2) deficiency, highly prevalent in East Asian people, is paradoxically associated with a lower AF risk. This study investigated the impact of ALDH2 deficiency on diet-induced obesity and AF vulnerability in mice, exploring potential compensatory upregulation of nuclear factor erythroid 2-related factor 2 (Nrf2) and heme-oxygenase 1 (HO-1). Wild-type (WT) and ALDH2*2 knock-in (KI) mice were administered a high-fat diet (HFD) for 16 weeks. Despite heightened levels of reactive oxygen species (ROS) post HFD, the ALDH2*2 KI mice did not exhibit a greater propensity for AF compared to the WT controls. The ALDH2*2 KI mice showed equivalent myofibril degradation in cardiomyocytes compared to WT after chronic HFD consumption, indicating suppressed ALDH2 production in the WT mice. Atrial fibrosis did not proportionally increase with TGF-β1 expression in ALDH2*2 KI mice, suggesting compensatory upregulation of the Nrf2 and HO-1 pathway, attenuating fibrosis. In summary, ALDH2 deficiency did not heighten AF susceptibility in obesity, highlighting Nrf2/HO-1 pathway activation as an adaptive mechanism. Despite limitations, these findings reveal a complex molecular interplay, providing insights into the paradoxical AF-ALDH2 relationship in the setting of obesity.
Collapse
Affiliation(s)
- Lung-An Hsu
- Cardiovascular Division, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Tao-Yuan 33305, Taiwan; (Y.-H.Y.); (C.-J.C.); (W.-J.C.); (H.-Y.T.)
| | - Yung-Hsin Yeh
- Cardiovascular Division, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Tao-Yuan 33305, Taiwan; (Y.-H.Y.); (C.-J.C.); (W.-J.C.); (H.-Y.T.)
| | - Chi-Jen Chang
- Cardiovascular Division, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Tao-Yuan 33305, Taiwan; (Y.-H.Y.); (C.-J.C.); (W.-J.C.); (H.-Y.T.)
| | - Wei-Jan Chen
- Cardiovascular Division, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Tao-Yuan 33305, Taiwan; (Y.-H.Y.); (C.-J.C.); (W.-J.C.); (H.-Y.T.)
| | - Hsin-Yi Tsai
- Cardiovascular Division, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Tao-Yuan 33305, Taiwan; (Y.-H.Y.); (C.-J.C.); (W.-J.C.); (H.-Y.T.)
| | - Gwo-Jyh Chang
- Graduate Institute of Clinical Medical Sciences, Chang Gung University, Tao-Yuan 33305, Taiwan;
| |
Collapse
|
2
|
Kuo FC, Tsai HY, Cheng BL, Tsai KJ, Chen PC, Huang YB, Liu CJ, Wu DC, Wu MC, Huang B, Lin MW. Endothelial Mitochondria Transfer to Melanoma Induces M2-Type Macrophage Polarization and Promotes Tumor Growth by the Nrf2/HO-1-Mediated Pathway. Int J Mol Sci 2024; 25:1857. [PMID: 38339136 PMCID: PMC10855867 DOI: 10.3390/ijms25031857] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2023] [Revised: 01/31/2024] [Accepted: 02/01/2024] [Indexed: 02/12/2024] Open
Abstract
Gynecologic tract melanoma is a malignant tumor with poor prognosis. Because of the low survival rate and the lack of a standard treatment protocol related to this condition, the investigation of the mechanisms underlying melanoma progression is crucial to achieve advancements in the relevant gynecological surgery and treatment. Mitochondrial transfer between adjacent cells in the tumor microenvironment regulates tumor progression. This study investigated the effects of endothelial mitochondria on the growth of melanoma cells and the activation of specific signal transduction pathways following mitochondrial transplantation. Mitochondria were isolated from endothelial cells (ECs) and transplanted into B16F10 melanoma cells, resulting in the upregulation of proteins associated with tumor growth. Furthermore, enhanced antioxidation and mitochondrial homeostasis mediated by the Sirt1-PGC-1α-Nrf2-HO-1 pathway were observed, along with the inhibition of apoptotic protein caspase-3. Finally, the transplantation of endothelial mitochondria into B16F10 cells promoted tumor growth and increased M2-type macrophages through Nrf2/HO-1-mediated pathways in a xenograft animal model. In summary, the introduction of exogenous mitochondria from ECs into melanoma cells promoted tumor growth, indicating the role of mitochondrial transfer by stromal cells in modulating a tumor's phenotype. These results provide valuable insights into the role of mitochondrial transfer and provide potential targets for gynecological melanoma treatment.
Collapse
Affiliation(s)
- Fu-Chen Kuo
- School of Medicine, College of Medicine, I-Shou University, Kaohsiung 82445, Taiwan;
- Department of Obstetrics & Gynecology, E-Da Hospital, I-Shou University, Kaohsiung 82445, Taiwan
| | - Hsin-Yi Tsai
- Department of Medical Research, E-Da Hospital and E-Da Cancer Hospital, I-Shou University, Kaohsiung 82445, Taiwan;
- School of Pharmacy, Kaohsiung Medical University, Kaohsiung 80708, Taiwan;
| | - Bi-Ling Cheng
- Department of Biological Sciences, National Sun Yat-sen University, Kaohsiung 80424, Taiwan; (B.-L.C.); (P.-C.C.)
| | - Kuen-Jang Tsai
- Department of General Surgery, E-Da Cancer Hospital, I-Shou University, Kaohsiung 82445, Taiwan;
| | - Ping-Chen Chen
- Department of Biological Sciences, National Sun Yat-sen University, Kaohsiung 80424, Taiwan; (B.-L.C.); (P.-C.C.)
| | - Yaw-Bin Huang
- School of Pharmacy, Kaohsiung Medical University, Kaohsiung 80708, Taiwan;
| | - Chung-Jung Liu
- Regenerative Medicine and Cell Therapy Research Center, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; (C.-J.L.); (D.-C.W.)
- Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan;
| | - Deng-Chyang Wu
- Regenerative Medicine and Cell Therapy Research Center, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; (C.-J.L.); (D.-C.W.)
- Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan;
| | - Meng-Chieh Wu
- Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan;
- Department of Internal Medicine, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung 80145, Taiwan
| | - Bin Huang
- Department of Biological Sciences, National Sun Yat-sen University, Kaohsiung 80424, Taiwan; (B.-L.C.); (P.-C.C.)
- Regenerative Medicine and Cell Therapy Research Center, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; (C.-J.L.); (D.-C.W.)
- Department of Biomedical Science and Environmental Biology, College of Life Science, Kaohsiung Medical University, Kaohsiung 80708, Taiwan
- Department of Medical Research, Kaohsiung Medical University Hospital, Kaohsiung 80708, Taiwan
| | - Ming-Wei Lin
- Department of Medical Research, E-Da Hospital and E-Da Cancer Hospital, I-Shou University, Kaohsiung 82445, Taiwan;
- Regenerative Medicine and Cell Therapy Research Center, Kaohsiung Medical University, Kaohsiung 80708, Taiwan; (C.-J.L.); (D.-C.W.)
- Department of Nursing, College of Medicine, I-Shou University, Kaohsiung 82445, Taiwan
| |
Collapse
|
3
|
Hung SY, Chen JL, Tu YK, Tsai HY, Lu PH, Jou IM, Mbuyisa L, Lin MW. Isoliquiritigenin inhibits apoptosis and ameliorates oxidative stress in rheumatoid arthritis chondrocytes through the Nrf2/HO-1-mediated pathway. Biomed Pharmacother 2024; 170:116006. [PMID: 38091640 DOI: 10.1016/j.biopha.2023.116006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/14/2023] [Revised: 12/03/2023] [Accepted: 12/06/2023] [Indexed: 01/10/2024] Open
Abstract
Rheumatoid arthritis (RA) is a chronic inflammatory condition known for its irreversible destructive impact on the joints. Chondrocytes play a pivotal role in the production and maintenance of the cartilage matrix. However, the presence of inflammatory cytokines can hinder chondrocyte proliferation and promote apoptosis. Isoliquiritigenin (ISL), a flavonoid, potentially exerts protective effects against various inflammatory diseases. However, its specific role in regulating the nuclear factor E2-associated factor 2 (Nrf2)/heme oxygenase-1 (HO-1) pathway in chondrocytes in RA remains unclear. To investigate this, this study used human chondrocytes and Sprague-Dawley rats to construct in vitro and in vivo RA models, respectively. The study findings reveal that cytokines markedly induced oxidative stress, the activation of matrix metalloproteinases, and apoptosis both in vitro and in vivo. Notably, ISL treatment significantly mitigated these effects. Moreover, Nrf2 or HO-1 inhibitors reversed the protective effects of ISL, attenuated the expression of Nrf2/HO-1 and peroxisome proliferator-activated receptor gamma-coactivator-1α, and promoted chondrocyte apoptosis. This finding indicates that ISL primarily targets the Nrf2/HO-1 pathway in RA chondrocytes. Moreover, ISL treatment led to improved behavior scores, reduced paw thickness, and mitigated joint damage as well as ameliorated oxidative stress in skeletal muscles in an RA rat model. In conclusion, this study highlights the pivotal role of the Nrf2/HO-1 pathway in the protective effects of ISL and demonstrates the potential of ISL as a treatment option for RA.
Collapse
Affiliation(s)
- Shih-Ya Hung
- Graduate Institute of Acupuncture Science, China Medical University, Taichung 40402, Taiwan; Division of Surgery, Department of Medical Research, China Medical University Hospital, Taichung 40447, Taiwan
| | - Jen-Lung Chen
- Department of Surgery, E-Da Hospital, Kaohsiung 82445, Taiwan
| | - Yuan-Kun Tu
- Department of Orthopaedic Surgery, E-Da Hospital, I-Shou University, Kaohsiung, Taiwan; School of Medicine, College of Medicine, I-Shou University, Kaohsiung, Taiwan
| | - Hsin-Yi Tsai
- Department of Medical Research, E-Da Hospital/ E-Da Cancer Hospital, Kaohsiung 82445, Taiwan
| | - Pin-Hsuan Lu
- Department of Medical Research, E-Da Hospital/ E-Da Cancer Hospital, Kaohsiung 82445, Taiwan
| | - I-Ming Jou
- Department of Orthopaedic Surgery, E-Da Hospital, I-Shou University, Kaohsiung, Taiwan
| | - Lulekiwe Mbuyisa
- School of Medicine for International Students, College of Medicine, I-Shou University, Kaohsiung 82445, Taiwan
| | - Ming-Wei Lin
- Department of Medical Research, E-Da Hospital/ E-Da Cancer Hospital, Kaohsiung 82445, Taiwan; Department of Nursing, College of Medicine, I-Shou University, Kaohsiung 82445, Taiwan; Regenerative Medicine and Cell Therapy Research Center, Kaohsiung Medical University, Kaohsiung 80708, Taiwan.
| |
Collapse
|
4
|
Cheng YW, Wu CT, Chang CJ, Yeh YH, Chang GJ, Tsai HY, Hsu LA. A Novel KCNH2 S981fs Mutation Identified by Whole-Exome Sequencing Is Associated with Type 2 Long QT Syndrome. Int J Mol Sci 2023; 24:12742. [PMID: 37628921 PMCID: PMC10454316 DOI: 10.3390/ijms241612742] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/12/2023] [Revised: 08/11/2023] [Accepted: 08/12/2023] [Indexed: 08/27/2023] Open
Abstract
KCNH2 loss-of-function mutations cause long QT syndrome type 2 (LQT2), an inherited cardiac disorder associated with life-threatening ventricular arrhythmia. Through whole-exome sequencing, we discovered a novel AGCGACAC deletion (S981fs) in the hERG gene of an LQT2 patient. Using a heterologous expression system and patch clamping, we found that the mutant K channel had reduced cell surface expression and lower current amplitude compared to the wild type. However, functional expression was restored by lowering temperature and using potassium channel inhibitors or openers (E4031, cisapride, nicorandil). Co-immunoprecipitation experiments confirmed the assembly of mutant proteins with wild-type hERG. Confocal imaging showed decreased hERG distribution on the cell membrane in cells expressing S981fs. Notably, treatment with G418 significantly increased hERG current in wild-type/S981fs heterozygotes. In conclusion, our study identifies a novel hERG mutation leading to impaired Kv11.1 function due to trafficking and nonsense-mediated RNA decay defects. These findings shed light on the mechanisms underlying LQT2 and offer potential therapeutic avenues.
Collapse
Affiliation(s)
- Yu-Wen Cheng
- Cardiovascular Division, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Tao-Yuan 33305, Taiwan; (Y.-W.C.); (C.-T.W.); (C.-J.C.); (Y.-H.Y.); (H.-Y.T.)
| | - Chia-Tung Wu
- Cardiovascular Division, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Tao-Yuan 33305, Taiwan; (Y.-W.C.); (C.-T.W.); (C.-J.C.); (Y.-H.Y.); (H.-Y.T.)
| | - Chi-Jen Chang
- Cardiovascular Division, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Tao-Yuan 33305, Taiwan; (Y.-W.C.); (C.-T.W.); (C.-J.C.); (Y.-H.Y.); (H.-Y.T.)
| | - Yung-Hsin Yeh
- Cardiovascular Division, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Tao-Yuan 33305, Taiwan; (Y.-W.C.); (C.-T.W.); (C.-J.C.); (Y.-H.Y.); (H.-Y.T.)
| | - Gwo-Jyh Chang
- Graduate Institute of Clinical Medical Sciences, Chang Gung University, Tao-Yuan 33305, Taiwan;
| | - Hsin-Yi Tsai
- Cardiovascular Division, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Tao-Yuan 33305, Taiwan; (Y.-W.C.); (C.-T.W.); (C.-J.C.); (Y.-H.Y.); (H.-Y.T.)
| | - Lung-An Hsu
- Cardiovascular Division, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Tao-Yuan 33305, Taiwan; (Y.-W.C.); (C.-T.W.); (C.-J.C.); (Y.-H.Y.); (H.-Y.T.)
| |
Collapse
|
5
|
Wang YT, Tsai YT, Hsu CM, Tsai MS, Tsai HY, Chang GH. Nasal Patency in Sitting, Supine, and Prone Positions in Individuals with and without Allergic Rhinitis. Life (Basel) 2023; 13:life13051226. [PMID: 37240871 DOI: 10.3390/life13051226] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Revised: 03/27/2023] [Accepted: 03/31/2023] [Indexed: 05/28/2023] Open
Abstract
(1) Background: Physiological changes in nasal patency in response to posture contribute to sleep-related problems. Previously, we reported that the supine and prone positions cause a significant decrease in nasal patency in subjective and objective assessments of healthy individuals. Therefore, we conducted a study to evaluate the effect of posture on nasal patency in patients with allergic rhinitis (AR); (2) Methods: The present study comprised 30 patients diagnosed with AR and 30 healthy subjects without nasal disease (non-AR). Changes in nasal patency were evaluated in the sitting, supine, and prone positions. We used the visual analog scale to evaluate subjective nasal blockage. Acoustic rhinometry and endoscopy were used to objectively measure changes in nasal patency; (3) Results: In the non-AR group, the prone position had a significant effect on subjective nasal blockage compared with the sitting position, with significant decreases in the minimal cross-sectional area (mCSA) measured by acoustic rhinometry. Furthermore, endoscopy demonstrated a significantly increased inferior turbinate hypertrophy in the non-AR group. In the AR group, there was no statistical difference in subjective nasal blockage symptoms between the different positions. However, in objective examinations (acoustic rhinometry and endoscopy), the prone position showed significantly decreased nasal patency; (4) Conclusions: In patients with AR, subjective nasal blockage did not significantly increase in the supine or prone position. Endoscopy demonstrated increased inferior turbinate hypertrophy in supine and prone positions resulting in a significant reduction in nasal cavity mCSA, indicating an objective reduction in nasal patency.
Collapse
Affiliation(s)
- Yun-Ting Wang
- Department of Otolaryngology-Head and Neck Surgery, Chang Gung Memorial Hospital, Chiayi 613, Taiwan
| | - Yao-Te Tsai
- Department of Otolaryngology-Head and Neck Surgery, Chang Gung Memorial Hospital, Chiayi 613, Taiwan
- Faculty of Medicine, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan
| | - Cheng-Ming Hsu
- Department of Otolaryngology-Head and Neck Surgery, Chang Gung Memorial Hospital, Chiayi 613, Taiwan
- Faculty of Medicine, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan
- Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan
| | - Ming-Shao Tsai
- Department of Otolaryngology-Head and Neck Surgery, Chang Gung Memorial Hospital, Chiayi 613, Taiwan
- Faculty of Medicine, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan
- Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan
| | - Hsin-Yi Tsai
- Department of Otolaryngology-Head and Neck Surgery, Chang Gung Memorial Hospital, Chiayi 613, Taiwan
| | - Geng-He Chang
- Department of Otolaryngology-Head and Neck Surgery, Chang Gung Memorial Hospital, Chiayi 613, Taiwan
- Faculty of Medicine, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan
- Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan 333, Taiwan
- Head and Neck Infection Treatment Center, Chang Gung Memorial Hospital, Chiayi 613, Taiwan
| |
Collapse
|
6
|
Tsai HY, Lin YH, Huang KC, Yang CC, Chou CH, Chao LC. Reduction of Viral and Bacterial Activity by Using a Self-Powered Variable-Frequency Electrical Stimulation Device. Micromachines (Basel) 2023; 14:282. [PMID: 36837982 PMCID: PMC9965244 DOI: 10.3390/mi14020282] [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: 11/01/2022] [Revised: 01/18/2023] [Accepted: 01/19/2023] [Indexed: 06/18/2023]
Abstract
Viruses and bacteria, which can rapidly spread through droplets and saliva, can have serious effects on people's health. Viral activity is traditionally inhibited using chemical substances, such as alcohol or bleach, or physical methods, such as thermal energy or ultraviolet-light irradiation. However, such methods cannot be used in many applications because they have certain disadvantages, such as causing eye or skin injuries. Therefore, in the present study, the electrical stimulation method is used to stimulate a virus, namely, coronavirus 229E, and two types of bacteria, namely, Escherichia coli and Staphylococcus aureus, to efficiently reduce their infectivity of healthy cells (such as the Vero E6 cell in a viral activity-inhibition experiment). The infectivity effects of the aforementioned virus and bacteria were examined under varying values of different electrical stimulation parameters, such as the stimulation current, frequency, and total stimulation time. The experimental results indicate that the activity of coronavirus 229E is considerably inhibited through direct-current pulse stimulation with a current of 25 mA and a frequency of 2 or 20 Hz. In addition, E. coli activity was reduced by nearly 80% in 10 s through alternating-current pulse stimulation with a current of 50 mA and a frequency of 25 Hz. Moreover, a self-powered electrical stimulation device was constructed in this study. This device consists of a solar panel and battery to generate small currents with variable frequencies, which has advantages of self-powered and variable frequencies, and the device can be utilized on desks, chairs, or elevator buttons for the inhibition of viral and bacterial activities.
Collapse
|
7
|
Tsai HY, Chen HW, Hsu BCY, Chen MY. Place image, quality of life, and behavioral intention of residents during the Dajia Mazu Pilgrimage in Taiwan. Managing Sport and Leisure 2022. [DOI: 10.1080/23750472.2022.2134184] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/31/2022]
Affiliation(s)
- Hsin-Yi Tsai
- Department of Physical Education and Sport Sciences, National Taiwan Normal University, Taipei, Taiwan
| | - Hsin-Wei Chen
- Graduate Institute of Sport, Leisure and Hospitality Management, National Taiwan Normal University, Taipei, Taiwan
| | - Bryan Cheng-Yu Hsu
- Educational & Student Affairs Division, Wude Primary School, Penghu County, Taiwan
| | - Mei-Yen Chen
- Graduate Institute of Sport, Leisure and Hospitality Management, National Taiwan Normal University, Taipei, Taiwan
| |
Collapse
|
8
|
Iha K, Tsurusawa N, Tsai HY, Lin MW, Sonoda H, Watabe S, Yoshimura T, Ito E. Ultrasensitive ELISA detection of proteins in separated lumen and membrane fractions of cancer cell exosomes. Anal Biochem 2022; 654:114831. [DOI: 10.1016/j.ab.2022.114831] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/03/2022] [Revised: 06/29/2022] [Accepted: 07/21/2022] [Indexed: 12/31/2022]
|
9
|
Tsai HY, Huang YW, Chang SY, Huang LY, Lin CJ, Lee PC. The reimbursement coverage decisions and pricing rules for medical devices in Taiwan. GMS Health Innov Technol 2022; 16:Doc02. [PMID: 35360087 PMCID: PMC8953662 DOI: 10.3205/hta000134] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
Medical technology is undergoing rapid transformations, and the classifications of medical devices have also expanded greatly; therefore, it is necessary to develop appropriate reimbursement policies and pricing mechanisms in a timely manner. This paper aims to introduce the reimbursement coverage and pricing rules for medical devices in Taiwan. In addition, this paper identifies and evaluates available health technology assessments (HTA) and literature on published websites concerning medical device decision-making processes and pricing systems in South Korea and Japan, which are near Taiwan and have similar reimbursement coverage processes. Reimbursement policy and pricing mechanisms are constantly being revised in Taiwan, Japan, and South Korea. Recently, all three countries attempted to establish new reimbursement coverage decision-making and pricing rules, adopting a differentiated approach based on the level of evidence required for the appropriated reimbursement in terms of a feasible evaluation mechanism for providing patients with more effective medical devices. This article is expected to contribute to providing references to new reimbursement coverage decision-making and pricing rules.
Collapse
Affiliation(s)
- Hsin-Yi Tsai
- Division of Health Technology Assessment, Center for Drug Evaluation, Taipei, Taiwan
| | - Yu-Wen Huang
- National Health Insurance Administration, Ministry of Health and Welfare, Taipei, Taiwan
| | - Shu-Ya Chang
- National Health Insurance Administration, Ministry of Health and Welfare, Taipei, Taiwan
| | - Li-Ying Huang
- Division of Health Technology Assessment, Center for Drug Evaluation, Taipei, Taiwan,*To whom correspondence should be addressed: Po-Chang Lee, , E-mail:
| | - Chii Jeng Lin
- College of Medicine, National Cheng Kung University, Tainan, Taiwan,Medical Devices Reimbursement Committee of Taiwan, Tainan, Taiwan,*To whom correspondence should be addressed: Po-Chang Lee, , E-mail:
| | - Po-Chang Lee
- National Health Insurance Administration, Ministry of Health and Welfare, Taipei, Taiwan,Departement of Surgery, College of Medicine, National Cheng Kung University, Tainain, Taiwan,*To whom correspondence should be addressed: Po-Chang Lee, , E-mail:
| |
Collapse
|
10
|
Chang GH, Hsu CM, Huang EI, Tsai HY, Wang YT, Tsai MS, Chang PJ, Tsai YT. Effects of Supine and Prone Positions on Nasal Patency in Healthy Individuals. Ear Nose Throat J 2021:1455613211015437. [PMID: 33970694 DOI: 10.1177/01455613211015437] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
OBJECTIVES Supine position reduces nasal patency compared with that in the sitting position; however, data on the effects of prone position on nasal patency is lacking. METHODS We assessed the nasal patency of 30 healthy individuals without upper respiratory tract disorders by using visual analog scale (VAS) score and acoustic rhinometry in 7 positions: sitting; frontal, right, and left supine; and frontal, right, and left prone. RESULTS According to the VAS scores, compared with that in the sitting position, both the supine and prone positions significantly increased subjective nasal obstruction (P < .001). The prone position had a more significant effect than did the supine position (P = .017). The results of minimal cross-sectional area measured through acoustic rhinometry demonstrated that both the supine and prone positions reduced the nasal patency significantly, but without significant differences between the effects of prone and supine positions (P = .794). CONCLUSION This is the first study to elucidate that the prone position can significantly reduce the nasal patency in healthy individuals through subjective and objective assessments. LEVEL OF EVIDENCE IV.
Collapse
Affiliation(s)
- Geng-He Chang
- Department of Otolaryngology-Head and Neck Surgery, 125573Chang Gung Memorial Hospital, Chiayi.,Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan.,Faculty of Medicine, College of Medicine, Chang Gung University, Taoyuan
| | - Cheng-Ming Hsu
- Department of Otolaryngology-Head and Neck Surgery, 125573Chang Gung Memorial Hospital, Chiayi.,Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan.,Faculty of Medicine, College of Medicine, Chang Gung University, Taoyuan
| | - Ethan I Huang
- Department of Otolaryngology-Head and Neck Surgery, 125573Chang Gung Memorial Hospital, Chiayi
| | - Hsin-Yi Tsai
- Department of Otolaryngology-Head and Neck Surgery, 125573Chang Gung Memorial Hospital, Chiayi
| | - Yun-Ting Wang
- Department of Otolaryngology-Head and Neck Surgery, 125573Chang Gung Memorial Hospital, Chiayi
| | - Ming-Shao Tsai
- Department of Otolaryngology-Head and Neck Surgery, 125573Chang Gung Memorial Hospital, Chiayi.,Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan.,Faculty of Medicine, College of Medicine, Chang Gung University, Taoyuan
| | - Pey-Jium Chang
- Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan
| | - Yao-Te Tsai
- Department of Otolaryngology-Head and Neck Surgery, 125573Chang Gung Memorial Hospital, Chiayi.,Graduate Institute of Clinical Medical Sciences, College of Medicine, Chang Gung University, Taoyuan.,Faculty of Medicine, College of Medicine, Chang Gung University, Taoyuan
| |
Collapse
|
11
|
Tsai HY, Hsu CN, Li CR, Lin YH, Hsiao WT, Huang KC, Yeh JA. Surface Wettability and Electrical Resistance Analysis of Droplets on Indium-Tin-Oxide Glass Fabricated Using an Ultraviolet Laser System. Micromachines (Basel) 2021; 12:mi12010044. [PMID: 33401451 PMCID: PMC7824366 DOI: 10.3390/mi12010044] [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] [Subscribe] [Scholar Register] [Received: 12/01/2020] [Revised: 12/22/2020] [Accepted: 12/24/2020] [Indexed: 12/22/2022]
Abstract
Indium tin oxide (ITO) is widely used as a substrate for fabricating chips because of its optical transparency, favorable chemical stability, and high electrical conductivity. However, the wettability of ITO surface is neutral (the contact angle was approximately 90°) or hydrophilic. For reagent transporting and manipulation in biochip application, the surface wettability of ITO-based chips was modified to the hydrophobic or nearly hydrophobic surface to enable their use with droplets. Due to the above demand, this study used a 355-nm ultraviolet laser to fabricate a comb microstructure on ITO glass to modify the surface wettability characteristics. All of the fabrication patterns with various line width and pitch, depth, and surface roughness were employed. Subsequently, the contact angle (CA) of droplets on the ITO glass was analyzed to examine wettability and electrical performance by using the different voltages applied to the electrode. The proposed approach can succeed in the fabrication of a biochip with suitable comb-microstructure by using the optimal operating voltage and time functions for the catch droplets on ITO glass for precision medicine application. The experiment results indicated that the CA of droplets under a volume of 20 μL on flat ITO substrate was approximately 92° ± 2°; furthermore, due to its lowest surface roughness, the pattern line width and pitch of 110 μm exhibited a smaller CA variation and more favorable spherical droplet morphology, with a side and front view CA of 83° ± 1° and 78.5° ± 2.5°, respectively, while a laser scanning speed of 750 mm/s was employed. Other line width and pitch, as well as scanning speed parameters, increased the surface roughness and resulted in the surface becoming hydrophilic. In addition, to prevent droplet morphology collapse, the droplet’s electric operation voltage and driving time did not exceed 5 V and 20 s, respectively. With this method, the surface modification process can be employed to control the droplet’s CA by adjusting the line width and pitch and the laser scanning speed, especially in the neutral or nearly hydrophobic surface for droplet transporting. This enables the production of a microfluidic chip with a surface that is both light transmittance and has favorable electrical conductivity. In addition, the shape of the microfluidic chip can be directly designed and fabricated using a laser direct writing system on ITO glass, obviating the use of a mask and complicated production processes in biosensing and biomanipulation applications.
Collapse
Affiliation(s)
- Hsin-Yi Tsai
- Taiwan Instrument Research Institute, National Applied Research Laboratories, Hsinchu 300092, Taiwan; (H.-Y.T.); (C.-N.H.); (C.-R.L.); (Y.-H.L.); (W.-T.H.)
- Department of Power Mechanical Engineering, National Tsing Hua University, Hsinchu 300092, Taiwan;
| | - Chih-Ning Hsu
- Taiwan Instrument Research Institute, National Applied Research Laboratories, Hsinchu 300092, Taiwan; (H.-Y.T.); (C.-N.H.); (C.-R.L.); (Y.-H.L.); (W.-T.H.)
| | - Cheng-Ru Li
- Taiwan Instrument Research Institute, National Applied Research Laboratories, Hsinchu 300092, Taiwan; (H.-Y.T.); (C.-N.H.); (C.-R.L.); (Y.-H.L.); (W.-T.H.)
| | - Yu-Hsuan Lin
- Taiwan Instrument Research Institute, National Applied Research Laboratories, Hsinchu 300092, Taiwan; (H.-Y.T.); (C.-N.H.); (C.-R.L.); (Y.-H.L.); (W.-T.H.)
| | - Wen-Tse Hsiao
- Taiwan Instrument Research Institute, National Applied Research Laboratories, Hsinchu 300092, Taiwan; (H.-Y.T.); (C.-N.H.); (C.-R.L.); (Y.-H.L.); (W.-T.H.)
| | - Kuo-Cheng Huang
- Taiwan Instrument Research Institute, National Applied Research Laboratories, Hsinchu 300092, Taiwan; (H.-Y.T.); (C.-N.H.); (C.-R.L.); (Y.-H.L.); (W.-T.H.)
- Correspondence: ; Tel.: +886-3577-9911
| | - J. Andrew Yeh
- Department of Power Mechanical Engineering, National Tsing Hua University, Hsinchu 300092, Taiwan;
| |
Collapse
|
12
|
Hsu CY, Chen WJ, Chen HM, Tsai HY, Hsiao FY. Impact of changing reimbursement criteria on statin treatment patterns among patients with atherosclerotic cardiovascular disease or cardiovascular risk factors. J Clin Pharm Ther 2020; 46:415-423. [PMID: 33180353 DOI: 10.1111/jcpt.13299] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/15/2020] [Revised: 08/25/2020] [Accepted: 10/01/2020] [Indexed: 01/03/2023]
Abstract
WHAT IS KNOWN AND OBJECTIVE Starting 1 August 2013, the eligible cholesterol level for statin reimbursement in patients with atherosclerotic cardiovascular disease (ASCVD) or cardiovascular disease (CVD)-related risk factors changed from LDL-C ≥ 130 mg/dl (or TC ≥ 200 mg/dl) to LDL-C ≥ 100 mg/dl (or TC ≥ 160 mg/dl) in Taiwan, which may modify clinician prescribing behaviours. We aimed to evaluate the impact of changing reimbursement criteria on statin treatment patterns. METHODS A before-after cohort design was conducted using Taiwan's National Health Insurance Research Database. Differences in statin treatment patterns between the pre- and postregulation periods were compared. Two prespecified study cohorts were identified to examine the impacts of this change on those who need statins for "secondary prevention" (patients newly diagnosed with ASCVD) and those who need statins for "primary prevention" (patients newly diagnosed with CVD-related risk factors, such as diabetes mellitus [DM]). Treatment patterns measured in this study included initiation, discontinuation, switching, dose increase, dose decrease and dose maximization. RESULTS The proportion of patients who initiated statins during the postregulation period was higher than that of patients who initiated statins during the preregulation period (eg coronary heart disease (CHD) patients, pre- vs. postregulation: 41.23% vs. 48.25%). Notably, only 30%-40% of patients initiated statin use in the postregulation period across different conditions. In addition, the proportion of patients who discontinued statins remained very high. Even in the postregulation period, more than half of CHD patients discontinued statins during the 1-year follow-up period (eg CHD patients, pre- vs. postregulation: 59.07% vs. 52.75%). WHAT IS NEW AND CONCLUSION The new reimbursement criteria started on 1 August 2013 seemed to lower the barriers of access to the first statin prescription among patients with CHD, cerebrovascular disease (CBVD) and DM. Nevertheless, the proportion of patients who initiated statin use was suboptimal, and the proportion of patients who discontinued statins was very high in the postregulation period.
Collapse
Affiliation(s)
- Chia-Yun Hsu
- Health Data Research Center, National Taiwan University, Taipei, Taiwan
| | - Wen-Jone Chen
- Division of Cardiology, Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Ho-Ming Chen
- Health Data Research Center, National Taiwan University, Taipei, Taiwan
| | - Hsin-Yi Tsai
- Value, Access and Policy, Amgen Taiwan Limited, Taipei, Taiwan
| | - Fei-Yuan Hsiao
- Graduate Institute of Clinical Pharmacy, College of Medicine, National Taiwan University, Taipei, Taiwan.,School of Pharmacy, National Taiwan University, Taipei, Taiwan.,Department of Pharmacy, National Taiwan University Hospital, Taipei, Taiwan
| |
Collapse
|
13
|
Lee HY, Chen HL, Teoh JYC, Chen TC, Hao SY, Tsai HY, Huang WH, Juan YS, Cheng HM, Chang HM. Abiraterone and enzalutamide had different adverse effects on the cardiovascular system: a systematic review with pairwise and network meta-analyses. Prostate Cancer Prostatic Dis 2020; 24:244-252. [PMID: 32860011 DOI: 10.1038/s41391-020-00275-3] [Citation(s) in RCA: 15] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/13/2020] [Revised: 08/13/2020] [Accepted: 08/19/2020] [Indexed: 12/24/2022]
Abstract
BACKGROUND Abiraterone and enzalutamide may increase the risk of cardiovascular events in patients with castration-resistant prostate cancer (CRPC). METHODS A comprehensive literature search was performed using a combination of keywords related to "abiraterone," "enzalutamide," "prostate cancer," and "adverse events." Phase II-IV randomized controlled trials (RCTs) on abiraterone or enzalutamide for patients with nonmetastatic or metastatic CRPC were included. Outcome measures included (1) any grade cardiac disorder, (2) severe grade cardiac disorder, (3) any grade hypertension, and (4) severe grade hypertension, as defined by the Common Terminology Criteria for Adverse Events. Pairwise meta-analysis and Bayesian network meta-analyses were performed to investigate the risk ratios (RRs) of abiraterone and enzalutamide. Surface under cumulative ranking curves (SUCRAs) and cumulative ranking probability plots based on the probability of developing cardiac disorders or hypertension were presented. RESULTS A total of 7103 patients from seven RCTs were included. Upon pairwise meta-analysis, abiraterone was associated with increased risks of any grade (RR = 1.34, 95% confidence interval (CI) = 1.05-1.73) and severe grade cardiac disorders (RR = 1.71, 95% CI = 1.16-2.53); enzalutamide was associated with increased risks of any grade (RR = 2.66, 95% CI = 1.93-3.66) and severe grade hypertension (RR = 2.79, 95% CI = 1.86-4.18). Based on the SUCRA rankings, abiraterone had a higher probability of cardiac disorders (84.84% for any grade and 85.12% for severe grade) than enzalutamide (62.83% for any grade and 50.76% for severe grade); whereas enzalutamide had a higher probability of hypertension (99.43% for any grade and 89.71% for severe grade) than abiraterone (49.08% for any grade and 49.37% for severe grade). CONCLUSIONS Abiraterone and enzalutamide had different adverse effects on the cardiovascular system. We should take this into consideration when we are deciding on the choice of novel hormonal agents for patients with CRPC.
Collapse
Affiliation(s)
- Hsiang Ying Lee
- Department of Urology, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung, Taiwan.,Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan.,Department of Urology, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Hsiao-Ling Chen
- Department of Pharmacy, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung, Taiwan
| | - Jeremy Yuen-Chun Teoh
- S.H. Ho Urology Centre, Prince of Wales Hospital, The Chinese University of Hong Kong, Hong Kong, China
| | - Tun-Chieh Chen
- Division of Infectious Diseases, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung, Taiwan
| | - Shao-Yuan Hao
- Department of Pharmacy, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung, Taiwan
| | - Hsin-Yi Tsai
- Department of Pharmacy, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung, Taiwan
| | - Wei-Hsuan Huang
- Department of Pharmacy, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung, Taiwan
| | - Yung-Shun Juan
- Department of Urology, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung, Taiwan.,Department of Urology, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Hao-Min Cheng
- Center for Evidence-based Medicine, Taipei Veterans General Hospital, Taipei, Taiwan. .,Institute of Public Health, National Yang-Ming University Hospital, Taipei, Taiwan. .,Department of Medicine, National Yang-Ming University, Taipei, Taiwan.
| | - Hsiu-Mei Chang
- Department of Pharmacy, Kaohsiung Municipal Ta-Tung Hospital, Kaohsiung, Taiwan.
| |
Collapse
|
14
|
Tsai HY, Wu HH, Chou BC, Li CS, Gau BZ, Lin ZY, Fuh CB. A magneto-microfluidic platform for fluorescence immunosensing using quantum dot nanoparticles. Nanotechnology 2019; 30:505101. [PMID: 31557130 DOI: 10.1088/1361-6528/ab423d] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
This study reports the online fluorescent detection of carcinoembryonic antigen (CEA) and α-fetoprotein (AFP) biomarker proteins in microfluidic channels using functional nanoparticles. Functional magnetic nanoparticles labeled with two antibodies were predeposited on separated microfluidic channels. Antigens were passed through each microfluidic channel to react with the respective antibodies. Two types of fluorescent nanoparticles labeled with antibodies were then used to detect and confirm antigens in the immunocomplex. Results indicate that online fluorescent detection of proteins can provide advantages for real-time monitoring and diagnostic applications. The running time was less than 20 min for each trial. The detection limits of CEA and AFP were found to be 0.6 and 0.2 pg ml-1. These detection limits are lower than those of ELISA. The linear ranges of CEA and AFP detection were from 1.8 pg ml-1 to 1.8 ng ml-1 and from 0.68 pg ml-1 to 0.68 ng ml-1 for two deposition zones in a magnetic sandwich immunoassay. The linear ranges of this method are wider than those of ELISA and those of most other methods. The measurements of CEA and AFP in serum samples from this method differed from ELISA results by 11% and 9.4%, respectively. The detection limit of online detection has achieved the same range as those of previous offline detection. This method has a good potential for automation and multichannel analysis to increase the throughput with some modifications in the future. The proposed method can provide simple, fast, and sensitive online detection for biomarkers.
Collapse
Affiliation(s)
- H Y Tsai
- School of Medical Applied Chemistry, Chung Shan Medical University, Taichung 402, Taiwan. Department of Medical Education, Chung Shan Medical University Hospital, Taichung, 402, Taiwan
| | | | | | | | | | | | | |
Collapse
|
15
|
Lin IM, Fan SY, Yen CF, Yeh YC, Tang TC, Huang MF, Liu TL, Wang PW, Lin HC, Tsai HY, Tsai YC. Erratum: Title Correction. Clin Psychopharmacol Neurosci 2019; 17:458. [PMID: 31352716 PMCID: PMC6705100 DOI: 10.9758/cpn.2019.17.3.458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/21/2022]
Affiliation(s)
- I-Mei Lin
- Department of Psychology, College of Humanities and Social Sciences, Kaohsiung Medical University, Taiwan.,Departments of Medical Research Kaohsiung Medical University Hospital, Kaohsiung City, Taiwan
| | - Sheng-Yu Fan
- Institute of Gerontology, College of Medicine, National Cheng Kung University, Tainan City, Taiwan
| | - Cheng-Fang Yen
- Departments of Psychiatry, Kaohsiung Medical University Hospital, Kaohsiung City, Taiwan.,Graduate Institute of Medicine and Department of Psychiatry, School of Medicine, College of Medicine, Kaohsiung Medical University, Taiwan
| | - Yi-Chun Yeh
- Departments of Psychiatry, Kaohsiung Medical University Hospital, Kaohsiung City, Taiwan.,Graduate Institute of Medicine and Department of Psychiatry, School of Medicine, College of Medicine, Kaohsiung Medical University, Taiwan
| | - Tze-Chun Tang
- Departments of Psychiatry, Kaohsiung Medical University Hospital, Kaohsiung City, Taiwan.,Dr. Tang's Psychiatric Clinic and Mind Center, Kaohsiung City, Taiwan
| | - Mei-Feng Huang
- Departments of Psychiatry, Kaohsiung Medical University Hospital, Kaohsiung City, Taiwan.,Graduate Institute of Medicine and Department of Psychiatry, School of Medicine, College of Medicine, Kaohsiung Medical University, Taiwan
| | - Tai-Ling Liu
- Departments of Psychiatry, Kaohsiung Medical University Hospital, Kaohsiung City, Taiwan.,Graduate Institute of Medicine and Department of Psychiatry, School of Medicine, College of Medicine, Kaohsiung Medical University, Taiwan
| | - Peng-Wei Wang
- Departments of Psychiatry, Kaohsiung Medical University Hospital, Kaohsiung City, Taiwan.,Graduate Institute of Medicine and Department of Psychiatry, School of Medicine, College of Medicine, Kaohsiung Medical University, Taiwan
| | - Huang-Chi Lin
- Departments of Psychiatry, Kaohsiung Medical University Hospital, Kaohsiung City, Taiwan.,Graduate Institute of Medicine and Department of Psychiatry, School of Medicine, College of Medicine, Kaohsiung Medical University, Taiwan
| | - Hsin-Yi Tsai
- Department of Psychology, College of Humanities and Social Sciences, Kaohsiung Medical University, Taiwan.,Departments of Psychiatry, Kaohsiung Medical University Hospital, Kaohsiung City, Taiwan
| | - Yu-Che Tsai
- Department of Psychology, College of Humanities and Social Sciences, Kaohsiung Medical University, Taiwan
| |
Collapse
|
16
|
Lin IM, Fan SY, Yen CF, Yeh YC, Tang TC, Huang MF, Liu TL, Wang PW, Lin HC, Tsai HY, Tsai YC. Heart Rate Variability Biofeedback Increased Autonomic Activation and Improved Symptoms of Depression and Insomnia among Patients with Major Depression Disorder. Clin Psychopharmacol Neurosci 2019; 17:222-232. [PMID: 30905122 PMCID: PMC6478078 DOI: 10.9758/cpn.2019.17.2.222] [Citation(s) in RCA: 48] [Impact Index Per Article: 9.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/11/2018] [Revised: 06/03/2018] [Accepted: 06/15/2018] [Indexed: 01/08/2023]
Abstract
Objective Autonomic imbalance is considered a psychopathological mechanism underlying major depressive disorder (MDD). Heart rate variability (HRV) is an index for autonomic activation. Poor sleep quality is common among patients with MDD. HRV biofeedback (BF) has been used for regulating autonomic balance among patients with physical illness and mental disorders. The purpose of present study was to examine the effects of HRV-BF on depressive symptoms, sleep quality, pre-sleep arousal, and HRV indices, in patients with MDD and insomnia. Methods In this case-controlled study, patients with MDD and Pittsburgh Sleep Quality Index (PSQI) score higher than 6 were recruited. The HRV-BF group received weekly 60-minute protocol for 6 weeks, and the control group who have matched the age and sex received medical care only. All participants were assessed on Beck Depression Inventory-II, Back Anxiety Inventory, PSQI, and Pre-Sleep Arousal Scale. Breathing rates and electrocardiography were also performed under resting state at pre-testing, and post-testing conditions and for the HRV-BF group, also at 1-month follow-up. Results In the HRV-BF group, symptoms of depression and anxiety, sleep quality, and pre-sleep arousal were significantly improved, and increased HRV indices, compared with the control group. Moreover, in the HRV-BF group, significantly improved symptoms of depression and anxiety, decreased breathing rates, and increased HRV indices were detected at post-testing and at 1-month follow-up, compared with pre-testing values. Conclusion This study confirmed that HRV-BF is a useful psychosocial intervention for improving autonomic balance, baroreflex, and symptoms of depression and insomnia in MDD patients.
Collapse
Affiliation(s)
- I-Mei Lin
- Department of Psychology, College of Humanities and Social Sciences, Kaohsiung Medical University.,Departments of Medical Research Kaohsiung Medical University Hospital
| | - Sheng-Yu Fan
- 3Institute of Gerontology, College of Medicine, National Cheng Kung University
| | - Cheng-Fang Yen
- Departments of Psychiatry, Kaohsiung Medical University Hospital.,Graduate Institute of Medicine and Department of Psychiatry, School of Medicine, College of Medicine, Kaohsiung Medical University
| | - Yi-Chun Yeh
- Departments of Psychiatry, Kaohsiung Medical University Hospital.,Graduate Institute of Medicine and Department of Psychiatry, School of Medicine, College of Medicine, Kaohsiung Medical University
| | - Tze-Chun Tang
- Departments of Psychiatry, Kaohsiung Medical University Hospital.,Dr. Tang's Psychiatric Clinic and Mind Center
| | - Mei-Feng Huang
- Departments of Psychiatry, Kaohsiung Medical University Hospital.,Graduate Institute of Medicine and Department of Psychiatry, School of Medicine, College of Medicine, Kaohsiung Medical University
| | - Tai-Ling Liu
- Departments of Psychiatry, Kaohsiung Medical University Hospital.,Graduate Institute of Medicine and Department of Psychiatry, School of Medicine, College of Medicine, Kaohsiung Medical University
| | - Peng-Wei Wang
- Departments of Psychiatry, Kaohsiung Medical University Hospital.,Graduate Institute of Medicine and Department of Psychiatry, School of Medicine, College of Medicine, Kaohsiung Medical University
| | - Huang-Chi Lin
- Departments of Psychiatry, Kaohsiung Medical University Hospital.,Graduate Institute of Medicine and Department of Psychiatry, School of Medicine, College of Medicine, Kaohsiung Medical University
| | - Hsin-Yi Tsai
- Department of Psychology, College of Humanities and Social Sciences, Kaohsiung Medical University.,Departments of Psychiatry, Kaohsiung Medical University Hospital
| | - Yu-Che Tsai
- Department of Psychology, College of Humanities and Social Sciences, Kaohsiung Medical University
| |
Collapse
|
17
|
Naresh G, Hsieh PL, Meena V, Lee SK, Chiu YH, Madasu M, Lee AT, Tsai HY, Lai TH, Hsu YJ, Lo YC, Huang MH. Facet-Dependent Photocatalytic Behaviors of ZnS-Decorated Cu 2O Polyhedra Arising from Tunable Interfacial Band Alignment. ACS Appl Mater Interfaces 2019; 11:3582-3589. [PMID: 30592409 DOI: 10.1021/acsami.8b19197] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/28/2023]
Abstract
ZnS particles were grown over Cu2O cubes, octahedra, and rhombic dodecahedra for examination of their facet-dependent photocatalytic behaviors. After ZnS growth, Cu2O cubes stay photocatalytically inactive. ZnS-decorated Cu2O octahedra show enhanced photocatalytic activity, resulting from better charge carrier separation upon photoexcitation. Surprisingly, Cu2O rhombic dodecahedra give greatly suppressed photocatalytic activity after ZnS deposition. Electron paramagnetic resonance spectra agree with these experimental observations. Time-resolved photoluminescence profiles provide charge-transfer insights. The decrease in the photocatalytic activity is attributed to an unfavorable band alignment caused by significant band bending within the Cu2O(110)/ZnS(200) plane interface. A modified Cu2O-ZnS band diagram is presented. Density functional theory calculations generating plane-specific band energy diagrams of Cu2O and ZnS match well with the experimental results, showing that charge transfer across the Cu2O(110)/ZnS(200) plane interface would not happen. This example further illustrates that the actual photocatalysis outcome for semiconductor heterojunctions cannot be assumed because interfacial charge transfer is strongly facet-dependent.
Collapse
Affiliation(s)
| | | | - Vandana Meena
- Department of Chemistry , Indian Institute of Technology Roorkee , Roorkee 247 667 , India
| | - Shih-Kuang Lee
- Department of Materials Science and Engineering , National Chiao Tung University , Hsinchu 30010 , Taiwan
| | - Yi-Hsuan Chiu
- Department of Materials Science and Engineering , National Chiao Tung University , Hsinchu 30010 , Taiwan
| | | | | | | | - Ting-Hsuan Lai
- Department of Materials Science and Engineering , National Chiao Tung University , Hsinchu 30010 , Taiwan
| | - Yung-Jung Hsu
- Department of Materials Science and Engineering , National Chiao Tung University , Hsinchu 30010 , Taiwan
| | - Yu-Chieh Lo
- Department of Materials Science and Engineering , National Chiao Tung University , Hsinchu 30010 , Taiwan
| | | |
Collapse
|
18
|
Affiliation(s)
- Hsin-Yi Tsai
- Department of Chemistry; National Tsing Hua University; Hsinchu 30013 Taiwan
| | - Mahesh Madasu
- Department of Chemistry; National Tsing Hua University; Hsinchu 30013 Taiwan
| | - Michael H. Huang
- Department of Chemistry; National Tsing Hua University; Hsinchu 30013 Taiwan
| |
Collapse
|
19
|
Li CC, Jhang JH, Tsai HY, Huang YP. Water-soluble polyethylenimine as an efficient dispersant for gallium zinc oxide nanopowder in organic-based suspensions. POWDER TECHNOL 2017. [DOI: 10.1016/j.powtec.2016.10.006] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
|
20
|
Hsieh YJ, Chang YC, Huang YH, Chung WH, Tsai HY, Hsu LA. A lack of association between genetic polymorphisms in beta-defensins and susceptibility of psoriasis in Taiwanese: A case–control study. DERMATOL SIN 2016. [DOI: 10.1016/j.dsi.2015.09.002] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
|
21
|
Hsiao FC, Yeh YH, Chen WJ, Chan YH, Kuo CT, Wang CL, Chang CJ, Tsai HY, Tsai FC, Hsu LA. MMP9 Rs3918242 Polymorphism Affects Tachycardia-Induced MMP9 Expression in Cultured Atrial-Derived Myocytes but Is Not a Risk Factor for Atrial Fibrillation among the Taiwanese. Int J Mol Sci 2016; 17:521. [PMID: 27070579 PMCID: PMC4848977 DOI: 10.3390/ijms17040521] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/28/2016] [Revised: 03/23/2016] [Accepted: 03/29/2016] [Indexed: 12/19/2022] Open
Abstract
Matrix metalloproteinase (MMP) plays an important role in the pathogenesis of atrial fibrillation (AF). The MMP9 promoter has a functional polymorphism rs3918242 that can regulate the level of gene transcription. This study recruited 200 AF patients and 240 controls. The MMP9 rs3918242 was examined by polymerase chain reactions. HL-1 atrial myocytes were cultured and electrically stimulated. Right atrial appendages were obtained from six patients with AF and three controls with sinus rhythm undergoing open heart surgery. The MMP9 expression and activity were determined using immunohistochemical analysis and gelatin zymography, respectively. Rapid pacing induces MMP9 secretion from HL-1 myocytes in a time- and dose-dependent manner. The responsiveness of MMP9 transcriptional activity to tachypacing was significantly enhanced by rs3918242. The expression of MMP9 was increased in fibrillating atrial tissue than in sinus rhythm. However, the distribution of rs3918242 genotypes and allele frequencies did not significantly differ between the control and AF groups. HL-1 myocyte may secrete MMP9 in response to rapid pacing, and the secretion could be modulated by rs3918242. Although the MMP9 expression of human atrial myocyte is associated with AF, our study did not support the association of susceptibility to AF among Taiwanese subjects with the MMP9 rs3918242 polymorphism.
Collapse
Affiliation(s)
- Fu-Chih Hsiao
- Cardiovascular Division, Department of Internal Medicine, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, No. 5, Fu-Shin Road, Kwei-Shan, Taoyuan 33305, Taiwan.
| | - Yung-Hsin Yeh
- Cardiovascular Division, Department of Internal Medicine, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, No. 5, Fu-Shin Road, Kwei-Shan, Taoyuan 33305, Taiwan.
| | - Wei-Jan Chen
- Cardiovascular Division, Department of Internal Medicine, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, No. 5, Fu-Shin Road, Kwei-Shan, Taoyuan 33305, Taiwan.
| | - Yi-Hsin Chan
- Cardiovascular Division, Department of Internal Medicine, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, No. 5, Fu-Shin Road, Kwei-Shan, Taoyuan 33305, Taiwan.
| | - Chi-Tai Kuo
- Cardiovascular Division, Department of Internal Medicine, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, No. 5, Fu-Shin Road, Kwei-Shan, Taoyuan 33305, Taiwan.
| | - Chun-Li Wang
- Cardiovascular Division, Department of Internal Medicine, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, No. 5, Fu-Shin Road, Kwei-Shan, Taoyuan 33305, Taiwan.
| | - Chi-Jen Chang
- Cardiovascular Division, Department of Internal Medicine, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, No. 5, Fu-Shin Road, Kwei-Shan, Taoyuan 33305, Taiwan.
| | - Hsin-Yi Tsai
- Cardiovascular Division, Department of Internal Medicine, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, No. 5, Fu-Shin Road, Kwei-Shan, Taoyuan 33305, Taiwan.
| | - Feng-Chun Tsai
- Division of Cardiac Surgery, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taoyuan 33305, Taiwan.
| | - Lung-An Hsu
- Cardiovascular Division, Department of Internal Medicine, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, No. 5, Fu-Shin Road, Kwei-Shan, Taoyuan 33305, Taiwan.
| |
Collapse
|
22
|
|
23
|
Chen YH, Chen YJ, Tseng HC, Lian CJ, Tsai HY, Lai YC, Hsu SCN, Chiang MY, Chen HY. Correction: Comparing l-lactide and ε-caprolactone polymerization by using aluminum complexes bearing ketiminate ligands: steric, electronic, and chelating effects. RSC Adv 2016. [DOI: 10.1039/c6ra90002j] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/21/2022] Open
Abstract
Correction for ‘Comparing l-lactide and ε-caprolactone polymerization by using aluminum complexes bearing ketiminate ligands: steric, electronic, and chelating effects’ by Yu-Hsieh Chen et al., RSC Adv., 2015, 5, 100272–100280.
Collapse
Affiliation(s)
- Yu-Hsieh Chen
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung 80708
- Republic of China
| | - Yen-Jen Chen
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung 80708
- Republic of China
| | - Hsi-Ching Tseng
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung 80708
- Republic of China
| | - Cheng-Jie Lian
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung 80708
- Republic of China
| | - Hsin-Yi Tsai
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung 80708
- Republic of China
| | - Yi-Chun Lai
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung 80708
- Republic of China
| | - Sodio C. N. Hsu
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung 80708
- Republic of China
| | - Michael Y. Chiang
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung 80708
- Republic of China
- Department of Chemistry
| | - Hsuan-Ying Chen
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung 80708
- Republic of China
| |
Collapse
|
24
|
Chang YC, Wu WM, Huang YH, Chung WH, Tsai HY, Hsu LA. The (CCTTT) n pentanucleotide repeat polymorphism in the inducible nitric oxide synthase gene promoter and the risk of psoriasis in Taiwanese. Arch Dermatol Res 2015; 307:425-32. [PMID: 25663087 DOI: 10.1007/s00403-015-1542-6] [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] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2014] [Revised: 01/04/2015] [Accepted: 01/16/2015] [Indexed: 11/30/2022]
Abstract
Recently, genome-wide association studies identified a novel psoriasis susceptibility locus tagged by two single-nucleotide polymorphisms (SNPs) rs4795067 and rs28998802, both of which are in the intronic region of inducible nitric oxide synthase (iNOS) gene. This study aimed to assess the role of (CCTTT) n pentanucleotide repeat polymorphisms in the promoter region of iNOS gene in Chinese-Taiwanese patients with psoriasis. In total, 280 patients with psoriasis and 512 control subjects were analyzed for the presence of the iNOS microsatellite polymorphism by polymerase chain reactions. The alleles were classified as S and L alleles according to the number of (CCTTT) n repeats, with the alleles with ≤13 repeats designated as S and alleles with ≥14 repeats designated as L alleles. The distribution of allele frequencies and genotypes was significantly different between the control and psoriasis groups (P = 0.040, and 0.014, respectively). After adjustment for age, sex, body mass index, smoking, diabetes, and hypertension, carriers of the LL genotype were 0.38 (95% confidence interval 0.16-0.95) times less likely than non-carriers to have psoriasis (P = 0.038). The promoter assays demonstrated that the iNOS promoter activity increases in parallel with the repeat number of (CCTTT) n in HaCaT cells. Approximately 70% of the study subjects were genotyped for rs4795067 and rs28998802. The rs4795067 is in linkage disequilibrium with the microsatellite L/S allelic classification. The association of iNOS microsatellite with psoriasis is independent of these known iNOS variants. Our results suggest that the iNOS microsatellite may contribute to the genetic background of psoriasis in Chinese-Taiwanese patients.
Collapse
Affiliation(s)
- Ya-Ching Chang
- Department of Dermatology, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Taipei, Taiwan
| | | | | | | | | | | |
Collapse
|
25
|
Chen YH, Chen YJ, Tseng HC, Lian CJ, Tsai HY, Lai YC, Hsu SCN, Chiang MY, Chen HY. Comparing l-lactide and ε-caprolactone polymerization by using aluminum complexes bearing ketiminate ligands: steric, electronic, and chelating effects. RSC Adv 2015. [DOI: 10.1039/c5ra15530d] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/22/2022] Open
Abstract
Herein, the l-lactide polymerization rate of a series of Al complexes bearing ketimine ligands was investigated, and the polymerization characteristics between l-lactide and ε-caprolactone were compared.
Collapse
Affiliation(s)
- Yu-Hsieh Chen
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung 80708
- Republic of China
| | - Yen-Jen Chen
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung 80708
- Republic of China
| | - Hsi-Ching Tseng
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung 80708
- Republic of China
| | - Cheng-Jie Lian
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung 80708
- Republic of China
| | - Hsin-Yi Tsai
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung 80708
- Republic of China
| | - Yi-Chun Lai
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung 80708
- Republic of China
| | - Sodio C. N. Hsu
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung 80708
- Republic of China
| | - Michael Y. Chiang
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung 80708
- Republic of China
- Department of Chemistry
| | - Hsuan-Ying Chen
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung 80708
- Republic of China
| |
Collapse
|
26
|
Chen HY, Lee YH, Chiang MY, Lu WY, Tseng HC, Tsai HY, Chen YH, Lai YC, Chen HY. Coordinating effect in ring-opening polymerization of ε-caprolactone using aluminum complexes bearing bisphenolate as catalysts. RSC Adv 2015. [DOI: 10.1039/c5ra10753a] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/31/2022] Open
Abstract
A series of Al complexes bearing diphenolate ligands was synthesized and their application for the ring-opening polymerization of ε-caprolactone was studied.
Collapse
Affiliation(s)
- Hsing-Yin Chen
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung
- Republic of China
| | - Ying-Hsien Lee
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung
- Republic of China
| | - Michael Y. Chiang
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung
- Republic of China
- Department of Chemistry
| | - Wei-Yi Lu
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung
- Republic of China
- Department of Chemistry
| | - Hsi-Ching Tseng
- Department of Chemistry
- National Chung Hsing University
- Taichung 402
- Republic of China
| | - Hsin-Yi Tsai
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung
- Republic of China
| | - Yu-Hsieh Chen
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung
- Republic of China
| | - Yi-Chun Lai
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung
- Republic of China
| | - Hsuan-Ying Chen
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung
- Republic of China
| |
Collapse
|
27
|
Tseng HC, Chiang MY, Lu WY, Chen YJ, Lian CJ, Chen YH, Tsai HY, Lai YC, Chen HY. A closer look at ε-caprolactone polymerization catalyzed by alkyl aluminum complexes: the effect of induction period on overall catalytic activity. Dalton Trans 2015; 44:11763-73. [DOI: 10.1039/c5dt01563d] [Citation(s) in RCA: 42] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/30/2023]
Abstract
Previous studies on the ring-opening polymerization of ε-caprolactone using structurally related aluminum complexes as pre-catalysts showed inconsistent trends in the total conversion time.
Collapse
Affiliation(s)
- Hsi-Ching Tseng
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung 80708
- R.O.C
| | - Michael Y. Chiang
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung 80708
- R.O.C
- Department of Chemistry
| | - Wei-Yi Lu
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung 80708
- R.O.C
| | - Yen-Jen Chen
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung 80708
- R.O.C
| | - Cheng-Jie Lian
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung 80708
- R.O.C
| | - Yu-Hsieh Chen
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung 80708
- R.O.C
| | - Hsin-Yi Tsai
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung 80708
- R.O.C
| | - Yi-Chun Lai
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung 80708
- R.O.C
| | - Hsuan-Ying Chen
- Department of Medicinal and Applied Chemistry
- Kaohsiung Medical University
- Kaohsiung 80708
- R.O.C
| |
Collapse
|
28
|
Tsai HY, Hamilton A, Guy DR, Houston RD. Single nucleotide polymorphisms in the insulin-like growth factor 1 (IGF1) gene are associated with growth-related traits in farmed Atlantic salmon. Anim Genet 2014; 45:709-15. [PMID: 25090910 PMCID: PMC4171758 DOI: 10.1111/age.12202] [Citation(s) in RCA: 26] [Impact Index Per Article: 2.6] [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] [Accepted: 06/28/2014] [Indexed: 11/28/2022]
Abstract
Understanding the genetic basis of variation in traits related to growth and fillet quality in Atlantic salmon is of importance to the aquaculture industry. Several growth-related QTL have been identified via the application of genetic markers. The IGF1 gene is considered a highly conserved and crucial growth-regulating gene in salmonid species. However, the association between polymorphisms in the IGF1 gene and growth-related traits in Atlantic salmon is unknown. Therefore, in this study, regions of the Atlantic salmon IGF1 gene were sequenced, aligned and compared across individuals. Three SNPs were identified in the putative promoter (SNP1, g.5763G>T; GenBank no. AGKD01012745), intron 1 (SNP2, g.7292C>T; GenBank no. AGKD01012745) and intron 3 (SNP3, g.4671A>C; GenBank no. AGKD01133398) regions respectively. These SNPs were genotyped in a population of 4800 commercial Atlantic salmon with data on several weight and fillet traits measured at harvest (at approximately 3 years of age). In a mixed model, association analysis of individual SNPs, SNP1 and SNP3 were both significantly associated with several weight traits (P < 0.05). The estimated additive effect on overall harvest weight was approximately 35 and 110 g for SNPs 1 and 3 respectively. A haplotype analysis confirmed the association between genetic variation in the IGF1 gene with overall body weight (P < 0.05) and fillet component traits (P < 0.05). Our findings suggest the identified nucleotide polymorphisms of the IGF1 gene may either affect farmed Atlantic salmon growth directly or be in population-wide linkage disequilibrium with causal variation, highlighting their possible utility as candidates for marker-assisted selection in the aquaculture industry.
Collapse
Affiliation(s)
- H Y Tsai
- The Roslin Institute and Royal (Dick) School of Veterinary Studies, The University of Edinburgh, Midlothian, EH25 9PS, UK
| | | | | | | |
Collapse
|
29
|
Huang HY, Kuo LY, Cheng FH, Chen JC, Hsu CL, Chen BY, Lin YS, Tsai HY, Wei J. Prognostic value of oxygen consumption and ventilatory equivalent slope in female candidates referred for heart transplantation--experience of a single Asian center. Transplant Proc 2014; 46:897-9. [PMID: 24767375 DOI: 10.1016/j.transproceed.2013.09.043] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/05/2013] [Accepted: 09/26/2013] [Indexed: 11/19/2022]
Abstract
BACKGROUND Ventilatory equivalent (ventilation/CO2 production, VE/VCO2) slope has been suggested to be a much more accurate predicator than peak oxygen consumption (VO2) during exercise for prognosis in patients with heart failure. However, patients tested were predominately male. METHODS To investigate whether peak VO2 and VE/VCO2 slope predict the prognosis of female patients with heart failure, we retrospectively collected data of 39 female candidates referred for heart transplantation (HTx) from 2004 to 2011. Both peak VO2 and VE/VCO2 slope were obtained from the results of an exercise pulmonary function test. The outcome was death or mechanical devices implantation or HTx. Logistic regression was used for data analysis. RESULTS Mean age and heart failure survival score were 55.8 ± 13.7 years and 7.3 ± 0.7, respectively. Each increment of VE/VCO2 slope decreased 2-year event-free rate (odds ratio [OR] = 0.88, 95% confidence interval [CI] = 0.79 to 0.98) in the female group. The predictions of VE/VCO2 slope for 1-year event-free survival did not reach statistical significance (OR = 0.92, 95% CI = 0.84 to 1.00). On the other hand, peak VO2 was not a strong predictor for 1- and 2-year event-free survival (OR = 1.22 and 1.16, 95% CI = 0.96 to 1.55 and 0.94 to 1.44, respectively). CONCLUSIONS Impairment in exercise ventilation holds a clinical and long-term prognostic impact in female patients with heart failure. The role of peak VO2 during exercise in prognostic prediction among the cohort should be further investigated.
Collapse
Affiliation(s)
- H Y Huang
- Heart Center, Cheng Hsin General Hospital, Pei-Tou, Taipei, Taiwan
| | - L Y Kuo
- Heart Center, Cheng Hsin General Hospital, Pei-Tou, Taipei, Taiwan
| | - F H Cheng
- Heart Center, Cheng Hsin General Hospital, Pei-Tou, Taipei, Taiwan
| | - J C Chen
- Heart Center, Cheng Hsin General Hospital, Pei-Tou, Taipei, Taiwan
| | - C L Hsu
- Heart Center, Cheng Hsin General Hospital, Pei-Tou, Taipei, Taiwan
| | - B Y Chen
- Heart Center, Cheng Hsin General Hospital, Pei-Tou, Taipei, Taiwan
| | - Y S Lin
- Heart Center, Cheng Hsin General Hospital, Pei-Tou, Taipei, Taiwan
| | - H Y Tsai
- Heart Center, Cheng Hsin General Hospital, Pei-Tou, Taipei, Taiwan
| | - J Wei
- Heart Center, Cheng Hsin General Hospital, Pei-Tou, Taipei, Taiwan.
| |
Collapse
|
30
|
Tsai HY, Lee A, Peng W, Yates MZ. Synthesis of poly(N-isopropylacrylamide) particles for metal affinity binding of peptides. Colloids Surf B Biointerfaces 2014; 114:104-10. [PMID: 24176889 PMCID: PMC3877178 DOI: 10.1016/j.colsurfb.2013.09.060] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2013] [Revised: 09/23/2013] [Accepted: 09/28/2013] [Indexed: 10/26/2022]
Abstract
Temperature-sensitive poly(N-isopropylacrylamide) (PNIPAM) microgel particles with metal affinity ligands were prepared for selective binding of peptides containing the His6-tag (six consecutive histidine residues). The PNIPAM particles were copolymerized with the functional ligand vinylbenzyl iminodiacetic acid (VBIDA) through a two-stage dispersion polymerization using poly(N-vinyl pyrrolidone) (PVP) as a steric stabilizer. The resulting particles were monodisperse in size and colloidally stable over a wide range of temperature and ionic strength due to chemically grafted PVP chains. The particle size was also found to be sensitive to ionic strength and pH of the aqueous environment, likely due to the electrostatic repulsion between ionized VBIDA groups. Divalent nickel ions were chelated to the VBIDA groups, allowing selective metal affinity attachment of a His6-Cys peptide. The peptide was released upon the addition of the competitive ligand imidazole, demonstrating that the peptide attachment to the particles is reversible and selective.
Collapse
Affiliation(s)
- Hsin-Yi Tsai
- Department of Chemical Engineering and Laboratory for Laser Energetics, University of Rochester, Rochester, NY 14627, United States
| | - Alexander Lee
- Department of Chemical Engineering and Laboratory for Laser Energetics, University of Rochester, Rochester, NY 14627, United States
| | - Wei Peng
- Department of Chemical Engineering and Laboratory for Laser Energetics, University of Rochester, Rochester, NY 14627, United States
| | - Matthew Z Yates
- Department of Chemical Engineering and Laboratory for Laser Energetics, University of Rochester, Rochester, NY 14627, United States.
| |
Collapse
|
31
|
Lai CC, Yeh YH, Hsieh WP, Kuo CT, Wang WC, Chu CH, Hung CL, Cheng CY, Tsai HY, Lee JL, Tang CY, Hsu LA. Whole-exome sequencing to identify a novel LMNA gene mutation associated with inherited cardiac conduction disease. PLoS One 2013; 8:e83322. [PMID: 24349489 PMCID: PMC3861486 DOI: 10.1371/journal.pone.0083322] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/27/2013] [Accepted: 11/01/2013] [Indexed: 01/10/2023] Open
Abstract
Background Inherited cardiac conduction diseases (CCD) are rare but are caused by mutations in a myriad of genes. Recently, whole-exome sequencing has successfully led to the identification of causal mutations for rare monogenic Mendelian diseases. Objective To investigate the genetic background of a family affected by inherited CCD. Methods and Results We used whole-exome sequencing to study a Chinese family with multiple family members affected by CCD. Using the pedigree information, we proposed a heterozygous missense mutation (c.G695T, Gly232Val) in the lamin A/C (LMNA) gene as a candidate mutation for susceptibility to CCD in this family. The mutation is novel and is expected to affect the conformation of the coiled-coil rod domain of LMNA according to a structural model prediction. Its pathogenicity in lamina instability was further verified by expressing the mutation in a cellular model. Conclusions Our results suggest that whole-exome sequencing is a feasible approach to identifying the candidate genes underlying inherited conduction diseases.
Collapse
Affiliation(s)
- Chun-Chi Lai
- Department of Computer Science, National Tsing Hua University, Hsinchu, Taiwan
| | - Yung-Hsin Yeh
- First Cardiovascular Division, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Tao-Yuan, Taiwan
| | - Wen-Ping Hsieh
- Institute of Statistics, National Tsing Hua University, Hsinchu, Taiwan
| | - Chi-Tai Kuo
- First Cardiovascular Division, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Tao-Yuan, Taiwan
| | - Wen-Ching Wang
- Institute of Molecular and Cellular Biology and Department of Life Sciences, National Tsing-Hua University, Hsinchu, Taiwan
- Biomedical Science and Engineering Center, National Tsing Hua University, Hsinchu, Taiwan
| | - Chia-Han Chu
- Biomedical Science and Engineering Center, National Tsing Hua University, Hsinchu, Taiwan
| | - Chiu-Lien Hung
- Institute of Molecular and Cellular Biology and Department of Life Sciences, National Tsing-Hua University, Hsinchu, Taiwan
- Biomedical Science and Engineering Center, National Tsing Hua University, Hsinchu, Taiwan
| | - Chia-Yang Cheng
- Department of Computer Science, National Tsing Hua University, Hsinchu, Taiwan
- Biomedical Science and Engineering Center, National Tsing Hua University, Hsinchu, Taiwan
| | - Hsin-Yi Tsai
- First Cardiovascular Division, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Tao-Yuan, Taiwan
| | - Jia-Lin Lee
- Institute of Molecular and Cellular Biology and Department of Life Sciences, National Tsing-Hua University, Hsinchu, Taiwan
| | - Chuan-Yi Tang
- Department of Computer Science, National Tsing Hua University, Hsinchu, Taiwan
| | - Lung-An Hsu
- First Cardiovascular Division, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Tao-Yuan, Taiwan
- * E-mail:
| |
Collapse
|
32
|
Tsai HY, Vats K, Yates MZ, Benoit DSW. Two-dimensional patterns of poly(N-isopropylacrylamide) microgels to spatially control fibroblast adhesion and temperature-responsive detachment. Langmuir 2013; 29:12183-93. [PMID: 23968193 PMCID: PMC3830545 DOI: 10.1021/la400971g] [Citation(s) in RCA: 36] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/11/2023]
Abstract
Thermoresponsive poly(N-isopropyl acrylamide) (PNIPAM) microgels were patterned on polystyrene substrates via dip coating, creating cytocompatible substrates that provided spatial control over cell adhesion. This simple dip-coating method, which exploits variable substrate withdrawal speeds forming particle suspension stripes of densely packed PNIPAM microgels, while spacings between the stripes contained sparsely distributed PNIPAM microgels. The assembly of three different PNIPAM microgel patterns, namely, patterns composed of 50 μm stripe/50 μm spacing, 50 μm stripe/100 μm spacing, and 100 μm stripe/100 μm spacing, was verified using high-resolution optical micrographs and ImageJ analysis. PNIPAM microgels existed as monolayers within stripes and spacings, as revealed by atomic force microscopy (AFM). Upon cell seeding on PNIPAM micropatterned substrates, NIH3T3 fibroblast cells preferentially adhered within spacings to form cell patterns. Three days after cell seeding, cells proliferated to form confluent cell layers. The thermoresponsiveness of the underlying PNIPAM microgels was then utilized to recover fibroblast cell sheets from substrates simply by lowering the temperature without disrupting the underlying PNIPAM microgel patterns. Harvested cell sheets similar to these have been used for multiple tissue engineering applications. Also, this simple, low-cost, template-free dip-coating technique can be utilized to micropattern multifunctional PNIPAM microgels, generating complex stimuli-responsive substrates to study cell-material interactions and allow drug delivery to cells in a spatially and temporally controlled manner.
Collapse
Affiliation(s)
- Hsin-Yi Tsai
- Department of Chemical Engineering, University of Rochester, Rochester, New York, 14627, United States
| | - Kanika Vats
- Department of Biomedical Engineering, University of Rochester, Rochester, New York, 14627, United States
| | - Matthew Z. Yates
- Department of Chemical Engineering, University of Rochester, Rochester, New York, 14627, United States
| | - Danielle S. W. Benoit
- Department of Chemical Engineering, University of Rochester, Rochester, New York, 14627, United States
- Department of Biomedical Engineering, University of Rochester, Rochester, New York, 14627, United States
- The Center for Musculoskeletal Research and Department of Orthopaedics, University of Rochester Medical Center, Rochester, New York, 14627, United States
- Corresponding Author:
| |
Collapse
|
33
|
Lin YH, Lai JY, Tsai HY, Chang HC, Huang HJ, Chen YF, Huang KC. Optical imaging with spectrum aberration correction using a filtering macrolens. Appl Opt 2013; 52:5058-5064. [PMID: 23872748 DOI: 10.1364/ao.52.005058] [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] [Subscribe] [Scholar Register] [Received: 05/06/2013] [Accepted: 06/13/2013] [Indexed: 06/02/2023]
Abstract
A filtering macrolens was developed to simultaneously achieve macro-optical imaging and correct spectrum aberration. The macrolens was a doublet lens comprising a filtering lens and a close-up lens. The shape of the filtering lens was designed to eliminate the optical path differences between the light rays in the absorbing medium. The close-up lens was designed to decrease the effective focal length of an ordinary camera lens to provide high magnification capability and collimate the diverging beams through the filtering lens. Experimental results demonstrated that the spectrum uniformity of the macro-optical images was markedly improved by the filtering macrolens. This innovation may be used in finite conjugate optical systems.
Collapse
Affiliation(s)
- Yu-Hsuan Lin
- Instrument Technology Research Center, National Applied Research Laboratories, Hsinchu 30076, Taiwan.
| | | | | | | | | | | | | |
Collapse
|
34
|
Hwang YS, Tsai HY, Chen HY, Wei HW, Lin JH, Liu HL. SU-E-I-59: Patient-Based Average Glandular Dose Estimations in Taiwan. Med Phys 2013. [DOI: 10.1118/1.4814169] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
|
35
|
Tung YC, Wu LS, Chen WJ, Kuo CT, Wang CL, Chang CJ, Tsai HY, Yeh YH, Hsu LA. C-Reactive Protein Gene Polymorphisms and the Risk of Atrial Fibrillation in a Chinese Population in Taiwan. Acta Cardiol Sin 2013; 29:208-216. [PMID: 27122709 PMCID: PMC4804832] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 02/22/2013] [Accepted: 04/26/2013] [Indexed: 06/05/2023]
Abstract
BACKGROUND Elevated plasma C-reactive protein (CRP) levels can be used to predict an increased risk of future atrial fibrillation (AF). However, several single polynucleotide polymorphisms (SNPs) in the CRP gene affect CRP levels. This study aims to elucidate the correlation between CRP gene polymorphisms and the risk of AF among a Chinese population in Taiwan. METHODS A total of 200 patients with AF and 240 age- and gender-comparable control subjects were enrolled in this study. From these patients, five SNPs in the CRP gene were selected and genotyped. RESULTS Patients with AF had significantly higher plasma CRP levels than the controls. In the total study population, the minor alleles of rs3091244 and rs1205 were significantly associated with higher CRP level (p = 0.001 and 0.045, respectively). The frequency of rs1800947 minor allele (C) was significantly higher in patients with AF than that in control subjects (12.8% and 4.6%, respectively; p < 0.001). On multivariate analysis, the presence of the C allele of rs1800947 was significantly and independently associated with AF after adjustment for age, gender, body mass index, hypertension, diabetes, smoking, hypercholesterolemia, coronary artery disease, concomitant medication, and CRP levels (odds ratio = 3.21; 95% confidence interval = 1.54-6.68; p = 0.01). Haplotype analysis further verified that the rs3091244C and rs1800947C bi-loci haplotype was significantly overpresented in patients with AF than in the controls. CONCLUSIONS Our results suggest that the presence of the C allele of rs1800947 may indicate susceptibility to AF in a Chinese population in Taiwan. KEY WORDS Atrial fibrillation; C-reactive protein; Polymorphism.
Collapse
Affiliation(s)
- Ying-Chang Tung
- First Cardiovascular Division, Department of Internal Medicine, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Linkou, Taoyuan, Taiwan
| | - Lung-Sheng Wu
- First Cardiovascular Division, Department of Internal Medicine, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Linkou, Taoyuan, Taiwan
| | - Wei-Jan Chen
- First Cardiovascular Division, Department of Internal Medicine, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Linkou, Taoyuan, Taiwan
| | - Chi-Tai Kuo
- First Cardiovascular Division, Department of Internal Medicine, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Linkou, Taoyuan, Taiwan
| | - Chun-Li Wang
- First Cardiovascular Division, Department of Internal Medicine, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Linkou, Taoyuan, Taiwan
| | - Chi-Jen Chang
- First Cardiovascular Division, Department of Internal Medicine, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Linkou, Taoyuan, Taiwan
| | - Hsin-Yi Tsai
- First Cardiovascular Division, Department of Internal Medicine, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Linkou, Taoyuan, Taiwan
| | - Yung-Hsin Yeh
- First Cardiovascular Division, Department of Internal Medicine, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Linkou, Taoyuan, Taiwan
| | - Lung-An Hsu
- First Cardiovascular Division, Department of Internal Medicine, Chang Gung Memorial Hospital, Chang Gung University College of Medicine, Linkou, Taoyuan, Taiwan
| |
Collapse
|
36
|
Chao CM, Lai CC, Tsai HY, Wu CJ, Tang HJ, Ko WC, Hsueh PR. Pneumonia caused by Aeromonas species in Taiwan, 2004-2011. Eur J Clin Microbiol Infect Dis 2013; 32:1069-75. [PMID: 23474673 DOI: 10.1007/s10096-013-1852-6] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2013] [Accepted: 02/26/2013] [Indexed: 12/19/2022]
Abstract
We investigated the clinical characteristics of patients with pneumonia caused by Aeromonas species. Patients with pneumonia caused by Aeromonas species during the period 2004 to 2011 were identified from a computerized database of a regional hospital in southern Taiwan. The medical records of these patients were retrospectively reviewed. Of the 84 patients with pneumonia due to Aeromonas species, possible Aeromonas pneumonia was diagnosed in 58 patients, probable Aeromonas pneumonia was diagnosed in 18 patients, and pneumonia due to Aeromonas was conclusively diagnosed in 8 patients. Most of the cases of Aeromonas pneumonia developed in men and in patients of advanced age. A. hydrophila (n = 50, 59.5 %) was the most common pathogen, followed by A. caviae (n = 24, 28.6 %), A. veronii biovar sobria (n = 7, 8.3 %), and A. veronii biovar veronii (n = 3, 3.6 %). Cancer (n = 37, 44.0 %) was the most common underlying disease, followed by diabetes mellitus (n = 27, 32.1 %). Drowning-associated pneumonia developed in 6 (7.1 %) patients. Of 47 patients who were admitted to the intensive care ward, 42 patients developed acute respiratory failure and 24 of those patients died. The overall in-hospital mortality rate was significantly associated with liver cirrhosis, cancer, initial presentation of shock, and usage of mechanical ventilation. In conclusion, Aeromonas species should be considered as one of the causative pathogens of severe pneumonia, especially in immunocompromised patients, and should be recognized as a cause of drowning-associated pneumonia. Cirrhosis, cancer, and shock as the initial presenting symptom are associated with poor outcome.
Collapse
Affiliation(s)
- C M Chao
- Department of Intensive Care Medicine, Chi Mei Medical Center, Liouying, Tainan, Taiwan
| | | | | | | | | | | | | |
Collapse
|
37
|
Tung CJ, Tsai SF, Tsai HY, Chen IJ. Determination of voxel phantom for reference Taiwanese adult from CT image analyses. Radiat Prot Dosimetry 2011; 146:186-190. [PMID: 21511723 DOI: 10.1093/rpd/ncr144] [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] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
The International Commission on Radiological Protection Publication 103 recommended that ionising radiation doses should be assessed based on voxel phantoms. An anthropomorphic voxel phantom for the Reference Taiwanese Adult was built from analyses of computed tomography (CT) images. Thirty representative adult individuals were selected from normal patients in the hospital, with body mass index between 19.6 and 25.6 for males and 18.8 and 27.0 for females and body height between 163 and 175 cm for males and 152 and 162 cm for females. The Reference Taiwanese Adult was determined from these individuals by analysing their CT images for parameters characterising the size, position and orientation of several organs. Analysed parameters included the volume, surface area, major and minor axes, mean chord length, position relative to the body centre, and orientation with respect to the body axis, for liver, spleen, kidney, stomach, gallbladder and bladder. The person with the highest score was designated the Reference Taiwanese Adult.
Collapse
Affiliation(s)
- C J Tung
- Department of Medical Imaging and Radiological Sciences, Chang Gung University, Kweishan 333, Taiwan
| | | | | | | |
Collapse
|
38
|
Tsai HY, Liu HL, Hwang YH, Chen CC, Wan YL. SU-E-I-94: Survey of CT Image Quality and Patient Doses in Taiwan. Med Phys 2011. [DOI: 10.1118/1.3611668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
|
39
|
Wang LY, Tsai HY, Lin HC. Novel Supramolecular Side-Chain Banana-Shaped Liquid Crystalline Polymers Containing Covalent- and Hydrogen-Bonded Bent Cores. Macromolecules 2010. [DOI: 10.1021/ma901960c] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
Affiliation(s)
- Ling-Yung Wang
- Department of Materials Science and Engineering, National Chiao Tung University, Hsinchu, Taiwan, ROC
| | - Hsin-Yi Tsai
- Department of Materials Science and Engineering, National Chiao Tung University, Hsinchu, Taiwan, ROC
| | - Hong-Cheu Lin
- Department of Materials Science and Engineering, National Chiao Tung University, Hsinchu, Taiwan, ROC
| |
Collapse
|
40
|
Tsai HY, Liu HL, Hwang YS, Chen CC. SU-FF-I-72: Evaluation and Comparison of Image Quality Figures for Digital Mammography. Med Phys 2009. [DOI: 10.1118/1.3181192] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
|
41
|
Liao YL, Tsai HY, Lin JH, Chen CP. SU-FF-I-68: Survey of MSCT and SSCT Scanners in Taiwan: Technical Factors, CTDIs, and Effective Doses. Med Phys 2009. [DOI: 10.1118/1.3181188] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
|
42
|
Lai PL, Tsai HY, Li YY, Tyan YS, Tung CJ. SU-FF-I-85: Effects of Automatic Dose Rate Control On Patient Dose in a Digital Flat-Panel Detector System. Med Phys 2009. [DOI: 10.1118/1.3181205] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
|
43
|
Liao YL, Tsai HY, Tyan YS, Cheng KY. SU-GG-I-76: Estimating Image Quality and Radiation Dose Reduction with In-Plane Bismuth Shielding for CT Examinations: Phantom Study. Med Phys 2008. [DOI: 10.1118/1.2961474] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
|
44
|
Tsai HY, Chang YC, Tyan YS. SU-GG-I-44: Real-Time Dose Measurements of Automatic Tube Current Modulation in Multislice CT. Med Phys 2008. [DOI: 10.1118/1.2961442] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
|
45
|
Chiang-Hsieh CC, Tsai HY, Tung CJ, Chao TC. SU-GG-I-57: A Mutlidetector CT Model Using BEAMnrc/DOSXYZnrc Code for Estimating Radiation Doses: Phantom Study. Med Phys 2008. [DOI: 10.1118/1.2961455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
|
46
|
Tsai SF, Tsai HY, Tyan YS. WE-E-332-03: Evaluating Effective Doses and Image Quality for Multislice CT Using Automatic Tube Current Modulation. Med Phys 2008. [DOI: 10.1118/1.2962795] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
|
47
|
Chen KC, Yang CS, Hsieh MC, Tsai HY, Lee FL, Hsu WM. Successful management of double penetrating ocular trauma with retinal detachment and traumatic endophthalmitis in a child. J Chin Med Assoc 2008; 71:159-62. [PMID: 18364270] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 04/07/2023] Open
Abstract
The prognosis of double penetrating ocular trauma in children is usually guarded. We report the good anatomic and functional outcome in a child with double penetrating ocular trauma associated with retinal detachment and traumatic endophthalmitis. A 5-year-old boy presented to the emergency room with pain and tearing in his left eye after a penetrating ocular injury by a rusted steel wire. After examination under anesthesia, both entrance and exit wounds in the sclera were found, and were complicated with inferior retinal detachment. There were signs of infection such as corneal edema, increased cell, flare and hypopyon in the anterior chamber, and vitreous opacity. The post-traumatic endophthalmitis was successfully treated with prompt intravenous and intravitreal antibiotics injection. The patient subsequently underwent scleral buckling and transpupillary indirect laser photocoagulation operation on the 10th day after trauma. The retina was completely reattached 2 weeks later, and his vision recovered to 6/10 in his left eye after a 6-month follow-up. Prompt use of antibiotics and meticulous surgical intervention are essential in the successful management of such patients.
Collapse
Affiliation(s)
- Kuan-Chieh Chen
- Department of Ophthalmology, Taipei Veterans General Hospital, Taipei, Taiwan, R.O.C
| | | | | | | | | | | |
Collapse
|
48
|
Abstract
We report a detection method for C-reactive protein (CRP) based on competitive immunoassay using magnetic nanoparticles under magnetic fields. Functional magnetic nanoparticles were prepared and conjugated with anti-CRP for immunoassay. Magnetic nanoparticles labeled with anti-CRP were flowed through a separation channel to form depositions for selective capture of CRP under magnetic fields. Free CRP and a fixed number of CRP-labeled particles were used to compete for a limited number of anti-CRP binding sites on the magnetic nanoparticles. The deposited percentages of CRP-labeled particles at various concentrations of free CRP were determined and used as a reference plot. The determination of CRP in the unknown sample was deduced from the reference plot using the deposited percentages. The running time was less than 10 min. The CRP concentration of serum sample was linearly over the range of 1.2-310 microg/mL for deposited percentages of CRP-labeled particles. The detection limit of this method was 0.12 microg/mL which was approximately 8-fold lower than the typical clinical cutoff concentration (1 microug/mL). This method can provide a fast, simple, and sensitive way for protein detection based on competitive immunoassay using magnetic nanoparticles under magnetic fields.
Collapse
Affiliation(s)
- H Y Tsai
- Department of Applied Chemistry, Chung Shan Medical University, Taichung, Taiwan
| | | | | | | |
Collapse
|
49
|
Lin YC, Tsai HY, Chiang-Hsieh CC, Tung CJ. SU-FF-I-45: Evaluation of Age-Dependant Dose and Image Quality for CT. Med Phys 2007. [DOI: 10.1118/1.2760422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
|
50
|
Tsai HY, Tung CJ, Yu CC, Tyan YS. Survey of computed tomography scanners in Taiwan: Dose descriptors, dose guidance levels, and effective doses. Med Phys 2007; 34:1234-43. [PMID: 17500455 DOI: 10.1118/1.2712412] [Citation(s) in RCA: 31] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022] Open
Abstract
The IAEA and the ICRP recommended dose guidance levels for the most frequent computed tomography (CT) examinations to promote strategies for the optimization of radiation dose to CT patients. A national survey, including on-site measurements and questionnaires, was conducted in Taiwan in order to establish dose guidance levels and evaluate effective doses for CT. The beam quality and output and the phantom doses were measured for nine representative CT scanners. Questionnaire forms were completed by respondents from facilities of 146 CT scanners out of 285 total scanners. Information on patient, procedure, scanner, and technique for the head and body examinations was provided. The weighted computed tomography dose index (CTDI(w)), the dose length product (DLP), organ doses and effective dose were calculated using measured data, questionnaire information and Monte Carlo simulation results. A cost-effective analysis was applied to derive the dose guidance levels on CTDI(w) and DLP for several CT examinations. The mean effective dose +/- standard deviation distributes from 1.6 +/- 0.9 mSv for the routine head examination to 13 +/- 11 mSv for the examination of liver, spleen, and pancreas. The surveyed results and the dose guidance levels were provided to the national authorities to develop quality control standards and protocols for CT examinations.
Collapse
Affiliation(s)
- H Y Tsai
- Department of Medical Imaging and Radiological Sciences, Chung Shan Medical University, Taichung 402, Taiwan
| | | | | | | |
Collapse
|