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Tsou HH, Lee FJ, Wu SI, Fan B, Wu HY, Lin YH, Hsu YT, Cheng C, Cheng YC, Jiang WM, Chiou HY, Chen WJ, Hsiung CA, Chen PC, Sytwu HK. Suppression of the alpha, delta, and omicron variants of SARS-Cov-2 in Taiwan. PLoS One 2024; 19:e0300303. [PMID: 38498498 PMCID: PMC10947699 DOI: 10.1371/journal.pone.0300303] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2023] [Accepted: 02/24/2024] [Indexed: 03/20/2024] Open
Abstract
BACKGROUND Taiwan was a coronavirus disease 2019 (COVID-19) outlier, with an extraordinarily long transmission-free record: 253 days without locally transmitted infections while the rest of the world battled wave after wave of infection. The appearance of the alpha variant in May 2021, closely followed by the delta variant, disrupted this transmission-free streak. However, despite low vaccination coverage (<1%), outbreaks were well-controlled. METHODS This study analyzed the time to border closure and conducted one-sample t test to compare between Taiwan and Non-Taiwan countries prior to vaccine introduction. The study also collected case data to observe the dynamics of omicron transmission. Time-varying reproduction number,Rt, was calculated and was used to reflect infection impact at specified time points and model trends of future incidence. RESULTS The study analyzed and compare the time to border closure in Taiwan and non-Taiwan countries. The mean times to any border closure from the first domestic case within each country were -21 and 5.98 days, respectively (P < .0001). The Taiwanese government invested in quick and effective contact tracing with a precise quarantine strategy in lieu of a strict lockdown. Residents followed recommendations based on self-discipline and unity. The self-discipline in action is evidenced in Google mobility reports. The central and local governments worked together to enact non-pharmaceutical interventions (NPIs), including universal masking, social distancing, limited unnecessary gatherings, systematic contact tracing, and enhanced quarantine measures. The people cooperated actively with pandemic-prevention regulations, including vaccination and preventive NPIs. CONCLUSIONS This article describes four key factors underlying Taiwan's success in controlling COVID-19 transmission: quick responses; effective control measures with new technologies and rolling knowledge updates; unity and cooperation among Taiwanese government agencies, private companies and organizations, and individual citizens; and Taiwanese self-discipline.
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Affiliation(s)
- Hsiao-Hui Tsou
- Institute of Population Health Sciences, National Health Research Institutes, Zhunan, Miaoli County, Taiwan
- Graduate Institute of Biostatistics, College of Public Health, China Medical University, Taichung, Taiwan
| | - Fang-Jing Lee
- Institute of Population Health Sciences, National Health Research Institutes, Zhunan, Miaoli County, Taiwan
| | - Shiow-Ing Wu
- Institute of Population Health Sciences, National Health Research Institutes, Zhunan, Miaoli County, Taiwan
| | - Byron Fan
- Brown University, Providence, Rhode Island, United States of America
| | - Hsiao-Yu Wu
- Institute of Population Health Sciences, National Health Research Institutes, Zhunan, Miaoli County, Taiwan
| | - Yu-Hsuan Lin
- Institute of Population Health Sciences, National Health Research Institutes, Zhunan, Miaoli County, Taiwan
- Department of Psychiatry, National Taiwan University Hospital, Taipei, Taiwan
- Department of Psychiatry, College of Medicine, National Taiwan University, Taipei, Taiwan
- Institute of Health Behaviors and Community Sciences, College of Public Health, National Taiwan University, Taipei, Taiwan
| | - Ya-Ting Hsu
- Institute of Population Health Sciences, National Health Research Institutes, Zhunan, Miaoli County, Taiwan
| | - Chieh Cheng
- Institute of Population Health Sciences, National Health Research Institutes, Zhunan, Miaoli County, Taiwan
| | - Yu-Chieh Cheng
- Institute of Population Health Sciences, National Health Research Institutes, Zhunan, Miaoli County, Taiwan
| | - Wei-Ming Jiang
- Institute of Population Health Sciences, National Health Research Institutes, Zhunan, Miaoli County, Taiwan
| | - Hung-Yi Chiou
- Institute of Population Health Sciences, National Health Research Institutes, Zhunan, Miaoli County, Taiwan
- School of Public Health, College of Public Health, Taipei Medical University, Taipei, Taiwan
- Master’s Program in Applied Epidemiology, College of Public Health, Taipei Medical University, Taipei, Taiwan
| | - Wei J. Chen
- Center for Neuropsychiatric Research, National Health Research Institutes, Zhunan, Miaoli County, Taiwan
- Institute of Epidemiology and Preventive Medicine, College of Public Health, National Taiwan University, Taipei, Taiwan
| | - Chao A. Hsiung
- Institute of Population Health Sciences, National Health Research Institutes, Zhunan, Miaoli County, Taiwan
| | - Pau-Chung Chen
- National Institute of Environmental Health Sciences, National Health Research Institutes, Zhunan, Miaoli County, Taiwan
- Institute of Environmental and Occupational Health Sciences, National Taiwan University College of Public Health, Taipei, Taiwan
- Department of Public Health, National Taiwan University College of Public Health, Taipei, Taiwan
- Department of Environmental and Occupational Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Huey-Kang Sytwu
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Zhunan, Miaoli County, Taiwan
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Jang YA, Wu HY, Hsu YT, Chen YK, Chiou HY, Sytwu HK, Chen WJ, Tsou HH. Beyond the waves: Unraveling pandemic outcomes with genomic insights and immunity analysis - Evidence from 14 countries. Prev Med 2024; 178:107820. [PMID: 38092329 DOI: 10.1016/j.ypmed.2023.107820] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/31/2023] [Revised: 12/08/2023] [Accepted: 12/09/2023] [Indexed: 12/24/2023]
Abstract
OBJECTIVE Although the World Health Organization and many governments have recategorized COVID-19 as a generally mild to moderately severe disease, consecutive pandemic waves driven by immune escape variants have underscored the need for timely and accurate prediction of the next outbreak. Nevertheless, little attention has been paid to translating genomic data and infection- and vaccine-induced immunity into direct estimates. METHODS We retrieved epidemiologic and genomic data shortly before pandemic waves across 14 developed countries from late 2021 to mid-2022 and examined associations between early-stage variant competition, infection- and vaccine-induced immunity, and the time intervals between wave peaks. We applied regression analysis and the generalized estimating equation method to construct an inferential model. RESULTS Each per cent increase in the proportion of a new variant was associated with a 1.0% reduction in interpeak intervals on average. Curvilinear associations between vaccine-induced immunity and outcome variables were observed, suggesting that reaching a critical vaccine distribution rate may decrease the caseload of the upcoming wave. CONCLUSIONS By leveraging readily accessible pre-outbreak genomic and epidemiologic data, our results not only substantiate the predictive potential of early variant fractions but also propose that immunity acquired through infection alone may not sufficiently mitigate transmission. Conversely, a rapid and widespread vaccination initiative appears to be correlated with a decrease in disease incidence.
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Affiliation(s)
- Yung-An Jang
- Institute of Population Health Sciences, National Health Research Institutes, Zhunan, Miaoli County, Taiwan
| | - Hsiao-Yu Wu
- Institute of Population Health Sciences, National Health Research Institutes, Zhunan, Miaoli County, Taiwan
| | - Ya-Ting Hsu
- Institute of Population Health Sciences, National Health Research Institutes, Zhunan, Miaoli County, Taiwan
| | - Yi-Kai Chen
- Institute of Population Health Sciences, National Health Research Institutes, Zhunan, Miaoli County, Taiwan
| | - Hung-Yi Chiou
- Institute of Population Health Sciences, National Health Research Institutes, Zhunan, Miaoli County, Taiwan; School of Public Health, College of Public Health, Taipei Medical University, Taiwan; Master Program in Applied Epidemiology, College of Public Health, Taipei Medical University, Taiwan
| | - Huey-Kang Sytwu
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Taiwan
| | - Wei J Chen
- Center for Neuropsychiatric Research, National Health Research Institutes, Taiwan; Institute of Epidemiology and Preventive Medicine, College of Public Health, National Taiwan University, Taiwan.
| | - Hsiao-Hui Tsou
- Institute of Population Health Sciences, National Health Research Institutes, Zhunan, Miaoli County, Taiwan; Graduate Institute of Biostatistics, College of Public Health, China Medical University, Taiwan.
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Jiang WM, Wen TH, Huang YC, Chiou HY, Chen WJ, Hsiung CA, Sytwu HK, Tsou HH. Interregional mobility in different age groups is associated with COVID-19 transmission in the Taipei metropolitan area, Taiwan. Sci Rep 2023; 13:17285. [PMID: 37828352 PMCID: PMC10570333 DOI: 10.1038/s41598-023-44474-z] [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: 11/09/2022] [Accepted: 10/09/2023] [Indexed: 10/14/2023] Open
Abstract
Before vaccines were introduced, mobility restriction was one of the primary control measures in the early stage of the coronavirus disease 2019 (COVID-19) pandemic. Because different age groups face disproportionate health risks, differences in their mobility changes affect the effectiveness of pandemic control measures. This study aimed to investigate the relationship between multiscale mobility patterns in different age groups and COVID-19 transmission before and after control measures implementation. Data on daily confirmed case numbers, anonymized mobile phone data, and 38 socioeconomic factors were used to construct negative binomial regression models of these relationships in the Taipei metropolitan area in May 2021. To avoid overfitting, the socioeconomic factor dimensions were reduced by principal component analysis. The results showed that inter-district mobility was a greater promoter of COVID-19 transmission than was intra-district mobility (coefficients: pre-alert, 0.52 and 0.43; post-alert, 0.41 and 0.36, respectively). Moreover, both the inter-district mobility of people aged 15-59 and ≥ 60 years were significantly related to the number of confirmed cases (coefficients: pre-alert, 0.82 and 1.05; post-alert, 0.48 and 0.66, respectively). The results can help agencies worldwide formulate public health responses to emerging infectious diseases.
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Affiliation(s)
- Wei-Ming Jiang
- Institute of Population Health Sciences, National Health Research Institutes, 35 Keyan Road, Zhunan, 350, Miaoli County, Taiwan
| | - Tzai-Hung Wen
- Department of Geography, National Taiwan University, Taipei, Taiwan
| | - Ying-Chi Huang
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Zhunan, Miaoli County, Taiwan
| | - Hung-Yi Chiou
- Institute of Population Health Sciences, National Health Research Institutes, 35 Keyan Road, Zhunan, 350, Miaoli County, Taiwan
- School of Public Health, College of Public Health, Taipei Medical University, Taipei, Taiwan
- Master's Program in Applied Epidemiology, College of Public Health, Taipei Medical University, Taipei, Taiwan
| | - Wei J Chen
- Center for Neuropsychiatric Research, National Health Research Institutes, Zhunan, Miaoli County, Taiwan
- Institute of Epidemiology and Preventive Medicine, College of Public Health, National Taiwan University, Taipei, Taiwan
| | - Chao A Hsiung
- Institute of Population Health Sciences, National Health Research Institutes, 35 Keyan Road, Zhunan, 350, Miaoli County, Taiwan
| | - Huey-Kang Sytwu
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Zhunan, Miaoli County, Taiwan
| | - Hsiao-Hui Tsou
- Institute of Population Health Sciences, National Health Research Institutes, 35 Keyan Road, Zhunan, 350, Miaoli County, Taiwan.
- Graduate Institute of Biostatistics, College of Public Health, China Medical University, Taichung, Taiwan.
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Cheng C, Jiang WM, Fan B, Cheng YC, Hsu YT, Wu HY, Chang HH, Tsou HH. Real-time forecasting of COVID-19 spread according to protective behavior and vaccination: autoregressive integrated moving average models. BMC Public Health 2023; 23:1500. [PMID: 37553650 PMCID: PMC10408098 DOI: 10.1186/s12889-023-16419-8] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [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: 05/04/2023] [Accepted: 07/29/2023] [Indexed: 08/10/2023] Open
Abstract
BACKGROUND Mathematical and statistical models are used to predict trends in epidemic spread and determine the effectiveness of control measures. Automatic regressive integrated moving average (ARIMA) models are used for time-series forecasting, but only few models of the 2019 coronavirus disease (COVID-19) pandemic have incorporated protective behaviors or vaccination, known to be effective for pandemic control. METHODS To improve the accuracy of prediction, we applied newly developed ARIMA models with predictors (mask wearing, avoiding going out, and vaccination) to forecast weekly COVID-19 case growth rates in Canada, France, Italy, and Israel between January 2021 and March 2022. The open-source data was sourced from the YouGov survey and Our World in Data. Prediction performance was evaluated using the root mean square error (RMSE) and the corrected Akaike information criterion (AICc). RESULTS A model with mask wearing and vaccination variables performed best for the pandemic period in which the Alpha and Delta viral variants were predominant (before November 2021). A model using only past case growth rates as autoregressive predictors performed best for the Omicron period (after December 2021). The models suggested that protective behaviors and vaccination are associated with the reduction of COVID-19 case growth rates, with booster vaccine coverage playing a particularly vital role during the Omicron period. For example, each unit increase in mask wearing and avoiding going out significantly reduced the case growth rate during the Alpha/Delta period in Canada (-0.81 and -0.54, respectively; both p < 0.05). In the Omicron period, each unit increase in the number of booster doses resulted in a significant reduction of the case growth rate in Canada (-0.03), Israel (-0.12), Italy (-0.02), and France (-0.03); all p < 0.05. CONCLUSIONS The key findings of this study are incorporating behavior and vaccination as predictors led to accurate predictions and highlighted their significant role in controlling the pandemic. These models are easily interpretable and can be embedded in a "real-time" schedule with weekly data updates. They can support timely decision making about policies to control dynamically changing epidemics.
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Affiliation(s)
- Chieh Cheng
- Department of Life Science & Institute of Bioinformatics and Structural Biology, National Tsing Hua University, Hsinchu, Taiwan
| | - Wei-Ming Jiang
- Institute of Population Health Sciences, National Health Research Institutes, 35 Keyan Road, Zhunan, Miaoli County, 350, Taiwan
| | - Byron Fan
- Brown University, RI, Providence, USA
| | - Yu-Chieh Cheng
- Institute of Population Health Sciences, National Health Research Institutes, 35 Keyan Road, Zhunan, Miaoli County, 350, Taiwan
| | - Ya-Ting Hsu
- Institute of Population Health Sciences, National Health Research Institutes, 35 Keyan Road, Zhunan, Miaoli County, 350, Taiwan
| | - Hsiao-Yu Wu
- Institute of Population Health Sciences, National Health Research Institutes, 35 Keyan Road, Zhunan, Miaoli County, 350, Taiwan
| | - Hsiao-Han Chang
- Department of Life Science & Institute of Bioinformatics and Structural Biology, National Tsing Hua University, Hsinchu, Taiwan
| | - Hsiao-Hui Tsou
- Institute of Population Health Sciences, National Health Research Institutes, 35 Keyan Road, Zhunan, Miaoli County, 350, Taiwan.
- Graduate Institute of Biostatistics, College of Public Health, China Medical University, Taichung, Taiwan.
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Li HH, Su MP, Wu SC, Tsou HH, Chang MC, Cheng YC, Tsai KN, Wang HW, Chen GH, Tang CK, Chung PJ, Tsai WT, Huang LR, Yueh YA, Chen HW, Pan CY, Akbari OS, Chang HH, Yu GY, Marshall JM, Chen CH. Mechanical transmission of dengue virus by Aedes aegypti may influence disease transmission dynamics during outbreaks. EBioMedicine 2023; 94:104723. [PMID: 37487418 PMCID: PMC10382859 DOI: 10.1016/j.ebiom.2023.104723] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/30/2023] [Revised: 07/02/2023] [Accepted: 07/06/2023] [Indexed: 07/26/2023] Open
Abstract
BACKGROUND Dengue virus outbreaks are increasing in number and severity worldwide. Viral transmission is assumed to require a minimum time period of viral replication within the mosquito midgut. It is unknown if alternative transmission periods not requiring replication are possible. METHODS We used a mouse model of dengue virus transmission to investigate the potential of mechanical transmission of dengue virus. We investigated minimal viral titres necessary for development of symptoms in bitten mice and used resulting parameters to inform a new model of dengue virus transmission within a susceptible population. FINDINGS Naïve mice bitten by mosquitoes immediately after they took partial blood meals from dengue infected mice showed symptoms of dengue virus, followed by mortality. Incorporation of mechanical transmission into mathematical models of dengue virus transmission suggest that this supplemental transmission route could result in larger outbreaks which peak sooner. INTERPRETATION The potential of dengue transmission routes independent of midgut viral replication has implications for vector control strategies that target mosquito lifespan and suggest the possibility of similar mechanical transmission routes in other disease-carrying mosquitoes. FUNDING This study was funded by grants from the National Health Research Institutes, Taiwan (04D2-MMMOST02), the Human Frontier Science Program (RGP0033/2021), the National Institutes of Health (1R01AI143698-01A1, R01AI151004 and DP2AI152071) and the Ministry of Science and Technology, Taiwan (MOST104-2321-B-400-016).
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Affiliation(s)
- Hsing-Han Li
- National Mosquito-Borne Disease Control Research Center, NHRI, Miaoli, 350401, Taiwan; National Institute of Infectious Diseases and Vaccinology, NHRI, Miaoli, 350401, Taiwan; Division of Biological Sciences, Section of Cell and Developmental Biology, University of California, San Diego, La Jolla, CA, 92093, USA
| | - Matthew P Su
- Graduate School of Science, Nagoya University, Nagoya, 464-8602, Japan; Institute for Advanced Research, Nagoya University, Nagoya, 464-8601, Japan
| | - Shih-Cheng Wu
- National Mosquito-Borne Disease Control Research Center, NHRI, Miaoli, 350401, Taiwan; National Institute of Infectious Diseases and Vaccinology, NHRI, Miaoli, 350401, Taiwan; Department of Clinical Laboratory Sciences and Medical Biotechnology, College of Medicine, National Taiwan University, Taipei, 10048, Taiwan; Department of Laboratory Medicine, National Taiwan University Hospital, College of Medicine, National Taiwan University, Taipei, 10021, Taiwan
| | - Hsiao-Hui Tsou
- Institute of Population Health Sciences, National Health Research Institutes, Zhunan, Miaoli, 350401, Taiwan; Graduate Institute of Biostatistics, College of Public Health, China Medical University, Taichung, 40402, Taiwan
| | - Meng-Chun Chang
- Department of Life Science & Institute of Bioinformatics and Structural Biology, National Tsing Hua University, Hsinchu, Taiwan
| | - Yu-Chieh Cheng
- Institute of Population Health Sciences, National Health Research Institutes, Zhunan, Miaoli, 350401, Taiwan
| | - Kuen-Nan Tsai
- Institute of Molecular and Genomic Medicine, NHRI, Miaoli, 350401, Taiwan
| | - Hsin-Wei Wang
- National Mosquito-Borne Disease Control Research Center, NHRI, Miaoli, 350401, Taiwan; National Institute of Infectious Diseases and Vaccinology, NHRI, Miaoli, 350401, Taiwan
| | - Guan-Hua Chen
- National Institute of Infectious Diseases and Vaccinology, NHRI, Miaoli, 350401, Taiwan; Department of Biological Science and Technology, National Yang Ming Chiao Tung University, Hsinchu, 300, Taiwan
| | - Cheng-Kang Tang
- National Institute of Infectious Diseases and Vaccinology, NHRI, Miaoli, 350401, Taiwan; Program of Plant Protection and Health, Academy of Circular Economy, National Chung Hsing University, Taichung, 402202, Taiwan
| | - Pei-Jung Chung
- National Institute of Infectious Diseases and Vaccinology, NHRI, Miaoli, 350401, Taiwan
| | - Wan-Ting Tsai
- National Institute of Infectious Diseases and Vaccinology, NHRI, Miaoli, 350401, Taiwan
| | - Li-Rung Huang
- Institute of Molecular and Genomic Medicine, NHRI, Miaoli, 350401, Taiwan
| | - Yueh Andrew Yueh
- Institute of Biotechnology and Pharmaceutical Research, NHRI, Miaoli, 350401, Taiwan
| | - Hsin-Wei Chen
- National Institute of Infectious Diseases and Vaccinology, NHRI, Miaoli, 350401, Taiwan
| | - Chao-Ying Pan
- Department of Health, Kaohsiung City Government, Kaohsiung, 800852, Taiwan
| | - Omar S Akbari
- Division of Biological Sciences, Section of Cell and Developmental Biology, University of California, San Diego, La Jolla, CA, 92093, USA
| | - Hsiao-Han Chang
- Department of Life Science & Institute of Bioinformatics and Structural Biology, National Tsing Hua University, Hsinchu, Taiwan
| | - Guann-Yi Yu
- National Institute of Infectious Diseases and Vaccinology, NHRI, Miaoli, 350401, Taiwan
| | - John M Marshall
- Divisions of Biostatistics and Epidemiology, School of Public Health, University of California, Berkeley, CA, 94720, USA
| | - Chun-Hong Chen
- National Mosquito-Borne Disease Control Research Center, NHRI, Miaoli, 350401, Taiwan; National Institute of Infectious Diseases and Vaccinology, NHRI, Miaoli, 350401, Taiwan.
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Wu CC, Chen MS, Lee TY, Cheng YJ, Tsou HH, Huang TS, Cho DY, Chen JY. Screening and identification of emodin as an EBV DNase inhibitor to prevent its biological functions. Virol J 2023; 20:148. [PMID: 37443068 DOI: 10.1186/s12985-023-02107-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Accepted: 06/21/2023] [Indexed: 07/15/2023] Open
Abstract
BACKGROUND The Epstein-Barr virus (EBV) is a prevalent oncovirus associated with a variety of human illnesses. BGLF5, an EBV DNase with alkaline nuclease (AN) activity, plays important roles in the viral life cycle and progression of human malignancies and has been suggested as a possible diagnostic marker and target for cancer therapy. Methods used conventionally for the detection of AN activity, radioactivity-based nuclease activity assay and DNA digestion detection by gel electrophoresis, are not suitable for screening AN inhibitors; the former approach is unsafe, and the latter is complicated. In the present study, a fluorescence-based nuclease activity assay was used to screen several natural compounds and identify an EBV DNase inhibitor. RESULTS Fluorescence-based nuclease activity assays, in which the DNA substrate is labelled with PicoGreen dye, are cheaper, safer, and easier to perform. Herein, the results of the fluorescence-based nuclease activity assay were consistent with the results of the two conventional methods. In addition, the PicoGreen-labelling method was applied for the biochemical characterisation of viral nucleases. Using this approach, we explored EBV DNase inhibitors. After several rounds of screening, emodin, an anthraquinone derivative, was found to possess significant anti-EBV DNase activity. We verified the efficacy of emodin using the conventional DNA-cleavage assay. Furthermore, using comet assay and micronucleus formation detection, we confirmed that emodin can inhibit DNase-induced DNA damage and genomic instability. Additionally, emodin treatment inhibited EBV production. CONCLUSIONS Using a PicoGreen-mediated nuclease activity assay, we successfully demonstrated that emodin has the potential to inhibit EBV DNase nuclease activity. Emodin also inhibits EBV DNase-related biological functions, suggesting that it is a potential inhibitor of EBV DNase.
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Affiliation(s)
- Chung-Chun Wu
- Translational Cell Therapy Center, Department of Medical Research, China Medical University Hospital, No. 2, Yude Rd., North Dist, Taichung City, 40447, Taiwan.
| | - Mei-Shu Chen
- National Institute of Cancer Research, National Health Research Institutes, No.35, Keyan Road, Zhunan Town, Miaoli County, Taiwan
| | - Ting-Ying Lee
- Translational Cell Therapy Center, Department of Medical Research, China Medical University Hospital, No. 2, Yude Rd., North Dist, Taichung City, 40447, Taiwan
| | - Yu-Jhen Cheng
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Zhunan, Taiwan
| | - Hsiao-Hui Tsou
- Institute of Population Health Sciences, National Health Research Institutes, Zhunan, Taiwan
| | - Tze-Sing Huang
- National Institute of Cancer Research, National Health Research Institutes, No.35, Keyan Road, Zhunan Town, Miaoli County, Taiwan
| | - Der-Yang Cho
- Translational Cell Therapy Center, Department of Medical Research, China Medical University Hospital, No. 2, Yude Rd., North Dist, Taichung City, 40447, Taiwan
| | - Jen-Yang Chen
- National Institute of Cancer Research, National Health Research Institutes, No.35, Keyan Road, Zhunan Town, Miaoli County, Taiwan.
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Feng Zong J, Lin PJ, Tsou HH, Guo Q, Liu YC, Xu H, Twu CW, Zheng W, Jiang RS, Liang KL, Lin TY, Ji Pan J, Jun Lin S, Lin JC. Comparison the Acute Toxicity of Two Different Induction Chemotherapy Schedules with Cisplatin and Fluorouracil in Nasopharyngeal Carcinoma Patients. Radiother Oncol 2023; 184:109699. [PMID: 37169301 DOI: 10.1016/j.radonc.2023.109699] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Revised: 04/26/2023] [Accepted: 05/03/2023] [Indexed: 05/13/2023]
Abstract
PURPOSE To compare the acute toxicity of two different induction chemotherapy (IndCT) regimen followed by the same IMRT in patients with advanced nasopharyngeal carcinoma (NPC). MATERIALS AND METHODS From July 2015 to December 2016, 110 NPC patients with stage III-IV diseases were prospectively randomized to receive either a conventional triweekly cisplatin + 5-fluorouracil (PF) for 3 cycles or weekly P-F for 10 doses, followed by the same IMRT to both arms. The primary endpoints of this study were grade 3/4 and any grade acute toxicities during IndCT period. The secondary endpoints included tumor response and various survivals. RESULTS Baseline patient characteristics were comparable in both groups. Patients who received weekly P-F experienced significant reduction of grade 3/4 acute toxicities, including neutropenia (12.7% vs. 40.0%, P=0.0012), anorexia (0% vs. 14.6%, P=0.0059), mucositis (0% vs. 14.6%, P=0.0059), and hyponatremia (0% vs. 16.4%, P=0.0027), compared with the triweekly PF group, resulting in fewer IndCT interruptions (1.8% vs. 16.4%, P=0.0203), emergency room visits (0% vs. 12.7%, P=0.0128), and additional hospitalizations (0% vs. 9.1%, P=0.0568). The acute toxicities during IMRT period were similar. Weekly P-F arm had higher complete response rates (83.6% vs. 61.8%, P=0.0152) and lower relapse rates (16.4% vs. 33.3%, P=0.0402) after a median follow-up of 67 months. Kaplan-Meier survival analyses revealed a better trend of locoregional failure-free (P=0.0892), distant metastasis failure-free (P=0.0775), and progression-free (P=0.0709) survivals, favoring the weekly P-F arm. CONCLUSION IndCT of weekly schedule does reduce acute toxicities without compromised tumor response and survivals.
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Affiliation(s)
- Jing Feng Zong
- Departmentof Radiation Oncology, Fujian Medical University Cancer Hospital, Fujian Cancer Hospital, Fuzhou, China; FujianProvincial Key Laboratory of Translational Cancer Medicine, Fuzhou, China
| | - Po-Ju Lin
- Departmentof Radiation Oncology, Taichung Hospital, Ministry of Health and Welfare, Taichung, Taiwan
| | - Hsiao-Hui Tsou
- Instituteof Population Health Sciences, National Health Research Institutes, Miaoli, Taiwan; GraduateInstitute of Biostatistics, College of Public Health, China Medical University, Taichung, Taiwan
| | - Qiaojuan Guo
- Departmentof Radiation Oncology, Fujian Medical University Cancer Hospital, Fujian Cancer Hospital, Fuzhou, China; FujianProvincial Key Laboratory of Translational Cancer Medicine, Fuzhou, China
| | - Yi-Chun Liu
- Departmentof Radiation Oncology, Taichung Veterans General Hospital, Taichung, Taiwan; Institute of Clinical Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Hanchuan Xu
- Departmentof Radiation Oncology, Fujian Medical University Cancer Hospital, Fujian Cancer Hospital, Fuzhou, China; FujianProvincial Key Laboratory of Translational Cancer Medicine, Fuzhou, China
| | - Chih-Wen Twu
- Department of Otorhinolaryngology-Head and Neck Surgery, Changhua Christian Hospital, Changhua, Taiwan; Department of Post-Baccalaureate Medicine, College of Medicine, National Chung Hsing University, Taichung, Taiwan
| | - Wei Zheng
- Departmentof Radiation Oncology, Fujian Medical University Cancer Hospital, Fujian Cancer Hospital, Fuzhou, China; FujianProvincial Key Laboratory of Translational Cancer Medicine, Fuzhou, China
| | - Rong-San Jiang
- Department of Otorhinolaryngology-Head and Neck Surgery, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Kai-Li Liang
- Department of Otorhinolaryngology-Head and Neck Surgery, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Tian-Yun Lin
- Department of Otorhinolaryngology-Head and Neck Surgery, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Jian Ji Pan
- Departmentof Radiation Oncology, Fujian Medical University Cancer Hospital, Fujian Cancer Hospital, Fuzhou, China; FujianProvincial Key Laboratory of Translational Cancer Medicine, Fuzhou, China
| | - Shao Jun Lin
- Departmentof Radiation Oncology, Fujian Medical University Cancer Hospital, Fujian Cancer Hospital, Fuzhou, China; FujianProvincial Key Laboratory of Translational Cancer Medicine, Fuzhou, China.
| | - Jin-Ching Lin
- Departmentof Radiation Oncology, Taichung Veterans General Hospital, Taichung, Taiwan; Institute of Clinical Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan; Department of Post-Baccalaureate Medicine, College of Medicine, National Chung Hsing University, Taichung, Taiwan; Departmentof Radiation Oncology, Changhua Christian Hospital, Changhua, Taiwan.
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8
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Lin SH, Lan YT, Hsia PH, Kao CLM, Tsou HH, Lin YH. Internet searches for "insomnia" and "suicide" mediated by stay-at-home behaviors in 45 countries during the first 12 months of the COVID-19 pandemic. J Affect Disord 2023; 325:119-126. [PMID: 36621674 PMCID: PMC9815859 DOI: 10.1016/j.jad.2022.12.139] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/16/2022] [Revised: 12/08/2022] [Accepted: 12/25/2022] [Indexed: 01/07/2023]
Abstract
BACKGROUND This study aimed to investigate (1) the mental health impacts (i.e., insomnia and suicide ideas) of the COVID-19 pandemic and (2) the mediation effects of stay-at-home levels on those impacts. METHODS This study investigated monthly national COVID-19 deaths, stay-at-home levels, and internet searches for words for "insomnia" and "suicide" across 45 countries during the first year of the COVID-19 pandemic (March 1, 2020, to February 28, 2021). We used the changes of internet search volumes for "insomnia" and "suicide" (from the Google Trends database) to represent the mental health impacts, and the time of cell phone activity at the residence (from Google Location History) to estimate the stay-at-home effects. We computed the proportion mediated (PM) caused by stay-at-home levels in the COVID-19 impacts on insomnia and suicide ideas, respectively. RESULTS Throughout the first year of the COVID-19 pandemic, national COVID-19 deaths significantly correlated to increased internet searches for "insomnia" but decreased searches for "suicide". In addition, the mediation effect was significant in the first six-month of COVID-19-related increases in insomnia (PM = 42.6 %, p = 0.016), but this effect was not significant (PM = 13.1 %, p = 0.270) in the second six-month. By contrast, the mediation effect was not significant in the first six-month of COVID-19-related decrease in suicide ideation (PM = 8.1 %, p = 0.180), but this effect was significant (PM = 39.6 %, p = 0.014) in the second six-month. CONCLUSIONS Stay-at-home levels significantly mediated both increased insomnia and decreased suicide ideas, but within different time frames.
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Affiliation(s)
- Sheng-Hsuan Lin
- Institute of Statistics, National Yang Ming Chiao Tung University, Hsinchu, Taiwan,Institute of Data Science and Engineering, National Yang Ming Chiao Tung University, Hsinchu, Taiwan
| | - Yu-Tung Lan
- Department of Psychiatry and Behavioral Science, University of North Dakota School of Medicine and Health Sciences, Fargo, ND, USA
| | - Pei-Hsuan Hsia
- Institute of Statistics, National Yang Ming Chiao Tung University, Hsinchu, Taiwan
| | - Chu-Lan Michael Kao
- Institute of Statistics, National Yang Ming Chiao Tung University, Hsinchu, Taiwan
| | - Hsiao-Hui Tsou
- Institute of Population Health Sciences, National Health Research Institutes, Zhunan, Miaoli County, Taiwan
| | - Yu-Hsuan Lin
- Institute of Population Health Sciences, National Health Research Institutes, Zhunan, Miaoli County, Taiwan; Department of Psychiatry, National Taiwan University Hospital, Taipei, Taiwan; Department of Psychiatry, College of Medicine, National Taiwan University, Taipei, Taiwan; Institute of Health Behaviors and Community Sciences, College of Public Health, National Taiwan University, Taipei, Taiwan.
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9
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Bai LY, Li CP, Shan YS, Chuang SC, Chen JS, Chiang NJ, Chen YY, Tsou HH, Chuang MH, Chiu CF, Liu TW, Chen LT. A prospective phase II study of biweekly S-1, leucovorin, and gemcitabine in elderly patients with locally advanced or metastatic pancreatic adenocarcinoma - The Taiwan Cooperative Oncology Group T1217 study. Eur J Cancer 2022; 173:123-132. [PMID: 35932625 DOI: 10.1016/j.ejca.2022.06.043] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/05/2022] [Revised: 06/12/2022] [Accepted: 06/21/2022] [Indexed: 11/12/2022]
Abstract
BACKGROUND Elderly patients with advanced pancreatic adenocarcinoma (APC) are conceived to be frailer and susceptible to treatment toxicity that has led to disparity in lower likelihood of receiving chemotherapy and survival. Optimal chemotherapy is an unmet medical need for elderly patients with APC. PATIENTS AND METHODS Patients with chemo-naive APC, age ≥70 years, and Eastern Cooperative Oncology Group (ECOG) performance score ≤2 were eligible. The treatment was consisted of biweekly gemcitabine 800 mg/m2, 10 mg/m2/min infusion on day 1 plus oral S-1 and leucovorin (40-60 and 30 mg, respectively) twice daily on days 1-7, the GSL regimen. The primary end-point was progression-free survival with an interested P1 of 5.0 months. RESULTS Of the 49 enrolled patients, the median age was 76 years, ECOG performance score ≥1 in 59.2%, metastatic diseases in 65.3%, Vulnerable Elders Survey-13 score ≥3 in 71.4%, and Geriatric 8 score ≤14 in 93.9%. After a median 11 cycles of treatment, the overall response rate and disease control rate were 26.5% and 75.5%, respectively. The median progression-free and overall survivals were 6.6 months (95% confidence interval [CI], 5.4-9.2) and 12.5 months (95% CI, 8.9-14.7), respectively. The most common grade 3-4 treatment-related toxicities were anaemia (20.4%), neutropenia (18.4%), and mucositis (12.2%). Patients had improved emotional function and global health status scores during the GSL treatment. CONCLUSION The study met its primary end-point, which supports further investigation on the merit of GSL in Asian elderly APC patients.
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Affiliation(s)
- Li-Yuan Bai
- Division of Hematology and Oncology, Department of Internal Medicine, China Medical University Hospital, Taichung, 40402 Taiwan; College of Medicine, School of Medicine, China Medical University, Taichung, 40402 Taiwan
| | - Chung-Pin Li
- Division of Clinical Skills Training, Department of Medical Education, Taipei Veterans General Hospital, Taipei, Taiwan; Division of Gastroenterology and Hepatology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan; School of Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan
| | - Yan-Shen Shan
- Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan; Division of General Surgery, Department of Surgery, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan 704, Taiwan
| | - Shih-Chang Chuang
- Division of General and Digestive Surgery, Department of Surgery, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan; Department of Surgery, Faculty of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
| | - Jen-Shi Chen
- Division of Hematology-Oncology, Department of Internal Medicine, Linkou Chang Gung Memorial Hospital and Chang Gung University, Taoyuan, Taiwan
| | - Nai-Jung Chiang
- School of Medicine, College of Medicine, National Yang Ming Chiao Tung University, Taipei, Taiwan; Department of Oncology, Taipei Veterans General Hospital, Taipei, Taiwan; National Institute of Cancer Research, National Health Research Institutes, Tainan, Taiwan
| | - Yen-Yang Chen
- Division of Hematology-Oncology, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University, Kaohsiung, Taiwan
| | - Hsiao-Hui Tsou
- Institute of Population Health Sciences, National Health Research Institutes, Zhunan, Miaoli County, Taiwan; Graduate Institute of Biostatistics, College of Public Health, China Medical University, Taichung, Taiwan
| | - Mei-Hsing Chuang
- Institute of Population Health Sciences, National Health Research Institutes, Zhunan, Miaoli County, Taiwan
| | - Chang-Fang Chiu
- Division of Hematology and Oncology, Department of Internal Medicine, China Medical University Hospital, Taichung, 40402 Taiwan; College of Medicine, School of Medicine, China Medical University, Taichung, 40402 Taiwan; Cancer Center, China Medical University Hospital, Taichung, 40402 Taiwan
| | - Tsang-Wu Liu
- National Institute of Cancer Research, National Health Research Institutes, Tainan, Taiwan
| | - Li-Tzong Chen
- National Institute of Cancer Research, National Health Research Institutes, Tainan, Taiwan; Department of Internal Medicine, Kaohsiung Medical University Hospital, College of Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan; Center of Cancer Research, Kaohsiung Medical University, Kaohsiung, Taiwan; Department of Oncology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan.
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10
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Chou YC, Tsou HH, Chan DCD, Wen CJ, Lu FP, Lin KP, Wu MC, Chen YM, Chen JH. Validation of clinical frailty scale in Chinese translation. BMC Geriatr 2022; 22:604. [PMID: 35858829 PMCID: PMC9298166 DOI: 10.1186/s12877-022-03287-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2022] [Accepted: 07/01/2022] [Indexed: 11/10/2022] Open
Abstract
BACKGROUND Identification of frailty is crucial to guide patient care for the elderly. The Clinical Frailty Scale (CFS) is a reliable, synthesis and clinical judgment-based tool. However, a validated Chinese version of CFS (CFS-C) is lacking. The aim of this study is to describe the translation process of CFS into traditional Chinese and to evaluate its reliability and validity in a geriatric study population in Taiwan. METHODS This cross-sectional study recruited 221 geriatric outpatients aged 65 years or older at a medical center in Taipei, Taiwan. The Chinese version of CFS was produced following Brislin's translation model. Weighted kappa for agreement and Kendall's tau for correlation were used to assess inter-rater reliability (a subgroup of 52 outpatients) between geriatricians and one research assistant, and validity tests (221 outpatients) by comparing CFS-C with Fried frailty phenotype and Frailty Index based on Comprehensive Geriatric Assessment (FI-CGA). Correlation between CFS-C and other geriatric conditions were also assessed. RESULTS The inter-rater reliability revealed moderate agreement (weighted kappa = 0.60) and strong correlation (Kendall's tau = 0.67). For criterion validity, CFS-C categorisation showed fair agreement (weighted kappa = 0.37) and significant correlation (Kendall's tau = 0.46) with Fried frailty phenotype, and higher agreement (weighted kappa = 0.51) and correlation (Kendall's tau = 0.63) with FI-CGA categorisation. CFS-C was significantly correlated with various geriatric assessments, including functional disability, physical performance, hand grip, comorbidity, cognition, depression, and nutrition status. No significant correlation was found between CFS-C and appendicular muscle mass. CONCLUSIONS The CFS-C demonstrated acceptable validity and reliability in Chinese older adults in Taiwan. Development of CFS-C enhanced consistency and accuracy of frailty assessment, both in research and clinical practice.
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Affiliation(s)
- Yi-Chun Chou
- Department of Geriatrics and Gerontology, National Taiwan University Hospital, No.7, Chung Shan South Road, Taipei, 100, Taiwan
| | - Hsiao-Hui Tsou
- Institute of Population Health Sciences, National Health Research Institutes, 35 Keyan Road, Zhunan, Miaoli County, 350, Taiwan
| | - Ding-Cheng Derrick Chan
- Department of Geriatrics and Gerontology, National Taiwan University Hospital, No.7, Chung Shan South Road, Taipei, 100, Taiwan.,Department of Internal Medicine, College of Medicine, National Taiwan University, No.1, Jen Ai Road Section 1, Taipei, 100, Taiwan
| | - Chiung-Jung Wen
- Department of Geriatrics and Gerontology, National Taiwan University Hospital, No.7, Chung Shan South Road, Taipei, 100, Taiwan.,Department of Family Medicine, College of Medicine, National Taiwan University, No.1, Jen Ai Road Section 1, Taipei, 100, Taiwan
| | - Feng-Ping Lu
- Department of Geriatrics and Gerontology, National Taiwan University Hospital, No.7, Chung Shan South Road, Taipei, 100, Taiwan.,Department of Internal Medicine, College of Medicine, National Taiwan University, No.1, Jen Ai Road Section 1, Taipei, 100, Taiwan
| | - Kun-Pei Lin
- Department of Geriatrics and Gerontology, National Taiwan University Hospital, No.7, Chung Shan South Road, Taipei, 100, Taiwan.,Department of Internal Medicine, College of Medicine, National Taiwan University, No.1, Jen Ai Road Section 1, Taipei, 100, Taiwan
| | - Meng-Chen Wu
- Department of Geriatrics and Gerontology, National Taiwan University Hospital, No.7, Chung Shan South Road, Taipei, 100, Taiwan.,Department of Neurology, National Taiwan University Hospital, No.7, Chung Shan South Road, Taipei, 100, Taiwan
| | - Yung-Ming Chen
- Department of Internal Medicine, College of Medicine, National Taiwan University, No.1, Jen Ai Road Section 1, Taipei, 100, Taiwan.,Superintendent Office, National Taiwan University Hospital Bei-Hu Branch, No. 87, Neijiang Street, Taipei, 108, Taiwan
| | - Jen-Hau Chen
- Department of Geriatrics and Gerontology, National Taiwan University Hospital, No.7, Chung Shan South Road, Taipei, 100, Taiwan. .,Department of Internal Medicine, College of Medicine, National Taiwan University, No.1, Jen Ai Road Section 1, Taipei, 100, Taiwan.
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11
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Twu CW, Lin PJ, Tsou HH, Liu YC, Jiang RS, Liang KL, Lin TY, Wang WY, Lin JC. Maintenance metronomic chemotherapy for metastatic/recurrent nasopharyngeal carcinoma. Head Neck 2022; 44:1453-1461. [PMID: 35362634 DOI: 10.1002/hed.27044] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/17/2021] [Revised: 01/02/2022] [Accepted: 03/22/2022] [Indexed: 01/12/2023] Open
Abstract
BACKGROUND We investigated the survival impact and toxicity of maintenance metronomic chemotherapy in patients with metastatic/recurrent nasopharyngeal carcinoma (met/rec NPC). METHODS Ninety-eight patients with met/rec NPC were first salvaged by IV cisplatin-based chemotherapy and showed nonprogression disease; then maintenance metronomic chemotherapy for at least 12 months was recommended. We analyzed the treatment outcome between patients who received (n = 51) and did not receive (n = 47) maintenance chemotherapy. RESULTS Baseline patient characteristics showed no significant differences between both arms. Median overall survival for patients with and without maintenance chemotherapy was 36.0 and 12.3 months, respectively (p < 0.0001). Similarly, median progression-free survival was 24.7 and 7.3 months, respectively (p < 0.0001). Furthermore, toxicities during maintenance oral chemotherapy period were usually mild. Transient grade 3 leucopenia (9.8%), anemia (3.9%), thrombocytopenia (7.8%), and no grade 4 toxicity were observed. CONCLUSION After IV salvage chemotherapy, maintenance oral metronomic chemotherapy significantly improved overall and progression-free survivals while demonstrating low toxicity in patients with met/rec NPC.
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Affiliation(s)
- Chih-Wen Twu
- Department of Otorhinolaryngology - Head and Neck Surgery, Changhua Christian Hospital, Changhua, Taiwan.,College of Medicine, National Chung Hsing University, Taichung, Taiwan
| | - Po-Ju Lin
- Department of Radiation Oncology, Changhua Christian Hospital, Changhua, Taiwan
| | - Hsiao-Hui Tsou
- Institute of Population Health Sciences, National Health Research Institutes, Miaoli, Taiwan.,Graduate Institute of Biostatistics, College of Public Health, China Medical University, Taichung, Taiwan
| | - Yi-Chun Liu
- Department of Radiation Oncology, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Rong-San Jiang
- Department of Otorhinolaryngology - Head and Neck Surgery, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Kai-Li Liang
- Department of Otorhinolaryngology - Head and Neck Surgery, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Tian-Yun Lin
- Department of Otorhinolaryngology - Head and Neck Surgery, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Wen-Yi Wang
- Department of Nursing, Hung Kuang University, Taichung, Taiwan
| | - Jin-Ching Lin
- Department of Radiation Oncology, Changhua Christian Hospital, Changhua, Taiwan.,Department of Radiation Oncology, Taichung Veterans General Hospital, Taichung, Taiwan.,Institute of Clinical Medicine, School of Medicine, National Yang-Ming Chiao-Tung University, Taipei, Taiwan
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12
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Tsou HH, Kuo SC, Lin YH, Hsiung CA, Chiou HY, Chen WJ, Wu SI, Sytwu HK, Chen PC, Wu MH, Hsu YT, Wu HY, Lee FJ, Shih SM, Liu DP, Chang SC. A comprehensive evaluation of COVID-19 policies and outcomes in 50 countries and territories. Sci Rep 2022; 12:8802. [PMID: 35614332 PMCID: PMC9130690 DOI: 10.1038/s41598-022-12853-7] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Accepted: 05/17/2022] [Indexed: 11/09/2022] Open
Abstract
The COVID-19 pandemic struck the world unguarded, some places outperformed others in COVID-19 containment. This longitudinal study considered a comparative evaluation of COVID-19 containment across 50 distinctly governed regions between March 2020 and November 2021. Our analysis distinguishes between a pre-vaccine phase (March–November 2020) and a vaccinating phase (December 2020–November 2021). In the first phase, we develop an indicator, termed lockdown efficiency (LE), to estimate the efficacy of measures against monthly case numbers. Nine other indicators were considered, including vaccine-related indicators in the second phase. Linear mixed models are used to explore the relationship between each government policy & hygiene education (GP&HE) indicator and each vital health & socioeconomic (VH&SE) measure. Our ranking shows that surveyed countries in Oceania and Asian outperformed countries in other regions for pandemic containment prior to vaccine development. Their success appears to be associated with non-pharmaceutical interventions, acting early, and adjusting policies as needed. After vaccines have been distributed, maintaining non-pharmacological intervention is the best way to achieve protection from variant viral strains, breakthrough infections, waning vaccine efficacy, and vaccine hesitancy limiting of herd immunity. The findings of the study provide insights into the effectiveness of emerging infectious disease containment policies worldwide.
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Affiliation(s)
- Hsiao-Hui Tsou
- Institute of Population Health Sciences, National Health Research Institutes, 35 Keyan Road, Zhunan, Miaoli County, 350, Taiwan. .,Graduate Institute of Biostatistics, College of Public Health, China Medical University, Taichung, Taiwan.
| | - Shu-Chen Kuo
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Zhunan, Miaoli County, Taiwan
| | - Yu-Hsuan Lin
- Institute of Population Health Sciences, National Health Research Institutes, 35 Keyan Road, Zhunan, Miaoli County, 350, Taiwan.,Department of Psychiatry, National Taiwan University Hospital, Taipei, Taiwan.,Department of Psychiatry, College of Medicine, National Taiwan University, Taipei, Taiwan.,Institute of Health Behaviors and Community Sciences, College of Public Health, National Taiwan University, Taipei, Taiwan
| | - Chao A Hsiung
- Institute of Population Health Sciences, National Health Research Institutes, 35 Keyan Road, Zhunan, Miaoli County, 350, Taiwan
| | - Hung-Yi Chiou
- Institute of Population Health Sciences, National Health Research Institutes, 35 Keyan Road, Zhunan, Miaoli County, 350, Taiwan.,School of Public Health, College of Public Health, Taipei Medical University, Taipei, Taiwan.,Master's Program in Applied Epidemiology, College of Public Health, Taipei Medical University, Taipei, Taiwan
| | - Wei J Chen
- Center for Neuropsychiatric Research, National Health Research Institutes, Zhunan, Miaoli County, Taiwan.,Institute of Epidemiology and Preventive Medicine, College of Public Health, National Taiwan University, Taipei, Taiwan
| | - Shiow-Ing Wu
- Institute of Population Health Sciences, National Health Research Institutes, 35 Keyan Road, Zhunan, Miaoli County, 350, Taiwan
| | - Huey-Kang Sytwu
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Zhunan, Miaoli County, Taiwan
| | - Pau-Chung Chen
- National Institute of Environmental Health Sciences, National Health Research Institutes, Zhunan, Miaoli County, Taiwan.,Institute of Environmental and Occupational Health Sciences, National Taiwan University College of Public Health, Taipei, Taiwan.,Department of Public Health, National Taiwan University College of Public Health, Taipei, Taiwan.,Department of Environmental and Occupational Medicine, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
| | - Meng-Hsuan Wu
- Institute of Population Health Sciences, National Health Research Institutes, 35 Keyan Road, Zhunan, Miaoli County, 350, Taiwan
| | - Ya-Ting Hsu
- Institute of Population Health Sciences, National Health Research Institutes, 35 Keyan Road, Zhunan, Miaoli County, 350, Taiwan
| | - Hsiao-Yu Wu
- Institute of Population Health Sciences, National Health Research Institutes, 35 Keyan Road, Zhunan, Miaoli County, 350, Taiwan
| | - Fang-Jing Lee
- National Mosquito-Borne Diseases Control Research Center, National Health Research Institutes, Zhunan, Miaoli County, Taiwan
| | - Shu-Man Shih
- Institute of Population Health Sciences, National Health Research Institutes, 35 Keyan Road, Zhunan, Miaoli County, 350, Taiwan
| | - Ding-Ping Liu
- Taiwan Centers for Disease Control, Taipei, Taiwan.,Department of Health Care Management, National Taipei University of Nursing and Health Sciences, Taipei, Taiwan
| | - Shan-Chwen Chang
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
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13
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Kong PH, Chiang CH, Lin TC, Kuo SC, Li CF, Hsiung CA, Shiue YL, Chiou HY, Wu LC, Tsou HH. Discrimination of Methicillin-resistant Staphylococcus aureus by MALDI-TOF Mass Spectrometry with Machine Learning Techniques in Patients with Staphylococcus aureus Bacteremia. Pathogens 2022; 11:pathogens11050586. [PMID: 35631107 PMCID: PMC9143686 DOI: 10.3390/pathogens11050586] [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] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2022] [Revised: 05/11/2022] [Accepted: 05/13/2022] [Indexed: 11/29/2022] Open
Abstract
Early administration of proper antibiotics is considered to improve the clinical outcomes of Staphylococcus aureus bacteremia (SAB), but routine clinical antimicrobial susceptibility testing takes an additional 24 h after species identification. Recent studies elucidated matrix-assisted laser desorption/ionization time-of-flight mass spectra to discriminate methicillin-resistant strains (MRSA) or even incorporated with machine learning (ML) techniques. However, no universally applicable mass peaks were revealed, which means that the discrimination model might need to be established or calibrated by local strains’ data. Here, a clinically feasible workflow was provided. We collected mass spectra from SAB patients over an 8-month duration and preprocessed by binning with reference peaks. Machine learning models were trained and tested by samples independently of the first six months and the following two months, respectively. The ML models were optimized by genetic algorithm (GA). The accuracy, sensitivity, specificity, and AUC of the independent testing of the best model, i.e., SVM, under the optimal parameters were 87%, 75%, 95%, and 87%, respectively. In summary, almost all resistant results were truly resistant, implying that physicians might escalate antibiotics for MRSA 24 h earlier. This report presents an attainable method for clinical laboratories to build an MRSA model and boost the performance using their local data.
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Affiliation(s)
- Po-Hsin Kong
- Institute of Biomedical Sciences, National Sun Yat-sen University, Kaohsiung 80424, Taiwan; (P.-H.K.); (Y.-L.S.)
- Center for Precision Medicine, Chi Mei Medical Center, Tainan 71004, Taiwan;
| | - Cheng-Hsiung Chiang
- Institute of Population Health Sciences, National Health Research Institutes, Zhunan, Miaoli 35053, Taiwan; (C.-H.C.); (C.A.H.); (H.-Y.C.)
| | - Ting-Chia Lin
- Center for Precision Medicine, Chi Mei Medical Center, Tainan 71004, Taiwan;
- Institute of Precision Medicine, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
| | - Shu-Chen Kuo
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Zhunan, Miaoli 35053, Taiwan;
| | - Chien-Feng Li
- Department of Medical Research, Chi Mei Medical Center, Tainan 71004, Taiwan;
| | - Chao A. Hsiung
- Institute of Population Health Sciences, National Health Research Institutes, Zhunan, Miaoli 35053, Taiwan; (C.-H.C.); (C.A.H.); (H.-Y.C.)
| | - Yow-Ling Shiue
- Institute of Biomedical Sciences, National Sun Yat-sen University, Kaohsiung 80424, Taiwan; (P.-H.K.); (Y.-L.S.)
- Institute of Precision Medicine, National Sun Yat-sen University, Kaohsiung 80424, Taiwan
| | - Hung-Yi Chiou
- Institute of Population Health Sciences, National Health Research Institutes, Zhunan, Miaoli 35053, Taiwan; (C.-H.C.); (C.A.H.); (H.-Y.C.)
- School of Public Health, College of Public Health, Taipei Medical University, Taipei 11031, Taiwan
- Master’s Program in Applied Epidemiology, College of Public Health, Taipei Medical University, Taipei 11031, Taiwan
| | - Li-Ching Wu
- Institute of Biomedical Sciences, National Sun Yat-sen University, Kaohsiung 80424, Taiwan; (P.-H.K.); (Y.-L.S.)
- Center for Precision Medicine, Chi Mei Medical Center, Tainan 71004, Taiwan;
- Correspondence: (L.-C.W.); (H.-H.T.)
| | - Hsiao-Hui Tsou
- Institute of Population Health Sciences, National Health Research Institutes, Zhunan, Miaoli 35053, Taiwan; (C.-H.C.); (C.A.H.); (H.-Y.C.)
- Graduate Institute of Biostatistics, College of Public Health, China Medical University, Taichung 40402, Taiwan
- Correspondence: (L.-C.W.); (H.-H.T.)
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14
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Bai LY, Li CP, Shan YS, Chuang SC, Chen JS, Chiang NJ, Chen YY, Tsou HH, Chuang MH, Chiu CF, Liu TW, Chen LT. A prospective phase II study of biweekly S-1, leucovorin and gemcitabine in elderly patients with locally advanced or metastatic pancreatic adenocarcinoma. J Clin Oncol 2022. [DOI: 10.1200/jco.2022.40.4_suppl.550] [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: 11/20/2022] Open
Abstract
550 Background: A chemotherapeutic regimen for elderly patients with advanced pancreatic cancer is necessary because of the considerable toxicities associated with current standard regimens. A modified combination of gemcitabine, S-1, and leucovorin (GSL) was used as a first-line treatment for elderly patients with newly diagnosed locally advanced or metastatic pancreatic adenocarcinoma in a prospective, phase II, multicenter clinical trial (NCT03559348). Methods: Patients more than 70 years of age with ECOG performance status score 0-2 were treated with GSL. GSL was administered every 2 weeks, intravenous gemcitabine 800 mg/m2 at a fixed-dose rate of 10 mg/m2/min on day 1 and oral S-1 (80-120 mg/day) plus leucovorin 30 mg twice daily on days 1-7, until disease progression, withdrawal, or intolerable toxicities. The primary endpoint was progression-free survival (PFS). Results: Overall, 49 patients were enrolled into the trial between 10 July, 2018 and 25 March, 2020, with a median follow-up of 12.5 months. The data cut-off point was on 15 June, 2021. The median patient age at diagnosis was 76 years (range, 70–87 years), and thirty-two (65.3%) patients had metastatic lesions before GSL treatment. Patient frailty was evidenced by the Vulnerable Elders Survey (VES)-13 score (median 5, range 0-13) and Geriatric 8 (G8) score (median 10.5, range 3-15) at baseline. Among the 44 evaluable patients, 13 demonstrated a partial response (29.5%) and 24 presented with stable disease (54.5%). The median PFS was 6.6, 6.6, and 6.3 months, and OS was 12.5, 12.7, and 11.6 months for total population, patients with locally advanced disease, and patients with metastatic lesions, respectively. Patients had improved emotional function and global health status score during GSL treatment. The most frequent grade 3 or higher treatment-related toxicities included anemia (20.4%), decreased neutrophils (18.4%), decreased white blood cells (16.3%), and oral mucositis (12.2%). Conclusions: The GSL regimen results in impressive efficacy with tolerable toxicity in this group of frail patients. In addition, quality of life can be maintained during the treatment. GSL could be a treatment of choice for elderly patients with locally advanced or metastatic pancreatic cancer. Clinical trial information: NCT03559348.
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Affiliation(s)
- Li-Yuan Bai
- China Medical University Hospital, China Medical University, Taichung, Taiwan
| | - Chung-Pin Li
- Taipei Veterans General Hospital, Taipei, Taiwan
| | - Yan-Shen Shan
- Distinguished Professor and Attending Surgeon, College of Medicine, NCKU and NCKUH, Tainan, Taiwan
| | - Shih-Chang Chuang
- Division of General and Digestive Surgery, Department of Surgery, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Jen-Shi Chen
- Linkou Chang Gung Memorial Hospital and Chang Gung University, Taoyuan, Taiwan
| | - Nai-Jung Chiang
- National Institute of Cancer Research, National Health Research Institutes, Tainan, Taiwan
| | - Yen-Yang Chen
- Division of Hematology-Oncology, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung, Taiwan
| | | | - Mei-Hsing Chuang
- Institute of Population Health Sciences, National Health Research Institutes, Zhunan, Taiwan
| | | | - Tsang-Wu Liu
- Taiwan Cooperative Oncology Group, National Health Research Institutes, Taipei, Taiwan
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15
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Abstract
In Taiwan, lower nonpolio enterovirus activity during the coronavirus disease pandemic in 2020 compared with 2014-2019 might be attributable to adherence to nonpharmaceutical interventions. The preventable fraction among unexposed persons indicated that 90% of nonpolio enterovirus activity might have been prevented during 2014-2019 by adopting the same measures enforced in 2020.
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16
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Cheng YC, Lee FJ, Hsu YT, Slud EV, Hsiung CA, Chen CH, Liao CL, Wen TH, Chang CW, Chang JH, Wu HY, Chang TP, Lin PS, Ho HP, Hung WF, Chou JD, Tsou HH. Real-time dengue forecast for outbreak alerts in Southern Taiwan. PLoS Negl Trop Dis 2020; 14:e0008434. [PMID: 32716983 PMCID: PMC7384612 DOI: 10.1371/journal.pntd.0008434] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/24/2019] [Accepted: 05/29/2020] [Indexed: 11/18/2022] Open
Abstract
Dengue fever is a viral disease transmitted by mosquitoes. In recent decades, dengue fever has spread throughout the world. In 2014 and 2015, southern Taiwan experienced its most serious dengue outbreak in recent years. Some statistical models have been established in the past, however, these models may not be suitable for predicting huge outbreaks in 2014 and 2015. The control of dengue fever has become the primary task of local health agencies. This study attempts to predict the occurrence of dengue fever in order to achieve the purpose of timely warning. We applied a newly developed autoregressive model (AR model) to assess the association between daily weather variability and daily dengue case number in 2014 and 2015 in Kaohsiung, the largest city in southern Taiwan. This model also contained additional lagged weather predictors, and developed 5-day-ahead and 15-day-ahead predictive models. Our results indicate that numbers of dengue cases in Kaohsiung are associated with humidity and the biting rate (BR). Our model is simple, intuitive and easy to use. The developed model can be embedded in a "real-time" schedule, and the data (at present) can be updated daily or weekly based on the needs of public health workers. In this study, a simple model using only meteorological factors performed well. The proposed real-time forecast model can help health agencies take public health actions to mitigate the influences of the epidemic. Meteorological conditions are the most frequently mentioned factors in the study of dengue fever. Some of the main factors other than the purely meteorological about which the public-health authorities might have data, such as numbers of cases or other current measurements of dengue outbreaks in neighboring cities, had been used in some of the past dengue studies. In this study, we developed models for predicting dengue case number based on past dengue case data and meteorological data. The goal of the models is to provide early warning of the occurrence of dengue fever to assist public health agencies in preparing an epidemic response plan.
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Affiliation(s)
- Yu-Chieh Cheng
- Division of Biostatistics and Bioinformatics, Institute of Population Health Sciences, National Health Research Institutes, Miaoli County, Taiwan
| | - Fang-Jing Lee
- National Mosquito-Borne Diseases Control Research Center, National Health Research Institutes, Miaoli County, Taiwan
| | - Ya-Ting Hsu
- Division of Biostatistics and Bioinformatics, Institute of Population Health Sciences, National Health Research Institutes, Miaoli County, Taiwan
| | - Eric V. Slud
- Department of Mathematics, University of Maryland, College Park, Maryland, United States of America
| | - Chao A. Hsiung
- Division of Biostatistics and Bioinformatics, Institute of Population Health Sciences, National Health Research Institutes, Miaoli County, Taiwan
| | - Chun-Hong Chen
- National Mosquito-Borne Diseases Control Research Center, National Health Research Institutes, Miaoli County, Taiwan
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Miaoli County, Taiwan
| | - Ching-Len Liao
- National Mosquito-Borne Diseases Control Research Center, National Health Research Institutes, Miaoli County, Taiwan
- National Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Miaoli County, Taiwan
| | - Tzai-Hung Wen
- Department of Geography, National Taiwan University, Taipei, Taiwan
| | - Chiu-Wen Chang
- Department of Health, Kaohsiung City Government, Kaohsiung City, Taiwan
| | - Jui-Hun Chang
- Environmental Protection Bureau, Kaohsiung City Government, Kaohsiung City, Taiwan
| | - Hsiao-Yu Wu
- Division of Biostatistics and Bioinformatics, Institute of Population Health Sciences, National Health Research Institutes, Miaoli County, Taiwan
| | - Te-Pin Chang
- National Mosquito-Borne Diseases Control Research Center, National Health Research Institutes, Miaoli County, Taiwan
| | - Pei-Sheng Lin
- Division of Biostatistics and Bioinformatics, Institute of Population Health Sciences, National Health Research Institutes, Miaoli County, Taiwan
| | - Hui-Pin Ho
- Department of Health, Kaohsiung City Government, Kaohsiung City, Taiwan
| | - Wen-Feng Hung
- Soil and groundwater pollution remediation center, CPC Corporation, Taiwan
| | - Jing-Dong Chou
- Environmental Protection Bureau, Kaohsiung City Government, Kaohsiung City, Taiwan
| | - Hsiao-Hui Tsou
- Division of Biostatistics and Bioinformatics, Institute of Population Health Sciences, National Health Research Institutes, Miaoli County, Taiwan
- Graduate Institute of Biostatistics, College of Public Health, China Medical University, Taichung, Taiwan
- * E-mail:
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17
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Fang CP, Liu TH, Chung RH, Tsou HH, Kuo HW, Wang SC, Liu CC, Liu SC, Chen ACH, Liu YL. Genetic variants in NECTIN4 encoding an adhesion molecule are associated with continued opioid use. PLoS One 2020; 15:e0234549. [PMID: 32555608 PMCID: PMC7302666 DOI: 10.1371/journal.pone.0234549] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/29/2019] [Accepted: 05/28/2020] [Indexed: 01/17/2023] Open
Abstract
Methadone is a synthetic opioid used as maintenance treatment for patients addicted to heroin. Skin irritation is one of the adverse events caused by opioid use. 344 methadone maintenance treatment (MMT) patients were recruited with records and measurements on methadone dose, plasma methadone concentrations, and treatment emergent symptom scales (TESS). 15 patients reported with skin irritation. Five SNPs located within the NECTIN4 genetic region were genotyped. The NECTIN4 gene within the adherens junction interaction pathway was associated with methadone dose in pathway-based genome wide association analyses (P = 0.0008). Three highly-linked SNPs, rs11265549, rs3820097, and rs4656978, were significantly associated with methadone dose (P = 0.0003), plasma concentrations of R,S-methadone (P = 0.0004) and TNF-α (P = 0.010) in all 344 MMT patients, and with self-report skin irritation symptom scores (P = 0.010) in the 15 MMT patients who reported with skin irritation. To identify the possible roles of plasma level of Nectin-4 in the responses to MMT and opioid use, additional age- and gender-matched 51 controls and 83 methadone-free abstinent former heroin users were recruited. Plasma level of Nectin-4 was the highest in MMT patients among the three groups. The results suggest involvement of genetic variants on NECTIN4 in methadone dose. Plasma Nectin-4 level is likely an indicator for continued use of opioids.
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Affiliation(s)
- Chiu-Ping Fang
- Center for Neuropsychiatric Research, National Health Research Institutes, Zhunan, Miaoli County, Taiwan
| | - Tung-Hsia Liu
- Center for Neuropsychiatric Research, National Health Research Institutes, Zhunan, Miaoli County, Taiwan
| | - Ren-Hua Chung
- Division of Biostatistics and Bioinformatics, Institute of Population Health Sciences, National Health Research Institutes, Miaoli County, Taiwan
| | - Hsiao-Hui Tsou
- Division of Biostatistics and Bioinformatics, Institute of Population Health Sciences, National Health Research Institutes, Miaoli County, Taiwan
- Graduate Institute of Biostatistics, China Medical University, Taichung, Taiwan
| | - Hsiang-Wei Kuo
- Center for Neuropsychiatric Research, National Health Research Institutes, Zhunan, Miaoli County, Taiwan
| | - Sheng-Chang Wang
- Center for Neuropsychiatric Research, National Health Research Institutes, Zhunan, Miaoli County, Taiwan
| | - Chia-Chen Liu
- Center for Neuropsychiatric Research, National Health Research Institutes, Zhunan, Miaoli County, Taiwan
| | - Shu Chih Liu
- Center for Neuropsychiatric Research, National Health Research Institutes, Zhunan, Miaoli County, Taiwan
| | - Andrew C. H. Chen
- Department of Psychiatry, the Zucker Hillside Hospital, Northwell Health, Glen Oaks, New York, United States of America
- The Feinstein Institute for Medical Research, Hofstra Northwell School of Medicine at Hofstra University, Manhasset, New York, United States of America
| | - Yu-Li Liu
- Center for Neuropsychiatric Research, National Health Research Institutes, Zhunan, Miaoli County, Taiwan
- Graduate Institute of Clinical Medical Science, China Medical University, Taichung, Taiwan
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18
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Lin TY, Lan MY, Tsou HH, Ho CY, Twu CW, Liu YC, Lin PJ, Huang PI, Shiau CY, Lin JC. Survival impacts of different nodal characteristics and T-classification in N3 nasopharyngeal carcinoma patients. Oral Oncol 2020; 108:104820. [PMID: 32531741 DOI: 10.1016/j.oraloncology.2020.104820] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/30/2020] [Revised: 05/14/2020] [Accepted: 05/23/2020] [Indexed: 01/16/2023]
Abstract
OBJECTIVES We investigated the survival impacts of various nodal characteristics and T-classification on nasopharyngeal carcinoma (NPC) patients with the 8th AJCC/UICC staging criteria N3. MATERIALS AND METHODS Pretreatment MRIs from 110 staged N3 NPC patients were reviewed. There were 23 T1, 25 T2, 32 T3, and 30 T4, respectively. All except one patient belonged to WHO type II pathology. All patients received curative radiotherapy 68.0-76.8 Gy plus different chemotherapy, including induction, concurrent, adjuvant or any combination. Various endpoints, including OS (overall survival), DFS (disease-free survival), LRFFS (locoregional failure-free survival), DMFFS (distant metastasis failure-free survival) were compared between different nodal characteristics and T-classification. RESULTS There were no statistically significant differences in all analyzed survival curves between various nodal characteristics, including unilateral N3 vs. bilateral N3, "large" nodes (>6 cm) alone vs. "low" nodes (below the caudal border of cricoid cartilage) alone vs. combined "large" and "low" nodes, risk score 1 vs. 2 vs. 3 vs. 4 (by counting the sum of "large" and "low" nodes in the same case), and radiologic extra-nodal extension. Patients with T4, compared with those of T1-3 have worse OS (5-year rates, 42.2% vs. 82.8%, P < 0.0001), DFS (5-year rates, 43.9% vs. 68.9%, P = 0.0037), LRFFS (5-year rates, 69.3% vs. 82.7%, P = 0.0432), and DMFFS (5-year rates, 57.2% vs. 77.7%, P = 0.0163). CONCLUSIONS Our results support merging previous N3a and N3b as a N3 category in the 8th edition new staging system. Patients with T4N3 diseases have extremely poor outcome and deserve to strengthen the treatment intensity in future trials.
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Affiliation(s)
- Tian-Yun Lin
- Department of Otorhinolaryngology-Head and Neck Surgery, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Ming-Ying Lan
- Department of Otorhinolaryngology-Head and Neck Surgery, Taipei Veterans General Hospital, Taipei, Taiwan; Faculty of Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Hsiao-Hui Tsou
- Institute of Population Health Sciences, National Health Research Institutes, Miaoli, Taiwan; Graduate Institute of Biostatistics, College of Public Health, China Medical University, Taichung, Taiwan
| | - Ching-Yin Ho
- Faculty of Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan; Department of Otolaryngology, Cheng Hsin Hospital, Taipei, Taiwan
| | - Chih-Wen Twu
- Department of Otorhinolaryngology-Head and Neck Surgery, Changhua Christian Hospital, Changhua, Taiwan
| | - Yi-Chun Liu
- Department of Radiation Oncology, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Po-Ju Lin
- Department of Radiation Oncology, Changhua Christian Hospital, Changhua, Taiwan
| | - Pin-I Huang
- Faculty of Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan; Division of Radiation Oncology, Department of Oncology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Cheng-Ying Shiau
- Division of Radiation Oncology, Department of Oncology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Jin-Ching Lin
- Faculty of Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan; Department of Radiation Oncology, Taichung Veterans General Hospital, Taichung, Taiwan; Department of Radiation Oncology, Changhua Christian Hospital, Changhua, Taiwan; Institute of Clinical Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan.
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19
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Tsou HH, Yang HC, Hsiao CF, Hsiung CA, Liu TW, Chuang MH, Wu HY, Hsu YT, Tsui CW, Chen PJ, Cheng AL, Hsu C. Cost-effectiveness of preventing hepatitis B virus reactivation in patients with lymphoma and resolved HBV infection. J Formos Med Assoc 2019; 119:335-344. [PMID: 31235201 DOI: 10.1016/j.jfma.2019.05.027] [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] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/08/2019] [Revised: 05/08/2019] [Accepted: 05/29/2019] [Indexed: 12/17/2022] Open
Abstract
BACKGROUND/PURPOSE Hepatitis B virus (HBV) reactivation may occur in >10% of patients with lymphoma and resolved HBV infection who undergo rituximab-containing chemotherapy. Preventive strategies may have marked impact on resource allocation in HBV endemic areas. This study aims to compare the cost-effectiveness between prophylactic antiviral therapy and HBV DNA monitoring for the prevention of HBV-related complications. METHODS Data sources are studies of HBV-related events and survival for patients with lymphoma and resolved HBV infection published since 2006. Decision tree analysis was used to compare the incremental cost-effectiveness ratio (ICER) of preventing HBV-related death or liver decompensation for patients who undergo first-line rituximab-containing chemotherapy. Sensitivity analysis was performed to examine the impact of the preventive efficacy, the duration of prophylactic antiviral therapy, and the cost of different interventions. The direct medical cost was derived from the database of the NHI Administration, Taiwan. The time frame of our analysis was set to 3 years after the completion of chemotherapy. RESULTS The median ICER of prophylactic antiviral therapy, according to current practice guidelines, ranged between USD 150,000 and 250,000 if we apply the guidelines generally. When a long-course (12 months after completion of chemotherapy according to clinical guidelines) prophylactic therapy was assumed, Option A was cheaper and more effective only in the anti-HBs-negative subgroup (median ICER US$149,932 vs. US$161,526, p = 0.013). CONCLUSION Identification of anti-HBs-negative subgroups is critical to improve the cost-effectiveness of prophylactic antiviral therapy in lymphoma patients with resolved HBV infection.
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Affiliation(s)
- Hsiao-Hui Tsou
- Division of Biostatistics and Bioinformatics, Institute of Population Health Sciences, National Health Research Institutes, Miaoli, Taiwan; Graduate Institute of Biostatistics, College of Public Health, China Medical University, Taichung, Taiwan
| | - Hung-Chih Yang
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Chin-Fu Hsiao
- Division of Biostatistics and Bioinformatics, Institute of Population Health Sciences, National Health Research Institutes, Miaoli, Taiwan; Division of Clinical Trial Statistics, Institute of Population Health Sciences, National Health Research Institutes, Miaoli, Taiwan
| | - Chao A Hsiung
- Division of Biostatistics and Bioinformatics, Institute of Population Health Sciences, National Health Research Institutes, Miaoli, Taiwan
| | - Tsang-Wu Liu
- National Institute of Cancer Research, National Health Research Institutes, Miaoli, Taiwan
| | - Mei-Hsing Chuang
- Division of Clinical Trial Statistics, Institute of Population Health Sciences, National Health Research Institutes, Miaoli, Taiwan
| | - Hsiao-Yu Wu
- Division of Biostatistics and Bioinformatics, Institute of Population Health Sciences, National Health Research Institutes, Miaoli, Taiwan
| | - Ya-Ting Hsu
- Division of Biostatistics and Bioinformatics, Institute of Population Health Sciences, National Health Research Institutes, Miaoli, Taiwan
| | - Chiung-Wen Tsui
- Division of Biostatistics and Bioinformatics, Institute of Population Health Sciences, National Health Research Institutes, Miaoli, Taiwan
| | - Pei-Jer Chen
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan; Hepatitis Research Center, National Taiwan University Hospital, Taipei, Taiwan
| | - Ann-Lii Cheng
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan; Department of Oncology, National Taiwan University Hospital and National Taiwan University Cancer Center, Taipei, Taiwan; Graduate Institute of Oncology, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Chiun Hsu
- Department of Oncology, National Taiwan University Hospital and National Taiwan University Cancer Center, Taipei, Taiwan; Graduate Institute of Oncology, National Taiwan University College of Medicine, Taipei, Taiwan.
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20
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Chen YC, Chou WH, Tsou HH, Fang CP, Liu TH, Tsao HH, Hsu WC, Weng YC, Wang Y, Liu YL. A Post-hoc Study of D-Amino Acid Oxidase in Blood as an Indicator of Post-stroke Dementia. Front Neurol 2019; 10:402. [PMID: 31105635 PMCID: PMC6497996 DOI: 10.3389/fneur.2019.00402] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/29/2018] [Accepted: 04/03/2019] [Indexed: 02/03/2023] Open
Abstract
Stroke is an important risk factor for dementia. Epidemiological studies have indicated a high incidence of dementia in stroke patients. There is currently no effective biomarker for the diagnosis of post-stroke dementia (PSD). D-amino acid oxidase (DAO) is a flavin-dependent enzyme widely distributed in the central nervous system. DAO oxidizes D-amino acids, a process which generates neurotoxic hydrogen peroxide and leads to neurodegeneration. This study aimed to examine post-stroke plasma DAO levels as a biomarker for PSD. In total, 53 patients with PSD, 20 post-stroke patients without dementia (PSNoD), and 71 age- and gender-matched normal controls were recruited. Cognitive function was evaluated at more than 30 days post-stroke. Plasma DAO was measured using the enzyme-linked immunosorbent assay. White matter hyperintensity (WMH), a neuroimaging biomarker of cerebral small vessel diseases, was determined by magnetic resonance imaging. We found that plasma DAO levels were independently higher in PSD subjects than in PSNoD subjects or the controls and were correlated with the WMH load in stroke patients. Using an area under the curve (AUC)/receiver operating characteristic analysis, plasma DAO levels were significantly reliable for the diagnosis of PSD. The sensitivity and specificity of the optimal cut-off value of 321 ng/ml of plasma DAO for the diagnosis of PSD were 75 and 88.7%, respectively. In conclusion, our data support that plasma DAO levels were increased in PSD patients and correlated with brain WMH, independent of age, gender, hypertension, and renal function. Plasma DAO levels may therefore aid in PSD diagnosis.
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Affiliation(s)
- Yi-Chun Chen
- Department of Neurology, Chang Gung Memorial Hospital Linkou Medical Center and College of Medicine, Chang Gung University, Taoyuan, Taiwan.,Dementia Center, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Wen-Hai Chou
- Center for Neuropsychiatric Research, National Health Research Institutes, Miaoli, Taiwan
| | - Hsiao-Hui Tsou
- Division of Biostatistics and Bioinformatics, Institute of Population Health Sciences, National Health Research Institutes, Miaoli, Taiwan.,Graduate Institute of Biostatistics, China Medical University, Taichung, Taiwan
| | - Chiu-Ping Fang
- Center for Neuropsychiatric Research, National Health Research Institutes, Miaoli, Taiwan
| | - Tung-Hsia Liu
- Center for Neuropsychiatric Research, National Health Research Institutes, Miaoli, Taiwan
| | - Hsien-Hao Tsao
- Department of Medicine, Chang Gung University, Taoyuan, Taiwan
| | - Wen-Chuin Hsu
- Department of Neurology, Chang Gung Memorial Hospital Linkou Medical Center and College of Medicine, Chang Gung University, Taoyuan, Taiwan.,Dementia Center, Chang Gung Memorial Hospital, Taoyuan, Taiwan
| | - Yi-Chinn Weng
- Center for Neuropsychiatric Research, National Health Research Institutes, Miaoli, Taiwan
| | - Yun Wang
- Center for Neuropsychiatric Research, National Health Research Institutes, Miaoli, Taiwan
| | - Yu-Li Liu
- Center for Neuropsychiatric Research, National Health Research Institutes, Miaoli, Taiwan
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21
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Yuan HY, Wen TH, Kung YH, Tsou HH, Chen CH, Chen LW, Lin PS. Prediction of annual dengue incidence by hydro-climatic extremes for southern Taiwan. Int J Biometeorol 2019; 63:259-268. [PMID: 30680621 DOI: 10.1007/s00484-018-01659-w] [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] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/12/2018] [Revised: 10/30/2018] [Accepted: 12/03/2018] [Indexed: 05/16/2023]
Abstract
Dengue is one of the most rapidly spreading mosquito-borne viral diseases in the world. An increase in the incidence of dengue is commonly thought to be a consequence of variability of weather conditions. Taiwan, which straddles the Tropic of Cancer, is an excellent place to study the relationship between weather conditions and dengue fever cases since the island forms an isolated geographic environment. Therefore, clarifying the association between extreme weather conditions and annual dengue incidence is one of important issues for epidemic early warning. In this paper, we develop a Poisson regression model with extreme weather parameters for prediction of annual dengue incidence. A leave-one-out method is used to evaluate the performance of predicting dengue incidence. Our results indicate that dengue transmission has a positive relationship with the minimum temperature predictors during the early summer while a negative relationship with all the maximum 24-h rainfall predictors during the early epidemic phase of dengue outbreaks. Our findings provide a better understanding of the relationships between extreme weather and annual trends in dengue cases in Taiwan and it could have important implications for dengue forecasts in surrounding areas with similar meteorological conditions.
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Affiliation(s)
- Hsiang-Yu Yuan
- Department of Biomedical Sciences, City University of Hong Kong, Kowloon Tong, Hong Kong
| | - Tzai-Hung Wen
- Department of Geography, National Taiwan University, Taipei City, Taiwan
| | - Yi-Hung Kung
- National Mosquito-Borne Disease Control Research Center, National Health Research Institutes, 35 Keyan Road, Zhuna, Miaoli, 350, Taiwan
| | - Hsiao-Hui Tsou
- National Mosquito-Borne Disease Control Research Center, National Health Research Institutes, 35 Keyan Road, Zhuna, Miaoli, 350, Taiwan
- Institute of Population Health Sciences, National Health Research Institutes, 35 Keyan Road, Zhuna, Miaoli, 350, Taiwan
| | - Chun-Hong Chen
- National Mosquito-Borne Disease Control Research Center, National Health Research Institutes, 35 Keyan Road, Zhuna, Miaoli, 350, Taiwan
- Institute of Infectious Diseases and Vaccinology, National Health Research Institutes, Zhuna, Taiwan
| | - Li-Wei Chen
- Institute of Population Health Sciences, National Health Research Institutes, 35 Keyan Road, Zhuna, Miaoli, 350, Taiwan
| | - Pei-Sheng Lin
- National Mosquito-Borne Disease Control Research Center, National Health Research Institutes, 35 Keyan Road, Zhuna, Miaoli, 350, Taiwan.
- Institute of Population Health Sciences, National Health Research Institutes, 35 Keyan Road, Zhuna, Miaoli, 350, Taiwan.
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22
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Kumar V, Weng YC, Wu YC, Huang YT, Liu TH, Kristian T, Liu YL, Tsou HH, Chou WH. Genetic inhibition of PKCε attenuates neurodegeneration after global cerebral ischemia in male mice. J Neurosci Res 2018; 97:444-455. [PMID: 30488977 DOI: 10.1002/jnr.24362] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2018] [Revised: 10/31/2018] [Accepted: 11/13/2018] [Indexed: 11/08/2022]
Abstract
Global cerebral ischemia that accompanies cardiac arrest is a major cause of morbidity and mortality. Protein Kinase C epsilon (PKCε) is a member of the novel PKC subfamily and plays a vital role in ischemic preconditioning. Pharmacological activation of PKCε before cerebral ischemia confers neuroprotection. The role of endogenous PKCε after cerebral ischemia remains elusive. Here we used male PKCε-null mice to assess the effects of PKCε deficiency on neurodegeneration after transient global cerebral ischemia (tGCI). We found that the cerebral vasculature, blood flow, and the expression of other PKC isozymes were not altered in the PKCε-null mice. Spatial learning and memory was impaired after tGCI, but the impairment was attenuated in male PKCε-null mice as compared to male wild-type controls. A significant reduction in Fluoro-Jade C labeling and mitochondrial release of cytochrome C in the hippocampus was found in male PKCε-null mice after tGCI. Male PKCε-null mice expressed increased levels of PKCδ in the mitochondria, which may prevent the translocation of PKCδ from the cytosol to the mitochondria after tGCI. Our results demonstrate the neuroprotective effects of PKCε deficiency on neurodegeneration after tGCI, and suggest that reduced mitochondrial translocation of PKCδ may contribute to the neuroprotective action in male PKCε-null mice.
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Affiliation(s)
- Varun Kumar
- Department of Biological Sciences, School of Biomedical Sciences, Kent State University, Kent, Ohio
| | - Yi-Chinn Weng
- Center for Neuropsychiatric Research, National Health Research Institutes, Zhunan, Taiwan
| | - Yu-Chieh Wu
- Center for Neuropsychiatric Research, National Health Research Institutes, Zhunan, Taiwan
| | - Yu-Ting Huang
- Center for Neuropsychiatric Research, National Health Research Institutes, Zhunan, Taiwan
| | - Tung-Hsia Liu
- Center for Neuropsychiatric Research, National Health Research Institutes, Zhunan, Taiwan
| | - Tibor Kristian
- Department of Anesthesiology, School of Medicine, University of Maryland, Baltimore, Maryland
| | - Yu-Li Liu
- Center for Neuropsychiatric Research, National Health Research Institutes, Zhunan, Taiwan
| | - Hsiao-Hui Tsou
- Division of Biostatistics and Bioinformatics, Institute of Population Health Sciences, National Health Research Institutes, Zhunan, Taiwan.,Graduate Institute of Biostatistics, College of Public Health, China Medical University, Taichung, Taiwan
| | - Wen-Hai Chou
- Department of Biological Sciences, School of Biomedical Sciences, Kent State University, Kent, Ohio.,Center for Neuropsychiatric Research, National Health Research Institutes, Zhunan, Taiwan
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23
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Wang SC, Chung RH, Kuo HW, Liu TH, Fang CP, Liu SC, Liu CC, Tsou HH, Chen ACH, Liu YL. GRK5 Is Associated with the Regulation of Methadone Dosage in Heroin Dependence. Int J Neuropsychopharmacol 2018; 21:910-917. [PMID: 30060048 PMCID: PMC6165957 DOI: 10.1093/ijnp/pyy066] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/02/2018] [Revised: 06/24/2018] [Accepted: 07/25/2018] [Indexed: 12/25/2022] Open
Abstract
Background There is no countable biomarker for opioid dependence treatment responses thus far. In this study, we recruited Taiwanese methadone maintenance treatment patients to search for genes involving the regulatory mechanisms of methadone dose by genome-wide association analyses. Methods A total of 344 Taiwanese methadone maintenance treatment patients were included in a genome-wide association study. The involvement of GRK5 in opioid dependence was then further confirmed by gene expression study on lymphoblastoid cell lines derived from 3 independent age- and gender-matched groups: methadone maintenance treatment patients, medication-free former heroin abusers, and normal controls. Results The results indicated that GRK5, the gene encoding an enzyme related to μ-opioid receptor desensitization, is associated with methadone dose by additive model of gene-based association analysis (P=6.76×10-5). We found that 6 of the 55 single nucleotide polymorphisms from the genome-wide genotype platform and 2 single nucleotide polymorphisms from the 29 additionally selected single nucleotide polymorphisms were significantly associated with methadone maintenance dose in both genotype and allele type (P ≤ .006), especially in patients who tested negative in the urine morphine test. The levels of GRK5 gene expression were similar between methadone maintenance treatment patients and medication-free former heroin abusers. However, the normal controls showed a significantly lower level of GRK5 gene expression than the other groups (P=.019). Conclusions The results suggested an important role for GRK5 in the regulatory mechanisms of methadone dose and course of heroin dependence.
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Affiliation(s)
- Sheng-Chang Wang
- Center for Neuropsychiatric Research, National Health Research Institutes, Miaoli County, Taiwan
| | - Ren-Hua Chung
- Division of Biostatistics and Bioinformatics, Institute of Population Health Sciences, National Health Research Institutes, Miaoli County, Taiwan
| | - Hsiang-Wei Kuo
- Center for Neuropsychiatric Research, National Health Research Institutes, Miaoli County, Taiwan
| | - Tung-Hsia Liu
- Center for Neuropsychiatric Research, National Health Research Institutes, Miaoli County, Taiwan
| | - Chiu-Ping Fang
- Center for Neuropsychiatric Research, National Health Research Institutes, Miaoli County, Taiwan
| | - Shu Chih Liu
- Center for Neuropsychiatric Research, National Health Research Institutes, Miaoli County, Taiwan
| | - Chia-Chen Liu
- Center for Neuropsychiatric Research, National Health Research Institutes, Miaoli County, Taiwan
| | - Hsiao-Hui Tsou
- Division of Biostatistics and Bioinformatics, Institute of Population Health Sciences, National Health Research Institutes, Miaoli County, Taiwan
- Graduate Institute of Biostatistics, College of Public Health, China Medical University, Taichung, Taiwan
| | - Andrew C H Chen
- Department of Psychiatry, the Zucker Hillside Hospital, Northwell Health, Glen Oaks, New York
- The Feinstein Institute for Medical Research, Hofstra Northwell School of Medicine at Hofstra University, Manhasset, New York
| | - Yu-Li Liu
- Center for Neuropsychiatric Research, National Health Research Institutes, Miaoli County, Taiwan
- Graduate Institute of Clinical Medical Science, China Medical University, Taichung, Taiwan
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Yang HC, Tsou HH, Pei SN, Chang CS, Chen JH, Yao M, Lin SJ, Lin J, Yuan Q, Xia N, Liu TW, Chen PJ, Cheng AL, Hsu C. Quantification of HBV core antibodies may help predict HBV reactivation in patients with lymphoma and resolved HBV infection. J Hepatol 2018; 69:286-292. [PMID: 29551710 DOI: 10.1016/j.jhep.2018.02.033] [Citation(s) in RCA: 64] [Impact Index Per Article: 10.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/26/2017] [Revised: 02/13/2018] [Accepted: 02/26/2018] [Indexed: 12/17/2022]
Abstract
BACKGROUND & AIMS Absence or low anti-HBV surface antibody (anti-HBs) is associated with an increased risk of HBV reactivation in patients with lymphoma and resolved HBV infection receiving rituximab-containing chemotherapy. Quantification of anti-HBV core antibody (anti-HBc) is a new marker associated with the natural history and treatment response of chronic HBV infection. This study investigated whether baseline anti-HBc and anti-HBs levels may better predict HBV reactivation. METHODS We prospectively measured the HBV DNA levels of patients with lymphoma and resolved HBV infection receiving rituximab-cyclophosphamide, hydroxydaunorubicin, vincristine, and prednisolone-based chemotherapy and started an antiviral therapy upon HBV reactivation, defined as a greater than 10-fold increase in HBV DNA compared with previous nadir levels. Anti-HBs and anti-HBc were quantified by a double-sandwich assay. Receiver-operating-characteristic-curve analysis was used to determine the optimal baseline anti-HBc/anti-HBs levels for predicting HBV reactivation. RESULTS HBV reactivation occurred in 24 of the 197 patients enrolled, with an incidence of 11.6/100 person-years. For the 192 patients with enough serum samples for analysis, low anti-HBs (<56.48 mIU/ml) and high anti-HBc (≥6.41 IU/ml) at baseline were significantly associated with high risk of HBV reactivation (hazard ratio [HR] 8.48 and 4.52, respectively; p <0.01). The multivariate analysis indicated that (1) patients with both high anti-HBc and low anti-HBs at baseline (36 of 192 patients) had an HR of 17.29 for HBV reactivation (95% CI 3.92-76.30; p <0.001), and (2) HBV reactivation may be associated with inferior overall survival (HR 2.41; 95% CI 1.15-5.05; p = 0.02). CONCLUSIONS Baseline anti-HBc/anti-HBs levels may predict HBV reactivation in these patients with lymphoma and help optimize prophylactic antiviral therapy for high-risk patients. LAY SUMMARY In this study, we identified a subgroup of patients with lymphoma and resolved hepatitis B virus infection that had a high risk of hepatitis B virus reactivation after receiving rituximab-containing chemotherapy. These findings will help optimize a preventive strategy, especially in hepatitis B virus endemic regions with limited healthcare resources. Clinical trial number: NCT 00931229.
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Affiliation(s)
- Hung-Chih Yang
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Hsiao-Hui Tsou
- Division of Biostatistics and Bioinformatics, Institute of Population Health Sciences, National Health Research Institutes, Miaoli, Taiwan; Graduate Institute of Biostatistics, College of Public Health, China Medical University, Taichung, Taiwan
| | - Sung-Nan Pei
- Department of Internal Medicine, Kaohsiung Chang-Gung Memorial Hospital, Kaohsiung, Taiwan
| | - Cheng-Shyong Chang
- Department of Internal Medicine, Changhua Christian Hospital, Changhua, Taiwan
| | - Jia-Hong Chen
- Department of Internal Medicine, Tri-Service General Hospital, Taipei, Taiwan
| | - Ming Yao
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - Shyh-Jer Lin
- Department of Internal Medicine, Kaohsiung Veterans General Hospital, Kaohsiung, Taiwan
| | - Johnson Lin
- Department of Internal Medicine, Mackay Memorial Hospital, Taipei, Taiwan
| | - Quan Yuan
- National Institute of Diagnostics and Vaccine Development in Infectious Diseases, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen, China
| | - Ningshao Xia
- National Institute of Diagnostics and Vaccine Development in Infectious Diseases, State Key Laboratory of Molecular Vaccinology and Molecular Diagnostics, School of Public Health, Xiamen University, Xiamen, China
| | - Tsang-Wu Liu
- National Institute of Cancer Research, National Health Research Institutes, Miaoli, Taiwan
| | - Pei-Jer Chen
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan; Hepatitis Research Center, National Taiwan University Hospital, Taipei, Taiwan
| | - Ann-Lii Cheng
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan; Department of Oncology, National Taiwan University Hospital, Taipei, Taiwan; Graduate Institute of Oncology, National Taiwan University College of Medicine, Taipei, Taiwan; National Taiwan University Cancer Center, Taipei, Taiwan
| | - Chiun Hsu
- Department of Oncology, National Taiwan University Hospital, Taipei, Taiwan; Graduate Institute of Oncology, National Taiwan University College of Medicine, Taipei, Taiwan; National Taiwan University Cancer Center, Taipei, Taiwan.
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25
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Kuo HW, Liu TH, Tsou HH, Hsu YT, Wang SC, Fang CP, Liu CC, Chen ACH, Liu YL. Inflammatory chemokine eotaxin-1 is correlated with age in heroin dependent patients under methadone maintenance therapy. Drug Alcohol Depend 2018; 183:19-24. [PMID: 29222992 DOI: 10.1016/j.drugalcdep.2017.10.014] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/12/2017] [Revised: 10/03/2017] [Accepted: 10/07/2017] [Indexed: 12/18/2022]
Abstract
BACKGROUND Degeneration of central neurons and fibers has been observed in postmortem brains of heroin dependent patients. However, there are no biomarkers to predict the severity of neurodegeneration related to heroin dependence. A correlation has been reported between inflammatory C-C motif chemokine ligand 11 (CCL11, or eotaxin-1) and neurodegeneration in Alzheimer's disease. METHODS Three-hundred-forty-four heroin dependent, Taiwanese patients under methadone maintenance treatment (MMT) were included with clinical assessment and genomics information. Eighty-seven normal control subjects were also recruited for comparison. RESULTS Using receiver operating characteristics curve analyses, CCL11 showed the strongest sensitivity and specificity in correlation with age by a cut-off at 45 years (AUC = 0.69, P < 0.0001) in MMT patients, but not normal controls. Patients 45 years of age or older had significantly higher plasma levels of CCL11, fibroblast growth factor 2 (FGF-2), nicotine metabolite cotinine, and a longer duration of addiction. Plasma level of CCL11 was correlated with that of FGF-2 (partial r2 = 0.24, P < 0.0001). Carriers with the mutant allele of rs1129844, a functional single nucleotide polymorphism (Ala23Thr) in the CCL11 gene, showed a higher plasma level of Aß42, ratio of Aß42/Aß40, and insomnia side effect symptom score than the GG genotype carriers among MMT responders with morphine-negative urine results. CONCLUSIONS The results suggest possible novel mechanisms mediated through CCL11 involving neurotoxicity in heroin dependent patients.
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Affiliation(s)
- Hsiang-Wei Kuo
- Center for Neuropsychiatric Research, National Health Research Institutes, Miaoli County, Taiwan
| | - Tung-Hsia Liu
- Center for Neuropsychiatric Research, National Health Research Institutes, Miaoli County, Taiwan
| | - Hsiao-Hui Tsou
- Division of Biostatistics and Bioinformatics, Institute of Population Health Sciences, National Health Research Institutes, Miaoli County, Taiwan; Graduate Institute of Biostatistics, College of Public Health, China Medical University, Taichung, Taiwan
| | - Ya-Ting Hsu
- Division of Biostatistics and Bioinformatics, Institute of Population Health Sciences, National Health Research Institutes, Miaoli County, Taiwan
| | - Sheng-Chang Wang
- Center for Neuropsychiatric Research, National Health Research Institutes, Miaoli County, Taiwan
| | - Chiu-Ping Fang
- Center for Neuropsychiatric Research, National Health Research Institutes, Miaoli County, Taiwan
| | - Chia-Chen Liu
- Center for Neuropsychiatric Research, National Health Research Institutes, Miaoli County, Taiwan
| | - Andrew C H Chen
- Department of Psychiatry, The Zucker Hillside Hospital, Northwell Health System, Glen Oaks, NY, USA; The Feinstein Institute for Medical Research, Hofstra Northwell School of Medicine at Hofstra University, Manhasset, NY, USA
| | - Yu-Li Liu
- Center for Neuropsychiatric Research, National Health Research Institutes, Miaoli County, Taiwan; Graduate Institute of Clinical Medical Science, China Medical University, Taichung, Taiwan.
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Hsu CP, Chuang HC, Lee MC, Tsou HH, Lee LW, Li JP, Tan TH. GLK/MAP4K3 overexpression associates with recurrence risk for non-small cell lung cancer. Oncotarget 2018; 7:41748-41757. [PMID: 27203390 PMCID: PMC5173093 DOI: 10.18632/oncotarget.9410] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2016] [Accepted: 04/23/2016] [Indexed: 01/14/2023] Open
Abstract
Lung cancer is the leading cause of cancer death worldwide. Non-small cell lung cancer (NSCLC) accounts for 85% of total lung cancers; 40% to 60% of NSCLC patients die of cancer recurrence after cancer resection. Since GLK (also named MAP4K3) induces activation of NF-κB, which contributes to tumor progression, we investigated the role of GLK in NSCLC. GLK protein levels of 190 samples from pulmonary tissue arrays and 58 pulmonary resection samples from stage I to stage III NSCLC patients were studied using immunohistochemistry or immunoblotting. High levels of GLK proteins were detected in pulmonary tissues from NSCLC patients. Elevated GLK protein levels were correlated with increased recurrence risks and poor recurrence-free survival rates in NSCLC patients after adjusting for pathologic stage, smoking status, alcohol status, and EGFR levels. Thus, GLK is a novel prognostic biomarker for NSCLC recurrence.
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Affiliation(s)
- Chung-Ping Hsu
- Division of Thoracic Surgery, Department of Surgery, Taichung Veterans General Hospital, Taichung, 40705, Taiwan.,Faculty of Medicine, School of Medicine, National Yang-Ming University, Taipei, 11221, Taiwan
| | - Huai-Chia Chuang
- Immunology Research Center, National Health Research Institutes, Zhunan, 35053, Taiwan
| | - Ming-Ching Lee
- Division of Thoracic Surgery, Department of Surgery, Taichung Veterans General Hospital, Taichung, 40705, Taiwan.,Institute of Clinical Medicine, School of Medicine, National Yang-Ming University, Taipei, 11221, Taiwan
| | - Hsiao-Hui Tsou
- Division of Biostatistics and Bioinformatics, Institute of Population Health Sciences, National Health Research Institutes, Zhunan, 35053, Taiwan
| | - Li-Wen Lee
- Division of Thoracic Surgery, Department of Surgery, Taichung Veterans General Hospital, Taichung, 40705, Taiwan
| | - Ju-Pi Li
- Immunology Research Center, National Health Research Institutes, Zhunan, 35053, Taiwan
| | - Tse-Hua Tan
- Immunology Research Center, National Health Research Institutes, Zhunan, 35053, Taiwan.,Department of Pathology & Immunology, Baylor College of Medicine, Houston, Texas, 77030, USA
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27
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Wang WY, Lin TY, Twu CW, Tsou HH, Lin PJ, Liu YC, Huang JW, Hsieh HY, Lin JC. Long-term clinical outcome in nasopharyngeal carcinoma patients with post-radiation persistently detectable plasma EBV DNA. Oncotarget 2018; 7:42608-42616. [PMID: 27191654 PMCID: PMC5173160 DOI: 10.18632/oncotarget.9323] [Citation(s) in RCA: 25] [Impact Index Per Article: 4.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/25/2015] [Accepted: 04/18/2016] [Indexed: 02/04/2023] Open
Abstract
Purpose To investigate the long-term clinical outcome of nasopharyngeal carcinoma (NPC) patients with persistently detectable plasma EBV (pEBV) DNA after curative radiotherapy (RT). Results The post-RT pEBV DNA levels were very lower copy number (median 21, interquartile range 8–206 copies/ml). After long-term follow-up, the relapse rate was 64.8%, the median time to progression 20 months, and 5-year overall survival (OS) 49.6%. Thirty-two of 39 (82.1%) patients with high viral load (≥ 100 copies/ml) developed tumor relapse, whereas 57.0% (49/86) patients with low viral load (< 100 copies/ml) had tumor relapse (P = 0.0065). The 5-year OS rates were 20.5% and 62.9% for patients with viral load ≥ and < 100 copies/ml (median survival, 20 vs. 100 months; P < 0.0001). Patients who received adjuvant chemotherapy (AdjCT) experienced significant reduction in distant failures (66.2% vs. 31.6%; P = 0.0001) but similar locoregional recurrences (P = 0.2337). The 5-year OS rates were 69.4% for patients who received AdjCT compared with 33.2% for those of without AdjCT (median survival, 111 vs. 32 months; P < 0.0001). Methods We screened 931 newly diagnosed NPC patients who finished curative RT and found 125 patients (13.4%) with detectable pEBV DNA one week after RT. The clinical characteristics, treatment modality, subsequent failure patterns and survivals were analyzed. Conclusions NPC patients with persistently detectable pEBV DNA after curative RT have a higher rate of treatment failure and poor survivals. Levels of the post-RT pEBV DNA and administration of AdjCT affect the final outcome significantly.
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Affiliation(s)
- Wen-Yi Wang
- Department of Nursing, Hung Kuang University, Taichung, Taiwan.,Department of Nursing, National Taichung University of Science and Technology, Taichung, Taiwan
| | - Tian-Yun Lin
- Department of Otorhinolaryngology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Chih-Wen Twu
- Department of Otorhinolaryngology, Taichung Veterans General Hospital, Taichung, Taiwan.,Faculty of Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan
| | - Hsiao-Hui Tsou
- Institute of Population Health Sciences, National Health Research Institutes, Miaoli, Taiwan.,Graduate Institute of Biostatistics, College of Public Health, China Medical University, Taichung, Taiwan
| | - Po-Ju Lin
- Department of Radiation Oncology, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Yi-Chun Liu
- Department of Radiation Oncology, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Jing-Wen Huang
- Department of Radiation Oncology, Taichung Veterans General Hospital, Taichung, Taiwan
| | - He-Yuan Hsieh
- Department of Radiation Oncology, Taichung Veterans General Hospital, Taichung, Taiwan
| | - Jin-Ching Lin
- Faculty of Medicine, School of Medicine, National Yang-Ming University, Taipei, Taiwan.,Department of Radiation Oncology, Taichung Veterans General Hospital, Taichung, Taiwan.,Institute of Clinical Medicine,School of Medicine, National Yang Ming University, Taipei, Taiwan.,Department of Medicine, China Medical University, Taichung, Taiwan
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28
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Liu TH, Chung RH, Wang SC, Fang CP, Tsou HH, Shih CL, Kuo HW, Wang Y, Liu YL. Missense mutation at CLDN8 associated with a high plasma interferon gamma-inducible protein 10 level in methadone-maintained patients with urine test positive for morphine. PLoS One 2017; 12:e0187639. [PMID: 29145422 PMCID: PMC5690676 DOI: 10.1371/journal.pone.0187639] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/27/2017] [Accepted: 10/23/2017] [Indexed: 01/16/2023] Open
Abstract
We previously reported a high plasma chemokine interferon gamma-inducible protein 10 (IP-10) level and prolonged electrocardiography QT-interval in methadone maintenance treatment (MMT) patients with HIV or HCV infection. The purpose of this study was to evaluate the genetic association of high plasma IP-10 level in the MMT patients. The gene-based and pathway-based association analyses were conducted using a genome-wide association study dataset in 344 MMT patients for identifying genes and pathways associated with plasma IP-10 level. We found that plasma IP-10 level was significantly associated with a pathway in the tight junction (P = 1.01x10-5), where the claudin 8 (CLDN8) gene had the most significant association (P = 6.8x10-5). A functional single nucleotide polymorphism (SNP) rs686364 at exon 1 of CLDN8 showed strong association with plasma IP-10 levels, in the MMT subjects with positive urine test for morphine (dominant model, P = 0.00004). The minor allele type carriers had higher plasma IP-10 levels than the major allele type carriers. Our data support that the tight junction protein claudin 8 exon 1 is a predictor for the plasma levels of IP-10 in MMT patients with urine test positive for morphine.
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Affiliation(s)
- Tung-Hsia Liu
- Center for Neuropsychiatric Research, National Health Research Institutes, Miaoli, Taiwan
| | - Ren-Hua Chung
- Division of Biostatistics and Bioinformatics, Institute of Population Health Sciences, National Health Research Institutes, Miaoli, Taiwan
| | - Sheng-Chang Wang
- Center for Neuropsychiatric Research, National Health Research Institutes, Miaoli, Taiwan
| | - Chiu-Ping Fang
- Center for Neuropsychiatric Research, National Health Research Institutes, Miaoli, Taiwan
| | - Hsiao-Hui Tsou
- Division of Biostatistics and Bioinformatics, Institute of Population Health Sciences, National Health Research Institutes, Miaoli, Taiwan
- Graduate Institute of Biostatistics, College of Public Health, China Medical University, Taichung, Taiwan
| | - Chia-Lung Shih
- Center for Neuropsychiatric Research, National Health Research Institutes, Miaoli, Taiwan
| | - Hsiang-Wei Kuo
- Center for Neuropsychiatric Research, National Health Research Institutes, Miaoli, Taiwan
| | - Yun Wang
- Center for Neuropsychiatric Research, National Health Research Institutes, Miaoli, Taiwan
| | - Yu-Li Liu
- Center for Neuropsychiatric Research, National Health Research Institutes, Miaoli, Taiwan
- Graduate Institute of Clinical Medical Science, China Medical University, Taichung, Taiwan
- * E-mail:
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29
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Chen CT, Tsou HH, Hsiao CF, Lai YH, Chang WJ, Liu JT. A Tolerance Interval Approach to Assessing the Biosimilarity of Follow-On Biologics. Stat Biopharm Res 2017. [DOI: 10.1080/19466315.2017.1323669] [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: 10/19/2022]
Affiliation(s)
- Chi-Tian Chen
- Division of Biostatistics and Bioinformatics, Institute of Population Health Sciences, National Health Research Institutes, Zhunan, Miaoli County, Taiwan, ROC
| | - Hsiao-Hui Tsou
- Division of Biostatistics and Bioinformatics, Institute of Population Health Sciences, National Health Research Institutes, Zhunan, Miaoli County, Taiwan, ROC
- Graduate Institute of Biostatistics, College of Public Health, China Medical University, Taichung, Taiwan, ROC
| | - Chin-Fu Hsiao
- Division of Biostatistics and Bioinformatics, Institute of Population Health Sciences, National Health Research Institutes, Zhunan, Miaoli County, Taiwan, ROC
- Division of Clinical Trial Statistics, Institute of Population Health Sciences, National Health Research Institutes, Zhunan, Miaoli County, Taiwan, ROC
| | - Yi-Hsuan Lai
- Software Design Center, Foxconn International Co., Ltd, New Taipei City, Taiwan, ROC
| | - Wan-Jung Chang
- Division of Biostatistics and Bioinformatics, Institute of Population Health Sciences, National Health Research Institutes, Zhunan, Miaoli County, Taiwan, ROC
| | - Jung-Tzu Liu
- Division of Biostatistics and Bioinformatics, Institute of Population Health Sciences, National Health Research Institutes, Zhunan, Miaoli County, Taiwan, ROC
- Institute of Bioinformatics and Structural Biology, National Tsing Hua University, Hsinchu, Taiwan, ROC
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30
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Kuo HW, Shih CL, Tsung JH, Liu SW, Chu SK, Yang HC, Tsou HH, Wang ZH, Chen ACH, Liu YL. Pharmacogenomics study on cadherin 2 network with regard to HIV infection and methadone treatment outcome. PLoS One 2017; 12:e0174647. [PMID: 28358908 PMCID: PMC5373543 DOI: 10.1371/journal.pone.0174647] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/12/2016] [Accepted: 03/13/2017] [Indexed: 12/17/2022] Open
Abstract
Heroin dependent patients have a high incidence of HIV infection. In contrast to the gene expression method, we developed a systemic correlation analysis method built upon the results of pharmacogenomics study in a methadone maintenance treatment (MMT) cohort consisting of 344 Taiwanese heroin dependent patients. We identified genetic variants and their encoding proteins that may be involved with HIV infection and MMT treatment outcome. Cadherin 2 (CDH2) genetic determinants were identified through the genome-wide pharmacogenomic study. We found significant correlations among HIV infection status, plasma levels of CDH2, cytokine IL-7, ADAM10, and the treatment responses to methadone. Two single nucleotide polymorphisms located within CDH2 gene showed associations with blood pressure and plasma CDH2 concentration. Plasma concentration of CDH2 showed correlations with the level of cytokine IL-7, status of HIV infection, and urine morphine test result. Plasma level of IL-7 was correlated with corrected QT interval (QTc) and gooseflesh skin withdrawal symptom score, while level of ADAM10 was correlated with plasma concentrations of vitamin D metabolite, nicotine metabolite, and R-methadone. The results suggest a novel network involving HIV infection and methadone treatment outcome.
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Affiliation(s)
- Hsiang-Wei Kuo
- Center for Neuropsychiatric Research, National Health Research Institutes, Miaoli, Taiwan
| | - Chia-Lung Shih
- Center for Neuropsychiatric Research, National Health Research Institutes, Miaoli, Taiwan
| | - Jieh-Hen Tsung
- Center for Neuropsychiatric Research, National Health Research Institutes, Miaoli, Taiwan
| | - Sheng-Wen Liu
- Center for Neuropsychiatric Research, National Health Research Institutes, Miaoli, Taiwan
| | - Shih-Kai Chu
- Institute of Statistical Science, Academia Sinica, Taipei, Taiwan
| | - Hsin-Chou Yang
- Institute of Statistical Science, Academia Sinica, Taipei, Taiwan
| | - Hsiao-Hui Tsou
- Division of Biostatistics and Bioinformatics, Institute of Population Health Sciences, National Health Research Institutes, Miaoli, Taiwan
- Graduate Institute of Biostatistics, College of Public Health, China Medical University, Taichung, Taiwan
| | - Zih-Hsiang Wang
- Department of Psychology, National Taiwan University, Taipei, Taiwan
| | - Andrew C. H. Chen
- Department of Psychiatry, The Zucker Hillside Hospital, Northwell Health, Glen Oaks, New York, United States of America
- The Feinstein Institute for Medical Research, Hofstra Northwell School of Medicine at Hofstra University, Manhasset, New York, United States of America
| | - Yu-Li Liu
- Center for Neuropsychiatric Research, National Health Research Institutes, Miaoli, Taiwan
- Graduate Institute of Clinical Medical Science, China Medical University, Taichung, Taiwan
- * E-mail:
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31
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Chiang NJ, Chen JS, Chen MH, Yang SH, Hsu C, Yen CJ, Tsou HH, Yanshen S, Chen LT. A phase II trial of modified gemcitabine plus S-1 combination as the first-line treatment in patients with advanced biliary tract cancer. J Clin Oncol 2017. [DOI: 10.1200/jco.2017.35.4_suppl.417] [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: 11/20/2022] Open
Abstract
417 Background: Gemcitabine plus platinum, notably cisplatin, is conceived as the standard regimen for advanced biliary tract cancer (ABTC) nowadays. Recent randomized phase II study (JCOG0805) showed that gemcitabine plus S-1 was more promising than S-1 alone in ABTC, and a randomized phase III, UMIN 000001685, is currently ongoing to compare the efficacy of gemcitabine plus either S-1 (GS) or cisplatin (GC) in ABTC. Herein, we report the results of a single arm phase II of modified GS in Taiwanese ABTC patients, NCT02425137. Methods: Patients with chemonaïve ABTC were eligible to receive 800mg/m2 gemcitabine with 10 mg/m2/min infusion, on day 1 plus daily 80/100/120 mg of S-1 (based on BSA) days 1-10, in a 2-week cycle. With Optimal Simon’s two-stage design and (p0= 0.4, p1= 0.6) for 12-week disease control rate (proportion of patients with complete or partial response [CR/PR] or stable disease ≥ 12 weeks [SD≥ 12weeks]) and given error probabilities (alpha = 0.05, beta = 0.2), the null hypothesis (p0) would be rejected if 24 or more patients with CR/PR/SD≥ 12weeks were observed among 46 accruals. Tumor response was assessed by CT/MRI every 6 weeks according to RECIST v1.1. Results: Between May 2015 and April 2016, totally 46 evaluable patients were enrolled to receive a median of 9.5 cycles (range: 3-31) of modified GS. After a median of 8.7 months (95% CI, 6.7-9.1) follow-up, 10 (21.7%) patients achieved PR and additional 23 (50%) had SD>12weeks. The median progression-free survival and overall survival was 5.6 (95% CI, 4.4-7.2) and 10.8 (95% CI, 7.6-not reached) months, respectively. All grade 3 treatment-related AEs were < 5%. The dose intensity of S-1 and gemcitabine were both more than 95%. Conclusions: By the observation of 33 patients with PR/SD≥ 12weeks, the null hypothesis was rejected. Modified GS is an active regimen with excellent safety profiles and deserves further investigation for the management of Asian ABTC patients. Clinical trial information: NCT 02425137.
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Affiliation(s)
- Nai-Jung Chiang
- National Institute of Cancer Research, National Health Research Institutes, Tainan, Taiwan
| | | | - Ming-Huang Chen
- Division of Hematology and Oncology, Department of Medicine, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Shih-Hung Yang
- Department of Oncology, National Taiwan University Hospital; Graduate Institute of Clinical Medicine, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Chiun Hsu
- National Taiwan University Hospital, Taipei, Taiwan
| | - Chia-Jui Yen
- National Cheng Kung University Hospital, Tainan City, Taiwan
| | | | - Shan Yanshen
- NATIONAL CHENG KUNG UNIVERSITY HOSPITAL, Tainan, Taiwan
| | - Li-Tzong Chen
- National Health Research Institutes (NHRI) - National Institute of Cancer Research, Taipei, Taiwan
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32
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Chan DCD, Tsou HH, Chang CB, Yang RS, Tsauo JY, Chen CY, Hsiao CF, Hsu YT, Chen CH, Chang SF, Hsiung CA, Kuo KN. Integrated care for geriatric frailty and sarcopenia: a randomized control trial. J Cachexia Sarcopenia Muscle 2017; 8:78-88. [PMID: 27897406 PMCID: PMC5326822 DOI: 10.1002/jcsm.12132] [Citation(s) in RCA: 48] [Impact Index Per Article: 6.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/29/2015] [Revised: 05/18/2016] [Accepted: 05/23/2016] [Indexed: 01/10/2023] Open
Abstract
BACKGROUND Exercise, nutrition, and psychological interventions may all have positive impacts on frailty and sarcopenia. However, it is not known whether an integrated care programme with all three components can be beneficial and the intensity of such programme is also not certain. In this study, we aim to determine the effectiveness of two levels of integrated care on frailty and sarcopenia. METHODS A randomized control trial was conducted at two community hospitals in Taiwan. Older adults (65-79 years of age, N = 289) who scored ≥1 on the Cardiovascular Health Study Phenotypic Classification of Frailty (CHS_PCF) were enrolled in the trial. Low-level care (LLC) participants received a 2 h education course on frailty, sarcopenia, coping strategy, nutrition, and demonstration of study exercise programme. Educational multimedia material was distributed as reference for home practice with bi-monthly telephone follow-ups on adherences. High-level care (HLC) participants, in addition to LLC instructions, received six sessions of on-site problem solving therapy and 48 exercise sessions within 6 months. Brief nutrition consultation was also provided during the exercise sessions. Primary outcome was improvement of the CHS_PCF by at least one category (from pre-frail to robust, or from frail to pre-frail or robust) from baseline. Secondary outcomes included changes of individual frailty, and sarcopenia indicators. Assessments were done at 3, 6, and 12 months by trained research assistants blinded to randomization status. Intention-to-treat analysis was applied. RESULTS Mean age was 71.6 ± 4.3 years, with 53% females. For the entire cohort, improvement of primary outcome was 35% at 3 months, increased to 40% at 6 months, and remained stable at 39% at 12 months. Improvement rates were similar in both groups. Compared with the LLC group, HLC participants had greater improvements in the following indices: energy expenditure of walking, 5 m walking time, dominant hand grip strength, timed-up-and-go-test, and one-leg-stand time - mainly at 6 and 12 month assessments. CONCLUSIONS The 6 month integrated care improved frailty and sarcopenia status among community-dwelling elders, with high-intensity training yielding greater improvements. Low-level care could be promoted as a basic intervention, while HLC could be reserved for those at high risk and with high motivation.
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Affiliation(s)
- Ding-Cheng Derrick Chan
- Department of Geriatrics and Gerontology, and Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan.,Superintendent Office, National Taiwan University Hospital Chu-Tung Branch, Hsin-Chu County, Taiwan
| | - Hsiao-Hui Tsou
- Division of Biostatistics and Bioinformatics, Institute of Population Health Sciences, National Health Research Institutes, Zhunan, Taiwan.,Graduate Institute of Biostatistics, College of Public Health, China Medical University, Taichung, Taiwan
| | - Chirn-Bin Chang
- Department of Geriatrics and Gerontology, National Taiwan University Hospital, Taipei, Taiwan.,Department of Internal Medicine, National Taiwan University Hospital Chu-Tung Branch, Hsin-Chu County, Taiwan
| | - Rong-Sen Yang
- Department of Orthopedic Surgery, National Taiwan University Hospital, Taipei, Taiwan
| | - Jau-Yih Tsauo
- School and Graduate Institute of Physical Therapy, College of Medicine, National Taiwan University, Taipei, Taiwan
| | - Ching-Yu Chen
- Department of Family Medicine, National Taiwan University Hospital, Taipei, Taiwan.,Division of Gerontology, Institute of Population Health Sciences, National Health Research Institutes, Taipei, Taiwan
| | - Chin-Fu Hsiao
- Division of Biostatistics and Bioinformatics, Institute of Population Health Sciences, National Health Research Institutes, Zhunan, Taiwan.,Division of Clinical Trial Statistics, Institute of Population Health Sciences, National Health Research Institutes, Zhunan, Taiwan
| | - Ya-Ting Hsu
- Division of Biostatistics and Bioinformatics, Institute of Population Health Sciences, National Health Research Institutes, Zhunan, Taiwan
| | - Chia-Hui Chen
- Department of Psychiatry, Shuang Ho Hospital, Taipei Medical University, New Taipei City, Taiwan.,Division of Mental Health and Addiction Medicine, Institute of Population Health Sciences, National Health Research Institutes, Zhunan, Taiwan
| | - Shu-Fang Chang
- Department of Nursing, College of Nursing, National Taipei University of Nursing and Health Sciences, Taipei, Taiwan
| | - Chao Agnes Hsiung
- Division of Biostatistics and Bioinformatics, Institute of Population Health Sciences, National Health Research Institutes, Zhunan, Taiwan
| | - Ken N Kuo
- Department of Orthopedic Surgery, National Taiwan University Hospital, Taipei, Taiwan.,Center for Evidence-Based Medicine, Taipei Medical University, Taipei, Taiwan.,Institute of Population Health Sciences, National Health Research Institutes, Zhunan, Taiwan
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Chiang NJ, Hsu C, Chen JS, Tsou HH, Shen YY, Chao Y, Chen MH, Yeh TS, Shan YS, Huang SF, Chen LT. Expression levels of ROS1/ALK/c-MET and therapeutic efficacy of cetuximab plus chemotherapy in advanced biliary tract cancer. Sci Rep 2016; 6:25369. [PMID: 27136744 PMCID: PMC4853728 DOI: 10.1038/srep25369] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2016] [Accepted: 04/15/2016] [Indexed: 12/26/2022] Open
Abstract
Aberrant expression of ROS1, ALK or c-MET (RAM) is implicated in carcinogenesis and cancer drug resistance. We retrospectively evaluated the effect of RAM expression on outcomes for advanced biliary tract cancer patients, who were treated with gemcitabine plus oxaliplatin (GEMOX), with or without cetuximab, in a randomized phase II trial. RAM expression levels on archived tissue sections were scored using immunohistochemistry (IHC). Of 110 tumors with IHC staining for all three markers, 18 were RAMhigh (IHC intensity 3+ for any markers). Ninety-two tumors were RAMlow (IHC intensity <3+ for all markers). All RAMhigh tumors were intra-hepatic cholangiocarcinomas (IHCC). Of the patients with IHCC (n = 80), median overall survival (OS) of RAMhigh group was inferior to that of the RAMlow group (5.7 vs. 11.7 months, p = 0.021). In multivariate analysis RAMhigh remained an independently adverse prognostic factor, with a hazard ratio of 2.01 (p = 0.039). In the RAMlow group, GEMOX treatment with cetuximab significantly improved the disease control rate (68% vs. 41%, p = 0.044), median progression-free survival (7.3 vs. 4.9 months, p = 0.026), and marginally prolonged median OS (14.1 vs 9.6 months, p = 0.056), compared to GEMOX treatment alone. Future trials of anti-EGFR inhibitors for IHCC may consider RAM expression as a patient stratification factor.
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Affiliation(s)
- Nai-Jung Chiang
- Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,National Institute of Cancer Research, National Health Research Institutes, Tainan, Taiwan.,Division of Hematology and Oncology, Department of Internal Medicine, National Cheng Kung University Hospital, Tainan, Taiwan
| | - Chiun Hsu
- Department of Oncology, National Taiwan University Hospital, and National Taiwan University Cancer Center, Taipei, Taiwan.,Graduate Institute of Oncology, National Taiwan University College of Medicine, Taipei, Taiwan
| | - Jen-Shi Chen
- Division of Hematology and Oncology, Department of Internal Medicine, Linkou Chang Gung Memorial Hospital and Chang Gung University, Taoyuan, Taiwan
| | - Hsiao-Hui Tsou
- Division of Biostatistics and Bioinformatics, Institute of Population Health Sciences, National Health Research Institutes, Miaoli, Taiwan.,Graduate Institute of Biostatistics, College of Public Health, China Medical University, Taichung, Taiwan
| | - Ying-Ying Shen
- Institute of Molecular and Genomic Medicine, National Health Research Institutes, Miaoli, Taiwan
| | - Yee Chao
- Department of Oncology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Ming-Huang Chen
- Department of Oncology, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Ta-Sen Yeh
- Department of Surgery, Linkou Chang Gung Memorial Hospital and Chang Gung University, Taoyuan, Taiwan
| | - Yan-Shen Shan
- Institute of Clinical Medicine, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,Department of Surgery, National Cheng Kung University Hospital, Tainan, Taiwan
| | - Shiu-Feng Huang
- Institute of Molecular and Genomic Medicine, National Health Research Institutes, Miaoli, Taiwan
| | - Li-Tzong Chen
- National Institute of Cancer Research, National Health Research Institutes, Tainan, Taiwan.,Division of Hematology and Oncology, Department of Internal Medicine, National Cheng Kung University Hospital, Tainan, Taiwan.,Institute of Clinical Pharmacology, College of Medicine, National Cheng Kung University, Tainan, Taiwan.,Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung Medical University, Kaohsiung, Taiwan
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Liu JT, Tsou HH, Gordon Lan KK, Chen CT, Lai YH, Chang WJ, Tzeng CS, Hsiao CF. Assessing the consistency of the treatment effect under the discrete random effects model in multiregional clinical trials. Stat Med 2016; 35:2301-14. [DOI: 10.1002/sim.6869] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/17/2014] [Revised: 11/15/2015] [Accepted: 12/22/2015] [Indexed: 11/12/2022]
Affiliation(s)
- Jung-Tzu Liu
- Institute of Population Health Sciences; National Health Research Institutes; Zhunan Taiwan
- Institute of Bioinformatics and Structural Biology; National Tsing Hua University; Hsinchu Taiwan
| | - Hsiao-Hui Tsou
- Institute of Population Health Sciences; National Health Research Institutes; Zhunan Taiwan
- Graduate Institute of Biostatistics, College of Public Health; China Medical University; Taichung Taiwan
| | - K. K. Gordon Lan
- Janssen R & D, Pharmaceutical Companies of Johnson & Johnson; Raritan NJ U.S.A
| | - Chi-Tian Chen
- Institute of Population Health Sciences; National Health Research Institutes; Zhunan Taiwan
| | - Yi-Hsuan Lai
- Software Design Center; Cloud Systems Dept. FIH Mobile Limited; New Taipei City Taiwan
| | - Wan-Jung Chang
- Institute of Population Health Sciences; National Health Research Institutes; Zhunan Taiwan
| | - Chyng-Shyan Tzeng
- Institute of Bioinformatics and Structural Biology; National Tsing Hua University; Hsinchu Taiwan
| | - Chin-Fu Hsiao
- Institute of Population Health Sciences; National Health Research Institutes; Zhunan Taiwan
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Liu SW, Liu YL, Hwang LL, Wang SC, Kuo HW, Wu SL, Dai YWE, Liu SC, Ho IK, Chen ACH, Hsiao CF, Tsou HH. Chemokine IP-10 is correlated with cardiac responses and status of infection with HIV and HCV in methadone maintenance patients. Int J Cardiol 2015; 194:36-8. [PMID: 26011262 DOI: 10.1016/j.ijcard.2015.05.055] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/07/2015] [Accepted: 05/09/2015] [Indexed: 10/23/2022]
Affiliation(s)
- Sheng-Wen Liu
- Center for Neuropsychiatric Research, National Health Research Institutes, Miaoli, Taiwan
| | - Yu-Li Liu
- Center for Neuropsychiatric Research, National Health Research Institutes, Miaoli, Taiwan.
| | - Ling-Ling Hwang
- Graduate Institute of Medical Sciences and Department of Physiology, College of Medicine, Taipei Medical University, 250 Wu-Hsing Street, Taipei 110, Taiwan
| | - Sheng-Chang Wang
- Center for Neuropsychiatric Research, National Health Research Institutes, Miaoli, Taiwan
| | - Hsiang-Wei Kuo
- Center for Neuropsychiatric Research, National Health Research Institutes, Miaoli, Taiwan
| | - Shiow-Ling Wu
- Center for Research, Diagnostics and Vaccine Development, Centers for Disease Control, Ministry of Health and Welfare, Taipei, Taiwan
| | - Yu-Wen E Dai
- Graduate Institute of Medical Sciences and Department of Physiology, College of Medicine, Taipei Medical University, 250 Wu-Hsing Street, Taipei 110, Taiwan
| | - Shu Chih Liu
- Center for Neuropsychiatric Research, National Health Research Institutes, Miaoli, Taiwan
| | - Ing-Kang Ho
- Center for Drug Abuse and Addiction, China Medical University Hospital, Taichung, Taiwan; Graduate Institute of Clinical Medical Science, China Medical University, Taichung, Taiwan
| | - Andrew C H Chen
- Department of Psychiatry, The Zucker Hillside Hospital, North Shore-Long Island Jewish Medical Center Health System, Glen Oaks, NY, USA; The Feinstein Institute for Medical Research, Hofstra North Shore-LIJ School of Medicine at Hofstra University, Manhasset, NY, USA
| | - Chin-Fu Hsiao
- Division of Clinical Trial Statistics, Institute of Population Health Sciences, National Health Research Institutes, Miaoli, Taiwan; Division of Biostatistics and Bioinformatics, Institute of Population Health Sciences, National Health Research Institutes, Miaoli, Taiwan
| | - Hsiao-Hui Tsou
- Division of Biostatistics and Bioinformatics, Institute of Population Health Sciences, National Health Research Institutes, Miaoli, Taiwan; Graduate Institute of Biostatistics, College of Public Health, China Medical University, Taichung, Taiwan.
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Hsu C, Tsou HH, Lin SJ, Wang MC, Yao M, Hwang WL, Kao WY, Chiu CF, Lin SF, Lin J, Chang CS, Tien HF, Liu TW, Chen PJ, Cheng AL. Chemotherapy-induced hepatitis B reactivation in lymphoma patients with resolved HBV infection: a prospective study. Hepatology 2014; 59:2092-100. [PMID: 24002804 DOI: 10.1002/hep.26718] [Citation(s) in RCA: 210] [Impact Index Per Article: 21.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/18/2013] [Accepted: 08/23/2013] [Indexed: 12/13/2022]
Abstract
UNLABELLED Fatal hepatitis B virus (HBV) reactivation in lymphoma patients with "resolved" HBV infection (hepatitis B surface antigen [HBsAg] negative and hepatitis B core antibody [anti-HBc] positive) can occur, but the true incidence and severity remain unclear. From June 2009 to December 2011, 150 newly diagnosed lymphoma patients with resolved HBV infection who were to receive rituximab-CHOP (cyclophosphamide, doxorubicin, vincristine, prednisolone)-based chemotherapy were prospectively followed. HBV DNA was checked at baseline, at the start of each cycle of chemotherapy, and every 4 weeks for 1 year after completion of rituximab-CHOP chemotherapy. Patients with documented HBV reactivation were treated with entecavir at a dosage of 0.5 mg/day for 48 weeks. HBV reactivation was defined as a greater than 10-fold increase in HBV DNA, compared with previous nadir levels, and hepatitis flare was defined as a greater than 3-fold increase in alanine aminotransferase (ALT) that exceeded 100 IU/L. Incidence of HBV reactivation and HBV-related hepatitis flares was 10.4 and 6.4 per 100 person-year, respectively. Severe HBV-related hepatitis (ALT >10-fold of upper limit of normal) occurred in 4 patients, despite entecavir treatment. Patients with hepatitis flare exhibited significantly higher incidence of reappearance of HBsAg after HBV reactivation (100% vs. 28.5%; P=0.003). CONCLUSION In lymphoma patients with resolved HBV infections, chemotherapy-induced HBV reactivation is not uncommon, but can be managed with regular monitoring of HBV DNA and prompt antiviral therapy. Serological breakthrough (i.e., reappearance of HBsAg) is the most important predictor of HBV-related hepatitis flare. (Hepatology 2014;59:2092-2100).
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Affiliation(s)
- Chiun Hsu
- Department of Oncology, National Taiwan University Hospital, Taipei, Taiwan; Graduate Institute of Oncology, National Taiwan University College of Medicine, Taipei, Taiwan
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Kuo HW, Liu SC, Tsou HH, Liu SW, Lin KM, Lu SC, Hsiao MC, Hsiao CF, Liu CY, Chen CH, Lu ML, Shen WW, Tang HS, Liu SI, Chang LH, Wu HY, Chang YS, Yeh TK, Chen AC, Liu YL. CYP1A2 genetic polymorphisms are associated with early antidepressant escitalopram metabolism and adverse reactions. Pharmacogenomics 2014; 14:1191-201. [PMID: 23859573 DOI: 10.2217/pgs.13.105] [Citation(s) in RCA: 17] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
AIM The liver CYP1A2 enzyme may metabolize antidepressant escitalopram (S-CIT) to S-desmethylcitalopram (S-DCIT) and S-didesmethylcitalopram (S-DDCIT). This study tested whether genetic polymorphisms in the CYP1A2 gene are associated with the treatment responses to S-CIT. MATERIALS & METHODS Ten SNPs in CYP1A2 were selected and genotyped in 158 patients under S-CIT treatment. The serum levels of S-CIT and its metabolites were measured by HPLC. RESULTS CYP1A2 SNPs rs2069521, rs2069526, rs4646425 and rs4646427 are significantly associated with the metabolic ratios of S-DDCIT/S-DCIT (p = 0.002, 0.018, 0.008 and 0.004, respectively) at week 2 of treatment. Carriers of the allele types associated with higher S-DDCIT/S-DCIT ratios had more severe side effects. CONCLUSION These results suggest that genetic variants in CYP1A2 may be indicators for S-CIT metabolism and that the fast metabolizers may experience more severe adverse reactions in the early stages of S-CIT treatment. Original submitted 27 December 2012; Revision submitted 15 May 2013.
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Affiliation(s)
- Hsiang-Wei Kuo
- Center for Neuropsychiatric Research, National Health Research Institutes, 35 Keyan Road, Zhunan, Miaoli County 350, Taiwan
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Chan DC, Lee YS, Wu YJ, Tsou HH, Chen CT, Hwang JS, Tsai KS, Yang RS. A 12-year ecological study of hip fracture rates among older Taiwanese adults. Calcif Tissue Int 2013; 93:397-404. [PMID: 23828276 DOI: 10.1007/s00223-013-9759-x] [Citation(s) in RCA: 24] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/09/2013] [Accepted: 06/09/2013] [Indexed: 01/02/2023]
Abstract
Hip fracture rates in Taiwan are among the highest in the world. The aim of this study was to describe the trends of hip fracture hospitalizations among Taiwanese elderly (aged ≥ 65 years) and the trends of antiosteoporosis medication expenditure from 1999 to 2010. We conducted an ecological study using inpatient health care-utilization data from the Department of Health, and medication expenditure data from the IMS Health, Taiwan. The International Classification of Disease, Clinical Modification, 9th version, code 820 was used to identify hip fracture hospitalizations. Medications included alendronate, calcitonin, ibandronate, raloxifene, strontium ranelate, teriparatide, and zoledronic acid. Year 2010 was assigned as the reference point for age-standardized rates, currency exchange (to the US dollar), and discount rates. Over the 12-year study period, age-standardized hip fracture hospitalizations decreased by 2.7 % annually (p for trend < 0.001) for Taiwanese elders. The decline was more obvious among those aged ≥75 years (6.1 %). However, the number of hip fracture hospitalizations increased from 14,342 to 18,023. Total hospitalization costs increased by US$0.6 ± 0.2 million annually (p for trend = 0.002); however, the per capita costs decreased by US$23.0 ± 8.0 (p for trend = 0.017). The total medication expenditure increased 7.2-fold, from US$8.1 million to US$58.9 million, accounting for an increase in the overall pharmaceutical market by fivefold, from 3.4 to 15.9 ‰ (both p for trend < 0.001). From 1999 to 2010, there was a decline in hip fracture rates among elderly Taiwanese adults with a concomitant increase in antiosteoporosis medication expenditure.
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Affiliation(s)
- Ding-Cheng Chan
- Department of Geriatrics and Gerontology, National Taiwan University Hospital, No. 7 Chung Shan S. Rd., Taipei, 100, Taiwan
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Wang SC, Ho IK, Tsou HH, Liu SW, Hsiao CF, Chen CH, Tan HKL, Lin L, Wu CS, Su LW, Huang CL, Yang YH, Liu ML, Lin KM, Liu SC, Wu HY, Kuo HW, Chen ACH, Chang YS, Liu YL. Functional genetic polymorphisms in CYP2C19 gene in relation to cardiac side effects and treatment dose in a methadone maintenance cohort. OMICS 2013; 17:519-26. [PMID: 24016178 DOI: 10.1089/omi.2012.0068] [Citation(s) in RCA: 30] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
Abstract Methadone maintenance therapy is an established treatment for heroin dependence. This study tested the influence of functional genetic polymorphisms in CYP2C19 gene encoding a CYP450 enzyme that contributes to methadone metabolism on treatment dose, plasma concentration, and side effects of methadone. Two single nucleotide polymorphisms (SNPs), rs4986893 (exon 4) and rs4244285 (exon 5), were selected and genotyped in 366 patients receiving methadone maintenance therapy in Taiwan. The steady-state plasma concentrations of both methadone and its EDDP metabolite enantiomers were measured. SNP rs4244285 allele was significantly associated with the corrected QT interval (QTc) change in the electrocardiogram (p=0.021), and the Treatment Emergent Symptom Scale (TESS) total score (p=0.021) in patients who continued using heroin, as demonstrated with a positive urine opiate test. Using the gene dose (GD) models where the CYP2C19 SNPs were clustered into poor (0 GD) versus intermediate (1 GD) and extensive (2 GD) metabolizers, we found that the extensive metabolizers required a higher dose of methadone (p=0.035), and showed a lower plasma R-methadone/methadone dose ratio (p=0.007) in urine opiate test negative patients, as well as a greater QTc change (p=0.008) and higher total scores of TESS (p=0.018) in urine opiate test positive patients, than poor metabolizers. These results in a large study sample from Taiwan suggest that the gene dose of CYP2C19 may potentially serve as an indicator for the plasma R-methadone/methadone dose ratio and cardiac side effect in patients receiving methadone maintenance therapy. Further studies of pharmacogenetic variation in methadone pharmacokinetics and pharmacodynamics are warranted in different world populations.
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Affiliation(s)
- Sheng-Chang Wang
- 1 Center for Neuropsychiatric Research, National Health Research Institutes , Miaoli, Taiwan
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Affiliation(s)
- Hsiao-Hui Tsou
- a Division of Biostatistics and Bioinformatics , Institute of Population Health Sciences, National Health Research Institutes , Miaoli , Taiwan
| | - Wan-Jung Chang
- a Division of Biostatistics and Bioinformatics , Institute of Population Health Sciences, National Health Research Institutes , Miaoli , Taiwan
| | - Wong-Shian Hwang
- a Division of Biostatistics and Bioinformatics , Institute of Population Health Sciences, National Health Research Institutes , Miaoli , Taiwan
| | - Yi-Hsuan Lai
- a Division of Biostatistics and Bioinformatics , Institute of Population Health Sciences, National Health Research Institutes , Miaoli , Taiwan
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Wu SL, Wang SC, Tsou HH, Kuo HW, Ho IK, Liu SW, Hsu YT, Chang YS, Liu YL. Hepatitis C virus infection influences the S-methadone metabolite plasma concentration. PLoS One 2013; 8:e69310. [PMID: 23935979 PMCID: PMC3720619 DOI: 10.1371/journal.pone.0069310] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [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: 12/06/2012] [Accepted: 06/07/2013] [Indexed: 01/25/2023] Open
Abstract
BACKGROUND AND OBJECTIVES Heroin-dependent patients typically contract hepatitis C virus (HCV) at a disproportionately high level due to needle exchange. The liver is the primary target organ of HCV infection and also the main organ responsible for drug metabolism. Methadone maintenance treatment (MMT) is a major treatment regimen for opioid dependence. HCV infection may affect methadone metabolism but this has rarely been studied. In our current study, we aimed to test the hypothesis that HCV may influence the methadone dosage and its plasma metabolite concentrations in a MMT cohort from Taiwan. METHODS A total of 366 MMT patients were recruited. The levels of plasma hepatitis B virus (HBV), HCV, human immunodeficiency virus (HIV) antibodies (Ab), liver aspartate aminotransferase (AST) and alanine aminotransferase (ALT), as well as methadone and its metabolite 2-ethylidene-1,5-dimethyl-3,3-diphenylpyrrolidine (EDDP) were measured along with the urine morphine concentration and amphetamine screening. RESULTS Of the 352 subjects in our cohort with HCV test records, 95% were found to be positive for plasma anti-HCV antibody. The liver functional parameters of AST (Wilcoxon Rank-Sum test, P = 0.02) and ALT (Wilcoxon Rank-Sum test, P = 0.04), the plasma methadone concentrations (Wilcoxon Rank-Sum test, P = 0.043) and the R-enantiomer of methadone concentrations (Wilcoxon Rank-Sum test, P = 0.032) were significantly higher in the HCV antibody-positive subjects than in the HCV antibody-negative patients, but not the S-EDDP/methadone dose ratio. The HCV levels correlated with the methadone dose (β= 14.65 and 14.13; P = 0.029 and 0.03) and the S-EDDP/methadone dose ratio (β= -0.41 and -0.40; P = 0.00084 and 0.002) in both univariate and multivariate regression analyses. CONCLUSIONS We conclude that HCV may influence the methadone dose and plasma S-EDDP/methadone dose ratio in MMT patients in this preliminary study.
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Affiliation(s)
- Shiow-Ling Wu
- Graduate Institute of Life Sciences, National Defense Medical Center, Taipei, Taiwan
- Center for Research and Diagnostics, Centers for Disease Control, Department of Health, Executive Yuan, Taipei, Taiwan
| | - Sheng-Chang Wang
- Center for Neuropsychiatric Research, National Health Research Institutes, Zhunan, Miaoli County, Taiwan
| | - Hsiao-Hui Tsou
- Division of Biostatistics and Bioinformatics, Institute of Population Health Sciences, National Health Research Institutes, Zhunan, Miaoli County, Taiwan
| | - Hsiang-Wei Kuo
- Center for Neuropsychiatric Research, National Health Research Institutes, Zhunan, Miaoli County, Taiwan
| | - Ing-Kang Ho
- Center for Neuropsychiatric Research, National Health Research Institutes, Zhunan, Miaoli County, Taiwan
- Center for Drug Abuse and Addiction, China Medical University Hospital, Taichung, Taiwan
- Graduate Institute of Clinical Medical Science, College of Medicine, China Medical University, Taichung, Taiwan
| | - Sheng-Wen Liu
- Center for Neuropsychiatric Research, National Health Research Institutes, Zhunan, Miaoli County, Taiwan
| | - Ya-Ting Hsu
- Division of Biostatistics and Bioinformatics, Institute of Population Health Sciences, National Health Research Institutes, Zhunan, Miaoli County, Taiwan
| | - Yao-Sheng Chang
- Center for Neuropsychiatric Research, National Health Research Institutes, Zhunan, Miaoli County, Taiwan
| | - Yu-Li Liu
- Graduate Institute of Life Sciences, National Defense Medical Center, Taipei, Taiwan
- Center for Neuropsychiatric Research, National Health Research Institutes, Zhunan, Miaoli County, Taiwan
- Graduate Institute of Drug Safety, China Medical University, Taichung, Taiwan
- Department of Psychiatry, National Taiwan University Hospital and National Taiwan University College of Medicine, Taipei, Taiwan
- * E-mail:
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Chang KY, Tsai SY, Chen SH, Tsou HH, Yen CJ, Liu KJ, Fang HL, Wu HC, Chuang BF, Chou SW, Tang CK, Liu SY, Lu PJ, Yen CY, Chang JY. Dissecting the EGFR-PI3K-AKT pathway in oral cancer highlights the role of the EGFR variant III and its clinical relevance. J Biomed Sci 2013; 20:43. [PMID: 23806066 PMCID: PMC3710269 DOI: 10.1186/1423-0127-20-43] [Citation(s) in RCA: 25] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2013] [Accepted: 05/14/2013] [Indexed: 01/20/2023] Open
Abstract
Background Dysregulated epidermal growth factor receptor (EGFR)-phosphoinositide-3-kinase (PI3K)-AKT signaling is considered pivotal for oral cancer, and the pathway is a potential candidate for therapeutic targeting. Results A total of 108 archival samples which were from surgically resected oral cancer were examined. Immunohistochemical staining showed the protein expression of membranous wild-type EGFR and cytoplasmic phosphorylated AKT was detected in 63.9% and 86.9% of the specimens, respectively. In 49.1% of the samples, no phosphatase and tensin homolog (PTEN) expression was detected. With regard to the EGFR variant III (EGFRvIII), 75.0% of the samples showed positive expression for moderate to severe staining, 31.5% of which had high expression levels. Real-time polymerase chain reaction assays for gene copy number assessment of PIK3CA revealed that 24.8% of the samples had alterations, and of EGFR showed that 49.0% had amplification. Direct sequencing of PIK3CA gene showed 2.3% of the samples had a hotspot point mutation. Statistical assessment showed the expression of the EGFRvIII correlated with the T classification and TNM stage. The Kaplan-Meier analyses for patient survival showed that the individual status of phosphorylated AKT and EGFRvIII led to significant differences in survival outcome. The multivariate analysis indicated that phosphorylated AKT, EGFRvIII expression and disease stage were patient survival determinants. Conclusions Aberrations in the EGFR-PI3K-AKT pathway were frequently found in oral cancers. EGFRvIII and phosphorylated AKT were predictors for the patient survival and clinical outcome.
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Affiliation(s)
- Kwang-Yu Chang
- Institute of Clinical Medicine College of Medicine, National Cheng Kung University, 7th Floor, No.35 Xiaodong Rd., Tainan City 701, Taiwan
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Chen LT, Chen JS, Chao Y, Tsai CS, Shan YS, Hsu C, Huang SF, Tsou HH, Lee KD, Chiu CF, Rau KM, Ho CL, Yu MS. KRAS mutation status-stratified randomized phase II trial of GEMOX with and without cetuximab in advanced biliary tract cancer (ABTC): The TCOG T1210 trial. J Clin Oncol 2013. [DOI: 10.1200/jco.2013.31.15_suppl.4018] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/20/2022] Open
Abstract
4018 Background: Gemcitabine/platinum combination is considered as globally acceptable standard care in patients with ABTC. Two recently published randomized trials showed adding EGFR antagonist, either erlotinib or cetuximab, does not further improve the clinical outcomes of gemcitabine/oxaliplatin (GEMOX)-treated ABTC patients. However, the impact of KRAS mutation status on the results of both studies was not properly addressed. Methods: A prospective, multicenter randomized, phase II trial to evaluate the therapeutic efficacies of adding cetuximab to GEMOX in patients with ABTC, in which eligible patients were stratified by status of KRAS mutation and ECOG PS, and tumor location then randomized to receive either GEMOX (gemcitabine 800 mg/m2, fixed-rate infusion and oxaliplatin 85 mg/m2, i.v., Q 2 weeks) or GEMOX plus cetuximab (500 mg/m2, i.v., Q 2 weeks, C-GEMOX). The primary endpoint was overall response rate (ORR). As an exploratory trial, 120 (60 per arm) patients was estimated to detect a two-tailed 10% difference in ORR (20% in GEMOX and 30% in C-GEMOX) with a significant level of a=0.2 and b=0.5. Results: Between Nov 2010 and May 2012, a total of 122 patients were accrued. The demography was male: 47.5%, median age: 60 y/o, ECOG PS 0/1: 28.7%/71.3%, IHCC/EHCC/GBC: 71.3%/16.4%/12.3%, KRAS mutation: 36.1%, with locally advanced/metastatic diseases: 32.0%/68.0%, and prior surgical resection: 41.8%. On intent-to-treat analysis, the ORR and DCR in the C-GEMOX (N=62) and GEMOX (N-60) arms was 27.3% vs 15.0% (p=0.1223) and 82.2% vs 60.0% (p=0.0090), respectively (Fisher’s exact test); while the median PFS was 7.1 vs 4.0 months (p= 0.0069) and median OS was 10.3 vs 8.8 months (p=0.4057), respectively (log-rank test). Planned subgroup analysis showed the 43 patients with KRAS mutated tumors benefited more from cetuximab therapy, with a DCR of 78.3% vs 38.1% (p=0.0132), median PFS of 7.0 vs 1.9 months (p=0.0351) and median OS of 10.3 vs 6.6 months (p=0.6924). Conclusions: Adding cetuximab significant improves the DCR and PFS of GEMOX in ABTC patients, notably in subpopulation with KRAS mutated tumors. Larger-scale phase III trial is warranted. Clinical trial information: NCT01267344.
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Affiliation(s)
- Li-Tzong Chen
- Kaohsiung Medical Univesity Hospital, Kaohsiung Medical Univesity, Kaohsiung, Taiwan
| | - Jen-Shi Chen
- Chang Gung Memorial Hospital and Chang Gung University, Taipei, Taiwan
| | - Yee Chao
- Cancer Center, Taipei Veterans General Hospital, Taipei, Taiwan
| | - Chang-Sung Tsai
- National Institute of Cancer Research, National Health Research Institutes, Tainan, Taiwan
| | - Yan-Shen Shan
- National Cheng Kung University Hospital, Tainan, Taiwan
| | - Chiun Hsu
- National Taiwan University Hospital, Taipei, Taiwan
| | | | | | | | | | - Kun-Ming Rau
- Chang Gung Memorial Hospital Kaohsiung Branch, Kaohsiung, Taiwan
| | - Ching-Liang Ho
- Triservice General Hospital, National Defence Medical University, Taipei, Taiwan
| | - Ming-Sun Yu
- Veterans General Hospital, Kaohsiung, Taiwan
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Abstract
The ICH E5 Guidance facilitates the registration of medicine among ICH regions by recommending a framework for evaluating the impact of ethnic factors upon a medicine's effect. It further describes the use of bridging studies, when necessary, to allow extrapolation of foreign clinical data to a new region. Bridging studies are performed in a new region for medicines already approved in the original region. The conventional noninferiority criterion requires the treatment effect (adjusted for placebo) attained in the new region preserves a prespecified proportion of the treatment effect attained in the original region. Such a bridging criterion, however, is often impractical. Hsiao et al. (2007) proposed a Bayesian approach that borrows the strength of the original trial to establish the treatment effect in the bridging region through using a weighted prior distribution. The weight, however, is often difficult to prespecify. In this presentation, we consider the overall treatment effect by combining the weighted effects attained in the original and bridging regions. The maximum weight allowed to be placed on the estimate of bridging region in order to show a significant overall treatment effect represents the strength of the treatment effect in the bridging region. Regional approval will be evaluated either by comparing the weight estimate with the prespecified limit or by benefit-risk evaluation of the medicine. Sample size requirements for the approaches are derived. The simulation results of type I error rate and power for the proposed methods are given. An example illustrates the application of the proposed procedures.
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Affiliation(s)
- Hsiao-Hui Tsou
- Division of Biostatistics and Bioinformatics, Institute of Population Health Sciences, National Health Research Institutes, Zhunan, Miaoli County, Taiwan.
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Tian JN, Ho IK, Tsou HH, Fang CP, Hsiao CF, Chen CH, Tan HKL, Lin L, Wu CS, Su LW, Huang CL, Yang YH, Liu ML, Chen YT, Liu SC, Hsu YT, Kuo HW, Liu CT, Yang YT, Chen AC, Shih YH, Liu YL. UGT2B7 genetic polymorphisms are associated with the withdrawal symptoms in methadone maintenance patients. Pharmacogenomics 2012; 13:879-88. [PMID: 22676193 DOI: 10.2217/pgs.12.69] [Citation(s) in RCA: 24] [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] [Indexed: 01/19/2023] Open
Abstract
AIM To test whether the genetic polymorphisms within the gene encoding the UGT2B7 gene may have an impact on methadone treatment. MATERIALS & METHODS Twelve SNPs in UGT2B7 were selected. 366 methadone maintenance treatment patients in Taiwan were recruited and genotyped. RESULTS In a genotype recessive model, rs6600879, rs6600880, rs4554144, rs11940316, rs7438135, rs7662029, rs7668258, rs7439366, rs4292394 and rs6600893 showed significant associations with severity of withdrawal symptoms (permutation p < 0.002), pupil size (permutation p < 0.048) and tremor (permutation p < 0.008). Haplotypes of GATCAGCCGC and CTCTGATTCT were significantly associated with pupil size score and tremor score (p < 0.034). CONCLUSION These results suggest that SNPs of the UGT2B7 gene may play important roles in opiate withdrawal symptoms.
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Affiliation(s)
- Jia-Ni Tian
- Division of Mental Health & Addiction Medicine, Institute of Population Health Sciences, National Health Research Institutes, 35 Keyan Road, Zhunan, Miaoli County 350, Taiwan
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Wang SC, Tsou HH, Chen CH, Chen YT, Ho IK, Hsiao CF, Chou SY, Lin YF, Fang KC, Huang CL, Su LW, Fang YC, Liu ML, Wu HY, Lin KM, Liu SC, Kuo HW, Chiang IC, Chen ACH, Tian JN, Liu YL. Genetic polymorphisms in the opioid receptor mu1 gene are associated with changes in libido and insomnia in methadone maintenance patients. Eur Neuropsychopharmacol 2012; 22:695-703. [PMID: 22406240 DOI: 10.1016/j.euroneuro.2012.02.002] [Citation(s) in RCA: 37] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/12/2011] [Revised: 02/04/2012] [Accepted: 02/11/2012] [Indexed: 10/28/2022]
Abstract
Methadone, a synthetic racemic opioid that primarily works as a μ-opioid receptor (OPRM1) agonist, is commonly used for the treatment of heroin addiction. Genetic association studies have reported that the OPRM1 gene is involved in the physiology of heroin and alcohol addiction. Our current study is designed to test the hypothesis that genetic polymorphisms in the OPRM1 gene region are associated with methadone dosage, plasma concentrations, treatment responses, adverse reactions and withdrawal symptoms in a methadone maintenance treatment (MMT) cohort from Taiwan. Fifteen OPRM1 single nucleotide polymorphisms (SNPs) were selected and genotyped using DNA samples from 366 MMT patients. The plasma concentrations of methadone and its metabolite were measured by high performance liquid chromatography. The results obtained using dominant model analysis indicate that the OPRM1 SNPs rs1074287, rs6912029, rs12209447, rs510769, rs3798676, rs7748401, rs495491, rs10457090, rs589046, rs3778152, rs563649, and rs2075572 are significantly associated with change-in-libido side effects (adjusted p<0.042). Using recessive model analysis, these SNPs were also found to be significantly associated with insomnia side effects in this cohort (p<0.009). The significance of the insomnia findings was mainly contributed by a subgroup of patients who had a positive urine morphine test (p<0.022), and by individuals who did not use benzodiazepine hypnotics (p<0.034). Our current data thus suggest that genetic polymorphisms in OPRM1 may influence the change-in-libido and insomnia side effects sometimes found in MMT patients.
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Affiliation(s)
- Sheng-Chang Wang
- Division of Mental Health and Addiction Medicine, Institute of Population Health Sciences, National Health Research Institutes, Miaoli County, Taiwan
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Chan DCD, Tsou HH, Yang RS, Tsauo JY, Chen CY, Hsiung CA, Kuo KN. A pilot randomized controlled trial to improve geriatric frailty. BMC Geriatr 2012; 12:58. [PMID: 23009149 PMCID: PMC3490887 DOI: 10.1186/1471-2318-12-58] [Citation(s) in RCA: 97] [Impact Index Per Article: 8.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/22/2012] [Accepted: 09/11/2012] [Indexed: 01/13/2023] Open
Abstract
Background Few randomized controlled trials (RCTs) report interventions targeting improvement of frailty status as an outcome. Methods This RCT enrolled 117 older adults (65-79 years of age) in Toufen, Taiwan who scored 3-6 on The Chinese Canadian Study of Health and Aging Clinical Frailty Scale Telephone Version and then score ≥1 on the Cardiovascular Health Study Phenotypic Classification of Frailty (CHS_PCF). With a two by two factorial design, subjects were randomly assigned to interventions (Exercise and nutrition, EN, n = 55 or problem solving therapy, PST, n = 57) or controls (non-EN, n = 62 or non-PST, n = 60). Educational booklets were provided to all. EN group subjects received nutrition consultation and a thrice-weekly exercise-training program while PST group subjects received 6 sessions in 3 month. Subjects were followed at 3, 6, and 12 months. Primary outcome was improvement of the CHS_PCF by at least one category (from pre-frail to robust, or from frail to pre-frail or robust) from baseline assessments. One hundred and one completed final assessments. Intention-to-treat analysis with the generalized estimating equation model was applied with adjustment for time and treatment-by-time interactions. Results Mean age was 71.4 ± 3.7 years, with 59% females. Baseline characteristic were generally comparable between groups. EN group subjects had a higher improvement rate on the primary outcome than non-EN group subjects (45% vs 27%, adjusted p = 0.008) at 3 months, but not 6 or 12 months. They also had more increase of serum 25(OH) vitamin D level (4.9 ± 7.7 vs 1.2 ± 5.4, p = 0.006) and lower percentage of osteopenia (74% vs 89% p = 0.042) at 12 months. PST group subjects had better improvement (2.7 ± 6.1 vs 0.2 ± 6.7, p = 0.035, 6-month) and less deterioration (−3.5 ± 9.7 vs −7.1 ± 8.7, p = 0.036, 12-month) of dominant leg extension power than non-PST subjects. Some secondary outcomes were also improved in control groups (non-EN or non-PST). No adverse effects were reported. Conclusions The three-month EN intervention resulted in short-term (3-month) frailty status improvement and long-term effect on bone mineral density and serum vitamin D (12-month) among Taiwanese community-dwelling elders. The effect of PST was less pronounce. Trial registration ClinicalTrials.gov: EC0970301
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Affiliation(s)
- Ding-Cheng Derrick Chan
- Institute of Population Health Sciences, National Health Research Institutes, 35 Keyan Road, Zhunan, Miaoli County, Taiwan
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Tsou HH, Tsong Y, Chang WJ, Dong X, Hsiao CF. Design and Analysis Issues of Multiregional Clinical Trials with Different Regional Primary Endpoints. J Biopharm Stat 2012; 22:1051-9. [DOI: 10.1080/10543406.2012.701586] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/27/2022]
Affiliation(s)
- Hsiao-Hui Tsou
- Division of Biostatistics and Bioinformatics, Institute of Population Health Sciences, National Health Research Institutes, Zhunan, Miaoli County, Taiwan.
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Affiliation(s)
- Yi Tsong
- a Office of Biostatistics, CDER , U.S. Food and Drug Administration , Silver Spring , Maryland , USA
| | - Wan-Jung Chang
- b Division of Biostatistics and Bioinformatics , Institute of Population Health Sciences, National Health Research Institutes , Zhunan Town , Miaoli County , Taiwan
| | - Xiaoyu Dong
- c University of Maryland at Baltimore County , Baltimore , Maryland , USA
| | - Hsiao-Hui Tsou
- b Division of Biostatistics and Bioinformatics , Institute of Population Health Sciences, National Health Research Institutes , Zhunan Town , Miaoli County , Taiwan
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Tuan TF, Chung CT, Tsou HH, Chen FW, Lin HL, Lai YK, Lee WS, Chao YS, Hwang LL, Chen CT. Putative tumor metastasis-associated genes in human gastric cancer. Int J Oncol 2012; 41:1068-84. [PMID: 22664961 DOI: 10.3892/ijo.2012.1502] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2012] [Accepted: 05/11/2012] [Indexed: 01/06/2023] Open
Abstract
Gastric cancer is one of the leading causes of cancer mortality and its malignancy, resulting from disseminated cancer cells of diffuse type, is clinically manifested as metastases to the liver and peritoneum. The aim of the present study was to identify putative tumor metastasis-associated genes in human gastric cancer cells of diffuse type. An MKN45 cell line constitutively expressing green fluorescent protein (MKN45-GFP) was established and selected using the Transwell® system for invasive sublines MKN45-GFP-4, MKN45-GFP-10 and MKN45-GFP-12. MKN45-GFP-10 and MKN45-GFP-12 are highly invasive compared to the others. The mRNA levels were measured with cDNA microarrays and correlated with their invasion abilities in these sublines. Many of the genes identified with a positive or negative correlation are associated with angiogenesis, cell cycle, cytoskeleton and cell motility, protease and cell adhesion, as well as cellular signal transduction. In particular, novel genes without known functions were also noted. RT-PCR and western blot analyses were applied to verify the expression of selective genes. Following orthotopical intraperitoneal implantation, MKN45-GFP-12 demonstrated significantly higher in vivo tumor malignancies than parental MKN45-GFP in ascites induction and liver -invasion in mice. We have identified putative gastric tumor metastasis-associated, as well as novel genes. These genes and their protein products are to be further explored for their functional roles associated with tumor metastasis. The molecular profiles of these identified genes, gene transcripts and proteins in the patient specimens are likely to be useful biomarkers for diagnostic, therapeutic and/or prognostics. Most importantly, they may be used as molecular targets for the discovery of antitumor drugs against human gastric cancer metastasis.
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Affiliation(s)
- Tsung-Fan Tuan
- Graduate Institute of Medical Sciences, College of Medicine, Taipei Medical University, Taipei, Taiwan, R.O.C
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