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Zisook S, Moutier CY, Rush AJ, Johnson GR, Tal I, Chen PJ, Davis LL, Hicks PB, Wilcox J, Planeta B, Lauro KW, Scrymgeour AA, Kasckow J, Mohamed S. Effect of next-step antidepressant treatment on suicidal ideation: findings from the VAST-D trial. Psychol Med 2024; 54:1172-1183. [PMID: 37859623 DOI: 10.1017/s0033291723003008] [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] [Indexed: 10/21/2023]
Abstract
BACKGROUND Major depressive disorder (MDD) contributes to suicide risk. Treating MDD effectively is considered a key suicide prevention intervention. Yet many patients with MDD do not respond to their initial medication and require a 'next-step'. The relationship between next-step treatments and suicidal thoughts and behaviors is uncharted. METHOD The VA Augmentation and Switching Treatments for Depression trial randomized 1522 participants to one of three next-step treatments: Switching to Bupropion, combining with Bupropion, and augmenting with Aripiprazole. In this secondary analysis, features associated with lifetime suicidal ideation (SI) and attempts (SA) at baseline and current SI during treatment were explored. RESULTS Compared to those with SI only, those with lifetime SI + SA were more likely to be female, divorced, or separated, unemployed; and to have experienced more childhood adversity. They had a more severe depressive episode and were more likely to respond to 'next-step' treatment. The prevalence of SI decreased from 46.5% (694/1492) at baseline to 21.1% (315/1492) at end-of-treatment. SI during treatment was associated with baseline SI; low positive mental health, more anxiety, greater severity and longer duration of current MDD episode; being male and White; and treatment with S-BUP or C-BUP as compared to A-ARI. CONCLUSION SI declines for most patients during next-step medication treatments. But about 1 in 5 experienced emergent or worsening SI during treatment, so vigilance for suicide risk through the entire 12-week acute treatment period is necessary. Treatment selection may affect the risk of SI.
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Affiliation(s)
- Sidney Zisook
- University of California San Diego, San Diego, CA, USA
- VA San Diego Healthcare System, San Diego, CA, USA
| | | | - A John Rush
- Duke Medical School, Durham, NC, USA
- Duke-National University of Singapore, Singapore
| | - Gary R Johnson
- Cooperative Studies Program Coordinating Center, VA Connecticut Healthcare System, West Haven, CT, USA
| | - Ilanit Tal
- VA San Diego Healthcare System, San Diego, CA, USA
| | - P J Chen
- Department of Psychiatry, VA Northeast Ohio Healthcare System, and Case Western Reserve University School of Medicine, Cleveland, OH, USA
| | - Lori L Davis
- Tuscaloosa VA Medical Center, Tuscaloosa, AL, USA
| | - Paul B Hicks
- Department of Psychiatry, Texas A&M College of Medicine, Temple, TX, USA
| | - James Wilcox
- Department of Veterans Affairs, Phoenix, AZ, USA
| | - Beata Planeta
- Cooperative Studies Program Coordinating Center, VA Connecticut Healthcare System, West Haven, CT, USA
| | | | - Alexandra A Scrymgeour
- Cooperative Studies Program Clinical Research Pharmacy Coordinating Center, Albuquerque, NM, USA
| | - John Kasckow
- University of Pittsburgh Physicians, Pittsburgh, PA, USA
| | - Somaia Mohamed
- Veterans Affairs (VA) New England Mental Illness Research, Education, and Clinical Center, VA Connecticut Healthcare System, West Haven, CT, USA
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2
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Hwang YT, Xie SP, Chen PJ, Tseng HY, Deser C. Contribution of anthropogenic aerosols to persistent La Niña-like conditions in the early 21st century. Proc Natl Acad Sci U S A 2024; 121:e2315124121. [PMID: 38252827 PMCID: PMC10835045 DOI: 10.1073/pnas.2315124121] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Accepted: 12/08/2023] [Indexed: 01/24/2024] Open
Abstract
The discrepancy between the observed lack of surface warming in the eastern equatorial Pacific and climate model projections of an El Niño-like warming pattern confronts the climate research community. While anthropogenic aerosols have been suggested as a cause, the prolonged cooling trend over the equatorial Pacific appears in conflict with Northern Hemisphere aerosol emission reduction since the 1980s. Here, using CESM, we show that the superposition of fast and slow responses to aerosol emission change-an increase followed by a decrease-can sustain the La Niña-like condition for a longer time than expected. The rapid adjustment of Hadley Cell to aerosol reduction triggers joint feedback between low clouds, wind, evaporation, and sea surface temperature in the Southeast Pacific, leading to a wedge-shaped cooling that extends to the central equatorial Pacific. Meanwhile, the northern subtropical cell gradually intensifies, resulting in equatorial subsurface cooling that lasts for decades.
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Affiliation(s)
- Yen-Ting Hwang
- Department of Atmospheric Sciences, National Taiwan University, Taipei 10617, Taiwan
| | - Shang-Ping Xie
- Scripps Institute of Oceanography, University of California San Diego, La Jolla, CA 92093
| | - Po-Ju Chen
- Department of Atmospheric Sciences, National Taiwan University, Taipei 10617, Taiwan
- Department of Atmospheric, Oceanic, and Earth Sciences, George Mason University, Fairfax, VA 22030
| | - Hung-Yi Tseng
- Department of Atmospheric Sciences, National Taiwan University, Taipei 10617, Taiwan
| | - Clara Deser
- Climate and Global Dynamics Division, National Center for Atmospheric Research, Boulder, CO 80305
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3
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Lin WC, Chen PJ, Yim S, Wang HH, Liao PA, Tai CY, Yen MH. The safety and response of CT guided percutaneous cryoablation for lung nodules by 17-gauge needles. BMC Med Imaging 2023; 23:151. [PMID: 37814246 PMCID: PMC10561456 DOI: 10.1186/s12880-023-01110-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/15/2023] [Accepted: 09/25/2023] [Indexed: 10/11/2023] Open
Abstract
BACKGROUND The safety and efficacy of 17-gauge needles used in CT-guided percutaneous cryoablation for lung nodules were explored in this study. The purpose of the study was to compare the findings with earlier research and multi-center clinical trials that used various needle sizes. METHODS Between 2016 and 2020, a retrospective study was conducted with approval from the institutional review board. A total of 41 patients were enrolled, and 71 lung nodules were treated in 63 cryoablation procedures using local anesthesia. Complication rates were recorded, and overall survival rates as well as tumor progression-free rates were calculated using the Kaplan-Meier method. RESULTS Self-limited hemoptysis was caused by 12.9% of the procedures, and drainage was required for pneumothoraces resulting from 11.3% of them. The overall survival rates at one, two, three, and four years were 97%, 94%, 82%, and 67%, respectively. The tumor progression-free rates at one, two, three, and four years were 86.2%, 77%, 74%, and 65%, respectively. CONCLUSION Cryoablation for lung nodules using 17-Gauge needles can achieve similar rates of survival and tumor control rates, similar or even lower complication rates as compared with other studies and multi-center trials using mixed sized needles.
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Affiliation(s)
- Wei-Chan Lin
- School of Medicine, Fu-Jen Catholic University, New Taipei City, 24205, Taiwan.
- Department of Radiology, Cathay General Hospital, No.280 Sec 4 Ren-Ai Rd, Taipei, 10630, Taiwan.
| | - Po-Ju Chen
- School of Medicine, Fu-Jen Catholic University, New Taipei City, 24205, Taiwan
- Department of Chest Surgery, Cathay General Hospital, Taipei City, 10630, Taiwan
| | - Shelly Yim
- School of Medicine, Fu-Jen Catholic University, New Taipei City, 24205, Taiwan
- Department of Chest Surgery, Cathay General Hospital, Taipei City, 10630, Taiwan
| | - Hsueh-Han Wang
- School of Medicine, Fu-Jen Catholic University, New Taipei City, 24205, Taiwan
- Department of Radiology, Cathay General Hospital, No.280 Sec 4 Ren-Ai Rd, Taipei, 10630, Taiwan
| | - Pen-An Liao
- School of Medicine, Fu-Jen Catholic University, New Taipei City, 24205, Taiwan
- Department of Radiology, Cathay General Hospital, No.280 Sec 4 Ren-Ai Rd, Taipei, 10630, Taiwan
| | - Chia-Yu Tai
- School of Medicine, Fu-Jen Catholic University, New Taipei City, 24205, Taiwan
- Department of Radiology, Cathay General Hospital, No.280 Sec 4 Ren-Ai Rd, Taipei, 10630, Taiwan
| | - Ming-Hong Yen
- School of Medicine, Fu-Jen Catholic University, New Taipei City, 24205, Taiwan
- Department of Chest Surgery, Cathay General Hospital, Taipei City, 10630, Taiwan
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Valenzuela IMPY, Chen PJ, Barden J, Kosloski O, Akaaboune M. Distinct roles of the dystrophin-glycoprotein complex: α-dystrobrevin and α-syntrophin in the maintenance of the postsynaptic apparatus of the neuromuscular synapse. Hum Mol Genet 2022; 31:2370-2385. [PMID: 35157076 PMCID: PMC9307313 DOI: 10.1093/hmg/ddac041] [Citation(s) in RCA: 3] [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] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/12/2021] [Revised: 01/25/2022] [Accepted: 02/09/2022] [Indexed: 02/02/2023] Open
Abstract
α-syntrophin (α-syn) and α-dystrobrevin (α-dbn), two components of the dystrophin-glycoprotein complex, are essential for the maturation and maintenance of the neuromuscular junction (NMJ) and mice deficient in either α-syn or α-dbn exhibit similar synaptic defects. However, the functional link between these two proteins and whether they exert distinct or redundant functions in the postsynaptic organization of the NMJ remain largely unknown. We generated and analyzed the synaptic phenotype of double heterozygote (α-dbn+/-, α-syn+/-), and double homozygote knockout (α-dbn-/-; α-syn-/-) mice and examined the ability of individual molecules to restore their defects in the synaptic phenotype. We showed that in double heterozygote mice, NMJs have normal synaptic phenotypes and no signs of muscular dystrophy. However, in double knockout mice (α-dbn-/-; α-syn-/-), the synaptic phenotype (the density, the turnover and the distribution of AChRs within synaptic branches) is more severely impaired than in single α-dbn-/- or α-syn-/- mutants. Furthermore, double mutant and single α-dbn-/- mutant mice showed more severe exercise-induced fatigue and more significant reductions in grip strength than single α-syn-/- mutant and wild-type. Finally, we showed that the overexpression of the transgene α-syn-GFP in muscles of double mutant restores primarily the abnormal extensions of membrane containing AChRs that extend beyond synaptic gutters and lack synaptic folds, whereas the overexpression of α-dbn essentially restores the abnormal dispersion of patchy AChR aggregates in the crests of synaptic folds. Altogether, these data suggest that α-syn and α-dbn act in parallel pathways and exert distinct functions on the postsynaptic structural organization of NMJs.
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Affiliation(s)
| | - Po-Ju Chen
- Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, MI, USA
| | - Joseph Barden
- Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, MI, USA
| | - Olivia Kosloski
- Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, MI, USA
| | - Mohammed Akaaboune
- Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, MI, USA
- Program in Neuroscience, University of Michigan, Ann Arbor, MI, USA
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5
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Ho JT, Liang CC, Chen PJ. First Report of Root-Knot Nematode Meloidogyne enterolobii on Cockscomb ( Celosia argentea var. cristata) in Taiwan. Plant Dis 2022; 106:PDIS10212126PDN. [PMID: 34854766 DOI: 10.1094/pdis-10-21-2126-pdn] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Affiliation(s)
- J-T Ho
- Department of Plant Pathology, National Chung Hsing University, Taichung 40223, Taiwan
| | - C-C Liang
- Department of Plant Pathology, National Chung Hsing University, Taichung 40223, Taiwan
| | - P J Chen
- Department of Plant Pathology, National Chung Hsing University, Taichung 40223, Taiwan
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6
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Liang CC, Chen PJ. First Report of Root-Knot Nematode Meloidogyne enterolobii on Poinsettia 'Luv U Pink' in Taiwan. Plant Dis 2022; 106:PDIS09211899PDN. [PMID: 34818910 DOI: 10.1094/pdis-09-21-1899-pdn] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/13/2023]
Affiliation(s)
- C-C Liang
- Department of Plant Pathology, National Chung Hsing University, Taichung 40223, Taiwan
| | - P J Chen
- Department of Plant Pathology, National Chung Hsing University, Taichung 40223, Taiwan
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7
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Huang WC, Lin YC, Chen PJ, Hsu NT, Tu CL, Chang TS, Hung CH, Kee KM, Chao WH, Lu SN. Community-Based Screening for Hepatitis B and C Infectivity Using Two Quantitative Antigens to Identify Endemic Townships. Viruses 2022; 14:v14020304. [PMID: 35215896 PMCID: PMC8879708 DOI: 10.3390/v14020304] [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] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2021] [Revised: 01/25/2022] [Accepted: 01/30/2022] [Indexed: 02/01/2023] Open
Abstract
Screening and linkage to care are essential to achieve viral hepatitis elimination before 2030. The accurate identification of endemic areas is important for controlling diseases with geographic aggregation. Viral activity drives prognosis of chronic hepatitis B and hepatitis C virus infection. This screening was conducted in Chiayi County from 2018–2019. All residents aged 30 years or older were invited to participate in quantitative HBsAg (qHBsAg) and HCV Ag screening. Among the 4010 participants (male:female = 1630:2380), the prevalence of qHBsAg and HCV Ag was 9.9% (396/4010) and 4.1% (163/4010), respectively. High-prevalence townships were identified, three for qHBsAg > 15% and two for HCV Ag > 10%. The age-specific prevalence of qHBsAg was distributed in an inverse U-shape with a peak (16.0%, 68/424) for subjects in their 40 s; for HCV, prevalence increased with age. Concentrations of qHBsAg < 200 IU/mL were found in 54% (214/396) of carriers. The rate of oral antiviral treatment for HCV was 75.5% (114/151), with subjects younger than 75 years tending to undergo treatment (85.6% vs. 57.4%, p < 0.001). QHBsAg and HCV Ag core antigens can reflect the concentration of the viral load, which serves as a feasible screening tool. Using quantitative antigen screening for hepatitis B and C in community-based screening, two hyperendemic townships were identified from an endemic county.
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Affiliation(s)
- Wei-Cheng Huang
- Department of Geriatric, Chang Gung Memorial Hospital Chiayi Branch, Puzi 61363, Taiwan;
- Department of Family Medicine, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 833253, Taiwan;
| | - Yu-Chen Lin
- Chiayi County Health Bureau, Taibao 60044, Taiwan; (Y.-C.L.); (W.-H.C.)
| | - Po-Ju Chen
- Department of Family Medicine, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 833253, Taiwan;
| | - Nien-Tzu Hsu
- Biostatistics Center, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 833253, Taiwan;
| | - Chia-Ling Tu
- Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital Chiayi Branch, Puzi 61363, Taiwan; (C.-L.T.); (T.-S.C.)
| | - Te-Sheng Chang
- Department of Gastroenterology and Hepatology, Chang Gung Memorial Hospital Chiayi Branch, Puzi 61363, Taiwan; (C.-L.T.); (T.-S.C.)
- College of Medicine, Chang Gung University, Taoyuan 333323, Taiwan; (C.-H.H.); (K.-M.K.)
| | - Chao-Hung Hung
- College of Medicine, Chang Gung University, Taoyuan 333323, Taiwan; (C.-H.H.); (K.-M.K.)
- Division of Hepato-Gastroenterology, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 833253, Taiwan
| | - Kwong-Ming Kee
- College of Medicine, Chang Gung University, Taoyuan 333323, Taiwan; (C.-H.H.); (K.-M.K.)
- Division of Hepato-Gastroenterology, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 833253, Taiwan
| | - Wen-Hua Chao
- Chiayi County Health Bureau, Taibao 60044, Taiwan; (Y.-C.L.); (W.-H.C.)
| | - Sheng-Nan Lu
- College of Medicine, Chang Gung University, Taoyuan 333323, Taiwan; (C.-H.H.); (K.-M.K.)
- Division of Hepato-Gastroenterology, Department of Internal Medicine, Kaohsiung Chang Gung Memorial Hospital, Kaohsiung 833253, Taiwan
- Taiwan National Hepatitis C Program Office, Ministry of Health and Welfare, Taipei 115204, Taiwan
- Correspondence: ; Tel.: +886-7-731-7123 (ext. 8301); Fax: +866-7-732-2402
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8
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Liang CC, Chiu CW, Chen PJ. First Report of a Sheathoid Nematode ( Hemicriconemoides litchi) on Longan in Taiwan. Plant Dis 2021; 105:2256. [PMID: 33565889 DOI: 10.1094/pdis-07-20-1453-pdn] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/12/2023]
Affiliation(s)
- C-C Liang
- Department of Plant Pathology, National Chung Hsing University, Taichung 40223, Taiwan
| | - C-W Chiu
- Department of Plant Pathology, National Chung Hsing University, Taichung 40223, Taiwan
| | - P J Chen
- Department of Plant Pathology, National Chung Hsing University, Taichung 40223, Taiwan
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9
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Wang YC, Chen PJ, Shi H, Shi W. Travel for mindfulness through Zen retreat experience: A case study at Donghua Zen Temple. Tour Manag 2021; 83:104211. [PMID: 32895588 PMCID: PMC7468537 DOI: 10.1016/j.tourman.2020.104211] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 08/06/2020] [Revised: 08/19/2020] [Accepted: 08/20/2020] [Indexed: 05/11/2023]
Abstract
This study seeks to contribute knowledge of the Zen retreat experience unique to Buddhist tourism. The research setting is the Zen retreats found at the Donghua Zen Temple in China. This study examined feedback obtained from 520 tourists who stayed at Zen retreats. Zen retreat organizer insights were obtained through online discussions. This study identified four motivations for, and three outcomes of, staying at Zen retreats. Within the Zen retreat experience, this study clarified four themes in knowledge growth (mingxin), three themes in spiritual growth (jianxing), and two mechanisms to foster knowledge and spiritual growth. This study further proposed a figure demonstrating Zen practitioners' lifelong journey, and a figure categorizing tourists in Buddhist tourism into Zen tourism, Zen lifestyle, and Zen retreat by level of involvement.
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Affiliation(s)
- Yao-Chin Wang
- School of Human Environmental Sciences, University of Arkansas, Fayetteville, AR, 72701, USA
| | - Po-Ju Chen
- Institute of Socio-Economic Research, Duy Tan University, 3 Quang Trung, Da Nang, Viet Nam
- Department of Hospitality and Tourism Administration, School of Business, North Carolina Central University, 1801 Fayetteville St., Durham, NC, 27707, USA
| | - Huiming Shi
- Donghua Zen Temple, Wengyuan County, Shaoguan City, Guangdong Province, 512000, China
| | - Wanxing Shi
- Donghua Zen Temple, Wengyuan County, Shaoguan City, Guangdong Province, 512000, China
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10
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Kalargyrou V, Pettinico W, Chen PJ. Attitudes toward people with physical disabilities: An examination of social context, discipline, disability type, and demographics. JVR 2021. [DOI: 10.3233/jvr-201124] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/15/2022]
Abstract
BACKGROUND: Despite the existence of studies examining attitudes toward people with disabilities (PWDs) in a workplace context, little is known about attitudes in other social contexts such as dating and marriage. OBJECTIVE: The purpose of this study is threefold. First, the study seeks to examine how social context (i.e., work, dating, marriage) influences attitudes toward people with physical disabilities (PWPDs). Second, it examines potential influence of participant characteristics (i.e., gender, major, disability education, and frequency of contact). Third, it explores whether attitudes vary across different disability types. METHODS: To measure the influence of social context on attitudes toward PWPDs, the study used the Disability Social Relationship Scale (DSR), which was completed by 395 undergraduate students in Austria. RESULTS: Participants demonstrate more positive attitudes toward PWPDs in the workplace than in the social contexts of dating and marriage. Participants who had more frequent contact with PWDs (i.e., in a workplace/service setting or in a personal relationship) demonstrate more positive attitudes toward PWPDs. Participants have more positive attitudes toward some disability types (i.e., deafness/hardness of hearing) than others (blindness/visual impairment). CONCLUSION: We offer recommendations for future research and practice aimed at creating awareness of biases toward PWDs while promoting social justice.
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Affiliation(s)
| | | | - Po-Ju Chen
- Institute of Socio-Economic Research (ISER), Duy Tan University, Danang, Vietnam
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11
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Chen PJ, Lu YC, Wang PM, Huang CF, Loke SS. Factors associated with hyperhomocysteinemia in relatively healthy Taiwanese adults: A retrospective medical record study. Medicine (Baltimore) 2021; 100:e23829. [PMID: 33545948 PMCID: PMC7837971 DOI: 10.1097/md.0000000000023829] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/10/2020] [Accepted: 11/20/2020] [Indexed: 12/03/2022] Open
Abstract
Elevated homocysteine levels have been proposed as a risk factor for cardiovascular disease. The aim of this study was to evaluate factors associated with hyperhomocysteinemia in relatively healthy Taiwanese adults.A retrospective cross-sectional study was conducted using data from the health examination database in a medical center located in southern Taiwan. Hyperhomocysteinemia was defined as a plasma homocysteinemia level >15 μmol/L. Factors associated with hyperhomocysteinemia were evaluated using univariate and multiple stepwise logistic regression analyses.A total of 817 adults with a mean age of 55.5 years were included in the present study, and of them, 67 (8.2%) had hyperhomocysteinemia. Results from multiple logistic regression analysis showed that male sex (Odd ratio [OR] = 12.28, 95% CI = 2.94-51.27, P = .001), advanced age (OR = 1.37 per 10 years, 95% CI = 1.06-1.77, P = .017), triglycerides (OR = 1.02 per 10 mg/dL, 95% CI = 1.01-1.04, P = .010), and uric acid (OR = 1.27, 95% CI = 1.09-1.49, P = .004) were significantly and independently associated with hyperhomocysteinemia.In this retrospective medical record study, male sex, advanced age, higher plasma level of triglyceride, and uric acid were significantly associated with hyperhomocysteinemia in relatively healthy Taiwanese adults.
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Affiliation(s)
- Po-Ju Chen
- Department of Family Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University, College of Medicine, Kaohsiung City
| | - Yueh-Chien Lu
- Department of Family Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University, College of Medicine, Kaohsiung City
| | - Pei-Ming Wang
- Department of Family Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University, College of Medicine, Kaohsiung City
| | - Chih-Fang Huang
- Department of Family Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University, College of Medicine, Kaohsiung City
- Department of Long Term Care and Management, Chung Hwa University of Medical Technology, Tainan City, Taiwan
| | - Song-Seng Loke
- Department of Family Medicine, Kaohsiung Chang Gung Memorial Hospital and Chang Gung University, College of Medicine, Kaohsiung City
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12
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Li X, Zheng C, Nowak ER, Haughey K, Shull RD, Chen PJ, Pong PWT. Tunable magnetic low-frequency noise in magnetic tunnel junctions: effect of shape anisotropy. J Phys Condens Matter 2020; 32:495805. [PMID: 32955020 DOI: 10.1088/1361-648x/abb443] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/11/2023]
Abstract
The intrinsic magnetic low-frequency noise (LFN) is of fundamental scientific interest to the study of magnetic tunnel junctions (MTJs). To gain insight into its mechanism, the fluctuation-dissipation theorem, which describes the linear relation between magnetic LFN and magnetic sensitivity product, has been utilized. However, deviation from the linear correlation has been reported in some studies. To understand and effectively control the magnetic LFN, a more elaborate analytical description and further experimental validation are required. In this work, the magnetic LFN contributed from the magnetization fluctuation in the pinned layer of MTJs with various shape anisotropies was investigated. The MTJs with different shape anisotropies, achieved by altering their aspect ratios, possessed distinct demagnetizing factors. Large magnetic noise was correlated with the increase of magnetic phase loss of ferromagnetic layers during magnetization reversal at which magnetization fluctuation was enhanced. Upon increasing the shape anisotropy, a notable reduction of the magnetic phase loss in the antiparallel (AP) state was observed while it exhibited a slight decrease in the parallel (P) state, revealing that the increase of the shape anisotropy caused a more pronounced suppression of the equilibrium magnetization fluctuation in the AP state. These phenomena were computationally validated by constructing a macrospin model to describe the thermally-induced magnetization fluctuation in the pinned layer. This work reveals the physical relation between MTJ shape anisotropy and magnetic LFN. The effect of the shape anisotropy on the magnetic LFN can be extended to other types of in-plane uniaxial anisotropies.
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Affiliation(s)
- Xu Li
- Fujian Provincial Key Laboratory of Semiconductors and Applications, Collaborative Innovation Center for Optoelectronic Semiconductors and Efficient Devices, Department of Physics, Xiamen University, Xiamen 361005, People's Republic of China. These authors contributed equally to this work
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13
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Chen PJ, Zelada D, Belhasan DC, Akaaboune M. Phosphorylation of α-dystrobrevin is essential for αkap accumulation and acetylcholine receptor stability. J Biol Chem 2020; 295:10677-10688. [PMID: 32532815 DOI: 10.1074/jbc.ra120.013952] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2020] [Revised: 06/08/2020] [Indexed: 01/26/2023] Open
Abstract
The maintenance of a high density of the acetylcholine receptor (AChR) is the hallmark of the neuromuscular junction. Muscle-specific anchoring protein (αkap) encoded within the calcium/calmodulin-dependent protein kinase IIα (CAMK2A) gene is essential for the maintenance of AChR clusters both in vivo and in cultured muscle cells. The underlying mechanism by which αkap is maintained and regulated remains unknown. Here, using human cell lines, fluorescence microscopy, and pulldown and immunoblotting assays, we show that α-dystrobrevin (α-dbn), an intracellular component of the dystrophin glycoprotein complex, directly and robustly promotes the stability of αkap in a concentration-dependent manner. Mechanistically, we found that the phosphorylatable tyrosine residues of α-dbn are essential for the stability of α-dbn itself and its interaction with αkap, with substitution of three tyrosine residues in the α-dbn C terminus with phenylalanine compromising the αkap-α-dbn interaction and significantly reducing both αkap and α-dbn accumulation. Moreover, the αkap-α-dbn interaction was critical for αkap accumulation and stability. We also found that the absence of either αkap or α-dbn markedly reduces AChRα accumulation and that overexpression of α-dbn or αkap in cultured muscle cells promotes the formation of large agrin-induced AChR clusters. Collectively, these results indicate that the stability of αkap and α-dbn complex plays an important role in the maintenance of high-level expression of AChRs.
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Affiliation(s)
- Po-Ju Chen
- Department of Molecular, Cellular and Developmental Biology, University of Michigan, Ann Arbor, Michigan, USA
| | - Diego Zelada
- Department of Cell Biology, Universidad de Concepción, Concepción, Chile
| | - Dina Cheryne Belhasan
- Department of Molecular, Cellular and Developmental Biology, University of Michigan, Ann Arbor, Michigan, USA
| | - Mohammed Akaaboune
- Department of Molecular, Cellular and Developmental Biology, University of Michigan, Ann Arbor, Michigan, USA .,Program in Neuroscience, University of Michigan, Ann Arbor, Michigan, USA
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Wang L, Zhao YM, Sun TT, Xu YL, Li SJ, Zhang XY, Cai Y, Li YH, Li ZW, Chen PJ, Peng YF, Wang WH, Wu AW. [Total neoadjuvant therapy followed by watch and wait approach or organ preservation for MRI stratified low-risk rectal cancer: early result from a prospective, single arm trial]. Zhonghua Wei Chang Wai Ke Za Zhi 2020; 23:258-265. [PMID: 32192305 DOI: 10.3760/cma.j.cn.441530-20200222-00070] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the safety and efficacy of watch and wait strategy and organ preservation surgery after total neoadjuvant treatment for MRI stratified low-risk rectal cancer. Methods: A prospective single arm phase Ⅱ trial developed at Department of Gastrointestinal Cancer, Peking University Cancer Hospital & Institute was preliminarily analyzed. Subjects were enrolled from August 2016 to January 2019. Low-risk rectal cancer with following MRI features were recruited: mid-low tumor, mrT2-3b, MRF (-), EMVI (-), CRM (-), differentiation grade 1-3. Patients received intensity-modulated radiotherapy (IMRT) 50.6 Gy/22f with concurrent capecitabine and 4 cycles of consolidation CAPEOX. Patients with cCR/near-cCR confirmed by physical examination, rectal MRI, endoscopy, and serum CEA were recommended for watch & wait approach or local excision (LE). The main study outcomes were 2-year organ preservation rate (OPR) and sphincter preservation rate (SPR). Results: Thirty-eight patients were eligible for analysis, including 24 males and 14 females with median age of 56 years; 9 cases of mrT2 (23.7%), 14 cases of mrT3a (36.8%) and 15 cases of mrT3b (39.5%); 5 cases of well differentiated adenocarcinoma (13.2%), 32 cases of moderately differentiated adenocarcinoma (84.2%) and 1 case of mucinous adenocarcinoma (2.6%). Carcinoemobryonic antigen (CEA) was elevated before treatment in 1 case. One case (2.6%) of grade 3 radiation dermatitis occurred during IMRT; 18 cases (47.4%) occurred grade 3 to 4 adverse events during consolidation chemotherapy. After total neoadjuvant treatment, the cCR and near-cCR rates were 42.1% (16/38) and 23.7% (9/38), respectively, while non-cCR rate was 34.2% (13/38). Twenty patients (20/38, 52.6%) of cCR or near-cCR underwent watch & wait approach, with a local regrowth rate of 20% (4/20). Four patients received LE, including one salvage LE. Thirteen patients (4 were ypCR) received radical resection, including 10 cases of initial low anterior resections (LAR), 1 cases of initial abdominal perineal resection (APR) and 2 cases of salvage LAR, four patients refused operation. The median follow-up time was 23.5 (8.5-38.3) months. At the last interview of follow-up, the OPR and SPR were 52.6% (20/38) and 84.2% (32/38), respectively. Only one patient developed lung metastasis and no local recurrence occurred after radical resection or LE. Conclusion: Total neoadjuvant treatment for low-risk rectal cancer achieves high cCR/near-cCR rate, with increased probability of receiving watch and wait approach and organ preservation in this subgroup.
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Affiliation(s)
- L Wang
- Department of Gastrointestinal Cancer, Unit III, Peking University Cancer Hospital & Institute, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Bejing 100142, China
| | - Y M Zhao
- Department of Gastrointestinal Cancer, Unit III, Peking University Cancer Hospital & Institute, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Bejing 100142, China
| | - T T Sun
- Department of Gastrointestinal Cancer, Unit III, Peking University Cancer Hospital & Institute, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Bejing 100142, China
| | - Y L Xu
- Department of Gastrointestinal Cancer, Unit III, Peking University Cancer Hospital & Institute, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Bejing 100142, China
| | - S J Li
- Endoscopy Center, Peking University Cancer Hospital & Institute, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Bejing 100142, China
| | - X Y Zhang
- Department of Radiation Oncology, Peking University Cancer Hospital & Institute, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Bejing 100142, China
| | - Y Cai
- Department of Radiology, Peking University Cancer Hospital & Institute, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Bejing 100142, China
| | - Y H Li
- Department of Radiology, Peking University Cancer Hospital & Institute, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Bejing 100142, China
| | - Z W Li
- Department of Pathology, Peking University Cancer Hospital & Institute, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Bejing 100142, China
| | - P J Chen
- Department of Gastrointestinal Cancer, Unit III, Peking University Cancer Hospital & Institute, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Bejing 100142, China
| | - Y F Peng
- Department of Gastrointestinal Cancer, Unit III, Peking University Cancer Hospital & Institute, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Bejing 100142, China
| | - W H Wang
- Department of Radiology, Peking University Cancer Hospital & Institute, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Bejing 100142, China
| | - A W Wu
- Department of Gastrointestinal Cancer, Unit III, Peking University Cancer Hospital & Institute, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Bejing 100142, China
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15
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Chen PJ, Wang L, Chen N, Lu XY, Wang HS, He X, Wang Z, Wu AW. [Short-term outcomes and prognosis of palliative surgery for malignant bowel obstruction caused by peritoneal metastasis of colorectal cancer]. Zhonghua Wei Chang Wai Ke Za Zhi 2019; 22:1051-1057. [PMID: 31770836 DOI: 10.3760/cma.j.issn.1671-0274.2019.11.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Indexed: 11/05/2022]
Abstract
Objective: To explore the short-term efficacy and prognosis of palliative surgical treatment for malignant bowel obstruction (MBO) caused by peritoneal metastasis of colorectal cancer (mCRC). Methods: A retrospective cohort study was conducted. The inclusion criteria for patients were as follows: (1) primary colorectal cancer; (2) massive peritoneal metastasis; (3)obstructive site located below Treitz ligament by imaging; (4) obstruction refractory to conservative treatment; (5) estimated rese survival time more than 2 months; (6) patients and their families had strong willingness for operation; (7) surgical treatment included stoma/bypass and debulking surgery. In accordance with the above criteria, clinicopathological data of 46 patients undergoing palliative surgery at Peking University Gastrointestinal Cancer Center, Unit III from January 2016 to October 2018 were retrospectively collected. Postoperative symptomatic relief rate, morbidity of complication within 30 days, complication classification (Clavien-Dindo classification), mortality and survival after operation were analyzed. Kaplan-Meier method was used to evaluate survival and Cox regression analysis was used to identify prognostic factors. Results: Among 46 patients, 30 were male and 16 were female with median age of 63 (19-87) years; 23 patients received stoma/bypass surgery (stoma/bypass group), and 23 cases received tumor debulking surgery (debulking group). The overall symptom relief rate was 76.1% (35/46), while symptom relief rate in the debulking group was 91.3% (21/23), which was significantly higher than 60.9% (14/23) in the stoma/bypass group (χ(2)=4.301, P=0.038). Postoperative complications occurred in 25 patients. The complication rate was 52.2% (12/23) in the debulking group and 56.5% (13/23) in the stoma/bypass group, without statistically significant difference (χ(2)=0.088, P=0.767). Morbidity of complication beyond grade III was 8.7% (2/23) and 13.0% (3/23) in the debulking group and stoma/bypass group respectively, without statistically significant difference (χ(2)=0.224, P=0.636). Four patients died within 30 days after operation, 2 (8.7%) in each group. Twenty-four patients underwent 1-8 cycles of chemotherapy ± targeting therapy (regimens: CapeOX ± Bevacizumab, FOLFOX/FOLFIRI ± Bevacizumab/Cetuximab), including 10 cases in the stoma/bypass group and 14 cases in the debulking group. Two patients of debulking group received postoperative radiotherapy and chemotherapy (50.6 Gy/22 f, with concurrent oral capecitabine). Till the last follow up of April 2019, 34 patients died (34/46, 73.9%) with a median overall survival time of 6.4 months, and the 6-month and 1-year survival rate was 54.5% and 29.2% respectively. The median survival time in the debulking group was significantly longer than that in the stoma/bypass group (11.5 months vs. 5.2 months, χ(2)=5.117, P=0.024). The median survival time of the 35 patients with symptomatic relief after operation was significant longer than that of 11 patients without relief (7.1 months vs 5.1 months, χ(2)=3.844, P=0.050). Multivariate analysis showed stoma/bypass surgery (HR=2.917, 95%CI:1.357-6.269, P=0.006) and greater omental metastasis (HR=4.060, 95%CI:1.419-11.617, P=0.009) were independent risk factors associated with prognosis of patients with MBO caused by peritoneal mCRC. Conclusions: For patients of MBO caused by peritoneal mCRC, tumor debulking surgery may achieve higher symptom relief rate and prolong survival. Greater omental metastasis indicates poor prognosis.
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Affiliation(s)
- P J Chen
- Key laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Gastrointestinal Cancer Center, Unit III, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - L Wang
- Key laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Gastrointestinal Cancer Center, Unit III, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - N Chen
- Key laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Gastrointestinal Cancer Center, Unit III, Peking University Cancer Hospital & Institute, Beijing 100142, China
| | - X Y Lu
- Department of Gastrointestinal Cancer Surgery, Unit III, Beijing Nanjiao Cancer Hospital, Beijing 100076, China
| | - H S Wang
- Department of Gastrointestinal Cancer Surgery, Unit III, Beijing Nanjiao Cancer Hospital, Beijing 100076, China
| | - X He
- Department of Gastrointestinal Cancer Surgery, Unit III, Beijing Nanjiao Cancer Hospital, Beijing 100076, China
| | - Z Wang
- Department of Gastrointestinal Cancer Surgery, Unit III, Beijing Nanjiao Cancer Hospital, Beijing 100076, China
| | - A W Wu
- Key laboratory of Carcinogenesis and Translational Research (Ministry of Education), Department of Gastrointestinal Cancer Center, Unit III, Peking University Cancer Hospital & Institute, Beijing 100142, China
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16
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Weng CF, Chen PJ, Tseng AH, Huang SH, Lee HHC. Unusual synchronous double primary treatment-naïve lung adenocarcinoma harboring T790M and L858R mutations in early-stage lung cancer. World J Surg Oncol 2019; 17:148. [PMID: 31426797 PMCID: PMC6701136 DOI: 10.1186/s12957-019-1688-3] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2019] [Accepted: 08/06/2019] [Indexed: 12/14/2022] Open
Abstract
Background Concurrent mutations of synchronous multiple primary non-small cell lung cancer (SMPNSCLC) is rare, and only a few cases have been reported. Herein, we present a case of early-stage SMPNSCLC with T790M and L858R mutations. Case presentation A 68-year-old male patient presented to the Thoracic Surgery Department due to a tumor in the right lower lung. The tumor was detected more than 5 years previously during a health examination; however, the patient ignored the problem because the clinician at that time stated that the lesion was highly likely to be benign. Chest computed topography (CT) was ordered and the images showed a well-defined tumor in the right lower lung and a faint nodular lesion over the left lower lung field. A CT-guided biopsy results showed the presence of atypical cells and positive staining of TTF-1 and CK7. Surgical intervention was performed. The right- and left-sided tumors disclosed micropapillary predominant adenocarcinoma and acinar-predominant adenocarcinoma, respectively. Both tumors were positive for TTF-1 but negative for ALK and p40. Real-time PCR analysis showed that the right-sided tumor had an epidermal growth factor receptor (EGFR) mutation presenting as point mutation T790M in exon 20, while the left-sided tumor had a point mutation L858R in exon 21 of EGFR. Conclusions Our patient’s case suggests that tumors resembling a benign pattern with central calcification may be misdiagnosed. Thus, early screening for lung cancer is important, and intensive efforts to make a diagnosis through surgical resection or biopsies to allow for tailored optimal treatment may be preferential for the best patient outcomes.
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Affiliation(s)
- Ching-Fu Weng
- Department of Thoracic Medicine, Hsinchu Cathay General Hospital, Hsinchu, Taiwan
| | - Po-Ju Chen
- Department of Thoracic Surgery, Xizhi Cathay General Hospital, New Taipei, Taiwan
| | - Ailun Heather Tseng
- Systems Biology and Bioinformatics, National Central University, Taoyuan, Taiwan
| | - Shih-Hung Huang
- Department of Pathology, Cathay General Hospital, No. 280, Sec. 4, Ren'ai Rd., Da'an Dist., 106, Taipei, Taiwan.
| | - Henry Hsin-Chung Lee
- Department of Surgery, Hsinchu Cathay General Hospital, No. 678, Sec. 2, Zhonghua Rd., East Dist., Hsinchu City, 300, Taiwan.
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Lien CC, Chen PJ, Venault A, Tang SH, Fu Y, Dizon GV, Aimar P, Chang Y. A zwitterionic interpenetrating network for improving the blood compatibility of polypropylene membranes applied to leukodepletion. J Memb Sci 2019. [DOI: 10.1016/j.memsci.2019.04.056] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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18
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Sun TT, Wang L, Yao YF, Peng YF, Zhao J, Zhan TC, Leng JH, Wang HY, Chen N, Chen PJ, Li YJ, Zhang X, Liu XZ, Zhang Y, Wu AW. ["Watch and wait" strategy after neoadjuvant therapy for rectal cancer: status survey of perceptions, attitudes and treatment selection in Chinese surgeons]. Zhonghua Wei Chang Wai Ke Za Zhi 2019; 22:550-559. [PMID: 31238634 DOI: 10.3760/cma.j.issn.1671-0274.2019.06.008] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Objective: To understand the perceptions, attitudes and treatment selection of Chinese surgeons on the "watch and wait" strategy for rectal cancer patients after achieving a clinical complete response (cCR) following neoadjuvant chemoradiotherapy (nCRT). Methods: A cross-sectional survey was used in this study. Selection of subjects: (1) Domestic public grade III A (provincial and prefecture-level) oncology hospitals or general hospitals possessing the radiotherapy department and the diagnosis and treatment qualifications for colorectal cancer. (2) Surgeons of deputy chief physician or above. Using the "Questionnaire Star" online survey platform to create a questionnaire about cognition, attitude and treatment choice of the "watch and wait" strategy after cCR following nCRT for rectal cancer. The questionnaire contained 32 questions, such as the basic information of doctor, the current status of rectal cancer surgery, the management of pathological complete remission (ypCR) after nCRT for rectal cancer, the selection of examination items for diagnosis of cCR, the selection of suitable people undergoing "watch and wait" approach, the nCRT mode for promotion of cCR, the choice of evaluation time point, the willingness to perform "watch and wait" approach and the treatment choice, and the risk and monitoring of "watch and wait" approach. A total of 116 questionnaires were sent to the respondents via WeChat between January 31 and February 19, 2019. Statistical analysis was performed using Fisher's exact test for categorical variables. Results: Forty-eight hospitals including 116 surgeons meeting criteria were enrolled, of whom 77 surgeons filled the questionnaire with a response rate of 66.4%. "Watch and wait" strategy was carried out in 76.6% (59/77) of surgeons. Seventy surgeons (90.9%) were aware of the ypCR rate of rectal cancer after preoperative nCRT and 49 surgeons (63.6%) knew the 3-year disease-free survival of patients with ypCR in their own hospitals. Fifty-five surgeons (71.4%) believed that patients with ypCR undergoing radical surgery met the treatment criteria and were not over-treated. Three most necessary examinations in diagnosing cCR were colonoscopy (96.1%, 74/77), digital rectal examination (DRE) (90.9%,70/77) and DWI-MRI (83.1%, 64/77). Responders preferred to consider a "watch and wait" strategy for patients with baseline characteristics as mrN0 (77.9%, 60/77), mrT2 (68.8%, 53/77) and well-differentiated adenocarcinoma (68.8%, 53/77). Sixty-six surgeons (85.7%) believed that long-term chemoradiotherapy (LCRT) with combination or without combination of induction and/or consolidation of the CapeOX regimen (capecitabine + oxaliplatin) should be the first choice as a neoadjuvant therapy to achieve cCR. Forty-one surgeons (53.2%) believed that a reasonable interval of judging cCR after nCRT should be ≥ 8 weeks. Forty-four surgeons (57.1%) routinely, or in most cases, informed patient the possibility of cCR and proposed to "watch and wait" strategy in the initial diagnosis of patients with non-metastatic rectal cancer. Thirteen surgeons (16.9%) would take the "watch and wait" strategy as the first choice after the patient having cCR. Fifty-two surgeons (67.5%) would be affected by the surgical method, that was to say, "watch and wait" approach would only be recommended to those patients who would achieve cCR and could not preserve the anus or underwent difficult anus-preservation surgery. Sixteen surgeons (20.8%) demonstrated that "watch and wait" strategy would not be recommended to patients with cCR regardless of whether the surgical procedure involved anal sphincter. Eleven surgeons (14.3%) believed that the main risk of "watch and wait" approach came from distant metastasis rather than local recurrence or regrowth. Twenty-nine of surgeons (37.7%) did not understand the difference between "local recurrence" and "local regrowth" during the period of "watch and wait". Twenty-six surgeons (33.8%) thought that the monitoring interval for the first 3 years of "watch and wait" strategy was 3 months, and the follow-up monitoring interval could be 6 months to 5 years. Surgeons from cancer specialist hospitals had higher approval rate, notification rate, and referral rate of "watch and wait" strategy than those from general hospitals. Thirty-one surgeons (42.5%) considered that the difficulty and concern of carrying out "watch and wait" approach in the future was the disease progress leading to medical disputes. Twenty-six surgeons (35.6%) demonstrated that their concern was lack of uniform evaluation standard for cCR. Conclusions: Chinese surgeons seem to have inadequate knowledge of non-operative management for rectal cancer patients achieving cCR after nCRT and show relatively conservative attitudes toward the strategy. Chinese consensus needs to be formed to guide the non-operative management in selected patients. Chinese Watch & Wait Database (CWWD) is also needed to establish and provide more evidence for the use of alternative procedure after a cCR following nCRT.
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Affiliation(s)
- T T Sun
- Ward III of Gastrointestinal Surgery, Key Laboratory of Carcinogenesis and Translational Research (Ministry of Education), Peking University Cancer Hospital & Institute, Beijing 100142, China
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Lazarev G, Chen PJ, Strauss J, Fontaine N, Forbes A. Beyond the display: phase-only liquid crystal on Silicon devices and their applications in photonics [Invited]. Opt Express 2019; 27:16206-16249. [PMID: 31163804 DOI: 10.1364/oe.27.016206] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/16/2023]
Abstract
Existing for almost four decades, liquid crystal on Silicon (LCOS) technology is rapidly growing into photonic applications. We review the basics of the technology, from the wafer to the driving solutions, the progress over the last decade and the future outlook. Furthermore we review the most exciting industrial and scientific applications of the LCOS technology.
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20
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Maaroufi A, Vince A, Himatt SM, Mohamed R, Fung J, Opare-Sem O, Workneh A, Njouom R, Al Ghazzawi I, Abdulla M, Kaliaskarova KS, Owusu-Ofori S, Abdelmageed MK, Adda D, Akin O, Al Baqali A, Al Dweik N, Al Ejji K, Al Kaabi S, Al Naamani K, Al Qamish J, Al Sadadi M, Al Salman J, AlBadri M, Al-Busafi SA, Al-Romaihi HE, Ampofo W, Antonov K, Anyaike C, Arome F, Bane A, Blach S, Borodo MM, Brandon SM, Bright B, Butt MT, Cardenas I, Chan HLY, Chen CJ, Chen DS, Chen PJ, Chien RN, Chuang WL, Cuellar D, Derbala M, Elbardiny AA, Estes C, Farag E, Gamkrelidze I, Garcia V, Genov J, Ghandour Z, Ghuloom M, Gomez B, Gunter J, Habeeb J, Hajelssedig O, Hamoudi W, Hrstic I, Hu CC, Huang CF, Hui YT, Jahis R, Jelev D, John AK, Kamel Y, Kao JH, Khamis J, Khattabi H, Khoudri I, Konysbekova A, Kotzev I, Lai MS, Lao WC, Layden J, Lee MH, Lesi O, Li M, Lo A, Loo CK, Lukšić B, Malu AO, Mateva L, Mitova R, Morović M, Murphy K, Mustapha B, Nde H, Nersesov A, Ngige E, Njoya O, Nonković D, Obekpa S, Oguche S, Okolo EE, Omede O, Omuemu C, Ondoa P, Phillips RO, Prokopenko YN, Razavi H, Razavi-Shearer D, Redae B, Reic T, Rinke de Wit T, Rios C, Robbins S, Roberts LR, Sanad SJ, Schmelzer JD, Sharma M, Simonova M, Su TH, Sultan K, Tan SS, Tchernev K, Tsang OTY, Tsang S, Tzeuton C, Ugoeze S, Uzochukwu B, Vi R, Wani HU, Wong VWS, Yacoub R, Yesmembetov KI, Youbi M, Yuen MF, Razavi-Shearer K. Historical epidemiology of hepatitis C virus in select countries-volume 4. J Viral Hepat 2017; 24 Suppl 2:8-24. [PMID: 29105285 DOI: 10.1111/jvh.12762] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [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: 06/19/2017] [Accepted: 07/03/2017] [Indexed: 12/11/2022]
Abstract
Due to the introduction of newer, more efficacious treatment options, there is a pressing need for policy makers and public health officials to develop or adapt national hepatitis C virus (HCV) control strategies to the changing epidemiological landscape. To do so, detailed, country-specific data are needed to characterize the burden of chronic HCV infection. In this study of 17 countries, a literature review of published and unpublished data on HCV prevalence, viraemia, genotype, age and gender distribution, liver transplants and diagnosis and treatment rates was conducted, and inputs were validated by expert consensus in each country. Viraemic prevalence in this study ranged from 0.2% in Hong Kong to 2.4% in Taiwan, while the largest viraemic populations were in Nigeria (2 597 000 cases) and Taiwan (569 000 cases). Diagnosis, treatment and liver transplant rates varied widely across the countries included in this analysis, as did the availability of reliable data. Addressing data gaps will be critical for the development of future strategies to manage and minimize the disease burden of hepatitis C.
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Affiliation(s)
- A Maaroufi
- National Institute of Health Administration, Rabat, Morocco
| | - A Vince
- Medical School University of Zagreb, University Hospital of Infectious Diseases Zagreb, Zagreb, Croatia
| | - S M Himatt
- Ministry of Public Health Qatar, Doha, Qatar
| | - R Mohamed
- University of Malaya Medical Centre, Kuala Lumpur, Malaysia
| | - J Fung
- Department of Medicine, The University of Hong Kong, Hong Kong, SAR, China
| | - O Opare-Sem
- Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - A Workneh
- Non-Communicable Diseases Programme, World Health Organization, Addis Ababa, Ethiopia.,Federal Ministry of Health, Addis Ababa, Ethiopia
| | - R Njouom
- Virology Department, Centre Pasteur of Cameroon, Yaounde, Cameroon
| | - I Al Ghazzawi
- GI and Hepatology Department, Jordan Royal Medical Services, Amman, Jordan
| | - M Abdulla
- Salmaniya Medical Complex, Manama, Bahrain
| | - K S Kaliaskarova
- Ministry of Healthcare and Social Development of the Republic of Kazakhstan, Astana, Kazakhstan.,Republican Coordination Center for Hepatology and Gastroenterology, Astana, Kazakhstan
| | | | | | - D Adda
- Civil Society Network on Hepatitis, Abuja, Nigeria.,Chagro-Care Trust (CCT), Jalingo, Nigeria
| | - O Akin
- Federal Ministry of Health, Abuja, Nigeria
| | - A Al Baqali
- Al Kindi Specialised Hospital, Manama, Bahrain
| | - N Al Dweik
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | - K Al Ejji
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | - S Al Kaabi
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | - K Al Naamani
- Division of Gastroenterology and Hepatology, Department of Medicine, Armed Forces Hospital, Muscat, Oman
| | - J Al Qamish
- Gastroenterolgy Clinic, IBN Al-Nafees Hospital, Manama, Bahrain
| | | | | | - M AlBadri
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | - S A Al-Busafi
- Division of Gastroenterology, Department of Medicine, Sultan Qaboos University Hospital, Muscat, Oman
| | | | - W Ampofo
- Noguchi Memorial Institute for Medical Research, University of Ghana, Legon, Ghana
| | - K Antonov
- University Hospital "St. Ivan Rilski", Sofia, Bulgaria
| | - C Anyaike
- Federal Ministry of Health, Abuja, Nigeria
| | - F Arome
- Advocacy for the Prevention of Hepatitis in Nigeria, Jos, Nigeria
| | - A Bane
- Gastroenterology and Hepatology, Addis Ababa University Medical School, Addis Ababa, Ethiopia.,Ethiopian Gastroenterological Association, Addis Ababa, Ethiopia
| | - S Blach
- Center for Disease Analysis (CDA), Lafayette, CO, USA
| | - M M Borodo
- Aminu Kano Teaching Hospital, Kano, Nigeria.,Bayero University, Kano, Nigeria
| | - S M Brandon
- Center for Disease Analysis (CDA), Lafayette, CO, USA
| | - B Bright
- LiveWell Initiative (LWI), Lagos, Nigeria
| | - M T Butt
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | - I Cardenas
- Communicable Diseases Division, Ministry of Health and Social Protection, Bogota, Colombia
| | - H L Y Chan
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong, SAR, China.,Institute of Digestive Disease, The Chinese University of Hong Kong, Hong Kong, SAR, China
| | | | - D S Chen
- Hepatitis Research Center, National Taiwan University Hospital, Taipei, Taiwan
| | - P J Chen
- National Taiwan University, Taipei, Taiwan
| | - R N Chien
- Liver Research Unit, Keelung Chang Gung Memorial Hospital, Keelung, Taiwan
| | - W L Chuang
- Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung City, Taiwan
| | - D Cuellar
- Department of Epidemiology and Demography, Ministry of Health and Social Protection, Bogota, Colombia
| | - M Derbala
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | | | - C Estes
- Center for Disease Analysis (CDA), Lafayette, CO, USA
| | - E Farag
- Ministry of Public Health Qatar, Doha, Qatar
| | - I Gamkrelidze
- Center for Disease Analysis (CDA), Lafayette, CO, USA
| | - V Garcia
- Ministry of Public Health, Santo Domingo, Dominican Republic
| | - J Genov
- University Hospital "Queen Joanna", Sofia, Bulgaria
| | - Z Ghandour
- BDF Hospital, Royal Medical Services, Riffa, Bahrain
| | - M Ghuloom
- Salmaniya Medical Complex, Manama, Bahrain
| | - B Gomez
- Pan American Health Organization, Washington, DC, USA
| | - J Gunter
- Center for Disease Analysis (CDA), Lafayette, CO, USA
| | - J Habeeb
- Salmaniya Medical Complex, Manama, Bahrain
| | - O Hajelssedig
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | - W Hamoudi
- Department of Gastroenterology & Hepatology, Al Bashir Hospital, Amman, Jordan.,Jordan Ministry of Health, Amman, Jordan
| | - I Hrstic
- General Hospital Pula, Pula, Croatia
| | - C C Hu
- Liver Research Unit, Keelung Chang Gung Memorial Hospital, Keelung, Taiwan
| | - C F Huang
- Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung City, Taiwan
| | - Y T Hui
- Department of Medicine, Queen Elizabeth Hospital, Hong Kong, SAR, China
| | - R Jahis
- Disease Control Division, Ministry of Health, Putrajaya, Malaysia
| | - D Jelev
- University Hospital "St. Ivan Rilski", Sofia, Bulgaria
| | - A K John
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | - Y Kamel
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar.,Department of Medicine, Miniya University, Minya, Egypt
| | - J H Kao
- Department of Internal Medicine, National Taiwan University Hospital, Taipei City, Taiwan
| | - J Khamis
- Salmaniya Medical Complex, Manama, Bahrain
| | - H Khattabi
- Eastern Mediterranean Regional Office, World Health Organization, Cairo, Egypt
| | - I Khoudri
- National Institute of Health Administration, Rabat, Morocco
| | - A Konysbekova
- Republican Diagnostic Center, Astana, Kazakhstan.,University Medical Center, Astana, Kazakhstan
| | - I Kotzev
- University Hospital "St. Marina", Varna, Bulgaria
| | - M S Lai
- Department of Medicine, North District Hospital, Hong Kong, SAR, China
| | - W C Lao
- Department of Medicine, Pamela Youde Nethersole Eastern Hospital, Hong Kong, SAR, China
| | - J Layden
- Department of Public Health Sciences, Loyola University Chicago, Chicago, IL, USA
| | - M H Lee
- Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan
| | - O Lesi
- University of Lagos, Lagos, Nigeria.,Lagos University Teaching Hospital, Lagos, Nigeria
| | - M Li
- Division of Gastroenterology and Hepatology, Department of Medicine and Geriatrics, Tuen Mun Hospital, Hong Kong, SAR, China
| | - A Lo
- Institute of Digestive Disease, The Chinese University of Hong Kong, Hong Kong, SAR, China
| | - C K Loo
- Department of Medicine and Geriatrics, Kwong Wah Hospital, Hong Kong, SAR, China
| | - B Lukšić
- Clinical Department of Infectious Diseases, Split University Hospital and Split University Medical School, Split, Croatia
| | - A O Malu
- Benue State University Teaching Hospital, Makurdi, Nigeria
| | - L Mateva
- University Hospital "St. Ivan Rilski", Sofia, Bulgaria
| | - R Mitova
- University Hospital "Queen Joanna", Sofia, Bulgaria
| | - M Morović
- Department of Infectious Diseases, Zadar General Hospital, Zadar, Croatia
| | - K Murphy
- Center for Disease Analysis (CDA), Lafayette, CO, USA
| | | | - H Nde
- Center for Disease Analysis (CDA), Lafayette, CO, USA
| | - A Nersesov
- National Research Institute of Cardiology and Internal Diseases, Almaty, Kazakhstan
| | - E Ngige
- Federal Ministry of Health, Abuja, Nigeria
| | - O Njoya
- Research Laboratory on Viral Hepatitis & Health Communication, Faculty of Medicine, University of Yaoundé, Yaoundé, Cameroon
| | - D Nonković
- Department of Epidemiology, Institute of Public Health, County of Dalmatia, Split, Croatia
| | - S Obekpa
- Advocacy for the Prevention of Hepatitis in Nigeria, Jos, Nigeria.,Benue State University Teaching Hospital, Makurdi, Nigeria
| | - S Oguche
- Department of Pediatrics, University of Jos, Jos, Nigeria.,Department of Medicine, University of Jos, Jos, Nigeria.,Jos University Teaching Hospital, Jos, Nigeria
| | - E E Okolo
- Beacon Youth Initiative, Lafia, Nigeria
| | - O Omede
- Federal Ministry of Health, Abuja, Nigeria
| | - C Omuemu
- University of Benin, Benin City, Nigeria
| | - P Ondoa
- Amsterdam Institute for Global Health and Development, Amsterdam, Netherlands.,African Society of Laboratory Medicine, Addis Ababa, Ethiopia
| | - R O Phillips
- Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Y N Prokopenko
- Republican Coordination Center for Hepatology and Gastroenterology, Astana, Kazakhstan
| | - H Razavi
- Center for Disease Analysis (CDA), Lafayette, CO, USA
| | | | - B Redae
- Ethiopian Gastroenterological Association, Addis Ababa, Ethiopia.,St. Paul's Hospital Millennium College, Addis Ababa, Ethiopia
| | - T Reic
- European Liver Patients Association, Sint-Truiden, Belgium
| | - T Rinke de Wit
- PharmAccess Foundation, Department of Global Health, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - C Rios
- Department of Health Promotion and Disease Prevention, Ministry of Health and Social Protection, Bogota, Colombia
| | - S Robbins
- Center for Disease Analysis (CDA), Lafayette, CO, USA
| | - L R Roberts
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, USA
| | - S J Sanad
- BDF Hospital, Royal Medical Services, Riffa, Bahrain
| | - J D Schmelzer
- Center for Disease Analysis (CDA), Lafayette, CO, USA
| | - M Sharma
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | - M Simonova
- Clinic of Gastroenterology, Military Medical Academy, Sofia, Bulgaria
| | - T H Su
- Department of Internal Medicine, National Taiwan University Hospital, Taipei City, Taiwan
| | - K Sultan
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | - S S Tan
- Department of Hepatology, Selayang Hospital, Selangor, Malaysia
| | | | - O T Y Tsang
- Department of Medicine and Geriatrics, Princess Margaret Hospital Authority, Hong Kong, SAR, China
| | - S Tsang
- Department of Medicine, Tseung Kwan O Hospital, Hong Kong, SAR, China
| | - C Tzeuton
- Faculty of Medicine and Pharmaceutical Sciences, University of Douala, Douala, Cameroon
| | - S Ugoeze
- Federal Medical Centre, Jalingo, Nigeria
| | - B Uzochukwu
- Institute of Public Health, University of Nigeria, Nsukka, Nigeria
| | - R Vi
- Republican Coordination Center for Hepatology and Gastroenterology, Astana, Kazakhstan.,International HepatoTransplant Group, Astana, Kazakhstan
| | - H U Wani
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | - V W S Wong
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong, SAR, China.,State Key Laboratory of Digestive Disease, The Chinese University of Hong Kong, Hong Kong, SAR, China
| | - R Yacoub
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | - K I Yesmembetov
- National Scientific Center of Oncology and Transplantology, Astana, Kazakhstan
| | - M Youbi
- National Institute of Health Administration, Rabat, Morocco
| | - M F Yuen
- Department of Medicine, Queen Mary Hospital, The University of Hong Kong, Hong Kong, SAR, China
| | | |
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21
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Chan HLY, Chen CJ, Omede O, Al Qamish J, Al Naamani K, Bane A, Tan SS, Simonova M, Cardenas I, Derbala M, Akin O, Phillips RO, Abdelmageed MK, Abdulla M, Adda D, Al Baqali A, Al Dweik N, Al Ejji K, Al Ghazzawi I, Al Kaabi S, Al Sadadi M, Al Salman J, AlBadri M, Al-Busafi SA, Al-Romaihi HE, Ampofo W, Antonov K, Anyaike C, Arome F, Blach S, Borodo MM, Brandon SM, Bright B, Butt MT, Chen DS, Chen PJ, Chien RN, Chuang WL, Cuellar D, Elbardiny AA, Estes C, Farag E, Fung J, Gamkrelidze I, Garcia V, Genov J, Ghandour Z, Ghuloom M, Gomez B, Gunter J, Habeeb J, Hajelssedig O, Hamoudi W, Himatt SM, Hrstic I, Hu CC, Huang CF, Hui YT, Jahis R, Jelev D, John AK, Kaliaskarova KS, Kamel Y, Kao JH, Khamis J, Khattabi H, Khoudri I, Konysbekova A, Kotzev I, Lai MS, Lao WC, Layden J, Lee MH, Lesi O, Li M, Lo A, Loo CK, Lukšić B, Maaroufi A, Malu AO, Mateva L, Mitova R, Mohamed R, Morović M, Murphy K, Mustapha B, Nersesov A, Ngige E, Njouom R, Njoya O, Nonković D, Obekpa S, Oguche S, Okolo EE, Omuemu C, Ondoa P, Opare-Sem O, Owusu-Ofori S, Prokopenko YN, Razavi H, Razavi-Shearer D, Razavi-Shearer K, Redae B, Reic T, Rinke de Wit T, Rios C, Robbins S, Roberts LR, Sanad SJ, Schmelzer JD, Sharma M, Su TH, Sultan K, Tchernev K, Tsang OTY, Tsang S, Tzeuton C, Ugoeze S, Uzochukwu B, Vi R, Vince A, Wani HU, Wong VWS, Workneh A, Yacoub R, Yesmembetov KI, Youbi M, Yuen MF, Nde H. The present and future disease burden of hepatitis C virus infections with today's treatment paradigm: Volume 4. J Viral Hepat 2017; 24 Suppl 2:25-43. [PMID: 29105283 DOI: 10.1111/jvh.12760] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.4] [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: 06/19/2017] [Accepted: 07/03/2017] [Indexed: 12/13/2022]
Abstract
Factors influencing the morbidity and mortality associated with viremic hepatitis C virus (HCV) infection change over time and place, making it difficult to compare reported estimates. Models were developed for 17 countries (Bahrain, Bulgaria, Cameroon, Colombia, Croatia, Dominican Republic, Ethiopia, Ghana, Hong Kong, Jordan, Kazakhstan, Malaysia, Morocco, Nigeria, Qatar and Taiwan) to quantify and characterize the viremic population as well as forecast the changes in the infected population and the corresponding disease burden from 2015 to 2030. Model inputs were agreed upon through expert consensus, and a standardized methodology was followed to allow for comparison across countries. The viremic prevalence is expected to remain constant or decline in all but four countries (Ethiopia, Ghana, Jordan and Oman); however, HCV-related morbidity and mortality will increase in all countries except Qatar and Taiwan. In Qatar, the high-treatment rate will contribute to a reduction in total cases and HCV-related morbidity by 2030. In the remaining countries, however, the current treatment paradigm will be insufficient to achieve large reductions in HCV-related morbidity and mortality.
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Affiliation(s)
- H L Y Chan
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong, SAR, China.,Institute of Digestive Disease, The Chinese University of Hong Kong, Hong Kong, SAR, China
| | | | - O Omede
- Federal Ministry of Health, Abuja, Nigeria
| | - J Al Qamish
- Gastroenterolgy Clinic, IBN Al-Nafees Hospital, Manama, Bahsrain
| | - K Al Naamani
- Division of Gastroenterology and Hepatology, Department of Medicine, Armed Forces Hospital, Muscat, Oman
| | - A Bane
- Gastroenterology and Hepatology, Addis Ababa University Medical School, Addis Ababa, Ethiopia.,Ethiopian Gastroenterological Association, Addis Ababa, Ethiopia
| | - S S Tan
- Department of Hepatology, Selayang Hospital, Selangor, Malaysia
| | - M Simonova
- Clinic of Gastroenterology, Military Medical Academy, Sofia, Bulgaria
| | - I Cardenas
- Communicable Diseases Division, Ministry of Health and Social Protection, Bogota, Colombia
| | - M Derbala
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | - O Akin
- Federal Ministry of Health, Abuja, Nigeria
| | - R O Phillips
- Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | | | - M Abdulla
- Salmaniya Medical Complex, Manama, Bahrain
| | - D Adda
- Civil Society Network on Hepatitis, Abuja, Nigeria.,Chagro-Care Trust (CCT), Jalingo, Nigeria
| | - A Al Baqali
- Al Kindi Specialised Hospital, Manama, Bahrain
| | - N Al Dweik
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | - K Al Ejji
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | - I Al Ghazzawi
- GI and Hepatology Department, Jordan Royal Medical Services, Amman, Jordan
| | - S Al Kaabi
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | | | | | - M AlBadri
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | - S A Al-Busafi
- Division of Gastroenterology, Department of Medicine, Sultan Qaboos University Hospital, Muscat, Oman
| | | | - W Ampofo
- Noguchi Memorial Institute for Medical Research, University of Ghana, Legon, Ghana
| | - K Antonov
- University Hospital "St. Ivan Rilski", Sofia, Bulgaria
| | - C Anyaike
- Federal Ministry of Health, Abuja, Nigeria
| | - F Arome
- Advocacy for the Prevention of Hepatitis in Nigeria, Jos, Nigeria
| | - S Blach
- Center for Disease Analysis (CDA), Lafayette, CO, USA
| | - M M Borodo
- Aminu Kano Teaching Hospital, Kano, Nigeria.,Bayero University, Kano, Nigeria
| | - S M Brandon
- Center for Disease Analysis (CDA), Lafayette, CO, USA
| | - B Bright
- LiveWell Initiative (LWI), Lagos, Nigeria
| | - M T Butt
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | - D S Chen
- Hepatitis Research Center, National Taiwan University Hospital, Taipei, Taiwan
| | - P J Chen
- National Taiwan University, Taipei, Taiwan
| | - R N Chien
- Liver Research Unit, Keelung Chang Gung Memorial Hospital, Keelung, Taiwan
| | - W L Chuang
- Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung City, Taiwan
| | - D Cuellar
- Department of Epidemiology and Demography, Ministry of Health and Social Protection, Bogota, Colombia
| | | | - C Estes
- Center for Disease Analysis (CDA), Lafayette, CO, USA
| | - E Farag
- Ministry of Public Health Qatar, Doha, Qatar
| | - J Fung
- Department of Medicine, The University of Hong Kong, Hong Kong, SAR, China
| | - I Gamkrelidze
- Center for Disease Analysis (CDA), Lafayette, CO, USA
| | - V Garcia
- Ministry of Public Health, Santo Domingo, Dominican Republic
| | - J Genov
- University Hospital "Queen Joanna", Sofia, Bulgaria
| | - Z Ghandour
- BDF Hospital, Royal Medical Services, Riffa, Bahrain
| | - M Ghuloom
- Salmaniya Medical Complex, Manama, Bahrain
| | - B Gomez
- Pan American Health Organization, Washington, DC, USA
| | - J Gunter
- Center for Disease Analysis (CDA), Lafayette, CO, USA
| | - J Habeeb
- Salmaniya Medical Complex, Manama, Bahrain
| | - O Hajelssedig
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | - W Hamoudi
- Department of Gastroenterology & Hepatology, Al Bashir Hospital, Amman, Jordan.,Jordan Ministry of Health, Amman, Jordan
| | - S M Himatt
- Ministry of Public Health Qatar, Doha, Qatar
| | - I Hrstic
- General Hospital Pula, Pula, Croatia
| | - C C Hu
- Liver Research Unit, Keelung Chang Gung Memorial Hospital, Keelung, Taiwan
| | - C F Huang
- Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung City, Taiwan
| | - Y T Hui
- Department of Medicine, Queen Elizabeth Hospital, Hong Kong, SAR, China
| | - R Jahis
- Disease Control Division, Ministry of Health, Putrajaya, Malaysia
| | - D Jelev
- University Hospital "St. Ivan Rilski", Sofia, Bulgaria
| | - A K John
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | - K S Kaliaskarova
- Ministry of Healthcare and Social Development of the Republic of Kazakhstan, Astana, Kazakhstan.,Republican Coordination Center for Hepatology and Gastroenterology, Astana, Kazakhstan
| | - Y Kamel
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar.,Department of Medicine, Miniya University, Minya, Egypt
| | - J H Kao
- Department of Internal Medicine, National Taiwan University Hospital, Taipei City, Taiwan
| | - J Khamis
- Salmaniya Medical Complex, Manama, Bahrain
| | - H Khattabi
- Eastern Mediterranean Regional Office, World Health Organization, Cairo, Egypt
| | - I Khoudri
- Department of Epidemiology and Disease Control, Ministry of Health, Rabat, Morocco
| | - A Konysbekova
- Republican Diagnostic Center, Astana, Kazakhstan.,University Medical Center, Astana, Kazakhstan
| | - I Kotzev
- University Hospital "St. Marina", Varna, Bulgaria
| | - M S Lai
- Department of Medicine, North District Hospital, Hong Kong, SAR, China
| | - W C Lao
- Department of Medicine, Pamela Youde Nethersole Eastern Hospital, Hong Kong, SAR, China
| | - J Layden
- Department of Public Health Sciences, Loyola University Chicago, Chicago, IL, USA
| | - M H Lee
- Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan
| | - O Lesi
- University of Lagos, Lagos, Nigeria.,Lagos University Teaching Hospital, Lagos, Nigeria
| | - M Li
- Division of Gastroenterology and Hepatology, Department of Medicine and Geriatrics, Tuen Mun Hospital, Hong Kong, SAR, China
| | - A Lo
- Institute of Digestive Disease, The Chinese University of Hong Kong, Hong Kong, SAR, China
| | - C K Loo
- Department of Medicine and Geriatrics, Kwong Wah Hospital, Hong Kong, SAR, China
| | - B Lukšić
- Clinical Department of Infectious Diseases, Split University Hospital and Split University Medical School, Split, Croatia
| | - A Maaroufi
- Department of Epidemiology and Disease Control, Ministry of Health, Rabat, Morocco
| | - A O Malu
- Benue State University Teaching Hospital, Makurdi, Nigeria
| | - L Mateva
- University Hospital "St. Ivan Rilski", Sofia, Bulgaria
| | - R Mitova
- University Hospital "Queen Joanna", Sofia, Bulgaria
| | - R Mohamed
- University of Malaya Medical Centre, Kuala Lumpur, Malaysia
| | - M Morović
- Department of Infectious Diseases, Zadar General Hospital, Zadar, Croatia
| | - K Murphy
- Center for Disease Analysis (CDA), Lafayette, CO, USA
| | | | - A Nersesov
- National Research Institute of Cardiology and Internal Diseases, Almaty, Kazakhstan
| | - E Ngige
- Federal Ministry of Health, Abuja, Nigeria
| | - R Njouom
- Virology Department, Centre Pasteur of Cameroon, Yaounde, Cameroon
| | - O Njoya
- Research Laboratory on Viral Hepatitis & Health Communication, Faculty of Medicine, University of Yaoundé, Yaoundé, Cameroon
| | - D Nonković
- Department of Epidemiology, Institute of Public Health, County of Dalmatia, Split, Croatia
| | - S Obekpa
- Advocacy for the Prevention of Hepatitis in Nigeria, Jos, Nigeria.,Benue State University Teaching Hospital, Makurdi, Nigeria
| | - S Oguche
- Department of Pediatrics, University of Jos, Jos, Nigeria.,Department of Medicine, University of Jos, Jos, Nigeria.,Jos University Teaching Hospital, Jos, Nigeria
| | - E E Okolo
- Beacon Youth Initiative, Lafia, Nigeria
| | - C Omuemu
- University of Benin, Benin City, Nigeria
| | - P Ondoa
- Amsterdam Institute for Global Health and Development, Amsterdam, The Netherlands.,African Society of Laboratory Medicine, Addis Ababa, Ethiopia
| | - O Opare-Sem
- Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | | | - Y N Prokopenko
- Republican Coordination Center for Hepatology and Gastroenterology, Astana, Kazakhstan
| | - H Razavi
- Center for Disease Analysis (CDA), Lafayette, CO, USA
| | | | | | - B Redae
- Ethiopian Gastroenterological Association, Addis Ababa, Ethiopia.,St. Paul's Hospital Millennium College, Addis Ababa, Ethiopia
| | - T Reic
- European Liver Patients Association, Sint-Truiden, Belgium
| | - T Rinke de Wit
- PharmAccess Foundation, Department of Global Health, Academic Medical Center, University of Amsterdam, Amsterdam, The Netherlands
| | - C Rios
- Department of Health Promotion and Disease Prevention, Ministry of Health and Social Protection, Bogota, Colombia
| | - S Robbins
- Center for Disease Analysis (CDA), Lafayette, CO, USA
| | - L R Roberts
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, USA
| | - S J Sanad
- BDF Hospital, Royal Medical Services, Riffa, Bahrain
| | - J D Schmelzer
- Center for Disease Analysis (CDA), Lafayette, CO, USA
| | - M Sharma
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | - T H Su
- Department of Internal Medicine, National Taiwan University Hospital, Taipei City, Taiwan
| | - K Sultan
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | | | - O T Y Tsang
- Department of Medicine and Geriatrics, Princess Margaret Hospital Authority, Hong Kong, SAR, China
| | - S Tsang
- Department of Medicine, Tseung Kwan O Hospital, Hong Kong, SAR, China
| | - C Tzeuton
- Faculty of Medicine and Pharmaceutical Sciences, University of Douala, Douala, Cameroon
| | - S Ugoeze
- Federal Medical Centre, Jalingo, Nigeria
| | - B Uzochukwu
- Institute of Public Health, University of Nigeria, Nsukka, Nigeria
| | - R Vi
- Republican Coordination Center for Hepatology and Gastroenterology, Astana, Kazakhstan.,International HepatoTransplant Group, Astana, Kazakhstan
| | - A Vince
- Medical School University of Zagreb, University Hospital of Infectious Diseases Zagreb, Zagreb, Croatia
| | - H U Wani
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | - V W S Wong
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong, SAR, China.,State Key Laboratory of Digestive Disease, The Chinese University of Hong Kong, Hong Kong, SAR, China
| | - A Workneh
- Non-Communicable Diseases Programme, World Health Organization, Addis Ababa, Ethiopia.,Federal Ministry of Health, Addis Ababa, Ethiopia
| | - R Yacoub
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | - K I Yesmembetov
- National Scientific Center of Oncology and Transplantology, Astana, Kazakhstan
| | - M Youbi
- Department of Epidemiology and Disease Control, Ministry of Health, Rabat, Morocco
| | - M F Yuen
- Department of Medicine, Queen Mary Hospital, The University of Hong Kong, Hong Kong, SAR, China
| | - H Nde
- Center for Disease Analysis (CDA), Lafayette, CO, USA
| |
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22
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Chen DS, Hamoudi W, Mustapha B, Layden J, Nersesov A, Reic T, Garcia V, Rios C, Mateva L, Njoya O, Al-Busafi SA, Abdelmageed MK, Abdulla M, Adda D, Akin O, Al Baqali A, Al Dweik N, Al Ejji K, Al Ghazzawi I, Al Kaabi S, Al Naamani K, Al Qamish J, Al Sadadi M, Al Salman J, AlBadri M, Al-Romaihi HE, Ampofo W, Antonov K, Anyaike C, Arome F, Bane A, Blach S, Borodo MM, Brandon SM, Bright B, Butt MT, Cardenas I, Chan HLY, Chen CJ, Chen PJ, Chien RN, Chuang WL, Cuellar D, Derbala M, Elbardiny AA, Estes C, Farag E, Fung J, Gamkrelidze I, Genov J, Ghandour Z, Ghuloom M, Gomez B, Gunter J, Habeeb J, Hajelssedig O, Himatt SM, Hrstic I, Hu CC, Huang CF, Hui YT, Jahis R, Jelev D, John AK, Kaliaskarova KS, Kamel Y, Kao JH, Khamis J, Khattabi H, Khoudri I, Konysbekova A, Kotzev I, Lai MS, Lao WC, Lee MH, Lesi O, Li M, Lo A, Loo CK, Lukšić B, Maaroufi A, Malu AO, Mitova R, Mohamed R, Morović M, Murphy K, Nde H, Ngige E, Njouom R, Nonković D, Obekpa S, Oguche S, Okolo EE, Omede O, Omuemu C, Ondoa P, Opare-Sem O, Owusu-Ofori S, Phillips RO, Prokopenko YN, Razavi H, Razavi-Shearer D, Razavi-Shearer K, Redae B, Rinke de Wit T, Robbins S, Roberts LR, Sanad SJ, Sharma M, Simonova M, Su TH, Sultan K, Tan SS, Tchernev K, Tsang OTY, Tsang S, Tzeuton C, Ugoeze S, Uzochukwu B, Vi R, Vince A, Wani HU, Wong VWS, Workneh A, Yacoub R, Yesmembetov KI, Youbi M, Yuen MF, Schmelzer JD. Strategies to manage hepatitis C virus infection disease burden-Volume 4. J Viral Hepat 2017; 24 Suppl 2:44-63. [PMID: 29105286 DOI: 10.1111/jvh.12759] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/19/2017] [Accepted: 07/03/2017] [Indexed: 01/03/2023]
Abstract
The hepatitis C virus (HCV) epidemic was forecasted through 2030 for 17 countries in Africa, Asia, Europe, Latin America and the Middle East, and interventions for achieving the Global Health Sector Strategy on viral hepatitis targets-"WHO Targets" (65% reduction in HCV-related deaths, 90% reduction in new infections and 90% of infections diagnosed by 2030) were considered. Scaling up treatment and diagnosis rates over time would be required to achieve these targets in all but one country, even with the introduction of high SVR therapies. The scenarios developed to achieve the WHO Targets in all countries studied assumed the implementation of national policies to prevent new infections and to diagnose current infections through screening.
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Affiliation(s)
- D S Chen
- Hepatitis Research Center, National Taiwan University Hospital, Taipei, Taiwan
| | - W Hamoudi
- Department of Gastroenterology & Hepatology, Al Bashir Hospital, Amman, Jordan.,Jordan Ministry of Health, Amman, Jordan
| | | | - J Layden
- Department of Public Health Sciences, Loyola University Chicago, Chicago, IL, USA
| | - A Nersesov
- National Research Institute of Cardiology and Internal Diseases, Almaty, Kazakhstan
| | - T Reic
- European Liver Patients Association, Sint-Truiden, Belgium
| | - V Garcia
- Ministry of Public Health, Santo Domingo, Dominican Republic
| | - C Rios
- Department of Health Promotion and Disease Prevention, Ministry of Health and Social Protection, Bogota, Colombia
| | - L Mateva
- University Hospital "St. Ivan Rilski", Sofia, Bulgaria
| | - O Njoya
- Research Laboratory on Viral Hepatitis & Health Communication, Faculty of Medicine, University of Yaoundé, Yaoundé, Cameroon
| | - S A Al-Busafi
- Division of Gastroenterology, Department of Medicine, Sultan Qaboos University Hospital, Muscat, Oman
| | | | - M Abdulla
- Salmaniya Medical Complex, Manama, Bahrain
| | - D Adda
- Civil Society Network on Hepatitis, Abuja, Nigeria.,Chagro-Care Trust (CCT), Jalingo, Nigeria
| | - O Akin
- Federal Ministry of Health, Abuja, Nigeria
| | - A Al Baqali
- Al Kindi Specialised Hospital, Manama, Bahrain
| | - N Al Dweik
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | - K Al Ejji
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | - I Al Ghazzawi
- GI and Hepatology Department, Jordan Royal Medical Services, Amman, Jordan
| | - S Al Kaabi
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | - K Al Naamani
- Division of Gastroenterology and Hepatology, Department of Medicine, Armed Forces Hospital, Muscat, Oman
| | - J Al Qamish
- Gastroenterolgy Clinic, IBN Al-Nafees Hospital, Manama, Bahrain
| | | | | | - M AlBadri
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | | | - W Ampofo
- Noguchi Memorial Institute for Medical Research, University of Ghana, Legon, Ghana
| | - K Antonov
- University Hospital "St. Ivan Rilski", Sofia, Bulgaria
| | - C Anyaike
- Federal Ministry of Health, Abuja, Nigeria
| | - F Arome
- Advocacy for the Prevention of Hepatitis in Nigeria, Jos, Nigeria
| | - A Bane
- Gastroenterology and Hepatology, Addis Ababa University Medical School, Addis Ababa, Ethiopia.,Ethiopian Gastroenterological Association, Addis Ababa, Ethiopia
| | - S Blach
- Center for Disease Analysis (CDA), Lafayette, CO, USA
| | - M M Borodo
- Aminu Kano Teaching Hospital, Kano, Nigeria.,Bayero University, Kano, Nigeria
| | - S M Brandon
- Center for Disease Analysis (CDA), Lafayette, CO, USA
| | - B Bright
- LiveWell Initiative (LWI), Lagos, Nigeria
| | - M T Butt
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | - I Cardenas
- Communicable Diseases Division, Ministry of Health and Social Protection, Bogota, Colombia
| | - H L Y Chan
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong, China.,Institute of Digestive Disease, The Chinese University of Hong Kong, Hong Kong, China
| | | | - P J Chen
- National Taiwan University, Taipei, Taiwan
| | - R N Chien
- Liver Research Unit, Keelung Chang Gung Memorial Hospital, Keelung, Taiwan
| | - W L Chuang
- Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung City, Taiwan
| | - D Cuellar
- Department of Epidemiology and Demography, Ministry of Health and Social Protection, Bogota, Colombia
| | - M Derbala
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | | | - C Estes
- Center for Disease Analysis (CDA), Lafayette, CO, USA
| | - E Farag
- Ministry of Public Health Qatar, Doha, Qatar
| | - J Fung
- Department of Medicine, The University of Hong Kong, Hong Kong, China
| | - I Gamkrelidze
- Center for Disease Analysis (CDA), Lafayette, CO, USA
| | - J Genov
- University Hospital "Queen Joanna", Sofia, Bulgaria
| | - Z Ghandour
- BDF Hospital, Royal Medical Services, Riffa, Bahrain
| | - M Ghuloom
- Salmaniya Medical Complex, Manama, Bahrain
| | - B Gomez
- Pan American Health Organization, Washington, DC, USA
| | - J Gunter
- Center for Disease Analysis (CDA), Lafayette, CO, USA
| | - J Habeeb
- Salmaniya Medical Complex, Manama, Bahrain
| | - O Hajelssedig
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | - S M Himatt
- Ministry of Public Health Qatar, Doha, Qatar
| | - I Hrstic
- General Hospital Pula, Pula, Croatia
| | - C C Hu
- Liver Research Unit, Keelung Chang Gung Memorial Hospital, Keelung, Taiwan
| | - C F Huang
- Department of Internal Medicine, Kaohsiung Medical University Hospital, Kaohsiung City, Taiwan
| | - Y T Hui
- Department of Medicine, Queen Elizabeth Hospital, Hong Kong, China
| | - R Jahis
- Disease Control Division, Ministry of Health, Putrajaya, Malaysia
| | - D Jelev
- University Hospital "St. Ivan Rilski", Sofia, Bulgaria
| | - A K John
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | - K S Kaliaskarova
- Ministry of Healthcare and Social Development of the Republic of Kazakhstan, Astana, Kazakhstan.,Republican Coordination Center for Hepatology and Gastroenterology, Astana, Kazakhstan
| | - Y Kamel
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar.,Department of Medicine, Miniya University, Minya, Egypt
| | - J H Kao
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - J Khamis
- Salmaniya Medical Complex, Manama, Bahrain
| | - H Khattabi
- Eastern Mediterranean Regional Office, World Health Organization, Cairo, Egypt
| | - I Khoudri
- Department of Epidemiology and Disease Control, Ministry of Health, Rabat, Morocco
| | - A Konysbekova
- Republican Diagnostic Center, Astana, Kazakhstan.,University Medical Center, Astana, Kazakhstan
| | - I Kotzev
- University Hospital "St. Marina", Varna, Bulgaria
| | - M S Lai
- Department of Medicine, North District Hospital, Hong Kong, China
| | - W C Lao
- Department of Medicine, Pamela Youde Nethersole Eastern Hospital, Hong Kong, China
| | - M H Lee
- Institute of Clinical Medicine, National Yang-Ming University, Taipei, Taiwan
| | - O Lesi
- University of Lagos, Lagos, Nigeria.,Lagos University Teaching Hospital, Lagos, Nigeria
| | - M Li
- Division of Gastroenterology and Hepatology, Department of Medicine and Geriatrics, Tuen Mun Hospital, Hong Kong, China
| | - A Lo
- Institute of Digestive Disease, The Chinese University of Hong Kong, Hong Kong, China
| | - C K Loo
- Department of Medicine and Geriatrics, Kwong Wah Hospital, Hong Kong, China
| | - B Lukšić
- Clinical Department of Infectious Diseases, Split University Hospital and Split University Medical School, Split, Croatia
| | - A Maaroufi
- Department of Epidemiology and Disease Control, Ministry of Health, Rabat, Morocco
| | - A O Malu
- Benue State University Teaching Hospital, Makurdi, Nigeria
| | - R Mitova
- University Hospital "Queen Joanna", Sofia, Bulgaria
| | - R Mohamed
- University of Malaya Medical Centre, Kuala Lumpur, Malaysia
| | - M Morović
- Department of Infectious Diseases, Zadar General Hospital, Zadar, Croatia
| | - K Murphy
- Center for Disease Analysis (CDA), Lafayette, CO, USA
| | - H Nde
- Center for Disease Analysis (CDA), Lafayette, CO, USA
| | - E Ngige
- Federal Ministry of Health, Abuja, Nigeria
| | - R Njouom
- Virology Department, Centre Pasteur of Cameroon, Yaounde, Cameroon
| | - D Nonković
- Department of Epidemiology, Institute of Public Health, Split, Croatia
| | - S Obekpa
- Advocacy for the Prevention of Hepatitis in Nigeria, Jos, Nigeria.,Benue State University Teaching Hospital, Makurdi, Nigeria
| | - S Oguche
- Department of Pediatrics, University of Jos, Jos, Nigeria.,Department of Medicine, University of Jos, Jos, Nigeria.,Jos University Teaching Hospital, Jos, Nigeria
| | - E E Okolo
- Beacon Youth Initiative, Lafia, Nigeria
| | - O Omede
- Federal Ministry of Health, Abuja, Nigeria
| | - C Omuemu
- University of Benin, Benin City, Nigeria
| | - P Ondoa
- Amsterdam Institute for Global Health and Development, Amsterdam, The Netherlands.,African Society of Laboratory Medicine, Addis Ababa, Ethiopia
| | - O Opare-Sem
- Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | | | - R O Phillips
- Kwame Nkrumah University of Science and Technology, Kumasi, Ghana
| | - Y N Prokopenko
- Republican Coordination Center for Hepatology and Gastroenterology, Astana, Kazakhstan
| | - H Razavi
- Center for Disease Analysis (CDA), Lafayette, CO, USA
| | | | | | - B Redae
- Ethiopian Gastroenterological Association, Addis Ababa, Ethiopia.,St. Paul's Hospital Millennium College, Addis Ababa, Ethiopia
| | - T Rinke de Wit
- PharmAccess Foundation, Department of Global Health, University of Amsterdam, Amsterdam, The Netherlands
| | - S Robbins
- Center for Disease Analysis (CDA), Lafayette, CO, USA
| | - L R Roberts
- Division of Gastroenterology and Hepatology, Mayo Clinic, Rochester, MN, USA
| | - S J Sanad
- BDF Hospital, Royal Medical Services, Riffa, Bahrain
| | - M Sharma
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | - M Simonova
- Clinic of Gastroenterology, Military Medical Academy, Sofia, Bulgaria
| | - T H Su
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - K Sultan
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | - S S Tan
- Department of Hepatology, Selayang Hospital, Selangor, Malaysia
| | | | - O T Y Tsang
- Department of Medicine and Geriatrics, Princess Margaret Hospital Authority, Hong Kong, SAR China
| | - S Tsang
- Department of Medicine, Tseung Kwan O Hospital, Hong Kong, China
| | - C Tzeuton
- Faculty of Medicine and Pharmaceutical Sciences, University of Douala, Douala, Cameroon
| | - S Ugoeze
- Federal Medical Centre, Jalingo, Nigeria
| | - B Uzochukwu
- Institute of Public Health, University of Nigeria, Nsukka, Nigeria
| | - R Vi
- Republican Coordination Center for Hepatology and Gastroenterology, Astana, Kazakhstan.,International HepatoTransplant Group, Astana, Kazakhstan
| | - A Vince
- Medical School University of Zagreb, University Hospital of Infectious Diseases Zagreb, Zagreb, Croatia
| | - H U Wani
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | - V W S Wong
- Department of Medicine and Therapeutics, The Chinese University of Hong Kong, Hong Kong, China.,State Key Laboratory of Digestive Disease, The Chinese University of Hong Kong, Hong Kong, China
| | - A Workneh
- Non-Communicable Diseases Programme, World Health Organization, Addis Ababa, Ethiopia.,Federal Ministry of Health, Addis Ababa, Ethiopia
| | - R Yacoub
- Division of Gastroenterology, Department of Medicine, Hamad Medical Corporation, Doha, Qatar
| | - K I Yesmembetov
- National Scientific Center of Oncology and Transplantation, Astana, Kazakhstan
| | - M Youbi
- Department of Epidemiology and Disease Control, Ministry of Health, Rabat, Morocco
| | - M F Yuen
- Department of Medicine, Queen Mary Hospital, The University of Hong Kong, Hong Kong, China
| | - J D Schmelzer
- Center for Disease Analysis (CDA), Lafayette, CO, USA
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23
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Chen PJ, Tseng JK, Lin YL, Wu YHS, Hsiao YT, Chen JW, Chen YC. Protective Effects of Functional Chicken Liver Hydrolysates against Liver Fibrogenesis: Antioxidation, Anti-inflammation, and Antifibrosis. J Agric Food Chem 2017; 65:4961-4969. [PMID: 28561587 DOI: 10.1021/acs.jafc.7b01403] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Via an assay using an Amino Acid Analyzer, pepsin-digested chicken liver hydrolysates (CLHs) contain taurine (365.57 ± 39.04 mg/100 g), carnosine (14.03 ± 1.98 mg/100 g), and anserine (151.58 ± 27.82 mg/100 g). This study aimed to evaluate whether CLHs could alleviate thioacetamide (TAA)-induced fibrosis. A dose of 100 mg TAA/kg BW significantly increased serum liver damage indices and liver cytokine contents. Cell infiltration and monocytes/macrophages in livers of TAA-treated rats were illustrated by the H&E staining and immunohistochemical analysis of cluster of differentiation 68 (CD68, ED1), respectively. A significantly increased hepatic collagen accumulation was also observed and quantified under TAA treatment. A significant up-regulation of transforming growth factor-beta (TGF-β) and SMAD family member 4 (SMAD4) caused by TAA treatment further enhanced alpha smooth muscle actin (αSMA) gene and protein expressions. The liver antioxidant effects under TAA treatment were significantly amended by 200 and 600 mg CLHs/kg BW. Hence, the ameliorative effects of CLHs on liver fibrogenesis could be attributed by antioxidation and anti-inflmmation.
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Affiliation(s)
- Po-Ju Chen
- Department of Animal Science and Technology, National Taiwan University , Taipei 106, Taiwan
| | - Jung-Kai Tseng
- Department of Optometry, Asia University , Taichung 413, Taiwan
- Department of Medical Research, China Medical University Hospital, China Medical University , Taichung 404, Taiwan
| | - Yi-Ling Lin
- Department of Animal Science and Technology, National Taiwan University , Taipei 106, Taiwan
| | - Yi-Hsieng Samuel Wu
- Department of Animal Science and Technology, National Taiwan University , Taipei 106, Taiwan
| | - Yi-Tse Hsiao
- School of Veterinary Medicine, National Taiwan University , Taipei 106, Taiwan
| | - Jr-Wei Chen
- Department of Animal Science and Technology, National Taiwan University , Taipei 106, Taiwan
- Poultry Industry Section, Department of Animal Industry, Council of Agriculture, Executive Yuan , Taipei 100, Taiwan
| | - Yi-Chen Chen
- Department of Animal Science and Technology, National Taiwan University , Taipei 106, Taiwan
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24
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Chen XH, Chen PJ, Long Y, Huang QP. [Determination and significance of serum MPO and amylin in adult patients with OSAHS after short-range noninvasive positive pressure ventilation]. Lin Chung Er Bi Yan Hou Tou Jing Wai Ke Za Zhi 2017; 31:873-876. [PMID: 29775005 DOI: 10.13201/j.issn.1001-1781.2017.11.013] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Subscribe] [Scholar Register] [Received: 03/17/2017] [Indexed: 11/12/2022]
Abstract
Objective:The aim of this study to investigate the determination and significance of serum MPO and amylin in adult patients with OSAHS after short-range noninvasive positive pressure ventilation. Method:Eighty-seven OSAHS patients were divided into severe group (30 cases), moderate group (30 cases) and mild group (27 cases) according to the AHI range. Twenty-seven outpatient health persons were selected as the control group. Serum amylin and myeloperoxidase were measured by ELISA; Amyloid and myeloperoxidase were reassessed in 30 patients with severe OSAHS after 6 months of combined therapy, and the relationship between amylin, myeloperoxidase and PSG was analyzed. Result:①With the severity of OSAHS patients increased, the serum amylin and myeloperoxidase levels gradually increased (F=22.486, 19.755;P<0.01); There was no significant difference in MPO and amylin concentration between the mild group and the control group (P>0.05), and the other groups were significantly different from each other (P<0.01). ②There was no correlation among serum amylin and myeloperoxidase level and BMI and age in OSAHS patients (P>0.05); and a negative correlation with SaO₂, and AHI was positively correlated (P<0.01). ③After 3 months of CPAP treatment, LSaO₂ increased which the AHI and peripheral blood MPO, amylin levels lower than before in 30 patients (P<0.05); The amylin and myeloperoxidase concentrations of blood after 6 months of treatment were significantly lower than those of 3 months after treatment (P<0.05), which still increased compared with the control group. Conclusion:The determination of serum amylin and MPO in patients with OSAHS has a certain reference value in predicting the condition and curative effect of diabetes mellitus and insulin resistance. CPAP treatment can significantly reduce the degree of hypoxiapatients and cardiovascular damage in OSAHS patients, which was significantly correlated with the treatment time.
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Affiliation(s)
- X H Chen
- Department of Otorhinolaryngology Head and Neck Surgery, the Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen, 518033, China
| | - P J Chen
- Clinical Laboratory, Shenzhen Seventh People's Hospital
| | - Y Long
- Department of Otorhinolaryngology Head and Neck Surgery, the Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen, 518033, China
| | - Q P Huang
- Department of Otorhinolaryngology Head and Neck Surgery, the Eighth Affiliated Hospital, Sun Yat-sen University, Shenzhen, 518033, China
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25
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Wang YJ, Chen PJ, Liang X, Lin YH. Augmented reality with image registration, vision correction and sunlight readability via liquid crystal devices. Sci Rep 2017; 7:433. [PMID: 28348392 PMCID: PMC5428510 DOI: 10.1038/s41598-017-00492-2] [Citation(s) in RCA: 30] [Impact Index Per Article: 4.3] [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: 08/26/2016] [Accepted: 03/01/2017] [Indexed: 11/21/2022] Open
Abstract
Augmented reality (AR), which use computer-aided projected information to augment our sense, has important impact on human life, especially for the elder people. However, there are three major challenges regarding the optical system in the AR system, which are registration, vision correction, and readability under strong ambient light. Here, we solve three challenges simultaneously for the first time using two liquid crystal (LC) lenses and polarizer-free attenuator integrated in optical-see-through AR system. One of the LC lens is used to electrically adjust the position of the projected virtual image which is so-called registration. The other LC lens with larger aperture and polarization independent characteristic is in charge of vision correction, such as myopia and presbyopia. The linearity of lens powers of two LC lenses is also discussed. The readability of virtual images under strong ambient light is solved by electrically switchable transmittance of the LC attenuator originating from light scattering and light absorption. The concept demonstrated in this paper could be further extended to other electro-optical devices as long as the devices exhibit the capability of phase modulations and amplitude modulations.
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Affiliation(s)
- Yu-Jen Wang
- Department of Photonics, National Chiao Tung University, Hsinchu, Taiwan
| | - Po-Ju Chen
- Department of Photonics, National Chiao Tung University, Hsinchu, Taiwan
| | - Xiao Liang
- Department of Chemistry, Tsinghua University, Beijing, China
| | - Yi-Hsin Lin
- Department of Photonics, National Chiao Tung University, Hsinchu, Taiwan.
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26
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Chen PJ, Zhu M, Tibus S, Dyer T, Piccirillo J, Ocker B, Shull RD. Annealing Stability Study of Co 20Fe 60B 20\MgO\ Co 20Fe 60B 20 Perpendicular Magnetic Tunnel Junctions. J Phys D Appl Phys 2017; 50:025006. [PMID: 28210007 PMCID: PMC5304246 DOI: 10.1088/1361-6463/50/2/025006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/06/2023]
Abstract
A full Co20Fe60B20\MgO\ Co20Fe60B20 perpendicular magnetic tunnel junction (pMTJ) with (Co\Pt) multilayers as pinning layers and different functional multilayers stacks were made and annealed at different temperatures. The tunneling magnetoresistance ratio (TMR) and MgO barrier resistance-area product (RA) were measured and analyzed as a function of annealing temperature. The TMR of pMTJs dramatically declines with increasing annealing temperatures from 320 °C to 400 °C while the RA increases with temperature from 375 °C to 450 °C. The pMTJs and partial stacks were also measured in a vibrating sample magnetometer (VSM). We found that the (Co\Pt) multilayers are very stable and maintain a magnetization direction perpendicular to the film plane up to 450 °C. However, the magnetization direction of the CoFeB above and below the MgO barrier rotates from perpendicular to in-plane with increasing annealing temperature. Furthermore, the CoFeB layer influences the adjacent (Co\Pt) layers to rotate at the same time. The pMTJs' elemental depth profiles in the as deposited and annealed states were determined by Secondary Ion Mass Spectrometry (SIMS). We found that Boron and Tantalum migrate towards the top of the stack. The other elements (Platinum, Cobalt, Ruthenium, and Magnesium) are very stable and do not interdiffuse during annealing up to 450°C.
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Affiliation(s)
- P J Chen
- National Institute of Standards and Technology, Gaithersburg, MD 20899-8552; Theiss Research, 7411 Eads Ave.La Jolla, CA 92037
| | - M Zhu
- Colleges of Nanoscale Science & Engineering, SUNY Polytechnic Institute, Albany, NY 12203
| | - S Tibus
- Singulus Technologies AG, 63796 Kahl am Main, Germany
| | - T Dyer
- SEMATECH Inc., 257 Fuller Rd., Albany, NY 12203
| | - J Piccirillo
- Colleges of Nanoscale Science & Engineering, SUNY Polytechnic Institute, Albany, NY 12203
| | - B Ocker
- Singulus Technologies AG, 63796 Kahl am Main, Germany
| | - R D Shull
- National Institute of Standards and Technology, Gaithersburg, MD 20899-8552
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27
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Abstract
Perpendicular Magnetic Tunneling Junctions (pMTJs) with Ta\CoFeB\MgO have been extensively studied in recent years. However, the effects of the underlayer on the formation of the CoFeB perpendicular magnetic anisotropy (PMA) are still not well understood. Here we report the results of our systematic use of a wide range of elements (Ti, V, Cr, Zr, Nb, Mo, Ru, Rh, Pd, Ag, Hf, Ta, W, Re, Os, Ir, Pt and Au) encompassed by columns IVA, VA, VIA, VIIA and VIIIA of the periodic table as the underlayer in a underlayer\Co20Fe60B20\MgO stack. Our goals were to survey more elements which could conceivably create a PMA in CoFeB and thereby to explore the mechanisms enabling these underlayers to enhance or create the PMA. We found underlayer elements having both an outer shell of 4d electrons (Zr, Nb Mo, and Pd) and 5d electrons (Hf, Ta, W, Re, Ir, and Pt) resulted in the development of a PMA in the MgO-capped Co20Fe60B20. Hybridization between the 3d electrons of the Fe or Co (in the Co20Fe60B20) at the interface with the 4d or 5d electrons of the underlayer is thought to be the cause of the PMA development.
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Affiliation(s)
- P J Chen
- National Institute of Standards of Technology, Gaithersburg, MD, 20899, USA
| | - Y L Iunin
- National Institute of Standards of Technology, Gaithersburg, MD, 20899, USA; Institute of Solid State Physics, RAS, Chernogolovka, Moscow distr., 142432 Russia
| | - S F Cheng
- Naval Research Laboratory, Washington, DC 20375, USA
| | - R D Shull
- National Institute of Standards of Technology, Gaithersburg, MD, 20899, USA
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28
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Sarin SK, Kumar M, Lau GK, Abbas Z, Chan HLY, Chen CJ, Chen DS, Chen HL, Chen PJ, Chien RN, Dokmeci AK, Gane E, Hou JL, Jafri W, Jia J, Kim JH, Lai CL, Lee HC, Lim SG, Liu CJ, Locarnini S, Al Mahtab M, Mohamed R, Omata M, Park J, Piratvisuth T, Sharma BC, Sollano J, Wang FS, Wei L, Yuen MF, Zheng SS, Kao JH. Asian-Pacific clinical practice guidelines on the management of hepatitis B: a 2015 update. Hepatol Int 2016; 10:1-98. [PMID: 26563120 PMCID: PMC4722087 DOI: 10.1007/s12072-015-9675-4] [Citation(s) in RCA: 1661] [Impact Index Per Article: 207.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/20/2015] [Accepted: 09/14/2015] [Indexed: 02/06/2023]
Abstract
Worldwide, some 240 million people have chronic hepatitis B virus (HBV), with the highest rates of infection in Africa and Asia. Our understanding of the natural history of HBV infection and the potential for therapy of the resultant disease is continuously improving. New data have become available since the previous APASL guidelines for management of HBV infection were published in 2012. The objective of this manuscript is to update the recommendations for the optimal management of chronic HBV infection. The 2015 guidelines were developed by a panel of Asian experts chosen by the APASL. The clinical practice guidelines are based on evidence from existing publications or, if evidence was unavailable, on the experts' personal experience and opinion after deliberations. Manuscripts and abstracts of important meetings published through January 2015 have been evaluated. This guideline covers the full spectrum of care of patients infected with hepatitis B, including new terminology, natural history, screening, vaccination, counseling, diagnosis, assessment of the stage of liver disease, the indications, timing, choice and duration of single or combination of antiviral drugs, screening for HCC, management in special situations like childhood, pregnancy, coinfections, renal impairment and pre- and post-liver transplant, and policy guidelines. However, areas of uncertainty still exist, and clinicians, patients, and public health authorities must therefore continue to make choices on the basis of the evolving evidence. The final clinical practice guidelines and recommendations are presented here, along with the relevant background information.
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Affiliation(s)
- S K Sarin
- Department of Hepatology, Institute of Liver and Biliary Sciences, New Delhi, India.
| | - M Kumar
- Department of Hepatology, Institute of Liver and Biliary Sciences, New Delhi, India
| | - G K Lau
- Division of Gastroenterology and Hepatology, Humanity and Health Medical Centre, Hong Kong SAR, China
- The Institute of Translational Hepatology, Beijing, China
| | - Z Abbas
- Department of Hepatogastroenterlogy, Sindh Institute of Urology and Transplantation, Karachi, Pakistan
| | - H L Y Chan
- Institute of Digestive Disease, The Chinese University of Hong Kong, Hong Kong, China
| | - C J Chen
- Genomics Research Center, Academia Sinica, National Taiwan University, Taipei, Taiwan
| | - D S Chen
- Department of Internal Medicine, National Taiwan University College of Medicine, Taipei, Taiwan
| | - H L Chen
- Graduate Institute of Clinical Medicine, National Taiwan University College of Medicine, Taipei, Taiwan
| | - P J Chen
- Department of Internal Medicine, National Taiwan University Hospital, Taipei, Taiwan
| | - R N Chien
- Liver Research Unit, Chang Gung Memorial Hospital and University, Chilung, Taiwan
| | - A K Dokmeci
- Department of Gastroenterology, Ankara University School of Medicine, Ankara, Turkey
| | - Ed Gane
- New Zealand Liver Transplant Unit, Auckland City Hospital, Auckland, New Zealand
| | - J L Hou
- Department of Infectious Diseases and Hepatology Unit, Nanfang Hospital, Guangzhou, China
| | - W Jafri
- Department of Medicine, Aga Khan University, Karachi, Pakistan
| | - J Jia
- Beijing Friendship Hospital, Capital Medical University, Beijing, China
| | | | - C L Lai
- Department of Medicine, University of Hong Kong, Hong Kong, China
| | - H C Lee
- Internal Medicine Asan Medical Center, Seoul, Korea
| | - S G Lim
- Division of Gastroenterology and Hepatology, National University Health System, Singapore, Singapore
| | - C J Liu
- Graduate Institute of Clinical Medicine, National Taiwan University College of Medicine, Taipei, Taiwan
| | - S Locarnini
- Research and Molecular Development, Victorian Infectious Diseases Reference Laboratory, Melbourne, Australia
| | - M Al Mahtab
- Bangabandhu Sheikh Mujib Medical University, Dhaka, Bangladesh
| | - R Mohamed
- Department of Medicine, Faculty of Medicine, University Malaya, Kuala Lumpur, Malaysia
| | - M Omata
- Yamanashi Hospitals (Central and Kita) Organization, 1-1-1 Fujimi, Kofu-shi, Yamanashi, 400-8506, Japan
| | - J Park
- Department of Internal Medicine, Institute of Gastroenterology, Yonsei University College of Medicine, Seoul, Korea
| | - T Piratvisuth
- NKC Institute of Gastroenterology and Hepatology, Prince of Songkla University, Songkhla, Thailand
| | - B C Sharma
- Department of Gastroenterology, G.B. Pant Hospital, New Delhi, India
| | - J Sollano
- Department of Medicine, University of Santo Tomas, Manila, Philippines
| | - F S Wang
- Treatment and Research Center for Infectious Diseases, Beijing 302 Hospital, Beijing, China
| | - L Wei
- Peking University Hepatology Institute, Beijing, China
| | - M F Yuen
- Division of Gastroenterology and Hepatology, Department of Medicine, University of Hong Kong, Pofulam, Hong Kong
| | - S S Zheng
- Department of Hepatobiliary and Pancreatic Surgery, Collaborative Innovation Center for Diagnosis and Treatment of Infectious Diseases, Key Laboratory of Combined Multi-organ Transplantation, Ministry of Public Health, First Affiliated Hospital, Zhejiang University School of Medicine, Hangzhou, 310003, Zhejiang Province, China
| | - J H Kao
- Graduate Institute of Clinical Medicine and Hepatitis Research Center, National Taiwan University College of Medicine, National Taiwan University Hospital, Taipei, Taiwan
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Chen HS, Wang YJ, Chen PJ, Lin YH. Electrically adjustable location of a projected image in augmented reality via a liquid-crystal lens. Opt Express 2015; 23:28154-28162. [PMID: 26561086 DOI: 10.1364/oe.23.028154] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/05/2023]
Abstract
An augmented reality (AR) system involving the electrically tunable location of a projected image is implemented using a liquid-crystal (LC) lens. The projected image is either real or virtual. By effectively doubling the LC lens power following light reflection, the position of a projected virtual image can be made to vary from 42 to 360 cm, while the tunable range for a projected real image is from 27 to 52 cm on the opposite side. The optical principle of the AR system is introduced and could be further developed for other tunable focusing lenses, even those with a lower lens power. The benefits of this study could be extended to head-mounted display systems for vision correction or vision compensation. We believe that tunable focusing LC optical elements are promising developments in the thriving field of AR applications.
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Aittaleb M, Chen PJ, Akaaboune M. Failure of lysosome clustering and positioning in the juxtanuclear region in cells deficient in rapsyn. J Cell Sci 2015; 128:3744-56. [PMID: 26330529 DOI: 10.1242/jcs.172536] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2015] [Accepted: 08/23/2015] [Indexed: 01/06/2023] Open
Abstract
Rapsyn, a scaffold protein, is required for the clustering of acetylcholine receptors (AChRs) at contacts between motor neurons and differentiating muscle cells. Rapsyn is also expressed in cells that do not express AChRs. However, its function in these cells remains unknown. Here, we show that rapsyn plays an AChR-independent role in organizing the distribution and mobility of lysosomes. In cells devoid of AChRs, rapsyn selectively induces the clustering of lysosomes at high density in the juxtanuclear region without affecting the distribution of other intracellular organelles. However, when the same cells overexpress AChRs, rapsyn is recruited away from lysosomes to colocalize with AChR clusters on the cell surface. In rapsyn-deficient (Rapsn(-/-)) myoblasts or cells overexpressing rapsyn mutants, lysosomes are scattered within the cell and highly dynamic. The increased mobility of lysosomes in Rapsn(-/-) cells is associated with a significant increase in lysosomal exocytosis, as evidenced by increased release of lysosomal enzymes and plasma membrane damage when cells were challenged with the bacterial pore-forming toxin streptolysin-O. These findings uncover a new link between rapsyn, lysosome positioning, exocytosis and plasma membrane integrity.
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Affiliation(s)
- Mohamed Aittaleb
- Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Po-Ju Chen
- Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Mohammed Akaaboune
- Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, MI 48109, USA Program in Neuroscience, University of Michigan, Ann Arbor, MI 48109, USA
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Yu JH, Chen HS, Chen PJ, Song KH, Noh SC, Lee JM, Ren H, Lin YH, Lee SH. Electrically tunable microlens arrays based on polarization-independent optical phase of nano liquid crystal droplets dispersed in polymer matrix. Opt Express 2015; 23:17337-17344. [PMID: 26191743 DOI: 10.1364/oe.23.017337] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/04/2023]
Abstract
Electrically tunable focusing microlens arrays based on polarization independent optical phase of nano liquid crystal droplets dispersed in polymer matrix are demonstrated. Such an optical medium is optically isotropic which is so-called an optically isotropic liquid crystals (OILC). We not only discuss the optical theory of OILC, but also demonstrate polarization independent optical phase modulation based on the OILC. The experimental results and analytical discussion show that the optical phase of OILC microlens arrays results from mainly orientational birefringence which is much larger than the electric-field-induced birefringence (or Kerr effect). The response time of OILC microlens arrays is fast~5.3ms and the tunable focal length ranges from 3.4 mm to 3.8 mm. The potential applications are light field imaging systems, 3D integrating imaging systems and devices for augment reality.
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Chen PJ, Chiu CH, Tseng JK, Yang KT, Chen YC. Ameliorative effects of D-glucuronolactone on oxidative stress and inflammatory/fibrogenic responses in livers of thioacetamide-treated rats. J Funct Foods 2015. [DOI: 10.1016/j.jff.2015.01.026] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023] Open
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Chen MS, Chen PJ, Chen M, Lin YH. An electrically tunable imaging system with separable focus and zoom functions using composite liquid crystal lenses. Opt Express 2014; 22:11427-11435. [PMID: 24921264 DOI: 10.1364/oe.22.011427] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
We demonstrated an electrically tunable optical image system with separable focus function and zoom function based on three tunable focusing composite liquid crystal (LC) lenses. One LC lens in charge of the focus function helps to maintain the formed image at the same position and the other two LC lenses in charge of zoom function assist to continuously form an image at image sensor with tunable magnification of image size. The detail optical mechanism is investigated and the concept is demonstrated experimentally. The magnifications of the images can be switched continuously for the target in a range between 10 cm and 100 cm. The optical zoom ratio of this system maintains a constant~6.5:1 independent of the object distance. This study provides not only a guideline to design the image system with an electrically optical zoom, but also provide an experimental process to show how to operate the tunable focusing lenses in such an image system.
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Zhang P, Yao Q, Lu L, Li Y, Chen PJ, Duan C. Hypoxia-inducible factor 3 is an oxygen-dependent transcription activator and regulates a distinct transcriptional response to hypoxia. Cell Rep 2014; 6:1110-1121. [PMID: 24613356 DOI: 10.1016/j.celrep.2014.02.011] [Citation(s) in RCA: 143] [Impact Index Per Article: 14.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/26/2013] [Revised: 12/03/2013] [Accepted: 02/10/2014] [Indexed: 01/09/2023] Open
Abstract
Hypoxia-inducible factors (HIFs) play key roles in the cellular response to hypoxia. It is widely accepted that whereas HIF-1 and HIF-2 function as transcriptional activators, HIF-3 inhibits HIF-1/2α action. Contrary to this idea, we show that zebrafish Hif-3α has strong transactivation activity. Hif-3α is degraded under normoxia. Mutation of P393, P493, and L503 inhibits this oxygen-dependent degradation. Transcriptomics and chromatin immunoprecipitation analyses identify genes that are regulated by Hif-3α, Hif-1α, or both. Under hypoxia or when overexpressed, Hif-3α binds to its target gene promoters and upregulates their expression. Dominant-negative inhibition and knockdown of Hif-3α abolish hypoxia-induced Hif-3α-promoter binding and gene expression. Hif-3α not only mediates hypoxia-induced growth and developmental retardation but also possesses hypoxia-independent activities. Importantly, transactivation activity is conserved and human HIF-3α upregulates similar genes in human cells. These findings suggest that Hif-3 is an oxygen-dependent transcription factor and activates a distinct transcriptional response to hypoxia.
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Affiliation(s)
- Peng Zhang
- Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, MI 48109, USA; Key Laboratory of Marine Drugs, Ministry of Education and School of Medicine and Pharmacy, Ocean University of China, Qingdao, Shandong 266003, China
| | - Qing Yao
- Key Laboratory of Marine Drugs, Ministry of Education and School of Medicine and Pharmacy, Ocean University of China, Qingdao, Shandong 266003, China
| | - Ling Lu
- Key Laboratory of Marine Drugs, Ministry of Education and School of Medicine and Pharmacy, Ocean University of China, Qingdao, Shandong 266003, China
| | - Yun Li
- Key Laboratory of Marine Drugs, Ministry of Education and School of Medicine and Pharmacy, Ocean University of China, Qingdao, Shandong 266003, China
| | - Po-Ju Chen
- Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, MI 48109, USA
| | - Cunming Duan
- Department of Molecular, Cellular, and Developmental Biology, University of Michigan, Ann Arbor, MI 48109, USA.
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Huang CJ, Chen PJ, Chang JW, Huang DF, Chang SL, Chen SA, Jap TS, Lin LY. Amiodarone-induced thyroid dysfunction in Taiwan: a retrospective cohort study. Int J Clin Pharm 2014; 36:405-11. [PMID: 24515549 DOI: 10.1007/s11096-013-9910-9] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2013] [Accepted: 12/27/2013] [Indexed: 11/25/2022]
Abstract
BACKGROUND The incidence and risk factors of amiodarone-induced thyroid dysfunction are variable in the literature. OBJECTIVE The aim of this study was to investigate the clinical and biochemical features and risk factors of amiodarone-induced thyroid dysfunction in Taiwan. SETTING This study was conducted at a tertiary referral center for arrhythmia. METHOD Retrospective analysis of patients treated with amiodarone during the years 2008-2009 was performed. MAIN OUTCOME MEASURE Incidence and risk factors of amiodarone-induced thyrotoxicosis (AIT) and amiodarone-induced hypothyroidism (AIH) were assessed. RESULTS Of the 527 patients, 437 (82.9 %) remained euthyroid, 21 (4.0 %) developed AIT, and 69 (13.1 %) were affected with AIH. In univariate analysis, AIT was associated with younger age, and the risk factors for AIH included older age, higher baseline thyroid stimulating hormone (TSH) titer, lower baseline free T4 level, lower cumulative amiodarone dosage, and shorter amiodarone treatment duration. Cox regression analysis was performed to determine the different risk categories in the elderly population of age 65-74 (young-old), 75-84 (old-old), and ≥85 years old (oldest-old). Additionally increased risk of AIH was found in the groups of old-old (HR 2.09, 95 % CI 1.11-3.96) and oldest-old (HR 2.57, 95 % CI 1.21-4.75). In the multivariate analysis of risk factors for AIH, baseline TSH level (HR 1.38, 95 % CI 1.12-1.70) and cumulative amiodarone dosage (HR 0.95, 95 % CI 0.93-0.97) remained statistically significant. CONCLUSION AIH was much more common than AIT in Taiwan, an area with sufficient iodine intake. Higher baseline TSH level was the predominant independent risk factor for the development of AIH.
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Affiliation(s)
- Chun-Jui Huang
- Division of Endocrinology and Metabolism, Department of Medicine, Taipei Veterans General Hospital, Taipei City, Taiwan
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Wang JD, Lo SF, Li YS, Chen PJ, Lin SY, Ho TY, Lin JH, Chen LJ. Ectopic expression of OsMADS45 activates the upstream genes Hd3a and RFT1 at an early development stage causing early flowering in rice. Bot Stud 2013; 54:12. [PMID: 28510861 PMCID: PMC5432754 DOI: 10.1186/1999-3110-54-12] [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] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/11/2012] [Accepted: 03/20/2013] [Indexed: 05/09/2023]
Abstract
BACKGROUND The rice gene, OsMADS45, which belongs to the MADS-box E class gene, participates in the regulation of floral development. Previous studies have revealed that ectopic expression of OsMADS45 induces early flowering and influences reduced plant height under short-day (SD) conditions. However, the regulation mechanism of OsMADS45 overexpression remains unknown. We introduce an OsMADS45 overexpression construct Ubi:OsMADS45 into TNG67 plants (an Hd1 (Heading date 1) and Ehd1 (Early heading date 1) defective rice cultivar grown in Taiwan), and we analyzed the expression patterns of various floral regulators to understand the regulation pathways affected by OsMADS45 expression. RESULTS The transgenic rice exhibit a heading date approximately 40 days earlier than that observed in TNG67 plants, and transgenic rice display small plant size and low grain yield. OsMADS45 overexpression did not alter the oscillating rhythm of the examined floral regulatory genes but advanced (by approximately 20 days) the up-regulate of two florigens, Hd3a (Heading Date 3a) and RFT1 (RICE FLOWERING LOCUS T1) and suppressed the expression of Hd1 at the juvenile stage. The expression levels of OsMADS14 and OsMADS18, which are two well-known reproductive phase transition markers, were also increased at early developmental stages and are believed to be the major regulators responsible for early flowering in OsMADS45-overexpressing transgenic rice. OsMADS45 overexpression did not influence other floral regulator genes upstream of Hd1 and Ehd1, such as OsGI (OsGIGANTEA), Ehd2/Osld1/RID1 and OsMADS50. CONCLUSION These results indicate that in transgenic rice, OsMADS45 overexpressing ectopically activates the upstream genes Hd3a and RFT1 at early development stage and up-regulates the expression of OsMADS14 and OsMADS18, which induces early flowering.
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Affiliation(s)
- Jiun-Da Wang
- Department of Life Sciences, National Chung Hsing University, Taichung 402, Taiwan
| | - Shuen-Fang Lo
- Institute of Molecular Biology, National Chung Hsing University, Taichung 402, Taiwan
- Institute of Molecular Biology, Academia Sinica, Taipei 115, Taiwan
| | - Yan-Suan Li
- Institute of Molecular Biology, National Chung Hsing University, Taichung 402, Taiwan
| | - Po-Ju Chen
- Institute of Molecular Biology, National Chung Hsing University, Taichung 402, Taiwan
| | - Shih-Yun Lin
- Department of Life Sciences, National Chung Hsing University, Taichung 402, Taiwan
- Institute of Plant and Microbiology, Academia Sinica, Taipei 115, Taiwan
| | - Teh-Yuan Ho
- Institute of Molecular Biology, National Chung Hsing University, Taichung 402, Taiwan
| | - Jenq-Horng Lin
- Department of Life Sciences, National Chung Hsing University, Taichung 402, Taiwan
| | - Liang-Jwu Chen
- Institute of Molecular Biology, National Chung Hsing University, Taichung 402, Taiwan
- Agricultural Biotechnology Center, National Chung Hsing University, Taichung 402, Taiwan
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Zhan Y, Chen PJ, Sadler WD, Wang F, Poe S, Núñez G, Eaton KA, Chen GY. Gut microbiota protects against gastrointestinal tumorigenesis caused by epithelial injury. Cancer Res 2013; 73:7199-210. [PMID: 24165160 DOI: 10.1158/0008-5472.can-13-0827] [Citation(s) in RCA: 78] [Impact Index Per Article: 7.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Inflammation is a critical player in the development of both colitis-associated and sporadic colon cancers. Several studies suggest that the microbiota contribute to inflammation and tumorigenesis; however, studies to understand the role of the microbiota in colon tumor development in germ-free (GF) mice are limited. We therefore studied the effects of the microbiota on the development of inflammation and tumors in GF and conventionally raised specific pathogen-free (SPF) mice treated with azoxymethane (AOM) and dextran sulfate sodium (DSS). We discovered that GF mice developed significantly more and larger tumors compared with that in SPF mice after AOM and DSS treatment despite the lack of early acute inflammation in response to chemically induced injury by DSS. Although the extent of intestinal epithelial damage and apoptosis was not significantly different in GF and SPF mice, there was a delay in intestinal epithelial repair to DSS-induced injury in GF mice resulting in a late onset of proinflammatory and protumorigenic responses and increased epithelial proliferation and microadenoma formation. Recolonization of GF mice with commensal bacteria or administration of lipopolysaccharide reduced tumorigenesis. Thus, although commensal bacteria are capable of driving chronic inflammation and tumorigenesis, the gut microbiota also have important roles in limiting chemically induced injury and proliferative responses that lead to tumor development.
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Affiliation(s)
- Yu Zhan
- Authors' Affiliations: Division of Hematology and Oncology, Department of Internal Medicine, Department of Pathology, Comprehensive Cancer Center, Unit for Laboratory Animal Medicine, and Department of Microbiology and Immunology, University of Michigan Medical School, University of Michigan, Ann Arbor, Michigan
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Wang H, Du Q, Chen PJ, Li JA, He XH. Quantitative ultrasound measurements of bone strength in female adolescent idiopathic scoliosis patients. Scoliosis 2013. [PMCID: PMC3675426 DOI: 10.1186/1748-7161-8-s1-o7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Download PDF] [Subscribe] [Scholar Register] [Indexed: 11/10/2022]
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Abstract
Neutrophil to lymphocyte ratio and levels of pro-inflammatory cytokines were evaluated in overweight, male Chinese adolescents upon completing a 4-week diet and physical exercise intervention. 43 recruited, non-randomized adolescents (body mass index >25 kg/m2) completed the controlled study. Anthropometric and biologic parameters were measured pre- and post-intervention. After the 4-week intervention, participants exhibited a significant decrease in body mass, body mass index, percentage body fat, basal heart rate, diastolic blood pressure, and all body shape indices tested. A significant decrease in serum lipids (except high-density lipoprotein cholesterol) and insulin levels was observed post-intervention. The neutrophil to lymphocyte ratio was significantly lower post-intervention. Bivariate correlation analyses showed that decrement in Δneutrophil to lymphocyte ratio significantly correlated with decrement in Δinterleukin-6 and Δwhite blood cell count. Thus, a 4-week diet and physical exercise intervention significantly reduces the neutrophil to lymphocyte ratio in a population of overweight, male adolescents. Weight loss caused by the intervention was associated with a significant decrease of pro-inflammatory cytokine levels.
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Affiliation(s)
- R Wang
- Shanghai University of Sport, Department of Sports Medicine, Shanghai, China
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Huang TY, Chen PJ, Liu YC, Jin JS. Inflammatory myofibroblastic tumor of the terminal ileum. Endoscopy 2011; 43 Suppl 2 UCTN:E14-5. [PMID: 21271518 DOI: 10.1055/s-0030-1255823] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 12/10/2022]
Affiliation(s)
- T Y Huang
- Division of Gastroenterology, Department of Internal Medicine, Tri-Service General Hospital, Taiwan, Republic of China.
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Chen PJ, Tsai MY, Chi CC, Perng TP. On the formation and photoluminescence of Si(1-x)Ge(x) nanoparticles. J Nanosci Nanotechnol 2007; 7:3340-3343. [PMID: 18019172 DOI: 10.1166/jnn.2007.916] [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] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
Si(1-x)Ge(x) nanoparticles were prepared from two annealed alloy ingots at the compositions of Si:Ge = 9.5:0.5 and 9:1 using a vapor condensation technique under Ar atmosphere. These nanoparticles are all spherical, and increasing the working pressure leads to an increased particle size and size dispersion. Comparing to the alloy ingots, the nanoparticles have a higher average content of Ge. In addition, increasing the working pressure also causes the Si(1-x)Ge(x) nanoparticles to become more Ge-rich. This can be ascribed to the lower melting point and higher kinetic energy of Ge than Si during the evaporation process. The photoluminescence of Si(1-x)Ge(x) nanoparticles ranges from visible light to infrared region, and the luminescence peak exhibits a red shift as the Ge content in the nanoparticles increases. This indicates that the incorporation of Ge into Si has a dominant effect in the radiative recombination process, in comparison with the constant luminescence peak position in the case of pure Si nanoparticles with similar size distribution.
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Affiliation(s)
- P J Chen
- Department of Materials Science and Engineering, National Tsing Hua University, Hsinchu 300, Taiwan
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Abstract
The hepatitis delta virus (HDV) genome has only one open reading frame, which encodes the viral small delta antigen. After RNA editing, the same open reading frame is extended 19 amino acids at the carboxyl terminus and encodes the large delta antigen. These two viral proteins escort the HDV genome through different cellular compartments for the complicated phases of replication, transcription and, eventually, the formation of progeny virions. To orchestrate these events, the delta antigens have to take distinct cues to traffic to the right compartments and make correct molecular contacts. In eukaryotes, post-translational modification (PTM) is a major mechanism of dictating the multiple functions of a single protein. Multiple PTMs, including phosphorylation, isoprenylation, acetylation, and methylation, have been identified on hepatitis delta antigens. In this chapter we review these PTMs and discuss their functions in regulating and coordinating the life cycle of HDV.
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Affiliation(s)
- W H Huang
- Graduate Institute of Clinical Medicine, College of Medicine, National Taiwan University, and Hepatitis Research Center, National Taiwan University Hospital, Taipei
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Ricci P, Tesone DV, Chen PJ. Rolling the dice on casinos in Florida: Will residents view legalized casino gaming as a cure for a financial crisis? JGI 2004. [DOI: 10.4309/jgi.2004.11.17] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
This article considers the viability of casino gaming as one potential solution for Florida's current lackluster financial condition, due to declines in tourism revenues and increased education costs. The article suggests that similar conditions have motivated voters to set aside personal disdain for legalized forms of gambling in the interest of financial gains. It concludes with the next logical step of condoning casino gaming as a means to solve current budgetary woes and considers potential research to predict such an event.
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Abstract
Subtypes of hepatitis B virus (HBV) have specific geographic distributions and can serve as epidemiological markers. The relationship of HBV serotypes and genotypes in Taiwan and their correlation with the domiciles of origin in 122 patients with chronic HBV infection were investigated. The serotype of HBV was determined by comparing the surface gene encoding amino acids 22-148 of the major surface protein with published sequences. Genotyping of HBV was performed by polymerase chain reaction-restriction fragment length polymorphism. Serotype adw accounted for 70% (85/122) of all HBVs, with the remaining belonging to serotype adr. All adr HBVs were genotype C, regardless of the patient's domicile. Of the 85 adw HBVs, 69 (81%) were genotype B, 10 (12%) were genotype C, 5 (6%) were genotype F and only 1 (1%) was genotype A. In the 31 patients originating from mainland China, the prevalence of adr/genotype C was higher than in the 91 Taiwanese patients (15/31 vs. 22/91; p < 0.05). The distribution of the HBV serotypes and genotypes was not significantly different between 17 patients born in Taiwan (6 adw/genotype B, 2 adw/genotype C, 1 adw/genotype F and 8 adr/genotype C) and 14 patients born in mainland China (5 adw/genotype B, 2 adw/genotype C and 7 adr/genotype C). Our results indicate that in Taiwan, most HBVs of serotype adw are genotype B, and all HBVs of serotype adr are genotype C. Patients with origins in mainland China have a higher proportion of serotype adr/genotype C infection.
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Affiliation(s)
- C J Liu
- Department of Internal Medicine, National Taiwan University College of Medicine and National Taiwan University Hospital, Taipei, Taiwan, ROC
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Yu BKJ, Kuo BIT, Yen MS, Twu NF, Lai CR, Chen PJ, Chien PS, Chao KC, Yuan CC. Improved early detection of cervical intraepithelial lesions by combination of conventional Pap smear and speculoscopy. EUR J GYNAECOL ONCOL 2003; 24:495-9. [PMID: 14658588] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 04/27/2023]
Abstract
PURPOSE To evaluate the efficacy of the addition of speculoscopy to a Pap smear in cervical cancer screening. METHODS All women were screened using the Pap smear plus speculoscopy (PapSure) and colposcopy in the multicenter trial. The final diagnosis of each patient was based on a histological evaluation of the colposcopic target biopsy. Results were analyzed using a proportional compare test, sensitivity, specificity and predictive value with significant value determined at less than 0.05. RESULTS Of 1,717 eligible cases, 26 cases had LGSIL and 16 cases had HGSIL. Of the Pap smears, five cases had LSIL and 14 cases had HGSIL. Of the combination of the PapSure, 23 cases had LGSIL and 16 cases had HGSIL. The sensitivity of the Pap smear to that of PapSure was calculated at 45.2% and 92.9%, respectively (p < 0.001). The estimated cost to detect a cervical lesion using PapSure is less than that of the Pap smear. CONCLUSION The addition of speculoscopy along with a Pap smear screening results in early detection of cervical lesions in comparison to the Pap smear alone. This screening combination is also more cost-effective and requires fewer visits to the clinic in comparison to a Pap smear screening alone.
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Affiliation(s)
- B K J Yu
- Department of Obstetrics and Gynecology, Taipei Veterans General Hospital, Taiwan, ROC
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48
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Abstract
Subtypes of hepatitis B virus (HBV) have specific geographic distributions and can serve as epidemiological markers. The relationship of HBV serotypes and genotypes in Taiwan and their correlation with the domiciles of origin in 122 patients with chronic HBV infection were investigated. The serotype of HBV was determined by comparing the surface gene encoding amino acids 22-148 of the major surface protein with published sequences. Genotyping of HBV was performed by polymerase chain reaction-restriction fragment length polymorphism. Serotype adw accounted for 70% (85/122) of all HBVs, with the remaining belonging to serotype adr. All adr HBVs were genotype C, regardless of the patient's domicile. Of the 85 adw HBVs, 69 (81%) were genotype B, 10 (12%) were genotype C, 5 (6%) were genotype F and only 1 (1%) was genotype A. In the 31 patients originating from mainland China, the prevalence of adr/genotype C was higher than in the 91 Taiwanese patients (15/31 vs. 22/91; p < 0.05). The distribution of the HBV serotypes and genotypes was not significantly different between 17 patients born in Taiwan (6 adw/genotype B, 2 adw/genotype C, 1 adw/genotype F and 8 adr/genotype C) and 14 patients born in mainland China (5 adw/genotype B, 2 adw/genotype C and 7 adr/genotype C). Our results indicate that in Taiwan, most HBVs of serotype adw are genotype B, and all HBVs of serotype adr are genotype C. Patients with origins in mainland China have a higher proportion of serotype adr/genotype C infection.
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Affiliation(s)
- C J Liu
- Department of Internal Medicine, National Taiwan University College of Medicine and National Taiwan University Hospital, Taipei, Taiwan, ROC
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Kao JH, Lai MY, Chen PJ, Chen DS. Probable reinfection with hepatitis C virus in a chronic hepatitis C patient with a sustained response to combination therapy. J Formos Med Assoc 2001; 100:824-8. [PMID: 11802523] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/23/2023] Open
Abstract
Superinfection with hepatitis C virus (HCV) in already chronically infected subjects has been documented. Whether a complete response to antiviral therapy is associated with protective immunity against reinfection with HCV remains unknown. We describe a patient who had a sustained biochemical and virologic response with loss of intrahepatic HCV RNA after a course of combination therapy using interferon plus ribavirin. Histopathologically, the chronic hepatitis was in remission on follow-up biopsy 6 months post-therapy. Unfortunately, 34 weeks post-therapy, a flare of hepatitis with reappearance of hepatitis C viremia was noted 2 months after he received injections from a non-licensed medical provider. Analysis of the core gene sequences showed a 95% homology between the HCV strains isolated before antiviral treatment and during the hepatitis flare. The data indicated that the hepatitis flare after a period of sustained response to combination therapy in this patient could have been caused by reinfection with homotypic HCV. Our observation indicates the lack of protective immunity against reinfection with HCV in patients with chronic hepatitis C, even after successful clearance of the virus. Therefore, reinforcing the education of these subjects to avoid HCV reinfection should be stressed.
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Affiliation(s)
- J H Kao
- Graduate Institute of Clinical Medicine, National Taiwan University College of Medicine, National Taiwan University Hospital, Taipei, Taiwan
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Wu HL, Chen PJ, Lin HK, Lee RS, Lin HL, Liu CJ, Lee PJ, Lee JJ, Chen DS. Molecular cloning and expression of woodchuck granulocyte-macrophage colony stimulating factor. J Med Virol 2001; 65:567-75. [PMID: 11596095] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/21/2023]
Abstract
Granulocyte-macrophage colony stimulating factor (GM-CSF) has immunoregulatory and antiviral effects, and may thus be promising for the treatment of chronic hepatitis B. Using woodchuck hepatitis virus (WHV)-infected woodchuck as an animal model to test the efficacy and safety of GM-CSF on the therapy of chronic hepatitis B, woodchuck GM-CSF will be required due to the apparent species-specific activity of GM-CSF. The cDNA of woodchuck GM-CSF was cloned using reverse transcription-polymerase chain reaction (RT-PCR) with primers deriving from highly conserved regions of GM-CSF genes from other species. The deduced amino acids, including the signal peptide, is 138 in length and its identities to human, murine, canine and bovine GM-CSFs are 63, 49, 63, and 63% respectively. The genomic DNA of woodchuck GM-CSF was also cloned by PCR. Its organization is highly homologous to that of human and murine GM-CSF genes, consisting of four exons and three introns. Cloned woodchuck GM-CSF was expressed transiently in 293T cells. The recombinant protein expressed was found to stimulate the growth and differentiation of woodchuck bone marrow cells, indicating the protein expressed by the cloned gene is functional. These results pave the way for future studies on the potential role of GM-CSF for the treatment of chronic hepatitis B by using this animal model.
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Affiliation(s)
- H L Wu
- Hepatitis Research Center, National Taiwan University Hospital, 7 Chung-Shan South Road, Taipei, Taiwan
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