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Tian S, McCook A, Choi IJ, Simone CB, Vargas CE, Yu NY, Chang JHC, Mihalcik SA, Tsai H, Zeng J, Rosen LR, Rana ZH, Urbanic JJ, Stokes WA, Kesarwala AH, Bradley JD, Higgins KA. Treatment of Thymoma and Thymic Carcinoma with Proton Beam Therapy: Outcomes from the Proton Collaborative Group Prospective Registry. Int J Radiat Oncol Biol Phys 2023; 117:e66. [PMID: 37785956 DOI: 10.1016/j.ijrobp.2023.06.792] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/04/2023]
Abstract
PURPOSE/OBJECTIVE(S) Given the generally long natural history of thymic malignancies, proton beam therapy (PBT) is advocated to minimize the risk of long-term toxicities to mediastinal organs. Adverse events (AE) and long-term clinical outcomes for this population have not been well-characterized. MATERIALS/METHODS The Proton Collaborative Group registry (NCT01255748), a multi-institutional prospective database of academic and community proton centers in the US, was queried for patients with thymomas and thymic carcinomas treated with PBT. Patients with recurrent/metastatic disease, non-thymic histology, received either prior or palliative radiotherapy (dose < 40 Gy RBE) were excluded. Overall survival (OS) and local control (LC) were estimated using Kaplan-Meier methods. RESULTS A total of 97 patients were identified in the PCG registry. After applying relevant exclusion criteria, 70 patients from 12 proton centers treated from 2011-2021 were included for analysis. Median follow-up length was 16 months. Median age was 58.5 years (IQR 46-63), and 60% were female. 81.4% had a diagnosis of thymoma, and 18.6% thymic carcinoma. 59 patients underwent surgical resection. 11 were treated with definitive PBT, of which 5 received concurrent chemotherapy. Median dose was 54 Gy RBE (range 41.4 - 70 Gy RBE), median number of fractions was 30 (range 21 - 38). 73.4% received pencil beam scanning and 23% uniform scanning PBT. Treatment was overall well-tolerated: a single patient developed grade 4 pneumonitis. Grade 3 AEs were seen in 3 patients - dyspnea, anorexia, and heart failure. Highest grade toxicity experienced was grade 2 for 47.1% and grade 1 for 42.9% of patients. 3-year overall survival (OS) was 82.6% for the entire cohort. 3-year OS was 94% for resected/adjuvant cohort and 35.6% in the non-surgical/definitive cohort. 3-year local control (LC) was 91.7% for the entire cohort. By surgery/margin status, 3-year LC was 96.8% in patients with close or negative margins (a single failure in a patient with close margins), whereas 3-year LC was 55.1% for patients with positive margins/unresectable disease. CONCLUSION Thymic malignancies treated with PBT appear to have favorable outcomes, especially in the adjuvant setting, in this cohort representing the largest series of such patients.
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Affiliation(s)
- S Tian
- Department of Radiation Oncology, Winship Cancer Institute of Emory University, Atlanta, GA
| | - A McCook
- Emory Winship Cancer Institute, Atlanta, GA
| | - I J Choi
- Memorial Sloan Kettering Cancer Center, New York, NY
| | | | - C E Vargas
- Department of Radiation Oncology, Mayo Clinic, Phoenix, AZ
| | - N Y Yu
- Department of Radiation Oncology, Mayo Clinic, Phoenix, AZ
| | - J H C Chang
- The Oklahoma Proton Center, Oklahoma City, OK
| | - S A Mihalcik
- Northwestern Medicine Chicago Proton Center, Warrenville, IL
| | - H Tsai
- Procure Proton Therapy Center, Somerset, NJ
| | - J Zeng
- Department of Radiation Oncology, University of Washington - Fred Hutchinson Cancer Center, Seattle, WA
| | - L R Rosen
- Willis-Knighton Proton Therapy Center, Shreveport, LA
| | - Z H Rana
- Department of Radiation Oncology, University of Maryland Medical Center, Baltimore, MD
| | | | - W A Stokes
- Winship Cancer Institute of Emory University, Department of Radiation Oncology, Atlanta, GA
| | - A H Kesarwala
- Department of Radiation Oncology, Winship Cancer Institute of Emory University, Atlanta, GA
| | - J D Bradley
- Department of Radiation Oncology, Winship Cancer Institute of Emory University, Atlanta, GA
| | - K A Higgins
- Department of Radiation Oncology, Winship Cancer Institute of Emory University, Atlanta, GA
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Ambrogio S, Narayanan P, Okazaki A, Fasoli A, Mackin C, Hosokawa K, Nomura A, Yasuda T, Chen A, Friz A, Ishii M, Luquin J, Kohda Y, Saulnier N, Brew K, Choi S, Ok I, Philip T, Chan V, Silvestre C, Ahsan I, Narayanan V, Tsai H, Burr GW. An analog-AI chip for energy-efficient speech recognition and transcription. Nature 2023; 620:768-775. [PMID: 37612392 PMCID: PMC10447234 DOI: 10.1038/s41586-023-06337-5] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/13/2022] [Accepted: 06/16/2023] [Indexed: 08/25/2023]
Abstract
Models of artificial intelligence (AI) that have billions of parameters can achieve high accuracy across a range of tasks1,2, but they exacerbate the poor energy efficiency of conventional general-purpose processors, such as graphics processing units or central processing units. Analog in-memory computing (analog-AI)3-7 can provide better energy efficiency by performing matrix-vector multiplications in parallel on 'memory tiles'. However, analog-AI has yet to demonstrate software-equivalent (SWeq) accuracy on models that require many such tiles and efficient communication of neural-network activations between the tiles. Here we present an analog-AI chip that combines 35 million phase-change memory devices across 34 tiles, massively parallel inter-tile communication and analog, low-power peripheral circuitry that can achieve up to 12.4 tera-operations per second per watt (TOPS/W) chip-sustained performance. We demonstrate fully end-to-end SWeq accuracy for a small keyword-spotting network and near-SWeq accuracy on the much larger MLPerf8 recurrent neural-network transducer (RNNT), with more than 45 million weights mapped onto more than 140 million phase-change memory devices across five chips.
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Affiliation(s)
- S Ambrogio
- IBM Research - Almaden, San Jose, CA, USA.
| | | | - A Okazaki
- IBM Research - Tokyo, Kawasaki, Japan
| | - A Fasoli
- IBM Research - Almaden, San Jose, CA, USA
| | - C Mackin
- IBM Research - Almaden, San Jose, CA, USA
| | | | - A Nomura
- IBM Research - Tokyo, Kawasaki, Japan
| | - T Yasuda
- IBM Research - Tokyo, Kawasaki, Japan
| | - A Chen
- IBM Research - Almaden, San Jose, CA, USA
| | - A Friz
- IBM Research - Almaden, San Jose, CA, USA
| | - M Ishii
- IBM Research - Tokyo, Kawasaki, Japan
| | - J Luquin
- IBM Research - Almaden, San Jose, CA, USA
| | - Y Kohda
- IBM Research - Tokyo, Kawasaki, Japan
| | - N Saulnier
- IBM Research - Albany NanoTech Center, Albany, NY, USA
| | - K Brew
- IBM Research - Albany NanoTech Center, Albany, NY, USA
| | - S Choi
- IBM Research - Albany NanoTech Center, Albany, NY, USA
| | - I Ok
- IBM Research - Albany NanoTech Center, Albany, NY, USA
| | - T Philip
- IBM Research - Albany NanoTech Center, Albany, NY, USA
| | - V Chan
- IBM Research - Albany NanoTech Center, Albany, NY, USA
| | - C Silvestre
- IBM Research - Albany NanoTech Center, Albany, NY, USA
| | - I Ahsan
- IBM Research - Albany NanoTech Center, Albany, NY, USA
| | - V Narayanan
- IBM Thomas J. Watson Research Center, Yorktown Heights, NY, USA
| | - H Tsai
- IBM Research - Almaden, San Jose, CA, USA
| | - G W Burr
- IBM Research - Almaden, San Jose, CA, USA
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Tsai H, Yang S, Hsiao C, Kao H, Shan Y, Lin Y, Yen C, Du J, Hsu C, Wu I, Chen L. P-140 A phase I study of biweekly abraxane in combination with oxaliplatin and oral S-1/leucovorin as first line treatment for advanced gastric, pancreatic and biliary tract cancers. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.05.195] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022] Open
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Lin C, Chang C, Hsiao J, Wu J, Tsai H. 0659 A Safe and Precise Tongue Base Surgery for Obstructive Sleep Apnea: Real-Time Intraoperative Ultrasound-Assisted Transoral Robotic Surgery. Sleep 2020. [DOI: 10.1093/sleep/zsaa056.655] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Introduction
Lingual artery (LA) injury is a devastating complication of tongue base surgery. Compared with the anatomic findings of computed tomography angiography (CTA), intraoperative blade of mouth gag might change the thickness of base of tongue (BOT) and anatomy of LA. We aimed to investigate the position of LA in the BOT with intraoperative ultrasound (IOU) imaging during transoral robotic surgery (TORS), and evaluate the bleeding complications when assisted with / without IOU.
Methods
Adult obstructive sleep apnea (OSA) patients who received TORS in BOT resection were recruited since 2016. Assessment tools were pre-op over-night hospital polysomnography (PSG) and anatomy-based Friedman Staging System. Ultrasound imaging was utilized to identify anatomic parameters of LA in BOT, including distance to midline, arterial depth and diameter.
Results
Ninety-three OSA patients (82 male, 88.2%) were analyzed. The mean age was 42.2±10.0 years old and body mass index was 29.2±4.5 kg/m2. The average apnea hypopnea index (AHI) was 58.1±21.4 events/hour. There were 66 (71.0%), 24 (25.8%) and 3 (3.2%) patients in Friedman stages II, III and IV, respectively. Seventy patients underwent TORS with IOU had shorter operation time (191.7±3.8 minutes) than 23 patients without IOU (220.1±6.6 minutes), less total blood loss (11.3±10.8 versus 19.6±26.7 ml), and more BOT tissue reduction volume (7.1±2.5 versus 3.9±1.6 ml). Significant predictors of arterial depth were higher AHI level during rapid-eye-movement (REM) sleep stage (p=0.038), bigger tonsil size (p=0.034) and more elevated Friedman tongue position (p=0.012). Postoperative complication associated with LA injury was not found in the patients with use of IOU.
Conclusion
When tongue retracted with blade, the distance to midline and depth of LA were altered in BOT. With IOU assisted, surgeon could identify LA position confidently. It is expectable to maximize efficiency and minimize catastrophic bleeding complications when OSA patients received TORS in BOT resection.
Support
nil
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Affiliation(s)
- C Lin
- ENT Department, National Cheng Kung University Hospital, Tainan, TAIWAN
- Sleep Medicine Center, National Cheng Kung University Hospital, Tainan, TAIWAN
| | - C Chang
- ENT Department, National Cheng Kung University Hospital, Tainan, TAIWAN
| | - J Hsiao
- ENT Department, National Cheng Kung University Hospital, Tainan, TAIWAN
| | - J Wu
- ENT Department, National Cheng Kung University Hospital, Tainan, TAIWAN
| | - H Tsai
- Spring-Sun Psychiatric Clinic, Tainan, TAIWAN
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Tsai H, Kuo T, Yang C. 0461 Blunted Baroreflex Sensitivity and Reduced Morning Parasympathetic Activity in Sleep-Onset Insomnia. Sleep 2020. [DOI: 10.1093/sleep/zsaa056.458] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Abstract
Introduction
Insomnia is a risk factor for hypertension and cardiovascular events, and this association is strongest for sleep-onset insomnia. However, little is known about insomnia on cardiovascular modulation, especially soon after morning awakening, the peak period of time for cardiovascular incidents. This study explored morning cardiovascular function in individuals with sleep-onset insomnia by analysing heart rate variability, blood pressure variability, and baroreflex sensitivity.
Methods
Sleep structure of the participants (15 good sleepers and 13 individuals with sleep-onset insomnia) was measured by laboratory polysomnography, followed by continuous recordings of the participant’s blood pressure and heart rate for 10 min in the morning.
Results
When compared to the good sleepers, the insomnia group showed significant reductions in total sleep time, a longer sleep-onset latency, and reduced sleep efficiency. The sleep structure, including durations of sleep stages, numbers of awakenings and arousal index did not differ between the groups. After morning awakening (averaged time: 12.33 ± 10.48 min), the shorter R-R intervals, lower total power, and lower high-frequency power of heart rate variability were observed among individuals with sleep-onset insomnia, compared with good sleepers. Elevated slopes of systolic and diastolic blood pressure, as well as lower baroreflex sensitivity, were also shown in the insomnia group. Indices of sympathetic activity, including low-frequency percentage of heart rate variability or low-frequency power of blood pressure variability, did not differ between the groups.
Conclusion
Weak vagal activity and blunted baroreflex sensitivity were evident among sleep-onset insomnia. These findings indicate difficulty in initiating sleep, without significant sleep fragmentation, can independently affect morning cardiovascular function. This study provides a possible link between sleep-onset insomnia and risk of cardiovascular events.
Support
N/A
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Affiliation(s)
- H Tsai
- Institute of Brain Science, National Yang-Ming University, Taipei, TAIWAN
| | - T Kuo
- Institute of Brain Science, National Yang-Ming University, Taipei, TAIWAN
- Sleep Research Center, National Yang-Ming University, Taipei, TAIWAN
| | - C Yang
- Institute of Brain Science, National Yang-Ming University, Taipei, TAIWAN
- Sleep Research Center, National Yang-Ming University, Taipei, TAIWAN
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Chen S, Wu H, Wu K, Chen Y, Tsai H, Lee S. Cytomegalovirus co-infection and the need for the ventilator use are associated with higher mortality in patients with pneumocystis. J Infect Public Health 2020. [DOI: 10.1016/j.jiph.2020.01.105] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
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7
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Lai Y, Tsai H. P2.10-13 Effects of the Advanced Tobacco Control Training (ATCT) on Healthcare Professionals’ Smoking Cessation Knowledge and Counseling. J Thorac Oncol 2019. [DOI: 10.1016/j.jtho.2019.08.1697] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022]
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Abstract
OBJECTIVE Given previous research examining the relationship between physical activity (PA) and working memory in children has not taken into account of potentially confounders, this study specifically controlled for the effects of intelligence and fitness-related factors (i.e., aerobic and motor fitness) on this relationship. METHOD Thirty-two children were assigned to either the higher PA group (HP) (n = 16) or lower PA group (LP) (n = 16) based on their amount of PA as measured by an accelerometer. Working memory was measured by the delayed-matching test, with concurrent recordings of event-related potentials including the P3 and the positive slow wave (PSW) components. RESULTS Data analysis controlling for the effects of potential confounders found that the HP group had higher response accuracy in both task conditions relative to the LP group. For reaction times (RT), the HP group showed shorter RT than the LP group in the delayed condition. Furthermore, the HP group had similar P3 amplitudes across task conditions, whereas amplitudes in the delayed condition were smaller than that in the non-delayed condition in the LP group. In addition, the HP group also showed larger PSW amplitudes than the LP group. Supplementary partial correlations analysis indicated negative correlations between levels of PA with RT in both task conditions, and positive correlations with P3 amplitude and PSW amplitude in the delayed condition. CONCLUSIONS Children with higher levels of PA, while controlling for individual differences in intelligence and fitness-related factors, have better working memory as assessed by both behavioral and neuroelectric measures. (PsycINFO Database Record (c) 2018 APA, all rights reserved).
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Affiliation(s)
| | | | - Heng Tsai
- Physical Education Section, Jinwen University of Science and Technology
| | - Yu-Kai Chang
- Graduate Institute of Athletics and Coaching Science, National Taiwan Sport University
| | - Chung-Ju Huang
- Graduate Institute of Sports Pedagogy, University of Taipei
| | - Tsung-Min Hung
- Department of Physical Education and Institute for Research Excellence in Learning Science
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9
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Ma C, Tsai H, Su W, Sun L, Shih Y, Wang J. Combination of arginine, glutamine, and omega-3 fatty acid supplements for perioperative enteral nutrition in surgical patients with gastric adenocarcinoma or gastrointestinal stromal tumor (GIST): A prospective, randomized, double-blind study. J Postgrad Med 2018; 64:155-163. [PMID: 29848836 PMCID: PMC6066627 DOI: 10.4103/jpgm.jpgm_693_17] [Citation(s) in RCA: 17] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/27/2017] [Revised: 02/16/2018] [Accepted: 04/03/2018] [Indexed: 01/01/2023] Open
Abstract
Background Perioperative enteral nutrition (EN) enriched with immune-modulating substrates is preferable for patients undergoing major abdominal cancer surgery. In this study, perioperative EN enriched with immune-modulating nutrients such as arginine, glutamine, and omega-3 fatty acids was evaluated for its anti-inflammatory efficacy in patients with gastric adenocarcinoma or gastrointestinal stromal tumor (GIST) receiving curative surgery. Materials and Methods This prospective, randomized, double-blind study recruited 34 patients with gastric adenocarcinoma or gastric GIST undergoing elective curative surgery. These patients were randomly assigned to the study group, receiving immune-modulating nutrient-enriched EN, or the control group, receiving standard EN from 3 days before surgery (preoperative day 3) to up to postoperative day 14 or discharge. Laboratory and inflammatory parameters were assessed on preoperative day 3 and postoperative day 14 or at discharge. Adverse events (AEs) and clinical outcomes were documented daily and compared between groups. Results No significant differences were observed between the two groups in selected laboratory and inflammatory parameters, or in their net change, before and after treatment. AEs and clinical outcomes, including infectious complications, overall complications, time to first bowel action, and length of hospital stay after surgery, were comparable between treatment groups (all P > 0.05). Conclusion Immune-modulating nutrient-enriched EN had no prominent immunomodulation effect compared with that of standard EN.
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Affiliation(s)
- C Ma
- Division of Digestive and General Surgery, Department of Surgery, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
- Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
- Division of Colorectal Surgery, Department of Surgery, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - H Tsai
- Division of Colorectal Surgery, Department of Surgery, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
- Division of General Medicine Surgery, Department of Surgery, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
- Department of Surgery, Faculty of Medicine, College of Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - W Su
- Division of Colorectal Surgery, Department of Surgery, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
- Division of General Medicine Surgery, Department of Surgery, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - L Sun
- Nutrition Service Team, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
- Department of Nursing, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - Y Shih
- Nutrition Service Team, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
- Department of Nursing, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
| | - J Wang
- Graduate Institute of Clinical Medicine, College of Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
- Division of Colorectal Surgery, Department of Surgery, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
- Department of Surgery, Faculty of Medicine, College of Medicine, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
- Nutrition Service Team, Kaohsiung Medical University Hospital, Kaohsiung, Taiwan
- Center for Biomarkers and Biotech Drugs, Kaohsiung Medical University, Kaohsiung, Taiwan
- Research Center for Environmental Medicine, Kaohsiung Medical University, Kaohsiung, Taiwan
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Blancon JC, Stier AV, Tsai H, Nie W, Stoumpos CC, Traoré B, Pedesseau L, Kepenekian M, Katsutani F, Noe GT, Kono J, Tretiak S, Crooker SA, Katan C, Kanatzidis MG, Crochet JJ, Even J, Mohite AD. Scaling law for excitons in 2D perovskite quantum wells. Nat Commun 2018; 9:2254. [PMID: 29884900 PMCID: PMC5993799 DOI: 10.1038/s41467-018-04659-x] [Citation(s) in RCA: 301] [Impact Index Per Article: 50.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/21/2017] [Accepted: 05/09/2018] [Indexed: 12/03/2022] Open
Abstract
Ruddlesden–Popper halide perovskites are 2D solution-processed quantum wells with a general formula A2A’n-1MnX3n+1, where optoelectronic properties can be tuned by varying the perovskite layer thickness (n-value), and have recently emerged as efficient semiconductors with technologically relevant stability. However, fundamental questions concerning the nature of optical resonances (excitons or free carriers) and the exciton reduced mass, and their scaling with quantum well thickness, which are critical for designing efficient optoelectronic devices, remain unresolved. Here, using optical spectroscopy and 60-Tesla magneto-absorption supported by modeling, we unambiguously demonstrate that the optical resonances arise from tightly bound excitons with both exciton reduced masses and binding energies decreasing, respectively, from 0.221 m0 to 0.186 m0 and from 470 meV to 125 meV with increasing thickness from n equals 1 to 5. Based on this study we propose a general scaling law to determine the binding energy of excitons in perovskite quantum wells of any layer thickness. Hybrid 2D layered perovskites are solution-processed quantum wells whose optoelectronic properties are tunable by varying the thickness of the inorganic slab. Here Blancon et al. work out a general behavior for dependence of the excitonic properties in layered 2D perovskites.
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Affiliation(s)
- J-C Blancon
- Los Alamos National Laboratory, Los Alamos, NM, 87545, USA.
| | - A V Stier
- Los Alamos National Laboratory, Los Alamos, NM, 87545, USA
| | - H Tsai
- Los Alamos National Laboratory, Los Alamos, NM, 87545, USA.,Department of Materials Science and Nanoengineering, Rice University, Houston, TX, 77005, USA
| | - W Nie
- Los Alamos National Laboratory, Los Alamos, NM, 87545, USA
| | - C C Stoumpos
- Department of Chemistry, Northwestern University, Evanston, IL, 60208, USA
| | - B Traoré
- Univ Rennes, ENSCR, INSA Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes)-UMR 6226, F-35000, Rennes, France
| | - L Pedesseau
- Univ Rennes, INSA Rennes, CNRS, Institut FOTON-UMR 6082, F-35000, Rennes, France
| | - M Kepenekian
- Univ Rennes, ENSCR, INSA Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes)-UMR 6226, F-35000, Rennes, France
| | - F Katsutani
- Department of Electrical and Computer Engineering, Rice University, Houston, TX, 77005, USA
| | - G T Noe
- Department of Electrical and Computer Engineering, Rice University, Houston, TX, 77005, USA
| | - J Kono
- Department of Materials Science and Nanoengineering, Rice University, Houston, TX, 77005, USA.,Department of Electrical and Computer Engineering, Rice University, Houston, TX, 77005, USA.,Department of Physics and Astronomy, Rice University, Houston, TX, 77005, USA
| | - S Tretiak
- Los Alamos National Laboratory, Los Alamos, NM, 87545, USA
| | - S A Crooker
- Los Alamos National Laboratory, Los Alamos, NM, 87545, USA
| | - C Katan
- Univ Rennes, ENSCR, INSA Rennes, CNRS, ISCR (Institut des Sciences Chimiques de Rennes)-UMR 6226, F-35000, Rennes, France
| | - M G Kanatzidis
- Department of Chemistry, Northwestern University, Evanston, IL, 60208, USA.,Department of Materials Science and Engineering, Northwestern University, Evanston, IL, 60208, USA
| | - J J Crochet
- Los Alamos National Laboratory, Los Alamos, NM, 87545, USA
| | - J Even
- Univ Rennes, INSA Rennes, CNRS, Institut FOTON-UMR 6082, F-35000, Rennes, France.
| | - A D Mohite
- Los Alamos National Laboratory, Los Alamos, NM, 87545, USA. .,Department of Chemical and Biomolecular Engineering, Rice University, Houston, TX, 77005, USA.
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Liu N, Tsai H, Lee J, Kuo T, Yang C. 0453 The Effects Of Ambient Temperature Changes On The Severity Of Obstructive Sleep Apnea And Autonomic Nervous System Among Adult Patients. Sleep 2018. [DOI: 10.1093/sleep/zsy061.452] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- N Liu
- National Yang-Ming University, Taipei, TAIWAN
- Sleep Research Center, National Yang-Ming University, Taipei, TAIWAN
| | - H Tsai
- National Yang-Ming University, Taipei, TAIWAN
- Sleep Research Center, National Yang-Ming University, Taipei, TAIWAN
| | - J Lee
- Cheng Hsin General Hospital, Taipei, TAIWAN
| | - T Kuo
- National Yang-Ming University, Taipei, TAIWAN
- Sleep Research Center, National Yang-Ming University, Taipei, TAIWAN
- Brain Research Center, National Yang-Ming University, Taipei, TAIWAN
| | - C Yang
- National Yang-Ming University, Taipei, TAIWAN
- Sleep Research Center, National Yang-Ming University, Taipei, TAIWAN
- Brain Research Center, National Yang-Ming University, Taipei, TAIWAN
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12
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Brooks AJ, Sebastian S, Cross SS, Robinson K, Warren L, Wright A, Marsh AM, Tsai H, Majeed F, McAlindon ME, Preston C, Hamlin PJ, Lobo AJ. Outcome of elective withdrawal of anti-tumour necrosis factor-α therapy in patients with Crohn's disease in established remission. J Crohns Colitis 2017; 11:1456-1462. [PMID: 25311864 DOI: 10.1016/j.crohns.2014.09.007] [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] [Indexed: 01/05/2023]
Abstract
BACKGROUND AND AIMS Outcomes of cessation of anti-TNF therapy for Crohn's disease (CD) in clinical and/or endoscopic remission in routine clinical practice is uncertain. This study aimed to evaluate clinical outcomes and factors associated with relapse in CD patients following formal disease assessment and elective anti-TNF withdrawal. METHODS Prospective observational study of CD patients in whom anti-TNF therapy was stopped electively after ≥12months and follow-up of ≥6months. Investigations at assessment prior to cessation included ≥1 of clinical assessment, endoscopic and/or imaging. Relapse was defined as recurrent symptoms of CD requiring medical or surgical therapy. RESULTS Eighty-six patients received anti-TNF for a median duration of 23 (12-80) months for severe active luminal (70%), fistulating perianal (25.5%) and other fistulating disease (4.5%). Relapse rates at 90,180 and 365days were 4.7%, 18.6% and 36%, respectively. If anti-TNF dose escalation occurred 6months prior to withdrawal, 88% (7/8) relapsed. Based on multivariate analysis, risk factors for relapse include ileocolonic disease at diagnosis and previous anti-TNF therapy. An elevated faecal calprotectin (FC) is likely to predict relapse (p=0.02), with a PPV of 66.7% at >50μg/g. Of 36 patients who relapsed, 31 were retreated with anti-TNF, with an overall recapture rate of 93%. CONCLUSION Relapse rates at 1year following elective withdrawal of anti-TNF are 36%, with high retreatment response rate. Predictors of relapse include ileocolonic involvement, previous anti-TNF therapy and raised FC. Endoscopic/radiologic assessment prior to cessation of therapy does not appear to predict those at lower risk of relapse.
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Affiliation(s)
- A J Brooks
- Gastroenterology and Liver Unit, Royal Hallamshire Hospital, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, S10 2JF, UK Gastroenterology and Liver Unit Royal Hallamshire Hospital Sheffield Teaching Hospitals NHS Foundation Trust Sheffield S10 2JF UK
| | - S Sebastian
- Department of Gastroenterology, Hull & East Yorkshire NHS Trust, Castle Hill Hospital, Cottingham, HU16 5JQ, UK Department of Gastroenterology Hull & East Yorkshire NHS Trust Castle Hill Hospital Cottingham HU16 5JQ UK
| | - S S Cross
- Department of Neuroscience, Faculty of Medicine, Dentistry and Health, The University of Sheffield, Beech Hill Road, Sheffield S10 2RX, UK Department of Neuroscience Faculty of Medicine Dentistry and Health The University of Sheffield Beech Hill Road Sheffield S10 2RX UK
| | - K Robinson
- Gastroenterology and Liver Unit, Royal Hallamshire Hospital, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, S10 2JF, UK Gastroenterology and Liver Unit Royal Hallamshire Hospital Sheffield Teaching Hospitals NHS Foundation Trust Sheffield S10 2JF UK
| | - L Warren
- Department of Gastroenterology, Leeds Teaching Hospitals NHS Trust, St James's University Hospital, Beckett Street, Leeds, West Yorkshire LS9 7TF, UK Department of Gastroenterology Leeds Teaching Hospitals NHS Trust St James's University Hospital Beckett Street, Leeds West Yorkshire LS9 7TF UK
| | - A Wright
- Gastroenterology and Liver Unit, Royal Hallamshire Hospital, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, S10 2JF, UK Gastroenterology and Liver Unit Royal Hallamshire Hospital Sheffield Teaching Hospitals NHS Foundation Trust Sheffield S10 2JF UK
| | - A M Marsh
- Gastroenterology and Liver Unit, Royal Hallamshire Hospital, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, S10 2JF, UK Gastroenterology and Liver Unit Royal Hallamshire Hospital Sheffield Teaching Hospitals NHS Foundation Trust Sheffield S10 2JF UK
| | - H Tsai
- Department of Gastroenterology, Hull & East Yorkshire NHS Trust, Castle Hill Hospital, Cottingham, HU16 5JQ, UK Department of Gastroenterology Hull & East Yorkshire NHS Trust Castle Hill Hospital Cottingham HU16 5JQ UK
| | - F Majeed
- Department of Gastroenterology, Leeds Teaching Hospitals NHS Trust, St James's University Hospital, Beckett Street, Leeds, West Yorkshire LS9 7TF, UK Department of Gastroenterology Leeds Teaching Hospitals NHS Trust St James's University Hospital Beckett Street, Leeds West Yorkshire LS9 7TF UK
| | - M E McAlindon
- Gastroenterology and Liver Unit, Royal Hallamshire Hospital, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, S10 2JF, UK Gastroenterology and Liver Unit Royal Hallamshire Hospital Sheffield Teaching Hospitals NHS Foundation Trust Sheffield S10 2JF UK
| | - C Preston
- Department of Gastroenterology, Bradford Royal Infirmary, Duckworth Lane, Bradford, BD9 6RJ, UK Department of Gastroenterology Bradford Royal Infirmary Duckworth Lane Bradford BD9 6RJ UK
| | - P J Hamlin
- Department of Gastroenterology, Leeds Teaching Hospitals NHS Trust, St James's University Hospital, Beckett Street, Leeds, West Yorkshire LS9 7TF, UK Department of Gastroenterology Leeds Teaching Hospitals NHS Trust St James's University Hospital Beckett Street, Leeds West Yorkshire LS9 7TF UK
| | - A J Lobo
- Gastroenterology and Liver Unit, Royal Hallamshire Hospital, Sheffield Teaching Hospitals NHS Foundation Trust, Sheffield, S10 2JF, UK Gastroenterology and Liver Unit Royal Hallamshire Hospital Sheffield Teaching Hospitals NHS Foundation Trust Sheffield S10 2JF UK
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13
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Wan C, Chiu H, Hsieh H, Tsai H, Lin Y, Wang J. COST-EFFECTIVENESS OF MINI-LAPAROTOMY FOR COLORECTAL CANCERS IN ELDERLY PATIENTS. Innov Aging 2017. [DOI: 10.1093/geroni/igx004.3276] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Affiliation(s)
- C. Wan
- Christian Changhua Hospital, Changhua, Taiwan,
| | - H. Chiu
- Christian Changhua Hospital, Changhua, Taiwan,
- Kaohsiung Medical University, Kaohsiung, Taiwan,
| | - H. Hsieh
- Kaohsiung Medical University, Kaohsiung, Taiwan,
| | - H. Tsai
- Kaohsiung Medical University Hospital, Kaohsiung, Taiwan,
| | - Y. Lin
- National Taiwan University, Taipei, Taiwan
| | - J. Wang
- Kaohsiung Medical University, Kaohsiung, Taiwan,
- Kaohsiung Medical University Hospital, Kaohsiung, Taiwan,
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14
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Blancon JC, Tsai H, Nie W, Stoumpos CC, Pedesseau L, Katan C, Kepenekian M, Soe CMM, Appavoo K, Sfeir MY, Tretiak S, Ajayan PM, Kanatzidis MG, Even J, Crochet JJ, Mohite AD. Extremely efficient internal exciton dissociation through edge states in layered 2D perovskites. Science 2017; 355:1288-1292. [DOI: 10.1126/science.aal4211] [Citation(s) in RCA: 688] [Impact Index Per Article: 98.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/17/2016] [Accepted: 02/22/2017] [Indexed: 01/20/2023]
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15
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Tsai H, Chou K. Effectiveness of music intervention on the anxiety and salivary physiological indicators of patients with breast cancer undergoing chemotherapy. Breast 2017. [DOI: 10.1016/s0960-9776(17)30407-1] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022] Open
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16
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Feng F, Karnes J, Ashab H, Trock B, Ross A, Tsai H, Tosoian J, Erho N, Alshalafa M, Choeurng V, Yousefi K, Abdollah F, Klein E, Nguyen P, Dicker A, Den R, Davicioni E, Jenkins R, Lotan T, Schaeffer E. Development and Validation of Genomic Signature That Predicts Androgen Deprivation Therapy Treatment Failure. Int J Radiat Oncol Biol Phys 2016. [DOI: 10.1016/j.ijrobp.2016.06.1145] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
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17
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Ho T, Yeh F, Huang K, Sung S, Hsu L, Tsai H, Hsu T. Differential mechanisms of cadmium and mercury(II)-induced down-regulation of DNA mismatch binding activities in zebrafish (Danio rerio) embryos. Toxicol Lett 2016. [DOI: 10.1016/j.toxlet.2016.06.1875] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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18
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Ju N, Chen C, Gans S, Hug E, Cahlon O, Wolden S, Chon B, Yeh B, Tsai H, Sine K, Mah D. SU-F-T-208: An Efficient Planning Approach to Posterior Fossa Tumor Bed Boosts Using Proton Pencil Beam Scanning in Fixed-Beam Room. Med Phys 2016. [DOI: 10.1118/1.4956346] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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19
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Hwang Y, Lui K, Lin Y, Tsai H. SU-F-I-74: Dose Evaluation Based On Monte Carlo Simulation of Three-Dimensional Rotational Angiography During Hepatic Transarterial Chemoembolization Procedures. Med Phys 2016. [DOI: 10.1118/1.4955902] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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20
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Tang S, Song L, Chen C, Chang C, Chon B, Tsai H, Soffen E, Cahlon O, Mah D. SU-E-T-603: PBS Prostate Plan Robustness: A Tool for Patient Specific Setup Tolerance. Med Phys 2015. [DOI: 10.1118/1.4924966] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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21
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Lin Y, Hwang Y, Tsai H. SU-E-I-54: Effective Dose and Radiation Cancer Risks for Scoliosis Patients Undergoing Full Spine Radiography. Med Phys 2015. [DOI: 10.1118/1.4924051] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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22
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Chen Y, Lin Y, Chen H, Tsai H. SU-E-T-594: Out-Of-Field Neutron and Gamma Dose Estimated Using TLD-600/700 Pairs in the Wobbling Proton Therapy System. Med Phys 2015. [DOI: 10.1118/1.4924957] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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23
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Tsai H, Hwang Y, Hu Y. TU-F-CAMPUS-I-03: Preliminary Study of Size-Specific Dose Estimates in Adult Abdomenal CT Examinations in Taiwan. Med Phys 2015. [DOI: 10.1118/1.4925813] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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24
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Nie W, Tsai H, Asadpour R, Blancon JC, Neukirch AJ, Gupta G, Crochet JJ, Chhowalla M, Tretiak S, Alam MA, Wang HL, Mohite AD. High-efficiency solution-processed perovskite solar cells with millimeter-scale grains. Science 2015; 347:522-5. [DOI: 10.1126/science.aaa0472] [Citation(s) in RCA: 2667] [Impact Index Per Article: 296.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/02/2022]
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Fontanilla H, Cahlon O, Cardinale R, Chon B, Hug E, Tsai H, Anuj G. Individual Patient-Based Peer Review at a Proton Center. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.2136] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
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Cuaron J, Hug E, Chon B, Tsai H, Powell S, Cahlon O. Outcomes and Early Toxicity in Patients Treated With Proton Therapy for Breast Cancer. Int J Radiat Oncol Biol Phys 2014. [DOI: 10.1016/j.ijrobp.2014.05.798] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
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Cahlon O, Tsai H, Flannery T, Fontanilla H, Pepek J, Hug E, Chon B. Differences in Baseline Patient Characteristics in Patients Receiving Proton Beam Therapy and IMRT for Prostate Cancer. Int J Radiat Oncol Biol Phys 2013. [DOI: 10.1016/j.ijrobp.2013.06.1035] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/26/2022]
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Cahlon O, Tsai H, Chon B, Lee N, Yeh B, Hug E, Schreuder N. Feasibility of Using 3D Uniform Conformal Scanning Proton Beam Therapy for Locally-Advanced Oropharyngeal Carcinoma Requiring Bilateral Neck Irradiation. Int J Radiat Oncol Biol Phys 2013. [DOI: 10.1016/j.ijrobp.2013.06.1973] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
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29
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Jang S, Pyakuryal A, Cahlon O, Greenberg A, Tsai H, Lee S, Sio T, Hanley J. SU-E-T-595: A Study of Sequential and Simultaneously Integrated Boost IMRT Methods in Head and Neck Cancer. Med Phys 2013. [DOI: 10.1118/1.4815023] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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30
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Huang H, Tsai M, Lin Y, Chen W, Chen J, Kuo L, Hsu C, Chen B, Tsai H, Cheng F. Exercise behavior and physical activity in patients after open heart surgery. J Sci Med Sport 2012. [DOI: 10.1016/j.jsams.2012.11.404] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/01/2022]
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31
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Yang J, Jiang L, Wang S, Li B, Wang M, Xiao H, Lu Y, Tsai H. High sensitivity of taper-based Mach-Zehnder interferometer embedded in a thinned optical fiber for refractive index sensing. Appl Opt 2011; 50:5503-5507. [PMID: 22016218 DOI: 10.1364/ao.50.005503] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/31/2023]
Abstract
A taper-based Mach-Zehnder interferometer (MZI) embedded in a thinned optical fiber is demonstrated as a highly sensitive refractive index (RI) sensor. A RI sensitivity of 2210.84 nm/RIU (refractive index unit) is obtained at the external RI of 1.40, which is ten times higher than that of normal taper- and long-period fiber grating (LPFG)-based sensors. The sensitivity can be further improved by decreasing the diameter of the thinned fiber and increasing the interferometer length of the MZI. The proposed MZIs have lower temperature sensitivities compared with normal fiber sensors, which is a desirable merit for RI sensors to reduce the cross sensitivity caused by thermal drift.
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Affiliation(s)
- J Yang
- Laser Micro/Nano Fabrication Laboratory, School of Mechanical Engineering, Beijing Institute of Technology, China
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32
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Cardinale R, Flannery T, Tsai H, Cahlon O, McNeeley S, Mao L, Hanley J. Incidence and Prognostic Factors of Radiation Pneumonitis from Lung Cancer IMRT in a Community Setting. Int J Radiat Oncol Biol Phys 2011. [DOI: 10.1016/j.ijrobp.2011.06.1147] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/16/2022]
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33
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Hwang Y, Chen C, Tsai H, Chen C, Chui C, Wan Y, Liu H. SU-E-I-88: Improvement of Mammography Quality after the Enforcement of Quality Assurance in Taiwan. Med Phys 2011. [DOI: 10.1118/1.3611662] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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34
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Hwang Y, Chen C, Tsai H, Chen C, Chui C, Wan Y, Liu H. SU-E-I-93: Comparison of the AEC Thickness Tracking Using the Signal- Difference-To-Noise Ratio in 113 Flat-Panel Digital Mammography Units. Med Phys 2011. [DOI: 10.1118/1.3611667] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022] Open
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35
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Hong X, Tsai H, Wang G, Pearson C, Ortiz K, Kumar R, Bauchner H, Schleimer R, Pongracic J, Wang X. Genetic Determinants of Food Sensitization in Early Childhood: A Prospective Birth Cohort Study. J Allergy Clin Immunol 2010. [DOI: 10.1016/j.jaci.2009.12.506] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
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36
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Lin S, Tsai H, Vescovi A, Laterra J, DeWeese T, Baylin S. The Efficacy of Low Dose Epigenetic Agents in Combination with Ionizing Radiation in a Neurosphere Tumor Model of Glioblastoma Multiforme. Int J Radiat Oncol Biol Phys 2008. [DOI: 10.1016/j.ijrobp.2008.06.537] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/21/2022]
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37
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Tsai H, Kumar R, Pongracic J, Yu Y, Costello J, O'Gorman M, Wang X. Familial Aggregation of Total and Food-Specific IgE. J Allergy Clin Immunol 2007. [DOI: 10.1016/j.jaci.2006.11.422] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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38
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Nagabhushan TL, Cooper AB, Turner WN, Tsai H, McCombie S, Mallams AK, Rane D, Wright JJ, Reichert P. Interaction of vicinal and nonvicinal amino-hydroxy group pairs in aminoglycoside-aminocyclitol antibiotics with transition metal cations. Selective N protection. J Am Chem Soc 2002. [DOI: 10.1021/ja00484a081] [Citation(s) in RCA: 39] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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39
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Tsai H, Sweeney WV, Coyle CL. Transport of hydrogen ions by a 4Fe-4S model compound in a directional electron-transport system. Inorg Chem 2002. [DOI: 10.1021/ic00212a018] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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40
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41
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Seon BK, Takahashi N, Haba A, Matsuno F, Haruta Y, She XW, Harada N, Tsai H. Angiogenesis and metastasis marker of human tumors. Rinsho Byori 2001; 49:1005-13. [PMID: 11769465] [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] [Subscribe] [Scholar Register] [Indexed: 02/23/2023]
Abstract
Tumor growth and metastasis are dependent on angiogenesis. Therefore, certain angiogenesis markers may be useful as metastasis markers and/or the targets for antiangiogenic therapy. We and others have been studying endoglin(EDG; CD105) for such purposes. EDG is a proliferation-associated antigen of endothelial cells and essential for angiogenesis. In addition, EDG is a component of the transforming growth factor(TGF)-beta receptor complex. Expression of EDG is up-regulated in tumor-associated angiogenic vasculature compared with normal tissue vasculature. Microvessel density detected for EDG expression in breast cancer tissues showed a statistically significant correlation with overall and disease-free survival. In addition, elevated serum EDG was associated with metastasis in patients with colorectal, breast, and other solid tumors. On the other hand, We have been targeting EDG on tumor vasculature to suppress tumor growth and metastasis by systemic(i.v.) administration of anti-EDG monoclonal antibodies(mAbs) and immunoconjugates(IMCs). To thid end, we have been using three animal models, i.e., severe combined immunodeficient(SCID) mouse model of MCF-7 human breast cancer, human skin/SCID mouse chimera model bearing MCF-7 tumor, and syngeneic metastasis model of colon-26 adenocarcinoma cells in BALB/c mice. In addition, antiangiogenic activities of anti-EDG mAbs and IMCs were evaluated in mice using the dorsal air sac assay. The IMCs were prepared by coupling deglycosylated ricin A-chain or 125I to individual anti-EDG mAbs. These anti-EDG IMCs and mAbs showed substantial antitumor efficacy and antimetastatic activities without showing severe toxicity. Recently, we generated a recombinant human/mouse chimeric anti-EDG mAb to facilitate clinical application of the mAb.
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Affiliation(s)
- B K Seon
- Department of Immunology, Roswell Park Cancer Institute, Buffalo, New York 14263, USA
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42
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Fong JC, Kao YS, Tsai H, Ho LT. Endothelin-1 increases glucose transporter glut1 mRNA accumulation in 3T3-L1 adipocytes by a mitogen-activated protein kinase-dependent pathway. Cell Signal 2001; 13:491-7. [PMID: 11516624 DOI: 10.1016/s0898-6568(01)00174-7] [Citation(s) in RCA: 11] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
Abstract
The mechanism of enhancing glucose transport by prolonged endothelin-1 (ET-1) treatment of 3T3-L1 adipocytes was examined. Western and Northern blot analyses indicated that ET-1 increased the amount of both GLUT1 protein and mRNA. The degradation rate of GLUT1 mRNA as measured in the presence of actinomycin D, nevertheless, was not significantly altered by ET-1. Whereas various inhibitors for distinct signalling pathways were tested, only the mitogen-activated protein kinase (MAPK) kinase inhibitor, PD98059, was found to decrease significantly the enhancing effect of ET-1. Similar extent of inhibition was observed in cells pretreated with pertussis toxin (PT). Immunoblot analysis revealed that ET-1 may stimulate a transient phosphorylation of p42/p44 MAPK and both PT and PD98059 inhibited this stimulation. In addition, the effect of ET-1 on GLUT1 mRNA accumulation was inhibited by PD98059 and cycloheximide, implying that a trans-activation was involved. Taken together, these results suggest that ET-1 may induce GLUT1 gene expression by a MAPK-dependent mechanism.
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Affiliation(s)
- J C Fong
- Institute of Biochemistry, National Yang-Ming University, Taipei, Taiwan, ROC.
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Bühler L, Goepfert C, Kitamura H, Basker M, Gojo S, Alwayn IP, Chang Q, Down JD, Tsai H, Wise R, Sachs DH, Cooper DK, Robson SC, Sackstein R. Porcine hematopoietic cell xenotransplantation in nonhuman primates is complicated by thrombotic microangiopathy. Bone Marrow Transplant 2001; 27:1227-36. [PMID: 11548840 DOI: 10.1038/sj.bmt.1703067] [Citation(s) in RCA: 26] [Impact Index Per Article: 1.1] [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] [Indexed: 11/08/2022]
Abstract
Thrombotic microangiopathy (TM) is a serious complication of bone marrow transplantation (BMT) that resembles thrombotic thrombocytopenic purpura (TTP). In attempting to achieve hematopoietic cell chimerism in the pig-to-baboon model, we have observed TM following infusion of high doses (>10(10) cells/kg) of porcine peripheral blood mobilized progenitor cells (PBPC) into baboons. We performed investigations to analyze the pathobiology of this TM and to test therapeutic interventions to ameliorate it. PBPC were obtained by leukapheresis of cytokine-stimulated swine. The initial observations were made in two baboons that underwent a non-myeloablative regimen (NMR) prior to PBPC transplantation (TX) (group 1). We then studied three experimental groups. Group 2 (n = 2) received NMR without PBPC TX. Group 3 (n = 2) received PBPC TX alone. Group 4 (n = 6) received NMR + PBPC TX combined with prostacyclin, low-dose heparin, methylprednisolone, and cyclosporine was replaced by anti-CD40L mAb in five cases. Baboons in groups 1 and 3 developed severe thrombocytopenia (<10,000/mm3), intravascular hemolysis with schistocytosis (>10/high powered field (hpf)), increase in plasma lactate dehydrogenase (LDH) (2500-9000 U/l), transient neurologic changes, renal insufficiency, and purpura. Autopsy on two baboons confirmed extensive platelet thrombi in the microcirculation, and, similar to clinical BMT-associated TM/TTP, no unusually large vWF multimers or changes in vWF protease activity were observed in the plasma of baboons with TM. In group 2, self-limited thrombocytopenia occurred for 10-15 days following NMR. Group 4 baboons developed thrombocytopenia (<20,000/mm3) rarely requiring platelet transfusion, minimal schistocytosis (<3/hpf), minor increase in LDH (<1000 U/l), with no clinical sequelae. We conclude that high-dose porcine PBPC infusion into baboons induces a microangiopathic state with vWF biochemical parameters resembling clinical BMT-associated TM/TTP and that administration of antithrombotic and anti-inflammatory agents can ameliorate this complication.
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Affiliation(s)
- L Bühler
- Transplantation Biology Research Center, Massachusetts General Hospital/Harvard Medical School, Boston, USA
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Tsai H, Hardisty RE, Rhodes C, Kiernan AE, Roby P, Tymowska-Lalanne Z, Mburu P, Rastan S, Hunter AJ, Brown SD, Steel KP. The mouse slalom mutant demonstrates a role for Jagged1 in neuroepithelial patterning in the organ of Corti. Hum Mol Genet 2001; 10:507-12. [PMID: 11181574 DOI: 10.1093/hmg/10.5.507] [Citation(s) in RCA: 108] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
The Notch signalling pathway has recently been implicated in the development and patterning of the sensory epithelium in the cochlea, the organ of Corti. As part of an ongoing large-scale mutagenesis programme to identify new deaf or vestibular mouse mutants, we have identified a novel mouse mutant, slalom, which shows abnormalities in the patterning of hair cells in the organ of Corti and missing ampullae, structures that house the sensory epithelia of the semicircular canals. We show that the slalom mutant carries a mutation in the Jagged1 gene, implicating a new ligand in the signalling processes that pattern the inner ear neuro-epithelium.
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Affiliation(s)
- H Tsai
- MRC Mammalian Genetics Unit and Mouse Genome Centre, Harwell, Oxon OX11 ORD, UK
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45
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Takahashi N, Kawanishi-Tabata R, Haba A, Tabata M, Haruta Y, Tsai H, Seon BK. Association of serum endoglin with metastasis in patients with colorectal, breast, and other solid tumors, and suppressive effect of chemotherapy on the serum endoglin. Clin Cancer Res 2001; 7:524-32. [PMID: 11297243] [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: 02/19/2023]
Abstract
In this report, we present data indicating that the increased serum endoglin (EDG; CD105) quantitated by a double-antibody sandwich assay is associated with metastasis in patients with solid tumors including colorectal and breast carcinomas. In addition, we show that chemotherapy exerts a suppressive effect on the serum EDG. EDG is a proliferation-associated cell membrane antigen of human vascular endothelial cells. Furthermore, EDG is essential for angiogenesis. We generated two anti-EDG monoclonal antibodies (mAbs), termed SN6a and SN6h, defining different epitopes of EDG and developed a double-antibody sandwich assay to quantitate serum EDG in patients with solid tumors. SN6h possesses an exceedingly high antigen-binding avidity (K, 1.38 x 10(11) liters/mol), whereas SN6a possesses an ordinary avidity for a mAb directed to a cell surface antigen (K, 2.85 x 10(8) liters/mol). We measured serum samples from 101 patients with solid tumors (34 colorectal cancers, 16 breast cancers, and 51 other cancers), 8 patients with benign diseases, and 31 healthy volunteers. The serum level of EDG was significantly elevated in the patients with metastatic cancers. The mean serum EDG in the 42 metastasis-negative patients was 34.0 +/- 26.8 ng/ml (median value, 27.9 ng/ml), whereas the value in the 59 metastasis-positive patients was 63.8 +/- 72.5 ng/ml (median value, 37.2 ng/ml). The difference in EDG levels between the two groups was statistically significant (P = 0.012). Of the colorectal cancer patients, the difference in EDG levels between the 19 metastasis-negative patients and the 15 metastasis-positive patients was statistically significant (P = 0.02). In addition, the difference between the normal control (n = 31) and the 15 metastasis-positive colorectal cancer patients was statistically significant (P = 0.04). Of the breast cancer patients, the difference in EDG levels between the 11 metastasis-positive patients and the normal control was statistically significant (P < 0.005). In additional studies, we found that chemotherapy suppressed serum EDG levels in cancer patients. Of the 54 metastasis-positive patients with solid tumors, the mean serum EDG in the 32 chemotherapy-receiving [chemotherapy(+)] patients was 44.7 +/- 41.9 ng/ml (median value, 36.1 ng/ml), whereas the value in the 22 chemotherapy(-) patients was 102.4 +/- 99.5 ng/ml (median value, 64.8 ng/ml). The difference in serum EDG between the two groups is statistically significant (P < 0.005). In the majority of metastasis-positive patients who were not receiving chemotherapy, serum EDG was elevated. The results suggest that serum EDG may be a useful marker for monitoring early signs of metastasis and cancer relapse in a long-term follow-up of solid tumor patients.
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Affiliation(s)
- N Takahashi
- Department of Immunology, Roswell Park Cancer Institute, Buffalo, New York 14263, USA
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Feleppa EJ, Fair WR, Liu T, Kalisz A, Balaji KC, Porter CR, Tsai H, Reuter V, Gnadt W, Miltner MJ. Three-dimensional ultrasound analyses of the prostate. Mol Urol 2001; 4:133-9;discussion 141. [PMID: 11062367] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Grants] [Subscribe] [Scholar Register] [Indexed: 02/18/2023]
Abstract
Although conventional ultrasonography has proven to be clinically useful for depicting many types of cancerous lesions, it cannot distinguish reliably between cancerous and noncancerous tissue of the prostate. Therefore, conventional transrectal ultrasonography (TRUS) is used primarily for general evaluations of the gland and for guiding biopsies based on clearly imaged anatomic features such as the capsule, seminal vesicles, and urethra. Spectrum analysis extracts ultrasound signal parameters associated with biopsy-proven tissue types, and these parameters are then classified using neural network tools such as learning vector quantization, radial basis, and multilayer perceptron algorithms. Classification of cancerous and noncancerous prostate tissue using neural networks produces receiver operating characteristic (ROC) curves of 0.87 +/- 0.04 compared with 0.64 +/- 0.04 for conventional ultrasonography. To image the prostate using these methods, parameter values are computed at each pixel location, then translated into a score for the likelihood of cancer using a look-up table generated using the best classification algorithm. The score for cancer likelihood is expressed as a gray-scale or color value, and the resulting image may be useful to guide biopsies or therapy. Changes in parameter or score values over time potentially can be used to assess progression of disease or efficacy of therapy.
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Affiliation(s)
- E J Feleppa
- Biomedical Engineering Laboratories, Riverside Research Institute, New York, New York 10036, USA.
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Watanabe A, Fujii I, Tsai H, Chang YC, Kwon-Chung KJ, Ebizuka Y. Aspergillus fumigatus alb1 encodes naphthopyrone synthase when expressed in Aspergillus oryzae. FEMS Microbiol Lett 2000; 192:39-44. [PMID: 11040426 DOI: 10.1111/j.1574-6968.2000.tb09356.x] [Citation(s) in RCA: 78] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
Conidial pigment biosynthesis is an important virulence factor in Aspergillus fumigatus, a human fungal pathogen. Involvement of DHN-melanin pathway in the biosynthesis of A. fumigatus conidial pigment implies that the Alb1p polyketide synthase (PKS) is a 1,3,6, 8-tetrahydroxynaphthalene (T4HN) synthase. The Alb1p, however, shows higher sequence similarity to a naphthopyrone synthase than to a T4HN synthase. To clarify the function of Alb1p, the alb1 gene was overexpressed in a heterologous host Aspergillus oryzae. The Alb1p PKS product in this heterologous expression system was identified as heptaketide naphthopyrone instead of pentaketide T4HN. The data suggest that Alb1p is a naphthopyrone synthase.
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Affiliation(s)
- A Watanabe
- Graduate School of Pharmaceutical Sciences, The University of Tokyo, Hongo, Japan
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Abstract
OBJECTIVE To compare the empty zona pellucidae (ZP) of different species for use in the cryopreservation of spermatozoa. DESIGN Prospective study. SETTING An IVF unit of a medical center. PATIENT(S) Patients with azoospermia, oligoasthenozoospermia, or normal spermatozoa. INTERVENTION(S) Human and mouse ZP were prepared by evacuating the cytoplasm of oocytes or embryos. The evacuated ZP were injected with spermatozoa from patients with severe oligoasthenozoospermia and from healthy, fertile men. After the freezing and thawing procedure, the spermatozoa were aspirated outside the ZP. MAIN OUTCOME MEASURE(S) The number of spermatozoa per ZP, the number of motile sperm before freezing and after thawing, the number of sperm lost per ZP after freezing, and the sperm recovery rate were compared according to the different origins of the ZP and the sperm. RESULT(S) The number of spermatozoa, number of motile sperm before freezing and after thawing, number of sperm lost per ZP, and sperm recovery rate were comparable in all groups. The total mean number of motile sperm before freezing and after thawing, the mean number of nonmotile sperm after thawing, the mean number of sperm lost after thawing, and the sperm recovery rate were 14.5%, 11. 8%, 1.0%, 1.5%, and 82%, respectively. CONCLUSION(S) Zona pellucidae are an ideal vehicle for the cryopreservation of sperm collected by testicular sperm extraction or microsurgical epididymal sperm aspiration or from patients with severe oligoasthenozoospermia. There were no differences when human and mouse ZP were used for sperm storage.
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Affiliation(s)
- Y Hsieh
- Department of Obstetrics, China Medical College Hospital, Taichung, Taiwan
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