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Yu Z, Li H, Zhao W, Huang PS, Lin YT, Yao J, Li W, Zhao Q, Wu PC, Li B, Genevet P, Song Q, Lai P. High-security learning-based optical encryption assisted by disordered metasurface. Nat Commun 2024; 15:2607. [PMID: 38521827 PMCID: PMC10960874 DOI: 10.1038/s41467-024-46946-w] [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: 04/27/2023] [Accepted: 03/15/2024] [Indexed: 03/25/2024] Open
Abstract
Artificial intelligence has gained significant attention for exploiting optical scattering for optical encryption. Conventional scattering media are inevitably influenced by instability or perturbations, and hence unsuitable for long-term scenarios. Additionally, the plaintext can be easily compromised due to the single channel within the medium and one-to-one mapping between input and output. To mitigate these issues, a stable spin-multiplexing disordered metasurface (DM) with numerous polarized transmission channels serves as the scattering medium, and a double-secure procedure with superposition of plaintext and security key achieves two-to-one mapping between input and output. In attack analysis, when the ciphertext, security key, and incident polarization are all correct, the plaintext can be decrypted. This system demonstrates excellent decryption efficiency over extended periods in noisy environments. The DM, functioning as an ultra-stable and active speckle generator, coupled with the double-secure approach, creates a highly secure speckle-based cryptosystem with immense potentials for practical applications.
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Affiliation(s)
- Zhipeng Yu
- Department of Biomedical Engineering, Hong Kong Polytechnic University, Hong Kong SAR, China
- Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, Guangdong, China
- Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, Guangdong, China
| | - Huanhao Li
- Department of Biomedical Engineering, Hong Kong Polytechnic University, Hong Kong SAR, China
- Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, Guangdong, China
| | - Wannian Zhao
- Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, Guangdong, China
| | - Po-Sheng Huang
- Department of Photonics, National Cheng Kung University, Tainan, Taiwan
| | - Yu-Tsung Lin
- Department of Photonics, National Cheng Kung University, Tainan, Taiwan
| | - Jing Yao
- Department of Biomedical Engineering, Hong Kong Polytechnic University, Hong Kong SAR, China
- Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, Guangdong, China
| | - Wenzhao Li
- Department of Biomedical Engineering, Hong Kong Polytechnic University, Hong Kong SAR, China
- Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, Guangdong, China
| | - Qi Zhao
- Department of Biomedical Engineering, Hong Kong Polytechnic University, Hong Kong SAR, China
- Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, Guangdong, China
| | - Pin Chieh Wu
- Department of Photonics, National Cheng Kung University, Tainan, Taiwan
- Center for Quantum Frontiers of Research & Technology (QFort), National Cheng Kung University, Tainan, Taiwan
- Meta-nanoPhotonics Center, National Cheng Kung University, Tainan, Taiwan
| | - Bo Li
- Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, Guangdong, China
- Suzhou Laboratory, Suzhou, China
| | - Patrice Genevet
- Physics Department, Colorado School of Mines, Golden, CO, USA.
| | - Qinghua Song
- Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, Guangdong, China.
- Suzhou Laboratory, Suzhou, China.
| | - Puxiang Lai
- Department of Biomedical Engineering, Hong Kong Polytechnic University, Hong Kong SAR, China.
- Hong Kong Polytechnic University Shenzhen Research Institute, Shenzhen, Guangdong, China.
- Photonics Research Institute, Hong Kong Polytechnic University, Hong Kong SAR, China.
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Yang Z, Huang PS, Lin YT, Qin H, Chen J, Han S, Huang W, Deng ZL, Li B, Zúñiga-Pérez J, Genevet P, Wu PC, Song Q. Asymmetric Full-Color Vectorial Meta-holograms Empowered by Pairs of Exceptional Points. Nano Lett 2024; 24:844-851. [PMID: 38190513 DOI: 10.1021/acs.nanolett.3c03611] [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] [Indexed: 01/10/2024]
Abstract
Holography holds tremendous promise in applications such as immersive virtual reality and optical communications. With the emergence of optical metasurfaces, planar optical components that have the remarkable ability to precisely manipulate the amplitude, phase, and polarization of light on the subwavelength scale have expanded the potential applications of holography. However, the realization of metasurface-based full-color vectorial holography remains particularly challenging. Here, we report a general approach utilizing a modified Gerchberg-Saxton algorithm to achieve spatially aligned full-color display and incorporating wavelength information with an image compensation strategy. We combine the Pancharatnam-Berry phase and pairs of exceptional points to address the issue of redundant twin images that generally appear for the two orthogonal circular polarizations and to enable full polarization control of the vectorial field. Our results enable the realization of an asymmetric full-color vectorial meta-hologram, paving the way for the development of full-color display, complex beam generation, and secure data storage applications.
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Affiliation(s)
- Zijin Yang
- Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China
- School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Po-Sheng Huang
- Department of Photonics, National Cheng Kung University, Tainan 70101, Taiwan
| | - Yu-Tsung Lin
- Department of Photonics, National Cheng Kung University, Tainan 70101, Taiwan
| | - Haoye Qin
- Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China
| | - Jiaxin Chen
- Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China
- School of Materials Science and Engineering, Tsinghua University, Beijing 100084, China
| | - Sanyang Han
- Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China
| | - Wei Huang
- Key Laboratory of Multifunctional Nanomaterials and Smart Systems, Suzhou Institute of NanoTech and Nano-Bionics (SINANO), Chinese Academy of Sciences (CAS), Suzhou 215123, China
| | - Zi-Lan Deng
- Guangdong Provincial Key Laboratory of Optical Fiber Sensing and Communications, Institute of Photonics Technology, Jinan University, Guangzhou 510632, China
| | - Bo Li
- Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China
- Suzhou Laboratory, Suzhou 215123, China
| | - Jesús Zúñiga-Pérez
- Université Cote d'Azur, CNRS, CRHEA, Rue Bernard Gregory, Sophia Antipolis, 06560 Valbonne, France
- Majulab, International Research Laboratory IRL 3654, CNRS, Université Côte d'Azur, Sorbonne Université, National University of Singapore, Nanyang Technological University, Singapore 117543
- Division of Physics and Applied Physics, School of Physical and Mathematical Sciences, Nanyang Technological University, Singapore 637371
| | - Patrice Genevet
- Université Cote d'Azur, CNRS, CRHEA, Rue Bernard Gregory, Sophia Antipolis, 06560 Valbonne, France
- Physics Department, Colorado School of Mines, 1523 Illinois Street, Golden, Colorado 80401, United States
| | - Pin Chieh Wu
- Department of Photonics, National Cheng Kung University, Tainan 70101, Taiwan
- Center for Quantum Frontiers of Research & Technology (QFort), National Cheng Kung University, Tainan 70101, Taiwan
- Meta-nanoPhotonics Center, National Cheng Kung University, Tainan 70101, Taiwan
| | - Qinghua Song
- Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China
- Suzhou Laboratory, Suzhou 215123, China
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Yang Z, Huang PS, Lin YT, Qin H, Zúñiga-Pérez J, Shi Y, Wang Z, Cheng X, Tang MC, Han S, Kanté B, Li B, Wu PC, Genevet P, Song Q. Creating pairs of exceptional points for arbitrary polarization control: asymmetric vectorial wavefront modulation. Nat Commun 2024; 15:232. [PMID: 38177166 PMCID: PMC10766979 DOI: 10.1038/s41467-023-44428-z] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/07/2022] [Accepted: 12/13/2023] [Indexed: 01/06/2024] Open
Abstract
Exceptional points (EPs) can achieve intriguing asymmetric control in non-Hermitian systems due to the degeneracy of eigenstates. Here, we present a general method that extends this specific asymmetric response of EP photonic systems to address any arbitrary fully-polarized light. By rotating the meta-structures at EP, Pancharatnam-Berry (PB) phase can be exclusively encoded on one of the circular polarization-conversion channels. To address any arbitrary wavefront, we superpose the optical signals originating from two orthogonally polarized -yet degenerate- EP eigenmodes. The construction of such orthogonal EP eigenstates pairs is achieved by applying mirror-symmetry to the nanostructure geometry flipping thereby the EP eigenmode handedness from left to right circular polarization. Non-Hermitian reflective PB metasurfaces designed using such EP superposition enable arbitrary, yet unidirectional, vectorial wavefront shaping devices. Our results open new avenues for topological wave control and illustrate the capabilities of topological photonics to distinctively operate on arbitrary polarization-state with enhanced performances.
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Affiliation(s)
- Zijin Yang
- Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, China
- School of Materials Science and Engineering, Tsinghua University, Beijing, 100084, China
| | - Po-Sheng Huang
- Department of Photonics, National Cheng Kung University, Tainan, 70101, Taiwan
| | - Yu-Tsung Lin
- Department of Photonics, National Cheng Kung University, Tainan, 70101, Taiwan
| | - Haoye Qin
- Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, China
| | - Jesús Zúñiga-Pérez
- Université Cote d'Azur, CNRS, CRHEA, Rue Bernard Gregory, Sophia Antipolis, 06560, Valbonne, France
- Majulab, International Research Laboratory IRL 3654, CNRS, Université Côte d'Azur, Sorbonne Université, National University of Singapore, Nanyang Technological University, Singapore, Singapore
| | - Yuzhi Shi
- Institute of Precision Optical Engineering, School of Physics Science and Engineering, Tongji University, Shanghai, 200092, China
| | - Zhanshan Wang
- Institute of Precision Optical Engineering, School of Physics Science and Engineering, Tongji University, Shanghai, 200092, China
| | - Xinbin Cheng
- Institute of Precision Optical Engineering, School of Physics Science and Engineering, Tongji University, Shanghai, 200092, China
| | - Man-Chung Tang
- Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, China
| | - Sanyang Han
- Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, China
| | - Boubacar Kanté
- Department of Electrical Engineering and Computer Sciences, University of California, Berkeley, CA, 94720, USA
| | - Bo Li
- Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, China
- Suzhou Laboratory, Suzhou, 215123, China
| | - Pin Chieh Wu
- Department of Photonics, National Cheng Kung University, Tainan, 70101, Taiwan.
- Center for Quantum Frontiers of Research & Technology (QFort), National Cheng Kung University, Tainan, 70101, Taiwan.
- Meta-nanoPhotonics Center, National Cheng Kung University, Tainan, 70101, Taiwan.
| | - Patrice Genevet
- Université Cote d'Azur, CNRS, CRHEA, Rue Bernard Gregory, Sophia Antipolis, 06560, Valbonne, France.
- Physics Department, Colorado School of Mines, 1523 Illinois St., Golden, CO, 80401, USA.
| | - Qinghua Song
- Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen, 518055, China.
- Suzhou Laboratory, Suzhou, 215123, China.
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Hsu WL, Huang CF, Tan CC, Liu NYC, Chu CH, Huang PS, Wu PC, Yiin SJ, Tanaka T, Weng CJ, Wang CM. High-Resolution Metalens Imaging with Sequential Artificial Intelligence Models. Nano Lett 2023; 23:11614-11620. [PMID: 37937950 DOI: 10.1021/acs.nanolett.3c03416] [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] [Indexed: 11/09/2023]
Abstract
An analysis of the optical response of a GaN-based metalens was conducted alongside the utilization of two sequential artificial intelligence (AI) models in addressing the occasional issues of blurriness and color cast in captured images. The optical loss of the metalens in the blue spectral range was found to have resulted in the color cast of images. Autoencoder and CodeFormer sequential models were employed in order to correct the color cast and reconstruct image details, respectively. Said sequential models successfully addressed the color cast and reconstructed details for all of the allocated face image categories. Subsequently, the CIE 1931 chromaticity diagrams and peak signal-to-noise ratio analysis provided numerical evidence of the AI models' effectiveness in image reconstruction. Furthermore, the AI models can still repair the image without blue information. Overall, the integration of metalens and artificial intelligence models marks a breakthrough in enhancing the performance of full-color metalens-based imaging systems.
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Affiliation(s)
- Wei-Lun Hsu
- Department of Optics and Photonics, National Central University, Taoyuan, 320371, Taiwan
| | - Chen-Fu Huang
- Department of Optics and Photonics, National Central University, Taoyuan, 320371, Taiwan
| | - Chih-Chun Tan
- Department of Optics and Photonics, National Central University, Taoyuan, 320371, Taiwan
| | - Noreena Yi-Chin Liu
- Design & Creative Industries Faculty of Arts and Social Sciences, Universiti Brunei Darussalam, Gadong, BE1410, Brunei
| | - Cheng Hung Chu
- YongLin Institute of Health, National Taiwan University, Taipei, 106038 Taiwan
| | - Po-Sheng Huang
- Department of Photonics, National Cheng Kung University, Tainan, 70101 Taiwan
| | - Pin Chieh Wu
- Department of Photonics, National Cheng Kung University, Tainan, 70101 Taiwan
- Center for Quantum Frontiers of Research & Technology (QFort), National Cheng Kung University, Tainan, 70101, Taiwan
- Meta-nanoPhotonics Center, National Cheng Kung University, Tainan 70101, Taiwan
| | | | - Takuo Tanaka
- Innovative Photon Manipulation Research Team, RIKEN Center for Advanced Photonics, Saitama, 3510198, Japan
| | - Chun-Jen Weng
- Taiwan Instrument Research Institute, National Applied Research Laboratories, Hsinchu, 30076, Taiwan
| | - Chih-Ming Wang
- Department of Optics and Photonics, National Central University, Taoyuan, 320371, Taiwan
- Optical Science Center, National Central University, Taoyuan, 320371, Taiwan
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Huang PS, Chu CH, Huang SH, Su HP, Tanaka T, Wu PC. Varifocal Metalenses: Harnessing Polarization-Dependent Superposition for Continuous Focal Length Control. Nano Lett 2023; 23:10432-10440. [PMID: 37956251 DOI: 10.1021/acs.nanolett.3c03056] [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] [Indexed: 11/15/2023]
Abstract
Traditional varifocal lenses are bulky and mechanically complex. Emerging active metalenses promise compactness and design flexibility but face issues like mechanical tuning reliability and nonlinear focal length tuning due to additional medium requirements. In this work, we propose a varifocal metalens design based on superimposing light intensity distributions from two orthogonal polarization states. This approach enables continuous and precise focal length control within the visible spectrum, while maintaining relatively high focusing efficiencies (∼41% in simulation and ∼28% in measurement) and quality. In experimental validation, the metalens exhibited flexible tunability, with the focal length continuously adjustable between two spatial positions upon variation of the incident polarization angle. The MTF results showed high contrast reproduction and sharp imaging, with a Strehl ratio of >0.7 for all polarization angles. With compactness, design flexibility, and high focusing quality, the proposed varifocal metalens holds potential for diverse applications, advancing adaptive and versatile optical devices.
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Affiliation(s)
- Po-Sheng Huang
- Department of Photonics, National Cheng Kung University, Tainan 70101, Taiwan
| | - Cheng Hung Chu
- YongLin Institute of Health, National Taiwan University, Taipei 10672, Taiwan
| | - Shih-Hsiu Huang
- Department of Photonics, National Cheng Kung University, Tainan 70101, Taiwan
| | - Hsiu-Ping Su
- Department of Photonics, National Cheng Kung University, Tainan 70101, Taiwan
| | - Takuo Tanaka
- Innovative Photon Manipulation Research Team, RIKEN Center for Advanced Photonics, Saitama 351-0198, Japan
- Metamaterials Laboratory, RIKEN Cluster for Pioneering Research, Saitama 351-0198, Japan
- Institute of Post-LED Photonics, Tokushima University, 2-1 Minamijosanjima-cho, Tokushima, Tokushima 770-8506, Japan
| | - Pin Chieh Wu
- Department of Photonics, National Cheng Kung University, Tainan 70101, Taiwan
- Center for Quantum Frontiers of Research & Technology (QFort), National Cheng Kung University, Tainan 70101, Taiwan
- Meta-nanoPhotonics Center, National Cheng Kung University, Tainan 70101, Taiwan
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Huang PS, Lee WK, Liu CH. Why Do Bystanders Become Cyberbullies? The Effect of Perceived Reasonableness of Online Messages on Bystanders' Aggressive Tendency and Its Underlying Mechanism. Cyberpsychol Behav Soc Netw 2023. [PMID: 37276074 DOI: 10.1089/cyber.2022.0305] [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] [Indexed: 06/07/2023]
Abstract
The objectives of this study were to examine the influence of bystanders' perceived reasonableness of online messages on their aggressive tendency toward victims and to examine the mediating role of bystanders' attribution of responsibility to victims on their aggressive tendency toward the victims. Our study involved two parts: In Study 1, 295 Taiwanese undergraduates were recruited, and questionnaires were distributed to them to measure their perceived reasonableness of cyberbullying attacks. In Study 2, a total of 78 university students were recruited. The participants' perceived reasonableness of cyberbullying attacks was reduced through experimental manipulation. Subsequently, they were randomly assigned to a group with relatively low reasonableness or a control group. The results of both studies revealed that the participants' aggressive tendency toward the victim was influenced by their perceived reasonableness of cyberbully messages. The relation between perceived reasonableness and aggressive tendency was mediated by the participants' attribution of responsibility to the victim.
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Affiliation(s)
- Po-Sheng Huang
- Graduate Institute of Digital Learning and Education, National Taiwan University of Science and Technology, Taipei, Taiwan
| | - Wei-Kuang Lee
- Kaohsiung Municipal Gangshan Elementary School, Kaohsiung, Taiwan
| | - Cheng-Hong Liu
- Department of Educational Psychology and Counseling, National Tsing Hua University, Hsinchu, Taiwan
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Huang PS, Chung SJ, Liu CH, Chen PZ. Measuring Cognitive and Social Interactive Attributes of Digital Natives: Development and Validation of a Scale. Percept Mot Skills 2023:315125231172352. [PMID: 37137162 DOI: 10.1177/00315125231172352] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 05/05/2023]
Abstract
Scholars refer to individuals who have been immersed in digital environments and who make easy use of digital languages to interact with the world as "digital natives," and Teo proposed four attributes of digital natives to illustrate their behavioral tendencies. We aimed to expand Teo's framework and to develop and validate the Scale of Digital Native Attributes (SDNA) for measuring cognitive and social interactive attributes of digital natives. Based on pre-test results, we retained 10 attributes and 37 SDNA items, with 3-4 items in each sub-dimension. We then recruited 887 Taiwanese undergraduates as respondents and conducted confirmatory factor analysis to establish construct validity. Moreover, the SDNA correlated with several other related measurements to demonstrate satisfactory criterion-related validity. Internal consistency was evaluated by McDonald's Omega (ω) and Cronbach's α coefficient, showing satisfactory reliability. This preliminary tool is now ready for cross validation and temporal reliability testing in further research.
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Affiliation(s)
- Po-Sheng Huang
- Graduate Institute of Digital Learning and Education, National Taiwan University of Science and Technology, Taipei, Taiwan
- Institute for Research Excellence in Learning Sciences, National Taiwan Normal University, Taipei, Taiwan
| | - Shih-Jun Chung
- Graduate Institute of Digital Learning and Education, National Taiwan University of Science and Technology, Taipei, Taiwan
| | - Cheng-Hong Liu
- Department of Educational Psychology and Counseling, National Tsing Hua University, Hsinchu City, Taiwan
| | - Pei-Zhen Chen
- Department of Educational Psychology and Counseling, National Taiwan Normal University, Taipei, Taiwan
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Mee-Inta O, Hsieh CF, Chen DQ, Fan CH, Chiang YY, Liu CC, Sze CI, Gean PW, Wu PC, Yang MS, Huang PS, Chieh Wu P, Kuo YM, Huang CC. High-frequency ultrasound imaging for monitoring the function of meningeal lymphatic system in mice. Ultrasonics 2023; 131:106949. [PMID: 36773481 DOI: 10.1016/j.ultras.2023.106949] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/26/2022] [Revised: 12/30/2022] [Accepted: 02/03/2023] [Indexed: 06/18/2023]
Abstract
The meningeal lymphatic system drains the cerebrospinal fluid from the subarachnoid space to the cervical lymphatic system, primarily to the deep cervical lymph nodes. Perturbations of the meningeal lymphatic system have been linked to various neurologic disorders. A method to specifically monitor the flow of meningeal lymphatic system in real time is unavailable. In the present study, we adopted the high-frequency ultrasound (HFUS) with 1,1'diocatadecyl-3,3,3',3'-tetramethylindocarbocyanine perchlorate (DiI)-loaded microbubble and FePt@PLGA nanoparticle contrast agents to evaluate the flow of the meningeal lymphatic system in 2-month-old mice. Statistical analysis was performed to identify changes of HFUS signals among the microbubbles, FePt@PLGA nanoparticles, and saline control groups. Approximately 15 min from the start of intracerebroventricular injection of contrast agents, their signals were evident at the deep cervical lymph nodes and lasted for at least 60 min. These signals were validated on the basis of the presence of DiI and Fe signals in the deep cervical lymph nodes. Ligation of afferent lymphatic vessels to the deep cervical lymph nodes eliminated the HFUS signals. Moreover, ablation of lymphatic vessels near the confluence of sinuses decreased the HFUS signals in the deep cervical lymph nodes. Glioma-bearing mice that exhibited reduced lymphatic vessel immunostaining signals near the confluence of sinuses had lowered HFUS signals in the deep cervical lymph nodes within 60 min. The proposed method provides a minimally invasive approach to monitor the qualities of the meningeal lymphatic system in real time as well as the progression of the meningeal lymphatic system in various brain disease animal models.
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Affiliation(s)
- Onanong Mee-Inta
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Chin-Fang Hsieh
- Department of Biomedical Engineering, National Cheng Kung University, Tainan, Taiwan
| | - De-Quan Chen
- Department of Biomedical Engineering, National Cheng Kung University, Tainan, Taiwan
| | - Ching-Hsiang Fan
- Department of Biomedical Engineering, National Cheng Kung University, Tainan, Taiwan; Medical Device Innovation Center, National Cheng Kung University, Tainan, Taiwan
| | - Yu-Yi Chiang
- Department of Biomedical Engineering, National Cheng Kung University, Tainan, Taiwan
| | - Chan-Chuan Liu
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan; National Institute of Cancer Research, National Health Research Institutes, Tainan, Taiwan
| | - Chun-I Sze
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan; Department of Cell Biology and Anatomy, College of Medicine, National Cheng Kung University, Tainan, Taiwan; Department of Pathology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Po-Wu Gean
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan; Department of Pharmacology, College of Medicine, National Cheng Kung University, Tainan, Taiwan
| | - Ping-Ching Wu
- Department of Biomedical Engineering, National Cheng Kung University, Tainan, Taiwan; Medical Device Innovation Center, National Cheng Kung University, Tainan, Taiwan; Institute of Oral Medicine and Department of Stomatology, National Cheng Kung University Hospital, College of Medicine, National Cheng Kung University Tainan, Taiwan; Center of Applied Nanomedicine, National Cheng Kung University, Tainan, Taiwan
| | - Mon-Shieh Yang
- College of Science, National Cheng Kung University, Tainan, Taiwan
| | - Po-Sheng Huang
- Department of Photonics, National Cheng Kung University, Tainan, Taiwan
| | - Pin Chieh Wu
- Department of Photonics, National Cheng Kung University, Tainan, Taiwan
| | - Yu-Min Kuo
- Institute of Basic Medical Sciences, College of Medicine, National Cheng Kung University, Tainan, Taiwan; Department of Cell Biology and Anatomy, College of Medicine, National Cheng Kung University, Tainan, Taiwan.
| | - Chih-Chung Huang
- Department of Biomedical Engineering, National Cheng Kung University, Tainan, Taiwan; Medical Device Innovation Center, National Cheng Kung University, Tainan, Taiwan.
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Chau YFC, Chang HE, Huang PS, Wu PC, Lim CM, Chiang LM, Wang TJ, Chao CTC, Kao TS, Shih MH, Chiang HP. Enhanced photoluminescence and shortened lifetime of DCJTB by photoinduced metal deposition on a ferroelectric lithography substrate. Sci Rep 2022; 12:6173. [PMID: 35418622 PMCID: PMC9007977 DOI: 10.1038/s41598-022-10303-y] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2022] [Accepted: 03/30/2022] [Indexed: 11/09/2022] Open
Abstract
The photodeposition of metallic nanostructures onto ferroelectric surfaces could enable new applications based on the assembly of molecules and patterning local surface reactivity by enhancing surface field intensity. DCJTB (4-(dicyanomethylene)-2-t-butyl-6-(1,1,7,7-tetramethyljulolidyl-9-enyl)-4H-pyran) is an excellent fluorescent dye and dopant material with a high quantum efficiency used for OLED displays on the market. However, how to raise the photoluminescence (PL) and reduce the lifetime of DCJTB in a substrate remain extraordinary challenges for its application. Here, we demonstrate a tunable ferroelectric lithography plasmon-enhanced substrate to generate photo-reduced silver nanoparticles (AgNPs) and achieve enhanced PL with a shortened lifetime depending on the substrate's annealing time. The enhanced PL with shortened lifetimes can attribute to the localized electromagnetic (EM) wave produced by the nanotextured AgNPs layers' surface and gap plasmon resonances. The simulation is based on the three-dimensional finite element method to explain the mechanism of experimental results. Since the absorption increases, the remarkable enhanced PL of DCJTB can attain in the fabricated periodically proton exchanged (PPE) lithium niobate (LiNbO3) substrate. Furthermore, the proposed fabrication method demonstrates to help tune the surface EM wave distribution in the substrate, which can simultaneously achieve the significantly shortened lifetime and high PL intensity of DCJTB in the substrate. Compared with the un-annealed substrate, the PL intensity of DCJTB in the assembly metallic nanostructures is enhanced 13.70 times, and the PL's lifetime is reduced by 12.50%, respectively. Thus, the fabricated substrate can be a promising candidate, verifying chemically patterned ferroelectrics' satisfaction as a PL-active substrate.
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Affiliation(s)
- Yuan-Fong Chou Chau
- Centre for Advanced Material and Energy Sciences, Universiti Brunei Darussalam, Tungku Link, Gadong, BE1410, Brunei Darussalam
| | - Hao-En Chang
- Department of Optoelectronics and Materials Technology, National Taiwan Ocean University, Keelung, 202, Taiwan, ROC
| | - Po-Sheng Huang
- Department of Photonics, National Cheng Kung University, Tainan, 70101, Taiwan, ROC
| | - Pin Chieh Wu
- Department of Photonics, National Cheng Kung University, Tainan, 70101, Taiwan, ROC
| | - Chee Ming Lim
- Centre for Advanced Material and Energy Sciences, Universiti Brunei Darussalam, Tungku Link, Gadong, BE1410, Brunei Darussalam
| | - Li-Ming Chiang
- Department of Photonics & Institute of Electro-Optical Engineering, College of Electrical and Computer Engineering, National Chiao Tung University, Hsinchu, 300, Taiwan, ROC
| | - Tzyy-Jiann Wang
- Institute of Electro-Optical Engineering, National Taipei University of Technology, Taipei, 10608, Taiwan, ROC
| | - Chung-Ting Chou Chao
- Department of Optoelectronics and Materials Technology, National Taiwan Ocean University, Keelung, 202, Taiwan, ROC
| | - Tsung Sheng Kao
- Department of Photonics & Institute of Electro-Optical Engineering, College of Electrical and Computer Engineering, National Chiao Tung University, Hsinchu, 300, Taiwan, ROC
| | - Min-Hsiung Shih
- Research Center for Applied Sciences, Academia Sinica, Taipei, 11529, Taiwan, ROC
| | - Hai-Pang Chiang
- Department of Optoelectronics and Materials Technology, National Taiwan Ocean University, Keelung, 202, Taiwan, ROC.
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Liu CH, Huang PS, Yin XR, Chiu FC. Effects of Attribute Affirmation and Achievement Goals on High School Students' Motivation. Front Psychol 2021; 12:661668. [PMID: 34566749 PMCID: PMC8456415 DOI: 10.3389/fpsyg.2021.661668] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2021] [Accepted: 07/19/2021] [Indexed: 11/13/2022] Open
Abstract
Researchers have suggested that receiving attribute affirmation (AA) may increase the motivation of students to confront a challenge. However, we posited that to determine whether AA increases the motivation of students to confront a challenging task, we must consider dispositional achievement goals of the students. The participants were 171 junior-high-school students, randomly assigned to an AA or no affirmation condition. The results showed that AA enhanced the tendency to confront a challenging task for students who endorsed low mastery-approach goals (MAGs) and low performance-approach goals (PAGs) simultaneously (b = 0.5, p = 0.015). The effect was mainly mediated by the increasing state performance-approach goals (SPAGs) in confronting the task (indirect effect = 0.21, 95% CI = 0.04-0.49); however, being attribute-affirmed decreased the tendency to confront the challenging task for students adopting a dominant PAG orientation (b = -0.76, p = 0.049). In addition, for students adopting a dominant MAG orientation or adopting high MAGs and high PAGs simultaneously, no difference was noted in the tendency to confront the task between participants in the control and attribute-affirmed conditions.
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Affiliation(s)
- Cheng-Hong Liu
- Department of Educational Psychology and Counseling, National Tsing Hua University, Hsinchu, Taiwan
| | - Po-Sheng Huang
- Graduate Institute of Digital Learning and Education, National Taiwan University of Science and Technology, Taipei City, Taiwan
- Institute for Research Excellence in Learning Sciences, National Taiwan Normal University, Taipei City, Taiwan
| | - Xian-Rui Yin
- Department of Educational Psychology and Counseling, National Tsing Hua University, Hsinchu, Taiwan
| | - Fa-Chung Chiu
- Department of Counseling Psychology, Chinese Culture University, Taipei City, Taiwan
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Liu CM, Huang PS, Chang YC. Perspectives on the challenge and change of COVID-19 crisis on dental education. J Dent Sci 2021; 16:1039-1040. [PMID: 33903814 PMCID: PMC8059982 DOI: 10.1016/j.jds.2021.04.006] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2021] [Revised: 04/12/2021] [Indexed: 02/07/2023] Open
Affiliation(s)
- Chia-Ming Liu
- School of Dentistry, Chung Shan Medical University, Taichung, Taiwan
| | - Po-Sheng Huang
- School of Dentistry, Chung Shan Medical University, Taichung, Taiwan
| | - Yu-Chao Chang
- School of Dentistry, Chung Shan Medical University, Taichung, Taiwan.,Department of Dentistry, Chung Shan Medical University Hospital, Taichung, Taiwan
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Lin G, Li C, Li PS, Fang WZ, Xu HP, Gong YH, Zhu ZF, Hu Y, Liang WH, Chu Q, Zhong WZ, Wu L, Wang HJ, Wang ZJ, Li ZM, Lin J, Guan YF, Xia XF, Yi X, Miao Q, Wu B, Jiang K, Zheng XB, Zhu WF, Zheng XL, Huang PS, Xiao WJ, Hu D, Zhang LF, Fan XR, Mok TSK, Huang C. Genomic origin and EGFR-TKI treatments of pulmonary adenosquamous carcinoma. Ann Oncol 2020; 31:517-524. [PMID: 32151507 DOI: 10.1016/j.annonc.2020.01.014] [Citation(s) in RCA: 19] [Impact Index Per Article: 4.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/21/2019] [Revised: 01/05/2020] [Accepted: 01/15/2020] [Indexed: 12/25/2022] Open
Abstract
BACKGROUND Adenosquamous carcinoma (ASC) of the lung is a heterogeneous disease that is composed of both adenocarcinoma components (ACC) and squamous cell carcinoma components (SCCC). Their genomic profile, genetic origin, and clinical management remain controversial. PATIENTS AND METHODS Resected ASC and metastatic tumor in regional lymph nodes (LNs) were collected. The ACC and SCCC were separated by microdissection of primary tumor. The 1021 cancer-related genes were evaluated by next-generation sequencing independently in ACC and SCCC and LNs. Shared and private alterations in the two components were investigated. In addition, genomic profiles of independent cohorts of adenocarcinomas and squamous cell carcinomas were examined for comparison. We have also carried out a retrospective study of ASCs with known EGFR mutation status from 11 hospitals in China for their clinical outcomes. RESULTS The most frequent alterations in 28 surgically resected ASCs include EGFR (79%), TP53 (68%), MAP3K1 (14%) mutations, EGFR amplifications (32%), and MDM2 amplifications (18%). Twenty-seven patients (96%) had shared variations between ACC and SCCC, and pure SCCC metastases were not found in metastatic LNs among these patients. Only one patient with geographically separated ACC and SCCC had no shared mutations. Inter-component heterogeneity was a common genetic event of ACC and SCCC. The genomic profile of ASC was similar to that of 170 adenocarcinomas, but different from that of 62 squamous cell carcinomas. The incidence of EGFR mutations in the retrospective analysis of 517 ASCs was 51.8%. Among the 129 EGFR-positive patients who received EGFR-TKIs, the objective response rate was 56.6% and the median progression-free survival was 10.1 months (95% confidence interval: 9.0-11.2). CONCLUSIONS The ACC and SCCC share a monoclonal origin, a majority with genetically inter-component heterogeneity. ASC may represent a subtype of adenocarcinoma with EGFR mutation being the most common genomic anomaly and sharing similar efficacy to EGFR TKI.
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Affiliation(s)
- G Lin
- Department of Thoracic Oncology, Fujian Cancer Hospital, Fujian Medical University Cancer Hospital, Fuzhou, China
| | - C Li
- Department of Pathology, Fujian Cancer Hospital, Fujian Medical University Cancer Hospital, Fuzhou, China; Department of Pathology, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, China; Fujian Provincial Key Laboratory of Translational Cancer Medicine, Fuzhou, China
| | - P S Li
- Geneplus-Beijing, Beijing, China
| | - W Z Fang
- Department of Oncology, 900 Hospital of the Joint Logistics Team, Clinical Medical College of Fujian Medical University in 900 Hospital of the Joint Logistics Team, Fuzhou, China
| | - H P Xu
- Department of Thoracic Oncology, Fujian Cancer Hospital, Fujian Medical University Cancer Hospital, Fuzhou, China
| | - Y H Gong
- Geneplus-Beijing, Beijing, China
| | - Z F Zhu
- Department of Radiation Oncology, Fudan University Shanghai Cancer Center, Shanghai, China; Department of Oncology, Fudan University Shanghai Medical School, Shanghai, China
| | - Y Hu
- Department of Medical Oncology, Chinese PLA General Hospital/Medical School of Chinese PLA, Beijing, China
| | - W H Liang
- Department of Thoracic Oncology, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou Institute of Respiratory Disease & China State Key Laboratory of Respiratory Disease & National Clinical Research Center for Respiratory Disease, Guangzhou, China
| | - Q Chu
- Department of Oncology, Tongji Hospital of Tongji Medical College, Huazhong University of Science and Technology, Wuhan, China
| | - W Z Zhong
- Guangdong Lung Cancer Institute, Guangdong General Hospital & Guangdong Academy of Medical Sciences, Guangzhou, China
| | - L Wu
- Department of Thoracic Medical Oncology, The Affiliated Cancer Hospital of Xiangya School of Medicine, Central South University/Hunan Cancer Hospital, Changsha, China
| | - H J Wang
- Henan Cancer Hospital/Affiliated Cancer Hospital of Zhengzhou University, Zhengzhou, China
| | - Z J Wang
- State Key Laboratory of Molecular Oncology, Department of Medical Oncology, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences & Peking Union Medical College, Beijing, China
| | - Z M Li
- Shanghai Lung Cancer Center, Shanghai Chest Hospital, Shanghai Jiaotong University, Shanghai, China
| | - J Lin
- Department of Medical Oncology, The Second Affiliated Hospital of Kunming Medical University, Kunming, China
| | - Y F Guan
- Geneplus-Beijing, Beijing, China
| | - X F Xia
- Geneplus-Beijing, Beijing, China
| | - X Yi
- Geneplus-Beijing, Beijing, China
| | - Q Miao
- Department of Thoracic Oncology, Fujian Cancer Hospital, Fujian Medical University Cancer Hospital, Fuzhou, China
| | - B Wu
- Department of Thoracic Oncology, Fujian Cancer Hospital, Fujian Medical University Cancer Hospital, Fuzhou, China
| | - K Jiang
- Department of Thoracic Oncology, Fujian Cancer Hospital, Fujian Medical University Cancer Hospital, Fuzhou, China
| | - X B Zheng
- Department of Thoracic Oncology, Fujian Cancer Hospital, Fujian Medical University Cancer Hospital, Fuzhou, China
| | - W F Zhu
- Department of Pathology, Fujian Cancer Hospital, Fujian Medical University Cancer Hospital, Fuzhou, China
| | - X L Zheng
- Department of Thoracic Oncology, Fujian Cancer Hospital, Fujian Medical University Cancer Hospital, Fuzhou, China
| | - P S Huang
- Department of Pathology, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, China
| | - W J Xiao
- Department of Pathology, School of Basic Medical Sciences, Fujian Medical University, Fuzhou, China
| | - D Hu
- Department of Pathology, Fujian Cancer Hospital, Fujian Medical University Cancer Hospital, Fuzhou, China
| | - L F Zhang
- Department of Thoracic Oncology, Fujian Cancer Hospital, Fujian Medical University Cancer Hospital, Fuzhou, China
| | - X R Fan
- Department of Thoracic Oncology, Fujian Cancer Hospital, Fujian Medical University Cancer Hospital, Fuzhou, China
| | - T S K Mok
- State Key Laboratory of Translational Oncology, Department of Clinical Oncology, The Chinese University of Hong Kong, Hong Kong, China.
| | - C Huang
- Department of Thoracic Oncology, Fujian Cancer Hospital, Fujian Medical University Cancer Hospital, Fuzhou, China
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Liu CH, Huang PS, Tzeng JY. When an unfortunate individual in a social incident is cyberbullied by the public, even empathetic people can be bystanders: The role of perception of unusual behaviors. Computers in Human Behavior 2019. [DOI: 10.1016/j.chb.2018.12.006] [Citation(s) in RCA: 2] [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: 12/30/2022]
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Liu CH, Huang PS. Beneficial effects of self-affirmation on motivation and performance reduced in students hungry for others’ approval. Contemporary Educational Psychology 2019. [DOI: 10.1016/j.cedpsych.2018.10.008] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
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Liu CH, Huang PS. Contingencies of Self-Worth on Positive and Negative Events and Their Relationships to Depression. Front Psychol 2018; 9:2372. [PMID: 30559694 PMCID: PMC6286971 DOI: 10.3389/fpsyg.2018.02372] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/16/2018] [Accepted: 11/12/2018] [Indexed: 11/13/2022] Open
Abstract
Previous studies have found that the relationship between contingencies of self-worth (CSW) and depression was generally weak. We posited that this is partly because previous studies assumed CSW on positive and negative events as the same construct (one-dimensional CSW), which should be better conceptualized as two distinctive dimensions (two-dimensional CSW) in explaining depression. A total of 393 undergraduates from Taiwan completed the measures regarding one-dimensional CSW, two-dimensional CSW, and depression. After dividing CSW of seven classic domains into two dimensions of positive and negative CSW, the results of confirmatory factor analyses showed that the two-dimensional CSW model had better model fit than the one-dimensional model in all domains. Furthermore, relative to using one-dimensional CSW as a predictor of depression, the variance accounted for largely increased when positive and negative CSW entered simultaneously in the regression equation. The results suggest that CSW on positive and negative events should be seen as two dimensions and this perspective may largely increase the explanatory power of CSW in explaining mental health.
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Affiliation(s)
- Cheng-Hong Liu
- Department of Educational Psychology and Counseling, National Tsing Hua University, Hsinchu, Taiwan
| | - Po-Sheng Huang
- Graduate Institute of Digital Learning and Education, National Taiwan University of Science and Technology, Taipei, Taiwan
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Liu CH, Lee HW, Huang PS, Chen HC, Sommers S. Do incompatible arguments cause extensive processing in the evaluation of arguments? The role of congruence between argument compatibility and argument quality. Br J Psychol 2015; 107:179-98. [PMID: 25966342 DOI: 10.1111/bjop.12133] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/08/2013] [Revised: 01/14/2015] [Indexed: 11/28/2022]
Abstract
Previous studies have demonstrated that arguments incompatible with prior beliefs are subjected to more extensive refutational processing, scrutinized longer, and judged to be weaker than arguments compatible with prior beliefs. However, this study suggests whether extensive processing is implemented when evaluating arguments is not decided by argument compatibility, but by congruence between two evaluating tendencies elicited by both argument compatibility and argument quality. Consistent with this perspective, the results of two experiments show that relative to congruent arguments, participants judged arguments eliciting incongruent evaluating tendencies as less extreme in strength, spent more time, and felt more hesitant generating strength judgments for them. The results also show that it is mainly incongruent arguments, not congruent arguments, whose strength ratings were more closely associated with the perceived personal importance of the issue, which intensified the tendency to evaluate arguments depending on argument compatibility. These results suggest that it is the incongruity between argument compatibility and argument quality, and not simply the argument compatibility, that plays a more important role in activating an extensive processing in the evaluation of arguments.
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Affiliation(s)
- Cheng-Hong Liu
- Center for Teacher Education, National Tsing Hua University, Hsinchu City, Taiwan
| | - Hung-Wei Lee
- Department of Applied Psychology, Hsuan Chuang University, Hsinchu City, Taiwan
| | - Po-Sheng Huang
- Department of Applied Psychology, Hsuan Chuang University, Hsinchu City, Taiwan
| | - Hsueh-Chih Chen
- Department of Educational Psychology and Counseling, National Taiwan Normal University, Taipei City, Taiwan
| | - Scott Sommers
- English Learning Center, Ming Chuan University, Taipei City, Taiwan
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Huang PS, Chang WC, Huang SC. Müllerian adenosarcoma: a review of cases and literature. EUR J GYNAECOL ONCOL 2014; 35:617-620. [PMID: 25556263] [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: 06/04/2023]
Abstract
OBJECTIVE Mullerian adenosarcoma usually originates in the endometrium and grows as a polypoid mass in post-menopausal women presenting as abnormal vaginal bleeding. This report reviewed Miillerian adenosarcoma cases to clarify the clinical and pathologic characteristics. MATERIALS AND METHODS Fifteen cases ofMiillerian adenosarcoma in two medical centers covering a 15-year period were reviewed. Their clinical characteristics, pathologic findings, treatment, and outcomes were compared. RESULTS Of the 15 cases, three originated from the endometrium, six arose from uterine adenomyosis, three from the adnexa, and three from the cervix. There was only one post-menopausal case. One case was of breast cancer with tamoxifen (TMX) therapy. There were four Miillerian adenosarcoma with sarcomatous overgrowth (MASO) cases, three of which died within one year after surgery. Only the focal MASO case survived. CONCLUSION The rare variant of MASO is very aggressive and associated with poor prognosis.
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Affiliation(s)
- P S Huang
- Department of Obstetrics and Gynecology, Taipei Tzu Chi Hospital, Taiwan.
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Wu TS, Hsu CL, Lin HY, Huang PS. Improvement of the Miyazaki–Takaragi threshold digital signature scheme. INFORM PROCESS LETT 2003. [DOI: 10.1016/j.ipl.2003.07.006] [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: 10/27/2022]
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Huang PS, Chang CJ. Cryogen spray cooling in conjunction with pulse dye laser treatment of port wine stains of the head and neck. Chang Gung Med J 2001; 24:469-75. [PMID: 11601188] [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: 02/21/2023]
Abstract
BACKGROUND When a cryogen spurt is applied to the skin surface for an appropriately short period of time, the spatial distribution of cooling remains localized in the normal overlying epidermis, while leaving the temperature of deeper port wine stain (PWS) blood vessels unchanged. Furthermore, cooling continues after pulsed laser exposure as cryogen remaining on the surface evaporates and removes heat deposited by light absorption in epidermal melanin. The objective of this study was to evaluate the efficacy and advantages of cryogen spray cooling plus flashlamp-pumping in conjunction with dye laser treatment (CSC-LT) of PWS. METHODS From 1996 to 2000, a retrospective study was conducted on 63 patients, consisting of 43 women and 20 men, between the ages of 8 and 62 years treated with pulsed dye laser (lambda = 585 nm, tau p = 450 microseconds) over a 4-year period. The duration of cryogen spurts and the delay period between cryogen delivery and laser illumination were controlled. An infrared focal plane array thermodetector measured changes of lesion surface temperature which were recorded. The subject was asked to score discomfort during treatment using a pain scale. The primary efficacy measure was the quantitative assessment of a blanching response score. RESULTS The ambient skin surface temperature of PWS was 33.31 +/- 1.55 degrees C. The mean pain score for uncooled sites was 39.85 +/- 0.23 compared to 20.18 +/- 0.15 for cooled sites. There was a statistically significant difference in pain elimination between cooled and uncooled sites (p = 0.001). The mean blanching response score of CSC-LT was 3.70. A significant blanching response of PWS when receiving CSC-LT was noted. CONCLUSION Our clinical studies demonstrate the feasibility of selective epidermal cooling while achieving photothermolysis of blood vessels during pulsed dye laser treatment of PWS.
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Affiliation(s)
- P S Huang
- Department of Plastic and Reconstructive Surgery, Chang Gung Memorial Hospital, Taipei, Chang Gung University, Taoyuan, Taiwan, R.O.C
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Abstract
A method for precision small-angle measurement is proposed. This method is based on the total-internal-reflection effect of a light beam at a pair of glass prisms. Angular displacement of the light beam is measured when the intensity change of the reflected beam is detected as a result of the relative phase shift between the s- and the p-polarized beams. An initial phase shift between the s- and the p-polarized components is introduced to increase measurement sensitivity. For increased measurement linearity and reduced effect of laser power fluctuation on the output, a differential method is used in which the light beam is split equally into two beams, each reflected at a prism and detected by a photodiode. The output is obtained as the difference of the two detected intensities divided by their sum. A prototype device was built, which demonstrated a nonlinearity error of 1.3% in a measurement range of ?0.6 degrees or 0.4% in ?0.3 degrees . The peak-to-peak noise level was found to be at approximately 0.5 arc sec. This noise level can be reduced further and resolution increased by a reduction of the measurement range.
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Abstract
Genetic changes in cell-cycle, apoptotic, and survival pathways cause tumorigenesis, leading to significant phenotypic changes in transformed cells. These changes in the tumor environment - elevated expression of surface proteases, increased angiogenesis and glucuronidase activity - can be taken advantage of to improve the therapeutic index of existing cancer therapies. Targeting cytotoxics to tumor cells by enzymatic activation is a promising strategy for improving chemotherapeutics.
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Affiliation(s)
- P S Huang
- Dupont Pharmaceuticals Co., Department of Cancer Research, Glenolden, Pennsylvania 19036, USA
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Huang PS. Automatic gait recognition via statistical approaches for extended template features. IEEE Trans Syst Man Cybern B Cybern 2001; 31:818-824. [PMID: 18244847 DOI: 10.1109/3477.956044] [Citation(s) in RCA: 8] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/25/2023]
Abstract
A gait recognition system using extended template features is presented. A proposed statistical approach is applied for feature extraction from spatial and temporal templates. This method can be used to reduce data dimensionality and to optimize the class separability of different gait sequences simultaneously. Dimensionality reduction is achieved by template extraction followed by principal component analysis. Gait recognition is achieved in the canonical space using a measure of accumulated distance as the metric. By incorporating spatial and temporal information into an extended feature, gait recognition becomes more robust and accurate than using spatial or temporal features alone.
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Affiliation(s)
- P S Huang
- Dept. of Electr. Eng., Chung Cheng Inst. of Technol., Taoyuan
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Kane SA, Fleener CA, Zhang YS, Davis LJ, Musselman AL, Huang PS. Development of a binding assay for p53/HDM2 by using homogeneous time-resolved fluorescence. Anal Biochem 2000; 278:29-38. [PMID: 10640350 DOI: 10.1006/abio.1999.4413] [Citation(s) in RCA: 40] [Impact Index Per Article: 1.7] [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: 11/22/2022]
Abstract
The p53 tumor suppressor protein is activated and stabilized in response to DNA damage, resulting in cell cycle arrest or apoptosis. HMD2 is a negative regulator of p53. Binding of p53 by HDM2 traffics p53 from the nucleus to the cytoplasm where it is recognized and targeted for ubiquitin-mediated degradation (D. A. Freedman, L. Wu, and A. J. Levine, 1999, Cell. Mol. Life Sci. 55, 96-107). Several reports have suggested that disruption of this complex in normal cells results in p53 signaling (V. Böttger, A. Böttger, A. Sparks, W.-L. Liu, S. F. Howard, and D. P. Lane, 1997, Curr. Biol. 7, 860-869; C. Wasylyk, R. Salvi, M. Argentini, C. Dureuil, I. Delumeau, J. Abecassis, L. Debussche, and B. Wasylyk, 1999, Oncogene 18, 1921-1934). A homogeneous time-resolved fluorescence (HTRF) assay has been developed to monitor p53/HDM2 binding. This assay employs a site-specific biotinylated p53 protein, a GST-fused HDM2 protein, and two fluorophore-conjugated detection reagents, streptavidin-XL665 and europium cryptate-labeled anti-GST antibody ¿Eu(K)-anti-GST. Binding of p53 to HDM2 brings the fluorophores into close proximity, allowing fluorescence resonance energy transfer to occur. Development of this assay and comparison to a traditional ELISA are described in this report. The HTRF assay was then utilized to assess the effect of serine phosphorylation within the p53 N-terminus on HDM2 binding, and to determine the relative affinity of a p73 peptide for HDM2.
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Affiliation(s)
- S A Kane
- Department of Cancer Research, Merck Research Laboratories, West Point, Pennsylvania 19486, USA.
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Li YM, Huang PS, Pai L. Blood alcohol concentration among injured drivers in Hualien County. Kaohsiung J Med Sci 1999; 15:617-24. [PMID: 10603710] [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: 02/14/2023] Open
Abstract
Vehicle-related injuries are the major cause of death and injuries in Hualien County. Driving under the influence of alcohol plays a major role in such crashes. From December 1997 to May 1998, we determined the blood alcohol concentrations of 750 injured drivers from vehicle crashes, visiting the two emergency rooms of teaching hospitals in Hualien. The objectives of this study were to investigate the incidence of alcohol used in vehicle crashes, to identify the prevalence groups for prevention and to discuss alcohol testing at emergency services. Sixty-four percent were male; 27.5% were aborigines. The mean age was 36.5 +/- 16.5 years. About 54.1% tested positive for blood alcohol concentration (BAC), which ranged from 13 to 611 mg/dL; 38.6% had BAC levels exceeding 50 mg/dL and 21.1% exceeding 200 mg/dL. The mean BAC was 85.9 mg/dL (+/- 118.5). Middle-aged males and aborigines were more likely to drive under the influence of alcohol. We recommend blood alcohol testing to be mandatory at the emergency service and to be used as evidence for prosecution in a court of law. Preventing drunk driving through community programs is imperative, especially in the aboriginal communities.
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Affiliation(s)
- Y M Li
- Department of Family Medicine, Tzu-Chi General Hospital, Hualien, Taiwan, Republic of China
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Abstract
We propose to use thin films to provide a drastic improvement of measurement sensitivity in the recently developed small-angle measurement method, namely, angle measurement based on the internal-reflection effect. By designing the thin films (single layer or multiple layers) so that they provide an antireflection effect in the vicinity of the critical angle, we show that the sensitivity of angle measurement can be increased exponentially with the increase of the number of thin-film layers. This method provides a new means of designing angle sensors with increased sensitivities without having to increase the number of reflections and therefore the physical size and the required fabrication accuracy of the reflection prisms. We describe the design of the thin films for this particular application and the analysis of measurement sensitivity and range as determined by the material and the number of layers of the thin films. Selection of the optimal initial angle for high linearity performance is also discussed.
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Affiliation(s)
- P S Huang
- Department of Mechanical Engineering, State Uuniversity of New York at Stony Brook, Stony Brook, New York 11794-2300, USA.
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Abstract
A new method of angle measurement based on the internal reflection effect is proposed that uses a single right-angle prism. We measure the angular displacement between a laser beam and the prism by detecting the changes in reflectance as a function of the angle of incidence. We achieve high linearity of measurement by taking the inverse of reflectance as the output. The inverse of reflectance is obtained from the intensities of the reflected and the transmitted beams measured by two photodiodes. Experiments with a prototype device have demonstrated that angle measurement with a range of ?500 arc sec, a nonlinearity error of ?0.1%, and a resolution of 0.1 arc sec can be readily achieved. The measurement range can be further increased with some sacrifice of linearity.
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Abstract
Enormous progress has been made in the last several years in delineating signal transduction pathways associated with cell proliferation and apoptosis. The components of these pathways, which include both oncogenes and tumor suppressors, may provide viable targets for therapeutic intervention for the treatment of cancer and other diseases. This review highlights some of these recent biologic and pharmacologic advances, focusing on the ras pathway and on p53-dependent apoptosis.
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Affiliation(s)
- P S Huang
- Department of Cancer Research, Merck Research Laboratories, West Point, PA 19486, USA
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Huang PS, Ni J. Angle measurement based on the internal-reflection effect using elongated critical-angle prisms. Appl Opt 1996; 35:2239-2241. [PMID: 21085358 DOI: 10.1364/ao.35.002239] [Citation(s) in RCA: 22] [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: 05/30/2023]
Abstract
Elongated critical-angle prisms that provide multiple reflections have been used to increase measurement sensitivity while retaining excellent linearity in the recently developed angle-measurement method, angle measurement based on the internal-reflection effect.
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Huang PS, Ni J. Angle measurement based on the internal-reflection effect and the use of right-angle prisms. Appl Opt 1995; 34:4976-4981. [PMID: 21052341 DOI: 10.1364/ao.34.004976] [Citation(s) in RCA: 17] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 05/30/2023]
Abstract
A new development in angle measurement based on the internal-reflection effect (AMIRE) is described in which a pair of right-angle prisms is used to replace the previously used elongated critical-angle prisms, resulting in lower costs and a more compact size. Excellent linearity is achieved through careful alignment of the right-angle prisms. The measurement sensitivity and range can be selected through the use of light sources with different polarization states. Experiments with a prototype sensor demonstrated a measurement range of 1.6°, a resolution of 0.04 arcsec, and a nonlinearity error of ±0.1%. Both analytical and experimental results are presented.
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Huang PS, Davis L, Huber H, Goodhart PJ, Wegrzyn RE, Oliff A, Heimbrook DC. An SH3 domain is required for the mitogenic activity of microinjected phospholipase C-gamma 1. FEBS Lett 1995; 358:287-92. [PMID: 7843417 DOI: 10.1016/0014-5793(94)01453-8] [Citation(s) in RCA: 58] [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] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/27/2023]
Abstract
Phospholipase activity is elevated in dividing cells. In response to growth factor stimulation, phospholipase C-gamma (PLC-gamma) binds to activated tyrosine kinase receptors via SH2 binding domains, resulting in phosphorylation of PLC-gamma and activation of its enzyme activity. These observations suggest that PLC-gamma participates in the signal transduction pathway employed by growth factors to promote mitogenesis. Consistent with this hypothesis, microinjection of purified bovine PLC-gamma into quiescent fibroblasts has been previously reported to initiate a mitogenic response [Smith et al. (1989) Proc. Natl. Acad. Sci. 86, 3659]. We have reproduced this result using recombinant rat PLC-gamma protein. Surprisingly, however, a catalytically inactive mutant of PLC-gamma, H335Q, also elicited a full mitogenic response. The capacity to induce mitogenesis by microinjection of PLC-gamma was mapped to the 'Z' domain of the protein, which contains PLC-gamma's SH2 and SH3 motifs. Inactivation of the phosphorylated tyrosine binding properties of both SH2 domains had no effect on the mitogenic activity of the Z-domain peptide. However, deletion of the SH3 domain resulted in a complete loss of activity. These results suggest that PLC-gamma's mitogenic properties do not require the enzyme's phospholipase activity, but are instead mediated by a novel pathway for mitogenic stimulation which is dependent upon an intact SH3 domain.
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Affiliation(s)
- P S Huang
- Department of Cancer Research, Merck Research Laboratories, West Point, PA 19486
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Huber HE, Goodhart PJ, Huang PS. Retinoblastoma protein reverses DNA bending by transcription factor E2F. J Biol Chem 1994; 269:6999-7005. [PMID: 8120063] [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: 01/28/2023] Open
Abstract
E2F is a mammalian transcription factor involved in cell cycle regulation. The retinoblastoma gene product, pRB, binds to E2F in a cell cycle-dependent manner and appears to turn E2F from a transcriptional activator into a repressor. We show here that in vitro binding of pRB has three major effects on the DNA binding properties of E2F affinity-purified from HeLa cells; pRB binding increases the half-life of E2F.DNA complexes 10-15-fold, it reduces E2F specific DNA binding in the presence of nonspecific DNA by sequestering E2F, and it partially reverses the DNA bending induced by E2F. Upon specific DNA binding, E2F induces a DNA bend with a flexure angle of 125 degrees. Both full-length pRB105 and the N-terminally truncated pRB60 bind to the E2F.DNA complex with a Kd,app of 150 pM and reduce the apparent DNA bending to less than 80 degrees. DNA footprinting analysis indicates that the nonspecific DNA binding activity of pRB is not involved in this effect. Our biochemical data suggest that transcriptional activation by E2F may involve DNA bending and that the reversal of bending upon binding of pRB may turn E2F into a repressor.
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Affiliation(s)
- H E Huber
- Department of Cancer Research, Merck Research Laboratories, West Point, Pennsylvania 19486
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Huber HE, Edwards G, Goodhart PJ, Patrick DR, Huang PS, Ivey-Hoyle M, Barnett SF, Oliff A, Heimbrook DC. Transcription factor E2F binds DNA as a heterodimer. Proc Natl Acad Sci U S A 1993; 90:3525-9. [PMID: 8475102 PMCID: PMC46333 DOI: 10.1073/pnas.90.8.3525] [Citation(s) in RCA: 100] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/31/2023] Open
Abstract
E2F is a mammalian transcription factor that appears to play an important role in cell cycle control. DNA affinity column-purified E2F from HeLa cells reproducibly exhibits multiple protein bands when analyzed by SDS/PAGE. After electrophoretic purification, electroelution, and refolding of the individual protein components, the E2F DNA binding activity of the individual proteins was poor. However, upon mixing the individual components together, a dramatic (100- to 1000-fold) increase in specific DNA binding activity was observed. The five protein bands isolated can be separated into two groups based on apparent molecular mass. Optimal reconstitution of activity requires one of the two proteins found in the group of larger molecular mass (approximately 60 kDa) and one of the three proteins in the smaller-sized group (approximately 50 kDa). The reconstituted heterodimer is identical to authentic affinity-purified E2F by three criteria: DNA-binding specificity, DNA pattern, and binding to the retinoblastoma gene product. A recently cloned protein with E2F-like activity, RBP3/E2F-1, is related to the protein components of the group of larger molecular mass, as determined by Western blot analysis and reconstitution experiments. These data suggest that E2F, like many other transcription factors, binds DNA as an oligomeric complex composed of at least two distinct proteins.
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Affiliation(s)
- H E Huber
- Department of Cancer Research, Merck Research Laboratories, West Point, PA 19486
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Huang PS, Patrick DR, Edwards G, Goodhart PJ, Huber HE, Miles L, Garsky VM, Oliff A, Heimbrook DC. Protein domains governing interactions between E2F, the retinoblastoma gene product, and human papillomavirus type 16 E7 protein. Mol Cell Biol 1993; 13:953-60. [PMID: 7678696 PMCID: PMC358979 DOI: 10.1128/mcb.13.2.953-960.1993] [Citation(s) in RCA: 55] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/26/2023] Open
Abstract
Human papillomaviruses (HPVs) are the etiological agents for genital warts and contribute to the development of cervical cancer in humans. The HPV E7 gene product is expressed in these diseases, and the E7 genes from HPV types 16 and 18 contribute to transformation in mammalian cells. Mutation and deletion analysis of this gene suggests that the transforming activity of the protein product resides in the same domain as that which is directly involved in complex formation with the retinoblastoma gene product (pRB). This domain is one of two conserved regions (designated CRI and CRII) shared by E7 and other viral oncoproteins which bind pRB, including adenovirus E1A protein. Binding of HPV type 16 E7 protein to pRB has previously been shown to affect pRB's ability to bind DNA and to form complexes with other cellular proteins. In the current study, we map the functional interaction between E7 protein and pRB by monitoring the association between a 60-kDa version of the pRB, pRB60, and the cellular transcription factor E2F. We observe that CRII of E7 (amino acids 20 to 29), which completely blocks binding of full-length E7 protein, is necessary but not sufficient to inhibit E2F/pRB60 complex formation. While CRI of E1A (amino acids 37 to 55) appears to be sufficient to compete with E2F for binding to pRB60, the equivalent region of E7 is neither necessary nor sufficient. Only E7 fragments that contained both CRII and at least a portion of the zinc-binding domain (amino acids 60 to 98) inhibited E2F/pRB60 complex formation. These results suggest that pRB60 associates with E7 and E2F through overlapping but distinct domains.
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Affiliation(s)
- P S Huang
- Department of Cancer Research, Merck Research Laboratories, West Point, Pennsylvania 19486
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Abstract
We describe a new method of angle measurement that is based on the internal-reflection effect at an air-glass boundary. The method uses a differential detection scheme to largely reduce the inherent nonlinearity of the reflectance versus the angle of incidence in internal reflection. With nonlinearity reduced, the displacement of the angle of incidence can be determined accurately by measuring the reflectance. The resolution and measurement range are determined by the initial angle of incidence, the polarization state of the light, and the number of reflections. Compared with interferometers and autocollimators, this method has the advantage of a simple sensor design for applications ranging from a wide measurement range to extremely high resolution. Other advantages are compact size, simple structure, and low cost. A theoretical analysis of the method and some experimental results of a prototype sensor are presented. The possible applications of the method are also discussed.
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Abstract
A 50-year-old man, transferred from another hospital, was admitted because of adult onset seizures. Nine months earlier, he had undergone an esophagogastrectomy; the lesion was confirmed to be a carcinoid tumor. Laboratory tests, chest x-rays, and electrocardiogram were normal. A second liver and spleen scan was performed. A computed tomographic scan revealed a well-circumscribed homogeneous enhancement of a lesion in the left frontal superficial area. On the 10th day, the patient underwent a left frontal parietal craniotomy. Postoperatively, he manifested no residual neurological deficits and was discharged on the 6th postoperative day. A week later, he was readmitted for treatment of aphasia and right hemiparesis; he was treated and discharged. The patient survived 16 more months. The occurrence of central nervous system metastasis from carcinoid tumor is rare. This tumor resembled, in many respects, a parasagittal meningioma. Radiological findings on the computed tomographic scan were typical of these tumors. This patient was diagnosed as having metastatic disease just 9 months after the diagnosis of the primary tumor and 13 months from the onset of any symptoms. This is a short period of time compared with that reported in other cases.
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Affiliation(s)
- P S Huang
- Department of Surgery, Medical Center of Delaware, Newark
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Defeo-Jones D, Huang PS, Jones RE, Haskell KM, Vuocolo GA, Hanobik MG, Huber HE, Oliff A. Cloning of cDNAs for cellular proteins that bind to the retinoblastoma gene product. Nature 1991; 352:251-4. [PMID: 1857421 DOI: 10.1038/352251a0] [Citation(s) in RCA: 285] [Impact Index Per Article: 8.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/29/2022]
Abstract
The E7 transforming protein of human papilloma virus-16 binds to the retinoblastoma gene product (pRb) through a nine-amino-acid segment of E7 (21-29). This segment of E7 is homologous to the pRb-binding domains of the simian virus 40 large T and adenovirus E1A transforming proteins. Each of these viral transforming proteins bind to the same region of pRb. To isolate cellular proteins that interact with this viral protein-binding domain on pRb, we used recombinant pRb to screen a human complementary DNA expression library. Two cDNAs were isolated that encode retinoblastoma binding proteins (RBP-1 and RBP-2). We report here that these RBP genes exist in separate loci and produce discrete messenger RNAs. The predicted amino-acid sequence of these genes showed no homology to known proteins, but both RBPs contain the pRb binding motif conserved between E7, large T and E1A14. In vitro expression of the RBP cDNAs yielded proteins that specifically bound to pRb. Recombinant E7 protein, the E7 21-29 peptide and the homologous RBP-1 peptide inhibited RBP-pRb binding. Mutations introduced into the putative pRb-binding segment in RBP-1 impaired its binding activity. These studies indicate that the cellular RBP-1, RBP-2 and viral E7 proteins interact with pRb through similar domains.
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Affiliation(s)
- D Defeo-Jones
- Department of Cancer Research, Merck Sharp and Dohme Research Laboratories, West Point, Pennsylvania 19486
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Abstract
There have been numerous reported cases of diffuse intravascular coagulation (DIC) or defibrination syndrome associated with head trauma, but very few reported cases associated with primary brain tumor. This report concerns the findings in a case of DIC associated with brain tumor surgery in an infant. The patient died 2 days after surgery from acute renal and respiratory failure as a result of postoperative DIC. Therapy for DIC is controversial and shows mixed results.
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Affiliation(s)
- P S Huang
- Department of Surgery, Medical Center of Delaware, Newark
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Diekmann-Guiroy B, Huang PS. Klippel-Feil syndrome in association with a craniocervical dermoid cyst presenting as aseptic meningitis in an adult: case report. Neurosurgery 1989; 25:652-5. [PMID: 2677824 DOI: 10.1097/00006123-198910000-00025] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/02/2023] Open
Abstract
Intracranial tumors associated with Klippel-Feil syndrome usually occur in children, with spinal tumors being more common in adults affected by the syndrome. A rare case of a dermoid cyst at the craniocervical junction presenting as aseptic meningitis in an adult with Klippel-Feil syndrome is described. A review of the literature on tumors associated with this syndrome is also presented.
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Huang PS. Cerebral vascular disease: update. Del Med J 1987; 59:13-6. [PMID: 3545922] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/06/2023]
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Zrebeet HA, Huang PS. Prophylactic antibiotics in the treatment of fractures at the base of the skull. Del Med J 1986; 58:741-8. [PMID: 3792591] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/07/2023]
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Huang PS, Shen YY. [Immunohistochemical observation on macrophage in nasopharyngeal carcinoma tissues]. Zhonghua Bing Li Xue Za Zhi 1986; 15:187-9. [PMID: 2953455] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
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Huang PS, Shen YY. [Immunohistochemical and cytochemical analysis of lymphocytes and plasma cells in nasopharyngeal carcinoma]. Zhonghua Zhong Liu Za Zhi 1986; 8:187-9. [PMID: 3017661] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
Cytoplasmic IgA+, IgG+ and IgM+ in plasma cells, present in biopsy tissue of 68 patients with nasopharyngeal carcinoma (NPC) and 40 patients with chronic nasopharyngitis (CN), were studied by immunoperoxidase (PAP) technique. EB virus VCA-IgA serum antibody in all these patients was determined. At the same time, the activity of T lymphocytes of 41 patients (23 with NPC and 18 with CN) was investigated by alpha-naphthyl acetate esterase (ANAE) method. The number of T lymphocytes in NPC was far less than that in CN. This suggests that the impediment or deficiency in cellular immunity may promote the development and growth of tumor. The number of IgA+ plasma cells in NPC was obviously more than that in CN. As the increase in the level of VCA-IgA serum antibody in NPC patients corresponded to the increase in the number of IgA+ plasma cells in the tumor tissue, it was presumed that part of the IgA+ plasma cells might participate in the production and introduction of VCA-IgA antibody. We suggest that the examination of VCA-IgA serum antibody be a reliable screening test for NPC. No significant difference was found in the numbers of IgG+ plasma cells between NPC and CN. IgM+ plasma cells were rare in both.
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Huang PS, Fink AJ. Intracerebral arteriovenous fistula with associated brain abscess. Del Med J 1983; 55:649-52. [PMID: 6653843] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 01/21/2023]
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Abstract
To study the effect of lung expansion at birth on surfactant secretion, we delivered by hysterotomy 11 litters of rabbit pups at 30 days of gestation and divided them into three groups that were killed: 1) after 30 min air-breathing, 2) after 30 min nitrogen-breathing, and 3) after 30 min tracheal occlusion. Each group was compared to a littermate group killed at birth. Groups 2) and 3) continued respiratory efforts for 30 min despite progressive asphyxia. Six additional litters were pretreated with atropine; at delivery one-half of each litter was killed, the remaining pups were subjected to 30 min of hypoxic gas breathing. After sacrifice, alveolar surfactant was recovered by saline lavage and estimated quantitatively on a surface-tension balance. Surfactant concentration at birth was 1.40 +/- 0.22 mg/g dry lung and increased to 1.86 +/- 0.19 (+/- SEM) after 30 min air-breathing (P less than 0.01). Also, surfactant was increased in the nitrogen-breathing pups (from 1.61 +/- 0.35 in littermate controls to 2.41 +/- 0.58; P less than 0.03), but not to a significant degree in the occluded group (1.34 +/- 0.33 vs. 1.41 +/- 0.28), or the atropine pretreated breathing pups (1.77 +/- 0.29 vs. 1.89 +/- 0.25).
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Abstract
A case of intermittent erection in a patient with spinal canal stenosis is reported. The symptoms disappeared after lumbar laminectomy. The mechanism of erection remains speculative.
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Huang PS, Laha RK. Ankylosing hyperostosis of the cervical spine. Surg Neurol 1978; 9:273-4. [PMID: 675483] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 12/23/2022]
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