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Chen Y, Dun Y, Yu Y, Ren X, An Y, Ma Y, Hou Z, Sun X, Lu B. Preoperative diagnostic value of coronary CT angiography in acute Stanford type A aortic dissection involving the coronary arteries. Clin Radiol 2024; 79:e57-e64. [PMID: 37880031 DOI: 10.1016/j.crad.2023.08.030] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/18/2022] [Revised: 04/20/2023] [Accepted: 08/26/2023] [Indexed: 10/27/2023]
Abstract
AIM To assess the diagnostic value of coronary computed tomography angiography (CCTA) in acute type A aortic dissection (ATAAD) with coronary artery involvement and to evaluate whether CCTA could provide potentially useful information for selecting the surgical method. MATERIALS AND METHODS Patients with ATAAD treated from January 2019 to December 2020 were reviewed retrospectively. Involvement of the coronary arteries based on CCTA findings were grouped into three major types and five subtypes. Interobserver and intraobserver diagnostic agreement for five subtypes were determined. The patients were divided into the coronary artery bypass grafting (CABG) and non-CABG groups, and the proportions of the five subtypes between the two groups were compared. RESULTS A total of 95 patients were enrolled in this study. Interobserver and intraobserver diagnostic agreement were both substantial in the left and right coronary arteries. Overall, the proportions of the five subtypes of coronary artery involvement were significantly different between the two groups (p<0.001). The proportion of Type A was elevated in the non-CABG group compared with the CABG group (22.6% versus 71.9%); by contrast, the proportions of Type B1 (35.5% versus 14.1%), Type B2 (19.4% versus 10.9%), Type C1 (6.5% versus 0%), and Type C2 (16.1% versus 3.1%) were elevated in the CABG group. CONCLUSION CCTA is reliable in evaluating coronary artery involvement by ATAAD. The present retrospective study indicated that CABG may be considered if the intimal flap disrupts the coronary orifice and causes luminal stenosis >50%, particularly Type B, or if an intimal tear occurs in the coronary orifice (Type C), which deserve further validation through prospective studies.
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Affiliation(s)
- Y Chen
- Department of Radiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Y Dun
- Department of Cardiovascular Surgery, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Y Yu
- Department of Radiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - X Ren
- Department of Radiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Y An
- Department of Radiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Y Ma
- Department of Radiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - Z Hou
- Department of Radiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China
| | - X Sun
- Department of Cardiovascular Surgery, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
| | - B Lu
- Department of Radiology, Fuwai Hospital, National Center for Cardiovascular Diseases, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China.
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Wang X, Wu K, Wang C, Li Q, Hou Z, Xiao D, Wu X. Research on the Mass Adding and Removing Combined Mechanical Trimming Method of the Ring MEMS Gyroscope. Micromachines (Basel) 2023; 14:1957. [PMID: 37893394 PMCID: PMC10609602 DOI: 10.3390/mi14101957] [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] [Subscribe] [Scholar Register] [Received: 09/28/2023] [Revised: 10/13/2023] [Accepted: 10/14/2023] [Indexed: 10/29/2023]
Abstract
The MEMS gyroscope is one of the basic units of inertial navigation, whose performance and accuracy is noteworthy. Because of the limitations of processing technology and other factors, the relative manufacturing error of MEMS gyroscopes is usually large. Errors directly lead to a frequency mismatch of resonant structures and consequently restrict the performance improvement of the gyroscope. This study proposes a mechanical trimming technique combining the addition and removal of gold in a ring MEMS gyroscope. Firstly, the analysis of the gyroscope dynamics and error model and trimming theory provides theoretical guidance for the trimming process. Secondly, the method of adjusting the mass is investigated, and the ablation threshold of femtosecond laser parameters on gold is analyzed, which provides the process with parameters for the trimming experiment. Finally, the frequency trimming process is conducted in three steps, including the addition of gold spheres and the removal of gold spheres and gold film, which are applicable to the trimming process at different rates of frequency split. The results shows that the proposed method can reduce the frequency split of the gyroscope from 4.36 to 0.017 Hz.
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Affiliation(s)
- Xinyu Wang
- College of Intelligence Science and Technology, National University of Defense Technology, Changsha 410073, China; (X.W.); (K.W.); (C.W.); (Z.H.); (D.X.); (X.W.)
| | - Kai Wu
- College of Intelligence Science and Technology, National University of Defense Technology, Changsha 410073, China; (X.W.); (K.W.); (C.W.); (Z.H.); (D.X.); (X.W.)
| | - Chengxiang Wang
- College of Intelligence Science and Technology, National University of Defense Technology, Changsha 410073, China; (X.W.); (K.W.); (C.W.); (Z.H.); (D.X.); (X.W.)
| | - Qingsong Li
- College of Intelligence Science and Technology, National University of Defense Technology, Changsha 410073, China; (X.W.); (K.W.); (C.W.); (Z.H.); (D.X.); (X.W.)
| | - Zhanqiang Hou
- College of Intelligence Science and Technology, National University of Defense Technology, Changsha 410073, China; (X.W.); (K.W.); (C.W.); (Z.H.); (D.X.); (X.W.)
| | - Dingbang Xiao
- College of Intelligence Science and Technology, National University of Defense Technology, Changsha 410073, China; (X.W.); (K.W.); (C.W.); (Z.H.); (D.X.); (X.W.)
- Hunan MEMS Research Center, Changsha 410073, China
| | - Xuezhong Wu
- College of Intelligence Science and Technology, National University of Defense Technology, Changsha 410073, China; (X.W.); (K.W.); (C.W.); (Z.H.); (D.X.); (X.W.)
- Hunan MEMS Research Center, Changsha 410073, China
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Nagy L, Vonk P, Künzler M, Földi C, Virágh M, Ohm R, Hennicke F, Bálint B, Csernetics Á, Hegedüs B, Hou Z, Liu X, Nan S, Pareek M, Sahu N, Szathmári B, Varga T, Wu H, Yang X, Merényi Z. Lessons on fruiting body morphogenesis from genomes and transcriptomes of Agaricomycetes. Stud Mycol 2023; 104:1-85. [PMID: 37351542 PMCID: PMC10282164 DOI: 10.3114/sim.2022.104.01] [Citation(s) in RCA: 7] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/10/2021] [Accepted: 12/02/2022] [Indexed: 01/09/2024] Open
Abstract
Fruiting bodies (sporocarps, sporophores or basidiomata) of mushroom-forming fungi (Agaricomycetes) are among the most complex structures produced by fungi. Unlike vegetative hyphae, fruiting bodies grow determinately and follow a genetically encoded developmental program that orchestrates their growth, tissue differentiation and sexual sporulation. In spite of more than a century of research, our understanding of the molecular details of fruiting body morphogenesis is still limited and a general synthesis on the genetics of this complex process is lacking. In this paper, we aim at a comprehensive identification of conserved genes related to fruiting body morphogenesis and distil novel functional hypotheses for functionally poorly characterised ones. As a result of this analysis, we report 921 conserved developmentally expressed gene families, only a few dozens of which have previously been reported to be involved in fruiting body development. Based on literature data, conserved expression patterns and functional annotations, we provide hypotheses on the potential role of these gene families in fruiting body development, yielding the most complete description of molecular processes in fruiting body morphogenesis to date. We discuss genes related to the initiation of fruiting, differentiation, growth, cell surface and cell wall, defence, transcriptional regulation as well as signal transduction. Based on these data we derive a general model of fruiting body development, which includes an early, proliferative phase that is mostly concerned with laying out the mushroom body plan (via cell division and differentiation), and a second phase of growth via cell expansion as well as meiotic events and sporulation. Altogether, our discussions cover 1 480 genes of Coprinopsis cinerea, and their orthologs in Agaricus bisporus, Cyclocybe aegerita, Armillaria ostoyae, Auriculariopsis ampla, Laccaria bicolor, Lentinula edodes, Lentinus tigrinus, Mycena kentingensis, Phanerochaete chrysosporium, Pleurotus ostreatus, and Schizophyllum commune, providing functional hypotheses for ~10 % of genes in the genomes of these species. Although experimental evidence for the role of these genes will need to be established in the future, our data provide a roadmap for guiding functional analyses of fruiting related genes in the Agaricomycetes. We anticipate that the gene compendium presented here, combined with developments in functional genomics approaches will contribute to uncovering the genetic bases of one of the most spectacular multicellular developmental processes in fungi. Citation: Nagy LG, Vonk PJ, Künzler M, Földi C, Virágh M, Ohm RA, Hennicke F, Bálint B, Csernetics Á, Hegedüs B, Hou Z, Liu XB, Nan S, M. Pareek M, Sahu N, Szathmári B, Varga T, Wu W, Yang X, Merényi Z (2023). Lessons on fruiting body morphogenesis from genomes and transcriptomes of Agaricomycetes. Studies in Mycology 104: 1-85. doi: 10.3114/sim.2022.104.01.
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Affiliation(s)
- L.G. Nagy
- Synthetic and Systems Biology Unit, Biological Research Center, Szeged, 6726, Hungary;
| | - P.J. Vonk
- Microbiology, Department of Biology, Faculty of Science, Utrecht University, Padualaan 8, 3584 CH, Utrecht, The Netherlands;
| | - M. Künzler
- Institute of Microbiology, Department of Biology, Eidgenössische Technische Hochschule (ETH) Zürich, Zürich, Switzerland;
| | - C. Földi
- Synthetic and Systems Biology Unit, Biological Research Center, Szeged, 6726, Hungary;
| | - M. Virágh
- Synthetic and Systems Biology Unit, Biological Research Center, Szeged, 6726, Hungary;
| | - R.A. Ohm
- Microbiology, Department of Biology, Faculty of Science, Utrecht University, Padualaan 8, 3584 CH, Utrecht, The Netherlands;
| | - F. Hennicke
- Project Group Genetics and Genomics of Fungi, Chair Evolution of Plants and Fungi, Ruhr-University Bochum, 44780, Bochum, North Rhine-Westphalia, Germany;
| | - B. Bálint
- Synthetic and Systems Biology Unit, Biological Research Center, Szeged, 6726, Hungary;
| | - Á. Csernetics
- Synthetic and Systems Biology Unit, Biological Research Center, Szeged, 6726, Hungary;
| | - B. Hegedüs
- Synthetic and Systems Biology Unit, Biological Research Center, Szeged, 6726, Hungary;
| | - Z. Hou
- Synthetic and Systems Biology Unit, Biological Research Center, Szeged, 6726, Hungary;
| | - X.B. Liu
- Synthetic and Systems Biology Unit, Biological Research Center, Szeged, 6726, Hungary;
| | - S. Nan
- Institute of Applied Mycology, Huazhong Agricultural University, 430070 Hubei Province, PR China
| | - M. Pareek
- Synthetic and Systems Biology Unit, Biological Research Center, Szeged, 6726, Hungary;
| | - N. Sahu
- Synthetic and Systems Biology Unit, Biological Research Center, Szeged, 6726, Hungary;
| | - B. Szathmári
- Synthetic and Systems Biology Unit, Biological Research Center, Szeged, 6726, Hungary;
| | - T. Varga
- Synthetic and Systems Biology Unit, Biological Research Center, Szeged, 6726, Hungary;
| | - H. Wu
- Synthetic and Systems Biology Unit, Biological Research Center, Szeged, 6726, Hungary;
| | - X. Yang
- Institute of Applied Mycology, Huazhong Agricultural University, 430070 Hubei Province, PR China
| | - Z. Merényi
- Synthetic and Systems Biology Unit, Biological Research Center, Szeged, 6726, Hungary;
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Shen X, Song C, Shi F, Tian Y, Tie G, Qiao S, Peng X, Zhang W, Hou Z. Research on Laser-Induced Damage Post-Restoration Morphology of Fused Silica and Optimization of Patterned CO 2 Laser Repair Strategy. Micromachines (Basel) 2023; 14:1359. [PMID: 37512670 PMCID: PMC10383169 DOI: 10.3390/mi14071359] [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] [Subscribe] [Scholar Register] [Received: 05/25/2023] [Revised: 06/21/2023] [Accepted: 06/21/2023] [Indexed: 07/30/2023]
Abstract
Fused silica has become the preferred optical material in the field of inertial confinement fusion (ICF) due to its excellent performance; however, these costly optical elements are vulnerable, and their manufacture is time-consuming. Therefore, the restoration of laser-induced damage for these optical elements is of great value. To restrain the post-restoration raised rim problem in the CO2 laser repair process to improve the restoration quality, the separate influences of key parameters of laser power, irradiation duration, and laser beam diameter on post-restoration pit morphology are compared in combined simulation and experimental studies. An optimized, patterned CO2 laser strategy is proposed and verified; the results indicate that, with the strategy, the rim height decreases from 2.6 μm to 1.52 μm, and maximal photo thermal absorption is decreased from 784.2 PPM to 209.43 PPM.
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Affiliation(s)
- Xiao Shen
- College of Intelligence Science and Technology, National University of Defense Technology, Changsha 410073, China
- Hunan Key Laboratory of Ultra-Precision Machining Technology, National University of Defense Technology, Changsha 410073, China
- Laboratory of Science and Technology on Integrated Logistics Support, National University of Defense Technology, Changsha 410073, China
| | - Ci Song
- College of Intelligence Science and Technology, National University of Defense Technology, Changsha 410073, China
- Hunan Key Laboratory of Ultra-Precision Machining Technology, National University of Defense Technology, Changsha 410073, China
- Laboratory of Science and Technology on Integrated Logistics Support, National University of Defense Technology, Changsha 410073, China
| | - Feng Shi
- College of Intelligence Science and Technology, National University of Defense Technology, Changsha 410073, China
- Hunan Key Laboratory of Ultra-Precision Machining Technology, National University of Defense Technology, Changsha 410073, China
- Laboratory of Science and Technology on Integrated Logistics Support, National University of Defense Technology, Changsha 410073, China
| | - Ye Tian
- College of Intelligence Science and Technology, National University of Defense Technology, Changsha 410073, China
- Hunan Key Laboratory of Ultra-Precision Machining Technology, National University of Defense Technology, Changsha 410073, China
- Laboratory of Science and Technology on Integrated Logistics Support, National University of Defense Technology, Changsha 410073, China
| | - Guipeng Tie
- College of Intelligence Science and Technology, National University of Defense Technology, Changsha 410073, China
- Hunan Key Laboratory of Ultra-Precision Machining Technology, National University of Defense Technology, Changsha 410073, China
- Laboratory of Science and Technology on Integrated Logistics Support, National University of Defense Technology, Changsha 410073, China
| | - Shuo Qiao
- College of Intelligence Science and Technology, National University of Defense Technology, Changsha 410073, China
- Hunan Key Laboratory of Ultra-Precision Machining Technology, National University of Defense Technology, Changsha 410073, China
- Laboratory of Science and Technology on Integrated Logistics Support, National University of Defense Technology, Changsha 410073, China
| | - Xing Peng
- College of Intelligence Science and Technology, National University of Defense Technology, Changsha 410073, China
- Hunan Key Laboratory of Ultra-Precision Machining Technology, National University of Defense Technology, Changsha 410073, China
- Laboratory of Science and Technology on Integrated Logistics Support, National University of Defense Technology, Changsha 410073, China
| | - Wanli Zhang
- College of Intelligence Science and Technology, National University of Defense Technology, Changsha 410073, China
- Hunan Key Laboratory of Ultra-Precision Machining Technology, National University of Defense Technology, Changsha 410073, China
- Laboratory of Science and Technology on Integrated Logistics Support, National University of Defense Technology, Changsha 410073, China
| | - Zhanqiang Hou
- College of Intelligence Science and Technology, National University of Defense Technology, Changsha 410073, China
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5
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Zhang Z, Song C, Shi F, Tie G, Zhang W, Wang B, Tian Y, Hou Z. Theoretical Modeling Method for Material Removal Characteristics of Abrasive Water Jet Polishing under Rotating Oblique Incidence. Micromachines (Basel) 2022; 13:1690. [PMID: 36296043 PMCID: PMC9609167 DOI: 10.3390/mi13101690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 09/06/2022] [Revised: 09/29/2022] [Accepted: 10/06/2022] [Indexed: 06/16/2023]
Abstract
Abrasive water jet polishing (AWJP), as an ultra-precision machining technology, has unique machining advantages. However, the machining application of nozzles in vertical and inclined states is greatly limited because rotational symmetric material removal characteristics and the largest amount of central material removal cannot be obtained. At the same time, considering the many controllable and uncontrollable factors in AWJP, it is difficult to accurately model the removal characteristics obtained by machining. Based on the idea of the Preston equation and the calculation of fluid dynamics, this study first analyzed the material removal characteristics of a single abrasive particle and used FLUENT fluid simulation software to obtain the pressure and velocity distributions at different positions in the processes of nozzle rotation and tilt polishing. By analyzing the influence of the pressure and velocity distributions on material removal and the surface shear stress of the workpiece, a theoretical model of the material removal characteristics of abrasive water jet polishing under rotating oblique incidence was established. Finally, the effectiveness of the theoretical removal model was verified by comparing and analyzing experimental and theoretical results.
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Affiliation(s)
- Zhiqiang Zhang
- College of Intelligence Science and Technology, National University of Defense Technology, 109 Deya Road, Changsha 410073, China
- Hunan Key Laboratory of Ultra-Precision Machining Technology, Changsha 410073, China
- Laboratory of Science and Technology on Integrated Logistics Support, National University of Defense Technology, 109 Deya Road, Changsha 410073, China
| | - Ci Song
- College of Intelligence Science and Technology, National University of Defense Technology, 109 Deya Road, Changsha 410073, China
- Hunan Key Laboratory of Ultra-Precision Machining Technology, Changsha 410073, China
- Laboratory of Science and Technology on Integrated Logistics Support, National University of Defense Technology, 109 Deya Road, Changsha 410073, China
| | - Feng Shi
- College of Intelligence Science and Technology, National University of Defense Technology, 109 Deya Road, Changsha 410073, China
- Hunan Key Laboratory of Ultra-Precision Machining Technology, Changsha 410073, China
- Laboratory of Science and Technology on Integrated Logistics Support, National University of Defense Technology, 109 Deya Road, Changsha 410073, China
| | - Guipeng Tie
- College of Intelligence Science and Technology, National University of Defense Technology, 109 Deya Road, Changsha 410073, China
- Hunan Key Laboratory of Ultra-Precision Machining Technology, Changsha 410073, China
- Laboratory of Science and Technology on Integrated Logistics Support, National University of Defense Technology, 109 Deya Road, Changsha 410073, China
| | - Wanli Zhang
- College of Intelligence Science and Technology, National University of Defense Technology, 109 Deya Road, Changsha 410073, China
- Hunan Key Laboratory of Ultra-Precision Machining Technology, Changsha 410073, China
- Laboratory of Science and Technology on Integrated Logistics Support, National University of Defense Technology, 109 Deya Road, Changsha 410073, China
| | - Bo Wang
- College of Intelligence Science and Technology, National University of Defense Technology, 109 Deya Road, Changsha 410073, China
- Hunan Key Laboratory of Ultra-Precision Machining Technology, Changsha 410073, China
- Laboratory of Science and Technology on Integrated Logistics Support, National University of Defense Technology, 109 Deya Road, Changsha 410073, China
| | - Ye Tian
- College of Intelligence Science and Technology, National University of Defense Technology, 109 Deya Road, Changsha 410073, China
- Hunan Key Laboratory of Ultra-Precision Machining Technology, Changsha 410073, China
- Laboratory of Science and Technology on Integrated Logistics Support, National University of Defense Technology, 109 Deya Road, Changsha 410073, China
| | - Zhanqiang Hou
- College of Intelligence Science and Technology, National University of Defense Technology, 109 Deya Road, Changsha 410073, China
- Hunan Key Laboratory of Ultra-Precision Machining Technology, Changsha 410073, China
- Laboratory of Science and Technology on Integrated Logistics Support, National University of Defense Technology, 109 Deya Road, Changsha 410073, China
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6
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Miao T, Zhou X, Wu X, Li Q, Hou Z, Hu X, Wang Z, Xiao D. Nonlinearity-mediated digitization and amplification in electromechanical phonon-cavity systems. Nat Commun 2022; 13:2352. [PMID: 35487900 PMCID: PMC9054851 DOI: 10.1038/s41467-022-29995-x] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2021] [Accepted: 04/08/2022] [Indexed: 11/09/2022] Open
Abstract
Electromechanical phonon-cavity systems are man-made micro-structures, in which vibrational energy can be coherently transferred between different degrees of freedom. In such devices, the energy transfer direction and coupling strength can be parametrically controlled, offering great opportunities for both fundamental studies and practical applications such as phonon manipulation and sensing. However, to date the investigation of such systems has largely been limited to linear vibrations, while their responses in the nonlinear regime remain yet to be explored. Here, we demonstrate nonlinear operation of electromechanical phonon-cavity systems, and show that the resonant response differs drastically from that in the linear regime. We further demonstrate that by controlling the parametric pump, one can achieve nonlinearity-mediated digitization and amplification in the frequency domain, which can be exploited to build high-performance MEMS sensing devices based on phonon-cavity systems. Our findings offer intriguing opportunities for creating frequency-shift-based sensors and transducers.
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Affiliation(s)
- Tongqiao Miao
- College of Intelligence Science, National University of Defense Technology, 410073, Changsha, China
| | - Xin Zhou
- College of Intelligence Science, National University of Defense Technology, 410073, Changsha, China
| | - Xuezhong Wu
- College of Intelligence Science, National University of Defense Technology, 410073, Changsha, China.,The Laboratory of Science and Technology on Integrated Logistics Support, National University of Defense Technology, 410073, Changsha, China.,MEMS Engineering Center of Hunan, 410100, Changsha, China
| | - Qingsong Li
- College of Intelligence Science, National University of Defense Technology, 410073, Changsha, China
| | - Zhanqiang Hou
- College of Intelligence Science, National University of Defense Technology, 410073, Changsha, China
| | - Xiaoping Hu
- College of Intelligence Science, National University of Defense Technology, 410073, Changsha, China
| | - Zenghui Wang
- Institute of Fundamental and Frontier Sciences, University of Electronic Science and Technology of China, 610054, Chengdu, China. .,State Key Laboratory of Electronic Thin Films and Integrated Devices, University of Electronic Science and Technology of China, 610054, Chengdu, China.
| | - Dingbang Xiao
- College of Intelligence Science, National University of Defense Technology, 410073, Changsha, China. .,The Laboratory of Science and Technology on Integrated Logistics Support, National University of Defense Technology, 410073, Changsha, China. .,MEMS Engineering Center of Hunan, 410100, Changsha, China.
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Wan M, Yan L, Xu Z, Hou Z, Kang K, Cui R, Yu Y, Song J, Hui F, Wang Y, Miao Z, Lou X, Ma N. Symptomatic and Asymptomatic Chronic Carotid Artery Occlusion on High-Resolution MR Vessel Wall Imaging. AJNR Am J Neuroradiol 2022; 43:110-116. [PMID: 34857516 PMCID: PMC8757554 DOI: 10.3174/ajnr.a7365] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/31/2021] [Accepted: 09/28/2021] [Indexed: 01/03/2023]
Abstract
BACKGROUND AND PURPOSE Chronic carotid artery occlusion remains a poorly understood risk factor for subsequent stroke, and potential revascularization is dependent on understanding the anatomy and nature of the occlusion. Luminal imaging cannot assess the nature of an occlusion, so the internal structure of the occlusion must be inferred. The present study examines the signal characteristics of symptomatic and asymptomatic carotid occlusion that may point to management differentiation. MATERIALS AND METHODS We prospectively recruited patients who were diagnosed with chronic carotid artery occlusion defined as longer than 4 weeks and confirmed by DSA. All patients underwent high-resolution MR vessel wall imaging examinations after enrollment. Baseline characteristics, vessel wall imaging features, and DSA features were collected and evaluated. The vessel wall imaging features included segment involvement, signal intensity, contrast enhancement, and vessel wall thickness. The symptomatic and asymptomatic chronic carotid artery occlusions were compared. RESULTS A total of 44 patients with 48 lesions were included in this study from February 2020 to December 2020. Of the 48 lesions, 35 (72.9%) were symptomatic and 13 (27.1%) were asymptomatic. There was no difference in baseline and DSA features. On vessel wall imaging, C1 and C2 were the most commonly involved segments (91.7% and 68.8%, respectively). Compared with symptomatic lesions, asymptomatic lesions were more often isointense (69.2%) in the distal segment (P = .03). Both groups had diffuse wall thickening (80% and 100%). CONCLUSIONS Signal characteristics between those with symptomatic and asymptomatic carotid artery occlusions differ in a statistically significant fashion, indicating a different structure of the occlusion.
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Affiliation(s)
- M. Wan
- From the Department of Interventional Neuroradiology (M.W., L.Y., Z.H., R.C., Y.Y., J.S., Z.M., N.M.),China National Clinical Research Center for Neurological Diseases (M.W., L.Y., Z.H., K.K., R.C., Y.Y., J.S., Y.W., Z.M., N.M.), Beijing, China,Department of Neurology (M.W.), Shijingshan Teaching Hospital of Capital Medical University, Beijing Shijingshan Hospital, Beijing, China
| | - L. Yan
- From the Department of Interventional Neuroradiology (M.W., L.Y., Z.H., R.C., Y.Y., J.S., Z.M., N.M.),China National Clinical Research Center for Neurological Diseases (M.W., L.Y., Z.H., K.K., R.C., Y.Y., J.S., Y.W., Z.M., N.M.), Beijing, China
| | - Z. Xu
- Department of Neurology (Z.X.), The First Affiliated Hospital of College of Medicine, Zhejiang University, Hangzhou, China
| | - Z. Hou
- From the Department of Interventional Neuroradiology (M.W., L.Y., Z.H., R.C., Y.Y., J.S., Z.M., N.M.),China National Clinical Research Center for Neurological Diseases (M.W., L.Y., Z.H., K.K., R.C., Y.Y., J.S., Y.W., Z.M., N.M.), Beijing, China
| | - K. Kang
- Neurology (K.K., Y.W.), Beijing Tiantan Hospital, Capital Medical University, Beijing, China,China National Clinical Research Center for Neurological Diseases (M.W., L.Y., Z.H., K.K., R.C., Y.Y., J.S., Y.W., Z.M., N.M.), Beijing, China
| | - R. Cui
- From the Department of Interventional Neuroradiology (M.W., L.Y., Z.H., R.C., Y.Y., J.S., Z.M., N.M.),China National Clinical Research Center for Neurological Diseases (M.W., L.Y., Z.H., K.K., R.C., Y.Y., J.S., Y.W., Z.M., N.M.), Beijing, China
| | - Y. Yu
- From the Department of Interventional Neuroradiology (M.W., L.Y., Z.H., R.C., Y.Y., J.S., Z.M., N.M.),China National Clinical Research Center for Neurological Diseases (M.W., L.Y., Z.H., K.K., R.C., Y.Y., J.S., Y.W., Z.M., N.M.), Beijing, China
| | - J. Song
- From the Department of Interventional Neuroradiology (M.W., L.Y., Z.H., R.C., Y.Y., J.S., Z.M., N.M.),China National Clinical Research Center for Neurological Diseases (M.W., L.Y., Z.H., K.K., R.C., Y.Y., J.S., Y.W., Z.M., N.M.), Beijing, China
| | - F.K. Hui
- Department of Radiology and Radiological Sciences (F.K.H.), Johns Hopkins Hospital, Baltimore, Maryland
| | - Y. Wang
- Neurology (K.K., Y.W.), Beijing Tiantan Hospital, Capital Medical University, Beijing, China,China National Clinical Research Center for Neurological Diseases (M.W., L.Y., Z.H., K.K., R.C., Y.Y., J.S., Y.W., Z.M., N.M.), Beijing, China
| | - Z. Miao
- From the Department of Interventional Neuroradiology (M.W., L.Y., Z.H., R.C., Y.Y., J.S., Z.M., N.M.),China National Clinical Research Center for Neurological Diseases (M.W., L.Y., Z.H., K.K., R.C., Y.Y., J.S., Y.W., Z.M., N.M.), Beijing, China
| | - X. Lou
- Department of Radiology (X.L.), Chinese PLA General Hospital, Beijing, China
| | - N. Ma
- From the Department of Interventional Neuroradiology (M.W., L.Y., Z.H., R.C., Y.Y., J.S., Z.M., N.M.),China National Clinical Research Center for Neurological Diseases (M.W., L.Y., Z.H., K.K., R.C., Y.Y., J.S., Y.W., Z.M., N.M.), Beijing, China
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Ning Y, Roberts NJ, Qi J, Peng Z, Long Z, Zhou S, Gu J, Hou Z, Yang E, Ren Y, Lang J, Liang Z, Zhang M, Ma J, Jiang G. Inbreeding status and implications for Amur tigers. Anim Conserv 2021. [DOI: 10.1111/acv.12761] [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: 11/29/2022]
Affiliation(s)
- Y. Ning
- College of Life Science Jilin Agricultural University Changchun China
- Feline Research Center of National Forestry and Grassland Administration College of Wildlife and Protected Area Northeast Forestry University Harbin China
| | - N. J. Roberts
- Feline Research Center of National Forestry and Grassland Administration College of Wildlife and Protected Area Northeast Forestry University Harbin China
| | - J. Qi
- Feline Research Center of National Forestry and Grassland Administration College of Wildlife and Protected Area Northeast Forestry University Harbin China
- School of Forestry Northeast Forestry University Harbin China
| | - Z. Peng
- School of Basic Medical Sciences Nanchang University Nanchang China
| | - Z. Long
- Feline Research Center of National Forestry and Grassland Administration College of Wildlife and Protected Area Northeast Forestry University Harbin China
| | - S. Zhou
- Heilongjiang Research Institute of Wildlife Harbin China
| | - J. Gu
- Feline Research Center of National Forestry and Grassland Administration College of Wildlife and Protected Area Northeast Forestry University Harbin China
| | - Z. Hou
- College of Wildlife and Protected Area Northeast Forestry University Harbin China
| | - E. Yang
- Wildlife Conservation Society Hunchun China
| | - Y. Ren
- Wildlife Conservation Society Hunchun China
| | - J. Lang
- Jilin Hunchun Amur Tiger National Nature Reserve Hunchun China
| | - Z. Liang
- Heilongjiang Laoyeling Amur Tiger National Nature Reserve Dongning China
| | - M. Zhang
- Feline Research Center of National Forestry and Grassland Administration College of Wildlife and Protected Area Northeast Forestry University Harbin China
| | - J. Ma
- Feline Research Center of National Forestry and Grassland Administration College of Wildlife and Protected Area Northeast Forestry University Harbin China
| | - G. Jiang
- Feline Research Center of National Forestry and Grassland Administration College of Wildlife and Protected Area Northeast Forestry University Harbin China
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Adusumilli P, Amador A, Chintala N, Hou Z, Offin M, Pineda J, Senechal B, Quach H, Bellis R, Banerjee S, Saini J, Zhu A, Daly R, Sadelain M, Rivière I, Zauderer M, O'Cearbhaill R. 46MO Promoting functional persistence in solid tumor CAR T-cell therapy: Mesothelin-targeted CAR (M28z1XXPD1DNR) with T-cell intrinsic PD1 dominant negative receptor. Ann Oncol 2021. [DOI: 10.1016/j.annonc.2021.10.063] [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] Open
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10
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Hussain S, Li X, Bukhari SM, Zhou M, Ahmad S, Ahmad S, Javid A, Guan C, Hussain A, Ali W, Khalid N, Ahmad U, Tian L, Hou Z. Cross-genera amplification and identification of Colpodella sp. with Cryptosporidium primers in fecal samples of zoo felids from northeast China. BRAZ J BIOL 2021; 83:e247181. [PMID: 34495161 DOI: 10.1590/1519-6984.247181] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/04/2021] [Accepted: 02/18/2021] [Indexed: 11/22/2022] Open
Abstract
The protozoans include many intracellular human pathogens. Accurate detection of these pathogens is necessary to treat the diseases. In clinical epidemiology, molecular identification of protozoan is considered a more reliable and rapid method for identification than microscopy. Among these protozoans, Cryptosporidium considered being one of the important water-borne zoonotic pathogens and a major cause of a diarrheal disease named cryptosporidiosis in humans, domestic animals, and wild animals. This study was aimed to identify Cryptosporidium in zoo felids (N= 56) belonging to different zoo of China, but accidentlly Colpodella was encountered in the zoo felids sample and phylogenetic data confirmed this unexpected amplification from fecal samples using two-step nested-PCR. Phylogenetic analysis revealed the fact about the specific primers used previously by many researchers and cross-genera amplification. We came to know that genetically sequenced amplicon gives more accurate identification of species. This study suggests more investigation on Colpodella which has been neglected previously but gains the attention of researchers after identified from humans and animals and has been known to correlate with neurological symptoms in patients.
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Affiliation(s)
- S Hussain
- Northeast Forestry University, College of Wildlife and Protected Area, Harbin, China
| | - X Li
- Harbin Northern Forest Zoo, Harbin, China
| | - S M Bukhari
- University of Veterinary and Animal Sciences, Department of Wildlife and Ecology, Lahore, Pakistan
| | - M Zhou
- Northeast Forestry University, College of Wildlife and Protected Area, Harbin, China
| | - S Ahmad
- Department of Entomology, University of the Punjab, Lahore, Pakistan
| | - S Ahmad
- Department of Entomology, University of the Punjab, Lahore, Pakistan
| | - A Javid
- University of Veterinary and Animal Sciences, Department of Wildlife and Ecology, Lahore, Pakistan
| | - C Guan
- Harbin Northern Forest Zoo, Harbin, China
| | - A Hussain
- University of Veterinary and Animal Sciences, Department of Wildlife and Ecology, Lahore, Pakistan
| | - W Ali
- University of Veterinary and Animal Sciences, Department of Wildlife and Ecology, Lahore, Pakistan
| | - N Khalid
- University of Veterinary and Animal Sciences, Department of Wildlife and Ecology, Lahore, Pakistan
| | - U Ahmad
- University of Veterinary and Animal Sciences, Department of Wildlife and Ecology, Lahore, Pakistan
| | - L Tian
- Northeast Forestry University, College of Wildlife and Protected Area, Harbin, China
| | - Z Hou
- Northeast Forestry University, College of Wildlife and Protected Area, Harbin, China.,China State Forestry Administration, Key Laboratory of Wildlife Conservation, Harbin, China
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Zhang J, Wang X, Ren Z, Shao S, Hou Z, Wang Z, Xi J, Bai W. Impact of age and menopausal stage on serum anti-Müllerian hormone levels in middle-aged women. Climacteric 2021; 24:618-623. [PMID: 34427163 DOI: 10.1080/13697137.2021.1965114] [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: 10/20/2022]
Abstract
OBJECTIVE This study aimed to evaluate the association between age, menopausal stage and serum anti-Müllerian hormone (AMH) levels in middle-aged women. METHODS In this cross-sectional study, the serum AMH levels of 288 healthy women aged 40-55 years (divided into age groups: 40-44, 45-49 and 50-55 years) were evaluated. Stages of Reproductive Aging Workshop + 10 criteria were used to categorize these women into menopausal stages: late reproductive, menopausal transition and early postmenopausal stages. The impact of age, menopausal stage and hormone replacement therapy on serum AMH levels was analyzed using multi-factor analysis of variance. Effects of body mass index, smoking status and oral contraceptive use were simultaneously considered. RESULTS The median AMH level was 0.140 ng/ml. Log-AMH levels varied according to age group (variance = 20.113, F = 88.538, p < 0.001) and menopausal stage (variance = 5.543, F = 24.501, p < 0.001). An exponential model defined as AMH = 227,421.757 × e(-0.301 × age) was fit to describe the decline in AMH level with age. The 5th-95th percentiles of the AMH levels ranged from less than 0.020 to 3.150, less than 0.020 to 1.944 and less than 0.020 to 0.030 ng/ml in the aforementioned menopausal stages, respectively. CONCLUSION Age and menopausal stage were associated with AMH levels; age had a greater impact on AMH than menopausal stage in middle-aged women.
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Affiliation(s)
- J Zhang
- Department of Obstetrics and Gynecology, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - X Wang
- Department of Obstetrics and Gynecology, Ninth School of Clinical Medicine, Peking University, Beijing, China
| | - Z Ren
- Department of Maternal and Child Health, School of Public Health, Peking University, Beijing, China
| | - S Shao
- Medical Examination Center, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - Z Hou
- Department of Obstetrics and Gynecology, Beijing Haidian District Maternal and Child Health Hospital, Beijing, China
| | - Z Wang
- Department of Obstetrics and Gynecology, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
| | - J Xi
- Department of Obstetrics and Gynecology, Beijing Xicheng Maternal and Child Health Hospital, Beijing, China
| | - W Bai
- Department of Obstetrics and Gynecology, Beijing Shijitan Hospital, Capital Medical University, Beijing, China
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12
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Lv H, Chen W, Zhang T, Hou Z, Yang G, Zhu Y, Wang H, Yin B, Guo J, Liu L, Hu P, Liu S, Liu B, Sun J, Li S, Zhang X, Li Y, Zhang Y. Traumatic fractures in China from 2012 to 2014: a National Survey of 512,187 individuals. Osteoporos Int 2020; 31:2167-2178. [PMID: 32524174 DOI: 10.1007/s00198-020-05496-9] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/11/2020] [Accepted: 06/05/2020] [Indexed: 10/24/2022]
Abstract
UNLABELLED The China National Fracture Study has been conducted to provide a national dataset of traumatic fractures across China. A national representative sample of 512,187 individuals was selected. The population-weighted incidence rates, distribution, injury mechanisms, and risk factors for traumatic fractures were identified for various groups of individuals. INTRODUCTION The China National Fracture Study (CNFS) has been conducted to provide a comprehensive and up-to-date national dataset of traumatic fractures across China. This study aims to report the national incidences and distributions of traumatic fractures that occurred in 2012, 2013, and 2014 and to analyze the risk factors. METHODS A national representative sample of individuals was selected from 24 rural counties and 24 urban cities of 8 provinces using stratified random sampling and the probability proportional to size (PPS) methodology. Participants were interviewed to identify whether they sustained traumatic fractures of the trunk and/or four extremities that had occurred in 2012, 2013, and 2014. The main risk factors associated with traumatic fractures were analyzed by multiple logistic regression models. RESULTS A total of 512,187 individuals, including 259,649 males and 252,538 females, participated in the CNFS. The population-weighted incidence rates of traumatic fractures in China were calculated to be 2.5 (95% CI, 2.2-2.8) per 1000 population in 2012, 2.8 (95% CI, 2.5-3.3) in 2013, and 3.2% (95% CI, 2.8-3.6) in 2014. The population-weighted incidence rates of fragility fractures among participants aged 65 years and older were calculated to be 27.4 (95% CI, 21.4-33.4) per 1000 population in 2012, 36.0 (95% CI, 28.6-43.5) in 2013, and 42.4 (95% CI, 34.9-49.9) in 2014. The most common cause of fracture was low-energy injuries, followed by traffic accidents. For all age groups, sleeping less than 7 h was a risk factor for traumatic fractures. Alcohol consumption and previous fracture history were identified as risk factors for adults aged 15 years and over. Cigarette smoking was found to be a risk factor for males aged 15-64 years old. For individuals aged 15-64 years old, underweight incurred a risk effect for males and overweight for females. Alcohol consumption, sleeping less than 7 h per day, living in the central and eastern regions, a body mass index less of than 18.5, and having a previous fracture history were identified as strong risk factors for fragility fractures. CONCLUSION The national incidence, distribution, and injury mechanisms for traumatic fractures were revealed in the CNFS. Risk factors were identified for various groups of individuals.
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Affiliation(s)
- H Lv
- Department of Orthopedic Surgery, the Third Hospital of Hebei Medical University, No.139 Ziqiang Road, Shijiazhuang, 050051, China
| | - W Chen
- Department of Orthopedic Surgery, the Third Hospital of Hebei Medical University, No.139 Ziqiang Road, Shijiazhuang, 050051, China
| | - T Zhang
- Department of Orthopedic Surgery, the Third Hospital of Hebei Medical University, No.139 Ziqiang Road, Shijiazhuang, 050051, China
| | - Z Hou
- Department of Orthopedic Surgery, the Third Hospital of Hebei Medical University, No.139 Ziqiang Road, Shijiazhuang, 050051, China
| | - G Yang
- Department of Orthopedic Surgery, the Third Hospital of Hebei Medical University, No.139 Ziqiang Road, Shijiazhuang, 050051, China
| | - Y Zhu
- Department of Orthopedic Surgery, the Third Hospital of Hebei Medical University, No.139 Ziqiang Road, Shijiazhuang, 050051, China
| | - H Wang
- Department of Orthopedic Surgery, the Third Hospital of Hebei Medical University, No.139 Ziqiang Road, Shijiazhuang, 050051, China
| | - B Yin
- Department of Orthopedic Surgery, the Third Hospital of Hebei Medical University, No.139 Ziqiang Road, Shijiazhuang, 050051, China
| | - J Guo
- Department of Orthopedic Surgery, the Third Hospital of Hebei Medical University, No.139 Ziqiang Road, Shijiazhuang, 050051, China
| | - L Liu
- Department of Orthopedic Surgery, the Third Hospital of Hebei Medical University, No.139 Ziqiang Road, Shijiazhuang, 050051, China
| | - P Hu
- Department of Orthopedic Surgery, the Third Hospital of Hebei Medical University, No.139 Ziqiang Road, Shijiazhuang, 050051, China
| | - S Liu
- Department of Orthopedic Surgery, the Third Hospital of Hebei Medical University, No.139 Ziqiang Road, Shijiazhuang, 050051, China
| | - B Liu
- Department of Orthopedic Surgery, the Third Hospital of Hebei Medical University, No.139 Ziqiang Road, Shijiazhuang, 050051, China
| | - J Sun
- Department of Orthopedic Surgery, the Third Hospital of Hebei Medical University, No.139 Ziqiang Road, Shijiazhuang, 050051, China
| | - S Li
- Department of Orthopedic Surgery, the Third Hospital of Hebei Medical University, No.139 Ziqiang Road, Shijiazhuang, 050051, China
| | - X Zhang
- Department of Epidemiology and Statistics, Hebei Medical University, Shijiazhuang, China
| | - Y Li
- Fuwai Hospital Chinese Academy of Medical Sciences, Shenzhen, Shenzhen, 518057, China
| | - Y Zhang
- Department of Orthopedic Surgery, the Third Hospital of Hebei Medical University, No.139 Ziqiang Road, Shijiazhuang, 050051, China.
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Rubinsak L, Wallace-Povirk A, Hou Z, O'Connor C, Gangjee A, Morris R, Matherly L. Targeting one-carbon metabolism in syngeneic mouse model of BRCA-mutated high-grade serous ovarian cancer. Gynecol Oncol 2020. [DOI: 10.1016/j.ygyno.2020.05.097] [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]
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14
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Zhao H, Zhou X, Yuan G, Hou Z, Sun H, Zhai N, Huang B, Li X. CDC6 is up-regulated and a poor prognostic signature in glioblastoma multiforme. Clin Transl Oncol 2020; 23:565-571. [PMID: 32661826 DOI: 10.1007/s12094-020-02449-w] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/04/2020] [Accepted: 07/02/2020] [Indexed: 02/06/2023]
Abstract
PURPOSE Glioblastoma multiforme (GBM) represents the most common and the most malignant type of brain tumor. Cell division cycle 6 (CDC6), a gene associated with DNA replication initiation, has been proven to be associated with the prognosis of multiple tumors. In this study, we aim to explore the association between CDC6 expression and GBM carcinogenesis and prognosis. METHODS CDC6 expression in normal cells and GBM cells was explored by analyzing TCGA dataset, as well as by RT-PCR and western blot methods. Survival analysis was performed by the Kaplan-Meier method. Multivariate Cox-regression analysis was adopted to estimate the independence of CDC6 as a GBM prognostic factor. RESULTS AND CONCLUSIONS Elevated CDC6 levels in GBM tumor tissues compared with those in normal brain tissues were illustrated by analyzing the gene expression profiles from TCGA dataset, and confirmed by RT-PCR and western blot assays in GBM tumor and normal human astrocyte cell lines. Kaplan-Meier analysis indicated the negative influence of high CDC6 expression on GBM overall survival (OS) probability and days to progression (D2P) after initial treatment, but not on days to recurrence (D2R) after initial treatment. Multivariate Cox regression analysis showed CDC6 as an independent signature marker gene for GBM prognosis. In addition, the combination of CDC6 mRNA expression and CpG island methylator phenotype (CIMP) could sensitively predict 3-year OS and D2P. In conclusion, our study uncovered the role of CDC6 in GBM carcinogenesis and prognosis for the first time, which could shed new light on GBM diagnosis and treatment.
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Affiliation(s)
- H Zhao
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University and Institute of Brain and Brain-Inspired Science, Shandong University, Jinan, 250012, Shandong, China.,Department of Neurosurgery, Zibo Central Hospital Affiliated to Shandong University, Zibo, 255036, Shandong, China
| | - X Zhou
- Department of Paediatric Neurology, Zibo Central Hospital Affiliated to Shandong University, Zibo, 255036, Shandong, China
| | - G Yuan
- Department of Neurosurgery, Zibo Central Hospital Affiliated to Shandong University, Zibo, 255036, Shandong, China
| | - Z Hou
- Department of Pathology, Zibo Central Hospital Affiliated to Shandong University, Zibo, 255036, Shandong, China
| | - H Sun
- Department of Neurosurgery, Zibo Central Hospital Affiliated to Shandong University, Zibo, 255036, Shandong, China
| | - N Zhai
- Department of Neurosurgery, Zibo Central Hospital Affiliated to Shandong University, Zibo, 255036, Shandong, China
| | - B Huang
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University and Institute of Brain and Brain-Inspired Science, Shandong University, Jinan, 250012, Shandong, China.,Shandong Key Laboratory of Brain Function Remodeling, 250012, Jinan, China
| | - X Li
- Department of Neurosurgery, Qilu Hospital, Cheeloo College of Medicine, Shandong University and Institute of Brain and Brain-Inspired Science, Shandong University, Jinan, 250012, Shandong, China. .,Shandong Key Laboratory of Brain Function Remodeling, 250012, Jinan, China.
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Yin W, Li X, Hou Z, An Y, Budoff M, Lu B. Deep Learning Versus Radiologists Visual Assessment To Identify Plaque And Stenosis At Coronary Ct Angiography. J Cardiovasc Comput Tomogr 2020. [DOI: 10.1016/j.jcct.2020.06.018] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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16
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Hou Z, Lu B, Yin W, Gao Y, An Y. Machine Learning For Pretest Probability Of Coronary Atherosclerotic Plaque In Outpatients: A Multicenter Prospective Cohort Study. J Cardiovasc Comput Tomogr 2020. [DOI: 10.1016/j.jcct.2020.06.015] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/23/2022]
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17
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Li JY, Wu GM, Hou Z, Cao YM. Expression of C1q/TNF-related protein-3 (CTRP3) in serum of patients with gestational diabetes mellitus and its relationship with insulin resistance. Eur Rev Med Pharmacol Sci 2019; 21:5702-5710. [PMID: 29272006 DOI: 10.26355/eurrev_201712_14016] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
Abstract
OBJECTIVE In this study, the changes of insulin resistance (IR) and pancreatic β-cell function in GDM patients were observed, changes of CTRP3 level in fasting serum and relationships with plasma glucose (PG) and pancreatic β-cell function were explored at the same time, and the correlation between serum CTRP3 and body mass index (BMI) was preliminarily discussed, providing a new way to identify the pathogenesis of GDM. PATIENTS AND METHODS Data of women from 24 to 28 weeks of pregnancy were collected. 100 women were selected to form gestational diabetes mellitus (GDM) group and another 100 women were chosen to constitute normal glucose tolerance (NGT) group according to the results of oral glucose tolerance test (OGTT). They were divided into GDM overweight/obesity (GDM + OW) group, GDM non-overweight/obesity (GDM + NW) group, simple overweight (OW) group and normal body weight (NW) group, according to whether the progestational body mass index (BMI) was higher than 24 kg/m2 before pregnancy. General information of all subjects, for example, age, last menstrual period, parity, diet, weight and height, were collected, and blood samples were taken from all subjects for use in detections of total cholesterol (TC), triglyceride (TG), very low-density lipoprotein (VLDL), low-density lipoprotein cholesterol (LDL-C), high-density lipoprotein cholesterol (HDL-C) and serum C1q/tumor necrosis factor-related protein-3 (CTRP3). RESULTS The levels of FPG, 1 h PG, 2 h PG, fasting CP (FCP), fasting insulin (FINS), homeostasis model assessment of IR (HOMA-IR), TG and VLDL-C in the GDM group, were significantly higher than those in the NGT group. TC and LDL-C in the GDM group were greater than those in the NGT group. Compared with that in the NGT group, homeostasis model assessment of β (HOMA-β) index was lower in the GDM group. From the NGT group to the GDM group, FPG, 1 h PG, 2 h PG, FINS and FCP had rising tendencies, and the differences were of statistical significance. Pearson correlation analysis indicated that HOMA-IR was positively correlated with pre-pregnancy BMI, FPG, 2 h PG, FINS, 1 h INS, 2 h INS, FCP, 1 h CP and 2 h CP in the GDM group, HOMA-β was negatively related to FPG. In the NGT group, there was a positive correlation between HOMA-IR and pre-pregnancy BMI. The level of CTRP3 in fasting serum of the GDM group was distinctly lower than that of the NGT group. Pearson correlation analysis revealed that in the GDM group, fasting serum CTRP3 had positive correlations with HOMA-β and HDL-C, but negatively associated with pre-pregnancy BMI, FPG, 1 h PG, 2 h PG, FCP, HOMA-IR, TG and VLDL-C. In the NGT group, the fasting serum CTRP3 was negatively correlated with pre-pregnancy BMI. Multiple linear stepwise regression analysis showed FPG was an independent influencing factor for fasting serum CTRP3. CONCLUSIONS With the increase of FPG, the progression of GDM IR patients is increased, and pancreatic β-cell function progressively declines. The decrease of CTRP3 level in fasting serum in GDM patients plays a metabolic role in the pathogenesis of GDM.
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Affiliation(s)
- J-Y Li
- Obstetrical Department 3, Hebei Cangzhou Central Hospital, Hebei, China.
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Hou Z, Wang H, Feng Y, Song M, Li Q, Li J. Genetic variation and phylogenetic analysis of Porcine circovirus type 2 in China from 2016 to 2018. Acta Virol 2019; 63:459-468. [PMID: 31802689 DOI: 10.4149/av_2019_413] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
Infection with Porcine circovirus type 2 (PCV2), the essential cause of porcine circovirus (PCV) associated diseases, is a growing problem in swine industry around the world. High nucleotide alteration leads to the constant evolution of PCV2 and outbreak of disease caused by PCV2. In this study, 48 PCV2 strains were isolated in China between 2016 and 2018 and the genetic diversity of these PCV2 isolates was determined. Results showed that these PCV2 isolates were classified into genotypes PCV2a (4 of 48), PCV2b (13 of 48) and PCV2d (31 of 48). Among them, 54.5% isolated in 2016, 65.2% isolated in 2017 and 71.4% isolated in 2018 belonged to PCV2d. It indicated that the prevalence of PCV2d genotype increased. All strains shared 93.4%-100% nucleotide sequence identity for the whole genome. Results of the analysis using RDP 4.0 molecular recombination software showed there were no recombinant events among the 48 PCV2 isolates in this study. Further analysis indicated the presence of higher amino acid residues diversity in important epitopes (43D/G, 115D/G, 134N/T, 165P/T, 169G/R/S, and 210E/G/D) in the predominant genotype PCV2d. Animal tests showed the viral titer of the PCV2d strain LN-3 in sera was higher than that of PCV2b strain HeB-1 at 14 and 21 days post-challenge, however, the differences were not statistically significant. There were also no obvious differences between PCV2d strain LN-3 and PCV2b strain HeB-1 in the amount of PCV2 antigen in lymphoid tissues. On the account of the increasing prevalence of PCV2d genotype, it is necessary to find the cause of PCV2 genotype change, to evaluate the effect of existing commercial vaccines and to develop new vaccines based on PCV2d genotype, if necessary. Keywords: epitope; PCV2d; phylogeny; Porcine circovirus type 2; recombination; genetic diversity.
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Xu Q, Hou Z, Kuang Y, Miao T, Ou F, Zhuo M, Xiao D, Wu X. A Tuning Fork Gyroscope with a Polygon-Shaped Vibration Beam. Micromachines (Basel) 2019; 10:E813. [PMID: 31775325 PMCID: PMC6953044 DOI: 10.3390/mi10120813] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/22/2019] [Revised: 11/17/2019] [Accepted: 11/18/2019] [Indexed: 11/25/2022]
Abstract
In this paper, a tuning fork gyroscope with a polygon-shaped vibration beam is proposed. The vibration structure of the gyroscope consists of a polygon-shaped vibration beam, two supporting beams, and four vibration masts. The spindle azimuth of the vibration beam is critical for performance improvement. As the spindle azimuth increases, the proposed vibration structure generates more driving amplitude and reduces the initial capacitance gap, so as to improve the signal-to-noise ratio (SNR) of the gyroscope. However, after taking the driving amplitude and the driving voltage into consideration comprehensively, the optimized spindle azimuth of the vibration beam is designed in an appropriate range. Then, both wet etching and dry etching processes are applied to its manufacture. After that, the fabricated gyroscope is packaged in a vacuum ceramic tube after bonding. Combining automatic gain control and weak capacitance detection technology, the closed-loop control circuit of the drive mode is implemented, and high precision output circuit is achieved for the gyroscope. Finally, the proposed Micro Electro Mechanical Systems (MEMS) gyroscope system demonstrates a bias instability of 0.589°/h, an angular random walk (ARW) of 0.038°/√h, and a bandwidth of greater than 100 Hz in a full scale range of ± 200°/s at room temperature.
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Affiliation(s)
| | - Zhanqiang Hou
- College of Intelligence Science and Engineering, National University of Defense Technology, Changsha 410073, China; (Q.X.); (Y.K.); (T.M.); (F.O.); (M.Z.); (D.X.)
| | | | | | | | | | | | - Xuezhong Wu
- College of Intelligence Science and Engineering, National University of Defense Technology, Changsha 410073, China; (Q.X.); (Y.K.); (T.M.); (F.O.); (M.Z.); (D.X.)
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Omori Y, Baxter E, Chang C, Kirk D, Alarcon A, Bernstein G, Bleem L, Cawthon R, Choi A, Chown R, Crawford T, Davis C, De Vicente J, DeRose J, Dodelson S, Eifler T, Fosalba P, Friedrich O, Gatti M, Gaztanaga E, Giannantonio T, Gruen D, Hartley W, Holder G, Hoyle B, Huterer D, Jain B, Jarvis M, Krause E, MacCrann N, Miquel R, Prat J, Rau M, Reichardt C, Rozo E, Samuroff S, Sánchez C, Secco L, Sheldon E, Simard G, Troxel M, Vielzeuf P, Wechsler R, Zuntz J, Abbott T, Abdalla F, Allam S, Annis J, Avila S, Aylor K, Benson B, Bertin E, Bridle S, Brooks D, Burke D, Carlstrom J, Carnero Rosell A, Carrasco Kind M, Carretero J, Castander F, Chang C, Cho HM, Crites A, Crocce M, Cunha C, da Costa L, de Haan T, Desai S, Diehl H, Dietrich J, Dobbs M, Everett W, Fernandez E, Flaugher B, Frieman J, García-Bellido J, George E, Gruendl R, Gutierrez G, Halverson N, Harrington N, Hollowood D, Honscheid K, Holzapfel W, Hou Z, Hrubes J, James D, Jeltema T, Kuehn K, Kuropatkin N, Lima M, Lin H, Lee A, Leitch E, Luong-Van D, Maia M, Manzotti A, Marrone D, Marshall J, Martini P, McMahon J, Melchior P, Menanteau F, Meyer S, Mocanu L, Mohr J, Natoli T, Ogando R, Padin S, Plazas A, Pryke C, Romer A, Roodman A, Ruhl J, Rykoff E, Sanchez E, Scarpine V, Schaffer K, Schindler R, Sevilla-Noarbe I, Shirokoff E, Smith M, Smith R, Soares-Santos M, Sobreira F, Staniszewski Z, Stark A, Story K, Suchyta E, Swanson M, Tarle G, Thomas D, Vanderlinde K, Vieira J, Vikram V, Walker A, Weller J, Williamson R, Wu W, Zahn O. Dark Energy Survey Year 1 Results: Cross-correlation between Dark Energy Survey Y1 galaxy weak lensing and South Pole Telescope
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CMB weak lensing. Int J Clin Exp Med 2019. [DOI: 10.1103/physrevd.100.043517] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
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21
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Luo Y, Feng BF, Wei DC, Li MC, Han YL, Zhao JH, Lin YH, Li Q, Hou Z, Zhuang HY, Jiang YG. [Derepression of CXCR7 indicates resistance to enzalutamide in castration resistant prostate cancer]. Zhonghua Yi Xue Za Zhi 2019; 99:1237-1240. [PMID: 31060163 DOI: 10.3760/cma.j.issn.0376-2491.2019.16.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/09/2023]
Abstract
Objective: To investigate the effect of the derepression of chemokine receptor-7 (CXCR7) in prostatic tissues from patients with Castration Resistant Prostate Cancer (CRPC) on the resistance to enzalutamide (Enza). Methods: During the period of January 2015 to December 2017 all CRPC cases who underwent radical radiotherapy or androgen deprivation therapy (ADT) were evaluated. After prostatic puncture biopsy, the tissues were treated for immunostaining with CXCR7. Cox proportional hazard modeling and Kaplan-Meier analysis were used to determine PSA Progression-Free Survival (PSAP-FS) and Clinical or Radiographic Progression-Free Survival (CRP-FS) in the cohort. At last, PSA response rates and progression outcomes in CXCR7 negative cases and CXCR7 positive cases were analyzed. Results: Total 39 CRPC patients were enrolled in this study. And 23 cases derepress CXCR7, 16 cases negatively express CXCR7. The median follow-up duration was 12 months (range: 6-18) in the cohort. Chi-square analysis confirmed that PSA response rates after Enza treatment were significantly associated with CXCR7 derepression (χ(2)=22.129, P=0.000 06). Compared with CXCR7 positive expression group, CXCR7 negative expression group displayed improved median PSAP-FS (4.4 mon vs 11.7 mon, P=0.040 8) and CRP-FS (5.2 mon vs 13.1 mon, P=0.036 2) after Enza treatment. Conclusion: Derepression of CXCR7 in CRPC patients may be associated with resistance to enzalutamide. This protein may be novel target for treatment of CRPC.
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Affiliation(s)
- Y Luo
- Department of Urology, Beijing Anzhen Hospital, Capital Medical University, Beijing 100029, China
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22
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Li S, Wang K, Hou Z, Yang J, Ren W, Gao S, Meng F, Wu P, Liu B, Liu J, Yan J. OC-0495 Use of radiomics in the recurrence patterns after IMRT for head and neck cancer: a preliminary study. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)30915-6] [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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23
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Li S, Hou Z, Wang K, Yang J, Ren W, Gao S, Meng F, Wu P, Liu B, Liu J, Yan J. PO-121 Use of radiomics in the recurrence patterns after IMRT for Head and Neck cancer: a preliminary study. Radiother Oncol 2019. [DOI: 10.1016/s0167-8140(19)30287-7] [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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Ou F, Hou Z, Miao T, Xiao D, Wu X. A New Stress-Released Structure to Improve the Temperature Stability of the Butterfly Vibratory Gyroscope. Micromachines (Basel) 2019; 10:mi10020082. [PMID: 30682794 PMCID: PMC6412990 DOI: 10.3390/mi10020082] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 12/27/2018] [Revised: 01/18/2019] [Accepted: 01/21/2019] [Indexed: 11/16/2022]
Abstract
This paper is devoted to discussing the influence of thermal stress on the performance of the Butterfly Vibratory Gyroscope (BFVG). In many gyroscopes, due to the material properties and the fabrication processes, the deformation caused by residual stress or thermal mechanical stress is of great concern since it directly affects the performance. Here, a new stress-released structure was proposed to reduce the deformation to improve BFVG's performance considering the symmetry of the electrode and the miniaturization of the structure. Its dimensional parameters relate to the effect of thermal stress release and the stiffness characteristics of the BFVG's oblique beam. The single parameter analysis method was used to explore the influence of the parameters on the effect of thermal stress release to guide the optimal size of the final design. The effect of thermal stress release in the BFVG at the full range temperature was also tested after the fabrication. The results showed that the influence of thermal stress on the BFVG's performance effectively reduced.
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Affiliation(s)
- Fenlan Ou
- College of Intelligence Science and Engineering, National University of Defense Technology, Changsha 410073, China.
| | - Zhanqiang Hou
- College of Intelligence Science and Engineering, National University of Defense Technology, Changsha 410073, China.
| | - Tongqiao Miao
- College of Intelligence Science and Engineering, National University of Defense Technology, Changsha 410073, China.
| | - Dingbang Xiao
- College of Intelligence Science and Engineering, National University of Defense Technology, Changsha 410073, China.
| | - Xuezhong Wu
- College of Intelligence Science and Engineering, National University of Defense Technology, Changsha 410073, China.
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25
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Li Q, Xiao D, Zhou X, Xu Y, Zhuo M, Hou Z, He K, Zhang Y, Wu X. 0.04 degree-per-hour MEMS disk resonator gyroscope with high-quality factor (510 k) and long decaying time constant (74.9 s). Microsyst Nanoeng 2018; 4:32. [PMID: 31057920 PMCID: PMC6240575 DOI: 10.1038/s41378-018-0035-0] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 06/02/2018] [Revised: 08/06/2018] [Accepted: 09/04/2018] [Indexed: 05/02/2023]
Abstract
The disk resonator gyroscope is an attractive candidate for high-performance MEMS gyroscopes. This gyroscope consists of a sensor and readout electronics, and the characteristics of the sensor directly determine the performance. For the sensor, a high-quality factor and long decaying time constant are the most important characteristics required to achieve high performance. We report a disk resonator gyroscope with a measured quality factor of 510 k and decaying time constant of 74.9 s, which is a record for MEMS silicon disk resonator gyroscopes, to the best of our knowledge. To improve the quality factor of the DRG, the quality factor improvement mechanism is first analyzed, and based on this mechanism two stiffness-mass decoupled methods, i.e., spoke length distribution optimization and lumped mass configuration design, are proposed and demonstrated. A disk resonator gyroscope prototype is fabricated based on these design strategies, and the sensor itself shows an angle random walk as low as 0.001°/√h, demonstrating true potential to achieve navigation-grade performance. The gyroscope with readout electronics shows an angle random walk of 0.01°/√h and a bias instability of 0.04°/h at room temperature without compensation, revealing that the performance of the gyroscope is severely limited by the readout electronics, which should be further improved. We expect that the quality factor improvement methods can be used in the design of other MEMS gyroscopes and that the newly designed DRG can be further improved to achieve navigation-grade performances for high-end industrial, transportation, aerospace, and automotive applications.
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Affiliation(s)
- Qingsong Li
- College of Intelligence Science, National University of Defense Technology, Changsha, 410073 China
| | - Dingbang Xiao
- College of Intelligence Science, National University of Defense Technology, Changsha, 410073 China
- Laboratory of Science and Technology on Integrated Logistics Support, National University of Defense Technology, Changsha, 410073 China
| | - Xin Zhou
- College of Intelligence Science, National University of Defense Technology, Changsha, 410073 China
| | - Yi Xu
- College of Intelligence Science, National University of Defense Technology, Changsha, 410073 China
| | - Ming Zhuo
- College of Intelligence Science, National University of Defense Technology, Changsha, 410073 China
| | - Zhanqiang Hou
- College of Intelligence Science, National University of Defense Technology, Changsha, 410073 China
- Laboratory of Science and Technology on Integrated Logistics Support, National University of Defense Technology, Changsha, 410073 China
| | - Kaixuan He
- State Key Laboratory of ASIC and System, School of Microelectronics, Fudan University, Shanghai, 200433 China
- East China Institute of Photo-Electron IC, Bengbu, 233042 China
| | - Yongmeng Zhang
- College of Intelligence Science, National University of Defense Technology, Changsha, 410073 China
| | - Xuezhong Wu
- College of Intelligence Science, National University of Defense Technology, Changsha, 410073 China
- Laboratory of Science and Technology on Integrated Logistics Support, National University of Defense Technology, Changsha, 410073 China
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Hou Z, Wan S, Li S, Wang K, Liu J, Yan J, Liu B, Yang Y. Radiomics Analysis Using Contrast-Enhanced CT: Predict Treatment Response to Pulsed Low Dose Rate Radiation Therapy in Gastric Carcinoma with Peritoneal Cavity Metastasis. Int J Radiat Oncol Biol Phys 2018. [DOI: 10.1016/j.ijrobp.2018.07.713] [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: 11/17/2022]
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27
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Ou F, Hou Z, Wu X, Xiao D. Analysis and Design of a Polygonal Oblique Beam for the Butterfly Vibratory Gyroscope with Improved Robustness to Fabrication Imperfections. Micromachines (Basel) 2018; 9:E198. [PMID: 30424131 PMCID: PMC6187702 DOI: 10.3390/mi9050198] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 03/03/2018] [Revised: 03/26/2018] [Accepted: 04/04/2018] [Indexed: 11/16/2022]
Abstract
This paper focuses on structural optimization of a Butterfly vibratory gyroscope (BFVG). An oblique suspension beam adopting polygonal cross-section is proposed in order to enhance the sensitivity and robustness. The operation principles of the BFVG are introduced. The suspension beam, which was found to be the key component, is selectively stressed. Varying cross sections of the suspension beam, including parallelogram, pentagon, hexagon, platform of pentagon, L-shaped and convex shapes are compared with each other. In particular, in order to show the advantages of the proposed polygonal cross-section, the convex cross-section is used as a reference. The influence of fabrication imperfections, which includes alignment error, silicon thickness error, etching depth error, upper width error, bottom width error and deep reactive-ion etching (DRIE) verticality error, on the oblique beam's spindle azimuth angle of the two cross-sections is analyzed. Further, the quadrature error of two cross-sections with a fabrication defect is analyzed. The theoretical arithmetic results suggest that a polygonal cross-section beam is much more stable than a convex cross-section beam in most cases. The robustness of the fabrication imperfection is improved nine-fold and the quadrature error due to fabrication defect is reduced by 70 percent with a polygonal cross-section. It could be a better candidate for BFVG's oblique beam, which would provide a gyroscope with good robustness and repeatability.
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Affiliation(s)
- Fenlan Ou
- College of Intelligence Science and Engineering, National University of Defense Technology, Changsha 410073, China.
| | - Zhanqiang Hou
- College of Intelligence Science and Engineering, National University of Defense Technology, Changsha 410073, China.
| | - Xuezhong Wu
- College of Intelligence Science and Engineering, National University of Defense Technology, Changsha 410073, China.
| | - Dingbang Xiao
- College of Intelligence Science and Engineering, National University of Defense Technology, Changsha 410073, China.
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Xu X, Xiao D, Li W, Xu Q, Hou Z, Wu X. A Dual-Butterfly Structure Gyroscope. Sensors (Basel) 2017; 17:s17122870. [PMID: 29232899 PMCID: PMC5751678 DOI: 10.3390/s17122870] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 10/29/2017] [Revised: 11/29/2017] [Accepted: 12/06/2017] [Indexed: 11/24/2022]
Abstract
This paper reports a dual-butterfly structure gyroscope based on the traditional butterfly structure. This novel structure is composed of two butterfly structures, each of which contains a main vibrational beam, four proof masses, and a coupling mechanism. The coupling mechanism in this proposed structure couples the two single butterfly structures and keeps the driving mode phases of the two single butterfly gyroscopes exactly opposite, increasing the double difference of traditional butterfly gyroscopes to a quad difference, which has the potential advantage of improving bias instability and g-sensitivity. The gyroscope was fabricated using a standard microfabrication method and tested in laboratory conditions. The experimental results show a Q-factor of 10,967 in driving mode and there were two peaks in the frequency responses curve of sensing direction due to unavoidable fabrication errors. Scale factor and bias instability were also measured, reaching a scale factor of 10.9 mV/°/s and a bias instability of 10.7°/h, according to the Allan Variance curve.
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Affiliation(s)
- Xiangming Xu
- College of Mechatronics Engineering and Automation, National University of Defense Technology, Changsha 410073, China.
| | - Dingbang Xiao
- College of Mechatronics Engineering and Automation, National University of Defense Technology, Changsha 410073, China.
| | - Wenyin Li
- College of Mechatronics Engineering and Automation, National University of Defense Technology, Changsha 410073, China.
| | - Qiang Xu
- College of Mechatronics Engineering and Automation, National University of Defense Technology, Changsha 410073, China.
| | - Zhanqiang Hou
- College of Mechatronics Engineering and Automation, National University of Defense Technology, Changsha 410073, China.
| | - Xuezhong Wu
- College of Mechatronics Engineering and Automation, National University of Defense Technology, Changsha 410073, China.
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Giovannetti E, Zucali PA, Assaraf YG, Funel N, Gemelli M, Stark M, Thunnissen E, Hou Z, Muller IB, Struys EA, Perrino M, Jansen G, Matherly LH, Peters GJ. Role of proton-coupled folate transporter in pemetrexed resistance of mesothelioma: clinical evidence and new pharmacological tools. Ann Oncol 2017; 28:2725-2732. [PMID: 28945836 PMCID: PMC5808668 DOI: 10.1093/annonc/mdx499] [Citation(s) in RCA: 34] [Impact Index Per Article: 4.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/27/2022] Open
Abstract
BACKGROUND Thymidylate synthase (TS) has a predictive role in pemetrexed treatment of mesothelioma; however, additional chemoresistance mechanisms are poorly understood. Here, we explored the role of the reduced-folate carrier (RFC/SLC19A1) and proton-coupled folate transporter (PCFT/SLC46A1) in antifolate resistance in mesothelioma. PATIENTS AND METHODS PCFT, RFC and TS RNA and PCFT protein levels were determined by quantitative RT-PCR of frozen tissues and immunohistochemistry of tissue-microarrays, respectively, in two cohorts of pemetrexed-treated patients. Data were analyzed by t-test, Fisher's/log-rank test and Cox proportional models. The contribution of PCFT expression and PCFT-promoter methylation to pemetrexed activity were evaluated in mesothelioma cells and spheroids, through 5-aza-2'-deoxycytidine-mediated demethylation and siRNA-knockdown. RESULTS Pemetrexed-treated patients with low PCFT had significantly lower rates of disease control, and shorter overall survival (OS), in both the test (N = 73, 11.3 versus 20.1 months, P = 0.01) and validation (N = 51, 12.6 versus 30.3 months, P = 0.02) cohorts. Multivariate analysis confirmed PCFT-independent prognostic role. Low-PCFT protein levels were also associated with shorter OS. Patients with both low-PCFT and high-TS levels had the worst prognosis (OS, 5.5 months), whereas associations were neither found for RFC nor in pemetrexed-untreated patients. PCFT silencing reduced pemetrexed sensitivity, whereas 5-aza-2'-deoxycytidine overcame resistance. CONCLUSIONS These findings identify for the first time PCFT as a novel mesothelioma prognostic biomarker, prompting prospective trials for its validation. Moreover, preclinical data suggest that targeting PCFT-promoter methylation might eradicate pemetrexed-resistant cells characterized by low-PCFT expression.
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Affiliation(s)
- E Giovannetti
- Department of Medical Oncology, VU University Medical Center, Cancer Center Amsterdam, Amsterdam, The Netherlands; Cancer Pharmacology Lab, AIRC Start-Up Unit, Department of Translational Research and The New Technologies in Medicine and Surgery, University of Pisa, Pisa
| | - P A Zucali
- Department of Oncology, University of Milan, Humanitas Clinical and Research Hospital, Rozzano (Milan), Italy
| | - Y G Assaraf
- Department of Biology, Fred Wyszkowski Cancer Research Laboratory, Technion-Institute of Technology, Haifa, Israel
| | - N Funel
- Cancer Pharmacology Lab, AIRC Start-Up Unit, Department of Translational Research and The New Technologies in Medicine and Surgery, University of Pisa, Pisa
| | - M Gemelli
- Department of Oncology, University of Milan, Humanitas Clinical and Research Hospital, Rozzano (Milan), Italy
| | - M Stark
- Department of Biology, Fred Wyszkowski Cancer Research Laboratory, Technion-Institute of Technology, Haifa, Israel
| | - E Thunnissen
- Department of Pathology, VU University Medical Center, Amsterdam, The Netherlands
| | - Z Hou
- Barbara Ann Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, USA
| | - I B Muller
- Department of Clinical Chemistry, VU University Medical Center, Amsterdam
| | - E A Struys
- Department of Clinical Chemistry, VU University Medical Center, Amsterdam
| | - M Perrino
- Department of Oncology, University of Milan, Humanitas Clinical and Research Hospital, Rozzano (Milan), Italy
| | - G Jansen
- Amsterdam Rheumatology and Immunology Center - Location VUmc, Amsterdam, The Netherlands
| | - L H Matherly
- Barbara Ann Karmanos Cancer Institute, Wayne State University School of Medicine, Detroit, USA
| | - G J Peters
- Department of Medical Oncology, VU University Medical Center, Cancer Center Amsterdam, Amsterdam, The Netherlands.
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Miao T, Xiao D, Li Q, Hou Z, Wu X. A 4 mm² Double Differential Torsional MEMS Accelerometer Based on a Double-Beam Configuration. Sensors (Basel) 2017; 17:s17102264. [PMID: 28974039 PMCID: PMC5677433 DOI: 10.3390/s17102264] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 08/28/2017] [Revised: 09/27/2017] [Accepted: 09/27/2017] [Indexed: 11/16/2022]
Abstract
This paper reports the design and simulation of a 4 mm2 double differential torsional MEMS accelerometer based on a double-beam configuration. Based on the structure of conventional torsional accelerometers, normally composed of one pair of proof masses and one torsional beam, this work explores the double differential configuration: a torsional accelerometer with two pairs of unbalanced proof masses rotating in reverse. Also, the torsional beam is designed as a double-beam structure, which is a symmetrical structure formed by two torsional beams separated by a certain distance. The device area of the novel accelerometer is more than 50 times smaller than that of a traditional double differential torsional MEMS accelerometer. The FEM simulation results demonstrate that the smaller device does not sacrifice other specifications, such as mechanical sensitivity, nonlinearity and temperature robustness. The mechanical sensitivity and nonlinearity of a ±15 g measuring range is 59.4 fF/g and 0.88%, respectively. Compared with traditional single-beam silicon structures, the novel structure can achieve lower maximum principle stress in critical regions and reduce the possibility of failure when high-g acceleration loading is applied along all three axes. The mechanical noise equivalent acceleration is about 0.13 mg/Hz in the theoretical calculations and the offset temperature coefficient is 0.25 mg/℃ in the full temperature range of −40 ℃ to 60 ℃.
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Affiliation(s)
- Tongqiao Miao
- College of Mechatronics Engineering and Automation, National University of DefenseTechnology, Changsha 410073, China.
| | - Dingbang Xiao
- College of Mechatronics Engineering and Automation, National University of DefenseTechnology, Changsha 410073, China.
| | - Qingsong Li
- College of Mechatronics Engineering and Automation, National University of DefenseTechnology, Changsha 410073, China.
| | - Zhanqiang Hou
- College of Mechatronics Engineering and Automation, National University of DefenseTechnology, Changsha 410073, China.
| | - Xuezhong Wu
- College of Mechatronics Engineering and Automation, National University of DefenseTechnology, Changsha 410073, China.
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Luo Y, Li MC, Qi HZ, Zhao JH, Han YL, Lin YH, Hou Z, Jiang YG. [Long-term oncologic outcomes of localized high-risk prostate cancer undergoing brachytherapy combined with external-beam radiation therapy and maximal androgen blockade]. Zhonghua Yi Xue Za Zhi 2017; 97:2028-2032. [PMID: 28763873 DOI: 10.3760/cma.j.issn.0376-2491.2017.26.003] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [MESH Headings] [Subscribe] [Scholar Register] [Indexed: 06/07/2023]
Abstract
Objective: To investigate the oncologic outcome and PSA kinetics of localized high-risk prostate cancer (PCa) patients treated with combination strategy of radiation therapy (RT) and maximal androgen blockade (MAB). Methods: We retrospectively reviewed the clinical data of 320 localized PCa patients undergoing RT+ MAB from 2001 to 2015. And radiation treatment protocol consisted of permanent prostate brachytherapy (PPB) at 110 Gy and EBRT at 45 Gy/23 fractions. Results: The median follow-up time was 90 (range: 12-186) months. And 117 (36.6%) cases underwent MAB + external-beam radiotherapy (EBRT), and other 203 (63.4%) cases received MAB+ EBRT+ PPB. Multivariate Cox regression analyses showed that PSA kinetics were positive indicators of oncologic outcomes. Furthermore, PSA kinetics were aberrantly improved by supplemental PPB to MAB+ EBRT as following, PSA nadir (1.3±0.7)μg/L vs(0.11±0.06)μg/L, time of PSA decrease to nadir (7.5±1.8)months vs (3.2±2.1)months, PSA doubling time (15.6±4.2)months vs (22.6±6.1)months, PSA decreasing amplitude (84.6±6.2)%vs(95.8±3.4)%. Additionally, the median time of several important oncologic events in MAB+ EBRT+ PPB group were also prolonged than that in MAB+ EBRT group as following, overall survival (12.3 years vs 9.1 years, P<0.001), biochemical recurrence-free survival (9.8 years vs 6.5 years, P<0.001), skeletal-related event (10.4years vs 8.2 years, P<0.001), and cytotoxic chemotherapy (11.6 years vs 8.8 years, P=0.007). Conclusion: MAB+ EBRT+ PPB is extremely effective combination strategy for localized high-risk PCa patients, and PPB plays the important synergistic role in improving PSA kinetics, which are independent predictor for oncologic outcomes.
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Affiliation(s)
- Y Luo
- Department of Urology, Affiliated Beijing Anzhen hospital of Capital Medical University, Beijing 100029, China
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Abstract
PurposeAbortive cryptophthalmos is a rare congenital eyelid anomaly with poor prognosis for vision and cosmesis. The study aims to present its varied manifestations and surgical outcomes.Patients and methodsThe medical records of patients with abortive cryptophthalmos treated at the Oculoplastic Clinic of Beijing Tongren Hospital between January 2004 and May 2016 were reviewed. Early surgical intervention was performed when exposure keratopathy occurs. Upper eyelid and superior fornix were mainly reconstructed with sliding myocutaneous flap and scleral and amniotic grafts. Post-operative upper eyelid contour, recurrence of symblepharon, and ability to retain prosthesis were evaluated.ResultsThe study included 41 eyes of 28 patients. The median age at first presentation was 5 years (ranging from 1 month to 58 years). The majority (79%) with concurrent craniofacial abnormalities tended to be associated with more severe cryptophthalmos. Nine eyes of 9 patients had recurrence of symblepharon. Acceptable functional and cosmetic outcomes were achieved in 20 of the 24 patients receiving repair procedures during the follow-up period.ConclusionOne-stage reconstruction of eyelid and fornix with scleral and amniotic grafts is an effective strategy to correct abortive cryptophthalmos.
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Affiliation(s)
- J Ding
- Department of Ophthalmology, Beijing Tongren Hospital, Beijing Ophthalmology and Visual Science Key Lab, Capital Medical University, Beijing, China
| | - Z Hou
- Department of Ophthalmology, Beijing Tongren Hospital, Beijing Ophthalmology and Visual Science Key Lab, Capital Medical University, Beijing, China
| | - Y Li
- Department of Ophthalmology, Beijing Tongren Hospital, Beijing Ophthalmology and Visual Science Key Lab, Capital Medical University, Beijing, China
| | - N Lu
- Department of Ophthalmology, Beijing Tongren Hospital, Beijing Ophthalmology and Visual Science Key Lab, Capital Medical University, Beijing, China
| | - D Li
- Department of Ophthalmology, Beijing Tongren Hospital, Beijing Ophthalmology and Visual Science Key Lab, Capital Medical University, Beijing, China
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Hou Z, Wang Z, Jiang W, Yin Y, Yue Y, Zhang Y, Yuan Y. Pretreatment Predictors of Early Response Revealed by Quantitative Cerebral Blood Flow in Major Depressive Disorder. Eur Psychiatry 2017. [DOI: 10.1016/j.eurpsy.2017.01.2221] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/17/2022] Open
Abstract
ObjectiveThe potential pattern of regional cerebral blood flow (rCBF) in major depressive disorder (MDD) underlies different response to antidepressants medication remain unclear. This study aimed to investigate the differences of rCBF between patients with different treatment response.MethodsEighty MDD patients [(44 treatment-responsive depression (RD) and 36 non-responding depression (NRD)] and 42 healthy controls (HC) underwent pulsed arterial spin labeling (PASL) scans in magnetic resonance imaging and clinical estimates. The exact rCBF values of each groups were obtained via quantification evaluation.ResultsCompared to NRD, the RD patients showed decreased rCBF values in frontal sensorimotor network (i.e. left paracentral lobule, left medial frontal gyrus, right superior frontal gyrus and right middle frontal gyrus), and further receiver operating curve (ROC) analyses demonstrated that the altered rCBF in these four regions exhibited outstanding performance on distinguishing NRD from RD. The NRD also exhibited reduced rCBF in bilateral cerebellum posterior lobe and right middle occipital gyrus and elevated rCBF in right postcentral gyrus and right middle frontal gyrus as compared to HC.ConclusionsThe decreased rCBF in frontal sensorimotor network appeared to be distinct characteristics for NRD, and might be severed as promising neuroimaging markers to differentiate depressed patients with weak early response to antidepressant medication. These findings expand our understanding of neural substrate underlying the antidepressant efficacy.Disclosure of interestThe authors have not supplied their declaration of competing interest.
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Wang D, Liao B, Zhang Q, Liu JS, Duan Z, Hou Z, Ning Z. Gene Polymorphisms are Associated with Eggshell Ultrastructure Organization in Hens. ACTA ACUST UNITED AC 2017. [DOI: 10.1590/1806-9061-2016-0255] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/22/2022]
Affiliation(s)
- D Wang
- China Agricultural University, China
| | - B Liao
- Shenyang Institute of Technology, China
| | - Q Zhang
- China Agricultural University, China
| | - JS Liu
- China Agricultural University, China
| | - Z Duan
- China Agricultural University, China
| | - Z Hou
- China Agricultural University, China
| | - Z Ning
- China Agricultural University, China
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Jia H, Song L, Cong Q, Wang J, Xu H, Chu Y, Li Q, Zhang Y, Zou X, Zhang C, Chin YE, Zhang X, Li Z, Zhu K, Wang B, Peng H, Hou Z. The LIM protein AJUBA promotes colorectal cancer cell survival through suppression of JAK1/STAT1/IFIT2 network. Oncogene 2016; 36:2655-2666. [DOI: 10.1038/onc.2016.418] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/24/2016] [Revised: 09/12/2016] [Accepted: 09/28/2016] [Indexed: 12/13/2022]
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Da F, Yao L, Su Z, Hou Z, Li Z, Xue X, Meng J, Luo X. Antisense locked nucleic acids targeting agrA inhibit quorum sensing and pathogenesis of community-associated methicillin-resistant Staphylococcus aureus. J Appl Microbiol 2016; 122:257-267. [PMID: 27718524 DOI: 10.1111/jam.13321] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/20/2016] [Revised: 09/16/2016] [Accepted: 10/03/2016] [Indexed: 11/30/2022]
Abstract
AIM Community-associated methicillin-resistant Staphylococcus aureus (CA-MRSA) is commonly associated with nonnosocomial skin and soft tissue infections due to its virulence, which is mainly controlled by the accessory gene regulator (agr) quorum sensing (QS) system. In this study (KFF)3 K peptide-conjugated locked nucleic acids (PLNAs) targeting agrA mRNA were developed to inhibit agr activity and arrest the pathogenicity of CA-MRSA. METHODS AND RESULTS Two PLNAs were designed, and synthesized, after predicting the secondary structure of agrA mRNA. The influence on bacterial growth was tested using a growth curve assay. RT-qPCR, haemolysis assay, lactate dehydrogenase release assay and chemotaxis assay were used to evaluate the effects of the PLNAs on inhibiting agr QS. A mouse skin infection model was employed to test the protective effect of the PLNAs in vivo. None of the PLNAs were found to be bacteriostatic or bactericidal in vitro. However, one PLNA, PLNA34, showed strong ability to suppress expression of agrA and the effector molecule RNAIII in USA300 LAC strain. Furthermore, PLNA34 inhibited the expression of virulence genes that are upregulated by agr, including hla, psmα, psmβ and pvl. The haemolytic activity of the supernatants from PLNA34-treated bacteria was also dramatically reduced, as well as the capacity to lyse and recruit neutrophils. Moreover, PLNA34 showed high levels of protection in the CA-MRSA mouse skin infection model. CONCLUSIONS The anti-agrA PLNA34 can effectively inhibit the agr QS and suppress CA-MRSA pathogenicity. SIGNIFICANCE AND IMPACT OF THE STUDY agrA is a promising target for the development of antisense oligonucleotides to block agr QS.
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Affiliation(s)
- F Da
- Department of Pharmacology, School of Pharmacy, Fourth Military Medical University, Xi'an, China
| | - L Yao
- Department of Medicinal Chemistry, School of Pharmacy, Fourth Military Medical University, Xi'an, China
| | - Z Su
- Department of Pharmacology, School of Pharmacy, Fourth Military Medical University, Xi'an, China
| | - Z Hou
- Department of Pharmacology, School of Pharmacy, Fourth Military Medical University, Xi'an, China
| | - Z Li
- Department of Pharmacology, School of Pharmacy, Fourth Military Medical University, Xi'an, China
| | - X Xue
- Department of Pharmacology, School of Pharmacy, Fourth Military Medical University, Xi'an, China
| | - J Meng
- Department of Pharmacology, School of Pharmacy, Fourth Military Medical University, Xi'an, China
| | - X Luo
- Department of Pharmacology, School of Pharmacy, Fourth Military Medical University, Xi'an, China
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Hou Z, Song X, Jiang W, Yue Y, Yin Y, Zhang Y, Liu Y, Yuan Y. Association analysis of imbalanced interhemispheric functional coordination and early therapeutic efficacy in major depressive disorder: Evidence from resting state fMRI. Eur Psychiatry 2016. [DOI: 10.1016/j.eurpsy.2016.01.048] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 10/21/2022] Open
Abstract
IntroductionEmerging evidences indicate that the alteration of interhemispheric functional coordination may be involved in the pathogenesis of major depressive disorder (MDD). In present study, we aim to explore the potential marker by using the voxel-mirrored homotopic connectivity (VMHC) approach, which may be contributing to predict the clinical prognosis in MDD.MethodsEighty-two MDD patients and 50 normal control (NC) subjects participated in this study. We divided the MDD group into unremitted and remitted group according to the reduction rate of Hamilton Rating Scale for Depression (HAMD) within 2 weeks.ResultsThe study detected significantly decreased VMHC in bilateral precuneus (pCu), inferior temporal gyrus (ITG) and increased VMHC in middle frontal gyrus (MFG) and caudate nucleus when compared remitted depression (RD) group to unremitted depression (URD) group. Meanwhile, when compared with NC group, the URD group presented reduced VMHC in bilateral cerebellum anterior lobe, thalamus and postcentral gyrus. Furthermore, the VHMC in media frontal gyrus, postcentral gyrus and precentral gyrus were significantly decreased in RD group. Correlation analysis suggested that reduced VMHC in bilateral pCu was negatively correlated with the baseline HAMD score of URD (r = −0.325, P = 0.041). Receiver operating characteristic (ROC) curve indicated that three regional VMHC changes could identify depressed patient with poorer treatment response: ITG [area under curve (AUC) = 0.699, P = 0.002, 95% CI = 0.586–0.812], MFG (AUC = 0.692, P = 0.003, 95% CI = 0.580–0.805), pCu (AUC = 0.714, P = 0.001, 95% CI = 0.603–0.825).ConclusionThe current study combined with previous evidence indicates that the subdued intrinsic interhemispheric functional connectivity might represents a novel neural trait involved in the pathophysiology of MDD.Disclosure of interestThe authors have not supplied their declaration of competing interest.
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Hou Z, Jiang W, Yue Y, Yin Y, Zhang Y, Sui Y, Yuan Y. Decreased interhemispheric functional coordination underlying the cognitive impairment in late-onset depression. Eur Psychiatry 2016. [DOI: 10.1016/j.eurpsy.2016.01.462] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/30/2022] Open
Abstract
BackgroundThe intuitive association between cognitive dysfunction in late onset depression (LOD) and the aberrant functional activity in the brain's default-mode network (DMN) has prompted interest in exploring the role of the DMN in LOD. The altered pattern of resting state voxel-mirrored homotopic connectivity (VMHC) in cognitive processes is not yet well understood in LOD.MethodsThe study was designed to examine the implicit coupling between the alteration of interhemispheric functional coordination and cognitive impairment in LOD. Thirty-one LOD patients and 37 matched healthy controls (HC) underwent neuropsychological tests and functional magnetic resonance imaging (fMRI) in this study.ResultsCompared to HC group, attenuated VMHC in superior frontal gyrus, superior temporal gyrus, posterior cerebellar lobe, postcentral and precentral gyrus was observed in LOD. Neuro-behavioral relevancy approach revealed that the imbalanced interhemispheric functional coordination in bilateral cerebellum was positively correlated with the performance of trail making test in LOD (r = 0.367, P = 0.040).ConclusionAltered linkage pattern of intrinsic homotopic connectivity and cognition was firstly investigated in LOD, and it would provide a novel clue to reveal the neural substrates underlying the cognitive dysfunction in LOD.Disclosure of interestThe authors have not supplied their declaration of competing interest.
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Story KT, Hanson D, Ade PAR, Aird KA, Austermann JE, J. A. Beall, Bender AN, Benson BA, Bleem LE, Carlstrom JE, Chang CL, Chiang HC, Cho HM, Citron R, Crawford TM, Crites AT, Haan TD, Dobbs MA, Everett W, Gallicchio J, Gao J, George EM, Gilbert A, Halverson NW, Harrington N, Henning JW, Hilton GC, Holder GP, Holzapfel WL, Hoover S, Hou Z, Hrubes JD, Huang N, Hubmayr J, Irwin KD, Keisler R, Knox L, Lee AT, Leitch EM, Li D, Liang C, Luong-Van D, McMahon JJ, Mehl J, Meyer SS, Mocanu L, Montroy TE, Natoli T, Nibarger JP, Novosad V, Padin S, Pryke C, Reichardt CL, Ruhl JE, Saliwanchik BR, Sayre JT, Schaffer KK, Smecher G, Stark AA, Tucker C, Vanderlinde K, Vieira JD, Wang G, Whitehorn N, Yefremenko V, Zahn O. A MEASUREMENT OF THE COSMIC MICROWAVE BACKGROUND GRAVITATIONAL LENSING POTENTIAL FROM 100 SQUARE DEGREES OF SPTPOL DATA. ACTA ACUST UNITED AC 2015. [DOI: 10.1088/0004-637x/810/1/50] [Citation(s) in RCA: 82] [Impact Index Per Article: 9.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Ni W, Li X, Hou Z, Zhang H, Qiu W, Wang W. Impact of cataract surgery on vision-related life performances: the usefulness of Real-Life Vision Test for cataract surgery outcomes evaluation. Eye (Lond) 2015; 29:1545-54. [PMID: 26272444 DOI: 10.1038/eye.2015.147] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/07/2015] [Accepted: 06/29/2015] [Indexed: 11/09/2022] Open
Abstract
PURPOSE Real-Life Vision Test (RLVT) is a newly developed performance-based measures of functional vision. This present study is designed to determine whether it could be a meaningful assessment for cataract surgery outcomes evaluation. PATIENTS AND METHODS Age-related cataract patients (56) who scheduled for bilateral cataract surgery and 44 age-matched controls were evaluated by four types of measurements: (1) demographic, medical, cognitive and depressive evaluation, and the reaction time testing; (2) clinical measures (visual acuity, contrast sensitivity, stereopsis, and color perception); (3) the 25-item National Eye Institute's Visual Functioning Questionnaire (NEI-VFQ); (4) the RLVT. Spearman's coefficients and multiple regression analysis were conducted to investigate the relationship among RLVT, clinical measures, and self-report assessment of visual function. RESULTS The results of RLVT, clinical measures, and NEI-VFQ total scores were improved significantly after cataract surgery. There were no differences between control subjects and post-surgery patients with respect to NEI-VFQ-25 total scores, self-rating depression scale scores and three tasks of RLVT. Change of RLVT was significantly associated with the change of clinical measures in the cataract group. Multiple regression analysis demonstrated that change of distance, intermediate, and near visual acuity, and binocular contrast sensitivity were significant predictors of improvements of RLVT. CONCLUSIONS Cataract surgery could improve real-world visual ability effectively for cataract patients. Our study highlights the potential usefulness of RLVT as an adjunct to the current outcomes evaluation system for cataract surgery. The use of RLVT combined with clinical and self-survey methods may be the comprehensive strategy to manifest the impact of cataract surgery on patients' overall vision-related quality of life.
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Affiliation(s)
- W Ni
- Department of Ophthalmology, Peking University Third Hospital, Beijing, China.,Key Laboratory of Vision Loss and Restoration, Ministry of Education, Beijing, China
| | - X Li
- Department of Ophthalmology, Peking University Third Hospital, Beijing, China.,Key Laboratory of Vision Loss and Restoration, Ministry of Education, Beijing, China
| | - Z Hou
- Department of Ophthalmology, Peking University Third Hospital, Beijing, China.,Key Laboratory of Vision Loss and Restoration, Ministry of Education, Beijing, China
| | - H Zhang
- Research Center of Clinical Epidemiology, Peking University Third Hospital, Beijing, China
| | - W Qiu
- Department of Ophthalmology, Peking University Third Hospital, Beijing, China.,Key Laboratory of Vision Loss and Restoration, Ministry of Education, Beijing, China
| | - W Wang
- Department of Ophthalmology, Peking University Third Hospital, Beijing, China.,Key Laboratory of Vision Loss and Restoration, Ministry of Education, Beijing, China
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Keisler R, Hoover S, Harrington N, Henning JW, Ade PAR, Aird KA, Austermann JE, Beall JA, Bender AN, Benson BA, Bleem LE, Carlstrom JE, Chang CL, Chiang HC, Cho HM, Citron R, Crawford TM, Crites AT, de Haan T, Dobbs MA, Everett W, Gallicchio J, Gao J, George EM, Gilbert A, Halverson NW, Hanson D, Hilton GC, Holder GP, Holzapfel WL, Hou Z, Hrubes JD, Huang N, Hubmayr J, Irwin KD, Knox L, Lee AT, Leitch EM, Li D, Luong-Van D, Marrone DP, McMahon JJ, Mehl J, Meyer SS, Mocanu L, Natoli T, Nibarger JP, Novosad V, Padin S, Pryke C, Reichardt CL, Ruhl JE, Saliwanchik BR, Sayre JT, Schaffer KK, Shirokoff E, Smecher G, Stark AA, Story KT, Tucker C, Vanderlinde K, Vieira JD, Wang G, Whitehorn N, Yefremenko V, Zahn O. MEASUREMENTS OF SUB-DEGREEB-MODE POLARIZATION IN THE COSMIC MICROWAVE BACKGROUND FROM 100 SQUARE DEGREES OF SPTPOL DATA. ACTA ACUST UNITED AC 2015. [DOI: 10.1088/0004-637x/807/2/151] [Citation(s) in RCA: 111] [Impact Index Per Article: 12.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Baxter EJ, Keisler R, Dodelson S, Aird KA, Allen SW, Ashby MLN, Bautz M, Bayliss M, Benson BA, Bleem LE, Bocquet S, Brodwin M, Carlstrom JE, Chang CL, Chiu I, Cho HM, Clocchiatti A, Crawford TM, Crites AT, Desai S, Dietrich JP, de Haan T, Dobbs MA, Foley RJ, Forman WR, George EM, Gladders MD, Gonzalez AH, Halverson NW, Harrington NL, Hennig C, Hoekstra H, Holder GP, Holzapfel WL, Hou Z, Hrubes JD, Jones C, Knox L, Lee AT, Leitch EM, Liu J, Lueker M, Luong-Van D, Mantz A, Marrone DP, McDonald M, McMahon JJ, Meyer SS, Millea M, Mocanu LM, Murray SS, Padin S, Pryke C, Reichardt CL, Rest A, Ruhl JE, Saliwanchik BR, Saro A, Sayre JT, Schaffer KK, Shirokoff E, Song J, Spieler HG, Stalder B, Stanford SA, Staniszewski Z, Stark AA, Story KT, van Engelen A, Vanderlinde K, Vieira JD, Vikhlinin A, Williamson R, Zahn O, Zenteno A. A MEASUREMENT OF GRAVITATIONAL LENSING OF THE COSMIC MICROWAVE BACKGROUND BY GALAXY CLUSTERS USING DATA FROM THE SOUTH POLE TELESCOPE. ACTA ACUST UNITED AC 2015. [DOI: 10.1088/0004-637x/806/2/247] [Citation(s) in RCA: 57] [Impact Index Per Article: 6.3] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Crites AT, Henning JW, Ade PAR, Aird KA, Austermann JE, Beall JA, Bender AN, Benson BA, Bleem LE, Carlstrom JE, Chang CL, Chiang HC, Cho HM, Citron R, Crawford TM, Haan TD, Dobbs MA, Everett W, Gallicchio J, Gao J, George EM, Gilbert A, Halverson NW, Hanson D, Harrington N, Hilton GC, Holder GP, Holzapfel WL, Hoover S, Hou Z, Hrubes JD, Huang N, Hubmayr J, Irwin KD, Keisler R, Knox L, Lee AT, Leitch EM, Li D, Liang C, Luong-Van D, McMahon JJ, Mehl J, Meyer SS, Mocanu L, Montroy TE, Natoli T, Nibarger JP, Novosad V, Padin S, Pryke C, Reichardt CL, Ruhl JE, Saliwanchik BR, Sayre JT, Schaffer KK, Smecher G, Stark AA, Story KT, Tucker C, Vanderlinde K, Vieira JD, Wang G, Whitehorn N, Yefremenko V, Zahn O. MEASUREMENTS OF E-MODE POLARIZATION AND TEMPERATURE-E-MODE CORRELATION IN THE COSMIC MICROWAVE BACKGROUND FROM 100 SQUARE DEGREES OF SPTPOL DATA. ACTA ACUST UNITED AC 2015. [DOI: 10.1088/0004-637x/805/1/36] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/11/2022]
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Luo C, Ji X, Fan J, Hou Z, Wang T, Wu B, Ni C. Annexin A5 promotes macrophage activation and contributes to pulmonary fibrosis induced by silica particles. Toxicol Ind Health 2015; 32:1628-38. [PMID: 25757482 DOI: 10.1177/0748233715572744] [Citation(s) in RCA: 7] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/17/2022]
Abstract
OBJECTIVE To investigate the contributions and underlying molecular mechanisms of annexin A5 toward silica-induced pulmonary fibrosis. METHODS Male C57BL/6 mice were randomly divided into three groups and instilled intratracheally with silica, saline, or air. Mice were euthanized at 3, 7, 14, or 28 days following treatment. Annexin A5 levels in serum and lung tissues were detected by enzyme-linked immunosorbant assay (ELISA) assays or Western blots. The association of annexin A5 levels with silica-induced lung fibrosis was further investigated in the macrophage cell line, RAW264.7. Following exposure of these cells to silica at a concentration of 200 μg/ml for 6 or 12 h, the expression levels of transforming growth factor β1 (TGF-β1), interleukin 1α (IL-1α), Fas ligand (FasL), and their downstream targets were evaluated by Western blots. Furthermore, annexin A5 and FasL were knocked down by small interfering ribonucleic acid (siRNA) and TGF-β1 secretion into the cell culture medium was measured by ELISA assays or Western blots. RESULTS Mice treated with silica demonstrated lung fibrosis at 28 days following exposure, whereas, in controls, only mild and transient inflammation was evident at day 3 and day 7 postinstillation and was not present at day 14. Furthermore, silica-exposed mice exhibited significantly (p < 0.05) elevated levels of annexin A5 in serum and lung tissues, relative to control groups. Consistent with these findings, silica exposure of RAW264.7 cells for 6 or 12 h, led to an annexin A5-dependent increase in the expression levels of TGF-β1, IL-1α, FasL, and their downstream target molecules. These silica-induced changes were reversed by siRNA-mediated knockdown of annexin A5, but downregulation of FasL led to increased annexin A5 expression and reduced levels of TGF-β1, IL-1α, and FasL downstream target molecules. CONCLUSIONS These findings define a role of annexin A5 in promoting macrophage activation via Fas/FasL pathways in silica-induced lung fibrosis.
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Affiliation(s)
- C Luo
- Department of Occupational Medicine and Environmental Health, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China
| | - X Ji
- Department of Occupational Medicine and Environmental Health, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China
| | - J Fan
- Department of Occupational Medicine and Environmental Health, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China
| | - Z Hou
- Department of Occupational Medicine and Environmental Health, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China
| | - T Wang
- Department of Occupational Medicine and Environmental Health, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China
| | - B Wu
- Department of Occupational Medicine and Environmental Health, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China
| | - C Ni
- Department of Occupational Medicine and Environmental Health, School of Public Health, Nanjing Medical University, Nanjing, Jiangsu, People's Republic of China
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George EM, Reichardt CL, Aird KA, Benson BA, Bleem LE, Carlstrom JE, Chang CL, Cho HM, Crawford TM, Crites AT, de Haan T, Dobbs MA, Dudley J, Halverson NW, Harrington NL, Holder GP, Holzapfel WL, Hou Z, Hrubes JD, Keisler R, Knox L, Lee AT, Leitch EM, Lueker M, Luong-Van D, McMahon JJ, Mehl J, Meyer SS, Millea M, Mocanu LM, Mohr JJ, Montroy TE, Padin S, Plagge T, Pryke C, Ruhl JE, Schaffer KK, Shaw L, Shirokoff E, Spieler HG, Staniszewski Z, Stark AA, Story KT, van Engelen A, Vanderlinde K, Vieira JD, Williamson R, Zahn O. A MEASUREMENT OF SECONDARY COSMIC MICROWAVE BACKGROUND ANISOTROPIES FROM THE 2500 SQUARE-DEGREE SPT-SZ SURVEY. ACTA ACUST UNITED AC 2015. [DOI: 10.1088/0004-637x/799/2/177] [Citation(s) in RCA: 159] [Impact Index Per Article: 17.7] [Reference Citation Analysis] [What about the content of this article? (0)] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/12/2022]
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Reyes-Reyes A, Hou Z, van Mastrigt E, Horsten RC, de Jongste JC, Pijnenburg MW, Urbach HP, Bhattacharya N. Multicomponent gas analysis using broadband quantum cascade laser spectroscopy. Opt Express 2014; 22:18299-18309. [PMID: 25089450 DOI: 10.1364/oe.22.018299] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Abstract] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/03/2023]
Abstract
We present a broadband quantum cascade laser-based spectroscopic system covering the region between 850 and 1250 cm(-1). Its robust multipass cavity ensures a constant interaction length over the entire spectral region. The device enables the detection and identification of numerous molecules present in a complex gas mixture without any pre-treatment in two minutes. We demonstrate that we can detect sub-ppmv concentration of acetone in presence of 2% of water at the same wavenumber region.
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Yuan J, Wang B, Huang Z, Fan Y, Huang C, Hou Z. Comparisons of egg quality traits, egg weight loss and hatchability between striped and normal duck eggs. Br Poult Sci 2013; 54:265-9. [PMID: 23647192 DOI: 10.1080/00071668.2013.770449] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
Abstract
1. The egg quality of striped and normal duck eggs was compared to determine why striped eggs show decreased hatchability. A total of 430 eggs, obtained from a Pekin duck breeder flock aged 50-65 wks, were used in three experiments. The eggs were weighed and assigned randomly to measure egg quality traits, egg weight (EW) loss and hatchability during incubation. 2. There were no significant differences between egg types in terms of egg shape index, eggshell strength and thickness, albumen height, Haugh unit, yolk colour, weight of the eggshell with or without membranes, calcium, phosphorus, copper and manganese contents in the eggshell (with the inner and outer membranes or without the inner membrane), albumen weight, dry matter of albumen, crude protein (CP) of thick albumen and pH of the thick albumen. 3. The weight of eggshells with membranes, weight of thick albumen and CP of thin albumen in striped eggs were lower than those in normal eggs. 4. The thin albumen in striped eggs was heavier than that in normal eggs. The pH of the thin albumin in striped egg was significantly higher than that in normal eggs. 5. There were no significant differences in EW loss during incubation or duckling weight between striped and normal eggs. However, the hatchability of striped eggs was lower. 6. The lower weight of the eggshell inner membrane and thick albumen, lower CP content and higher pH in the thin albumen of striped eggs might contribute to lower hatchability.
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Affiliation(s)
- J Yuan
- State Key Laboratory of Animal Nutrition, College of Animal Science and Technology, China Agricultural University, Beijing, 10019, P.R. China.
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Zhang Z, Hou Z, Lin X, Teng G, Meng H, Zang F, Fang F, Liu S. Development of the fetal cerebral cortex in the second trimester: assessment with 7T postmortem MR imaging. AJNR Am J Neuroradiol 2013; 34:1462-7. [PMID: 23413246 DOI: 10.3174/ajnr.a3406] [Citation(s) in RCA: 34] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
BACKGROUND AND PURPOSE Few investigators have analyzed the fetal cerebral cortex with MR imaging of high magnetic strength. Our purpose was to document the sulcal development and obtain quantitative measurements of the fetal brain in the second trimester. MATERIALS AND METHODS The brains of 69 fetal specimens, with GA 12-22 weeks, were first scanned on a 7T MR imaging scanner. Then the sequential development of the different fissures and sulci was analyzed, and quantitative measurements of the cerebral cortex were obtained. RESULTS A new chronology of sulcal development during 12-22 weeks GA was summarized. Before 12 weeks, few sulci were present; by 16 weeks, many sulci were present. The 16th week could be considered the most intensive time point for sulcal emergence. Most sulci, except for the postcentral sulcus and intraparietal sulcus, were present by 22 weeks GA. Measurements of the fetal brains, each with different growth rates, linearly increased with GA, but no sexual dimorphisms or cerebral asymmetries were detected. CONCLUSIONS The second trimester is the most important phase, during which most sulci are present and can be clearly shown on 7T postmortem MR imaging. It is apparent that the specific time during which neuropathologic features of sulci appear, previously thought to be well understood, should be redefined. Quantitative data provide assistance in the precise understanding of the immature brain. The present results are valuable in anatomic education, research, and assessment of normal brain development in the uterus.
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Affiliation(s)
- Z Zhang
- Research Center for Sectional and Imaging Anatomy, Shandong University School of Medicine, Shandong, China
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Yue Y, Yuan Y, Hou Z, Jiang W, Bai F, Zhang Z. 2129 – Abnormal functional connectivity of amygdala in late onset depression was associated with cognitive deficits, but not with depressive severity. Eur Psychiatry 2013. [DOI: 10.1016/s0924-9338(13)77016-0] [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] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/26/2022] Open
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Hou Z, Fink RC, Black EP, Sugawara M, Zhang Z, Diez-Gonzalez F, Sadowsky MJ. Gene expression profiling of Escherichia coli in response to interactions with the lettuce rhizosphere. J Appl Microbiol 2012; 113:1076-86. [PMID: 22830299 DOI: 10.1111/j.1365-2672.2012.05412.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [What about the content of this article? (0)] [Affiliation(s)] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2012] [Revised: 07/09/2012] [Accepted: 07/21/2012] [Indexed: 11/29/2022]
Abstract
AIMS The objective of this study was to examine transcriptional changes in Escherichia coli when the bacterium was growing in the lettuce rhizoshpere. METHODS AND RESULTS A combination of microarray analyses, colonization assays and confocal microscopy was used to gain a more complete understanding of bacterial genes involved in the colonization and growth of E. coli K12 in the lettuce root rhizosphere using a novel hydroponic assay system. After 3 days of interaction with lettuce roots, E. coli genes involved in protein synthesis, stress responses and attachment were up-regulated. Mutants in curli production (crl, csgA) and flagella synthesis (fliN) had a reduced capacity to attach to roots as determined by bacterial counts and by confocal laser scanning microscopy. CONCLUSIONS This study indicates that E. coli K12 has the capability to colonize lettuce roots by using attachment genes and can readily adapt to the rhizosphere of lettuce plants. SIGNIFICANCE AND IMPACT OF THE STUDY Results of this study show curli production and biofilm modulation genes are important for rhizosphere colonization and may provide useful targets to disrupt this process. Further studies using pathogenic strains will provide additional information about lettuce-E. coli interactions.
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Affiliation(s)
- Z Hou
- Department of Food Science and Nutrition, University of Minnesota, St. Paul, MN, USA
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