973 results on '"Ou P"'
Search Results
2. Experiment and numerical simulation investigation on cavitation evolution and damage in the throttling section of pressure reducing valve
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Aoqiang Duan, Chao Wang, Jian Xu, Shuaiqi Gao, Xiaofei Liu, Haozhe Jin, and Guofu Ou
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cavitation damage experiment ,gas condensation rate ,numerical model modification ,unsteady evolution process ,visualized experimental apparatus ,Technology ,Science - Abstract
Abstract For the phenomenon of widespread and serious cavitation damage in the throttling section of pressure reducing valve under high temperature and high pressure in the chemical technology process of petroleum and coal, according to actual coordination structure widely applied between the valve core and valve seat, the cavitation throttling section with symmetrical contraction and expansion was made, and the visualized cavitation water tunnel experimental apparatus was designed and constructed. The cavitation evolution process with time under different cavitation numbers σ was recorded by the high‐speed photography, the variation law of cavitation damage length and area with time was investigated by using aluminum film as cavitation damage carrier. Based on the experimental cavitation characteristic length L*, the evaporation coefficient Fv, and condensation coefficient Fc in the Zwart–Gerber–Belamri cavitation numerical model were modified, and the cavitation damage region was predicted by the gas phase condensation rate of numerical simulation. The results show that with the decrease of cavitation number, the characteristic length of cavitation strip increases; the cavitation characteristic length fluctuates greatly at σ = 1.22, and there are cavitation cloud periodic formation, shedding, collapse, and disappearance at the tail of the cavitation strip on the upper valve seat; the cavitation damage length of the upper and lower valve seat remains unchanged with time, and the cavitation damage area increases approximately linearly with time; the initial position and length of cavitation damage predicted by the gas phase condensation rate are basically consistent with the experimental results, which verifies the accuracy of the modified numerical simulation.
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- 2022
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3. Ribosome profiling reveals multiple roles of SecA in cotranslational protein export
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Zikun Zhu, Shuai Wang, and Shu-ou Shan
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Science - Abstract
Using a combination of ribosome profiling methods, Zhu et al. investigate the principles governing the cotranslational interaction of SecA with nascent proteins and reveal a hierarchical organization of protein export pathways in bacteria.
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- 2022
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4. Application of 5-aminolevulinic acid-mediated Waterlase-assisted photodynamic therapy in the treatment of oral leukoplakia
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Jiali Ou, Yijun Gao, Huan Li, Tianyou Ling, and Xiaoyan Xie
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Medicine ,Science - Abstract
Abstract Photodynamic therapy (PDT) is an alternative microinvasive approach with satisfying results in the treatment of oral leukoplakia (OL). PDT combined with laser irradiation shows promise, safety and efficacy in treating OL. The efficacy of waterlase (YSGG) combined with PDT was studied by brush and tissue biopsy. Seventy-one patients with histologically diagnosed OL were enrolled, including patients with mild to moderate dysplasia, severe dysplasia and various dysplastic tissues. Patients were evaluated at baseline (t0), the end of treatment (t1) and 1 year later (t2). At t1, PDT showed a significant therapeutic effect on OL with mild to moderate dysplasia. Clinical and histological examinations revealed 60 cases (84.51%) of complete remission and 11 cases (15.49%) of partial remission. On brush biopsy, all PDT-treated patients showed reduced aneuploidy and normal histological findings. Unfortunately, at t2, 9 patients relapsed with OL, which may be related to continued smoking and betel nut chewing. At t2, 5 patients developed new severe epithelial dysplasia and even carcinoma in situ in other areas, mostly the tongue. ALA-mediated PDT combined with YSGG is effective in treating OL, particularly that with mild to moderate dysplasia. However, severe dysplasia may present undesirable effects, and the mechanism remains to be further investigated. ALA-mediated PDT combined with YSGG provides a new method for OL treatment.
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- 2022
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5. Deep neural network trained on gigapixel images improves lymph node metastasis detection in clinical settings
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Shih-Chiang Huang, Chi-Chung Chen, Jui Lan, Tsan-Yu Hsieh, Huei-Chieh Chuang, Meng-Yao Chien, Tao-Sheng Ou, Kuang-Hua Chen, Ren-Chin Wu, Yu-Jen Liu, Chi-Tung Cheng, Yu-Jen Huang, Liang-Wei Tao, An-Fong Hwu, I-Chieh Lin, Shih-Hao Hung, Chao-Yuan Yeh, and Tse-Ching Chen
- Subjects
Science - Abstract
The pathological identification of lymph node metastasis in whole-slide images is demanding and tedious. Here, the authors design an artificial-intelligence-assisted assessment workflow to facilitate the routine counting of metastatic LNs.
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- 2022
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6. A single-cell transcriptomic atlas characterizes the silk-producing organ in the silkworm
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Yan Ma, Wenhui Zeng, Yongbing Ba, Qin Luo, Yao Ou, Rongpeng Liu, Jingwen Ma, Yiyun Tang, Jie Hu, Haomiao Wang, Xuan Tang, Yuanyuan Mu, Qingjun Li, Yuqin Chen, Yiting Ran, Zhonghuai Xiang, and Hanfu Xu
- Subjects
Science - Abstract
The molecular underpinning of silk-producing organs is not well characterized. Here the authors use single-cell RNA sequencing to build an atlas of the silkworm silk gland and reveal the heterogeneity of silk gland cells.
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- 2022
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7. Design of a two-dimensional interplanar heterojunction for catalytic cancer therapy
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Yong Kang, Zhuo Mao, Ying Wang, Chao Pan, Meitong Ou, Hanjie Zhang, Weiwei Zeng, and Xiaoyuan Ji
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Science - Abstract
Chemodynamic therapy relies on Fenton or Fenton-like reactions to produce hydroxyl radical in the tumor region. Here the authors design a two-dimensional interplanar heterojunction with in situ hydroxyl radical generation under ultrasound irradiation, showing anti-cancer activity in preclinical models.
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- 2022
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8. Quantifying agent impacts on contact sequences in social interactions
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Mark M. Dekker, Tessa F. Blanken, Fabian Dablander, Jiamin Ou, Denny Borsboom, and Debabrata Panja
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Medicine ,Science - Abstract
Abstract Human social behavior plays a crucial role in how pathogens like SARS-CoV-2 or fake news spread in a population. Social interactions determine the contact network among individuals, while spreading, requiring individual-to-individual transmission, takes place on top of the network. Studying the topological aspects of a contact network, therefore, not only has the potential of leading to valuable insights into how the behavior of individuals impacts spreading phenomena, but it may also open up possibilities for devising effective behavioral interventions. Because of the temporal nature of interactions—since the topology of the network, containing who is in contact with whom, when, for how long, and in which precise sequence, varies (rapidly) in time—analyzing them requires developing network methods and metrics that respect temporal variability, in contrast to those developed for static (i.e., time-invariant) networks. Here, by means of event mapping, we propose a method to quantify how quickly agents mingle by transforming temporal network data of agent contacts. We define a novel measure called contact sequence centrality, which quantifies the impact of an individual on the contact sequences, reflecting the individual’s behavioral potential for spreading. Comparing contact sequence centrality across agents allows for ranking the impact of agents and identifying potential ‘behavioral super-spreaders’. The method is applied to social interaction data collected at an art fair in Amsterdam. We relate the measure to the existing network metrics, both temporal and static, and find that (mostly at longer time scales) traditional metrics lose their resemblance to contact sequence centrality. Our work highlights the importance of accounting for the sequential nature of contacts when analyzing social interactions.
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- 2022
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9. Association of retinopathy severity with cardiovascular and renal outcomes in patients with type 1 diabetes: a multi-state modeling analysis
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Wei-Ming Wang, Huang-Tz Ou, Miin-Jye Wen, Pei-Fang Su, Chen-Yi Yang, Te-Hui Kuo, Ming-Cheng Wang, and Wei-Hung Lin
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Medicine ,Science - Abstract
Abstract This study aimed to assess the impact of diabetic retinopathy (DR) severity on the incidence of major adverse cardiac events (MACE) and end-stage renal disease (ESRD) in T1D patients. Patients diagnosed with T1D between 1999 and 2013 were identified from patient-level data of Taiwan’s National Health Insurance Research database. A total of 1135 patients were included and classified into mild DR (n = 454), severe DR (n = 227), or non-DR (n = 454) by using propensity score matching. Multi-state model analyses, an extension of competing risk models with adjustment for transition-specific covariates for prediction of subsequent MACE and ESRD, were performed. MACE and ESRD risks were significantly higher in the severe DR patients; a 2.97-fold (1.73, 5.07) and 12.29-fold (6.50, 23.23) increase in the MACE risk among the severe DR patients compared to the mild DR and DR-free patients, respectively; and, a 5.91-fold (3.50, 9.99) and 82.31-fold (29.07, 233.04) greater ESRD risk of severe DR patients than that of the mild DR and DR-free groups, respectively (p
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- 2022
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10. Effects of hydrophilic and hydrophobic nano‐CaCO3 on kinetics of hydrate formation
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Dongdong Guo, Wenjia Ou, Fulong Ning, Bin Fang, Yongsheng Liang, Shahab Ud Din, and Ling Zhang
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drilling fluids ,gas hydrate ,hydrophilicity, hydrophobicity ,inhibition effect ,nano‐CaCO3 particles ,Technology ,Science - Abstract
Abstract The invasion of drilling fluids during well drilling through gas hydrate‐bearing sediments may seriously damage gas hydrate stability and distort well‐logging identification and evaluation in exploration and production of gas hydrate reservoirs. Adding nanoparticles into drilling fluids can be an efficient method to reduce fluid invasion. However, nanoparticles may induce hydrate formation in wells, which will block annulus and lead to safety accidents. Therefore, suitable nanoparticles used for hydrate drilling should be clarified first. This study addressed this issue by experimentally investigating the influence of hydrophilic and hydrophobic nano‐CaCO3 on CH4 hydrate formation in a dynamic system. We performed a series of experiments by using nano‐CaCO3 (1.0–6.0 wt%) with different particle sizes (20, 70, and 700 nm) at 3.0 °C and 6.0 MPa. The macroscopic kinetic parameters of hydrate formation were obtained. The results show that hydrophobic nano‐CaCO3 particles promote hydrate formation, while hydrophilic ones can inhibit hydrate formation at certain particle sizes and concentrations. This is mainly due to the different surface wettability, resulting in the different distribution of water and gas molecules in fluids. The hydrophilic nano‐CaCO3 with the particle size of 20 nm and addition of 3.0 wt% has the strongest inhibition effect under the given experimental conditions. In comparison with ultrapure water, the induction time is increased by about 38%, while the formation amount and rate are decreased by about 13% and 18%, respectively. This work will provide valuable ideas and references for the design of deepwater drilling fluid using nanoparticles, and also provide insight into revealing the formation and evolution mechanism of hydrate deposits at the micropore or even nanopore scale.
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- 2022
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11. Sugariness prediction of Syzygium samarangense using convolutional learning of hyperspectral images
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Chih-Jung Chen, Yung-Jhe Yan, Chi-Cho Huang, Jen-Tzung Chien, Chang-Ting Chu, Je-Wei Jang, Tzung-Cheng Chen, Shiou-Gwo Lin, Ruei-Siang Shih, and Mang Ou-Yang
- Subjects
Medicine ,Science - Abstract
Abstract Sugariness is one of the most important indicators to measure the quality of Syzygium samarangense, which is also known as the wax apple. In general, farmers used to measure sugariness by testing the extracted juice of the wax apple products. Such a destructive way to measure sugariness is not only labor-consuming but also wasting products. Therefore, non-destructive and quick techniques for measuring sugariness would be significant for wax apple supply chains. Traditionally, the non-destructive method to predict the sugariness or the other indicators of the fruits was based on the reflectance spectra or Hyperspectral Images (HSIs) using linear regression such as Multi-Linear Regression (MLR), Principal Component Regression (PCR), and Partial Least Square Regression (PLSR), etc. However, these regression methods are usually too simple to precisely estimate the complicated mapping between the reflectance spectra or HSIs and the sugariness. This study presents the deep learning methods for sugariness prediction using the reflectance spectra or HSIs from the bottom of the wax apple. A non-destructive imaging system fabricated with two spectrum sensors and light sources is implemented to acquire the visible and infrared lights with a range of wavelengths. In particular, a specialized Convolutional Neural Network (CNN) with hyperspectral imaging is proposed by investigating the effect of different wavelength bands for sugariness prediction. Rather than extracting spatial features, the proposed CNN model was designed to extract spectral features of HSIs. In the experiments, the ground-truth value of sugariness is obtained from a commercial refractometer. The experimental results show that using the whole band range between 400 and 1700 nm achieves the best performance in terms of °Brix error. CNN models attain the °Brix error of ± 0.552, smaller than ± 0.597 using Feedforward Neural Network (FNN). Significantly, the CNN’s test results show that the minor error in the interval 0 to 10°Brix and 10 to 11°Brix are ± 0.551 and ± 0.408, these results indicate that the model would have the capability to predict if sugariness is below 10°Brix or not, which would be similar to the human tongue. These results are much better than ± 1.441 and ± 1.379 by using PCR and PLSR, respectively. Moreover, this study provides the test error in each °Brix interval within one Brix, and the results show that the test error is varied considerably within different °Brix intervals, especially on PCR and PLSR. On the other hand, FNN and CNN obtain robust results in terms of test error.
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- 2022
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12. The impact of glucose tolerance state on seropositivity rate after hepatitis B vaccination
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Maria Mercedes Chang Villacreses, Rudruidee Karnchanasorn, Horng-Yih Ou, Raynald Samoa, Lee-Ming Chuang, and Ken C. Chiu
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Medicine ,Science - Abstract
Abstract Immunization is recommended for people with diabetes mellitus (DM), but little information is available on their seropositivity rates. To determine the impact of glucose tolerance state on seropositivity rate after hepatitis B vaccination, we included 7645 adult participants from the National Health and Nutrition Examination Survey 2005–2016 who reported three doses of hepatitis B vaccine and were seropositive for anti-hepatitis B surface antibody (≥ 12.0 mIU/mL), after exclusion of those positive for anti-hepatitis B core antibody and/or hepatitis B surface antigen. We classified the states of glucose tolerance as normal glucose tolerance (NGT, 61.68%), abnormal glucose tolerance (AGT, 26.02%), or DM (13.30%). We observed a stepwise decline in hepatitis B seropositivity rate from NGT (53.64%) to AGT (45.52%) to DM (28.84%) (P
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- 2022
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13. Association between recurrent breast cancer and phthalate exposure modified by hormone receptors and body mass index
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Pei-Jing Yang, Ming-Feng Hou, Fu Ou-Yang, Tsung-Hua Hsieh, Yen-Jung Lee, Eing-Mei Tsai, and Tsu-Nai Wang
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Medicine ,Science - Abstract
Abstract The association between phthalate exposure and breast cancer remains controversial. We performed a prospective patient cohort design to explore the interaction between creatinine-corrected urinary phthalate metabolites and hormone receptors as well as body mass index (BMI) on recurrent breast cancer. In this follow-up study, 636 female breast cancer patients and 45 new recurrent cases diagnosed for a total of 1576.68 person-years of follow-up were recruited. Mono-(2-ethyl-5-oxohexyl) phthalate (MEOHP) was negatively associated with breast cancer recurrence, with adjusted hazard ratio (aHR) 3rd vs. 1st quartile of 0.15 (95% CI 0.04–0.51). The MEOHP presented as a non-monotonic dose–response (NMDR) curve, being U-shaped. In the stratification of hormone receptors, MEOHP still exhibited a U-shaped dose–response curve. The third quartile of MEOHP showed significant lowest recurrent risk in the status of ER-positive (aHR 0.18, 95% CI 0.05–0.66), PR-negative (aHR 0.14, 95% CI 0.03–0.63), and HER2-negative (aHR 0.24, 95% CI 0.08–0.76). Whether in BMI
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- 2022
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14. Three-step matching algorithm to enhance between-group comparability and minimize confounding in comparative effectiveness studies
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Chen-Yi Yang, Shihchen Kuo, Edward Chia-Cheng Lai, and Huang-Tz Ou
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Medicine ,Science - Abstract
Abstract We developed a three-step matching algorithm to enhance the between-group comparability for comparative drug effect studies involving prevalent new-users of the newer study drug versus older comparator drug(s). The three-step matching scheme is to match on: (1) index date of initiating the newer study drug to align the cohort entry time between study groups, (2) medication possession ratio measures that consider prior exposure to all older comparator drugs, and (3) propensity scores estimated from potential confounders. Our approach is illustrated with a comparative cardiovascular safety study of glucagon-like peptide-1 receptor agonist (GLP-1ra) versus sulfonylurea (SU) in type 2 diabetes patients using Taiwan’s National Health Insurance Research Database 2003–2015. 66% of 3195 GLP-1ra users had previously exposed to SU. The between-group comparability was well-achieved after implementing the matching algorithm (i.e., standardized mean difference
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- 2022
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15. The dependence of upper ocean gyres on wind and buoyancy forcing
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Tongya Liu, Hsien-Wang Ou, Xiaohui Liu, Yu-Kun Qian, and Dake Chen
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Wind forcing ,Buoyancy forcing ,Eddy mixing ,Double gyres ,Upper-ocean circulations ,Science ,Geology ,QE1-996.5 - Abstract
Abstract A series of numerical simulations with different forcing conditions are carried out, to investigate the roles played by buoyancy and wind forcing on the upper ocean gyres, and to contrast the laminar and eddying regimes. Model experiments show that the buoyancy-driven eastward geostrophic flow tends to suppress the formation of the wind-driven subpolar gyre, but the northward eddy heat transport can homogenize the subpolar water and reduce the meridional temperature gradient by about two-third, thus counteracting the buoyancy effect and saving the subpolar gyre. For the subtropical gyre, its transport is enhanced by eddy mixing, and the role of buoyancy forcing is very sensitive to the choice of diapycnal diffusivity. Our results suggest that eddy effects must be considered in the dynamics of the subpolar gyre, and vertical diffusivity should be selected carefully in simulating the basin-wide circulations.
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- 2022
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16. Ultrafast coherent control of a hole spin qubit in a germanium quantum dot
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Ke Wang, Gang Xu, Fei Gao, He Liu, Rong-Long Ma, Xin Zhang, Zhanning Wang, Gang Cao, Ting Wang, Jian-Jun Zhang, Dimitrie Culcer, Xuedong Hu, Hong-Wen Jiang, Hai-Ou Li, Guang-Can Guo, and Guo-Ping Guo
- Subjects
Science - Abstract
Hole-spin qubits in germanium are promising candidates for rapid, all-electrical qubit control. Here the authors report Rabi oscillations with the record frequency of 540 MHz in a hole-based double quantum dot in a germanium hut wire, which is attributed to strong spin-orbit interaction of heavy holes.
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- 2022
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17. Integrated near-infrared spectral sensing
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Kaylee D. Hakkel, Maurangelo Petruzzella, Fang Ou, Anne van Klinken, Francesco Pagliano, Tianran Liu, Rene P. J. van Veldhoven, and Andrea Fiore
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Science - Abstract
What are the minimal hardware requirements for a given class of sensing problems? Here, authors investigate this while proposing a miniaturized near-infrared spectral sensor, based on an array of resonant-cavity enhanced photodetectors, and capable of operating without the need for spectral reconstruction.
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- 2022
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18. ICEO, a biological ontology for representing and analyzing bacterial integrative and conjugative elements
- Author
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Meng Liu, Jialin Liu, Guitian Liu, Hui Wang, Xiaoli Wang, Zixin Deng, Yongqun He, and Hong-Yu Ou
- Subjects
Science - Abstract
Abstract Bacterial integrative and conjugative elements (ICEs) are highly modular mobile genetic elements critical to the horizontal transfer of antibiotic resistance and virulence factor genes. To better understand and analyze the ongoing increase of ICEs, we developed an Integrative and Conjugative Element Ontology (ICEO) to represent the gene components, functional modules, and other information of experimentally verified ICEs. ICEO is aligned with the upper-level Basic Formal Ontology and reuses existing reliable ontologies. There are 31,081 terms, including 26,814 classes from 14 ontologies and 4128 ICEO-specific classes, representing the information of 271 known experimentally verified ICEs from 235 bacterial strains in ICEO currently and 311 predicted ICEs of 272 completely sequenced Klebsiella pneumoniae strains. Three ICEO use cases were illustrated to investigate complex joins of ICEs and their harboring antibiotic resistance or virulence factor genes by using SPARQL or DL query. ICEO has been approved as an Open Biomedical Ontology library ontology. It may be dedicated to facilitating systematical ICE knowledge representation, integration, and computer-assisted queries.
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- 2022
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19. Light makeup decreases receivers’ negative emotional experience
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Ling Zhang, Wenfeng Chen, Menghan Liu, Yuxiao Ou, Erjia Xu, and Ping Hu
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Medicine ,Science - Abstract
Abstract Makeup is widely used in modern society and has a positive effect on perceived attractiveness. However, little is known about the other possible outcomes of makeup use. In this study, we investigated whether makeup enhances a receiver’s emotional experience. Dynamic faces with or without makeup are presented in Experiments 1 and 2. Participants were asked to imagine themselves video chatting with a target person (expresser) with different expressions: neutral, angry, sad, or happy, and then to appraise their own subjective emotional experience. Emotional valence, arousal, and willingness to communicate were also assessed in Experiment 2. The results showed that makeup improved perceived facial attractiveness and increased the willingness to communicate. More importantly, it revealed that wearing makeup could weaken receivers’ negative experiences arising from the angry and sad conditions, which is not the case for the non-makeup condition, but could not affect the happy contagion. Furthermore, incremental changes in the amount of makeup were not accompanied by incremental changes in emotional appraisal (valence and arousal). Overall, we found that makeup may affect emotional contagion and interpersonal communication. Whether the alleviated negative experience due to makeup is adaptive may need further discussion.
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- 2021
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20. Single cell atlas for 11 non-model mammals, reptiles and birds
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Dongsheng Chen, Jian Sun, Jiacheng Zhu, Xiangning Ding, Tianming Lan, Xiran Wang, Weiying Wu, Zhihua Ou, Linnan Zhu, Peiwen Ding, Haoyu Wang, Lihua Luo, Rong Xiang, Xiaoling Wang, Jiaying Qiu, Shiyou Wang, Haimeng Li, Chaochao Chai, Langchao Liang, Fuyu An, Le Zhang, Lei Han, Yixin Zhu, Feiyue Wang, Yuting Yuan, Wendi Wu, Chengcheng Sun, Haorong Lu, Jihong Wu, Xinghuai Sun, Shenghai Zhang, Sunil Kumar Sahu, Ping Liu, Jun Xia, Lijing Zhang, Haixia Chen, Dongming Fang, Yuying Zeng, Yiquan Wu, Zehua Cui, Qian He, Sanjie Jiang, Xiaoyan Ma, Weimin Feng, Yan Xu, Fang Li, Zhongmin Liu, Lei Chen, Fang Chen, Xin Jin, Wei Qiu, Tianjiao Wang, Yang Li, Xiumei Xing, Huanming Yang, Yanchun Xu, Yan Hua, Yahong Liu, Huan Liu, and Xun Xu
- Subjects
Science - Abstract
Here the authors report single-nucleus RNA sequencing for several anatomical locations in 11 species, including cat, dog, hamster, lizard, goat, rabbit, duck, pigeon, pangolin, tiger, and deer, highlighting coexpression of SARS-CoV-2 entry factors ACE2 and TMPRSS2.
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- 2021
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21. Longitudinal monitoring in Cambodia suggests higher circulation of alpha and betacoronaviruses in juvenile and immature bats of three species
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Julien Cappelle, Neil Furey, Thavry Hoem, Tey Putita Ou, Thona Lim, Vibol Hul, Oudam Heng, Véronique Chevalier, Philippe Dussart, and Veasna Duong
- Subjects
Medicine ,Science - Abstract
Abstract Recent studies suggest that coronaviruses circulate widely in Southeast Asian bat species and that the progenitors of the SARS-Cov-2 virus could have originated in rhinolophid bats in the region. Our objective was to assess the diversity and circulation patterns of coronavirus in several bat species in Southeast Asia. We undertook monthly live-capture sessions and sampling in Cambodia over 17 months to cover all phases of the annual reproduction cycle of bats and test specifically the association between their age and CoV infection status. We additionally examined current information on the reproductive phenology of Rhinolophus and other bat species presently known to occur in mainland southeast China, Vietnam, Laos and Cambodia. Results from our longitudinal monitoring (573 bats belonging to 8 species) showed an overall proportion of positive PCR tests for CoV of 4.2% (24/573) in cave-dwelling bats from Kampot and 4.75% (22/463) in flying-foxes from Kandal. Phylogenetic analysis showed that the PCR amplicon sequences of CoVs (n = 46) obtained clustered in Alphacoronavirus and Betacoronavirus. Interestingly, Hipposideros larvatus sensu lato harbored viruses from both genera. Our results suggest an association between positive detections of coronaviruses and juvenile and immature bats in Cambodia (OR = 3.24 [1.46–7.76], p = 0.005). Since the limited data presently available from literature review indicates that reproduction is largely synchronized among rhinolophid and hipposiderid bats in our study region, particularly in its more seasonal portions (above 16° N), this may lead to seasonal patterns in CoV circulation. Overall, our study suggests that surveillance of CoV in insectivorous bat species in Southeast Asia, including SARS-CoV-related coronaviruses in rhinolophid bats, could be targeted from June to October for species exhibiting high proportions of juveniles and immatures during these months. It also highlights the need to develop long-term longitudinal surveys of bats and improve our understanding of their ecology in the region, for both biodiversity conservation and public health reasons.
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- 2021
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22. A dataset of dual calcium and voltage optical mapping in healthy and hypertrophied murine hearts
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Shicheng He, Kun Kou, Christopher O’Shea, Tangting Chen, Razik Mu-u-min, Ruirui Dong, Huiying Ren, Xiaolin Zhou, Zhongcai Fan, Xiaoqiu Tan, Davor Pavlovic, Xianhong Ou, and Ming Lei
- Subjects
Science - Abstract
Measurement(s) transmembrane potential • calcium transient Technology Type(s) high-throughput simultaneous optical imaging Sample Characteristic - Organism Mus musculus Machine-accessible metadata file describing the reported data: https://doi.org/10.6084/m9.figshare.16910542
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- 2021
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23. Confirming the TMEM232 gene associated with atopic dermatitis through targeted capture sequencing
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Jie Zheng, Yuan-yuan Wu, Wen-liang Fang, Xin-ying Cai, Zeng-yun-ou Zhang, Chong-xian Yu, Xiao-dong Zheng, and Feng-li Xiao
- Subjects
Medicine ,Science - Abstract
Abstract Atopic dermatitis (AD) is a common and complex skin disorder, and the 5q22.1 region had been reported to be associated with AD. To confirm the susceptibility gene for AD in the 5q22.1 region by haplotype and targeted capture sequencing. The haplotypes were reconstructed with the genotyping data of four SNPs and six deletions from 3624 Chinese Hans AD patients and 5076 controls. The targeted capture sequencing spanning 5q22.1 region was performed in the selected samples. The gene level enrichment analysis was done using loss of function variants. A total of 62 haplotypes were found, and the H15 haplotype had the strongest association with AD (P = 3.92 × 10−10, OR 0.17, 95% CI 0.09–0.32). However, no co-segregation mutation sites were found in the sequencing analysis within the 16 selected samples, while the enrichment analysis indicated that TMEM232 was significantly associated with AD (P = 7.33 × 10–5, OR 0.33, 95% CI 0.19–0.58). This study confirms previous findings that the TMEM232 gene is associated with AD by haplotype analysis and targeted capture sequencing.
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- 2021
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24. A novel SARS-CoV-2 related coronavirus in bats from Cambodia
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Deborah Delaune, Vibol Hul, Erik A. Karlsson, Alexandre Hassanin, Tey Putita Ou, Artem Baidaliuk, Fabiana Gámbaro, Matthieu Prot, Vuong Tan Tu, Sokha Chea, Lucy Keatts, Jonna Mazet, Christine K. Johnson, Philippe Buchy, Philippe Dussart, Tracey Goldstein, Etienne Simon-Lorière, and Veasna Duong
- Subjects
Science - Abstract
In this study, Delaune et al., isolate and characterise a SARS-CoV-2-related coronavirus from two bats sampled in Cambodia. Their findings suggest that the geographic distribution of SARS-CoV-2-related viruses is wider than previously reported.
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- 2021
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25. Geoelectric field response characteristics analysis of floor roadway surrounding rock fracture caused due to coal seam mining
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Yuanchao Ou, Pingsong Zhang, Maoru Fu, Xiongwu Hu, Rongxin Wu, Chang Liu, Binyang Sun, Shiang Xu, Shenglin Li, and Lei Tan
- Subjects
Medicine ,Science - Abstract
Abstract The fracture of rocks surrounding the floor roadway during the mining of the working face of a coal mine is a complicated spatiotemporal process due to the superimposed action of multiple stress fields on the surrounding rock mass. Using the surrounding rock of a floor roadway in the working face of the Huainan Pan’er Mine as the research subject, we conducted real-time monitoring using geoelectric field monitoring technology, and found the spatiotemporal response law of the geoelectric field in the process of regional rupture and damage of engineering rock masses under a complex stress field environment. The results show that (1) the time series response characteristics and spatial distribution of the geoelectric field signal are closely related to the stress distribution and damage evolution of the surrounding rock mass; (2) the rupture and damage degree of the goaf floor significantly increased when the working face was pushed through the monitoring area for 20–40 m. During this process, the excitation current dropped by 4–12 mA, and the self-potential pulse fluctuation amplitude was greater than 400 mV; (3) from the beginning of the monitoring process to the end of the monitoring, the self-potential in the damaged area decreased by 250 mV, and the self-potential in the mudstone layer below the damaged area increased by 140 mV. The electrons released into the environment around the damaged rock mass during the severe impact phase of mining did not flow back to the damaged area, and the positive charge in the damaged rock mass gradually accumulated in the complete rock mass in units of rock strata; (4) when superimposed and supported by anchor rod and cables, the bearing capacity of the shallow bearing circle of the roadway was enhanced, and the excitation current presented a step-like overall increase during mining of the working face with a small drop after every significant increase. This result is of significance in monitoring the evolutionary process of real-time failure of rock masses under complex stress environments using geoelectric field information and in improving the quality of geoelectric field monitoring technology testing applications in the future.
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- 2021
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26. ABHD5 inhibits YAP-induced c-Met overexpression and colon cancer cell stemness via suppressing YAP methylation
- Author
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Yan Gu, Yanrong Chen, Lai Wei, Shuang Wu, Kaicheng Shen, Chengxiang Liu, Yan Dong, Yang Zhao, Yue Zhang, Chi Zhang, Wenling Zheng, Jiangyi He, Yunlong Wang, Yifei Li, Xiaoxin Zhao, Hongwei Wang, Jun Tan, Liting Wang, Qi Zhou, Ganfeng Xie, Houjie Liang, and Juanjuan Ou
- Subjects
Science - Abstract
This study reveals an unrecognized role of ABHD5 in regulating colon cancer stemness via controlling YAP methylation and nuclear localization, further explaining the molecular mechanism through which ABHD5 functions as a tumour suppressor gene in colon cancer.
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- 2021
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27. Deep mitigation of CO2 and non-CO2 greenhouse gases toward 1.5 °C and 2 °C futures
- Author
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Yang Ou, Christopher Roney, Jameel Alsalam, Katherine Calvin, Jared Creason, Jae Edmonds, Allen A. Fawcett, Page Kyle, Kanishka Narayan, Patrick O’Rourke, Pralit Patel, Shaun Ragnauth, Steven J. Smith, and Haewon McJeon
- Subjects
Science - Abstract
Stabilizing climate change requires simultaneous mitigation of all greenhouse gas emissions (GHGs). Here the authors examine 90 mitigation scenarios pairing different levels of CO2 and non-CO2 GHG abatement pathways to demonstrate the contributions of different GHGs towards 1.5 °C and 2 °C goals.
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- 2021
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28. In situ inorganic conductive network formation in high-voltage single-crystal Ni-rich cathodes
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Xinming Fan, Xing Ou, Wengao Zhao, Yun Liu, Bao Zhang, Jiafeng Zhang, Lianfeng Zou, Lukas Seidl, Yangzhong Li, Guorong Hu, Corsin Battaglia, and Yong Yang
- Subjects
Science - Abstract
Single-crystal Ni-rich cathodes suffer from side reactions with the electrolyte and slow Li-ion transport during high-voltage cycling. Herein, a Li1.4Y0.4Ti1.6(PO4)3 coating is applied to facilitate the Li-ion transport and improve the cycling life of the cell.
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- 2021
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29. Sarcopenia adversely impacts postoperative complications in living-donor liver transplantation recipients
- Author
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Mei-Yun Wu, Wei-Xiong Lim, Yu-Fan Cheng, Ching-Di Chang, Hsien-Wen Hsu, Chih-Che Lin, Chao-Long Chen, Wan-Ching Chang, Chun-Yen Yu, Leo Leung-Chit Tsang, Yi-Hsuan Chuang, and Hsin-You Ou
- Subjects
Medicine ,Science - Abstract
Abstract Despite technological and immunological innovations, living-donor liver transplant (LDLT) recipients still face substantial risk of postoperative complications. Sarcopenia is being recognized more and more as a biomarker that correlates with poor outcomes in surgical patients. The purpose of this study was to evaluate the relationship between sarcopenia and significant surgical complications in LDLT recipients. This retrospective review included patients who had received LDLT at our institute from 2005 to 2017. Sarcopenia was assessed using the psoas muscle index (PMI) in cross-sectional images. ROC curve analysis was used to determine the ability of PMI to predict postoperative complications. Correlations between major postoperative complications and sarcopenia were evaluated using regression analysis. A total of 271 LDLT recipients were included. No significant differences were found between PMI and major postoperative complications in male patients. Female recipients with major postoperative complications had significantly lower mean PMI values (P = 0.028), and the PMI cut-off value was 2.63 cm2/m2. Postoperative massive pleural effusion requiring pigtail drainage occurred more frequently in the sarcopenia group than in the non-sarcopenia group (P = 0.003). 1-, 3-, 5- and 10-year overall survival rates in female were significantly poorer in the sarcopenia group (n = 14) compared with the non-sarcopenia group (n = 108), at 92.9% versus 97.2%, 85.7% versus 95.4%, 85.7% versus 92.5% and 70.1 versus 82.0%, respectively (P = 0.041) and 94.6%, 89.9%, 85.9% and 78.5% in male patients. Sarcopenia is associated with a significantly higher risk of major postoperative complications in females. PMI and sarcopenia together are predictive of major postoperative complications and survival rates in female LDLT recipients.
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- 2021
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30. Sex related differences in nonmotor symptoms of patients with idiopathic blepharospasm
- Author
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Jing Yang, Lingyu Zhang, Yanbing Hou, Qianqian Wei, Ruwei Ou, Junyu Lin, Wei Song, Bei Cao, and Huifang Shang
- Subjects
Medicine ,Science - Abstract
Abstract Idiopathic blepharospasm shows a female predominance in prevalence, whether there are sex-related differences in distributions of nonmotor symptoms (NMSs) and predictors of quality of life are unknown. Four hundred and twenty-five patients with idiopathic blepharospasm were consecutively recruited, and underwent assessments including dystonia severity, mood disturbances, sleep disturbances, cognition, ocular symptoms, and quality of life. Frequencies and distributions of NMSs, and predictors of quality of life in female and male patients were investigated. NMSs existed in majority of male (94.0%) and female (95.8%) patients. The frequencies of depression, cognition dysfunction, and poor sleep quality were higher in female patients, while the frequency of excessive daytime sleepiness was higher in male patients. More female (79.5%) patients had multiple NMS domains affected than male (70.1%) patients (p = 0.040). Quality of life was associated with depression, anxiety and motor severity for female patients (adjusted R2 = 0.367, p
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- 2021
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31. Genetic variations of DNA bindings of FOXA1 and co-factors in breast cancer susceptibility
- Author
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Wanqing Wen, Zhishan Chen, Jiandong Bao, Quan Long, Xiao-ou Shu, Wei Zheng, and Xingyi Guo
- Subjects
Science - Abstract
The identification of transcription factors (TFs) whose binding sites are affected by risk genetic variants remains crucial. Here, the authors develop a statistical framework to analyse ChIP-seq and GWAS data, identify 22 breast cancer risk-associated TFs and a core TF-transcriptional network for FOXA1 and co-factors.
- Published
- 2021
- Full Text
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32. Exploring reward-related attention selectivity deficits in Parkinson’s disease
- Author
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Matthew J. D. Pilgrim, Zhen-Yi Andy Ou, and Madeleine Sharp
- Subjects
Medicine ,Science - Abstract
Abstract An important aspect of managing a limited cognitive resource like attention is to use the reward value of stimuli to prioritize the allocation of attention to higher-value over lower-value stimuli. Recent evidence suggests this depends on dopaminergic signaling of reward. In Parkinson’s disease, both reward sensitivity and attention are impaired, but whether these deficits are directly related to one another is unknown. We tested whether Parkinson’s patients use reward information when automatically allocating their attention and whether this is modulated by dopamine replacement. We compared patients, tested both ON and OFF dopamine replacement medication, to older controls using a standard attention capture task. First, participants learned the different reward values of stimuli. Then, these reward-associated stimuli were used as distractors in a visual search task. We found that patients were generally distracted by the presence of the distractors but that the degree of distraction caused by the high-value and low-value distractors was similar. Furthermore, we found no evidence to support the possibility that dopamine replacement modulates the effect of reward on automatic attention allocation. Our results suggest a possible inability in Parkinson’s patients to use the reward value of stimuli when automatically allocating their attention, and raise the possibility that reward-driven allocation of resources may affect the adaptive modulation of other cognitive processes.
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- 2021
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33. Pressure induced superconductivity in MnSe
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T. L. Hung, C. H. Huang, L. Z. Deng, M. N. Ou, Y. Y. Chen, M. K. Wu, S. Y. Huyan, C. W. Chu, P. J. Chen, and T. K. Lee
- Subjects
Science - Abstract
Superconductivity in FeSe attracted great interests to understand the mechanism of high temperature superconductivity. Here, the authors report a pressure induced superconductivity with a highest T c of ~9 K in MnSe.
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- 2021
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34. Edge-oriented and steerable hyperbolic polaritons in anisotropic van der Waals nanocavities
- Author
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Zhigao Dai, Guangwei Hu, Guangyuan Si, Qingdong Ou, Qing Zhang, Sivacarendran Balendhran, Fahmida Rahman, Bao Yue Zhang, Jian Zhen Ou, Guogang Li, Andrea Alù, Cheng-Wei Qiu, and Qiaoliang Bao
- Subjects
Science - Abstract
The possibility to manipulate the propagation of polaritons is limited by the isotropy of 2D materials like graphene and hexagonal boron nitride. Here, the authors exploit the anisotropy of α-MoO3 and study edge tailored hyperbolic polariton manipulation in α-MoO3 nanocavities via real space nanoimaging.
- Published
- 2020
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35. New insights into the proteins interacting with the promoters of silkworm fibroin genes
- Author
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Yan Ma, Qin Luo, Yao Ou, Yiyun Tang, Wenhui Zeng, Haomiao Wang, Jie Hu, and Hanfu Xu
- Subjects
Medicine ,Science - Abstract
Abstract The silkworm, Bombyx mori, is a silk-producing insect that has contributed greatly to human society. The silk gland of B. mori is a specialized organ responsible for synthesizing silk fibroin and sericin proteins under control of numerous factors. However, which factors are involved in direct silk protein synthesis regulation remains largely unknown. We report the identification of promoter-interacting proteins (PIPs) necessary for the regulation of genes encoding fibroin proteins, including the fibroin heavy chain (fibH), fibroin light chain (fibL), and a 25-kD polypeptide protein (P25). In the fourth larval molting stage (M4) or day 5 fifth-instar larvae (L5D5), a total of 198, 292, and 247 or 330, 305, and 460 proteins interacting with the promoter region of fibH, fibL and P25, respectively, were identified from the posterior silk gland by DNA pull-down combined with mass spectrometry. Many PIPs were particularly involved in ribosome- and metabolism-related pathways. Additionally, 135 and 212 proteins were identified as common PIPs of fibH, fibL and P25 in M4 and L5D5, respectively. Among all PIPs, we identified 31 potential transcription factors, such as Y-box and poly A-binding proteins, which play roles in nucleotide binding, ATP binding, or protein folding. This study provides the first in-depth profile of proteins interacting with fibroin gene promoters and contributes to a better understanding of silk protein synthesis regulation.
- Published
- 2021
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36. An amphiphilic dendrimer as a light-activable immunological adjuvant for in situ cancer vaccination
- Author
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Yongchao Wang, Ningqiang Gong, Chi Ma, Yuxuan Zhang, Hong Tan, Guangchao Qing, Jimei Zhang, Yufei Wang, Jinjin Wang, Shizhu Chen, Xianlei Li, Qiankun Ni, Yuan Yuan, Yaling Gan, Junge Chen, Fangzhou Li, Jinchao Zhang, Caiwen Ou, Yongxiang Zhao, Xiaoxuan Liu, and Xing-Jie Liang
- Subjects
Science - Abstract
Immunological adjuvants are a crucial component of cancer vaccines. Here the authors design a light-activable immunological adjuvant, based on hypoxia-responsive amphiphilic dendrimer nanoparticles loaded with a photodynamic agent, promoting anti-tumor immune responses in preclinical cancer models.
- Published
- 2021
- Full Text
- View/download PDF
37. Optical coherence tomographic angiography study of perfusion recovery after surgical lowering of intraocular pressure
- Author
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Liang Liu, Hana L. Takusagawa, Miles F. Greenwald, Jie Wang, Brock Alonzo, Beth Edmunds, John C. Morrison, Ou Tan, Yali Jia, and David Huang
- Subjects
Medicine ,Science - Abstract
Abstract We investigated the time and location of retinal perfusion recovery after surgical intraocular pressure (IOP) lowering in glaucoma by using optical coherent tomography angiography (OCTA). Seventeen patients were analyzed. The 4.5 × 4.5-mm OCTA scans centered on the disc were performed preoperatively and postoperatively at 6 weeks, 3 months, and 6 months. The peripapillary retinal nerve fiber layer (NFL) thickness, NFL plexus capillary density (NFLP-CD) and visual field (VF) were measured overall and in 8 corresponding sectors. The low-perfusion area (LPA) was used to assess the cumulative area where local NFLP-CD was significantly below normal. At 6 months, the average IOP decreased 5.3 mmHg (P = 0.004), LPA decreased by 15% (P = 0.005), and NFLP-CD improved by 12% (P
- Published
- 2021
- Full Text
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38. Biosynthesis of silver nanoparticles with antimicrobial and anticancer properties using two novel yeasts
- Author
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Xin Liu, Jia-Le Chen, Wen-Yu Yang, Yu-Cheng Qian, Jing-Yu Pan, Chen-Nianci Zhu, Li Liu, Wen-Bin Ou, Hong-Xin Zhao, and Dian-Peng Zhang
- Subjects
Medicine ,Science - Abstract
Abstract AgNPs are nanomaterials with many potential biomedical applications. In this study, the two novel yeast strains HX-YS and LPP-12Y capable of producing biological silver nanoparticles were isolated. Sequencing of ribosomal DNA-ITS fragments, as well as partial D1/D2 regions of 26S rDNA indicated that the strains are related to species from the genus Metschnikowia. The BioAgNPs produced by HX-YS and LPP-12Y at pH 5.0–6.0 and 26 °C ranged in size from 50 to 500 nm. The antibacterial activities of yeast BioAgNPs against five pathogenic bacteria were determined. The highest antibacterial effect was observed on P. aeruginosa, with additional obvious effects on E. coli ATCC8099 and S. aureus ATCC10231. Additionally, the BioAgNPs showed antiproliferative effects on lung cancer cell lines H1975 and A579, with low toxicity in Beas 2B normal lung cells. Therefore, the AgNPs biosynthesized by HX-YS and LPP-12Y may have potential applications in the treatment of bacterial infections and cancer.
- Published
- 2021
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39. Quantum private set intersection cardinality based on bloom filter
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Bai Liu, Ou Ruan, Runhua Shi, and Mingwu Zhang
- Subjects
Medicine ,Science - Abstract
Abstract Private Set Intersection Cardinality that enable Multi-party to privately compute the cardinality of the set intersection without disclosing their own information. It is equivalent to a secure, distributed database query and has many practical applications in privacy preserving and data sharing. In this paper, we propose a novel quantum private set intersection cardinality based on Bloom filter, which can resist the quantum attack. It is a completely novel constructive protocol for computing the intersection cardinality by using Bloom filter. The protocol uses single photons, so it only need to do some simple single-photon operations and tests. Thus it is more likely to realize through the present technologies. The validity of the protocol is verified by comparing with other protocols. The protocol implements privacy protection without increasing the computational complexity and communication complexity, which are independent with data scale. Therefore, the protocol has a good prospects in dealing with big data, privacy-protection and information-sharing, such as the patient contact for COVID-19.
- Published
- 2021
- Full Text
- View/download PDF
40. Epidemiology of 40 blood biomarkers of one-carbon metabolism, vitamin status, inflammation, and renal and endothelial function among cancer-free older adults
- Author
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Hana Zahed, Mattias Johansson, Per M. Ueland, Øivind Midttun, Roger L. Milne, Graham G. Giles, Jonas Manjer, Malte Sandsveden, Arnulf Langhammer, Elin Pettersen Sørgjerd, Kjell Grankvist, Mikael Johansson, Neal D. Freedman, Wen-Yi Huang, Chu Chen, Ross Prentice, Victoria L. Stevens, Ying Wang, Loic Le Marchand, Lynne R. Wilkens, Stephanie J. Weinstein, Demetrius Albanes, Qiuyin Cai, William J. Blot, Alan A. Arslan, Anne Zeleniuch-Jacquotte, Xiao-Ou Shu, Wei Zheng, Jian-Min Yuan, Woon-Puay Koh, Kala Visvanathan, Howard D. Sesso, Xuehong Zhang, J. Michael Gaziano, Anouar Fanidi, David Muller, Paul Brennan, Florence Guida, and Hilary A. Robbins
- Subjects
Medicine ,Science - Abstract
Abstract Imbalances of blood biomarkers are associated with disease, and biomarkers may also vary non-pathologically across population groups. We described variation in concentrations of biomarkers of one-carbon metabolism, vitamin status, inflammation including tryptophan metabolism, and endothelial and renal function among cancer-free older adults. We analyzed 5167 cancer-free controls aged 40–80 years from 20 cohorts in the Lung Cancer Cohort Consortium (LC3). Centralized biochemical analyses of 40 biomarkers in plasma or serum were performed. We fit multivariable linear mixed effects models to quantify variation in standardized biomarker log-concentrations across four factors: age, sex, smoking status, and body mass index (BMI). Differences in most biomarkers across most factors were small, with 93% (186/200) of analyses showing an estimated difference lower than 0.25 standard-deviations, although most were statistically significant due to large sample size. The largest difference was for creatinine by sex, which was − 0.91 standard-deviations lower in women than men (95%CI − 0.98; − 0.84). The largest difference by age was for total cysteine (0.40 standard-deviation increase per 10-year increase, 95%CI 0.36; 0.43), and by BMI was for C-reactive protein (0.38 standard-deviation increase per 5-kg/m2 increase, 95%CI 0.34; 0.41). For 31 of 40 markers, the mean difference between current and never smokers was larger than between former and never smokers. A statistically significant (p
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- 2021
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41. High spatiotemporal resolution optoacoustic sensing with photothermally induced acoustic vibrations in optical fibres
- Author
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Yizhi Liang, Huojiao Sun, Linghao Cheng, Long Jin, and Bai-Ou Guan
- Subjects
Science - Abstract
Optoacoustic sensing applications are limited by weak electrostrictive force. Here, the authors induce photothermally acoustic vibrations with a focused pulsed laser, and via scanning demonstrate sensing of acoustic impedance at 10 µm spatial resolution, allowing for visualisation of diffusion dynamics.
- Published
- 2021
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42. Supramolecular engineering of charge transfer in wide bandgap organic semiconductors with enhanced visible-to-NIR photoresponse
- Author
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Yifan Yao, Qi Ou, Kuidong Wang, Haijun Peng, Feier Fang, Yumeng Shi, Ye Wang, Daniel Iglesias Asperilla, Zhigang Shuai, and Paolo Samorì
- Subjects
Science - Abstract
Despite advances in designed supramolecular organic nanowires for optoelectronics, realizing near infrared phototransistors with wide bandgap materials remains a challenge. Here, the authors report high-performance vertical phototransistors featuring supramolecularly engineered organic nanowires.
- Published
- 2021
- Full Text
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43. Long-term prognosis of vascular access in hemodialysis patients with systemic lupus erythematosus: a retrospective cohort study
- Author
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Fan-Yu Chen, Chun-Fan Chen, Ann Charis Tan, Chia-Hao Chan, Fu-An Chen, Wen-Sheng Liu, Tz-Heng Chen, Shuo-Ming Ou, Szu-Yuan Li, Ming-Tsun Tsai, Yung-Tai Chen, and Chih-Ching Lin
- Subjects
Medicine ,Science - Abstract
Abstract Patients with systemic lupus erythematosus (SLE) have a higher risk of vascular complications. This retrospective cohort study aimed to analyze the differences in the risk of arteriovenous fistula or graft (AVF/AVG) dysfunction in hemodialysis patients with and without SLE from Taiwan’s National Health Insurance Database over a 10-year period. AVF/AVG dysfunction is defined as the occurrence of the first episode of intervention after vascular access creation. A total of 1366 HD patients with SLE had higher incidence rates of AVF/AVG dysfunction than 4098 non-SLE HD patients in the following 4 periods: (1) after 1 year (incidence rates = 15.21% and 13.01%, respectively; subdistribution hazard ratio (SHR) = 1.16; P = 0.007), (2) 1st-to-10th-year period (15.36% and 13.25%; SHR = 1.16; P = 0.007), (3) 5th-to-10th-year period (11.91% and 8.1%; SHR = 1.42; P = 0.003), and (4) overall period (23.53% and 21.66%; SHR = 1.09; P = 0.027). In conclusion, there were significantly higher incidence rates of AVF/AVG dysfunction in SLE patients during the long-term follow-up period. Vascular access function should be monitored regularly by clinical examinations, especially after 1 year and during 5 to 10 years, to improve AVF/AVG patency and dialysis adequacy in SLE patients undergoing maintenance hemodialysis.
- Published
- 2021
- Full Text
- View/download PDF
44. Gold-in-copper at low *CO coverage enables efficient electromethanation of CO2
- Author
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Xue Wang, Pengfei Ou, Joshua Wicks, Yi Xie, Ying Wang, Jun Li, Jason Tam, Dan Ren, Jane Y. Howe, Ziyun Wang, Adnan Ozden, Y. Zou Finfrock, Yi Xu, Yuhang Li, Armin Sedighian Rasouli, Koen Bertens, Alexander H. Ip, Michael Graetzel, David Sinton, and Edward H. Sargent
- Subjects
Science - Abstract
The electroreduction of CO2 offers a promising approach to produce carbon-neutral methane using renewable electricity. This study shows that the introduction of Au in Cu enables selective methane production from CO2 by regulating *CO availability.
- Published
- 2021
- Full Text
- View/download PDF
45. TcpC inhibits neutrophil extracellular trap formation by enhancing ubiquitination mediated degradation of peptidylarginine deiminase 4
- Author
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Qian Ou, Jia-qi Fang, Zhe-sheng Zhang, Zhe Chi, Jie Fang, Di-yan Xu, Kai-zhong Lu, Meng-qing Qian, Da-yong Zhang, Jun-ping Guo, Wei Gao, Na-ru Zhang, and Jian-ping Pan
- Subjects
Science - Abstract
TcpC is a well characterised multifunctional virulence factor expressed by uropathogenic Eschericia coli. Here the authors show that TcpC also targets neutrophil NETosis via its E3 ligase functionality promoting the degradation of PAD4, and represents an additional immune evasion function of this bacterially derived virulence factor.
- Published
- 2021
- Full Text
- View/download PDF
46. Life-course pathways from childhood socioeconomic status to type 2 diabetes in mid-late Chinese adulthood
- Author
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Xiaoning Zhang, Xue Jiang, Mengqi Sha, Qiong Zhou, Wen Li, Yuqing Guo, Zhengyan Ou, and Junli Cao
- Subjects
Medicine ,Science - Abstract
Abstract The relationship between childhood socioeconomic status (SES) and type 2 diabetes (T2D) remains inconclusive, and the pathways and mechanisms driving this relationship have yet to be clarified. This study aimed to examine the pathways linking childhood SES to T2D prevalence in mid-late adulthood in a low- and middle-income country. The incidence of T2D diagnosed in mid-late Chinese adulthood was assessed using self-reports from the Health and Retirement Longitudinal Study (CHARLS). Childhood SES was assessed by the education, occupation, survivorship of the parents and the financial situation of the family, whereas adulthood SES was assessed by education and wage. This study performed structural equation modeling to clarify the direct and indirect pathways from childhood SES to T2D via childhood health, childhood food shortage, adulthood SES and physical activity. A total of 15,132 participants were included, and the prevalence of T2D was 5.24%. This study found that childhood SES was directly associated with T2D in mid-late adulthood, the probability of developing T2D increased by 9.20% of the standard deviation for each decrease in standard deviation in childhood SES. Childhood SES was indirectly associated with T2D via adulthood SES, physical activity, childhood health and food shortage. Adulthood SES and physical activity mainly mediated the indirect pathway from childhood SES and T2D. This study showed direct and indirect pathways from disadvantaged childhood SES to increased risk of T2D in mid-late Chinese adulthood. Childhood SES, adulthood SES, physical activity, childhood health and food shortage were identified as life-course interventional targets that should be considered in the development of effective strategies to reduce the burden of T2D and SES-related health inequities in childhood.
- Published
- 2021
- Full Text
- View/download PDF
47. OPG/TRAIL ratio as a predictive biomarker of mortality in patients with type A acute aortic dissection
- Author
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Jie Lu, Ping Li, Ke Ma, Yang Li, Hui Yuan, Junming Zhu, Weixun Duan, Jingsong Ou, Yonghong Huang, Long Wu, Xueliang Pan, Hui Zhang, Jie Du, and Yulin Li
- Subjects
Science - Abstract
Despite many therapeutic improvements, mortality risk in patients with type A acute aortic dissection remains high. Here the authors construct a biomarker-guided risk stratification tool to predict death, which could potentially contribute to treatment decision-making and improvement of the prognosis.
- Published
- 2021
- Full Text
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48. Mechanisms of Interannual Variability of Ocean Bottom Pressure in the Southern Indian Ocean
- Author
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Yuting Niu, Xuhua Cheng, Jianhuang Qin, Niansen Ou, Chengcheng Yang, and Duotian Huang
- Subjects
ocean bottom pressure ,Southern Indian Ocean ,wind forcing ,sea level pressure anomaly ,Ekman transport ,Science ,General. Including nature conservation, geographical distribution ,QH1-199.5 - Abstract
The study of ocean bottom pressure (OBP) helps to understand the changes in the sea level budget and ocean deep circulation. In this study, the characteristics and mechanisms of interannual OBP variability in the Southern Indian Ocean are examined using Gravity Recovery and Climate Experiment (GRACE) satellite data from 2003 to 2016. Results show that there are two energetic OBP centers in the Southern Indian Ocean (50°–60°S, 40°–60°E and 45°–60°S, 80°–120°E). The OBP magnitudes at two centers have strong variability on interannual time scales, and their values are larger during austral summer (NDJF) and winter (JJAS). Atmospheric forcing plays an important role in local OBP variability. The high (low) sea level pressure (SLP) over the Southern Indian Ocean benefits positive (negative) OBP anomalies via the convergence (divergence) of Ekman transport driven by local wind. Such SLP anomalies are related to the Southern Annular Mode (SAM), Southern Oscillation (SO) and Indian Ocean dipole (IOD). SAM can influence the OBP changes in both austral summer and winter, while SO and IOD have positive correlations with OBP variability during austral summer and austral winter, respectively. These results are validated by a mass-conservation ocean model, which further confirms the importance of atmospheric forcing on the interannual OBP variations.
- Published
- 2022
- Full Text
- View/download PDF
49. N-Demethylsinomenine, an active metabolite of sinomenine, attenuates chronic neuropathic and inflammatory pain in mice
- Author
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Zhiyong Zhou, Nanqing Qiu, Yuntao Ou, Qianqian Wei, Wenting Tang, Mingcong Zheng, Yaluan Xing, Jie-Jia Li, Yong Ling, Junxu Li, and Qing Zhu
- Subjects
Medicine ,Science - Abstract
Abstract Chronic pain is a significant public health problem that afflicts nearly 30% of the global population, but current pharmacotherapies are insufficient. Previous report indicated that N-demethylsinomenine, an active metabolite of sinomenine, is efficacious against postoperative pain. The present study investigated whether N-demethylsinomenine is effective for chronic painful conditions or whether repeated treatment alters its effect. Both chronic constriction injury (CCI) surgery and complete Freund’s adjuvant (CFA) intraplantar injection induced significant and reliable mechanical allodynia at least for 7 days. Acute treatment with N-demethylsinomenine (10–40 mg/kg, i.p.) dose-dependently attenuated the mechanical allodynia both in CCI-induced neuropathic pain and CFA-induced inflammatory pain in mice. The potency of N-demethylsinomenine for reducing CFA-induced mechanical allodynia was slightly higher than sinomenine. During the period of repeated treatment, N-demethylsinomenine maintained its anti-allodynic effect against both neuropathic and inflammatory pain without producing carry-over effect. Pretreatment with bicuculline, a selective γ-aminobutyric acid type A (GABAA) receptor antagonist, almost completely blocked the anti-allodynia of N-demethylsinomenine (40 mg/kg) both in CCI and CFA-treated mice. Our findings indicated that N-demethylsinomenine exhibits GABAA receptor-mediated anti-allodynic effects in mouse models of neuropathic and inflammatory pain, suggesting it may be a useful novel pharmacotherapy for the control of chronic pain.
- Published
- 2021
- Full Text
- View/download PDF
50. Type 2 diabetes is more predictable in women than men by multiple anthropometric and biochemical measures
- Author
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Tangying Li, Huibiao Quan, Huachuan Zhang, Leweihua Lin, Lu Lin, Qianying Ou, and Kaining Chen
- Subjects
Medicine ,Science - Abstract
Abstract Men and women are sexually dimorphic but whether common anthropometric and biochemical parameters predict type 2 diabetes (T2D) in different ways has not been well studied. Here we recruit 1579 participants in Hainan Province, China, and group them by sex. We compared the prediction power of common parameters of T2D in two sexes by association, regression, and Receiver Operating Characteristic (ROC) analysis. HbA1c is associated with FPG stronger in women than in men and the regression coefficient is higher, consistent with higher prediction power for T2D. Age, waist circumference, BMI, systolic and diastolic blood pressure, triglyceride levels, total cholesterol, LDL, HDL, fasting insulin, and proinsulin levels all predict T2D better in women. Except for diastolic blood pressure, all parameters associate or tend to associate with FPG stronger in women than in men. Except for diastolic blood pressure and fasting proinsulin, all parameters associate or tend to associate with HbA1c stronger in women than in men. Except for fasting proinsulin and HDL, the regression coefficients of all parameters with FPG and HbA1c were higher in women than in men. Together, by the above anthropometric and biochemical measures, T2D is more readily predicted in women than men, suggesting the importance of sex-based subgroup analysis in T2D research.
- Published
- 2021
- Full Text
- View/download PDF
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