136 results on '"Ting She"'
Search Results
2. A Cytoplasm‐Specific Fluorescent Ligand for Selective Imaging of RNA G‐Quadruplexes in Live Cancer Cells
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Bo‐Xin Zheng, Wei Long, Meng‐Ting She, Yakun Wang, Dong Zhao, Jie Yu, Alan Siu‐Lun Leung, Ka Hin Chan, Jinqiang Hou, Yu‐Jing Lu, and Wing‐Leung Wong
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Organic Chemistry ,General Chemistry ,Catalysis - Published
- 2023
3. Ectobacillus ponti sp. nov., a novel bacterium isolated from Pearl River Estuary
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Qi-Qi Deng, Shan-Hui Li, Xiao-Qing Luo, Zi-Wen Yang, Ting-Ting She, Jia-Ling Li, Pan-Deng Wang, Yu Wang, Hongchen Jiang, and Wen-Jun Li
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General Medicine ,Microbiology ,Ecology, Evolution, Behavior and Systematics - Abstract
A Gram-staining-positive, aerobic, motile, and rod-shaped strain, designated SYSU M60031T, was isolated from a Pearl River Estuary sediment sample, Guangzhou, Guangdong, China. The isolate could grow at pH 5.0–8.0 (optimum, pH 7.0), 25–37 °C (optimum, 28 °C) and in the presence of 0–1 % (w/v) NaCl (optimum, 0 %). The predominant respiratory menaquinone of SYSU M60031T was MK-7. The cellular polar lipids were diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylglycerol, one unidentified aminophospholipid, and one unidentified aminolipid. The major fatty acids (>10 % of total) were iso-C14 : 0, iso-C15 : 0, anteiso-C15 : 0, iso-C16 : 0, and C16 : 0. The genomic DNA G+C content was 51.2 %. Phylogenetic analyses based on 16S rRNA gene sequences and core genes indicated that strain SYSU M60031T belonged to the genus Ectobacillus and showed the highest sequence similarity to Ectobacillus funiculus NAF001T (96.16%), followed by Ectobacillus antri SYSU K30001T (95.08 %). Based on the phenotypic, genotypic, and phylogenetic data, strain SYSU M60031T should be considered to represent a novel species of the genus Ectobacillus , for which the name Ectobacillus ponti sp. nov. is proposed. The type strain of the proposed novel isolate is SYSU M60031T (=CGMCC 1.19243T =NBRC 115614T).
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- 2023
4. Impacts of distorted local chemical coordination on electrochemical performance in hydrated vanadium pentoxide
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Huanhuan Niu, Heng Liu, Long Yang, Te Kang, Ting Shen, Bingqi Jiang, Wei-Hsiang Huang, Chun-Chi Chang, Yanzhong Pei, Guozhong Cao, and Chaofeng Liu
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Science - Abstract
Abstract Modulating and elevating the operating voltage of a given cathode is a significant challenge to enhance the energy density of secondary batteries without sacrificing power output. The chemical coordination strongly influences the energy levels of d-orbitals of redox cations in cathode materials, which tie to their operating voltage. In contrast to concentrated studies on enhancing the specific capacity, in this study, we choose bi-layered hydrated vanadium pentoxide as the model to modulate the d-orbital energy levels through local chemical coordination manipulation, achieving a higher operating voltage in rechargeable aqueous zinc ion batteries. Here we show that, by employing X-ray absorption spectroscopy (XAS) and pair distribution function (PDF) techniques, we can analyze the distortion of [VO6] octahedra and extract chemical bond information, deciphering the correlation between the chemical coordination and operating voltage in cathode materials. The fundamentals could guide the designing and developing RAZIBs with higher energy and power density.
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- 2024
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5. Early detection of dementia through retinal imaging and trustworthy AI
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Jinkui Hao, William R. Kwapong, Ting Shen, Huazhu Fu, Yanwu Xu, Qinkang Lu, Shouyue Liu, Jiong Zhang, Yonghuai Liu, Yifan Zhao, Yalin Zheng, Alejandro F. Frangi, Shuting Zhang, Hong Qi, and Yitian Zhao
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Computer applications to medicine. Medical informatics ,R858-859.7 - Abstract
Abstract Alzheimer’s disease (AD) is a global healthcare challenge lacking a simple and affordable detection method. We propose a novel deep learning framework, Eye-AD, to detect Early-onset Alzheimer’s Disease (EOAD) and Mild Cognitive Impairment (MCI) using OCTA images of retinal microvasculature and choriocapillaris. Eye-AD employs a multilevel graph representation to analyze intra- and inter-instance relationships in retinal layers. Using 5751 OCTA images from 1671 participants in a multi-center study, our model demonstrated superior performance in EOAD (internal data: AUC = 0.9355, external data: AUC = 0.9007) and MCI detection (internal data: AUC = 0.8630, external data: AUC = 0.8037). Furthermore, we explored the associations between retinal structural biomarkers in OCTA images and EOAD/MCI, and the results align well with the conclusions drawn from our deep learning interpretability analysis. Our findings provide further evidence that retinal OCTA imaging, coupled with artificial intelligence, will serve as a rapid, noninvasive, and affordable dementia detection.
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- 2024
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6. Clostridium caldaquaticum sp. nov., a thermophilic bacterium isolated from a hot spring sediment
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Ai-Ping Lv, Yu-Zhen Ming, Ze-Tao Liu, Yu-Ting Ouyang, Meng-Meng Li, Zheng-Han Lian, Jian-Yu Jiao, Ting-Ting She, Lan Liu, and Wen-Jun Li
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General Medicine ,Microbiology ,Ecology, Evolution, Behavior and Systematics - Abstract
A novel anaerobic bacterium, designated SYSU GA19001T, was isolated from a hot spring sediment sample. Phylogenetic analysis indicated that the isolate belongs to the genus Clostridium , and showed the highest sequence similarity to Clostridium swellfunianum CICC 10730T (96.63 %) and Clostridium prolinivorans PYR-10T (96.11 %). Cells of strain SYSU GA19001T were Gram-stain-positive, spore-forming, rod-shaped (0.6–0.8×2.6–4.0 µm) and motile. Growth was observed at pH 5.0–9.0 (optimum, pH 7.0), 37–55 °C (optimum, 45 °C) and in NaCl concentrations of 0–2.0 % (optimum, 0 %). The genomic DNA G+C content was 31.62 %. The major cellular fatty acids of strain SYSU GA19001T were C14 : 0, iso-C15 : 0, C16 : 0 and summed feature 8. The prominent polar lipids were diphosphatidylglycerol, phosphatidylethanolamine, phosphatidylglycerol. Meso-diaminopimelic acid was the diamino acid in peptidoglycan. Based on the results of phylogenetic, chemotaxonomic and phenotypic analyses, strain SYSU GA19001T represents a novel species of the genus Clostridium , for which the name Clostridium caldaquaticum sp. nov. is proposed. The type strain of the proposed novel species is SYSU GA19001T (=NBRC 115040T= CGMCC 1.17864T).
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- 2023
7. Assessing college English teaching based on grey relational analysis.
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Yahong Li and Ting She
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- 2013
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8. Lens height paraments comparison according to ciliary sulcus width (CSW): a pilot study of the predictive role of CLR and STSL for vault after ICL implantation
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Yingjie Ni, Yuanpeng Wu, Yi Dong, Huihui Jin, Kailei Zhang, Chaoyang Hong, Peijin Qiu, and Ting Shen
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Implantable collamer lens ,Lens height ,Orientation ,Ciliary sulcus width ,Vault ,Ophthalmology ,RE1-994 - Abstract
Abstract Background To assess the relationship between postoperative implantable collamer lens (ICL) vault and lens height obtained from two different measurements. Methods A retrospective case series study enrolled eyes with horizontally implanted ICL. Crystal lens rise (CLR) and the distance between STS plane and anterior crystalline lens surface (STSL) were measured in the horizontal and vertical directions using ultrasound biomicroscopy (UBM). We compared the differences in the parameters measured in both horizontal and vertical directions. The participants were categorized into three groups according to ciliary sulcus width (CSW) which is defined as the distance between the posterior angle of the iris and the anterior angle of the ciliary process: narrow CSW group (NSG); medium CSW group (MSG); and wide CSW group (WSG). The correlations between CLR/STSL and vault were examined in each of the three groups. Biased correlation analysis was used further to contrast the correlation between CLR/STSL and vault. Results This retrospective study included 223 myopic eyes. Vertical STSL (VSTSL) and vertical CLR (VCLR) exhibited significantly greater values compared to their horizontal counterparts (both P
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- 2024
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9. Assessing the predictive validity of expectancy theory for academic performance
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Vahe Permzadian and Ting Shen
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Expectancy theory ,Motivation ,Validity ,Academic performance ,Psychology ,BF1-990 - Abstract
Abstract Background Despite expectancy theory’s widespread appeal and influence as a framework for motivation in organizational and educational settings, studies that have examined the theory’s validity for performance-based outcomes, particularly with academic performance as the criterion, have been characterized by inconsistent results. Given numerous methodological concerns associated with past studies (e.g., prevalence of between-person rather than within-person design), we examined the predictive validity of expectancy theory for academic performance using methods that were consistent with the theory’s original conceptualization. Additionally, we assessed the validity of the theory for students’ study effort. Methods The final sample included 123 undergraduate students who reported their final grades in four courses. Study effort and other variables were measured with self-report surveys. Because course grades were nested within each person, multilevel modeling was used to test study hypotheses. Results Both the valence model and the force model predicted a student’s current study effort, but contrary to expectations, neither model predicted a student’s final course grades. In contrast, both valence for academic success and the simplified force model (based only on valence and expectancy) predicted current study effort, final course grades, and explained incremental variance beyond cognitive ability. Furthermore, the predictive validity of this force model was relatively stable across the 11 weeks of the study. Conclusions Based on methods congruent with expectancy theory’s original framework, we find that the force model does not predict academic performance. An alternative version of the model, however, predicts course grades and has incremental validity over cognitive ability. Our results have several significant theoretical and practical implications.
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- 2024
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10. Multimodal Eye Imaging, Retina Characteristics, and Psychological Assessment Dataset
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Guanran Zhang, Yanlin Qu, Yanping Zhang, Jiayi Tang, Chunyan Wang, Haogui Yin, Xiaoping Yao, Gengshi Liang, Ting Shen, Qiushi Ren, Huixun Jia, and Xiaodong Sun
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Science - Abstract
Abstract The eyes provide insights into psychology, potentially offering a distinctive perspective for psychological health profiles. However, there exist a notable deficiency in datasets that simultaneously encompass eye features and psychological assessments. To address this gap, our study presents a dataset that included Fundus Photography, Psychological Assessment, Retina Characteristics, and Multimodal Imaging (FPRM). FPRM dataset comprise fundus images at different wavelengths (548 nm and 605 nm), image of oxygen saturation for the retina and 8 specific retinal vessels, videos of retinal blood flow and pupillary light reflex, along with 61 items of multimodal quantitative measurement from 384 participants. Additionally, it features psychological assessments across five dimensions (geriatric depression, generalized anxiety disorder, insomnia, activities of daily living, and deterioration), accompanied by fundus photographs and 6 items of retina characteristics from 1683 participants. FPRM dataset is the first to integrate multimodal ophthalmic data and psychological assessments, not only advancing the development of machine learning applications but also facilitating in-depth research into the relationship between eye health and psychological health profiles.
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- 2024
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11. Cholinergic nucleus degeneration and its association with gait impairment in Parkinson’s disease
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Xiaodan Zhang, Mateng Wang, Shi Yeow Lee, Yumei Yue, Zhaoying Chen, Yilin Zhang, Lulu Wang, Qiongfeng Guan, Weinv Fan, and Ting Shen
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Gait ,Cholinergic nucleus ,Magnetic resonance imaging ,Parkinson’s disease ,Voxel-based morphometry analysis ,Gray matter density ,Neurosciences. Biological psychiatry. Neuropsychiatry ,RC321-571 - Abstract
Abstract Background The contribution of cholinergic degeneration to gait disturbance in Parkinson’s disease (PD) is increasingly recognized, yet its relationship with dopaminergic-resistant gait parameters has been poorly investigated. We investigated the association between comprehensive gait parameters and cholinergic nucleus degeneration in PD. Methods This cross-sectional study enrolled 84 PD patients and 69 controls. All subjects underwent brain structural magnetic resonance imaging to assess the gray matter density (GMD) and volume (GMV) of the cholinergic nuclei (Ch123/Ch4). Gait parameters under single-task (ST) and dual-task (DT) walking tests were acquired using sensor wearables in PD group. We compared cholinergic nucleus morphology and gait performance between groups and examined their association. Results PD patients exhibited significantly decreased GMD and GMV of the left Ch4 compared to controls after reaching HY stage > 2. Significant correlations were observed between multiple gait parameters and bilateral Ch123/Ch4. After multiple testing correction, the Ch123/Ch4 degeneration was significantly associated with shorter stride length, lower gait velocity, longer stance phase, smaller ankle toe-off and heel-strike angles under both ST and DT condition. For PD patients with HY stage 1–2, there were no significant degeneration of Ch123/4, and only right side Ch123/Ch4 were corrected with the gait parameters. However, as the disease progressed to HY stage > 2, bilateral Ch123/Ch4 nuclei showed correlations with gait performance, with more extensive significant correlations were observed in the right side. Conclusions Our study demonstrated the progressive association between cholinergic nuclei degeneration and gait impairment across different stages of PD, and highlighting the potential lateralization of the cholinergic nuclei’s impact on gait impairment. These findings offer insights for the design and implementation of future clinical trials investigating cholinergic treatments as a promising approach to address gait impairments in PD.
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- 2024
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12. Survey on pattern of myopia in school children in Hangzhou after the COVID-19 pandemic: a school-based vision screening study
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Ting He, Lei Yin, Qingqing Zheng, Bei He, Zhizi Xu, Tingting Hu, Yuanpeng Wu, Hu Chen, Jie Yu, and Ting Shen
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Myopia ,Children ,COVID-19 ,Vision screening ,Prevalence ,Public aspects of medicine ,RA1-1270 - Abstract
Abstract Background Myopia is a major health issue around the world. Myopia in children has increased significantly during the COVID-19 pandemic in China, but reports are scarce on the prevalence of myopia following the pandemic. This study collected vision screening data of school children in China for five consecutive years to observe the changes in myopia after the pandemic and compare the observed prevalence of myopia before and after the pandemic. Methods A school-based vision screening study used stratified samplings to collect the vision screening data in school children aged 6–13 from 45 primary schools in Hangzhou. Vision screening data including uncorrected visual acuity(UCVA) and spherical equivalent refraction(SER). Calculating the mean of SER and the prevalence of myopia and hyperopia from 2019 to 2023. Results A total of 79,068 screening results (158,136 eyes) were included in the analysis. A substantial myopic shift (approximately -0.30 diopters [D] on average) was found in 2020 and 2021 compared with 2019 in all age groups and a substantial myopic shift (approximately 0.4 D on average) was found in 2022 compared with 2021. A slight myopic shift (approximately -0.14 D on average) was found in 2023 compared with 2022. The prevalence of myopia in all age groups was the highest for five years in 2020 or 2021, which was 31.3% for 6-year-olds, 43.0% for 7-year-olds, and 53.7% for 8-year-olds. A positive change in the prevalence rate of myopia was found at 6 years old (0.59%, 0.12%, 0.36%, 0.25%, p
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- 2024
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13. Molecular Recognition and Imaging of Human Telomeric G-Quadruplex DNA in Live Cells: A Systematic Advancement of Thiazole Orange Scaffold To Enhance Binding Specificity and Inhibition of Gene Expression
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Ao Lu Liu, Meng Ting She, Wing-Leung Wong, Xuan He Huang, Wei Long, Yu Jing Lu, Bo Xin Zheng, and Kun Zhang
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Down-Regulation ,Ligands ,G-quadruplex ,01 natural sciences ,Styrenes ,HeLa ,03 medical and health sciences ,chemistry.chemical_compound ,Cell Line, Tumor ,Lateral loop ,Drug Discovery ,Humans ,Benzothiazoles ,Telomerase ,Binding selectivity ,Fluorescent Dyes ,030304 developmental biology ,0303 health sciences ,Microscopy, Confocal ,biology ,Chemistry ,DNA ,biology.organism_classification ,0104 chemical sciences ,Cell biology ,Telomere ,G-Quadruplexes ,010404 medicinal & biomolecular chemistry ,Microscopy, Fluorescence ,Cell culture ,Cancer cell ,Quinolines ,RNA ,Molecular Medicine - Abstract
A series of fluorescent ligands, which were systematically constructed from thiazole orange scaffold, was investigated for their interactions with G-quadruplex structures and antitumor activity. Among the ligands, compound 3 was identified to exhibit excellent specificity toward telomere G4-DNA over other nucleic acids. The affinity of 3-Htg24 was almost 5 times higher than that of double-stranded DNA and promoter G4-DNA. Interaction studies showed that 3 may bind to both G-tetrad and the lateral loop near the 5'-end. The intracellular colocalization with BG4 and competition studies with BRACO19 reveal that 3 may interact with G4-structures. Moreover, 3 reduces the telomere length and downregulates hTERC and hTERT mRNA expression in HeLa cells. The cytotoxicity of 3 against cancer cells (IC50 = 12.7-16.2 μM) was found to be generally higher than noncancer cells (IC50 = 52.3 μM). The findings may support that the ligand is telomere G4-DNA specific and may provide meaningful insights for anticancer drug design.
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- 2021
14. Novel quinoline-based derivatives as the PqsR inhibitor against Pseudomonas aeruginosa PAO1
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Xuan-He Huang, Meng-Ting She, Yi-Hang Zhang, Yi-Fu Liu, Dong-Xiao Zhong, Yi-Han Zhang, Jun-Xia Zheng, Ning Sun, Wing-Leung Wong, and Yu-Jing Lu
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Pancreatic Elastase ,Virulence Factors ,Quorum Sensing ,General Medicine ,Ligands ,Applied Microbiology and Biotechnology ,Anti-Bacterial Agents ,Molecular Docking Simulation ,Bacterial Proteins ,Tetracyclines ,Biofilms ,Endopeptidases ,Pseudomonas aeruginosa ,Pyocyanine ,Biotechnology - Abstract
Aims The emerging of drug resistant Pseudomonas aeruginosa is a critical challenge and renders an urgent action to discover innovative antimicrobial interventions. One of these interventions is to disrupt the pseudomonas quinolone signal (pqs) quorum sensing (QS) system, which governs multiple virulence traits and biofilm formation. This study aimed to investigate the QS inhibitory activity of a series of new PqsR inhibitors bearing a quinoline scaffold against Ps. aeruginosa. Methods and Results The results showed that compound 1 suppressed the expression of QS-related genes and showed the best inhibitory activity to the pqs system of wild-type Ps. aeruginosa PAO1 with an IC50 of 20.22 μmol L−1. The virulence factors including pyocyanin, total protease, elastase and rhamnolipid were significantly suppressed in a concentration-dependent manner with the compound. In addition, compound 1 in combination with tetracycline inhibited synergistically the bacterial growth and suppressed the biofilm formation of PAO1. The molecular docking studies also suggested that compound 1 could potentially interact with the ligand-binding domain of the Lys-R type transcriptional regulator PqsR as a competitive antagonist. Conclusions The quinoline-based derivatives were found to interrupt the quorum sensing system via the pqs pathway and thus the production of virulence factors was inhibited and the antimicrobial susceptibility of Ps. aeruginosa was enhanced. Significance and Impact of Study The study showed that the quinoline-based derivatives could be used as an anti-virulence agent for treating Ps. aeruginosa infections.
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- 2022
15. Combining critical transition indicator to compare the stable structure of epiphyte–host networks
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Hai-Xia Hu, Yu-Xuan Mo, Sujan Balami, Glenda Mendieta-Leiva, Ting Shen, Shiekh Marifatul Haq, and Liang Song
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Ecological network ,Structure indicators ,Dynamic simulation ,Threshold ,Sampling effort ,Ecology ,QH540-549.5 - Abstract
Networks have been widely used to describe a range of biotic interactions in ecosystems; topological indicators of ecological networks provide systematic way to characterize patterns of different interacting systems. However, it is hampered by sampling bias and detecting the true structures to compare the stability of ecological communities. In this context, we aimed to employ innovative approach of identifying critical transition indicator to compare stable network structure by simulating dynamics of network assembly. Four epiphyte–host networks were compiled, including two groups (epiphytic bryophyte and epiphytic vascular plant) of tropical rainforest (TRF) and subtropical forest (STF). The dynamics of three structure indictors, i.e. connectance, nestedness and modularity were simulated to explore what changes occurred as sampling effort increases. The critical transition indicator was detected to compare the structure of four networks at a stable state. Meanwhile, the variation dynamics of host size and epiphyte richness were fitted to analyze the underlying processes shaping the stable network structure. Using a dynamic simulation, the network structures showed the critical transition to stable state when sampling size approximated 30 hosts for epiphytic bryophytes and 100 hosts for epiphytic vascular plants. After critical transition, connectance and nestedness were higher in the STF than in the TRF. In contrast, modularity was higher in the TRF than in the STF. The coefficient of variations (CV) of host size and epiphyte richness tended to be stable at the same critical transition point; the distribution of host size and epiphyte richness could be the fundamental factors for the assembly of stable epiphyte–host network. Our study emphasized the importance of considering sampling effort while evaluating the network structure. Combining critical transition indicator with structure indicator dynamics could be a powerful method to compare the stable structure of different ecological networks.
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- 2024
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16. A red fluorescent small-molecule for visualization of higher-order cyclic dimeric guanosine monophosphate (c-di-GMP) structure in live bacterial cells and real-time monitoring of biofilm formation on biotic and abiotic surfaces
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Yi-Han Zhang, Xuan-He Huang, Wing-Leung Wong, Jun-Ren Luo, Xiao-Chun Guo, Wenjie Liu, Jinqiang Hou, Meng-Ting She, Wen-Hao Jiang, Ning Sun, and Yu-Jing Lu
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Materials Chemistry ,Metals and Alloys ,Electrical and Electronic Engineering ,Condensed Matter Physics ,Instrumentation ,Surfaces, Coatings and Films ,Electronic, Optical and Magnetic Materials - Published
- 2023
17. Microstructure and formation mechanism of the transition layer at the interface of Al–Cu EMPW joint
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Yan Zhou, Chengxiang Li, Dan Chen, Ting Shen, Chennan Xu, and Xianmin Wang
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Electromagnetic pulse welding (EMPW) ,Interface transition layer ,Intermetallic compound (IMC) ,Secondary transition layer ,Cu sheet ,Al sheet ,Mining engineering. Metallurgy ,TN1-997 - Abstract
In the dissimilar metal welding field, electromagnetic pulse welding (EMPW) is a kind of potential technology. To further reveal the bonding mechanism of EMPW, this work carried out a Cu–Al sheet EMPW experiment with a discharge voltage of 15 kV and a gap of 1.5 mm. It analyzed the microstructure and formation mechanism of the Cu–Al EMPW joint bonding interface transition layer in detail by SEM, EDS, TEM, and FIB. The transition layer was found at the vortex zone, and there was an isolated long strip Cu particle separated from the main body of the Cu sheet. The tested results showed that the transition layer contained Al-rich intermetallic compound (IMC) Al2Cu, and some bulk particles in the transition layer were Cu-rich IMCs Al4Cu9 and AlCu4. There were Cu-rich IMCs Al4Cu9, AlCu4, and AlCu between the long strip Cu particle and the IMC transition layer. In the violent impact process between the Cu sheet and Al sheet, the Cu rapidly diffused in the Al matrix to form the Al-rich IMC (Al2Cu) as the primary transition layer, and the interface was high temperature and high pressure, forming a plastic flow and vortexes swirling. Some Cu particles separated from the Cu sheet and became the vortex piece during the plastic flow process, and continued to interact with the Al2Cu primary transition layer to form the secondary transition layer. This work could provide a basis for revealing the structure composition and formation mechanism of the Cu–Al EMPW joint interface transition layer.
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- 2024
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18. Distribution and correlation of refractive parameters in children with different corneal curvatures in southeast China
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Si-Yuan He, Ting He, Meng-Yue Xu, Ying-Jie Ni, Chao-Yang Hong, and Ting Shen
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school-aged children ,corneal curvature ,axial length ,spherical equivalent ,myopia screening ,Ophthalmology ,RE1-994 - Abstract
AIM: To analyze the distribution of refractive status in school-age children with different corneal curvatures (CC) and the correlation between CC and refractive status. METHODS: A total of 2214 school-aged children of grade 4 in Hangzhou who were screened for school myopia were included. Uncorrected distance visual acuity (UCDVA), non-cycloplegic refraction, axial length (AL), horizontal and vertical corneal curvature (K1, K2) were measured and spherical equivalent (SE), corneal curvature radius (CCR) and axial length/corneal radius of curvature ratio (AL/CR) were calculated. UCDVA
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- 2024
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19. Design mitochondria-specific fluorescent turn-on probes targeting G-quadruplexes for live cell imaging and mitophagy monitoring study
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Meng-Ting She, Jia-Wei Yang, Bo-Xin Zheng, Wei Long, Xuan-He Huang, Jun-Ren Luo, Ze-Xin Chen, Ao-Lu Liu, Dong-Peng Cai, Wing-Leung Wong, and Yu-Jing Lu
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General Chemical Engineering ,Environmental Chemistry ,General Chemistry ,Industrial and Manufacturing Engineering - Published
- 2022
20. Experimental investigation of femtosecond laser micro/nano processing of quartz material
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Defeng Liu, Ting She, You Wang, Yutang Dai, and Hongfeng Lin
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010302 applied physics ,Materials science ,business.industry ,Automotive industry ,Nanotechnology ,02 engineering and technology ,021001 nanoscience & nanotechnology ,Condensed Matter Physics ,Laser ,01 natural sciences ,Electronic, Optical and Magnetic Materials ,law.invention ,Brittleness ,Control and Systems Engineering ,law ,0103 physical sciences ,Femtosecond ,Micro nano ,Materials Chemistry ,Ceramics and Composites ,Electrical and Electronic Engineering ,0210 nano-technology ,business ,Aerospace ,Quartz - Abstract
Quartz material is widely used in the automotive industry, aerospace, optical and electronic fields and so on. But quartz is a hard and brittle material, which makes it very difficult to process. F...
- Published
- 2019
21. Design and synthesis of quinolinium-based derivatives targeting FtsZ for antibacterial evaluation and mechanistic study
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Dong-Xiao Zhong, Meng-Ting She, Xiao-Chun Guo, Bo-Xin Zheng, Xuan-He Huang, Yi-Han Zhang, Hooi-Leng Ser, Wing-Leung Wong, Ning Sun, and Yu-Jing Lu
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Molecular Docking Simulation ,Pharmacology ,Cytoskeletal Proteins ,Staphylococcus aureus ,Structure-Activity Relationship ,Bacterial Proteins ,Organic Chemistry ,Drug Discovery ,Staphylococcus epidermidis ,Microbial Sensitivity Tests ,General Medicine ,Amines ,Anti-Bacterial Agents - Abstract
The discovery of small molecular inhibitors targeting essential and conserved bacterial drug targets such as FtsZ protein is a promising approach to fight against multi-drug resistant bacteria. In the present study, two new series of FtsZ inhibitors based on a 1-methylquinolinium scaffold were synthesized. The inhibitors possess a variety of substituent groups including the cyclic or linear amine skeleton at the 2- and 4-position of the quinolinium ring for structure-activity relationship study. In general, the inhibitors bearing a cyclic amine substituent at the 4-position of the quinolinium ring showed better antibacterial activity (MIC down to 0.25 μg/mL) than that at the 2-position, especially against Gram-positive bacteria. Among the twenty FtsZ inhibitors examined in various assays, A3 was identified to exhibit excellent antibacterial activity against S. aureus (MIC = 0.5-1 μg/mL), S. epidermidis (MIC = 0.25 μg/mL) and E. faecium (MIC = 1-8 μg/mL). More importantly, A3 showed low hemolytic toxicity (IC
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- 2022
22. Insights from Multiple Stakeholders Regarding Adolescent Obesity in China: An Exploratory Qualitative Study
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Ying Chen PhD Student, Li Zhang MSc Student, Meng Wang MSc, Bian Lu BS, Ting Shen MSc, Renjun Gu PhD Student, Xiaoyuan Jin PhD Student, and Hongmei Wang PhD
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Public aspects of medicine ,RA1-1270 - Abstract
With a significant increase in the obesity epidemic in China, addressing adolescent obesity should be highlighted as a priority. The current qualitative study aims to explore the perspectives of key stakeholders regarding adolescent obesity, providing guidance for developing effective obesity interventions for Chinese adolescents. A total of 12 focus group discussions were convened with a range of representative stakeholders including adolescents (n = 37), parents (n = 28), and school staff (n = 21) from sample schools. Semi-structured topic guides were used for data collection. All data were transcribed verbatim and analyzed thematically. From multiple stakeholder perspectives, we finally identified 3 overarching themes ( Understanding adolescent obesity, Key healthy lifestyles, and Barriers to obesity prevention practices ) and 8 sub-themes. While participants had mixed perceptions of status and prevalence of adolescent obesity, all acknowledged the serious health consequences associated with it. As significant modifiable risk factors, unhealthy diet and physical activity were identified to be prevalent among Chinese teenagers and lead to excessive weight gain. However, a variety of individual, environmental and sociocultural factors hindered the implementation of healthy lifestyles, affecting adolescent obesity prevention and control. Given adolescent obesity is a complex, multifactorial and multilevel public issue, comprehensive lifestyle interventions are recommended that synergistically engage multiple stakeholders across key communities to fight the ongoing obesity epidemic.
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- 2024
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23. Visual improvement in a case of neuromyelitis optica spectrum disorder-related optic neuritis after 18 months of treatment with satralizumab: A case report
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Yao Qiu, Ting Shen, Wei Qiu, and Hui Yang
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Science (General) ,Q1-390 ,Social sciences (General) ,H1-99 - Abstract
Neuromyelitis optica spectrum disorder-related optic neuritis (NMOSD-ON) is an autoimmune disease that affects the astrocytes. NMOSD-ON is one of the core clinical phenotypes of neuromyelitis optica spectrum disorder and its most-common initial symptom. NMOSD-ON is characterized by severe vision loss, poor prognosis and high recurrence, mainly affecting young and middle-aged individuals. It is a challenge to know how to improve patients’ visual outcomes. In this report, we present a refractory case of NMOSD-ON treated with satralizumab after multiple conventional therapies proved ineffective. Satralizumab was found to effectively control relapses in this patient and visual improvement was found after 18 months of treatment. Given to that, satralizumab may have a potential longitudinal effect on visual improvement in NMOSD-ON.
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- 2024
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24. Bilateral ciliochoroidal detachment: Drug- or COVID-19-related? A case report and literature review
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Huiping Yao, Ting Shen, Yanwei Chen, Yufeng Zhou, Xiaoqing Liu, and Xi Shen
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Science (General) ,Q1-390 ,Social sciences (General) ,H1-99 - Abstract
Background: This report describes a case of bilateral transient myopia with a shallow anterior chamber and ciliochoroidal detachment following severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection and indapamide intake. Case presentation: A 37-year-old man with coronavirus disease 2019 (COVID-19) was referred to our department due to bilateral blurred vision. The patient had been treated with ibuprofen for fever and indapamide for uncontrolled blood pressure. After four days of indapamide intake, the patient complained of bilateral visual blurring. On ocular examination, his uncorrected visual acuity was 20/400 in both eyes. Slit-lamp examination revealed shallow anterior chambers. The following day, the patient experienced pain and redness in both eyes, which began the previous night. Ocular examination revealed a significant decrease in intraocular pressure (IOP) compared to the previous day: 11 mmHg and 12 mmHg in the right eye (OD) and left eye (OS), respectively. Slit-lamp examination revealed conjunctival injection and the presence of inflammatory cells (2+) in the shallow anterior chambers of both eyes. Ultrasound biomicroscopy revealed ciliary body detachment and B-scan ultrasonography showed peripheral shallow choroidal detachment in both eyes. Discontinuing indapamide and initiating treatment with oral prednisolone, topical tobramycin dexamethasone and tropicamide phenylephrine eye drops resulted in the rapid recovery of signs and symptoms after three days. Discussion and conclusions: Indapamide intake may contribute to bilateral ciliochoroidal detachment, with SARS-CoV-2 infection possibly increasing susceptibility to drug-induced side effects. Timely drug withdrawal and symptomatic treatment can result in a good prognosis.
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- 2024
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25. Spatiotemporal trends of atmospheric dryness during 1980–2021 in Yunnan, China
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Haiqin Qin, Yingying Tan, Ting Shen, Doug Allen Schaefer, Huafang Chen, Shaoqi Zhou, Qiang Xu, Yingmo Zhu, Jinxin Cheng, Gaojuan Zhao, and Jianchu Xu
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atmospheric dryness ,VPD ,spatiotemporal trends ,Yunnan ,ecological land types ,Forestry ,SD1-669.5 ,Environmental sciences ,GE1-350 - Abstract
Understanding the spatiotemporal patterns and variations in vapor pressure deficit (VPD) is essential for effective water resource management in the face of climate change. VPD serves as a fundamental indicator of atmospheric dryness, directly impacting plant evapotranspiration rates, thereby affecting overall ecosystem functioning. In this study, VPD changes in five subregions and four ecological types of land in Yunnan from 1980 to 2021 were investigated using data from 108 meteorological stations. We found increasing trends in annual VPD that were larger during warmer spring and summer seasons. Among the subregions, the highland subtropical southern broadleaved evergreen forest ecoregion exhibited the largest drying trend (0.04 kPa / decade), while the subtropical (eastern) humid broadleaved evergreen forest ecoregion had the smallest drying trend (0.01 kPa / decade). Among the ecological barriers, the dry-hot valleys had significantly higher increases in VPD compared to other Yunnan regions. Increases in VPD from 1990s to 2000s in several regions of Yunnan exceeded atmospheric drying trends reported elsewhere. Additionally, we documented smaller VPD declines at higher elevations. Across different ecological land types, Shrubland exhibited the largest VPD trend (0.07 kPa / decade), while Forest displayed the smallest (0.03 kPa / decade). Decreased relative humidity through time explained 65% of the increase in VPD in Yunnan, while increasing temperatures accounted for 25%. These findings provide valuable insights into climatic dynamics of Yunnan, with implications for ecological, hydrological, and atmospheric studies.
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- 2024
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26. Interplay between the glymphatic system and neurotoxic proteins in Parkinson's disease and related disorders: current knowledge and future directions
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Yumei Yue, Xiaodan Zhang, Wen Lv, Hsin-Yi Lai, and Ting Shen
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atypical parkinsonism ,glymphatic system ,magnetic resonance imaging ,neurotoxic proteins ,parkinson's disease ,Neurology. Diseases of the nervous system ,RC346-429 - Abstract
Parkinson's disease is a common neurodegenerative disorder that is associated with abnormal aggregation and accumulation of neurotoxic proteins, including α-synuclein, amyloid-β, and tau, in addition to the impaired elimination of these neurotoxic protein. Atypical parkinsonism, which has the same clinical presentation and neuropathology as Parkinson's disease, expands the disease landscape within the continuum of Parkinson's disease and related disorders. The glymphatic system is a waste clearance system in the brain, which is responsible for eliminating the neurotoxic proteins from the interstitial fluid. Impairment of the glymphatic system has been proposed as a significant contributor to the development and progression of neurodegenerative disease, as it exacerbates the aggregation of neurotoxic proteins and deteriorates neuronal damage. Therefore, impairment of the glymphatic system could be considered as the final common pathway to neurodegeneration. Previous evidence has provided initial insights into the potential effect of the impaired glymphatic system on Parkinson's disease and related disorders; however, many unanswered questions remain. This review aims to provide a comprehensive summary of the growing literature on the glymphatic system in Parkinson's disease and related disorders. The focus of this review is on identifying the manifestations and mechanisms of interplay between the glymphatic system and neurotoxic proteins, including loss of polarization of aquaporin-4 in astrocytic endfeet, sleep and circadian rhythms, neuroinflammation, astrogliosis, and gliosis. This review further delves into the underlying pathophysiology of the glymphatic system in Parkinson's disease and related disorders, and the potential implications of targeting the glymphatic system as a novel and promising therapeutic strategy.
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- 2024
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27. Novel data-driven subtypes and stages of brain atrophy in the ALS–FTD spectrum
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Ting Shen, Jacob W. Vogel, Jeffrey Duda, Jeffrey S. Phillips, Philip A. Cook, James Gee, Lauren Elman, Colin Quinn, Defne A. Amado, Michael Baer, Lauren Massimo, Murray Grossman, David J. Irwin, and Corey T. McMillan
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Amyotrophic lateral sclerosis ,Frontotemporal degeneration ,Disease heterogeneity ,SuStaIn model ,Neurology. Diseases of the nervous system ,RC346-429 - Abstract
Abstract Background TDP-43 proteinopathies represent a spectrum of neurological disorders, anchored clinically on either end by amyotrophic lateral sclerosis (ALS) and frontotemporal degeneration (FTD). The ALS–FTD spectrum exhibits a diverse range of clinical presentations with overlapping phenotypes, highlighting its heterogeneity. This study was aimed to use disease progression modeling to identify novel data-driven spatial and temporal subtypes of brain atrophy and its progression in the ALS–FTD spectrum. Methods We used a data-driven procedure to identify 13 anatomic clusters of brain volume for 57 behavioral variant FTD (bvFTD; with either autopsy-confirmed TDP-43 or TDP-43 proteinopathy-associated genetic variants), 103 ALS, and 47 ALS–FTD patients with likely TDP-43. A Subtype and Stage Inference (SuStaIn) model was trained to identify subtypes of individuals along the ALS–FTD spectrum with distinct brain atrophy patterns, and we related subtypes and stages to clinical, genetic, and neuropathological features of disease. Results SuStaIn identified three novel subtypes: two disease subtypes with predominant brain atrophy in either prefrontal/somatomotor regions or limbic-related regions, and a normal-appearing group without obvious brain atrophy. The limbic-predominant subtype tended to present with more impaired cognition, higher frequencies of pathogenic variants in TBK1 and TARDBP genes, and a higher proportion of TDP-43 types B, E and C. In contrast, the prefrontal/somatomotor-predominant subtype had higher frequencies of pathogenic variants in C9orf72 and GRN genes and higher proportion of TDP-43 type A. The normal-appearing brain group showed higher frequency of ALS relative to ALS–FTD and bvFTD patients, higher cognitive capacity, higher proportion of lower motor neuron onset, milder motor symptoms, and lower frequencies of genetic pathogenic variants. The overall SuStaIn stages also correlated with evidence for clinical progression including longer disease duration, higher King’s stage, and cognitive decline. Additionally, SuStaIn stages differed across clinical phenotypes, genotypes and types of TDP-43 pathology. Conclusions Our findings suggest distinct neurodegenerative subtypes of disease along the ALS–FTD spectrum that can be identified in vivo, each with distinct brain atrophy, clinical, genetic and pathological patterns.
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- 2023
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28. The Causal Effect of Urate Level on Female Infertility: A Mendelian Randomization Study
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Jiawei Sun, Ting Shen, Yining Guan, Yixin Jiang, and Xiaoling Xu
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urate ,female infertility ,mendelian randomization ,causal inference ,Microbiology ,QR1-502 - Abstract
Background/Objective: This study aimed to investigate the causal relationship between urate level and female infertility using Mendelian randomization (MR) analysis. Methods: To identify instrumental variables, we selected independent genetic loci associated with serum urate levels in individuals of European ancestry, utilizing data from large-scale genome-wide association studies (GWAS). The GWAS dataset included information on serum urate levels from 288,649 CKDGen participants. Female infertility data, including different etiologic classifications, consisted of 13,142 female infertility patients and 107,564 controls. We employed four MR methods, namely inverse variance weighted (IVW), MR-Egger, weighted median, and weighted model, to investigate the causal relationship between urate levels and female infertility. The Cochran Q-test was used to assess heterogeneity among single nucleotide polymorphisms (SNPs), and the MR-Egger intercept test was employed to evaluate the presence of horizontal pleiotropy. Additionally, a “leave-one-out” sensitivity analysis was conducted to examine the influence of individual SNPs on the MR study. Results: The IVW analysis demonstrated that elevated serum urate levels increased the risk of female infertility (odds ratio [OR] = 1.18, 95% confidence interval [CI]: 1.07–1.33). Furthermore, serum urate levels were found to be associated with infertility due to cervical, vaginal, or other unknown causes (OR = 1.16, 95% CI: 1.06–1.26), also confirmed by other methods. Heterogeneity among instrumental variables was assessed using Cochran’s Q-test (p < 0.05), so a random-effects IVW approach was employed in the effects model. The MR-Egger intercept test indicated no presence of horizontal pleiotropy. A “leave-one-out” sensitivity analysis was conducted, demonstrating that no individual SNP had a substantial impact on the overall findings. Conclusions: In the European population, the urate level is significantly and causally associated with an increased risk of female infertility.
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- 2024
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29. A small-sized benzothiazole-indolium fluorescent probe: the study of interaction specificity targeting c-MYC promoter G-quadruplex structures and live cell imaging
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Wing-Leung Wong, Meng Ting She, Xuan He Huang, Yu Jing Lu, Wenjie Liu, Yi Han Zhang, Yong Yu Xu, Bo Xin Zheng, Jinqiang Hou, and Wei Long
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Indoles ,Down-Regulation ,Biosensing Techniques ,010402 general chemistry ,G-quadruplex ,Ligands ,01 natural sciences ,Sensitivity and Specificity ,Catalysis ,HeLa ,03 medical and health sciences ,chemistry.chemical_compound ,Live cell imaging ,Materials Chemistry ,Humans ,heterocyclic compounds ,Amino Acid Sequence ,Benzothiazoles ,Promoter Regions, Genetic ,030304 developmental biology ,Fluorescent Dyes ,0303 health sciences ,Oncogene ,biology ,Staining and Labeling ,Optical Imaging ,Metals and Alloys ,General Chemistry ,Ligand (biochemistry) ,biology.organism_classification ,Molecular biology ,Fluorescence ,In vitro ,0104 chemical sciences ,Surfaces, Coatings and Films ,Electronic, Optical and Magnetic Materials ,DNA-Binding Proteins ,G-Quadruplexes ,Benzothiazole ,chemistry ,Ceramics and Composites ,HeLa Cells ,Transcription Factors - Abstract
A small-sized c-MYC promoter G-quadruplex selective fluorescent BZT-Indolium binding ligand was demonstrated for the first time as a highly target-specific and photostable probe for in vitro staining and live cell imaging and it was found to be able to inhibit the amplification of the c-MYC G-rich sequence (G-quadruplex) and down-regulate oncogene c-MYC expression in human cancer cells (HeLa).
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- 2020
30. Application of femtosecond laser in quartz tuning device microprocessing
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Xun Mao, Defeng Liu, Yutang Dai, You Wang, and Ting She
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Materials science ,business.industry ,Silicon dioxide ,Laser cutting ,Laser ,Piezoelectricity ,law.invention ,Crystal ,chemistry.chemical_compound ,chemistry ,law ,Femtosecond ,Optoelectronics ,Tuning fork ,business ,Quartz - Abstract
Quartz tuning fork is a kind of widely used piezoelectric device. However, as a hard and brittle material, silicon dioxide crystal, which is the core component of tuning fork, is difficult to realize high precision microprocessing. In this paper, femtosecond laser is used to process silicon dioxide crystal. The laser processing parameters which affect quality of tuning fork sidewall are theoretically analyzed, and an experimental study is carried out to optimize the technological parameters and improve the quality of tuning fork crystal. In addition, a set of processing route of quartz tuning device is designed, The tuning fork sensor manufactured has the characteristics of low cost, compact structure, low power consumption and will have a wide application prospects in the future.
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- 2020
31. Transdermal administration of farnesol-ethosomes enhances the treatment of cutaneous candidiasis induced by Candida albicans in mice
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Ting Shen, Baocheng Tian, Wei Liu, Xuesong Yang, Qi Sheng, Mengxin Li, Haiyan Wang, Xiuwen Wang, Huihui Zhou, Yanchun Han, Chen Ding, and Sixiang Sai
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farnesol ,ethosomes ,cutaneous candidiasis ,morphogenesis ,antifungal activity ,drug delivery efficacy ,Microbiology ,QR1-502 - Abstract
ABSTRACTCutaneous candidiasis, caused by Candida albicans, is a severe and frustrating condition, and finding effective treatments can be challenging. Therefore, the development of farnesol-loaded nanoparticles is an exciting breakthrough. Ethosomes are a novel transdermal drug delivery carrier that incorporates a certain concentration (10–45%) of alcohols into lipid vesicles, resulting in improved permeability and encapsulation rates compared to conventional liposomes. Farnesol is a quorum-sensing molecule involved in morphogenesis regulation in C. albicans, and these ethosomes offer a promising new approach to treating this common fungal infection. This study develops the formulation of farnesol-loaded ethosomes (farnesol-ethosomes) and assesses applications in treating cutaneous candidiasis induced by C. albicans in vitro and in vivo. Farnesol-ethosomes were successfully developed by ethanol injection method. Therapeutic properties of farnesol-ethosomes, such as particle size, zeta potential, and morphology, were well characterized. According to the results, farnesol-ethosomes demonstrated an increased inhibition effect on cells’ growth and biofilm formation in C. albicans. In Animal infection models, treating farnesol-ethosomes by transdermal administration effectively relieved symptoms caused by cutaneous candidiasis and reduced fungal burdens in quantity. We also observed that ethosomes significantly enhanced drug delivery efficacy in vitro and in vivo. These results indicate that farnesol-ethosomes can provide future promising roles in curing cutaneous candidiasis.IMPORTANCECutaneous candidiasis attributed to Candida infection is a prevalent condition that impacts individuals of all age groups. As a type of microbial community, biofilms confer benefits to host infections and mitigate the clinical effects of antifungal treatments. In C. albicans, the yeast-to-hypha transition and biofilm formation are effectively suppressed by farnesol through its modulation of multiple signaling pathway. However, the characteristics of farnesol such as hydrophobicity, volatility, degradability, and instability in various conditions can impose limitations on its effectiveness. Nanotechnology holds the potential to enhance the efficiency and utilization of this molecule. Treatment of farnesol-ethosomes by transdermal administration demonstrated a very remarkable therapeutic effect against C. albicans in infection model of cutaneous candidiasis in mice. Many patients suffering fungal skin infection will benefit from this study.
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- 2024
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32. Does decreased autophagy and dysregulation of LC3A in astrocytes play a role in major depressive disorder?
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Shen He, Yue Shi, Jinmei Ye, Jiahui Yin, Yufang Yang, Dan Liu, Ting Shen, Duan Zeng, Min Zhang, Siyuan Li, Feikang Xu, Yiyun Cai, Faming Zhao, Huafang Li, and Daihui Peng
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Neurosciences. Biological psychiatry. Neuropsychiatry ,RC321-571 - Abstract
Abstract Astrocytic dysfunction contributes to the molecular pathogenesis of major depressive disorder (MDD). However, the astrocytic subtype that mainly contributes to MDD etiology and whether dysregulated autophagy in astrocytes is associated with MDD remain unknown. Using a single-nucleus RNA sequencing (snRNA-seq) atlas, three astrocyte subtypes were identified in MDD, while C2 State-1Q astrocytes showed aberrant changes in both cell proportion and most differentially expressed genes compared with other subtypes. Moreover, autophagy pathways were commonly inhibited in astrocytes in the prefrontal cortices (PFCs) of patients with MDD, especially in C2 State-1Q astrocytes. Furthermore, by integrating snRNA-seq and bulk transcriptomic data, we found significant reductions in LC3A expression levels in the PFC region of CUMS-induced depressed mice, as well as in postmortem PFC tissues and peripheral blood samples from patients with MDD. These results were further validated by qPCR using whole-blood samples from patients with MDD and healthy controls. Finally, LC3A expression in the whole blood of patients with MDD was negatively associated with the severity of depressive symptoms. Overall, our results underscore autophagy inhibition in PFC astrocytes as a common molecular characteristic in MDD and might reveal a novel potential diagnostic marker LC3A.
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- 2023
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33. Corneal remodeling after SMILE for moderate and high myopia: short-term assessment of spatial changes in corneal volume and thickness
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Yuanpeng Wu, Ting Shen, Lingtong Tan, Ting He, Qingqing Zheng, and Chaoyang Hong
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SMILE ,Moderate myopia ,High myopia ,Corneal remodeling ,PTI ,Ophthalmology ,RE1-994 - Abstract
Abstract Purpose To evaluate the early corneal remodeling and its influencing factors after Small incision lenticule extraction (SMILE) for moderate and high myopia. Methods This was a retrospective study. Pre- and post-operative (1 week and 1, 3, 6 months) corneal volume (CV), mean keratometry (Km), and corneal thickness (CT) were measured by Scheimpflug tomography. CT at the central, thinnest point, and on concentric circles of 2, 4, and 6 mm diameter was recorded to assess corneal thickness spatial profile (CTSP) and percentage of thickness increase (PTI) in the moderate and high myopia groups, and to explore possible influencing factors. Results After SMILE, the peripheral CT decreased in the moderate myopia group and central corneal thickness (CCT) increased in the high myopia group at 1 month compared to 1 week (all P 0.05). Patients with high myopia showed greater corneal thickness changes (△CT) and higher PTI than moderate myopia (all P
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- 2023
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34. Class size and teacher effects on non-cognitive outcomes in grades K-3: a fixed effects analysis of ECLS-K:2011 data
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Spyros Konstantopoulos and Ting Shen
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Class-size ,Teacher characteristics ,Non-cognitive skills ,Fixed effects estimation ,ECLS-K:2011 ,Education (General) ,L7-991 - Abstract
Abstract This study examines the association between class size, teacher characteristics and five non-cognitive student outcomes (i.e., self-control, interpersonal skills, approaches to learning, externalizing and internalizing problem behaviors) in grades K-3. Individual fixed-effects, that control for observed and unobserved time-invariant factors, including student and school time-constant variables, are employed to analyze national data from the Early Childhood Longitudinal Study, Kindergarten Class of 2010–11 (ECLS-K:2011). Results suggest a significant linear association between reducing class size and interpersonal skills. Teacher experience is saliently, positively and significantly related with student self-control, interpersonal skills, and approaches to learning, and negatively associated with externalizing problem behaviors. Teacher education and certification were not associated with any of the five non-cognitive outcomes. Changing schools had a negative effect on student’s self-control.
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- 2023
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35. The potential of Panax notoginseng against COVID-19 infection
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Yeye Hu, Ziliang He, Wei Zhang, Zhiqiang Niu, Yanting Wang, Ji Zhang, Ting Shen, Hong Cheng, and Weicheng Hu
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Panax notoginseng ,COVID-19 ,cytokine storm ,potential therapeutics ,Botany ,QK1-989 - Abstract
The COVID-19 pandemic has changed the world and has presented the scientific community with unprecedented challenges. Infection is associated with overproduction of proinflammatory cytokines secondary to hyperactivation of the innate immune response, inducing a cytokine storm and triggering multiorgan failure and significant morbidity/mortality. No specific treatment is yet available. For thousands of years, Panax notoginseng has been used to treat various infectious diseases. Experimental evidence of P. notoginseng utility in terms of alleviating the cytokine storm, especially the cascade, and improving post-COVID-19 symptoms, suggests that P. notoginseng may serve as a valuable adjunct treatment for COVID-19 infection.
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- 2023
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36. Correction: Survey on pattern of myopia in school children in Hangzhou after the COVID-19 pandemic: a school-based vision screening study
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Ting He, Lei Yin, Qingqing Zheng, Bei He, Zhizi Xu, Tingting Hu, Yuanpeng Wu, Hu Chen, Jie Yu, and Ting Shen
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Public aspects of medicine ,RA1-1270 - Published
- 2024
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37. Social Cluster and Heritage Memory: A Study on the Space Perception of Zhaozhou Basin Horse Caravan Vernacular Architecture
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Hongyu Chen, Yi Yang, Difei Zhao, Lanxi Zhang, Zhenjie Tang, Jinhuan Tian, Ting Shen, and Yinghao Yin
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Zhaozhou basin ,horse caravan architecture ,space perception ,heritage protection ,social memory ,Building construction ,TH1-9745 - Abstract
Located in Dali, Yunnan, the Zhaozhou basin is home to many precious architectural heritages, particularly the historical horse caravan architecture. These buildings face the challenge of renewal and transformation. It is of great significance to explore the local population’s awareness of the architectural heritage of the horse caravan in order to protect the architectural heritage and facilitate rural revitalization. This study reviews the related research on “space perception”, establishes a theoretical framework of space perception under the architectural dimension, and develops hypotheses. The social cluster of typical settlements in the Zhaozhou basin is selected as the research object, and empirical analyses are carried out using SPSS and AMOS software. An analytical framework model of empirical research is constructed to evaluate the space perception of the current social population. The results of the reliability and validity tests of the questionnaire show that the CR is greater than 0.7 and that the AVE is greater than 0.5. The value of the structural equation model fitting index χ2/df is 1.863, which is less than 3. The model test results show that research hypotheses H1–H5 are supported; that is, space perception has a significant positive impact on cognition and local identity, cognition has a significant positive impact on local identity and space function, and place identity has a significant positive impact on space appeal. This study demonstrates the relationship between space perception and the architectural remains of the horse caravan, and it analyzes the human psychological perception behind the material space. The findings support the need for further conservation of the horse caravan architecture. This study further deepens the theory of space perception and its application in the study of vernacular architecture, which can provide a research path for the protection and development of vernacular architectural heritage.
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- 2024
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38. Active versus passive distraction for reducing procedural pain and anxiety in children: a meta-analysis and systematic review
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Ting Shen, Xixi Wang, Qiaoyun Xue, and Dan Chen
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Distraction ,Pain ,Anxiety ,Children ,Care ,Meta-analysis ,Pediatrics ,RJ1-570 - Abstract
Abstract Background Procedural pain is very important in clinical children care. We aimed to evaluate the effects of active versus passive distraction for reducing procedural pain and anxiety in children. Methods Two researchers searched the Web of Science, PubMed, EMBASE, Cochrane, SinoMed, Wanfang, China National Knowledge Infrastructure, Weipu databases for the randomized controlled trials(RCTs) on the active versus passive distraction affecting procedural pain and anxiety in children until May 18, 2023. The literature screening and data extraction were carried out by two researchers independently. Review Manager 5.3 software was used for data analysis. Results 13 RCTs were finally included. 553 children received active distraction intervention and 551 children received passive distraction intervention. There were no significant differences in the children self-reported procedural pain betweent active and passive distraction. The parent-reported procedural pain, medical staff-reported procedural pain, children-reported procedural anxiety, parent-reported procedural anxiety, medical staff-reported procedural anxiety in the active distraction were significant less than that of active distraction. Egger regression analysis showed that there was no publication bias in the results. Conclusions Existing evidence suggests that active distraction may be more effective in reducing operational pain and anxiety in children than passive distraction. More studies on the effects of active distraction versus passive distraction in children with larger sample size are needed in the future.
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- 2023
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39. Interfacial microstructure of multi-layered Al–Cu joint by electromagnetic pulse welding
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Yan Zhou, Chengxiang Li, Ting Shen, Dan Chen, Xianmin Wang, and Yugui Ma
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Electromagnetic pulse welding (EMPW) ,Multi-layered Al–Cu joint ,Interfacial microstructure ,Tensile lap shear ,Mining engineering. Metallurgy ,TN1-997 - Abstract
The necessity of the multi-layered aluminium (Al) tabs to copper (Cu) busbars for electric vehicle (EV) batteries is increasing. Electromagnetic pulse welding (EMPW) is applicable to the welding of conductive dissimilar/similar materials. In this work, three Al sheets and a single Cu sheet are joined by the EMPW technology. The layer-wise tensile lap shear properties of the multi-layered Al–Cu EMPW joint are evaluated. The layer-wise interfacial microstructures of the joint parallel to and perpendicular to the welding direction are studied by scanning electron microscopy (SEM) and transmission electron microscopy (TEM) and energy-dispersive spectroscopy (EDS). The results showed that every layer achieved metallurgical bonding. The Al sheets were formed to be whole. There were three types of interfaces at the Al–Cu interface parallel to the welding direction: flat interface, wave interface, and irregular wave interface. The transition zone is found at the Al–Cu interface perpendicular to the welding direction. Due to the impact, the grains near the Al–Cu interface and Al–Al interface are both refined. Thus, the well-bonded multi-layered Al–Cu joint is successfully obtained via EMPW. The results can offer help in the manufacturing of EVs.
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- 2023
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40. Perivascular spaces relate to the course and cognition of Huntington’s disease
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Xiao-Yan Li, Juan-Juan Xie, Jin-Hong Wang, Yu-Feng Bao, Yi Dong, Bin Gao, Ting Shen, Pei-Yu Huang, Hao-Chao Ying, Han Xu, Anna Wang Roe, Hsin-Yi Lai, and Zhi-Ying Wu
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Neurology. Diseases of the nervous system ,RC346-429 - Published
- 2023
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41. Acute encephalomyelitis in a 52-year-old male post messenger ribonucleic acid severe acute respiratory syndrome coronavirus 2 vaccination: a case report
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Pamela Lamisi Alebna, Muhammad Ahmad Shahid, Timothy Brannan, Ting Shen, and Valentin Marian
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Vaccine adverse effects ,Myelitis ,ADEM ,COVID vaccine ,Medicine - Abstract
Abstract Background Acute disseminated encephalomyelitis is a well-known, but rare, side effect of some vaccines, or symptom following a febrile illness. Case A 69-year-old, otherwise healthy Hispanic male presented with acute fever, confusion, and later progressive weakness after receiving the first dose of the mRNA-1273 (Moderna) severe acute respiratory syndrome coronavirus 2 vaccine. Considering the progressive deterioration of the patient, despite being on multiple immunosuppressive agents, a brain biopsy was obtained, which revealed nonspecific meningoencephalitis. Conclusion In this case, we highlight the need for a regulatory framework to assist clinicians and patients with coverage of treatment for acute disseminated encephalomyelitis. The use of intravenous immunoglobulin in conjunction with glucocorticoids seems to be an effective treatment option.
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- 2023
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42. Association between axial length and HDL in children: a hospital-based cross-sectional study
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Qingqing Zheng, Chaoyang Hong, Yaling Peng, Ting He, Yuan Lai, Lingtong Tan, and Ting Shen
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Axial length ,High-density lipoprotein ,Children ,Myopia ,Ocular ,Ophthalmology ,RE1-994 - Abstract
Abstract Background To analyze the relationship between axial length and levels of high-density lipoprotein (HDL) cholesterol in children. Methods A retrospective, hospital-based cross-sectional research with 69 right eyes from 69 children who underwent health examination by Zhejiang Provincial People’s Hospital was carried out. The participants were split into three groups: Group A (axial length 24 mm). Demographic epidemiological information, blood biochemical parameters and ophthalmic characteristics including refractive status and ocular geometric parameters were obtained and analyzed. Results 69 right eyes from 69 patients (25 males and 44 females) with a median age of 10.00 years old (IQR: 8.00–11.00 years) were included in the study. Within Group A, there were a total of 17 individuals; Group B consisted of 22 individuals; Group C included 30 individuals. The mean axial length of three groups was 22.148(0.360), 23.503(0.342) and 24.770(0.556) mm, respectively (p
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- 2023
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43. Clozapine Use in Refractory Schizophrenia Comorbid With Acute Myeloid Leukemia
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Chih-Sung Liang, Ting-She Chang, and Chia-Kuang Tsai
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Adult ,Male ,medicine.medical_specialty ,business.industry ,MEDLINE ,Psychosomatic medicine ,Leukemia, Myeloid, Acute ,Psychiatry and Mental health ,Arts and Humanities (miscellaneous) ,Family medicine ,Schizophrenia ,Humans ,Medicine ,General hospital ,China ,business ,Clozapine ,Applied Psychology ,Antipsychotic Agents - Abstract
Received January 20, 2015; revised February 23, 2015; accepted February 23, 2015. From Department of Psychiatry, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, Republic of China (T-SC, C-SL); Graduate Institute of Medical Sciences, National DefenseMedical Center, Taipei, Taiwan,Republic ofChina (C-KT,C-SL); Department of Neurology, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, Republic of China (C-KT). Send correspondence and reprint requests to Chih-Sung Liang, M.D., Department of Psychiatry, Beitou Branch, Tri-Service General Hospital, National Defense Medical Center, Taipei, Taiwan, Republic of China; e-mail: lcsyfw@gmail.com & 2015 The Academy of Psychosomatic Medicine. Published by Elsevier Inc. All rights reserved. Introduction
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- 2015
44. Photoswitchable upconversion nanoparticles with excitation-dependent emission for programmed stepwise NIR phototherapy
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Shanshan Zheng, Hengji Zhang, Ting Sheng, Yi Xiang, Jing Wang, Yao Tang, Yihan Wu, Jinliang Liu, Xiaohui Zhu, and Yong Zhang
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Therapeutics ,Drug delivery system ,Nanoparticles ,Cancer ,Science - Abstract
Summary: Programmable control over therapeutic processes in phototherapy, like photodynamic therapy (PDT), is promising but challenging. This study uses an energy segmentation-based strategy to synthesize core-multi-shell upconversion nanoparticles (UCNPs), which can release three different colors (red, green, and blue) upon exposure to different near-infrared light (1550 nm, 808 nm, and 980 nm). By combining these UCNPs with photosensitizers and nitric oxide (NO) donors, a smart “off-on” PDT nanoplatform is developed. UCNPs enable independent activation of imaging, release of NO, and generation of reactive oxygen species using specific light wavelengths. The results show that sequential NO release before PDT can greatly alleviate tumor hypoxia by reducing oxygen consumption. This stepwise approach shows potential for precise NIR light-activated and imaging-guided phototherapy.
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- 2023
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45. Retinal thickness and vascular parameters using optical coherence tomography in Alzheimer’s disease: a meta-analysis
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Samran Sheriff, Ting Shen, Sandra Abdal, Danit Saks, Mehdi Mirzaei, Veer Gupta, Nitin Chitranshi, Yuyi You, Angela Schultz, Stuart L Graham, and Vivek Gupta
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alzheimer’s disease ,foveal avascular zone ,macular thickness ,optical coherence tomography ,optical coherence tomography angiography ,retina ,retinal nerve fiber layer ,vessel density ,Neurology. Diseases of the nervous system ,RC346-429 - Abstract
Examining the retinal tissue has the potential to provide a unique method and technique to quantify Alzheimer’s disease-related changes in participants at various stages of the disease. In this meta-analysis, we aimed to investigate the association of various optical coherence tomography parameters with Alzheimer’s disease and whether retinal measurements can be used to differentiate between Alzheimer’s disease and control subjects. Scientific databases including Google Scholar, Web of Science, and PubMed were systematically searched for published articles that evaluated retinal nerve fiber layer thickness and retinal microvascular network in Alzheimer’s disease and control subjects. Seventy-three studies (5850 participants, including 2249 Alzheimer’s disease patients and 3601 controls) were included in this meta-analysis. Relative to controls, Alzheimer’s disease patients had a significantly lower global retinal nerve fiber layer thickness (standardized mean difference [SMD] = –0.79, 95% confidence intervals [CI]: –1.03 to –0.54, P < 0.00001) as well as each quadrant being thinner in Alzheimer’s disease versus controls. Regarding macular parameters, values measured by optical coherence tomography were significantly lower in Alzheimer’s disease than controls for macular thickness (pooled SMD: –0.44, 95% CI: –0.67 to –0.20, P = 0.0003), foveal thickness (pooled SMD = –0.39, 95% CI: –0.58 to –0.19, P < 0.0001), ganglion cell inner plexiform layer (SMD = –1.26, 95% CI: –2.24 to –0.27, P = 0.01) and macular volume (pooled SMD = –0.41, 95% CI –0.76 to –0.07, P = 0.02). Analysis using optical coherence tomography angiography parameters revealed mixed results between Alzheimer’s disease and controls. Superficial vessel density (pooled SMD = –0.42, 95% CI: –0.68 to –0.17, P = 0.0001) and deep vessel density (pooled SMD = –0.46, 95% CI: –0.75 to –0.18, P = 0.001) were found to be thinner in Alzheimer’s disease patients whereas the foveal avascular zone (SMD = 0.84, 95% CI: 0.17–1.51, P = 0.01) was larger in controls. Vascular density and thickness of various retinal layers were decreased in Alzheimer’s disease patients compared to controls. Our results provide evidence for optical coherence tomography technology having the potential to detect retinal and microvascular changes in patients diagnosed with Alzheimer’s disease and aid in monitoring and early diagnosis methods.
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- 2023
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- View/download PDF
46. Impact of cognition-related single nucleotide polymorphisms on brain imaging phenotype in Parkinson’s disease
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Ting Shen, Jia-Li Pu, Ya-Si Jiang, Yu-Mei Yue, Ting-Ting He, Bo-Yi Qu, Shuai Zhao, Ya-Ping Yan, Hsin-Yi Lai, and Bao-Rong Zhang
- Subjects
cognition ,imaging genetics ,magnetic resonance imaging ,multi-modality ,parkinson’s disease ,polygenic risk score ,single nucleotide polymorphism ,ultra-high field ,Neurology. Diseases of the nervous system ,RC346-429 - Abstract
Multiple single nucleotide polymorphisms may contribute to cognitive decline in Parkinson’s disease. However, the mechanism by which these single nucleotide polymorphisms modify brain imaging phenotype remains unclear. The aim of this study was to investigate the potential effects of multiple single nucleotide polymorphisms on brain imaging phenotype in Parkinson’s disease. Forty-eight Parkinson’s disease patients and 39 matched healthy controls underwent genotyping and 7T magnetic resonance imaging. A cognitive-weighted polygenic risk score model was designed, in which the effect sizes were determined individually for 36 single nucleotide polymorphisms. The correlations between polygenic risk score, neuroimaging features, and clinical data were analyzed. Furthermore, individual single nucleotide polymorphism analysis was performed to explore the main effects of genotypes and their interactive effects with Parkinson’s disease diagnosis. We found that, in Parkinson’s disease, the polygenic risk score was correlated with the neural activity of the hippocampus, parahippocampus, and fusiform gyrus, and with hippocampal-prefrontal and fusiform-temporal connectivity, as well as with gray matter alterations in the orbitofrontal cortex. In addition, we found that single nucleotide polymorphisms in α-synuclein (SNCA) were associated with white matter microstructural changes in the superior corona radiata, corpus callosum, and external capsule. A single nucleotide polymorphism in catechol-O-methyltransferase was associated with the neural activities of the lingual, fusiform, and occipital gyri, which are involved in visual cognitive dysfunction. Furthermore, DRD3 was associated with frontal and temporal lobe function and structure. In conclusion, imaging genetics is useful for providing a better understanding of the genetic pathways involved in the pathophysiologic processes underlying Parkinson’s disease. This study provides evidence of an association between genetic factors, cognitive functions, and multi-modality neuroimaging biomarkers in Parkinson’s disease.
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- 2023
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47. Diffusion along perivascular spaces as marker for impairment of glymphatic system in Parkinson’s disease
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Ting Shen, Yumei Yue, Fang Ba, Tinging He, Xiaocui Tang, Xingyue Hu, Jiali Pu, Cong Huang, Wen Lv, Baorong Zhang, and Hsin-Yi Lai
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Neurology. Diseases of the nervous system ,RC346-429 - Abstract
Abstract The brain glymphatic system is involved in the clearance of misfolding α-synuclein, the impaired glymphatic system may contribute to the progression of Parkinson’s disease (PD). We aimed to analyze the diffusion tensor image along the perivascular space (DTI-ALPS) and perivascular space (PVS) burden to reveal the relationship between the glymphatic system and PD. A cross-sectional study using a 7 T MRI of 76 PD patients and 48 controls was performed to evaluate the brain’s glymphatic system. The DTI-ALPS and PVS burden in basal ganglia were calculated. Correlation analyses were conducted between DTI-ALPS, PVS burden and clinical features. We detected lower DTI-ALPS in the PD subgroup relative to controls, and the differences were more pronounced in patients with Hoehn & Yahr stage greater than two. The decreased DTI-ALPS was only evident in the left hemisphere in patients in the early stage but involved both hemispheres in more advanced PD patients. Decreased DTI-ALPS were also correlated with longer disease duration, higher Unified Parkinson’s Disease Rating Scale motor score (UPDRS III) and UPDRS total scores, as well as higher levodopa equivalent daily dose. Moreover, the decreased DTI-ALPS correlated with increased PVS burden, and both indexes correlated with PD disease severity. This study demonstrated decreased DTI-ALPS in PD, which might initiate from the left hemisphere and progressively involve right hemisphere with the disease progression. Decreased DTI-ALPS index correlated with increased PVS burden, indicating that both metrics could provide supporting evidence of an impaired glymphatic system. MRI evaluation of the PVS burden and diffusion along PVS are potential imaging biomarkers for PD for disease progression.
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- 2022
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48. Detection Method of Series Arc Fault Based on Wavelet Transform
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Zhi-ting, She, primary, Lu, Yang, additional, and Di, Hu, additional
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- 2018
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49. Evaluation model of electromagnetic pulse welding effect based on Vc-β trajectory curve
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Yan Zhou, Chengxiang Li, Xin Shi, Pengfei Wang, Ting Shen, Yan Mi, and Yugui Ma
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Electromagnetic pulse welding (EMPW) ,Finite element (FE) ,Vc-β trajectory curve ,Welding window ,Effect ,Double coil ,Mining engineering. Metallurgy ,TN1-997 - Abstract
As a non-heat input solid-state joining technology, electromagnetic pulse welding (EMPW) has many advantages in the connection of dissimilar metals. Finite element (FE) methods are often used to design the EMPW equipment, explore the parameters and analyze the transient process. However, it is difficult to reflect the welding effect directly. This work proposed a welding effect evaluation model based on the welding window theory and the Vc-β trajectory curve obtained in the FE simulation. A FE model coupling the circuit-magnetic-structure field was established in COMSOL software to simulate the EMPW process of the Cu plate and Al plate. The Vc-β trajectory curve and welding traces were obtained according to the simulation results. An experimental platform WD-28 was used to carry out the welding experiments of Cu–Al plates at different discharging voltages. The welding traces were measured through SEM method and compared with the simulation results. According to the comparative result, the empirical constant of the calculation formula for the lower boundary of the welding window was adjusted into 1.6, so that the evaluation result was consistent with the experimental result. This work can provide a new method for evaluating directly the welding effect through the FE simulation results.
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- 2022
- Full Text
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50. A novel gene mutation of Runx2 in cleidocranial dysplasia
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Qiao-Yun Chen, Tian-Tian Mao, Dong-Jie Fu, Zhi-ming Liu, You-Jian Peng, Jun Li, and Wen-Ting She
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0301 basic medicine ,Proband ,Adult ,RUNX2 Gene ,Mutation, Missense ,Core Binding Factor Alpha 1 Subunit ,Biology ,Biochemistry ,03 medical and health sciences ,Exon ,0302 clinical medicine ,Genetics ,Missense mutation ,Humans ,Genetic Predisposition to Disease ,Histidine ,Gene ,Cleidocranial Dysplasia ,Tryptophan ,Exons ,Sequence Analysis, DNA ,equipment and supplies ,Pedigree ,030104 developmental biology ,Amino Acid Substitution ,030220 oncology & carcinogenesis ,Mutation (genetic algorithm) ,Female ,Haploinsufficiency - Abstract
Haploinsufficiency of the runt-related transcription factor 2 (Runx2) gene is widely known to be responsible for cleidocranial dysplasia (CCD). To date, more than 190 mutations in Runx2 gene have been reported to be related to CCD. In this study, a novel mutation of Runx2 gene was observed in a female with CCD. Genomic DNA was extracted from peripheral venous blood of the proband and eleven members of her family. Genetic testing on these twelve people identified a novel missense mutation (c.895 T>C, Y299H) in exon 5 of the RUNX2 gene in the proband. This mutation results in an amino acid change at codon 895 (P.Tyr 299 His.) from a tryptophan codon (TAT) to a histidine codon (CAT). Our finding may further extend the known mutation spectrum of the RUNX2 gene, and facilitate prenatal genetic diagnosis of CCD in the future.
- Published
- 2016
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