3,501 results on '"Lihua WANG"'
Search Results
2. Squalene monooxygenase (SQLE) protects ovarian cancer cells from ferroptosis
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Rong Zhang, Lingmei Zhang, Sizhe Fan, Liangliang Wang, Beibei Wang, and Lihua Wang
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Ovarian cancer ,Ferroptosis ,Squalene monooxygenase (SQLE) ,Medicine ,Science - Abstract
Abstract Altered cholesterol metabolism has been linked to a poor prognosis in various types of cancer. Cholesterol oxidation can lead to lipid peroxidation, membrane damage, and cell death. Ferroptosis is a regulated form of cell death characterized by the accumulation of lipid peroxides, which significantly inhibits the growth of ovarian cancer cells. SQLE is the primary enzyme responsible for catalyzing cholesterol lipid synthesis and is notably expressed in ovarian cancer tissues and cells. This study aims to investigate the role of squalene monooxygenase (SQLE) in ferroptosis in ovarian cancer. The protein and mRNA expression of SQLE was assessed using qRT-PCR, Western Blot, and immunohistochemistry. The association between SQLE and ferroptosis was demonstrated through analysis of TCGA and GTEx databases, TMT protein sequencing, as well as validation by qRT-PCR, Western Blot, immunofluorescence, ROS detection, and lipid peroxide detection. Animal experiments further confirmed the relationship between SQLE and ferroptosis in ovarian cancer. The protein and mRNA expression of SQLE was found to be upregulated in both ovarian cancer tissues and cell lines. Decreased SQLE expression led to ferroptosis in ovarian cancer cells, thereby increasing their sensitivity to ferroptosis inducers. Our research demonstrates that SQLE is significantly upregulated in both ovarian cancer tissues and cells. The overexpression of SQLE in ovarian cancer may facilitate tumorigenesis by conferring resistance to ferroptosis, thus shedding light on potential novel therapeutic strategies for ovarian cancer.
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- 2024
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3. Nanotechnology-Enabled PCR with Tunable Energy Dynamics
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Xinmin Zhao, Hongzhen Peng, Jun Hu, Lihua Wang, and Feng Zhang
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Chemistry ,QD1-999 - Published
- 2024
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4. MPPT control of photovoltaic array based on improved marine predator algorithm under complex solar irradiance conditions
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Haiyang Zhang, Xiaowei Wang, Jiasheng Zhang, Yingkai Ge, and Lihua Wang
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MPPT ,Zeta converter ,Complex solar irradiation conditions ,MPA ,Medicine ,Science - Abstract
Abstract In practical engineering applications, factors like dust adhesion and environmental changes can cause photovoltaic arrays to exhibit multiple peaks in output power. An optimization algorithm with global optimization capability is needed to track its maximum power. In this regard, this paper proposes an improved marine predator algorithm (IMPA) to extract the maximum power point of photovoltaic system under complex solar irradiation conditions. To overcome the issues in the traditional marine predator algorithm (MPA), the opposition-based learning(OBL) strategy is introduced in IMPA, and the sine cosine algorithm (SCA) is integrated into the iteration stage to enhance the search ability of the algorithm. Furthermore, the low-order converter in the traditional MPPT control system is replaced by the Zeta converter, which increases the operating voltage range. Ultimately, simulation results demonstrate that the MPPT based on IMPA has higher tracking efficiency and shorter response time.The experimental results also indicate the practical feasibility of this method, as well as its high level of stability and robustness.
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- 2024
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5. FOSL1-mediated LINC01566 negatively regulates CD4+ T-cell activation in myasthenia gravis
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Lifang Li, Danyang Li, Jingnan Jin, Fanfan Xu, Ni He, Yingjie Ren, Xiaokun Wang, Liting Tian, Biying Chen, Xiaoju Li, Zihong Chen, Lanxin Zhang, Lukuan Qiao, Lihua Wang, and Jianjian Wang
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lncRNA microarray chip ,LINC01566 ,Bioinformatics analysis ,CD4 + T cell ,Myasthenia gravis ,Neurology. Diseases of the nervous system ,RC346-429 - Abstract
Abstract Background Myasthenia gravis (MG) is an autoimmune disease characterized by pathogenic antibodies that target structures of the neuromuscular junction. The evidence suggests that the regulation of long noncoding RNAs (lncRNAs) that is mediated by transcription factors (TFs) plays a key role in the pathophysiology of MG. Nevertheless, the detailed molecular mechanisms of lncRNAs in MG remain largely undetermined. Methods Using microarray analysis, we analyzed the lncRNA levels in MG. By bioinformatics analysis, LINC01566 was found to potentially play an important role in MG. First, qRT‒PCR was performed to verify the LINC1566 expressions in MG patients. Then, fluorescence in situ hybridization was conducted to determine the localization of LINC01566 in CD4 + T cells. Finally, the impact of LINC01566 knockdown or overexpression on CD4 + T-cell function was also analyzed using flow cytometry and CCK-8 assay. A dual-luciferase reporter assay was used to validate the binding of the TF FOSL1 to the LINC01566 promoter. Results Based on the lncRNA microarray and differential expression analyses, we identified 563 differentially expressed (DE) lncRNAs, 450 DE mRNAs and 19 DE TFs in MG. We then constructed a lncRNA-TF-mRNA network. Through network analysis, we found that LINC01566 may play a crucial role in MG by regulating T-cell-related pathways. Further experiments indicated that LINC01566 is expressed at low levels in MG patients. Functionally, LINC01566 is primarily distributed in the nucleus and can facilitate CD4 + T-cell apoptosis and inhibit cell proliferation. Mechanistically, we hypothesized that LINC01566 may negatively regulate the expressions of DUSP3, CCR2, FADD, SIRPB1, LGALS3 and SIRPB1, which are involved in the T-cell activation pathway, to further influence the cellular proliferation and apoptosis in MG. Moreover, we found that the effect of LINC01566 on CD4 + T cells in MG was mediated by the TF FOSL1, and in vitro experiments indicated that FOSL1 can bind to the promoter region of LINC01566. Conclusions In summary, our research revealed the protective roles of LINC01566 in clinical samples and cellular experiments, illustrating the potential roles and mechanism by which FOSL1/LINC01566 negatively regulates CD4 + T-cell activation in MG.
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- 2024
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6. Liquid crystal-based reconfigurable antenna for 5G millimeter-wave
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Peng Chen, Dan Wang, Lihua Wang, Lu Liu, and Zongsheng Gan
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Medicine ,Science - Abstract
Abstract This paper proposed a frequency reconfigurable antenna that utilizes a multilayer structure of liquid crystal (LC) material. This antenna design incorporates a three-layer stacked structure to create an LC-injected cavity. The inverted microstrip line structure is designed to be in contact with the LC, serving as both a radiating element and a bias electrode. A parasitic patch is placed at the top of the antenna to enhance bandwidth. To prevent interference with DC and RF sources, a bias tee is integrated into the microstrip line input. Experimental results demonstrate that the proposed antenna exhibits excellent impedance matching and stable radiation patterns within the operational frequency range. By comparing the simulated performance of the existing LC antenna with our proposed design, the bandwidth is tripled at a center frequency of 30.3 GHz. In addition, the effective area of the proposed reconfigurable antenna (154 mm2) is 24.6% of the area of the previous reconfigurable antenna (625 mm2).
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- 2024
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7. Forest carbon stocks increase with higher dominance of ectomycorrhizal trees in high latitude forests
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Guoyong Yan, Chunnan Fan, Junqiang Zheng, Guancheng Liu, Jinghua Yu, Zhongling Guo, Wei Cao, Lihua Wang, Wenjie Wang, Qingfan Meng, Junhui Zhang, Yan Li, Jinping Zheng, Xiaoyang Cui, Xiaochun Wang, Lijian Xu, Yan Sun, Zhi Zhang, Xiao-Tao Lü, Ying Zhang, Rongjiu Shi, Guangyou Hao, Yue Feng, Jinsheng He, Qinggui Wang, Yajuan Xing, and Shijie Han
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Science - Abstract
Abstract Understanding the mechanisms controlling forest carbon accumulation is crucial for predicting and mitigating future climate change. Yet, it remains unclear whether the dominance of ectomycorrhizal (EcM) trees influences the carbon accumulation of entire forests. In this study, we analyzed forest inventory data from over 4000 forest plots across Northeast China. We find that EcM tree dominance consistently exerts a positive effect on tree, soil, and forest carbon stocks. Moreover, we observe that these positive effects are more pronounced during unfavorable climate conditions, at lower tree species richness, and during early successional stages. This underscores the potential of increasing the dominance of native EcM tree species not only to enhance carbon stocks but also to bolster resilience against climate change in high-latitude forests. Here we show that forest managers can make informed decisions to optimize carbon accumulation by considering various factors such as mycorrhizal types, climate, successional stages, and species richness.
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- 2024
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8. Prognosis of IgA nephropathy patient with proteinuria remission by supportive therapy: cohort from screening failed Chinese patients in TESTING study
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Yingman Guo, Sufang Shi, Jinghong Zhao, Caili Wang, Zhangsuo Liu, Shuxia Fu, Nan Chen, Guisen Li, Lihua Wang, Zhaohui Ni, Haitao Zhang, Lingyun Lai, Jicheng Lv, and Hong Zhang
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IgA nephropathy ,TESTING study ,intensive supportive therapy ,screening failed patients ,Diseases of the genitourinary system. Urology ,RC870-923 - Abstract
Background During the run-in phase of the TESTING study, approximately half of patients with IgA nephropathy (IgAN) were excluded due to proteinuria below 1 g/24 h after intensive supportive therapy. The long-term prognosis of these patients needs further investigation.Methods 112 screening failed patients in the TESTING study from 10 centers in China were enrolled in this retrospective study. The prognosis of 88 patients, who were excluded because of proteinuria below 1 g/24 h, was analyzed by Landmark Kaplan-Meier analysis. The composite kidney endpoint was defined by a ≥ 50% reduction in eGFR, ESKD (eGFR
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- 2024
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9. Construction of a drug, miRNA, and transcription factor regulatory network in membranous nephropathy based on oxidative stress-related genes
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Lihua Wang and Xinyan Feng
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Membranous nephropathy ,oxidative stress ,regulatory network ,core gene ,miRNA ,transcription factor ,Science (General) ,Q1-390 - Abstract
In this study, oxidative stress-related genes (OSRGs) were used to discover membranous nephropathy (MN) genes, evaluate their biological activities and molecular pathways, and develop regulatory networks for drugs, miRNAs and transcription factors. All 862 differentially expressed genes (DEGs) in the GSE108113 dataset were evaluated using the gene expression matrix. Cross-testing of 437 OSRg in the gene cards revealed 28 DE-OSRG genes. We performed the KEGG and gene ontology enrichment studies. Response to reactive oxygen species, chemical stress, oxidative stress, bound globin-hemoglobin complex, endocytic vesicle lumen, blood microparticles, conjugated globin binding, peroxidase activity and heme binding are the major GO-enriched active DE-OSRGs. As in the KEGG pathway study. After excluding the disconnected genes, 19 DE-OSRGs were introduced into the PPI network, and the top five CDE-OSRGs were found: G6PD, HBB, TP 53, KEAP 1, and PXDN. The ROC curve study shows the CDE-OS.
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- 2024
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10. An investigation of inversion method to measure the radial velocity of Kuroshio from Sentinel-1 SAR data
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Benhua Tan, Lihua Wang, Dechen Ge, Zhen Fang, Weiwei Sun, and Tian Feng
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SAR ,Doppler shift ,non-geophysical ,ocean current ,Kuroshio ,Mathematical geography. Cartography ,GA1-1776 ,Environmental sciences ,GE1-350 - Abstract
Studies on the retrieval of ocean surface current by Synthetic Aperture Radar (SAR) mainly concentrate on coastal regions with land coverage, allowing for continuous land to estimate non-geophysical Doppler shifts. As a strong western boundary in the Western Pacific, the Kuroshio flows through mostly islands or open sea, and lacks land coverage for range bias correction. We propose a non-geophysical Doppler shift correction algorithm suitable for Kuroshio observation. Three solutions matching different land coverage were adopted in the range direction, and the scalloping was removed by using average filtering in the azimuth direction. Comparison between SAR radial velocity and Global Surface Lagrangian Drifter (GLD) reveals that the correlation coefficient (R2) increase to 0.686, and root mean square error (RMSE) of 0.215 m/s after non-geophysical corrections, while the wind-wave bias corrections make R2 increase to 0.806 and RMSE decrease to 0.13 m/s. There is also a good consistency between SAR inversion and Regional Ocean Circulation Model (ROMS). Sensitivity analysis illustrates that ascending pass is more suitable for monitoring Kuroshio, and high incidence angles are less affected by ocean conditions and non-geophysical factors. The algorithm can be used in regions with discontinuous or absent land.
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- 2024
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11. Biotronik Implantable Cardioverter Defibrillator for Measurement of Intrathoracic Impedance: A Report of Two Cases
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Xuqing Ying, Xinyue Yu, Weixun Cai, Xiaomin Chen, Lihua Wang, Qingcheng Wang, and Jie Pang
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heart failure ,ICD ,transthoracic impedance ,Diseases of the circulatory (Cardiovascular) system ,RC666-701 - Abstract
ABSTRACT Objectives Two patients were received ICDs (Biotronic Iforia7 VR‐TDX). Holter analysis revealed pacing spikes, which occurred regularly at 100 ms intervals following QRS complexes, with consecutive 1024 test pulses at hourly intervals during a specific time, and the VP was 0%. Methods By analyzing the dynamic electrocardiogram and consulting relevant literature, it was found that this is a feature of the ICD that measures thoracic impedance. Results This phenomenon is a special function for the purpose of transthoracic impedance measurement, which can monitor the heart failure. Conclusions This phenomenon should not be regarded as an interference signal or an abnormal sign of pacemaker malfunction.
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- 2024
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12. The phenology and water level time-series mangrove index for improved mangrove monitoring
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Ke Huang, Gang Yang, Weiwei Sun, Bolin Fu, Chao Chen, Xiangchao Meng, Tian Feng, and Lihua Wang
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Mangroves ,Vegetation index ,Time-series characteristics ,Phenology ,Water level ,Physical geography ,GB3-5030 ,Environmental sciences ,GE1-350 - Abstract
Mangroves face decline and degradation due to human activities and natural forces, making their accurate mapping and dynamic monitoring essential. However, most of the existing mangrove indices that rely on multispectral image spectral characteristics suffer from limitations in terms of recognition accuracy and universality. Therefore, this study aimed to develop a robust and efficient Phenology and Water level Time-series Mangrove Index (PWTMI) for mangrove monitoring. PWTMI is constructed by combining spectral and temporal characteristics from dense time-series multispectral data, wherein phenology and water level time-series characteristics are extracted from NDVI and MNDWI time series. The results show that PWTMI outperforms existing multispectral-based mangrove indices and has an accuracy similar to a hyperspectral-based mangrove index, with overall accuracy ranging from 91.49% to 98.83% and F1 score ranging from 0.91 to 0.98 in four typical areas in China, indicating great potential for long time-series and large-scale mangrove monitoring.
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- 2024
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13. Drying model and drying characteristic analysis of multiphase porous medium for flake materials
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Hao Zhang, Lihua Wang, Wei Jiang, Qike Wei, and Huaiyu Wang
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Porous media ,Flake materials ,Liquid water ,Drying model ,Hot air drying ,Engineering (General). Civil engineering (General) ,TA1-2040 - Abstract
The main purpose of this paper is to optimize the drying process and gain a fundamental understanding of the movement of different phases during the drying process of cigarette flakes. Therefore, the drying model of a multiphase porous medium for cigarette flakes has been established in this paper. Binary diffusion of water vapor and gas pressure transport, as well as capillary diffusion of liquid water and gas pressure transport, are considered in this model. The non-equilibrium equations are used to calculate the evaporation rate, and the fluxes of water vapor and liquid water are also obtained. The results indicated that the stochastic stacking model is suitable for studying cigarette flake drying. Because water evaporation absorbs more heat than hot air, the temperature of the cigarette flakes decreases during the drying process. The water activity, vapor density, and vapor mole fraction of the medium layer of cigarette flakes were significantly higher than those of the upper and lower layers. The highest water vapor and liquid water fluxes occur in the medium of the drying process. Additionally, it was observed that the saturated vapor pressure was higher than the equilibrium vapor pressure and steam pressure, non-equilibrium evaporation occurs in the medium of drying. The correlation between the evaporation rate and the drying temperature and humidity of the cigarette flakes was found to be positive.
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- 2024
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14. Efficacy of WeChat-Based Digital Intervention Versus Metformin in Women With Polycystic Ovary Syndrome: Randomized Controlled Trial
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Diliqingna Dilimulati, Xiaowen Shao, Lihua Wang, Meili Cai, Yuqin Zhang, Jiayi Lu, Yao Wang, Hongying Liu, Ming Kuang, Haibing Chen, Manna Zhang, and Shen Qu
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Computer applications to medicine. Medical informatics ,R858-859.7 ,Public aspects of medicine ,RA1-1270 - Abstract
BackgroundThe first-line treatment for polycystic ovary syndrome (PCOS) is lifestyle modification. However, it is currently unknown whether digital medicine can assist patients with PCOS in maintaining a healthy lifestyle while alleviating PCOS symptoms. ObjectiveThis study aims to evaluate the efficacy of WeChat-based digital intervention versus metformin treatment in women with PCOS and insulin resistance. MethodsA total of 80 women with PCOS and insulin resistance were recruited from an endocrinology clinic and randomly assigned to receive either a WeChat-based digital intervention (n=40, 50%) or metformin (n=40, 50%) for 12 weeks. The WeChat-based digital intervention consisted of 3 modules; a coach assisted the patients in using the intervention. The primary outcome was the change in a homeostatic model assessment for insulin resistance. At baseline and after the 12-week intervention, anthropometric parameters, menstruation frequency, sex hormone levels, metabolic factors, and body fat distribution were measured in the clinic. Furthermore, self-assessed web-based questionnaires on diet, exercise, sleep, anxiety, and depression were obtained. ResultsA total of 72 participants completed the follow-up (for a 90% follow-up rate), including 35 of 40 (88%) participants from the digital intervention group and 37 of 40 (93%) participants from the metformin group. The homeostatic model assessment for insulin resistance in the digital intervention group was significantly improved after 12 weeks of treatment with a mean change of –0.93 (95% CI –1.64 to –0.23), but no statistical difference was observed between the groups (least squares mean difference –0.20; 95% CI –0.98 to 0.58; P=.62). Both digital intervention and metformin treatment significantly improved menstruation frequency (digital intervention: P
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- 2024
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15. Diagnosis of membranous nephropathy with Anti-GBM glomerulonephritis: a case series report
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Ge Liu, Xinyan Feng, Shuangyan Yu, Jie Sheng, Chunyan Liu, and Lihua Wang
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Membranous nephropathy ,Anti-glomerular basement membrane disease ,Rapidly progressive glomerulonephritis ,Diseases of the genitourinary system. Urology ,RC870-923 - Abstract
Abstract Background The concomitant occurrence of membranous nephropathy and anti-glomerular basement (anti-GBM) disease has been previously described but is extremely rare. However, delayed recognition or misdiagnosis leads to delayed treatment, resulting in worse renal and patient outcomes. Case presentation We present 3 patients with rapidly progressive glomerulonephritis (RPGN), anti-GBM and serum-positive M-type phospholipase A2 receptor (anti-PLA2R) antibody. Renal biopsies revealed PLA2R-associated membranous nephropathy with anti-GBM glomerulonephritis. We analyzed the clinical and pathological characteristics and discussed that the correct diagnosis of membranous nephropathy with anti-GBM should rely on a combination of renal biopsy findings and serological testing. Despite aggressive treatment, one patient received maintenance hemodialysis, one patient progressed to CKD 3 stage, and the other patient died of cerebral infarction. Conclusion The simultaneous occurrence of membranous nephropathy and anti-GBM disease is extremely rare. The correct diagnosis of membranous nephropathy with anti-GBM relies on a combination of renal biopsy findings and serological testing. Early diagnosis is needed to improve the renal dysfunction.
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- 2024
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16. Role of mitophagy in head and neck squamous cell carcinoma: Prognosis and immune insights
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Qin Ding, Wei Liu, Junping Pan, Lihua Wang, Wenquan Hong, Sunqin Cai, Xin Chen, Duanyu Lin, and Sufang Qiu
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Head and neck squamous cell carcinoma ,Mitophagy ,Tumor microenvironment ,CSNK2A2 ,Prognostic model ,Medical physics. Medical radiology. Nuclear medicine ,R895-920 - Abstract
Objective: To explore the correlation between mitophagy and the tumor microenvironment (TME) in patients with head and neck squamous cell carcinoma (HNSCC), with an aim to enhance therapeutic efficacy for HNSCC. Methods: A machine learning-based multigene prognostic signature was developed based on mitophagy-related differentially expressed genes (MRGs) identified in The Cancer Genome Atlas cohort. This signature was correlated with the TME using gene set enrichment analysis. The association between this prognostic signature and various immunological features of the TME was explored, including status of tumor-infiltrating immune cells, expression of immune checkpoint molecules, and the immunoscore. Immunohistochemistry validated the expression of hub gene CSNK2A2 and assessed its relationship with immunomarker expression. Quantitative PCR validated CSNK2A2 knockdown in HNSCC cell lines. Functional experiments including Transwell assays to determine cell migration and invasion, Cell Counting Kit 8 assay, and 5-ethynyl-2-deoxyuridine assay were performed to confirm the role of CSNK2A2 in HNSCC. Finally, a subcutaneous xenograft model was generated in C3H mice to validate our findings. Results: The MRG-based prognostic signature showed excellent predictive performance. High-risk patients had significantly shorter progression-free and overall survival (P
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- 2024
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17. Direct Regeneration of Spent Lithium-Ion Battery Cathodes: From Theoretical Study to Production Practice
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Meiting Huang, Mei Wang, Liming Yang, Zhihao Wang, Haoxuan Yu, Kechun Chen, Fei Han, Liang Chen, Chenxi Xu, Lihua Wang, Penghui Shao, and Xubiao Luo
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Spent LIBs ,Failure reasons ,Cathode recycling ,Direct regeneration ,Production practice ,Technology - Abstract
Highlights Analyze the primary causes of cathode failure in three representative batteries, illustrating their underlying regeneration mechanism. The latest research status of direct regeneration of spent lithium–ion batteries was reviewed and summarized in focus. The application examples of direct regeneration technology in production practice are introduced for the first time, and the problems exposed in the initial stage of industrialization were revealed.
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- 2024
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18. Factors associated with antiretroviral treatment adherence among people living with HIV in Guangdong Province, China: a cross sectional analysis
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Jun Liu, Yao Yan, Yan Li, Kaihao Lin, Yingqian Xie, Zhimin Tan, Qicai Liu, Junbin Li, Lihua Wang, Yi Zhou, Gang Yao, Shanzi Huang, Chenglong Ye, Meixi Cen, Xiaowen Liao, Lu Xu, Chi Zhang, Yubin Yan, Lin Huang, Fang Yang, Yi Yang, Xiaobing Fu, and Hongbo Jiang
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People living with HIV ,Antiretroviral treatment ,Adherence ,Associated factors ,Psychosocial effect ,Structural equation modeling ,Public aspects of medicine ,RA1-1270 - Abstract
Abstract Background Understanding factors associated with antiretroviral treatment (ART) adherence is crucial for ART success among people living with HIV (PLHIV) in the “test and treat” era. Multiple psychosocial factors tend to coexist and have a syndemic effect on ART adherence. We aimed to explore factors associated with ART adherence and the syndemic effect of multiple psychosocial factors on ART adherence among PLHIV newly starting ART in Guangdong Province, China. Methods Newly diagnosed PLHIV from six cities in Guangdong Province were recruited between May 2018 and June 2019, and then followed up from May 2019 to August 2020. Baseline and follow-up data were collected from a questionnaire and the national HIV surveillance system, the follow-up data of which were analyzed in this study. A Center for Adherence Support Evaluation (CASE) index > 10 points was defined as optimal ART adherence, which was measured via participants’ self-reported adherence during follow-up survey. Multivariable logistic regression was used to identify factors associated with ART adherence. Exploratory factor analysis (EFA) and multi-order latent variable structural equation modeling (SEM) were performed to explore the syndemic effect of multiple psychosocial factors on ART adherence. Results A total of 734 (68.53%) follow-up participants were finally included in this study among the 1071 baseline participants, of whom 91.28% (670/734) had self-reported optimal ART adherence. Unemployment (aOR = 1.75, 95%CI: 1.01–3.02), no medication reminder (aOR = 2.28, 95%CI: 1.09–4.74), low medication self-efficacy (aOR = 2.28, 95%CI: 1.27–4.10), low social cohesion (aOR = 1.82, 95%CI: 1.03–3.19), no social participation (aOR = 5.65, 95%CI: 1.71–18.63), and ART side effects (aOR = 0.46, 95%CI: 0.26–0.81) were barriers to optimal ART adherence. The EFA and second-order latent variable SEM showed a linear relationship (standardized coefficient = 0.43, P
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- 2024
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19. TOPMed imputed genomics enhances genomic atlas of the human proteome in brain, cerebrospinal fluid, and plasma
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Heng Yi, Qijun Yang, Charlie Repaci, Cheolmin Matthew Lee, Gyujin Heo, Jigyasha Timsina, Priyanka Gorijala, Chengran Yang, John Budde, Lihua Wang, Carlos Cruchaga, and Yun Ju Sung
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Science - Abstract
Abstract Comprehensive expression quantitative trait loci studies have been instrumental for understanding tissue-specific gene regulation and pinpointing functional genes for disease-associated loci in a tissue-specific manner. Compared to gene expressions, proteins more directly affect various biological processes, often dysregulated in disease, and are important drug targets. We previously performed and identified tissue-specific protein quantitative trait loci in brain, cerebrospinal fluid, and plasma. We now enhance this work by analyzing more proteins (1,300 versus 1,079) and an almost twofold increase in high quality imputed genetic variants (8.4 million versus 4.4 million) by using TOPMed reference panel. We identified 38 genomic regions associated with 43 proteins in brain, 150 regions associated with 247 proteins in cerebrospinal fluid, and 95 regions associated with 145 proteins in plasma. Compared to our previous study, this study newly identified 12 loci in brain, 30 loci in cerebrospinal fluid, and 22 loci in plasma. Our improved genomic atlas uncovers the genetic control of protein regulation across multiple tissues. These resources are accessible through the Online Neurodegenerative Trait Integrative Multi-Omics Explorer for use by the scientific community.
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- 2024
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20. CDMPred: a tool for predicting cancer driver missense mutations with high-quality passenger mutations
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Lihua Wang, Haiyang Sun, Zhenyu Yue, Junfeng Xia, and Xiaoyan Li
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Cancer ,Machine learning ,Driver missense mutation prediction ,Benchmark quality ,XGBoost ,Medicine ,Biology (General) ,QH301-705.5 - Abstract
Most computational methods for predicting driver mutations have been trained using positive samples, while negative samples are typically derived from statistical methods or putative samples. The representativeness of these negative samples in capturing the diversity of passenger mutations remains to be determined. To tackle these issues, we curated a balanced dataset comprising driver mutations sourced from the COSMIC database and high-quality passenger mutations obtained from the Cancer Passenger Mutation database. Subsequently, we encoded the distinctive features of these mutations. Utilizing feature correlation analysis, we developed a cancer driver missense mutation predictor called CDMPred employing feature selection through the ensemble learning technique XGBoost. The proposed CDMPred method, utilizing the top 10 features and XGBoost, achieved an area under the receiver operating characteristic curve (AUC) value of 0.83 and 0.80 on the training and independent test sets, respectively. Furthermore, CDMPred demonstrated superior performance compared to existing state-of-the-art methods for cancer-specific and general diseases, as measured by AUC and area under the precision-recall curve. Including high-quality passenger mutations in the training data proves advantageous for CDMPred’s prediction performance. We anticipate that CDMPred will be a valuable tool for predicting cancer driver mutations, furthering our understanding of personalized therapy.
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- 2024
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21. MFI: A mudflat index based on hyperspectral satellite images for mapping coastal mudflats
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Gang Yang, Chunchen Shao, Yangyan Zuo, Weiwei Sun, Ke Huang, Lihua Wang, Binjie Chen, Xiangchao Meng, and Yong Ge
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Coastal mudflat ,Spectral index ,Mudflat Index (MFI) ,Hyperspectral data ,ZY1-02D ,Physical geography ,GB3-5030 ,Environmental sciences ,GE1-350 - Abstract
China’s coastal mudflats, threatened by artificial reclamation and climate change, are undergoing drastic changes and their accurate mapping is important for their conservation and restoration. Traditional classification methods, which require large samples and complex classifiers, tend to have low computational efficiency and poor generalization ability; thus, they are unsuitable for the rapid and accurate extraction of coastal mudflats. This study proposes a Mudflat Index (MFI) based on hyperspectral images. MFI amplifies the difference in spectral characteristics between mudflats and other land cover types in intertidal environments, effectively improving the discrimination between coastal mudflats, salt marshes, mangroves, and muddy waters. Four typical coastal mudflat areas (i.e., the Yellow River Delta in Shandong, the Radial Sand Ridges of the South Yellow Sea in Jiangsu, Hangzhou Bay in Zhejiang, and the Qinzhou Bay-Nanliu River Estuary in Guangxi) based on ZY1-02D were selected as the study areas. The extraction accuracies in the four study areas are 97.60%, 96.88%, 97.16% and 96.97%, respectively. The further extraction experiments were calculated based on hyperspectral data from GF-5, PRISMA, and Hyperion. Sample datasets were produced using field surveys and Google Earth high-resolution imagery. Compared to the Hyperspectral Bare Soil Index (HBSI), Normalized Difference Bare Soil Index (NDBSI) and Microphytobenthos Index (MPBI), MFI demonstrates superior performance with average SDI value improvements of 0.82, 0.71 and 1.17, respectively, in distinguishing mudflats from other typical land cover types in the intertidal zone. The extraction results were also compared with those derived from Support Vector Machine (SVM) and Random Forest (RF) classifications, showing that MFI outperformed SVM and RF by an average of 1.52% and 0.58%. The results show that MFI can be applied to different hyperspectral remote sensing images and different areas of mudflat extraction. The MFI-based method is simple, fast and accurate at extracting the mudflat in the intertidal environment.
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- 2024
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22. A knowledge graph based intelligent auxiliary diagnosis and treatment system for primary tinnitus using traditional Chinese medicine
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Ziming Yin, Lihua Wang, Haopeng Zhang, Zhongling Kuang, Haiyang Yu, Ting Li, Ziwei Zhu, and Yu Guo
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Clinical decision support system ,Knowledge graph ,Pentatonic music ,Primary tinnitus ,Electronic computers. Computer science ,QA75.5-76.95 - Abstract
Primary tinnitus is a disabling disease with an unknown pathogenesis and a high incidence rate in China. Its diagnosis and treatment are complex and difficult to control. Although many treatments are available for primary tinnitus, their efficacy is often unsatisfactory. This paper proposes a new diagnosis and treatment method using knowledge graphs, and an intelligent assistant decision system is developed. To support diagnosis, a knowledge graph is created as a decision support tool using traditional Chinese medicine (TCM). Based on the knowledge graph, a model for the syndrome differentiation of tinnitus in TCM is built. At tinnitus treatment, an intelligent recommandation model for pentatonic music using knowledge graph based heterogeneous label propagation is then used to provide patients with personalized treatment plans. According to evaluation results, the proposed method achieves an accuracy of 87.1 % in tinnitus diagnosis. Compared with the control group, the recommended pentatonic music had a more obvious effect, and the efficacy of the five types of tinnitus was increased by 33.34 %, 33.33 %, 20 %, 26.67 %, 33.34 %, respectively. The system developed in this paper will help clinicians improve the diagnosis and treatment of tinnitus while reducing unnecessary medical expenses and offering significant social and economic benefits.
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- 2024
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23. Corrigendum to 'miR-30a-5p mediates ferroptosis of hippocampal neurons in chronic cerebral hypoperfusion-induced cognitive dysfunction by modulating the SIRT1/NRF2 pathway' [Brain Res. Bull. 212 (2024) 15 212 110953]
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Lihua Wang, Mingjie Li, Bing Liu, Ruihan Zheng, Xinyi Zhang, and Shuoyi Yu
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Neurosciences. Biological psychiatry. Neuropsychiatry ,RC321-571 - Published
- 2024
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24. Carbon footprint analysis of wastewater treatment processes coupled with sludge in situ reduction
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Yiyue Sun, Yi Zuo, Yanjun Shao, Lihua Wang, Lu-Man Jiang, Jiaming Hu, Chuanting Zhou, Xi Lu, Song Huang, and Zhen Zhou
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Sludge in situ reduction (SIR) ,Carbon emission ,Greenhouse gas (GHG) ,Sludge process reduction activated sludge process (SPRAS) ,Anaerobic side-stream reactor (ASSR) ,Environmental technology. Sanitary engineering ,TD1-1066 - Abstract
The goal of this study was to assess the impacts or benefits of sludge in situ reduction (SIR) within wastewater treatment processes with relation to global warming potential in wastewater treatment plants, with a comprehensive consideration of wastewater and sludge treatment. The anaerobic side-stream reactor (ASSR) and the sludge process reduction activated sludge (SPRAS), two typical SIR technologies, were used to compare the carbon footprint analysis results with the conventional anaerobic - anoxic - oxic (AAO) process. Compared to the AAO, the ASSR with a typical sludge reduction efficiency (SRE) of 30 % increased greenhouse gas (GHG) emissions by 1.1 - 1.7 %, while the SPRAS with a SRE of 74 % reduced GHG emissions by 12.3 - 17.6 %. Electricity consumption (0.025 - 0.027 kg CO2-eq/m3), CO2 emissions (0.016 - 0.059 kg CO2-eq/m3), and N2O emissions (0.009 - 0.023 kg CO2-eq/m3) for the removal of secondary substrates released from sludge decay in the SIR processes were the major contributor to the increased GHG emissions from the wastewater treatment system. By lowering sludge production and the organic matter content in the sludge, the SIR processes significantly decreased the carbon footprints associated with sludge treatment and disposal. The threshold SREs of the ASSR for GHG reduction were 27.7 % and 34.6 % for the advanced dewatering - sanitary landfill and conventional dewatering - drying-incinerating routes, respectively. Overall, the SPRAS process could be considered as a cost-effective and sustainable low-carbon SIR technology for wastewater treatment.
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- 2024
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25. Development and evaluation of two rapid lateral flow assays for on-site detection of African swine fever virus
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Lihua Wang, Juhun Kim, Hyangju Kang, Hong-Je Park, Min-Jong Lee, Sung-Hee Hong, Chang-Won Seo, Rachel Madera, Yuzhen Li, Aidan Craig, Jamie Retallick, Franco Matias-Ferreyra, Eun-Ju Sohn, and Jishu Shi
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African swine fever ,lateral flow assay ,rapid ,sensitive ,development ,Microbiology ,QR1-502 - Abstract
IntroductionAfrican swine fever (ASF) is a lethal and highly contagious transboundary animal disease with the potential for rapid international spread. In the absence of a widely available and definitively proven vaccine, rapid and early detection is critical for ASF control. The quick and user-friendly lateral flow assay (LFA) can easily be performed by following simple instructions and is ideal for on-site use. This study describes the development and validation of two LFAs for the rapid detection of ASF virus (ASFV) in pig serum.MethodsThe highly immunogenic antigens (p30 and p72) of ASFV Georgia 2007/1 (genotype II) were expressed in plants (Nicotiana benthamiana) and were used to immunize BALB/c mice to generate specific monoclonal antibodies (mAbs) against the p30 and p72 proteins. mAbs with the strongest binding ability to each protein were used to develop p30_LFA and p72_LFA for detecting the respective ASFV antigens. The assays were first evaluated using a spike-in test by adding the purified p30 or p72 protein to a serum sample from a healthy donor pig. Further validation of the tests was carried out using serum samples derived from experimentally infected domestic pigs, field domestic pigs, and feral pigs, and the results were compared with those of ASFV real-time PCR.Resultsp30_LFA and p72_LFA showed no cross-reaction with common swine viruses and delivered visual results in 15 min. When testing with serially diluted proteins in swine serum samples, analytical sensitivity reached 10 ng/test for p30_LFA and 20 ng/test for p72_LFA. Using real-time PCR as a reference, both assays demonstrated high sensitivity (84.21% for p30_LFA and 100% for p72_LFA) with experimentally ASFV-infected pig sera. Specificity was 100% for both LFAs using a panel of PBS-inoculated domestic pig sera. Excellent specificity was also shown for field domestic pig sera (100% for p30_LFA and 93% for p72_LFA) and feral pig sera (100% for both LFAs).ConclusionThe results obtained in this study suggest that p30_LFA and p72_LFA hold promise as rapid, sensitive, user-friendly, and field-deployable tools for ASF control, particularly in settings with limited laboratory resources.
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- 2024
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26. Effects of dietary supplementation of Enterococcus faecium postbiotics on growth performance and intestinal health of growing male mink
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Lin Cao, Fengxue Sun, Qifeng Ren, Ziyi Jiang, Jian Chen, Yalin Li, and Lihua Wang
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mink ,postbiotics ,Enterococcus faecium ,nutrients digestibility ,intestinal morphology ,immune status ,Veterinary medicine ,SF600-1100 - Abstract
Recent studies have demonstrated that postbiotics possess bioactivities comparable to those of probiotics. Therefore, our experiment aimed to evaluate the effects of postbiotics derived from Enterococcus faecium on the growth performance and intestinal health of growing male minks. A total of 120 growing male minks were randomly assigned to 4 groups, each with 15 replicates of 2 minks. The minks in the 4 groups were fed a basal diet supplemented with 0 (control), 0.05, 0.1, and 0.15% postbiotics derived from E. faecium (PEF), respectively. Compared to the control, PEF improved feed/gain (F/G) during the first 4 weeks and the entire 8 weeks of the study (p
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- 2024
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27. Factors influencing ruminative thinking behaviours in nurses: a cross-sectional study of 858 subjects in a tertiary care hospital
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Hui Tang, Lihua Wang, Huling Cao, Aiming Ding, Jianyu Cao, Haiyan Mao, Guihong Yang, and Junhua Gu
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Psychiatry ,RC435-571 - Published
- 2024
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28. Editorial: Advances and insights in the diagnosis of viral infections and vaccines development in animals
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Lihua Wang, Jingqiang Ren, Jianke Wang, Hewei Zhang, and Jishu Shi
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advances ,insights ,diagnosis ,vaccine ,viral infection ,animal ,Microbiology ,QR1-502 - Published
- 2024
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29. Dynamic Interface-Assisted Rapid Self-Assembly of DNA Origami-Framed Anisotropic Nanoparticles
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Yanfei Qu, Fengyun Shen, Hongzhen Peng, Guifang Chen, Lihua Wang, and Lele Sun
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Chemistry ,QD1-999 - Published
- 2024
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30. Clickable X‑ray Nanoprobes for Nanoscopic Bioimaging of Cellular Structures
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Qiaowei Tang, Dapeng Yin, Yubo Liu, Jichao Zhang, Yong Guan, Huating Kong, Yiliu Wang, Xiangzhi Zhang, Jiang Li, Lihua Wang, Jun Hu, Xiaoqing Cai, and Ying Zhu
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Chemistry ,QD1-999 - Published
- 2024
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31. Effect of the Ni/Co ratio on the structural and initial oxidation properties of NiCo-based superalloys revealed by in situ microscopy
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Yunsong Zhao, Mingzhe Liu, Junbo Zhao, Hui Lu, Shanshan Liu, Yanhui Chen, Dawei Pang, Lilin Xie, Ang Li, and Lihua Wang
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NiCo-Based superalloys ,γ/γ′ structure ,In situ oxidation ,ETEM ,Ni/Co ratio ,Mining engineering. Metallurgy ,TN1-997 - Abstract
Oxidation is one of the main failure modes of superalloys, and the initial oxidation of a superalloy provides clues for its failure analysis. NiCo-based superalloys exhibit superior mechanical properties, but their oxidation behaviour is still debatable, especially in terms of the ratio of Ni/Co. Here, we show the effect of the Ni/Co ratio on the initial oxidation behaviour at the nanoscale by in situ environmental transmission electron microscopy (ETEM), which provides the initial microstructural changes in the γ/γ′ structure-based alloy. The results indicate that Ni-rich alloys exhibit better structural stability at high temperatures than Ni-deficient alloys. A high content of Ni promotes the formation of a dense oxide layer, inhibits the oxidation rate, and improves the oxidation resistance. This result will help to elucidate the basic process of oxide formation in NiCo-based single-crystal superalloys and provide ideas for improving their oxidation resistance for alloy design.
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- 2024
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32. Monitoring of Perioperative Microcirculation Dysfunction by Near-Infrared Spectroscopy for Neurological Deterioration and Prognosis of Aneurysmal Subarachnoid Hemorrhage: An Observational, Longitudinal Cohort Study
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Shunyan Yang, Binbin Tan, Jie Lin, Xia Wang, Congying Fu, Kaishan Wang, Jinyu Qian, Jin Liu, Jishu Xian, Liang Tan, Hua Feng, Yujie Chen, and Lihua Wang
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Subarachnoid hemorrhage ,Microcirculation ,Early brain injury ,Regional cerebral oxygen saturation ,Near-infrared spectroscopy ,Neurology. Diseases of the nervous system ,RC346-429 - Abstract
Abstract Introduction No evidence has established a direct causal relationship between early microcirculation disturbance after aneurysmal subarachnoid hemorrhage (aSAH) and neurological function prognosis, which is the key pathophysiological mechanism of early brain injury (EBI) in patients with aSAH. Methods A total of 252 patients with aSAH were enrolled in the Neurosurgical Intensive Care Unit of Southwest Hospital between January 2020 and December 2022 and divided into the no neurological deterioration, early neurological deterioration, and delayed neurological deterioration groups. Indicators of microcirculation disorders in EBI included regional cerebral oxygen saturation (rSO2) measured by near-infrared spectroscopy (NIRS), brain oxygen monitoring, and other clinical parameters for evaluating neurological function and determining the prognosis of patients with aSAH. Results Our data suggest that the rSO2 is generally lower in patients who develop neurological deterioration than in those who do not and that there is at least one time point in the population of patients who develop neurological deterioration where left and right cerebral hemisphere differences can be significantly monitored by NIRS. An unordered multiple-classification logistic regression model was constructed, and the results revealed that multiple factors were effective predictors of early neurological deterioration: reoperation, history of brain surgery, World Federation of Neurosurgical Societies (WFNS) grade 4–5, Fisher grade 3–4, SAFIRE grade 3–5, abnormal serum sodium and potassium levels, and reduced rSO2 during the perioperative period. However, for delayed neurological deterioration in patients with aSAH, only a history of brain surgery and perioperative RBC count were predictive indicators. Conclusions The rSO2 concentration in patients with neurological deterioration is generally lower than that in patients without neurological deterioration, and at least one time point in the population with neurological deterioration can be significantly monitored via NIRS. However, further studies are needed to determine the role of microcirculation and other predictive factors in the neurocritical management of EBI after aSAH, as these factors can reduce the incidence of adverse outcomes and mortality during hospitalization.
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- 2024
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33. Small- and medium-sized rice fields identification in hilly areas using all available sentinel-1/2 images
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Lihua Wang, Hao Ma, Yanghua Gao, Shengbo Chen, Songling Yang, Peng Lu, Li Fan, and Yumiao Wang
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SAR ,Multi spectral instrument ,Rice phenological period ,Rice standard spectral curve ,Spectral similarity vector algorithm ,Plant culture ,SB1-1110 ,Biology (General) ,QH301-705.5 - Abstract
Abstract Background Mastering the spatial distribution and planting area of paddy can provide a scientific basis for monitoring rice production, and planning grain production layout. Previous remote sensing studies on paddy concentrated in the plain areas with large-sized fields, ignored the fact that rice is also widely planted in vast hilly regions. In addition, the land cover types here are diverse, rice fields are characterized by a scattered and fragmented distribution with small- or medium-sized, which pose difficulties for high-precision rice recognition. Methods In the paper, we proposed a solution based on Sentinel-1 SAR, Sentinel-2 MSI, DEM, and rice calendar data to focus on the rice fields identification in hilly areas. This solution mainly included the construction of rice feature dataset at four crucial phenological periods, the generation of rice standard spectral curve, and the proposal of spectral similarity algorithm for rice identification. Results The solution, integrating topographical and rice phenological characteristics, manifested its effectiveness with overall accuracy exceeding 0.85. Comparing the results with UAV, it presented that rice fields with an area exceeding 400 m2 (equivalent to 4 pixels) exhibited a recognition success rate of over 79%, which reached to 89% for fields exceeding 800 m2. Conclusions The study illustrated that the proposed solution, integrating topographical and rice phenological characteristics, has the capability for charting various rice field sizes with fragmented and dispersed distribution. It also revealed that the synergy of Sentinel-1 SAR and Sentinel-2 MSI data significantly enhanced the recognition ability of rice paddy fields ranging from 400 m2 to 2000 m2.
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- 2024
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34. Engineering Bacterial Biofilm Development and Structure via Regulation of Silver Nanoparticle Density in Graphene Oxide Composite Coating
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Shanshan Wang, Shima Liu, Shuting Cao, Yunhui Bao, Lihua Wang, Zhengliang Eric He, Jiang Li, Yi Zhou, and Min Lv
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Chemistry ,QD1-999 - Published
- 2024
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35. Proteo-genomics of soluble TREM2 in cerebrospinal fluid provides novel insights and identifies novel modulators for Alzheimer’s disease
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Lihua Wang, Niko-Petteri Nykänen, Daniel Western, Priyanka Gorijala, Jigyasha Timsina, Fuhai Li, Zhaohua Wang, Muhammad Ali, Chengran Yang, Menghan Liu, William Brock, Marta Marquié, Mercè Boada, Ignacio Alvarez, Miquel Aguilar, Pau Pastor, Agustín Ruiz, Raquel Puerta, Adelina Orellana, Jarod Rutledge, Hamilton Oh, Michael D Greicius, Yann Le Guen, Richard J. Perrin, Tony Wyss-Coray, Angela Jefferson, Timothy J. Hohman, Neill Graff-Radford, Hiroshi Mori, Alison Goate, Johannes Levin, Yun Ju Sung, and Carlos Cruchaga
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Neurology. Diseases of the nervous system ,RC346-429 ,Geriatrics ,RC952-954.6 - Abstract
Abstract Triggering receptor expressed on myeloid cells 2 (TREM2) plays a critical role in microglial activation, survival, and apoptosis, as well as in Alzheimer’s disease (AD) pathogenesis. We previously reported the MS4A locus as a key modulator for soluble TREM2 (sTREM2) in cerebrospinal fluid (CSF). To identify additional novel genetic modifiers of sTREM2, we performed the largest genome-wide association study (GWAS) and identified four loci for CSF sTREM2 in 3,350 individuals of European ancestry. Through multi-ethnic fine mapping, we identified two independent missense variants (p.M178V in MS4A4A and p.A112T in MS4A6A) that drive the association in MS4A locus and showed an epistatic effect for sTREM2 levels and AD risk. The novel TREM2 locus on chr 6 contains two rare missense variants (rs75932628 p.R47H, P=7.16×10-19; rs142232675 p.D87N, P=2.71×10-10) associated with sTREM2 and AD risk. The third novel locus in the TGFBR2 and RBMS3 gene region (rs73823326, P=3.86×10-9) included a regulatory variant with a microglia-specific chromatin loop for the promoter of TGFBR2. Using cell-based assays we demonstrate that overexpression and knock-down of TGFBR2, but not RBMS3, leads to significant changes of sTREM2. The last novel locus is located on the APOE region (rs11666329, P=2.52×10-8), but we demonstrated that this signal was independent of APOE genotype. This signal colocalized with cis-eQTL of NECTIN2 in the brain cortex and cis-pQTL of NECTIN2 in CSF. Overexpression of NECTIN2 led to an increase of sTREM2 supporting the genetic findings. To our knowledge, this is the largest study to date aimed at identifying genetic modifiers of CSF sTREM2. This study provided novel insights into the MS4A and TREM2 loci, two well-known AD risk genes, and identified TGFBR2 and NECTIN2 as additional modulators involved in TREM2 biology.
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- 2024
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36. The development of the neurocritical care specialty in China based on the analysis of neurocritical care unit volume and quality
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Yingying Su, Junfang Teng, Suyue Pan, Wen Jiang, Furong Wang, Fei Tian, Jing Jing, Huijin Huang, Jie Cao, Huaiqiang Hu, Liping Liu, Wei Li, Cheng Liang, Liansheng Ma, Xuegang Meng, Linyu Tian, Changqing Wang, Lihua Wang, Yan Wang, Zhenhai Wang, Zhiqiang Wang, Zunchun Xie, Mingyao You, Jun Yuan, Chaosheng Zeng, Li Zeng, Le Zhang, Lei Zhang, Xin Zhang, Yongwei Zhang, Bin Zhao, Saijun Zhou, and Zhonghe Zhou
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full-time doctors ,full-time nurses ,neurocritical care unit ,neurocritical care ,Medical technology ,R855-855.5 ,Diseases of the circulatory (Cardiovascular) system ,RC666-701 - Abstract
PURPOSE: Through three neurocritical care unit (NCCU) surveys in China, we tried to understand the development status of neurocritical care and clarify its future development. METHODS: Using a cross-sectional survey method and self-report questionnaires, the number and quality of NCCUs were investigated through three steps: administering the questionnaire, sorting the survey data, and analyzing the survey data. RESULTS: At the second and third surveys, the number of NCCUs (76/112/206) increased by 47% and 84%, respectively. The NCCUs were located in tertiary grade A hospitals or teaching hospitals (65/100/181) in most provinces (24/28/29). The numbers of full-time doctors (359/668/1337) and full-time nurses (904/1623/207) in the NCCUs increased, but the doctor–bed ratio and nurse–bed ratio were still insufficient (0.4:1 and 1.3:1). CONCLUSION: In the past 20 years, the growth rate of NCCUs in China has accelerated, while the allocation of medical staff has been insufficient. Although most NCCU hospital bed facilities and instruments and equipment tend to be adequate, there are obvious defects in some aspects of NCCUs.
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- 2024
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37. Homolytic H2 dissociation for enhanced hydrogenation catalysis on oxides
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Chengsheng Yang, Sicong Ma, Yongmei Liu, Lihua Wang, Desheng Yuan, Wei-Peng Shao, Lunjia Zhang, Fan Yang, Tiejun Lin, Hongxin Ding, Heyong He, Zhi-Pan Liu, Yong Cao, Yifeng Zhu, and Xinhe Bao
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Science - Abstract
Abstract The limited surface coverage and activity of active hydrides on oxide surfaces pose challenges for efficient hydrogenation reactions. Herein, we quantitatively distinguish the long-puzzling homolytic dissociation of hydrogen from the heterolytic pathway on Ga2O3, that is useful for enhancing hydrogenation ability of oxides. By combining transient kinetic analysis with infrared and mass spectroscopies, we identify the catalytic role of coordinatively unsaturated Ga3+ in homolytic H2 dissociation, which is formed in-situ during the initial heterolytic dissociation. This site facilitates easy hydrogen dissociation at low temperatures, resulting in a high hydride coverage on Ga2O3 (H/surface Ga3+ ratio of 1.6 and H/OH ratio of 5.6). The effectiveness of homolytic dissociation is governed by the Ga-Ga distance, which is strongly influenced by the initial coordination of Ga3+. Consequently, by tuning the coordination of active Ga3+ species as well as the coverage and activity of hydrides, we achieve enhanced hydrogenation of CO2 to CO, methanol or light olefins by 4-6 times.
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- 2024
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38. Design of a High-Power Nanosecond Electromagnetic Pulse Radiation System for Verifying Spaceborne Detectors
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Tianchi Zhang, Zongxiang Li, Changjiao Duan, Lihua Wang, Yongli Wei, Kejie Li, Xin Li, and Baofeng Cao
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high power ,nanosecond electromagnetic pulse ,radiation system ,ionospheric propagation ,spaceborne detector verification ,Chemical technology ,TP1-1185 - Abstract
The Spaceborne Global Lightning Location Network (SGLLN) serves the purpose of identifying transient lightning events occurring beneath the ionosphere, playing a significant role in detecting and warning of disaster weather events. To ensure the effective functioning of the wideband electromagnetic pulse detector, which is a crucial component of the SGLLN, it must be tested and verified with specific signals. However, the inherent randomness and unpredictability of lightning occurrences pose challenges to this requirement. Consequently, a high-power electromagnetic pulse radiation system with a 20 m aperture reflector is designed. This system is capable of emitting nanosecond electromagnetic pulse signals under pre-set spatial and temporal conditions, providing a controlled environment for assessing the detection capabilities of SGLLN. In the design phase, an exponentially TEM feed antenna has been designed firstly based on the principle of high-gain radiation. The feed antenna adopts a pulser-integrated design to mitigate insulation risks, and it is equipped with an asymmetric protective loading to reduce reflected energy by 85.7%. Moreover, an innovative assessment method for gain loss, based on the principle of Love’s equivalence, is proposed to quantify the impact of feed antenna on the radiation field. During the experimental phase, a specialized E-field sensor is used in the far-field experiment at a distance of 400 m. The measurements indicate that at this distance, the signal has a peak field strength of 2.2 kV/m, a rise time of 1.9 ns, and a pulse half-width of 2.5 ns. Additionally, the beamwidth in the time domain is less than 10°. At an altitude of 500 km, the spaceborne detector records a signal with a peak field strength of approximately 10 mV/m. Particularly, this signal transformed into a nonlinear frequency-modulated signal in the microsecond range across its frequency spectrum, which is consistent with the law of radio wave propagation in the ionosphere. This study offers a stable and robust radiation source for verifying spaceborne detectors and establishes an empirical foundation for investigating the impact of the ionosphere on signal propagation characteristics.
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- 2024
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39. COVID‐19 and cognitive impairment: From evidence to SARS‐CoV‐2 mechanism
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Haodong Pan, Jingyan Niu, Lin Feng, Yue Yin, Chun Dang, Yaoheng Lu, Lei Li, Jianguang Ji, Kuikun Yang, Lihua Wang, and Qian Li
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cognitive impairment ,COVID‐19 ,long COVID ,neurological deficit ,SARS‐CoV‐2 ,Neurology. Diseases of the nervous system ,RC346-429 - Abstract
Abstract Caused by severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2), coronavirus disease 2019 (COVID‐19) primarily manifests as respiratory dysfunction. However, emerging evidence suggests SARS‐CoV‐2 can invade the brain, leading to cognitive impairment (CI). It may spread to other brain regions through transsynaptic neurons, including the olfactory, optic, and vagus nerves. Moreover, it may invade the central nervous system through blood transmission or the lymphatic system. This review summarizes the neuroimaging evidence from clinical and imaging studies of COVID‐19‐associated CIs, including magnetic resonance imaging and 18F‐fluorodeoxyglucose positron emission tomography‐computed tomography. The mechanisms underlying COVID‐19‐associated CIs are currently being actively investigated. They include nonimmune effects, such as viral proteins, tissue hypoxia, hypercoagulability, and pathological changes in neuronal cells, and immune effects, such as microglia and astrocyte activation, peripheral immune cell infiltration, blood‐brain barrier impairment, cytokine network dysregulation, and intestinal microbiota. Inflammation is the central feature. Both central and systemic inflammation may cause acute and persistent neurological changes, and existing evidence indicates that inflammation underlies the elevated risk of Alzheimer's disease. Finally, potential therapeutic options for COVID‐19‐associated CIs are discussed. In‐depth research into the pathological mechanisms is still needed to help develop new therapies.
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- 2024
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40. Explainable AI Method for Tinnitus Diagnosis via Neighbor-Augmented Knowledge Graph and Traditional Chinese Medicine: Development and Validation Study
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Ziming Yin, Zhongling Kuang, Haopeng Zhang, Yu Guo, Ting Li, Zhengkun Wu, and Lihua Wang
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Computer applications to medicine. Medical informatics ,R858-859.7 - Abstract
BackgroundTinnitus diagnosis poses a challenge in otolaryngology owing to an extremely complex pathogenesis, lack of effective objectification methods, and factor-affected diagnosis. There is currently a lack of explainable auxiliary diagnostic tools for tinnitus in clinical practice. ObjectiveThis study aims to develop a diagnostic model using an explainable artificial intelligence (AI) method to address the issue of low accuracy in tinnitus diagnosis. MethodsIn this study, a knowledge graph–based tinnitus diagnostic method was developed by combining clinical medical knowledge with electronic medical records. Electronic medical record data from 1267 patients were integrated with traditional Chinese clinical medical knowledge to construct a tinnitus knowledge graph. Subsequently, weights were introduced, which measured patient similarity in the knowledge graph based on mutual information values. Finally, a collaborative neighbor algorithm was proposed, which scored patient similarity to obtain the recommended diagnosis. We conducted 2 group experiments and 1 case derivation to explore the effectiveness of our models and compared the models with state-of-the-art graph algorithms and other explainable machine learning models. ResultsThe experimental results indicate that the method achieved 99.4% accuracy, 98.5% sensitivity, 99.6% specificity, 98.7% precision, 98.6% F1-score, and 99% area under the receiver operating characteristic curve for the inference of 5 tinnitus subtypes among 253 test patients. Additionally, it demonstrated good interpretability. The topological structure of knowledge graphs provides transparency that can explain the reasons for the similarity between patients. ConclusionsThis method provides doctors with a reliable and explainable diagnostic tool that is expected to improve tinnitus diagnosis accuracy.
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- 2024
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41. miR-30a-5p mediates ferroptosis of hippocampal neurons in chronic cerebral hypoperfusion-induced cognitive dysfunction by modulating the SIRT1/NRF2 pathway
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Lihua Wang, Mingjie Li, Bing Liu, Ruihan Zheng, Xinyi Zhang, and Shuoyi Yu
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Chronic cerebral hypoperfusion ,Cognitive dysfunction ,MiR-30a-5p ,SIRT1 ,NRF2 ,Ferroptosis ,Neurosciences. Biological psychiatry. Neuropsychiatry ,RC321-571 - Abstract
Objective: Chronic cerebral hypoperfusion (CCH) is a common cause of brain dysfunction. As a microRNA (also known as miRNAs or miRs), miR-30a-5p participates in neuronal damage and relates to ferroptosis. We explored the in vivo and in vitro effects and functional mechanism of miR-30a-5p in CCH-triggered cognitive impairment through the silent information regulator 1 (SIRT1)/nuclear factor erythroid 2-related factor 2 (NRF2) pathway. Methods: After 1 month of CCH modeling through bilateral common carotid artery stenosis, mice were injected with 2 μL antagomir (also known as anti-miRNAs) miR-30a-5p, with cognitive function evaluated by Morris water maze and novel object recognition tests. In vitro HT-22 cell oxygen glucose deprivation (OGD) model was established, followed by miR-30a-5p inhibitor and/or si-SIRT1 transfections, with Fe2+ concentration, malonaldehyde (MDA) and glutathione (GSH) contents, reactive oxygen species (ROS), miR-30a-5p and SIRT1 and glutathione peroxidase 4 (GPX4) protein levels, NRF2 nuclear translocation, and miR-30a-5p-SIRT1 targeting relationship assessed. Results: CCH-induced mice showed obvious cognitive impairment, up-regulated miR-30a-5p, and down-regulated SIRT1. Ferroptosis occurred in hippocampal neurons, manifested by elevated Fe2+ concentration and ROS and MDA levels, mitochondrial atrophy, and diminished GSH content. Antagomir miR-30a-5p or miR-30a-5p inhibitor promoted SIRT1 expression and NRF2 nuclear translocation, increased GPX4, cell viability and GSH content, and reduced Fe2+ concentration and ROS and MDA levels. miR-30a-5p negatively regulated SIRT1. In vitro, miR-30a-5p knockout increased NRF2 nuclear translocation by up-regulating SIRT1, inhibiting OGD-induced ferroptosis in HT-22 cells. Conclusion: miR-30a-5p induces hippocampal neuronal ferroptosis and exacerbates post-CCH cognitive dysfunction by targeting SIRT1 and reducing NRF2 nuclear translocation.
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- 2024
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42. Chromatin Remodeling in Patient‐Derived Colorectal Cancer Models
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Kun Xiang, Ergang Wang, John Mantyh, Gabrielle Rupprecht, Marcos Negrete, Golshid Sanati, Carolyn Hsu, Peggy Randon, Anders Dohlman, Kai Kretzschmar, Shree Bose, Nicholas Giroux, Shengli Ding, Lihua Wang, Jorge Prado Balcazar, Qiang Huang, Pasupathi Sundaramoorthy, Rui Xi, Shannon Jones McCall, Zhaohui Wang, Chongming Jiang, Yubin Kang, Scott Kopetz, Gregory E. Crawford, Steven M. Lipkin, Xiao‐Fan Wang, Hans Clevers, David Hsu, and Xiling Shen
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ATAC‐seq, Colorectal Cancer (CRC) ,Patient‐Derived Models of Cancer (PDMC) ,Patient‐Derived Organoids (PDO) ,Patient‐Derived Xenografts (PDX) ,Science - Abstract
Abstract Patient‐Derived Organoids (PDO) and Xenografts (PDX) are the current gold standards for patient‐derived models of cancer (PDMC). Nevertheless, how patient tumor cells evolve in these models and the impact on drug response remains unclear. Herein, the transcriptomic and chromatin accessibility landscapes of matched colorectal cancer (CRC) PDO, PDX, PDO‐derived PDX (PDOX), and original patient tumors (PT) are compared. Two major remodeling axes are discovered. The first axis delineates PDMC from PT, and the second axis distinguishes PDX and PDO. PDOX are more similar to PDX than PDO, indicating the growth environment is a driving force for chromatin adaptation. Transcription factors (TF) that differentially bind to open chromatins between matched PDO and PDOX are identified. Among them, KLF14 and EGR2 footprints are enriched in PDOX relative to matched PDO, and silencing of KLF14 or EGR2 promoted tumor growth. Furthermore, EPHA4, a shared downstream target gene of KLF14 and EGR2, altered tumor sensitivity to MEK inhibitor treatment. Altogether, patient‐derived CRC cells undergo both common and distinct chromatin remodeling in PDO and PDX/PDOX, driven largely by their respective microenvironments, which results in differences in growth and drug sensitivity and needs to be taken into consideration when interpreting their ability to predict clinical outcome.
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- 2024
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43. Discovery and validation of molecular patterns and immune characteristics in the peripheral blood of ischemic stroke patients
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Lin Cong, Yijie He, Yun Wu, Ze Li, Siwen Ding, Weiwei Liang, Xingjun Xiao, Huixue Zhang, and Lihua Wang
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Biomakers ,Immune characteristics ,Competing endogenous RNA network analysis ,Diagnosis model ,Machine-learning ,Ischemic stroke ,Medicine ,Biology (General) ,QH301-705.5 - Abstract
Background Stroke is a disease with high morbidity, disability, and mortality. Immune factors play a crucial role in the occurrence of ischemic stroke (IS), but their exact mechanism is not clear. This study aims to identify possible immunological mechanisms by recognizing immune-related biomarkers and evaluating the infiltration pattern of immune cells. Methods We downloaded datasets of IS patients from GEO, applied R language to discover differentially expressed genes, and elucidated their biological functions using GO, KEGG analysis, and GSEA analysis. The hub genes were then obtained using two machine learning algorithms (least absolute shrinkage and selection operator (LASSO) and support vector machine-recursive feature elimination (SVM-RFE)) and the immune cell infiltration pattern was revealed by CIBERSORT. Gene-drug target networks and mRNA-miRNA-lncRNA regulatory networks were constructed using Cytoscape. Finally, we used RT-qPCR to validate the hub genes and applied logistic regression methods to build diagnostic models validated with ROC curves. Results We screened 188 differentially expressed genes whose functional analysis was enriched to multiple immune-related pathways. Six hub genes (ANTXR2, BAZ2B, C5AR1, PDK4, PPIH, and STK3) were identified using LASSO and SVM-RFE. ANTXR2, BAZ2B, C5AR1, PDK4, and STK3 were positively correlated with neutrophils and gamma delta T cells, and negatively correlated with T follicular helper cells and CD8, while PPIH showed the exact opposite trend. Immune infiltration indicated increased activity of monocytes, macrophages M0, neutrophils, and mast cells, and decreased infiltration of T follicular helper cells and CD8 in the IS group. The ceRNA network consisted of 306 miRNA-mRNA interacting pairs and 285 miRNA-lncRNA interacting pairs. RT-qPCR results indicated that the expression levels of BAZ2B, C5AR1, PDK4, and STK3 were significantly increased in patients with IS. Finally, we developed a diagnostic model based on these four genes. The AUC value of the model was verified to be 0.999 in the training set and 0.940 in the validation set. Conclusion Our research explored the immune-related gene expression modules and provided a specific basis for further study of immunomodulatory therapy of IS.
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- 2024
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44. Management and Clinical Outcomes of Membranous Nephropathy, IgA Nephropathy, and Minimal Change Disease Two Years Post-Kidney Biopsy
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Xiaojiao Guo, Xuan Tie, Yuyu Zhang, Yemei Dai, Shulei Yao, Xi Qiao, Lihua Wang, and Xiaole Su
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Dermatology ,RL1-803 ,Diseases of the circulatory (Cardiovascular) system ,RC666-701 ,Diseases of the genitourinary system. Urology ,RC870-923 - Abstract
Introduction This study evaluated the phenotypic and pathology characteristics of patients undergoing kidney biopsy at a single center, while also determining the frequency and factors associated with clinical outcomes. Methods The incidence and distribution of biopsy-proven kidney diseases in 2000-2019 were surveyed. Consecutive individuals diagnosed with membranous nephropathy (MN), immunoglobulin A nephropathy (IgAN), and minimal change disease (MCD) between August 2015 and December 2019 were enrolled in the prospective two-year follow-up study. Outcomes included remission of proteinuria and kidney disease progression events. Multivariable adjusted Cox proportional hazards model was applied. Results 4,550 kidney biopsies were performed in 2000–2019, showing a noticeable increase in the proportion of MN. 426 patients were enrolled in follow-up cohort. 346 (81.2%) achieved remission of proteinuria, 39 (9.2%) suffered kidney disease progression and 51.3% of them were diagnosed with IgAN. Kidney pathological diagnosis (MN vs. MCD: hazard ratio [HR], 0.42; 95% confidence interval [95% CI], 0.31–0.57; IgAN vs. MCD: 0.58; 0.39–0.85), levels of 24-h urine protein at biopsy (1.04; 1.00–1.08) and presence of nodular mesangial sclerosis (0.70; 0.49–0.99) were significantly correlated with remission of proteinuria after adjusting for baseline variables. 24-h urine protein levels at biopsy (1.14; 1.04–1.25) and the presence of crescents (2.30; 1.06–4.95) were the independent risk factors for kidney disease progression events after adjusting for baseline variables. Conclusion The increasing frequency of MN was affirmed over the past two decades. The therapeutic status, clinical outcomes, and factors influencing these outcomes were presented in this single-center study for the three primary glomerular diseases. Number of China Clinical Trial Registry: ChiCTR2100043001.
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- 2024
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45. Treatment algorithms of relapsing multiple sclerosis: an exploration based on the available disease-modifying therapies in China
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Jun Guo, Jiayong Wu, Lihua Wang, Hongbo Liu, Xiaomu Wu, Huan Yang, Wenyu Li, Honghao Wang, Bitao Bu, Chunsheng Yang, Hongyu Zhou, Shougang Guo, Yinan Zhao, Zhanhang Wang, Chunyang Li, De-Cai Tian, Sheng Chen, Huiru Xue, Yanlin Zhang, Yongfeng Xu, Hui Liang, Zhe Wu, Yu Zhang, Qiang Dong, Jiawei Wang, and Chao Quan
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Neurology. Diseases of the nervous system ,RC346-429 - Abstract
Multiple sclerosis (MS) was defined as a rare disease in China due to its low prevalence. For a long time, interferon β was the only approved disease-modifying therapy (DMT). Since the first oral DMT was approved in 2018, DMT approval accelerated, and seven DMTs were approved within 5 years. With an increasing number of DMTs being prescribed in clinical practice, it is necessary to discuss the standardized MS treatment algorithms depending on the disease activity and DMT availability. In this review paper, more than 20 Chinese experts in MS have reviewed the therapeutic progress of MS in China and worldwide and discussed algorithms for treating relapsing MS (RMS) based on the available DMTs in China, providing insights for establishing the standardized RMS treatment algorithms in this country.
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- 2024
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46. Genome-wide association study of plant color in Sorghum bicolor
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Lihua Wang, Wenmiao Tu, Peng Jin, Yanlong Liu, Junli Du, Jiacheng Zheng, Yi-Hong Wang, and Jieqin Li
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GWAS ,plant color ,resequencing ,sorghum ,SNP ,Plant culture ,SB1-1110 - Abstract
IntroductionSorghum plant color is the leaf sheath/leaf color and is associated with seed color, tannin and phenol content, head blight disease incidence, and phytoalexin production.ResultsIn this study, we evaluated plant color of the sorghum mini core collection by scoring leaf sheath/leaf color at maturity as tan, red, or purple across three testing environments and performed genome-wide association mapping (GWAS) with 6,094,317 SNPs markers.Results and DiscussionEight loci, one each on chromosomes 1, 2, 4, and 6 and two on chromosomes 5 and 9, were mapped. All loci contained one to three candidate genes. In qPC5-1, Sobic.005G165632 and Sobic.005G165700 were located in the same linkage disequilibrium (LD) block. In qPC6, Sobic.006G149650 and Sobic.006G149700 were located in the different LD block. The single peak in qPC6 covered one gene, Sobic.006G149700, which was a senescence regulator. We found a loose correlation between the degree of linkage and tissue/organ expression of the underlying genes possibly related to the plant color phenotype. Allele analysis indicated that none of the linked SNPs can differentiate between red and purple accessions whereas all linked SNPs can differentiate tan from red/purple accessions. The candidate genes and SNP markers may facilitate the elucidation of plant color development as well as molecular plant breeding.
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- 2024
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47. Construction of an Enzyme Cascade Based on the Accurate Adjacent Arrangement of Coupled Enzymes Using a Triblock PolyA DNA Probe
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Lele Wang, Ruiyan Guo, Lanying Li, Qing Tao, Qin Xu, Xue Yang, Xue Liu, Jiang Li, Lihua Wang, Jinxue Chang, Chengming Cao, Yanli Wen, Shiping Song, and Gang Liu
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Chemistry ,QD1-999 - Published
- 2023
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48. In-situ atomic-scale observation of dislocation and deformation twin interaction in FeMnCoCr high-entropy alloy
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Yan Ma, Keliang Qiu, Ning Xu, Chengpeng Yang, Jiabao Zhang, Zihao Zhang, Qingsong Deng, Yonghai Yue, Lihua Wang, and Xiaodong Han
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High-entropy alloys ,in-situ ,dislocation ,deformation twin ,Materials of engineering and construction. Mechanics of materials ,TA401-492 - Abstract
The deformation of a single-crystal Fe48Mn32Co10Cr10 alloy is captured in situ at the atomic scale. The results show that full and partial dislocations, along with deformation twins, are involved in the deformation process. Partial dislocation activities result in the formation of nanotwins, high-density coherent twin boundaries, and incoherent twin boundaries. Full dislocations interact with the coherent/incoherent twin boundaries, and partial dislocations, thereby producing high strength and remarkable strain hardening. The observed high activity of full dislocations can be attributed to the inhomogeneous distribution of solid solution atoms in the alloy.
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- 2023
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49. Effects of γ-Aminobutyric Acid on Growth Performance, Immunity, Antioxidant Capacity, and Intestinal Microbiota of Growing Minks
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Yalin Li, Shibo Zhen, Fengxue Sun, Lin Cao, and Lihua Wang
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γ-aminobutyric acid ,mink ,growth performance ,immunity ,antioxidant capacity ,intestinal microbiota ,Veterinary medicine ,SF600-1100 - Abstract
The present experiment was conducted to investigate the effects of γ-aminobutyric acid (GABA) on the growth performance, immunity, antioxidant capacity, and intestinal microbiota of growing minks. One hundred minks were evenly allocated across five groups, with each group consisting of 10 males and 10 females. The minks in these groups were fed a basal diet supplemented with γ-aminobutyric acid (GABA) at 0 (control), 10, 20, 30, and 40 mg/kg of diet, respectively. The experiment lasted for eight weeks. The results showed that GABA significantly affected immunity, antioxidant capacity, and intestinal microbiota (p < 0.05). Compared to the control minks, minks in 20, 30, and 40 mg/kg GABA group had greater total protein quantitative (TP), immunoglobulin A (IgA), immunoglobulin M (IgM) content, total antioxidant capacity (T-AOC), and glutathione peroxidase (GSH-Px) activities in serum as well as interleukin-4 (IL-4) level in jejunal mucosa (p < 0.05), and had less serum blood urea nitrogen (BUN) content (p < 0.05). Furthermore, compared with the control, the supplementation of GABA at 30 mg/kg of diet improved average daily feed intake (ADFI) (p < 0.05), increased immunoglobulin G (IgG) content in serum, interleukin-10 (IL-10) and secreted immunoglobulin A (SIgA) levels in jejunal mucosa, and decreased jejunal mucosal interleukin-2 (IL-2), interleukin-12 (IL-12), and interferon-γ (IFN-γ) levels (p < 0.05). The weight and feed intake of males were higher than females, and the feed/gain ratio (F/G) was lower than females (p < 0.05). Males also had greater serum superoxide dismutase (SOD) and GSH-Px activities, and jejunal mucosa IL-2, IL-4, IL-12, SIgA, and IFN-γ levels (p < 0.05), and males had less serum IgA, IgM, and T-AOC contents, and jejunal mucosal tumor necrosis factor-α (TNF-α) level (p < 0.05). The results suggest that the supplementation of GABA at 30 mg/kg of diet can improve immune status and antioxidant capacity, and modulate the intestinal microbiota abundance of growing minks.
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- 2024
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50. A Differentially Private (Random) Decision Tree without Noise from k-Anonymity
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Atsushi Waseda, Ryo Nojima, and Lihua Wang
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privacy preservation ,(random) decision tree ,k-anonymity ,ℓ-diversity ,differential privacy ,Technology ,Engineering (General). Civil engineering (General) ,TA1-2040 ,Biology (General) ,QH301-705.5 ,Physics ,QC1-999 ,Chemistry ,QD1-999 - Abstract
This paper focuses on the relationship between decision trees, a typical machine learning method, and data anonymization. It is known that information leaked from trained decision trees can be evaluated using well-studied data anonymization techniques and that decision trees can be strengthened using k-anonymity and ℓ-diversity; unfortunately, however, this does not seem sufficient for differential privacy. In this paper, we show how one might apply k-anonymity to a (random) decision tree, which is a variant of the decision tree. Surprisingly, this results in differential privacy, which means that security is amplified from k-anonymity to differential privacy without the addition of noise.
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- 2024
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