87 results on '"Ning Lu"'
Search Results
2. Effect of aerobic exercise on cardiotoxic outcomes in women with breast cancer undergoing anthracycline or trastuzumab treatment: a systematic review and meta-analysis
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Zhu-Yue, Ma, Shan-Shan, Yao, Yan-Yan, Shi, Ning-Ning, Lu, and Fang, Cheng
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Antibiotics, Antineoplastic ,Oncology ,Humans ,Female ,Anthracyclines ,Breast Neoplasms ,Trastuzumab ,Exercise ,Cardiotoxicity ,Biomarkers - Abstract
We aimed to assess the impact of aerobic exercise (AE) on parameters related to cardiotoxicity in breast cancer (BC) patients receiving anthracycline or trastuzumab.We performed a systematic review and meta-analysis of comparative studies on AE via the screening of standard databases from their inception to January 18, 2022. The risk of bias was assessed qualitatively using the domains outlined in the Cochrane Handbook for Systematic Reviews of Interventions. Data were analyzed quantitatively using fixed effects meta-analysis and subgroup analysis in RevMan software. Notable outcomes included imaging outcomes of cardiotoxicity, cardiorespiratory fitness, and cardiac biomarkers.A meta-analysis of the pooled evidence obtained from seven studies revealed that AE significantly increased peak oxygen consumption (VOIn BC patients receiving anthracyclines or trastuzumab, the effects of AE on the levels of cardiotoxicity were mixed; the diastolic functions and VO
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- 2022
3. A liquid biopsy signature predicts lymph node metastases in T1 oesophageal squamous cell carcinoma: implications for precision treatment strategy
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Liyan Xue, Zitong Zhao, Minjie Wang, Liying Ma, Hua Lin, Shaoming Wang, Xuemin Xue, Linxiu Liu, Bingzhi Wang, Zhuo Li, Zhaoyang Yang, Ning Lu, Qimin Zhan, and Yongmei Song
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MicroRNAs ,Cancer Research ,Esophageal Neoplasms ,Oncology ,Lymphatic Metastasis ,Liquid Biopsy ,Humans ,Esophageal Squamous Cell Carcinoma - Abstract
The treatment strategies for T1 oesophageal squamous cell carcinoma (ESCC) patients with or without lymph node metastasis (LNM) are different. Given the advantages of the minimally invasive, sensitive and real-time detection, liquid biopsy has become an important cancer diagnostic and prognostic tool.MiRNA array and small-RNA sequencing were performed. Then, 222 formalin-fixed and paraffin-embedded tumour samples and 229 pretreatment serum samples from T1 ESCC patients were used to verify and evaluate the results.We demonstrated that serum miR-20b-5p could predict LNM in T1 ESCC patients. The AUC for serum miR-20b-5p was higher (0.827) than those for lymphovascular invasion (LVI) (0.751, P = 0.2128), invasion depth (0.662, P = 0.0027) and tumour differentiation grade (0.634, P = 0.0019). A nomogram for predicting LNM with three independent significant predictors (miR-20b-5p, LVI and invasion depth) was constructed with a concordance index of 0.931. Serum miR-20b-5p was also significantly correlated with disease-free survival (P 0.001). An algorithm of improved T1 ESCC treatment strategy after biopsy and/or after endoscopic resection based on serum miR-20b-5p level was constructed.This study suggests that serum miR-20b-5p is a potential biomarker for predicting LNM and can be helpful for precise clinical decision-making strategies and improve treatment outcomes for T1 ESCC patients.
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- 2022
4. Chaotic Unilateral Weighted Backward Shifts on Sequentially Complete Topological Sequence Spaces
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Zhen Rong, Cheng Luo, Fei He, and Ning Lu
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Applied Mathematics ,General Mathematics - Published
- 2022
5. In situ growth of Ag nanoparticles on pristine graphene and their applications in conductive ink
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Lei Zhu, Qin-Qin Xu, Jin Guo, Shuo-Lei Niu, Bao-Ning Lu, and Jian-Zhong Yin
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Modeling and Simulation ,General Materials Science ,Bioengineering ,General Chemistry ,Condensed Matter Physics ,Atomic and Molecular Physics, and Optics - Published
- 2023
6. Dynamic evolution of brain structural patterns in liver transplantation recipients: a longitudinal study based on 3D convolutional neuronal network model
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Yue Cheng, Xiao-Dong Zhang, Cheng Chen, Ling-Fei He, Fang-Fei Li, Zi-Ning Lu, Wei-Qi Man, Yu-Jiao Zhao, Zhi-Xing Chang, Ying Wu, Wen Shen, Ling-Zhong Fan, and Jun-Hai Xu
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Radiology, Nuclear Medicine and imaging ,General Medicine - Published
- 2023
7. An assessment of multi-view spectral information from UAV-based color-infrared images for improved estimation of nitrogen nutrition status in winter wheat
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Ning Lu, Yapeng Wu, Hengbiao Zheng, Xia Yao, Yan Zhu, Weixing Cao, and Tao Cheng
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General Agricultural and Biological Sciences - Published
- 2022
8. Altered white matter structural connectivity in primary Sjögren’s syndrome: a link-based analysis
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Xiao-Dong Zhang, Jing-Li Li, Jia-Min Zhou, Zi-Ning Lu, Lin-Ru Zhao, Wen Shen, Jun-Hai Xu, and Yue Cheng
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Radiology, Nuclear Medicine and imaging ,Neurology (clinical) ,Cardiology and Cardiovascular Medicine - Published
- 2022
9. Tumor-derived miR-20b-5p promotes lymphatic metastasis of esophageal squamous cell carcinoma by remodeling the tumor microenvironment
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Zitong Zhao, Liyan Xue, Leilei Zheng, Liying Ma, Zhuo Li, Ning Lu, Qimin Zhan, and Yongmei Song
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Cancer Research ,Genetics - Published
- 2023
10. A phase II study of chidamide, cytarabine, aclarubicin, granulocyte colony-stimulating factor, and donor lymphocyte infusion for relapsed acute myeloid leukemia and myelodysplastic syndrome after allogeneic hematopoietic stem cell transplantation
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Yan Wei, Lijun Wang, Chengying Zhu, Honghua Li, Jian Bo, Ran Zhang, Ning Lu, Yongli Wu, Xiaoning Gao, Liping Dou, Daihong Liu, and Chunji Gao
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Cancer Research ,Oncology ,Hematology ,General Medicine - Abstract
Chemotherapy followed by donor lymphocyte infusion (DLI) is a promising treatment for relapsed acute myeloid leukemia (AML) and myelodysplastic syndrome (MDS) after allogeneic hematopoietic stem cell transplantation (allo-HSCT). However, the best strategy for administering this therapy is still unclear. This study sought to explore the efficacy and safety of chidamide and CAG (cytarabine, aclarubicin and granulocyte colony-stimulating factor) (CCAG) regimen followed by DLI in relapsed AML/MDS after allo-HSCT. This was a single-arm, phase II trial in patients with relapsed AML/MDS after allo-HSCT. CCAG regimen followed by DLI was given according to the inclusion and exclusion criteria. Twenty adult patients were enrolled. The median follow-up time was 12 months. The complete remission (CR) rate was 45% and the partial remission (PR) rate was 5%. The 1-year overall survival (OS) was 56.7% (95% confidence interval (95% CI), 31.6-75.6%), and the median OS was 19 months. The one-year disease-free survival (DFS) was 83.3% (95% CI, 27.3-97.5%). Patients relapsing more than 6 months after HSCT and achieving CR/PR after CCAG plus DLI regimen attained significantly higher survival rates. The cumulative incidence of grade III-IV acute graft-versus-host disease (aGVHD) was 9.4%. There was no treatment-related mortality (TRM). These data suggest that CCAG plus DLI regimen is safe and induces durable remission and superior survival in patients with relapsed AML/MDS after allo-HSCT. Trial registration number: ChiCTR.org identifier: ChiCTR1800017740 and date of registration: August 12, 2018.
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- 2023
11. Hydrogen-incorporated vanadium dioxide nanosheets enable efficient uranium confinement and photoreduction
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Jia Lei, Wenkun Zhu, Ning Lu, Shangjie Yang, Huanhuan Liu, Ye Li, Jiali Chen, Rong He, Yan Liu, Yamin Zheng, and Changyao Gong
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Hydrogen ,Band gap ,Chemistry ,musculoskeletal, neural, and ocular physiology ,Inorganic chemistry ,chemistry.chemical_element ,Uranium ,Condensed Matter Physics ,Atomic and Molecular Physics, and Optics ,Vanadium dioxide ,Adsorption ,Photocatalysis ,General Materials Science ,Irradiation ,Electrical and Electronic Engineering ,human activities ,Conduction band ,circulatory and respiratory physiology - Abstract
Photocatalytic reduction of U(VI) represents a novel and effective manner for the removal of U(VI) pollutant from radioactive wastewater. Herein, we successfully incorporated hydrogen into VO2 nanosheets, which strengthened the interaction between VO2 and U(VI), thereby achieving a highly active and stable photocatalyst for U(VI) reduction. With the increase of H content in hydric VO2 (HX-VO2) nanosheets, the bandgap shrank from 2.29 to 1.66 eV, whereas the position of conduction bands remained more negative than the reduction potential of U(VI)/U(IV) (0.41 V vs. NHE). When irradiated by simulated sunlight, the U(VI) removal efficiency over H0.613-VO2 nanosheets reached up to 95.4% within 90 min, which largely outperformed 28.3% of pristine VO2 nanosheets. The mechanistic study demonstrated that the hydroxylated surface gave rise to the balanced O confinement sites in VO2 (011), leading to the stabilized adsorption configuration and increased binding strength of UO22+ on HX−-VO2 nanosheets.
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- 2021
12. A Secure Access Control Framework for Cloud Management
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Ning Lu, Jiawei Zhang, Wenbo Shi, Ruixiao Wang, and Jianfeng Ma
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Cloud management ,Computer Networks and Communications ,business.industry ,Computer science ,Cloud computing ,Access control ,Privilege (computing) ,Permission ,Computer security ,computer.software_genre ,Encryption ,Security token ,Hardware and Architecture ,Role-based access control ,business ,computer ,Software ,Information Systems - Abstract
Cloud operating system (Cloud OS) is the heart of cloud management platform that takes control of various cloud resources. Therefore, it attracts numerous attacks, especially unauthorized access. Many existing works adopt role-based access control (RBAC) model for Cloud OS access control and token-based approaches as user credentials of sessions or transactions between users and cloud, but they fail to resist privilege abuse caused by RBAC policy rules tampering or token hijacking. To addresses this challenging problem, we propose a secure access control framework suitable for resource-centric Cloud OS. For one thing, we propose a new authorization model with cryptographically protected RBAC policy rules. To solve the policy decision problem caused by encrypted policy rules in this model, an approach is developed to transform it into permission searching problem and we further propose a policy decision scheme based on this. For another thing, we achieve user token unlinkability and token-replay-attack resistance by introducing randomization mechanism and leveraging one-show token technique. A proof of concept implementation has been developed and the proposed scheme is proven secure and efficient by security analysis and the performance evaluation.
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- 2021
13. Phase separation modulates the assembly and dynamics of a polarity-related scaffold-signaling hub
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Wei Tan, Sihua Cheng, Yingying Li, Xiao-Yang Li, Ning Lu, Jingxian Sun, Guiyue Tang, Yujiao Yang, Kezhu Cai, Xuefei Li, Xijun Ou, Xiang Gao, Guo-Ping Zhao, W. Seth Childers, and Wei Zhao
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Multidisciplinary ,Cell Body ,Asymmetric Cell Division ,Caulobacter crescentus ,Biophysics ,General Physics and Astronomy ,General Chemistry ,General Biochemistry, Genetics and Molecular Biology ,Signal Transduction - Abstract
Asymmetric cell division (ACD) produces morphologically and behaviorally distinct cells and is the primary way to generate cell diversity. In the model bacteriumCaulobacter crescentus, the polarization of distinct scaffold-signaling hubs at the swarmer and stalked cell poles constitutes the basis of ACD. However, mechanisms involved in the formation of these hubs remain elusive. Here, we show that a swarmer-cell-pole scaffold, PodJ, forms biomolecular condensates both in vitro and in living cells via phase separation. The coiled-coil 4–6 and the intrinsically disordered regions are the primary domains that contribute to biomolecular condensate generation and signaling protein recruitment in PodJ. Moreover, a negative regulation of PodJ phase separation by the stalked-cell-pole scaffold protein SpmX is revealed. SpmX impedes PodJ cell-pole accumulation and affects its recruitment ability. Together, by modulating the assembly and dynamics of scaffold-signaling hubs, phase separation may serve as a general biophysical mechanism that underlies the regulation of ACD in bacteria and other organisms.
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- 2022
14. Study on Rolling and Hot Delivery Spheroidizing Annealing of GCr15 Bearing Steel
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Zhi-Yuan Huang, Lin-Xiu Du, Mu-Zi Li, Si-Yu Fu, and Jia-Ning Lu
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Mechanics of Materials ,Mechanical Engineering ,General Materials Science - Published
- 2022
15. Acetylshikonin inhibits inflammatory responses and Papain-like protease activity in murine model of COVID-19
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Ning Lu, Tingxuan Gu, Xueli Tian, Simin Zhao, Guoguo Jin, Fredimoses Mangaladoss, Yan Qiao, Kangdong Liu, Ran Zhao, and Zigang Dong
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Mice ,Disease Models, Animal ,Cancer Research ,Papain ,Genetics ,Animals ,COVID-19 ,Anthraquinones - Published
- 2022
16. Cross-watershed distribution pattern challenging the elimination of Oncomelania hupensis, the intermediate host of Schistosoma japonicum, in Sichuan province, China
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Shen, Chen, Ding, Lu, Lei, Duan, Ben, Ma, Chao, Lv, Yin-Long, Li, Shen-Ning, Lu, Lan-Hua, Li, Liang, Xu, Zi-Song, Wu, Shang, Xia, Jing, Xu, Yang, Liu, and Shan, Lv
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China ,Infectious Diseases ,Gastropoda ,Animals ,Humans ,Schistosoma ,Schistosomiasis ,Parasitology ,Ecosystem ,Phylogeny - Abstract
Background Snail control is critical to schistosomiasis control efforts in China. However, re-emergence of Oncomelania hupensis is challenging the achievements of schistosomiasis control. The present study aimed to test whether the amphibious snails can spread across watersheds using a combination of population genetics and geographic statistics. Methods The digital maps and attributes of snail habitats were obtained from the national survey on O. hupensis. Snail sampling was performed in 45 counties of Sichuan Province. The cox1 gene of specimens was characterized by sequencing. Unique haplotypes were found for phylogenetic inference and mapped in a geographical information system (GIS). Barriers of gene flow were identified by Monmonier’s maximum difference algorithm. The watercourses and watersheds in the study area were determined based on a digital elevation model (DEM). Plain areas were defined by a threshold of slope. The slope of snail habitats was characterized and the nearest distance to watercourses was calculated using a GIS platform. Spatial dynamics of high-density distributions were observed by density analysis of snail habitats. Results A total of 422 cox1 sequences of O. hupensis specimens from 45 sampling sites were obtained and collapsed into 128 unique haplotypes or 10 clades. Higher haplotype diversity in the north of the study area was observed. Four barriers to gene flow, leading to five sub-regions, were found across the study area. Four sub-regions ran across major watersheds, while high-density distributions were confined within watersheds. The result indicated that snails were able to disperse across low-density areas. A total of 63.48% habitats or 43.29% accumulated infested areas were distributed in the plain areas where the overall slope was < 0.94°. Approximately 90% of snail habitats were closer to smaller watercourses. Historically, high-density areas were mainly located in the plains, but now more were distributed in hilly region. Conclusions Our study showed the cross-watershed distribution of Oncomelania snails at a large scale. Natural cross-watershed spread in plains and long-distance dispersal by humans and animals might be the main driver of the observed patterns. We recommend cross-watershed joint control strategies for snail and schistosomiasis control. Graphical Abstract
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- 2022
17. Pantoprazole ameliorates liver fibrosis and suppresses hepatic stellate cell activation in bile duct ligation rats by promoting YAP degradation
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He Hongwei, Na Zhang, Wei-xiao Niu, Xiu-Li Guo, Bao Yunyang, Mao-xu Ge, Yu Ren, and Zhen-ning Lu
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Liver Cirrhosis ,Male ,Article ,Rats, Sprague-Dawley ,In vivo ,Survivin ,Hepatic Stellate Cells ,Animals ,Humans ,Gene silencing ,Pharmacology (medical) ,Ligation ,Pantoprazole ,Pharmacology ,Chemistry ,Gene Expression Profiling ,Proton Pump Inhibitors ,YAP-Signaling Proteins ,General Medicine ,Hepatic stellate cell activation ,Rats ,CTGF ,HEK293 Cells ,CYR61 ,Proteolysis ,Cancer research ,Hepatic stellate cell ,Bile Ducts ,Hepatic fibrosis - Abstract
Liver fibrosis is one of the most severe pathologic consequences of chronic liver diseases, and effective therapeutic strategies are urgently needed. Proton pump inhibitors (PPIs) are H + /K + -ATPase inhibitors and currently used to treat acid-related diseases such as gastric ulcers, which have shown other therapeutic effects in addition to inhibiting acid secretion. However, few studies have focused on PPIs from the perspective of inhibiting hepatic fibrosis. In the present study, we investigated the effects of pantoprazole (PPZ), a PPI, against liver fibrosis in a bile duct ligation (BDL) rat model, human hepatic stellate cell (HSC) line LX-2 and mouse primary HSCs (pHSCs), and explored the potential mechanisms underlying the effects of PPZ in vitro and in vivo. In BDL rats, administration of PPZ (150 mg· kg −1 · d −1 , i.p. for 14 d) significantly attenuated liver histopathological injury, collagen accumulation, and inflammatory responses, and suppressed fibrogenesis-associated gene expression including Col1a1, Acta2, Tgfβ1 , and Mmp-2 . In LX-2 cells and mouse pHSCs, PPZ (100–300 μM) dose-dependently suppressed the levels of fibrogenic markers. We conducted transcriptome analysis and subsequent validation in PPZ-treated LX-2 cells, and revealed that PPZ inhibited the expression of Yes-associated protein (YAP) and its downstream targets such as CTGF, ID1, survivin, CYR61, and GLI2. Using YAP overexpression and silencing, we demonstrated that PPZ downregulated hepatic fibrogenic gene expression via YAP. Furthermore, we showed that PPZ promoted the proteasome-dependent degradation and ubiquitination of YAP, thus inhibiting HSC activation. Additionally, we showed that PPZ destabilized YAP by disrupting the interaction between a deubiquitinating enzyme OTUB2 and YAP, and subsequently blocked the progression of hepatic fibrosis.
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- 2021
18. Exact Bloch States of a Spin-orbit Coupled Bose-Einstein Condensate in an Optical Lattice
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Gui Jin, Zhenghua Tang, Min Yao, Ning Lu, Dajun Lei, Ya-Qi Chen, Hai-Ming Deng, Chunzhi Jiang, and Chao Kong
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Condensed Matter::Quantum Gases ,Physics ,Optical lattice ,Physics and Astronomy (miscellaneous) ,Condensed Matter::Other ,General Mathematics ,Quantum entanglement ,Instability ,law.invention ,Superfluidity ,Lattice (module) ,Coupling (physics) ,law ,Quantum mechanics ,Bose–Einstein condensate ,Spin-½ - Abstract
We study the exact Bloch states of a spin-orbit (SO) coupled Bose-Einstein condensate (BEC) held in an optical lattice. Under a natural condition of the symmetry between the two species, we obtain two different forms of exact solutions corresponding to different existing conditions. Then, we analytically demonstrate that (a) the average atomic number per well can enlarge the region area (consisting of instability and stability parameter regions) existing exact solutions; (b) the sizes of the instability and stability parameter regions exhibit opposite variation trend with the increase in Rabi coupling strength, and the results of different solutions are just opposite. Besides, we find that spin-orbit coupling (SOC) results in the generation of spin-motion entanglement for the Bloch states, the SOC strength and lattice depth can influence the population transfer between two BEC components, and varying the SOC strength and lattice depth can also reveal the dynamical superfluid-insulator transition from the superfluid state to the critical insulating state. These results present a feasible scheme to manipulate the stable superfluid currents, which will be useful to control quantum transport of BEC.
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- 2021
19. Application of an innovative grid-based surveillance strategy to ensure elimination and prevent reintroduction of malaria in high-risk border communities in China
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Shen-ning Lu, Wei Ding, Jia-zhi Wang, Shou-qin Yin, Sheng-guo Li, Xing-wu Zhou, Qiu-li Xu, Xiao-dong Sun, Chris Cotter, Michelle S Hsiang, Allison Tatarsky, Roly Gosling, Shan Lv, and Duo-quan Wang
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Transients and Migrants ,China ,Folkhälsovetenskap, global hälsa, socialmedicin och epidemiologi ,Computer Systems ,China-Myanmar border region ,Public Health, Environmental and Occupational Health ,Humans ,Malaria elimination ,Public Health, Global Health, Social Medicine and Epidemiology ,Myanmar ,Mobile and migrant populations ,Grid-based strategy ,Malaria - Abstract
Grid management is a grassroots governance strategy widely implemented in China since 2004 to improve the government’s efficiency to actively find and solve problems among populated regions. A grid-based strategy surveillancing high-risk groups, including mobile and migrant populations (MMPs), in the China–Myanmar border region has played an indispensable role in promoting and consolidating the malaria elimination efforts by tracking and timely identification of potential importation or re-establishment of malaria among MMPs. A sequential mixed methods was implementated to explore the operational mechanism and best practices of the grid-based strategy including through the focus group discussions (FGDs), comparison of before and after the implementation of a grid-based strategy in the field sites, and data collection from the local health system.This paper distills the implementation mechanism and highlights the role of the grid-based strategy in the elimination and prevention of re-establishment of malaria transmission.
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- 2022
20. Impact of breast cancer risk factors on clinically relevant prognostic biomarkers for primary breast cancer
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Nan Hu, Hela Koka, Xiaohong R. Yang, Mustapha Abubakar, Bin Zhou, Joseph Deng, Ning Lu, Bin Zhu, Changyuan Guo, and Montserrat Garcia-Closas
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Oncology ,Cancer Research ,medicine.medical_specialty ,Receptor, ErbB-2 ,Epidemiology ,Family history ,Breast Neoplasms ,Overweight ,IHC4 ,Obese ,Age ,Breast cancer ,Risk Factors ,Internal medicine ,Biomarkers, Tumor ,medicine ,Humans ,business.industry ,Incidence (epidemiology) ,Cancer ,Odds ratio ,Prognosis ,medicine.disease ,Parity ,Receptors, Estrogen ,Risk factors for breast cancer ,Nottingham Prognostic Index ,Female ,NPI ,Neoplasm Recurrence, Local ,medicine.symptom ,Receptors, Progesterone ,business ,Body mass index - Abstract
Purpose In addition to impacting incidence, risk factors for breast cancer may also influence recurrence and survival from the disease. However, it is unclear how these factors affect combinatorial biomarkers for aiding treatment decision-making in breast cancer. Methods Patients were 8179 women with histologically confirmed invasive breast cancer, diagnosed and treated in a large cancer hospital in Beijing, China. Individual clinicopathological (tumor size, grade, lymph nodes) and immunohistochemical (IHC: ER, PR, HER2, KI67) markers were used to define clinically relevant combinatorial prognostic biomarkers, including the Nottingham Prognostic Index (NPI: combining size, grade, nodes) and IHC4 score (combining ER, PR, HER2, KI67). Odds ratios (ORs) and 95% confidence intervals (CIs) for associations between breast cancer risk factors and quartiles (Q1–Q4) of NPI and IHC4 were assessed in multivariable polytomous logistic regression models. Results Overall, increasing parity (ORtrend(95% CI) = 1.20(1.05–1.37);Ptrend = 0.007), overweight (OR(95% CI)vs normal = 1.60(1.29–1.98)), and obesity (OR(95% CI) vs normal = 2.12(1.43–3.14)) were associated with higher likelihood of developing tumors with high (Q4) versus low (Q1) NPI score. Conversely, increasing age (ORtrend(95% CI) = 0.75(0.66–0.84);Ptrend vs normal = 0.82(0.66–1.02)) and obese (OR(95% CI) vs normal = 0.52(0.36–0.76)) women less likely to develop high IHC4 tumors. Notably, elevated BMI was associated with higher NPI irrespective of hormone receptor-expression status. Conclusions Our findings indicate that factors affecting breast cancer incidence, particularly age, parity, FHBC, and BMI, may impact clinically relevant prognostic biomarkers with implications for surveillance, prognostication, and counseling.
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- 2021
21. Feasibility of machine learning methods for predicting hospital emergency room visits for respiratory diseases
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Xiaolin Xia, Hou Jiang, Ling Yao, Pengju Bu, Jiaying Lu, and Ning Lu
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Coefficient of determination ,Mean squared error ,Computer science ,business.industry ,Health, Toxicology and Mutagenesis ,Mean absolute error ,Time lag ,General Medicine ,010501 environmental sciences ,Machine learning ,computer.software_genre ,01 natural sciences ,Pollution ,Mean absolute percentage error ,Policy decision ,Multilayer perceptron ,Environmental Chemistry ,Autoregressive integrated moving average ,Artificial intelligence ,business ,computer ,0105 earth and related environmental sciences - Abstract
The prediction of hospital emergency room visits (ERV) for respiratory diseases after the outbreak of PM2.5 is of great importance in terms of public health, medical resource allocation, and policy decision support. Recently, the machine learning methods bring promising solutions for ERV prediction in view of their powerful ability of short-term forecasting, while their performances still exist unknown. Therefore, we aim to check the feasibility of machine learning methods for ERV prediction of respiratory diseases. Three different machine learning models, including autoregressive integrated moving average (ARIMA), multilayer perceptron (MLP), and long short-term memory (LSTM), are introduced to predict daily ERV in urban areas of Beijing, and their performances are evaluated in terms of the mean absolute error (MAE), root mean squared error (RMSE), mean absolute percentage error (MAPE), and coefficient of determination (R2). The results show that the performance of ARIMA is the worst, with a maximum R2 of 0.70 and minimum MAE, RMSE, and MAPE of 99, 124, and 26.56, respectively, while MLP and LSTM perform better, with a maximum R2 of 0.80 (0.78) and corresponding MAE, RMSE, and MAPE of 49 (33), 62 (42), and 14.14 (9.86). In addition, it demonstrates that MLP cannot detect the time lag effect properly, while LSTM does well in the description and prediction of exposure-response relationship between PM2.5 pollution and infecting respiratory disease.
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- 2021
22. Origins of Non-random Particle Distributions and Implications to Abnormal Grain Growth in an Al-3.5 Wt Pct Cu Alloy
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Jiwoong Kang, Ning Lu, and Ashwin J. Shahani
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010302 applied physics ,Materials science ,Annealing (metallurgy) ,Scanning electron microscope ,Alloy ,Metallurgy ,0211 other engineering and technologies ,Metals and Alloys ,Thermodynamics ,02 engineering and technology ,engineering.material ,Abnormal grain growth ,Condensed Matter Physics ,01 natural sciences ,Grain size ,Grain growth ,Mechanics of Materials ,Phase (matter) ,0103 physical sciences ,engineering ,Particle ,021102 mining & metallurgy - Abstract
The mechanisms of abnormal grain growth (AGG) in particle-containing systems have long been a mystery. Recently, we reported that a non-random particle distribution can induce a grain size advantage and trigger AGG. However, the processing conditions leading to a non-random particle distribution are far from being understood. Here, we investigate the particle distribution and concomitant grain growth behavior at different annealing temperatures and times in an Al-3.5 wt pct Cu alloy by scanning electron microscopy (SEM). At high temperatures and long times, the particle distribution evolves from random to non-random, with an accompanying transition from normal grain growth (NGG) to AGG. Analytical calculations suggest that a non-random particle distribution is introduced by residual Cu segregation even after homogenization. In short, the corresponding fluctuation of θ-Al2Cu phase distribution is amplified at elevated temperatures via particle dissolution. We quantify the spatial inhomogeneity of particles through the Gini coefficient and link this important parameter to the critical grain size necessary for AGG. The trends are conveyed succinctly in a temperature–time–(structural) transformation (TTT) diagram, which identifies the onset of AGG in an Al-3.5 wt pct Cu alloy.
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- 2021
23. Single copper sites dispersed on hierarchically porous carbon for improving oxygen reduction reaction towards zinc-air battery
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Yamin Zheng, Wenxing Chen, Yadong Li, Yan Liu, Zhaoyi Song, Wenjie Wu, Chunxia Wang, Dong Liu, Junjie Mao, Ning Lu, and Ximin Wang
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Materials science ,chemistry.chemical_element ,02 engineering and technology ,engineering.material ,010402 general chemistry ,021001 nanoscience & nanotechnology ,Condensed Matter Physics ,01 natural sciences ,Copper ,Electrochemical energy conversion ,Atomic and Molecular Physics, and Optics ,0104 chemical sciences ,Catalysis ,chemistry.chemical_compound ,chemistry ,Chemical engineering ,Zinc–air battery ,engineering ,General Materials Science ,Noble metal ,Methanol ,Electrical and Electronic Engineering ,0210 nano-technology ,Pyrolysis ,Carbon - Abstract
The demand for high-performance non-precious-metal electrocatalysts to replace the noble metal-based catalysts for oxygen reduction reaction (ORR) is intensively increasing. Herein, single-atomic copper sites supported on N-doped three-dimensional hierarchically porous carbon catalyst (Cu1/NC) was prepared by coordination pyrolysis strategy. Remarkably, the Cu1/NC-900 catalyst not only exhibits excellent ORR performance with a half-wave potential of 0.894 V (vs. RHE) in alkaline media, outperforming those of commercial Pt/C (0.851 V) and Cu nanoparticles anchored on N-doped porous carbon (CuNPs/NC-900), but also demonstrates high stability and methanol tolerance. Moreover, the Cu1/NC-900 based Zn-air battery exhibits higher power density, rechargeability and cyclic stability than the one based on Pt/C. Both experimental and theoretical investigations demonstrated that the excellent performance of the as-obtained Cui/NC-900 could be attributed to the synergistic effect between copper coordinated by three N atoms active sites and the neighbouring carbon defect, resulting in elevated Cu d-band centers of Cu atoms and facilitating intermediate desorption for ORR process. This study may lead towards the development of highly efficient non-noble metal catalysts for applications in electrochemical energy conversion.
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- 2020
24. China’s long march to malaria elimination: a case of adaptive management
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Duo-quan Wang, Xiao-hui Liang, Shen-ning Lu, Wei Ding, Jing Huang, Xin Wen, Shan Lv, Ning Xiao, Lewis Husain, and Xiao-Nong Zhou
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China ,Infectious Diseases ,Arctic medicine. Tropical medicine ,parasitic diseases ,RC955-962 ,Global health ,Malaria elimination ,Parasitology ,Infectious and parasitic diseases ,RC109-216 ,Adaptive - Abstract
Since the 1950s, China has transitioned from a malaria pandemic country with tens of millions of annual cases, through phases of local control and elimination, to sustained national malaria elimination efforts. This marks the first time a country in the World Health Organization (WHO) Western Pacific region has been certified malaria-free in more than 3 decades. This article provides an innovative approach to understanding China’s malaria elimination journey. A number of articles and commentaries have analysed the effectiveness of specific technical approaches implemented in China. Our argument is that we need to look beyond these, and consider the ways in which policy development and implementation capacities have been fostered to support the dynamic change management. The article makes a number of arguments. First is the pragmatic adaptiveness of policies and strategies—and implementation capacities. Second, China has invested in building systems as well as capacities to support the elimination of parasitic diseases, including malaria. Third, the country has both benefited from, and contributed to, global health collaboration on malaria elimination. The ongoing work by the authors is identifying a number of key factors.
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- 2022
25. Risk factors for complications after endoscopic treatment in Chinese patients with early esophageal cancer and precancerous lesions
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Xinying Yu, Liyan Xue, Guiqi Wang, Yong Liu, Ning Lu, Lizhou Dou, Shun He, Xiao Liu, and Yueming Zhang
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Male ,China ,medicine.medical_specialty ,Endoscopic Mucosal Resection ,Esophageal Neoplasms ,Operative Time ,Perforation (oil well) ,03 medical and health sciences ,Postoperative Complications ,0302 clinical medicine ,Asian People ,Risk Factors ,medicine ,Humans ,Endoscopy, Digestive System ,Risk factor ,Aged ,Retrospective Studies ,medicine.diagnostic_test ,business.industry ,Cancer ,Odds ratio ,Middle Aged ,Esophageal cancer ,medicine.disease ,Dilatation ,Endoscopy ,Surgery ,Stenosis ,030220 oncology & carcinogenesis ,Esophageal Stenosis ,Female ,030211 gastroenterology & hepatology ,business ,Precancerous Conditions ,Abdominal surgery - Abstract
This study aimed to analyze the risk factors for complications after endoscopic treatment of early esophageal cancer and precancerous lesions and provides evidence for developing preventive measures against these complications. The clinical data of patients with early esophageal cancer and precancerous lesions treated in the Department of Endoscopy, National Cancer Center/Cancer Hospital, Chinese Academy of Medical Sciences, and Peking Union Medical College from January 2009 to December 2015 were analyzed. The risk factors related to delayed bleeding, perforation, and stenosis were assessed. Of 459 patients, 15 (3.3%) had delayed bleeding, 16 (3.5%) had perforation, and 82 (17.9%) had stenosis. Conservative treatment was performed for patients with bleeding and perforation, and endoscopic dilation was performed to relieve stenosis. The independent risk factors for delayed bleeding were lesion size (OR = 1.51, P = 0.020), circumferential diameter [odds ratio (OR) = 1.24, P = 0.037]. The kind of operation method [endoscopic submucosal dissection (ESD)/cap-based endoscopic resection (EMR-Cap): OR = 15.38, P = 0.013) was the independent risk factor for perforation. The independent predictors of stenosis were circumferential diameter (OR = 1.58, P
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- 2020
26. Effects of meteorology and soil on the herb species diversity in plantations in a reclamation area of coal mine after 6 years
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Xiang Wang, Feng Zhang, Ning Lu, and Chunyan Guo
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China ,food.ingredient ,Meteorology ,Health, Toxicology and Mutagenesis ,Ecological succession ,010501 environmental sciences ,01 natural sciences ,Mining ,Polygonaceae ,Soil ,food ,Land reclamation ,Environmental Chemistry ,Poaceae ,Restoration ecology ,0105 earth and related environmental sciences ,biology ,business.industry ,Coal mining ,Species diversity ,General Medicine ,biology.organism_classification ,Pollution ,Coal ,Geography ,Herb ,business - Abstract
The ecological restoration of mining areas has always been emphasized in ecological research. This study has investigated herb species diversity of plantations in a reclamation area of the Antaibao opencast coal mine in China after 6 years, aiming to investigate the changes over time and spontaneous succession patterns. One hundred fifty-six species of naturally colonizing herb belonging to 26 families and 86 genera in the six plantations were chosen. Most of 24 herb-dominant species belong to Gramineae, Compositae, and Papilionaceae. Species diversity, meteorology, and soil were recorded. Over time, although the dominant degree of Gramineous has decreased and the degree of Labiatae and Polygonaceae has increased, it still indicated that Gramineae, Compositae, and Papilionaceae occupied an important position in the herb community and played an important role in natural vegetation recovery in reclamation area of the Antaibao opencast coal mine. The diversity of herb species showed significant differences between different plots and years. Correlation analysis indicates that the most important factors for herb species diversity are soil bulk density, average winter temperature, and the mean autumn rainfall.
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- 2020
27. Both the serum AFP test and AFP/GPC3/SALL4 immunohistochemistry are beneficial for predicting the prognosis of gastric adenocarcinoma
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Xiuyun Liu, Ning Lu, Liyan Xue, Li Zheng, Jia Gao, Bingzhi Wang, Xiaohao Zheng, Zhuo Li, Yibin Xie, and Yanling Yuan
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medicine.medical_specialty ,Lymphovascular invasion ,RC799-869 ,Adenocarcinoma ,Metastases ,Gastroenterology ,Group B ,Serology ,Glypicans ,Stomach Neoplasms ,SALL4 ,Internal medicine ,Biomarkers, Tumor ,Pathology ,medicine ,Humans ,business.industry ,Research ,Liver Neoplasms ,digestive, oral, and skin physiology ,Biomarker ,General Medicine ,Diseases of the digestive system. Gastroenterology ,Hepatology ,Prognosis ,Immunohistochemistry ,digestive system diseases ,Tubular Adenocarcinoma ,Biomarker (medicine) ,alpha-Fetoproteins ,Neoplasm Recurrence, Local ,Gastric cancer ,business ,Transcription Factors - Abstract
Background Both gastric adenocarcinoma with primitive enterocyte phenotype (GAPEP) (including hepatoid adenocarcinoma) and alpha-fetoprotein (AFP)-producing gastric adenocarcinoma have poor prognoses. However, the value of the serum AFP test and AFP/glypican-3 (GPC3)/spalt-like transcription factor 4 (SALL4) immunohistochemistry is still not clear, and these two methods have not yet been thoroughly compared. Methods We collected 421 consecutive non-neoadjuvant surgically or endoscopically resected gastric adenocarcinoma patients with serum AFP results before surgery (group A). We divided these cases into serum AFP-high (sAFP-H) and serum AFP-normal (sAFP-N) by serum AFP levels, and into GAPEP (expressing AFP, GPC3, or SALL4) and non-GAPEP (nGAPEP) by AFP/GPC3/SALL4 immunohistochemistry results. We also collected 12 non-resected gastric adenocarcinoma patients with serum AFP ≥ 7 ng/mL before treatment (group B). We analyzed these patients’ clinicopathological characteristics and prognoses. Results Seventeen (4.04%) patients in group A were sAFP-H. These patients were younger and mainly had tubular adenocarcinoma with later pT (P = 0.014) and pN (P = 0.047) categories and more lymphovascular invasion (P P = 0.008), and metastases or recurrence (P P = 0.001). Most group B patients with elevated serum AFP (especially > 1000 ng/mL) had simultaneous metastases, mainly liver metastases. Both the serological method and immunohistochemical method were useful for predicting prognosis (AUC sAFP = 0.625, AUC A/G/S-IHC = 0.723, z statistic = 1.726, P = 0.084). The serum AFP level (especially > 1000 ng/mL) is more specific (100%), and immunohistochemistry is more sensitive (50%). Conclusion Both the serum AFP level and immunohistochemical expression of AFP/GPC3/SALL4 can be used to indicate a poor prognosis for gastric adenocarcinoma.
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- 2021
28. Magnetically guided theranostics: montmorillonite-based iron/platinum nanoparticles for enhancing in situ MRI contrast and hepatocellular carcinoma treatment
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Michael Hsiao, Chien-Hsiu Li, Ming-Hsien Chan, Chi-Long Chen, Da-Hua Wei, Yi-Lung Chung, Chih-Ning Lu, and Yu Chan Chang
- Subjects
Male ,T2-weighted magnetic resonance imaging ,In situ ,Carcinoma, Hepatocellular ,Hepatocellular carcinoma ,Iron platinum ,Drug delivery system ,Biomedical Engineering ,Cancer therapy ,Contrast Media ,Pharmaceutical Science ,Medicine (miscellaneous) ,Nanoparticle ,Bioengineering ,Applied Microbiology and Biotechnology ,Theranostic Nanomedicine ,Nanocomposites ,Mice ,Superparamagnetic FePt nanoparticles ,Cell Line, Tumor ,Medical technology ,medicine ,Animals ,Humans ,R855-855.5 ,Magnetite Nanoparticles ,Platinum ,Drug Carriers ,Mitoxantrone ,medicine.diagnostic_test ,business.industry ,Research ,Liver Neoplasms ,Magnetic resonance imaging ,medicine.disease ,Magnetic Resonance Imaging ,Bentonite ,Molecular Medicine ,business ,Liver cancer ,TP248.13-248.65 ,Biotechnology ,medicine.drug ,Biomedical engineering - Abstract
In Asia, including Taiwan, malignant tumors such as Hepatocellular carcinoma (HCC) one of the liver cancer is the most diagnosed subtype. Magnetic resonance imaging (MRI) has been a typical diagnostic method for accurately diagnosing HCC. When it is difficult to demonstrate non-enhanced MRI of tumors, radiologists can use contrast agents (such as Gd3+, Fe3O4, or FePt) for T1-weighted and T2-weighted imaging remain in the liver for a long time to facilitate diagnosis via MRI. However, it is sometimes difficult for T2-weighted imaging to detect small tumor lesions because the liver tissue may absorb iron ions. This makes early cancer detection a challenging goal. This challenge has prompted current research to create novel nanocomposites for enhancing the noise-to-signal ratio of MRI. To develop a method that can more efficiently diagnose and simultaneously treat HCC during MRI examination, we designed a functionalized montmorillonite (MMT) material with a porous structure to benefit related drugs, such as mitoxantrone (MIT) delivery or as a carrier for the FePt nanoparticles (FePt NPs) to introduce cancer therapy. Multifunctional FePt@MMT can simultaneously visualize HCC by enhancing MRI signals, treating various diseases, and being used as an inducer of magnetic fluid hyperthermia (MFH). After loading the drug MIT, FePt@MMT-MIT provides both MFH treatment and chemotherapy in one nanosystem. These results ultimately prove that functionalized FePt@MMT-MIT could be integrated as a versatile drugs delivery system by combining with MRI, chemotheraeutic drugs, and magnetic guide targeting. Supplementary Information The online version contains supplementary material available at 10.1186/s12951-021-01052-7.
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- 2021
29. PolyProc: A Modular Processing Pipeline for X-ray Diffraction Tomography
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Jiwoong Kang, Ashwin J. Shahani, Ning Lu, Nancy Senabulya, and Issac Loo
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Diffraction ,0303 health sciences ,Orientation (computer vision) ,Computer science ,Pipeline (computing) ,ComputingMethodologies_IMAGEPROCESSINGANDCOMPUTERVISION ,02 engineering and technology ,Filter (signal processing) ,021001 nanoscience & nanotechnology ,Texture (geology) ,Industrial and Manufacturing Engineering ,Computational science ,Diffraction tomography ,03 medical and health sciences ,Hungarian algorithm ,Data structure alignment ,General Materials Science ,0210 nano-technology ,030304 developmental biology - Abstract
Direct imaging of three-dimensional microstructure via X-ray diffraction-based techniques gives valuable insight into the crystallographic features that influence materials properties and performance. For instance, X-ray diffraction tomography provides information on grain orientation, position, size, and shape in a bulk specimen. As such techniques become more accessible to researchers, demands are placed on processing the datasets that are inherently “noisy,” multi-dimensional, and multimodal. To fulfill this need, we have developed a one-of-a-kind function package, PolyProc, that is compatible with a range of data shapes, from planar sections to time-evolving and three-dimensional orientation data. Our package comprises functions to import, filter, analyze, and visualize the reconstructed grain maps. To accelerate the computations in our pipeline, we harness computationally efficient approaches: for instance, data alignment is done via genetic optimization; grain tracking through the Hungarian method; and feature-to-feature correlation through k-nearest neighbors algorithm. As a proof-of-concept, we test our approach in characterizing the grain texture, topology, and evolution in a polycrystalline Al–Cu alloy undergoing coarsening.
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- 2019
30. Creating functional chromosome fusions in yeast with CRISPR–Cas9
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Xiaoli Xue, Ning Lu, Yangyang Shao, and Zhongjun Qin
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0303 health sciences ,Fungal genetics ,Chromosome ,Computational biology ,Biology ,Cleavage (embryo) ,General Biochemistry, Genetics and Molecular Biology ,Yeast ,03 medical and health sciences ,0302 clinical medicine ,Gene expression ,CRISPR ,Gene ,030217 neurology & neurosurgery ,Recombination ,030304 developmental biology - Abstract
CRISPR-Cas9-facilitated functional chromosome fusion allows the generation of a series of yeast strains with progressively reduced chromosome numbers that are valuable resources for the study of fundamental concepts in chromosome biology, including replication, recombination and segregation. We created a new yeast strain with a single chromosome by using the protocol for chromosome fusion described herein. To ensure the accuracy of chromosome fusions in yeast, the long redundant repetitive sequences near linear chromosomal ends are deleted, and the fusion orders are correspondingly determined. Possible influence on gene expression is minimized to retain gene functionality. This protocol provides experimentally derived guidelines for the generation of functional chromosome fusions in yeast, especially for the deletion of repetitive sequences, the determination of the fusion order and cleavage sites, and primary evaluation of the functionality of chromosome fusions. Beginning with design, one round of typical chromosome fusion and functional verifications can be accomplished within 18 d.
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- 2019
31. Associations between mammographic density and tumor characteristics in Chinese women with breast cancer
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Eric Tang, Jing Li, Yuan Tian, Gretchen L. Gierach, Ning Lu, Hela Koka, Xiaohong R. Yang, Ariane Chan, Nan Hu, Changyuan Guo, Joseph Deng, Hyuna Sung, Erni Li, Han Zhang, Jennifer L Guida, and Mengjie Li
- Subjects
Adult ,0301 basic medicine ,China ,Cancer Research ,medicine.medical_specialty ,Breast imaging ,Breast Neoplasms ,BI-RADS ,Overweight ,Article ,03 medical and health sciences ,0302 clinical medicine ,Breast cancer ,Risk Factors ,Biomarkers, Tumor ,Odds Ratio ,medicine ,Humans ,Neoplasm Metastasis ,Risk factor ,Aged ,Breast Density ,Neoplasm Staging ,business.industry ,Obstetrics ,MAMMOGRAPHIC DENSITY ,Middle Aged ,medicine.disease ,Immunohistochemistry ,030104 developmental biology ,Oncology ,030220 oncology & carcinogenesis ,Female ,Neoplasm Grading ,medicine.symptom ,Parity (mathematics) ,business ,Body mass index ,Mammography - Abstract
PURPOSE: Mammographic density (MD) is a strong risk factor for breast cancer, yet its relationship with tumor characteristics is not well established, particularly in Asian populations. METHODS: MD was assessed from a total of 2001 Chinese breast cancer patients using Breast Imaging Reporting and Data System (BI-RADS) categories. Molecular subtypes were defined using immunohistochemical status on ER, PR, HER2, and Ki-67, as well as tumor grade. Multinomial logistic regression was used to test associations between MD and molecular subtype (luminal A = reference) adjusting for age, body mass index (BMI), menopausal status, parity, and nodal status. RESULTS: The mean age at diagnosis was 51.7 years (SD = 10.7) and the average BMI was 24.7 kg/m(2) (SD = 3.8). The distribution of BI-RADS categories was 7.4% A = almost entirely fat, 24.2% B = scattered fibroglandular dense, 49.4% C = heterogeneously dense, and 19.0% D = extremely dense. Compared to women with BI-RADS = A/B, women with BI-RADS = D were more likely to have HER2-enriched tumors (OR = 1.81, 95% CI 1.08–3.06, p = 0.03), regardless of menopausal status. The association was only observed in women with normal (< 25 kg/m(2)) BMI (OR = 2.43, 95% CI 1.24–4.76, p < 0.01), but not among overweight/obese women (OR: 0.98, 95% CI 0.38–2.52, p = 0.96). CONCLUSIONS: Among Chinese women with normal BMI, higher breast density was associated with HER2-enriched tumors. The results may partially explain the higher proportion of HER2+ tumors previously reported in Asian women.
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- 2019
32. Bayesian analysis of the impact of rainfall data product on simulated slope failure for North Carolina locations
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Soni Yatheendradas, Dalia Kirschbaum, Ning Lu, Rick Wooten, Jasper A. Vrugt, Grey Nearing, Rex L. Baum, and Jonathan W. Godt
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Numerical & Computational Mathematics ,Poison control ,Soil science ,010103 numerical & computational mathematics ,01 natural sciences ,Article ,Soil survey ,Data assimilation ,Slope stability ,Precipitation ,0101 mathematics ,Computers in Earth Sciences ,satellite-based rain ,Hydrogeology ,Physically based model ,Landslide ,calibration ,sensitivity ,Other Earth Sciences ,Computer Science Applications ,Computational Mathematics ,Factor of safety ,Computational Theory and Mathematics ,Environmental science - Abstract
In the past decades, many different approaches have been developed in the literature to quantify the load-carrying capacity and geotechnical stability (or the Factor of Safety, F(s)) of variably saturated hillslopes. Much of this work has focused on a deterministic characterization of hillslope stability. Yet, simulated F(s) values are subject to considerable uncertainty due to our inability to characterize accurately the soil mantle’s properties (hydraulic, geotechnical and geomorphologic) and spatiotemporal variability of the moisture content of the hillslope interior. This is particularly true at larger spatial scales. Thus, uncertainty-incorporating analyses of physically based models of rain-induced landslides are rare in the literature. Such landslide modeling is typically conducted at the hillslope scale using gauge-based rainfall forcing data with rather poor spatiotemporal coverage. For regional landslide modeling, the specific advantages and/or disadvantages of gauge-only, radar-merged and satellite-based rainfall products are not clearly established. Here, we compare and evaluate the performance of the Transient Rainfall Infiltration and Grid-based Regional Slope-stability analysis (TRIGRS) model for three different rainfall products using 112 observed landslides in the period between 2004 and 2011 from the North Carolina Geological Survey database. Our study includes the Tropical Rainfall Measuring Mission (TRMM) Multi-satellite Precipitation Analysis Version 7 (TMPA V7), the North American Land Data Assimilation System Phase 2 (NLDAS-2) analysis, and the reference ‘truth’ Stage IV precipitation. TRIGRS model performance was rather inferior with the use of literature values of the geotechnical parameters and soil hydraulic properties from ROSETTA using soil textural and bulk density data from SSURGO (Soil Survey Geographic database). The performance of TRIGRS improved considerably after Bayesian estimation of the parameters with the DiffeRential Evolution Adaptive Metropolis (DREAM) algorithm using Stage IV precipitation data. Hereto, we use a likelihood function that combines binary slope failure information from landslide event and ‘null’ periods using multivariate frequency distribution-based metrics such as the False Discovery and False Omission Rates. Our results demonstrate that the Stage IV-inferred TRIGRS parameter distributions generalize well to TMPA and NLDAS-2 precipitation data, particularly at sites with considerably larger TMPA and NLDAS-2 rainfall amounts during landslide events than null periods. TRIGRS model performance is then rather similar for all three rainfall products. At higher elevations, however, the TMPA and NLDAS-2 precipitation volumes are insufficient and their performance with the Stage IV-derived parameter distributions indicate their inability to accurately characterize hillslope stability.
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- 2019
33. A note on the paper 'A novel approach of graphical rectangular b-metric spaces with an application to the vibrations of a vertical heavy hanging cable'
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Fei He, Ning Lu, and Shu-Fang Li
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Algebra ,Vibration ,Metric space ,TheoryofComputation_MATHEMATICALLOGICANDFORMALLANGUAGES ,Applied Mathematics ,Modeling and Simulation ,Fixed-point theorem ,Geometry and Topology ,Fundamental lemma ,Mathematical proof ,Counterexample ,Mathematics - Abstract
In this work, a counterexample is given to refute a result in the paper by Younis et al. (J Fixed Point Theory Appl 21:1–33, 2019). Furthermore, applying this counterexample, we give negative answers to some of the open problems in their paper. Recently, Baradol et al. give a new theorem to rectify the result of Younis et al. However, we find that there are some gaps in the proofs of their results. Finally, we introduce a fundamental lemma and fill these gaps.
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- 2020
34. Hourly 5-km surface total and diffuse solar radiation in China, 2007–2018
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Hou Jiang, Ning Lu, Jun Qin, and Ling Yao
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Statistics and Probability ,Data Descriptor ,010504 meteorology & atmospheric sciences ,Correlation coefficient ,Mean squared error ,020209 energy ,Climate change ,02 engineering and technology ,Library and Information Sciences ,Radiation ,Atmospheric sciences ,01 natural sciences ,Education ,0202 electrical engineering, electronic engineering, information engineering ,Atmospheric science ,lcsh:Science ,Image resolution ,0105 earth and related environmental sciences ,Photovoltaic system ,Computer Science Applications ,Common spatial pattern ,Environmental science ,lcsh:Q ,Satellite ,Statistics, Probability and Uncertainty ,Information Systems - Abstract
Surface solar radiation is an indispensable parameter for numerical models, and the diffuse component contributes to the carbon uptake in ecosystems. We generated a 12-year (2007–2018) hourly dataset from Multi-functional Transport Satellite (MTSAT) satellite observations, including surface total solar radiation (Rs) and diffuse radiation (Rdif), with 5-km spatial resolution through deep learning techniques. The used deep network tacks the integration of spatial pattern and the simulation of complex radiation transfer by combining convolutional neural network and multi-layer perceptron. Validation against ground measurements shows the correlation coefficient, mean bias error and root mean square error are 0.94, 2.48 W/m2 and 89.75 W/m2 for hourly Rs and 0.85, 8.63 W/m2 and 66.14 W/m2 for hourly Rdif, respectively. The correlation coefficient of Rs and Rdif increases to 0.94 (0.96) and 0.89 (0.92) at daily (monthly) scales, respectively. The spatially continuous hourly maps accurately reflect regional differences and restore the diurnal cycles of solar radiation at fine resolution. This dataset can be valuable for studies on regional climate changes, terrestrial ecosystem simulations and photovoltaic applications., Measurement(s) stellar radiation • global solar radiation • diffuse solar radiation Technology Type(s) satellite imaging of a planet • neural network model Factor Type(s) year of data collection • hourly, daily and monthly radiation measurements Sample Characteristic - Environment climate system Sample Characteristic - Location China Machine-accessible metadata file describing the reported data: 10.6084/m9.figshare.12864251
- Published
- 2020
35. HER2 expression and relevant clinicopathological features in esophageal squamous cell carcinoma in a Chinese population
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Lulu Rong, Bingzhi Wang, Liyan Xue, Xiuyun Liu, Ning Lu, Bingning Wang, Lei Guo, and Jianming Ying
- Subjects
Adult ,Male ,Oncology ,medicine.medical_specialty ,Pathology ,Histology ,Esophageal Neoplasms ,Receptor, ErbB-2 ,medicine.medical_treatment ,Pathology and Forensic Medicine ,Dual-color in situ hybridization ,Clinicopathological characteristics ,Breast cancer ,Asian People ,Esophageal squamous cell carcinoma ,HER2 ,Internal medicine ,Biomarkers, Tumor ,lcsh:Pathology ,Humans ,Medicine ,Stage (cooking) ,skin and connective tissue diseases ,neoplasms ,In Situ Hybridization, Fluorescence ,Neoadjuvant therapy ,Aged ,Retrospective Studies ,Aged, 80 and over ,Tissue microarray ,business.industry ,Research ,Gene Amplification ,Reproducibility of Results ,Cancer ,Retrospective cohort study ,General Medicine ,Middle Aged ,medicine.disease ,Immunohistochemistry ,Esophagectomy ,Female ,business ,lcsh:RB1-214 - Abstract
Background Despite great progress in surgery and other treatments, the prognosis of patients with esophageal squamous cell carcinoma (ESCC) is still very poor. HER2 has strong therapeutic implications in certain cancers, such as breast cancer and gastric cancer. However, literature on the frequency of HER2 expression in ESCC is scarce. In the present study, HER2 protein expression, HER2 gene amplification and the relationship between HER2 status and clinicopathological characteristics were evaluated in a large cohort of Chinese ESCC patients. Methods A total of 857 consecutive ESCC patients who received radical esophagectomy without neoadjuvant therapy between January 2014 and October 2015 were included in this retrospective study. HER2 protein expression was analyzed by immunohistochemistry (IHC), and its correlation with clinicopathological parameters was assessed. In addition, 65 cases, including 13 HER2 overexpression (3+) cases and 52 HER2 equivocal (2+) cases from the 857-case cohort, and another 104 ESCC cases, including 1 HER2 overexpression (3+) case, 3 HER2 equivocal (2+) cases and 100 HER2 negative (1+/0) cases, were selected to construct tissue microarrays (TMAs). Dual-color in situ hybridization (DISH) was performed on the TMAs to assess HER2 gene amplification and the relationship with clinicopathological parameters. Results We found HER2 overexpression (3+) status in 1.5% (13/857) of cases and HER2 equivocal (2+) status in 6.1% (52/857) of cases. HER2 IHC expression was significantly associated with gender (P = 0.028). However, there were no significant correlations between HER2 IHC expression and age, tumor differentiation, pT stage, pN stage, pM stage and pTNM stage (P > 0.05). Regarding the 169 cases analyzed by DISH, 14 (of 14, 100%) HER2 overexpression (3+) cases, 10 (of 55, 18.2%) HER2 equivocal (2+) cases, and 0 (of 100, 0%) HER2 negative (1+/0) cases showed HER2 gene amplification. HER2 gene amplification was not significantly associated with clinicopathological characteristics such as age, gender, tumor differentiation, pT stage, pN stage, pM stage and pTNM stage (P > 0.05). Conclusions Approximately 1.5% of the Chinese ESCC patients had HER2 overexpression based on IHC. IHC and DISH had a high concordance rate. These results provide valuable insight for the future treatment of ESCC.
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- 2020
36. Evaluation of Reanalysis Surface Incident Solar Radiation Data in China
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Xingxing Zhang, Hou Jiang, Ling Yao, and Ning Lu
- Subjects
010504 meteorology & atmospheric sciences ,020209 energy ,Sichuan basin ,lcsh:Medicine ,Energy access ,02 engineering and technology ,Radiation ,01 natural sciences ,Article ,Data assimilation ,Hotspot (geology) ,0202 electrical engineering, electronic engineering, information engineering ,Atmospheric science ,Climate change ,lcsh:Science ,China ,0105 earth and related environmental sciences ,Energy supply and demand ,Multidisciplinary ,business.industry ,lcsh:R ,Radiant energy ,Solar energy ,Climatology ,Environmental science ,lcsh:Q ,business ,Water vapor - Abstract
Surface incident solar radiation (Rs) of reanalysis products is widely used in ecological conservation, agricultural production, civil engineering and various solar energy applications. It is of great importance to have a good knowledge of the uncertainty of reanalysis Rs products. In this study, we evaluated the Rs estimates from two representative global reanalysis (ERA-Interim and MERRA-2) using quality- controlled surface measurements from China Meteorological Administration (CMA) and Multi-layer Simulation and Data Assimilation Center of the Tibetan Plateau (DAM) from 2000 to 2009. Error causes are further analyzed in combination radiation products from the Earth’s Radiant Energy System (CERES) EBAF through time series estimation, hotspot selection and Geodetector methods. Both the ERA-Interim and MERRA-2 products overestimate the Rs in China, and the MERRA-2 overestimation is more pronounced. The errors of the ERA-Interim are greater in spring and winter, while that of the MERRA-2 are almost the same in all seasons. As more quality-controlled measurements were used for validation, the conclusions seem more reliable, thereby providing scientific reference for rational use of these datasets. It was also found that the main causes of errors are the cloud coverage in the southeast coastal area, aerosol optical depth (AOD) and water vapor content in the Sichuan Basin, and cloud coverage and AOD in the northeast and middle east of China.
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- 2020
37. Correction to: Relationship between TRAF6 and deterioration of HCC: an immunohistochemical and in vitro study
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Gang Chen, Jie Yang, Gui-hui Qin, Hong Yang, Yongru Liu, Jie Luo, Xiao-na Liang, Jian-Jun Li, Yi-Wu Dang, Hua Ding, Li-Hua Yang, Yihuan Luo, and Jing-ning Lu
- Subjects
Oncology ,Cancer Research ,medicine.medical_specialty ,lcsh:Cytology ,business.industry ,Published Erratum ,MEDLINE ,lcsh:Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,lcsh:RC254-282 ,03 medical and health sciences ,0302 clinical medicine ,030220 oncology & carcinogenesis ,Internal medicine ,Genetics ,medicine ,In vitro study ,lcsh:QH573-671 ,business - Abstract
Following the publication of the original article [1], the authors reported that they had supplied the incorrect figure 6 for publication. The correct figure 6 is given in this correction article. The results and conclusions described therein are not affected by these corrections. The authors sincerely apologize for the error. This has now been included in this correction article.
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- 2020
38. Creating a functional single-chromosome yeast
- Author
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Ning Lu, Huajun Zheng, Chen Cai, Shijun Xiao, Yangyang Shao, Zhongjun Qin, Chen Yang, Lin Liu, Xiaofei Zeng, Fan Zhou, Shanshan Wang, Zhenfang Wu, Ling-Li Zhang, Jin-Qiu Zhou, Xiaoli Xue, Zhihu Zhao, and Guoping Zhao
- Subjects
0301 basic medicine ,Centromere ,Saccharomyces cerevisiae ,Genome ,Evolution, Molecular ,03 medical and health sciences ,Meiosis ,Chromosomes, Artificial, Yeast ,Genetics ,Microbial Viability ,Multidisciplinary ,biology ,Fungal genetics ,Chromosome ,Spores, Fungal ,Telomere ,biology.organism_classification ,Artificial Gene Fusion ,030104 developmental biology ,Synthetic Biology ,Genetic Fitness ,Ploidy ,Genetic Engineering ,Transcriptome - Abstract
Eukaryotic genomes are generally organized in multiple chromosomes. Here we have created a functional single-chromosome yeast from a Saccharomyces cerevisiae haploid cell containing sixteen linear chromosomes, by successive end-to-end chromosome fusions and centromere deletions. The fusion of sixteen native linear chromosomes into a single chromosome results in marked changes to the global three-dimensional structure of the chromosome due to the loss of all centromere-associated inter-chromosomal interactions, most telomere-associated inter-chromosomal interactions and 67.4% of intra-chromosomal interactions. However, the single-chromosome and wild-type yeast cells have nearly identical transcriptome and similar phenome profiles. The giant single chromosome can support cell life, although this strain shows reduced growth across environments, competitiveness, gamete production and viability. This synthetic biology study demonstrates an approach to exploration of eukaryote evolution with respect to chromosome structure and function.
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- 2018
39. Proposal of a New Treatment-Oriented Classification System for Spinal Deformity in Ankylosing Spondylitis
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Zheng Wang, Kai Song, Xue-Song Zhang, Keya Mao, Di-Yu Song, Yan Wang, Yong-Gang Zhang, Ning Lu, and Guoquan Zheng
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medicine.medical_specialty ,Ankylosing spondylitis ,business.industry ,Radiography ,Kyphosis ,medicine.disease ,Sagittal plane ,Osteotomy ,Surgery ,03 medical and health sciences ,0302 clinical medicine ,Lumbar ,medicine.anatomical_structure ,Orthopedic surgery ,Thoracolumbar kyphosis ,medicine ,Deformity ,Humans ,Spondylitis, Ankylosing ,Orthopedics and Sports Medicine ,030212 general & internal medicine ,medicine.symptom ,business ,030217 neurology & neurosurgery - Abstract
Objective To describe and apply an optimal classification system for the management of ankylosing spondylitis (AS) that may be appropriate to make a preoperative surgical plan. Background The treatment choices of ankylosing spondylitis kyphosis remain controversial. The lack of a widely accepted classification system contributes to the variation in surgical decision making. Methods The classification is mainly based on radiographic findings. The sagittal deformity of spine in ankylosing spondylitis is classified according to three criteria: the location of the apex, the lumbar modifier (A, lumbar lordosis 0°) and the thoracic/thoracolumbar kyphosis severity modifier (− or +). Results The ankylosing spondylitis kyphosis can be divided into 4 types according to the location of the apex: Type I (lumbar), Type II (thoracolumbar), Type III (thoracic), Type IV (cervical or cervicothoracic junction). Either Type II or Type III is further divided into four subtypes based on the lumbar modifier and the thoracic/thoracolumbar kyphosis severity modifier: Type IIA−, Type IIA+, Type IIB−, Type IIB+, Type IIIA−, Type IIIA+, Type IIIB−, and Type IIIB+. Surgical decision making for AS kyphosis can be made according to the new classification. Conclusion This new classification system can be used effectively to classify AS kyphosis, which can be used to guide surgical decision making, including determining the site and the levels of osteotomies. Further research may be needed to validate the classification.
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- 2018
40. Berberine protects renal tubular cells against hypoxia/reoxygenation injury via the Sirt1/p53 pathway
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Yuanbang Lin, Yayue Song, Ning Lu, Nan Zhang, Wenli Yu, Mingwei Sheng, Hongyin Du, and Yijie Ding
- Subjects
0301 basic medicine ,Small interfering RNA ,Berberine ,Apoptosis ,Protective Agents ,Transfection ,medicine.disease_cause ,03 medical and health sciences ,0302 clinical medicine ,Sirtuin 1 ,medicine ,Humans ,Viability assay ,Cell damage ,Kidney ,Renal ischemia ,Chemistry ,medicine.disease ,Molecular biology ,Cell Hypoxia ,030104 developmental biology ,medicine.anatomical_structure ,Reperfusion Injury ,030220 oncology & carcinogenesis ,Molecular Medicine ,Tumor Suppressor Protein p53 ,Reperfusion injury ,hormones, hormone substitutes, and hormone antagonists ,Oxidative stress - Abstract
Berberine (BBR) has been demonstrated to protect against renal ischemia/reperfusion injury; however, the underlying molecular mechanism is largely unknown. In the present study, we examined the role of silent information regulator 1 (Sirt1)/p53 in the protective effect of BBR on hypoxia/reoxygenation (H/R)-mediated mitochondrial dysfunction in rat renal tubular epithelial cells (NRK-52E cells). NRK-52E cells were preconditioned with small interfering RNA targeting Sirt1 (Sirt1-siRNA) and BBR before subjected to H/R. Cell damage was assessed by CCK8 assay and detection of oxidative parameters. The apoptotic rate was determined by flow cytometry and Hoechst 33258 staining. The expression of apoptotic markers, Sirt1, p53 and the translocation of p53 were examined by Western blotting assay. Nuclear p53 deacetylation by Sirt1 was detected using immunoprecipitation. Compared with the H/R group, BBR pretreatment increased cell viability and inhibited mitochondrial oxidative stress and apoptosis. Protein expression of Sirt1 was also enhanced along with a reduction of p53. Furthermore, both nuclear translocation of p53 and its acetylation were inhibited in NRK-52E cells pretreated with BBR. However, the knockdown of Sirt1 counteracted the renoprotection of BBR. BBR preconditioning protects rat renal tubular epithelial cells against H/R-induced mitochondrial dysfunction via regulating the Sirt1/p53 pathway.
- Published
- 2018
41. Fires and storms—a Triassic–Jurassic transition section in the Sichuan Basin, China
- Author
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Ning Lu, Ning Tian, Ning Zhou, Yongdong Wang, Mike Pole, Xiaoqing Zhang, Aowei Xie, Liqin Li, Chong Dong, and Xiaoping Xie
- Subjects
Extinction event ,010506 paleontology ,Global and Planetary Change ,Ecology ,Bedding ,Biodiversity ,Paleontology ,Geology ,Storm ,Structural basin ,010502 geochemistry & geophysics ,01 natural sciences ,Skolithos ,Section (archaeology) ,Fossil wood ,Ecology, Evolution, Behavior and Systematics ,0105 earth and related environmental sciences - Abstract
The Upper Triassic Xujiahe and Lower Jurassic Zhenzhuchong formations of the Sichuan Basin, China, are important sources of plant fossils and windows into the intervening extinction event. However, there is an on-going debate as to whether the environment represented by the Xujiahe and Zhenzhuchong formations was continental or included an important marine component. We studied the Xujiahe–Zhenzhuchong section near Qili Town of Xuanhan County, in the east of the basin and report hummocky and swaley cross-stratification in the Xujiahe Formation. This, along with minor Skolithos and heterolithic bedding, provides strong evidence for shallow marine conditions and favours an interpretation as the deposits of a wave-dominated coast. It also suggests common and extreme storm activity, possibly hurricanes, at what was a mid-latitude (c. 34–40°N) location in the Late Triassic. Charcoal is found in most samples throughout the section. The predominant fossil wood morphology is consistent with Xenoxylon. Together, the sedimentological evidence of storms and fire suggests a highly disturbed environment.
- Published
- 2018
42. A single circular chromosome yeast
- Author
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Yangyang Shao, Zhihu Zhao, Xiaoli Xue, Ning Lu, Guoping Zhao, Chen Cai, Fan Zhou, Shanshan Wang, Jin-Qiu Zhou, and Zhongjun Qin
- Subjects
Genetics ,Circular bacterial chromosome ,Yeast genetics ,Saccharomyces cerevisiae ,Cell Biology ,Biology ,Yeast ,chemistry.chemical_compound ,chemistry ,CRISPR-Cas Systems ,DNA, Circular ,Microorganisms, Genetically-Modified ,Chromosomes, Artificial, Yeast ,Letter to the Editor ,Molecular Biology ,DNA - Published
- 2018
43. LncRNA ST7-AS1, by regulating miR-181b-5p/KPNA4 axis, promotes the malignancy of lung adenocarcinoma
- Author
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Hu, Rong-Hang, primary, Zhang, Zi-Teng, additional, Wei, Hai-Xiang, additional, Ning, Lu, additional, Ai, Jiang-Shan, additional, Li, Wen-Hui, additional, Zhang, Heng, additional, and Wang, Shao-Qiang, additional
- Published
- 2020
- Full Text
- View/download PDF
44. Multi-area distributed three-phase state estimation for unbalanced active distribution networks
- Author
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Zhinong Wei, Guoqiang Sun, Zhu Ying, Yonghui Sun, Ning Lu, and Sheng Chen
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TK1001-1841 ,Distribution networks ,Computer science ,020209 energy ,State estimator ,TJ807-830 ,Energy Engineering and Power Technology ,02 engineering and technology ,Topology ,Renewable energy sources ,law.invention ,Set (abstract data type) ,Production of electric energy or power. Powerplants. Central stations ,Control theory ,law ,Distributed generator ,0202 electrical engineering, electronic engineering, information engineering ,Three-phase distributed generator (DG) models ,Distributed three-phase state estimation ,Augmented Lagrangian ,Renewable Energy, Sustainability and the Environment ,Augmented Lagrangian method ,020208 electrical & electronic engineering ,State (functional analysis) ,Three-phase ,Active distribution networks (ADNs) ,Pseudo-measurements ,Alternating current - Abstract
This paper proposes a new multi-area framework for unbalanced active distribution network (ADN) state estimation. Firstly, an innovative three-phase distributed generator (DG) model is presented to take the asymmetric characteristics of DG three-phase outputs into consideration. Then a feasible method to set pseudo -measurements for unmonitored DGs is introduced. The states of DGs, together with the states of alternating current (AC) buses in ADNs, were estimated by using the weighted least squares (WLS) method. After that, the ADN was divided into several independent subareas. Based on the augmented Lagrangian method, this work proposes a fully distributed three-phase state estimator for the multi-area ADN. Finally, from the simulation results on the modified IEEE 123-bus system, the effectiveness and applicability of the proposed methodology have been investigated and discussed.
- Published
- 2016
45. SOX4 is activated by C-MYC in prostate cancer
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Hongyan Dong, Xuemei Zhan, Xiao Tan, Jing Hu, Bo Han, Mei Qi, Ning Lu, Lin Wang, Xinnuo Bai, and Muyi Yang
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Male ,Cancer Research ,medicine.medical_specialty ,Poor prognosis ,Labeling index ,urologic and male genital diseases ,Proto-Oncogene Mas ,SOXC Transcription Factors ,Proto-Oncogene Proteins c-myc ,03 medical and health sciences ,Prostate cancer ,SOX4 ,0302 clinical medicine ,Prostate ,Cell Line, Tumor ,Internal medicine ,medicine ,Humans ,Gene ,In Situ Hybridization, Fluorescence ,Aged ,Hematology ,business.industry ,Prostatic Neoplasms ,General Medicine ,Middle Aged ,Gene deletion ,medicine.disease ,Immunohistochemistry ,Prostatic Neoplasms, Castration-Resistant ,HEK293 Cells ,medicine.anatomical_structure ,Oncology ,Tissue Array Analysis ,030220 oncology & carcinogenesis ,Cancer research ,business - Abstract
Although MYC proto-oncogene (C-MYC) amplification has been consistently reported to be a potential marker for prostate cancer (PCa) progression and prognosis, the clinicopathological and prognostic significance of C-MYC protein expression remains controversial. Overexpression of SOX4 has been shown to play important roles in multiple cancers including PCa. However, the link between these two critical genetic aberrations is unclear. In the current study, we showed that C-MYC was overexpressed in 16.2% (17/105) of Chinese patients with localized PCa. Overexpression of C-MYC was significantly associated with high Gleason scores (P = 0.012) and high Ki67 labeling index (P = 0.005). C-MYC overexpression was correlated with cancer-related mortality and suggested to be an unfavorable prognostic factor in Chinese PCa patients (P = 0.018). Overexpression of C-MYC is associated with SOX4 overexpression in PCa tissues. Notably, SOX4 is a direct target gene of C-MYC; C-MYC activates SOX4 expression via binding to its promoter. In addition, Co-IP analysis demonstrated a physical interaction between C-MYC and SOX4 protein in PCa cells. Clinically, C-MYC+/SOX4+ characterized poor prognosis in a subset of PCa patients. In total, C-MYC overexpression may contribute to PCa progression by activating SOX4. Our findings highlight an important role of C-MYC/SOX4 in PCa progression in a subset of PCa patients.
- Published
- 2019
46. Clinicopathological and epidemiological significance of breast cancer subtype reclassification based on p53 immunohistochemical expression
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Xiaohong R. Yang, Hela Koka, Ning Lu, Bin Zhou, Nan Hu, Changyuan Guo, Joseph Deng, Mustapha Abubakar, Mengjie Li, Jennifer L Guida, Hyuna Sung, and Nan Shao
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Oncology ,medicine.medical_specialty ,Proliferative index ,business.industry ,Odds ratio ,lcsh:Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,medicine.disease ,lcsh:RC254-282 ,Article ,Prognostic markers ,Basal (phylogenetics) ,Breast cancer ,Cancer epidemiology ,Hormone receptor ,Internal medicine ,Epidemiology of cancer ,Epidemiology ,medicine ,Immunohistochemistry ,Pharmacology (medical) ,Radiology, Nuclear Medicine and imaging ,business - Abstract
TP53 mutations are common in breast cancer and are typically associated with more aggressive tumor characteristics, but little is known about the clinicopathological and epidemiological relevance of p53 protein expression, a TP53 mutation surrogate, in breast cancer subtypes. In this study of 7226 Chinese women with invasive breast cancer, we defined breast cancer subtypes using immunohistochemical (IHC) measures of hormone receptors and HER2 in conjunction with histologic grade. p53 expression status was then used to further stratify subtypes into p53-positive and p53-negative. Odds ratios (ORs) and 95% confidence intervals (CIs) in case-only logistic regression analyses were used to examine heterogeneity across different subtypes. The frequency of p53 protein expression varied by breast cancer subtype, being lowest in the luminal A-like and highest in the triple-negative and HER2-enriched subtypes (P-value parous vs. nulliparous = 2.67 (1.60, 4.51); P-value ever vs. never = 1.38 (1.03, 1.85); P-value = 0.03]. p53 positivity was not associated with examined clinical and risk factors in other tumor subtypes. Overall, these findings suggest that p53 expression, which is readily available in many settings, can be used to identify phenotypes of luminal A-like breast cancer with distinct clinical and epidemiological implications.
- Published
- 2019
47. Answers to questions on the generalized Banach contraction conjecture in b-metric spaces
- Author
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Ning Lu, Huaping Huang, and Fei He
- Subjects
010101 applied mathematics ,Pure mathematics ,Metric space ,Conjecture ,Applied Mathematics ,Modeling and Simulation ,010102 general mathematics ,Fixed-point theorem ,Geometry and Topology ,0101 mathematics ,01 natural sciences ,Contraction (operator theory) ,Mathematics - Abstract
The purpose of this paper is to give positive answers to questions concerning the generalized Banach contraction conjecture in b-metric spaces proposed in Dung and Hang (J Fixed Point Theory Appl 20(1):1–20, 2018).
- Published
- 2019
48. Universally composable secure geographic area verification without pre-shared secret
- Author
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Ning Lu, Junwei Zhang, Jianfeng Ma, and Chao Yang
- Subjects
Provable security ,Ideal (set theory) ,General Computer Science ,Geographic area ,Computer science ,business.industry ,Initialization ,020207 software engineering ,02 engineering and technology ,Shared secret ,0202 electrical engineering, electronic engineering, information engineering ,Key management ,business ,Protocol (object-oriented programming) ,5G ,Computer network - Abstract
The geographic area information of smart devices is required for realizing efficient area-based operations in 5G networks, Internet of Things, and so on. Because majority of smart devices are unmanned and are deployed in a hostile environment, secure geographic area verification is one of the important security issues for ensuring the accuracy of geographic area information of smart devices. In this study, we investigate the composition security of geographic area verification in a universally composable (UC) framework. First, we design the ideal functionality of geographic area verification; further, we propose a novel pre-shared secret-free secure geographic area verification protocol ${\rm~CAV}_{\delta}$. We also propose an improved protocol ${\rm~CAV}^T_{\delta}$ exhibiting a smaller false accept ratio than that exhibited by ${\rm~CAV}_{\delta}$. The proposed protocols can be used for verifying the geographic area information of smart devices without the requirement of any pre-shared secret during the initialization phase and additional key management when the protocols are running. Furthermore, the proposed protocols support the batch verification of multiple smart devices in one run, which is considered to be suitable for several location-critical smart devices. Subsequently, in the UC framework, we proved that our protocols achieve the necessary composition security and that our protocols exhibit an ability to resist colluding attacks.
- Published
- 2019
49. Controllable growth of layered selenide and telluride heterostructures and superlattices using molecular beam epitaxy
- Author
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Xinyu Liu, Suresh Vishwanath, Debdeep Jena, Huili Grace Xing, Jacek K. Furdyna, Moon J. Kim, Katrina Magno, Juan Carlos Idrobo, Sergei Rouvimov, Robert M. Wallace, Angelica Azcatl, Ning Lu, and Leonardo Basile
- Subjects
Diffraction ,Materials science ,business.industry ,Mechanical Engineering ,Superlattice ,Nanotechnology ,Heterojunction ,02 engineering and technology ,010402 general chemistry ,021001 nanoscience & nanotechnology ,Condensed Matter Physics ,01 natural sciences ,0104 chemical sciences ,chemistry.chemical_compound ,chemistry ,Mechanics of Materials ,Selenide ,Telluride ,Monolayer ,Optoelectronics ,General Materials Science ,0210 nano-technology ,business ,Layer (electronics) ,Molecular beam epitaxy - Abstract
Layered materials are an actively pursued area of research for realizing highly scaled technologies involving both traditional device structures as well as new physics. Lately, non-equilibrium growth of 2D materials using molecular beam epitaxy (MBE) is gathering traction in the scientific community and here we aim to highlight one of its strengths, growth of abrupt heterostructures, and superlattices (SLs). In this work we present several of the firsts: first growth of MoTe2 by MBE, MoSe2 on Bi2Se3 SLs, transition metal dichalcogenide (TMD) SLs, and lateral junction between a quintuple atomic layer of Bi2Te3 and a triple atomic layer of MoTe2. Reflected high electron energy diffraction oscillations presented during the growth of TMD SLs strengthen our claim that ultrathin heterostructures with monolayer layer control is within reach.
- Published
- 2016
50. Probabilistic total transfer capability analysis based on static voltage stability region integrated with a modified distributed-level nodal-loading model
- Author
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Yue Zhou, Menghua Fan, Chengshan Wang, Hongjie Jia, Ning Lu, and Dan Wang
- Subjects
Engineering ,Operating point ,business.industry ,General Engineering ,Probabilistic logic ,Estimator ,Probability density function ,Function (mathematics) ,Power (physics) ,Normal distribution ,Control theory ,Kernel (statistics) ,General Materials Science ,business - Abstract
In this paper, a new evaluation method of probabilistic TTC based on SVSR calculation is developed through a hierarchical simulation. A smooth technology based on the non-parametric kernel estimator is adapted to obtain the time-dependent probabilistic density function of the feeder-head load data. In order to describe possible operating change directions of the operating point, the original hyper-cone-like (HCL) model is constructed to consider the probabilistic distribution function (PDF) extracted from feeder-head load data to replace the simple Normal Distribution model and the uncertain generator outputs. To realize the fast TTC calculation of the current operating point in random conditions, a sub-hyper-cone-like (SHCL) model in full power injections space is proposed, which is a similarity transformation of the original one.
- Published
- 2015
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