122 results on '"SHEN Nan"'
Search Results
2. sj-docx-1-cat-10.1177_10760296231179439 - Supplemental material for An Updated Pooled Analysis of Off-Label Under and Over-Dosed Direct Oral Anticoagulants in Patients with Atrial Fibrillation
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Shen, Nan-Nan, Ferroni, Eliana, Amidei, Claudio Barbiellini, Canova, Cristina, Peron, Viviana, Wang, Jia-Liang, Lin, Hou-Wen, and Gu, Zhi-Chun
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FOS: Clinical medicine ,Cardiology ,111599 Pharmacology and Pharmaceutical Sciences not elsewhere classified - Abstract
Supplemental material, sj-docx-1-cat-10.1177_10760296231179439 for An Updated Pooled Analysis of Off-Label Under and Over-Dosed Direct Oral Anticoagulants in Patients with Atrial Fibrillation by Nan-Nan Shen, Eliana Ferroni, Claudio Barbiellini Amidei, Cristina Canova, Viviana Peron, Jia-Liang Wang, Hou-Wen Lin and Zhi-Chun Gu in Clinical and Applied Thrombosis/Hemostasis
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- 2023
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3. Additional file 1 of The prediction of in-hospital mortality in chronic kidney disease patients with coronary artery disease using machine learning models
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Ye, Zixiang, An, Shuoyan, Gao, Yanxiang, Xie, Enmin, Zhao, Xuecheng, Guo, Ziyu, Li, Yike, Shen, Nan, Ren, Jingyi, and Zheng, Jingang
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Additional file 1: Fig. S1 Subgroup analysis showed via SHAP plot stratified by ACS. A: Impact of each feature on the in-hospital mortality in non-ACS patients; B: Impact of each feature on the in-hospital mortality in ACS patients.
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- 2023
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4. Additional file 1 of Association between the triglyceride glucose index and in-hospital and 1-year mortality in patients with chronic kidney disease and coronary artery disease in the intensive care unit
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Ye, Zixiang, An, Shuoyan, Gao, Yanxiang, Xie, Enmin, Zhao, Xuecheng, Guo, Ziyu, Li, Yike, Shen, Nan, and Zheng, Jingang
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Additional file 1: Figure S1 Feature selection for the relationship between various TyG indices and one-year mortality analyzed by the Boruta algorithm.
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- 2023
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5. Impact of multi-dimensional precarity on rough sleeping: Evidence from Hong Kong
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Siu-Ming Chan, Hung Wong, Tat-Chor Au-Yeung, and Shen-Nan Li
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Urban Studies - Published
- 2023
6. PDA-mediated Mild Photothermal Therapy Combined with Autophagy Inhibitors Kill Breast Cancer Cells
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LIU Yawen, LU Jiahui, NI Chen, HUANG Jie, HUANG Tianhao, SHEN Nan, DONG Yulin, SHI Meilin, and HU Junfeng
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near-infrared laser ,education ,technology, industry, and agriculture ,autophagy inhibition ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,mild photothermal therapy ,RC254-282 - Abstract
Objective To explore whether inhibiting autophagy can enhance the sensitivity of photothermal treatment under mild photothermal conditions. Methods CQ@PLGA@PDA NPs were prepared by an improved double emulsification method and a PDA-based surface modification method. After basic characterization, CCK-8 method was used to detect the cytotoxicity of nanoparticles; the near-infrared laser irradiation nanoparticle solution was used to detect the heating effect; CCK-8 method and live-dead cell staining were used to detect the killing effect of tumor cells; Western blot was used to detect the expression of autophagy-related proteins. Results The CQ@PLGA@PDA NPs were successfully prepared, with a particle size of 253.10±2.39 nm, a zeta potential of -22.57±0.80 mV, uniform particle size and good dispersion. The temperature of nanoparticle solution increased to 45℃ after the near-infrared laser irradiation for 10 min. CQ@PLGA@PDA NPs had no obvious toxicity to cells. The survival rates of breast cancer cell MDA-MB-231 and mouse embryonic fibroblast NIH-3T3 cell were above 95%. The inhibition of autophagy under mild photothermal conditions could improve the sensitivity of photothermal therapy. Conclusion The prepared CQ@PLGA@PDA NPs have good photothermal performance and high biological safety; by inhibiting autophagy, they can effectively kill tumor cells under mild photothermal conditions(< 50℃).
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- 2021
7. Novel Mutations in ACP5 and SAMHD1 in a Patient With Pediatric Systemic Lupus Erythematosus
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Hong, Soon-Min, Chen, Wei, Feng, Jiaqi, Dai, Dai, and Shen, Nan
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Pediatrics, Perinatology and Child Health - Abstract
BackgroundThe study of genetic predisposition to pediatric systemic lupus erythematosus (pSLE) has brought new insights into the pathophysiology of SLE, as it is hypothesized that genetic predisposition is greater in children. Furthermore, identifying genetic variants and linking disrupted genes to abnormal immune pathways and clinical manifestations can be beneficial for both diagnosis and treatment. Here, we identified genetic alterations in a patient with childhood-onset SLE and analyzed the immunological mechanisms behind them to support future diagnosis, prognosis, and treatment.MethodsWhole exome sequencing (WES) was adopted for genetic analysis of a patient with childhood-onset SLE. Gene mutations were confirmed by Sanger sequencing. Clinical data of this patient were collected and summarized. Ingenuity Pathway Analysis was used to provide interacting genes of the perturbed genes. Online Enrichr tool and Cytoscape software were used to analysis the related pathways of these genes.ResultsWe present a case of a 2-year-old girl who was diagnosed with idiopathic thrombocytopenic purpura (ITP) and SLE. The patient was characterized by cutaneous bleeding spots on both lower extremities, thrombocytopenia, decreased serum complements levels, increased urinary red blood cells, and positive ANA and dsDNA. The patient was treated with methylprednisolone and mycophenolate, but clinical remission could not be achieved. The genomic analysis identified three novel mutations in this pSLE patient, a double-stranded missense mutation in ACP5 (c.1152G>T and c.420G>A) and a single-stranded mutation in SAMHD1 (c.1423G>A). Bioinformatic analysis showed that these two genes and their interacting genes are enriched in the regulation of multiple immune pathways associated with SLE, including cytokine signaling and immune cell activation or function. Analysis of the synergistic regulation of these two genes suggests that abnormalities in the type I interferon pathway caused by genetic variants may contribute to the pathogenesis of SLE.ConclusionThe combined complexity of polymorphisms in the coding regions of ACP5 and SAMHD1 influences the susceptibility to SLE. Alterations in these genes may lead to abnormalities in the type I interferon pathway. Our study extends the spectrum of mutations in the ACP5 and SAMHD1 genes. The identification of these mutations could aid in the diagnosis of SLE with genetic counseling and suggest potential precise treatments for specific pathways.
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- 2022
8. Population genomics provides insights into the genetic basis of adaptive evolution in the mushroom-forming fungus Lentinula edodes
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Zhang, Jingcheng, Shen, Nan, Li, Chuang, Xiang, Xingjie, Liu, Gaolei, Gui, Ying, Patev, Sean, Hibbett, David S, Barry, Kerrie, Andreopoulos, William, Lipzen, Anna, Riley, Robert, He, Guifen, Yan, Mi, Grigoriev, Igor V, Shan Kwan, Hoi, Kit Cheung, Man, Bian, Yinbing, and Xiao, Yang
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Shiitake ,Genome ,Human Genome ,Shiitake Mushrooms ,Phenotypic differentiation ,Genetics ,GWAS ,Metagenomics ,Genetic divergence ,Generic health relevance ,Adaptation ,Agaricales ,Population genomics ,Genome-Wide Association Study ,Biotechnology - Abstract
IntroductionMushroom-forming fungi comprise diverse species that develop complex multicellular structures. In cultivated species, both ecological adaptation and artificial selection have driven genome evolution. However, little is known about the connections among genotype, phenotype and adaptation in mushroom-forming fungi.ObjectivesThis study aimed to (1) uncover the population structure and demographic history of Lentinula edodes, (2) dissect the genetic basis of adaptive evolution in L. edodes, and (3) determine if genes related to fruiting body development are involved in adaptive evolution.MethodsWe analyzed genomes and fruiting body-related traits (FBRTs) in 133 L. edodes strains and conducted RNA-seq analysis of fruiting body development in the YS69 strain. Combined methods of genomic scan for divergence, genome-wide association studies (GWAS), and RNA-seq were used to dissect the genetic basis of adaptive evolution.ResultsWe detected three distinct subgroups of L. edodes via single nucleotide polymorphisms, which showed robust phenotypic and temperature response differentiation and correlation with geographical distribution. Demographic history inference suggests that the subgroups diverged 36,871 generations ago. Moreover, L. edodes cultivars in China may have originated from the vicinity of Northeast China. A total of 942 genes were found to be related to genetic divergence by genomic scan, and 719 genes were identified to be candidates underlying FBRTs by GWAS. Integrating results of genomic scan and GWAS, 80 genes were detected to be related to phenotypic differentiation. A total of 364 genes related to fruiting body development were involved in genetic divergence and phenotypic differentiation.ConclusionAdaptation to the local environment, especially temperature, triggered genetic divergence and phenotypic differentiation of L. edodes. A general model for genetic divergence and phenotypic differentiation during adaptive evolution in L. edodes, which involves in signal perception and transduction, transcriptional regulation, and fruiting body morphogenesis, was also integrated here.
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- 2022
9. Effect of antitumor therapy on cancer patients infected by SARS‐CoV‐2: A systematic review and meta‐analysis
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Yu Liu, Zhou Li, Shen-Nan Wang, Shu Xia, Lingling Li, and Piao Li
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0301 basic medicine ,Cancer Research ,medicine.medical_specialty ,medicine.medical_treatment ,Cochrane Library ,chemotherapy ,03 medical and health sciences ,0302 clinical medicine ,systematic review ,COVID‐19 ,Neoplasms ,Internal medicine ,Epidemiology ,medicine ,Humans ,cancer ,Radiology, Nuclear Medicine and imaging ,RC254-282 ,Aged ,Original Research ,Chemotherapy ,SARS-CoV-2 ,business.industry ,Incidence (epidemiology) ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,COVID-19 ,Clinical Cancer Research ,Cancer ,Odds ratio ,Middle Aged ,medicine.disease ,Confidence interval ,030104 developmental biology ,Oncology ,Radiology Nuclear Medicine and imaging ,meta‐analysis ,030220 oncology & carcinogenesis ,Meta-analysis ,business ,antitumor therapy - Abstract
Background Cancer patients are at a high risk of being infected with severe acute respiratory syndrome coronavirus 2 (SARS‐CoV‐2), and are more likely to develop severe illness and have higher mortality once infected. In the COVID‐19 pandemic, it is urgent to understand the effects of antitumor therapy on the prognosis of patients with COVID‐19. Methods A systematic literature search was conducted in PubMed, Cochrane Library, Embase, MedRxiv, and Chinese National Knowledge Infrastructure (CNKI) until 21 June 2020. Odds ratios (ORs) and 95% confidence intervals (95% CIs) were evaluated using a random effects model to analyze the effects of antitumor therapies on COVID‐19 patients. Results For cancer patients with COVID‐19, the death events related to antitumor treatment were higher than those with no antitumor treatment (OR = 1.55; 95% CI 1.07–2.25; p = 0.021). Compared with patients in the survival group, the non‐survival group showed no significant differences in patients who received antitumor therapy. Compared with patients in the non‐severe group, the severe group was more likely to receive antitumor therapy (OR = 1.50; 95% CI 1.02–2.19; p = 0.037) and there was a significant difference. The incidence of severe events was higher in the subgroup of chemotherapy (OR = 1.73; 95% CI 1.09–2.73). Conclusion The synthesized evidence suggests that cancer patients with COVID‐19 who received antitumor treatment shortly before symptom onset are more likely to experience severe symptoms and have high mortality. Receiving chemotherapy is an unfavorable factor for the prognosis of cancer patients with COVID‐19., Patients with cancer and COVID‐19 who received anti‐tumor treatment shortly before symptom onset are more likely to develop severe illness and have high a mortality. Receiving chemotherapy is an unfavorable factor for the prognosis of patients with COVID‐19.
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- 2021
10. Carbonic Anhydrase 4 serves as a Clinicopathological Biomarker for Outcomes and Immune Infiltration in Renal Cell Carcinoma, Lower Grade Glioma, Lung Adenocarcinoma and Uveal Melanoma
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Wenhao Xu, Xiao-Feng Zhang, Hailiang Zhang, Xiao-Long Yang, Shen-Nan Shi, Yue Xu, Ya-Ru Ren, Yuan-Yuan Qu, and Xin-Yu Zhuang
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0301 basic medicine ,03 medical and health sciences ,0302 clinical medicine ,Immune system ,Renal cell carcinoma ,Glioma ,Medicine ,Survival analysis ,Kidney ,tumor immune microenvironment ,Lung ,business.industry ,immune infiltration ,Melanoma ,medicine.disease ,030104 developmental biology ,medicine.anatomical_structure ,Oncology ,030220 oncology & carcinogenesis ,Cancer research ,Adenocarcinoma ,carbonic anhydrase 4 ,biomarker ,prognosis ,business ,Research Paper - Abstract
Background: Carbonic anhydrase 4 (CA4) maintains homeostasis of carbon dioxide and bicarbonate. It is suggested to be a potential prognostic biomarker, while the correlations between CA4 and different cancers are indistinct. Methods: Differential mRNA expression of CA4 among different cancers and corresponding normal tissues was compared based on datasets on the Cancer Genome Atlas (TCGA) platforms. Then, survival analysis was performed using Tumor-immune system interactionsplatform and TCGA cohort on the basis of distinct comparison expression of CA4 in five kinds of tumors. In addition, molecular penal analysis and functional annotations of CA4-related genes was elaborated. The correlation between CA4 mRNA expression and tumor immune microenvironment were analyzed in detail. Results: Compared with adjacent normal tissues, CA4 mRNA expressions were found significantly lower in various tumors. Moreover, decreased expression of CA4 was significantly related to worse overall survival (OS) and progression-free survival (PFS) in kidney renal clear cell carcinoma (KIRC), brain lower grade glioma (LGG), lung adenocarcinoma (LUAD) and uveal melanoma (UVM), and worse OS of prostate adenocarcinoma (PRAD) (p
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- 2020
11. Identification of potential novel differentially-expressed genes and their role in invasion and migration in renal cell carcinoma
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Xigao Liu, Shen-Nan Shi, Benkang Shi, Wenfu Wang, Yu Lin, Zun-lin Zhou, Yaofeng Zhu, Shuo Wang, and Xia Qin
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TIMP1 ,Aging ,renal cell carcinoma ,Computational biology ,Biology ,migration ,Kidney ,Renal cell carcinoma ,Cell Line, Tumor ,medicine ,Humans ,Gene ,Carcinoma, Renal Cell ,Integrative bioinformatics ,Gene Expression Profiling ,Cancer ,Cell Biology ,medicine.disease ,invasion ,Kidney Neoplasms ,Biomarker (cell) ,Gene Expression Regulation, Neoplastic ,Clear cell renal cell carcinoma ,HEK293 Cells ,biomarker ,Signal transduction ,Transcriptome ,Kidney cancer ,Research Paper - Abstract
Clear cell renal cell carcinoma (ccRCC) remains one of the most common cancer types globally, and while it has been extensively studied, the molecular basis for its pathology remains incompletely understood. Herein, we profiled three previously published datasets (GSE66272, GSE100666, and GSE105261) in a single integrated analysis aimed at identifying disease-associated patterns of gene expression that may offer mechanistic insight into the drivers of this disease. We pooled expression data from 39 normal kidney samples and 39 kidney tumors, leading us to identify 310 differentially expressed genes (DEGs) that were linked to kidney cancer in all three analyzed datasets. Of these genes, 133 and 177 were up- and down-regulated, respectively, in cancer samples. We then incorporated these DEGs into a protein-protein interaction network with the STRING and Cytoscape tools, and we were able to identify signaling pathways significantly enriched for these DEGs. The relationship between DEG expression and ccRCC patient survival was further evaluated using a Kaplan-Meier approach, leading us to identify TIMP1 as an independent prognostic factor in ccRCC patients. When TIMP1 expression was disrupted in ccRCC cell lines, this impaired their migratory and invasive capabilities. In summary, we employed an integrative bioinformatics approach to identify ccRCC-related DEGs and associated signaling pathways. Together these findings offer novel insight into the mechanistic basis for ccRCC, potentially helping to identify novel therapeutic targets for the treatment of this deadly disease.
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- 2020
12. Elaiophylin triggers paraptosis and preferentially kills ovarian cancer drug-resistant cells by inducing MAPK hyperactivation
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Guan-Nan Li, Xue-Jiao Zhao, Zhen Wang, Meng-Shi Luo, Shen-Nan Shi, Dan-Mei Yan, Hua-Yi Li, Jia-Hao Liu, Yang Yang, Jia-Hong Tan, Ze-Yu Zhang, Ru-Qi Chen, Hui-Ling Lai, Xiao-Yuan Huang, Jian-Feng Zhou, Ding Ma, Yong Fang, and Qing-Lei Gao
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Ovarian Neoplasms ,Cancer Research ,Mice ,Cell Line, Tumor ,Genetics ,Animals ,Humans ,Antineoplastic Agents ,Apoptosis ,Female ,Macrolides ,Mitogen-Activated Protein Kinases - Abstract
Finely tuned mitogen-activated protein kinase (MAPK) signaling is important for cancer cell survival. Perturbations that push cells out of the MAPK fitness zone result in cell death. Previously, in a screen of the North China Pharmaceutical Group Corporation’s pure compound library of microbial origin, we identified elaiophylin as an autophagy inhibitor. Here, we demonstrated a new role for elaiophylin in inducing excessive endoplasmic reticulum (ER) stress, ER-derived cytoplasmic vacuolization, and consequent paraptosis by hyperactivating the MAPK pathway in multiple cancer cells. Genome-wide CRISPR/Cas9 knockout library screening identified SHP2, an upstream intermediary of the MAPK pathway, as a critical target in elaiophylin-induced paraptosis. The cellular thermal shift assay (CETSA) and surface plasmon resonance (SPR) assay further confirmed the direct binding between the SHP2 and elaiophylin. Inhibition of the SHP2/SOS1/MAPK pathway through SHP2 knockdown or pharmacological inhibitors distinctly attenuated elaiophylin-induced paraptosis and autophagy inhibition. Interestingly, elaiophylin markedly increased the already-elevated MAPK levels and preferentially killed drug-resistant cells with enhanced basal MAPK levels. Elaiophylin overcame drug resistance by triggering paraptosis in multiple tumor-bearing mouse models resistant to platinum, taxane, or PARPi, suggesting that elaiophylin might offer a reasonable therapeutic strategy for refractory ovarian cancer.
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- 2022
13. Additional file 1 of Urinary galectin-3 binding protein (G3BP) as a biomarker for disease activity and renal pathology characteristics in lupus nephritis
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Ding, Huihua, Shen, Yiwei, Lin, Cheng, Qin, Ling, He, Shijun, Dai, Min, Okitsu, Shinji L., DeMartino, Julie A., Guo, Qiang, and Shen, Nan
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Additional file 1: Supplemental Figure 1. Urine G3BP levels in different groups of patients after excluding top 8 uG3BP level active LN patients. (a) uG3BP levels were significantly increased in active LN patients (n=78) compared to those in inactive LN (n=33, p=0.008), CKD patients (n=30, p=0.03) and healthy controls (n=27, p
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- 2022
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14. Screening, identification and validation of CCND1 and PECAM1/CD31 for predicting prognosis in renal cell carcinoma patients
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Feng Li, Rui Wang, Yunhua Qiu, Xiaoyun Song, Xiqiu Zhou, Jinzhou Zheng, Jianfeng Yang, Hailiang Zhang, Kui Yu, Shen-Nan Shi, Yuan-Yuan Qu, Wenhao Xu, and Yu Wang
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Aging ,Candidate gene ,clear cell renal cell carcinoma ,Biology ,CXCR4 ,CCND1 ,Pathogenesis ,Renal cell carcinoma ,Biomarkers, Tumor ,medicine ,Humans ,Cyclin D1 ,Carcinoma, Renal Cell ,Gene ,Gene Expression Profiling ,ccRCC ,Cancer ,Cell Biology ,Prognosis ,PECAM1/CD31 ,medicine.disease ,Kidney Neoplasms ,Biomarker (cell) ,Platelet Endothelial Cell Adhesion Molecule-1 ,Clear cell renal cell carcinoma ,Disease Progression ,Cancer research ,biomarker ,Transcriptome ,Research Paper - Abstract
Clear cell renal cell carcinoma (ccRCC) is one of the most common cancers worldwide. Despite intense efforts to elucidate its pathogenesis, the molecular mechanisms and genetic characteristics of this cancer remain unknown. In this study, three expression profile data sets (GSE15641, GSE16441 and GSE66270) were integrated to identify candidate genes that could elucidate functional pathways in ccRCC. Expression data from 63 ccRCC tumors and 54 normal samples were pooled and analyzed. The GSE profiles shared 379 differentially expressed genes (DEGs), including 249 upregulated genes, and 130 downregulated genes. A protein-protein interaction network (PPI) was constructed and analyzed using STRING and Cytoscape. Functional and signaling pathways of the shared DEGs with significant p values were identified. Kaplan-Meier plots of integrated expression scores were used to analyze survival outcomes. These suggested that FN1, ICAM1, CXCR4, TYROBP, EGF, CAV1, CCND1 and PECAM1/CD31 were independent prognostic factors in ccRCC. Finally, to investigate early events in renal cancer, we screened for the hub genes CCND1 and PECAM1/CD31. In summary, integrated bioinformatics analysis identified candidate DEGs and pathways in ccRCC that could improve our understanding of the causes and underlying molecular events of ccRCC. These candidate genes and pathways could be therapeutic targets for ccRCC.
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- 2019
15. The Role of Serine Peptidase Inhibitor Kazal Type 13 (SPINK13) as a Clinicopathological and Prognostic Biomarker in Patients with Clear Cell Renal Cell Carcinoma
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Fangning Wan, Shen-Nan Shi, Dalong Cao, Xi Tian, Wenhao Xu, Jun Wang, Hailiang Zhang, Dingwei Ye, Yuan-Yuan Qu, and Yue Xu
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Adult ,Male ,Epithelial-Mesenchymal Transition ,Human Protein Atlas ,Kaplan-Meier Estimate ,030204 cardiovascular system & hematology ,Disease-Free Survival ,03 medical and health sciences ,0302 clinical medicine ,Clinical Research ,Renal cell carcinoma ,Databases, Genetic ,Biomarkers, Tumor ,Carcinoma ,Humans ,Medicine ,Microarray databases ,Epithelial–mesenchymal transition ,Carcinoma, Renal Cell ,Gene ,Aged ,Cell Proliferation ,Serine Peptidase Inhibitors, Kazal Type ,business.industry ,Computational Biology ,General Medicine ,Middle Aged ,Prognosis ,medicine.disease ,Kidney Neoplasms ,Clear cell renal cell carcinoma ,030220 oncology & carcinogenesis ,Proteome ,Cancer research ,Female ,Biological Markers ,business - Abstract
BACKGROUND The serine peptidase inhibitor Kazal type 13 (SPINK13) gene has tumor suppressor activity, but its role in renal cell carcinoma (RCC) remains unknown. This study aimed to investigate mRNA expression of SPINK13 in clear cell renal cell carcinoma (CCRCC) in human tissue and to use bioinformatics data to investigate the role of SPINK13 expression as a clinicopathological and prognostic biomarker for patients with CCRCC. MATERIAL AND METHODS Patients with CCRCC (N=533) with available RNA sequence data from The Cancer Genome Atlas (TCGA)-CCRCC database were analyzed with patients who had a tissue diagnosis of CCRCC (N=305) at the Fudan University Shanghai Cancer Center (FUSCC). Differential transcriptional and proteome expression profiles were obtained from the ONCOMINE cancer microarray database, TCGA, and the Human Protein Atlas (HPA) database. Quantitative reverse transcription-polymerase chain reaction (RT-qPCR) measured SPINK13 mRNA expression in 305 samples of CCRCC tissue from the FUSCC. The effects of clinicopathological parameters on progression-free survival (PFS) and overall survival (OS) were analyzed using the Kaplan-Meier and log-rank test. RESULTS Transcriptional and proteome expression of SPINK13 were significantly increased CCRCC tissue samples. Increased SPINK13 mRNA expression was significantly associated with reduced PFS and OS in 838 patients with CCRCC patients from the two independent cohorts, the FUSCC and the TCGA-CCRCC cohorts (p
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- 2019
16. Down-regulated hsa_circ_0067934 facilitated the progression of gastric cancer by sponging hsa-mir-4705 to downgrade the expression of BMPR1B
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Shen-Nan He, Wei Li, Shi-Hua Guan, Min Tao, Meng-Yao Wu, and Meng-Dan Xu
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Cancer Research ,Messenger RNA ,Bioinformatics analysis ,The Cancer Genome Atlas (TCGA) ,medicine.medical_treatment ,Geo database ,Biology ,medicine.disease_cause ,Gene Expression Omnibus (GEO) database ,BMPR1B ,Targeted therapy ,Oncology ,integrated bioinformatics ,microRNA ,Cancer research ,medicine ,Original Article ,circRNA ,Radiology, Nuclear Medicine and imaging ,KEGG ,Gastric cancer ,Carcinogenesis - Abstract
Background: Gastric cancer is the third most lethal cancer worldwide. Finding a novel marker is essential to targeted therapy and the diagnosis of gastric cancer. As newly discovered markers, circRNAs have aroused widespread attention on a global scale. Our research aims to understand the role of circRNAs in gastric cancer and to explore the underlying pathogenesis. Methods: Raw expression data of circRNAs were obtained from the GEO database. Integrated bioinformatics analysis was used to screen differentially expressed circRNAs (DECs) by RobustRankAggreg package. Gene Ontology (GO) and Kyoto Encyclopedia of Genes and Genomes (KEGG) analysis were performed to predict the functions of DECs. Then, the miRNAs and mRNAs at the downstream of DECs were predicted. Expression data of miRNAs and mRNAs were downloaded from The Cancer Genome Atlas (TCGA). The aberrantly expressed miRNAs and mRNAs were selected using the edgeR package. Results: Four datasets (GSE78092, GSE83521, GSE89143, and GSE93541) were downloaded from the GEO database. Among them, two DECs ( hsa_circ_0007991 and hsa_circ_0067934 ) were screened. The functional analyses of DECs confirmed that they were cancer-related circRNAs. Furthermore, hsa-mir-4705 (miRNA) and BMPR1B (mRNA) at the downstream of hsa_circ_0067934 were found differentially expressed in gastric cancer by expression data from TCGA database. Conclusions: Our study discovered the critical roles of hsa_circ_0007991 and hsa_circ_0067934 in the development of gastric cancer, and they could be novel markers for targeted therapy and assist the diagnosis of early-stage gastric cancer. Moreover, we discovered that the hsa_circ_0067934/hsa-mir-4705/BMPR1B axis might be involved in the carcinogenesis of gastric cancer.
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- 2019
17. Prognostic implications of Aquaporin 9 expression in clear cell renal cell carcinoma
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Yue Xu, Guo Hai Shi, Yuan-Yuan Qu, Da Long Cao, Hong Kai Wang, Dingwei Ye, Jun Wang, Wenhao Xu, Hai Liang Zhang, and Shen Nan Shi
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0301 basic medicine ,Oncology ,Male ,Clear cell renal cell carcinoma ,medicine.medical_specialty ,Bioinformatics ,lcsh:Medicine ,Kaplan-Meier Estimate ,medicine.disease_cause ,Aquaporins ,General Biochemistry, Genetics and Molecular Biology ,Cohort Studies ,Translational Research, Biomedical ,03 medical and health sciences ,0302 clinical medicine ,Immune system ,AQP9 ,Internal medicine ,medicine ,Biomarkers, Tumor ,Humans ,Protein Interaction Maps ,RNA, Messenger ,Carcinoma, Renal Cell ,Aged ,Oncogene ,Receiver operating characteristic ,business.industry ,Proportional hazards model ,Research ,lcsh:R ,Area under the curve ,General Medicine ,Biomarker ,Middle Aged ,medicine.disease ,Prognosis ,Kidney Neoplasms ,Progression-Free Survival ,Up-Regulation ,Gene Expression Regulation, Neoplastic ,030104 developmental biology ,030220 oncology & carcinogenesis ,Proteome ,Female ,Carcinogenesis ,business ,Signal Transduction - Abstract
Background Growing evidence has demonstrated immune reactivity as a confirmed important carcinogenesis and therapy efficacy for clear cell renal cell carcinoma (ccRCC). Aquaporin 9 (AQP9) is involved in many immune-related signals; however, its role in ccRCC remains to be elucidated. This study investigated AQP9 expression in tumor tissues and defined the prognostic value in ccRCC patients. Methods A total of 913 ccRCC patients with available RNA-sequence data from the Cancer Genome Atlas (TCGA) database and Fudan University Shanghai Cancer Center (FUSCC) were consecutively recruited in analyses. Differential transcriptional and proteome expression profiles were obtained and validated using multiple datasets. A partial likelihood test from Cox regression analysis was developed to address the influence of independent factors on progression-free survival (PFS) and overall survival (OS). The Kaplan–Meier method and log-rank test were performed to assess survival. Receiver operating characteristic (ROC) curves were used to describe binary classifier value of AQP9 using area under the curve (AUC) score. Functional enrichment analyses and immune infiltration analysis were used to describe significantly involved hallmark pathways of hub genes. Results Significantly elevated transcriptional and proteomic AQP9 expressions were found in ccRCC samples. Increased AQP9 mRNA expression was significantly associated with advanced clinicopathological parameters and correlated with shorter PFS and OS in TCGA and FUSCC cohorts (p AQP9 (PFS, AUC = 0.823; OS, AUC = 0.828). Functional annotations indicated that AQP9 is involved in the most significant hallmarks including complement, coagulation, IL6/JAK–STAT3, inflammatory response and TNF-alpha signaling pathways. Conclusion Our study revealed that elevated AQP9 expression was significantly correlated with aggressive progression, poor survival and immune infiltrations in ccRCC patients, and we validated its prognostic value in a real-world cohort. These data suggest that AQP9 may act as an oncogene and a promising prognostic marker in ccRCC.
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- 2019
18. Serum soluble programmed cell death 1 levels predict spontaneous functional cure in inactive carriers with chronic hepatitis B
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Hui‐Han Hu, Wen‐Juei Jeng, Mei‐Hung Pan, Wun‐Sheng Luo, Chia‐Ling Chang, Yen‐Tsung Huang, Chien‐Yu Su, Chen‐Tse Chiang, Chin‐Lan Jen, Yu‐Chuan Chien, Shen‐Nan Lu, Li‐Yu Wang, Li‐Rung Huang, Mei‐Hsuan Lee, Jessica Liu, Mindie H. Nguyen, Chien‐Jen Chen, and Hwai‐I Yang
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Hepatitis B virus ,Hepatitis B Surface Antigens ,Hepatitis B, Chronic ,Hepatology ,DNA, Viral ,Programmed Cell Death 1 Receptor ,Gastroenterology ,Humans ,Pharmacology (medical) ,Apoptosis ,Hepatitis B e Antigens - Abstract
Hepatitis B surface antigen (HBsAg) seroclearance is the most important milestone indicating favourable clinical outcomes in patients with chronic hepatitis B (CHB). However, it is difficult to achieve due to the impaired HBV-specific immunity, such as programmed cell death 1 (PD-1)-associated T cell exhaustion. We assessed soluble PD-1 (sPD-1) as a novel seromarker for predicting spontaneous HBsAg loss.Serial serum levels of sPD-1 were evaluated in 1046 untreated hepatitis B e antigen (HBeAg)-seronegative individuals who had achieved undetectable serum HBV DNA. Multiple regression analyses were applied to assess associations among baseline and subsequent sPD-1 levels, HBsAg decline during follow-up, and spontaneous HBsAg seroclearance.A total of 390 individuals achieved spontaneous HBsAg seroclearance during 6464.4 person-years of follow-up. Baseline sPD-1 levels were inversely associated with baseline HBsAg levels (qHBsAg) as well as a greater decline in qHBsAg during follow-up. Incidence rates of HBsAg seroclearance were 11.5, 61.7, 96.7 and 151.0 per 1000 person-years for sPD-1 levels of ≥4000, 536-3999, 125-535 and125 pg/mL, respectively (PsPD-1 level is a novel marker which independently predicts spontaneous HBsAg seroclearance of HBeAg-negative inactive CHB patients with undetectable HBV DNA. (word count: 234,250).
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- 2021
19. Big Data Information Security Risk Framework Design and Countermeasures Based on DDoS Analysis
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Li Yuxiang, Zhang Haitao, Bo Jingyi, Shen Nan, and Wang Zhenyu
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- 2021
20. Bayesian Information Criterion for Linear Mixed-effects Models
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Shen, Nan and González, Bárbara
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Statistics - Applications - Abstract
The use of Bayesian information criterion (BIC) in the model selection procedure is under the assumption that the observations are independent and identically distributed (i.i.d.). However, in practice, we do not always have i.i.d. samples. For example, clustered observations tend to be more similar within the same group, and longitudinal data is collected by measuring the same subject repeatedly. In these scenarios, the assumption in BIC is not satisfied. The concept of effective sample size is brought up and improved BIC is defined by replacing the sample size in the original BIC expression with the effective sample size, which will give us a better theoretical foundation in the circumstance that mixed-effects models involve. Numerical experiment results are also given by comparing the performance of our new BIC with other widely used BICs.
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- 2021
21. Analysis of the Interception Ability of Electronic Reconnaissance Satellite on Ground-based Radars
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Qin Junwei, Shen Nan, and Lei Mengda
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Spaceborne radar ,Computer Science::Systems and Control ,Computer science ,Physics::Space Physics ,Satellite ,Astrophysics::Earth and Planetary Astrophysics ,Interception ,Physics::Atmospheric and Oceanic Physics ,Remote sensing ,Power (physics) - Abstract
After the detailed analysis of the application of electronic reconnaissance satellite in peacetime and wartime, this paper puts forward the effectiveness index and calculation model (reconnaissance minimum power) of the interception ability of electronic reconnaissance satellite on ground-based radars, considering if radiation signals of ground-based radars can be effectively intercepted by electronic reconnaissance satellite. Furthermore, this paper sets the typical tactical scenario in which HEO, LEO electronic reconnaissance satellites implement surveillance on ground-based warning radars and guided radars, and then quantitatively calculates the reconnaissance minimum power of two kinds of electronic reconnaissance satellites on typical ground-based radars operating in different power gears. The analysis of examples show that the effectiveness index and calculation model is reasonable and effective, providing a better tool for ground-based radars’ quantitative analysis on the space-based electronic reconnaissance threats.
- Published
- 2021
22. Research on the Choice of Marching Route Based on Decision Tree Method
- Author
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Zhu Tongxin and Shen Nan
- Subjects
Mathematical optimization ,Signal processing ,Computer science ,Occurrence probability ,Process (computing) ,Decision tree ,Expected loss - Abstract
This thesis transforms the choice of marching route into risky two-level decision-making by analyzing feasible alternative routes, road conditions and their occurrence probability. Based on the decision tree method, the thesis depicts a two-level decision tree of marching route. After calculating the expected marching time along each alternative route, the thesis identifies two-level optimal marching route based on the minimal expected loss criterion. The result of example analysis proves that the method is effective, and describes the process of multi-level decision-making of marching route in a clearer way.
- Published
- 2021
23. Bayesian Information Criterion for Linear Mixed-effects Models
- Author
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Shen, Nan and Gonz��lez, B��rbara
- Subjects
FOS: Computer and information sciences ,Applications (stat.AP) - Abstract
The use of Bayesian information criterion (BIC) in the model selection procedure is under the assumption that the observations are independent and identically distributed (i.i.d.). However, in practice, we do not always have i.i.d. samples. For example, clustered observations tend to be more similar within the same group, and longitudinal data is collected by measuring the same subject repeatedly. In these scenarios, the assumption in BIC is not satisfied. The concept of effective sample size is brought up and improved BIC is defined by replacing the sample size in the original BIC expression with the effective sample size, which will give us a better theoretical foundation in the circumstance that mixed-effects models involve. Numerical experiment results are also given by comparing the performance of our new BIC with other widely used BICs.
- Published
- 2021
- Full Text
- View/download PDF
24. Iron oxide based anode material for lithium ion battery
- Author
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Shen Nan, Madhavi Srinivasan, Interdisciplinary Graduate School (IGS), BMW Group, and Energetics Research Institute
- Subjects
chemistry.chemical_compound ,Materials science ,chemistry ,Engineering::Chemistry::Physical chemistry [DRNTU] ,Inorganic chemistry ,Iron oxide ,Lithium-ion battery ,Anode - Abstract
Iron oxide is ntensively studied as a potential anode material of lithium ion battery. Although it has a high theoretical capacity, the potential application is still limited due to its volumetric instability, relative high working voltage and low 1st cycle efficiency. In this thesis, strategies to alleviate these issues in iron oxide are addressed, such as morphology design, elemental modification and lithium addition. 1D rod-like morphology of iron oxide is firstly investigated as one of the optimized structure to overcome volumetric instability. It is seen that tuning the size of the nanorod led to optimal electrochemical performance, which is due to better structural retaining ability of the particles. It was seen that intermediate sized nanorod showed ~1000mAh g-1 capacity at the end of 50 cycles which is more than powder iron oxide. Elemental modification of iron oxide has also proven to be an effective strategy to lower the reaction voltage of hematite. Among several of tested material, Mg and Ti modified sample has shown the greatest potential also on enhancing the capacity at higher current density region. A capacity of 556 mAh g-1 at a delithiation current rate of 3C is achieved for Mg modified nanorod, which is five times higher than for pure hematite. Further synthesis of iron oxide microsphere, nanosphere and chunky-like particles showed has shown an unexpected high reversible capacity of ~800mAh g-1, which is not fully understood up to date. However, it can be inferred from these studies that in addition to particle morphology, there are other intrinsic factors that dominate the electrochemical behavior of iron oxide. The last section presents a lithium addition strategy that successfully forms a pre-lithiated form of iron oxide that has proven to increase the 1st cycle efficiency of iron oxide material from ~68% to ~80%. Doctor of Philosophy (IGS)
- Published
- 2020
25. The Bcr-Abl inhibitor GNF-7 inhibits necroptosis and ameliorates acute kidney injury by targeting RIPK1 and RIPK3 kinases
- Author
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Chunlin Zhuang, Ye-xiong Tan, Jianqiang Yu, Longmiao Hu, Shen-nan Shi, Xiaofei Chen, Siriporn Jitkaew, Xia Qin, Xiufeng Pang, Zhenyu Cai, Hong-yang Wang, and Wen Zhang
- Subjects
0301 basic medicine ,Male ,Programmed cell death ,Necroptosis ,Fusion Proteins, bcr-abl ,Antineoplastic Agents ,Apoptosis ,Pyrimidinones ,Biochemistry ,03 medical and health sciences ,RIPK1 ,0302 clinical medicine ,Cell Line, Tumor ,Medicine ,Animals ,Humans ,Protein Kinase Inhibitors ,Cells, Cultured ,Pharmacology ,Cisplatin ,Molecular Structure ,business.industry ,Kinase ,Acute kidney injury ,U937 Cells ,Acute Kidney Injury ,medicine.disease ,Bridged Bicyclo Compounds, Heterocyclic ,Mice, Inbred C57BL ,030104 developmental biology ,030220 oncology & carcinogenesis ,Receptor-Interacting Protein Serine-Threonine Kinases ,Cancer research ,business ,Reperfusion injury ,HT29 Cells ,medicine.drug - Abstract
Necroptosis is a form of programmed, caspase-independent cell death that is involved in various pathologic disorders such as ischemia/reperfusion injury, acute kidney injury and inflammatory bowel diseases. Identification of necroptosis inhibitors has great therapeutic potential for the treatment of necroptosis-associated diseases. In this study, we identified that the Bcr-Abl inhibitor GNF-7 was a potent inhibitor of necroptosis. GNF-7 inhibited necroptosis in both human and mouse cells, while not protecting cells from apoptosis. Drug affinity responsive target stability assay (DARTS) demonstrated that it binded with RIPK1 and RIPK3. GNF-7 inhibited RIPK1 and RIPK3 kinase activities and thus disrupted RIPK1-RIPK3 necrosome complex formation. In vivo, GNF-7 ameliorated both cisplatin- and ischemia/reperfusion-induced AKI. Orally administration of GNF-7 attenuated renal cell necrosis and reduced pro-inflammatory responses in mouse models of AKI. Taken together, our study shows that GNF-7 is a novel necroptosis inhibitor and has great potential for the treatment of acute renal inflammatory disorders by targeting both RIPK1 and RIPK3 kinases.
- Published
- 2020
26. Additional file 1 of Urinary activated leukocyte cell adhesion molecule as a novel biomarker of lupus nephritis histology
- Author
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Huihua Ding, Lin, Cheng, Jingyi Cai, Guo, Qiang, Dai, Min, Mohan, Chandra, and Shen, Nan
- Abstract
Additional file 1 : Supplemental Table 1. Correlation analysis of ALCAM and patients’ characteristics.
- Published
- 2020
- Full Text
- View/download PDF
27. A single-nucleotide polymorphism (rs1805087) in the methionine synthase (METH) gene increases the risk of prostate cancer
- Author
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Shen Nan, Jilei Tang, Kewei Ren, and Xiaosong Zhang
- Subjects
0301 basic medicine ,Oncology ,Male ,Aging ,medicine.medical_specialty ,Single-nucleotide polymorphism ,5-Methyltetrahydrofolate-Homocysteine S-Methyltransferase ,Polymorphism, Single Nucleotide ,Risk Assessment ,susceptibility ,polymorphism ,03 medical and health sciences ,chemistry.chemical_compound ,Prostate cancer ,0302 clinical medicine ,Risk Factors ,Internal medicine ,Genotype ,medicine ,Biomarkers, Tumor ,Humans ,Genetic Predisposition to Disease ,Methionine synthase ,Genotyping ,Genetic Association Studies ,methionine synthase ,biology ,business.industry ,Prostatic Neoplasms ,Cell Biology ,Odds ratio ,Meth ,medicine.disease ,prostate cancer ,Confidence interval ,meta-analysis ,030104 developmental biology ,chemistry ,030220 oncology & carcinogenesis ,Case-Control Studies ,biology.protein ,business ,Research Paper - Abstract
Methionine synthase (METH, i.e., MTR) is a key enzyme in the folate pathway, which plays a critical role in the synthesis, repair, and methylation of DNA. The association between METH gene polymorphisms and prostate cancer susceptibility remains ambiguous. Thus, we performed an updated meta-analysis of METH single-nucleotide polymorphism rs1805087 involving 12 independent case-control studies comprising 9986 prostate cancer patients and 40134 controls. The odds ratio and 95% confidence intervals were applied to evaluate the relation of this single-nucleotide polymorphism with prostate cancer. Statistical analysis was performed in STATA 11.0. A significant association was found between rs1805087 and increased prostate cancer risk, overall and with Hardy-Weinberg equilibrium. In subgroup analyses (based on ethnicity, source of control, genotyping methods, or publication status), similar associations were observed (e.g., genotype GA vs. AA: odds ratio 1.19, 95% confidence interval 1.01-1.40 among whites; G allele vs. A allele: odds ratio 1.14, 95% confidence interval 1.02-1.28 among hospital-based controls). Thus, the common polymorphism (rs1805087) of METH may be associated with increased prostate cancer risk. Further studies with a larger sample size and detailed gene-environment interactions should be conducted to identify the role of METH polymorphisms in prostate cancer susceptibility.
- Published
- 2018
28. Periodic Mechanical Stress Stimulates Cav-1-Dependent IGF-1R Mitogenic Signals in Rat Chondrocytes Through ERK1/2
- Author
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Jilei Tang, Shen Nan, Luming Nong, Huiqing Sun, Yanqing Gu, Jiang Xuefeng, and Kewei Ren
- Subjects
0301 basic medicine ,MAPK/ERK pathway ,Linsitinib ,Physiology ,Caveolin 1 ,lcsh:Physiology ,Chondrocyte ,Receptor, IGF Type 1 ,Rats, Sprague-Dawley ,lcsh:Biochemistry ,Small hairpin RNA ,03 medical and health sciences ,chemistry.chemical_compound ,Chondrocytes ,Western blot ,Chondrocyte proliferation ,medicine ,Animals ,lcsh:QD415-436 ,Phosphorylation ,RNA, Small Interfering ,Receptor ,Cells, Cultured ,Cell Proliferation ,Mitogen-Activated Protein Kinase 1 ,Mitogen-Activated Protein Kinase 3 ,lcsh:QP1-981 ,medicine.diagnostic_test ,Kinase ,beta-Cyclodextrins ,Imidazoles ,Periodic mechanical stress ,Rats ,Cell biology ,030104 developmental biology ,medicine.anatomical_structure ,chemistry ,Pyrazines ,RNA Interference ,Stress, Mechanical ,IGF-1R ,Non-integrin mechanosensors ,Cav-1 - Abstract
Background/Aims: The biological effects of periodic mechanical stress on the mitogenesis of chondrocytes have been studied extensively over the past few years. However, the mechanisms underlying the ability of chondrocytes to sense and respond to mechanical stimuli remain to be determined. In the current study, we analyzed the mechanisms by which periodic mechanical stress is translated into biochemical signals and verified the key role of non-integrin mechanosensors including Caveolin-1 (Cav-1), and insulin-like growth factor-1 receptor (IGF-1R) in chondrocyte proliferation. Methods: Two steps were undertaken in the experiment. In the first step, the cells were maintained under static conditions or periodic mechanical stress for 0 h and 1 h prior to Western blot analysis. In the second step, the cells were pretreated with short hairpin RNA (shRNA) targeted to Cav-1 or IGF-1R or control scrambled shRNA. Moreover, they were pretreated with their selective inhibitors methyl β-cyclodextrin (MCD) or Linsitinib (OSI-906). They were maintained under static conditions or periodic mechanical stress for 1 h prior to Western blot analysis, and for 3 days, 8 h per day, prior to direct cell counting and CCK-8 assay, respectively. Results: Periodic mechanical stress significantly induced sustained phosphorylation of Cav-1 at Tyr14 and IGF-1R at Tyr1135/1136. Proliferation was inhibited by pretreatment with Cav-1 inhibitor MCD and by shRNA targeted to Cav-1 in chondrocytes in response to periodic mechanical stress. Meantime, MCD and shRNA targeted to Cav-1 also attenuated IGF-1R, and extracellular signal-regulated kinase (ERK)1/2 activation. In addition, inhibiting IGF-1R activity by Linsitinib and shRNA targeted to IGF-1R abrogated chondrocyte proliferation and phosphorylation level of ERK1/2 subjected to periodic mechanical stress, while the phosphorylation site of Cav-1 was not affected. Conclusion: These findings collectively suggested that periodic mechanical stress promoted chondrocyte proliferation through Cav-1-IGF-1R-ERK1/2.
- Published
- 2018
29. The multitargeted kinase inhibitor KW-2449 ameliorates cisplatin-induced nephrotoxicity by targeting RIPK1-mediated necroptosis
- Author
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Hongyang Wang, Gang Chen, Chunlin Zhuang, Xiaofei Chen, Jianqiang Yu, Wenqing Ren, Chunhua Rui, Xia Qin, Shen-nan Shi, and Zhenyu Cai
- Subjects
Male ,0301 basic medicine ,Indazoles ,Cell Survival ,Necroptosis ,Antineoplastic Agents ,Biochemistry ,Piperazines ,Nephrotoxicity ,Kidney Tubules, Proximal ,Mice ,03 medical and health sciences ,RIPK1 ,Drug Delivery Systems ,0302 clinical medicine ,medicine ,Animals ,Humans ,Kinase activity ,Protein Kinase Inhibitors ,Cells, Cultured ,Pharmacology ,Cisplatin ,Dose-Response Relationship, Drug ,Chemistry ,Kinase ,Mice, Inbred C57BL ,030104 developmental biology ,Apoptosis ,Receptor-Interacting Protein Serine-Threonine Kinases ,030220 oncology & carcinogenesis ,Cancer cell ,Cancer research ,HT29 Cells ,medicine.drug - Abstract
Cisplatin (cis-dichloro-diammine platinum, CDDP) is a well-known chemotherapeutic drug against a broad spectrum of human malignancies. However, the clinical utility of this effective chemotherapy agent is dose limited by its toxic side effects such as nephrotoxicity and ototoxicity. Necroptosis is a form of programmed necrotic cell death that is mediated by serine/threonine kinases, RIPK1 and RIPK3, together with MLKL. In this study, we identified that the multitargeted kinase inhibitor KW-2449 inhibited cisplatin-induced necroptosis, while potentiated cisplatin-induced apoptosis in cancer cells. Mechanistic studies indicated that KW-2449 directly inhibited RIPK1 kinase activity to block necroptosis. Oral administration of KW-2449 attenuated renal cell necrosis and reduced pro-inflammatory responses in mouse models of cisplatin-induced nephrotoxicity. Taken together, our study shows that KW-2449 is a novel necroptosis inhibitor by targeting RIPK1 kinase activity and has great clinic potential for the treatment of cisplatin-induced nephrotoxicity.
- Published
- 2021
30. Association between interleukin-21 gene rs6822844 polymorphism and rheumatoid arthritis susceptibility
- Author
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Shen Nan, Xiaolong Li, Luming Nong, Kewei Ren, and Jilei Tang
- Subjects
0301 basic medicine ,rheumatoid arthritis ,Male ,medicine.medical_specialty ,Biophysics ,Subgroup analysis ,Biochemistry ,Gastroenterology ,Interleukin-21 ,polymorphism ,Arthritis, Rheumatoid ,03 medical and health sciences ,0302 clinical medicine ,Internal medicine ,Genetic model ,Medicine ,Rheumatoid factor ,Humans ,Genetic Predisposition to Disease ,Molecular Biology ,Research Articles ,030203 arthritis & rheumatology ,Polymorphism, Genetic ,Models, Genetic ,business.industry ,Interleukins ,Interleukin ,Cell Biology ,Publication bias ,Odds ratio ,medicine.disease ,Confidence interval ,030104 developmental biology ,Rheumatoid arthritis ,Female ,business ,Research Article - Abstract
Controversial results concerning the association between a polymorphism rs6822844 in the interleukin (IL) 21 (IL-21) gene and rheumatoid arthritis (RA) have existed. A meta-analysis to confirm above relationships is necessary to be performed immediately. We conducted a search in the PubMed database, covering all papers published up to 20 October 2018. Overall, six case–control studies with 3244 cases and 3431 healthy controls were included. Odds ratios (ORs) and 95% confidence intervals (CIs) were used to assess the strength of this association. Publication bias was assessed with both Egger’s and Begg’s tests. After calculation, we found that IL-21 rs6822844 polymorphism could decrease RA risk in overall genetic models (allelic contrast: OR = 0.77, 95% CI = 0.62–0.97, P=0.024; TG versus GG: OR = 0.68, 95% CI = 0.50–0.92, P=0.013, and dominant genetic model: OR = 0.72, 95% CI = 0.55–0.94, P=0.016). Similarly, stratified analysis by race, source of control, significantly decreased association was found in Asians, Caucasians and hospital-based (HB) control source. Finally, in the subgroup analysis of rheumatoid factor (RF) and anti-citrullinated protein antibody (ACPA) status, poorly decreased relationship was detected between IL-21 rs6822844 polymorphism and RF negative and ACPA positive RA risk, respectively. No obvious evidence of publication bias was detected in overall analysis. In summary, our study indicated that IL-21 rs6822844 polymorphism was significantly associated with decreased RA susceptibility.
- Published
- 2019
31. Hsa-mir-210 as a novel signature predicts survival in lung squamous cell carcinoma using bioinformatics analysis
- Author
-
Yu Liu, Yu Chen, Shu Xia, Lingling Li, and Shen-Nan Wang
- Subjects
Regulation of gene expression ,medicine.anatomical_structure ,Cell growth ,microRNA ,Cell ,VEGF Signaling Pathway ,medicine ,Cancer research ,Biology ,Lung cancer ,medicine.disease ,Survival analysis ,Metastasis - Abstract
In recent years, more and more studies have shown that the expression of miRNAs is closely related to the occurrence of tumors and plays an irreplaceable role in the development and metastasis of tumors. The research was focused on lung squamous cell carcinoma. The data information is downloaded from the TCGA database and analyzed for variance, which is then verified in the GEO database. Then differential expression of miRNAs was found and survival analysis was performed, through the cut – off standard(PAuthor SummaryMicroRNAs are single-stranded small molecular RNA that participate in the regulation of various biological functions through indirect regulation of gene expression, and have been reported to play an important role in the occurrence, development, invasion and metastasis of tumors. In recent years, the research on miRNAs has become increasingly hot, and the role of miRNAs in tumor has been proved more and more. The subjects of this study were squamous cell carcinoma in lung cancer with relatively few studies on miRNAs. Through high-throughput data analysis, miRNAs with differential expression between lung squamous cell carcinoma tissues and normal tissues were found. These differentially expressed miRNAs provide a new direction for the early diagnosis of patients. Then, survival analysis was conducted to find the miRNAs significantly correlated with the total survival time of patients, and multi-factor analysis was conducted to exclude the influence of other clinical factors, and independent risk factors (miRNAs) affecting the survival of patients were determined, so as to provide new targets for the treatment and survival prediction of patients.
- Published
- 2019
32. Additional file 4: of Interferon-α exacerbates neuropsychiatric phenotypes in lupus-prone mice
- Author
-
Zeng, Jing, Xinyu Meng, Zhou, Ping, Zhihua Yin, Qinglian Xie, Zou, Hong, Shen, Nan, Zhizhong Ye, and Yuanjia Tang
- Abstract
Figure S4. Effect of IFN-α on sociability in NZB/NZW F1 mice, as assessed in the three-chamber social interaction test. (a) Total distance travelled in all of the three chambers. (b) Percentage of distance travelled in the two chambers. Percentage of time spent (c) and distance travelled (d) around the two cages. Number of animals per group =10. *P
- Published
- 2019
- Full Text
- View/download PDF
33. Dibujo y diseño digital aplicado a la fabricación de joyería
- Author
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Shen, Nan, Caballero Rodríguez, Francisco, and Departamento de Dibujo
- Subjects
laser cutting ,corte láser ,dibujo digital ,joyería ,vector design ,jewelery ,diseño vectorial ,digital drawing - Abstract
La principal idea para este proyecto proviene de la necesidad de introducir un vector de innovación en el diseño y fabricación de joyería artesanal. Las inspiración surge en las formas naturales de las verduras y frutas que son esenciales en nuestras vidas. El diseño de la joyería mediante el dibujo y la extracción de las secciones transversales de las frutas y verduras, se materializa en la creación de prototipos en metacrilato elaborados mediante fabricación digital. Se explora principalmente las diferentes posibilidades de collares, pendientes y brazaletes. El uso de dibujo digital, diseño vectorial, modelos 3D y otros métodos digitales para lograr llevar a cabo la mayoría de los proyectos. La conceptualización, desarrollo y uso de las tecnologías digitales, combinada con la tecnología de corte por láser y el material de metacrilato nos sirven para crear y fabricar prototipos de joyería con estética innovadora y moderna., The main idea for this project comes from the need to introduce a vector of innovation in the design and manufacture of artisan jewelry. Inspiration arises in the natural forms of vegetables and fruits that are essential in our lives. The design of the jewelery by means of the drawing and the extraction of the transversal sections of the fruits and vegetables, materializes in the creation of prototypes in methacrylate elaborated by means of digital manufacture. It explores mainly the different possibilities of necklaces, earrings and bracelets. The use of digital drawing, vector design, 3D models and other digital methods to achieve most of the projects. The conceptualization, development and use of digital technologies, combined with laser cutting technology and methacrylate material help us to create and manufacture jewelry prototypes with innovative and modern aesthetics.
- Published
- 2019
- Full Text
- View/download PDF
34. Additional file 2: of Interferon-α exacerbates neuropsychiatric phenotypes in lupus-prone mice
- Author
-
Zeng, Jing, Xinyu Meng, Zhou, Ping, Zhihua Yin, Qinglian Xie, Zou, Hong, Shen, Nan, Zhizhong Ye, and Yuanjia Tang
- Abstract
Figure S2. The expression levels of IFN-α, IL-6 and CXCL10 in the brain. Number of animals per group =5. *P
- Published
- 2019
- Full Text
- View/download PDF
35. Additional file 1: of Interferon-α exacerbates neuropsychiatric phenotypes in lupus-prone mice
- Author
-
Zeng, Jing, Xinyu Meng, Zhou, Ping, Zhihua Yin, Qinglian Xie, Zou, Hong, Shen, Nan, Zhizhong Ye, and Yuanjia Tang
- Subjects
urogenital system ,immune system diseases ,skin and connective tissue diseases ,urologic and male genital diseases - Abstract
Figure S1. Effect of IFN-α on lupus nephritis in NZB/NZW F1 mice. (a) Proteinuria, as quantified by 24-h urinary protein. (b) H&E- or PAS-stained kidney sections. Number of animals per group =5. *P
- Published
- 2019
- Full Text
- View/download PDF
36. Additional file 3: of Interferon-α exacerbates neuropsychiatric phenotypes in lupus-prone mice
- Author
-
Zeng, Jing, Xinyu Meng, Zhou, Ping, Zhihua Yin, Qinglian Xie, Zou, Hong, Shen, Nan, Zhizhong Ye, and Yuanjia Tang
- Subjects
psychological phenomena and processes - Abstract
Figure S3. Effect of IFN-α on anxiety-like phenotypes in NZB/NZW F1 mice, as assessed by the elevated plus-maze test. (a) Total distance travelled in the elevated plus-maze. (b) Percentage of distance travelled in the open arm of the elevated plus-maze. (c) Total number of entries into the arms of the elevated plus-maze. (d) Percentage of entries into the open arms. (e) Total distance travelled in the open field arena. (f) Percentage of distance travelled in the margin area in the open field test. (g) Number of entries into the centre of the open field. Number of animals per group =10. *P
- Published
- 2019
- Full Text
- View/download PDF
37. MOESM3 of Prognostic implications of Aquaporin 9 expression in clear cell renal cell carcinoma
- Author
-
Xu, Wen-Hao, Shen-Nan Shi, Xu, Yue, Wang, Jun, Wang, Hong-Kai, Cao, Da-Long, Guo-Hai Shi, Qu, Yuan-Yuan, Zhang, Hai-Liang, and Ding-Wei Ye
- Abstract
Additional file 3: Table S1. Clinicopathological characteristics baseline in relation to AQP9 expression status in TCGA cohort. Table S2. Univariate Cox logistic regression analysis of PFS in TCGA and FUSCC cohort (PFS: progression-free survival; TCGA: the Cancer Genome Atlas; FUSCC: Fudan university shanghai cancer center). Table S3. Univariate Cox logistic regression analysis of OS in TCGA and FUSCC cohort (OS: overall survival; TCGA: the Cancer Genome Atlas; FUSCC: Fudan university shanghai cancer center). Table S4. Correlation analysis between AQP9 and immune cell infiltrations in ccRCC samples using TIMER.
- Published
- 2019
- Full Text
- View/download PDF
38. Additional file 5: of Interferon-α exacerbates neuropsychiatric phenotypes in lupus-prone mice
- Author
-
Zeng, Jing, Xinyu Meng, Zhou, Ping, Zhihua Yin, Qinglian Xie, Zou, Hong, Shen, Nan, Zhizhong Ye, and Yuanjia Tang
- Abstract
Figure S5. Effect of IFN-α on sociability in NZB/NZW F1 mice, as assessed by the novelty Y-maze task. (a) Total distance travelled. (b) Total number of arm entries. (c) Distance travelled in the arms per entry. Number of animals per group =10. *P
- Published
- 2019
- Full Text
- View/download PDF
39. Periodic Mechanical Stress Activates PKCδ-Dependent EGFR Mitogenic Signals in Rat Chondrocytes via PI3K-Akt and ERK1/2
- Author
-
Jiang Xuefeng, Nanwei Xu, Peng He, Luming Nong, Huiqing Sun, Gongming Gao, Dong Zhou, Shen Nan, and Kewei Ren
- Subjects
0301 basic medicine ,Male ,Periodicity ,Physiology ,Proto-Oncogene Proteins c-akt ,Mitogen-Activated Protein Kinase 3 ,EGFR ,Primary Cell Culture ,Cell Culture Techniques ,Mechanotransduction, Cellular ,lcsh:Physiology ,Rats, Sprague-Dawley ,lcsh:Biochemistry ,03 medical and health sciences ,Phosphatidylinositol 3-Kinases ,Chondrocytes ,Chondrocyte proliferation ,Animals ,lcsh:QD415-436 ,Mechanotransduction ,Enzyme Inhibitors ,RNA, Small Interfering ,Protein kinase B ,PI3K/AKT/mTOR pathway ,Infusion Pumps ,Cell Proliferation ,Phosphoinositide-3 Kinase Inhibitors ,Regulation of gene expression ,Mitogen-Activated Protein Kinase 1 ,PKCδ ,lcsh:QP1-981 ,Cell growth ,Chemistry ,PI3K-Akt ,Periodic mechanical stress ,Cell biology ,Rats ,ErbB Receptors ,Protein Kinase C-delta ,030104 developmental biology ,Gene Expression Regulation ,Cell culture ,Female ,Stress, Mechanical - Abstract
Background/Aims: The present study aimed to analyze the mechanisms by which periodic mechanical stress is translated into biochemical signals, and to verify the important role of signaling molecules including phosphatidylinositol-3-kinase (PI3K)-Akt, protein kinase C (PKC), and epidermal growth factor receptor (EGFR) in chondrocyte proliferation. The effects of periodic mechanical stress on the mitogenesis of chondrocytes have been studied extensively in recent years. However, the mechanisms underlying the ability of chondrocytes to sense and respond to periodic mechanical stress need further investigation. Methods: Two steps were undertaken in the experiment. In the first step, the cells were pretreated with shRNA targeted to Akt or EGFR or PKCδ or control scrambled shRNA. Moreover, they were pretreated with LY294002, GF109203X, Gö6976, rottlerin, and AG1478. They were maintained under static conditions or periodic mechanical stress for 3 days, 8 h per day, prior to direct cell counting and CCK-8 assay, respectively. In the second step, the cells were pretreated with shRNA targeted to Akt or EGFR or PKCδ or control scrambled shRNA. Moreover, they were pretreated with LY294002, AG1478, and rottlerin. They were maintained under static conditions or periodic mechanical stress for 1 h prior to Western blot analysis. Results: Proliferation was inhibited by pretreatment with PKC or PKCδ inhibitor GF109203X or rottlerin and by short hairpin RNA (shRNA) targeted to PKCδ, but not by PKCα inhibitor Gö6976 in chondrocytes in response to periodic mechanical stress. Meantime, rottlerin and shRNA targeted to PKCδ also attenuated EGFR, Akt, and ERK1/2 activation. Furthermore, inhibiting EGFR activity by AG1478 and shRNA targeted to EGFR abrogated chondrocyte proliferation and phosphorylation levels of Akt and extracellular signal-regulated kinase (ERK)1/2 subjected to periodic mechanical stress, while the phosphorylation site of PKCδ was not affected. In addition, pretreatment with the PI3K-Akt-selective inhibitor LY294002 and shRNA targeted to Akt reduced periodic mechanical stress-induced chondrocyte proliferation and phosphorylation of ERK1/2, while the phosphorylation levels of EGFR and PKCδ were not inhibited. Conclusion: These findings suggested that periodic mechanical stress promoted chondrocyte proliferation through PKCδ-EGFR-PI3K-Akt-ERK1/2. They provide a stronger viewpoint for further investigations into chondrocyte mechanobiology under periodic mechanical stress and the ways to improve the quality of tissue-engineered cartilage.
- Published
- 2016
40. Pre-lithiated Li x Mn 2 O 4 : A new approach to mitigate the irreversible capacity loss in negative electrodes for Li-ion battery
- Author
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Shen Nan, Srinivasan Madhavi, Vanchiappan Aravindan, and Miriam Keppeler
- Subjects
Battery (electricity) ,Materials science ,General Chemical Engineering ,Spinel ,Nanotechnology ,02 engineering and technology ,Electrolyte ,engineering.material ,010402 general chemistry ,021001 nanoscience & nanotechnology ,01 natural sciences ,Cathode ,Lithium-ion battery ,0104 chemical sciences ,Anode ,law.invention ,Chemical engineering ,law ,Electrode ,Electrochemistry ,engineering ,0210 nano-technology ,Capacity loss - Abstract
Hot topic of research today is to overcome the irreversible capacity loss (ICL) in high capacity anodes used in Li-ion battery. Several attempts have been exploited to overcome the ICL issue, but all of them involved time consuming and inevitable electrolyte decomposition. Here, we attempted to utilize the octahedral site of spinel cathode ( ex. LiMn 2 O 4 ) for the compensation of ICL when paired with conversion type anode, α-Fe 2 O 3 nanorods. The performance of Li 1.26 Mn 2 O 4 /α-Fe 2 O 3 nanorods cell is compared with similar configurations fabricated without any electrode treatment and α-Fe 2 O 3 treated one. Amongst, LiMn 2 O 4 treated assembly showed promising results as compared with anode treated configuration.
- Published
- 2016
41. Effect of Different Heat Treatment Temperatures on the Chemical Composition and Structure of Chinese Fir Wood
- Author
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Shi-Chao Cheng, An-Min Huang, Qiuhui Zhang, and Shen-Nan Wang
- Subjects
0106 biological sciences ,Environmental Engineering ,Infrared ,lcsh:Biotechnology ,Chemical composition ,2D-IR spectra ,Bioengineering ,02 engineering and technology ,01 natural sciences ,Heat treatment ,chemistry.chemical_compound ,010608 biotechnology ,lcsh:TP248.13-248.65 ,Organic chemistry ,Lignin ,Molecule ,Hemicellulose ,Cellulose ,FT-IR spectra ,Waste Management and Disposal ,021001 nanoscience & nanotechnology ,Chinese Fir wood ,chemistry ,Pyranose ,Degradation (geology) ,0210 nano-technology - Abstract
The properties of wood can be improved after heat-treatment. There have been many studies dealing with mechanical properties and chemical modifications of heat-treated wood. The purpose of this paper is to provide a new analysis method, to give better insights on the hemicelluloses, cellulose, and lignin contents of heat-treated wood by using Fourier transform infrared (FT-IR) and two-dimensional infrared (2D-IR) spectroscopies. The FT-IR spectra results showed progressive degradation in the carbonyl groups of the glucuronic acid units and degradation of the pyranose of hemicelluloses. These changes were measured as the percentage decrease of crystalline cellulose and the loss of C=O and C=C groups linking together the aromatic skeleton of lignin. The 2D-IR spectra showed the appearance of 5 × 5 peak clusters in the 1000 to 1200 cm-1 region, which could account for the hemicellulose degradation. In addition, changes in the degree of sensitivity at 1627 and 1509 cm-1 coincided with cross-linking reactions among the aromatic units in the lignin molecules.
- Published
- 2016
42. Comprehensive recycling of zinc and iron from smelting waste containing zinc ferrite by oriented transformation with SO2
- Author
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Shen-Nan Zhuo, Yong Ke, Xiaobo Min, Yanchun Li, Hui Liu, and Bing Peng
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Renewable Energy, Sustainability and the Environment ,020209 energy ,Strategy and Management ,05 social sciences ,Metallurgy ,Oxide ,Magnetic separation ,chemistry.chemical_element ,02 engineering and technology ,Zinc ,Raw material ,Industrial and Manufacturing Engineering ,chemistry.chemical_compound ,Zinc ferrite ,chemistry ,Smelting ,050501 criminology ,0202 electrical engineering, electronic engineering, information engineering ,medicine ,Ferric ,Leaching (metallurgy) ,0505 law ,General Environmental Science ,medicine.drug - Abstract
The comprehensive recycling of zinc and iron from smelting waste containing zinc ferrite (SWCZF) remains a challenge. A study is to be the first proposed that hazardous SWCZF is directionally converted with SO2 for simultaneous recycling of zinc and iron. In the first step, zinc and iron phases in SWCZF were transformed into zinc sulfate and ferric oxide via oriented transformation with SO2. The decomposition rate of zinc ferrite and the yield of zinc sulfate were 94% and 95%, respectively. In the second step, zinc and iron in SWCZF were directionally enriched to obtain zinc sulfate solution and iron concentrate via water leaching-magnetic separation. The leaching rate of zinc from water leaching was 93.2% and the iron recovery from magnetic separation was 83.8%. The zinc sulfate solution can be directly returned to the traditional hydrometallurgical process to produce electrolytic zinc or be used to produce zinc sulfate with no generation of iron residues. The iron concentrate can be used as a raw material for iron making. Meanwhile, a clean slag was produced and can be safe for storage or potentially used as construction materials. Therefore, the deep reclamation, reducing quantity and harmlessness of SWCZF were realized via this cleaner technical route.
- Published
- 2020
43. Periodic Mechanical Stress Stimulates GIT1-Dependent Mitogenic Signals in Rat Chondrocytes Through ERK1/2 Activity
- Author
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Jilei Tang, Yanqing Gu, Luming Nong, Jiang Xuefeng, Kewei Ren, Huiqing Sun, and Shen Nan
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0301 basic medicine ,MAPK/ERK pathway ,Physiology ,Integrin ,Integrin β1 ,Cell Cycle Proteins ,lcsh:Physiology ,Chondrocyte ,lcsh:Biochemistry ,Small hairpin RNA ,Focal adhesion ,Rats, Sprague-Dawley ,03 medical and health sciences ,Chondrocytes ,Chondrocyte proliferation ,medicine ,Animals ,lcsh:QD415-436 ,Phosphorylation ,RNA, Small Interfering ,Cells, Cultured ,Cell Proliferation ,Mitogen-Activated Protein Kinase 1 ,Mitogen-Activated Protein Kinase 3 ,FAK ,lcsh:QP1-981 ,biology ,Kinase ,Chemistry ,Integrin beta1 ,Periodic mechanical stress ,Phosphoproteins ,Cell biology ,Rats ,030104 developmental biology ,medicine.anatomical_structure ,src-Family Kinases ,Focal Adhesion Kinase 1 ,biology.protein ,Mutagenesis, Site-Directed ,RNA Interference ,Stress, Mechanical ,GIT1 ,Src ,Proto-oncogene tyrosine-protein kinase Src - Abstract
Background/Aims: The mitogenic effects of periodic mechanical stress on chondrocytes have been studied extensively, but the mechanisms whereby chondrocytes sense and respond to mechanical stimuli remain to be determined. We explored the question and verified the key role of G protein coupled receptor kinase interacting protein 1 (GIT1) signaling in periodic mechanical stress-induced chondrocyte proliferation. Methods: Two steps were undertaken in the experiment. In the first step, the cells were maintained under non-pressure conditions or periodic mechanical stress for 1 h prior to Western blot analysis. In the second step, the cells were pretreated with short hairpin RNA (shRNA) targeted to GIT1 or Src or control scrambled shRNA, or transfected with GIT1 wild-type or GIT1 mutant Y321F, or focal adhesion kinase (FAK) wild-type or FAK mutants Y397F or Y576F/Y577, respectively. Moreover, the cells were pretreated with blocking antibody against integrin β1 or PP2. Then the cells were maintained under non-pressure conditions or periodic mechanical stress for 1 h prior to Western blot analysis, and for 3 days, 8 h per day, prior to direct cell counting and CCK-8 assay, respectively. Results: Periodic mechanical stress significantly induced sustained phosphorylation of GIT1 at Tyr321. Reduction of GIT1 with shRNA targeted to GIT1 and GIT1 mutant Y321F inhibited periodic mechanical stress-promoted chondrocyte proliferation, accompanied by attenuated extracellular signal-regulated kinase (ERK)1/2 and FAK phosphorylation at Tyr576/577. However, activation of Src and FAK-Tyr397 was not prevented upon GIT1 suppression. Furthermore, pretreatment with blocking antibody against integrin β1, Src-selective inhibitor, PP2, and shRNA targeted to Src blocked GIT1 activation under periodic mechanical stress. In addition, GIT1 phosphorylation at Tyr321 was not reduced upon pretreatment with FAK mutants Y397F or Y576F/Y577 under conditions of periodic mechanical stress. Conclusion: These findings collectively suggested that periodic mechanical stress promoted chondrocyte proliferation through at least two separate pathways, integrin β1-Src-GIT1-FAK(Tyr576/577)-ERK1/2, and the other parallel GIT1-independent integrin β1-FAK(Tyr397)-ERK1/2.
- Published
- 2018
44. The ecological value of local knowledge
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王志芳 Wang Zhifang and 沈楠 Shen Nan
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Ecology ,Natural resource economics ,Value (mathematics) ,Ecology, Evolution, Behavior and Systematics ,Mathematics - Published
- 2018
45. Distinction of four Dalbergia species by FTIR, 2nd derivative IR, and 2D-IR spectroscopy of their ethanol-benzene extractives
- Author
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An-Min Huang, Qun Zhou, Shen-Nan Wang, and Fang-Da Zhang
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Ethanol ,biology ,010405 organic chemistry ,010401 analytical chemistry ,Analytical chemistry ,Infrared spectroscopy ,Industrial chemistry ,biology.organism_classification ,01 natural sciences ,0104 chemical sciences ,Biomaterials ,chemistry.chemical_compound ,Dalbergia ,chemistry ,Fourier transform infrared spectroscopy ,Gas chromatography–mass spectrometry ,Benzene ,Derivative (chemistry) ,Nuclear chemistry - Abstract
Four common species of Dalbergia genus (D. bariensis, D. oliveri, D. cochinchinensis, and D. retusa), which are traded as “Rosewood” or “Hongmu” commonly throughout East and Southeast Asia, were extracted with ethanol-benzene and the extractives were analyzed by means of three IR spectroscopic methods aiming at their chemotaxonomic differentiation. Conventional FTIR and 2nd derivative IR (SD-IR) showed defined spectral ranges, where the differences are pronounced. Two-dimensional correlation infrared (2D-IR) spectroscopy revealed significant auto-peaks suitable for reliable differentiation of the four Dalbergia species. The gas chromatography-mass spectrometry (GC-MS) evaluation of the extractives was also useful. It can be concluded that the analysis of the extractives is the best chemotaxonomic approach for identification of anatomically similar wood species.
- Published
- 2015
46. Structural characterization of steam-heat treated Tectona grandis wood analyzed by FT-IR and 2D-IR correlation spectroscopy
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Su-Qin Sun, Dan Li, An-Min Huang, Shen-Nan Wang, Ming-Yu Li, and Shi-Chao Cheng
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biology ,Chemistry ,Condensation ,technology, industry, and agriculture ,food and beverages ,Mineralogy ,General Chemistry ,biology.organism_classification ,complex mixtures ,Catalysis ,Characterization (materials science) ,Acetic acid ,chemistry.chemical_compound ,Tectona ,Degradation (geology) ,Fourier transform infrared spectroscopy ,Two-dimensional nuclear magnetic resonance spectroscopy ,Nuclear chemistry - Abstract
The properties of wood can be improved through steam-heat treatment. There are many studies about mechanical properties of steam-heat treated wood, but very few studies are on the aspects of chemical modifications. In this study, FT-IR spectra combined with SD-IR spectra, correlation coefficients and 2D-IR spectra are employed to analyze the chemical modifications of teak (Tectona grandis L.F.) wood during steam-heat treatment under treatment temperatures from 120 °C to 220 °C at intervals of 20 °C. Acetic acid, which is produced during steam-heat treatment, acts as a catalyst of condensation and degradation reactions of wood components. The changes of wood components are more and more intense with increasing the treatment temperature. The sensitivity of wood samples to thermal perturbation rises initially with increasing treatment temperature before falling back. The steam-heat treated wood under 180 °C is the most sensitive.
- Published
- 2015
47. Additional file 1: of T-bet+CD11c+ B cells are critical for antichromatin immunoglobulin G production in the development of lupus
- Author
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Liu, Ya, Shiyu Zhou, Qian, Jie, Wang, Yan, Yu, Xiang, Dai, Dai, Dai, Min, Lingling Wu, Zhuojun Liao, Zhixin Xue, Jiehua Wang, Goujun Hou, Jianyang Ma, Harley, John, Yuanjia Tang, and Shen, Nan
- Subjects
immune system diseases ,chemical and pharmacologic phenomena ,hemic and immune systems - Abstract
T-bet+ CD11c+ B cells are critical for antichromatin immunoglobulin G production in the development of lupus. Figure S1. The fraction of T-bet and CD11c positive population was increased in CD138+ plasma cells. Figure S2. Correlation between the percentage of T-bet+ CD11c+ CD19+ B cells and the titers of anti-ANA antibodies (A), anti-dsDNA antibodies (B) from 22 SLE patients. Figure S3. IFNÎł is required for T-bet+ CD11c+ B cell differentiation and activation. 5 Ă 107 splenocytes from Bm12 mice or B6 mice cells were injected intraperitoneally into B6 mice (n = 5). (PDF 361 kb)
- Published
- 2017
- Full Text
- View/download PDF
48. Walk score method-based evaluation of social service function of urban park green lands in Futian district, Shenzhen, China
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沈楠 Shen Nan and 吴健生 Wu Jiansheng
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Urban park ,Ecology ,Social work ,media_common.quotation_subject ,0211 other engineering and technologies ,Score method ,021107 urban & regional planning ,02 engineering and technology ,010501 environmental sciences ,01 natural sciences ,Geography ,Function (engineering) ,China ,Socioeconomics ,Ecology, Evolution, Behavior and Systematics ,0105 earth and related environmental sciences ,media_common - Published
- 2017
49. Three single nucleotide polymorphisms of TNFAIP3 gene increase the risk of rheumatoid arthritis
- Author
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Luming Nong, Kewei Ren, Yajun Lu, Jiang Xuefeng, Gongming Gao, Huiqing Sun, Yuan Ruan, and Shen Nan
- Subjects
0301 basic medicine ,rheumatoid arthritis ,medicine.medical_specialty ,Genotype ,Single-nucleotide polymorphism ,TNFAIP3 ,Polymorphism, Single Nucleotide ,Systemic autoimmune disease ,Arthritis, Rheumatoid ,03 medical and health sciences ,0302 clinical medicine ,single nucleotide polymorphism ,Internal medicine ,Medicine ,Humans ,Genetic Predisposition to Disease ,Synovial joints ,Tumor Necrosis Factor alpha-Induced Protein 3 ,030203 arthritis & rheumatology ,business.industry ,Odds ratio ,medicine.disease ,3. Good health ,Surgery ,meta-analysis ,030104 developmental biology ,Oncology ,Meta-analysis ,Rheumatoid arthritis ,TNFAIP3 Gene ,business ,Research Paper - Abstract
// Nan Shen 1, * , Yuan Ruan 2, *, # , Yajun Lu 3 , Xuefeng Jiang 4 , Huiqing Sun 4 , Gongming Gao 5 , Luming Nong 5 , Kewei Ren 4 1 Department of Clinical Pharmacy, The Affiliated Jiangyin Hospital of Southeast University Medical School, Jiangyin 214400, China 2 Department of Minimally Invasive Spine Center, Renji Orthopedics Hospital, Shantou 515065, China 3 Department of Orthopedics, Jiangyin No 3 People’s Hospital, Jiangyin 214433, China 4 Department of Orthopedics, The Affiliated Jiangyin Hospital of Southeast University Medical School, Jiangyin 214400, China 5 Department of Orthopedics, The Affiliated Changzhou No 2 Hospital of Nanjing Medical University, Changzhou 213003, China * These authors have contributed equally to this work # Co-first author Correspondence to: Luming Nong, email: luming_nong@sina.com Kewei Ren, email: rkwmedicine@tom.com Keywords: TNFAIP3, single nucleotide polymorphism, rheumatoid arthritis, meta-analysis Received: December 30, 2016 Accepted: January 25, 2017 Published: February 10, 2017 ABSTRACT Rheumatoid arthritis (RA) is a systemic autoimmune disease characterized by chronic destructive inflammation in synovial joints. To date, many studies explored the associations between tumor necrosis factor alpha inducible protein 3 (TNFAIP3) gene rs6920220, rs2230926, and rs5029937 polymorphisms and the risk of rheumatoid arthritis (RA), but with contradictory results. We therefore conducted a comprehensive meta-analysis to address the associations. We searched in the databases of PubMed and Embase. Pooled odds ratios (ORs) and 95% confidence intervals (CIs) were calculated by the Stata 11.0 software. A total of 21 case-control studies for these three single nucleotide polymorphisms (SNPs) were included in this meta-analysis. Meta-analysis indicated that TNFAIP3 gene rs6920220, rs2230926, and rs5029937 polymorphisms were associated with the increased risk of RA. Stratification analysis of ethnicity found that rs6920220 and rs5029937 polymorphisms increased the risk of RA among Caucasians, while rs2230926 polymorphism increased the risk of RA among Asians. In summary, this meta-analysis confirms that TNFAIP3 gene polymorphisms may play important roles in the pathogenesis of RA.
- Published
- 2016
50. Angiotensin II regulates the LARG/RhoA/MYPT1 axis in rat vascular smooth muscle in vitro
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Chia Ti Tsai, Shen-nan Chang, Yung-Zu Tseng, Fu-Tien Chiang, Wei-Chiao Chiu, Jyh-Ming Juang, and Cho-Kai Wu
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Male ,medicine.medical_specialty ,RHOA ,Vascular smooth muscle ,G protein ,Blotting, Western ,Primary Cell Culture ,Aorta, Thoracic ,Real-Time Polymerase Chain Reaction ,Muscle, Smooth, Vascular ,Rats, Sprague-Dawley ,Isometric Contraction ,Protein Phosphatase 1 ,Internal medicine ,medicine ,Animals ,Guanine Nucleotide Exchange Factors ,Pharmacology (medical) ,RNA, Small Interfering ,Rho-associated protein kinase ,Cells, Cultured ,Pharmacology ,Angiotensin II receptor type 1 ,biology ,Angiotensin II ,Protein phosphatase 1 ,General Medicine ,Rats ,Up-Regulation ,Losartan ,Endocrinology ,Gene Expression Regulation ,cardiovascular system ,biology.protein ,Original Article ,rhoA GTP-Binding Protein ,Rho Guanine Nucleotide Exchange Factors ,hormones, hormone substitutes, and hormone antagonists ,medicine.drug - Abstract
To identify a key protein that binds monomeric G protein RhoA and activates the RhoA/Rho kinase/MYPT1 axis in vascular smooth muscle cells (VSMCs) upon angiotensin II (Ang II) stimulation.Primary cultured VSMCs from Sprague-Dawley rats were transfected with siRNAs against leukemia-associated RhoGEF (LARG), and then treated with Ang II, losartan, PD123319, or Val(5)-Ang II. The target mRNA and protein levels were determined using qPCR and Western blot analysis, respectively. Rat aortic rings were isolated, and the isometric contraction was measured with a force transducer and recorder.Stimulation with Ang II (0.1 μmol/L) for 0.5 h significantly increased the level of LARG mRNA in VSMCs. At 3, 6, and 9 h after the treatment with Ang II (0.1 μmol/L) plus AT(2) antagonist PD123319 (1 μmol/L) or with AT(1) agonist Val(5)-Ang II (1 μmol/L), the LARG protein, RhoA activity, and phosphorylation level of myosin phosphatase target subunit 1 (MYPT1) in VSMCs were significantly increased. Knockdown of LARG with siRNA reduced these effects caused by AT(1) receptor activation. In rat aortic rings pretreated with LARG siRNA, Ang II-induced contraction was diminished.Ang II upregulates LARG gene expression and activates the LARG/RhoA/MYPT1 axis via AT(1), thereby maintaining vascular tone.
- Published
- 2012
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