291 results on '"Yanjun Xu"'
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2. On the Four Misfortunes to the Works of Beethoven
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Yanjun Xu
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Beethoven is renowned for his masterful compositions, but his personal life was rife with challenges that deeply affected his work. This paper examines the ups and downs of Beethoven's life, including his struggles with family, friendship, love, career, political demands, and general life challenges. The study analyzes the four major misfortunes that impacted Beethoven's life, leading to a sense of hopelessness before he created his most notable works. The paper explores how these misfortunes impacted Beethoven's world view and creative output. The study concludes that the artist's personal challenges, particularly negative experiences such as sorrows and pains, had a significant impact on his creativity. It is through these struggles that Beethoven created masterpieces that conveyed the humanity and reality of the world. This paper provides insights into Beethoven's life and offers a reference for future studies on the artist's personal experiences, particularly in his formative years.
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- 2023
3. Triphenylphosphonium (TPP)-Conjugated Quinolone Analogs Displayed Significantly Enhanced Fungicidal Activity Superior to Its Parent Molecule
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Qin, Jiayao Wang, Xuelian Liu, Fahong Yin, Yanjun Xu, Bin Fu, Jiaqi Li, and Zhaohai
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mitochondria-targeted ,quinolone analogs ,fungicidal activity - Abstract
Although 1-hydroxy-4-quinolone derivatives, such as 2-heptyl-4-hydroxyquinoline-N-oxide (HQNO), aurachin C, and floxacrine, have been reported as effective cytochrome bc1 complex inhibitors, the bioactivity of these products is not ideal, presumably due to their low bioavailability in tissues, particularly their poor solubility and low mitochondrial accumulation. In order to overcome the drawbacks of these compounds and develop their use as agricultural fungicides acting by cytochrome bc1 inhibition, in this study, three novel mitochondria-targeting quinolone analogs (mitoQNOs) were designed and synthesized by conjugating triphenylphosphonium (TPP) with quinolone. They exhibited greatly enhanced fungicidal activity compared to the parent molecule, especially mitoQNO11, which showed high antifungal activity against Phytophthora capsici and Sclerotinia sclerotiorum with EC50 values of 7.42 and 4.43 μmol/L, respectively. In addition, mitoQNO11 could inhibit the activity of the cytochrome bc1 complex of P. capsici in a dose-dependent manner and effectively depress its respiration and ATP production. The greatly decreased mitochondrial membrane potential and massively generated reactive oxygen species (ROS) strongly suggested that the inhibition of complex III led to the leakage of free electrons, which resulted in the damage of the pathogen cell structure. The results of this study indicated that TPP-conjugated QNOs might be used as agricultural fungicides by conjugating them with TPP.
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- 2023
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4. π ‐Extended BTD Derivatives: Synthesis, Photophysical Properties, and Applications in Biological Systems Imaging for Discriminating Living and Dead Cells
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Cong‐Cong Li, Jiaxin Cao, Lin Wang, Xingxiang Ji, Yanjun Xu, and Jian‐Yong Wang
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Organic Chemistry ,General Chemistry ,Biochemistry - Published
- 2023
5. Surface modification of CNTs to improve comprehensive properties of CNTs/Cu composites
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Yanjun Xu, Ting Zhou, Ming Lei, Xu Zhang, and Lijun Zhou
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Ceramics and Composites ,General Physics and Astronomy ,Surfaces, Coatings and Films - Published
- 2022
6. C-X-C Chemokine Receptor Type 4 (CXCR4) and Programmed Death-Ligand 1 (PD-L1) Expression are Prognostic Biomarkers for Papillary Thyroid Carcinoma
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Ting Ding, Qian Song, Yanjun Xu, and Qiya Liu
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endocrine system diseases ,Biomedical Engineering ,Medicine (miscellaneous) ,Bioengineering ,Biotechnology - Abstract
Chemokines and immunomodulatory factors involve in tumor development. Papillary thyroid carcinoma (PTC) is considered to start from dendritic cell infiltration and then produce immunomodulatory factors. In this study, CXCR4 and PD-L1 biomarkers were used to explore their prognostic role in PTC survival. Confocal microscopy detected the transfection efficiency in tumor cells. 42 PTC patients and thyroiditis patients (control) were enrolled to measure the expressions of CXCR4 and PD-L1. Multi-factor analysis analyzed the effect of combined CXCR4 and PD-L1 expression on ROC. The two groups had no differences in the baseline characteristics. CTXCR4 and PD-L1 level in PTC patients was significantly higher than control. CXCR4 was lowly expressed in thyroid cancer tissue and PD-L1 was highly expressed in serological samples. Compared with single measurement, the combined detection of CXCR4 and PD-L1 showed more ROC area. In conclusion, reduced CXCR4 and increased PD-L1 level is found in thyroid cancer and their level might be used as predictive markers for PTC to improve the curative effect.
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- 2022
7. Regulation of Intracellular Reactive Oxygen Species Levels after the Development of Phallus rubrovolvatus Rot Disease Due to Trichoderma koningii Mycoparasitism
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Meiling Lu, Tingchi Wen, Ming Guo, Qihua Li, Xingcan Peng, Yan Zhang, Zhenghua Lu, Jian Wang, Yanjun Xu, and Chao Zhang
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Microbiology (medical) ,edible fungi ,Trichoderma koningii ,mycoparasitism ,ROS level ,rot disease ,Plant Science ,Ecology, Evolution, Behavior and Systematics - Abstract
Phallus rubrovolvatus is a unique mushroom used for medicinal and dietary purposes in China. In recent years, however, the rot disease of P. rubrovolvatus has seriously affected its yield and quality, becoming an economically important threat. In this study, samples of symptomatic tissues were collected, isolated, and identified from five major P. rubrovolvatus production regions in Guizhou Province, China. Based on combined analyses of phylogenies (ITS and EF1-α), morphological characteristics and Koch’s postulates, Trichoderma koningiopsis and Trichoderma koningii were identified as the pathogenic fungal species. Among these, T. koningii exhibited stronger pathogenicity than the other strains; thus, T. koningii was used as the test strain in the follow-up experiments. Upon co-culturing T. koningii with P. rubrovolvatus, the hyphae of the two species were intertwined, and the color of the P. rubrovolvatus hyphae changed from white to red. Moreover, T. koningii hyphae were wrapped around P. rubrovolvatus hyphae, leading to their shortening and convolution and ultimately inhibiting their growth due to wrinkling; T. koningii penetrated the entire basidiocarp tissue of P. rubrovolvatus, causing serious damage to the host basidiocarp cells. Further analyses revealed that T. koningii infection resulted in the swelling of basidiocarps and significantly enhanced the activity of defense-related enzymes, such as malondialdehyde, manganese peroxidase, and polyphenol oxidase. These findings offer theoretical support for further research on the infection mechanisms of pathogenic fungi and the prevention of diseases caused by them.
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- 2023
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8. Mevalonate improves anti-PD-1/PD-L1 efficacy by stabilizing CD274 mRNA
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Wenxin Zhang, Xiaohui Pan, Yanjun Xu, Hongjie Guo, Mingming Zheng, Xi Chen, Honghai Wu, Fengming Luan, Qiaojun He, Ling Ding, and Bo Yang
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General Pharmacology, Toxicology and Pharmaceutics - Published
- 2023
9. Supplementary Figure and Tables from Cell-Cycle and DNA-Damage Response Pathway Is Involved in Leptomeningeal Metastasis of Non–Small Cell Lung Cancer
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Min Hu, Weimin Mao, Hongyang Lu, Lei Gong, Zhiyu Huang, Luo Fang, Xin Ye, Jingyan Ding, Haiyan Xu, Mengzhao Wang, Yanjun Xu, Xuesong Lu, Yan Xu, Xuehua Zhu, and Yun Fan
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Supple Fig 1, Supple Table 1-8, and Supple Ref. Supplementary Figure S1. 2100 Bioanalyzer spectra of total DNA extracted from CSF samples. Supplementary Table S1. Sample collection information. Supplementary Table S2. Genes/regions included in the LungPlasma panel. Supplementary Table S3. Genes included in the customized SeqCap EZ Choice Library. Supplementary Table S4. List of hotspot mutations and structural rearrangements. Supplementary Table S5. Co-existence of EGFR and PIK3CA mutations as reported in NSCLC patient datasets Supplementary Table S6. Occurrence of somatic protein-changing variants in primary tumor and CSF. Supplementary Table S7. Genes and biological pathways with recurrent somatic protein-changing variants in primary tumor or CSF. Supplementary Table S8. Comparison of EGFR mutation type(s) in CSF cfDNA and pellet DNA as detected by droplet digital PCR (ddPCR).
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- 2023
10. Data from Cell-Cycle and DNA-Damage Response Pathway Is Involved in Leptomeningeal Metastasis of Non–Small Cell Lung Cancer
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Min Hu, Weimin Mao, Hongyang Lu, Lei Gong, Zhiyu Huang, Luo Fang, Xin Ye, Jingyan Ding, Haiyan Xu, Mengzhao Wang, Yanjun Xu, Xuesong Lu, Yan Xu, Xuehua Zhu, and Yun Fan
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Purpose: Leptomeningeal metastasis (LM) is a detrimental complication of non–small cell lung cancer (NSCLC) and associated with poor prognosis. However, the underlying mechanisms of the metastasis process are still poorly understood.Experimental Design: We performed next-generation panel sequencing of primary tumor tissue, cerebrospinal fluid (CSF), and matched normal controls from epidermal growth factor receptor (EGFR) mutation-positive NSCLC patients with LM.Results: The status of EGFR-activating mutations was highly concordant between primary tumor and CSF. PIK3CA aberrations were high in these patients, implicating an association with LM risk. Intriguingly, low overlapping of somatic protein-changing variants was observed between paired CSF and primary lesions, exhibiting tumor heterogeneity and genetic divergence. Moreover, genes with CSF-recurrent genomic alterations were predominantly involved in cell-cycle regulation and DNA-damage response (DDR), suggesting a role of the pathway in LM development.Conclusions: Our study has shed light on the genomic variations of NSCLC-LM, demonstrated genetic heterogeneity and divergence, uncovered involvement of cell-cycle and DDR pathway, and paved the way for potential therapeutic approaches to this unmet medical need. Clin Cancer Res; 24(1); 209–16. ©2017 AACR.
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- 2023
11. A novel method to identify and characterize personalized functional driver lncRNAs in cancer samples
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Xuan Zheng, Feng Li, Hongying Zhao, Yongjuan Tang, Ke Xue, Xiaomeng Zhang, Weixin Liang, Rui Zhao, Xingyu Lv, Xinyu Song, Chunlong Zhang, Yanjun Xu, and Yunpeng Zhang
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Structural Biology ,Genetics ,Biophysics ,Biochemistry ,Computer Science Applications ,Biotechnology ,Research Article - Abstract
Cancer is a highly heterogeneous disease, and different individuals of the same cancer type can display different therapeutic effects and prognosis. Genetic variation of long non-coding RNA is the key factor driving tumor development, and plays an important role in genetic and biological heterogeneity. Therefore, it is of great significance to identify lncRNA as a driving factor in the non-coding region and explain its function in tumors for revealing the pathogenesis of cancer. In this study, we developed an integrated method to identify Personalized Functional Driver lncRNAs (PFD-lncRNAs) by integrating the DNA copy number data, gene expression data, and the biological subpathways information. Then, we applied the method to identify 2695 PFD-lncRNAs in 5334 samples across 19 cancer types. We performed an analysis of the association between PFD-lncRNAs and drug sensitivity, which provides medication guidance in disease therapy and drug discovery in the individual. Our research is of great significance for elucidating the biological roles of lncRNA genetic variation in cancer, revealing the related mechanism of cancer, and providing novel insights for individualized medicine.
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- 2023
12. In-orbit performance of ME onboard Insight-HXMT in the first 5 years
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Ying Tan, Xuelei Cao, Weichun Jiang, Xiaobo Li, Bin Meng, Wanchang Zhang, Sheng Yang, Tao Luo, Yudong Gu, Liang Sun, Xiaojing Liu, Yuanyuan Du, Jiawei Yang, Yanjun Xu, Jinyuan Liao, Yupeng Xu, Fangjun Lu, Liming Song, and Shuangnan Zhang
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Nuclear and High Energy Physics ,Nuclear Energy and Engineering ,FOS: Physical sciences ,Astrophysics - Instrumentation and Methods for Astrophysics ,Instrumentation and Methods for Astrophysics (astro-ph.IM) - Abstract
Introduction: The Medium Energy X-ray telescope (ME) is a collimated X-ray telescope onboard the Insight hard X-ray modulation telescope (Insight-HXMT) satellite. It has 1728 Si-PIN pixels readout using 54 low noise application-specific integrated circuits (ASICs). ME covers the energy range of 5-30 keV and has a total detection area of 952 cm2. The typical energy resolution of ME at the beginning of the mission is 3 keV at 17.8 keV (Full Width at Half Maximum, FWHM) and the time resolution is 255 us. In this study, we present the in-orbit performance of ME in its first 5 years of operation. Methods: The performance of ME was monitored using onboard radioactive sources and astronomical X-ray objects. ME carries six 241Am radioactive sources for onboard calibration, which can continuously illuminate the calibration pixels. The long-term performance evolution of ME can be quantified using the properties of the accumulated spectra of the calibration pixels. In addition, observations of the Crab Nebula and the pulsar were used to check the long-term evolution of the detection efficiency as a function of energy. Conclusion: After 5 years of operation, 742 cm2 of the Si-PIN pixels were still working normally. The peak positions of 241Am emission lines gradually shifted to the high energy region, implying a slow increase in ME gain of 1.43%. A comparison of the ME spectra of the Crab Nebula and the pulsar shows that the E-C relations and the redistribution matrix file are still acceptable for most data analysis works, and there is no detectable variation in the detection efficiency.
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- 2023
13. CiTSA: a comprehensive platform provides experimentally supported signatures of cancer immunotherapy and analysis tools based on bulk and scRNA-seq data
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Feng Li, Kejing Dong, Chunlong Zhang, Jingwen Wang, Yongjuan Tang, Ke Xue, Xuan Zheng, Kaiyue Song, Xiaomeng Zhang, Mengyue Li, Rui Zhao, Xiaoling Zhong, Yanjun Xu, Yunpeng Zhang, and Xia Li
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Cancer Research ,Oncology ,Immunology ,Immunology and Allergy - Published
- 2023
14. Combined contributions of cytochrome P450s (CYPs) and non-enzymatic metabolism in the in vitro biotransformation of anaprazole, a novel proton pump inhibitor
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Fei Liu, Yanjun Xu, Li Wang, Xifeng Ma, Zhen Zhang, and Xiaomei Zhuang
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Pharmacology ,General Medicine - Published
- 2023
15. Surface Density of Cobalt Single Atoms Manipulating Hydroxyl Radical Generation Via Dual Pathways: Electrons Supply and Active sites
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Jing Wang, Guangfei Yu, Yuchao Wang, Shenning Liu, Jiakai Qiu, Yanjun Xu, Zhuan Wang, Yuxian Wang, Yongbing Xie, and Hongbin Cao
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Biomaterials ,Electrochemistry ,Condensed Matter Physics ,Electronic, Optical and Magnetic Materials - Published
- 2023
16. Virtual elastography ultrasound via generative adversarial network for breast cancer diagnosis
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Zhao Yao, Ting Luo, YiJie Dong, XiaoHong Jia, YinHui Deng, GuoQing Wu, Ying Zhu, JingWen Zhang, Juan Liu, LiChun Yang, XiaoMao Luo, ZhiYao Li, YanJun Xu, Bin Hu, YunXia Huang, Cai Chang, JinFeng Xu, Hui Luo, FaJin Dong, XiaoNa Xia, ChengRong Wu, WenJia Hu, Gang Wu, QiaoYing Li, Qin Chen, WanYue Deng, QiongChao Jiang, YongLin Mou, HuanNan Yan, XiaoJing Xu, HongJu Yan, Ping Zhou, Yang Shao, LiGang Cui, Ping He, LinXue Qian, JinPing Liu, LiYing Shi, YaNan Zhao, YongYuan Xu, WeiWei Zhan, YuanYuan Wang, JinHua Yu, and JianQiao Zhou
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Multidisciplinary ,General Physics and Astronomy ,General Chemistry ,General Biochemistry, Genetics and Molecular Biology - Abstract
Elastography ultrasound (EUS) imaging is a vital ultrasound imaging modality. The current use of EUS faces many challenges, such as vulnerability to subjective manipulation, echo signal attenuation, and unknown risks of elastic pressure in certain delicate tissues. The hardware requirement of EUS also hinders the trend of miniaturization of ultrasound equipment. Here we show a cost-efficient solution by designing a deep neural network to synthesize virtual EUS (V-EUS) from conventional B-mode images. A total of 4580 breast tumor cases were collected from 15 medical centers, including a main cohort with 2501 cases for model establishment, an external dataset with 1730 cases and a portable dataset with 349 cases for testing. In the task of differentiating benign and malignant breast tumors, there is no significant difference between V-EUS and real EUS on high-end ultrasound, while the diagnostic performance of pocket-sized ultrasound can be improved by about 5% after V-EUS is equipped.
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- 2023
17. Biological activities and gene expression of detoxifying enzymes in Tribolium castaneum induced by Moutan cortex essential oil
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Xin Li, Yanjun Xu, Jing Liu, Xiaoxue Yu, Wenjuan Zhang, and Chunxue You
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Health, Toxicology and Mutagenesis ,Toxicology - Published
- 2022
18. Efficacy and safety of ultrasonography guided transperineal percutaneous laser ablation for treating benign prostatic hyperplasia: a randomized controlled trial
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Lei Chen, Wei Zhang, Zheying Meng, Qian Guo, Nailong Cao, Yanjun Xu, Qiang Fu, and Bing Hu
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BACKGROUND: Transperineal percutaneous laser ablation (TPLA) has been proved a feasible and minimally invasive treatment for lower urinary tract symptoms (LUTS) due to benign prostatic hyperplasia (BPH). However, the comparison with other therapeutic options, in particular transurethral resection of the prostate (TURP), the most widely used and gold standard surgical method for BPH patients, remained absent. METHODS: Totally 51 BPH patients treated between 6/2019 and 12/2021 who had maximum urinary flow rate (Qmax) ≤15 mL/s and international prostate symptom score (IPSS) ≥8 were enrolled and randomly assigned to TURP or TPLA group at the ratio 1:1. TPLA was conducted with Esaote MyLab Twice equipped with flexible optical fiber, and TURP was performed by Olympus UES-40 SurgMaster System under standard procedure. The results were compared at 1, 3, 6 and 12 months after the operation. The efficacy endpoints included IPSS, Qmax, quality of life (QoL), European questionnaire-five dimensions (EQ-5D), residual urine volume (RUV), international index of erectile function-5 (IIEF-5) and ejaculatory dysfunction score. The safety endpoints included the incidence of complications, blood loss, visual analogue score (VAS) of pain, and catheter indwelling time. RESULTS: The IPSS decreased by 14.17±6.13 at 3 months after TPLA, and by 13.19±5.86 after TURP (P=0.706). The complication rate of TPLA and TURP was 16% and 19.23% respectively (P=0.811).TPLA proved less Intraoperative blood loss (6.84±3.1mL,P<0.001) and better ejaculatory protection within 6 months (P<0.05). TURP has advantages in catheter indwelling time(P=0.012) and Qmax within 6 months(P<0.05). CONCLUSIONS: TPLA is comparable to TURP in the symptom relief of BPH patients, and with shorter operation time, less invasiveness and better protection, which may be more suitable for patients intolerant to TURP, or with underlying diseases such as anemia.
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- 2023
19. Estradiol regulates leptin sensitivity to control feeding via hypothalamic Cited1
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Ismael González-García, Elena García-Clavé, Alberto Cebrian-Serrano, Ophélia Le Thuc, Raian E. Contreras, Yanjun Xu, Tim Gruber, Sonja C. Schriever, Beata Legutko, Jutta Lintelmann, Jerzy Adamski, Wolfgang Wurst, Timo D. Müller, Stephen C. Woods, Paul T. Pfluger, Matthias H. Tschöp, Alexandre Fisette, and Cristina García-Cáceres
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Leptin ,Pro-Opiomelanocortin ,diet-induced obesity ,Estradiol ,Physiology ,Pomc ,Arcuate Nucleus of Hypothalamus ,Cell Biology ,metabolism [Hypothalamus] ,ARC ,Mice ,ddc:570 ,metabolism [Obesity] ,Animals ,metabolism [Pro-Opiomelanocortin] ,Female ,pharmacology [Estradiol] ,hypothalamus ,Molecular Biology ,metabolism [Leptin] - Abstract
Until menopause, women have a lower propensity to develop metabolic diseases than men, suggestive of a protective role for sex hormones. Although a functional synergy between central actions of estrogens and leptin has been demonstrated to protect against metabolic disturbances, the underlying cellular and molecular mechanisms mediating this crosstalk have remained elusive. By using a series of embryonic, adult-onset, and tissue/cell-specific loss-of-function mouse models, we document an unprecedented role of hypothalamic Cbp/P300-interacting transactivator with Glu/Asp-rich carboxy-terminal domain 1 (Cited1) in mediating estradiol (E2)-dependent leptin actions that control feeding specifically in pro-opiomelanocortin (Pomc) neurons. We reveal that within arcuate Pomc neurons, Cited1 drives leptin's anorectic effects by acting as a co-factor converging E2 and leptin signaling via direct Cited1-ERα-Stat3 interactions. Together, these results provide new insights on how melanocortin neurons integrate endocrine inputs from gonadal and adipose axes via Cited1, thereby contributing to the sexual dimorphism in diet-induced obesity.
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- 2023
20. Multi-user Load Elasticity Assessment Method Considering Load Statistical Characteristics
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Chen Liu, Weimin Chen, Junsheng Zhang, Yanjun Xu, Jialing Bai, Xianyong Xiao, Shu Zhang, and He Huang
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- 2022
21. Design, synthesis, and biological activity of sulfoximine derivatives
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Zhaohai Qin, Mian Wang, Jia-Qi Li, Bin Fu, Yanfei Liu, Yumei Xiao, Yan-hua Wu, and Yanjun Xu
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Design synthesis ,Chemistry ,Organic Chemistry ,Biological activity ,Combinatorial chemistry - Published
- 2021
22. The Pd-catalyzed precise synthesis of self-assembled fluorescent nanoprobes with different molecular weights for enhancing the permeability of cell membrane and targeting lysosomes
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Chen Han, Shao-Bin Sun, Xun Ji, Yanjun Xu, and Jian-Yong Wang
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Polymers and Plastics ,General Chemical Engineering ,Materials Chemistry ,Environmental Chemistry ,General Chemistry ,Biochemistry - Published
- 2023
23. Mortality burden based on the associations of ambient PM2.5 with cause-specific mortality in China: Evidence from a death-spectrum wide association study (DWAS)
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Tao Liu, Weiwei Gong, Chunliang Zhou, Guoxia Bai, Ruilin Meng, Biao Huang, Haoming Zhang, Yanjun Xu, Ruying Hu, Zhulin Hou, Yize Xiao, Junhua Li, Xiaojun Xu, Donghui Jin, Mingfang Qin, Qinglong Zhao, Yiqing Xu, Jianxiong Hu, Jianpeng Xiao, Guanghao He, Zuhua Rong, Fangfang Zeng, Pan Yang, Dan Liu, Lixia Yuan, Ganxiang Cao, Zhiqing Chen, Siwen Yu, Shangfeng Yang, Cunrui Huang, Yaodong Du, Min Yu, Lifeng Lin, Xiaofeng Liang, and Wenjun Ma
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Health, Toxicology and Mutagenesis ,Public Health, Environmental and Occupational Health ,General Medicine ,Pollution - Published
- 2023
24. Construction of anti-swelling circuit board-like activated graphene oxide lamellar nanofilms with functionalized heterostructured 2D nanosheets
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Zehai Xu, Yufan Zhang, Yanjun Xu, Qin Meng, Chong Shen, Lusheng Xu, and Guoliang Zhang
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Filtration and Separation ,Analytical Chemistry - Published
- 2023
25. Current Advance in Targeted Treatment and Immunotherapy for BRAF-mutant Advanced Non-small Cell Lung Cancer
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Na LI, Yanjun XU, and Yun FAN
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endocrine system diseases ,Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,immunotherapy ,lung neoplasms ,targeted therapy ,neoplasms ,digestive system diseases ,braf ,RC254-282 ,respiratory tract diseases - Abstract
With the development of precision medicine, therapies of targeting driver genes have significantly prolonged survival in advanced non-small cell lung cancer (NSCLC) patients. Among them, BRAF gene mutation is relatively rare, and the traditional regimen follows the treatment plan of NSCLC without driver gene mutation, which is far from meeting the clinical needs. In recent years, targeted therapy for NSCLC patients with BRAF V600E mutations has shown good efficacy when we are still exploring the better targeted therapies for other BRAF-mutated subtypes. Immunotherapy also showed positive antitumor activity in V600E and non-V600E subtypes of BRAF-mutated NSCLC. This article reviewed the progress of immunological and targeted therapy for patients with BRAF-mutated NSCLC.
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- 2021
26. Method validation and residue analysis of methoxyfenozide and metaflumizone in Chinese broccoli under field conditions by liquid chromatography with tandem mass spectrometry
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Lijun Han, Qin Dong, Xiang-Hong Hao, Chengkui Qiao, Yingying Bi, Fayi Qin, Wei Yao, Yanjun Xu, and Shuangyu Song
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Semicarbazones ,China ,Residue (complex analysis) ,Chromatography ,Pesticide residue ,Stability test ,Pesticide Residues ,Filtration and Separation ,Brassica ,Pesticide ,Tandem mass spectrometry ,Analytical Chemistry ,Juvenile Hormones ,chemistry.chemical_compound ,Hydrazines ,chemistry ,Tandem Mass Spectrometry ,Metaflumizone ,Chromatography, High Pressure Liquid ,Field conditions - Abstract
Methoxyfenozide and metaflumizone are insecticides used on Chinese broccoli to prevent insects and increase yield. However, the residues are potentially harmful to the environment and consumers. In this study, the quick, easy, cheap, effective, rugged, safe method with high-performance liquid chromatography with tandem mass spectrometry was modified and validated for determination of methoxyfenozide and metaflumizone in Chinese broccoli. The clean-up efficiency of different sorbents including C18 , primary secondary amine, graphitized carbon black, and carbon nanofiber was compared. Recoveries of the validated method were 71.8-94.6% with relative standard deviations of 1.5-3.2% and the limits of quantification were 0.01 and 0.005 mg/kg for methoxyfenozide and metaflumizone, respectively. A storage stability test showed almost no degradation of methoxyfenozide in Chinese broccoli, however, the degradation rate of metaflumizone was 22.9% after 10-wk storage at -20°C. In field trials in four producing regions, the dissipation of both methoxyfenozide and metaflumizone in Chinese broccoli was fast, with half-lives of only 1.0-5.1 and 0.7-2.5 days, respectively. Terminal residues after application of the two pesticides were all below 1.0 mg/kg after 5 days.
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- 2021
27. The relationship between ambient temperature and fasting plasma glucose, temperature-adjusted type 2 diabetes prevalence and control rate: a series of cross-sectional studies in Guangdong Province, China
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Wenjun Ma, Guiyuan Ji, Xiaojun Xu, Lingchuan Guo, Guanhao He, Zihui Chen, Jianxiong Hu, Shaowei Chen, Xing Li, Weilin Zeng, Jie-wen Peng, Qun He, Tao Liu, Jiali Luo, Yanjun Xu, and Jianpeng Xiao
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Blood Glucose ,China ,endocrine system diseases ,Cross-sectional study ,T2DM ,Type 2 diabetes ,World health ,Animal science ,Glycemic control rate ,medicine ,Prevalence ,Humans ,Ambient temperature ,Plasma glucose ,business.industry ,Public Health, Environmental and Occupational Health ,Temperature ,Fasting plasma glucose ,Type 2 Diabetes Mellitus ,Rate control ,nutritional and metabolic diseases ,Fasting ,Seasonality ,medicine.disease ,Lifestyle factors ,Cross-Sectional Studies ,Diabetes Mellitus, Type 2 ,Public aspects of medicine ,RA1-1270 ,business ,Research Article - Abstract
Background There existed evidence that type 2 diabetes mellitus (T2DM) prevalence and control rate have seasonal variation. Our study aimed to examine the ambient temperature and fasting plasma glucose (FPG) association and estimate temperature-adjusted T2DM prevalence and control rate. Methods Four cross-sectional health surveys with 26,350 respondents were conducted in Guangdong Province from 2007 to 2015. Multistage cluster sampling was used to recruit study participants. The data of demographic characteristics, lifestyle factors, diet and use of hypoglycemic medicine, height, weight, FPG and meteorological information were collected. And an inverse distance-weighted method was employed to estimate daily temperature exposures at the individual’ s residential district/county. Base on World Health Organization 2006 criteria, participants were divided into normal fasting glucose (NFG) participants (n = 23,877), known T2DM patients (n = 916) and newly detected T2DM patients (n = 1557). Generalized additive mixed model was employed to evaluate the nonlinear associations between temperature and FPG among different T2DM subgroups. The T2DM prevalence and control rate were estimated based on temperature-FPG association. Results The curves of temperature and FPG were downward parabola for total, NFG and known T2DM groups, while it was “U”-shaped for newly detected T2DM patients. When temperature decreased from 30 °C to 4 °C, the FPG significantly increased 0.24 (95%CI: 0.15, 0.33) mmol/L, 0.10 (95%CI: 0.06, 0.14) mmol/L and 1.34 (95%CI: 0.56, 2.12) mmol/L in total, NFG and known T2DM groups, respectively. Compared to 19 °C, newly detected T2DM patients’ FPGs were increased 0.73 (95%CI: 0.13, 1.30) mmol/L at 4 °C and 0.53 (0.00, 1.07) mmol/L at 30 °C. The model-estimated temperature-adjusted T2DM prevalence had a down and up trend, with 9.7% at 5 °C, 8.9% at 20 °C and 9.4% at 30 °C, respectively. At 5, 10, 15, 20, 25 and 30 °C, the model-estimated temperature-adjusted T2DM control rates were 33.2, 35.4, 38.2, 43.6, 49.1 and 55.2%. Conclusion Temperature was negatively associated with FPG for NFG and known T2DM subgroups, while their association was U-shape for newly detected T2DM patients. Hence, the temperature-adjusted T2DM prevalence show a dip/peak pattern and T2DM control rate display a rising trend when temperature increase. Our findings suggest temperature should be considered in T2DM clinic management and epidemiological survey.
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- 2021
28. Ultralong Lifetime of Plasmon-Excited Electrons Realized in Nonepitaxial/Epitaxial Au@CdS/CsPbBr
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Xiaodong, Wan, Yue, Pan, Yanjun, Xu, Jia, Liu, Hailong, Chen, Rongrong, Pan, Yizhou, Zhao, Peiwu, Su, Yuemei, Li, Xiuming, Zhang, Shuping, Zhang, Hongbo, Li, Dong, Su, Yuxiang, Weng, and Jiatao, Zhang
- Abstract
Combination of the strong light-absorbing power of plasmonic metals with the superior charge carrier dynamics of halide perovskites is appealing for bio-inspired solar-energy conversion due to the potential to acquire long-lived plasmon-induced hot electrons. However, the direct coupling of these two materials, with Au/CsPbBr
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- 2022
29. Tumor immune microenvironment and immunotherapy efficacy in BRAF mutation non-small-cell lung cancer
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Hui Li, Yongchang Zhang, Yanjun Xu, Zhiyu Huang, Guoping Cheng, Mingyin Xie, Zichao Zhou, Yangyang Yu, Wenjing Xi, and Yun Fan
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Cancer Research ,Cellular and Molecular Neuroscience ,Immunology ,Cell Biology - Abstract
Previous small-size studies reported BRAF-mutated NSCLC patients have comparable sensitivity to immune checkpoint inhibitors (ICIs). However, how BRAF mutation affects the tumor immune microenvironment (TIME) is unknown. We performed Nanostring-panel RNA sequencing to evaluate TIME in 57 BRAF mutated and wild-type (WT) NSCLC specimens (cohort A). The efficacy of ICI monotherapy or combined therapies was determined in 417 patients with WT and BRAF mutated NSCLC (cohort B). We found that BRAF-mutant tumors had similar ratios of CD8+ T cells to Tregs, the balance of cytotoxicity gene expression signatures and immune suppressive features, and similar ICI-response-related biomarkers to WT NSCLC. A similar TIME pattern was observed between the BRAF V600E and Non-V600E subgroups of NSCLC. The further retrospective study confirmed that treatment with ICI monotherapy or combined therapies resulted in similar overall survival (OS) (HR: 0.85; 95% CI, 0.56 to 1.30; p = 0.47) and progress-free survival (PFS) (HR: 1.02; 95% CI, 0.72 to 1.44; p = 0.91) of patients with WT (n = 358) and BRAF mutant (n = 59) NSCLC. Similarly, both patients with BRAF V600E or Non-V600E NSCLC had similar responses to immunotherapy. Our findings support that BRAF mutation did not modulate TIME in NSCLC and therapeutic responses to ICIs. Patients with NSCLC harboring BRAF mutation should not be denied treatment with ICIs.
- Published
- 2022
30. Identifying and characterizing drug sensitivity-related lncRNA-TF-gene regulatory triplets
- Author
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Congxue Hu, Yingqi Xu, Feng Li, Wanqi Mi, He Yu, Xinran Wang, Xin Wen, Shuaijun Chen, Xia Li, Yanjun Xu, and Yunpeng Zhang
- Subjects
Gene Expression Regulation, Neoplastic ,Drug Resistance ,Humans ,Gene Regulatory Networks ,RNA, Long Noncoding ,Molecular Biology ,Biomarkers ,Information Systems - Abstract
Recently, many studies have shown that lncRNA can mediate the regulation of TF-gene in drug sensitivity. However, there is still a lack of systematic identification of lncRNA-TF-gene regulatory triplets for drug sensitivity. In this study, we propose a novel analytic approach to systematically identify the lncRNA-TF-gene regulatory triplets related to the drug sensitivity by integrating transcriptome data and drug sensitivity data. Totally, 1570 drug sensitivity-related lncRNA-TF-gene triplets were identified, and 16 307 relationships were formed between drugs and triplets. Then, a comprehensive characterization was performed. Drug sensitivity-related triplets affect a variety of biological functions including drug response-related pathways. Phenotypic similarity analysis showed that the drugs with many shared triplets had high similarity in their two-dimensional structures and indications. In addition, Network analysis revealed the diverse regulation mechanism of lncRNAs in different drugs. Also, survival analysis indicated that lncRNA-TF-gene triplets related to the drug sensitivity could be candidate prognostic biomarkers for clinical applications. Next, using the random walk algorithm, the results of which we screen therapeutic drugs for patients across three cancer types showed high accuracy in the drug-cell line heterogeneity network based on the identified triplets. Besides, we developed a user-friendly web interface-DrugSETs (http://bio-bigdata.hrbmu.edu.cn/DrugSETs/) available to explore 1570 lncRNA-TF-gene triplets relevant with 282 drugs. It can also submit a patient’s expression profile to predict therapeutic drugs conveniently. In summary, our research may promote the study of lncRNAs in the drug resistance mechanism and improve the effectiveness of treatment.
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- 2022
31. Comprehensive characterization of clonality of driver genes revealing their clinical relevance in colorectal cancer
- Author
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Jian Shi, Li Wang, Xiangzhe Yin, Lixia Wang, Lin Bo, Kailai Liu, Ke Feng, Shihua Lin, Yanjun Xu, Shangwei Ning, and Hongying Zhao
- Subjects
Mutation ,Humans ,Genomics ,Kaplan-Meier Estimate ,General Medicine ,Colorectal Neoplasms ,L-Amino Acid Oxidase ,General Biochemistry, Genetics and Molecular Biology - Abstract
Background Genomic studies of colorectal cancer have revealed the complex genomic heterogeneity of the tumor. The acquisition and selection of genomic alterations may be critical to understanding the initiation and progression of this disease. Methods In this study, we have systematically characterized the clonal architecture of 97 driver genes in 536 colorectal cancer patients from TCGA. Results A high proportion of clonal mutations in 93 driver genes were observed. 40 genes showed significant associations between their clonality and multiple clinicopathologic factors. Kaplan–Meier analysis suggested that the mutation clonality of ANK1, CASP8, SMAD2, and ARID1A had a significant impact on the CRC patients' outcomes. Multivariable analysis revealed that subclonal ANK1 mutations, clonal CASP8 mutations, and clonal SMAD2 mutations independently predicted for shorter overall survival after adjusting for clinicopathological factors. The poor outcome of the subclonal ANK1 mutation may be caused by upregulation of IL4I1, IDO1, IFNG and MAPK12 which showed potential roles in tumor immune evasion through accumulation of immunosuppressive cells such as regulatory T cells and myeloid derived suppressor cells. Conclusion These results suggested that the clonality of driver genes could act as prognostic markers and potential therapeutic targets in human colorectal cancer.
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- 2022
32. Understanding Aerobic Nitrogen Photooxidation on Titania through In Situ Time-Resolved Spectroscopy
- Author
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Shuai Zhang, Yunxuan Zhao, Yingxuan Miao, Yanjun Xu, Jingrun Ran, Zhuan Wang, Yuxiang Weng, and Tierui Zhang
- Subjects
General Chemistry ,General Medicine ,Catalysis - Abstract
Nitrate is an important raw material for chemical fertilizers, but it is industrially manufactured in multiple steps at high temperature and pressure, urgently motivating the design of a green and sustainable strategy for nitrate production. We report the photosynthesis of nitrate from N
- Published
- 2022
33. Porous Composite Gel Polymer Electrolyte with Interfacial Transport Pathways for Flexible Quasi Solid Lithium-Ion Batteries
- Author
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Xueqian Kong, Xiuli Wang, Shengzhao Zhang, Xianzhang Wu, Changdong Gu, Yanjun Xu, Xinhui Xia, Jiangping Tu, and Lina Gao
- Subjects
Battery (electricity) ,Materials science ,Composite number ,chemistry.chemical_element ,02 engineering and technology ,Electrolyte ,Conductivity ,010402 general chemistry ,021001 nanoscience & nanotechnology ,01 natural sciences ,0104 chemical sciences ,chemistry ,Chemical engineering ,Solid-state battery ,Ionic conductivity ,General Materials Science ,Lithium ,0210 nano-technology ,Quasi-solid - Abstract
The growing demand for safer energy storage devices leads to wide research on solid-state lithium-ion batteries. However, as an important component in the solid-state battery, the solid-state electrolyte often encounters problems, especially the low conductivity at room temperature, inhibiting the development of solid-state batteries. Here, improved electrochemical performances of lithium-ion batteries are obtained by designing a composite gel polymer electrolyte with a sponge-like structure. The porous composite gel polymer electrolyte (PCGPE) is developed by a facile phase inversion process of poly(vinylidiene fluoride-hexafluoropropylene) (PVdF-HFP) and Li6.4La3Zr1.4Ta0.6O12 (LLZTO). The solid-state nuclear magnetic resonance test proves the continuous porous structure constructs fast Li-ion transport pathways on internal interfaces. As a result, the ionic conductivity of PCGPE is up to 5.45 × 10-4 S cm-1 at room temperature. Moreover, an initial capacity of 142.2 mAh g-1 and 82.6% capacity retention at 1 C after 350 cycles are successfully achieved in flexible LiFPO4//PCGPE//Li batteries.
- Published
- 2021
34. Health transition of the causes of mortality between 2005 and 2015 in Guangdong, China
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Xiaojun Xu, Xin-ying Zeng, Si-li Tang, Yanjun Xu, Ge Chen, Qian Yi, Xue-yan Zheng, Lifeng Lin, and Shu-li Ma
- Subjects
Male ,China ,medicine.medical_specialty ,Pearl river delta ,Global Health ,Health Transition ,Cause of Death ,Environmental health ,Epidemiology ,Health care ,medicine ,Humans ,Mortality ,Noncommunicable Diseases ,Health policy ,Aged ,Disease surveillance ,business.industry ,Public health ,Infant, Newborn ,General Medicine ,medicine.disease ,Malnutrition ,Female ,business - Abstract
Objectives To analyse the patterns of transition of health burden for 110 causes of death by stratification of age, sex and geographic regions in Guangdong between 2005 and 2015. Methods We analysed the age-specific, sex-specific, region-specific mortality in Guangdong based on assembled databases. County-level surveillance data were calculated to inform city-level changes. Results The age-standardised mortality of all causes, non-communicable diseases (NCDs), communicable diseases, maternal diseases, neonatal diseases, malnutrition and injury declined progressively. Despite declining mortality of NCDs, the overall burden of disease was dominated by NCDs (ie, cerebrovascular disease, chronic obstructive pulmonary disease) that still accounted for 86.93% and 88.12% of death in 2005 and 2015, respectively. Considerable variations across geographic regions were observed (lowest in Pearl River Delta and highest in west Guangdong). There was a modest shift to transport injuries at younger ages and unintentional injuries in the elderly. Conclusions We have documented a dramatic change in the overall mortality and age-specific, sex-specific and cause-specific mortality in Guangdong province between 2005 and 2015. The significant burden of NCDs remains a major healthcare issue despite the notable progress in reducing mortality in Guangdong, China. Our findings highlight important unmet needs to refine healthcare services by taking into account the inequity of age, sex and geographic regions. Identification of the ‘treatable’ risk factors and improved disease surveillance should be continuously improved to minimised the overall and cause-specific mortality.
- Published
- 2021
35. Application of Numerical Simulation in Teeth Propotion Design of Diamond Bit
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Yanjun Xu, Liang Xu, Yibo Liu, and Qiang Xu
- Published
- 2022
36. Review of: 'Breast Cancer Subtypes And Prognosis: Answers To Subgroup Classification Questions, Identifying The Worst Subgroup In Our Single-Center Series'
- Author
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Yanjun Xu
- Published
- 2022
37. Augmented reality elastography ultrasound via generate adversarial network for breast cancer diagnosis
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Jinhua Yu, Zhao Yao, Ting Luo, YiJie Dong, XiaoHong Jia, YinHui Deng, Ying Zhu, JingWen Zhang, Juan Liu, LiChun Yang, XiaoMao Luo, ZhiYao Li, YanJun Xu, Bin Hu, YunXia Huang, Cai Chang, JinFeng Xu, Hui Luo, Fajin Dong, XiaoNa Xia, ChengRong Wu, WenJia Hu, Gang Wu, QiaoYing Li, Qin Chen, WanYue Deng, QiongChao Jiang, YongLin Mou, HuanNan Yan, XiaoJing Xu, HongJu Yan, Ping Zhou, Yang Shao, LiGang Cui, Ping He, LinXue Qian, JinPing Liu, LiYing Shi, YaNan Zhao, YongYuan Xu, WeiWei Zhan, YuanYuan Wang, Jianqiao Zhou, and GuoQing Wu
- Abstract
Elastography ultrasound (EUS) imaging is a vital ultrasound imaging modality. The current use of EUS faces many challenges, such as vulnerability to subjective manipulation, echo signal attenuation, and unknown risks of elastic pressure in certain delicate tissues. The hardware requirement of EUS also hinders the trend of miniaturization of ultrasound equipment. We therefore present a cost-efficient solution by designing a deep neural network to synthesize augmented reality EUS (AR-EUS) from conventional B-mode images. By using 4580 cases from 15 medical centers, we evaluate the performance of AR-EUS on breast cancer diagnosis. The quantitative metric and blind evaluation results show no significant difference between AR-EUS and real EUS in image authenticity and in clinical diagnosis. The performance of pocket-sized ultrasound in breast tumor diagnosis is also significantly improved after AR-EUS is equipped. These results highlight the potential of AR-EUS in clinical application.
- Published
- 2022
38. Tolerability, safety, and preliminary antitumor activity of fuzuloparib in combination with SHR-1316 in patients with relapsed small cell lung cancer: a multicenter, open-label, two-stage, phase Ib trial
- Author
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Yanjun Xu, Zhiyu Huang, Jian Fang, Anwen Liu, Hongyang Lu, Xinmin Yu, Kaiyan Chen, Xiaoling Xu, Xinjing Ma, Wei Shi, Young Hak Kim, Taiki Hakozaki, Alfredo Addeo, Yu Shen, Shaorong Li, and Yun Fan
- Subjects
Oncology ,Original Article - Abstract
BACKGROUND: Second-line treatment options for small cell lung cancer (SCLC) are limited. Preclinical research shows that inhibition of poly (ADP-ribose) polymerase (PARP) could upregulate programmed death-ligand 1 (PD-L1), and thus render cancer cells more sensitive to immune checkpoint inhibitors. This study investigated the tolerability, safety, and preliminary antitumor activity of fuzuloparib (a PARP inhibitor) plus SHR-1316 (a PD-L1 inhibitor) for relapsed SCLC. METHODS: Patients with SCLC who failed previous first-line platinum-based therapy were enrolled in this two-stage phase Ib trial. In stage 1, 2 dose levels were designed: fuzuloparib 100 mg or 150 mg twice daily plus SHR-1316 600 mg every 2 weeks, with 6 patients in each dose level. Based on the tolerability during the first 28-day cycle and the preliminary antitumor activity in stage 1, a recommended phase II dose (RP2D) was determined and introduced in the stage 2 expansion phase. The primary endpoints were safety and RP2D in stage 1 and objective response rate (ORR) in stage 2. RESULTS: A total of 23 patients were enrolled, with 16 receiving fuzuloparib 100 mg plus SHR-1316 and 7 receiving fuzuloparib 150 mg plus SHR-1316. At data cutoff on April 23, 2021, the median follow-up duration was 6.4 months (IQR, 3.0–9.7 months). All patients discontinued study treatment. One patient receiving fuzuloparib 150 mg plus SHR-1316 had clinically significant toxicities, and fuzuloparib 100 mg plus SHR-1316 was considered as the RP2D. In the RP2D cohort, the confirmed ORR was 6.3% (95% CI: 0.2–30.2%), and the disease control rate was 37.5% (95% CI: 15.2–64.6%). The median progression-free survival was 1.4 months (95% CI: 1.3–2.8 months), and the median overall survival was 5.6 months (95% CI: 3.0–16.7 months). Grade ≥3 treatment-related adverse events (TRAE) occurred in 8 patients (34.8%). No treatment-related death occurred, and no patients discontinued treatment due to TRAEs. CONCLUSIONS: Fuzuloparib combined with SHR-1316 failed to improve the outcomes in unselected patients with relapsed SCLC. Future studies with biomarker analysis are warranted to select patients most likely to benefit from this combination treatment. Fuzuloparib 100 and 150 mg plus SHR-1316 were both tolerable with no new signals observed.
- Published
- 2022
39. Prognostic Features of the Tumor Immune Microenvironment in Glioma and Their Clinical Applications: Analysis of Multiple Cohorts
- Author
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Chunlong Zhang, Yuxi Zhang, Guiyuan Tan, Wanqi Mi, Xiaoling Zhong, Yu Zhang, Ziyan Zhao, Feng Li, Yanjun Xu, and Yunpeng Zhang
- Subjects
Immunology ,Biomarkers, Tumor ,Tumor Microenvironment ,Humans ,Immunology and Allergy ,Glioma ,Glioblastoma ,Prognosis - Abstract
Glioma is the most common malignant tumor of the central nervous system. Tumor purity is a source of important prognostic factor for glioma patients, showing the key roles of the microenvironment in glioma prognosis. In this study, we systematically screened functional characterization related to the tumor immune microenvironment and constructed a risk model named Glioma MicroEnvironment Functional Signature (GMEFS) based on eight cohorts. The prognostic value of the GMEFS model was also verified in another two glioma cohorts, glioblastoma (GBM) and low-grade glioma (LGG) cohorts, from The Cancer Genome Atlas (TCGA). Nomograms were established in the training and testing cohorts to validate the clinical use of this model. Furthermore, the relationships between the risk score, intrinsic molecular subtypes, tumor purity, and tumor-infiltrating immune cell abundance were also evaluated. Meanwhile, the performance of the GMEFS model in glioma formation and glioma recurrence was systematically analyzed based on 16 glioma cohorts from the Gene Expression Omnibus (GEO) database. Based on multiple-cohort integrated analysis, risk subpathway signatures were identified, and a drug–subpathway association network was further constructed to explore candidate therapy target regions. Three subpathways derived from Focal adhesion (path: 04510) were identified and contained known targets including platelet derived growth factor receptor alpha (PDGFRA), epidermal growth factor receptor (EGFR), and erb-b2 receptor tyrosine kinase 2 (ERBB2). In conclusion, the novel functional signatures identified in this study could serve as a robust prognostic biomarker, and this study provided a framework to identify candidate therapeutic target regions, which further guide glioma patients’ clinical decision.
- Published
- 2022
40. Autophagy and Apoptosis in Acute Brain Injuries: From Mechanism to Treatment
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Chuyu He, Yanjun Xu, Jing Sun, Layla Li, John H. Zhang, and Yuechun Wang
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Physiology ,Clinical Biochemistry ,General Earth and Planetary Sciences ,Cell Biology ,Molecular Biology ,Biochemistry ,General Environmental Science - Published
- 2022
41. Key metabolites and mechanistic insights in forchlorfenuron controlling kiwifruit development
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Yingying Bi, Chengkui Qiao, Lijun Han, Hanzhong Xie, Yanjun Xu, Di Wu, Ming Zhuang, Xinru Lv, and Mengyuan Cao
- Subjects
Food Science - Published
- 2023
42. Porous Polyamide Skeleton-Reinforced Solid-State Electrolyte: Enhanced Flexibility, Safety, and Electrochemical Performance
- Author
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Taibo Liang, Zhujun Yao, Xiuli Wang, Shengzhao Zhang, Xinhui Xia, Jiangping Tu, Changdong Gu, and Yanjun Xu
- Subjects
chemistry.chemical_classification ,Materials science ,chemistry.chemical_element ,02 engineering and technology ,Polymer ,Electrolyte ,010402 general chemistry ,021001 nanoscience & nanotechnology ,01 natural sciences ,Lithium-ion battery ,0104 chemical sciences ,chemistry ,Chemical engineering ,visual_art ,Polyamide ,visual_art.visual_art_medium ,Solid-state battery ,Ionic conductivity ,General Materials Science ,Lithium ,Ceramic ,0210 nano-technology - Abstract
The growing demand for safer lithium-ion batteries draws researchers' attention to solid-state electrolytes. In general, a desired electrolyte should be flexible, mechanically strong, and with high ionic conductivity. A solid-state electrolyte with a polymer as a matrix seems to be able to meet these demands. However, a pure polymer electrolyte lacks sufficient strength to suppress Li dendrites, and hybrids with ceramic components often lead to poor flexibility, both far from satisfactory. Herein, a solid-state electrolyte is designed by employing a mass-produced porous polyamide (PA) film infiltrated with polyethylene oxide (PEO)/lithium bis(trifluoromethanesulfonyl)imide (LiTFSI). The PA/PEO/LiTFSI electrolyte is flexible but robust with a Young's modulus of up to 1030 MPa, ensuring steady Li//Li cycling without short circuit for more than 400 h. Also, the porous structure of the PA film decreases the crystalline regions and effectively enhances the ionic conductivity (2.05 × 10-4 S cm-1 at 30 °C). When cycled at 1C, solid-state LiFePO4//Li batteries assembled with the PA/PEO/LiTFSI electrolyte retain 82% capacity after 300 cycles (60 °C). In addition, a flexible LiFePO4//PA/PEO/LiTFSI//Li pouch cell can also work well in harsh operating environments, such as being folded, crimped, and pierced.
- Published
- 2021
43. Encapsulation of fluazinam to extend efficacy duration in controlling Botrytis cinerea on cucumber
- Author
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Xili Liu, Pengfei Liu, Panqing Liu, Jianjun Hao, Bin Wang, Yanjun Xu, and Qizheng Liu
- Subjects
0106 biological sciences ,biology ,Aminopyridines ,Economic shortage ,General Medicine ,biology.organism_classification ,01 natural sciences ,Microscopic observation ,Fungicide ,010602 entomology ,chemistry.chemical_compound ,Pesticide formulation ,Ethyl cellulose ,chemistry ,Insect Science ,Phytotoxicity ,Botrytis ,Food science ,Cucumis sativus ,Agronomy and Crop Science ,Fluazinam ,010606 plant biology & botany ,Botrytis cinerea - Abstract
BACKGROUND Fluazinam is an effective fungicide in controlling gray mold, but has short duration of efficacy. Increasing application dosage may cause phytotoxicity. To overcome this shortage, a controlled-release technology was studied by encapsulating fluazinam. Ethyl cellulose polymer microcapsules were loaded with fluazinam to formulate a fluazinam capsule suspension (FCS). The efficacy for inhibition of B. cinerea and persistency of the FCS were examined by comparing with fluazinam technical concentrate (FTC) and aqueous fluazinam suspension concentrate (FSC) using microscopic observation and high-performance liquid chromatography analysis. RESULTS FCS formed capsules, with median size of 3.17 μm in diameter, had 82.3% encapsulation efficiency. It had a stronger inhibitory activity against B. cinerea than FTC and FSC measured 7 days after the treatments. The half-life of FCS on cucumber leaves was 3.4 days, longer than the 2.3 days of FSC. CONCLUSION FCS formulation significantly improved the inhibition of B. cinerea and resulted in prolonged and sustained release. Moreover, microencapsulation increased the duration of the efficacy of fluazinam on target crops. This formulation could help to sustain pesticides and protect the environment. © 2021 Society of Chemical Industry.
- Published
- 2021
44. Biological activities and gene expression of detoxifying enzymes in
- Author
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Xin, Li, Yanjun, Xu, Jing, Liu, Xiaoxue, Yu, Wenjuan, Zhang, and Chunxue, You
- Subjects
Insecticides ,Tribolium ,Insect Repellents ,Oils, Volatile ,Animals ,Gene Expression ,Paeonia ,Drugs, Chinese Herbal - Published
- 2022
45. Comprehensive analysis of ncRNA involvement in brain microglia immunology
- Author
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Feng Li, Xiaoling Zhong, Ziyan Zhao, Guiyuan Tan, Fei Xue, Yu Zhang, Yuxi Zhang, Yanjun Xu, Yunpeng Zhang, and Chunlong Zhang
- Subjects
MicroRNAs ,RNA, Untranslated ,Immunology ,Immunology and Allergy ,Brain ,RNA, Long Noncoding ,Microglia - Abstract
Microglia is a major class of brain-resident myeloid cells and non-coding RNAs (ncRNAs) serves as key regulators in microglia homeostasis and inflammatory process. Here, we constructed the systematical association between microglia and ncRNAs including miRNAs, lncRNAs and circRNAs from two aspects, manual retrieval and computational detection. A total of 648 experimental verified ncRNA-microglia associations were obtained from published studies, including ncRNA regulatory patterns within different experimental models. Furthermore, we extracted 9 miRNA and 1 lncRNA expression profiles from the GEO database. Also, we obtained 31 sample-match miRNA and mRNA expression profiles, containing a total of 2335 normal or disordered brain samples. Finally, we developed a platform named MG-ncRexplorer (http://bio-bigdata.hrbmu.edu.cn/MG-ncRexplorer/), exploring the associations between ncRNAs and microglia among experimental validated and computational detection. To demonstrate the usage of MG-ncRexplorer, we constructed regulatory target networks based on manual retrieval associations and identified risk glioma miRNAs among multiple high-throughput expression profiles.
- Published
- 2022
46. Effects of occupational exposure to dust, gas, vapor and fumes on chronic bronchitis and lung function impairment
- Author
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Xueyan Zheng, Yijin Zheng, Tingting Liao, Yanjun Xu, Li Liu, Ye Wang, Ni Xiao, Chuan Li, Ruilin Meng, Weijie Guan, Lifeng Lin, and Zhaoxuan He
- Subjects
respiratory tract diseases - Abstract
Objectives: We sought to investigate the effects of occupational exposure to vapors, gases, dust and fumes (VGDF) on chronic bronchitis and lung function impairment. Methods: We conducted chronic obstructive pulmonary disease surveillance in six cities of south China between 2014 and 2019. We recorded the diagnosis of chronic bronchitis, respiratory symptoms, occupational exposure to VGDF and other covariates by using a structured questionnaire. Logistic regression and multivariate linear regression model were adopted for analysis. Results: A total of 7418 and 5249 participants were included. Cough (OR: 1.60, 95%CI: 1.22 to 2.08) and phlegm (OR: 1.49, 95%CI: 1.19 to 1.85) correlated significantly with the exposure to dust. There was an increased risk of cough (OR: 1.53, 95%CI: 1.11 to 2.07) for occupational exposure to gas/vapor/fume. Dual exposure to dust and gas/vapor/fume was associated with a significantly increased risk of chronic bronchitis (OR: 1.74, 95%CI: 1.20 to 2.52), as well as cough (OR: 1.43, 95%CI: 1.15 to 1.79) and phlegm (OR: 1.49, 95%CI: 1.24 to 1.79). Gas/vapor/fume was associated with the reduced ratio of forced expiratory volume in one second and forced vital capacity (FEV1/FVC) (β: -1.05, 95%CI: -1.85 to -0.26) and maximal mid-expiratory flow(MMEF) (β: -0.15, 95%CI: -0.23 to -0.07). Dual exposure to dust and gas/vapor/fume was significantly associated with decreased FEV1/FVC (β: -0.74, 95%CI: -1.28 to -0.20) and MMEF (β: -0.06, 95%CI: -0.12 to -0.01) . Results of sensitivity analysis did not materially change. Conclusions: VGDF exposure was associated with chronic bronchitis, respiratory symptoms and impaired lung function, suggesting that VGDF contribute to the pathogenesis and progression of COPD.
- Published
- 2022
47. Patient-derived non-small cell lung cancer xenograft mirrors complex tumor heterogeneity
- Author
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Qiyi Feng, Rui Zhang, Kai Xiao, Guowei Che, Yanjun Xu, Ting Zhang, Yongsheng Wang, Jinxing Huang, Yuanli Zhang, Ke Chen, Cheng Shen, Zhihui Zhong, Xuanming Chen, Shuang Qiu, Bin Chen, Wei Zhe, Lili Jiang, and Hongxia Li
- Subjects
Male ,0301 basic medicine ,endocrine system ,Cancer Research ,Lung Neoplasms ,H&E stain ,non-small cell lung cancer (NSCLC) ,Antineoplastic Agents ,Vimentin ,Mice, SCID ,lcsh:RC254-282 ,Mice ,03 medical and health sciences ,0302 clinical medicine ,Mice, Inbred NOD ,Atezolizumab ,Carcinoma, Non-Small-Cell Lung ,tumor heterogeneity ,medicine ,Animals ,Humans ,Lung cancer ,Cisplatin ,non-small cell lung cancer (nsclc) ,biology ,business.industry ,lcsh:Neoplasms. Tumors. Oncology. Including cancer and carcinogens ,medicine.disease ,Xenograft Model Antitumor Assays ,Gene expression profiling ,030104 developmental biology ,patient-derived xenograft (pdx) ,Oncology ,030220 oncology & carcinogenesis ,biology.protein ,Cancer research ,Immunohistochemistry ,Female ,Original Article ,Drug Screening Assays, Antitumor ,business ,medicine.drug - Abstract
Objective: Patient-derived xenograft (PDX) models have shown great promise in preclinical and translational applications, but their consistency with primary tumors in phenotypic, genetic, and pharmacodynamic heterogeneity has not been well-studied. This study aimed to establish a PDX repository for non-small cell lung cancer (NSCLC) and to further elucidate whether it could preserve the heterogeneity within and between tumors in patients. Methods: A total of 75 surgically resected NSCLC specimens were implanted into immunodeficient NOD/SCID mice. Based on the successful establishment of the NSCLC PDX model, we compared the expressions of vimentin, Ki67, EGFR, and PD-L1 proteins between cancer tissues and PDX models using hematoxylin and eosin staining and immunohistochemical staining. In addition, we detected whole gene expression profiling between primary tumors and PDX generations. We also performed whole exome sequencing (WES) analysis in 17 first generation xenografts to further assess whether PDXs retained the patient heterogeneities. Finally, paclitaxel, cisplatin, doxorubicin, atezolizumab, afatininb, and AZD4547 were used to evaluate the responses of PDX models to the standard-of-care agents. Results: A large collection of serially transplantable PDX models for NSCLC were successfully developed. The histology and pathological immunohistochemistry of PDX xenografts were consistent with the patients’ tumor samples. WES and RNA-seq further confirmed that PDX accurately replicated the molecular heterogeneities of primary tumors. Similar to clinical patients, PDX models responded differentially to the standard-of-care treatment, including chemo-, targeted- and immuno-therapeutics. Conclusions: Our established PDX models of NSCLC faithfully reproduced the molecular, histopathological, and therapeutic characteristics, as well as the corresponding tumor heterogeneities, which provides a clinically relevant platform for drug screening, biomarker discovery, and translational research.
- Published
- 2021
48. Role of 'Stiff Rim' sign obtained by shear wave elastography in diagnosis and guiding therapy of breast cancer
- Author
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Bing Hu, Bin Hu, Hui-ling Gong, and Yanjun Xu
- Subjects
Adult ,medicine.medical_specialty ,stiff rim sign ,BI-RADS ,Breast imaging ,Breast Neoplasms ,Sensitivity and Specificity ,Metastasis ,Diagnosis, Differential ,Lesion ,Breast cancer ,Predictive Value of Tests ,Elastic Modulus ,Biopsy ,breast lesion ,medicine ,Humans ,Breast ,Stage (cooking) ,Early Detection of Cancer ,Retrospective Studies ,shear wave elastography ,TNM stage ,medicine.diagnostic_test ,business.industry ,Ultrasound ,Reproducibility of Results ,General Medicine ,medicine.disease ,Elasticity Imaging Techniques ,Female ,Radiology ,medicine.symptom ,business ,Research Paper - Abstract
Background: Because the halo around the tumor in shear wave elastography (SWE) is defined as the “stiff rim” sign, the diagnosis of breast lesions with the stiff rim sign is popular. However, only a few studies have described the stiff rim sign quantitatively. Objective: This study aimed to investigate the usefulness of the stiff rim sign in the diagnosis and tumor, node, metastasis stage of breast cancer. Methods: Two hundred and ten breast lesions were analyzed retrospectively. The maximum, mean, minimum Young's modulus (YM), and the YM standard deviation in the lesion, the peritumoral stiffness (shell), and the region containing lesion and shell were obtained. The suspicious SWE feature with the best diagnostic performance was chosen to downgrade or upgrade the Breast Imaging Reporting and Data System (BI-RADS) classification. The coincidence rates of SWE and B-mode ultrasound in T staging and their positive predictive value (PPV) for T staging were compared. Results: The presence of “stiff rim” sign was selected to upgrade or downgrade the BI-RADS classification because of its best performance. In pathological benign lesions, 18.9% (25 of 132) of lesions should undergo biopsy if BI-RADS combined with the stiff rim sign were referred while it was 57.6% (76 of 132) if BI-RADS alone was referred. The coincidence rate of T2 staging evaluated by SWE was significantly higher than B-mode ultrasound (about 30% increase, P < 0.001). The PPVs of SWE for T1 and T2 staging were higher than B-mode ultrasound (P < 0.05). Conclusions: BI-RADS combined with “stiff rim” sign is expected to improve the diagnostic performance of breast lesions to avoid unnecessary biopsy. The maximum diameter of the lesion measured in SWE is more accurate than B-mode ultrasound in the estimation of T staging, which is beneficial to the treatment and prognosis of breast cancer.
- Published
- 2021
49. A Case of Resistance to Selective RET-TKI Therapy With Pleural-Genotyped MET Amplification and Response to Crizotinib
- Author
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Zhiyu Huang, Jiamin Sheng, Yun Fan, Guoqiang Pan, Fanrong Zhang, Junyi Ye, Kaiyan Chen, Yanjun Xu, and Xiaoqing Yu
- Subjects
Pulmonary and Respiratory Medicine ,Oncology ,Cancer Research ,medicine.medical_specialty ,Crizotinib ,business.industry ,Met amplification ,medicine.disease ,Internal medicine ,Medicine ,business ,Lung cancer ,medicine.drug - Published
- 2021
50. Ultralong Lifetime of Plasmon‐Excited Electrons Realized in Nonepitaxial/Epitaxial Au@CdS/CsPbBr 3 Triple‐Heteronanocrystals
- Author
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Xiaodong Wan, Yue Pan, Yanjun Xu, Jia Liu, Hailong Chen, Rongrong Pan, Yizhou Zhao, Peiwu Su, Yuemei Li, Xiuming Zhang, Shuping Zhang, Hongbo Li, Dong Su, Yuxiang Weng, and Jiatao Zhang
- Subjects
Mechanics of Materials ,Mechanical Engineering ,General Materials Science - Published
- 2022
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