1,218 Works

Low intratumor heterogeneity correlates with increased response to PD-1 blockade in renal cell carcinoma

Xia Ran, Jinyuan Xiao, Yi Zhang, Huajing Teng, Fang Cheng, Huiqian Chen, Kaifan Zhang & Zhongsheng Sun
Background:Intratumor heterogeneity (ITH) has been shown to be inversely associated with immune infiltration in several cancers including clear cell renal cell carcinoma (ccRCC), but it remains unclear whether ITH is associated with response to immunotherapy (e.g. PD-1 blockade) in ccRCC.Methods:We quantified ITH using mutant-allele tumor heterogeneity, investigated the association of ITH with immune parameters in patients with ccRCC (n = 336) as well as those with papillary RCC (pRCC, n = 280) from The Cancer...

Effect of preoperative CT angiography examination on the clinical outcome of patients with BMI ≥ 25.0 kg/m2 undergoing laparoscopic gastrectomy: study protocol for a multicentre randomized controlled trial

Cheng Meng, Shougen Cao, Xiaodong Liu, Leping Li, Qingsi He, Lijian Xia, Lixin Jiang, Xianqun Chu, Xinjian Wang, Hao Wang, Xizeng Hui, Zuocheng Sun, Shusheng Huang, Quanhong Duan, Daogui Yang, Huanhu Zhang, Yulong Tian, Zequn Li & Yanbing Zhou
Abstract Background Gastric cancer, which is the fifth most common malignancy and the third most common cause of cancer-related death, is particularly predominant in East Asian countries, such as China, Japan and Korea. It is a serious global health issue that causes a heavy financial burden for the government and family. To our knowledge, there are few reports of multicentre randomized controlled trials on the utilization of CT angiography (CTA) for patients who are histologically...

Effect of preoperative CT angiography examination on the clinical outcome of patients with BMI ≥ 25.0 kg/m2 undergoing laparoscopic gastrectomy: study protocol for a multicentre randomized controlled trial

Cheng Meng, Shougen Cao, Xiaodong Liu, Leping Li, Qingsi He, Lijian Xia, Lixin Jiang, Xianqun Chu, Xinjian Wang, Hao Wang, Xizeng Hui, Zuocheng Sun, Shusheng Huang, Quanhong Duan, Daogui Yang, Huanhu Zhang, Yulong Tian, Zequn Li & Yanbing Zhou
Abstract Background Gastric cancer, which is the fifth most common malignancy and the third most common cause of cancer-related death, is particularly predominant in East Asian countries, such as China, Japan and Korea. It is a serious global health issue that causes a heavy financial burden for the government and family. To our knowledge, there are few reports of multicentre randomized controlled trials on the utilization of CT angiography (CTA) for patients who are histologically...

Linc00152 promotes malignant progression of glioma stem cells by regulating miR-103a-3p/FEZF1/CDC25A pathway

Mingjun Yu, Yixue Xue, Jian Zheng, Xiaobai Liu, Hai Yu, Libo Liu, Zhen Li & Yunhui Liu
Abstract Background Glioma is one of the most frequent intracranial malignant tumors. LncRNAs have been identified as new modulators in the origination and progression of glioma. Methods Quantitative real-time PCR were conducted to evaluate the expression of linc00152 and miRNA-103a-3p in glioma tissues and cells. Western blot were used to determine the expression of FEZF1 and CDC25A in glioma tissues and cells. Stable knockdown of linc00152 or over-expression of miR-103a-3p in glioma stem cells (GSCs)...

A CT-based nomogram for predicting the risk of adenocarcinomas in patients with subsolid nodule according to the 2021 WHO classification

Qilong Song, Biao Song, Xiaohu Li, Bin Wang, Yuan Li, Wu Chen, Zhaohua Wang, Xu Wang, Yongqiang Yu, Xuhong Min & Dongchun Ma
Abstract Purpose To establish a nomogram for predicting the risk of adenocarcinomas in patients with subsolid nodules (SSNs) according to the 2021 WHO classification. Methods A total of 656 patients who underwent SSNs resection were retrospectively enrolled. Among them, 407 patients were assigned to the derivation cohort and 249 patients were assigned to the validation cohort. Univariate and multi-variate logistic regression algorithms were utilized to identity independent risk factors of adenocarcinomas. A nomogram based on...

The bidirectional association of C-peptide with cardiovascular risk in nondiabetic adults and patients with newly diagnosed type 2 diabetes mellitus: a retrospective cohort study

Shuang-Tong Yan, Jing Sun, Zhao-Yan Gu, Xin-Yu Miao, Li-Chao Ma, Ban-Ruo Sun, Xiao-Min Fu, Hong-Zhou Liu, Guang Yang, Fu-Sheng Fang & Hong Li
Abstract Background Recent literature reported the biological role of C-peptide, but this role is still controversial and unclear. The primary aim of this study was to investigate associations between C-peptide and cardiovascular biomarkers as well as events. Methods A total of 55636 participants who had a health examination from 2017 to 2021 were included. Of them, 6727 participants visited the hospital at least twice. Cardiovascular biomarkers like high-sensitivity C-reactive protein (hs-CRP) and high-sensitivity cardiac troponin...

Supplementary material from \"Facile preparation of Fe3O4@Pt nanoparticles as peroxidase mimics for sensitive glucose detection by a paper-based colorimetric assay\"

Ye He, Panlin Wang, Xiaojing Chen, Yahuang Li, Jiajun Wei, Guoxi Cai, Kiyoshi Aoyagi & Wenxiang Wang
A simple strategy to rapidly detect glucose was developed by utilizing core (Fe3O4)–shell (Pt) magnetic nanoparticles (Fe3O4@Pt NPs) as a nanoenzyme and a paper-based colorimetric sensor. In the presence of H2O2, Fe3O4@Pt NPs catalyze the redox reaction of 3,3′,5,5′-tetramethylbenzidine (TMB) and generate a colour change from colourless to blue. On this basis, a colorimetric glucose sensing method assisted by glucose oxidase (GOx) was developed. Under the optimal conditions, the detection limits of the proposed assay...

Pseudomonas aeruginosa biofilm dispersion by the mouse antimicrobial peptide CRAMP

Yang Zhang, Peng Cheng, Shiyuan Wang, Xiaofen Li, Lianci Peng, Rendong Fang, Jing Xiong, Hui Li, Cui Mei, Jiye Gao, Zhenhui Song, Dengfeng Xu, Lizhi Fu, Chenghong Li, Xueqing Wu, Yuzhang He & Hongwei Chen
Abstract Pseudomonas aeruginosa (P. aeruginosa) is a known bacterium that produces biofilms and causes severe infection. Furthermore, P. aeruginosa biofilms are extremely difficult to eradicate, leading to the development of chronic and antibiotic-resistant infections. Our previous study showed that a cathelicidin-related antimicrobial peptide (CRAMP) inhibits the formation of P. aeruginosa biofilms and markedly reduces the biomass of preformed biofilms, while the mechanism of eradicating bacterial biofilms remains elusive. Therefore, in this study, the potential mechanism...

Unraveling the structures, functions and mechanisms of epithelial membrane protein family in human cancers

Nan Zhang, Hong‑Ping Zhu, Wei Huang, Xiang Wen, Xin Xie, Xian Jiang, Cheng Peng, Bo Han & Gu He
Abstract Peripheral myelin protein 22 (PMP22) and epithelial membrane proteins (EMP-1, -2, and -3) belong to a small hydrophobic membrane protein subfamily, with four transmembrane structures. PMP22 and EMPs are widely expressed in various tissues and play important roles in cell growth, differentiation, programmed cell death, and metastasis. PMP22 presents its highest expression in the peripheral nerve and participates in normal physiological and pathological processes of the peripheral nervous system. The progress of molecular genetics...

PCSK9 promotes the progression and metastasis of colon cancer cells through regulation of EMT and PI3K/AKT signaling in tumor cells and phenotypic polarization of macrophages

Lu Wang, Shuangshuang Li, Huanhua Luo, Qi Lu & Shuwen Yu
Abstract Background Proprotein convertase subtilisin/kexin type 9 (PCSK9) is the ninth member of the proprotein convertase family that regulates lipoprotein homeostasis and altered PCSK9 expression was reportedly associated with tumor development and progression. This study assessed PCSK9 expression and functions in human colon cancer and then explored the underlying molecular events. Methods Colon cancer tissues were utilized for analysis of PCSK9 expression for association with clinicopathological factors from patients by immunohistochemistry assay. Manipulation of PCSK9...

Validity and reliability of a semi-quantitative food frequency questionnaire in groups at high risk for cardiovascular diseases

Ni Yan, Nan Li, Wanlu Liu, Xiaoxia Li, Xiuying Liu, Pengju Zhang, Can Liu, Juan Li, Jiangwei Qiu, Yuhong Zhang & Yi Zhao
Abstract Background Diet is a modifiable risk factor for cardiovascular diseases (CVD), but there is still a lack of tools to assess dietary intakes of this high-risk population in Ningxia, China. Objective We aim to evaluate the validity and reliability of the semi-quantitative food frequency questionnaire (SFFQ) in the groups in Ningxia using a 24-hour dietary recall method. Method Two hundred five participants were included in the analysis. The two FFQs were 6 months apart,...

Dimethylarginine dimethylaminohydrolase 1 protects PM2.5 exposure-induced lung injury in mice by repressing inflammation and oxidative stress

Junling Gao, Tong Lei, Hongyun Wang, Kai Luo, Yuanli Wang, Bingqing Cui, Zhuoran Yu, Xiaoqi Hu, Fang Zhang, Yingjie Chen, Wenjun Ding & Zhongbing Lu
Abstract Background Airborne fine particulate matter with aerodynamic diameter ≤ 2.5 μm (PM2.5) pollution is associated with the prevalence of respiratory diseases, including asthma, bronchitis and chronic obstructive pulmonary disease. In patients with those diseases, circulating asymmetric dimethylarginine (ADMA) levels are increased, which contributes to airway nitric oxide deficiency, oxidative stress and inflammation. Overexpression of dimethylarginine dimethylaminohydrolase 1 (DDAH1), an enzyme degrading ADMA, exerts protective effects in animal models. However, the impact of DDAH1/ADMA on...

Circ_0003570 Suppresses the progression of hepatocellular carcinoma through miR-182-5p/STARD13 regulatory axis

Xu Zhang, Wenwen Chen, Dan Guo, Yarui Li, Yan Zhao, Mudan Ren, Guifang Lu, Xinlan Lu & Shuixiang He
Abstract Background Emerging evidence have revealed that circRNAs exert important biological effects in the development and progression of various diseases, including cancer. Our study aimed to elaborated the biological effects of hsa-circ_0003570 in hepatocellular carcinoma (HCC) development at the molecular level. Results The results of functional experiments showed that knockdown of circ_0003570 induced HCC cell growth, migration and invasion, whereas overexpression of circ_0003570 presented the opposite effects. In vivo experiments, xenograft tumors grown from circ-overexpressed...

Exosomal circZNF451 restrains anti-PD1 treatment in lung adenocarcinoma via polarizing macrophages by complexing with TRIM56 and FXR1

Jian Gao, Yong-Qiang Ao, Ling-Xian Zhang, Jie Deng, Shuai Wang, Hai-Kun Wang, Jia-Hao Jiang & Jian-Yong Ding
Abstract Background Although success was achieved in the therapy for a minority of advanced lung adenocarcinoma (LUAD) patients, anti-programmed death 1 (PD1) resistance was found in most LUAD patients. Here, we aimed to uncover a potential role of exosomal circular RNAs (circRNAs) in LUAD refractory to PD1 blockade. Methods circRNA sequencing and qRT-PCR were performed to determine the level of exosomal circRNAs in LUAD patients subsequently treated with anti-PD1. Then, the RNA pulldown, RNA immunoprecipitation,...

Federated learning algorithms for generalized mixed-effects model (GLMM) on horizontally partitioned data from distributed sources

Wentao Li, Jiayi Tong, Md. Monowar Anjum, Noman Mohammed, Yong Chen & Xiaoqian Jiang
Abstract Objectives This paper developed federated solutions based on two approximation algorithms to achieve federated generalized linear mixed effect models (GLMM). The paper also proposed a solution for numerical errors and singularity issues. And showed the two proposed methods can perform well in revealing the significance of parameter in distributed datasets, comparing to a centralized GLMM algorithm from R package (‘lme4’) as the baseline model. Methods The log-likelihood function of GLMM is approximated by two...

Mid-infrared Nb₄N₃-based superconducting nanowire single photon detectors for wavelengths up to 10 μm

Yiming Pan, Hui Zhou, XINGYU ZHANG, Huiqin Yu, Lu Zhang, Mengting Si, Hao Li, Lixing YOU & Zhen Wang
Mid-infrared (MIR) single-photon detection is emerging as an important technology for various applications. Superconducting nanowire single photon detectors (SNSPDs) fabricated with superconducting films with energy gaps of a few meV are natural broadband single-photon detectors. Recently, extending SNSPDs’ operation wavelengths into the MIR region is highly attractive. γ-Nb₄N₃ has a reduced N content and lower energy gap than the commonly used δ-NbN, making SNSPDs based on γ-Nb₄N₃ film more sensitive to low energy photons. We...

Label-Free Measurement of Wall Shear Stress in Brain Venule and Arteriole Using Dual-Wavelength Third-Harmonic-Generation Line-Scanning Imaging

Hui Cheng, Xinlin Chen, Zhong jincheng, Jia Li, Ping Qiu & Ke Wang
Wall shear stress (WSS) is of fundamental physiological and pathological significance. Current measurement technologies suffer from poor spatial resolution, or cannot measure instantaneous values in a label-free manner. Here we demonstrate dual-wavelength third-harmonic-generation (THG) line-scanning imaging, for instantaneous wall shear rate and WSS measurement in vivo. We used soliton self-frequency shift to generate dual-wavelength femtosecond pulses. Simultaneous acquisition of dual-wavelength THG line-scanning signals extract blood flow velocities at adjacent radial positions for instantaneous wall shear...

Estimating disability-adjusted life years for breast cancer and the impact of screening in female populations in China, 2015–2030: an exploratory prevalence-based analysis applying local weights

Xin-Xin Yan, Juan Zhu, Yan-Jie Li, Meng-Di Cao, Xin Wang, Hong Wang, Cheng-Cheng Liu, Jing Wang, Yang Li & Ju-Fang Shi
Abstract Background Most cancer disability-adjusted life year (DALY) studies worldwide have used broad, generic disability weights (DWs); however, differences exist among populations and types of cancers. Using breast cancer as example, this study aimed to estimate the population-level DALYs in females in China and the impact of screening as well as applying local DWs. Methods Using multisource data, a prevalence-based model was constructed. (1) Overall years lived with disability (YLDs) were estimated by using numbers...

Genome-wide identification, new classification, expression analysis and screening of drought & heat resistance related candidates in the RING zinc finger gene family of bread wheat (Triticum aestivum L.)

Yongliang Li, Pai Qin, Aolong Sun, Wenjun Xiao, Fenglin Chen, Yang He, Keyao Yu, You Li, Meng Zhang & Xinhong Guo
Abstract Background RING (Really Interesting New Gene) zinc finger (RING-zf) proteins belong to an important subclass of zinc fingers superfamily, which play versatile roles during various developmental stages and in abiotic stress responses. Based on the conserved cysteine and histidine residues, the RING-zf domains are classified into RING-HC (C3HC4), RING-H2 (C3H2C3), RING-v, RING-D, RING-S/T, RING-G, and RING-C2. However, little is known about the function of the RING-zfs of wheat. Results In this study, 129 (93.5%)...

Predictive worth of estimated glucose disposal rate: evaluation in patients with non-ST-segment elevation acute coronary syndrome and non-diabetic patients after percutaneous coronary intervention

Chi Liu, Xiaoli Liu, Xiaoteng Ma, Yujing Cheng, Yan Sun, Dai Zhang, Qi Zhao & Yujie Zhou
Abstract Background Measurement of estimated glucose disposal rate (eGDR) has been demonstrated to be an indicator of insulin resistance (IR) and a risk sign for long-term outcomes in those with ischemic heart disease and type 2 diabetes mellitus (T2DM) having coronary artery bypass grafting (CABG). After elective percutaneous coronary intervention (PCI), the usefulness of eGDR for prognosis in those with non-ST-segment elevation acute coronary syndrome (NSTE-ACS) and non-diabetes is yet unknown. Methods 1510 NSTE-ACS patients...

Associations between inflammatory bowel disease, social isolation, and mortality: evidence from a longitudinal cohort study

Jie Chen, Jiawei Geng, Jiayi Wang, Zhenhua Wu, Tian Fu, Yuhao Sun, Xuejie Chen, Xiaoyan Wang & Therese Hesketh
Background:Social well-being of patients with inflammatory bowel disease (IBD) is garnering increased attention; however, the impact of social isolation remained poorly understood.Objectives:We investigated the joint association of social isolation and IBD with premature deaths to articulate the profound impact of social isolation in IBD prognosis.Design:Longitudinal cohort study.Methods:We leveraged data of 486,014 participants from UK Biobank (including 5791 with IBD), the mean follow-up was 11.84 years. Diagnoses of IBD and its subtypes of Crohn’s disease (CD)...

Clostridium subterminale infection in a patient with diffuse large B-cell lymphoma and haemophagocytic syndrome: A case report and literature review

Ying Zhou, Sheng Wang & Xing-bei Weng
Although uncommon, infection caused by Clostridium subterminale may be life threatening particularly in immunocompromised patients. We report here a rare presentation of a patient with diffuse large B-cell lymphoma and haemophagocytic syndrome associated with C. subterminale bacteraemia. The management of the patient is described as well as a review of medical literature. Infection by Clostridium species, including C. subterminale, should be considered in a febrile patient with a haematologic malignancy. The case highlights the importance...

Homolytic aromatic substitution of acyl radicals: Oxidative coupling of 2-methylquinolines with quinoxalines

Xue Li, Xian Hao Wu, Jia Feng Yu, Yuan Yuan Zhang, Zhong Ke Hou & Yuan Yuan Xie
Oxidative coupling of 2-methylquinolines with quinoxalines via a TBHP (t-butyl hydroperoxide) and TFA (trifluoroacetic acid) mediated Minisci reaction affords quinolin-2-yl(quinoxalin-2-yl)methanone derivatives. This approach provides a simple and efficient method to construct various acyl derivatives in moderate to good yields (45%–92%) without any metal catalyst. Mechanistically, homolytic aromatic substitution (HAS) of acyl radicals mediated by TBHP is crucial for the construction of the quinolin-2-yl(quinoxalin-2-yl)methanone products.

Cardiac-targeted PIASy gene silencing mediates deSUMOylation of caveolin-3 and prevents ischemia/reperfusion-induced Nav1.5 downregulation and ventricular arrhythmias

Chen-Chen Hu, Xin Wei, Jin-Min Liu, Lin-Lin Han, Cheng-Kun Xia, Jing Wu, Tao You, A.-Fang Zhu, Shang-Long Yao, Shi-Ying Yuan, Hao-Dong Xu, Zheng-Yuan Xia, Ting-Ting Wang & Wei-Ke Mao
Abstract Background Abnormal myocardial Nav1.5 expression and function cause lethal ventricular arrhythmias during myocardial ischemia–reperfusion (I/R). Protein inhibitor of activated STAT Y (PIASy)-mediated caveolin-3 (Cav-3) SUMO modification affects Cav-3 binding to the voltage-gated sodium channel 1.5 (Nav1.5). PIASy activity is increased after myocardial I/R, but it is unclear whether this is attributable to plasma membrane Nav1.5 downregulation and ventricular arrhythmias. Methods Using recombinant adeno-associated virus subtype 9 (AAV9), rat cardiac PIASy was silenced using intraventricular...

Automated total and vessel-specific coronary artery calcium (CAC) quantification on chest CT: direct comparison with CAC scoring on non-contrast cardiac CT

Jie Yu, Lijuan Qian, Wengang Sun, Zhuang Nie, DanDan Zheng, Ping Han, Heshui Shi, Chuansheng Zheng & Fan Yang
Abstract Background This study aimed to evaluate the artificial intelligence (AI)-based coronary artery calcium (CAC) quantification and regional distribution of CAC on non-gated chest CT, using standard electrocardiograph (ECG)-gated CAC scoring as the reference. Methods In this retrospective study, a total of 405 patients underwent non-gated chest CT and standard ECG-gated cardiac CT. An AI-based algorithm was used for automated CAC scoring on chest CT, and Agatston score on cardiac CT was manually quantified. Bland-Altman...

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  • 2023
  • 2022
  • 2021
  • 2020
  • 2017

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  • West China Hospital of Sichuan University
  • Chinese Academy of Medical Sciences & Peking Union Medical College
  • Sichuan University
  • Zhejiang University
  • Shanghai Jiao Tong University
  • Fudan University
  • Capital Medical University
  • Nanjing Medical University
  • Chinese Academy of Sciences
  • Huazhong University of Science and Technology