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Method for the extraction of circulating nucleic acids based on MOF reveals cell-free RNA signatures in liver cancer

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National Science Review 2024年第1期11卷 94-106页

作者： Yuqing Sun Haixin Yu Shaoqing Han ruoxi ran Ying Yang Yongling Tang Yuhao Wang Wenhao Zhang Heng Tang Boqiao Fu Boshi Fu Xiaocheng Weng Song-Mei Liu Hexiang Deng Shuang Peng Xiang Zhou College of Chemistry and Molecular Sciences Key Laboratory of Biomedical Polymers-Ministry of Education Wuhan University Department of Digestive Surgical Oncology Union Hospital Tongji Medical College Huazhong University of Science and Technology Cancer Center Union HospitalTongji Medical CollegeHuazhong University of Science and Technology Department of Clinical Laboratory Center for Gene Diagnosis and Program of Clinical Laboratory Zhongnan Hospital of Wuhan University College of Chemistry and Materials Science Hubei Engineering University Department of Pharmacology School of Pharmacy China Medical University Taikang Center for Life and Medical Sciences Wuhan University Department of Hematology Zhongnan Hospital of Wuhan University

Cell-free RNA(cf RNA) allows assessment of health, status, and phenotype of a variety of human organs and is a potential biomarker to non-invasively diagnose numerous diseases. Nevertheless, there is a lack of highly efficient and bias-free cf RNA isolation technologies due to the low abundance and instability of cf ***, we developed a reproducible and high-efficiency isolation technology for different types of cell-free nucleic acids(containing cf RNA and viral RNA) in serum/plasma based on the inclusion of nucleic acids by metal-organic framework(MOF) materials, which greatly improved the isolation efficiency and was able to preserve RNA integrity compared with the most widely used research kit method. Importantly, the quality of cf RNA extracted by the MOF method is about 10-fold that of the kit method, and the MOF method isolates more than three times as many different RNA types as the kit method. The whole transcriptome mapping characteristics of cf RNA in serum from patients with liver cancer was described and a cf RNA signature with six cf RNAs was identified to diagnose liver cancer with high diagnostic efficiency(area under curve = 0.905 in the independent validation cohort) using this MOF method. Thus, this new MOF isolation technique will advance the field of liquid biopsy, with the potential to diagnose liver cancer.

关键词： MOF circulating cell-free RNA biomarker liver cancer diagnosis

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Differences in vascular endothelial function and serum proteome between obese people with phlegm-dampness constitution and balanced constitution

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Journal of Traditional Chinese Medicine 2024年第1期44卷 188-196页

作者： ZHU Linghui SUN Ziwei GUAN Yuanyuan LIU Meiyi ZHENG Yi YU ruoxi WANG Qi LI Lingru School of Chinese Medicine Beijing University of Chinese MedicineBeijing 102488China National Institute of TCM Constitution and Preventive Medicine Beijing University of Chinese MedicineBeijing 100029China

OBJECTIVE:To evaluate the extent of vascular endothelial dysfunction and preliminary identify serum protein biomarkers associated with obese individuals at risk for cardiovascular disease(CVD).METHODS:Fifteen obese volunteers with the phlegmdampness constitution or balanced constitution were recruited for this study *** clinical baseline data was collected,and the vascular endothelial function was evaluated using the EndoPAT?.Blood samples were collected for the serum proteome *** differences in the serum protein expression levels between the two groups were detected and the protein interaction network analysis,correlation analysis,receiver operating characteristic(ROC)curve analysis,and random forest model investigation were ***:There were no statistical differences found in the baseline *** vascular endothelial function,the reactive hyperemia index(RHI)of the phlegm-dampness constitution obese group was significantly lower than that of the balanced constitution obese group(1.46±0.30 vs 2.82±0.78,P<0.0001),indicating vascular endothelial *** are 66 differentially expressed serum proteins between the two *** A2(Apo A2),angiotensin-converting enzyme 2(ACE-2),interleukin-33(IL-33),and forkhead box P3(FoxP3)showed significant differences and area under curve values of their ROC curves were greater than 0.7 and correlated significantly with ***:Vascular endothelial dysfunction was present in the phlegm-dampness constitution obese ***,alterations in the expression levels of key serum proteins,including Apo A2,ACE-2,IL-33,and Fox P3 could serve as potential biomarkers in the obese population at risk of CVD.

关键词： obesity phlegm-dampness constitution vascular endothelial function proteome reactive hyperemia index

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Microalgae-based drug delivery system for tumor microenvironment photo-modulating and synergistic chemo-photodynamic therapy of osteosarcoma

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Engineered Regeneration 2024年第2期5卷 199-209页

作者： Feng Liang Xueying An ruoxi Wang Wenshu Wu Lin Yang Yixin Zheng Qing Jiang Xingquan Xu Danni Zhong Min Zhou Eye Center The Second Affiliated HospitalZhejiang University School of MedicineHangzhou310000PR China Department of Orthopedics The First Affiliated HospitalZhejiang University School of MedicineHangzhou310000PR China State Key Laboratory of Pharmaceutical Biotechnology Division of Sports Medicine and Adult Reconstructive SurgeryDepartment of Orthopedic SurgeryNanjing Drum Tower HospitalThe Affiliated Hospital of Nanjing University Medical SchoolNanjing210008PR China Zhejiang University-University of Edinburgh Institute(ZJU-UoE Institute) Zhejiang University School of MedicineZhejiang UniversityHaining314400PR China State Key Laboratory of Pharmaceutical Biotechnology Division of Sports Medicine and Adult Reconstructive SurgeryDepartment of Orthopedic SurgeryNanjing Drum Tower HospitalClinical College of Nanjing Medical UniversityNanjing210008PR China Institute of Translational Medicine Zhejiang UniversityHangzhou310029PR China Zhejiang University-Ordos City Etuoke Banner Joint Research Center Zhejiang UniversityHaining314400PR China

Osteosarcoma(OS)is one of the most common malignant tumors in children and young *** chemotherapy and other therapies are limited by low therapeutic efficiency,severe side effects and single therapeutic function,it is of high value to develop innovative therapies for precise and efficient treatment of ***,natural photo-synthetic microalgae(***,CV)were utilized as carriers for the chemotherapeutic agent doxorubicin(DOX)to create a multifunctional therapeutic platform(CV@DOX)for the photo-modulation of the tumor microenvi-ronment(TME)and synergistic chemo-photodynamic therapy of ***@DOX exhibited rapid drug release behavior in the acidic TME,improving the efficiency of chemotherapy against tumors and reducing side effects on other normal *** 650 nm laser irradiation,CV@DOX demonstrated the ability to effectively generate oxygen to alleviate tumor hypoxia and utilize the photosensitizing properties of chlorophyll in CV to produce an increased amount of reactive oxygen species(ROS),thereby enhancing photodynamic therapy(PDT).CV@DOX-mediated synergistic chemo-photodynamic therapy demonstrated efficacy in halting tumor progression in an orthotopic osteosarcoma mouse model by promoting tumor cell apoptosis,inhibiting tumor proliferation and ***,chlorophyll-assisted fluorescence imaging enabled monitoring of the distribution of CV@DOX in osteosarcoma after ***,CV@DOX did not cause significant hematological and tissue toxicity,and prevented DOX-induced cardiotoxicity,showing good in vivo ***,this work presents a novel TME-responsive and TME-modulating platform for imaging-guided multimodal osteosar-coma treatment.

关键词： Osteosarcoma Tumor hypoxia Photodynamic Chemotherapy Synergistic therapy

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Influenza and pneumococcal vaccination coverage and associated factors in patients hospitalized with acute exacerbations of COPD in China:Findings from real-world data

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Chinese Medical Journal 2024年第10期137卷 1179-1189页

作者： ruoxi He Xiaoxia Ren Ke Huang Jieping Lei Hongtao Niu Wei Li Fen Dong Baicun Li Ye Wang Ting Yang Chen Wang School of Population Medicine and Public Health Chinese Academy of Medical Sciences and Peking Union Medical CollegeBeijing 100730China Department of Respiratory Medicine National Key Clinical SpecialtyBranch of National Clinical Research Center for Respiratory DiseaseXiangya HospitalCentral South UniversityChangshaHunan 410008China Department of Pulmonary and Critical Care Medicine Center of Respiratory MedicineChina-Japan Friendship HospitalBeijing 100029China Institute of Respiratory Medicine Chinese Academy of Medical SciencesBeijing 100029China National Center for Respiratory Medicine Beijing 100029China National Clinical Research Center for Respiratory Diseases Beijing 100029China Department of Clinical Research and Data Management Center of Respiratory MedicineChina-Japan Friendship HospitalBeijing 100029China

Background:Influenza and pneumococcal vaccination are a priority in patients with chronic obstructive pulmonary disease(COPD).However,limited information is available on vaccination coverage among patients with acute exacerbations of COPD(AECOPD)in *** study aimed to determine the rates and associated factors of influenza and pneumococcal vaccination in patients hospitalized with ***:Baseline data from a national,multicenter,hospital-based study that included adult inpatients with AECOPD between 2017 and 2021 were *** outcomes of interest were the influenza vaccination in the past year and the pneumococcal vaccination in the past 5 *** ensure national representativeness,rates were weighted according to the distribution of hospital levels and types enrolled in this *** Poisson regression based on mixed-effects models were used to determine the associated *** independent variables included the region and hospital features where the participants were located,sociodemographic characteristics(age,sex,rural/urban residence,education,etc.),and clinical indicators(COPD disease history,lung function parameters,comorbidities,etc.).The treatment profiles of the vaccinated and unvaccinated participants were ***:Of 6949 eligible participants,the weighted rates of influenza/pneumococcal,influenza,and pneumococcal vaccination were 2.72%(95%confidence interval[CI]:2.34%-3.10%),2.09%(95%CI:1.76%-2.43%),and 1.25%(95%CI:0.99%-1.51%),*** multivariable models,age≥60 years(60-69 years,odds ratio[OR]:1.90,95%CI:1.11-3.25;≥80 years,OR:2.00,95%CI:1.06-3.78),geographical regions(Northern China relative to Eastern China,OR:5.09,95%CI:1.96-13.21),urban residence(OR:1.69,95%CI:1.07-2.66),a higher education level(junior high school,OR:1.77,95%CI:1.21-2.58;senior high school or above,OR:2.61,95%CI:1.69-4.03),former smoking(OR:1.79,95%CI:1.15-2.79),and regular inhaled medication treatment(OR:3.28,95%CI:2.29-4.70)were

关键词： Chronic obstructive pulmonary disease Influenza Pneumococcal Vaccine AECOPD

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“大中衔接期”如何为青少年拔尖人才做指导?——以4所示范性高中的田野研究为例

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中国青年研究 2024年第8期 41-49页

作者：丁若曦上海师范大学国际与比较教育研究院联合国教科文组织教师教育中心

高中是青少年拔尖人才发展的重要阶段。目前,学术界对大学-高中衔接期学生发展指导的层次机制与形式机制研究较多,但对于如何通过指导赋能发展的功能机制与路径方式关注不足。本文采用质性研究范式,以某一线城市的4所示范性高中为田野现... 详细信息

高中是青少年拔尖人才发展的重要阶段。目前,学术界对大学-高中衔接期学生发展指导的层次机制与形式机制研究较多,但对于如何通过指导赋能发展的功能机制与路径方式关注不足。本文采用质性研究范式,以某一线城市的4所示范性高中为田野现场,采集了聚焦于个人经历的54份研究资料进行深度分析。研究发现:基于4所示范性高中教师多年指导经验,初步形成了面向青少年拔尖人才发展的指导赋能路径;根据学生发展状态,形成了面向坚持性、保护性、自洽性三类群体的个性化指导方式,主动构建了拔尖人才成长的良好生态。本文的研究结果可为拔尖人才培养的个性化大中衔接方案设计提供理论支撑。

关键词：青少年发展拔尖人才培养大中衔接学生指导

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药品微生物检测实验室质量管理的要点分析

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现代药物与临床 2024年第6期39卷 1620-1624页

作者：叶笑颜若曦国家药品监督管理局食品药品审核查验中心北京100076

药品微生物检测实验室是药品生产企业质量控制的核心内容之一,其质量管理存在较大特殊性,因此从人员、设备、检测相关物料、检测方法、设施环境、检测数据方面对药品微生物检测实验室质量管理的要点、典型性缺陷举例分析,为药品生产企... 详细信息

药品微生物检测实验室是药品生产企业质量控制的核心内容之一,其质量管理存在较大特殊性,因此从人员、设备、检测相关物料、检测方法、设施环境、检测数据方面对药品微生物检测实验室质量管理的要点、典型性缺陷举例分析,为药品生产企业、药品检测机构提供参考借鉴。

关键词：药品微生物检测实验室质量管理人员设备检测相关物料检测方法设施环境检测数据

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《史记·仓公列传》所见西汉医学新探

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中华医史杂志 2024年第2期54卷 125-128,F0003页

作者：郑若羲顾漫中国中医科学院中国医史文献研究所北京100700

《史记·仓公列传》中详细记载了仓公所诊治的26则医案,结合出土和传世医学文献,可以共同勾勒西汉前期的医学概貌。《史记·仓公列传》中记载的医学传承,是以医书的传承为线索的,可见今本《黄帝内经》成书前的秦汉时期,确实流传着《脉... 详细信息

《史记·仓公列传》中详细记载了仓公所诊治的26则医案,结合出土和传世医学文献,可以共同勾勒西汉前期的医学概貌。《史记·仓公列传》中记载的医学传承,是以医书的传承为线索的,可见今本《黄帝内经》成书前的秦汉时期,确实流传着《脉经》《五色》等古医书。从藏象理论、五脏脉诊和疾病辨识3个方面分析西汉前期的医学,可知当时五脏理论已具备一定的系统性,形成了体内五脏与体表、外在环境相通的思想。在诊断疾病中,先通过脉诊审察是否为五脏疾病,再进一步辨别疾病、决断死生,也是以五脏为核心的观念的体现。对疾病的认识以经脉疾病为起点,但也存在着不能反应于脉象、需根据症状辨别的疾病。

关键词：《仓公列传》仓公淳于意西汉医学

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基于土壤PAHs形态的老化效应与生物有效性研究

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环境科学与技术 2024年第1期47卷 132-138页

作者：汪青徐若曦李俊黄灿安徽师范大学地理与旅游学院安徽芜湖241003 江淮流域地表过程与区域响应安徽省重点实验室安徽芜湖241003

土壤多环芳烃(PAHs)不同提取形态可为理解老化效应机理和评估生物有效性提供新的视角,文章选用芜湖市4种不同类型农业土壤,通过连续提取方法将土壤PAHs划分为3种可提取形态,在此基础上探究PAHs在土壤中的老化效应与生物有效性。结果表明... 详细信息

土壤多环芳烃(PAHs)不同提取形态可为理解老化效应机理和评估生物有效性提供新的视角,文章选用芜湖市4种不同类型农业土壤,通过连续提取方法将土壤PAHs划分为3种可提取形态,在此基础上探究PAHs在土壤中的老化效应与生物有效性。结果表明,在4种农业土壤中PAHs含量均表现出慢解吸态>快解吸态>水溶态的特征。在外源PAHs进入土壤的第0天,慢解吸态占比就已达到55.61%±21.59%,有机质含量最低的土壤中,第0天慢解吸态比例明显小于其他土壤,说明这部分“快吸附、慢解吸”的PAHs是与有机质密切联系的。随着外源PAHs在土壤中老化时间的延长,慢解吸态持续增加至第90天的75.57%±7.43%,而水溶态和快解吸态分别从11.20%±4.25%和33.19%±20.24%下降至0.89%±0.21%和1.51%±1.11%,质量平衡计算得出的不可提取态则达到22.0%±6.8%,表明PAHs在土壤中老化效应实质上是从水溶态和快解吸态向慢解吸态乃至不可提取态转化的过程。这种转化过程的动力学可以用一阶指数模型很好地模拟。不同提取形态PAHs中,水溶态含量与蚯蚓富集实验得出的土壤PAHs生物富集系数相关性最强(R=0.84,P<0.01),表明水溶态PAHs可以作为评价土壤PAHs生物有效性的替代指标。

关键词：多环芳烃提取形态老化效应蚯蚓生物有效性

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壳寡糖交联明胶可生物降解薄膜的制备与性能研究

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食品工业科技 2024年第13期45卷 1-8页

作者：刘桂艳王贝杨若熙秦中立武汉华夏理工学院生物与制药工程学院湖北武汉430223 湖北科技学院电子与信息工程学院湖北咸宁437100

目的:研究壳寡糖改性对明胶基薄膜性能的影响。方法:以废猪皮中提取明胶为基质,以壳寡糖和聚乙烯醇为改性交联剂,制备得到了明胶基薄膜。利用红外光谱、X射线衍射、扫描电子显微镜、分光光度法、拉力试验测试法对其结构和力学性能进行... 详细信息

目的:研究壳寡糖改性对明胶基薄膜性能的影响。方法:以废猪皮中提取明胶为基质,以壳寡糖和聚乙烯醇为改性交联剂,制备得到了明胶基薄膜。利用红外光谱、X射线衍射、扫描电子显微镜、分光光度法、拉力试验测试法对其结构和力学性能进行了测定,并测试了明胶基薄膜在抗氧化、抗菌、水稳定性和生物降解方面的性能。结果:交联改性后明胶薄膜的力学性能得到显著提升,断裂应力最高可达37.09 MPa,最大撕裂能为56.71 kJ/m^(2),且浸泡于水中48 h仍能维持良好的物理形态,此外,薄膜还拥有优异透光性(最大可达92.32%),良好抗氧化性(自由基的清除率最高可达75.12%),优异抗菌性和生物降解性(完全降解时间<45 h)。结论:壳寡糖改性一定程度上改善了明胶基薄膜的力学性能和生物降解性能,赋予了薄膜良好抗菌性和抗氧化能力,表明其在食品包装上存在较大潜在应用价值。

关键词：明胶壳寡糖交联可生物降解薄膜性能

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检测HBV感染者外周血EB病毒载量的临床意义

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临床肝胆病杂志 2019年第4期35卷 769-773页

作者：冉若曦肖梦瑶黎安玲刘松梅武汉大学中南医院检验科武汉430071 武汉大学中南医院基因诊断中心武汉430071 武汉大学中南医院检验系武汉430071

目的探讨HBV与EB病毒(EBV)重叠感染在HBV相关性肝病[慢性乙型肝炎(CHB)、肝硬化、肝细胞癌(HCC)]中的意义。方法对2016年5月-2018年8月在武汉大学中南医院确诊的487例HBV感染者的临床资料进行回顾性分析,合并EBV感染者194例(39. 8%)。... 详细信息

目的探讨HBV与EB病毒(EBV)重叠感染在HBV相关性肝病[慢性乙型肝炎(CHB)、肝硬化、肝细胞癌(HCC)]中的意义。方法对2016年5月-2018年8月在武汉大学中南医院确诊的487例HBV感染者的临床资料进行回顾性分析,合并EBV感染者194例(39. 8%)。分别按照EBV DNA拷贝数(≥400 IU/ml)、肝功能Child-Pugh分级(A、B、C级)及肝病进程分组(CHB组、肝硬化组、HCC组),比较组间的临床指标差异。正态分布的计量资料2组间比较采用t检验,多组间比较采用方差分析,进一步两两比较采用LSD-t检验;非正态分布的计量资料多组间比较采用Kruskal-Wallis H非参数检验,进一步两两比较采用DunnBonferroni检验;计数资料组间比较采用χ~2检验。结果 HBV DNA拷贝数在CHB组患者中高于肝硬化和HCC患者,差异均有统计学意义(t=2. 417,P=0. 017; t=3. 258,P=0. 001),而EBV DNA拷贝数在HCC患者中有高于CHB和肝硬化患者的趋势,但3组间差异无统计学意义(F=1. 161,P=0. 315); Child-Pugh分级排除肝功能影响后,A级患者HCC组EBV DNA拷贝数高于CHB和肝硬化组(t=2. 062,P=0. 041; t=2. 615,P=0. 010),C级患者肝硬化组EBV DNA拷贝数高于CHB组(t=2. 647,P=0. 072)。双重感染特异性临床变化指标有ALT/AST、Glb、淋巴细胞百分数。结论 HCC患者EBV载量升高,可能与HBV共同参与了肝脏疾病的进展,动态定量检测HBV感染者EBV DNA对早期干预肝病进展有一定指导意义。

关键词：肝炎病毒,乙型疱疹病毒4型,人病毒载量

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