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Characterization of acute-on-chronic liver diseases: A multicenter prospective cohort study

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World Journal of Hepatology 2024年第5期16卷 809-821页

作者： Yuan-Yao Zhang sen luo Hai Li Shu-Ning Sun Xian-Bo Wang Xin Zheng Yan Huang Bei-Ling Li Yan-Hang Gao Zhi-Ping Qian Feng Liu Xiao-Bo Lu Jun-Ping Liu Hao-Tang Ren Yu-Bao Zheng Hua-Dong Yan Guo-Hong Deng Liang Qiao Yan Zhang Wen-Yi Gu Xiao-Mei Xiang Yi Zhou Yi-Xin Hou Qun Zhang Yan Xiong Cong-Cong Zou Jun Chen Ze-Bing Huang Xiu-Hua Jiang Ting-Ting Qi Yuan-Yuan Chen Na Gao Chun-Yan Liu Wei Yuan Xue Mei Jing Li Tao Li Rong-Jiong Zheng Xin-Yi Zhou Jun Zhao Zhong-Ji Meng Department of Infectious Disease Institute of Biomedical ResearchRegulatory Mechanism and Targeted Therapy for Liver Cancer Shiyan Key LaboratoryHubei provincial Clinical Research Center for Precise Diagnosis and Treatment of Liver CancerTaihe HospitalHubei University of MedicineShiyan 442000Hubei ProvinceChina Department of Gastroenterology Renji HospitalSchool of MedicineShanghai Jiao Tong UniversityShanghai 200120China Department of Infectious Diseases Southwest HospitalThe Third Military Medical University(Army Medical University)Chongqing 400000China Center of Integrative Medicine Beijing Ditan HospitalCapital Medical UniversityBeijing 100020China Department of Infectious Diseases Institute of Infection and ImmunologyUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhan 430020Hubei ProvinceChina Department of Infectious Diseases Hunan Key Laboratory of Viral HepatitisXiangya HospitalCentral South UniversityChangsha 110051Hunan ProvinceChina Hepatology Unit Department of Infectious DiseasesNanfang HospitalSouthern Medical UniversityGuangzhou 510515Guangdong ProvinceChina Department of Hepatology The First Hospital of Jilin UniversityChangchun 130021Jilin ProvinceChina Department of Liver Intensive Care Unit Shanghai Public Health Clinical CentreFudan UniversityShanghai 200093China Tianjin Institute of Hepatology Nankai University Second People's HospitalTianjin 300192China Infectious Disease Center The First Affiliated Hospital of Xinjiang Medical UniversityUrumqi 830054Xinjiang Uygur Autonomous RegionChina Department of Infectious Diseases and Hepatology The Second Hospital of Shandong UniversityJinan 250000Shandong ProvinceChina State Key Laboratory for Diagnosis and Treatment of Infectious Diseases Collaborative Innovation Center for Diagnosis and Treatment of Infectious DiseaseThe First Affiliated HospitalZhejiang University School of MedicineHangzhou 310000Zhejiang ProvinceChina Department of Infectious Diseases The Thir

BACKGROUND Acute-on-chronic liver disease(AoCLD)accounts for the majority of patients hospitalized in the Department of Hepatology or Infectious Diseases.AIM To explore the characterization of AoCLD to provide theoretical guidance for the accurate diagnosis and prognosis of AoCLD.METHODS Patients with AoCLD from the Chinese Acute-on-Chronic Liver Failure(ACLF)study cohort were included in this study.The clinical characteristics and outcomes,and the 90-d survival rate associated with each clinical type of AoCLD were analyzed,using the Kaplan-Meier method and the log-rank test.RESULTS A total of 3375 patients with AoCLD were enrolled,including 1679(49.7%)patients with liver cirrhosis acute decompensation(LC-AD),850(25.2%)patients with ACLF,577(17.1%)patients with chronic hepatitis acute exacer-bation(CHAE),and 269(8.0%)patients with liver cirrhosis active phase(LC-A).The most common cause of chronic liver disease(CLD)was HBV infection(71.4%).The most common precipitants of AoCLD was bacterial infection(22.8%).The 90-d mortality rates of each clinical subtype of AoCLD were 43.4%(232/535)for type-C ACLF,36.0%(36/100)for type-B ACLF,27.0%(58/215)for type-A ACLF,9.0%(151/1679)for LC-AD,3.0%(8/269)for LC-A,and 1.2%(7/577)for CHAE.CONCLUSION HBV infection is the main cause of CLD,and bacterial infection is the main precipitant of AoCLD.The most common clinical type of AoCLD is LC-AD.Early diagnosis and timely intervention are needed to reduce the mortality of patients with LC-AD or ACLF.

关键词： Acute-on-chronic liver disease Acute-on-chronic liver failure Liver cirrhosis Clinical features Prognosis

Identifying RNA Modifications by Direct RNA Sequencing Reveals Complexity of Epitranscriptomic Dynamics in Rice

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Genomics, Proteomics & Bioinformatics 2023年第4期21卷 788-804页

作者： Feng Yu Huanhuan Qi Li Gao sen luo Rebecca Njeri Damaris Yinggen Ke Wenhua Wu Pingfang Yang State Key Laboratory of Biocatalysis and Enzyme Engineering School of Life SciencesHubei UniversityWuhan 430062China

Transcriptome analysis based on high-throughput sequencing of a cDNA library has been widely applied to functional genomic studies.However,the cDNA dependence of most RNA sequencing techniques constrains their ability to detect base modifications on RNA,which is an important element for the post-transcriptional regulation of gene expression.To comprehensively profile the N^(6)-methyladenosine(m^(6)A)and N^(5)-methylcytosine(m5 C)modifications on RNA,direct RNA sequencing(DRS)using the latest Oxford Nanopore Technology was applied to analyze the transcriptome of six tissues in rice.Approximately 94 million reads were generated,with an average length ranging from 619 nt to 1013 nt,and a total of 45,707 transcripts across 34,763 genes were detected.Expression profiles of transcripts at the isoform level were quantified among tissues.Transcriptome-wide mapping of m^(6)A and m5 C demonstrated that both modifications exhibited tissue-specific characteristics.The transcripts with m^(6)A modifications tended to be modified by m5 C,and the transcripts with modifications presented higher expression levels along with shorter poly(A)tails than transcripts without modifications,suggesting the complexity of gene expression regulation.Gene Ontology analysis demonstrated that m^(6)A-and m5 C-modified transcripts were involved in central metabolic pathways related to the life cycle,with modifications on the target genes selected in a tissue-specific manner.Furthermore,most modified sites were located within quantitative trait loci that control important agronomic traits,highlighting the value of cloning functional loci.The results provide new insights into the expression regulation complexity and data resource of the transcriptome and epitranscriptome,improving our understanding of the rice genome.

关键词： Direct RNA sequencing Polyadenylated transcriptome N6-methyladenosine N5-methylcytosine Rice

Numerical simulation of macrosegregation in continuously cast gear steel 20CrMnTi with final electromagnetic stirring

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Journal of Iron and Steel Research(International) 2021年第4期28卷 424-436页

作者： Sheng-kui Yin sen luo Wen-jie Zhang Wei-ling Wang Miao-yong Zhu Key Laboratory for Ecological Metallurgy of Multimetallic Mineral(Ministry of Education) Northeastern UniversityShenyang 110819LiaoningChina School of Metallurgy Northeastern UniversityShenyang 110819LiaoningChina

A 3D/2D hybrid multi-physical-field mathematical model,which takes into consideration the thermosolutal buoyance,was developed to predict the macrosegregation of gear steel 20CrMnTi continuously cast by a curved billet caster with size of 160 mm×160 mm,and investigated the effect of final electromagnetic stirring(F-EMS)on the fluid flow,heat transfer and solute distribution in the liquid core of continuously cast steel.The results show that the application of F-EMS eliminates the effect of thermosolutal buoyancy on the asymmetric distribution of carbon concentration in the cross section of billet and accelerates the final solidification of resident molten steel in the liquid core of strand,but promotes the negative carbon segregation near the billet center.When the gear steel 20CrMnTi is cast at the temperature of 1803 K and speed of 1.7 m/min,the solidification end advances forward from 9.84 to 9.72 m,and center carbon segregation ratio of billet decreases from 1.24 to 1.17 with the increase in current density of F-EMS from 0 to 350 A.

关键词： Gear steel Macrosegregation Final electromagnetic stirring Numerical simulation Continuous casting

Heat Transfer and Central Segregation of Continuously Cast High Carbon Steel Billet

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Journal of Iron and Steel Research(International) 2014年第6期21卷 565-574页

作者： Wang SU Wei-ling WANG sen luo Dong-bin JIANG Miao-yong ZHU School of Materials and Metallurgy Northeastern University

A numerical model of heat transfer was developed to investigate the heat transfer of continuously cast billet with the aid of surface temperature tests by ThermaCAMTM researcher and nail shooting experiments. The effects of secondary cooling practice and casting speed on the solidification process and central segregation of carbon were investigated as well with the actual central segregation tests. The results show that the surface center and billet center temperatures exhibit a different pattern during solidification, and the solidified shell thickness is presented as an ＂S＂ type. With the increase of secondary cooling intensity and the decrease of casting speed, the end points of the solidus line and the liquidus line move forward, and the central segregation level of carbon decreases. The optimal casting condition is suggested for continuously cast high carbon billet with F-EMS （final electromagnetic stirring）.

关键词： continuously cast billeti high carbon steel heat transfer central segregation

Numerical Simulation and Experimental Study of F-EMS for Continuously Cast Billet of High Carbon Steel

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Journal of Iron and Steel Research(International) 2014年第S1期21卷 51-55页

作者： sen luo Feng-yun PIAO Dong-bin JIANG Wei-ling WANG Miao-yong ZHU School of Materials and Metallurgy Northeastern University

A final electromagnetic stirring model was developed for billet continuous casting of high carbon steel using the commercial software ANSYS and CFX, and the numerical model was validated by the magnetic flux density measured under a Teslameter CT-3. The magnetic flux density and fluid flow in the liquid pool at the location of final electromagnetic stirring(F-EMS) were calculated by the present numerical model. Meanwhile, the plant trials were carried out to determine the optimum current intensity and frequency of F-EMS for the continuously cast billet of high carbon steel. The numerical results show that, through increasing the current intensity by 100 A, the corresponding increases of magnetic induction intensity, tangential electromagnetic force and flow velocity at the solid/liquid interface in the strand are 0.025 T, 1933 N/m3 and 6.9 cm/s, respectively. Moreover, the industrial trial results showed that for the continuously cast billet of 60 steel, the optimum current intensity and frequency of F-EMS, which is 8.2 m from the meniscus, are respectively 380 A and 6 Hz. With the optimum F-EMS parameters, the significant improvement of center segregation of billet is achieved, and the center carbon segregation index in billet reaches 1.04.

关键词： billet F-EMS center segregation numerical simulation industrial trial

MRI R2^(*)值鉴别肝细胞癌与肝内肿块型胆管癌

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中国介入影像与治疗学 2024年第4期21卷 224-228页

作者：罗森黄洪磊江卫民严川李跃明福建医科大学附属南平第一医院影像科福建南平353000 福建医科大学附属第一医院影像科福建福州350005

目的观察MRI定量R2^(*)值鉴别肝细胞癌(HCC)与肝内肿块型胆管癌(IMCC)的价值。方法回顾性分析106例HCC(HCC组)及49例IMCC(IMCC组)患者临床和上腹部MRI(包括2D多回波快速梯度回波序列R2^(*)Map图像)资料,比较2组肿瘤R2^(*)值、T2^(*)值... 详细信息

目的观察MRI定量R2^(*)值鉴别肝细胞癌(HCC)与肝内肿块型胆管癌(IMCC)的价值。方法回顾性分析106例HCC(HCC组)及49例IMCC(IMCC组)患者临床和上腹部MRI(包括2D多回波快速梯度回波序列R2^(*)Map图像)资料,比较2组肿瘤R2^(*)值、T2^(*)值、表观弥散系数(ADC)值、肿瘤近旁及远旁肝实质R2^(*)值、竖脊肌R2^(*)值,以及肿瘤与肝实质R2^(*)比值(T/L-R2^(*))和肿瘤与竖脊肌R2^(*)比值(T/M-R2^(*));绘制受试者工作特征曲线,计算曲线下面积(AUC),比较各参数鉴别HCC与IMCC的效能。结果相比IMCC组,HCC组男性、甲胎蛋白≥9 ng/ml、伴肝硬化、有假包膜、瘤内出血、动脉晚期非环形强化及门静脉期非环形廓清者占比均较高,而淋巴结转移者占比较低(P均0.05)而均高于ADC值(P均<0.05)。肿瘤R2^(*)值的AUC为0.848;以25.79 Hz为最佳截断值,其鉴别HCC与IMCC的敏感度为77.36%、特异度为85.71%。结论MRI定量R2^(*)值可用于鉴别HCC与IMCC。

关键词：肝肿瘤铁磁共振成像

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New Algorithm Rules Out Acute-on-chronic Liver Failure Development within 28 Days from Acute Decompensation of Cirrhosis

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Journal of Clinical and Translational Hepatology 2023年第3期11卷 550-559页

作者： Xiaoting Tang Hai Li Guohong Deng Xin Zheng Xianbo Wang Yan Huang Yanhang Gao Zhongji Meng Zhiping Qian Feng Liu Xiaobo Lu Yu Shi Beiling Li Wenyi Gu Xiaomei Xiang Yan Xiong Yixin Hou Jun Chen Na Gao sen luo Liujuan Ji Jing Li Rongjiong Zheng Haotang Ren Jinjun Chen Hepatology Unit Department of Infectious DiseasesNanfang HospitalSouthern Medical UniversityGuangzhouGuangdongChina Department of Gastroenterology Ren Ji HospitalSchool of MedicineShanghai Jiao Tong UniversityShang-haiChina Shanghai Institute of Digestive Disease Key Laboratory of Gastroenterology and HepatologyChinese Ministry of Health(Shanghai Jiao Tong University)ShanghaiChina Department of Infectious Diseases Southwest HospitalThird Military Medical University(Army Medical University)ChongqingChina Department of Infectious Diseases Institute of Infection and ImmunologyUnion HospitalTongji Medical CollegeHuazhong University of Science and TechnologyWuhanHubeiChina Center of Integrative Medicine Beijing Ditan HospitalCapital Medical UniversityBeijingChina Department of Infectious Diseases Hunan Key Laboratory of Viral HepatitisXiangya HospitalCentral South UniversityChangshaHunanChina Department of Hepatology The First Hospital of Jilin UniversityChangchunJilinChina Department of Infectious Diseases Hubei Clinical Research Center for Precise Diagnosis and Treatment of Liver CancerTaihe HospitalHubei University of MedicineShiyanHubeiChina Department of Liver Intensive Care Unit Shanghai Public Health Clinical CenterFudan UniversityShanghaiChina Department of Infectious Diseases and Hepatology The Second Hospital of Shandong Univer-sityJinanShandongChina Infectious Disease Center The First Affiliated Hospital of Xinjiang Medical UniversityXinjiangChina The State Key Laboratory for Diagnosis and Treatment of Infectious Diseases The First Affiliated Hospital of School of MedicineZhejiang UniversityHangzhouZhejiangChina Collaborative Innovation Center for Diagnosis and Treatment of Infectious Disease HangzhouZhejiangChina National Clinical Research Center of Infectious Disease HangzhouZhejiangChina Hepatology Unit Zengcheng BranchNanfang HospitalSouthern Medical UniversityGuangzhouGuangdongChina.

Background and Aims:Approximately 10%of patients with acute decompensated(AD)cirrhosis develop acute-on-chronic liver failure(ACLF)within 28 days.Such cases have high mortality and are difficult to predict.Therefore,we aimed to establish and validate an algorithm to identify these patients on hospitalization.Methods:Hospitalized patients with AD who developed ACLF within 28 days were considered pre-ACLF.Organ dysfunction was defined accord-ing to the chronic liver failure-sequential organ failure as-sessment(CLIF-SOFA)criteria,and proven bacterial infec-tion was taken to indicate immune system dysfunction.A retrospective multicenter cohort and prospective one were used to derive and to validate the potential algorithm,re-spectively.A miss rate ofsent proven bacterial infection at admission were associated with the development of ACLF.AD patients with≥2 organ dysfunctions had a higher risk for pre-ACLF patients[odds ratio=16.58195%confidence interval:(4.271-64.363),p<0.001].In the derivation co-hort,67.5%of patients(454/673)had≤1 organ dysfunction and two patients(0.4%)were pre-ACLF,with a miss rate of 4.3%(missed/total,2/46).In the validation cohort,65.9%of patients(914/1388)had≤1 organ dysfunction,and four(0.3%)of them were pre-ACLF,with a miss rate of 3.4%(missed/total,4/117).Conclusions:AD patients with≤1 organ dysfunction had a significantly lower risk of developing ACLF within 28 days of admission and could be safely ruled out with a pre-ACLF miss rate of<5%.

关键词： Liver cirrhosis Prognosis Liver failure End-stage liver disease Organ dysfunction scores.

基于微分方程曲面求交跟踪法的包容式节点相贯区域建模研究

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中国工程机械学报 2024年第2期22卷 141-145页

作者：孙远韬罗森胡修齐王斌贺张氢同济大学机械与能源工程学院上海201804

包容式节点是一种新型管状相贯式节点,其形态是一种典型的薄壁自由曲面结构。在进行曲面造型过程中会涉及曲面求交的问题,而曲面求交是计算机辅助几何设计(CAGD)领域中的关键技术之一。本文构建了包容式节点非均匀有理B样条(NURBS)曲面... 详细信息

包容式节点是一种新型管状相贯式节点,其形态是一种典型的薄壁自由曲面结构。在进行曲面造型过程中会涉及曲面求交的问题,而曲面求交是计算机辅助几何设计(CAGD)领域中的关键技术之一。本文构建了包容式节点非均匀有理B样条(NURBS)曲面模型,将求包容式节点中的相贯线问题转化为NURBS曲面的求交问题。基于微分方程的跟踪算法原理,在分割法求得初始交点的基础上,采用微分方程追踪法求出所有交点,最后将所求得交点进行曲线拟合,交线包围区域即为包容式节点与腹杆相贯焊接区域。

关键词：包容式节点 NURBS模型曲面求交追踪法曲线拟合

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金果榄质量HPLC评价研究

中国新药杂志 2024年第4期33卷 400-406页

作者：陈帅袁崇均罗森汤依娜向缅周先建王笳杨玉霞四川省中医药科学院成都610041 中药材品质及创新中药研究四川省重点实验室成都610041

目的:建立同时测定金果榄药材中古伦宾、蜕皮激素和生物碱类成分的含量的方法,并寻找金果榄药材中的质量差异标志物。方法:采用HPLC法同时测定古伦宾、蜕皮激素、非洲防己碱、药根碱和巴马丁的含量,并以检测出的含量为指标,结合聚类分... 详细信息

目的:建立同时测定金果榄药材中古伦宾、蜕皮激素和生物碱类成分的含量的方法,并寻找金果榄药材中的质量差异标志物。方法:采用HPLC法同时测定古伦宾、蜕皮激素、非洲防己碱、药根碱和巴马丁的含量,并以检测出的含量为指标,结合聚类分析和偏最小二乘判别分析进一步确定金果榄药材中的质量差异标志物。结果:测定方法精密度、稳定性和重复性良好,聚类分析和偏最小二乘判别分析结果均显示20批样品可分为三大类,变量权重结果证实非洲防己碱、古伦宾、巴马汀为金果榄药材主要质量差异标志物。结论:所建方法利用DAD检测器特性,同时监测多个波长,方便快捷,能显著提高药材质量控制效率;聚类分析和偏最小二乘判别分析结果也可为金果榄药材种植、栽培提供依据。

关键词：金果榄古伦宾蜕皮激素非洲防己碱药根碱巴马丁聚类分析偏最小二乘判别分析