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Identification of FOXO1 as a geroprotector in human synovium through single-nucleus transcriptomic profiling

Protein & Cell 2024年第6期15卷 441-459页

作者： Feifei Liu yi lu Xuebao Wang Shuhui Sun Huize Pan Min Wang Zehua Wang Weiqi Zhang Shuai Ma guoqiang Sun qun Chu Si Wang Jing Qu guang-Hui Liu State Key Laboratory of Membrane Biology Institute of ZoologyChinese Academy of SciencesBeijing 100101China Sports Medicine Department Beijing Jishuitan HospitalCapital Medical UniversityBeijing 100035China State Key Laboratory of Stem Cell and Reproductive Biology Institute of ZoologyChinese Academy of SciencesBeijing 100101China University of Chinese Academy of Sciences Beijing 100049China Institute for Stem Cell and Regeneration Chinese Academy of SciencesBeijing 100101China Beijing Institute for Stem Cell and Regenerative Medicine Beijing 100101China National Laboratory of Biomacromolecules Institute of BiophysicsChinese Academy of SciencesBeijing 100101China Division of Life Sciences and Medicine School of Life SciencesUniversity of Science and Technology of ChinaHefei 230001China CAS Key Laboratory of Genomic and Precision Medicine Beijing Institute of GenomicsChinese Academy of Sciences and China National Center for BioinformationBeijing 100101China The Fifth People’s Hospital of Chongqing Chongqing 400062China Advanced Innovation Center for Human Brain Protection and National Clinical Research Center for Geriatric Disorders Xuanwu Hospital Capital Medical UniversityBeijing 100053China Aging Translational Medicine Center International Center for Aging and CancerBeijing Municipal Geriatric Medical Research CenterXuanwu HospitalCapital Medical UniversityBeijing 100053China

The synovium,a thin layer of tissue that is adjacent to the joints and secretes synovial fluid,undergoes changes in aging that contribute to intense shoulder pain and other joint ***,the mechanism underlying human synovial aging remains poorly ***,we generated a comprehensive transcriptomic profile of synovial cells present in the subacromial synovium from young and aged *** delineating aging-related transcriptomic changes across different cell types and their associated regulatory networks,we identified two subsets of mesenchymal stromal cells(MSCs)in human synovium,which are lining and sublining MSCs,and found that angiogenesis and fibrosis-associated genes were upregulated whereas genes associated with cell adhesion and cartilage development were downregulated in aged ***,the specific cell-cell communications in aged synovium mirrors that of aging-related inflammation and tissue remodeling,including vascular hyperplasia and tissue *** particular,we identified forkhead box O1(FOXO1)as one of the major regulons for aging differentially expressed genes(DEGs)in synovial MSCs,and validated its downregulation in both lining and sublining MSC populations of the aged *** human FOXO1-depleted MSCs derived from human embryonic stem cells,we recapitulated the senescent phenotype observed in the subacromial synovium of aged *** data indicate an important role of FOXO1 in the regulation of human synovial ***,our study improves our understanding of synovial aging during joint degeneration,thereby informing the development of novel intervention strategies aimed at rejuvenating the aged joint.

关键词： FOXO1 degeneration inflammation

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Tongxinluo Activates PI3K/AKT Signaling Pathway to Inhibit Endothelial Mesenchymal Transition and Attenuate Myocardial Fibrosis after Ischemia-Reperfusion in Mice

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Chinese Journal of Integrative Medicine 2024年第7期30卷 608-615页

作者： WEI Ya-ru HOU Yun-long yiN Yu-jie LI Zhen LIU yi HAN Ning-xin WANG Zi-xuan LIU lu WANG Xiao-qi HAO Yuan-jie MA Kun gu Jiao-jiao JIA Zhen-hua Graduate School Hebei University of Chinese MedicineShijiazhuang050090China Shijiazhuang yiling Pharmaceutical New Drug Evaluation Center Shijiazhuang050035China Hebei Institute of Integrated Traditional and Western Medicine Shijiazhuang050035China National Key Laboratory for Innovation and Transformation of luobing Theory Shijiazhuang050035China Department of Cardiology Hebei Yiling HospitalShijiazhuang050091China Graduate School Hebei Medical UniversityShijiazhuang050017China

Objective To investigate the potential role of Tongxinluo(TXL)in attenuating myocardial fibrosis after myocardial ischemia-reperfusion injury(MIRI)in *** A MIRI mouse model was established by left anterior descending coronary artery ligation for 45 *** to a random number table,66 mice were randomly divided into 6 groups(n=11 per group):the sham group,the model group,the LY-294002 group,the TXL group,the TXL+LY-294002 group and the benazepril(BNPL)*** day after modeling,TXL and BNPL were administered by *** injection of LY-294002 was performed twice a week for 4 consecutive *** was used to measure cardiac function in *** staining was used to evaluate the degree of myocardial fibrosis in *** and quantitative analysis of endothelial mesenchymal transition(EndMT)after MIRI was performed by immunohistochemistry,immunofluorescence staining and flow cytometry,*** protein expressions of platelet endothelial cell adhesion molecule-1(CD31),α-smoth muscle actin(α-SMA),phosphatidylinositol-3-kinase(PI3K)and phospho protein kinase B(p-AKT)were assessed using Western *** TXL improved cardiac function in MIRI mice,reduced the degree of myocardial fibrosis,increased the expression of CD31 and inhibited the expression ofα-SMA,thus inhibited the occurrence of EndMT(P0.05).In addition,the use of the PI3K/AKT pathway-specific inhibitor LY-294002 to block this pathway and combination with TXL intervention,eliminated the protective effect of TXL,further supporting the protective effect of *** TXL activated the PI3K/AKT signaling pathway to inhibit EndMT and attenuated myocardial fibrosis after MIRI in mice.

关键词： myocardial fibrosis endothelial mesenchymal transition myocardial ischemia-reperfusion injury phosphatidylinositol-3-kinase/protein kinase B(PI3K/AKT)pathway

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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 *** To explore the characterization of AoCLD to provide theoretical guidance for the accurate diagnosis and prognosis of *** Patients with AoCLD from the Chinese Acute-on-Chronic Liver Failure(ACLF)study cohort were included in this *** 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 *** 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 *** HBV infection is the main cause of CLD,and bacterial infection is the main precipitant of *** most common clinical type of AoCLD is *** 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

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Medical Journals in China: From Wuyi Huijiang to Chinese Medical Journal and hLife

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hLife 2024年第1期2卷 1-3页

作者： qun Yan yi Shi George Fu Gao Editorial Office of hLife Institute of MicrobiologyChinese Academy of SciencesBeijingChina CAS Key Laboratory of Pathogen Microbiology and Immunology Institute of MicrobiologyChinese Academy of SciencesBeijingChina

As Professor Jiaxi lu,the former president of the Chinese Academy of Sciences(CAS),said,“Academic journals are both the‘tail’and the‘head’of a dragon”[1].Professor Zuoyan Zhu,former editor-in-chief of both Science China and Science Bulletin,also once said,“Let Chinese scientific journals grow along with scientific research in China”[2].Academic journals are important carriers for the exchange and dissemination of innovation and achievement in science and are important gardens for the training of scientific talent;also,they play an important role in carrying out an evaluation of academic *** journals are an important component of the academic journal sphere,not only because they account for onethird of academic journals but also because they are directly related to human health。

关键词： journal Medical editor

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Reduced clinical severity during 2022 Shanghai Spring epidemic of SARS-CoV-2 omicron BA.2 variant infection——an integrated account of virus pathogenicity and vaccination effectiveness

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National Science Review 2024年第4期11卷 24-27页

作者： Xingyue Wu Yao Chen Kangli Cao Yao Shen Xueling Wu yilin Yang Zhongshu Kuang Qingrun Li Zhenzhen lu yichen Jia Mian Shao guorong gu Xiangwei Wang Ye Yao ying Wang Shaodie Chen Zhigao Yu Wei Wei Longfei Ding lulu Lan Tianwen gu Xiangyu Long Jian Sun Lingyu Xing Jiayuan Shen yi Han Yue luo Sucheng Mu Mengna Lin Xiaoyan Zhang Rong Zeng Jianqing Xu guoping Zhao Lihong Huang Zhenju Song Department of Emergency Medicine Clinical Center for Bio-Therapy Department of Biostatistics and Department of UrologyShanghai Key Laboratory of Lung Inflammation and Injury Zhongshan Hospital Fudan University Department of Respiratory and Critical Care Medicine Shanghai Pudong Hospital Fudan University Department of Pulmonology Renji Hospital Shanghai Jiao Tong University School of Medicine Key Laboratory of Systems Biology Center for Excellence in Molecular Cell Science Shanghai Institute of Biochemistry and Cell Biology Chinese Academy of Sciences Shanghai Public Health Clinical Center Fudan University Department of Biostatistics School of Public Health Key Laboratory of Public Health Safety of Ministry of Education and Shanghai Institute of Infectious Disease and Biosecurity School of Public Health Fudan University Shanghai Institute of Immunology Department of Immunology and Microbiology Shanghai Institute of Virology Key Laboratory of Cell Differentiation and Apoptosis of Chinese Ministry of EducationSchool of Medicine Shanghai Jiao Tong University State Key Laboratory of Genetic Engineering Fudan Microbiome CenterSchool of Life Sciences Fudan University Bio-Med Big Data Center Shanghai Institute of Nutrition and Health Chinese Academy of Sciences

The emergence of SARS-Co V-2 variant of concern omicron BA.2 led to high infection incidence rates as well as reduced severity of COVID-19 during the Shanghai Spring epidemic of 2022 [1]. We assessed the role of viral pathogenicity and the effectiveness of inactivated vaccines in a retrospective observational study including 10 258 confirmed COVID-19cases identified between April and June of 2022, from four COVID-19 designated hospitals located in two areas of Shanghai, namely the West Bund and the East Bund, where the populations’ demographic characteristics varied significantly (Table S1, Fig. S1).

关键词： REPLICATION

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Predictors for partial suppression of spermatogenesis of hormonal male contraception

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Asian Journal of Andrology 2008年第5期10卷 723-730页

作者： Jing-wen Li yi-qun gu peking Union Medical College Postgraduate School Beijing 100730 China National Research Institute for Family Planning Beijing 100081 China

Aim： To analyze factors influencing the efficacy of hormonal suppression of spermatogenesis for male contraception. Methods： A nested case-control study was conducted, involving 43 subjects, who did not achieve azoospermia or severe oligozoospermia when given monthly injections of 500 mg testosterone undecanoate （TU）, defined as partial suppressors compared with 855 subjects who had suppressed spermatogenesis （complete suppressors）. Sperm density, serum testosterone, luteinizing hormone （LH） and follicle stimulating hormone （FSH） concentrations at the baseline and the suppression phase were compared between partial and complete suppressors. Polymorphisms of androgen receptor （AR） and three single nucleotide variants and their haplotypes of FSH receptor （FSHR） genes determined by polymerase chain reaction （PCR） and DNA sequencing technique were compared between 29 partial and 34 complete suppressors. Results： Baseline serum LH level was higher and serum LH as well as FSH level during the suppression phase was less suppressed in partial suppressors. Additionally, in a logistic regression analysis larger testis volume, higher serum FSH concentrations alone, or interaction of serum LH, FSH, testosterone and sperm concentrations were associated with degree of suppression. The distribution of polymorphisms of AR or FSH receptor genes did not differ between partial and complete suppressors. In cases with incomplete FSH suppression （FSH 〉 0.2 IU/L）, the chances of reaching azoospermia were 1.5 times higher in the subjects with more than 22 CAG triplet repeats. Conclusion： Partial suppression of spermatogenesis induced by 500 mg TU monthly injections is weakly influenced by hormonal and clinical features but not polymorphism in AR and FSHR genes.

关键词： male contraception genetic polymorphism androgen receptor CAG repeats follicle stimulating hormone receptor single nucleotide polymorphism sperm concentration

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HPB工艺用于污水厂扩容提标的中试实验

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水处理技术 2024年第6期50卷 131-135页

作者：吕守维易境顾群龙口市自来水有限公司山东烟台265701 湖南三友环保科技有限公司湖南长沙410205

山东某水厂因进水超标而造成减产,拟用HPB(High concentration powder carrier bio-fluidized bed)工艺提高水厂产量,故进行中试实验验证该技术的可行性及低温下对北方高浓度工业废水的处理结果。实验期间,中试装置进水水质与原水厂相同... 详细信息

山东某水厂因进水超标而造成减产,拟用HPB(High concentration powder carrier bio-fluidized bed)工艺提高水厂产量,故进行中试实验验证该技术的可行性及低温下对北方高浓度工业废水的处理结果。实验期间,中试装置进水水质与原水厂相同,结果表明:工况Ⅰ,在水力停留时间为25.84 h时(模拟厂区3×10^(4) m^(3)/d),中试系统COD去除率为96.3%,TN去除率为91.1%,NH_(3)-N去除率为96.0%,TP去除率为98.8%;工况Ⅱ,在水力停留时间为20.0 h时(模拟厂区4×10^(4) m^(3)/d),中试系统COD去除率为94.3%,TN去除率为93.4%,NH_(3)-N去除率为96.4%,TP去除率为98.4%;极限工况下,水力停留时间15.6~20.0 h(模拟厂区4~5.33×10^(4) m^(3)/d),中试系统COD去除率为94.5%,TN去除率为92.0%,NH_(3)-N去除率为96.8%,TP去除率为98.3%。在水力停留时间减半的情况下,中试装置出水仍接近甚至优于原厂区,稳定达到二沉池设计出水水质(COD<100 mg/L,ρ(NH_(3)-N)<1.5 mg/L,ρ(TN)<10mg/L,ρ(TP)<0.3 mg/L)。中试实验验证了北方低温下HPB用于该水厂提标扩容的可能性,为日后的生产性实验奠定基础。

关键词：高浓度复合粉末载体生物流化床双泥龄脱氮除磷自养反硝化低温水处理

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混凝土自复位墙结构地震全过程损伤分析

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建筑结构学报 2024年第2期45卷 189-204页

作者：鲁懿虬 HENRY Richard S 周颖 RODGERS Geoffrey W 杨群顾安琪同济大学土木工程学院上海200092 奥克兰大学土木与环境系新西兰奥克兰1010 坎特伯雷大学土木与自然资源工程系新西兰基督城8140

后张法预应力混凝土自复位墙是一种有效的可恢复功能结构。虽然自复位墙自身在地震中损伤较小,但其与周边构件的变形不协调可使结构损伤严重。为控制结构层面的损伤,设计了1个框架-自复位墙结构,对自复位墙底、梁柱节点、墙梁节点、墙-... 详细信息

后张法预应力混凝土自复位墙是一种有效的可恢复功能结构。虽然自复位墙自身在地震中损伤较小,但其与周边构件的变形不协调可使结构损伤严重。为控制结构层面的损伤,设计了1个框架-自复位墙结构,对自复位墙底、梁柱节点、墙梁节点、墙-基础连接、柱-基础连接以及墙-板连接开展损伤控制设计,并对设计的结构进行足尺振动台试验。结构共经历了39次不同设计工况下不同烈度的地震激励,峰值加速度最大达1.0g,位移角最大达3.3%。对结构在历次地震作用下整体、局部构件和节点的损伤发展进行全过程定量分析,结果表明:自复位墙-开槽梁结构在地震作用下的损伤能够得到有效控制,其中多遇、设防地震作用下结构基本无损伤,罕遇地震作用下墙底损伤仅限角部剥落且面积仅为400 cm2,楼板有开裂且裂缝最大仅为1.2 mm,梁端剥落可忽略;自复位墙-开槽梁结构可使整个结构在不同设计位移角下实现多遇、设防地震不坏,罕遇地震小修甚至不修的抗震性能目标;设计的连接方式解决了结构中构件之间的变形不协调问题,提高了自复位墙结构层面的可修复性。

关键词：自复位墙开槽梁墙板连接振动台试验结构损伤

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埋底界面修饰对钙钛矿太阳能电池的影响

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材料导报 2024年第7期38卷 12-21页

作者：杜一顾邦凯陈曦李夏冰卢豪苏州科技大学材料科学与工程学院江苏苏州215009 东南大学物理学院南京211189

经过十多年的发展,钙钛矿太阳能电池(PSCs)迅速实现了能量转换效率(PCE)从3.8%提高到25.7%的突破,在新一代光伏产业中具有显著的竞争力。钙钛矿太阳能电池的蓬勃发展不仅源于钙钛矿材料具有高光吸收系数、优异的载流子迁移率和可调节的... 详细信息

经过十多年的发展,钙钛矿太阳能电池(PSCs)迅速实现了能量转换效率(PCE)从3.8%提高到25.7%的突破,在新一代光伏产业中具有显著的竞争力。钙钛矿太阳能电池的蓬勃发展不仅源于钙钛矿材料具有高光吸收系数、优异的载流子迁移率和可调节的直接带隙,还源于其简便且成本低廉的制造工艺。但是钙钛矿电池内部的缺陷问题,特别是钙钛矿层与底层界面处的缺陷是限制钙钛矿电池效率与稳定性进一步提升的一个瓶颈。通过有效的界面修饰,一方面可以提高钙钛矿的效率,另一方面可以提高器件的稳定性。本文从界面工程对钙钛矿性能的影响出发,着重介绍了埋底界面的修饰工作对钙钛矿电池效率与稳定性的影响,包含电子传输层(ETL)/钙钛矿界面与空穴传输层(HTL)/钙钛矿界面这两部分,通过对这两类埋底界面的有效改性修饰,器件的效率与稳定性显著提高。通过对比分析了各种材料与实验方法对钙钛矿器件整体性能和稳定性的影响,探索了一条有效改善器件性能的路径。最后,本文还对钙钛矿太阳能电池的前景进行了展望。

关键词：钙钛矿太阳能电池界面修饰埋底界面效率稳定性电子传输层

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A randomized, controlled, multicenter contraceptive efficacy clinical trial of the intravas device, a nonocclusive surgical male sterilization

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Asian Journal of Andrology 2014年第3期16卷 432-436页

作者： wen-hong lu Xiao-Wei Liang yi-qun gu Wei-Xiong Wu Li-Wei Bo Tian-gui Zheng Zhen-wen Chen Key Laboratory of Male Reproductive Health National Health and Family Planning Commission National Research Institute for Family Planning and WHO Collaborating Centre for Research in Human Reproduction Beijing Institute for Family Planning of guangzhou city Guangzhou Institute for Family Planning of Henan Province Zhengzhou Institute for Family Planning of Putian City Putian China.

Because of unavoidable complications of vasectomy, this study was undertaken to assess the efficacy and safety of male sterilization with a nonobstructive intravas device （IVD） implanted into the vas lumen by a mini-surgical method compared with no-scalpel vasectomy （NSV）. IVDs were categorized into two types： IVD-B has a tail used for fixing to the vas deferens （fixed wing） whereas IVD-A does not. A multicenter prospective randomized controlled clinical trial was conducted in China. The study was comprised of 1459 male volunteers seeking vasectomy who were randomly assigned to the IVD-A （n = 487）, IVD-B （n = 485） or NSV （n = 487） groups and underwent operation. Follow-up included visits at the 3rd-6TM and 12~ postoperative months, The assessments of the subjects involved regular physical examinations （including general and andrological examinations） and semen analysis. The subjects＇ partners also underwent monitoring for pregnancy by monthly interviews regarding menstruation and if necessary, urine tests, There were no significant differences in pregnancy rates （0.65% for IVD-A, 0 for IVD-B and 0.21% for NSV） among the three groups （P 〉 0.05）. The cumulative rates of complications at the 12th postoperative month were zero, 0.9% and 1.7% in the three groups, respectively. In conclusion, IVD male sterilization exhibits a low risk of long-term adverse events and was found to be effective as a male sterilization method, similar to the NSV technique. IVD male sterilization is expected to be a novel contraceptive method.

关键词： complication male sterilization nonobstructive intravas device no-scalpel vasectomy

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