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205篇 您的检索式:作者名="Hong Lian"
    题名 作者 年代 出处 被引量
1Sufentanil reduces emergence agitation in children receiving sevoflurane anesthesia for adenotonsillectomy compared with fentanyl显示文摘背景出现焦虑是在小儿科的麻醉的一个普通问题,特别在 sevoflurane 正式就职和这研究的维护 anesthesia.The 目的是调查在与 fentanyl.Methods 相比经历 adenotonsillectomy 的孩子在 sevoflurane 麻醉以后减少出现焦虑的 sufentanil 的效果以后 105 个孩子 3-11 年,随机被分配收到正常盐(控制组), sufentanil 0.2 g/kg ( S2 )或芬太奴 2 g/kg ( F2 ) 1LI Jun HUANG Zhi-lian ZHANG Xu-tong LUO Ke ZHANG Zhan-qin MAO Yi ZHUANG Xiao-biao LIAN Qing-quan CAO Hong 2011Chinese Medical Journal2011,,22:27
2Acute inflammation stimulates a regenerative response in the neonatal mouse heart显示文摘Chunyong Han Yu Nie Hong Lian Rui Liu Feng He Huihui Huang Shengshou Hu 2015Cell Research2015,25,10:26
3DNA-based vaccination induces humoral and cellular immune responses against hepatitis B virus surface antigen in mice without activation of Cmyc显示文摘AIM To develop a safe and effective DNAvaccine for inducing humoral and cellularimmunological responses against hepatitis Bvirus surface antigen(HBsAg).METHODS BALB/c mice were inoculated withNV-HB/s,a recombinant plasmid that had beeninserted S gene of hepatitis B virus genome andcould express HBsAg in eukaryotes.HBsAgexpression was measured by ABC immunohis-tochemical assay,generation of anti-HBs byELISA and cytotoxic T lymphocyte(CTL),byMTT method,existence of vaccine DNA bySouthern blot hybridization and activation ofoncogene C-myc by in situ hybridization,RESULTS With NV-HB/s vaccination byintramuscular injection,anti-HBs was initiallypositive 2 weeks after inoculation while all micetested were HBsAg positive in the muscles.Thetiters and seroconversion rate of anti-HBs weresteadily increasing as time went on and weredose-dependent.All the mice inoculated with100 μg NV-HB/s were anti-HBs positive onemonth after inoculation,the titer was 1:1024 ormore.The humoral immune response was similarinduced by either intramuscular or intradermalinjection.CTL activities were much stronger(45.26%)in NV-HB/s DNA immunized mice as compared with those(only 6%)in plasma-derived HBsAg vaccine immunized mice.Twomonths after inoculation,all muscle sampleswere positive by Southern-blot hybridization forNV.HB/s DNA detection,but decreased to 25%and all were undetectable by in situhybridization after 6 months.No oncogene C-myc activation was found in the muscle ofinoculation site.CONCLUSION NV-HB/s could generatehumoral and cellular immunological responsesagainst HBsAg that had been safely expressed insitu by NV-HB/s vaccination.Lian San Zhao Shan Qin Tao You Zhou Hong Tang Li Liu Bing Jun Lei 2000World Journal of Gastroenterology2000,6,2:24
4Construction, expression and characterization of the engineered antibody against tumor surface antigen, p185^(c-erbB-2)显示文摘The c-erbB-2 proto-oncogene encodes a 185kDa protein p185, which belongs to epidermal growth factorreceptor family. Amplification of this gene has been shown to correlate with poor clinical prognosis forcertain cancer patients. The monoclonal antibody A21 which directed against p185 specifically inhibitsproliferation of tumor cells overexpressing p185, hence allows it to be a candidate for targeted therapy. Inorder to overcome several drawbacks of murine MAb, we cloned its VH and VL genes and constructed thesingle-chain Fv (scFv) through a peptide linker. The recombinant scFvA21 was expressed in Escherichiacoli and purified by the affinity column. Subsequently it was characterized by ELISA, Western blot, cellimmunohistochemistry and FACS. All these assays showed the binding activity to extracellular domain(ECD) of p185. Based on those properties of scFvA21, we further constructed the scFv-Fc fusion moleculewith a homodimer form and the recombinant product was expressed in mammalian cells. In a series ofsubsequent analysis this fusion protein showed identical antigen binding site and activity with the parentantibody. These anti-p185 engineered antibodies have promised to be further modified as a tumor targetingdrugs, with a view of application in the diagnosis and treatment of human breast cancer.LIAN SHENG CHENG, AI PING LIU, JIA HONG YANG, YAN QIU DONG, LIANG WEI LI, JING WANG, CHAO CHEN WANG, JING LIUSchool of Life Science, University of Science and Technology of China, Hefei 230027, China 2003Cell Research2003,13,1:24
5Genome-wide Association Analyses Reveal the Genetic Basis of Stigma Exsertion in Rice显示文摘耻辱 exsertion,交配系统的米饭的一个关键决定因素,极大地在米饭贡献杂种优势的申请。尽管与耻辱 exsertion 联系的一些量的特点 loci 是印射或克隆的罚款,内在的基因建筑学仍然保持不清楚。我们用在 Oryza sativa 的 533 多样的就职描绘的 650 万 SNP 在耻辱 exsertion 和相关花的特点上执行了染色体宽的协会研究。我们识别了显著地与耻辱 exsertion 和相关特点,其三与三主要谷物尺寸基因 GS3, GW5,和 GW2 co 局部性被联系的 23 genomic loci。进一步的分析显示这三基因由控制小穗状花小穗和耻辱的尺寸和形状影响了耻辱 exsertion。GS3 和 GW5 的联合大部分定义耻辱 exsertion 和相关特点的层次。这二基因的选择在 O 的 subpopulations 之中导致了花的特点的特定的分布。sativa。低耻辱 exsertion 联合 gw5GS3 在栽培米饭变化的一半存在;因此,介绍 GW5gs3 联合进男无菌的线具有为改进混合米饭的种子生产的高潜力。Hao Zhou Pingbo Li WeiboXie Saddam Hussain Yibo Li Duo Xia Hu Zhao Shengyuan Sun Junxiao Chen Hong Ye Jun Hou Da Zhao Guanjun Gao Qinglu Zhang Gongwei Wang Xingming Lian Jinghua Xiao Sibin Yu Xianghua Li Yuqing He 2017Molecular Plant2017,10,4:15
6Molecular Epidemiological Characteristics of Streptococcus pyogenes Strains Involved in an Outbreak of Scarlet Fever in China,2011显示文摘Objective To investigate molecular characterization of streptococcus pyogenes isolates involved in an outbreak of scarlet fever in China in 2011.Methods Seventy-four Streptococcal pyogenes involved in an outbreak of scarlet fever were isolated from pediatric patients in the areas with high incidence in China from May to August of 2011.Emm genotyping,pulsed-field gel electrophoresis (PFGE),superantigen (SAg) genes and antimicrobial susceptibility profiling were analyzed for these isolates.Results A total of 4 different emm types were identified.Emm12 was the most prevalent type which contained four predominating PFGE patterns corresponding to four different virulence and superantigen profiles.Emm12 (79.7%) and emml (14.9%) accounted for approximately 94%of all the isolates.The speA gene was all negative in emm12 isolates and positive in emml isolates.All strains were resistant to erythromycin,and 89.4%of them were resistant to erythromycin,tracycline,and clindamycin simultaneously.Conclusion Several highly diversified clones with a high macrolide resistance rate comprise a predominant proportion of circulating strains,though no new emm type was found in this outbreak.The data provide a baseline for further surveillance of scarlet fever,which may contribute to the explanation of the outbreak and development of a GAS vaccine in China.YOU Yuan Hai SONG Yan Yan YAN Xiao Mei WANG Hai Bin ZHANG Meng Han TAO Xiao Xia Li Lei Lei ZHANG Yu Xin JIANG Xi Hong ZHANG Bing Hua ZHOU Hao XIAO Di JIN Lian Mei FENG Zi Jian LUO Feng Ji ZHANG Jian Zhong 2013Biomedical and Environmental Sciences2013,26,11:15
7Oxidative Stress before and after Operation in Patients with Chronic Cholecystitis Containing Gallstone显示文摘To study the relationship of oxidative, antioxidative constituents and antioxidases in blood with chronic cholecystitis containing gallstone, levels of lipoperoxides (LPO), nitric oxide (NO), vitamin C(VC), vitamin E (VE) and β carotene (β CAR) in plasma as well as level of LPO, activities of superoxide dismutase (SOD), catalase (CAT) and glutathione peroxidase (GSH Px) in erythrocytes were investigated by spectrophotometric assay in 107 patients with this condition (PCg) and 100 healthy volunteers (HVs). Compared with HVs group, the average value of LPO and NO in plasma and that of LPO in erythrocytes of PCg group were significantly increased ( P <0.0001), while that of VC, VE and β CAR in plasma and the average activities of SOD, CAT and GSH Px in erythrocytes were significantly decreased ( P <0.0001). Linear regression and correlation analysis for 107 preoperative PCg showed that the value of LPO and NO in plasma and that of LPO in erythrocytes of PCg gradually increased ( P <0.0001), representing a significant linear positive correlation. The value of VC, VE and β CAR in plasma and that of SOD, CAT and GSH Px in erythrocytes of PCg gradually decreased ( P <0.0001), representing a significant linear negative correlation. Stepwise regression and correlation analysis for 107 preoperative PCg suggested that the closest correlation was observed between the course of disease and the value of NO and VC in plasma and that of SOD, GSH Px and LPO in erythrocytes, r =0.7306, F =32.1408, P <0.0001. Compared with the preoperative PCg group, the average value of LPO and NO in plasma and that of LPO in erythrocytes of the postoperative PCg group were significantly decreased ( P <0.0001). Furthermore, the average value of VC in plasma and that of SOD, CAT and GSH Px in erythrocytes of the postoperative PCg group were significantly increased ( P <0.0001), whereas no significant difference was found between their average value of VE and β CAR in plasma. These findings suggested that oxidative stress was an aggravating pathological condition in PCg group. Therefore, we recommend that in treating PCg, antioxidants such as VC, VE, β CAR should be given in order to alleviate their potential oxidative damages.ZHOU JUN FU , CHEN PENG , YANG JIN LU +, ZHU YOU GEN + PENG CHENG HONG , AND WU YU LIAN  The 2nd Affiliated Hospital, Medical College of Zhejiang University, 88 Jiefang Road, Hangzhou, 310009, Zhejian 2000Biomedical and Environmental Sciences2000,13,4:10
8Progress in the biological function of alpha-enolase显示文摘Alpha-enolase(ENO1), also known as 2-phospho-D-glycerate hydrolase, is a metalloenzyme that catalyzes the conversion of 2-phosphoglyceric acid to phosphoenolpyruvic acid in the glycolytic pathway. It is a multifunctional glycolytic enzyme involved in cellular stress, bacterial and fungal infections, autoantigen activities, the occurrence and metastasis of cancer, parasitic infections, and the growth, development and reproduction of organisms. This article mainly reviews the basic characteristics and biological functions of ENO1.Hong Ji Jianfa Wang Jingru Guo Yue Li Shuai Lian Wenjin Guo Huanmin Yang Fanzhi Kong Li Zhen Li Guo Yanzhi Liu 2016Animal Nutrition2016,,1:9
9Current status of clinical nursing specialists and the demands of osteoporosis specialized nurses in China's Mainland显示文摘The clinical nursing specialist(CNS)is an expert who applies an expanded range of practical,theoretical,and research-based competencies to the care of patients within in a specialty clinical area within the larger discipline of nursing.A large number of studies consistently conclude that the CNS is a valuable healthcare resource that provides highquality clinical and evidence-based nursing practice and improves patient outcome.The CNS has been involved in healthcare practices for many years,with an increasingly diverse role.However,the training for the CNS in China is only in a preliminary developmental stage.The aim of this article is to review the history and development of the CNS role.Furthermore,the epidemiologic status of osteoporosis,as well as the feasibility and necessity of developing training programs in China for the osteoporosis CNS,will be discussed.Xu Tian Jun-xiao Lian Li-juan Yi Li Ma Yan Wang Hong Caoc Guo-min Song 2014International Journal of Nursing Sciences2014,1,3:9
10Lithofacies paleogeography mapping and reservoir prediction in tight sandstone strata: A case study from central Sichuan Basin, China显示文摘Sand-rich tight sandstone reservoirs are potential areas for oil and gas exploration. However, the high ratio of sandstone thickness to that of the strata in the formation poses many challenges and uncertainties to traditional lithofacies paleogeography mapping. Therefore, the prediction of reservoir sweet spots has remained problematic in the field of petroleum exploration. This study provides new insight into resolving this problem, based on the analyses of depositional characteristics of a typical modern sand-rich formation in a shallow braided river delta of the central Sichuan Basin, China. The varieties of sand-rich strata in the braided river delta environment include primary braided channels,secondary distributary channels and the distribution of sediments is controlled by the successive superposed strata deposited in paleogeomorphic valleys. The primary distributary channels have stronger hydrodynamic forces with higher proportions of coarse sand deposits than the secondary distributary channels. Therefore, lithofacies paleogeography mapping is controlled by the geomorphology, valley locations, and the migration of channels. We reconstructed the paleogeomorphology and valley systems that existed prior to the deposition of the Xujiahe Formation. Following this, rock-electro identification model for coarse skeletal sand bodies was constructed based on coring data. The results suggest that skeletal sand bodies in primary distributary channels occur mainly in the valleys and low-lying areas,whereas secondary distributary channels and fine deposits generally occur in the highland areas. The thickness distribution of skeletal sand bodies and lithofacies paleogeography map indicate a positive correlation in primary distributary channels and reservoir thickness. A significant correlation exists between different sedimentary facies and petrophysical properties. In addition, the degree of reservoir development in different sedimentary facies indicates that the mapping method reliably predicts the distribution of sweet spots. The application and understanding of the mapping method provide a reference for exploring tight sandstone reservoirs on a regional basis.Yuan Zhong Lu Zhou Xiucheng Tan Chengbo Lian Hong Liu Jijia Liao Guang Hu Mingjie Liu Jian Cao 2017Geoscience Frontiers2017,8,5:9
11Relations of Budd-Chiari syndrome to prothrombin gene mutation显示文摘BACKGROUND: Budd-Chiari syndrome (BCS) is a type of disease characterized by portal hypertension and/or hy- pertension of the inferior vena cava (IVC) due to the ob- struction of the hepatic veins (HV) and/or intrahepatic IVC outlet. Being etiologically complicated and obscure, BCS can be acquired or idiopathic and several gene muta- tions may be contributable. This study was to explore whether prothrombin gene mutation (F G20210A) takes part in the pathogenesis of BCS and to investigate their cor- relativity. METHODS: In 38 proven BCS patients and 70 controls, polymerase chain reaction-restriction fragment length poly- morphism (PCR-RFLP) was used to find F G20210A mutation. To detect whether there are any mutations, four steps were taken: purification of genome DNA from whole blood, amplification of special fragment by polymerase chain reaction, digestion of the fragment via restriction en- donuclease, and analysis of results by polyacrylamide gel electrophoresis. RESULTS: F G20210A mutation was not detected in all patients and controls. CONCLUSIONS: No F G20210A mutation exists in Chi- nese patients with BCS, nor correlativity between the oc- currence of BCS and F G20210A mutation. The etiology of BCS in the Chinese needs further investigation.Guo-Ling Lin, Pei-Qin Xu, Hua Qi, Jian-Hua Lian, Hong Zheng and Xiao-Wei Dang Zhengzhou, ChinaDepartment of General Surgery, First Affiliated Hospi- tal of Zhengzhou University the Faculty of Cytobiology and Medical Genetics, Medical School, Zhengzhou Univer- sity , Zhengzhou 450052, China 2004Hepatobiliary & Pancreatic Diseases International2004,3,2:9
12Fourth C hinese National Consensus Report on the management of H elicobacter pylori infection显示文摘Wen Zhong Liu Yong Xie Hong Cheng Nong Hua Lu Fu Lian Hu Wan Dai Zhang Li Ya Zhou Ye Chen Zhi Rong Zeng Chong Wen Wang Shu Dong Xiao Guo Zong Pan Pin Jin Hu 2013Journal of Digestive Diseases2013,,5:9
13Pyruvate is a prospective alkalizer to correct hypoxic lactic acidosis显示文摘Type A lactic acidosis resulted from hypoxic mitochondrial dysfunction is an independent predictor of mortality for critically ill patients. However, current therapeutic agents are still in shortage and can even be harmful. This paper reviewed data regarding lactic acidosis treatment and recommended that pyruvate might be a potential alkalizer to correct type A lactic acidosis in future clinical practice. Pyruvate is a key energy metabolic substrate and a pyruvate dehydrogenase(PDH) activator with several unique beneficial biological properties, including anti-oxidant and antiinflammatory effects and the ability to activate the hypoxia-inducible factor-1(HIF-1α)-erythropoietin(EPO) signal pathway. Pyruvate preserves glucose metabolism and cellular energetics better than bicarbonate, lactate, acetate and malate in the efficient correction of hypoxic lactic acidosis and shows few side effects. Therefore, application of pyruvate may be promising and safe as a novel therapeutic strategy in hypoxic lactic acidosis correction accompanied with multi-organ protection in critical care patients.Ying Wang Ya Huang Jing Yang Fang-Qiang Zhou Lian Zhao Hong Zhou 2018Military Medical Research2018,5,4:8
14Expression of Recombinant Human Lysozyme-tachyplesin I(hLYZ-TP I)in Pichia Pastoris and Analysis of Antibacterial Activity显示文摘Antimicrobial peptides(AMPs)are making headlines in science because they demonstrate superior microbicidal characteristics compared to synthetic and semi-synthetic antibiotics [1].Importantly,AMPs kill pathogens via a different mechanism compared to antibiotics [2].Therefore,GAO Yu ZHAO Hong Lei FENG Xin ZHAI Rui Dong ZHU Seng DU Chong Tao SUN Chang Jiang LEI Lian Cheng 2013Biomedical and Environmental Sciences2013,26,4:7
15Review of the pharmacological effects of astragalosideⅣand its autophagic mechanism in association with inflammation显示文摘Astragalus membranaceus Bunge,known as Huangqi,has been used to treat various diseases for a long time.AstragalosideⅣ(AS-Ⅳ)is one of the primary active ingredients of the aqueous Huangqi extract.Many experimental models have shown that AS-Ⅳexerts broad beneficial effects on cardiovascular disease,nervous system diseases,lung disease,diabetes,organ injury,kidney disease,and gynaecological diseases.This review demonstrates and summarizes the structure,solubility,pharmacokinetics,toxicity,pharmacological effects,and autophagic mechanism of AS-Ⅳ.The autophagic effects are associated with multiple signalling pathways in experimental models,including the PI3KI/Akt/m TOR,PI3KⅢ/Beclin-1/Bcl-2,PI3K/Akt,AMPK/m TOR,PI3K/Akt/m TOR,SIRT1–NF-κB,PI3K/AKT/AS160,and TGF-β/Smad signalling pathways.Based on this evidence,AS-Ⅳcould be used as a replacement therapy for treating the multiple diseases referenced above.Ying Yang Meng Hong Wen-Wen Lian Zhi Chen 2022World Journal of Clinical Cases2022,10,28:7
16The balance of acidity and redox capability over modified CeO_2 catalyst for the selective catalytic reduction of NO with NH_3显示文摘The effect of acidity and redox capability over sulfuric acid-modified CeO_2 catalysts were studied for the selective catalytic reduction of NO_x with NH_3(NH_3-SCR). The deposition of sulfate significantly enhanced the catalytic performance over CeO_2. NO_x conversion over4H_2SO_4/CeO_2 at 230–440 °C was higher than 90%. The strong redox capability of CeO_2 could result in unselective NH_3 oxidation and decrease high temperatures catalytic activity and N_2 selectivity. The deposition of sulfate increased the acidity and weakened the redox capability, and then increased the high temperature NO_x conversion and N_2 selectivity. An appropriate level of acidity also promoted the activity at 190–250 °C over ceria-based catalysts, and with further increase in the acidity, the SCR activity decreased slightly. Weak redox capability lowered the low-temperature catalytic activity. Excellent SCR activity requires a balance of acidity and redox capability on the catalysts.Zhihua Lian Wenpo Shan Meng Wang Hong He Qingcai Feng 2019Journal of Environmental Sciences2019,31,5:6
17Antimicrobial activity of silver loaded MnO_2 nanomaterials with different crystal phases against Escherichia coli显示文摘Silver-loaded MnO_2 nanomaterials(Ag/MnO_2),including Ag/α-MnO_2,Ag/β-MnO_2,Ag/γ-MnO_2and Ag/δ-MnO_2 nanorods,were prepared with hydrothermal and impregnation methods.The bactericidal activities of four types of Ag/MnO_2 nanomaterials against Escherichia coli were investigated and an inactivation mechanism involving Ag^+ and reactive oxygen species(ROS)was also proposed.The bactericidal activities of Ag/MnO_2 depended on the MnO_2 crystal phase.Among these nanomaterials,Ag/β^-MnO_2 showed the highest bactericidal activity.There was a 6-log decrease in E.coli survival number after treatment with Ag/β^-MnO_2 for120 min.The results of 5,5-dimethyl-l-pyrroline-N-oxide spin-trapping measurements by electron spin resonance indicate OH and O_2^- formation with addition of Ag/β-MnO_2,Ag/γ-MnO_2 or Ag/δ-MnO_2.The strongest peak of OH appeared for Ag/β-MnO_2,while no OH or ·O_2^-signal was found over Ag/α-MnO_2.Through analysis of electron spin resonance(ESR) and Ag+elution results,it could be deduced that the toxicity of Ag^+ eluted from Ag/MnO_2 nanomaterials and ROS played the main roles during the bactericidal process.Silver showed the highest dispersion on the surface of β-MnO_2,which promoted ROS formation and the increase of bactericidal activity.Experimental results also indicated that Ag/MnO_2 induced the production of intracellular ROS and disruption of the cell wall and cell membrane.Lian Wang Hong He Changbin Zhang Li Sun Sijin Liu Shaoxin Wang 2016Journal of Environmental Sciences2016,28,3:6
18Synthesis of Nanoscale Shell-core Titania Coated Silica Particles in the Presence of Polyether Polyamine and the Phase Transition显示文摘The nanoscale titania coated silica was prepared via a two-step precipitating approach, where the nanoscale silica nuclei were first prepared by passing an aqueous solution of sodium silicate through an ion-exchange resin bed, then coated with the precipitation from hydrolyzed butyl titanate in an ethanol-hexane mixture at a low pH value in the presence of poly(ethylene oxide) polyamine salt(PPA) at a high temperature of 90 ℃. In the second-step precipitating process, the spontaneously precipitated titania shell on the silica nuclei was stabilized in the suspension solution with the help of the adsorption of PPA on the particles. A possible precipitating mechanism was suggested. Furthermore, the amorphous titania shell could undergo crystallization from the amorphous to the anatase structure at a high temperature of 650 ℃, and a further phase transition from the anatase to the rutile structure in the different sintering processes at a rising temperature of 750 ℃.HUA Feng-jun 1, SUN Jun 2, HONG Ke 2, GAO Lian 1 and YANG Yu-liang 1** 1. Key Laboratory of Molecular Engineering of Polymer, Fudan University, Shanghai 200433, P. R. China 2. State Key Laboratory of High Performance Ceramics and Superfine Micros 2002Chemical Research in Chinese Universities2002,18,1:6
19Cytotoxicity and Apoptosis Induction in Human HepG2 Hepatoma Cells by Decabromodiphenyl Ethane显示文摘Objective To investigate the toxic effects of decabromodiphenyl ethane (DBDPE), used as an alternative to decabromodiphenyl ether in vitro. Methods HepG2 cells were cultured in the presence of DBDPE at various concentrations (3.125-100.0 mg/L) for 24, 48, and 72 h respectively and the toxic effect of DBDPE was studied. Results As evaluated by the 3-(4,5-dimethylthiazol-2-yl)-2,5-diphenyl tetrazolium bromide and lactate dehydrogenase assays and nuclear morphological changes, DBDPE inhibited HepG2 viability in a time- and dose-dependent manner within a range of 12.5 mg/L to 100 mg/L and for 48 h and 72 h. Induction of apoptosis was detected at 12.5-100 mg/L at 48 h and 72 h by propidium iodide staining, accompanied with overproduction of reactive oxygen species (ROS). Furthermore, N-acetyl-L-cysteine, a widely used ROS scavenger, significantly reduced DBDPE-induced ROS levels and increased HepG2 cells viability. Conclusion DBDPE has cytotoxic and anti-proliferation effect and can induce apoptosis in which ROS plays an importantSUN Ru Bao XI Zhu Ge YAN Jun YANG Hong Lian 2012Biomedical and Environmental Sciences2012,25,5:6
20Sperm retrieval rates and clinical outcomes for patients with different causes of azoospermia who undergo microdissection testicular sperm extraction-intracytoplasmic sperm injection显示文摘The aim of our study was to compare the sperm retrieval rates(SRRs)and clinical outcomes of patients with different causes of azoospermia who underwent microdissection testicular sperm extraction-intracytoplasmic sperm injection(micro-TESE-ICSI).We conducted a retrospective study at the Reproductive Medicine Center of Peking University Third Hospital in Beijing,China,from January 2014 to December 2017.This study examined 769 patients with nonobstructive azoospermia who underwent 347 cycles of micro-TESE-ICSI.Patients with azoospermia were classified into Group A(Klinefelter syndrome,n=284,125 cycles),Group B(azoospermia Y chromosome factor c[AZFc]microdeletion,n=91,64 cycles),Group C(cryptorchidism,n=52,39 cycles),Group D(previous mumps and bilateral orchitis,n=23,23 cycles),and Group E(idiopathic azoospermia,n=319,96 cycles).Clinical characteristics,SRR,embryonic development,and pregnancy outcomes of the patients were compared between all groups.Patients in Group D had the highest and most successful SRR.The average SRR for all patients was 46.0%.The rates of clinical pregnancy,implantation,and live birth in Group D were 78.3%,65.0%,and 74.0%,respectively,which were higher than those in all other groups(P<0.05).Group B patients had the lowest clinical pregnancy,implantation,and live birth rates of all groups(P<0.05).No differences were found in the miscarriage rate or birth defects among the groups(P>0.05).Patients with orchitis had the highest SRR and best clinical outcomes.Although AZFc microdeletion patients had a higher SRR,their clinical outcomes were worse.Hong-Liang Zhang Lian-Ming Zhao Jia-Ming Mao De-Feng Liu Wen-Hao Tang Hao-Cheng Lin Li Zhang Ying Lian Kai Hong Hui Jiang 2021Asian Journal of Andrology2021,23,1:6
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