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1334篇 您的检索式:作者名="ZOU Yu"
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1PREVALENCE AND RISK FACTORS OF PERIPHERAL ARTERIAL DISEASE IN DIABETIC PATIENTS OVER 50 YEARS OLD IN CHINA显示文摘Objective To investigate the prevalence of peripheral arterial disease (PAD) in China type 2 diabetic patients and to demonstrate the relationships between putative risk factors and PAD. Methods In total 1 397 type 2 diabetic patients aged 50 years and older were enrolled and determined ankle-brachial index (ABI) and brachial-ankle pulse wave velocity (baPWV) in 15 Class III Grade A hospitals in 7 major cities of China. Results Mean patient age was 63.7±8.2 years and mean duration of diabetes mellitus was 9.39±7.4 years. Two hundreds and seventy-two (19.47%) patients were diagnosed as PAD by ABI <0.9, 122 (18.37%) in male and 150 (20.46%) in female. PAD patients had a significantly longer duration of diabetes mellitus, higher hemoglobin Alc, and a significantly lower mean body mass index than non-PAD ones. Aging, smoking, and systolic blood pressure were found to be positively related with the prevalence of PAD. In terms of lipid profiles, no variable was found to relate with PAD. Notably, baPWV showed as the same significant guiding index for PAD, almost matched with ABI. Conclusions PAD is a common complication in China type 2 diabetic patients. Therefore, PAD screening and treatment should be emphasized for diabetic patients with high risk factors.Heng Guan Yong-jun Li Zhang-rong XU Guang-wei Li Xiao-hui Guo Zhi-min Liu Da-jin Zou Hui-li Xing Wei Liu Zheng-yan Sheng Hao-ming Tian Da-long Zhu De-min YU Wei-te Zhuang Lu-lu Chen Jian-ping Weng 2007Chinese Medical Sciences Journal2007,22,2:41
2Chinese Multidisciplinary Expert Consensus on the Diagnosis and Treatment of Hyperuricemia and Related Diseases显示文摘Zou, He-Jian Wu, Hu-Sheng Zhou, Jing-Guo Zeng, Xue-Jun Dai, Lie Wu, Hua-Xiang Zhu, Xiao-Xia Mei, Chang-Lin Hao, Chuan-Ming Chen, Nan Liu, Bi-Cheng Chen, Jiang-Hua Yang, Li Nie, Jing Yu, Chen Peng, Ai Yu, Sheng-Qiang Li, Lin Ge, Jun-Bo Huo, Yong Zhang, Shu-Yang Chen, Yun-Dai Dong, Yu-Gang Liang, Chun Dai, Yu-Xiang Gao, Xin Li, Chang-Gui Zhao, Jia-Jun Chen, Hai-Bing Cheng, Zhi-Feng Lin, Huan-Dong Guan, Yang-Tai Wang, Kai Luo, Ben-Yan Dai, Ruo-Lian Jiang, Quan Xue, Luan Liang, Chao-Chao Chen, Ming Fan, Song 2017Chinese Medical Journal2017,,20:30
3Prevalence of Thyroid Nodules and Its Relationship with Iodine Status in Shanghai:a Population-based Study显示文摘Objective This study was designed to evaluate the prevalence of thyroid nodules(TNs) and its relationship with urine iodine concentrations(UICs) after the regional rapid economic growth and lifestyle changes. Methods A cross-sectional survey was conducted in the general population aged 15-69 years. A questionnaire regarding general and personal characteristics and relevant information was administered. Ultrasonography of the thyroid was performed, and serum triiodothyronine(T3), tetraiodothyronine(T4), serum thyroid stimulating hormone(TSH), free triiodothyronine(FT3), free tetraiodothyronine(FT4), thyroglobulin antibody(Tg Ab), thyroid peroxidase antibody(TPOAb), and TSH receptor antibody(TRAb) levels were measured for each individual subject. Results The prevalence rates of TNs in the whole population, females and males were 27.76%, 34.04%, and 21.60%, respectively. The prevalence of multiple nodules increased with age, whereas the prevalence peaks differed between males and females. The median UICs in the whole population and females with non-TNs were higher than those of subjects with TNs(P=0.0035, P=0.0068). The median UICs in subjects with a single TN were higher than those in subjects with multiple TNs(P=0.0164, P=0.0127). The result showed a U-shaped curve relationship between UIC and prevalence of TNs. The prevalence of TNs was the lowest when the UIC was 140-400 μg/L. Conclusion The prevalence of TNs was nearly 30% and increased with age. The relationship between UIC and prevalence of TNs is U-shaped, with an increase in risk when the UIC was <140 μg/L and >400 μg/L. Very low or high UIC levels need attention and correction.SONG Jun ZOU Shu Rong GUO Chang Yi ZANG Jia Jie ZHU Zhen Ni MI Ming HUANG Cui Hua YU Hui Ting LU Xi RUAN Ye WU Fan 2016Biomedical and Environmental Sciences2016,29,6:25
4Laparoscopic vs open D2 gastrectomy for locally advanced gastric cancer: A meta-analysis显示文摘AIM:To conduct a meta-analysis comparing laparoscopic(LGD2)and open D2 gastrectomies(OGD2)for the treatment of advanced gastric cancer(AGC).METHODS:Randomized controlled trials(RCTs)and non-RCTs comparing LGD2 with OGD2 for AGC treatment,published between 1 January 2000 and 12January 2013,were identified in the Pub Med,Embase,and Cochrane Library databases.Primary endpoints included operative outcomes(operative time,intraoperative blood loss,and conversion rate),postoperative outcomes(postoperative analgesic consumption,time to first ambulation,time to first flatus,time to first oralintake,postoperative hospital stay length,postoperative morbidity,incidence of reoperation,and postoperative mortality),and oncologic outcomes(the number of lymph nodes harvested,tumor recurrence and metastasis,disease-free rates,and overall survival rates).The Cochrane Collaboration tools and the modified Newcastle-Ottawa scale were used to assess the quality and risk of bias of RCTs and non-RCTs in the study.Subgroup analyses were conducted to explore the incidence rate of various postoperative morbidities as well as recurrence and metastasis patterns.A Begg’s test was used to evaluate the publication bias.RESULTS:One RCT and 13 non-RCTs totaling 2596patients were included in the meta-analysis.LGD2 in comparison to OGD2 showed lower intraoperative blood loss[weighted mean difference(WMD)=-137.87 m L,95%CI:-164.41--111.33;P<0.01],lower analgesic consumption(WMD=-1.94,95%CI:-2.50--1.38;P<0.01),shorter times to first ambulation(WMD=-1.03d,95%CI:-1.90--0.16;P<0.05),flatus(WMD=-0.98d,95%CI:-1.30--0.66;P<0.01),and oral intake(WMD=-0.85 d,95%CI:-1.67--0.03;P<0.05),shorter hospitalization(WMD=-3.08 d,95%CI:-4.38--1.78;P<0.01),and lower postoperative morbidity(odds ratio=0.78,95%CI:0.61-0.99;P<0.05).No significant differences were observed between LGD2 and OGD2 for the following criteria:reoperation incidence,postoperative mortality,number of harvested lymph nodes,tumor recurrence/metastasis,or three-or five-year diseasefree and overall survival rates.However,LGD2 had longer operative times(WMD=57.06 min,95%CI:41.87-72.25;P<0.01).CONCLUSION:Although a technically demanding and time-consuming procedure,LGD2 may be safe and effective,and offer some advantages over OGD2 for treatment of locally AGC.Zhen-Hong Zou Li-Ying Zhao Ting-Yu Mou Yan-Feng Hu Jiang Yu Hao Liu Hao Chen Jia-Ming Wu Sheng-Li An Guo-Xin Li 2014World Journal of Gastroenterology2014,20,44:25
5Assessment and sequencing of air target threat based on intuitionistic fuzzy entropy and dynamic VIKOR显示文摘In view of the fact that traditional air target threat assessment methods are difficult to reflect the combat characteristics of uncertain, dynamic and hybrid formation, an algorithm is proposed to solve the multi-target threat assessment problems. The target attribute weight is calculated by the intuitionistic fuzzy entropy(IFE) algorithm and the time series weight is gained by the Poisson distribution method based on multi-times data. Finally,assessment and sequencing of the air multi-target threat model based on IFE and dynamic Vlse Kriterijumska Optimizacija I Kompromisno Resenje(VIKOR) is established with an example which indicates that the method is reasonable and effective.ZHANG Kun KONG Weiren LIU Peipei SHI Jiao LEI Yu ZOU Jie 2018Journal of Systems Engineering and Electronics2018,29,2:24
6Acupuncture promotes functional recovery after cerebral hemorrhage by upregulating neurotrophic factor expression显示文摘Acupuncture is widely used in the treatment of cerebral hemorrhage,and it improves outcomes in experimental animal models and patients.However,the mechanisms underlying the effectiveness of acupuncture treatment for cerebral hemorrhage are still unclear.In this study,a model of intracerebral hemorrhage was produced by injecting 50μL autologous blood into the caudate nucleus in Wistar rats.Acupuncture at Baihui(DU20)and Qubin(GB7)acupoints was performed at a depth of 1.0 inch,12 hours after blood injection,once every 24 hours.The needle was rotated at 200 r/min for 5 minutes,For each 30-minute session,needling at 200 r/min was performed for three sessions,each lasting 5 minutes.For the positive control group,at 6 hours,and 1,2,3 and 7 days after induction of hemorrhage,the rats were intraperitoneally injected with 1 mL aniracetam(0.75 mg/mL),three times a day.The Bederson behavioral test was used to assess palsy in the contralateral limbs.Western blot assay was used to examine the expression levels of Nestin and basic fibroblast growth factor in the basal ganglia.Immunohistochemistry was performed to count the number of Nestin-and glial cell line-derived neurotrophic factor-positive cells in the basal ganglia.Acupuncture effectively reduced hemorrhage and brain edema,elevated the expression levels of Nestin and basic fibroblast growth factor in the basal ganglia,and increased the number of Nestin-and glial cell line-derived neurotrophic factor-positive cells in the basal ganglia.Together,these findings suggest that acupuncture promotes functional recovery after cerebral hemorrhage by increasing the expression of neurotrophic factors.The study was approved by the Committee for Experimental Animals of Heilongjiang Medical Laboratory Animal Center(approval No.2017061001)on June 10,2017.Dan Li Qiu-Xin Chen Wei Zou Xiao-Wei Sun Xue-Ping Yu Xiao-Hong Dai Wei Teng 2020Neural Regeneration Research2020,15,8:24
7Linkage Map Construction and Quantitative Trait Loci Analysis for Bolting Based on a Double Haploid Population of Brassica rapa显示文摘早白菜跑(Brassica 敲击 L.) 在春天期间,耕作经常在收获物的收益和质量上有有害效果。引起晚跑的变化是引起节目的白菜的一个主要目的。以便分析固定特点的基因基础, B 的一张遗传图谱。敲击一基于 amplifiedfragment 长度被构造多型性(AFLP ) ,顺序相关的放大多型性(SRAP ) , simplesequencerepeat (SSR ) ,多态的脱氧核糖核酸(RAPD ) 的随机的扩大,和 isozyme 标记。Markeranalysiswas 在线从二个同型结合的父母的 F_1progeny 由小孢子文化获得了的 81 双单倍体(DH ) 上执行了:B。敲 L。ssp, pekinensis (由)( 一根额外早跑的 Chinesecabbage 线) 并且 B。敲 L。ssp。raplfera (公里)( 一根额外迟了的跑的欧洲萝卜线) 。包括 130 AFLP, 123 SRAP, 16 SSR, 43RAPDs 和 14 isozymes 的 326 个标记的一个总数被用来与用在 loci 之间的 2.71 厘米的平均距离盖住 882 厘米的 10 个连接组一起构造一张连锁图。每根 DH 线的跑的特点被跑的索引 undercontrolledconditions 评估。量的特点 loci (QTL ) 分析用多重 QTL 模型 mappingwithMapQTLS.O 软件被进行。控制跑的抵抗的八 QTL 被识别。这些 QTL,为有积极加性效果的 phenotypic 变化的 14.1%to25.2% 的财务,被散布进三个连接组。Theseresults 为近来在白菜繁殖固定特点的帮助 molecularmarker 的选择提供有用信息程序。Xu Yang Yang-Jun Yu Feng-Lan Zhang Zhi-Rong Zou Xiu-Yun Zhao De-Shuang Zhang Jia-Bing Xu 2007Journal of Integrative Plant Biology2007,49,5:23
8Improved survival ratios correlate with myeloid dendritic cell restoration in acute-on-chronic liver failure patients receiving methylprednisolone therapy显示文摘Acute-on-chronic 肝失败(ACLF ) 是严重威胁生活的复杂并发症。肝移植是唯一的可得到的治疗学的选择;然而,几限制在病人限制了它的使用。为 ACLF 的可选的治疗收到了很多利息的 corticosteroids 的使用。在它的使用后面的基本原理是在开始并且永久维持肝的损坏的免疫系统的可能的角色。以便估计在 myeloid 之间的关系树枝状的房间(mDCs ) 和 methylprednisolone (MP ) 的功效为肝炎 B 病毒(HBV ) 的治疗联系了 ACLF 病人,我们招募了在 10 天的间隔接受了 MP 治疗的 30 个联系 HBV 的 ACLF 病人;26 个病人接待了保守人士医药(厘米) 管理作为控制。DC 子集的功能与健康题目相比在这些 ACLF 病人是更低的。与幸存者相比,另外, dead/transplanted 病人在两个组有更低的功能的 mDC。而且,一在基线的 mDC 的减少的数字与 ACLF 病人的高死亡被联系。重要地, MP 治疗在 28 天的死亡导致了重要减少,并且所有 MP 病人在 10 天 MP 治疗以内在传播 mDC 数字展出了起始的快速的减少。随后, MP 幸存者在超过 30 % 减少在全部的 bilirubin 层次伴随的 mDC 数字显示了连续增加;。然而, MP dead/transplanted 病人与幸存者相比缺乏这些顺序的回答。这条证据强烈建议在基线和在治疗的结束的 mDC 数字的恢复的更高的 mDC 数字可以在 ACLF 病人为对 corticosteroid 治疗的有利反应代表一个预示的标记。Juan Zhao Ji-Yuan Zhang Hong-Wei Yu Yu-Lan He Jing-Jing Zhao Juan Li Yue-Ke Zhu Qin-Wei Yao Jin-Huan Wang Hai-Xia Liu Shu-Yun Shi Zheng-Sheng Zou Xiang-Sheng Xu Chun-Bao Zhou Fu-Sheng Wang Qing-Hua Meng 2012Cellular & Molecular Immunology2012,9,5:23
9Acupuncture inhibits Notch1 and Hes1 protein expression in the basal ganglia of rats with cerebral hemorrhage显示文摘Notch pathway activation maintains neural stem cells in a proliferating state and increases nerve repair capacity. To date, studies have rarely focused on changes or damage to signal transduction pathways during cerebral hemorrhage. Here, we examined the effect of acupuncture in a rat model of cerebral hemorrhage. We examined four groups: in the control group, rats received no treatment. In the model group, cerebral hemorrhage models were established by infusing non-heparinized blood into the brain. In the acupuncture group, modeled rats had Baihui(DU20) and Qubin(GB7) acupoints treated once a day for 30 minutes. In the DAPT group, modeled rats had 0.15 μg/m L DAPT solution(10 m L) infused into the brain. Immunohistochemistry and western blot results showed that acupuncture effectively inhibits Notch1 and Hes1 protein expression in rat basal ganglia. These inhibitory effects were identical to DAPT, a Notch signaling pathway inhibitor. Our results suggest that acupuncture has a neuroprotective effect on cerebral hemorrhage by inhibiting Notch-Hes signaling pathway transduction in rat basal ganglia after cerebral hemorrhage.Wei Zou Qiu-xin Chen Xiao-wei Sun Qing-bin Chi Hong-yu Kuang Xue-ping Yu Xiao-hong Dai 2015Neural Regeneration Research2015,10,3:23
10miR-93 suppresses proliferation and colony formation of human colon cancer stem cells显示文摘AIM:To identify differentially expressed microRNAs(miRNAs) in human colon cancer stem cells(SW1116csc) and study their function in SW1116csc proliferation.METHODS:SW1116csc were isolated from the humancolon cancer cell line,SW1116 and cultured in serum free medium. A miRNA microarray was used to detect differential expression profiles of miRNAs in SW1116cscand SW1116 cells. Real-time quantitative polymer asechain reaction(PCR) was performed to verify the differential expression of candidate miRNAs obtainedfrom the microarray. Target mRNAs of differentially expressed miRNAs were predicted with target prediction tools. miRNA expression plasmids were transfectedinto SW1116csc using Lipofectamine 2000 reagent. Cellproliferation curves were generated with trypan bluestaining,and the colony formation rate of transfectedcells was measured with the soft agar colony formationassay. Expression of target mRNAs and proteins from differentially expressed miRNAs were detected usingreverse transcription(RT) -PCR and western blotting.RESULTS:Compared with expression in SW1116 cells,35 miRNAs(including hsa-miR-192,hsa-miR-29b,hsa-miR-215,hsa-miR-194,hsa-miR-33a and hsa-miR-32) were upregulated more than 1.5-fold,and 11miRNAs(including hsa-miR-93,hsa-miR-1231,hsa-miRPlus-F1080,hsa-miR-524-3p,hsa-miR-886-3p andhsa-miR-561) were downregulated in SW1116csc. The miRNA microarray results were further validated with quantitative RT-PCR. miR-93 was downregulated,and its predicted mRNA targets included BAMBI,CCND2,CDKN1A,HDAC8,KIF23,MAP3K9,MAP3K11,MYCN,PPARD,TLE4 and ZDHHC1. Over expressed miR-93 sig-nificantly in hibited cell proliferation and colony formation by SW1116csc. Furthermore,miR-93 negatively regulated the mRNA and protein levels of HDAC8 and TLE4.CONCLUSION:Some miRNAs were differentially expressed during differentiation of SW1116csc into SW1116cells. miR-93 may inhibit SW1116csc proliferation andcolony formation.Xiao-Feng Yu Jian Zou Zhi-Jun Bao Jie Dong 2011World Journal of Gastroenterology2011,17,42:21
11Comparison of 5-hydroxytryptophan signaling pathway characteristics in diarrhea-predominant irritable bowel syndrome and ulcerative colitis显示文摘AIM: To study differences in the visceral sensitivity of the colonic mucosa between patients with diarrheapredominant irritable bowel syndrome(IBS-D) and those with ulcerative colitis(UC) in remission and to relate these differences with changes in the 5-hydroxytryptophan(5-HT) signaling pathway. METHODS: Gastrointestinal symptoms were used to determine the clinical symptom scores and rectal visceral sensitivity of patients with IBS-D and patients with UC in remission. Blood levels of 5-HT and5-hydroxyindoleacetic acid(5-HIAA) were measured using an HPLC-electrochemical detection system. The levels of 5-HT 3 receptor(3R), 4R, and 7R m RNAs in colonic biopsy samples were detected using reverse transcription-polymerase chain reaction. The protein expression of TPH1 was analyzed by Western blot and immunohistochemistry.RESULTS: Abdominal pain or discomfort, stool frequency, and the scores of these symptoms in combination with gastrointestinal symptoms were higher in the IBS-D and UC groups than in the control groups. However, no significant differences were observed between the IBS-D and UC remission groups. With respect to rectal visceral sensitivity, the UC remission and IBS-D groups showed a decrease in the initial perception threshold, defecating threshold and pain threshold. However, these groups exhibited significantly increased anorectal relaxation pressure. Tests examining the main indicators of the 5-HT signaling pathway showed that the plasma 5-HT levels, 5-HIAA concentrations, TPH1 expression in the colonic mucosa, and 5-HT3 R and 5-HT5 R expression were increased in both the IBS-D and the UC remission groups; no increases were observed with respect to 5-HT7 R expression.CONCLUSION: The IBS-D and UC groups showed similar clinical symptom scores, visceral sensitivity, and levels of serotonin signaling pathway indicators in the plasma and colonic mucosa. However, the pain threshold and 5-HT7 R expression in the colonic mucosa were significantly different between these groups. The results reveal that(1) IBS-D and UC are related to visceral sensitivity pathogenesis and the clinical manifestations of these conditions and(2) the observed differences in visceral hypersensitivity are possibly due to differences in levels of the 5-HT7 receptor, a component of the 5-HT signaling pathway.Feng-Yan Yu Shao-Gang Huang Hai-Yan Zhang Hua Ye Hong-Gang Chi Ying Zou Ru-Xi Lv Xue-Bao Zheng 2016World Journal of Gastroenterology2016,22,12:19
12Simvastatin suppresses vascular inflammation and atherosclerosis in ApoE-/- mice by downregulating the HMGB1-RAGE axis显示文摘Ming LIU Ying Yu Hong JIANG Lei ZHANG Pei-pei ZHANG PengYU Jian-guo JIA Rui-zhen CHEN Yun-zeng ZOU Jun-bo GE 2013Acta Pharmacologica Sinica2013,34,6:18
13Investigation of quality of life in patients with lung cancer by the EORTC QLQ-C30(V3.0) Chinese version显示文摘Objective To explore quality of life(QOL) and its influencing factors in patients with lung cancer.Methods A QOL questionnaire(European Organization for Research and Treatment of Cancer [EORTC] Quality of Life Questionnaire-Core 30 [QLQ-C30] Chinese version) was used with 138 patients with lung cancer participating in the study. A statistical description of the general characteristics of the patients with lung cancer was performed. The patients' QLQ-C30 scores were compared with the reference value for each dimension. To analyze the influence of QOL in different genders, age groups, and cancer stages, ttests and rank sum tests were used to compare the differences in QOL using a 5% significance level. Results The QLQ-C30 function scores in PF(physical functioning), EF(emotional functioning), SF(social functioning), and GH(global functioning), and symptom scales in NV(nausea and vomiting), DY(dyspnea), SL(insomnia), and FI(financial difficulties) were significantly different(P < 0.05) in comparison to the reference values. Female patients were worse than males(P < 0.05) in EF, NV, and DI(diarrhea). The later the stage of lung cancer, the worse the quality of life became; the functional scales in RF(role functioning), EF, CF, SF, and GH, and symptom scales in PA(pain), AP(appetite), and SL differences were statistically significant(P < 0.05). Conclusion This study aids understanding of the status of the quality of life of Chinese patients with cancer and might be useful for clinical work, theory research, and health policymakers.Jun Li Xiaoguang Xiao Yao Wei Yang Li Man Zou Shiying Yu Yuan Chen Qian Chu 2015Oncology and Translational Medicine2015,1,3:18
14Effects of baicalin in CD4 + CD29 + T cell subsets of ulcerative colitis patients显示文摘AIM:To evaluate the role of baicalin in ulcerative colitis(UC) with regard to the CD4+CD29+ T helper cell,its surface markers and serum inflammatory cytokines.METHODS:Flow cytometry was used to detect the percentage of CD4+CD29+ cells in patients with UC.Real time polymerase chain reaction was used to detect expression of GATA-3,forkhead box P3,T-box expressed in T cells(T-bet),and retinoic acid-related orphan nuclear hormone receptor C(RORC).Western blotting was used to analyze expression of nuclear factor-κB(NF-κB) p65,phosphorylation of NF-κB(p-NF-κB) p65,STAT4,p-STAT4,STAT6 and p-STAT6.The concentrations of interferon-γ(IFN-γ),interleukin(IL)-4,IL-5,IL-6,IL-10 and TGF-β in serum were determined by ELISA assay.RESULTS:The percentages of CD4+CD29+ T cells were lower in treatment with 40 and 20 μmol/L baicalin than in the treatment of no baicalin.Treatment with 40 or 20 μmol/L baicalin significantly upregulated expression of IL-4,TGF-β1 and IL-10,increased p-STAT6/STAT6 ratio,but downregulated expression of IFN-γ,IL-5,IL-6,RORC,Foxp3 and T-bet,and decreased ratios of T-bet/GATA-3,p-STAT4/STAT4 and p-NF-κB/NF-κB compared to the treatment of no baicalin.CONCLUSION:The results indicate that baicalin regulates immune balance and relieves the ulcerative colitis-induced inflammation reaction by promoting proliferation of CD4+CD29+ cells and modulating immunosuppressive pathways.Feng-Yan Yu Shao-Gang Huang Hai-Yan Zhang Hua Ye Hong-Gang Chi Ying Zou Ru-Xi Lv Xue-Bao Zheng 2014World Journal of Gastroenterology2014,20,41:18
15Modeling,Control,and Protection of Modular Multilevel Converter-based Multi-terminal HVDC Systems:A Review显示文摘Multi-terminal direct current(MTDC)grids provide the possibility of meshed interconnections between regional power systems and various renewable energy resources to boost supply reliability and economy.The modular multilevel converter(MMC)has become the basic building block for MTDC and DC grids due to its salient features,i.e.,modularity and scalability.Therefore,the MMC-based MTDC systems should be pervasively embedded into the present power system to improve system performance.However,several technical challenges hamper their practical applications and deployment,including modeling,control,and protection of the MMC-MTDC grids.This paper presents a comprehensive investigation and reference in modeling,control,and protection of the MMC-MTDC grids.A general overview of state-of-the-art modeling techniques of the MMC along with their performance in simulation analysis for MTDC applications is provided.A review of control strategies of the MMC-MTDC grids which provide AC system support is presented.State-of-the art protection techniques of the MMCMTDC systems are also investigated.Finally,the associated research challenges and trends are highlighted.Lei Zhang Yuntao Zou Jicheng Yu Jiangchao Qin Vijay Vittal George G.Karady Di Shi Zhiwei Wang 2017CSEE Journal of Power and Energy Systems2017,3,4:17
16Polyamine Accumulation in Transgenic Tomato Enhances the Tolerance to High Temperature Stress显示文摘Polyamines play an important role in plant response to abiotic stress.S-adenosyl-l-methionine decarboxylase(SAMDC) is one of the key regulatory enzymes in the biosynthesis of polyamines.In order to better understand the effect of regulation of polyamine biosynthesis on the tolerance of high-temperature stress in tomato,SAMDC cDNA isolated from Saccharomyces cerevisiae was introduced into tomato genome by means of Agrobacterium tumefaciens through leaf disc transformation.Transgene and expression was confirmed by Southern and Northern blot analyses,respectively.Transgenic plants expressing yeast SAMDC produced 1.7-to 2.4-fold higher levels of spermidine and spermine than wild-type plants under high temperature stress,and enhanced antioxidant enzyme activity and the protection of membrane lipid peroxidation was also observed.This subsequently improved the efficiency of CO2 assimilation and protected the plants from high temperature stress,which indicated that the transgenic tomato presented an enhanced tolerance to high temperature stress(38℃) compared with wild-type plants.Our results demonstrated clearly that increasing polyamine biosynthesis in plants may be a means of creating high temperature-tolerant germplasm.Lin Cheng Yijing Zou Shuli Ding Jiajing Zhang Xiaolin Yu Jiashu Cao Gang Lu 2009Journal of Integrative Plant Biology2009,51,5:16
17Wnt and BMP signaling crosstalk in regulating dental stem cells:Implications in dental tissue engineering显示文摘Tooth is a complex hard tissue organ and consists of multiple cell types that are regulated by important signaling pathways such as Wnt and BMP signaling.Serious injuries and/or loss of tooth or periodontal tissues may significantly impact aesthetic appearance,essential oral functions and the quality of life.Regenerative dentistry holds great promise in treating oral/dental disorders.The past decade has witnessed a rapid expansion of our understanding of the biological features of dental stem cells,along with the signaling mechanisms governing stem cell self-renewal and differentiation.In this review,we first summarize the biological characteristics of seven types of dental stem cells,including dental pulp stem cells,stem cells from apical papilla,stem cells from human exfoliated deciduous teeth,dental follicle precursor cells,periodontal ligament stem cells,alveolar bone-derived mesenchymal stem cells(MSCs),and MSCs from gingiva.We then focus on how these stem cells are regulated by bone morphogenetic protein(BMP)and/or Wnt signaling by examining the interplays between these pathways.Lastly,we analyze the current status of dental tissue engineering strategies that utilize oral/dental stem cells by harnessing the interplays between BMP and Wnt pathways.We also highlight the challenges that must be addressed before the dental stem cells may reach any clinical applications.Thus,we can expect to witness significant progresses to be made in regenerative dentistry in the coming decade.Fugui Zhang Jinlin Song Hongmei Zhang Enyi Huang Dongzhe Song Viktor Tollemar Jing Wang Jinhua Wang Maryam Mohammed Qiang Wei Jiaming Fan Junyi Liao Yulong Zou Feng Liu Xue Hu Xiangyang Qu Liqun Chen Xinyi Yu Hue H.Luu Michael J.Lee Tong-Chuan He Ping Ji 2016Genes & Diseases2016,3,4:16
18End-stage liver disease score and future liver remnant volume predict post-hepatectomy liver failure in hepatocellular carcinoma显示文摘BACKGROUND Hepatocellular carcinoma(HCC)is the world’s sixth most common malignant tumor and the third cause of cancer death.Although great progress has been made in hepatectomy,it is still associated with a certain degree of risk of posthepatectomy liver failure(PHLF),which extends the length of hospital stay and remains the leading cause of postoperative death.Studies have shown that assessment of hepatic functional reserve before hepatectomy is beneficial for reducing the incidence of PHLF.AIM To assess the value of model for end-stage liver disease(MELD)score combined with standardized future liver remnant(sFLR)volume in predicting PHLF in patients undergoing hepatectomy for HCC.METHODS This study was attended by 238 patients with HCC who underwent hepatectomy between January 2015 and January 2018.Discrimination of sFLR volume,MELD score,and sFLR/MELD ratio to predict PHLF was evaluated according to the area under the receiver operating characteristic curve.RESULTS The patients were divided into two groups according to whether PHLF occurred after hepatectomy.The incidence of PHLF was 8.4%in our research.The incidence of PHLF increased with the decrease in sFLR volume and the increase in MELD score.Both sFLR volume and MELD score were considered independent predictive factors for PHLF.Moreover,the cut-off value of the sFLR/MELD score to predict PHLF was 0.078(P<0.001).This suggests that an sFLR/MELD≥0.078 indicates a higher incidence of PHLF than an sFLR/MELD<0.078.CONCLUSION MELD combined with sFLR is a reliable and effective PHLF predictor,which is superior to MELD score or sFLR volume alone.Fan-Hua Kong Xiong-Ying Miao Heng Zou Li Xiong Yu Wen Bo Chen Xi Liu Jiang-Jiao Zhou 2019World Journal of Clinical Cases2019,7,22:14
19High HIV incidence epidemic among men who have sex with men in china: results from a multi-site cross-sectional study显示文摘Background:Recent upsurge of new HIV infections among men who have sex with men(MSM)is a major concern in China.Paucity of national-level information regarding the burden and predictors of this progressive epidemic of new infections called for a multi-centric,timely and comprehensive investigation.Methods:Mixed methods were used to recruit MSM from seven cities in China between 2012 and 2013.Recent and established HIV infections were estimated by Western Blot and BED HIV-1 capture enzyme immunoassay.Syphilis and herpes simplex virus-2(HSV-2)were also tested.Results:A total of 4496 eligible MSM were recruited.The majority was aged≤35 years(77.5%),migrants(60.3%),never married(69.8%),and played receptive role in anal sex(70.5%).The HIV prevalence was 9.9%,and 41.9%were recently infected,with sensitivity/specificity adjusted HIV incidence of 8.9(95%CI:7.6-10.2)/100 Person-Years.The prevalence of history HSV-2 and syphilis were 12.5%and 8.5%,respectively.Recent HIV infection was associated with having multiple male partners(aOR=1.4,95%CI 1.1-1.9),recreational drug use(aOR=2.2,95%CI 1.6-3.0),anal bleeding(aOR=2.1,95%CI 1.4-3.0),syphilis infection(aOR=2.8,95%CI 1.9-4.3)and history HSV-2 infection(aOR=2.3,95%CI 1.5-3.3).Conclusion:High rate of recent HIV infection is potentially resulting in progressive deterioration of the overall HIV epidemic among MSM in China.Targeted interventions to address high-risk MSM including those having multiple partners,history of recreational drug use and syphilis or HSV-2 infection seemed to be the need of the hour.Jun-Jie Xu Wei-Ming Tang Hua-Chun Zou Tanmay Mahapatra Qing-Hai Hu Geng-Feng Fu Zhe Wang Lin Lu Ming-Hua Zhuang Xi Chen Ji-Hua Fu Yan-Qiu Yu Jin-Xin Lu Yong-Jun Jiang Wen-Qing Geng Xiao-Xu Han Hong Shang 2016Infectious Diseases of Poverty2016,5,1:14
20Novel and potent inhibitors targeting DHODH are broad-spectrum antivirals against RNA viruses including newly-emerged coronavirus SARS-CoV-2显示文摘Emerging and re-emerging RNA viruses occasionally cause epidemics and pandemics worldwide,such as the on-going outbreak of the novel coronavirus SARS-CoV-2.Herein,we identified two potent inhibitors of human DHODH,S312 and S416,with favorable drug-likeness and pharmacokinetic profiles,which all showed broad-spectrum antiviral effects against various RNA viruses,including influenza A virus,Zika virus,Ebola virus,and particularly against SARS-CoV-2.Notably,S416 is reported to be the most potent inhibitor so far with an EC5o of 17 nmol/L and an SI value of 10,505.88 in infec-ted cells.Our results are the first to validate that DHODH is an attractive host target through high antiviral efficacy in vivo and low virus replication in DHODH knock-out cells.This work demonstrates that both S312/S416 and old drugs(Leflunomide/Teriflunomide)with dual actions of antiviral and immuno-regulation may have clinical potentials to cure SARS-CoV-2 or other RNA viruses circulating worldwide,no matter such viruses are mutated or not.Rui Xiong Leike Zhang Shiliang Li Yuan Sun Minyi Ding Yong Wang Yongliang Zhao Yan Wu Weijuan Shang Xiaming Jiang Jiwei Shan Zihao Shen Yi Tong Liuxin Xu Yu Chen Yingle Liu Gang Zou Dimitri Lavillete Zhenjiang Zhao Rui Wang Lili Zhu Gengfu Xiao Ke Lan Honglin Li Ke Xu 2020Protein & Cell2020,11,10:14
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