维普中文期刊产品整合服务
429篇 您的检索式:作者名="Gang SHEN"
    题名 作者 年代 出处 被引量
1Disposable circumcision suture device: clinical effect and patient satisfaction显示文摘根据我们的经验,经历割礼的病人主要关于疼痛和阴茎外观被担心。我们进行了未来的使随机化的试用估计一台新可处理的割礼缝术设备(DCSD ) 的好处。942 个病人的一个总数同等地被划分成三个组(常规割礼,商戒指和可处理的缝术设备组) 。在 DCSD 组的病人是有化合物 5% lidocaine 乳脂的 anesthetized,其它与 2% lidocaine 阴茎块。操作时间, intra 起作用的血损失,切口愈合时间, intra 起作用、手术后的疼痛,阴茎外观和全面满足度被测量。操作时间和 intra 起作用的血损失与传统的组相比在商戒指和缝术设备组是显著地更低的(P <0.001 ) 。Intra 起作用的疼痛与另外的二个组相比是在缝术设备组的更少(P <0.001 ) ;而手术后的疼痛在与另外的二个组相比的传统的组是更高的(P <0.001 ) 。设备(80.57%) 和商戒指(73.57%) 组织的在缝术的病人是与常规割礼组相比对阴茎外观满意的更多(20.06% , P <0.05 ) 。在缝术设备组的病人也比传统的组快显著地愈合了(P <0.01 ) 。全面满足率在缝术设备组(78.66%) 更好与相比常规(47.13%) 并且商戒指(50.00%) 组(P <0.05 ) 。DCSD 和 lidocaine 乳脂的联合导致了更短的操作和切口愈合时间,减少了 intra 起作用、手术后的疼痛并且改进了对化妆外观的耐心的满足。Bo-Dong Lv Shi-Geng Zhang Xuan-Wen Zhu Jie Zhang Gang Chen Min-Fu Chen Hong-Liang Shen Zai-Jun Pei Zhao-Dian Chen 2014Asian Journal of Andrology2014,16,3:49
2The Genome of Artemisia annua Provides Insight into the Evolution of Asteraceae Family and Artemisinin Biosynthesis显示文摘Artemisia annua,通常已知的同样香甜的苦恼或 Qinghao,是到中国的一个灌木土著人并且长被用于药用的目的。A。annua 现在作为有势力抗疟药混合物的唯一的生来的来源全球性被栽培, artemisinin。这里,我们报导 A 的 1.74-gigabase 染色体的一个高质量的草稿集会。annua,高度异质接合,富于重复定序,并且包含 63 ? 226 编码蛋白质的基因,在定序的植物种类之中的最大的数字之一。我们发现了那,作为在 Asteraceae 的一些定序的染色体之一, A。annua 染色体包含对这大被子植物 clade 特定的很多基因。尤其是,扩大和编码涉及萜烯生合成的酶的基因的功能的多样化与 artemisinin biosynthetic 小径的进化一致。我们进一步由介绍那 A 的 transcriptome 揭示了。annua 发展了复杂 transcriptional 规章的网络位于 \O 下面 artemisinin 生合成。把转基因的 A 基于我们产生了的全面 genomic 和 transcriptomic 分析。artemisinin 高级的生产的 annua 线,它现在为大规模生产准备好了并且将从而帮助遇见增加 artemisinin 的全球需求的挑战。Qian Shen Lida Zhang Zhihua Liao Shengyue Wang Tingxiang Yan Pu Shi Meng Liu Xueqing Fu Qifang Pan Yuliang Wang Zongyou Lv Xu Lu Fangyuan Zhang Weimin Jiang Yanan Ma Minghui Chen Xiaolong Hao Ling Li Yueli Tang Gang Lv Yan Zhou Xiaofen Sun Peter E. Brodelius Jocelyn K.C. Rose Kexuan Tang 2018Molecular Plant2018,11,6:47
3An intriguing RNA species--perspectives of circularized RNA显示文摘圆形的 RNA (circRNAs ) ,一种 covalently 关上的 RNA 分子,被认为拼接 mis 事件的副产品的一种类型并且在早年里由于工艺的限制偶发地被发现。与象高产量的下一代的定序那样的大工艺的进步,众多的 circRNAs 最近在许多种类被检测了。CircRNAs 以一种时间空间地特定的方式被表示,建议他们的规章的功能的潜力以前被俯看。有趣地,某 circRNAs 确实在某些情形与批评生理的功能被发现。CircRNAs 有能抵抗到比作那些线性的 exoribonuclease 的更稳定的分子的结构,并且他们的分子的函数包括 microRNA 海绵,在抄写的规章的角色,与线性拼接竞争的 mRNA 陷井,为翻译并且可能的模板另外的一会儿未知的角色。这里,我们考察 circRNAs,起源和形成机制,生理的功能和分子的角色的发现和描述,与为 circRNAs 的察觉的方法一起。我们进一步调查未来并且建议关键问题为这些魔术的 RNA 分子被回答。Ting Shen Miao Han Gang Wei Ting Ni 2015Protein & Cell2015,6,12:29
4Role of vasoactive intestinal peptide and nitric oxide in the modulation of electroacupucture on gastric motility in stressed rats显示文摘AIM: To investigate the effects and mechanisms of vasoactive intestinal peptide (VIP) and nitric oxide (NO) in the modulation of electroacupucture (EA) on gastric motility in restrained-cold stressed rats. METHODS: An animal model of gastric motility disorder was established by restrained-cold stress. Gastric myoelectric activities were recorded by electrogastroent erography (EGG). VIP and NO concentrations in plasma and gastric mucosal and bulb tissues were detected by radioimmunoassay (RIA). VIP expression in the gastric walls was assayed using avidin-biotin-peroxidase complex (ABC) and image analysis. RESULTS: In cold restrained stressed rats, EGG was disordered and irregular. The frequency and amplitude of gastric motility were higher than that in control group (P < 0.01). VIP and NO contents of plasma, gastric mucosal and bulb tissues were obviously decreased (P < 0.01). Following EA at “Zusanli” (ST36), the frequency and amplitude of gastric motility were obviously lowered (P < 0.01), while the levels of VIP and NO in plasma, gastric mucosal and bulb tissues increased strikingly (P < 0.01, P < 0.05) and expression of VIP in antral smooth muscle was elevated significantly (P < 0.01) in comparison with those of model group. CONCLUSION: VIP and NO participate in the modulatory effect of EA on gastric motility. EA at “Zusanli” acupoint (ST36) can improve gastric motility of the stressed rats by increasing the levels of VIP and NO.Guo-Ming Shen Mei-Qi Zhou Guan-Sun Xu Ying Xu Gang Yin 2006World Journal of Gastroenterology2006,12,38:27
5Multicenter follow-up study of ankle fracture surgery显示文摘在从流行病学、临床的大 multicenter 的中国的脚关节破裂上的很少数据学习的背景是这研究的 available.The 目的是由考察在这研究包括了的 China.Methods 在五所医院经历了脚关节骨折外科的 235 个病人评估流行病学的特征和脚关节破裂的外科的结果经历了脚关节的病人折断外科在到2009年7月 .Age 的从2000年1月的五所中国医院,性,损害的机制, Arbeitsgemeinschaft fXU Hai-lin LIU Li-min LI Xuan ZHANG Dian-ying FU Zhong-guo WANG Tian-bing ZHANG Pei-xun JIANG Bao-guo SHEN Hui-liang WANG Gang WANG Guang-lin WU Xin-bao 2012Chinese Medical Journal2012,,4:27
6Sulforaphane protects liver injury induced by intestinal ischemia reperfusion through Nrf2-ARE pathway显示文摘AIM: To investigate the effect of sulforaphane (SFN) on regulation of NF-E2-related factor-2 (Nrf2)-antiox-idant response element (ARE) pathway in liver injury induced by intestinal ischemia/reperfusion (I/R). METHODS: Rats were divided randomly into four ex-perimental groups: control, SFN control, intestinal I/R and SFN pretreatment groups (n = 8 in each group). The intestinal I/R model was established by clamping the superior mesenteric artery for 1 h and 2 h reperfu-sion. In the SFN pretreatment group, surgery was performed as in the intestinal I/R group, with intraperitoneal administration of 3 mg/kg SFN 1 h before the op-eration. Intestine and liver histology was investigated. Serum levels of aspartate aminotransferase (AST), and alanine aminotransferase (ALT) were measured. Liver tissue superoxide dismutase (SOD), myeloperoxidase (MPO), glutathione (GSH) and glutathione peroxidase (GSH-Px) activity were assayed. The liver transcription factor Nrf2 and heme oxygenase-1 (HO-1) were determined by immunohistochemical analysis and Western blotting analysis.RESULTS: Intestinal I/R induced intestinal and liver injury, characterized by histological changes as well as a signif icant increase in serum AST and ALT levels (AST: 260.13 ± 40.17 U/L vs 186.00 ± 24.21 U/L, P < 0.01; ALT: 139.63 ± 11.35 U/L vs 48.38 ± 10.73 U/L, P < 0.01), all of which were reduced by pretreatment with SFN, respectively (AST: 260.13 ± 40.17 U/L vs 216.63 ± 22.65 U/L, P < 0.05; ALT: 139.63 ± 11.35 U/L vs 97.63 ± 15.56 U/L, P < 0.01). The activity of SOD in the liver tissue decreased after intestinal I/R (P < 0.01), which was enhanced by SFN pretreatment (P < 0.05). In ad-dition, compared with the control group, SFN markedly reduced liver tissue MPO activity (P < 0.05) and elevat-ed liver tissue GSH and GSH-Px activity (P < 0.05, P < 0.05), which was in parallel with the increased level of liver Nrf2 and HO-1 expression.CONCLUSION: SFN pretreatment attenuates liver injury induced by intestinal I/R in rats, attributable to the antioxidant effect through Nrf2-ARE pathway.Zhao, Hai-Dong Zhang, Feng Shen, Gang Li, Yu-Bing Li, Ying-Hua Jing, Hui-Rong Ma, Ling-Fei Yao, Ji-Hong Tian, Xiao-Feng 2010World Journal of Gastroenterology2010,16,24:23
7The second natural gas hydrate production test in the South China Sea显示文摘Clayey silt reservoirs bearing natural gas hydrates(NGH)are considered to be the hydrate-bearing reservoirs that boast the highest reserves but tend to be the most difficult to exploit.They are proved to be exploitable by the first NGH production test conducted in the South China Sea in 2017.Based on the understanding of the first production test,the China Geological Survey determined the optimal target NGH reservoirs for production test and conducted a detailed assessment,numerical and experimental simulation,and onshore testing of the reservoirs.After that,it conducted the second offshore NGH production test in 1225 m deep Shenhu Area,South China Sea(also referred to as the second production test)from October 2019 to April 2020.During the second production test,a series of technical challenges of drilling horizontal wells in shallow soft strata in deep sea were met,including wellhead stability,directional drilling of a horizontal well,reservoir stimulation and sand control,and accurate depressurization.As a result,30 days of continuous gas production was achieved,with a cumulative gas production of 86.14×104 m3.Thus,the average daily gas production is 2.87×10^4 m^3,which is 5.57 times as much as that obtained in the first production test.Therefore,both the cumulative gas production and the daily gas production were highly improved compared to the first production test.As indicated by the monitoring results of the second production test,there was no anomaly in methane content in the seafloor,seawater,and atmosphere throughout the whole production test.This successful production test further indicates that safe and effective NGH exploitation is feasible in clayey silt NGH reservoirs.The industrialization of hydrates consists of five stages in general,namely theoretical research and simulation experiments,exploratory production test,experimental production test,productive production test,and commercial production.The second production test serves as an important step from the exploratory production test to experimental production test.Jian-liang Ye Xu-wen Qin Wen-wei Xie Hai-long Lu Bao-jin Ma Hai-jun Qiu Jin-qiang Liang Jing-an Lu Zeng-gui Kuang Cheng Lu Qian-yong Liang Shi-peng Wei Yan-jiang Yu Chunsheng Liu Bin Li Kai-xiang Shen Hao-xian Shi Qiu-ping Lu Jing Li Bei-bei Kou Gang Song Bo Li He-en Zhang Hong-feng Lu Chao Ma Yi-fei Dong Hang Bian 2020China Geology2020,3,2:22
8Ratios of T-helper 2 Cells to T-helper 1 Cells and Cytokine Levels in Patients with Hepatitis B显示文摘Ming-Hui Li Dan Zhang Lu Zhang Xiao-Jing Qu Yao Lu Ge Shen Shu-Ling Wu Min Chang Ru-Yu Liu Lei-Ping Hu Hong-Xiao Hao Wen-Hao Hua Shu-Jing Song Gang Wan Shun-Ai Liu Yao Xie 2017Chinese Medical Journal2017,,15:21
9Precise nanomedicine for intelligent therapy of cancer显示文摘Precise nanomedicine has been extensively explored for efficient cancer imaging and targeted cancer therapy, as evidenced by a few breakthroughs in their preclinical and clinical explorations. Here, we demonstrate the recent advances of intelligent cancer nanomedicine, and discuss the comprehensive understanding of their structure-function relationship for smart and efficient cancer nanomedicine including various imaging and therapeutic applications, as well as nanotoxicity. In particular, a few emerging strategies that have advanced cancer nanomedicine are also highlighted as the emerging focus such as tumor imprisonment, supramolecular chemotherapy, and DNA nanorobot. The challenge and outlook of some scientific and engineering issues are also discussed in future development. We wish to highlight these new progress of precise nanomedicine with the ultimate goal to inspire more successful explorations of intelligent nanoparticles for future clinical translations.Huabing Chen Zhanjun Gu Hongwei An Chunying Chen Jie Chen Ran Cui Siqin Chen Weihai Chen Xuesi Chen Xiaoyuan Chen Zhuo Chen Baoquan Ding Qian Dong Qin Fan Ting Fu Dayong Hou Qiao Jiang Hengte Ke Xiqun Jiang Gang Liu Suping Li Tianyu Li Zhuang Liu Guangjun Nie Muhammad Ovais Daiwen Pang Nasha Qiu Youqing Shen Huayu Tian Chao Wang Hao Wang Ziqi Wang Huaping Xu Jiang-Fei Xu Xiangliang Yang Shuang Zhu Xianchuang Zheng Xianzheng Zhang Yanbing Zhao Weihong Tan Xi Zhang Yuliang Zhao 2018Science China Chemistry2018,61,12:19
10The Association between Lower Incisal Inclination and Morphology of the Supporting Alveolar Bone—A Cone-Beam CT Study显示文摘Aim To investigate the relationship between the positioning of the lower central incisor and physical morphology of the surrounding alveolar bone. Methodology Thirty-eight patients (18 males, 20 females), with mean age of 13.4 years, were included in this study. As part of orthodontic treatment planning the patients were required to take dental Cone-beam CT (CBCT) covering the region of lower incisors, the surrounding alveolar bone and the mandibular symphysis. The cephalometric parameters were designed and measured to indicate the inclination of lower central incisor and physical morphology of the adjacent alveolar bone. Computer-aided descriptive statistical analysis was performed using SPSS 15.0 software package for Windows. A correlation analysis and a linear regression analysis between the incisor inclination and the alveolar bone morphology were performed. Results Significant positive correlations were found between the lower central incisor inclination and the morphological contour of the alveolar bone (P<0.05). The lower central incisor root apex was closer to the lingual alveolar crest when it was buccally inclined. Conclusion The morphology of the alveolar bone may be affected by incisal inclination.Quan Yu Xiao-gang Pan Guo-ping Ji Gang Shen 2009International Journal of Oral Science2009,1,4:19
11Darwin:a neuromorphic hardware co-processor based on Spiking Neural Networks显示文摘Broadly speaking, the goal of neuromorphic engineering is to build computer systems that mimic the brain. Spiking Neural Network(SNN) is a type of biologically-inspired neural networks that perform information processing based on discrete-time spikes, different from traditional Artificial Neural Network(ANN).Hardware implementation of SNNs is necessary for achieving high-performance and low-power. We present the Darwin Neural Processing Unit(NPU), a neuromorphic hardware co-processor based on SNN implemented with digitallogic, supporting a maximum of 2048 neurons, 20482= 4194304 synapses, and 15 possible synaptic delays.The Darwin NPU was fabricated by standard 180 nm CMOS technology with an area size of 5 × 5 mm2and70 MHz clock frequency at the worst case. It consumes 0.84 m W/MHz with 1.8 V power supply for typical applications. Two prototype applications are used to demonstrate the performance and efficiency of the hardware implementation.Juncheng SHEN De MA Zonghua GU Ming ZHANG Xiaolei ZHU Xiaoqiang XU Qi XU Yangjing SHEN Gang PAN 2016Science China(Information Sciences)2016,59,2:18
12Efficacy and safety of sunitinib in the treatment of metastatic renal cell carcinoma显示文摘背景酷氨酸 kinase 禁止者(TKI ) sunitinib,为变形肾的房间癌(RCC ) 的第一线治疗的首先指向的代理人,指向脉管的 endothelial 生长因素(VEGF ) 小径。如果高血压是有效预兆的 factor.Methods,这研究的目的是在对待变形清楚房间的 RCC 调查 sunitinib 的功效和安全并且证实有变形 RCC 的 36 个病人的一个总数在 2008 年 6 月和 2010 年 12 月之间被注册。在他们之中, 29 个案例是第一线治疗, 7 个案例在首要的 cytokine 或 sorafinib 治疗上的前进。所有病人的病理被证实在清楚的房间类型占优势。Sunitinib 单音治疗在每日的口头的治疗的重复 6 星期的周期被管理 4 个星期,到 2 个星期列在后面离开在 34 个病人;并且 3 个病人连续地与 37.5 mg/d 被管理直到疾病前进或不能接受的毒性发生了。全面反应率和安全被评估。我们根据中部的后续是的血压 level.Results 把病人划分了成组 A 和组 B 15 个月(10 个周期,范围 1.5-30.0 月(1-20 周期)) 。十个病人(29.4 ) 完成了部分回答(PR ) ;23 个病人(67.6 ) 表明了持续 2 个周期的稳定的疾病(SD ) 。十七个病人(50 ) 在后续期间得了进步疾病(PD ) 。中部的没有前进的幸存(PFS ) 是 15 个月(范围 3.0-28.5 ) 月。9 个病人的一个总数死了;全面幸存没被到达;死亡病人的中部的幸存时间是 13 个月(范围 7-24 ) 月。最普通的不利事件是手脚症候群(77.8 ) , thrombocytopenia (75.0 ) ,高血压(61.1 ) 和腹泻(46.0 ) 。最不利的事件由治疗打断是可逆的。22 个病人(61.1 ) 得了高血压;并且高血压与很长时间被联系到疾病前进和长全面的幸存(P=0.004, 0.000,分别地) 这研究的结果表明的 .Conclusions 功效和可管理的不利事件与变形清楚的房间 RCC 为病人在首要或第二线的治疗作为一个单个代理人 sunitinib 介绍。进一步,联系 sunitinib 的高血压可以是为在变形 RCC 的治疗功效的一个强壮的预兆的标记。LI Xue-song WU Xiang ZHAO Peng-ju HUANG Li-hua SONG Yi GONG Kan SHEN Cheng YU Wei SONG Gang ZHAO Zheng ZHANG Zheng ZHANG Qian WANG Gang HE Zhi-song ZHOU Li-qun JIN Jie 2011Chinese Medical Journal2011,,18:17
13Association of Cytokines with Alanine Aminotransferase, Hepatitis B Virus Surface Antigen and Hepatitis B Envelope Antigen Levels in Chronic Hepatitis B显示文摘Ming-Hui Li Yao Lu Lu Zhang Xing-Yue Wang Chong-Ping Ran Hong-Xiao Hao Dan Zhang Xiao-Jing Qu Ge Shen Shu-Ling Wu Wei-Hua Cao Tian-Lin Qi Ru-Yu Liu Lei-Ping Hu Min Chang Wen-Hao Hua Shun-Ai Liu Gang Wan Yao Xie 2018Chinese Medical Journal2018,,15:17
14Plasmacytoid Dendritic Cell Function and Cytokine Network Profiles in Patients with Acute or Chronic Hepatitis B Virus Infection显示文摘Ming-Hui Li Lu Zhang Dan Zhang Wei-Hua Cao Tian-Lin Qi Hong-Xiao Hao Xing-Yue Wang Chong-Ping Ran Xiao-Jing Qu Shun-Ai Liu Yao Lu Ge Shen Shu-Ling Wu Min Chang Ru-Yu Liu Lei-Ping Hu Wen-Hao Hua Gang Wan Jun Cheng Yao Xie 2018Chinese Medical Journal2018,,1:16
15Loss of YTHDF2-mediated m6A-dependent mRNA clearance facilitates hematopoietic stem cell regeneration显示文摘Hu Wang Hongna Zuo Jin Liu Fei Wen Yawei Gao Xudong Zhu Bo Liu Feng Xiao Wengong Wang Gang Huang Bin Shen Zhenyu JU 2018Cell Research2018,28,10:16
16The Predictive Value of Baseline HBs Ag Level and Early Response for HBs Ag Loss in Patients with HBe Ag-positive Chronic Hepatitis B during Pegylated Interferon Alpha-2a Treatment显示文摘Objective To explore the predictive value of baseline HBsAg level and early response for HBsAg loss in patients with HBeAg-positive chronic hepatitis B during pegylated interferon alpha-2a treatment. Methods A total of 121 patients with HBeAg-positive chronic hepatitis B who achieved HBsAg loss were enrolled; all patients were treated with PEG-IFNα-2a 180 μg/week. Serum HBV DNA and serological indicators(HBsAg, anti-HBs, HBeAg, and anti-HBe) were determined before and every 3 months during treatment. Results The median treatment time for HBsAg loss was 84 weeks(7-273 weeks), and 74.38%(90 cases) of the patients needed extended treatment(> 48 weeks). The correlation between baseline HBsAg levels and the treatment time of HBsAg loss was significant(B = 14.465, t = 2.342, P = 0.021). Baseline HBsAg levels together with the decline range of HBsAg at 24 weeks significantly correlated with the treatment time of HBsAg loss(B = 29.862, t = 4.890, P = 0.000 and B = 27.993, t = 27.993, P = 0.005). Conclusion Baseline HBsAg levels and extended therapy are critical steps toward HBsAg loss. Baseline HBsAg levels together with early response determined the treatment time of HBsAg loss in patients with HBeAg-positive chronic hepatitis B during pegylated interferon alpha-2a treatment.LI Ming Hui ZHANG Lu QU Xiao Jing LU Yao SHEN Ge LI Zhen Zhen WU Shu Ling LIU Ru Yu CHANG Min HU Lei Ping HUA Wen Hao SONG Shu Jing WAN Gang XIE Yao 2017Biomedical and Environmental Sciences2017,30,3:14
17Novel 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
18Efficacy of Solitaire AB stent-release angioplasty in acute middle cerebral artery atherosclerosis obliterative cerebral infarction显示文摘BACKGROUND In both national and international studies,the safety and effectiveness of treatment with the Solitaire stent in patients with ischemic stroke caused by acute large vessel occlusion were good,and the disability rate was significantly reduced.However,there are currently only a few reports on the differences in endovascular treatment for different etiological classifications,especially in the anterior cranial circulation,aorta atherosclerotic stenosis,and acute thrombosis.AIM To investigate the efficacy of Solitaire AB stent-release angioplasty in patients with acute middle cerebral artery atherosclerosis obliterative cerebral infarction.METHODS Twenty-five patients with acute middle cerebral atherosclerosis obliterative cerebral infarction were retrospectively enrolled in this study from January 2017 to December 2019.The Solitaire AB stent was used to improve anterior blood flow to maintain modified cerebral infarction thrombolysis[modified thrombolysis in cerebral infarction(mTICI)]at the 2b/3 level or above,the stent was then unfolded and released.RESULTS All 25 patients underwent successful surgery,with an average recanalization time of 23 min.One patient died of cerebral hemorrhage and cerebral herniation after the operation.The National Institutes of Health Stroke Scale(NIHSS)scores immediately after surgery(7.5±5.6),at 24 h(5.5±5.6)and at 1 wk(3.6±6.7)compared with the preoperative NIHSS score(15.9±4.4),were significantly different(P<0.01).One case of restenosis was observed 3 mo after surgery(the stenosis rate was 50%without clinical symptoms),the modified Rankin scale scores were 0 points in 14 cases(56%),1 point in 4 cases(16%),2 points in 2 cases(8%),3 points in 3 cases(12%),4 points in 1 case(4%),and 6 points in 1 case(4%).CONCLUSION In acute middle cerebral artery atherosclerosis obliterative cerebral infarction,when the Solitaire AB stent is unfolded and the forward blood flow is maintained at mTICI level 2b/3 or higher,stent release may be a safe and effective treatment method;however,long-term observation and a larger sample size are required to verify these findings.Xi-Feng Wang Ming Wang Gang Li Xue-Yu Xu Wei Shen Jing Liu Shuang-Shuang Xiao Jiang-Hong Zhou 2021World Journal of Clinical Cases2021,9,19:14
19Bufalin induces apoptosis in human osteosarcoma U-2OS and U-2OS methotrexate300-resistant cell lines显示文摘Aim:To investigate the antiproliferative activity and apoptosis-inducing effectsof bufalin on human osteosarcoma cell lines.Methods:U-2OS and U-2OS meth-otrexate (MTX) 300-resistant cell lines were treated with bufalin.Cell viability wasassessed using the MTT assay.Cell-cycle status,apoptosis-inducing effects,and the expression of apoptosis-related proteins were evaluated by flow cytometry,fluorescent staining,DNA fragmentation assays,and Western blotting.The ef-fect of bufalin on dihydrofolate reductase (DHFR) expression was studied by RT-PCR and Western blotting.Results:Bufalin inhibited cell growth in both U-2OSand U-2OS MTX300 cells.The induction of G_2/M cell-cycle arrest was also seenin the cells treated with bufalin.The induction of apoptosis by bufalin was con-firmed by increased expression of the tumor suppressor protein p53 and the in-creased ratio of the Bax/Bcl-2 proteins.Bufalin induced apoptosis to the sameextent in both cell lines without regard to DHFR levels in the cells.Conclusion:Bufalin inhibited the growth of and induced apoptosis in both MTX-sensitive andMTX-resistant human osteosarcoma U-2OS cells.The apoptosis-inducing effectof bufalin was not influenced by the presence of high levels of the DHFR protein.Jun-qiang,YIN Jing-nan SHEN Wei-wei SU Jin WANG Gang HUANG Song JIN Qian-chen GUO Chang-ye ZOU Hao-miao LI Fo-bao LI 2007Acta Pharmacologica Sinica2007,28,5:13
20Response of Ecosystem Respiration to Experimental Warming and Clipping at Daily Time Scale in an Alpine Meadow of Tibet显示文摘The alpine meadow,as one of the typical vegetation types on the Tibetan Plateau,is one of the most sensitive terrestrial ecosystems to climate warming.However,how climate warming affects the carbon cycling of the alpine meadow on the Tibetan Plateau is not very clear.A field experiment under controlled experimental warming and clipping conditions was conducted in an alpine meadow on the Northern Tibetan Plateau since July 2008.Open top chambers(OTCs) were used to simulate climate warming.The main objective of this study was to examine the responses of ecosystem respiration(R eco) and its temperature sensitivity to experimental warming and clipping at daily time scale.Therefore,we measured R eco once or twice a month from July to September in 2010,from June to September in 2011 and from August to September in 2012.Air temperature dominated daily variation of Reco whether or not experimental warming and clipping were present.Air temperature was exponentially correlated with R eco and it could significantly explain 58~96% variation of R eco at daily time scale.Experimental warming and clipping decreased daily mean R eco by 5.8~37.7% and-11.9~23.0%,respectively,although not all these changes were significant.Experimental warming tended to decrease the temperature sensitivity of R eco,whereas clipping tended to increase the temperature sensitivity of R eco at daily time scale.Our findings suggest that R eco was mainly controlled by air temperature and may acclimate to climate warming due to its lower temperature sensitivity under experimental warming at daily time scale.FU Gang SHEN Zhen-xi ZHANG Xian-zhou YU Cheng-qun ZHOU Yu-ting LI Yun-long YANG Peng-wan 2013Journal of Mountain Science2013,10,3:13
返回顶部 每页显示:
共22页 首页 上一页 第1页 下一页 末页 /22 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费