维普中文期刊产品整合服务
111篇 您的检索式:作者名="Shuo Dong"
    题名 作者 年代 出处 被引量
1Programmable time-domain digital-coding metasurface for non-linear harmonic manipulation and new wireless communication systems显示文摘Optical non-linear phenomena are typically observed in natural materials interacting with light at high intensities, and they benefit a diverse range of applications from communication to sensing. However,controlling harmonic conversion with high efficiency and flexibility remains a major issue in modern optical and radio-frequency systems. Here, we introduce a dynamic time-domain digital-coding metasurface that enables efficient manipulation of spectral harmonic distribution. By dynamically modulating the local phase of the surface reflectivity, we achieve accurate control of different harmonics in a highly programmable and dynamic fashion, enabling unusual responses, such as velocity illusion. As a relevant application, we propose and realize a novel architecture for wireless communication systems based on the time-domain digital-coding metasurface, which largely simplifies the architecture of modern communication systems, at the same time yielding excellent performance for real-time signal transmission. The presented work, from new concept to new system, opens new pathways in the application of metamaterials to practical technology.Jie Zhao Xi Yang Jun Yan Dai Qiang Cheng Xiang Li Ning Hua Qi Jun Chen Ke Guo Dong Bai Shuo Liu Shi Jin Andrea Alù Tie Jun Cui 2019National Science Review2019,6,2:46
2Direct Transmission of Digital Message via Programmable Coding Metasurface显示文摘In modern wireless communications,digital information is frstly converted to analog signal by a digital-analog convertor,which is then mixed to high-frequency microwave to be transmitted through a series of devices including modulator,mixer,amplifer,flter,and antenna and is fnally received by terminals via a reversed process.Although the wireless communication systems have evolved signifcantly over the past thirty years,the basic architecture has not been challenged.Here,we propose a method to transmit digital information directly via programmable coding metasurface.Since the coding metasurface is composed of‘0’and‘1’digital units with opposite phase responses,the digital information can be directly modulated to the metasurface with certain coding sequences and sent to space under the illumination of feeding antenna.Te information,being modulated in radiation patterns of the metasurface,can be correctly received by multiple receivers distributed in diferent locations.Tis method provides a completely new architecture for wireless communications without using complicated digital-analog convertor and a series of active/passive microwave devices.We build up a prototype to validate the new architecture experimentally,which may fnd promising applications where information security is highly demanded.Tie Jun Cui Shuo Liu Guo Dong Bai Qian Ma 2019Research2019,,1:20
3APPLICATION OF WHOLE BODY DIFFUSION WEIGHTED MR IMAGING FOR DIAGNOSIS AND STAGING OF MALIGNANT LYMPHOMA显示文摘Objective To evaluate the clinical impact of whole body diffusion weighted imaging (WB-DWI) on diagnosis and staging of malignant lymphoma. Methods Thirty-one patients with suspected lymphadenopathy were enrolled. WB-DWI was performed by using short TI inversion recovery echo-planar imaging sequence with free breathing and built-in body coil. Axial T2- weighted imaging images of the same location were used as reference. The results of WB-DWI were compared with pathological results and other imaging modalities. The mean apparent diffusion coefficient (ADC) values of different kinds of lymph nodes were compared. Results WB-DWI was positive in all 18 cases with lymphoma, 5 cases with metastatic lymph nodes and 4 of 8 cases with benign lymphadenopathy. The mean ADC value of lymphomatous, metastatic and benign lymph nodes was (0.87 ± 0.17) × 10-3, (0.98 ± 0.09) × 10-3 and (1.20 ± 0.10) × 10-3 mm2/s. There was significant difference in ADC value between benign lymph nodes and other two groups (P < 0.01). The sensitivity, specificity and accuracy of WB-DWI in diagnosis of lymphoma were 100% (18/18), 30.8% (4/13) and 71.0% (22/31). When an ADC value of 1.08 × 10-3 mm2/s was used as the threshold value for differentiating malignant from benign lymph nodes, the best results were obtained with sensitivity of 87.8% and specificity of 91.3%. Sixteen of eighteen cases (88.9%) of lymphoma were accurately staged in accordance with clinical staging. Conclusions WB-DWI is a sensitive, but less specific technique for diagnosis of lymphoma. It is difficult to differentiate lymphomatous from metastatic lymph nodes using WB-DWI. However, it is a valuable imaging modality for staging of patients with malignant lymphoma.Shuo Li Hua-dan Xue Jian Li Fei Sun Bo Jiang Dong Liu Hong-yi Sun Zheng-yu Jin 2008Chinese Medical Sciences Journal2008,23,3:18
4The X-linked mental retardation gene PHF8 is a histone demethylase involved in neuronal differentiation显示文摘最近的研究在 PHF8 识别了变化,编码 JmjC 的 X 连接基因包含域的蛋白质,为 X 连接智力迟钝(XLMR ) 的一个原因的因素并且劈开 lip/cleft 腭。然而,内在的机制是未知的。这里,我们证明 PHF8 为 retinoic 酸受体(RAR ) 是 histone demethylase 和激活剂。尽管为 H3K4me3/2/1 和 H3K9me2/1 demethylation 的活动在细胞底的试金被检测, recombinant PHF8 在 vitro 展出了仅仅 H3K9me2/1 demethylase 活动,建议 PHF8 是其特性可以在 vivo 被调制的 H3K9me2/1 demethylase。重要地,在 XLMR 病人识别的变异的 PHF8 (在到丝氨酸的位置 279 点的本氨基丙酸) 在酶的活动是有缺点的,显示 histone demethylase 活动的损失有原因地与疾病的发作被连接。另外,我们证明 PHF8 经由一个 N 终端哲学博士手指领域明确地绑在 H3K4me3/2 肽。与为在 neuronal 区别的 PHF8 的一个角色一致,在鼠标的 PHF8 击倒胚胎的癌 P19 房间损害导致 RA 的 neuronal 区别,而 overexpression 野类型然而并非向 neuronal 区别的 F279S 变异的 PHF8 驱动器 P19 房间。而且,我们证明 PHF8 为 RAR 伪作为激活剂与 RAR 伪和功能交往。一起拿,我们的结果建议 PHF8 调制的 histone methylation 在 neuronal 区别起一个关键作用。Jihui Qiu Guang Shi Yuanhui Jia Jing Li Meng Wu Jiwen Li Shuo Dong Jiemin Wong 2010Cell Research2010,20,8:16
5MR DIFFUSION WEIGHTED IMAGING FOR EVALUATION OF RADIOTHERAPEUTIC EFFECTS ON RABBIT VX2 TUMOR MODEL显示文摘Objective To investigate the feasibility of magnetic resonance (MR) diffusion weighted imaging (DWI) for evaluation of radiotherapeutic effects on rabbit VX2 tumor model. Methods Sixteen New Zealand white rabbits received a subcutaneous implantation of VX2 tumor cell suspension 0.5 mL (4×107 cells/mL) in their right thighs to set up tumor model. And 2 weeks later they were randomly divided into therapy group (Group T, n = 10) and control group (Group C, n = 6). Group T received radiotherapy at a single dose of 10 Gy. MR imaging (MRI) scan including short TI inversion recovery echo-planar imaging DWI, T1-weighted imaging (T1WI) and T2-weighted imaging (T2WI) sequences were performed 1 day prior to as well as 1 day, 2 days, 3 days and 7 days after radiotherapy. Group C received only MRI scan at the same time points without any treatment. MRI appearance on T2WI, T1WI, and DWI images was compared and tumor volume was calculated. Apparent diffusion coefficient (ADC) values of the tumor were evaluated in all cases. HE staining was used for pathological study. Results Necrosis (n = 8) and hemorrhage (n = 2) were seen gradually on T2WI and T1WI images of Group T after time point of day 2 after irradiation. In Group C, no obvious necrosis was found until day 7. There was no significant difference in tumor volume between the two groups before radiotherapy. After radiotherapy, tumors in Group T showed a gradual growth but not as obvious as Group C. There was a significant difference in tumor volume between the two groups from day 2 on (P < 0.05). ADC value changed dramatically right from the 1st day after radio- therapy in Group T [(0.99 ± 0.15) ×10-3 mm2/s for 1 day before radiotherapy, (1.23 ± 0.08) ×10-3, (1.45 ± 0.07) ×10-3, (1.63 ± 0.06) ×10-3, and (2.02 ± 0.18) ×10-3 mm2/s for day 1, 2, 3, and 7]; and ADC value had no significant changes after radiotherapy in Group C except day 7 [(1.07 ± 0.08) ×10-3 mm2/s for 1 day before radiotherapy, (1.03 ± 0.04) × 10-3, (1.05 ± 0.02) ×10-3, (1.05 ± 0.05) ×10-3, and (0.95 ± 0.07) ×10-3 mm2/s for day 1, 2, 3, and 7]. There was significant difference in ADC value between the two groups for each time point after radiotherapy (P < 0.01). Pathological study showed that the number of viable tumor cells in Group T decreased 1 day after radiotherapy, and the inflammatory cell infiltration was marked and almost all viable tumor cells disappeared by day 7 after radiotherapy. Conclusions DWI is a new promising technique for monitoring radiotherapy outcomes. ADC value may give a prior clue on physiological changes of radiotherapy before routine MRI could tell.Shuo Li Hua-dan Xue Xin-hai Wang Fei Sun Bo Jiang Dong Liu Jing Lei Zheng-yu Jin 2008Chinese Medical Sciences Journal2008,23,3:15
6Postoperative recovery from posterior communicating aneurysm complicated by oculomotor palsy显示文摘背景动眼的麻痹是在有以后的交流 aneurysm.This 学习的病人的普通复杂并发症被进行与与动眼的麻痹复杂的以后的交流动脉瘤调查病人的手术后的恢复并且分析与以后的交流动脉瘤从 2000~2006,148 个病人影响一些 recovery.Methods 的因素在我们的医院被对待,与他们中的 74 个一起,有病人的并发的单方的动眼的 palsy.All 经历了YANG Ming-qi WANG Shuo ZHAO Yuan-li ZHANG Dong ZHAO Ji-zong 2008Chinese Medical Journal2008,,12:12
7Enhancement Expression of bFGF in Chinese Patients with Moyamoya Disease显示文摘Objective To detect the content of the basic fibroblast growth factor in blood samples of patients with Moyamoya disease, and investigate the relationship between Moyamoya disease and the basic fibroblast growth factor. Methods This tissue microarray study included 24 cases of superficial temporal artery samples, 15 cases of Moyamoya disease, and 9 cases of normal arteries as control, and bFGF immunofluorescence assay was applied to test the samples. The number of positive cells and total cells of the muscular layer and the endothelium layer were counted separately in every picture, the positive rates were calculated, and the experimental data were analyzed statistically. Results The bFGF immunofluorescence staining of smooth muscular layer cells, intima cells and endothelial cells from the moyamoya disease group were obviously stronger than that from the control group (P<0.01). Conclusion The enhancement expression of bFGF in the Moyamaya disease group implicates that bFGF plays an important part in the pathogenesis of Moyamoya disease.ZOU DeWei ZHAO JiZong ZHANG Dong WANG Shuo WANG KeDa ZHANG Yan 2011Biomedical and Environmental Sciences2011,24,1:12
8S phase-dependent interaction with DNMT1 dictates the role of UHRF1 but not UHRF2 in DNA methylation maintenance显示文摘最近的研究证明 UHRF1 被指向 DNMT1 到 DNA 复制 foci 为 DNA methylation 维护要求,大概通过它的唯一的半甲醇化物有 DNMT1 的 DNA 有约束力的活动和相互作用。UHRF2, UHRF 家庭蛋白质的另一个成员,高度类似于在顺序和结构的 UHRF1,关于它在 DNA methylation 的角色的涨的问题。在这研究,我们证明 UHRF2 象 UHRF1 一样,也优先地绑在 methylated histone H3 离氨酸 9 (H3K9 ) 通过它的保存 tudor,通过 SET 和戒指的领域和半甲醇化物 DNA 联系了领域。象 UHRF1 一样, UHRF2 在 pericentric heterochromatin 被充实。heterochromatin 本地化取决于到大程度它的 methylated H3K9 有约束力的活动并且到它的 methylated 上的更少的程度 DNA 有约束力的活动。Coimmunoprecipitation 实验证明 UHRF1 和 UHRF2 与 DNMT1, DNMT3a, DNMT3b 和 G9a 交往。尽管有所有这些保存功能,我们发现 UHRF2 不能在 Uhrf1 空老鼠救 DNA methylation 缺点胚胎的干细胞。这个罐头在房间周期的 S 阶段期间为 UHRF2 被归因于无能到成员 DNMT1 到复制 foci。确实,我们发现当 UHRF1 在房间以一种 S 阶段依赖者方式与 DNMT1 交往时, UHRF2 不做。因此,我们的学习证明 UHRF2 和 UHRF1 不在 DNA methylation 维护是机能上地冗余的并且作为为 DNA methylation 指向 DNMT1 的关键规章的机制揭示在 UHRF1 和 DNMT1 之间的 cell-cycle-dependent 相互作用。Jiqin Zhang Qinqin Gao Pishun Li Xiaoli Liu Yuanhui Jia Weicheng Wu Jiwen Li Shuo Dong Haruhiko Koseki Jiemin Wong 2011Cell Research2011,21,12:12
9一种仿生水下机器人的设计与动力学分析(英文)显示文摘A biomimetic underwater vehicle propelled by two undulating long-fins is introduced in this paper. The concerned vehicle is propelled by two symmetrical undulating long-fins installed on both sides. Ten servo motors are employed to drive the long-fins and cosine wave function is employed for motor control. A real-time control system is designed for controlling the long-fins by adjusting its oscillating frequency and oscillating amplitude. An inertial measurement unit is installed to collect the accelerations and angular velocity. To obtain the relationship between oscillating frequency/amplitude and swimming performance, kinematic analysis and hydromechanic analysis are given. By dividing the long-fin into many small elements and computing the hydrodynamic force acting on each element, the instantaneous thrust generated by the long-fin is obtained. Then the average thrust of the long-fin is obtained by summing up the forces acted on the elements in one undulating period. Then swimming experiments are carried out to validate the vehicle design and kinematic analysis and hydromechanic analysis. And two swimming motion modes including marching and rotating locomotion are chosen. Finally, discussions between the swimming performance and the oscillating parameters are given.WEI Qing-Ping WANG Shuo DONG Xiang SHANG Liu-Ji TAN Min 2013自动化学报2013,39,8:11
10Negative reflection and negative surface wave conversion from obliquely incident electromagnetic waves显示文摘Complete control of spatially propagating waves(PWs)and surface waves(SWs)is an ultimate goal that scientists and engineers seek for,in which negative reflection of PW and negative surface wave are two exotic phenomena.Here,we experimentally demonstrate an anisotropic digital coding metasurface capable of controlling both PWs and SWs with a single coding pattern.On the basis of the digital description of coding metasurfaces,a simple coding method is proposed to allow dual functionalities(either PW or SW manipulations)under two orthogonal polarizations at arbitrarily oblique incidences,thus improving the adaptability of digital coding metasurfaces in more practical circumstances.With elaborately designed ellipse-shaped coding particles,we experimentally demonstrate various functions under oblique incidences,including the negative reflection of PW,negative SW,anomalous reflection and their arbitrary combinations,all having good agreements with theoretical and numerical predictions.We believe that the proposed method may enable the digital coding metasurfaces to have broad applications in radar detections,wireless communications and imaging.Shuo Liu Tie Jun Cui Ahsan Noor Zui Tao Hao Chi Zhang Guo Dong Bai Yan Yang Xiao Yang Zhou 2018Light(Science & Applications)2018,7,1:10
11Defined tumor antigen-specific T cells potentiate personalized TCR-T cell therapy and prediction of immunotherapy response显示文摘Personalized immunotherapy targeting tumor-specific antigens(TSAs)could generate efficient and safe antitumor immune response without damaging normal tissues.Although neoantigen vaccines have shown therapeutic effect in clinic trials,precise prediction of neoantigens from tumor mutations is still challenging.The host antitumor immune response selects and activates T cells recognizing tumor antigens.Hence,T cells engineered with T-cell receptors(TCRs)from these naturally occurring tumor antigen-specific T(Tas)cells in a patient will target personal TSAs in his/her tumor.To establish such a personalized TCR-T cell therapy,we comprehensively characterized T cells in tumor and its adjacent tissues by single-cell mRNA sequencing(scRNA-seq),TCR sequencing(TCR-seq)and in vitro neoantigen stimulation.Compared to bystander T cells circulating among tissues,Tas cells were characterized by tumor enrichment,tumor-specific clonal expansion and neoantigen specificity.We found that CXCL13 is a unique marker for both CD4^(+)and CD8^(+)Tas cells.Importantly,TCR-T cells expressing TCRs from Tas cells showed significant therapeutic effects on autologous patient-derived xenograft(PDX)tumors.Intratumoral Tas cell levels measured by CXCL13 expression precisely predicted the response to immune checkpoint blockade,indicating a critical role of Tas cells in the antitumor immunity.We further identified CD200 and ENTPD1 as surface markers for CD4^(^(+))and CD8^(^(+))Tas cells respectively,which enabled the isolation of Tas cells from tumor by Fluorescence Activating Cell Sorter(FACS)sorting.Overall,our results suggest that TCR-T cells engineered with Tas TCRs are a promising agent for personalized immunotherapy,and intratumoral Tas cell levels determine the response to immunotherapy.Jingjing He Xinxin Xiong Han Yang Dandan Li Xuefei Liu Shuo Li Shuangye Liao Siyu Chen Xizhi Wen Kuai Yu Lingyi Fu Xingjun Dong Kaiyu Zhu Xiaojun Xia Tiebang Kang Chaochao Bian Xiang Li Haiping Liu Peirong Ding Xiaoshi Zhang Zhenjiang Liu Wende Li Zhixiang Zuo Penghui Zhou 2022Cell Research2022,32,6:10
12Numerical simulation of aerodynamic interaction for a tilt rotor aircraft in helicopter mode显示文摘A rotor CFD solver is developed for simulating the aerodynamic interaction phenomenon among rotor, wing and fuselage of a tilt rotor aircraft in its helicopter mode. The unsteady Navier–Stokes equations are discretized in inertial frame and embedded grid system is adopted for describing the relative motion among blades and nacelle/wing/fuselage. A combination of multi-layer embedded grid and ‘‘extended hole fringe' technique is complemented in original grid system to tackle grid assembly difficulties arising from the narrow space among different aerodynamic components, and to improve the interpolation precision by decreasing the cell volume discrepancy among different grid blocks. An overall donor cell searching and automatic hole cutting technique is used for grid assembly, and the solution processes are speeded up by introduction of Open MP parallel method. Based on this solver, flow fields and aerodynamics of a tilt rotor aircraft in hover are simulated with several rotor collective angles, and the corresponding states of an isolated rotor and rotor/wing/fuselage model are also computed to obtain reference solution.Aerodynamic interference influences among the rotor and wing/fuselage/nacelle are analyzed,and some meaningful conclusions are drawn.Ye Liang Zhang Ying Yang Shuo Zhu Xinglin Dong Jun 2016Chinese Journal of Aeronautics2016,29,4:10
13Long-term follow-up of auditory performance and speech perception and effects of age on cochlear implantation in children with pre-lingual deafness显示文摘Background: The development of auditory and speech perception ability of children with hearing loss is affected by many factors after they undergo cochlear implantation (CI). Age at CI (CI age) appears to play an important role among these factors. This study aimed to evaluate the development of auditory and speech perception ability and explore the impact of CI age on children with pre-lingual deafness present before 3 years of age. Methods: Two hundred and seventy-eight children with pre-lingual deafness (176 boys and 102 girls) were included in this study, and the CI age ranged from 6 to 36 months (mean age, 19 months). Categorical auditory performance (CAP) was assessed to evaluate auditory ability, and the speech intelligibility rating was used to evaluate speech intelligibility. The evaluations were performed before CI and 1, 3, 6, 12, 18, 24, 36, 48, and 60 months after CI. Results: The auditory ability of the pre-lingually hearing-impaired children showed the fastest development within 6 months after CI (k = 0.524, t = 30.992, P < 0.05);then, the progress started to decelerate (k = 0.14, t = 3.704, P < 0.05) and entered a plateau at the 24th month (k = 0.03, t = 1.908, P < 0.05). Speech intelligibility showed the fastest improvement between the 12th and 24th months after CI (k = 0.138, t = 5.365, P < 0.05);then, the progress started to decelerate (k = 0.026, t = 1.465, P < 0.05) and entered a plateau at the 48th month (k = 0.012, t = 1.542, P < 0.05). The CI age had no statistical significant effect on the auditory and speech abilities starting at 2 years after CI (P > 0.05). The optimal cutoff age for CI was 15 months. Conclusions: Within 5 years after CI, the auditory and speech ability of young hearing-impaired children continuously improved, although speech development lagged behind that of hearing. An earlier CI age is recommended;the optimal cutoff age for CI is at 15 months.Jing Lyu Ying Kong Tian-Qiu Xu Rui-Juan Dong Bei-Er Qi Shuo Wang Yong-Xin Li Hai-Hong Liu Xue-Qing Chen 2019Chinese Medical Journal2019,,16:9
14PPC-based Reactive Hot Melt Polyurethane Adhesive(RHMPA)--Efficient Glues for Multiple Types of Substrates显示文摘Tens of billion metric tons of anthropogenic CO_2 discharged from the burning of fossil fuels lead to an enormous environmental and resource burden. It is charming to transform CO_2 to desirable, economical chemicals and materials. Poly(propylene carbonate)(PPC) is an emerging CO_2-based material. Herein, we report the design, synthesis and characterization of the reactive hot melt polyurethane adhesive(RHMPA) based on PPC polyol. The resultant RHMPAs exhibit good adhesion properties to multiple substrates including plastics(PC, PMMA, ABS) and metals(aluminium, steel), which is comparable to or even better than conventional RHMPAs prepared from petro-based polyol. Furthermore, the PPC-based RHMPAs have tunable mechanical properties, and are thermally stable in the typical working range of bonding process(up to 270 °C). The study is expected to expand the applications of PPC and provide a new type of CO_2-based renewable and eco-friendly materials.Zeng-He Liu Ji-Qing Huang Li-Jie Sun Dong Lei Jing Cao Shuo Chen Wen-Chang Shih Feng-Ling Qing Zheng-Wei You 2018Chinese Journal of Polymer Science2018,36,1:7
15A multi-channel collagen scaffold loaded with neural stem cells for the repair of spinal cord injury显示文摘Collagen scaffolds possess a three-dimensional porous structure that provides sufficient space for cell growth and proliferation,the passage of nutrients and oxygen,and the discharge of metabolites.In this study,a porous collagen scaffold with axially-aligned luminal conduits was prepared.In vitro biocompatibility analysis of the collagen scaffold revealed that it enhances the activity of neural stem cells and promotes cell extension,without affecting cell differentiation.The collagen scaffold loaded with neural stem cells improved the hindlimb motor function in the rat model of T8 complete transection and promoted nerve regeneration.The collagen scaffold was completely degraded in vivo within 5 weeks of implantation,exhibiting good biodegradability.Rectal temperature,C-reactive protein expression and CD68 staining demonstrated that rats with spinal cord injury that underwent implantation of the collagen scaffold had no notable inflammatory reaction.These findings suggest that this novel collagen scaffold is a good carrier for neural stem cell transplantation,thereby enhancing spinal cord repair following injury.This study was approved by the Animal Ethics Committee of Nanjing Drum Tower Hospital(the Affiliated Hospital of Nanjing University Medical School),China(approval No.2019AE02005)on June 15,2019.Shuo Liu Yuan-Yuan Xie Liu-Di Wang Chen-Xu Tai Dong Chen Dan Mu Yan-Yan Cui Bin Wang 2021Neural Regeneration Research2021,16,11:6
16Study on RIZ1 gene promoter methylation status in human esophageal squamous cell carcinoma显示文摘AIM:To investigate the promoter region methylation status of retinoblastoma protein-interacting zinc finger gene 1(RIZ1) in the human esophageal squamous cell carcinoma(ESCC) cell lines and tissues and verify the relationship between methylation of RIZ1 and oncogenesis,tumor progression and metastasis etc of ESCC.METHODS:Methylation-specific polymerase chain reaction(MSP) was used to investigate the promoter region methylation status of RIZ1 in 6 ESCC cell lines.One cell line where RIZ1 promoter region methylation was detected was selected for the next study,where the cell line was treated with 5-aza-CdR.Real-time polymerase chain reaction was used to investigate its influence on the transcription of RIZ1.Experiments using frozenpathological specimens from 47 ESCC patients were performed using the same MSP methodology.RESULTS:Promoter methylation of RIZ1 gene was detected in TE13,CaEs17 and EC109 cell lines and the cell line TE13 was chosen for further study.The expression of RIZ1 mRNA in TE-13 was up-regulated after treatment with 5-aza-CdR.The rate of methylation in carcinomas tissues was significantly higher than those in matched neighboring normal and distal ending normal tissue,and the deviation of data was statistically significant(χ 2 = 24.136,P < 0.01).Analysis of the gender,age familial history,tumour deviation,tumour saturation,lymph gland displacement and clinical staging of 47 samples from ESCC patients showed that the fluctuation of data was not statistically significant.CONCLUSION:Promoter methylation may play an important role in the epigenetic silencing of RIZ1 gene expression in human ESCC.RIZ1 is considered to be a potential tumor suppressor gene and may be a biological parameter for testing early stage human ESCC.Shang-Wen Dong Peng Zhang Yi-Mei Liu Yuan-Tao Cui Shuo Wang Shao-Jie Liang Zhun He Pei Sun Yuan-Guo Wang 2012World Journal of Gastroenterology2012,18,6:6
17Information theory of metasurfaces显示文摘We propose a theory to characterize the information and information processing abilities of metasurfaces,and demonstrate the relation between the information of the metasurface and its radiation pattern in the far-field region.By incorporating a general aperturemodel with uncertainty relation in L2-space,we propose a theory to predict the upper bound of information contained in the radiation pattern of a metasurface,and reveal the theoretical upper limit of orthogonal radiation states.Theproposed theory also provides guidance for inverse design of the metasurface with respect to given functionalities.Through investigation of the information of disordered-phase modulated metasurfaces,we find the information invariance(1?γ,whereγis Euler’s constant)of chaotic radiation patterns.That is to say,the information of the disordered-phase modulated radiation patterns is always equal to 1?γ,regardless of variations in size,the number of elements and the phase pattern of metasurface.This value might be the lower bound of radiation-pattern information of the metasurface,which can provide a theoretical limit for information modulation applications,including computational imaging,stealth technologies and wireless communications.Haotian Wu Guo Dong Bai Shuo Liu Lianlin Li Xiang Wan Qiang Cheng Tie Jun Cui 2020National Science Review2020,7,3:5
18Laser Doppler flowmeter study on regional cerebral blood flow in early stage after standard superficial temporal artery-middle cerebral artery bypass surgery for moyamoya disease显示文摘背景标准表面的时间的动脉中间服的动脉(STA-MCA ) 绕过外科是为 moyamoya 疾病的有效治疗,但是最近的证据建议手术后的服的 hyperperfusion 能发生。在这研究,在在外科以后的地区性的服的血流动( rCBF )的变化的 trendline 不断地在吻合的地点附近被监视以便两个都为改进 rCBF 和可能的 riskof hyperperfusion.Methods 标准 STA-MCA 调查过程的功效绕过外科在 13 个病人上被执行, rCBF 在操作以后用激光 Doppler flowmetry ( LDF )不断地被测量直到 第5 天,邻近吻合的区域的 LDF 探查植入。rCBF 变化的 trendline 手术后地为用外皮的 rCBF 的基线 LDF 价值是的社会科学统计套装软体 13.0 .Results 执行的分析被记录(84.68 吗??GESANG Dun-zhu ZHANG Dong ZHAO Ji-zong WANG Shuo ZHAO Yuan-li WANG Rong SUN Jian-jun MENG Ze 2009Chinese Medical Journal2009,,20:5
19Safety and effectiveness of Traditional Chinese Medicinal herbs for diabetic foot:a systematic review and Meta-analysis显示文摘OBJECTIVE: To evaluate the safety and effectiveness of traditional Chinese medicinal herbs(TCMHs) as an adjunctive treatment for diabetic foot(DF).METHODS: The sources used were Pub Med(1966 to August 2015), the Cochrane Library(1988 to August 2015), the Excerpta Medica Database(1974 to August 2015), Wiley(1807 to August 2015), Ovid(1988 to August 2015), Clinical Trials.gov(1993 to August 2015), the Cochrane Central Register of Controlled Trials(1966 to August 2015), China Science and Technology Journal Database(1994 to August2015), Chi CTR(2007 to August 2015), Sino Med(1978 to August 2015), the China National Knowledge Infrastructure(1984 to August 2015), Wanfang Data Knowledge Service Platform(1998 to August 2015), and the Traditional Chinese Medical Literature Analysis and Retrieval System(TCMLARS)(1984 to August 2015). Studies were identified and selected, and the data were extracted by two independent reviewers. The Cochrane Risk of Bias tool was used to assess the quality of studies. Revman 5.2 software was used for data synthesis and analysis.RESULTS: Sixteen studies were included based on the selection criteria. Of these, seven studies had low bias risk and one had high bias risk. In the overall analysis, TCMHs resulted in a significantly higher total effective rate(OR 5.08; 95% CI 3.50 to7.36; P < 0.000 01), cure rate(OR 2.12; 95% CI1.63 to 2.77; P < 0.000 01), and shorter time to ulcer healing(SMD-0.64; 95% CI-0.89 to-0.40;P < 0.000 01) when compared with non-TCMHs treated DF. The analysis also revealed that significantly fewer amputations occurred in TCMHs patients(OR 0.36; 95% CI 0.20 to 0.65; P = 0.0007).Sensitivity analysis indicated that the findings of the Meta-analysis were robust to study quality,and the funnel plot of the Egger test showed no publication bias.CONCLUSION: TCMHs intervention appears to be more effective for DF, with a similar safety profile,when compared with non-TCMHs treatments, although this result requires further verification with more well-designed studies.Chen Shuo Ma Jianwei Xu Limei Niu Tianhui Dong Jing Liu Wenjun Han Qi 2017Journal of Traditional Chinese Medicine2017,37,6:5
20Whole Genome Analyses of Chinese Population and De Novo Assembly of A Northern Han Genome显示文摘To unravel the genetic mechanisms of disease and physiological traits,it requires comprehensive sequencing analysis of large sample size in Chinese populations.Here,we report the primary results of the Chinese Academy of Sciences Precision Medicine Initiative(CASPMI)project launched by the Chinese Academy of Sciences,including the de novo assembly of a northern Han reference genome(NH1.0)and whole genome analyses of 597 healthy people coming from most areas in China.Given the two existing reference genomes for Han Chinese(YH and HX1)were both from the south,we constructed NH1.0,a new reference genome from a northern individual,by combining the sequencing strategies of PacBio,10×Genomics,and Bionano mapping.Using this integrated approach,we obtained an N50 scaffold size of 46.63 Mb for the NH1.0 genome and performed a comparative genome analysis of NH1.0 with YH and HX1.In order to generate a genomic variation map of Chinese populations,we performed the whole-genome sequencing of 597 participants and identified 24.85 million(M)single nucleotide variants(SNVs),3.85 M small indels,and 106,382 structural variations.In the association analysis with collected phenotypes,we found that the T allele of rs1549293 in KAT8 significantly correlated with the waist circumference in northern Han males.Moreover,significant genetic diversity in MTHFR,TCN2,FADS1,and FADS2,which associate with circulating folate,vitamin B12,or lipid metabolism,was observed between northerners and southerners.Especially,for the homocysteine-increasing allele of rs1801133(MTHFR 677T),we hypothesize that there exists a “comfort”zone for a high frequency of 677T between latitudes of 35–45 degree North.Taken together,our results provide a high-quality northern Han reference genome and novel population-specific data sets of genetic variants for use in the personalized and precision medicine.Zhenglin Du Liang Ma Hongzhu Qu Wei Chen Bing Zhang Xi Lu Weibo Zhai Xin Sheng Yongqiao Sun Wenjie Li Meng Lei Qiuhui Qi Na Yuan Shuo Shi Jingyao Zeng Jinyue Wang Yadong Yang Qi Liu Yaqiang Hong Lili Dong Zhewen Zhang Dong Zou Yanqing Wang Shuhui Song Fan Liu Xiangdong Fang Hua Chen Xin Liu Jingfa Xiao Changqing Zeng 2019Genomics, Proteomics & Bioinformatics2019,17,3:4
返回顶部 每页显示:
共6页 首页 上一页 第1页 下一页 末页 /6 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