|
|
|
题名
|
作者
|
年代
|
出处
|
被引量
|
| 1 | Construction and external validation of a nomogram that predicts lymph node metastasis in early gastric cancer patients using preoperative parameters显示文摘Objective: To create a nomogram to predict the incidence of lymph node metastasis(LNM) in early gastric cancer(EGC) patients and to externally validate the nomogram.Methods: To construct the nomogram,we retrospectively analyzed a primary cohort of 272 EGC patients.Univariate analysis and a binary logistic regression were performed.A nomogram predicting the incidence of LNM in EGC patients was created.The discrimination ability of the nomogram was measured using the concordance index(c-index),and the nomogram was also calibrated.Then,another prospective cohort of 81 patients was analyzed to validate the nomogram.Results: In the primary cohort,LNM was pathologically confirmed in 37(13.6%) patients.In multivariate analysis,the presence of an ulcer,the maximum lesion diameter observed via gastroscopy,the thickness of the lesion observed via endoscopic ultrasonography,and the presence of enlarged lymph nodes on computed tomography(CT) were independent risk factors for LNM.A nomogram was then created based on the regression model with the c-index of 0.905,and the calibration curve of the nomogram fell approximately on the ideal 45-degree line.The cut-off score of the nomogram was 110,and the sensitivity,specificity,positive predictive and negative predictive values of the nomogram in the primary cohort were 81.1%,86.0%,47.6% and 96.7%,respectively,and in the prospective validation cohort were 75.0%,91.0%,60.0% and 95.5%,respectively.The calibration curve of the external validation cohort was almost on the 45-degree line.Conclusions: We developed an effective nomogram predicting the incidence of LNM for EGC patients. | Yinan Zhang Yiqiang Liu Ji Zhang Xiaojiang Wu Xin Ji Tao Fu Ziyu Li Qi Wu Zhaode Bu Jiafu Ji | 2018 | Chinese Journal of Cancer Research2018,30,6: | 12 |
| 2 | Exceeding the limit of plasmonic light trapping in textured screen-printed solar cells using Al nanoparticles and wrinkle-like graphene sheets显示文摘The solar cell market is predominantly based on textured screen-printed solar cells.Due to parasitic absorption in nanostructures,using plasmonic processes to obtain an enhancement that exceeds 2.5%of the short-circuit photocurrent density is challenging.In this paper,a 7.2%enhancement in the photocurrent density can be achieved through the integration of plasmonic Al nanoparticles and wrinkle-like graphene sheets.For the first time,we experimentally achieve Al nanoparticle-enhanced solar cells.An innovative thermal evaporation method is proposed to fabricate low-coverage Al nanoparticle arrays on solar cells.Due to the ultraviolet(UV)plasmon resonance of Al nanoparticles,the performance enhancement of the solar cells is significantly greater than that from Ag nanoparticles.Subsequently,we deposit wrinkle-like graphene sheets over the Al nanoparticle-enhanced solar cells.Compared with planar graphene sheets,the bend carbon layer also exhibits a broadband light-trapping effect.Our results exceed the limit of plasmonic light trapping in textured screen-printed silicon solar cells. | Xi Chen Baohua Jia Yinan Zhang Min Gu | 2013 | Light(Science & Applications)2013,2,1: | 9 |
| 3 | Effect of low-level laser therapy on tooth-related pain and somatosensory function evoked by orthodontic treatment显示文摘Low-level laser therapy(LLLT) may have an effect on the pain associated with orthodontic treatment. The aim of this study was to evaluate the effect of LLLT on pain and somatosensory sensitization induced by orthodontic treatment. Forty individuals(12–33 years old; mean ± standard deviations: 20.8 ± 5.9 years) scheduled to receive orthodontic treatment were randomly divided into a laser group(LG) or a placebo group(PG)(1:1). The LG received LLLT(810-nm gallium-aluminium-arsenic diode laser in continuous mode with the power set at 400 mW, 2 J·cm–2) at 0 h, 2 h, 24 h, 4 d, and 7 d after treatment, and the PG received inactive treatment at the same time points. In both groups, the non-treated side served as a control. A numerical rating scale(NRS) of pain, pressure pain thresholds(PPTs), cold detection thresholds(CDTs), warmth detection thresholds(WDTs), cold pain thresholds(CPTs), and heat pain thresholds(HPTs) were tested on both sides at the gingiva and canine tooth and on the hand. The data were analysed by a repeated measures analysis of variance(ANOVA). The NRS pain scores were significantly lower in the LG group(P = 0.01). The CDTs,CPTs, WDTs, HPTs, and PPTs at the gingiva and the PPTs at the canine tooth were significantly less sensitive on the treatment side of the LG compared with that of the PG(P < 0.033). The parameters tested also showed significantly less sensitivity on the nontreatment side of the LG compared to that of the PG(P < 0.043). There were no differences between the groups for any quantitative sensory testing(QST) measures of the hand. The application of LLLT appears to reduce the pain and sensitivity of the tooth and gingiva associated with orthodontic treatment and may have contralateral effects within the trigeminal system but no generalized QST effects. Thus, the present study indicated a significant analgesia effect of LLLT application during orthodontic treatment.Further clinical applications are suggested. | Song Wu Yinan Chen Jinglu Zhang Wenjing Chen Sheng Shao Huijie Shen Ling Zhu Ping Ye Peter Svensson Kelun Wang | 2018 | International Journal of Oral Science2018,10,3: | 6 |
| 4 | Distinct regulatory mechanism of immunoglobulin gene transcription in epithelial cancer cells显示文摘The restriction of immunoglobulin(Ig)expression to B lymphocytes is well established.However,several reports have confirmed that the Ig gene can be expressed in many non-B cancer cells and/or some normal cells.Our aim is to determine whether the Ig gene promoter can be activated in non-B cancer cells and to identify the regulatory mechanism for Ig gene expression.Our results show that the Ig promoter of VH4-59 was activated in several non-B cancer cell lines.Moreover,two novel positive regulatory elements,an enhancer-like element at 2800 to 2610 bp and a copromoter-like element at 2610 to 2300 bp,were identified in two epithelial cancer cell lines,HeLa S3 and HT-29.The octamer element(59-ATGCAAAT-39)located in the Ig promoter,a crucial element for B-cell-derived Ig gene transcription,was also very important for non-B-cell-derived Ig gene transcription.More importantly,we confirmed that octamer-related protein-1(Oct-1),but not Oct-2,was a crucial transcriptional factor for Ig gene transcription due to its ability to bind to the octamer element of the Ig promoter in epithelial cancer cells.These results suggested the presence of a distinct regulatory mechanism for Ig gene expression in non-B cancer cells. | Xiaohui Zhu Lina Wu Li Zhang Peng Hao Shuai Zhang Jing Huang Jie Zheng Yinan Liu Wenjun Li Yingmei Zhang Chunyan Zhou Youhui Zhang C Cameron Yin Xiaoyan Qiu | 2010 | Cellular & Molecular Immunology2010,7,4: | 5 |
| 5 | Glycosylation of dentin matrix protein 1 is a novel key element for astrocyte maturation and BBB integrity显示文摘血大脑障碍(BBB ) 是在 endothelial 房间和星形细胞之间形成的一条紧密的边界,它在循环把大脑与大多数病原体以及神经毒素分开并且保护。然而,详细说明了涉及 BBB 的形成的分子的播放器完全不被知道。牙质矩阵蛋白质 1 (DMP1 )-proteoglycan (PG ) 被知道涉及骨头和牙质的矿化作用,也与未知功能包括大脑在软纸巾被表示。在现在的学习,我们报导 DMP1-PG 在大脑星形细胞被表示并且在 BBB 充实单位。DMP1 的唯一的 glycosylation 地点在在鼠标的蛋白质的 N 终端域是 serine89 (S89 ) 。有 DMP1 的变异的老鼠削尖把 S89 改变到 glycine (S89G ) 的变化,它蛋白质的完全根除的 glycosylation,表明的严重 BBB 混乱。DMP1 变异的鼠标的另一个品种,缺乏 DMP1 的 C 终端域,表明了正常 BBB 功能。S89G-DMP1 星形细胞的极性被破坏,房间房间粘附被松开。通过一组分析,我们发现 DMP1 glycosylation 极其在 vitro 并且在 vivo 为星形细胞成熟被要求。S89G-DMP1 变异的星形细胞没能表示 aquaporin 4 并且减少了 laminin 和 ZO1 表示,它导致了 BBB 的混乱。有趣地,在 nestin 倡导者驾驶的老鼠大脑的野类型的 DMP1-PG 的 overexpression 在野类型层次以外提高了 laminin 和 ZO1 表示并且能有效地抵抗的静脉内的导致甘露糖醇的 BBB 可逆的洞。一起拿,我们的学习不仅揭示了一个新奇元素,即, DMP1-PG,调整了 BBB 形成,而且把新功能分到 DMP1-PG。 | Bo Jing Chunxue Zhang Xianjun Liu Liqiang Zhou Jiping Liu Yinan Yao Juehua Yu Yuteng Weng Min Pan Jie Liu Zuolin Wang Yao Sun Yi Eve Sun | 2018 | Protein & Cell2018,9,3: | 5 |
| 6 | Band structure engineering in metal halide perovskite nanostructures for optoelectronic applications显示文摘Metal halide perovskite nanostructures have emerged as low-dimensional semiconductors of great significance in many fields such as photovoltaics,photonics,and optoelectronics.Extensive efforts on the controlled synthesis of perovskite nanostructures have been made towards potential device applications.The engineering of their band structures holds great promise in the rational tuning of the electronic and optical properties of perovskite nanostructures,which is one of the keys to achieving efficient and multifunctional optoelectronic devices.In this article,we summarize recent advances in band structure engineering of perovskite nanostructures.A survey of bandgap engineering of nanostructured perovskites is firstly presented from the aspects of dimensionality tailoring,compositional substitution,phase segregation and transition,as well as strain and pressure stimuli.The strategies of electronic doping are then reviewed,including defect-induced self-doping,inorganic or organic molecules-based chemical doping,and modification by metal ions or nanostructures.Based on the bandgap engineering and electronic doping,discussions on engineering energy band alignments in perovskite nanostructures are provided for building high-performance perovskite p-n junctions and heterostructures.At last,we provide our perspectives in engineering band structures of perovskite nanostructures towards future low-energy optoelectronics technologies. | Qingdong Ou Xiaozhi Bao Yinan Zhang Huaiyu Shao Guichuan Xing Xiangping Li Liyang Shao Qiaoliang Bao | 2019 | Nano Materials Science2019,1,4: | 5 |
| 7 | Risks Associated with Misuse of Ketamine as a Rapid-Acting Antidepressant显示文摘Major depression is a serious psychiatric disorder and remains a leading cause of disability worldwide.Conventional antidepressants take at least several weeks to achieve a therapeutic response and this lag period has hindered their ability to attain beneficial effects in depressed individuals at high risk of suicide.The non-competitive Nmethyl-D-aspartate glutamate receptor antagonist ketamine has been shown to have rapid antidepressant effects in both rodents and humans.The emergence of ketamine as a fastacting antidepressant provides promising new insights into the development of a rapid treatment response in patients with clinical depression.However,its safety and toxicity remain a concern.In this review,we focus on the limitations of ketamine,including neurotoxicity,cognitive dysfunction,adverse events associated with mental status,psychotomimetic effects,cardiovascular events,and uropathic effects.Studies have shown that its safety and tolerability profiles are generally good at low doses and with short-term treatment in depressed patients.The adverse events associated with ketamine usually occur with very high doses that are administered for prolonged periods of time and can be relieved by cessation.The antidepressant actions of its two enantiomers,S-ketamine(esketamine) and R-ketamine,are also discussed.R-ketamine has greater antidepressant actions than S-ketamine,without ketamine-related sideeffects.Future treatment strategies should consider using Rketamine for the treatment of depressed patients to decrease the risk of adverse events associated with long-term ketamine use. | Weili Zhu Zengbo Ding Yinan Zhang Jie Shi Kenji Hashimoto Lin Lu | 2016 | Neuroscience Bulletin2016,32,6: | 5 |
| 8 | Effect of direct current pulse stimulating acupoints of JiaJi (T10-L3) and Ciliao (BL 32) with Han's Acupoint Nerve Stimulator on labour pain in women: a randomized controlled clinical study显示文摘OBJECTIVE: To assess the clinical effect and safety of direct current(DC) pulse produced by Han's Acupoint Nerve Stimulator in reduction(HANS) of labor pain.METHODS: Totally 120 participants were enrolled in this clinical trial, and were randomly divided into4 groups including: HANS group, patient controlled intravenous analgesia(PCIA) group, patient-controlled epidural analgesia(PCEA) group and control group. The HANS group was treated by stimulating the acupoints of Jia Ji(T10-L3) and Ciliao(BL 32)with DC pulse of 100 Hz and 15-30 m A produced by a portable battery-powered Han's Acupoint Nerve Stimulator for 30 min. The PCIA group was intravenously infused Ondansetron(8 mg) for 5 min,then tramadol injection(1.5 mg/kg) was slowly dripped by using Baxter APⅡ electronic pump with50 m L tramadol(0.70%) + ondansetron(8 mg),background infusion 2 m L/h, PCA dose of 2 m L,lockout interval of 10 min. In PCEA group, women received intrathecal injection ropivacaine(3 mg) in L2-3, and epidural catheter was connected to Baxter APⅡ electronic pump, with 100 m L Ropivacaine(0.1%) and Sufentanil(50 ug), background infusion5 m L, Patient controlled analgesia(PCA) dose of 5m L, lockout interval of 10 min. The control group was not received analgesia. The visual analogue scale(VAS), stage and manner of labor, Apgar score of newborn, neonatal weights, oxytocin dosage,postpartum hemorrhage and side effects were monitored in all groups.RESULTS: The vital signs were all stable in the four analgesic groups. After analgesia, there was statistical difference in VAS score between HANS group and control group, between PCEA group and the control group, between PCIA group and control group. The analgesic effect in the PCEA group was significantly better than that of other two groups.The second stage of labor in the PCEA group was longer than the other three groups, showing significant difference between them. The Apgar score of newborn 1min after birth in the PCIA group was slightly lower than that of the other two groups,showing significant difference between them. The neonatal weights between four groups were not significantly different. The rate of cesarean sectionin the control group was significantly higher than that of the labor analgesia group, there was statistically difference in four groups. The number of PCIA group that used oxytocin was lower than that of other three groups. There was no significant difference in postpartum hemorrhage between four groups. The side effects of the PCEA group were itching, uroschesis and neonatal asphyxia and PCIA group were nausea and vomiting and neonatal asphyxia. However, fewer side effects were observed in the HANS group.CONCLUSION: The DC pulse produced by HANS may be a non-pharmacological alternative to labor pain with fewer side effects. | Liu Ye Xu Mingjun Che Xiangming He Junqin Guo Dandan Zhao Guosheng Zhang Guogang Zhang Shuo Kang Kai Zhang Chunlei Wang Yinan Li Shan Zhang Qinglin Xu Li Zhang Ming Han Bin Jing Yumiao Zhang Ning | 2015 | Journal of Traditional Chinese Medicine2015,35,6: | 4 |
| 9 | Yeast Two-Hybrid Screening for Proteins that Interact with the Extracellular Domain of Amyloid Precursor Protein显示文摘Alzheimer's disease(AD) is a neurodegenerative disorder in which amyloid b plaques are a pathological characteristic. Little is known about the physiological functions of amyloid b precursor protein(APP). Based on its structure as a type I transmembrane protein, it has been proposed that APP might be a receptor, but so far, no ligand has been reported. In the present study, 9 proteins binding to the extracellular domain of APP were identified using a yeast two-hybrid system. After confirming the interactions in the mammalian system, mutated PLP1,members of the FLRT protein family, and KCTD16 were shown to interact with APP. These proteins have been reported to be involved in Pelizaeus-Merzbacher disease(PMD) and axon guidance. Therefore, our results shed light on the mechanisms of physiological function of APP in AD, PMD, and axon guidance. | You Yu Yinan Li Yan Zhang | 2016 | Neuroscience Bulletin2016,32,2: | 4 |
| 10 | Research on Partial Coefficients for Design of Quarter-circular Caisson Breakwater显示文摘季度通报沉箱防波提(QCB ) 是防波提的一种新类型,并且它能被使用在深海。在波浪力量行动下面的 QCB 的稳定性能被提高,并且碎石墩工程能是不到半圆形的防波提在的深海。为了学习波浪,强迫对 QCB 起作用的分发,到为这类防波提发现波浪力量公式,第一在这糊,水平力量的分发特征,防波提上的力量基于物理模型被得到的向下垂直的力量和uplift 挥动斜槽实验并且在波浪的分析上迫使试验性的数据。基于测试由不规则的波浪扮演了的一系列物理模型,一种计算方法,被 Goda 公式修改,被建议在 QCB 上执行波浪力量。第二,有相关变量的可靠性方法被采用分析 QCB,就在波浪力量或时刻之间的高关联而言。在设计领域,可靠性索引和 QCB 的失败概率利用观察波浪数据被获得。最后,因素 Q=0.9 被给在 QCB 的 SWL 上面修改零压力高度,并且挥动力量部分系数 1.34 到 QCB 为的设计表情滑动反,以及 1.67 为打翻反,被介绍。 | Luwen Qie Xiang Zhang Xuelian Jiang Yinan Qin | 2013 | Journal of Marine Science and Application2013,12,1: | 4 |
| 11 | Magnetic plasmon resonances in nanostructured topological insulators for strongly enhanced light-MoS_(2) interactions显示文摘Magnetic resonances not only play crucial roles in artificial magnetic materials but also offer a promising way for light control and interaction with matter.Recently,magnetic resonance effects have attracted special attention in plasmonic systems for overcoming magnetic response saturation at high frequencies and realizing high-performance optical functionalities.As novel states of matter,topological insulators(TIs)present topologically protected conducting surfaces and insulating bulks in a broad optical range,providing new building blocks for plasmonics.However,until now,high-frequency(e.g.visible range)magnetic resonances and related applications have not been demonstrated in TI systems.Herein,we report for the first time,to our knowledge,a kind of visible range magnetic plasmon resonances(MPRs)in TI structures composed of nanofabricated Sb_(2)Te_(3) nanogrooves.The experimental results show that the MPR response can be tailored by adjusting the nanogroove height,width,and pitch,which agrees well with the simulations and theoretical calculations.Moreover,we innovatively integrated monolayer MoS_(2) onto a TI nanostructure and observed strongly reinforced light-MoS_(2) interactions induced by a significant MPR-induced electric field enhancement,remarkable compared with TI-based electric plasmon resonances(EPRs).The MoS_(2) photoluminescence can be flexibly tuned by controlling the incident light polarization.These results enrich TI optical physics and applications in highly efficient optical functionalities as well as artificial magnetic materials at high frequencies. | Hua Lu Zengji Yue Yangwu Li Yinan Zhang Mingwen Zhang Wei Zeng Xuetao Gan Dong Mao Fajun Xiao Ting Mei Weiyao Zhao Xiaolin Wang Min Gu Jianlin Zhao | 2020 | Light(Science & Applications)2020,9,1: | 3 |
| 12 | Hotspots of Independent and Multiple Rounds of LTR-retrotransposon Bursts in Brassica Species显示文摘Long terminal repeat retrotransposons(LTR-RTs) are a predominant group of plant transposable elements(TEs) that are an important component of plant genomes. A large number of LTR-RTs have been annotated in the genomes of the agronomically important oil and vegetable crops of the genus Brassica. Herein, full-length LTR-RTs in the genomes of Brassica and other closely related species were systematically analyzed. The full-length LTR-RT content varied greatly(from 0.43% to 23.4%) between different species, with Gypsy-like LTR-RTs constituting a primary group across these genomes. More importantly, many annotated LTR-RTs(from 10.03% to 33.25% of all detected LTR-RTs) were found to be enriched in localized hotspot regions. Furthermore, all of the analyzed species showed evidence of having experienced at least one round of a LTR-RT burst, with Raphanus sativus experiencing three or more. Moreover, these relatively ancient LTR-RT amplifications exhibited a clear expansion at specific time points. To gain a further understanding of this timing, Brassica rapa, B. oleracea, and R. sativus were examined for the presence of syntenic regions, but none were present. These findings indicate that these LTR-RT burst events were not inherited from a common ancestor,but instead were species-specific bursts that occurred after the divergence of Brassica species. This study further exemplifies the complexities of TE amplifications during the evolution of plant genomes and suggests that these LTR-RT bursts play an important role in genome expansion and divergence in Brassica species. | CAI Xu CUI Yinan ZHANG Lei WU Jian LIANG Jianli CHENG Lin WANG Xiaowu CHENG Feng | 2018 | Horticultural Plant Journal2018,4,4: | 3 |
| 13 | Electrospinning in membrane contactor:manufacturing Elec-PVDF/SiO2 superhydrophobic surface for efficient flue gas desulphurization applications显示文摘In membrane contactors,maintaining a high SO_(2)absorption flux and an excellent wetting resistance are crucial for hazardous gas removal.In this study,we adopted an electrospinning strategy to fabricate highly robust superhydrophobic dual-layer Elec-PVDF/SiO_(2)composite membrane contactors used for flue gas desulfurization.The composite membrane contactor consisted of a durable and ultrathin three-dimensional(3D)superhydrophobic surface and a porous supporting layer,where the formulation was optimized by regulating the PVDF concentration,solvent ratio and SiO_(2)particles content in electrospinning solution.The scanning electronic microscopy(SEM),EDS-mapping,water contact angle(WCA)and surface roughness of as-prepared Elec-PVDF/SiO_(2)composite membrane contactors were conducted to explore the physical and chemical structure.The SiO_(2)nanoparticles were uniformly loaded in ElecPVDF/SiO_(2)composite membrane contactor,and constructed micro-nano dual-coarse lotus-leaf-like morphology,which noticeably elevated surface roughness(Ra).The SiO_(2)nanoparticles also functioned as hydrophobic modifiers,which boosted the WAC up to 155.The SO_(2)absorption fluxes and SO_(2)removal efficiencies were investigated.In particular,the membrane contactor doped with 20 wt%SiO_(2)nanoparticles significantly elevated the stability of desulfurization performance.Besides,the membrane mass transfer coefficient(Km)and corresponding membrane mass transfer resistance(H/Km)were explored. | Qingping Xin Kaiqiang Xie Qingqing Liang Xu Li Yinan Zeng Yuhang Zhao Lei Zhang Shaofei Wang Hong Li Yuzhong Zhang | 2021 | Green Chemical Engineering2021,2,1: | 3 |
| 14 | Design of an Automatic Autonomous Mini Prone-cone Microsatellite Docking Mechanism显示文摘The capability of docking, refueling, repairing, and updating microsatellites using automatic autonomous vehicles will be of significance critical value for design and operation of several space systems in the near feature. Automatic docking capability was successfully tested by many institutions such as National Space Development Agency in Japan, European Space Agency, National Aeronautics and Space Administration in USA, etc. However, there is still much more space for improvement of degree of automation during the process of docking with large deviations of the initial attitude. A novel automatic autonomous probe-cone docking mechanism used for microsatellite docking is proposed. This docking mechanism is designed according to the design indices such as miniaturization, degree of automation and automatic capture capability within large deviation of the initial attitude. On the basis of the virtual work principle, the dynamics modeling of the docking process is presented. The position of the contact point is then analyzed. Comprehensive system level simulation is conducted in the 13 kinds of typical operating conditions with the initial deviations. Capture performance is analyzed. The simulation results show that the docking mechanism can be smoothly captured within 2 s in all cases of large attitude deviation between the active and passive spacecrafts. A virtual prototype model of the docking mechanism is established through ADAMS for further verifying the correctness of the buffer parameter model and the autonomous docking capability. A laboratory platform is designed for on-the-ground experimental validation of the property of mini probe-cone docking mechanism. Repeated docking tests prove the proposed design of the mini probe-cone docking mechanism system for its high reliability, and automatic capture capability within large attitude range. The kinetic model of the docking capture process and the mechanism structure could provide some references for similar mechanism design of in-orbit spacecraft. | LAI Yinan DAI Ye TIAN Hao ZHANG Dawei | 2010 | Chinese Journal of Mechanical Engineering2010,23,3: | 3 |
| 15 | The Discovery of Magnesioferrite from Au (Fe, Cu) Magnesian Skarn Deposits and Study of the Magnesioferrite-Magnesiomagnetite Series显示文摘Magnesioferrite, a rare metasomatic mineral, was discovered for the first time in China from the Qinlou Au (Fe, Cu) magnesian skarn deposit, Sanpu, Huaibei, Auhui Province, and the Mulonggou Fe (Mo, Cu) magnesian skarn deposit, Luonan County, Shaanxi Province. In this paper, the geological setting, mineral associations, chemical composition, some physical properties, X-ray powder diffraction data and infrared spectroscopy of magnesioferrite and magnesiomagnetite are discussed. Magnesioferrite contains 17.66%-13.48% of MgO. Its main associated minerals are clinohumite, chondrodite, serpentine,, calcite and magnesiomagnetite. The density of magnesioferrite is 4.537-4.720, reflectances in percent are: 17.8-18.1, hardness is 838-900 kg/mm2, and the cell parameter a0 = 8.371-8.379 A. A systematic study of the magnesioferrite-magnesiomagnetite-magnetite series suggests that along with the increase of magnesioferrite molecules in the mineral, the density, reflectances and cell parameters decrease | ZHAO Yiming ZHANG Yinan BI Chengsi GUO Lihe | 1998 | Acta Geologica Sinica(English Edition)1998,72,4: | 3 |
| 16 | The synthesis of benzoxaboroles and their applications in medicinal chemistry显示文摘Benzoxaborole,as a versatile scaffold,plays important roles in organic synthesis,molecular recognition and supramolecular chemistry.It is also a privileged structure in medicinal chemistry due to its desirable physicochemical and drug-like properties.Recently,benzoxaboroles were widely applied as antifungal,antibacterial,antiviral,anti-parasite,and anti-inflammatory agents.This review covers the properties,synthetic methods and applications of benzoxaboroles in medicinal chemistry. | ZHANG Jiong ZHU MingYan LIN YiNan ZHOU HuChen | 2013 | Science China Chemistry2013,56,10: | 3 |
| 17 | Single-cell transcriptomics reveals gene signatures and alterations associated with aging in distinct neural stem/progenitor cell subpopulations显示文摘Aging associated cognitive decline has been linked to dampened neural stem/progenitor cells (NSC/NPCs) activities manifested by decreased proliferation, reduced propensity to produce neurons, and increased differentiation into astrocytes. While gene transcription changes objectively reveal molecular alterations of cells undergoing various biological processes, the search for molecular mechanisms underlying aging of NSC/NPCs has been confronted by the enormous heterogeneity in cellular compositions of the brain and the complex cellular microenvironment where NSC/NPCs reside. Moreover, brain NSC/NPCs themselves are not a homogenous population, making it even more difficult to uncover NSC/NPC sub-type specific aging mechanisms. Here, using both population-based and single cell transcriptome analyses of young and aged mouse forebrain ependymal and subependymal regions and comprehensive “big-data” processing, we report that NSC/NPCs reside in a rather inflammatory environment in aged brain, which likely contributes to the differentiation bias towards astrocytes versus neurons. Moreover, single cell transcriptome analyses revealed that different aged NSC/NPC subpopulations, while all have reduced cell proliferation, use different gene transcription programs to regulate age-dependent decline in cell cycle. Interestingly, changes in cell proliferation capacity are not influenced by inflammatory cytokines, but likely result from cell intrinsic mechanisms. The Erk/Mapk pathway appears to be critically involved in regulating age-dependent changes in the capacity for NSC/NPCs to undergo clonal expansion. Together this study is the first example of using population and single cell based transcriptome analyses to unveil the molecular interplay between different NSC/NPCs and their microenvironment in the context of the aging brain. | Zhanpinq Shi Yanan Geng Jiping Liu Huina Zhang Liqiang Zhou Quan Lin Juehua Yu Kunshan Zhang Jie Liu Xinpei Gao Chunxue Zhang Yinan Yao Chong Zhang Yi E. Sun | 2018 | Protein & Cell2018,9,4: | 3 |
| 18 | Segmental Translocation Contributed to the Origin of the Brassica S-locus显示文摘Self-incompatibility(SI),which has recurred during the evolution of plants,is one of the most important cross-pollination mating systems.Three S-loci have been reported in Brassicaceae,namely,Arabidopsis lyrata(Al),Brassica(Br),and Leavenworthia alabamica(La)S-loci.Here,through multi-genomic comparative analysis of 20 species,we revealed that the most ancient S-locus was formed prior to the divergence of Brassicaceae lineage I and II.Itwas retained and inherited by Arabidopsis,as the Al S-locus in Brassicaceae lineage I.Furthermore,we found that the Br S-locus,which has been widely used in the breeding of Brassica crops to generate hybrid seeds,was formed through segmental translocation(ST)in the hexaploid ancestor of Brassica in Brassicaceae lineage II.The Br S-locus was evolved through a ST from one of the triplicated ancestral S-locus paralogs in the Brassica hexaploidy ancestor,while the other two S-locus paralogs were lost.Together with the previous discovery that the La S-locus was formed through a secondary origin in Brassicaceae lineage I,we conclude the monophyletic origin of Al and Br S-loci and clarify the evolutionary route of S-loci in the Brassicaceae family.Our findings will contribute to evolutionary studies and breeding applications of the S-locus in Brassicaceae. | Yinan Cui Mu Zhuang Jian Wu Jisheng Liu Yiyue Zhang Lingkui Zhang Yile Huang Xu Cai Jianli Liang Kang Zhang Xiaowu Wang Feng Cheng | 2020 | Horticultural Plant Journal2020,6,3: | 2 |
| 19 | Studies on QCM-type NO2 Gas Sensor Based on Graphene Composites at Room Temperature显示文摘Synthetic graphene composite was modified on a transducer of quartz crystal microbalance(QCM) tofabricate a gas sensor for low concentration nitrogen dioxide(NO2) detection. The gas sensing properties of the QCMcoated with SnO2-rGO and AgNPs-SnO2-rGO composites were investigated when exposing QCM to low NO2 con-centration(2.05--20.5 mg/m3) atmosphere at room temperature. The sensing performances of ,he QCM withAgNPs-SnO2-rGO composites were enhanced by the introduction of Ag nanoparticles, and the QCM modified withAgNPs-SnO2-rGO composites could detect NO2 at room temperature. | QI Pengjia WANG Ziying WANG Rui XU Yinan ZHANG Tong | 2016 | Chemical Research in Chinese Universities2016,32,6: | 2 |
| 20 | Cardiac-specific knockout of ET_(A)receptor mitigates low ambient temperature-induced cardiac hypertrophy and contractile dysfunction显示文摘Cold exposure is associated with oxidative stress and cardiac dysfunction.The endothelin(ET)system,which plays a key role in myocardial homeostasis,may participate in cold exposure-induced cardiovascular dysfunction.This study was designed to examine the role of ET-1 in cold stress-induced cardiac geometric and contractile responses.Wild-type(WT)and ETA receptor knockout(ETAKO)mice were assigned to normal or cold exposure(48C)environment for 2 and 5 weeks prior to evaluation of cardiac geometry,contractile,and intracellular Ca21 properties.Levels of the temperature sensor transient receptor potential vanilloid(TRPV1),mitochondrial proteins for biogenesis and oxidative phosphorylation,including UCP2,HSP90,and PGC1a were evaluated.Cold stress triggered cardiac hypertrophy,depressed myocardial contractile capacity,including fractional shortening,peak shortening,and maximal velocity of shortening/relengthening,reduced intracellular Ca21 release,prolonged intracellular Ca21 decay and relengthening duration,generation of ROS and superoxide,as well as apoptosis,the effects of which were blunted by ETAKO.Western blotting revealed downregulated TRPV1 and PGC1a as well as upregulated UCP2 and activation of GSK3b,GATA4,and CREB in cold-stressed WT mouse hearts,which were obliterated by ETAKO.Levels of HSP90,an essential regulator for thermotolerance,were unchanged.The TRPV1 agonist SA13353 attenuated whereas TRPV1 antagonist capsazepine mimicked cold stress-or ET-1-induced cardiac anomalies.The GSK3b inhibitor SB216763 ablated cold stress-induced cardiac contractile(but not remodeling)changes and ET-1-induced TRPV1 downregulation.These data suggest that ETAKO protects against cold exposure-induced cardiac remodeling and dysfunction mediated through TRPV1 and mitochondrial function. | Yingmei Zhang Linlin Li Yinan Hua Jennifer M.Nunn Feng Dong Masashi Yanagisawa Jun Ren | 2012 | Journal of Molecular Cell Biology2012,4,2: | 2 |