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| 1 | Interventional effect of electroacupuncture combined with medicine on monoamine neurotransmitters in hypothalamus of rats with ulcerative colitis显示文摘BACKGROUND: Ulcerative colitis (UC) is conventionally treated with sulfasalazine and other aminosalicylic acids. The symptoms of UC can be rapidly controlled, but high recurrence, severe adverse reactions and other shortages exist commonly. Whether electroacupuncture combined with medicine can make up these shortages remains unclear. OBJECTIVE: This study was to observe the regulatory effect of electroacupuncture combined with medicine on monoamine neurotransmitter in hypothalamus of rats with ulcerative colitis, and to analyze the pathogenesis of UC and the action pathway of electroacupuncture combined with medicine. DESIGN: A randomized controlled observation. SETTING: Shanghai Institute of Acupuncture and Meridian. MATERIALS: Thirty involved male SD rats of clean grade, weighing (200±20)g, were provided by the Experimental Animal Center, Shanghai University of Traditional Chinese Medicine. Sulfasalazine was produced in the Shanghai Sanwei Pharmaceutical Co., Ltd [certification No. (1995)002083]. METHODS: This study was carried out in the State Laboratory (grade 3) for Acupuncture and Immunology, Shanghai Institute of Acupuncture and Meridian. The involved 30 rats were randomized into 5 groups: normal group, model group, electroacupuncture group, medicine group and electroacupuncture combined with medicine group, with 6 rats in each group. Rats in the latter 4 groups were prepared into models of UC. In the electroacupuncture group, Zusanli(shuang) point was selected. Electro-acupuncture apparatus (G6805Ⅱ type) was connected to the point and used to stimulate it with continuous wave, frequency of 2 Hz, electrical intensity 4 mA, 20 minutes a day, for 14 days successively. In the medicine group, rats were intragastrically administrated with sulfasalazine, twice a day, 3 mL once, for 14 days successively. In the electroacupuncture combined with medicine group, rats were treated with electroacupuncture and medicine simultaneously as described in the previous two groups. Rats in the model group and normal control group were untouched except for being fixed. MAIN OUTCOME MEASURES: The levels of noradrenaline acid tartrate (NE), 3-methoxy-4 hydroxyphenylglycol (MHPG), dopamine hydrochloride (DA), 3,4-dihydroxyphenylacetic acid (DOPAC), 5-hydroxytryptamine (5-HT) hydrochloride, homovanillic acid (HVA) and 5-hydroxyindole acetic acid (5-HIAA) of rats in each group were detected by high-performance liquid chromatography (HPLC)-electrochemical method. RESULTS: All the 30 involved rats entered into the stage of final analysis. ①Detection of NE and MHPG levels: After treatment, NE level in the hypothalamus of rats was significantly higher in the electroacupuncture combined with medicine group, electroacupuncture group and medicine group was all significantly higher than that in the model group, respectively (P < 0.01). After treatment, MHPG level in the metabolite of NE was very significantly higher in the electroacupuncture group than in the medicine group (P < 0.01). ②Detection of DA and DOPAC levels: After treatment, DA level in the hypothalamus of rats was very significantly higher in the medicine group than in the model group (P < 0.01). ③Detection of 5-HT, HVA and 5-HIAA levels: After treatment, 5-HIAA level in the hypothalamus of rats was significantly higher in the medicine group than in the model group (P < 0.05). CONCLUSION: The abnormal synthesis and metabolism of monoamine neurotransmitter in the central nervous system is one of pathogenesis of UC. Electroacupuncture combined with medicine might reach its goal of treatment by regulating the monoamine neurotransmitter disorder in the hypothalamus of rats with UC. | Yin Shi Shuang Li Huangan Wu Yi Yao Chen Zhao Zheng Shi Yejing Gong | 2007 | Neural Regeneration Research2007，2，9： | 4 |
| 2 | Electrolyte and current collector designs for stable lithium metal anodes显示文摘With the increasing demand for high energy-density batteries for portable electronics and large-scale energy storage systems,the lithium metal anode(LMA)has received tremendous attention because of its high theoretical capacity and low redox potential.However,the commercial application of LMAs is impeded by the uncontrolled growth of lithium dendrites.Such dendrite growth may result in internal short circuits,detrimental side reactions,and the formation of dead lithium.Therefore,the growth of lithium metal must be controlled.This article summarizes our recent efforts in inhibiting such dendrite growth,decreasing the detrimental side reactions,and elongating the LMA lifespan by optimizing the electrolyte structure and by designing appropriate current collectors.After identifying that the unstable solid electrolyte inter-face(SEI)film is responsible for the potential dropping in carbonate electrolytes,we developed LiPF_(6)-LiNO_(3) dual-salt electrolyte and lithium bis(fluorosulfonyl)imide(LiFSI)-carbonate electrolyte to stabilize the SEI film of LMAs.In addition,we achieved controlled lithium depos-ition by designing the structure and material of the current collectors,including selective lithium deposition in porous current collectors,lithio-philic metal guided lithium deposition,and iron carbide induced underpotential lithium deposition in nano-cavities.The limitations of the cur-rent strategies and prospects for future research are also presented. | Simeng Zhang Gaojing Yang Xiaoyun Li Yejing Li Zhaoxiang Wang Liquan Chen | 2022 | International Journal of Minerals,Metallurgy and Materials2022，29，5： | 2 |
| 3 | Kinetic Limits of Graphite Anode for Fast‑Charging Lithium‑Ion Batteries显示文摘Fast-charging lithium-ion batteries are highly required,especially in reducing the mileage anxiety of the widespread electric vehicles.One of the biggest bottlenecks lies in the sluggish kinetics of the Li^(+)intercalation into the graphite anode;slow intercalation will lead to lithium metal plating,severe side reactions,and safety concerns.The premise to solve these problems is to fully understand the reaction pathways and rate-determining steps of graphite during fast Li^(+)intercalation.Herein,we compare the Li^(+)diffusion through the graphite particle,interface,and electrode,uncover the structure of the lithiated graphite at high current densities,and correlate them with the reaction kinetics and electrochemical performances.It is found that the rate-determining steps are highly dependent on the particle size,interphase property,and electrode configuration.Insufficient Li^(+)diffusion leads to high polarization,incomplete intercalation,and the coexistence of several staging structures.Interfacial Li^(+)diffusion and electrode transportation are the main rate-determining steps if the particle size is less than 10μm.The former is highly dependent on the electrolyte chemistry and can be enhanced by constructing a fluorinated interphase.Our findings enrich the understanding of the graphite structural evolution during rapid Li^(+)intercalation,decipher the bottleneck for the sluggish reaction kinetics,and provide strategic guidelines to boost the fast-charging performance of graphite anode. | Suting Weng Gaojing Yang Simeng Zhang Xiaozhi Liu Xiao Zhang Zepeng Liu Mengyan Cao Mehmet Nurullah Ateş Yejing Li Liquan Chen Zhaoxiang Wang Xuefeng Wang | 2023 | Nano-Micro Letters2023，15，11： | 1 |
| 4 | Localized-domains staging structure and evolution in lithiated graphite显示文摘Intercalation provides to the host materials a means for controlled variation of many physical/chemical properties and dominates the reactions in metal‐ion batteries.Of particular interest is the graphite intercalation compounds with intriguing staging structures,which however are still unclear,especially in their nanostructure and dynamic transition mechanism.Herein,the nature of the staging structure and evolution of the lithium(Li)‐intercalated graphite was revealed by cryogenic‐transmission electron microscopy and other methods at the nanoscale.The intercalated Li‐ions distribute unevenly,generating local stress and dislocations in the graphitic structure.Each staging compound is found macroscopically ordered but microscopically inhomogeneous,exhibiting a localized‐domains structural model.Our findings uncover the correlation between the long‐range ordered structure and short‐range domains,refresh the insights on the staging structure and transition of Li‐intercalated/deintercalated graphite,and provide effective ways to enhance the reaction kinetic in rechargeable batteries by defect engineering. | Suting Weng Siyuan Wu Zepeng Liu Gaojing Yang Xiaozhi Liu Xiao Zhang Chu Zhang Qiuyan Liu Yao Huang Yejing Li Mehmet NAteş Dong Su Lin Gu Hong Li Liquan Chen Ruijuan Xiao Zhaoxiang Wang Xuefeng Wang | 2023 | Carbon Energy2023，5，1： | 1 |
| 5 | Ultrahigh electrostrain with excellent fatigue resistance in textured Nb^(5+)-doped(Bi_(0.5)Na_(0.5))TiO3-based piezoceramics显示文摘(Bi_(0.5)Na_(0.5))TiO_(3)(BNT)-based lead-free piezoceramics exhibit excellent electric field-induced strain(electrostrain)properties,but often suffer from large hysteresis and poor fatigue resistance,which strongly limit their applications.Here,<00l>textured Nb5+-doped 0.8(Bi_(0.5)Na_(0.5))TiO_(3)–0.2(Bi_(0.5)K_(0.5))TiO_(3)(0.8BNT–0.2BKT)ceramics with a high degree of texturing(~80%)were prepared by the reactive template grain growth(RTGG)method using Bi4Ti3O12 as a template.By the combination of donor doping in the B-site and the RTGG method,the electrostrain performance achieves a significant enhancement.A high electrostrain of 0.65%and a piezoelectric coefficient(*33 d)of 1083 pm/V with reduced hysteresis at an electric field of 6 kV/mm are obtained.No electrostrain performance degradation is observed after unipolar electric field loading of 10^(5)cycles,showing excellent fatigue endurance.These results indicate that the texturing BNT-based lead-free piezoceramics by the RTGG method is a useful approach to developing eco-friendly actuators. | Lixiang Lai Zhihao Zhao Shuo Tian Bao Ou Gaoyuan Liang Bin Li Yejing Dai | 2023 | Journal of Advanced Ceramics2023，12，3： | 0 |
| 6 | Isolation and identification of phosphorylated lysine peptides by retention time difference combining dimethyl labeling strategy显示文摘Protein phosphorylation plays essential roles in various biological procedures. Despite the well-established enrichment strategies for O-phosphoproteomics, the intrinsic acid lability of N–P phosphoramidate bond(phosphorylation of histidine, arginine and lysine) has impaired the progress of N-phosphoproteomics. Herein, we reported a retention time difference combining dimethyl labeling(ReDD) strategy for the isolation and identification of phosphorylated lysine(pLys) peptides. By such a method, pLys peptide could be isolated under 100000-fold interference of non-phosphorylated peptides. Furthermore, ReDD strategy was applied to map pLys sites from E. coli samples, leading to the identification of 11 pLys sites, among which K26p that originating from autonomous glycyl radical cofactor was validated both in mass spectrometry and HPLC co-elution experiments. Furthermore, 112 pLys sites from 100 proteins were identified in HeLa cells. All these results demonstrate that ReDD could provide a first glimpse into Lys phosphorylation, and could be an important step toward the global perspective on protein phosphorylation. | Yechen Hu Yejing Weng Bo Jiang Xiao Li Xiaodan Zhang Baofeng Zhao Qiong Wu Zhen Liang Lihua Zhang Yukui Zhang | 2019 | Science China Chemistry2019，62，6： | 0 |
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