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1A rapid advice guideline for the diagnosis and treatment of 2019 novel coronavirus(2019-nCoV) infected pneumonia(standard version)显示文摘In December 2019, a new type viral pneumonia cases occurred in Wuhan, Hubei Province;and then named '2019 novel coronavirus(2019-nCoV)' by the World Health Organization(WHO) on 12 January 2020. For it is a never been experienced respiratory disease before and with infection ability widely and quickly, it attracted the world’s attention but without treatment and control manual. For the request from frontline clinicians and public health professionals of 2019-nCoV infected pneumonia management, an evidence-based guideline urgently needs to be developed. Therefore, we drafted this guideline according to the rapid advice guidelines methodology and general rules of WHO guideline development;we also added the first-hand management data of Zhongnan Hospital of Wuhan University. This guideline includes the guideline methodology, epidemiological characteristics, disease screening and population prevention, diagnosis, treatment and control(including traditional Chinese Medicine), nosocomial infection prevention and control, and disease nursing of the 2019-nCoV. Moreover, we also provide a whole process of a successful treatment case of the severe 2019-nCoV infected pneumonia and experience and lessons of hospital rescue for 2019-nCoV infections. This rapid advice guideline is suitable for the first frontline doctors and nurses, managers of hospitals and healthcare sections, community residents, public health persons, relevant researchers, and all person who are interested in the 2019-nCoV.Ying-Hui Jin Lin Cai Zhen-Shun Cheng Hong Cheng Tong Deng Yi-Pin Fan Cheng Fang Di Huang Lu-Qi Huang Qiao Huang Yong Han Bo Hu Fen Hu Bing-Hui Li Yi-Rong Li Ke Liang Li-Kai Lin Li-Sha Luo Jing Ma Lin-Lu Ma Zhi-Yong Peng Yun-Bao Pan Zhen-Yu Pan Xue-Qun Ren Hui-Min Sun Ying Wang Yun-Yun Wang Hong Weng Chao-Jie Wei Dong-Fang Wu Jian Xia Yong Xiong Hai-Bo Xu Xiao-Mei Yao Yu-Feng Yuan Tai-Sheng Ye Xiao-Chun Zhang Ying-Wen Zhang Yin-Gao Zhang Hua-Min Zhang Yan Zhao Ming-Juan Zhao Hao Zi Xian-Tao Zeng Yong-Yan Wang Xing-Huan Wang 2020Military Medical Research2020,7,1:161
22018 Chinese Pediatric Cardiology Society(CPCS) guideline for diagnosis and treatment of syncope in children and adolescents显示文摘Syncope belongs to the transient loss of consciousness(TLOC), characterized by a rapid onset, short duration, and spontaneous complete recovery. It is common in children and adolescents, accounting for 1% to 2% of emergency department visits.Recurrent syncope can seriously affect children's physical and mental health, learning ability and quality of life and sometimes cardiac syncope even poses a risk of sudden death. The present guideline for the diagnosis and treatment of syncope in children and adolescents was developed for guiding a better clinical management of pediatric syncope. Based on the globally recent development and the evidence-based data in China, 2018 Chinese Pediatric Cardiology Society(CPCS) guideline for diagnosis and treatment of syncope in children and adolescents was jointly prepared by the Pediatric Cardiology Society, Chinese Pediatric Society, Chinese Medical Association(CMA)/Committee on Pediatric Syncope, Pediatricians Branch, Chinese Medical Doctor Association(CMDA)/Committee on Pediatric Cardiology, Chinese College of Cardiovascular Physicians, Chinese Medical Doctor Association(CMDA)/Pediatric Cardiology Society, Beijing Pediatric Society, Beijing Medical Association(BMA). The present guideline includes the underlying diseases of syncope in children and adolescents, the diagnostic procedures, methodology and clinical significance of standing test and headup tilt test, the clinical diagnosis vasovagal syncope, postural orthostatic tachycardia syndrome, orthostatic hypotension and orthostatic hypertension, and the treatment of syncope as well as follow-up.Cheng Wang Yaqi Li Ying Liao Hong Tian Min Huang Xiangyu Dong Lin Shi Jinghui Sun Hongfang Jin Junbao Du Jindou An Jie Chen Mingwu Chen Qi Chen Sun Chen Yonghong Chen Zhi Chen Adolphus Kai-tung Chau Junbao Du Zhongdong Du Junkai Duan Hongyu Duan Xiangyu Dong Lin Feng Lijun Fu Fangqi Gong Yonghao Gui Ling Han Zhenhui Han Bing He Zhixu He Xiufen Hu Yimin Hua Guoying Huang Min Huang Ping Huang Yujuan Huang Hongfang Jin Mei Jin Bo Li Fen Li Tao Li Xiaohui Li Xiaoyan Liu Yan Li Haitao Lv Tiewei Lv Zipu Li Luyi Ma Silin Pan Yusheng Pang Hua Peng Yuming Qin Jie Shen Lin Shi Kun Sun Jinghui Sun Hong Tian Jie Tian Cheng Wang Hong Wang Lei Wang Jinju Wang Wendi Wang Yuli Wang Rongzhou Wu Tianhe Xia Yanyan Xiao Chunhong Xie Yanlin Xing Zhenyu Xiong Baoyuan Xu Yi Xu Hui Yan Shiwei Yang Qijian Yi Xia Yu Xianyi Yu Yue Yuan Hongyan Zhang Huili Zhang Li Zhang Qingyou Zhang Xi Zhang Yanmin Zhang Zhiwei Zhang Cuifen Zhao Bin Zhou Hua Zhu 2018Science Bulletin2018,63,23:54
3Paleogene-Neogene stratigraphic realm and sedimentary sequence of the Qinghai-Tibet Plateau and their response to uplift of the plateau显示文摘Based on the data of 1:250000 geological mapping completed by CGS and the previous literature of the Cenozoic strata, 98 remnant basins and 5 stratigraphic realms with 13 stratigraphic subrealms have been recognized on the Qinghai-Tibet Plateau and its adjacent area. Through the research of the types of remnant basins, tectonic setting, stratigraphic sequence and sedimentary characteristics, contact relationship between the strata, the formation time and evolution history of sediments, we divided the uplift process and sedimentary response of the Qinghai-Tibet Plateau into 3 stages and 8 sub-stages, namely, subduction-collision uplift stage (65-34 Ma) with three sub-stages, intercontinental convergence and compressive uplift stage (34-13 Ma) with three sub-stages, and intercontinental isostatic adjustment uplift stage (since 13 Ma) with two sub-stages.ZHANG KeXin WANG GuoCan JI JunLiang LUO ManSheng KOU XiaoHu WANG YueMing XU YaDong CHEN FenNing CHEN RuiMing SONG BoWen ZHANG JianYu LIANG YinPing 2010Science China Earth Sciences2010,53,9:49
4Progress of potato staple food research and industry development in China显示文摘Potato is the largest non-cereal food crop worldwide and ranked as the world's fourth most important food crop after rice, wheat, and maize. Potato is a vital food-security crop and substitute for cereal crop considering its high yield and great nutritive value. Therefore, by replacing wheat, rice or maize in traditional staple foods partly by potato, the nutritional value of traditional foods and the utilization of potato are expected to be improved. China is the largest potato producer worldwide in terms of either volume or area. However, majority of potatoes are consumed as fresh vegetables for cuisine, and the industrial processing rate is much lower than the global average. Thus, research and development for nutritional potato stable food suitable for the dietary habits of Chinese residents are of great significance. However, we still confronted plenty of constraints in the development of potato staple food. In order to develop potato staple food suitable for Chinese residents' dietary habit like noodles, Mantou(steamed bread), rice and rice noodles, also to industrialize production of potato staple foods, some transformations need to be realized. Independent innovation is the only choice to realize the potato staple food processing and industrial development strategy on the technical level. Thus a lot of researches have been done to promote the development of potato staple food in China. Up to now, we already developed a series kinds of potato staple foods and some of these staple foods have already been widely promoted in Chinese markets.ZHANG Hong XU Fen WU Yu HU Hong-hai DAI Xiao-feng 2017Journal of Integrative Agriculture2017,16,12:42
5Tree ring based streamflow reconstruction for the Upper Yellow River over the past 1234 years显示文摘We established a Juniperus przewalski tree ring width chronology, based on tree ring cores collected from the A’nyêmaqên Mountains. Statistical analysis showed that the chronology was highly correlated with instrumental streamflow records from previous August to current July from the Tangnaihai Station in the upper reaches of the Yellow River, with a correlation coefficient of 0.656. Streamflow for the upper reaches of the Yellow River was reconstructed for the past 1234 years. Low flow periods for the 11-year averaged streamflow reconstruction were definite as lower than mean plus 1 standard deviation, and high flow periods were higher than mean minus 1 standard deviation. Over the past 1234 years, high flows occurred 18 times, and low flows occurred 12 times. The main low flow periods were identified as AD 1140–1156, AD 1295–1309, AD 1473–1500, and AD 1820–1847, and the main high flow periods were identified as AD 846–873, and AD 1375–1400. Extremely low streamflow over the reconstruction period was seen during the late 15th century, coinciding with a widespread drought phenomenon, which took place in the northeastern Tibetan Plateau over the same period. Reconstructed streamflow shows significant low-frequency variability, which is in line with drought variability of neighboring regions, as inferred from tree rings and other proxies. Multi-taper spectral analysis suggests the existence of significant periods of 2–5, 22, 35–38, 55–62, and 114–227 years, particularly significant for cyclic variations of years 159 and 36.GOU XiaoHua DENG Yang CHEN FaHu YANG MeiXue FANG KeYan GAO LinLin YANG Tao ZHANG Fen 2010Chinese Science Bulletin2010,55,36:37
6Cenozoic sedimentary records and geochronological constraints of differential uplift of the Qinghai-Tibet Plateau显示文摘Geological mapping data (1:250000) in the Qinghai-Tibet Plateau and its adjacent regions reveal the sediment sequences, distribution and tectonic evolution of the 92 Tertiary remnant basins. Southern Tibet and the Yecheng area in Xinjiang, located at southern and northwestern margins of the Qinghai-Tibet Plateau, respectively, were parts of the Neo-Tethys remnant sea in the Paleogene. In southern Tibet, both the subabyssal and abyssal sequences occur at the Gyangze, Saga, Guoyala, and Sangmai areas. The deep-water facies successions outcrop in the west, whereas the shallow-water facies sequences in the east, indicating the east to the west retreat of the Neo-Tethys Ocean. The retreat of the Neo-Tethys Ocean in the east was contributed to the earlier tectonic uplift of the eastern Qinghai-Tibet Plateau. The uplift process of the Plateau from the Late Cretaceous to Pliocene is described as follows: During the Late Cretaceous, tectonic uplift of the Qinghai-Tibet Plateau occurred in the northeastern part and the configuration of the Qinghai-Tibet Plateau was characterized by rise in the northeast and depression in the west. In the Paleocene-Eocene interval, the Tengchong-Baingoin and Kuyake-Golmud areas experienced local tectonic uplifting, the West Kunlun uplift zone broadened easterly, the Qilian uplift zone broadened southerly, and the Songpan-Garzê uplift zone shrank easterly. The Oligocene configuration of the Qinghai-Tibet Plateau was characterized by mountain chains rising along its margins and sedimentary basins in the central part because of tectonic uplifts of the Gangdisê and the Himalaya blocks. Meanwhile, the Kunlun-Altyn-Qilian uplift zones have also broadened southerly and northerly. In contrast, the great uplift zones of the Gangdisê, the Himalaya, the Karakorum, and the Kunlun blocks characterize the paleogeographic contours of the Qinghai-Tibet Plateau during the Miocene-Pliocene. Additionally, the thermochronological data on tectonic uplift events in southern Tibet, West Kunlun Mountains, Altyn Tagh, eastern Tibet, and western Sichuan all suggest that the most intense deformation occurred at 13-8 Ma and since 5 Ma, respectively, corresponding to two great uplift periods in Neogene. As a result, turnover of paleogeographic configuration of the Qinghai-Tibet Plateau occurred during the Neogene, experiencing a change from high contours in the east in the pre-Oligocene to high contours in the west at the end-Pliocene. The uplift of the Qinghai-Tibet Plateau during the Cenozoic was episodic, and the uplifts of various blocks within the Plateau were spatially and chronologically different.ZHANG KeXin WANG GuoCan CAO Kai LIU Chao XIANG ShuYuan HONG HanLie KOU XiaoHu XU YaDong CHEN FenNing MENG YanNing CHEN RuiMing 2008Science China Earth Sciences2008,51,11:31
75-Hydroxymethylcytosine signatures in circulating cell-free DNA as diagnostic biomarkers for human cancers显示文摘象 5-methylcytosine (5mC ) 和 5-hydroxymethylcytosine (5hmC ) 那样的 DNA 修正是知道在哺乳动物影响全球基因表示的 epigenetic 标记。在人的染色体,与基因表示的靠近的关联和高化学的稳定性给他们的流行,这些 DNA epigenetic 标记能为癌症用作理想的 biomarkers 诊断。利用一种高度敏感、选择的化学标记技术,我们这里报导在传播没有房间的 DNA ( cfDNA )并且在从最近与 colorectal 诊断的 260 个病人的一个队收集的配对的肿瘤和邻近的纸巾的 genomic DNA ( gDNA )的 5hmC 的染色体宽的介绍,胃,胰腺,从 90 个健康个人的肝或甲状腺癌症和正常纸巾。5hmC 主要在与开的染色质和容许的 histone 修正重合的 transcriptionally 活跃的区域被散布。柔韧的联系癌症的 5hmC 签名在 cfDNA 被识别为特定的癌症类型是特征的。传播 cfDNA 的 5hmC 底 biomarkers colorectal 和胃的癌症是高度预兆的并且比常规 biomarkers 优异并且比得上从织物活体检视的 5hmC biomarkers。因此,这新策略能从血样品的分析为癌症的诊断和预后导致有效、最低限度地侵略的方法的发展。Wenshuai Li Xu Zhang Xingyu Lu Lei You Yanqun Song Zhongguang Luo Jun Zhang Ji Nie Wanwei Zheng Diannan Xu Yaping Wang Yuanqiang Dong Shulin Yu Jun Hong Jianping Shi Hankun Hao Fen Luo Luchun Hua Peng Wang Xiaoping Qian Fang Yuan Lianhuan Wei Ming Cui Taiping Zhang Quan Liao Menghua Dai Ziwen Liu Ge Chen Katherine Meckel Sarbani Adhikari Guifang Jia Marc B Bissonnette Xinxiang Zhang Yupei Zhao Wei Zhang Chuan He Jie Liu 2017Cell Research2017,27,10:30
8Effect of nuclear factor kappa B on intercellular adhesion molecule-1 expression and neutrophil infiltration in lung injury induced by intestinal ischemia/reperfusion in rats显示文摘瞄准:为了在肺损害的致病调查原子因素 kappa B (NF-kappaB ) 的角色,导致了旁边肠的 ischemia/reperfusion (I/R ) ,和它细胞间的粘附 molecule-1 (ICAM-1 ) 上的效果表示和嗜中性的渗入。方法:24 只 Wistar 老鼠随机被划分成控制, I/R 和吡咯烷 dithiocarbamate (PDTC ) 处理组,在各个的 n=8。I/R 组和 PDTC 治疗组织为 2 h 为 1 h 和灌注堵塞的收到的优异 mys 伤寒动脉(SMA ) 。PDTC 组在外科前与 2% 100 mg/kg PDTC 1 h 的腹膜内注射被管理。肺组织学和支气管 alveolus 肺液体(BALF ) 蛋白质是 assayed。浆液 IL-6,肺 malondialdehyde (MDA ) 和象 NF-kappaB 和 ICAM-1 的表示水平一样的 myeloperoxidase (军邮局) 被测量。结果:肺损害由肠的 I/R 导致了,被浮肿,出血和嗜中性的渗入以及由 BALF 的重要升起描绘蛋白质。比作控制组,在 I/R 显著地增加的浆液 IL-6 和肺 MDA 和军邮局的层次组织(P=0.001 ) 。NF-kappaB p65 和 ICAM-1 的强壮的积极表示被观察。在 PDTC 的管理以后,象 NF-kappaB 和 ICAM-1 一样的浆液 IL-6,肺 MDA 和军邮局的水平显著地减少了(P<0.05 ) 什么时候与 I/R 相比组。结论:NF-kappaB 的激活在肠的 I/R 直在调整嗜中性的渗入和肺 ICAM-1 表示上面导致的肺损害的致病起一个重要作用。NF-kappaB 的一个禁止者能阻止肺损害的 PDTC 通过禁止 NF-kappaB 的活动由肠的 I/R 导致了。Xiao-Feng Tian Ji-Hong Yao Ying-Hua Li Xue-Song Zhang Bing-An Fen Chun-Ming Yang Shu-Sen Zheng 2006World Journal of Gastroenterology2006,12,3:28
9Layered double hydroxide coatings on magnesium alloys: A review显示文摘Layered double hydroxides(LDHs) as a class of anionic clays have extensive applications due to their unique structures. Nowadays, the emphasis is laid on the development of LDH coatings for corrosion resistance and medical applications. Thus, this review highlights synthetic methods of LDH coatings and LDH-based composite coatings on magnesium alloys. Special attention is focused on self-healing,biocompatible and self-cleaning LDH-based composite coatings on magnesium alloys.Lian Guo Wei Wu Yongfeng Zhou Fen Zhang Rongchang Zeng Jianmin Zeng 2018Journal of Materials Science & Technology2018,34,9:28
10Overexpression of B7-H3 augments anti-apoptosis of colorectal cancer cells by Jak2-STAT3显示文摘AIM:To investigate the role of the overexpression of B7-H3 in apoptosis in colorectal cancer cell lines and the underlying molecular mechanisms.METHODS:SW620 cells that highly overexpressed B7-H3(SW620-B7-H3-EGFP)and HCT8 cells stably transfected with B7-H3 sh RNA(HCT8-sh B7-H3)were previously constructed in our laboratory.Cells transfected with p IRES2-EGFP were used as negative controls(SW620-NC and HCT8-NC).Real-time PCR and western blotting analysis were used to detect the m RNA and protein expressions of the apoptosis regulator proteins Bcl-2,Bcl-xl and Bax.A cell proliferation assay was used to evaluate the survival rate and drug sensitivity of the cells.The effect of drug resistance was detected by a cell cycle assay.Active caspase-3western blotting was used to reflect the anti-apoptotic ability of cells.Western blotting was also performed to determine the expression of proteins associated with the Jak2-STAT3 signaling pathway and the apoptosis regulator proteins after the treatment with AG490,a Jak2 specific inhibitor,in B7-H3 overexpressing cells.The data were analyzed by Graph Pad Prism 6 using a non-paired t-test.RESULTS:Whether by overexpression in SW620cells or downregulation in HCT8,B7-H3 significantly affected the expression of anti-and pro-apoptotic proteins,at both the transcriptional and translational levels,compared with the negative control(P<0.05).A cell proliferation assay revealed that B7-H3overexpression increased the drug resistance of cells and resulted in a higher survival rate(P<0.05).In addition,the results of cell cycle and active caspase-3western blotting proved that B7-H3 overexpression inhibited apoptosis in colorectal cancer cell lines(P<0.05).B7-H3 overexpression improved Jak2 and STAT3phosphorylation and,in turn,increased the expression of the downstream anti-apoptotic proteins B-cell CLL/lymphoma 2(Bcl-2)and Bcl-xl,based on western blotting(P<0.05).After treating B7-H3 overexpressing cells with the Jak2-specific inhibitor AG490,the phosphorylation of Jak2 and STAT3,and the expression of Bcl-2 and Bcl-xl,decreased accordingly(P<0.05).This finding suggested that the Jak2-STAT3 pathway is involved in the mechanism mediating the anti-apoptotic ability of B7-H3.CONCLUSION:The overexpression of B7-H3 induces resistance to apoptosis in colorectal cancer cell lines by upregulating the Jak2-STAT3 signaling pathway,potentially providing new approaches to the treatment of colorectal cancer.Ting Zhang Bo Jiang Shi-Tao Zou Fen Liu Dong Hua 2015World Journal of Gastroenterology2015,21,6:21
11Chinese Named Entity Recognition_via Joint Identification and Categorization显示文摘ZHOU Junsheng QU Weiguang ZHANG Fen 2013Chinese Journal of Electronics2013,22,2:20
12Fabrication of the Superhydrophobic Surface on Magnesium Alloy and Its Corrosion Resistance显示文摘The superhydrophobic surface was fabricated on the AZ31 alloy by the combination of the hydrothermal treatment method and post modification with stearic acid. The superhydrophobic surface showed a static water contact angle of 157.6°. The characteristics of the coatings were characterized by scanning electron microscopy(SEM), X-ray diffraction(XRD) and Fourier transform infrared spectroscopy(FTIR). The corrosion resistance of the superhydrophobic coatings was investigated by potentiodynamic polarization test and electrochemical impedance spectroscopy(EIS). The results revealed that the superhydrophobic coatings, characterized by petal-like structure significantly improved the corrosion resistance of the AZ31 alloy.Fen Zhang Changlei Zhang Liang Song Rongchang Zeng Shuoqi Li Hongzhi Cui 2015Journal of Materials Science & Technology2015,31,11:17
13Corrosion resistance of in-situ growth of nano-sized Mg(OH)2 on micro-arc oxidized magnesium alloy AZ31—Influence of EDTA显示文摘One of the major obstacles for the clinical use of biodegradable magnesium(Mg)-based materials is their high corrosion rate. Micro-arc oxidation(MAO) coatings on Mg alloys provide mild corrosion protection owing to their porous structure. Hence, in this study a dense Mg(OH)2 film was fabricated on MAO-coated Mg alloy AZ31 in an alkaline electrolyte containing ethylenediamine tetraacetic acid disodium(EDTA-2 Na) to reinforce the protection. Surface morphology, chemical composition and growth process of the MAO/Mg(OH)2 hybrid coating were examined using field-emission scanning electron microscopy, energy dispersive X-ray spectrometer, X-ray diffraction, X-ray photoelectron spectroscopy and Fourier transform infrared spectrophotometer. Corrosion resistance of the coatings was evaluated via potentiodynamic polarization curves and hydrogen evolution tests. Results manifested that the Mg(OH)2 coating possesses a porous nano-sized structure and completely seals the micro-pores and micro-cracks of the MAO coating.The intermetallic compound of AlMn phase in the substrate plays a key role in the growth of Mg(OH)2 film. The current density of Mg(OH)2-MAO composite coating decreases three orders of magnitude in comparison with that of bare substrate, indicating excellent corrosion resistance. The Mg(OH)2-MAO composite coating is beneficial to the formation of calcium phosphate corrosion products on the surface of Mg alloy AZ31, demonstrating a great promise for orthopaedic applications.Chang-Yang Li Xiao-Li Fan Rong-Chang Zeng Lan-Yue Cui Shuo-Qi Li Fen Zhang Qing-Kun He M. Bobby Kannan Hong-Wei (George) Jiang Dong-Chu Chen Shao-Kang Guan 2019Journal of Materials Science & Technology2019,35,6:16
14Trajectory Tracking of Autonomous Vehicle with the Fusion of DYC and Longitudinal–Lateral Control显示文摘The current research of autonomous vehicle motion control mainly focuses on trajectory tracking and velocity tracking. However, numerous studies deal with trajectory tracking and velocity tracking separately, and the yaw stability is seldom considered during trajectory tracking. In this research, a combination of the longitudinal–lateral control method with the yaw stability in the trajectory tracking for autonomous vehicles is studied. Based on the vehicle dynamics, considering the longitudinal and lateral motion of the vehicle, the velocity tracking and trajectory tracking problems can be attributed to the longitudinal and lateral control. A sliding mode variable structure control method is used in the longitudinal control. The total driving force is obtained from the velocity error in order to carry out velocity tracking. A linear time-varying model predictive control method is used in the lateral control to predict the required front wheel angle for trajectory tracking. Furthermore, a combined control framework is established to control the longitudinal and lateral motions and improve the reliability of the longitudinal and lateral direction control. On this basis, the driving force of a tire is allocated reasonably by using the direct yaw moment control, which ensures good yaw stability of the vehicle when tracking the trajectory. Simulation results indicate that the proposed control strategy is good in tracking the reference velocity and trajectory and improves the performance of the stability of the vehicle.Fen Lin Yaowen Zhang Youqun Zhao Guodong Yin Huiqi Zhang Kaizheng Wang 2019Chinese Journal of Mechanical Engineering2019,32,1:15
15Propofol protects against blood-spinal cord barrier disruption induced by ischemia/reperfusion injury显示文摘Propofol has been shown to exert neuroprotective effects on the injured spinal cord.However,the effect of propofol on the blood-spinal cord barrier(BSCB) after ischemia/reperfusion injury(IRI) is poorly understood.Therefore,we investigated whether propofol could maintain the integrity of the BSCB.Spinal cord IRI(SCIRI) was induced in rabbits by infrarenal aortic occlusion for 30 minutes.Propofol,30 mg/kg,was intravenously infused 10 minutes before aortic clamping as well as at the onset of reperfusion.Then,48 hours later,we performed histological and m RNA/protein analyses of the spinal cord.Propofol decreased histological damage to the spinal cord,attenuated the reduction in BSCB permeability,downregulated the m RNA and protein expression levels of matrix metalloprotease-9(MMP-9) and nuclear factor-κB(NF-κB),and upregulated the protein expression levels of occludin and claudin-5.Our findings suggest that propofol helps maintain BSCB integrity after SCIRI by reducing MMP-9 expression,by inhibiting the NF-κB signaling pathway,and by maintaining expression of tight junction proteins.Li-jie Xie Jin-xiu Huang Jian Yang Fen Yuan Shuang-shuang Zhang Qi-jing Yu Ji Hu 2017Neural Regeneration Research2017,12,1:14
16Edaravone injection reverses learning and memory deficits in a rat model of vascular dementia显示文摘Edaravone 是由禁止 endothelial 损害并且由改善施加 neuroprotective 效果的新奇免费激进的 scavenger 在大脑局部缺血的 neuronal 损坏。最近, edaravone 能减轻病理和 Alzheimers 疾病病人的认知赤字,这被报导。然而,它到脉管的痴呆(VaD ) 的关联不是清楚的。在这研究,我们部分堵塞了老鼠的双边的颈动脉动脉通过手术导致长期的服的 hypoperfusion (CCH ) , VaD 的一个著名老鼠模型。水迷宫和电压降低的禁止的测试被用来评估记忆赤字。superoxide dismutase 的活动 ?( 草皮) 并且喂奶脱氢酶(LDH ) , malondialdehyde 的内容 ?(MDA ) 并且全部的反应的氧种类被测量评估氧化压力水平。西方的污点分析被用来计算 synaptic 蛋白质表达式。有为一个 5 星期的时期的 edaravone 的治疗在有 CCH 的老鼠对空间的颠倒和害怕记忆赤字有能力,这被发现。Edaravone 显著地由增加草皮活动并且减少与 CCH 在老鼠的大脑减少了氧化应力的水平 MDA, LDH,和全部的反应的氧种类的内容。而且, edaravone 处理也与 CCH 在老鼠的海马恢复了多重 synaptic 蛋白质的层次。我们的数据提供在 VaD 支持 edaravone 的 neuroprotective 效果的直接证据。我们建议氧化应力的缓和和 synaptic 蛋白质的恢复在 neuroprotection 起重要作用。Xu Li Fen Lu Wei Li Lingzhi Qin Yong Yao Xuerong Ge Qingkai Yu Xinliang Liang Dongmei Zhao Xiaohong Li Jiewen Zhang 2017Acta Biochimica et Biophysica Sinica2017,49,1:14
17HBx-DNA probe preparation and its application in study of hepatocarcinogenesis显示文摘HBxDNAprobepreparationanditsapplicationinstudyofhepatocarcinogenesisGAOFengGuang,SUNWenSheng,CAOYingLin,ZHANGLiNing,SON...GAO FengGuang, SUN WenSheng, CAO YingLin, ZHANG LiNing, SONG Jing, LI HuaFen and YAN ShiKunKeywords hepatitis B virus liver neoplasms/etiology carcinoma, hepatocellular/etiology DNA probe 1998World Journal of Gastroenterology1998,4,4:12
18New insights into the effect of Tris-HCl and Tris on corrosion of magnesium alloy in presence of bicarbonate,sulfate,hydrogen phosphate and dihydrogen phosphate ions显示文摘In vitro degradation is an important approach to screening appropriate biomedical magnesium(Mg) alloys at low cost. However, corrosion products deposited on Mg alloys exert a critical impact on corrosion resistance. There are no acceptable criteria on the evaluation on degradation rate of Mg alloys. Understanding the degradation behavior of Mg alloys in presence of Tris buffer is necessary. An investigation was made to compare the influence of Tris-HCl and Tris on the corrosion behavior of Mg alloy AZ31 in the presence of various anions of simulated body fluids via hydrogen evolution, p H value and electrochemical tests.The results demonstrated that the Tris-HCl buffer resulted in general corrosion due to the inhibition of the formation of corrosion products and thus increased the corrosion rate of the AZ31 alloy. Whereas Tris gave rise to pitting corrosion or general corrosion due to the fact that the hydrolysis of the amino-group of Tris led to an increase in solution p H value, and promoted the formation of corrosion products and thus a significant reduction in corrosion rate. In addition, the corrosion mechanisms in the presence of Tris-HCl and Tris were proposed. Tris-HCl as a buffer prevented the formation of precipitates of HCO_3^-, SO_4^(2-),HPO_4^(2-) and H_2PO_4^- ions during the corrosion of the AZ31 alloy due to its lower buffering p H value(x.x).Thus, both the hydrogen evolution rate and corrosion current density of the alloy were approximately one order of magnitude higher in presence of Tris-HCl than Tris and Tris-free saline solutions.Lan-Yue Cui Yan Hu Rong-Chang Zeng Yong-Xin Yang Dan-Dan Sun Shuo-Qi Li Fen Zhang En-Hou Han 2017Journal of Materials Science & Technology2017,33,9:12
19Effects of UV-A exposures on longevity and reproduction in Helicoverpa armigera, and on the development of its F1 generation显示文摘Helicoverpa armigera 成年人显示明显的积极趋光性的行为点亮刺激,并且对特别敏感紫外(紫外) 光。效果紫外 A (longwave ) 在 H 的成年长寿和复制上的暴露。armigera 被调查,以及 F1 产生的发展。配对的成年人暴露于为各种各样的时间时期(0, 1, 5 和 9 h/day )紫外 A,直到成年生活的结束。结果证明成年长寿与增加暴露时间减少了因为性,和重要减少为 5 和 9 h/day 在暴露以后被观察。当成年人们为 1 和 5 h/day 被暴露时,肥沃增加了,并且重要差别在 5 h/day 组被观察。在所有处理的女性的 Oviposition 率比在控制显著地高。暴露到为在 F1 不成熟的舞台的累积幸存引起衰落的更长的时期(5 和 9 h/day )紫外 A,却不重要差别在鸡蛋开口,化蛹和羽化被发现。F1 幼虫的发展时期显著地在暴露以后被延长到为 5 和 9 h/day 紫外 A。紫外 A 的放射没在 F1 蛹的时期上有重要效果。Chang-Yu Zhang Jian-Yu Meng Xiao-Ping Wang Fen Zhu Chao-Liang Lei 2011Insect Science2011,18,6:12
20Corrosion resistance of Zn-AI layered double hydroxide/ poly(lactic acid) composite coating on magnesium alloy AZ31显示文摘Rong-Chang ZENG Xiao-Ting LI Zhen-Guo LIU Fen ZHANG Shuo-Qi LI Hong-Zhi CUI 2015Frontiers of Materials Science2015,9,4:11
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