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| 1 | 2018 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 | 2018 | Science Bulletin2018,63,23: | 54 |
| 2 | Rho/ROCK pathway and neural regeneration: a potential therapeutic target for central nervous system and optic nerve damage显示文摘· Rho-associated kinase (ROCK) is a serine/threonine kinase and one of the major downstream effectors of the small GTPase RhoA. The Rho/ROCK pathway is closely related to the pathogenesis of several central nervous system (CNS) disorders, and involved in many aspects of neuronal functions including neurite outgrowth and retraction. In the adult CNS, the damaged neuron regeneration is very difficult due to the presence of myelin-associated axon growth inhibitors such as Nogo, myelin-associated glycoprotein (MAG) and oligodendrocyte-myelin glycoprotein (Omgp), etc. The effects of these axon growth inhibitors are reversed by blocking the Rho/ROCK pathway in vitro, and the inhibition of Rho/ROCK pathway can promote axon regeneration and functional recovery in the injured CNS in vivo. In addition, the therapeutic effects of the Rho/ROCK inhibitors have also been demonstrated in some animal models and the Rho/ROCK pathway becomes an attractive target for the development of drugs for treating CNS disorders. In this review, we summarized on the effect of the Rho and the downstream factor ROCK in neural regeneration, and the potential therapeutic effect of Rho/ROCK inhibitors in the survival and axonal regeneration of retinal ganglion cells was also discussed. · | Hai-Bo Tan Yi-Sheng Zhong Yu Cheng and Xi Shen | 2011 | International Journal of Ophthalmology(English edition)2011,4,6: | 31 |
| 3 | Precise nanomedicine for intelligent therapy of cancer显示文摘Precise nanomedicine has been extensively explored for efficient cancer imaging and targeted cancer therapy, as evidenced by a few breakthroughs in their preclinical and clinical explorations. Here, we demonstrate the recent advances of intelligent cancer nanomedicine, and discuss the comprehensive understanding of their structure-function relationship for smart and efficient cancer nanomedicine including various imaging and therapeutic applications, as well as nanotoxicity. In particular, a few emerging strategies that have advanced cancer nanomedicine are also highlighted as the emerging focus such as tumor imprisonment, supramolecular chemotherapy, and DNA nanorobot. The challenge and outlook of some scientific and engineering issues are also discussed in future development. We wish to highlight these new progress of precise nanomedicine with the ultimate goal to inspire more successful explorations of intelligent nanoparticles for future clinical translations. | Huabing Chen Zhanjun Gu Hongwei An Chunying Chen Jie Chen Ran Cui Siqin Chen Weihai Chen Xuesi Chen Xiaoyuan Chen Zhuo Chen Baoquan Ding Qian Dong Qin Fan Ting Fu Dayong Hou Qiao Jiang Hengte Ke Xiqun Jiang Gang Liu Suping Li Tianyu Li Zhuang Liu Guangjun Nie Muhammad Ovais Daiwen Pang Nasha Qiu Youqing Shen Huayu Tian Chao Wang Hao Wang Ziqi Wang Huaping Xu Jiang-Fei Xu Xiangliang Yang Shuang Zhu Xianchuang Zheng Xianzheng Zhang Yanbing Zhao Weihong Tan Xi Zhang Yuliang Zhao | 2018 | Science China Chemistry2018,61,12: | 19 |
| 4 | Targeting RNS/caveolin-1/MMP signaling cascades to protect against cerebral ischemia-reperfusion injuries: potential application for drug discovery显示文摘反应的氮种类(RNS ) 玩在调停的重要角色服的 ischemia-reperfusion 损害。RNS 激活多重发信号的小径并且在服的 ischemia-reperfusion 损害参予不同细胞的事件。最近的研究显示了 caveolin-1 和矩阵 metalloproteinase (MMP ) 是重要的在 ischemic 大脑损害的病理学的过程表明分子。在服的 ischemia-reperfusion 期间,氮的氧化物的生产(没有) 并且 peroxynitrite (ONOO ), 二代表性的 RNS,下面调整接着, caveolin-1 (Cav-1 ) 并且,的表示进一步激活氮的氧化物 synthase (NOS ) 支持 RNS 产生。增加的 RNS 进一步导致 MMP 激活并且调停血大脑障碍(BBB ) 的混乱,在服的 ischemia-reperfusion 损害加重大脑损坏。因此,在 RNS/Cav-1/MMPs 之中的反馈相互作用为在服的 ischemia-reperfusion 损害期间加重 ischemic 大脑损坏提供放大机制。指向 RNS/Cav-1/MMP 小径能是为免于服的 ischemia-reperfusion 损害的有希望的治疗学的策略。在这篇微型评论文章,我们加亮在寻求指向发信号的 RNS/Cav-1/MMP 的治疗学的混合物的研究的当前的进步串联稀释服的 ischemia-reperfusion 损害的 ischemic 击损害和评论表明串联的 RNS/Cav-1/MMP 的重要角色。几代表性的天赋加重,包括 calycosin-7-O --D 配糖物, baicalin, Momordica charantia 多糖(MCP ) , chlorogenic 酸,黄体素和 lycopene,为指向表明小径在 ischemic 保护大脑的 RNS/Cav-1/MMP 显示出潜力击。因此, RNS/Cav-1/MMP 小径是在 ischemic 中风治疗的一个重要治疗学的目标。 | Han-sen CHEN Xi CHEN Wen-ting LI Jian-gang SHEN | 2018 | Acta Pharmacologica Sinica2018,39,5: | 19 |
| 5 | Hypoxia-regulated microRNAs in human cancer显示文摘 | Guomin SHEN Xiaobo LI Yong-feng JIA Gary A PIAZZA Yaguang XI | 2013 | Acta Pharmacologica Sinica2013,34,3: | 18 |
| 6 | Suppression of m6A reader Ythdf2 promotes hematopoietic stem cell expansion显示文摘 | Zhenrui Li Pengxu Qian Wanqing Shao Hailing Shi Xi C. He Madelaine Gogol Zulin Yu Yongfu Wang Meijie Qi Yunfei Zhu John M. Perry Kai Zhang Fang Tao Kun Zhou Deqing Hu Yingli Han Chongbei Zhao Richard Alexander Hanzhang Xu Shiyuan Chen Allison Peak Kathyrn Hall Michael Peterson Anoja Perera Jeffrey S. Haug Tari Parmely Hua Li Bin Shen Julia Zeitlinger Chuan He Linheng Li | 2018 | Cell Research2018,28,9: | 18 |
| 7 | Predictive and prognostic value of serum AFP level and its dynamic changes in advanced gastric cancer patients with elevated serum AFP显示文摘AIM To investigate predictive and prognostic value of serum alpha-fetoprotein(AFP) level and its dynamic changes in patients with advanced gastric cancer with elevated serum AFP(AFPAGC).METHODS One hundred and five patients with AFPAGC were enrolled in the study, and all of them underwent at least one cycle of systemic chemotherapy at our institute and had serum AFP ≥ 20 ng/m L at diagnosis or recurrence. Clinicopathologic features, serum AFP level at diagnosis and changes during treatment, first-line chemotherapy regimens, efficacy and toxicity, and survival information were collected. A Person's χ~2 or Fisher's exact test was used to measure the differences between variables. Survival prognostic factors were investigated using the Kaplan-Meier method and Cox regression.RESULTS Median serum AFP level was 161.7 ng/m L(range, 22.9-2557110 ng/m L). Objective response rates(ORR) was significantly lower in the AFP ≥ 160 ng/m L group than in the AFP < 160 ng/m L group(30.4% vs 68.3%, P < 0.001). ORR to doublet regimens was significantly lower in the AFP ≥ 160 ng/m L group, whereas ORR to triplet regimens was similar between the two groups. Liver metastasis rate was significantly higher in the AFP ≥ 160 ng/m L group than in the AFP < 160 ng/m L(69.8% vs 50.0%, P < 0.001). Overall survival(OS) in the two cohorts did not show any significant difference(P = 0.712). Dynamic changes of AFP were consistent with response to chemotherapy, and median OS of patients with a serum AFP decline ≥ 50% and those with a serum AFP decline < 50% was 17.5 m and 10.0 m, respectively(P = 0.003). Hepatic(P = 0.005), peritoneal(P < 0.001), non-regional lymph node metastasis(P < 0.001), and portal vein tumor thrombus(PVTT)(P = 0.042) were identified as independent prognostic factors for AFPAGC. CONCLUSION Real-time examination of AFP has great predictive and prognostic value for managing AFPAGC. For those with markedly elevated AFP, triplet regimens may be a better choice. | Ya-Kun Wang Lin Shen Xi Jiao Xiao-Tian Zhang | 2018 | World Journal of Gastroenterology2018,24,2: | 17 |
| 8 | Effects of Xinfeng capsule on pulmonary function based on treg-mediated notch pathway in a rat model of adjuvant arthritis显示文摘OBJECTIVE:To observe the impact of xinfeng xapsule(XFC) on pulmonary function in a rat model of adjuvant arthritis(AA) and to investigate the mechanism of action.METHODS:Forty rats were randomly divided into four groups of ten:normal control(NC);model control(MC);tripterygium glycosides tablet(TPT);and xinfeng capsule(XFC).Except for the NC group,AA was induced in all rats by intracutaneous injection of 0.1 mL Freund's complete adjuvant in the right paw on the 19th day.NC and MC groups were given(0.9%) physiological saline.The TPT and XFC groups were given TPT(10 mg/kg) and XFC(1.2 g/kg),respectively.Thirty days after administration,changes in paw edema(E),the arthritis index(AI),pulmonary function,levels of regulatory T-cells(Treg),ultrastructure of lung tissue,and expression of Notch receptors and ligands in lung tissue were observed.RESULTS:In the MC group,E and the AI were increased and pulmonary function significantly decreased;the structure of alveolar type-II cells was damaged;ratios of Treg in peripheral blood were reduced;and expression of Notch receptors such as Notch3 and Notch4 and ligands such as Delta1 in lung tissue were significantly increased whereas expression of Notch1,Jagged1 and Jagged2 were significantly decreased.After intervention with XFC,E and the AI were decreased;pulmonary function was enhanced;the structure of alveolar type-II cells was improved;and expression of Treg,Notch1,Jagged1,Jagged2 was elevated,whereas that of Notch3,Notch4 and Delta1 was reduced.CONCLUSION:XFC can not only inhibit E and the AI and improve joint symptoms,it can also improve pulmonary function and reduce inflammation in lung tissue.These actions could be carried out through increases in the expression of Treg,Notch receptors(Notch1) and ligands(Jagged1,Jagged2),and reductions in the expression of Notch3,Notch4 and Delta1.These phenomena would reduce the deposition of immune complexes and the inflammatory response in lung tissue,thereby improving joint symptoms and pulmonary function. | Lei Wan Jian Liu Chuanbing Huang Yuan Wang Xi Shen Wandong Zhang Guizheng Wang Haixia Fan Yao Ge Ruilian Chen Yunxiang Cao Ruikai Zong Li Lei | 2012 | Journal of Traditional Chinese Medicine2012,32,3: | 17 |
| 9 | Comparison of Therapeutic Efficacy between Gastrectomy with Transarterial Chemoembolization Plus Systemic Chemotherapy and Systemic Chemotherapy Alone in Gastric Cancer with Synchronous Liver Metastasis显示文摘 | Sen-Feng Liu Can-Rong Lu Hai-Dong Cheng Hong-Qing Xi Jian-Xin Cui Ji-Yang Li Wei-Song Shen Lin Chen | 2015 | Chinese Medical Journal2015,,16: | 17 |
| 10 | Involvement of carbon monoxide produced by heme oxygenase in ABA-induced stomatal closure in Vicia faba and its proposed signal transduction pathway显示文摘Carbon monoxide (CO) has recently proven to be an important bioactive or signaling molecule in mammalian cells. Its effects are mainly mediated by nitric oxide (NO) and cyclic GMP (cGMP). In Vicia faba leaves, CO production and heme oxygenase (HO) activity, an important CO synthetic enzyme, are first reported to increase in response to ABA treatment, which could result in stomatal closure. Inter- estingly, ABA-induced stomatal closure in V. faba guard cells is partially blocked when the synthetic CO inhibitor ZnPP, or the CO/NO scavenger Hb is added. Furthermore, we show that, exogenously applied CO donor, hematin, and CO aqueous solution not only result in the enhancement of CO release, but also time-dependently induce stomatal closure, and the latter is mimicked by the application of an NO donor SNP. The above-mentioned stomatal closure effects are differentially reversed by the addition of tungstate, a potent inhibitor of NO synthetic enzyme nitrate reductase (NR), the specific NO scavenger cPTIO, ZnPP, or Hb. During treatment for 4 h, SNP, 0.01% CO aqueous solution or hematin significantly triggers NO synthesis, whereas cPTIO, or tungstate approximately fully inhibits NO fluorescence. Ad- ditionally, application of the GC inhibitor ODQ blocks CO-induced stomatal closure. This inhibition could be reversed when 8-Br-cGMP is added. Thus, the above results suggest that CO produced by HO is involved in ABA-induced stomatal closure, and NO and cGMP may function as downstream interme- diates in the CO signaling responsible for stomatal closure. | CAO ZeYu HUANG BenKai WANG QingYa XUAN Wei LING TengFang ZHANG Bo CHEN Xi NIE Li SHEN WenBiaot | 2007 | Chinese Science Bulletin2007,52,17: | 16 |
| 11 | Two Comparable Earthquakes Produced Greatly Different Coseismic Landslides:The 2015 Gorkha,Nepal and 2008 Wenchuan,China Events显示文摘The 2015 Gorkha Earthquake in Nepal and the 2008 Wenchuan Earthquake in China occurred at the south and southeast margins of the Tibetan Plateau, respectively. Both earthquakes had similar magnitudes of Mw 7.8 and 7.9, caused catastrophic loss of life and damage to property, and generated tens of thousands of landslides. Comparisons of pre- and post-quake satellite images supported by field investigations show that the Gorkha Earthquake triggered at least 2 064 large landslides(defined as covering an area ≥10 000 m^2) over a ~35 600 km^2 region with a volume of(444–584)×10~6(average 509×10~6) m^3 and total area of 44.78×10~6 m^2. In contrast, the Wenchuan Earthquake triggered 25 580 large landslides over a region of ~44 000 km^2 with a volume of(7 128–9 479)×10~6(average 8 219×10~6) m^3 and a total area of about 670.65×10~6 m^2. Several controlling factors including topographic relief, slope steepness, and regional peak ground acceleration(PGA) were investigated to try to explain the great differences between the number, volume and area of the coseismic landslides associated with the two similar earthquakes. We found that the differences primarily arose from an unexpected factor, the dip angle of the seismogenic fault. This discovery should aid understanding the failure mechanisms of quake-triggered landslides, and suggests that more factors should be taken into consideration in estimating coseismic landslide volumes from earthquake magnitudes. | Chong Xu Xiwei Xu Yingying Tian Lingling Shen Qi Yao Xueqiang Huang Junxue Ma Xi Chen Siyuan Ma | 2016 | Journal of Earth Science2016,27,6: | 14 |
| 12 | Long-term phosphorus accumulation and agronomic and environmtal critical phosphorus levels in Haplic Luvisol soil, northern China显示文摘Sufficient soil phosphorus(P) content is essential for achieving optimal crop yields,but accumulation of P in the soil due to excessive P applications can cause a risk of P loss and contribute to eutrophication of surface waters.Determination of a critical soil P value is fundamental for making appropriate P fertilization recommendations to ensure safety of both environment and crop production.In this study,agronomic and environmental critical P levels were determined by using linear-linear and linear-plateau models,and two segment linear model,for a maize(Zea mays L.)-winter wheat(Triticum aestivum L.) rotation system based on a 22-yr field experiment on a Haplic Luvisol soil in northern China.This study included six treatments:control(unfertilized),no P(NoP),application of mineral P fertilizer(MinP),MinP plus return of maize straw(MinP+StrP),MinP plus low rate of farmyard swine manure(MinP+L.Man) and MinP plus high rate of manure(MinP+H.Man).Based on the two models,the mean agronomic critical levels of soil Olsen-P for optimal maize and wheat yields were 12.3 and 12.8 mg kg^(-1),respectively.The environmental critical P value as an indicator for P leaching was 30.6 mg Olsen-P kg^(-1),which was 2.4 times higher than the agronomic critical P value(on average 12.5 mg P kg^(-1)).It was calculated that soil Olsen-P content would reach the environmental critical P value in 41 years in the MinP treatment,but in only 5-6years in the two manure treatments.Application of manure could significantly raise soil Olsen-P content and cause an obvious risk of P leaching.In conclusion,the threshold range of soil Olsen-P is from 12.5 to 30.6 mg P kg^(-1) to optimize crop yields and meanwhile maintain relatively low risk of P leaching in Haplic Luvisol soil,northern China. | XI Bin ZHAI Li-mei LIU Jian LIU Shen WANG Hong-yuan LUO Chun-yan REN Tian-zhi LIU Hong-bin | 2016 | Journal of Integrative Agriculture2016,15,1: | 13 |
| 13 | Variational principles and governing equations in nano-dielectrics with the flexoelectric effect显示文摘The flexoelectric effect is very strong and coupled with large strain gradients for nanoscale dielectrics. At the nanoscale, the electrostatic force cannot be ignored. In this paper, we have established the electric enthalpy variational principle for nanosized dielectrics with the strain gradient and the polarization gradient effect, as well as the effect of the electrostatic force. The complete governing equations, which include the effect of the electrostatic force, are derived from this variational principle, and based on the principle the generalized electrostatic stress is obtained, the generalized electrostatic stress contains the Maxwell stress corresponding to the polarization and strain, and stress related to the polarization gradient and strain gradient. This work provides the basis for the analysis and computations for the electromechanical problems in nanosized dielectric materials. | HU ShuLing & SHEN ShengPing* MOE Key Laboratory for Strength and Vibration, School of Aerospace, Xi’an Jiaotong University, Xi’an 710049, China | 2010 | Science China(Physics,Mechanics & Astronomy)2010,53,8: | 11 |
| 14 | Comparative investigation on high-speed grinding of TiCp/Ti–6Al–4V particulate reinforced titanium matrix composites with single-layer electroplated and brazed CBN wheels显示文摘In order to develop the high-efficiency and precision machining technique of Ti Cp/Ti–6Al–4V particulate reinforced titanium matrix composites(PTMCs), high-speed grinding experiments were conducted using the single-layer electroplated cubic boron nitride(CBN) wheel and brazed CBN wheel, respectively. The comparative grinding performance was studied in terms of grinding force, grinding temperature, grinding-induced surface features and defects. The results display that the grinding forces and grinding temperature obtained with the brazed CBN wheel are always lower than those with the electroplated CBN wheel. Though the voids and microcracks are the dominant grinding-induced surface defects, the brazed CBN wheel produces less surface defects compared to the electroplated wheel according to the statistical analysis results. The maximum materials removal rate with the brazed CBN wheel is much higher than that with the electroplated one. All above indicate that the single-layer brazed CBN super-abrasive wheel is more suitable for high-speed grinding of PTMCs than the electroplated counterpart. | Li Zheng Ding Wenfeng Shen Long Xi Xinxin Fu Yucan | 2016 | Chinese Journal of Aeronautics2016,29,5: | 11 |
| 15 | Environmental characteristics of Mid-Holocene recorded by lacustrine sediments from Lake Daihai, north environment sensitive zone, China显示文摘Climate proxies, such as total organic carbon and nitrogen (TOC, TN), carbonate content (CaCO3), grain-size and pollen of the sediment core retrieved from enclosed Lake Daihai which lies in the north China environment sensitive zone are analyzed to reconstruct the environment evolution of the area based on high-resolution radiocarbon chronology. The results reveal that the TOC and TN contents of the sediments correlate well with pollen percentage and pollen flux variations during the Holocene, and both reach their peak values simultaneously at 6.7―3.5 ka BP (calendar age, 7.6―3.6 ka BP). Since 6.7 ka BP, both the CaCO3 and organic matter contents of the core have simultaneous variations, and their high values also occur during 6.7―3.5 ka BP. While during 9.0―6.7 ka BP (calendar age, 10―7.6 ka BP) relatively lower level of organic matter content and pollen flux corre- spond to the higher level of carbonate content. The above relations suggest that during 6.7―3.5 ka BP, the productivity and effective precipitation were greatly improved in the lake drainage area, and this would probably strengthen the hydrodynamic conditions, enhancing organic matter, pollen and carbonate inputs from terrestrial sources. Such processes would account for the enrichment of both organic matter and carbonate in the sediments. While during 9.0―6.7 ka BP, the lower level of or- ganic matter, pollen flux but high carbonate content show depressed productivity and declined vege- tation coverage. The higher carbonate content at this stage would have probably resulted from the higher evaporation ratio of the lake water under relatively drier climate conditions. Therefore, it is in- ferred that during 6.7―3.5 ka BP, the climate was more humid with abundant rainfalls and vegetation was more flourishing in the Lake Daihai area. This can be seen as Holocene Climate Optimum (HCO). As a result, this has evident discrepancies with the traditional notion that the HCO occurs at Early Holocene or early Mid-Holocene. | SUN Qianli1,2, ZHOU Jie1, SHEN Ji3, CHEN Peng1,2, WU Feng1,2 & XIE Xiuping1,2 1. State Key Lab of Loess and Quaternary Geology, Institute of Earth Environment, Chinese Academy of Sciences, Xi’an 710075, China 2. Graduate University of Chinese Academy of Sciences, Beijing 100039, China 3. Nanjing Institute of Geography and Limnology, Chinese Academy of Sciences, Nanjing 210008, China | 2006 | Science China Earth Sciences2006,49,9: | 11 |
| 16 | First-in-man Implantation of the XINSORB Bioresorbable Sirolimus-eluting Scaffold in China显示文摘To the Editor:A 35-year-old man who smoked for 15 years suffered from chest pain 12 days ago before admission.He was diagnosed as myocardial infarction.Thrombolytic therapy was given consequently.The electrocardiogram showed sub-acute inferior wall myocardial infarction.Echocardiogram showed attenuated constriction of the inferior wall with an ejection fraction of 59%.On September 5,2013,he was treated with a XINSORB scaffold in right coronary artery (RCA). | Jia-Hui Chen Yi-Zhe Wu Li Shen Feng Zhang Zhi-Feng Yao Jia-Sheng Yin Meng Ji Qi-Bing Wang Lei Ge Ju-Ying Qian Xi Hu Jian Xie Jun-Bo Ge | 2015 | Chinese Medical Journal2015,,9: | 10 |
| 17 | Is urban development an urban river killer? A case study of Yongding Diversion Channel in Beijing, China显示文摘The high population and concrete environment alter urban areas by changing temperature, rainfall runoff, and water resource utilization activities. This study was conducted to investigate the water quality features of the Yongding Diversion Channel in Beijing, China, and its relationship with rainfall and urban development. Monthly water quality data were obtained from April to October of 2004 at monitoring sites of Sanjiadian, Gaojing, Luodaozhuang, and Yuyuangtan. The monthly water quality grades from 2007 to 2011 were also investigated and compared with those of other rivers. Dissolved oxygen and pH showed greater decreases after one or two moderate rainfall events than several light rainfall events. The potassium permanganate index(CODMn), ammonia nitrogen(NH3-N) and total phosphorus(TP) increased more after several light rainfall events than after one or two moderate or heavy rainfall events. Pollutant concentrations(CODMn, NH3-N, TP) in downstream regions showed greater changes than those in upstream areas after heavy rainfall events. Intense human activities around the channel greatly influenced the water quality of the channel in rainy season because of runoff pollution; however, heavy rainfall had a strong dilution effect on the pollutant concentrations in rivers. Overall, urban development has obviously deteriorated the water quality of the Yongding Diversion Channel as indicated by an increase in the water quality index from 3.22 in 2008 to 4.55 in2010. The Pearson correlation between monthly rainfall and water quality indices from 2007 to 2011ranged from 0.1286 to 0.6968, generally becoming weaker as rainfall and rainfall runoff became more random and extreme. | Xi Wang Junqi Li Yingxia Li Zhenyao Shen Xuan Wang Zhifeng Yang Inchio Lou | 2014 | Journal of Environmental Sciences2014,26,6: | 8 |
| 18 | Endometrial MicroRNA Signature during the Window of Implantation Changed in Patients with Repeated Implantation Failure显示文摘 | Cheng Shi Huan Shen Li-Juan Fan Jing Guan Xin-Bang Zheng Xi Chen Rong Liang Xiao-Wei Zhang Qing-Hua Cui Kun-Kun Sun Zhu-Ran Zhao Hong-Jing Han | 2017 | Chinese Medical Journal2017,,5: | 8 |
| 19 | Astaxanthin promotes M2 macrophages and attenuates cardiac remodeling after myocardial infarction by suppression inflammation in rats显示文摘Background:Cardiac remodeling after acute myocardial infarction(AMI)is an important process.The present study aimed to assess the protective effects of astaxanthin(ASX)on cardiac remodeling after AMI.Methods:The study was conducted between April and September 2018.To create a rat AMI model,rats were anesthetized,and the left anterior descending coronary artery was ligated.The rats in the ASX group received 10 mg·kg-1·day-1 ASX by gavage for 28 days.On the 1st day after AMI,but before ASX administration,six rats from each group were sacrificed to evaluate changes in the heart function and peripheral blood(PB)levels of inflammatory factors.On the 7th day after AMI,eight rats from each group were sacrificed to evaluate the PB levels of inflammatory factors and the M2 macrophage count using both immunofluorescence(IF)and flow cytometry(FC).The remaining rats were observed for 28 days.Cardiac function was examined using echocardiography.The inflammatory factors,namely,tumor necrosis factor-α(TNF-α),interleukin-1β(IL-1β),and IL-10,were assessed using enzyme-linked immunosorbent assay.The heart weight/body weight(BW),and lung weight(LW)/BW ratios were calculated,and myocardial fibrosis in the form of collagen volume fraction was measured using Masson trichrome staining.Hematoxylin and eosin(H&E)staining was used to determine the myocardial infarct size(MIS),and TdT-mediated dUTP nick-end labeling staining was used to analyze the myocardial apoptosis index.The levels of apoptosis-related protein,type I/III collagen,transforming growth factorβ1(TGF-β1),metalloproteinase 9(MMP9),and caspase 3 were assessed by Western blotting.Unpaired t-test,one-way analysis of variance,and non-parametric Mann-Whitney test were used to analyze the data.Results:On day 1,cardiac function was worse in the ASX group than in the sham group(left ventricular end-systolic diameter[LVIDs]:0.72±0.08 vs.0.22±0.06 cm,t=-11.38;left ventricular end-diastolic diameter[LVIDd]:0.89±0.09 vs.0.48±0.05 cm,t=-9.42;end-systolic volume[ESV]:0.80[0.62,0.94]vs.0.04[0.03,0.05]mL,Z=-2.89;end-diastolic volume[EDV]:1.39[1.03,1.49]vs.0.28[0.22,0.32]mL,Z=-2.88;ejection fraction[EF]:0.40±0.04 vs.0.86±0.05,t=10.00;left ventricular fractional shortening[FS]rate:0.19[0.18,0.20]%FS vs.0.51[0.44,0.58]%FS,Z=-2.88,all P<0.01;n=6).The levels of inflammatory factors significantly increased(TNF-α:197.60[133.89,237.94]vs.50.48[47.2157.10]pg/mL,Z=-2.88;IL-1β:175.23[160.74,215.09]vs.17.78[16.83,19.56]pg/mL,Z=-2.88;IL-10:67.64[58.90,71.46]vs.12.33[11.64,13.98]pg/mL,Z=-2.88,all P<0.01;n=6).On day 7,the levels of TNF-αand IL-1βwere markedly lower in the ASX group than in the AMI group(TNF-α:71.70[68.60,76.00]vs.118.07[106.92,169.08]pg/mL,F=42.64;IL-1β:59.90[50.83,73.78]vs.151.60[108.4,198.36]pg/mL,F=44.35,all P<0.01,n=8).Conversely,IL-10 levels significantly increased(141.84[118.98,158.36]vs.52.96[42.68,74.52]pg/mL,F=126.67,P<0.01,n=8).The M2 macrophage count significantly increased(2891.42±211.29 vs.1583.38±162.22,F=274.35,P<0.01 by immunofluorescence test;0.96±0.18 vs.0.36±0.05,F=46.24,P<0.05 by flowcytometry test).On day 28,cardiac function was better in the ASX group than in the AMI group(LVIDs:0.50[0.41,0.56]vs.0.64[0.56,0.74]cm,Z=-3.60;LVIDd:0.70[0.60,0.76]vs.0.80[0.740.88]cm,Z=-2.96;ESV:0.24[0.18,0.45]vs.0.58[0.44,0.89]mL,Z=-3.62;EDV:0.76[0.44,1.04]vs.1.25[0.82,1.46]mL,Z=-2.54;EF:0.60±0.08 vs.0.50±0.12,F=160.48;%FS:0.29[0.24,0.31]vs.0.20[0.17,0.21],Z=-4.43,all P<0.01;n=16).The MIS and LW/BW ratio were markedly lower in the ASX group than in the AMI group(myocardial infarct size:32.50±1.37 vs.50.90±1.73,t=23.63,P<0.01,n=8;LW/BW:1.81±0.15 vs.2.17±0.37,t=3.66,P=0.01,n=16).The CVF was significantly lower in the ASX group than in the AMI group:12.88±2.53 vs.28.92±3.31,t=10.89,P<0.01,n=8.The expression of caspase 3,TGF-β1,MMP9,and type I/III collagen was lower in the ASX group than in the AMI group(caspase 3:0.38±0.06 vs.0.66±0.04,t=8.28;TGF-β1:0.37±0.04 vs.0.62±0.07,t=6.39;MMP9:0.20±0.06 vs.0.40±0.06,t=4.62;type I collagen:0.42±0.09 vs.0.74±0.07,t=5.73;type III collagen:0.13±0.02 vs.0.74±0.07,t=4.32,all P<0.01;n=4).Conclusions:ASX treatment after AMI may promote M2 macrophages and effectively attenuate cardiac remodeling by inhibiting inflammation and reducing myocardial fibrosis. | Xia Pan Kai Zhang Cheng Shen Xi Wang Long Wang Ya-Yi Huang | 2020 | Chinese Medical Journal2020,,15: | 8 |
| 20 | Characterization of the essential role of bone morphogenetic protein 9 (BMP9) in osteogenic differentiation of mesenchymal stem cells (MSCs) through RNA interference显示文摘Mesenchymal stem cells(MSCs)are multipotent stem cells and capable of differentiating into multiple cell types including osteoblastic,chondrogenic and adipogenic lineages.We previously identified BMP9 as one of the most potent BMPs that induce osteoblastic differentiation of MSCs although exact molecular mechanism through which BMP9 regulates osteogenic differentiation remains to be fully understood.Here,we seek to develop a recombinant adenovirus system to optimally silence mouse BMP9 and then characterize the important role of BMP9 in osteogenic differentiation of MSCs.Using two different siRNA bioinformatic prediction programs,we design five siRNAs targeting mouse BMP9(or simB9),which are expressed under the control of the converging H1 and U6 promoters in recombinant adenovirus vectors.We demonstrate that two of the five siRNAs,simB9-4 and simB9-7,exhibit the highest efficiency on silencing exogenous mouse BMP9 in MSCs.Furthermore,simB9-4 and simB9-7 act synergistically in inhibiting BMP9-induced expression of osteogenic markers,matrix mineralization and ectopic bone formation from MSCs.Thus,our findings demonstrate the important role of BMP9 in osteogenic differentiation of MSCs.The characterized simB9 siRNAs may be used as an important tool to investigate the molecular mechanism behind BMP9 osteogenic signaling.Our results also indicate that recombinant adenovirus-mediated expression of siRNAs is efficient and sustained,and thus may be used as an effective delivery vehicle of siRNA therapeutics. | Shujuan Yan Ruyi Zhang Ke Wu Jing Cui Shifeng Huang Xiaojuan Ji Liping An Chengfu Yuan Cheng Gong Linghuan Zhang Wei Liu Yixiao Feng Bo Zhang Zhengyu Dai Yi Shen Xi Wang Wenping Luo Bo Liu Rex C.Haydon Michael J.Lee Russell R.Reid Jennifer Moriatis Wolf Qiong Shi Hue H.Luu Tong-Chuan He Yaguang Weng | 2018 | Genes & Diseases2018,5,2: | 8 |