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12018 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
2Experimental and clinical study of influence of high-frequency electric surgical knives on healing of abdominal incision显示文摘瞄准:在腹壁切口愈合上学习高周波的电的外科的刀的影响。方法:240 只白鼠被划分成 10 (0 ) , 10 (2 ) , 10 (5 ) ,并且 10 (8 ) 组和腹部手术的老鼠模型被分别地使用电的外科的刀和普通口针劝诱。然后,他们分别地被给生理盐水和 0.2 mL 的皮下注射在 10 的集中(2 ) 的埃希氏杆菌属关口 i,葡萄球菌 aureus 和绿脓假单胞菌的量的混合, 10 (5 ) 并且 10 (8 ) 。根据动物实验,经历腹部手术(上面的类型 II ) 的 220 个病人随机被分配进跟随三个组之一:电热刀(EK, 93 个盒子) ,电凝法(EC, 55 个盒子) 并且控制(72 个盒子) 。高周波的电的外科的刀习惯于为在 EK 的血壅滞的腹的纸巾和电凝法组织的 dissect。普通口针和电凝法在 EC 组被使用。普通口针和系住的丝缝线在控制被使用。结果:在除了组 10 的所有组(0 ) ,电的外科的刀做的 incisional 创伤的感染率与普通口针比那显著地高。而且,在组有有效差量 10 (2 ) , 10 (5 ) ,并且 10 (8 )(P<0.05 ) ,然而并非(0 )(P>0.05 ) 在组, 10 在 EK 和 EC 之间组织。临床的研究显示出在控制组在 EK,在 EC 的 11 个盒子(16.36%) 和 2 个盒子(2.86%) 在 16 种情况(17.20%) 中愈合的一处推迟的创伤。在 EK 和控制之间的有效差量组织(chi2 = 8.57, P<0.01 ) ,并且在 EC 和控制组之间(chi2 = 5.66, P<0.05 ) 被观察,然而并非在 EK 和 EC 之间(chi2 = 0.017, P>0.05 ) 。结论:高周波的电的刀可以显著地推迟腹壁切口愈合。它的申请应该被最小化以便减少手术后的复杂并发症的可能性。Guang-Wei Ji Yuan-Zhi Wu Xu Wang Hua-Xiong Pan Ping Li Wan-Ying Du Zhi Qi An Huang Li-Wei Zhang Li Zhang Wen Chen Guang-Hua Liu Hui Xu Quan Li Ai-Hua Yuan Xiao-Ping He Guo-Hua Mei 2006World Journal of Gastroenterology2006,12,25:23
3The distribution rule and seepage effect of the fractures in the ultra-low permeability sandstone reservoir in east Gansu Province,Ordos Basin显示文摘To study the impact of the fractures on development in the ultra-low permeability sandstone reservoir of the Yangchang Formation of the Upper Triassic in the Ordos Basin,data on outcrops,cores,slices,well logging and experiments are utilized to analyze the cause of the formation of the fractures,their distribution rules and the control factors and discuss the seepage flow effect of the fractures. In the studied area developed chiefly high-angle tectonic fractures and horizontal bedding fractures,inter-granular fractures and grain boundary fractures as well. Grain boundary fractures and intragranular fractures serve as vital channels linking intragranular pores and intergranular solution pores in the reservoir matrix,thus providing a good connectivity between the pores in the ultra-low perme-ability sandstone reservoir. The formation of fractures and their distribution are influenced by such external and internal factors as the palaeo-tectonic stress field,the reservoir lithological character,the thickness of the rock layer and the anisotropy of a layer. The present-day stress field influences the preservative state of fractures and their seepage flow effect. Under the tec-tonic effect of both the Yanshan and Himalayan periods,in this region four sets of fractures are distributed,respectively assuming the NE-SW,NW-SE,nearly E-W and nearly S-N orientations,but,due to the effect of the rock anisotropy of the rock formation,in some part of it two groups of nearly orthogonal fractures are chiefly distributed. Under the effect of the present-day stress field,the fractures that assume the NE-SW direction have a good connectivity,big apertures,a high permeability and a minimum starting pressure,all of which are main advantages of the seepage fractures in this region. With the development of oilfields,the permeability of the fractures of dif-ferent directions will have a dynamic change.ZENG LianBo1,GAO ChunYu2,QI JiaFu1,WANG YongKang2,LI Liang2 & QU XueFeng2 1 State Key Laboratory of Petroleum Resource and Prospecting,China University of Petroleum,Beijing 102249,China 2 Changqing Oilfield Branch,PetroChina,Xi’an 163517,China 2008Science China Earth Sciences2008,51,S2:22
4Triptolide induces Sertoli cell apoptosis in mice via ROS/JNK-dependent activation of the mitochondrial pathway and inhibition of Nrf2-mediated antioxidant response显示文摘Triptolide (TP ) ,氧化 diterpene,举办许多有益的 pharmacodynamic 活动但是它的临床的应用程序由于严重阴囊的损害被限制。这研究试图描出在 vitro 并且在 vivo 的导致 TP 的阴囊的损害的分子的机制。TP (5-50000 nmol/L ) dose-dependently 减少了有在 24 h 的 669.5-269.45 nmol/L 的 IC 50 价值的 TM4 Sertoli 房间的生存能力。TP (125, 250,和 500 nmol/L ) dose-dependently 在 TM4 房间增加了 ROS, JNK 的 phosphorylation, mitochondrial 机能障碍和内在的 apoptosis 小径的激活的累积。这些过程被合作处理与抗氧化剂 N 乙酰半胱氨酸稀释(NAC, 1 mmol/L ) 。而且, TP 处理从细胞质禁止了 Nrf2 的 translocation 进原子核以及下游的基因 NAD (P) H quinone 的表示 oxidoreductase1 (NQO1 ) ,过氧化氢酶(猫) 和 hemeoxygenase 1 (HO-1 ) ,因此对氧化应力废除调停 Nrf2 的防卫机制。而且, Nrf2 击倒的 siRNA 显著地加强了 TM4 房间的导致 TP 的 apoptosis。从在 vitro 实验的上述结果进一步在 TP 的口头的管理以后在雄的老鼠被验证(30, 60,和 120 mg 吗?Yu WANG Su-han GUO Xue-jun SHANG Li-sha YU Jian-wei ZHU Ang ZHAO Yan-fen ZHOU Guo-hua AN Qi ZHANG BO MA 2018Acta Pharmacologica Sinica2018,39,2:22
5Detection of ULF electromagnetic emissions as a precursor to two earthquakes in China显示文摘The geomagnetic data recorded by Kashi and Jinghai observatories in China were analyzed with improved polarization method.We compared the result around 0.01 Hz which is thought to be useful to detect the ULF anomaly with the result around 0.1 Hz which was inferred from the earthquake depth according to the skin effect,and found that 0.1 Hz is more proper to detect the ULF anomaly for both earthquakes studied in this paper.Qi Li Peiyu Zhu Alimj an Mamatemin Xuegong Xu 2011Earthquake Science2011,24,6:16
6Chinese Hα Solar Explorer(CHASE)——a complementary space mission to the ASO-S显示文摘The Chinese HαSolar Explorer(CHASE)is designed to test a newly developed satellite platform and conduct solar observations.The scientific payload of the satellite is an Hαimaging spectrograph(HIS),which can,for the first time,acquire full-disk spectroscopic solar observations in the Hαwaveband.This paper briefly introduces CHASE/HIS including its scientific objectives,technical parameters,scientific application system,etc.The CHASE mission is scheduled to launch in 2021.It will complement the observations by on-orbit solar spacecraft(such as SDO,IRIS,STEREO and PSP),as well as future solar missions of the Solar Orbiter and Advanced Space-based Solar Observatory(ASO-S).Chuan Li Cheng Fang Zhen Li Ming-De Ding Peng-Fei Chen Zhe Chen Liang-Kui Lin Chang-Zheng Chen Chang-Ya Chen Hong-Jiang Tao Wei You Qi Hao Yu Dai Xin Cheng Yang Guo Jie Hong Min-Jie An Wei-Qiang Cheng Jian-Xin Chen Wei Wang Wei Zhang 2019Research in Astronomy and Astrophysics2019,19,11:12
7Distinct characteristics and new prognostic scoring system for Chinese patients with Waldenstr(o)m macroglobulinemia显示文摘Yi Shuhua Cui Rui Li Zengjun An Gang Qi Junyuan Zou Dehui Zhang Peihong Chen Huishu Wang Jianxiang Chang Hong Qiu Lugui 2014Chinese Medical Journal2014,,12:12
8Bi2WO6 quantum dot-intercalated ultrathin montmo- rillonite nanostructure and its enhanced photocatalytic performance显示文摘在电子洞再结合和水氧化之间的运动比赛是为切开材料的有效的太阳的水的发展的关键限制。在这研究,我们在场由构造量解决这挑战的一个解决方案设置点的 nanostructure。第一次,我们证明设置的 nanostructure 的夹层费用能显著地在光催化禁止电子洞再结合。为双性人<潜水艇class=“ a-plus-plus ”> 2 WO <潜水艇class=“ a-plus-plus ”> 6 个量点( QD )在 montmorillonite ( MMT )设置了 nanostructure 作为一个例子, photogenerated 费用搬运人的平均一生被构造设置的 nanostructure 从 3.06 s 增加到 18.8 s 。增加的一生显著地改进了双性人的 photocatalytic 表演 < 潜水艇 class= “ a-plus-plus ” > 2 WO < 潜水艇 class= “ a-plus-plus ” > 在太阳的水氧化和环境纯化的 6 。这个工作不仅提供一个方法生产设置 QD 的 ultrathin nanostructures 而且一条一般线路为太阳的燃料产生和环境纯化设计有效基于半导体的 photoconversion 材料。Songmei Sun Wenzhong Wang Dong Jiang Ling Zhang Xiaoman Li Yali Zheng Qi An 2014Nano Research2014,7,10:10
9Genetic regulation by non-coding RNAs显示文摘Large scale cDNA sequencing and genome tiling array studies have shown that around 50% of genomic DNA in humans is transcribed, of which 2% is translated into proteins and the remaining 98% is non-coding RNAs (ncRNAs). There is mounting evidence that these ncRNAs play critical roles in regulating DNA structure, RNA expression, protein translation and protein functions through multiple genetic mechanisms, and thus affect normal development of organisms at all levels. Today, we know very little about the regulatory mechanisms and functions of these ncRNAs, which is clearly essential knowledge for understanding the secret of life. To promote this emerging research subject of critical importance, in this paper we review (1) ncRNAs' past and present, (2) regulatory mechanisms and their functions, (3) experimental strategies for identifying novel ncRNAs, (4) experimental strategies for investigating their functions, and (5) methodologies and examples of the application of ncRNAs.QI Liwang, LI Xinmin, ZHANG Shougong & AN Daochang Laboratory of Cell Biology, Research Institute of Forestry, Chinese Academy of Forestry, Beijing 100091, China Functional Genomics Facility, Division of Biological Science, University of Chicago, Chicago 60637, USA China National Center for Biotechnology and Development, Ministry of Science and Technology, Beijing 100081, China 2006Science China(Life Sciences)2006,49,3:10
10Deep-learning-based phase control method for tiled aperture coherent beam combining systems显示文摘We incorporate deep learning(DL)into tiled aperture coherent beam combining(CBC)systems for the first time,to the best of our knowledge.By using a well-trained convolutional neural network DL model,which has been constructed at a non-focal-plane to avoid the data collision problem,the relative phase of each beamlet could be accurately estimated,and then the phase error in the CBC system could be compensated directly by a servo phase control system.The feasibility and extensibility of the phase control method have been demonstrated by simulating the coherent combining of different hexagonal arrays.This DL-based phase control method offers a new way of eliminating dynamic phase noise in tiled aperture CBC systems,and it could provide a valuable reference on alleviating the long-standing problem that the phase control bandwidth decreases as the number of array elements increases.Tianyue Hou Yi An Qi Chang Pengfei Ma Jun Li Dong Zhi Liangjin Huang Rongtao Su Jian Wu Yanxing Ma Pu Zhou 2019High Power Laser Science and Engineering2019,7,4:10
11Two New Flavonoid Glycosides from Chrysanthemum morifolium显示文摘Two new flavonoid glycosides were isolated from the flowering heads of Chrysanthemum morifolium. Their structures were determined to be luteolin 4’-methoxy-7- O-(6'-O-acetyl)-β-D-glucopyranoside (1) and acacetin 7-O-(3'-O-acetyl)-β-D-glucopyranoside (2) by means of 1H and 13C NMR spectroscopic analysis, including 2D NMR technique.Jian ZHANG An Wei DING You Bin LI Da Wei QIAN Jin Ao DUAN Zhi Qi YIN 2006Chinese Chemical Letters2006,17,8:10
12Improving the accuracy of image-based forest fire recognition and spatial positioning显示文摘Forest fires are frequent natural disasters.It is necessary to explore advanced means to monitor,recognize and locate forest fires so as to establish a scientific system for the early detection,real-time positioning and quick fighting of forest fires.This paper mainly expounds methods and algorithms for improving accuracy and removing uncertainty in image-based forest fire recognition and spatial positioning.Firstly,we discuss a method of forest fire recognition in visible-light imagery.There are four aspects to improve accuracy and remove uncertainty in fire recognition:(1)eliminating factors of interference such as road and sky with high brightness,red leaves,other colored objects and objects that are lit up at night,(2)excluding imaging for specific periods and azimuth angles for which interference phenomena repeatedly occur,(3)improving the thresholding method for determining the flame border in image processing by adjusting the threshold to the season,weather and region,and (4)integrating the visible-light image method with infrared image technology.Secondly,we examine infrared-image-based methods and approaches of improving the accuracy of forest fire recognition by combining the spectrum threshold with an object feature value such as the normalized difference vegetation index and excluding factors of disturbance such as interference signals,extreme weather and high-temperature animals.Thirdly,a method of visible analysis to enhance the accuracy of forest fire positioning is examined and realized;the method includes decreasing the visual angle,selecting central points,selecting the largest spots,and judging the selection of fire spots according to the central distance.Case studies are examined and the results are found to be satisfactory.JIANG LiLi 1,QI QingWen 1,ZHANG An 1,GUO ChaoHui 2 & CHENG Xi 1,3 1 Institute of Geographical Sciences and Natural Resources Research,Chinese Academy of Sciences,Beijing 100101,China 2 China Center for Resources Satellite Data and Applications,Beijing 100094,China 3Graduate University of Chinese Academy of Sciences,Beijing 100049,China 2010Science China(Technological Sciences)2010,53,S1:9
13A LysM Receptor Heteromer Mediates Perception of Arbuscular Mycorrhizal Symbiotic Signal in Rice显示文摘Symbiotic microorganisms improve nutrient uptake by plants.To initiate mutualistic symbiosis with arbus-cular mycorrhizal(AM)fungi,plants perceive Myc factors,including lipochitooligosaccharides(LCOs)and short-chain chitooligosaccharides(CO4/CO5),secreted by AM fungi.However,the molecular mechanism of Myc factor perception remains elusive.In this study,we identified a heteromer of LysM receptor-like kinases consisting of OsMYR1/OsLYK2 and OsCERK1 that mediates the perception of AM fungi in rice.CO4 directly binds to OsMYR1,promoting the dimerization and phosphorylation of this receptor complex.Compared with control plants,Osmyr1 and Oscerk1 mutant rice plants are less sensitive to Myc factors and show decreased AM colonization.We engineered transgenic rice by expressing chimeric receptors that respectively replaced the ectodomains of OsMYR1 and OsCERK1 with those from the homologous Nod factor receptors MtNFP and MtL YK3 of Medicago truncatula.Transgenic plants displayed increased cal-cium oscillations in response to Nod factors compared with control rice.Our study provides significant mechanistic insights into AM symbiotic signal perception in rice.Expression of chimeric Nod/Myc recep-tors achieves a potentially important step toward generating cereals that host nitrogen-fixing bacteria.Jiangman He Chi Zhang Huiling Dai Huan Liu Xiaowei Zhang Jun Yang Xi Chen Yayun Zhu Dapeng Wang Xiaofeng Qi Weichao Li Zhihui Wang Guoyong An Nan YU Zuhua He Yong-Fei Wang Youli Xiao Peng Zhang Ertao Wang 2019Molecular Plant2019,12,12:9
14Prevention and control of HIV/AIDS in China:lessons from the past three decades显示文摘In the past 37 years,human immunodeficiency virus/acquired immunodeficiency syndrome(HIV/AIDS)has undergone various major transmission routes in China,with the world most complex co-circulating HIV-1 subtypes,even the prevalence is still low.In response to the first epidemic outbreak of HIV in injecting drug users and the second one by illegal commercial blood collection,China issued the Anti-Drug Law and launched the Blood Donation Act and nationwide nucleic acid testing,which has avoided 98,232 to 211,200 estimated infections and almost ended the blood product-related infection.China has been providing free antiretroviral therapy(ART)since 2003,which covered>80%of the identified patients and achieved a viral suppression rate of 91%.To bend the curve of increasing the disease burden of HIV and finally end the epidemic,China should consider constraining HIV spread through sexual transmission,narrowing the gaps in identifying HIV cases,and the long-term effectiveness and safety of ART in the future.Jun-Jie Xu Meng-Jie Han Yong-Jun Jiang Hai-Bo Ding Xi Li Xiao-Xu Han Fan Lv Qing-Feng Chen Zi-Ning Zhang Hua-Lu Cui Wen-Qing Geng Jing Zhang Qi Wang Jing Kang Xiao-Lin Li Hong Sun Ya-Jing Fu Ming-Hui An Qing-Hai Hu Zhen-Xing Chu Ying-Jie Liu Hong Shang 2021Chinese Medical Journal2021,,23:9
15Impact of CYP3A4*1G Polymorphism on Fentanyl Analgesia Assessed by Analgesia Nociception Index in Chinese Patients Undergoing Hysteroscopy显示文摘Background:The clinical efficacy of fentanyl for pain control differs greatly across individuals.The purpose of this study was to investigate the impact of CYP3A4*1G polymorphism including wild-type homozygote (CYP3A4*1/*1,GG),mutant heterozygote (CYP3A4*1/*1G,GA),and mutant homozygote (CYP3A4*1G/*1G,AA)on fentanyl analgesia in Chinese patients undergoing hysteroscopy by the assessment of analgesia nociception index (ANI). Methods:A total of 200 gynecologic patients scheduled for elective hysteroscopy under general anesthesia at Peking University People's Hospital from May to December in 2017 were enrolled in this study.Venous blood was withdrawn for genotyping of CYP3A4*1G before operation.Fentanyl 1μg/kg was administered preoperatively followed by target-controlled infusion of propofol for induction and maintenance.Intraoperative analgesic efficacy of fentanyl was assessed by ANI monitoring at T0(entering room),T1(cervical dilation), T2(start of cervical aspiration),and T3(end of cervical aspiration)time points.The duration of propofol infusion and total dosage of propofol were recorded as well. Results:The patients were divided into three groups according to CYP3A4*1G polymorphism,including 143 in GG group,47in GA group, and 10 in AA group.There was no significant difference in clinical demographics among three groups.The frequency of CYP3A4*1G variant alleles accounted for 16.8%and the distribution of variant alleles was consistent with Hardy-Weinberg equilibrium.Using a multilevel model,ANI values at T1(63.81±19.61),T2(63.63±17.82),and T3(65.68±17.79)were significantly lower than that at T0 (77.16±12.93)in the study population (F =23.50,P <0.001),suggesting that higher levels of pain at T 1,T2,and T3 than T0.Patients with GG genotype showed significantly lower ANI than those with GA or AA genotypes during hysteroscopy under the same dose of fentanyl. Conclusion:CYP3A4*1G polymorphism associated with the analgesic efficacy of intraoperative fentanyl in the patients undergoing hysteroscopy under general anesthesia.Qi Yan Yi Su Lan Gao Nan Ding Hong-Ying Zhang Wen E Yue Wang Yi Feng Hai-Yan An 2018Chinese Medical Journal2018,,22:8
16Deep-learning-assisted, two-stage phase control method for high-power mode-programmable orbital angular momentum beam generation显示文摘High-power mode-programmable orbital angular momentum(OAM)beams have received substantial attention in recent years.They are widely used in optical communication,nonlinear frequency conversion,and laser processing.To overcome the power limitation of a single beam,coherent beam combining(CBC)of laser arrays is used.However,in specific CBC systems used to generate structured light with a complex wavefront,eliminating phase noise and realizing flexible phase modulation proved to be difficult challenges.In this paper,we propose and demonstrate a two-stage phase control method that can generate OAM beams with different topological charges from a CBC system.During the phase control process,the phase errors are preliminarily compensated by a deep-learning(DL)network,and further eliminated by an optimization algorithm.Moreover,by modulating the expected relative phase vector and cost function,all-electronic flexible programmable switching of the OAM mode is realized.Results indicate that the proposed method combines the characteristics of DL for undesired convergent phase avoidance and the advantages of the optimization algorithm for accuracy improvement,thereby ensuring the high mode purity of the generated OAM beams.This work could provide a valuable reference for future implementation of high-power,fast switchable structured light generation and manipulation.TIANYUE HOU YI AN QI CHANG PENGFEI MA JUN LI LIANGJIN HUANG DONG ZHI JIAN WU RONGTAO SU YANXING MA PU ZHOU 2020Photonics Research2020,8,5:8
17High Staphylococcus epidermidis Colonization and Impaired Permeability Barrier in Facial Seborrheic Dermatitis显示文摘Qian An Meng Sun Rui-Qun Qi Li Zhang Jin-Long Zhai Yu-Xiao Hong Bing Song Hong-Duo Chen Xing-Hua Gao 2017Chinese Medical Journal2017,,14:8
18Inhibition of growth and metastasis of triple-negative breast cancer targeted by Traditional Chinese Medicine Tubeimu in orthotopic mice models显示文摘Objective: Triple-negative breast cancer(TNBC) is highly invasive and metastatic, which is in urgent need of transformative therapeutics. Tubeimu(TBM), the rhizome of Bolbostemma paniculatum(Maxim.) Franquet, is one of the Chinese medicinal herbs used for breast diseases since the ancient times. The present study evaluated the efficacy, especially the anti-metastatic effects of the dichloromethane extract of Tubeimu(ETBM) on TNBC orthotopic mouse models and cell lines.Methods: We applied real-time imaging on florescent orthotopic TNBC mice model and tested cell migration and invasion abilities with MDA-MB-231 cell line. Digital gene expression sequencing was performed and Kyoto Encyclopedia of Genes and Genomes(KEGG) analysis applied to explore the pathways influenced by ETBM.Moreover, quantitative real-time polymerase chain reactions(q RT-PCR) and Western blot were delivered to confirm the gene expression changes.Results: ETBM exhibited noticeable control on tumor metastasis and growth of TNBC tumors with no obvious toxicity. In compliance with this, it also showed inhibition of cell migration and invasion in vitro. Its impact on the changed biological behavior in TNBC may be a result of decreased expression of integrin β1(ITGβ1), integrin β8(ITGβ8) and Rho GTPase activating protein 5(ARHGAP5), which disabled the focal adhesion pathway and caused change in cell morphology.Conclusions: This study reveals that ETBM has anti-metastatic effects on MDA-MB-231-GFP tumor and may lead to a new therapeutic agent for the integrative treatment of highly invasive TNBC.Jingxiao Wang Xinjie Yang Haibo Han Limin Wang Weiqian Bao Shanshan Wang Robert M.Hoffman Meng Yang Hui Qi Chao An Kaiwen Hu 2018Chinese Journal of Cancer Research2018,30,1:8
19Occurrence and infection risk of waterborne pathogens in Wanzhou watershed of the Three Gorges Reservoir, China显示文摘The Three Gorges Reservoir (TGR), formed by China's Yangtze Three Gorges Project, is the largest lake in the world, but there is too little information available about fecal contamination and waterborne pathogen impacts on this aquatic ecosystem. During two successive 1-year study periods (July 2009 to July 2011), the water quality in Wanzhou watershed of the TGR was tested with regard to the presence of fecal indicators and pathogens. According to Chinese and World Health Organization water quality standards, water quality in the mainstream was good but poor in backwater areas. Salmonella, Enterohemorrhagic Escherichia coli (EHEC), Giardia and Cryptosporidium were detected in the watershed. Prevalence and concentrations of the pathogens in the mainstream were lower than those in backwater areas. The estimated risk of infection with Salmonella, EHEC, Cryptosporidium, and Giardia per exposure event ranged from 2.9 × 10 -7 to 1.68 × 10-5 , 7.04 × 10-10 to 2.36 × 10-7 , 5.39 × 10-6 to 1.25 × 10-4 and 0 to 1.2 × 10-3 , respectively, for occupational divers and recreational swimmers exposed to the waters. The estimated risk of infection at exposure to the 95% upper confidence limit concentrations of Salmonella, Cryptosporidium and Giardia may be up to 2.62 × 10-5 , 2.55 × 10-4 and 2.86 × 10-3 , respectively. This study provides useful information for the residents, health care workers and managers to improve the safety of surface water and reduce the risk of fecal contamination in the TGR.Guosheng Xiao Zhaodan Wang Ji'an Chen Zhiqun Qiu Yanjie Li Junsheng Qi Wenyi Liu Weiqun Shu 2013Journal of Environmental Sciences2013,25,9:7
20Effectiveness of Inactivated COVID-19 Vaccines Against Symptomatic,Pneumonia,and Severe Disease Caused by the Delta Variant:Real World Study and Evidence—China,2021显示文摘Summary What is already known about this topic?Effectiveness of China’s 2 inactivated vaccines(BBIBPCorV and CoronaVac)against pre-Delta severe acute respiratory syndrome coronavirus-2(SARS-CoV-2)variants ranged from 47%to over 90%,depending on the clinical endpoint,and with greater effectiveness against more severe coronavirus disease 2019(COVID-19).During an outbreak in Guangdong,inactivated vaccine effectiveness(VE)against the Delta variant was 70%for symptomatic infection and 100%for severe COVID-19.However,separate or combined VE estimates for the two inactivated vaccines against Delta are not available.What is added by this report?In an outbreak that started in a hospital,VEs of completed primary vaccination with inactivated COVID-19 vaccines against symptomatic COVID-19,COVID-19 pneumonia,and severe COVID-19 caused by the Delta variant were 51%,61%,and 82%.Completed primary vaccination reduced the risk of progressing from mild to moderate or severe COVID-19 by 74%.VE estimates for BBIBP-CorV and CoronaVac or combined vaccination were similar,and partial vaccination was ineffective.What are the implications for public health practice?Completed primary vaccination with either of the 2 inactivated COVID-19 vaccines reduces risk of symptomatic COVID-19,COVID-19 pneumonia,and severe COVID-19 caused by the Delta variant.Completion of the completed primary vaccination with two doses is necessary for protection from Delta.Dan Wu Yanyang Zhang Lin Tang Fuzhen Wang Ying Ye Chao Ma Hui Zheng Wenzhou Yu Lei Cao Yifan Song Abuduwaili Reyimu Xiaoxiao Zhang Haifeng Wang Yifei Nie Mingxia Lu Muge Qi Jun Li Ruolin Wang Kaichao Yang Changshuang Wang Lawrence Everett Rodewald Geroge Fu Gao Zhijie An Zundong Yin 2022China CDC weekly2022,4,4:7
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