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| 1 | Clinical and biochemical indexes from 2019-nCoV infected patients linked to viral loads and lung injury显示文摘The outbreak of the 2019-nCoV infection began in December 2019 in Wuhan,Hubei province,and rapidly spread to many provinces in China as well as other countries.Here we report the epidemiological,clinical,laboratory,and radiological characteristics,as well as potential biomarkers for predicting disease severity in 2019-nCoV-infected patients in Shenzhen,China.All 12 cases of the 2019-nCoV-infected patients developed pneumonia and half of them developed acute respiratory distress syndrome (ARDS).The most common laboratory abnormalities were hypoalbuminemia,lymphopenia,decreased percentage of lymphocytes (LYM) and neutrophils (NEU),elevated C-reactive protein (CRP) and lactate dehydrogenase (LDH),and decreased CD8 count.The viral load of 2019-nCoV detected from patient respiratory tracts was positively linked to lung disease severity.ALB,LYM,LYM (%),LDH,NEU (%),and CRP were highly correlated to the acute lung injury.Age,viral load,lung injury score,and blood biochemistry indexes,albumin (ALB),CRP,LDH,LYM (%),LYM,and NEU (%),may be predictors of disease severity.Moreover,the Angiotensin Ⅱlevel in the plasma sample from 2019-nCoV infected patients was markedly elevated and linearly associated to viral load and lung injury.Our results suggest a number of potential diagnosis biomarkers and angiotensin receptor blocker (ARB) drugs for potential repurposing treatment of 2019-nCoV infection. | Yingxia Liu Yang Yang Cong Zhang Fengming Huang Fuxiang Wang Jing Yuan Zhaoqin Wang Jinxiu Li Jianming Li Cheng Feng Zheng Zhang Lifei Wang Ling Peng Li Chen Yuhao Qin Dandan Zhao Shuguang Tan Lu Yin Jun Xu Congzhao Zhou Chengyu Jiang Lei Liu | 2020 | Science China(Life Sciences)2020,63,3: | 157 |
| 2 | A complete sequence and comparative analysis of a SARS-associated virus(Isolate BJ01)显示文摘The genome sequence of the Severe Acute Respiratory Syndrome (SARS)-associated virus provides essential information for the identification of pathogen(s), exploration of etiology and evolution, interpretation of transmission and pathogenesis, development of diagnostics, prevention by future vaccination, and treatment by developing new drugs. We report the complete genome sequence and comparative analysis of an isolate (BJ01) of the coronavirus that has been recognized as a pathogen for SARS. The genome is 29725 nt in size and has 11 ORFs (Open Reading Frames). It is composed of a stable region encoding an RNA-dependent RNA polymerase (composed of 2 ORFs) and a variable region representing 4 CDSs (coding sequences) for viral structural genes (the S, E, M, N proteins) and 5 PUPs (putative uncharacterized proteins). Its gene order is identical to that of other known coronaviruses. The sequence alignment with all known RNA viruses places this virus as a member in the family of Coronaviridae. Thirty putative substitutions have been identified by comparative analysis of the 5 SARS- associated virus genome sequences in GenBank. Fifteen of them lead to possible amino acid changes (non-synonymous mutations) in the proteins. Three amino acid changes, with predicted alteration of physical and chemical features, have been detected in the S protein that is postulated to beinvolved in the immunoreactions between the virus and its host. Two amino acid changes have been detected in the Mprotein, which could be related to viral envelope formation. Phylogenetic analysis suggests the possibility of non-human origin of the SARS-associated viruses but provides noevidence that they are man-made. Further efforts should focus on identifying the etiology of the SARS-associated virus and ruling out conclusively the existence of otherpossible SARS-related pathogen(s). | QIN E'de ZHU Qingyu YU Man FAN Baochang CHANG Guohui SI Bingyin YANG Bao PENG Wenming JIANG Tao LIU Bohua DENG Yongqiang LIU Hong ZHANG Yu WANG Cui LI Yuquan GAN Yonghua LI Xiaoyu L Fushuang TAN Gang CAO Wuchun, YANG Ruifu Institute of Microbiology and Epidemiology, Chinese Academy of Military Medical Sciences, Beijing 100071, China WANG Jian, LI Wei, XU Zuyuan, LI Yan, WU Qingfa, LIN Wei, CHEN Weijun, TANG Lin, DENG Yajun, HAN Yujun, LI Changfeng, LEI Meng, LI Guoqing, LI Wenjie, L Hong, SHI Jianping, TONG Zongzhong, ZHANG Feng, LI Songgang, LIU Bin, LIU Siqi, DONG Wei, WANG Jun, Gane K-S Wong, YU Jun & YANG Huanming* Beijing Genomics Institute, Chinese Academy of Sciences, Beijing 101300 National Center for Genome Information, Beijing 101300, China | 2003 | Chinese Science Bulletin2003,48,10: | 121 |
| 3 | Androgen receptor: structure, role in prostate cancer and drug discovery显示文摘Androgens and androgen receptors (AR) play a pivotal role in expression of the male phenotype. Several diseases, such as androgen insensitivity syndrome (AIS) and prostate cancer, are associated with alterations in AR functions. Indeed, androgen blockade by drugs that prevent the production of androgens and/or block the action of the AR inhibits prostate cancer growth. However, resistance to these drugs often occurs after 2-3 years as the patients develop castration-resistant prostate cancer (CRPC). In CRPC, a functional AR remains a key regulator. Early studies focused on the functional domains of the AR and its crucial role in the pathology. The elucidation of the structures of the AR DNA binding domain (DBD) and ligand binding domain (LBD) provides a new framework for understanding the functions of this receptor and leads to the development of rational drug design for the treatment of prostate cancer. An overview of androgen receptor structure and activity, its actions in prostate cancer, and how structural information and high-throughput screening have been or can be used for drug discovery are provided herein. | MH Eileen TAN Jun LI H Eric XU Karsten MELCHER Eu-leong YONG | 2015 | Acta Pharmacologica Sinica2015,36,1: | 39 |
| 4 | Development of distributed time-variant gain model for nonlinear hydrological systems显示文摘In this paper, a rainfall-runoff modeling system is developed based on a nonlinear Volterra functional series and a hydrological conceptual modeling approach. Two models, i.e. the time-variant gain model (TVGM) and the distributed time-variant gain model (DTVGM) that are built on the platform of Digital Elevation Model (DEM), Remote Sensing (RS) and Unit Hydro-logical Process were proposed. The developed DTVGM model was applied to two cases in the Heihe River Basin that is located in the arid and semiarid region of northwestern China and the Chaobai River basin located in the semihumid region of northern China. The results indicate that, in addition to the classic dynamic differential approach to describe nonlinear processes in hy-drological systems, it is possible to study such complex processes through the proposed sys-tematic approach to identify prominent hydrological relations. The DTVGM, coupling the advan-tages of both nonlinear and distributed hydrological models, can simulate variant hydrological processes under different environment conditions. Satisfactory results were obtained in fore-casting the time-space variations of hydrological processes and the relationships between land use/cover change and surface runoff variation. | XIA Jun1, 2, WANG Gangsheng1, TAN Ge1, YE Aizhong2 & G. H. Huang3 1. Key Laboratory of Water Cycle & Related Land Surface Processes, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China 2. State Key Laboratory of Water Resources & Hydropower Engineering Sciences, Wuhan University, Wuhan 430072, China 3. Faculty of Engineering, University of Regina, 3737 Wascana Parkway, Regina, Sask., S4S 0A2, Canada Correspondence should be addressed to Xia Jun | 2005 | Science China Earth Sciences2005,48,6: | 32 |
| 5 | Study on the functional changes of BK_(Ca) channels in human vascular smooth muscle cells from Han Chinese patients with hypertension显示文摘Chronic hypertension is associated with an impaired vascular relaxation due to an increased vascular tone.However,the underlying mechanisms are not fully understood in human patients.The present study was to inves-tigate whether large conductance Ca2+-and voltage-activated K+(BKCa)channels are involved in | Yang Yan Li Pengyun Cheng Jun Mao Liang Wen Jing Tan Xiaoqiu Liu Zhifei Zeng Xiaorong | 2013 | 泸州医学院学报2013,36,3: | 31 |
| 6 | Current Status and Challenge of Pseudorabies Virus Infection in China显示文摘Pseudorabies(PR),also called Aujeszky's disease,is a highly infectious disease caused by pseudorabies virus(PRV).Without specific host tropism,PRV can infect a wide variety of mammals,including pig,sheep,cattle,etc.,thereby causing severe clinical symptoms and acute death.PRV was firstly reported in China in 1950s,while outbreaks of emerging PRV variants have been documented in partial regions since 2011,leading to significant economic losses in swine industry.Although scientists have been devoting to the design of diagnostic approaches and the development of vaccines during the past years,PR remains a vital infectious disease widely prevalent in Chinese pig industry.Especially,its potential threat to human health has also attracted the worldwide attention.In this review,we will provide a summary of current understanding of PRV in China,mainly focusing on PRV history,the existing diagnosis methods,PRV prevalence in pig population and other susceptible mammals,molecular characteristics,and the available vaccines against its infection.Additionally,promising agents including traditional Chinese herbal medicines and novel inhibitors that may be employed to treat this viral infection,are also discussed. | Lei Tan Jun Yao Yadi Yang Wei Luo Xiaomin Yuan Lingchen Yang Aibing Wang | 2021 | Virologica Sinica2021,36,4: | 34 |
| 7 | Expression of a novel apoptosis inhibitor-survivin in colorectal carcinoma显示文摘AIM: To investigate the role of survivin expression in the pathogenesis of colorectal carcinoma.METHODS: Immunohistochemistry S-P method and terminal deoxynucleotidyl transferase-mediated dUTP nick end labeling (TUNEL) were used to detect the expression of survivin and apoptotic cell in situ in colorectal cancerous tissues, para-cancerous tissues and normal tissues of 48 cases of colorectal carcinoma.RESULTS: The survivin positive unit (PU) was higher in cancerous tissues (38.76±5.14)than in para-cancerous (25.17±7.26) or normal tissues (0.57±0.03) (P<0.05).The apoptosis index (AI) of para-cancerous tissues was(7.51±2.63%) higher than cancerous tissues (4.65±1.76%).The expression of survivin was associated with pathological grade, lymph node metastasis and Dukes stage of colorectal carcinoma.CONCLUSION: Survivin expression may play an important role in carcinogenesis of colorectal carcinoma and may be associated with malignant biological behaviors of colorectal carcinoma. | Hai-Yan Tan Jun Liu Shan-Min Wu He-Sheng Luo | 2005 | World Journal of Gastroenterology2005,11,30: | 28 |
| 8 | Application of a new TLC chemical method for detection of cyclopeptides in plants显示文摘Cyclopeptides have been investigated phytochemically less often because until now there has not been a special chemical method to detect them. Since we found cyclopeptides in Pseudostellaria heterophylla (Caryophyllaceae) in 1991, we have gradually established a special chemical detection method for detecting cyclopeptides in plants, which induces a new thin layer chromatography (TLC) protosite reaction with ninhydrin reagent. With this method, our group isolated and determined 73 cyclopeptides from 17 plants which belong to 5 families and 14 genuses, they are from dicyclopeptides to undecacyclopeptides, including 68 new ones, and were determined based on spectral, chemical and enzymic methods, especially 2D NMR and FAB-MS. Meantime, with this method cyclopeptides can be distinguished from peptidic amides based on their behaviour in TLC. | Jun Zhou Ninghua Tan | 2000 | Chinese Science Bulletin2000,45,20: | 25 |
| 9 | Characteristics of one-year observation of VOCs,NOx, and O_3 at an urban site in Wuhan, China显示文摘A continuous online observation of ozone and its precursors(NOx, VOCs) was carried out in central urban Wuhan from September 2016 to August 2017. The concentration levels of ozone,NOx, VOCs and their variations in urban Wuhan were analyzed, as well as effects of VOCs on ozone photochemical generation and the main controlling factors for ozone production. During the observation period, the average concentrations of ozone and NOx in Wuhan was 22.63 and30.14 ppbv, respectively, and the average concentration of VOCs was 32.61 ppbv(42.3% alkanes,13.0% alkenes, 10.0% aromatics, 7.3% acetylene, 9.9% OVOCs, and 10.5% halohydrocarbons).Ozone concentration was higher in spring and summer as compared with autumn and winter,wheras VOCs and NOx concentratios were lower in spring and summer but higher in autumn and winter. Aromatics and alkenes, two of VOCs species, showed the highest contributions to ozone formation potential in Wuhan(35.7% alkenes, 35.4 aromatics, 17.5% alkanes, 8.6% OVOCs,1.6% halogenated hydrocarbons, and 1.4% acetylene). Among all VOCs species, those with the highest contribution were ethylene, m-xylene, toluene, propylene and o-xylene. The contribution of these five compounds to the total ozone formation potential concentration was 43.90%.Ozone-controlling factors in Wuhan changed within one day; during the early morning hours(6:00–9:00), VOCs/NOx was low, and ozone generation followed a VOCs-limited regime.However, during the peak time of ozone concentration(12:00–16:00), the ratio of VOCs/NOx was relatively high, suggesting that ozone generation followed a NOx-limited regime. | Yichang Yang Xingang Liu Jun Zheng Qinwen Tan Miao Feng Yu Qu Junling An Nianliang Cheng | 2019 | Journal of Environmental Sciences2019,31,5: | 26 |
| 10 | LA-ICP-MS zircon U-Pb dating and phenocryst EPMA of dikes, Guocheng, Jiaodong Peninsula: Implications for North China Craton lithosphere evolution显示文摘Widespread dike swarm, including diorite-, monzonite-porphyry and lamprophyre, intruded in the al- tered breccia gold deposits along basin marginal faults, Guocheng, Jiaodong Peninsula. Petrography exhibits biotite enclaves in amphibole phenocrysts and the presence of acicular apatites in these dikes. Electron probe microanalyses (EPMA) show that the amphibole and clinopyroxene phenocryst’s mantle in diorite porphyry and lamprophyre respectively has sharply higher MgO (Mg#) and Cr2O3 contents in contrast to their cores. The plagioclase phenocryst in monzonite porphyry has reverse zoning. These results indicate that the magma mixing between mantle-derived mafic and crust-derived felsic magmas occurred in the original process of the dikes. Zircon cathodoluminescence (CL) images show well-developed magmatic oscillatory zones and the acquired LA-ICP-MS zircon U-Pb weighted mean 206Pb/238U ages are 114±2 Ma (MSDW=1.5) for monzonite porphyry (GS1) and 116±1 Ma (MSDW=0.8) for diorite porphyry (GS2), respectively. Earlier magmatic events in the northwest Jiaodong Peninsula represented by some inherited or captured zircons also occur in these dikes. Magmatic zircons from GS1 and GS2 display consistent chondrite-normalized REE patterns and Nb/Ta values, implying that they may share a similar or same source. HREE enrichment and obvious negative Eu anomalies of these zircons preclude garnet presented in their source. Our results, combined with preciously pub- lished data, indicate that dike intrusion and gold mineralization among quartz vein, altered tectonite and altered breccia gold deposits are broadly contemporaneous throughout the Jiaodong Peninsula. These also imply that the intensive crust-mantle interaction and asthenospheric underplating had oc- curred in the Early Cretaceous in the Peninsula, together with foundering of lower crust in the early Mesozoic, representing the different stages of lithosphere thinning in the North China Craton (NNC). | TAN Jun WEI JunHao GUO LingLi ZHANG KeQing YAO ChunLiang LU JianPei LI HongMei | 2008 | Science China Earth Sciences2008,51,10: | 23 |
| 11 | Age-related rhesus macaque models of COVID-19显示文摘Background:Since December 2019,an outbreak of the Corona Virus disease 2019(COVID-19)caused by severe acute respiratory syndrome coronavirus(SARS-CoV-2)in Wuhan,China,has become a public health emergency of international concern.The high fatality of aged cases caused by SARS-CoV-2 was a need to explore the possible age-related phenomena with non-human primate models.Methods:Three 3-5 years old and two 15 years old rhesus macaques were intratracheally infected with SARS-CoV-2,and then analyzed by clinical signs,viral replication,chest X-ray,histopathological changes and immune response.Results:Viral replication of nasopharyngeal swabs,anal swabs and lung in old monkeys was more active than that in young monkeys for 14 days after SARS-CoV-2 challenge.Monkeys developed typical interstitial pneumonia characterized by thickened alveolar septum accompanied with inflammation and edema,notably,old monkeys exhibited diffuse severe interstitial pneumonia.Viral antigens were detected mainly in alveolar epithelial cells and macrophages.Conclusion:SARS-CoV-2 caused more severe interstitial pneumonia in old monkeys than that in young monkeys.Rhesus macaque models infected with SARS-CoV-2 provided insight into the pathogenic mechanism and facilitated the development of vaccines and therapeutics against SARS-CoV-2 infection. | Pin Yu Feifei Qi Yanfeng Xu Fengdi Li Peipei Liu Jiayi Liu Linlin Bao Wei Deng Hong Gao Zhiguang Xiang Chong Xiao Qi Lv Shuran Gong Jiangning Liu Zhiqi Song Yajin Qu Jing Xue Qiang Wei Mingya Liu Guanpeng Wang Shunyi Wang Haisheng Yu Xing Liu Baoying Huang Wenling Wang Li Zhao Huijuan Wang Fei Ye Weimin Zhou Wei Zhen Jun Han Guizhen Wu Qi Jin Jianwei Wang Wenjie Tan Chuan Qin | 2020 | Animal Models and Experimental Medicine2020,3,1: | 22 |
| 12 | USP3 inhibits type I interferon signaling by deubiquitinating RIG-I-like receptors显示文摘(K63 ) 离氨酸 63 连接了 RIG-I 戏的 ubiquitination 在类型的激活的一个关键角色我干扰素小径,然而,为它的 deubiquitination 负责的分子的机制仍然糟糕被理解。这里,我们报导 deubiquitination 酶 ubiquitin 特定的朊酶(USP3 ) 3 否定地调整类型的激活我干扰素由指向 RIG-I 发信号。USP3 击倒 RIG-I 的明确地提高的连接 K63 的 ubiquitination, upregulated IRF3 的 phosphorylation 并且扩充了类型的生产我干扰素 cytokines 和抗病毒的免疫。我们进一步证明在 unstimulated 或 uninfected 房间在 USP3 和 RIG-I-like 受体( RLR )之间没有相互作用,但是在病毒的感染或 ligand 刺激之上, USP3 绑在 RLR 的 caspase 激活招募领域然后通过它的锌手指的合作劈开 polyubiquitin 链Ub有约束力的领域和 USP 催化领域。变化分析表明到 RIG-I 上的 polyubiquitin 链的 USP3 的那绑定是为它 polyubiquitin 链的劈开的前提步。我们的调查结果在 RIG-I 激活识别 USP3 的一个以前未被认出的角色并且提供卓见进 USP3 由禁止 RIG-I 发信号和抗病毒的免疫的机制。 | Jun Cui Yanxia Song Yinyin Li Qingyuan Zhu Peng Tan Yunfei Qin Helen Y Wang Rong-Fu Wang | 2014 | Cell Research2014,24,4: | 20 |
| 13 | Natural regeneration characteristics of Pinus sylvestris var. mongolica forests on sandy land in Honghuaerji, China显示文摘在蒙古的松的自然新生, Pinus sylvestris var。蒙古人集成通信适配器,在中国的 Honghuaerji 的森林(自然的蒙古的松的原版,砂土上的森林) 在 2004 被学习。新生索引的全部的平均值在成熟看台是更高的(超过 80% 单个茎比 50 年旧) ,新生索引 reached29 幼苗· m~ 的最大值(有在更年轻的看台的最低价值的 -2), ,例如,在里面 32 年旧并且 43-yearold 看台。看台年龄是决定自然新生的一个重要因素,它是在在这调查的更旧的看台的最好(例如关于 80 年旧) 。新生索引似乎不是仔细在与华盖坦诚的关系尽管蒙古的松是 photophilictree 种。在差距的每种类型,自然新生很好。新生索引在圆差距在南方和东方边是令人满意的;并且在东方, thenarrow 平方的边豁开。结果显示了那蒙古消瘦,幼苗能忍受 shadingunderstory,但是它不进入没有差距或大骚乱的华盖层,例如,火,弯屈 / 下雪损坏或清楚的切等等。这些结果可以潜在地提供参考书给蒙古的松的管理和造林,砂土在上的种植园干旱并且 semi-aridareas。象新生,结构和生态的条件上的全面比较那样的研究以后应该等等在自然的蒙古的松,森林和种植园之间被进行。 | ZHU Jiao-jun KANG Hong-zhang TAN Hui XU Mei-ling WANG Jun | 2005 | Journal of Forestry Research2005,16,4: | 19 |
| 14 | Mechanical mechanism of overlying strata breaking and development of fractured zone during close-distance coal seam group mining显示文摘This study mainly investigates the mechanical mechanism of overlying strata breaking and the development of fractured zones during close-distance coal seam group mining in the Gaojialiang coal mine.First,a mechanical model for the second'activation'of broken overlying strata is established,and the related mechanical'activation'conditions are obtained.A recursive formula for calculating the separation distance of overlying strata is deduced.Second,a height determining method for predicting the height of fractured zones during close-distance coal seam group mining is proposed based on two values,namely,the separation distance and ultimate subsidence value of overlying strata.This method is applied to calculate the fractured zone heights in nos.20107 and 20307 mining faces.The calculated results are almost equal to the field observation results.Third,a modified formula for calculating the height of a waterflowing fractured zone is proposed.A comparison of the calculated and observed results shows that the errors are small.The height determining method and modified formula not only build a theoretical foundation for water conservation mining at the Gaojialiang coal mine,but also provide a reference for estimating the height of water-flowing fractured zones in other coal mines with similar conditions. | Jianguo Ning Jun Wang Yunliang Tan Qiang Xu | 2020 | International Journal of Mining Science and Technology2020,30,2: | 19 |
| 15 | T_3/T_4 thoracic sympathictomy and compensatory sweating in treatment of palmar hyperhidrosis显示文摘背景(CS ) 补偿出汗是在为手掌的剧汗的胸的交感神经切除术, sympathicotomy 或内视镜的同情的块(ESB ) 以后的最普通的手术后的复杂并发症之一。这研究被进行检验在 CS 和是的同情的片断之间的关联在手掌的剧汗的外科的治疗的 transected ,并且这样检测在2004年10月和2006年6月之间的 CS.Methods 的出现的潜在的机制,有主要剧汗的 163 个病人随机被划分成二个组, T3 sympathicotomy ( 78 个病人)和 T4 sympathicotomy ( 85 ),经由单个腔 intubation 和脊间的录像中等在一般麻醉下面被操作在之上手掌的剧汗在所有病人被治好。后续(平均数(13.8? | YANG Jie TAN Jia-ju YE Guo-lin GU Wei-quan WANG Jun LIU Yan-guo | 2007 | Chinese Medical Journal2007,,18: | 19 |
| 16 | Silencing livin gene by siRNA leads to apoptosis induction,cell cycle arrest,and proliferation inhibition in malignant melanoma LiBr cells显示文摘目的:现在的学习的目的是调查 silencing 的效果由 apoptosis 上的 livin 和效果的表示上的小介入 RNA ( siRNA )的 livin 基因,房间周期,并且在人的│恶性黑瘤 LiBr cells.Methods 的增长:指向 livin 的三化学上合成的 siRNA duplexes 是短暂地 transfected 进 LiBr 房间,并且 livin 表示上的效果被即时 RT-PCR 在 mRNA 水平两个都检测,在蛋白质,由西方的 blotting.Apoptosis 的水平被终端 deoxynucleotidyl 评估 procaspase-3 的 调停transferase 的 digoxigenin-dUTP 刻痕结束标记试金,流动 cytometric 分析和由西方的弄污的激活的 caspase-3 分析。房间周期被增长是的流动 cytometry.Cell 分析由3-( 4,5-dimethylthiazol-2-yl )决定了 -2,5-diphenyltetrazolium bromide.Results : 3 设计 siRNA 之一能有效地两个都在剂量在 mRNA 和蛋白质层次将 livin 表示击倒--并且时间依赖者礼貌;有在在 48 h 的 mRNA 上的规定下面的最大值的 100 nmol/L ,并且在 transfection.Silencing livin 能显著地导致 apoptosis 以后,在在 72 h 的蛋白质上,拘捕房间在 G_0/G_1 阶段骑车,并且在 LiBr 房间禁止增长。同时, caspase-3 是 activated.Conclusion : livin 基因能为│恶性黑瘤由 siRNA 为基因治疗用作一个潜在的分子的目标。 | Hao WANG Sheng-shun TAN Xin-yang WANG Dong-hua LIU Chun-shui YU Zhuan-li BAI Da-lin HE Jun ZHAO3 | 2007 | Acta Pharmacologica Sinica2007,28,12: | 19 |
| 17 | Deletion of TLR4 attenuates lipopolysaccharide-induced acute liver injury by inhibiting inflammation and apoptosis显示文摘Septic acute liver injury is one of the leading causes of fatalities in patients with sepsis.Toll-like receptor 4(TLR4)plays a vital role in response to lipopolysaccharide(LPS)challenge,but the mechanisms underlying TLR4 function in septic injury remains unclear.In this study,we investigated the role of TLR4 in LPS-induced acute liver injury(ALI)in mice with a focus on inflammation and apoptosis.Wild-type(WT)and TLR4-knockout(TLR4^(−/−))mice were challenged with LPS(4 mg/kg)for 6 h.TLR4 signaling cascade markers(TLR4,MyD88,and NF-κB),inflammatory markers(TNFα,IL-1β,and IL-6),and apoptotic markers(Bax,Bcl-2,and caspase 3)were evaluated.We showed that LPS challenge markedly increased the levels of serum alanine aminotransferase(ALT)/aspartate aminotransferase(AST)and other liver pathological changes in WT mice.In addition,LPS challenge elevated the levels of liver carbonyl proteins and serum inflammatory cytokines,upregulated the expression of TLR4,MyD88,and phosphorylated NF-κB in liver tissues.Moreover,LPS challenge significantly increased hepatocyte apoptosis,caspase 3 activity,and Bax level while suppressing Bcl-2 expression in liver tissues.These pathological changes were greatly attenuated in TLR4^(−/−)mice.Similar pathological responses were provoked in primary hepatic Kupffer cells isolated from WT and TLR4^(−/−)mice following LPS(1μg/mL,6 h)challenge.In summary,these results demonstrate that silencing of TLR4 attenuates LPS-induced liver injury through inhibition of inflammation and apoptosis via TLR4/MyD88/NF-κB signaling pathway.TLR4 deletion confers hepatoprotection against ALI induced by LPS,possibly by repressing macrophage inflammation and apoptosis. | Sai-nan Chen Ying Tan Xiao-chan Xiao Qian Li Qi Wu You-you Peng Jun Ren Mao-long Dong | 2021 | Acta Pharmacologica Sinica2021,42,10: | 17 |
| 18 | Multiresidue determination and potential risks of emerging pesticides in aquatic products from Northeast China by LC-MS/MS显示文摘A simple method for determining 33 pesticides with a wide polarity range(log Kow0.6-4.5) in aquatic products was developed based on LC–MS/MS. The target analytes included three types of widely used pesticides: insecticides, fungicides and herbicides. Based on the optimization of ultrasonic assisted extraction and GPC clean-up procedures, the matrix effect, extraction recoveries and LOD were improved distinctively. LOQ of this method was below 0.5 ng/g for all pesticides, which is superior to values in the literature, and the matrix effect was reduced effectively(-14.7% to 7.5%). The method was successfully applied to investigate the pesticide residue levels of twenty-five samples including seven common kinds of fishes from Northeast China. The results showed that all targeted pesticides were present in the fish samples; however, their levels were low, except for atrazine, linuron,ethoprophos, tetrachlorvinphos, acetochlor and fenthion. Atrazine and linuron caught our attention because the concentrations of atrazine in fish samples from Liaoning province were in the range of 0.5-8 ng/g(w/w) with mean concentration of 2.3 ng/g, which were far above those of other pesticides. The levels of linuron were in the range of 0.6-6 ng/g(mean concentration 2.8 ng/g), which were the highest among all targeted pesticides in the Inner Mongolia. This is the first systematic investigation on the characteristics and levels of these pesticides in aquatic products from northeast China. Considering their toxicity and bioaccumulation, the potential risk of atrazine and linuron from consuming aquatic products should be paid more attention. | Lei Fu Xianbo Lu Jun Tan Longxing Wang Jiping Chen | 2018 | Journal of Environmental Sciences2018,30,1: | 17 |
| 19 | COVID-19 Outbreak Caused by Contaminated Packaging of Imported Cold-Chain Products—Liaoning Province,China,July 2020显示文摘Summary What is known about this topic?Few major outbreaks of coronavirus disease 2019(COVID-19)have occurred in China after major nonpharmaceutical interventions and vaccines have been deployed and implemented.However,sporadic outbreaks that had high possibility to be linked to cold chain products were reported in several cities of China..What is added by this report?In July 2020,a COVID-19 outbreak occurred in Dalian,China.The investigations of this outbreak strongly suggested that the infection source was from COVID-19 virus-contaminated packaging of frozen seafood during inbound unloading personnel contact.What are the implications for public health practice?Virus contaminated paper surfaces could maintain infectivity for at least 17–24 days at-25℃.Exposure to COVID-19 virus-contaminated surfaces is a potential route for introducing the virus to a susceptible population.Countries with no domestic transmission of COVID-19 should consider introducing prevention strategies for both inbound travellers and imported goods.Several measures to prevent the introduction of the virus via cold-chain goods can be implemented. | Huilai Ma1 Jianqun Zhang Ji Wang Ying Qin Cao Chen Yang Song Liang Wang Jun Meng Lingling Mao Fengqin Li Ning Li Jian Cai Yong Zhang Dayan Wang Yunting Xia Hong Wang Shaofeng Jiang Xiang Zhao Peihua Niu Wenjie Tan Tao Ma Yecheng Yao Naiying Mao Zhen Zhu Tianjiao Ji Qian Yang Baoying Huang Li Zhao Jianxing Yu Li Bai Shuangli Zhu Dongyan Wang Yan Zhang Yingwei Sun Mingchun Luan Yanhai Wang Haibo Sun Shihong Yang Zhijian Bo Xiang Ren Zhongjie Li George Fu Gao Wei Yao Wenqing Yao Zijian Feng Wenbo Xu | 2021 | China CDC weekly2021,3,21: | 16 |
| 20 | Effects of extract of Buddleja officinalis on partial inflammation of lacrimal gland in castrated rabbits with dry eye显示文摘AIM:To assess the effects of extract of Buddleja officinalis on tear secretion volume,tear film stability,expressions of TGF-β1,IL-1β,TNF-αin lacrimal gland of castrated rabbits with dry eye. METHODS:A total of 30 victory rabbits were divided averagely into normal group(A),model group(B),therapy group with low dose extract of Buddleja officinalis(C), therapy group with high dose extract of Buddleja officinalis (D)and therapy group with genistein(E).The dry eye model was established with orchiectomy on Group B,C,D,E.Group C,D,E were administered intragastrically with corresponding dose extract of Buddleja officinalis or genistein for 30 days. All rabbits were detected with SIT.TGF-β1,IL-1β,TNF-αwere detected with immunohistochemistry and the ultrastructure of lacrimal gland was observed under transmission electron microscope. RESULTS:The SIT value of group C,D,E were respectively 13.167±4.957,14.667±5.279,8.667±0.516,obviously higher than that of group B 5.667±2.338(P<0.01).The positive expression of IL-1βin acinar cell and glandular tube cell of group C,D were 0.470±0.048,0.510±0.088, obviously lower than that of group B 0.770±0.118(P<0.01). The positive expression of TNF-αof group C,D were 0.498±0.156,0.435±0.069,obviously lower than that of group B 0.769±0.095 too(P<0.01).The positive expression of TGF-β1 of group C,D were 0.406±0.171,0.497±0.147, obviously higher than that of group B 0.222±0.113(P<0.01). Any result of group C,D was positive compared with that of group E(P<0.05).Ultrastructure of the lacrimal gland of group C,D,E was well preserved,especially in D group it was remarkable. CONCLUSION:The extract of Buddleja officinalis can adjust lacrimal gland partial inflammation of dry eye. | Xiao-Lei Yao, Hui-An Zhu | 2010 | International Journal of Ophthalmology(English edition)2010,3,2: | 15 |