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| 1 | Analysis of Paraquat Intoxication Epidemic (2002-2011) within China显示文摘Paraquat, is a Bipy herbicide have been widely used in last decade in China. Because of its high human toxicity and mortality characteristics, paraquat has been gained considerable attention in recent years. In order to evaluate the epidemic status of paraquat harm to human health in China, | YIN Yu GUO Xiang ZHANG Shou Lin SUN Cheng Ye | 2013 | Biomedical and Environmental Sciences2013，26，6： | 43 |
| 2 | Current Trends of the Prevalence of Childhood Asthma in Three Chinese Cities: A Multicenter Epidemiological Survey显示文摘Objective To analyze the prevalence of asthma and asthma related symptoms among children aged 0-14 years in three Chinese cities and to obtain a crude estimation of the trend of childhood asthma prevalence in China. Methods A cross-sectional, population-based survey of prevalence of asthma was conducted in children aged from 0 to 14 years in 3 major cities of China (Beijing, Chongqing, and Guangzhou) with different geographic locations. All the subjects were randomly selected by a multi-stage sampling method. Three to five schools and kindergartens in 2 urban districts in each city were randomly selected for the survey, and a validated questionnaire that included the core questions of the International Study of Asthma and Allergies in Childhood, Phase Ⅲ questionnaire and several additional questions were used. All questionnaires were completed by parents or guardians of the selected children. Children whose parents responded affirmatively to the question' Has your child ever been diagnosed as asthma by a doctor' were recognized as victims of asthma. Results The prevalence of asthma in Beijing, Chongqing, and Guangzhou was 3.15%, 7.45%, and 2.09%, respectively. These values were significantly higher than those obtained 10 years ago in the national epidemiological survey in 2000 which used the same method of investigation and the same diagnotic criteria (χ2 =3.938, P=0.047; χ2 =73.506, P≤0.001; χ2 =11.956, P=0.001, in each city). Of the asthmatic children 57.21%, 69.91%, and 60.00% had their first attack before the age of 3 in Beijing, Chongqing, and Guangzhou, respectively. Wheezing was the primary clinical manifestation for all asthmatic children , followed by persistent cough and repeated respiratory infections. Both the prevalence of asthma and asthma-related symptoms were statistically higher in males than in females. Conclusion The prevalence of childhood asthma is statistically higher than that 10 years ago in the three Chinese cities. | JUAN BAI JiNG ZHAO KUN-LING SHEN LI XIANG AI-HUAN CHEN SUI HUANG YING HUANG JIAN-SHENG WANG RONG-WEI YE | 2010 | Biomedical and Environmental Sciences2010，23，6： | 37 |
| 3 | Appropriate treatment strategies improve survival of hepatocellular carcinoma patients with portal vein tumor thrombus显示文摘AIM:To evaluate the survival benefits of different treatment strategies for hepatocellular carcinoma(HCC)patients with portal vein tumor thrombus(PVTT)and to determine the prognosis factors.METHODS:Between 2007 and 2009,338 HCC patients treated for PVTT were retrospectively studied.The patients were divided into 4 groups that underwent different treatments:the conservative treatment group(n=75),the transarterial chemoembolization(TACE)group(n=86),the hepatic resection group(n=90),and the hepatic resection associated with postoperative TACE group(n=87).Survival rates were determined using the Kaplan-Meier method and differences between the groups were identified through log-rankanalysis.Cox’s proportional hazard model was used to identify the risk factors for survival.RESULTS:The mean survival periods for patients in the conservative treatment,TACE,hepatic resection and hepatic resection associated with postoperative TACE groups were 3.8,7,8.2 and 15.1 mo,respectively.Significant differences were observed in the survival rates.For the surgical resection associated with postoperative TACE group,the survival rates after 1,2 and3 years were 49%,37%and 19%,respectively.These results were significantly higher than those of the other groups(P<0.05).Meanwhile,the 1,2 and 3 year survival rates for the surgical resection group were 28%,20%and 15%,whereas those for the TACE group were17.5%,0%and 0%,respectively.These values significantly increased after hepatic resection compared with those after TACE(P<0.05).CONCLUSION:Surgical resection is the most effective therapeutic strategy for HCC patients with PVTT and results in high hepatic functional reserve.For patients who can tolerate the procedure,postoperative TACE is necessary to prevent recurrence and prolong the survival period. | Jia-Zhou Ye Yong-Quan Zhang Hai-Hong Ye Tao Bai Liang Ma Bang-De Xiang Le-Qun Li | 2014 | World Journal of Gastroenterology2014，20，45： | 32 |
| 4 | Diver CE versus Guardwire Plus for thrombectomy in patients with inferior myocardial infarction:a trial of aspiration of thrombus during primary angioplasty for inferior myocardial infarction显示文摘背景不同可行、安全的 thrombectomy 和远侧的保护设备用 Diver CE 设备在临床的 practice.The 效率和附属物 thrombectomy 的安全被使用了( Invatec ,意大利 )对 Guardwire 正设备( Medtronic ,美国)在经皮的冠的干预(一种总线标准)与尖锐劣等的 ST-segment-elevation 心肌的梗塞( STEMI )在病人被作比较不到 12 个小时以前,在心肌的梗塞( TIMI )的 thrombolysis 流动分级 0~1 ,并且总计吸藏第二等的结束点被让结束心脏舒张的体积( LVEDV )室,左室喷射部分( LVEF )和包括死亡的主要不利心脏的事件(权标),心肌的梗塞,在 122 个病人的 30 days.Results A 总数的目标容器 revascularization 和击同等地被划分成 Diver CE 组和 Guardwire 正组,它到年龄是可比较的(( 60 ?????????汣灯摩杯敲????朠潲灵?潃据畬楳湯??湡獵? | YAN Hong-bing WANG Jian LI Nan ZHU Xiao-ling GAO Hai AI Hui LI Xiang YE Ming CHI Yun-peng ZHANG Hong | 2007 | Chinese Medical Journal2007，，7： | 29 |
| 5 | Structure of the African swine fever virus major capsid protein p72显示文摘Dear Editor,African swine fever(ASF)caused by the African swine fever virus(ASFV)infection is a highly contagious and lethal disease of domestic pigs.Recent spread of the virus to China,1 the biggest pork-consuming country,has caused huge economic loss.So far there is no effective way to prevent the spread of the virus.Vaccine for protection from ASFV infection or effective treatments to cure ASF is urgently needed. | Qi Liu Bingting Ma Nianchao Qian Fan Zhang Xu Tan Jianlin Lei Ye Xiang | 2019 | Cell Research2019，29，11： | 28 |
| 6 | Cryo-electron microscopy structures of the SARS-CoV spike glycoprotein reveal a prerequisite conformational state for receptor binding显示文摘在 2002-2003 的 SARS 的全球爆发被新人的 coronavirus SARS-CoV 的感染引起。SARS-CoV 的感染主要通过病毒的表面 glycoproteins 被调停,它由 S1 和 S2 子单元组成并且在 virions 的信封上形成更整齐的尖铁。这里,我们报导处于单个粒子的 cryo 电子显微镜学决定的不同 conformational 状态更整齐的 SARS-CoV 表面尖铁的 ectodomain 结构。1 在 4.3 点决定了的符合构造?分辨率是三方面的对称并且有所有三受体绑定 C 终端域 1 (CTD1s ) S1 子单元在在位置下面。绑定下面到 SARS-CoV 受体 ACE2 的 CTD1s 不由于位的碰撞是可能的,建议 1 代表的符合构造受体绑定不活跃的状态。在 7.3, 5.7 和 6.8 点坚定的符合构造 2-4?决定都是不对称的,在哪个 RBD 旋转离开下面由不同角度到的位置一起来位置。起来 CTD1 为 ACE2 约会暴露受体绑定地点,建议符合构造 2-4 代表受体绑定活跃状态。这个 conformational 变化也为抵销指向 CTD1 的抗体的 SARS-CoV 的绑定被要求。这现象能被扩大到为受体绑定利用 S1 子单元的 CTD1 的另外的 betacoronaviruses,它提供新卓见进在感染期间更整齐的 coronavirus 熔化前尖铁的中间的状态。 | Miao Gui Wenfei Song Haixia Zhou Jingwei Xu Silian Chen Ye Xiang XinquanWang | 2017 | Cell Research2017，27，1： | 25 |
| 7 | 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 |
| 8 | Antiviral activities against influenza virus(FM1) of bioactive fractions and representative compounds extracted from Banlangen(Radix Isatidis)显示文摘OBJECTIVE: To study the antiviral activities of clemastanin B(CB), epigoitrin, phenylpropanoids portion(PEP) and the mixture of phenylpropanoids, alkaloids and organic acid fractions(PEP+ALK+OA)from Banlangen(Radix Isatidis).METHODS: The experiment consisted of four parts:therapeutic action, prophylaxsis action, inhibition of virus attachment, and direct virucidal action. Cytopathic effect(CPE) and 3-(4,5-Dimethylthiazol-2-yl)-2,5-diphenyltetrazolium(MTT) were used to assess antiviral activity.RESULTS: CB, epigoitrin, PEP and PEP + ALK + OA fractions from Banlangen(Radix Isatidis) extract significantly increased the viability of MDCK cells pre-infected with the virus compared with the virus control group in all the dilutions(P < 0.01). Pretreated with either pure compounds or chemical frac-tions of Banlangen(Radix Isatidis) extract in all the dilutions significantly improved the viability of MDCK cells(P < 0.01). The inhibition of virus absorption to the host cells by CB, epigoitrin and PEP was in a dose dependent manner.CONCLUSION: CB, epigoitrin, PEP and PEP+ALK+OA exert their anti-influenza activity by inhibiting the virus multiplication, prophylaxsis and blocking the virus attachment. The primary mode of action of PEP and PEP + ALK + OA is the inhibition of virus replication. The inhibitory effects on virus attachment and multiplication are the main modes for epigoitrin. | Xiao Ping Ye Weiyang Chen Jianwei Li Xiang | 2016 | Journal of Traditional Chinese Medicine2016，36，3： | 21 |
| 9 | Clinical trial with traditional Chinese medicine intervention ''tonifying the kidney to promote liver regeneration and repair by affecting stem cells and their microenvironment'' for chronic hepatitis B-associated liver failure显示文摘AIM:To study the clinical efficacy of traditional Chinese medicine(TCM)intervention'tonifying the kidney to promote liver regeneration and repair by affecting stem cells and their microenvironment'('TTK')for treating liver failure due to chronic hepatitis B.METHODS:We designed the study as a randomized controlled clinical trial.Registration number of Chinese Clinical Trial Registry is Chi CTR-TRC-12002961.A total of 144 patients with liver failure due to infection with chronic hepatitis B virus were enrolled in this randomized controlled clinical study.Participants were randomly assigned to the following three groups:(1)a modern medicine control group(MMC group,36patients);(2)a'tonifying qi and detoxification'('TQD')group(72 patients);and(3)a'tonifying the kidney to promote liver regeneration and repair by affecting stem cells and their microenvironment'('TTK')group(36patients).Patients in the MMC group received general internal medicine treatment;patients in the'TQD'group were given a TCM formula'tonifying qi and detoxification'and general internal medicine treatment;patients in the'TTK'group were given a TCM formula of'TTK'and general internal medicine treatment.All participants were treated for 8 wk and then followed at 48 wk following their final treatment.The primaryefficacy end point was the patient fatality rate in each group.Measurements of various virological and biochemical indicators served as secondary endpoints.The one-way analysis of variance and the t-test were used to compare patient outcomes in the different treatment groups.RESULTS:At the 48-wk post-treatment time point,the patient fatality rates in the MMC,'TQD',and'TTK'groups were 51.61%,35.38%,and 16.67%,respectively,and the differences between groups were statistically significant(P<0.05).However,there were no significant differences in the levels of hepatitis B virus DNA or prothrombin activity among the three groups(P>0.05).Patients in the'TTK'group had significantly higher levels of serum total bilirubin compared to MMC subjects(339.40μmol/L±270.09μmol/L vs 176.13μmol/L±185.70μmol/L,P=0.014).Serum albumin levels were significantly increased in both the'TQD'group and'TTK'group as compared with the MMC group(31.30 g/L±4.77g/L,30.72 g/L±2.89 g/L vs 28.57 g/L±4.56 g/L,P<0.05).There were no significant differences in levels of alanine transaminase among the three groups(P>0.05).Safety data showed that there was one case of stomachache in the'TQD'group and one case of gastrointestinal side effect in the'TTK'group.CONCLUSION:Treatment with'TTK'improved the survival rates of patients with liver failure due to chronic hepatitis B.Additionally,liver tissue was regenerated and liver function was restored. | Han-Min Li Zhi-Hua Ye Jun Zhang Xiang Gao Yan-Ming Chen Xin Yao Jian-Xun Gu Lei Zhan Yang Ji Jian-Liang Xu Ying-He Zeng Fan Yang Lin Xiao Guo-Guang Sheng Wei Xin Qi Long Qing-Jing Zhu Zhao-Hong Shi Lian-Guo Ruan Jia-Yao Yang Chang-Chun Li Hong-Bin Wu Sheng-Duo Chen Xin-La Luo | 2014 | World Journal of Gastroenterology2014，20，48： | 20 |
| 10 | Experimental investigation into stress-relief characteristics with upward large height and upward mining under hard thick roof显示文摘 | Ke Yang Xiang He Litong Dou Wenjun Liu Li Sun Haisong Ye | 2015 | International Journal of Coal Science & Technology2015，2，1： | 20 |
| 11 | Special Section:SARS-CoV-2 Preliminary evidence from a multicenter prospective observational study of the safety and efficacy of chloroquine for the treatment of COVID-19显示文摘Effective therapies are urgently needed for the SARS-CoV-2 pandemic.Chloroquine has been proved to have antiviral effect against coronavirus in vitro.In this study,we aimed to assess the efficacy and safety of chloroquine with different doses in COVID-19.In this multicenter prospective observational study,we enrolled patients older than 18 years old with confirmed SARS-CoV-2 infection excluding critical cases from 12 hospitals in Guangdong and Hubei Provinces.Eligible patients received chloroquinephosphate s00 mg,orally,once(half dose)or twice(full dose)daily.Patients treated with non-chloroquine therapy were included as historical controls.The primary endpoint is the time to undetectable viral RNA.Secondary outcomes include the proportion of patients with undetectable viral RNA by day 10 and 14,hospitalization time,duration of fever,and adverse events.A total of 197 patients completed chloroquine treatment,and 176patients were included as historical controls.The median time to achieve an undetectable viral RNA was shorter in chloroquine than in non-chloroquine(absolute difference in medians-6.0 days;95%CI-6.0 to—4.0).The duration of fever is shorter in chloroquine(geometric mean ratio 0.6;95%CIO.5 to 0.8).No serious adverse events were observed in the chloroquine group.Patients treated with half dose experienced lower rate of adverse events than with full dose.Although randomized trials are needed for further evaluation,this study provides evidence for safety and efficacy of chloroquine in COVID-19 and suggests that chloroquine can be a cost-effective therapy for combating the COVID-19 pandemic. | Mingxing Huang Man Li Fei Xiao Pengfei Pang Jiabi Liang Tiantian Tang Shaoxuan Liu Binghui Chen Jingxian Shu Yingying You Yang Li Meiwen Tang Jianhui Zhou Guanmin Jiang Jingfen Xiang Wenxin Hong Songmei He Zhaoqin Wang Jianhua Feng Changqing Lin Yinong Ye Zhilong Wu Yaocai Li Bei Zhong Ruilin Sun Zhongsi Hong Jing Liu Huili Chen Xiaohua Wang Zhonghe Li Duanqing Pei Lin Tian Jinyu Xia Shanping Jiang Nanshan Zhong Hong Shan | 2020 | National Science Review2020，7，9： | 20 |
| 12 | Coinfection with influenza A virus enhances SARS-CoV-2 infectivity显示文摘The upcoming flu season in the Northern Hemisphere merging with the current COVID-19 pandemic raises a potentially severe threat to public health.Through experimental coinfection with influenza A virus(IAV)and either pseudotyped or live SARS-CoV-2 virus,we found that IAV preinfection significantly promoted the infectivity of SARS-CoV-2 in a broad range of cell types.Remarkably,in vivo,increased SARS-CoV-2 viral load and more severe lung damage were observed in mice coinfected with IAV.Moreover,such enhancement of SARS-CoV-2 infectivity was not observed with several other respiratory viruses,likely due to a unique feature of IAV to elevate ACE2 expression.This study illustrates that IAV has a unique ability to aggravate SARS-CoV-2 infection,and thus,prevention of IAV infection is of great significance during the COVID-19 pandemic. | Lei Bai Yongliang Zhao Jiazhen Dong Simeng Liang Ming Guo Xinjin Liu Xin Wang Zhixiang Huang Xiaoyi Sun Zhen Zhang Lianghui Dong Qianyun Liu Yucheng Zheng Danping Niu Min Xiang Kun Song Jiajie Ye Wenchao Zheng Zhidong Tang Mingliang Tang Yu Zhou Chao Shen Li Zhou Yu Chen Huan Yan Ke Lan Ke Xu | 2021 | Cell Research2021，31，4： | 16 |
| 13 | Recent Development of Chaos Theory in Topological Dynamics显示文摘We give a summary on the recent development of chaos theory in topological dynamics,focusing on Li–Yorke chaos, Devaney chaos, distributional chaos, positive topological entropy, weakly mixing sets and so on, and their relationships. | Jian LI Xiang Dong YE | 2016 | Acta Mathematica Sinica,English Series2016，32，1： | 14 |
| 14 | Remote Ischemic Postconditioning for Ischemic Stroke: A Systematic Review and Meta-Analysis of Randomized Controlled Trials显示文摘 | Jing-Jing Zhao Hui Xiao Wen-Bo Zhao Xiao-Pei Zhang Yu Xiang Zeng-Jie Ye Miao-Miao Mo Xue-Ting Peng Lin Wei | 2018 | Chinese Medical Journal2018，，8： | 14 |
| 15 | Comprehensive treatments for hepatocellular carcinoma with tumor thrombus in major portal vein显示文摘AIM: To evaluate the efficacy of transcatheter arterial chemoembolisation(TACE) compared with surgical intervention and sorafenib for treatment of hepatocellular carcinoma(HCC) in patients with tumor thrombus extending to the main portal vein.METHODS: From 2009 to 2013, a total of 418 HCC patients with tumor thrombus extending to the main portal vein were enrolled in this study and divided into four groups. These groups underwent different treatments as follows: TACE(n = 307), surgical intervention(n = 54), sorafenib(n = 15) and palliativetreatment(n = 42). Overall survival rates were determined by Kaplan-Meier method, and differences between the groups were identified through log-rank analysis. Cox's proportional hazard model was used to identify the risk factors for survival.RESULTS: The mean survival periods for patients in the TACE, surgical intervention, sorafenib and palliative treatment groups were 10.39, 4.13, 5.54 and 2.82 mo, respectively. For the TACE group, the 3-, 6-, 12-and 24-mo survival rates were 94.1%, 85.9%, 51.5% and 0.0%, respectively. The corresponding rates were 60.3%, 22.2%, 0.0% and 0.0% for the surgical intervention group and 50.9%, 29.5%, 0.0% and 0.0% for the sorafenib group. Evidently, the results in the TACE group were significantly higher than those in the other groups(P < 0.0001). Furthermore, no significant difference among survival rates was observed between TACE with/without sorafenib(10.22 mo vs 10.52 mo, P = 0.615). No significant difference in survival rates was also found among the surgical intervention, sorafenib and palliative treatment groups(P > 0.05). These values significantly increased after TACE with/without sorafenib compared with other treatments(P < 0.05).CONCLUSION: For HCC patients with tumor thrombus extending to the main portal vein, TACE can yield a higher survival rate than surgical intervention or sorafenib treatment. | Hai-Hong Ye Jia-Zhou Ye Zhi-Bo Xie Yu-Chong Peng Jie Chen Liang Ma Tao Bai Jun-Ze Chen Zhan Lu Hong-Gui Qin Bang-De Xiang Le-Qun Li | 2016 | World Journal of Gastroenterology2016，22，13： | 14 |
| 16 | 加拿大新生儿重症监护室院内感染及其变化趋势对胎龄<33周早产儿预后的影响(英文)显示文摘败血症是新生儿重症监护室(NICU)的危重病症及造成新生儿死亡的重要原因之一,根据其发病时间,可分为早发(生后2 d内)和晚发(生后2 d后)。其中晚发的新生儿败血症,一般考虑为院内感染(NI)。胎龄越小,出生体重越低,NI的发生率越高。NI的发生率在加拿大各NICU之间差别较大,与各中心医护人员的相关诊疗行为密切相关。在国家卫生研究院"基于循证医学的医疗质量改进项目"的推动下,2003~2009年间加拿大全国NICU总的NI率明显下降,但不同中心各自感染率的变化趋势仍极为不同。本研究纳入了加拿大全国共24家NICU在2008~2012年间所有收入院的胎龄〈33周的早产儿共18 961名,探讨NI率的变化趋势以及其与早产儿预后的关系。 | Caitlin Jantzen Abhay Lodha Mirea Lucia Shoo K Lee Xiang Y Ye Koravangattu Sankaran 姚跃 | 2015 | 中国当代儿科杂志2015，17，10： | 13 |
| 17 | Eleven COVID-19 Outbreaks with Local Transmissions Caused by the Imported SARS-CoV-2 Delta VOC-China,July-August,2021显示文摘Starting from December 2019,Wuhan,China,encountered the first outbreak of coronavirus disease 2019(COVID-19)(1-2).The epidemic was successfully suppressed by strict containment so that the number of infected people was reduced to 0 on April 8,2020(3–4).After that,China experienced roughly 3 dozen outbreaks with local transmission caused by imported severe acute respiratory syndrome coronavirus 2(SARS-CoV-2). | Lei Zhou Kai Nie Hongting Zhao Xiang Zhao Bixiong Ye Ji Wang Cao Chen Hong Wang Jiangli Di Jinsong Li Chao Li Zhixiao Chen Ruiqi Ren Peihua Niu Hui Chen Tao Chen Yali Wang Lili Li Bingxue Han Ruhan A Si Chen Dan Li Dan Li Chunxia Jin Xin Zhang Jiangmei Liu Chunyu Xu Yecheng Yao Yenan Feng Zhili Li Bike Zhang Yang Song Peter Hao Yanping Zhang Hao Li Qun Li George F.Gao Guoqing Shi Wenbo Xu | 2021 | China CDC weekly2021，3，41： | 13 |
| 18 | Quantification and timing of porosity evolution in tight sand gas reservoirs:an example from the Middle Jurassic Shaximiao Formation,western Sichuan,China显示文摘The diagenesis and porosity evolution of the Middle Jurassic Shaximiao sandstones were analyzed based on petrographic observations.X-ray diffractometry.scanning electron microscopy observations,carbon and oxygen stable isotope geochemistry,fluid inclusion microthermometry,and thermal and burial history modeling results.The point count data show that secondary pores(av.5.5%) are more abundant than primary pores(av.3.7%) and are thus the dominant pore type in the Shaximiao sandstones.Analysis of porosity evolution indicates that alteration of sandstones mainly occurred during two paragenetic stages.Mechanical compaction and cementation by early chlorite,calcite,and quartz typically decrease the depositional porosity(40.9%) by an average of37.2%,leaving porosity of 3.7%after stage Ⅰ(<85 ℃,175-145 Ma).The original intergranular porosity loss due to compaction is calculated to be 29.3%,suggesting that mechanical compaction is the most significant diagenetic process in primary porosity destruction.Stage Ⅱ can be further divided into two sub-stages(Stage Ⅱ_a and StageⅡ_b).Stage Ⅱ_a(85-120 ℃,145-125 Ma) is characterized by late dissolution,which enhanced porosity by 8.8%,and the porosity increased from 3.7%to 12.5%.During stageⅡ_b(>120 ℃,125-0 Ma),the precipitation of late chlorite,calcite,quartz,and kaolinite destroyed 3.3%porosity,leaving porosity of 9.2%in the rock today. | Zheng-Xiang Lü Su-Juan Ye Xiang Yang Rong Li Yuan-Hua Qing | 2015 | Petroleum Science2015，12，2： | 13 |
| 19 | Cancer Incidence and Mortality Survey in Wuwei, Gansu Province, Northwestern China from 2003 to 2012: A Retrospective Population-based Study显示文摘 | Cheng-Yun Li Yan-Cheng Ye Ge-Yu Liang Wen-Hua Zhang Zhi-Yi Zhang Xiao-Qin Liu Ying Liang Fen-Lan Xu Jing Li Ji-Lian Xiang | 2016 | Chinese Medical Journal2016，，6： | 12 |
| 20 | Influence of up-regulation of Notch ligand DLL4 on biological behaviors of human gastric cancer cells显示文摘AIM: To investigate the potential roles of Delta-like ligand 4 (DLL4) on the biological behavior of gastric cancer cells and its molecular mechanisms. METHODS: A recombinant eukaryotic expression vector containing human DLL4 gene was constructed and transfected into the human gastric cancer cell line SGC7901. Clones with up-regulated DLL4 were selected and amplified. The effect of DLL4 up-regulation on gastric cancer cell growth was assessed using cell growth assay. The migration and invasion were assessed using a transwell migration assay and matrigel invasion assay. Matrix metalloproteinases were detected using the zymogram technique. Cells were implanted subcutaneously into male BALB/c nu/nu mice. Tumor volumes were then calculated and compared. DLL4 staining in the implanted tumor was performed using immunohistochemistry technique. RESULTS: Growth curves over a six-day time course showed significantly promoted cell proliferation of SGC7901 cells with up-regulated DLL4. DLL4 up-regulation in SGC7901 cells promoted the migration (205.4 ± 15.2 vs 22.3 ± 12.1, P < 0.05) and invasion (68.8 ± 5.3 vs 18.2 ± 6.0, P < 0.05) in vitro and tumorigenicity in vivo (2640.5 ± 923.6 mm 3 vs 1115.1 ± 223.8 mm 3 , P < 0.05). Furthermore, significantly increased mRNA level and increased secretion of matrix metalloproteinase-2 (MMP-2) proenzyme were observed in SGC7901 cells with up-regulated DLL4. However, increased MMP-9 mRNA level but decreased extracellular MMP-9 proenzyme level was observed. CONCLUSION: Our observations indicated a mechanism by which activation of DLL4-mediated Notch signaling promotes the expression and secretion of MMP-2 proenzyme and influences the progress of gastric cancer. | Guo-Gang Li Lan Li Chao Li Long-Yun Ye Xiao-Wen Li Da-Ren Liu Qi Bao Yi-Xiong Zheng Da-Peng Xiang Li Chen Jian Chen | 2013 | World Journal of Gastroenterology2013，19，28： | 12 |
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