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1A rapid advice guideline for the diagnosis and treatment of 2019 novel coronavirus(2019-nCoV) infected pneumonia(standard version)显示文摘In December 2019, a new type viral pneumonia cases occurred in Wuhan, Hubei Province;and then named '2019 novel coronavirus(2019-nCoV)' by the World Health Organization(WHO) on 12 January 2020. For it is a never been experienced respiratory disease before and with infection ability widely and quickly, it attracted the world’s attention but without treatment and control manual. For the request from frontline clinicians and public health professionals of 2019-nCoV infected pneumonia management, an evidence-based guideline urgently needs to be developed. Therefore, we drafted this guideline according to the rapid advice guidelines methodology and general rules of WHO guideline development;we also added the first-hand management data of Zhongnan Hospital of Wuhan University. This guideline includes the guideline methodology, epidemiological characteristics, disease screening and population prevention, diagnosis, treatment and control(including traditional Chinese Medicine), nosocomial infection prevention and control, and disease nursing of the 2019-nCoV. Moreover, we also provide a whole process of a successful treatment case of the severe 2019-nCoV infected pneumonia and experience and lessons of hospital rescue for 2019-nCoV infections. This rapid advice guideline is suitable for the first frontline doctors and nurses, managers of hospitals and healthcare sections, community residents, public health persons, relevant researchers, and all person who are interested in the 2019-nCoV.Ying-Hui Jin Lin Cai Zhen-Shun Cheng Hong Cheng Tong Deng Yi-Pin Fan Cheng Fang Di Huang Lu-Qi Huang Qiao Huang Yong Han Bo Hu Fen Hu Bing-Hui Li Yi-Rong Li Ke Liang Li-Kai Lin Li-Sha Luo Jing Ma Lin-Lu Ma Zhi-Yong Peng Yun-Bao Pan Zhen-Yu Pan Xue-Qun Ren Hui-Min Sun Ying Wang Yun-Yun Wang Hong Weng Chao-Jie Wei Dong-Fang Wu Jian Xia Yong Xiong Hai-Bo Xu Xiao-Mei Yao Yu-Feng Yuan Tai-Sheng Ye Xiao-Chun Zhang Ying-Wen Zhang Yin-Gao Zhang Hua-Min Zhang Yan Zhao Ming-Juan Zhao Hao Zi Xian-Tao Zeng Yong-Yan Wang Xing-Huan Wang 2020Military Medical Research2020,7,1:161
2Analysis of status and countermeasures of cancer incidence and mortality in China显示文摘Cancer is the leading cause of human deaths in the world and produces serious economic burdens. On September 12, 2018, the academic journal A Cancer Journal for Clinicians published an article about the latest statistics of cancers worldwide, which provided a status report on the global burden of 36 cancers in 185 countries worldwide. Cancer has also become a serious public health problem in China and caused more and more attention of the government and people in recent years. This review analyzes the incidence, mortality and prevalent trend of cancers in China, discusses the reasons behind this status, and reviews the potential countermeasures for cancer prevention and control in China.Chunchun Wu Mengna Li Hanbing Meng Yukun Liu Weihong Niu Yao Zhou Ran Zhao Yumei Duan Zhaoyang Zeng Xiaoling Li Guiyuan Li Wei Xiong Ming Zhou 2019Science China(Life Sciences)2019,62,5:175
3Multimodality treatment in hepatocellular carcinoma patients with tumor thrombi in portal vein显示文摘AIM To compare the therapeutic effect andsignificances of multimodality treatment forhepatocellular carcinoma (HCC) with tumorthrombi in portal vein (PVTT).METHODS HCC patients (n = 147) with tumortrombi in the main portal vein or the first branchof portal vein were divided into four groups bythe several therapeutic methods. There wereconservative treatment group in 18 out ofpatients (group A); and hepatic artery ligation(HAL) and/or hepatic artery infusion (HAl)group in 18 patients (group B), in whompostoberative chemoembolization was doneperiodically; group of removal of HCC with PVTTin 79 (group C) and group of transcatheterhepatic arterial chemoembolization (TACE) orHAl and/or portal vein infusion (PVI) afteroperation in 32 (group D).RESULTS The median survival period was 12months in our series and the 1-, 3-, and 5-yearsurvival rates were 44.3%, 24.5% and 15.2%,respectively. The median survival times were 2,5, 12 and 16 months in group A, B, C and D,respectively. The 1-, 3- and 5-year survival rateswere 5.6%, 0% and 0% in group A; 22.2%,5.6% and 0% in group B; 53.9%, 26.9% and16.6% in group C; 79.3%, 38.9% and 26.8% ingroup D, respectively. Significant differenceappeared in the survival rates among the groups(P<0.05).CONCLUSION Hepatic resection with removalof tumor thrombi and HCC should increase thecurative effects and be encouraged for theprolongation of life span and quality of life forHCC patients with PVTT, whereas the besttherapeutic method for HCC with PVTT is withregional hepatic chemotherapy orchemoemblization after hepatic resection withremoval of tumor thrombi.Jia Fan Zhi Quan Wu Zhao You Tang Jian Zhou Shuang Jian Qiu Zeng Chen Ma Xin Da Zhou Sheng Long Ye Liver Cancer Institute, Zhongshan Hospital, Fudan University Medical Center (Former Shanghai University), 136 Yixueyuan Road, Shanghai 200032, China 2001World Journal of Gastroenterology2001,7,1:80
4Black carbon aerosols and their radiative properties in the Pearl River Delta region显示文摘The climatic and environmental effects of atmospheric aerosols are a hot topic in global science community, and radiative properties of the aerosols are one of the important parameters in assessing climatic change. Here we studied the black carbon concentration and absorption coefficient measured with aethalometers, scattering coefficient measured with nephelometers, and single scattering albedo derived at an atmospheric composition watch station in Guangzhou from 2004 to 2007. Our main results are as follows. The data of black carbon concentration and absorption coefficients measured with instruments cannot be directly used until they are measured in parallel with internationally accepted instruments for comparison, calibration, and reduction. After evaluation of the data, the result shows that the monthly mean of BC concentration varies 3.1―14.8 μg·m-3 and the concentration decreases by about 1 μg·m-3 in average over the four years; It is higher in the dry season with a multi-year mean of 8.9 μg/m3 and lower in the rainy season with a multi-year mean of 8.0 μg·m-3; The extreme maximum of monthly mean concentration occurred in December 2004 and extreme minimum in July 2007, and a 4-year mean is 8.4 μg·m-3. It is also shown that monthly mean scattering coefficient derived varies 129 -565 Mm-1, monthly mean absorption coefficient 32-139 Mm-1, and monthly mean single scattering albedo 0.71-0.91, with annual mean values of 0.80, 0.82, 0.79 and 0.84 for 2004, 2005, 2006 and 2007, respectively. Three instruments were used to take simultaneous measurements of BC in PM10, PM2.5, and PM1 and the results showed that PM2.5 took up about 90% of PM10 and PM1 accounted for about 68% of PM2.5, and BC aerosols are mainly present in fine particulates. The variability of BC concentrations is quite consistent between the Nancun station (141 m above sea level) and the Panyu station (13 m above sea level), which are 8 km apart from each other. The concentration in higher altitude station (Panyu) is consistently lower than the lower altitude station (Nancun), and the difference of annual mean is about 4 μg·m-3.WU Dui MAO JieTai DENG XueJiao TIE XueXi ZHANG YuanHang ZENG LiMin LI Fei TAN HaoBo BI XueYan HUANG XiaoYing CHEN Jing DENG Tao 2009Science China Earth Sciences2009,52,8:58
5Nitric oxide suppresses NLRP3 inflammasome activation and protects against LPS-induced septic shock显示文摘Inflammasomes 是触发 caspase-1 的激活和 interleukin-1β 的成熟的多蛋白质建筑群;(IL-1β) ,然而,这些建筑群的规定仍然保持糟糕描绘了。这里,我们显示出那氮的氧化物(没有) 禁止了调停 NLRP3 的 ASC pyroptosome 形成, caspase-1 激活和 IL-1β在从老鼠和人的 myeloid 房间的分泌物。同时,内长不否定地也源于 iNOS (没有 synthase 的可诱导的形式) 调整 NLRP3 inflammasome 激活。iNOS 的弄空响应 LPS 和 ATP 导致了不正常的线粒体的增加的累积,它为增加的 IL-1β 负责;生产和 caspase-1 激活。没有生产的 iNOS 缺乏或药理学抑制在 vivo 提高了 NLRP3 依赖的 cytokine 生产,因此在老鼠从导致 LPS 的败血增加死亡,它被 NLRP3 阻止缺乏。我们的结果因此经由线粒体的稳定作为 NLRP3 inflammasome 的一个批评否定管理者不识别。这研究有重要含意让新策略的设计控制 NLRP3 相关的疾病。Kairui Mao Shuzhen Chen Mingkuan Chen Yonglei Ma Yan Wang Bo Huang Zhengyu He Yan Zeng Yu Htl Shuhui Sun Jing Li Xiaodong Wu Xiangrui Wang Warren Strober Chang Chen Guangxun Meng Bing Sun 2013Cell Research2013,23,2:59
6Effect of Oxymatrine on the TGFbeta-Smad signaling pathway in rats with CCl_4-induced hepatic fibrosis显示文摘AIM: To explore the anti-fibrotic effect of Oxymatrine on CCl4-induced liver fibrosis in rats and its modulation on the TGFbeta-Smad signaling pathway. METHODS: One hundred healthy male SD rats were randomly divided into three groups: normal group (n = 20), treatment group of Oxymatrine (n = 40) and CCl4-induced fibrosis group (n = 40). Experimental hepatic fibrosis was induced by subcutaneous injection of carbon tetrachloride (CCl4 soluted in liquid paraffin with the concentration of 300 g/L, the dosage of injection was 3 mL/kg, twice per week for 8 wk). The treated rats received Oxymatrine via celiac injection at a dosage of 10 mg/kg twice a week at the same time. The deposition of collagen was observed with H&E and Masson staining. The concentration of serum TGF-β1 was assayed with ELISA. The gene expression of Smads and CBP (CREB binding protein) was detected with in situ hybridization (ISH) and immunohistochemistry (IH), respectively. All the experimental figures were scanned and analyzed with special figure-analysis software. RESULTS: A significant reduction of collagen deposition and rearrangement of the parenchyma was noted in the liver tissue of Oxymatrine-treated rats. The semi- quantitative histological scores (2.43 ± 0.47 μm2 vs 3.76 ± 0.68 μm2, P < 0.05) and average area of collagen in those rats were significantly decreased when compared with hepatic cirrhosis model rats (94.41 ± 37.26 μm2 vs 290.86 ± 89.37 μm2, P < 0.05). The gene expression of Smad 3 mRNA was considerably decreased in the treated animals. The A value of Smad 3 mRNA was lower in the treated rats than the model rats (0.034 ± 0.090 vs 0.167 ± 0.092, P < 0.05). Contrarily, the A value of Smad 7 mRNA was increased considerably in the treated animals (0.175 ± 0.065 vs 0.074 ± 0.012, P < 0.05). There was an obvious decrease in the expression of CBP mRNA in treated rats as illuminated by a reduction of its A value when compared with model rats (0.065 ± 0.049 vs 0.235 ± 0.025, P < 0.001). CONCLUSION: Oxymatrine is effective in reducing the production and deposition of collagen in the liver tissue of experimental rats. Oxymatrine could promote the expression of Smad 7 and inhibit the expression of Smad 3 and CBP in CCl4-induced hepatic fibrosis in SD rats, could modulate the fibrogenic signal transduction of TGFβ-Smad pathway.Xiao-Ling Wu Wei-Zheng Zeng Ming-De Jiang Jian-Ping Qin Hui Xu 2008World Journal of Gastroenterology2008,14,13:42
7Chinese deserts and sand fields in Last Glacial Maximum and Holocene Optimum显示文摘The Last Glacial Maximum (LGM, c. 26-16 ka) and the Holocene Optimum (HO, c. 9-5 ka) were characterized by cold-dry and warm-wet climates respectively in the recently geological Earth. How Chinese deserts and sand fields responded to these distinctive climatic changes is still not clear, however. To reconstruct environments of the deserts and sand fields during the LGM and HO is helpful to understand the forcing mechanisms of environment change in this arid region, and to test paleoclimatic modeling results. Through our long-term field and laboratory investigations, 400 optically stimulated luminescence (OSL) ages and more than 100 depositional records in the Chinese deserts and sand fields were obtained; on the basis of these data, we reconstruct spatial distributions of the deserts and sand fields during the LGM and HO. Our results show that the sand fields of Mu Us, Hunshandake, Horqin and Hulun Buir in northern and northeastern China had expanded 25%, 37%, 38% and 270%, respectively, during the LGM; the sand fields of Gonghe in the northeastern Qinghai-Tibetan Plateau had expanded 20%, and the deserts of Badain Jaran, Tengger in central northern China had expanded 39% and 29% separately during the LGM; the deserts of Taklimakan, Gurbantünggüt and Kumtag in northwestern China had expanded 10%-20% respectively, compared to their modern areas. On the other hand, all of the sand fields were nearly completely covered by vegetation during the HO; the deserts in northwestern and central northern China were reduced by around 5%-20% in area during this time. Lakes in this arid region were probably expanded during the HO but this conclusion needs more investigation. Compared with the geological distributions of deserts and sand fields, human activity has clearly changed (expanded) the area of active sand dunes at the present time. Our observations show that environmental conditions of Chinese deserts and sand fields are controlled by regional climate together with human activity.LU HuaYu YI ShuangWen XU ZhiWei ZHOU YaLi ZENG Lin ZHU FangYing FENG Han DONG LiNa ZHUO HaiXin YU KaiFeng MASON Joseph WANG XiaoYong CHEN YingYong LU Qi WU Bo DONG ZhiBao QU JianJun WANG XunMing GUO ZhengTang 2013Chinese Science Bulletin2013,58,23:40
8Review of risk factors for human echinococcosis prevalence on the Qinghai-Tibet Plateau, China: a prospective for control options显示文摘Objective: Echinococcosis is a major parasitic zoonosis of public health importance in western China. In 2004, the Chinese Ministry of Health estimated that 380,000 people had the disease in the region. The Qinghai-Tibet Plateau is highly co-endemic with both alveolar echinococcosis (AE) and cystic echinococcosis (CE). In the past years, the Chinese government has been increasing the financial support to control the diseases in this region. Therefore, it is very important to identify the significant risk factors of the diseases by reviewing studies done in the region in the past decade to help policymakers design appropriate control strategies. Review: Selection criteria for which literature to review were firstly defined. Medline, CNKI (China National Knowledge Infrastructure), and Google Scholar were systematically searched for literature published between January 2000 and July 2011. Significant risk factors found by single factor and/or multiple factors analysis were listed, counted, and summarized. Literature was examined to check the comparability of the data;age and sex specific prevalence with same data structures were merged and used for further analysis. A variety of assumed social, economical, behavioral, and ecological risk factors were studied on the Plateau. Those most at risk were Tibetan herdsmen, the old and female in particular. By analyzing merged comparable data, it was found that females had a significant higher prevalence, and a positive linearity relationship existed between echinococcosis prevalence and increasing age. In terms of behavioral risk factors, playing with dogs was mostly correlated with CE and/or AE prevalence. In terms of hygiene, employing ground water as the drinking water source was significantly correlated with CE and AE prevalence. For definitive hosts, dog related factors were most frequently identified with prevalence of CE or/and AE;fox was a potential risk factor for AE prevalence only. Overgrazing and deforestation were significant for AE prevalence only. Conclusion: Tibetan herdsmen communities were at the highest risk of echinococcosis prevalence and should be the focus of echinococcosis control. Deworming both owned and stray dogs should be a major measure for controlling echinococcosis;treatment of wild definitive hosts should also be considered for AE endemic areas. Health education activities should be in concert with the local people's education backgrounds and languages in order to be able to improve behaviors. Further researches are needed to clarify the importance of wild hosts for AE/CE prevalence, the extent and range of the impacts of ecologic changes (overgrazing and deforestation) on the AE prevalence, and risk factors in Tibet.Qian Wang Yan Huang Liang Huang Wenjie Yu Wei He Bo Zhong Wei Li Xiangman Zeng Dominique A Vuitton Patrick Giraudoux Philip S Craig Weiping Wu 2014Infectious Diseases of Poverty2014,3,1:35
9Fracture development in shale and its relationship to gas accumulation显示文摘有高石英,长石和碳酸盐的页岩,将有低泊松比率,高幼仔模量和高易碎物。作为结果,页岩是导致的在外部力量下面生产自然、导致的破裂。一般来说,在在页岩和在场的易碎的矿物质的体积的破裂开发之间有好关联。有高 TOC 或反常地高的压力的页岩开发得好破裂。页岩破裂开发也与全部的煤气的累积和免费煤气的体积显示出积极关联,即,页岩破裂越更好被开发,越 greater 煤气的累积并且因此越多更高煤气的生产。破裂为天然气和形成水提供迁居水管和累积空格,它为免费天然气的容量的增加是有利的。在页岩的更宽的破裂导致煤气的损失。在北美洲,从在页岩的高角度的破裂地区有页岩气体探索和高煤气的生产的高成功比率。在在四川盆的更低的古生代的海洋的器官的充满事的岩石中的好天然气表演或低收益制片人是仔细与在易碎的页岩的破裂开发的度有关。Wenlong Ding Chao Li Chunyan Li Changchun Xu Kai Jiu Weite Zeng Liming Wu 2012Geoscience Frontiers2012,3,1:32
10Case-based learning in education of Traditional Chinese Medicine: a systematic review显示文摘OBJECTIVE:To assess the effect of case-based learning(CBL)in the education of Traditional Chinese Medicine(TCM).METHODS:The studies concerning TCM courses designed with CBL were included by searching the databases of EBSCO,Pubmed,Science Citation Index,China National Knowledge Infrastructure,Chongqing VIP database.The valid data was extracted in accordance with the included criteria.The quality of the studies was assessed with Gemma Flores-Masteo.RESULTS:A total of 22 articles were retrieved that met the selection criteria:one was of high quality;two were of low quality;the rest were categorized as moderate quality.The majority of the studiesdemonstrated the better effect produced by CBL,while a few studies showed no difference,compared with the didactic format.All included studies confirmed the favorable effect on learners'attitude,skills and ability.CONCLUSION:CBL showed the desirable results in achieving the goal of learning.Compared to didactic approach,it played a more active role in promoting students'competency.Since the quality of the articles on which the study was based was not so high,the findings still need further research to become substantiated.Ji Chen Ying Li Yong Tang Fang Zeng Xi Wu Fanrong Liang 2013Journal of Traditional Chinese Medicine2013,33,5:30
11Chinese Multidisciplinary Expert Consensus on the Diagnosis and Treatment of Hyperuricemia and Related Diseases显示文摘Zou, He-Jian Wu, Hu-Sheng Zhou, Jing-Guo Zeng, Xue-Jun Dai, Lie Wu, Hua-Xiang Zhu, Xiao-Xia Mei, Chang-Lin Hao, Chuan-Ming Chen, Nan Liu, Bi-Cheng Chen, Jiang-Hua Yang, Li Nie, Jing Yu, Chen Peng, Ai Yu, Sheng-Qiang Li, Lin Ge, Jun-Bo Huo, Yong Zhang, Shu-Yang Chen, Yun-Dai Dong, Yu-Gang Liang, Chun Dai, Yu-Xiang Gao, Xin Li, Chang-Gui Zhao, Jia-Jun Chen, Hai-Bing Cheng, Zhi-Feng Lin, Huan-Dong Guan, Yang-Tai Wang, Kai Luo, Ben-Yan Dai, Ruo-Lian Jiang, Quan Xue, Luan Liang, Chao-Chao Chen, Ming Fan, Song 2017Chinese Medical Journal2017,,20:30
12Production of proinflammatory cytokines in the human THP-1 monocyte cell line following induction by Tp0751,a recombinant protein of Treponema pallidum显示文摘The tissue destruction characteristic of syphilis infection may be caused by inflammation due to Treponema pallidum and the ensuing immune responses to the pathogen.T.pallidum membrane proteins are thought to be potent inducers of inflammation during the early stages of infection.However,the actual membrane proteins that induce inflammatory cytokine production are not known,nor are the molecular mechanisms responsible for triggering and sustaining the inflammatory cascades.In the present study,Tp0751 recombinant protein from T.pallidum was found to induce the production of proinflammatory cytokines,including TNF-α,IL-1βand IL-6,in a THP-1 human monocyte cell line.The signal transduction pathways involved in the production of these cytokines were then further investigated.No inhibition of TNF-a,IL-1β,or IL-6 production was observed following treatment with the SAPK/JNK specific inhibitor SP600125 or with an ERK inhibitor PD98059.By contrast,anti-TLR2 mAb,anti-CD14 mAb,and the p38 inhibitor SB203580 significantly inhibited the production of all three cytokines.In addition,pyrrolidine dithiocarbamate (PDTC),a specific inhibitor of NF-κB,profoundly inhibited the production of these cytokines.Tp0751 treatment strongly activated NF-κB,as revealed by Western blotting.However,NF-κB translocation was significantly inhibited by treatment with PDTC.These results indicated that TLR2,CD14,MAPKs/p38,and NF-κB might be implicated in the inflammatory reaction caused by T.pallidum infection.LIU ShuangQuan1,2,WANG ShiPing1,WU YiMou3,ZHAO FeiJun3,ZENG TieBing3,ZHANG YueJun3,ZHANG QiuGui2 & GAO DongMei1 1 Department of Parasitology,Xiangya School of Medicine,Central South University,Changsha 410078 ,China 2 The First Affiliated Hospital,University of South China,Hengyan 421001,China 3 Department of Microbiology and Immunology,University of South China,Hengyan 421001,China 2010Science China(Life Sciences)2010,53,2:28
13Hepatic venous outflow reconstruction in adult right lobe living donor liver transplantation without middle hepatic vein显示文摘背景重建困难、挑战性在没有中间的肝的静脉(MHV ) 的成年正确脑叶生活施主肝移植(LDLT ) 的肝的静脉的流出。门静脉和静脉的流出阻塞的过多的灌注将导致接枝的尖锐拥挤,最终导致主要 nonfunction。尽管各种各样的重建模式在许多国家被探索了,当前没有清楚的一致。在这研究,我们描述一种技术没有 MHV.Methods A ,用正确脑叶接枝在 LDLT 与劣等的静脉 cava ( IVC )在流出吻合阻止接枝的“ chocking ”回顾的分析从没有 MHV ,用正确脑叶接枝经历 LDLT 的 55 个接受者在临床的数据上被进行或肝的静脉的流出的重建。施主的恰好肝的静脉(RHV ) 与接受者 IVC 的三角形的开始被吻合;劣等的恰好肝的静脉(IRHV ) 足够大,直接被吻合到 IVC。大 saphenous 静脉(GSV ) 被用于重要 MHV tributaries.Results 的重建没有死亡发生在任何施主。55 个接受者,复杂并发症发生在 6,包括 hepaticvein 苛评(1 个盒子) , small-for-size 症候群(1 ) ,肝的动脉血栓(1 ) ,肠的流血(1 ) ,胆汁漏(1 )(1 ) ,左 subphrenic 脓肿和肺的感染。三个病人的一个总数死了,从 small-for-size 症候群的并且二从多重系统机关 failure.Conclusions,多重洞的垂直吻合与肝的静脉流出被重建。这种技术减轻生活施主的外科的风险,保证优秀静脉的排水,并且阻止脉管的 thromboses 和主要 nonfunction。WU Hong YANG Jia-yin YAN Lü-nan LI Bo ZENG Yong WEN Tian-fu ZHAO Ji-chun WANG Wen-tao XU Ming-qing LU Qiang CHEN Zhe-yu MA Yu-kui LI Jin 2007Chinese Medical Journal2007,,11:27
14MicroRNA-221 inhibits CDKNIC/p57 expression in human colorectal carcinoma显示文摘Kai SUN Wei WANG Jun-jie ZENG Cheng-tang WU Shang-tong LEI Guo-xin LI 2011Acta Pharmacologica Sinica2011,32,3:27
15Layered double hydroxide coatings on magnesium alloys: A review显示文摘Layered double hydroxides(LDHs) as a class of anionic clays have extensive applications due to their unique structures. Nowadays, the emphasis is laid on the development of LDH coatings for corrosion resistance and medical applications. Thus, this review highlights synthetic methods of LDH coatings and LDH-based composite coatings on magnesium alloys. Special attention is focused on self-healing,biocompatible and self-cleaning LDH-based composite coatings on magnesium alloys.Lian Guo Wei Wu Yongfeng Zhou Fen Zhang Rongchang Zeng Jianmin Zeng 2018Journal of Materials Science & Technology2018,34,9:28
16Clinical effects and complications of TIPS for portal hypertension due to cirrhosis:A single center显示文摘AIM:To determine the clinical effects and complications of transjugular intrahepatic portosystemic shunt(TIPS)for portal hypertension due to cirrhosis.METHODS:Two hundred and eighty patients with portal hypertension due to cirrhosis who underwent TIPS were retrospectively evaluated.Portal trunk pressure was measured before and after surgery.The changes in hemodynamics and the condition of the stent were assessed by ultrasound and the esophageal and fundic veins observed endoscopically.RESULTS:The success rate of TIPS was 99.3%.The portal trunk pressure was 26.8±3.6 cmH2O after surgery and 46.5±3.4 cmH2O before surgery(P<0.01).The velocity of blood flow in the portal vein increased.The internal diameters of the portal and splenic veins were reduced.The short-term hemostasis rate was100%.Esophageal varices disappeared completely in68%of patients and were obviously reduced in 32%.Varices of the stomach fundus disappeared completely in 80%and were obviously reduced in 20%of patients.Ascites disappeared in 62%,were markedly reduced in 24%,but were still apparent in 14%of patients.The total effective rate of ascites reduction was 86%.Hydrothorax completely disappeared in 100%of patients.The incidence of post-operative stent stenosis was 24%at 12 mo and 34%at 24 mo.The incidence of post-operative hepatic encephalopathy was 12%at3 mo,17%at 6 mo and 19%at 12 mo.The incidence of post-operative recurrent hemorrhage was 9%at 12mo,19%at 24 mo and 35%at 36 mo.The cumulative survival rate was 86%at 12 mo,81%at 24 mo,75%at 36 mo,57%at 48 mo and 45%at 60 mo.CONCLUSION:TIPS can effectively lower portal hypertension due to cirrhosis.It is significantly effective for hemorrhage of the digestive tract due to rupture of esophageal and fundic veins and for ascites and hydrothorax caused by portal hypertension.Jian-Ping Qin Ming-De Jiang Wen Tang Xiao-Ling Wu Xin Yao Wei-Zheng Zeng Hui Xu Qian-Wen He Ming Gu 2013World Journal of Gastroenterology2013,19,44:25
17Impact of urban expansion on regional temperature change in the Yangtze River Delta显示文摘从 1992 ~ 2003 基于 non-radiance-calibrated DMSP/OLS 夜间光形象,城市的陆地区域统计数据,气象学的数据;陆地地面温度数据由 MODIS 检索了;NOAA/AVHRR 数据,在长江三角洲(YRD ) 的温度的地区性的气候的趋势上的都市化的影响被分析。结论如下:1 ) 在 YRD 从 1992 ~ 2003 有一个重要都市化过程。Nanjing-Zhenjiang-Yangzhou 的四城市簇, Suzhou-Wuxi-Changzhou,上海;Hangzhou 海湾形成一条之字形城市带。在城市带的年平均气温的增加率是从 1991 ~ 2005 的 0.28 0.44 ° C /10a,它比 non-city-belt 的远大。2 ) 在不同季节的地区性的吝啬的气温上的城市的热岛(UHI ) 效果是 summer>autumn>spring>winter。3 ) UHI 紧张;城市的全部的人口对数美满地被相关。4 ) 成为地区性的年平均气温的 UHI 效果从 1961 ~ 2005 增加了 0.072 ° C,它从 1991 ~ 2005 的 0.047 ° C,;年度最大的气温增加了 0.162 ° C,它从 1991 ~ 2005 的 0.083 ° C。所有这些显示当严肃的气候发信号,在从 1991 ~ 2005 的 YRD 的城市的扩大可以被考虑。DU Yin XIE Zhiqing ZENG Yan SHI Yafeng WU Jingang 2007Journal of Geographical Sciences2007,17,4:25
18Nitrogen and Phosphorus Runoff Losses from Orchard Soils in South China as Affected by Fertilization Depths and Rates显示文摘Fertilizers are heavily applied in orchards of the hilly and mountainous topography of South China and may increase nutrient loadings to receiving waters.A simple runoff collecting system was used to measure the effects of different fertilization treatments on total N and P concentrations of surface runoff in a Chinese chestnut (Castanea mollissima Blume) orchard in Dongyuan County,Guangdong Province,China.In such orchards,fertilizer was typically applied in two short furrows or pits on either side of each tree.Treatments included three application depths (surface,10cm and 20 cm),and three application rates (low,median and high).Results showed that 90.5% of the runoff water samples had a total N concentration higher than 0.35 mgL^(-1) and 54.2% had a total P concentration higher than 0.1 mgL^(-1).Fertilizer application at all depths and at all but the lowest rate significantly increased total N and P concentrations in runoff water.Fertilization with chemical compound fertilizer at a soil depth of 20cm produced significantly lower (P<0.05) total N concentration in runoff than both surface and 10-cm depth fertilization,and significantly lower (P<0.05) total P concentration in runoff than surface fertilization.Total N and P concentrations in runoff significantly increased with the application rate of organic fertilizers.With the exception of total P concentrations,which were not significantly different between the control and fertilization at a rate of 119 kg P ha-1 in organic form,all the other fertilization treatments produced significantly higher total N and total P concentrations in runoff than the control.A fertilization depth≥20cm and an application rate≤72 kg N ha^(-1) or 119 kg P ha^(-1) for compound organic fertilizer was suggested to substantially reduce N and P runoff losses from hillslope orchards and to protect receiving waters in South China.ZENG Shu-Cai SU Zhi-Yao CHEN Bei-Guang WU Qi-Tang OUYANG Ying 2008Pedosphere2008,18,1:25
19Review of the uncertainty analysis of groundwater numerical simulation显示文摘Groundwater system is a complex and open system, which is affected by natural conditions and human activities. Natural hydrological processes is conceptualized through relatively simple flow governing equations in groundwater models. Moreover, observation data is always limited in field hydrogeological conditions. Therefore, the predictive results of groundwater simulation often deviate from true values, which is attribute to the uncertainty of groundwater numerical simulation. According to the process of system simulation, the uncertainty sources of groundwater numerical simulation can be divided into model parameters, conceptual model and observation data uncertainties. In addition, the uncertainty stemmed from boundary conditions is sometimes refered as scenario uncertainty. In this paper, the origination and category of groundwater modeling uncertainty are analyzed. The recent progresses on the methods of groundwater modeling uncertainty analysis are reivewed. Furthermore, the researches on the comprehensive analysis of uncertainty sources, and the predictive uncertainty of model outputs are discussed. Finally, several prospects on the deveolpment of groundwater modeling uncetainty analysis are proposed.WU JiChun ZENG XianKui 2013Chinese Science Bulletin2013,58,25:24
20Exploration of the formation mechanism and source attribution of ambient ozone in Chongqing with an observation-based model显示文摘An intensive field campaign was conducted in Chongqing during the summer of 2015 to explore the formation mechanisms of ozone pollution. The sources of ozone, the local production rates, and the controlling factors, as well as key species of volatile organic compounds(VOCs), were quantified by integrating a local ozone budget analysis, calculations of the relative incremental reactivity, and an empirical kinetic model approach. It was found that the potential for rapid local ozone formation exists in Chongqing. During ozone pollution episodes, the ozone production rates were found to be high at the upwind station Nan Quan, the urban station Chao Zhan, and the downwind station Jin-Yun Shan. The average local ozone production rate was 30×10^(-9) V/V h^(-1) and the daily integration of the produced ozone was greater than 180×10^(-9) V/V. High ozone concentrations were associated with urban and downwind air masses. At most sites, the local ozone production was VOC-limited and the key species were aromatics and alkene, which originated mainly from vehicles and solvent usage. In addition, the air masses at the northwestern rural sites were NO_x-limited and the local ozone production rates were significantly higher during the pollution episodes due to the increased NOx concentrations. In summary, the ozone abatement strategies of Chongqing should be focused on the mitigation of VOCs. Nevertheless, a reduction in NO_x is also beneficial for reducing the regional ozone peak values in Chongqing and the surrounding areas.SU Rong LU KeDing YU JiaYan TAN ZhaoFeng JIANG MeiQing LI Jing XIE ShaoDong WU YuSheng ZENG LiMin ZHAI ChongZhi ZHANG YuanHang 2018Science China Earth Sciences2018,61,1:24
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