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| 1 | Time range of Mesozoic tectonic regime inversion in eastern North China Block显示文摘An important tectonic inversion took place in eastern North China Block(NCB) during Mesozoic, which caused a great lithosphere thinning, reconstruction of basin-range series, powerful interaction between mantle and crust, a vast granitic intrusion and volcanism, and large-scale metallogenic explosion. The time range of the Mesozoic tectonic regime inversion in the eastern North China Block is one of the key issues to understand mechanism of tectonic regime inversion. Our updated results for recognizing the time range are mainly obtained from the following aspects: structural analyses along northern and southern margins of the NCB and within the NCB for revealing tectonic inversion from compression to extension and structural striking from ~EW to NNE; geothermic analyses of the eastern sedimental basins for a great change of thermal history and regime; basin analysis for basin inversion from compression to extension and basin migration from ~EW to NNE; petrological and geochemical studies of volcanic rocks and lowermost crust xenoliths for recognizing peak period of mantle upwelling and intense interaction between mantle and crust, and main metallogenic epoch. All the studies of the above give the same time range from~150-140 Ma to ~110-100Ma, peaking at ~120 Ma. | ZHAI Mingguo ZHU Rixiang LIU Jianming MENG Qingren HOU Quanlin HU Shengbiao LIU Wei LI Zhong ZHANG Hongfu ZHANG Huafeng | 2004 | Science China Earth Sciences2004,47,2: | 89 |
| 2 | Evolution of the novel coronavirus from the ongoing Wuhan outbreak and modeling of its spike protein for risk of human transmission显示文摘Dear Editor,The occurrence of concentrated pneumonia cases in Wuhan city,Hubei province of China was first reported on December 30,2019 by the Wuhan Municipal Health Commission(WHO,2020).The pneumonia cases were found to be linked to a large seafood and animal market in Wuhan,and measures for sanitation and disinfection were taken swiftly by the local government agency.The Centers for Disease Control and Prevention(CDC)and Chinese health authorities later determined and announced that a novel coronavirus(CoV),denoted as 2019-nCoV,had caused the pneumonia outbreak in Wuhan city(CDC,2020).Scientists from multiple groups had obtained the virus samples from hospitalized patients(Normile,2020).The isolated viruses were morphologically identical when observed under electron microscopy. | Xintian Xu Ping Chen Jingfang Wang Jiannan Feng Hui Zhou Xuan Li Wu Zhong Pei Hao | 2020 | Science China(Life Sciences)2020,63,3: | 737 |
| 3 | Clinical characteristics of novel coronavirus cases in tertiary hospitals in Hubei Province显示文摘Background:The 2019 novel coronavirus(2019-nCoV)causing an outbreak of pneumonia in Wuhan,Hubei province of China was isolated in January 2020.This study aims to investigate its epidemiologic history,and analyze the clinical characteristics,treatment regimens,and prognosis of patients infected with 2019-nCoV during this outbreak.Methods:Clinical data from 1372019-nCoV-infected patients admitted to the respiratory departments of nine tertiary hospitals in Hubei province from December 30,2019 to January 24,2020 were retrospectively collected,including general status,clinical manifestations,laboratory test results,imaging characteristics,and treatment regimens.Results:None of the 137 patients(61 males,76 females,aged 20-83 years,median age 57 years)had a definite history of exposure to Huanan Seafood Wholesale Market.Major initial symptoms included fever(112/137,81.8%),coughing(66/137,48.2%),and muscle pain or fatigue(44/137,32.1%),with other,less typical initial symptoms observed at low frequency,including heart palpitations,diarrhea,and headache.Nearly 80%of the patients had normal or decreased white blood cell counts,and 72.3%(99/137)had lymphocytopenia.Lung involvement was present in all cases,with most chest computed tomography scans showing lesions in multiple lung lobes,some of which were dense;ground-glass opacity co-existed with consolidation shadows or cord-like shadows.Given the lack of effective drugs,treatment focused on symptomatic and respiratory support.Immunoglobulin G was delivered to some critically ill patients according to their conditions.Systemic corticosteroid treatment did not show significant benefits.Notably,early respiratory support facilitated disease recovery and improved prognosis.The risk of death was primarily associated with age,underlying chronic diseases,and median interval from the appearance of initial symptoms to dyspnea.Conclusions:The majority of patients with 2019-nCoV pneumonia present with fever as the first symptom,and most of them still showed typical manifestations of viral pneumonia on chest imaging.Middle-aged and elderly patients with underlying comorbidities are susceptible to respiratory failure and may have a poorer prognosis. | Kui Liu Yuan-Yuan Fang Yan Deng Wei Liu Mei-Fang Wang Jing-Ping Ma Wei Xiao Ying-Nan Wang Min-Hua Zhong Cheng-Hong Li Guang-Cai Li Hui-Guo Liu | 2020 | Chinese Medical Journal2020,,9: | 100 |
| 4 | High expression of ACE2 receptor of 2019-nCoV on the epithelial cells of oral mucosa显示文摘It has been reported that ACE2 is the main host cell receptor of 2019-nCoV and plays a crucial role in the entry of virus into the cell to cause the final infection. To investigate the potential route of 2019-n Cov infection on the mucosa of oral cavity, bulk RNA-seq profiles from two public databases including The Cancer Genome Atlas(TCGA) and Functional Annotation of The Mammalian Genome Cap Analysis of Gene Expression(FANTOM5 CAGE) dataset were collected. RNA-seq profiling data of 13 organ types with para-carcinoma normal tissues from TCGA and 14 organ types with normal tissues from FANTOM5 CAGE were analyzed in order to explore and validate the expression of ACE2 on the mucosa of oral cavity. Further, single-cell transcriptomes from an independent data generated in-house were used to identify and confirm the ACE2-expressing cell composition and proportion in oral cavity. The results demonstrated that the ACE2 expressed on the mucosa of oral cavity. Interestingly, this receptor was highly enriched in epithelial cells of tongue. Preliminarily, those findings have explained the basic mechanism that the oral cavity is a potentially high risk for 2019-nCoV infectious susceptibility and provided a piece of evidence for the future prevention strategy in dental clinical practice as well as daily life. | Hao Xu Liang Zhong Jiaxin Deng Jiakuan Peng Hongxia Dan Xin Zeng Taiwen Li Qianming Chen | 2020 | International Journal of Oral Science2020,12,1: | 69 |
| 5 | Comparative Analysis of Codon Usage Patterns Among Mitochondrion, Chloroplast and Nuclear Genes显示文摘 | Wen-Juan Zhang Jie Zhou Zuo-Feng Li Li Wang Xun Gu Yang Zhong | 2007 | Journal of Integrative Plant Biology2007,49,2: | 55 |
| 6 | Fast increasing of surface ozone concentrations in Pearl River Delta characterized by a regional air quality monitoring network during 2006–2011显示文摘Based on the observation by a Regional Air Quality Monitoring Network including 16 monitoring stations, temporal and spatial variations of ozone(O3), NO2and total oxidant(Ox) were analyzed by both linear regression and cluster analysis. A fast increase of regional O3concentrations of 0.86 ppbV/yr was found for the annual averaged values from 2006 to 2011 in Guangdong, China. Such fast O3increase is accompanied by a correspondingly fast NOx reduction as indicated by a fast NO2 reduction rate of 0.61 ppbV/yr. Based on a cluster analysis, the monitoring stations were classified into two major categories – rural stations(non-urban) and suburban/urban stations. The O3concentrations at rural stations were relatively conserved while those at suburban/urban stations showed a fast increase rate of 2.0 ppbV/yr accompanied by a NO2 reduction rate of 1.2 ppbV/yr. Moreover, a rapid increase of the averaged O3 concentrations in springtime(13%/yr referred to 2006 level) was observed, which may result from the increase of solar duration, reduction of precipitation in Guangdong and transport from Eastern Central China. Application of smog production algorithm showed that the photochemical O3production is mainly volatile organic compounds(VOC)-controlled. However, the photochemical O3production is sensitive to both NOx and VOC for O3pollution episode. Accordingly, it is expected that a combined NOx and VOC reduction will be helpful for the reduction of the O3 pollution episodes in Pearl River Delta while stringent VOC emission control is in general required for the regional O3 pollution control. | Jinfeng Li Keding Lu Wei Lv Jun Li Liuju Zhong Yubo Ou Duohong Chen Xin Huang Yuanhang Zhang | 2014 | Journal of Environmental Sciences2014,26,1: | 51 |
| 7 | Mobius Isoparametric Hypersurfaces in S^(n+1) with Two Distinct Principal Curvatures | Hai Zhong LI Department of Mathematics, Tsinghua University. Beijing 100084. P. R. China Hui Li LIU Department of Mathematics, Northeastern University. Shenyang 110000. P. R. China Chang Ping WANG Key Laboratory of Pure and Applied Mathematics, School of Mathematical Sciences. Peking University, Beijing 100871, P. R. China Guo Song ZHAO Department of Mathematics, Sichuan University, Chengdu 610064. P. R. China | 2002 | Acta Mathematica Sinica,English Series2002,18,3: | 53 |
| 8 | Wenchuan earthquake:Brightness temperature changes from satellite infrared information显示文摘By using an alternative processing method for satellite infrared remote sensing data and adopting the China Geostationary Meteorological Satellite(FY-2C) infrared remote sensing brightness temperature data,we studied the great 2008 Wenchuan Ms8.0 earthquake.Results indicate the obvious characteristic period and amplitude,and distribution of thermal infrared anomalies before the Wenchuan earthquake.And we discussed the mechanism of the observed pre-earthquake thermal anomalies.The characteristics of observed thermal infrared anomalies are easy to be recognized and applied,and could provide a criterion for thermal anomalies of earthquakes. | ZHANG YuanSheng GUO Xiao ZHONG MeiJiao SHEN WenRong LI Wen HE Bin | 2010 | Chinese Science Bulletin2010,55,18: | 47 |
| 9 | Characteristics of hydrocarbon accumulation and exploration potential of the northern South China Sea deepwater basins显示文摘Although the huge potential of the northern South China Sea deepwater basins has been proven by a series of discoveries that followed the exploration breakthrough of well LW 3-1-1, recent drilling and other studies have demonstrated the uniqueness and complicated nature of hydrocarbon accumulations of the deepwater basins there. Based on a review of previous work and the latest exploration activities and studies, the purpose of this paper is to discuss the critical controls for hydrocarbon accumulations in the deepwater basins of the northern South China Sea. A terrestrial-marine transitional coal-bearing source rock is proposed to be the primary source rock for the deepwater basins. A marine source rock, which was first identified as contributing to hydro-carbon generation in this region, probably plays a significant role in the deep-and ultra-deep water basins south to the Pearl River Mouth and Qingdongnan basins. The shelf margin delta depositional systems in the Baiyun Sag, sourced from the Pearl River, are currently primary exploration targets in the deepwater part of the Pearl River Mouth Basin, whereas the western Red River delta-ic-submarine fan depositional systems, initially proven by drilling, are the possible major exploration reservoirs in the Qing-dongnan deepwater areas. Current deepwater exploration targets at the large-sized structural traps and deep and ultra-deep areas in the south of the Pearl River Mouth and Qingdongnan basins will be the future exploration focus. Deepwater exploration activities and relevant fundamental studies, supporting and promoting each other, are of great importance to the national energy supply of China, the basic regional studies of the South China Sea, advancements in technology, and development of related deepwater industries, and will safeguard national sovereignty and territorial integrity. | ZHU WeiLin ZHONG Kai LI YouChuan XU Qiang FANG DianYong | 2012 | Chinese Science Bulletin2012,57,24: | 48 |
| 10 | Comparing the Diagnostic Criteria for Gestational Diabetes Mellitus of World Health Organization 2013 with 1999 in Chinese Population显示文摘INTRODUCTION Gestational diabetes mellitus (GDM) was earlier defined as 'hyperglycemia first recognized during pregnancy' and has more recently been described by American Diabetes Association (ADA) (2012) as diabetes diagnosed during pregnancy that is not clearly overt diabetes.[1] The hyperglycemia and adverse pregnancy outcomes study (HAPO) demonstrated that the risk of adverse maternal,fetal,and neonatal outcomes continuously increase as a function of maternal glycemia at 24-28 weeks,even within ranges previously considered normal for pregnancy.[2] After reviewing the results of the HAPO study,many international diabetes study groups,including the International Association of Diabetes and Pregnancy Study Groups and ADA have adopted the 75 g oral glucose tolerance test (OGTT) at 24-28 weeks as a screening and diagnostic test and defined new cut-off values for GDM diagnosis.The Ministry of Health of China published the criteria for GDM,that is the same as the ADA criteria on July 1,2011.World Health Organization (WHO) has recommended the 75 g OGTT with different cut-offvalues as a diagnostic test since 1999,changed its recommendation on 2013.In Hongkong and Yunnan province in China,most hospital adopted the WHO 1999 criteria,nevertheless,there is no evidence of multicenter and large sample to show that the GDM population within the same ethnic group diagnosed by the new WHO criteria matches those diagnosed by the old one and consistency between the two criteria has not been reported.Thus,we conducted this study to analyze the two criteria in Chinese pregnant women. | Weiwei Zhu Huixia Yang Yumei Wei Zilian Wang Xuelan Li Hairong Wu Nan Li Meihua Zhang Xinghui Liu Hua Zhang Yunhui Wang Jianmin Niu Yujie Gan Liruo Zhong Yunfeng Wang Anil Kapur | 2015 | Chinese Medical Journal2015,,1: | 42 |
| 11 | Changes in the level of serum liver enzymes after laparoscopic surgery显示文摘AIM: The purpose of this study was to investigate the effectof laparoscopic surgery on liver function in humans and thepossible mechanisms behind such effect.METHODS: Blood samples from 286 patients whounderwent laparoscopic cholecystectomy (LC) and 40patients who underwent open cholecystectomy (OC) weretested for liver function by measuring the level of serumalanine aminotrasferase (ALT) and aspartate aminotrasferase(AST) before and after the operations. The same tests werealso applied to 18 laparoscopic colorectal cancer resection(LCR) patients and 23 open colorectal cancer resection (OCR)patients to determine whether CO2 pneumoperitoneum couldalter the serum liver enzymes.RESULTS: The level of serum ALT and AST increasedsignificantly during the first 48 hours post operations in bothLC and LCR patients. However, no significant change of theserum liver enzymes was detected in both OC and OCRpatients. As a result, there was statistically significantdifference in change of both ALT and AST levels betweenLC and OC patients and LCR and OCR patients, respectively.By the 7th day post operation, the level of both enzymesreturned to normal values in LC, OC and OCR patients exceptLCR patients whose enzymes remained at a higher level.CONCLUSION: Transient elevation of hepatic transaminasesoccurred after laparoscopic surgery. The major causativefactor seemed to be the CO2 pneumoperitoneum. In mostof the laparoscopic surgery patients, the transient elevationof serum liver enzymes showed no apparent clinicalimplications. However, if preoperative liver function was verypoor, laparoscopic surgery may not be the best choice forthe treatment of patients with certain abdominal diseases. | Min Tan Feng-Feng Xu Jun-Shen Peng Dong-Ming Li Liu-Hua Chen Bao-Jun Lv Zhen-Xian Zhao Chen Huang Chao-Xu Zheng Department of General Surgery, the First Affiliated Hospital of Zhong Shah University, 58 Zhongshan 2 Road Guangzhou 510080, Guangdong Province China | 2003 | World Journal of Gastroenterology2003,9,2: | 42 |
| 12 | Clinicopathological and prognostic analysis of 429 patients with intrahepatic cholangiocarcinoma显示文摘AIM:To understand the clinicopathological characteristics and treatment selections and improve survival and provide valuable information for patients with intrahepatic cholangiocarcinoma(ICC). METHODS:We retrospectively evaluated 5311 liver cancer patients who received resection between October 1999 and December 2003.Of these,429(8.1%)patients were diagnosed with ICC,and their clinicopathological, surgical,and survival characteristics were analyzed. RESULTS:Upper abdominal discomfort or pain(65.0%), no symptoms(12.1%),and hypodynamia(8.2%)were the major causes for medical attention.Laboratory tests showed 198(46.4%)patients were HBsAg positive, 90(21.3%)hadα-fetoprotein>20μg/L,50(11.9%) carcinoembryonic antigen>10μg/L,and 242(57.5%) carbohydrate antigen 19-9(CA19-9)>37 U/mL.Survival data was available for 329(76.7%)patients and their mean survival time was 12.4 mo.The overall survival of the patients with R0,R1 resection and punching exploration were 18.3,6.6 and 5.6 mo,respectively. Additionally,CA19-9>37 U/mL was associated with lymph node metastases,but inversely associated withcirrhosis.Multivariate analysis indicated that radical resection,lymph node metastases,macroscopic tumor thrombi and size,and CA19-9 were associated with prognosis. CONCLUSION:Surgical radical resection is still the most effective means to cure ICC.Certain laboratory tests(such as CA19-9)can effectively predict the survival of the patients with ICC. | Wei-Feng Shen Wei Zhong Feng Xu Tong Kan Li Geng Feng Xie Cheng-Jun Sui Jia-Mei Yang | 2009 | World Journal of Gastroenterology2009,15,47: | 39 |
| 13 | Significance of dredging on sediment denitrification in Meiliang Bay,China:A year long simulation study显示文摘An experiment for studying the effects of sediment dredging on denitrification in sediments was carried out through a one-year incubation of undredged (control) and dredged cores in laboratory. Dredging the upper 30 cm of sediment can significantly affect physico-chemical characteristics of sediments. Less degradation of organic matter in the dredged sediments was found during the experiment. Denitrification rates in the sediments were estimated by the acetylene blockage technique, and ranged from 21.6 to 102.7 nmol N2/(g dry weight (dw)·hr) for the undredged sediment and from 6.9 to 26.9 nmol N2/(g dw·hr) for dredged sediments. The denitrification rates in the undredged sediments were markedly higher (p<0.05) than those in the dredged sediments throughout the incubation, with the exception of February 2006. The importance of various environmental factors on denitrification was assessed, which indicated that denitrification was regulated by temperature. Nitrate was probably the key factor limiting denitrification in both undredged and dredged sediments. Organic carbon played some role in determining the denitrification rates in the dredged sediments, but not in the undredged sediments. Sediment dredging influenced the mineralization of organic matter and denitrification in the sediment; and therefore changed the pattern of inherent cycling of nitrogen. | Jicheng Zhong Chengxin Fan Lu Zhang Edward Hall Shiming Ding Bao Li Guofeng Liu | 2010 | Journal of Environmental Sciences2010,22,1: | 40 |
| 14 | New vacuum solar telescope and observations with high resolution显示文摘The New Vacuum Solar Telescope(NVST) is a one meter vacuum solar telescope that aims to observe fine structures on the Sun. The main goals of NVST are high resolution imaging and spectral observations, including measurements of the solar magnetic field. NVST is the primary ground-based facility used by the Chinese solar research community in this solar cycle. It is located by Fuxian Lake in southwest China, where the seeing is good enough to perform high resolution observations. We first introduce the general conditions at the Fuxian Solar Observatory and the primary science cases of NVST. Then, the basic structures of this telescope and instruments are described in detail. Finally, some typical high resolution data of the solar photosphere and chromosphere are also shown. | Zhong Liu Jun Xu Bo-Zhong Gu Sen Wang Jian-Qi You Long-Xiang Shen Ru-Wei Lu Zhen-Yu Jin Lin-Fei Chen Ke Lou Zhi Li Guang-Qian Liu Zhi Xu Chang-Hui Rao Qi-Qian Hu Ru-Feng Li Hao-Wen Fu Feng Wang Men-Xian Bao Ming-Chan Wu Bo-Rong Zhang | 2014 | Research in Astronomy and Astrophysics2014,14,6: | 37 |
| 15 | A 4-bp Insertion at ZmPLA 1 Encoding a Putative Phospholipase A Generates Haploid Induction in Maize显示文摘 | Chenxu Liu Xiang Li Dexuan Meng Yu Zhong Chen Chen Xin Dong Xiaowei Xu Baojian Chen Wei Li Liang Li Xiaolong Tian Haiming Zhao Weibin Song Haishan Luo Qinghua Zhang Jinsheng Lai Weiwei Jin Jianbing Yan Shaojiang Chen | 2017 | Molecular Plant2017,10,3: | 39 |
| 16 | Achieving over 16% efficiency for single-junction organic solar cells显示文摘To achieve high photovoltaic performance of bulk hetero-junction organic solar cells(OSCs), a range of critical factors including absorption profiles, energy level alignment, charge carrier mobility and miscibility of donor and acceptor materials should be carefully considered. For electron-donating materials, the deep highest occupied molecular orbital(HOMO) energy level that is beneficial for high open-circuit voltage is much appreciated. However, a new issue in charge transfer emerges when matching such a donor with an acceptor that has a shallower HOMO energy level. More to this point, the chemical strategies used to enhance the absorption coefficient of acceptors may lead to increased molecular crystallinity, and thus result in less controllable phase-separation of photoactive layer. Therefore, to realize balanced photovoltaic parameters, the donor-acceptor combinations should simultaneously address the absorption spectra, energy levels, and film morphologies. Here, we selected two non-fullerene acceptors, namely BTPT-4F and BTPTT-4F, to match with a wide-bandgap polymer donor P2F-EHp consisting of an imidefunctionalized benzotriazole moiety, as these materials presented complementary absorption and well-matched energy levels. By delicately optimizing the blend film morphology, we demonstrated an unprecedented power conversion efficiency of over 16% for the device based on P2F-EHp:BTPTT-4F, suggesting the great promise of materials matching toward high-performance OSCs. | Baobing Fan Difei Zhang Meijing Li Wenkai Zhong Zhaomiyi Zeng Lei Ying Fei Huang Yong Cao | 2019 | Science China Chemistry2019,62,6: | 38 |
| 17 | Review 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 | 2014 | Infectious Diseases of Poverty2014,3,1: | 35 |
| 18 | cMyc-mediated activation of serine biosynthesis pathway is critical for cancer progression under nutrient deprivation conditions显示文摘癌症房间被知道经历新陈代谢的 reprogramming 然而,支撑幸存和快速的增长 oncogenic 损害怎么在各种各样的强调条件下面协调新陈代谢的开关,尚待充分被阐明。这里,我们显示出葡萄糖或夫酸安的那剥夺,为癌症房间的二主要营养来源,被伴随由的戏剧性地激活的丝氨酸生合成小径(SSP ) 提高了 cMyc 表示。我们进一步鉴别那 cMyc 刺激了 SSP 激活由 transcriptionally 多重 SSP 酶的 upregulating 表示。而且,我们证明 cMyc 便于的 SSP 激活导致了提高的谷胱甘肽(GSH ) 生产,房间周期前进和 nucleic 酸合成,它在剥夺营养素的条件下面特别为房间幸存和增长是必要的。我们进一步揭开了那 phosphoserine 磷酸酶( PSPH ), SSP 小径的最后的限制率的酶,在 vitro 并且在 vivo 为 驾驶cMyc 的癌症前进是批评的,并且重要地, PSPH 的异常表示高度在 hepatocellular 与死亡被相关癌( HCC )病人,一般来说建议在这 调整cMyc 的酶,或 SSP 激活之间的一种潜在的原因的关系,并且癌症开发。一起拿,我们的结果表明 cMyc 的那异常表情导致提高的 SSP 激活,新陈代谢的开关的必要部分,在剥夺营养素的条件下面便于癌症前进。 | Linchong Sun Libing Song Qianfen Wan Gongwei Wu Xinghua Li Yinghui Wang Jin Wang Zhaoji Liu Xiuying Zhong Xiaoping He Shengqi Shen Xin Pan Ailing Li Yulan Wang Ping Gao Huiru Tang Huafeng Zhang | 2015 | Cell Research2015,25,4: | 33 |
| 19 | Prediction of undrained shear strength using extreme gradient boosting and random forest based on Bayesian optimization显示文摘Accurate assessment of undrained shear strength(USS)for soft sensitive clays is a great concern in geotechnical engineering practice.This study applies novel data-driven extreme gradient boosting(XGBoost)and random forest(RF)ensemble learning methods for capturing the relationships between the USS and various basic soil parameters.Based on the soil data sets from TC304 database,a general approach is developed to predict the USS of soft clays using the two machine learning methods above,where five feature variables including the preconsolidation stress(PS),vertical effective stress(VES),liquid limit(LL),plastic limit(PL)and natural water content(W)are adopted.To reduce the dependence on the rule of thumb and inefficient brute-force search,the Bayesian optimization method is applied to determine the appropriate model hyper-parameters of both XGBoost and RF.The developed models are comprehensively compared with three comparison machine learning methods and two transformation models with respect to predictive accuracy and robustness under 5-fold cross-validation(CV).It is shown that XGBoost-based and RF-based methods outperform these approaches.Besides,the XGBoostbased model provides feature importance ranks,which makes it a promising tool in the prediction of geotechnical parameters and enhances the interpretability of model. | Wengang Zhang Chongzhi Wu Haiyi Zhong Yongqin Li Lin Wang | 2021 | Geoscience Frontiers2021,12,1: | 33 |
| 20 | Laparoscopic total mesorectal excision of low rectal cancer with preservation of anal sphincter:A report of 82 cases显示文摘AIM: To assess the feasibility and efficacy of laparoscopic total mesorectal excision (LTME) of low rectal cancer with preservation of anal sphincter.METHODS: From June 2001 to June 2003, 82 patients with low rectal cancer underwent laparoscopic total mesorectal excision with preservation of anal sphincter. The lowest edge of tumors was below peritoneal reflection and 1.5-7 cm from the dentate line (1.5-5 cm in 48 cases, 5-7 cm in 34 cases).RESULTS: LTME with anal sphincter preservation was performed on 82 randomized patients with low rectal cancer, and 100 % sphincter preservation rate was achieved. There were 30 patients with laparoscopic low anterior resection (LLAR) at the level of the anastomosis below peritoneal reflection and 2 cm above from the dentate line; 27 patients with laparoscopic ultralow anterior resection (LULAR) at the level of anastomoses 2 cm below from the dentate line; and 25 patients with laparoscopic coloanal anastomoses (LC AA) at the level of the anastomoses at or below the dentate line. No defunctioning ileostomy was created in any case. The mean operating time was 120 minutes (ranged from 110-220 min), and the mean operative blood loss was 20 mL (ranged from 5-120 mL).Bowel function was restored and diet was resumed on day 1 or 2 after operation. The mean hospital stay was 8 days (ranged from 5-14). Postoperative analgesics were used in 45 patients. After surgery, 2 patients had urinary retention, one had anastomotic leakage, and another 2patients had local recurrence one year later. No interoperative complication was observed.CONCLUSION: LTME with preservation of anal sphincter is a feasible, safe and minimally invasive technique with less postoperative pain and rapid recovery, and importantly, it has preserved the function of the sphincter. | Zong-Guang Zhou Zhao Wang Yong-Yang Yu Ye Shu Zhong Cheng Li Li Wen-Zhang Lei Tian-Cai Wang Department of General Surgery and Institute of Digestive Surgery,West China Hospital,Sichuan University,Chengdu 610041,Sichuan Province,China | 2003 | World Journal of Gastroenterology2003,9,7: | 33 |