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506篇 您的检索式:作者名="ZENG Bo"
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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
2Nitric 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
3Indicators of prognosis after liver transplantation in Chinese hepatocellular carcinoma patients显示文摘AIM: To identify prognostic factors of patients with hepatocellular carcinoma (HCC), who were treated by orthotopic liver transplantation (OLT). METHODS: From January 2000 to October 2006, 165 patients with HCC underwent OLT. Various clinicopathological risk factors for actuarial and recurrence-free survival were identified using the Kaplan-Meier method with the log-rank test. The Cox proportional hazards model was used to identify independently predictive factors for actuarial and recurrence-free survival, which were used to propose new selection criteria. We compared the outcome of the subgroup patients meeting different criteria. Survival analysis was performed using the Kaplan-Meier method with the log-rank test. RESULTS: The median follow-up was 13.0 mo (2.8-69.5 mo). Overall, 1-, 2-, 3-and 5-year actuarial survival was 73.3%, 45.6%, 35.4% and 32.1%, respectively. One-, 2-, 3-and 5-year overall recurrencefree survival was 67.0%, 44.3%, 34.5% and 34.5%, respectively. In univariate analysis, number of tumors, total tumor size, lobar distribution, differentiation, macrovascular invasion, microvascular invasion, capsulationof the tumor, and lymph node metastasis were found to be associated significantly with actuarial and tumor-free survival. By means of using the multivariate Cox proportional hazards model, total tumor size and macrovas-cular invasion were found to be independent predictors of actuarial and tumor-free survival. When the selection criteria were expanded into the proposed criteria, there was no significant difference in 1-, 2-, 3-and 5-year actuarial and tumor-free survival of the 49 patients who met the proposed criteria (97.6%, 82.8%, 82.8% and 82.8%, and 90.7%, 82.8%, 68.8% and 68.8%, respectively) compared with that of patients who met the Milan or University of California, San Francisco (UCSF) criteria. CONCLUSION: Macrovascular invasion and total tumor diameter are the strongest prognostic factors. The proposed criteria do not adversely affect the outcome of liver transplantation for HCC, compared with the Milan or UCSF criteria.Jin Li Lu-Nan Yan Jan Yang Zhe-Yu Chen Bo Li Yong Zeng Tian-Fu Wen Ji-Chun Zhao Wen-Tao Wang Jia-Yin Yang Ming-Qing Xu Yu-Kui Ma 2009World Journal of Gastroenterology2009,15,33:37
4Chinese 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
5Review 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
6Hepatic 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
7Breast cancer development and progression:Risk factors,cancer stem cells,signaling pathways,genomics,and molecular pathogenesis显示文摘As the most commonly occurring cancer in women worldwide,breast cancer poses a formidable public health challenge on a global scale.Breast cancer consists of a group of biologically and molecularly heterogeneous diseases originated from the breast.While the risk factors associated with this cancer varies with respect to other cancers,genetic predisposition,most notably mutations in BRCA1 or BRCA2 gene,is an important causative factor for this malignancy.Breast cancers can begin in different areas of the breast,such as the ducts,the lobules,or the tissue in between.Within the large group of diverse breast carcinomas,there are various denoted types of breast cancer based on their invasiveness relative to the primary tumor sites.It is important to distinguish between the various subtypes because they have different prognoses and treatment implications.As there are remarkable parallels between normal development and breast cancer progression at the molecular level,it has been postulated that breast cancer may be derived from mammary cancer stem cells.Normal breast development and mammary stem cells are regulated by several signaling pathways,such as estrogen receptors(ERs),HER2,and Wnt/b-catenin signaling pathways,which control stem cell proliferation,cell death,cell differentiation,and cell motility.Furthermore,emerging evidence indicates that epigenetic regulations and noncoding RNAs may play important roles in breast cancer development and may contribute to the heterogeneity and metastatic aspects of breast cancer,especially for triple-negative breast cancer.This review provides a comprehensive survey of the molecular,cellular and genetic aspects of breast cancer.Yixiao Feng Mia Spezia Shifeng Huang Chengfu Yuan Zongyue Zeng Linghuan Zhang Xiaojuan Ji Wei Liu Bo Huang Wenping Luo Bo Liu Yan Lei Scott Du Akhila Vuppalapati Hue H.Luu Rex C.Haydon Tong-Chuan He Guosheng Ren 2018Genes & Diseases2018,5,2:24
8A Pilot Study of the Therapeutic Efficacy and Mechanism of Artesunate in the MRL/lpr Murine Model of Systemic Lupus Erythematosus显示文摘Recent evidence indicates that artesunate has immunomodulatory properties that might be useful for treating autoimmune disease.In this study,we conducted a pilot study and explored the effect and mechanism of artesunate on the treatment of systemic lupus erythematosus using an MRL/lpr murine model.MRL/lpr mice were divided into control,cyclophosphamide(CTX)and artesunate treatment groups.Blood was collected to measure serum levels of creatinine,antinuclear antibody(ANA)and anti-double-stranded DNA(anti-dsDNA)antibody.Twenty-four-hour urine was collected to measure levels of proteinuria.The concentration of monocyte chemotactic protein-1(MCP-1)in serum and urine was measured.The expression of MCP-1 in kidney was detected by Western blot and immunohistochemistry assay,respectively.The expression of B cell activating factor(BAFF)in spleen was determined by real time-PCR and immunoblotting.We found that artesunate significantly increased the survival rate,body weight and blood leukocyte counts,and reduced the serum levels of ANA and anti-dsDNA antibody titer,24 h urinary protein,and serum creatinine.Our results indicated that artesunate could decrease MCP-1,major pro-inflammation cytokine,in serum,urine and kidney.We also found that the level of BAFF,the major B cell activation factor,was decreased in artesunate treated MRL/lpr mice.Its efficacy was comparable with that of CTX in this study.Taken together,we have demonstrated that artesunate can inhibit the progression of disease and reverse the pathologic lesion of lupus nephritis.Ouyang Jin Huayong Zhang Zhifeng Gu Shengnan Zhao Ting Xu Kangxing Zhou Bo Jiang Jie Wang Xiaofeng Zeng Lingyun Sun 2009Cellular & Molecular Immunology2009,6,6:20
9Prediction model of interval grey number based on DGM(1,1)显示文摘In grey system theory,the studies in the field of grey prediction model are focused on real number sequences,rather than grey number ones.Hereby,a prediction model based on interval grey number sequences is proposed.By mining the geometric features of interval grey number sequences on a two-dimensional surface,all the interval grey numbers are converted into real numbers by means of certain algorithm,and then the prediction model is established based on those real number sequences.The entire process avoids the algebraic operations of grey number,and the prediction problem of interval grey number is usefully solved.Ultimately,through an example's program simulation,the validity and practicability of this novel model are verified.Bo Zeng Sifeng Liu Naiming Xie 2010Journal of Systems Engineering and Electronics2010,21,4:19
10YAP promotes osteogenesis and suppresses adipogenic differentiation by regulatingβ-catenin signaling显示文摘YAP(yes-associated protein) is a transcriptional factor that is negatively regulated by Hippo pathway, a conserved pathway for the development and size control of multiple organs. The exact function of YAP in bone homeostasis remains controversial. Here we provide evidence for YAP's function in promoting osteogenesis, suppressing adipogenesis, and thus maintaining bone homeostasis.YAP is selectively expressed in osteoblast(OB)-lineage cells. Conditionally knocking out Yap in the OB lineage in mice reduces cell proliferation and OB differentiation and increases adipocyte formation, resulting in a trabecular bone loss. Mechanistically, YAP interacts with β-catenin and is necessary for maintenance of nuclear β-catenin level and Wnt/β-catenin signaling. Expression of β-catenin in YAP-deficient BMSCs(bone marrow stromal cells) diminishes the osteogenesis deficit. These results thus identify YAP-β-catenin as an important pathway for osteogenesis during adult bone remodeling and uncover a mechanism underlying YAP regulation of bone homeostasis.Jin-Xiu Pan Lei Xiong Kai Zhao Peng Zeng Bo Wang Fu-Lei Tang Dong Sun Hao-han Guo Xiao Yang Shun Cui Wen-Fang Xia Lin Mei Wen-Cheng Xiong 2018Bone Research2018,6,2:19
11Expansion and differentiation of human hepatocyte-derived liver progenitor-like cells and their use for the study of hepatotropic pathogens显示文摘The study of pathophysiological mecha nisms in huma n liver disease has bee n constrained by the in ability to expa nd primary hepatocytes in vitro while maintaining proliferative capacity and metabolic function. We and others have previously shown that mouse mature hepatocytes can be con verted to liver progenitor-like cells in vitro with defined chemical factors. Here we describe a protocol achieving efficient conversion of human primary hepatocytes into liver progenitor-like cells (HepLPCs) through delivery of developmentally relevant cues, including NAD +-dependent deacetylase SIRT1 signaling. These HepLPCs could be expanded sign ifica ntly duri ng in vitro passage. The expa nded cells can readily be con verted back into metabolically functional hepatocytes in vitro and upon tran splantati on in vivo. Under three-dime nsional culture conditions, differentiated cells gen erated from HepLPCs regai ned the ability to support infect io n or reactivatio n of hepatitis B virus (HBV). Our work dem on strates the utility of the con versi on betwee n hepatocyte and liver proge nitor-like cells for studying HBV biology and an tiviral therapies. These fin dings will facilitate the study of liver diseases and regenerative medicine.Gong-Bo Fu Wei-Jian Huang Min Zeng Xu Zhou Hong-Ping Wu Chang-Cheng Liu Han Wu Jun Weng Hong-Dan Zhang Yong-Chao Cai Charles Ashton Min Ding Dan Tang Bao-Hua Zhang Yi Gao Wei-Feng Yu Bo Zhai Zhi-Ying He Hong-Yang Wang He-Xin Yan 2019Cell Research2019,29,1:18
12Clinical study on safety of adult-to-adult living donor liver transplantation in both donors and recipients显示文摘AIM: To investigate the safety of adult-to-adult living donor liver transplantation (A-A LDLT) in both donors and recipients. METHODS: From January 2002 to July 2006, 50 cases of A-A LDLT were performed at West China Hospital, Sichuan University, consisting of 47 cases using right lobe graft without middle hepatic vein (MHV), and 3 cases using dual grafts (one case using two left lobe, 2 using one right lobe and one left lobe). The most common diagnoses were hepatitis B liver cirrosis, 30 (60%) cases; and hepatocellular carcinoma, 15 (30%) cases in adult recipients. Among them, 10 cases had the model of end-stage liver disease (MELD) with a score of more than 25. Donor screening consisted of reconstruction of the hepatic blood vessels and biliary system with 3-dimension computed tomography and volumetry of whole liver and right liver volume. Various improved surgical techniques were adopted in the procedures for both donors and recipients . RESULTS: Forty-nine right lobes and 3 left lobes (2 left lobe grafts for 1 recipient, 1 left lobe graft for 1 recipient who had received right lobe graft donated by relative living donor) were obtained from 52 living donors. The 49 right lobe grafts, without MHV, weighed 400 g-850 g (media 550 g), and the ratio of graft volume to recipient standard liver volume (GV/SLV) ranged from 31.74% to 71.68% (mean 45.35%). All donors' remnant liver volume was over 35% of the whole liver volume. There was no donor mortality. With a follow-up of 2-52 mo (media 9 mo), among 50 adult recipients, complications occurred in 13 (26%) cases and 4 (8%) died postoperatively within 3 mo. Their 1-year actualsurvival rate was 92%. CONCLUSION: When preoperative CT volumetry shows volume of remnant liver is more than 35%, the ratio of right lobe graft to recipients standard liver volume exceeding 40%, A-A LDLT using right lobe graft without MHV should be a very safe procedure for both donors and recipients, otherwise dual grafts liver transplantation should be considered.Bin Liu Lu-Nan Yan Wen-Tao Wang Bo Li Yong Zeng Tian-Fu Wen Ming-Qing Xu Jia-Yin Yang Zhe-Yu Chen Ji-Chun Zhao Yu-Kui Ma Jiang-Wen Liu Hong Wu 2007World Journal of Gastroenterology2007,13,6:17
13Magnetic resonance imaging for local complications of acute pancreatitis: A pictorial review显示文摘Acute pancreatitis is a common disease characterized by sudden upper abdominal pain and vomiting. Alcoholism and choledocholithiasis are the most common factors for this disease. The choice of treatment for acute pancreatitis might be affected by local complications, such as local hemorrhage in or around the pancreas, and peripancreatic infection or pseudoaneurysm. Diagnostic imaging modalities for acute pancreatitis have a significant role in confirming the diagnosis of the disease, helping detect the extent of pancreatic necrosis, and for diagnosing local complications. Magnetic resonance imaging (MRI) might be indicated in acute pancreatitis for detecting and characterizing local complications of acute pancreatitis that involve necrotic, hemorrhagic, infectious, vascular, and pseudocyst disorders. The general MRI sequences for pancreatitis require the combined use of T1-weighted, T2-weighted sequences, and magnetic resonance chol-angiopancreatography. For imaging of pancreatic necrosis, the combination of T1-weighted and T2-weighted findings with dynamic contrast-enhanced imaging gives a comprehensive evaluation of the extent of necrosis and full range of inflammatory extension. For imaging of infectious complications, dynamic contrast-enhanced examinations might help differentiate pancreatic cellulitis or abscesses, from pancreatic fluid collection or simple pseudocysts. For vascular abnormalities, the combination of cross-sectional pancreatic parenchyma imaging with MRA represents a single diagnostic modality for the full evaluation of peripancreatic artery and vein involvement, such as arterial pseudoaneurysms and venous thromboses. The purpose of this pictorial review is to examine the MRI appearances of various local complications of acute pancreatitis and to discuss the practical setup of MRI in local complications of acute pancreatitis.Xiao, Bo Zhang, Xiao-Ming Tang, Wei Zeng, Nan-Lin Zhai, Zhao-Hua 2010World Journal of Gastroenterology2010,16,22:17
14Trend analysis of cancer incidence and mortality in China显示文摘The National Central Cancer Registry of China(NCCRC)updated their nationwide statistics of cancer incidence and mortality in China according to 2013 population-based cancer registration data(due to the time required for data collection,quality control and analysis,the latest cancer statistics available in China have a 3-year lag behind the current year).In this report,the NCCRC provides a comprehensive review of cancer incidence and mortality rates,as well as the statistics overall and by geographical area,cancer sites or age groups(Chen et al.,2017a).It shows that the burden of cancerFang Wei Yingfen Wu Le Tang Fang Xiong Can Guo Xiayu Li Ming Zhou Bo Xiang Xiaoling Li Guiyuan Li Wei Xiong Zhaoyang Zeng 2017Science China(Life Sciences)2017,60,11:16
15Single-cell transcriptomic analysis defines the interplay between tumor cells,viral infection,and the microenvironment in nasopharyngeal carcinoma显示文摘Nasopharyngeal carcinoma(NPC)is an Epstein-Barr virus(EBV)-associated malignancy with a complex tumor ecosystem.How the interplay between tumor cells,EBV,and the microenvironment contributes to NPC progression and immune evasion remains unclear.Here we performed single-cell RNA sequencing on^104,000 cells from 19 EBV^+NPCs and 7 nonmalignant nasopharyngeal biopsies,simultaneously profiling the transcriptomes of malignant cells,EBV,stromal and immune cells.Overall,we identified global upregulation of interferon responses in the multicellular ecosystem of NPC.Notably,an epithelial–immune dual feature of malignant cells was discovered and associated with poor prognosis.Functional experiments revealed that tumor cells with this dual feature exhibited a higher capacity for tumorigenesis.Further characterization of the cellular components of the tumor microenvironment(TME)and their interactions with tumor cells revealed that the dual feature of tumor cells was positively correlated with the expression of co-inhibitory receptors on CD8^+tumor-infiltrating T cells.In addition,tumor cells with the dual feature were found to repress IFN-γproduction by T cells,demonstrating their capacity for immune suppression.Our results provide new insights into the multicellular ecosystem of NPC and offer important clinical implications.Shanzhao Jin Ruoyan Li Ming-Yuan Chen Chao Yu Lin-Quan Tang Yan-Min Liu Jiang-Ping Li Yi-Na Liu Yi-Ling Luo Yifan Zhao Yu Zhang Tian-Liang Xia Shang-Xin Liu Qi Liu Guan-Nan Wang Rui You Jing-Yun Peng Jiang Li Feng Han Jianwei Wang Qiu-Yan Chen Li Zhang Hai-Qiang Mai Benjamin E.Gewurz Bo Zhao Lawrence S.Young Qian Zhong Fan Bai Mu-Sheng Zeng 2020Cell Research2020,30,11:16
16Effects of simulated carbon dioxide and helium peumoperitoneum on proliferation and apoptosis of gastric cancer cells显示文摘AIM:To investigate the effects of carbon dioxide (CO2) and helium insufflation administered at different pressures on the growth and apoptosis of cultured human gastric cancer cells. METHODS:The gastric cancer cells MKN-45 were exposed to a CO2 and helium environment maintained at different pressures (0, 5, 10 and 15 mmHg). The cells were exposed to simulated pneumoperitoneum environment for 4 h, and pH of the culture media was measured after it was moved to normal conditions for 0, 2, 4, 6 and 8 h. Proliferation viability of MKN-45 was examined by 3-4,5Dimethylthiazol-2-yl,5-diphenyltetrazolium bromide or triazolyl blue (MTT) assay after it was moved to normal conditions. Apoptotic ratio was measured by Annexin V-FITC/PI double labelled staining. RESULTS:The pH of media was acid and recovered to normal after 4 h in the CO2 group while it was basic in the helium group. There was no difference between CO2 groups (under 10 mmHg ) and control group (P > 0.05) in the proliferative viability of the cells. The cultured cells exposed to 15 mmHg CO2 environment grew more slowly than control group from 4 to 7 d (P < 0.01 ) while there was no difference from 1 to 3 d (P > 0.05). The proliferative viability in helium group was not obviously different from the control group (P > 0.05). The apoptotic ratio of the cultured cells was markedly higher than that of the control group (P < 0.01) at 10 and 15 mmHg CO2 insufflation pressure. In helium group, the apoptotic ratio was not obviously different from the control group (P > 0.05). CONCLUSION:There is no obvious effect in the proliferation and apoptosis of MKN-45 cells under 10 mmHg CO2 insufflation pressure and helium in any pressure. Fifteen mmHg CO2 insufflation pressure can inhibit the proliferation of the cells and improve apoptosis.Ying-Xue Hao Hua Zhong Chao Zhang Dong-Zu Zeng Yan Shi Bo Tang Pei-Wu Yu 2008World Journal of Gastroenterology2008,14,14:16
17Thorombolytic therapy with rescue percutaneous coronary intervention versus primary percutaneous coronary intervention in patients with acute myocardial infarction: a multicenter randomized clinical trial显示文摘背景尽管有营救的 thrombolytic 治疗经皮的冠的干预(一种总线标准)是为圣片断举起的普通治疗策略尖锐心肌的梗塞( STEMI ),欠缺的数据在它相对主要一种总线标准,和比较的功效上是可得到的因此是这 study.Methods 的目的这 multicenter ,开标签,使随机化,平行试用与 STEMI 在病人(年龄 70 年)上在 12 所医院里被进行在 12 以内介绍了症状发作的小时(吝啬的间隔> 3 个小时)。病人们被使随机化到三个组:主要一种总线标准组(n=101 ) ;recombinant staphylokinase (r-Sak ) 组(n=104 ) ;并且 recombinant 织物类型 plasminogen 使活跃之物(rt-PA ) 组(n=106 ) 。为分配到 thrombolytic 治疗手臂的所有病人,冠的 angiography 在药治疗以后在 90 分钟被执行证实梗塞相关的动脉(IRA ) 明显;营救一种总线标准与 TIMI 流动等级 2 在情况中被执行。赤裸金属的 stent 培植为所有病人被计划。 113.4 的一般水准纪录开始 thrombolytic 治疗( door-to-needle 时间)和 141.2 分钟在 IRA (到汽球时间的门)执行第一汽球通货膨胀的在它要求了的随机化以后的结果 IRA 明显( TIMI 流动等级 2 或 3 )和 TIMI 流动等级的 .Rates 3 是显著地更低的在在 90 点的 thrombolysis 组在过程的结束比在主要一种总线标准组在药治疗以后纪录(70.5%对98.0%, P < 0.0001 ,和53.0%对85.9%, P < 0.0001 ,分别地)。有 stenting 的营救一种总线标准在 thrombolytic 治疗手臂在 117 个病人(55.7%) 被执行。明显和 3 仍然是的 TIMI 流动等级的率显著地比在主要一种总线标准组在营救一种总线标准降低(88.9% 对 97.9% , P=0.0222,并且 68.4% 对 85.0% , P=0.0190,分别地) 。在 30 天治疗以后,死亡率在比在主要一种总线标准组与营救一种总线标准组相结合的 thrombolysis 是显著地更高的(7.1% 对 0, P=0.0034 ) 。 death/Ml 和流血复杂并发症的率比在主要一种总线标准组在与营救一种总线标准组一起的 thrombolysis 是显著地更高的(10.0%对1.0%, P=0.0380 ,并且28.10%对8.91%, P=0.0001 ,分别地)有营救一种总线标准的 .Conclusions Thrombolytic 治疗与冠的明显和 TIMI 流动等级的显著地更低的率被联系 3 ,但是与在 30 天的死亡, death/Ml 和出血性的复杂并发症的显著地更高的率,作为与在这组中国 SGAO Run-lin HAN Ya-ling YANG Xin-chun MAO Jie-ming FANG Wei-yi WANG Lei SHEN Wei-feng LI Zhan-quan JIA Guo-liang LU Shu-zheng WEI Meng ZENG Ding-yin CHEN Ji-lin QIN Xue-wen XU Bo DU Chang-hui 2010Chinese Medical Journal2010,,11:15
18Shanghai Score: A Prognostic and Adjuvant Treatment-evaluating System Constructed for Chinese Patients with Hepatocellular Carcinoma after Curative Resection显示文摘Hui-Chuan Sun Lu Xie Xin-Rong Yang Wei Li Jian Yu Xiao-Dong Zhu Yong Xia Ti Zhang Yang Xu Bo Hu Li-Ping Du Ling-Yao Zeng Jian Ouyang Wei Zhang Tian-Qiang Song Qiang Li Ying-Hong Shi Jian Zhou Shuang-Jian Qiu Qian Liu Yi-Xue Li Zhao-You Tang Yu Shyr Feng Shen Jia Fan 2017Chinese Medical Journal2017,,22:15
19Ion Flow Field Calculation of Multi-circuit DC Transmission Lines显示文摘An upwind finite element(FE)based algorithm to calculate the ion flow field in the vicinity of multi-circuit DC transmission lines is described.The initial value estimation and boundary condition are optimized,so details of the transmission lines such as bundle conductors and ground wires can be taken into account in the simulation model.Comparison between measured and computed ground level total electrical field and ion current density shows satisfactory agreement.The ion flow field of a ±500 kV HVDC project with bipolar lines on the same tower is simulated.The total electrical field and ion current density on ground level are compared among different line arrangements.LI Wei ZHANG Bo HE Jin-liang ZENG Rong CHEN Shui-ming 2008高电压技术2008,34,12:14
20Complement C3 activation regulates the production of tRNA-derived fragments Gly-tRFs and promotes alcohol-induced liver injury and steatosis显示文摘Complement is known to play a role in alcoholic fatty liver disease (AFLD), but the underlying mechanisms are poorly understood, thereby constraining the development of a rational approach for therapeutic intervention in the complement system. C3 deficiency has been shown to impart protective effects against ethanol-induced hepatic steatosis and inflammation. Here we demonstrate a protection effect in wild-type mice by treatment with CR2-Crry, a specific inhibitor of C3 activation. The expression of glycine transfer (t) RNA-derived fragments (Gly-tRFs) is upregulated in ethanol-fed mice and inhibition of Gly-tRFs in vivo decreases chronic ethanol feeding-induced hepatosteatosis without affecting inflammation. The expression of Gly-tRF was downregulated in C3-deficient or CR2-Crry-treated mice, but not in C5-deficient mice;Gly-tRF expression was restored by the C3 activation products C3a or Asp (C3a-des-Arg) via the regulation of CYP2E1. Transcriptome profiling of hepatic tissues showed that Gly-tRF inhibitors upregulate the expression of sirtuin1 (Sirt1) and subsequently affect downstream lipogenesis and β-oxidation pathways. Mechanistically, Gly-tRF interacts with AGO3 to downregulate Sirt1 expression via sequence complementarity in the 3′ UTR. Notably, the expression levels of C3d, CYP2E1 and Gly-tRF are upregulated, whereas Sirt1 is decreased in AFLD patients compared to healthy controls. Collectively, our findings suggest that C3 activation products contribute to hepatosteatosis by regulating the expression of Gly-tRF. Complement inhibition at the C3 activation step and treatment with Gly-tRF inhibitors may be potential and precise therapeutic approaches for AFLD.Fudi Zhong Zhigao Hu Keqing Jiang Biao Lei Zhan Wu Guandou Yuan Hongliang Luo Chunqiang Dong Bo Tang Chaowen Zheng Shuai Yang Yonglian Zeng Zhenya Guo Shuiping Yu Huizhao Su Guo Zhang Xiaoqiang Qiu Stephen Tomlinson Songqing He 2019Cell Research2019,29,7:14
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