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496篇 您的检索式:作者名="Song Mao"
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1Extensive translation of circular RNAs driven by N6-methyladenosine显示文摘广泛的 pre-mRNA 拼接背在人的 transcriptome 产生众多的圆形的 RNA (circRNAs ) 。然而,这些 circRNAs 的生物功能仍然保持大部分不清楚。这里,我们报导那 N 6-methyladenosine (m 6 一) , RNA 的最丰富的基础修正,在人的房间从 circRNAs 支持蛋白质翻译的有效开始。我们发现那一致 m 6 A 主题在 circRNAs 和单个 m 6 一个地点是足够的驾驶翻译开始。这 m 6A 驱动的翻译要求开始因素 eIF4G2 和 m 6 读者 YTHDF3,并且被 methyltransferase METTL3/14 提高,在热吃惊之上由 demethylase FTO,和 upregulated 禁止了。通过介绍的 polysome 的进一步的分析,计算预言和集体 spectrometry 揭示那 m 6 circRNAs 的 A 驱动的翻译是普遍的,与有翻译潜力的几百内长的 circRNAs。我们的学习扩展人的 transcriptome 的编码风景,并且在对环境应力的细胞的回答建议导出 circRNA 的蛋白质的一个角色。Yun Yang Xiaojuan Fan Miaowei Mao Xiaowei Song Ping Wu6,7 Yang Zhang Yongfeng Jin Yi Yang Ling-Ling Chen Yang Wang Catherine CL Wong Xinshu Xiao Zefeng Wang 2017Cell Research2017,27,5:246
2Persistence and clearance of viral RNA in 2019 novel coronavirus disease rehabilitation patients显示文摘Background:A patient’s infectivity is determined by the presence of the virus in different body fluids,secretions,and excreta.The persistence and clearance of viral RNA from different specimens of patients with 2019 novel coronavirus disease(COVID-19)remain unclear.This study analyzed the clearance time and factors influencing 2019 novel coronavirus(2019-nCoV)RNA in different samples from patients with COVID-19,providing further evidence to improve the management of patients during convalescence.Methods:The clinical data and laboratory test results of convalescent patients with COVID-19 who were admitted to from January 20,2020 to February 10,2020 were collected retrospectively.The reverse transcription polymerase chain reaction(RT-PCR)results for patients’oropharyngeal swab,stool,urine,and serum samples were collected and analyzed.Convalescent patients refer to recovered non-febrile patients without respiratory symptoms who had two successive(minimum 24 h sampling interval)negative RT-PCR results for viral RNA from oropharyngeal swabs.The effects of cluster of differentiation 4(CD4)+T lymphocytes,inflammatory indicators,and glucocorticoid treatment on viral nucleic acid clearance were analyzed.Results:In the 292 confirmed cases,66 patients recovered after treatment and were included in our study.In total,28(42.4%)women and 38 men(57.6%)with a median age of 44.0(34.0-62.0)years were analyzed.After in-hospital treatment,patients’inflammatory indicators decreased with improved clinical condition.The median time from the onset of symptoms to first negative RT-PCR results for oropharyngeal swabs in convalescent patients was 9.5(6.0-11.0)days.By February 10,2020,11 convalescent patients(16.7%)still tested positive for viral RNA from stool specimens and the other 55 patients’stool specimens were negative for 2019-nCoV following a median duration of 11.0(9.0-16.0)days after symptom onset.Among these 55 patients,43 had a longer duration until stool specimens were negative for viral RNA than for throat swabs,with a median delay of 2.0(1.0-4.0)days.Results for only four(6.9%)urine samples were positive for viral nucleic acid out of 58 cases;viral RNA was still present in three patients’urine specimens after throat swabs were negative.Using a multiple linear regression model(F=2.669,P=0.044,and adjusted R2=0.122),the analysis showed that the CD4+T lymphocyte count may help predict the duration of viral RNA detection in patients’stools(t=-2.699,P=0.010).The duration of viral RNA detection from oropharyngeal swabs and fecal samples in the glucocorticoid treatment group was longer than that in the non-glucocorticoid treatment group(15 days vs.8.0 days,respectively;t=2.550,P=0.013)and the duration of viral RNA detection in fecal samples in the glucocorticoid treatment group was longer than that in the non-glucocorticoid treatment group(20 days vs.11 days,respectively;t=4.631,P<0.001).There was no statistically significant difference in inflammatory indicators between patients with positive fecal viral RNA test results and those with negative results(P>0.05).Conclusions:In brief,as the clearance of viral RNA in patients’stools was delayed compared to that in oropharyngeal swabs,it is important to identify viral RNA in feces during convalescence.Because of the delayed clearance of viral RNA in the glucocorticoid treatment group,glucocorticoids are not recommended in the treatment of COVID-19,especially for mild disease.The duration of RNA detection may relate to host cell immunity.Yun Ling Shui-Bao Xu Yi-Xiao Lin Di Tian Zhao-Qin Zhu Fa-Hui Dai Fan Wu Zhi-Gang Song Wei Huang Jun Chen Bi-Jie Hu Sheng Wang En-Qiang Mao Lei Zhu Wen-Hong Zhang Hong-Zhou Lu 2020Chinese Medical Journal2020,,9:58
3Rice RING protein OsBBI1 with E3 ligase activity confers broad-spectrum resistance against Magnaporthe oryzae by modifying the cell wall defence显示文摘新兴的证据建议 E3 ligases 在多样的生物过程起关键作用,包括在植物的天生的有免疫力的回答。然而,在植物的 E3 ligase 参与的机制天生的免疫是不清楚的。我们报导那米饭基因, OsBBI1,与 E3 ligase 活动编码戒指手指蛋白质,调停用途广泛的疾病抵抗。OsBBI1 的表示被米饭强风真菌 Magnaporthe oryzae,以及化学 inducers 导致, benzothiadiazole 和水杨酸酸。生物化学的分析表明那 OsBBI1 蛋白质在 vitro 拥有 E3 ubiquitin ligase 活动。基因分析表明在一根 Tos17 插入线的 OsBBI1 功能的损失增加了危险性,当在转基因的植物的 OsBBI1 的 overexpression 授与提高的抵抗到 M 的多重赛跑时。oryzae。这显示 OsBBI1 对强风真菌调制用途广泛的抵抗。OsBBI1-overexpressing 植物由 M 在感染地点在房间墙中在酉分的混合物的房间和蛋白质的 cross-linking 显示出 H2O2 累积的高水平。oryzae 与相比野类型(WT ) 植物。房间墙在 OsBBI1-overexpressing 植物是更厚的并且在变异的植物更薄比在 WT 植物。我们的结果建议 OsBBI1 由修改房间墙防卫回答调制用途广泛的抵抗到强风真菌。OsBBI1 的功能的描述为在米饭对最破坏的疾病构造用途广泛的抵抗提供卓见进 E3 调停 ligase 的天生的免疫,和一个实际工具。Wei Li Sihui Zhong Guojun Li Qun Li Bizeng Mao Yiwen Deng Huijuan Zhang Longjun Zeng Fengming Song Zuhua He 2011Cell Research2011,21,5:30
4Application and Prospect of Mixed Reality Technology in Medical Field显示文摘Mixed reality(MR)technology is a new digital holographic image technology,which appears in the field of graphics after virtual reality(VR)and augmented reality(AR)technology,a new interdisciplinary frontier.As a new generation of technology,MR has attracted great attention of clinicians in recent years.The emergence of MR will bring about revolutionary changes in medical education training,medical research,medical communication,and clinical treatment.At present,MR technology has become the popular frontline information technology for medical applications.With the popularization of digital technology in the medical field,the development prospects of MR are inestimable.The purpose of this review article is to introduce the application of MR technology in the medical field and prospect its trend in the future.Hong-zhi HU Xiao-bo FENG Zeng-wu SHAO Mao XIE Song XU Xing-huo WU Zhe-wei YE 2019Current Medical Science2019,39,1:29
5Expenditure and financial burden for the diagnosis and treatment of colorectal cancer in China:a hospital.based,multicenter,cross-sectional survey显示文摘Background: The increasing prevalence of colorectal cancer(CRC) in China and the paucity of information about relevant expenditure highlight the necessity of better understanding the financial burden and effect of CRC diagnosis and treatment. We performed a survey to quantify the direct medical and non-medical expenditure as well as the resulting financial burden of CRC patients in China.Methods: We conducted a multicenter, cross-sectional survey in 37 tertiary hospitals in 13 provinces across China between 2012 and 2014. Each enrolled patient was interviewed using a structured questionnaire. All expenditure data were inflated to the 2014 Chinese Yuan(CNY; 1 CNY = 0.163 USD). We quantified the overall expenditure and financial burden and by subgroup(hospital type, age at diagnosis, sex, education, occupation, insurance type, household income, clinical stage, pathologic type, and therapeutic regimen). We then performed generalized linear modeling to determine the factors associated with overall expenditure.Results: A total of 2356 patients with a mean age of 57.4 years were included, 57.1 % of whom were men; 13.9% of patients had stage I cancer; and the average previous-year household income was 54,525 CNY.The overall average direct expenditure per patient was estimated to be 67,408 CNY, and the expenditures for stage Ⅰ, Ⅱ, Ⅲ, and Ⅳ disease were 56,099 CNY, 59,952 CNY, 67,292 CNY, and 82,729 CNY, respectively. Non-medical expenditure accounted for 8.3%of the overall expenditure. The 1-year out-of-pocket expenditure of a newly diagnosed patient was 32,649 CNY, which accounted for 59.9% of their previous-year household income and caused 75.0% of families to suffer an unmanageable financial burden. Univariate analysis showed that financial burden and overall expenditure differed in almost all subgroups(P < 0.05), except for sex. Multivariate analysis showed that patients who were treated in specialized hospitals and those who were diagnosed with adenocarcinoma or diagnosed at a later stage were likely to spend more,whereas those with a lower household income and those who underwent surgery spent less(all P < 0.05).Conclusions: For patients in China, direct expenditure for the diagnosis and treatment of CRC seemed catastrophic,and non-medical expenditure was non-ignorable. The financial burden varied among subgroups, especially among patients with different clinical stages of disease, which suggests that, in China, CRC screening might be cost-effective.Hui-Yao Huang Ju-Fang Shi Lan-Wei Guo Ya-Na Bai Xian-Zhen Liao Guo-iangLiu A-Yan Mao Jian-Song Ren Xiao-Jie Sun Xin-Yu Zhu Le Wang Bing-Bing Song Ling-Bin Du Lin Zhu Ji-Yong Gong Qi Zhou Yu-Qin Liu Rong Cao Ling Mai Li Lan Xiao-Hua Sun Ying Ren Jin-Yi Zhou Yuan-Zheng Wang Xiao Qi Pei-An Lou Dian Shi Ni Li Kai Zhang Jie He Min Dai 2017Chinese Journal of Cancer2017,36,8:25
6Surveillance, epidemiology, and pathogen spectrum of hand, foot, and mouth disease in mainland of China from 2008 to 2017显示文摘Hand,foot and mouth disease(HFMD)was reported in May 2,2008 to be the 38th legally notifiable disease in China's National Notifiable Disease Reporting and Surveillance System.In order to solve the infection,an extensive three-level HFMD surveillance laboratory network was established.In this study,the framework of that network is assessed and the incidence of HFMD in China from 2008 to 2017 is reported using a descriptive epidemiologic method.During these 10 years,a series of techniques have been widely applied in all the network laboratories.Using information and material obtained from the network,a virus bank and database containing 18,238 viruses were established.Nationally,18,184,834 HFMD cases,including 152,436 severe cases and 3633 fatal cases,were reported in mainland of China.The average annual incidence in the population was 133.99/100,000 people,with a maximum incidence of 205.06/100,000 people in 2014.The incidence and mortality rates of HFMD were the highest in children aged 1–2 years.The numbers of reported cases fluctuated,with a high incidence observed every 2 years.An overall increase in the number of reported cases was also observed throughout the study period.Despite this,the incidence of severe cases and the mortality rate have been decreasing.High-risk regions are located in southern,eastern,and central China.Two peaks of HFMD infection cases were observed annually except for Northeast China.Different proportions of enterovirus serotypes were observed during the studied years.The predominant enterovirus varies from year to year,but the disease severity is always closely related to the specific serotype.EV-A71 is the dominant serotype associated with severe and fatal cases,with constituent ratios of 70.03%and 92.23%,respectively.The studied highly sensitive and efficient surveillance network provides information that is critical for prevention and control of the disease.It is extremely necessary and important to continuously conduct extensive virological surveillance for HFMD.Tianjiao Ji Taoli Han Xiaojuan Tan Shuangli Zhu Dongmei Yan Qian Yang Yang Song Aili Cui Yan Zhang Naiying Mao Songtao Xu Zhen Zhu Dandan Niu Yong Zhang Wenbo Xu 2019Biosafety and Health2019,1,1:26
7Expert consensus on the diagnosis and treatment of heat stroke in China显示文摘Heat stroke(HS)is a fatal disease caused by thermal damage in the body,and it has a very high mortality rate.In 2015,the People’s Liberation Army Professional Committee of Critical Care Medicine published the first expert consensus on HS in China,Expert consensus on standardized diagnosis and treatment for heat stroke.With an increased understanding of HS and new issues that emerged during the HS treatment in China in recent years,the 2015 consensus no longer meet the requirements for HS prevention and treatment.It is necessary to update the consensus to include the latest research evidence and establish a new consensus that has broader coverage,is more practical and is more in line with China’s national conditions.This new expert consensus includes new concept of HS,recommendations for laboratory tests and auxiliary examinations,new understanding of diagnosis and differential diagnosis,On-site emergency treatment and In-hospital treatment,translocation of HS patients and prevention of HS.Shu-Yuan Liu Jing-Chun Song Han-Ding Mao Jin-Bao Zhao Qing Song 2020Military Medical Research2020,7,1:24
8Superficial temporal artery-middle cerebral artery bypass combined with encephalo-duro-myo-synangiosis in treating moyamoya disease: surgical techniques, indications and midterm follow-up results显示文摘XU Bin SONG Dong-lei MAO Ying GU Yu-xiang XU Hong LIAO Yu-jun LIU Chuang-hong ZHOU Liang-fu 2012Chinese Medical Journal2012,,24:22
9Current status of diagnosis and treatment of bladder cancer in China-Analyses of Chinese Bladder Cancer Consortium database显示文摘Objective:To investigate current status of diagnosis and treatment of bladder cancer in China.Methods:A database was generated by Chinese Bladder Cancer Consortium(CBCC).From January 2007 to December 2012,14,260 cases from 44 CBCC centers were included.Data of diagnosis,treatment and pathology were collected.Results:The average age was 63.5 year-old and most patients were male(84.3%).The most common histologic types were urothelial carcinoma(91.4%),adenocarcinoma(1.8%),and squamous carcinoma(1.9%).According to 1973 and 2004 WHO grading system,42.0%,41.0%,and 17.0% of patients were grade 1,2,and 3,and 16.0%,48.7%,and 35.3% of patients were papillary urothelial neoplasms of low malignant potential,low,and high grade,respectively.Non-muscle invasive bladder cancer(NMIBC)and muscle invasive bladder cancer(MIBC)were 25.2% and 74.1%,respectively(0.8% not clear).Carcinoma in situ was only 2.4%.Most patients were diagnosed by white-light cystoscopy with biopsy(74.3%).Fluorescence and narrow band imaging cystoscopy had additional detection rate of 1.0% and 4.0%,respectively.Diagnostic transurethral resection(TUR)provided detection rate of 16.9%.Most NMIBCs were treated with TUR(89.2%).After initial TUR,2.6%accepted second TUR,and 45.7%,69.9%,and 58.7% accepted immediate,induced,and maintenance chemotherapy instillation,respectively.Most MIBCs were treated with radical cystectomy(RC,59.7%).Laparoscopic RCs were 35.1%,while open RC 63.4%.Extended and standard pelvic lymph node dissection were 7% and 66%,respectively.Three most common urinary diversions were orthotopic neobladder(44%),ileal conduit(31%),and ureterocutaneostomy(23%).Only 2.3% of patients accepted neo-adjuvant chemotherapy and only 18%of T3 and T4 patients accepted adjuvant chemotherapy.Conclusion:Disease characteristics are similar to international reports,while differences of diagnosis and treatment exist.This study can provide evidences for revisions of the guideline on bladder cancer in China.Kaiwen Li Tianxin Lin Wei Xue Xin Mu Enci Xu Xu Yang Fubao Chen Guangyong Li Lulin Ma Guoliang Wang Chaozhao Liang Haoqiang Shi Ming Li Mao Tang Xueyi Xue Yisong Lv Yaoliang Deng Chengyang Li Zhiwen Chen Xiaozhou Zhou Fengshuo Jin Xudong Liu Jinxin Wei Lei Shi Xin Gou Weiyang He Liqun Zhou Lin Cai Baiye Jin Guanghou Fu Xiangbo Kong Hongyan Sun Ye Tian Lang Feng Tiejun Pan Yiyi Wu Dongwen Wang Hailong Hao Benkang Shi Yaofeng Zhu Qiang Wei Ping Han Changli Wu Dawei Tian Zhangqun Ye Zheng Liu Zhiping Wang Junqiang Tian Lin Qi Minfeng Chen Wei Li Jinchun Qi Gongxian Wang Longlong Fu Zhaolin Sun Guangheng Luo Zhoujun Shen Zhaowei Zhu Jinchun Xing Zhun Wu Dong Wei Xin Chen Yanqun Na Hongfeng Guo Chunxi Wang Zhihua Lu Chuize Kong Yang Liu Jin Yang Jianyun Hu Xin Gao Jielin Li Changjun Yin Pu Li Shan Chen Zhen Du Jiongming Li Yongji Yan Xu Zhang Shuang Huang Fangjian Zhou Zhiling Zhang Yinghao Sun Shuxiong Zeng Song Cen Jiaquan Zhou Hanzhong Li Jin Wen Jian Huang 2015Asian Journal of Urology2015,2,2:21
10MICROSTRUCTURE EVALUATION OF SEMI-SOLID STEEL MATERIALS IN ROLLING PROCESS AND THE RESULTING MECHANICAL PROPERTIES显示文摘The experimental study on the familiar 60Si2Mn and lCrl8Ni9Ti materials rolled in the semi-solid state was carried out. Experimental results show that the segregation of liquid occurs when the semi-solid slurry is rolled, which influences the microstructure and mechanics performance of workpiece under room temperature. The globular solid particles don’t present plastic deformation unless high solid fraction. At the same time, the mechanics property of workpiece is pretty good while the semi-solid slurry of 1Cr18Ni9Ti material is rolled by a pass and no other treatment.R.B. Song, Y.L. Kang, J.L. Sun, A.M. Zhao and W.M. Mao School of Materials Science & Engineering, University of Science & Technology Beijing, Beijing 100083,China 2001Acta Metallurgica Sinica(English Letters)2001,14,5:17
11Investigation of scale inhibition mechanisms based on the effect of scale inhibitor on calcium carbonate crystal forms显示文摘To probe the scale inhibition mechanisms,calcium carbonate scale occurring before and after the ad- dition of scale inhibitors was collected.The results from scale SEM confirm that,without scale inhibitor, calcium carbonate scale shows rhombohedron and hexagon,which are the characteristic feathers of calcite.After addition of inhibitors,morphology of scale is changed,and the more efficient the scale inhibitor is,the more greatly the morphology is modified.To elucidate the scale constitute,they were further analyzed by FT-IR,XRD.Besides calcite,vaterite and aragonite occur in calcium carbonate scale after addition of inhibitors,and the higher scale inhibition efficiency is,the more vaterite presents in scale.It can be concluded that the alteration of morphology is ascribed to the change of crystal form. There are three stages in the crystallizing process including occurrence and disappearing of unstable phase,occurrence and disappearing of metastable phase,development of stable phase.Without scale inhibitors,metastable phases usually transform into stable phase,thus the main constitute of formed scale is calcite.When scale inhibitors are added,both formation and transformation of metastable phases are inhibited,which results in the occurrence of aragonite and vaterite.From the fact that more vaterite presents in scale with a more efficient scale inhibitor added,we can see that the function of scale inhibitor is realized mainly by controlling the crystallizing process at the second stage.ZHANG GuiCai GE JiJiang SUN MingQin PAN BinLin MAO Tao SONG ZhaoZheng 2007Science China Chemistry2007,50,1:17
12Hot deformation behavior and constitutive model of TC18 alloy during compression显示文摘The hot deformation behavior of TC18 alloy at strain rates ranging from 1 9 10-4to 1 9 10-2s-1and temperatures ranging from 25 to 800 °C was studied using a WDW-300 electronic universal testing machine. The relationships between true stress and true strain show that flow stress decreases with the increase of temperature and increases as strain rate increases. The effect of strain rate on the flow stress becomes pronounced at higher temperatures. At room temperature, the river pattern characteristic of brittle fracture and the dimple pattern typical of ductile fracture are found to exist in different regions of fracture surfaces of the samples. An improved constitutive relationship is proposed to accurately describe the flow stress of TC18 by considering the effect of strain. And a microscopic model is also deduced which can link the physical mechanisms to the macroscopic experimental results. A good agreement is obtained between the predictions of the microscopic model and the results of the macroscopic experiment.Bao-Hua Jia Wei-Dong Song Hui-Ping Tang Zhi-Hua Wang Xiao-Nan Mao Jian-Guo Ning 2014Rare Metals2014,33,4:16
13Recurrent gain-of-function USP8 mutations in Cushing's disease显示文摘库欣的疾病,引起过量皮质醇生产的也已知的同样促肾上腺皮质的荷尔蒙(ACTH )-secreting 垂体腺瘤(舞步) ,占多达 85%corticotrophin 依赖的库欣的症候群盒子。然而,在这疾病的基因改变是不清楚的。这里,我们执行了从 12 秘密 ACTH 舞步导出并且匹配血样品的 DNA 定序的 whole-exome,它在候选人基因揭示了体的变化的三种类型, USP8 (编码 ubiquitin 特定的朊酶 8 ) ,专门在 exon 14 在 12 秘密 ACTH 舞步中的 8 个。我们进一步评估了体的 USP8 变化在另外由定序的 Sanger 的 258 舞步。进一步定序指向在 108 秘密 ACTH 舞步(62.04%) 中的 67 个识别了 USP8 变体的 17 种类型的一个总数。然而,任何一个都没在舞步的另外的类型这些变化被检测(n = 150 ) 。这些变化在 USP8 的 14-3-3 绑定主题以内聚集并且破坏在 USP8 和 14-3-3 蛋白质之间的相互作用,导致保护 EGFR 免受 lysosomal 降级的伤害的一个提高的能力。因此,有 EGFR 表示,提高的 EGFR 蛋白质丰富和 mRNA 表示的更高的发生 POMC 铺平的变异的 USP8 显示的舞步,它编码 ACTH 的先锋。有变异的 USP8 的舞步在尺寸是显著地更小的并且比野类型的舞步有更高的 ACTH 生产。在里面通过手术 resected 主要变异 USP8 的肿瘤房间, USP8 击倒或堵住的 EGFR 有效地稀释 ACTH 分泌物。一起拿,体的 gain-of-function USP8 变化是普通的并且在库欣的疾病贡献 ACTH 生产过剩。USP8 或 EGFR 的抑制为对待变异 USP8 的 corticotrophin 腺瘤是有希望的。我们的学习在库欣的疾病加亮潜在地功能的变异的基因并且提供卓见进这疾病的治疗学。Zeng-Yi Ma Zhi-Jian Song Jian-Hua Chen Yong-Fei Wang Shi-Qi Li Liang-Fu Zhou Ying Mao Yi-Ming Li Rong-Gui Hu Zhao-Yun Zhang Hong-Ying Ye Ming Shen Xue-Fei Shou Zhi-Qiang Li Hong Peng Qing-Zhong Wang Dai-Zhan Zhou Xiao-Lan Qin Jue Ji Jie Zheng Hong Chen Yin Wang Dao-Ying Geng Wei-Jun Tang Chao-Wei Fu Zhi-Feng Shi Yi-Chao Zhang Zhao Ye Wen-Qiang He Qi-Lin Zhang Qi-Sheng Tang Rong Xie Jia-Wei Shen Zu-Jia Wen Juan Zhou Tao Wang Shan Huang Hui-Jia Qiu Ni-Dan Qiao Yi Zhang Li Pan Wei-Min Bao Ying-Chao Liu Chuan-Xin Huang Yong-Yong Shi Yao Zhao 2015Cell Research2015,25,3:16
14COVID-19 Outbreak Caused by Contaminated Packaging of Imported Cold-Chain Products—Liaoning Province,China,July 2020显示文摘Summary What is known about this topic?Few major outbreaks of coronavirus disease 2019(COVID-19)have occurred in China after major nonpharmaceutical interventions and vaccines have been deployed and implemented.However,sporadic outbreaks that had high possibility to be linked to cold chain products were reported in several cities of China..What is added by this report?In July 2020,a COVID-19 outbreak occurred in Dalian,China.The investigations of this outbreak strongly suggested that the infection source was from COVID-19 virus-contaminated packaging of frozen seafood during inbound unloading personnel contact.What are the implications for public health practice?Virus contaminated paper surfaces could maintain infectivity for at least 17–24 days at-25℃.Exposure to COVID-19 virus-contaminated surfaces is a potential route for introducing the virus to a susceptible population.Countries with no domestic transmission of COVID-19 should consider introducing prevention strategies for both inbound travellers and imported goods.Several measures to prevent the introduction of the virus via cold-chain goods can be implemented.Huilai Ma1 Jianqun Zhang Ji Wang Ying Qin Cao Chen Yang Song Liang Wang Jun Meng Lingling Mao Fengqin Li Ning Li Jian Cai Yong Zhang Dayan Wang Yunting Xia Hong Wang Shaofeng Jiang Xiang Zhao Peihua Niu Wenjie Tan Tao Ma Yecheng Yao Naiying Mao Zhen Zhu Tianjiao Ji Qian Yang Baoying Huang Li Zhao Jianxing Yu Li Bai Shuangli Zhu Dongyan Wang Yan Zhang Yingwei Sun Mingchun Luan Yanhai Wang Haibo Sun Shihong Yang Zhijian Bo Xiang Ren Zhongjie Li George Fu Gao Wei Yao Wenqing Yao Zijian Feng Wenbo Xu 2021China CDC weekly2021,3,21:16
15The use of contrast-enhanced ultrasound in uterine leiomyomas显示文摘背景超声(美国) 是在子宫的平滑肌瘤的诊断和治疗的一个流行方法,但是精确性的缺乏极大地限制它的申请。最近, microbubble 改进技术负担得起肿瘤 neovascularity 的直接描写并且建立肿瘤的一张更精确的脉管的地图。这研究被承担描述 SonoVue 的分发模式,并且在子宫的 leiomyomas.Methods 的描述和治疗调查提高对比的超声(CEUS ) 的潜在的使用,一个第二代的对比代理人,在子宫的平滑肌瘤的 micrecirculation,有子宫的平滑肌瘤的 96 个病人在这研究被注册。CEUS 用定序技术(每秒字符数) 和 SonoVue 的韵律脉搏被执行。不同损害的改进模式是 CEUS 的诊断精确性与在对比注射以后的常规 ultrasound.Results 的相比的 observed.The,宏发行量的容器并且肌瘤微发行量首先出现了,由正常 myometrium 并且最后列在后面子宫内膜。在冲刷阶段期间,肌瘤展出了明显的 hypoenhancement 跟随的同类的改进。肿瘤的边缘清楚地被描绘。在良性的退化或坏死的区域没有代理人灌注。然而在肉瘤退化,喂的容器在 myometrium 显得比那些显著地早。另外,肿瘤在中心没有代理人灌注展出了异构的 hyperenhancment,没有 membraniform 符号在迟了的阶段被观察。在 subserous andsubmucous 平滑肌瘤,在产生从的小花梗的喂的动脉子宫能被看见。在这研究,为子宫的平滑肌瘤的 CEUS 和传统的美国的诊断精确性是 96.7%(160/165 ) 并且 82.4%(136/165 ) respectively.Conclusions CEUS 能提供对平滑肌瘤 vascularization 的精确描述。特定的改进模式可能对描述,治疗选择并且平滑肌瘤的治疗学的监视有用。ZHANG Xin-ling ZHENG Rong-qin YANG Yue-bo HUANG Dong-mei SONG Qian MAO Yong-jiang LI Yu-hua ZHENG Zhi-juan 2010Chinese Medical Journal2010,,21:16
16Effects of Wen Dan Tang on insomnia-related anxiety and levels of the brain-gut peptide Ghrelin显示文摘Ghrelin, a brain-gut peptide that induces anxiety and other abnormal emotions, contributes to the effects of insomnia on emotional behavior. In contrast, the traditional Chinese Medicine remedy Wen Dan Tang reduces insomnia-related anxiety, which may perhaps correspond to changes in the brain-gut axis. This suggests a possible relationship between Wen Dan Tang's pharmacological mechanism and the brain-gut axis. Based on this hypothesis, a sleep-deprived rat model was induced and Wen Dan Tang was administered using oral gavage during model establishment. Wen Dan Tang significantly reduced insomnia-related anxiety and prevented Ghrelin level decreases following sleep deprivation, especially in the hypothalamus. Increased expression of Ghrelin receptor mRNA in the hypothalamus was also observed, suggesting that reduced anxiety may be a result of Wen Dan Tang's regulation of Ghrelin-Ghrelin receptors.Liye Wang Yuehan Song Feng Li Yan Liu Jie Ma Meng Mao Fengzhi Wu Ying Wu Sinai Li Binghe Guan Xiaolan Liu 2014Neural Regeneration Research2014,9,2:16
17Examining Forest Net Primary Productivity Dynamics and Driving Forces in Northeastern China During 1982–2010显示文摘Forest net primary productivity(NPP) is a key parameter for forest monitoring and management. In this study, monthly and annual forest NPP in the northeastern China from 1982 to 2010 were simulated by using Carnegie-Ames-Stanford Approach(CASA) model with normalized difference vegetation index(NDVI) sequences derived from Advanced Very High Resolution Radiometer(AVHRR) Global Inventory Modeling and Mapping Studies(GIMMS) and Terra Moderate Resolution Imaging Spectroradiometer(MODIS) products. To address the problem of data inconsistency between AVHRR and MODIS data, a per-pixel unary linear regression model based on least squares method was developed to derive the monthly NDVI sequences. Results suggest that estimated forest NPP has mean relative error of 18.97% compared to observed NPP from forest inventory. Forest NPP in the northeastern China increased significantly during the twenty-nine years. The results of seasonal dynamic show that more clear increasing trend of forest NPP occurred in spring and autumn. This study also examined the relationship between forest NPP and its driving forces including the climatic and anthropogenic factors. In spring and winter, temperature played the most pivotal role in forest NPP. In autumn, precipitation acted as the most important factor affecting forest NPP, while solar radiation played the most important role in the summer. Evaportranspiration had a close correlation with NPP for coniferous forest, mixed coniferous broadleaved forest, and broadleaved deciduous forest. Spatially, forest NPP in the Da Hinggan Mountains was more sensitive to climatic changes than in the other ecological functional regions. In addition to climatic change, the degradation and improvement of forests had important effects on forest NPP. Results in this study are helpful for understanding the regional carbon sequestration and can enrich the cases for the monitoring of vegetation during long time series.MAO Dehua WANG Zongming WU Changshan SONG Kaishan REN Chunying 2014Chinese Geographical Science2014,24,6:16
18Adjuvant chemotherapy with paclitaxel and cisplatin in lymph node-positive thoracic esophageal squamous cell carcinoma显示文摘Objective:No standard postoperative adjuvant chemotherapy has ever been established in node-positive esophageal squamous cell carcinoma(ESCC).This is a study to explore the effect of postoperative paclitaxel(PTX)and cisplatin(DDP)in lymph node-positive,completely resected thoracic ESCC patients.Methods:We conducted a prospective phase II trial.Patients had pathologically node-positive thoracic ESCC with negative margins.Outcomes of disease-free survival(DFS)and overall survival(OS)were compared with a matched historical control cohort.The postoperative chemotherapy regimen consisted of 4 to 6 cycles of PTX 150mg/m2 administered intravenously on d 1 followed by DDP 50 mg/m2 on d 2 every 14 d.Results:Forty-three patients were accrued from December 2007 to May 2012 at Cancer Hospital of Chinese Academy of Medical Sciences for adjuvant chemotherapy.The historical control group consisted of 80 patients who received complete resection but no adjuvant chemotherapy during the same period of time.Of the 43 patients with adjuvant chemotherapy,37(86.0%)patients completed 4 to 6 cycles of chemotherapy.The 3-year DFS rates were56.3%in the adjuvant group and 34.6%in the control group(P=0.006).The 3-year OS rates were 55.0%in the adjuvant group and 37.5%in the control group(P=0.013).Multivariate analysis revealed that postoperative chemotherapy was the significant predictor for improved OS(P=0.005).Conclusions:Biweekly adjuvant PTX and DDP might improve 3-year DFS and OS in lymph node-positive,curatively resected thoracic ESCC patients.These conclusions warrant further study in randomized phase III clinical trials.Liangze Zhang Weiwei Li Xiao Lyu Yan Song Yousheng Mao Shaoming Wang Jing Huang 2017Chinese Journal of Cancer Research2017,29,2:15
19Evaluation of solar aided biomass power generation systems with parabolic trough field显示文摘Solar and biomass are both renewable energy resources.Using biomass as fuel is becoming more and more attractive after governments increase the tariff for the electricity from the renewable sources.However the costs of power from a biomass power generation plant depend greatly on the availability and quality of the biomass resource.The commercialization of solar alone thermal power generation is hindered by its high initial investment and low thermal efficiency.In this paper,a concept of integrating solar into a biomass power generation system is put forward.In the system the oil heated by a parabolic trough solar field is used to replace the extraction steam to preheat the feed water(entering a biomass boiler) and the previous extraction steam thus saved can continue to do work in the lower stages of turbine.The performance of the hybrid system with different replacements is analyzed and compared through two typical solar aided biomass generating units.The results show that the integration not only reduces the consumption of biomass fuel(at the same generation capacity) but is also proved to be an efficient way to convert solar thermal energy into power.The results also show that with the same solar aperture area,the higher the grade of the replaced extraction steam,the better the thermal performance and economy.HOU HongJuan YANG YongPing HU Eric SONG JiFeng DONG ChangQing MAO Jian 2011Science China(Technological Sciences)2011,54,6:15
20The revised Atlanta criteria 2012 altered the classification,severity assessment and management of acute pancreatitis显示文摘BACKGROUND:The Atlanta criteria for acute pancreatitis(AP) has been revised recently.This study was to evaluate its practical value in classification of AP,the severity assessment and management.METHODS:The clinical features,severity classification,outcome and risk factors for mortality of 3212 AP patients who had been admitted in Ruijin Hospital from 2004 to 2011 were analyzed based on the revised Atlanta criteria(RAC) and the original Atlanta criteria(OAC).RESULTS:Compared to the OAC group,the incidence of severe acute pancreatitis(SAP) was decreased by approximately one half(13.9% vs 28.2%) in the RAC group.The RAC presented a lower sensitivity but higher specificity,and its predictive value for severity and poor outcome was higher than those of the OAC.The proportion of SAP diagnosis and ICU admission in the early phase in the RAC group was significantly lower than that in the OAC group(P<0.05).Based on the RAC,the risk factors for death among SAP patients were older age,high CT severity index(CTSI),renal failure,cardiovascular failure,acute necrotic collection and walled-off necrosis.Compared to the OAC,the acute physiology and chronic health evaluation II(APACHE II) score,Ranson score,idiopathic etiology,respiratory failure and laparotomy debridement were not risk factors of death in contrast to walled-off necrosis.Interestingly,hypertriglyceridemia-related SAP had good outcomes in both groups.CONCLUSIONS:The RAC showed a higher predictive value for severity and poorer outcome than the OAC.However,the RAC resulted in fewer ICU admissions in the early phase due to its lower sensitivity for diagnosis of SAP.Among SAP cases,older age,high CTSI,renal and cardiovascular failure,complications of acute necrotic collection and walled-off necrosis were independent risk factors for mortality.Jie Huang Hong-Ping Qu Yun-Feng Zheng Xu-Wei Song Lei Li Zhi-Wei Xu En-Qiang Mao Er-Zhen Chen 2016Hepatobiliary & Pancreatic Diseases International2016,15,3:15
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