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1Deficit of mitochondria-derived ATP during oxidative stress impairs mouse MII oocyte spindles显示文摘尽管在母亲的老化和不孕的氧化应力的角色被建议了,内在的机制充分没被理解。现在的学习被设计在氧化应力下面在中期 II (MII ) 卵母细胞决定在 mitochondrial 功能和锭子稳定性之间的关系。MII 老鼠卵母细胞当面与 H2O2 被对待或渗透转变毛孔(PTP ) 的缺席块 ers cyclosporin A (CsA ) 。另外,抗氧化剂 N-acetylcysteine (NAC ) , F0/F1 synthase 禁止者 oligomycin A,线粒体 uncoupler 羰基氰化物 4-trifluoro-methoxyphenylhydrazone (FCCP ) 或加 2.5 公里 Ca2+(Th+2.5 公里 Ca2+) 的 thapsigargin 在机械学的研究被使用。卵母细胞锭子和染色体的词法分析被执行并且 mitochondrial 膜潜力(DeltaPsim ) ,细胞质的免费的钙集中([Ca2+] c ) 并且在卵母细胞以内的细胞质的 ATP 内容也是 assayed。在一时间 -- 并且 H2O2 剂量依赖者举止,锭子在卵母细胞以后被发现的 meiotic 的混乱与 H2O2 被对待,它被预告的处理与 NAC 阻止。H2O2 的管理导致了 DeltaPsim 的驱散,的增加[Ca2+] 在细胞质的 ATP 的 c 和减少铺平。到 H2O2 处理的卵母细胞的这些有害回答能被孵化前与 CsA 堵住。类似于驱散的 H2O2,两 oligomycin A 和 FCCP DeltaPsim,减少的细胞质的 ATP 内容和拆卸的 MII 卵母细胞锭子,当时高[Ca2+] c 独自没在锭子形态学上有效果。在结论,在导出线粒体的 ATP 的减少可以在氧化应力期间引起老鼠 MII 卵母细胞锭子的拆卸,大概由于 mitochondrial PTP 的开始。Xiao Zhang~(1,2,*) Xue Qing Wu~(1,3,*) Shuang Lu~(4,5,6) Ying Lu Guo~1 Xu Ma~(4,5,6) ~1Peking University First Hospital,Institute of Urology of Peking University,Beijing 100034,China ~2Reproductive and Genetic Center of Peking University First Hospital,Beijing 100034,China ~3Department of Obstetrics and Gynecology,Shanxi Medical University Second Hospital,Taiyuan 030000,China ~4Reproductive and Genetic Center of National Research Institute for Family Planning,Beijing 100038,China ~5Department of Genetics, Peking Union Medical College, Beijing 100038. China ~6 WHO Collaborative Center for Research in Human Reproduction,Beijing 100038,China 2006Cell Research2006,16,10:24
2Clostridium difficile infections in China显示文摘Clostridium difficile (C. difficile) infection has become one of the major hospital-associated infections in West-ern countries in the last two decades. However, there is limited information on the status of C. difficile infection inChinese healthcare settings. Given the large and increasing elderly population and the well-recognized problem ofover-prescribing of broad spectrum antibiotics in China, it is critical to understand the epidemiology and potentialrisk factors that may contribute to C. difficile infection in China. A literature review of available published studies,including those in Chinese language-based journals, was conducted. A review of the currently available literaturesuggested the presence of C. difficile infections in China, but also suggested that these infections were not particu-larly endemic. This finding should lead to better designed and greatly expanded studies to provide a more reliableepidemiologically-based conclusion on the actual status of C. difficile infection in China, including the identifica-tion of any associated risk factors. Such information is ultimately valuable to develop appropriate strategies to pre-vent C. difficile infection and the vast negative impact of such infections in China and other developing countries.Ke Jin a,b,c,Shixia Wang c,d,Zuhu Huang a,b,c,Shan Lu b,c,daDepartment of Infectious Diseases,bJiangsu Province Key Laboratory in Infectious Diseases,cChina-US Vaccine ResearchCenter,the First Affiliated Hospital of Nanjing Medical University,Nanjing,Jiangsu 210029,China d Department of Medicine,University of Massachusetts Medical School,Worcester,MA 01655,USA. 2010The Journal of Biomedical Research2010,24,6:14
3Carcinogenic potential of duodenal reflux juice from patients with long-standing postgastrectomy显示文摘AIM To determine, whether study on thecarcinogenic potential of reflux juice frompatients with remote gastrectomy could clarifythe inherent relationship between duodenalreflux and gastric stump cancer.METHODS A total of 37 reflux juice samples(13 Billroth T, 24 Billroth Ⅱ ) were employed inthe present study. A two- stage transformationassay using BALB/c 3T3 cells was carried out totest the initiating or promoting activity of thesesamples.RESULTS Two of 18 (11.1%) reflux samplesexerted initiating activities, whereas 9/19(47.4%) samples enhanced the MNNG-initiafingcell transformation, suggesting the duodenalreflux juice might more frequently possess thetumor-promoter activity (P = 0. 029). In addition,there was no difference in initiating activities ofthe samples irrespective of surgical procedures(P=0.488), while Billroth Ⅱ samples exhibitedstronger tumor-promoter activity than Billroth Ⅰsamples (P = 0.027). Furthermore, the promoteractivities were well correlated with thehistological changes of the stomas (rs = 0.625,P = 0.004), but neither their cytotoxicities norinitiating activities had this correlation( Probabilities were 0.523 and 0.085,respectively).CONCLUSION The duodenal reflux juice frompatients with remote postgastrectomy did havecarcinogenic potential, and suggested thattumor-promoting activity should principallyaccount for the high incidence of gastric cancerin gastrectomy patients. In contrast, it isdifficult to explain the high stump-cancerincidence with the 'N-nitroso compounds'theory-a popular theory for the intact stomachcarcinogenesis, and it seemed to be justified tofocus chemoprevention of this cancer on thetumor-promoting potential of reflux juice.Zhe Fu Ma~1 Zhong Yu Wang~1 Jun Ran Zhang~2 Peng Gong~1 Hai Long Chen~1 ~1Departrnent of General Surgery,First Hospital,Dalian Medical University,Dalian 116011,China ~2Department of Radiation Oncology,Massachusetts General Hospital and Harvard Medical School,Charlestown,MA 02129,USADr.Zhe Fu Ma graduated from Shanxi Medical College in 1993,nowPh.D.,M.D.in Department of Surgery,Dalian Medical University,majoring gastroenteric cancer,having 4 papers published.Correspondence to:Dr.Zhe Fu Ma.Department of General Surgery,First Hospital,Dalian Medical University,Dalian 116011,China Tel.0086-411-4720334 2001World Journal of Gastroenterology2001,7,3:9
4High expression level of EDIL3 in HCC predicts poor prognosis of HCC patients显示文摘AIM:To determine the role of epidermal growth factor-like repeats and discoidin I-like domains 3(EDIL3)in pathogenesis of hepatocellular carcinoma(HCC)by investigating the EDIL3 expression in HCC and its prognostic value for HCC.METHODS:EDIL3 expression was detected in 101 HCC surgical tissue samples with immunohistochemistry method,and its relation with clinicopathologic features and prognosis of HCC patients was analyzed.RESULTS:EDIL3 was highly expressed in 48.5%of the HCC patients.Although the EDIL3 expression level did not correlate with any clinicopathological parameters,KaplanMeier survival analysis showed that high expression level of EDIL3 resulted in a significantly poor prognosis of HCC patients(log-rank test,P=0.010).Multivariate Cox's analysis showed that the EDIL3 expression level was a significant and independent prognostic parameter for the overall survival rate of HCC patients(hazard ratio=1.978,95%confidence interval =1.139-3.435,P=0.015).CONCLUSION:High expression level of EDIL3 pre-dicts poor prognosis of HCC patients.EDIL3 may be a potential target of antiangiogenic therapy for HCC.Jian-Cong Sun,Xiao-Ting Liang,Ke Pan,Hui Wang,Jing-Jing Zhao,Jian-Jun Li,Hai-Qing Ma,Yi-Bing Chen,Jian-Chuan Xia,State Key Laboratory of Oncology in South China,Cancer Center,Sun Yat-Sen University,Guangzhou 510060,Guangdong Province,China 2010World Journal of Gastroenterology2010,16,36:7
5Object-level change detection based on full-scale image segmentation and its application to Wenchuan Earthquake显示文摘Aiming at object fragmentation and poor detection results caused by discontinuous segmentation scale in object-level change detection,a new object-level change detection method based on the full-scale object tree is presented in this paper.The core idea of this new algorithm is to establish the full-scale object tree based on convexity model theory and integrate full-scale image segmentation techniques and change detection into the whole process.Some Wenchuan Earthquake images are taken as an example to discuss the new method for earthquake damage detection and evaluation in urban area,landslide detection,and extraction of barrier lake boundary.The application shows that the new method is robust and it provides an advanced tool for the quantitative detection and evaluation of earthquake damage.GONG JianYa,SUI HaiGang,SUN KaiMin,MA GuoRui & LIU JunYi State Key Laboratory of Information Engineering in Surveying,Mapping and Remote Sensing,Wuhan University,Wuhan 430072,China 2008Science China(Technological Sciences)2008,51,S2:7
6Once-only flexible sigmoidoscopy screening in prevention of colorectal cancer: a multicentre randomised controlled trial显示文摘Wendy S Atkin Rob Edwards Ines Kralj-Hans Kate Wooldrage Andrew R Hart John MA Northover D Max Parkin Jane Wardle Stephen W Duffy Jack Cuzick 2010The Lancet2010,,9726:4
7Clinical scenarios for the use of S100β as a marker of hepatic encephalopathy显示文摘AIM: To evaluate the association between serum concentrations of S100β in patients with cirrhosis and the presence of low grade hepatic encephalopathy(HE).METHODS: This was a cross-sectional study. The population was categorized into four groups healthy subjects, cirrhosis without HE, cirrhosis with covert hepatic encephalopathy(CHE) and cirrhosis with overt HE. Kruskal-Wallis, Mann Whitney's U with Bonferroni adjustment Spearman correlations and area under the ROC were used as appropriate.RESULTS: A total of 61 subjects were included, 46 cirrhotic patients and 15 healthy volunteers. S100β values were different among all groups, and differences remained significant between groups 1 and 2(P < 0.001), and also between groups 2 and 3(P = 0.016), but not between groups 3 and 4. In cirrhotic patients with HE S100β was higher than in patients without HE [0.18(0.14-0.28) ng/m L vs 0.11(0.06-0.14) ng/m L, P < 0.001]. There was a close correlation between serum concentrations of S100β and psychometric hepatic encephalopathy score in patients with cirrhosis without HE compared to the patients with cirrhosis with CHE(r =-0.413, P = 0.019). ROC curve analysis yielded > 0.13 ng/m L as the best cutoff value of S100β for the diagnosis of HE(sensitivity 83.3%, specificity 63.6%).CONCLUSION: Serum concentrations of S100β are higher in patients with cirrhosis than in healthy volunteers, and are further increased in the presence of hepatic encephalopathy. The results suggest that serum biomarkers such as S100β could help in the correct characterization of incipient stages of HE.Andrés Duarte-Rojo Astrid Ruiz-Margáin Ricardo U Macias-Rodriguez Francisco Javier Cubero José Estradas-Trujillo Rosa Ma Munoz-Fuentes Aldo Torre 2016World Journal of Gastroenterology2016,22,17:4
8New Development of China-Russia-India Triangle显示文摘Since 2001, positive improvement has occurred in the trianglerelationship between China, Russia and India. The foreignministers of the three nations met in Russia recently, symbolizingthe launching of substantive triangular cooperation.Ma Jiali is Research Professor at CICIR. He specializes in South Asian security, especially in India’s foreign policy. He is the author of three books, such as Pay Close Attention to India: A Rising Power which is very influential. He was one of the delegates for Track Two Dialogue between China and India for all of four rounds and a delegate for Track Two Dialogue between China, Russia and India. He is also a member of Eminent Persons Group Forum between China and India. 2005Contemporary International Relations2005,15,7:4
9Automatic segmentation of foveal avascular zone based on adaptive watershed algorithm in retinal optical coherence tomography angiography images显示文摘The size and shape of the foveal avascular zone(FAZ)have a strong positive correlation with several vision-threatening ret inovascular diseases.The identification,segmentation and analysis of FAZ are of great significance to clinical diagnosis and treatment.We presented an adaptive watershed algorithm to automatically extract F AZ from retinal optical coherence tomography angiography(OCTA)images.For the traditional watershed algorithm,'over-segmentation'is the most common problem.FAZ is often incorrectly divided into multiple regions by redundant'dams'.This paper analyzed the relationship between the'dams'length and the maximum inscribed circle radius of FAZ,and proposed an adaptive watershed algorithm to solve the problem of'over-segmentation'.Here,132 healthy retinal images and 50 diabetic retinopathy(DR)images were used to verify the accuracy and stability of the algorithm.Three ophthal-mologists were invited to make quan titative and qualitative evaluations on the segmentation results of this algorithm.The quantitative evaluation results show that the correlation coffi-cients between the automatic and manual segmentation results are 0.945(in healthy subjects)and 0.927(in DR patients),respectively.For qualitative evaluation,the percentages of'perfect segmentation'(score of 3)and'good segmentation'(score of 2)are 99.4%(in healthy subjects)and 98.7%(in DR patients),respectively.This work promotes the application of watershed algorithm in FAZ segmentation,making it a useful tool for analyzing and diagnosing eye diseases.Jian Liu Shixin Yan Nan Lu Dongni Yang Chunhui Fan Hongyu Lv Shuanglian Wang in Zhu Yuqian Zhao Yi Wang Zhenhe Ma Yao Yu 2022Journal of Innovative Optical Health Sciences2022,15,1:3
10Once-only flexible sigmoidoscopy screening in prevention of colorectal cancer: a multicentre randomised controlled trial显示文摘Wendy S Atkin Rob Edwards Ines Kralj-Hans Kate Wooldrage Andrew R Hart John MA Northover D Max Parkin Jane Wardle Stephen W Duffy Jack Cuzick 20102010 (9726)2010,,9726:3
11Prospective, naturalistic study of open-label OROS methylphenidate treatment in Chinese school-aged children with attention-deficit/hyperactivity disorder显示文摘背景注意赤字活动过度混乱( ADHD )在童年期间是最普通的心理混乱之一,由活动过度, impulsivity 和疏忽的核心症状描绘了并且自己把大负担放在孩子上,他们的家庭和 society.Osmotic 释放口头的系统 methylphenidate (OROS哩/时)开发克服一些限制的一次每日的控制版本明确的表达与立即版本的 methylphenidate (红外哩/时)被联系 .ItZHENG Yi WANG Yu-feng QIN Jiong WANG Li-wen ZOU Li-ping J IN Xing-ming XU Tong WANG Yi OI Yuan-li GONG Mei-en YIN Qing-yun MAI Jian-ning JING Jin LUO Xiang-yang MA Hong-wei LI Hai-bo XIE Ling LIYan Kuang Gui-fang YI Ming-ji WANG Feng ZHU Xiao-hua YAO Yan-bin 2011Chinese Medical Journal2011,,20:2
12Dynamic Programming for Multidimensional Stochastic Control ProblemsJin Ma Department of Mathematics,Purdue University,West Lafayette,IN 47907-1395,U S A E-mail:majin@math.purdue,eduJiongmin Yong Laboratory of Mathematics for Nonlinear Science,Department of Mathematics,and Institute of Mathematical Finance,Fudan University,Shanghai 200433,P.R.China E-mail:jyong@fudan,edu.cn 1999Acta Mathematica Sinica,English Series1999,15,4:2
13Once-only flexible sigmoidoscopy screening in prevention of colorectal cancer: a multicentre randomised controlled trial显示文摘Wendy S Atkin Rob Edwards Ines Kralj-Hans Kate Wooldrage Andrew R Hart John MA Northover D Max Parkin Jane Wardle Stephen W Duffy Jack Cuzick 2010The Lancet . 2010 (9726)2010,,:2
1418 F-fluorodeoxyglucose positron emission tomography–computed tomography for the evaluation of bone metastasis in patients with gastric cancer显示文摘Dae Won Ma Jie-Hyun Kim Tae Joo Jeon Yong Chan Lee Mijin Yun Young Hoon Youn Hyojin Park Sang In Lee 2013Digestive and Liver Disease2013,,:2
15Modulation of inflammatory response by hippocampus of rats exposed to cerebral ischemia/reperfusion显示文摘Coll the PPAR ino M Aragno M Ma oxidative stress -gamma agonists in stro and the cola R et a7 2006Eur J Pharmacol2006,530,:1
16patient with multiple sclerosis显示文摘Valsasina P Rocca MA Agosta F Mean diffusivity and frac- tional anisotropy histograms of the cervical cord in MS patients 2005Neuroimage2005,26,3:1
17Leptin activates anorexigenic POMC neural network in thearcuate nucleus显示文摘Cowley MA Smart JL Rubinste in M 2001Nature2001,411,6836:1
18Diagnosis of near - fatal pulmonary embolus - in - transit with focused eehoear- diography显示文摘Fischer Jl Huis in't Veld MA Orland M 2013J Emerg Med2013,45,2:1
19A quantitative study using a tissue-digestion method显示文摘Kobayashi A Freeman MA Bonfield W Number of polyethylene particles and osteolysis in total joint replacements 1997J Bone Joint Surg Br1997,79,5:1
20Activity assessment of Tunisian olive leaf extracts against the trophozoite stage of Acanthamoeba显示文摘Ines Sifaoui Atteneri López-Arencibia Carmen Ma Martín-Navarro Nadia Chammem Mondher Mejri Jacob Lorenzo-Morales Manef Abderabba José E. Pi?ero 2013Parasitology Research2013,,8:1
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