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472篇 您的检索式:作者名="Mohammad J"
    题名 作者 年代 出处 被引量
1Accuracy of urea breath test in Helicobacter pylori infection: Meta-analysis显示文摘AIM: To quantitatively summarize and appraise the available evidence of urea breath test(UBT) use to diagnose Helicobacter pylori(H. pylori) infection in patients with dyspepsia and provide pooled diagnostic accuracy measures.METHODS: We searched MEDLINE, EMBASE, Cochrane library and other databases for studies addressing the value of UBT in the diagnosis of H. pylori infection. We included cross-sectional studies that evaluated the diagnostic accuracy of UBT in adult patients with dyspeptic symptoms. Risk of bias was assessed using QUADAS(Quality Assessment of Diagnostic Accuracy Studies)-2 tool. Diagnostic accuracy measures were pooled using the random-effects model. Subgroup analysis was conducted by UBT type(13C vs 14C) and by measurement technique(Infrared spectrometry vs Isotope Ratio Mass Spectrometry).RESULTS: Out of 1380 studies identified, only 23 met the eligibility criteria. Fourteen studies(61%) evaluated 13 C UBT and 9 studies(39%) evaluated 14 C UBT. There was significant variation in the type of reference standard tests used across studies.Pooled sensitivity was 0.96(95%CI: 0.95-0.97) andpooled specificity was 0.93(95%CI: 0.91-0.94). Likelihood ratio for a positive test was 12 and for a negative test was 0.05 with an area under thecurve of 0.985. Meta-analyses were associated with a significant statistical heterogeneity that remained unexplained after subgroup analysis. The included studies had a moderate risk of bias.CONCLUSION: UBT has high diagnostic accuracy for detecting H. pylori infection in patients with dyspepsia. The reliability of diagnostic meta-analytic estimates however is limited by significant heterogeneity.Mazen Ferwana Imad Abdulmajeed Ali Alhajiahmed Wedad Madani Belal Firwana Rim Hasan Osama Altayar Paul J Limburg Mohammad Hassan Murad Bandar Knawy 2015World Journal of Gastroenterology2015,21,4:45
2Omental flaps reduces complications after pancreaticoduodenectomy显示文摘BACKGROUND:Major complications after pancreaticoduodenectomy are usually caused by a leaking pancreaticojejunal anastomosis.Omental flaps around various anastomoses were used to prevent the formation of fistula.METHODS:We reviewed 147 patients who had undergone pancreaticoduodenectomy between March 2006 and March2012.The patients were divided into 2 groups according to the application of omental flaps around various anastomoses:group A(101 patients)who underwent omental wrapping procedure;group B(46 patients)who did not undergo the omental wrapping procedure.Perioperative data of the two groups were reviewed to assess the effectiveness of omental flap procedure in the prevention of pancreatic fistula and other complications.RESULTS:No differences were observed in the clinical characteristics between the 2 groups.The incidences of pancreatic fistula(4.0%vs 17.4%),post-pancreatectomy hemorrhage(0vs 6.5%),biliary fistula(1.0%vs 13.0%),and delayed gastric emptying(4.0%vs 17.4%)were significantly less frequent in group A.The overall morbidity(18.8%vs 47.8%)and hospital stay(8.3 vs 9.6 days)were also significantly lower in group A than in group B.CONCLUSIONS:Omental flaps around various anastomoses after pancreaticoduodenectomy can reduce the incidences of pancreatic fistula,biliary fistula,post-pancreatectomy hemorrhage and delayed gastric emptying.This procedure is simple and effective to reduce the overall morbidity after pancreaticoduodenectomy.Omar J Shah Sadaf A Bangri Manmohan Singh Reyaz A Lattoo Mohammad Y Bhat 2015Hepatobiliary & Pancreatic Diseases International2015,14,3:19
3S100A8/A9 induces autophagy and apoptosis via ROS-mediated cross-talk between mitochondria and lysosomes that involves BNIP3显示文摘建筑群由 S100 钙绑定蛋白质家庭,的二个成员形成了 S100A8/A9,在不同起源的各种各样的房间施加导致 apoptosis 活动。这里,我们内在的分子的机制包含的现在的证据两个都规划了房间死亡我(PCD 我, apoptosis ) 并且象死亡一样的 PCD II (autophagy ) 。有 S100A8/A9 的房间的处理引起了 Beclin-1 表示以及 Atg12-Atg5 形成的增加。S100A8/A9-induced 房间死亡被特定的 PI3-kinase 班 III 禁止者部分禁止, 3-methyladenine (3 麻省) ,并且由液泡 H+-ATPase 禁止者, bafilomycin-A1 (Baf-A1 ) 。S100A8/A9 挑起了 BNIP3 的 translocation, BH3 仅仅 pro-apoptotic Bcl2 家庭成员,到线粒体。与这发现一致,螖 T M-BNIP3 overexpression 部分禁止了 S100A8/A9-induced 细胞死亡,减少的反应的氧种(ROS ) 产生,并且部分在 S100A8/A9-treated 细胞在 mitochondrial transmembrane 潜力免于减少。另外,任何一个螖 T M-BNIP3 overexpression 或 N-acetyl-L-cysteine 合作处理减少了在与 S100A8/A9 对待的房间的 lysosomal 激活。我们的数据显示 S100A8/A9-promoted 房间死亡通过线粒体的串音发生,经由 ROS 和这个过程的 lysosomes 包含 BNIP3。Saeid Ghavami Mehdi Eshragi Sudharsana R Ande Walter J Chazin Thomas Klonisch Andrew J Halayko Karol D Mcneill Mohammad Hashemi Claus Kerkhoff Marek Los 2010Cell Research2010,20,3:13
4Cardiotrophin 1 stimulates beneficial myogenic and vascular remodeling of the heart显示文摘出生后的心通过 hypertrophic 生长适应应力和超载,可能病理学或有益的一个过程(生理的肥大) 。生理的肥大改进心脏的性能在健康并且 diseased 个人,然而,宣传这有利改编的机制仍然保持糟糕定义。我们识别 cytokine cardiotrophin (CT1 ) 1 作为能够包括导致的导出 cardiomyocyte 的 angiogenic 信号的心肌层,和刺激的短暂、可逆的肥大概括心的生理的生长的特色的一个因素增加了由脉管形成。CT1 的能力从 caspase 激活的调停 CK2 的制止发源导致生理的肥大,阻止到无限制的病理学的生长的转变。外长的 CT1 蛋白质交货稀释了病理并且在正确的心失败的一个严格的模型恢复了可收缩的功能,建议为这难处理的心脏病的一种新奇处理选择。Mohammad Abdul-Ghani Colin Suen Baohua Jiang Yupu Deng Jonathan J Weldrick Charis Putinski Steve Brunette Pasan Femando Tom T Lee Peter Flynn Frans H H Leenen Patrick G Burgon Duncan J Stewar Lynn A Megeney 2017Cell Research2017,27,10:8
55~60岁人群伤寒Vi多糖疫苗和A群脑膜炎球菌多糖疫苗大规模接种结果分析显示文摘为考核国产伤寒Vi多糖疫苗在现场试验的效果 ,以A群脑膜炎球菌多糖疫苗为对照 ,对广西壮族自治区河池市城市和农村的 5~ 6 0岁居民进行了一次大规模接种。结果显示 :应接种对象 1180 71人 ,实际接种 92 4 76人 ,接种率为 78 32 % ,其中伤寒Vi多糖疫苗为 76 87% ,A群脑膜炎球菌多糖疫苗为 79 6 9% ;接种率最高的组群接种率为 92 4 8% ,最低为 6 5 2 0 %。按城乡划分 ,城区的接种率为 77 2 9% ,农村的接种率为 80 5 8% ,组群接种率的高低分布无明显的地理性差异。 5~ 9岁接种率最高为 89 6 5 % ,2 0~ 2 9岁接种率最低为 6 9 0 7% ;男女接种率分别为79 0 7%和 82 11%。有 6 6人被观察到或报告出现不良反应 ,不良反应发生率为 71 37/ 10万。表明两种疫苗的安全性好。在大规模疫苗接种中 ,充分发挥当地干部的宣传组织作用 ,并把接种的有关信息提前通知当地居民 ,对于提高接种率十分重要。补漏接种能使接种率低的组群得到显著的提高。在大规模疫苗接种中必须严格遵守安全注射操作程序 ,避免发生不安全注射事故。两种疫苗的平均接种率、年龄别接种率、性别接种率、组群接种率的地理分布均达到了较好均衡性 ,是可比的 。杨进 司国爱 曾竣 张杰 梁贵臣 梁大斌 廖和壮 李翠云 黄焕新 董柏青 杨宏徽 Rion Leon Ochiai Carolina Danovaro Ali Mohammad Camilo J Acosta 2004中国计划免疫2004,10,4:6
6以人口为基数的伤寒发热监测结果分析显示文摘目的及时了解、掌握伤寒高发区流行情况。方法在广西河池市的金城江辖区内的金城江镇、东江镇建立以人口为基数的监测系统开展伤寒监测,监测内容包括对发热疑似病人进行病原学、血清学检测;对就诊发热病例进行登记。监测区内的各级医疗机构及大部分的个体诊所均作为监测点。以病原学为确诊依据,肥达试验作为辅助诊断依据。结果监测区内4年的伤寒副伤寒发病数为99例,年均年龄段发病率为20.6/10万。病原学监测9049份标本,分离出伤寒、副伤寒菌99株,其中甲型副伤寒沙门氏菌占70.1%,伤寒沙门氏菌仅占29.9%;伤寒副伤寒症状相似,以发热头痛为主要症状。结论监测区内以散发病例为主要流行趋势,监测的发病率低于以往的常规疫情报告,甲型副伤寒沙门菌是优势菌型;肥达试验在常规监测中的诊断意义较差,确诊伤寒、副伤寒病例的肥达试验诊断符合率低。张杰 董柏青 杨进 王鸣柳 梁贵臣 司国爱 曾竣 谭冬梅 廖和壮 梁大斌 李翠云 吴兴华 RLeon Ochiai Jin-kyung Park Ali Mohammad Camilo J Acosta J.D.Clemens 2006应用预防医学2006,12,6:4
7A comparative risk assessment of burden of disease and injury attributable to 67 risk factors and risk factor clusters in 21 regions, 1990–2010: a systematic analysis for the Global Burden of Disease Study 2010显示文摘Stephen S Lim Theo Vos Abraham D Flaxman Goodarz Danaei Kenji Shibuya Heather Adair-Rohani Mohammad A AlMazroa Markus Amann H Ross Anderson Kathryn G Andrews Martin Aryee Charles Atkinson Loraine J Bacchus Adil N Bahalim Kalpana Balakrishnan John Balmes S 20122012 (9859)2012,,9859:3
8Interactive labelling of a multivariate dataset for supervised machine learning using linked visualisations,clustering,and active learning显示文摘Supervised machine learning techniques require labelled multivariate training datasets.Many approaches address the issue of unlabelled datasets by tightly coupling machine learning algorithms with interactive visualisations.Using appropriate techniques,analysts can play an active role in a highly interactive and iterative machine learning process to label the dataset and create meaningful partitions.While this principle has been implemented either for unsupervised,semi-supervised,or supervised machine learning tasks,the combination of all three methodologies remains challenging.In this paper,a visual analytics approach is presented,combining a variety of machine learning capabilities with four linked visualisation views,all integrated within the mVis(multivariate Visualiser)system.The available palette of techniques allows an analyst to perform exploratory data analysis on a multivariate dataset and divide it into meaningful labelled partitions,from which a classifier can be built.In the workflow,the analyst can label interesting patterns or outliers in a semi-supervised process supported by active learning.Once a dataset has been interactively labelled,the analyst can continue the workflow with supervised machine learning to assess to what degree the subsequent classifier has effectively learned the concepts expressed in the labelled training dataset.Using a novel technique called automatic dimension selection,interactions the analyst had with dimensions of the multivariate dataset are used to steer the machine learning algorithms.A real-world football dataset is used to show the utility of mVis for a series of analysis and labelling tasks,from initial labelling through iterations of data exploration,clustering,classification,and active learning to refine the named partitions,to finally producing a high-quality labelled training dataset suitable for training a classifier.The tool empowers the analyst with interactive visualisations including scatterplots,parallel coordinates,similarity maps for records,and a new similarity map for partitions.Mohammad Chegini Jürgen Bernard Philip Berger Alexei Sourin Keith Andrews Tobias Schreck 2019Visual Informatics2019,3,1:3
9口头尸检对河池市5~60岁死亡病例进行死因评估结果分析显示文摘目的分析河池市5~60岁居民死亡主要原因,分析口头尸检(VerbalAutopsy,VA)进行死因调查的效果。方法建立死亡监测系统,对所有报告的监测区内5~60岁死亡个案进行口头尸检调查。结果2002年7月—2003年6月金城江镇、东江镇共死亡624人,全人口总粗死亡率为4.67‰,标化死亡率为5.34‰,男女之比为1.71∶1;5~60岁死亡病例248例,粗死亡率为2.10‰;导致5~60岁居民主要死亡原因为意外死亡、恶性肿瘤、心脑血管疾病、消化系统疾病等,其中意外死亡占死亡构成比的1/3;通过VA进行死因调查,使3.00%的错误死因定义得到更正、5.00%的不明死因得到诊断;无因伤寒导致的死亡。结论交通事故成为当地5~60岁居民死亡的主要因素;随着社会经济发展,伤寒等肠道传染病已不是导致死亡的重要因素;使用VA对于死因的判定比一般的监测系统报告更为准确。杨进 韦士良 刘莉莉 黄兰森 温贤莲 张杰 曾竣 董柏青 吴兴华 RLeon Ochiai Ali Mohammad Camilo J Acosta 2004中国初级卫生保健2004,18,6:3
10组群随机试验在伤寒疫苗效果观察中的应用研究显示文摘目的 用组群随机试验实现伤寒Vi疫苗效果观察的研究设计和实施应用。方法 采用组群随机试验方法确定试验组和对照组所需样本量 ,并组织实施大规模疫苗接种 ,在试验组接种伤寒Vi疫苗、对照组接种流脑疫苗。结果 根据组群随机试验方法计算共需要观察对象为 96 12 1人 ,分为 10 8个组群。根据组群大小、地理位置 (城乡 )及性质 (学校、机关、厂矿、人口特征 )分层配对 ,确定试验组分为 5 3个组群共 4 4 0 5 4人 ,对照组为 5 4个组群共 4 84 2 2人。对两组间各主要混杂因子 (年龄、性别、居住地点、主要人群的经济收入、受教育程度、主要职业 )等进行分析 ,发现两组之间总体相差不大 ,具有较好的均衡性与可比性。结论 组群随机抽样法应用于大规模疫苗效果观察试验 ,能较好地控制组间混杂因子 ,使干预的实际效果得到科学的评价 ;实施也比较简单 ,被干预对象容易接受 ,可行性高。董柏青 杨进 唐振柱 杨宏徽 曾竣 张杰 王鸣柳 梁贵臣 司国爱 李翠云 梁大斌 廖和壮 Rion Leo nOchiai Ali Mohammad Camilo J Acosta John Clemens 2005中华流行病学杂志2005,26,2:3
11A selective approach to the surgical management of periampullary cancer patients and its outcome显示文摘BACKGROUND: Pancreaticoduodenectomy is a high risk, complex, technically challenging operation associated with significant perioperative morbidity and mortality. This study on the surgical management of periampullary cancer patients is based on our experience in a period of nearly 13 years.METHODS: The study was conducted on two groups of patients: group A included 42 patients who were treated between January 2000 and September 2005 and group B included 134 patients who were treated between October 2005 to October 2012. Preoperative, intraoperative and postoperative details of all these patients were collected, tabulated and analyzed to assess the impact of the selective approach introduced in the department with effect from October 2005.RESULTS: Intraoperative details revealed highly significant differences in the management of the two groups of patients in respect of operative time (250.4 vs 126.6 minutes; P<0.001), operative blood loss (1070.2 vs 414.9 m L; P<0.001) and intraoperative blood transfusion (1.4 vs 0.2 units; P<0.001). Variations between the two groups in the frequency of complications were found to be statistically insignificant. However, the difference between the two groups in the overall morbidity of patients (47.6% vs 26.1%; P=0.009) and the length of their hospital stay (11.8 vs 7.8 days; P<0.001) were significant.CONCLUSION: A selective approach applied to the surgical management of periampullary cancer patients is a step in the right direction.Omar J Shah Irfan Robbani Parveen Shah Sadaf A Bangri Irfan J Khan Mohammad Y Bhat Manmohan Singh 2014Hepatobiliary & Pancreatic Diseases International2014,13,6:3
12Disability-adjusted life years (DALYs) for 291 diseases and injuries in 21 regions, 1990–2010: a systematic analysis for the Global Burden of Disease Study 2010显示文摘Christopher J L Murray Theo Vos Rafael Lozano Mohsen Naghavi Abraham D Flaxman Catherine Michaud Majid Ezzati Kenji Shibuya Joshua A Salomon Safa Abdalla Victor Aboyans Jerry Abraham Ilana Ackerman Rakesh Aggarwal Stephanie Y Ahn Mohammed K Ali Mohammad A 2012The Lancet . 2012 (9859)2012,,9859:2
13A comparative risk assessment of burden of disease and injury attributable to 67 risk factors and risk factor clusters in 21 regions, 1990–2010: a systematic analysis for the Global Burden of Disease Study 2010显示文摘Stephen S Lim Theo Vos Abraham D Flaxman Goodarz Danaei Kenji Shibuya Heather Adair-Rohani Mohammad A AlMazroa Markus Amann H Ross Anderson Kathryn G Andrews Martin Aryee Charles Atkinson Loraine J Bacchus Adil N Bahalim Kalpana Balakrishnan John Balmes S 2012The Lancet2012,,9859:2
14Increase biliary protein precedes gallstone formation显示文摘A Tames M Mohammad Z A Toel J R 1994Digestive Diseases and Sciences1994,39,:1
15Automatic detection of erythemato-squamous diseases using PSO-SVM based on association rules显示文摘Mohammad J A Davar G 2013Engineering Applications of Artificial Intelligence2013,26,1:1
16Incidence of up- per limb venous thrombosis associated with peripherally inserted central catheters (PICC) 显示文摘Abdullah B J Mohammad N Sangkar JV 2005Br J Radiol2005,78,:1
17Modified CMC:Part 1-Optimized synthesis of carboxymethyl cellulose-g-polyacrylonitrile显示文摘Mohammad J Zohuriaan-Mehr Ali Pourjavadi 2005Iranian Polymer Journal2005,14,2:1
18Numerical optimization technique for design of wheel profiles 显示文摘Hamid J Behrooz F Mohammad A E Asghar N A 2008Wear2008,264,1:1
19Novel modified starch-xanthan gum hydrogels for controlled drug delivery:Synthesis and characterization显示文摘Alireza S LIU Q Mohammad J 2010Carbohydrate Polymers2010,79,:1
20Classification and comparison of maximum power point tracking techniques for photovoltaic system: a review显示文摘All R R Mohammad H M Shahriar J 2013Renewable and Sustainable Energy Reviews2013,,19:1
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