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1Direct reprogramming of human fibroblasts into dopaminergic neuron-like cells显示文摘外长的 dopaminergic 神经原(DA 神经原) 的移植是为治疗 Parkinson 的疾病(PD ) 的一条有希望的途径。然而,主要跌倒块是施主 DA 神经原的可靠来源的缺乏。这里,我们证明五 transcriptional 因素 Mash1, Ngn2, Sox2, Nurr1,和 Pitx3 的联合直接并且有效地装改编人成纤维细胞进 DA 像神经原的房间。为为 DA 神经原的各种各样的标记积极的染色的 reprogrammed 房间。他们也显示出典型 DA 举起和生产性质。而且,他们展出了 DA 神经原特定的 electrophysiological 侧面。最后,他们在一个老鼠 PD 模型提供了征兆的地势。因此,我们的直接 reprogrammed DA 像神经原的房间是为 PD 的房间代替治疗的有希望的来源。Xinjian Liu Fang Li Elizabeth A Stubblefield Barbara Blanchard Toni L Richards Gaynor A Larson Yujun He Qian Huang Aik-Choon Tan Dabing Zhang Timothy A Benke John R Sladek Nancy R Zahniser Chuan-Yuan Li 2012Cell Research2012,22,2:14
2Relationship between the exocrine and endocrine pancreas after acute pancreatitis显示文摘AIM:To determine the prevalence and time course of pancreatic exocrine insufficiency in individuals with newly diagnosed prediabetes or diabetes mellitus after acute pancreatitis.METHODS:Relevant literature cited in three major biomedical journal databases(EMBASE,MEDLINE,and Scopus)was reviewed independently by two authors.There were no language constraints but the search was limited to human studies.Studies included were cohort studies of adult patients who were discharged after an attack of acute pancreatitis.Patients were excluded if they were under 18 years of age or had a previous diagnosis of prediabetes or diabetes mellitus,pancreatic exocrine insufficiency,or chronic pancreatitis.The main outcome measure was the prevalence of concomitant pancreatic exocrine insufficiency in patients who were diagnosed with prediabetes and diabetes mellitus after an attack of acute pancreatitis.Subgroup analysis was conducted for patients who were diagnosed with prediabetes only and those who were diagnosed withdiabetes mellitus only.Subgroup analysis looking at the time course of concomitant pancreatic exocrine and endocrine insufficiency was also conducted.Pooled prevalence and corresponding 95%confidence intervals were calculated for all outcome measures and P-values<0.05 were deemed statistically significant.RESULTS:Eight clinical studies comprising of 234patients met all eligibility criteria.The pooled prevalence of newly diagnosed prediabetes or diabetes in individuals after acute pancreatitis was 43%(95%CI:30%-56%).The pooled prevalence of pancreatic exocrine insufficiency in individuals after acute pancreatitis was 29%(95%CI:19%-39%).The prevalence of concomitant pancreatic exocrine insufficiency in individuals with newly diagnosed prediabetes or diabetes was 40%(95%CI:25%-55%).The prevalence of concomitant pancreatic exocrine insufficiency among individuals with prediabetes alone and diabetes mellitus alone was 41%(95%CI:12%-75%)and 39%(95%CI:28%-51%),respectively.Further analysis showed that the prevalence of concomitant pancreatic exocrine insufficiency in individuals with prediabetes or diabetes decreases over time after an attack of acute pancreatitis.CONCLUSION:Pancreatic exocrine insufficiency occurs in 40%of individuals with newly diagnosed prediabetes or diabetes mellitus after acute pancreatitis.Further studies are needed to investigate the pathogenesis of diabetes in this setting.Stephanie L M Das James I C Kennedy Rinki Murphy Anthony R J Phillips John A Windsor Maxim S Petrov 2014World Journal of Gastroenterology2014,20,45:9
3Effect of music on patients undergoing outpatient colonoscopy显示文摘AIM: To evaluate the effect of relaxing music during colonoscopy under low-dose conscious sedation, on patient satisfaction, scope insertion time and procedure duration, medication doses, and the perceived adequacy of sedation and scope insertion difficulty on the part of the endoscopist. METHODS: One hundred and sixty-seven consecutive adult outpatients presenting for routine colonoscopy under low-dose conscious sedation were randomized to undergo their procedures either with music played during the procedure or no music played. RESULTS: There were no statistical differences between the two groups in terms of meperidine dose, midazolam dose, time to reach the cecum, total procedure time, endoscopist assessment of scope insertion difficulty, endoscopist assessment of adequacy of sedation, or the pain experience of the patients during their procedure. The music group did report significantly better overall procedure satisfaction as compared to the non music group on two of our three different scales. CONCLUSION: While music does not result in shortened procedure times, lower doses of sedative medications or perceived patient pain, the patients who have music playing during their procedures report modestly greater satisfaction with their procedures.Matthew L Bechtold Rodney A Perez Srinivas R Puli John B Marshall 2006World Journal of Gastroenterology2006,12,45:8
4Near-infrared fluorescence imaging of a solitary fibrous tumor of the pancreas using methylene blue显示文摘A 67-year-old female presented with unexplained abdominal pain. A contrast-enhanced computed tomography scan of the abdomen incidentally revealed a mass in the uncinate process of the pancreas. This mass was resected and based on histopathological findings, diagnosed as a solitary fibrous tumor (SFT) of the pancreas. A SFT is an extremely rare benign mesenchymal tumor that in 65% of cases affects the visceral pleura but can also affect extra-pleural sites. The intraoperative demarcation of pancreatic tumors, such as SFTs, can bechallenging. In this report, the first clear intraoperative identification of a SFT of the pancreas in a human was shown using near-infrared fluorescence and methylene blue.Joost R van der Vorst Alexander L Vahrmeijer Merlijn Hutteman Tjalling Bosse Vincent THBM Smit Cornelis JH van de Velde John V Frangioni Bert A Bonsing 2012World Journal of Gastrointestinal Surgery2012,4,7:7
5Management of Hyperglycemia in Type 2 Diabetes: A Patient-Centered Approach: Position Statement of the American Diabetes Association (ADA) and the European Association for the Study of Diabetes (EASD)显示文摘Inzucchi Silvio E Bergenstal Richard M Buse John B Diamant Michaela Ferrannini Ele Nauck Michael Peters Anne L Tsapas Apostolos Wender Richard Matthews David R 2012EN2012,,3:6
6全球药物滥用的疾病负担:来自2010年全球疾病负担研究显示文摘背景:直到目前还没有研究者系统地估计过全球及区域性的苯丙胺类、大麻、可卡因和阿片类药物依赖的患病率及其造成的疾病负担。我们旨在用伤残损失寿命年(YLDs)、过早死亡损失寿命年(YLLs)和伤残调整寿命年(DALYs)来估计药物依赖的患病率和其造成的疾病负担。方法:采用贝叶斯Meta回归的方法(Dis Mod-MR)对药物依赖的流行病学研究及2010年全球疾病、伤害及危险因素负担研究(GBD 2010)进行了系统综述,估计人群水平的药物依赖患病率。GBD 2010通过代表性社区调查和基于互联网的调查计算出新的失能权重。我们把估计的药物依赖患病率和新的失能权重结合起来估算药物依赖导致的YLDs、YLLs、DALYs和其作为相关疾病危险因素时导致的YLDs、YLLs和DALYs。结果:2010年,药物依赖直接造成了2千万的DALYs(95%UI(不确定区间)1.3-2.54千万),占全球全因DALYs的0.8%(0.6%-1.0%)。世界范围内,相比于其他药物,越来越多的人依赖于阿片类和苯丙胺类药物。阿片类药物依赖直接造成的疾病负担最大(DALYs为920万,95%UI为710-1140万)。在某些地区,药物依赖导致的DALYs所占比例比其他地区高出20倍,收入越高的国家药物依赖造成的负担所占比例也越高。注射吸毒所致HIV感染造成210万的DALYs(95%UI 110-360万),所致HCV感染导致50.2万的DALYs(95%UI 28.6-89.1万)。苯丙胺类药物依赖所致自杀造成85.4万的DALYs(95%UI 29.1-179.1万),阿片类药物依赖所致自杀造成67.1万的DALYs(95%UI 32.9-173.0万),可卡因依赖所致自杀造成32.4万的DALYs(95%UI 10.9-68.2万)。药物依赖导致的疾病负担最高的国家(>650 DALYs/10万人)包括美国,英国,俄罗斯和澳大利亚。结论:药物滥用是造成全球疾病负担的一个重要因素。为减少人群水平的疾病负担,我们需采取有效的措施(比如给予阿片类药物依赖者替代治疗及针具交换等)降低阿片类药物依赖和注射吸毒导致的疾病负担。王同瑜 Degenhardt L Whiteford HA Ferrari AJ Baxter AJ Charlson FJ Hall WD Freedman G Burstein R Johns Engell RE Flaxman A Murray CJ Vos T 2015中国药物依赖性杂志2015,24,6:3
7Th1 cytokines promote T-cell binding to antigen-presenting cells via enhanced hyaluronan production and accumulation at the immune synapse显示文摘Hyaluronan(HA)production by dendritic cells(DCs)is known to promote antigen presentation and to augment T-cell activation and proliferation.We hypothesized that pericellular HA can function as intercellular‘glue’directly mediating T cell–DC binding.Using primary human cells,we observed HA-dependent binding between T cells and DCs,which was abrogated upon pre-treatment of the DCs with 4-methylumbelliferone(4-MU),an agent which blocks HA synthesis.Furthermore,T cells regulate HA production by DCs via T cell-derived cytokines in a T helper(Th)subset-specific manner,as demonstrated by the observation that cell-culture supernatants from Th1 but not Th2 clones promote HA production.Similar effects were seen upon the addition of exogenous Th1 cytokines,IL-2,interferon c(IFN-c)and tumor necrosis factor a(TNF-a).The critical factors which determined the extent of DC–T cell binding in this system were the nature of the pre-treatment the DCs received and their capacity to synthesize HA,as T-cell clones which were pre-treated with monensin,added to block cytokine secretion,bound equivalently irrespective of their Th subset.These data support the existence of a feedforward loop wherein T-cell cytokines influence DC production of HA,which in turn affects the extent of DC–T cell binding.We also document the presence of focal deposits of HA at the immune synapse between T-cells and APC and on dendritic processes thought to be important in antigen presentation.These data point to a pivotal role for HA in DC–T cell interactions at the IS.Paul L Bollyky Stephen P Evanko Rebecca P Wu Susan Potter-Perigo S Alice Long Brian Kinsella Helena Reijonen Kelly Guebtner Brandon Teng Christina K Chan Kathy R Braun John A Gebe Gerald T Nepom Thomas N Wight 2010Cellular & Molecular Immunology2010,7,3:3
8Where is the global in global mental health?A call for inclusive multicultural collaboration显示文摘To the editor:Common mental health disorders,like depression and anxiety,account for 45%of the global disease burden on youths aged 15-29.1 This challenge is particularly significant in low and middle-income countries(LMICs)where risk factors such as poverty,limited treatment options and stigma restrict access to care and exacerbate the burden and magnify the impact of mental disorders.23 Given these barriers,there is an urgent need for research dedicated to expanding mental healthcare for young people in LMICs.Tom L Osborn Akash R Wasil John R Weisz Arthur Kleinman David M Ndetei 2020General Psychiatry2020,33,6:2
9Effect of Ginkgo biloba (EGb 761) and aspirin on platelet aggregation and platelet function analysis among older adults at risk of cardiovascular disease: a randomized clinical trial显示文摘Christopher D Gardner James L Zehnder Alison J Rigby Joel R Nicholus John W Farquhar 2007Blood Coagulation & Fibrinolysis2007,,8:2
10Reduced striatal volumes in Parkinson’s disease:a magnetic resonance imaging study显示文摘Background:The presence and extent of structural changes in the brain as a consequence of Parkinson’s disease(PD)is still poorly understood.Methods:High-resolution 3-tesla T1-weighted structural magnetic resonance images in sixty-five PD and 27 age-matched healthy control participants were examined.Putamen,caudate,and intracranial volumes were manually traced in the axial plane of 3D reconstructed images.Striatal nuclei volumes were normalized to intracranial volume for statistical comparison.Disease status was assessed using the Unified Parkinson’s Disease Rating Scale and Hoehn and Yahr scale.Cognitive status was assessed using global status tests and detailed neuropsychological testing.Results:Both caudate and putamen volumes were smaller in PD brains compared to controls after adjusting for age and gender.Caudate volumes were reduced by 11%(p=0.001)and putamen volumes by 8.1%(p=0.025).PD striatal volumes were not found to be significantly correlated with cognitive or motor decline.Conclusion:Small,but significant reductions in the volume of both the caudate and putamen occur in PD brains.These reductions are independent of the effects of age and gender,however the relation of these reductions to the functional loss of dopamine,which is characteristic of PD,remains unclear.Toni L Pitcher Tracy R Melzer Michael R MacAskill Charlotte F Graham Leslie Livingston Ross J Keenan Richard Watts John C Dalrymple-Alford Tim J Anderson 2012Translational Neurodegeneration2012,1,1:2
11Validation of a FEA tire model for vehicle dynamic analysis and full vehicle real time proving ground simulations显示文摘 Jeong W K John O H SAE Paper0,18,:1
12Assessment of erosion haz- ard with the USLE and GIS A ease study of the Upper Ewaso Nglro North basin of Kenya显示文摘Bancy M Mati Royston P C Morgan Francis N Gichuki John N Quinton Tim R Brewer Hans P l iniger 2000lnternation Journal of Applied Earth Ob- servation and Geoinformation2000,2,2:1
13Hydrogen peroxide mediates defence responses induced by chitosans of different molecular weights in rice显示文摘Lin W L Hu X Y Zhang W Q John R W Cai W M 2005Journal of Plant Physiology2005,162,8:1
14Changes in stoichiometric Si, N and P ratios of Mississippi River water diverted through coastal wetlands to the Gulf of Mexico 显示文摘Robert R L John W D Dubravko J 2004Estuarine Coastal and Shelf Science2004,60,1:1
15A structural investigation of titanium dioxide photocatalysts显示文摘BICKLEY R I CARRENO T G JOHN S L 1991J Solid State Chem1991,92,1:1
16Uncertainty quantification using evidence theory in multidisciplinary design optimization 显示文摘Harish A John E R Evan L P 2004Reliability Engineering and System Safety2004,85,13:1
17Developmental changes in enzymes of flavouoid biosynthesis in the skins of red and green apple cultivators 显示文摘Carolyn E L Jane E L John R L 1996Sei Food Agric1996,71,:1
18Separation of βρand L1 in Tokamaks of Non-Circular Cross-Section 显示文摘Lao L L John H St Stambauch R D 1985Nucl Fusion1985,25,10:1
19Immunocontraception is induced in BALB/c mice inoculated with murine cytomegalovirus expressing mouse zona pellucida3显示文摘Lloyd Megan L Shellam Geoffrey R Papadimitriou John M 2003Biol Reprod2003,68,6:1
20Estimating aquifer properties by nonlinear least-squares analysis of pump test response显示文摘R A Johns L Senprini P V Roberts 1992Ground water1992,30,1:1
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