维普中文期刊产品整合服务
415篇 您的检索式:作者名="Jonathan G"
    题名 作者 年代 出处 被引量
1Portal vein thrombosis, mortality and hepatic decompensation in patients with cirrhosis: A meta-analysis显示文摘AIM: To determine the clinical impact of portal vein thrombosis in terms of both mortality and hepatic decompensations(variceal hemorrhage, ascites, portosystemic encephalopathy) in adult patients with cirrhosis.METHODS: We identified original articles reported through February 2015 in MEDLINE, Scopus, Science Citation Index, AMED, the Cochrane Library, and relevant examples available in the grey literature. Two independent reviewers screened all citations for inclusion criteria and extracted summary data. Random effects odds ratios were calculated to obtain aggregate estimates of effect size across included studies, with 95%CI.RESULTS: A total of 226 citations were identified and reviewed, and 3 studies with 2436 participants were included in the meta-analysis of summary effect. Patients with portal vein thrombosis had an increased risk of mortality(OR = 1.62, 95%CI: 1.11-2.36, P = 0.01). Portal vein thrombosis was associated with an increased risk of ascites(OR = 2.52, 95%CI: 1.63-3.89, P < 0.001). There was insufficient data available to determine the pooled effect on other markers of decompensation including gastroesophageal variceal bleeding or hepatic encephalopathy. CONCLUSION: Portal vein thrombosis appears to increase mortality and ascites, however, the relatively small number of included studies limits more generalizable conclusions. More trials with a direct comparison group are needed.Jonathan G Stine Puja M Shah Scott L Cornella Sean R Rudnick Marwan S Ghabril George J Stukenborg Patrick G Northup 2015World Journal of Hepatology2015,7,27:42
2Calcium signaling and T-type calcium channels in cancer cell cycling显示文摘Regulation of intracellular calcium is an important signaling mechanism for cell proliferation in both normal and cancerous cells. In normal epithelial cells, free calcium concentration is essential for cells to enter and accomplish the S phase and the M phase of the cell cycle. In contrast, cancerous cells can pass these phases of the cell cycle with much lower cytoplasmic free calcium concentrations, indicating an alternative mechanism has developed for fulfilling the intracellular calcium requirement for an increased rate of DNA synthesis and mitosis of fast replicating cancerous cells. The detailed mechanism underlying the altered calcium loading pathway remains unclear; however, there is a growing body of evidence that suggests the T-type Ca2+ channel is abnormally expressed in cancerous cells and that blockade of these channels may reduce cell proliferation in addition to inducing apoptosis. Recent studies also show that the expression of T-type Ca2+ channels in breast cancer cells is proliferation state dependent, i.e. the channels are expressed at higher levels during the fast-replication period, and once the cells are in a non-proliferation state, expression of this channel isminimal. Therefore, selectively blocking calcium entry into cancerous cells may be a valuable approach for preventing tumor growth. Since T-type Ca2+ channels are not expressed in epithelial cells, selective T-type Ca2+ channel blockers may be useful in the treatment of certain types of cancers.James T Taylor Xiang-Bin Zeng Jonathan E Pottle Kevin Lee Alun R Wang Stephenie G Yi lennifer A S Scruggs Suresh S Sikka Ming Li 2008World Journal of Gastroenterology2008,14,32:12
3Augmenting peripheral nerve regeneration using stem cells: A review of current opinion显示文摘Outcomes following peripheral nerve injury remain frustratingly poor. The reasons for this are multifactorial, although maintaining a growth permissive environment in the distal nerve stump following repair is arguably the most important. The optimal environment for axonal regeneration relies on the synthesis and release of many biochemical mediators that are temporally and spatially regulated with a high level of incompletely understood complexity. The Schwann cell(SC) has emerged as a key player in this process. Prolonged periods of distal nerve stump denervation, characteristic of large gaps and proximal injuries, have been associated with a reduction in SC number and ability to support regenerating axons. Cell based therapy offers a potential therapy for the improvement of outcomes following peripheral nerve reconstruction. Stem cells have the potential to increase the number of SCs and prolong their ability to support regeneration. They may also have the ability to rescue and replenish populations of chromatolytic and apoptotic neurons following axotomy. Finally, they can be used in non-physiologic ways to preserve injured tissues such as denervated muscle while neuronal ingrowth has not yet occurred. Aside from stem cell type, careful consideration must be given to differentiation status, how stem cells are supported following transplantation and how they will be delivered to the site of injury. It is the aim of this article to review current opinions on the strategies of stem cell based therapy for the augmentation of peripheral nerve regeneration.Neil G Fairbairn Amanda M Meppelink Joanna Ng-Glazier Mark A Randolph Jonathan M Winograd 2015World Journal of Stem Cells2015,7,1:12
4Hospitalized ulcerative colitis patients have an elevated risk of thromboembolic events显示文摘AIM: To compare thromboembolism rates between hospitalized patients with a diagnosis of ulcerative colitis and other hospitalized patients at high risk for thromboembolism. To compare thromboembolism rates between patients with ulcerative colitis undergoing a colorectal operation and other patients undergoing colorectal operations. METHODS: Data from the National Hospital Discharge Survey was used to compare thromboembolism rates between (1) hospitalized patients with a discharge diagnosis of ulcerative colitis and those with diverticulitis or acute respiratory failure, and (2) hospitalized patients with a discharge diagnosis of ulcerative colitis who underwent colectomy and those with diverticulitis or colorectal cancer who underwent colorectal operations. RESULTS: Patients diagnosed with ulcerative colitis had similar or higher rates of combined venous thromboembolism (2.03%) than their counterparts with diverticulitis (0.76%) or respiratory failure (1.99%), despite the overall greater prevalence of thromboembolic risk factors in the latter groups. Discharged patients with colitis that were treated surgically did not have signifi cantly different rates of venous or arterial thromboembolism than those with surgery for diverticulitis or colorectal cancer.CONCLUSION: Patients with ulcerative colitis who do not undergo an operation during their hospitalization have similar or higher rates of thromboembolism than other medical patients who are considered to be high risk for thromboembolism.Jennifer Y Wang Jonathan P Terdiman Eric Vittinghoff Tracy Minichiello Madhulika G Varma 2009World Journal of Gastroenterology2009,15,8:8
5Cardiotrophin 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
6Sessile serrated adenomas:Demographic,endoscopic and pathological characteristics显示文摘AIM:To study the demographic and endoscopic characteristics of patients with sessile serrated adenoma(SSA) in a single center.METHODS:Patients with SSA were identified by review of the pathology database of Mayo Clinic Arizona from 2005 to 2007.A retrospective chart review was performed to extract data on demographics,polyp characteristics,presence of synchronous adenomatous polyps or cancer,polypectomy methods,and related complications.RESULTS:One hundred and seventy-one(2.9%) of all patients undergoing colonoscopy had a total of 226 SSAs.The mean(SE) size of the SSAs was 8.1(0.4) mm;42% of SSAs were ≤ 5 mm,and 69% were ≤ 9 mm.Fifty-one per cent of SSAs were located in the cecum or ascending colon.Approximately half of the patients had synchronous polyps of other histological types,including hyperplastic and adenomatous polyps.Synchronous adenocarcinoma was present in seven(4%) cases.Ninety-seven percent of polyps were removed by colonoscopy.CONCLUSION:Among patients with colon polyps,2.9% were found to have SSAs.Most of the SSAs were located in the right side and were safely managed by colonoscopy.Suryakanth R Gurudu Russell I Heigh Giovanni De Petris Evelyn G Heigh Jonathan A Leighton Shabana F Pasha Isaac B Malagon Ananya Das 2010World Journal of Gastroenterology2010,16,27:7
7Lymph node imaging in initial staging of prostate cancer:An overview and update显示文摘Accurate nodal staging at the time of diagnosis of prostate cancer is crucial in determining a treatment plan for the patient.Pelvic lymph node dissection is the most reliable method,but is less than perfect and has increased morbidity.Cross sectional imaging with computed tomography(CT) and magnetic resonance imaging(MRI) are non-invasive tools that rely on morphologic characteristics such as shape and size of the lymph nodes.However,lymph nodes harboring metastatic disease may be normal sized and non-metastatic lymph nodes may be enlarged due to reactive hyperplasia.The optimal strategy for preoperative staging remains a topic of ongoing research.Advanced imaging techniques to assess lymph nodes in the setting of prostate cancer utilizing novel MRI contrast agents as well as positron emission tomography(PET) tracers have been developed and continue to be studied.Magnetic resonance lymphography utilizing ultra-small super paramagnetic iron oxide has shown promising results in detection of metastatic lymph nodes.Combining MRL with diffusion-weighted imaging may also improve accuracy.Considerable efforts are being made to develop effective PET radiotracers that are performed using hybrid-imaging systems that combine PET with CT or MRI.PET tracers that will be reviewed in this article include [^(18)F]fluoro-D-glucose,sodium [^(18)F]fluoride,[^(18)F]choline,[^(11)C]choline,prostate specific membrane antigen binding ligands,[^(11)C]acetate,[^(18)F]fluciclovine,gastrin releasing peptide receptor ligands,and androgen binding receptors.This article will review these advanced imaging modalities and ability to detect prostate cancer metastasis to lymph nodes.While more research isneeded,these novel techniques to image lymph nodes in the setting of prostate cancer show a promising future in improving initial lymph node staging.Jessica G Zarzour Sam Galgano Jonathan McConathy John V Thomas Soroush Rais-Bahrami 2017World Journal of Radiology2017,9,10:5
8Nat Genet:单基因突变导致过敏性皮炎的发生显示文摘最近,研究者们鉴定出了一类导致神经性皮炎发生的关键基因突变:CARDll。来自美国NIH过敏与传染病研究所的研究者们通过对四个没有血缘关系的患病家庭进行分析,发现了这一导致疾病产生的基因、Chi A Ma, Yuan Zhang, Michael A Weinreich, Jonathan J Lyons, Celeste G Nelson, Thomas DiMaggio, Kelly D Stone, Joshua D Milner Jeffrey R Stinson, Elisa Ruffo, Batsukh Dorjbal, Swadhinya Arjunaraja, Kelsey Voss, Andrew L Snow Jordan K Abbott, Pia J Hauk, Paul R Reynolds, Erwin W Gelfand Elisa Ruffo Salomé Glauzy, Natsuko Yamakawa, Eric Meffre Jennifer Stoddard, Julie Niemela, Sergio D Rosenzweig Yu Zhang, Helen F Matthews Joshua J McElwee Nina Jones Alejandro Palma, Matías Oleastro, Emma Prieto, Andrea R Bernasconi, Geronimo Dubra, Silvia Danielian, Jonathan Zaiat, Marcelo A Marti Brian Kim Megan A Cooper Neil Romberg 2017现代生物医学进展2017,17,27:3
9Re-challenge chemotherapy with gemcitabine plus carboplatin in patients with non-small cell lung cancer显示文摘Despite recent improvements to current therapies and the emergence of novel agents to manage advanced non-small cell lung cancer(NSCLC),the patients′overall survival remains poor.Re-challenging with first-line chemotherapy upon relapse is common in the management of small cell lung cancer but is not well reported for advanced NSCLC.NSCLC relapse has been attributed to acquired drug resistance,but the repopulation of sensitive clones may also play a role,in which case re-challenge may be appropriate.Here,we report the results of re-challenge with gemcitabine plus carboplatin in 22 patients from a single institution who had previously received gemcitabine plus platinum in the first-line setting and had either partial response or a progression-free interval of longer than 6 months.In this retrospective study,the charts of patients who underwent second-line chemotherapy for NSCLC in our cancer center between January 2005 and April 2010 were reviewed.All the patients who received a combination of gemcitabine and carboplatin for re-challenge were included in the study.These patients were offered second-line treatment on confirmation of clear radiological disease progression.The overall response rate was 15%and disease control rate was 75%.The median survival time was 10.4 months,with 46%of patients alive at 1 year.These results suggest that re-challenge chemotherapy should be considered in selected patients with radiological partial response or a progression-free survival of longer than 6 months to the initial therapy.Khurum Khan Gerard G Hanna Lynn Campbell Paula Scullin Adnan Hussain Ruth L Eakin Jonathan McAleese 2013Chinese Journal of Cancer2013,32,10:3
10Adjuvant imatinib mesylate after resection of localised, primary gastrointestinal stromal tumour: a randomised, double-blind, placebo-controlled trial显示文摘Ronald P DeMatteo Karla V Ballman Cristina R Antonescu Robert G Maki Peter WT Pisters George D Demetri Martin E Blackstein Charles D Blanke Margaret von Mehren Murray F Brennan Shreyaskumar Patel Martin D McCarter Jonathan A Polikoff Benjamin R Tan Kouros 2009The Lancet2009,,9669:2
11Advanced non-alcoholic steatohepatitis cirrhosis: A high-risk population for pre-liver transplant portal vein thrombosis显示文摘AIM To examine if liver transplant recipients with high-risk non-alcoholic steatohepatitis(NASH) are at increased risk for pre-transplant portal venous thrombosis.METHODS Data on all liver transplants in the United States from February 2002 through September 2014 were analyzed. Recipients were sorted into three distinct groups: High-risk(age > 60, body mass index > 30 kg/m2, hypertension and diabetes), low-risk and non-NASH cirrhosis. Multivariable logistic regression models were constructed.RESULTS Thirty-five thousand and seventy-two candidates underwent liver transplantation and of those organ recipients, 465 were transplanted for high-risk and 2775 for lowrisk NASH. Two thousand six hundred and twentysix(7.5%) recipients had pre-transplant portal vein thrombosis; 66(14.2%) of the high-risk NASH group had portal vein thrombosis vs 328(11.8%) of the lowrisk NASH group. In general, all NASH recipients were less likely to be male or African American and more likely to be obese. In adjusted multivariable regression analyses, high-risk recipients had the greatest risk ofpre-transplant portal vein thrombosis with OR = 2.11(95%CI: 1.60-2.76, P < 0.001) when referenced to the non-NASH group.CONCLUSION Liver transplant candidates with high-risk NASH are at the greatest risk for portal vein thrombosis development prior to transplantation. These candidates may benefit from interventions to decrease their likelihood of clot formation and resultant downstream hepatic decompensating events. Prospective study is needed.Jonathan G Stine Curtis K Argo Shawn J Pelletier Daniel G Maluf Stephen H Caldwell Patrick G Northup 2017World Journal of Hepatology2017,9,3:2
12Cancer: a new role for non-canonical Hippo signaling显示文摘Jonathan Cooper Filippo G Giancotti 2017Cell Research2017,27,4:2
13Intelligent Control for Improvements in PEM Fuel Cell Flow Performance显示文摘燃料房间和车辆应用的表演他们被嵌进取决于正确温度,湿度,反应物压力,纯净和流动率的精细的平衡。这篇论文成功地在一个单个单元膜电极集会(MEA ) 上与实现调查与流控制有关的问题。这篇论文为用递归的最小二乘方标识执行系统鉴定说明燃料房间的非线性的参数论述一条系统的途径。然后,它介绍一个模糊控制器,一个简化规则库与计算从 stoichiometry 价值要求的流动的存在流动控制器对实时结果验证了。Jonathan G Williams David Rees 2008International Journal of Automation and computing2008,5,2:2
14Enzymatic hydrolysis of lime-pretreated corn stover and investigation of the HCH-1 model: inhibition pattern, degree of inhibition,validity of simplified HCH-1 model 显示文摘Jonathan P Zhu L Cesar B G 2007Bioresource Technology2007,98,16:1
15A critical evaluation of location based services and their potential显示文摘JONATHAN R GEORG G HASSAN K 2007Journal of Location Based Services2007,1,1:1
16Plant pathogens and integrated defenee responses to infection显示文摘Jonathan D G Jones Jeflbry L Dangl 2001Nature2001,411,:1
17Integrated optical dull Mach-Zehnder interferometer sensor显示文摘Hua P Jonathan L B Quigley G Q 2002Sensors and Actuators B2002,87,2:1
18Preparation of vanadium phosphate catalysts from VOPO4·2 H2O:effect of VOPO4·2 H2O preparation on catalyst performance显示文摘LOUISA G JONATHAN K RICHARD P K 2004Journal of Molecular Catalysis A:Chemical2004,220,1:1
19Optimizing aircraft routing in response to groundings and delays显示文摘Jonathan Bard Yu G 2001IIE Transaction2001,33,:1
20Physical Activity Constrains among Latinos 显示文摘Michelle G H Myron F F Jonathan M C 2013Journal of Leisure Re- search2013,45,1:1
返回顶部 每页显示:
共21页 首页 上一页 第1页 下一页 末页 /21 跳转

网站首页 | 关于我们 | 联系我们 | 产品服务 | 客服中心 | 广告服务 | 版权声明 | 网站联盟 | 友情链接 | 售卡网点

版权所有© 渝B2-20050021-1 渝公网安备 50019002500403号 违法和不良信息举报中心

互联网出版许可证 新出网证(渝)字10号 全国400电话 - 免长途话费