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349篇 您的检索式:作者名="Georg C P"
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1miR-200 family expression is downregulated upon neoplastic progression of Barrett's esophagus显示文摘AIM: To investigate miR-200 family expression in Barrett's epithelium, gastric and duodenal epithelia, and esophageal adenocarcinoma. METHODS: Real-time reverse transcriptase-polymerase chain reaction was used to measure miR-200, ZEB1 and ZEB2 expression. Ingenuity Pathway Analysis of miR-200 targets was used to predict biological outcomes. RESULTS: Barrett's epithelium expressed lower levels of miR-141 and miR-200c than did gastric and duodenal epithelia (P < 0.001). In silico analysis indicated roles for the miR-200 family in molecular pathways that distinguish Barrett's epithelium from gastric and duodenalepithelia, and which control apoptosis and proliferation. All miR-200 members were downregulated in adenocarcinoma (P < 0.02), and miR-200c expression was also downregulated in non-invasive epithelium adjacent to adenocarcinoma (P < 0.02). The expression of all miR-200 members was lower in Barrett's epithelium derived high-grade dysplastic cell lines than in a cell line derived from benign Barrett's epithelium. We observed signif icant inverse correlations between miR-200 family expression and ZEB1 and ZEB2 expression in Barrett's epithelium and esophageal adenocarcinoma (P < 0.05). CONCLUSION: miR-200 expression might contribute to the anti-apoptotic and proliferative phenotype of Barrett's epithelium and regulate key neoplastic processes in this epithelium.Cameron M Smith David I Watson Mary P Leong George C Mayne Michael Z Michael Bas PL Wijnhoven Damian J Hussey 2011World Journal of Gastroenterology2011,17,8:13
2It is safe to use transdermal glyceryl trinitrate to lower blood pressure in patients with acute ischaemic stroke with carotid stenosis显示文摘Background There is concern that blood pressure(BP)lowering in acute stroke may compromise cerebral perfusion and worsen outcome in the presence of carotid stenosis.We assessed the effect of glyceryl trinitrate(GTN)in patients with carotid stenosis using data from the Efficacy of Nitric Oxide in Stroke(ENOS)Trial.Methods ENOS randomised 4011 patients with acute stroke and raised systolic BP(140-220 mm Hg)to transdermal GTN or no GTN within 48 hours of onset.Those on prestroke antihypertensives were also randomised to stop or continue their medication for 7 days.The primary outcome was the modified Rankin Scale(mRS)at day 90.Ipsilateral carotid stenosis was split:<30%;30-<50%;50-<70%;≥70%.Data are ORs with 95%CIs adjusted for baseline prognostic factors.results 2023(60.5%)ischaemic stroke participants had carotid imaging.As compared with<30%,≥70%ipsilateral stenosis was associated with an unfavourable shift in mRS(worse outcome)at 90 days(OR 1.88,95%CI 1.44 to 2.44,p<0.001).Those with≥70%stenosis who received GTN versus no GTN had a favourable shift in mRS(OR 0.56,95%CI 0.34 to 0.93,p=0.024).In those with 50-<70%stenosis,continuing versus stopping prestroke antihypertensives was associated with worse disability,mood,quality of life and cognition at 90 days.Clinical outcomes did not differ across bilateral stenosis groups.Conclusions Following ischaemic stroke,severe ipsilateral carotid stenosis is associated with worse functional outcome at 90 days.GTN appears safe in ipsilateral or bilateral carotid stenosis,and might improve outcome in severe ipsilateral carotid stenosis.Jason P Appleton Lisa J Woodhouse Andrew Belcher Daniel Bereczki Eivind Berge Valeria Caso Hui Meng Chang Hanne K Christensen Ronan Collins John Gommans Ann C Laska George Ntaios Serefnur Ozturk Gillian M Sare Szabolcs Szatmari Yongjun Wang Joanna M Wardlaw Nikola Sprigg Philip M Bath for the ENOS investigators 2019Stroke & Vascular Neurology2019,4,1:6
3Acute upper gastrointestinal bleeding in patients on long-term oral anticoagulation therapy: Endoscopic findings, clinical management and outcome显示文摘AIM: Acute gastrointestinal bleeding is a severe complication in patients receiving long-term oral anticoagulant therapy.The purpose of this study was to describe the causes and clinical outcome of these patients.METHODS: From January 1999 to October 2003, 111patients with acute upper gastrointestinal bleeding (AUGIB)were hospitalized while on oral anticoagulants. The causes and clinical outcome of these patients were compared with those of 604 patients hospitalized during 2000-2001with AUGIB who were not taking warfarin.RESULTS: The most common cause of bleeding was peptic ulcer in 51 patients (45%) receiving anticoagulants compared to 359/604 (59.4%) patients not receiving warfarin (P<0.05). No identifiable source of bleeding could be found in 33 patients (29.7%) compared to 31/604(5.1%) patients not receiving anticoagulants (P= 0.0001).The majority of patients with concurrent use of non-steroidal anti-inflammatory drugs (NSATDs) (26/35, 74.3%) had a peptic ulcer as a cause of bleeding while 32/76 (40.8%)patients not taking a great dose of NSATDs had a negative upper and lower gastrointestinal endoscopy. Endoscopic hemostasis was applied and no complication was reported.Six patients (5.4%) were operated due to continuing or recurrent hemorrhage, compared to 23/604 (3.8%) patients not receiving anticoagulants. Four patients died, the overall mortality was 3.6% in patients with AUGIB due to anticoagulants, which was not different from that in patients not receiving anticoagulant therapy.CONCLUSION: Patients with AUGIB while on long-term anticoagulant therapy had a clinical outcome, which is not different from that of patients not taking anticoagulants.Early endoscopy is important for the management of these patients and endoscopic hemostasis can be safely applied.Konstantinos C Thomopoulos Konstantinos P Mimidis George J Theocharis Anthie G Gatopoulou Georgios N Kartalis Vassiliki N Nikolopoulou 2005World Journal of Gastroenterology2005,11,9:5
4Are acute exacerbations of chronic inflammatory appendicitis triggered by coprostasis and/or coproliths?显示文摘AIM: To examine the role of coprostasis and coproliths in recurrent appendicitis. METHODS: We evaluated four hundred and twenty seven consecutive pathology reports of all appende- ctomy specimens from January 2003 to December 2004. Findings were categorised as showing acute appen- dicitis, acute recurrent appendicitis, subacute recurrent appendicitis, chronic appendicitis, or appendices without inflammation. All patients had presented with acute right lower quadrant pain. In 94 instances, there was a history of recurrent similar episodes in the past. RESULTS: Of the 427 histology reports, 294 were inter- preted as showing acute appendicitis, 56 acute recurrent appendicitis, 34 subacute recurrent appen-dicitis, 28 chronic appendicitis, and 15 non-inflamed appendices. Coprostasis was observed in 58 patients (13.58%) and the presence of coprolith in 6 (1.4%). Coprostasis, and age, were among the predictors in the final model. CONCLUSION: Coprostasis but not coproliths seems to be a contributing factor to acute exacerbations of chronic inflammatory appendicitis.George Sgourakis Georgios C Sotiropoulos Ernesto P Molmenti Charis Eibl Stylianous Bonticous Jurgen Moege Christoph Berchtold 2008World Journal of Gastroenterology2008,14,20:5
5Tumor necrosis factor-α-induced protein 1 and immunity to hepatitis B virus显示文摘AIM: To compare the gene expression profile in a pair of HBV-infected twins.METHODS: The gene expression profile was compared in a pair of HBV-infected twins.RESULTS: The twins displayed different disease outcomes. One acquired natural immunity against HBV,whereas the other became a chronic HBV carrier. Eightyeight and forty-six genes were found to be up- or downregulated in their PBMCs, respectively. Tumor necrosis factor-alpha-induced protein 1 (TNF-αIP1) that expressed at a higher level in the HBV-immune twins was identified and four pairs of siblings with HBV immunity by RTPCR. However, upon HBV core antigen stimulation,TNF-αIP1 was downregulated in PBMCs from subjects with immunity, whereas it was slightly upregulated in HBV carriers. Bioinformatics analysis revealed a K+channel tetramerization domain in TNF-αIP1 that shares a significant homology with some human, mouse, and C elegan proteins.CONCLUSION: TNF-αIP1 may play a role in the innate immunity against HBV.Marie C Lin Nikki P Lee Ning Zheng Pai-Hao Yang Oscar G Wong Hsiang-Fu Kung Chee-Kin Hui John M Luk George Ka-Kit Lau 2005World Journal of Gastroenterology2005,11,48:3
6Spectral analysis of drought index(Palmar) for India显示文摘Rao K N George C J Moray P E 1973Indian J Met Geophys1973,24,2:2
7Ordered Intermetallics显示文摘E P George M Yamaguchi K S Kumar C T Liu 1994Annual Review of Materials Science1994,,:2
8High temperature properties of SiC and diamond CVD-monofilaments 显示文摘GEORGES C ROGER N CALVIN P 2004Journal of the European Ceramic Society2004,25,:1
9Surveillance for the detection of early lung cancer in patients with bronchial dysplasia 显示文摘Jeremy George P Banerjee A K Read C A 2007Thorax2007,62,1:1
10Geochemical comparison of oil bearing fluid inclusions trapped in quartz grains and live oil from the Toro Sandstone, Papua New Guinea显示文摘George S C Krieger F W Eadington P J 1997Organic Geochemistry1997,26,:1
11A new steel slag for cement manufacture: Mineralogy and hydraulicity显示文摘Conjeaud M George C M Sorrentino F P 1981Cement and Concrete Research1981,11,:1
12An integrated anal ytical approach for determining the origin of solid bitumens in the McArthur Basin,Northern Australia显示文摘George S C Llorca S M Hamilton P J 1994Org Geochem1994,21,:1
13Brittle fracture and grain bounda- ry chemistry of microalloyed NiAl显示文摘George E P Liu C T 1990J Mater Res1990,5,:1
14Alow resistance boron-doped carbon nanotube-polystyrene composite显示文摘Paul C P Watts Wen Kuang Hsu George Z Chen 2001J Mater Chem2001,11,:1
15A new evaluation of our life-support system显示文摘TOUSSAINT A GHIGO J GEORGE P C 2003EMBO Journal2003,4,9:1
16Genetic map- ping of KatG,a locus that affects synthesis of the bifunc tional catalase peroxidase hydroperoxidase I in Esche richia coli 显示文摘Loewen P C Triggs B L George C S 1985Journal of Bacteriology1985,162,2:1
17Power of the Mann-Kendall and Spearman's rho tests {or detecting monotonic trends in hydrological series 显示文摘Sheng Y Paul P George C 2002Journal of Hydrology2002,259,:1
18Effects of substrate stiffness on cell morphology, cytoskeletal structure and adhesion 显示文摘Yeung T Georges P C Flanagan L Av 2005Cell Motol Cytoskel2005,60,1:1
19Surgically treated acetabular fractuees a single posterior approach with a follow-up of 2-10 years显示文摘George P'Pen'osA Byron C 0,,02:1
20Environmental Embrittlement in FeAl Aluminides显示文摘Liu C T Fu C L George E P Painter G S 1991ISIJ International1991,31,10:1
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