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123篇 您的检索式:作者名="David I C"
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1Clinical outcomes of isolated renal failure compared to other forms of organ failure in patients with severe acute pancreatitis显示文摘AIM To assess differences in clinical outcomes of isolated renal failure(RF) compared to other forms of organ failure(OF) in patients with severe acute pancreatitis(SAP).METHODS Using a prospectively maintained database of patients with acute pancreatitis admitted to a tertiary medical center between 2003 and 2016, those with evidence of persistent OF were classified to renal, respiratory, cardiovascular, or multi-organ(2 or more organs). Data regarding demographics, comorbidities, etiology of acute pancreatitis, and clinical outcomes were prospectively recorded. Differences in clinical outcomes after development of isolated RF in comparison to other forms of OF were determined using independent t and Mann-Whitney U tests for continues variables, and χ~2 test for discrete variables.RESULTS Among 500 patients with acute pancreatitis, 111 patients developed persistent OF: mean age was 54 years, and 75(67.6%) were male. Forty-three patients had isolated OF: 17(15.3%) renal, 25(21.6%) respiratory, and 1(0.9%) patient with cardiovascular failure. No differences in demographics, etiology of acute pancreatitis, systemic inflammatory response syndrome scores, or development of pancreatic necrosis were seen between patients with isolated RF vs isolated respiratory failure. Patients with isolated RF were less likely to require nutritional support(76.5% vs 96%, P = 0.001), ICU admission(58.8% vs 100%, P = 0.001), and had shorter mean ICU stay(2.4 d vs 15.7 d, P < 0.001), compared to isolated respiratory failure. None of the patients with isolated RF or isolated respiratory failure died.CONCLUSION Among patients with SAP per the Revised Atlanta Classification, approximately 15% develop isolated RF. This subgroup seems to have a less protracted clinical course compared to other forms of OF. Isolated RF might be weighed less than isolated respiratory failure in risk predictive modeling of acute pancreatitis.Amir Gougol Mohannad Dugum Anwar Dudekula Phil Greer Adam Slivka David C Whitcomb Dhiraj Yadav Georgios I Papachristou 2017World Journal of Gastroenterology2017,23,29:20
2miR-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
3Dietary and metabolomic determinants of relapse in ulcerative colitis patients: A pilot prospective cohort study显示文摘AIM To identify demographic, clinical, metabolomic, and lifestyle related predictors of relapse in adult ulcerative colitis(UC) patients.METHODS In this prospective pilot study, UC patients in clinical remission were recruited and followed-up at 12 mo to assess a clinical relapse, or not. At baseline information on demographic and clinical parameters was collected. Serum and urine samples were collected for analysis of metabolomic assays using a combined direct infusion/liquid chromatography tandem mass spectrometry and nuclear magnetic resolution spectroscopy. Stool samples were also collected to measure fecal calprotectin(FCP). Dietary assessment was performed using a validated self-administered food frequency questionnaire. RESULTS Twenty patients were included(mean age: 42.7 ± 14.8 years, females: 55%). Seven patients(35%) experienced a clinical relapse during the follow-up period. While 6 patients(66.7%) with normal body weight developed a clinical relapse, 1 UC patient(9.1%) who was overweight/obese relapsed during the follow-up(P = 0.02). At baseline, poultry intake was significantly higher in patients who were still in remission during follow-up(0.9 oz vs 0.2 oz, P = 0.002). Five patients(71.4%) with FCP > 150 μg/g and 2 patients(15.4%) with normal FCP(≤ 150 μg/g) at baseline relapsed during the follow-up(P = 0.02). Interestingly, baseline urinary and serum metabolomic profiling of UC patients with or without clinical relapse within 12 mo showed a significant difference. The most important metabolites that were responsible for this discrimination were trans-aconitate, cystine and acetamide in urine, and 3-hydroxybutyrate, acetoacetate and acetone in serum. CONCLUSION A combination of baseline dietary intake, fecal calprotectin, and metabolomic factors are associated with risk of UC clinical relapse within 12 mo.Ammar Hassanzadeh Keshtel iFloris F van den Brand Karen L Madsen Rupasri Mandal Rosica ValchevaKaren I Kroeker Beomsoo Han Rhonda C Bell Janis Cole Thomas Hoevers David S Wishart Richard N Fedorak Levinus A Dieleman 2017World Journal of Gastroenterology2017,23,21:9
4MicroRNA profile in neosquamous esophageal mucosa following ablation of Barrett's esophagus显示文摘AIM To investigate the micro RNA expression profile in esophageal neosquamous epithelium from patients who had undergone ablation of Barrett's esophagus.METHODS High throughput screening using Taq Man~ Array Human Micro RNA quantitative PCR was used to determine expression levels of 754 micro RNAs in distal esophageal mucosa(1 cm above the gastro-esophageal junction) from 16 patients who had undergone ablation of non-dysplastic Barrett's esophagus using argon plasma coagulation vs pretreatment mucosa, posttreatment proximal normal non-treated esophageal mucosa, and esophageal mucosal biopsies from 10 controls without Barrett's esophagus. Biopsies of squamous mucosa were also taken from 5 cm above the pre-ablation squamo-columnar junction. Predicted m RNA target pathway analysis was used to investigate the functional involvement of differentially expressed micro RNAs.RESULTS Forty-four micro RNAs were differentially expressed between control squamous mucosa vs post-ablation neosquamous mucosa. Nineteen micro RNAs were differentially expressed between post-ablation neosquamous and post-ablation squamous mucosa obtained from the more proximal non-treated esophageal segment. Twelve microRNAs were differentially expressed in both neosquamous vs matched proximal squamous mucosa and neosquamous vs squamous mucosa from healthy patients. Nine micro RNAs(mi R-424-5p, mi R-127-3p, mi R-98-5p, mi R-187-3p, mi R-495-3p, mi R-34c-5p, mi R-223-5p, mi R-539-5p, mi R-376a-3p, mi R-409-3p) were expressed at higher levels in post-ablation neosquamous mucosa than in matched proximal squamous and healthy squamous mucosa. These micro RNAs were also more highly expressed in Barrett's esophagus mucosa than matched proximal squamous and squamous mucosa from controls. Target prediction and pathway analysis suggests that these micro RNAs may be involved in the regulation of cell survival signalling pathways. Three micro RNAs(mi R-187-3p, mi R-135b-5p and mi R-31-5p) were expressed at higher levels in postablation neosquamous mucosa than in matched proximal squamous and healthy squamous mucosa. These mi RNAs were expressed at similar levels in preablation Barrett's esophagus mucosa, matched proximal squamous and squamous mucosa from controls. Target prediction and pathway analysis suggests that these micro RNAs may be involved in regulating the expression of proteins that contribute to barrier function.CONCLUSION Neosquamous mucosa arising after ablation of Barrett's esophagus expresses micro RNAs that may contribute to decreased barrier function and micro RNAs that may be involved in the regulation of survival signaling pathways.Loveena Sreedharan George C Mayne David I Watson Timothy Bright Reginald V Lord Alfiya Ansar Tingting Wang Jakob Kist David StJ Astill Damian J Hussey 2017World Journal of Gastroenterology2017,23,30:3
5Further geological and palaeoanthropological investigations at the Maludong hominin site, Yunnan Province, Southwest China显示文摘Three-dimensional mapping and section work undertaken by us in 2008 have identified 11 stratigraphic units at Maludong site.AMS radiocarbon dating of charcoal established an accurate and internally consistent age profile for the sequence of 17.8±0.2 ka to 13.2±0.1 ka.Archaeomagnetic analysis showed changes in externally derived pedogenically enhanced material consistent with a warming in climate between the cold period of Henrich Event 1 and the B lling-Aller d interstadial.Human remains recovered during the 1989 excavation were derived from a deposit dating to this interstadial,or between 14.3±0.3 ka and 13.5±0.1 ka.Anthropogenic features,including burnt rocks,baked sediment and thick charcoal and ash layers,were identified and examined through archaeomagnetic analysis.Two monkey fossils are described here,one of them being reassigned from Macaca robustus to M.aff.M.assamensis.They confirm the young age of the site and also show signs of anthropogenic alteration in the form of burning.Additional human cranial remains are reported for the first time and new data are provided for some specimens described previously.A range of new features is identified that strengthen the affinities of the Maludong remains to archaic humans.The presence of this globally unique mosaic of archaic and modern features raises important questions about human evolutionary history in East Asia during the Late Upper Pleistocene.JI XuePing CURNOE Darren BAO ZhenDe HERRIES Andy I R FINK David ZHU YunSheng HELLSTROM John LUO Yun TACON Paul S C 2013Chinese Science Bulletin2013,58,35:3
6Immunohistoehemical analysis of ras oncogene p21 product in human gastric carcinomas and their adjacent mucosa显示文摘Carneiro F David I Sunkel C 1992Pathol Res Praet1992,188,1:2
7Characterization of intrapelvic pressure during ureteropyeloscopy with ureteral access sheaths显示文摘Jamil Rehman Manoj Monga Jaime Landman David I Lee Tamer Felfela Marius C Conradie Rajamahanty Srinivas Chandru P Sundaram Ralph V Clayman 2003Urology2003,,4:2
8Genome sequence and analysis of the soil cellulolytic actinomyeete Thermobifidafusca YX 显示文摘Athanasios L Konstantinos M Natalia I lain A Miriam L Genevieve D Michele M Alia L Susan L Alex C Paul R David BW Nikos K 2007J Bacteriol2007,189,6:1
9Ramsdellite-MnO2 for lithium batteries: The ramsdellite to spinel transformation显示文摘THACKERAY M M ROSSOUW M H GUMMOW R J LILES D C PEARCE K KOCK A D DAVID W I F HULLS S 1993Electrochim Acta1993,38,9:1
10LIGHT, a New Member of the TNF Superfamily, and Lymphotoxin α Are Ligands for Herpesvirus Entry Mediator显示文摘Davide N Mauri Reinhard Ebner Rebecca I Montgomery Kristine D Kochel Timothy C Cheung Guo-Liang Yu Steve Ruben Marianne Murphy Roselyn J Eisenberg Gary H Cohen Patricia G Spear Carl F Ware 1998Immunity1998,,:1
11Host plant evaluation behaviour of Bemisia tabaci and its modification by external uptake of imidacloprid显示文摘RUFUS I MATTHEW C DAVID N B 1999Physiol Entomol1999,24,:1
12Genetic discontinuity reveal by chloroplast mierosatellite in eastern north American abies(Pinaceae) 显示文摘Catherine M C I Thomas R W David M M 2000American Journal of Botany2000,87,:1
13Mixed-species plantations of Eucalyptus with nitrogen-fixing trees:A review显示文摘 Forrester J B Annette L C 2006Forest Ecology and Management2006,233,:1
14Growth response of selected vegetable crops to spent mushroom compost appli- cation in a controlled environment显示文摘SHERRY I-I W VIRGINIA I L DAVID L C 1984Plant and Soi11984,82,1:1
15Inthencce of SiO2 fillers on the irradiation ageing of silicone rubbers 显示文摘Stevenson I David L Gauthier C 2004Polymer2004,42,22:1
16Adeptive resource provisioning for read intensive multi-tier applications in the cloud显示文摘Waheed I Matthew N D David C 2011Future Generation Computer Systems2011,27,6:1
17显示文摘Stevenson I David L Gauthier C 2001Polymer2001,42,22:1
18Aquantitative study of fungiform papillase and taste pore density in adults and children 显示文摘Segovia C Hutchinson I David G 2002Developmental Brain Research2002,138,:1
19Two Sides to Attitudinal Commitment: The Effect of Calculative and Loyalty Commitment on Enforcement Mechanisms in Distribution Channels 显示文摘Gilliland David I Bello Daniel C 2002Journal of the Academy of Marketing Science2002,30,1:1
20Lignin modification daring eucalyptus globulus kraft pulping followed by totally chlorine-free bleaching: A two-dimensional nuclear magnetic resonance, fourier transform infrared, and pyrolysis-gas chromatography/mass spectrometry study显示文摘David I Mariaa I C V Jorge R 2007Journal of Agricultural and Food Chemistry2007,55,9:1
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