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386篇 您的检索式:作者名="Michael D G"
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1Is diabetes a causal agent for colorectal cancer? Pathophysiological and molecular mechanisms显示文摘The possible relationship between diabetes mellitus (DM) and colorectal cancer (CRC), concerning pathophysiological and molecular mechanisms is highlighted in this review. The most recent and complete articles and developments in this particular field were thoroughly reviewed. Common risk factors, such as obesity, sedentary lifestyle, and Western diet between DM and CRC, led to the theory that DM might be a causal agent for CRC development. Various studies have connected type 2 DM and CRC, either proximal or distal, in both sexes. Additionally, chronic insulin treatment has been linked with increased colorectal tumor risk among type 2 diabetic patients. Interestingly, elevated hemoglobin A1c has been proven to be an independent predictor of aggressive clinical behavior in CRC patients. These mechanisms include the insulin-like growth factor-hyperinsulinemia theory and the participation of oncogenic intracellular signaling pathways. Furthermore, it has been proposed that Cox-2 inhibitors might have a role in decreasing the incidence of CRC. Finally, the use of statins to reduce the risk for colon cancer in patients with diabetes has remained controversial. Diabetic patients over 50 should receive counseling regarding their elevated risk for CRC, and screening colonoscopy should be recommended before initiating insulin therapy. However, there are no current guidelines, and this strategy is not yet applicable to some countries, as the corresponding risk would not allow screening colonoscopy to be adopted. There is strong evidence to indicate that DM is a causal agent for CRC development. This conclusion provides new impetus for re-evaluating CRC screening worldwide.Olga Giouleme Michael D Diamantidis Marios G Katsaros 2011World Journal of Gastroenterology2011,17,4:15
2Burden of Clostridium difficile infection between 2010 and 2013:Trends and outcomes from an academic center in Eastern Europe显示文摘AIM:To analyze the incidence and possible risk factors in hospitalized patients treated with Clostridium difficile infection(CDI).METHODS:A total of 11751 patients were admitted to our clinic between 1 January 2010 and 1 May2013.Two hundred and forty-seven inpatients were prospectively diagnosed with CDI.For the risk analysis a 1:3 matching was used.Data of 732 patients matched for age,sex,and inpatient care period and unit were compared to those of the CDI population.Inpatient records were collected from an electronic hospital database and comprehensively reviewed.RESULTS:Incidence of CDI was 21.0/1000 admissions(2.1%of all-cause hospitalizations and 4.45%of total inpatient days).The incidence of severe CDI was 12.6%(2.63/1000 of all-cause hospitalizations).Distribution of CDI cases was different according to the unit type,with highest incidence rates in hematology,gastroenterology and nephrology units(32.9,25 and24.6/1000 admissions,respectively) and lowest rates in 1.4%(33/2312) in endocrinology and general internal medicine(14.2 and 16.9/1000 admissions)units.Recurrence of CDI was 11.3%within 12 wk after discharge.Duration of hospital stay was longer in patients with CDI compared to controls(17.6 ± 10.8d vs 12.4 ± 7.71 d).CDI accounted for 6.3%of allinpatient deaths,and 30-d mortality rate was 21.9%(54/247 cases).Risk factors for CDI were antibiotic therapy[including third-generation cephalosporins or fluoroquinolones,odds ratio(OR) = 4.559;P < 0.001],use of proton pump inhibitors(OR = 2.082,P< 0.001),previous hospitaiization within 12 mo(OR = 3.167,P < 0.001),previous CDI(OR = 15.32;P < 0.001),while presence of diabetes mellitus was associated with a decreased risk for CDI(OR = 0.484;P< 0.001).Treatment of recurrent cases was significantly different from primary infections with more frequent use of vancomycin alone or in combination(P < 0.001),and antibiotic therapy duration was longer(P < 0.02).Severity,mortality and outcome of primary infections and relapsing cases did not significantly differ.CONCLUSION:CDI was accounted for significant burden with longer hospitaiization and adverse outcomes.Antibiotic,PPI therapy and previous hospitaiization or CDI were risk factors for CDI.Zsuzsanna Kurti Barbara D Lovasz Michael D Mandel Zoltan Csima Petra A Golovics Bence D Csako Anna Mohas Lorant Gnczi Krisztina B Gecse Lajos S Kiss Miklos Szathmari Peter L Lakatos 2015World Journal of Gastroenterology2015,21,21:6
3Model combining pre-transplant tumor biomarkers and tumor size shows more utility in predicting hepatocellular carcinoma recurrence and survival than the BALAD models显示文摘AIM To assess the performance of BALAD, BALAD-2 and their component biomarkers in predicting outcome of hepatocellular carcinoma(HCC) patients after liver transplant.METHODS BALAD score and BALAD-2 class are derived from bilirubin, albumin, alpha-fetoprotein(AFP), Lens culinaris agglutinin-reactive AFP(AFP-L3), and des-gammacarboxyprothrombin(DCP). Pre-transplant AFP, AFP-L3 and DCP were measured in 113 patients transplanted for HCC from 2000 to 2008. Hazard ratios(HR) for recurrence and death were calculated. Univariate and multivariate regression analyses were conducted. C-statistics were used to compare biomarker-based to predictive models. RESULTS During a median follow-up of 12.2 years, 38 patients recurred and 87 died. The HRs for recurrence in patients with elevated AFP, AFP-L3, and DCP defined by BALAD cut-off values were 2.42(1.18-5.00), 1.86(0.98-3.52), and 2.83(1.42-5.61), respectively. For BALAD, the HRs for recurrence and death per unit increased score were 1.48(1.15-1.91) and 1.59(1.28-1.97). For BALAD-2, the HRs for recurrence and death per unit increased class were 1.45(1.06-1.98) and 1.38(1.09-1.76). For recurrence prediction, the combination of three biomarkers had the highest c-statistic of 0.66 vs. 0.64, 0.61, 0.53, and 0.53 for BALAD, BALAD-2, Milan, and UCSF, respectively. Similarly, for death prediction, the combination of three biomarkers had the highest c-statistic of 0.66 vs 0.65,0.61, 0.52, and 0.50 for BALAD, BALAD-2, Milan, and UCSF. A new model combining biomarkers with tumor size at the time of transplant(S-LAD) demonstrated the highest predictive capability with c-statistics of 0.71 and 0.69 for recurrence and death. CONCLUSION BALAD and BALAD-2 are valid in transplant HCC patients, but less predictive than the three biomarkers in combination or the three biomarkers in combination with maximal tumor diameter(S-LAD).Nicha Wongjarupong Gabriela M Negron-Ocasio Roongruedee Chaiteerakij Benyam D Addissie Essa A Mohamed Kristin C Mara William S Harmsen J Paul Theobald Brian E Peters Joseph G Balsanek Melissa M Ward Nasra H Giama Sudhakar K Venkatesh Denise M Harnois Michael R Charlton Hiroyuki Yamada Alicia Algeciras-Schimnich Melissa R Snyder Terry M Therneau Lewis R Roberts 2018World Journal of Gastroenterology2018,24,12:5
4Peginterferon alfa-2b plus ribavirin compared with interferon alfa-2b plus ribavirin for initial treatment of chronic hepatitis C: a randomised trial显示文摘Michael P Manns John G McHutchison Stuart C Gordon Vinod K Rustgi Mitchell Shiffman Robert Reindollar Zachary D Goodman Kenneth Koury Mei-Hsiu Ling Janice K Albrecht 2001The Lancet2001,,9286:4
5Heme oxygenase-1 overexpression increases liver injury after bile duct ligation in rats显示文摘AIM: To investigate the effects of heme oxygenase-1 (HO-1) against oxidant-induced injury caused by bile duct ligation (BDL). METHODS: Either cobalt protoporphyrin (CoPP), a HO-1 inducer, or saline were injected intraperitoneally in male SD-rats. Three days later, BDL or sham-operations were performed. Rats were sacrificed 3 wk after BDL and livers were harvested for histology. Fibrosis was evaluated by sirius red staining and image analysis. Alpha-smooth muscular actin, which indicates activation of stellate cells, was detected by immunohistochemical staining, and cytokine and collagen-Ⅰα (Col-Ⅰα) mRNA expression was detected using RNase protection assays. RESULTS: Serum alanine transaminase increased 8-fold above normal levels one day after BDL. Surprisingly, enzyme release was not reduced in rats receiving CoPP. Liver fibrosis was evaluated 3 wk after BDL and the sirius red-positive area was found to be increased to about 7.8%. However, in CoPP pretreated rats sirius red- positive areas were increased to about 11.7% after BDL. Collagen-Ⅰα and TGF-β mRNA increased significantly by BDL. Again, this effect was increased by HO-1 overexpression.CONCLUSION: Hepatic fibrosis due to BDL is not reduced by the HO-1 inducer CoPP. In contrast, HO-1 overexpression increases liver injury in rats under conditions of experimental chronic cholestasis.Matthias Froh Lars Conzelmann Peter Walbrun Susanne Netter Reiner Wiest Michael D Wheeler Mark Lehnert Takehiko Uesugi Jurgen Scholmerich Ronald G Thurman 2007World Journal of Gastroenterology2007,13,25:4
6Peginterferon alfa-2b plus ribavirin compared with interferon alfa-2b plus ribavirin for initial treatment of chronic hepatitis C: a randomised trial显示文摘Michael P Manns John G McHutchison Stuart C Gordon Vinod K Rustgi Mitchell Shiffman Robert Reindollar Zachary D Goodman Kenneth Koury Mei-Hsiu Ling Janice K Albrecht 2001The Lancet . 2001 (9286)2001,,9286:4
7Effect of electrical stimulation of the lower esophageal sphincter in gastroesophageal reflux disease patients refractory to proton pump inhibitors显示文摘AIM: To evaluate the efficacy of lower esophageal sphincter(LES)-electrical stimulation therapy(EST) in a subgroup of patients that reported only partial response to proton pump inhibitors(PPIs) therapy, compared to a group of patient with complete response.METHODS: Bipolar stitch electrodes were laparoscopically placed in the LES and connected to an implantable pulse generator(EndoS tim BV, the Hague, the Netherlands), placed subcutaneously in the anterior abdominal wall. Stimulation at 20 Hz, 215 μsec, 3-8 m Amp in 30 min sessions was delivered starting on day 1 post-implant. Patients were evaluated using gastroesophageal reflux disease(GERD)-HRQL, symptom diaries; esophageal p H and esophageal manometry before and up to 24 mo after therapy and results were compared between partial and complete responders.RESULTS: Twenty-three patients with GERD on LESEST were enrolled and received continuous per-protocol stimulation through 12 mo and 21 patients completed 24 mo of therapy. Of the 23 patients, 16(8 male, mean age 52.1 ± 12 years) had incomplete response to PPIs prior to LES-EST, while 7 patients(5 male, mean age 52.7 ± 4.7) had complete response to PPIs. In the sub-group with incomplete response to PPIs, median(IQR) composite GERD-HRQL score improved significantly from 9.5(9.0-10.0) at baseline on-PPI and 24.0(20.8-26.3) at baseline off-PPI to 2.5(0.0-4.0) at 12-mo and 0.0(0.0-2.5) at 24-mo follow-up(P < 0.05 compared to on-and off-PPI at baseline). Median(IQR) % 24-h esophageal pH < 4.0 at baseline in this sub-group improved significantly from 9.8%(7.8-11.5) at baseline to 3.0%(1.9-6.3) at 12 mo(P < 0.001) and 4.6%(2.0-5.8) at 24 mo follow-up(P < 0.01). At their 24-mo follow-up, 9/11 patients in this sub-group were completely free of PPI use. These results were comparable to the sub-group that reported complete response to PPI therapy at baseline. No unanticipated implantation or stimulation-related adverse events, or any untoward sensation due to stimulation were reported in either group and LES-EST was safely tolerated by both groups. CONCLUSION: LES-EST is safe and effective in controlling symptoms and esophageal acid exposure in GERD patients with incomplete response to PPIs. These results were comparable to those observed PPI responders.Edy Soffer Leonardo Rodríguez Patricia Rodriguez Beatriz Gómez Manoel G Neto Michael D Crowell 2016World Journal of Gastrointestinal Pharmacology and Therapeutics2016,7,1:4
8Peginterferon alfa-2b plus ribavirin compared with interferon alfa-2b plus ribavirin for initial treatment of chronic hepatitis C: a randomised trial显示文摘Michael P Manns John G McHutchison Stuart C Gordon Vinod K Rustgi Mitchell Shiffman Robert Reindollar Zachary D Goodman Kenneth Koury Mei-Hsiu Ling Janice K Albrecht 20012001 (9286)2001,,9286:4
9Nat 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
1022-gauge core vs 22-gauge aspiration needle for endoscopic ultrasound-guided sampling of abdominal masses显示文摘AIM To compare the aspiration needle(AN) and core biopsy needle(PC) in endoscopic ultrasound-guided fine needle aspiration(EUS-FNA) of abdominal masses.METHODS Consecutive patients referred for EUS-FNA were included in this prospective single-center trial. Each patient underwent a puncture of the lesion with both standard 22-gauge(G) AN(Echo Tip Ultra; Cook Medical, Bloomington, Indiana, United States) and the novel 22 G PC(Echo Tip Pro Core; Cook Medical, Bloomington, Indiana, United States) in a randomized fashion; histology was attempted in the PC group only. The main study endpoint was the overall diagnostic accuracy, including the contribution of histology to the final diagnosis. Secondary outcome measures included material adequacy, number of needle passes, and complications.RESULTS Fifty six consecutive patients(29 men; mean age 68 years) with pancreatic lesions(n = 38), lymphadenopathy(n = 13), submucosal tumors(n = 4), or others lesions(n = 1) underwent EUS-FNA using both of the needles in a randomized order. AN and PC reached similar overall results for diagnostic accuracy(AN: 88.9 vs PC: 96.1, P = 0.25), specimen adequacy(AN: 96.4% vs PC: 91.1%, P = 0.38), mean number of passes(AN: 1.5 vs PC: 1.7, P = 0.14), mean cellularity score(AN: 1.7 vs PC: 1.1, P = 0.058), and complications(none). A diagnosis on the basis of histology was achieved in the PC group in 36(64.3%) patients, and in 2 of those as the sole modality. In patients with available histology the mean cellularity score was higher for AN(AN: 1.7 vs PC: 1.0, P = 0.034); no other differences were of statistical significance.CONCLUSION Both needles achieved high overall diagnostic yields and similar performance characteristics for cytological diagnosis; histological analysis was only possible in 2/3 of cases with the new needle.William Sterlacci Athanasios D Sioulas Lothar Veits Pervin G?nüllü Guido Schachschal Stefan Groth Mario Anders Christos K Kontos Theodoros Topalidis Andrea Hinsch Michael Vieth Thomas R?sch Ulrike W Denzer 2016World Journal of Gastroenterology2016,22,39:2
11Prognostically relevant gene signatures of high-grade serous ovarian carcinoma显示文摘Verhaak Roel G W Tamayo Pablo Yang Ji-Yeon Hubbard Diana Zhang Hailei Creighton Chad J Fereday Sian Lawrence Michael Carter Scott L Mermel Craig H Kostic Aleksandar D Etemadmoghadam Dariush Saksena Gordon Cibulskis Kristian Duraisamy Sekhar 2013Journal of Clinical Investigation2013,,1:2
12Anti-hypertensive drugs in children and adolescents显示文摘Worldwide the prevalence of essential hypertension inchildren and adolescents continues to increase. Tradi-tionally providers have used 'off-label' drugs to treatpediatric hypertension, meaning that rigorous clinicaltrials of these drugs have not been specifically per-formed in pediatric patient populations. Consequentlyproviders have extrapolated dosing, safety and efficacyfrom trials in adults. This practice is sub-optimal as chil-dren demonstrate unique differences in drug metabo-lism and response. Use of unstudied or understudieddrugs increases risk of adverse events and/or can leadto sub-optimal efficacy. Recognizing these concerns,regulatory agencies have created financial incentivesfor industry to conduct pediatric clinical trials. Theseincentives, coupled with the emerging pediatric hyper-tension epidemic, have spurred over 30 clinical trialsof anti-hypertensive drugs over the past 15 years andhave resulted in labeling of 10 new drugs by the UnitedStates Food and Drug Administration for treatment ofhypertension in children and adolescents. Unfortunatelythe financial incentive structures focus on newer drugsand drug classes. Consequently there is now a relativedearth of trial data for older but sometimes commonlyprescribed pediatric antihypertensive drugs. This article reviews recent pediatric antihypertensive drug trials with a focus on trial design and endpoints, drug dosing, safety, efficacy and specific drug indications. We also review the available data and experience for some of the more commonly prescribed, but less well studied 'older' pediatric antihypertensive drugs.Patricia Y Chu Michael J Campbell Stephen G Miller Kevin D Hill 2014World Journal of Cardiology2014,6,5:2
13Liver Resection for Metastatic Colorectal Cancer in Patients with Concurrent Extrahepatic Disease: Results in 127 Patients Treated at a Single Center显示文摘Darren R. Carpizo PhD Chandrakanth Are MD William Jarnagin MD Ronald DeMatteo MD Yuman Fong MD Mithat G?nen PhD Leslie Blumgart MD Michael D'Angelica MD 2009Annals of Surgical Oncology2009,,8:2
14Preoperative CA 19-9 and the Yield of Staging Laparoscopy in Patients with Radiographically Resectable Pancreatic Adenocarcinoma显示文摘Shishir K. Maithel MD Stephen Maloney MD Corrine Winston MD Mithat G?nen PhD Michael I. D'Angelica MD Ronald P. DeMatteo MD William R. Jarnagin MD Murray F. Brennan MD Peter J. Allen MD 2008Annals of Surgical Oncology2008,,12:2
15Cardiac resynchronization therapy for the treatment of heart failure in patients with intraventricular conduction delay and malignant ventricular tachyarrhythmias显示文摘Steven L Higgins John D Hummel Imran K Niazi Michael C Giudici Seth J Worley Leslie A Saxon John P Boehmer Michael B Higginbotham Teresa De Marco Elyse Foster Patrick G Yong 2003Journal of the American College of Cardiology2003,,8:2
16Liver Planning Software Accurately Predicts Postoperative Liver Volume and Measures Early Regeneration显示文摘Amber L. Simpson David A. Geller Alan W. Hemming William R. Jarnagin Logan W. Clements Michael I. D’Angelica Prashanth Dumpuri Mithat G?nen Ivan Zendejas Michael I. Miga James D. Stefansic 2014Journal of the American College of Surgeons2014,,:2
17Diagnosis and treatment of copper toxicosis in ruminants 显示文摘Auza N J William G D Michael J M et ol 1999JAVMA1999,214,:1
18Dynamically discovering likely program invariants to support program evolution显示文摘Michael D Ernst Jake Cockrell William G Griswold 2001IEEE Transactions on Software Engineering2001,27,2:1
19Alfalfa yield and quality as influenced by establishment method显示文摘Michael D H Kenneth J M Ronald G 2002Agronomy Journal2002,94,1:1
20A Selective Approach to the Resection of Cystic Lesions of the Pancreas显示文摘Peter JA Michael D Mithat G 2006Ann Surg2006,244,4:1
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