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| 1 | Noninvasive indocyanine green plasma disappearance rate predicts early complications,graft failure or death after liver transplantation显示文摘BACKGROUND:Early detection of graft malfunction or postoperative complications is essential to save patients and organs after orthotopic liver transplantation (OLT).Predictive tests for graft dysfunction are needed to enable earlier implementation of organ-saving interventions following transplantation.This study was undertaken to assess the value of indocyanine green plasma disappearance rates (ICG-PDRs) for predicting postoperative complications,graft dysfunction and patient survival following OLT.METHODS:Eighty-six patients undergoing OLT were included in this single-centre trial.ICG-PDR was assessed daily for the first 7 days following OLT.Endpoints were graft loss or death within 30 days and postoperative complications,graft loss,or death within 30 days.RESULTS:Postoperative complications of 31 patients included deaths (12 patients) or graft losses.ICG-PDR was significantly different in patients whose endpoints were graft loss or death beginning from day 3 and in those whose endpoints were graft loss,death,or postoperative complications beginning from day 4 after OLT.For day 7 measurements,receiver operating characteristic curve analysis revealed an ICG-PDR cut-off for predicting death or graft loss of 9.6% per min (a sensitivity of 75.0%,a specificity of 72.6%,positive predictive value 0.35 negative predictive value 0.94).For prediction of graft loss,death or postoperative complications,the ICG-PDR cut-off was 12.3%per min (a sensitivity of 68.9%,a specificity of 66.7%,positive predictive value 0.57,negative predictive value 0.77).CONCLUSIONS:ICG-PDR measurements on postoperative day 7 are predictive of early patient outcomes following OLT.The added value over that of routinely determined laboratory parameters is low. | Lutz Schneider Martin Spiegel Sebastian Latanowicz Markus A Weigand Jan Schmidt Jens Werner Wolfgang Stremmel Christoph Eisenbach | 2011 | Hepatobiliary & Pancreatic Diseases International2011，10，4： | 6 |
| 2 | The burden of IBS: Looking at metrics显示文摘 | Brennan M. R. Spiegel | 2009 | Current Gastroenterology Reports2009，，4： | 4 |
| 3 | N-alkylamide profiling of Achillea ptarmica and Achillea millefolium extracts by liquid and gas chromatography–mass spectrometry显示文摘Achillea millefolium and Achillea ptarmica are both plants belonging to the Asteracea family and are traditionally used for their medicinal properties. It has already been shown that some N-alkylamides(NAAs)are responsible for these pharmacological actions. Therefore, in the present study, the NAA content of the two plants was analytically characterised. Different extracts were prepared from the roots, the leaves, the stems and the flowers. The structures of NAAs have been assigned in ethanolic extracts of Achillea millefolium and Achillea ptarmica using high performance liquid chromatography – electrospray ionisation – mass spectrometry(HPLC–ESI–MS) and gas chromatography – electron impact – mass spectrometry(GC–EI–MS). Using both analytical techniques, the structures of 14 and 15 NAAs have been assigned in Achillea ptarmica and Achillea millefolium, respectively. Structures of two new NAAs, previously never observed in Achillea ptarmica,were assigned: deca-2E,6Z,8E-trienoic acid 2-methylbutylamide(homospilanthol) or a related isomeric compound and deca-2E,4E-dienoic acid N-methyl isobutylamide. The structure of homospilanthol or a related isomeric compound was also assigned in Achillea millefolium for the first time. | Lieselotte Veryser Lien Taevernier Evelien Wynendaele Yannick Verheust Ann Dumoulin Bart De Spiegeleer | 2017 | Journal of Pharmaceutical Analysis2017，7，1： | 3 |
| 4 | Colonic stent vs. emergency surgery for management of acute left-sided malignant colonic obstruction: a decision analysis显示文摘 | Laura E. Targownik Brennan M. Spiegel Jonathan Sack Oscar J. Hines Gareth S. Dulai Ian M. Gralnek James J. Farrell | 2004 | Gastrointestinal Endoscopy2004，，6： | 3 |
| 5 | Reversed-phase fused-core HPLC modeling of peptides显示文摘Different fused-core stationary phase chemistries(C18,Amide,Phenyl-hexyl and Peptide ES-C18) were used for the analysis of 21 structurally representative model peptides.In addition,the effects of the mobile phase composition(ACN or MeOH as organic modifier;formic acid or acetic acid,as acidifying component) on the column selectivity,peak shape and overall chromatographic performance were evaluated.The RP-amide column,combined with a formic acid-acetonitrile based gradient system,performed as best.A peptide reversed-phase retention model is proposed,consisting of 5 variables:log SumAA,log Sv,clog P,log nHDon and log nHAcc.Quantitative structure-retention relationship(QSRR) models were constructed for 16 different chromatographic systems.The accuracy of this peptide retention model was demonstrated by the comparison between predicted and experimentally obtained retention times,explaining on average 86% of the variability.Moreover,using an external set of 5 validation peptides,the predictive power of the model was also demonstrated.This peptide retention model includes the novel in-silico calculated amino acid descriptor,AA,which was calculated from log P,3D-MoRSE,RDF and WHIM descriptors. | Matthias D'Hondt Bert Gevaert Sofie Stalmans Sylvia Van Dorpe Evelien Wynendaele Kathelijne Peremans Christian Burvenich Bart De Spiegeleer | 2013 | Journal of Pharmaceutical Analysis2013，3，2： | 3 |
| 6 | Dietary copper triggers onset of fulminant hepatitis in the Long-Evans cinnamon rat model显示文摘AIM:To investigate the impact of dietary copper given at different time points on the onset of fulminant hepatitis. METHODS:The Long-Evans cinnamon (LEC) rat model of Wilson's disease (WD) was used to study the impact of high dietary copper (hCu) on the induction of fulminant hepatitis at early or late time points of life. High Cu diet was started in rat pups or in adults (month 5) for three months. Animals that received reduced dietary copper (rCu) throughout their lifetime served as a control. Hepatitis-associated serum markers (alanine aminotransferase, aspartate transaminase, bilirubin) were analyzed in animal groups receiving hCu or rCu. Liver copper content and liver histology were revealed at sacrifice. A set of 5 marker genes previously found to be affected in injured liver and which are related to angiogenesis (Vegfa), fat metabolism (Srebf1), ex-tracellular matrix (Timp1), oxidative stress (Hmox1), and the cell cycle (Cdkn1a) were analyzed by real-time polymerase chain reaction. RESULTS:Regardless of the time point when hCu was started, LEC rats (35/36) developed fulminant hepatitis and died. Animals receiving rCu (36/36) remained healthy, did not develop hepatitis, and survived long term without symptoms of overt disease, although liver copper accumulated in adult animals (477 ± 75 μg/g). With regard to start of hCu, onset of fulminant hepatitis was significantly (P < 0.001) earlier in adults (35 ± 9 d) that showed pre-accumulation of liver copper as compared to the pup group (77 ± 15 d). Hepatitis-associated serum markers, liver copper and liver histology, as well as gene expression, were affected in LEC rats receiving hCu. However, except for early and rapid onset of hepatitis, biochemical and molecular markers were similar at the early and late time points of disease. CONCLUSION:Rapid onset of fulminant hepatitis in asymptomatic LEC rats with elevated liver copper suggests that there is a critical threshold of liver copper which is important to trigger the course of WD. | Ramsi Siaj Vanessa Sauer Sandra Stppeler Hans-Ullrich Spiegel Gabriele Khler Andree Zibert Hartmut HJ Schmidt | 2012 | World Journal of Gastroenterology2012，18，39： | 3 |
| 7 | Atlantoaxial rotatory displacement in children显示文摘AIM To correlate the Pang and Lee class with the clinical course in a consecutive series of patients presenting with painful torticollis.METHODS Forty-seven dynamic rotational computed tomography(CT) scans in 35 patients were classified into one of the five types defined by Pang and Li, including types Ⅰ(atlantoaxial rotatopry fixation), Ⅱ('pathologic stickiness' without crossover of C1 on C2), Ⅲ('pathologic stickiness' with crossover of C1 on C2), Ⅳ(normal or muscular torticollis), and Ⅴ(diagnostic grey zone). The Pang and Li class was then compared with the radiologist's report, which was graded abnormal, diagnosis of rotatory subluxation or fixation, or non-diagnostic. Medical records were reviewed and the clinical course was compared among the five subtypes.RESULTS We reviewed 47 CT scans in 35 patients, and the majority were performed without sedation. The average age was 7.7 years(4-14 years old) and associated conditions included minor trauma(20%), surgical procedures around the head and neck(29%), and Grisels syndrome(20%). Twenty-six percent of our studies fell within the pathologic spectrum(5% type 1 or rotatory fixation, 21% types 2 and 3 or rotatory subluxation), while 45% were classified as muscular torticollis(45%) and 28% fell within the diagnostic grey zone. Seven radiologists interpreted these studies, and their interpretation was discordant in 45% of cases. Clinical resolution occurred in 27 of 29 cases for which follow-up was available. One of two patients with fixed rotatory subluxation required a C1-C2 arthrodesis.CONCLUSION The Pang and Li classification characterizes a spectrum of abnormalities in rotation to facilitate communication, although the indications for dynamic CT scan should be further defined. | David Spiegel Shikshya Shrestha Prakash Sitoula Norma Rendon John Dormans | 2017 | World Journal of Orthopedics2017，8，11： | 3 |
| 8 | Sphingosine-1-Phosphate Links Persistent STAT3 Activation, Chronic Intestinal Inflammation, and Development of Colitis-Associated Cancer显示文摘 | Jie Liang Masayuki Nagahashi Eugene Y. Kim Kuzhuvelil B. Harikumar Akimitsu Yamada Wei-Ching Huang Nitai C. Hait Jeremy C. Allegood Megan M. Price Dorit Avni Kazuaki Takabe Tomasz Kordula Sheldon Milstien Sarah Spiegel | 2013 | Cancer Cell2013，，： | 3 |
| 9 | Small Intestinal Bacterial Overgrowth in Irritable Bowel Syndrome: Systematic Review and Meta-analysis显示文摘 | Alexander C. Ford Brennan M.R. Spiegel Nicholas J. Talley Paul Moayyedi | 2009 | Clinical Gastroenterology and Hepatology2009，，12： | 2 |
| 10 | Endoscopy for acute upper GI tract hemorrhage: sooner is better显示文摘 | Brennan M.R. Spiegel | 2009 | Gastrointestinal Endoscopy2009，，2： | 2 |
| 11 | Bifunctional chimeric SuperCD suicide gene -YCD: YUPRT fusion is highly effective in a rat hepatoma model显示文摘AIM: To investigate the effects of catalytically superior gene-directed enzyme prodrug therapy systems on a rat hepatoma model.METHODS: To increase hepatoma cell chemosensitivity for the prodrug 5-fluorocytosine (5-FC), we generated a chimeric bifunctional SuperCD suicide gene, a fusion of the yeast cytosine deaminase (YCD) and the yeast uracil phosphoribosyltransferase (YUPRT) gene.RESULTS: In vitro stably transduced Morris rat hepatoma cells (MH) expressing the bifunctional SuperCD suicide gene (MH SuperCD) showed a clearly marked enhancement in cell killing when incubated with 5-FC as compared with MH ceils stably expressing YCD solely (MH YCD) or the cytosine deaminase gene of bacterial origin(MH BCD), respectively. In vivo, MH SuperCD tumors implanted both subcutaneously as well as orthotopically into the livers of syngeneic ACI rats demonstrated significant tumor regressions (P<0.01) under both high dose as well as low dose systemic 5-FC application,whereas MH tumors without transgene expression (MH naive) showed rapid progression. For the first time, an order of in vivo suicide gene effectiveness (SuperCD>>YCD > > BCD > > > negative control) was defi ned as a result of a directin vivo comparison of all three suicide genes.CONCLUSION: Bifunctional SuperCD suicide gene expression is highly effective in a rat hepatoma model,thereby significantly improving both the therapeutic index and the efficacy of hepatocellular carcinoma killing by fluorocytosine. | Florian Graepler Marie-Luise Lemken Wolfgang A Wybranietz Ulrike Schmidt Irina Smirnow Christine D GroB Martin Spiegel Andrea Schenk Schenk Hansj(o|¨)rg Graf Ulrike A Lauer Reinhard Vonthein Michael Gregor Sorin Armeanu Michael Bitzer Ulrich M.Lauer | 2005 | World Journal of Gastroenterology2005，11，44： | 2 |
| 12 | Endoscopic screening for esophageal varices in cirrhosis: Is it ever cost effective?显示文摘 | Brennan M.R. Spiegel Laura Targownik Gareth S. Dulai Hetal A. Karsan Ian M. Gralnek | 2003 | Hepatology2003，，2： | 2 |
| 13 | The Effect of Irritable Bowel Syndrome on Health-Related Quality of Life and Health Care Expenditures显示文摘 | Nikhil Agarwal Brennan M.R. Spiegel | 2011 | Gastroenterology Clinics of North America2011，，1： | 2 |
| 14 | Neuromuscular scoliosis and pelvic fixation in 2015: Where do we stand?显示文摘Neuromuscular scoliosis is a challenging problem to treat in a heterogeneous patient population. When thedecision is made for surgery the surgeon must select a technique employed to correct the curve and achieve the goals of surgery, namely a straight spine over a level pelvis. Pre-operatively the surgeon must ask if pelvic fixation is worth the extra complications and infection risk it introduces to an already compromised host. Since the advent of posterior spinal fusion the technology used for instrumentation has changed drastically. However, many of the common problems seen with the unit rod decades ago we are still dealing with today with pedicle screw technology. Screw cut out, pseudoarthrosis, non-union, prominent hardware, wound complications, and infection are all possible complications when extending a spinal fusion construct to the pelvis in a neuromuscular scoliosis patient. Additionally, placing pelvic fixation in a neuromuscular patient results in extra blood loss, greater surgical time, more extensive dissection with creation of a deep dead space, and an incision that extends close to the rectum in patients who are commonly incontinent. Balancing the risk of placing pelvic fixation when the benefit, some may argue, is limited in non-ambulating patients is difficult when the literature is so mottled. Despite frequent advancements in technology issues with neuromuscular scoliosis remain the same and in the next 10 years we must do what we can to make safe neuromuscular spine surgery a reality. | Jason B Anari David A Spiegel Keith D Baldwin | 2015 | World Journal of Orthopedics2015，6，8： | 2 |
| 15 | Sphingosine-1-phosphate signaling and its role in disease显示文摘 | Michael Maceyka Kuzhuvelil B. Harikumar Sheldon Milstien Sarah Spiegel | 2011 | Trends in Cell Biology2011，，1： | 2 |
| 16 | Sphingosine-1-phosphate signaling and its role in disease显示文摘 | Michael Maceyka Kuzhuvelil B. Harikumar Sheldon Milstien Sarah Spiegel | 2011 | Trends in Cell Biology2011，，1： | 2 |
| 17 | Lysophospholipid receptor nomenclature review: IUPHAR Review 8显示文摘 | Yasuyuki Kihara Michael Maceyka Sarah Spiegel Jerold Chun | 2014 | Br J Pharmacol2014，，15： | 2 |
| 18 | Procalcitonin (PCT)-guided algorithm reduces length of antibiotic treatment in surgical intensive care patients with severe sepsis: results of a prospective randomized study显示文摘 | S. Schroeder M. Hochreiter T. Koehler A.-M. Schweiger B. Bein F. S. Keck T. Spiegel | 2009 | Langenbeck’s Archives of Surgery2009，，2： | 2 |
| 19 | Analytical quality-by-design approach for sample treatment of BSA-containing solutions显示文摘The sample preparation of samples conlaining bovine serum albumin(BSA),e.g..as used in transdermal Franz diffusion cell(FDC) solutions,was evaluated using an analytical qualily-by-design(QbD)approach.Traditional precipitation of BSA by adding an equal volume of organic solvent,often successfully used with conventional HPLC-PDA,was found insufficiently robust when novel fused-core HPLC and/or UPLC-MS methods were used.In this study,three factors(acetonitrile(%).formic acid(%) and boiling time(min)) were included in the experimental design to determine an optimal and more suitable sample treatment of BSAcontaining FDC solutions.Using a QbD and Derringer desirability(D) approach,combining BSA loss,dilution factor and variability,we constructed an optimal working space with the edge of failure defined as D<0.9.The design space is modelled and is confirmed to have an ACN range of 83 ± 3% and FA content of 1 ±0.25%. | Lien Taevernier Evelien Wynendaele Matthias D'Hondt Bart De Spiegeleer | 2015 | Journal of Pharmaceutical Analysis2015，5，1： | 2 |
| 20 | Chlorination and oxidation of iron chromium nickel and their alloys in chloridizing and oxidizing atmospheres at 400~700℃显示文摘 | Zahs A Spiegel M Grabke H J | 2000 | Corrosion Science2000，42，： | 1 |
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