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| 1 | Dietary 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 | 2017 | World Journal of Gastroenterology2017，23，21： | 9 |
| 2 | Probiotic metabolites from Bacillus coagulans GanedenBC30^(TM) support maturation of antigen-presenting cells in vitro显示文摘AIM:To study the effects of probiotic metabolites on maturation stage of antigen-presenting immune cells.METHODS:Ganeden Bacillus coagulans 30(GBC30) bacterial cultures in log phase were used to isolate the secreted metabolite(MET) fraction.A second fraction was made to generate a crude cell-wall-enriched fraction,by centrifugation and lysis,followed by washing.A preparation of MET was subjected to size exclusion centrifugation,generating three fractions:< 3 kDa,3-30 kDa,and 30-200 kDa and activities were tested in comparison to crude MET and cell wall in primary cultures of human peripheral blood mononuclear cell(PBMC) as a source of antigen-presenting mononuclear phagocytes.The maturation status of mononuclear phagocytes was evaluated by staining with monoclonal antibodies towards CD14,CD16,CD80 and CD86 and analyzed by flow cytometry.RESULTS:Treatment of PBMC with MET supported maturation of mononuclear phagocytes toward both macrophage and dendritic cell phenotypes.The biological activity unique to the metabolites included a reduction of CD14+ CD16+ pro-inflammatory cells,and this property was associated with the high molecular weight metabolite fraction.Changes were also seen for the dendritic cell maturation markers CD80 and CD86.On CD14dim cells,an increase in both CD80 and CD86 expression was seen,in contrast to a selective increase in CD86 expression on CD14bright cells.The co-expression of CD80 and CD86 indicates effective antigen presentation to T cells and support of T helper cell differentiation.The selective expression of CD86 in the absence of CD80 points to a role in generating T regulatory cells.CONCLUSION:The data show that a primary mechanism of action of GBC30 metabolites involves support of more mature phenotypes of antigen-presenting cells,important for immunological decision-making. | Kathleen F Benson Kimberlee A Redman Steve G Carter David Keller Sean Farmer John R Endres Gitte S Jensen | 2012 | World Journal of Gastroenterology2012，18，16： | 8 |
| 3 | Carcinoma in situ in a 7 mm gallbladder polyp: Time to change current practice?显示文摘Detection of polypoid lesions of the gallbladder is increasing in conjunction with better imaging modalities. Accepted management of these lesions depends on their size and symptomatology. Polyps that are symptomatic and/or greater than 10 mm are generally removed, while smaller, asymptomatic polyps simply monitored. Here, a case of carcinoma-in-situ is presented in a 7 mm gallbladder polyp. A 25-year-old woman, who had undergone a routine cholecystectomy, was found to have an incidental 7 mm polyp containing carcinoma in situ. She had few to no risk factors to alert to her condition. There are few reported cases of cancer transformation in gallbladder polyps smaller than 10 mm reported in the literature. The overwhelming consensus, barring significant risk factors for cancer being present, is that such lesions should be monitored until they become symptomatic or develop signs suspicious for malignancy. In our patient's case this could have led to the possibility of missing a neoplastic lesion, which could then have gone on to develop invasive cancer. As gallbladder carcinoma is an aggressive cancer, this may have led to a tragic outcome. | David Kasle Amir A Rahnemai-Azar Shahida Bibi Vinaya Gaduputi Brian F Gilchrist Daniel T Farkas | 2015 | World Journal of Gastrointestinal Endoscopy2015，7，9： | 8 |
| 4 | Intracerebral haemorrhage显示文摘 | Adnan I Qureshi A David Mendelow Daniel F Hanley | 2009 | The Lancet . 2009 (9675)2009，，9675： | 3 |
| 5 | Prolonged feeding with guanidinoacetate, a methyl group consumer, exacerbates ethanol-induced liver injury显示文摘AIM To investigate the hypothesis that exposure to guanidinoacetate(GAA, a potent methyl-group consumer) either alone or combined with ethanol intake for a prolonged period of time would cause more advanced liver pathology thus identifying methylation defects as the initiator and stimulator for progressive liver damage.METHODS Adult male Wistar rats were fed the control or ethanolLieber De Carli diet in the absence or presence of GAA supplementation. At the end of 6 wk of the feeding regimen, various biochemical and histological analyses were conducted. RESULTS Contrary to our expectations, we observed that GAA treatment alone resulted in a histologically normal liver without evidence of hepatosteatosis despite persistence of some abnormal biochemical parameters. This protection could result from the generation of creatine from the ingested GAA. Ethanol treatment for 6 wk exhibited changes in liver methionine metabolism and persistence of histological and biochemical defects as reported before. Further, when the rats were fed the GAA-supplemented ethanol diet, similar histological and biochemical changes as observed after 2 wk of combined treatment, including inflammation, macroand micro-vesicular steatosis and a marked decrease in the methylation index were noted. In addition, rats on the combined treatment exhibited increased liver toxicity and even early fibrotic changes in a subset of animals in this group. The worsening liver pathology could be related to the profound reduction in the hepatic methylation index, an increased accumulation of GAA and the inability of creatine generated to exert its hepato-protective effects in the setting of ethanol.CONCLUSION To conclude, prolonged exposure to a methyl consumer superimposed on chronic ethanol consumption causes persistent and pronounced liver damage. | Natalia A Osna Dan Feng Murali Ganesan Priya F Maillacheruvu David J Orlicky Samuel W French Dean J Tuma Kusum K Kharbanda | 2016 | World Journal of Gastroenterology2016，22，38： | 2 |
| 6 | Optimal bidding strategies and modelling of imperfect information among competitive generators显示文摘 | Wen F S David A K | 2001 | IEEE Transactions on Power System2001，16，1： | 2 |
| 7 | Diabetic Retinopathy显示文摘 | Thomas W Gardner David A Antonetti Alistair J Barber Kathryn F LaNoue Steven W Levison | 2002 | Survey of Ophthalmology2002，，： | 2 |
| 8 | The safety of tenofovir disoproxil fumarate for the treatment of HIV infection in adults: the first 4 years显示文摘 | Mark R Nelson Christine Katlama Julio S Montaner David A Cooper Brian Gazzard Bonaventura Clotet Adriano Lazzarin Knud Schewe Joep Lange Christina Wyatt Sue Curtis Shan-Shan Chen Stephen Smith Norbert Bischofberger James F Rooney | 2007 | AIDS2007，，10： | 2 |
| 9 | Optimal bidding strategies and modeling of imperfect information among competitive generators显示文摘 | Wen F S David A K | 2001 | IEEE Trans on Power Systems2001，16，1： | 2 |
| 10 | Market power in electricity supply显示文摘 | David A K Wen F S | 2001 | IEEE Transactions on Energy Conversation2001，16，4： | 1 |
| 11 | Freeze drying of pharmaceutical excipients close to collapse temperature:Influence of the process conditions on process time and product quality显示文摘 | ANTONELLO A B SABRINA G DAVIDE F | 2009 | Drying Technology2009，27，： | 1 |
| 12 | Optimal bidding strategies for competitive generators and large consumers 显示文摘 | Wen F David A | 2001 | Electrical Power and Energy Systems2001，，23： | 1 |
| 13 | Antiestrogenic properties of raloxifene显示文摘 | Michael W D David E F Julie A N | 1995 | Parmacology1995，50，： | 1 |
| 14 | Cerebral hemispheric lateralization in cardiac autonomic control显示文摘 | Byung W Y Carlos A M David F C | 1997 | Arch Neurol1997，54，： | 1 |
| 15 | Engineering a simple, efficient code generator generator 显示文摘 | CHRISTOPER W F DAVID R H TODD A P | 1992 | ACM Letters on Programming Languages and Systems1992，1，3： | 1 |
| 16 | Vocal response to pain in piglets显示文摘 | Daniel M W Leah A B David F | 1998 | Applied Animal Behaviour Science1998，56，2： | 1 |
| 17 | Ramsdellite-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 | 1993 | Electrochim Acta1993，38，9： | 1 |
| 18 | Estimation of tropical forest structural characteristics using large-footprint lidar显示文摘 | Jason B Drake Ralph O Dubayah David B Clark Robert G Knox J.Bryan Blair Michelle A Hofton Robin L Chazdon John F Weishampel Steve Prince | 2001 | Remote Sensing of Environment2001，，2： | 1 |
| 19 | Work group demography,social integration,and turnover显示文摘 | O'Reilly Charles A III David F Caldwell and William P Barnett | 1989 | Administrative Science Quarterly1989，，34： | 1 |
| 20 | Effect of macrovesicular steatosis and other donor and recipient characteristics on the outcome of liver transplantation显示文摘 | Zamboni F Franchello A David E | 2001 | Clin Transplant2001，15，1： | 1 |
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