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| 1 | Folic acid supplementation inhibits recurrence of colorectal adenomas:A randomized chemoprevention trial显示文摘AIM: To determine whether folic acid supplementation will reduce the recurrence of colorectal adenomas, the precursors of colorectal cancer, we performed a double-blind placebo-controlled trial in patients with adenomatous polyps. METHODS: In the current double-blind, placebo-controlled trial at this VA Medical Center, patients with colorectal adenomas were randomly assigned to receive either a daily 5 mg dose of folic acid or a matched identical placebo for 3 years. All polyps were removed at baseline colonoscopy and each patient had a follow up colonoscopy at 3 years. The primary endpoint was a reduction in the number of recurrent adenomas at 3 years. RESULTS: Of 137 subjects, who were eligible after confirmation of polyp histology and run-in period to conform compliance, 94 completed the study; 49 in folic acid group and 45 in placebo group. Recurrence of adenomas at 3-year was compared between the two groups. The mean number of recurrent polyps at 3-year was 0.36 (SD, 0.69) for folic acid treated patients compared to 0.82 (SD, 1.17) for placebo treated subjects, resulting in a 3-fold increase in polyp recurrence in the placebo group. Patients below 70 years of age and those with left-sided colonicadenomas or advanced adenomas responded better to folic acid supplementation. CONCLUSION: High dose folic acid supplementation is associated with a signif icant reduction in the recurrence of colonic adenomas suggesting that folic acid may be an effective chemopreventive agent for colorectal neoplasia. | Richard Jaszewski Sabeena Misra Martin Tobi Nadeem Ullah Jo Ann Naumoff Omer Kucuk Edi Levi Bradley N Axelrod Bhaumik B Patel Adhip PN Majumdar | 2008 | World Journal of Gastroenterology2008，14，28： | 10 |
| 2 | Gastric mucin expression in Helicobacter pylori-related, nonsteroidal anti-inflammatory drug-related and idiopathic ulcers显示文摘AIM: To determine the pattern of secreted mucin expression in Helicobacter pylori (H. pylori)-related, nonsteroidal anti-inflammatory drug (NSAID)-related and idiopathic gastric ulcers. METHODS: We randomly selected 92 patients with H. pylori-associated (n = 30), NSAID-associated (n = 18), combined H. pylori and NSAID-associated gastric ulcers (n = 24), and patients with idiopathic gastric ulcers (n = 20). Immunohistochemistry for T-cell CD4/CD8, andfor mucin 5AC (MUC5AC) and mucin 6 (MUC6), was performed on sections of the mucosa from the ulcer margin. Inflammation score was assessed according to the Sydney system. RESULTS: MUC5AC was expressed on the surface epithelium (98.9%) and neck glands (98.9%) with minimal expression in the deep glands (6.5%). MUC6 was strongly expressed in the deep glands (97.8%), variable in the neck glands (19.6%) and absent in the surface epithelium (0%). The pattern of mucin expression in idiopathic ulcer margins was not different from the expression in ulcers associated with H. pylori, NSAIDs, or combined H. pylori and NSAIDs. CD4/CD8 ratio was higher in H. pylori-positive patients (P = 0.009). Idiopathic ulcers are associated with hospitalized patients and have higher bleeding and mortality rates. CONCLUSION: Idiopathic ulcers have a unique clinical profile. Gastric mucin expression in idiopathic gastric ulcers is unchanged compared with H. pylori and/or NSAID-associated ulcers. | Doron Boltin Marisa Halpern Zohar Levi Alex Vilkin Sara Morgenstern Samuel B Ho Yaron Niv | 2012 | World Journal of Gastroenterology2012，18，33： | 5 |
| 3 | Cancer stem cells in Helicobacter pylori infection and aging: Implications for gastric carcinogenesis显示文摘AIM: To demonstrated the combined effects of aging and carcinogen treatment on cancer stem/stem-like cells(CSCs) of gastric mucosa in an animal model. METHODS: In this study we investigated the effects of aging and Helicobacter pylori(H. pylori) inflammation as a model for inflammation induced carcinogenesis in human and rat gastric mucosa samples. In aging studies, we compared 4-mo old(young) with 22 mo(aged) old Fischer-344 rats. For human studies, gastric biop-sies and resection specimens representing normal mucosa or different stages of H. pylori gastritis and gastric adenocarcinomas were used for determining the expression of stem cell markers CD166, ALDH1 and LGR5. In addition we performed immunofluorescent double labeling for B-catenin and Lgr5 in both rat and human gastric tissues to examine the status of Wnt signaling in these cells. RESULTS: CSC markers ALDH1, LGR5, and CD166 were expressed in very low levels in normal human gastric mucosa or young rat gastric mucosa. In contrast, level of expression for all three markers significantly increased in H. pylori gastritis and gastric adenocarcinomas as well as in normal gastric mucosa in aged rats. We also observed cytoplasmic B-catenin staining in both aged rat and human H. pylori inflamed gastric mucosa, which were found to be colocalized with Lgr5 immunoreactive cells. The increased number of ALDH1, CD166 and LGR5 positive cells in H. pylori gastritis indicates that increased number of stem-like cells in gastric mucosa is an early event, and may constitute an important step in the progression to neoplasia. CONCLUSION: Our observation of the age-related increase in cancer stem/stem-like cells in the gastric mucosa may explain the increased incidence of gastric cancer during aging. Combination of aging and H. pylori infection may have additive effects in progression to neoplasia. | Edi Levi Paula Sochacki Nabiha Khoury Bhaumik B Patel Adhip PN Majumdar | 2014 | World Journal of Gastrointestinal Pathophysiology2014，5，3： | 5 |
| 4 | Membrane-bound mucins and mucin terminal glycans expression in idiopathic or Helicobacter pylori, NSAID associated peptic ulcers显示文摘AIM:To determine the expression of membrane-bound mucins and glycan side chain sialic acids in Helicobacter pylori(H.pylori)-associated,non-steroidal inflammatory drug(NSAID)-associated and idiopathic-gastric ulcers.METHODS:We studied a cohort of randomly selected patients with H.pylori(group 1,n=30),NSAID(group 2,n=18),combined H.pylori and NSAID associated gastric ulcers(group 3,n=24),and patients with idiopathic gastric ulcers(group 4,n=20).Immunohistochemistry for MUC1,MUC4,MUC17,and staining for Erythrina cristagalli agglutinin and Sambucus nigra agglutinin(SNA)lectins was performed on sections from the ulcer margins.RESULTS:Staining intensity of MUC17 was higher in H.pylori ulcers(group 1)than in idiopathic ulcers(group4),11.05±3.67 vs 6.93±4.00 for foveola cells,and10.29±4.67 vs 8.00±3.48 for gland cells,respectively(P<0.0001).In contrast,MUC1 expression was higher in group 4 compared group 1,9.89±4.17 vs 2.93±5.13 in foveola cells and 7.63±4.60 vs 2.57±4.50 for glands,respectively(P<0.0001).SNA lectin staining was increased in group 4,in parallel to elevated MUC1expression,indicating more abundantα2-6 sialylation in that group.CONCLUSION:Cytoplasmic MUC17 staining was sig-nificantly decreased in the cases with idiopathic ulcer.The opposite was observed for both MUC1 and SNA lectin.This observation may reflect important pathogenic mechanisms,since different mucins with altered sialylation patterns may differ in their protection efficiency against acid and pepsin. | Yaron Niv Doron Boltin Marisa Halpern Miriam Cohen Zohar Levi Alex Vilkin Sara Morgenstern Vahig Manugian Erica St Lawrence Pascal Gagneux Sukhwinder Kaur Poonam Sharma Surinder K Batra Samuel B Ho | 2014 | World Journal of Gastroenterology2014，20，40： | 5 |
| 5 | Worldwide trends in gastric cancer mortality (1980–2011), with predictions to 2015, and incidence by subtype显示文摘 | Ana Ferro Bárbara Peleteiro Matteo Malvezzi Cristina Bosetti Paola Bertuccio Fabio Levi Eva Negri Carlo La Vecchia Nuno Lunet | 2014 | European Journal of Cancer2014，，： | 3 |
| 6 | 一种房颤风险评分系统的建立(Framingham心脏研究):基于社区的队列研究显示文摘背景房颤导致了发病率和病死率的显著上升。本研究旨在建立一种预测个体罹患房颤绝对风险的风险评分系统,并提供研究人员评价新危险因素的流程。方法作者评估了Framingham心脏研究中于1968年6月至1987年9月间进行了8044次检测的4764例参与者(55%为女性,年龄45~95岁)。此后,参与者被随访至房颤首发,随访期最长达10年。多变量Coxi回归确认出1(1年内罹患房颤的临床危险因素。次级分析纳入了常规超声心动图检测指标(5152例4参与者,7156次检测)对房颤风险进行再分层评估,并评价超声检测指标能否提高风险预测能力。结果4764例参与者中的457例4(10%)罹患房颤。年龄、性别、体重指数、收缩压、降压治疗、PR间期、有临床意义的心脏杂音及心力衰竭与房颤相关,并被纳入了风险评分模型(除体重指数P=0.08外,其余均为P〈0.05),模型的C统计量为0.78(95%CI0.76~0.80)。10年房颤风险随年龄变化:年龄〈65岁的人群中53例(1%)风险高于15%,而〉65岁的人群中为783例(27%)。为提高预测能力而纳入超声检测指标仅使模型C统计量略微增高,由0.78(95%C10.75~0.80)增至0.79(95%CI0.77~0.82:P=0.005)。超声心动图检测指标并不能改善风险再分层评估(P=0.18)。结论基于社区医疗中易得的临床因素建立的风险评分系统,有助于确认社区个体罹患房颤的风险,评估技术或标志物能否改善风险预测,以及针对高危个体采取预防措施。 | Renate B Schnabel Lisa M Sullivan Daniel Levy Michael J Pencina Joseph M Massaro Ralph B D'Agostino Sr Christopher Newton-Cheh Jennifer F Yamamoto Jared W Magnani Thomas M Tadros William B Kannel Thomas J Wang Patrick T Ellinor Philip A Wolf Ramachanclran S Vasan Emelia J Benjamin 黄刚(译) | 2009 | 世界临床医学2009，，9： | 2 |
| 7 | Plasticity of Human Adipose Lineage Cells Toward Endothelial Cells: Physiological and Therapeutic Perspectives显示文摘 | Valérie Planat-Benard Jean-Sébastien Silvestre Béatrice Cousin Mireille André Maryse Nibbelink Radia Tamarat Michel Clergue Carole Manneville Corinne Saillan-Barreau Micheline Duriez Alain Tedgui Bernard Levy Luc Pénicaud Louis Casteilla | 2004 | Circulation: Journal of the American Heart Association2004，，5： | 2 |
| 8 | 口腔巨细胞性纤维瘤显示文摘为研究口腔巨细胞性纤维瘤的临床及病理特点,作者复查了美国马里兰大学牙科学院口腔病理系1985~1988年间临床活检标本,其中巨细胞性纤维瘤124例。本组分析中发现其高发年龄为31~40岁,女性居多。好发部位依次为牙龈、舌和颊部。本病缺乏特异性临床表现,常被误诊为刺激性纤维瘤、神经纤维瘤、乳头状瘤和化脓性肉芽肿等。主要病理特点是病变中可见体积较大的梭形或星形细胞及多核巨细胞,多位于粘膜上皮下。单纯外科切除为其有效的治疗方法。 | 王兆元 Levy,B | 1995 | 中华口腔医学杂志1995，30，6： | 2 |
| 9 | Biliary-colonic fistula caused by cholecystectomy bile duct injury显示文摘Biliary-colonic fistula is a rare complication after laparoscopic cholecystectomy. We present a case of post-cholecystectomy iatrogenic biliary injury that resulted in a fistula between the common hepatic duct and large bowel. Magnetic resonance cholangiopancreatography provided good visualization of injury even with concurrent normal level of alkaline phosphatase. Radiologic findings and surgical management of this condition are discussed in detail. | Francisco Igor B Macedo Victor J Casillas James S Davis Joe U Levi Danny Sleeman | 2013 | Hepatobiliary & Pancreatic Diseases International2013，12，4： | 2 |
| 10 | Bidirectional Relation Between Inflammation and Coagulation显示文摘 | Marcel Levi Tom van der Poll Harry R. Büller | 2004 | Circulation: Journal of the American Heart Association2004，，22： | 2 |
| 11 | Amplifiable resistance to tetracycline, chloramphenicol,and other antibiotics in Escherichia coli:involvement of a non-plasmid-deterrnined efflux of tetracycline 显示文摘 | George A M Levy S B | 1983 | J Bacteriol1983，155，2： | 1 |
| 12 | 显示文摘 | Levy B | 1990 | Circ Res1990，66，： | 1 |
| 13 | The Product and Brand显示文摘 | Burleigh B Gardner Sidney J Levy | 1955 | Harvard Business Review 3 - 41955，3339，： | 1 |
| 14 | Lactate and shock state:the metabolic view显示文摘 | Levy B | | 0，，4： | 1 |
| 15 | Randomized trial of suture versus electrosurgical bipolar vessel sealing in vaginal hysterectomy显示文摘 | Levy B Emery L | | 0，，01： | 1 |
| 16 | prognosticImplica-tions of baseline electrocardiographic features and their serial changes in subjects with left Ventricular hypertrophy显示文摘 | Levy d Salomon M D'gostino R B | | 0，，： | 1 |
| 17 | Blind Calibration of Timing Offsets for Four-Channel Time-Interleaved ADCs显示文摘 | Huang S Levy B C | | 0，，： | 1 |
| 18 | 查看详情显示文摘 | Di B A Gray L K Levy J K | | 0，，： | 1 |
| 19 | Genetic and functional analysis of the multiple antibiotic resistance (mar) loeus in Escherichia coli显示文摘 | Cohen S P Hachler H Levy S B | 1993 | J Baeteriol1993，175，5： | 1 |
| 20 | Intraarterial lidocaine for paincontrol after uterine artery embolization for leiomyomata显示文摘 | Levy E B Roth A R | 2001 | J Vasc IntervRadiol2001，12，9： | 1 |
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