Elevated cyclooxygenase-2 levels in Min mouse adenomas.

Abstract:

BACKGROUND & AIMS:Mutations in the APC gene result in an increased propensity to develop intestinal neoplasia; however, a complete understanding of the mechanisms resulting in tumor formation has remained elusive. Min mice possess a mutation in the APC gene and display a neoplastic phenotype similar to that observed in familial adenomatous polyposis coli in humans. Cyclooxygenase (COX) inhibitors decrease tumor multiplicity in the Min mouse intestine. The present study was designed to determine if there was an increase in COX-2 in adenomas harvested from Min mouse intestine. METHODS:COX-2 messenger RNA levels were determined by Northern blots and reverse-transcription polymerase chain reactions of B6Min x 129 mouse-derived tumors. Protein levels and localization were determined by Western blots and immunohistochemical staining. RESULTS:The Northern blots revealed an approximately threefold increase in the level of COX-2 messenger RNA in Min mouse adenoma compared with normal mucosa. COX-2 protein levels in adenomatous tissues were also approximately threefold higher compared with normal mucosa from the same mouse. Immunohistochemical staining with a monospecific COX-2 antibody confirmed that increases in COX-2 immunoreactivity were restricted to dysplastic and neoplastic foci within intestinal mucosa. CONCLUSIONS:These data show that COX-2 levels may be increased at an early stage in colorectal neoplasia during polyp formation and before invasion.

journal_name

Gastroenterology

journal_title

Gastroenterology

authors

Williams CS,Luongo C,Radhika A,Zhang T,Lamps LW,Nanney LB,Beauchamp RD,DuBois RN

doi

10.1016/s0016-5085(96)70083-5

subject

Has Abstract

pub_date

1996-10-01 00:00:00

pages

1134-40

issue

4

eissn

0016-5085

issn

1528-0012

pii

S0016-5085(96)70083-5

journal_volume

111

pub_type

杂志文章
  • Metabolism, pharmacokinetics, and activity of a new 6-fluoro analogue of ursodeoxycholic acid in rats and hamsters.

    abstract:BACKGROUND/AIMS:The effectiveness of ursodeoxycholic acid in treating biliary liver diseases is limited by low bioavailability and moderate activity. A new analogue of ursodeoxycholic acid was synthesized with a fluorine atom in position 6 because this should have resulted in an analogue more hydrophilic than ursodeoxy...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1016/0016-5085(95)90221-x

    authors: Roda A,Pellicciari R,Polimeni C,Cerrè C,Forti GC,Sadeghpour B,Sapigni E,Gioacchini AM,Natalini B

    更新日期:1995-04-01 00:00:00

  • Ontogenesis of the intestinal transport of biotin in the rat.

    abstract::Developmental aspects of the intestinal transport of biotin were examined in suckling (16 day old) and weanling (24 day old) rats using the everted sac technique. The results were compared with those of adult rats previously reported by us using the same intestinal preparation. Transport of biotin was linear for 20 mi...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1016/0016-5085(88)90611-7

    authors: Said HM,Redah R

    更新日期:1988-01-01 00:00:00

  • Impaired clearance of virus-infected hepatocytes in transgenic mice expressing the hepatitis C virus polyprotein.

    abstract:BACKGROUND & AIMS:Multiple molecular mechanisms are likely to contribute to the establishment of persistent infection by hepatitis C virus (HCV). The aim of this work was to study the evasion of cell-mediated antiviral immune responses in transgenic mice with liver-targeted expression of the hepatitis C viral genome. T...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1053/j.gastro.2003.12.005

    authors: Disson O,Haouzi D,Desagher S,Loesch K,Hahne M,Kremer EJ,Jacquet C,Lemon SM,Hibner U,Lerat H

    更新日期:2004-03-01 00:00:00

  • Combined functional and positional gene information for the identification of susceptibility variants in celiac disease.

    abstract:BACKGROUND & AIMS:Celiac disease is a complex, immune-mediated disorder of the intestinal mucosa with a strong genetic component. HLA-DQ2 is the major determinant of risk, but other minor genes, still to be identified, also are involved. METHODS:We designed a strategy that combines gene expression profiling of intesti...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1053/j.gastro.2007.11.041

    authors: Castellanos-Rubio A,Martin-Pagola A,Santín I,Hualde I,Aransay AM,Castaño L,Vitoria JC,Bilbao JR

    更新日期:2008-03-01 00:00:00

  • Accumulation and cellular localization of fibrinogen/fibrin during short-term and long-term rat liver injury.

    abstract:BACKGROUND/AIMS:During liver fibrosis, there is a putative pacemaker role of fibronectin. Fibrinogen is closely linked to fibronectin during clotting processes. The aim of this study was to show fibrinogen gene expression during liver damage. METHODS:Fibrinogen/fibrin deposition in damaged livers was studied by immuno...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1016/0016-5085(95)90211-2

    authors: Neubauer K,Knittel T,Armbrust T,Ramadori G

    更新日期:1995-04-01 00:00:00

  • Calcitonin-producing pancreatic somatostatinoma.

    abstract::A pancreatic somatostatinoma metastatized to the liver was detected in a 70-yr-old woman presenting with chronic diarrhea, steatorrhea, pancreatic insufficiency, diabetes mellitus, and achlorhydria. At immunocytochemistry, most tumor cells stored both somatostatin and calcitoninlike substances. Chromatography of acid ...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:

    authors: Galmiche JP,Chayvialle JA,Dubois PM,David L,Descos F,Paulin C,Ducastelle T,Colin R,Geffroy Y

    更新日期:1980-06-01 00:00:00

  • Metroticket 2.0 Model for Analysis of Competing Risks of Death After Liver Transplantation for Hepatocellular Carcinoma.

    abstract:BACKGROUND & AIMS:Outcomes of liver transplantation for hepatocellular carcinoma (HCC) are determined by cancer-related and non-related events. Treatments for hepatitis C virus infection have reduced non-cancer events among patients receiving liver transplants, so reducing HCC-related death might be an actionable end p...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1053/j.gastro.2017.09.025

    authors: Mazzaferro V,Sposito C,Zhou J,Pinna AD,De Carlis L,Fan J,Cescon M,Di Sandro S,Yi-Feng H,Lauterio A,Bongini M,Cucchetti A

    更新日期:2018-01-01 00:00:00

  • Epigenetic and genetic alterations in duodenal carcinomas are distinct from biliary and ampullary carcinomas.

    abstract:BACKGROUND & AIMS:Carcinomas of the extrahepatic bile ducts, ampulla of Vater, and duodenum are uncommon, and their epigenetic and genetic alterations are not well characterized. METHODS:We therefore compared the methylation profile and genetic alterations in 18 extrahepatic biliary, 9 ampullary, and 12 duodenal carci...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1016/s0016-5085(03)00278-6

    authors: Kim SG,Chan AO,Wu TT,Issa JP,Hamilton SR,Rashid A

    更新日期:2003-05-01 00:00:00

  • DDIT4 Licenses Only Healthy Cells to Proliferate During Injury-induced Metaplasia.

    abstract:BACKGROUND AND AIMS:In stomach, metaplasia can arise from differentiated chief cells that become mitotic via paligenosis, a stepwise program. In paligenosis, mitosis initiation requires reactivation of the cellular energy hub mTORC1 after initial mTORC1 suppression by DNA damage induced transcript 4 (DDIT4 aka REDD1). ...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1053/j.gastro.2020.09.016

    authors: Miao ZF,Sun JX,Adkins-Threats M,Pang MJ,Zhao JH,Wang X,Tang KW,Wang ZN,Mills JC

    更新日期:2021-01-01 00:00:00

  • Inhibition of leukotriene synthesis markedly accelerates healing in a rat model of inflammatory bowel disease.

    abstract::The role of leukotrienes in the pathogenesis of chronic colitis was investigated using a rat model. Ulceration and inflammation of the distal colon was initiated by the intracolonic administration of the hapten trinitrobenzene sulfonic acid in 50% ethanol. Leukotriene B4 synthesis increased significantly within 4 h af...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1016/0016-5085(89)90760-9

    authors: Wallace JL,MacNaughton WK,Morris GP,Beck PL

    更新日期:1989-01-01 00:00:00

  • Transjugular intrahepatic portosystemic shunt as a treatment for protein-losing enteropathy caused by portal hypertension.

    abstract::A case of a 41-year-old man with diarrhea, hypoalbuminemia, and cryptogenic cirrhosis with features of portal hypertension is described. Protein-losing enteropathy was confirmed by analysis of whole-gut lavage fluid, and intestinal inflammation and infection were excluded. Distal duodenal biopsy specimens showed evide...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1016/s0016-5085(96)70033-1

    authors: Stanley AJ,Gilmour HM,Ghosh S,Ferguson A,McGilchrist AJ

    更新日期:1996-12-01 00:00:00

  • Morphologic and physiologic studies of canine ileal enteroglucagon-containing cells in short-term culture.

    abstract::Enteroglucagon-containing cells have been maintained in short-term culture, and the morphologic characteristics of these cells and their response to selected agents have been determined. After 48 h in culture the ultrastructural appearance of the enteroglucagon-immunoreactive cells showed evidence of polarization with...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1016/0016-5085(87)90442-2

    authors: Buchan AM,Barber DL,Gregor M,Soll AH

    更新日期:1987-10-01 00:00:00

  • Human intestinal mononuclear cells. II. Demonstration of a naturally occurring subclass of T cells which respond in the allogeneic mixed leukocyte reaction but do not effect cell-mediated lympholysis.

    abstract::We have examined the T-cell functional capabilities of human intestinal mononuclear cells isolated from surgically obtained normal and inflammatory bowel disease intestinal specimens. Intestinal mononuclear cells have T cells present which respond to the mitogenic lectins E-PHA, Con A, and PWM and to foreign cell-surf...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:

    authors: MacDermott RP,Bragdon MJ,Jenkins KM,Franklin GO,Shedlofsky S,Kodner IJ

    更新日期:1981-04-01 00:00:00

  • Immune response against frameshift-induced neopeptides in HNPCC patients and healthy HNPCC mutation carriers.

    abstract:BACKGROUND & AIMS:Colorectal cancers (CRC) associated with the hereditary nonpolyposis colorectal cancer (HNPCC) syndrome display high-level microsatellite instability (MSI-H) as a consequence of mismatch repair deficiency. HNPCC-associated CRC frequently show features of a pronounced immune response, most likely resul...

    journal_title:Gastroenterology

    pub_type: 杂志文章,多中心研究

    doi:10.1053/j.gastro.2008.01.015

    authors: Schwitalle Y,Kloor M,Eiermann S,Linnebacher M,Kienle P,Knaebel HP,Tariverdian M,Benner A,von Knebel Doeberitz M

    更新日期:2008-04-01 00:00:00

  • Deletion of IκBα activates RelA to reduce acute pancreatitis in mice through up-regulation of Spi2A.

    abstract:BACKGROUND & AIMS:The transcription factor nuclear factor-κB (NF-κB) (a heterodimer of NF-κB1p50 and RelA) is activated rapidly in acute pancreatitis (AP). However, it is not clear whether NF-κB promotes or protects against AP. We used the NF-κB inhibitor protein, inhibitor of κB (IκB)α, to study the roles of NF-κB in ...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1053/j.gastro.2012.09.058

    authors: Neuhöfer P,Liang S,Einwächter H,Schwerdtfeger C,Wartmann T,Treiber M,Zhang H,Schulz HU,Dlubatz K,Lesina M,Diakopoulos KN,Wörmann S,Halangk W,Witt H,Schmid RM,Algül H

    更新日期:2013-01-01 00:00:00

  • Successful endoscopic transection of a partially obstructing antral diaphragm.

    abstract::A 14-yr-old girl presented with long-standing symptoms of partial gastric outlet obstruction due to an antral mucosal diaphragm that had a central aperture of 4-5 mm. The literature of this congenital malformation is reviewed with respect to diagnostic criteria and feasibility of endoscopic transection. The procedure ...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1016/0016-5085(85)90222-7

    authors: Berr F,Rienmueller R,Sauerbruch T

    更新日期:1985-11-01 00:00:00

  • High Prevalence of Nonalcoholic Fatty Liver Disease in Adolescents Undergoing Bariatric Surgery.

    abstract:BACKGROUND & AIMS:Little is known about the prevalence of nonalcoholic fatty liver disease (NAFLD) among severely obese adolescents or factors that determine its development. We investigated the prevalence of NAFLD in a multicenter cohort of adolescents undergoing bariatric surgery and the factors associated with it. ...

    journal_title:Gastroenterology

    pub_type: 杂志文章,多中心研究

    doi:10.1053/j.gastro.2015.05.039

    authors: Xanthakos SA,Jenkins TM,Kleiner DE,Boyce TW,Mourya R,Karns R,Brandt ML,Harmon CM,Helmrath MA,Michalsky MP,Courcoulas AP,Zeller MH,Inge TH,Teen-LABS Consortium.

    更新日期:2015-09-01 00:00:00

  • Morphological and functional effects of bile salts on rat colon.

    abstract::By correlating morphological observations with quantitative measurements of net water transport, we determined whether bile salts altered colonic absorptive cells. Epithelial alteration was equivocal and water absorption was uninhibited during infusions of 1 mM deoxycholate or of concentrations of taurocholate less th...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:

    authors: Saunders DR,Hedges JR,Sillery J,Esther L,Matsumura K,Rubin CE

    更新日期:1975-05-01 00:00:00

  • Definition of the initial immunologic modifications upon in vitro gliadin challenge in the small intestine of celiac patients.

    abstract:BACKGROUND & AIMS:Mucosal cell-mediated immune response is considered the central event in the pathogenesis of celiac disease. In cultured intestinal explants from celiacs in remission, we have characterized the early stages of gliadin-induced immune activation. METHODS:Intestinal biopsy specimens (15 treated celiacs ...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1053/gast.1996.v110.pm8613040

    authors: Maiuri L,Picarelli A,Boirivant M,Coletta S,Mazzilli MC,De Vincenzi M,Londei M,Auricchio S

    更新日期:1996-05-01 00:00:00

  • Inflammation and disruption of the mucosal architecture in claudin-7-deficient mice.

    abstract:BACKGROUND & AIMS:Integrity of the intestinal epithelium is required for nutrition absorption and defense against pathogens. Claudins are cell adhesion molecules that localize at tight junctions (TJs); many are expressed in the intestinal tract, but little is known about their functions. Claudin-7 is unique in that it ...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1053/j.gastro.2011.10.025

    authors: Ding L,Lu Z,Foreman O,Tatum R,Lu Q,Renegar R,Cao J,Chen YH

    更新日期:2012-02-01 00:00:00

  • Autophagy suppresses age-dependent ischemia and reperfusion injury in livers of mice.

    abstract:BACKGROUND & AIMS:As life expectancy increases, there are greater numbers of patients with liver diseases who require surgery or transplantation. Livers of older patients have significantly less reparative capacity following ischemia and reperfusion (I/R) injury, which occurs during these operations. There are no strat...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1053/j.gastro.2011.08.005

    authors: Wang JH,Ahn IS,Fischer TD,Byeon JI,Dunn WA Jr,Behrns KE,Leeuwenburgh C,Kim JS

    更新日期:2011-12-01 00:00:00

  • Inflammatory bowel disease and the risk of fracture.

    abstract:BACKGROUND & AIMS:Although patients with inflammatory bowel disease (IBD) have reduced bone mass, there is controversy whether there is an increased risk of fracture. This study examines the risk of fracture and its predictors in patients with IBD. METHODS:In a primary care- based nested case-control study, 231,778 fr...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1053/j.gastro.2003.09.027

    authors: van Staa TP,Cooper C,Brusse LS,Leufkens H,Javaid MK,Arden NK

    更新日期:2003-12-01 00:00:00

  • Duodenal expression of a putative stimulator of Fe transport and transferrin receptor in anemia and hemochromatosis.

    abstract:BACKGROUND & AIMS:Stimulator of Fe Transport (SFT) and transferrin receptor (TfR) are proteins involved in iron transport. This study evaluated iron metabolism protein expression in duodenal biopsy specimens from controls and patients with abnormal iron metabolism. METHODS:Twelve controls, 8 patients with iron deficie...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1053/gast.2001.23946

    authors: Barisani D,Parafioriti A,Armiraglio E,Meneveri R,Conte D

    更新日期:2001-05-01 00:00:00

  • Ca2+ responses in enteric glia are mediated by connexin-43 hemichannels and modulate colonic transit in mice.

    abstract:BACKGROUND & AIMS:In the enteric nervous system, neurotransmitters initiate changes in calcium (Ca(2+) responses) in glia, but it is not clear how this process affects intestinal function. We investigated whether Ca(2+)-mediated responses in enteric glia are required to maintain gastrointestinal function. METHODS:We u...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1053/j.gastro.2013.10.061

    authors: McClain J,Grubišić V,Fried D,Gomez-Suarez RA,Leinninger GM,Sévigny J,Parpura V,Gulbransen BD

    更新日期:2014-02-01 00:00:00

  • Effect of six weeks of treatment with cisapride in gastroparesis and intestinal pseudoobstruction.

    abstract::We have investigated the effect of oral cisapride (10 mg t.i.d.) in a double-blind, placebo-controlled trial in 26 patients with upper gut dysmotility: 11 with gastroparesis (8 diabetic, 3 idiopathic) and 15 with chronic idiopathic intestinal pseudoobstruction. Patients were evaluated at entry and at the end of the 6-...

    journal_title:Gastroenterology

    pub_type: 临床试验,杂志文章,随机对照试验

    doi:

    authors: Camilleri M,Malagelada JR,Abell TL,Brown ML,Hench V,Zinsmeister AR

    更新日期:1989-03-01 00:00:00

  • Methemoglobinemia as a complication of 20% benzocaine spray for endoscopy.

    abstract::Topical 20% benzocaine (Hurricaine, Beutlich, Inc., Niles, Ill.) spray is frequently used for oral anesthesia before upper endoscopy. Side effects attributed to this agent are exceedingly rare. The author reports one of these rare complications, drug-induced methemoglobinemia, in a patient with methemoglobin reductase...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1016/0016-5085(90)91312-t

    authors: Collins JF

    更新日期:1990-01-01 00:00:00

  • Heterotopic liver transplantation for fulminant Wilson's disease.

    abstract::Wilson's disease may present with severe acute hepatocellular failure. The only effective treatment for fulminant Wilson's disease is liver transplantation, which may lead to reversal of the underlying disease. Some patients with cirrhosis who are too ill to undergo orthotopic liver transplantation have been treated w...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1016/0016-5085(90)90497-o

    authors: Stampfl DA,Muñoz SJ,Moritz MJ,Rubin R,Armenti VT,Jarrell BE,Maddrey WC

    更新日期:1990-12-01 00:00:00

  • Seasonal variation in flares of inflammatory bowel disease.

    abstract:BACKGROUND & AIMS:Previous research has yielded conflicting data as to whether the natural history of inflammatory bowel disease follows a seasonal pattern. The purpose of this study was to determine whether relapse of inflammatory bowel disease follows a seasonal pattern either across a cohort of patients or within in...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1053/j.gastro.2003.12.003

    authors: Lewis JD,Aberra FN,Lichtenstein GR,Bilker WB,Brensinger C,Strom BL

    更新日期:2004-03-01 00:00:00

  • Detection of Crohn's disease by ultrasound.

    abstract::The target appearance of grey scale ultrasound is thought to be a characteristic sign of gastrointestinal wall thickening. It consists of a strong echogenic center surrounded by a sonolucent rim. In a prospective controlled study, the sensitivity and specificity of the ultrasonic B-scan for Crohn's disease were invest...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:

    authors: Sonnenberg A,Erckenbrecht J,Peter P,Niederau C

    更新日期:1982-08-01 00:00:00

  • Translocation of epidermal growth factor to the hepatocyte nucleus during rat liver regeneration.

    abstract::To determine the fate of exogenous epidermal growth factor (EGF) in regenerating liver, 125I-labeled EGF was injected into rat portal veins at various times after 70% hepatectomy. Epidermal growth factor was taken up by the liver remnant at all time points studied (0, 4, 8, 16, and 36 h), but at 8 h after hepatectomy ...

    journal_title:Gastroenterology

    pub_type: 杂志文章

    doi:10.1016/s0016-5085(87)91084-5

    authors: Raper SE,Burwen SJ,Barker ME,Jones AL

    更新日期:1987-05-01 00:00:00