Intestinal absorption of the octapeptide SMS 201-995 visualized by fluorescence derivatization.

abstract：BACKGROUND/AIMS:K-ras-2 mutations and DNA content heterogeneity represent early events of human colorectal tumor progression. The aim of the study was to investigate if specific K-ras-2 mutations in 58 human sporadic adenomas were correlated with DNA aneuploidization and cell proliferation. METHODS:Multiparameter flow...

journal_title：Gastroenterology

authors： Giaretti W,Pujic N,Rapallo A,Nigro S,Di Vinci A,Geido E,Risio M

更新日期：1995-04-01 00:00:00

abstract：BACKGROUND & AIMS:Ethanol impairs the mitochondrial transport of reduced glutathione (GSH), resulting in lower mitochondrial GSH (mGSH) levels. Our purpose was to evaluate the role of acetaldehyde on the regulation of mGSH in HepG2 cells. METHODS:mGSH levels and transport, mitochondrial membrane microviscosity, and li...

journal_title：Gastroenterology

authors： Lluis JM,Colell A,García-Ruiz C,Kaplowitz N,Fernández-Checa JC

更新日期：2003-03-01 00:00:00

abstract：BACKGROUND & AIMS:The metabolic and urease responses of Helicobacter pylori to variations in gastric acidity are unknown. The aim of this study was to determine effects of changes of environmental pH on metabolism, urease activity, and survival of H. pylori in an unbuffered environment. METHODS:Bacterial metabolism an...

journal_title：Gastroenterology

authors： Rektorschek M,Weeks D,Sachs G,Melchers K

更新日期：1998-09-01 00:00:00

abstract：:Antigliadin antibodies have been widely used in the screening of celiac disease. Using this test, candidates for jejunal biopsy were selected from 328 first-degree relatives of 128 adult celiac patients. All relatives geographically available were willing to participate in the study. Twenty-one turned out to be positi...

journal_title：Gastroenterology

authors： Corazza G,Valentini RA,Frisoni M,Volta U,Corrao G,Bianchi FB,Gasbarrini G

更新日期：1992-11-01 00:00:00

abstract：BACKGROUND & AIMS:Alterations in the gastrointestinal microbiota have been associated with metabolic diseases. However, little is known about host factors that induce changes in gastrointestinal bacterial populations. We investigated the role of bile acids in this process because of their strong antimicrobial activitie...

journal_title：Gastroenterology

authors： Islam KB,Fukiya S,Hagio M,Fujii N,Ishizuka S,Ooka T,Ogura Y,Hayashi T,Yokota A

更新日期：2011-11-01 00:00:00

abstract：BACKGROUND & AIMS:The complications of diverticulosis cause considerable morbidity in the United States; health care expenditures for this disorder are estimated to be $2.5 billion per year. Many physicians and patients believe that a high-fiber diet and frequent bowel movements prevent the development of diverticulosi...

journal_title：Gastroenterology

authors： Peery AF,Barrett PR,Park D,Rogers AJ,Galanko JA,Martin CF,Sandler RS

更新日期：2012-02-01 00:00:00

abstract：BACKGROUND & AIMS:Patients with chronic hepatitis C and persistently normal alanine aminotransferase (ALT) levels have been routinely excluded from large randomized treatment trials; consequently, the efficacy and safety of antiviral therapy in this population are unknown. METHODS:Patients with at least 3 normal ALT v...

journal_title：Gastroenterology

authors： Zeuzem S,Diago M,Gane E,Reddy KR,Pockros P,Prati D,Shiffman M,Farci P,Gitlin N,O'Brien CB,Lamour F,Lardelli P,PEGASYS Study NR16071 Investigator Group.

更新日期：2004-12-01 00:00:00

abstract：BACKGROUND:Patients with celiac disease have immunoglobulin (Ig) M antibodies and IgA antigliadin antibody in gut secretions; this pattern of intestinal immunity may be a marker of latent celiac disease. Its frequency in patients referred for jejunal biopsy has been examined. METHODS:Serum IgG and IgA antigliadin anti...

journal_title：Gastroenterology

authors： Arranz E,Ferguson A

更新日期：1993-05-01 00:00:00

abstract：:Ceftriaxone, a semisynthetic third-generation cephalosporin, has recently been associated with biliary sludge formation. Analysis of the biliary concretions induced by this agent shows a calcium salt of ceftriaxone. The present in vitro studies were undertaken to provide insight into the pathogenesis of ceftriaxone-as...

journal_title：Gastroenterology

authors： Shiffman ML,Keith FB,Moore EW

更新日期：1990-12-01 00:00:00

abstract：BACKGROUND & AIMS:Cancer progression/metastases and embryonic development share many properties including cellular plasticity, dynamic cell motility, and integral interaction with the microenvironment. We hypothesized that the heterogeneous nature of hepatocellular carcinoma (HCC), in part, may be owing to the presence...

journal_title：Gastroenterology

authors： Yamashita T,Ji J,Budhu A,Forgues M,Yang W,Wang HY,Jia H,Ye Q,Qin LX,Wauthier E,Reid LM,Minato H,Honda M,Kaneko S,Tang ZY,Wang XW

更新日期：2009-03-01 00:00:00

abstract：:To characterize gastric mucosal perfusion in cirrhotic patients with portal hypertensive gastropathy, 34 cirrhotics with this lesion and 24 noncirrhotics were studied by reflectance spectrophotometry and laser-Doppler flowmetry during endoscopy. A significant correlation was observed between the hemoglobin content of ...

journal_title：Gastroenterology

authors： Panés J,Bordas JM,Piqué JM,Bosch J,García-Pagán JC,Feu F,Casadevall M,Terés J,Rodés J

更新日期：1992-12-01 00:00:00

abstract：BACKGROUND & AIMS:In several rat infection experiments, we have shown that dietary calcium inhibits intestinal colonization and translocation of invasive salmonella. The aim of the present study was to find out whether calcium is also protective against enterotoxigenic Escherichia coli (ETEC) infection. This was first ...

journal_title：Gastroenterology

authors： Bovee-Oudenhoven IM,Lettink-Wissink ML,Van Doesburg W,Witteman BJ,Van Der Meer R

更新日期：2003-08-01 00:00:00

abstract：:Obese subjects are prone to supersaturated bile, which is maintained or increased during weight loss. In this report, two related studies were carried out on obese subjects to investigate effects of bile acid feeding on biliary lipid metabolism before and during weight reduction. In one study, chenodeoxycholic acid (...

journal_title：Gastroenterology

authors： Mok HY,von Bergmann K,Crouse JR,Grundy SM

更新日期：1979-03-01 00:00:00

abstract：BACKGROUND & AIMS:Refractory gastroesophageal reflux disease (GERD) reduces quality of life and creates significant financial burden on the health care system. Approximately 30% of patients with GERD who receive label-dose proton pump inhibitors (PPIs) still have symptoms. We performed a trial to evaluate the efficacy ...

journal_title：Gastroenterology

authors： Vaezi MF,Fass R,Vakil N,Reasner DS,Mittleman RS,Hall M,Shao JZ,Chen Y,Lane L,Gates AM,Currie MG

更新日期：2020-06-01 00:00:00

abstract：BACKGROUND & AIMS:Type 2 diabetes mellitus (DM) is associated with an increased risk of colorectal cancer (CRC); it is not clear if this association varies by sex or other factors. Insulin use might also be associated with CRC risk. We investigated associations of type 2 DM and insulin use with CRC risk. METHODS:The C...

journal_title：Gastroenterology

authors： Campbell PT,Deka A,Jacobs EJ,Newton CC,Hildebrand JS,McCullough ML,Limburg PJ,Gapstur SM

更新日期：2010-10-01 00:00:00

abstract：BACKGROUND & AIMS:Patients with Barrett's esophagus (BE) show increased risk of developing esophageal adenocarcinoma and are routinely examined using upper endoscopy with biopsy to detect neoplastic changes. Angle-resolved low coherence interferometry (a/LCI) uses in vivo depth-resolved nuclear morphology measurements ...

journal_title：Gastroenterology

authors： Terry NG,Zhu Y,Rinehart MT,Brown WJ,Gebhart SC,Bright S,Carretta E,Ziefle CG,Panjehpour M,Galanko J,Madanick RD,Dellon ES,Trembath D,Bennett A,Goldblum JR,Overholt BF,Woosley JT,Shaheen NJ,Wax A

更新日期：2011-01-01 00:00:00

abstract：:Fifteen (2.2%) of 693 patients with cystic fibrosis seen over an 18-year period developed clinical hepatic disease. In 13 patients all symptoms were secondary to portal hypertension. Ten had hypersplenism and 6 had variceal bleeding, including 3 who developed both conditions. All 5 patients who survived the initial ep...

journal_title：Gastroenterology

authors： Stern RC,Stevens DP,Boat TF,Doershuk CF,Izant RJ Jr,Matthews LW

更新日期：1976-05-01 00:00:00

abstract：:Propulsion of colonic contents after eating in the whole colon was studied in 15 volunteers by scintigraphy with injection of 111In-diethylenetriamine-pentaacetic acid and 99mTc-sulfur colloid into the colon through a nasogastric tube. The radionuclide was injected into the cecoascending colon (n = 7), the hepatic fle...

journal_title：Gastroenterology

authors： Picon L,Lémann M,Flourié B,Rambaud JC,Rain JD,Jian R

更新日期：1992-07-01 00:00:00

abstract：BACKGROUND & AIMS:Few data are available concerning the long-term prognosis of chronic liver disease associated with hepatitis C virus infection. This study examined the morbidity and survival of patients with compensated cirrhosis type C. METHODS:A cohort of 384 European cirrhotic patients was enrolled at seven terti...

journal_title：Gastroenterology

authors： Fattovich G,Giustina G,Degos F,Tremolada F,Diodati G,Almasio P,Nevens F,Solinas A,Mura D,Brouwer JT,Thomas H,Njapoum C,Casarin C,Bonetti P,Fuschi P,Basho J,Tocco A,Bhalla A,Galassini R,Noventa F,Schalm SW,Realdi

更新日期：1997-02-01 00:00:00

abstract：BACKGROUND & AIMS:Indomethacin impairs liver microsomal monooxygenase activities mediated by cytochrome P450 (CYP). We investigated the inhibition mechanism and the isoform selectivity in vitro and in vivo. METHODS:In an in vitro study, liver microsomes from male Wistar rats were preincubated with indomethacin and a r...

journal_title：Gastroenterology

authors： Masubuchi Y,Masuda E,Horie T

更新日期：2002-03-01 00:00:00

abstract：:The histological and immunohistochemical characteristics of the liver in 44 children (28 boys, 16 girls) with extrahepatic biliary atresia at different stages of the clinical course were studied. Thirty-four wedge liver biopsy specimens taken during Kasai operations (25 specimens) and relaparotomy (9 specimens) and 20...

journal_title：Gastroenterology

authors： Nietgen GW,Vacanti JP,Perez-Atayde AR

更新日期：1992-06-01 00:00:00

abstract：:The experimental production of gastric ulcers in dogs by subnucosal injection of ulcerogeic agents is described. The most satisfactory agent tested was 95% ethanol, because it produced immediate changes in the mucosa which delineated the size of the ulcer. The depth of ulceration could be controlled and the ulcer heal...

journal_title：Gastroenterology

authors： Otani T,Tatsuka T,Kanamaru K,Okuda S

更新日期：1975-07-01 00:00:00

abstract：BACKGROUND & AIMS:Osteoporosis is common in patients with Crohn's disease, but less is known about their risk of actual fractures. METHODS:The medical records of all 238 Olmsted County, Minnesota, residents diagnosed with Crohn's disease between 1940 and 1993 were reviewed for evidence of subsequent fractures compared...

journal_title：Gastroenterology

authors： Loftus EV Jr,Crowson CS,Sandborn WJ,Tremaine WJ,O'Fallon WM,Melton LJ 3rd

更新日期：2002-08-01 00:00:00

abstract：BACKGROUND & AIMS:Crohn's disease has a bimodal age distribution of disease onset diagnosis. The peaks (20 and 50 years) may represent different phenotypes or different genetic and/or environmental influences between younger- and older-onset individuals. The aim of this study was to examine the influences of age at dia...

journal_title：Gastroenterology

authors： Polito JM 2nd,Childs B,Mellits ED,Tokayer AZ,Harris ML,Bayless TM

更新日期：1996-09-01 00:00:00

abstract：:Helicobacter pylori infects the stomach of half of the human population worldwide and causes chronic active gastritis, which can lead to peptic ulcer disease, gastric adenocarcinoma, and mucosa-associated lymphoid tissue lymphoma. The host immune response to the infection is ineffective, because the bacterium persists...

journal_title：Gastroenterology

authors： Wilson KT,Crabtree JE

更新日期：2007-07-01 00:00:00

abstract：BACKGROUND & AIMS:The morphology of acid damage to esophageal epithelium is characterized by marked cell (swelling) edema. This observation suggests that, in the process of acid damage, an increase in osmotic forces develops within the cell that accounts for the increase in cell water. The aim of this study was to docu...

journal_title：Gastroenterology

authors： Tobey NA,Cragoe EJ Jr,Orlando RC

更新日期：1995-08-01 00:00:00

abstract：:Much of what is currently accepted on the natural history of Helicobacter pylori-induced gastritis and its relationship with gastric adenocarcinoma rests on the assumption that atrophic gastritis can be correctly identified and reproducibly recognized. Recently, several studies have indicated that pathologists have a ...

journal_title：Gastroenterology

authors： Genta RM

更新日期：1997-12-01 00:00:00

abstract：BACKGROUND & AIMS:Little is known about substitutions that mediate resistance of hepatitis C virus (HCV) to direct-acting antivirals (DAAs), due to the small number of patients with treatment failure in approval studies. It is important to identify resistance patterns to select effective salvage treatments. METHODS:We...

journal_title：Gastroenterology

authors： Dietz J,Susser S,Vermehren J,Peiffer KH,Grammatikos G,Berger A,Ferenci P,Buti M,Müllhaupt B,Hunyady B,Hinrichsen H,Mauss S,Petersen J,Buggisch P,Felten G,Hüppe D,Knecht G,Lutz T,Schott E,Berg C,Spengler U,von Ha

更新日期：2018-03-01 00:00:00

abstract：BACKGROUND & AIMS:Studies of hepatitis C virus (HCV) infection, immunopathogenesis, and resulting liver diseases have been hampered by the lack of a small animal model. We developed humanized mice with human immune system and liver tissues to improve the studies of hepatitis C virus pathogenesis and treatment. METHODS...

journal_title：Gastroenterology

authors： Washburn ML,Bility MT,Zhang L,Kovalev GI,Buntzman A,Frelinger JA,Barry W,Ploss A,Rice CM,Su L

更新日期：2011-04-01 00:00:00

abstract：BACKGROUND & AIMS:Helicobacter pylori infection is mainly acquired in early childhood, but the exact routes of transmission remain elusive. To distinguish between risks of intrafamilial and extraneous child-to-child transmission, we studied H. pylori seroprevalence among Swedish school children with varying family back...

journal_title：Gastroenterology

authors： Tindberg Y,Bengtsson C,Granath F,Blennow M,Nyrén O,Granström M

更新日期：2001-08-01 00:00:00