Mechanism and site of small intestinal absorption of alpha-tocopherol in the rat.

abstract：BACKGROUND/AIMS:Human colonic epithelium produces large amounts of mucin. The aim of this study was to examine mucin biosynthesis in the human colon. METHODS:Human colonic mucin was isolated using CsCl density gradients, and polyclonal antiserum was raised. Biosynthesis of colonic mucins was studied by labeling coloni...

journal_title：Gastroenterology

authors： Tytgat KM,Büller HA,Opdam FJ,Kim YS,Einerhand AW,Dekker J

更新日期：1994-11-01 00:00:00

abstract：BACKGROUND & AIMS:Steatosis in patients with nonalcoholic fatty liver disease (NAFLD) is due to an imbalance between intrahepatic triglyceride (IHTG) production and export. The purpose of this study was to evaluate TG metabolism in adipose tissue and liver in NAFLD. METHODS:Fatty acid, VLDL-TG, and VLDL-apolipoprotein...

journal_title：Gastroenterology

authors： Fabbrini E,Mohammed BS,Magkos F,Korenblat KM,Patterson BW,Klein S

更新日期：2008-02-01 00:00:00

abstract：:Monocytopoietic proliferation activity was determined in 8 patients during severe attacks of Crohn's disease and in 6 patients with ulcerative colitis. Similar results were obtained in both groups of patients. A moderate but significant hyperproliferation of monocytopoiesis was found to be present in about half of the...

journal_title：Gastroenterology

authors： Meuret G,Bitzi A,Hammer B

更新日期：1978-03-01 00:00:00

abstract：BACKGROUND & AIMS:The goal of the study was to facilitate fat balance measurements with an appropriate intestinal marker for the transit of dietary fat and thereby eliminate the need for complete diet and fecal collections. METHODS:Dietary fat containing 5% sucrose polybehenate was fed in a semisynthetic diet to rats ...

journal_title：Gastroenterology

authors： Jandacek RJ,Heubi JE,Tso P

更新日期：2004-07-01 00:00:00

abstract：:The purpose of this American Gastroenterological Association (AGA) Institute Clinical Practice Update was to rapidly review the emerging evidence and provide timely expert recommendations regarding the management of patients with inflammatory bowel disease during the coronavirus disease 2019 pandemic. This expert comm...

journal_title：Gastroenterology

authors： Rubin DT,Feuerstein JD,Wang AY,Cohen RD

更新日期：2020-07-01 00:00:00

abstract：:Patients with chronic nausea and vomiting frequently present challenging diagnostic and therapeutic problems. In such patients, gastroparesis of unknown cause, or "idiopathic" gastroparesis, may be the only objective finding. Two middle-aged women with nausea, vomiting, and weight loss of 10 and 26 kg over 6 and 18 mo...

journal_title：Gastroenterology

authors： Liberski SM,Koch KL,Atnip RG,Stern RM

更新日期：1990-07-01 00:00:00

abstract：BACKGROUND & AIMS:Prostaglandin-endoperoxide synthase (Ptgs)2 is an enzyme involved in prostaglandin production during the response to mucosal damage. Its expression is regulated, in part, by messenger RNA (mRNA)-binding proteins that control the stability of Ptgs2 mRNA. We used a precise system of colonic injury and r...

journal_title：Gastroenterology

authors： Manieri NA,Drylewicz MR,Miyoshi H,Stappenbeck TS

更新日期：2012-07-01 00:00:00

abstract：BACKGROUND:Calretinin and calbindin-D28k are similar Ca(2+)-binding proteins previously described in specific central neurons and other cells. METHODS:The immunocytochemical distribution of these two proteins was studied in the human gastrointestinal tract. RESULTS:In gastric and small intestinal endocrine cells, cal...

journal_title：Gastroenterology

authors： Walters JR,Bishop AE,Facer P,Lawson EM,Rogers JH,Polak JM

更新日期：1993-05-01 00:00:00

abstract：:The mechanism of action of Senokot, a widely used laxative, has not been established. Senokot was given orally to rats 8-14 h before intestinal water and electrolyte transport were studied. Senokot significantly decreased colonic and jejunal water absorption measured in vivo by the single-pass perfusion technique. The...

journal_title：Gastroenterology

authors： Donowitz M,Wicks J,Battisti L,Pike G,DeLellis R

更新日期：1984-09-01 00:00:00

abstract：:Polyethylene glycol (PEG) is commonly used as a nonabsorbable volume marker in intestinal perfusion and flow studies. It has been assumed that PEG does not affect water and electrolyte movement, but this has not been extensively investigated. Using triple-lumen tube perfusion technique, we examined the effect of vario...

journal_title：Gastroenterology

authors： Davis GR,Santa Ana CA,Morawski SG,Fordtran JS

更新日期：1980-07-01 00:00:00

abstract：BACKGROUND & AIMS:Activated recombinant factor VII (rFVIIa) has been shown to be effective in correcting prolonged prothrombin time (PT) in cirrhotic patients. The main objective of this study was to evaluate the effect of 4 (5, 20, 80, and 120 microg/kg) doses of rFVIIa on correction of PT and the time to achieve hemo...

journal_title：Gastroenterology

authors： Jeffers L,Chalasani N,Balart L,Pyrsopoulos N,Erhardtsen E

更新日期：2002-07-01 00:00:00

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

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

abstract：:Electromyogram of the submental muscles, esophageal manometry, and pH studies were simultaneously performed in an unselected group of 12 patients with subjective and objective evidence of gastroesophageal reflux (GER) disease to determine the frequency of transient relaxation of the lower esophageal sphincter (LES) an...

journal_title：Gastroenterology

authors： Mittal RK,McCallum RW

更新日期：1988-09-01 00:00:00

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

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

abstract：:In fed rats, acid production was estimated to be 7 X 10(8) molecules of HCl per cell per sec or 5 X 10(5) molecules per sec per mu2 of secretory surface. In stimulated frog mucosa the corresponding values were 3 X 10(8) molecules of HCl per cell per sec 2 X 10(5) molecules per sec per mu2 or secretory surface. The gen...

journal_title：Gastroenterology

authors： Helander HF

更新日期：1977-10-01 00:00:00

abstract：:Adenylate cyclase activity was measured in rat small intestinal villus and crypt cells after in vivo and in vitro exposure to cholera toxin. The increase in intestinal adenylate cyclase induced by cholera toxin in vivo appeared to be largely confined to the villus cell with the largest increase observed for upper vill...

journal_title：Gastroenterology

authors： Weiser MM,Quill H

更新日期：1975-08-01 00:00:00

abstract：BACKGROUND & AIMS:The effects of leukotriene (LT) D(4) on intestinal epithelial cells govern events that are involved in cell survival and colon cancer, notably increased expression of cyclooxygenase (COX)-2 and enhanced production of prostaglandin E(2). We investigated possible correlations between distribution of the...

journal_title：Gastroenterology

authors： Ohd JF,Nielsen CK,Campbell J,Landberg G,Löfberg H,Sjölander A

更新日期：2003-01-01 00:00:00

abstract：:Hepatic plasma flow was assessed with sorbitol (hepatic extraction = 0.96) at steady state. After infusion of 50 mg/min for 3 h, total and renal sorbitol clearances were calculated, and the extrarenal clearance was obtained by taking the difference between the two. In normal volunteers, the mean (+/- SD) extrarenal so...

journal_title：Gastroenterology

authors： Zeeh J,Lange H,Bosch J,Pohl S,Loesgen H,Eggers R,Navasa M,Chesta J,Bircher J

更新日期：1988-09-01 00:00:00

abstract：:This report defines criteria and reviews the epidemiology, pathophysiology, and management of common anorectal disorders: fecal incontinence (FI), functional anorectal pain and functional defecation disorders. FI is defined as the recurrent uncontrolled passage of fecal material for at least 3 months. The clinical fea...

journal_title：Gastroenterology

authors： Rao SS,Bharucha AE,Chiarioni G,Felt-Bersma R,Knowles C,Malcolm A,Wald A

更新日期：2016-03-25 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：:Intracellular recording methods were used to study the effects of morphine on electrical behavior of myenteric neurons in cat small intestine. Two general categories of myenteric ganglion cells were found. AH/Type 2 neurons and relatively high resting membrane potentials, low input resistances, spikes only at the onse...

journal_title：Gastroenterology

authors： Wood JD

更新日期：1980-12-01 00:00:00

abstract：:Somatostatin receptor frequency was evaluated in 12 human exocrine pancreatic carcinomas taken after surgery. The tumors were analyzed by receptor autoradiography on tissue sections and by in vitro binding techniques on tumor homogenates. None of the tested human pancreatic carcinomas was shown to possess specific som...

journal_title：Gastroenterology

authors： Reubi JC,Horisberger U,Essed CE,Jeekel J,Klijn JG,Lamberts SW

更新日期：1988-09-01 00:00:00

abstract：BACKGROUND & AIMS:Oral linaclotide, a novel agonist of guanylate cylase-C, stimulates intestinal fluid secretion and transit, and decreases visceral hypersensitivity in animal studies. In healthy volunteers, linaclotide was safe, well tolerated, increased stool frequency, and decreased stool consistency and time to fir...

journal_title：Gastroenterology

authors： Andresen V,Camilleri M,Busciglio IA,Grudell A,Burton D,McKinzie S,Foxx-Orenstein A,Kurtz CB,Sharma V,Johnston JM,Currie MG,Zinsmeister AR

更新日期：2007-09-01 00:00:00

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

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

更新日期：1989-01-01 00:00:00

abstract：:This document presents the official recommendations of the American Gastroenterological Association (AGA) Institute on "Use of Gastrointestinal Medications in Pregnancy." It was approved by the Clinical Practice and Economics Committee on February 22, 2006, and by the AGA Institute Governing Board on April 20, 2006. ...

journal_title：Gastroenterology

authors： Mahadevan U,Kane S

更新日期：2006-07-01 00:00:00

abstract：:Endogenous pancreatic prostaglandin production in control and obstructive jaundice was investigated using isolated and perfused dog pancreas. In both groups, spontaneous production of prostaglandin E2 and prostaglandin I2 was recorded, and the levels did not change in both groups. The production of both prostaglandins...

journal_title：Gastroenterology

authors： Kuroda T,Kajikawa S,Hanazaki K,Horigome N,Sodeyama H,Horiuchi A,Iwatsuki K,Chiba S,Homma T,Iida F

更新日期：1990-05-01 00:00:00

abstract：:Skin tests and measurement of serum levels of immunoglobulin E do not accurately identify foods for elimination from the diets of patients with eosinophilic esophagitis (EoE). We investigated whether an esophageal prick test, in which the esophageal mucosa is challenged by local injection of allergen extracts, could i...

journal_title：Gastroenterology

authors： Warners MJ,Terreehorst I,van den Wijngaard RM,Akkerdaas J,van Esch BCAM,van Ree R,Versteeg SA,Smout AJPM,Bredenoord AJ

更新日期：2018-01-01 00:00:00

abstract：BACKGROUND & AIMS:We investigated the prevalence of germline mutations in APC, ATM, BRCA1, BRCA2, CDKN2A, MLH1, MSH2, MSH6, PALB2, PMS2, PRSS1, STK11, and TP53 in patients with pancreatic cancer. METHODS:The Ontario Pancreas Cancer Study enrolls consenting participants with pancreatic cancer from a province-wide elect...

journal_title：Gastroenterology

authors： Grant RC,Selander I,Connor AA,Selvarajah S,Borgida A,Briollais L,Petersen GM,Lerner-Ellis J,Holter S,Gallinger S

更新日期：2015-03-01 00:00:00

abstract：BACKGROUND & AIMS:Alcoholic hepatitis (AH) is characterized by hepatocellular damage, inflammation, and fibrosis. We performed a prospective study to associate hepatic expression of the CXC subfamily of chemokines with histology findings and prognosis of patients with AH. METHODS:Liver biopsy samples from 105 patients...

journal_title：Gastroenterology

authors： Dominguez M,Miquel R,Colmenero J,Moreno M,García-Pagán JC,Bosch J,Arroyo V,Ginès P,Caballería J,Bataller R

更新日期：2009-05-01 00:00:00

abstract：BACKGROUND & AIMS:Deoxycholate (DC) has proapoptotic and tumorigenic effects in different cell types of the gastrointestinal tract. Exposure of BHK-21 (stromal) cells to DC induces Ca(2+) entry at the plasma membrane, which affects intracellular Ca(2+) signaling. We assessed whether DC-induced increases in [Ca(2+)] can...

journal_title：Gastroenterology

authors： Gerbino A,Ranieri M,Lupo S,Caroppo R,Debellis L,Maiellaro I,Caratozzolo MF,Lopez F,Colella M

更新日期：2009-09-01 00:00:00