abstract：:The polypeptide core of mucin glycoprotein subunits resists cleavage by proteases. To determine if the carbohydrate side chains of these subunits protect the underlying polypeptide core from proteolytic cleavage, we compared the effect of pancreatic proteases on hog gastric mucin before and after cleavage of its carbo...

journal_title：Gastroenterology

authors： Variyam EP,Hoskins LC

更新日期：1983-03-01 00:00:00

abstract：:To determine if changes in intestinal motility occur during pregnancy, we studied small intestinal myoelectric activity, using monopolar electrodes, in fasted pregnant rats from day 12 to day 18 of the 22-day gestation period. We also studied fasting myoelectric activity in postpartum, nonpregnant, and castrate female...

journal_title：Gastroenterology

authors： Scott LD,Lester R,Van Thiel DH,Wald A

更新日期：1983-02-01 00:00:00

abstract：:Pentane, a volatile hydrocarbon, is cleared from inspired air by the rat. We have studied this clearance to learn whether or not it is a function of the liver. Rats were put individually into airtight chambers which contained CO2 absorbent and were connected to an O2 reservoir. Pentane was injected into each chamber a...

journal_title：Gastroenterology

authors： Burk RJ,Ludden TM,Lane JM

更新日期：1983-01-01 00:00:00

abstract：:A prospective study of 22 patients with antibiotic-associated pseudomembranous colitis demonstrated that the most distal location of the pseudomembranes was noted from 0 to 25 cm from the anus in 17 patients, from 25 to 60 cm from the anus in 3 patients, and greater than 60 cm from the anus in only 2 patients. These d...

journal_title：Gastroenterology

authors： Tedesco FJ,Corless JK,Brownstein RE

更新日期：1982-12-01 00:00:00

abstract：:We describe a novel "silvering" method to determine the surface area of nonspherical objects and have applied this method to human cholesterol gallstones. A standard curve is first constructed, using data obtained from the dissolution rates of silver-coated plastic spheres of known dimensions in unstirred thiosulfate-...

journal_title：Gastroenterology

authors： Park YH,Igimi H,Carey MC

更新日期：1982-11-01 00:00:00

abstract：UNLABELLED:We investigated a patient (W.B.) with chronic symptomatic Giardiasis despite seven separate courses of either quinacrine or metronidazole who was cured by combined quinacrine and metronidazole. After isolating Giardia lamblia from W.B., we cultured the trophozoites to make the following observations. In vitr...

journal_title：Gastroenterology

authors： Smith PD,Gillin FD,Spira WM,Nash TE

更新日期：1982-10-01 00:00:00

abstract：:Neuron specific enolase, the most acidic isoenzyme of the glycolytic enzyme enolase, was first believed to be present exclusively in central neurons. More recently, it has been found in peripheral autonomic nerves and in a number of endocrine cells. An immunocytochemical study was carried out concerning the distributi...

journal_title：Gastroenterology

authors： Bishop AE,Polak JM,Facer P,Ferri GL,Marangos PJ,Pearse AG

更新日期：1982-10-01 00:00:00

abstract：:To understand the disorders of bowel motility, it is important to know the range of bowel patterns in the general population. We have devised a brief self-administered questionnaire which, when used among a group of 789 students and hospital employees, disclosed that 94.2% had stool frequencies between three per day a...

journal_title：Gastroenterology

authors： Drossman DA,Sandler RS,McKee DC,Lovitz AJ

更新日期：1982-09-01 00:00:00

abstract：:To study the relationship between gallstone disease (cholelithiasis and cholecystectomy) and cancer, a case-control study was performed in two Swedish hospitals comparing the prevalence of gallstone disease discovered at necropsy in 1422 subjects who died of cancer and 1205 subjects who did not die of cancer. Gallston...

journal_title：Gastroenterology

authors： Lowenfels AB,Domellöf L,Lindström CG,Bergman F,Monk MA,Sternby NH

更新日期：1982-09-01 00:00:00

abstract：:An adult patient with chronic idiopathic intestinal pseudo-obstruction maintained on home parenteral nutrition for 6 consecutive years died from cardiomyopathy and ventricular fibrillation. Postmortem examination of the heart revealed widespread myocytolysis and replacement fibrosis similar to that seen in the seleniu...

journal_title：Gastroenterology

authors： Fleming CR,Lie JT,McCall JT,O'Brien JF,Baillie EE,Thistle JL

更新日期：1982-09-01 00:00:00

abstract：:We have used measurements of intestinal epithelial cell kinetics and counts of intraepithelial lymphocytes and mucosal mast cells to measure small intestinal mucosal changes during the proliferative and recovery phases of graft-vs.-host reaction in neonatal mice. Unirradiated (CBA x BALB/c)F1 mice were injected with p...

journal_title：Gastroenterology

authors： Mowat AM,Ferguson A

更新日期：1982-08-01 00:00:00

abstract：:A multicenter study was conducted on 173 patients with active, endoscopically proven duodenal ulcers (158 men, 15 women). They were randomly assigned, in a double-blind manner, to two groups: those receiving placebo capsules (91 patients) and those receiving capsules containing 100 microgram of 15(R)-15-methyl prostag...

journal_title：Gastroenterology

authors： Vantrappen G,Janssens J,Popiela T,Kulig J,Tytgat GN,Huibregtse K,Lambert R,Pauchard JP,Robert A

更新日期：1982-08-01 00:00:00

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

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

更新日期：1982-08-01 00:00:00

abstract：:Individual l-amino acids were instilled intragastrically to determine possible differences in stimulation of gastric acid secretion and gastrin and pancreatic polypeptide release. Phenylalanine and tryptophan were significantly more potent stimulants of gastric acid secretion and of pancreatic polypeptide and gastrin ...

journal_title：Gastroenterology

authors： Taylor IL,Byrne WJ,Christie DL,Ament ME,Walsh JH

更新日期：1982-07-01 00:00:00

abstract：:Colonic and intestinal alkaline phosphatase were studied histoenzymatically and biochemically in normal mucosae from eight hemicolectomy specimens. Histochemically, the most intense reaction was found in the small intestine, followed by vascular endothelium and colonic epithelium, respectively. The reaction was strong...

journal_title：Gastroenterology

authors： Lev R,Griffiths WC

更新日期：1982-06-01 00:00:00

abstract：:Although Hemoccult (Smith Kline Diagnostics, Inc., Sunnyvale, Calif.) screening for colorectal cancer is based on detection of the peroxidase activity of blood, little is known about the relationship between patterns of bleeding from cancers or adenomas and sensitivity of the test slides. 51Cr-labeled blood loss was m...

journal_title：Gastroenterology

authors： Macrae FA,St John DJ

更新日期：1982-05-01 00:00:00

abstract：:We studied the effect of chronic aspirin ingestion on gastroduodenal epithelial proliferation by feeding rats aspirin in the drinking water. A control group of rats received plain water. At the end of 4 wk, [3H]-thymidine was given intravenously to label proliferating cells, and the rats were killed 1 h later. Section...

journal_title：Gastroenterology

authors： Eastwood GL,Quimby GF

更新日期：1982-05-01 00:00:00

abstract：:The importance of various factors for dietary fiber effects on pancreatic enzyme activities was studied in vitro. Pectin of high methylic esterification and guar gum, which reduced enzyme activities, particularly lipase activity, increased the viscosity of duodenal juice. Increasing duodenal juice viscosity by polyeth...

journal_title：Gastroenterology

authors： Isaksson G,Lundquist I,Ihse I

更新日期：1982-05-01 00:00:00

abstract：:We have previously shown that in pregnancy fasting gallbladder volume is increased and emptying after a small volume liquid meal is incomplete. In this study we measured gallbladder volume throughout day and night in healthy women ingesting regular meals. Pregnant women, postpartum women, contraceptive-steroid users, ...

journal_title：Gastroenterology

authors： Everson GT,McKinley C,Lawson M,Johnson M,Kern F Jr

更新日期：1982-04-01 00:00:00

abstract：:A 76-yr-old male presented with Guillain-Barré syndrome after acute hepatitis B virus infection. Main immunologic features were: (a) high levels of circulating hepatitis B surface antigen-containing immune complexes in serum and cerebrospinal fluid during the acute neurologic syndrome, and (b) clearance of immune-comp...

journal_title：Gastroenterology

authors： Penner E,Maida E,Mamoli B,Gangl A

更新日期：1982-03-01 00:00:00

abstract：:We studied the influence of morphine on intestinal secretion induced by three different secretogogues in an attempt to elucidate the mechanism for its antisecretory activity. In rabbit ileal mucosa in vitro morphine (10(-4) M) did not influence the electrical response to the subsequent administration of prostaglandin ...

journal_title：Gastroenterology

authors： McKay JS,Linaker BD,Higgs NB,Turnberg LA

更新日期：1982-02-01 00:00:00

abstract：:We investigated the possibility that monocyte suppressor cells play a role in the peripheral lymphocyte hyporesponsiveness of chronic liver disease by utilizing assays of monocyte-mediated suppressor activity in 46 patients with chronic liver disease and 46 controls. The percent change achieved by the addition of indo...

journal_title：Gastroenterology

authors： Holdstock G,Chastenay BF,Krawitt EL

更新日期：1982-02-01 00:00:00

abstract：:A case of acute hypervitaminosis A complicating viral hepatitis is reported. Twenty days after presenting with hepatitis B, a 42-yr-old vegetarian developed acute hypervitaminosis A in the absence of recent, massive exposure to the vitamin. Findings included headache, confusion, skin desquamation, and hypercalcemia. P...

journal_title：Gastroenterology

authors： Hatoff DE,Gertler SL,Miyai K,Parker BA,Weiss JB

更新日期：1982-01-01 00:00:00

abstract：:Detailed porphyrin analysis and additional ultrastructural abnormalities of liver cells are described in a patient with features of Rotor's syndrome. Normal values of porphyrin precursors, delta-aminolevulinic acid and porphobilinogen, and porphyrins were found in plasma, urine, and erythrocytes. However, fecal porphy...

journal_title：Gastroenterology

authors： Evans J,Lefkowitch J,Lim CK,Billing B

更新日期：1981-12-01 00:00:00

abstract：:Modern manometric and scintigraphic techniques were employed in an effort to determine the relationships between esophageal contractions and esophageal transit and clearance. The effects of direct cholinergic stimulation with bethanechol and blockade with atropine were evaluated in a total of 20 normal subjects and 13...

journal_title：Gastroenterology

authors： Phaosawasdi K,Malmud LS,Tolin RD,Stelzer F,Applegate G,Fisher RS

更新日期：1981-11-01 00:00:00

abstract：:Gastrointestinal loss of plasma is usually measured with radiolabeled macromolecules. These methods are expensive and cumbersome. The use of alpha 1-antitrypsin as an endogenous marker and the determination of alpha 1-antitrypsin fecal clearance enable the diagnosis of protein-losing enteropathy. alpha 1-Antitrypsin i...

journal_title：Gastroenterology

authors： Florent C,L'Hirondel C,Desmazures C,Aymes C,Bernier JJ

更新日期：1981-10-01 00:00:00

abstract：:Serum amino acid levels were determined in 29 patients with severe chronic active liver disease before, during, and after administration of prednisone or placebo and in 22 healthy controls. The pretreatment molar ratio of amino acids was less in patients than in controls (p less than 0.001) and was lower in those with...

journal_title：Gastroenterology

authors： McCullough AJ,Czaja AJ,Jones JD,Go VL

更新日期：1981-10-01 00:00:00

abstract：:The influence of adaptive cell proliferation on colonic carcinogenesis was studied in male Fischer rats with a defunctioning transverse colostomy that was closed 4 wk later. Control observations were made in other rats after colonic transection, repeated at 4 wk, after laparotomy alone, or after permanent colostomy. T...

journal_title：Gastroenterology

authors： Terpstra OT,Dahl EP,Williamson RC,Ross JS,Malt RA

更新日期：1981-09-01 00:00:00

abstract：:Acute liver injury was induced experimentally in rats by a single injection of a large amount of D-galactosamine. Hepatocellular damage was apparent from decrease of total serum proteins, marked release of transaminases into the circulation, precipitous decrease of total microsomal proteins, and intracellular enzymes ...

journal_title：Gastroenterology

authors： Sawamura T,Kawasato S,Shiozaki Y,Sameshima Y,Nakada H,Tashiro Y

更新日期：1981-09-01 00:00:00

abstract：:A 22-yr-old woman with a 7-yr history of systemic lupus erythematosus presented with anasarca and a serum albumin of 0.8 g/dl. Renal and hepatic function were near normal; the major route of protein loss appeared to be the intestine. A full-thickness section of jejunum obtained at laparotomy demonstrated a severe, dif...

journal_title：Gastroenterology

authors： Weiser MM,Andres GA,Brentjens JR,Evans JT,Reichlin M

更新日期：1981-09-01 00:00:00

abstract：:We studied whether 16,16--dimethyl prostaglandin E2 (dmPGE2) may prevent acute liver damage induced by carbon tetrachloride (CCl4) in the rat. One hundred thirty male rats were divided into the following groups: (1) controls, (2) rats given CCl4 6670 mg/kg body wt subcutaneously, (3) rats pretreated with 5 micrograms/...

journal_title：Gastroenterology

authors： Stachura J,Tarnawski A,Ivey KJ,Mach T,Bogdal J,Szczudrawa J,klimczyk B

更新日期：1981-08-01 00:00:00

abstract：:Exogenous administration of substances extracted from rodent salivary glands may increase the resistance of gastric mucosal barrier to the disruptive actions of ulcerogenic agents and/or reduce acid secretory output. In the present study the influence of desalivation in the rat on acid secretory function and mucosal i...

journal_title：Gastroenterology

authors： Skinner KA,Tepperman BL

更新日期：1981-08-01 00:00:00

abstract：:A randomized, double-blind comparison of lactose enemas plus placebo tablets vs. starch enemas plus neomycin tablets was performed on 18 patients with acute portal systemic encephalopathy. Ten patients received starch enemas (10%; 1000 ml t.i.d.) plus neomycin tablets and 8 patients received lactose enemas (20%; 1000 ...

journal_title：Gastroenterology

authors： Uribe M,Berthier JM,Lewis H,Mata JM,Sierra JG,García-Ramos G,Ramírez Acosta J,Dehesa M

更新日期：1981-07-01 00:00:00

abstract：:The relationship between gastric pepsin, acid secretion, and duodenal ulcer activity was studied in 33 patients with an endoscopically proven carter, in 17 patients who were studied within 3 mo of an acute crater but who no longer had a crater endoscopically, and in 10 patients who had no duodenal ulcer symptoms for l...

journal_title：Gastroenterology

authors： Achord JL

更新日期：1981-07-01 00:00:00

abstract：:A new model of an acute bleeding gastric ulcer with a single bleeding artery in its base has been developed. A suction ulcer defect is created over a large, submucosal artery. Small bleeding marginal vessels are electrocoagulated with a fine-tipped bipolar forceps. The artery in the base of the ulcer is dissected free...

journal_title：Gastroenterology

authors： Dennis MB,Silverstein FE,Gilbert DA,Peoples JE

更新日期：1981-06-01 00:00:00

abstract：:Fifty consecutive patients with symptomatic endoscopically proven duodenal ulcer were randomized double-blind to Mylanta II or cimetidine treatment schedules. Smoking habits were noted, but patients were not advised to alter these. Healing was determined by reendoscopy at 6 wk. Eighty percent of patients on active cim...

journal_title：Gastroenterology

authors： Korman MG,Shaw RG,Hansky J,Schmidt GT,Stern AI

更新日期：1981-06-01 00:00:00

abstract：:Ileocecal sphincter pressure was studied in the cat, using an open-tipped perfused catheter system. Ileocecal sphincter pressure was measured under basal conditions and in response to bethanechol or direct vagal nerve electrical stimulation. The pressure was 26.1 +/- 5.0 mmHg basally, and was unaltered by section of e...

journal_title：Gastroenterology

authors： Rubin MR,Cardwell BA,Ouyang A,Snape WJ Jr,Cohen S

更新日期：1981-05-01 00:00:00

abstract：:A controlled trial has been undertaken to evaluate adenine arabinoside in the treatment of hepatitis B surface antigen-positive chronic liver disease. Thirteen patients (7 hepatitis B virus DNA polymerase and hepatitis B e antigen-positive, 6 DNA polymerase negative and hepatitis B e antibody-positive) were treated wi...

journal_title：Gastroenterology

authors： Bassendine MF,Chadwick RG,Salmeron J,Shipton U,Thomas HC,Sherlock S

更新日期：1981-05-01 00:00:00

abstract：:A prospective and randomized study was performed comparing pneumatic forceful dilatation and surgical esophagomyotomy as primary treatment of patients with achalasia of the esophagus. Eighteen dilated and 20 operated patients were studied before and after treatment with 1 patient lost. Clinical, radiologic, and manome...

journal_title：Gastroenterology

authors： Csendes A,Velasco N,Braghetto I,Henriquez A

更新日期：1981-04-01 00:00:00

abstract：:Two women, aged 19 and 28 yr, who had been on the contraceptive pill for at least 18 mo, developed abnormal levels of circulating liver enzymes, minimal hepatomegaly, and elevated erythrocyte sedimentation rate. Liver biopsy in both women showed a sinusoidal dilatation sparing the perihepatic venous regions. The liver...

journal_title：Gastroenterology

authors： Camilleri M,Schafler K,Chadwick VS,Hodgson HJ,Weinbren K

更新日期：1981-04-01 00:00:00