Search Results
Results 301 - 350 of 629
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Bechi P - - 1999
Bilitec 2000 is a new device which spectrophotometrically detects the presence of bilirubin in the refluxate. It is, up to date, the only method able to monitor for 24 hours the exposure time of esophageal and/or gastric mucosa to bilirubin-containing reflux. From the technical point of view, a particularly relevant ...
Kuwata H - - 1998
The ability to define specific alterations in the structure and function of proteins as they are introduced and processed in vivo remains an important goal. We have evaluated the generation, in vivo, of an antimicrobial peptide (lactoferricin) derived from ingested bovine lactoferrin by surface-enhanced laser desorption/ionization (SELDI). SELDI was used ...
Santangelo A - - 1998
To verify the influence of food consistency on satiety mechanisms we evaluated the effects of the same meal in solid-liquid (SM) and homogenized (HM) form on satiety sensation, gastric emptying rate and plasma cholecystokinin (CCK) concentration. Eight healthy men, aged 21-28 (mean 24.5) years were given two meals (cooked vegetables ...
Smith S A - - 1998
OBJECTIVE: To assess the effect of percutaneous endoscopic gastrostomy (PEG) tube placement on gastric emptying in clinically normal cats. ANIMALS: 8 healthy adult 3- to 5-year-old cats. PROCEDURE: Cats were accommodated to the diet for 2 weeks prior to scintigraphy. Caloric needs were divided into 3 feedings/d. Food was withheld ...
Ito M - - 1998
An immature seal, about one-year-old, died a natural death. At autopsy, a large number of Contracaecum osculatum and Pseudoterranova decipiens, as well as some of Anisakis simplex were found in the stomach together with numerous Corynosoma strumosum in the small intestine and colon. Histopathological examination revealed epithelial desquamation, congestion and ...
Ladabaum U - - 1998
Nausea and gastric dysrhythmias occur in conditions associated with gastric distension. The roles of distal and proximal gastric mechanoreceptors in these responses are unexplored. Because antral distension induces vomiting in animals and antral and fundic vagal afferent discharges differ, we hypothesized that distal gastric distension in humans leads to greater ...
Guidobono F - - 1998
1. Amylin is a new pancreatic islet peptide with a role in the maintenance of glucose homeostasis. 2. Amylin is predominantly present in the beta cells of the pancreas and to a lesser extent in the gastrointestinal tract and in the nervous system, where amylin mRNA is also present along ...
Hillel P G - - 1998
Cystic fibrosis patients require pancreatic enzyme supplements to aid food digestion. It is suspected that incorrect delivery of this enzyme may result in both significant malabsorption and the development of strictures in the proximal colon caused by the high-dose supplement reaching this region before the food. Investigations into the drug's ...
Kobayashi I - - 1998
BACKGROUND: Transient gastric stasis immediately after pylorus-preserving pancreatoduodenectomy (PPPD) is a common complication, but the cause remains unknown. Changes in gastric emptying were investigated in patients undergoing PPPD for periampullary malignancy. METHODS: In 14 patients undergoing PPPD, liquid- and solid-phase gastric emptying were evaluated before and after operation (mean 38 ...
Phillips M R MR Department of Surgery, Mayo Clinic Rochester, Minnesota, - - 1998
Bezoars are conglomerates of food or fiber in the alimentary tract of humans and certain animals, mainly ruminants. In adults, bezoars are most frequently encountered after a gastric operation, but in children, bezoars are associated with pica, mental retardation, and coexistent psychiatric pathologic disorders. We describe a 4-year-old girl with ...
Galanis D J - - 1998
BACKGROUND: We report on the associations between the intake of certain foods and beverages and the incidence of gastric cancer in a cohort of 11,907 randomly selected Japanese residents of Hawaii (6297 women and 5610 men). METHODS: The daily intake of six beverages, cigarettes and alcohol and the weekly frequency ...
Liedman B - - 1998
BACKGROUND: Weight loss after total gastrectomy is a regular occurrence. Reconstruction with a gastric substitute has been suggested to facilitate recovery, but few randomized studies are available. METHODS: In a randomized study comparing subtotal, total and total gastrectomy with an S-shaped pouch, 36 patients who had total gastrectomy with or ...
Horikawa Y - - 1998
The gastric emptying of indigestible solids is affected by the size, specific gravity, shape, consistency and the compressibility of the indigestible solids and depends largely on the composition of the meal. The threshold size is about 3.0 mm in canine. But it is reported that the estimates made for dogs ...
Berg M D - - 1998
We describe a child in cardiac arrest with severe ventilatory compromise due to gastric distention. During cardiopulmonary resuscitation (CPR), positive pressure ventilation may lead to gastric insufflation because of decreased pulmonary compliance and decreased lower esophageal sphincter tone. Essentially, gas delivered will follow the path of least resistance, which may ...
Cuche G - - 1998
Ileal infusion of cecocolonic contents, used to mimick reflux, enhanced terminal ileal motility, increasing the frequencies of prolonged propagated contractions (PPC) and discrete clustered contractions (DCC). Because the reflux rate in dogs and humans is marginal, the relationship of these motor patterns to reflux remained putative. In six conscious pigs, ...
Jauniaux T - - 1998
During winter 1994-95, four and three sperm whales (Physeter macrocephalus) were stranded along the Belgian and the Dutch coasts, respectively. Necropsies and tissue samplings were collected 24 hrs post mortem. Lesions on several whales included round and linear skin scars, ventral skin abrasions, acute skin ulcers, acute ulcerative stomatitides, acute ...
Busetto L - - 1997
OBJECTIVE: To evaluate the effects of a new timing strategy of band adjustment on the short-term outcome of obese women operated with adjustable silicone gastric banding. SUBJECTS: The outcome of 30 women without binge-eating disorder operated with laparoscopic adjustable silicone gastric banding with a wider intraoperatory band calibration (LAP-BAND) was ...
Guilford W G - - 1997
OBJECTIVES: To determine accuracy of abdominal radiography in locating radiopaque markers in the gastrointestinal tract and to assess correlation between gastric emptying rate of radiopaque markers and that of canned food. ANIMALS: 17 healthy dogs. PROCEDURE: Dogs were fed thirty 1.5-mm markers and ten 5-mm markers mixed in sufficient food ...
Steyn P F - - 1997
Intravenous diazepam has been advocated as an appetite stimulant in anorexic cats. Diazepam has also been used to stimulate the intake of radiographic contrast medium-food mixture to determine the gastric emptying time of a solid meal. Diazepam has been suspected to delay gastric emptying in cats. One study found diazepam ...
Zabielski R - - 1997
Daily secretion of pancreatic juice, including postprandial responses to food, was investigated in two groups of calves: preruminant (fed with liquid food) and ruminant (fed with solid food). Male Friesian calves (1 week old and 6 weeks old) were surgically fitted with a pancreatic duct catheter, duodenal cannula and two ...
Francis J - - 1997
Recently a number of studies have provided evidence which suggests that CCK and 5-HT interact in the control of food intake. The present experiments further examine this mechanism and the possibility that CCK and 5-HT interact in the control of gastric emptying. The selective CCK-A receptor antagonist, devazepide, (0.03-3.0 mg/kg) ...
Sparkes A H - - 1997
Commercial barium-impregnated polyethylene spheres (BIPS) were administered to 12 healthy adult cats according to the manufacturer's instructions (30 small BIPS and 10 large BIPS to each cat) together with 60 g of a canned food. Radiographs were taken at hourly intervals until seven hours after feeding, and then at eight, ...
Lepionka L - - 1997
Control of food ingestion related to proximal gastric distension has never been demonstrated in pigs. The aim of this study was to demonstrate its existence. Meal duration, food intake rate and characteristics of non-ingestion periods were evaluated during the ingestion of a 500 g meal with simultaneous balloon distension of ...
Näslund E - - 1997
The object of this study was to examine whether eating behavior, food preference, gastric emptying, and gut hormone patterns are altered after jejunoileal bypass (JIB) in patients with severe obesity. Eight obese [mean (+/- SD) body mass index (BMI; in kg/m2) 42.9 +/- 4] subjects were studied prospectively before and ...
Grande L - - 1997
The purpose of this study was to assess the effects of red wine taken with meals on esophageal motility, esophageal exposure to acid, and gastric pH. Following a randomized design, 14 healthy male volunteers (mean age 25 years, range 18-35 years were given 360 ml of red wine or tap ...
Iraki L - - 1997
The rule of Ramadan (1 month of food and water intakes restricted to night hours) is followed by the majority of the Moslem fraction of the human population, but the possible consequences of this long-lasting modification of food intake schedule on public health have not yet been extensively documented. Therefore, ...
Jayaram A - - 1997
This study used ultrasound imaging to compare stomach contents and gastric emptying of women in the postpartum period with those of nonpregnant women. In the first part of the study, the presence or absence of solid food particles was compared between patients presenting for postpartum tubal ligation (n = 28) ...
Hoskinson J J - - 1997
Development of appropriate radiolabeled diets for solid-phase gastric emptying studies in experimental animals is important for testing the effects of disease, drugs, surgical procedures and stress. This study evaluates the in vitro and in vivo stability of various radiolabels in commercially available dry, extruded and canned cat foods. METHODS: Dry, ...
Mabayo R T - - 1997
The role of cholinergic mechanisms in the delayed food passage from the crop induced by medium chain triacylglycerol was investigated in the young chicken. Vagotomy altered the crop emptying of chicks given dietary long chain triacylglycerol, but did not alter it in chicks given dietary medium chain triacylglycerol. On the ...
Rashotte M E - - 1997
Two indicators of nocturnal digestive activity were identified in pigeons. Experiment 1 showed that a sizable amount of food empties from the crop while pigeons are inactive during the night. Experiment 2 showed that the number and volume of cloacal droppings during the night were directly related to the volume ...
Stachura J - - 1997
In a series of 555 gastric polyps characteristic Elster's polyps were identified in 31 cases. Spiral bacteria (Helicobacter pylori) in these polyps were sporadic, much less frequent (9.7%) than in hyperplastic polyps (35%) in the present series and in relation to the bacteria frequency found in our randomly chosen gastric ...
Volk M S - - 1996
BACKGROUND: A laser technique has been developed in the laboratory using a noncontact 810-nm diode laser. RESULTS: Mucosal intact laser tonsillar ablation (MILTA) coagulates tonsillar lymphoid tissue while preserving the overlying mucosa. A canine model was used to evaluate this new method. The canine tonsils were exposed to laser energy ...
Ahluwalia N K - - 1996
BACKGROUND: Proximal stomach by virtue of its property of accommodation acts as a reservoir for the ingested food, but its role in emptying and the factors modulating it remain unexplored. AIM: To assess the effects of distension and of feeding on proximal gastric tone. SUBJECTS: 14 healthy volunteers with no ...
Schippers E - - 1996
Small bowel myoelectrical activity and intestinal microflora were examined after partial gastrectomy and Roux-en-Y reconstruction in six dogs. Bacteriological analysis revealed a predominance of faecal bacteria. The basal electrical rhythm of the Roux limb was significantly decreased, while the frequency of phase III was increased (P < 0.05). In the ...
Bränström R - - 1996
Evaluation of gastrointestinal myoelectric activity has been limited by the assessment techniques and the complexity of the recorded myoelectric signal. Commonly, myoelectric activity is evaluated as motor patterns, which only gives a semiquantitative measure of myoelectric events within the bowel wall. Using myoelectric recordings from the proximal small intestine in ...
Bengmark S - - 1996
Enteral nutrition (EN) has several advantages over parenteral nutrition (PN) for postoperative/posttrauma patients. Modern technologies for tube-feeding have made early EN possible. Jejunal tube-feeding has advantages over gastric tube-feeding: faster metabolic recovery, less vomiting, and less risk of regurgitation and aspiration. Immediate or early EN stimulates the splanchnic and hepatic ...
Parhofer K G - - 1996
Apolipoprotein B (apoB), the major protein component of triglyceride-rich lipoproteins secreted from the liver, plays crucial roles in the secretion, transport, and receptor-mediated clearance of lipoproteins. A minority of cases of familial hypobetalipoproteinemia is due to genetically determined truncations of apoB-100 that range in size from apoB-9 to apoB-89, but ...
Lördal M - - 1996
The occurrence of inflammation as indicated by extravasation of Evans blue bound to plasma proteins was examined in various parts of the gastrointestinal tract in the rat, following administration of tachykinins, capsaicin and hydrochloric acid. Intravenous neurokinin A dose-dependently induced extravasation in stomach, duodenum, jejunum, caecum and colon, but had ...
Vatier J - - 1996
We have developed an artificial stomach-duodenum model made up of three compartments representing the stomach, (including a fragment of hog gastric mucosa), the proximal duodenum, and the distal duodenum. Gastroduodenal flow rates are controlled by a microcomputer capable of (1) adjusting gastric emptying and alkaline secretion in the proximal duodenum ...
Jones K L - - 1996
To evaluate the effects of cisapride on gastric emptying of extracellular fat and hunger and fullness 10 volunteers consumed a meal consisting of 60 ml technectium-99m (99mTc)-V-thiocyanate labelled olive oil and 290 ml indium-113m (113mIn) labelled soup after taking cisapride (10 mg four times daily orally) and placebo, each for ...
Rauhofer E A - - 1996
To investigate the role of gastric contractility in the prepyloric control of meal size, we administered atropine methyl nitrate (3 mg/kg,ip) or saline prior to 30-min tests on 3 separate days in which 0.8 M sucrose was ingested by rats after 1 h of food deprivation. Ingested 0.8 M sucrose ...
Peterson W L - - 1996
Gastric acid secretion is stimulated by all foods, especially proteins, and many beverages, the most potent beverages are milk and fermented substances such as beer and wine. The effects of food on mucosal integrity have been little studied, whereas non-steroidal anti-inflammatory drugs are well known to induce tissue injury.
Treacy P J - - 1996
BACKGROUND: This study has investigated first the role of the antrum and pylorus in the retardation of gastric emptying during distension of the duodenum, and second whether ascending duodenal intramural nerves contribute to control of both antro-pyloric motility and liquid gastric emptying in response to distension of the duodenum. METHODS: ...
Carmel R - - 1995
Food-cobalamin malabsorption is marked by the inability to release cobalamin from food, which therefore cannot be taken up by intrinsic factor for absorption. The defect is not detectable by classical clinical tests like the Schilling test which are all based on the absorption of free, crystalline cobalamin. Tests of food-cobalamin ...
Urbain J L - - 1995
We evaluated intragastric food distribution and antral motor activity in patients with functional dyspepsia. METHODS: A standard gastric emptying test and dynamic imaging of the antrum were used to characterize gastric antral motility disturbances and to correlate them with total and compartmental gastric emptying in 25 dyspeptic patients. RESULTS: We ...
Exton M S - - 1995
The reduction of food intake in response to bacteria is posited to be a favourable host reaction. This report attempted to examine whether gastric emptying is involved in the known conditionability of this response. Additionally, this study investigated the role of prostaglandins in the conditioned anorexic response. To investigate this ...
Brouns F - - 1995
BACKGROUND: The objective of this study was to determine the effect of either carbohydrate content or osmolarity on gastric emptying rate in normal healthy subjects. METHODS: In total 12 test drinks were ingested as a single 8 mL/kg per body weight bolus on an empty stomach. Six of these drinks ...
Seeley R J - - 1995
Meal size does not change in response to food being restricted to the stomach by occlusion of the pylorus. This result has been used as evidence for a gastric model of meal termination where feedback arising solely from the stomach is taken to underlie satiation. Such data provide support for ...
Serfaty-Lacrosniere C - - 1995
OBJECTIVE: Low gastric pH is generally believed to be an important factor in intestinal mineral absorption. Thus, hypochlorhydria could be an important risk factor for mineral malabsorption and the development of marginal mineral status. We studied whether the hypochlorhydria associated with treatment with the anti-ulcer medication omeprazole, a potent gastric ...
Southgate D A - - 1995
Many factors potentially influence the digestion, absorption, and metabolism of the various species of sugars occurring in the human diet. Experimental evidence indicates that the source of sugars in foods does not in itself affect the rate of absorption or the metabolism of the sugars. However, the form in which ...
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