Search Results
Results 301 - 350 of 639
< 2 3 4 5 6 7 8 9 10 11 12 >
Asakawa A - - 1999
BACKGROUND & AIMS: Gastric emptying plays an important role in regulating food intake. This study was designed to investigate whether intraperitoneally injected urocortin reduces gastric emptying, feeding, and body weight in lean and ob/ob obese mice. METHODS: Food intake and body weight were measured after intraperitoneal injections of one of ...
Buemann B - - 1999
D-Tagatose is a stereoisomer of D-fructose which is poorly absorbed in the small intestine and may, therefore, have potential as a reduced calorie bulk sweetener. However, one of the major limitations is the use of malabsorbed sugars is that their consumption may be associated with gastric discomfort. This is due ...
Kunze C P - - 1999
99mTc-Pertechnetate, 99mTc-mebrofenin, 99mTc-disofenin, 99mTc-sulfur colloid, and 99mTc-Dowex resin beads were evaluated for in vitro stability as a label for both dry extruded, and canned dog food for gastric emptying scintigraphy. A sample of each radiolabeled diet was added to water, gastric juice, intestinal juice, or gastric juice followed by intestinal ...
van der Velde P - - 1999
A new scintigraphic measurement technique is described that allows accurate assessment of gastric emptying in between as well as during a number of successive meals. Measurements were made every minute of food intake, gastric nutrient filling, and gastric emptying over a 6 h, 40 min period in conscious, free-feeding, loosely ...
Wu Yin-Ai - - 1999
AIM:To investigate the effect of gastroenteric reconstruction on the nutritional status of patients with gastric cancer after total gastrectomy.METHODS: From 1989-1994, nutritional status was studied in 24 patients, including 12 patients with the gastric reservoir and pyloric sphincter reconstruction (GRPS), 7 with Braun's esophago-jejunostomy (EJ) and 5 with Lawrance's Roux ...
Taylor C J - - 1999
OBJECTIVE: To investigate gastric emptying and intestinal transit of pelleted pancreatin in relation to food boluses. METHODS: Dual isotope scintigraphy combined with breath hydrogen sampling was used to track the concurrent gastric emptying and intestinal transit of 111indium labelled microspheres and a 99mtechnetium labelled tin colloid test meal. Twelve pancreatic ...
McCallum R W - - 1999
BACKGROUND: Delta-9-tetrahydrocannabinol (THC), the active constituent of marijuana, is an effective agent in the prevention of chemotherapy-induced nausea and vomiting. AIM: To determine the effect of THC on gastric emptying of a radiolabelled solid food in humans. METHODS: Thirteen healthy volunteers underwent gastric emptying studies after receiving THC and placebo ...
Krahn L E - - 1999
Because it is a competitive inhibitor of tyrosine hydroxylase, alpha-methyl-para-tyrosine (AMPT) is used to study psychiatric disorders. Melatonin serves as a biological marker of catecholamine function since its secretion is regulated by noradrenergic neurons via beta-adrenergic receptors in the pineal gland. Ten healthy volunteers were administered AMPT in a double-blind ...
Portela-Gomes G M - - 1999
Colocalisation of synaptophysin has been studied in different neuroendocrine cell types in histologically normal mucosa from human gastrointestinal tract (corpus, antrum, duodenum, ileum and colon) using double-immunofluorescence stainings. Numerous synaptophysin immunoreactive cells were seen in the antrum, while a smaller number were found in the intestinal tract. Synaptophysin immunoreactivity was ...
Logeman F - - 1999
BACKGROUND/AIMS: The gastric emptying pattern after esophageal resection and narrow gastric tube reconstruction is determined by multiple factors. One of the possible factors is a disruption in the neurohumoral enterogastric inhibitory reflex. The aim of the present study was to determine the possible alterations of this reflex after esophageal resection ...
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 ...
< 2 3 4 5 6 7 8 9 10 11 12 >