Search Results
Results 201 - 250 of 634
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McLellan Jonathan - - 2004
OBJECTIVE: To compare the rate of gastric emptying of a semisolid meal by use of the carbon 13-labeled octanoic acid breath test (13C-OBT) and gastric emptying ultrasonography (GEU) in dogs. ANIMALS: 10 healthy dogs. PROCEDURE: Food was withheld from dogs for 12 hours before ingestion of a test meal (bread, ...
Misu Naoko - - 2004
To investigate the effect of oral glucose intake on gastric motility, we measured gastric myoelectrical activity and gastric emptying on two test conditions: 1) glucose intake and 2) water intake in the same 10 healthy male volunteers (20 to 29 years old). Gastric motility was evaluated with cutaneous-recorded electrogastrography (EGG) ...
Covasa M - - 2004
Systemic or hindbrain administration of MK-801, a noncompetitive N-methyl-D-aspartate receptor antagonist, increases meal size. To examine whether MK-801 enhances intake by increasing gastric emptying, we administered MK-801 (2.0 microg/3.0 microl) into the fourth ventricle [intracerebroventricular (ICV)] and measured feeding and gastric emptying of 5-ml NaCl or 15% sucrose loads. In ...
Ogoshi Kyoji - - 2005
To assess the roles of the extent of gastric resection and duodenal food passage reconstruction in gastric cancer, we examined a consecutive series of 1,061 patients who underwent total or partial (proximal and distal) gastrectomies with or without duodenal food passage reconstruction between August of 1974 and January of 2002, ...
Hoad Caroline L - - 2004
Previous studies indicated that physical characteristics of food influence satiety, but the relative importance of the oral, gastric, and intestinal behaviors of the food is unclear. The aim of this study was to investigate the satiating effects of 2 types of alginates, which gel weakly or strongly on exposure to ...
Wildi Stephan M - - 2004
BACKGROUND: The postprandial increase of gastroesophageal reflux (GER) results largely from an increase in the rate of transient lower esophageal sphincter relaxations (TLESRs). Gastric distension is believed to be the most important contributing factor. The aim of this study was to determine the impact of rapid food intake on GER ...
Segev G - - 2004
Over a period of 10 days, 17 dogs became weak and developed neurological deficits of different degrees of severity. About 12 hours before these clinical signs appeared they had all eaten a particular brand of commercial dog food from a recently opened bag. They were all quadriparetic and hyporeflexic, and ...
Pellissier S - - 2004
Glicentin (GLIC) and oxyntomodulin (OXM or GLIC 33-69) are gut hormones which regulate digestion. They are known to reduce digestive secretions and to delay gastric emptying. Their biological activities on intestinal motility are still unknown. The effect of a systemic GLIC or OXM increase was investigated in rats on the ...
Kaneko Takao - - 2004
Effects of esculetin (6,7-dihydroxycoumarin) and its glycoside, esculin, on 8-oxo-2'-deoxyguanosine (8-oxodG) formation and carcinogenesis induced by a chemical carcinogen, N-nitrosobis(2-oxopropyl)amine (BOP), were examined in the pancreas of female Syrian golden hamsters. Animals were administered esculetin by gastric intubation into the stomach 30 min before BOP administration or ingestion of a ...
Madsen J L - - 2004
Nitric oxide (NO) is an inhibitory neurotransmitter released by non-adrenergic and non-cholinergic neurons that innervate the smooth muscles of the gastrointestinal tract. We examined whether NO, derived from a sustained-release preparation of isosorbide dinitrate, influenced gastric emptying and gastroduodenal motility after a meal. Eleven healthy volunteers participated in a double-blind, ...
Massaro Richard C - - 2004
The mechanism of action of Tenebrio molitor antidiuretic factor 'a' (Tenmo ADFa) was explored in isolated Malpighian tubules of Aedes aegypti. In the Ramsay assay of fluid secretion, Tenmo ADFa (10(-9) mol l(-1)) significantly inhibited the rate of fluid secretion from 0.94 nl min(-1) to 0.44 nl min(-1) without significant ...
Soudack Michalle - - 2004
OBJECTIVE: Sonography is a reliable imaging tool, complementary to plain radiography in certain pediatric chest disorders. It can assist in localizing and characterizing mediastinal, pleural, and pulmonary opacities. We have found that sonography is also valuable in elucidating postoperative chest radiography. In this series, our objective was to assess the ...
Mochiki Erito - - 2004
BACKGROUND: The objective of this study was to compare the motility of a gastric substitute after jejunal interposition without a pouch and jejunal interposition with a pouch and to evaluate the relationship of both methods with nutritional outcome. METHODS: Twelve patients with gastric cancer treated by total gastrectomy and reconstruction ...
Raghavan Malathi - - 2004
A nested case-control study was conducted among 1634 dogs with complete diet information in a 5-year prospective study to determine diet-related risk factors for gastric dilatation-volvulus (GDV). Cases included 106 dogs that developed GDV; controls included 212 dogs without GDV that were frequency matched to cases by year of GDV ...
Cecil J E - - 2004
We previously showed that oral administration of a liquid soup preload was associated with a slower rate of gastric emptying and suppressed appetite more compared with intragastric administration of the same soup [Appetite 31(1998)377]. The present study was designed to investigate whether these results could be explained by the cephalic ...
Matysiak-Budnik Tamara - - 2004
AIMS: We have previously shown that H. pylori increases the passage of intact protein across the digestive epithelium, in vitro and in vivo in mice. The aim of this study was to test whether H. pylori can alter gastric permeability to a food-type antigen in humans. METHODS: Antral and corpus ...
De Stefani Eduardo - - 2004
BACKGROUND: Gastric cancer is a frequent malignancy in the Uruguayan population. In northern counties, incidence rates reach high figures (age-standardized rates [ASR], 37.3 per 100,000 men and 18.3 per 100,000 women). Diet is a major determinant in gastric carcinogenesis. Because foods or food groups have the advantage over nutrients in ...
Hoegberg Lotte Christine Groth - - 2003
The effect of added food mixture (as if food was present in the stomach of an intoxicated patient) or 4 different types of ice cream (added as a flavouring and lubricating agent) on the adsorption of paracetamol (acetaminophen) to 2 formulations of activated charcoal was determined in vitro and compared ...
Freeman Lisa M - - 2003
OBJECTIVE: To determine the dietary patterns and intake of nutrients of concern in dogs with cardiac disease. DESIGN: Prospective study. ANIMALS: 82 dogs with dilated cardiomyopathy (DCM) or chronic valvular disease. PROCEDURE: Owners of dogs were contacted and given a standardized telephone questionnaire regarding diet and a 24-hour food recall ...
Pantoflickova D - - 2003
BACKGROUND: Lactobacillus johnsonii (Lj1) had an in vitro and in vivo inhibitory effect on Helicobacter pylori. Fermented milk containing Lj1 (LC1), coadministered with antibiotics had a favourable effect on H. pylori gastritis. AIM: Evaluate the effect of LC1 intake without antibiotics on H. pylori gastritis. METHODS: Fifty H. pylori positive ...
Zharikov Yuri - - 2003
The possibility of premigratory modulation in gastric digestive performance was investigated in a long-distance migrant, the eastern curlew (Numenius madagascariensis), in eastern Australia. The rate of intake in the curlews was limited by the rate of digestion but not by food availability. It was hypothesized that before migration, eastern curlews ...
Wyse C A - - 2003
Gastric emptying is the process by which food is delivered to the small intestine at a rate and in a form that optimizes intestinal absorption of nutrients. The rate of gastric emptying is subject to alteration by physiological, pharmacological, and pathological conditions. Gastric emptying of solids is of greater clinical ...
Wagner Wencke M - - 2003
Ten gastrointestinal contrast studies were performed with barium on seven clinically healthy ostriches. Concentrations of 25-100% w/vol liquid barium sulfate at 7 and 10 ml/kg were administered by stomach tube after withholding food for 16 h. A 6-frame technique for left-to-right lateral views in standing and a 3-frame technique for ...
Prandini N - - 2003
Emptying the gallbladder is part of the complex process of food digestion. The gallbladder interacts with other gastrointestinal organs and its movements are coordinated and modified by functions of the stomach, intestine and pancreas. Many factors can modify gallbladder motility, for example, sex and age of the subject, their body ...
Gomes Guilherme F - - 2003
PURPOSE OF REVIEW: Aspiration is one of the most common complications in enterally fed patients. The source of aspiration is due to the accumulation of secretions in the pharynx of reflux gastric contents from the stomach into the pharynx. The true prevalence of aspiration is difficult to determine because of ...
Weston Brian R - - 2003
BACKGROUND: Fundic gland polyps (FGPs) are now the most common gastric polyp encountered by endoscopists. However, they have minimal clinical significance. If they could be reliably predicted by endoscopic features, it might prevent the need for and cost of biopsy. GOALS: To determine the positive predictive value of endoscopic criteria ...
Nishimukai Megumi - - 2003
The physiologic roles of dietary lecithin have not yet been clearly defined. We examined the effects of soybean lecithin on gastric emptying (Experiments 1 and 2) and food intake (Experiment 3) in rats. Male Wistar rats were fed 2 g of a 20 g lipid/100 g diet containing various levels ...
Watanabe H - - 2003
BACKGROUND AND STUDY AIMS: Food residue is often seen in the gastric remnant after partial gastrectomy, making it difficult to diagnose early cancer in the residual stomach. The aims of this study were to clarify the risk factors for the accumulation of food residue, and to study methods of preparation ...
Ouyang Hui - - 2003
Our aim was to investigate the effects of gastric electrical stimulation on food intake, weight, gastric myoelectrical, and parasympathetic activity. Dogs were implanted with serosal electrodes and a subcutaneous stimulator. The stimulator was turned on and off alternately every month for 4 months. Food intake, weight, gastric myoelectrical activity, and ...
Johnston David - - 2003
BACKGROUND: Our aim was to evolve a simpler, more physiological type of gastroplasty that would dispense with implanted foreign material such as bands and reservoirs. The Magenstrasse, or "street of the stomach", is a long narrow tube fashioned from the lesser curvature, which conveys food from the esophagus to the ...
Xing JinHong - - 2003
OBJECTIVE: It has been reported that electrical stimulation at the distal stomach can disrupt intrinsic gastric electrical activity and delay gastric emptying. Gastric dysrhythmia and impaired gastric emptying are associated with upper gastrointestinal symptoms and weight loss. The purpose of this study was to evaluate the effect of low-frequency/long-pulse gastric ...
Baintner K - - 2003
A panel of orally administered lectins (100 mg/kg b.w.) of different binding specificities was tested for suppression of voluntary food consumption in prefasted rats. PHA isolectins (Phaseolus vulgaris) and RPA-I (Robinia pseudoacacia) were found to exert a marked and significant effect, but two other gut-binding lectins, i.e. SBA (Glycine max) ...
Choi Byung-Tae - - 2003
During seasonal hibernation, there is reduced gastrointestinal activity, but relatively little is known of the physiology involved. In the present experimental study, male Korean chipmunks (Tamias sibiricus barberi) were maintained in cold conditions (6 degrees C) for 3, 5 or 9 months to mimic conditions occurring during seasonal hibernation. Changes ...
Fajardo Noel R - - 2003
OBJECTIVES: In persons with spinal cord injury (SCI), several studies have shown that large bowel transit is decreased at the level of the left colon and rectum, and that postprandial colonic response to food is absent. To define these parameters further, the effects of food on colonic motility in persons ...
Smedh Ulrika - - 2003
We investigated whether dorsal hindbrain and/or peripheral cocaine- and amphetamine-regulated transcript peptide (CARTp) acts to suppress gastric emptying of a caloric stimulus. Furthermore, effects of dorsal hindbrain CARTp on sucrose consumption and licking microstructure was studied, as well as the possible contribution of corticotropin-releasing factor (CRF) receptors to mediate effects ...
Zucoloto S - - 2002
AIM: In the present study we evaluated the effects of gastric myenteric denervation using benzalkonium chloride (BAC) on the time for gastric emptying, as well as gastric secretion, and mucosal epithelial cell size and population in rats. METHODS AND RESULTS: Wistar rats were treated with topical serosal application of BAC ...
Lentle Roger G - - 2002
We examined the physical properties of digesta from the proximal (sacciform) and distal (tubiform) regions of the forestomach of tammar and parma wallabies maintained on a ryegrass sward. The digesta exhibited high viscosity, which, in conjunction with low flow rates calculated from published retention times of particulate marker in the ...
Maltby J Roger - - 2002
PURPOSE: To compare LMA-ProSeal (LMA-PS) with endotracheal tube (ETT) with respect to pulmonary ventilation and gastric distension during laparoscopic cholecystectomy. METHODS: We randomized 109 ASA I-III adults to LMA-PS or ETT after stratifying them as non-obese or obese (body mass index > 30 kg x m-2). After preoxygenation, anesthesia was ...
Bubenik George A - - 2002
The gastrointestinal tract of vertebrate species is a rich source of extrapineal melatonin. The concentration of melatonin in the gastrointestinal tissues surpasses blood levels by 10-100 times and there is at least 400x more melatonin in the gastrointestinal tract than in the pineal gland. The gastrointestinal tract contributes significantly to ...
Hoebler C - - 2002
The release of nutrients from solid food depends on the physical and chemical characteristics of substrates, and on dynamic physiological events including pH, gastric emptying and enzymatic secretion. Our laboratory has developed an in vitro digestive system mimicking mouth and stomach processes to determine physical and chemical changes of bread ...
Feinle Christine - - 2002
This review focuses on what is known about the effects of carbohydrate on food intake, the potential mechanisms mediating these effects, and the impact of different monosaccharides in humans. The inhibition of subsequent food intake associated with ingestion of carbohydrate appears to result primarily from gastrointestinal signals, including those generated ...
Reidelberger Roger D - - 2002
We previously demonstrated that amylin inhibits food intake and gastric emptying in rats with half-maximal effective doses (ED(50)s) of 8 and 3 pmol x kg(-1) x min(-1) and maximal inhibitions of 78 and 60%, respectively. In this study of identical design, rats received intravenous infusions of salmon calcitonin (sCT), rat ...
Hirst G D S - - 2002
When intracellular recordings were made from the antral region of murine stomach, cells with three different patterns of electrical activity were detected. One group of cells generated follower potentials, the second group generated pacemaker potentials and the third group generated slow waves that consisted of primary and secondary components. Slow ...
Sobocki J - - 2002
Acute electrical stimulation of vagal nerve changes gut motility, secretion as well as absorption, and it may have effect on food intake and satiety regulation. The aim of the study was to evaluate the effect of permanent microchip mediated neuromodulation (McNm) of vagal afferent activity on GI function and body ...
Cigaina Valerio - - 2002
BACKGROUND: A novel method to treat morbid obesity is presented--gastric electrical pacing. Following animal research, human investigation in a total of 24 patients in three cohorts began in 1995. METHODS: Morbidly obese subjects (BMI > or = 40) received electrical stimulation devices in 1995/6 (n = 4), 1998 (n = ...
Katsuura Goro - - 2002
Pancreatic polypeptide (PP) is produced in pancreatic islets of Langerhans and released into the circulation after ingestion of a meal. Peripherally administered PP suppresses food intake and gastric emptying. On the other hand, central administration of PP elicits food intake and gastric emptying. Therefore, PP actions on food intake may ...
Nakane Y - - 2002
BACKGROUND: Pylorus-preserving gastrectomy (PPG) has the advantages of preventing dumping syndrome and duodenogastric reflux. However, time was required to reduce symptoms of gastric fullness or to improve food intake after surgery. The aim of this study was to investigate whether the length of the retained antral segment influenced the postoperative ...
Hume D - - 2002
The gastrointestinal tracts of 76 free-living alpine marmots ( Marmota marmota) shot during a population control program in Switzerland were collected and analysed for patterns of change in morphology and function over the period from emergence from hibernation in April to just before re-entry into hibernation in September. Between first ...
Hoksch Beatrix - - 2002
The optimal reconstruction protocol after total gastrectomy is still a matter of debate. Pouch reconstructions are developed to create a larger reservoir for food, to provide a barrier against intestinoesophageal reflux, and to lengthen the food transit time. Preservation of the duodenal passage should result in better physiologic regulation of ...
Lange Carlos E - - 2002
Gregarina ronderosi n. sp. is described based on life cycle observations conducted on nymphs and adults of its natural host, the grasshopper Dichroplus elongatus. Following ingestion of oocysts by the host, parasite development occurs between the epithelium and the food mass in the midgut and gastric caeca. Gametocysts are liberated ...
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