Abstract:
:Six pigs (49-69 kg) were anaesthetized and fitted with cannulas in the brachiocephalic artery and portal and jugular veins. In addition, inlet-outlet perfusion cannulas were placed in segments of the small and large intestine. Intravenous infusion of urea for 2 h increased arterial plasma urea from a base-line level of 176 (SE, 51) mg/l up to 292 (SE, 67) mg/l after 5 h. During this rise portal ammonia levels remained fairly constant, with minimum and maximum values of 1.2 (SE, 0.3) and 1.7 (SE, 0.6) mg/l, respectively. The average amount of urea recovered in perfusates from small- and large-intestinal segments were 141.4 and 43.8, respectively (p less than 0.001), when expressed as micrograms/g tissue/30 min. It thus appears as if the portal blood is not an important carrier of ammonia liberated from the hydrolysis of urea and that the gastrointestinal tract is differentially permeable to urea at different levels.
journal_name
Scand J Gastroenteroljournal_title
Scandinavian journal of gastroenterologyauthors
Malmlöf K,Simoes Nunes Cdoi
10.3109/00365529209000129subject
Has Abstractpub_date
1992-07-01 00:00:00pages
620-4issue
7eissn
0036-5521issn
1502-7708journal_volume
27pub_type
杂志文章abstract:OBJECTIVE:To assess the efficacy and safety of sedation of propofol combined with traditional sedative agents (PTSA) for gastrointestinal endoscopy, we conducted a meta-analysis of randomized controlled trials (RCTs) comparing PTSA with propofol-alone sedation. MATERIAL AND METHODS:RCTs comparing the effects of PTSA a...
journal_title:Scandinavian journal of gastroenterology
pub_type: 杂志文章,meta分析
doi:10.3109/00365521.2012.737360
更新日期:2013-01-01 00:00:00
abstract:BACKGROUND:Drinking capacity is often reduced in functional dyspepsia. Drink tests may therefore have diagnostic potential. A simple drink test in combination with ultrasonography was applied in this study, the aim being to find the best drink for this test. METHODS:On separate days, 10 patients with functional dyspep...
journal_title:Scandinavian journal of gastroenterology
pub_type: 杂志文章
doi:10.1080/00365520410003344
更新日期:2004-10-01 00:00:00
abstract:OBJECTIVE:Prompt and long-standing acid control following once-daily administration of antisecretory drugs is desirable. The objective of this study was to determine whether co-administration of a well-characterized H2-receptor antagonist, famotidine, can be combined with the proton-pump inhibitor omeprazole. MATERIAL...
journal_title:Scandinavian journal of gastroenterology
pub_type: 杂志文章,随机对照试验
doi:10.1080/00365520601026665
更新日期:2007-06-01 00:00:00
abstract::Objective: International guidelines recommend hepatocellular carcinoma (HCC) surveillance with ultrasound in high-risk patients with chronic liver diseases. However, there is low-strength evidence about the effects on mortality. The aim of our study was to assess the impact of surveillance on the clinical course and s...
journal_title:Scandinavian journal of gastroenterology
pub_type: 杂志文章
doi:10.1080/00365521.2020.1718747
更新日期:2020-02-01 00:00:00
abstract::The effect of sham feeding on pancreatic-polypeptide (PP) secretion was studied in 26 duodenal ulcer (DU) patients and in 8 healthy subjects. Modified sham feeding (MSF) by the 'chew and spit' technique induced a rapid increase in plasma concentrations of PP both in DU patients, 56 (2-138) pmol/l, and in the healthy s...
journal_title:Scandinavian journal of gastroenterology
pub_type: 杂志文章
doi:10.3109/00365527909179889
更新日期:1979-01-01 00:00:00
abstract:OBJECTIVE:Barrett's esophagus (BE) is a risk factor for esophageal adenocarcinoma. In addition to its classical endocrine character known for hemodynamic regulation, the renin-angiotensin system (RAS) can be associated with inflammation, wound healing, and cancer. The aim of this study was to explore a potential expres...
journal_title:Scandinavian journal of gastroenterology
pub_type: 杂志文章
doi:10.1080/00365521.2016.1174881
更新日期:2016-09-01 00:00:00
abstract::A systematic approach is outlined for the preparation of a whole series of immunoreactive 125I-labeled gastrointestinal regulatory peptides with high specific radioactivities. In our hands, the theoretically superior Iodo-gen method has no more to offer than the harsher chloramine-T method in the iodination of secreti...
journal_title:Scandinavian journal of gastroenterology
pub_type: 杂志文章
doi:10.3109/00365528509089682
更新日期:1985-05-01 00:00:00
abstract:BACKGROUND:Patients with intestinal disease are at risk of developing selenium deficiency due to impaired intestinal absorption. The aim of the present study was to evaluate selenium status and to identify predictive factors of selenium depletion in patients with gastrointestinal disease. METHODS:The concentration of ...
journal_title:Scandinavian journal of gastroenterology
pub_type: 杂志文章
doi:10.1080/003655298750026750
更新日期:1998-10-01 00:00:00
abstract::In the period 1970 to 1987, 171 patients with small-intestinal mucosal atrophy have been hospitalized in our department. Of these, 132 patients fulfilled the diagnostic criteria of coeliac disease on the basis of histologic findings and clinical improvement on a gluten-free diet. Aspartate aminotransferase (ASAT), ala...
journal_title:Scandinavian journal of gastroenterology
pub_type: 杂志文章
doi:10.3109/00365529008997589
更新日期:1990-07-01 00:00:00
abstract:OBJECTIVE:As a minimally invasive modality, radiofrequency ablation (RFA) has been increasingly applied not only for the treatment of hepatocellular carcinoma, but also for that of colorectal liver metastasis (CLM). However, RFA for CLM has been shown to be associated with a high local recurrence rate, and no optimal t...
journal_title:Scandinavian journal of gastroenterology
pub_type: 杂志文章
doi:10.3109/00365521.2014.893013
更新日期:2014-05-01 00:00:00
abstract::We measured pressures of the papillary sphincter zone and pancreatic main duct endoscopically in 20 control subjects and in 38 patients with chronic pancreatitis without papillary stenosis, including 19 cases believed to be in the early stages of chronic pancreatitis. There was no significant difference between contro...
journal_title:Scandinavian journal of gastroenterology
pub_type: 杂志文章
doi:10.3109/00365528809093901
更新日期:1988-05-01 00:00:00
abstract:OBJECTIVE:Gastric cancer confined to the muscularis propria (mp) has a favorable prognosis, but still belongs to the advanced category. Many oncologists have difficulties in selecting treatment modalities owing to the confused situation of mp cancer. To clarify the therapeutic strategy, the clinicopathological characte...
journal_title:Scandinavian journal of gastroenterology
pub_type: 杂志文章
doi:10.1080/00365520410009302
更新日期:2005-04-01 00:00:00
abstract:BACKGROUND:Previous studies have shown the colonoscopy quality affected by the endoscopist's fatigue. This study was aimed to evaluate this potential factor in a colorectal cancer-screening cohort of Chinese patients. METHODS:The attendances at department of gastroenterology for colorectal cancer screening between 201...
journal_title:Scandinavian journal of gastroenterology
pub_type: 杂志文章
doi:10.1080/00365521.2018.1433230
更新日期:2018-03-01 00:00:00
abstract::The diagnostic value of barium meal and endoscopy for the diagnosis of gastric ulcer and cancer was studied in 173 unselected patients with upper abdominal dyspepsia. The predictive value of both positive and negative results was higher for endoscopy than for barium meal. This was also found in earlier studies compris...
journal_title:Scandinavian journal of gastroenterology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.3109/00365528009181429
更新日期:1980-01-01 00:00:00
abstract:OBJECTIVE:The aim of the study was to evaluate the role of 8-OHdG (8-hydroxy-2'-deoxyguanosine) detecting oxidative stress response following cholecystectomy in a randomised multicentre study of patients with minilaparotomy cholecystectomy (MC) versus laparoscopic cholecystectomy (LC). METHODS:Initially, 106 patients ...
journal_title:Scandinavian journal of gastroenterology
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1080/00365521.2016.1208270
更新日期:2016-12-01 00:00:00
abstract::The immunological result of infection with Hepatitis C virus (HCV) depends on the delicate balance between a vigorous immune response that may clear the infection, but with a risk of unspecific inflammation and, or a less inflammatory response that leads to chronic infection. In general, exhaustion and impairment of c...
journal_title:Scandinavian journal of gastroenterology
pub_type: 杂志文章,评审
doi:10.3109/00365521.2016.1170875
更新日期:2016-11-01 00:00:00
abstract:OBJECTIVE:Enterotoxigenic Escherichia coli (ETEC) is the leading cause of travelers' diarrhea. The aim of this study was to investigate the ability of a powdered extract of hyperimmune bovine colostrum to protect against diarrhea in volunteers challenged with ETEC. MATERIALS AND METHODS:Tablets were manufactured from ...
journal_title:Scandinavian journal of gastroenterology
pub_type: 杂志文章,随机对照试验
doi:10.3109/00365521.2011.574726
更新日期:2011-07-01 00:00:00
abstract::A method is described for the detection and monitoring of bleeding in the upper gastrointestinal tract. A short-lived radionuclide (113In-m) is used. Acute bleeding in the upper gastrointestinal tract in patients without signs of shock and preshock usually stopped within a short time after onset. ...
journal_title:Scandinavian journal of gastroenterology
pub_type: 杂志文章
doi:
更新日期:1975-01-01 00:00:00
abstract:OBJECTIVE:Exclusive polymeric diet enriched with transforming growth factor-beta 2 (ANS-TGF-β2) has been used for remission induction and maintenance in pediatric Crohn's disease (CD). Its use in the preoperative setting has never been evaluated. The aim of this study was to evaluate preoperative ANS-TGF-β2 to decrease...
journal_title:Scandinavian journal of gastroenterology
pub_type: 杂志文章
doi:10.1080/00365521.2016.1221994
更新日期:2017-01-01 00:00:00
abstract:BACKGROUND:Interdigestive small-intestinal motility is suppressed by hyperglycemia and also by hyperinsulinemia per se. Since hyperinsulinemia may increase sympathetic activity, the present study was undertaken to ascertain to what extent insulin affects phase III of the migrating motor complex (MMC) and MMC-related du...
journal_title:Scandinavian journal of gastroenterology
pub_type: 杂志文章
doi:10.3109/00365529509093267
更新日期:1995-03-01 00:00:00
abstract:BACKGROUND:Gastrointestinal angiodysplasias (GIAD) bleeding and obscure gastrointestinal bleeding (OGIB) are increasing health problems. Somatostatin analogues have been proposed as rescue therapy, but data for lanreotide are scarce. OBJECTIVE:To determine the efficacy, safety and resource saving of long-acting lanreo...
journal_title:Scandinavian journal of gastroenterology
pub_type: 杂志文章
doi:10.1080/00365521.2018.1547921
更新日期:2018-12-01 00:00:00
abstract::Jejunal biopsy in 33 patients before and after intestinal shunt operation for obesity has demonstrated that neither surface nor volume of the villi increase after surgery. Specific disaccharidase activity remained unchanged, and specific alkaline phosphatase activity increased slightly. There was a significant decreas...
journal_title:Scandinavian journal of gastroenterology
pub_type: 杂志文章
doi:
更新日期:1976-01-01 00:00:00
abstract::Using an in vitro system, the effect of gastrin on the colonic handling of water and electrolytes has been investigated. Gastrin converted the normal mucosal absorption of water and sodium into a net secretion. The colonic response to gastrin was done-related with respect to sodium, and the effects were greater when i...
journal_title:Scandinavian journal of gastroenterology
pub_type: 杂志文章
doi:10.3109/00365527709181364
更新日期:1977-01-01 00:00:00
abstract::After intravenous injection of autologous purified and radiolabeled anionic and cationic trypsinogens in the dog, there is a multiexponential elimination from serum of the trypsinogens without activation to active trypsins. The results are in agreement with an elimination of the trypsinogens iva glomerular filtration,...
journal_title:Scandinavian journal of gastroenterology
pub_type: 杂志文章
doi:10.3109/00365528109181969
更新日期:1981-01-01 00:00:00
abstract::In a series of 45 consecutive duodenal ulcer patients (DU) the activities of 10 marker enzymes from the brush border, basolateral membrane, mitochondria, and lysosomes were determined by analysis of homogenized material taken with biopsy forceps through an endoscope from the antral and body part of the stomach. They w...
journal_title:Scandinavian journal of gastroenterology
pub_type: 杂志文章
doi:10.3109/00365529009095535
更新日期:1990-06-01 00:00:00
abstract::Rectal mucosal biopsies of 13 patients suffering from ulcerative colitis, 7 patients presenting symptomatology typical of irritable colon, and 7 control persons were studied by the recently introduced glyoxylic-acid-induced fluorescence histochemical method. In ulcerative colitis, compared to control specimens: 1) the...
journal_title:Scandinavian journal of gastroenterology
pub_type: 杂志文章
doi:10.3109/00365527709180942
更新日期:1977-01-01 00:00:00
abstract:OBJECTIVE:Interferon-free therapy for hepatitis C virus (HCV) infection is costly, and therefore patients with advanced fibrosis are prioritized. Although coupled with considerable side effects, a large proportion of genotype 2/3 infected patients achieve a sustained virological response (SVR) following interferon-base...
journal_title:Scandinavian journal of gastroenterology
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.3109/00365521.2015.1087588
更新日期:2016-03-01 00:00:00
abstract::Objectives: Low-dose aspirin is the standard treatment for the prevention of cardiovascular events in at-risk patients. We performed a randomized, placebo-controlled study to determine the efficacy of teprenone for primary prevention of gastrointestinal injury in patients taking LDA for vascular protection.Methods: Pa...
journal_title:Scandinavian journal of gastroenterology
pub_type: 杂志文章,随机对照试验
doi:10.1080/00365521.2019.1672781
更新日期:2019-10-01 00:00:00
abstract:OBJECTIVE:Pancreatic cancer continues to be an urgent clinical problem. We used the novel DNA methyltransferase inhibitor Zebularine and the histone deacetylase inhibitor SAHA to investigate the epigenetic influence on viability and differentiation of the pancreatic cancer cell lines YAP C, DAN G and Panc-89 in vitro a...
journal_title:Scandinavian journal of gastroenterology
pub_type: 杂志文章
doi:10.1080/00365520600874198
更新日期:2007-01-01 00:00:00
abstract::Gastrointestinal (GI) symptoms can precede by many years the motor symptoms of Parkinson's disease (PD) and these patients can show some degree of inflammation associated with abnormal aggregates of alpha-synuclein in the GI tract. The abnormal accumulation of alpha-synuclein and the spreading of the aggregates from t...
journal_title:Scandinavian journal of gastroenterology
pub_type: 杂志文章
doi:10.1080/00365521.2019.1641739
更新日期:2019-07-01 00:00:00