Abstract:
BACKGROUND:Growth factors such as epidermal growth factor (EGF) and transforming growth factor alpha (TGF alpha) have been shown to share common receptor (EGFR) and to accelerate ulcer healing due to stimulation of cell proliferation, but the time sequence of expression of EGF and TGF alpha during ulcer healing has not been investigated. In this study the rate of cell proliferation and the gastric secretion and gene expression of mRNA for EGF and TGF alpha were determined during ulcer healing. METHODS:Gastric ulcers were induced in 150 Wistar rats by serosal application of 100% acetic acid (ulcer area, 14 mm2). Some of these animals were also equipped with a gastric fistula for the assessment of gastric secretion during ulcer healing. The animals were killed 0, 2, 4, 6, or 8 days after ulcer induction, and the ulcer area was determined. The mucosal sections with gastric ulcer were immunostained for proliferating cell nuclear antigen (PCNA) and for immunoexpression of EGF, TGF alpha, and EGFR. The expression of mRNA EGF and mRNA TGF alpha was also determined in the ulcer margin by reverse transcriptase (RT) polymerase chain reaction (PCR) using specific primers. RESULTS:Two, 4, 6, and 8 days after ulcer induction the gastric ulcer area was gradually reduced from the initial size (day 0) by 47%, 70%, 80%, and 87%, respectively, and this was accompanied by an increase in PCNA with its maximum on day 4. The gastric acid and pepsin secretion was significantly reduced by 75% and 79%, respectively, on day 2 after ulcer induction but then the secretion tended to return to normal value by day 8. The expression of EGF, TGF alpha, and EGFR was negligible on day 0 but increased significantly during the healing, reaching maximum on day 4. Expression of EGF mRNA was detected on days 2, 4, and 6, and that of TGF alpha mRNA on days 2, 4, 6, and 8 after ulcer induction, with the most intense signals for both transcripts observed on day 2. CONCLUSIONS:1) The enhancement in cell proliferation during ulcer healing may be mediated by increased release of EGF and TGF alpha; 2) the expression of EGF and TGF alpha mRNA precedes the overexpression of these growth factors at the ulcer margin during ulcer healing; and 3) the overexpression of growth factors coincides with the inhibition of gastric secretion and increased blood flow at the ulcer margin, indicating that these factors affect gastric secretion and blood flow in the course of ulcer healing.
journal_name
Scand J Gastroenteroljournal_title
Scandinavian journal of gastroenterologyauthors
Konturek PC,Brzozowski T,Konturek SJ,Ernst H,Drozdowicz D,Pajdo R,Hahn EGdoi
10.3109/00365529709025056subject
Has Abstractpub_date
1997-01-01 00:00:00pages
6-15issue
1eissn
0036-5521issn
1502-7708journal_volume
32pub_type
杂志文章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::Twenty-five patients with dyspepsia were included. In 19 patients with a median age of 48 (range, 20-72) years endoscopy and histologic examination of biopsy specimens from the antrum and corpus of the stomach showed Helicobacter pylori-positive gastritis as the only pathologic finding. In six patients with a median a...
journal_title:Scandinavian journal of gastroenterology
pub_type: 杂志文章
doi:10.3109/00365529409090451
更新日期:1994-02-01 00:00:00
abstract:BACKGROUND:We investigated prolactin and cortisol response to fenfluramine in non-psychiatric patients with chronic functional gastrointestinal disorder (FGD). METHODS:Sixty milligrams fenfluramine was given orally to 55 subjects without any DSM-III axis-1 psychopathology and 29 healthy control subjects matched for se...
journal_title:Scandinavian journal of gastroenterology
pub_type: 临床试验,杂志文章
doi:10.1080/00365529850171602
更新日期:1998-07-01 00:00:00
abstract::Fasting, meal-stimulated, and insulin-hypoglycemia-stimulated serum gastrin levels were measured before and 3 and 12 months after gastric bypass surgery in nine obese patients. The basal gastrin concentration was unaffected by the operation. After a meal both serum gastrin and blood glucose levels were significantly i...
journal_title:Scandinavian journal of gastroenterology
pub_type: 杂志文章
doi:10.3109/00365528109180995
更新日期:1981-01-01 00:00:00
abstract:BACKGROUND:Zinc (Zn) is protective and enhances epithelial repair in gut diseases. In this study we investigate the localization and distribution of Zn and its binding protein, metallothionein (MT), in the gut of rats fed diets varying in Zn content. METHODS:Male-Sprague Dawley rats were fed low, normal, high, or exce...
journal_title:Scandinavian journal of gastroenterology
pub_type: 杂志文章
doi:10.1080/003655299750025895
更新日期:1999-07-01 00:00:00
abstract::Antral exclusion was performed in seven adult male Sprague-Dawley rats, which were killed 10 weeks later. Fasting serum gastrin concentrations were almost four times higher than in unoperated controls. There was a slight increase in the thickness of the gastric mucosa, but quantitative electron microscopy showed no si...
journal_title:Scandinavian journal of gastroenterology
pub_type: 杂志文章
doi:10.3109/00365528209181059
更新日期:1982-01-01 00:00:00
abstract::Fasting plasma levels of immunoreactive gastrin, somatostatin, and pancreatic polypeptide (PP) were determined in 67 patients with an endoscopically proven duodenal, pyloric, or prepyloric ulcer. Pretreatment gastrin (45.6 +/- 53.6 pmol/l, mean +/- S.D.) and somatostatin (54.5 +/- 27.5 pg/ml) did not differ significan...
journal_title:Scandinavian journal of gastroenterology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.3109/00365528209181048
更新日期:1982-01-01 00:00:00
abstract::The positional specificity of the phospholipase A in human gallbladder epithelium was studied by using biosynthetically radioabeled diacylphosphoglycerides as substrates. Diacylphosphoglyceride in 14C-palmitic acid-labeled, autoclaved E.coli was hydrolyzed under the formation of monoacylphosphoglyceride and fatty acid...
journal_title:Scandinavian journal of gastroenterology
pub_type: 杂志文章
doi:10.3109/00365527809181915
更新日期:1978-01-01 00:00:00
abstract::To characterize spontaneous anorectal pressure activity and a possible relation between the activity in the rectum and the anal canal, 11 healthy female volunteers were investigated. Resting activities were obtained during 1-h recordings with a multi-channel perfused catheter measuring the pressure 1, 2, 3, 7, and 8 c...
journal_title:Scandinavian journal of gastroenterology
pub_type: 杂志文章
doi:10.3109/00365528909092248
更新日期:1989-01-01 00:00:00
abstract::The efficacy of furazolidone and chloramphenicol was compared in a randomized trial involving 133 children with bacteriologically confirmed typhoid fever. Sixty-five children were randomized to receive furazolidone, 7.5 mg/kg/day, and 68 children to receive chloramphenicol, 75 mg/kg/day. Both drugs were administered o...
journal_title:Scandinavian journal of gastroenterology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.3109/00365529309096065
更新日期:1993-02-01 00:00:00
abstract::We endoscoped 322 of 422 patients with end-stage renal failure undergoing maintenance dialysis treatment to determine the prevalence of erosive prepyloric changes (EPC) in uraemia. EPC grade 1 was found in 79 patients (25%), grade 2 in 16 (5%), and grade 3 in 43 (13%). EPC grades 2 and 3 were commoner among uraemic pa...
journal_title:Scandinavian journal of gastroenterology
pub_type: 杂志文章
doi:10.3109/00365529008997602
更新日期:1990-07-01 00:00:00
abstract::Our aim was to study the cell kinetics and epithelial structure in the ileum and colon of conventional and germfree AGUS rats by means of a classic stathmokinetic technique. A slight hyperplasia was observed in the villi of germfree animals (p < 0.05), associated with a comparatively short cell cycle time. The crypt c...
journal_title:Scandinavian journal of gastroenterology
pub_type: 杂志文章
doi:10.3109/00365529409096836
更新日期:1994-05-01 00:00:00
abstract:BACKGROUND:Maintaining disease remission throughout pregnancy in women with inflammatory bowel disease is of the utmost importance to decrease the risk of adverse outcome. In general, corticosteroids are safe to use during pregnancy, but no data exist in the specific use of budesonide MMX. We report four cases of budes...
journal_title:Scandinavian journal of gastroenterology
pub_type: 杂志文章
doi:10.1080/00365521.2018.1533583
更新日期:2018-12-01 00:00:00
abstract::[3H]retinal- or [3h]cholesterol- and [14C]fatty acid-labeled chylomicrons and chylomicron remnants were injected intravenously into normal rats and rats subjected to partial or total obstruction of the bile duct 8 or 48 h earlier. The clearance from plasma of the [3H]retinyl and the [3H]cholesteryl esters in 30-120 mi...
journal_title:Scandinavian journal of gastroenterology
pub_type: 杂志文章
doi:10.3109/00365528009181798
更新日期:1980-01-01 00:00:00
abstract:OBJECTIVE:Emergency surgery after unsuccessful endoscopic therapy for bleeding duodenal ulcer has been reported to have a high mortality. Transcatheter arterial embolization (TAE) of the gastroduodenal artery is an alternative strategy when endoscopic therapy fails. This study is a retrospective analysis comparing thes...
journal_title:Scandinavian journal of gastroenterology
pub_type: 杂志文章
doi:10.3109/00365520903486109
更新日期:2010-03-01 00:00:00
abstract::In a consecutive series of 46 possible candidates for total colectomy, mucosal proctectomy, and ileal reservoir to an anal anastomosis, we have compared the clinical outcome of group I, with a long efferent leg (12 cm), and group II, with a short efferent leg (3-5 cm). The surgical procedure was done in three steps: f...
journal_title:Scandinavian journal of gastroenterology
pub_type: 杂志文章
doi:10.3109/00365528509088877
更新日期:1985-11-01 00:00:00
abstract:BACKGROUND:Matrix metalloproteinases (MMPs) and their inhibitors (TIMPs) have recently been shown to be important in tissue breakdown and remodeling in gut with inflammatory bowel disease. The role of MMPs and TIMPs remains largely unexplored in Helicobacter pylori-associated gastritis (HAG). The aim of this study was ...
journal_title:Scandinavian journal of gastroenterology
pub_type: 杂志文章
doi:10.1080/00365520410003245
更新日期:2004-11-01 00:00:00
abstract::The cellular infiltrate in the walls of resected ileum and colon specimens obtained from patients with Crohn's disease was analysed. Mononuclear cells in tissue sections were characterized by the use of surface membrane markers and immuno-histochemical and enzyme histochemical techniques. It was found that: [1] B cell...
journal_title:Scandinavian journal of gastroenterology
pub_type: 杂志文章
doi:10.3109/00365527909179842
更新日期:1979-01-01 00:00:00
abstract:BACKGROUND:Dipeptidyl peptidase IV (DP IV, CD26), a serine protease with broad tissue distribution and known activity in serum, participates in T cell activation and promotes a Th1 cytokine response, a function in part attributable to its enzymatic activity. We hypothesized that the activity of DP IV in serum and expre...
journal_title:Scandinavian journal of gastroenterology
pub_type: 杂志文章
doi:10.1080/003655201750422675
更新日期:2001-10-01 00:00:00
abstract:OBJECTIVE:Impaired butyrate metabolism plays a part in ulcerative colitis (UC). To assess the usefulness of measuring butyrate metabolism as an indication of inflammatory activity, we investigated the rate of butyrate metabolism by breath test after administering [1-(13)C]-butyrate rectally to patients with UC. MATERI...
journal_title:Scandinavian journal of gastroenterology
pub_type: 杂志文章
doi:10.1080/00365520600955070
更新日期:2007-02-01 00:00:00
abstract::Abdominal and mental symptoms were assessed in 103 outpatients with chronic peptic ulcer disease. Patients with present symptoms and a history of duodenal or prepyloric ulcer were included if they had no other disorder requiring treatment. A normal female population was used for comparison of mental symptoms. Besides ...
journal_title:Scandinavian journal of gastroenterology
pub_type: 临床试验,杂志文章
doi:10.3109/00365528509089674
更新日期:1985-05-01 00:00:00
abstract::We investigated the action of the new aminosalicylate olsalazine (disodium azodisalicylate) on arachidonic acid metabolism in comparison with 5-aminosalicylic acid (5-ASA) and sulphasalazine (SASP) by in vitro incubation of cellular homogenates from human polymorphonuclear (PMNL) and mononuclear (MNL) leukocytes with ...
journal_title:Scandinavian journal of gastroenterology
pub_type: 杂志文章
doi:10.3109/00365529109037024
更新日期:1991-08-01 00:00:00
abstract:BACKGROUND:International guidelines recommend cholecystectomy within 2-4 weeks after mild to moderate acute biliary pancreatitis (ABP) to prevent recurrence. We aimed to investigate the compliance to guidelines concerning early cholecystectomy and the associated costs. METHODS:Admissions for ABP 2011-2013 were retrosp...
journal_title:Scandinavian journal of gastroenterology
pub_type: 杂志文章
doi:10.1080/00365521.2016.1243258
更新日期:2017-03-01 00:00:00
abstract:OBJECTIVE:Diagnosing early-stage acute autoimmune hepatitis (AIH) without pathological findings is difficult. Recent reports indicated that macrophages are not activated during disease development, unlike in other acute liver injuries. We suggest that hepatitis without macrophage activation should lack sinusoidal fibri...
journal_title:Scandinavian journal of gastroenterology
pub_type: 杂志文章
doi:10.3109/00365521.2016.1168865
更新日期:2016-08-01 00:00:00
abstract:BACKGROUND:Helicobacter pylori plays a key role in production of reactive oxygen metabolites (ROMs). However, the importance of virulent CagA-positive H. pylori strains remains to be determined. The aim of this study was to assess ROMs production in gastric biopsies of patients infected by H. pylori. Results were corre...
journal_title:Scandinavian journal of gastroenterology
pub_type: 临床试验,杂志文章
doi:10.1080/003655201750074474
更新日期:2001-03-01 00:00:00
abstract::Objective: The morbidity and mortality of gastric cancer (GC) is high, but there are lack of the biomarkers for early diagnosis and progression of GC. We aimed to identify a novel biomarker for the growth and progression of GC.Methods: The Cancer Genome Atlas (TCGA) database including 352 eligible patients was used to...
journal_title:Scandinavian journal of gastroenterology
pub_type: 杂志文章
doi:10.1080/00365521.2020.1737883
更新日期:2020-03-01 00:00:00
abstract:OBJECTIVES:Assessing the experience of screening procedures is crucial for improving the quality and acceptance of colonoscopy in colorectal cancer screening. The aim of the study was to investigate the colonoscopy experience and associated factors among individuals who underwent a colonoscopy in the Screening of Swedi...
journal_title:Scandinavian journal of gastroenterology
pub_type: 杂志文章
doi:10.1080/00365521.2020.1820568
更新日期:2020-11-01 00:00:00
abstract:OBJECTIVE:Many patients, especially women, suffer from severe gastrointestinal pain and dysmotility for several years without being diagnosed. Depletion of gonadotropin-releasing hormone (GnRH) in the enteric nervous system (ENS) has been described in some patients. The aim of this study was to examine the expression o...
journal_title:Scandinavian journal of gastroenterology
pub_type: 杂志文章
doi:10.3109/00365521.2012.706826
更新日期:2012-10-01 00:00:00
abstract::The effect of intravenous administration of adrenaline, noradrenaline, and isoprenaline on gastric mucosal flow, measured by hydrogen clearance techniques, showed that small doses of adrenaline induced slight mucosal vasodilatation in anaesthetized cats. In both anaesthetized and conscious animals both noradrenaline a...
journal_title:Scandinavian journal of gastroenterology
pub_type: 杂志文章
doi:10.3109/00365528209181076
更新日期:1982-08-01 00:00:00
abstract:BACKGROUND:Morphologic, histochemical, and cytoproliferative characteristics differentiate hyperplastic polyps from adenomas. Even so, these polyps are indicators of populations with a high colorectal cancer risk. Since changes in mucosal cell proliferation are highly predictive biomarkers of the adenomacarcinoma seque...
journal_title:Scandinavian journal of gastroenterology
pub_type: 杂志文章
doi:10.3109/00365529509093288
更新日期:1995-04-01 00:00:00