Abstract:
BACKGROUND:Detection of Helicobacter pylori infection in clinical routine is based either on the direct visualization of the bacterium in gastric biopsies by histology or microbiology or on the demonstration of urease activity in gastric biopsies and by the labelled-urea breath test (UBT). Omeprazole has a strong inhibitory effect on H. pylori urease activity in vitro, but its effect in vivo and thus its influence on urease-based diagnostic procedures has not been investigated systematically. AIM:To investigate whether omeprazole is able to inhibit H. pylori urease activity in vivo and, if so, at which doses. PATIENTS:Eighteen patients with H. pylori associated chronic gastritis were studied. METHODS:H pylori diagnosis was based on histology, rapid urease test and culture from antral biopsies. Following a positive H. pylori diagnosis patients received omeprazole 20mg (n = 6), 40mg (n = 6) and 80mg (n = 6) once daily for 5 days and 13C-UBT was performed on day 1, 3 and 5, 30min after each omeprazole administration. The 13C-UBT was performed with 200ml 0.1 N citric acid as test drink and 75mg 13C-urea. Breath samples were collected before and 30 min after 13C-urea administration. RESULTS:A significant inhibition of urease activity was observed only under high dose omeprazole administration (80 mg/day), and the 13C-UBT turned negative in three (50%) of these patients after 5 days therapy. CONCLUSION:Short-term omeprazole administration reduces H. pylori urease activity only at doses as high as 80 mg/day. A direct inhibition of enzyme activity as well as a reduction in the number of viable H. pylori bacteria may be responsible for this omeprazole-mediated reduction in urease activity. Urease-based diagnostic procedures for H. pylori are not suitable for patients under omeprazole therapy depending on the dose and duration of therapy.
journal_name
Eur J Gastroenterol Hepatoljournal_title
European journal of gastroenterology & hepatologyauthors
Stoschus B,Domínguez-Muñoz JE,Kalhori N,Sauerbruch T,Malfertheiner Psubject
Has Abstractpub_date
1996-08-01 00:00:00pages
811-3issue
8eissn
0954-691Xissn
1473-5687journal_volume
8pub_type
临床试验,杂志文章,随机对照试验abstract:BACKGROUND:Inflammatory bowel disease (IBD) is a debilitating immune disorder that impairs function and health-related quality of life (HRQOL). A goal of IBD treatment is mucosal healing, but it is not known whether it achieves normalization of the patients' perception of health. This can be assessed by using a cut-off...
journal_title:European journal of gastroenterology & hepatology
pub_type: 杂志文章,多中心研究
doi:10.1097/MEG.0b013e32835414b2
更新日期:2012-07-01 00:00:00
abstract:OBJECTIVE:Ulcerative colitis (UC) is predominantly a disease of non-smokers and treatment with transdermal nicotine improves symptoms in UC patients, whereas smoking seems to have a deleterious effect in patients with Crohn's disease (CD). In CD the cytokine profile is of a dominant TH1 (T helper 1) pattern whereas in ...
journal_title:European journal of gastroenterology & hepatology
pub_type: 杂志文章
doi:10.1097/00042737-199610000-00016
更新日期:1996-10-01 00:00:00
abstract:AIMS AND OBJECTIVES:To ascertain whether therapeutic endoscopic retrograde cholangiopancreatography (ERCP) for benign biliary disease in frail elderly patients with comorbid conditions can be safely undertaken in a district general hospital, and whether the procedure is facilitated by the use of short-acting general an...
journal_title:European journal of gastroenterology & hepatology
pub_type: 杂志文章
doi:10.1097/00042737-200012040-00014
更新日期:2000-04-01 00:00:00
abstract:BACKGROUND:Correa's hypothesis proposes that gastric carcinogenesis is due to atrophic gastritis and hypochlorhydria which permit gastric bacterial colonization, the reduction of dietary nitrates to nitrites and the formation of potentially carcinogenic N-nitroso compounds (NOCs). OBJECTIVE:To test the hypothesis that...
journal_title:European journal of gastroenterology & hepatology
pub_type: 杂志文章
doi:10.1097/00042737-200012020-00006
更新日期:2000-02-01 00:00:00
abstract::End-stage liver disease caused by the hepatitis C virus (HCV) is a major indication for liver transplantation. HCV re-infection after transplantation is almost constant, and recent data confirm that it significantly impairs patient and graft survival. Factors that may influence disease severity and consequent progress...
journal_title:European journal of gastroenterology & hepatology
pub_type: 杂志文章,评审
doi:10.1097/00042737-200604000-00002
更新日期:2006-04-01 00:00:00
abstract::Loss of heterozygosity (LOH) on chromosome 9 and p16 (MTS1/CDKN2) gene mutations have been reported in various human cancers. The present study aimed to determine the prevalence of LOH in 100 oesophageal squamous cell carcinomas (OSCCs) by typing microsatellite loci and mutations of the p16 gene. The methods used incl...
journal_title:European journal of gastroenterology & hepatology
pub_type: 杂志文章
doi:10.1097/00042737-200201000-00004
更新日期:2002-01-01 00:00:00
abstract:OBJECTIVES:Symptoms of achalasia are often misinterpreted, resulting in delayed diagnosis. The aims of our study were (1) to estimate the evolution of clinical and radiological features of a large population of achalasic patients between two successive periods; and (2) to determine the influence of symptoms on diagnost...
journal_title:European journal of gastroenterology & hepatology
pub_type: 杂志文章
doi:10.1097/00042737-200102000-00006
更新日期:2001-02-01 00:00:00
abstract:OBJECTIVE:To audit whether our patients with Barrett's oesophagus (BO) enter into our endoscopic surveillance programme and whether they continue with it after entry. We have determined the incidence of oesophageal adenocarcinoma among our surveyed patients. DESIGN:We retrospectively audited prospectively collected da...
journal_title:European journal of gastroenterology & hepatology
pub_type: 杂志文章
doi:10.1097/00042737-200603000-00007
更新日期:2006-03-01 00:00:00
abstract:BACKGROUND:Pancreatic enzyme preparations are a life-saving substitution for a pivotal physiological function of the entire organism that is impaired in chronic pancreatitis, cystic fibrosis and other diseases with exocrine pancreatic insufficiency. Pancreatic enzyme preparations, generically called pancreatin, are not...
journal_title:European journal of gastroenterology & hepatology
pub_type: 杂志文章
doi:10.1097/MEG.0b013e328328f414
更新日期:2009-09-01 00:00:00
abstract:BACKGROUND:National surveys have been used to obtain information on sedation and monitoring practices in endoscopy in several countries. AIMS:To provide data from Portugal and query the Portuguese endoscopists on nonanesthesiologist administration of propofol. MATERIALS AND METHODS:A 31-item web survey was sent to al...
journal_title:European journal of gastroenterology & hepatology
pub_type: 杂志文章
doi:10.1097/MEG.0000000000000245
更新日期:2015-03-01 00:00:00
abstract::Liver ultrasound has been revolutionized by the development of microbubble contrast agents and multipulse software designed to detect their nonlinear resonances. The ability to visualize all parts of the liver's vasculature, including the sinusoids, at high spatial and temporal resolution gives unique insights into th...
journal_title:European journal of gastroenterology & hepatology
pub_type: 杂志文章,评审
doi:10.1097/MEG.0b013e328011ff30
更新日期:2007-01-01 00:00:00
abstract::We present a case of a 62-year-old man with known coeliac disease who was admitted for investigation of abdominal pain and weight loss. He underwent multiple biochemical, haematological, radiological and endoscopic investigations (which were all normal) and also had a normal laparoscopy. Abdominal computerized tomogra...
journal_title:European journal of gastroenterology & hepatology
pub_type: 杂志文章
doi:10.1097/00042737-200411000-00027
更新日期:2004-11-01 00:00:00
abstract:BACKGROUND:Direct-acting antiviral (DAA) drugs have been highly effective in the treatment of chronic hepatitis C (HCV) infection. Limited data exist comparing the safety, tolerability, and efficacy of DAAs in African-American (AA) patients with chronic hepatitis C genotype 1 (HCV GT-1) in the community practice settin...
journal_title:European journal of gastroenterology & hepatology
pub_type: 杂志文章
doi:10.1097/MEG.0000000000001233
更新日期:2018-10-01 00:00:00
abstract:BACKGROUND AND AIMS:The diagnosis of spontaneous bacterial peritonitis (SBP) in patients with ascites is established by definition with a polymorphonuclear (PMN) cell count in the ascitic fluid greater than 0.250 g/l determined via cytological (microscopic) examination. In this study, we correlated the automatically as...
journal_title:European journal of gastroenterology & hepatology
pub_type: 杂志文章
doi:10.1097/00042737-200602000-00011
更新日期:2006-02-01 00:00:00
abstract:OBJECTIVE:To assess the efficacy of a hereditary non-polyposis colon cancer (HNPCC) identification and surveillance policy. METHODS:Familial clustering of colorectal cancer (CRC) and extracolonic cancers (ECs) was investigated in 1520 consecutive CRC patients and relatives. HNPCC was identified by Amsterdam criteria, ...
journal_title:European journal of gastroenterology & hepatology
pub_type: 杂志文章
doi:10.1097/00042737-200502000-00013
更新日期:2005-02-01 00:00:00
abstract:OBJECTIVE:Ulcerative colitis and Crohn's disease are the two clinical forms of inflammatory bowel disease (IBD). Diverse studies have shown the association of single nucleotide polymorphism (SNP) in molecules of the immune system and the occurrence of IBD. Here, several SNPs of the immune system with controversial resu...
journal_title:European journal of gastroenterology & hepatology
pub_type: 杂志文章
doi:10.1097/MEG.0000000000001540
更新日期:2020-01-01 00:00:00
abstract::Prophylactic antibiotics have been recommended in patients with a previous history of spontaneous bacterial peritonitis (SBP). Recently, there has been interest in the use of rifaximin for the prevention of SBP and hepatorenal syndrome (HRS). We conducted a meta-analysis to evaluate this association of rifaximin. We s...
journal_title:European journal of gastroenterology & hepatology
pub_type: 杂志文章,meta分析,评审
doi:10.1097/MEG.0000000000000940
更新日期:2017-10-01 00:00:00
abstract:BACKGROUND:Dominant biliary strictures occur commonly in patients with primary sclerosing cholangitis (PSC), who have a high risk of developing cholangiocarcinoma (CC). The natural history and optimal management of dominant strictures remain unclear, with some reports suggesting that endoscopic interventions improve ou...
journal_title:European journal of gastroenterology & hepatology
pub_type: 杂志文章
doi:10.1097/MEG.0b013e3283554bbf
更新日期:2012-09-01 00:00:00
abstract::Primary cutaneous B-cell lymphoma is a low-grade malignancy, distinct from other lymphomas in terms of biological activity and response to treatment. We describe a 77-year-old woman with a five-year history of chronic hepatitis C infection who developed a lower-limb lesion over a period of 3 months which was diagnosed...
journal_title:European journal of gastroenterology & hepatology
pub_type: 杂志文章
doi:10.1097/00042737-199906000-00014
更新日期:1999-06-01 00:00:00
abstract::Intestinal lymphangiectasia is a rare condition, which is characterized by the dilation of small bowel lymphatics and presents with signs and symptoms of protein-losing enteropathy. Some patients have complained of occlusive symptoms attributable to the mechanical obstruction caused by the considerable mucosal edema a...
journal_title:European journal of gastroenterology & hepatology
pub_type: 杂志文章
doi:10.1097/MEG.0b013e3282f5dda4
更新日期:2008-09-01 00:00:00
abstract:AIMS:The purpose of this study was to investigate the expression level of KAI-1 in gastric carcinomas and compare with the clinicopathological characteristics. METHODS:KAI-1 expressions were detected with immunohistochemical methods in 257 patients with gastric carcinomas. RESULTS:KAI-1 was highly expressed in normal...
journal_title:European journal of gastroenterology & hepatology
pub_type: 杂志文章
doi:10.1097/MEG.0b013e328323aac9
更新日期:2009-12-01 00:00:00
abstract::The introduction of expandable metal stents in the mid 1980s led to the development of transjugular intrahepatic portosystemic stent-shunt (TIPSS) as we know it today. Short-lived detrimental effects on the hyperdynamic circulation in cirrhosis accompany the acute reduction in portal pressure following TIPSS creation....
journal_title:European journal of gastroenterology & hepatology
pub_type: 杂志文章,评审
doi:10.1097/01.meg.0000236871.78280.a7
更新日期:2006-11-01 00:00:00
abstract:OBJECTIVE:To compare the systemic load of 5-aminosalicylic acid (5-ASA) as a basis for potential long-term toxicity during treatment in usual dosage with olsalazine (Dipentum) and one controlled-release mesalazine preparation (Salofalk) in patients with inactive ulcerative colitis. DESIGN:Open, randomized, crossover s...
journal_title:European journal of gastroenterology & hepatology
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1097/00042737-199611000-00010
更新日期:1996-11-01 00:00:00
abstract::A growing amount of evidence indicates that the intestinal flora plays a pathogenic role in inflammatory bowel disease (IBD): hence, the use of anti-bacterial agents as ancillary treatment in patients with ulcerative colitis, or Crohn's disease. While the results with anti-tubercular agents remain inconclusive, antibi...
journal_title:European journal of gastroenterology & hepatology
pub_type: 杂志文章,评审
doi:10.1097/00042737-200502000-00003
更新日期:2005-02-01 00:00:00
abstract:INTRODUCTION:This preliminary study aimed to investigate the effects of the probiotic Saccharomyces boulardii on proinflammatory and anti-inflammatory cytokines in patients with diarrhea-dominant irritable bowel syndrome (IBS-D). The other objectives were to document any clinical improvement as judged by symptoms, qual...
journal_title:European journal of gastroenterology & hepatology
pub_type: 杂志文章,随机对照试验
doi:10.1097/MEG.0000000000000094
更新日期:2014-06-01 00:00:00
abstract:OBJECTIVE:An association of gastric cancer and precursor lesions with gastric xanthelasma has frequently been reported. However, the incidence of both gastric xanthelasma and gastric cancer precursor lesions increases with age. The aim of this study was to evaluate the frequency and characteristics of atrophic gastriti...
journal_title:European journal of gastroenterology & hepatology
pub_type: 杂志文章
doi:10.1097/MEG.0000000000001795
更新日期:2020-09-01 00:00:00
abstract:OBJECTIVES:Severe viral hepatitis B is a disease associated with significant morbidity and mortality. Clinical controlled trials show that the efficacy of treatment of severe viral hepatitis B with glucocorticoids remains debatable. Therefore, we carried out this meta-analysis to evaluate the safety, efficacy, and side...
journal_title:European journal of gastroenterology & hepatology
pub_type: 杂志文章,meta分析,评审
doi:10.1097/MEG.0b013e32835f4cbd
更新日期:2013-08-01 00:00:00
abstract:OBJECTIVE:To determine what percentage of inoperable oesophageal and oesophagogastric malignancies could be successfully intubated for palliation, and to compare Atkinson and Celestin tubes. DESIGN:A consecutive series of 210 patients who had been referred for palliation underwent endoscopy and intubation with the Not...
journal_title:European journal of gastroenterology & hepatology
pub_type: 杂志文章
doi:
更新日期:1995-06-01 00:00:00
abstract:BACKGROUND AND AIMS:Proton pump inhibitors (PPIs) may reduce iron absorption and serum ferritin levels in patients with homeostatic iron regulator (HFE)-related hemochromatosis, reducing the need for frequent phlebotomies. Our study aimed to perform for the first time a meta-analysis of existing observational and rando...
journal_title:European journal of gastroenterology & hepatology
pub_type: 杂志文章
doi:10.1097/MEG.0000000000001857
更新日期:2020-08-04 00:00:00
abstract::A 65-year-old gentleman presented with a history of abdominal distension and difficulty in walking 10 years after a Polya partial gastrectomy. Clinical history and neurological examination suggested an axonal sensory neuropathy. A computed tomographic scan of the abdomen showed a large afferent jejunal loop, and a hyd...
journal_title:European journal of gastroenterology & hepatology
pub_type: 杂志文章
doi:10.1097/MEG.0b013e328349d030
更新日期:2011-10-01 00:00:00