Abstract:
:The bioavailability of three pure 5-aminosalicylic (5-ASA) preparations (Asacol, Claversal, and Pentasa) was studied in 8 ileostomy patients and 12 normal subjects after 6 days of treatment with 2000 mg 5-ASA. The local bioavailability, reflected by the 5-ASA concentration was thereby measured at two clinically relevant areas of the gut: at the entrance to, and the exit from the colon. Estimates of the systemic bioavailability were obtained from the urinary excretions and the plasma values of 5-ASA and Acetyl-5-ASA (Ac-5-ASA) during the three regimens. The three preparations studied are designed to release 5-ASA at different levels in the intestine, but there was no significant difference in the 5-ASA concentrations in the ileostomy effluents (Asacol 1.8 mmol/L, Claversal 3.4 mmol/L, Pentasa 2.0 mmol/L, median values). However, we found a smaller urinary excretion of 5-ASA and Ac-5-ASA (5.2% vs Claversal 27.9% and Pentasa 23.0%, median values of ingested daily dose) and a lower concentration of Ac-5-ASA in the ileostomy effluents after Asacol treatment (0.8 mmol/L, median value) which indicates a more distal release from this preparation compared with Claversal (2.4 mmol/L, median value) and Pentasa (5.5 mmol/L, median value). In normal subjects a higher faecal water concentration of 5-ASA was found after Asacol (9.8 mmol/L, median value) compared with Claversal (5.0 mmol/L, median value), whereas no difference between the faecal water concentrations of Ac-5-ASA was found (Asacol 21.5 mmol/L, Claversal 21.6 mmol/L, median values). This can be explained by a larger systemic absorption of 5-ASA from Claversal, and accordingly Claversal treatment resulted in the largest urinary excretion of 5-ASA and Ac-5-ASA (43.7% vs Asacol 35.6% and Pentasa 31.6%, median values of ingested daily dose). The high Ac-5-ASA concentration in the ileostomy effluents and in the faeces after Pentasa, and the low plasma values, indicate a slow 5-ASA release from this preparation throughout the small and large intestine. The results of the study indicate that Asacol is released in the distal part of the small intestine, that Pentasa is gradually released in the small and large intestine, and that Claversal shows an intermediate release pattern.
journal_name
Aliment Pharmacol Therjournal_title
Alimentary pharmacology & therapeuticsauthors
Christensen LA,Fallingborg J,Abildgaard K,Jacobsen BA,Sanchez G,Hansen SH,Bondesen S,Hvidberg EF,Rasmussen SNdoi
10.1111/j.1365-2036.1990.tb00499.xsubject
Has Abstractpub_date
1990-10-01 00:00:00pages
523-33issue
5eissn
0269-2813issn
1365-2036journal_volume
4pub_type
杂志文章abstract:BACKGROUND:Proton pump inhibitors are effective for the healing of oesophagitis. Standard doses of omeprazole, lansoprazole or pantoprazole are sufficient for healing in mild to moderate cases of oesophagitis. AIM:To compare the efficacy of double the standard doses of omeprazole, lansoprazole or pantoprazole for main...
journal_title:Alimentary pharmacology & therapeutics
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1046/j.1365-2036.1998.00278.x
更新日期:1998-01-01 00:00:00
abstract:BACKGROUND:In 1997-1998, 6127 asymptomatic children aged 2-4 years were screened for coeliac disease (CD) by anti-endomysium (EmA) testing in the Netherlands. After 6 (+/-2) months, biopsies were performed in 57 seropositive children; 31(54%) had villous atrophy, but 26 (46%), all HLA-DQ2/DQ8 positive, had normal histo...
journal_title:Alimentary pharmacology & therapeutics
pub_type: 杂志文章,多中心研究
doi:10.1111/j.1365-2036.2009.04226.x
更新日期:2010-04-01 00:00:00
abstract:AIM:To study the effect of prokinetic treatment with cisapride in patients with constipation-predominant irritable bowel syndrome. PATIENTS AND METHODS:Ninety-six patients were randomly assigned to treatment with either cisapride 5 mg three times daily or placebo three times daily for a period of 12 weeks. The dosage ...
journal_title:Alimentary pharmacology & therapeutics
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:10.1046/j.1365-2036.1997.133311000.x
更新日期:1997-04-01 00:00:00
abstract:BACKGROUND:Non-ulcer dyspepsia is predominantly a self-managed condition, although it accounts for a significant number of general practitioner consultations and hospital referrals. Herbal medicinal products are often used for the relief of dyspeptic symptoms. AIMS:: To critically assess the evidence for and against h...
journal_title:Alimentary pharmacology & therapeutics
pub_type: 杂志文章,评审
doi:10.1046/j.1365-2036.2002.01339.x
更新日期:2002-10-01 00:00:00
abstract:BACKGROUND:Abnormal gall-bladder motility has been reported in diabetics. The objective was to evaluate the effect of chronic D2-dopamine receptor inhibition on gall-bladder emptying in diabetic patients. METHODS:Under double-blind placebo-controlled conditions and according to a crossover design, patients were random...
journal_title:Alimentary pharmacology & therapeutics
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1111/j.1365-2036.1995.tb00369.x
更新日期:1995-04-01 00:00:00
abstract:BACKGROUND:Obscure gastrointestinal bleeding (OGIB) is a commonly encountered clinical problem in gastroenterology and is associated with significant morbidity and mortality. The investigation and management of OGIB has changed dramatically over the past decade with the advent of newer gastroenterological and radiologi...
journal_title:Alimentary pharmacology & therapeutics
pub_type: 杂志文章,评审
doi:10.1111/j.1365-2036.2011.04744.x
更新日期:2011-08-01 00:00:00
abstract::The choice of medical therapies for Crohn's disease continues to grow. Although our understanding of the mechanisms of the disease is incomplete, increasing knowledge of the pathogenesis of inflammation in general and Crohn's disease in particular allows targeting of therapies at various points in the immunoinflammato...
journal_title:Alimentary pharmacology & therapeutics
pub_type: 杂志文章,评审
doi:10.1111/j.1365-2036.1996.tb00173.x
更新日期:1996-02-01 00:00:00
abstract::The success of a clinical trial is judged by achieving statistical and clinical significance on the primary endpoint. This is particularly relevant in those trials that are initiated to achieve regulatory approval of a new therapeutic agent. Selection of an endpoint for which statistical significance will be too diffi...
journal_title:Alimentary pharmacology & therapeutics
pub_type: 杂志文章,评审
doi:10.1111/j.1365-2036.2006.02839.x
更新日期:2006-04-01 00:00:00
abstract:BACKGROUND:ONO-2952 is a novel and selective inhibitor of translocator protein 18 kDa that reduces stress-induced defecation and visceral hyperalgesia in rat models. AIM:To evaluate the efficacy and safety of ONO-2952 in females with irritable bowel syndrome with diarrhoea in an exploratory proof-of-concept study. ME...
journal_title:Alimentary pharmacology & therapeutics
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1111/apt.13839
更新日期:2017-01-01 00:00:00
abstract::Secretin-producing enteroendocrine cells arise from a multipotential endocrine progenitor in the crypts of the small intestine. As these cells migrate up the crypt-villus axis, they produce secretin and stop dividing as they terminally differentiate and die. Transcription of the secretin gene is controlled by a comple...
journal_title:Alimentary pharmacology & therapeutics
pub_type: 杂志文章,评审
doi:10.1046/j.1365-2036.2000.014s1170.x
更新日期:2000-04-01 00:00:00
abstract:BACKGROUND:In Sweden, the most common causes of liver cirrhosis are alcohol overconsumption and hepatitis C. However, recent data on the clinical characteristics of Swedish patients with cirrhosis are scarce. AIMS:To determine the incidence, clinical presentation, aetiological spectrum and survival rates of liver cirr...
journal_title:Alimentary pharmacology & therapeutics
pub_type: 杂志文章
doi:10.1111/apt.13635
更新日期:2016-06-01 00:00:00
abstract:BACKGROUND:Proton pump inhibitors have been found to be effective in numerous studies in patients with peptic ulcer disease, particularly associated with Helicobacter pylori and gastro-oesophogeal reflux disorders. Optimal healing rates of antisecretory therapy for peptic acid disease is dependent upon the degree and d...
journal_title:Alimentary pharmacology & therapeutics
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1046/j.1365-2036.1998.00306.x
更新日期:1998-04-01 00:00:00
abstract:BACKGROUND:Double stenting of oesophagus and airways may be required in palliative treatment of patients with locally advanced oesophageal cancer. AIM:To assess feasibility, efficacy and complications occurring in patients with locally advanced oesophageal cancer receiving both oesophagus and airways stenting. METHOD...
journal_title:Alimentary pharmacology & therapeutics
pub_type: 杂志文章
doi:10.1111/j.1365-2036.2007.03280.x
更新日期:2007-04-15 00:00:00
abstract::The effect of mefenamic acid on bowel transit time was investigated. Seven healthy adult male subjects of age 39 +/- 2.4 years (mean +/- S.E.M.) received placebo or mefenamic acid (500 mg t.d.s) orally in randomized order for five days, with a 7-day washout between studies. On the third morning after starting the drug...
journal_title:Alimentary pharmacology & therapeutics
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1111/j.1365-2036.1990.tb00488.x
更新日期:1990-08-01 00:00:00
abstract::Suppositories containing 300 mg 5-aminosalicylic acid (1.96 mmol) or 425 mg acetyl-5-aminosalicylic acid (1.96 mmol) were used in 40 patients with idiopathic proctitis to determine the efficacy of acetyl-5-aminosalicylic acid in treating this bowel inflammation. Each patient was treated with 5-aminosalicylic acid or a...
journal_title:Alimentary pharmacology & therapeutics
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1111/j.1365-2036.1988.tb00668.x
更新日期:1988-02-01 00:00:00
abstract:BACKGROUND:Strong suppression of viral replication and normalization of alanine aminotransferase is feasible with nucleos(t)ide analogues. It is estimated viral replication and liver inflammation can be controlled in 90% of patients with chronic hepatitis B with the current available treatments. AIM:To review the stud...
journal_title:Alimentary pharmacology & therapeutics
pub_type: 杂志文章,评审
doi:10.1111/j.1365-2036.2007.03481.x
更新日期:2007-12-01 00:00:00
abstract:BACKGROUND:We are unaware of any solid theoretical or pathophysiological basis for selecting pH 4 or any other pH value to assess oesophageal acid exposure or to define oesophageal reflux episodes. AIM:To examine the frequency of different oesophageal pH values in control and GERD subjects. METHODS:Oesophageal pH was...
journal_title:Alimentary pharmacology & therapeutics
pub_type: 临床试验,杂志文章
doi:10.1111/j.1365-2036.2004.02278.x
更新日期:2004-12-01 00:00:00
abstract:BACKGROUND:Following a nil per os (NPO) regimen, most patients with acute pancreatitis (AP) can resume normal oral intake within 1 week. If not tolerated, it is recommended to initiate artificial feeding, preferably by the enteral route. AIM:To evaluate the nutritional management of patients with AP in a Dutch cohort ...
journal_title:Alimentary pharmacology & therapeutics
pub_type: 杂志文章,多中心研究
doi:10.1111/j.1365-2036.2008.03814.x
更新日期:2008-11-01 00:00:00
abstract:BACKGROUND:Microscopic colitis (MC) is a common chronic diarrhoeal disease, and remission can be induced with budesonide. However, diarrhoea relapses frequently when budesonide is tapered and a few patients become budesonide intolerant. AIM:To examine retrospectively the effect of azathioprine (AZA) and mercaptopurine...
journal_title:Alimentary pharmacology & therapeutics
pub_type: 杂志文章,多中心研究
doi:10.1111/apt.12261
更新日期:2013-04-01 00:00:00
abstract:BACKGROUND:Limited data are available on the efficacy and safety of antiviral therapy in geriatric patients with chronic hepatitis C virus (HCV) infection. AIM:To evaluate the efficacy and safety of pegylated interferon (pegIFN) plus ribavirin (RBV) therapy in geriatric HCV-infected patients. METHODS:Ninety-one geria...
journal_title:Alimentary pharmacology & therapeutics
pub_type: 杂志文章
doi:10.1111/apt.12112
更新日期:2013-01-01 00:00:00
abstract:BACKGROUND:Low-dose thiopurine-allopurinol (LDTA) combination therapy is a commonly applied optimisation strategy in IBD patients with a skewed thiopurine metabolism. AIM:To assess continued LDTA maintenance treatment at annual intervals and explore risk factors for treatment cessation METHODS: Adult IBD patients trea...
journal_title:Alimentary pharmacology & therapeutics
pub_type: 杂志文章
doi:10.1111/apt.15402
更新日期:2019-08-01 00:00:00
abstract:BACKGROUND:Adalimumab, at an induction dose of 160/80 mg followed by 40 mg every other week is approved for treatment of refractory Crohn's disease (CD) and for patients with loss of response to infliximab. AIM:To evaluate the indications for adalimumab, the proportion of inflammatory bowel disease patients who requir...
journal_title:Alimentary pharmacology & therapeutics
pub_type: 杂志文章
doi:10.1111/j.1365-2036.2008.03878.x
更新日期:2009-02-01 00:00:00
abstract:BACKGROUND:A gluten-free diet is currently the only reliable therapeutic strategy that is approved for coeliac disease (CD). For many patients, however, compliance remains inadequate. AIM:To investigate the immunogenicity of wheat flour that was pre-treated with selected lactobacilli and fungal proteases (hydrolysed w...
journal_title:Alimentary pharmacology & therapeutics
pub_type: 杂志文章,随机对照试验
doi:10.1111/apt.14175
更新日期:2017-08-01 00:00:00
abstract:OBJECTIVE:To determine whether flumecinol (3-trifluoromethyl-alpha-ethylbenzhydrol, Zixoryn) is effective in ameliorating pruritus of cholestasis, particularly in primary bilary cirrhosis. METHODS AND RESULTS:50 patients (46 with primary biliary cirrhosis, PBC) took oral flumecinol 600 mg or identical placebo once wee...
journal_title:Alimentary pharmacology & therapeutics
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1111/j.1365-2036.1994.tb00297.x
更新日期:1994-06-01 00:00:00
abstract:BACKGROUND:Drug toxicity is a well-known cause of acute pancreatitis (AP). Although many drugs have been associated with AP, the magnitude of the risk of most of them remains largely unknown. AIM:To determine the pancreatotoxic risk of a wide range of drugs. METHODS:The hospital-based Berlin case-control surveillance...
journal_title:Alimentary pharmacology & therapeutics
pub_type: 杂志文章
doi:10.1111/apt.12461
更新日期:2013-10-01 00:00:00
abstract:BACKGROUND:The efficacy of cyclosporin in the management of ulcerative colitis is recognized. Not all patients respond to this treatment. Existing clinical and laboratory parameters are of little use in identifying those most likely to respond. AIMS:To determine whether in-vitro sensitivity to cyclosporin as measured ...
journal_title:Alimentary pharmacology & therapeutics
pub_type: 杂志文章
doi:10.1046/j.1365-2036.2001.00977.x
更新日期:2001-05-01 00:00:00
abstract:BACKGROUND:Application of electrical stimulation to the gut, primarily the stomach, has rapidly advanced in the last two decades, from mostly animal studies to the clinical arena. Most studies focused on the use of electrical stimulation for gastroparesis, the only approved indication for such intervention. AIM:To rev...
journal_title:Alimentary pharmacology & therapeutics
pub_type: 杂志文章,评审
doi:10.1111/j.1365-2036.2009.04082.x
更新日期:2009-10-01 00:00:00
abstract:BACKGROUND:Duodenal injury persists in some coeliac disease patients despite gluten-free diet, and is associated with adverse outcomes. AIM:To determine the prevalence and clinical risk factors for persistent villus atrophy among symptomatic coeliac disease patients. METHODS:A nested cross-sectional analysis was perf...
journal_title:Alimentary pharmacology & therapeutics
pub_type: 杂志文章,多中心研究,随机对照试验
doi:10.1111/apt.13988
更新日期:2017-04-01 00:00:00
abstract:BACKGROUND:Although lactulose and polyethylene glycol are osmotic laxatives widely used in the treatment of chronic constipation, no study has been conducted to compare their actions on the colonic bacterial ecosystem, which has an important influence on host health. AIM:To assess the effects of lactulose and polyethy...
journal_title:Alimentary pharmacology & therapeutics
pub_type: 临床试验,杂志文章,多中心研究,随机对照试验
doi:10.1111/j.1365-2036.2004.01918.x
更新日期:2004-04-15 00:00:00
abstract::We compared the effects of fasting and feeding on the antisecretory actions of ranitidine in 19 patients whose duodenal ulcers remained unhealed or relapsed despite treatment with the drug. Nine of the patients received, and continued with, 150 mg ranitidine b.d. and 10 took 300 mg ranitidine b.d. In all patients, gas...
journal_title:Alimentary pharmacology & therapeutics
pub_type: 杂志文章
doi:10.1111/j.1365-2036.1989.tb00238.x
更新日期:1989-10-01 00:00:00