Abstract:
:Previous studies showed that bile salts had a promoting effect on colon cancer development and this effect was inhibited by ursodeoxycholate (UDC). We recently found that both human colorectal adenomas and carcinomas were associated with a specific decrease in alkaline sphingomyelinase activity. In this work, we compared the effects of ursodeoxycholate and other bile salts on the levels of rat intestinal alkaline sphingomyelinase both in the intestinal loops and after oral administration. Bile salts at different concentrations were injected into intestinal loops and the dissociation of alkaline sphingomyelinase from the mucosa was assayed. We found that bile salts, including taurocholate, taurodeoxycholate, glycocholate, glycochenodeoxycholate, and 3-(3-cholamidopropyl dimethylammonio)-1-propanesulonate (CHAPS), dose dependently dissociated alkaline sphingomyelinase from the intestinal mucosa. UDC alone did not dissociate the enzyme but significantly inhibited the dissociation caused by other bile salts and CHAPS. Feeding rats with 0.3% (w/w) taurocholate for four days decreased peak activity of intestinal alkaline sphingomyelinase by 39% and total activity in the intestine by 20% and increased the output of the enzyme in the feces. In contrast, feeding 0.3% (w/w) UDC for four days increased the peak activity of alkaline sphingomyelinase in the small intestine by 87% and the activity in the colon by 187%. The total activity of alkaline sphingomyelinase was increased by 80% and the output of the enzyme in the feces was only slightly increased by UDC administration. The changes in alkaline phosphatase after feeding taurocholate and UDC were much smaller. Our results indicate that UDC and other bile salts have different effects on the levels of alkaline sphingomyelinase, which may be implicated in their different influences on cancer development reported previously.
journal_name
Dig Dis Scijournal_title
Digestive diseases and sciencesauthors
Duan RD,Cheng Y,Tauschel HD,Nilsson Adoi
10.1023/a:1018807600683subject
Has Abstractpub_date
1998-01-01 00:00:00pages
26-32issue
1eissn
0163-2116issn
1573-2568journal_volume
43pub_type
杂志文章abstract:BACKGROUND:Eosinophilic esophagitis is among the causes of refractory reflux disease. Biopsy of esophagus is the gold standard for diagnosis. In this study we determined the frequency of eosinophilic esophagitis (EE) in refractory reflux cases referred to Motility Department of Shahid Beheshti Research Center of Gastro...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1007/s10620-008-0706-z
更新日期:2010-01-01 00:00:00
abstract::There are no requirements concerning the amplitude of simultaneous contractions among the present criteria for the manometric diagnosis of diffuse esophageal spasm. The purpose of this investigation was to determine whether the current criteria effectively identify an appropriately homogenous patient population. Sixty...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1007/BF02088558
更新日期:1996-07-01 00:00:00
abstract:BACKGROUND:Wnt ligand binding initiates the interaction between Frizzled and Dvl proteins. However, the regulation of Frizzled-Dvl proteins interaction remains largely unknown. AIMS:The present study aims to elucidate the regulation of Frizzled-Dvl interaction by WDR34. METHODS:The protein levels of WDR34 in hepatoce...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1007/s10620-019-05583-w
更新日期:2019-09-01 00:00:00
abstract::Zinc is an essential trace element, exerting important antioxidant, anti-inflammatory, and antiapoptotic effects. It affects growth and development and participates in processes such as aging and cancer induction. The liver is important for the regulation of zinc homeostasis, while zinc is necessary for proper liver f...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章,评审
doi:10.1007/s10620-006-9462-0
更新日期:2007-07-01 00:00:00
abstract::Gastric stasis and duodenogastric reflux have each been implicated in the pathogenesis of various upper gastrointestinal disorders. However, the relationship between intragastric bile and gastric emptying has not been explored. In each of nine healthy volunteers (seven men and two women, ages 22-47 years), gastric emp...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1007/BF01535751
更新日期:1988-03-01 00:00:00
abstract:BACKGROUND AND AIM:Although cholesterol levels are elevated in patients with primary biliary cirrhosis (PBC), most PBC patients are not at increased risk of dying from atherosclerotic heart disease. There is, however, a subgroup, approximately 10%, who have additional disorders of lipid metabolism. They might benefit f...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1007/s10620-009-0988-9
更新日期:2010-07-01 00:00:00
abstract:BACKGROUND:One of the problems associated with infliximab (IFX) treatment for Crohn's disease (CD) is loss of response during maintenance therapy. AIMS:The aim of this multicenter, retrospective, cohort study was to determine whether enteral nutrition (EN) added to the IFX therapy regimen is effective for maintaining ...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1007/s10620-012-2374-2
更新日期:2013-05-01 00:00:00
abstract::The growth of the human gastrinoma model (PT) in athymic nude mice is stimulated by bombesin (BBS), an amphibian peptide homologous to both human gastrin-releasing peptide (GRP) and neuromedin B (NMB). The mechanism is not known, and a potent and specific GRP-R antagonist BIM26226, which has low affinity for NMB-R, wa...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1007/BF02071398
更新日期:1996-11-01 00:00:00
abstract::[13C]Acetate and [13C]octanoate breath tests were used to analyze the gastric emptying of liquids and solids in healthy controls and patients with functional dyspepsia both with and without cisapride. A standard test meal was labeled with either 150 mg [13C]acetate (liquid phase labeled in the water) or with 100 mg [1...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1007/BF02209007
更新日期:1995-10-01 00:00:00
abstract::These studies were done to determine the effects of fluoride (F) on the structure and function of the canine gastric mucosa and the possible protective effects of 16,16-dimethyl-prostaglandin E2 (dmPGE2). A portion of the stomach with its vascular supply intact was mounted in a two-compartment chamber, one side of whi...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1023/a:1018895207333
更新日期:1997-10-01 00:00:00
abstract:BACKGROUND:Recent data suggest the involvement of both the adaptive and the innate immune system in celiac disease (CD). However, little is known about the immune phenotype of children with CD and its alteration upon dietary intervention. AIMS:We characterized the prevalence of major interacting members of the adaptiv...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1007/s10620-010-1363-6
更新日期:2011-03-01 00:00:00
abstract:BACKGROUND:Fibromyalgia (FM) is a disorder characterized by widespread chronic pain as core symptom and a broad range of comorbidities. Despite the prevalence of gastrointestinal (GI) comorbidities in patients with FM, GI functions have rarely been investigated in animal models of FM. AIMS:The purpose of the present s...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1007/s10620-019-05577-8
更新日期:2019-09-01 00:00:00
abstract::We have previously shown that methane on lactulose breath test (LBT) is highly associated with constipation in IBS and that methane gas itself slows small bowel transit in dogs. Previous studies suggest that serotonin may have a role in the control of transit in IBS. In this study, we aim to evaluate the role of serot...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1023/b:ddas.0000011607.24171.c0
更新日期:2004-01-01 00:00:00
abstract::The effect of chemical deafferentation, vagotomy (VGX), and gangliosympathectomy (GSX) on the density of fibers containing calcitonin gene-related peptide (CGRP) and substance P (Sub.P) in the rat gastric wall was studied. Chemical deafferentation by capsaicin abolished the density of CGRP-immunoreactive (IR) fibers, ...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1023/a:1018858208532
更新日期:1997-06-01 00:00:00
abstract::We report a case of Pseudomonas aeruginosa liver abscesses following endoscopic retrograde cholangiopancreatography (ERCP) in a patient without evidence of biliary tract disease and of any known cause of hepatic infection. Computer tomography (CT) scan was the best method of diagnosis, allowing, through guided percuta...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1007/BF01297196
更新日期:1987-09-01 00:00:00
abstract:BACKGROUND:Neoadjuvant chemoradiation reduces local recurrence in locally advanced rectal cancer, and adherence to national and societal recommendations remains unknown. OBJECTIVE:To determine variability in guideline adherence in rectal cancer treatment and investigate whether hospital volume correlated with variabil...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1007/s10620-017-4610-2
更新日期:2017-08-01 00:00:00
abstract::In our hospital within one year two patients with Crohn's disease were seen who developed an acute myelocytic leukemia. A review of the literature reveals eight previously reported patients with both Crohn's disease and leukemia. Six of the reported 10 patients have had acute myelocytic leukemia and, interestingly, th...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章,评审
doi:10.1007/BF01540575
更新日期:1990-12-01 00:00:00
abstract:OBJECTIVES:Few studies compare gastroesophageal reflux (GER) parameters of cystic fibrosis (CF) children and symptomatic non-CF children. We aimed to compare the impedance-pH (IMP-pH) parameters for these two groups and to test the hypothesis that prolonged acid exposure in CF patients is due to delayed chemical cleara...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1007/s10620-013-2950-0
更新日期:2014-03-01 00:00:00
abstract::Hepatocellular carcinoma (HCC) as an indication to liver transplant (LT) started as palliative treatment, then moved to potentially curative anti-cancer therapy and more recently entered the era of competition with non-cancer indications, consequent to the need of the society to target equal distribution of the limite...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章,评审
doi:10.1007/s10620-019-05538-1
更新日期:2019-04-01 00:00:00
abstract::Small bowel tumors are rare, accounting for 1-2% of all gastrointestinal neoplasms. We sought to determine the diagnostic and therapeutic impact of double-balloon enteroscopy (DBE) in patients with small bowel tumors. Between January 2005 and March 2008, 78 patients underwent 96 DBE. All nine patients (seven males; me...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1007/s10620-008-0512-7
更新日期:2009-07-01 00:00:00
abstract::To evaluate pancreatic exocrine function in uremia, 25 patients undergoing regular hemodialysis without clinical evidence of pancreatic disease and 25 healthy control subjects were studied by fecal elastase 1 and chymotrypsin. Abdominal ultrasonography and measurement of serum lipase, calcium, phosphate, and parathorm...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1023/a:1026487807555
更新日期:2000-11-01 00:00:00
abstract::This study was designed to determine the possible effects of omeprazole on human natural killer cells. Peripheral venous blood samples were taken from 20 peptic ulcer patients before and at the 14th and the 28th days of omeprazole treatment. Mononuclear cells were removed from blood and their capability of making conj...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1007/s10620-007-9869-2
更新日期:2008-02-01 00:00:00
abstract::This study was undertaken to determine whether the synthetic prostaglandin E2 analog enprostil is able to inhibit basal and postprandial hypergastrinemia induced by omeprazole. We also studied the effect of omeprazole, enprostil, and the combination of both drugs on serum pepsinogen A and C levels. Eight normal subjec...
journal_title:Digestive diseases and sciences
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1007/BF02088350
更新日期:1994-03-01 00:00:00
abstract::A novel probe was developed from genomic DNA of Helicobacter pylori ATCC type strain 43629. It hybridized with all 73 H. pylori clinical isolates tested but not with any of 183 non-H. pylori DNAs in dot blot hybridization. Typing tests revealed 41 different HaeIII-digestion patterns from 57 H. pylori strains tested. B...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1023/a:1018847522200
更新日期:1998-06-01 00:00:00
abstract::In the early 1970s an increased prevalence of gallstones was reported in adults and children with immunoglobulin deficiency. As the advent of ultrasonography has largely changed the diagnostic approach to gallstones, we have reevaluated the prevalence of cholelithiasis in a group including 37 patients with common vari...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1007/BF01540173
更新日期:1990-06-01 00:00:00
abstract:BACKGROUND:The principle of treating-to-target has been successfully applied to many diseases with significant improvement in patient care and as a useful guidance for healthcare providers. Appreciation of the central role for arterial vasodilatation in the pathogenesis of hepatorenal syndrome (HRS) has led to routine ...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1007/s10620-014-3483-x
更新日期:2015-05-01 00:00:00
abstract::The aim of this study was to compare the effect on HCV RNA levels of using induction dosing with 5 MU interferon-alpha2b (IFN) given daily for four weeks followed by 5 MU IFN given three times a week (TIW) for 44 weeks vs standard noninduction TIW dosing of 5 MU IFN for 48 weeks. We randomly assigned 135 patients with...
journal_title:Digestive diseases and sciences
pub_type: 临床试验,杂志文章,随机对照试验
doi:10.1023/a:1014792017251
更新日期:2002-04-01 00:00:00
abstract::To investigate the pathophysiological basis of Courvoisier's law, the gallbladder size and pliability were measured in chronic calculous cholecystitis with (7 patients) or without (25 patients) common duct obstruction, in periampullary malignancy (6 patients), and in the normal state (3 patients). The duration and lev...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1007/BF01393358
更新日期:1983-01-01 00:00:00
abstract::Campylobacter pyloridis has been associated with antral gastritis and duodenal ulcer. To study the pathogenetic role of these organisms in duodenal ulcer, endoscopic biopsies, two from the first part of duodenum, four from antrum, and four from body and fundus, were taken before and after four weeks of cimetidine trea...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1007/BF01296375
更新日期:1987-11-01 00:00:00
abstract:BACKGROUND AND AIMS:Previous studies have demonstrated the value of systematic feedback in enhancing endoscopic procedure performance. It remains unknown whether feedback may play a role in modifying physician performance in outpatient practice. This study aimed to assess the impact of systematic feedback on duration o...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1007/s10620-011-1673-3
更新日期:2011-10-01 00:00:00