Abstract:
:The involvement of oxygen free radicals in the development of the ethanol-induced gastric mucosal damage has been investigated. We found that oral administration of superoxide dismutase reduced the incidence of ethanol-induced mucosal lesions. Reduction of superoxide dismutase activity by diethyldithiocarbamate led to a pronounced aggravation of mucosal damage. Inhibition of the chloride-bicarbonate channel by a stilbene derivative also aggravated the ethanol-induced hemorrhagic lesions. Neither glutathione peroxidase, catalase, nor ceruloplasmin were capable of inhibiting the development of mucosal damage. Compounds with scavenging properties such as thiourea, 1-phenyl-3-(2-thiazolyl)-2-thiourea, dimethyl sulfoxide, various inorganic compounds (elements of the first and second subgroups and of the sixth group of the periodic table) and sulfhydryl-containing substances protected the gastric mucosa against ethanol-induced injury in a dose-related manner. Naturally occurring antioxidants such as alpha-tocopherol, beta-carotene, and coenzyme Q10 were ineffective. The present results suggest that superoxide free radicals are involved in the development of ethanol-induced gastric mucosal lesions, probably via an interaction with cellular membranes.
journal_name
Dig Dis Scijournal_title
Digestive diseases and sciencesauthors
Szelenyi I,Brune Kdoi
10.1007/BF01550977subject
Has Abstractpub_date
1988-07-01 00:00:00pages
865-71issue
7eissn
0163-2116issn
1573-2568journal_volume
33pub_type
杂志文章abstract::Among the multifactorial causes of undernutrition in old age, gastrointestinal mucosa altered function and resulting specific malabsorption are the most relevant. Despite numerous studies that have dealt with the effects of aging on the digestive tract of mammals, results showed discrepancies in terms of proliferation...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1023/b:ddas.0000037826.94345.f8
更新日期:2004-08-01 00:00:00
abstract::A biliary form of the alpha 1-acid glycoprotein (AAG) promotes cholesterol crystallization in the lower-molecular-weight, concanavalin A-bound fraction of gallbladder bile. In addition, bile AAG concentration is higher in cholesterol gallstone patients with multiple stones than in control patients without gallstone di...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1007/BF02065520
更新日期:1995-06-01 00:00:00
abstract::Somatostatin inhibits colonic ion secretion in animal models and cultured intestinal cell lines via somatostatin receptor subtype 2 and subtype 1, respectively. In a recent in vitro ion transport study of the human colon, somatostatin was shown to stimulate short-circuit current, a measure of electrogenic ion transpor...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1023/a:1012392307462
更新日期:2001-11-01 00:00:00
abstract::We investigated the effect of pH change on octapeptide cholecystokinin's ability to contract guinea pig gallbladder strips. In the absence of exogenous drugs, pH changes had no demonstrable effect on gallbladder tension. However, when gallbladder strips were contracted with CCK-OP at pH 7.3, increasing the pH in the m...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1007/BF01297218
更新日期:1982-07-01 00:00:00
abstract::The neutralizing capacity of two antacids (Alucol = A, Syntrogel = S), differing both in their composition and theoretical neutralizing capacity, was evaluated in vitro and in vivo. In vitro at pH 3.5, 1 ml of A or S neutralizes 3.9 and 1.6 meq of acid, respectively, in an aqueous solution. When tested in vivo in the ...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1007/BF01320257
更新日期:1985-06-01 00:00:00
abstract::Achalasia is an esophageal motility disorder of unknown etiology. Several studies suggest possible herpes or measles virus etiology, but results are inconclusive. The aim of this study was to test whether herpesvirus (HV), measles (MV), or human papilloma virus (HPV) sequences could be detected in myotomy specimens fr...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1023/a:1018805600276
更新日期:1997-02-01 00:00:00
abstract:BACKGROUND:Sorafenib, a drug that inhibits Raf serine/threonine kinases mediating cell proliferation and receptor tyrosine kinases involved in angiogenesis, is approved for treatment of advanced hepatocellular carcinoma. AIMS:To explore the efficacy and safety of sorafenib for treating advanced HCC, and to identify cl...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章,评审
doi:10.1007/s10620-012-2136-1
更新日期:2012-05-01 00:00:00
abstract::The protein ornithine decarboxylase antizyme (AZ) is inhibitory to both polyamine transport and synthesis. Experiments were performed to examine the distribution and regulation of AZ mRNA in cells of the small intestinal epithelium, a tissue exposed to high concentrations of extracellular polyamines and high levels of...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1023/a:1015886212653
更新日期:2002-07-01 00:00:00
abstract::Gastroparesis is characterized by delayed gastric emptying, with symptoms such as nausea, vomiting and abdominal pain, in the absence of mechanical obstruction. In most cases, it is idiopathic although diabetes mellitus is another leading cause. The physiology of gastric emptying is a complex process which is influenc...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章,评审
doi:10.1007/s10620-020-06287-2
更新日期:2020-06-01 00:00:00
abstract::Maintenance of intragastric pH > 4 is vital for effective management of gastroesophageal reflux disease (GERD). Esomeprazole 40 mg, the first proton pump inhibitor developed as an optical isomer, demonstrates improved acid inhibition over omeprazole 20 mg. Our aim was to compare esomeprazole 40 mg with omeprazole 40 m...
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:1015009300955
更新日期:2002-05-01 00:00:00
abstract::An 18-year-old male who developed a pancreatic pseudocyst during the active phase of polyarteritis nodosa is described. Cytotoxic therapy with cyclophosphamide and prednisolone was unable to control the manifestation of this disease, and he required percutaneous drainage of the pseudocyst. The drainage resulted in com...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章,评审
doi:10.1007/BF01296089
更新日期:1993-07-01 00:00:00
abstract::The present study reports the results of intravenous cyclosporine in 32 patients with refractory and/or severe attacks of ulcerative colitis (UC). Twenty of 32 patients responded to intravenous cyclosporine; cyclosporine was clinically effective and improved colonic lesions. However, one colonic perforation and one po...
journal_title:Digestive diseases and sciences
pub_type: 临床试验,杂志文章
doi:10.1007/BF02100145
更新日期:1996-12-01 00:00:00
abstract::Congenital gastric outlet anomalies are rarely seen defects resulting from early embryologic development of foregut. We report a case of congenital pyloric outlet anomaly in a 60-year-old man with mild postprandial epigastric discomfort of approximately 3 months' duration. Endoscopic examination of the stomach showed ...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1007/s10620-006-9228-8
更新日期:2007-04-01 00:00:00
abstract:BACKGROUND:The renin-angiotensin system (RAS) is activated in inflammatory bowel disease (IBD), and vitamin D deficiency aggravates the development of colitis, but the relationship between the local colonic RAS and vitamin D is unclear with regard to the pathogenesis of IBD. AIMS:To investigate whether vitamin D suppr...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1007/s10620-020-06713-5
更新日期:2021-01-12 00:00:00
abstract::We describe a 36-year-old man with advanced multiple myeloma (Salmon and Durie stage III) who developed jaundice and severe cholestasis after a first cure with systemic chemotherapy of vincristine, doxorubicin, and oral dexamethasone (VAD). Serology for hepatitis A, B, and C and for CMV was negative. A liver ultrasoun...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1023/a:1014773512707
更新日期:2002-04-01 00:00:00
abstract::Hepatocellular carcinoma (HCC) is a highly morbid and prevalent cancer globally. While high quality evidence for mortality benefit of HCC surveillance is lacking, early detection of HCC is likely beneficial as prognosis is highly correlated with tumor stage. High risk populations, including patients with cirrhosis and...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章,评审
doi:10.1007/s10620-020-06550-6
更新日期:2020-12-01 00:00:00
abstract::Hepatopulmonary syndrome has yet not been sufficiently assessed in noncirrhotic portal hypertension. The prevalence of hepatopulmonary syndrome was determined in 31 consecutive patients with noncirrhotic portal hypertension (19 idiopathic portal hypertension, 7 portal vein thrombosis, 5 congenital hepatic fibrosis) an...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1023/a:1022549018807
更新日期:2003-03-01 00:00:00
abstract::The prevalence of lymphocytic gastritis, a specific form of chronic gastritis characterized by infiltration of gastric superficial epithelium with T lymphocytes, has been established in nonulcer dyspepsia. Among a population sample of 586 patients at risk for gastric carcinoma, 0.83% of patients with nonulcer dyspepsi...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1007/BF01297450
更新日期:1991-08-01 00:00:00
abstract::Antimony electrodes are clinically useful because of their low cost and simple construction; they have no glass to break. There is only a few hundred ohms resistance between an antimony pH electrode and the reference electrode so that the voltage generated can be recorded with simple low-impedance recorders linked to ...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1007/BF01537242
更新日期:1990-08-01 00:00:00
abstract:BACKGROUND:COVID-19 has caused a backlog of endoscopic procedures; colonoscopy must now be prioritized to those who would benefit most. We determined the proportion of screening and surveillance colonoscopies appropriate for rescheduling to a future year through strict adoption of US Multi-Society Task Force (USMSTF) g...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1007/s10620-020-06539-1
更新日期:2020-08-16 00:00:00
abstract::Endoscopic injection sclerotherapy is known to cause a variety of motility abnormalities, but the correlation between these changes and symptomatology has not been clearly defined. To assess the effects of endoscopic sclerosis of varices on esophageal function and symptoms, we prospectively studied esophageal motility...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1007/BF01318367
更新日期:1985-01-01 00:00:00
abstract::The purpose of this study was to examine the effect of perfusion of the colon with a fatty acid (oleic acid) on peptone-stimulated gastric acid secretion and release of gastrin in conscious dogs. Gastric acid secretion was monitored by continuous intragastric titration. Perfusion of the colon with sodium oleate (24 mm...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1007/BF01297136
更新日期:1991-07-01 00:00:00
abstract::This study compared women with irritable bowel syndrome who had a history of an anxiety or depressive disorder to those without symptoms of either disorder on indicators of cardiac parasympathetic activity, autonomic nervous system balance, and general autonomic activity. The Diagnostic Interview Schedule was used to ...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1023/a:1021904216312
更新日期:2003-02-01 00:00:00
abstract:BACKGROUND:Birth characteristics, including weight and gestational age, may be associated with risk of Barrett's esophagus (BE), the only known precursor for esophageal adenocarcinoma; however, data are limited. AIMS:To examine associations between various birth characteristics and BE, and whether these associations a...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1007/s10620-015-3967-3
更新日期:2016-04-01 00:00:00
abstract::This study was undertaken to investigate the effect of ingestion of 80 g Vivonex on gallbladder volume, plasma cholecystokinin (CCK), and pancreatic polypeptide (PP) in eight healthy volunteers and to compare the results with those obtained after ingestion of 60 ml corn oil. Gallbladder volumes were measured by ultras...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1007/BF01296686
更新日期:1987-01-01 00:00:00
abstract:BACKGROUND:We previously reported that preoperative chemolipiodolization of the whole liver is effective for reducing the incidence of postoperative recurrence and prolonging survival in patients with resectable hepatocellular carcinoma (HCC). The present randomized controlled trial was performed to evaluate the influe...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章,随机对照试验
doi:10.1007/s10620-012-2029-3
更新日期:2012-05-01 00:00:00
abstract::It has been suggested that elevated serum lipoprotein cholesterol levels may be a determinant of biliary cholesterol saturation and cholesterol gallstone disease. The aim of this study was to correlate serum lipoprotein cholesterol and apolipoprotein levels with biliary cholesterol saturation in patients with gallston...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1007/BF01317086
更新日期:1984-12-01 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:BACKGROUND:Studies examining the mortality risk of inflammatory bowel disease (IBD) have yielded conflicting results, and most do not account for recent advancements made in the treatment of Crohn's disease (CD) and ulcerative colitis (UC). We aim to assess the overall, premature, and cause-specific mortality in IBD pa...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1007/s10620-018-5430-8
更新日期:2019-06-01 00:00:00
abstract::The initiating mechanisms involved in colonic injury are currently unknown. The goal of the current study was to examine the role of the inflammatory mediators reactive oxygen metabolites and proteases in an ex vivo model of selective epithelial permeability. Rats were prepared with exteriorized colonic chambers to wh...
journal_title:Digestive diseases and sciences
pub_type: 杂志文章
doi:10.1007/BF02209017
更新日期:1995-10-01 00:00:00